From 8299d1f057439f94c6a4412e2e5c5082b82a30c9 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Sat, 21 Aug 2021 10:54:34 +0200
Subject: [PATCH] bcm27xx: add kernel 5.10 support
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
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Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
 target/linux/bcm27xx/bcm2708/config-5.10      |   366 +
 target/linux/bcm27xx/bcm2709/config-5.10      |   464 +
 target/linux/bcm27xx/bcm2710/config-5.10      |   448 +
 target/linux/bcm27xx/bcm2711/config-5.10      |   463 +
 target/linux/bcm27xx/modules/sound.mk         |    20 +
 target/linux/bcm27xx/modules/video.mk         |     8 +-
 ...vert-702b94bff3c50542a6e4ab9a4f4cef0.patch |    99 +
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 ...cm2836-Avoid-Invalid-trigger-warning.patch |    24 +
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 ...0039-Main-bcm2708-bcm2709-linux-port.patch |   150 +
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 ...180-Default-to-the-first-valid-input.patch |    45 +
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 ...-bcm2835-Use-zd-when-printing-size_t.patch |    24 +
 ...-ov5647-Use-gpiod_set_value_cansleep.patch |    54 +
 ...iq-Add-in-the-Bayer-encoding-formats.patch |    51 +
 ...iq-Update-mmal_parameters.h-with-rec.patch |    56 +
 ...iq-Free-the-event-context-for-contro.patch |    28 +
 ...-vchiq-Fix-memory-leak-in-error-path.patch |    76 +
 ...ake-GPIO-an-output-for-strong-pullup.patch |    27 +
 ...24-arm-bcm2835-Fix-FIQ-early-ioremap.patch |    73 +
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 ...-for-updating-interrupt-endpoint-int.patch |   104 +
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 ...or-host-controllers-that-don-t-updat.patch |    90 +
 ...35-Set-clock-stretch-timeout-to-35ms.patch |    47 +
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 ...-drm-v3d-HACK-gut-runtime-pm-for-now.patch |   109 +
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 ...-chardev-for-mmap-ing-the-RPiVid-con.patch |   441 +
 ...ce-quirks-for-Freeway-Airmouse-T3-an.patch |    63 +
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 ...t-Workaround-2-for-Pi4-Ethernet-fail.patch |    51 +
 ...ore-event-ring-segment-table-entries.patch |    60 +
 ...155-configs-arm64-bcm2711-Enable-V3D.patch |    28 +
 ...arch-arm-Add-model-string-to-cpuinfo.patch |    36 +
 ...Add-Revision-Serial-Model-to-cpuinfo.patch |    58 +
 ...s-Add-binding-for-the-Sony-IMX219-se.patch |    77 +
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 ....dtbo-overlays-to-be-built-piecemeal.patch |    36 +
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 ...binding-for-the-Infineon-IRS1125-sen.patch |    66 +
 ...driver-for-the-Infineon-IRS1125-dept.patch |  1231 +
 ...-clear-MMU-control-bits-on-exception.patch |    34 +
 ...Suppress-all-but-the-first-MMU-error.patch |    39 +
 ...950-0169-drm-v3d-Plug-dma_fence-leak.patch |    28 +
 ...m-Register-vcsm-cma-as-a-platform-dr.patch |    40 +
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 ...-bcmgenet-The-second-IRQ-is-optional.patch |    24 +
 ...ow-ethernet-LED-mode-to-be-set-via-d.patch |    46 +
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 745 files changed, 227568 insertions(+), 2 deletions(-)
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 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0622-Add-Raspberry-Pi-PoE-HAT-support.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0623-overlays-Add-rpi-poe-plus-overlay.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0625-overlays-Add-ssd1331-spi-support-for-OLED-screen.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0626-Fixes-an-onboard-clock-detection-problem-of-the-PRO-.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0627-bcm2835-Allow-compressed-frames-to-set-sizeimage-438.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0628-media-i2c-imx477-Fix-for-long-exposure-limit-calcula.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0630-drm-vc4-Make-vc4_crtc_get_encoder-public.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0631-ASoC-codec-hdmi-codec-Support-IEC958-encoded-PCM-for.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0632-ASoC-hdmi-codec-Rework-to-support-more-controls.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0633-snd-iec958-split-status-creation-and-fill.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0634-ASoC-hdmi-codec-Add-iec958-controls.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0635-ASoC-hdmi-codec-Add-a-prepare-hook.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0636-drm-vc4-Register-HDMI-codec.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0637-drm-vc4-hdmi-Remove-redundant-variables.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0639-cgroup-Disable-cgroup-memory-by-default.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0640-media-i2c-imx290-Support-60fps-in-2-lane-operation.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0641-media-i2c-imx290-Fix-the-pixel-rate-at-148.5Mpix-s.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0642-media-i2c-imx290-Fix-clock-setup-register-assignment.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0643-drm-vc4-crtc-Add-encoder-to-vc4_crtc_config_pv-proto.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0644-drm-vc4-crtc-Rework-the-encoder-retrieval-code-again.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0645-drm-vc4-crtc-Add-some-logging.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0646-drm-vc4-Leverage-the-load-tracker-on-the-BCM2711.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0647-drm-vc4-Fix-timings-for-interlaced-modes.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0648-drm-vc4-Don-t-create-hvs_load_tracker-on-fkms.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0649-media-rpivid-Fix-H265-aux-ent-reuse-of-the-same-slot.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0650-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0651-overlays-Add-dpi18cpadhi-vc4-kms-dpi-at056tn53v1.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0652-drm-vc4-Fix-pixel-wrap-issue-with-DVP-teardown.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0653-media-i2c-ov9281-Remove-override-of-subdev-name.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0654-drm-vc4-hdmi-Use-a-fixed-rate-for-the-HSM-clock-on-B.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0655-drm-vc4-hdmi-Enable-the-scrambler-on-reconnection.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0656-staging-vc04_services-isp-Set-the-YUV420-YVU420-form.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0657-Documentation-devicetree-Add-documentation-for-imx37.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0658-overlays-Add-overlay-for-imx378-sensor.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0660-overlays-Make-i2c-rtc-and-i2c-rtc-gpio-share-RTCs.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0661-dt-bindings-clk-raspberrypi-Remove-unused-property.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0662-dt-bindings-display-vc4-Add-phandle-to-the-firmware.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0663-firmware-raspberrypi-Add-RPI_FIRMWARE_NOTIFY_DISPLAY.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0664-drm-vc4-Remove-conflicting-framebuffers-before-calli.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0665-drm-vc4-Notify-the-firmware-when-DRM-is-in-charge.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0666-ARM-dts-rpi-Add-the-firmware-node-to-vc4.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0667-drm-vc4-hdmi-Put-the-device-on-error-in-pre_crtc_con.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0668-drm-vc4-hdmi-Split-the-CEC-disable-enable-functions-.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0670-drm-vc4-hdmi-Add-missing-clk_disable_unprepare-on-er.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0671-drm-vc4-hdmi-Warn-if-we-access-the-controller-while-.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0673-vc4-drv-Only-notify-firmware-of-display-done-with-km.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0674-dwc_otg-Update-NetBSD-usb.h-header-licence.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0676-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-hotplug.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0678-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0679-media-bcm2835-unicam-Forward-input-status-from-subde.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0681-drm-Introduce-an-atomic_commit_setup-function.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0682-drm-Document-use-after-free-gotcha-with-private-obje.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0683-drm-vc4-Simplify-a-bit-the-global-atomic_check.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0684-drm-vc4-hdmi-Don-t-poll-for-the-infoframes-status-on.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0685-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0686-drm-Use-the-state-pointer-directly-in-atomic_check.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0687-drm-vc4-Remove-unnecessary-drm_plane_cleanup-wrapper.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0688-drm-vc4-plane-Remove-redundant-assignment.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0689-drm-automatic-legacy-gamma-support.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0690-drm-Pass-the-full-state-to-connectors-atomic-functio.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0691-drm-vc4-replace-idr_init-by-idr_init_base.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0692-drm-vc4-vc4_hdmi_regs-Mark-some-data-sets-as-__maybe.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0693-drm-vc4-remove-unneeded-variable-ret.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0694-overlays-Add-overlay-for-cap1106-capacitive-touch-se.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0695-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0697-ARM-dts-bcm2711-fold-in-the-correct-interrupt.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0698-overlays-Add-overlay-for-Si446x-Transceiver-SPI.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0699-drm-vc4-Fix-timings-for-VEC-modes.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0700-drm-vc4-Refactor-VEC-TV-mode-setting.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0701-drm-vc4-Fix-definition-of-PAL-M-mode.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0702-drm-vc4-Add-support-for-more-analog-TV-standards.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0703-drm-vc4-Allow-setting-the-TV-norm-via-module-paramet.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0704-drm-vc4-Refactor-mode-checking-logic.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0705-drm-vc4-Fix-typo-when-getting-firmware-node.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0706-ARM-dts-bcm2711-Tidy-the-HDMI-I2C-aliases.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0707-media-i2c-imx477-Fix-framerates-for-1332x990-mode.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0708-drm-uapi-Add-USB-connector-type.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0709-drm-Add-GUD-USB-Display-driver.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0710-drm-gud-fix-sizeof-use.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0711-drm-gud-Remove-unneeded-semicolon.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0712-drm-gud-cleanup-coding-style-a-bit.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0713-drm-gud-Free-buffers-on-device-removal.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0714-drm-gud-Use-scatter-gather-USB-bulk-transfer.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0715-drm-gud-Add-Raspberry-Pi-Pico-ID.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0717-drm-vc4-hdmi-Make-sure-the-controller-is-powered-up-.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0718-overlays-Set-CMA-to-512MB-on-Pi-4-for-vc4.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0719-ARM-dts-Correct-CM4-PHY-MDIO-address.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0720-drm-vc4-Increase-the-core-clock-based-on-HVS-load.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0721-drm-vc4-Increase-the-core-clock-to-a-minimum-of-500M.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0722-overlays-Update-and-rename-chipdip-i2s-master-dac.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0724-char-vc_mem-Delete-dead-code.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0725-overlays-Add-Ablic-S35390A-to-i2c-rtc-and-gpio.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0726-dtoverlays-Add-orientation-and-rotation-parameter-to.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0727-media-i2c-imx290-Add-fwnode-properties-controls.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0728-media-i2c-ov9281-Add-fwnode-properties-controls.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0729-media-i2c-ov7251-Add-fwnode-properties-controls.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0730-overlays-Reduce-Pi-4-vc4-CMA-size-to-320MB.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0731-Revert-overlays-Update-display-GPIO-declarations-for.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0732-overlays-Add-midi-uart-2345-overlay.dts.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0734-overlays-Add-TI-BQ32000-RTC-support.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0735-xhci-guard-accesses-to-ep_state-in-xhci_endpoint_res.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0736-ARM-dts-Adapt-to-upstream-changes.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0737-overlays-rpi-poe-plus-Improve-the-cooling-levels.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/950-0738-Makefiles-dt-Always-set-on-ARCH_BCM2835.patch
 create mode 100644 target/linux/bcm27xx/patches-5.10/960-hwrng-iproc-set-quality-to-1000.patch

diff --git a/target/linux/bcm27xx/bcm2708/config-5.10 b/target/linux/bcm27xx/bcm2708/config-5.10
new file mode 100644
index 0000000000..094765abdc
--- /dev/null
+++ b/target/linux/bcm27xx/bcm2708/config-5.10
@@ -0,0 +1,366 @@
+# CONFIG_AIO is not set
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V6=y
+CONFIG_ARCH_MULTI_V6_V7=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_ERRATA_411920=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+CONFIG_ARM_RASPBERRYPI_CPUFREQ=y
+CONFIG_ARM_THUMB=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ARM_UNWIND=y
+CONFIG_AUTO_ZRELADDR=y
+CONFIG_BCM2708_VCMEM=y
+# CONFIG_BCM2711_THERMAL is not set
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_FAST_MEMCPY=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_TIMER=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM_VCIO=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_PM=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BRCMSTB_L2_IRQ=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLK_BCM2711_DVP=y
+CONFIG_CLK_BCM2835=y
+CONFIG_CLK_RASPBERRYPI=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_CPUFREQ_DT_PLATDEV=y
+CONFIG_CPU_32v6=y
+CONFIG_CPU_32v6K=y
+CONFIG_CPU_ABRT_EV6=y
+CONFIG_CPU_CACHE_V6=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_HAS_ASID=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_V6=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V6=y
+CONFIG_CPU_V6K=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_GF128MUL=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_OPS=y
+CONFIG_DMA_REMAP=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_F2FS_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIQ=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_FPE_NWFPE is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FREEZER=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FW_CACHE=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+# CONFIG_GPIO_BCM_VIRT is not set
+# CONFIG_GPIO_FSM is not set
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HW_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_BCM2835=y
+CONFIG_HZ_FIXED=0
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_BRCMSTB is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KERNEL_GZIP=y
+# CONFIG_KERNEL_XZ is not set
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_ACTPWR=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LLD_VERSION=0
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_DEVRES=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MTD is not set
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NVMEM=y
+# CONFIG_NVMEM_RMEM is not set
+CONFIG_OABI_COMPAT=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESOLVE=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_OPP=y
+CONFIG_PM_SLEEP=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_RESET_CONTROLLER=y
+# CONFIG_RESET_RASPBERRYPI is not set
+CONFIG_RESET_SIMPLE=y
+# CONFIG_RPIVID_MEM is not set
+# CONFIG_RPI_POE_POWER is not set
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMSC_PHY=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWPHY=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TINY_SRCU=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_UEVENT_HELPER_PATH=""
+# CONFIG_UID16 is not set
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_UNWINDER_ARM=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+CONFIG_USB_USBNET=y
+CONFIG_USE_OF=y
+CONFIG_VFP=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ZBOOT_ROM_TEXT=0x0
diff --git a/target/linux/bcm27xx/bcm2709/config-5.10 b/target/linux/bcm27xx/bcm2709/config-5.10
new file mode 100644
index 0000000000..a04ee1ddd9
--- /dev/null
+++ b/target/linux/bcm27xx/bcm2709/config-5.10
@@ -0,0 +1,464 @@
+# CONFIG_AIO is not set
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_ARCH_32BIT_OFF_T=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM2835=y
+# CONFIG_ARCH_BCM_HR2 is not set
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MULTIPLATFORM=y
+CONFIG_ARCH_MULTI_V6_V7=y
+CONFIG_ARCH_MULTI_V7=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARM=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_CPU_SUSPEND=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_HAS_SG_CHAIN=y
+CONFIG_ARM_L1_CACHE_SHIFT=6
+CONFIG_ARM_L1_CACHE_SHIFT_6=y
+CONFIG_ARM_LPAE=y
+CONFIG_ARM_PATCH_IDIV=y
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+CONFIG_ARM_RASPBERRYPI_CPUFREQ=y
+CONFIG_ARM_THUMB=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ARM_UNWIND=y
+CONFIG_ARM_VIRT_EXT=y
+CONFIG_ASSOCIATIVE_ARRAY=y
+CONFIG_AUTO_ZRELADDR=y
+CONFIG_BCM2708_VCMEM=y
+CONFIG_BCM2711_THERMAL=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_TIMER=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM7XXX_PHY=y
+CONFIG_BCMGENET=y
+CONFIG_BCM_NET_PHYLIB=y
+CONFIG_BCM_VCIO=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BLK_PM=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BOUNCE=y
+CONFIG_BRCMSTB_L2_IRQ=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_BROADCOM_PHY=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLK_BCM2711_DVP=y
+CONFIG_CLK_BCM2835=y
+CONFIG_CLK_RASPBERRYPI=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_CPUFREQ_DT_PLATDEV=y
+CONFIG_CPU_32v6K=y
+CONFIG_CPU_32v7=y
+CONFIG_CPU_ABRT_EV7=y
+CONFIG_CPU_CACHE_V7=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_HAS_ASID=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_V7=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_RMAP=y
+CONFIG_CPU_SPECTRE=y
+CONFIG_CPU_THUMB_CAPABLE=y
+CONFIG_CPU_TLB_V7=y
+CONFIG_CPU_V7=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_CTS=y
+CONFIG_CRYPTO_DRBG=y
+CONFIG_CRYPTO_DRBG_HMAC=y
+CONFIG_CRYPTO_DRBG_MENU=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_GF128MUL=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_JITTERENTROPY=y
+CONFIG_CRYPTO_LIB_SHA256=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_RNG_DEFAULT=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_SHA512=y
+CONFIG_CRYPTO_XTS=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
+CONFIG_DIMLIB=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_OPS=y
+CONFIG_DMA_REMAP=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXTCON=y
+CONFIG_F2FS_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIQ=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+# CONFIG_FPE_FASTFPE is not set
+# CONFIG_FPE_NWFPE is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FREEZER=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION_ALGS=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FW_CACHE=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_MSI_IRQ=y
+CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GENERIC_VDSO_32=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_BCM_VIRT=y
+# CONFIG_GPIO_FSM is not set
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDEN_BRANCH_PREDICTOR=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_SMP=y
+CONFIG_HIGHMEM=y
+CONFIG_HIGHPTE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_HW_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_BCM2835=y
+CONFIG_HW_RANDOM_IPROC_RNG200=y
+CONFIG_HZ_FIXED=0
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_BRCMSTB is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KEYS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_ACTPWR=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LLD_VERSION=0
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BCM_UNIMAC=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_DEVRES=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MICROCHIP_PHY=y
+CONFIG_MIGHT_HAVE_CACHE_L2X0=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_IO_ACCESSORS=y
+CONFIG_MMC_SDHCI_IPROC=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_REL=y
+# CONFIG_MTD is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEON=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=4
+CONFIG_NVMEM=y
+# CONFIG_NVMEM_RMEM is not set
+CONFIG_OABI_COMPAT=y
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESOLVE=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PADATA=y
+CONFIG_PAGE_OFFSET=0xC0000000
+CONFIG_PCI=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCIE_BRCMSTB=y
+CONFIG_PCIE_PME=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_MSI_IRQ_DOMAIN=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_OPP=y
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_RAS=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RESET_RASPBERRYPI=y
+CONFIG_RESET_SIMPLE=y
+CONFIG_RFS_ACCEL=y
+# CONFIG_RPIVID_MEM is not set
+# CONFIG_RPI_POE_POWER is not set
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SMP_ON_UP=y
+CONFIG_SMSC_PHY=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SWP_EMULATE=y
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UEVENT_HELPER_PATH=""
+# CONFIG_UID16 is not set
+CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_UNWINDER_ARM=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+# CONFIG_USB_ETH is not set
+CONFIG_USB_GADGET=y
+CONFIG_USB_LAN78XX=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_PCI=y
+CONFIG_USB_PHY=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+# CONFIG_USB_UHCI_HCD is not set
+CONFIG_USB_USBNET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PCI=y
+CONFIG_USB_XHCI_PLATFORM=y
+CONFIG_USE_OF=y
+CONFIG_VFP=y
+CONFIG_VFPv3=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZBOOT_ROM_BSS=0
+CONFIG_ZBOOT_ROM_TEXT=0
diff --git a/target/linux/bcm27xx/bcm2710/config-5.10 b/target/linux/bcm27xx/bcm2710/config-5.10
new file mode 100644
index 0000000000..d9598a9464
--- /dev/null
+++ b/target/linux/bcm27xx/bcm2710/config-5.10
@@ -0,0 +1,448 @@
+CONFIG_64BIT=y
+# CONFIG_AIO is not set
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_ARCH_MMAP_RND_BITS_MAX=24
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
+CONFIG_ARCH_PROC_KCORE_TEXT=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_STACKWALK=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARM64=y
+CONFIG_ARM64_4K_PAGES=y
+CONFIG_ARM64_CNP=y
+CONFIG_ARM64_ERRATUM_1165522=y
+CONFIG_ARM64_ERRATUM_1286807=y
+CONFIG_ARM64_ERRATUM_819472=y
+CONFIG_ARM64_ERRATUM_824069=y
+CONFIG_ARM64_ERRATUM_826319=y
+CONFIG_ARM64_ERRATUM_827319=y
+CONFIG_ARM64_ERRATUM_832075=y
+CONFIG_ARM64_ERRATUM_843419=y
+CONFIG_ARM64_HW_AFDBM=y
+CONFIG_ARM64_MODULE_PLTS=y
+CONFIG_ARM64_PAGE_SHIFT=12
+CONFIG_ARM64_PAN=y
+CONFIG_ARM64_PA_BITS=48
+CONFIG_ARM64_PA_BITS_48=y
+CONFIG_ARM64_PTR_AUTH=y
+CONFIG_ARM64_SVE=y
+CONFIG_ARM64_TAGGED_ADDR_ABI=y
+CONFIG_ARM64_UAO=y
+CONFIG_ARM64_VA_BITS=39
+CONFIG_ARM64_VA_BITS_39=y
+CONFIG_ARM64_VHE=y
+CONFIG_ARM64_WORKAROUND_CLEAN_CACHE=y
+CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y
+CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_GIC_V2M=y
+CONFIG_ARM_GIC_V3=y
+CONFIG_ARM_GIC_V3_ITS=y
+CONFIG_ARM_GIC_V3_ITS_PCI=y
+CONFIG_ARM_PSCI_FW=y
+CONFIG_ARM_RASPBERRYPI_CPUFREQ=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ASSOCIATIVE_ARRAY=y
+CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
+CONFIG_BCM2708_VCMEM=y
+# CONFIG_BCM2711_THERMAL is not set
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+CONFIG_BCM2835_THERMAL=y
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM_VCIO=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BLK_PM=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BOUNCE=y
+CONFIG_BRCMSTB_L2_IRQ=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_CAVIUM_ERRATUM_22375=y
+CONFIG_CAVIUM_ERRATUM_23154=y
+CONFIG_CAVIUM_ERRATUM_27456=y
+CONFIG_CAVIUM_TX2_ERRATUM_219=y
+CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLK_BCM2711_DVP=y
+CONFIG_CLK_BCM2835=y
+CONFIG_CLK_RASPBERRYPI=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_XGENE=y
+# CONFIG_COMPAT_32BIT_TIME is not set
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_CPUFREQ_DT_PLATDEV=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_RMAP=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_CTS=y
+CONFIG_CRYPTO_DRBG=y
+CONFIG_CRYPTO_DRBG_HMAC=y
+CONFIG_CRYPTO_DRBG_MENU=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_GF128MUL=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_JITTERENTROPY=y
+CONFIG_CRYPTO_LIB_SHA256=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_RNG_DEFAULT=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_SHA512=y
+CONFIG_CRYPTO_XTS=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_DIRECT_REMAP=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_REMAP=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXTCON=y
+CONFIG_F2FS_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FRAME_POINTER=y
+CONFIG_FREEZER=y
+CONFIG_FSL_ERRATUM_A008585=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION_ALGS=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FUJITSU_ERRATUM_010001=y
+CONFIG_FW_CACHE=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_CPU_VULNERABILITIES=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_MSI_IRQ=y
+CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_BCM_VIRT=y
+# CONFIG_GPIO_FSM is not set
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HOLES_IN_ZONE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_HW_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_BCM2835=y
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_BRCMSTB is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KEYS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_ACTPWR=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LLD_VERSION=0
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_DEVRES=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MICROCHIP_PHY=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_IO_ACCESSORS=y
+CONFIG_MMC_SDHCI_IPROC=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MTD is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=4
+CONFIG_NVMEM=y
+# CONFIG_NVMEM_RMEM is not set
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESOLVE=y
+CONFIG_PADATA=y
+CONFIG_PARTITION_PERCPU=y
+CONFIG_PCI=y
+# CONFIG_PCIE_BRCMSTB is not set
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_MSI_IRQ_DOMAIN=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_OPP=y
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RESET_CONTROLLER=y
+# CONFIG_RESET_RASPBERRYPI is not set
+CONFIG_RESET_SIMPLE=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
+# CONFIG_RPIVID_MEM is not set
+# CONFIG_RPI_POE_POWER is not set
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SMSC_PHY=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
+CONFIG_THREAD_INFO_IN_TASK=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UEVENT_HELPER_PATH=""
+CONFIG_UNMAP_KERNEL_AT_EL0=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+CONFIG_USB_LAN78XX=y
+CONFIG_USB_NET_DRIVERS=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+CONFIG_USB_USBNET=y
+CONFIG_VMAP_STACK=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZONE_DMA32=y
diff --git a/target/linux/bcm27xx/bcm2711/config-5.10 b/target/linux/bcm27xx/bcm2711/config-5.10
new file mode 100644
index 0000000000..4fd9dc5ddc
--- /dev/null
+++ b/target/linux/bcm27xx/bcm2711/config-5.10
@@ -0,0 +1,463 @@
+CONFIG_64BIT=y
+# CONFIG_AIO is not set
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_ARCH_MMAP_RND_BITS_MAX=24
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
+CONFIG_ARCH_PROC_KCORE_TEXT=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_STACKWALK=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARM64=y
+CONFIG_ARM64_4K_PAGES=y
+CONFIG_ARM64_CNP=y
+CONFIG_ARM64_ERRATUM_1165522=y
+CONFIG_ARM64_ERRATUM_1286807=y
+CONFIG_ARM64_ERRATUM_819472=y
+CONFIG_ARM64_ERRATUM_824069=y
+CONFIG_ARM64_ERRATUM_826319=y
+CONFIG_ARM64_ERRATUM_827319=y
+CONFIG_ARM64_ERRATUM_832075=y
+CONFIG_ARM64_ERRATUM_843419=y
+CONFIG_ARM64_HW_AFDBM=y
+CONFIG_ARM64_MODULE_PLTS=y
+CONFIG_ARM64_PAGE_SHIFT=12
+CONFIG_ARM64_PAN=y
+CONFIG_ARM64_PA_BITS=48
+CONFIG_ARM64_PA_BITS_48=y
+CONFIG_ARM64_PTR_AUTH=y
+CONFIG_ARM64_SVE=y
+CONFIG_ARM64_TAGGED_ADDR_ABI=y
+CONFIG_ARM64_UAO=y
+CONFIG_ARM64_VA_BITS=39
+CONFIG_ARM64_VA_BITS_39=y
+CONFIG_ARM64_VHE=y
+CONFIG_ARM64_WORKAROUND_CLEAN_CACHE=y
+CONFIG_ARM64_WORKAROUND_REPEAT_TLBI=y
+CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_GIC_V2M=y
+CONFIG_ARM_GIC_V3=y
+CONFIG_ARM_GIC_V3_ITS=y
+CONFIG_ARM_GIC_V3_ITS_PCI=y
+CONFIG_ARM_PSCI_FW=y
+CONFIG_ARM_RASPBERRYPI_CPUFREQ=y
+CONFIG_ARM_TIMER_SP804=y
+CONFIG_ASSOCIATIVE_ARRAY=y
+CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
+CONFIG_BCM2708_VCMEM=y
+CONFIG_BCM2711_THERMAL=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+CONFIG_BCM2835_MBOX=y
+CONFIG_BCM2835_POWER=y
+# CONFIG_BCM2835_SMI is not set
+# CONFIG_BCM2835_THERMAL is not set
+CONFIG_BCM2835_VCHIQ=y
+# CONFIG_BCM2835_VCHIQ_MMAL is not set
+CONFIG_BCM2835_WDT=y
+CONFIG_BCM7XXX_PHY=y
+CONFIG_BCMGENET=y
+CONFIG_BCM_NET_PHYLIB=y
+CONFIG_BCM_VCIO=y
+# CONFIG_BCM_VC_SM_CMA is not set
+CONFIG_BCM_VIDEOCORE=y
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_BLK_PM=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BOUNCE=y
+CONFIG_BRCMSTB_L2_IRQ=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_BROADCOM_PHY=y
+CONFIG_CAVIUM_ERRATUM_22375=y
+CONFIG_CAVIUM_ERRATUM_23154=y
+CONFIG_CAVIUM_ERRATUM_27456=y
+CONFIG_CAVIUM_TX2_ERRATUM_219=y
+CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CLK_BCM2711_DVP=y
+CONFIG_CLK_BCM2835=y
+CONFIG_CLK_RASPBERRYPI=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMA=y
+CONFIG_CMA_ALIGNMENT=8
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+CONFIG_CMA_SIZE_MBYTES=5
+# CONFIG_CMA_SIZE_SEL_MAX is not set
+CONFIG_CMA_SIZE_SEL_MBYTES=y
+# CONFIG_CMA_SIZE_SEL_MIN is not set
+# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_XGENE=y
+# CONFIG_COMPAT_32BIT_TIME is not set
+CONFIG_CONFIGFS_FS=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_CPUFREQ_DT_PLATDEV=y
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CPU_FREQ_GOV_ATTR_SET=y
+CONFIG_CPU_FREQ_GOV_COMMON=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_RMAP=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_CRC32=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_CTS=y
+CONFIG_CRYPTO_DRBG=y
+CONFIG_CRYPTO_DRBG_HMAC=y
+CONFIG_CRYPTO_DRBG_MENU=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_GF128MUL=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_JITTERENTROPY=y
+CONFIG_CRYPTO_LIB_SHA256=y
+CONFIG_CRYPTO_NULL2=y
+CONFIG_CRYPTO_RNG=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_RNG_DEFAULT=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_SHA512=y
+CONFIG_CRYPTO_XTS=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_BUGVERBOSE=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DIMLIB=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_CMA=y
+CONFIG_DMA_DIRECT_REMAP=y
+CONFIG_DMA_ENGINE=y
+CONFIG_DMA_OF=y
+CONFIG_DMA_REMAP=y
+CONFIG_DMA_SHARED_BUFFER=y
+CONFIG_DMA_VIRTUAL_CHANNELS=y
+CONFIG_DNOTIFY=y
+CONFIG_DTC=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXTCON=y
+CONFIG_F2FS_FS=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CMDLINE=y
+# CONFIG_FB_RPISENSE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FIXED_PHY=y
+CONFIG_FIX_EARLYCON_MEM=y
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_SUPPORT=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FRAME_POINTER=y
+CONFIG_FREEZER=y
+CONFIG_FSL_ERRATUM_A008585=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FS_ENCRYPTION_ALGS=y
+CONFIG_FS_IOMAP=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_FUJITSU_ERRATUM_010001=y
+CONFIG_FW_CACHE=y
+CONFIG_FW_LOADER_PAGED_BUF=y
+CONFIG_GENERIC_ALLOCATOR=y
+CONFIG_GENERIC_ARCH_TOPOLOGY=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_CPU_VULNERABILITIES=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_EARLY_IOREMAP=y
+CONFIG_GENERIC_GETTIMEOFDAY=y
+CONFIG_GENERIC_IDLE_POLL_SETUP=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_IRQ_MIGRATION=y
+CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_MSI_IRQ=y
+CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GENERIC_PINCONF=y
+CONFIG_GENERIC_PINCTRL_GROUPS=y
+CONFIG_GENERIC_PINMUX_FUNCTIONS=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIOLIB_IRQCHIP=y
+CONFIG_GPIO_BCM_VIRT=y
+# CONFIG_GPIO_FSM is not set
+CONFIG_GPIO_RASPBERRYPI_EXP=y
+CONFIG_HANDLE_DOMAIN_IRQ=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HOLES_IN_ZONE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_HW_CONSOLE=y
+CONFIG_HW_RANDOM=y
+# CONFIG_HW_RANDOM_BCM2835 is not set
+CONFIG_HW_RANDOM_IPROC_RNG200=y
+CONFIG_I2C=y
+# CONFIG_I2C_BCM2708 is not set
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_BRCMSTB is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+CONFIG_INPUT=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_DOMAIN_HIERARCHY=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD2=y
+CONFIG_KEYS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGER_ACTPWR=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LIBFDT=y
+CONFIG_LLD_VERSION=0
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+CONFIG_LOCK_SPIN_ON_OWNER=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+# CONFIG_MAILBOX_TEST is not set
+CONFIG_MAX_RAW_DEVS=256
+CONFIG_MDIO_BCM_UNIMAC=y
+CONFIG_MDIO_BUS=y
+CONFIG_MDIO_DEVICE=y
+CONFIG_MDIO_DEVRES=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_MEMORY_ISOLATION=y
+CONFIG_MFD_CORE=y
+# CONFIG_MFD_RPISENSE_CORE is not set
+CONFIG_MFD_SYSCON=y
+CONFIG_MIGRATION=y
+CONFIG_MMC=y
+CONFIG_MMC_BCM2835=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_IO_ACCESSORS=y
+CONFIG_MMC_SDHCI_IPROC=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MTD is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=4
+CONFIG_NVMEM=y
+# CONFIG_NVMEM_RMEM is not set
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_OF_DYNAMIC=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_NET=y
+CONFIG_OF_OVERLAY=y
+CONFIG_OF_RESOLVE=y
+CONFIG_PADATA=y
+CONFIG_PARTITION_PERCPU=y
+CONFIG_PCI=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCIE_BRCMSTB=y
+CONFIG_PCIE_PME=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_MSI_IRQ_DOMAIN=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_BCM2835=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
+CONFIG_PM_OPP=y
+CONFIG_PM_SLEEP=y
+CONFIG_PM_SLEEP_SMP=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PRINTK_TIME=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+CONFIG_RAS=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_RATIONAL=y
+# CONFIG_RAVE_SP_CORE is not set
+CONFIG_RAW_DRIVER=y
+CONFIG_RCU_NEED_SEGCBLIST=y
+CONFIG_RCU_STALL_COMMON=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_MMIO=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_RESET_RASPBERRYPI=y
+CONFIG_RESET_SIMPLE=y
+CONFIG_RFS_ACCEL=y
+CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
+# CONFIG_RPIVID_MEM is not set
+# CONFIG_RPI_POE_POWER is not set
+CONFIG_RPS=y
+CONFIG_RWSEM_SPIN_ON_OWNER=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_SERIAL_8250_BCM2835AUX=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
+# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
+CONFIG_SERIAL_MCTRL_GPIO=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SG_POOL=y
+CONFIG_SMP=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+CONFIG_SWIOTLB=y
+CONFIG_SWPHY=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+# CONFIG_TEXTSEARCH is not set
+CONFIG_THERMAL=y
+CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
+CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
+CONFIG_THERMAL_GOV_STEP_WISE=y
+CONFIG_THERMAL_OF=y
+CONFIG_THERMAL_WRITABLE_TRIPS=y
+CONFIG_THREAD_INFO_IN_TASK=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TIMER_OF=y
+CONFIG_TIMER_PROBE=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TREE_RCU=y
+CONFIG_TREE_SRCU=y
+CONFIG_UEVENT_HELPER_PATH=""
+CONFIG_UNMAP_KERNEL_AT_EL0=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_COMMON=y
+CONFIG_USB_DWCOTG=y
+# CONFIG_USB_ETH is not set
+CONFIG_USB_GADGET=y
+CONFIG_USB_PCI=y
+CONFIG_USB_PHY=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_UAS=y
+# CONFIG_USB_UHCI_HCD is not set
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PCI=y
+CONFIG_USB_XHCI_PLATFORM=y
+CONFIG_VMAP_STACK=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_WATCHDOG_CORE=y
+CONFIG_XPS=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_ZONE_DMA32=y
diff --git a/target/linux/bcm27xx/modules/sound.mk b/target/linux/bcm27xx/modules/sound.mk
index dab31d8132..5073e5ff50 100644
--- a/target/linux/bcm27xx/modules/sound.mk
+++ b/target/linux/bcm27xx/modules/sound.mk
@@ -365,6 +365,26 @@ endef
 $(eval $(call KernelPackage,sound-soc-audioinjector-pi-soundcard))
 
 
+define KernelPackage/sound-soc-chipdip-dac
+  TITLE:=Support for ChipDip DAC
+  KCONFIG:= \
+    CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC
+  FILES:= \
+    $(LINUX_DIR)/sound/soc/bcm/snd-soc-chipdip-dac.ko
+  AUTOLOAD:=$(call AutoLoad,68,snd-soc-chipdip-dac)
+  DEPENDS:= \
+    kmod-sound-soc-bcm2835-i2s \
+    @LINUX_5_10
+  $(call AddDepends/sound)
+endef
+
+define KernelPackage/sound-soc-chipdip-dac/description
+  This package contains support for ChipDip DAC
+endef
+
+$(eval $(call KernelPackage,sound-soc-chipdip-dac))
+
+
 define KernelPackage/sound-soc-digidac1-soundcard
   TITLE:=Support for RRA DigiDAC1
   KCONFIG:= \
diff --git a/target/linux/bcm27xx/modules/video.mk b/target/linux/bcm27xx/modules/video.mk
index 2eff4a45d5..f480831caf 100644
--- a/target/linux/bcm27xx/modules/video.mk
+++ b/target/linux/bcm27xx/modules/video.mk
@@ -6,7 +6,9 @@ define KernelPackage/camera-bcm2835
   TITLE:=BCM2835 Camera
   KCONFIG:= \
     CONFIG_VIDEO_BCM2835 \
-    CONFIG_VIDEO_BCM2835_MMAL
+    CONFIG_VIDEO_BCM2835_MMAL \
+    CONFIG_VIDEO_BCM2835_UNICAM=n \
+    CONFIG_VIDEO_ISP_BCM2835=n
   FILES:= \
     $(LINUX_DIR)/drivers/staging/vc04_services/bcm2835-camera/bcm2835-v4l2.ko
   AUTOLOAD:=$(call AutoLoad,65,bcm2835-v4l2)
@@ -31,12 +33,14 @@ define KernelPackage/drm-vc4
   KCONFIG:= \
     CONFIG_DRM_VC4 \
     CONFIG_DRM_VC4_HDMI_CEC=y \
+    CONFIG_DRM_GUD=n \
     CONFIG_DRM_V3D=n \
     CONFIG_DRM_TVE200=n
   FILES:= \
     $(LINUX_DIR)/drivers/gpu/drm/vc4/vc4.ko \
     $(LINUX_DIR)/drivers/gpu/drm/drm_kms_helper.ko \
-    $(LINUX_DIR)/drivers/media/cec/cec.ko
+    $(LINUX_DIR)/drivers/media/cec/cec.ko@lt5.10 \
+    $(LINUX_DIR)/drivers/media/cec/core/cec.ko@ge5.10
   AUTOLOAD:=$(call AutoProbe,vc4)
 endef
 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch b/target/linux/bcm27xx/patches-5.10/950-0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch
new file mode 100644
index 0000000000..87c90f8c16
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch
@@ -0,0 +1,99 @@
+From c966ee565b122d840d7aac4c07c53b0d679d2d33 Mon Sep 17 00:00:00 2001
+From: Dan Pasanen <dan.pasanen@gmail.com>
+Date: Thu, 21 Sep 2017 09:55:42 -0500
+Subject: [PATCH] arm: partially revert
+ 702b94bff3c50542a6e4ab9a4f4cef093262fe65
+
+* Re-expose some dmi APIs for use in VCSM
+---
+ arch/arm/include/asm/cacheflush.h | 21 +++++++++++++++++++++
+ arch/arm/include/asm/glue-cache.h |  2 ++
+ arch/arm/mm/proc-macros.S         |  2 ++
+ arch/arm/mm/proc-syms.c           |  3 +++
+ 4 files changed, 28 insertions(+)
+
+--- a/arch/arm/include/asm/cacheflush.h
++++ b/arch/arm/include/asm/cacheflush.h
+@@ -91,6 +91,21 @@
+  *	DMA Cache Coherency
+  *	===================
+  *
++ *	dma_inv_range(start, end)
++ *
++ *		Invalidate (discard) the specified virtual address range.
++ *		May not write back any entries.  If 'start' or 'end'
++ *		are not cache line aligned, those lines must be written
++ *		back.
++ *		- start  - virtual start address
++ *		- end    - virtual end address
++ *
++ *	dma_clean_range(start, end)
++ *
++ *		Clean (write back) the specified virtual address range.
++ *		- start  - virtual start address
++ *		- end    - virtual end address
++ *
+  *	dma_flush_range(start, end)
+  *
+  *		Clean and invalidate the specified virtual address range.
+@@ -112,6 +127,8 @@ struct cpu_cache_fns {
+ 	void (*dma_map_area)(const void *, size_t, int);
+ 	void (*dma_unmap_area)(const void *, size_t, int);
+ 
++	void (*dma_inv_range)(const void *, const void *);
++	void (*dma_clean_range)(const void *, const void *);
+ 	void (*dma_flush_range)(const void *, const void *);
+ } __no_randomize_layout;
+ 
+@@ -137,6 +154,8 @@ extern struct cpu_cache_fns cpu_cache;
+  * is visible to DMA, or data written by DMA to system memory is
+  * visible to the CPU.
+  */
++#define dmac_inv_range			cpu_cache.dma_inv_range
++#define dmac_clean_range		cpu_cache.dma_clean_range
+ #define dmac_flush_range		cpu_cache.dma_flush_range
+ 
+ #else
+@@ -156,6 +175,8 @@ extern void __cpuc_flush_dcache_area(voi
+  * is visible to DMA, or data written by DMA to system memory is
+  * visible to the CPU.
+  */
++extern void dmac_inv_range(const void *, const void *);
++extern void dmac_clean_range(const void *, const void *);
+ extern void dmac_flush_range(const void *, const void *);
+ 
+ #endif
+--- a/arch/arm/include/asm/glue-cache.h
++++ b/arch/arm/include/asm/glue-cache.h
+@@ -155,6 +155,8 @@ static inline void nop_dma_unmap_area(co
+ #define __cpuc_coherent_user_range	__glue(_CACHE,_coherent_user_range)
+ #define __cpuc_flush_dcache_area	__glue(_CACHE,_flush_kern_dcache_area)
+ 
++#define dmac_inv_range			__glue(_CACHE,_dma_inv_range)
++#define dmac_clean_range		__glue(_CACHE,_dma_clean_range)
+ #define dmac_flush_range		__glue(_CACHE,_dma_flush_range)
+ #endif
+ 
+--- a/arch/arm/mm/proc-macros.S
++++ b/arch/arm/mm/proc-macros.S
+@@ -334,6 +334,8 @@ ENTRY(\name\()_cache_fns)
+ 	.long	\name\()_flush_kern_dcache_area
+ 	.long	\name\()_dma_map_area
+ 	.long	\name\()_dma_unmap_area
++	.long	\name\()_dma_inv_range
++	.long	\name\()_dma_clean_range
+ 	.long	\name\()_dma_flush_range
+ 	.size	\name\()_cache_fns, . - \name\()_cache_fns
+ .endm
+--- a/arch/arm/mm/proc-syms.c
++++ b/arch/arm/mm/proc-syms.c
+@@ -27,6 +27,9 @@ EXPORT_SYMBOL(__cpuc_flush_user_all);
+ EXPORT_SYMBOL(__cpuc_flush_user_range);
+ EXPORT_SYMBOL(__cpuc_coherent_kern_range);
+ EXPORT_SYMBOL(__cpuc_flush_dcache_area);
++EXPORT_SYMBOL(dmac_inv_range);
++EXPORT_SYMBOL(dmac_clean_range);
++EXPORT_SYMBOL(dmac_flush_range);
+ #else
+ EXPORT_SYMBOL(cpu_cache);
+ #endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch b/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch
new file mode 100644
index 0000000000..3e26f97313
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0002-Revert-rtc-pcf8523-properly-handle-oscillator-stop-b.patch
@@ -0,0 +1,56 @@
+From f4888774b6bf2f68fa2b389690eee07d7e8efdb9 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 29 Oct 2018 14:45:45 +0000
+Subject: [PATCH] Revert "rtc: pcf8523: properly handle oscillator stop
+ bit"
+
+This reverts commit ede44c908d44b166a5b6bd7caacd105c2ff5a70f.
+
+See: https://github.com/raspberrypi/firmware/issues/1065
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/rtc/rtc-pcf8523.c | 25 ++++++++++++++++++++++---
+ 1 file changed, 22 insertions(+), 3 deletions(-)
+
+--- a/drivers/rtc/rtc-pcf8523.c
++++ b/drivers/rtc/rtc-pcf8523.c
+@@ -205,8 +205,28 @@ static int pcf8523_rtc_read_time(struct
+ 	if (err < 0)
+ 		return err;
+ 
+-	if (regs[0] & REG_SECONDS_OS)
+-		return -EINVAL;
++	if (regs[0] & REG_SECONDS_OS) {
++		/*
++		 * If the oscillator was stopped, try to clear the flag. Upon
++		 * power-up the flag is always set, but if we cannot clear it
++		 * the oscillator isn't running properly for some reason. The
++		 * sensible thing therefore is to return an error, signalling
++		 * that the clock cannot be assumed to be correct.
++		 */
++
++		regs[0] &= ~REG_SECONDS_OS;
++
++		err = pcf8523_write(client, REG_SECONDS, regs[0]);
++		if (err < 0)
++			return err;
++
++		err = pcf8523_read(client, REG_SECONDS, &regs[0]);
++		if (err < 0)
++			return err;
++
++		if (regs[0] & REG_SECONDS_OS)
++			return -EAGAIN;
++	}
+ 
+ 	tm->tm_sec = bcd2bin(regs[0] & 0x7f);
+ 	tm->tm_min = bcd2bin(regs[1] & 0x7f);
+@@ -242,7 +262,6 @@ static int pcf8523_rtc_set_time(struct d
+ 		return err;
+ 
+ 	regs[0] = REG_SECONDS;
+-	/* This will purposely overwrite REG_SECONDS_OS */
+ 	regs[1] = bin2bcd(tm->tm_sec);
+ 	regs[2] = bin2bcd(tm->tm_min);
+ 	regs[3] = bin2bcd(tm->tm_hour);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0003-Revert-staging-bcm2835-audio-Drop-DT-dependency.patch b/target/linux/bcm27xx/patches-5.10/950-0003-Revert-staging-bcm2835-audio-Drop-DT-dependency.patch
new file mode 100644
index 0000000000..97b7ee0d9c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0003-Revert-staging-bcm2835-audio-Drop-DT-dependency.patch
@@ -0,0 +1,96 @@
+From 2aa4bd3751f6792bf00d59e4d9cd8a5550872cdb Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Fri, 15 Mar 2019 21:11:10 +0000
+Subject: [PATCH] Revert "staging: bcm2835-audio: Drop DT dependency"
+
+This reverts commit b7491a9fca2dc2535b9dc922550a37c5baae9d3d.
+---
+ .../vc04_services/bcm2835-audio/bcm2835.c     | 31 +++++++++++++------
+ 1 file changed, 22 insertions(+), 9 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -6,13 +6,13 @@
+ #include <linux/init.h>
+ #include <linux/slab.h>
+ #include <linux/module.h>
++#include <linux/of.h>
+ 
+ #include "bcm2835.h"
+ 
+ static bool enable_hdmi;
+ static bool enable_headphones;
+ static bool enable_compat_alsa = true;
+-static int num_channels = MAX_SUBSTREAMS;
+ 
+ module_param(enable_hdmi, bool, 0444);
+ MODULE_PARM_DESC(enable_hdmi, "Enables HDMI virtual audio device");
+@@ -21,8 +21,6 @@ MODULE_PARM_DESC(enable_headphones, "Ena
+ module_param(enable_compat_alsa, bool, 0444);
+ MODULE_PARM_DESC(enable_compat_alsa,
+ 		 "Enables ALSA compatibility virtual audio device");
+-module_param(num_channels, int, 0644);
+-MODULE_PARM_DESC(num_channels, "Number of audio channels (default: 8)");
+ 
+ static void bcm2835_devm_free_vchi_ctx(struct device *dev, void *res)
+ {
+@@ -296,19 +294,28 @@ static int snd_add_child_devices(struct
+ static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
++	u32 numchans;
+ 	int err;
+ 
+-	if (num_channels <= 0 || num_channels > MAX_SUBSTREAMS) {
+-		num_channels = MAX_SUBSTREAMS;
+-		dev_warn(dev, "Illegal num_channels value, will use %u\n",
+-			 num_channels);
++	err = of_property_read_u32(dev->of_node, "brcm,pwm-channels",
++				   &numchans);
++	if (err) {
++		dev_err(dev, "Failed to get DT property 'brcm,pwm-channels'");
++		return err;
++	}
++
++	if (numchans == 0 || numchans > MAX_SUBSTREAMS) {
++		numchans = MAX_SUBSTREAMS;
++		dev_warn(dev,
++			 "Illegal 'brcm,pwm-channels' value, will use %u\n",
++			 numchans);
+ 	}
+ 
+ 	err = bcm2835_devm_add_vchi_ctx(dev);
+ 	if (err)
+ 		return err;
+ 
+-	err = snd_add_child_devices(dev, num_channels);
++	err = snd_add_child_devices(dev, numchans);
+ 	if (err)
+ 		return err;
+ 
+@@ -330,6 +337,12 @@ static int snd_bcm2835_alsa_resume(struc
+ 
+ #endif
+ 
++static const struct of_device_id snd_bcm2835_of_match_table[] = {
++	{ .compatible = "brcm,bcm2835-audio",},
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_bcm2835_of_match_table);
++
+ static struct platform_driver bcm2835_alsa_driver = {
+ 	.probe = snd_bcm2835_alsa_probe,
+ #ifdef CONFIG_PM
+@@ -338,6 +351,7 @@ static struct platform_driver bcm2835_al
+ #endif
+ 	.driver = {
+ 		.name = "bcm2835_audio",
++		.of_match_table = snd_bcm2835_of_match_table,
+ 	},
+ };
+ module_platform_driver(bcm2835_alsa_driver);
+@@ -345,4 +359,3 @@ module_platform_driver(bcm2835_alsa_driv
+ MODULE_AUTHOR("Dom Cobley");
+ MODULE_DESCRIPTION("Alsa driver for BCM2835 chip");
+ MODULE_LICENSE("GPL");
+-MODULE_ALIAS("platform:bcm2835_audio");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0004-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch b/target/linux/bcm27xx/patches-5.10/950-0004-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch
new file mode 100644
index 0000000000..012ff54aa3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0004-Revert-spi-spidev-Fix-CS-polarity-if-GPIO-descriptor.patch
@@ -0,0 +1,32 @@
+From 086a38a1e0eea3b7cbb207384b92d5dc82c62454 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 20 Apr 2020 13:41:10 +0100
+Subject: [PATCH] Revert "spi: spidev: Fix CS polarity if GPIO
+ descriptors are used"
+
+This reverts commit 83b2a8fe43bda0c11981ad6afa5dd0104d78be28.
+---
+ drivers/spi/spidev.c | 5 -----
+ 1 file changed, 5 deletions(-)
+
+--- a/drivers/spi/spidev.c
++++ b/drivers/spi/spidev.c
+@@ -402,7 +402,6 @@ spidev_ioctl(struct file *filp, unsigned
+ 		else
+ 			retval = get_user(tmp, (u32 __user *)arg);
+ 		if (retval == 0) {
+-			struct spi_controller *ctlr = spi->controller;
+ 			u32	save = spi->mode;
+ 
+ 			if (tmp & ~SPI_MODE_MASK) {
+@@ -410,10 +409,6 @@ spidev_ioctl(struct file *filp, unsigned
+ 				break;
+ 			}
+ 
+-			if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods &&
+-			    ctlr->cs_gpiods[spi->chip_select])
+-				tmp |= SPI_CS_HIGH;
+-
+ 			tmp |= spi->mode & ~SPI_MODE_MASK;
+ 			spi->mode = (u16)tmp;
+ 			retval = spi_setup(spi);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0005-Revert-mailbox-avoid-timer-start-from-callback.patch b/target/linux/bcm27xx/patches-5.10/950-0005-Revert-mailbox-avoid-timer-start-from-callback.patch
new file mode 100644
index 0000000000..5ec683ff6a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0005-Revert-mailbox-avoid-timer-start-from-callback.patch
@@ -0,0 +1,58 @@
+From a8fb0d43b8acd25d68a0d2c24fd0260393148447 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 3 Nov 2020 11:49:53 +0000
+Subject: [PATCH] Revert "mailbox: avoid timer start from callback"
+
+This reverts commit c7dacf5b0f32957b24ef29df1207dc2cd8307743.
+
+The Pi 400 shutdown/poweroff mechanism relies on being able to set
+a GPIO on the expander in the pm_power_off handler, something that
+requires two mailbox calls - GET_GPIO_STATE and SET_GPIO_STATE. A
+recent kernel change introduces a reasonable possibility that the
+GET call doesn't completes, and bisecting led to a commit from
+October that changes the timer usage of the mailbox.
+
+My theory is that there is a race condition in the new code that breaks
+the poll timer, but that it normally goes unnoticed because subsequent
+mailbox activity wakes it up again. The power-off mailbox calls happen
+at a time when other subsystems have been shut down, so if one of them
+fails then there is nothing to allow it to recover.
+
+See: https://github.com/raspberrypi/linux/issues/3941
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/mailbox/mailbox.c | 12 +++++-------
+ 1 file changed, 5 insertions(+), 7 deletions(-)
+
+--- a/drivers/mailbox/mailbox.c
++++ b/drivers/mailbox/mailbox.c
+@@ -82,12 +82,9 @@ static void msg_submit(struct mbox_chan
+ exit:
+ 	spin_unlock_irqrestore(&chan->lock, flags);
+ 
+-	/* kick start the timer immediately to avoid delays */
+-	if (!err && (chan->txdone_method & TXDONE_BY_POLL)) {
+-		/* but only if not already active */
+-		if (!hrtimer_active(&chan->mbox->poll_hrt))
+-			hrtimer_start(&chan->mbox->poll_hrt, 0, HRTIMER_MODE_REL);
+-	}
++	if (!err && (chan->txdone_method & TXDONE_BY_POLL))
++		/* kick start the timer immediately to avoid delays */
++		hrtimer_start(&chan->mbox->poll_hrt, 0, HRTIMER_MODE_REL);
+ }
+ 
+ static void tx_tick(struct mbox_chan *chan, int r)
+@@ -125,10 +122,11 @@ static enum hrtimer_restart txdone_hrtim
+ 		struct mbox_chan *chan = &mbox->chans[i];
+ 
+ 		if (chan->active_req && chan->cl) {
+-			resched = true;
+ 			txdone = chan->mbox->ops->last_tx_done(chan);
+ 			if (txdone)
+ 				tx_tick(chan, 0);
++			else
++				resched = true;
+ 		}
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0006-smsx95xx-fix-crimes-against-truesize.patch b/target/linux/bcm27xx/patches-5.10/950-0006-smsx95xx-fix-crimes-against-truesize.patch
new file mode 100644
index 0000000000..163dd76e1c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0006-smsx95xx-fix-crimes-against-truesize.patch
@@ -0,0 +1,47 @@
+From dbfae4876cd4c8525a0100f19307f16cf7fb384a Mon Sep 17 00:00:00 2001
+From: Steve Glendinning <steve.glendinning@smsc.com>
+Date: Thu, 19 Feb 2015 18:47:12 +0000
+Subject: [PATCH] smsx95xx: fix crimes against truesize
+
+smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings.
+
+This patch stops smsc95xx from changing truesize.
+
+Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
+---
+ drivers/net/usb/smsc95xx.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -67,6 +67,10 @@ static bool turbo_mode = true;
+ module_param(turbo_mode, bool, 0644);
+ MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+ 
++static bool truesize_mode = false;
++module_param(truesize_mode, bool, 0644);
++MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -1827,7 +1831,8 @@ static int smsc95xx_rx_fixup(struct usbn
+ 				if (dev->net->features & NETIF_F_RXCSUM)
+ 					smsc95xx_rx_csum_offload(skb);
+ 				skb_trim(skb, skb->len - 4); /* remove fcs */
+-				skb->truesize = size + sizeof(struct sk_buff);
++				if (truesize_mode)
++					skb->truesize = size + sizeof(struct sk_buff);
+ 
+ 				return 1;
+ 			}
+@@ -1845,7 +1850,8 @@ static int smsc95xx_rx_fixup(struct usbn
+ 			if (dev->net->features & NETIF_F_RXCSUM)
+ 				smsc95xx_rx_csum_offload(ax_skb);
+ 			skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
+-			ax_skb->truesize = size + sizeof(struct sk_buff);
++			if (truesize_mode)
++				ax_skb->truesize = size + sizeof(struct sk_buff);
+ 
+ 			usbnet_skb_return(dev, ax_skb);
+ 		}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0007-smsc95xx-Experimental-Enable-turbo_mode-and-packetsi.patch b/target/linux/bcm27xx/patches-5.10/950-0007-smsc95xx-Experimental-Enable-turbo_mode-and-packetsi.patch
new file mode 100644
index 0000000000..025b052333
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0007-smsc95xx-Experimental-Enable-turbo_mode-and-packetsi.patch
@@ -0,0 +1,43 @@
+From 5792c081bb959c57b381439e40d07c919193a993 Mon Sep 17 00:00:00 2001
+From: Sam Nazarko <email@samnazarko.co.uk>
+Date: Fri, 1 Apr 2016 17:27:21 +0100
+Subject: [PATCH] smsc95xx: Experimental: Enable turbo_mode and
+ packetsize=2560 by default
+
+See: http://forum.kodi.tv/showthread.php?tid=285288
+---
+ drivers/net/usb/smsc95xx.c | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -71,6 +71,10 @@ static bool truesize_mode = false;
+ module_param(truesize_mode, bool, 0644);
+ MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
+ 
++static int packetsize = 2560;
++module_param(packetsize, int, 0644);
++MODULE_PARM_DESC(packetsize, "Override the RX URB packet size");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -905,13 +909,13 @@ static int smsc95xx_reset(struct usbnet
+ 
+ 	if (!turbo_mode) {
+ 		burst_cap = 0;
+-		dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : MAX_SINGLE_PACKET_SIZE;
+ 	} else if (dev->udev->speed == USB_SPEED_HIGH) {
+-		burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+-		dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_HS_BURST_CAP_SIZE;
++		burst_cap = dev->rx_urb_size / HS_USB_PKT_SIZE;
+ 	} else {
+-		burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+-		dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
++		dev->rx_urb_size = packetsize ? packetsize : DEFAULT_FS_BURST_CAP_SIZE;
++		burst_cap = dev->rx_urb_size / FS_USB_PKT_SIZE;
+ 	}
+ 
+ 	netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0008-Allow-mac-address-to-be-set-in-smsc95xx.patch b/target/linux/bcm27xx/patches-5.10/950-0008-Allow-mac-address-to-be-set-in-smsc95xx.patch
new file mode 100644
index 0000000000..1cf4d21a57
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0008-Allow-mac-address-to-be-set-in-smsc95xx.patch
@@ -0,0 +1,96 @@
+From a5e86e4e7cc86e6a24844d758d2258c8b23f18f0 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 26 Mar 2013 17:26:38 +0000
+Subject: [PATCH] Allow mac address to be set in smsc95xx
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 56 insertions(+)
+
+--- a/drivers/net/usb/smsc95xx.c
++++ b/drivers/net/usb/smsc95xx.c
+@@ -50,6 +50,7 @@
+ #define SUSPEND_SUSPEND3		(0x08)
+ #define SUSPEND_ALLMODES		(SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
+ 					 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
++#define MAC_ADDR_LEN                    (6)
+ 
+ struct smsc95xx_priv {
+ 	u32 mac_cr;
+@@ -75,6 +76,10 @@ static int packetsize = 2560;
+ module_param(packetsize, int, 0644);
+ MODULE_PARM_DESC(packetsize, "Override the RX URB packet size");
+ 
++static char *macaddr = ":";
++module_param(macaddr, charp, 0);
++MODULE_PARM_DESC(macaddr, "MAC address");
++
+ static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
+ 					    u32 *data, int in_pm)
+ {
+@@ -761,6 +766,53 @@ static int smsc95xx_ioctl(struct net_dev
+ 	return phy_mii_ioctl(netdev->phydev, rq, cmd);
+ }
+ 
++/* Check the macaddr module parameter for a MAC address */
++static int smsc95xx_is_macaddr_param(struct usbnet *dev, u8 *dev_mac)
++{
++       int i, j, got_num, num;
++       u8 mtbl[MAC_ADDR_LEN];
++
++       if (macaddr[0] == ':')
++               return 0;
++
++       i = 0;
++       j = 0;
++       num = 0;
++       got_num = 0;
++       while (j < MAC_ADDR_LEN) {
++               if (macaddr[i] && macaddr[i] != ':') {
++                       got_num++;
++                       if ('0' <= macaddr[i] && macaddr[i] <= '9')
++                               num = num * 16 + macaddr[i] - '0';
++                       else if ('A' <= macaddr[i] && macaddr[i] <= 'F')
++                               num = num * 16 + 10 + macaddr[i] - 'A';
++                       else if ('a' <= macaddr[i] && macaddr[i] <= 'f')
++                               num = num * 16 + 10 + macaddr[i] - 'a';
++                       else
++                               break;
++                       i++;
++               } else if (got_num == 2) {
++                       mtbl[j++] = (u8) num;
++                       num = 0;
++                       got_num = 0;
++                       i++;
++               } else {
++                       break;
++               }
++       }
++
++       if (j == MAC_ADDR_LEN) {
++               netif_dbg(dev, ifup, dev->net, "Overriding MAC address with: "
++               "%02x:%02x:%02x:%02x:%02x:%02x\n", mtbl[0], mtbl[1], mtbl[2],
++                                               mtbl[3], mtbl[4], mtbl[5]);
++               for (i = 0; i < MAC_ADDR_LEN; i++)
++                       dev_mac[i] = mtbl[i];
++               return 1;
++       } else {
++               return 0;
++       }
++}
++
+ static void smsc95xx_init_mac_address(struct usbnet *dev)
+ {
+ 	/* maybe the boot loader passed the MAC address in devicetree */
+@@ -783,6 +835,10 @@ static void smsc95xx_init_mac_address(st
+ 		}
+ 	}
+ 
++	/* Check module parameters */
++	if (smsc95xx_is_macaddr_param(dev, dev->net->dev_addr))
++		return;
++
+ 	/* no useful static MAC address found. generate a random one */
+ 	eth_hw_addr_random(dev->net);
+ 	netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0009-Protect-__release_resource-against-resources-without.patch b/target/linux/bcm27xx/patches-5.10/950-0009-Protect-__release_resource-against-resources-without.patch
new file mode 100644
index 0000000000..db51c15cd8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0009-Protect-__release_resource-against-resources-without.patch
@@ -0,0 +1,28 @@
+From f146f2bb597fe00b6c2e5da169a766dc8ab2a4fa Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 13 Mar 2015 12:43:36 +0000
+Subject: [PATCH] Protect __release_resource against resources without
+ parents
+
+Without this patch, removing a device tree overlay can crash here.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ kernel/resource.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/kernel/resource.c
++++ b/kernel/resource.c
+@@ -214,6 +214,12 @@ static int __release_resource(struct res
+ {
+ 	struct resource *tmp, **p, *chd;
+ 
++	if (!old->parent) {
++		WARN(old->sibling, "sibling but no parent");
++		if (old->sibling)
++			return -EINVAL;
++		return 0;
++	}
+ 	p = &old->parent->child;
+ 	for (;;) {
+ 		tmp = *p;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0010-irq-bcm2836-Avoid-Invalid-trigger-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0010-irq-bcm2836-Avoid-Invalid-trigger-warning.patch
new file mode 100644
index 0000000000..3a611e0919
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0010-irq-bcm2836-Avoid-Invalid-trigger-warning.patch
@@ -0,0 +1,24 @@
+From 55a3a6691b480c57613f9db3a0e1aca02b7f68c1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 9 Feb 2017 14:33:30 +0000
+Subject: [PATCH] irq-bcm2836: Avoid "Invalid trigger warning"
+
+Initialise the level for each IRQ to avoid a warning from the
+arm arch timer code.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/irqchip/irq-bcm2836.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -128,7 +128,7 @@ static int bcm2836_map(struct irq_domain
+ 	irq_set_percpu_devid(irq);
+ 	irq_domain_set_info(d, irq, hw, chip, d->host_data,
+ 			    handle_percpu_devid_irq, NULL, NULL);
+-	irq_set_status_flags(irq, IRQ_NOAUTOEN);
++	irq_set_status_flags(irq, IRQ_NOAUTOEN | IRQ_TYPE_LEVEL_LOW);
+ 
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0011-irqchip-bcm2835-Add-FIQ-support.patch b/target/linux/bcm27xx/patches-5.10/950-0011-irqchip-bcm2835-Add-FIQ-support.patch
new file mode 100644
index 0000000000..95a4819ae1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0011-irqchip-bcm2835-Add-FIQ-support.patch
@@ -0,0 +1,127 @@
+From ad12646921360036adf7ecdcf1325b9a880b316a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 12 Jun 2015 19:01:05 +0200
+Subject: [PATCH] irqchip: bcm2835: Add FIQ support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add a duplicate irq range with an offset on the hwirq's so the
+driver can detect that enable_fiq() is used.
+Tested with downstream dwc_otg USB controller driver.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Acked-by: Stephen Warren <swarren@wwwdotorg.org>
+---
+ arch/arm/mach-bcm/Kconfig     |  1 +
+ drivers/irqchip/irq-bcm2835.c | 51 +++++++++++++++++++++++++++++++----
+ 2 files changed, 47 insertions(+), 5 deletions(-)
+
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -161,6 +161,7 @@ config ARCH_BCM2835
+ 	select ARM_TIMER_SP804
+ 	select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
+ 	select BCM2835_TIMER
++	select FIQ
+ 	select PINCTRL
+ 	select PINCTRL_BCM2835
+ 	select MFD_CORE
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -45,7 +45,7 @@
+ #include <asm/exception.h>
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+-#define MAKE_HWIRQ(b, n)	((b << 5) | (n))
++#define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+ #define HWIRQ_BANK(i)		(i >> 5)
+ #define HWIRQ_BIT(i)		BIT(i & 0x1f)
+ 
+@@ -62,9 +62,13 @@
+ 
+ #define REG_FIQ_CONTROL		0x0c
+ #define FIQ_CONTROL_ENABLE	BIT(7)
++#define REG_FIQ_ENABLE		FIQ_CONTROL_ENABLE
++#define REG_FIQ_DISABLE	0
+ 
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
++#define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
++#define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+ static const int reg_enable[] __initconst = { 0x18, 0x10, 0x14 };
+@@ -89,14 +93,38 @@ static void __exception_irq_entry bcm283
+ 	struct pt_regs *regs);
+ static void bcm2836_chained_handle_irq(struct irq_desc *desc);
+ 
++static inline unsigned int hwirq_to_fiq(unsigned long hwirq)
++{
++	hwirq -= NUMBER_IRQS;
++	/*
++	 * The hwirq numbering used in this driver is:
++	 *   BASE (0-7) GPU1 (32-63) GPU2 (64-95).
++	 * This differ from the one used in the FIQ register:
++	 *   GPU1 (0-31) GPU2 (32-63) BASE (64-71)
++	 */
++	if (hwirq >= 32)
++		return hwirq - 32;
++
++	return hwirq + 64;
++}
++
+ static void armctrl_mask_irq(struct irq_data *d)
+ {
+-	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.disable[HWIRQ_BANK(d->hwirq)]);
++	if (d->hwirq >= NUMBER_IRQS)
++		writel_relaxed(REG_FIQ_DISABLE, intc.base + REG_FIQ_CONTROL);
++	else
++		writel_relaxed(HWIRQ_BIT(d->hwirq),
++			       intc.disable[HWIRQ_BANK(d->hwirq)]);
+ }
+ 
+ static void armctrl_unmask_irq(struct irq_data *d)
+ {
+-	writel_relaxed(HWIRQ_BIT(d->hwirq), intc.enable[HWIRQ_BANK(d->hwirq)]);
++	if (d->hwirq >= NUMBER_IRQS)
++		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
++			       intc.base + REG_FIQ_CONTROL);
++	else
++		writel_relaxed(HWIRQ_BIT(d->hwirq),
++			       intc.enable[HWIRQ_BANK(d->hwirq)]);
+ }
+ 
+ static struct irq_chip armctrl_chip = {
+@@ -142,8 +170,9 @@ static int __init armctrl_of_init(struct
+ 	if (!base)
+ 		panic("%pOF: unable to map IC registers\n", node);
+ 
+-	intc.domain = irq_domain_add_linear(node, MAKE_HWIRQ(NR_BANKS, 0),
+-			&armctrl_ops, NULL);
++	intc.base = base;
++	intc.domain = irq_domain_add_linear(node, NUMBER_IRQS * 2,
++					    &armctrl_ops, NULL);
+ 	if (!intc.domain)
+ 		panic("%pOF: unable to create IRQ domain\n", node);
+ 
+@@ -186,6 +215,18 @@ static int __init armctrl_of_init(struct
+ 		set_handle_irq(bcm2835_handle_irq);
+ 	}
+ 
++	/* Make a duplicate irq range which is used to enable FIQ */
++	for (b = 0; b < NR_BANKS; b++) {
++		for (i = 0; i < bank_irqs[b]; i++) {
++			irq = irq_create_mapping(intc.domain,
++					MAKE_HWIRQ(b, i) + NUMBER_IRQS);
++			BUG_ON(irq <= 0);
++			irq_set_chip(irq, &armctrl_chip);
++			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
++		}
++	}
++	init_FIQ(FIQ_START);
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0012-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch b/target/linux/bcm27xx/patches-5.10/950-0012-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch
new file mode 100644
index 0000000000..f8ca67ca2b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0012-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch
@@ -0,0 +1,99 @@
+From 18774f96f2766eb711d462842626ae603110c18e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 23 Oct 2015 16:26:55 +0200
+Subject: [PATCH] irqchip: irq-bcm2835: Add 2836 FIQ support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 43 +++++++++++++++++++++++++++++++++--
+ 1 file changed, 41 insertions(+), 2 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -41,8 +41,11 @@
+ #include <linux/of_irq.h>
+ #include <linux/irqchip.h>
+ #include <linux/irqdomain.h>
++#include <linux/mfd/syscon.h>
++#include <linux/regmap.h>
+ 
+ #include <asm/exception.h>
++#include <asm/mach/irq.h>
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+ #define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+@@ -60,6 +63,9 @@
+ #define BANK0_VALID_MASK	(BANK0_HWIRQ_MASK | BANK1_HWIRQ | BANK2_HWIRQ \
+ 					| SHORTCUT1_MASK | SHORTCUT2_MASK)
+ 
++#undef ARM_LOCAL_GPU_INT_ROUTING
++#define ARM_LOCAL_GPU_INT_ROUTING 0x0c
++
+ #define REG_FIQ_CONTROL		0x0c
+ #define FIQ_CONTROL_ENABLE	BIT(7)
+ #define REG_FIQ_ENABLE		FIQ_CONTROL_ENABLE
+@@ -86,6 +92,7 @@ struct armctrl_ic {
+ 	void __iomem *enable[NR_BANKS];
+ 	void __iomem *disable[NR_BANKS];
+ 	struct irq_domain *domain;
++	struct regmap *local_regmap;
+ };
+ 
+ static struct armctrl_ic intc __read_mostly;
+@@ -119,12 +126,35 @@ static void armctrl_mask_irq(struct irq_
+ 
+ static void armctrl_unmask_irq(struct irq_data *d)
+ {
+-	if (d->hwirq >= NUMBER_IRQS)
++	if (d->hwirq >= NUMBER_IRQS) {
++		if (num_online_cpus() > 1) {
++			unsigned int data;
++			int ret;
++
++			if (!intc.local_regmap) {
++				pr_err("FIQ is disabled due to missing regmap\n");
++				return;
++			}
++
++			ret = regmap_read(intc.local_regmap,
++					  ARM_LOCAL_GPU_INT_ROUTING, &data);
++			if (ret) {
++				pr_err("Failed to read int routing %d\n", ret);
++				return;
++			}
++
++			data &= ~0xc;
++			data |= (1 << 2);
++			regmap_write(intc.local_regmap,
++				     ARM_LOCAL_GPU_INT_ROUTING, data);
++		}
++
+ 		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
+ 			       intc.base + REG_FIQ_CONTROL);
+-	else
++	} else {
+ 		writel_relaxed(HWIRQ_BIT(d->hwirq),
+ 			       intc.enable[HWIRQ_BANK(d->hwirq)]);
++	}
+ }
+ 
+ static struct irq_chip armctrl_chip = {
+@@ -215,6 +245,15 @@ static int __init armctrl_of_init(struct
+ 		set_handle_irq(bcm2835_handle_irq);
+ 	}
+ 
++	if (is_2836) {
++		intc.local_regmap =
++			syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local");
++		if (IS_ERR(intc.local_regmap)) {
++			pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n");
++			intc.local_regmap = NULL;
++		}
++	}
++
+ 	/* Make a duplicate irq range which is used to enable FIQ */
+ 	for (b = 0; b < NR_BANKS; b++) {
+ 		for (i = 0; i < bank_irqs[b]; i++) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0013-spi-spidev-Completely-disable-the-spidev-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0013-spi-spidev-Completely-disable-the-spidev-warning.patch
new file mode 100644
index 0000000000..1d2398cc53
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0013-spi-spidev-Completely-disable-the-spidev-warning.patch
@@ -0,0 +1,24 @@
+From 8469be136aebf9fe06746ec47e4495c77d5522f5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 14 Jul 2015 10:26:09 +0100
+Subject: [PATCH] spi: spidev: Completely disable the spidev warning
+
+An alternative strategy would be to use "rpi,spidev" instead, but that
+would require many Raspberry Pi Device Tree changes.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/spi/spidev.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/spi/spidev.c
++++ b/drivers/spi/spidev.c
+@@ -733,7 +733,7 @@ static int spidev_probe(struct spi_devic
+ 	 * compatible string, it is a Linux implementation thing
+ 	 * rather than a description of the hardware.
+ 	 */
+-	WARN(spi->dev.of_node &&
++	WARN(0 && spi->dev.of_node &&
+ 	     of_device_is_compatible(spi->dev.of_node, "spidev"),
+ 	     "%pOF: buggy DT: spidev listed directly in DT\n", spi->dev.of_node);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0014-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch b/target/linux/bcm27xx/patches-5.10/950-0014-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
new file mode 100644
index 0000000000..f4cf804581
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0014-dmaengine-bcm2835-Load-driver-early-and-support-lega.patch
@@ -0,0 +1,101 @@
+From 1fafff0383c50bbbb2d5bb3205923904f3f55ce8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 3 Oct 2015 22:22:55 +0200
+Subject: [PATCH] dmaengine: bcm2835: Load driver early and support
+ legacy API
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Load driver early since at least bcm2708_fb doesn't support deferred
+probing and even if it did, we don't want the video driver deferred.
+Support the legacy DMA API which is needed by bcm2708_fb.
+Don't mask out channel 2.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/dma/Kconfig       |  2 +-
+ drivers/dma/bcm2835-dma.c | 26 +++++++++++++++++++++++++-
+ 2 files changed, 26 insertions(+), 2 deletions(-)
+
+--- a/drivers/dma/Kconfig
++++ b/drivers/dma/Kconfig
+@@ -134,7 +134,7 @@ config COH901318
+ 
+ config DMA_BCM2835
+ 	tristate "BCM2835 DMA engine support"
+-	depends on ARCH_BCM2835
++	depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709
+ 	select DMA_ENGINE
+ 	select DMA_VIRTUAL_CHANNELS
+ 
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -25,6 +25,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/list.h>
+ #include <linux/module.h>
++#include <linux/platform_data/dma-bcm2708.h>
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
+ #include <linux/io.h>
+@@ -36,6 +37,7 @@
+ 
+ #define BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED 14
+ #define BCM2835_DMA_CHAN_NAME_SIZE 8
++#define BCM2835_DMA_BULK_MASK  BIT(0)
+ 
+ /**
+  * struct bcm2835_dmadev - BCM2835 DMA controller
+@@ -906,6 +908,9 @@ static int bcm2835_dma_probe(struct plat
+ 	base = devm_ioremap_resource(&pdev->dev, res);
+ 	if (IS_ERR(base))
+ 		return PTR_ERR(base);
++	rc = bcm_dmaman_probe(pdev, base, BCM2835_DMA_BULK_MASK);
++	if (rc)
++		dev_err(&pdev->dev, "Failed to initialize the legacy API\n");
+ 
+ 	od->base = base;
+ 
+@@ -951,6 +956,9 @@ static int bcm2835_dma_probe(struct plat
+ 		goto err_no_dma;
+ 	}
+ 
++	/* Channel 0 is used by the legacy API */
++	chans_available &= ~BCM2835_DMA_BULK_MASK;
++
+ 	/* get irqs for each channel that we support */
+ 	for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
+ 		/* skip masked out channels */
+@@ -1025,6 +1033,7 @@ static int bcm2835_dma_remove(struct pla
+ {
+ 	struct bcm2835_dmadev *od = platform_get_drvdata(pdev);
+ 
++	bcm_dmaman_remove(pdev);
+ 	dma_async_device_unregister(&od->ddev);
+ 	bcm2835_dma_free(od);
+ 
+@@ -1040,7 +1049,22 @@ static struct platform_driver bcm2835_dm
+ 	},
+ };
+ 
+-module_platform_driver(bcm2835_dma_driver);
++static int bcm2835_dma_init(void)
++{
++	return platform_driver_register(&bcm2835_dma_driver);
++}
++
++static void bcm2835_dma_exit(void)
++{
++	platform_driver_unregister(&bcm2835_dma_driver);
++}
++
++/*
++ * Load after serial driver (arch_initcall) so we see the messages if it fails,
++ * but before drivers (module_init) that need a DMA channel.
++ */
++subsys_initcall(bcm2835_dma_init);
++module_exit(bcm2835_dma_exit);
+ 
+ MODULE_ALIAS("platform:bcm2835-dma");
+ MODULE_DESCRIPTION("BCM2835 DMA engine driver");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0015-firmware-Updated-mailbox-header.patch b/target/linux/bcm27xx/patches-5.10/950-0015-firmware-Updated-mailbox-header.patch
new file mode 100644
index 0000000000..ec1e48a047
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0015-firmware-Updated-mailbox-header.patch
@@ -0,0 +1,27 @@
+From b7ad81911a06fd8047ca36c07bd49d8317833502 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 25 Jan 2016 17:25:12 +0000
+Subject: [PATCH] firmware: Updated mailbox header
+
+---
+ include/soc/bcm2835/raspberrypi-firmware.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -9,6 +9,8 @@
+ #include <linux/types.h>
+ #include <linux/of_device.h>
+ 
++#define RPI_FIRMWARE_CHAN_FB		1
++
+ struct rpi_firmware;
+ 
+ enum rpi_firmware_property_status {
+@@ -159,5 +161,6 @@ static inline struct rpi_firmware *rpi_f
+ 	return NULL;
+ }
+ #endif
++int rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data);
+ 
+ #endif /* __SOC_RASPBERRY_FIRMWARE_H__ */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0016-rtc-Add-SPI-alias-for-pcf2123-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0016-rtc-Add-SPI-alias-for-pcf2123-driver.patch
new file mode 100644
index 0000000000..383b28bdcc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0016-rtc-Add-SPI-alias-for-pcf2123-driver.patch
@@ -0,0 +1,20 @@
+From d9fa2c594a6dfd5f538c50eaa6a06449d06c5a8e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 15 Jun 2016 16:48:41 +0100
+Subject: [PATCH] rtc: Add SPI alias for pcf2123 driver
+
+Without this alias, Device Tree won't cause the driver
+to be loaded.
+
+See: https://github.com/raspberrypi/linux/pull/1510
+---
+ drivers/rtc/rtc-pcf2123.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/rtc/rtc-pcf2123.c
++++ b/drivers/rtc/rtc-pcf2123.c
+@@ -465,3 +465,4 @@ module_spi_driver(pcf2123_driver);
+ MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>");
+ MODULE_DESCRIPTION("NXP PCF2123 RTC driver");
+ MODULE_LICENSE("GPL");
++MODULE_ALIAS("spi:rtc-pcf2123");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0017-watchdog-bcm2835-Support-setting-reboot-partition.patch b/target/linux/bcm27xx/patches-5.10/950-0017-watchdog-bcm2835-Support-setting-reboot-partition.patch
new file mode 100644
index 0000000000..e33b5d4bcf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0017-watchdog-bcm2835-Support-setting-reboot-partition.patch
@@ -0,0 +1,102 @@
+From 351b9cbfc6aed837c7e23462d7109372de22e2bb Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 7 Oct 2016 16:50:59 +0200
+Subject: [PATCH] watchdog: bcm2835: Support setting reboot partition
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The Raspberry Pi firmware looks at the RSTS register to know which
+partition to boot from. The reboot syscall command
+LINUX_REBOOT_CMD_RESTART2 supports passing in a string argument.
+
+Add support for passing in a partition number 0..63 to boot from.
+Partition 63 is a special partiton indicating halt.
+If the partition doesn't exist, the firmware falls back to partition 0.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/watchdog/bcm2835_wdt.c | 49 +++++++++++++++++++---------------
+ 1 file changed, 27 insertions(+), 22 deletions(-)
+
+--- a/drivers/watchdog/bcm2835_wdt.c
++++ b/drivers/watchdog/bcm2835_wdt.c
+@@ -32,13 +32,7 @@
+ #define PM_RSTC_WRCFG_SET		0x00000030
+ #define PM_RSTC_WRCFG_FULL_RESET	0x00000020
+ #define PM_RSTC_RESET			0x00000102
+-
+-/*
+- * The Raspberry Pi firmware uses the RSTS register to know which partition
+- * to boot from. The partition value is spread into bits 0, 2, 4, 6, 8, 10.
+- * Partition 63 is a special partition used by the firmware to indicate halt.
+- */
+-#define PM_RSTS_RASPBERRYPI_HALT	0x555
++#define PM_RSTS_PARTITION_CLR          0xfffffaaa
+ 
+ #define SECS_TO_WDOG_TICKS(x) ((x) << 16)
+ #define WDOG_TICKS_TO_SECS(x) ((x) >> 16)
+@@ -97,9 +91,24 @@ static unsigned int bcm2835_wdt_get_time
+ 	return WDOG_TICKS_TO_SECS(ret & PM_WDOG_TIME_SET);
+ }
+ 
+-static void __bcm2835_restart(struct bcm2835_wdt *wdt)
++/*
++ * The Raspberry Pi firmware uses the RSTS register to know which partiton
++ * to boot from. The partiton value is spread into bits 0, 2, 4, 6, 8, 10.
++ * Partiton 63 is a special partition used by the firmware to indicate halt.
++ */
++
++static void __bcm2835_restart(struct bcm2835_wdt *wdt, u8 partition)
+ {
+-	u32 val;
++	u32 val, rsts;
++
++	rsts = (partition & BIT(0)) | ((partition & BIT(1)) << 1) |
++	       ((partition & BIT(2)) << 2) | ((partition & BIT(3)) << 3) |
++	       ((partition & BIT(4)) << 4) | ((partition & BIT(5)) << 5);
++
++	val = readl_relaxed(wdt->base + PM_RSTS);
++	val &= PM_RSTS_PARTITION_CLR;
++	val |= PM_PASSWORD | rsts;
++	writel_relaxed(val, wdt->base + PM_RSTS);
+ 
+ 	/* use a timeout of 10 ticks (~150us) */
+ 	writel_relaxed(10 | PM_PASSWORD, wdt->base + PM_WDOG);
+@@ -117,7 +126,13 @@ static int bcm2835_restart(struct watchd
+ {
+ 	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+ 
+-	__bcm2835_restart(wdt);
++	unsigned long long val;
++	u8 partition = 0;
++
++	if (data && !kstrtoull(data, 0, &val) && val <= 63)
++		partition = val;
++
++	__bcm2835_restart(wdt, partition);
+ 
+ 	return 0;
+ }
+@@ -152,19 +167,9 @@ static struct watchdog_device bcm2835_wd
+ static void bcm2835_power_off(void)
+ {
+ 	struct bcm2835_wdt *wdt = bcm2835_power_off_wdt;
+-	u32 val;
+-
+-	/*
+-	 * We set the watchdog hard reset bit here to distinguish this reset
+-	 * from the normal (full) reset. bootcode.bin will not reboot after a
+-	 * hard reset.
+-	 */
+-	val = readl_relaxed(wdt->base + PM_RSTS);
+-	val |= PM_PASSWORD | PM_RSTS_RASPBERRYPI_HALT;
+-	writel_relaxed(val, wdt->base + PM_RSTS);
+ 
+-	/* Continue with normal reset mechanism */
+-	__bcm2835_restart(wdt);
++	/* Partition 63 tells the firmware that this is a halt */
++	__bcm2835_restart(wdt, 63);
+ }
+ 
+ static int bcm2835_wdt_probe(struct platform_device *pdev)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0018-reboot-Use-power-off-rather-than-busy-spinning-when-.patch b/target/linux/bcm27xx/patches-5.10/950-0018-reboot-Use-power-off-rather-than-busy-spinning-when-.patch
new file mode 100644
index 0000000000..36d8bbce24
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0018-reboot-Use-power-off-rather-than-busy-spinning-when-.patch
@@ -0,0 +1,23 @@
+From e722eb6ced1ad7a162782fe10dd5d4225a6b4e0d Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 5 Apr 2016 19:40:12 +0100
+Subject: [PATCH] reboot: Use power off rather than busy spinning when
+ halt is requested
+
+---
+ arch/arm/kernel/reboot.c | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+--- a/arch/arm/kernel/reboot.c
++++ b/arch/arm/kernel/reboot.c
+@@ -102,9 +102,7 @@ void machine_shutdown(void)
+  */
+ void machine_halt(void)
+ {
+-	local_irq_disable();
+-	smp_send_stop();
+-	while (1);
++	machine_power_off();
+ }
+ 
+ /*
diff --git a/target/linux/bcm27xx/patches-5.10/950-0019-bcm-Make-RASPBERRYPI_POWER-depend-on-PM.patch b/target/linux/bcm27xx/patches-5.10/950-0019-bcm-Make-RASPBERRYPI_POWER-depend-on-PM.patch
new file mode 100644
index 0000000000..663fde1233
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0019-bcm-Make-RASPBERRYPI_POWER-depend-on-PM.patch
@@ -0,0 +1,19 @@
+From 0bc33dc51825662d4fc7a46c5e622de00e5cbf80 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 9 Nov 2016 13:02:52 +0000
+Subject: [PATCH] bcm: Make RASPBERRYPI_POWER depend on PM
+
+---
+ drivers/soc/bcm/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/soc/bcm/Kconfig
++++ b/drivers/soc/bcm/Kconfig
+@@ -17,6 +17,7 @@ config RASPBERRYPI_POWER
+ 	bool "Raspberry Pi power domain driver"
+ 	depends on ARCH_BCM2835 || (COMPILE_TEST && OF)
+ 	depends on RASPBERRYPI_FIRMWARE=y
++	depends on PM
+ 	select PM_GENERIC_DOMAINS if PM
+ 	help
+ 	  This enables support for the RPi power domains which can be enabled
diff --git a/target/linux/bcm27xx/patches-5.10/950-0020-Register-the-clocks-early-during-the-boot-process-so.patch b/target/linux/bcm27xx/patches-5.10/950-0020-Register-the-clocks-early-during-the-boot-process-so.patch
new file mode 100644
index 0000000000..4c83d165c6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0020-Register-the-clocks-early-during-the-boot-process-so.patch
@@ -0,0 +1,45 @@
+From 41e34cd05d40eca6674e25eb9a85e5f7992d4e83 Mon Sep 17 00:00:00 2001
+From: Martin Sperl <kernel@martin.sperl.org>
+Date: Fri, 2 Sep 2016 16:45:27 +0100
+Subject: [PATCH] Register the clocks early during the boot process, so
+ that special/critical clocks can get enabled early on in the boot process
+ avoiding the risk of disabling a clock, pll_divider or pll when a claiming
+ driver fails to install propperly - maybe it needs to defer.
+
+Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 15 +++++++++++++--
+ 1 file changed, 13 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -2295,8 +2295,15 @@ static int bcm2835_clk_probe(struct plat
+ 	if (ret)
+ 		return ret;
+ 
+-	return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
++	ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
+ 				      &cprman->onecell);
++	if (ret)
++		return ret;
++
++	/* note that we have registered all the clocks */
++	dev_dbg(dev, "registered %d clocks\n", asize);
++
++	return 0;
+ }
+ 
+ static const struct cprman_plat_data cprman_bcm2835_plat_data = {
+@@ -2322,7 +2329,11 @@ static struct platform_driver bcm2835_cl
+ 	.probe          = bcm2835_clk_probe,
+ };
+ 
+-builtin_platform_driver(bcm2835_clk_driver);
++static int __init __bcm2835_clk_driver_init(void)
++{
++	return platform_driver_register(&bcm2835_clk_driver);
++}
++core_initcall(__bcm2835_clk_driver_init);
+ 
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("BCM2835 clock driver");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0021-bcm2835-rng-Avoid-initialising-if-already-enabled.patch b/target/linux/bcm27xx/patches-5.10/950-0021-bcm2835-rng-Avoid-initialising-if-already-enabled.patch
new file mode 100644
index 0000000000..bace3071d5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0021-bcm2835-rng-Avoid-initialising-if-already-enabled.patch
@@ -0,0 +1,25 @@
+From 102d9fbd0a8d762835a9f9a7917e9eace3a9d84e Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 6 Dec 2016 17:05:39 +0000
+Subject: [PATCH] bcm2835-rng: Avoid initialising if already enabled
+
+Avoids the 0x40000 cycles of warmup again if firmware has already used it
+---
+ drivers/char/hw_random/bcm2835-rng.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/char/hw_random/bcm2835-rng.c
++++ b/drivers/char/hw_random/bcm2835-rng.c
+@@ -102,8 +102,10 @@ static int bcm2835_rng_init(struct hwrng
+ 	}
+ 
+ 	/* set warm-up count & enable */
+-	rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS);
+-	rng_writel(priv, RNG_RBGEN, RNG_CTRL);
++	if (!(rng_readl(priv, RNG_CTRL) & RNG_RBGEN)) {
++		rng_writel(priv, RNG_WARMUP_COUNT, RNG_STATUS);
++		rng_writel(priv, RNG_RBGEN, RNG_CTRL);
++	}
+ 
+ 	return ret;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0022-clk-bcm2835-Mark-used-PLLs-and-dividers-CRITICAL.patch b/target/linux/bcm27xx/patches-5.10/950-0022-clk-bcm2835-Mark-used-PLLs-and-dividers-CRITICAL.patch
new file mode 100644
index 0000000000..4a0f1c5ad6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0022-clk-bcm2835-Mark-used-PLLs-and-dividers-CRITICAL.patch
@@ -0,0 +1,28 @@
+From 3af9c4ed5775b7675e679a80a381eafe2ce726ae Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 13 Feb 2017 17:20:08 +0000
+Subject: [PATCH] clk-bcm2835: Mark used PLLs and dividers CRITICAL
+
+The VPU configures and relies on several PLLs and dividers. Mark all
+enabled dividers and their PLLs as CRITICAL to prevent the kernel from
+switching them off.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1384,6 +1384,11 @@ bcm2835_register_pll_divider(struct bcm2
+ 	divider->div.hw.init = &init;
+ 	divider->div.table = NULL;
+ 
++	if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) {
++		init.flags |= CLK_IS_CRITICAL;
++		divider->div.flags |= CLK_IS_CRITICAL;
++	}
++
+ 	divider->cprman = cprman;
+ 	divider->data = divider_data;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0023-clk-bcm2835-Add-claim-clocks-property.patch b/target/linux/bcm27xx/patches-5.10/950-0023-clk-bcm2835-Add-claim-clocks-property.patch
new file mode 100644
index 0000000000..efd1ccd268
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0023-clk-bcm2835-Add-claim-clocks-property.patch
@@ -0,0 +1,120 @@
+From 05cae664e29e510111cf24f2beb1c31cba09bcce Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 13 Feb 2017 17:20:08 +0000
+Subject: [PATCH] clk-bcm2835: Add claim-clocks property
+
+The claim-clocks property can be used to prevent PLLs and dividers
+from being marked as critical. It contains a vector of clock IDs,
+as defined by dt-bindings/clock/bcm2835.h.
+
+Use this mechanism to claim PLLD_DSI0, PLLD_DSI1, PLLH_AUX and
+PLLH_PIX for the vc4_kms_v3d driver.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 45 ++++++++++++++++++++++++++++++++---
+ 1 file changed, 42 insertions(+), 3 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1312,6 +1312,8 @@ static const struct clk_ops bcm2835_vpu_
+ 	.debug_init = bcm2835_clock_debug_init,
+ };
+ 
++static bool bcm2835_clk_is_claimed(const char *name);
++
+ static struct clk_hw *bcm2835_register_pll(struct bcm2835_cprman *cprman,
+ 					   const void *data)
+ {
+@@ -1329,6 +1331,9 @@ static struct clk_hw *bcm2835_register_p
+ 	init.ops = &bcm2835_pll_clk_ops;
+ 	init.flags = pll_data->flags | CLK_IGNORE_UNUSED;
+ 
++	if (!bcm2835_clk_is_claimed(pll_data->name))
++		init.flags |= CLK_IS_CRITICAL;
++
+ 	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ 	if (!pll)
+ 		return NULL;
+@@ -1384,9 +1389,11 @@ bcm2835_register_pll_divider(struct bcm2
+ 	divider->div.hw.init = &init;
+ 	divider->div.table = NULL;
+ 
+-	if (!(cprman_read(cprman, data->cm_reg) & data->hold_mask)) {
+-		init.flags |= CLK_IS_CRITICAL;
+-		divider->div.flags |= CLK_IS_CRITICAL;
++	if (!(cprman_read(cprman, divider_data->cm_reg) & divider_data->hold_mask)) {
++		if (!bcm2835_clk_is_claimed(divider_data->source_pll))
++			init.flags |= CLK_IS_CRITICAL;
++		if (!bcm2835_clk_is_claimed(divider_data->name))
++			divider->div.flags |= CLK_IS_CRITICAL;
+ 	}
+ 
+ 	divider->cprman = cprman;
+@@ -1443,6 +1450,15 @@ static struct clk_hw *bcm2835_register_c
+ 	init.flags = clock_data->flags | CLK_IGNORE_UNUSED;
+ 
+ 	/*
++	 * Some GPIO clocks for ethernet/wifi PLLs are marked as
++	 * critical (since some platforms use them), but if the
++	 * firmware didn't have them turned on then they clearly
++	 * aren't actually critical.
++	 */
++	if ((cprman_read(cprman, clock_data->ctl_reg) & CM_ENABLE) == 0)
++		init.flags &= ~CLK_IS_CRITICAL;
++
++	/*
+ 	 * Pass the CLK_SET_RATE_PARENT flag if we are allowed to propagate
+ 	 * rate changes on at least of the parents.
+ 	 */
+@@ -2221,6 +2237,8 @@ static const struct bcm2835_clk_desc clk
+ 		.ctl_reg = CM_PERIICTL),
+ };
+ 
++static bool bcm2835_clk_claimed[ARRAY_SIZE(clk_desc_array)];
++
+ /*
+  * Permanently take a reference on the parent of the SDRAM clock.
+  *
+@@ -2240,6 +2258,19 @@ static int bcm2835_mark_sdc_parent_criti
+ 	return clk_prepare_enable(parent);
+ }
+ 
++static bool bcm2835_clk_is_claimed(const char *name)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(clk_desc_array); i++) {
++		const char *clk_name = *(const char **)(clk_desc_array[i].data);
++		if (!strcmp(name, clk_name))
++		    return bcm2835_clk_claimed[i];
++	}
++
++	return false;
++}
++
+ static int bcm2835_clk_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+@@ -2249,6 +2280,7 @@ static int bcm2835_clk_probe(struct plat
+ 	const size_t asize = ARRAY_SIZE(clk_desc_array);
+ 	const struct cprman_plat_data *pdata;
+ 	size_t i;
++	u32 clk_id;
+ 	int ret;
+ 
+ 	pdata = of_device_get_match_data(&pdev->dev);
+@@ -2267,6 +2299,13 @@ static int bcm2835_clk_probe(struct plat
+ 	if (IS_ERR(cprman->regs))
+ 		return PTR_ERR(cprman->regs);
+ 
++	memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed));
++	for (i = 0;
++	     !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks",
++					 i, &clk_id);
++	     i++)
++		bcm2835_clk_claimed[clk_id]= true;
++
+ 	memcpy(cprman->real_parent_names, cprman_parent_names,
+ 	       sizeof(cprman_parent_names));
+ 	of_clk_parent_fill(dev->of_node, cprman->real_parent_names,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0024-clk-bcm2835-Read-max-core-clock-from-firmware.patch b/target/linux/bcm27xx/patches-5.10/950-0024-clk-bcm2835-Read-max-core-clock-from-firmware.patch
new file mode 100644
index 0000000000..8ad9a6edc7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0024-clk-bcm2835-Read-max-core-clock-from-firmware.patch
@@ -0,0 +1,115 @@
+From 6ac8a6c58b51d02780b7a1fc882df33ae2560798 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 6 Mar 2017 09:06:18 +0000
+Subject: [PATCH] clk-bcm2835: Read max core clock from firmware
+
+The VPU is responsible for managing the core clock, usually under
+direction from the bcm2835-cpufreq driver but not via the clk-bcm2835
+driver. Since the core frequency can change without warning, it is
+safer to report the maximum clock rate to users of the core clock -
+I2C, SPI and the mini UART - to err on the safe side when calculating
+clock divisors.
+
+If the DT node for the clock driver includes a reference to the
+firmware node, use the firmware API to query the maximum core clock
+instead of reading the divider registers.
+
+Prior to this patch, a "100KHz" I2C bus was sometimes clocked at about
+160KHz. In particular, switching to the 4.9 kernel was likely to break
+SenseHAT usage on a Pi3.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 39 ++++++++++++++++++++++++++++++++++-
+ 1 file changed, 38 insertions(+), 1 deletion(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -35,6 +35,7 @@
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
+ #include <dt-bindings/clock/bcm2835.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ #define CM_PASSWORD		0x5a000000
+ 
+@@ -295,6 +296,8 @@
+ #define SOC_BCM2711		BIT(1)
+ #define SOC_ALL			(SOC_BCM2835 | SOC_BCM2711)
+ 
++#define VCMSG_ID_CORE_CLOCK     4
++
+ /*
+  * Names of clocks used within the driver that need to be replaced
+  * with an external parent's name.  This array is in the order that
+@@ -313,6 +316,7 @@ static const char *const cprman_parent_n
+ struct bcm2835_cprman {
+ 	struct device *dev;
+ 	void __iomem *regs;
++	struct rpi_firmware *fw;
+ 	spinlock_t regs_lock; /* spinlock for all clocks */
+ 	unsigned int soc;
+ 
+@@ -1016,6 +1020,30 @@ static unsigned long bcm2835_clock_get_r
+ 	return bcm2835_clock_rate_from_divisor(clock, parent_rate, div);
+ }
+ 
++static unsigned long bcm2835_clock_get_rate_vpu(struct clk_hw *hw,
++						unsigned long parent_rate)
++{
++	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
++	struct bcm2835_cprman *cprman = clock->cprman;
++
++	if (cprman->fw) {
++		struct {
++			u32 id;
++			u32 val;
++		} packet;
++
++		packet.id = VCMSG_ID_CORE_CLOCK;
++		packet.val = 0;
++
++		if (!rpi_firmware_property(cprman->fw,
++					   RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
++					   &packet, sizeof(packet)))
++			return packet.val;
++	}
++
++	return bcm2835_clock_get_rate(hw, parent_rate);
++}
++
+ static void bcm2835_clock_wait_busy(struct bcm2835_clock *clock)
+ {
+ 	struct bcm2835_cprman *cprman = clock->cprman;
+@@ -1304,7 +1332,7 @@ static int bcm2835_vpu_clock_is_on(struc
+  */
+ static const struct clk_ops bcm2835_vpu_clock_clk_ops = {
+ 	.is_prepared = bcm2835_vpu_clock_is_on,
+-	.recalc_rate = bcm2835_clock_get_rate,
++	.recalc_rate = bcm2835_clock_get_rate_vpu,
+ 	.set_rate = bcm2835_clock_set_rate,
+ 	.determine_rate = bcm2835_clock_determine_rate,
+ 	.set_parent = bcm2835_clock_set_parent,
+@@ -2279,6 +2307,7 @@ static int bcm2835_clk_probe(struct plat
+ 	const struct bcm2835_clk_desc *desc;
+ 	const size_t asize = ARRAY_SIZE(clk_desc_array);
+ 	const struct cprman_plat_data *pdata;
++	struct device_node *fw_node;
+ 	size_t i;
+ 	u32 clk_id;
+ 	int ret;
+@@ -2299,6 +2328,14 @@ static int bcm2835_clk_probe(struct plat
+ 	if (IS_ERR(cprman->regs))
+ 		return PTR_ERR(cprman->regs);
+ 
++	fw_node = of_parse_phandle(dev->of_node, "firmware", 0);
++	if (fw_node) {
++		struct rpi_firmware *fw = rpi_firmware_get(NULL);
++		if (!fw)
++			return -EPROBE_DEFER;
++		cprman->fw = fw;
++	}
++
+ 	memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed));
+ 	for (i = 0;
+ 	     !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0025-sound-Demote-deferral-errors-to-INFO-level.patch b/target/linux/bcm27xx/patches-5.10/950-0025-sound-Demote-deferral-errors-to-INFO-level.patch
new file mode 100644
index 0000000000..d97a97eedf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0025-sound-Demote-deferral-errors-to-INFO-level.patch
@@ -0,0 +1,35 @@
+From 2a0e0c15c001bfde3666f159552e414217fe44ac Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 9 Feb 2017 14:36:44 +0000
+Subject: [PATCH] sound: Demote deferral errors to INFO level
+
+At present there is no mechanism to specify driver load order,
+which can lead to deferrals and repeated retries until successful.
+Since this situation is expected, reduce the dmesg level to
+INFO and mention that the operation will be retried.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ sound/soc/soc-core.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/sound/soc/soc-core.c
++++ b/sound/soc/soc-core.c
+@@ -1016,7 +1016,7 @@ int snd_soc_add_pcm_runtime(struct snd_s
+ 	for_each_link_cpus(dai_link, i, cpu) {
+ 		asoc_rtd_to_cpu(rtd, i) = snd_soc_find_dai(cpu);
+ 		if (!asoc_rtd_to_cpu(rtd, i)) {
+-			dev_info(card->dev, "ASoC: CPU DAI %s not registered\n",
++			dev_info(card->dev, "ASoC: CPU DAI %s not registered - will retry\n",
+ 				 cpu->dai_name);
+ 			goto _err_defer;
+ 		}
+@@ -1027,7 +1027,7 @@ int snd_soc_add_pcm_runtime(struct snd_s
+ 	for_each_link_codecs(dai_link, i, codec) {
+ 		asoc_rtd_to_codec(rtd, i) = snd_soc_find_dai(codec);
+ 		if (!asoc_rtd_to_codec(rtd, i)) {
+-			dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n",
++			dev_info(card->dev, "ASoC: CODEC DAI %s not registered- will retry\n",
+ 				 codec->dai_name);
+ 			goto _err_defer;
+ 		}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0026-Update-vfpmodule.c.patch b/target/linux/bcm27xx/patches-5.10/950-0026-Update-vfpmodule.c.patch
new file mode 100644
index 0000000000..51bf29b14c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0026-Update-vfpmodule.c.patch
@@ -0,0 +1,137 @@
+From 55f18cc01fc9c93999ea935f7d869d136f5204ed Mon Sep 17 00:00:00 2001
+From: Claggy3 <stephen.maclagan@hotmail.com>
+Date: Sat, 11 Feb 2017 14:00:30 +0000
+Subject: [PATCH] Update vfpmodule.c
+
+Christopher Alexander Tobias Schulze - May 2, 2015, 11:57 a.m.
+This patch fixes a problem with VFP state save and restore related
+to exception handling (panic with message "BUG: unsupported FP
+instruction in kernel mode") present on VFP11 floating point units
+(as used with ARM1176JZF-S CPUs, e.g. on first generation Raspberry
+Pi boards). This patch was developed and discussed on
+
+   https://github.com/raspberrypi/linux/issues/859
+
+A precondition to see the crashes is that floating point exception
+traps are enabled. In this case, the VFP11 might determine that a FPU
+operation needs to trap at a point in time when it is not possible to
+signal this to the ARM11 core any more. The VFP11 will then set the
+FPEXC.EX bit and store the trapped opcode in FPINST. (In some cases,
+a second opcode might have been accepted by the VFP11 before the
+exception was detected and could be reported to the ARM11 - in this
+case, the VFP11 also sets FPEXC.FP2V and stores the second opcode in
+FPINST2.)
+
+If FPEXC.EX is set, the VFP11 will "bounce" the next FPU opcode issued
+by the ARM11 CPU, which will be seen by the ARM11 as an undefined opcode
+trap. The VFP support code examines the FPEXC.EX and FPEXC.FP2V bits
+to decide what actions to take, i.e., whether to emulate the opcodes
+found in FPINST and FPINST2, and whether to retry the bounced instruction.
+
+If a user space application has left the VFP11 in this "pending trap"
+state, the next FPU opcode issued to the VFP11 might actually be the
+VSTMIA operation vfp_save_state() uses to store the FPU registers
+to memory (in our test cases, when building the signal stack frame).
+In this case, the kernel crashes as described above.
+
+This patch fixes the problem by making sure that vfp_save_state() is
+always entered with FPEXC.EX cleared. (The current value of FPEXC has
+already been saved, so this does not corrupt the context. Clearing
+FPEXC.EX has no effects on FPINST or FPINST2. Also note that many
+callers already modify FPEXC by setting FPEXC.EN before invoking
+vfp_save_state().)
+
+This patch also addresses a second problem related to FPEXC.EX: After
+returning from signal handling, the kernel reloads the VFP context
+from the user mode stack. However, the current code explicitly clears
+both FPEXC.EX and FPEXC.FP2V during reload. As VFP11 requires these
+bits to be preserved, this patch disables clearing them for VFP
+implementations belonging to architecture 1. There should be no
+negative side effects: the user can set both bits by executing FPU
+opcodes anyway, and while user code may now place arbitrary values
+into FPINST and FPINST2 (e.g., non-VFP ARM opcodes) the VFP support
+code knows which instructions can be emulated, and rejects other
+opcodes with "unhandled bounce" messages, so there should be no
+security impact from allowing reloading FPEXC.EX and FPEXC.FP2V.
+
+Signed-off-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
+---
+ arch/arm/vfp/vfpmodule.c | 25 +++++++++++++++++++------
+ 1 file changed, 19 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/vfp/vfpmodule.c
++++ b/arch/arm/vfp/vfpmodule.c
+@@ -176,8 +176,11 @@ static int vfp_notifier(struct notifier_
+ 		 * case the thread migrates to a different CPU. The
+ 		 * restoring is done lazily.
+ 		 */
+-		if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu])
++		if ((fpexc & FPEXC_EN) && vfp_current_hw_state[cpu]) {
++			/* vfp_save_state oopses on VFP11 if EX bit set */
++			fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 			vfp_save_state(vfp_current_hw_state[cpu], fpexc);
++		}
+ #endif
+ 
+ 		/*
+@@ -454,13 +457,16 @@ static int vfp_pm_suspend(void)
+ 	/* if vfp is on, then save state for resumption */
+ 	if (fpexc & FPEXC_EN) {
+ 		pr_debug("%s: saving vfp state\n", __func__);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 		vfp_save_state(&ti->vfpstate, fpexc);
+ 
+ 		/* disable, just in case */
+ 		fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN);
+ 	} else if (vfp_current_hw_state[ti->cpu]) {
+ #ifndef CONFIG_SMP
+-		fmxr(FPEXC, fpexc | FPEXC_EN);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN);
+ 		vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc);
+ 		fmxr(FPEXC, fpexc);
+ #endif
+@@ -523,7 +529,8 @@ void vfp_sync_hwstate(struct thread_info
+ 		/*
+ 		 * Save the last VFP state on this CPU.
+ 		 */
+-		fmxr(FPEXC, fpexc | FPEXC_EN);
++		/* vfp_save_state oopses on VFP11 if EX bit set */
++		fmxr(FPEXC, (fpexc & ~FPEXC_EX) | FPEXC_EN);
+ 		vfp_save_state(&thread->vfpstate, fpexc | FPEXC_EN);
+ 		fmxr(FPEXC, fpexc);
+ 	}
+@@ -589,6 +596,7 @@ int vfp_restore_user_hwstate(struct user
+ 	struct thread_info *thread = current_thread_info();
+ 	struct vfp_hard_struct *hwstate = &thread->vfpstate.hard;
+ 	unsigned long fpexc;
++	u32 fpsid = fmrx(FPSID);
+ 
+ 	/* Disable VFP to avoid corrupting the new thread state. */
+ 	vfp_flush_hwstate(thread);
+@@ -611,8 +619,12 @@ int vfp_restore_user_hwstate(struct user
+ 	/* Ensure the VFP is enabled. */
+ 	fpexc |= FPEXC_EN;
+ 
+-	/* Ensure FPINST2 is invalid and the exception flag is cleared. */
+-	fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
++	/* Mask FPXEC_EX and FPEXC_FP2V if not required by VFP arch */
++	if ((fpsid & FPSID_ARCH_MASK) != (1 << FPSID_ARCH_BIT)) {
++		/* Ensure FPINST2 is invalid and the exception flag is cleared. */
++		fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
++	}
++
+ 	hwstate->fpexc = fpexc;
+ 
+ 	hwstate->fpinst = ufp_exc->fpinst;
+@@ -726,7 +738,8 @@ void kernel_neon_begin(void)
+ 	cpu = get_cpu();
+ 
+ 	fpexc = fmrx(FPEXC) | FPEXC_EN;
+-	fmxr(FPEXC, fpexc);
++	/* vfp_save_state oopses on VFP11 if EX bit set */
++	fmxr(FPEXC, fpexc & ~FPEXC_EX);
+ 
+ 	/*
+ 	 * Save the userland NEON/VFP state. Under UP,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0027-i2c-bcm2835-Add-debug-support.patch b/target/linux/bcm27xx/patches-5.10/950-0027-i2c-bcm2835-Add-debug-support.patch
new file mode 100644
index 0000000000..f481af1f9d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0027-i2c-bcm2835-Add-debug-support.patch
@@ -0,0 +1,189 @@
+From ee7f5d2470712e25e2bde81ead7c191a3eff41e2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Tue, 1 Nov 2016 15:15:41 +0100
+Subject: [PATCH] i2c: bcm2835: Add debug support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds a debug module parameter to aid in debugging transfer issues
+by printing info to the kernel log. When enabled, status values are
+collected in the interrupt routine and msg info in
+bcm2835_i2c_start_transfer(). This is done in a way that tries to avoid
+affecting timing. Having printk in the isr can mask issues.
+
+debug values (additive):
+1: Print info on error
+2: Print info on all transfers
+3: Print messages before transfer is started
+
+The value can be changed at runtime:
+/sys/module/i2c_bcm2835/parameters/debug
+
+Example output, debug=3:
+[  747.114448] bcm2835_i2c_xfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
+[  747.114463] bcm2835_i2c_xfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
+[  747.117809] start_transfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
+[  747.117825] isr: remain=2, status=0x30000055 : TA TXW TXD TXE  [i2c1]
+[  747.117839] start_transfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
+[  747.117849] isr: remain=32, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
+[  747.117861] isr: remain=20, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
+[  747.117870] isr: remain=8, status=0x32 : DONE TXD RXD  [i2c1]
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/i2c/busses/i2c-bcm2835.c | 99 +++++++++++++++++++++++++++++++-
+ 1 file changed, 98 insertions(+), 1 deletion(-)
+
+--- a/drivers/i2c/busses/i2c-bcm2835.c
++++ b/drivers/i2c/busses/i2c-bcm2835.c
+@@ -51,6 +51,18 @@
+ #define BCM2835_I2C_CDIV_MIN	0x0002
+ #define BCM2835_I2C_CDIV_MAX	0xFFFE
+ 
++static unsigned int debug;
++module_param(debug, uint, 0644);
++MODULE_PARM_DESC(debug, "1=err, 2=isr, 3=xfer");
++
++#define BCM2835_DEBUG_MAX	512
++struct bcm2835_debug {
++	struct i2c_msg *msg;
++	int msg_idx;
++	size_t remain;
++	u32 status;
++};
++
+ struct bcm2835_i2c_dev {
+ 	struct device *dev;
+ 	void __iomem *regs;
+@@ -63,8 +75,78 @@ struct bcm2835_i2c_dev {
+ 	u32 msg_err;
+ 	u8 *msg_buf;
+ 	size_t msg_buf_remaining;
++	struct bcm2835_debug debug[BCM2835_DEBUG_MAX];
++	unsigned int debug_num;
++	unsigned int debug_num_msgs;
+ };
+ 
++static inline void bcm2835_debug_add(struct bcm2835_i2c_dev *i2c_dev, u32 s)
++{
++	if (!i2c_dev->debug_num_msgs || i2c_dev->debug_num >= BCM2835_DEBUG_MAX)
++		return;
++
++	i2c_dev->debug[i2c_dev->debug_num].msg = i2c_dev->curr_msg;
++	i2c_dev->debug[i2c_dev->debug_num].msg_idx =
++				i2c_dev->debug_num_msgs - i2c_dev->num_msgs;
++	i2c_dev->debug[i2c_dev->debug_num].remain = i2c_dev->msg_buf_remaining;
++	i2c_dev->debug[i2c_dev->debug_num].status = s;
++	i2c_dev->debug_num++;
++}
++
++static void bcm2835_debug_print_status(struct bcm2835_i2c_dev *i2c_dev,
++				       struct bcm2835_debug *d)
++{
++	u32 s = d->status;
++
++	pr_info("isr: remain=%zu, status=0x%x : %s%s%s%s%s%s%s%s%s%s [i2c%d]\n",
++		d->remain, s,
++		s & BCM2835_I2C_S_TA ? "TA " : "",
++		s & BCM2835_I2C_S_DONE ? "DONE " : "",
++		s & BCM2835_I2C_S_TXW ? "TXW " : "",
++		s & BCM2835_I2C_S_RXR ? "RXR " : "",
++		s & BCM2835_I2C_S_TXD ? "TXD " : "",
++		s & BCM2835_I2C_S_RXD ? "RXD " : "",
++		s & BCM2835_I2C_S_TXE ? "TXE " : "",
++		s & BCM2835_I2C_S_RXF ? "RXF " : "",
++		s & BCM2835_I2C_S_ERR ? "ERR " : "",
++		s & BCM2835_I2C_S_CLKT ? "CLKT " : "",
++		i2c_dev->adapter.nr);
++}
++
++static void bcm2835_debug_print_msg(struct bcm2835_i2c_dev *i2c_dev,
++				    struct i2c_msg *msg, int i, int total,
++				    const char *fname)
++{
++	pr_info("%s: msg(%d/%d) %s addr=0x%02x, len=%u flags=%s%s%s%s%s%s%s [i2c%d]\n",
++		fname, i, total,
++		msg->flags & I2C_M_RD ? "read" : "write", msg->addr, msg->len,
++		msg->flags & I2C_M_TEN ? "TEN" : "",
++		msg->flags & I2C_M_RECV_LEN ? "RECV_LEN" : "",
++		msg->flags & I2C_M_NO_RD_ACK ? "NO_RD_ACK" : "",
++		msg->flags & I2C_M_IGNORE_NAK ? "IGNORE_NAK" : "",
++		msg->flags & I2C_M_REV_DIR_ADDR ? "REV_DIR_ADDR" : "",
++		msg->flags & I2C_M_NOSTART ? "NOSTART" : "",
++		msg->flags & I2C_M_STOP ? "STOP" : "",
++		i2c_dev->adapter.nr);
++}
++
++static void bcm2835_debug_print(struct bcm2835_i2c_dev *i2c_dev)
++{
++	struct bcm2835_debug *d;
++	unsigned int i;
++
++	for (i = 0; i < i2c_dev->debug_num; i++) {
++		d = &i2c_dev->debug[i];
++		if (d->status == ~0)
++			bcm2835_debug_print_msg(i2c_dev, d->msg, d->msg_idx,
++				i2c_dev->debug_num_msgs, "start_transfer");
++		else
++			bcm2835_debug_print_status(i2c_dev, d);
++	}
++	if (i2c_dev->debug_num >= BCM2835_DEBUG_MAX)
++		pr_info("BCM2835_DEBUG_MAX reached\n");
++}
++
+ static inline void bcm2835_i2c_writel(struct bcm2835_i2c_dev *i2c_dev,
+ 				      u32 reg, u32 val)
+ {
+@@ -252,6 +334,7 @@ static void bcm2835_i2c_start_transfer(s
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_A, msg->addr);
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_DLEN, msg->len);
+ 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, c);
++	bcm2835_debug_add(i2c_dev, ~0);
+ }
+ 
+ static void bcm2835_i2c_finish_transfer(struct bcm2835_i2c_dev *i2c_dev)
+@@ -278,6 +361,7 @@ static irqreturn_t bcm2835_i2c_isr(int t
+ 	u32 val, err;
+ 
+ 	val = bcm2835_i2c_readl(i2c_dev, BCM2835_I2C_S);
++	bcm2835_debug_add(i2c_dev, val);
+ 
+ 	err = val & (BCM2835_I2C_S_CLKT | BCM2835_I2C_S_ERR);
+ 	if (err) {
+@@ -344,6 +428,13 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 	unsigned long time_left;
+ 	int i;
+ 
++	if (debug)
++		i2c_dev->debug_num_msgs = num;
++
++	if (debug > 2)
++		for (i = 0; i < num; i++)
++			bcm2835_debug_print_msg(i2c_dev, &msgs[i], i + 1, num, __func__);
++
+ 	for (i = 0; i < (num - 1); i++)
+ 		if (msgs[i].flags & I2C_M_RD) {
+ 			dev_warn_once(i2c_dev->dev,
+@@ -362,6 +453,10 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 
+ 	bcm2835_i2c_finish_transfer(i2c_dev);
+ 
++	if (debug > 1 || (debug && (!time_left || i2c_dev->msg_err)))
++		bcm2835_debug_print(i2c_dev);
++	i2c_dev->debug_num_msgs = 0;
++	i2c_dev->debug_num = 0;
+ 	if (!time_left) {
+ 		bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C,
+ 				   BCM2835_I2C_C_CLEAR);
+@@ -372,7 +467,9 @@ static int bcm2835_i2c_xfer(struct i2c_a
+ 	if (!i2c_dev->msg_err)
+ 		return num;
+ 
+-	dev_dbg(i2c_dev->dev, "i2c transfer failed: %x\n", i2c_dev->msg_err);
++	if (debug)
++		dev_err(i2c_dev->dev, "i2c transfer failed: %x\n",
++			i2c_dev->msg_err);
+ 
+ 	if (i2c_dev->msg_err & BCM2835_I2C_S_ERR)
+ 		return -EREMOTEIO;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0028-mm-Remove-the-PFN-busy-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0028-mm-Remove-the-PFN-busy-warning.patch
new file mode 100644
index 0000000000..6d12c3f308
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0028-mm-Remove-the-PFN-busy-warning.patch
@@ -0,0 +1,25 @@
+From a432a3f7142e7e76fd1708debe509ffbea3a3658 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 18 Dec 2014 16:07:15 -0800
+Subject: [PATCH] mm: Remove the PFN busy warning
+
+See commit dae803e165a11bc88ca8dbc07a11077caf97bbcb -- the warning is
+expected sometimes when using CMA.  However, that commit still spams
+my kernel log with these warnings.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ mm/page_alloc.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -8594,8 +8594,6 @@ int alloc_contig_range(unsigned long sta
+ 
+ 	/* Make sure the range is really isolated. */
+ 	if (test_pages_isolated(outer_start, end, 0)) {
+-		pr_info_ratelimited("%s: [%lx, %lx) PFNs busy\n",
+-			__func__, outer_start, end);
+ 		ret = -EBUSY;
+ 		goto done;
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0029-irqchip-irq-bcm2836-Remove-regmap-and-syscon-use.patch b/target/linux/bcm27xx/patches-5.10/950-0029-irqchip-irq-bcm2836-Remove-regmap-and-syscon-use.patch
new file mode 100644
index 0000000000..73866d6f54
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0029-irqchip-irq-bcm2836-Remove-regmap-and-syscon-use.patch
@@ -0,0 +1,112 @@
+From 9ab633ec6dd4bb60c13486c8474cf30045c0a422 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 23 Jan 2018 16:52:45 +0000
+Subject: [PATCH] irqchip: irq-bcm2836: Remove regmap and syscon use
+
+The syscon node defines a register range that duplicates that used by
+the local_intc node on bcm2836/7. Since irq-bcm2835 and irq-bcm2836 are
+built in and always present together (both drivers are enabled by
+CONFIG_ARCH_BCM2835), it is possible to replace the syscon usage with a
+global variable that simplifies the code. Doing so does lose the
+locking provided by regmap, but as only one side is using the regmap
+interface (irq-bcm2835 uses readl and write) there is no loss of
+atomicity.
+
+See: https://github.com/raspberrypi/firmware/issues/926
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 32 ++++++++++++--------------------
+ drivers/irqchip/irq-bcm2836.c |  5 +++++
+ 2 files changed, 17 insertions(+), 20 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -41,8 +41,6 @@
+ #include <linux/of_irq.h>
+ #include <linux/irqchip.h>
+ #include <linux/irqdomain.h>
+-#include <linux/mfd/syscon.h>
+-#include <linux/regmap.h>
+ 
+ #include <asm/exception.h>
+ #include <asm/mach/irq.h>
+@@ -92,7 +90,7 @@ struct armctrl_ic {
+ 	void __iomem *enable[NR_BANKS];
+ 	void __iomem *disable[NR_BANKS];
+ 	struct irq_domain *domain;
+-	struct regmap *local_regmap;
++	void __iomem *local_base;
+ };
+ 
+ static struct armctrl_ic intc __read_mostly;
+@@ -129,24 +127,20 @@ static void armctrl_unmask_irq(struct ir
+ 	if (d->hwirq >= NUMBER_IRQS) {
+ 		if (num_online_cpus() > 1) {
+ 			unsigned int data;
+-			int ret;
+ 
+-			if (!intc.local_regmap) {
+-				pr_err("FIQ is disabled due to missing regmap\n");
++			if (!intc.local_base) {
++				pr_err("FIQ is disabled due to missing arm_local_intc\n");
+ 				return;
+ 			}
+ 
+-			ret = regmap_read(intc.local_regmap,
+-					  ARM_LOCAL_GPU_INT_ROUTING, &data);
+-			if (ret) {
+-				pr_err("Failed to read int routing %d\n", ret);
+-				return;
+-			}
++			data = readl_relaxed(intc.local_base +
++					     ARM_LOCAL_GPU_INT_ROUTING);
+ 
+ 			data &= ~0xc;
+ 			data |= (1 << 2);
+-			regmap_write(intc.local_regmap,
+-				     ARM_LOCAL_GPU_INT_ROUTING, data);
++			writel_relaxed(data,
++				       intc.local_base +
++				       ARM_LOCAL_GPU_INT_ROUTING);
+ 		}
+ 
+ 		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
+@@ -246,12 +240,10 @@ static int __init armctrl_of_init(struct
+ 	}
+ 
+ 	if (is_2836) {
+-		intc.local_regmap =
+-			syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local");
+-		if (IS_ERR(intc.local_regmap)) {
+-			pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n");
+-			intc.local_regmap = NULL;
+-		}
++		extern void __iomem * __attribute__((weak)) arm_local_intc;
++		intc.local_base = arm_local_intc;
++		if (!intc.local_base)
++			pr_err("Failed to get local intc base. FIQ is disabled for cpus > 1\n");
+ 	}
+ 
+ 	/* Make a duplicate irq range which is used to enable FIQ */
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -22,6 +22,9 @@ struct bcm2836_arm_irqchip_intc {
+ 
+ static struct bcm2836_arm_irqchip_intc intc  __read_mostly;
+ 
++void __iomem *arm_local_intc;
++EXPORT_SYMBOL_GPL(arm_local_intc);
++
+ static void bcm2836_arm_irqchip_mask_per_cpu_irq(unsigned int reg_offset,
+ 						 unsigned int bit,
+ 						 int cpu)
+@@ -323,6 +326,8 @@ static int __init bcm2836_arm_irqchip_l1
+ 		panic("%pOF: unable to map local interrupt registers\n", node);
+ 	}
+ 
++	arm_local_intc = intc.base;
++
+ 	bcm2835_init_local_timer_frequency();
+ 
+ 	intc.domain = irq_domain_add_linear(node, LAST_IRQ + 1,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0030-lan78xx-Enable-LEDs-and-auto-negotiation.patch b/target/linux/bcm27xx/patches-5.10/950-0030-lan78xx-Enable-LEDs-and-auto-negotiation.patch
new file mode 100644
index 0000000000..56f54587a1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0030-lan78xx-Enable-LEDs-and-auto-negotiation.patch
@@ -0,0 +1,48 @@
+From 021908b753875198daddfa9e77a0d2fd8004a469 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 17 Oct 2017 15:04:29 +0100
+Subject: [PATCH] lan78xx: Enable LEDs and auto-negotiation
+
+For applications of the LAN78xx that don't have valid programmed
+EEPROMs or OTPs, enabling both LEDs and auto-negotiation by default
+seems reasonable.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2453,6 +2453,11 @@ static int lan78xx_reset(struct lan78xx_
+ 	int ret = 0;
+ 	unsigned long timeout;
+ 	u8 sig;
++	bool has_eeprom;
++	bool has_otp;
++
++	has_eeprom = !lan78xx_read_eeprom(dev, 0, 0, NULL);
++	has_otp = !lan78xx_read_otp(dev, 0, 0, NULL);
+ 
+ 	ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ 	buf |= HW_CFG_LRST_;
+@@ -2506,6 +2511,9 @@ static int lan78xx_reset(struct lan78xx_
+ 
+ 	ret = lan78xx_read_reg(dev, HW_CFG, &buf);
+ 	buf |= HW_CFG_MEF_;
++	/* If no valid EEPROM and no valid OTP, enable the LEDs by default */
++	if (!has_eeprom && !has_otp)
++	    buf |= HW_CFG_LED0_EN_ | HW_CFG_LED1_EN_;
+ 	ret = lan78xx_write_reg(dev, HW_CFG, buf);
+ 
+ 	ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
+@@ -2561,6 +2569,9 @@ static int lan78xx_reset(struct lan78xx_
+ 			buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+ 		}
+ 	}
++	/* If no valid EEPROM and no valid OTP, enable AUTO negotiation */
++	if (!has_eeprom && !has_otp)
++	    buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+ 	ret = lan78xx_write_reg(dev, MAC_CR, buf);
+ 
+ 	ret = lan78xx_read_reg(dev, MAC_TX, &buf);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0031-amba_pl011-Don-t-use-DT-aliases-for-numbering.patch b/target/linux/bcm27xx/patches-5.10/950-0031-amba_pl011-Don-t-use-DT-aliases-for-numbering.patch
new file mode 100644
index 0000000000..ffd59bc969
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0031-amba_pl011-Don-t-use-DT-aliases-for-numbering.patch
@@ -0,0 +1,29 @@
+From a79b4327445a827be28b9939592da8e812a19b29 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 23 Feb 2016 17:26:48 +0000
+Subject: [PATCH] amba_pl011: Don't use DT aliases for numbering
+
+The pl011 driver looks for DT aliases of the form "serial<n>",
+and if found uses <n> as the device ID. This can cause
+/dev/ttyAMA0 to become /dev/ttyAMA1, which is confusing if the
+other serial port is provided by the 8250 driver which doesn't
+use the same logic.
+---
+ drivers/tty/serial/amba-pl011.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -2599,7 +2599,12 @@ static int pl011_setup_port(struct devic
+ 	if (IS_ERR(base))
+ 		return PTR_ERR(base);
+ 
++	/* Don't use DT serial<n> aliases - it causes the device to
++	   be renumbered to ttyAMA1 if it is the second serial port in the
++	   system, even though the other one is ttyS0. The 8250 driver
++	   doesn't use this logic, so always remains ttyS0.
+ 	index = pl011_probe_dt_alias(index, dev);
++	*/
+ 
+ 	uap->old_cr = 0;
+ 	uap->port.dev = dev;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0032-amba_pl011-Round-input-clock-up.patch b/target/linux/bcm27xx/patches-5.10/950-0032-amba_pl011-Round-input-clock-up.patch
new file mode 100644
index 0000000000..9a9b345b67
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0032-amba_pl011-Round-input-clock-up.patch
@@ -0,0 +1,86 @@
+From e3f28ae66fd94f4a7a10099a96d6dd5273904943 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 1 Mar 2017 16:07:39 +0000
+Subject: [PATCH] amba_pl011: Round input clock up
+
+The UART clock is initialised to be as close to the requested
+frequency as possible without exceeding it. Now that there is a
+clock manager that returns the actual frequencies, an expected
+48MHz clock is reported as 47999625. If the requested baudrate
+== requested clock/16, there is no headroom and the slight
+reduction in actual clock rate results in failure.
+
+Detect cases where it looks like a "round" clock was chosen and
+adjust the reported clock to match that "round" value. As the
+code comment says:
+
+/*
+ * If increasing a clock by less than 0.1% changes it
+ * from ..999.. to ..000.., round up.
+ */
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 23 +++++++++++++++++++++--
+ 1 file changed, 21 insertions(+), 2 deletions(-)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1642,6 +1642,23 @@ static void pl011_put_poll_char(struct u
+ 
+ #endif /* CONFIG_CONSOLE_POLL */
+ 
++unsigned long pl011_clk_round(unsigned long clk)
++{
++	unsigned long scaler;
++
++	/*
++	 * If increasing a clock by less than 0.1% changes it
++	 * from ..999.. to ..000.., round up.
++	 */
++	scaler = 1;
++	while (scaler * 100000 < clk)
++		scaler *= 10;
++	if ((clk + scaler - 1)/scaler % 1000 == 0)
++		clk = (clk/scaler + 1) * scaler;
++
++	return clk;
++}
++
+ static int pl011_hwinit(struct uart_port *port)
+ {
+ 	struct uart_amba_port *uap =
+@@ -1658,7 +1675,7 @@ static int pl011_hwinit(struct uart_port
+ 	if (retval)
+ 		return retval;
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	/* Clear pending error and receive interrupts */
+ 	pl011_write(UART011_OEIS | UART011_BEIS | UART011_PEIS |
+@@ -2313,7 +2330,7 @@ static int pl011_console_setup(struct co
+ 			plat->init();
+ 	}
+ 
+-	uap->port.uartclk = clk_get_rate(uap->clk);
++	uap->port.uartclk = pl011_clk_round(clk_get_rate(uap->clk));
+ 
+ 	if (uap->vendor->fixed_options) {
+ 		baud = uap->fixed_baud;
+@@ -2530,6 +2547,7 @@ static struct uart_driver amba_reg = {
+ 	.cons			= AMBA_CONSOLE,
+ };
+ 
++#if 0
+ static int pl011_probe_dt_alias(int index, struct device *dev)
+ {
+ 	struct device_node *np;
+@@ -2561,6 +2579,7 @@ static int pl011_probe_dt_alias(int inde
+ 
+ 	return ret;
+ }
++#endif
+ 
+ /* unregisters the driver also if no more ports are left */
+ static void pl011_unregister_port(struct uart_amba_port *uap)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0033-amba_pl011-Insert-mb-for-correct-FIFO-handling.patch b/target/linux/bcm27xx/patches-5.10/950-0033-amba_pl011-Insert-mb-for-correct-FIFO-handling.patch
new file mode 100644
index 0000000000..8a341f2a0c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0033-amba_pl011-Insert-mb-for-correct-FIFO-handling.patch
@@ -0,0 +1,27 @@
+From f44d321993ccf1707f5774dc443b900adae5d9d5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 29 Sep 2017 10:32:19 +0100
+Subject: [PATCH] amba_pl011: Insert mb() for correct FIFO handling
+
+The pl011 register accessor functions use the _relaxed versions of the
+standard readl() and writel() functions, meaning that there are no
+automatic memory barriers. When polling a FIFO status register to check
+for fullness, it is necessary to ensure that any outstanding writes have
+completed; otherwise the flags are effectively stale, making it possible
+that the next write is to a full FIFO.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1377,6 +1377,7 @@ static bool pl011_tx_char(struct uart_am
+ 		return false; /* unable to transmit character */
+ 
+ 	pl011_write(c, uap, REG_DR);
++	mb();
+ 	uap->port.icount.tx++;
+ 
+ 	return true;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0034-amba_pl011-Add-cts-event-workaround-DT-property.patch b/target/linux/bcm27xx/patches-5.10/950-0034-amba_pl011-Add-cts-event-workaround-DT-property.patch
new file mode 100644
index 0000000000..08ce5b4bf6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0034-amba_pl011-Add-cts-event-workaround-DT-property.patch
@@ -0,0 +1,50 @@
+From 8ccf96729972504acf4ca0e1868278ba549e0f5a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 29 Sep 2017 10:32:19 +0100
+Subject: [PATCH] amba_pl011: Add cts-event-workaround DT property
+
+The BCM2835 PL011 implementation seems to have a bug that can lead to a
+transmission lockup if CTS changes frequently. A workaround was added to
+the driver with a vendor-specific flag to enable it, but this flag is
+currently not set for ARM implementations.
+
+Add a "cts-event-workaround" property to Pi DTBs and use the presence
+of that property to force the flag to be enabled in the driver.
+
+See: https://github.com/raspberrypi/linux/issues/1280
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ Documentation/devicetree/bindings/serial/pl011.yaml | 6 ++++++
+ drivers/tty/serial/amba-pl011.c                     | 5 +++++
+ 2 files changed, 11 insertions(+)
+
+--- a/Documentation/devicetree/bindings/serial/pl011.yaml
++++ b/Documentation/devicetree/bindings/serial/pl011.yaml
+@@ -98,6 +98,12 @@ properties:
+     $ref: /schemas/types.yaml#/definitions/uint32
+     default: 3000
+ 
++  cts-event-workaround:
++    description:
++      Enables the (otherwise vendor-specific) workaround for the
++      CTS-induced TX lockup.
++    type: boolean
++
+ required:
+   - compatible
+   - reg
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -2686,6 +2686,11 @@ static int pl011_probe(struct amba_devic
+ 	if (IS_ERR(uap->clk))
+ 		return PTR_ERR(uap->clk);
+ 
++	if (of_property_read_bool(dev->dev.of_node, "cts-event-workaround")) {
++	    vendor->cts_event_workaround = true;
++	    dev_info(&dev->dev, "cts_event_workaround enabled\n");
++	}
++
+ 	uap->reg_offset = vendor->reg_offset;
+ 	uap->vendor = vendor;
+ 	uap->fifosize = vendor->get_fifosize(dev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0035-tty-amba-pl011-Make-TX-optimisation-conditional.patch b/target/linux/bcm27xx/patches-5.10/950-0035-tty-amba-pl011-Make-TX-optimisation-conditional.patch
new file mode 100644
index 0000000000..f7316fb3e6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0035-tty-amba-pl011-Make-TX-optimisation-conditional.patch
@@ -0,0 +1,85 @@
+From 28c2408f991d97de5e3d1da9711cf5486f411d02 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 11 Jul 2019 13:13:39 +0100
+Subject: [PATCH] tty: amba-pl011: Make TX optimisation conditional
+
+pl011_tx_chars takes a "from_irq" parameter to reduce the number of
+register accesses. When from_irq is true the function assumes that the
+FIFO is half empty and writes up to half a FIFO's worth of bytes
+without polling the FIFO status register, the reasoning being that
+the function is being called as a result of the TX interrupt being
+raised. This logic would work were it not for the fact that
+pl011_rx_chars, called from pl011_int before pl011_tx_chars, releases
+the spinlock before calling tty_flip_buffer_push.
+
+A user thread writing to the UART claims the spinlock and ultimately
+calls pl011_tx_chars with from_irq set to false. This reverts to the
+older logic that polls the FIFO status register before sending every
+byte. If this happen on an SMP system during the section of the IRQ
+handler where the spinlock has been released, then by the time the TX
+interrupt handler is called, the FIFO may already be full, and any
+further writes are likely to be lost.
+
+The fix involves adding a per-port flag that is true iff running from
+within the interrupt handler and the spinlock has not yet been released.
+This flag is then used as the value for the from_irq parameter of
+pl011_tx_chars, causing polling to be used in the unsafe case.
+
+Fixes: 1e84d22322ce ("serial/amba-pl011: Refactor and simplify TX FIFO handling")
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -265,6 +265,7 @@ struct uart_amba_port {
+ 	unsigned int		old_cr;		/* state during shutdown */
+ 	unsigned int		fixed_baud;	/* vendor-set fixed baud rate */
+ 	char			type[12];
++	bool			irq_locked;	/* in irq, unreleased lock */
+ #ifdef CONFIG_DMA_ENGINE
+ 	/* DMA stuff */
+ 	bool			using_tx_dma;
+@@ -811,6 +812,7 @@ __acquires(&uap->port.lock)
+ 	if (!uap->using_tx_dma)
+ 		return;
+ 
++	uap->irq_locked = 0;
+ 	dmaengine_terminate_async(uap->dmatx.chan);
+ 
+ 	if (uap->dmatx.queued) {
+@@ -937,6 +939,7 @@ static void pl011_dma_rx_chars(struct ua
+ 		fifotaken = pl011_fifo_to_tty(uap);
+ 	}
+ 
++	uap->irq_locked = 0;
+ 	spin_unlock(&uap->port.lock);
+ 	dev_vdbg(uap->port.dev,
+ 		 "Took %d chars from DMA buffer and %d chars from the FIFO\n",
+@@ -1341,6 +1344,7 @@ __acquires(&uap->port.lock)
+ {
+ 	pl011_fifo_to_tty(uap);
+ 
++	uap->irq_locked = 0;
+ 	spin_unlock(&uap->port.lock);
+ 	tty_flip_buffer_push(&uap->port.state->port);
+ 	/*
+@@ -1474,6 +1478,7 @@ static irqreturn_t pl011_int(int irq, vo
+ 	int handled = 0;
+ 
+ 	spin_lock_irqsave(&uap->port.lock, flags);
++	uap->irq_locked = 1;
+ 	status = pl011_read(uap, REG_RIS) & uap->im;
+ 	if (status) {
+ 		do {
+@@ -1493,7 +1498,7 @@ static irqreturn_t pl011_int(int irq, vo
+ 				      UART011_CTSMIS|UART011_RIMIS))
+ 				pl011_modem_status(uap);
+ 			if (status & UART011_TXIS)
+-				pl011_tx_chars(uap, true);
++				pl011_tx_chars(uap, uap->irq_locked);
+ 
+ 			if (pass_counter-- == 0)
+ 				break;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0036-tty-amba-pl011-Add-un-throttle-support.patch b/target/linux/bcm27xx/patches-5.10/950-0036-tty-amba-pl011-Add-un-throttle-support.patch
new file mode 100644
index 0000000000..35d0aba042
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0036-tty-amba-pl011-Add-un-throttle-support.patch
@@ -0,0 +1,61 @@
+From 3cec61f1b19a6f589f8b2aef97977e1c38eb7b70 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 24 Jan 2020 11:38:28 +0000
+Subject: [PATCH] tty: amba-pl011: Add un/throttle support
+
+The PL011 driver lacks throttle and unthrottle methods. As a result,
+sending more data to the Pi than it can immediately sink while CRTSCTS
+is enabled causes a NULL pointer to be followed.
+
+Add a throttle handler that disables the RX interrupts, and an
+unthrottle handler that reenables them.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1317,6 +1317,32 @@ static void pl011_start_tx(struct uart_p
+ 		pl011_start_tx_pio(uap);
+ }
+ 
++static void pl011_throttle(struct uart_port *port)
++{
++	struct uart_amba_port *uap =
++	    container_of(port, struct uart_amba_port, port);
++	unsigned long flags;
++
++	spin_lock_irqsave(&uap->port.lock, flags);
++	uap->im &= ~(UART011_RTIM | UART011_RXIM);
++	pl011_write(uap->im, uap, REG_IMSC);
++	spin_unlock_irqrestore(&uap->port.lock, flags);
++}
++
++static void pl011_unthrottle(struct uart_port *port)
++{
++	struct uart_amba_port *uap =
++	    container_of(port, struct uart_amba_port, port);
++	unsigned long flags;
++
++	spin_lock_irqsave(&uap->port.lock, flags);
++	uap->im |= UART011_RTIM;
++	if (!pl011_dma_rx_running(uap))
++	    uap->im |= UART011_RXIM;
++	pl011_write(uap->im, uap, REG_IMSC);
++	spin_unlock_irqrestore(&uap->port.lock, flags);
++}
++
+ static void pl011_stop_rx(struct uart_port *port)
+ {
+ 	struct uart_amba_port *uap =
+@@ -2156,6 +2182,8 @@ static const struct uart_ops amba_pl011_
+ 	.stop_tx	= pl011_stop_tx,
+ 	.start_tx	= pl011_start_tx,
+ 	.stop_rx	= pl011_stop_rx,
++	.throttle	= pl011_throttle,
++	.unthrottle	= pl011_unthrottle,
+ 	.enable_ms	= pl011_enable_ms,
+ 	.break_ctl	= pl011_break_ctl,
+ 	.startup	= pl011_startup,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0037-tty-amba-pl011-Avoid-rare-write-when-full-error.patch b/target/linux/bcm27xx/patches-5.10/950-0037-tty-amba-pl011-Avoid-rare-write-when-full-error.patch
new file mode 100644
index 0000000000..8d0ec37042
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0037-tty-amba-pl011-Avoid-rare-write-when-full-error.patch
@@ -0,0 +1,42 @@
+From e9addfee683ceabeae5da9dc5503fef536f7385a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 29 Jan 2020 09:35:19 +0000
+Subject: [PATCH] tty: amba-pl011: Avoid rare write-when-full error
+
+Under some circumstances on BCM283x processors data loss can be
+observed - a single byte missing from the TX output stream. These bytes
+are always the last byte of a batch of 8 written from pl011_tx_chars
+when from_irq is true, meaning that the FIFO full flag is not checked
+before writing.
+
+The transmit optimisation relies on the FIFO being half-empty when the
+TX interrupt is raised. Instrumenting the driver further showed that
+the failure case correlated with the TX FIFO full flag being set at the
+point where the last byte was written to the data register, which
+explains the data loss but not how the FIFO appeared to be prematurely
+full. A possible explanation is that a FIFO write was in flight at the
+time the interrupt was raised, but as yet there is no hypothesis as to
+how this might occur.
+
+In the absence of a clear understanding of the failure mechanism, avoid
+the problem by checking the FIFO levels before writing the last byte of
+the group, which will have minimal performance impact.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/amba-pl011.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/tty/serial/amba-pl011.c
++++ b/drivers/tty/serial/amba-pl011.c
+@@ -1438,6 +1438,10 @@ static bool pl011_tx_chars(struct uart_a
+ 		if (likely(from_irq) && count-- == 0)
+ 			break;
+ 
++		if (likely(from_irq) && count == 0 &&
++		    pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
++			break;
++
+ 		if (!pl011_tx_char(uap, xmit->buf[xmit->tail], from_irq))
+ 			break;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0038-pinctrl-bcm2835-Set-base-to-0-give-expected-gpio-num.patch b/target/linux/bcm27xx/patches-5.10/950-0038-pinctrl-bcm2835-Set-base-to-0-give-expected-gpio-num.patch
new file mode 100644
index 0000000000..d8bb4c1f73
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0038-pinctrl-bcm2835-Set-base-to-0-give-expected-gpio-num.patch
@@ -0,0 +1,22 @@
+From 68ef623a719071e05f5d62270c7bee35a2984452 Mon Sep 17 00:00:00 2001
+From: notro <notro@tronnes.org>
+Date: Thu, 10 Jul 2014 13:59:47 +0200
+Subject: [PATCH] pinctrl-bcm2835: Set base to 0 give expected gpio
+ numbering
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -362,7 +362,7 @@ static const struct gpio_chip bcm2835_gp
+ 	.get = bcm2835_gpio_get,
+ 	.set = bcm2835_gpio_set,
+ 	.set_config = gpiochip_generic_config,
+-	.base = -1,
++	.base = 0,
+ 	.ngpio = BCM2835_NUM_GPIOS,
+ 	.can_sleep = false,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0039-Main-bcm2708-bcm2709-linux-port.patch b/target/linux/bcm27xx/patches-5.10/950-0039-Main-bcm2708-bcm2709-linux-port.patch
new file mode 100644
index 0000000000..ec4df9cbae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0039-Main-bcm2708-bcm2709-linux-port.patch
@@ -0,0 +1,150 @@
+From 0ef60858b9927024cd310038c97976e27e4daada Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Sun, 12 May 2013 12:24:19 +0100
+Subject: [PATCH] Main bcm2708/bcm2709 linux port
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2709: Drop platform smp and timer init code
+
+irq-bcm2836 handles this through these functions:
+bcm2835_init_local_timer_frequency()
+bcm2836_arm_irqchip_smp_init()
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm270x: Use watchdog for reboot/poweroff
+
+The watchdog driver already has support for reboot/poweroff.
+Make use of this and remove the code from the platform files.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+board_bcm2835: Remove coherent dma pool increase - API has gone
+---
+ arch/arm/mach-bcm/Kconfig         |  1 +
+ arch/arm/mm/proc-v6.S             | 15 ++++++++++++---
+ drivers/irqchip/irq-bcm2835.c     |  7 ++++++-
+ drivers/mailbox/bcm2835-mailbox.c | 18 ++++++++++++++++--
+ 4 files changed, 35 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -165,6 +165,7 @@ config ARCH_BCM2835
+ 	select PINCTRL
+ 	select PINCTRL_BCM2835
+ 	select MFD_CORE
++	select MFD_SYSCON if ARCH_MULTI_V7
+ 	help
+ 	  This enables support for the Broadcom BCM2711 and BCM283x SoCs.
+ 	  This SoC is used in the Raspberry Pi and Roku 2 devices.
+--- a/arch/arm/mm/proc-v6.S
++++ b/arch/arm/mm/proc-v6.S
+@@ -70,10 +70,19 @@ ENDPROC(cpu_v6_reset)
+  *
+  *	IRQs are already disabled.
+  */
++
++/* See jira SW-5991 for details of this workaround */
+ ENTRY(cpu_v6_do_idle)
+-	mov	r1, #0
+-	mcr	p15, 0, r1, c7, c10, 4		@ DWB - WFI may enter a low-power mode
+-	mcr	p15, 0, r1, c7, c0, 4		@ wait for interrupt
++	.align 5
++	mov     r1, #2
++1:	subs	r1, #1
++	nop
++	mcreq	p15, 0, r1, c7, c10, 4		@ DWB - WFI may enter a low-power mode
++	mcreq	p15, 0, r1, c7, c0, 4		@ wait for interrupt
++	nop
++	nop
++	nop
++	bne 1b
+ 	ret	lr
+ 
+ ENTRY(cpu_v6_dcache_clean_area)
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -43,7 +43,9 @@
+ #include <linux/irqdomain.h>
+ 
+ #include <asm/exception.h>
++#ifndef CONFIG_ARM64
+ #include <asm/mach/irq.h>
++#endif
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+ #define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+@@ -72,6 +74,7 @@
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
+ #define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
++#undef FIQ_START
+ #define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+@@ -253,10 +256,12 @@ static int __init armctrl_of_init(struct
+ 					MAKE_HWIRQ(b, i) + NUMBER_IRQS);
+ 			BUG_ON(irq <= 0);
+ 			irq_set_chip(irq, &armctrl_chip);
+-			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
++			irq_set_probe(irq);
+ 		}
+ 	}
++#ifndef CONFIG_ARM64
+ 	init_FIQ(FIQ_START);
++#endif
+ 
+ 	return 0;
+ }
+--- a/drivers/mailbox/bcm2835-mailbox.c
++++ b/drivers/mailbox/bcm2835-mailbox.c
+@@ -45,12 +45,15 @@
+ #define MAIL1_WRT	(ARM_0_MAIL1 + 0x00)
+ #define MAIL1_STA	(ARM_0_MAIL1 + 0x18)
+ 
++/* On ARCH_BCM270x these come through <linux/interrupt.h> (arm_control.h ) */
++#ifndef ARM_MS_FULL
+ /* Status register: FIFO state. */
+ #define ARM_MS_FULL		BIT(31)
+ #define ARM_MS_EMPTY		BIT(30)
+ 
+ /* Configuration register: Enable interrupts. */
+ #define ARM_MC_IHAVEDATAIRQEN	BIT(0)
++#endif
+ 
+ struct bcm2835_mbox {
+ 	void __iomem *regs;
+@@ -145,7 +148,7 @@ static int bcm2835_mbox_probe(struct pla
+ 		return -ENOMEM;
+ 	spin_lock_init(&mbox->lock);
+ 
+-	ret = devm_request_irq(dev, irq_of_parse_and_map(dev->of_node, 0),
++	ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
+ 			       bcm2835_mbox_irq, 0, dev_name(dev), mbox);
+ 	if (ret) {
+ 		dev_err(dev, "Failed to register a mailbox IRQ handler: %d\n",
+@@ -195,7 +198,18 @@ static struct platform_driver bcm2835_mb
+ 	},
+ 	.probe		= bcm2835_mbox_probe,
+ };
+-module_platform_driver(bcm2835_mbox_driver);
++
++static int __init bcm2835_mbox_init(void)
++{
++	return platform_driver_register(&bcm2835_mbox_driver);
++}
++arch_initcall(bcm2835_mbox_init);
++
++static void __init bcm2835_mbox_exit(void)
++{
++	platform_driver_unregister(&bcm2835_mbox_driver);
++}
++module_exit(bcm2835_mbox_exit);
+ 
+ MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>");
+ MODULE_DESCRIPTION("BCM2835 mailbox IPC driver");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0040-Add-dwc_otg-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0040-Add-dwc_otg-driver.patch
new file mode 100644
index 0000000000..754dd45aa5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0040-Add-dwc_otg-driver.patch
@@ -0,0 +1,61618 @@
+From 8c7c80cd6068b80a4bde7276ff79964de48d4ed0 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 1 May 2013 19:46:17 +0100
+Subject: [PATCH] Add dwc_otg driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+usb: dwc: fix lockdep false positive
+
+Signed-off-by: Kari Suvanto <karis79@gmail.com>
+
+usb: dwc: fix inconsistent lock state
+
+Signed-off-by: Kari Suvanto <karis79@gmail.com>
+
+Add FIQ patch to dwc_otg driver. Enable with dwc_otg.fiq_fix_enable=1. Should give about 10% more ARM performance.
+Thanks to Gordon and Costas
+
+Avoid dynamic memory allocation for channel lock in USB driver. Thanks ddv2005.
+
+Add NAK holdoff scheme. Enabled by default, disable with dwc_otg.nak_holdoff_enable=0. Thanks gsh
+
+Make sure we wait for the reset to finish
+
+dwc_otg: fix bug in dwc_otg_hcd.c resulting in silent kernel
+	 memory corruption, escalating to OOPS under high USB load.
+
+dwc_otg: Fix unsafe access of QTD during URB enqueue
+
+In dwc_otg_hcd_urb_enqueue during qtd creation, it was possible that the
+transaction could complete almost immediately after the qtd was assigned
+to a host channel during URB enqueue, which meant the qtd pointer was no
+longer valid having been completed and removed. Usually, this resulted in
+an OOPS during URB submission. By predetermining whether transactions
+need to be queued or not, this unsafe pointer access is avoided.
+
+This bug was only evident on the Pi model A where a device was attached
+that had no periodic endpoints (e.g. USB pendrive or some wlan devices).
+
+dwc_otg: Fix incorrect URB allocation error handling
+
+If the memory allocation for a dwc_otg_urb failed, the kernel would OOPS
+because for some reason a member of the *unallocated* struct was set to
+zero. Error handling changed to fail correctly.
+
+dwc_otg: fix potential use-after-free case in interrupt handler
+
+If a transaction had previously aborted, certain interrupts are
+enabled to track error counts and reset where necessary. On IN
+endpoints the host generates an ACK interrupt near-simultaneously
+with completion of transfer. In the case where this transfer had
+previously had an error, this results in a use-after-free on
+the QTD memory space with a 1-byte length being overwritten to
+0x00.
+
+dwc_otg: add handling of SPLIT transaction data toggle errors
+
+Previously a data toggle error on packets from a USB1.1 device behind
+a TT would result in the Pi locking up as the driver never handled
+the associated interrupt. Patch adds basic retry mechanism and
+interrupt acknowledgement to cater for either a chance toggle error or
+for devices that have a broken initial toggle state (FT8U232/FT232BM).
+
+dwc_otg: implement tasklet for returning URBs to usbcore hcd layer
+
+The dwc_otg driver interrupt handler for transfer completion will spend
+a very long time with interrupts disabled when a URB is completed -
+this is because usb_hcd_giveback_urb is called from within the handler
+which for a USB device driver with complicated processing (e.g. webcam)
+will take an exorbitant amount of time to complete. This results in
+missed completion interrupts for other USB packets which lead to them
+being dropped due to microframe overruns.
+
+This patch splits returning the URB to the usb hcd layer into a
+high-priority tasklet. This will have most benefit for isochronous IN
+transfers but will also have incidental benefit where multiple periodic
+devices are active at once.
+
+dwc_otg: fix NAK holdoff and allow on split transactions only
+
+This corrects a bug where if a single active non-periodic endpoint
+had at least one transaction in its qh, on frnum == MAX_FRNUM the qh
+would get skipped and never get queued again. This would result in
+a silent device until error detection (automatic or otherwise) would
+either reset the device or flush and requeue the URBs.
+
+Additionally the NAK holdoff was enabled for all transactions - this
+would potentially stall a HS endpoint for 1ms if a previous error state
+enabled this interrupt and the next response was a NAK. Fix so that
+only split transactions get held off.
+
+dwc_otg: Call usb_hcd_unlink_urb_from_ep with lock held in completion handler
+
+usb_hcd_unlink_urb_from_ep must be called with the HCD lock held.  Calling it
+asynchronously in the tasklet was not safe (regression in
+c4564d4a1a0a9b10d4419e48239f5d99e88d2667).
+
+This change unlinks it from the endpoint prior to queueing it for handling in
+the tasklet, and also adds a check to ensure the urb is OK to be unlinked
+before doing so.
+
+NULL pointer dereference kernel oopses had been observed in usb_hcd_giveback_urb
+when a USB device was unplugged/replugged during data transfer.  This effect
+was reproduced using automated USB port power control, hundreds of replug
+events were performed during active transfers to confirm that the problem was
+eliminated.
+
+USB fix using a FIQ to implement split transactions
+
+This commit adds a FIQ implementaion that schedules
+the split transactions using a FIQ so we don't get
+held off by the interrupt latency of Linux
+
+dwc_otg: fix device attributes and avoid kernel warnings on boot
+
+dcw_otg: avoid logging function that can cause panics
+
+See: https://github.com/raspberrypi/firmware/issues/21
+Thanks to cleverca22 for fix
+
+dwc_otg: mask correct interrupts after transaction error recovery
+
+The dwc_otg driver will unmask certain interrupts on a transaction
+that previously halted in the error state in order to reset the
+QTD error count. The various fine-grained interrupt handlers do not
+consider that other interrupts besides themselves were unmasked.
+
+By disabling the two other interrupts only ever enabled in DMA mode
+for this purpose, we can avoid unnecessary function calls in the
+IRQ handler. This will also prevent an unneccesary FIQ interrupt
+from being generated if the FIQ is enabled.
+
+dwc_otg: fiq: prevent FIQ thrash and incorrect state passing to IRQ
+
+In the case of a transaction to a device that had previously aborted
+due to an error, several interrupts are enabled to reset the error
+count when a device responds. This has the side-effect of making the
+FIQ thrash because the hardware will generate multiple instances of
+a NAK on an IN bulk/interrupt endpoint and multiple instances of ACK
+on an OUT bulk/interrupt endpoint. Make the FIQ mask and clear the
+associated interrupts.
+
+Additionally, on non-split transactions make sure that only unmasked
+interrupts are cleared. This caused a hard-to-trigger but serious
+race condition when you had the combination of an endpoint awaiting
+error recovery and a transaction completed on an endpoint - due to
+the sequencing and timing of interrupts generated by the dwc_otg core,
+it was possible to confuse the IRQ handler.
+
+Fix function tracing
+
+dwc_otg: whitespace cleanup in dwc_otg_urb_enqueue
+
+dwc_otg: prevent OOPSes during device disconnects
+
+The dwc_otg_urb_enqueue function is thread-unsafe. In particular the
+access of urb->hcpriv, usb_hcd_link_urb_to_ep, dwc_otg_urb->qtd and
+friends does not occur within a critical section and so if a device
+was unplugged during activity there was a high chance that the
+usbcore hub_thread would try to disable the endpoint with partially-
+formed entries in the URB queue. This would result in BUG() or null
+pointer dereferences.
+
+Fix so that access of urb->hcpriv, enqueuing to the hardware and
+adding to usbcore endpoint URB lists is contained within a single
+critical section.
+
+dwc_otg: prevent BUG() in TT allocation if hub address is > 16
+
+A fixed-size array is used to track TT allocation. This was
+previously set to 16 which caused a crash because
+dwc_otg_hcd_allocate_port would read past the end of the array.
+
+This was hit if a hub was plugged in which enumerated as addr > 16,
+due to previous device resets or unplugs.
+
+Also add #ifdef FIQ_DEBUG around hcd->hub_port_alloc[], which grows
+to a large size if 128 hub addresses are supported. This field is
+for debug only for tracking which frame an allocate happened in.
+
+dwc_otg: make channel halts with unknown state less damaging
+
+If the IRQ received a channel halt interrupt through the FIQ
+with no other bits set, the IRQ would not release the host
+channel and never complete the URB.
+
+Add catchall handling to treat as a transaction error and retry.
+
+dwc_otg: fiq_split: use TTs with more granularity
+
+This fixes certain issues with split transaction scheduling.
+
+- Isochronous multi-packet OUT transactions now hog the TT until
+  they are completed - this prevents hubs aborting transactions
+  if they get a periodic start-split out-of-order
+- Don't perform TT allocation on non-periodic endpoints - this
+  allows simultaneous use of the TT's bulk/control and periodic
+  transaction buffers
+
+This commit will mainly affect USB audio playback.
+
+dwc_otg: fix potential sleep while atomic during urb enqueue
+
+Fixes a regression introduced with eb1b482a. Kmalloc called from
+dwc_otg_hcd_qtd_add / dwc_otg_hcd_qtd_create did not always have
+the GPF_ATOMIC flag set. Force this flag when inside the larger
+critical section.
+
+dwc_otg: make fiq_split_enable imply fiq_fix_enable
+
+Failing to set up the FIQ correctly would result in
+"IRQ 32: nobody cared" errors in dmesg.
+
+dwc_otg: prevent crashes on host port disconnects
+
+Fix several issues resulting in crashes or inconsistent state
+if a Model A root port was disconnected.
+
+- Clean up queue heads properly in kill_urbs_in_qh_list by
+  removing the empty QHs from the schedule lists
+- Set the halt status properly to prevent IRQ handlers from
+  using freed memory
+- Add fiq_split related cleanup for saved registers
+- Make microframe scheduling reclaim host channels if
+  active during a disconnect
+- Abort URBs with -ESHUTDOWN status response, informing
+  device drivers so they respond in a more correct fashion
+  and don't try to resubmit URBs
+- Prevent IRQ handlers from attempting to handle channel
+  interrupts if the associated URB was dequeued (and the
+  driver state was cleared)
+
+dwc_otg: prevent leaking URBs during enqueue
+
+A dwc_otg_urb would get leaked if the HCD enqueue function
+failed for any reason. Free the URB at the appropriate points.
+
+dwc_otg: Enable NAK holdoff for control split transactions
+
+Certain low-speed devices take a very long time to complete a
+data or status stage of a control transaction, producing NAK
+responses until they complete internal processing - the USB2.0
+spec limit is up to 500mS. This causes the same type of interrupt
+storm as seen with USB-serial dongles prior to c8edb238.
+
+In certain circumstances, usually while booting, this interrupt
+storm could cause SD card timeouts.
+
+dwc_otg: Fix for occasional lockup on boot when doing a USB reset
+
+dwc_otg: Don't issue traffic to LS devices in FS mode
+
+Issuing low-speed packets when the root port is in full-speed mode
+causes the root port to stop responding. Explicitly fail when
+enqueuing URBs to a LS endpoint on a FS bus.
+
+Fix ARM architecture issue with local_irq_restore()
+
+If local_fiq_enable() is called before a local_irq_restore(flags) where
+the flags variable has the F bit set, the FIQ will be erroneously disabled.
+
+Fixup arch_local_irq_restore to avoid trampling the F bit in CPSR.
+
+Also fix some of the hacks previously implemented for previous dwc_otg
+incarnations.
+
+dwc_otg: fiq_fsm: Base commit for driver rewrite
+
+This commit removes the previous FIQ fixes entirely and adds fiq_fsm.
+
+This rewrite features much more complete support for split transactions
+and takes into account several OTG hardware bugs. High-speed
+isochronous transactions are also capable of being performed by fiq_fsm.
+
+All driver options have been removed and replaced with:
+  - dwc_otg.fiq_enable (bool)
+  - dwc_otg.fiq_fsm_enable (bool)
+  - dwc_otg.fiq_fsm_mask (bitmask)
+  - dwc_otg.nak_holdoff (unsigned int)
+
+Defaults are specified such that fiq_fsm behaves similarly to the
+previously implemented FIQ fixes.
+
+fiq_fsm: Push error recovery into the FIQ when fiq_fsm is used
+
+If the transfer associated with a QTD failed due to a bus error, the HCD
+would retry the transfer up to 3 times (implementing the USB2.0
+three-strikes retry in software).
+
+Due to the masking mechanism used by fiq_fsm, it is only possible to pass
+a single interrupt through to the HCD per-transfer.
+
+In this instance host channels would fall off the radar because the error
+reset would function, but the subsequent channel halt would be lost.
+
+Push the error count reset into the FIQ handler.
+
+fiq_fsm: Implement timeout mechanism
+
+For full-speed endpoints with a large packet size, interrupt latency
+runs the risk of the FIQ starting a transaction too late in a full-speed
+frame. If the device is still transmitting data when EOF2 for the
+downstream frame occurs, the hub will disable the port. This change is
+not reflected in the hub status endpoint and the device becomes
+unresponsive.
+
+Prevent high-bandwidth transactions from being started too late in a
+frame. The mechanism is not guaranteed: a combination of bit stuffing
+and hub latency may still result in a device overrunning.
+
+fiq_fsm: fix bounce buffer utilisation for Isochronous OUT
+
+Multi-packet isochronous OUT transactions were subject to a few bounday
+bugs. Fix them.
+
+Audio playback is now much more robust: however, an issue stands with
+devices that have adaptive sinks - ALSA plays samples too fast.
+
+dwc_otg: Return full-speed frame numbers in HS mode
+
+The frame counter increments on every *microframe* in high-speed mode.
+Most device drivers expect this number to be in full-speed frames - this
+caused considerable confusion to e.g. snd_usb_audio which uses the
+frame counter to estimate the number of samples played.
+
+fiq_fsm: save PID on completion of interrupt OUT transfers
+
+Also add edge case handling for interrupt transports.
+
+Note that for periodic split IN, data toggles are unimplemented in the
+OTG host hardware - it unconditionally accepts any PID.
+
+fiq_fsm: add missing case for fiq_fsm_tt_in_use()
+
+Certain combinations of bitrate and endpoint activity could
+result in a periodic transaction erroneously getting started
+while the previous Isochronous OUT was still active.
+
+fiq_fsm: clear hcintmsk for aborted transactions
+
+Prevents the FIQ from erroneously handling interrupts
+on a timed out channel.
+
+fiq_fsm: enable by default
+
+fiq_fsm: fix dequeues for non-periodic split transactions
+
+If a dequeue happened between the SSPLIT and CSPLIT phases of the
+transaction, the HCD would never receive an interrupt.
+
+fiq_fsm: Disable by default
+
+fiq_fsm: Handle HC babble errors
+
+The HCTSIZ transfer size field raises a babble interrupt if
+the counter wraps. Handle the resulting interrupt in this case.
+
+dwc_otg: fix interrupt registration for fiq_enable=0
+
+Additionally make the module parameter conditional for wherever
+hcd->fiq_state is touched.
+
+fiq_fsm: Enable by default
+
+dwc_otg: Fix various issues with root port and transaction errors
+
+Process the host port interrupts correctly (and don't trample them).
+Root port hotplug now functional again.
+
+Fix a few thinkos with the transaction error passthrough for fiq_fsm.
+
+fiq_fsm: Implement hack for Split Interrupt transactions
+
+Hubs aren't too picky about which endpoint we send Control type split
+transactions to. By treating Interrupt transfers as Control, it is
+possible to use the non-periodic queue in the OTG core as well as the
+non-periodic FIFOs in the hub itself. This massively reduces the
+microframe exclusivity/contention that periodic split transactions
+otherwise have to enforce.
+
+It goes without saying that this is a fairly egregious USB specification
+violation, but it works.
+
+Original idea by Hans Petter Selasky @ FreeBSD.org.
+
+dwc_otg: FIQ support on SMP. Set up FIQ stack and handler on Core 0 only.
+
+dwc_otg: introduce fiq_fsm_spin(un|)lock()
+
+SMP safety for the FIQ relies on register read-modify write cycles being
+completed in the correct order. Several places in the DWC code modify
+registers also touched by the FIQ. Protect these by a bare-bones lock
+mechanism.
+
+This also makes it possible to run the FIQ and IRQ handlers on different
+cores.
+
+fiq_fsm: fix build on bcm2708 and bcm2709 platforms
+
+dwc_otg: put some barriers back where they should be for UP
+
+bcm2709/dwc_otg: Setup FIQ on core 1 if >1 core active
+
+dwc_otg: fixup read-modify-write in critical paths
+
+Be more careful about read-modify-write on registers that the FIQ
+also touches.
+
+Guard fiq_fsm_spin_lock with fiq_enable check
+
+fiq_fsm: Falling out of the state machine isn't fatal
+
+This edge case can be hit if the port is disabled while the FIQ is
+in the middle of a transaction. Make the effects less severe.
+
+Also get rid of the useless return value.
+
+squash: dwc_otg: Allow to build without SMP
+
+usb: core: make overcurrent messages more prominent
+
+Hub overcurrent messages are more serious than "debug". Increase loglevel.
+
+usb: dwc_otg: Don't use dma_to_virt()
+
+Commit 6ce0d20 changes dma_to_virt() which breaks this driver.
+Open code the old dma_to_virt() implementation to work around this.
+
+Limit the use of __bus_to_virt() to cases where transfer_buffer_length
+is set and transfer_buffer is not set. This is done to increase the
+chance that this driver will also work on ARCH_BCM2835.
+
+transfer_buffer should not be NULL if the length is set, but the
+comment in the code indicates that there are situations where this
+might happen. drivers/usb/isp1760/isp1760-hcd.c also has a similar
+comment pointing to a possible: 'usb storage / SCSI bug'.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dwc_otg: Fix crash when fiq_enable=0
+
+dwc_otg: fiq_fsm: Make high-speed isochronous strided transfers work properly
+
+Certain low-bandwidth high-speed USB devices (specialist audio devices,
+compressed-frame webcams) have packet intervals > 1 microframe.
+
+Stride these transfers in the FIQ by using the start-of-frame interrupt
+to restart the channel at the right time.
+
+dwc_otg: Force host mode to fix incorrect compute module boards
+
+dwc_otg: Add ARCH_BCM2835 support
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dwc_otg: Simplify FIQ irq number code
+
+Dropping ATAGS means we can simplify the FIQ irq number code.
+Also add error checking on the returned irq number.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dwc_otg: Remove duplicate gadget probe/unregister function
+
+dwc_otg: Properly set the HFIR
+
+Douglas Anderson reported:
+
+According to the most up to date version of the dwc2 databook, the FRINT
+field of the HFIR register should be programmed to:
+* 125 us * (PHY clock freq for HS) - 1
+* 1000 us * (PHY clock freq for FS/LS) - 1
+
+This is opposed to older versions of the doc that claimed it should be:
+* 125 us * (PHY clock freq for HS)
+* 1000 us * (PHY clock freq for FS/LS)
+
+and reported lower timing jitter on a USB analyser
+
+dcw_otg: trim xfer length when buffer larger than allocated size is received
+
+dwc_otg: Don't free qh align buffers in atomic context
+
+dwc_otg: Enable the hack for Split Interrupt transactions by default
+
+dwc_otg.fiq_fsm_mask=0xF has long been a suggestion for users with audio stutters or other USB bandwidth issues.
+So far we are aware of many success stories but no failure caused by this setting.
+Make it a default to learn more.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=70437
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+dwc_otg: Use kzalloc when suitable
+
+dwc_otg: Pass struct device to dma_alloc*()
+
+This makes it possible to get the bus address from Device Tree.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dwc_otg: fix summarize urb->actual_length for isochronous transfers
+
+Kernel does not copy input data of ISO transfers to userspace
+if actual_length is set only in ISO transfers and not summarized
+in urb->actual_length. Fixes raspberrypi/linux#903
+
+fiq_fsm: Use correct states when starting isoc OUT transfers
+
+In fiq_fsm_start_next_periodic() if an isochronous OUT transfer
+was selected, no regard was given as to whether this was a single-packet
+transfer or a multi-packet staged transfer.
+
+For single-packet transfers, this had the effect of repeatedly sending
+OUT packets with bogus data and lengths.
+
+Eventually if the channel was repeatedly enabled enough times, this
+would lock up the OTG core and no further bus transfers would happen.
+
+Set the FSM state up properly if we select a single-packet transfer.
+
+Fixes https://github.com/raspberrypi/linux/issues/1842
+
+dwc_otg: make nak_holdoff work as intended with empty queues
+
+If URBs reading from non-periodic split endpoints were dequeued and
+the last transfer from the endpoint was a NAK handshake, the resulting
+qh->nak_frame value was stale which would result in unnecessarily long
+polling intervals for the first subsequent transfer with a fresh URB.
+
+Fixup qh->nak_frame in dwc_otg_hcd_urb_dequeue and also guard against
+a case where a single URB is submitted to the endpoint, a NAK was
+received on the transfer immediately prior to receiving data and the
+device subsequently resubmits another URB past the qh->nak_frame interval.
+
+Fixes https://github.com/raspberrypi/linux/issues/1709
+
+dwc_otg: fix split transaction data toggle handling around dequeues
+
+See https://github.com/raspberrypi/linux/issues/1709
+
+Fix several issues regarding endpoint state when URBs are dequeued
+- If the HCD is disconnected, flush FIQ-enabled channels properly
+- Save the data toggle state for bulk endpoints if the last transfer
+  from an endpoint where URBs were dequeued returned a data packet
+- Reset hc->start_pkt_count properly in assign_and_init_hc()
+
+dwc_otg: fix several potential crash sources
+
+On root port disconnect events, the host driver state is cleared and
+in-progress host channels are forcibly stopped. This doesn't play
+well with the FIQ running in the background, so:
+- Guard the disconnect callback with both the host spinlock and FIQ
+  spinlock
+- Move qtd dereference in dwc_otg_handle_hc_fsm() after the early-out
+  so we don't dereference a qtd that has gone away
+- Turn catch-all BUG()s in dwc_otg_handle_hc_fsm() into warnings.
+
+dwc_otg: delete hcd->channel_lock
+
+The lock serves no purpose as it is only held while the HCD spinlock
+is already being held.
+
+dwc_otg: remove unnecessary dma-mode channel halts on disconnect interrupt
+
+Host channels are already halted in kill_urbs_in_qh_list() with the
+subsequent interrupt processing behaving as if the URB was dequeued
+via HCD callback.
+
+There's no need to clobber the host channel registers a second time
+as this exposes races between the driver and host channel resulting
+in hcd->free_hc_list becoming corrupted.
+
+dwcotg: Allow to build without FIQ on ARM64
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+dwc_otg: make periodic scheduling behave properly for FS buses
+
+If the root port is in full-speed mode, transfer times at 12mbit/s
+would be calculated but matched against high-speed quotas.
+
+Reinitialise hcd->frame_usecs[i] on each port enable event so that
+full-speed bandwidth can be tracked sensibly.
+
+Also, don't bother using the FIQ for transfers when in full-speed
+mode - at the slower bus speed, interrupt frequency is reduced by
+an order of magnitude.
+
+Related issue: https://github.com/raspberrypi/linux/issues/2020
+
+dwc_otg: fiq_fsm: Make isochronous compatibility checks work properly
+
+Get rid of the spammy printk and local pointer mangling.
+Also, there is a nominal benefit for using fiq_fsm for isochronous
+transfers in FS mode (~1.1k IRQs per second vs 2.1k IRQs per second)
+so remove the root port speed check.
+
+dwc_otg: add module parameter int_ep_interval_min
+
+Add a module parameter (defaulting to ignored) that clamps the polling rate
+of high-speed Interrupt endpoints to a minimum microframe interval.
+
+The parameter is modifiable at runtime as it is used when activating new
+endpoints (such as on device connect).
+
+dwc_otg: fiq_fsm: Add non-periodic TT exclusivity constraints
+
+Certain hub types do not discriminate between pipe direction (IN or OUT)
+when considering non-periodic transfers. Therefore these hubs get confused
+if multiple transfers are issued in different directions with the same
+device address and endpoint number.
+
+Constrain queuing non-periodic split transactions so they are performed
+serially in such cases.
+
+Related: https://github.com/raspberrypi/linux/issues/2024
+
+dwc_otg: Fixup change to DRIVER_ATTR interface
+
+dwc_otg: Fix compilation warnings
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+USB_DWCOTG: Disable building dwc_otg as a module (#2265)
+
+When dwc_otg is built as a module, build will fail with the following
+error:
+
+ERROR: "DWC_TASK_HI_SCHEDULE" [drivers/usb/host/dwc_otg/dwc_otg.ko] undefined!
+scripts/Makefile.modpost:91: recipe for target '__modpost' failed
+make[1]: *** [__modpost] Error 1
+Makefile:1199: recipe for target 'modules' failed
+make: *** [modules] Error 2
+
+Even if the error is solved by including the missing
+DWC_TASK_HI_SCHEDULE function, the kernel will panic when loading
+dwc_otg.
+
+As a workaround, simply prevent user from building dwc_otg as a module
+as the current kernel does not support it.
+
+See: https://github.com/raspberrypi/linux/issues/2258
+
+Signed-off-by: Malik Olivier Boussejra <malik@boussejra.com>
+
+dwc_otg: New timer API
+
+dwc_otg: Fix removed ACCESS_ONCE->READ_ONCE
+
+dwc_otg: don't unconditionally force host mode in dwc_otg_cil_init()
+
+Add the ability to disable force_host_mode for those that want to use
+dwc_otg in both device and host modes.
+
+dwc_otg: Fix a regression when dequeueing isochronous transfers
+
+In 282bed95 (dwc_otg: make nak_holdoff work as intended with empty queues)
+the dequeue mechanism was changed to leave FIQ-enabled transfers to run
+to completion - to avoid leaving hub TT buffers with stale packets lying
+around.
+
+This broke FIQ-accelerated isochronous transfers, as this then meant that
+dozens of transfers were performed after the dequeue function returned.
+
+Restore the state machine fence for isochronous transfers.
+
+fiq_fsm: rewind DMA pointer for OUT transactions that fail (#2288)
+
+See: https://github.com/raspberrypi/linux/issues/2140
+
+dwc_otg: add smp_mb() to prevent driver state corruption on boot
+
+Occasional crashes have been seen where the FIQ code dereferences
+invalid/random pointers immediately after being set up, leading to
+panic on boot.
+
+The crash occurs as the FIQ code races against hcd_init_fiq() and
+the hcd_init_fiq() code races against the outstanding memory stores
+from dwc_otg_hcd_init(). Use explicit barriers after touching
+driver state.
+
+usb: dwc_otg: fix memory corruption in dwc_otg driver
+
+[Upstream commit 51b1b6491752ac066ee8d32cc66042fcc955fef6]
+
+The move from the staging tree to the main tree exposed a
+longstanding memory corruption bug in the dwc2 driver. The
+reordering of the driver initialization caused the dwc2 driver
+to corrupt the initialization data of the sdhci driver on the
+Raspberry Pi platform, which made the bug show up.
+
+The error is in calling to_usb_device(hsotg->dev), since ->dev
+is not a member of struct usb_device. The easiest fix is to
+just remove the offending code, since it is not really needed.
+
+Thanks to Stephen Warren for tracking down the cause of this.
+
+Reported-by: Andre Heider <a.heider@gmail.com>
+Tested-by: Stephen Warren <swarren@wwwdotorg.org>
+Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+[lukas: port from upstream dwc2 to out-of-tree dwc_otg driver]
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+
+usb: dwb_otg: Fix unreachable switch statement warning
+
+This warning appears with GCC 7.3.0 from toolchains.bootlin.com:
+
+../drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c: In function ‘fiq_fsm_update_hs_isoc’:
+../drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:595:61: warning: statement will never be executed [-Wswitch-unreachable]
+   st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps;
+                                            ~~~~~~~~~~~~~~~~~^~~~
+
+Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
+
+dwc_otg: fiq_fsm: fix incorrect DMA register offset calculation
+
+Rationalise the offset and update all call sites.
+
+Fixes https://github.com/raspberrypi/linux/issues/2408
+
+dwc_otg: fix bug with port_addr assignment for single-TT hubs
+
+See https://github.com/raspberrypi/linux/issues/2734
+
+The "Hub Port" field in the split transaction packet was always set
+to 1 for single-TT hubs. The majority of single-TT hub products
+apparently ignore this field and broadcast to all downstream enabled
+ports, which masked the issue. A subset of hub devices apparently
+need the port number to be exact or split transactions will fail.
+
+usb: dwc_otg: Clean up build warnings on 64bit kernels
+
+No functional changes. Almost all are changes to logging lines.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+usb: dwc_otg: Use dma allocation for mphi dummy_send buffer
+
+The FIQ driver used a kzalloc'ed buffer for dummy_send,
+passing a kernel virtual address to the hardware block.
+The buffer is only ever used for a dummy read, so it
+should be harmless, but there is the chance that it will
+cause exceptions.
+
+Use a dma allocation so that we have a genuine bus address,
+and read from that.
+Free the allocation when done for good measure.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+dwc_otg: only do_split when we actually need to do a split
+
+The previous test would fail if the root port was in fullspeed mode
+and there was a hub between the FS device and the root port. While
+the transfer worked, the schedule mangling performed for high-speed
+split transfers would break leading to an 8ms polling interval.
+
+dwc_otg: fix locking around dequeueing and killing URBs
+
+kill_urbs_in_qh_list() is practically only ever called with the fiq lock
+already held, so don't spinlock twice in the case where we need to cancel
+an isochronous transfer.
+
+Also fix up a case where the global interrupt register could be read with
+the fiq lock not held.
+
+Fixes the deadlock seen in https://github.com/raspberrypi/linux/issues/2907
+
+ARM64/DWC_OTG: Port dwc_otg driver to ARM64
+
+In ARM64, the FIQ mechanism used by this driver is not current
+implemented.   As a workaround, reqular IRQ is used instead
+of FIQ.
+
+In a separate change, the IRQ-CPU mapping is round robined
+on ARM64 to increase concurrency and allow multiple interrupts
+to be serviced at a time.  This reduces the need for FIQ.
+
+Tests Run:
+
+This mechanism is most likely to break when multiple USB devices
+are attached at the same time.  So the system was tested under
+stress.
+
+Devices:
+
+1. USB Speakers playing back a FLAC audio through VLC
+   at 96KHz.(Higher then typically, but supported on my speakers).
+
+2. sftp transferring large files through the buildin ethernet
+   connection which is connected through USB.
+
+3. Keyboard and mouse attached and being used.
+
+Although I do occasionally hear some glitches, the music seems to
+play quite well.
+
+Signed-off-by: Michael Zoran <mzoran@crowfest.net>
+
+usb: dwc_otg: Clean up interrupt claiming code
+
+The FIQ/IRQ interrupt number identification code is scattered through
+the dwc_otg driver. Rationalise it, simplifying the code and solving
+an existing issue.
+
+See: https://github.com/raspberrypi/linux/issues/2612
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+dwc_otg: Choose appropriate IRQ handover strategy
+
+2711 has no MPHI peripheral, but the ARM Control block can fake
+interrupts. Use the size of the DTB "mphi" reg block to determine
+which is required.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+usb: host: dwc_otg: fix compiling in separate directory
+
+The dwc_otg Makefile does not respect the O=path argument correctly:
+include paths in CFLAGS are given relatively to object path, not source
+path. Compiling in a separate directory yields #include errors.
+
+Signed-off-by: Marek Behún <marek.behun@nic.cz>
+
+dwc_otg: use align_buf for small IN control transfers (#3150)
+
+The hardware will do a 4-byte write to memory on any IN packet received
+that is between 1 and 3 bytes long. This tramples memory in the uvcvideo
+driver, as it uses a sequence of 1- and 2-byte control transfers to
+query the min/max/range/step of each individual camera control and
+gives us buffers that are offsets into a struct.
+
+Catch small control transfers in the data phase and use the align_buf
+to bounce the correct number of bytes into the URB's buffer.
+
+In general, short packets on non-control endpoints should be OK as URBs
+should have enough buffer space for a wMaxPacket size transfer.
+
+See: https://github.com/raspberrypi/linux/issues/3148
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+
+dwc_otg: Declare DMA capability with HCD_DMA flag
+
+Following [1], USB controllers have to declare DMA capabilities in
+order for them to be used by adding the HCD_DMA flag to their hc_driver
+struct.
+
+[1] 7b81cb6bddd2 ("usb: add a HCD_DMA flag instead of guestimating DMA capabilities")
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+dwc_otg: checking the urb->transfer_buffer too early (#3332)
+
+After enable the HIGHMEM and VMSPLIT_3G, the dwc_otg driver doesn't
+work well on Pi2/3 boards with 1G physical ram. Users experience
+the failure when copying a file of 600M size to the USB stick. And
+at the same time, the dmesg shows:
+usb 1-1.1.2: reset high-speed USB device number 8 using dwc_otg
+sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
+blk_update_request: I/O error, dev sda, sector 3024048 op 0x1:(WRITE) flags 0x4000 phys_seg 15 prio class 0
+
+When this happens, the sg_buf sent to the driver is located in the
+highmem region, the usb_sg_init() in the core/message.c will leave
+transfer_buffer to NULL if the sg_buf is in highmem, but in the
+dwc_otg driver, it returns -EINVAL unconditionally if transfer_buffer
+is NULL.
+
+The driver can handle the situation of buffer to be NULL, if it is in
+DMA mode, it will convert an address from transfer_dma.
+
+But if the conversion fails or it is in the PIO mode, we should check
+buffer and return -EINVAL if it is NULL.
+
+BugLink: https://bugs.launchpad.net/bugs/1852510
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+dwc_otg: constrain endpoint max packet and transfer size on split IN
+
+The hcd would unconditionally set the transfer length to the endpoint
+packet size for non-isoc IN transfers. If the remaining buffer length
+was less than the length of returned data, random memory would get
+scribbled over, with bad effects if it crossed a page boundary.
+
+Force a babble error if this happens by limiting the max transfer size
+to the available buffer space. DMA will stop writing to memory on a
+babble condition.
+
+The hardware expects xfersize to be an integer multiple of maxpacket
+size, so override hcchar.b.mps as well.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+
+dwc_otg: fiq_fsm: pause when cancelling split transactions
+
+Non-periodic splits will DMA to/from the driver-provided transfer_buffer,
+which may be freed immediately after the dequeue call returns. Block until
+we know the transfer is complete.
+
+A similar delay is needed when cleaning up disconnects, as the FIQ could
+have started a periodic transfer in the previous microframe to the one
+that triggered a disconnect.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+
+dwc_otg: fiq_fsm: add a barrier on entry into FIQ handler(s)
+
+On BCM2835, there is no hardware guarantee that multiple outstanding
+reads to different peripherals will complete in-order. The FIQ code
+uses peripheral reads without barriers for performance, so in the case
+where a read to a slow peripheral was issued immediately prior to FIQ
+entry, the first peripheral read that the FIQ did could end up with
+wrong read data returned.
+
+Add dsb(sy) on entry so that all outstanding reads are retired.
+
+The FIQ only issues reads to the dwc_otg core, so per-read barriers
+in the handler itself are not required.
+
+On BCM2836 and BCM2837 the barrier is not strictly required due to
+differences in how the peripheral bus is implemented, but having
+arch-specific handlers that introduce different latencies is risky.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ arch/arm/include/asm/irqflags.h               |   16 +-
+ arch/arm/kernel/fiqasm.S                      |    4 +
+ drivers/usb/Makefile                          |    1 +
+ drivers/usb/core/generic.c                    |    1 +
+ drivers/usb/core/hub.c                        |    2 +-
+ drivers/usb/core/message.c                    |   79 +
+ drivers/usb/core/otg_productlist.h            |  114 +-
+ drivers/usb/gadget/file_storage.c             | 3676 +++++++++
+ drivers/usb/host/Kconfig                      |   10 +
+ drivers/usb/host/Makefile                     |    1 +
+ drivers/usb/host/dwc_common_port/Makefile     |   58 +
+ .../usb/host/dwc_common_port/Makefile.fbsd    |   17 +
+ .../usb/host/dwc_common_port/Makefile.linux   |   49 +
+ drivers/usb/host/dwc_common_port/changes.txt  |  174 +
+ .../usb/host/dwc_common_port/doc/doxygen.cfg  |  270 +
+ drivers/usb/host/dwc_common_port/dwc_cc.c     |  532 ++
+ drivers/usb/host/dwc_common_port/dwc_cc.h     |  224 +
+ .../host/dwc_common_port/dwc_common_fbsd.c    | 1308 +++
+ .../host/dwc_common_port/dwc_common_linux.c   | 1409 ++++
+ .../host/dwc_common_port/dwc_common_nbsd.c    | 1275 +++
+ drivers/usb/host/dwc_common_port/dwc_crypto.c |  308 +
+ drivers/usb/host/dwc_common_port/dwc_crypto.h |  111 +
+ drivers/usb/host/dwc_common_port/dwc_dh.c     |  291 +
+ drivers/usb/host/dwc_common_port/dwc_dh.h     |  106 +
+ drivers/usb/host/dwc_common_port/dwc_list.h   |  594 ++
+ drivers/usb/host/dwc_common_port/dwc_mem.c    |  245 +
+ drivers/usb/host/dwc_common_port/dwc_modpow.c |  636 ++
+ drivers/usb/host/dwc_common_port/dwc_modpow.h |   34 +
+ .../usb/host/dwc_common_port/dwc_notifier.c   |  319 +
+ .../usb/host/dwc_common_port/dwc_notifier.h   |  122 +
+ drivers/usb/host/dwc_common_port/dwc_os.h     | 1276 +++
+ drivers/usb/host/dwc_common_port/usb.h        |  946 +++
+ drivers/usb/host/dwc_otg/Makefile             |   85 +
+ drivers/usb/host/dwc_otg/doc/doxygen.cfg      |  224 +
+ drivers/usb/host/dwc_otg/dummy_audio.c        | 1574 ++++
+ drivers/usb/host/dwc_otg/dwc_cfi_common.h     |  142 +
+ drivers/usb/host/dwc_otg/dwc_otg_adp.c        |  854 ++
+ drivers/usb/host/dwc_otg/dwc_otg_adp.h        |   80 +
+ drivers/usb/host/dwc_otg/dwc_otg_attr.c       | 1212 +++
+ drivers/usb/host/dwc_otg/dwc_otg_attr.h       |   89 +
+ drivers/usb/host/dwc_otg/dwc_otg_cfi.c        | 1876 +++++
+ drivers/usb/host/dwc_otg/dwc_otg_cfi.h        |  320 +
+ drivers/usb/host/dwc_otg/dwc_otg_cil.c        | 7146 +++++++++++++++++
+ drivers/usb/host/dwc_otg/dwc_otg_cil.h        | 1464 ++++
+ drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c   | 1601 ++++
+ drivers/usb/host/dwc_otg/dwc_otg_core_if.h    |  705 ++
+ drivers/usb/host/dwc_otg/dwc_otg_dbg.h        |  117 +
+ drivers/usb/host/dwc_otg/dwc_otg_driver.c     | 1772 ++++
+ drivers/usb/host/dwc_otg/dwc_otg_driver.h     |   86 +
+ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c    | 1431 ++++
+ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h    |  399 +
+ drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S   |   80 +
+ drivers/usb/host/dwc_otg/dwc_otg_hcd.c        | 4356 ++++++++++
+ drivers/usb/host/dwc_otg/dwc_otg_hcd.h        |  870 ++
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c   | 1134 +++
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h     |  421 +
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c   | 2757 +++++++
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c  | 1086 +++
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c  |  970 +++
+ drivers/usb/host/dwc_otg/dwc_otg_os_dep.h     |  200 +
+ drivers/usb/host/dwc_otg/dwc_otg_pcd.c        | 2725 +++++++
+ drivers/usb/host/dwc_otg/dwc_otg_pcd.h        |  273 +
+ drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h     |  361 +
+ drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c   | 5148 ++++++++++++
+ drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c  | 1262 +++
+ drivers/usb/host/dwc_otg/dwc_otg_regs.h       | 2550 ++++++
+ drivers/usb/host/dwc_otg/test/Makefile        |   16 +
+ drivers/usb/host/dwc_otg/test/dwc_otg_test.pm |  337 +
+ .../usb/host/dwc_otg/test/test_mod_param.pl   |  133 +
+ drivers/usb/host/dwc_otg/test/test_sysfs.pl   |  193 +
+ 70 files changed, 60241 insertions(+), 16 deletions(-)
+ create mode 100644 drivers/usb/gadget/file_storage.c
+ create mode 100644 drivers/usb/host/dwc_common_port/Makefile
+ create mode 100644 drivers/usb/host/dwc_common_port/Makefile.fbsd
+ create mode 100644 drivers/usb/host/dwc_common_port/Makefile.linux
+ create mode 100644 drivers/usb/host/dwc_common_port/changes.txt
+ create mode 100644 drivers/usb/host/dwc_common_port/doc/doxygen.cfg
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_cc.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_cc.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_fbsd.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_linux.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_common_nbsd.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_crypto.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_crypto.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_dh.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_dh.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_list.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_mem.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_modpow.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_modpow.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_notifier.c
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_notifier.h
+ create mode 100644 drivers/usb/host/dwc_common_port/dwc_os.h
+ create mode 100644 drivers/usb/host/dwc_common_port/usb.h
+ create mode 100644 drivers/usb/host/dwc_otg/Makefile
+ create mode 100644 drivers/usb/host/dwc_otg/doc/doxygen.cfg
+ create mode 100644 drivers/usb/host/dwc_otg/dummy_audio.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_cfi_common.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_adp.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_adp.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_attr.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_attr.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cfi.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cfi.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_core_if.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_dbg.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_driver.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_driver.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c
+ create mode 100644 drivers/usb/host/dwc_otg/dwc_otg_regs.h
+ create mode 100644 drivers/usb/host/dwc_otg/test/Makefile
+ create mode 100644 drivers/usb/host/dwc_otg/test/dwc_otg_test.pm
+ create mode 100644 drivers/usb/host/dwc_otg/test/test_mod_param.pl
+ create mode 100644 drivers/usb/host/dwc_otg/test/test_sysfs.pl
+
+--- a/arch/arm/include/asm/irqflags.h
++++ b/arch/arm/include/asm/irqflags.h
+@@ -163,13 +163,23 @@ static inline unsigned long arch_local_s
+ }
+ 
+ /*
+- * restore saved IRQ & FIQ state
++ * restore saved IRQ state
+  */
+ #define arch_local_irq_restore arch_local_irq_restore
+ static inline void arch_local_irq_restore(unsigned long flags)
+ {
+-	asm volatile(
+-		"	msr	" IRQMASK_REG_NAME_W ", %0	@ local_irq_restore"
++	unsigned long temp = 0;
++	flags &= ~(1 << 6);
++	asm volatile (
++		" mrs %0, cpsr"
++		: "=r" (temp)
++		:
++		: "memory", "cc");
++		/* Preserve FIQ bit */
++		temp &= (1 << 6);
++		flags = flags | temp;
++	asm volatile (
++		"    msr    cpsr_c, %0    @ local_irq_restore"
+ 		:
+ 		: "r" (flags)
+ 		: "memory", "cc");
+--- a/arch/arm/kernel/fiqasm.S
++++ b/arch/arm/kernel/fiqasm.S
+@@ -47,3 +47,7 @@ ENTRY(__get_fiq_regs)
+ 	mov	r0, r0		@ avoid hazard prior to ARMv4
+ 	ret	lr
+ ENDPROC(__get_fiq_regs)
++
++ENTRY(__FIQ_Branch)
++	mov pc, r8
++ENDPROC(__FIQ_Branch)
+--- a/drivers/usb/Makefile
++++ b/drivers/usb/Makefile
+@@ -9,6 +9,7 @@ obj-$(CONFIG_USB_COMMON)	+= common/
+ obj-$(CONFIG_USB)		+= core/
+ obj-$(CONFIG_USB_SUPPORT)	+= phy/
+ 
++obj-$(CONFIG_USB_DWCOTG)	+= host/
+ obj-$(CONFIG_USB_DWC3)		+= dwc3/
+ obj-$(CONFIG_USB_DWC2)		+= dwc2/
+ obj-$(CONFIG_USB_ISP1760)	+= isp1760/
+--- a/drivers/usb/core/generic.c
++++ b/drivers/usb/core/generic.c
+@@ -190,6 +190,7 @@ int usb_choose_configuration(struct usb_
+ 		dev_warn(&udev->dev,
+ 			"no configuration chosen from %d choice%s\n",
+ 			num_configs, plural(num_configs));
++		dev_warn(&udev->dev, "No support over %dmA\n", udev->bus_mA);
+ 	}
+ 	return i;
+ }
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -5494,7 +5494,7 @@ static void port_event(struct usb_hub *h
+ 		port_dev->over_current_count++;
+ 		port_over_current_notify(port_dev);
+ 
+-		dev_dbg(&port_dev->dev, "over-current change #%u\n",
++		dev_notice(&port_dev->dev, "over-current change #%u\n",
+ 			port_dev->over_current_count);
+ 		usb_clear_port_feature(hdev, port1,
+ 				USB_PORT_FEAT_C_OVER_CURRENT);
+--- a/drivers/usb/core/message.c
++++ b/drivers/usb/core/message.c
+@@ -2129,6 +2129,85 @@ free_interfaces:
+ 	if (cp->string == NULL &&
+ 			!(dev->quirks & USB_QUIRK_CONFIG_INTF_STRINGS))
+ 		cp->string = usb_cache_string(dev, cp->desc.iConfiguration);
++/* Uncomment this define to enable the HS Electrical Test support */
++#define DWC_HS_ELECT_TST 1
++#ifdef DWC_HS_ELECT_TST
++		/* Here we implement the HS Electrical Test support. The
++		 * tester uses a vendor ID of 0x1A0A to indicate we should
++		 * run a special test sequence. The product ID tells us
++		 * which sequence to run. We invoke the test sequence by
++		 * sending a non-standard SetFeature command to our root
++		 * hub port. Our dwc_otg_hcd_hub_control() routine will
++		 * recognize the command and perform the desired test
++		 * sequence.
++		 */
++		if (dev->descriptor.idVendor == 0x1A0A) {
++			/* HSOTG Electrical Test */
++			dev_warn(&dev->dev, "VID from HSOTG Electrical Test Fixture\n");
++
++			if (dev->bus && dev->bus->root_hub) {
++				struct usb_device *hdev = dev->bus->root_hub;
++				dev_warn(&dev->dev, "Got PID 0x%x\n", dev->descriptor.idProduct);
++
++				switch (dev->descriptor.idProduct) {
++				case 0x0101:	/* TEST_SE0_NAK */
++					dev_warn(&dev->dev, "TEST_SE0_NAK\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x300, NULL, 0, HZ);
++					break;
++
++				case 0x0102:	/* TEST_J */
++					dev_warn(&dev->dev, "TEST_J\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x100, NULL, 0, HZ);
++					break;
++
++				case 0x0103:	/* TEST_K */
++					dev_warn(&dev->dev, "TEST_K\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x200, NULL, 0, HZ);
++					break;
++
++				case 0x0104:	/* TEST_PACKET */
++					dev_warn(&dev->dev, "TEST_PACKET\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x400, NULL, 0, HZ);
++					break;
++
++				case 0x0105:	/* TEST_FORCE_ENABLE */
++					dev_warn(&dev->dev, "TEST_FORCE_ENABLE\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x500, NULL, 0, HZ);
++					break;
++
++				case 0x0106:	/* HS_HOST_PORT_SUSPEND_RESUME */
++					dev_warn(&dev->dev, "HS_HOST_PORT_SUSPEND_RESUME\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x600, NULL, 0, 40 * HZ);
++					break;
++
++				case 0x0107:	/* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */
++					dev_warn(&dev->dev, "SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x700, NULL, 0, 40 * HZ);
++					break;
++
++				case 0x0108:	/* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */
++					dev_warn(&dev->dev, "SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute\n");
++					usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0),
++							USB_REQ_SET_FEATURE, USB_RT_PORT,
++							USB_PORT_FEAT_TEST, 0x800, NULL, 0, 40 * HZ);
++				}
++			}
++		}
++#endif /* DWC_HS_ELECT_TST */
+ 
+ 	/* Now that the interfaces are installed, re-enable LPM. */
+ 	usb_unlocked_enable_lpm(dev);
+--- a/drivers/usb/core/otg_productlist.h
++++ b/drivers/usb/core/otg_productlist.h
+@@ -11,33 +11,82 @@
+ static struct usb_device_id productlist_table[] = {
+ 
+ /* hubs are optional in OTG, but very handy ... */
++#define CERT_WITHOUT_HUBS
++#if defined(CERT_WITHOUT_HUBS)
++{ USB_DEVICE( 0x0000, 0x0000 ), }, /* Root HUB Only*/
++#else
+ { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
+ { USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), },
++{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 2), },
++#endif
+ 
+ #ifdef	CONFIG_USB_PRINTER		/* ignoring nonstatic linkage! */
+ /* FIXME actually, printers are NOT supposed to use device classes;
+  * they're supposed to use interface classes...
+  */
+-{ USB_DEVICE_INFO(7, 1, 1) },
+-{ USB_DEVICE_INFO(7, 1, 2) },
+-{ USB_DEVICE_INFO(7, 1, 3) },
++//{ USB_DEVICE_INFO(7, 1, 1) },
++//{ USB_DEVICE_INFO(7, 1, 2) },
++//{ USB_DEVICE_INFO(7, 1, 3) },
+ #endif
+ 
+ #ifdef	CONFIG_USB_NET_CDCETHER
+ /* Linux-USB CDC Ethernet gadget */
+-{ USB_DEVICE(0x0525, 0xa4a1), },
++//{ USB_DEVICE(0x0525, 0xa4a1), },
+ /* Linux-USB CDC Ethernet + RNDIS gadget */
+-{ USB_DEVICE(0x0525, 0xa4a2), },
++//{ USB_DEVICE(0x0525, 0xa4a2), },
+ #endif
+ 
+ #if	IS_ENABLED(CONFIG_USB_TEST)
+ /* gadget zero, for testing */
+-{ USB_DEVICE(0x0525, 0xa4a0), },
++//{ USB_DEVICE(0x0525, 0xa4a0), },
+ #endif
+ 
++/* OPT Tester */
++{ USB_DEVICE( 0x1a0a, 0x0101 ), }, /* TEST_SE0_NAK */
++{ USB_DEVICE( 0x1a0a, 0x0102 ), }, /* Test_J */
++{ USB_DEVICE( 0x1a0a, 0x0103 ), }, /* Test_K */
++{ USB_DEVICE( 0x1a0a, 0x0104 ), }, /* Test_PACKET */
++{ USB_DEVICE( 0x1a0a, 0x0105 ), }, /* Test_FORCE_ENABLE */
++{ USB_DEVICE( 0x1a0a, 0x0106 ), }, /* HS_PORT_SUSPEND_RESUME  */
++{ USB_DEVICE( 0x1a0a, 0x0107 ), }, /* SINGLE_STEP_GET_DESCRIPTOR setup */
++{ USB_DEVICE( 0x1a0a, 0x0108 ), }, /* SINGLE_STEP_GET_DESCRIPTOR execute */
++
++/* Sony cameras */
++{ USB_DEVICE_VER(0x054c,0x0010,0x0410, 0x0500), },
++
++/* Memory Devices */
++//{ USB_DEVICE( 0x0781, 0x5150 ), }, /* SanDisk */
++//{ USB_DEVICE( 0x05DC, 0x0080 ), }, /* Lexar */
++//{ USB_DEVICE( 0x4146, 0x9281 ), }, /* IOMEGA */
++//{ USB_DEVICE( 0x067b, 0x2507 ), }, /* Hammer 20GB External HD  */
++{ USB_DEVICE( 0x0EA0, 0x2168 ), }, /* Ours Technology Inc. (BUFFALO ClipDrive)*/
++//{ USB_DEVICE( 0x0457, 0x0150 ), }, /* Silicon Integrated Systems Corp. */
++
++/* HP Printers */
++//{ USB_DEVICE( 0x03F0, 0x1102 ), }, /* HP Photosmart 245 */
++//{ USB_DEVICE( 0x03F0, 0x1302 ), }, /* HP Photosmart 370 Series */
++
++/* Speakers */
++//{ USB_DEVICE( 0x0499, 0x3002 ), }, /* YAMAHA YST-MS35D USB Speakers */
++//{ USB_DEVICE( 0x0672, 0x1041 ), }, /* Labtec USB Headset */
++
+ { }	/* Terminating entry */
+ };
+ 
++static inline void report_errors(struct usb_device *dev)
++{
++	/* OTG MESSAGE: report errors here, customize to match your product */
++	dev_info(&dev->dev, "device Vendor:%04x Product:%04x is not supported\n",
++		 le16_to_cpu(dev->descriptor.idVendor),
++		 le16_to_cpu(dev->descriptor.idProduct));
++        if (USB_CLASS_HUB == dev->descriptor.bDeviceClass){
++                dev_printk(KERN_CRIT, &dev->dev, "Unsupported Hub Topology\n");
++        } else {
++                dev_printk(KERN_CRIT, &dev->dev, "Attached Device is not Supported\n");
++        }
++}
++
++
+ static int is_targeted(struct usb_device *dev)
+ {
+ 	struct usb_device_id	*id = productlist_table;
+@@ -87,16 +136,57 @@ static int is_targeted(struct usb_device
+ 			continue;
+ 
+ 		return 1;
+-	}
++		/* NOTE: can't use usb_match_id() since interface caches
++		 * aren't set up yet. this is cut/paste from that code.
++		 */
++		for (id = whitelist_table; id->match_flags; id++) {
++#ifdef DEBUG
++			dev_dbg(&dev->dev,
++				"ID: V:%04x P:%04x DC:%04x SC:%04x PR:%04x \n",
++				id->idVendor,
++				id->idProduct,
++				id->bDeviceClass,
++				id->bDeviceSubClass,
++				id->bDeviceProtocol);
++#endif
+ 
+-	/* add other match criteria here ... */
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
++			    id->idVendor != le16_to_cpu(dev->descriptor.idVendor))
++				continue;
++
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
++			    id->idProduct != le16_to_cpu(dev->descriptor.idProduct))
++				continue;
++
++			/* No need to test id->bcdDevice_lo != 0, since 0 is never
++			   greater than any unsigned number. */
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) &&
++			    (id->bcdDevice_lo > le16_to_cpu(dev->descriptor.bcdDevice)))
++				continue;
++
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) &&
++			    (id->bcdDevice_hi < le16_to_cpu(dev->descriptor.bcdDevice)))
++				continue;
++
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) &&
++			    (id->bDeviceClass != dev->descriptor.bDeviceClass))
++				continue;
++
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
++			    (id->bDeviceSubClass != dev->descriptor.bDeviceSubClass))
++				continue;
++
++			if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&
++			    (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol))
++				continue;
+ 
++			return 1;
++		}
++	}
+ 
+-	/* OTG MESSAGE: report errors here, customize to match your product */
+-	dev_err(&dev->dev, "device v%04x p%04x is not supported\n",
+-		le16_to_cpu(dev->descriptor.idVendor),
+-		le16_to_cpu(dev->descriptor.idProduct));
++	/* add other match criteria here ... */
+ 
++	report_errors(dev);
+ 	return 0;
+ }
+ 
+--- /dev/null
++++ b/drivers/usb/gadget/file_storage.c
+@@ -0,0 +1,3676 @@
++/*
++ * file_storage.c -- File-backed USB Storage Gadget, for USB development
++ *
++ * Copyright (C) 2003-2008 Alan Stern
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") as published by the Free Software
++ * Foundation, either version 2 of that License or (at your option) any
++ * later version.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++
++/*
++ * The File-backed Storage Gadget acts as a USB Mass Storage device,
++ * appearing to the host as a disk drive or as a CD-ROM drive.  In addition
++ * to providing an example of a genuinely useful gadget driver for a USB
++ * device, it also illustrates a technique of double-buffering for increased
++ * throughput.  Last but not least, it gives an easy way to probe the
++ * behavior of the Mass Storage drivers in a USB host.
++ *
++ * Backing storage is provided by a regular file or a block device, specified
++ * by the "file" module parameter.  Access can be limited to read-only by
++ * setting the optional "ro" module parameter.  (For CD-ROM emulation,
++ * access is always read-only.)  The gadget will indicate that it has
++ * removable media if the optional "removable" module parameter is set.
++ *
++ * The gadget supports the Control-Bulk (CB), Control-Bulk-Interrupt (CBI),
++ * and Bulk-Only (also known as Bulk-Bulk-Bulk or BBB) transports, selected
++ * by the optional "transport" module parameter.  It also supports the
++ * following protocols: RBC (0x01), ATAPI or SFF-8020i (0x02), QIC-157 (0c03),
++ * UFI (0x04), SFF-8070i (0x05), and transparent SCSI (0x06), selected by
++ * the optional "protocol" module parameter.  In addition, the default
++ * Vendor ID, Product ID, release number and serial number can be overridden.
++ *
++ * There is support for multiple logical units (LUNs), each of which has
++ * its own backing file.  The number of LUNs can be set using the optional
++ * "luns" module parameter (anywhere from 1 to 8), and the corresponding
++ * files are specified using comma-separated lists for "file" and "ro".
++ * The default number of LUNs is taken from the number of "file" elements;
++ * it is 1 if "file" is not given.  If "removable" is not set then a backing
++ * file must be specified for each LUN.  If it is set, then an unspecified
++ * or empty backing filename means the LUN's medium is not loaded.  Ideally
++ * each LUN would be settable independently as a disk drive or a CD-ROM
++ * drive, but currently all LUNs have to be the same type.  The CD-ROM
++ * emulation includes a single data track and no audio tracks; hence there
++ * need be only one backing file per LUN.
++ *
++ * Requirements are modest; only a bulk-in and a bulk-out endpoint are
++ * needed (an interrupt-out endpoint is also needed for CBI).  The memory
++ * requirement amounts to two 16K buffers, size configurable by a parameter.
++ * Support is included for both full-speed and high-speed operation.
++ *
++ * Note that the driver is slightly non-portable in that it assumes a
++ * single memory/DMA buffer will be useable for bulk-in, bulk-out, and
++ * interrupt-in endpoints.  With most device controllers this isn't an
++ * issue, but there may be some with hardware restrictions that prevent
++ * a buffer from being used by more than one endpoint.
++ *
++ * Module options:
++ *
++ *	file=filename[,filename...]
++ *				Required if "removable" is not set, names of
++ *					the files or block devices used for
++ *					backing storage
++ *	serial=HHHH...		Required serial number (string of hex chars)
++ *	ro=b[,b...]		Default false, booleans for read-only access
++ *	removable		Default false, boolean for removable media
++ *	luns=N			Default N = number of filenames, number of
++ *					LUNs to support
++ *	nofua=b[,b...]		Default false, booleans for ignore FUA flag
++ *					in SCSI WRITE(10,12) commands
++ *	stall			Default determined according to the type of
++ *					USB device controller (usually true),
++ *					boolean to permit the driver to halt
++ *					bulk endpoints
++ *	cdrom			Default false, boolean for whether to emulate
++ *					a CD-ROM drive
++ *	transport=XXX		Default BBB, transport name (CB, CBI, or BBB)
++ *	protocol=YYY		Default SCSI, protocol name (RBC, 8020 or
++ *					ATAPI, QIC, UFI, 8070, or SCSI;
++ *					also 1 - 6)
++ *	vendor=0xVVVV		Default 0x0525 (NetChip), USB Vendor ID
++ *	product=0xPPPP		Default 0xa4a5 (FSG), USB Product ID
++ *	release=0xRRRR		Override the USB release number (bcdDevice)
++ *	buflen=N		Default N=16384, buffer size used (will be
++ *					rounded down to a multiple of
++ *					PAGE_CACHE_SIZE)
++ *
++ * If CONFIG_USB_FILE_STORAGE_TEST is not set, only the "file", "serial", "ro",
++ * "removable", "luns", "nofua", "stall", and "cdrom" options are available;
++ * default values are used for everything else.
++ *
++ * The pathnames of the backing files and the ro settings are available in
++ * the attribute files "file", "nofua", and "ro" in the lun<n> subdirectory of
++ * the gadget's sysfs directory.  If the "removable" option is set, writing to
++ * these files will simulate ejecting/loading the medium (writing an empty
++ * line means eject) and adjusting a write-enable tab.  Changes to the ro
++ * setting are not allowed when the medium is loaded or if CD-ROM emulation
++ * is being used.
++ *
++ * This gadget driver is heavily based on "Gadget Zero" by David Brownell.
++ * The driver's SCSI command interface was based on the "Information
++ * technology - Small Computer System Interface - 2" document from
++ * X3T9.2 Project 375D, Revision 10L, 7-SEP-93, available at
++ * <http://www.t10.org/ftp/t10/drafts/s2/s2-r10l.pdf>.  The single exception
++ * is opcode 0x23 (READ FORMAT CAPACITIES), which was based on the
++ * "Universal Serial Bus Mass Storage Class UFI Command Specification"
++ * document, Revision 1.0, December 14, 1998, available at
++ * <http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf>.
++ */
++
++
++/*
++ *				Driver Design
++ *
++ * The FSG driver is fairly straightforward.  There is a main kernel
++ * thread that handles most of the work.  Interrupt routines field
++ * callbacks from the controller driver: bulk- and interrupt-request
++ * completion notifications, endpoint-0 events, and disconnect events.
++ * Completion events are passed to the main thread by wakeup calls.  Many
++ * ep0 requests are handled at interrupt time, but SetInterface,
++ * SetConfiguration, and device reset requests are forwarded to the
++ * thread in the form of "exceptions" using SIGUSR1 signals (since they
++ * should interrupt any ongoing file I/O operations).
++ *
++ * The thread's main routine implements the standard command/data/status
++ * parts of a SCSI interaction.  It and its subroutines are full of tests
++ * for pending signals/exceptions -- all this polling is necessary since
++ * the kernel has no setjmp/longjmp equivalents.  (Maybe this is an
++ * indication that the driver really wants to be running in userspace.)
++ * An important point is that so long as the thread is alive it keeps an
++ * open reference to the backing file.  This will prevent unmounting
++ * the backing file's underlying filesystem and could cause problems
++ * during system shutdown, for example.  To prevent such problems, the
++ * thread catches INT, TERM, and KILL signals and converts them into
++ * an EXIT exception.
++ *
++ * In normal operation the main thread is started during the gadget's
++ * fsg_bind() callback and stopped during fsg_unbind().  But it can also
++ * exit when it receives a signal, and there's no point leaving the
++ * gadget running when the thread is dead.  So just before the thread
++ * exits, it deregisters the gadget driver.  This makes things a little
++ * tricky: The driver is deregistered at two places, and the exiting
++ * thread can indirectly call fsg_unbind() which in turn can tell the
++ * thread to exit.  The first problem is resolved through the use of the
++ * REGISTERED atomic bitflag; the driver will only be deregistered once.
++ * The second problem is resolved by having fsg_unbind() check
++ * fsg->state; it won't try to stop the thread if the state is already
++ * FSG_STATE_TERMINATED.
++ *
++ * To provide maximum throughput, the driver uses a circular pipeline of
++ * buffer heads (struct fsg_buffhd).  In principle the pipeline can be
++ * arbitrarily long; in practice the benefits don't justify having more
++ * than 2 stages (i.e., double buffering).  But it helps to think of the
++ * pipeline as being a long one.  Each buffer head contains a bulk-in and
++ * a bulk-out request pointer (since the buffer can be used for both
++ * output and input -- directions always are given from the host's
++ * point of view) as well as a pointer to the buffer and various state
++ * variables.
++ *
++ * Use of the pipeline follows a simple protocol.  There is a variable
++ * (fsg->next_buffhd_to_fill) that points to the next buffer head to use.
++ * At any time that buffer head may still be in use from an earlier
++ * request, so each buffer head has a state variable indicating whether
++ * it is EMPTY, FULL, or BUSY.  Typical use involves waiting for the
++ * buffer head to be EMPTY, filling the buffer either by file I/O or by
++ * USB I/O (during which the buffer head is BUSY), and marking the buffer
++ * head FULL when the I/O is complete.  Then the buffer will be emptied
++ * (again possibly by USB I/O, during which it is marked BUSY) and
++ * finally marked EMPTY again (possibly by a completion routine).
++ *
++ * A module parameter tells the driver to avoid stalling the bulk
++ * endpoints wherever the transport specification allows.  This is
++ * necessary for some UDCs like the SuperH, which cannot reliably clear a
++ * halt on a bulk endpoint.  However, under certain circumstances the
++ * Bulk-only specification requires a stall.  In such cases the driver
++ * will halt the endpoint and set a flag indicating that it should clear
++ * the halt in software during the next device reset.  Hopefully this
++ * will permit everything to work correctly.  Furthermore, although the
++ * specification allows the bulk-out endpoint to halt when the host sends
++ * too much data, implementing this would cause an unavoidable race.
++ * The driver will always use the "no-stall" approach for OUT transfers.
++ *
++ * One subtle point concerns sending status-stage responses for ep0
++ * requests.  Some of these requests, such as device reset, can involve
++ * interrupting an ongoing file I/O operation, which might take an
++ * arbitrarily long time.  During that delay the host might give up on
++ * the original ep0 request and issue a new one.  When that happens the
++ * driver should not notify the host about completion of the original
++ * request, as the host will no longer be waiting for it.  So the driver
++ * assigns to each ep0 request a unique tag, and it keeps track of the
++ * tag value of the request associated with a long-running exception
++ * (device-reset, interface-change, or configuration-change).  When the
++ * exception handler is finished, the status-stage response is submitted
++ * only if the current ep0 request tag is equal to the exception request
++ * tag.  Thus only the most recently received ep0 request will get a
++ * status-stage response.
++ *
++ * Warning: This driver source file is too long.  It ought to be split up
++ * into a header file plus about 3 separate .c files, to handle the details
++ * of the Gadget, USB Mass Storage, and SCSI protocols.
++ */
++
++
++/* #define VERBOSE_DEBUG */
++/* #define DUMP_MSGS */
++
++
++#include <linux/blkdev.h>
++#include <linux/completion.h>
++#include <linux/dcache.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/fcntl.h>
++#include <linux/file.h>
++#include <linux/fs.h>
++#include <linux/kref.h>
++#include <linux/kthread.h>
++#include <linux/limits.h>
++#include <linux/module.h>
++#include <linux/rwsem.h>
++#include <linux/slab.h>
++#include <linux/spinlock.h>
++#include <linux/string.h>
++#include <linux/freezer.h>
++#include <linux/utsname.h>
++
++#include <linux/usb/ch9.h>
++#include <linux/usb/gadget.h>
++
++#include "gadget_chips.h"
++
++
++
++/*
++ * Kbuild is not very cooperative with respect to linking separately
++ * compiled library objects into one module.  So for now we won't use
++ * separate compilation ... ensuring init/exit sections work to shrink
++ * the runtime footprint, and giving us at least some parts of what
++ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
++ */
++#include "usbstring.c"
++#include "config.c"
++#include "epautoconf.c"
++
++/*-------------------------------------------------------------------------*/
++
++#define DRIVER_DESC		"File-backed Storage Gadget"
++#define DRIVER_NAME		"g_file_storage"
++#define DRIVER_VERSION		"1 September 2010"
++
++static       char fsg_string_manufacturer[64];
++static const char fsg_string_product[] = DRIVER_DESC;
++static const char fsg_string_config[] = "Self-powered";
++static const char fsg_string_interface[] = "Mass Storage";
++
++
++#include "storage_common.c"
++
++
++MODULE_DESCRIPTION(DRIVER_DESC);
++MODULE_AUTHOR("Alan Stern");
++MODULE_LICENSE("Dual BSD/GPL");
++
++/*
++ * This driver assumes self-powered hardware and has no way for users to
++ * trigger remote wakeup.  It uses autoconfiguration to select endpoints
++ * and endpoint addresses.
++ */
++
++
++/*-------------------------------------------------------------------------*/
++
++
++/* Encapsulate the module parameter settings */
++
++static struct {
++	char		*file[FSG_MAX_LUNS];
++	char		*serial;
++	bool		ro[FSG_MAX_LUNS];
++	bool		nofua[FSG_MAX_LUNS];
++	unsigned int	num_filenames;
++	unsigned int	num_ros;
++	unsigned int	num_nofuas;
++	unsigned int	nluns;
++
++	bool		removable;
++	bool		can_stall;
++	bool		cdrom;
++
++	char		*transport_parm;
++	char		*protocol_parm;
++	unsigned short	vendor;
++	unsigned short	product;
++	unsigned short	release;
++	unsigned int	buflen;
++
++	int		transport_type;
++	char		*transport_name;
++	int		protocol_type;
++	char		*protocol_name;
++
++} mod_data = {					// Default values
++	.transport_parm		= "BBB",
++	.protocol_parm		= "SCSI",
++	.removable		= 0,
++	.can_stall		= 1,
++	.cdrom			= 0,
++	.vendor			= FSG_VENDOR_ID,
++	.product		= FSG_PRODUCT_ID,
++	.release		= 0xffff,	// Use controller chip type
++	.buflen			= 16384,
++	};
++
++
++module_param_array_named(file, mod_data.file, charp, &mod_data.num_filenames,
++		S_IRUGO);
++MODULE_PARM_DESC(file, "names of backing files or devices");
++
++module_param_named(serial, mod_data.serial, charp, S_IRUGO);
++MODULE_PARM_DESC(serial, "USB serial number");
++
++module_param_array_named(ro, mod_data.ro, bool, &mod_data.num_ros, S_IRUGO);
++MODULE_PARM_DESC(ro, "true to force read-only");
++
++module_param_array_named(nofua, mod_data.nofua, bool, &mod_data.num_nofuas,
++		S_IRUGO);
++MODULE_PARM_DESC(nofua, "true to ignore SCSI WRITE(10,12) FUA bit");
++
++module_param_named(luns, mod_data.nluns, uint, S_IRUGO);
++MODULE_PARM_DESC(luns, "number of LUNs");
++
++module_param_named(removable, mod_data.removable, bool, S_IRUGO);
++MODULE_PARM_DESC(removable, "true to simulate removable media");
++
++module_param_named(stall, mod_data.can_stall, bool, S_IRUGO);
++MODULE_PARM_DESC(stall, "false to prevent bulk stalls");
++
++module_param_named(cdrom, mod_data.cdrom, bool, S_IRUGO);
++MODULE_PARM_DESC(cdrom, "true to emulate cdrom instead of disk");
++
++/* In the non-TEST version, only the module parameters listed above
++ * are available. */
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++
++module_param_named(transport, mod_data.transport_parm, charp, S_IRUGO);
++MODULE_PARM_DESC(transport, "type of transport (BBB, CBI, or CB)");
++
++module_param_named(protocol, mod_data.protocol_parm, charp, S_IRUGO);
++MODULE_PARM_DESC(protocol, "type of protocol (RBC, 8020, QIC, UFI, "
++		"8070, or SCSI)");
++
++module_param_named(vendor, mod_data.vendor, ushort, S_IRUGO);
++MODULE_PARM_DESC(vendor, "USB Vendor ID");
++
++module_param_named(product, mod_data.product, ushort, S_IRUGO);
++MODULE_PARM_DESC(product, "USB Product ID");
++
++module_param_named(release, mod_data.release, ushort, S_IRUGO);
++MODULE_PARM_DESC(release, "USB release number");
++
++module_param_named(buflen, mod_data.buflen, uint, S_IRUGO);
++MODULE_PARM_DESC(buflen, "I/O buffer size");
++
++#endif /* CONFIG_USB_FILE_STORAGE_TEST */
++
++
++/*
++ * These definitions will permit the compiler to avoid generating code for
++ * parts of the driver that aren't used in the non-TEST version.  Even gcc
++ * can recognize when a test of a constant expression yields a dead code
++ * path.
++ */
++
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++
++#define transport_is_bbb()	(mod_data.transport_type == USB_PR_BULK)
++#define transport_is_cbi()	(mod_data.transport_type == USB_PR_CBI)
++#define protocol_is_scsi()	(mod_data.protocol_type == USB_SC_SCSI)
++
++#else
++
++#define transport_is_bbb()	1
++#define transport_is_cbi()	0
++#define protocol_is_scsi()	1
++
++#endif /* CONFIG_USB_FILE_STORAGE_TEST */
++
++
++/*-------------------------------------------------------------------------*/
++
++
++struct fsg_dev {
++	/* lock protects: state, all the req_busy's, and cbbuf_cmnd */
++	spinlock_t		lock;
++	struct usb_gadget	*gadget;
++
++	/* filesem protects: backing files in use */
++	struct rw_semaphore	filesem;
++
++	/* reference counting: wait until all LUNs are released */
++	struct kref		ref;
++
++	struct usb_ep		*ep0;		// Handy copy of gadget->ep0
++	struct usb_request	*ep0req;	// For control responses
++	unsigned int		ep0_req_tag;
++	const char		*ep0req_name;
++
++	struct usb_request	*intreq;	// For interrupt responses
++	int			intreq_busy;
++	struct fsg_buffhd	*intr_buffhd;
++
++	unsigned int		bulk_out_maxpacket;
++	enum fsg_state		state;		// For exception handling
++	unsigned int		exception_req_tag;
++
++	u8			config, new_config;
++
++	unsigned int		running : 1;
++	unsigned int		bulk_in_enabled : 1;
++	unsigned int		bulk_out_enabled : 1;
++	unsigned int		intr_in_enabled : 1;
++	unsigned int		phase_error : 1;
++	unsigned int		short_packet_received : 1;
++	unsigned int		bad_lun_okay : 1;
++
++	unsigned long		atomic_bitflags;
++#define REGISTERED		0
++#define IGNORE_BULK_OUT		1
++#define SUSPENDED		2
++
++	struct usb_ep		*bulk_in;
++	struct usb_ep		*bulk_out;
++	struct usb_ep		*intr_in;
++
++	struct fsg_buffhd	*next_buffhd_to_fill;
++	struct fsg_buffhd	*next_buffhd_to_drain;
++
++	int			thread_wakeup_needed;
++	struct completion	thread_notifier;
++	struct task_struct	*thread_task;
++
++	int			cmnd_size;
++	u8			cmnd[MAX_COMMAND_SIZE];
++	enum data_direction	data_dir;
++	u32			data_size;
++	u32			data_size_from_cmnd;
++	u32			tag;
++	unsigned int		lun;
++	u32			residue;
++	u32			usb_amount_left;
++
++	/* The CB protocol offers no way for a host to know when a command
++	 * has completed.  As a result the next command may arrive early,
++	 * and we will still have to handle it.  For that reason we need
++	 * a buffer to store new commands when using CB (or CBI, which
++	 * does not oblige a host to wait for command completion either). */
++	int			cbbuf_cmnd_size;
++	u8			cbbuf_cmnd[MAX_COMMAND_SIZE];
++
++	unsigned int		nluns;
++	struct fsg_lun		*luns;
++	struct fsg_lun		*curlun;
++	/* Must be the last entry */
++	struct fsg_buffhd	buffhds[];
++};
++
++typedef void (*fsg_routine_t)(struct fsg_dev *);
++
++static int exception_in_progress(struct fsg_dev *fsg)
++{
++	return (fsg->state > FSG_STATE_IDLE);
++}
++
++/* Make bulk-out requests be divisible by the maxpacket size */
++static void set_bulk_out_req_length(struct fsg_dev *fsg,
++		struct fsg_buffhd *bh, unsigned int length)
++{
++	unsigned int	rem;
++
++	bh->bulk_out_intended_length = length;
++	rem = length % fsg->bulk_out_maxpacket;
++	if (rem > 0)
++		length += fsg->bulk_out_maxpacket - rem;
++	bh->outreq->length = length;
++}
++
++static struct fsg_dev			*the_fsg;
++static struct usb_gadget_driver		fsg_driver;
++
++
++/*-------------------------------------------------------------------------*/
++
++static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)
++{
++	const char	*name;
++
++	if (ep == fsg->bulk_in)
++		name = "bulk-in";
++	else if (ep == fsg->bulk_out)
++		name = "bulk-out";
++	else
++		name = ep->name;
++	DBG(fsg, "%s set halt\n", name);
++	return usb_ep_set_halt(ep);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/*
++ * DESCRIPTORS ... most are static, but strings and (full) configuration
++ * descriptors are built on demand.  Also the (static) config and interface
++ * descriptors are adjusted during fsg_bind().
++ */
++
++/* There is only one configuration. */
++#define	CONFIG_VALUE		1
++
++static struct usb_device_descriptor
++device_desc = {
++	.bLength =		sizeof device_desc,
++	.bDescriptorType =	USB_DT_DEVICE,
++
++	.bcdUSB =		cpu_to_le16(0x0200),
++	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
++
++	/* The next three values can be overridden by module parameters */
++	.idVendor =		cpu_to_le16(FSG_VENDOR_ID),
++	.idProduct =		cpu_to_le16(FSG_PRODUCT_ID),
++	.bcdDevice =		cpu_to_le16(0xffff),
++
++	.iManufacturer =	FSG_STRING_MANUFACTURER,
++	.iProduct =		FSG_STRING_PRODUCT,
++	.iSerialNumber =	FSG_STRING_SERIAL,
++	.bNumConfigurations =	1,
++};
++
++static struct usb_config_descriptor
++config_desc = {
++	.bLength =		sizeof config_desc,
++	.bDescriptorType =	USB_DT_CONFIG,
++
++	/* wTotalLength computed by usb_gadget_config_buf() */
++	.bNumInterfaces =	1,
++	.bConfigurationValue =	CONFIG_VALUE,
++	.iConfiguration =	FSG_STRING_CONFIG,
++	.bmAttributes =		USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
++	.bMaxPower =		CONFIG_USB_GADGET_VBUS_DRAW / 2,
++};
++
++
++static struct usb_qualifier_descriptor
++dev_qualifier = {
++	.bLength =		sizeof dev_qualifier,
++	.bDescriptorType =	USB_DT_DEVICE_QUALIFIER,
++
++	.bcdUSB =		cpu_to_le16(0x0200),
++	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
++
++	.bNumConfigurations =	1,
++};
++
++static int populate_bos(struct fsg_dev *fsg, u8 *buf)
++{
++	memcpy(buf, &fsg_bos_desc, USB_DT_BOS_SIZE);
++	buf += USB_DT_BOS_SIZE;
++
++	memcpy(buf, &fsg_ext_cap_desc, USB_DT_USB_EXT_CAP_SIZE);
++	buf += USB_DT_USB_EXT_CAP_SIZE;
++
++	memcpy(buf, &fsg_ss_cap_desc, USB_DT_USB_SS_CAP_SIZE);
++
++	return USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE
++		+ USB_DT_USB_EXT_CAP_SIZE;
++}
++
++/*
++ * Config descriptors must agree with the code that sets configurations
++ * and with code managing interfaces and their altsettings.  They must
++ * also handle different speeds and other-speed requests.
++ */
++static int populate_config_buf(struct usb_gadget *gadget,
++		u8 *buf, u8 type, unsigned index)
++{
++	enum usb_device_speed			speed = gadget->speed;
++	int					len;
++	const struct usb_descriptor_header	**function;
++
++	if (index > 0)
++		return -EINVAL;
++
++	if (gadget_is_dualspeed(gadget) && type == USB_DT_OTHER_SPEED_CONFIG)
++		speed = (USB_SPEED_FULL + USB_SPEED_HIGH) - speed;
++	function = gadget_is_dualspeed(gadget) && speed == USB_SPEED_HIGH
++		? (const struct usb_descriptor_header **)fsg_hs_function
++		: (const struct usb_descriptor_header **)fsg_fs_function;
++
++	/* for now, don't advertise srp-only devices */
++	if (!gadget_is_otg(gadget))
++		function++;
++
++	len = usb_gadget_config_buf(&config_desc, buf, EP0_BUFSIZE, function);
++	((struct usb_config_descriptor *) buf)->bDescriptorType = type;
++	return len;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* These routines may be called in process context or in_irq */
++
++/* Caller must hold fsg->lock */
++static void wakeup_thread(struct fsg_dev *fsg)
++{
++	/* Tell the main thread that something has happened */
++	fsg->thread_wakeup_needed = 1;
++	if (fsg->thread_task)
++		wake_up_process(fsg->thread_task);
++}
++
++
++static void raise_exception(struct fsg_dev *fsg, enum fsg_state new_state)
++{
++	unsigned long		flags;
++
++	/* Do nothing if a higher-priority exception is already in progress.
++	 * If a lower-or-equal priority exception is in progress, preempt it
++	 * and notify the main thread by sending it a signal. */
++	spin_lock_irqsave(&fsg->lock, flags);
++	if (fsg->state <= new_state) {
++		fsg->exception_req_tag = fsg->ep0_req_tag;
++		fsg->state = new_state;
++		if (fsg->thread_task)
++			send_sig_info(SIGUSR1, SEND_SIG_FORCED,
++					fsg->thread_task);
++	}
++	spin_unlock_irqrestore(&fsg->lock, flags);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* The disconnect callback and ep0 routines.  These always run in_irq,
++ * except that ep0_queue() is called in the main thread to acknowledge
++ * completion of various requests: set config, set interface, and
++ * Bulk-only device reset. */
++
++static void fsg_disconnect(struct usb_gadget *gadget)
++{
++	struct fsg_dev		*fsg = get_gadget_data(gadget);
++
++	DBG(fsg, "disconnect or port reset\n");
++	raise_exception(fsg, FSG_STATE_DISCONNECT);
++}
++
++
++static int ep0_queue(struct fsg_dev *fsg)
++{
++	int	rc;
++
++	rc = usb_ep_queue(fsg->ep0, fsg->ep0req, GFP_ATOMIC);
++	if (rc != 0 && rc != -ESHUTDOWN) {
++
++		/* We can't do much more than wait for a reset */
++		WARNING(fsg, "error in submission: %s --> %d\n",
++				fsg->ep0->name, rc);
++	}
++	return rc;
++}
++
++static void ep0_complete(struct usb_ep *ep, struct usb_request *req)
++{
++	struct fsg_dev		*fsg = ep->driver_data;
++
++	if (req->actual > 0)
++		dump_msg(fsg, fsg->ep0req_name, req->buf, req->actual);
++	if (req->status || req->actual != req->length)
++		DBG(fsg, "%s --> %d, %u/%u\n", __func__,
++				req->status, req->actual, req->length);
++	if (req->status == -ECONNRESET)		// Request was cancelled
++		usb_ep_fifo_flush(ep);
++
++	if (req->status == 0 && req->context)
++		((fsg_routine_t) (req->context))(fsg);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* Bulk and interrupt endpoint completion handlers.
++ * These always run in_irq. */
++
++static void bulk_in_complete(struct usb_ep *ep, struct usb_request *req)
++{
++	struct fsg_dev		*fsg = ep->driver_data;
++	struct fsg_buffhd	*bh = req->context;
++
++	if (req->status || req->actual != req->length)
++		DBG(fsg, "%s --> %d, %u/%u\n", __func__,
++				req->status, req->actual, req->length);
++	if (req->status == -ECONNRESET)		// Request was cancelled
++		usb_ep_fifo_flush(ep);
++
++	/* Hold the lock while we update the request and buffer states */
++	smp_wmb();
++	spin_lock(&fsg->lock);
++	bh->inreq_busy = 0;
++	bh->state = BUF_STATE_EMPTY;
++	wakeup_thread(fsg);
++	spin_unlock(&fsg->lock);
++}
++
++static void bulk_out_complete(struct usb_ep *ep, struct usb_request *req)
++{
++	struct fsg_dev		*fsg = ep->driver_data;
++	struct fsg_buffhd	*bh = req->context;
++
++	dump_msg(fsg, "bulk-out", req->buf, req->actual);
++	if (req->status || req->actual != bh->bulk_out_intended_length)
++		DBG(fsg, "%s --> %d, %u/%u\n", __func__,
++				req->status, req->actual,
++				bh->bulk_out_intended_length);
++	if (req->status == -ECONNRESET)		// Request was cancelled
++		usb_ep_fifo_flush(ep);
++
++	/* Hold the lock while we update the request and buffer states */
++	smp_wmb();
++	spin_lock(&fsg->lock);
++	bh->outreq_busy = 0;
++	bh->state = BUF_STATE_FULL;
++	wakeup_thread(fsg);
++	spin_unlock(&fsg->lock);
++}
++
++
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++static void intr_in_complete(struct usb_ep *ep, struct usb_request *req)
++{
++	struct fsg_dev		*fsg = ep->driver_data;
++	struct fsg_buffhd	*bh = req->context;
++
++	if (req->status || req->actual != req->length)
++		DBG(fsg, "%s --> %d, %u/%u\n", __func__,
++				req->status, req->actual, req->length);
++	if (req->status == -ECONNRESET)		// Request was cancelled
++		usb_ep_fifo_flush(ep);
++
++	/* Hold the lock while we update the request and buffer states */
++	smp_wmb();
++	spin_lock(&fsg->lock);
++	fsg->intreq_busy = 0;
++	bh->state = BUF_STATE_EMPTY;
++	wakeup_thread(fsg);
++	spin_unlock(&fsg->lock);
++}
++
++#else
++static void intr_in_complete(struct usb_ep *ep, struct usb_request *req)
++{}
++#endif /* CONFIG_USB_FILE_STORAGE_TEST */
++
++
++/*-------------------------------------------------------------------------*/
++
++/* Ep0 class-specific handlers.  These always run in_irq. */
++
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++static void received_cbi_adsc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct usb_request	*req = fsg->ep0req;
++	static u8		cbi_reset_cmnd[6] = {
++			SEND_DIAGNOSTIC, 4, 0xff, 0xff, 0xff, 0xff};
++
++	/* Error in command transfer? */
++	if (req->status || req->length != req->actual ||
++			req->actual < 6 || req->actual > MAX_COMMAND_SIZE) {
++
++		/* Not all controllers allow a protocol stall after
++		 * receiving control-out data, but we'll try anyway. */
++		fsg_set_halt(fsg, fsg->ep0);
++		return;			// Wait for reset
++	}
++
++	/* Is it the special reset command? */
++	if (req->actual >= sizeof cbi_reset_cmnd &&
++			memcmp(req->buf, cbi_reset_cmnd,
++				sizeof cbi_reset_cmnd) == 0) {
++
++		/* Raise an exception to stop the current operation
++		 * and reinitialize our state. */
++		DBG(fsg, "cbi reset request\n");
++		raise_exception(fsg, FSG_STATE_RESET);
++		return;
++	}
++
++	VDBG(fsg, "CB[I] accept device-specific command\n");
++	spin_lock(&fsg->lock);
++
++	/* Save the command for later */
++	if (fsg->cbbuf_cmnd_size)
++		WARNING(fsg, "CB[I] overwriting previous command\n");
++	fsg->cbbuf_cmnd_size = req->actual;
++	memcpy(fsg->cbbuf_cmnd, req->buf, fsg->cbbuf_cmnd_size);
++
++	wakeup_thread(fsg);
++	spin_unlock(&fsg->lock);
++}
++
++#else
++static void received_cbi_adsc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{}
++#endif /* CONFIG_USB_FILE_STORAGE_TEST */
++
++
++static int class_setup_req(struct fsg_dev *fsg,
++		const struct usb_ctrlrequest *ctrl)
++{
++	struct usb_request	*req = fsg->ep0req;
++	int			value = -EOPNOTSUPP;
++	u16			w_index = le16_to_cpu(ctrl->wIndex);
++	u16                     w_value = le16_to_cpu(ctrl->wValue);
++	u16			w_length = le16_to_cpu(ctrl->wLength);
++
++	if (!fsg->config)
++		return value;
++
++	/* Handle Bulk-only class-specific requests */
++	if (transport_is_bbb()) {
++		switch (ctrl->bRequest) {
++
++		case US_BULK_RESET_REQUEST:
++			if (ctrl->bRequestType != (USB_DIR_OUT |
++					USB_TYPE_CLASS | USB_RECIP_INTERFACE))
++				break;
++			if (w_index != 0 || w_value != 0 || w_length != 0) {
++				value = -EDOM;
++				break;
++			}
++
++			/* Raise an exception to stop the current operation
++			 * and reinitialize our state. */
++			DBG(fsg, "bulk reset request\n");
++			raise_exception(fsg, FSG_STATE_RESET);
++			value = DELAYED_STATUS;
++			break;
++
++		case US_BULK_GET_MAX_LUN:
++			if (ctrl->bRequestType != (USB_DIR_IN |
++					USB_TYPE_CLASS | USB_RECIP_INTERFACE))
++				break;
++			if (w_index != 0 || w_value != 0 || w_length != 1) {
++				value = -EDOM;
++				break;
++			}
++			VDBG(fsg, "get max LUN\n");
++			*(u8 *) req->buf = fsg->nluns - 1;
++			value = 1;
++			break;
++		}
++	}
++
++	/* Handle CBI class-specific requests */
++	else {
++		switch (ctrl->bRequest) {
++
++		case USB_CBI_ADSC_REQUEST:
++			if (ctrl->bRequestType != (USB_DIR_OUT |
++					USB_TYPE_CLASS | USB_RECIP_INTERFACE))
++				break;
++			if (w_index != 0 || w_value != 0) {
++				value = -EDOM;
++				break;
++			}
++			if (w_length > MAX_COMMAND_SIZE) {
++				value = -EOVERFLOW;
++				break;
++			}
++			value = w_length;
++			fsg->ep0req->context = received_cbi_adsc;
++			break;
++		}
++	}
++
++	if (value == -EOPNOTSUPP)
++		VDBG(fsg,
++			"unknown class-specific control req "
++			"%02x.%02x v%04x i%04x l%u\n",
++			ctrl->bRequestType, ctrl->bRequest,
++			le16_to_cpu(ctrl->wValue), w_index, w_length);
++	return value;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* Ep0 standard request handlers.  These always run in_irq. */
++
++static int standard_setup_req(struct fsg_dev *fsg,
++		const struct usb_ctrlrequest *ctrl)
++{
++	struct usb_request	*req = fsg->ep0req;
++	int			value = -EOPNOTSUPP;
++	u16			w_index = le16_to_cpu(ctrl->wIndex);
++	u16			w_value = le16_to_cpu(ctrl->wValue);
++
++	/* Usually this just stores reply data in the pre-allocated ep0 buffer,
++	 * but config change events will also reconfigure hardware. */
++	switch (ctrl->bRequest) {
++
++	case USB_REQ_GET_DESCRIPTOR:
++		if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD |
++				USB_RECIP_DEVICE))
++			break;
++		switch (w_value >> 8) {
++
++		case USB_DT_DEVICE:
++			VDBG(fsg, "get device descriptor\n");
++			device_desc.bMaxPacketSize0 = fsg->ep0->maxpacket;
++			value = sizeof device_desc;
++			memcpy(req->buf, &device_desc, value);
++			break;
++		case USB_DT_DEVICE_QUALIFIER:
++			VDBG(fsg, "get device qualifier\n");
++			if (!gadget_is_dualspeed(fsg->gadget) ||
++					fsg->gadget->speed == USB_SPEED_SUPER)
++				break;
++			/*
++			 * Assume ep0 uses the same maxpacket value for both
++			 * speeds
++			 */
++			dev_qualifier.bMaxPacketSize0 = fsg->ep0->maxpacket;
++			value = sizeof dev_qualifier;
++			memcpy(req->buf, &dev_qualifier, value);
++			break;
++
++		case USB_DT_OTHER_SPEED_CONFIG:
++			VDBG(fsg, "get other-speed config descriptor\n");
++			if (!gadget_is_dualspeed(fsg->gadget) ||
++					fsg->gadget->speed == USB_SPEED_SUPER)
++				break;
++			goto get_config;
++		case USB_DT_CONFIG:
++			VDBG(fsg, "get configuration descriptor\n");
++get_config:
++			value = populate_config_buf(fsg->gadget,
++					req->buf,
++					w_value >> 8,
++					w_value & 0xff);
++			break;
++
++		case USB_DT_STRING:
++			VDBG(fsg, "get string descriptor\n");
++
++			/* wIndex == language code */
++			value = usb_gadget_get_string(&fsg_stringtab,
++					w_value & 0xff, req->buf);
++			break;
++
++		case USB_DT_BOS:
++			VDBG(fsg, "get bos descriptor\n");
++
++			if (gadget_is_superspeed(fsg->gadget))
++				value = populate_bos(fsg, req->buf);
++			break;
++		}
++
++		break;
++
++	/* One config, two speeds */
++	case USB_REQ_SET_CONFIGURATION:
++		if (ctrl->bRequestType != (USB_DIR_OUT | USB_TYPE_STANDARD |
++				USB_RECIP_DEVICE))
++			break;
++		VDBG(fsg, "set configuration\n");
++		if (w_value == CONFIG_VALUE || w_value == 0) {
++			fsg->new_config = w_value;
++
++			/* Raise an exception to wipe out previous transaction
++			 * state (queued bufs, etc) and set the new config. */
++			raise_exception(fsg, FSG_STATE_CONFIG_CHANGE);
++			value = DELAYED_STATUS;
++		}
++		break;
++	case USB_REQ_GET_CONFIGURATION:
++		if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD |
++				USB_RECIP_DEVICE))
++			break;
++		VDBG(fsg, "get configuration\n");
++		*(u8 *) req->buf = fsg->config;
++		value = 1;
++		break;
++
++	case USB_REQ_SET_INTERFACE:
++		if (ctrl->bRequestType != (USB_DIR_OUT| USB_TYPE_STANDARD |
++				USB_RECIP_INTERFACE))
++			break;
++		if (fsg->config && w_index == 0) {
++
++			/* Raise an exception to wipe out previous transaction
++			 * state (queued bufs, etc) and install the new
++			 * interface altsetting. */
++			raise_exception(fsg, FSG_STATE_INTERFACE_CHANGE);
++			value = DELAYED_STATUS;
++		}
++		break;
++	case USB_REQ_GET_INTERFACE:
++		if (ctrl->bRequestType != (USB_DIR_IN | USB_TYPE_STANDARD |
++				USB_RECIP_INTERFACE))
++			break;
++		if (!fsg->config)
++			break;
++		if (w_index != 0) {
++			value = -EDOM;
++			break;
++		}
++		VDBG(fsg, "get interface\n");
++		*(u8 *) req->buf = 0;
++		value = 1;
++		break;
++
++	default:
++		VDBG(fsg,
++			"unknown control req %02x.%02x v%04x i%04x l%u\n",
++			ctrl->bRequestType, ctrl->bRequest,
++			w_value, w_index, le16_to_cpu(ctrl->wLength));
++	}
++
++	return value;
++}
++
++
++static int fsg_setup(struct usb_gadget *gadget,
++		const struct usb_ctrlrequest *ctrl)
++{
++	struct fsg_dev		*fsg = get_gadget_data(gadget);
++	int			rc;
++	int			w_length = le16_to_cpu(ctrl->wLength);
++
++	++fsg->ep0_req_tag;		// Record arrival of a new request
++	fsg->ep0req->context = NULL;
++	fsg->ep0req->length = 0;
++	dump_msg(fsg, "ep0-setup", (u8 *) ctrl, sizeof(*ctrl));
++
++	if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_CLASS)
++		rc = class_setup_req(fsg, ctrl);
++	else
++		rc = standard_setup_req(fsg, ctrl);
++
++	/* Respond with data/status or defer until later? */
++	if (rc >= 0 && rc != DELAYED_STATUS) {
++		rc = min(rc, w_length);
++		fsg->ep0req->length = rc;
++		fsg->ep0req->zero = rc < w_length;
++		fsg->ep0req_name = (ctrl->bRequestType & USB_DIR_IN ?
++				"ep0-in" : "ep0-out");
++		rc = ep0_queue(fsg);
++	}
++
++	/* Device either stalls (rc < 0) or reports success */
++	return rc;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* All the following routines run in process context */
++
++
++/* Use this for bulk or interrupt transfers, not ep0 */
++static void start_transfer(struct fsg_dev *fsg, struct usb_ep *ep,
++		struct usb_request *req, int *pbusy,
++		enum fsg_buffer_state *state)
++{
++	int	rc;
++
++	if (ep == fsg->bulk_in)
++		dump_msg(fsg, "bulk-in", req->buf, req->length);
++	else if (ep == fsg->intr_in)
++		dump_msg(fsg, "intr-in", req->buf, req->length);
++
++	spin_lock_irq(&fsg->lock);
++	*pbusy = 1;
++	*state = BUF_STATE_BUSY;
++	spin_unlock_irq(&fsg->lock);
++	rc = usb_ep_queue(ep, req, GFP_KERNEL);
++	if (rc != 0) {
++		*pbusy = 0;
++		*state = BUF_STATE_EMPTY;
++
++		/* We can't do much more than wait for a reset */
++
++		/* Note: currently the net2280 driver fails zero-length
++		 * submissions if DMA is enabled. */
++		if (rc != -ESHUTDOWN && !(rc == -EOPNOTSUPP &&
++						req->length == 0))
++			WARNING(fsg, "error in submission: %s --> %d\n",
++					ep->name, rc);
++	}
++}
++
++
++static int sleep_thread(struct fsg_dev *fsg)
++{
++	int	rc = 0;
++
++	/* Wait until a signal arrives or we are woken up */
++	for (;;) {
++		try_to_freeze();
++		set_current_state(TASK_INTERRUPTIBLE);
++		if (signal_pending(current)) {
++			rc = -EINTR;
++			break;
++		}
++		if (fsg->thread_wakeup_needed)
++			break;
++		schedule();
++	}
++	__set_current_state(TASK_RUNNING);
++	fsg->thread_wakeup_needed = 0;
++	return rc;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int do_read(struct fsg_dev *fsg)
++{
++	struct fsg_lun		*curlun = fsg->curlun;
++	u32			lba;
++	struct fsg_buffhd	*bh;
++	int			rc;
++	u32			amount_left;
++	loff_t			file_offset, file_offset_tmp;
++	unsigned int		amount;
++	ssize_t			nread;
++
++	/* Get the starting Logical Block Address and check that it's
++	 * not too big */
++	if (fsg->cmnd[0] == READ_6)
++		lba = get_unaligned_be24(&fsg->cmnd[1]);
++	else {
++		lba = get_unaligned_be32(&fsg->cmnd[2]);
++
++		/* We allow DPO (Disable Page Out = don't save data in the
++		 * cache) and FUA (Force Unit Access = don't read from the
++		 * cache), but we don't implement them. */
++		if ((fsg->cmnd[1] & ~0x18) != 0) {
++			curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++			return -EINVAL;
++		}
++	}
++	if (lba >= curlun->num_sectors) {
++		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++		return -EINVAL;
++	}
++	file_offset = ((loff_t) lba) << curlun->blkbits;
++
++	/* Carry out the file reads */
++	amount_left = fsg->data_size_from_cmnd;
++	if (unlikely(amount_left == 0))
++		return -EIO;		// No default reply
++
++	for (;;) {
++
++		/* Figure out how much we need to read:
++		 * Try to read the remaining amount.
++		 * But don't read more than the buffer size.
++		 * And don't try to read past the end of the file.
++		 */
++		amount = min((unsigned int) amount_left, mod_data.buflen);
++		amount = min((loff_t) amount,
++				curlun->file_length - file_offset);
++
++		/* Wait for the next buffer to become available */
++		bh = fsg->next_buffhd_to_fill;
++		while (bh->state != BUF_STATE_EMPTY) {
++			rc = sleep_thread(fsg);
++			if (rc)
++				return rc;
++		}
++
++		/* If we were asked to read past the end of file,
++		 * end with an empty buffer. */
++		if (amount == 0) {
++			curlun->sense_data =
++					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++			curlun->sense_data_info = file_offset >> curlun->blkbits;
++			curlun->info_valid = 1;
++			bh->inreq->length = 0;
++			bh->state = BUF_STATE_FULL;
++			break;
++		}
++
++		/* Perform the read */
++		file_offset_tmp = file_offset;
++		nread = vfs_read(curlun->filp,
++				(char __user *) bh->buf,
++				amount, &file_offset_tmp);
++		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
++				(unsigned long long) file_offset,
++				(int) nread);
++		if (signal_pending(current))
++			return -EINTR;
++
++		if (nread < 0) {
++			LDBG(curlun, "error in file read: %d\n",
++					(int) nread);
++			nread = 0;
++		} else if (nread < amount) {
++			LDBG(curlun, "partial file read: %d/%u\n",
++					(int) nread, amount);
++			nread = round_down(nread, curlun->blksize);
++		}
++		file_offset  += nread;
++		amount_left  -= nread;
++		fsg->residue -= nread;
++
++		/* Except at the end of the transfer, nread will be
++		 * equal to the buffer size, which is divisible by the
++		 * bulk-in maxpacket size.
++		 */
++		bh->inreq->length = nread;
++		bh->state = BUF_STATE_FULL;
++
++		/* If an error occurred, report it and its position */
++		if (nread < amount) {
++			curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
++			curlun->sense_data_info = file_offset >> curlun->blkbits;
++			curlun->info_valid = 1;
++			break;
++		}
++
++		if (amount_left == 0)
++			break;		// No more left to read
++
++		/* Send this buffer and go read some more */
++		bh->inreq->zero = 0;
++		start_transfer(fsg, fsg->bulk_in, bh->inreq,
++				&bh->inreq_busy, &bh->state);
++		fsg->next_buffhd_to_fill = bh->next;
++	}
++
++	return -EIO;		// No default reply
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int do_write(struct fsg_dev *fsg)
++{
++	struct fsg_lun		*curlun = fsg->curlun;
++	u32			lba;
++	struct fsg_buffhd	*bh;
++	int			get_some_more;
++	u32			amount_left_to_req, amount_left_to_write;
++	loff_t			usb_offset, file_offset, file_offset_tmp;
++	unsigned int		amount;
++	ssize_t			nwritten;
++	int			rc;
++
++	if (curlun->ro) {
++		curlun->sense_data = SS_WRITE_PROTECTED;
++		return -EINVAL;
++	}
++	spin_lock(&curlun->filp->f_lock);
++	curlun->filp->f_flags &= ~O_SYNC;	// Default is not to wait
++	spin_unlock(&curlun->filp->f_lock);
++
++	/* Get the starting Logical Block Address and check that it's
++	 * not too big */
++	if (fsg->cmnd[0] == WRITE_6)
++		lba = get_unaligned_be24(&fsg->cmnd[1]);
++	else {
++		lba = get_unaligned_be32(&fsg->cmnd[2]);
++
++		/* We allow DPO (Disable Page Out = don't save data in the
++		 * cache) and FUA (Force Unit Access = write directly to the
++		 * medium).  We don't implement DPO; we implement FUA by
++		 * performing synchronous output. */
++		if ((fsg->cmnd[1] & ~0x18) != 0) {
++			curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++			return -EINVAL;
++		}
++		/* FUA */
++		if (!curlun->nofua && (fsg->cmnd[1] & 0x08)) {
++			spin_lock(&curlun->filp->f_lock);
++			curlun->filp->f_flags |= O_DSYNC;
++			spin_unlock(&curlun->filp->f_lock);
++		}
++	}
++	if (lba >= curlun->num_sectors) {
++		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++		return -EINVAL;
++	}
++
++	/* Carry out the file writes */
++	get_some_more = 1;
++	file_offset = usb_offset = ((loff_t) lba) << curlun->blkbits;
++	amount_left_to_req = amount_left_to_write = fsg->data_size_from_cmnd;
++
++	while (amount_left_to_write > 0) {
++
++		/* Queue a request for more data from the host */
++		bh = fsg->next_buffhd_to_fill;
++		if (bh->state == BUF_STATE_EMPTY && get_some_more) {
++
++			/* Figure out how much we want to get:
++			 * Try to get the remaining amount,
++			 * but not more than the buffer size.
++			 */
++			amount = min(amount_left_to_req, mod_data.buflen);
++
++			/* Beyond the end of the backing file? */
++			if (usb_offset >= curlun->file_length) {
++				get_some_more = 0;
++				curlun->sense_data =
++					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++				curlun->sense_data_info = usb_offset >> curlun->blkbits;
++				curlun->info_valid = 1;
++				continue;
++			}
++
++			/* Get the next buffer */
++			usb_offset += amount;
++			fsg->usb_amount_left -= amount;
++			amount_left_to_req -= amount;
++			if (amount_left_to_req == 0)
++				get_some_more = 0;
++
++			/* Except at the end of the transfer, amount will be
++			 * equal to the buffer size, which is divisible by
++			 * the bulk-out maxpacket size.
++			 */
++			set_bulk_out_req_length(fsg, bh, amount);
++			start_transfer(fsg, fsg->bulk_out, bh->outreq,
++					&bh->outreq_busy, &bh->state);
++			fsg->next_buffhd_to_fill = bh->next;
++			continue;
++		}
++
++		/* Write the received data to the backing file */
++		bh = fsg->next_buffhd_to_drain;
++		if (bh->state == BUF_STATE_EMPTY && !get_some_more)
++			break;			// We stopped early
++		if (bh->state == BUF_STATE_FULL) {
++			smp_rmb();
++			fsg->next_buffhd_to_drain = bh->next;
++			bh->state = BUF_STATE_EMPTY;
++
++			/* Did something go wrong with the transfer? */
++			if (bh->outreq->status != 0) {
++				curlun->sense_data = SS_COMMUNICATION_FAILURE;
++				curlun->sense_data_info = file_offset >> curlun->blkbits;
++				curlun->info_valid = 1;
++				break;
++			}
++
++			amount = bh->outreq->actual;
++			if (curlun->file_length - file_offset < amount) {
++				LERROR(curlun,
++	"write %u @ %llu beyond end %llu\n",
++	amount, (unsigned long long) file_offset,
++	(unsigned long long) curlun->file_length);
++				amount = curlun->file_length - file_offset;
++			}
++
++			/* Don't accept excess data.  The spec doesn't say
++			 * what to do in this case.  We'll ignore the error.
++			 */
++			amount = min(amount, bh->bulk_out_intended_length);
++
++			/* Don't write a partial block */
++			amount = round_down(amount, curlun->blksize);
++			if (amount == 0)
++				goto empty_write;
++
++			/* Perform the write */
++			file_offset_tmp = file_offset;
++			nwritten = vfs_write(curlun->filp,
++					(char __user *) bh->buf,
++					amount, &file_offset_tmp);
++			VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
++					(unsigned long long) file_offset,
++					(int) nwritten);
++			if (signal_pending(current))
++				return -EINTR;		// Interrupted!
++
++			if (nwritten < 0) {
++				LDBG(curlun, "error in file write: %d\n",
++						(int) nwritten);
++				nwritten = 0;
++			} else if (nwritten < amount) {
++				LDBG(curlun, "partial file write: %d/%u\n",
++						(int) nwritten, amount);
++				nwritten = round_down(nwritten, curlun->blksize);
++			}
++			file_offset += nwritten;
++			amount_left_to_write -= nwritten;
++			fsg->residue -= nwritten;
++
++			/* If an error occurred, report it and its position */
++			if (nwritten < amount) {
++				curlun->sense_data = SS_WRITE_ERROR;
++				curlun->sense_data_info = file_offset >> curlun->blkbits;
++				curlun->info_valid = 1;
++				break;
++			}
++
++ empty_write:
++			/* Did the host decide to stop early? */
++			if (bh->outreq->actual < bh->bulk_out_intended_length) {
++				fsg->short_packet_received = 1;
++				break;
++			}
++			continue;
++		}
++
++		/* Wait for something to happen */
++		rc = sleep_thread(fsg);
++		if (rc)
++			return rc;
++	}
++
++	return -EIO;		// No default reply
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int do_synchronize_cache(struct fsg_dev *fsg)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		rc;
++
++	/* We ignore the requested LBA and write out all file's
++	 * dirty data buffers. */
++	rc = fsg_lun_fsync_sub(curlun);
++	if (rc)
++		curlun->sense_data = SS_WRITE_ERROR;
++	return 0;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static void invalidate_sub(struct fsg_lun *curlun)
++{
++	struct file	*filp = curlun->filp;
++	struct inode	*inode = filp->f_path.dentry->d_inode;
++	unsigned long	rc;
++
++	rc = invalidate_mapping_pages(inode->i_mapping, 0, -1);
++	VLDBG(curlun, "invalidate_mapping_pages -> %ld\n", rc);
++}
++
++static int do_verify(struct fsg_dev *fsg)
++{
++	struct fsg_lun		*curlun = fsg->curlun;
++	u32			lba;
++	u32			verification_length;
++	struct fsg_buffhd	*bh = fsg->next_buffhd_to_fill;
++	loff_t			file_offset, file_offset_tmp;
++	u32			amount_left;
++	unsigned int		amount;
++	ssize_t			nread;
++
++	/* Get the starting Logical Block Address and check that it's
++	 * not too big */
++	lba = get_unaligned_be32(&fsg->cmnd[2]);
++	if (lba >= curlun->num_sectors) {
++		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++		return -EINVAL;
++	}
++
++	/* We allow DPO (Disable Page Out = don't save data in the
++	 * cache) but we don't implement it. */
++	if ((fsg->cmnd[1] & ~0x10) != 0) {
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	verification_length = get_unaligned_be16(&fsg->cmnd[7]);
++	if (unlikely(verification_length == 0))
++		return -EIO;		// No default reply
++
++	/* Prepare to carry out the file verify */
++	amount_left = verification_length << curlun->blkbits;
++	file_offset = ((loff_t) lba) << curlun->blkbits;
++
++	/* Write out all the dirty buffers before invalidating them */
++	fsg_lun_fsync_sub(curlun);
++	if (signal_pending(current))
++		return -EINTR;
++
++	invalidate_sub(curlun);
++	if (signal_pending(current))
++		return -EINTR;
++
++	/* Just try to read the requested blocks */
++	while (amount_left > 0) {
++
++		/* Figure out how much we need to read:
++		 * Try to read the remaining amount, but not more than
++		 * the buffer size.
++		 * And don't try to read past the end of the file.
++		 */
++		amount = min((unsigned int) amount_left, mod_data.buflen);
++		amount = min((loff_t) amount,
++				curlun->file_length - file_offset);
++		if (amount == 0) {
++			curlun->sense_data =
++					SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++			curlun->sense_data_info = file_offset >> curlun->blkbits;
++			curlun->info_valid = 1;
++			break;
++		}
++
++		/* Perform the read */
++		file_offset_tmp = file_offset;
++		nread = vfs_read(curlun->filp,
++				(char __user *) bh->buf,
++				amount, &file_offset_tmp);
++		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
++				(unsigned long long) file_offset,
++				(int) nread);
++		if (signal_pending(current))
++			return -EINTR;
++
++		if (nread < 0) {
++			LDBG(curlun, "error in file verify: %d\n",
++					(int) nread);
++			nread = 0;
++		} else if (nread < amount) {
++			LDBG(curlun, "partial file verify: %d/%u\n",
++					(int) nread, amount);
++			nread = round_down(nread, curlun->blksize);
++		}
++		if (nread == 0) {
++			curlun->sense_data = SS_UNRECOVERED_READ_ERROR;
++			curlun->sense_data_info = file_offset >> curlun->blkbits;
++			curlun->info_valid = 1;
++			break;
++		}
++		file_offset += nread;
++		amount_left -= nread;
++	}
++	return 0;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int do_inquiry(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	u8	*buf = (u8 *) bh->buf;
++
++	static char vendor_id[] = "Linux   ";
++	static char product_disk_id[] = "File-Stor Gadget";
++	static char product_cdrom_id[] = "File-CD Gadget  ";
++
++	if (!fsg->curlun) {		// Unsupported LUNs are okay
++		fsg->bad_lun_okay = 1;
++		memset(buf, 0, 36);
++		buf[0] = 0x7f;		// Unsupported, no device-type
++		buf[4] = 31;		// Additional length
++		return 36;
++	}
++
++	memset(buf, 0, 8);
++	buf[0] = (mod_data.cdrom ? TYPE_ROM : TYPE_DISK);
++	if (mod_data.removable)
++		buf[1] = 0x80;
++	buf[2] = 2;		// ANSI SCSI level 2
++	buf[3] = 2;		// SCSI-2 INQUIRY data format
++	buf[4] = 31;		// Additional length
++				// No special options
++	sprintf(buf + 8, "%-8s%-16s%04x", vendor_id,
++			(mod_data.cdrom ? product_cdrom_id :
++				product_disk_id),
++			mod_data.release);
++	return 36;
++}
++
++
++static int do_request_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	u8		*buf = (u8 *) bh->buf;
++	u32		sd, sdinfo;
++	int		valid;
++
++	/*
++	 * From the SCSI-2 spec., section 7.9 (Unit attention condition):
++	 *
++	 * If a REQUEST SENSE command is received from an initiator
++	 * with a pending unit attention condition (before the target
++	 * generates the contingent allegiance condition), then the
++	 * target shall either:
++	 *   a) report any pending sense data and preserve the unit
++	 *	attention condition on the logical unit, or,
++	 *   b) report the unit attention condition, may discard any
++	 *	pending sense data, and clear the unit attention
++	 *	condition on the logical unit for that initiator.
++	 *
++	 * FSG normally uses option a); enable this code to use option b).
++	 */
++#if 0
++	if (curlun && curlun->unit_attention_data != SS_NO_SENSE) {
++		curlun->sense_data = curlun->unit_attention_data;
++		curlun->unit_attention_data = SS_NO_SENSE;
++	}
++#endif
++
++	if (!curlun) {		// Unsupported LUNs are okay
++		fsg->bad_lun_okay = 1;
++		sd = SS_LOGICAL_UNIT_NOT_SUPPORTED;
++		sdinfo = 0;
++		valid = 0;
++	} else {
++		sd = curlun->sense_data;
++		sdinfo = curlun->sense_data_info;
++		valid = curlun->info_valid << 7;
++		curlun->sense_data = SS_NO_SENSE;
++		curlun->sense_data_info = 0;
++		curlun->info_valid = 0;
++	}
++
++	memset(buf, 0, 18);
++	buf[0] = valid | 0x70;			// Valid, current error
++	buf[2] = SK(sd);
++	put_unaligned_be32(sdinfo, &buf[3]);	/* Sense information */
++	buf[7] = 18 - 8;			// Additional sense length
++	buf[12] = ASC(sd);
++	buf[13] = ASCQ(sd);
++	return 18;
++}
++
++
++static int do_read_capacity(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	u32		lba = get_unaligned_be32(&fsg->cmnd[2]);
++	int		pmi = fsg->cmnd[8];
++	u8		*buf = (u8 *) bh->buf;
++
++	/* Check the PMI and LBA fields */
++	if (pmi > 1 || (pmi == 0 && lba != 0)) {
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	put_unaligned_be32(curlun->num_sectors - 1, &buf[0]);
++						/* Max logical block */
++	put_unaligned_be32(curlun->blksize, &buf[4]);	/* Block length */
++	return 8;
++}
++
++
++static int do_read_header(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		msf = fsg->cmnd[1] & 0x02;
++	u32		lba = get_unaligned_be32(&fsg->cmnd[2]);
++	u8		*buf = (u8 *) bh->buf;
++
++	if ((fsg->cmnd[1] & ~0x02) != 0) {		/* Mask away MSF */
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++	if (lba >= curlun->num_sectors) {
++		curlun->sense_data = SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
++		return -EINVAL;
++	}
++
++	memset(buf, 0, 8);
++	buf[0] = 0x01;		/* 2048 bytes of user data, rest is EC */
++	store_cdrom_address(&buf[4], msf, lba);
++	return 8;
++}
++
++
++static int do_read_toc(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		msf = fsg->cmnd[1] & 0x02;
++	int		start_track = fsg->cmnd[6];
++	u8		*buf = (u8 *) bh->buf;
++
++	if ((fsg->cmnd[1] & ~0x02) != 0 ||		/* Mask away MSF */
++			start_track > 1) {
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	memset(buf, 0, 20);
++	buf[1] = (20-2);		/* TOC data length */
++	buf[2] = 1;			/* First track number */
++	buf[3] = 1;			/* Last track number */
++	buf[5] = 0x16;			/* Data track, copying allowed */
++	buf[6] = 0x01;			/* Only track is number 1 */
++	store_cdrom_address(&buf[8], msf, 0);
++
++	buf[13] = 0x16;			/* Lead-out track is data */
++	buf[14] = 0xAA;			/* Lead-out track number */
++	store_cdrom_address(&buf[16], msf, curlun->num_sectors);
++	return 20;
++}
++
++
++static int do_mode_sense(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		mscmnd = fsg->cmnd[0];
++	u8		*buf = (u8 *) bh->buf;
++	u8		*buf0 = buf;
++	int		pc, page_code;
++	int		changeable_values, all_pages;
++	int		valid_page = 0;
++	int		len, limit;
++
++	if ((fsg->cmnd[1] & ~0x08) != 0) {		// Mask away DBD
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++	pc = fsg->cmnd[2] >> 6;
++	page_code = fsg->cmnd[2] & 0x3f;
++	if (pc == 3) {
++		curlun->sense_data = SS_SAVING_PARAMETERS_NOT_SUPPORTED;
++		return -EINVAL;
++	}
++	changeable_values = (pc == 1);
++	all_pages = (page_code == 0x3f);
++
++	/* Write the mode parameter header.  Fixed values are: default
++	 * medium type, no cache control (DPOFUA), and no block descriptors.
++	 * The only variable value is the WriteProtect bit.  We will fill in
++	 * the mode data length later. */
++	memset(buf, 0, 8);
++	if (mscmnd == MODE_SENSE) {
++		buf[2] = (curlun->ro ? 0x80 : 0x00);		// WP, DPOFUA
++		buf += 4;
++		limit = 255;
++	} else {			// MODE_SENSE_10
++		buf[3] = (curlun->ro ? 0x80 : 0x00);		// WP, DPOFUA
++		buf += 8;
++		limit = 65535;		// Should really be mod_data.buflen
++	}
++
++	/* No block descriptors */
++
++	/* The mode pages, in numerical order.  The only page we support
++	 * is the Caching page. */
++	if (page_code == 0x08 || all_pages) {
++		valid_page = 1;
++		buf[0] = 0x08;		// Page code
++		buf[1] = 10;		// Page length
++		memset(buf+2, 0, 10);	// None of the fields are changeable
++
++		if (!changeable_values) {
++			buf[2] = 0x04;	// Write cache enable,
++					// Read cache not disabled
++					// No cache retention priorities
++			put_unaligned_be16(0xffff, &buf[4]);
++					/* Don't disable prefetch */
++					/* Minimum prefetch = 0 */
++			put_unaligned_be16(0xffff, &buf[8]);
++					/* Maximum prefetch */
++			put_unaligned_be16(0xffff, &buf[10]);
++					/* Maximum prefetch ceiling */
++		}
++		buf += 12;
++	}
++
++	/* Check that a valid page was requested and the mode data length
++	 * isn't too long. */
++	len = buf - buf0;
++	if (!valid_page || len > limit) {
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	/*  Store the mode data length */
++	if (mscmnd == MODE_SENSE)
++		buf0[0] = len - 1;
++	else
++		put_unaligned_be16(len - 2, buf0);
++	return len;
++}
++
++
++static int do_start_stop(struct fsg_dev *fsg)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		loej, start;
++
++	if (!mod_data.removable) {
++		curlun->sense_data = SS_INVALID_COMMAND;
++		return -EINVAL;
++	}
++
++	// int immed = fsg->cmnd[1] & 0x01;
++	loej = fsg->cmnd[4] & 0x02;
++	start = fsg->cmnd[4] & 0x01;
++
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++	if ((fsg->cmnd[1] & ~0x01) != 0 ||		// Mask away Immed
++			(fsg->cmnd[4] & ~0x03) != 0) {	// Mask LoEj, Start
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	if (!start) {
++
++		/* Are we allowed to unload the media? */
++		if (curlun->prevent_medium_removal) {
++			LDBG(curlun, "unload attempt prevented\n");
++			curlun->sense_data = SS_MEDIUM_REMOVAL_PREVENTED;
++			return -EINVAL;
++		}
++		if (loej) {		// Simulate an unload/eject
++			up_read(&fsg->filesem);
++			down_write(&fsg->filesem);
++			fsg_lun_close(curlun);
++			up_write(&fsg->filesem);
++			down_read(&fsg->filesem);
++		}
++	} else {
++
++		/* Our emulation doesn't support mounting; the medium is
++		 * available for use as soon as it is loaded. */
++		if (!fsg_lun_is_open(curlun)) {
++			curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
++			return -EINVAL;
++		}
++	}
++#endif
++	return 0;
++}
++
++
++static int do_prevent_allow(struct fsg_dev *fsg)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	int		prevent;
++
++	if (!mod_data.removable) {
++		curlun->sense_data = SS_INVALID_COMMAND;
++		return -EINVAL;
++	}
++
++	prevent = fsg->cmnd[4] & 0x01;
++	if ((fsg->cmnd[4] & ~0x01) != 0) {		// Mask away Prevent
++		curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++		return -EINVAL;
++	}
++
++	if (curlun->prevent_medium_removal && !prevent)
++		fsg_lun_fsync_sub(curlun);
++	curlun->prevent_medium_removal = prevent;
++	return 0;
++}
++
++
++static int do_read_format_capacities(struct fsg_dev *fsg,
++			struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++	u8		*buf = (u8 *) bh->buf;
++
++	buf[0] = buf[1] = buf[2] = 0;
++	buf[3] = 8;		// Only the Current/Maximum Capacity Descriptor
++	buf += 4;
++
++	put_unaligned_be32(curlun->num_sectors, &buf[0]);
++						/* Number of blocks */
++	put_unaligned_be32(curlun->blksize, &buf[4]);	/* Block length */
++	buf[4] = 0x02;				/* Current capacity */
++	return 12;
++}
++
++
++static int do_mode_select(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct fsg_lun	*curlun = fsg->curlun;
++
++	/* We don't support MODE SELECT */
++	curlun->sense_data = SS_INVALID_COMMAND;
++	return -EINVAL;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int halt_bulk_in_endpoint(struct fsg_dev *fsg)
++{
++	int	rc;
++
++	rc = fsg_set_halt(fsg, fsg->bulk_in);
++	if (rc == -EAGAIN)
++		VDBG(fsg, "delayed bulk-in endpoint halt\n");
++	while (rc != 0) {
++		if (rc != -EAGAIN) {
++			WARNING(fsg, "usb_ep_set_halt -> %d\n", rc);
++			rc = 0;
++			break;
++		}
++
++		/* Wait for a short time and then try again */
++		if (msleep_interruptible(100) != 0)
++			return -EINTR;
++		rc = usb_ep_set_halt(fsg->bulk_in);
++	}
++	return rc;
++}
++
++static int wedge_bulk_in_endpoint(struct fsg_dev *fsg)
++{
++	int	rc;
++
++	DBG(fsg, "bulk-in set wedge\n");
++	rc = usb_ep_set_wedge(fsg->bulk_in);
++	if (rc == -EAGAIN)
++		VDBG(fsg, "delayed bulk-in endpoint wedge\n");
++	while (rc != 0) {
++		if (rc != -EAGAIN) {
++			WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc);
++			rc = 0;
++			break;
++		}
++
++		/* Wait for a short time and then try again */
++		if (msleep_interruptible(100) != 0)
++			return -EINTR;
++		rc = usb_ep_set_wedge(fsg->bulk_in);
++	}
++	return rc;
++}
++
++static int throw_away_data(struct fsg_dev *fsg)
++{
++	struct fsg_buffhd	*bh;
++	u32			amount;
++	int			rc;
++
++	while ((bh = fsg->next_buffhd_to_drain)->state != BUF_STATE_EMPTY ||
++			fsg->usb_amount_left > 0) {
++
++		/* Throw away the data in a filled buffer */
++		if (bh->state == BUF_STATE_FULL) {
++			smp_rmb();
++			bh->state = BUF_STATE_EMPTY;
++			fsg->next_buffhd_to_drain = bh->next;
++
++			/* A short packet or an error ends everything */
++			if (bh->outreq->actual < bh->bulk_out_intended_length ||
++					bh->outreq->status != 0) {
++				raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT);
++				return -EINTR;
++			}
++			continue;
++		}
++
++		/* Try to submit another request if we need one */
++		bh = fsg->next_buffhd_to_fill;
++		if (bh->state == BUF_STATE_EMPTY && fsg->usb_amount_left > 0) {
++			amount = min(fsg->usb_amount_left,
++					(u32) mod_data.buflen);
++
++			/* Except at the end of the transfer, amount will be
++			 * equal to the buffer size, which is divisible by
++			 * the bulk-out maxpacket size.
++			 */
++			set_bulk_out_req_length(fsg, bh, amount);
++			start_transfer(fsg, fsg->bulk_out, bh->outreq,
++					&bh->outreq_busy, &bh->state);
++			fsg->next_buffhd_to_fill = bh->next;
++			fsg->usb_amount_left -= amount;
++			continue;
++		}
++
++		/* Otherwise wait for something to happen */
++		rc = sleep_thread(fsg);
++		if (rc)
++			return rc;
++	}
++	return 0;
++}
++
++
++static int finish_reply(struct fsg_dev *fsg)
++{
++	struct fsg_buffhd	*bh = fsg->next_buffhd_to_fill;
++	int			rc = 0;
++
++	switch (fsg->data_dir) {
++	case DATA_DIR_NONE:
++		break;			// Nothing to send
++
++	/* If we don't know whether the host wants to read or write,
++	 * this must be CB or CBI with an unknown command.  We mustn't
++	 * try to send or receive any data.  So stall both bulk pipes
++	 * if we can and wait for a reset. */
++	case DATA_DIR_UNKNOWN:
++		if (mod_data.can_stall) {
++			fsg_set_halt(fsg, fsg->bulk_out);
++			rc = halt_bulk_in_endpoint(fsg);
++		}
++		break;
++
++	/* All but the last buffer of data must have already been sent */
++	case DATA_DIR_TO_HOST:
++		if (fsg->data_size == 0)
++			;		// Nothing to send
++
++		/* If there's no residue, simply send the last buffer */
++		else if (fsg->residue == 0) {
++			bh->inreq->zero = 0;
++			start_transfer(fsg, fsg->bulk_in, bh->inreq,
++					&bh->inreq_busy, &bh->state);
++			fsg->next_buffhd_to_fill = bh->next;
++		}
++
++		/* There is a residue.  For CB and CBI, simply mark the end
++		 * of the data with a short packet.  However, if we are
++		 * allowed to stall, there was no data at all (residue ==
++		 * data_size), and the command failed (invalid LUN or
++		 * sense data is set), then halt the bulk-in endpoint
++		 * instead. */
++		else if (!transport_is_bbb()) {
++			if (mod_data.can_stall &&
++					fsg->residue == fsg->data_size &&
++	(!fsg->curlun || fsg->curlun->sense_data != SS_NO_SENSE)) {
++				bh->state = BUF_STATE_EMPTY;
++				rc = halt_bulk_in_endpoint(fsg);
++			} else {
++				bh->inreq->zero = 1;
++				start_transfer(fsg, fsg->bulk_in, bh->inreq,
++						&bh->inreq_busy, &bh->state);
++				fsg->next_buffhd_to_fill = bh->next;
++			}
++		}
++
++		/*
++		 * For Bulk-only, mark the end of the data with a short
++		 * packet.  If we are allowed to stall, halt the bulk-in
++		 * endpoint.  (Note: This violates the Bulk-Only Transport
++		 * specification, which requires us to pad the data if we
++		 * don't halt the endpoint.  Presumably nobody will mind.)
++		 */
++		else {
++			bh->inreq->zero = 1;
++			start_transfer(fsg, fsg->bulk_in, bh->inreq,
++					&bh->inreq_busy, &bh->state);
++			fsg->next_buffhd_to_fill = bh->next;
++			if (mod_data.can_stall)
++				rc = halt_bulk_in_endpoint(fsg);
++		}
++		break;
++
++	/* We have processed all we want from the data the host has sent.
++	 * There may still be outstanding bulk-out requests. */
++	case DATA_DIR_FROM_HOST:
++		if (fsg->residue == 0)
++			;		// Nothing to receive
++
++		/* Did the host stop sending unexpectedly early? */
++		else if (fsg->short_packet_received) {
++			raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT);
++			rc = -EINTR;
++		}
++
++		/* We haven't processed all the incoming data.  Even though
++		 * we may be allowed to stall, doing so would cause a race.
++		 * The controller may already have ACK'ed all the remaining
++		 * bulk-out packets, in which case the host wouldn't see a
++		 * STALL.  Not realizing the endpoint was halted, it wouldn't
++		 * clear the halt -- leading to problems later on. */
++#if 0
++		else if (mod_data.can_stall) {
++			fsg_set_halt(fsg, fsg->bulk_out);
++			raise_exception(fsg, FSG_STATE_ABORT_BULK_OUT);
++			rc = -EINTR;
++		}
++#endif
++
++		/* We can't stall.  Read in the excess data and throw it
++		 * all away. */
++		else
++			rc = throw_away_data(fsg);
++		break;
++	}
++	return rc;
++}
++
++
++static int send_status(struct fsg_dev *fsg)
++{
++	struct fsg_lun		*curlun = fsg->curlun;
++	struct fsg_buffhd	*bh;
++	int			rc;
++	u8			status = US_BULK_STAT_OK;
++	u32			sd, sdinfo = 0;
++
++	/* Wait for the next buffer to become available */
++	bh = fsg->next_buffhd_to_fill;
++	while (bh->state != BUF_STATE_EMPTY) {
++		rc = sleep_thread(fsg);
++		if (rc)
++			return rc;
++	}
++
++	if (curlun) {
++		sd = curlun->sense_data;
++		sdinfo = curlun->sense_data_info;
++	} else if (fsg->bad_lun_okay)
++		sd = SS_NO_SENSE;
++	else
++		sd = SS_LOGICAL_UNIT_NOT_SUPPORTED;
++
++	if (fsg->phase_error) {
++		DBG(fsg, "sending phase-error status\n");
++		status = US_BULK_STAT_PHASE;
++		sd = SS_INVALID_COMMAND;
++	} else if (sd != SS_NO_SENSE) {
++		DBG(fsg, "sending command-failure status\n");
++		status = US_BULK_STAT_FAIL;
++		VDBG(fsg, "  sense data: SK x%02x, ASC x%02x, ASCQ x%02x;"
++				"  info x%x\n",
++				SK(sd), ASC(sd), ASCQ(sd), sdinfo);
++	}
++
++	if (transport_is_bbb()) {
++		struct bulk_cs_wrap	*csw = bh->buf;
++
++		/* Store and send the Bulk-only CSW */
++		csw->Signature = cpu_to_le32(US_BULK_CS_SIGN);
++		csw->Tag = fsg->tag;
++		csw->Residue = cpu_to_le32(fsg->residue);
++		csw->Status = status;
++
++		bh->inreq->length = US_BULK_CS_WRAP_LEN;
++		bh->inreq->zero = 0;
++		start_transfer(fsg, fsg->bulk_in, bh->inreq,
++				&bh->inreq_busy, &bh->state);
++
++	} else if (mod_data.transport_type == USB_PR_CB) {
++
++		/* Control-Bulk transport has no status phase! */
++		return 0;
++
++	} else {			// USB_PR_CBI
++		struct interrupt_data	*buf = bh->buf;
++
++		/* Store and send the Interrupt data.  UFI sends the ASC
++		 * and ASCQ bytes.  Everything else sends a Type (which
++		 * is always 0) and the status Value. */
++		if (mod_data.protocol_type == USB_SC_UFI) {
++			buf->bType = ASC(sd);
++			buf->bValue = ASCQ(sd);
++		} else {
++			buf->bType = 0;
++			buf->bValue = status;
++		}
++		fsg->intreq->length = CBI_INTERRUPT_DATA_LEN;
++
++		fsg->intr_buffhd = bh;		// Point to the right buffhd
++		fsg->intreq->buf = bh->inreq->buf;
++		fsg->intreq->context = bh;
++		start_transfer(fsg, fsg->intr_in, fsg->intreq,
++				&fsg->intreq_busy, &bh->state);
++	}
++
++	fsg->next_buffhd_to_fill = bh->next;
++	return 0;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++/* Check whether the command is properly formed and whether its data size
++ * and direction agree with the values we already have. */
++static int check_command(struct fsg_dev *fsg, int cmnd_size,
++		enum data_direction data_dir, unsigned int mask,
++		int needs_medium, const char *name)
++{
++	int			i;
++	int			lun = fsg->cmnd[1] >> 5;
++	static const char	dirletter[4] = {'u', 'o', 'i', 'n'};
++	char			hdlen[20];
++	struct fsg_lun		*curlun;
++
++	/* Adjust the expected cmnd_size for protocol encapsulation padding.
++	 * Transparent SCSI doesn't pad. */
++	if (protocol_is_scsi())
++		;
++
++	/* There's some disagreement as to whether RBC pads commands or not.
++	 * We'll play it safe and accept either form. */
++	else if (mod_data.protocol_type == USB_SC_RBC) {
++		if (fsg->cmnd_size == 12)
++			cmnd_size = 12;
++
++	/* All the other protocols pad to 12 bytes */
++	} else
++		cmnd_size = 12;
++
++	hdlen[0] = 0;
++	if (fsg->data_dir != DATA_DIR_UNKNOWN)
++		sprintf(hdlen, ", H%c=%u", dirletter[(int) fsg->data_dir],
++				fsg->data_size);
++	VDBG(fsg, "SCSI command: %s;  Dc=%d, D%c=%u;  Hc=%d%s\n",
++			name, cmnd_size, dirletter[(int) data_dir],
++			fsg->data_size_from_cmnd, fsg->cmnd_size, hdlen);
++
++	/* We can't reply at all until we know the correct data direction
++	 * and size. */
++	if (fsg->data_size_from_cmnd == 0)
++		data_dir = DATA_DIR_NONE;
++	if (fsg->data_dir == DATA_DIR_UNKNOWN) {	// CB or CBI
++		fsg->data_dir = data_dir;
++		fsg->data_size = fsg->data_size_from_cmnd;
++
++	} else {					// Bulk-only
++		if (fsg->data_size < fsg->data_size_from_cmnd) {
++
++			/* Host data size < Device data size is a phase error.
++			 * Carry out the command, but only transfer as much
++			 * as we are allowed. */
++			fsg->data_size_from_cmnd = fsg->data_size;
++			fsg->phase_error = 1;
++		}
++	}
++	fsg->residue = fsg->usb_amount_left = fsg->data_size;
++
++	/* Conflicting data directions is a phase error */
++	if (fsg->data_dir != data_dir && fsg->data_size_from_cmnd > 0) {
++		fsg->phase_error = 1;
++		return -EINVAL;
++	}
++
++	/* Verify the length of the command itself */
++	if (cmnd_size != fsg->cmnd_size) {
++
++		/* Special case workaround: There are plenty of buggy SCSI
++		 * implementations. Many have issues with cbw->Length
++		 * field passing a wrong command size. For those cases we
++		 * always try to work around the problem by using the length
++		 * sent by the host side provided it is at least as large
++		 * as the correct command length.
++		 * Examples of such cases would be MS-Windows, which issues
++		 * REQUEST SENSE with cbw->Length == 12 where it should
++		 * be 6, and xbox360 issuing INQUIRY, TEST UNIT READY and
++		 * REQUEST SENSE with cbw->Length == 10 where it should
++		 * be 6 as well.
++		 */
++		if (cmnd_size <= fsg->cmnd_size) {
++			DBG(fsg, "%s is buggy! Expected length %d "
++					"but we got %d\n", name,
++					cmnd_size, fsg->cmnd_size);
++			cmnd_size = fsg->cmnd_size;
++		} else {
++			fsg->phase_error = 1;
++			return -EINVAL;
++		}
++	}
++
++	/* Check that the LUN values are consistent */
++	if (transport_is_bbb()) {
++		if (fsg->lun != lun)
++			DBG(fsg, "using LUN %d from CBW, "
++					"not LUN %d from CDB\n",
++					fsg->lun, lun);
++	}
++
++	/* Check the LUN */
++	curlun = fsg->curlun;
++	if (curlun) {
++		if (fsg->cmnd[0] != REQUEST_SENSE) {
++			curlun->sense_data = SS_NO_SENSE;
++			curlun->sense_data_info = 0;
++			curlun->info_valid = 0;
++		}
++	} else {
++		fsg->bad_lun_okay = 0;
++
++		/* INQUIRY and REQUEST SENSE commands are explicitly allowed
++		 * to use unsupported LUNs; all others may not. */
++		if (fsg->cmnd[0] != INQUIRY &&
++				fsg->cmnd[0] != REQUEST_SENSE) {
++			DBG(fsg, "unsupported LUN %d\n", fsg->lun);
++			return -EINVAL;
++		}
++	}
++
++	/* If a unit attention condition exists, only INQUIRY and
++	 * REQUEST SENSE commands are allowed; anything else must fail. */
++	if (curlun && curlun->unit_attention_data != SS_NO_SENSE &&
++			fsg->cmnd[0] != INQUIRY &&
++			fsg->cmnd[0] != REQUEST_SENSE) {
++		curlun->sense_data = curlun->unit_attention_data;
++		curlun->unit_attention_data = SS_NO_SENSE;
++		return -EINVAL;
++	}
++
++	/* Check that only command bytes listed in the mask are non-zero */
++	fsg->cmnd[1] &= 0x1f;			// Mask away the LUN
++	for (i = 1; i < cmnd_size; ++i) {
++		if (fsg->cmnd[i] && !(mask & (1 << i))) {
++			if (curlun)
++				curlun->sense_data = SS_INVALID_FIELD_IN_CDB;
++			return -EINVAL;
++		}
++	}
++
++	/* If the medium isn't mounted and the command needs to access
++	 * it, return an error. */
++	if (curlun && !fsg_lun_is_open(curlun) && needs_medium) {
++		curlun->sense_data = SS_MEDIUM_NOT_PRESENT;
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++/* wrapper of check_command for data size in blocks handling */
++static int check_command_size_in_blocks(struct fsg_dev *fsg, int cmnd_size,
++		enum data_direction data_dir, unsigned int mask,
++		int needs_medium, const char *name)
++{
++	if (fsg->curlun)
++		fsg->data_size_from_cmnd <<= fsg->curlun->blkbits;
++	return check_command(fsg, cmnd_size, data_dir,
++			mask, needs_medium, name);
++}
++
++static int do_scsi_command(struct fsg_dev *fsg)
++{
++	struct fsg_buffhd	*bh;
++	int			rc;
++	int			reply = -EINVAL;
++	int			i;
++	static char		unknown[16];
++
++	dump_cdb(fsg);
++
++	/* Wait for the next buffer to become available for data or status */
++	bh = fsg->next_buffhd_to_drain = fsg->next_buffhd_to_fill;
++	while (bh->state != BUF_STATE_EMPTY) {
++		rc = sleep_thread(fsg);
++		if (rc)
++			return rc;
++	}
++	fsg->phase_error = 0;
++	fsg->short_packet_received = 0;
++
++	down_read(&fsg->filesem);	// We're using the backing file
++	switch (fsg->cmnd[0]) {
++
++	case INQUIRY:
++		fsg->data_size_from_cmnd = fsg->cmnd[4];
++		if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST,
++				(1<<4), 0,
++				"INQUIRY")) == 0)
++			reply = do_inquiry(fsg, bh);
++		break;
++
++	case MODE_SELECT:
++		fsg->data_size_from_cmnd = fsg->cmnd[4];
++		if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST,
++				(1<<1) | (1<<4), 0,
++				"MODE SELECT(6)")) == 0)
++			reply = do_mode_select(fsg, bh);
++		break;
++
++	case MODE_SELECT_10:
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST,
++				(1<<1) | (3<<7), 0,
++				"MODE SELECT(10)")) == 0)
++			reply = do_mode_select(fsg, bh);
++		break;
++
++	case MODE_SENSE:
++		fsg->data_size_from_cmnd = fsg->cmnd[4];
++		if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST,
++				(1<<1) | (1<<2) | (1<<4), 0,
++				"MODE SENSE(6)")) == 0)
++			reply = do_mode_sense(fsg, bh);
++		break;
++
++	case MODE_SENSE_10:
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
++				(1<<1) | (1<<2) | (3<<7), 0,
++				"MODE SENSE(10)")) == 0)
++			reply = do_mode_sense(fsg, bh);
++		break;
++
++	case ALLOW_MEDIUM_REMOVAL:
++		fsg->data_size_from_cmnd = 0;
++		if ((reply = check_command(fsg, 6, DATA_DIR_NONE,
++				(1<<4), 0,
++				"PREVENT-ALLOW MEDIUM REMOVAL")) == 0)
++			reply = do_prevent_allow(fsg);
++		break;
++
++	case READ_6:
++		i = fsg->cmnd[4];
++		fsg->data_size_from_cmnd = (i == 0) ? 256 : i;
++		if ((reply = check_command_size_in_blocks(fsg, 6,
++				DATA_DIR_TO_HOST,
++				(7<<1) | (1<<4), 1,
++				"READ(6)")) == 0)
++			reply = do_read(fsg);
++		break;
++
++	case READ_10:
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command_size_in_blocks(fsg, 10,
++				DATA_DIR_TO_HOST,
++				(1<<1) | (0xf<<2) | (3<<7), 1,
++				"READ(10)")) == 0)
++			reply = do_read(fsg);
++		break;
++
++	case READ_12:
++		fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]);
++		if ((reply = check_command_size_in_blocks(fsg, 12,
++				DATA_DIR_TO_HOST,
++				(1<<1) | (0xf<<2) | (0xf<<6), 1,
++				"READ(12)")) == 0)
++			reply = do_read(fsg);
++		break;
++
++	case READ_CAPACITY:
++		fsg->data_size_from_cmnd = 8;
++		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
++				(0xf<<2) | (1<<8), 1,
++				"READ CAPACITY")) == 0)
++			reply = do_read_capacity(fsg, bh);
++		break;
++
++	case READ_HEADER:
++		if (!mod_data.cdrom)
++			goto unknown_cmnd;
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
++				(3<<7) | (0x1f<<1), 1,
++				"READ HEADER")) == 0)
++			reply = do_read_header(fsg, bh);
++		break;
++
++	case READ_TOC:
++		if (!mod_data.cdrom)
++			goto unknown_cmnd;
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
++				(7<<6) | (1<<1), 1,
++				"READ TOC")) == 0)
++			reply = do_read_toc(fsg, bh);
++		break;
++
++	case READ_FORMAT_CAPACITIES:
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
++				(3<<7), 1,
++				"READ FORMAT CAPACITIES")) == 0)
++			reply = do_read_format_capacities(fsg, bh);
++		break;
++
++	case REQUEST_SENSE:
++		fsg->data_size_from_cmnd = fsg->cmnd[4];
++		if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST,
++				(1<<4), 0,
++				"REQUEST SENSE")) == 0)
++			reply = do_request_sense(fsg, bh);
++		break;
++
++	case START_STOP:
++		fsg->data_size_from_cmnd = 0;
++		if ((reply = check_command(fsg, 6, DATA_DIR_NONE,
++				(1<<1) | (1<<4), 0,
++				"START-STOP UNIT")) == 0)
++			reply = do_start_stop(fsg);
++		break;
++
++	case SYNCHRONIZE_CACHE:
++		fsg->data_size_from_cmnd = 0;
++		if ((reply = check_command(fsg, 10, DATA_DIR_NONE,
++				(0xf<<2) | (3<<7), 1,
++				"SYNCHRONIZE CACHE")) == 0)
++			reply = do_synchronize_cache(fsg);
++		break;
++
++	case TEST_UNIT_READY:
++		fsg->data_size_from_cmnd = 0;
++		reply = check_command(fsg, 6, DATA_DIR_NONE,
++				0, 1,
++				"TEST UNIT READY");
++		break;
++
++	/* Although optional, this command is used by MS-Windows.  We
++	 * support a minimal version: BytChk must be 0. */
++	case VERIFY:
++		fsg->data_size_from_cmnd = 0;
++		if ((reply = check_command(fsg, 10, DATA_DIR_NONE,
++				(1<<1) | (0xf<<2) | (3<<7), 1,
++				"VERIFY")) == 0)
++			reply = do_verify(fsg);
++		break;
++
++	case WRITE_6:
++		i = fsg->cmnd[4];
++		fsg->data_size_from_cmnd = (i == 0) ? 256 : i;
++		if ((reply = check_command_size_in_blocks(fsg, 6,
++				DATA_DIR_FROM_HOST,
++				(7<<1) | (1<<4), 1,
++				"WRITE(6)")) == 0)
++			reply = do_write(fsg);
++		break;
++
++	case WRITE_10:
++		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
++		if ((reply = check_command_size_in_blocks(fsg, 10,
++				DATA_DIR_FROM_HOST,
++				(1<<1) | (0xf<<2) | (3<<7), 1,
++				"WRITE(10)")) == 0)
++			reply = do_write(fsg);
++		break;
++
++	case WRITE_12:
++		fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]);
++		if ((reply = check_command_size_in_blocks(fsg, 12,
++				DATA_DIR_FROM_HOST,
++				(1<<1) | (0xf<<2) | (0xf<<6), 1,
++				"WRITE(12)")) == 0)
++			reply = do_write(fsg);
++		break;
++
++	/* Some mandatory commands that we recognize but don't implement.
++	 * They don't mean much in this setting.  It's left as an exercise
++	 * for anyone interested to implement RESERVE and RELEASE in terms
++	 * of Posix locks. */
++	case FORMAT_UNIT:
++	case RELEASE:
++	case RESERVE:
++	case SEND_DIAGNOSTIC:
++		// Fall through
++
++	default:
++ unknown_cmnd:
++		fsg->data_size_from_cmnd = 0;
++		sprintf(unknown, "Unknown x%02x", fsg->cmnd[0]);
++		if ((reply = check_command(fsg, fsg->cmnd_size,
++				DATA_DIR_UNKNOWN, ~0, 0, unknown)) == 0) {
++			fsg->curlun->sense_data = SS_INVALID_COMMAND;
++			reply = -EINVAL;
++		}
++		break;
++	}
++	up_read(&fsg->filesem);
++
++	if (reply == -EINTR || signal_pending(current))
++		return -EINTR;
++
++	/* Set up the single reply buffer for finish_reply() */
++	if (reply == -EINVAL)
++		reply = 0;		// Error reply length
++	if (reply >= 0 && fsg->data_dir == DATA_DIR_TO_HOST) {
++		reply = min((u32) reply, fsg->data_size_from_cmnd);
++		bh->inreq->length = reply;
++		bh->state = BUF_STATE_FULL;
++		fsg->residue -= reply;
++	}				// Otherwise it's already set
++
++	return 0;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
++{
++	struct usb_request		*req = bh->outreq;
++	struct bulk_cb_wrap	*cbw = req->buf;
++
++	/* Was this a real packet?  Should it be ignored? */
++	if (req->status || test_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))
++		return -EINVAL;
++
++	/* Is the CBW valid? */
++	if (req->actual != US_BULK_CB_WRAP_LEN ||
++			cbw->Signature != cpu_to_le32(
++				US_BULK_CB_SIGN)) {
++		DBG(fsg, "invalid CBW: len %u sig 0x%x\n",
++				req->actual,
++				le32_to_cpu(cbw->Signature));
++
++		/* The Bulk-only spec says we MUST stall the IN endpoint
++		 * (6.6.1), so it's unavoidable.  It also says we must
++		 * retain this state until the next reset, but there's
++		 * no way to tell the controller driver it should ignore
++		 * Clear-Feature(HALT) requests.
++		 *
++		 * We aren't required to halt the OUT endpoint; instead
++		 * we can simply accept and discard any data received
++		 * until the next reset. */
++		wedge_bulk_in_endpoint(fsg);
++		set_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
++		return -EINVAL;
++	}
++
++	/* Is the CBW meaningful? */
++	if (cbw->Lun >= FSG_MAX_LUNS || cbw->Flags & ~US_BULK_FLAG_IN ||
++			cbw->Length <= 0 || cbw->Length > MAX_COMMAND_SIZE) {
++		DBG(fsg, "non-meaningful CBW: lun = %u, flags = 0x%x, "
++				"cmdlen %u\n",
++				cbw->Lun, cbw->Flags, cbw->Length);
++
++		/* We can do anything we want here, so let's stall the
++		 * bulk pipes if we are allowed to. */
++		if (mod_data.can_stall) {
++			fsg_set_halt(fsg, fsg->bulk_out);
++			halt_bulk_in_endpoint(fsg);
++		}
++		return -EINVAL;
++	}
++
++	/* Save the command for later */
++	fsg->cmnd_size = cbw->Length;
++	memcpy(fsg->cmnd, cbw->CDB, fsg->cmnd_size);
++	if (cbw->Flags & US_BULK_FLAG_IN)
++		fsg->data_dir = DATA_DIR_TO_HOST;
++	else
++		fsg->data_dir = DATA_DIR_FROM_HOST;
++	fsg->data_size = le32_to_cpu(cbw->DataTransferLength);
++	if (fsg->data_size == 0)
++		fsg->data_dir = DATA_DIR_NONE;
++	fsg->lun = cbw->Lun;
++	fsg->tag = cbw->Tag;
++	return 0;
++}
++
++
++static int get_next_command(struct fsg_dev *fsg)
++{
++	struct fsg_buffhd	*bh;
++	int			rc = 0;
++
++	if (transport_is_bbb()) {
++
++		/* Wait for the next buffer to become available */
++		bh = fsg->next_buffhd_to_fill;
++		while (bh->state != BUF_STATE_EMPTY) {
++			rc = sleep_thread(fsg);
++			if (rc)
++				return rc;
++		}
++
++		/* Queue a request to read a Bulk-only CBW */
++		set_bulk_out_req_length(fsg, bh, US_BULK_CB_WRAP_LEN);
++		start_transfer(fsg, fsg->bulk_out, bh->outreq,
++				&bh->outreq_busy, &bh->state);
++
++		/* We will drain the buffer in software, which means we
++		 * can reuse it for the next filling.  No need to advance
++		 * next_buffhd_to_fill. */
++
++		/* Wait for the CBW to arrive */
++		while (bh->state != BUF_STATE_FULL) {
++			rc = sleep_thread(fsg);
++			if (rc)
++				return rc;
++		}
++		smp_rmb();
++		rc = received_cbw(fsg, bh);
++		bh->state = BUF_STATE_EMPTY;
++
++	} else {		// USB_PR_CB or USB_PR_CBI
++
++		/* Wait for the next command to arrive */
++		while (fsg->cbbuf_cmnd_size == 0) {
++			rc = sleep_thread(fsg);
++			if (rc)
++				return rc;
++		}
++
++		/* Is the previous status interrupt request still busy?
++		 * The host is allowed to skip reading the status,
++		 * so we must cancel it. */
++		if (fsg->intreq_busy)
++			usb_ep_dequeue(fsg->intr_in, fsg->intreq);
++
++		/* Copy the command and mark the buffer empty */
++		fsg->data_dir = DATA_DIR_UNKNOWN;
++		spin_lock_irq(&fsg->lock);
++		fsg->cmnd_size = fsg->cbbuf_cmnd_size;
++		memcpy(fsg->cmnd, fsg->cbbuf_cmnd, fsg->cmnd_size);
++		fsg->cbbuf_cmnd_size = 0;
++		spin_unlock_irq(&fsg->lock);
++
++		/* Use LUN from the command */
++		fsg->lun = fsg->cmnd[1] >> 5;
++	}
++
++	/* Update current lun */
++	if (fsg->lun >= 0 && fsg->lun < fsg->nluns)
++		fsg->curlun = &fsg->luns[fsg->lun];
++	else
++		fsg->curlun = NULL;
++
++	return rc;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int enable_endpoint(struct fsg_dev *fsg, struct usb_ep *ep,
++		const struct usb_endpoint_descriptor *d)
++{
++	int	rc;
++
++	ep->driver_data = fsg;
++	ep->desc = d;
++	rc = usb_ep_enable(ep);
++	if (rc)
++		ERROR(fsg, "can't enable %s, result %d\n", ep->name, rc);
++	return rc;
++}
++
++static int alloc_request(struct fsg_dev *fsg, struct usb_ep *ep,
++		struct usb_request **preq)
++{
++	*preq = usb_ep_alloc_request(ep, GFP_ATOMIC);
++	if (*preq)
++		return 0;
++	ERROR(fsg, "can't allocate request for %s\n", ep->name);
++	return -ENOMEM;
++}
++
++/*
++ * Reset interface setting and re-init endpoint state (toggle etc).
++ * Call with altsetting < 0 to disable the interface.  The only other
++ * available altsetting is 0, which enables the interface.
++ */
++static int do_set_interface(struct fsg_dev *fsg, int altsetting)
++{
++	int	rc = 0;
++	int	i;
++	const struct usb_endpoint_descriptor	*d;
++
++	if (fsg->running)
++		DBG(fsg, "reset interface\n");
++
++reset:
++	/* Deallocate the requests */
++	for (i = 0; i < fsg_num_buffers; ++i) {
++		struct fsg_buffhd *bh = &fsg->buffhds[i];
++
++		if (bh->inreq) {
++			usb_ep_free_request(fsg->bulk_in, bh->inreq);
++			bh->inreq = NULL;
++		}
++		if (bh->outreq) {
++			usb_ep_free_request(fsg->bulk_out, bh->outreq);
++			bh->outreq = NULL;
++		}
++	}
++	if (fsg->intreq) {
++		usb_ep_free_request(fsg->intr_in, fsg->intreq);
++		fsg->intreq = NULL;
++	}
++
++	/* Disable the endpoints */
++	if (fsg->bulk_in_enabled) {
++		usb_ep_disable(fsg->bulk_in);
++		fsg->bulk_in_enabled = 0;
++	}
++	if (fsg->bulk_out_enabled) {
++		usb_ep_disable(fsg->bulk_out);
++		fsg->bulk_out_enabled = 0;
++	}
++	if (fsg->intr_in_enabled) {
++		usb_ep_disable(fsg->intr_in);
++		fsg->intr_in_enabled = 0;
++	}
++
++	fsg->running = 0;
++	if (altsetting < 0 || rc != 0)
++		return rc;
++
++	DBG(fsg, "set interface %d\n", altsetting);
++
++	/* Enable the endpoints */
++	d = fsg_ep_desc(fsg->gadget,
++			&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc,
++			&fsg_ss_bulk_in_desc);
++	if ((rc = enable_endpoint(fsg, fsg->bulk_in, d)) != 0)
++		goto reset;
++	fsg->bulk_in_enabled = 1;
++
++	d = fsg_ep_desc(fsg->gadget,
++			&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc,
++			&fsg_ss_bulk_out_desc);
++	if ((rc = enable_endpoint(fsg, fsg->bulk_out, d)) != 0)
++		goto reset;
++	fsg->bulk_out_enabled = 1;
++	fsg->bulk_out_maxpacket = usb_endpoint_maxp(d);
++	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
++
++	if (transport_is_cbi()) {
++		d = fsg_ep_desc(fsg->gadget,
++				&fsg_fs_intr_in_desc, &fsg_hs_intr_in_desc,
++				&fsg_ss_intr_in_desc);
++		if ((rc = enable_endpoint(fsg, fsg->intr_in, d)) != 0)
++			goto reset;
++		fsg->intr_in_enabled = 1;
++	}
++
++	/* Allocate the requests */
++	for (i = 0; i < fsg_num_buffers; ++i) {
++		struct fsg_buffhd	*bh = &fsg->buffhds[i];
++
++		if ((rc = alloc_request(fsg, fsg->bulk_in, &bh->inreq)) != 0)
++			goto reset;
++		if ((rc = alloc_request(fsg, fsg->bulk_out, &bh->outreq)) != 0)
++			goto reset;
++		bh->inreq->buf = bh->outreq->buf = bh->buf;
++		bh->inreq->context = bh->outreq->context = bh;
++		bh->inreq->complete = bulk_in_complete;
++		bh->outreq->complete = bulk_out_complete;
++	}
++	if (transport_is_cbi()) {
++		if ((rc = alloc_request(fsg, fsg->intr_in, &fsg->intreq)) != 0)
++			goto reset;
++		fsg->intreq->complete = intr_in_complete;
++	}
++
++	fsg->running = 1;
++	for (i = 0; i < fsg->nluns; ++i)
++		fsg->luns[i].unit_attention_data = SS_RESET_OCCURRED;
++	return rc;
++}
++
++
++/*
++ * Change our operational configuration.  This code must agree with the code
++ * that returns config descriptors, and with interface altsetting code.
++ *
++ * It's also responsible for power management interactions.  Some
++ * configurations might not work with our current power sources.
++ * For now we just assume the gadget is always self-powered.
++ */
++static int do_set_config(struct fsg_dev *fsg, u8 new_config)
++{
++	int	rc = 0;
++
++	/* Disable the single interface */
++	if (fsg->config != 0) {
++		DBG(fsg, "reset config\n");
++		fsg->config = 0;
++		rc = do_set_interface(fsg, -1);
++	}
++
++	/* Enable the interface */
++	if (new_config != 0) {
++		fsg->config = new_config;
++		if ((rc = do_set_interface(fsg, 0)) != 0)
++			fsg->config = 0;	// Reset on errors
++		else
++			INFO(fsg, "%s config #%d\n",
++			     usb_speed_string(fsg->gadget->speed),
++			     fsg->config);
++	}
++	return rc;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static void handle_exception(struct fsg_dev *fsg)
++{
++	siginfo_t		info;
++	int			sig;
++	int			i;
++	int			num_active;
++	struct fsg_buffhd	*bh;
++	enum fsg_state		old_state;
++	u8			new_config;
++	struct fsg_lun		*curlun;
++	unsigned int		exception_req_tag;
++	int			rc;
++
++	/* Clear the existing signals.  Anything but SIGUSR1 is converted
++	 * into a high-priority EXIT exception. */
++	for (;;) {
++		sig = dequeue_signal_lock(current, &current->blocked, &info);
++		if (!sig)
++			break;
++		if (sig != SIGUSR1) {
++			if (fsg->state < FSG_STATE_EXIT)
++				DBG(fsg, "Main thread exiting on signal\n");
++			raise_exception(fsg, FSG_STATE_EXIT);
++		}
++	}
++
++	/* Cancel all the pending transfers */
++	if (fsg->intreq_busy)
++		usb_ep_dequeue(fsg->intr_in, fsg->intreq);
++	for (i = 0; i < fsg_num_buffers; ++i) {
++		bh = &fsg->buffhds[i];
++		if (bh->inreq_busy)
++			usb_ep_dequeue(fsg->bulk_in, bh->inreq);
++		if (bh->outreq_busy)
++			usb_ep_dequeue(fsg->bulk_out, bh->outreq);
++	}
++
++	/* Wait until everything is idle */
++	for (;;) {
++		num_active = fsg->intreq_busy;
++		for (i = 0; i < fsg_num_buffers; ++i) {
++			bh = &fsg->buffhds[i];
++			num_active += bh->inreq_busy + bh->outreq_busy;
++		}
++		if (num_active == 0)
++			break;
++		if (sleep_thread(fsg))
++			return;
++	}
++
++	/* Clear out the controller's fifos */
++	if (fsg->bulk_in_enabled)
++		usb_ep_fifo_flush(fsg->bulk_in);
++	if (fsg->bulk_out_enabled)
++		usb_ep_fifo_flush(fsg->bulk_out);
++	if (fsg->intr_in_enabled)
++		usb_ep_fifo_flush(fsg->intr_in);
++
++	/* Reset the I/O buffer states and pointers, the SCSI
++	 * state, and the exception.  Then invoke the handler. */
++	spin_lock_irq(&fsg->lock);
++
++	for (i = 0; i < fsg_num_buffers; ++i) {
++		bh = &fsg->buffhds[i];
++		bh->state = BUF_STATE_EMPTY;
++	}
++	fsg->next_buffhd_to_fill = fsg->next_buffhd_to_drain =
++			&fsg->buffhds[0];
++
++	exception_req_tag = fsg->exception_req_tag;
++	new_config = fsg->new_config;
++	old_state = fsg->state;
++
++	if (old_state == FSG_STATE_ABORT_BULK_OUT)
++		fsg->state = FSG_STATE_STATUS_PHASE;
++	else {
++		for (i = 0; i < fsg->nluns; ++i) {
++			curlun = &fsg->luns[i];
++			curlun->prevent_medium_removal = 0;
++			curlun->sense_data = curlun->unit_attention_data =
++					SS_NO_SENSE;
++			curlun->sense_data_info = 0;
++			curlun->info_valid = 0;
++		}
++		fsg->state = FSG_STATE_IDLE;
++	}
++	spin_unlock_irq(&fsg->lock);
++
++	/* Carry out any extra actions required for the exception */
++	switch (old_state) {
++	default:
++		break;
++
++	case FSG_STATE_ABORT_BULK_OUT:
++		send_status(fsg);
++		spin_lock_irq(&fsg->lock);
++		if (fsg->state == FSG_STATE_STATUS_PHASE)
++			fsg->state = FSG_STATE_IDLE;
++		spin_unlock_irq(&fsg->lock);
++		break;
++
++	case FSG_STATE_RESET:
++		/* In case we were forced against our will to halt a
++		 * bulk endpoint, clear the halt now.  (The SuperH UDC
++		 * requires this.) */
++		if (test_and_clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags))
++			usb_ep_clear_halt(fsg->bulk_in);
++
++		if (transport_is_bbb()) {
++			if (fsg->ep0_req_tag == exception_req_tag)
++				ep0_queue(fsg);	// Complete the status stage
++
++		} else if (transport_is_cbi())
++			send_status(fsg);	// Status by interrupt pipe
++
++		/* Technically this should go here, but it would only be
++		 * a waste of time.  Ditto for the INTERFACE_CHANGE and
++		 * CONFIG_CHANGE cases. */
++		// for (i = 0; i < fsg->nluns; ++i)
++		//	fsg->luns[i].unit_attention_data = SS_RESET_OCCURRED;
++		break;
++
++	case FSG_STATE_INTERFACE_CHANGE:
++		rc = do_set_interface(fsg, 0);
++		if (fsg->ep0_req_tag != exception_req_tag)
++			break;
++		if (rc != 0)			// STALL on errors
++			fsg_set_halt(fsg, fsg->ep0);
++		else				// Complete the status stage
++			ep0_queue(fsg);
++		break;
++
++	case FSG_STATE_CONFIG_CHANGE:
++		rc = do_set_config(fsg, new_config);
++		if (fsg->ep0_req_tag != exception_req_tag)
++			break;
++		if (rc != 0)			// STALL on errors
++			fsg_set_halt(fsg, fsg->ep0);
++		else				// Complete the status stage
++			ep0_queue(fsg);
++		break;
++
++	case FSG_STATE_DISCONNECT:
++		for (i = 0; i < fsg->nluns; ++i)
++			fsg_lun_fsync_sub(fsg->luns + i);
++		do_set_config(fsg, 0);		// Unconfigured state
++		break;
++
++	case FSG_STATE_EXIT:
++	case FSG_STATE_TERMINATED:
++		do_set_config(fsg, 0);			// Free resources
++		spin_lock_irq(&fsg->lock);
++		fsg->state = FSG_STATE_TERMINATED;	// Stop the thread
++		spin_unlock_irq(&fsg->lock);
++		break;
++	}
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static int fsg_main_thread(void *fsg_)
++{
++	struct fsg_dev		*fsg = fsg_;
++
++	/* Allow the thread to be killed by a signal, but set the signal mask
++	 * to block everything but INT, TERM, KILL, and USR1. */
++	allow_signal(SIGINT);
++	allow_signal(SIGTERM);
++	allow_signal(SIGKILL);
++	allow_signal(SIGUSR1);
++
++	/* Allow the thread to be frozen */
++	set_freezable();
++
++	/* Arrange for userspace references to be interpreted as kernel
++	 * pointers.  That way we can pass a kernel pointer to a routine
++	 * that expects a __user pointer and it will work okay. */
++	set_fs(get_ds());
++
++	/* The main loop */
++	while (fsg->state != FSG_STATE_TERMINATED) {
++		if (exception_in_progress(fsg) || signal_pending(current)) {
++			handle_exception(fsg);
++			continue;
++		}
++
++		if (!fsg->running) {
++			sleep_thread(fsg);
++			continue;
++		}
++
++		if (get_next_command(fsg))
++			continue;
++
++		spin_lock_irq(&fsg->lock);
++		if (!exception_in_progress(fsg))
++			fsg->state = FSG_STATE_DATA_PHASE;
++		spin_unlock_irq(&fsg->lock);
++
++		if (do_scsi_command(fsg) || finish_reply(fsg))
++			continue;
++
++		spin_lock_irq(&fsg->lock);
++		if (!exception_in_progress(fsg))
++			fsg->state = FSG_STATE_STATUS_PHASE;
++		spin_unlock_irq(&fsg->lock);
++
++		if (send_status(fsg))
++			continue;
++
++		spin_lock_irq(&fsg->lock);
++		if (!exception_in_progress(fsg))
++			fsg->state = FSG_STATE_IDLE;
++		spin_unlock_irq(&fsg->lock);
++		}
++
++	spin_lock_irq(&fsg->lock);
++	fsg->thread_task = NULL;
++	spin_unlock_irq(&fsg->lock);
++
++	/* If we are exiting because of a signal, unregister the
++	 * gadget driver. */
++	if (test_and_clear_bit(REGISTERED, &fsg->atomic_bitflags))
++		usb_gadget_unregister_driver(&fsg_driver);
++
++	/* Let the unbind and cleanup routines know the thread has exited */
++	complete_and_exit(&fsg->thread_notifier, 0);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++
++/* The write permissions and store_xxx pointers are set in fsg_bind() */
++static DEVICE_ATTR(ro, 0444, fsg_show_ro, NULL);
++static DEVICE_ATTR(nofua, 0644, fsg_show_nofua, NULL);
++static DEVICE_ATTR(file, 0444, fsg_show_file, NULL);
++
++
++/*-------------------------------------------------------------------------*/
++
++static void fsg_release(struct kref *ref)
++{
++	struct fsg_dev	*fsg = container_of(ref, struct fsg_dev, ref);
++
++	kfree(fsg->luns);
++	kfree(fsg);
++}
++
++static void lun_release(struct device *dev)
++{
++	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
++	struct fsg_dev		*fsg =
++		container_of(filesem, struct fsg_dev, filesem);
++
++	kref_put(&fsg->ref, fsg_release);
++}
++
++static void /* __init_or_exit */ fsg_unbind(struct usb_gadget *gadget)
++{
++	struct fsg_dev		*fsg = get_gadget_data(gadget);
++	int			i;
++	struct fsg_lun		*curlun;
++	struct usb_request	*req = fsg->ep0req;
++
++	DBG(fsg, "unbind\n");
++	clear_bit(REGISTERED, &fsg->atomic_bitflags);
++
++	/* If the thread isn't already dead, tell it to exit now */
++	if (fsg->state != FSG_STATE_TERMINATED) {
++		raise_exception(fsg, FSG_STATE_EXIT);
++		wait_for_completion(&fsg->thread_notifier);
++
++		/* The cleanup routine waits for this completion also */
++		complete(&fsg->thread_notifier);
++	}
++
++	/* Unregister the sysfs attribute files and the LUNs */
++	for (i = 0; i < fsg->nluns; ++i) {
++		curlun = &fsg->luns[i];
++		if (curlun->registered) {
++			device_remove_file(&curlun->dev, &dev_attr_nofua);
++			device_remove_file(&curlun->dev, &dev_attr_ro);
++			device_remove_file(&curlun->dev, &dev_attr_file);
++			fsg_lun_close(curlun);
++			device_unregister(&curlun->dev);
++			curlun->registered = 0;
++		}
++	}
++
++	/* Free the data buffers */
++	for (i = 0; i < fsg_num_buffers; ++i)
++		kfree(fsg->buffhds[i].buf);
++
++	/* Free the request and buffer for endpoint 0 */
++	if (req) {
++		kfree(req->buf);
++		usb_ep_free_request(fsg->ep0, req);
++	}
++
++	set_gadget_data(gadget, NULL);
++}
++
++
++static int __init check_parameters(struct fsg_dev *fsg)
++{
++	int	prot;
++	int	gcnum;
++
++	/* Store the default values */
++	mod_data.transport_type = USB_PR_BULK;
++	mod_data.transport_name = "Bulk-only";
++	mod_data.protocol_type = USB_SC_SCSI;
++	mod_data.protocol_name = "Transparent SCSI";
++
++	/* Some peripheral controllers are known not to be able to
++	 * halt bulk endpoints correctly.  If one of them is present,
++	 * disable stalls.
++	 */
++	if (gadget_is_at91(fsg->gadget))
++		mod_data.can_stall = 0;
++
++	if (mod_data.release == 0xffff) {	// Parameter wasn't set
++		gcnum = usb_gadget_controller_number(fsg->gadget);
++		if (gcnum >= 0)
++			mod_data.release = 0x0300 + gcnum;
++		else {
++			WARNING(fsg, "controller '%s' not recognized\n",
++				fsg->gadget->name);
++			mod_data.release = 0x0399;
++		}
++	}
++
++	prot = simple_strtol(mod_data.protocol_parm, NULL, 0);
++
++#ifdef CONFIG_USB_FILE_STORAGE_TEST
++	if (strnicmp(mod_data.transport_parm, "BBB", 10) == 0) {
++		;		// Use default setting
++	} else if (strnicmp(mod_data.transport_parm, "CB", 10) == 0) {
++		mod_data.transport_type = USB_PR_CB;
++		mod_data.transport_name = "Control-Bulk";
++	} else if (strnicmp(mod_data.transport_parm, "CBI", 10) == 0) {
++		mod_data.transport_type = USB_PR_CBI;
++		mod_data.transport_name = "Control-Bulk-Interrupt";
++	} else {
++		ERROR(fsg, "invalid transport: %s\n", mod_data.transport_parm);
++		return -EINVAL;
++	}
++
++	if (strnicmp(mod_data.protocol_parm, "SCSI", 10) == 0 ||
++			prot == USB_SC_SCSI) {
++		;		// Use default setting
++	} else if (strnicmp(mod_data.protocol_parm, "RBC", 10) == 0 ||
++			prot == USB_SC_RBC) {
++		mod_data.protocol_type = USB_SC_RBC;
++		mod_data.protocol_name = "RBC";
++	} else if (strnicmp(mod_data.protocol_parm, "8020", 4) == 0 ||
++			strnicmp(mod_data.protocol_parm, "ATAPI", 10) == 0 ||
++			prot == USB_SC_8020) {
++		mod_data.protocol_type = USB_SC_8020;
++		mod_data.protocol_name = "8020i (ATAPI)";
++	} else if (strnicmp(mod_data.protocol_parm, "QIC", 3) == 0 ||
++			prot == USB_SC_QIC) {
++		mod_data.protocol_type = USB_SC_QIC;
++		mod_data.protocol_name = "QIC-157";
++	} else if (strnicmp(mod_data.protocol_parm, "UFI", 10) == 0 ||
++			prot == USB_SC_UFI) {
++		mod_data.protocol_type = USB_SC_UFI;
++		mod_data.protocol_name = "UFI";
++	} else if (strnicmp(mod_data.protocol_parm, "8070", 4) == 0 ||
++			prot == USB_SC_8070) {
++		mod_data.protocol_type = USB_SC_8070;
++		mod_data.protocol_name = "8070i";
++	} else {
++		ERROR(fsg, "invalid protocol: %s\n", mod_data.protocol_parm);
++		return -EINVAL;
++	}
++
++	mod_data.buflen &= PAGE_CACHE_MASK;
++	if (mod_data.buflen <= 0) {
++		ERROR(fsg, "invalid buflen\n");
++		return -ETOOSMALL;
++	}
++
++#endif /* CONFIG_USB_FILE_STORAGE_TEST */
++
++	/* Serial string handling.
++	 * On a real device, the serial string would be loaded
++	 * from permanent storage. */
++	if (mod_data.serial) {
++		const char *ch;
++		unsigned len = 0;
++
++		/* Sanity check :
++		 * The CB[I] specification limits the serial string to
++		 * 12 uppercase hexadecimal characters.
++		 * BBB need at least 12 uppercase hexadecimal characters,
++		 * with a maximum of 126. */
++		for (ch = mod_data.serial; *ch; ++ch) {
++			++len;
++			if ((*ch < '0' || *ch > '9') &&
++			    (*ch < 'A' || *ch > 'F')) { /* not uppercase hex */
++				WARNING(fsg,
++					"Invalid serial string character: %c\n",
++					*ch);
++				goto no_serial;
++			}
++		}
++		if (len > 126 ||
++		    (mod_data.transport_type == USB_PR_BULK && len < 12) ||
++		    (mod_data.transport_type != USB_PR_BULK && len > 12)) {
++			WARNING(fsg, "Invalid serial string length!\n");
++			goto no_serial;
++		}
++		fsg_strings[FSG_STRING_SERIAL - 1].s = mod_data.serial;
++	} else {
++		WARNING(fsg, "No serial-number string provided!\n");
++ no_serial:
++		device_desc.iSerialNumber = 0;
++	}
++
++	return 0;
++}
++
++
++static int __init fsg_bind(struct usb_gadget *gadget)
++{
++	struct fsg_dev		*fsg = the_fsg;
++	int			rc;
++	int			i;
++	struct fsg_lun		*curlun;
++	struct usb_ep		*ep;
++	struct usb_request	*req;
++	char			*pathbuf, *p;
++
++	fsg->gadget = gadget;
++	set_gadget_data(gadget, fsg);
++	fsg->ep0 = gadget->ep0;
++	fsg->ep0->driver_data = fsg;
++
++	if ((rc = check_parameters(fsg)) != 0)
++		goto out;
++
++	if (mod_data.removable) {	// Enable the store_xxx attributes
++		dev_attr_file.attr.mode = 0644;
++		dev_attr_file.store = fsg_store_file;
++		if (!mod_data.cdrom) {
++			dev_attr_ro.attr.mode = 0644;
++			dev_attr_ro.store = fsg_store_ro;
++		}
++	}
++
++	/* Only for removable media? */
++	dev_attr_nofua.attr.mode = 0644;
++	dev_attr_nofua.store = fsg_store_nofua;
++
++	/* Find out how many LUNs there should be */
++	i = mod_data.nluns;
++	if (i == 0)
++		i = max(mod_data.num_filenames, 1u);
++	if (i > FSG_MAX_LUNS) {
++		ERROR(fsg, "invalid number of LUNs: %d\n", i);
++		rc = -EINVAL;
++		goto out;
++	}
++
++	/* Create the LUNs, open their backing files, and register the
++	 * LUN devices in sysfs. */
++	fsg->luns = kzalloc(i * sizeof(struct fsg_lun), GFP_KERNEL);
++	if (!fsg->luns) {
++		rc = -ENOMEM;
++		goto out;
++	}
++	fsg->nluns = i;
++
++	for (i = 0; i < fsg->nluns; ++i) {
++		curlun = &fsg->luns[i];
++		curlun->cdrom = !!mod_data.cdrom;
++		curlun->ro = mod_data.cdrom || mod_data.ro[i];
++		curlun->initially_ro = curlun->ro;
++		curlun->removable = mod_data.removable;
++		curlun->nofua = mod_data.nofua[i];
++		curlun->dev.release = lun_release;
++		curlun->dev.parent = &gadget->dev;
++		curlun->dev.driver = &fsg_driver.driver;
++		dev_set_drvdata(&curlun->dev, &fsg->filesem);
++		dev_set_name(&curlun->dev,"%s-lun%d",
++			     dev_name(&gadget->dev), i);
++
++		kref_get(&fsg->ref);
++		rc = device_register(&curlun->dev);
++		if (rc) {
++			INFO(fsg, "failed to register LUN%d: %d\n", i, rc);
++			put_device(&curlun->dev);
++			goto out;
++		}
++		curlun->registered = 1;
++
++		rc = device_create_file(&curlun->dev, &dev_attr_ro);
++		if (rc)
++			goto out;
++		rc = device_create_file(&curlun->dev, &dev_attr_nofua);
++		if (rc)
++			goto out;
++		rc = device_create_file(&curlun->dev, &dev_attr_file);
++		if (rc)
++			goto out;
++
++		if (mod_data.file[i] && *mod_data.file[i]) {
++			rc = fsg_lun_open(curlun, mod_data.file[i]);
++			if (rc)
++				goto out;
++		} else if (!mod_data.removable) {
++			ERROR(fsg, "no file given for LUN%d\n", i);
++			rc = -EINVAL;
++			goto out;
++		}
++	}
++
++	/* Find all the endpoints we will use */
++	usb_ep_autoconfig_reset(gadget);
++	ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_in_desc);
++	if (!ep)
++		goto autoconf_fail;
++	ep->driver_data = fsg;		// claim the endpoint
++	fsg->bulk_in = ep;
++
++	ep = usb_ep_autoconfig(gadget, &fsg_fs_bulk_out_desc);
++	if (!ep)
++		goto autoconf_fail;
++	ep->driver_data = fsg;		// claim the endpoint
++	fsg->bulk_out = ep;
++
++	if (transport_is_cbi()) {
++		ep = usb_ep_autoconfig(gadget, &fsg_fs_intr_in_desc);
++		if (!ep)
++			goto autoconf_fail;
++		ep->driver_data = fsg;		// claim the endpoint
++		fsg->intr_in = ep;
++	}
++
++	/* Fix up the descriptors */
++	device_desc.idVendor = cpu_to_le16(mod_data.vendor);
++	device_desc.idProduct = cpu_to_le16(mod_data.product);
++	device_desc.bcdDevice = cpu_to_le16(mod_data.release);
++
++	i = (transport_is_cbi() ? 3 : 2);	// Number of endpoints
++	fsg_intf_desc.bNumEndpoints = i;
++	fsg_intf_desc.bInterfaceSubClass = mod_data.protocol_type;
++	fsg_intf_desc.bInterfaceProtocol = mod_data.transport_type;
++	fsg_fs_function[i + FSG_FS_FUNCTION_PRE_EP_ENTRIES] = NULL;
++
++	if (gadget_is_dualspeed(gadget)) {
++		fsg_hs_function[i + FSG_HS_FUNCTION_PRE_EP_ENTRIES] = NULL;
++
++		/* Assume endpoint addresses are the same for both speeds */
++		fsg_hs_bulk_in_desc.bEndpointAddress =
++			fsg_fs_bulk_in_desc.bEndpointAddress;
++		fsg_hs_bulk_out_desc.bEndpointAddress =
++			fsg_fs_bulk_out_desc.bEndpointAddress;
++		fsg_hs_intr_in_desc.bEndpointAddress =
++			fsg_fs_intr_in_desc.bEndpointAddress;
++	}
++
++	if (gadget_is_superspeed(gadget)) {
++		unsigned		max_burst;
++
++		fsg_ss_function[i + FSG_SS_FUNCTION_PRE_EP_ENTRIES] = NULL;
++
++		/* Calculate bMaxBurst, we know packet size is 1024 */
++		max_burst = min_t(unsigned, mod_data.buflen / 1024, 15);
++
++		/* Assume endpoint addresses are the same for both speeds */
++		fsg_ss_bulk_in_desc.bEndpointAddress =
++			fsg_fs_bulk_in_desc.bEndpointAddress;
++		fsg_ss_bulk_in_comp_desc.bMaxBurst = max_burst;
++
++		fsg_ss_bulk_out_desc.bEndpointAddress =
++			fsg_fs_bulk_out_desc.bEndpointAddress;
++		fsg_ss_bulk_out_comp_desc.bMaxBurst = max_burst;
++	}
++
++	if (gadget_is_otg(gadget))
++		fsg_otg_desc.bmAttributes |= USB_OTG_HNP;
++
++	rc = -ENOMEM;
++
++	/* Allocate the request and buffer for endpoint 0 */
++	fsg->ep0req = req = usb_ep_alloc_request(fsg->ep0, GFP_KERNEL);
++	if (!req)
++		goto out;
++	req->buf = kmalloc(EP0_BUFSIZE, GFP_KERNEL);
++	if (!req->buf)
++		goto out;
++	req->complete = ep0_complete;
++
++	/* Allocate the data buffers */
++	for (i = 0; i < fsg_num_buffers; ++i) {
++		struct fsg_buffhd	*bh = &fsg->buffhds[i];
++
++		/* Allocate for the bulk-in endpoint.  We assume that
++		 * the buffer will also work with the bulk-out (and
++		 * interrupt-in) endpoint. */
++		bh->buf = kmalloc(mod_data.buflen, GFP_KERNEL);
++		if (!bh->buf)
++			goto out;
++		bh->next = bh + 1;
++	}
++	fsg->buffhds[fsg_num_buffers - 1].next = &fsg->buffhds[0];
++
++	/* This should reflect the actual gadget power source */
++	usb_gadget_set_selfpowered(gadget);
++
++	snprintf(fsg_string_manufacturer, sizeof fsg_string_manufacturer,
++			"%s %s with %s",
++			init_utsname()->sysname, init_utsname()->release,
++			gadget->name);
++
++	fsg->thread_task = kthread_create(fsg_main_thread, fsg,
++			"file-storage-gadget");
++	if (IS_ERR(fsg->thread_task)) {
++		rc = PTR_ERR(fsg->thread_task);
++		goto out;
++	}
++
++	INFO(fsg, DRIVER_DESC ", version: " DRIVER_VERSION "\n");
++	INFO(fsg, "NOTE: This driver is deprecated.  "
++			"Consider using g_mass_storage instead.\n");
++	INFO(fsg, "Number of LUNs=%d\n", fsg->nluns);
++
++	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
++	for (i = 0; i < fsg->nluns; ++i) {
++		curlun = &fsg->luns[i];
++		if (fsg_lun_is_open(curlun)) {
++			p = NULL;
++			if (pathbuf) {
++				p = d_path(&curlun->filp->f_path,
++					   pathbuf, PATH_MAX);
++				if (IS_ERR(p))
++					p = NULL;
++			}
++			LINFO(curlun, "ro=%d, nofua=%d, file: %s\n",
++			      curlun->ro, curlun->nofua, (p ? p : "(error)"));
++		}
++	}
++	kfree(pathbuf);
++
++	DBG(fsg, "transport=%s (x%02x)\n",
++			mod_data.transport_name, mod_data.transport_type);
++	DBG(fsg, "protocol=%s (x%02x)\n",
++			mod_data.protocol_name, mod_data.protocol_type);
++	DBG(fsg, "VendorID=x%04x, ProductID=x%04x, Release=x%04x\n",
++			mod_data.vendor, mod_data.product, mod_data.release);
++	DBG(fsg, "removable=%d, stall=%d, cdrom=%d, buflen=%u\n",
++			mod_data.removable, mod_data.can_stall,
++			mod_data.cdrom, mod_data.buflen);
++	DBG(fsg, "I/O thread pid: %d\n", task_pid_nr(fsg->thread_task));
++
++	set_bit(REGISTERED, &fsg->atomic_bitflags);
++
++	/* Tell the thread to start working */
++	wake_up_process(fsg->thread_task);
++	return 0;
++
++autoconf_fail:
++	ERROR(fsg, "unable to autoconfigure all endpoints\n");
++	rc = -ENOTSUPP;
++
++out:
++	fsg->state = FSG_STATE_TERMINATED;	// The thread is dead
++	fsg_unbind(gadget);
++	complete(&fsg->thread_notifier);
++	return rc;
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static void fsg_suspend(struct usb_gadget *gadget)
++{
++	struct fsg_dev		*fsg = get_gadget_data(gadget);
++
++	DBG(fsg, "suspend\n");
++	set_bit(SUSPENDED, &fsg->atomic_bitflags);
++}
++
++static void fsg_resume(struct usb_gadget *gadget)
++{
++	struct fsg_dev		*fsg = get_gadget_data(gadget);
++
++	DBG(fsg, "resume\n");
++	clear_bit(SUSPENDED, &fsg->atomic_bitflags);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static struct usb_gadget_driver		fsg_driver = {
++	.max_speed	= USB_SPEED_SUPER,
++	.function	= (char *) fsg_string_product,
++	.unbind		= fsg_unbind,
++	.disconnect	= fsg_disconnect,
++	.setup		= fsg_setup,
++	.suspend	= fsg_suspend,
++	.resume		= fsg_resume,
++
++	.driver		= {
++		.name		= DRIVER_NAME,
++		.owner		= THIS_MODULE,
++		// .release = ...
++		// .suspend = ...
++		// .resume = ...
++	},
++};
++
++
++static int __init fsg_alloc(void)
++{
++	struct fsg_dev		*fsg;
++
++	fsg = kzalloc(sizeof *fsg +
++		      fsg_num_buffers * sizeof *(fsg->buffhds), GFP_KERNEL);
++
++	if (!fsg)
++		return -ENOMEM;
++	spin_lock_init(&fsg->lock);
++	init_rwsem(&fsg->filesem);
++	kref_init(&fsg->ref);
++	init_completion(&fsg->thread_notifier);
++
++	the_fsg = fsg;
++	return 0;
++}
++
++
++static int __init fsg_init(void)
++{
++	int		rc;
++	struct fsg_dev	*fsg;
++
++	rc = fsg_num_buffers_validate();
++	if (rc != 0)
++		return rc;
++
++	if ((rc = fsg_alloc()) != 0)
++		return rc;
++	fsg = the_fsg;
++	if ((rc = usb_gadget_probe_driver(&fsg_driver, fsg_bind)) != 0)
++		kref_put(&fsg->ref, fsg_release);
++	return rc;
++}
++module_init(fsg_init);
++
++
++static void __exit fsg_cleanup(void)
++{
++	struct fsg_dev	*fsg = the_fsg;
++
++	/* Unregister the driver iff the thread hasn't already done so */
++	if (test_and_clear_bit(REGISTERED, &fsg->atomic_bitflags))
++		usb_gadget_unregister_driver(&fsg_driver);
++
++	/* Wait for the thread to finish up */
++	wait_for_completion(&fsg->thread_notifier);
++
++	kref_put(&fsg->ref, fsg_release);
++}
++module_exit(fsg_cleanup);
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -741,6 +741,16 @@ config USB_RENESAS_USBHS_HCD
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called renesas-usbhs.
+ 
++config USB_DWCOTG
++	bool "Synopsis DWC host support"
++	depends on USB && (FIQ || ARM64)
++	help
++	  The Synopsis DWC controller is a dual-role
++	  host/peripheral/OTG ("On The Go") USB controllers.
++
++	  Enable this option to support this IP in host controller mode.
++	  If unsure, say N.
++
+ config USB_IMX21_HCD
+ 	tristate "i.MX21 HCD support"
+ 	depends on ARM && ARCH_MXC
+--- a/drivers/usb/host/Makefile
++++ b/drivers/usb/host/Makefile
+@@ -81,6 +81,7 @@ obj-$(CONFIG_USB_SL811_HCD)	+= sl811-hcd
+ obj-$(CONFIG_USB_SL811_CS)	+= sl811_cs.o
+ obj-$(CONFIG_USB_U132_HCD)	+= u132-hcd.o
+ obj-$(CONFIG_USB_R8A66597_HCD)	+= r8a66597-hcd.o
++obj-$(CONFIG_USB_DWCOTG)        += dwc_otg/ dwc_common_port/
+ obj-$(CONFIG_USB_IMX21_HCD)	+= imx21-hcd.o
+ obj-$(CONFIG_USB_FSL_USB2)	+= fsl-mph-dr-of.o
+ obj-$(CONFIG_USB_EHCI_FSL)	+= fsl-mph-dr-of.o
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/Makefile
+@@ -0,0 +1,58 @@
++#
++# Makefile for DWC_common library
++#
++
++ifneq ($(KERNELRELEASE),)
++
++ccflags-y	+= -DDWC_LINUX
++#ccflags-y	+= -DDEBUG
++#ccflags-y	+= -DDWC_DEBUG_REGS
++#ccflags-y	+= -DDWC_DEBUG_MEMORY
++
++ccflags-y	+= -DDWC_LIBMODULE
++ccflags-y	+= -DDWC_CCLIB
++#ccflags-y	+= -DDWC_CRYPTOLIB
++ccflags-y	+= -DDWC_NOTIFYLIB
++ccflags-y	+= -DDWC_UTFLIB
++
++obj-$(CONFIG_USB_DWCOTG)	+= dwc_common_port_lib.o
++dwc_common_port_lib-objs := dwc_cc.o dwc_modpow.o dwc_dh.o \
++			    dwc_crypto.o dwc_notifier.o \
++			    dwc_common_linux.o dwc_mem.o
++
++kernrelwd := $(subst ., ,$(KERNELRELEASE))
++kernrel3 := $(word 1,$(kernrelwd)).$(word 2,$(kernrelwd)).$(word 3,$(kernrelwd))
++
++ifneq ($(kernrel3),2.6.20)
++# grayg - I only know that we use ccflags-y in 2.6.31 actually
++ccflags-y += $(CPPFLAGS)
++endif
++
++else
++
++#ifeq ($(KDIR),)
++#$(error Must give "KDIR=/path/to/kernel/source" on command line or in environment)
++#endif
++
++ifeq ($(ARCH),)
++$(error Must give "ARCH=<arch>" on command line or in environment. Also, if \
++ cross-compiling, must give "CROSS_COMPILE=/path/to/compiler/plus/tool-prefix-")
++endif
++
++ifeq ($(DOXYGEN),)
++DOXYGEN		:= doxygen
++endif
++
++default:
++	$(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules
++
++docs:	$(wildcard *.[hc]) doc/doxygen.cfg
++	$(DOXYGEN) doc/doxygen.cfg
++
++tags:	$(wildcard *.[hc])
++	$(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h)
++
++endif
++
++clean:
++	rm -rf *.o *.ko .*.cmd *.mod.c .*.o.d .*.o.tmp modules.order Module.markers Module.symvers .tmp_versions/
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/Makefile.fbsd
+@@ -0,0 +1,17 @@
++CFLAGS	+= -I/sys/i386/compile/GENERIC -I/sys/i386/include -I/usr/include
++CFLAGS	+= -DDWC_FREEBSD
++CFLAGS	+= -DDEBUG
++#CFLAGS	+= -DDWC_DEBUG_REGS
++#CFLAGS	+= -DDWC_DEBUG_MEMORY
++
++#CFLAGS	+= -DDWC_LIBMODULE
++#CFLAGS	+= -DDWC_CCLIB
++#CFLAGS	+= -DDWC_CRYPTOLIB
++#CFLAGS	+= -DDWC_NOTIFYLIB
++#CFLAGS	+= -DDWC_UTFLIB
++
++KMOD = dwc_common_port_lib
++SRCS = dwc_cc.c dwc_modpow.c dwc_dh.c dwc_crypto.c dwc_notifier.c \
++       dwc_common_fbsd.c dwc_mem.c
++
++.include <bsd.kmod.mk>
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/Makefile.linux
+@@ -0,0 +1,49 @@
++#
++# Makefile for DWC_common library
++#
++ifneq ($(KERNELRELEASE),)
++
++ccflags-y	+= -DDWC_LINUX
++#ccflags-y	+= -DDEBUG
++#ccflags-y	+= -DDWC_DEBUG_REGS
++#ccflags-y	+= -DDWC_DEBUG_MEMORY
++
++ccflags-y	+= -DDWC_LIBMODULE
++ccflags-y	+= -DDWC_CCLIB
++ccflags-y	+= -DDWC_CRYPTOLIB
++ccflags-y	+= -DDWC_NOTIFYLIB
++ccflags-y	+= -DDWC_UTFLIB
++
++obj-m			 := dwc_common_port_lib.o
++dwc_common_port_lib-objs := dwc_cc.o dwc_modpow.o dwc_dh.o \
++			    dwc_crypto.o dwc_notifier.o \
++			    dwc_common_linux.o dwc_mem.o
++
++else
++
++ifeq ($(KDIR),)
++$(error Must give "KDIR=/path/to/kernel/source" on command line or in environment)
++endif
++
++ifeq ($(ARCH),)
++$(error Must give "ARCH=<arch>" on command line or in environment. Also, if \
++ cross-compiling, must give "CROSS_COMPILE=/path/to/compiler/plus/tool-prefix-")
++endif
++
++ifeq ($(DOXYGEN),)
++DOXYGEN		:= doxygen
++endif
++
++default:
++	$(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules
++
++docs:	$(wildcard *.[hc]) doc/doxygen.cfg
++	$(DOXYGEN) doc/doxygen.cfg
++
++tags:	$(wildcard *.[hc])
++	$(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h)
++
++endif
++
++clean:
++	rm -rf *.o *.ko .*.cmd *.mod.c .*.o.d .*.o.tmp modules.order Module.markers Module.symvers .tmp_versions/
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/changes.txt
+@@ -0,0 +1,174 @@
++
++dwc_read_reg32() and friends now take an additional parameter, a pointer to an
++IO context struct. The IO context struct should live in an os-dependent struct
++in your driver. As an example, the dwc_usb3 driver has an os-dependent struct
++named 'os_dep' embedded in the main device struct. So there these calls look
++like this:
++
++	dwc_read_reg32(&usb3_dev->os_dep.ioctx, &pcd->dev_global_regs->dcfg);
++
++	dwc_write_reg32(&usb3_dev->os_dep.ioctx,
++			&pcd->dev_global_regs->dcfg, 0);
++
++Note that for the existing Linux driver ports, it is not necessary to actually
++define the 'ioctx' member in the os-dependent struct. Since Linux does not
++require an IO context, its macros for dwc_read_reg32() and friends do not
++use the context pointer, so it is optimized away by the compiler. But it is
++necessary to add the pointer parameter to all of the call sites, to be ready
++for any future ports (such as FreeBSD) which do require an IO context.
++
++
++Similarly, dwc_alloc(), dwc_alloc_atomic(), dwc_strdup(), and dwc_free() now
++take an additional parameter, a pointer to a memory context. Examples:
++
++	addr = dwc_alloc(&usb3_dev->os_dep.memctx, size);
++
++	dwc_free(&usb3_dev->os_dep.memctx, addr);
++
++Again, for the Linux ports, it is not necessary to actually define the memctx
++member, but it is necessary to add the pointer parameter to all of the call
++sites.
++
++
++Same for dwc_dma_alloc() and dwc_dma_free(). Examples:
++
++	virt_addr = dwc_dma_alloc(&usb3_dev->os_dep.dmactx, size, &phys_addr);
++
++	dwc_dma_free(&usb3_dev->os_dep.dmactx, size, virt_addr, phys_addr);
++
++
++Same for dwc_mutex_alloc() and dwc_mutex_free(). Examples:
++
++	mutex = dwc_mutex_alloc(&usb3_dev->os_dep.mtxctx);
++
++	dwc_mutex_free(&usb3_dev->os_dep.mtxctx, mutex);
++
++
++Same for dwc_spinlock_alloc() and dwc_spinlock_free(). Examples:
++
++	lock = dwc_spinlock_alloc(&usb3_dev->osdep.splctx);
++
++	dwc_spinlock_free(&usb3_dev->osdep.splctx, lock);
++
++
++Same for dwc_timer_alloc(). Example:
++
++	timer = dwc_timer_alloc(&usb3_dev->os_dep.tmrctx, "dwc_usb3_tmr1",
++				cb_func, cb_data);
++
++
++Same for dwc_waitq_alloc(). Example:
++
++	waitq = dwc_waitq_alloc(&usb3_dev->os_dep.wtqctx);
++
++
++Same for dwc_thread_run(). Example:
++
++	thread = dwc_thread_run(&usb3_dev->os_dep.thdctx, func,
++				"dwc_usb3_thd1", data);
++
++
++Same for dwc_workq_alloc(). Example:
++
++	workq = dwc_workq_alloc(&usb3_dev->osdep.wkqctx, "dwc_usb3_wkq1");
++
++
++Same for dwc_task_alloc(). Example:
++
++	task = dwc_task_alloc(&usb3_dev->os_dep.tskctx, "dwc_usb3_tsk1",
++			      cb_func, cb_data);
++
++
++In addition to the context pointer additions, a few core functions have had
++other changes made to their parameters:
++
++The 'flags' parameter to dwc_spinlock_irqsave() and dwc_spinunlock_irqrestore()
++has been changed from a uint64_t to a dwc_irqflags_t.
++
++dwc_thread_should_stop() now takes a 'dwc_thread_t *' parameter, because the
++FreeBSD equivalent of that function requires it.
++
++And, in addition to the context pointer, dwc_task_alloc() also adds a
++'char *name' parameter, to be consistent with dwc_thread_run() and
++dwc_workq_alloc(), and because the FreeBSD equivalent of that function
++requires a unique name.
++
++
++Here is a complete list of the core functions that now take a pointer to a
++context as their first parameter:
++
++	dwc_read_reg32
++	dwc_read_reg64
++	dwc_write_reg32
++	dwc_write_reg64
++	dwc_modify_reg32
++	dwc_modify_reg64
++	dwc_alloc
++	dwc_alloc_atomic
++	dwc_strdup
++	dwc_free
++	dwc_dma_alloc
++	dwc_dma_free
++	dwc_mutex_alloc
++	dwc_mutex_free
++	dwc_spinlock_alloc
++	dwc_spinlock_free
++	dwc_timer_alloc
++	dwc_waitq_alloc
++	dwc_thread_run
++	dwc_workq_alloc
++	dwc_task_alloc     Also adds a 'char *name' as its 2nd parameter
++
++And here are the core functions that have other changes to their parameters:
++
++	dwc_spinlock_irqsave      'flags' param is now a 'dwc_irqflags_t *'
++	dwc_spinunlock_irqrestore 'flags' param is now a 'dwc_irqflags_t'
++	dwc_thread_should_stop    Adds a 'dwc_thread_t *' parameter
++
++
++
++The changes to the core functions also require some of the other library
++functions to change:
++
++	dwc_cc_if_alloc() and dwc_cc_if_free() now take a 'void *memctx'
++	(for memory allocation) as the 1st param and a 'void *mtxctx'
++	(for mutex allocation) as the 2nd param.
++
++	dwc_cc_clear(), dwc_cc_add(), dwc_cc_change(), dwc_cc_remove(),
++	dwc_cc_data_for_save(), and dwc_cc_restore_from_data() now take a
++	'void *memctx' as the 1st param.
++
++	dwc_dh_modpow(), dwc_dh_pk(), and dwc_dh_derive_keys() now take a
++	'void *memctx' as the 1st param.
++
++	dwc_modpow() now takes a 'void *memctx' as the 1st param.
++
++	dwc_alloc_notification_manager() now takes a 'void *memctx' as the
++	1st param and a 'void *wkqctx' (for work queue allocation) as the 2nd
++	param, and also now returns an integer value that is non-zero if
++	allocation of its data structures or work queue fails.
++
++	dwc_register_notifier() now takes a 'void *memctx' as the 1st param.
++
++	dwc_memory_debug_start() now takes a 'void *mem_ctx' as the first
++	param, and also now returns an integer value that is non-zero if
++	allocation of its data structures fails.
++
++
++
++Other miscellaneous changes:
++
++The DEBUG_MEMORY and DEBUG_REGS #define's have been renamed to
++DWC_DEBUG_MEMORY and DWC_DEBUG_REGS.
++
++The following #define's have been added to allow selectively compiling library
++features:
++
++	DWC_CCLIB
++	DWC_CRYPTOLIB
++	DWC_NOTIFYLIB
++	DWC_UTFLIB
++
++A DWC_LIBMODULE #define has also been added. If this is not defined, then the
++module code in dwc_common_linux.c is not compiled in. This allows linking the
++library code directly into a driver module, instead of as a standalone module.
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/doc/doxygen.cfg
+@@ -0,0 +1,270 @@
++# Doxyfile 1.4.5
++
++#---------------------------------------------------------------------------
++# Project related configuration options
++#---------------------------------------------------------------------------
++PROJECT_NAME           = "Synopsys DWC Portability and Common Library for UWB"
++PROJECT_NUMBER         =
++OUTPUT_DIRECTORY       = doc
++CREATE_SUBDIRS         = NO
++OUTPUT_LANGUAGE        = English
++BRIEF_MEMBER_DESC      = YES
++REPEAT_BRIEF           = YES
++ABBREVIATE_BRIEF       = "The $name class" \
++                         "The $name widget" \
++                         "The $name file" \
++                         is \
++                         provides \
++                         specifies \
++                         contains \
++                         represents \
++                         a \
++                         an \
++                         the
++ALWAYS_DETAILED_SEC    = YES
++INLINE_INHERITED_MEMB  = NO
++FULL_PATH_NAMES        = NO
++STRIP_FROM_PATH        = ..
++STRIP_FROM_INC_PATH    =
++SHORT_NAMES            = NO
++JAVADOC_AUTOBRIEF      = YES
++MULTILINE_CPP_IS_BRIEF = NO
++DETAILS_AT_TOP         = YES
++INHERIT_DOCS           = YES
++SEPARATE_MEMBER_PAGES  = NO
++TAB_SIZE               = 8
++ALIASES                =
++OPTIMIZE_OUTPUT_FOR_C  = YES
++OPTIMIZE_OUTPUT_JAVA   = NO
++BUILTIN_STL_SUPPORT    = NO
++DISTRIBUTE_GROUP_DOC   = NO
++SUBGROUPING            = NO
++#---------------------------------------------------------------------------
++# Build related configuration options
++#---------------------------------------------------------------------------
++EXTRACT_ALL            = NO
++EXTRACT_PRIVATE        = NO
++EXTRACT_STATIC         = YES
++EXTRACT_LOCAL_CLASSES  = NO
++EXTRACT_LOCAL_METHODS  = NO
++HIDE_UNDOC_MEMBERS     = NO
++HIDE_UNDOC_CLASSES     = NO
++HIDE_FRIEND_COMPOUNDS  = NO
++HIDE_IN_BODY_DOCS      = NO
++INTERNAL_DOCS          = NO
++CASE_SENSE_NAMES       = YES
++HIDE_SCOPE_NAMES       = NO
++SHOW_INCLUDE_FILES     = NO
++INLINE_INFO            = YES
++SORT_MEMBER_DOCS       = NO
++SORT_BRIEF_DOCS        = NO
++SORT_BY_SCOPE_NAME     = NO
++GENERATE_TODOLIST      = YES
++GENERATE_TESTLIST      = YES
++GENERATE_BUGLIST       = YES
++GENERATE_DEPRECATEDLIST= YES
++ENABLED_SECTIONS       =
++MAX_INITIALIZER_LINES  = 30
++SHOW_USED_FILES        = YES
++SHOW_DIRECTORIES       = YES
++FILE_VERSION_FILTER    =
++#---------------------------------------------------------------------------
++# configuration options related to warning and progress messages
++#---------------------------------------------------------------------------
++QUIET                  = YES
++WARNINGS               = YES
++WARN_IF_UNDOCUMENTED   = NO
++WARN_IF_DOC_ERROR      = YES
++WARN_NO_PARAMDOC       = YES
++WARN_FORMAT            = "$file:$line: $text"
++WARN_LOGFILE           =
++#---------------------------------------------------------------------------
++# configuration options related to the input files
++#---------------------------------------------------------------------------
++INPUT                  = .
++FILE_PATTERNS          = *.c \
++                         *.cc \
++                         *.cxx \
++                         *.cpp \
++                         *.c++ \
++                         *.d \
++                         *.java \
++                         *.ii \
++                         *.ixx \
++                         *.ipp \
++                         *.i++ \
++                         *.inl \
++                         *.h \
++                         *.hh \
++                         *.hxx \
++                         *.hpp \
++                         *.h++ \
++                         *.idl \
++                         *.odl \
++                         *.cs \
++                         *.php \
++                         *.php3 \
++                         *.inc \
++                         *.m \
++                         *.mm \
++                         *.dox \
++                         *.py \
++                         *.C \
++                         *.CC \
++                         *.C++ \
++                         *.II \
++                         *.I++ \
++                         *.H \
++                         *.HH \
++                         *.H++ \
++                         *.CS \
++                         *.PHP \
++                         *.PHP3 \
++                         *.M \
++                         *.MM \
++                         *.PY
++RECURSIVE              = NO
++EXCLUDE                =
++EXCLUDE_SYMLINKS       = NO
++EXCLUDE_PATTERNS       =
++EXAMPLE_PATH           =
++EXAMPLE_PATTERNS       = *
++EXAMPLE_RECURSIVE      = NO
++IMAGE_PATH             =
++INPUT_FILTER           =
++FILTER_PATTERNS        =
++FILTER_SOURCE_FILES    = NO
++#---------------------------------------------------------------------------
++# configuration options related to source browsing
++#---------------------------------------------------------------------------
++SOURCE_BROWSER         = NO
++INLINE_SOURCES         = NO
++STRIP_CODE_COMMENTS    = YES
++REFERENCED_BY_RELATION = YES
++REFERENCES_RELATION    = YES
++USE_HTAGS              = NO
++VERBATIM_HEADERS       = NO
++#---------------------------------------------------------------------------
++# configuration options related to the alphabetical class index
++#---------------------------------------------------------------------------
++ALPHABETICAL_INDEX     = NO
++COLS_IN_ALPHA_INDEX    = 5
++IGNORE_PREFIX          =
++#---------------------------------------------------------------------------
++# configuration options related to the HTML output
++#---------------------------------------------------------------------------
++GENERATE_HTML          = YES
++HTML_OUTPUT            = html
++HTML_FILE_EXTENSION    = .html
++HTML_HEADER            =
++HTML_FOOTER            =
++HTML_STYLESHEET        =
++HTML_ALIGN_MEMBERS     = YES
++GENERATE_HTMLHELP      = NO
++CHM_FILE               =
++HHC_LOCATION           =
++GENERATE_CHI           = NO
++BINARY_TOC             = NO
++TOC_EXPAND             = NO
++DISABLE_INDEX          = NO
++ENUM_VALUES_PER_LINE   = 4
++GENERATE_TREEVIEW      = YES
++TREEVIEW_WIDTH         = 250
++#---------------------------------------------------------------------------
++# configuration options related to the LaTeX output
++#---------------------------------------------------------------------------
++GENERATE_LATEX         = NO
++LATEX_OUTPUT           = latex
++LATEX_CMD_NAME         = latex
++MAKEINDEX_CMD_NAME     = makeindex
++COMPACT_LATEX          = NO
++PAPER_TYPE             = a4wide
++EXTRA_PACKAGES         =
++LATEX_HEADER           =
++PDF_HYPERLINKS         = NO
++USE_PDFLATEX           = NO
++LATEX_BATCHMODE        = NO
++LATEX_HIDE_INDICES     = NO
++#---------------------------------------------------------------------------
++# configuration options related to the RTF output
++#---------------------------------------------------------------------------
++GENERATE_RTF           = NO
++RTF_OUTPUT             = rtf
++COMPACT_RTF            = NO
++RTF_HYPERLINKS         = NO
++RTF_STYLESHEET_FILE    =
++RTF_EXTENSIONS_FILE    =
++#---------------------------------------------------------------------------
++# configuration options related to the man page output
++#---------------------------------------------------------------------------
++GENERATE_MAN           = NO
++MAN_OUTPUT             = man
++MAN_EXTENSION          = .3
++MAN_LINKS              = NO
++#---------------------------------------------------------------------------
++# configuration options related to the XML output
++#---------------------------------------------------------------------------
++GENERATE_XML           = NO
++XML_OUTPUT             = xml
++XML_SCHEMA             =
++XML_DTD                =
++XML_PROGRAMLISTING     = YES
++#---------------------------------------------------------------------------
++# configuration options for the AutoGen Definitions output
++#---------------------------------------------------------------------------
++GENERATE_AUTOGEN_DEF   = NO
++#---------------------------------------------------------------------------
++# configuration options related to the Perl module output
++#---------------------------------------------------------------------------
++GENERATE_PERLMOD       = NO
++PERLMOD_LATEX          = NO
++PERLMOD_PRETTY         = YES
++PERLMOD_MAKEVAR_PREFIX =
++#---------------------------------------------------------------------------
++# Configuration options related to the preprocessor
++#---------------------------------------------------------------------------
++ENABLE_PREPROCESSING   = YES
++MACRO_EXPANSION        = NO
++EXPAND_ONLY_PREDEF     = NO
++SEARCH_INCLUDES        = YES
++INCLUDE_PATH           =
++INCLUDE_FILE_PATTERNS  =
++PREDEFINED             = DEBUG DEBUG_MEMORY
++EXPAND_AS_DEFINED      =
++SKIP_FUNCTION_MACROS   = YES
++#---------------------------------------------------------------------------
++# Configuration::additions related to external references
++#---------------------------------------------------------------------------
++TAGFILES               =
++GENERATE_TAGFILE       =
++ALLEXTERNALS           = NO
++EXTERNAL_GROUPS        = YES
++PERL_PATH              = /usr/bin/perl
++#---------------------------------------------------------------------------
++# Configuration options related to the dot tool
++#---------------------------------------------------------------------------
++CLASS_DIAGRAMS         = YES
++HIDE_UNDOC_RELATIONS   = YES
++HAVE_DOT               = NO
++CLASS_GRAPH            = YES
++COLLABORATION_GRAPH    = YES
++GROUP_GRAPHS           = YES
++UML_LOOK               = NO
++TEMPLATE_RELATIONS     = NO
++INCLUDE_GRAPH          = NO
++INCLUDED_BY_GRAPH      = YES
++CALL_GRAPH             = NO
++GRAPHICAL_HIERARCHY    = YES
++DIRECTORY_GRAPH        = YES
++DOT_IMAGE_FORMAT       = png
++DOT_PATH               =
++DOTFILE_DIRS           =
++MAX_DOT_GRAPH_DEPTH    = 1000
++DOT_TRANSPARENT        = NO
++DOT_MULTI_TARGETS      = NO
++GENERATE_LEGEND        = YES
++DOT_CLEANUP            = YES
++#---------------------------------------------------------------------------
++# Configuration::additions related to the search engine
++#---------------------------------------------------------------------------
++SEARCHENGINE           = NO
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_cc.c
+@@ -0,0 +1,532 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_cc.c $
++ * $Revision: #4 $
++ * $Date: 2010/11/04 $
++ * $Change: 1621692 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++#ifdef DWC_CCLIB
++
++#include "dwc_cc.h"
++
++typedef struct dwc_cc
++{
++	uint32_t uid;
++	uint8_t chid[16];
++	uint8_t cdid[16];
++	uint8_t ck[16];
++	uint8_t *name;
++	uint8_t length;
++        DWC_CIRCLEQ_ENTRY(dwc_cc) list_entry;
++} dwc_cc_t;
++
++DWC_CIRCLEQ_HEAD(context_list, dwc_cc);
++
++/** The main structure for CC management.  */
++struct dwc_cc_if
++{
++	dwc_mutex_t *mutex;
++	char *filename;
++
++	unsigned is_host:1;
++
++	dwc_notifier_t *notifier;
++
++	struct context_list list;
++};
++
++#ifdef DEBUG
++static inline void dump_bytes(char *name, uint8_t *bytes, int len)
++{
++	int i;
++	DWC_PRINTF("%s: ", name);
++	for (i=0; i<len; i++) {
++		DWC_PRINTF("%02x ", bytes[i]);
++	}
++	DWC_PRINTF("\n");
++}
++#else
++#define dump_bytes(x...)
++#endif
++
++static dwc_cc_t *alloc_cc(void *mem_ctx, uint8_t *name, uint32_t length)
++{
++	dwc_cc_t *cc = dwc_alloc(mem_ctx, sizeof(dwc_cc_t));
++	if (!cc) {
++		return NULL;
++	}
++	DWC_MEMSET(cc, 0, sizeof(dwc_cc_t));
++
++	if (name) {
++		cc->length = length;
++		cc->name = dwc_alloc(mem_ctx, length);
++		if (!cc->name) {
++			dwc_free(mem_ctx, cc);
++			return NULL;
++		}
++
++		DWC_MEMCPY(cc->name, name, length);
++	}
++
++	return cc;
++}
++
++static void free_cc(void *mem_ctx, dwc_cc_t *cc)
++{
++	if (cc->name) {
++		dwc_free(mem_ctx, cc->name);
++	}
++	dwc_free(mem_ctx, cc);
++}
++
++static uint32_t next_uid(dwc_cc_if_t *cc_if)
++{
++	uint32_t uid = 0;
++	dwc_cc_t *cc;
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		if (cc->uid > uid) {
++			uid = cc->uid;
++		}
++	}
++
++	if (uid == 0) {
++		uid = 255;
++	}
++
++	return uid + 1;
++}
++
++static dwc_cc_t *cc_find(dwc_cc_if_t *cc_if, uint32_t uid)
++{
++	dwc_cc_t *cc;
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		if (cc->uid == uid) {
++			return cc;
++		}
++	}
++	return NULL;
++}
++
++static unsigned int cc_data_size(dwc_cc_if_t *cc_if)
++{
++	unsigned int size = 0;
++	dwc_cc_t *cc;
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		size += (48 + 1);
++		if (cc->name) {
++			size += cc->length;
++		}
++	}
++	return size;
++}
++
++static uint32_t cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid)
++{
++	uint32_t uid = 0;
++	dwc_cc_t *cc;
++
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		if (DWC_MEMCMP(cc->chid, chid, 16) == 0) {
++			uid = cc->uid;
++			break;
++		}
++	}
++	return uid;
++}
++static uint32_t cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid)
++{
++	uint32_t uid = 0;
++	dwc_cc_t *cc;
++
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		if (DWC_MEMCMP(cc->cdid, cdid, 16) == 0) {
++			uid = cc->uid;
++			break;
++		}
++	}
++	return uid;
++}
++
++/* Internal cc_add */
++static int32_t cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid,
++		      uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length)
++{
++	dwc_cc_t *cc;
++	uint32_t uid;
++
++	if (cc_if->is_host) {
++		uid = cc_match_cdid(cc_if, cdid);
++	}
++	else {
++		uid = cc_match_chid(cc_if, chid);
++	}
++
++	if (uid) {
++		DWC_DEBUGC("Replacing previous connection context id=%d name=%p name_len=%d", uid, name, length);
++		cc = cc_find(cc_if, uid);
++	}
++	else {
++		cc = alloc_cc(mem_ctx, name, length);
++		cc->uid = next_uid(cc_if);
++		DWC_CIRCLEQ_INSERT_TAIL(&cc_if->list, cc, list_entry);
++	}
++
++	DWC_MEMCPY(&(cc->chid[0]), chid, 16);
++	DWC_MEMCPY(&(cc->cdid[0]), cdid, 16);
++	DWC_MEMCPY(&(cc->ck[0]), ck, 16);
++
++	DWC_DEBUGC("Added connection context id=%d name=%p name_len=%d", cc->uid, name, length);
++	dump_bytes("CHID", cc->chid, 16);
++	dump_bytes("CDID", cc->cdid, 16);
++	dump_bytes("CK", cc->ck, 16);
++	return cc->uid;
++}
++
++/* Internal cc_clear */
++static void cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if)
++{
++	while (!DWC_CIRCLEQ_EMPTY(&cc_if->list)) {
++		dwc_cc_t *cc = DWC_CIRCLEQ_FIRST(&cc_if->list);
++		DWC_CIRCLEQ_REMOVE_INIT(&cc_if->list, cc, list_entry);
++		free_cc(mem_ctx, cc);
++	}
++}
++
++dwc_cc_if_t *dwc_cc_if_alloc(void *mem_ctx, void *mtx_ctx,
++			     dwc_notifier_t *notifier, unsigned is_host)
++{
++	dwc_cc_if_t *cc_if = NULL;
++
++	/* Allocate a common_cc_if structure */
++	cc_if = dwc_alloc(mem_ctx, sizeof(dwc_cc_if_t));
++
++	if (!cc_if)
++		return NULL;
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
++	DWC_MUTEX_ALLOC_LINUX_DEBUG(cc_if->mutex);
++#else
++	cc_if->mutex = dwc_mutex_alloc(mtx_ctx);
++#endif
++	if (!cc_if->mutex) {
++		dwc_free(mem_ctx, cc_if);
++		return NULL;
++	}
++
++	DWC_CIRCLEQ_INIT(&cc_if->list);
++	cc_if->is_host = is_host;
++	cc_if->notifier = notifier;
++	return cc_if;
++}
++
++void dwc_cc_if_free(void *mem_ctx, void *mtx_ctx, dwc_cc_if_t *cc_if)
++{
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
++	DWC_MUTEX_FREE(cc_if->mutex);
++#else
++	dwc_mutex_free(mtx_ctx, cc_if->mutex);
++#endif
++	cc_clear(mem_ctx, cc_if);
++	dwc_free(mem_ctx, cc_if);
++}
++
++static void cc_changed(dwc_cc_if_t *cc_if)
++{
++	if (cc_if->notifier) {
++		dwc_notify(cc_if->notifier, DWC_CC_LIST_CHANGED_NOTIFICATION, cc_if);
++	}
++}
++
++void dwc_cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if)
++{
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc_clear(mem_ctx, cc_if);
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++	cc_changed(cc_if);
++}
++
++int32_t dwc_cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid,
++		   uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length)
++{
++	uint32_t uid;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	uid = cc_add(mem_ctx, cc_if, chid, cdid, ck, name, length);
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++	cc_changed(cc_if);
++
++	return uid;
++}
++
++void dwc_cc_change(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id, uint8_t *chid,
++		   uint8_t *cdid, uint8_t *ck, uint8_t *name, uint8_t length)
++{
++	dwc_cc_t* cc;
++
++	DWC_DEBUGC("Change connection context %d", id);
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc = cc_find(cc_if, id);
++	if (!cc) {
++		DWC_ERROR("Uid %d not found in cc list\n", id);
++		DWC_MUTEX_UNLOCK(cc_if->mutex);
++		return;
++	}
++
++	if (chid) {
++		DWC_MEMCPY(&(cc->chid[0]), chid, 16);
++	}
++	if (cdid) {
++		DWC_MEMCPY(&(cc->cdid[0]), cdid, 16);
++	}
++	if (ck) {
++		DWC_MEMCPY(&(cc->ck[0]), ck, 16);
++	}
++
++	if (name) {
++		if (cc->name) {
++			dwc_free(mem_ctx, cc->name);
++		}
++		cc->name = dwc_alloc(mem_ctx, length);
++		if (!cc->name) {
++			DWC_ERROR("Out of memory in dwc_cc_change()\n");
++			DWC_MUTEX_UNLOCK(cc_if->mutex);
++			return;
++		}
++		cc->length = length;
++		DWC_MEMCPY(cc->name, name, length);
++	}
++
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	cc_changed(cc_if);
++
++	DWC_DEBUGC("Changed connection context id=%d\n", id);
++	dump_bytes("New CHID", cc->chid, 16);
++	dump_bytes("New CDID", cc->cdid, 16);
++	dump_bytes("New CK", cc->ck, 16);
++}
++
++void dwc_cc_remove(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id)
++{
++	dwc_cc_t *cc;
++
++	DWC_DEBUGC("Removing connection context %d", id);
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc = cc_find(cc_if, id);
++	if (!cc) {
++		DWC_ERROR("Uid %d not found in cc list\n", id);
++		DWC_MUTEX_UNLOCK(cc_if->mutex);
++		return;
++	}
++
++	DWC_CIRCLEQ_REMOVE_INIT(&cc_if->list, cc, list_entry);
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++	free_cc(mem_ctx, cc);
++
++	cc_changed(cc_if);
++}
++
++uint8_t *dwc_cc_data_for_save(void *mem_ctx, dwc_cc_if_t *cc_if, unsigned int *length)
++{
++	uint8_t *buf, *x;
++	uint8_t zero = 0;
++	dwc_cc_t *cc;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	*length = cc_data_size(cc_if);
++	if (!(*length)) {
++		DWC_MUTEX_UNLOCK(cc_if->mutex);
++		return NULL;
++	}
++
++	DWC_DEBUGC("Creating data for saving (length=%d)", *length);
++
++	buf = dwc_alloc(mem_ctx, *length);
++	if (!buf) {
++		*length = 0;
++		DWC_MUTEX_UNLOCK(cc_if->mutex);
++		return NULL;
++	}
++
++	x = buf;
++	DWC_CIRCLEQ_FOREACH(cc, &cc_if->list, list_entry) {
++		DWC_MEMCPY(x, cc->chid, 16);
++		x += 16;
++		DWC_MEMCPY(x, cc->cdid, 16);
++		x += 16;
++		DWC_MEMCPY(x, cc->ck, 16);
++		x += 16;
++		if (cc->name) {
++			DWC_MEMCPY(x, &cc->length, 1);
++			x += 1;
++			DWC_MEMCPY(x, cc->name, cc->length);
++			x += cc->length;
++		}
++		else {
++			DWC_MEMCPY(x, &zero, 1);
++			x += 1;
++		}
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	return buf;
++}
++
++void dwc_cc_restore_from_data(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *data, uint32_t length)
++{
++	uint8_t name_length;
++	uint8_t *name;
++	uint8_t *chid;
++	uint8_t *cdid;
++	uint8_t *ck;
++	uint32_t i = 0;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc_clear(mem_ctx, cc_if);
++
++	while (i < length) {
++		chid = &data[i];
++		i += 16;
++		cdid = &data[i];
++		i += 16;
++		ck = &data[i];
++		i += 16;
++
++		name_length = data[i];
++		i ++;
++
++		if (name_length) {
++			name = &data[i];
++			i += name_length;
++		}
++		else {
++			name = NULL;
++		}
++
++		/* check to see if we haven't overflown the buffer */
++		if (i > length) {
++			DWC_ERROR("Data format error while attempting to load CCs "
++				  "(nlen=%d, iter=%d, buflen=%d).\n", name_length, i, length);
++			break;
++		}
++
++		cc_add(mem_ctx, cc_if, chid, cdid, ck, name, name_length);
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	cc_changed(cc_if);
++}
++
++uint32_t dwc_cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid)
++{
++	uint32_t uid = 0;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	uid = cc_match_chid(cc_if, chid);
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++	return uid;
++}
++uint32_t dwc_cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid)
++{
++	uint32_t uid = 0;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	uid = cc_match_cdid(cc_if, cdid);
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++	return uid;
++}
++
++uint8_t *dwc_cc_ck(dwc_cc_if_t *cc_if, int32_t id)
++{
++	uint8_t *ck = NULL;
++	dwc_cc_t *cc;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc = cc_find(cc_if, id);
++	if (cc) {
++		ck = cc->ck;
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	return ck;
++
++}
++
++uint8_t *dwc_cc_chid(dwc_cc_if_t *cc_if, int32_t id)
++{
++	uint8_t *retval = NULL;
++	dwc_cc_t *cc;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc = cc_find(cc_if, id);
++	if (cc) {
++		retval = cc->chid;
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	return retval;
++}
++
++uint8_t *dwc_cc_cdid(dwc_cc_if_t *cc_if, int32_t id)
++{
++	uint8_t *retval = NULL;
++	dwc_cc_t *cc;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	cc = cc_find(cc_if, id);
++	if (cc) {
++		retval = cc->cdid;
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	return retval;
++}
++
++uint8_t *dwc_cc_name(dwc_cc_if_t *cc_if, int32_t id, uint8_t *length)
++{
++	uint8_t *retval = NULL;
++	dwc_cc_t *cc;
++
++	DWC_MUTEX_LOCK(cc_if->mutex);
++	*length = 0;
++	cc = cc_find(cc_if, id);
++	if (cc) {
++		*length = cc->length;
++		retval = cc->name;
++	}
++	DWC_MUTEX_UNLOCK(cc_if->mutex);
++
++	return retval;
++}
++
++#endif	/* DWC_CCLIB */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_cc.h
+@@ -0,0 +1,224 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_cc.h $
++ * $Revision: #4 $
++ * $Date: 2010/09/28 $
++ * $Change: 1596182 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++#ifndef _DWC_CC_H_
++#define _DWC_CC_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/** @file
++ *
++ * This file defines the Context Context library.
++ *
++ * The main data structure is dwc_cc_if_t which is returned by either the
++ * dwc_cc_if_alloc function or returned by the module to the user via a provided
++ * function. The data structure is opaque and should only be manipulated via the
++ * functions provied in this API.
++ *
++ * It manages a list of connection contexts and operations can be performed to
++ * add, remove, query, search, and change, those contexts.  Additionally,
++ * a dwc_notifier_t object can be requested from the manager so that
++ * the user can be notified whenever the context list has changed.
++ */
++
++#include "dwc_os.h"
++#include "dwc_list.h"
++#include "dwc_notifier.h"
++
++
++/* Notifications */
++#define DWC_CC_LIST_CHANGED_NOTIFICATION "DWC_CC_LIST_CHANGED_NOTIFICATION"
++
++struct dwc_cc_if;
++typedef struct dwc_cc_if dwc_cc_if_t;
++
++
++/** @name Connection Context Operations */
++/** @{ */
++
++/** This function allocates memory for a dwc_cc_if_t structure, initializes
++ * fields to default values, and returns a pointer to the structure or NULL on
++ * error. */
++extern dwc_cc_if_t *dwc_cc_if_alloc(void *mem_ctx, void *mtx_ctx,
++				    dwc_notifier_t *notifier, unsigned is_host);
++
++/** Frees the memory for the specified CC structure allocated from
++ * dwc_cc_if_alloc(). */
++extern void dwc_cc_if_free(void *mem_ctx, void *mtx_ctx, dwc_cc_if_t *cc_if);
++
++/** Removes all contexts from the connection context list */
++extern void dwc_cc_clear(void *mem_ctx, dwc_cc_if_t *cc_if);
++
++/** Adds a connection context (CHID, CK, CDID, Name) to the connection context list.
++ * If a CHID already exists, the CK and name are overwritten.  Statistics are
++ * not overwritten.
++ *
++ * @param cc_if The cc_if structure.
++ * @param chid A pointer to the 16-byte CHID.  This value will be copied.
++ * @param ck A pointer to the 16-byte CK.  This value will be copied.
++ * @param cdid A pointer to the 16-byte CDID.  This value will be copied.
++ * @param name An optional host friendly name as defined in the association model
++ * spec.  Must be a UTF16-LE unicode string.  Can be NULL to indicated no name.
++ * @param length The length othe unicode string.
++ * @return A unique identifier used to refer to this context that is valid for
++ * as long as this context is still in the list. */
++extern int32_t dwc_cc_add(void *mem_ctx, dwc_cc_if_t *cc_if, uint8_t *chid,
++			  uint8_t *cdid, uint8_t *ck, uint8_t *name,
++			  uint8_t length);
++
++/** Changes the CHID, CK, CDID, or Name values of a connection context in the
++ * list, preserving any accumulated statistics.  This would typically be called
++ * if the host decideds to change the context with a SET_CONNECTION request.
++ *
++ * @param cc_if The cc_if structure.
++ * @param id The identifier of the connection context.
++ * @param chid A pointer to the 16-byte CHID.  This value will be copied.  NULL
++ * indicates no change.
++ * @param cdid A pointer to the 16-byte CDID.  This value will be copied.  NULL
++ * indicates no change.
++ * @param ck A pointer to the 16-byte CK.  This value will be copied.  NULL
++ * indicates no change.
++ * @param name Host friendly name UTF16-LE.  NULL indicates no change.
++ * @param length Length of name. */
++extern void dwc_cc_change(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id,
++			  uint8_t *chid, uint8_t *cdid, uint8_t *ck,
++			  uint8_t *name, uint8_t length);
++
++/** Remove the specified connection context.
++ * @param cc_if The cc_if structure.
++ * @param id The identifier of the connection context to remove. */
++extern void dwc_cc_remove(void *mem_ctx, dwc_cc_if_t *cc_if, int32_t id);
++
++/** Get a binary block of data for the connection context list and attributes.
++ * This data can be used by the OS specific driver to save the connection
++ * context list into non-volatile memory.
++ *
++ * @param cc_if The cc_if structure.
++ * @param length Return the length of the data buffer.
++ * @return A pointer to the data buffer.  The memory for this buffer should be
++ * freed with DWC_FREE() after use. */
++extern uint8_t *dwc_cc_data_for_save(void *mem_ctx, dwc_cc_if_t *cc_if,
++				     unsigned int *length);
++
++/** Restore the connection context list from the binary data that was previously
++ * returned from a call to dwc_cc_data_for_save.  This can be used by the OS specific
++ * driver to load a connection context list from non-volatile memory.
++ *
++ * @param cc_if The cc_if structure.
++ * @param data The data bytes as returned from dwc_cc_data_for_save.
++ * @param length The length of the data. */
++extern void dwc_cc_restore_from_data(void *mem_ctx, dwc_cc_if_t *cc_if,
++				     uint8_t *data, unsigned int length);
++
++/** Find the connection context from the specified CHID.
++ *
++ * @param cc_if The cc_if structure.
++ * @param chid A pointer to the CHID data.
++ * @return A non-zero identifier of the connection context if the CHID matches.
++ * Otherwise returns 0. */
++extern uint32_t dwc_cc_match_chid(dwc_cc_if_t *cc_if, uint8_t *chid);
++
++/** Find the connection context from the specified CDID.
++ *
++ * @param cc_if The cc_if structure.
++ * @param cdid A pointer to the CDID data.
++ * @return A non-zero identifier of the connection context if the CHID matches.
++ * Otherwise returns 0. */
++extern uint32_t dwc_cc_match_cdid(dwc_cc_if_t *cc_if, uint8_t *cdid);
++
++/** Retrieve the CK from the specified connection context.
++ *
++ * @param cc_if The cc_if structure.
++ * @param id The identifier of the connection context.
++ * @return A pointer to the CK data.  The memory does not need to be freed. */
++extern uint8_t *dwc_cc_ck(dwc_cc_if_t *cc_if, int32_t id);
++
++/** Retrieve the CHID from the specified connection context.
++ *
++ * @param cc_if The cc_if structure.
++ * @param id The identifier of the connection context.
++ * @return A pointer to the CHID data.  The memory does not need to be freed. */
++extern uint8_t *dwc_cc_chid(dwc_cc_if_t *cc_if, int32_t id);
++
++/** Retrieve the CDID from the specified connection context.
++ *
++ * @param cc_if The cc_if structure.
++ * @param id The identifier of the connection context.
++ * @return A pointer to the CDID data.  The memory does not need to be freed. */
++extern uint8_t *dwc_cc_cdid(dwc_cc_if_t *cc_if, int32_t id);
++
++extern uint8_t *dwc_cc_name(dwc_cc_if_t *cc_if, int32_t id, uint8_t *length);
++
++/** Checks a buffer for non-zero.
++ * @param id A pointer to a 16 byte buffer.
++ * @return true if the 16 byte value is non-zero. */
++static inline unsigned dwc_assoc_is_not_zero_id(uint8_t *id) {
++	int i;
++	for (i=0; i<16; i++) {
++		if (id[i]) return 1;
++	}
++	return 0;
++}
++
++/** Checks a buffer for zero.
++ * @param id A pointer to a 16 byte buffer.
++ * @return true if the 16 byte value is zero. */
++static inline unsigned dwc_assoc_is_zero_id(uint8_t *id) {
++	return !dwc_assoc_is_not_zero_id(id);
++}
++
++/** Prints an ASCII representation for the 16-byte chid, cdid, or ck, into
++ * buffer. */
++static inline int dwc_print_id_string(char *buffer, uint8_t *id) {
++	char *ptr = buffer;
++	int i;
++	for (i=0; i<16; i++) {
++		ptr += DWC_SPRINTF(ptr, "%02x", id[i]);
++		if (i < 15) {
++			ptr += DWC_SPRINTF(ptr, " ");
++		}
++	}
++	return ptr - buffer;
++}
++
++/** @} */
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _DWC_CC_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_common_fbsd.c
+@@ -0,0 +1,1308 @@
++#include "dwc_os.h"
++#include "dwc_list.h"
++
++#ifdef DWC_CCLIB
++# include "dwc_cc.h"
++#endif
++
++#ifdef DWC_CRYPTOLIB
++# include "dwc_modpow.h"
++# include "dwc_dh.h"
++# include "dwc_crypto.h"
++#endif
++
++#ifdef DWC_NOTIFYLIB
++# include "dwc_notifier.h"
++#endif
++
++/* OS-Level Implementations */
++
++/* This is the FreeBSD 7.0 kernel implementation of the DWC platform library. */
++
++
++/* MISC */
++
++void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size)
++{
++	return memset(dest, byte, size);
++}
++
++void *DWC_MEMCPY(void *dest, void const *src, uint32_t size)
++{
++	return memcpy(dest, src, size);
++}
++
++void *DWC_MEMMOVE(void *dest, void *src, uint32_t size)
++{
++	bcopy(src, dest, size);
++	return dest;
++}
++
++int DWC_MEMCMP(void *m1, void *m2, uint32_t size)
++{
++	return memcmp(m1, m2, size);
++}
++
++int DWC_STRNCMP(void *s1, void *s2, uint32_t size)
++{
++	return strncmp(s1, s2, size);
++}
++
++int DWC_STRCMP(void *s1, void *s2)
++{
++	return strcmp(s1, s2);
++}
++
++int DWC_STRLEN(char const *str)
++{
++	return strlen(str);
++}
++
++char *DWC_STRCPY(char *to, char const *from)
++{
++	return strcpy(to, from);
++}
++
++char *DWC_STRDUP(char const *str)
++{
++	int len = DWC_STRLEN(str) + 1;
++	char *new = DWC_ALLOC_ATOMIC(len);
++
++	if (!new) {
++		return NULL;
++	}
++
++	DWC_MEMCPY(new, str, len);
++	return new;
++}
++
++int DWC_ATOI(char *str, int32_t *value)
++{
++	char *end = NULL;
++
++	*value = strtol(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++int DWC_ATOUI(char *str, uint32_t *value)
++{
++	char *end = NULL;
++
++	*value = strtoul(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++
++#ifdef DWC_UTFLIB
++/* From usbstring.c */
++
++int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len)
++{
++	int	count = 0;
++	u8	c;
++	u16	uchar;
++
++	/* this insists on correct encodings, though not minimal ones.
++	 * BUT it currently rejects legit 4-byte UTF-8 code points,
++	 * which need surrogate pairs.  (Unicode 3.1 can use them.)
++	 */
++	while (len != 0 && (c = (u8) *s++) != 0) {
++		if (unlikely(c & 0x80)) {
++			// 2-byte sequence:
++			// 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
++			if ((c & 0xe0) == 0xc0) {
++				uchar = (c & 0x1f) << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++			// 3-byte sequence (most CJKV characters):
++			// zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
++			} else if ((c & 0xf0) == 0xe0) {
++				uchar = (c & 0x0f) << 12;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++				/* no bogus surrogates */
++				if (0xd800 <= uchar && uchar <= 0xdfff)
++					goto fail;
++
++			// 4-byte sequence (surrogate pairs, currently rare):
++			// 11101110wwwwzzzzyy + 110111yyyyxxxxxx
++			//     = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
++			// (uuuuu = wwww + 1)
++			// FIXME accept the surrogate code points (only)
++			} else
++				goto fail;
++		} else
++			uchar = c;
++		put_unaligned (cpu_to_le16 (uchar), cp++);
++		count++;
++		len--;
++	}
++	return count;
++fail:
++	return -1;
++}
++
++#endif	/* DWC_UTFLIB */
++
++
++/* dwc_debug.h */
++
++dwc_bool_t DWC_IN_IRQ(void)
++{
++//	return in_irq();
++	return 0;
++}
++
++dwc_bool_t DWC_IN_BH(void)
++{
++//	return in_softirq();
++	return 0;
++}
++
++void DWC_VPRINTF(char *format, va_list args)
++{
++	vprintf(format, args);
++}
++
++int DWC_VSNPRINTF(char *str, int size, char *format, va_list args)
++{
++	return vsnprintf(str, size, format, args);
++}
++
++void DWC_PRINTF(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++int DWC_SPRINTF(char *buffer, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsprintf(buffer, format, args);
++	va_end(args);
++	return retval;
++}
++
++int DWC_SNPRINTF(char *buffer, int size, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsnprintf(buffer, size, format, args);
++	va_end(args);
++	return retval;
++}
++
++void __DWC_WARN(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void __DWC_ERROR(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void DWC_EXCEPTION(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++//	BUG_ON(1);	???
++}
++
++#ifdef DEBUG
++void __DWC_DEBUG(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++#endif
++
++
++/* dwc_mem.h */
++
++#if 0
++dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size,
++				uint32_t align,
++				uint32_t alloc)
++{
++	struct dma_pool *pool = dma_pool_create("Pool", NULL,
++						size, align, alloc);
++	return (dwc_pool_t *)pool;
++}
++
++void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool)
++{
++	dma_pool_destroy((struct dma_pool *)pool);
++}
++
++void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++//	return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr);
++	return dma_pool_alloc((struct dma_pool *)pool, M_WAITOK, dma_addr);
++}
++
++void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++	void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr);
++	memset(..);
++}
++
++void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr)
++{
++	dma_pool_free(pool, vaddr, daddr);
++}
++#endif
++
++static void dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
++{
++	if (error)
++		return;
++	*(bus_addr_t *)arg = segs[0].ds_addr;
++}
++
++void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr)
++{
++	dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
++	int error;
++
++	error = bus_dma_tag_create(
++#if __FreeBSD_version >= 700000
++			bus_get_dma_tag(dma->dev),	/* parent */
++#else
++			NULL,				/* parent */
++#endif
++			4, 0,				/* alignment, bounds */
++			BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
++			BUS_SPACE_MAXADDR,		/* highaddr */
++			NULL, NULL,			/* filter, filterarg */
++			size,				/* maxsize */
++			1,				/* nsegments */
++			size,				/* maxsegsize */
++			0,				/* flags */
++			NULL,				/* lockfunc */
++			NULL,				/* lockarg */
++			&dma->dma_tag);
++	if (error) {
++		device_printf(dma->dev, "%s: bus_dma_tag_create failed: %d\n",
++			      __func__, error);
++		goto fail_0;
++	}
++
++	error = bus_dmamem_alloc(dma->dma_tag, &dma->dma_vaddr,
++				 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &dma->dma_map);
++	if (error) {
++		device_printf(dma->dev, "%s: bus_dmamem_alloc(%ju) failed: %d\n",
++			      __func__, (uintmax_t)size, error);
++		goto fail_1;
++	}
++
++	dma->dma_paddr = 0;
++	error = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr, size,
++				dmamap_cb, &dma->dma_paddr, BUS_DMA_NOWAIT);
++	if (error || dma->dma_paddr == 0) {
++		device_printf(dma->dev, "%s: bus_dmamap_load failed: %d\n",
++			      __func__, error);
++		goto fail_2;
++	}
++
++	*dma_addr = dma->dma_paddr;
++	return dma->dma_vaddr;
++
++fail_2:
++	bus_dmamap_unload(dma->dma_tag, dma->dma_map);
++fail_1:
++	bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
++	bus_dma_tag_destroy(dma->dma_tag);
++fail_0:
++	dma->dma_map = NULL;
++	dma->dma_tag = NULL;
++
++	return NULL;
++}
++
++void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr)
++{
++	dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
++
++	if (dma->dma_tag == NULL)
++		return;
++	if (dma->dma_map != NULL) {
++		bus_dmamap_sync(dma->dma_tag, dma->dma_map,
++				BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
++		bus_dmamap_unload(dma->dma_tag, dma->dma_map);
++		bus_dmamem_free(dma->dma_tag, dma->dma_vaddr, dma->dma_map);
++		dma->dma_map = NULL;
++	}
++
++	bus_dma_tag_destroy(dma->dma_tag);
++	dma->dma_tag = NULL;
++}
++
++void *__DWC_ALLOC(void *mem_ctx, uint32_t size)
++{
++	return malloc(size, M_DEVBUF, M_WAITOK | M_ZERO);
++}
++
++void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size)
++{
++	return malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO);
++}
++
++void __DWC_FREE(void *mem_ctx, void *addr)
++{
++	free(addr, M_DEVBUF);
++}
++
++
++#ifdef DWC_CRYPTOLIB
++/* dwc_crypto.h */
++
++void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length)
++{
++	get_random_bytes(buffer, length);
++}
++
++int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out)
++{
++	struct crypto_blkcipher *tfm;
++	struct blkcipher_desc desc;
++	struct scatterlist sgd;
++	struct scatterlist sgs;
++
++	tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
++	if (tfm == NULL) {
++		printk("failed to load transform for aes CBC\n");
++		return -1;
++	}
++
++	crypto_blkcipher_setkey(tfm, key, keylen);
++	crypto_blkcipher_set_iv(tfm, iv, 16);
++
++	sg_init_one(&sgd, out, messagelen);
++	sg_init_one(&sgs, message, messagelen);
++
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) {
++		crypto_free_blkcipher(tfm);
++		DWC_ERROR("AES CBC encryption failed");
++		return -1;
++	}
++
++	crypto_free_blkcipher(tfm);
++	return 0;
++}
++
++int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for sha256: %ld", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, len);
++	crypto_hash_digest(&desc, &sg, len, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++
++int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen,
++		    uint8_t *key, uint32_t keylen, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for hmac(sha256): %ld", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, messagelen);
++	crypto_hash_setkey(tfm, key, keylen);
++	crypto_hash_digest(&desc, &sg, messagelen, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++
++#endif	/* DWC_CRYPTOLIB */
++
++
++/* Byte Ordering Conversions */
++
++uint32_t DWC_CPU_TO_LE32(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_CPU_TO_BE32(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_LE32_TO_CPU(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_BE32_TO_CPU(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint16_t DWC_CPU_TO_LE16(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_CPU_TO_BE16(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_LE16_TO_CPU(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_BE16_TO_CPU(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++
++/* Registers */
++
++uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	return bus_space_read_4(io->iot, io->ioh, ior);
++}
++
++#if 0
++uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	return bus_space_read_8(io->iot, io->ioh, ior);
++}
++#endif
++
++void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_4(io->iot, io->ioh, ior, value);
++}
++
++#if 0
++void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_8(io->iot, io->ioh, ior, value);
++}
++#endif
++
++void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask,
++		      uint32_t set_mask)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_4(io->iot, io->ioh, ior,
++			  (bus_space_read_4(io->iot, io->ioh, ior) &
++			   ~clear_mask) | set_mask);
++}
++
++#if 0
++void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask,
++		      uint64_t set_mask)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_8(io->iot, io->ioh, ior,
++			  (bus_space_read_8(io->iot, io->ioh, ior) &
++			   ~clear_mask) | set_mask);
++}
++#endif
++
++
++/* Locking */
++
++dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void)
++{
++	struct mtx *sl = DWC_ALLOC(sizeof(*sl));
++
++	if (!sl) {
++		DWC_ERROR("Cannot allocate memory for spinlock");
++		return NULL;
++	}
++
++	mtx_init(sl, "dw3spn", NULL, MTX_SPIN);
++	return (dwc_spinlock_t *)sl;
++}
++
++void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock)
++{
++	struct mtx *sl = (struct mtx *)lock;
++
++	mtx_destroy(sl);
++	DWC_FREE(sl);
++}
++
++void DWC_SPINLOCK(dwc_spinlock_t *lock)
++{
++	mtx_lock_spin((struct mtx *)lock);	// ???
++}
++
++void DWC_SPINUNLOCK(dwc_spinlock_t *lock)
++{
++	mtx_unlock_spin((struct mtx *)lock);	// ???
++}
++
++void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags)
++{
++	mtx_lock_spin((struct mtx *)lock);
++}
++
++void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags)
++{
++	mtx_unlock_spin((struct mtx *)lock);
++}
++
++dwc_mutex_t *DWC_MUTEX_ALLOC(void)
++{
++	struct mtx *m;
++	dwc_mutex_t *mutex = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mtx));
++
++	if (!mutex) {
++		DWC_ERROR("Cannot allocate memory for mutex");
++		return NULL;
++	}
++
++	m = (struct mtx *)mutex;
++	mtx_init(m, "dw3mtx", NULL, MTX_DEF);
++	return mutex;
++}
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
++#else
++void DWC_MUTEX_FREE(dwc_mutex_t *mutex)
++{
++	mtx_destroy((struct mtx *)mutex);
++	DWC_FREE(mutex);
++}
++#endif
++
++void DWC_MUTEX_LOCK(dwc_mutex_t *mutex)
++{
++	struct mtx *m = (struct mtx *)mutex;
++
++	mtx_lock(m);
++}
++
++int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex)
++{
++	struct mtx *m = (struct mtx *)mutex;
++
++	return mtx_trylock(m);
++}
++
++void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex)
++{
++	struct mtx *m = (struct mtx *)mutex;
++
++	mtx_unlock(m);
++}
++
++
++/* Timing */
++
++void DWC_UDELAY(uint32_t usecs)
++{
++	DELAY(usecs);
++}
++
++void DWC_MDELAY(uint32_t msecs)
++{
++	do {
++		DELAY(1000);
++	} while (--msecs);
++}
++
++void DWC_MSLEEP(uint32_t msecs)
++{
++	struct timeval tv;
++
++	tv.tv_sec = msecs / 1000;
++	tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
++	pause("dw3slp", tvtohz(&tv));
++}
++
++uint32_t DWC_TIME(void)
++{
++	struct timeval tv;
++
++	microuptime(&tv);	// or getmicrouptime? (less precise, but faster)
++	return tv.tv_sec * 1000 + tv.tv_usec / 1000;
++}
++
++
++/* Timers */
++
++struct dwc_timer {
++	struct callout t;
++	char *name;
++	dwc_spinlock_t *lock;
++	dwc_timer_callback_t cb;
++	void *data;
++};
++
++dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data)
++{
++	dwc_timer_t *t = DWC_ALLOC(sizeof(*t));
++
++	if (!t) {
++		DWC_ERROR("Cannot allocate memory for timer");
++		return NULL;
++	}
++
++	callout_init(&t->t, 1);
++
++	t->name = DWC_STRDUP(name);
++	if (!t->name) {
++		DWC_ERROR("Cannot allocate memory for timer->name");
++		goto no_name;
++	}
++
++	t->lock = DWC_SPINLOCK_ALLOC();
++	if (!t->lock) {
++		DWC_ERROR("Cannot allocate memory for lock");
++		goto no_lock;
++	}
++
++	t->cb = cb;
++	t->data = data;
++
++	return t;
++
++ no_lock:
++	DWC_FREE(t->name);
++ no_name:
++	DWC_FREE(t);
++
++	return NULL;
++}
++
++void DWC_TIMER_FREE(dwc_timer_t *timer)
++{
++	callout_stop(&timer->t);
++	DWC_SPINLOCK_FREE(timer->lock);
++	DWC_FREE(timer->name);
++	DWC_FREE(timer);
++}
++
++void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time)
++{
++	struct timeval tv;
++
++	tv.tv_sec = time / 1000;
++	tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
++	callout_reset(&timer->t, tvtohz(&tv), timer->cb, timer->data);
++}
++
++void DWC_TIMER_CANCEL(dwc_timer_t *timer)
++{
++	callout_stop(&timer->t);
++}
++
++
++/* Wait Queues */
++
++struct dwc_waitq {
++	struct mtx lock;
++	int abort;
++};
++
++dwc_waitq_t *DWC_WAITQ_ALLOC(void)
++{
++	dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		DWC_ERROR("Cannot allocate memory for waitqueue");
++		return NULL;
++	}
++
++	mtx_init(&wq->lock, "dw3wtq", NULL, MTX_DEF);
++	wq->abort = 0;
++
++	return wq;
++}
++
++void DWC_WAITQ_FREE(dwc_waitq_t *wq)
++{
++	mtx_destroy(&wq->lock);
++	DWC_FREE(wq);
++}
++
++int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data)
++{
++//	intrmask_t ipl;
++	int result = 0;
++
++	mtx_lock(&wq->lock);
++//	ipl = splbio();
++
++	/* Skip the sleep if already aborted or triggered */
++	if (!wq->abort && !cond(data)) {
++//		splx(ipl);
++		result = msleep(wq, &wq->lock, PCATCH, "dw3wat", 0); // infinite timeout
++//		ipl = splbio();
++	}
++
++	if (result == ERESTART) {	// signaled - restart
++		result = -DWC_E_RESTART;
++
++	} else if (result == EINTR) {	// signaled - interrupt
++		result = -DWC_E_ABORT;
++
++	} else if (wq->abort) {
++		result = -DWC_E_ABORT;
++
++	} else {
++		result = 0;
++	}
++
++	wq->abort = 0;
++//	splx(ipl);
++	mtx_unlock(&wq->lock);
++	return result;
++}
++
++int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond,
++			       void *data, int32_t msecs)
++{
++	struct timeval tv, tv1, tv2;
++//	intrmask_t ipl;
++	int result = 0;
++
++	tv.tv_sec = msecs / 1000;
++	tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
++
++	mtx_lock(&wq->lock);
++//	ipl = splbio();
++
++	/* Skip the sleep if already aborted or triggered */
++	if (!wq->abort && !cond(data)) {
++//		splx(ipl);
++		getmicrouptime(&tv1);
++		result = msleep(wq, &wq->lock, PCATCH, "dw3wto", tvtohz(&tv));
++		getmicrouptime(&tv2);
++//		ipl = splbio();
++	}
++
++	if (result == 0) {			// awoken
++		if (wq->abort) {
++			result = -DWC_E_ABORT;
++		} else {
++			tv2.tv_usec -= tv1.tv_usec;
++			if (tv2.tv_usec < 0) {
++				tv2.tv_usec += 1000000;
++				tv2.tv_sec--;
++			}
++
++			tv2.tv_sec -= tv1.tv_sec;
++			result = tv2.tv_sec * 1000 + tv2.tv_usec / 1000;
++			result = msecs - result;
++			if (result <= 0)
++				result = 1;
++		}
++	} else if (result == ERESTART) {	// signaled - restart
++		result = -DWC_E_RESTART;
++
++	} else if (result == EINTR) {		// signaled - interrupt
++		result = -DWC_E_ABORT;
++
++	} else {				// timed out
++		result = -DWC_E_TIMEOUT;
++	}
++
++	wq->abort = 0;
++//	splx(ipl);
++	mtx_unlock(&wq->lock);
++	return result;
++}
++
++void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq)
++{
++	wakeup(wq);
++}
++
++void DWC_WAITQ_ABORT(dwc_waitq_t *wq)
++{
++//	intrmask_t ipl;
++
++	mtx_lock(&wq->lock);
++//	ipl = splbio();
++	wq->abort = 1;
++	wakeup(wq);
++//	splx(ipl);
++	mtx_unlock(&wq->lock);
++}
++
++
++/* Threading */
++
++struct dwc_thread {
++	struct proc *proc;
++	int abort;
++};
++
++dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data)
++{
++	int retval;
++	dwc_thread_t *thread = DWC_ALLOC(sizeof(*thread));
++
++	if (!thread) {
++		return NULL;
++	}
++
++	thread->abort = 0;
++	retval = kthread_create((void (*)(void *))func, data, &thread->proc,
++				RFPROC | RFNOWAIT, 0, "%s", name);
++	if (retval) {
++		DWC_FREE(thread);
++		return NULL;
++	}
++
++	return thread;
++}
++
++int DWC_THREAD_STOP(dwc_thread_t *thread)
++{
++	int retval;
++
++	thread->abort = 1;
++	retval = tsleep(&thread->abort, 0, "dw3stp", 60 * hz);
++
++	if (retval == 0) {
++		/* DWC_THREAD_EXIT() will free the thread struct */
++		return 0;
++	}
++
++	/* NOTE: We leak the thread struct if thread doesn't die */
++
++	if (retval == EWOULDBLOCK) {
++		return -DWC_E_TIMEOUT;
++	}
++
++	return -DWC_E_UNKNOWN;
++}
++
++dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread)
++{
++	return thread->abort;
++}
++
++void DWC_THREAD_EXIT(dwc_thread_t *thread)
++{
++	wakeup(&thread->abort);
++	DWC_FREE(thread);
++	kthread_exit(0);
++}
++
++
++/* tasklets
++ - Runs in interrupt context (cannot sleep)
++ - Each tasklet runs on a single CPU [ How can we ensure this on FreeBSD? Does it matter? ]
++ - Different tasklets can be running simultaneously on different CPUs [ shouldn't matter ]
++ */
++struct dwc_tasklet {
++	struct task t;
++	dwc_tasklet_callback_t cb;
++	void *data;
++};
++
++static void tasklet_callback(void *data, int pending)	// what to do with pending ???
++{
++	dwc_tasklet_t *task = (dwc_tasklet_t *)data;
++
++	task->cb(task->data);
++}
++
++dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data)
++{
++	dwc_tasklet_t *task = DWC_ALLOC(sizeof(*task));
++
++	if (task) {
++		task->cb = cb;
++		task->data = data;
++		TASK_INIT(&task->t, 0, tasklet_callback, task);
++	} else {
++		DWC_ERROR("Cannot allocate memory for tasklet");
++	}
++
++	return task;
++}
++
++void DWC_TASK_FREE(dwc_tasklet_t *task)
++{
++	taskqueue_drain(taskqueue_fast, &task->t);	// ???
++	DWC_FREE(task);
++}
++
++void DWC_TASK_SCHEDULE(dwc_tasklet_t *task)
++{
++	/* Uses predefined system queue */
++	taskqueue_enqueue_fast(taskqueue_fast, &task->t);
++}
++
++
++/* workqueues
++ - Runs in process context (can sleep)
++ */
++typedef struct work_container {
++	dwc_work_callback_t cb;
++	void *data;
++	dwc_workq_t *wq;
++	char *name;
++	int hz;
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_ENTRY(work_container) entry;
++#endif
++	struct task task;
++} work_container_t;
++
++#ifdef DEBUG
++DWC_CIRCLEQ_HEAD(work_container_queue, work_container);
++#endif
++
++struct dwc_workq {
++	struct taskqueue *taskq;
++	dwc_spinlock_t *lock;
++	dwc_waitq_t *waitq;
++	int pending;
++
++#ifdef DEBUG
++	struct work_container_queue entries;
++#endif
++};
++
++static void do_work(void *data, int pending)	// what to do with pending ???
++{
++	work_container_t *container = (work_container_t *)data;
++	dwc_workq_t *wq = container->wq;
++	dwc_irqflags_t flags;
++
++	if (container->hz) {
++		pause("dw3wrk", container->hz);
++	}
++
++	container->cb(container->data);
++	DWC_DEBUG("Work done: %s, container=%p", container->name, container);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_REMOVE(&wq->entries, container, entry);
++#endif
++	if (container->name)
++		DWC_FREE(container->name);
++	DWC_FREE(container);
++	wq->pending--;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++}
++
++static int work_done(void *data)
++{
++	dwc_workq_t *workq = (dwc_workq_t *)data;
++
++	return workq->pending == 0;
++}
++
++int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout)
++{
++	return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout);
++}
++
++dwc_workq_t *DWC_WORKQ_ALLOC(char *name)
++{
++	dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		DWC_ERROR("Cannot allocate memory for workqueue");
++		return NULL;
++	}
++
++	wq->taskq = taskqueue_create(name, M_NOWAIT, taskqueue_thread_enqueue, &wq->taskq);
++	if (!wq->taskq) {
++		DWC_ERROR("Cannot allocate memory for taskqueue");
++		goto no_taskq;
++	}
++
++	wq->pending = 0;
++
++	wq->lock = DWC_SPINLOCK_ALLOC();
++	if (!wq->lock) {
++		DWC_ERROR("Cannot allocate memory for spinlock");
++		goto no_lock;
++	}
++
++	wq->waitq = DWC_WAITQ_ALLOC();
++	if (!wq->waitq) {
++		DWC_ERROR("Cannot allocate memory for waitqueue");
++		goto no_waitq;
++	}
++
++	taskqueue_start_threads(&wq->taskq, 1, PWAIT, "%s taskq", "dw3tsk");
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INIT(&wq->entries);
++#endif
++	return wq;
++
++ no_waitq:
++	DWC_SPINLOCK_FREE(wq->lock);
++ no_lock:
++	taskqueue_free(wq->taskq);
++ no_taskq:
++	DWC_FREE(wq);
++
++	return NULL;
++}
++
++void DWC_WORKQ_FREE(dwc_workq_t *wq)
++{
++#ifdef DEBUG
++	dwc_irqflags_t flags;
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++
++	if (wq->pending != 0) {
++		struct work_container *container;
++
++		DWC_ERROR("Destroying work queue with pending work");
++
++		DWC_CIRCLEQ_FOREACH(container, &wq->entries, entry) {
++			DWC_ERROR("Work %s still pending", container->name);
++		}
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++#endif
++	DWC_WAITQ_FREE(wq->waitq);
++	DWC_SPINLOCK_FREE(wq->lock);
++	taskqueue_free(wq->taskq);
++	DWC_FREE(wq);
++}
++
++void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data,
++			char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++	container->hz = 0;
++
++	DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
++
++	TASK_INIT(&container->task, 0, do_work, container);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry);
++#endif
++	taskqueue_enqueue_fast(wq->taskq, &container->task);
++}
++
++void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb,
++				void *data, uint32_t time, char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	struct timeval tv;
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++
++	tv.tv_sec = time / 1000;
++	tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
++	container->hz = tvtohz(&tv);
++
++	DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
++
++	TASK_INIT(&container->task, 0, do_work, container);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry);
++#endif
++	taskqueue_enqueue_fast(wq->taskq, &container->task);
++}
++
++int DWC_WORKQ_PENDING(dwc_workq_t *wq)
++{
++	return wq->pending;
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_common_linux.c
+@@ -0,0 +1,1409 @@
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/kthread.h>
++
++#ifdef DWC_CCLIB
++# include "dwc_cc.h"
++#endif
++
++#ifdef DWC_CRYPTOLIB
++# include "dwc_modpow.h"
++# include "dwc_dh.h"
++# include "dwc_crypto.h"
++#endif
++
++#ifdef DWC_NOTIFYLIB
++# include "dwc_notifier.h"
++#endif
++
++/* OS-Level Implementations */
++
++/* This is the Linux kernel implementation of the DWC platform library. */
++#include <linux/moduleparam.h>
++#include <linux/ctype.h>
++#include <linux/crypto.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/dma-mapping.h>
++#include <linux/cdev.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/jiffies.h>
++#include <linux/list.h>
++#include <linux/pci.h>
++#include <linux/random.h>
++#include <linux/scatterlist.h>
++#include <linux/slab.h>
++#include <linux/stat.h>
++#include <linux/string.h>
++#include <linux/timer.h>
++#include <linux/usb.h>
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++# include <linux/usb/gadget.h>
++#else
++# include <linux/usb_gadget.h>
++#endif
++
++#include <asm/io.h>
++#include <asm/page.h>
++#include <asm/uaccess.h>
++#include <asm/unaligned.h>
++
++#include "dwc_os.h"
++#include "dwc_list.h"
++
++
++/* MISC */
++
++void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size)
++{
++	return memset(dest, byte, size);
++}
++
++void *DWC_MEMCPY(void *dest, void const *src, uint32_t size)
++{
++	return memcpy(dest, src, size);
++}
++
++void *DWC_MEMMOVE(void *dest, void *src, uint32_t size)
++{
++	return memmove(dest, src, size);
++}
++
++int DWC_MEMCMP(void *m1, void *m2, uint32_t size)
++{
++	return memcmp(m1, m2, size);
++}
++
++int DWC_STRNCMP(void *s1, void *s2, uint32_t size)
++{
++	return strncmp(s1, s2, size);
++}
++
++int DWC_STRCMP(void *s1, void *s2)
++{
++	return strcmp(s1, s2);
++}
++
++int DWC_STRLEN(char const *str)
++{
++	return strlen(str);
++}
++
++char *DWC_STRCPY(char *to, char const *from)
++{
++	return strcpy(to, from);
++}
++
++char *DWC_STRDUP(char const *str)
++{
++	int len = DWC_STRLEN(str) + 1;
++	char *new = DWC_ALLOC_ATOMIC(len);
++
++	if (!new) {
++		return NULL;
++	}
++
++	DWC_MEMCPY(new, str, len);
++	return new;
++}
++
++int DWC_ATOI(const char *str, int32_t *value)
++{
++	char *end = NULL;
++
++	*value = simple_strtol(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++int DWC_ATOUI(const char *str, uint32_t *value)
++{
++	char *end = NULL;
++
++	*value = simple_strtoul(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++
++#ifdef DWC_UTFLIB
++/* From usbstring.c */
++
++int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len)
++{
++	int	count = 0;
++	u8	c;
++	u16	uchar;
++
++	/* this insists on correct encodings, though not minimal ones.
++	 * BUT it currently rejects legit 4-byte UTF-8 code points,
++	 * which need surrogate pairs.  (Unicode 3.1 can use them.)
++	 */
++	while (len != 0 && (c = (u8) *s++) != 0) {
++		if (unlikely(c & 0x80)) {
++			// 2-byte sequence:
++			// 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
++			if ((c & 0xe0) == 0xc0) {
++				uchar = (c & 0x1f) << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++			// 3-byte sequence (most CJKV characters):
++			// zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
++			} else if ((c & 0xf0) == 0xe0) {
++				uchar = (c & 0x0f) << 12;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++				/* no bogus surrogates */
++				if (0xd800 <= uchar && uchar <= 0xdfff)
++					goto fail;
++
++			// 4-byte sequence (surrogate pairs, currently rare):
++			// 11101110wwwwzzzzyy + 110111yyyyxxxxxx
++			//     = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
++			// (uuuuu = wwww + 1)
++			// FIXME accept the surrogate code points (only)
++			} else
++				goto fail;
++		} else
++			uchar = c;
++		put_unaligned (cpu_to_le16 (uchar), cp++);
++		count++;
++		len--;
++	}
++	return count;
++fail:
++	return -1;
++}
++#endif	/* DWC_UTFLIB */
++
++
++/* dwc_debug.h */
++
++dwc_bool_t DWC_IN_IRQ(void)
++{
++	return in_irq();
++}
++
++dwc_bool_t DWC_IN_BH(void)
++{
++	return in_softirq();
++}
++
++void DWC_VPRINTF(char *format, va_list args)
++{
++	vprintk(format, args);
++}
++
++int DWC_VSNPRINTF(char *str, int size, char *format, va_list args)
++{
++	return vsnprintf(str, size, format, args);
++}
++
++void DWC_PRINTF(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++int DWC_SPRINTF(char *buffer, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsprintf(buffer, format, args);
++	va_end(args);
++	return retval;
++}
++
++int DWC_SNPRINTF(char *buffer, int size, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsnprintf(buffer, size, format, args);
++	va_end(args);
++	return retval;
++}
++
++void __DWC_WARN(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_PRINTF(KERN_WARNING);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void __DWC_ERROR(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_PRINTF(KERN_ERR);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void DWC_EXCEPTION(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_PRINTF(KERN_ERR);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++	BUG_ON(1);
++}
++
++#ifdef DEBUG
++void __DWC_DEBUG(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_PRINTF(KERN_DEBUG);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++#endif
++
++
++/* dwc_mem.h */
++
++#if 0
++dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size,
++				uint32_t align,
++				uint32_t alloc)
++{
++	struct dma_pool *pool = dma_pool_create("Pool", NULL,
++						size, align, alloc);
++	return (dwc_pool_t *)pool;
++}
++
++void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool)
++{
++	dma_pool_destroy((struct dma_pool *)pool);
++}
++
++void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++	return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr);
++}
++
++void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++	void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr);
++	memset(..);
++}
++
++void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr)
++{
++	dma_pool_free(pool, vaddr, daddr);
++}
++#endif
++
++void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr)
++{
++	return dma_alloc_coherent(dma_ctx, size, dma_addr, GFP_KERNEL | GFP_DMA32);
++}
++
++void *__DWC_DMA_ALLOC_ATOMIC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr)
++{
++	return dma_alloc_coherent(dma_ctx, size, dma_addr, GFP_ATOMIC);
++}
++
++void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr)
++{
++	dma_free_coherent(dma_ctx, size, virt_addr, dma_addr);
++}
++
++void *__DWC_ALLOC(void *mem_ctx, uint32_t size)
++{
++	return kzalloc(size, GFP_KERNEL);
++}
++
++void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size)
++{
++	return kzalloc(size, GFP_ATOMIC);
++}
++
++void __DWC_FREE(void *mem_ctx, void *addr)
++{
++	kfree(addr);
++}
++
++
++#ifdef DWC_CRYPTOLIB
++/* dwc_crypto.h */
++
++void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length)
++{
++	get_random_bytes(buffer, length);
++}
++
++int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out)
++{
++	struct crypto_blkcipher *tfm;
++	struct blkcipher_desc desc;
++	struct scatterlist sgd;
++	struct scatterlist sgs;
++
++	tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
++	if (tfm == NULL) {
++		printk("failed to load transform for aes CBC\n");
++		return -1;
++	}
++
++	crypto_blkcipher_setkey(tfm, key, keylen);
++	crypto_blkcipher_set_iv(tfm, iv, 16);
++
++	sg_init_one(&sgd, out, messagelen);
++	sg_init_one(&sgs, message, messagelen);
++
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) {
++		crypto_free_blkcipher(tfm);
++		DWC_ERROR("AES CBC encryption failed");
++		return -1;
++	}
++
++	crypto_free_blkcipher(tfm);
++	return 0;
++}
++
++int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for sha256: %ld\n", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, len);
++	crypto_hash_digest(&desc, &sg, len, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++
++int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen,
++		    uint8_t *key, uint32_t keylen, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for hmac(sha256): %ld\n", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, messagelen);
++	crypto_hash_setkey(tfm, key, keylen);
++	crypto_hash_digest(&desc, &sg, messagelen, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++#endif	/* DWC_CRYPTOLIB */
++
++
++/* Byte Ordering Conversions */
++
++uint32_t DWC_CPU_TO_LE32(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_CPU_TO_BE32(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_LE32_TO_CPU(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_BE32_TO_CPU(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint16_t DWC_CPU_TO_LE16(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_CPU_TO_BE16(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_LE16_TO_CPU(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_BE16_TO_CPU(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++
++/* Registers */
++
++uint32_t DWC_READ_REG32(uint32_t volatile *reg)
++{
++	return readl(reg);
++}
++
++#if 0
++uint64_t DWC_READ_REG64(uint64_t volatile *reg)
++{
++}
++#endif
++
++void DWC_WRITE_REG32(uint32_t volatile *reg, uint32_t value)
++{
++	writel(value, reg);
++}
++
++#if 0
++void DWC_WRITE_REG64(uint64_t volatile *reg, uint64_t value)
++{
++}
++#endif
++
++void DWC_MODIFY_REG32(uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask)
++{
++	writel((readl(reg) & ~clear_mask) | set_mask, reg);
++}
++
++#if 0
++void DWC_MODIFY_REG64(uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask)
++{
++}
++#endif
++
++
++/* Locking */
++
++dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void)
++{
++	spinlock_t *sl = (spinlock_t *)1;
++
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	sl = DWC_ALLOC(sizeof(*sl));
++	if (!sl) {
++		DWC_ERROR("Cannot allocate memory for spinlock\n");
++		return NULL;
++	}
++
++	spin_lock_init(sl);
++#endif
++	return (dwc_spinlock_t *)sl;
++}
++
++void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock)
++{
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	DWC_FREE(lock);
++#endif
++}
++
++void DWC_SPINLOCK(dwc_spinlock_t *lock)
++{
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	spin_lock((spinlock_t *)lock);
++#endif
++}
++
++void DWC_SPINUNLOCK(dwc_spinlock_t *lock)
++{
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	spin_unlock((spinlock_t *)lock);
++#endif
++}
++
++void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags)
++{
++	dwc_irqflags_t f;
++
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	spin_lock_irqsave((spinlock_t *)lock, f);
++#else
++	local_irq_save(f);
++#endif
++	*flags = f;
++}
++
++void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags)
++{
++#if defined(CONFIG_PREEMPT) || defined(CONFIG_SMP)
++	spin_unlock_irqrestore((spinlock_t *)lock, flags);
++#else
++	local_irq_restore(flags);
++#endif
++}
++
++dwc_mutex_t *DWC_MUTEX_ALLOC(void)
++{
++	struct mutex *m;
++	dwc_mutex_t *mutex = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mutex));
++
++	if (!mutex) {
++		DWC_ERROR("Cannot allocate memory for mutex\n");
++		return NULL;
++	}
++
++	m = (struct mutex *)mutex;
++	mutex_init(m);
++	return mutex;
++}
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
++#else
++void DWC_MUTEX_FREE(dwc_mutex_t *mutex)
++{
++	mutex_destroy((struct mutex *)mutex);
++	DWC_FREE(mutex);
++}
++#endif
++
++void DWC_MUTEX_LOCK(dwc_mutex_t *mutex)
++{
++	struct mutex *m = (struct mutex *)mutex;
++	mutex_lock(m);
++}
++
++int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex)
++{
++	struct mutex *m = (struct mutex *)mutex;
++	return mutex_trylock(m);
++}
++
++void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex)
++{
++	struct mutex *m = (struct mutex *)mutex;
++	mutex_unlock(m);
++}
++
++
++/* Timing */
++
++void DWC_UDELAY(uint32_t usecs)
++{
++	udelay(usecs);
++}
++
++void DWC_MDELAY(uint32_t msecs)
++{
++	mdelay(msecs);
++}
++
++void DWC_MSLEEP(uint32_t msecs)
++{
++	msleep(msecs);
++}
++
++uint32_t DWC_TIME(void)
++{
++	return jiffies_to_msecs(jiffies);
++}
++
++
++/* Timers */
++
++struct dwc_timer {
++	struct timer_list t;
++	char *name;
++	dwc_timer_callback_t cb;
++	void *data;
++	uint8_t scheduled;
++	dwc_spinlock_t *lock;
++};
++
++static void timer_callback(struct timer_list *tt)
++{
++	dwc_timer_t *timer = from_timer(timer, tt, t);
++	dwc_irqflags_t flags;
++
++	DWC_SPINLOCK_IRQSAVE(timer->lock, &flags);
++	timer->scheduled = 0;
++	DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags);
++	DWC_DEBUGC("Timer %s callback", timer->name);
++	timer->cb(timer->data);
++}
++
++dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data)
++{
++	dwc_timer_t *t = DWC_ALLOC(sizeof(*t));
++
++	if (!t) {
++		DWC_ERROR("Cannot allocate memory for timer");
++		return NULL;
++	}
++
++	t->name = DWC_STRDUP(name);
++	if (!t->name) {
++		DWC_ERROR("Cannot allocate memory for timer->name");
++		goto no_name;
++	}
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK))
++	DWC_SPINLOCK_ALLOC_LINUX_DEBUG(t->lock);
++#else
++	t->lock = DWC_SPINLOCK_ALLOC();
++#endif
++	if (!t->lock) {
++		DWC_ERROR("Cannot allocate memory for lock");
++		goto no_lock;
++	}
++
++	t->scheduled = 0;
++	t->t.expires = jiffies;
++	timer_setup(&t->t, timer_callback, 0);
++
++	t->cb = cb;
++	t->data = data;
++
++	return t;
++
++ no_lock:
++	DWC_FREE(t->name);
++ no_name:
++	DWC_FREE(t);
++	return NULL;
++}
++
++void DWC_TIMER_FREE(dwc_timer_t *timer)
++{
++	dwc_irqflags_t flags;
++
++	DWC_SPINLOCK_IRQSAVE(timer->lock, &flags);
++
++	if (timer->scheduled) {
++		del_timer(&timer->t);
++		timer->scheduled = 0;
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags);
++	DWC_SPINLOCK_FREE(timer->lock);
++	DWC_FREE(timer->name);
++	DWC_FREE(timer);
++}
++
++void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time)
++{
++	dwc_irqflags_t flags;
++
++	DWC_SPINLOCK_IRQSAVE(timer->lock, &flags);
++
++	if (!timer->scheduled) {
++		timer->scheduled = 1;
++		DWC_DEBUGC("Scheduling timer %s to expire in +%d msec", timer->name, time);
++		timer->t.expires = jiffies + msecs_to_jiffies(time);
++		add_timer(&timer->t);
++	} else {
++		DWC_DEBUGC("Modifying timer %s to expire in +%d msec", timer->name, time);
++		mod_timer(&timer->t, jiffies + msecs_to_jiffies(time));
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(timer->lock, flags);
++}
++
++void DWC_TIMER_CANCEL(dwc_timer_t *timer)
++{
++	del_timer(&timer->t);
++}
++
++
++/* Wait Queues */
++
++struct dwc_waitq {
++	wait_queue_head_t queue;
++	int abort;
++};
++
++dwc_waitq_t *DWC_WAITQ_ALLOC(void)
++{
++	dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		DWC_ERROR("Cannot allocate memory for waitqueue\n");
++		return NULL;
++	}
++
++	init_waitqueue_head(&wq->queue);
++	wq->abort = 0;
++	return wq;
++}
++
++void DWC_WAITQ_FREE(dwc_waitq_t *wq)
++{
++	DWC_FREE(wq);
++}
++
++int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data)
++{
++	int result = wait_event_interruptible(wq->queue,
++					      cond(data) || wq->abort);
++	if (result == -ERESTARTSYS) {
++		wq->abort = 0;
++		return -DWC_E_RESTART;
++	}
++
++	if (wq->abort == 1) {
++		wq->abort = 0;
++		return -DWC_E_ABORT;
++	}
++
++	wq->abort = 0;
++
++	if (result == 0) {
++		return 0;
++	}
++
++	return -DWC_E_UNKNOWN;
++}
++
++int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond,
++			       void *data, int32_t msecs)
++{
++	int32_t tmsecs;
++	int result = wait_event_interruptible_timeout(wq->queue,
++						      cond(data) || wq->abort,
++						      msecs_to_jiffies(msecs));
++	if (result == -ERESTARTSYS) {
++		wq->abort = 0;
++		return -DWC_E_RESTART;
++	}
++
++	if (wq->abort == 1) {
++		wq->abort = 0;
++		return -DWC_E_ABORT;
++	}
++
++	wq->abort = 0;
++
++	if (result > 0) {
++		tmsecs = jiffies_to_msecs(result);
++		if (!tmsecs) {
++			return 1;
++		}
++
++		return tmsecs;
++	}
++
++	if (result == 0) {
++		return -DWC_E_TIMEOUT;
++	}
++
++	return -DWC_E_UNKNOWN;
++}
++
++void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq)
++{
++	wq->abort = 0;
++	wake_up_interruptible(&wq->queue);
++}
++
++void DWC_WAITQ_ABORT(dwc_waitq_t *wq)
++{
++	wq->abort = 1;
++	wake_up_interruptible(&wq->queue);
++}
++
++
++/* Threading */
++
++dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data)
++{
++	struct task_struct *thread = kthread_run(func, data, name);
++
++	if (thread == ERR_PTR(-ENOMEM)) {
++		return NULL;
++	}
++
++	return (dwc_thread_t *)thread;
++}
++
++int DWC_THREAD_STOP(dwc_thread_t *thread)
++{
++	return kthread_stop((struct task_struct *)thread);
++}
++
++dwc_bool_t DWC_THREAD_SHOULD_STOP(void)
++{
++	return kthread_should_stop();
++}
++
++
++/* tasklets
++ - run in interrupt context (cannot sleep)
++ - each tasklet runs on a single CPU
++ - different tasklets can be running simultaneously on different CPUs
++ */
++struct dwc_tasklet {
++	struct tasklet_struct t;
++	dwc_tasklet_callback_t cb;
++	void *data;
++};
++
++static void tasklet_callback(unsigned long data)
++{
++	dwc_tasklet_t *t = (dwc_tasklet_t *)data;
++	t->cb(t->data);
++}
++
++dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data)
++{
++	dwc_tasklet_t *t = DWC_ALLOC(sizeof(*t));
++
++	if (t) {
++		t->cb = cb;
++		t->data = data;
++		tasklet_init(&t->t, tasklet_callback, (unsigned long)t);
++	} else {
++		DWC_ERROR("Cannot allocate memory for tasklet\n");
++	}
++
++	return t;
++}
++
++void DWC_TASK_FREE(dwc_tasklet_t *task)
++{
++	DWC_FREE(task);
++}
++
++void DWC_TASK_SCHEDULE(dwc_tasklet_t *task)
++{
++	tasklet_schedule(&task->t);
++}
++
++void DWC_TASK_HI_SCHEDULE(dwc_tasklet_t *task)
++{
++	tasklet_hi_schedule(&task->t);
++}
++
++
++/* workqueues
++ - run in process context (can sleep)
++ */
++typedef struct work_container {
++	dwc_work_callback_t cb;
++	void *data;
++	dwc_workq_t *wq;
++	char *name;
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_ENTRY(work_container) entry;
++#endif
++	struct delayed_work work;
++} work_container_t;
++
++#ifdef DEBUG
++DWC_CIRCLEQ_HEAD(work_container_queue, work_container);
++#endif
++
++struct dwc_workq {
++	struct workqueue_struct *wq;
++	dwc_spinlock_t *lock;
++	dwc_waitq_t *waitq;
++	int pending;
++
++#ifdef DEBUG
++	struct work_container_queue entries;
++#endif
++};
++
++static void do_work(struct work_struct *work)
++{
++	dwc_irqflags_t flags;
++	struct delayed_work *dw = container_of(work, struct delayed_work, work);
++	work_container_t *container = container_of(dw, struct work_container, work);
++	dwc_workq_t *wq = container->wq;
++
++	container->cb(container->data);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_REMOVE(&wq->entries, container, entry);
++#endif
++	DWC_DEBUGC("Work done: %s, container=%p", container->name, container);
++	if (container->name) {
++		DWC_FREE(container->name);
++	}
++	DWC_FREE(container);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending--;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++}
++
++static int work_done(void *data)
++{
++	dwc_workq_t *workq = (dwc_workq_t *)data;
++	return workq->pending == 0;
++}
++
++int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout)
++{
++	return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout);
++}
++
++dwc_workq_t *DWC_WORKQ_ALLOC(char *name)
++{
++	dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		return NULL;
++	}
++
++	wq->wq = create_singlethread_workqueue(name);
++	if (!wq->wq) {
++		goto no_wq;
++	}
++
++	wq->pending = 0;
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK))
++	DWC_SPINLOCK_ALLOC_LINUX_DEBUG(wq->lock);
++#else
++	wq->lock = DWC_SPINLOCK_ALLOC();
++#endif
++	if (!wq->lock) {
++		goto no_lock;
++	}
++
++	wq->waitq = DWC_WAITQ_ALLOC();
++	if (!wq->waitq) {
++		goto no_waitq;
++	}
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INIT(&wq->entries);
++#endif
++	return wq;
++
++ no_waitq:
++	DWC_SPINLOCK_FREE(wq->lock);
++ no_lock:
++	destroy_workqueue(wq->wq);
++ no_wq:
++	DWC_FREE(wq);
++
++	return NULL;
++}
++
++void DWC_WORKQ_FREE(dwc_workq_t *wq)
++{
++#ifdef DEBUG
++	if (wq->pending != 0) {
++		struct work_container *wc;
++		DWC_ERROR("Destroying work queue with pending work");
++		DWC_CIRCLEQ_FOREACH(wc, &wq->entries, entry) {
++			DWC_ERROR("Work %s still pending", wc->name);
++		}
++	}
++#endif
++	destroy_workqueue(wq->wq);
++	DWC_SPINLOCK_FREE(wq->lock);
++	DWC_WAITQ_FREE(wq->waitq);
++	DWC_FREE(wq);
++}
++
++void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data,
++			char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container\n");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name\n");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++	DWC_DEBUGC("Queueing work: %s, container=%p", container->name, container);
++	INIT_WORK(&container->work.work, do_work);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry);
++#endif
++	queue_work(wq->wq, &container->work.work);
++}
++
++void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb,
++				void *data, uint32_t time, char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container\n");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name\n");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++	DWC_DEBUGC("Queueing work: %s, container=%p", container->name, container);
++	INIT_DELAYED_WORK(&container->work, do_work);
++
++#ifdef DEBUG
++	DWC_CIRCLEQ_INSERT_TAIL(&wq->entries, container, entry);
++#endif
++	queue_delayed_work(wq->wq, &container->work, msecs_to_jiffies(time));
++}
++
++int DWC_WORKQ_PENDING(dwc_workq_t *wq)
++{
++	return wq->pending;
++}
++
++
++#ifdef DWC_LIBMODULE
++
++#ifdef DWC_CCLIB
++/* CC */
++EXPORT_SYMBOL(dwc_cc_if_alloc);
++EXPORT_SYMBOL(dwc_cc_if_free);
++EXPORT_SYMBOL(dwc_cc_clear);
++EXPORT_SYMBOL(dwc_cc_add);
++EXPORT_SYMBOL(dwc_cc_remove);
++EXPORT_SYMBOL(dwc_cc_change);
++EXPORT_SYMBOL(dwc_cc_data_for_save);
++EXPORT_SYMBOL(dwc_cc_restore_from_data);
++EXPORT_SYMBOL(dwc_cc_match_chid);
++EXPORT_SYMBOL(dwc_cc_match_cdid);
++EXPORT_SYMBOL(dwc_cc_ck);
++EXPORT_SYMBOL(dwc_cc_chid);
++EXPORT_SYMBOL(dwc_cc_cdid);
++EXPORT_SYMBOL(dwc_cc_name);
++#endif	/* DWC_CCLIB */
++
++#ifdef DWC_CRYPTOLIB
++# ifndef CONFIG_MACH_IPMATE
++/* Modpow */
++EXPORT_SYMBOL(dwc_modpow);
++
++/* DH */
++EXPORT_SYMBOL(dwc_dh_modpow);
++EXPORT_SYMBOL(dwc_dh_derive_keys);
++EXPORT_SYMBOL(dwc_dh_pk);
++# endif	/* CONFIG_MACH_IPMATE */
++
++/* Crypto */
++EXPORT_SYMBOL(dwc_wusb_aes_encrypt);
++EXPORT_SYMBOL(dwc_wusb_cmf);
++EXPORT_SYMBOL(dwc_wusb_prf);
++EXPORT_SYMBOL(dwc_wusb_fill_ccm_nonce);
++EXPORT_SYMBOL(dwc_wusb_gen_nonce);
++EXPORT_SYMBOL(dwc_wusb_gen_key);
++EXPORT_SYMBOL(dwc_wusb_gen_mic);
++#endif	/* DWC_CRYPTOLIB */
++
++/* Notification */
++#ifdef DWC_NOTIFYLIB
++EXPORT_SYMBOL(dwc_alloc_notification_manager);
++EXPORT_SYMBOL(dwc_free_notification_manager);
++EXPORT_SYMBOL(dwc_register_notifier);
++EXPORT_SYMBOL(dwc_unregister_notifier);
++EXPORT_SYMBOL(dwc_add_observer);
++EXPORT_SYMBOL(dwc_remove_observer);
++EXPORT_SYMBOL(dwc_notify);
++#endif
++
++/* Memory Debugging Routines */
++#ifdef DWC_DEBUG_MEMORY
++EXPORT_SYMBOL(dwc_alloc_debug);
++EXPORT_SYMBOL(dwc_alloc_atomic_debug);
++EXPORT_SYMBOL(dwc_free_debug);
++EXPORT_SYMBOL(dwc_dma_alloc_debug);
++EXPORT_SYMBOL(dwc_dma_free_debug);
++#endif
++
++EXPORT_SYMBOL(DWC_MEMSET);
++EXPORT_SYMBOL(DWC_MEMCPY);
++EXPORT_SYMBOL(DWC_MEMMOVE);
++EXPORT_SYMBOL(DWC_MEMCMP);
++EXPORT_SYMBOL(DWC_STRNCMP);
++EXPORT_SYMBOL(DWC_STRCMP);
++EXPORT_SYMBOL(DWC_STRLEN);
++EXPORT_SYMBOL(DWC_STRCPY);
++EXPORT_SYMBOL(DWC_STRDUP);
++EXPORT_SYMBOL(DWC_ATOI);
++EXPORT_SYMBOL(DWC_ATOUI);
++
++#ifdef DWC_UTFLIB
++EXPORT_SYMBOL(DWC_UTF8_TO_UTF16LE);
++#endif	/* DWC_UTFLIB */
++
++EXPORT_SYMBOL(DWC_IN_IRQ);
++EXPORT_SYMBOL(DWC_IN_BH);
++EXPORT_SYMBOL(DWC_VPRINTF);
++EXPORT_SYMBOL(DWC_VSNPRINTF);
++EXPORT_SYMBOL(DWC_PRINTF);
++EXPORT_SYMBOL(DWC_SPRINTF);
++EXPORT_SYMBOL(DWC_SNPRINTF);
++EXPORT_SYMBOL(__DWC_WARN);
++EXPORT_SYMBOL(__DWC_ERROR);
++EXPORT_SYMBOL(DWC_EXCEPTION);
++
++#ifdef DEBUG
++EXPORT_SYMBOL(__DWC_DEBUG);
++#endif
++
++EXPORT_SYMBOL(__DWC_DMA_ALLOC);
++EXPORT_SYMBOL(__DWC_DMA_ALLOC_ATOMIC);
++EXPORT_SYMBOL(__DWC_DMA_FREE);
++EXPORT_SYMBOL(__DWC_ALLOC);
++EXPORT_SYMBOL(__DWC_ALLOC_ATOMIC);
++EXPORT_SYMBOL(__DWC_FREE);
++
++#ifdef DWC_CRYPTOLIB
++EXPORT_SYMBOL(DWC_RANDOM_BYTES);
++EXPORT_SYMBOL(DWC_AES_CBC);
++EXPORT_SYMBOL(DWC_SHA256);
++EXPORT_SYMBOL(DWC_HMAC_SHA256);
++#endif
++
++EXPORT_SYMBOL(DWC_CPU_TO_LE32);
++EXPORT_SYMBOL(DWC_CPU_TO_BE32);
++EXPORT_SYMBOL(DWC_LE32_TO_CPU);
++EXPORT_SYMBOL(DWC_BE32_TO_CPU);
++EXPORT_SYMBOL(DWC_CPU_TO_LE16);
++EXPORT_SYMBOL(DWC_CPU_TO_BE16);
++EXPORT_SYMBOL(DWC_LE16_TO_CPU);
++EXPORT_SYMBOL(DWC_BE16_TO_CPU);
++EXPORT_SYMBOL(DWC_READ_REG32);
++EXPORT_SYMBOL(DWC_WRITE_REG32);
++EXPORT_SYMBOL(DWC_MODIFY_REG32);
++
++#if 0
++EXPORT_SYMBOL(DWC_READ_REG64);
++EXPORT_SYMBOL(DWC_WRITE_REG64);
++EXPORT_SYMBOL(DWC_MODIFY_REG64);
++#endif
++
++EXPORT_SYMBOL(DWC_SPINLOCK_ALLOC);
++EXPORT_SYMBOL(DWC_SPINLOCK_FREE);
++EXPORT_SYMBOL(DWC_SPINLOCK);
++EXPORT_SYMBOL(DWC_SPINUNLOCK);
++EXPORT_SYMBOL(DWC_SPINLOCK_IRQSAVE);
++EXPORT_SYMBOL(DWC_SPINUNLOCK_IRQRESTORE);
++EXPORT_SYMBOL(DWC_MUTEX_ALLOC);
++
++#if (!defined(DWC_LINUX) || !defined(CONFIG_DEBUG_MUTEXES))
++EXPORT_SYMBOL(DWC_MUTEX_FREE);
++#endif
++
++EXPORT_SYMBOL(DWC_MUTEX_LOCK);
++EXPORT_SYMBOL(DWC_MUTEX_TRYLOCK);
++EXPORT_SYMBOL(DWC_MUTEX_UNLOCK);
++EXPORT_SYMBOL(DWC_UDELAY);
++EXPORT_SYMBOL(DWC_MDELAY);
++EXPORT_SYMBOL(DWC_MSLEEP);
++EXPORT_SYMBOL(DWC_TIME);
++EXPORT_SYMBOL(DWC_TIMER_ALLOC);
++EXPORT_SYMBOL(DWC_TIMER_FREE);
++EXPORT_SYMBOL(DWC_TIMER_SCHEDULE);
++EXPORT_SYMBOL(DWC_TIMER_CANCEL);
++EXPORT_SYMBOL(DWC_WAITQ_ALLOC);
++EXPORT_SYMBOL(DWC_WAITQ_FREE);
++EXPORT_SYMBOL(DWC_WAITQ_WAIT);
++EXPORT_SYMBOL(DWC_WAITQ_WAIT_TIMEOUT);
++EXPORT_SYMBOL(DWC_WAITQ_TRIGGER);
++EXPORT_SYMBOL(DWC_WAITQ_ABORT);
++EXPORT_SYMBOL(DWC_THREAD_RUN);
++EXPORT_SYMBOL(DWC_THREAD_STOP);
++EXPORT_SYMBOL(DWC_THREAD_SHOULD_STOP);
++EXPORT_SYMBOL(DWC_TASK_ALLOC);
++EXPORT_SYMBOL(DWC_TASK_FREE);
++EXPORT_SYMBOL(DWC_TASK_SCHEDULE);
++EXPORT_SYMBOL(DWC_WORKQ_WAIT_WORK_DONE);
++EXPORT_SYMBOL(DWC_WORKQ_ALLOC);
++EXPORT_SYMBOL(DWC_WORKQ_FREE);
++EXPORT_SYMBOL(DWC_WORKQ_SCHEDULE);
++EXPORT_SYMBOL(DWC_WORKQ_SCHEDULE_DELAYED);
++EXPORT_SYMBOL(DWC_WORKQ_PENDING);
++
++static int dwc_common_port_init_module(void)
++{
++	int result = 0;
++
++	printk(KERN_DEBUG "Module dwc_common_port init\n" );
++
++#ifdef DWC_DEBUG_MEMORY
++	result = dwc_memory_debug_start(NULL);
++	if (result) {
++		printk(KERN_ERR
++		       "dwc_memory_debug_start() failed with error %d\n",
++		       result);
++		return result;
++	}
++#endif
++
++#ifdef DWC_NOTIFYLIB
++	result = dwc_alloc_notification_manager(NULL, NULL);
++	if (result) {
++		printk(KERN_ERR
++		       "dwc_alloc_notification_manager() failed with error %d\n",
++		       result);
++		return result;
++	}
++#endif
++	return result;
++}
++
++static void dwc_common_port_exit_module(void)
++{
++	printk(KERN_DEBUG "Module dwc_common_port exit\n" );
++
++#ifdef DWC_NOTIFYLIB
++	dwc_free_notification_manager();
++#endif
++
++#ifdef DWC_DEBUG_MEMORY
++	dwc_memory_debug_stop();
++#endif
++}
++
++module_init(dwc_common_port_init_module);
++module_exit(dwc_common_port_exit_module);
++
++MODULE_DESCRIPTION("DWC Common Library - Portable version");
++MODULE_AUTHOR("Synopsys Inc.");
++MODULE_LICENSE ("GPL");
++
++#endif	/* DWC_LIBMODULE */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_common_nbsd.c
+@@ -0,0 +1,1275 @@
++#include "dwc_os.h"
++#include "dwc_list.h"
++
++#ifdef DWC_CCLIB
++# include "dwc_cc.h"
++#endif
++
++#ifdef DWC_CRYPTOLIB
++# include "dwc_modpow.h"
++# include "dwc_dh.h"
++# include "dwc_crypto.h"
++#endif
++
++#ifdef DWC_NOTIFYLIB
++# include "dwc_notifier.h"
++#endif
++
++/* OS-Level Implementations */
++
++/* This is the NetBSD 4.0.1 kernel implementation of the DWC platform library. */
++
++
++/* MISC */
++
++void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size)
++{
++	return memset(dest, byte, size);
++}
++
++void *DWC_MEMCPY(void *dest, void const *src, uint32_t size)
++{
++	return memcpy(dest, src, size);
++}
++
++void *DWC_MEMMOVE(void *dest, void *src, uint32_t size)
++{
++	bcopy(src, dest, size);
++	return dest;
++}
++
++int DWC_MEMCMP(void *m1, void *m2, uint32_t size)
++{
++	return memcmp(m1, m2, size);
++}
++
++int DWC_STRNCMP(void *s1, void *s2, uint32_t size)
++{
++	return strncmp(s1, s2, size);
++}
++
++int DWC_STRCMP(void *s1, void *s2)
++{
++	return strcmp(s1, s2);
++}
++
++int DWC_STRLEN(char const *str)
++{
++	return strlen(str);
++}
++
++char *DWC_STRCPY(char *to, char const *from)
++{
++	return strcpy(to, from);
++}
++
++char *DWC_STRDUP(char const *str)
++{
++	int len = DWC_STRLEN(str) + 1;
++	char *new = DWC_ALLOC_ATOMIC(len);
++
++	if (!new) {
++		return NULL;
++	}
++
++	DWC_MEMCPY(new, str, len);
++	return new;
++}
++
++int DWC_ATOI(char *str, int32_t *value)
++{
++	char *end = NULL;
++
++	/* NetBSD doesn't have 'strtol' in the kernel, but 'strtoul'
++	 * should be equivalent on 2's complement machines
++	 */
++	*value = strtoul(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++int DWC_ATOUI(char *str, uint32_t *value)
++{
++	char *end = NULL;
++
++	*value = strtoul(str, &end, 0);
++	if (*end == '\0') {
++		return 0;
++	}
++
++	return -1;
++}
++
++
++#ifdef DWC_UTFLIB
++/* From usbstring.c */
++
++int DWC_UTF8_TO_UTF16LE(uint8_t const *s, uint16_t *cp, unsigned len)
++{
++	int	count = 0;
++	u8	c;
++	u16	uchar;
++
++	/* this insists on correct encodings, though not minimal ones.
++	 * BUT it currently rejects legit 4-byte UTF-8 code points,
++	 * which need surrogate pairs.  (Unicode 3.1 can use them.)
++	 */
++	while (len != 0 && (c = (u8) *s++) != 0) {
++		if (unlikely(c & 0x80)) {
++			// 2-byte sequence:
++			// 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
++			if ((c & 0xe0) == 0xc0) {
++				uchar = (c & 0x1f) << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++			// 3-byte sequence (most CJKV characters):
++			// zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
++			} else if ((c & 0xf0) == 0xe0) {
++				uchar = (c & 0x0f) << 12;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++				/* no bogus surrogates */
++				if (0xd800 <= uchar && uchar <= 0xdfff)
++					goto fail;
++
++			// 4-byte sequence (surrogate pairs, currently rare):
++			// 11101110wwwwzzzzyy + 110111yyyyxxxxxx
++			//     = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
++			// (uuuuu = wwww + 1)
++			// FIXME accept the surrogate code points (only)
++			} else
++				goto fail;
++		} else
++			uchar = c;
++		put_unaligned (cpu_to_le16 (uchar), cp++);
++		count++;
++		len--;
++	}
++	return count;
++fail:
++	return -1;
++}
++
++#endif	/* DWC_UTFLIB */
++
++
++/* dwc_debug.h */
++
++dwc_bool_t DWC_IN_IRQ(void)
++{
++//	return in_irq();
++	return 0;
++}
++
++dwc_bool_t DWC_IN_BH(void)
++{
++//	return in_softirq();
++	return 0;
++}
++
++void DWC_VPRINTF(char *format, va_list args)
++{
++	vprintf(format, args);
++}
++
++int DWC_VSNPRINTF(char *str, int size, char *format, va_list args)
++{
++	return vsnprintf(str, size, format, args);
++}
++
++void DWC_PRINTF(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++int DWC_SPRINTF(char *buffer, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsprintf(buffer, format, args);
++	va_end(args);
++	return retval;
++}
++
++int DWC_SNPRINTF(char *buffer, int size, char *format, ...)
++{
++	int retval;
++	va_list args;
++
++	va_start(args, format);
++	retval = vsnprintf(buffer, size, format, args);
++	va_end(args);
++	return retval;
++}
++
++void __DWC_WARN(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void __DWC_ERROR(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++
++void DWC_EXCEPTION(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++//	BUG_ON(1);	???
++}
++
++#ifdef DEBUG
++void __DWC_DEBUG(char *format, ...)
++{
++	va_list args;
++
++	va_start(args, format);
++	DWC_VPRINTF(format, args);
++	va_end(args);
++}
++#endif
++
++
++/* dwc_mem.h */
++
++#if 0
++dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size,
++				uint32_t align,
++				uint32_t alloc)
++{
++	struct dma_pool *pool = dma_pool_create("Pool", NULL,
++						size, align, alloc);
++	return (dwc_pool_t *)pool;
++}
++
++void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool)
++{
++	dma_pool_destroy((struct dma_pool *)pool);
++}
++
++void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++//	return dma_pool_alloc((struct dma_pool *)pool, GFP_KERNEL, dma_addr);
++	return dma_pool_alloc((struct dma_pool *)pool, M_WAITOK, dma_addr);
++}
++
++void *DWC_DMA_POOL_ZALLOC(dwc_pool_t *pool, uint64_t *dma_addr)
++{
++	void *vaddr = DWC_DMA_POOL_ALLOC(pool, dma_addr);
++	memset(..);
++}
++
++void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr)
++{
++	dma_pool_free(pool, vaddr, daddr);
++}
++#endif
++
++void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr)
++{
++	dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
++	int error;
++
++	error = bus_dmamem_alloc(dma->dma_tag, size, 1, size, dma->segs,
++				 sizeof(dma->segs) / sizeof(dma->segs[0]),
++				 &dma->nsegs, BUS_DMA_NOWAIT);
++	if (error) {
++		printf("%s: bus_dmamem_alloc(%ju) failed: %d\n", __func__,
++		       (uintmax_t)size, error);
++		goto fail_0;
++	}
++
++	error = bus_dmamem_map(dma->dma_tag, dma->segs, dma->nsegs, size,
++			       (caddr_t *)&dma->dma_vaddr,
++			       BUS_DMA_NOWAIT | BUS_DMA_COHERENT);
++	if (error) {
++		printf("%s: bus_dmamem_map failed: %d\n", __func__, error);
++		goto fail_1;
++	}
++
++	error = bus_dmamap_create(dma->dma_tag, size, 1, size, 0,
++				  BUS_DMA_NOWAIT, &dma->dma_map);
++	if (error) {
++		printf("%s: bus_dmamap_create failed: %d\n", __func__, error);
++		goto fail_2;
++	}
++
++	error = bus_dmamap_load(dma->dma_tag, dma->dma_map, dma->dma_vaddr,
++				size, NULL, BUS_DMA_NOWAIT);
++	if (error) {
++		printf("%s: bus_dmamap_load failed: %d\n", __func__, error);
++		goto fail_3;
++	}
++
++	dma->dma_paddr = (bus_addr_t)dma->segs[0].ds_addr;
++	*dma_addr = dma->dma_paddr;
++	return dma->dma_vaddr;
++
++fail_3:
++	bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
++fail_2:
++	bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size);
++fail_1:
++	bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs);
++fail_0:
++	dma->dma_map = NULL;
++	dma->dma_vaddr = NULL;
++	dma->nsegs = 0;
++
++	return NULL;
++}
++
++void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr)
++{
++	dwc_dmactx_t *dma = (dwc_dmactx_t *)dma_ctx;
++
++	if (dma->dma_map != NULL) {
++		bus_dmamap_sync(dma->dma_tag, dma->dma_map, 0, size,
++				BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
++		bus_dmamap_unload(dma->dma_tag, dma->dma_map);
++		bus_dmamap_destroy(dma->dma_tag, dma->dma_map);
++		bus_dmamem_unmap(dma->dma_tag, dma->dma_vaddr, size);
++		bus_dmamem_free(dma->dma_tag, dma->segs, dma->nsegs);
++		dma->dma_paddr = 0;
++		dma->dma_map = NULL;
++		dma->dma_vaddr = NULL;
++		dma->nsegs = 0;
++	}
++}
++
++void *__DWC_ALLOC(void *mem_ctx, uint32_t size)
++{
++	return malloc(size, M_DEVBUF, M_WAITOK | M_ZERO);
++}
++
++void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size)
++{
++	return malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO);
++}
++
++void __DWC_FREE(void *mem_ctx, void *addr)
++{
++	free(addr, M_DEVBUF);
++}
++
++
++#ifdef DWC_CRYPTOLIB
++/* dwc_crypto.h */
++
++void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length)
++{
++	get_random_bytes(buffer, length);
++}
++
++int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out)
++{
++	struct crypto_blkcipher *tfm;
++	struct blkcipher_desc desc;
++	struct scatterlist sgd;
++	struct scatterlist sgs;
++
++	tfm = crypto_alloc_blkcipher("cbc(aes)", 0, CRYPTO_ALG_ASYNC);
++	if (tfm == NULL) {
++		printk("failed to load transform for aes CBC\n");
++		return -1;
++	}
++
++	crypto_blkcipher_setkey(tfm, key, keylen);
++	crypto_blkcipher_set_iv(tfm, iv, 16);
++
++	sg_init_one(&sgd, out, messagelen);
++	sg_init_one(&sgs, message, messagelen);
++
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	if (crypto_blkcipher_encrypt(&desc, &sgd, &sgs, messagelen)) {
++		crypto_free_blkcipher(tfm);
++		DWC_ERROR("AES CBC encryption failed");
++		return -1;
++	}
++
++	crypto_free_blkcipher(tfm);
++	return 0;
++}
++
++int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for sha256: %ld", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, len);
++	crypto_hash_digest(&desc, &sg, len, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++
++int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen,
++		    uint8_t *key, uint32_t keylen, uint8_t *out)
++{
++	struct crypto_hash *tfm;
++	struct hash_desc desc;
++	struct scatterlist sg;
++
++	tfm = crypto_alloc_hash("hmac(sha256)", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm)) {
++		DWC_ERROR("Failed to load transform for hmac(sha256): %ld", PTR_ERR(tfm));
++		return 0;
++	}
++	desc.tfm = tfm;
++	desc.flags = 0;
++
++	sg_init_one(&sg, message, messagelen);
++	crypto_hash_setkey(tfm, key, keylen);
++	crypto_hash_digest(&desc, &sg, messagelen, out);
++	crypto_free_hash(tfm);
++
++	return 1;
++}
++
++#endif	/* DWC_CRYPTOLIB */
++
++
++/* Byte Ordering Conversions */
++
++uint32_t DWC_CPU_TO_LE32(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_CPU_TO_BE32(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_LE32_TO_CPU(uint32_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint32_t DWC_BE32_TO_CPU(uint32_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++
++	return (u_p[3] | (u_p[2] << 8) | (u_p[1] << 16) | (u_p[0] << 24));
++#endif
++}
++
++uint16_t DWC_CPU_TO_LE16(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_CPU_TO_BE16(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_LE16_TO_CPU(uint16_t *p)
++{
++#ifdef __LITTLE_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++uint16_t DWC_BE16_TO_CPU(uint16_t *p)
++{
++#ifdef __BIG_ENDIAN
++	return *p;
++#else
++	uint8_t *u_p = (uint8_t *)p;
++	return (u_p[1] | (u_p[0] << 8));
++#endif
++}
++
++
++/* Registers */
++
++uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	return bus_space_read_4(io->iot, io->ioh, ior);
++}
++
++#if 0
++uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	return bus_space_read_8(io->iot, io->ioh, ior);
++}
++#endif
++
++void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_4(io->iot, io->ioh, ior, value);
++}
++
++#if 0
++void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_8(io->iot, io->ioh, ior, value);
++}
++#endif
++
++void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask,
++		      uint32_t set_mask)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_4(io->iot, io->ioh, ior,
++			  (bus_space_read_4(io->iot, io->ioh, ior) &
++			   ~clear_mask) | set_mask);
++}
++
++#if 0
++void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask,
++		      uint64_t set_mask)
++{
++	dwc_ioctx_t *io = (dwc_ioctx_t *)io_ctx;
++	bus_size_t ior = (bus_size_t)reg;
++
++	bus_space_write_8(io->iot, io->ioh, ior,
++			  (bus_space_read_8(io->iot, io->ioh, ior) &
++			   ~clear_mask) | set_mask);
++}
++#endif
++
++
++/* Locking */
++
++dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void)
++{
++	struct simplelock *sl = DWC_ALLOC(sizeof(*sl));
++
++	if (!sl) {
++		DWC_ERROR("Cannot allocate memory for spinlock");
++		return NULL;
++	}
++
++	simple_lock_init(sl);
++	return (dwc_spinlock_t *)sl;
++}
++
++void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock)
++{
++	struct simplelock *sl = (struct simplelock *)lock;
++
++	DWC_FREE(sl);
++}
++
++void DWC_SPINLOCK(dwc_spinlock_t *lock)
++{
++	simple_lock((struct simplelock *)lock);
++}
++
++void DWC_SPINUNLOCK(dwc_spinlock_t *lock)
++{
++	simple_unlock((struct simplelock *)lock);
++}
++
++void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags)
++{
++	simple_lock((struct simplelock *)lock);
++	*flags = splbio();
++}
++
++void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags)
++{
++	splx(flags);
++	simple_unlock((struct simplelock *)lock);
++}
++
++dwc_mutex_t *DWC_MUTEX_ALLOC(void)
++{
++	dwc_mutex_t *mutex = DWC_ALLOC(sizeof(struct lock));
++
++	if (!mutex) {
++		DWC_ERROR("Cannot allocate memory for mutex");
++		return NULL;
++	}
++
++	lockinit((struct lock *)mutex, 0, "dw3mtx", 0, 0);
++	return mutex;
++}
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES))
++#else
++void DWC_MUTEX_FREE(dwc_mutex_t *mutex)
++{
++	DWC_FREE(mutex);
++}
++#endif
++
++void DWC_MUTEX_LOCK(dwc_mutex_t *mutex)
++{
++	lockmgr((struct lock *)mutex, LK_EXCLUSIVE, NULL);
++}
++
++int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex)
++{
++	int status;
++
++	status = lockmgr((struct lock *)mutex, LK_EXCLUSIVE | LK_NOWAIT, NULL);
++	return status == 0;
++}
++
++void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex)
++{
++	lockmgr((struct lock *)mutex, LK_RELEASE, NULL);
++}
++
++
++/* Timing */
++
++void DWC_UDELAY(uint32_t usecs)
++{
++	DELAY(usecs);
++}
++
++void DWC_MDELAY(uint32_t msecs)
++{
++	do {
++		DELAY(1000);
++	} while (--msecs);
++}
++
++void DWC_MSLEEP(uint32_t msecs)
++{
++	struct timeval tv;
++
++	tv.tv_sec = msecs / 1000;
++	tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
++	tsleep(&tv, 0, "dw3slp", tvtohz(&tv));
++}
++
++uint32_t DWC_TIME(void)
++{
++	struct timeval tv;
++
++	microuptime(&tv);	// or getmicrouptime? (less precise, but faster)
++	return tv.tv_sec * 1000 + tv.tv_usec / 1000;
++}
++
++
++/* Timers */
++
++struct dwc_timer {
++	struct callout t;
++	char *name;
++	dwc_spinlock_t *lock;
++	dwc_timer_callback_t cb;
++	void *data;
++};
++
++dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data)
++{
++	dwc_timer_t *t = DWC_ALLOC(sizeof(*t));
++
++	if (!t) {
++		DWC_ERROR("Cannot allocate memory for timer");
++		return NULL;
++	}
++
++	callout_init(&t->t);
++
++	t->name = DWC_STRDUP(name);
++	if (!t->name) {
++		DWC_ERROR("Cannot allocate memory for timer->name");
++		goto no_name;
++	}
++
++	t->lock = DWC_SPINLOCK_ALLOC();
++	if (!t->lock) {
++		DWC_ERROR("Cannot allocate memory for timer->lock");
++		goto no_lock;
++	}
++
++	t->cb = cb;
++	t->data = data;
++
++	return t;
++
++ no_lock:
++	DWC_FREE(t->name);
++ no_name:
++	DWC_FREE(t);
++
++	return NULL;
++}
++
++void DWC_TIMER_FREE(dwc_timer_t *timer)
++{
++	callout_stop(&timer->t);
++	DWC_SPINLOCK_FREE(timer->lock);
++	DWC_FREE(timer->name);
++	DWC_FREE(timer);
++}
++
++void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time)
++{
++	struct timeval tv;
++
++	tv.tv_sec = time / 1000;
++	tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
++	callout_reset(&timer->t, tvtohz(&tv), timer->cb, timer->data);
++}
++
++void DWC_TIMER_CANCEL(dwc_timer_t *timer)
++{
++	callout_stop(&timer->t);
++}
++
++
++/* Wait Queues */
++
++struct dwc_waitq {
++	struct simplelock lock;
++	int abort;
++};
++
++dwc_waitq_t *DWC_WAITQ_ALLOC(void)
++{
++	dwc_waitq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		DWC_ERROR("Cannot allocate memory for waitqueue");
++		return NULL;
++	}
++
++	simple_lock_init(&wq->lock);
++	wq->abort = 0;
++
++	return wq;
++}
++
++void DWC_WAITQ_FREE(dwc_waitq_t *wq)
++{
++	DWC_FREE(wq);
++}
++
++int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data)
++{
++	int ipl;
++	int result = 0;
++
++	simple_lock(&wq->lock);
++	ipl = splbio();
++
++	/* Skip the sleep if already aborted or triggered */
++	if (!wq->abort && !cond(data)) {
++		splx(ipl);
++		result = ltsleep(wq, PCATCH, "dw3wat", 0, &wq->lock); // infinite timeout
++		ipl = splbio();
++	}
++
++	if (result == 0) {			// awoken
++		if (wq->abort) {
++			wq->abort = 0;
++			result = -DWC_E_ABORT;
++		} else {
++			result = 0;
++		}
++
++		splx(ipl);
++		simple_unlock(&wq->lock);
++	} else {
++		wq->abort = 0;
++		splx(ipl);
++		simple_unlock(&wq->lock);
++
++		if (result == ERESTART) {	// signaled - restart
++			result = -DWC_E_RESTART;
++		} else {			// signaled - must be EINTR
++			result = -DWC_E_ABORT;
++		}
++	}
++
++	return result;
++}
++
++int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond,
++			       void *data, int32_t msecs)
++{
++	struct timeval tv, tv1, tv2;
++	int ipl;
++	int result = 0;
++
++	tv.tv_sec = msecs / 1000;
++	tv.tv_usec = (msecs - tv.tv_sec * 1000) * 1000;
++
++	simple_lock(&wq->lock);
++	ipl = splbio();
++
++	/* Skip the sleep if already aborted or triggered */
++	if (!wq->abort && !cond(data)) {
++		splx(ipl);
++		getmicrouptime(&tv1);
++		result = ltsleep(wq, PCATCH, "dw3wto", tvtohz(&tv), &wq->lock);
++		getmicrouptime(&tv2);
++		ipl = splbio();
++	}
++
++	if (result == 0) {			// awoken
++		if (wq->abort) {
++			wq->abort = 0;
++			splx(ipl);
++			simple_unlock(&wq->lock);
++			result = -DWC_E_ABORT;
++		} else {
++			splx(ipl);
++			simple_unlock(&wq->lock);
++
++			tv2.tv_usec -= tv1.tv_usec;
++			if (tv2.tv_usec < 0) {
++				tv2.tv_usec += 1000000;
++				tv2.tv_sec--;
++			}
++
++			tv2.tv_sec -= tv1.tv_sec;
++			result = tv2.tv_sec * 1000 + tv2.tv_usec / 1000;
++			result = msecs - result;
++			if (result <= 0)
++				result = 1;
++		}
++	} else {
++		wq->abort = 0;
++		splx(ipl);
++		simple_unlock(&wq->lock);
++
++		if (result == ERESTART) {	// signaled - restart
++			result = -DWC_E_RESTART;
++
++		} else if (result == EINTR) {		// signaled - interrupt
++			result = -DWC_E_ABORT;
++
++		} else {				// timed out
++			result = -DWC_E_TIMEOUT;
++		}
++	}
++
++	return result;
++}
++
++void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq)
++{
++	wakeup(wq);
++}
++
++void DWC_WAITQ_ABORT(dwc_waitq_t *wq)
++{
++	int ipl;
++
++	simple_lock(&wq->lock);
++	ipl = splbio();
++	wq->abort = 1;
++	wakeup(wq);
++	splx(ipl);
++	simple_unlock(&wq->lock);
++}
++
++
++/* Threading */
++
++struct dwc_thread {
++	struct proc *proc;
++	int abort;
++};
++
++dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data)
++{
++	int retval;
++	dwc_thread_t *thread = DWC_ALLOC(sizeof(*thread));
++
++	if (!thread) {
++		return NULL;
++	}
++
++	thread->abort = 0;
++	retval = kthread_create1((void (*)(void *))func, data, &thread->proc,
++				 "%s", name);
++	if (retval) {
++		DWC_FREE(thread);
++		return NULL;
++	}
++
++	return thread;
++}
++
++int DWC_THREAD_STOP(dwc_thread_t *thread)
++{
++	int retval;
++
++	thread->abort = 1;
++	retval = tsleep(&thread->abort, 0, "dw3stp", 60 * hz);
++
++	if (retval == 0) {
++		/* DWC_THREAD_EXIT() will free the thread struct */
++		return 0;
++	}
++
++	/* NOTE: We leak the thread struct if thread doesn't die */
++
++	if (retval == EWOULDBLOCK) {
++		return -DWC_E_TIMEOUT;
++	}
++
++	return -DWC_E_UNKNOWN;
++}
++
++dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread)
++{
++	return thread->abort;
++}
++
++void DWC_THREAD_EXIT(dwc_thread_t *thread)
++{
++	wakeup(&thread->abort);
++	DWC_FREE(thread);
++	kthread_exit(0);
++}
++
++/* tasklets
++ - Runs in interrupt context (cannot sleep)
++ - Each tasklet runs on a single CPU
++ - Different tasklets can be running simultaneously on different CPUs
++ [ On NetBSD there is no corresponding mechanism, drivers don't have bottom-
++   halves. So we just call the callback directly from DWC_TASK_SCHEDULE() ]
++ */
++struct dwc_tasklet {
++	dwc_tasklet_callback_t cb;
++	void *data;
++};
++
++static void tasklet_callback(void *data)
++{
++	dwc_tasklet_t *task = (dwc_tasklet_t *)data;
++
++	task->cb(task->data);
++}
++
++dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data)
++{
++	dwc_tasklet_t *task = DWC_ALLOC(sizeof(*task));
++
++	if (task) {
++		task->cb = cb;
++		task->data = data;
++	} else {
++		DWC_ERROR("Cannot allocate memory for tasklet");
++	}
++
++	return task;
++}
++
++void DWC_TASK_FREE(dwc_tasklet_t *task)
++{
++	DWC_FREE(task);
++}
++
++void DWC_TASK_SCHEDULE(dwc_tasklet_t *task)
++{
++	tasklet_callback(task);
++}
++
++
++/* workqueues
++ - Runs in process context (can sleep)
++ */
++typedef struct work_container {
++	dwc_work_callback_t cb;
++	void *data;
++	dwc_workq_t *wq;
++	char *name;
++	int hz;
++	struct work task;
++} work_container_t;
++
++struct dwc_workq {
++	struct workqueue *taskq;
++	dwc_spinlock_t *lock;
++	dwc_waitq_t *waitq;
++	int pending;
++	struct work_container *container;
++};
++
++static void do_work(struct work *task, void *data)
++{
++	dwc_workq_t *wq = (dwc_workq_t *)data;
++	work_container_t *container = wq->container;
++	dwc_irqflags_t flags;
++
++	if (container->hz) {
++		tsleep(container, 0, "dw3wrk", container->hz);
++	}
++
++	container->cb(container->data);
++	DWC_DEBUG("Work done: %s, container=%p", container->name, container);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	if (container->name)
++		DWC_FREE(container->name);
++	DWC_FREE(container);
++	wq->pending--;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++}
++
++static int work_done(void *data)
++{
++	dwc_workq_t *workq = (dwc_workq_t *)data;
++
++	return workq->pending == 0;
++}
++
++int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout)
++{
++	return DWC_WAITQ_WAIT_TIMEOUT(workq->waitq, work_done, workq, timeout);
++}
++
++dwc_workq_t *DWC_WORKQ_ALLOC(char *name)
++{
++	int result;
++	dwc_workq_t *wq = DWC_ALLOC(sizeof(*wq));
++
++	if (!wq) {
++		DWC_ERROR("Cannot allocate memory for workqueue");
++		return NULL;
++	}
++
++	result = workqueue_create(&wq->taskq, name, do_work, wq, 0 /*PWAIT*/,
++				  IPL_BIO, 0);
++	if (result) {
++		DWC_ERROR("Cannot create workqueue");
++		goto no_taskq;
++	}
++
++	wq->pending = 0;
++
++	wq->lock = DWC_SPINLOCK_ALLOC();
++	if (!wq->lock) {
++		DWC_ERROR("Cannot allocate memory for spinlock");
++		goto no_lock;
++	}
++
++	wq->waitq = DWC_WAITQ_ALLOC();
++	if (!wq->waitq) {
++		DWC_ERROR("Cannot allocate memory for waitqueue");
++		goto no_waitq;
++	}
++
++	return wq;
++
++ no_waitq:
++	DWC_SPINLOCK_FREE(wq->lock);
++ no_lock:
++	workqueue_destroy(wq->taskq);
++ no_taskq:
++	DWC_FREE(wq);
++
++	return NULL;
++}
++
++void DWC_WORKQ_FREE(dwc_workq_t *wq)
++{
++#ifdef DEBUG
++	dwc_irqflags_t flags;
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++
++	if (wq->pending != 0) {
++		struct work_container *container = wq->container;
++
++		DWC_ERROR("Destroying work queue with pending work");
++
++		if (container && container->name) {
++			DWC_ERROR("Work %s still pending", container->name);
++		}
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++#endif
++	DWC_WAITQ_FREE(wq->waitq);
++	DWC_SPINLOCK_FREE(wq->lock);
++	workqueue_destroy(wq->taskq);
++	DWC_FREE(wq);
++}
++
++void DWC_WORKQ_SCHEDULE(dwc_workq_t *wq, dwc_work_callback_t cb, void *data,
++			char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++	container->hz = 0;
++	wq->container = container;
++
++	DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
++	workqueue_enqueue(wq->taskq, &container->task);
++}
++
++void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *wq, dwc_work_callback_t cb,
++				void *data, uint32_t time, char *format, ...)
++{
++	dwc_irqflags_t flags;
++	work_container_t *container;
++	static char name[128];
++	struct timeval tv;
++	va_list args;
++
++	va_start(args, format);
++	DWC_VSNPRINTF(name, 128, format, args);
++	va_end(args);
++
++	DWC_SPINLOCK_IRQSAVE(wq->lock, &flags);
++	wq->pending++;
++	DWC_SPINUNLOCK_IRQRESTORE(wq->lock, flags);
++	DWC_WAITQ_TRIGGER(wq->waitq);
++
++	container = DWC_ALLOC_ATOMIC(sizeof(*container));
++	if (!container) {
++		DWC_ERROR("Cannot allocate memory for container");
++		return;
++	}
++
++	container->name = DWC_STRDUP(name);
++	if (!container->name) {
++		DWC_ERROR("Cannot allocate memory for container->name");
++		DWC_FREE(container);
++		return;
++	}
++
++	container->cb = cb;
++	container->data = data;
++	container->wq = wq;
++	tv.tv_sec = time / 1000;
++	tv.tv_usec = (time - tv.tv_sec * 1000) * 1000;
++	container->hz = tvtohz(&tv);
++	wq->container = container;
++
++	DWC_DEBUG("Queueing work: %s, container=%p", container->name, container);
++	workqueue_enqueue(wq->taskq, &container->task);
++}
++
++int DWC_WORKQ_PENDING(dwc_workq_t *wq)
++{
++	return wq->pending;
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_crypto.c
+@@ -0,0 +1,308 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_crypto.c $
++ * $Revision: #5 $
++ * $Date: 2010/09/28 $
++ * $Change: 1596182 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++
++/** @file
++ * This file contains the WUSB cryptographic routines.
++ */
++
++#ifdef DWC_CRYPTOLIB
++
++#include "dwc_crypto.h"
++#include "usb.h"
++
++#ifdef DEBUG
++static inline void dump_bytes(char *name, uint8_t *bytes, int len)
++{
++	int i;
++	DWC_PRINTF("%s: ", name);
++	for (i=0; i<len; i++) {
++		DWC_PRINTF("%02x ", bytes[i]);
++	}
++	DWC_PRINTF("\n");
++}
++#else
++#define dump_bytes(x...)
++#endif
++
++/* Display a block */
++void show_block(const u8 *blk, const char *prefix, const char *suffix, int a)
++{
++#ifdef DWC_DEBUG_CRYPTO
++	int i, blksize = 16;
++
++	DWC_DEBUG("%s", prefix);
++
++	if (suffix == NULL) {
++		suffix = "\n";
++		blksize = a;
++	}
++
++	for (i = 0; i < blksize; i++)
++		DWC_PRINT("%02x%s", *blk++, ((i & 3) == 3) ? "  " : " ");
++	DWC_PRINT(suffix);
++#endif
++}
++
++/**
++ * Encrypts an array of bytes using the AES encryption engine.
++ * If <code>dst</code> == <code>src</code>, then the bytes will be encrypted
++ * in-place.
++ *
++ * @return  0 on success, negative error code on error.
++ */
++int dwc_wusb_aes_encrypt(u8 *src, u8 *key, u8 *dst)
++{
++	u8 block_t[16];
++	DWC_MEMSET(block_t, 0, 16);
++
++	return DWC_AES_CBC(src, 16, key, 16, block_t, dst);
++}
++
++/**
++ * The CCM-MAC-FUNCTION described in section 6.5 of the WUSB spec.
++ * This function takes a data string and returns the encrypted CBC
++ * Counter-mode MIC.
++ *
++ * @param key     The 128-bit symmetric key.
++ * @param nonce   The CCM nonce.
++ * @param label   The unique 14-byte ASCII text label.
++ * @param bytes   The byte array to be encrypted.
++ * @param len     Length of the byte array.
++ * @param result  Byte array to receive the 8-byte encrypted MIC.
++ */
++void dwc_wusb_cmf(u8 *key, u8 *nonce,
++		  char *label, u8 *bytes, int len, u8 *result)
++{
++	u8 block_m[16];
++	u8 block_x[16];
++	u8 block_t[8];
++	int idx, blkNum;
++	u16 la = (u16)(len + 14);
++
++	/* Set the AES-128 key */
++	//dwc_aes_setkey(tfm, key, 16);
++
++	/* Fill block B0 from flags = 0x59, N, and l(m) = 0 */
++	block_m[0] = 0x59;
++	for (idx = 0; idx < 13; idx++)
++		block_m[idx + 1] = nonce[idx];
++	block_m[14] = 0;
++	block_m[15] = 0;
++
++	/* Produce the CBC IV */
++	dwc_wusb_aes_encrypt(block_m, key, block_x);
++	show_block(block_m, "CBC IV in: ", "\n", 0);
++	show_block(block_x, "CBC IV out:", "\n", 0);
++
++	/* Fill block B1 from l(a) = Blen + 14, and A */
++	block_x[0] ^= (u8)(la >> 8);
++	block_x[1] ^= (u8)la;
++	for (idx = 0; idx < 14; idx++)
++		block_x[idx + 2] ^= label[idx];
++	show_block(block_x, "After xor: ", "b1\n", 16);
++
++	dwc_wusb_aes_encrypt(block_x, key, block_x);
++	show_block(block_x, "After AES: ", "b1\n", 16);
++
++	idx = 0;
++	blkNum = 0;
++
++	/* Fill remaining blocks with B */
++	while (len-- > 0) {
++		block_x[idx] ^= *bytes++;
++		if (++idx >= 16) {
++			idx = 0;
++			show_block(block_x, "After xor: ", "\n", blkNum);
++			dwc_wusb_aes_encrypt(block_x, key, block_x);
++			show_block(block_x, "After AES: ", "\n", blkNum);
++			blkNum++;
++		}
++	}
++
++	/* Handle partial last block */
++	if (idx > 0) {
++		show_block(block_x, "After xor: ", "\n", blkNum);
++		dwc_wusb_aes_encrypt(block_x, key, block_x);
++		show_block(block_x, "After AES: ", "\n", blkNum);
++	}
++
++	/* Save the MIC tag */
++	DWC_MEMCPY(block_t, block_x, 8);
++	show_block(block_t, "MIC tag  : ", NULL, 8);
++
++	/* Fill block A0 from flags = 0x01, N, and counter = 0 */
++	block_m[0] = 0x01;
++	block_m[14] = 0;
++	block_m[15] = 0;
++
++	/* Encrypt the counter */
++	dwc_wusb_aes_encrypt(block_m, key, block_x);
++	show_block(block_x, "CTR[MIC] : ", NULL, 8);
++
++	/* XOR with MIC tag */
++	for (idx = 0; idx < 8; idx++) {
++		block_t[idx] ^= block_x[idx];
++	}
++
++	/* Return result to caller */
++	DWC_MEMCPY(result, block_t, 8);
++	show_block(result, "CCM-MIC  : ", NULL, 8);
++
++}
++
++/**
++ * The PRF function described in section 6.5 of the WUSB spec. This function
++ * concatenates MIC values returned from dwc_cmf() to create a value of
++ * the requested length.
++ *
++ * @param prf_len  Length of the PRF function in bits (64, 128, or 256).
++ * @param key, nonce, label, bytes, len  Same as for dwc_cmf().
++ * @param result   Byte array to receive the result.
++ */
++void dwc_wusb_prf(int prf_len, u8 *key,
++		  u8 *nonce, char *label, u8 *bytes, int len, u8 *result)
++{
++	int i;
++
++	nonce[0] = 0;
++	for (i = 0; i < prf_len >> 6; i++, nonce[0]++) {
++		dwc_wusb_cmf(key, nonce, label, bytes, len, result);
++		result += 8;
++	}
++}
++
++/**
++ * Fills in CCM Nonce per the WUSB spec.
++ *
++ * @param[in] haddr Host address.
++ * @param[in] daddr Device address.
++ * @param[in] tkid Session Key(PTK) identifier.
++ * @param[out] nonce Pointer to where the CCM Nonce output is to be written.
++ */
++void dwc_wusb_fill_ccm_nonce(uint16_t haddr, uint16_t daddr, uint8_t *tkid,
++			     uint8_t *nonce)
++{
++
++	DWC_DEBUG("%s %x %x\n", __func__, daddr, haddr);
++
++	DWC_MEMSET(&nonce[0], 0, 16);
++
++	DWC_MEMCPY(&nonce[6], tkid, 3);
++	nonce[9] = daddr & 0xFF;
++	nonce[10] = (daddr >> 8) & 0xFF;
++	nonce[11] = haddr & 0xFF;
++	nonce[12] = (haddr >> 8) & 0xFF;
++
++	dump_bytes("CCM nonce", nonce, 16);
++}
++
++/**
++ * Generates a 16-byte cryptographic-grade random number for the Host/Device
++ * Nonce.
++ */
++void dwc_wusb_gen_nonce(uint16_t addr, uint8_t *nonce)
++{
++	uint8_t inonce[16];
++	uint32_t temp[4];
++
++	/* Fill in the Nonce */
++	DWC_MEMSET(&inonce[0], 0, sizeof(inonce));
++	inonce[9] = addr & 0xFF;
++	inonce[10] = (addr >> 8) & 0xFF;
++	inonce[11] = inonce[9];
++	inonce[12] = inonce[10];
++
++	/* Collect "randomness samples" */
++	DWC_RANDOM_BYTES((uint8_t *)temp, 16);
++
++	dwc_wusb_prf_128((uint8_t *)temp, nonce,
++			 "Random Numbers", (uint8_t *)temp, sizeof(temp),
++			 nonce);
++}
++
++/**
++ * Generates the Session Key (PTK) and Key Confirmation Key (KCK) per the
++ * WUSB spec.
++ *
++ * @param[in] ccm_nonce Pointer to CCM Nonce.
++ * @param[in] mk Master Key to derive the session from
++ * @param[in] hnonce Pointer to Host Nonce.
++ * @param[in] dnonce Pointer to Device Nonce.
++ * @param[out] kck Pointer to where the KCK output is to be written.
++ * @param[out] ptk Pointer to where the PTK output is to be written.
++ */
++void dwc_wusb_gen_key(uint8_t *ccm_nonce, uint8_t *mk, uint8_t *hnonce,
++		      uint8_t *dnonce, uint8_t *kck, uint8_t *ptk)
++{
++	uint8_t idata[32];
++	uint8_t odata[32];
++
++	dump_bytes("ck", mk, 16);
++	dump_bytes("hnonce", hnonce, 16);
++	dump_bytes("dnonce", dnonce, 16);
++
++	/* The data is the HNonce and DNonce concatenated */
++	DWC_MEMCPY(&idata[0], hnonce, 16);
++	DWC_MEMCPY(&idata[16], dnonce, 16);
++
++	dwc_wusb_prf_256(mk, ccm_nonce, "Pair-wise keys", idata, 32, odata);
++
++	/* Low 16 bytes of the result is the KCK, high 16 is the PTK */
++	DWC_MEMCPY(kck, &odata[0], 16);
++	DWC_MEMCPY(ptk, &odata[16], 16);
++
++	dump_bytes("kck", kck, 16);
++	dump_bytes("ptk", ptk, 16);
++}
++
++/**
++ * Generates the Message Integrity Code over the Handshake data per the
++ * WUSB spec.
++ *
++ * @param ccm_nonce Pointer to CCM Nonce.
++ * @param kck   Pointer to Key Confirmation Key.
++ * @param data  Pointer to Handshake data to be checked.
++ * @param mic   Pointer to where the MIC output is to be written.
++ */
++void dwc_wusb_gen_mic(uint8_t *ccm_nonce, uint8_t *kck,
++		      uint8_t *data, uint8_t *mic)
++{
++
++	dwc_wusb_prf_64(kck, ccm_nonce, "out-of-bandMIC",
++			data, WUSB_HANDSHAKE_LEN_FOR_MIC, mic);
++}
++
++#endif	/* DWC_CRYPTOLIB */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_crypto.h
+@@ -0,0 +1,111 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_crypto.h $
++ * $Revision: #3 $
++ * $Date: 2010/09/28 $
++ * $Change: 1596182 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++
++#ifndef _DWC_CRYPTO_H_
++#define _DWC_CRYPTO_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/** @file
++ *
++ * This file contains declarations for the WUSB Cryptographic routines as
++ * defined in the WUSB spec.  They are only to be used internally by the DWC UWB
++ * modules.
++ */
++
++#include "dwc_os.h"
++
++int dwc_wusb_aes_encrypt(u8 *src, u8 *key, u8 *dst);
++
++void dwc_wusb_cmf(u8 *key, u8 *nonce,
++		  char *label, u8 *bytes, int len, u8 *result);
++void dwc_wusb_prf(int prf_len, u8 *key,
++		  u8 *nonce, char *label, u8 *bytes, int len, u8 *result);
++
++/**
++ * The PRF-64 function described in section 6.5 of the WUSB spec.
++ *
++ * @param key, nonce, label, bytes, len, result  Same as for dwc_prf().
++ */
++static inline void dwc_wusb_prf_64(u8 *key, u8 *nonce,
++				   char *label, u8 *bytes, int len, u8 *result)
++{
++	dwc_wusb_prf(64, key, nonce, label, bytes, len, result);
++}
++
++/**
++ * The PRF-128 function described in section 6.5 of the WUSB spec.
++ *
++ * @param key, nonce, label, bytes, len, result  Same as for dwc_prf().
++ */
++static inline void dwc_wusb_prf_128(u8 *key, u8 *nonce,
++				    char *label, u8 *bytes, int len, u8 *result)
++{
++	dwc_wusb_prf(128, key, nonce, label, bytes, len, result);
++}
++
++/**
++ * The PRF-256 function described in section 6.5 of the WUSB spec.
++ *
++ * @param key, nonce, label, bytes, len, result  Same as for dwc_prf().
++ */
++static inline void dwc_wusb_prf_256(u8 *key, u8 *nonce,
++				    char *label, u8 *bytes, int len, u8 *result)
++{
++	dwc_wusb_prf(256, key, nonce, label, bytes, len, result);
++}
++
++
++void dwc_wusb_fill_ccm_nonce(uint16_t haddr, uint16_t daddr, uint8_t *tkid,
++			       uint8_t *nonce);
++void dwc_wusb_gen_nonce(uint16_t addr,
++			  uint8_t *nonce);
++
++void dwc_wusb_gen_key(uint8_t *ccm_nonce, uint8_t *mk,
++			uint8_t *hnonce, uint8_t *dnonce,
++			uint8_t *kck, uint8_t *ptk);
++
++
++void dwc_wusb_gen_mic(uint8_t *ccm_nonce, uint8_t
++			*kck, uint8_t *data, uint8_t *mic);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _DWC_CRYPTO_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_dh.c
+@@ -0,0 +1,291 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_dh.c $
++ * $Revision: #3 $
++ * $Date: 2010/09/28 $
++ * $Change: 1596182 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++#ifdef DWC_CRYPTOLIB
++
++#ifndef CONFIG_MACH_IPMATE
++
++#include "dwc_dh.h"
++#include "dwc_modpow.h"
++
++#ifdef DEBUG
++/* This function prints out a buffer in the format described in the Association
++ * Model specification. */
++static void dh_dump(char *str, void *_num, int len)
++{
++	uint8_t *num = _num;
++	int i;
++	DWC_PRINTF("%s\n", str);
++	for (i = 0; i < len; i ++) {
++		DWC_PRINTF("%02x", num[i]);
++		if (((i + 1) % 2) == 0) DWC_PRINTF(" ");
++		if (((i + 1) % 26) == 0) DWC_PRINTF("\n");
++	}
++
++	DWC_PRINTF("\n");
++}
++#else
++#define dh_dump(_x...) do {; } while(0)
++#endif
++
++/* Constant g value */
++static __u32 dh_g[] = {
++	0x02000000,
++};
++
++/* Constant p value */
++static __u32 dh_p[] = {
++	0xFFFFFFFF, 0xFFFFFFFF, 0xA2DA0FC9, 0x34C26821, 0x8B62C6C4, 0xD11CDC80, 0x084E0229, 0x74CC678A,
++	0xA6BE0B02, 0x229B133B, 0x79084A51, 0xDD04348E, 0xB31995EF, 0x1B433ACD, 0x6D0A2B30, 0x37145FF2,
++	0x6D35E14F, 0x45C2516D, 0x76B585E4, 0xC67E5E62, 0xE9424CF4, 0x6BED37A6, 0xB65CFF0B, 0xEDB706F4,
++	0xFB6B38EE, 0xA59F895A, 0x11249FAE, 0xE61F4B7C, 0x51662849, 0x3D5BE4EC, 0xB87C00C2, 0x05BF63A1,
++	0x3648DA98, 0x9AD3551C, 0xA83F1669, 0x5FCF24FD, 0x235D6583, 0x96ADA3DC, 0x56F3621C, 0xBB528520,
++	0x0729D59E, 0x6D969670, 0x4E350C67, 0x0498BC4A, 0x086C74F1, 0x7C2118CA, 0x465E9032, 0x3BCE362E,
++	0x2C779EE3, 0x03860E18, 0xA283279B, 0x8FA207EC, 0xF05DC5B5, 0xC9524C6F, 0xF6CB2BDE, 0x18175895,
++	0x7C499539, 0xE56A95EA, 0x1826D215, 0x1005FA98, 0x5A8E7215, 0x2DC4AA8A, 0x0D1733AD, 0x337A5004,
++	0xAB2155A8, 0x64BA1CDF, 0x0485FBEC, 0x0AEFDB58, 0x5771EA8A, 0x7D0C065D, 0x850F97B3, 0xC7E4E1A6,
++	0x8CAEF5AB, 0xD73309DB, 0xE0948C1E, 0x9D61254A, 0x26D2E3CE, 0x6BEED21A, 0x06FA2FF1, 0x64088AD9,
++	0x730276D8, 0x646AC83E, 0x182B1F52, 0x0C207B17, 0x5717E1BB, 0x6C5D617A, 0xC0880977, 0xE246D9BA,
++	0xA04FE208, 0x31ABE574, 0xFC5BDB43, 0x8E10FDE0, 0x20D1824B, 0xCAD23AA9, 0xFFFFFFFF, 0xFFFFFFFF,
++};
++
++static void dh_swap_bytes(void *_in, void *_out, uint32_t len)
++{
++	uint8_t *in = _in;
++	uint8_t *out = _out;
++	int i;
++	for (i=0; i<len; i++) {
++		out[i] = in[len-1-i];
++	}
++}
++
++/* Computes the modular exponentiation (num^exp % mod).  num, exp, and mod are
++ * big endian numbers of size len, in bytes.  Each len value must be a multiple
++ * of 4. */
++int dwc_dh_modpow(void *mem_ctx, void *num, uint32_t num_len,
++		  void *exp, uint32_t exp_len,
++		  void *mod, uint32_t mod_len,
++		  void *out)
++{
++	/* modpow() takes little endian numbers.  AM uses big-endian.  This
++	 * function swaps bytes of numbers before passing onto modpow. */
++
++	int retval = 0;
++	uint32_t *result;
++
++	uint32_t *bignum_num = dwc_alloc(mem_ctx, num_len + 4);
++	uint32_t *bignum_exp = dwc_alloc(mem_ctx, exp_len + 4);
++	uint32_t *bignum_mod = dwc_alloc(mem_ctx, mod_len + 4);
++
++	dh_swap_bytes(num, &bignum_num[1], num_len);
++	bignum_num[0] = num_len / 4;
++
++	dh_swap_bytes(exp, &bignum_exp[1], exp_len);
++	bignum_exp[0] = exp_len / 4;
++
++	dh_swap_bytes(mod, &bignum_mod[1], mod_len);
++	bignum_mod[0] = mod_len / 4;
++
++	result = dwc_modpow(mem_ctx, bignum_num, bignum_exp, bignum_mod);
++	if (!result) {
++		retval = -1;
++		goto dh_modpow_nomem;
++	}
++
++	dh_swap_bytes(&result[1], out, result[0] * 4);
++	dwc_free(mem_ctx, result);
++
++ dh_modpow_nomem:
++	dwc_free(mem_ctx, bignum_num);
++	dwc_free(mem_ctx, bignum_exp);
++	dwc_free(mem_ctx, bignum_mod);
++	return retval;
++}
++
++
++int dwc_dh_pk(void *mem_ctx, uint8_t nd, uint8_t *exp, uint8_t *pk, uint8_t *hash)
++{
++	int retval;
++	uint8_t m3[385];
++
++#ifndef DH_TEST_VECTORS
++	DWC_RANDOM_BYTES(exp, 32);
++#endif
++
++	/* Compute the pkd */
++	if ((retval = dwc_dh_modpow(mem_ctx, dh_g, 4,
++				    exp, 32,
++				    dh_p, 384, pk))) {
++		return retval;
++	}
++
++	m3[384] = nd;
++	DWC_MEMCPY(&m3[0], pk, 384);
++	DWC_SHA256(m3, 385, hash);
++
++	dh_dump("PK", pk, 384);
++	dh_dump("SHA-256(M3)", hash, 32);
++	return 0;
++}
++
++int dwc_dh_derive_keys(void *mem_ctx, uint8_t nd, uint8_t *pkh, uint8_t *pkd,
++		       uint8_t *exp, int is_host,
++		       char *dd, uint8_t *ck, uint8_t *kdk)
++{
++	int retval;
++	uint8_t mv[784];
++	uint8_t sha_result[32];
++	uint8_t dhkey[384];
++	uint8_t shared_secret[384];
++	char *message;
++	uint32_t vd;
++
++	uint8_t *pk;
++
++	if (is_host) {
++		pk = pkd;
++	}
++	else {
++		pk = pkh;
++	}
++
++	if ((retval = dwc_dh_modpow(mem_ctx, pk, 384,
++				    exp, 32,
++				    dh_p, 384, shared_secret))) {
++		return retval;
++	}
++	dh_dump("Shared Secret", shared_secret, 384);
++
++	DWC_SHA256(shared_secret, 384, dhkey);
++	dh_dump("DHKEY", dhkey, 384);
++
++	DWC_MEMCPY(&mv[0], pkd, 384);
++	DWC_MEMCPY(&mv[384], pkh, 384);
++	DWC_MEMCPY(&mv[768], "displayed digest", 16);
++	dh_dump("MV", mv, 784);
++
++	DWC_SHA256(mv, 784, sha_result);
++	dh_dump("SHA-256(MV)", sha_result, 32);
++	dh_dump("First 32-bits of SHA-256(MV)", sha_result, 4);
++
++	dh_swap_bytes(sha_result, &vd, 4);
++#ifdef DEBUG
++	DWC_PRINTF("Vd (decimal) = %d\n", vd);
++#endif
++
++	switch (nd) {
++	case 2:
++		vd = vd % 100;
++		DWC_SPRINTF(dd, "%02d", vd);
++		break;
++	case 3:
++		vd = vd % 1000;
++		DWC_SPRINTF(dd, "%03d", vd);
++		break;
++	case 4:
++		vd = vd % 10000;
++		DWC_SPRINTF(dd, "%04d", vd);
++		break;
++	}
++#ifdef DEBUG
++	DWC_PRINTF("Display Digits: %s\n", dd);
++#endif
++
++	message = "connection key";
++	DWC_HMAC_SHA256(message, DWC_STRLEN(message), dhkey, 32, sha_result);
++	dh_dump("HMAC(SHA-256, DHKey, connection key)", sha_result, 32);
++	DWC_MEMCPY(ck, sha_result, 16);
++
++	message = "key derivation key";
++	DWC_HMAC_SHA256(message, DWC_STRLEN(message), dhkey, 32, sha_result);
++	dh_dump("HMAC(SHA-256, DHKey, key derivation key)", sha_result, 32);
++	DWC_MEMCPY(kdk, sha_result, 32);
++
++	return 0;
++}
++
++
++#ifdef DH_TEST_VECTORS
++
++static __u8 dh_a[] = {
++	0x44, 0x00, 0x51, 0xd6,
++	0xf0, 0xb5, 0x5e, 0xa9,
++	0x67, 0xab, 0x31, 0xc6,
++	0x8a, 0x8b, 0x5e, 0x37,
++	0xd9, 0x10, 0xda, 0xe0,
++	0xe2, 0xd4, 0x59, 0xa4,
++	0x86, 0x45, 0x9c, 0xaa,
++	0xdf, 0x36, 0x75, 0x16,
++};
++
++static __u8 dh_b[] = {
++	0x5d, 0xae, 0xc7, 0x86,
++	0x79, 0x80, 0xa3, 0x24,
++	0x8c, 0xe3, 0x57, 0x8f,
++	0xc7, 0x5f, 0x1b, 0x0f,
++	0x2d, 0xf8, 0x9d, 0x30,
++	0x6f, 0xa4, 0x52, 0xcd,
++	0xe0, 0x7a, 0x04, 0x8a,
++	0xde, 0xd9, 0x26, 0x56,
++};
++
++void dwc_run_dh_test_vectors(void *mem_ctx)
++{
++	uint8_t pkd[384];
++	uint8_t pkh[384];
++	uint8_t hashd[32];
++	uint8_t hashh[32];
++	uint8_t ck[16];
++	uint8_t kdk[32];
++	char dd[5];
++
++	DWC_PRINTF("\n\n\nDH_TEST_VECTORS\n\n");
++
++	/* compute the PKd and SHA-256(PKd || Nd) */
++	DWC_PRINTF("Computing PKd\n");
++	dwc_dh_pk(mem_ctx, 2, dh_a, pkd, hashd);
++
++	/* compute the PKd and SHA-256(PKh || Nd) */
++	DWC_PRINTF("Computing PKh\n");
++	dwc_dh_pk(mem_ctx, 2, dh_b, pkh, hashh);
++
++	/* compute the dhkey */
++	dwc_dh_derive_keys(mem_ctx, 2, pkh, pkd, dh_a, 0, dd, ck, kdk);
++}
++#endif /* DH_TEST_VECTORS */
++
++#endif /* !CONFIG_MACH_IPMATE */
++
++#endif /* DWC_CRYPTOLIB */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_dh.h
+@@ -0,0 +1,106 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_dh.h $
++ * $Revision: #4 $
++ * $Date: 2010/09/28 $
++ * $Change: 1596182 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++#ifndef _DWC_DH_H_
++#define _DWC_DH_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#include "dwc_os.h"
++
++/** @file
++ *
++ * This file defines the common functions on device and host for performing
++ * numeric association as defined in the WUSB spec.  They are only to be
++ * used internally by the DWC UWB modules. */
++
++extern int dwc_dh_sha256(uint8_t *message, uint32_t len, uint8_t *out);
++extern int dwc_dh_hmac_sha256(uint8_t *message, uint32_t messagelen,
++			      uint8_t *key, uint32_t keylen,
++			      uint8_t *out);
++extern int dwc_dh_modpow(void *mem_ctx, void *num, uint32_t num_len,
++			 void *exp, uint32_t exp_len,
++			 void *mod, uint32_t mod_len,
++			 void *out);
++
++/** Computes PKD or PKH, and SHA-256(PKd || Nd)
++ *
++ * PK = g^exp mod p.
++ *
++ * Input:
++ * Nd = Number of digits on the device.
++ *
++ * Output:
++ * exp = A 32-byte buffer to be filled with a randomly generated number.
++ *       used as either A or B.
++ * pk = A 384-byte buffer to be filled with the PKH or PKD.
++ * hash = A 32-byte buffer to be filled with SHA-256(PK || ND).
++ */
++extern int dwc_dh_pk(void *mem_ctx, uint8_t nd, uint8_t *exp, uint8_t *pkd, uint8_t *hash);
++
++/** Computes the DHKEY, and VD.
++ *
++ * If called from host, then it will comput DHKEY=PKD^exp % p.
++ * If called from device, then it will comput DHKEY=PKH^exp % p.
++ *
++ * Input:
++ * pkd = The PKD value.
++ * pkh = The PKH value.
++ * exp = The A value (if device) or B value (if host) generated in dwc_wudev_dh_pk.
++ * is_host = Set to non zero if a WUSB host is calling this function.
++ *
++ * Output:
++
++ * dd = A pointer to an buffer to be set to the displayed digits string to be shown
++ *      to the user.  This buffer should be at 5 bytes long to hold 4 digits plus a
++ *      null termination character.  This buffer can be used directly for display.
++ * ck = A 16-byte buffer to be filled with the CK.
++ * kdk = A 32-byte buffer to be filled with the KDK.
++ */
++extern int dwc_dh_derive_keys(void *mem_ctx, uint8_t nd, uint8_t *pkh, uint8_t *pkd,
++			      uint8_t *exp, int is_host,
++			      char *dd, uint8_t *ck, uint8_t *kdk);
++
++#ifdef DH_TEST_VECTORS
++extern void dwc_run_dh_test_vectors(void);
++#endif
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _DWC_DH_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_list.h
+@@ -0,0 +1,594 @@
++/*	$OpenBSD: queue.h,v 1.26 2004/05/04 16:59:32 grange Exp $	*/
++/*	$NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $	*/
++
++/*
++ * Copyright (c) 1991, 1993
++ *	The Regents of the University of California.  All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. Neither the name of the University nor the names of its contributors
++ *    may be used to endorse or promote products derived from this software
++ *    without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ *
++ *	@(#)queue.h	8.5 (Berkeley) 8/20/94
++ */
++
++#ifndef _DWC_LIST_H_
++#define _DWC_LIST_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/** @file
++ *
++ * This file defines linked list operations.  It is derived from BSD with
++ * only the MACRO names being prefixed with DWC_.  This is because a few of
++ * these names conflict with those on Linux.  For documentation on use, see the
++ * inline comments in the source code.  The original license for this source
++ * code applies and is preserved in the dwc_list.h source file.
++ */
++
++/*
++ * This file defines five types of data structures: singly-linked lists,
++ * lists, simple queues, tail queues, and circular queues.
++ *
++ *
++ * A singly-linked list is headed by a single forward pointer. The elements
++ * are singly linked for minimum space and pointer manipulation overhead at
++ * the expense of O(n) removal for arbitrary elements. New elements can be
++ * added to the list after an existing element or at the head of the list.
++ * Elements being removed from the head of the list should use the explicit
++ * macro for this purpose for optimum efficiency. A singly-linked list may
++ * only be traversed in the forward direction.  Singly-linked lists are ideal
++ * for applications with large datasets and few or no removals or for
++ * implementing a LIFO queue.
++ *
++ * A list is headed by a single forward pointer (or an array of forward
++ * pointers for a hash table header). The elements are doubly linked
++ * so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before
++ * or after an existing element or at the head of the list. A list
++ * may only be traversed in the forward direction.
++ *
++ * A simple queue is headed by a pair of pointers, one the head of the
++ * list and the other to the tail of the list. The elements are singly
++ * linked to save space, so elements can only be removed from the
++ * head of the list. New elements can be added to the list before or after
++ * an existing element, at the head of the list, or at the end of the
++ * list. A simple queue may only be traversed in the forward direction.
++ *
++ * A tail queue is headed by a pair of pointers, one to the head of the
++ * list and the other to the tail of the list. The elements are doubly
++ * linked so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before or
++ * after an existing element, at the head of the list, or at the end of
++ * the list. A tail queue may be traversed in either direction.
++ *
++ * A circle queue is headed by a pair of pointers, one to the head of the
++ * list and the other to the tail of the list. The elements are doubly
++ * linked so that an arbitrary element can be removed without a need to
++ * traverse the list. New elements can be added to the list before or after
++ * an existing element, at the head of the list, or at the end of the list.
++ * A circle queue may be traversed in either direction, but has a more
++ * complex end of list detection.
++ *
++ * For details on the use of these macros, see the queue(3) manual page.
++ */
++
++/*
++ * Double-linked List.
++ */
++
++typedef struct dwc_list_link {
++	struct dwc_list_link *next;
++	struct dwc_list_link *prev;
++} dwc_list_link_t;
++
++#define DWC_LIST_INIT(link) do {	\
++	(link)->next = (link);		\
++	(link)->prev = (link);		\
++} while (0)
++
++#define DWC_LIST_FIRST(link)	((link)->next)
++#define DWC_LIST_LAST(link)	((link)->prev)
++#define DWC_LIST_END(link)	(link)
++#define DWC_LIST_NEXT(link)	((link)->next)
++#define DWC_LIST_PREV(link)	((link)->prev)
++#define DWC_LIST_EMPTY(link)	\
++	(DWC_LIST_FIRST(link) == DWC_LIST_END(link))
++#define DWC_LIST_ENTRY(link, type, field)			\
++	(type *)((uint8_t *)(link) - (size_t)(&((type *)0)->field))
++
++#if 0
++#define DWC_LIST_INSERT_HEAD(list, link) do {			\
++	(link)->next = (list)->next;				\
++	(link)->prev = (list);					\
++	(list)->next->prev = (link);				\
++	(list)->next = (link);					\
++} while (0)
++
++#define DWC_LIST_INSERT_TAIL(list, link) do {			\
++	(link)->next = (list);					\
++	(link)->prev = (list)->prev;				\
++	(list)->prev->next = (link);				\
++	(list)->prev = (link);					\
++} while (0)
++#else
++#define DWC_LIST_INSERT_HEAD(list, link) do {			\
++	dwc_list_link_t *__next__ = (list)->next;		\
++	__next__->prev = (link);				\
++	(link)->next = __next__;				\
++	(link)->prev = (list);					\
++	(list)->next = (link);					\
++} while (0)
++
++#define DWC_LIST_INSERT_TAIL(list, link) do {			\
++	dwc_list_link_t *__prev__ = (list)->prev;		\
++	(list)->prev = (link);					\
++	(link)->next = (list);					\
++	(link)->prev = __prev__;				\
++	__prev__->next = (link);				\
++} while (0)
++#endif
++
++#if 0
++static inline void __list_add(struct list_head *new,
++                              struct list_head *prev,
++                              struct list_head *next)
++{
++        next->prev = new;
++        new->next = next;
++        new->prev = prev;
++        prev->next = new;
++}
++
++static inline void list_add(struct list_head *new, struct list_head *head)
++{
++        __list_add(new, head, head->next);
++}
++
++static inline void list_add_tail(struct list_head *new, struct list_head *head)
++{
++        __list_add(new, head->prev, head);
++}
++
++static inline void __list_del(struct list_head * prev, struct list_head * next)
++{
++        next->prev = prev;
++        prev->next = next;
++}
++
++static inline void list_del(struct list_head *entry)
++{
++        __list_del(entry->prev, entry->next);
++        entry->next = LIST_POISON1;
++        entry->prev = LIST_POISON2;
++}
++#endif
++
++#define DWC_LIST_REMOVE(link) do {				\
++	(link)->next->prev = (link)->prev;			\
++	(link)->prev->next = (link)->next;			\
++} while (0)
++
++#define DWC_LIST_REMOVE_INIT(link) do {				\
++	DWC_LIST_REMOVE(link);					\
++	DWC_LIST_INIT(link);					\
++} while (0)
++
++#define DWC_LIST_MOVE_HEAD(list, link) do {			\
++	DWC_LIST_REMOVE(link);					\
++	DWC_LIST_INSERT_HEAD(list, link);			\
++} while (0)
++
++#define DWC_LIST_MOVE_TAIL(list, link) do {			\
++	DWC_LIST_REMOVE(link);					\
++	DWC_LIST_INSERT_TAIL(list, link);			\
++} while (0)
++
++#define DWC_LIST_FOREACH(var, list)				\
++	for((var) = DWC_LIST_FIRST(list);			\
++	    (var) != DWC_LIST_END(list);			\
++	    (var) = DWC_LIST_NEXT(var))
++
++#define DWC_LIST_FOREACH_SAFE(var, var2, list)			\
++	for((var) = DWC_LIST_FIRST(list), (var2) = DWC_LIST_NEXT(var);	\
++	    (var) != DWC_LIST_END(list);			\
++	    (var) = (var2), (var2) = DWC_LIST_NEXT(var2))
++
++#define DWC_LIST_FOREACH_REVERSE(var, list)			\
++	for((var) = DWC_LIST_LAST(list);			\
++	    (var) != DWC_LIST_END(list);			\
++	    (var) = DWC_LIST_PREV(var))
++
++/*
++ * Singly-linked List definitions.
++ */
++#define DWC_SLIST_HEAD(name, type)					\
++struct name {								\
++	struct type *slh_first;	/* first element */			\
++}
++
++#define DWC_SLIST_HEAD_INITIALIZER(head)				\
++	{ NULL }
++
++#define DWC_SLIST_ENTRY(type)						\
++struct {								\
++	struct type *sle_next;	/* next element */			\
++}
++
++/*
++ * Singly-linked List access methods.
++ */
++#define DWC_SLIST_FIRST(head)	((head)->slh_first)
++#define DWC_SLIST_END(head)		NULL
++#define DWC_SLIST_EMPTY(head)	(SLIST_FIRST(head) == SLIST_END(head))
++#define DWC_SLIST_NEXT(elm, field)	((elm)->field.sle_next)
++
++#define DWC_SLIST_FOREACH(var, head, field)				\
++	for((var) = SLIST_FIRST(head);					\
++	    (var) != SLIST_END(head);					\
++	    (var) = SLIST_NEXT(var, field))
++
++#define DWC_SLIST_FOREACH_PREVPTR(var, varp, head, field)		\
++	for((varp) = &SLIST_FIRST((head));				\
++	    ((var) = *(varp)) != SLIST_END(head);			\
++	    (varp) = &SLIST_NEXT((var), field))
++
++/*
++ * Singly-linked List functions.
++ */
++#define DWC_SLIST_INIT(head) {						\
++	SLIST_FIRST(head) = SLIST_END(head);				\
++}
++
++#define DWC_SLIST_INSERT_AFTER(slistelm, elm, field) do {		\
++	(elm)->field.sle_next = (slistelm)->field.sle_next;		\
++	(slistelm)->field.sle_next = (elm);				\
++} while (0)
++
++#define DWC_SLIST_INSERT_HEAD(head, elm, field) do {			\
++	(elm)->field.sle_next = (head)->slh_first;			\
++	(head)->slh_first = (elm);					\
++} while (0)
++
++#define DWC_SLIST_REMOVE_NEXT(head, elm, field) do {			\
++	(elm)->field.sle_next = (elm)->field.sle_next->field.sle_next;	\
++} while (0)
++
++#define DWC_SLIST_REMOVE_HEAD(head, field) do {				\
++	(head)->slh_first = (head)->slh_first->field.sle_next;		\
++} while (0)
++
++#define DWC_SLIST_REMOVE(head, elm, type, field) do {			\
++	if ((head)->slh_first == (elm)) {				\
++		SLIST_REMOVE_HEAD((head), field);			\
++	}								\
++	else {								\
++		struct type *curelm = (head)->slh_first;		\
++		while( curelm->field.sle_next != (elm) )		\
++			curelm = curelm->field.sle_next;		\
++		curelm->field.sle_next =				\
++		    curelm->field.sle_next->field.sle_next;		\
++	}								\
++} while (0)
++
++/*
++ * Simple queue definitions.
++ */
++#define DWC_SIMPLEQ_HEAD(name, type)					\
++struct name {								\
++	struct type *sqh_first;	/* first element */			\
++	struct type **sqh_last;	/* addr of last next element */		\
++}
++
++#define DWC_SIMPLEQ_HEAD_INITIALIZER(head)				\
++	{ NULL, &(head).sqh_first }
++
++#define DWC_SIMPLEQ_ENTRY(type)						\
++struct {								\
++	struct type *sqe_next;	/* next element */			\
++}
++
++/*
++ * Simple queue access methods.
++ */
++#define DWC_SIMPLEQ_FIRST(head)	    ((head)->sqh_first)
++#define DWC_SIMPLEQ_END(head)	    NULL
++#define DWC_SIMPLEQ_EMPTY(head)	    (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
++#define DWC_SIMPLEQ_NEXT(elm, field)    ((elm)->field.sqe_next)
++
++#define DWC_SIMPLEQ_FOREACH(var, head, field)				\
++	for((var) = SIMPLEQ_FIRST(head);				\
++	    (var) != SIMPLEQ_END(head);					\
++	    (var) = SIMPLEQ_NEXT(var, field))
++
++/*
++ * Simple queue functions.
++ */
++#define DWC_SIMPLEQ_INIT(head) do {					\
++	(head)->sqh_first = NULL;					\
++	(head)->sqh_last = &(head)->sqh_first;				\
++} while (0)
++
++#define DWC_SIMPLEQ_INSERT_HEAD(head, elm, field) do {			\
++	if (((elm)->field.sqe_next = (head)->sqh_first) == NULL)	\
++		(head)->sqh_last = &(elm)->field.sqe_next;		\
++	(head)->sqh_first = (elm);					\
++} while (0)
++
++#define DWC_SIMPLEQ_INSERT_TAIL(head, elm, field) do {			\
++	(elm)->field.sqe_next = NULL;					\
++	*(head)->sqh_last = (elm);					\
++	(head)->sqh_last = &(elm)->field.sqe_next;			\
++} while (0)
++
++#define DWC_SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do {	\
++	if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
++		(head)->sqh_last = &(elm)->field.sqe_next;		\
++	(listelm)->field.sqe_next = (elm);				\
++} while (0)
++
++#define DWC_SIMPLEQ_REMOVE_HEAD(head, field) do {			\
++	if (((head)->sqh_first = (head)->sqh_first->field.sqe_next) == NULL) \
++		(head)->sqh_last = &(head)->sqh_first;			\
++} while (0)
++
++/*
++ * Tail queue definitions.
++ */
++#define DWC_TAILQ_HEAD(name, type)					\
++struct name {								\
++	struct type *tqh_first;	/* first element */			\
++	struct type **tqh_last;	/* addr of last next element */		\
++}
++
++#define DWC_TAILQ_HEAD_INITIALIZER(head)				\
++	{ NULL, &(head).tqh_first }
++
++#define DWC_TAILQ_ENTRY(type)						\
++struct {								\
++	struct type *tqe_next;	/* next element */			\
++	struct type **tqe_prev;	/* address of previous next element */	\
++}
++
++/*
++ * tail queue access methods
++ */
++#define DWC_TAILQ_FIRST(head)		((head)->tqh_first)
++#define DWC_TAILQ_END(head)		NULL
++#define DWC_TAILQ_NEXT(elm, field)	((elm)->field.tqe_next)
++#define DWC_TAILQ_LAST(head, headname)					\
++	(*(((struct headname *)((head)->tqh_last))->tqh_last))
++/* XXX */
++#define DWC_TAILQ_PREV(elm, headname, field)				\
++	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
++#define DWC_TAILQ_EMPTY(head)						\
++	(DWC_TAILQ_FIRST(head) == DWC_TAILQ_END(head))
++
++#define DWC_TAILQ_FOREACH(var, head, field)				\
++	for ((var) = DWC_TAILQ_FIRST(head);				\
++	    (var) != DWC_TAILQ_END(head);				\
++	    (var) = DWC_TAILQ_NEXT(var, field))
++
++#define DWC_TAILQ_FOREACH_REVERSE(var, head, headname, field)		\
++	for ((var) = DWC_TAILQ_LAST(head, headname);			\
++	    (var) != DWC_TAILQ_END(head);				\
++	    (var) = DWC_TAILQ_PREV(var, headname, field))
++
++/*
++ * Tail queue functions.
++ */
++#define DWC_TAILQ_INIT(head) do {					\
++	(head)->tqh_first = NULL;					\
++	(head)->tqh_last = &(head)->tqh_first;				\
++} while (0)
++
++#define DWC_TAILQ_INSERT_HEAD(head, elm, field) do {			\
++	if (((elm)->field.tqe_next = (head)->tqh_first) != NULL)	\
++		(head)->tqh_first->field.tqe_prev =			\
++		    &(elm)->field.tqe_next;				\
++	else								\
++		(head)->tqh_last = &(elm)->field.tqe_next;		\
++	(head)->tqh_first = (elm);					\
++	(elm)->field.tqe_prev = &(head)->tqh_first;			\
++} while (0)
++
++#define DWC_TAILQ_INSERT_TAIL(head, elm, field) do {			\
++	(elm)->field.tqe_next = NULL;					\
++	(elm)->field.tqe_prev = (head)->tqh_last;			\
++	*(head)->tqh_last = (elm);					\
++	(head)->tqh_last = &(elm)->field.tqe_next;			\
++} while (0)
++
++#define DWC_TAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
++	if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
++		(elm)->field.tqe_next->field.tqe_prev =			\
++		    &(elm)->field.tqe_next;				\
++	else								\
++		(head)->tqh_last = &(elm)->field.tqe_next;		\
++	(listelm)->field.tqe_next = (elm);				\
++	(elm)->field.tqe_prev = &(listelm)->field.tqe_next;		\
++} while (0)
++
++#define DWC_TAILQ_INSERT_BEFORE(listelm, elm, field) do {		\
++	(elm)->field.tqe_prev = (listelm)->field.tqe_prev;		\
++	(elm)->field.tqe_next = (listelm);				\
++	*(listelm)->field.tqe_prev = (elm);				\
++	(listelm)->field.tqe_prev = &(elm)->field.tqe_next;		\
++} while (0)
++
++#define DWC_TAILQ_REMOVE(head, elm, field) do {				\
++	if (((elm)->field.tqe_next) != NULL)				\
++		(elm)->field.tqe_next->field.tqe_prev =			\
++		    (elm)->field.tqe_prev;				\
++	else								\
++		(head)->tqh_last = (elm)->field.tqe_prev;		\
++	*(elm)->field.tqe_prev = (elm)->field.tqe_next;			\
++} while (0)
++
++#define DWC_TAILQ_REPLACE(head, elm, elm2, field) do {			\
++	if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL)	\
++		(elm2)->field.tqe_next->field.tqe_prev =		\
++		    &(elm2)->field.tqe_next;				\
++	else								\
++		(head)->tqh_last = &(elm2)->field.tqe_next;		\
++	(elm2)->field.tqe_prev = (elm)->field.tqe_prev;			\
++	*(elm2)->field.tqe_prev = (elm2);				\
++} while (0)
++
++/*
++ * Circular queue definitions.
++ */
++#define DWC_CIRCLEQ_HEAD(name, type)					\
++struct name {								\
++	struct type *cqh_first;		/* first element */		\
++	struct type *cqh_last;		/* last element */		\
++}
++
++#define DWC_CIRCLEQ_HEAD_INITIALIZER(head)				\
++	{ DWC_CIRCLEQ_END(&head), DWC_CIRCLEQ_END(&head) }
++
++#define DWC_CIRCLEQ_ENTRY(type)						\
++struct {								\
++	struct type *cqe_next;		/* next element */		\
++	struct type *cqe_prev;		/* previous element */		\
++}
++
++/*
++ * Circular queue access methods
++ */
++#define DWC_CIRCLEQ_FIRST(head)		((head)->cqh_first)
++#define DWC_CIRCLEQ_LAST(head)		((head)->cqh_last)
++#define DWC_CIRCLEQ_END(head)		((void *)(head))
++#define DWC_CIRCLEQ_NEXT(elm, field)	((elm)->field.cqe_next)
++#define DWC_CIRCLEQ_PREV(elm, field)	((elm)->field.cqe_prev)
++#define DWC_CIRCLEQ_EMPTY(head)						\
++	(DWC_CIRCLEQ_FIRST(head) == DWC_CIRCLEQ_END(head))
++
++#define DWC_CIRCLEQ_EMPTY_ENTRY(elm, field) (((elm)->field.cqe_next == NULL) && ((elm)->field.cqe_prev == NULL))
++
++#define DWC_CIRCLEQ_FOREACH(var, head, field)				\
++	for((var) = DWC_CIRCLEQ_FIRST(head);				\
++	    (var) != DWC_CIRCLEQ_END(head);				\
++	    (var) = DWC_CIRCLEQ_NEXT(var, field))
++
++#define DWC_CIRCLEQ_FOREACH_SAFE(var, var2, head, field)			\
++	for((var) = DWC_CIRCLEQ_FIRST(head), var2 = DWC_CIRCLEQ_NEXT(var, field); \
++	    (var) != DWC_CIRCLEQ_END(head);					\
++	    (var) = var2, var2 = DWC_CIRCLEQ_NEXT(var, field))
++
++#define DWC_CIRCLEQ_FOREACH_REVERSE(var, head, field)			\
++	for((var) = DWC_CIRCLEQ_LAST(head);				\
++	    (var) != DWC_CIRCLEQ_END(head);				\
++	    (var) = DWC_CIRCLEQ_PREV(var, field))
++
++/*
++ * Circular queue functions.
++ */
++#define DWC_CIRCLEQ_INIT(head) do {					\
++	(head)->cqh_first = DWC_CIRCLEQ_END(head);			\
++	(head)->cqh_last = DWC_CIRCLEQ_END(head);			\
++} while (0)
++
++#define DWC_CIRCLEQ_INIT_ENTRY(elm, field) do {				\
++	(elm)->field.cqe_next = NULL;					\
++	(elm)->field.cqe_prev = NULL;					\
++} while (0)
++
++#define DWC_CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do {	\
++	(elm)->field.cqe_next = (listelm)->field.cqe_next;		\
++	(elm)->field.cqe_prev = (listelm);				\
++	if ((listelm)->field.cqe_next == DWC_CIRCLEQ_END(head))		\
++		(head)->cqh_last = (elm);				\
++	else								\
++		(listelm)->field.cqe_next->field.cqe_prev = (elm);	\
++	(listelm)->field.cqe_next = (elm);				\
++} while (0)
++
++#define DWC_CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do {	\
++	(elm)->field.cqe_next = (listelm);				\
++	(elm)->field.cqe_prev = (listelm)->field.cqe_prev;		\
++	if ((listelm)->field.cqe_prev == DWC_CIRCLEQ_END(head))		\
++		(head)->cqh_first = (elm);				\
++	else								\
++		(listelm)->field.cqe_prev->field.cqe_next = (elm);	\
++	(listelm)->field.cqe_prev = (elm);				\
++} while (0)
++
++#define DWC_CIRCLEQ_INSERT_HEAD(head, elm, field) do {			\
++	(elm)->field.cqe_next = (head)->cqh_first;			\
++	(elm)->field.cqe_prev = DWC_CIRCLEQ_END(head);			\
++	if ((head)->cqh_last == DWC_CIRCLEQ_END(head))			\
++		(head)->cqh_last = (elm);				\
++	else								\
++		(head)->cqh_first->field.cqe_prev = (elm);		\
++	(head)->cqh_first = (elm);					\
++} while (0)
++
++#define DWC_CIRCLEQ_INSERT_TAIL(head, elm, field) do {			\
++	(elm)->field.cqe_next = DWC_CIRCLEQ_END(head);			\
++	(elm)->field.cqe_prev = (head)->cqh_last;			\
++	if ((head)->cqh_first == DWC_CIRCLEQ_END(head))			\
++		(head)->cqh_first = (elm);				\
++	else								\
++		(head)->cqh_last->field.cqe_next = (elm);		\
++	(head)->cqh_last = (elm);					\
++} while (0)
++
++#define DWC_CIRCLEQ_REMOVE(head, elm, field) do {			\
++	if ((elm)->field.cqe_next == DWC_CIRCLEQ_END(head))		\
++		(head)->cqh_last = (elm)->field.cqe_prev;		\
++	else								\
++		(elm)->field.cqe_next->field.cqe_prev =			\
++		    (elm)->field.cqe_prev;				\
++	if ((elm)->field.cqe_prev == DWC_CIRCLEQ_END(head))		\
++		(head)->cqh_first = (elm)->field.cqe_next;		\
++	else								\
++		(elm)->field.cqe_prev->field.cqe_next =			\
++		    (elm)->field.cqe_next;				\
++} while (0)
++
++#define DWC_CIRCLEQ_REMOVE_INIT(head, elm, field) do {			\
++	DWC_CIRCLEQ_REMOVE(head, elm, field);				\
++	DWC_CIRCLEQ_INIT_ENTRY(elm, field);				\
++} while (0)
++
++#define DWC_CIRCLEQ_REPLACE(head, elm, elm2, field) do {		\
++	if (((elm2)->field.cqe_next = (elm)->field.cqe_next) ==		\
++	    DWC_CIRCLEQ_END(head))					\
++		(head).cqh_last = (elm2);				\
++	else								\
++		(elm2)->field.cqe_next->field.cqe_prev = (elm2);	\
++	if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) ==		\
++	    DWC_CIRCLEQ_END(head))					\
++		(head).cqh_first = (elm2);				\
++	else								\
++		(elm2)->field.cqe_prev->field.cqe_next = (elm2);	\
++} while (0)
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _DWC_LIST_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_mem.c
+@@ -0,0 +1,245 @@
++/* Memory Debugging */
++#ifdef DWC_DEBUG_MEMORY
++
++#include "dwc_os.h"
++#include "dwc_list.h"
++
++struct allocation {
++	void *addr;
++	void *ctx;
++	char *func;
++	int line;
++	uint32_t size;
++	int dma;
++	DWC_CIRCLEQ_ENTRY(allocation) entry;
++};
++
++DWC_CIRCLEQ_HEAD(allocation_queue, allocation);
++
++struct allocation_manager {
++	void *mem_ctx;
++	struct allocation_queue allocations;
++
++	/* statistics */
++	int num;
++	int num_freed;
++	int num_active;
++	uint32_t total;
++	uint32_t cur;
++	uint32_t max;
++};
++
++static struct allocation_manager *manager = NULL;
++
++static int add_allocation(void *ctx, uint32_t size, char const *func, int line, void *addr,
++			  int dma)
++{
++	struct allocation *a;
++
++	DWC_ASSERT(manager != NULL, "manager not allocated");
++
++	a = __DWC_ALLOC_ATOMIC(manager->mem_ctx, sizeof(*a));
++	if (!a) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	a->func = __DWC_ALLOC_ATOMIC(manager->mem_ctx, DWC_STRLEN(func) + 1);
++	if (!a->func) {
++		__DWC_FREE(manager->mem_ctx, a);
++		return -DWC_E_NO_MEMORY;
++	}
++
++	DWC_MEMCPY(a->func, func, DWC_STRLEN(func) + 1);
++	a->addr = addr;
++	a->ctx = ctx;
++	a->line = line;
++	a->size = size;
++	a->dma = dma;
++	DWC_CIRCLEQ_INSERT_TAIL(&manager->allocations, a, entry);
++
++	/* Update stats */
++	manager->num++;
++	manager->num_active++;
++	manager->total += size;
++	manager->cur += size;
++
++	if (manager->max < manager->cur) {
++		manager->max = manager->cur;
++	}
++
++	return 0;
++}
++
++static struct allocation *find_allocation(void *ctx, void *addr)
++{
++	struct allocation *a;
++
++	DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) {
++		if (a->ctx == ctx && a->addr == addr) {
++			return a;
++		}
++	}
++
++	return NULL;
++}
++
++static void free_allocation(void *ctx, void *addr, char const *func, int line)
++{
++	struct allocation *a = find_allocation(ctx, addr);
++
++	if (!a) {
++		DWC_ASSERT(0,
++			   "Free of address %p that was never allocated or already freed %s:%d",
++			   addr, func, line);
++		return;
++	}
++
++	DWC_CIRCLEQ_REMOVE(&manager->allocations, a, entry);
++
++	manager->num_active--;
++	manager->num_freed++;
++	manager->cur -= a->size;
++	__DWC_FREE(manager->mem_ctx, a->func);
++	__DWC_FREE(manager->mem_ctx, a);
++}
++
++int dwc_memory_debug_start(void *mem_ctx)
++{
++	DWC_ASSERT(manager == NULL, "Memory debugging has already started\n");
++
++	if (manager) {
++		return -DWC_E_BUSY;
++	}
++
++	manager = __DWC_ALLOC(mem_ctx, sizeof(*manager));
++	if (!manager) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	DWC_CIRCLEQ_INIT(&manager->allocations);
++	manager->mem_ctx = mem_ctx;
++	manager->num = 0;
++	manager->num_freed = 0;
++	manager->num_active = 0;
++	manager->total = 0;
++	manager->cur = 0;
++	manager->max = 0;
++
++	return 0;
++}
++
++void dwc_memory_debug_stop(void)
++{
++	struct allocation *a;
++
++	dwc_memory_debug_report();
++
++	DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) {
++		DWC_ERROR("Memory leaked from %s:%d\n", a->func, a->line);
++		free_allocation(a->ctx, a->addr, NULL, -1);
++	}
++
++	__DWC_FREE(manager->mem_ctx, manager);
++}
++
++void dwc_memory_debug_report(void)
++{
++	struct allocation *a;
++
++	DWC_PRINTF("\n\n\n----------------- Memory Debugging Report -----------------\n\n");
++	DWC_PRINTF("Num Allocations = %d\n", manager->num);
++	DWC_PRINTF("Freed = %d\n", manager->num_freed);
++	DWC_PRINTF("Active = %d\n", manager->num_active);
++	DWC_PRINTF("Current Memory Used = %d\n", manager->cur);
++	DWC_PRINTF("Total Memory Used = %d\n", manager->total);
++	DWC_PRINTF("Maximum Memory Used at Once = %d\n", manager->max);
++	DWC_PRINTF("Unfreed allocations:\n");
++
++	DWC_CIRCLEQ_FOREACH(a, &manager->allocations, entry) {
++		DWC_PRINTF("    addr=%p, size=%d from %s:%d, DMA=%d\n",
++			   a->addr, a->size, a->func, a->line, a->dma);
++	}
++}
++
++/* The replacement functions */
++void *dwc_alloc_debug(void *mem_ctx, uint32_t size, char const *func, int line)
++{
++	void *addr = __DWC_ALLOC(mem_ctx, size);
++
++	if (!addr) {
++		return NULL;
++	}
++
++	if (add_allocation(mem_ctx, size, func, line, addr, 0)) {
++		__DWC_FREE(mem_ctx, addr);
++		return NULL;
++	}
++
++	return addr;
++}
++
++void *dwc_alloc_atomic_debug(void *mem_ctx, uint32_t size, char const *func,
++			     int line)
++{
++	void *addr = __DWC_ALLOC_ATOMIC(mem_ctx, size);
++
++	if (!addr) {
++		return NULL;
++	}
++
++	if (add_allocation(mem_ctx, size, func, line, addr, 0)) {
++		__DWC_FREE(mem_ctx, addr);
++		return NULL;
++	}
++
++	return addr;
++}
++
++void dwc_free_debug(void *mem_ctx, void *addr, char const *func, int line)
++{
++	free_allocation(mem_ctx, addr, func, line);
++	__DWC_FREE(mem_ctx, addr);
++}
++
++void *dwc_dma_alloc_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr,
++			  char const *func, int line)
++{
++	void *addr = __DWC_DMA_ALLOC(dma_ctx, size, dma_addr);
++
++	if (!addr) {
++		return NULL;
++	}
++
++	if (add_allocation(dma_ctx, size, func, line, addr, 1)) {
++		__DWC_DMA_FREE(dma_ctx, size, addr, *dma_addr);
++		return NULL;
++	}
++
++	return addr;
++}
++
++void *dwc_dma_alloc_atomic_debug(void *dma_ctx, uint32_t size,
++				 dwc_dma_t *dma_addr, char const *func, int line)
++{
++	void *addr = __DWC_DMA_ALLOC_ATOMIC(dma_ctx, size, dma_addr);
++
++	if (!addr) {
++		return NULL;
++	}
++
++	if (add_allocation(dma_ctx, size, func, line, addr, 1)) {
++		__DWC_DMA_FREE(dma_ctx, size, addr, *dma_addr);
++		return NULL;
++	}
++
++	return addr;
++}
++
++void dwc_dma_free_debug(void *dma_ctx, uint32_t size, void *virt_addr,
++			dwc_dma_t dma_addr, char const *func, int line)
++{
++	free_allocation(dma_ctx, virt_addr, func, line);
++	__DWC_DMA_FREE(dma_ctx, size, virt_addr, dma_addr);
++}
++
++#endif /* DWC_DEBUG_MEMORY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_modpow.c
+@@ -0,0 +1,636 @@
++/* Bignum routines adapted from PUTTY sources.  PuTTY copyright notice follows.
++ *
++ * PuTTY is copyright 1997-2007 Simon Tatham.
++ *
++ * Portions copyright Robert de Bath, Joris van Rantwijk, Delian
++ * Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
++ * Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, Markus
++ * Kuhn, and CORE SDI S.A.
++ *
++ * Permission is hereby granted, free of charge, to any person
++ * obtaining a copy of this software and associated documentation files
++ * (the "Software"), to deal in the Software without restriction,
++ * including without limitation the rights to use, copy, modify, merge,
++ * publish, distribute, sublicense, and/or sell copies of the Software,
++ * and to permit persons to whom the Software is furnished to do so,
++ * subject to the following conditions:
++ *
++ * The above copyright notice and this permission notice shall be
++ * included in all copies or substantial portions of the Software.
++
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
++ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
++ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
++ * NONINFRINGEMENT.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
++ * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
++ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
++ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
++ *
++ */
++#ifdef DWC_CRYPTOLIB
++
++#ifndef CONFIG_MACH_IPMATE
++
++#include "dwc_modpow.h"
++
++#define BIGNUM_INT_MASK  0xFFFFFFFFUL
++#define BIGNUM_TOP_BIT   0x80000000UL
++#define BIGNUM_INT_BITS  32
++
++
++static void *snmalloc(void *mem_ctx, size_t n, size_t size)
++{
++    void *p;
++    size *= n;
++    if (size == 0) size = 1;
++    p = dwc_alloc(mem_ctx, size);
++    return p;
++}
++
++#define snewn(ctx, n, type) ((type *)snmalloc((ctx), (n), sizeof(type)))
++#define sfree dwc_free
++
++/*
++ * Usage notes:
++ *  * Do not call the DIVMOD_WORD macro with expressions such as array
++ *    subscripts, as some implementations object to this (see below).
++ *  * Note that none of the division methods below will cope if the
++ *    quotient won't fit into BIGNUM_INT_BITS. Callers should be careful
++ *    to avoid this case.
++ *    If this condition occurs, in the case of the x86 DIV instruction,
++ *    an overflow exception will occur, which (according to a correspondent)
++ *    will manifest on Windows as something like
++ *      0xC0000095: Integer overflow
++ *    The C variant won't give the right answer, either.
++ */
++
++#define MUL_WORD(w1, w2) ((BignumDblInt)w1 * w2)
++
++#if defined __GNUC__ && defined __i386__
++#define DIVMOD_WORD(q, r, hi, lo, w) \
++    __asm__("div %2" : \
++	    "=d" (r), "=a" (q) : \
++	    "r" (w), "d" (hi), "a" (lo))
++#else
++#define DIVMOD_WORD(q, r, hi, lo, w) do { \
++    BignumDblInt n = (((BignumDblInt)hi) << BIGNUM_INT_BITS) | lo; \
++    q = n / w; \
++    r = n % w; \
++} while (0)
++#endif
++
++//    q = n / w;
++//    r = n % w;
++
++#define BIGNUM_INT_BYTES (BIGNUM_INT_BITS / 8)
++
++#define BIGNUM_INTERNAL
++
++static Bignum newbn(void *mem_ctx, int length)
++{
++    Bignum b = snewn(mem_ctx, length + 1, BignumInt);
++    //if (!b)
++    //abort();		       /* FIXME */
++    DWC_MEMSET(b, 0, (length + 1) * sizeof(*b));
++    b[0] = length;
++    return b;
++}
++
++void freebn(void *mem_ctx, Bignum b)
++{
++    /*
++     * Burn the evidence, just in case.
++     */
++    DWC_MEMSET(b, 0, sizeof(b[0]) * (b[0] + 1));
++    sfree(mem_ctx, b);
++}
++
++/*
++ * Compute c = a * b.
++ * Input is in the first len words of a and b.
++ * Result is returned in the first 2*len words of c.
++ */
++static void internal_mul(BignumInt *a, BignumInt *b,
++			 BignumInt *c, int len)
++{
++    int i, j;
++    BignumDblInt t;
++
++    for (j = 0; j < 2 * len; j++)
++	c[j] = 0;
++
++    for (i = len - 1; i >= 0; i--) {
++	t = 0;
++	for (j = len - 1; j >= 0; j--) {
++	    t += MUL_WORD(a[i], (BignumDblInt) b[j]);
++	    t += (BignumDblInt) c[i + j + 1];
++	    c[i + j + 1] = (BignumInt) t;
++	    t = t >> BIGNUM_INT_BITS;
++	}
++	c[i] = (BignumInt) t;
++    }
++}
++
++static void internal_add_shifted(BignumInt *number,
++				 unsigned n, int shift)
++{
++    int word = 1 + (shift / BIGNUM_INT_BITS);
++    int bshift = shift % BIGNUM_INT_BITS;
++    BignumDblInt addend;
++
++    addend = (BignumDblInt)n << bshift;
++
++    while (addend) {
++	addend += number[word];
++	number[word] = (BignumInt) addend & BIGNUM_INT_MASK;
++	addend >>= BIGNUM_INT_BITS;
++	word++;
++    }
++}
++
++/*
++ * Compute a = a % m.
++ * Input in first alen words of a and first mlen words of m.
++ * Output in first alen words of a
++ * (of which first alen-mlen words will be zero).
++ * The MSW of m MUST have its high bit set.
++ * Quotient is accumulated in the `quotient' array, which is a Bignum
++ * rather than the internal bigendian format. Quotient parts are shifted
++ * left by `qshift' before adding into quot.
++ */
++static void internal_mod(BignumInt *a, int alen,
++			 BignumInt *m, int mlen,
++			 BignumInt *quot, int qshift)
++{
++    BignumInt m0, m1;
++    unsigned int h;
++    int i, k;
++
++    m0 = m[0];
++    if (mlen > 1)
++	m1 = m[1];
++    else
++	m1 = 0;
++
++    for (i = 0; i <= alen - mlen; i++) {
++	BignumDblInt t;
++	unsigned int q, r, c, ai1;
++
++	if (i == 0) {
++	    h = 0;
++	} else {
++	    h = a[i - 1];
++	    a[i - 1] = 0;
++	}
++
++	if (i == alen - 1)
++	    ai1 = 0;
++	else
++	    ai1 = a[i + 1];
++
++	/* Find q = h:a[i] / m0 */
++	if (h >= m0) {
++	    /*
++	     * Special case.
++	     *
++	     * To illustrate it, suppose a BignumInt is 8 bits, and
++	     * we are dividing (say) A1:23:45:67 by A1:B2:C3. Then
++	     * our initial division will be 0xA123 / 0xA1, which
++	     * will give a quotient of 0x100 and a divide overflow.
++	     * However, the invariants in this division algorithm
++	     * are not violated, since the full number A1:23:... is
++	     * _less_ than the quotient prefix A1:B2:... and so the
++	     * following correction loop would have sorted it out.
++	     *
++	     * In this situation we set q to be the largest
++	     * quotient we _can_ stomach (0xFF, of course).
++	     */
++	    q = BIGNUM_INT_MASK;
++	} else {
++	    /* Macro doesn't want an array subscript expression passed
++	     * into it (see definition), so use a temporary. */
++	    BignumInt tmplo = a[i];
++	    DIVMOD_WORD(q, r, h, tmplo, m0);
++
++	    /* Refine our estimate of q by looking at
++	     h:a[i]:a[i+1] / m0:m1 */
++	    t = MUL_WORD(m1, q);
++	    if (t > ((BignumDblInt) r << BIGNUM_INT_BITS) + ai1) {
++		q--;
++		t -= m1;
++		r = (r + m0) & BIGNUM_INT_MASK;     /* overflow? */
++		if (r >= (BignumDblInt) m0 &&
++		    t > ((BignumDblInt) r << BIGNUM_INT_BITS) + ai1) q--;
++	    }
++	}
++
++	/* Subtract q * m from a[i...] */
++	c = 0;
++	for (k = mlen - 1; k >= 0; k--) {
++	    t = MUL_WORD(q, m[k]);
++	    t += c;
++	    c = (unsigned)(t >> BIGNUM_INT_BITS);
++	    if ((BignumInt) t > a[i + k])
++		c++;
++	    a[i + k] -= (BignumInt) t;
++	}
++
++	/* Add back m in case of borrow */
++	if (c != h) {
++	    t = 0;
++	    for (k = mlen - 1; k >= 0; k--) {
++		t += m[k];
++		t += a[i + k];
++		a[i + k] = (BignumInt) t;
++		t = t >> BIGNUM_INT_BITS;
++	    }
++	    q--;
++	}
++	if (quot)
++	    internal_add_shifted(quot, q, qshift + BIGNUM_INT_BITS * (alen - mlen - i));
++    }
++}
++
++/*
++ * Compute p % mod.
++ * The most significant word of mod MUST be non-zero.
++ * We assume that the result array is the same size as the mod array.
++ * We optionally write out a quotient if `quotient' is non-NULL.
++ * We can avoid writing out the result if `result' is NULL.
++ */
++void bigdivmod(void *mem_ctx, Bignum p, Bignum mod, Bignum result, Bignum quotient)
++{
++    BignumInt *n, *m;
++    int mshift;
++    int plen, mlen, i, j;
++
++    /* Allocate m of size mlen, copy mod to m */
++    /* We use big endian internally */
++    mlen = mod[0];
++    m = snewn(mem_ctx, mlen, BignumInt);
++    //if (!m)
++    //abort();		       /* FIXME */
++    for (j = 0; j < mlen; j++)
++	m[j] = mod[mod[0] - j];
++
++    /* Shift m left to make msb bit set */
++    for (mshift = 0; mshift < BIGNUM_INT_BITS-1; mshift++)
++	if ((m[0] << mshift) & BIGNUM_TOP_BIT)
++	    break;
++    if (mshift) {
++	for (i = 0; i < mlen - 1; i++)
++	    m[i] = (m[i] << mshift) | (m[i + 1] >> (BIGNUM_INT_BITS - mshift));
++	m[mlen - 1] = m[mlen - 1] << mshift;
++    }
++
++    plen = p[0];
++    /* Ensure plen > mlen */
++    if (plen <= mlen)
++	plen = mlen + 1;
++
++    /* Allocate n of size plen, copy p to n */
++    n = snewn(mem_ctx, plen, BignumInt);
++    //if (!n)
++    //abort();		       /* FIXME */
++    for (j = 0; j < plen; j++)
++	n[j] = 0;
++    for (j = 1; j <= (int)p[0]; j++)
++	n[plen - j] = p[j];
++
++    /* Main computation */
++    internal_mod(n, plen, m, mlen, quotient, mshift);
++
++    /* Fixup result in case the modulus was shifted */
++    if (mshift) {
++	for (i = plen - mlen - 1; i < plen - 1; i++)
++	    n[i] = (n[i] << mshift) | (n[i + 1] >> (BIGNUM_INT_BITS - mshift));
++	n[plen - 1] = n[plen - 1] << mshift;
++	internal_mod(n, plen, m, mlen, quotient, 0);
++	for (i = plen - 1; i >= plen - mlen; i--)
++	    n[i] = (n[i] >> mshift) | (n[i - 1] << (BIGNUM_INT_BITS - mshift));
++    }
++
++    /* Copy result to buffer */
++    if (result) {
++	for (i = 1; i <= (int)result[0]; i++) {
++	    int j = plen - i;
++	    result[i] = j >= 0 ? n[j] : 0;
++	}
++    }
++
++    /* Free temporary arrays */
++    for (i = 0; i < mlen; i++)
++	m[i] = 0;
++    sfree(mem_ctx, m);
++    for (i = 0; i < plen; i++)
++	n[i] = 0;
++    sfree(mem_ctx, n);
++}
++
++/*
++ * Simple remainder.
++ */
++Bignum bigmod(void *mem_ctx, Bignum a, Bignum b)
++{
++    Bignum r = newbn(mem_ctx, b[0]);
++    bigdivmod(mem_ctx, a, b, r, NULL);
++    return r;
++}
++
++/*
++ * Compute (base ^ exp) % mod.
++ */
++Bignum dwc_modpow(void *mem_ctx, Bignum base_in, Bignum exp, Bignum mod)
++{
++    BignumInt *a, *b, *n, *m;
++    int mshift;
++    int mlen, i, j;
++    Bignum base, result;
++
++    /*
++     * The most significant word of mod needs to be non-zero. It
++     * should already be, but let's make sure.
++     */
++    //assert(mod[mod[0]] != 0);
++
++    /*
++     * Make sure the base is smaller than the modulus, by reducing
++     * it modulo the modulus if not.
++     */
++    base = bigmod(mem_ctx, base_in, mod);
++
++    /* Allocate m of size mlen, copy mod to m */
++    /* We use big endian internally */
++    mlen = mod[0];
++    m = snewn(mem_ctx, mlen, BignumInt);
++    //if (!m)
++    //abort();		       /* FIXME */
++    for (j = 0; j < mlen; j++)
++	m[j] = mod[mod[0] - j];
++
++    /* Shift m left to make msb bit set */
++    for (mshift = 0; mshift < BIGNUM_INT_BITS - 1; mshift++)
++	if ((m[0] << mshift) & BIGNUM_TOP_BIT)
++	    break;
++    if (mshift) {
++	for (i = 0; i < mlen - 1; i++)
++	    m[i] =
++		(m[i] << mshift) | (m[i + 1] >>
++				    (BIGNUM_INT_BITS - mshift));
++	m[mlen - 1] = m[mlen - 1] << mshift;
++    }
++
++    /* Allocate n of size mlen, copy base to n */
++    n = snewn(mem_ctx, mlen, BignumInt);
++    //if (!n)
++    //abort();		       /* FIXME */
++    i = mlen - base[0];
++    for (j = 0; j < i; j++)
++	n[j] = 0;
++    for (j = 0; j < base[0]; j++)
++	n[i + j] = base[base[0] - j];
++
++    /* Allocate a and b of size 2*mlen. Set a = 1 */
++    a = snewn(mem_ctx, 2 * mlen, BignumInt);
++    //if (!a)
++    //abort();		       /* FIXME */
++    b = snewn(mem_ctx, 2 * mlen, BignumInt);
++    //if (!b)
++    //abort();		       /* FIXME */
++    for (i = 0; i < 2 * mlen; i++)
++	a[i] = 0;
++    a[2 * mlen - 1] = 1;
++
++    /* Skip leading zero bits of exp. */
++    i = 0;
++    j = BIGNUM_INT_BITS - 1;
++    while (i < exp[0] && (exp[exp[0] - i] & (1 << j)) == 0) {
++	j--;
++	if (j < 0) {
++	    i++;
++	    j = BIGNUM_INT_BITS - 1;
++	}
++    }
++
++    /* Main computation */
++    while (i < exp[0]) {
++	while (j >= 0) {
++	    internal_mul(a + mlen, a + mlen, b, mlen);
++	    internal_mod(b, mlen * 2, m, mlen, NULL, 0);
++	    if ((exp[exp[0] - i] & (1 << j)) != 0) {
++		internal_mul(b + mlen, n, a, mlen);
++		internal_mod(a, mlen * 2, m, mlen, NULL, 0);
++	    } else {
++		BignumInt *t;
++		t = a;
++		a = b;
++		b = t;
++	    }
++	    j--;
++	}
++	i++;
++	j = BIGNUM_INT_BITS - 1;
++    }
++
++    /* Fixup result in case the modulus was shifted */
++    if (mshift) {
++	for (i = mlen - 1; i < 2 * mlen - 1; i++)
++	    a[i] =
++		(a[i] << mshift) | (a[i + 1] >>
++				    (BIGNUM_INT_BITS - mshift));
++	a[2 * mlen - 1] = a[2 * mlen - 1] << mshift;
++	internal_mod(a, mlen * 2, m, mlen, NULL, 0);
++	for (i = 2 * mlen - 1; i >= mlen; i--)
++	    a[i] =
++		(a[i] >> mshift) | (a[i - 1] <<
++				    (BIGNUM_INT_BITS - mshift));
++    }
++
++    /* Copy result to buffer */
++    result = newbn(mem_ctx, mod[0]);
++    for (i = 0; i < mlen; i++)
++	result[result[0] - i] = a[i + mlen];
++    while (result[0] > 1 && result[result[0]] == 0)
++	result[0]--;
++
++    /* Free temporary arrays */
++    for (i = 0; i < 2 * mlen; i++)
++	a[i] = 0;
++    sfree(mem_ctx, a);
++    for (i = 0; i < 2 * mlen; i++)
++	b[i] = 0;
++    sfree(mem_ctx, b);
++    for (i = 0; i < mlen; i++)
++	m[i] = 0;
++    sfree(mem_ctx, m);
++    for (i = 0; i < mlen; i++)
++	n[i] = 0;
++    sfree(mem_ctx, n);
++
++    freebn(mem_ctx, base);
++
++    return result;
++}
++
++
++#ifdef UNITTEST
++
++static __u32 dh_p[] = {
++	96,
++	0xFFFFFFFF,
++	0xFFFFFFFF,
++	0xA93AD2CA,
++	0x4B82D120,
++	0xE0FD108E,
++	0x43DB5BFC,
++	0x74E5AB31,
++	0x08E24FA0,
++	0xBAD946E2,
++	0x770988C0,
++	0x7A615D6C,
++	0xBBE11757,
++	0x177B200C,
++	0x521F2B18,
++	0x3EC86A64,
++	0xD8760273,
++	0xD98A0864,
++	0xF12FFA06,
++	0x1AD2EE6B,
++	0xCEE3D226,
++	0x4A25619D,
++	0x1E8C94E0,
++	0xDB0933D7,
++	0xABF5AE8C,
++	0xA6E1E4C7,
++	0xB3970F85,
++	0x5D060C7D,
++	0x8AEA7157,
++	0x58DBEF0A,
++	0xECFB8504,
++	0xDF1CBA64,
++	0xA85521AB,
++	0x04507A33,
++	0xAD33170D,
++	0x8AAAC42D,
++	0x15728E5A,
++	0x98FA0510,
++	0x15D22618,
++	0xEA956AE5,
++	0x3995497C,
++	0x95581718,
++	0xDE2BCBF6,
++	0x6F4C52C9,
++	0xB5C55DF0,
++	0xEC07A28F,
++	0x9B2783A2,
++	0x180E8603,
++	0xE39E772C,
++	0x2E36CE3B,
++	0x32905E46,
++	0xCA18217C,
++	0xF1746C08,
++	0x4ABC9804,
++	0x670C354E,
++	0x7096966D,
++	0x9ED52907,
++	0x208552BB,
++	0x1C62F356,
++	0xDCA3AD96,
++	0x83655D23,
++	0xFD24CF5F,
++	0x69163FA8,
++	0x1C55D39A,
++	0x98DA4836,
++	0xA163BF05,
++	0xC2007CB8,
++	0xECE45B3D,
++	0x49286651,
++	0x7C4B1FE6,
++	0xAE9F2411,
++	0x5A899FA5,
++	0xEE386BFB,
++	0xF406B7ED,
++	0x0BFF5CB6,
++	0xA637ED6B,
++	0xF44C42E9,
++	0x625E7EC6,
++	0xE485B576,
++	0x6D51C245,
++	0x4FE1356D,
++	0xF25F1437,
++	0x302B0A6D,
++	0xCD3A431B,
++	0xEF9519B3,
++	0x8E3404DD,
++	0x514A0879,
++	0x3B139B22,
++	0x020BBEA6,
++	0x8A67CC74,
++	0x29024E08,
++	0x80DC1CD1,
++	0xC4C6628B,
++	0x2168C234,
++	0xC90FDAA2,
++	0xFFFFFFFF,
++	0xFFFFFFFF,
++};
++
++static __u32 dh_a[] = {
++	8,
++	0xdf367516,
++	0x86459caa,
++	0xe2d459a4,
++	0xd910dae0,
++	0x8a8b5e37,
++	0x67ab31c6,
++	0xf0b55ea9,
++	0x440051d6,
++};
++
++static __u32 dh_b[] = {
++	8,
++	0xded92656,
++	0xe07a048a,
++	0x6fa452cd,
++	0x2df89d30,
++	0xc75f1b0f,
++	0x8ce3578f,
++	0x7980a324,
++	0x5daec786,
++};
++
++static __u32 dh_g[] = {
++	1,
++	2,
++};
++
++int main(void)
++{
++	int i;
++	__u32 *k;
++	k = dwc_modpow(NULL, dh_g, dh_a, dh_p);
++
++	printf("\n\n");
++	for (i=0; i<k[0]; i++) {
++		__u32 word32 = k[k[0] - i];
++		__u16 l = word32 & 0xffff;
++		__u16 m = (word32 & 0xffff0000) >> 16;
++		printf("%04x %04x ", m, l);
++		if (!((i + 1)%13)) printf("\n");
++	}
++	printf("\n\n");
++
++	if ((k[0] == 0x60) && (k[1] == 0x28e490e5) && (k[0x60] == 0x5a0d3d4e)) {
++		printf("PASS\n\n");
++	}
++	else {
++		printf("FAIL\n\n");
++	}
++
++}
++
++#endif /* UNITTEST */
++
++#endif /* CONFIG_MACH_IPMATE */
++
++#endif /*DWC_CRYPTOLIB */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_modpow.h
+@@ -0,0 +1,34 @@
++/*
++ * dwc_modpow.h
++ * See dwc_modpow.c for license and changes
++ */
++#ifndef _DWC_MODPOW_H
++#define _DWC_MODPOW_H
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#include "dwc_os.h"
++
++/** @file
++ *
++ * This file defines the module exponentiation function which is only used
++ * internally by the DWC UWB modules for calculation of PKs during numeric
++ * association.  The routine is taken from the PUTTY, an open source terminal
++ * emulator.  The PUTTY License is preserved in the dwc_modpow.c file.
++ *
++ */
++
++typedef uint32_t BignumInt;
++typedef uint64_t BignumDblInt;
++typedef BignumInt *Bignum;
++
++/* Compute modular exponentiaion */
++extern Bignum dwc_modpow(void *mem_ctx, Bignum base_in, Bignum exp, Bignum mod);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _LINUX_BIGNUM_H */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_notifier.c
+@@ -0,0 +1,319 @@
++#ifdef DWC_NOTIFYLIB
++
++#include "dwc_notifier.h"
++#include "dwc_list.h"
++
++typedef struct dwc_observer {
++	void *observer;
++	dwc_notifier_callback_t callback;
++	void *data;
++	char *notification;
++	DWC_CIRCLEQ_ENTRY(dwc_observer) list_entry;
++} observer_t;
++
++DWC_CIRCLEQ_HEAD(observer_queue, dwc_observer);
++
++typedef struct dwc_notifier {
++	void *mem_ctx;
++	void *object;
++	struct observer_queue observers;
++	DWC_CIRCLEQ_ENTRY(dwc_notifier) list_entry;
++} notifier_t;
++
++DWC_CIRCLEQ_HEAD(notifier_queue, dwc_notifier);
++
++typedef struct manager {
++	void *mem_ctx;
++	void *wkq_ctx;
++	dwc_workq_t *wq;
++//	dwc_mutex_t *mutex;
++	struct notifier_queue notifiers;
++} manager_t;
++
++static manager_t *manager = NULL;
++
++static int create_manager(void *mem_ctx, void *wkq_ctx)
++{
++	manager = dwc_alloc(mem_ctx, sizeof(manager_t));
++	if (!manager) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	DWC_CIRCLEQ_INIT(&manager->notifiers);
++
++	manager->wq = dwc_workq_alloc(wkq_ctx, "DWC Notification WorkQ");
++	if (!manager->wq) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	return 0;
++}
++
++static void free_manager(void)
++{
++	dwc_workq_free(manager->wq);
++
++	/* All notifiers must have unregistered themselves before this module
++	 * can be removed.  Hitting this assertion indicates a programmer
++	 * error. */
++	DWC_ASSERT(DWC_CIRCLEQ_EMPTY(&manager->notifiers),
++		   "Notification manager being freed before all notifiers have been removed");
++	dwc_free(manager->mem_ctx, manager);
++}
++
++#ifdef DEBUG
++static void dump_manager(void)
++{
++	notifier_t *n;
++	observer_t *o;
++
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	DWC_DEBUG("List of all notifiers and observers:\n");
++	DWC_CIRCLEQ_FOREACH(n, &manager->notifiers, list_entry) {
++		DWC_DEBUG("Notifier %p has observers:\n", n->object);
++		DWC_CIRCLEQ_FOREACH(o, &n->observers, list_entry) {
++			DWC_DEBUG("    %p watching %s\n", o->observer, o->notification);
++		}
++	}
++}
++#else
++#define dump_manager(...)
++#endif
++
++static observer_t *alloc_observer(void *mem_ctx, void *observer, char *notification,
++				  dwc_notifier_callback_t callback, void *data)
++{
++	observer_t *new_observer = dwc_alloc(mem_ctx, sizeof(observer_t));
++
++	if (!new_observer) {
++		return NULL;
++	}
++
++	DWC_CIRCLEQ_INIT_ENTRY(new_observer, list_entry);
++	new_observer->observer = observer;
++	new_observer->notification = notification;
++	new_observer->callback = callback;
++	new_observer->data = data;
++	return new_observer;
++}
++
++static void free_observer(void *mem_ctx, observer_t *observer)
++{
++	dwc_free(mem_ctx, observer);
++}
++
++static notifier_t *alloc_notifier(void *mem_ctx, void *object)
++{
++	notifier_t *notifier;
++
++	if (!object) {
++		return NULL;
++	}
++
++	notifier = dwc_alloc(mem_ctx, sizeof(notifier_t));
++	if (!notifier) {
++		return NULL;
++	}
++
++	DWC_CIRCLEQ_INIT(&notifier->observers);
++	DWC_CIRCLEQ_INIT_ENTRY(notifier, list_entry);
++
++	notifier->mem_ctx = mem_ctx;
++	notifier->object = object;
++	return notifier;
++}
++
++static void free_notifier(notifier_t *notifier)
++{
++	observer_t *observer;
++
++	DWC_CIRCLEQ_FOREACH(observer, &notifier->observers, list_entry) {
++		free_observer(notifier->mem_ctx, observer);
++	}
++
++	dwc_free(notifier->mem_ctx, notifier);
++}
++
++static notifier_t *find_notifier(void *object)
++{
++	notifier_t *notifier;
++
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	if (!object) {
++		return NULL;
++	}
++
++	DWC_CIRCLEQ_FOREACH(notifier, &manager->notifiers, list_entry) {
++		if (notifier->object == object) {
++			return notifier;
++		}
++	}
++
++	return NULL;
++}
++
++int dwc_alloc_notification_manager(void *mem_ctx, void *wkq_ctx)
++{
++	return create_manager(mem_ctx, wkq_ctx);
++}
++
++void dwc_free_notification_manager(void)
++{
++	free_manager();
++}
++
++dwc_notifier_t *dwc_register_notifier(void *mem_ctx, void *object)
++{
++	notifier_t *notifier;
++
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	notifier = find_notifier(object);
++	if (notifier) {
++		DWC_ERROR("Notifier %p is already registered\n", object);
++		return NULL;
++	}
++
++	notifier = alloc_notifier(mem_ctx, object);
++	if (!notifier) {
++		return NULL;
++	}
++
++	DWC_CIRCLEQ_INSERT_TAIL(&manager->notifiers, notifier, list_entry);
++
++	DWC_INFO("Notifier %p registered", object);
++	dump_manager();
++
++	return notifier;
++}
++
++void dwc_unregister_notifier(dwc_notifier_t *notifier)
++{
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	if (!DWC_CIRCLEQ_EMPTY(&notifier->observers)) {
++		observer_t *o;
++
++		DWC_ERROR("Notifier %p has active observers when removing\n", notifier->object);
++		DWC_CIRCLEQ_FOREACH(o, &notifier->observers, list_entry) {
++			DWC_DEBUGC("    %p watching %s\n", o->observer, o->notification);
++		}
++
++		DWC_ASSERT(DWC_CIRCLEQ_EMPTY(&notifier->observers),
++			   "Notifier %p has active observers when removing", notifier);
++	}
++
++	DWC_CIRCLEQ_REMOVE_INIT(&manager->notifiers, notifier, list_entry);
++	free_notifier(notifier);
++
++	DWC_INFO("Notifier unregistered");
++	dump_manager();
++}
++
++/* Add an observer to observe the notifier for a particular state, event, or notification. */
++int dwc_add_observer(void *observer, void *object, char *notification,
++		     dwc_notifier_callback_t callback, void *data)
++{
++	notifier_t *notifier = find_notifier(object);
++	observer_t *new_observer;
++
++	if (!notifier) {
++		DWC_ERROR("Notifier %p is not found when adding observer\n", object);
++		return -DWC_E_INVALID;
++	}
++
++	new_observer = alloc_observer(notifier->mem_ctx, observer, notification, callback, data);
++	if (!new_observer) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	DWC_CIRCLEQ_INSERT_TAIL(&notifier->observers, new_observer, list_entry);
++
++	DWC_INFO("Added observer %p to notifier %p observing notification %s, callback=%p, data=%p",
++		 observer, object, notification, callback, data);
++
++	dump_manager();
++	return 0;
++}
++
++int dwc_remove_observer(void *observer)
++{
++	notifier_t *n;
++
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	DWC_CIRCLEQ_FOREACH(n, &manager->notifiers, list_entry) {
++		observer_t *o;
++		observer_t *o2;
++
++		DWC_CIRCLEQ_FOREACH_SAFE(o, o2, &n->observers, list_entry) {
++			if (o->observer == observer) {
++				DWC_CIRCLEQ_REMOVE_INIT(&n->observers, o, list_entry);
++				DWC_INFO("Removing observer %p from notifier %p watching notification %s:",
++					 o->observer, n->object, o->notification);
++				free_observer(n->mem_ctx, o);
++			}
++		}
++	}
++
++	dump_manager();
++	return 0;
++}
++
++typedef struct callback_data {
++	void *mem_ctx;
++	dwc_notifier_callback_t cb;
++	void *observer;
++	void *data;
++	void *object;
++	char *notification;
++	void *notification_data;
++} cb_data_t;
++
++static void cb_task(void *data)
++{
++	cb_data_t *cb = (cb_data_t *)data;
++
++	cb->cb(cb->object, cb->notification, cb->observer, cb->notification_data, cb->data);
++	dwc_free(cb->mem_ctx, cb);
++}
++
++void dwc_notify(dwc_notifier_t *notifier, char *notification, void *notification_data)
++{
++	observer_t *o;
++
++	DWC_ASSERT(manager, "Notification manager not found");
++
++	DWC_CIRCLEQ_FOREACH(o, &notifier->observers, list_entry) {
++		int len = DWC_STRLEN(notification);
++
++		if (DWC_STRLEN(o->notification) != len) {
++			continue;
++		}
++
++		if (DWC_STRNCMP(o->notification, notification, len) == 0) {
++			cb_data_t *cb_data = dwc_alloc(notifier->mem_ctx, sizeof(cb_data_t));
++
++			if (!cb_data) {
++				DWC_ERROR("Failed to allocate callback data\n");
++				return;
++			}
++
++			cb_data->mem_ctx = notifier->mem_ctx;
++			cb_data->cb = o->callback;
++			cb_data->observer = o->observer;
++			cb_data->data = o->data;
++			cb_data->object = notifier->object;
++			cb_data->notification = notification;
++			cb_data->notification_data = notification_data;
++			DWC_DEBUGC("Observer found %p for notification %s\n", o->observer, notification);
++			DWC_WORKQ_SCHEDULE(manager->wq, cb_task, cb_data,
++					   "Notify callback from %p for Notification %s, to observer %p",
++					   cb_data->object, notification, cb_data->observer);
++		}
++	}
++}
++
++#endif	/* DWC_NOTIFYLIB */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_notifier.h
+@@ -0,0 +1,122 @@
++
++#ifndef __DWC_NOTIFIER_H__
++#define __DWC_NOTIFIER_H__
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#include "dwc_os.h"
++
++/** @file
++ *
++ * A simple implementation of the Observer pattern.  Any "module" can
++ * register as an observer or notifier.  The notion of "module" is abstract and
++ * can mean anything used to identify either an observer or notifier.  Usually
++ * it will be a pointer to a data structure which contains some state, ie an
++ * object.
++ *
++ * Before any notifiers can be added, the global notification manager must be
++ * brought up with dwc_alloc_notification_manager().
++ * dwc_free_notification_manager() will bring it down and free all resources.
++ * These would typically be called upon module load and unload.  The
++ * notification manager is a single global instance that handles all registered
++ * observable modules and observers so this should be done only once.
++ *
++ * A module can be observable by using Notifications to publicize some general
++ * information about it's state or operation.  It does not care who listens, or
++ * even if anyone listens, or what they do with the information.  The observable
++ * modules do not need to know any information about it's observers or their
++ * interface, or their state or data.
++ *
++ * Any module can register to emit Notifications.  It should publish a list of
++ * notifications that it can emit and their behavior, such as when they will get
++ * triggered, and what information will be provided to the observer.  Then it
++ * should register itself as an observable module. See dwc_register_notifier().
++ *
++ * Any module can observe any observable, registered module, provided it has a
++ * handle to the other module and knows what notifications to observe.  See
++ * dwc_add_observer().
++ *
++ * A function of type dwc_notifier_callback_t is called whenever a notification
++ * is triggered with one or more observers observing it.  This function is
++ * called in it's own process so it may sleep or block if needed.  It is
++ * guaranteed to be called sometime after the notification has occurred and will
++ * be called once per each time the notification is triggered.  It will NOT be
++ * called in the same process context used to trigger the notification.
++ *
++ * @section Limitiations
++ *
++ * Keep in mind that Notifications that can be triggered in rapid sucession may
++ * schedule too many processes too handle.  Be aware of this limitation when
++ * designing to use notifications, and only add notifications for appropriate
++ * observable information.
++ *
++ * Also Notification callbacks are not synchronous.  If you need to synchronize
++ * the behavior between module/observer you must use other means.  And perhaps
++ * that will mean Notifications are not the proper solution.
++ */
++
++struct dwc_notifier;
++typedef struct dwc_notifier dwc_notifier_t;
++
++/** The callback function must be of this type.
++ *
++ * @param object This is the object that is being observed.
++ * @param notification This is the notification that was triggered.
++ * @param observer This is the observer
++ * @param notification_data This is notification-specific data that the notifier
++ * has included in this notification.  The value of this should be published in
++ * the documentation of the observable module with the notifications.
++ * @param user_data This is any custom data that the observer provided when
++ * adding itself as an observer to the notification. */
++typedef void (*dwc_notifier_callback_t)(void *object, char *notification, void *observer,
++					void *notification_data, void *user_data);
++
++/** Brings up the notification manager. */
++extern int dwc_alloc_notification_manager(void *mem_ctx, void *wkq_ctx);
++/** Brings down the notification manager. */
++extern void dwc_free_notification_manager(void);
++
++/** This function registers an observable module.  A dwc_notifier_t object is
++ * returned to the observable module.  This is an opaque object that is used by
++ * the observable module to trigger notifications.  This object should only be
++ * accessible to functions that are authorized to trigger notifications for this
++ * module.  Observers do not need this object. */
++extern dwc_notifier_t *dwc_register_notifier(void *mem_ctx, void *object);
++
++/** This function unregisters an observable module.  All observers have to be
++ * removed prior to unregistration. */
++extern void dwc_unregister_notifier(dwc_notifier_t *notifier);
++
++/** Add a module as an observer to the observable module.  The observable module
++ * needs to have previously registered with the notification manager.
++ *
++ * @param observer The observer module
++ * @param object The module to observe
++ * @param notification The notification to observe
++ * @param callback The callback function to call
++ * @param user_data Any additional user data to pass into the callback function */
++extern int dwc_add_observer(void *observer, void *object, char *notification,
++			    dwc_notifier_callback_t callback, void *user_data);
++
++/** Removes the specified observer from all notifications that it is currently
++ * observing. */
++extern int dwc_remove_observer(void *observer);
++
++/** This function triggers a Notification.  It should be called by the
++ * observable module, or any module or library which the observable module
++ * allows to trigger notification on it's behalf.  Such as the dwc_cc_t.
++ *
++ * dwc_notify is a non-blocking function.  Callbacks are scheduled called in
++ * their own process context for each trigger.  Callbacks can be blocking.
++ * dwc_notify can be called from interrupt context if needed.
++ *
++ */
++void dwc_notify(dwc_notifier_t *notifier, char *notification, void *notification_data);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* __DWC_NOTIFIER_H__ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/dwc_os.h
+@@ -0,0 +1,1276 @@
++/* =========================================================================
++ * $File: //dwh/usb_iip/dev/software/dwc_common_port_2/dwc_os.h $
++ * $Revision: #14 $
++ * $Date: 2010/11/04 $
++ * $Change: 1621695 $
++ *
++ * Synopsys Portability Library Software and documentation
++ * (hereinafter, "Software") is an Unsupported proprietary work of
++ * Synopsys, Inc. unless otherwise expressly agreed to in writing
++ * between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product
++ * under any End User Software License Agreement or Agreement for
++ * Licensed Product with Synopsys or any supplement thereto. You are
++ * permitted to use and redistribute this Software in source and binary
++ * forms, with or without modification, provided that redistributions
++ * of source code must retain this notice. You may not view, use,
++ * disclose, copy or distribute this file or any information contained
++ * herein except pursuant to this license grant from Synopsys. If you
++ * do not agree with this notice, including the disclaimer below, then
++ * you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
++ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL
++ * SYNOPSYS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
++ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
++ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================= */
++#ifndef _DWC_OS_H_
++#define _DWC_OS_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/** @file
++ *
++ * DWC portability library, low level os-wrapper functions
++ *
++ */
++
++/* These basic types need to be defined by some OS header file or custom header
++ * file for your specific target architecture.
++ *
++ * uint8_t, int8_t, uint16_t, int16_t, uint32_t, int32_t, uint64_t, int64_t
++ *
++ * Any custom or alternate header file must be added and enabled here.
++ */
++
++#ifdef DWC_LINUX
++# include <linux/types.h>
++# ifdef CONFIG_DEBUG_MUTEXES
++#  include <linux/mutex.h>
++# endif
++# include <linux/spinlock.h>
++# include <linux/errno.h>
++# include <stdarg.h>
++#endif
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++# include <os_dep.h>
++#endif
++
++
++/** @name Primitive Types and Values */
++
++/** We define a boolean type for consistency.  Can be either YES or NO */
++typedef uint8_t dwc_bool_t;
++#define YES  1
++#define NO   0
++
++#ifdef DWC_LINUX
++
++/** @name Error Codes */
++#define DWC_E_INVALID		EINVAL
++#define DWC_E_NO_MEMORY		ENOMEM
++#define DWC_E_NO_DEVICE		ENODEV
++#define DWC_E_NOT_SUPPORTED	EOPNOTSUPP
++#define DWC_E_TIMEOUT		ETIMEDOUT
++#define DWC_E_BUSY		EBUSY
++#define DWC_E_AGAIN		EAGAIN
++#define DWC_E_RESTART		ERESTART
++#define DWC_E_ABORT		ECONNABORTED
++#define DWC_E_SHUTDOWN		ESHUTDOWN
++#define DWC_E_NO_DATA		ENODATA
++#define DWC_E_DISCONNECT	ECONNRESET
++#define DWC_E_UNKNOWN		EINVAL
++#define DWC_E_NO_STREAM_RES	ENOSR
++#define DWC_E_COMMUNICATION	ECOMM
++#define DWC_E_OVERFLOW		EOVERFLOW
++#define DWC_E_PROTOCOL		EPROTO
++#define DWC_E_IN_PROGRESS	EINPROGRESS
++#define DWC_E_PIPE		EPIPE
++#define DWC_E_IO		EIO
++#define DWC_E_NO_SPACE		ENOSPC
++
++#else
++
++/** @name Error Codes */
++#define DWC_E_INVALID		1001
++#define DWC_E_NO_MEMORY		1002
++#define DWC_E_NO_DEVICE		1003
++#define DWC_E_NOT_SUPPORTED	1004
++#define DWC_E_TIMEOUT		1005
++#define DWC_E_BUSY		1006
++#define DWC_E_AGAIN		1007
++#define DWC_E_RESTART		1008
++#define DWC_E_ABORT		1009
++#define DWC_E_SHUTDOWN		1010
++#define DWC_E_NO_DATA		1011
++#define DWC_E_DISCONNECT	2000
++#define DWC_E_UNKNOWN		3000
++#define DWC_E_NO_STREAM_RES	4001
++#define DWC_E_COMMUNICATION	4002
++#define DWC_E_OVERFLOW		4003
++#define DWC_E_PROTOCOL		4004
++#define DWC_E_IN_PROGRESS	4005
++#define DWC_E_PIPE		4006
++#define DWC_E_IO		4007
++#define DWC_E_NO_SPACE		4008
++
++#endif
++
++
++/** @name Tracing/Logging Functions
++ *
++ * These function provide the capability to add tracing, debugging, and error
++ * messages, as well exceptions as assertions.  The WUDEV uses these
++ * extensively.  These could be logged to the main console, the serial port, an
++ * internal buffer, etc.  These functions could also be no-op if they are too
++ * expensive on your system.  By default undefining the DEBUG macro already
++ * no-ops some of these functions. */
++
++/** Returns non-zero if in interrupt context. */
++extern dwc_bool_t DWC_IN_IRQ(void);
++#define dwc_in_irq DWC_IN_IRQ
++
++/** Returns "IRQ" if DWC_IN_IRQ is true. */
++static inline char *dwc_irq(void) {
++	return DWC_IN_IRQ() ? "IRQ" : "";
++}
++
++/** Returns non-zero if in bottom-half context. */
++extern dwc_bool_t DWC_IN_BH(void);
++#define dwc_in_bh DWC_IN_BH
++
++/** Returns "BH" if DWC_IN_BH is true. */
++static inline char *dwc_bh(void) {
++	return DWC_IN_BH() ? "BH" : "";
++}
++
++/**
++ * A vprintf() clone.  Just call vprintf if you've got it.
++ */
++extern void DWC_VPRINTF(char *format, va_list args);
++#define dwc_vprintf DWC_VPRINTF
++
++/**
++ * A vsnprintf() clone.  Just call vprintf if you've got it.
++ */
++extern int DWC_VSNPRINTF(char *str, int size, char *format, va_list args);
++#define dwc_vsnprintf DWC_VSNPRINTF
++
++/**
++ * printf() clone.  Just call printf if you've go it.
++ */
++extern void DWC_PRINTF(char *format, ...)
++/* This provides compiler level static checking of the parameters if you're
++ * using GCC. */
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 1, 2)));
++#else
++	;
++#endif
++#define dwc_printf DWC_PRINTF
++
++/**
++ * sprintf() clone.  Just call sprintf if you've got it.
++ */
++extern int DWC_SPRINTF(char *string, char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 2, 3)));
++#else
++	;
++#endif
++#define dwc_sprintf DWC_SPRINTF
++
++/**
++ * snprintf() clone.  Just call snprintf if you've got it.
++ */
++extern int DWC_SNPRINTF(char *string, int size, char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 3, 4)));
++#else
++	;
++#endif
++#define dwc_snprintf DWC_SNPRINTF
++
++/**
++ * Prints a WARNING message.  On systems that don't differentiate between
++ * warnings and regular log messages, just print it.  Indicates that something
++ * may be wrong with the driver.  Works like printf().
++ *
++ * Use the DWC_WARN macro to call this function.
++ */
++extern void __DWC_WARN(char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 1, 2)));
++#else
++	;
++#endif
++
++/**
++ * Prints an error message.  On systems that don't differentiate between errors
++ * and regular log messages, just print it.  Indicates that something went wrong
++ * with the driver.  Works like printf().
++ *
++ * Use the DWC_ERROR macro to call this function.
++ */
++extern void __DWC_ERROR(char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 1, 2)));
++#else
++	;
++#endif
++
++/**
++ * Prints an exception error message and takes some user-defined action such as
++ * print out a backtrace or trigger a breakpoint.  Indicates that something went
++ * abnormally wrong with the driver such as programmer error, or other
++ * exceptional condition.  It should not be ignored so even on systems without
++ * printing capability, some action should be taken to notify the developer of
++ * it.  Works like printf().
++ */
++extern void DWC_EXCEPTION(char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 1, 2)));
++#else
++	;
++#endif
++#define dwc_exception DWC_EXCEPTION
++
++#ifndef DWC_OTG_DEBUG_LEV
++#define DWC_OTG_DEBUG_LEV 0
++#endif
++
++#ifdef DEBUG
++/**
++ * Prints out a debug message.  Used for logging/trace messages.
++ *
++ * Use the DWC_DEBUG macro to call this function
++ */
++extern void __DWC_DEBUG(char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 1, 2)));
++#else
++	;
++#endif
++#else
++#define __DWC_DEBUG printk
++#endif
++
++/**
++ * Prints out a Debug message.
++ */
++#define DWC_DEBUG(_format, _args...) __DWC_DEBUG("DEBUG:%s:%s: " _format "\n", \
++						 __func__, dwc_irq(), ## _args)
++#define dwc_debug DWC_DEBUG
++/**
++ * Prints out a Debug message if enabled at compile time.
++ */
++#if DWC_OTG_DEBUG_LEV > 0
++#define DWC_DEBUGC(_format, _args...) DWC_DEBUG(_format, ##_args )
++#else
++#define DWC_DEBUGC(_format, _args...)
++#endif
++#define dwc_debugc DWC_DEBUGC
++/**
++ * Prints out an informative message.
++ */
++#define DWC_INFO(_format, _args...) DWC_PRINTF("INFO:%s: " _format "\n", \
++					       dwc_irq(), ## _args)
++#define dwc_info DWC_INFO
++/**
++ * Prints out an informative message if enabled at compile time.
++ */
++#if DWC_OTG_DEBUG_LEV > 1
++#define DWC_INFOC(_format, _args...) DWC_INFO(_format, ##_args )
++#else
++#define DWC_INFOC(_format, _args...)
++#endif
++#define dwc_infoc DWC_INFOC
++/**
++ * Prints out a warning message.
++ */
++#define DWC_WARN(_format, _args...) __DWC_WARN("WARN:%s:%s:%d: " _format "\n", \
++					dwc_irq(), __func__, __LINE__, ## _args)
++#define dwc_warn DWC_WARN
++/**
++ * Prints out an error message.
++ */
++#define DWC_ERROR(_format, _args...) __DWC_ERROR("ERROR:%s:%s:%d: " _format "\n", \
++					dwc_irq(), __func__, __LINE__, ## _args)
++#define dwc_error DWC_ERROR
++
++#define DWC_PROTO_ERROR(_format, _args...) __DWC_WARN("ERROR:%s:%s:%d: " _format "\n", \
++						dwc_irq(), __func__, __LINE__, ## _args)
++#define dwc_proto_error DWC_PROTO_ERROR
++
++#ifdef DEBUG
++/** Prints out a exception error message if the _expr expression fails.  Disabled
++ * if DEBUG is not enabled. */
++#define DWC_ASSERT(_expr, _format, _args...) do { \
++	if (!(_expr)) { DWC_EXCEPTION("%s:%s:%d: " _format "\n", dwc_irq(), \
++				      __FILE__, __LINE__, ## _args); } \
++	} while (0)
++#else
++#define DWC_ASSERT(_x...)
++#endif
++#define dwc_assert DWC_ASSERT
++
++
++/** @name Byte Ordering
++ * The following functions are for conversions between processor's byte ordering
++ * and specific ordering you want.
++ */
++
++/** Converts 32 bit data in CPU byte ordering to little endian. */
++extern uint32_t DWC_CPU_TO_LE32(uint32_t *p);
++#define dwc_cpu_to_le32 DWC_CPU_TO_LE32
++
++/** Converts 32 bit data in CPU byte orderint to big endian. */
++extern uint32_t DWC_CPU_TO_BE32(uint32_t *p);
++#define dwc_cpu_to_be32 DWC_CPU_TO_BE32
++
++/** Converts 32 bit little endian data to CPU byte ordering. */
++extern uint32_t DWC_LE32_TO_CPU(uint32_t *p);
++#define dwc_le32_to_cpu DWC_LE32_TO_CPU
++
++/** Converts 32 bit big endian data to CPU byte ordering. */
++extern uint32_t DWC_BE32_TO_CPU(uint32_t *p);
++#define dwc_be32_to_cpu DWC_BE32_TO_CPU
++
++/** Converts 16 bit data in CPU byte ordering to little endian. */
++extern uint16_t DWC_CPU_TO_LE16(uint16_t *p);
++#define dwc_cpu_to_le16 DWC_CPU_TO_LE16
++
++/** Converts 16 bit data in CPU byte orderint to big endian. */
++extern uint16_t DWC_CPU_TO_BE16(uint16_t *p);
++#define dwc_cpu_to_be16 DWC_CPU_TO_BE16
++
++/** Converts 16 bit little endian data to CPU byte ordering. */
++extern uint16_t DWC_LE16_TO_CPU(uint16_t *p);
++#define dwc_le16_to_cpu DWC_LE16_TO_CPU
++
++/** Converts 16 bit bi endian data to CPU byte ordering. */
++extern uint16_t DWC_BE16_TO_CPU(uint16_t *p);
++#define dwc_be16_to_cpu DWC_BE16_TO_CPU
++
++
++/** @name Register Read/Write
++ *
++ * The following six functions should be implemented to read/write registers of
++ * 32-bit and 64-bit sizes.  All modules use this to read/write register values.
++ * The reg value is a pointer to the register calculated from the void *base
++ * variable passed into the driver when it is started.  */
++
++#ifdef DWC_LINUX
++/* Linux doesn't need any extra parameters for register read/write, so we
++ * just throw away the IO context parameter.
++ */
++/** Reads the content of a 32-bit register. */
++extern uint32_t DWC_READ_REG32(uint32_t volatile *reg);
++#define dwc_read_reg32(_ctx_,_reg_) DWC_READ_REG32(_reg_)
++
++/** Reads the content of a 64-bit register. */
++extern uint64_t DWC_READ_REG64(uint64_t volatile *reg);
++#define dwc_read_reg64(_ctx_,_reg_) DWC_READ_REG64(_reg_)
++
++/** Writes to a 32-bit register. */
++extern void DWC_WRITE_REG32(uint32_t volatile *reg, uint32_t value);
++#define dwc_write_reg32(_ctx_,_reg_,_val_) DWC_WRITE_REG32(_reg_, _val_)
++
++/** Writes to a 64-bit register. */
++extern void DWC_WRITE_REG64(uint64_t volatile *reg, uint64_t value);
++#define dwc_write_reg64(_ctx_,_reg_,_val_) DWC_WRITE_REG64(_reg_, _val_)
++
++/**
++ * Modify bit values in a register.  Using the
++ * algorithm: (reg_contents & ~clear_mask) | set_mask.
++ */
++extern void DWC_MODIFY_REG32(uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask);
++#define dwc_modify_reg32(_ctx_,_reg_,_cmsk_,_smsk_) DWC_MODIFY_REG32(_reg_,_cmsk_,_smsk_)
++extern void DWC_MODIFY_REG64(uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask);
++#define dwc_modify_reg64(_ctx_,_reg_,_cmsk_,_smsk_) DWC_MODIFY_REG64(_reg_,_cmsk_,_smsk_)
++
++#endif	/* DWC_LINUX */
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++typedef struct dwc_ioctx {
++	struct device *dev;
++	bus_space_tag_t iot;
++	bus_space_handle_t ioh;
++} dwc_ioctx_t;
++
++/** BSD needs two extra parameters for register read/write, so we pass
++ * them in using the IO context parameter.
++ */
++/** Reads the content of a 32-bit register. */
++extern uint32_t DWC_READ_REG32(void *io_ctx, uint32_t volatile *reg);
++#define dwc_read_reg32 DWC_READ_REG32
++
++/** Reads the content of a 64-bit register. */
++extern uint64_t DWC_READ_REG64(void *io_ctx, uint64_t volatile *reg);
++#define dwc_read_reg64 DWC_READ_REG64
++
++/** Writes to a 32-bit register. */
++extern void DWC_WRITE_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t value);
++#define dwc_write_reg32 DWC_WRITE_REG32
++
++/** Writes to a 64-bit register. */
++extern void DWC_WRITE_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t value);
++#define dwc_write_reg64 DWC_WRITE_REG64
++
++/**
++ * Modify bit values in a register.  Using the
++ * algorithm: (reg_contents & ~clear_mask) | set_mask.
++ */
++extern void DWC_MODIFY_REG32(void *io_ctx, uint32_t volatile *reg, uint32_t clear_mask, uint32_t set_mask);
++#define dwc_modify_reg32 DWC_MODIFY_REG32
++extern void DWC_MODIFY_REG64(void *io_ctx, uint64_t volatile *reg, uint64_t clear_mask, uint64_t set_mask);
++#define dwc_modify_reg64 DWC_MODIFY_REG64
++
++#endif	/* DWC_FREEBSD || DWC_NETBSD */
++
++/** @cond */
++
++/** @name Some convenience MACROS used internally.  Define DWC_DEBUG_REGS to log the
++ * register writes. */
++
++#ifdef DWC_LINUX
++
++# ifdef DWC_DEBUG_REGS
++
++#define dwc_define_read_write_reg_n(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg##_n(_container_type *container, int num) { \
++	return DWC_READ_REG32(&container->regs->_reg[num]); \
++} \
++static inline void dwc_write_##_reg##_n(_container_type *container, int num, uint32_t data) { \
++	DWC_DEBUG("WRITING %8s[%d]: %p: %08x", #_reg, num, \
++		  &(((uint32_t*)container->regs->_reg)[num]), data); \
++	DWC_WRITE_REG32(&(((uint32_t*)container->regs->_reg)[num]), data); \
++}
++
++#define dwc_define_read_write_reg(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg(_container_type *container) { \
++	return DWC_READ_REG32(&container->regs->_reg); \
++} \
++static inline void dwc_write_##_reg(_container_type *container, uint32_t data) { \
++	DWC_DEBUG("WRITING %11s: %p: %08x", #_reg, &container->regs->_reg, data); \
++	DWC_WRITE_REG32(&container->regs->_reg, data); \
++}
++
++# else	/* DWC_DEBUG_REGS */
++
++#define dwc_define_read_write_reg_n(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg##_n(_container_type *container, int num) { \
++	return DWC_READ_REG32(&container->regs->_reg[num]); \
++} \
++static inline void dwc_write_##_reg##_n(_container_type *container, int num, uint32_t data) { \
++	DWC_WRITE_REG32(&(((uint32_t*)container->regs->_reg)[num]), data); \
++}
++
++#define dwc_define_read_write_reg(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg(_container_type *container) { \
++	return DWC_READ_REG32(&container->regs->_reg); \
++} \
++static inline void dwc_write_##_reg(_container_type *container, uint32_t data) { \
++	DWC_WRITE_REG32(&container->regs->_reg, data); \
++}
++
++# endif	/* DWC_DEBUG_REGS */
++
++#endif	/* DWC_LINUX */
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++
++# ifdef DWC_DEBUG_REGS
++
++#define dwc_define_read_write_reg_n(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg##_n(void *io_ctx, _container_type *container, int num) { \
++	return DWC_READ_REG32(io_ctx, &container->regs->_reg[num]); \
++} \
++static inline void dwc_write_##_reg##_n(void *io_ctx, _container_type *container, int num, uint32_t data) { \
++	DWC_DEBUG("WRITING %8s[%d]: %p: %08x", #_reg, num, \
++		  &(((uint32_t*)container->regs->_reg)[num]), data); \
++	DWC_WRITE_REG32(io_ctx, &(((uint32_t*)container->regs->_reg)[num]), data); \
++}
++
++#define dwc_define_read_write_reg(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg(void *io_ctx, _container_type *container) { \
++	return DWC_READ_REG32(io_ctx, &container->regs->_reg); \
++} \
++static inline void dwc_write_##_reg(void *io_ctx, _container_type *container, uint32_t data) { \
++	DWC_DEBUG("WRITING %11s: %p: %08x", #_reg, &container->regs->_reg, data); \
++	DWC_WRITE_REG32(io_ctx, &container->regs->_reg, data); \
++}
++
++# else	/* DWC_DEBUG_REGS */
++
++#define dwc_define_read_write_reg_n(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg##_n(void *io_ctx, _container_type *container, int num) { \
++	return DWC_READ_REG32(io_ctx, &container->regs->_reg[num]); \
++} \
++static inline void dwc_write_##_reg##_n(void *io_ctx, _container_type *container, int num, uint32_t data) { \
++	DWC_WRITE_REG32(io_ctx, &(((uint32_t*)container->regs->_reg)[num]), data); \
++}
++
++#define dwc_define_read_write_reg(_reg,_container_type) \
++static inline uint32_t dwc_read_##_reg(void *io_ctx, _container_type *container) { \
++	return DWC_READ_REG32(io_ctx, &container->regs->_reg); \
++} \
++static inline void dwc_write_##_reg(void *io_ctx, _container_type *container, uint32_t data) { \
++	DWC_WRITE_REG32(io_ctx, &container->regs->_reg, data); \
++}
++
++# endif	/* DWC_DEBUG_REGS */
++
++#endif	/* DWC_FREEBSD || DWC_NETBSD */
++
++/** @endcond */
++
++
++#ifdef DWC_CRYPTOLIB
++/** @name Crypto Functions
++ *
++ * These are the low-level cryptographic functions used by the driver. */
++
++/** Perform AES CBC */
++extern int DWC_AES_CBC(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t iv[16], uint8_t *out);
++#define dwc_aes_cbc DWC_AES_CBC
++
++/** Fill the provided buffer with random bytes.  These should be cryptographic grade random numbers. */
++extern void DWC_RANDOM_BYTES(uint8_t *buffer, uint32_t length);
++#define dwc_random_bytes DWC_RANDOM_BYTES
++
++/** Perform the SHA-256 hash function */
++extern int DWC_SHA256(uint8_t *message, uint32_t len, uint8_t *out);
++#define dwc_sha256 DWC_SHA256
++
++/** Calculated the HMAC-SHA256 */
++extern int DWC_HMAC_SHA256(uint8_t *message, uint32_t messagelen, uint8_t *key, uint32_t keylen, uint8_t *out);
++#define dwc_hmac_sha256 DWC_HMAC_SHA256
++
++#endif	/* DWC_CRYPTOLIB */
++
++
++/** @name Memory Allocation
++ *
++ * These function provide access to memory allocation.  There are only 2 DMA
++ * functions and 3 Regular memory functions that need to be implemented.  None
++ * of the memory debugging routines need to be implemented.  The allocation
++ * routines all ZERO the contents of the memory.
++ *
++ * Defining DWC_DEBUG_MEMORY turns on memory debugging and statistic gathering.
++ * This checks for memory leaks, keeping track of alloc/free pairs.  It also
++ * keeps track of how much memory the driver is using at any given time. */
++
++#define DWC_PAGE_SIZE 4096
++#define DWC_PAGE_OFFSET(addr) (((uint32_t)addr) & 0xfff)
++#define DWC_PAGE_ALIGNED(addr) ((((uint32_t)addr) & 0xfff) == 0)
++
++#define DWC_INVALID_DMA_ADDR 0x0
++
++#ifdef DWC_LINUX
++/** Type for a DMA address */
++typedef dma_addr_t dwc_dma_t;
++#endif
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++typedef bus_addr_t dwc_dma_t;
++#endif
++
++#ifdef DWC_FREEBSD
++typedef struct dwc_dmactx {
++	struct device *dev;
++	bus_dma_tag_t dma_tag;
++	bus_dmamap_t dma_map;
++	bus_addr_t dma_paddr;
++	void *dma_vaddr;
++} dwc_dmactx_t;
++#endif
++
++#ifdef DWC_NETBSD
++typedef struct dwc_dmactx {
++	struct device *dev;
++	bus_dma_tag_t dma_tag;
++	bus_dmamap_t dma_map;
++	bus_dma_segment_t segs[1];
++	int nsegs;
++	bus_addr_t dma_paddr;
++	void *dma_vaddr;
++} dwc_dmactx_t;
++#endif
++
++/* @todo these functions will be added in the future */
++#if 0
++/**
++ * Creates a DMA pool from which you can allocate DMA buffers.  Buffers
++ * allocated from this pool will be guaranteed to meet the size, alignment, and
++ * boundary requirements specified.
++ *
++ * @param[in] size Specifies the size of the buffers that will be allocated from
++ * this pool.
++ * @param[in] align Specifies the byte alignment requirements of the buffers
++ * allocated from this pool.  Must be a power of 2.
++ * @param[in] boundary Specifies the N-byte boundary that buffers allocated from
++ * this pool must not cross.
++ *
++ * @returns A pointer to an internal opaque structure which is not to be
++ * accessed outside of these library functions.  Use this handle to specify
++ * which pools to allocate/free DMA buffers from and also to destroy the pool,
++ * when you are done with it.
++ */
++extern dwc_pool_t *DWC_DMA_POOL_CREATE(uint32_t size, uint32_t align, uint32_t boundary);
++
++/**
++ * Destroy a DMA pool.  All buffers allocated from that pool must be freed first.
++ */
++extern void DWC_DMA_POOL_DESTROY(dwc_pool_t *pool);
++
++/**
++ * Allocate a buffer from the specified DMA pool and zeros its contents.
++ */
++extern void *DWC_DMA_POOL_ALLOC(dwc_pool_t *pool, uint64_t *dma_addr);
++
++/**
++ * Free a previously allocated buffer from the DMA pool.
++ */
++extern void DWC_DMA_POOL_FREE(dwc_pool_t *pool, void *vaddr, void *daddr);
++#endif
++
++/** Allocates a DMA capable buffer and zeroes its contents. */
++extern void *__DWC_DMA_ALLOC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr);
++
++/** Allocates a DMA capable buffer and zeroes its contents in atomic contest */
++extern void *__DWC_DMA_ALLOC_ATOMIC(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr);
++
++/** Frees a previously allocated buffer. */
++extern void __DWC_DMA_FREE(void *dma_ctx, uint32_t size, void *virt_addr, dwc_dma_t dma_addr);
++
++/** Allocates a block of memory and zeroes its contents. */
++extern void *__DWC_ALLOC(void *mem_ctx, uint32_t size);
++
++/** Allocates a block of memory and zeroes its contents, in an atomic manner
++ * which can be used inside interrupt context.  The size should be sufficiently
++ * small, a few KB at most, such that failures are not likely to occur.  Can just call
++ * __DWC_ALLOC if it is atomic. */
++extern void *__DWC_ALLOC_ATOMIC(void *mem_ctx, uint32_t size);
++
++/** Frees a previously allocated buffer. */
++extern void __DWC_FREE(void *mem_ctx, void *addr);
++
++#ifndef DWC_DEBUG_MEMORY
++
++#define DWC_ALLOC(_size_) __DWC_ALLOC(NULL, _size_)
++#define DWC_ALLOC_ATOMIC(_size_) __DWC_ALLOC_ATOMIC(NULL, _size_)
++#define DWC_FREE(_addr_) __DWC_FREE(NULL, _addr_)
++
++# ifdef DWC_LINUX
++#define DWC_DMA_ALLOC(_dev, _size_, _dma_) __DWC_DMA_ALLOC(_dev, _size_, _dma_)
++#define DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_) __DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_)
++#define DWC_DMA_FREE(_dev, _size_,_virt_, _dma_) __DWC_DMA_FREE(_dev, _size_, _virt_, _dma_)
++# endif
++
++# if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++#define DWC_DMA_ALLOC __DWC_DMA_ALLOC
++#define DWC_DMA_FREE __DWC_DMA_FREE
++# endif
++extern void *dwc_dma_alloc_atomic_debug(uint32_t size, dwc_dma_t *dma_addr, char const *func, int line);
++
++#else	/* DWC_DEBUG_MEMORY */
++
++extern void *dwc_alloc_debug(void *mem_ctx, uint32_t size, char const *func, int line);
++extern void *dwc_alloc_atomic_debug(void *mem_ctx, uint32_t size, char const *func, int line);
++extern void dwc_free_debug(void *mem_ctx, void *addr, char const *func, int line);
++extern void *dwc_dma_alloc_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr,
++				 char const *func, int line);
++extern void *dwc_dma_alloc_atomic_debug(void *dma_ctx, uint32_t size, dwc_dma_t *dma_addr,
++				char const *func, int line);
++extern void dwc_dma_free_debug(void *dma_ctx, uint32_t size, void *virt_addr,
++			       dwc_dma_t dma_addr, char const *func, int line);
++
++extern int dwc_memory_debug_start(void *mem_ctx);
++extern void dwc_memory_debug_stop(void);
++extern void dwc_memory_debug_report(void);
++
++#define DWC_ALLOC(_size_) dwc_alloc_debug(NULL, _size_, __func__, __LINE__)
++#define DWC_ALLOC_ATOMIC(_size_) dwc_alloc_atomic_debug(NULL, _size_, \
++							__func__, __LINE__)
++#define DWC_FREE(_addr_) dwc_free_debug(NULL, _addr_, __func__, __LINE__)
++
++# ifdef DWC_LINUX
++#define DWC_DMA_ALLOC(_dev, _size_, _dma_) \
++	dwc_dma_alloc_debug(_dev, _size_, _dma_, __func__, __LINE__)
++#define DWC_DMA_ALLOC_ATOMIC(_dev, _size_, _dma_) \
++	dwc_dma_alloc_atomic_debug(_dev, _size_, _dma_, __func__, __LINE__)
++#define DWC_DMA_FREE(_dev, _size_, _virt_, _dma_) \
++	dwc_dma_free_debug(_dev, _size_, _virt_, _dma_, __func__, __LINE__)
++# endif
++
++# if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++#define DWC_DMA_ALLOC(_ctx_,_size_,_dma_) dwc_dma_alloc_debug(_ctx_, _size_, \
++						_dma_, __func__, __LINE__)
++#define DWC_DMA_FREE(_ctx_,_size_,_virt_,_dma_) dwc_dma_free_debug(_ctx_, _size_, \
++						 _virt_, _dma_, __func__, __LINE__)
++# endif
++
++#endif /* DWC_DEBUG_MEMORY */
++
++#define dwc_alloc(_ctx_,_size_) DWC_ALLOC(_size_)
++#define dwc_alloc_atomic(_ctx_,_size_) DWC_ALLOC_ATOMIC(_size_)
++#define dwc_free(_ctx_,_addr_) DWC_FREE(_addr_)
++
++#ifdef DWC_LINUX
++/* Linux doesn't need any extra parameters for DMA buffer allocation, so we
++ * just throw away the DMA context parameter.
++ */
++#define dwc_dma_alloc(_ctx_,_size_,_dma_) DWC_DMA_ALLOC(_size_, _dma_)
++#define dwc_dma_alloc_atomic(_ctx_,_size_,_dma_) DWC_DMA_ALLOC_ATOMIC(_size_, _dma_)
++#define dwc_dma_free(_ctx_,_size_,_virt_,_dma_) DWC_DMA_FREE(_size_, _virt_, _dma_)
++#endif
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++/** BSD needs several extra parameters for DMA buffer allocation, so we pass
++ * them in using the DMA context parameter.
++ */
++#define dwc_dma_alloc DWC_DMA_ALLOC
++#define dwc_dma_free DWC_DMA_FREE
++#endif
++
++
++/** @name Memory and String Processing */
++
++/** memset() clone */
++extern void *DWC_MEMSET(void *dest, uint8_t byte, uint32_t size);
++#define dwc_memset DWC_MEMSET
++
++/** memcpy() clone */
++extern void *DWC_MEMCPY(void *dest, void const *src, uint32_t size);
++#define dwc_memcpy DWC_MEMCPY
++
++/** memmove() clone */
++extern void *DWC_MEMMOVE(void *dest, void *src, uint32_t size);
++#define dwc_memmove DWC_MEMMOVE
++
++/** memcmp() clone */
++extern int DWC_MEMCMP(void *m1, void *m2, uint32_t size);
++#define dwc_memcmp DWC_MEMCMP
++
++/** strcmp() clone */
++extern int DWC_STRCMP(void *s1, void *s2);
++#define dwc_strcmp DWC_STRCMP
++
++/** strncmp() clone */
++extern int DWC_STRNCMP(void *s1, void *s2, uint32_t size);
++#define dwc_strncmp DWC_STRNCMP
++
++/** strlen() clone, for NULL terminated ASCII strings */
++extern int DWC_STRLEN(char const *str);
++#define dwc_strlen DWC_STRLEN
++
++/** strcpy() clone, for NULL terminated ASCII strings */
++extern char *DWC_STRCPY(char *to, const char *from);
++#define dwc_strcpy DWC_STRCPY
++
++/** strdup() clone.  If you wish to use memory allocation debugging, this
++ * implementation of strdup should use the DWC_* memory routines instead of
++ * calling a predefined strdup.  Otherwise the memory allocated by this routine
++ * will not be seen by the debugging routines. */
++extern char *DWC_STRDUP(char const *str);
++#define dwc_strdup(_ctx_,_str_) DWC_STRDUP(_str_)
++
++/** NOT an atoi() clone.  Read the description carefully.  Returns an integer
++ * converted from the string str in base 10 unless the string begins with a "0x"
++ * in which case it is base 16.  String must be a NULL terminated sequence of
++ * ASCII characters and may optionally begin with whitespace, a + or -, and a
++ * "0x" prefix if base 16.  The remaining characters must be valid digits for
++ * the number and end with a NULL character.  If any invalid characters are
++ * encountered or it returns with a negative error code and the results of the
++ * conversion are undefined.  On sucess it returns 0.  Overflow conditions are
++ * undefined.  An example implementation using atoi() can be referenced from the
++ * Linux implementation. */
++extern int DWC_ATOI(const char *str, int32_t *value);
++#define dwc_atoi DWC_ATOI
++
++/** Same as above but for unsigned. */
++extern int DWC_ATOUI(const char *str, uint32_t *value);
++#define dwc_atoui DWC_ATOUI
++
++#ifdef DWC_UTFLIB
++/** This routine returns a UTF16LE unicode encoded string from a UTF8 string. */
++extern int DWC_UTF8_TO_UTF16LE(uint8_t const *utf8string, uint16_t *utf16string, unsigned len);
++#define dwc_utf8_to_utf16le DWC_UTF8_TO_UTF16LE
++#endif
++
++
++/** @name Wait queues
++ *
++ * Wait queues provide a means of synchronizing between threads or processes.  A
++ * process can block on a waitq if some condition is not true, waiting for it to
++ * become true.  When the waitq is triggered all waiting process will get
++ * unblocked and the condition will be check again.  Waitqs should be triggered
++ * every time a condition can potentially change.*/
++struct dwc_waitq;
++
++/** Type for a waitq */
++typedef struct dwc_waitq dwc_waitq_t;
++
++/** The type of waitq condition callback function.  This is called every time
++ * condition is evaluated. */
++typedef int (*dwc_waitq_condition_t)(void *data);
++
++/** Allocate a waitq */
++extern dwc_waitq_t *DWC_WAITQ_ALLOC(void);
++#define dwc_waitq_alloc(_ctx_) DWC_WAITQ_ALLOC()
++
++/** Free a waitq */
++extern void DWC_WAITQ_FREE(dwc_waitq_t *wq);
++#define dwc_waitq_free DWC_WAITQ_FREE
++
++/** Check the condition and if it is false, block on the waitq.  When unblocked, check the
++ * condition again.  The function returns when the condition becomes true.  The return value
++ * is 0 on condition true, DWC_WAITQ_ABORTED on abort or killed, or DWC_WAITQ_UNKNOWN on error. */
++extern int32_t DWC_WAITQ_WAIT(dwc_waitq_t *wq, dwc_waitq_condition_t cond, void *data);
++#define dwc_waitq_wait DWC_WAITQ_WAIT
++
++/** Check the condition and if it is false, block on the waitq.  When unblocked,
++ * check the condition again.  The function returns when the condition become
++ * true or the timeout has passed.  The return value is 0 on condition true or
++ * DWC_TIMED_OUT on timeout, or DWC_WAITQ_ABORTED, or DWC_WAITQ_UNKNOWN on
++ * error. */
++extern int32_t DWC_WAITQ_WAIT_TIMEOUT(dwc_waitq_t *wq, dwc_waitq_condition_t cond,
++				      void *data, int32_t msecs);
++#define dwc_waitq_wait_timeout DWC_WAITQ_WAIT_TIMEOUT
++
++/** Trigger a waitq, unblocking all processes.  This should be called whenever a condition
++ * has potentially changed. */
++extern void DWC_WAITQ_TRIGGER(dwc_waitq_t *wq);
++#define dwc_waitq_trigger DWC_WAITQ_TRIGGER
++
++/** Unblock all processes waiting on the waitq with an ABORTED result. */
++extern void DWC_WAITQ_ABORT(dwc_waitq_t *wq);
++#define dwc_waitq_abort DWC_WAITQ_ABORT
++
++
++/** @name Threads
++ *
++ * A thread must be explicitly stopped.  It must check DWC_THREAD_SHOULD_STOP
++ * whenever it is woken up, and then return.  The DWC_THREAD_STOP function
++ * returns the value from the thread.
++ */
++
++struct dwc_thread;
++
++/** Type for a thread */
++typedef struct dwc_thread dwc_thread_t;
++
++/** The thread function */
++typedef int (*dwc_thread_function_t)(void *data);
++
++/** Create a thread and start it running the thread_function.  Returns a handle
++ * to the thread */
++extern dwc_thread_t *DWC_THREAD_RUN(dwc_thread_function_t func, char *name, void *data);
++#define dwc_thread_run(_ctx_,_func_,_name_,_data_) DWC_THREAD_RUN(_func_, _name_, _data_)
++
++/** Stops a thread.  Return the value returned by the thread.  Or will return
++ * DWC_ABORT if the thread never started. */
++extern int DWC_THREAD_STOP(dwc_thread_t *thread);
++#define dwc_thread_stop DWC_THREAD_STOP
++
++/** Signifies to the thread that it must stop. */
++#ifdef DWC_LINUX
++/* Linux doesn't need any parameters for kthread_should_stop() */
++extern dwc_bool_t DWC_THREAD_SHOULD_STOP(void);
++#define dwc_thread_should_stop(_thrd_) DWC_THREAD_SHOULD_STOP()
++
++/* No thread_exit function in Linux */
++#define dwc_thread_exit(_thrd_)
++#endif
++
++#if defined(DWC_FREEBSD) || defined(DWC_NETBSD)
++/** BSD needs the thread pointer for kthread_suspend_check() */
++extern dwc_bool_t DWC_THREAD_SHOULD_STOP(dwc_thread_t *thread);
++#define dwc_thread_should_stop DWC_THREAD_SHOULD_STOP
++
++/** The thread must call this to exit. */
++extern void DWC_THREAD_EXIT(dwc_thread_t *thread);
++#define dwc_thread_exit DWC_THREAD_EXIT
++#endif
++
++
++/** @name Work queues
++ *
++ * Workqs are used to queue a callback function to be called at some later time,
++ * in another thread. */
++struct dwc_workq;
++
++/** Type for a workq */
++typedef struct dwc_workq dwc_workq_t;
++
++/** The type of the callback function to be called. */
++typedef void (*dwc_work_callback_t)(void *data);
++
++/** Allocate a workq */
++extern dwc_workq_t *DWC_WORKQ_ALLOC(char *name);
++#define dwc_workq_alloc(_ctx_,_name_) DWC_WORKQ_ALLOC(_name_)
++
++/** Free a workq.  All work must be completed before being freed. */
++extern void DWC_WORKQ_FREE(dwc_workq_t *workq);
++#define dwc_workq_free DWC_WORKQ_FREE
++
++/** Schedule a callback on the workq, passing in data.  The function will be
++ * scheduled at some later time. */
++extern void DWC_WORKQ_SCHEDULE(dwc_workq_t *workq, dwc_work_callback_t cb,
++			       void *data, char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 4, 5)));
++#else
++	;
++#endif
++#define dwc_workq_schedule DWC_WORKQ_SCHEDULE
++
++/** Schedule a callback on the workq, that will be called until at least
++ * given number miliseconds have passed. */
++extern void DWC_WORKQ_SCHEDULE_DELAYED(dwc_workq_t *workq, dwc_work_callback_t cb,
++				       void *data, uint32_t time, char *format, ...)
++#ifdef __GNUC__
++	__attribute__ ((format(printf, 5, 6)));
++#else
++	;
++#endif
++#define dwc_workq_schedule_delayed DWC_WORKQ_SCHEDULE_DELAYED
++
++/** The number of processes in the workq */
++extern int DWC_WORKQ_PENDING(dwc_workq_t *workq);
++#define dwc_workq_pending DWC_WORKQ_PENDING
++
++/** Blocks until all the work in the workq is complete or timed out.  Returns <
++ * 0 on timeout. */
++extern int DWC_WORKQ_WAIT_WORK_DONE(dwc_workq_t *workq, int timeout);
++#define dwc_workq_wait_work_done DWC_WORKQ_WAIT_WORK_DONE
++
++
++/** @name Tasklets
++ *
++ */
++struct dwc_tasklet;
++
++/** Type for a tasklet */
++typedef struct dwc_tasklet dwc_tasklet_t;
++
++/** The type of the callback function to be called */
++typedef void (*dwc_tasklet_callback_t)(void *data);
++
++/** Allocates a tasklet */
++extern dwc_tasklet_t *DWC_TASK_ALLOC(char *name, dwc_tasklet_callback_t cb, void *data);
++#define dwc_task_alloc(_ctx_,_name_,_cb_,_data_) DWC_TASK_ALLOC(_name_, _cb_, _data_)
++
++/** Frees a tasklet */
++extern void DWC_TASK_FREE(dwc_tasklet_t *task);
++#define dwc_task_free DWC_TASK_FREE
++
++/** Schedules a tasklet to run */
++extern void DWC_TASK_SCHEDULE(dwc_tasklet_t *task);
++#define dwc_task_schedule DWC_TASK_SCHEDULE
++
++extern void DWC_TASK_HI_SCHEDULE(dwc_tasklet_t *task);
++#define dwc_task_hi_schedule DWC_TASK_HI_SCHEDULE
++
++/** @name Timer
++ *
++ * Callbacks must be small and atomic.
++ */
++struct dwc_timer;
++
++/** Type for a timer */
++typedef struct dwc_timer dwc_timer_t;
++
++/** The type of the callback function to be called */
++typedef void (*dwc_timer_callback_t)(void *data);
++
++/** Allocates a timer */
++extern dwc_timer_t *DWC_TIMER_ALLOC(char *name, dwc_timer_callback_t cb, void *data);
++#define dwc_timer_alloc(_ctx_,_name_,_cb_,_data_) DWC_TIMER_ALLOC(_name_,_cb_,_data_)
++
++/** Frees a timer */
++extern void DWC_TIMER_FREE(dwc_timer_t *timer);
++#define dwc_timer_free DWC_TIMER_FREE
++
++/** Schedules the timer to run at time ms from now.  And will repeat at every
++ * repeat_interval msec therafter
++ *
++ * Modifies a timer that is still awaiting execution to a new expiration time.
++ * The mod_time is added to the old time.  */
++extern void DWC_TIMER_SCHEDULE(dwc_timer_t *timer, uint32_t time);
++#define dwc_timer_schedule DWC_TIMER_SCHEDULE
++
++/** Disables the timer from execution. */
++extern void DWC_TIMER_CANCEL(dwc_timer_t *timer);
++#define dwc_timer_cancel DWC_TIMER_CANCEL
++
++
++/** @name Spinlocks
++ *
++ * These locks are used when the work between the lock/unlock is atomic and
++ * short.  Interrupts are also disabled during the lock/unlock and thus they are
++ * suitable to lock between interrupt/non-interrupt context.  They also lock
++ * between processes if you have multiple CPUs or Preemption.  If you don't have
++ * multiple CPUS or Preemption, then the you can simply implement the
++ * DWC_SPINLOCK and DWC_SPINUNLOCK to disable and enable interrupts.  Because
++ * the work between the lock/unlock is atomic, the process context will never
++ * change, and so you never have to lock between processes.  */
++
++struct dwc_spinlock;
++
++/** Type for a spinlock */
++typedef struct dwc_spinlock dwc_spinlock_t;
++
++/** Type for the 'flags' argument to spinlock funtions */
++typedef unsigned long dwc_irqflags_t;
++
++/** Returns an initialized lock variable.  This function should allocate and
++ * initialize the OS-specific data structure used for locking.  This data
++ * structure is to be used for the DWC_LOCK and DWC_UNLOCK functions and should
++ * be freed by the DWC_FREE_LOCK when it is no longer used.
++ *
++ * For Linux Spinlock Debugging make it macro because the debugging routines use
++ * the symbol name to determine recursive locking. Using a wrapper function
++ * makes it falsely think recursive locking occurs. */
++#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK)
++#define DWC_SPINLOCK_ALLOC_LINUX_DEBUG(lock) ({ \
++	lock = DWC_ALLOC(sizeof(spinlock_t)); \
++	if (lock) { \
++		spin_lock_init((spinlock_t *)lock); \
++	} \
++})
++#else
++extern dwc_spinlock_t *DWC_SPINLOCK_ALLOC(void);
++#define dwc_spinlock_alloc(_ctx_) DWC_SPINLOCK_ALLOC()
++#endif
++
++/** Frees an initialized lock variable. */
++extern void DWC_SPINLOCK_FREE(dwc_spinlock_t *lock);
++#define dwc_spinlock_free(_ctx_,_lock_) DWC_SPINLOCK_FREE(_lock_)
++
++/** Disables interrupts and blocks until it acquires the lock.
++ *
++ * @param lock Pointer to the spinlock.
++ * @param flags Unsigned long for irq flags storage.
++ */
++extern void DWC_SPINLOCK_IRQSAVE(dwc_spinlock_t *lock, dwc_irqflags_t *flags);
++#define dwc_spinlock_irqsave DWC_SPINLOCK_IRQSAVE
++
++/** Re-enables the interrupt and releases the lock.
++ *
++ * @param lock Pointer to the spinlock.
++ * @param flags Unsigned long for irq flags storage.  Must be the same as was
++ * passed into DWC_LOCK.
++ */
++extern void DWC_SPINUNLOCK_IRQRESTORE(dwc_spinlock_t *lock, dwc_irqflags_t flags);
++#define dwc_spinunlock_irqrestore DWC_SPINUNLOCK_IRQRESTORE
++
++/** Blocks until it acquires the lock.
++ *
++ * @param lock Pointer to the spinlock.
++ */
++extern void DWC_SPINLOCK(dwc_spinlock_t *lock);
++#define dwc_spinlock DWC_SPINLOCK
++
++/** Releases the lock.
++ *
++ * @param lock Pointer to the spinlock.
++ */
++extern void DWC_SPINUNLOCK(dwc_spinlock_t *lock);
++#define dwc_spinunlock DWC_SPINUNLOCK
++
++
++/** @name Mutexes
++ *
++ * Unlike spinlocks Mutexes lock only between processes and the work between the
++ * lock/unlock CAN block, therefore it CANNOT be called from interrupt context.
++ */
++
++struct dwc_mutex;
++
++/** Type for a mutex */
++typedef struct dwc_mutex dwc_mutex_t;
++
++/* For Linux Mutex Debugging make it inline because the debugging routines use
++ * the symbol to determine recursive locking.  This makes it falsely think
++ * recursive locking occurs. */
++#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)
++#define DWC_MUTEX_ALLOC_LINUX_DEBUG(__mutexp) ({ \
++	__mutexp = (dwc_mutex_t *)DWC_ALLOC(sizeof(struct mutex)); \
++	mutex_init((struct mutex *)__mutexp); \
++})
++#endif
++
++/** Allocate a mutex */
++extern dwc_mutex_t *DWC_MUTEX_ALLOC(void);
++#define dwc_mutex_alloc(_ctx_) DWC_MUTEX_ALLOC()
++
++/* For memory leak debugging when using Linux Mutex Debugging */
++#if defined(DWC_LINUX) && defined(CONFIG_DEBUG_MUTEXES)
++#define DWC_MUTEX_FREE(__mutexp) do { \
++	mutex_destroy((struct mutex *)__mutexp); \
++	DWC_FREE(__mutexp); \
++} while(0)
++#else
++/** Free a mutex */
++extern void DWC_MUTEX_FREE(dwc_mutex_t *mutex);
++#define dwc_mutex_free(_ctx_,_mutex_) DWC_MUTEX_FREE(_mutex_)
++#endif
++
++/** Lock a mutex */
++extern void DWC_MUTEX_LOCK(dwc_mutex_t *mutex);
++#define dwc_mutex_lock DWC_MUTEX_LOCK
++
++/** Non-blocking lock returns 1 on successful lock. */
++extern int DWC_MUTEX_TRYLOCK(dwc_mutex_t *mutex);
++#define dwc_mutex_trylock DWC_MUTEX_TRYLOCK
++
++/** Unlock a mutex */
++extern void DWC_MUTEX_UNLOCK(dwc_mutex_t *mutex);
++#define dwc_mutex_unlock DWC_MUTEX_UNLOCK
++
++
++/** @name Time */
++
++/** Microsecond delay.
++ *
++ * @param usecs  Microseconds to delay.
++ */
++extern void DWC_UDELAY(uint32_t usecs);
++#define dwc_udelay DWC_UDELAY
++
++/** Millisecond delay.
++ *
++ * @param msecs  Milliseconds to delay.
++ */
++extern void DWC_MDELAY(uint32_t msecs);
++#define dwc_mdelay DWC_MDELAY
++
++/** Non-busy waiting.
++ * Sleeps for specified number of milliseconds.
++ *
++ * @param msecs Milliseconds to sleep.
++ */
++extern void DWC_MSLEEP(uint32_t msecs);
++#define dwc_msleep DWC_MSLEEP
++
++/**
++ * Returns number of milliseconds since boot.
++ */
++extern uint32_t DWC_TIME(void);
++#define dwc_time DWC_TIME
++
++
++
++
++/* @mainpage DWC Portability and Common Library
++ *
++ * This is the documentation for the DWC Portability and Common Library.
++ *
++ * @section intro Introduction
++ *
++ * The DWC Portability library consists of wrapper calls and data structures to
++ * all low-level functions which are typically provided by the OS.  The WUDEV
++ * driver uses only these functions.  In order to port the WUDEV driver, only
++ * the functions in this library need to be re-implemented, with the same
++ * behavior as documented here.
++ *
++ * The Common library consists of higher level functions, which rely only on
++ * calling the functions from the DWC Portability library.  These common
++ * routines are shared across modules.  Some of the common libraries need to be
++ * used directly by the driver programmer when porting WUDEV.  Such as the
++ * parameter and notification libraries.
++ *
++ * @section low Portability Library OS Wrapper Functions
++ *
++ * Any function starting with DWC and in all CAPS is a low-level OS-wrapper that
++ * needs to be implemented when porting, for example DWC_MUTEX_ALLOC().  All of
++ * these functions are included in the dwc_os.h file.
++ *
++ * There are many functions here covering a wide array of OS services.  Please
++ * see dwc_os.h for details, and implementation notes for each function.
++ *
++ * @section common Common Library Functions
++ *
++ * Any function starting with dwc and in all lowercase is a common library
++ * routine.  These functions have a portable implementation and do not need to
++ * be reimplemented when porting.  The common routines can be used by any
++ * driver, and some must be used by the end user to control the drivers.  For
++ * example, you must use the Parameter common library in order to set the
++ * parameters in the WUDEV module.
++ *
++ * The common libraries consist of the following:
++ *
++ * - Connection Contexts - Used internally and can be used by end-user.  See dwc_cc.h
++ * - Parameters - Used internally and can be used by end-user.  See dwc_params.h
++ * - Notifications - Used internally and can be used by end-user.  See dwc_notifier.h
++ * - Lists - Used internally and can be used by end-user.  See dwc_list.h
++ * - Memory Debugging - Used internally and can be used by end-user.  See dwc_os.h
++ * - Modpow - Used internally only.  See dwc_modpow.h
++ * - DH - Used internally only.  See dwc_dh.h
++ * - Crypto - Used internally only.  See dwc_crypto.h
++ *
++ *
++ * @section prereq Prerequistes For dwc_os.h
++ * @subsection types Data Types
++ *
++ * The dwc_os.h file assumes that several low-level data types are pre defined for the
++ * compilation environment.  These data types are:
++ *
++ * - uint8_t - unsigned 8-bit data type
++ * - int8_t - signed 8-bit data type
++ * - uint16_t - unsigned 16-bit data type
++ * - int16_t - signed 16-bit data type
++ * - uint32_t - unsigned 32-bit data type
++ * - int32_t - signed 32-bit data type
++ * - uint64_t - unsigned 64-bit data type
++ * - int64_t - signed 64-bit data type
++ *
++ * Ensure that these are defined before using dwc_os.h.  The easiest way to do
++ * that is to modify the top of the file to include the appropriate header.
++ * This is already done for the Linux environment.  If the DWC_LINUX macro is
++ * defined, the correct header will be added.  A standard header <stdint.h> is
++ * also used for environments where standard C headers are available.
++ *
++ * @subsection stdarg Variable Arguments
++ *
++ * Variable arguments are provided by a standard C header <stdarg.h>.  it is
++ * available in Both the Linux and ANSI C enviornment.  An equivalent must be
++ * provided in your enviornment in order to use dwc_os.h with the debug and
++ * tracing message functionality.
++ *
++ * @subsection thread Threading
++ *
++ * WUDEV Core must be run on an operating system that provides for multiple
++ * threads/processes.  Threading can be implemented in many ways, even in
++ * embedded systems without an operating system.  At the bare minimum, the
++ * system should be able to start any number of processes at any time to handle
++ * special work.  It need not be a pre-emptive system.  Process context can
++ * change upon a call to a blocking function.  The hardware interrupt context
++ * that calls the module's ISR() function must be differentiable from process
++ * context, even if your processes are impemented via a hardware interrupt.
++ * Further locking mechanism between process must exist (or be implemented), and
++ * process context must have a way to disable interrupts for a period of time to
++ * lock them out.  If all of this exists, the functions in dwc_os.h related to
++ * threading should be able to be implemented with the defined behavior.
++ *
++ */
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _DWC_OS_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_common_port/usb.h
+@@ -0,0 +1,946 @@
++/*
++ * Copyright (c) 1998 The NetBSD Foundation, Inc.
++ * All rights reserved.
++ *
++ * This code is derived from software contributed to The NetBSD Foundation
++ * by Lennart Augustsson (lennart@augustsson.net) at
++ * Carlstedt Research & Technology.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. All advertising materials mentioning features or use of this software
++ *    must display the following acknowledgement:
++ *        This product includes software developed by the NetBSD
++ *        Foundation, Inc. and its contributors.
++ * 4. Neither the name of The NetBSD Foundation nor the names of its
++ *    contributors may be used to endorse or promote products derived
++ *    from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
++ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
++ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
++ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
++ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
++ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
++ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
++ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
++ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++ * POSSIBILITY OF SUCH DAMAGE.
++ */
++
++/* Modified by Synopsys, Inc, 12/12/2007 */
++
++
++#ifndef _USB_H_
++#define _USB_H_
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/*
++ * The USB records contain some unaligned little-endian word
++ * components.  The U[SG]ETW macros take care of both the alignment
++ * and endian problem and should always be used to access non-byte
++ * values.
++ */
++typedef u_int8_t uByte;
++typedef u_int8_t uWord[2];
++typedef u_int8_t uDWord[4];
++
++#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
++#define UCONSTW(x)	{ (x) & 0xff, ((x) >> 8) & 0xff }
++#define UCONSTDW(x)	{ (x) & 0xff, ((x) >> 8) & 0xff, \
++			  ((x) >> 16) & 0xff, ((x) >> 24) & 0xff }
++
++#if 1
++#define UGETW(w) ((w)[0] | ((w)[1] << 8))
++#define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
++#define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24))
++#define USETDW(w,v) ((w)[0] = (u_int8_t)(v), \
++		     (w)[1] = (u_int8_t)((v) >> 8), \
++		     (w)[2] = (u_int8_t)((v) >> 16), \
++		     (w)[3] = (u_int8_t)((v) >> 24))
++#else
++/*
++ * On little-endian machines that can handle unanliged accesses
++ * (e.g. i386) these macros can be replaced by the following.
++ */
++#define UGETW(w) (*(u_int16_t *)(w))
++#define USETW(w,v) (*(u_int16_t *)(w) = (v))
++#define UGETDW(w) (*(u_int32_t *)(w))
++#define USETDW(w,v) (*(u_int32_t *)(w) = (v))
++#endif
++
++/*
++ * Macros for accessing UAS IU fields, which are big-endian
++ */
++#define IUSETW2(w,h,l) ((w)[0] = (u_int8_t)(h), (w)[1] = (u_int8_t)(l))
++#define IUCONSTW(x)	{ ((x) >> 8) & 0xff, (x) & 0xff }
++#define IUCONSTDW(x)	{ ((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \
++			((x) >> 8) & 0xff, (x) & 0xff }
++#define IUGETW(w) (((w)[0] << 8) | (w)[1])
++#define IUSETW(w,v) ((w)[0] = (u_int8_t)((v) >> 8), (w)[1] = (u_int8_t)(v))
++#define IUGETDW(w) (((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
++#define IUSETDW(w,v) ((w)[0] = (u_int8_t)((v) >> 24), \
++		      (w)[1] = (u_int8_t)((v) >> 16), \
++		      (w)[2] = (u_int8_t)((v) >> 8), \
++		      (w)[3] = (u_int8_t)(v))
++
++#define UPACKED __attribute__((__packed__))
++
++typedef struct {
++	uByte		bmRequestType;
++	uByte		bRequest;
++	uWord		wValue;
++	uWord		wIndex;
++	uWord		wLength;
++} UPACKED usb_device_request_t;
++
++#define UT_GET_DIR(a) ((a) & 0x80)
++#define UT_WRITE		0x00
++#define UT_READ			0x80
++
++#define UT_GET_TYPE(a) ((a) & 0x60)
++#define UT_STANDARD		0x00
++#define UT_CLASS		0x20
++#define UT_VENDOR		0x40
++
++#define UT_GET_RECIPIENT(a) ((a) & 0x1f)
++#define UT_DEVICE		0x00
++#define UT_INTERFACE		0x01
++#define UT_ENDPOINT		0x02
++#define UT_OTHER		0x03
++
++#define UT_READ_DEVICE		(UT_READ  | UT_STANDARD | UT_DEVICE)
++#define UT_READ_INTERFACE	(UT_READ  | UT_STANDARD | UT_INTERFACE)
++#define UT_READ_ENDPOINT	(UT_READ  | UT_STANDARD | UT_ENDPOINT)
++#define UT_WRITE_DEVICE		(UT_WRITE | UT_STANDARD | UT_DEVICE)
++#define UT_WRITE_INTERFACE	(UT_WRITE | UT_STANDARD | UT_INTERFACE)
++#define UT_WRITE_ENDPOINT	(UT_WRITE | UT_STANDARD | UT_ENDPOINT)
++#define UT_READ_CLASS_DEVICE	(UT_READ  | UT_CLASS | UT_DEVICE)
++#define UT_READ_CLASS_INTERFACE	(UT_READ  | UT_CLASS | UT_INTERFACE)
++#define UT_READ_CLASS_OTHER	(UT_READ  | UT_CLASS | UT_OTHER)
++#define UT_READ_CLASS_ENDPOINT	(UT_READ  | UT_CLASS | UT_ENDPOINT)
++#define UT_WRITE_CLASS_DEVICE	(UT_WRITE | UT_CLASS | UT_DEVICE)
++#define UT_WRITE_CLASS_INTERFACE (UT_WRITE | UT_CLASS | UT_INTERFACE)
++#define UT_WRITE_CLASS_OTHER	(UT_WRITE | UT_CLASS | UT_OTHER)
++#define UT_WRITE_CLASS_ENDPOINT	(UT_WRITE | UT_CLASS | UT_ENDPOINT)
++#define UT_READ_VENDOR_DEVICE	(UT_READ  | UT_VENDOR | UT_DEVICE)
++#define UT_READ_VENDOR_INTERFACE (UT_READ  | UT_VENDOR | UT_INTERFACE)
++#define UT_READ_VENDOR_OTHER	(UT_READ  | UT_VENDOR | UT_OTHER)
++#define UT_READ_VENDOR_ENDPOINT	(UT_READ  | UT_VENDOR | UT_ENDPOINT)
++#define UT_WRITE_VENDOR_DEVICE	(UT_WRITE | UT_VENDOR | UT_DEVICE)
++#define UT_WRITE_VENDOR_INTERFACE (UT_WRITE | UT_VENDOR | UT_INTERFACE)
++#define UT_WRITE_VENDOR_OTHER	(UT_WRITE | UT_VENDOR | UT_OTHER)
++#define UT_WRITE_VENDOR_ENDPOINT (UT_WRITE | UT_VENDOR | UT_ENDPOINT)
++
++/* Requests */
++#define UR_GET_STATUS		0x00
++#define  USTAT_STANDARD_STATUS  0x00
++#define  WUSTAT_WUSB_FEATURE    0x01
++#define  WUSTAT_CHANNEL_INFO    0x02
++#define  WUSTAT_RECEIVED_DATA   0x03
++#define  WUSTAT_MAS_AVAILABILITY 0x04
++#define  WUSTAT_CURRENT_TRANSMIT_POWER 0x05
++#define UR_CLEAR_FEATURE	0x01
++#define UR_SET_FEATURE		0x03
++#define UR_SET_AND_TEST_FEATURE 0x0c
++#define UR_SET_ADDRESS		0x05
++#define UR_GET_DESCRIPTOR	0x06
++#define  UDESC_DEVICE		0x01
++#define  UDESC_CONFIG		0x02
++#define  UDESC_STRING		0x03
++#define  UDESC_INTERFACE	0x04
++#define  UDESC_ENDPOINT		0x05
++#define  UDESC_SS_USB_COMPANION	0x30
++#define  UDESC_DEVICE_QUALIFIER	0x06
++#define  UDESC_OTHER_SPEED_CONFIGURATION 0x07
++#define  UDESC_INTERFACE_POWER	0x08
++#define  UDESC_OTG		0x09
++#define  WUDESC_SECURITY	0x0c
++#define  WUDESC_KEY		0x0d
++#define   WUD_GET_KEY_INDEX(_wValue_) ((_wValue_) & 0xf)
++#define   WUD_GET_KEY_TYPE(_wValue_) (((_wValue_) & 0x30) >> 4)
++#define    WUD_KEY_TYPE_ASSOC    0x01
++#define    WUD_KEY_TYPE_GTK      0x02
++#define   WUD_GET_KEY_ORIGIN(_wValue_) (((_wValue_) & 0x40) >> 6)
++#define    WUD_KEY_ORIGIN_HOST   0x00
++#define    WUD_KEY_ORIGIN_DEVICE 0x01
++#define  WUDESC_ENCRYPTION_TYPE	0x0e
++#define  WUDESC_BOS		0x0f
++#define  WUDESC_DEVICE_CAPABILITY 0x10
++#define  WUDESC_WIRELESS_ENDPOINT_COMPANION 0x11
++#define  UDESC_BOS		0x0f
++#define  UDESC_DEVICE_CAPABILITY 0x10
++#define  UDESC_CS_DEVICE	0x21	/* class specific */
++#define  UDESC_CS_CONFIG	0x22
++#define  UDESC_CS_STRING	0x23
++#define  UDESC_CS_INTERFACE	0x24
++#define  UDESC_CS_ENDPOINT	0x25
++#define  UDESC_HUB		0x29
++#define UR_SET_DESCRIPTOR	0x07
++#define UR_GET_CONFIG		0x08
++#define UR_SET_CONFIG		0x09
++#define UR_GET_INTERFACE	0x0a
++#define UR_SET_INTERFACE	0x0b
++#define UR_SYNCH_FRAME		0x0c
++#define WUR_SET_ENCRYPTION      0x0d
++#define WUR_GET_ENCRYPTION	0x0e
++#define WUR_SET_HANDSHAKE	0x0f
++#define WUR_GET_HANDSHAKE	0x10
++#define WUR_SET_CONNECTION	0x11
++#define WUR_SET_SECURITY_DATA	0x12
++#define WUR_GET_SECURITY_DATA	0x13
++#define WUR_SET_WUSB_DATA	0x14
++#define  WUDATA_DRPIE_INFO	0x01
++#define  WUDATA_TRANSMIT_DATA	0x02
++#define  WUDATA_TRANSMIT_PARAMS	0x03
++#define  WUDATA_RECEIVE_PARAMS	0x04
++#define  WUDATA_TRANSMIT_POWER	0x05
++#define WUR_LOOPBACK_DATA_WRITE	0x15
++#define WUR_LOOPBACK_DATA_READ	0x16
++#define WUR_SET_INTERFACE_DS	0x17
++
++/* Feature numbers */
++#define UF_ENDPOINT_HALT	0
++#define UF_DEVICE_REMOTE_WAKEUP	1
++#define UF_TEST_MODE		2
++#define UF_DEVICE_B_HNP_ENABLE	3
++#define UF_DEVICE_A_HNP_SUPPORT	4
++#define UF_DEVICE_A_ALT_HNP_SUPPORT 5
++#define WUF_WUSB		3
++#define  WUF_TX_DRPIE		0x0
++#define  WUF_DEV_XMIT_PACKET	0x1
++#define  WUF_COUNT_PACKETS	0x2
++#define  WUF_CAPTURE_PACKETS	0x3
++#define UF_FUNCTION_SUSPEND	0
++#define UF_U1_ENABLE		48
++#define UF_U2_ENABLE		49
++#define UF_LTM_ENABLE		50
++
++/* Class requests from the USB 2.0 hub spec, table 11-15 */
++#define UCR_CLEAR_HUB_FEATURE		(0x2000 | UR_CLEAR_FEATURE)
++#define UCR_CLEAR_PORT_FEATURE		(0x2300 | UR_CLEAR_FEATURE)
++#define UCR_GET_HUB_DESCRIPTOR		(0xa000 | UR_GET_DESCRIPTOR)
++#define UCR_GET_HUB_STATUS		(0xa000 | UR_GET_STATUS)
++#define UCR_GET_PORT_STATUS		(0xa300 | UR_GET_STATUS)
++#define UCR_SET_HUB_FEATURE		(0x2000 | UR_SET_FEATURE)
++#define UCR_SET_PORT_FEATURE		(0x2300 | UR_SET_FEATURE)
++#define UCR_SET_AND_TEST_PORT_FEATURE	(0xa300 | UR_SET_AND_TEST_FEATURE)
++
++#ifdef _MSC_VER
++#include <pshpack1.h>
++#endif
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uByte		bDescriptorSubtype;
++} UPACKED usb_descriptor_t;
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++} UPACKED usb_descriptor_header_t;
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uWord		bcdUSB;
++#define UD_USB_2_0		0x0200
++#define UD_IS_USB2(d) (UGETW((d)->bcdUSB) >= UD_USB_2_0)
++	uByte		bDeviceClass;
++	uByte		bDeviceSubClass;
++	uByte		bDeviceProtocol;
++	uByte		bMaxPacketSize;
++	/* The fields below are not part of the initial descriptor. */
++	uWord		idVendor;
++	uWord		idProduct;
++	uWord		bcdDevice;
++	uByte		iManufacturer;
++	uByte		iProduct;
++	uByte		iSerialNumber;
++	uByte		bNumConfigurations;
++} UPACKED usb_device_descriptor_t;
++#define USB_DEVICE_DESCRIPTOR_SIZE 18
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uWord		wTotalLength;
++	uByte		bNumInterface;
++	uByte		bConfigurationValue;
++	uByte		iConfiguration;
++#define UC_ATT_ONE		(1 << 7)	/* must be set */
++#define UC_ATT_SELFPOWER	(1 << 6)	/* self powered */
++#define UC_ATT_WAKEUP		(1 << 5)	/* can wakeup */
++#define UC_ATT_BATTERY		(1 << 4)	/* battery powered */
++	uByte		bmAttributes;
++#define UC_BUS_POWERED		0x80
++#define UC_SELF_POWERED		0x40
++#define UC_REMOTE_WAKEUP	0x20
++	uByte		bMaxPower; /* max current in 2 mA units */
++#define UC_POWER_FACTOR 2
++} UPACKED usb_config_descriptor_t;
++#define USB_CONFIG_DESCRIPTOR_SIZE 9
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uByte		bInterfaceNumber;
++	uByte		bAlternateSetting;
++	uByte		bNumEndpoints;
++	uByte		bInterfaceClass;
++	uByte		bInterfaceSubClass;
++	uByte		bInterfaceProtocol;
++	uByte		iInterface;
++} UPACKED usb_interface_descriptor_t;
++#define USB_INTERFACE_DESCRIPTOR_SIZE 9
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uByte		bEndpointAddress;
++#define UE_GET_DIR(a)	((a) & 0x80)
++#define UE_SET_DIR(a,d)	((a) | (((d)&1) << 7))
++#define UE_DIR_IN	0x80
++#define UE_DIR_OUT	0x00
++#define UE_ADDR		0x0f
++#define UE_GET_ADDR(a)	((a) & UE_ADDR)
++	uByte		bmAttributes;
++#define UE_XFERTYPE	0x03
++#define  UE_CONTROL	0x00
++#define  UE_ISOCHRONOUS	0x01
++#define  UE_BULK	0x02
++#define  UE_INTERRUPT	0x03
++#define UE_GET_XFERTYPE(a)	((a) & UE_XFERTYPE)
++#define UE_ISO_TYPE	0x0c
++#define  UE_ISO_ASYNC	0x04
++#define  UE_ISO_ADAPT	0x08
++#define  UE_ISO_SYNC	0x0c
++#define UE_GET_ISO_TYPE(a)	((a) & UE_ISO_TYPE)
++	uWord		wMaxPacketSize;
++	uByte		bInterval;
++} UPACKED usb_endpoint_descriptor_t;
++#define USB_ENDPOINT_DESCRIPTOR_SIZE 7
++
++typedef struct ss_endpoint_companion_descriptor {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bMaxBurst;
++#define USSE_GET_MAX_STREAMS(a)		((a) & 0x1f)
++#define USSE_SET_MAX_STREAMS(a, b)	((a) | ((b) & 0x1f))
++#define USSE_GET_MAX_PACKET_NUM(a)	((a) & 0x03)
++#define USSE_SET_MAX_PACKET_NUM(a, b)	((a) | ((b) & 0x03))
++	uByte bmAttributes;
++	uWord wBytesPerInterval;
++} UPACKED ss_endpoint_companion_descriptor_t;
++#define USB_SS_ENDPOINT_COMPANION_DESCRIPTOR_SIZE 6
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uWord		bString[127];
++} UPACKED usb_string_descriptor_t;
++#define USB_MAX_STRING_LEN 128
++#define USB_LANGUAGE_TABLE 0	/* # of the string language id table */
++
++/* Hub specific request */
++#define UR_GET_BUS_STATE	0x02
++#define UR_CLEAR_TT_BUFFER	0x08
++#define UR_RESET_TT		0x09
++#define UR_GET_TT_STATE		0x0a
++#define UR_STOP_TT		0x0b
++
++/* Hub features */
++#define UHF_C_HUB_LOCAL_POWER	0
++#define UHF_C_HUB_OVER_CURRENT	1
++#define UHF_PORT_CONNECTION	0
++#define UHF_PORT_ENABLE		1
++#define UHF_PORT_SUSPEND	2
++#define UHF_PORT_OVER_CURRENT	3
++#define UHF_PORT_RESET		4
++#define UHF_PORT_L1		5
++#define UHF_PORT_POWER		8
++#define UHF_PORT_LOW_SPEED	9
++#define UHF_PORT_HIGH_SPEED	10
++#define UHF_C_PORT_CONNECTION	16
++#define UHF_C_PORT_ENABLE	17
++#define UHF_C_PORT_SUSPEND	18
++#define UHF_C_PORT_OVER_CURRENT	19
++#define UHF_C_PORT_RESET	20
++#define UHF_C_PORT_L1		23
++#define UHF_PORT_TEST		21
++#define UHF_PORT_INDICATOR	22
++
++typedef struct {
++	uByte		bDescLength;
++	uByte		bDescriptorType;
++	uByte		bNbrPorts;
++	uWord		wHubCharacteristics;
++#define UHD_PWR			0x0003
++#define  UHD_PWR_GANGED		0x0000
++#define  UHD_PWR_INDIVIDUAL	0x0001
++#define  UHD_PWR_NO_SWITCH	0x0002
++#define UHD_COMPOUND		0x0004
++#define UHD_OC			0x0018
++#define  UHD_OC_GLOBAL		0x0000
++#define  UHD_OC_INDIVIDUAL	0x0008
++#define  UHD_OC_NONE		0x0010
++#define UHD_TT_THINK		0x0060
++#define  UHD_TT_THINK_8		0x0000
++#define  UHD_TT_THINK_16	0x0020
++#define  UHD_TT_THINK_24	0x0040
++#define  UHD_TT_THINK_32	0x0060
++#define UHD_PORT_IND		0x0080
++	uByte		bPwrOn2PwrGood;	/* delay in 2 ms units */
++#define UHD_PWRON_FACTOR 2
++	uByte		bHubContrCurrent;
++	uByte		DeviceRemovable[32]; /* max 255 ports */
++#define UHD_NOT_REMOV(desc, i) \
++    (((desc)->DeviceRemovable[(i)/8] >> ((i) % 8)) & 1)
++	/* deprecated */ uByte		PortPowerCtrlMask[1];
++} UPACKED usb_hub_descriptor_t;
++#define USB_HUB_DESCRIPTOR_SIZE 9 /* includes deprecated PortPowerCtrlMask */
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uWord		bcdUSB;
++	uByte		bDeviceClass;
++	uByte		bDeviceSubClass;
++	uByte		bDeviceProtocol;
++	uByte		bMaxPacketSize0;
++	uByte		bNumConfigurations;
++	uByte		bReserved;
++} UPACKED usb_device_qualifier_t;
++#define USB_DEVICE_QUALIFIER_SIZE 10
++
++typedef struct {
++	uByte		bLength;
++	uByte		bDescriptorType;
++	uByte		bmAttributes;
++#define UOTG_SRP	0x01
++#define UOTG_HNP	0x02
++} UPACKED usb_otg_descriptor_t;
++
++/* OTG feature selectors */
++#define UOTG_B_HNP_ENABLE	3
++#define UOTG_A_HNP_SUPPORT	4
++#define UOTG_A_ALT_HNP_SUPPORT	5
++
++typedef struct {
++	uWord		wStatus;
++/* Device status flags */
++#define UDS_SELF_POWERED		0x0001
++#define UDS_REMOTE_WAKEUP		0x0002
++/* Endpoint status flags */
++#define UES_HALT			0x0001
++} UPACKED usb_status_t;
++
++typedef struct {
++	uWord		wHubStatus;
++#define UHS_LOCAL_POWER			0x0001
++#define UHS_OVER_CURRENT		0x0002
++	uWord		wHubChange;
++} UPACKED usb_hub_status_t;
++
++typedef struct {
++	uWord		wPortStatus;
++#define UPS_CURRENT_CONNECT_STATUS	0x0001
++#define UPS_PORT_ENABLED		0x0002
++#define UPS_SUSPEND			0x0004
++#define UPS_OVERCURRENT_INDICATOR	0x0008
++#define UPS_RESET			0x0010
++#define UPS_PORT_POWER			0x0100
++#define UPS_LOW_SPEED			0x0200
++#define UPS_HIGH_SPEED			0x0400
++#define UPS_PORT_TEST			0x0800
++#define UPS_PORT_INDICATOR		0x1000
++	uWord		wPortChange;
++#define UPS_C_CONNECT_STATUS		0x0001
++#define UPS_C_PORT_ENABLED		0x0002
++#define UPS_C_SUSPEND			0x0004
++#define UPS_C_OVERCURRENT_INDICATOR	0x0008
++#define UPS_C_PORT_RESET		0x0010
++} UPACKED usb_port_status_t;
++
++#ifdef _MSC_VER
++#include <poppack.h>
++#endif
++
++/* Device class codes */
++#define UDCLASS_IN_INTERFACE	0x00
++#define UDCLASS_COMM		0x02
++#define UDCLASS_HUB		0x09
++#define  UDSUBCLASS_HUB		0x00
++#define  UDPROTO_FSHUB		0x00
++#define  UDPROTO_HSHUBSTT	0x01
++#define  UDPROTO_HSHUBMTT	0x02
++#define UDCLASS_DIAGNOSTIC	0xdc
++#define UDCLASS_WIRELESS	0xe0
++#define  UDSUBCLASS_RF		0x01
++#define   UDPROTO_BLUETOOTH	0x01
++#define UDCLASS_VENDOR		0xff
++
++/* Interface class codes */
++#define UICLASS_UNSPEC		0x00
++
++#define UICLASS_AUDIO		0x01
++#define  UISUBCLASS_AUDIOCONTROL	1
++#define  UISUBCLASS_AUDIOSTREAM		2
++#define  UISUBCLASS_MIDISTREAM		3
++
++#define UICLASS_CDC		0x02 /* communication */
++#define  UISUBCLASS_DIRECT_LINE_CONTROL_MODEL	1
++#define  UISUBCLASS_ABSTRACT_CONTROL_MODEL	2
++#define  UISUBCLASS_TELEPHONE_CONTROL_MODEL	3
++#define  UISUBCLASS_MULTICHANNEL_CONTROL_MODEL	4
++#define  UISUBCLASS_CAPI_CONTROLMODEL		5
++#define  UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL 6
++#define  UISUBCLASS_ATM_NETWORKING_CONTROL_MODEL 7
++#define   UIPROTO_CDC_AT			1
++
++#define UICLASS_HID		0x03
++#define  UISUBCLASS_BOOT	1
++#define  UIPROTO_BOOT_KEYBOARD	1
++
++#define UICLASS_PHYSICAL	0x05
++
++#define UICLASS_IMAGE		0x06
++
++#define UICLASS_PRINTER		0x07
++#define  UISUBCLASS_PRINTER	1
++#define  UIPROTO_PRINTER_UNI	1
++#define  UIPROTO_PRINTER_BI	2
++#define  UIPROTO_PRINTER_1284	3
++
++#define UICLASS_MASS		0x08
++#define  UISUBCLASS_RBC		1
++#define  UISUBCLASS_SFF8020I	2
++#define  UISUBCLASS_QIC157	3
++#define  UISUBCLASS_UFI		4
++#define  UISUBCLASS_SFF8070I	5
++#define  UISUBCLASS_SCSI	6
++#define  UIPROTO_MASS_CBI_I	0
++#define  UIPROTO_MASS_CBI	1
++#define  UIPROTO_MASS_BBB_OLD	2	/* Not in the spec anymore */
++#define  UIPROTO_MASS_BBB	80	/* 'P' for the Iomega Zip drive */
++
++#define UICLASS_HUB		0x09
++#define  UISUBCLASS_HUB		0
++#define  UIPROTO_FSHUB		0
++#define  UIPROTO_HSHUBSTT	0 /* Yes, same as previous */
++#define  UIPROTO_HSHUBMTT	1
++
++#define UICLASS_CDC_DATA	0x0a
++#define  UISUBCLASS_DATA		0
++#define   UIPROTO_DATA_ISDNBRI		0x30    /* Physical iface */
++#define   UIPROTO_DATA_HDLC		0x31    /* HDLC */
++#define   UIPROTO_DATA_TRANSPARENT	0x32    /* Transparent */
++#define   UIPROTO_DATA_Q921M		0x50    /* Management for Q921 */
++#define   UIPROTO_DATA_Q921		0x51    /* Data for Q921 */
++#define   UIPROTO_DATA_Q921TM		0x52    /* TEI multiplexer for Q921 */
++#define   UIPROTO_DATA_V42BIS		0x90    /* Data compression */
++#define   UIPROTO_DATA_Q931		0x91    /* Euro-ISDN */
++#define   UIPROTO_DATA_V120		0x92    /* V.24 rate adaption */
++#define   UIPROTO_DATA_CAPI		0x93    /* CAPI 2.0 commands */
++#define   UIPROTO_DATA_HOST_BASED	0xfd    /* Host based driver */
++#define   UIPROTO_DATA_PUF		0xfe    /* see Prot. Unit Func. Desc.*/
++#define   UIPROTO_DATA_VENDOR		0xff    /* Vendor specific */
++
++#define UICLASS_SMARTCARD	0x0b
++
++/*#define UICLASS_FIRM_UPD	0x0c*/
++
++#define UICLASS_SECURITY	0x0d
++
++#define UICLASS_DIAGNOSTIC	0xdc
++
++#define UICLASS_WIRELESS	0xe0
++#define  UISUBCLASS_RF			0x01
++#define   UIPROTO_BLUETOOTH		0x01
++
++#define UICLASS_APPL_SPEC	0xfe
++#define  UISUBCLASS_FIRMWARE_DOWNLOAD	1
++#define  UISUBCLASS_IRDA		2
++#define  UIPROTO_IRDA			0
++
++#define UICLASS_VENDOR		0xff
++
++#define USB_HUB_MAX_DEPTH 5
++
++/*
++ * Minimum time a device needs to be powered down to go through
++ * a power cycle.  XXX Are these time in the spec?
++ */
++#define USB_POWER_DOWN_TIME	200 /* ms */
++#define USB_PORT_POWER_DOWN_TIME	100 /* ms */
++
++#if 0
++/* These are the values from the spec. */
++#define USB_PORT_RESET_DELAY	10  /* ms */
++#define USB_PORT_ROOT_RESET_DELAY 50  /* ms */
++#define USB_PORT_RESET_RECOVERY	10  /* ms */
++#define USB_PORT_POWERUP_DELAY	100 /* ms */
++#define USB_SET_ADDRESS_SETTLE	2   /* ms */
++#define USB_RESUME_DELAY	(20*5)  /* ms */
++#define USB_RESUME_WAIT		10  /* ms */
++#define USB_RESUME_RECOVERY	10  /* ms */
++#define USB_EXTRA_POWER_UP_TIME	0   /* ms */
++#else
++/* Allow for marginal (i.e. non-conforming) devices. */
++#define USB_PORT_RESET_DELAY	50  /* ms */
++#define USB_PORT_ROOT_RESET_DELAY 250  /* ms */
++#define USB_PORT_RESET_RECOVERY	250  /* ms */
++#define USB_PORT_POWERUP_DELAY	300 /* ms */
++#define USB_SET_ADDRESS_SETTLE	10  /* ms */
++#define USB_RESUME_DELAY	(50*5)  /* ms */
++#define USB_RESUME_WAIT		50  /* ms */
++#define USB_RESUME_RECOVERY	50  /* ms */
++#define USB_EXTRA_POWER_UP_TIME	20  /* ms */
++#endif
++
++#define USB_MIN_POWER		100 /* mA */
++#define USB_MAX_POWER		500 /* mA */
++
++#define USB_BUS_RESET_DELAY	100 /* ms XXX?*/
++
++#define USB_UNCONFIG_NO 0
++#define USB_UNCONFIG_INDEX (-1)
++
++/*** ioctl() related stuff ***/
++
++struct usb_ctl_request {
++	int	ucr_addr;
++	usb_device_request_t ucr_request;
++	void	*ucr_data;
++	int	ucr_flags;
++#define USBD_SHORT_XFER_OK	0x04	/* allow short reads */
++	int	ucr_actlen;		/* actual length transferred */
++};
++
++struct usb_alt_interface {
++	int	uai_config_index;
++	int	uai_interface_index;
++	int	uai_alt_no;
++};
++
++#define USB_CURRENT_CONFIG_INDEX (-1)
++#define USB_CURRENT_ALT_INDEX (-1)
++
++struct usb_config_desc {
++	int	ucd_config_index;
++	usb_config_descriptor_t ucd_desc;
++};
++
++struct usb_interface_desc {
++	int	uid_config_index;
++	int	uid_interface_index;
++	int	uid_alt_index;
++	usb_interface_descriptor_t uid_desc;
++};
++
++struct usb_endpoint_desc {
++	int	ued_config_index;
++	int	ued_interface_index;
++	int	ued_alt_index;
++	int	ued_endpoint_index;
++	usb_endpoint_descriptor_t ued_desc;
++};
++
++struct usb_full_desc {
++	int	ufd_config_index;
++	u_int	ufd_size;
++	u_char	*ufd_data;
++};
++
++struct usb_string_desc {
++	int	usd_string_index;
++	int	usd_language_id;
++	usb_string_descriptor_t usd_desc;
++};
++
++struct usb_ctl_report_desc {
++	int	ucrd_size;
++	u_char	ucrd_data[1024];	/* filled data size will vary */
++};
++
++typedef struct { u_int32_t cookie; } usb_event_cookie_t;
++
++#define USB_MAX_DEVNAMES 4
++#define USB_MAX_DEVNAMELEN 16
++struct usb_device_info {
++	u_int8_t	udi_bus;
++	u_int8_t	udi_addr;	/* device address */
++	usb_event_cookie_t udi_cookie;
++	char		udi_product[USB_MAX_STRING_LEN];
++	char		udi_vendor[USB_MAX_STRING_LEN];
++	char		udi_release[8];
++	u_int16_t	udi_productNo;
++	u_int16_t	udi_vendorNo;
++	u_int16_t	udi_releaseNo;
++	u_int8_t	udi_class;
++	u_int8_t	udi_subclass;
++	u_int8_t	udi_protocol;
++	u_int8_t	udi_config;
++	u_int8_t	udi_speed;
++#define USB_SPEED_UNKNOWN	0
++#define USB_SPEED_LOW		1
++#define USB_SPEED_FULL		2
++#define USB_SPEED_HIGH		3
++#define USB_SPEED_VARIABLE	4
++#define USB_SPEED_SUPER		5
++	int		udi_power;	/* power consumption in mA, 0 if selfpowered */
++	int		udi_nports;
++	char		udi_devnames[USB_MAX_DEVNAMES][USB_MAX_DEVNAMELEN];
++	u_int8_t	udi_ports[16];/* hub only: addresses of devices on ports */
++#define USB_PORT_ENABLED 0xff
++#define USB_PORT_SUSPENDED 0xfe
++#define USB_PORT_POWERED 0xfd
++#define USB_PORT_DISABLED 0xfc
++};
++
++struct usb_ctl_report {
++	int	ucr_report;
++	u_char	ucr_data[1024];	/* filled data size will vary */
++};
++
++struct usb_device_stats {
++	u_long	uds_requests[4];	/* indexed by transfer type UE_* */
++};
++
++#define WUSB_MIN_IE			0x80
++#define WUSB_WCTA_IE			0x80
++#define WUSB_WCONNECTACK_IE		0x81
++#define WUSB_WHOSTINFO_IE		0x82
++#define  WUHI_GET_CA(_bmAttributes_) ((_bmAttributes_) & 0x3)
++#define   WUHI_CA_RECONN		0x00
++#define   WUHI_CA_LIMITED		0x01
++#define   WUHI_CA_ALL			0x03
++#define  WUHI_GET_MLSI(_bmAttributes_) (((_bmAttributes_) & 0x38) >> 3)
++#define WUSB_WCHCHANGEANNOUNCE_IE	0x83
++#define WUSB_WDEV_DISCONNECT_IE		0x84
++#define WUSB_WHOST_DISCONNECT_IE	0x85
++#define WUSB_WRELEASE_CHANNEL_IE	0x86
++#define WUSB_WWORK_IE			0x87
++#define WUSB_WCHANNEL_STOP_IE		0x88
++#define WUSB_WDEV_KEEPALIVE_IE		0x89
++#define WUSB_WISOCH_DISCARD_IE		0x8A
++#define WUSB_WRESETDEVICE_IE		0x8B
++#define WUSB_WXMIT_PACKET_ADJUST_IE	0x8C
++#define WUSB_MAX_IE			0x8C
++
++/* Device Notification Types */
++
++#define WUSB_DN_MIN			0x01
++#define WUSB_DN_CONNECT			0x01
++# define WUSB_DA_OLDCONN	0x00
++# define WUSB_DA_NEWCONN	0x01
++# define WUSB_DA_SELF_BEACON	0x02
++# define WUSB_DA_DIR_BEACON	0x04
++# define WUSB_DA_NO_BEACON	0x06
++#define WUSB_DN_DISCONNECT		0x02
++#define WUSB_DN_EPRDY			0x03
++#define WUSB_DN_MASAVAILCHANGED		0x04
++#define WUSB_DN_REMOTEWAKEUP		0x05
++#define WUSB_DN_SLEEP			0x06
++#define WUSB_DN_ALIVE			0x07
++#define WUSB_DN_MAX			0x07
++
++#ifdef _MSC_VER
++#include <pshpack1.h>
++#endif
++
++/* WUSB Handshake Data.  Used during the SET/GET HANDSHAKE requests */
++typedef struct wusb_hndshk_data {
++	uByte bMessageNumber;
++	uByte bStatus;
++	uByte tTKID[3];
++	uByte bReserved;
++	uByte CDID[16];
++	uByte Nonce[16];
++	uByte MIC[8];
++} UPACKED wusb_hndshk_data_t;
++#define WUSB_HANDSHAKE_LEN_FOR_MIC	38
++
++/* WUSB Connection Context */
++typedef struct wusb_conn_context {
++	uByte CHID [16];
++	uByte CDID [16];
++	uByte CK [16];
++} UPACKED wusb_conn_context_t;
++
++/* WUSB Security Descriptor */
++typedef struct wusb_security_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uWord wTotalLength;
++	uByte bNumEncryptionTypes;
++} UPACKED wusb_security_desc_t;
++
++/* WUSB Encryption Type Descriptor */
++typedef struct wusb_encrypt_type_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++
++	uByte bEncryptionType;
++#define WUETD_UNSECURE		0
++#define WUETD_WIRED		1
++#define WUETD_CCM_1		2
++#define WUETD_RSA_1		3
++
++	uByte bEncryptionValue;
++	uByte bAuthKeyIndex;
++} UPACKED wusb_encrypt_type_desc_t;
++
++/* WUSB Key Descriptor */
++typedef struct wusb_key_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte tTKID[3];
++	uByte bReserved;
++	uByte KeyData[1];	/* variable length */
++} UPACKED wusb_key_desc_t;
++
++/* WUSB BOS Descriptor (Binary device Object Store) */
++typedef struct wusb_bos_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uWord wTotalLength;
++	uByte bNumDeviceCaps;
++} UPACKED wusb_bos_desc_t;
++
++#define USB_DEVICE_CAPABILITY_20_EXTENSION	0x02
++typedef struct usb_dev_cap_20_ext_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bDevCapabilityType;
++#define USB_20_EXT_LPM				0x02
++	uDWord bmAttributes;
++} UPACKED usb_dev_cap_20_ext_desc_t;
++
++#define USB_DEVICE_CAPABILITY_SS_USB		0x03
++typedef struct usb_dev_cap_ss_usb {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bDevCapabilityType;
++#define USB_DC_SS_USB_LTM_CAPABLE		0x02
++	uByte bmAttributes;
++#define USB_DC_SS_USB_SPEED_SUPPORT_LOW		0x01
++#define USB_DC_SS_USB_SPEED_SUPPORT_FULL	0x02
++#define USB_DC_SS_USB_SPEED_SUPPORT_HIGH	0x04
++#define USB_DC_SS_USB_SPEED_SUPPORT_SS		0x08
++	uWord wSpeedsSupported;
++	uByte bFunctionalitySupport;
++	uByte bU1DevExitLat;
++	uWord wU2DevExitLat;
++} UPACKED usb_dev_cap_ss_usb_t;
++
++#define USB_DEVICE_CAPABILITY_CONTAINER_ID	0x04
++typedef struct usb_dev_cap_container_id {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bDevCapabilityType;
++	uByte bReserved;
++	uByte containerID[16];
++} UPACKED usb_dev_cap_container_id_t;
++
++/* Device Capability Type Codes */
++#define WUSB_DEVICE_CAPABILITY_WIRELESS_USB 0x01
++
++/* Device Capability Descriptor */
++typedef struct wusb_dev_cap_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bDevCapabilityType;
++	uByte caps[1];	/* Variable length */
++} UPACKED wusb_dev_cap_desc_t;
++
++/* Device Capability Descriptor */
++typedef struct wusb_dev_cap_uwb_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bDevCapabilityType;
++	uByte bmAttributes;
++	uWord wPHYRates;	/* Bitmap */
++	uByte bmTFITXPowerInfo;
++	uByte bmFFITXPowerInfo;
++	uWord bmBandGroup;
++	uByte bReserved;
++} UPACKED wusb_dev_cap_uwb_desc_t;
++
++/* Wireless USB Endpoint Companion Descriptor */
++typedef struct wusb_endpoint_companion_desc {
++	uByte bLength;
++	uByte bDescriptorType;
++	uByte bMaxBurst;
++	uByte bMaxSequence;
++	uWord wMaxStreamDelay;
++	uWord wOverTheAirPacketSize;
++	uByte bOverTheAirInterval;
++	uByte bmCompAttributes;
++} UPACKED wusb_endpoint_companion_desc_t;
++
++/* Wireless USB Numeric Association M1 Data Structure */
++typedef struct wusb_m1_data {
++	uByte version;
++	uWord langId;
++	uByte deviceFriendlyNameLength;
++	uByte sha_256_m3[32];
++	uByte deviceFriendlyName[256];
++} UPACKED wusb_m1_data_t;
++
++typedef struct wusb_m2_data {
++	uByte version;
++	uWord langId;
++	uByte hostFriendlyNameLength;
++	uByte pkh[384];
++	uByte hostFriendlyName[256];
++} UPACKED wusb_m2_data_t;
++
++typedef struct wusb_m3_data {
++	uByte pkd[384];
++	uByte nd;
++} UPACKED wusb_m3_data_t;
++
++typedef struct wusb_m4_data {
++	uDWord _attributeTypeIdAndLength_1;
++	uWord  associationTypeId;
++
++	uDWord _attributeTypeIdAndLength_2;
++	uWord  associationSubTypeId;
++
++	uDWord _attributeTypeIdAndLength_3;
++	uDWord length;
++
++	uDWord _attributeTypeIdAndLength_4;
++	uDWord associationStatus;
++
++	uDWord _attributeTypeIdAndLength_5;
++	uByte  chid[16];
++
++	uDWord _attributeTypeIdAndLength_6;
++	uByte  cdid[16];
++
++	uDWord _attributeTypeIdAndLength_7;
++	uByte  bandGroups[2];
++} UPACKED wusb_m4_data_t;
++
++#ifdef _MSC_VER
++#include <poppack.h>
++#endif
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif /* _USB_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/Makefile
+@@ -0,0 +1,85 @@
++#
++# Makefile for DWC_otg Highspeed USB controller driver
++#
++
++ifneq ($(KERNELRELEASE),)
++
++# Use the BUS_INTERFACE variable to compile the software for either
++# PCI(PCI_INTERFACE) or LM(LM_INTERFACE) bus.
++ifeq ($(BUS_INTERFACE),)
++#	BUS_INTERFACE = -DPCI_INTERFACE
++#	BUS_INTERFACE = -DLM_INTERFACE
++        BUS_INTERFACE = -DPLATFORM_INTERFACE
++endif
++
++#ccflags-y	+= -DDEBUG
++#ccflags-y	+= -DDWC_OTG_DEBUGLEV=1 # reduce common debug msgs
++
++# Use one of the following flags to compile the software in host-only or
++# device-only mode.
++#ccflags-y        += -DDWC_HOST_ONLY
++#ccflags-y        += -DDWC_DEVICE_ONLY
++
++ccflags-y	+= -Dlinux -DDWC_HS_ELECT_TST
++#ccflags-y	+= -DDWC_EN_ISOC
++ccflags-y   	+= -I$(srctree)/drivers/usb/host/dwc_common_port
++#ccflags-y   	+= -I$(PORTLIB)
++ccflags-y   	+= -DDWC_LINUX
++ccflags-y   	+= $(CFI)
++ccflags-y	+= $(BUS_INTERFACE)
++#ccflags-y	+= -DDWC_DEV_SRPCAP
++
++obj-$(CONFIG_USB_DWCOTG) += dwc_otg.o
++
++dwc_otg-objs	:= dwc_otg_driver.o dwc_otg_attr.o
++dwc_otg-objs	+= dwc_otg_cil.o dwc_otg_cil_intr.o
++dwc_otg-objs	+= dwc_otg_pcd_linux.o dwc_otg_pcd.o dwc_otg_pcd_intr.o
++dwc_otg-objs	+= dwc_otg_hcd.o dwc_otg_hcd_linux.o dwc_otg_hcd_intr.o dwc_otg_hcd_queue.o dwc_otg_hcd_ddma.o
++dwc_otg-objs	+= dwc_otg_adp.o
++dwc_otg-objs	+= dwc_otg_fiq_fsm.o
++ifneq ($(CONFIG_ARM64),y)
++dwc_otg-objs	+= dwc_otg_fiq_stub.o
++endif
++
++ifneq ($(CFI),)
++dwc_otg-objs	+= dwc_otg_cfi.o
++endif
++
++kernrelwd := $(subst ., ,$(KERNELRELEASE))
++kernrel3 := $(word 1,$(kernrelwd)).$(word 2,$(kernrelwd)).$(word 3,$(kernrelwd))
++
++ifneq ($(kernrel3),2.6.20)
++ccflags-y += $(CPPFLAGS)
++endif
++
++else
++
++PWD		:= $(shell pwd)
++PORTLIB		:= $(PWD)/../dwc_common_port
++
++# Command paths
++CTAGS		:= $(CTAGS)
++DOXYGEN		:= $(DOXYGEN)
++
++default: portlib
++	$(MAKE) -C$(KDIR) M=$(PWD) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules
++
++install: default
++	$(MAKE) -C$(KDIR) M=$(PORTLIB) modules_install
++	$(MAKE) -C$(KDIR) M=$(PWD) modules_install
++
++portlib:
++	$(MAKE) -C$(KDIR) M=$(PORTLIB) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) modules
++	cp $(PORTLIB)/Module.symvers $(PWD)/
++
++docs:	$(wildcard *.[hc]) doc/doxygen.cfg
++	$(DOXYGEN) doc/doxygen.cfg
++
++tags:	$(wildcard *.[hc])
++	$(CTAGS) -e $(wildcard *.[hc]) $(wildcard linux/*.[hc]) $(wildcard $(KDIR)/include/linux/usb*.h)
++
++
++clean:
++	rm -rf   *.o *.ko .*cmd *.mod.c .tmp_versions Module.symvers
++
++endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/doc/doxygen.cfg
+@@ -0,0 +1,224 @@
++# Doxyfile 1.3.9.1
++
++#---------------------------------------------------------------------------
++# Project related configuration options
++#---------------------------------------------------------------------------
++PROJECT_NAME           = "DesignWare USB 2.0 OTG Controller (DWC_otg) Device Driver"
++PROJECT_NUMBER         = v3.00a
++OUTPUT_DIRECTORY       = ./doc/
++CREATE_SUBDIRS         = NO
++OUTPUT_LANGUAGE        = English
++BRIEF_MEMBER_DESC      = YES
++REPEAT_BRIEF           = YES
++ABBREVIATE_BRIEF       = "The $name class" \
++                         "The $name widget" \
++                         "The $name file" \
++                         is \
++                         provides \
++                         specifies \
++                         contains \
++                         represents \
++                         a \
++                         an \
++                         the
++ALWAYS_DETAILED_SEC    = NO
++INLINE_INHERITED_MEMB  = NO
++FULL_PATH_NAMES        = NO
++STRIP_FROM_PATH        =
++STRIP_FROM_INC_PATH    =
++SHORT_NAMES            = NO
++JAVADOC_AUTOBRIEF      = YES
++MULTILINE_CPP_IS_BRIEF = NO
++INHERIT_DOCS           = YES
++DISTRIBUTE_GROUP_DOC   = NO
++TAB_SIZE               = 8
++ALIASES                =
++OPTIMIZE_OUTPUT_FOR_C  = YES
++OPTIMIZE_OUTPUT_JAVA   = NO
++SUBGROUPING            = YES
++#---------------------------------------------------------------------------
++# Build related configuration options
++#---------------------------------------------------------------------------
++EXTRACT_ALL            = NO
++EXTRACT_PRIVATE        = YES
++EXTRACT_STATIC         = YES
++EXTRACT_LOCAL_CLASSES  = YES
++EXTRACT_LOCAL_METHODS  = NO
++HIDE_UNDOC_MEMBERS     = NO
++HIDE_UNDOC_CLASSES     = NO
++HIDE_FRIEND_COMPOUNDS  = NO
++HIDE_IN_BODY_DOCS      = NO
++INTERNAL_DOCS          = NO
++CASE_SENSE_NAMES       = NO
++HIDE_SCOPE_NAMES       = NO
++SHOW_INCLUDE_FILES     = YES
++INLINE_INFO            = YES
++SORT_MEMBER_DOCS       = NO
++SORT_BRIEF_DOCS        = NO
++SORT_BY_SCOPE_NAME     = NO
++GENERATE_TODOLIST      = YES
++GENERATE_TESTLIST      = YES
++GENERATE_BUGLIST       = YES
++GENERATE_DEPRECATEDLIST= YES
++ENABLED_SECTIONS       =
++MAX_INITIALIZER_LINES  = 30
++SHOW_USED_FILES        = YES
++SHOW_DIRECTORIES       = YES
++#---------------------------------------------------------------------------
++# configuration options related to warning and progress messages
++#---------------------------------------------------------------------------
++QUIET                  = YES
++WARNINGS               = YES
++WARN_IF_UNDOCUMENTED   = NO
++WARN_IF_DOC_ERROR      = YES
++WARN_FORMAT            = "$file:$line: $text"
++WARN_LOGFILE           =
++#---------------------------------------------------------------------------
++# configuration options related to the input files
++#---------------------------------------------------------------------------
++INPUT                  = .
++FILE_PATTERNS          = *.c \
++                         *.h \
++                         ./linux/*.c \
++                         ./linux/*.h
++RECURSIVE              = NO
++EXCLUDE                = ./test/ \
++                         ./dwc_otg/.AppleDouble/
++EXCLUDE_SYMLINKS       = YES
++EXCLUDE_PATTERNS       = *.mod.*
++EXAMPLE_PATH           =
++EXAMPLE_PATTERNS       = *
++EXAMPLE_RECURSIVE      = NO
++IMAGE_PATH             =
++INPUT_FILTER           =
++FILTER_PATTERNS        =
++FILTER_SOURCE_FILES    = NO
++#---------------------------------------------------------------------------
++# configuration options related to source browsing
++#---------------------------------------------------------------------------
++SOURCE_BROWSER         = YES
++INLINE_SOURCES         = NO
++STRIP_CODE_COMMENTS    = YES
++REFERENCED_BY_RELATION = NO
++REFERENCES_RELATION    = NO
++VERBATIM_HEADERS       = NO
++#---------------------------------------------------------------------------
++# configuration options related to the alphabetical class index
++#---------------------------------------------------------------------------
++ALPHABETICAL_INDEX     = NO
++COLS_IN_ALPHA_INDEX    = 5
++IGNORE_PREFIX          =
++#---------------------------------------------------------------------------
++# configuration options related to the HTML output
++#---------------------------------------------------------------------------
++GENERATE_HTML          = YES
++HTML_OUTPUT            = html
++HTML_FILE_EXTENSION    = .html
++HTML_HEADER            =
++HTML_FOOTER            =
++HTML_STYLESHEET        =
++HTML_ALIGN_MEMBERS     = YES
++GENERATE_HTMLHELP      = NO
++CHM_FILE               =
++HHC_LOCATION           =
++GENERATE_CHI           = NO
++BINARY_TOC             = NO
++TOC_EXPAND             = NO
++DISABLE_INDEX          = NO
++ENUM_VALUES_PER_LINE   = 4
++GENERATE_TREEVIEW      = YES
++TREEVIEW_WIDTH         = 250
++#---------------------------------------------------------------------------
++# configuration options related to the LaTeX output
++#---------------------------------------------------------------------------
++GENERATE_LATEX         = NO
++LATEX_OUTPUT           = latex
++LATEX_CMD_NAME         = latex
++MAKEINDEX_CMD_NAME     = makeindex
++COMPACT_LATEX          = NO
++PAPER_TYPE             = a4wide
++EXTRA_PACKAGES         =
++LATEX_HEADER           =
++PDF_HYPERLINKS         = NO
++USE_PDFLATEX           = NO
++LATEX_BATCHMODE        = NO
++LATEX_HIDE_INDICES     = NO
++#---------------------------------------------------------------------------
++# configuration options related to the RTF output
++#---------------------------------------------------------------------------
++GENERATE_RTF           = NO
++RTF_OUTPUT             = rtf
++COMPACT_RTF            = NO
++RTF_HYPERLINKS         = NO
++RTF_STYLESHEET_FILE    =
++RTF_EXTENSIONS_FILE    =
++#---------------------------------------------------------------------------
++# configuration options related to the man page output
++#---------------------------------------------------------------------------
++GENERATE_MAN           = NO
++MAN_OUTPUT             = man
++MAN_EXTENSION          = .3
++MAN_LINKS              = NO
++#---------------------------------------------------------------------------
++# configuration options related to the XML output
++#---------------------------------------------------------------------------
++GENERATE_XML           = NO
++XML_OUTPUT             = xml
++XML_SCHEMA             =
++XML_DTD                =
++XML_PROGRAMLISTING     = YES
++#---------------------------------------------------------------------------
++# configuration options for the AutoGen Definitions output
++#---------------------------------------------------------------------------
++GENERATE_AUTOGEN_DEF   = NO
++#---------------------------------------------------------------------------
++# configuration options related to the Perl module output
++#---------------------------------------------------------------------------
++GENERATE_PERLMOD       = NO
++PERLMOD_LATEX          = NO
++PERLMOD_PRETTY         = YES
++PERLMOD_MAKEVAR_PREFIX =
++#---------------------------------------------------------------------------
++# Configuration options related to the preprocessor
++#---------------------------------------------------------------------------
++ENABLE_PREPROCESSING   = YES
++MACRO_EXPANSION        = YES
++EXPAND_ONLY_PREDEF     = YES
++SEARCH_INCLUDES        = YES
++INCLUDE_PATH           =
++INCLUDE_FILE_PATTERNS  =
++PREDEFINED             = DEVICE_ATTR DWC_EN_ISOC
++EXPAND_AS_DEFINED      = DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW DWC_OTG_DEVICE_ATTR_BITFIELD_STORE DWC_OTG_DEVICE_ATTR_BITFIELD_RW DWC_OTG_DEVICE_ATTR_BITFIELD_RO DWC_OTG_DEVICE_ATTR_REG_SHOW DWC_OTG_DEVICE_ATTR_REG_STORE DWC_OTG_DEVICE_ATTR_REG32_RW DWC_OTG_DEVICE_ATTR_REG32_RO DWC_EN_ISOC
++SKIP_FUNCTION_MACROS   = NO
++#---------------------------------------------------------------------------
++# Configuration::additions related to external references
++#---------------------------------------------------------------------------
++TAGFILES               =
++GENERATE_TAGFILE       =
++ALLEXTERNALS           = NO
++EXTERNAL_GROUPS        = YES
++PERL_PATH              = /usr/bin/perl
++#---------------------------------------------------------------------------
++# Configuration options related to the dot tool
++#---------------------------------------------------------------------------
++CLASS_DIAGRAMS         = YES
++HIDE_UNDOC_RELATIONS   = YES
++HAVE_DOT               = NO
++CLASS_GRAPH            = YES
++COLLABORATION_GRAPH    = YES
++UML_LOOK               = NO
++TEMPLATE_RELATIONS     = NO
++INCLUDE_GRAPH          = YES
++INCLUDED_BY_GRAPH      = YES
++CALL_GRAPH             = NO
++GRAPHICAL_HIERARCHY    = YES
++DOT_IMAGE_FORMAT       = png
++DOT_PATH               =
++DOTFILE_DIRS           =
++MAX_DOT_GRAPH_DEPTH    = 1000
++GENERATE_LEGEND        = YES
++DOT_CLEANUP            = YES
++#---------------------------------------------------------------------------
++# Configuration::additions related to the search engine
++#---------------------------------------------------------------------------
++SEARCHENGINE           = NO
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dummy_audio.c
+@@ -0,0 +1,1574 @@
++/*
++ * zero.c -- Gadget Zero, for USB development
++ *
++ * Copyright (C) 2003-2004 David Brownell
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") as published by the Free Software
++ * Foundation, either version 2 of that License or (at your option) any
++ * later version.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++
++/*
++ * Gadget Zero only needs two bulk endpoints, and is an example of how you
++ * can write a hardware-agnostic gadget driver running inside a USB device.
++ *
++ * Hardware details are visible (see CONFIG_USB_ZERO_* below) but don't
++ * affect most of the driver.
++ *
++ * Use it with the Linux host/master side "usbtest" driver to get a basic
++ * functional test of your device-side usb stack, or with "usb-skeleton".
++ *
++ * It supports two similar configurations.  One sinks whatever the usb host
++ * writes, and in return sources zeroes.  The other loops whatever the host
++ * writes back, so the host can read it.  Module options include:
++ *
++ *   buflen=N		default N=4096, buffer size used
++ *   qlen=N		default N=32, how many buffers in the loopback queue
++ *   loopdefault	default false, list loopback config first
++ *
++ * Many drivers will only have one configuration, letting them be much
++ * simpler if they also don't support high speed operation (like this
++ * driver does).
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/delay.h>
++#include <linux/ioport.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/smp_lock.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/timer.h>
++#include <linux/list.h>
++#include <linux/interrupt.h>
++#include <linux/uts.h>
++#include <linux/version.h>
++#include <linux/device.h>
++#include <linux/moduleparam.h>
++#include <linux/proc_fs.h>
++
++#include <asm/byteorder.h>
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/system.h>
++#include <asm/unaligned.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)
++# include <linux/usb/ch9.h>
++#else
++# include <linux/usb_ch9.h>
++#endif
++
++#include <linux/usb_gadget.h>
++
++
++/*-------------------------------------------------------------------------*/
++/*-------------------------------------------------------------------------*/
++
++
++static int utf8_to_utf16le(const char *s, u16 *cp, unsigned len)
++{
++	int	count = 0;
++	u8	c;
++	u16	uchar;
++
++	/* this insists on correct encodings, though not minimal ones.
++	 * BUT it currently rejects legit 4-byte UTF-8 code points,
++	 * which need surrogate pairs.  (Unicode 3.1 can use them.)
++	 */
++	while (len != 0 && (c = (u8) *s++) != 0) {
++		if (unlikely(c & 0x80)) {
++			// 2-byte sequence:
++			// 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
++			if ((c & 0xe0) == 0xc0) {
++				uchar = (c & 0x1f) << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++			// 3-byte sequence (most CJKV characters):
++			// zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
++			} else if ((c & 0xf0) == 0xe0) {
++				uchar = (c & 0x0f) << 12;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c << 6;
++
++				c = (u8) *s++;
++				if ((c & 0xc0) != 0xc0)
++					goto fail;
++				c &= 0x3f;
++				uchar |= c;
++
++				/* no bogus surrogates */
++				if (0xd800 <= uchar && uchar <= 0xdfff)
++					goto fail;
++
++			// 4-byte sequence (surrogate pairs, currently rare):
++			// 11101110wwwwzzzzyy + 110111yyyyxxxxxx
++			//     = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
++			// (uuuuu = wwww + 1)
++			// FIXME accept the surrogate code points (only)
++
++			} else
++				goto fail;
++		} else
++			uchar = c;
++		put_unaligned (cpu_to_le16 (uchar), cp++);
++		count++;
++		len--;
++	}
++	return count;
++fail:
++	return -1;
++}
++
++
++/**
++ * usb_gadget_get_string - fill out a string descriptor
++ * @table: of c strings encoded using UTF-8
++ * @id: string id, from low byte of wValue in get string descriptor
++ * @buf: at least 256 bytes
++ *
++ * Finds the UTF-8 string matching the ID, and converts it into a
++ * string descriptor in utf16-le.
++ * Returns length of descriptor (always even) or negative errno
++ *
++ * If your driver needs stings in multiple languages, you'll probably
++ * "switch (wIndex) { ... }"  in your ep0 string descriptor logic,
++ * using this routine after choosing which set of UTF-8 strings to use.
++ * Note that US-ASCII is a strict subset of UTF-8; any string bytes with
++ * the eighth bit set will be multibyte UTF-8 characters, not ISO-8859/1
++ * characters (which are also widely used in C strings).
++ */
++int
++usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf)
++{
++	struct usb_string	*s;
++	int			len;
++
++	/* descriptor 0 has the language id */
++	if (id == 0) {
++		buf [0] = 4;
++		buf [1] = USB_DT_STRING;
++		buf [2] = (u8) table->language;
++		buf [3] = (u8) (table->language >> 8);
++		return 4;
++	}
++	for (s = table->strings; s && s->s; s++)
++		if (s->id == id)
++			break;
++
++	/* unrecognized: stall. */
++	if (!s || !s->s)
++		return -EINVAL;
++
++	/* string descriptors have length, tag, then UTF16-LE text */
++	len = min ((size_t) 126, strlen (s->s));
++	memset (buf + 2, 0, 2 * len);	/* zero all the bytes */
++	len = utf8_to_utf16le(s->s, (u16 *)&buf[2], len);
++	if (len < 0)
++		return -EINVAL;
++	buf [0] = (len + 1) * 2;
++	buf [1] = USB_DT_STRING;
++	return buf [0];
++}
++
++
++/*-------------------------------------------------------------------------*/
++/*-------------------------------------------------------------------------*/
++
++
++/**
++ * usb_descriptor_fillbuf - fill buffer with descriptors
++ * @buf: Buffer to be filled
++ * @buflen: Size of buf
++ * @src: Array of descriptor pointers, terminated by null pointer.
++ *
++ * Copies descriptors into the buffer, returning the length or a
++ * negative error code if they can't all be copied.  Useful when
++ * assembling descriptors for an associated set of interfaces used
++ * as part of configuring a composite device; or in other cases where
++ * sets of descriptors need to be marshaled.
++ */
++int
++usb_descriptor_fillbuf(void *buf, unsigned buflen,
++		const struct usb_descriptor_header **src)
++{
++	u8	*dest = buf;
++
++	if (!src)
++		return -EINVAL;
++
++	/* fill buffer from src[] until null descriptor ptr */
++	for (; 0 != *src; src++) {
++		unsigned		len = (*src)->bLength;
++
++		if (len > buflen)
++			return -EINVAL;
++		memcpy(dest, *src, len);
++		buflen -= len;
++		dest += len;
++	}
++	return dest - (u8 *)buf;
++}
++
++
++/**
++ * usb_gadget_config_buf - builts a complete configuration descriptor
++ * @config: Header for the descriptor, including characteristics such
++ *	as power requirements and number of interfaces.
++ * @desc: Null-terminated vector of pointers to the descriptors (interface,
++ *	endpoint, etc) defining all functions in this device configuration.
++ * @buf: Buffer for the resulting configuration descriptor.
++ * @length: Length of buffer.  If this is not big enough to hold the
++ *	entire configuration descriptor, an error code will be returned.
++ *
++ * This copies descriptors into the response buffer, building a descriptor
++ * for that configuration.  It returns the buffer length or a negative
++ * status code.  The config.wTotalLength field is set to match the length
++ * of the result, but other descriptor fields (including power usage and
++ * interface count) must be set by the caller.
++ *
++ * Gadget drivers could use this when constructing a config descriptor
++ * in response to USB_REQ_GET_DESCRIPTOR.  They will need to patch the
++ * resulting bDescriptorType value if USB_DT_OTHER_SPEED_CONFIG is needed.
++ */
++int usb_gadget_config_buf(
++	const struct usb_config_descriptor	*config,
++	void					*buf,
++	unsigned				length,
++	const struct usb_descriptor_header	**desc
++)
++{
++	struct usb_config_descriptor		*cp = buf;
++	int					len;
++
++	/* config descriptor first */
++	if (length < USB_DT_CONFIG_SIZE || !desc)
++		return -EINVAL;
++	*cp = *config;
++
++	/* then interface/endpoint/class/vendor/... */
++	len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf,
++			length - USB_DT_CONFIG_SIZE, desc);
++	if (len < 0)
++		return len;
++	len += USB_DT_CONFIG_SIZE;
++	if (len > 0xffff)
++		return -EINVAL;
++
++	/* patch up the config descriptor */
++	cp->bLength = USB_DT_CONFIG_SIZE;
++	cp->bDescriptorType = USB_DT_CONFIG;
++	cp->wTotalLength = cpu_to_le16(len);
++	cp->bmAttributes |= USB_CONFIG_ATT_ONE;
++	return len;
++}
++
++/*-------------------------------------------------------------------------*/
++/*-------------------------------------------------------------------------*/
++
++
++#define RBUF_LEN (1024*1024)
++static int rbuf_start;
++static int rbuf_len;
++static __u8 rbuf[RBUF_LEN];
++
++/*-------------------------------------------------------------------------*/
++
++#define DRIVER_VERSION		"St Patrick's Day 2004"
++
++static const char shortname [] = "zero";
++static const char longname [] = "YAMAHA YST-MS35D USB Speaker  ";
++
++static const char source_sink [] = "source and sink data";
++static const char loopback [] = "loop input to output";
++
++/*-------------------------------------------------------------------------*/
++
++/*
++ * driver assumes self-powered hardware, and
++ * has no way for users to trigger remote wakeup.
++ *
++ * this version autoconfigures as much as possible,
++ * which is reasonable for most "bulk-only" drivers.
++ */
++static const char *EP_IN_NAME;		/* source */
++static const char *EP_OUT_NAME;		/* sink */
++
++/*-------------------------------------------------------------------------*/
++
++/* big enough to hold our biggest descriptor */
++#define USB_BUFSIZ	512
++
++struct zero_dev {
++	spinlock_t		lock;
++	struct usb_gadget	*gadget;
++	struct usb_request	*req;		/* for control responses */
++
++	/* when configured, we have one of two configs:
++	 * - source data (in to host) and sink it (out from host)
++	 * - or loop it back (out from host back in to host)
++	 */
++	u8			config;
++	struct usb_ep		*in_ep, *out_ep;
++
++	/* autoresume timer */
++	struct timer_list	resume;
++};
++
++#define xprintk(d,level,fmt,args...) \
++	dev_printk(level , &(d)->gadget->dev , fmt , ## args)
++
++#ifdef DEBUG
++#define DBG(dev,fmt,args...) \
++	xprintk(dev , KERN_DEBUG , fmt , ## args)
++#else
++#define DBG(dev,fmt,args...) \
++	do { } while (0)
++#endif /* DEBUG */
++
++#ifdef VERBOSE
++#define VDBG	DBG
++#else
++#define VDBG(dev,fmt,args...) \
++	do { } while (0)
++#endif /* VERBOSE */
++
++#define ERROR(dev,fmt,args...) \
++	xprintk(dev , KERN_ERR , fmt , ## args)
++#define WARN(dev,fmt,args...) \
++	xprintk(dev , KERN_WARNING , fmt , ## args)
++#define INFO(dev,fmt,args...) \
++	xprintk(dev , KERN_INFO , fmt , ## args)
++
++/*-------------------------------------------------------------------------*/
++
++static unsigned buflen = 4096;
++static unsigned qlen = 32;
++static unsigned pattern = 0;
++
++module_param (buflen, uint, S_IRUGO|S_IWUSR);
++module_param (qlen, uint, S_IRUGO|S_IWUSR);
++module_param (pattern, uint, S_IRUGO|S_IWUSR);
++
++/*
++ * if it's nonzero, autoresume says how many seconds to wait
++ * before trying to wake up the host after suspend.
++ */
++static unsigned autoresume = 0;
++module_param (autoresume, uint, 0);
++
++/*
++ * Normally the "loopback" configuration is second (index 1) so
++ * it's not the default.  Here's where to change that order, to
++ * work better with hosts where config changes are problematic.
++ * Or controllers (like superh) that only support one config.
++ */
++static int loopdefault = 0;
++
++module_param (loopdefault, bool, S_IRUGO|S_IWUSR);
++
++/*-------------------------------------------------------------------------*/
++
++/* Thanks to NetChip Technologies for donating this product ID.
++ *
++ * DO NOT REUSE THESE IDs with a protocol-incompatible driver!!  Ever!!
++ * Instead:  allocate your own, using normal USB-IF procedures.
++ */
++#ifndef	CONFIG_USB_ZERO_HNPTEST
++#define DRIVER_VENDOR_NUM	0x0525		/* NetChip */
++#define DRIVER_PRODUCT_NUM	0xa4a0		/* Linux-USB "Gadget Zero" */
++#else
++#define DRIVER_VENDOR_NUM	0x1a0a		/* OTG test device IDs */
++#define DRIVER_PRODUCT_NUM	0xbadd
++#endif
++
++/*-------------------------------------------------------------------------*/
++
++/*
++ * DESCRIPTORS ... most are static, but strings and (full)
++ * configuration descriptors are built on demand.
++ */
++
++/*
++#define STRING_MANUFACTURER		25
++#define STRING_PRODUCT			42
++#define STRING_SERIAL			101
++*/
++#define STRING_MANUFACTURER		1
++#define STRING_PRODUCT			2
++#define STRING_SERIAL			3
++
++#define STRING_SOURCE_SINK		250
++#define STRING_LOOPBACK			251
++
++/*
++ * This device advertises two configurations; these numbers work
++ * on a pxa250 as well as more flexible hardware.
++ */
++#define	CONFIG_SOURCE_SINK	3
++#define	CONFIG_LOOPBACK		2
++
++/*
++static struct usb_device_descriptor
++device_desc = {
++	.bLength =		sizeof device_desc,
++	.bDescriptorType =	USB_DT_DEVICE,
++
++	.bcdUSB =		__constant_cpu_to_le16 (0x0200),
++	.bDeviceClass =		USB_CLASS_VENDOR_SPEC,
++
++	.idVendor =		__constant_cpu_to_le16 (DRIVER_VENDOR_NUM),
++	.idProduct =		__constant_cpu_to_le16 (DRIVER_PRODUCT_NUM),
++	.iManufacturer =	STRING_MANUFACTURER,
++	.iProduct =		STRING_PRODUCT,
++	.iSerialNumber =	STRING_SERIAL,
++	.bNumConfigurations =	2,
++};
++*/
++static struct usb_device_descriptor
++device_desc = {
++	.bLength =		sizeof device_desc,
++	.bDescriptorType =	USB_DT_DEVICE,
++	.bcdUSB =		__constant_cpu_to_le16 (0x0100),
++	.bDeviceClass =		USB_CLASS_PER_INTERFACE,
++	.bDeviceSubClass =      0,
++	.bDeviceProtocol =      0,
++	.bMaxPacketSize0 =      64,
++	.bcdDevice =            __constant_cpu_to_le16 (0x0100),
++	.idVendor =		__constant_cpu_to_le16 (0x0499),
++	.idProduct =		__constant_cpu_to_le16 (0x3002),
++	.iManufacturer =	STRING_MANUFACTURER,
++	.iProduct =		STRING_PRODUCT,
++	.iSerialNumber =	STRING_SERIAL,
++	.bNumConfigurations =	1,
++};
++
++static struct usb_config_descriptor
++z_config = {
++	.bLength =		sizeof z_config,
++	.bDescriptorType =	USB_DT_CONFIG,
++
++	/* compute wTotalLength on the fly */
++	.bNumInterfaces =	2,
++	.bConfigurationValue =	1,
++	.iConfiguration =	0,
++	.bmAttributes =		0x40,
++	.bMaxPower =		0,	/* self-powered */
++};
++
++
++static struct usb_otg_descriptor
++otg_descriptor = {
++	.bLength =		sizeof otg_descriptor,
++	.bDescriptorType =	USB_DT_OTG,
++
++	.bmAttributes =		USB_OTG_SRP,
++};
++
++/* one interface in each configuration */
++#ifdef	CONFIG_USB_GADGET_DUALSPEED
++
++/*
++ * usb 2.0 devices need to expose both high speed and full speed
++ * descriptors, unless they only run at full speed.
++ *
++ * that means alternate endpoint descriptors (bigger packets)
++ * and a "device qualifier" ... plus more construction options
++ * for the config descriptor.
++ */
++
++static struct usb_qualifier_descriptor
++dev_qualifier = {
++	.bLength =		sizeof dev_qualifier,
++	.bDescriptorType =	USB_DT_DEVICE_QUALIFIER,
++
++	.bcdUSB =		__constant_cpu_to_le16 (0x0200),
++	.bDeviceClass =		USB_CLASS_VENDOR_SPEC,
++
++	.bNumConfigurations =	2,
++};
++
++
++struct usb_cs_as_general_descriptor {
++	__u8  bLength;
++	__u8  bDescriptorType;
++
++	__u8  bDescriptorSubType;
++	__u8  bTerminalLink;
++	__u8  bDelay;
++	__u16  wFormatTag;
++} __attribute__ ((packed));
++
++struct usb_cs_as_format_descriptor {
++	__u8  bLength;
++	__u8  bDescriptorType;
++
++	__u8  bDescriptorSubType;
++	__u8  bFormatType;
++	__u8  bNrChannels;
++	__u8  bSubframeSize;
++	__u8  bBitResolution;
++	__u8  bSamfreqType;
++	__u8  tLowerSamFreq[3];
++	__u8  tUpperSamFreq[3];
++} __attribute__ ((packed));
++
++static const struct usb_interface_descriptor
++z_audio_control_if_desc = {
++	.bLength =		sizeof z_audio_control_if_desc,
++	.bDescriptorType =	USB_DT_INTERFACE,
++	.bInterfaceNumber = 0,
++	.bAlternateSetting = 0,
++	.bNumEndpoints = 0,
++	.bInterfaceClass = USB_CLASS_AUDIO,
++	.bInterfaceSubClass = 0x1,
++	.bInterfaceProtocol = 0,
++	.iInterface = 0,
++};
++
++static const struct usb_interface_descriptor
++z_audio_if_desc = {
++	.bLength =		sizeof z_audio_if_desc,
++	.bDescriptorType =	USB_DT_INTERFACE,
++	.bInterfaceNumber = 1,
++	.bAlternateSetting = 0,
++	.bNumEndpoints = 0,
++	.bInterfaceClass = USB_CLASS_AUDIO,
++	.bInterfaceSubClass = 0x2,
++	.bInterfaceProtocol = 0,
++	.iInterface = 0,
++};
++
++static const struct usb_interface_descriptor
++z_audio_if_desc2 = {
++	.bLength =		sizeof z_audio_if_desc,
++	.bDescriptorType =	USB_DT_INTERFACE,
++	.bInterfaceNumber = 1,
++	.bAlternateSetting = 1,
++	.bNumEndpoints = 1,
++	.bInterfaceClass = USB_CLASS_AUDIO,
++	.bInterfaceSubClass = 0x2,
++	.bInterfaceProtocol = 0,
++	.iInterface = 0,
++};
++
++static const struct usb_cs_as_general_descriptor
++z_audio_cs_as_if_desc = {
++	.bLength = 7,
++	.bDescriptorType = 0x24,
++
++	.bDescriptorSubType = 0x01,
++	.bTerminalLink = 0x01,
++	.bDelay = 0x0,
++	.wFormatTag = __constant_cpu_to_le16 (0x0001)
++};
++
++
++static const struct usb_cs_as_format_descriptor
++z_audio_cs_as_format_desc = {
++	.bLength = 0xe,
++	.bDescriptorType = 0x24,
++
++	.bDescriptorSubType = 2,
++	.bFormatType = 1,
++	.bNrChannels = 1,
++	.bSubframeSize = 1,
++	.bBitResolution = 8,
++	.bSamfreqType = 0,
++	.tLowerSamFreq = {0x7e, 0x13, 0x00},
++	.tUpperSamFreq = {0xe2, 0xd6, 0x00},
++};
++
++static const struct usb_endpoint_descriptor
++z_iso_ep = {
++	.bLength = 0x09,
++	.bDescriptorType = 0x05,
++	.bEndpointAddress = 0x04,
++	.bmAttributes = 0x09,
++	.wMaxPacketSize = 0x0038,
++	.bInterval = 0x01,
++	.bRefresh = 0x00,
++	.bSynchAddress = 0x00,
++};
++
++static char z_iso_ep2[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++// 9 bytes
++static char z_ac_interface_header_desc[] =
++{ 0x09, 0x24, 0x01, 0x00, 0x01, 0x2b, 0x00, 0x01, 0x01 };
++
++// 12 bytes
++static char z_0[] = {0x0c, 0x24, 0x02, 0x01, 0x01, 0x01, 0x00, 0x02,
++		     0x03, 0x00, 0x00, 0x00};
++// 13 bytes
++static char z_1[] = {0x0d, 0x24, 0x06, 0x02, 0x01, 0x02, 0x15, 0x00,
++		     0x02, 0x00, 0x02, 0x00, 0x00};
++// 9 bytes
++static char z_2[] = {0x09, 0x24, 0x03, 0x03, 0x01, 0x03, 0x00, 0x02,
++		     0x00};
++
++static char za_0[] = {0x09, 0x04, 0x01, 0x02, 0x01, 0x01, 0x02, 0x00,
++		      0x00};
++
++static char za_1[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00};
++
++static char za_2[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x01, 0x08, 0x00,
++		      0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00};
++
++static char za_3[] = {0x09, 0x05, 0x04, 0x09, 0x70, 0x00, 0x01, 0x00,
++		      0x00};
++
++static char za_4[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++static char za_5[] = {0x09, 0x04, 0x01, 0x03, 0x01, 0x01, 0x02, 0x00,
++		      0x00};
++
++static char za_6[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00};
++
++static char za_7[] = {0x0e, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x00,
++		      0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00};
++
++static char za_8[] = {0x09, 0x05, 0x04, 0x09, 0x70, 0x00, 0x01, 0x00,
++		      0x00};
++
++static char za_9[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++static char za_10[] = {0x09, 0x04, 0x01, 0x04, 0x01, 0x01, 0x02, 0x00,
++		       0x00};
++
++static char za_11[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00};
++
++static char za_12[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x02, 0x10, 0x00,
++		       0x73, 0x13, 0x00, 0xe2, 0xd6, 0x00};
++
++static char za_13[] = {0x09, 0x05, 0x04, 0x09, 0xe0, 0x00, 0x01, 0x00,
++		       0x00};
++
++static char za_14[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++static char za_15[] = {0x09, 0x04, 0x01, 0x05, 0x01, 0x01, 0x02, 0x00,
++		       0x00};
++
++static char za_16[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00};
++
++static char za_17[] = {0x0e, 0x24, 0x02, 0x01, 0x01, 0x03, 0x14, 0x00,
++		       0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00};
++
++static char za_18[] = {0x09, 0x05, 0x04, 0x09, 0xa8, 0x00, 0x01, 0x00,
++		       0x00};
++
++static char za_19[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++static char za_20[] = {0x09, 0x04, 0x01, 0x06, 0x01, 0x01, 0x02, 0x00,
++		       0x00};
++
++static char za_21[] = {0x07, 0x24, 0x01, 0x01, 0x00, 0x01, 0x00};
++
++static char za_22[] = {0x0e, 0x24, 0x02, 0x01, 0x02, 0x03, 0x14, 0x00,
++		       0x7e, 0x13, 0x00, 0xe2, 0xd6, 0x00};
++
++static char za_23[] = {0x09, 0x05, 0x04, 0x09, 0x50, 0x01, 0x01, 0x00,
++		       0x00};
++
++static char za_24[] = {0x07, 0x25, 0x01, 0x00, 0x02, 0x00, 0x02};
++
++
++
++static const struct usb_descriptor_header *z_function [] = {
++	(struct usb_descriptor_header *) &z_audio_control_if_desc,
++	(struct usb_descriptor_header *) &z_ac_interface_header_desc,
++	(struct usb_descriptor_header *) &z_0,
++	(struct usb_descriptor_header *) &z_1,
++	(struct usb_descriptor_header *) &z_2,
++	(struct usb_descriptor_header *) &z_audio_if_desc,
++	(struct usb_descriptor_header *) &z_audio_if_desc2,
++	(struct usb_descriptor_header *) &z_audio_cs_as_if_desc,
++	(struct usb_descriptor_header *) &z_audio_cs_as_format_desc,
++	(struct usb_descriptor_header *) &z_iso_ep,
++	(struct usb_descriptor_header *) &z_iso_ep2,
++	(struct usb_descriptor_header *) &za_0,
++	(struct usb_descriptor_header *) &za_1,
++	(struct usb_descriptor_header *) &za_2,
++	(struct usb_descriptor_header *) &za_3,
++	(struct usb_descriptor_header *) &za_4,
++	(struct usb_descriptor_header *) &za_5,
++	(struct usb_descriptor_header *) &za_6,
++	(struct usb_descriptor_header *) &za_7,
++	(struct usb_descriptor_header *) &za_8,
++	(struct usb_descriptor_header *) &za_9,
++	(struct usb_descriptor_header *) &za_10,
++	(struct usb_descriptor_header *) &za_11,
++	(struct usb_descriptor_header *) &za_12,
++	(struct usb_descriptor_header *) &za_13,
++	(struct usb_descriptor_header *) &za_14,
++	(struct usb_descriptor_header *) &za_15,
++	(struct usb_descriptor_header *) &za_16,
++	(struct usb_descriptor_header *) &za_17,
++	(struct usb_descriptor_header *) &za_18,
++	(struct usb_descriptor_header *) &za_19,
++	(struct usb_descriptor_header *) &za_20,
++	(struct usb_descriptor_header *) &za_21,
++	(struct usb_descriptor_header *) &za_22,
++	(struct usb_descriptor_header *) &za_23,
++	(struct usb_descriptor_header *) &za_24,
++	NULL,
++};
++
++/* maxpacket and other transfer characteristics vary by speed. */
++#define ep_desc(g,hs,fs) (((g)->speed==USB_SPEED_HIGH)?(hs):(fs))
++
++#else
++
++/* if there's no high speed support, maxpacket doesn't change. */
++#define ep_desc(g,hs,fs) fs
++
++#endif	/* !CONFIG_USB_GADGET_DUALSPEED */
++
++static char				manufacturer [40];
++//static char				serial [40];
++static char				serial [] = "Ser 00 em";
++
++/* static strings, in UTF-8 */
++static struct usb_string		strings [] = {
++	{ STRING_MANUFACTURER, manufacturer, },
++	{ STRING_PRODUCT, longname, },
++	{ STRING_SERIAL, serial, },
++	{ STRING_LOOPBACK, loopback, },
++	{ STRING_SOURCE_SINK, source_sink, },
++	{  }			/* end of list */
++};
++
++static struct usb_gadget_strings	stringtab = {
++	.language	= 0x0409,	/* en-us */
++	.strings	= strings,
++};
++
++/*
++ * config descriptors are also handcrafted.  these must agree with code
++ * that sets configurations, and with code managing interfaces and their
++ * altsettings.  other complexity may come from:
++ *
++ *  - high speed support, including "other speed config" rules
++ *  - multiple configurations
++ *  - interfaces with alternate settings
++ *  - embedded class or vendor-specific descriptors
++ *
++ * this handles high speed, and has a second config that could as easily
++ * have been an alternate interface setting (on most hardware).
++ *
++ * NOTE:  to demonstrate (and test) more USB capabilities, this driver
++ * should include an altsetting to test interrupt transfers, including
++ * high bandwidth modes at high speed.  (Maybe work like Intel's test
++ * device?)
++ */
++static int
++config_buf (struct usb_gadget *gadget, u8 *buf, u8 type, unsigned index)
++{
++	int len;
++	const struct usb_descriptor_header **function;
++
++	function = z_function;
++	len = usb_gadget_config_buf (&z_config, buf, USB_BUFSIZ, function);
++	if (len < 0)
++		return len;
++	((struct usb_config_descriptor *) buf)->bDescriptorType = type;
++	return len;
++}
++
++/*-------------------------------------------------------------------------*/
++
++static struct usb_request *
++alloc_ep_req (struct usb_ep *ep, unsigned length)
++{
++	struct usb_request	*req;
++
++	req = usb_ep_alloc_request (ep, GFP_ATOMIC);
++	if (req) {
++		req->length = length;
++		req->buf = usb_ep_alloc_buffer (ep, length,
++				&req->dma, GFP_ATOMIC);
++		if (!req->buf) {
++			usb_ep_free_request (ep, req);
++			req = NULL;
++		}
++	}
++	return req;
++}
++
++static void free_ep_req (struct usb_ep *ep, struct usb_request *req)
++{
++	if (req->buf)
++		usb_ep_free_buffer (ep, req->buf, req->dma, req->length);
++	usb_ep_free_request (ep, req);
++}
++
++/*-------------------------------------------------------------------------*/
++
++/* optionally require specific source/sink data patterns  */
++
++static int
++check_read_data (
++	struct zero_dev		*dev,
++	struct usb_ep		*ep,
++	struct usb_request	*req
++)
++{
++	unsigned	i;
++	u8		*buf = req->buf;
++
++	for (i = 0; i < req->actual; i++, buf++) {
++		switch (pattern) {
++		/* all-zeroes has no synchronization issues */
++		case 0:
++			if (*buf == 0)
++				continue;
++			break;
++		/* mod63 stays in sync with short-terminated transfers,
++		 * or otherwise when host and gadget agree on how large
++		 * each usb transfer request should be.  resync is done
++		 * with set_interface or set_config.
++		 */
++		case 1:
++			if (*buf == (u8)(i % 63))
++				continue;
++			break;
++		}
++		ERROR (dev, "bad OUT byte, buf [%d] = %d\n", i, *buf);
++		usb_ep_set_halt (ep);
++		return -EINVAL;
++	}
++	return 0;
++}
++
++/*-------------------------------------------------------------------------*/
++
++static void zero_reset_config (struct zero_dev *dev)
++{
++	if (dev->config == 0)
++		return;
++
++	DBG (dev, "reset config\n");
++
++	/* just disable endpoints, forcing completion of pending i/o.
++	 * all our completion handlers free their requests in this case.
++	 */
++	if (dev->in_ep) {
++		usb_ep_disable (dev->in_ep);
++		dev->in_ep = NULL;
++	}
++	if (dev->out_ep) {
++		usb_ep_disable (dev->out_ep);
++		dev->out_ep = NULL;
++	}
++	dev->config = 0;
++	del_timer (&dev->resume);
++}
++
++#define _write(f, buf, sz) (f->f_op->write(f, buf, sz, &f->f_pos))
++
++static void
++zero_isoc_complete (struct usb_ep *ep, struct usb_request *req)
++{
++	struct zero_dev	*dev = ep->driver_data;
++	int		status = req->status;
++	int i, j;
++
++	switch (status) {
++
++	case 0: 			/* normal completion? */
++		//printk ("\nzero ---------------> isoc normal completion %d bytes\n", req->actual);
++		for (i=0, j=rbuf_start; i<req->actual; i++) {
++			//printk ("%02x ", ((__u8*)req->buf)[i]);
++			rbuf[j] = ((__u8*)req->buf)[i];
++			j++;
++			if (j >= RBUF_LEN) j=0;
++		}
++		rbuf_start = j;
++		//printk ("\n\n");
++
++		if (rbuf_len < RBUF_LEN) {
++			rbuf_len += req->actual;
++			if (rbuf_len > RBUF_LEN) {
++				rbuf_len = RBUF_LEN;
++			}
++		}
++
++		break;
++
++	/* this endpoint is normally active while we're configured */
++	case -ECONNABORTED: 		/* hardware forced ep reset */
++	case -ECONNRESET:		/* request dequeued */
++	case -ESHUTDOWN:		/* disconnect from host */
++		VDBG (dev, "%s gone (%d), %d/%d\n", ep->name, status,
++				req->actual, req->length);
++		if (ep == dev->out_ep)
++			check_read_data (dev, ep, req);
++		free_ep_req (ep, req);
++		return;
++
++	case -EOVERFLOW:		/* buffer overrun on read means that
++					 * we didn't provide a big enough
++					 * buffer.
++					 */
++	default:
++#if 1
++		DBG (dev, "%s complete --> %d, %d/%d\n", ep->name,
++				status, req->actual, req->length);
++#endif
++	case -EREMOTEIO:		/* short read */
++		break;
++	}
++
++	status = usb_ep_queue (ep, req, GFP_ATOMIC);
++	if (status) {
++		ERROR (dev, "kill %s:  resubmit %d bytes --> %d\n",
++				ep->name, req->length, status);
++		usb_ep_set_halt (ep);
++		/* FIXME recover later ... somehow */
++	}
++}
++
++static struct usb_request *
++zero_start_isoc_ep (struct usb_ep *ep, int gfp_flags)
++{
++	struct usb_request	*req;
++	int			status;
++
++	req = alloc_ep_req (ep, 512);
++	if (!req)
++		return NULL;
++
++	req->complete = zero_isoc_complete;
++
++	status = usb_ep_queue (ep, req, gfp_flags);
++	if (status) {
++		struct zero_dev	*dev = ep->driver_data;
++
++		ERROR (dev, "start %s --> %d\n", ep->name, status);
++		free_ep_req (ep, req);
++		req = NULL;
++	}
++
++	return req;
++}
++
++/* change our operational config.  this code must agree with the code
++ * that returns config descriptors, and altsetting code.
++ *
++ * it's also responsible for power management interactions. some
++ * configurations might not work with our current power sources.
++ *
++ * note that some device controller hardware will constrain what this
++ * code can do, perhaps by disallowing more than one configuration or
++ * by limiting configuration choices (like the pxa2xx).
++ */
++static int
++zero_set_config (struct zero_dev *dev, unsigned number, int gfp_flags)
++{
++	int			result = 0;
++	struct usb_gadget	*gadget = dev->gadget;
++	const struct usb_endpoint_descriptor	*d;
++	struct usb_ep		*ep;
++
++	if (number == dev->config)
++		return 0;
++
++	zero_reset_config (dev);
++
++	gadget_for_each_ep (ep, gadget) {
++
++		if (strcmp (ep->name, "ep4") == 0) {
++
++			d = (struct usb_endpoint_descripter *)&za_23; // isoc ep desc for audio i/f alt setting 6
++			result = usb_ep_enable (ep, d);
++
++			if (result == 0) {
++				ep->driver_data = dev;
++				dev->in_ep = ep;
++
++				if (zero_start_isoc_ep (ep, gfp_flags) != 0) {
++
++					dev->in_ep = ep;
++					continue;
++				}
++
++				usb_ep_disable (ep);
++				result = -EIO;
++			}
++		}
++
++	}
++
++	dev->config = number;
++	return result;
++}
++
++/*-------------------------------------------------------------------------*/
++
++static void zero_setup_complete (struct usb_ep *ep, struct usb_request *req)
++{
++	if (req->status || req->actual != req->length)
++		DBG ((struct zero_dev *) ep->driver_data,
++				"setup complete --> %d, %d/%d\n",
++				req->status, req->actual, req->length);
++}
++
++/*
++ * The setup() callback implements all the ep0 functionality that's
++ * not handled lower down, in hardware or the hardware driver (like
++ * device and endpoint feature flags, and their status).  It's all
++ * housekeeping for the gadget function we're implementing.  Most of
++ * the work is in config-specific setup.
++ */
++static int
++zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
++{
++	struct zero_dev		*dev = get_gadget_data (gadget);
++	struct usb_request	*req = dev->req;
++	int			value = -EOPNOTSUPP;
++
++	/* usually this stores reply data in the pre-allocated ep0 buffer,
++	 * but config change events will reconfigure hardware.
++	 */
++	req->zero = 0;
++	switch (ctrl->bRequest) {
++
++	case USB_REQ_GET_DESCRIPTOR:
++
++		switch (ctrl->wValue >> 8) {
++
++		case USB_DT_DEVICE:
++			value = min (ctrl->wLength, (u16) sizeof device_desc);
++			memcpy (req->buf, &device_desc, value);
++			break;
++#ifdef CONFIG_USB_GADGET_DUALSPEED
++		case USB_DT_DEVICE_QUALIFIER:
++			if (!gadget->is_dualspeed)
++				break;
++			value = min (ctrl->wLength, (u16) sizeof dev_qualifier);
++			memcpy (req->buf, &dev_qualifier, value);
++			break;
++
++		case USB_DT_OTHER_SPEED_CONFIG:
++			if (!gadget->is_dualspeed)
++				break;
++			// FALLTHROUGH
++#endif /* CONFIG_USB_GADGET_DUALSPEED */
++		case USB_DT_CONFIG:
++			value = config_buf (gadget, req->buf,
++					ctrl->wValue >> 8,
++					ctrl->wValue & 0xff);
++			if (value >= 0)
++				value = min (ctrl->wLength, (u16) value);
++			break;
++
++		case USB_DT_STRING:
++			/* wIndex == language code.
++			 * this driver only handles one language, you can
++			 * add string tables for other languages, using
++			 * any UTF-8 characters
++			 */
++			value = usb_gadget_get_string (&stringtab,
++					ctrl->wValue & 0xff, req->buf);
++			if (value >= 0) {
++				value = min (ctrl->wLength, (u16) value);
++			}
++			break;
++		}
++		break;
++
++	/* currently two configs, two speeds */
++	case USB_REQ_SET_CONFIGURATION:
++		if (ctrl->bRequestType != 0)
++			goto unknown;
++
++		spin_lock (&dev->lock);
++		value = zero_set_config (dev, ctrl->wValue, GFP_ATOMIC);
++		spin_unlock (&dev->lock);
++		break;
++	case USB_REQ_GET_CONFIGURATION:
++		if (ctrl->bRequestType != USB_DIR_IN)
++			goto unknown;
++		*(u8 *)req->buf = dev->config;
++		value = min (ctrl->wLength, (u16) 1);
++		break;
++
++	/* until we add altsetting support, or other interfaces,
++	 * only 0/0 are possible.  pxa2xx only supports 0/0 (poorly)
++	 * and already killed pending endpoint I/O.
++	 */
++	case USB_REQ_SET_INTERFACE:
++
++		if (ctrl->bRequestType != USB_RECIP_INTERFACE)
++			goto unknown;
++		spin_lock (&dev->lock);
++		if (dev->config) {
++			u8		config = dev->config;
++
++			/* resets interface configuration, forgets about
++			 * previous transaction state (queued bufs, etc)
++			 * and re-inits endpoint state (toggle etc)
++			 * no response queued, just zero status == success.
++			 * if we had more than one interface we couldn't
++			 * use this "reset the config" shortcut.
++			 */
++			zero_reset_config (dev);
++			zero_set_config (dev, config, GFP_ATOMIC);
++			value = 0;
++		}
++		spin_unlock (&dev->lock);
++		break;
++	case USB_REQ_GET_INTERFACE:
++		if ((ctrl->bRequestType == 0x21) && (ctrl->wIndex == 0x02)) {
++			value = ctrl->wLength;
++			break;
++		}
++		else {
++			if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE))
++				goto unknown;
++			if (!dev->config)
++				break;
++			if (ctrl->wIndex != 0) {
++				value = -EDOM;
++				break;
++			}
++			*(u8 *)req->buf = 0;
++			value = min (ctrl->wLength, (u16) 1);
++		}
++		break;
++
++	/*
++	 * These are the same vendor-specific requests supported by
++	 * Intel's USB 2.0 compliance test devices.  We exceed that
++	 * device spec by allowing multiple-packet requests.
++	 */
++	case 0x5b:	/* control WRITE test -- fill the buffer */
++		if (ctrl->bRequestType != (USB_DIR_OUT|USB_TYPE_VENDOR))
++			goto unknown;
++		if (ctrl->wValue || ctrl->wIndex)
++			break;
++		/* just read that many bytes into the buffer */
++		if (ctrl->wLength > USB_BUFSIZ)
++			break;
++		value = ctrl->wLength;
++		break;
++	case 0x5c:	/* control READ test -- return the buffer */
++		if (ctrl->bRequestType != (USB_DIR_IN|USB_TYPE_VENDOR))
++			goto unknown;
++		if (ctrl->wValue || ctrl->wIndex)
++			break;
++		/* expect those bytes are still in the buffer; send back */
++		if (ctrl->wLength > USB_BUFSIZ
++				|| ctrl->wLength != req->length)
++			break;
++		value = ctrl->wLength;
++		break;
++
++	case 0x01: // SET_CUR
++	case 0x02:
++	case 0x03:
++	case 0x04:
++	case 0x05:
++		value = ctrl->wLength;
++		break;
++	case 0x81:
++		switch (ctrl->wValue) {
++		case 0x0201:
++		case 0x0202:
++			((u8*)req->buf)[0] = 0x00;
++			((u8*)req->buf)[1] = 0xe3;
++			break;
++		case 0x0300:
++		case 0x0500:
++			((u8*)req->buf)[0] = 0x00;
++			break;
++		}
++		//((u8*)req->buf)[0] = 0x81;
++		//((u8*)req->buf)[1] = 0x81;
++		value = ctrl->wLength;
++		break;
++	case 0x82:
++		switch (ctrl->wValue) {
++		case 0x0201:
++		case 0x0202:
++			((u8*)req->buf)[0] = 0x00;
++			((u8*)req->buf)[1] = 0xc3;
++			break;
++		case 0x0300:
++		case 0x0500:
++			((u8*)req->buf)[0] = 0x00;
++			break;
++		}
++		//((u8*)req->buf)[0] = 0x82;
++		//((u8*)req->buf)[1] = 0x82;
++		value = ctrl->wLength;
++		break;
++	case 0x83:
++		switch (ctrl->wValue) {
++		case 0x0201:
++		case 0x0202:
++			((u8*)req->buf)[0] = 0x00;
++			((u8*)req->buf)[1] = 0x00;
++			break;
++		case 0x0300:
++			((u8*)req->buf)[0] = 0x60;
++			break;
++		case 0x0500:
++			((u8*)req->buf)[0] = 0x18;
++			break;
++		}
++		//((u8*)req->buf)[0] = 0x83;
++		//((u8*)req->buf)[1] = 0x83;
++		value = ctrl->wLength;
++		break;
++	case 0x84:
++		switch (ctrl->wValue) {
++		case 0x0201:
++		case 0x0202:
++			((u8*)req->buf)[0] = 0x00;
++			((u8*)req->buf)[1] = 0x01;
++			break;
++		case 0x0300:
++		case 0x0500:
++			((u8*)req->buf)[0] = 0x08;
++			break;
++		}
++		//((u8*)req->buf)[0] = 0x84;
++		//((u8*)req->buf)[1] = 0x84;
++		value = ctrl->wLength;
++		break;
++	case 0x85:
++		((u8*)req->buf)[0] = 0x85;
++		((u8*)req->buf)[1] = 0x85;
++		value = ctrl->wLength;
++		break;
++
++
++	default:
++unknown:
++		printk("unknown control req%02x.%02x v%04x i%04x l%d\n",
++			ctrl->bRequestType, ctrl->bRequest,
++			ctrl->wValue, ctrl->wIndex, ctrl->wLength);
++	}
++
++	/* respond with data transfer before status phase? */
++	if (value >= 0) {
++		req->length = value;
++		req->zero = value < ctrl->wLength
++				&& (value % gadget->ep0->maxpacket) == 0;
++		value = usb_ep_queue (gadget->ep0, req, GFP_ATOMIC);
++		if (value < 0) {
++			DBG (dev, "ep_queue < 0 --> %d\n", value);
++			req->status = 0;
++			zero_setup_complete (gadget->ep0, req);
++		}
++	}
++
++	/* device either stalls (value < 0) or reports success */
++	return value;
++}
++
++static void
++zero_disconnect (struct usb_gadget *gadget)
++{
++	struct zero_dev		*dev = get_gadget_data (gadget);
++	unsigned long		flags;
++
++	spin_lock_irqsave (&dev->lock, flags);
++	zero_reset_config (dev);
++
++	/* a more significant application might have some non-usb
++	 * activities to quiesce here, saving resources like power
++	 * or pushing the notification up a network stack.
++	 */
++	spin_unlock_irqrestore (&dev->lock, flags);
++
++	/* next we may get setup() calls to enumerate new connections;
++	 * or an unbind() during shutdown (including removing module).
++	 */
++}
++
++static void
++zero_autoresume (unsigned long _dev)
++{
++	struct zero_dev	*dev = (struct zero_dev *) _dev;
++	int		status;
++
++	/* normally the host would be woken up for something
++	 * more significant than just a timer firing...
++	 */
++	if (dev->gadget->speed != USB_SPEED_UNKNOWN) {
++		status = usb_gadget_wakeup (dev->gadget);
++		DBG (dev, "wakeup --> %d\n", status);
++	}
++}
++
++/*-------------------------------------------------------------------------*/
++
++static void
++zero_unbind (struct usb_gadget *gadget)
++{
++	struct zero_dev		*dev = get_gadget_data (gadget);
++
++	DBG (dev, "unbind\n");
++
++	/* we've already been disconnected ... no i/o is active */
++	if (dev->req)
++		free_ep_req (gadget->ep0, dev->req);
++	del_timer_sync (&dev->resume);
++	kfree (dev);
++	set_gadget_data (gadget, NULL);
++}
++
++static int
++zero_bind (struct usb_gadget *gadget)
++{
++	struct zero_dev		*dev;
++	//struct usb_ep		*ep;
++
++	printk("binding\n");
++	/*
++	 * DRIVER POLICY CHOICE:  you may want to do this differently.
++	 * One thing to avoid is reusing a bcdDevice revision code
++	 * with different host-visible configurations or behavior
++	 * restrictions -- using ep1in/ep2out vs ep1out/ep3in, etc
++	 */
++	//device_desc.bcdDevice = __constant_cpu_to_le16 (0x0201);
++
++
++	/* ok, we made sense of the hardware ... */
++	dev = kzalloc (sizeof *dev, SLAB_KERNEL);
++	if (!dev)
++		return -ENOMEM;
++	spin_lock_init (&dev->lock);
++	dev->gadget = gadget;
++	set_gadget_data (gadget, dev);
++
++	/* preallocate control response and buffer */
++	dev->req = usb_ep_alloc_request (gadget->ep0, GFP_KERNEL);
++	if (!dev->req)
++		goto enomem;
++	dev->req->buf = usb_ep_alloc_buffer (gadget->ep0, USB_BUFSIZ,
++				&dev->req->dma, GFP_KERNEL);
++	if (!dev->req->buf)
++		goto enomem;
++
++	dev->req->complete = zero_setup_complete;
++
++	device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket;
++
++#ifdef CONFIG_USB_GADGET_DUALSPEED
++	/* assume ep0 uses the same value for both speeds ... */
++	dev_qualifier.bMaxPacketSize0 = device_desc.bMaxPacketSize0;
++
++	/* and that all endpoints are dual-speed */
++	//hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress;
++	//hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress;
++#endif
++
++	usb_gadget_set_selfpowered (gadget);
++
++	init_timer (&dev->resume);
++	dev->resume.function = zero_autoresume;
++	dev->resume.data = (unsigned long) dev;
++
++	gadget->ep0->driver_data = dev;
++
++	INFO (dev, "%s, version: " DRIVER_VERSION "\n", longname);
++	INFO (dev, "using %s, OUT %s IN %s\n", gadget->name,
++		EP_OUT_NAME, EP_IN_NAME);
++
++	snprintf (manufacturer, sizeof manufacturer,
++		UTS_SYSNAME " " UTS_RELEASE " with %s",
++		gadget->name);
++
++	return 0;
++
++enomem:
++	zero_unbind (gadget);
++	return -ENOMEM;
++}
++
++/*-------------------------------------------------------------------------*/
++
++static void
++zero_suspend (struct usb_gadget *gadget)
++{
++	struct zero_dev		*dev = get_gadget_data (gadget);
++
++	if (gadget->speed == USB_SPEED_UNKNOWN)
++		return;
++
++	if (autoresume) {
++		mod_timer (&dev->resume, jiffies + (HZ * autoresume));
++		DBG (dev, "suspend, wakeup in %d seconds\n", autoresume);
++	} else
++		DBG (dev, "suspend\n");
++}
++
++static void
++zero_resume (struct usb_gadget *gadget)
++{
++	struct zero_dev		*dev = get_gadget_data (gadget);
++
++	DBG (dev, "resume\n");
++	del_timer (&dev->resume);
++}
++
++
++/*-------------------------------------------------------------------------*/
++
++static struct usb_gadget_driver zero_driver = {
++#ifdef CONFIG_USB_GADGET_DUALSPEED
++	.speed		= USB_SPEED_HIGH,
++#else
++	.speed		= USB_SPEED_FULL,
++#endif
++	.function	= (char *) longname,
++	.bind		= zero_bind,
++	.unbind		= zero_unbind,
++
++	.setup		= zero_setup,
++	.disconnect	= zero_disconnect,
++
++	.suspend	= zero_suspend,
++	.resume		= zero_resume,
++
++	.driver 	= {
++		.name		= (char *) shortname,
++		// .shutdown = ...
++		// .suspend = ...
++		// .resume = ...
++	},
++};
++
++MODULE_AUTHOR ("David Brownell");
++MODULE_LICENSE ("Dual BSD/GPL");
++
++static struct proc_dir_entry *pdir, *pfile;
++
++static int isoc_read_data (char *page, char **start,
++			   off_t off, int count,
++			   int *eof, void *data)
++{
++	int i;
++	static int c = 0;
++	static int done = 0;
++	static int s = 0;
++
++/*
++	printk ("\ncount: %d\n", count);
++	printk ("rbuf_start: %d\n", rbuf_start);
++	printk ("rbuf_len: %d\n", rbuf_len);
++	printk ("off: %d\n", off);
++	printk ("start: %p\n\n", *start);
++*/
++	if (done) {
++		c = 0;
++		done = 0;
++		*eof = 1;
++		return 0;
++	}
++
++	if (c == 0) {
++		if (rbuf_len == RBUF_LEN)
++			s = rbuf_start;
++		else s = 0;
++	}
++
++	for (i=0; i<count && c<rbuf_len; i++, c++) {
++		page[i] = rbuf[(c+s) % RBUF_LEN];
++	}
++	*start = page;
++
++	if (c >= rbuf_len) {
++		*eof = 1;
++		done = 1;
++	}
++
++
++	return i;
++}
++
++static int __init init (void)
++{
++
++	int retval = 0;
++
++	pdir = proc_mkdir("isoc_test", NULL);
++	if(pdir == NULL) {
++		retval = -ENOMEM;
++		printk("Error creating dir\n");
++		goto done;
++	}
++	pdir->owner = THIS_MODULE;
++
++	pfile = create_proc_read_entry("isoc_data",
++				       0444, pdir,
++				       isoc_read_data,
++				       NULL);
++	if (pfile == NULL) {
++		retval = -ENOMEM;
++		printk("Error creating file\n");
++		goto no_file;
++	}
++	pfile->owner = THIS_MODULE;
++
++	return usb_gadget_register_driver (&zero_driver);
++
++ no_file:
++	remove_proc_entry("isoc_data", NULL);
++ done:
++	return retval;
++}
++module_init (init);
++
++static void __exit cleanup (void)
++{
++
++	usb_gadget_unregister_driver (&zero_driver);
++
++	remove_proc_entry("isoc_data", pdir);
++	remove_proc_entry("isoc_test", NULL);
++}
++module_exit (cleanup);
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_cfi_common.h
+@@ -0,0 +1,142 @@
++/* ==========================================================================
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#if !defined(__DWC_CFI_COMMON_H__)
++#define __DWC_CFI_COMMON_H__
++
++//#include <linux/types.h>
++
++/**
++ * @file
++ *
++ * This file contains the CFI specific common constants, interfaces
++ * (functions and macros) and structures for Linux. No PCD specific
++ * data structure or definition is to be included in this file.
++ *
++ */
++
++/** This is a request for all Core Features */
++#define VEN_CORE_GET_FEATURES		0xB1
++
++/** This is a request to get the value of a specific Core Feature */
++#define VEN_CORE_GET_FEATURE		0xB2
++
++/** This command allows the host to set the value of a specific Core Feature */
++#define VEN_CORE_SET_FEATURE		0xB3
++
++/** This command allows the host to set the default values of
++ * either all or any specific Core Feature
++ */
++#define VEN_CORE_RESET_FEATURES		0xB4
++
++/** This command forces the PCD to write the deferred values of a Core Features */
++#define VEN_CORE_ACTIVATE_FEATURES	0xB5
++
++/** This request reads a DWORD value from a register at the specified offset */
++#define VEN_CORE_READ_REGISTER		0xB6
++
++/** This request writes a DWORD value into a register at the specified offset */
++#define VEN_CORE_WRITE_REGISTER		0xB7
++
++/** This structure is the header of the Core Features dataset returned to
++ *  the Host
++ */
++struct cfi_all_features_header {
++/** The features header structure length is */
++#define CFI_ALL_FEATURES_HDR_LEN		8
++	/**
++	 * The total length of the features dataset returned to the Host
++	 */
++	uint16_t wTotalLen;
++
++	/**
++	 * CFI version number inBinary-Coded Decimal (i.e., 1.00 is 100H).
++	 * This field identifies the version of the CFI Specification with which
++	 * the device is compliant.
++	 */
++	uint16_t wVersion;
++
++	/** The ID of the Core */
++	uint16_t wCoreID;
++#define CFI_CORE_ID_UDC		1
++#define CFI_CORE_ID_OTG		2
++#define CFI_CORE_ID_WUDEV	3
++
++	/** Number of features returned by VEN_CORE_GET_FEATURES request */
++	uint16_t wNumFeatures;
++} UPACKED;
++
++typedef struct cfi_all_features_header cfi_all_features_header_t;
++
++/** This structure is a header of the Core Feature descriptor dataset returned to
++ *  the Host after the VEN_CORE_GET_FEATURES request
++ */
++struct cfi_feature_desc_header {
++#define CFI_FEATURE_DESC_HDR_LEN	8
++
++	/** The feature ID */
++	uint16_t wFeatureID;
++
++	/** Length of this feature descriptor in bytes - including the
++	 * length of the feature name string
++	 */
++	uint16_t wLength;
++
++	/** The data length of this feature in bytes */
++	uint16_t wDataLength;
++
++	/**
++	 * Attributes of this features
++	 * D0: Access rights
++	 * 0 - Read/Write
++	 * 1 - Read only
++	 */
++	uint8_t bmAttributes;
++#define CFI_FEATURE_ATTR_RO		1
++#define CFI_FEATURE_ATTR_RW		0
++
++	/** Length of the feature name in bytes */
++	uint8_t bNameLen;
++
++	/** The feature name buffer */
++	//uint8_t *name;
++} UPACKED;
++
++typedef struct cfi_feature_desc_header cfi_feature_desc_header_t;
++
++/**
++ * This structure describes a NULL terminated string referenced by its id field.
++ * It is very similar to usb_string structure but has the id field type set to 16-bit.
++ */
++struct cfi_string {
++	uint16_t id;
++	const uint8_t *s;
++};
++typedef struct cfi_string cfi_string_t;
++
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_adp.c
+@@ -0,0 +1,854 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_adp.c $
++ * $Revision: #12 $
++ * $Date: 2011/10/26 $
++ * $Change: 1873028 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#include "dwc_os.h"
++#include "dwc_otg_regs.h"
++#include "dwc_otg_cil.h"
++#include "dwc_otg_adp.h"
++
++/** @file
++ *
++ * This file contains the most of the Attach Detect Protocol implementation for
++ * the driver to support OTG Rev2.0.
++ *
++ */
++
++void dwc_otg_adp_write_reg(dwc_otg_core_if_t * core_if, uint32_t value)
++{
++	adpctl_data_t adpctl;
++
++	adpctl.d32 = value;
++	adpctl.b.ar = 0x2;
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->adpctl, adpctl.d32);
++
++	while (adpctl.b.ar) {
++		adpctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->adpctl);
++	}
++
++}
++
++/**
++ * Function is called to read ADP registers
++ */
++uint32_t dwc_otg_adp_read_reg(dwc_otg_core_if_t * core_if)
++{
++	adpctl_data_t adpctl;
++
++	adpctl.d32 = 0;
++	adpctl.b.ar = 0x1;
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->adpctl, adpctl.d32);
++
++	while (adpctl.b.ar) {
++		adpctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->adpctl);
++	}
++
++	return adpctl.d32;
++}
++
++/**
++ * Function is called to read ADPCTL register and filter Write-clear bits
++ */
++uint32_t dwc_otg_adp_read_reg_filter(dwc_otg_core_if_t * core_if)
++{
++	adpctl_data_t adpctl;
++
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	adpctl.b.adp_tmout_int = 0;
++	adpctl.b.adp_prb_int = 0;
++	adpctl.b.adp_tmout_int = 0;
++
++	return adpctl.d32;
++}
++
++/**
++ * Function is called to write ADP registers
++ */
++void dwc_otg_adp_modify_reg(dwc_otg_core_if_t * core_if, uint32_t clr,
++			    uint32_t set)
++{
++	dwc_otg_adp_write_reg(core_if,
++			      (dwc_otg_adp_read_reg(core_if) & (~clr)) | set);
++}
++
++static void adp_sense_timeout(void *ptr)
++{
++	dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr;
++	core_if->adp.sense_timer_started = 0;
++	DWC_PRINTF("ADP SENSE TIMEOUT\n");
++	if (core_if->adp_enable) {
++		dwc_otg_adp_sense_stop(core_if);
++		dwc_otg_adp_probe_start(core_if);
++	}
++}
++
++/**
++ * This function is called when the ADP vbus timer expires. Timeout is 1.1s.
++ */
++static void adp_vbuson_timeout(void *ptr)
++{
++	gpwrdn_data_t gpwrdn;
++	dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr;
++	hprt0_data_t hprt0 = {.d32 = 0 };
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	DWC_PRINTF("%s: 1.1 seconds expire after turning on VBUS\n",__FUNCTION__);
++	if (core_if) {
++		core_if->adp.vbuson_timer_started = 0;
++		/* Turn off vbus */
++		hprt0.b.prtpwr = 1;
++		DWC_MODIFY_REG32(core_if->host_if->hprt0, hprt0.d32, 0);
++		gpwrdn.d32 = 0;
++
++		/* Power off the core */
++		if (core_if->power_down == 2) {
++			/* Enable Wakeup Logic */
++//                      gpwrdn.b.wkupactiv = 1;
++			gpwrdn.b.pmuactv = 0;
++			gpwrdn.b.pwrdnrstn = 1;
++			gpwrdn.b.pwrdnclmp = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0,
++					 gpwrdn.d32);
++
++			/* Suspend the Phy Clock */
++			pcgcctl.b.stoppclk = 1;
++			DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++
++			/* Switch on VDD */
++//                      gpwrdn.b.wkupactiv = 1;
++			gpwrdn.b.pmuactv = 1;
++			gpwrdn.b.pwrdnrstn = 1;
++			gpwrdn.b.pwrdnclmp = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0,
++					 gpwrdn.d32);
++		} else {
++			/* Enable Power Down Logic */
++			gpwrdn.b.pmuintsel = 1;
++			gpwrdn.b.pmuactv = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++		}
++
++		/* Power off the core */
++		if (core_if->power_down == 2) {
++			gpwrdn.d32 = 0;
++			gpwrdn.b.pwrdnswtch = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn,
++					 gpwrdn.d32, 0);
++		}
++
++		/* Unmask SRP detected interrupt from Power Down Logic */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.srp_det_msk = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++
++		dwc_otg_adp_probe_start(core_if);
++		dwc_otg_dump_global_registers(core_if);
++		dwc_otg_dump_host_registers(core_if);
++	}
++
++}
++
++/**
++ * Start the ADP Initial Probe timer to detect if Port Connected interrupt is
++ * not asserted within 1.1 seconds.
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++void dwc_otg_adp_vbuson_timer_start(dwc_otg_core_if_t * core_if)
++{
++	core_if->adp.vbuson_timer_started = 1;
++	if (core_if->adp.vbuson_timer)
++	{
++		DWC_PRINTF("SCHEDULING VBUSON TIMER\n");
++		/* 1.1 secs + 60ms necessary for cil_hcd_start*/
++		DWC_TIMER_SCHEDULE(core_if->adp.vbuson_timer, 1160);
++	} else {
++		DWC_WARN("VBUSON_TIMER = %p\n",core_if->adp.vbuson_timer);
++	}
++}
++
++#if 0
++/**
++ * Masks all DWC OTG core interrupts
++ *
++ */
++static void mask_all_interrupts(dwc_otg_core_if_t * core_if)
++{
++	int i;
++	gahbcfg_data_t ahbcfg = {.d32 = 0 };
++
++	/* Mask Host Interrupts */
++
++	/* Clear and disable HCINTs */
++	for (i = 0; i < core_if->core_params->host_channels; i++) {
++		DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcintmsk, 0);
++		DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcint, 0xFFFFFFFF);
++
++	}
++
++	/* Clear and disable HAINT */
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haintmsk, 0x0000);
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haint, 0xFFFFFFFF);
++
++	/* Mask Device Interrupts */
++	if (!core_if->multiproc_int_enable) {
++		/* Clear and disable IN Endpoint interrupts */
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->diepmsk, 0);
++		for (i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->
++					diepint, 0xFFFFFFFF);
++		}
++
++		/* Clear and disable OUT Endpoint interrupts */
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->doepmsk, 0);
++		for (i = 0; i <= core_if->dev_if->num_out_eps; i++) {
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->
++					doepint, 0xFFFFFFFF);
++		}
++
++		/* Clear and disable DAINT */
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daint,
++				0xFFFFFFFF);
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daintmsk, 0);
++	} else {
++		for (i = 0; i < core_if->dev_if->num_in_eps; ++i) {
++			DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->
++					diepeachintmsk[i], 0);
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->
++					diepint, 0xFFFFFFFF);
++		}
++
++		for (i = 0; i < core_if->dev_if->num_out_eps; ++i) {
++			DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->
++					doepeachintmsk[i], 0);
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->
++					doepint, 0xFFFFFFFF);
++		}
++
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->deachintmsk,
++				0);
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->deachint,
++				0xFFFFFFFF);
++
++	}
++
++	/* Disable interrupts */
++	ahbcfg.b.glblintrmsk = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0);
++
++	/* Disable all interrupts. */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0);
++
++	/* Clear any pending interrupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Clear any pending OTG Interrupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gotgint, 0xFFFFFFFF);
++}
++
++/**
++ * Unmask Port Connection Detected interrupt
++ *
++ */
++static void unmask_conn_det_intr(dwc_otg_core_if_t * core_if)
++{
++	gintmsk_data_t gintmsk = {.d32 = 0,.b.portintr = 1 };
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32);
++}
++#endif
++
++/**
++ * Starts the ADP Probing
++ *
++ * @param core_if the pointer to core_if structure.
++ */
++uint32_t dwc_otg_adp_probe_start(dwc_otg_core_if_t * core_if)
++{
++
++	adpctl_data_t adpctl = {.d32 = 0};
++	gpwrdn_data_t gpwrdn;
++#if 0
++	adpctl_data_t adpctl_int = {.d32 = 0, .b.adp_prb_int = 1,
++								.b.adp_sns_int = 1, b.adp_tmout_int};
++#endif
++	dwc_otg_disable_global_interrupts(core_if);
++	DWC_PRINTF("ADP Probe Start\n");
++	core_if->adp.probe_enabled = 1;
++
++	adpctl.b.adpres = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	while (adpctl.b.adpres) {
++		adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	}
++
++	adpctl.d32 = 0;
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++
++	/* In Host mode unmask SRP detected interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.sts_chngint_msk = 1;
++	if (!gpwrdn.b.idsts) {
++		gpwrdn.b.srp_det_msk = 1;
++	}
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++
++	adpctl.b.adp_tmout_int_msk = 1;
++	adpctl.b.adp_prb_int_msk = 1;
++	adpctl.b.prb_dschg = 1;
++	adpctl.b.prb_delta = 1;
++	adpctl.b.prb_per = 1;
++	adpctl.b.adpen = 1;
++	adpctl.b.enaprb = 1;
++
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++	DWC_PRINTF("ADP Probe Finish\n");
++	return 0;
++}
++
++/**
++ * Starts the ADP Sense timer to detect if ADP Sense interrupt is not asserted
++ * within 3 seconds.
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++void dwc_otg_adp_sense_timer_start(dwc_otg_core_if_t * core_if)
++{
++	core_if->adp.sense_timer_started = 1;
++	DWC_TIMER_SCHEDULE(core_if->adp.sense_timer, 3000 /* 3 secs */ );
++}
++
++/**
++ * Starts the ADP Sense
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++uint32_t dwc_otg_adp_sense_start(dwc_otg_core_if_t * core_if)
++{
++	adpctl_data_t adpctl;
++
++	DWC_PRINTF("ADP Sense Start\n");
++
++	/* Unmask ADP sense interrupt and mask all other from the core */
++	adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if);
++	adpctl.b.adp_sns_int_msk = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++	dwc_otg_disable_global_interrupts(core_if); // vahrama
++
++	/* Set ADP reset bit*/
++	adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if);
++	adpctl.b.adpres = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	while (adpctl.b.adpres) {
++		adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	}
++
++	adpctl.b.adpres = 0;
++	adpctl.b.adpen = 1;
++	adpctl.b.enasns = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	dwc_otg_adp_sense_timer_start(core_if);
++
++	return 0;
++}
++
++/**
++ * Stops the ADP Probing
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++uint32_t dwc_otg_adp_probe_stop(dwc_otg_core_if_t * core_if)
++{
++
++	adpctl_data_t adpctl;
++	DWC_PRINTF("Stop ADP probe\n");
++	core_if->adp.probe_enabled = 0;
++	core_if->adp.probe_counter = 0;
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++
++	adpctl.b.adpen = 0;
++	adpctl.b.adp_prb_int = 1;
++	adpctl.b.adp_tmout_int = 1;
++	adpctl.b.adp_sns_int = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	return 0;
++}
++
++/**
++ * Stops the ADP Sensing
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++uint32_t dwc_otg_adp_sense_stop(dwc_otg_core_if_t * core_if)
++{
++	adpctl_data_t adpctl;
++
++	core_if->adp.sense_enabled = 0;
++
++	adpctl.d32 = dwc_otg_adp_read_reg_filter(core_if);
++	adpctl.b.enasns = 0;
++	adpctl.b.adp_sns_int = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	return 0;
++}
++
++/**
++ * Called to turn on the VBUS after initial ADP probe in host mode.
++ * If port power was already enabled in cil_hcd_start function then
++ * only schedule a timer.
++ *
++ * @param core_if the pointer to core_if structure.
++ */
++void dwc_otg_adp_turnon_vbus(dwc_otg_core_if_t * core_if)
++{
++	hprt0_data_t hprt0 = {.d32 = 0 };
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	DWC_PRINTF("Turn on VBUS for 1.1s, port power is %d\n", hprt0.b.prtpwr);
++
++	if (hprt0.b.prtpwr == 0) {
++		hprt0.b.prtpwr = 1;
++		//DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	}
++
++	dwc_otg_adp_vbuson_timer_start(core_if);
++}
++
++/**
++ * Called right after driver is loaded
++ * to perform initial actions for ADP
++ *
++ * @param core_if the pointer to core_if structure.
++ * @param is_host - flag for current mode of operation either from GINTSTS or GPWRDN
++ */
++void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host)
++{
++	gpwrdn_data_t gpwrdn;
++
++	DWC_PRINTF("ADP Initial Start\n");
++	core_if->adp.adp_started = 1;
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++	dwc_otg_disable_global_interrupts(core_if);
++	if (is_host) {
++		DWC_PRINTF("HOST MODE\n");
++		/* Enable Power Down Logic Interrupt*/
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuintsel = 1;
++		gpwrdn.b.pmuactv = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++		/* Initialize first ADP probe to obtain Ramp Time value */
++		core_if->adp.initial_probe = 1;
++		dwc_otg_adp_probe_start(core_if);
++	} else {
++		gotgctl_data_t gotgctl;
++		gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++		DWC_PRINTF("DEVICE MODE\n");
++		if (gotgctl.b.bsesvld == 0) {
++			/* Enable Power Down Logic Interrupt*/
++			gpwrdn.d32 = 0;
++			DWC_PRINTF("VBUS is not valid - start ADP probe\n");
++			gpwrdn.b.pmuintsel = 1;
++			gpwrdn.b.pmuactv = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++			core_if->adp.initial_probe = 1;
++			dwc_otg_adp_probe_start(core_if);
++		} else {
++			DWC_PRINTF("VBUS is valid - initialize core as a Device\n");
++			core_if->op_state = B_PERIPHERAL;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_pcd_start(core_if);
++			dwc_otg_dump_global_registers(core_if);
++			dwc_otg_dump_dev_registers(core_if);
++		}
++	}
++}
++
++void dwc_otg_adp_init(dwc_otg_core_if_t * core_if)
++{
++	core_if->adp.adp_started = 0;
++	core_if->adp.initial_probe = 0;
++	core_if->adp.probe_timer_values[0] = -1;
++	core_if->adp.probe_timer_values[1] = -1;
++	core_if->adp.probe_enabled = 0;
++	core_if->adp.sense_enabled = 0;
++	core_if->adp.sense_timer_started = 0;
++	core_if->adp.vbuson_timer_started = 0;
++	core_if->adp.probe_counter = 0;
++	core_if->adp.gpwrdn = 0;
++	core_if->adp.attached = DWC_OTG_ADP_UNKOWN;
++	/* Initialize timers */
++	core_if->adp.sense_timer =
++	    DWC_TIMER_ALLOC("ADP SENSE TIMER", adp_sense_timeout, core_if);
++	core_if->adp.vbuson_timer =
++	    DWC_TIMER_ALLOC("ADP VBUS ON TIMER", adp_vbuson_timeout, core_if);
++	if (!core_if->adp.sense_timer || !core_if->adp.vbuson_timer)
++	{
++		DWC_ERROR("Could not allocate memory for ADP timers\n");
++	}
++}
++
++void dwc_otg_adp_remove(dwc_otg_core_if_t * core_if)
++{
++	gpwrdn_data_t gpwrdn = { .d32 = 0 };
++	gpwrdn.b.pmuintsel = 1;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	if (core_if->adp.probe_enabled)
++		dwc_otg_adp_probe_stop(core_if);
++	if (core_if->adp.sense_enabled)
++		dwc_otg_adp_sense_stop(core_if);
++	if (core_if->adp.sense_timer_started)
++		DWC_TIMER_CANCEL(core_if->adp.sense_timer);
++	if (core_if->adp.vbuson_timer_started)
++		DWC_TIMER_CANCEL(core_if->adp.vbuson_timer);
++	DWC_TIMER_FREE(core_if->adp.sense_timer);
++	DWC_TIMER_FREE(core_if->adp.vbuson_timer);
++}
++
++/////////////////////////////////////////////////////////////////////
++////////////// ADP Interrupt Handlers ///////////////////////////////
++/////////////////////////////////////////////////////////////////////
++/**
++ * This function sets Ramp Timer values
++ */
++static uint32_t set_timer_value(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	if (core_if->adp.probe_timer_values[0] == -1) {
++		core_if->adp.probe_timer_values[0] = val;
++		core_if->adp.probe_timer_values[1] = -1;
++		return 1;
++	} else {
++		core_if->adp.probe_timer_values[1] =
++		    core_if->adp.probe_timer_values[0];
++		core_if->adp.probe_timer_values[0] = val;
++		return 0;
++	}
++}
++
++/**
++ * This function compares Ramp Timer values
++ */
++static uint32_t compare_timer_values(dwc_otg_core_if_t * core_if)
++{
++	uint32_t diff;
++	if (core_if->adp.probe_timer_values[0]>=core_if->adp.probe_timer_values[1])
++			diff = core_if->adp.probe_timer_values[0]-core_if->adp.probe_timer_values[1];
++	else
++			diff = core_if->adp.probe_timer_values[1]-core_if->adp.probe_timer_values[0];
++	if(diff < 2) {
++		return 0;
++	} else {
++		return 1;
++	}
++}
++
++/**
++ * This function handles ADP Probe Interrupts
++ */
++static int32_t dwc_otg_adp_handle_prb_intr(dwc_otg_core_if_t * core_if,
++						 uint32_t val)
++{
++	adpctl_data_t adpctl = {.d32 = 0 };
++	gpwrdn_data_t gpwrdn, temp;
++	adpctl.d32 = val;
++
++	temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	core_if->adp.probe_counter++;
++	core_if->adp.gpwrdn = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	if (adpctl.b.rtim == 0 && !temp.b.idsts){
++		DWC_PRINTF("RTIM value is 0\n");
++		goto exit;
++	}
++	if (set_timer_value(core_if, adpctl.b.rtim) &&
++	    core_if->adp.initial_probe) {
++		core_if->adp.initial_probe = 0;
++		dwc_otg_adp_probe_stop(core_if);
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuactv = 1;
++		gpwrdn.b.pmuintsel = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++		/* check which value is for device mode and which for Host mode */
++		if (!temp.b.idsts) {	/* considered host mode value is 0 */
++			/*
++			 * Turn on VBUS after initial ADP probe.
++			 */
++			core_if->op_state = A_HOST;
++			dwc_otg_enable_global_interrupts(core_if);
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_hcd_start(core_if);
++			dwc_otg_adp_turnon_vbus(core_if);
++			DWC_SPINLOCK(core_if->lock);
++		} else {
++			/*
++			 * Initiate SRP after initial ADP probe.
++			 */
++			dwc_otg_enable_global_interrupts(core_if);
++			dwc_otg_initiate_srp(core_if);
++		}
++	} else if (core_if->adp.probe_counter > 2){
++		gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++		if (compare_timer_values(core_if)) {
++			DWC_PRINTF("Difference in timer values !!! \n");
++//                      core_if->adp.attached = DWC_OTG_ADP_ATTACHED;
++			dwc_otg_adp_probe_stop(core_if);
++
++			/* Power on the core */
++			if (core_if->power_down == 2) {
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++			}
++
++			/* check which value is for device mode and which for Host mode */
++			if (!temp.b.idsts) {	/* considered host mode value is 0 */
++				/* Disable Interrupt from Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuintsel = 1;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, gpwrdn.d32, 0);
++
++				/*
++				 * Initialize the Core for Host mode.
++				 */
++				core_if->op_state = A_HOST;
++				dwc_otg_core_init(core_if);
++				dwc_otg_enable_global_interrupts(core_if);
++				cil_hcd_start(core_if);
++			} else {
++				gotgctl_data_t gotgctl;
++				/* Mask SRP detected interrupt from Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.srp_det_msk = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, gpwrdn.d32, 0);
++
++				/* Disable Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuintsel = 1;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, gpwrdn.d32, 0);
++
++				/*
++				 * Initialize the Core for Device mode.
++				 */
++				core_if->op_state = B_PERIPHERAL;
++				dwc_otg_core_init(core_if);
++				dwc_otg_enable_global_interrupts(core_if);
++				cil_pcd_start(core_if);
++
++				gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++				if (!gotgctl.b.bsesvld) {
++					dwc_otg_initiate_srp(core_if);
++				}
++			}
++		}
++		if (core_if->power_down == 2) {
++			if (gpwrdn.b.bsessvld) {
++				/* Mask SRP detected interrupt from Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.srp_det_msk = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++				/* Disable Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++				/*
++				 * Initialize the Core for Device mode.
++				 */
++				core_if->op_state = B_PERIPHERAL;
++				dwc_otg_core_init(core_if);
++				dwc_otg_enable_global_interrupts(core_if);
++				cil_pcd_start(core_if);
++			}
++		}
++	}
++exit:
++	/* Clear interrupt */
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	adpctl.b.adp_prb_int = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	return 0;
++}
++
++/**
++ * This function hadles ADP Sense Interrupt
++ */
++static int32_t dwc_otg_adp_handle_sns_intr(dwc_otg_core_if_t * core_if)
++{
++	adpctl_data_t adpctl;
++	/* Stop ADP Sense timer */
++	DWC_TIMER_CANCEL(core_if->adp.sense_timer);
++
++	/* Restart ADP Sense timer */
++	dwc_otg_adp_sense_timer_start(core_if);
++
++	/* Clear interrupt */
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	adpctl.b.adp_sns_int = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	return 0;
++}
++
++/**
++ * This function handles ADP Probe Interrupts
++ */
++static int32_t dwc_otg_adp_handle_prb_tmout_intr(dwc_otg_core_if_t * core_if,
++						 uint32_t val)
++{
++	adpctl_data_t adpctl = {.d32 = 0 };
++	adpctl.d32 = val;
++	set_timer_value(core_if, adpctl.b.rtim);
++
++	/* Clear interrupt */
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	adpctl.b.adp_tmout_int = 1;
++	dwc_otg_adp_write_reg(core_if, adpctl.d32);
++
++	return 0;
++}
++
++/**
++ * ADP Interrupt handler.
++ *
++ */
++int32_t dwc_otg_adp_handle_intr(dwc_otg_core_if_t * core_if)
++{
++	int retval = 0;
++	adpctl_data_t adpctl = {.d32 = 0};
++
++	adpctl.d32 = dwc_otg_adp_read_reg(core_if);
++	DWC_PRINTF("ADPCTL = %08x\n",adpctl.d32);
++
++	if (adpctl.b.adp_sns_int & adpctl.b.adp_sns_int_msk) {
++		DWC_PRINTF("ADP Sense interrupt\n");
++		retval |= dwc_otg_adp_handle_sns_intr(core_if);
++	}
++	if (adpctl.b.adp_tmout_int & adpctl.b.adp_tmout_int_msk) {
++		DWC_PRINTF("ADP timeout interrupt\n");
++		retval |= dwc_otg_adp_handle_prb_tmout_intr(core_if, adpctl.d32);
++	}
++	if (adpctl.b.adp_prb_int & adpctl.b.adp_prb_int_msk) {
++		DWC_PRINTF("ADP Probe interrupt\n");
++		adpctl.b.adp_prb_int = 1;
++		retval |= dwc_otg_adp_handle_prb_intr(core_if, adpctl.d32);
++	}
++
++//	dwc_otg_adp_modify_reg(core_if, adpctl.d32, 0);
++	//dwc_otg_adp_write_reg(core_if, adpctl.d32);
++	DWC_PRINTF("RETURN FROM ADP ISR\n");
++
++	return retval;
++}
++
++/**
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++int32_t dwc_otg_adp_handle_srp_intr(dwc_otg_core_if_t * core_if)
++{
++
++#ifndef DWC_HOST_ONLY
++	hprt0_data_t hprt0;
++	gpwrdn_data_t gpwrdn;
++	DWC_DEBUGPL(DBG_ANY, "++ Power Down Logic Session Request Interrupt++\n");
++
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	/* check which value is for device mode and which for Host mode */
++	if (!gpwrdn.b.idsts) {	/* considered host mode value is 0 */
++		DWC_PRINTF("SRP: Host mode\n");
++
++		if (core_if->adp_enable) {
++			dwc_otg_adp_probe_stop(core_if);
++
++			/* Power on the core */
++			if (core_if->power_down == 2) {
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++			}
++
++			core_if->op_state = A_HOST;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_hcd_start(core_if);
++		}
++
++		/* Turn on the port power bit. */
++		hprt0.d32 = dwc_otg_read_hprt0(core_if);
++		hprt0.b.prtpwr = 1;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++		/* Start the Connection timer. So a message can be displayed
++		 * if connect does not occur within 10 seconds. */
++		cil_hcd_session_start(core_if);
++	} else {
++		DWC_PRINTF("SRP: Device mode %s\n", __FUNCTION__);
++		if (core_if->adp_enable) {
++			dwc_otg_adp_probe_stop(core_if);
++
++			/* Power on the core */
++			if (core_if->power_down == 2) {
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++			}
++
++			gpwrdn.d32 = 0;
++			gpwrdn.b.pmuactv = 0;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0,
++					 gpwrdn.d32);
++
++			core_if->op_state = B_PERIPHERAL;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_pcd_start(core_if);
++		}
++	}
++#endif
++	return 1;
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_adp.h
+@@ -0,0 +1,80 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_adp.h $
++ * $Revision: #7 $
++ * $Date: 2011/10/24 $
++ * $Change: 1871159 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#ifndef __DWC_OTG_ADP_H__
++#define __DWC_OTG_ADP_H__
++
++/**
++ * @file
++ *
++ * This file contains the Attach Detect Protocol interfaces and defines
++ * (functions) and structures for Linux.
++ *
++ */
++
++#define DWC_OTG_ADP_UNATTACHED	0
++#define DWC_OTG_ADP_ATTACHED	1
++#define DWC_OTG_ADP_UNKOWN	2
++
++typedef struct dwc_otg_adp {
++	uint32_t adp_started;
++	uint32_t initial_probe;
++	int32_t probe_timer_values[2];
++	uint32_t probe_enabled;
++	uint32_t sense_enabled;
++	dwc_timer_t *sense_timer;
++	uint32_t sense_timer_started;
++	dwc_timer_t *vbuson_timer;
++	uint32_t vbuson_timer_started;
++	uint32_t attached;
++	uint32_t probe_counter;
++	uint32_t gpwrdn;
++} dwc_otg_adp_t;
++
++/**
++ * Attach Detect Protocol functions
++ */
++
++extern void dwc_otg_adp_write_reg(dwc_otg_core_if_t * core_if, uint32_t value);
++extern uint32_t dwc_otg_adp_read_reg(dwc_otg_core_if_t * core_if);
++extern uint32_t dwc_otg_adp_probe_start(dwc_otg_core_if_t * core_if);
++extern uint32_t dwc_otg_adp_sense_start(dwc_otg_core_if_t * core_if);
++extern uint32_t dwc_otg_adp_probe_stop(dwc_otg_core_if_t * core_if);
++extern uint32_t dwc_otg_adp_sense_stop(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host);
++extern void dwc_otg_adp_init(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_adp_remove(dwc_otg_core_if_t * core_if);
++extern int32_t dwc_otg_adp_handle_intr(dwc_otg_core_if_t * core_if);
++extern int32_t dwc_otg_adp_handle_srp_intr(dwc_otg_core_if_t * core_if);
++
++#endif //__DWC_OTG_ADP_H__
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_attr.c
+@@ -0,0 +1,1212 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.c $
++ * $Revision: #44 $
++ * $Date: 2010/11/29 $
++ * $Change: 1636033 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++/** @file
++ *
++ * The diagnostic interface will provide access to the controller for
++ * bringing up the hardware and testing.  The Linux driver attributes
++ * feature will be used to provide the Linux Diagnostic
++ * Interface. These attributes are accessed through sysfs.
++ */
++
++/** @page "Linux Module Attributes"
++ *
++ * The Linux module attributes feature is used to provide the Linux
++ * Diagnostic Interface.  These attributes are accessed through sysfs.
++ * The diagnostic interface will provide access to the controller for
++ * bringing up the hardware and testing.
++
++ The following table shows the attributes.
++ <table>
++ <tr>
++ <td><b> Name</b></td>
++ <td><b> Description</b></td>
++ <td><b> Access</b></td>
++ </tr>
++
++ <tr>
++ <td> mode </td>
++ <td> Returns the current mode: 0 for device mode, 1 for host mode</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> hnpcapable </td>
++ <td> Gets or sets the "HNP-capable" bit in the Core USB Configuraton Register.
++ Read returns the current value.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> srpcapable </td>
++ <td> Gets or sets the "SRP-capable" bit in the Core USB Configuraton Register.
++ Read returns the current value.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> hsic_connect </td>
++ <td> Gets or sets the "HSIC-Connect" bit in the GLPMCFG Register.
++ Read returns the current value.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> inv_sel_hsic </td>
++ <td> Gets or sets the "Invert Select HSIC" bit in the GLPMFG Register.
++ Read returns the current value.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> hnp </td>
++ <td> Initiates the Host Negotiation Protocol.  Read returns the status.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> srp </td>
++ <td> Initiates the Session Request Protocol.  Read returns the status.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> buspower </td>
++ <td> Gets or sets the Power State of the bus (0 - Off or 1 - On)</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> bussuspend </td>
++ <td> Suspends the USB bus.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> busconnected </td>
++ <td> Gets the connection status of the bus</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> gotgctl </td>
++ <td> Gets or sets the Core Control Status Register.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> gusbcfg </td>
++ <td> Gets or sets the Core USB Configuration Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> grxfsiz </td>
++ <td> Gets or sets the Receive FIFO Size Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> gnptxfsiz </td>
++ <td> Gets or sets the non-periodic Transmit Size Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> gpvndctl </td>
++ <td> Gets or sets the PHY Vendor Control Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> ggpio </td>
++ <td> Gets the value in the lower 16-bits of the General Purpose IO Register
++ or sets the upper 16 bits.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> guid </td>
++ <td> Gets or sets the value of the User ID Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> gsnpsid </td>
++ <td> Gets the value of the Synopsys ID Regester</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> devspeed </td>
++ <td> Gets or sets the device speed setting in the DCFG register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> enumspeed </td>
++ <td> Gets the device enumeration Speed.</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> hptxfsiz </td>
++ <td> Gets the value of the Host Periodic Transmit FIFO</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> hprt0 </td>
++ <td> Gets or sets the value in the Host Port Control and Status Register</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> regoffset </td>
++ <td> Sets the register offset for the next Register Access</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> regvalue </td>
++ <td> Gets or sets the value of the register at the offset in the regoffset attribute.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> remote_wakeup </td>
++ <td> On read, shows the status of Remote Wakeup. On write, initiates a remote
++ wakeup of the host. When bit 0 is 1 and Remote Wakeup is enabled, the Remote
++ Wakeup signalling bit in the Device Control Register is set for 1
++ milli-second.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> rem_wakeup_pwrdn </td>
++ <td> On read, shows the status core - hibernated or not. On write, initiates
++ a remote wakeup of the device from Hibernation. </td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> mode_ch_tim_en </td>
++ <td> This bit is used to enable or disable the host core to wait for 200 PHY
++ clock cycles at the end of Resume to change the opmode signal to the PHY to 00
++ after Suspend or LPM. </td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> fr_interval </td>
++ <td> On read, shows the value of HFIR Frame Interval. On write, dynamically
++ reload HFIR register during runtime. The application can write a value to this
++ register only after the Port Enable bit of the Host Port Control and Status
++ register (HPRT.PrtEnaPort) has been set </td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> disconnect_us </td>
++ <td> On read, shows the status of disconnect_device_us. On write, sets disconnect_us
++ which causes soft disconnect for 100us. Applicable only for device mode of operation.</td>
++ <td> Read/Write</td>
++ </tr>
++
++ <tr>
++ <td> regdump </td>
++ <td> Dumps the contents of core registers.</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> spramdump </td>
++ <td> Dumps the contents of core registers.</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> hcddump </td>
++ <td> Dumps the current HCD state.</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> hcd_frrem </td>
++ <td> Shows the average value of the Frame Remaining
++ field in the Host Frame Number/Frame Remaining register when an SOF interrupt
++ occurs. This can be used to determine the average interrupt latency. Also
++ shows the average Frame Remaining value for start_transfer and the "a" and
++ "b" sample points. The "a" and "b" sample points may be used during debugging
++ bto determine how long it takes to execute a section of the HCD code.</td>
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> rd_reg_test </td>
++ <td> Displays the time required to read the GNPTXFSIZ register many times
++ (the output shows the number of times the register is read).
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> wr_reg_test </td>
++ <td> Displays the time required to write the GNPTXFSIZ register many times
++ (the output shows the number of times the register is written).
++ <td> Read</td>
++ </tr>
++
++ <tr>
++ <td> lpm_response </td>
++ <td> Gets or sets lpm_response mode. Applicable only in device mode.
++ <td> Write</td>
++ </tr>
++
++ <tr>
++ <td> sleep_status </td>
++ <td> Shows sleep status of device.
++ <td> Read</td>
++ </tr>
++
++ </table>
++
++ Example usage:
++ To get the current mode:
++ cat /sys/devices/lm0/mode
++
++ To power down the USB:
++ echo 0 > /sys/devices/lm0/buspower
++ */
++
++#include "dwc_otg_os_dep.h"
++#include "dwc_os.h"
++#include "dwc_otg_driver.h"
++#include "dwc_otg_attr.h"
++#include "dwc_otg_core_if.h"
++#include "dwc_otg_pcd_if.h"
++#include "dwc_otg_hcd_if.h"
++
++/*
++ * MACROs for defining sysfs attribute
++ */
++#ifdef LM_INTERFACE
++
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++	struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \
++	dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev);		\
++	uint32_t val; \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++	struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \
++	dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \
++	uint32_t set = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\
++	return count; \
++}
++
++#elif defined(PCI_INTERFACE)
++
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++	dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);	\
++	uint32_t val; \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++	dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);  \
++	uint32_t set = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\
++	return count; \
++}
++
++#elif defined(PLATFORM_INTERFACE)
++
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++        struct platform_device *platform_dev = \
++                container_of(_dev, struct platform_device, dev); \
++        dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev);  \
++	uint32_t val; \
++	DWC_PRINTF("%s(%p) -> platform_dev %p, otg_dev %p\n", \
++                    __func__, _dev, platform_dev, otg_dev); \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++        struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \
++        dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \
++	uint32_t set = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_(otg_dev->core_if, set);\
++	return count; \
++}
++#endif
++
++/*
++ * MACROs for defining sysfs attribute for 32-bit registers
++ */
++#ifdef LM_INTERFACE
++#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++	struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \
++	dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \
++	uint32_t val; \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%08x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++	struct lm_device *lm_dev = container_of(_dev, struct lm_device, dev); \
++	dwc_otg_device_t *otg_dev = lm_get_drvdata(lm_dev); \
++	uint32_t val = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \
++	return count; \
++}
++#elif defined(PCI_INTERFACE)
++#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++	dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);  \
++	uint32_t val; \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%08x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++	dwc_otg_device_t *otg_dev = dev_get_drvdata(_dev);  \
++	uint32_t val = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \
++	return count; \
++}
++
++#elif defined(PLATFORM_INTERFACE)
++#include "dwc_otg_dbg.h"
++#define DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_show (struct device *_dev, struct device_attribute *attr, char *buf) \
++{ \
++	struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \
++	dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \
++	uint32_t val; \
++	DWC_PRINTF("%s(%p) -> platform_dev %p, otg_dev %p\n", \
++                    __func__, _dev, platform_dev, otg_dev); \
++	val = dwc_otg_get_##_otg_attr_name_ (otg_dev->core_if); \
++	return sprintf (buf, "%s = 0x%08x\n", _string_, val); \
++}
++#define DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \
++static ssize_t _otg_attr_name_##_store (struct device *_dev, struct device_attribute *attr, \
++					const char *buf, size_t count) \
++{ \
++	struct platform_device *platform_dev = container_of(_dev, struct platform_device, dev); \
++	dwc_otg_device_t *otg_dev = platform_get_drvdata(platform_dev); \
++	uint32_t val = simple_strtoul(buf, NULL, 16); \
++	dwc_otg_set_##_otg_attr_name_ (otg_dev->core_if, val); \
++	return count; \
++}
++
++#endif
++
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_RW(_otg_attr_name_,_string_) \
++DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \
++DWC_OTG_DEVICE_ATTR_BITFIELD_STORE(_otg_attr_name_,_string_) \
++DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store);
++
++#define DWC_OTG_DEVICE_ATTR_BITFIELD_RO(_otg_attr_name_,_string_) \
++DWC_OTG_DEVICE_ATTR_BITFIELD_SHOW(_otg_attr_name_,_string_) \
++DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL);
++
++#define DWC_OTG_DEVICE_ATTR_REG32_RW(_otg_attr_name_,_addr_,_string_) \
++DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \
++DWC_OTG_DEVICE_ATTR_REG_STORE(_otg_attr_name_,_string_) \
++DEVICE_ATTR(_otg_attr_name_,0644,_otg_attr_name_##_show,_otg_attr_name_##_store);
++
++#define DWC_OTG_DEVICE_ATTR_REG32_RO(_otg_attr_name_,_addr_,_string_) \
++DWC_OTG_DEVICE_ATTR_REG_SHOW(_otg_attr_name_,_string_) \
++DEVICE_ATTR(_otg_attr_name_,0444,_otg_attr_name_##_show,NULL);
++
++/** @name Functions for Show/Store of Attributes */
++/**@{*/
++
++/**
++ * Helper function returning the otg_device structure of the given device
++ */
++static dwc_otg_device_t *dwc_otg_drvdev(struct device *_dev)
++{
++        dwc_otg_device_t *otg_dev;
++        DWC_OTG_GETDRVDEV(otg_dev, _dev);
++        return otg_dev;
++}
++
++/**
++ * Show the register offset of the Register Access.
++ */
++static ssize_t regoffset_show(struct device *_dev,
++			      struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return snprintf(buf, sizeof("0xFFFFFFFF\n") + 1, "0x%08x\n",
++			otg_dev->os_dep.reg_offset);
++}
++
++/**
++ * Set the register offset for the next Register Access 	Read/Write
++ */
++static ssize_t regoffset_store(struct device *_dev,
++			       struct device_attribute *attr,
++			       const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t offset = simple_strtoul(buf, NULL, 16);
++#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE)
++	if (offset < SZ_256K) {
++#elif  defined(PCI_INTERFACE)
++	if (offset < 0x00040000) {
++#endif
++		otg_dev->os_dep.reg_offset = offset;
++	} else {
++		dev_err(_dev, "invalid offset\n");
++	}
++
++	return count;
++}
++
++DEVICE_ATTR(regoffset, S_IRUGO | S_IWUSR, regoffset_show, regoffset_store);
++
++/**
++ * Show the value of the register at the offset in the reg_offset
++ * attribute.
++ */
++static ssize_t regvalue_show(struct device *_dev,
++			     struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t val;
++	volatile uint32_t *addr;
++
++	if (otg_dev->os_dep.reg_offset != 0xFFFFFFFF && 0 != otg_dev->os_dep.base) {
++		/* Calculate the address */
++		addr = (uint32_t *) (otg_dev->os_dep.reg_offset +
++				     (uint8_t *) otg_dev->os_dep.base);
++		val = DWC_READ_REG32(addr);
++		return snprintf(buf,
++				sizeof("Reg@0xFFFFFFFF = 0xFFFFFFFF\n") + 1,
++				"Reg@0x%06x = 0x%08x\n", otg_dev->os_dep.reg_offset,
++				val);
++	} else {
++		dev_err(_dev, "Invalid offset (0x%0x)\n", otg_dev->os_dep.reg_offset);
++		return sprintf(buf, "invalid offset\n");
++	}
++}
++
++/**
++ * Store the value in the register at the offset in the reg_offset
++ * attribute.
++ *
++ */
++static ssize_t regvalue_store(struct device *_dev,
++			      struct device_attribute *attr,
++			      const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	volatile uint32_t *addr;
++	uint32_t val = simple_strtoul(buf, NULL, 16);
++	//dev_dbg(_dev, "Offset=0x%08x Val=0x%08x\n", otg_dev->reg_offset, val);
++	if (otg_dev->os_dep.reg_offset != 0xFFFFFFFF && 0 != otg_dev->os_dep.base) {
++		/* Calculate the address */
++		addr = (uint32_t *) (otg_dev->os_dep.reg_offset +
++				     (uint8_t *) otg_dev->os_dep.base);
++		DWC_WRITE_REG32(addr, val);
++	} else {
++		dev_err(_dev, "Invalid Register Offset (0x%08x)\n",
++			otg_dev->os_dep.reg_offset);
++	}
++	return count;
++}
++
++DEVICE_ATTR(regvalue, S_IRUGO | S_IWUSR, regvalue_show, regvalue_store);
++
++/*
++ * Attributes
++ */
++DWC_OTG_DEVICE_ATTR_BITFIELD_RO(mode, "Mode");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hnpcapable, "HNPCapable");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RW(srpcapable, "SRPCapable");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RW(hsic_connect, "HSIC Connect");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RW(inv_sel_hsic, "Invert Select HSIC");
++
++//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(buspower,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode");
++//DWC_OTG_DEVICE_ATTR_BITFIELD_RW(bussuspend,&(otg_dev->core_if->core_global_regs->gotgctl),(1<<8),8,"Mode");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RO(busconnected, "Bus Connected");
++
++DWC_OTG_DEVICE_ATTR_REG32_RW(gotgctl, 0, "GOTGCTL");
++DWC_OTG_DEVICE_ATTR_REG32_RW(gusbcfg,
++			     &(otg_dev->core_if->core_global_regs->gusbcfg),
++			     "GUSBCFG");
++DWC_OTG_DEVICE_ATTR_REG32_RW(grxfsiz,
++			     &(otg_dev->core_if->core_global_regs->grxfsiz),
++			     "GRXFSIZ");
++DWC_OTG_DEVICE_ATTR_REG32_RW(gnptxfsiz,
++			     &(otg_dev->core_if->core_global_regs->gnptxfsiz),
++			     "GNPTXFSIZ");
++DWC_OTG_DEVICE_ATTR_REG32_RW(gpvndctl,
++			     &(otg_dev->core_if->core_global_regs->gpvndctl),
++			     "GPVNDCTL");
++DWC_OTG_DEVICE_ATTR_REG32_RW(ggpio,
++			     &(otg_dev->core_if->core_global_regs->ggpio),
++			     "GGPIO");
++DWC_OTG_DEVICE_ATTR_REG32_RW(guid, &(otg_dev->core_if->core_global_regs->guid),
++			     "GUID");
++DWC_OTG_DEVICE_ATTR_REG32_RO(gsnpsid,
++			     &(otg_dev->core_if->core_global_regs->gsnpsid),
++			     "GSNPSID");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RW(devspeed, "Device Speed");
++DWC_OTG_DEVICE_ATTR_BITFIELD_RO(enumspeed, "Device Enumeration Speed");
++
++DWC_OTG_DEVICE_ATTR_REG32_RO(hptxfsiz,
++			     &(otg_dev->core_if->core_global_regs->hptxfsiz),
++			     "HPTXFSIZ");
++DWC_OTG_DEVICE_ATTR_REG32_RW(hprt0, otg_dev->core_if->host_if->hprt0, "HPRT0");
++
++/**
++ * @todo Add code to initiate the HNP.
++ */
++/**
++ * Show the HNP status bit
++ */
++static ssize_t hnp_show(struct device *_dev,
++			struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "HstNegScs = 0x%x\n",
++		       dwc_otg_get_hnpstatus(otg_dev->core_if));
++}
++
++/**
++ * Set the HNP Request bit
++ */
++static ssize_t hnp_store(struct device *_dev,
++			 struct device_attribute *attr,
++			 const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t in = simple_strtoul(buf, NULL, 16);
++	dwc_otg_set_hnpreq(otg_dev->core_if, in);
++	return count;
++}
++
++DEVICE_ATTR(hnp, 0644, hnp_show, hnp_store);
++
++/**
++ * @todo Add code to initiate the SRP.
++ */
++/**
++ * Show the SRP status bit
++ */
++static ssize_t srp_show(struct device *_dev,
++			struct device_attribute *attr, char *buf)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "SesReqScs = 0x%x\n",
++		       dwc_otg_get_srpstatus(otg_dev->core_if));
++#else
++	return sprintf(buf, "Host Only Mode!\n");
++#endif
++}
++
++/**
++ * Set the SRP Request bit
++ */
++static ssize_t srp_store(struct device *_dev,
++			 struct device_attribute *attr,
++			 const char *buf, size_t count)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	dwc_otg_pcd_initiate_srp(otg_dev->pcd);
++#endif
++	return count;
++}
++
++DEVICE_ATTR(srp, 0644, srp_show, srp_store);
++
++/**
++ * @todo Need to do more for power on/off?
++ */
++/**
++ * Show the Bus Power status
++ */
++static ssize_t buspower_show(struct device *_dev,
++			     struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "Bus Power = 0x%x\n",
++		       dwc_otg_get_prtpower(otg_dev->core_if));
++}
++
++/**
++ * Set the Bus Power status
++ */
++static ssize_t buspower_store(struct device *_dev,
++			      struct device_attribute *attr,
++			      const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t on = simple_strtoul(buf, NULL, 16);
++	dwc_otg_set_prtpower(otg_dev->core_if, on);
++	return count;
++}
++
++DEVICE_ATTR(buspower, 0644, buspower_show, buspower_store);
++
++/**
++ * @todo Need to do more for suspend?
++ */
++/**
++ * Show the Bus Suspend status
++ */
++static ssize_t bussuspend_show(struct device *_dev,
++			       struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "Bus Suspend = 0x%x\n",
++		       dwc_otg_get_prtsuspend(otg_dev->core_if));
++}
++
++/**
++ * Set the Bus Suspend status
++ */
++static ssize_t bussuspend_store(struct device *_dev,
++				struct device_attribute *attr,
++				const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t in = simple_strtoul(buf, NULL, 16);
++	dwc_otg_set_prtsuspend(otg_dev->core_if, in);
++	return count;
++}
++
++DEVICE_ATTR(bussuspend, 0644, bussuspend_show, bussuspend_store);
++
++/**
++ * Show the Mode Change Ready Timer status
++ */
++static ssize_t mode_ch_tim_en_show(struct device *_dev,
++				   struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "Mode Change Ready Timer Enable = 0x%x\n",
++		       dwc_otg_get_mode_ch_tim(otg_dev->core_if));
++}
++
++/**
++ * Set the Mode Change Ready Timer status
++ */
++static ssize_t mode_ch_tim_en_store(struct device *_dev,
++				    struct device_attribute *attr,
++				    const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t in = simple_strtoul(buf, NULL, 16);
++	dwc_otg_set_mode_ch_tim(otg_dev->core_if, in);
++	return count;
++}
++
++DEVICE_ATTR(mode_ch_tim_en, 0644, mode_ch_tim_en_show, mode_ch_tim_en_store);
++
++/**
++ * Show the value of HFIR Frame Interval bitfield
++ */
++static ssize_t fr_interval_show(struct device *_dev,
++				struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "Frame Interval = 0x%x\n",
++		       dwc_otg_get_fr_interval(otg_dev->core_if));
++}
++
++/**
++ * Set the HFIR Frame Interval value
++ */
++static ssize_t fr_interval_store(struct device *_dev,
++				 struct device_attribute *attr,
++				 const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t in = simple_strtoul(buf, NULL, 10);
++	dwc_otg_set_fr_interval(otg_dev->core_if, in);
++	return count;
++}
++
++DEVICE_ATTR(fr_interval, 0644, fr_interval_show, fr_interval_store);
++
++/**
++ * Show the status of Remote Wakeup.
++ */
++static ssize_t remote_wakeup_show(struct device *_dev,
++				  struct device_attribute *attr, char *buf)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	return sprintf(buf,
++		       "Remote Wakeup Sig = %d Enabled = %d LPM Remote Wakeup = %d\n",
++		       dwc_otg_get_remotewakesig(otg_dev->core_if),
++		       dwc_otg_pcd_get_rmwkup_enable(otg_dev->pcd),
++		       dwc_otg_get_lpm_remotewakeenabled(otg_dev->core_if));
++#else
++	return sprintf(buf, "Host Only Mode!\n");
++#endif /* DWC_HOST_ONLY */
++}
++
++/**
++ * Initiate a remote wakeup of the host.  The Device control register
++ * Remote Wakeup Signal bit is written if the PCD Remote wakeup enable
++ * flag is set.
++ *
++ */
++static ssize_t remote_wakeup_store(struct device *_dev,
++				   struct device_attribute *attr,
++				   const char *buf, size_t count)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t val = simple_strtoul(buf, NULL, 16);
++
++	if (val & 1) {
++		dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 1);
++	} else {
++		dwc_otg_pcd_remote_wakeup(otg_dev->pcd, 0);
++	}
++#endif /* DWC_HOST_ONLY */
++	return count;
++}
++
++DEVICE_ATTR(remote_wakeup, S_IRUGO | S_IWUSR, remote_wakeup_show,
++	    remote_wakeup_store);
++
++/**
++ * Show the whether core is hibernated or not.
++ */
++static ssize_t rem_wakeup_pwrdn_show(struct device *_dev,
++				     struct device_attribute *attr, char *buf)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	if (dwc_otg_get_core_state(otg_dev->core_if)) {
++		DWC_PRINTF("Core is in hibernation\n");
++	} else {
++		DWC_PRINTF("Core is not in hibernation\n");
++	}
++#endif /* DWC_HOST_ONLY */
++	return 0;
++}
++
++extern int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if,
++					      int rem_wakeup, int reset);
++
++/**
++ * Initiate a remote wakeup of the device to exit from hibernation.
++ */
++static ssize_t rem_wakeup_pwrdn_store(struct device *_dev,
++				      struct device_attribute *attr,
++				      const char *buf, size_t count)
++{
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	dwc_otg_device_hibernation_restore(otg_dev->core_if, 1, 0);
++#endif
++	return count;
++}
++
++DEVICE_ATTR(rem_wakeup_pwrdn, S_IRUGO | S_IWUSR, rem_wakeup_pwrdn_show,
++	    rem_wakeup_pwrdn_store);
++
++static ssize_t disconnect_us(struct device *_dev,
++			     struct device_attribute *attr,
++			     const char *buf, size_t count)
++{
++
++#ifndef DWC_HOST_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t val = simple_strtoul(buf, NULL, 16);
++	DWC_PRINTF("The Passed value is %04x\n", val);
++
++	dwc_otg_pcd_disconnect_us(otg_dev->pcd, 50);
++
++#endif /* DWC_HOST_ONLY */
++	return count;
++}
++
++DEVICE_ATTR(disconnect_us, S_IWUSR, 0, disconnect_us);
++
++/**
++ * Dump global registers and either host or device registers (depending on the
++ * current mode of the core).
++ */
++static ssize_t regdump_show(struct device *_dev,
++			    struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	dwc_otg_dump_global_registers(otg_dev->core_if);
++	if (dwc_otg_is_host_mode(otg_dev->core_if)) {
++		dwc_otg_dump_host_registers(otg_dev->core_if);
++	} else {
++		dwc_otg_dump_dev_registers(otg_dev->core_if);
++
++	}
++	return sprintf(buf, "Register Dump\n");
++}
++
++DEVICE_ATTR(regdump, S_IRUGO, regdump_show, 0);
++
++/**
++ * Dump global registers and either host or device registers (depending on the
++ * current mode of the core).
++ */
++static ssize_t spramdump_show(struct device *_dev,
++			      struct device_attribute *attr, char *buf)
++{
++#if 0
++	dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	dwc_otg_dump_spram(otg_dev->core_if);
++#endif
++
++	return sprintf(buf, "SPRAM Dump\n");
++}
++
++DEVICE_ATTR(spramdump, S_IRUGO, spramdump_show, 0);
++
++/**
++ * Dump the current hcd state.
++ */
++static ssize_t hcddump_show(struct device *_dev,
++			    struct device_attribute *attr, char *buf)
++{
++#ifndef DWC_DEVICE_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	dwc_otg_hcd_dump_state(otg_dev->hcd);
++#endif /* DWC_DEVICE_ONLY */
++	return sprintf(buf, "HCD Dump\n");
++}
++
++DEVICE_ATTR(hcddump, S_IRUGO, hcddump_show, 0);
++
++/**
++ * Dump the average frame remaining at SOF. This can be used to
++ * determine average interrupt latency. Frame remaining is also shown for
++ * start transfer and two additional sample points.
++ */
++static ssize_t hcd_frrem_show(struct device *_dev,
++			      struct device_attribute *attr, char *buf)
++{
++#ifndef DWC_DEVICE_ONLY
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	dwc_otg_hcd_dump_frrem(otg_dev->hcd);
++#endif /* DWC_DEVICE_ONLY */
++	return sprintf(buf, "HCD Dump Frame Remaining\n");
++}
++
++DEVICE_ATTR(hcd_frrem, S_IRUGO, hcd_frrem_show, 0);
++
++/**
++ * Displays the time required to read the GNPTXFSIZ register many times (the
++ * output shows the number of times the register is read).
++ */
++#define RW_REG_COUNT 10000000
++#define MSEC_PER_JIFFIE 1000/HZ
++static ssize_t rd_reg_test_show(struct device *_dev,
++				struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	int i;
++	int time;
++	int start_jiffies;
++
++	printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n",
++	       HZ, MSEC_PER_JIFFIE, loops_per_jiffy);
++	start_jiffies = jiffies;
++	for (i = 0; i < RW_REG_COUNT; i++) {
++		dwc_otg_get_gnptxfsiz(otg_dev->core_if);
++	}
++	time = jiffies - start_jiffies;
++	return sprintf(buf,
++		       "Time to read GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n",
++		       RW_REG_COUNT, time * MSEC_PER_JIFFIE, time);
++}
++
++DEVICE_ATTR(rd_reg_test, S_IRUGO, rd_reg_test_show, 0);
++
++/**
++ * Displays the time required to write the GNPTXFSIZ register many times (the
++ * output shows the number of times the register is written).
++ */
++static ssize_t wr_reg_test_show(struct device *_dev,
++				struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t reg_val;
++	int i;
++	int time;
++	int start_jiffies;
++
++	printk("HZ %d, MSEC_PER_JIFFIE %d, loops_per_jiffy %lu\n",
++	       HZ, MSEC_PER_JIFFIE, loops_per_jiffy);
++	reg_val = dwc_otg_get_gnptxfsiz(otg_dev->core_if);
++	start_jiffies = jiffies;
++	for (i = 0; i < RW_REG_COUNT; i++) {
++		dwc_otg_set_gnptxfsiz(otg_dev->core_if, reg_val);
++	}
++	time = jiffies - start_jiffies;
++	return sprintf(buf,
++		       "Time to write GNPTXFSIZ reg %d times: %d msecs (%d jiffies)\n",
++		       RW_REG_COUNT, time * MSEC_PER_JIFFIE, time);
++}
++
++DEVICE_ATTR(wr_reg_test, S_IRUGO, wr_reg_test_show, 0);
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++
++/**
++* Show the lpm_response attribute.
++*/
++static ssize_t lpmresp_show(struct device *_dev,
++			    struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++
++	if (!dwc_otg_get_param_lpm_enable(otg_dev->core_if))
++		return sprintf(buf, "** LPM is DISABLED **\n");
++
++	if (!dwc_otg_is_device_mode(otg_dev->core_if)) {
++		return sprintf(buf, "** Current mode is not device mode\n");
++	}
++	return sprintf(buf, "lpm_response = %d\n",
++		       dwc_otg_get_lpmresponse(otg_dev->core_if));
++}
++
++/**
++* Store the lpm_response attribute.
++*/
++static ssize_t lpmresp_store(struct device *_dev,
++			     struct device_attribute *attr,
++			     const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	uint32_t val = simple_strtoul(buf, NULL, 16);
++
++	if (!dwc_otg_get_param_lpm_enable(otg_dev->core_if)) {
++		return 0;
++	}
++
++	if (!dwc_otg_is_device_mode(otg_dev->core_if)) {
++		return 0;
++	}
++
++	dwc_otg_set_lpmresponse(otg_dev->core_if, val);
++	return count;
++}
++
++DEVICE_ATTR(lpm_response, S_IRUGO | S_IWUSR, lpmresp_show, lpmresp_store);
++
++/**
++* Show the sleep_status attribute.
++*/
++static ssize_t sleepstatus_show(struct device *_dev,
++				struct device_attribute *attr, char *buf)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	return sprintf(buf, "Sleep Status = %d\n",
++		       dwc_otg_get_lpm_portsleepstatus(otg_dev->core_if));
++}
++
++/**
++ * Store the sleep_status attribure.
++ */
++static ssize_t sleepstatus_store(struct device *_dev,
++				 struct device_attribute *attr,
++				 const char *buf, size_t count)
++{
++        dwc_otg_device_t *otg_dev = dwc_otg_drvdev(_dev);
++	dwc_otg_core_if_t *core_if = otg_dev->core_if;
++
++	if (dwc_otg_get_lpm_portsleepstatus(otg_dev->core_if)) {
++		if (dwc_otg_is_host_mode(core_if)) {
++
++			DWC_PRINTF("Host initiated resume\n");
++			dwc_otg_set_prtresume(otg_dev->core_if, 1);
++		}
++	}
++
++	return count;
++}
++
++DEVICE_ATTR(sleep_status, S_IRUGO | S_IWUSR, sleepstatus_show,
++	    sleepstatus_store);
++
++#endif /* CONFIG_USB_DWC_OTG_LPM_ENABLE */
++
++/**@}*/
++
++/**
++ * Create the device files
++ */
++void dwc_otg_attr_create(
++#ifdef LM_INTERFACE
++	struct lm_device *dev
++#elif  defined(PCI_INTERFACE)
++	struct pci_dev *dev
++#elif  defined(PLATFORM_INTERFACE)
++        struct platform_device *dev
++#endif
++    )
++{
++	int error;
++
++	error = device_create_file(&dev->dev, &dev_attr_regoffset);
++	error = device_create_file(&dev->dev, &dev_attr_regvalue);
++	error = device_create_file(&dev->dev, &dev_attr_mode);
++	error = device_create_file(&dev->dev, &dev_attr_hnpcapable);
++	error = device_create_file(&dev->dev, &dev_attr_srpcapable);
++	error = device_create_file(&dev->dev, &dev_attr_hsic_connect);
++	error = device_create_file(&dev->dev, &dev_attr_inv_sel_hsic);
++	error = device_create_file(&dev->dev, &dev_attr_hnp);
++	error = device_create_file(&dev->dev, &dev_attr_srp);
++	error = device_create_file(&dev->dev, &dev_attr_buspower);
++	error = device_create_file(&dev->dev, &dev_attr_bussuspend);
++	error = device_create_file(&dev->dev, &dev_attr_mode_ch_tim_en);
++	error = device_create_file(&dev->dev, &dev_attr_fr_interval);
++	error = device_create_file(&dev->dev, &dev_attr_busconnected);
++	error = device_create_file(&dev->dev, &dev_attr_gotgctl);
++	error = device_create_file(&dev->dev, &dev_attr_gusbcfg);
++	error = device_create_file(&dev->dev, &dev_attr_grxfsiz);
++	error = device_create_file(&dev->dev, &dev_attr_gnptxfsiz);
++	error = device_create_file(&dev->dev, &dev_attr_gpvndctl);
++	error = device_create_file(&dev->dev, &dev_attr_ggpio);
++	error = device_create_file(&dev->dev, &dev_attr_guid);
++	error = device_create_file(&dev->dev, &dev_attr_gsnpsid);
++	error = device_create_file(&dev->dev, &dev_attr_devspeed);
++	error = device_create_file(&dev->dev, &dev_attr_enumspeed);
++	error = device_create_file(&dev->dev, &dev_attr_hptxfsiz);
++	error = device_create_file(&dev->dev, &dev_attr_hprt0);
++	error = device_create_file(&dev->dev, &dev_attr_remote_wakeup);
++	error = device_create_file(&dev->dev, &dev_attr_rem_wakeup_pwrdn);
++	error = device_create_file(&dev->dev, &dev_attr_disconnect_us);
++	error = device_create_file(&dev->dev, &dev_attr_regdump);
++	error = device_create_file(&dev->dev, &dev_attr_spramdump);
++	error = device_create_file(&dev->dev, &dev_attr_hcddump);
++	error = device_create_file(&dev->dev, &dev_attr_hcd_frrem);
++	error = device_create_file(&dev->dev, &dev_attr_rd_reg_test);
++	error = device_create_file(&dev->dev, &dev_attr_wr_reg_test);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	error = device_create_file(&dev->dev, &dev_attr_lpm_response);
++	error = device_create_file(&dev->dev, &dev_attr_sleep_status);
++#endif
++}
++
++/**
++ * Remove the device files
++ */
++void dwc_otg_attr_remove(
++#ifdef LM_INTERFACE
++	struct lm_device *dev
++#elif  defined(PCI_INTERFACE)
++	struct pci_dev *dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *dev
++#endif
++    )
++{
++	device_remove_file(&dev->dev, &dev_attr_regoffset);
++	device_remove_file(&dev->dev, &dev_attr_regvalue);
++	device_remove_file(&dev->dev, &dev_attr_mode);
++	device_remove_file(&dev->dev, &dev_attr_hnpcapable);
++	device_remove_file(&dev->dev, &dev_attr_srpcapable);
++	device_remove_file(&dev->dev, &dev_attr_hsic_connect);
++	device_remove_file(&dev->dev, &dev_attr_inv_sel_hsic);
++	device_remove_file(&dev->dev, &dev_attr_hnp);
++	device_remove_file(&dev->dev, &dev_attr_srp);
++	device_remove_file(&dev->dev, &dev_attr_buspower);
++	device_remove_file(&dev->dev, &dev_attr_bussuspend);
++	device_remove_file(&dev->dev, &dev_attr_mode_ch_tim_en);
++	device_remove_file(&dev->dev, &dev_attr_fr_interval);
++	device_remove_file(&dev->dev, &dev_attr_busconnected);
++	device_remove_file(&dev->dev, &dev_attr_gotgctl);
++	device_remove_file(&dev->dev, &dev_attr_gusbcfg);
++	device_remove_file(&dev->dev, &dev_attr_grxfsiz);
++	device_remove_file(&dev->dev, &dev_attr_gnptxfsiz);
++	device_remove_file(&dev->dev, &dev_attr_gpvndctl);
++	device_remove_file(&dev->dev, &dev_attr_ggpio);
++	device_remove_file(&dev->dev, &dev_attr_guid);
++	device_remove_file(&dev->dev, &dev_attr_gsnpsid);
++	device_remove_file(&dev->dev, &dev_attr_devspeed);
++	device_remove_file(&dev->dev, &dev_attr_enumspeed);
++	device_remove_file(&dev->dev, &dev_attr_hptxfsiz);
++	device_remove_file(&dev->dev, &dev_attr_hprt0);
++	device_remove_file(&dev->dev, &dev_attr_remote_wakeup);
++	device_remove_file(&dev->dev, &dev_attr_rem_wakeup_pwrdn);
++	device_remove_file(&dev->dev, &dev_attr_disconnect_us);
++	device_remove_file(&dev->dev, &dev_attr_regdump);
++	device_remove_file(&dev->dev, &dev_attr_spramdump);
++	device_remove_file(&dev->dev, &dev_attr_hcddump);
++	device_remove_file(&dev->dev, &dev_attr_hcd_frrem);
++	device_remove_file(&dev->dev, &dev_attr_rd_reg_test);
++	device_remove_file(&dev->dev, &dev_attr_wr_reg_test);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	device_remove_file(&dev->dev, &dev_attr_lpm_response);
++	device_remove_file(&dev->dev, &dev_attr_sleep_status);
++#endif
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_attr.h
+@@ -0,0 +1,89 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_attr.h $
++ * $Revision: #13 $
++ * $Date: 2010/06/21 $
++ * $Change: 1532021 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#if !defined(__DWC_OTG_ATTR_H__)
++#define __DWC_OTG_ATTR_H__
++
++/** @file
++ * This file contains the interface to the Linux device attributes.
++ */
++extern struct device_attribute dev_attr_regoffset;
++extern struct device_attribute dev_attr_regvalue;
++
++extern struct device_attribute dev_attr_mode;
++extern struct device_attribute dev_attr_hnpcapable;
++extern struct device_attribute dev_attr_srpcapable;
++extern struct device_attribute dev_attr_hnp;
++extern struct device_attribute dev_attr_srp;
++extern struct device_attribute dev_attr_buspower;
++extern struct device_attribute dev_attr_bussuspend;
++extern struct device_attribute dev_attr_mode_ch_tim_en;
++extern struct device_attribute dev_attr_fr_interval;
++extern struct device_attribute dev_attr_busconnected;
++extern struct device_attribute dev_attr_gotgctl;
++extern struct device_attribute dev_attr_gusbcfg;
++extern struct device_attribute dev_attr_grxfsiz;
++extern struct device_attribute dev_attr_gnptxfsiz;
++extern struct device_attribute dev_attr_gpvndctl;
++extern struct device_attribute dev_attr_ggpio;
++extern struct device_attribute dev_attr_guid;
++extern struct device_attribute dev_attr_gsnpsid;
++extern struct device_attribute dev_attr_devspeed;
++extern struct device_attribute dev_attr_enumspeed;
++extern struct device_attribute dev_attr_hptxfsiz;
++extern struct device_attribute dev_attr_hprt0;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++extern struct device_attribute dev_attr_lpm_response;
++extern struct device_attribute devi_attr_sleep_status;
++#endif
++
++void dwc_otg_attr_create(
++#ifdef LM_INTERFACE
++				struct lm_device *dev
++#elif  defined(PCI_INTERFACE)
++				struct pci_dev *dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *dev
++#endif
++    );
++
++void dwc_otg_attr_remove(
++#ifdef LM_INTERFACE
++				struct lm_device *dev
++#elif  defined(PCI_INTERFACE)
++				struct pci_dev *dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *dev
++#endif
++    );
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cfi.c
+@@ -0,0 +1,1876 @@
++/* ==========================================================================
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++/** @file
++ *
++ * This file contains the most of the CFI(Core Feature Interface)
++ * implementation for the OTG.
++ */
++
++#ifdef DWC_UTE_CFI
++
++#include "dwc_otg_pcd.h"
++#include "dwc_otg_cfi.h"
++
++/** This definition should actually migrate to the Portability Library */
++#define DWC_CONSTANT_CPU_TO_LE16(x) (x)
++
++extern dwc_otg_pcd_ep_t *get_ep_by_addr(dwc_otg_pcd_t * pcd, u16 wIndex);
++
++static int cfi_core_features_buf(uint8_t * buf, uint16_t buflen);
++static int cfi_get_feature_value(uint8_t * buf, uint16_t buflen,
++				 struct dwc_otg_pcd *pcd,
++				 struct cfi_usb_ctrlrequest *ctrl_req);
++static int cfi_set_feature_value(struct dwc_otg_pcd *pcd);
++static int cfi_ep_get_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++			     struct cfi_usb_ctrlrequest *req);
++static int cfi_ep_get_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++				 struct cfi_usb_ctrlrequest *req);
++static int cfi_ep_get_align_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++				struct cfi_usb_ctrlrequest *req);
++static int cfi_preproc_reset(struct dwc_otg_pcd *pcd,
++			     struct cfi_usb_ctrlrequest *req);
++static void cfi_free_ep_bs_dyn_data(cfi_ep_t * cfiep);
++
++static uint16_t get_dfifo_size(dwc_otg_core_if_t * core_if);
++static int32_t get_rxfifo_size(dwc_otg_core_if_t * core_if, uint16_t wValue);
++static int32_t get_txfifo_size(struct dwc_otg_pcd *pcd, uint16_t wValue);
++
++static uint8_t resize_fifos(dwc_otg_core_if_t * core_if);
++
++/** This is the header of the all features descriptor */
++static cfi_all_features_header_t all_props_desc_header = {
++	.wVersion = DWC_CONSTANT_CPU_TO_LE16(0x100),
++	.wCoreID = DWC_CONSTANT_CPU_TO_LE16(CFI_CORE_ID_OTG),
++	.wNumFeatures = DWC_CONSTANT_CPU_TO_LE16(9),
++};
++
++/** This is an array of statically allocated feature descriptors */
++static cfi_feature_desc_header_t prop_descs[] = {
++
++	/* FT_ID_DMA_MODE */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_MODE),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(1),
++	 },
++
++	/* FT_ID_DMA_BUFFER_SETUP */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_BUFFER_SETUP),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6),
++	 },
++
++	/* FT_ID_DMA_BUFF_ALIGN */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_BUFF_ALIGN),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2),
++	 },
++
++	/* FT_ID_DMA_CONCAT_SETUP */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_CONCAT_SETUP),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 //.wDataLength  = DWC_CONSTANT_CPU_TO_LE16(6),
++	 },
++
++	/* FT_ID_DMA_CIRCULAR */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DMA_CIRCULAR),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6),
++	 },
++
++	/* FT_ID_THRESHOLD_SETUP */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_THRESHOLD_SETUP),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(6),
++	 },
++
++	/* FT_ID_DFIFO_DEPTH */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_DFIFO_DEPTH),
++	 .bmAttributes = CFI_FEATURE_ATTR_RO,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2),
++	 },
++
++	/* FT_ID_TX_FIFO_DEPTH */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_TX_FIFO_DEPTH),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2),
++	 },
++
++	/* FT_ID_RX_FIFO_DEPTH */
++	{
++	 .wFeatureID = DWC_CONSTANT_CPU_TO_LE16(FT_ID_RX_FIFO_DEPTH),
++	 .bmAttributes = CFI_FEATURE_ATTR_RW,
++	 .wDataLength = DWC_CONSTANT_CPU_TO_LE16(2),
++	 }
++};
++
++/** The table of feature names */
++cfi_string_t prop_name_table[] = {
++	{FT_ID_DMA_MODE, "dma_mode"},
++	{FT_ID_DMA_BUFFER_SETUP, "buffer_setup"},
++	{FT_ID_DMA_BUFF_ALIGN, "buffer_align"},
++	{FT_ID_DMA_CONCAT_SETUP, "concat_setup"},
++	{FT_ID_DMA_CIRCULAR, "buffer_circular"},
++	{FT_ID_THRESHOLD_SETUP, "threshold_setup"},
++	{FT_ID_DFIFO_DEPTH, "dfifo_depth"},
++	{FT_ID_TX_FIFO_DEPTH, "txfifo_depth"},
++	{FT_ID_RX_FIFO_DEPTH, "rxfifo_depth"},
++	{}
++};
++
++/************************************************************************/
++
++/**
++ * Returns the name of the feature by its ID
++ * or NULL if no featute ID matches.
++ *
++ */
++const uint8_t *get_prop_name(uint16_t prop_id, int *len)
++{
++	cfi_string_t *pstr;
++	*len = 0;
++
++	for (pstr = prop_name_table; pstr && pstr->s; pstr++) {
++		if (pstr->id == prop_id) {
++			*len = DWC_STRLEN(pstr->s);
++			return pstr->s;
++		}
++	}
++	return NULL;
++}
++
++/**
++ * This function handles all CFI specific control requests.
++ *
++ * Return a negative value to stall the DCE.
++ */
++int cfi_setup(struct dwc_otg_pcd *pcd, struct cfi_usb_ctrlrequest *ctrl)
++{
++	int retval = 0;
++	dwc_otg_pcd_ep_t *ep = NULL;
++	cfiobject_t *cfi = pcd->cfi;
++	struct dwc_otg_core_if *coreif = GET_CORE_IF(pcd);
++	uint16_t wLen = DWC_LE16_TO_CPU(&ctrl->wLength);
++	uint16_t wValue = DWC_LE16_TO_CPU(&ctrl->wValue);
++	uint16_t wIndex = DWC_LE16_TO_CPU(&ctrl->wIndex);
++	uint32_t regaddr = 0;
++	uint32_t regval = 0;
++
++	/* Save this Control Request in the CFI object.
++	 * The data field will be assigned in the data stage completion CB function.
++	 */
++	cfi->ctrl_req = *ctrl;
++	cfi->ctrl_req.data = NULL;
++
++	cfi->need_gadget_att = 0;
++	cfi->need_status_in_complete = 0;
++
++	switch (ctrl->bRequest) {
++	case VEN_CORE_GET_FEATURES:
++		retval = cfi_core_features_buf(cfi->buf_in.buf, CFI_IN_BUF_LEN);
++		if (retval >= 0) {
++			//dump_msg(cfi->buf_in.buf, retval);
++			ep = &pcd->ep0;
++
++			retval = min((uint16_t) retval, wLen);
++			/* Transfer this buffer to the host through the EP0-IN EP */
++			ep->dwc_ep.dma_addr = cfi->buf_in.addr;
++			ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf;
++			ep->dwc_ep.xfer_buff = cfi->buf_in.buf;
++			ep->dwc_ep.xfer_len = retval;
++			ep->dwc_ep.xfer_count = 0;
++			ep->dwc_ep.sent_zlp = 0;
++			ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++			pcd->ep0_pending = 1;
++			dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep);
++		}
++		retval = 0;
++		break;
++
++	case VEN_CORE_GET_FEATURE:
++		CFI_INFO("VEN_CORE_GET_FEATURE\n");
++		retval = cfi_get_feature_value(cfi->buf_in.buf, CFI_IN_BUF_LEN,
++					       pcd, ctrl);
++		if (retval >= 0) {
++			ep = &pcd->ep0;
++
++			retval = min((uint16_t) retval, wLen);
++			/* Transfer this buffer to the host through the EP0-IN EP */
++			ep->dwc_ep.dma_addr = cfi->buf_in.addr;
++			ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf;
++			ep->dwc_ep.xfer_buff = cfi->buf_in.buf;
++			ep->dwc_ep.xfer_len = retval;
++			ep->dwc_ep.xfer_count = 0;
++			ep->dwc_ep.sent_zlp = 0;
++			ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++			pcd->ep0_pending = 1;
++			dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep);
++		}
++		CFI_INFO("VEN_CORE_GET_FEATURE=%d\n", retval);
++		dump_msg(cfi->buf_in.buf, retval);
++		break;
++
++	case VEN_CORE_SET_FEATURE:
++		CFI_INFO("VEN_CORE_SET_FEATURE\n");
++		/* Set up an XFER to get the data stage of the control request,
++		 * which is the new value of the feature to be modified.
++		 */
++		ep = &pcd->ep0;
++		ep->dwc_ep.is_in = 0;
++		ep->dwc_ep.dma_addr = cfi->buf_out.addr;
++		ep->dwc_ep.start_xfer_buff = cfi->buf_out.buf;
++		ep->dwc_ep.xfer_buff = cfi->buf_out.buf;
++		ep->dwc_ep.xfer_len = wLen;
++		ep->dwc_ep.xfer_count = 0;
++		ep->dwc_ep.sent_zlp = 0;
++		ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++		pcd->ep0_pending = 1;
++		/* Read the control write's data stage */
++		dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep);
++		retval = 0;
++		break;
++
++	case VEN_CORE_RESET_FEATURES:
++		CFI_INFO("VEN_CORE_RESET_FEATURES\n");
++		cfi->need_gadget_att = 1;
++		cfi->need_status_in_complete = 1;
++		retval = cfi_preproc_reset(pcd, ctrl);
++		CFI_INFO("VEN_CORE_RESET_FEATURES = (%d)\n", retval);
++		break;
++
++	case VEN_CORE_ACTIVATE_FEATURES:
++		CFI_INFO("VEN_CORE_ACTIVATE_FEATURES\n");
++		break;
++
++	case VEN_CORE_READ_REGISTER:
++		CFI_INFO("VEN_CORE_READ_REGISTER\n");
++		/* wValue optionally contains the HI WORD of the register offset and
++		 * wIndex contains the LOW WORD of the register offset
++		 */
++		if (wValue == 0) {
++			/* @TODO - MAS - fix the access to the base field */
++			regaddr = 0;
++			//regaddr = (uint32_t) pcd->otg_dev->os_dep.base;
++			//GET_CORE_IF(pcd)->co
++			regaddr |= wIndex;
++		} else {
++			regaddr = (wValue << 16) | wIndex;
++		}
++
++		/* Read a 32-bit value of the memory at the regaddr */
++		regval = DWC_READ_REG32((uint32_t *) regaddr);
++
++		ep = &pcd->ep0;
++		dwc_memcpy(cfi->buf_in.buf, &regval, sizeof(uint32_t));
++		ep->dwc_ep.is_in = 1;
++		ep->dwc_ep.dma_addr = cfi->buf_in.addr;
++		ep->dwc_ep.start_xfer_buff = cfi->buf_in.buf;
++		ep->dwc_ep.xfer_buff = cfi->buf_in.buf;
++		ep->dwc_ep.xfer_len = wLen;
++		ep->dwc_ep.xfer_count = 0;
++		ep->dwc_ep.sent_zlp = 0;
++		ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++		pcd->ep0_pending = 1;
++		dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep);
++		cfi->need_gadget_att = 0;
++		retval = 0;
++		break;
++
++	case VEN_CORE_WRITE_REGISTER:
++		CFI_INFO("VEN_CORE_WRITE_REGISTER\n");
++		/* Set up an XFER to get the data stage of the control request,
++		 * which is the new value of the register to be modified.
++		 */
++		ep = &pcd->ep0;
++		ep->dwc_ep.is_in = 0;
++		ep->dwc_ep.dma_addr = cfi->buf_out.addr;
++		ep->dwc_ep.start_xfer_buff = cfi->buf_out.buf;
++		ep->dwc_ep.xfer_buff = cfi->buf_out.buf;
++		ep->dwc_ep.xfer_len = wLen;
++		ep->dwc_ep.xfer_count = 0;
++		ep->dwc_ep.sent_zlp = 0;
++		ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++		pcd->ep0_pending = 1;
++		/* Read the control write's data stage */
++		dwc_otg_ep0_start_transfer(coreif, &ep->dwc_ep);
++		retval = 0;
++		break;
++
++	default:
++		retval = -DWC_E_NOT_SUPPORTED;
++		break;
++	}
++
++	return retval;
++}
++
++/**
++ * This function prepares the core features descriptors and copies its
++ * raw representation into the buffer <buf>.
++ *
++ * The buffer structure is as follows:
++ *	all_features_header (8 bytes)
++ *	features_#1 (8 bytes + feature name string length)
++ *	features_#2 (8 bytes + feature name string length)
++ *	.....
++ *	features_#n - where n=the total count of feature descriptors
++ */
++static int cfi_core_features_buf(uint8_t * buf, uint16_t buflen)
++{
++	cfi_feature_desc_header_t *prop_hdr = prop_descs;
++	cfi_feature_desc_header_t *prop;
++	cfi_all_features_header_t *all_props_hdr = &all_props_desc_header;
++	cfi_all_features_header_t *tmp;
++	uint8_t *tmpbuf = buf;
++	const uint8_t *pname = NULL;
++	int i, j, namelen = 0, totlen;
++
++	/* Prepare and copy the core features into the buffer */
++	CFI_INFO("%s:\n", __func__);
++
++	tmp = (cfi_all_features_header_t *) tmpbuf;
++	*tmp = *all_props_hdr;
++	tmpbuf += CFI_ALL_FEATURES_HDR_LEN;
++
++	j = sizeof(prop_descs) / sizeof(cfi_all_features_header_t);
++	for (i = 0; i < j; i++, prop_hdr++) {
++		pname = get_prop_name(prop_hdr->wFeatureID, &namelen);
++		prop = (cfi_feature_desc_header_t *) tmpbuf;
++		*prop = *prop_hdr;
++
++		prop->bNameLen = namelen;
++		prop->wLength =
++		    DWC_CONSTANT_CPU_TO_LE16(CFI_FEATURE_DESC_HDR_LEN +
++					     namelen);
++
++		tmpbuf += CFI_FEATURE_DESC_HDR_LEN;
++		dwc_memcpy(tmpbuf, pname, namelen);
++		tmpbuf += namelen;
++	}
++
++	totlen = tmpbuf - buf;
++
++	if (totlen > 0) {
++		tmp = (cfi_all_features_header_t *) buf;
++		tmp->wTotalLen = DWC_CONSTANT_CPU_TO_LE16(totlen);
++	}
++
++	return totlen;
++}
++
++/**
++ * This function releases all the dynamic memory in the CFI object.
++ */
++static void cfi_release(cfiobject_t * cfiobj)
++{
++	cfi_ep_t *cfiep;
++	dwc_list_link_t *tmp;
++
++	CFI_INFO("%s\n", __func__);
++
++	if (cfiobj->buf_in.buf) {
++		DWC_DMA_FREE(CFI_IN_BUF_LEN, cfiobj->buf_in.buf,
++			     cfiobj->buf_in.addr);
++		cfiobj->buf_in.buf = NULL;
++	}
++
++	if (cfiobj->buf_out.buf) {
++		DWC_DMA_FREE(CFI_OUT_BUF_LEN, cfiobj->buf_out.buf,
++			     cfiobj->buf_out.addr);
++		cfiobj->buf_out.buf = NULL;
++	}
++
++	/* Free the Buffer Setup values for each EP */
++	//list_for_each_entry(cfiep, &cfiobj->active_eps, lh) {
++	DWC_LIST_FOREACH(tmp, &cfiobj->active_eps) {
++		cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++		cfi_free_ep_bs_dyn_data(cfiep);
++	}
++}
++
++/**
++ * This function frees the dynamically allocated EP buffer setup data.
++ */
++static void cfi_free_ep_bs_dyn_data(cfi_ep_t * cfiep)
++{
++	if (cfiep->bm_sg) {
++		DWC_FREE(cfiep->bm_sg);
++		cfiep->bm_sg = NULL;
++	}
++
++	if (cfiep->bm_align) {
++		DWC_FREE(cfiep->bm_align);
++		cfiep->bm_align = NULL;
++	}
++
++	if (cfiep->bm_concat) {
++		if (NULL != cfiep->bm_concat->wTxBytes) {
++			DWC_FREE(cfiep->bm_concat->wTxBytes);
++			cfiep->bm_concat->wTxBytes = NULL;
++		}
++		DWC_FREE(cfiep->bm_concat);
++		cfiep->bm_concat = NULL;
++	}
++}
++
++/**
++ * This function initializes the default values of the features
++ * for a specific endpoint and should be called only once when
++ * the EP is enabled first time.
++ */
++static int cfi_ep_init_defaults(struct dwc_otg_pcd *pcd, cfi_ep_t * cfiep)
++{
++	int retval = 0;
++
++	cfiep->bm_sg = DWC_ALLOC(sizeof(ddma_sg_buffer_setup_t));
++	if (NULL == cfiep->bm_sg) {
++		CFI_INFO("Failed to allocate memory for SG feature value\n");
++		return -DWC_E_NO_MEMORY;
++	}
++	dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t));
++
++	/* For the Concatenation feature's default value we do not allocate
++	 * memory for the wTxBytes field - it will be done in the set_feature_value
++	 * request handler.
++	 */
++	cfiep->bm_concat = DWC_ALLOC(sizeof(ddma_concat_buffer_setup_t));
++	if (NULL == cfiep->bm_concat) {
++		CFI_INFO
++		    ("Failed to allocate memory for CONCATENATION feature value\n");
++		DWC_FREE(cfiep->bm_sg);
++		return -DWC_E_NO_MEMORY;
++	}
++	dwc_memset(cfiep->bm_concat, 0, sizeof(ddma_concat_buffer_setup_t));
++
++	cfiep->bm_align = DWC_ALLOC(sizeof(ddma_align_buffer_setup_t));
++	if (NULL == cfiep->bm_align) {
++		CFI_INFO
++		    ("Failed to allocate memory for Alignment feature value\n");
++		DWC_FREE(cfiep->bm_sg);
++		DWC_FREE(cfiep->bm_concat);
++		return -DWC_E_NO_MEMORY;
++	}
++	dwc_memset(cfiep->bm_align, 0, sizeof(ddma_align_buffer_setup_t));
++
++	return retval;
++}
++
++/**
++ * The callback function that notifies the CFI on the activation of
++ * an endpoint in the PCD. The following steps are done in this function:
++ *
++ *	Create a dynamically allocated cfi_ep_t object (a CFI wrapper to the PCD's
++ *		active endpoint)
++ *	Create MAX_DMA_DESCS_PER_EP count DMA Descriptors for the EP
++ *	Set the Buffer Mode to standard
++ *	Initialize the default values for all EP modes (SG, Circular, Concat, Align)
++ *	Add the cfi_ep_t object to the list of active endpoints in the CFI object
++ */
++static int cfi_ep_enable(struct cfiobject *cfi, struct dwc_otg_pcd *pcd,
++			 struct dwc_otg_pcd_ep *ep)
++{
++	cfi_ep_t *cfiep;
++	int retval = -DWC_E_NOT_SUPPORTED;
++
++	CFI_INFO("%s: epname=%s; epnum=0x%02x\n", __func__,
++		 "EP_" /*ep->ep.name */ , ep->desc->bEndpointAddress);
++	/* MAS - Check whether this endpoint already is in the list */
++	cfiep = get_cfi_ep_by_pcd_ep(cfi, ep);
++
++	if (NULL == cfiep) {
++		/* Allocate a cfi_ep_t object */
++		cfiep = DWC_ALLOC(sizeof(cfi_ep_t));
++		if (NULL == cfiep) {
++			CFI_INFO
++			    ("Unable to allocate memory for <cfiep> in function %s\n",
++			     __func__);
++			return -DWC_E_NO_MEMORY;
++		}
++		dwc_memset(cfiep, 0, sizeof(cfi_ep_t));
++
++		/* Save the dwc_otg_pcd_ep pointer in the cfiep object */
++		cfiep->ep = ep;
++
++		/* Allocate the DMA Descriptors chain of MAX_DMA_DESCS_PER_EP count */
++		ep->dwc_ep.descs =
++		    DWC_DMA_ALLOC(MAX_DMA_DESCS_PER_EP *
++				  sizeof(dwc_otg_dma_desc_t),
++				  &ep->dwc_ep.descs_dma_addr);
++
++		if (NULL == ep->dwc_ep.descs) {
++			DWC_FREE(cfiep);
++			return -DWC_E_NO_MEMORY;
++		}
++
++		DWC_LIST_INIT(&cfiep->lh);
++
++		/* Set the buffer mode to BM_STANDARD. It will be modified
++		 * when building descriptors for a specific buffer mode */
++		ep->dwc_ep.buff_mode = BM_STANDARD;
++
++		/* Create and initialize the default values for this EP's Buffer modes */
++		if ((retval = cfi_ep_init_defaults(pcd, cfiep)) < 0)
++			return retval;
++
++		/* Add the cfi_ep_t object to the CFI object's list of active endpoints */
++		DWC_LIST_INSERT_TAIL(&cfi->active_eps, &cfiep->lh);
++		retval = 0;
++	} else {		/* The sought EP already is in the list */
++		CFI_INFO("%s: The sought EP already is in the list\n",
++			 __func__);
++	}
++
++	return retval;
++}
++
++/**
++ * This function is called when the data stage of a 3-stage Control Write request
++ * is complete.
++ *
++ */
++static int cfi_ctrl_write_complete(struct cfiobject *cfi,
++				   struct dwc_otg_pcd *pcd)
++{
++	uint32_t addr, reg_value;
++	uint16_t wIndex, wValue;
++	uint8_t bRequest;
++	uint8_t *buf = cfi->buf_out.buf;
++	//struct usb_ctrlrequest *ctrl_req = &cfi->ctrl_req_saved;
++	struct cfi_usb_ctrlrequest *ctrl_req = &cfi->ctrl_req;
++	int retval = -DWC_E_NOT_SUPPORTED;
++
++	CFI_INFO("%s\n", __func__);
++
++	bRequest = ctrl_req->bRequest;
++	wIndex = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wIndex);
++	wValue = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wValue);
++
++	/*
++	 * Save the pointer to the data stage in the ctrl_req's <data> field.
++	 * The request should be already saved in the command stage by now.
++	 */
++	ctrl_req->data = cfi->buf_out.buf;
++	cfi->need_status_in_complete = 0;
++	cfi->need_gadget_att = 0;
++
++	switch (bRequest) {
++	case VEN_CORE_WRITE_REGISTER:
++		/* The buffer contains raw data of the new value for the register */
++		reg_value = *((uint32_t *) buf);
++		if (wValue == 0) {
++			addr = 0;
++			//addr = (uint32_t) pcd->otg_dev->os_dep.base;
++			addr += wIndex;
++		} else {
++			addr = (wValue << 16) | wIndex;
++		}
++
++		//writel(reg_value, addr);
++
++		retval = 0;
++		cfi->need_status_in_complete = 1;
++		break;
++
++	case VEN_CORE_SET_FEATURE:
++		/* The buffer contains raw data of the new value of the feature */
++		retval = cfi_set_feature_value(pcd);
++		if (retval < 0)
++			return retval;
++
++		cfi->need_status_in_complete = 1;
++		break;
++
++	default:
++		break;
++	}
++
++	return retval;
++}
++
++/**
++ * This function builds the DMA descriptors for the SG buffer mode.
++ */
++static void cfi_build_sg_descs(struct cfiobject *cfi, cfi_ep_t * cfiep,
++			       dwc_otg_pcd_request_t * req)
++{
++	struct dwc_otg_pcd_ep *ep = cfiep->ep;
++	ddma_sg_buffer_setup_t *sgval = cfiep->bm_sg;
++	struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs;
++	struct dwc_otg_dma_desc *desc_last = cfiep->ep->dwc_ep.descs;
++	dma_addr_t buff_addr = req->dma;
++	int i;
++	uint32_t txsize, off;
++
++	txsize = sgval->wSize;
++	off = sgval->bOffset;
++
++//      CFI_INFO("%s: %s TXSIZE=0x%08x; OFFSET=0x%08x\n",
++//              __func__, cfiep->ep->ep.name, txsize, off);
++
++	for (i = 0; i < sgval->bCount; i++) {
++		desc->status.b.bs = BS_HOST_BUSY;
++		desc->buf = buff_addr;
++		desc->status.b.l = 0;
++		desc->status.b.ioc = 0;
++		desc->status.b.sp = 0;
++		desc->status.b.bytes = txsize;
++		desc->status.b.bs = BS_HOST_READY;
++
++		/* Set the next address of the buffer */
++		buff_addr += txsize + off;
++		desc_last = desc;
++		desc++;
++	}
++
++	/* Set the last, ioc and sp bits on the Last DMA Descriptor */
++	desc_last->status.b.l = 1;
++	desc_last->status.b.ioc = 1;
++	desc_last->status.b.sp = ep->dwc_ep.sent_zlp;
++	/* Save the last DMA descriptor pointer */
++	cfiep->dma_desc_last = desc_last;
++	cfiep->desc_count = sgval->bCount;
++}
++
++/**
++ * This function builds the DMA descriptors for the Concatenation buffer mode.
++ */
++static void cfi_build_concat_descs(struct cfiobject *cfi, cfi_ep_t * cfiep,
++				   dwc_otg_pcd_request_t * req)
++{
++	struct dwc_otg_pcd_ep *ep = cfiep->ep;
++	ddma_concat_buffer_setup_t *concatval = cfiep->bm_concat;
++	struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs;
++	struct dwc_otg_dma_desc *desc_last = cfiep->ep->dwc_ep.descs;
++	dma_addr_t buff_addr = req->dma;
++	int i;
++	uint16_t *txsize;
++
++	txsize = concatval->wTxBytes;
++
++	for (i = 0; i < concatval->hdr.bDescCount; i++) {
++		desc->buf = buff_addr;
++		desc->status.b.bs = BS_HOST_BUSY;
++		desc->status.b.l = 0;
++		desc->status.b.ioc = 0;
++		desc->status.b.sp = 0;
++		desc->status.b.bytes = *txsize;
++		desc->status.b.bs = BS_HOST_READY;
++
++		txsize++;
++		/* Set the next address of the buffer */
++		buff_addr += UGETW(ep->desc->wMaxPacketSize);
++		desc_last = desc;
++		desc++;
++	}
++
++	/* Set the last, ioc and sp bits on the Last DMA Descriptor */
++	desc_last->status.b.l = 1;
++	desc_last->status.b.ioc = 1;
++	desc_last->status.b.sp = ep->dwc_ep.sent_zlp;
++	cfiep->dma_desc_last = desc_last;
++	cfiep->desc_count = concatval->hdr.bDescCount;
++}
++
++/**
++ * This function builds the DMA descriptors for the Circular buffer mode
++ */
++static void cfi_build_circ_descs(struct cfiobject *cfi, cfi_ep_t * cfiep,
++				 dwc_otg_pcd_request_t * req)
++{
++	/* @todo: MAS - add implementation when this feature needs to be tested */
++}
++
++/**
++ * This function builds the DMA descriptors for the Alignment buffer mode
++ */
++static void cfi_build_align_descs(struct cfiobject *cfi, cfi_ep_t * cfiep,
++				  dwc_otg_pcd_request_t * req)
++{
++	struct dwc_otg_pcd_ep *ep = cfiep->ep;
++	ddma_align_buffer_setup_t *alignval = cfiep->bm_align;
++	struct dwc_otg_dma_desc *desc = cfiep->ep->dwc_ep.descs;
++	dma_addr_t buff_addr = req->dma;
++
++	desc->status.b.bs = BS_HOST_BUSY;
++	desc->status.b.l = 1;
++	desc->status.b.ioc = 1;
++	desc->status.b.sp = ep->dwc_ep.sent_zlp;
++	desc->status.b.bytes = req->length;
++	/* Adjust the buffer alignment */
++	desc->buf = (buff_addr + alignval->bAlign);
++	desc->status.b.bs = BS_HOST_READY;
++	cfiep->dma_desc_last = desc;
++	cfiep->desc_count = 1;
++}
++
++/**
++ * This function builds the DMA descriptors chain for different modes of the
++ * buffer setup of an endpoint.
++ */
++static void cfi_build_descriptors(struct cfiobject *cfi,
++				  struct dwc_otg_pcd *pcd,
++				  struct dwc_otg_pcd_ep *ep,
++				  dwc_otg_pcd_request_t * req)
++{
++	cfi_ep_t *cfiep;
++
++	/* Get the cfiep by the dwc_otg_pcd_ep */
++	cfiep = get_cfi_ep_by_pcd_ep(cfi, ep);
++	if (NULL == cfiep) {
++		CFI_INFO("%s: Unable to find a matching active endpoint\n",
++			 __func__);
++		return;
++	}
++
++	cfiep->xfer_len = req->length;
++
++	/* Iterate through all the DMA descriptors */
++	switch (cfiep->ep->dwc_ep.buff_mode) {
++	case BM_SG:
++		cfi_build_sg_descs(cfi, cfiep, req);
++		break;
++
++	case BM_CONCAT:
++		cfi_build_concat_descs(cfi, cfiep, req);
++		break;
++
++	case BM_CIRCULAR:
++		cfi_build_circ_descs(cfi, cfiep, req);
++		break;
++
++	case BM_ALIGN:
++		cfi_build_align_descs(cfi, cfiep, req);
++		break;
++
++	default:
++		break;
++	}
++}
++
++/**
++ * Allocate DMA buffer for different Buffer modes.
++ */
++static void *cfi_ep_alloc_buf(struct cfiobject *cfi, struct dwc_otg_pcd *pcd,
++			      struct dwc_otg_pcd_ep *ep, dma_addr_t * dma,
++			      unsigned size, gfp_t flags)
++{
++	return DWC_DMA_ALLOC(size, dma);
++}
++
++/**
++ * This function initializes the CFI object.
++ */
++int init_cfi(cfiobject_t * cfiobj)
++{
++	CFI_INFO("%s\n", __func__);
++
++	/* Allocate a buffer for IN XFERs */
++	cfiobj->buf_in.buf =
++	    DWC_DMA_ALLOC(CFI_IN_BUF_LEN, &cfiobj->buf_in.addr);
++	if (NULL == cfiobj->buf_in.buf) {
++		CFI_INFO("Unable to allocate buffer for INs\n");
++		return -DWC_E_NO_MEMORY;
++	}
++
++	/* Allocate a buffer for OUT XFERs */
++	cfiobj->buf_out.buf =
++	    DWC_DMA_ALLOC(CFI_OUT_BUF_LEN, &cfiobj->buf_out.addr);
++	if (NULL == cfiobj->buf_out.buf) {
++		CFI_INFO("Unable to allocate buffer for OUT\n");
++		return -DWC_E_NO_MEMORY;
++	}
++
++	/* Initialize the callback function pointers */
++	cfiobj->ops.release = cfi_release;
++	cfiobj->ops.ep_enable = cfi_ep_enable;
++	cfiobj->ops.ctrl_write_complete = cfi_ctrl_write_complete;
++	cfiobj->ops.build_descriptors = cfi_build_descriptors;
++	cfiobj->ops.ep_alloc_buf = cfi_ep_alloc_buf;
++
++	/* Initialize the list of active endpoints in the CFI object */
++	DWC_LIST_INIT(&cfiobj->active_eps);
++
++	return 0;
++}
++
++/**
++ * This function reads the required feature's current value into the buffer
++ *
++ * @retval: Returns negative as error, or the data length of the feature
++ */
++static int cfi_get_feature_value(uint8_t * buf, uint16_t buflen,
++				 struct dwc_otg_pcd *pcd,
++				 struct cfi_usb_ctrlrequest *ctrl_req)
++{
++	int retval = -DWC_E_NOT_SUPPORTED;
++	struct dwc_otg_core_if *coreif = GET_CORE_IF(pcd);
++	uint16_t dfifo, rxfifo, txfifo;
++
++	switch (ctrl_req->wIndex) {
++		/* Whether the DDMA is enabled or not */
++	case FT_ID_DMA_MODE:
++		*buf = (coreif->dma_enable && coreif->dma_desc_enable) ? 1 : 0;
++		retval = 1;
++		break;
++
++	case FT_ID_DMA_BUFFER_SETUP:
++		retval = cfi_ep_get_sg_val(buf, pcd, ctrl_req);
++		break;
++
++	case FT_ID_DMA_BUFF_ALIGN:
++		retval = cfi_ep_get_align_val(buf, pcd, ctrl_req);
++		break;
++
++	case FT_ID_DMA_CONCAT_SETUP:
++		retval = cfi_ep_get_concat_val(buf, pcd, ctrl_req);
++		break;
++
++	case FT_ID_DMA_CIRCULAR:
++		CFI_INFO("GetFeature value (FT_ID_DMA_CIRCULAR)\n");
++		break;
++
++	case FT_ID_THRESHOLD_SETUP:
++		CFI_INFO("GetFeature value (FT_ID_THRESHOLD_SETUP)\n");
++		break;
++
++	case FT_ID_DFIFO_DEPTH:
++		dfifo = get_dfifo_size(coreif);
++		*((uint16_t *) buf) = dfifo;
++		retval = sizeof(uint16_t);
++		break;
++
++	case FT_ID_TX_FIFO_DEPTH:
++		retval = get_txfifo_size(pcd, ctrl_req->wValue);
++		if (retval >= 0) {
++			txfifo = retval;
++			*((uint16_t *) buf) = txfifo;
++			retval = sizeof(uint16_t);
++		}
++		break;
++
++	case FT_ID_RX_FIFO_DEPTH:
++		retval = get_rxfifo_size(coreif, ctrl_req->wValue);
++		if (retval >= 0) {
++			rxfifo = retval;
++			*((uint16_t *) buf) = rxfifo;
++			retval = sizeof(uint16_t);
++		}
++		break;
++	}
++
++	return retval;
++}
++
++/**
++ * This function resets the SG for the specified EP to its default value
++ */
++static int cfi_reset_sg_val(cfi_ep_t * cfiep)
++{
++	dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t));
++	return 0;
++}
++
++/**
++ * This function resets the Alignment for the specified EP to its default value
++ */
++static int cfi_reset_align_val(cfi_ep_t * cfiep)
++{
++	dwc_memset(cfiep->bm_sg, 0, sizeof(ddma_sg_buffer_setup_t));
++	return 0;
++}
++
++/**
++ * This function resets the Concatenation for the specified EP to its default value
++ * This function will also set the value of the wTxBytes field to NULL after
++ * freeing the memory previously allocated for this field.
++ */
++static int cfi_reset_concat_val(cfi_ep_t * cfiep)
++{
++	/* First we need to free the wTxBytes field */
++	if (cfiep->bm_concat->wTxBytes) {
++		DWC_FREE(cfiep->bm_concat->wTxBytes);
++		cfiep->bm_concat->wTxBytes = NULL;
++	}
++
++	dwc_memset(cfiep->bm_concat, 0, sizeof(ddma_concat_buffer_setup_t));
++	return 0;
++}
++
++/**
++ * This function resets all the buffer setups of the specified endpoint
++ */
++static int cfi_ep_reset_all_setup_vals(cfi_ep_t * cfiep)
++{
++	cfi_reset_sg_val(cfiep);
++	cfi_reset_align_val(cfiep);
++	cfi_reset_concat_val(cfiep);
++	return 0;
++}
++
++static int cfi_handle_reset_fifo_val(struct dwc_otg_pcd *pcd, uint8_t ep_addr,
++				     uint8_t rx_rst, uint8_t tx_rst)
++{
++	int retval = -DWC_E_INVALID;
++	uint16_t tx_siz[15];
++	uint16_t rx_siz = 0;
++	dwc_otg_pcd_ep_t *ep = NULL;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params;
++
++	if (rx_rst) {
++		rx_siz = params->dev_rx_fifo_size;
++		params->dev_rx_fifo_size = GET_CORE_IF(pcd)->init_rxfsiz;
++	}
++
++	if (tx_rst) {
++		if (ep_addr == 0) {
++			int i;
++
++			for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++				tx_siz[i] =
++				    core_if->core_params->dev_tx_fifo_size[i];
++				core_if->core_params->dev_tx_fifo_size[i] =
++				    core_if->init_txfsiz[i];
++			}
++		} else {
++
++			ep = get_ep_by_addr(pcd, ep_addr);
++
++			if (NULL == ep) {
++				CFI_INFO
++				    ("%s: Unable to get the endpoint addr=0x%02x\n",
++				     __func__, ep_addr);
++				return -DWC_E_INVALID;
++			}
++
++			tx_siz[0] =
++			    params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num -
++						     1];
++			params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] =
++			    GET_CORE_IF(pcd)->init_txfsiz[ep->
++							  dwc_ep.tx_fifo_num -
++							  1];
++		}
++	}
++
++	if (resize_fifos(GET_CORE_IF(pcd))) {
++		retval = 0;
++	} else {
++		CFI_INFO
++		    ("%s: Error resetting the feature Reset All(FIFO size)\n",
++		     __func__);
++		if (rx_rst) {
++			params->dev_rx_fifo_size = rx_siz;
++		}
++
++		if (tx_rst) {
++			if (ep_addr == 0) {
++				int i;
++				for (i = 0; i < core_if->hwcfg4.b.num_in_eps;
++				     i++) {
++					core_if->
++					    core_params->dev_tx_fifo_size[i] =
++					    tx_siz[i];
++				}
++			} else {
++				params->dev_tx_fifo_size[ep->
++							 dwc_ep.tx_fifo_num -
++							 1] = tx_siz[0];
++			}
++		}
++		retval = -DWC_E_INVALID;
++	}
++	return retval;
++}
++
++static int cfi_handle_reset_all(struct dwc_otg_pcd *pcd, uint8_t addr)
++{
++	int retval = 0;
++	cfi_ep_t *cfiep;
++	cfiobject_t *cfi = pcd->cfi;
++	dwc_list_link_t *tmp;
++
++	retval = cfi_handle_reset_fifo_val(pcd, addr, 1, 1);
++	if (retval < 0) {
++		return retval;
++	}
++
++	/* If the EP address is known then reset the features for only that EP */
++	if (addr) {
++		cfiep = get_cfi_ep_by_addr(pcd->cfi, addr);
++		if (NULL == cfiep) {
++			CFI_INFO("%s: Error getting the EP address 0x%02x\n",
++				 __func__, addr);
++			return -DWC_E_INVALID;
++		}
++		retval = cfi_ep_reset_all_setup_vals(cfiep);
++		cfiep->ep->dwc_ep.buff_mode = BM_STANDARD;
++	}
++	/* Otherwise (wValue == 0), reset all features of all EP's */
++	else {
++		/* Traverse all the active EP's and reset the feature(s) value(s) */
++		//list_for_each_entry(cfiep, &cfi->active_eps, lh) {
++		DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++			cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++			retval = cfi_ep_reset_all_setup_vals(cfiep);
++			cfiep->ep->dwc_ep.buff_mode = BM_STANDARD;
++			if (retval < 0) {
++				CFI_INFO
++				    ("%s: Error resetting the feature Reset All\n",
++				     __func__);
++				return retval;
++			}
++		}
++	}
++	return retval;
++}
++
++static int cfi_handle_reset_dma_buff_setup(struct dwc_otg_pcd *pcd,
++					   uint8_t addr)
++{
++	int retval = 0;
++	cfi_ep_t *cfiep;
++	cfiobject_t *cfi = pcd->cfi;
++	dwc_list_link_t *tmp;
++
++	/* If the EP address is known then reset the features for only that EP */
++	if (addr) {
++		cfiep = get_cfi_ep_by_addr(pcd->cfi, addr);
++		if (NULL == cfiep) {
++			CFI_INFO("%s: Error getting the EP address 0x%02x\n",
++				 __func__, addr);
++			return -DWC_E_INVALID;
++		}
++		retval = cfi_reset_sg_val(cfiep);
++	}
++	/* Otherwise (wValue == 0), reset all features of all EP's */
++	else {
++		/* Traverse all the active EP's and reset the feature(s) value(s) */
++		//list_for_each_entry(cfiep, &cfi->active_eps, lh) {
++		DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++			cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++			retval = cfi_reset_sg_val(cfiep);
++			if (retval < 0) {
++				CFI_INFO
++				    ("%s: Error resetting the feature Buffer Setup\n",
++				     __func__);
++				return retval;
++			}
++		}
++	}
++	return retval;
++}
++
++static int cfi_handle_reset_concat_val(struct dwc_otg_pcd *pcd, uint8_t addr)
++{
++	int retval = 0;
++	cfi_ep_t *cfiep;
++	cfiobject_t *cfi = pcd->cfi;
++	dwc_list_link_t *tmp;
++
++	/* If the EP address is known then reset the features for only that EP */
++	if (addr) {
++		cfiep = get_cfi_ep_by_addr(pcd->cfi, addr);
++		if (NULL == cfiep) {
++			CFI_INFO("%s: Error getting the EP address 0x%02x\n",
++				 __func__, addr);
++			return -DWC_E_INVALID;
++		}
++		retval = cfi_reset_concat_val(cfiep);
++	}
++	/* Otherwise (wValue == 0), reset all features of all EP's */
++	else {
++		/* Traverse all the active EP's and reset the feature(s) value(s) */
++		//list_for_each_entry(cfiep, &cfi->active_eps, lh) {
++		DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++			cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++			retval = cfi_reset_concat_val(cfiep);
++			if (retval < 0) {
++				CFI_INFO
++				    ("%s: Error resetting the feature Concatenation Value\n",
++				     __func__);
++				return retval;
++			}
++		}
++	}
++	return retval;
++}
++
++static int cfi_handle_reset_align_val(struct dwc_otg_pcd *pcd, uint8_t addr)
++{
++	int retval = 0;
++	cfi_ep_t *cfiep;
++	cfiobject_t *cfi = pcd->cfi;
++	dwc_list_link_t *tmp;
++
++	/* If the EP address is known then reset the features for only that EP */
++	if (addr) {
++		cfiep = get_cfi_ep_by_addr(pcd->cfi, addr);
++		if (NULL == cfiep) {
++			CFI_INFO("%s: Error getting the EP address 0x%02x\n",
++				 __func__, addr);
++			return -DWC_E_INVALID;
++		}
++		retval = cfi_reset_align_val(cfiep);
++	}
++	/* Otherwise (wValue == 0), reset all features of all EP's */
++	else {
++		/* Traverse all the active EP's and reset the feature(s) value(s) */
++		//list_for_each_entry(cfiep, &cfi->active_eps, lh) {
++		DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++			cfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++			retval = cfi_reset_align_val(cfiep);
++			if (retval < 0) {
++				CFI_INFO
++				    ("%s: Error resetting the feature Aliignment Value\n",
++				     __func__);
++				return retval;
++			}
++		}
++	}
++	return retval;
++
++}
++
++static int cfi_preproc_reset(struct dwc_otg_pcd *pcd,
++			     struct cfi_usb_ctrlrequest *req)
++{
++	int retval = 0;
++
++	switch (req->wIndex) {
++	case 0:
++		/* Reset all features */
++		retval = cfi_handle_reset_all(pcd, req->wValue & 0xff);
++		break;
++
++	case FT_ID_DMA_BUFFER_SETUP:
++		/* Reset the SG buffer setup */
++		retval =
++		    cfi_handle_reset_dma_buff_setup(pcd, req->wValue & 0xff);
++		break;
++
++	case FT_ID_DMA_CONCAT_SETUP:
++		/* Reset the Concatenation buffer setup */
++		retval = cfi_handle_reset_concat_val(pcd, req->wValue & 0xff);
++		break;
++
++	case FT_ID_DMA_BUFF_ALIGN:
++		/* Reset the Alignment buffer setup */
++		retval = cfi_handle_reset_align_val(pcd, req->wValue & 0xff);
++		break;
++
++	case FT_ID_TX_FIFO_DEPTH:
++		retval =
++		    cfi_handle_reset_fifo_val(pcd, req->wValue & 0xff, 0, 1);
++		pcd->cfi->need_gadget_att = 0;
++		break;
++
++	case FT_ID_RX_FIFO_DEPTH:
++		retval = cfi_handle_reset_fifo_val(pcd, 0, 1, 0);
++		pcd->cfi->need_gadget_att = 0;
++		break;
++	default:
++		break;
++	}
++	return retval;
++}
++
++/**
++ * This function sets a new value for the SG buffer setup.
++ */
++static int cfi_ep_set_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd)
++{
++	uint8_t inaddr, outaddr;
++	cfi_ep_t *epin, *epout;
++	ddma_sg_buffer_setup_t *psgval;
++	uint32_t desccount, size;
++
++	CFI_INFO("%s\n", __func__);
++
++	psgval = (ddma_sg_buffer_setup_t *) buf;
++	desccount = (uint32_t) psgval->bCount;
++	size = (uint32_t) psgval->wSize;
++
++	/* Check the DMA descriptor count */
++	if ((desccount > MAX_DMA_DESCS_PER_EP) || (desccount == 0)) {
++		CFI_INFO
++		    ("%s: The count of DMA Descriptors should be between 1 and %d\n",
++		     __func__, MAX_DMA_DESCS_PER_EP);
++		return -DWC_E_INVALID;
++	}
++
++	/* Check the DMA descriptor count */
++
++	if (size == 0) {
++
++		CFI_INFO("%s: The transfer size should be at least 1 byte\n",
++			 __func__);
++
++		return -DWC_E_INVALID;
++
++	}
++
++	inaddr = psgval->bInEndpointAddress;
++	outaddr = psgval->bOutEndpointAddress;
++
++	epin = get_cfi_ep_by_addr(pcd->cfi, inaddr);
++	epout = get_cfi_ep_by_addr(pcd->cfi, outaddr);
++
++	if (NULL == epin || NULL == epout) {
++		CFI_INFO
++		    ("%s: Unable to get the endpoints inaddr=0x%02x outaddr=0x%02x\n",
++		     __func__, inaddr, outaddr);
++		return -DWC_E_INVALID;
++	}
++
++	epin->ep->dwc_ep.buff_mode = BM_SG;
++	dwc_memcpy(epin->bm_sg, psgval, sizeof(ddma_sg_buffer_setup_t));
++
++	epout->ep->dwc_ep.buff_mode = BM_SG;
++	dwc_memcpy(epout->bm_sg, psgval, sizeof(ddma_sg_buffer_setup_t));
++
++	return 0;
++}
++
++/**
++ * This function sets a new value for the buffer Alignment setup.
++ */
++static int cfi_ep_set_alignment_val(uint8_t * buf, struct dwc_otg_pcd *pcd)
++{
++	cfi_ep_t *ep;
++	uint8_t addr;
++	ddma_align_buffer_setup_t *palignval;
++
++	palignval = (ddma_align_buffer_setup_t *) buf;
++	addr = palignval->bEndpointAddress;
++
++	ep = get_cfi_ep_by_addr(pcd->cfi, addr);
++
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n",
++			 __func__, addr);
++		return -DWC_E_INVALID;
++	}
++
++	ep->ep->dwc_ep.buff_mode = BM_ALIGN;
++	dwc_memcpy(ep->bm_align, palignval, sizeof(ddma_align_buffer_setup_t));
++
++	return 0;
++}
++
++/**
++ * This function sets a new value for the Concatenation buffer setup.
++ */
++static int cfi_ep_set_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd)
++{
++	uint8_t addr;
++	cfi_ep_t *ep;
++	struct _ddma_concat_buffer_setup_hdr *pConcatValHdr;
++	uint16_t *pVals;
++	uint32_t desccount;
++	int i;
++	uint16_t mps;
++
++	pConcatValHdr = (struct _ddma_concat_buffer_setup_hdr *)buf;
++	desccount = (uint32_t) pConcatValHdr->bDescCount;
++	pVals = (uint16_t *) (buf + BS_CONCAT_VAL_HDR_LEN);
++
++	/* Check the DMA descriptor count */
++	if (desccount > MAX_DMA_DESCS_PER_EP) {
++		CFI_INFO("%s: Maximum DMA Descriptor count should be %d\n",
++			 __func__, MAX_DMA_DESCS_PER_EP);
++		return -DWC_E_INVALID;
++	}
++
++	addr = pConcatValHdr->bEndpointAddress;
++	ep = get_cfi_ep_by_addr(pcd->cfi, addr);
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n",
++			 __func__, addr);
++		return -DWC_E_INVALID;
++	}
++
++	mps = UGETW(ep->ep->desc->wMaxPacketSize);
++
++#if 0
++	for (i = 0; i < desccount; i++) {
++		CFI_INFO("%s: wTxSize[%d]=0x%04x\n", __func__, i, pVals[i]);
++	}
++	CFI_INFO("%s: epname=%s; mps=%d\n", __func__, ep->ep->ep.name, mps);
++#endif
++
++	/* Check the wTxSizes to be less than or equal to the mps */
++	for (i = 0; i < desccount; i++) {
++		if (pVals[i] > mps) {
++			CFI_INFO
++			    ("%s: ERROR - the wTxSize[%d] should be <= MPS (wTxSize=%d)\n",
++			     __func__, i, pVals[i]);
++			return -DWC_E_INVALID;
++		}
++	}
++
++	ep->ep->dwc_ep.buff_mode = BM_CONCAT;
++	dwc_memcpy(ep->bm_concat, pConcatValHdr, BS_CONCAT_VAL_HDR_LEN);
++
++	/* Free the previously allocated storage for the wTxBytes */
++	if (ep->bm_concat->wTxBytes) {
++		DWC_FREE(ep->bm_concat->wTxBytes);
++	}
++
++	/* Allocate a new storage for the wTxBytes field */
++	ep->bm_concat->wTxBytes =
++	    DWC_ALLOC(sizeof(uint16_t) * pConcatValHdr->bDescCount);
++	if (NULL == ep->bm_concat->wTxBytes) {
++		CFI_INFO("%s: Unable to allocate memory\n", __func__);
++		return -DWC_E_NO_MEMORY;
++	}
++
++	/* Copy the new values into the wTxBytes filed */
++	dwc_memcpy(ep->bm_concat->wTxBytes, buf + BS_CONCAT_VAL_HDR_LEN,
++		   sizeof(uint16_t) * pConcatValHdr->bDescCount);
++
++	return 0;
++}
++
++/**
++ * This function calculates the total of all FIFO sizes
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ * @return The total of data FIFO sizes.
++ *
++ */
++static uint16_t get_dfifo_size(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_params_t *params = core_if->core_params;
++	uint16_t dfifo_total = 0;
++	int i;
++
++	/* The shared RxFIFO size */
++	dfifo_total =
++	    params->dev_rx_fifo_size + params->dev_nperio_tx_fifo_size;
++
++	/* Add up each TxFIFO size to the total */
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++		dfifo_total += params->dev_tx_fifo_size[i];
++	}
++
++	return dfifo_total;
++}
++
++/**
++ * This function returns Rx FIFO size
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ * @return The total of data FIFO sizes.
++ *
++ */
++static int32_t get_rxfifo_size(dwc_otg_core_if_t * core_if, uint16_t wValue)
++{
++	switch (wValue >> 8) {
++	case 0:
++		return (core_if->pwron_rxfsiz <
++			32768) ? core_if->pwron_rxfsiz : 32768;
++		break;
++	case 1:
++		return core_if->core_params->dev_rx_fifo_size;
++		break;
++	default:
++		return -DWC_E_INVALID;
++		break;
++	}
++}
++
++/**
++ * This function returns Tx FIFO size for IN EP
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ * @return The total of data FIFO sizes.
++ *
++ */
++static int32_t get_txfifo_size(struct dwc_otg_pcd *pcd, uint16_t wValue)
++{
++	dwc_otg_pcd_ep_t *ep;
++
++	ep = get_ep_by_addr(pcd, wValue & 0xff);
++
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n",
++			 __func__, wValue & 0xff);
++		return -DWC_E_INVALID;
++	}
++
++	if (!ep->dwc_ep.is_in) {
++		CFI_INFO
++		    ("%s: No Tx FIFO assingned to the Out endpoint addr=0x%02x\n",
++		     __func__, wValue & 0xff);
++		return -DWC_E_INVALID;
++	}
++
++	switch (wValue >> 8) {
++	case 0:
++		return (GET_CORE_IF(pcd)->pwron_txfsiz
++			[ep->dwc_ep.tx_fifo_num - 1] <
++			768) ? GET_CORE_IF(pcd)->pwron_txfsiz[ep->
++							      dwc_ep.tx_fifo_num
++							      - 1] : 32768;
++		break;
++	case 1:
++		return GET_CORE_IF(pcd)->core_params->
++		    dev_tx_fifo_size[ep->dwc_ep.num - 1];
++		break;
++	default:
++		return -DWC_E_INVALID;
++		break;
++	}
++}
++
++/**
++ * This function checks if the submitted combination of
++ * device mode FIFO sizes is possible or not.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ * @return 1 if possible, 0 otherwise.
++ *
++ */
++static uint8_t check_fifo_sizes(dwc_otg_core_if_t * core_if)
++{
++	uint16_t dfifo_actual = 0;
++	dwc_otg_core_params_t *params = core_if->core_params;
++	uint16_t start_addr = 0;
++	int i;
++
++	dfifo_actual =
++	    params->dev_rx_fifo_size + params->dev_nperio_tx_fifo_size;
++
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++		dfifo_actual += params->dev_tx_fifo_size[i];
++	}
++
++	if (dfifo_actual > core_if->total_fifo_size) {
++		return 0;
++	}
++
++	if (params->dev_rx_fifo_size > 32768 || params->dev_rx_fifo_size < 16)
++		return 0;
++
++	if (params->dev_nperio_tx_fifo_size > 32768
++	    || params->dev_nperio_tx_fifo_size < 16)
++		return 0;
++
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++
++		if (params->dev_tx_fifo_size[i] > 768
++		    || params->dev_tx_fifo_size[i] < 4)
++			return 0;
++	}
++
++	if (params->dev_rx_fifo_size > core_if->pwron_rxfsiz)
++		return 0;
++	start_addr = params->dev_rx_fifo_size;
++
++	if (params->dev_nperio_tx_fifo_size > core_if->pwron_gnptxfsiz)
++		return 0;
++	start_addr += params->dev_nperio_tx_fifo_size;
++
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++
++		if (params->dev_tx_fifo_size[i] > core_if->pwron_txfsiz[i])
++			return 0;
++		start_addr += params->dev_tx_fifo_size[i];
++	}
++
++	return 1;
++}
++
++/**
++ * This function resizes Device mode FIFOs
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ * @return 1 if successful, 0 otherwise
++ *
++ */
++static uint8_t resize_fifos(dwc_otg_core_if_t * core_if)
++{
++	int i = 0;
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	dwc_otg_core_params_t *params = core_if->core_params;
++	uint32_t rx_fifo_size;
++	fifosize_data_t nptxfifosize;
++	fifosize_data_t txfifosize[15];
++
++	uint32_t rx_fsz_bak;
++	uint32_t nptxfsz_bak;
++	uint32_t txfsz_bak[15];
++
++	uint16_t start_address;
++	uint8_t retval = 1;
++
++	if (!check_fifo_sizes(core_if)) {
++		return 0;
++	}
++
++	/* Configure data FIFO sizes */
++	if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) {
++		rx_fsz_bak = DWC_READ_REG32(&global_regs->grxfsiz);
++		rx_fifo_size = params->dev_rx_fifo_size;
++		DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fifo_size);
++
++		/*
++		 * Tx FIFOs These FIFOs are numbered from 1 to 15.
++		 * Indexes of the FIFO size module parameters in the
++		 * dev_tx_fifo_size array and the FIFO size registers in
++		 * the dtxfsiz array run from 0 to 14.
++		 */
++
++		/* Non-periodic Tx FIFO */
++		nptxfsz_bak = DWC_READ_REG32(&global_regs->gnptxfsiz);
++		nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size;
++		start_address = params->dev_rx_fifo_size;
++		nptxfifosize.b.startaddr = start_address;
++
++		DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfifosize.d32);
++
++		start_address += nptxfifosize.b.depth;
++
++		for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++			txfsz_bak[i] = DWC_READ_REG32(&global_regs->dtxfsiz[i]);
++
++			txfifosize[i].b.depth = params->dev_tx_fifo_size[i];
++			txfifosize[i].b.startaddr = start_address;
++			DWC_WRITE_REG32(&global_regs->dtxfsiz[i],
++					txfifosize[i].d32);
++
++			start_address += txfifosize[i].b.depth;
++		}
++
++		/** Check if register values are set correctly */
++		if (rx_fifo_size != DWC_READ_REG32(&global_regs->grxfsiz)) {
++			retval = 0;
++		}
++
++		if (nptxfifosize.d32 != DWC_READ_REG32(&global_regs->gnptxfsiz)) {
++			retval = 0;
++		}
++
++		for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++			if (txfifosize[i].d32 !=
++			    DWC_READ_REG32(&global_regs->dtxfsiz[i])) {
++				retval = 0;
++			}
++		}
++
++		/** If register values are not set correctly, reset old values */
++		if (retval == 0) {
++			DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fsz_bak);
++
++			/* Non-periodic Tx FIFO */
++			DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfsz_bak);
++
++			for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++				DWC_WRITE_REG32(&global_regs->dtxfsiz[i],
++						txfsz_bak[i]);
++			}
++		}
++	} else {
++		return 0;
++	}
++
++	/* Flush the FIFOs */
++	dwc_otg_flush_tx_fifo(core_if, 0x10);	/* all Tx FIFOs */
++	dwc_otg_flush_rx_fifo(core_if);
++
++	return retval;
++}
++
++/**
++ * This function sets a new value for the buffer Alignment setup.
++ */
++static int cfi_ep_set_tx_fifo_val(uint8_t * buf, dwc_otg_pcd_t * pcd)
++{
++	int retval;
++	uint32_t fsiz;
++	uint16_t size;
++	uint16_t ep_addr;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params;
++	tx_fifo_size_setup_t *ptxfifoval;
++
++	ptxfifoval = (tx_fifo_size_setup_t *) buf;
++	ep_addr = ptxfifoval->bEndpointAddress;
++	size = ptxfifoval->wDepth;
++
++	ep = get_ep_by_addr(pcd, ep_addr);
++
++	CFI_INFO
++	    ("%s: Set Tx FIFO size: endpoint addr=0x%02x, depth=%d, FIFO Num=%d\n",
++	     __func__, ep_addr, size, ep->dwc_ep.tx_fifo_num);
++
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint addr=0x%02x\n",
++			 __func__, ep_addr);
++		return -DWC_E_INVALID;
++	}
++
++	fsiz = params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1];
++	params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] = size;
++
++	if (resize_fifos(GET_CORE_IF(pcd))) {
++		retval = 0;
++	} else {
++		CFI_INFO
++		    ("%s: Error setting the feature Tx FIFO Size for EP%d\n",
++		     __func__, ep_addr);
++		params->dev_tx_fifo_size[ep->dwc_ep.tx_fifo_num - 1] = fsiz;
++		retval = -DWC_E_INVALID;
++	}
++
++	return retval;
++}
++
++/**
++ * This function sets a new value for the buffer Alignment setup.
++ */
++static int cfi_set_rx_fifo_val(uint8_t * buf, dwc_otg_pcd_t * pcd)
++{
++	int retval;
++	uint32_t fsiz;
++	uint16_t size;
++	dwc_otg_core_params_t *params = GET_CORE_IF(pcd)->core_params;
++	rx_fifo_size_setup_t *prxfifoval;
++
++	prxfifoval = (rx_fifo_size_setup_t *) buf;
++	size = prxfifoval->wDepth;
++
++	fsiz = params->dev_rx_fifo_size;
++	params->dev_rx_fifo_size = size;
++
++	if (resize_fifos(GET_CORE_IF(pcd))) {
++		retval = 0;
++	} else {
++		CFI_INFO("%s: Error setting the feature Rx FIFO Size\n",
++			 __func__);
++		params->dev_rx_fifo_size = fsiz;
++		retval = -DWC_E_INVALID;
++	}
++
++	return retval;
++}
++
++/**
++ * This function reads the SG of an EP's buffer setup into the buffer buf
++ */
++static int cfi_ep_get_sg_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++			     struct cfi_usb_ctrlrequest *req)
++{
++	int retval = -DWC_E_INVALID;
++	uint8_t addr;
++	cfi_ep_t *ep;
++
++	/* The Low Byte of the wValue contains a non-zero address of the endpoint */
++	addr = req->wValue & 0xFF;
++	if (addr == 0)		/* The address should be non-zero */
++		return retval;
++
++	ep = get_cfi_ep_by_addr(pcd->cfi, addr);
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n",
++			 __func__, addr);
++		return retval;
++	}
++
++	dwc_memcpy(buf, ep->bm_sg, BS_SG_VAL_DESC_LEN);
++	retval = BS_SG_VAL_DESC_LEN;
++	return retval;
++}
++
++/**
++ * This function reads the Concatenation value of an EP's buffer mode into
++ * the buffer buf
++ */
++static int cfi_ep_get_concat_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++				 struct cfi_usb_ctrlrequest *req)
++{
++	int retval = -DWC_E_INVALID;
++	uint8_t addr;
++	cfi_ep_t *ep;
++	uint8_t desc_count;
++
++	/* The Low Byte of the wValue contains a non-zero address of the endpoint */
++	addr = req->wValue & 0xFF;
++	if (addr == 0)		/* The address should be non-zero */
++		return retval;
++
++	ep = get_cfi_ep_by_addr(pcd->cfi, addr);
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n",
++			 __func__, addr);
++		return retval;
++	}
++
++	/* Copy the header to the buffer */
++	dwc_memcpy(buf, ep->bm_concat, BS_CONCAT_VAL_HDR_LEN);
++	/* Advance the buffer pointer by the header size */
++	buf += BS_CONCAT_VAL_HDR_LEN;
++
++	desc_count = ep->bm_concat->hdr.bDescCount;
++	/* Copy alll the wTxBytes to the buffer */
++	dwc_memcpy(buf, ep->bm_concat->wTxBytes, sizeof(uid16_t) * desc_count);
++
++	retval = BS_CONCAT_VAL_HDR_LEN + sizeof(uid16_t) * desc_count;
++	return retval;
++}
++
++/**
++ * This function reads the buffer Alignment value of an EP's buffer mode into
++ * the buffer buf
++ *
++ * @return The total number of bytes copied to the buffer or negative error code.
++ */
++static int cfi_ep_get_align_val(uint8_t * buf, struct dwc_otg_pcd *pcd,
++				struct cfi_usb_ctrlrequest *req)
++{
++	int retval = -DWC_E_INVALID;
++	uint8_t addr;
++	cfi_ep_t *ep;
++
++	/* The Low Byte of the wValue contains a non-zero address of the endpoint */
++	addr = req->wValue & 0xFF;
++	if (addr == 0)		/* The address should be non-zero */
++		return retval;
++
++	ep = get_cfi_ep_by_addr(pcd->cfi, addr);
++	if (NULL == ep) {
++		CFI_INFO("%s: Unable to get the endpoint address(0x%02x)\n",
++			 __func__, addr);
++		return retval;
++	}
++
++	dwc_memcpy(buf, ep->bm_align, BS_ALIGN_VAL_HDR_LEN);
++	retval = BS_ALIGN_VAL_HDR_LEN;
++
++	return retval;
++}
++
++/**
++ * This function sets a new value for the specified feature
++ *
++ * @param	pcd	A pointer to the PCD object
++ *
++ * @return 0 if successful, negative error code otherwise to stall the DCE.
++ */
++static int cfi_set_feature_value(struct dwc_otg_pcd *pcd)
++{
++	int retval = -DWC_E_NOT_SUPPORTED;
++	uint16_t wIndex, wValue;
++	uint8_t bRequest;
++	struct dwc_otg_core_if *coreif;
++	cfiobject_t *cfi = pcd->cfi;
++	struct cfi_usb_ctrlrequest *ctrl_req;
++	uint8_t *buf;
++	ctrl_req = &cfi->ctrl_req;
++
++	buf = pcd->cfi->ctrl_req.data;
++
++	coreif = GET_CORE_IF(pcd);
++	bRequest = ctrl_req->bRequest;
++	wIndex = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wIndex);
++	wValue = DWC_CONSTANT_CPU_TO_LE16(ctrl_req->wValue);
++
++	/* See which feature is to be modified */
++	switch (wIndex) {
++	case FT_ID_DMA_BUFFER_SETUP:
++		/* Modify the feature */
++		if ((retval = cfi_ep_set_sg_val(buf, pcd)) < 0)
++			return retval;
++
++		/* And send this request to the gadget */
++		cfi->need_gadget_att = 1;
++		break;
++
++	case FT_ID_DMA_BUFF_ALIGN:
++		if ((retval = cfi_ep_set_alignment_val(buf, pcd)) < 0)
++			return retval;
++		cfi->need_gadget_att = 1;
++		break;
++
++	case FT_ID_DMA_CONCAT_SETUP:
++		/* Modify the feature */
++		if ((retval = cfi_ep_set_concat_val(buf, pcd)) < 0)
++			return retval;
++		cfi->need_gadget_att = 1;
++		break;
++
++	case FT_ID_DMA_CIRCULAR:
++		CFI_INFO("FT_ID_DMA_CIRCULAR\n");
++		break;
++
++	case FT_ID_THRESHOLD_SETUP:
++		CFI_INFO("FT_ID_THRESHOLD_SETUP\n");
++		break;
++
++	case FT_ID_DFIFO_DEPTH:
++		CFI_INFO("FT_ID_DFIFO_DEPTH\n");
++		break;
++
++	case FT_ID_TX_FIFO_DEPTH:
++		CFI_INFO("FT_ID_TX_FIFO_DEPTH\n");
++		if ((retval = cfi_ep_set_tx_fifo_val(buf, pcd)) < 0)
++			return retval;
++		cfi->need_gadget_att = 0;
++		break;
++
++	case FT_ID_RX_FIFO_DEPTH:
++		CFI_INFO("FT_ID_RX_FIFO_DEPTH\n");
++		if ((retval = cfi_set_rx_fifo_val(buf, pcd)) < 0)
++			return retval;
++		cfi->need_gadget_att = 0;
++		break;
++	}
++
++	return retval;
++}
++
++#endif //DWC_UTE_CFI
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cfi.h
+@@ -0,0 +1,320 @@
++/* ==========================================================================
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#if !defined(__DWC_OTG_CFI_H__)
++#define __DWC_OTG_CFI_H__
++
++#include "dwc_otg_pcd.h"
++#include "dwc_cfi_common.h"
++
++/**
++ * @file
++ * This file contains the CFI related OTG PCD specific common constants,
++ * interfaces(functions and macros) and data structures.The CFI Protocol is an
++ * optional interface for internal testing purposes that a DUT may implement to
++ * support testing of configurable features.
++ *
++ */
++
++struct dwc_otg_pcd;
++struct dwc_otg_pcd_ep;
++
++/** OTG CFI Features (properties) ID constants */
++/** This is a request for all Core Features */
++#define FT_ID_DMA_MODE					0x0001
++#define FT_ID_DMA_BUFFER_SETUP			0x0002
++#define FT_ID_DMA_BUFF_ALIGN			0x0003
++#define FT_ID_DMA_CONCAT_SETUP			0x0004
++#define FT_ID_DMA_CIRCULAR				0x0005
++#define FT_ID_THRESHOLD_SETUP			0x0006
++#define FT_ID_DFIFO_DEPTH				0x0007
++#define FT_ID_TX_FIFO_DEPTH				0x0008
++#define FT_ID_RX_FIFO_DEPTH				0x0009
++
++/**********************************************************/
++#define CFI_INFO_DEF
++
++#ifdef CFI_INFO_DEF
++#define CFI_INFO(fmt...)	DWC_PRINTF("CFI: " fmt);
++#else
++#define CFI_INFO(fmt...)
++#endif
++
++#define min(x,y) ({ \
++	x < y ? x : y; })
++
++#define max(x,y) ({ \
++	x > y ? x : y; })
++
++/**
++ * Descriptor DMA SG Buffer setup structure (SG buffer). This structure is
++ * also used for setting up a buffer for Circular DDMA.
++ */
++struct _ddma_sg_buffer_setup {
++#define BS_SG_VAL_DESC_LEN	6
++	/* The OUT EP address */
++	uint8_t bOutEndpointAddress;
++	/* The IN EP address */
++	uint8_t bInEndpointAddress;
++	/* Number of bytes to put between transfer segments (must be DWORD boundaries) */
++	uint8_t bOffset;
++	/* The number of transfer segments (a DMA descriptors per each segment) */
++	uint8_t bCount;
++	/* Size (in byte) of each transfer segment */
++	uint16_t wSize;
++} __attribute__ ((packed));
++typedef struct _ddma_sg_buffer_setup ddma_sg_buffer_setup_t;
++
++/** Descriptor DMA Concatenation Buffer setup structure */
++struct _ddma_concat_buffer_setup_hdr {
++#define BS_CONCAT_VAL_HDR_LEN	4
++	/* The endpoint for which the buffer is to be set up */
++	uint8_t bEndpointAddress;
++	/* The count of descriptors to be used */
++	uint8_t bDescCount;
++	/* The total size of the transfer */
++	uint16_t wSize;
++} __attribute__ ((packed));
++typedef struct _ddma_concat_buffer_setup_hdr ddma_concat_buffer_setup_hdr_t;
++
++/** Descriptor DMA Concatenation Buffer setup structure */
++struct _ddma_concat_buffer_setup {
++	/* The SG header */
++	ddma_concat_buffer_setup_hdr_t hdr;
++
++	/* The XFER sizes pointer (allocated dynamically) */
++	uint16_t *wTxBytes;
++} __attribute__ ((packed));
++typedef struct _ddma_concat_buffer_setup ddma_concat_buffer_setup_t;
++
++/** Descriptor DMA Alignment Buffer setup structure */
++struct _ddma_align_buffer_setup {
++#define BS_ALIGN_VAL_HDR_LEN	2
++	uint8_t bEndpointAddress;
++	uint8_t bAlign;
++} __attribute__ ((packed));
++typedef struct _ddma_align_buffer_setup ddma_align_buffer_setup_t;
++
++/** Transmit FIFO Size setup structure */
++struct _tx_fifo_size_setup {
++	uint8_t bEndpointAddress;
++	uint16_t wDepth;
++} __attribute__ ((packed));
++typedef struct _tx_fifo_size_setup tx_fifo_size_setup_t;
++
++/** Transmit FIFO Size setup structure */
++struct _rx_fifo_size_setup {
++	uint16_t wDepth;
++} __attribute__ ((packed));
++typedef struct _rx_fifo_size_setup rx_fifo_size_setup_t;
++
++/**
++ * struct cfi_usb_ctrlrequest - the CFI implementation of the struct usb_ctrlrequest
++ * This structure encapsulates the standard usb_ctrlrequest and adds a pointer
++ * to the data returned in the data stage of a 3-stage Control Write requests.
++ */
++struct cfi_usb_ctrlrequest {
++	uint8_t bRequestType;
++	uint8_t bRequest;
++	uint16_t wValue;
++	uint16_t wIndex;
++	uint16_t wLength;
++	uint8_t *data;
++} UPACKED;
++
++/*---------------------------------------------------------------------------*/
++
++/**
++ * The CFI wrapper of the enabled and activated dwc_otg_pcd_ep structures.
++ * This structure is used to store the buffer setup data for any
++ * enabled endpoint in the PCD.
++ */
++struct cfi_ep {
++	/* Entry for the list container */
++	dwc_list_link_t lh;
++	/* Pointer to the active PCD endpoint structure */
++	struct dwc_otg_pcd_ep *ep;
++	/* The last descriptor in the chain of DMA descriptors of the endpoint */
++	struct dwc_otg_dma_desc *dma_desc_last;
++	/* The SG feature value */
++	ddma_sg_buffer_setup_t *bm_sg;
++	/* The Circular feature value */
++	ddma_sg_buffer_setup_t *bm_circ;
++	/* The Concatenation feature value */
++	ddma_concat_buffer_setup_t *bm_concat;
++	/* The Alignment feature value */
++	ddma_align_buffer_setup_t *bm_align;
++	/* XFER length */
++	uint32_t xfer_len;
++	/*
++	 * Count of DMA descriptors currently used.
++	 * The total should not exceed the MAX_DMA_DESCS_PER_EP value
++	 * defined in the dwc_otg_cil.h
++	 */
++	uint32_t desc_count;
++};
++typedef struct cfi_ep cfi_ep_t;
++
++typedef struct cfi_dma_buff {
++#define CFI_IN_BUF_LEN	1024
++#define CFI_OUT_BUF_LEN	1024
++	dma_addr_t addr;
++	uint8_t *buf;
++} cfi_dma_buff_t;
++
++struct cfiobject;
++
++/**
++ * This is the interface for the CFI operations.
++ *
++ * @param	ep_enable			Called when any endpoint is enabled and activated.
++ * @param	release				Called when the CFI object is released and it needs to correctly
++ *								deallocate the dynamic memory
++ * @param	ctrl_write_complete	Called when the data stage of the request is complete
++ */
++typedef struct cfi_ops {
++	int (*ep_enable) (struct cfiobject * cfi, struct dwc_otg_pcd * pcd,
++			  struct dwc_otg_pcd_ep * ep);
++	void *(*ep_alloc_buf) (struct cfiobject * cfi, struct dwc_otg_pcd * pcd,
++			       struct dwc_otg_pcd_ep * ep, dma_addr_t * dma,
++			       unsigned size, gfp_t flags);
++	void (*release) (struct cfiobject * cfi);
++	int (*ctrl_write_complete) (struct cfiobject * cfi,
++				    struct dwc_otg_pcd * pcd);
++	void (*build_descriptors) (struct cfiobject * cfi,
++				   struct dwc_otg_pcd * pcd,
++				   struct dwc_otg_pcd_ep * ep,
++				   dwc_otg_pcd_request_t * req);
++} cfi_ops_t;
++
++struct cfiobject {
++	cfi_ops_t ops;
++	struct dwc_otg_pcd *pcd;
++	struct usb_gadget *gadget;
++
++	/* Buffers used to send/receive CFI-related request data */
++	cfi_dma_buff_t buf_in;
++	cfi_dma_buff_t buf_out;
++
++	/* CFI specific Control request wrapper */
++	struct cfi_usb_ctrlrequest ctrl_req;
++
++	/* The list of active EP's in the PCD of type cfi_ep_t */
++	dwc_list_link_t active_eps;
++
++	/* This flag shall control the propagation of a specific request
++	 * to the gadget's processing routines.
++	 * 0 - no gadget handling
++	 * 1 - the gadget needs to know about this request (w/o completing a status
++	 * phase - just return a 0 to the _setup callback)
++	 */
++	uint8_t need_gadget_att;
++
++	/* Flag indicating whether the status IN phase needs to be
++	 * completed by the PCD
++	 */
++	uint8_t need_status_in_complete;
++};
++typedef struct cfiobject cfiobject_t;
++
++#define DUMP_MSG
++
++#if defined(DUMP_MSG)
++static inline void dump_msg(const u8 * buf, unsigned int length)
++{
++	unsigned int start, num, i;
++	char line[52], *p;
++
++	if (length >= 512)
++		return;
++
++	start = 0;
++	while (length > 0) {
++		num = min(length, 16u);
++		p = line;
++		for (i = 0; i < num; ++i) {
++			if (i == 8)
++				*p++ = ' ';
++			DWC_SPRINTF(p, " %02x", buf[i]);
++			p += 3;
++		}
++		*p = 0;
++		DWC_DEBUG("%6x: %s\n", start, line);
++		buf += num;
++		start += num;
++		length -= num;
++	}
++}
++#else
++static inline void dump_msg(const u8 * buf, unsigned int length)
++{
++}
++#endif
++
++/**
++ * This function returns a pointer to cfi_ep_t object with the addr address.
++ */
++static inline struct cfi_ep *get_cfi_ep_by_addr(struct cfiobject *cfi,
++						uint8_t addr)
++{
++	struct cfi_ep *pcfiep;
++	dwc_list_link_t *tmp;
++
++	DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++		pcfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++
++		if (pcfiep->ep->desc->bEndpointAddress == addr) {
++			return pcfiep;
++		}
++	}
++
++	return NULL;
++}
++
++/**
++ * This function returns a pointer to cfi_ep_t object that matches
++ * the dwc_otg_pcd_ep object.
++ */
++static inline struct cfi_ep *get_cfi_ep_by_pcd_ep(struct cfiobject *cfi,
++						  struct dwc_otg_pcd_ep *ep)
++{
++	struct cfi_ep *pcfiep = NULL;
++	dwc_list_link_t *tmp;
++
++	DWC_LIST_FOREACH(tmp, &cfi->active_eps) {
++		pcfiep = DWC_LIST_ENTRY(tmp, struct cfi_ep, lh);
++		if (pcfiep->ep == ep) {
++			return pcfiep;
++		}
++	}
++	return NULL;
++}
++
++int cfi_setup(struct dwc_otg_pcd *pcd, struct cfi_usb_ctrlrequest *ctrl);
++
++#endif /* (__DWC_OTG_CFI_H__) */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cil.c
+@@ -0,0 +1,7146 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.c $
++ * $Revision: #191 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++/** @file
++ *
++ * The Core Interface Layer provides basic services for accessing and
++ * managing the DWC_otg hardware. These services are used by both the
++ * Host Controller Driver and the Peripheral Controller Driver.
++ *
++ * The CIL manages the memory map for the core so that the HCD and PCD
++ * don't have to do this separately. It also handles basic tasks like
++ * reading/writing the registers and data FIFOs in the controller.
++ * Some of the data access functions provide encapsulation of several
++ * operations required to perform a task, such as writing multiple
++ * registers to start a transfer. Finally, the CIL performs basic
++ * services that are not specific to either the host or device modes
++ * of operation. These services include management of the OTG Host
++ * Negotiation Protocol (HNP) and Session Request Protocol (SRP). A
++ * Diagnostic API is also provided to allow testing of the controller
++ * hardware.
++ *
++ * The Core Interface Layer has the following requirements:
++ * - Provides basic controller operations.
++ * - Minimal use of OS services.
++ * - The OS services used will be abstracted by using inline functions
++ *	 or macros.
++ *
++ */
++
++#include "dwc_os.h"
++#include "dwc_otg_regs.h"
++#include "dwc_otg_cil.h"
++
++extern bool cil_force_host;
++
++static int dwc_otg_setup_params(dwc_otg_core_if_t * core_if);
++
++/**
++ * This function is called to initialize the DWC_otg CSR data
++ * structures. The register addresses in the device and host
++ * structures are initialized from the base address supplied by the
++ * caller. The calling function must make the OS calls to get the
++ * base address of the DWC_otg controller registers. The core_params
++ * argument holds the parameters that specify how the core should be
++ * configured.
++ *
++ * @param reg_base_addr Base address of DWC_otg core registers
++ *
++ */
++dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t * reg_base_addr)
++{
++	dwc_otg_core_if_t *core_if = 0;
++	dwc_otg_dev_if_t *dev_if = 0;
++	dwc_otg_host_if_t *host_if = 0;
++	uint8_t *reg_base = (uint8_t *) reg_base_addr;
++	int i = 0;
++
++	DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, reg_base_addr);
++
++	core_if = DWC_ALLOC(sizeof(dwc_otg_core_if_t));
++
++	if (core_if == NULL) {
++		DWC_DEBUGPL(DBG_CIL,
++			    "Allocation of dwc_otg_core_if_t failed\n");
++		return 0;
++	}
++	core_if->core_global_regs = (dwc_otg_core_global_regs_t *) reg_base;
++
++	/*
++	 * Allocate the Device Mode structures.
++	 */
++	dev_if = DWC_ALLOC(sizeof(dwc_otg_dev_if_t));
++
++	if (dev_if == NULL) {
++		DWC_DEBUGPL(DBG_CIL, "Allocation of dwc_otg_dev_if_t failed\n");
++		DWC_FREE(core_if);
++		return 0;
++	}
++
++	dev_if->dev_global_regs =
++	    (dwc_otg_device_global_regs_t *) (reg_base +
++					      DWC_DEV_GLOBAL_REG_OFFSET);
++
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		dev_if->in_ep_regs[i] = (dwc_otg_dev_in_ep_regs_t *)
++		    (reg_base + DWC_DEV_IN_EP_REG_OFFSET +
++		     (i * DWC_EP_REG_OFFSET));
++
++		dev_if->out_ep_regs[i] = (dwc_otg_dev_out_ep_regs_t *)
++		    (reg_base + DWC_DEV_OUT_EP_REG_OFFSET +
++		     (i * DWC_EP_REG_OFFSET));
++		DWC_DEBUGPL(DBG_CILV, "in_ep_regs[%d]->diepctl=%p\n",
++			    i, &dev_if->in_ep_regs[i]->diepctl);
++		DWC_DEBUGPL(DBG_CILV, "out_ep_regs[%d]->doepctl=%p\n",
++			    i, &dev_if->out_ep_regs[i]->doepctl);
++	}
++
++	dev_if->speed = 0;	// unknown
++
++	core_if->dev_if = dev_if;
++
++	/*
++	 * Allocate the Host Mode structures.
++	 */
++	host_if = DWC_ALLOC(sizeof(dwc_otg_host_if_t));
++
++	if (host_if == NULL) {
++		DWC_DEBUGPL(DBG_CIL,
++			    "Allocation of dwc_otg_host_if_t failed\n");
++		DWC_FREE(dev_if);
++		DWC_FREE(core_if);
++		return 0;
++	}
++
++	host_if->host_global_regs = (dwc_otg_host_global_regs_t *)
++	    (reg_base + DWC_OTG_HOST_GLOBAL_REG_OFFSET);
++
++	host_if->hprt0 =
++	    (uint32_t *) (reg_base + DWC_OTG_HOST_PORT_REGS_OFFSET);
++
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		host_if->hc_regs[i] = (dwc_otg_hc_regs_t *)
++		    (reg_base + DWC_OTG_HOST_CHAN_REGS_OFFSET +
++		     (i * DWC_OTG_CHAN_REGS_OFFSET));
++		DWC_DEBUGPL(DBG_CILV, "hc_reg[%d]->hcchar=%p\n",
++			    i, &host_if->hc_regs[i]->hcchar);
++	}
++
++	host_if->num_host_channels = MAX_EPS_CHANNELS;
++	core_if->host_if = host_if;
++
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		core_if->data_fifo[i] =
++		    (uint32_t *) (reg_base + DWC_OTG_DATA_FIFO_OFFSET +
++				  (i * DWC_OTG_DATA_FIFO_SIZE));
++		DWC_DEBUGPL(DBG_CILV, "data_fifo[%d]=0x%08lx\n",
++			    i, (unsigned long)core_if->data_fifo[i]);
++	}
++
++	core_if->pcgcctl = (uint32_t *) (reg_base + DWC_OTG_PCGCCTL_OFFSET);
++
++	/* Initiate lx_state to L3 disconnected state */
++	core_if->lx_state = DWC_OTG_L3;
++	/*
++	 * Store the contents of the hardware configuration registers here for
++	 * easy access later.
++	 */
++	core_if->hwcfg1.d32 =
++	    DWC_READ_REG32(&core_if->core_global_regs->ghwcfg1);
++	core_if->hwcfg2.d32 =
++	    DWC_READ_REG32(&core_if->core_global_regs->ghwcfg2);
++	core_if->hwcfg3.d32 =
++	    DWC_READ_REG32(&core_if->core_global_regs->ghwcfg3);
++	core_if->hwcfg4.d32 =
++	    DWC_READ_REG32(&core_if->core_global_regs->ghwcfg4);
++
++	/* Force host mode to get HPTXFSIZ exact power on value */
++	{
++		gusbcfg_data_t gusbcfg = {.d32 = 0 };
++		gusbcfg.d32 =  DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++		gusbcfg.b.force_host_mode = 1;
++		DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32);
++		dwc_mdelay(100);
++		core_if->hptxfsiz.d32 =
++		DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz);
++		gusbcfg.d32 =  DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++		if (cil_force_host)
++			gusbcfg.b.force_host_mode = 1;
++		else
++			gusbcfg.b.force_host_mode = 0;
++		DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32);
++		dwc_mdelay(100);
++	}
++
++	DWC_DEBUGPL(DBG_CILV, "hwcfg1=%08x\n", core_if->hwcfg1.d32);
++	DWC_DEBUGPL(DBG_CILV, "hwcfg2=%08x\n", core_if->hwcfg2.d32);
++	DWC_DEBUGPL(DBG_CILV, "hwcfg3=%08x\n", core_if->hwcfg3.d32);
++	DWC_DEBUGPL(DBG_CILV, "hwcfg4=%08x\n", core_if->hwcfg4.d32);
++
++	core_if->hcfg.d32 =
++	    DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg);
++	core_if->dcfg.d32 =
++	    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++
++	DWC_DEBUGPL(DBG_CILV, "hcfg=%08x\n", core_if->hcfg.d32);
++	DWC_DEBUGPL(DBG_CILV, "dcfg=%08x\n", core_if->dcfg.d32);
++
++	DWC_DEBUGPL(DBG_CILV, "op_mode=%0x\n", core_if->hwcfg2.b.op_mode);
++	DWC_DEBUGPL(DBG_CILV, "arch=%0x\n", core_if->hwcfg2.b.architecture);
++	DWC_DEBUGPL(DBG_CILV, "num_dev_ep=%d\n", core_if->hwcfg2.b.num_dev_ep);
++	DWC_DEBUGPL(DBG_CILV, "num_host_chan=%d\n",
++		    core_if->hwcfg2.b.num_host_chan);
++	DWC_DEBUGPL(DBG_CILV, "nonperio_tx_q_depth=0x%0x\n",
++		    core_if->hwcfg2.b.nonperio_tx_q_depth);
++	DWC_DEBUGPL(DBG_CILV, "host_perio_tx_q_depth=0x%0x\n",
++		    core_if->hwcfg2.b.host_perio_tx_q_depth);
++	DWC_DEBUGPL(DBG_CILV, "dev_token_q_depth=0x%0x\n",
++		    core_if->hwcfg2.b.dev_token_q_depth);
++
++	DWC_DEBUGPL(DBG_CILV, "Total FIFO SZ=%d\n",
++		    core_if->hwcfg3.b.dfifo_depth);
++	DWC_DEBUGPL(DBG_CILV, "xfer_size_cntr_width=%0x\n",
++		    core_if->hwcfg3.b.xfer_size_cntr_width);
++
++	/*
++	 * Set the SRP sucess bit for FS-I2c
++	 */
++	core_if->srp_success = 0;
++	core_if->srp_timer_started = 0;
++
++	/*
++	 * Create new workqueue and init works
++	 */
++	core_if->wq_otg = DWC_WORKQ_ALLOC("dwc_otg");
++	if (core_if->wq_otg == 0) {
++		DWC_WARN("DWC_WORKQ_ALLOC failed\n");
++		DWC_FREE(host_if);
++		DWC_FREE(dev_if);
++		DWC_FREE(core_if);
++		return 0;
++	}
++
++	core_if->snpsid = DWC_READ_REG32(&core_if->core_global_regs->gsnpsid);
++
++	DWC_PRINTF("Core Release: %x.%x%x%x\n",
++		   (core_if->snpsid >> 12 & 0xF),
++		   (core_if->snpsid >> 8 & 0xF),
++		   (core_if->snpsid >> 4 & 0xF), (core_if->snpsid & 0xF));
++
++	core_if->wkp_timer = DWC_TIMER_ALLOC("Wake Up Timer",
++					     w_wakeup_detected, core_if);
++	if (core_if->wkp_timer == 0) {
++		DWC_WARN("DWC_TIMER_ALLOC failed\n");
++		DWC_FREE(host_if);
++		DWC_FREE(dev_if);
++		DWC_WORKQ_FREE(core_if->wq_otg);
++		DWC_FREE(core_if);
++		return 0;
++	}
++
++	if (dwc_otg_setup_params(core_if)) {
++		DWC_WARN("Error while setting core params\n");
++	}
++
++	core_if->hibernation_suspend = 0;
++
++	/** ADP initialization */
++	dwc_otg_adp_init(core_if);
++
++	return core_if;
++}
++
++/**
++ * This function frees the structures allocated by dwc_otg_cil_init().
++ *
++ * @param core_if The core interface pointer returned from
++ * 		  dwc_otg_cil_init().
++ *
++ */
++void dwc_otg_cil_remove(dwc_otg_core_if_t * core_if)
++{
++	dctl_data_t dctl = {.d32 = 0 };
++	DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, core_if);
++
++	/* Disable all interrupts */
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, 1, 0);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0);
++
++	dctl.b.sftdiscon = 1;
++	if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0,
++				 dctl.d32);
++	}
++
++	if (core_if->wq_otg) {
++		DWC_WORKQ_WAIT_WORK_DONE(core_if->wq_otg, 500);
++		DWC_WORKQ_FREE(core_if->wq_otg);
++	}
++	if (core_if->dev_if) {
++		DWC_FREE(core_if->dev_if);
++	}
++	if (core_if->host_if) {
++		DWC_FREE(core_if->host_if);
++	}
++
++	/** Remove ADP Stuff  */
++	dwc_otg_adp_remove(core_if);
++	if (core_if->core_params) {
++		DWC_FREE(core_if->core_params);
++	}
++	if (core_if->wkp_timer) {
++		DWC_TIMER_FREE(core_if->wkp_timer);
++	}
++	if (core_if->srp_timer) {
++		DWC_TIMER_FREE(core_if->srp_timer);
++	}
++	DWC_FREE(core_if);
++}
++
++/**
++ * This function enables the controller's Global Interrupt in the AHB Config
++ * register.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t * core_if)
++{
++	gahbcfg_data_t ahbcfg = {.d32 = 0 };
++	ahbcfg.b.glblintrmsk = 1;	/* Enable interrupts */
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, 0, ahbcfg.d32);
++}
++
++/**
++ * This function disables the controller's Global Interrupt in the AHB Config
++ * register.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t * core_if)
++{
++	gahbcfg_data_t ahbcfg = {.d32 = 0 };
++	ahbcfg.b.glblintrmsk = 1;	/* Disable interrupts */
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gahbcfg, ahbcfg.d32, 0);
++}
++
++/**
++ * This function initializes the commmon interrupts, used in both
++ * device and host modes.
++ *
++ * @param core_if Programming view of the DWC_otg controller
++ *
++ */
++static void dwc_otg_enable_common_interrupts(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	/* Clear any pending OTG Interrupts */
++	DWC_WRITE_REG32(&global_regs->gotgint, 0xFFFFFFFF);
++
++	/* Clear any pending interrupts */
++	DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF);
++
++	/*
++	 * Enable the interrupts in the GINTMSK.
++	 */
++	intr_mask.b.modemismatch = 1;
++	intr_mask.b.otgintr = 1;
++
++	if (!core_if->dma_enable) {
++		intr_mask.b.rxstsqlvl = 1;
++	}
++
++	intr_mask.b.conidstschng = 1;
++	intr_mask.b.wkupintr = 1;
++	intr_mask.b.disconnect = 0;
++	intr_mask.b.usbsuspend = 1;
++	intr_mask.b.sessreqintr = 1;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	if (core_if->core_params->lpm_enable) {
++		intr_mask.b.lpmtranrcvd = 1;
++	}
++#endif
++	DWC_WRITE_REG32(&global_regs->gintmsk, intr_mask.d32);
++}
++
++/*
++ * The restore operation is modified to support Synopsys Emulated Powerdown and
++ * Hibernation. This function is for exiting from Device mode hibernation by
++ * Host Initiated Resume/Reset and Device Initiated Remote-Wakeup.
++ * @param core_if Programming view of DWC_otg controller.
++ * @param rem_wakeup - indicates whether resume is initiated by Device or Host.
++ * @param reset - indicates whether resume is initiated by Reset.
++ */
++int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if,
++				       int rem_wakeup, int reset)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	dctl_data_t dctl = {.d32 = 0 };
++
++	int timeout = 2000;
++
++	if (!core_if->hibernation_suspend) {
++		DWC_PRINTF("Already exited from Hibernation\n");
++		return 1;
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "%s called\n", __FUNCTION__);
++	/* Switch-on voltage to the core */
++	gpwrdn.b.pwrdnswtch = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Reset core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Assert Restore signal */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.restore = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable power clamps */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnclmp = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	if (rem_wakeup) {
++		dwc_udelay(70);
++	}
++
++	/* Deassert Reset core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable PMU interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuintsel = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Mask interrupts from gpwrdn */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.connect_det_msk = 1;
++	gpwrdn.b.srp_det_msk = 1;
++	gpwrdn.b.disconn_det_msk = 1;
++	gpwrdn.b.rst_det_msk = 1;
++	gpwrdn.b.lnstchng_msk = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Indicates that we are going out from hibernation */
++	core_if->hibernation_suspend = 0;
++
++	/*
++	 * Set Restore Essential Regs bit in PCGCCTL register, restore_mode = 1
++	 * indicates restore from remote_wakeup
++	 */
++	restore_essential_regs(core_if, rem_wakeup, 0);
++
++	/*
++	 * Wait a little for seeing new value of variable hibernation_suspend if
++	 * Restore done interrupt received before polling
++	 */
++	dwc_udelay(10);
++
++	if (core_if->hibernation_suspend == 0) {
++		/*
++		 * Wait For Restore_done Interrupt. This mechanism of polling the
++		 * interrupt is introduced to avoid any possible race conditions
++		 */
++		do {
++			gintsts_data_t gintsts;
++			gintsts.d32 =
++			    DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++			if (gintsts.b.restoredone) {
++				gintsts.d32 = 0;
++				gintsts.b.restoredone = 1;
++				DWC_WRITE_REG32(&core_if->core_global_regs->
++						gintsts, gintsts.d32);
++				DWC_PRINTF("Restore Done Interrupt seen\n");
++				break;
++			}
++			dwc_udelay(10);
++		} while (--timeout);
++		if (!timeout) {
++			DWC_PRINTF("Restore Done interrupt wasn't generated here\n");
++		}
++	}
++	/* Clear all pending interupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* De-assert Restore */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.restore = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	if (!rem_wakeup) {
++		pcgcctl.d32 = 0;
++		pcgcctl.b.rstpdwnmodule = 1;
++		DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++	}
++
++	/* Restore GUSBCFG and DCFG */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg,
++			core_if->gr_backup->gusbcfg_local);
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg,
++			core_if->dr_backup->dcfg);
++
++	/* De-assert Wakeup Logic */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	if (!rem_wakeup) {
++		/* Set Device programming done bit */
++		dctl.b.pwronprgdone = 1;
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++	} else {
++		/* Start Remote Wakeup Signaling */
++		dctl.d32 = core_if->dr_backup->dctl;
++		dctl.b.rmtwkupsig = 1;
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32);
++	}
++
++	dwc_mdelay(2);
++	/* Clear all pending interupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Restore global registers */
++	dwc_otg_restore_global_regs(core_if);
++	/* Restore device global registers */
++	dwc_otg_restore_dev_regs(core_if, rem_wakeup);
++
++	if (rem_wakeup) {
++		dwc_mdelay(7);
++		dctl.d32 = 0;
++		dctl.b.rmtwkupsig = 1;
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0);
++	}
++
++	core_if->hibernation_suspend = 0;
++	/* The core will be in ON STATE */
++	core_if->lx_state = DWC_OTG_L0;
++	DWC_PRINTF("Hibernation recovery completes here\n");
++
++	return 1;
++}
++
++/*
++ * The restore operation is modified to support Synopsys Emulated Powerdown and
++ * Hibernation. This function is for exiting from Host mode hibernation by
++ * Host Initiated Resume/Reset and Device Initiated Remote-Wakeup.
++ * @param core_if Programming view of DWC_otg controller.
++ * @param rem_wakeup - indicates whether resume is initiated by Device or Host.
++ * @param reset - indicates whether resume is initiated by Reset.
++ */
++int dwc_otg_host_hibernation_restore(dwc_otg_core_if_t * core_if,
++				     int rem_wakeup, int reset)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	hprt0_data_t hprt0 = {.d32 = 0 };
++
++	int timeout = 2000;
++
++	DWC_DEBUGPL(DBG_HCD, "%s called\n", __FUNCTION__);
++	/* Switch-on voltage to the core */
++	gpwrdn.b.pwrdnswtch = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Reset core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Assert Restore signal */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.restore = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable power clamps */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnclmp = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	if (!rem_wakeup) {
++		dwc_udelay(50);
++	}
++
++	/* Deassert Reset core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable PMU interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuintsel = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	gpwrdn.d32 = 0;
++	gpwrdn.b.connect_det_msk = 1;
++	gpwrdn.b.srp_det_msk = 1;
++	gpwrdn.b.disconn_det_msk = 1;
++	gpwrdn.b.rst_det_msk = 1;
++	gpwrdn.b.lnstchng_msk = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Indicates that we are going out from hibernation */
++	core_if->hibernation_suspend = 0;
++
++	/* Set Restore Essential Regs bit in PCGCCTL register */
++	restore_essential_regs(core_if, rem_wakeup, 1);
++
++	/* Wait a little for seeing new value of variable hibernation_suspend if
++	 * Restore done interrupt received before polling */
++	dwc_udelay(10);
++
++	if (core_if->hibernation_suspend == 0) {
++		/* Wait For Restore_done Interrupt. This mechanism of polling the
++		 * interrupt is introduced to avoid any possible race conditions
++		 */
++		do {
++			gintsts_data_t gintsts;
++			gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++			if (gintsts.b.restoredone) {
++				gintsts.d32 = 0;
++				gintsts.b.restoredone = 1;
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++				DWC_DEBUGPL(DBG_HCD,"Restore Done Interrupt seen\n");
++				break;
++			}
++			dwc_udelay(10);
++		} while (--timeout);
++		if (!timeout) {
++			DWC_WARN("Restore Done interrupt wasn't generated\n");
++		}
++	}
++
++	/* Set the flag's value to 0 again after receiving restore done interrupt */
++	core_if->hibernation_suspend = 0;
++
++	/* This step is not described in functional spec but if not wait for this
++	 * delay, mismatch interrupts occurred because just after restore core is
++	 * in Device mode(gintsts.curmode == 0) */
++	dwc_mdelay(100);
++
++	/* Clear all pending interrupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* De-assert Restore */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.restore = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Restore GUSBCFG and HCFG */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg,
++			core_if->gr_backup->gusbcfg_local);
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg,
++			core_if->hr_backup->hcfg_local);
++
++	/* De-assert Wakeup Logic */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Start the Resume operation by programming HPRT0 */
++	hprt0.d32 = core_if->hr_backup->hprt0_local;
++	hprt0.b.prtpwr = 1;
++	hprt0.b.prtena = 0;
++	hprt0.b.prtsusp = 0;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++	DWC_PRINTF("Resume Starts Now\n");
++	if (!reset) {		// Indicates it is Resume Operation
++		hprt0.d32 = core_if->hr_backup->hprt0_local;
++		hprt0.b.prtres = 1;
++		hprt0.b.prtpwr = 1;
++		hprt0.b.prtena = 0;
++		hprt0.b.prtsusp = 0;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++		if (!rem_wakeup)
++			hprt0.b.prtres = 0;
++		/* Wait for Resume time and then program HPRT again */
++		dwc_mdelay(100);
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++	} else {		// Indicates it is Reset Operation
++		hprt0.d32 = core_if->hr_backup->hprt0_local;
++		hprt0.b.prtrst = 1;
++		hprt0.b.prtpwr = 1;
++		hprt0.b.prtena = 0;
++		hprt0.b.prtsusp = 0;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++		/* Wait for Reset time and then program HPRT again */
++		dwc_mdelay(60);
++		hprt0.b.prtrst = 0;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	}
++	/* Clear all interrupt status */
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	hprt0.b.prtconndet = 1;
++	hprt0.b.prtenchng = 1;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++	/* Clear all pending interupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Restore global registers */
++	dwc_otg_restore_global_regs(core_if);
++	/* Restore host global registers */
++	dwc_otg_restore_host_regs(core_if, reset);
++
++	/* The core will be in ON STATE */
++	core_if->lx_state = DWC_OTG_L0;
++	DWC_PRINTF("Hibernation recovery is complete here\n");
++	return 0;
++}
++
++/** Saves some register values into system memory. */
++int dwc_otg_save_global_regs(dwc_otg_core_if_t * core_if)
++{
++	struct dwc_otg_global_regs_backup *gr;
++	int i;
++
++	gr = core_if->gr_backup;
++	if (!gr) {
++		gr = DWC_ALLOC(sizeof(*gr));
++		if (!gr) {
++			return -DWC_E_NO_MEMORY;
++		}
++		core_if->gr_backup = gr;
++	}
++
++	gr->gotgctl_local = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++	gr->gintmsk_local = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++	gr->gahbcfg_local = DWC_READ_REG32(&core_if->core_global_regs->gahbcfg);
++	gr->gusbcfg_local = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	gr->grxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz);
++	gr->gnptxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz);
++	gr->hptxfsiz_local = DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	gr->glpmcfg_local = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++#endif
++	gr->gi2cctl_local = DWC_READ_REG32(&core_if->core_global_regs->gi2cctl);
++	gr->pcgcctl_local = DWC_READ_REG32(core_if->pcgcctl);
++	gr->gdfifocfg_local =
++	    DWC_READ_REG32(&core_if->core_global_regs->gdfifocfg);
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		gr->dtxfsiz_local[i] =
++		    DWC_READ_REG32(&(core_if->core_global_regs->dtxfsiz[i]));
++	}
++
++	DWC_DEBUGPL(DBG_ANY, "===========Backing Global registers==========\n");
++	DWC_DEBUGPL(DBG_ANY, "Backed up gotgctl   = %08x\n", gr->gotgctl_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up gintmsk   = %08x\n", gr->gintmsk_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up gahbcfg   = %08x\n", gr->gahbcfg_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up gusbcfg   = %08x\n", gr->gusbcfg_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up grxfsiz   = %08x\n", gr->grxfsiz_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up gnptxfsiz = %08x\n",
++		    gr->gnptxfsiz_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up hptxfsiz  = %08x\n",
++		    gr->hptxfsiz_local);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	DWC_DEBUGPL(DBG_ANY, "Backed up glpmcfg   = %08x\n", gr->glpmcfg_local);
++#endif
++	DWC_DEBUGPL(DBG_ANY, "Backed up gi2cctl   = %08x\n", gr->gi2cctl_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up pcgcctl   = %08x\n", gr->pcgcctl_local);
++	DWC_DEBUGPL(DBG_ANY,"Backed up gdfifocfg   = %08x\n",gr->gdfifocfg_local);
++
++	return 0;
++}
++
++/** Saves GINTMSK register before setting the msk bits. */
++int dwc_otg_save_gintmsk_reg(dwc_otg_core_if_t * core_if)
++{
++	struct dwc_otg_global_regs_backup *gr;
++
++	gr = core_if->gr_backup;
++	if (!gr) {
++		gr = DWC_ALLOC(sizeof(*gr));
++		if (!gr) {
++			return -DWC_E_NO_MEMORY;
++		}
++		core_if->gr_backup = gr;
++	}
++
++	gr->gintmsk_local = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++
++	DWC_DEBUGPL(DBG_ANY,"=============Backing GINTMSK registers============\n");
++	DWC_DEBUGPL(DBG_ANY, "Backed up gintmsk   = %08x\n", gr->gintmsk_local);
++
++	return 0;
++}
++
++int dwc_otg_save_dev_regs(dwc_otg_core_if_t * core_if)
++{
++	struct dwc_otg_dev_regs_backup *dr;
++	int i;
++
++	dr = core_if->dr_backup;
++	if (!dr) {
++		dr = DWC_ALLOC(sizeof(*dr));
++		if (!dr) {
++			return -DWC_E_NO_MEMORY;
++		}
++		core_if->dr_backup = dr;
++	}
++
++	dr->dcfg = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++	dr->dctl = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
++	dr->daintmsk =
++	    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk);
++	dr->diepmsk =
++	    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->diepmsk);
++	dr->doepmsk =
++	    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->doepmsk);
++
++	for (i = 0; i < core_if->dev_if->num_in_eps; ++i) {
++		dr->diepctl[i] =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl);
++		dr->dieptsiz[i] =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->dieptsiz);
++		dr->diepdma[i] =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepdma);
++	}
++
++	DWC_DEBUGPL(DBG_ANY,
++		    "=============Backing Host registers==============\n");
++	DWC_DEBUGPL(DBG_ANY, "Backed up dcfg            = %08x\n", dr->dcfg);
++	DWC_DEBUGPL(DBG_ANY, "Backed up dctl        = %08x\n", dr->dctl);
++	DWC_DEBUGPL(DBG_ANY, "Backed up daintmsk            = %08x\n",
++		    dr->daintmsk);
++	DWC_DEBUGPL(DBG_ANY, "Backed up diepmsk        = %08x\n", dr->diepmsk);
++	DWC_DEBUGPL(DBG_ANY, "Backed up doepmsk        = %08x\n", dr->doepmsk);
++	for (i = 0; i < core_if->dev_if->num_in_eps; ++i) {
++		DWC_DEBUGPL(DBG_ANY, "Backed up diepctl[%d]        = %08x\n", i,
++			    dr->diepctl[i]);
++		DWC_DEBUGPL(DBG_ANY, "Backed up dieptsiz[%d]        = %08x\n",
++			    i, dr->dieptsiz[i]);
++		DWC_DEBUGPL(DBG_ANY, "Backed up diepdma[%d]        = %08x\n", i,
++			    dr->diepdma[i]);
++	}
++
++	return 0;
++}
++
++int dwc_otg_save_host_regs(dwc_otg_core_if_t * core_if)
++{
++	struct dwc_otg_host_regs_backup *hr;
++	int i;
++
++	hr = core_if->hr_backup;
++	if (!hr) {
++		hr = DWC_ALLOC(sizeof(*hr));
++		if (!hr) {
++			return -DWC_E_NO_MEMORY;
++		}
++		core_if->hr_backup = hr;
++	}
++
++	hr->hcfg_local =
++	    DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg);
++	hr->haintmsk_local =
++	    DWC_READ_REG32(&core_if->host_if->host_global_regs->haintmsk);
++	for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) {
++		hr->hcintmsk_local[i] =
++		    DWC_READ_REG32(&core_if->host_if->hc_regs[i]->hcintmsk);
++	}
++	hr->hprt0_local = DWC_READ_REG32(core_if->host_if->hprt0);
++	hr->hfir_local =
++	    DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir);
++
++	DWC_DEBUGPL(DBG_ANY,
++		    "=============Backing Host registers===============\n");
++	DWC_DEBUGPL(DBG_ANY, "Backed up hcfg		= %08x\n",
++		    hr->hcfg_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up haintmsk = %08x\n", hr->haintmsk_local);
++	for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) {
++		DWC_DEBUGPL(DBG_ANY, "Backed up hcintmsk[%02d]=%08x\n", i,
++			    hr->hcintmsk_local[i]);
++	}
++	DWC_DEBUGPL(DBG_ANY, "Backed up hprt0           = %08x\n",
++		    hr->hprt0_local);
++	DWC_DEBUGPL(DBG_ANY, "Backed up hfir           = %08x\n",
++		    hr->hfir_local);
++
++	return 0;
++}
++
++int dwc_otg_restore_global_regs(dwc_otg_core_if_t *core_if)
++{
++	struct dwc_otg_global_regs_backup *gr;
++	int i;
++
++	gr = core_if->gr_backup;
++	if (!gr) {
++		return -DWC_E_INVALID;
++	}
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, gr->gotgctl_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gr->gintmsk_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gr->gusbcfg_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gr->gahbcfg_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->grxfsiz, gr->grxfsiz_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gnptxfsiz,
++			gr->gnptxfsiz_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->hptxfsiz,
++			gr->hptxfsiz_local);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gdfifocfg,
++			gr->gdfifocfg_local);
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		DWC_WRITE_REG32(&core_if->core_global_regs->dtxfsiz[i],
++				gr->dtxfsiz_local[i]);
++	}
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++	DWC_WRITE_REG32(core_if->host_if->hprt0, 0x0000100A);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg,
++			(gr->gahbcfg_local));
++	return 0;
++}
++
++int dwc_otg_restore_dev_regs(dwc_otg_core_if_t * core_if, int rem_wakeup)
++{
++	struct dwc_otg_dev_regs_backup *dr;
++	int i;
++
++	dr = core_if->dr_backup;
++
++	if (!dr) {
++		return -DWC_E_INVALID;
++	}
++
++	if (!rem_wakeup) {
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl,
++				dr->dctl);
++	}
++
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->daintmsk, dr->daintmsk);
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->diepmsk, dr->diepmsk);
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->doepmsk, dr->doepmsk);
++
++	for (i = 0; i < core_if->dev_if->num_in_eps; ++i) {
++		DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->dieptsiz, dr->dieptsiz[i]);
++		DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->diepdma, dr->diepdma[i]);
++		DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl, dr->diepctl[i]);
++	}
++
++	return 0;
++}
++
++int dwc_otg_restore_host_regs(dwc_otg_core_if_t * core_if, int reset)
++{
++	struct dwc_otg_host_regs_backup *hr;
++	int i;
++	hr = core_if->hr_backup;
++
++	if (!hr) {
++		return -DWC_E_INVALID;
++	}
++
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hr->hcfg_local);
++	//if (!reset)
++	//{
++	//      DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hfir, hr->hfir_local);
++	//}
++
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->haintmsk,
++			hr->haintmsk_local);
++	for (i = 0; i < dwc_otg_get_param_host_channels(core_if); ++i) {
++		DWC_WRITE_REG32(&core_if->host_if->hc_regs[i]->hcintmsk,
++				hr->hcintmsk_local[i]);
++	}
++
++	return 0;
++}
++
++int restore_lpm_i2c_regs(dwc_otg_core_if_t * core_if)
++{
++	struct dwc_otg_global_regs_backup *gr;
++
++	gr = core_if->gr_backup;
++
++	/* Restore values for LPM and I2C */
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, gr->glpmcfg_local);
++#endif
++	DWC_WRITE_REG32(&core_if->core_global_regs->gi2cctl, gr->gi2cctl_local);
++
++	return 0;
++}
++
++int restore_essential_regs(dwc_otg_core_if_t * core_if, int rmode, int is_host)
++{
++	struct dwc_otg_global_regs_backup *gr;
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	gahbcfg_data_t gahbcfg = {.d32 = 0 };
++	gusbcfg_data_t gusbcfg = {.d32 = 0 };
++	gintmsk_data_t gintmsk = {.d32 = 0 };
++
++	/* Restore LPM and I2C registers */
++	restore_lpm_i2c_regs(core_if);
++
++	/* Set PCGCCTL to 0 */
++	DWC_WRITE_REG32(core_if->pcgcctl, 0x00000000);
++
++	gr = core_if->gr_backup;
++	/* Load restore values for [31:14] bits */
++	DWC_WRITE_REG32(core_if->pcgcctl,
++			((gr->pcgcctl_local & 0xffffc000) | 0x00020000));
++
++	/* Umnask global Interrupt in GAHBCFG and restore it */
++	gahbcfg.d32 = gr->gahbcfg_local;
++	gahbcfg.b.glblintrmsk = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gahbcfg.d32);
++
++	/* Clear all pending interupts */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Unmask restore done interrupt */
++	gintmsk.b.restoredone = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32);
++
++	/* Restore GUSBCFG and HCFG/DCFG */
++	gusbcfg.d32 = core_if->gr_backup->gusbcfg_local;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, gusbcfg.d32);
++
++	if (is_host) {
++		hcfg_data_t hcfg = {.d32 = 0 };
++		hcfg.d32 = core_if->hr_backup->hcfg_local;
++		DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg,
++				hcfg.d32);
++
++		/* Load restore values for [31:14] bits */
++		pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000;
++		pcgcctl.d32 = gr->pcgcctl_local | 0x00020000;
++
++		if (rmode)
++			pcgcctl.b.restoremode = 1;
++		DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++		dwc_udelay(10);
++
++		/* Load restore values for [31:14] bits and set EssRegRestored bit */
++		pcgcctl.d32 = gr->pcgcctl_local | 0xffffc000;
++		pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000;
++		pcgcctl.b.ess_reg_restored = 1;
++		if (rmode)
++			pcgcctl.b.restoremode = 1;
++		DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++	} else {
++		dcfg_data_t dcfg = {.d32 = 0 };
++		dcfg.d32 = core_if->dr_backup->dcfg;
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++		/* Load restore values for [31:14] bits */
++		pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000;
++		pcgcctl.d32 = gr->pcgcctl_local | 0x00020000;
++		if (!rmode) {
++			pcgcctl.d32 |= 0x208;
++		}
++		DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++		dwc_udelay(10);
++
++		/* Load restore values for [31:14] bits */
++		pcgcctl.d32 = gr->pcgcctl_local & 0xffffc000;
++		pcgcctl.d32 = gr->pcgcctl_local | 0x00020000;
++		pcgcctl.b.ess_reg_restored = 1;
++		if (!rmode)
++			pcgcctl.d32 |= 0x208;
++		DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++	}
++
++	return 0;
++}
++
++/**
++ * Initializes the FSLSPClkSel field of the HCFG register depending on the PHY
++ * type.
++ */
++static void init_fslspclksel(dwc_otg_core_if_t * core_if)
++{
++	uint32_t val;
++	hcfg_data_t hcfg;
++
++	if (((core_if->hwcfg2.b.hs_phy_type == 2) &&
++	     (core_if->hwcfg2.b.fs_phy_type == 1) &&
++	     (core_if->core_params->ulpi_fs_ls)) ||
++	    (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) {
++		/* Full speed PHY */
++		val = DWC_HCFG_48_MHZ;
++	} else {
++		/* High speed PHY running at full speed or high speed */
++		val = DWC_HCFG_30_60_MHZ;
++	}
++
++	DWC_DEBUGPL(DBG_CIL, "Initializing HCFG.FSLSPClkSel to 0x%1x\n", val);
++	hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg);
++	hcfg.b.fslspclksel = val;
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32);
++}
++
++/**
++ * Initializes the DevSpd field of the DCFG register depending on the PHY type
++ * and the enumeration speed of the device.
++ */
++static void init_devspd(dwc_otg_core_if_t * core_if)
++{
++	uint32_t val;
++	dcfg_data_t dcfg;
++
++	if (((core_if->hwcfg2.b.hs_phy_type == 2) &&
++	     (core_if->hwcfg2.b.fs_phy_type == 1) &&
++	     (core_if->core_params->ulpi_fs_ls)) ||
++	    (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) {
++		/* Full speed PHY */
++		val = 0x3;
++	} else if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) {
++		/* High speed PHY running at full speed */
++		val = 0x1;
++	} else {
++		/* High speed PHY running at high speed */
++		val = 0x0;
++	}
++
++	DWC_DEBUGPL(DBG_CIL, "Initializing DCFG.DevSpd to 0x%1x\n", val);
++
++	dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++	dcfg.b.devspd = val;
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32);
++}
++
++/**
++ * This function calculates the number of IN EPS
++ * using GHWCFG1 and GHWCFG2 registers values
++ *
++ * @param core_if Programming view of the DWC_otg controller
++ */
++static uint32_t calc_num_in_eps(dwc_otg_core_if_t * core_if)
++{
++	uint32_t num_in_eps = 0;
++	uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep;
++	uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 3;
++	uint32_t num_tx_fifos = core_if->hwcfg4.b.num_in_eps;
++	int i;
++
++	for (i = 0; i < num_eps; ++i) {
++		if (!(hwcfg1 & 0x1))
++			num_in_eps++;
++
++		hwcfg1 >>= 2;
++	}
++
++	if (core_if->hwcfg4.b.ded_fifo_en) {
++		num_in_eps =
++		    (num_in_eps > num_tx_fifos) ? num_tx_fifos : num_in_eps;
++	}
++
++	return num_in_eps;
++}
++
++/**
++ * This function calculates the number of OUT EPS
++ * using GHWCFG1 and GHWCFG2 registers values
++ *
++ * @param core_if Programming view of the DWC_otg controller
++ */
++static uint32_t calc_num_out_eps(dwc_otg_core_if_t * core_if)
++{
++	uint32_t num_out_eps = 0;
++	uint32_t num_eps = core_if->hwcfg2.b.num_dev_ep;
++	uint32_t hwcfg1 = core_if->hwcfg1.d32 >> 2;
++	int i;
++
++	for (i = 0; i < num_eps; ++i) {
++		if (!(hwcfg1 & 0x1))
++			num_out_eps++;
++
++		hwcfg1 >>= 2;
++	}
++	return num_out_eps;
++}
++
++/**
++ * This function initializes the DWC_otg controller registers and
++ * prepares the core for device mode or host mode operation.
++ *
++ * @param core_if Programming view of the DWC_otg controller
++ *
++ */
++void dwc_otg_core_init(dwc_otg_core_if_t * core_if)
++{
++	int i = 0;
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	gahbcfg_data_t ahbcfg = {.d32 = 0 };
++	gusbcfg_data_t usbcfg = {.d32 = 0 };
++	gi2cctl_data_t i2cctl = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_CILV, "dwc_otg_core_init(%p) regs at %p\n",
++                    core_if, global_regs);
++
++	/* Common Initialization */
++	usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++
++	/* Program the ULPI External VBUS bit if needed */
++	usbcfg.b.ulpi_ext_vbus_drv =
++	    (core_if->core_params->phy_ulpi_ext_vbus ==
++	     DWC_PHY_ULPI_EXTERNAL_VBUS) ? 1 : 0;
++
++	/* Set external TS Dline pulsing */
++	usbcfg.b.term_sel_dl_pulse =
++	    (core_if->core_params->ts_dline == 1) ? 1 : 0;
++	DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++
++	/* Reset the Controller */
++	dwc_otg_core_reset(core_if);
++
++	core_if->adp_enable = core_if->core_params->adp_supp_enable;
++	core_if->power_down = core_if->core_params->power_down;
++	core_if->otg_sts = 0;
++
++	/* Initialize parameters from Hardware configuration registers. */
++	dev_if->num_in_eps = calc_num_in_eps(core_if);
++	dev_if->num_out_eps = calc_num_out_eps(core_if);
++
++	DWC_DEBUGPL(DBG_CIL, "num_dev_perio_in_ep=%d\n",
++		    core_if->hwcfg4.b.num_dev_perio_in_ep);
++
++	for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) {
++		dev_if->perio_tx_fifo_size[i] =
++		    DWC_READ_REG32(&global_regs->dtxfsiz[i]) >> 16;
++		DWC_DEBUGPL(DBG_CIL, "Periodic Tx FIFO SZ #%d=0x%0x\n",
++			    i, dev_if->perio_tx_fifo_size[i]);
++	}
++
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++		dev_if->tx_fifo_size[i] =
++		    DWC_READ_REG32(&global_regs->dtxfsiz[i]) >> 16;
++		DWC_DEBUGPL(DBG_CIL, "Tx FIFO SZ #%d=0x%0x\n",
++			    i, dev_if->tx_fifo_size[i]);
++	}
++
++	core_if->total_fifo_size = core_if->hwcfg3.b.dfifo_depth;
++	core_if->rx_fifo_size = DWC_READ_REG32(&global_regs->grxfsiz);
++	core_if->nperio_tx_fifo_size =
++	    DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16;
++
++	DWC_DEBUGPL(DBG_CIL, "Total FIFO SZ=%d\n", core_if->total_fifo_size);
++	DWC_DEBUGPL(DBG_CIL, "Rx FIFO SZ=%d\n", core_if->rx_fifo_size);
++	DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO SZ=%d\n",
++		    core_if->nperio_tx_fifo_size);
++
++	/* This programming sequence needs to happen in FS mode before any other
++	 * programming occurs */
++	if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) &&
++	    (core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS)) {
++		/* If FS mode with FS PHY */
++
++		/* core_init() is now called on every switch so only call the
++		 * following for the first time through. */
++		if (!core_if->phy_init_done) {
++			core_if->phy_init_done = 1;
++			DWC_DEBUGPL(DBG_CIL, "FS_PHY detected\n");
++			usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++			usbcfg.b.physel = 1;
++			DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++
++			/* Reset after a PHY select */
++			dwc_otg_core_reset(core_if);
++		}
++
++		/* Program DCFG.DevSpd or HCFG.FSLSPclkSel to 48Mhz in FS.      Also
++		 * do this on HNP Dev/Host mode switches (done in dev_init and
++		 * host_init). */
++		if (dwc_otg_is_host_mode(core_if)) {
++			init_fslspclksel(core_if);
++		} else {
++			init_devspd(core_if);
++		}
++
++		if (core_if->core_params->i2c_enable) {
++			DWC_DEBUGPL(DBG_CIL, "FS_PHY Enabling I2c\n");
++			/* Program GUSBCFG.OtgUtmifsSel to I2C */
++			usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++			usbcfg.b.otgutmifssel = 1;
++			DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++
++			/* Program GI2CCTL.I2CEn */
++			i2cctl.d32 = DWC_READ_REG32(&global_regs->gi2cctl);
++			i2cctl.b.i2cdevaddr = 1;
++			i2cctl.b.i2cen = 0;
++			DWC_WRITE_REG32(&global_regs->gi2cctl, i2cctl.d32);
++			i2cctl.b.i2cen = 1;
++			DWC_WRITE_REG32(&global_regs->gi2cctl, i2cctl.d32);
++		}
++
++	} /* endif speed == DWC_SPEED_PARAM_FULL */
++	else {
++		/* High speed PHY. */
++		if (!core_if->phy_init_done) {
++			core_if->phy_init_done = 1;
++			/* HS PHY parameters.  These parameters are preserved
++			 * during soft reset so only program the first time.  Do
++			 * a soft reset immediately after setting phyif.  */
++
++			if (core_if->core_params->phy_type == 2) {
++				/* ULPI interface */
++				usbcfg.b.ulpi_utmi_sel = 1;
++				usbcfg.b.phyif = 0;
++				usbcfg.b.ddrsel =
++				    core_if->core_params->phy_ulpi_ddr;
++			} else if (core_if->core_params->phy_type == 1) {
++				/* UTMI+ interface */
++				usbcfg.b.ulpi_utmi_sel = 0;
++				if (core_if->core_params->phy_utmi_width == 16) {
++					usbcfg.b.phyif = 1;
++
++				} else {
++					usbcfg.b.phyif = 0;
++				}
++			} else {
++				DWC_ERROR("FS PHY TYPE\n");
++			}
++			DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++			/* Reset after setting the PHY parameters */
++			dwc_otg_core_reset(core_if);
++		}
++	}
++
++	if ((core_if->hwcfg2.b.hs_phy_type == 2) &&
++	    (core_if->hwcfg2.b.fs_phy_type == 1) &&
++	    (core_if->core_params->ulpi_fs_ls)) {
++		DWC_DEBUGPL(DBG_CIL, "Setting ULPI FSLS\n");
++		usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++		usbcfg.b.ulpi_fsls = 1;
++		usbcfg.b.ulpi_clk_sus_m = 1;
++		DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++	} else {
++		usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++		usbcfg.b.ulpi_fsls = 0;
++		usbcfg.b.ulpi_clk_sus_m = 0;
++		DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++	}
++
++	/* Program the GAHBCFG Register. */
++	switch (core_if->hwcfg2.b.architecture) {
++
++	case DWC_SLAVE_ONLY_ARCH:
++		DWC_DEBUGPL(DBG_CIL, "Slave Only Mode\n");
++		ahbcfg.b.nptxfemplvl_txfemplvl =
++		    DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY;
++		ahbcfg.b.ptxfemplvl = DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY;
++		core_if->dma_enable = 0;
++		core_if->dma_desc_enable = 0;
++		break;
++
++	case DWC_EXT_DMA_ARCH:
++		DWC_DEBUGPL(DBG_CIL, "External DMA Mode\n");
++		{
++			uint8_t brst_sz = core_if->core_params->dma_burst_size;
++			ahbcfg.b.hburstlen = 0;
++			while (brst_sz > 1) {
++				ahbcfg.b.hburstlen++;
++				brst_sz >>= 1;
++			}
++		}
++		core_if->dma_enable = (core_if->core_params->dma_enable != 0);
++		core_if->dma_desc_enable =
++		    (core_if->core_params->dma_desc_enable != 0);
++		break;
++
++	case DWC_INT_DMA_ARCH:
++		DWC_DEBUGPL(DBG_CIL, "Internal DMA Mode\n");
++		/* Old value was DWC_GAHBCFG_INT_DMA_BURST_INCR - done for
++		  Host mode ISOC in issue fix - vahrama */
++		/* Broadcom had altered to (1<<3)|(0<<0) - WRESP=1, max 4 beats */
++		ahbcfg.b.hburstlen = (1<<3)|(0<<0);//DWC_GAHBCFG_INT_DMA_BURST_INCR4;
++		core_if->dma_enable = (core_if->core_params->dma_enable != 0);
++		core_if->dma_desc_enable =
++		    (core_if->core_params->dma_desc_enable != 0);
++		break;
++
++	}
++	if (core_if->dma_enable) {
++		if (core_if->dma_desc_enable) {
++			DWC_PRINTF("Using Descriptor DMA mode\n");
++		} else {
++			DWC_PRINTF("Using Buffer DMA mode\n");
++
++		}
++	} else {
++		DWC_PRINTF("Using Slave mode\n");
++		core_if->dma_desc_enable = 0;
++	}
++
++	if (core_if->core_params->ahb_single) {
++		ahbcfg.b.ahbsingle = 1;
++	}
++
++	ahbcfg.b.dmaenable = core_if->dma_enable;
++	DWC_WRITE_REG32(&global_regs->gahbcfg, ahbcfg.d32);
++
++	core_if->en_multiple_tx_fifo = core_if->hwcfg4.b.ded_fifo_en;
++
++	core_if->pti_enh_enable = core_if->core_params->pti_enable != 0;
++	core_if->multiproc_int_enable = core_if->core_params->mpi_enable;
++	DWC_PRINTF("Periodic Transfer Interrupt Enhancement - %s\n",
++		   ((core_if->pti_enh_enable) ? "enabled" : "disabled"));
++	DWC_PRINTF("Multiprocessor Interrupt Enhancement - %s\n",
++		   ((core_if->multiproc_int_enable) ? "enabled" : "disabled"));
++
++	/*
++	 * Program the GUSBCFG register.
++	 */
++	usbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++
++	switch (core_if->hwcfg2.b.op_mode) {
++	case DWC_MODE_HNP_SRP_CAPABLE:
++		usbcfg.b.hnpcap = (core_if->core_params->otg_cap ==
++				   DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE);
++		usbcfg.b.srpcap = (core_if->core_params->otg_cap !=
++				   DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
++		break;
++
++	case DWC_MODE_SRP_ONLY_CAPABLE:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = (core_if->core_params->otg_cap !=
++				   DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
++		break;
++
++	case DWC_MODE_NO_HNP_SRP_CAPABLE:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = 0;
++		break;
++
++	case DWC_MODE_SRP_CAPABLE_DEVICE:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = (core_if->core_params->otg_cap !=
++				   DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
++		break;
++
++	case DWC_MODE_NO_SRP_CAPABLE_DEVICE:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = 0;
++		break;
++
++	case DWC_MODE_SRP_CAPABLE_HOST:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = (core_if->core_params->otg_cap !=
++				   DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
++		break;
++
++	case DWC_MODE_NO_SRP_CAPABLE_HOST:
++		usbcfg.b.hnpcap = 0;
++		usbcfg.b.srpcap = 0;
++		break;
++	}
++
++	DWC_WRITE_REG32(&global_regs->gusbcfg, usbcfg.d32);
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	if (core_if->core_params->lpm_enable) {
++		glpmcfg_data_t lpmcfg = {.d32 = 0 };
++
++		/* To enable LPM support set lpm_cap_en bit */
++		lpmcfg.b.lpm_cap_en = 1;
++
++		/* Make AppL1Res ACK */
++		lpmcfg.b.appl_resp = 1;
++
++		/* Retry 3 times */
++		lpmcfg.b.retry_count = 3;
++
++		DWC_MODIFY_REG32(&core_if->core_global_regs->glpmcfg,
++				 0, lpmcfg.d32);
++
++	}
++#endif
++	if (core_if->core_params->ic_usb_cap) {
++		gusbcfg_data_t gusbcfg = {.d32 = 0 };
++		gusbcfg.b.ic_usb_cap = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gusbcfg,
++				 0, gusbcfg.d32);
++	}
++	{
++		gotgctl_data_t gotgctl = {.d32 = 0 };
++		gotgctl.b.otgver = core_if->core_params->otg_ver;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gotgctl, 0,
++				 gotgctl.d32);
++		/* Set OTG version supported */
++		core_if->otg_ver = core_if->core_params->otg_ver;
++		DWC_PRINTF("OTG VER PARAM: %d, OTG VER FLAG: %d\n",
++			   core_if->core_params->otg_ver, core_if->otg_ver);
++	}
++
++
++	/* Enable common interrupts */
++	dwc_otg_enable_common_interrupts(core_if);
++
++	/* Do device or host intialization based on mode during PCD
++	 * and HCD initialization  */
++	if (dwc_otg_is_host_mode(core_if)) {
++		DWC_DEBUGPL(DBG_ANY, "Host Mode\n");
++		core_if->op_state = A_HOST;
++	} else {
++		DWC_DEBUGPL(DBG_ANY, "Device Mode\n");
++		core_if->op_state = B_PERIPHERAL;
++#ifdef DWC_DEVICE_ONLY
++		dwc_otg_core_dev_init(core_if);
++#endif
++	}
++}
++
++/**
++ * This function enables the Device mode interrupts.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ */
++void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t * core_if)
++{
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++
++	DWC_DEBUGPL(DBG_CIL, "%s()\n", __func__);
++
++	/* Disable all interrupts. */
++	DWC_WRITE_REG32(&global_regs->gintmsk, 0);
++
++	/* Clear any pending interrupts */
++	DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Enable the common interrupts */
++	dwc_otg_enable_common_interrupts(core_if);
++
++	/* Enable interrupts */
++	intr_mask.b.usbreset = 1;
++	intr_mask.b.enumdone = 1;
++	/* Disable Disconnect interrupt in Device mode */
++	intr_mask.b.disconnect = 0;
++
++	if (!core_if->multiproc_int_enable) {
++		intr_mask.b.inepintr = 1;
++		intr_mask.b.outepintr = 1;
++	}
++
++	intr_mask.b.erlysuspend = 1;
++
++	if (core_if->en_multiple_tx_fifo == 0) {
++		intr_mask.b.epmismatch = 1;
++	}
++
++	//intr_mask.b.incomplisoout = 1;
++	intr_mask.b.incomplisoin = 1;
++
++/* Enable the ignore frame number for ISOC xfers - MAS */
++/* Disable to support high bandwith ISOC transfers - manukz */
++#if 0
++#ifdef DWC_UTE_PER_IO
++	if (core_if->dma_enable) {
++		if (core_if->dma_desc_enable) {
++			dctl_data_t dctl1 = {.d32 = 0 };
++			dctl1.b.ifrmnum = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++					 dctl, 0, dctl1.d32);
++			DWC_DEBUG("----Enabled Ignore frame number (0x%08x)",
++				  DWC_READ_REG32(&core_if->dev_if->
++						 dev_global_regs->dctl));
++		}
++	}
++#endif
++#endif
++#ifdef DWC_EN_ISOC
++	if (core_if->dma_enable) {
++		if (core_if->dma_desc_enable == 0) {
++			if (core_if->pti_enh_enable) {
++				dctl_data_t dctl = {.d32 = 0 };
++				dctl.b.ifrmnum = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 dev_if->dev_global_regs->dctl,
++						 0, dctl.d32);
++			} else {
++				intr_mask.b.incomplisoin = 1;
++				intr_mask.b.incomplisoout = 1;
++			}
++		}
++	} else {
++		intr_mask.b.incomplisoin = 1;
++		intr_mask.b.incomplisoout = 1;
++	}
++#endif /* DWC_EN_ISOC */
++
++	/** @todo NGS: Should this be a module parameter? */
++#ifdef USE_PERIODIC_EP
++	intr_mask.b.isooutdrop = 1;
++	intr_mask.b.eopframe = 1;
++	intr_mask.b.incomplisoin = 1;
++	intr_mask.b.incomplisoout = 1;
++#endif
++
++	DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
++
++	DWC_DEBUGPL(DBG_CIL, "%s() gintmsk=%0x\n", __func__,
++		    DWC_READ_REG32(&global_regs->gintmsk));
++}
++
++/**
++ * This function initializes the DWC_otg controller registers for
++ * device mode.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ */
++void dwc_otg_core_dev_init(dwc_otg_core_if_t * core_if)
++{
++	int i;
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dwc_otg_core_params_t *params = core_if->core_params;
++	dcfg_data_t dcfg = {.d32 = 0 };
++	depctl_data_t diepctl = {.d32 = 0 };
++	grstctl_t resetctl = {.d32 = 0 };
++	uint32_t rx_fifo_size;
++	fifosize_data_t nptxfifosize;
++	fifosize_data_t txfifosize;
++	dthrctl_data_t dthrctl;
++	fifosize_data_t ptxfifosize;
++	uint16_t rxfsiz, nptxfsiz;
++	gdfifocfg_data_t gdfifocfg = {.d32 = 0 };
++	hwcfg3_data_t hwcfg3 = {.d32 = 0 };
++
++	/* Restart the Phy Clock */
++	DWC_WRITE_REG32(core_if->pcgcctl, 0);
++
++	/* Device configuration register */
++	init_devspd(core_if);
++	dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg);
++	dcfg.b.descdma = (core_if->dma_desc_enable) ? 1 : 0;
++	dcfg.b.perfrint = DWC_DCFG_FRAME_INTERVAL_80;
++	/* Enable Device OUT NAK in case of DDMA mode*/
++	if (core_if->core_params->dev_out_nak) {
++		dcfg.b.endevoutnak = 1;
++	}
++
++	if (core_if->core_params->cont_on_bna) {
++		dctl_data_t dctl = {.d32 = 0 };
++		dctl.b.encontonbna = 1;
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, 0, dctl.d32);
++	}
++
++
++	DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++	/* Configure data FIFO sizes */
++	if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) {
++		DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n",
++			    core_if->total_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n",
++			    params->dev_rx_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n",
++			    params->dev_nperio_tx_fifo_size);
++
++		/* Rx FIFO */
++		DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->grxfsiz));
++
++#ifdef DWC_UTE_CFI
++		core_if->pwron_rxfsiz = DWC_READ_REG32(&global_regs->grxfsiz);
++		core_if->init_rxfsiz = params->dev_rx_fifo_size;
++#endif
++		rx_fifo_size = params->dev_rx_fifo_size;
++		DWC_WRITE_REG32(&global_regs->grxfsiz, rx_fifo_size);
++
++		DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->grxfsiz));
++
++		/** Set Periodic Tx FIFO Mask all bits 0 */
++		core_if->p_tx_msk = 0;
++
++		/** Set Tx FIFO Mask all bits 0 */
++		core_if->tx_msk = 0;
++
++		if (core_if->en_multiple_tx_fifo == 0) {
++			/* Non-periodic Tx FIFO */
++			DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n",
++				    DWC_READ_REG32(&global_regs->gnptxfsiz));
++
++			nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size;
++			nptxfifosize.b.startaddr = params->dev_rx_fifo_size;
++
++			DWC_WRITE_REG32(&global_regs->gnptxfsiz,
++					nptxfifosize.d32);
++
++			DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n",
++				    DWC_READ_REG32(&global_regs->gnptxfsiz));
++
++			/**@todo NGS: Fix Periodic FIFO Sizing! */
++			/*
++			 * Periodic Tx FIFOs These FIFOs are numbered from 1 to 15.
++			 * Indexes of the FIFO size module parameters in the
++			 * dev_perio_tx_fifo_size array and the FIFO size registers in
++			 * the dptxfsiz array run from 0 to 14.
++			 */
++			/** @todo Finish debug of this */
++			ptxfifosize.b.startaddr =
++			    nptxfifosize.b.startaddr + nptxfifosize.b.depth;
++			for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; i++) {
++				ptxfifosize.b.depth =
++				    params->dev_perio_tx_fifo_size[i];
++				DWC_DEBUGPL(DBG_CIL,
++					    "initial dtxfsiz[%d]=%08x\n", i,
++					    DWC_READ_REG32(&global_regs->dtxfsiz
++							   [i]));
++				DWC_WRITE_REG32(&global_regs->dtxfsiz[i],
++						ptxfifosize.d32);
++				DWC_DEBUGPL(DBG_CIL, "new dtxfsiz[%d]=%08x\n",
++					    i,
++					    DWC_READ_REG32(&global_regs->dtxfsiz
++							   [i]));
++				ptxfifosize.b.startaddr += ptxfifosize.b.depth;
++			}
++		} else {
++			/*
++			 * Tx FIFOs These FIFOs are numbered from 1 to 15.
++			 * Indexes of the FIFO size module parameters in the
++			 * dev_tx_fifo_size array and the FIFO size registers in
++			 * the dtxfsiz array run from 0 to 14.
++			 */
++
++			/* Non-periodic Tx FIFO */
++			DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n",
++				    DWC_READ_REG32(&global_regs->gnptxfsiz));
++
++#ifdef DWC_UTE_CFI
++			core_if->pwron_gnptxfsiz =
++			    (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16);
++			core_if->init_gnptxfsiz =
++			    params->dev_nperio_tx_fifo_size;
++#endif
++			nptxfifosize.b.depth = params->dev_nperio_tx_fifo_size;
++			nptxfifosize.b.startaddr = params->dev_rx_fifo_size;
++
++			DWC_WRITE_REG32(&global_regs->gnptxfsiz,
++					nptxfifosize.d32);
++
++			DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n",
++				    DWC_READ_REG32(&global_regs->gnptxfsiz));
++
++			txfifosize.b.startaddr =
++			    nptxfifosize.b.startaddr + nptxfifosize.b.depth;
++
++			for (i = 0; i < core_if->hwcfg4.b.num_in_eps; i++) {
++
++				txfifosize.b.depth =
++				    params->dev_tx_fifo_size[i];
++
++				DWC_DEBUGPL(DBG_CIL,
++					    "initial dtxfsiz[%d]=%08x\n",
++					    i,
++					    DWC_READ_REG32(&global_regs->dtxfsiz
++							   [i]));
++
++#ifdef DWC_UTE_CFI
++				core_if->pwron_txfsiz[i] =
++				    (DWC_READ_REG32
++				     (&global_regs->dtxfsiz[i]) >> 16);
++				core_if->init_txfsiz[i] =
++				    params->dev_tx_fifo_size[i];
++#endif
++				DWC_WRITE_REG32(&global_regs->dtxfsiz[i],
++						txfifosize.d32);
++
++				DWC_DEBUGPL(DBG_CIL,
++					    "new dtxfsiz[%d]=%08x\n",
++					    i,
++					    DWC_READ_REG32(&global_regs->dtxfsiz
++							   [i]));
++
++				txfifosize.b.startaddr += txfifosize.b.depth;
++			}
++			if (core_if->snpsid <= OTG_CORE_REV_2_94a) {
++				/* Calculating DFIFOCFG for Device mode to include RxFIFO and NPTXFIFO */
++				gdfifocfg.d32 = DWC_READ_REG32(&global_regs->gdfifocfg);
++				hwcfg3.d32 = DWC_READ_REG32(&global_regs->ghwcfg3);
++				gdfifocfg.b.gdfifocfg = (DWC_READ_REG32(&global_regs->ghwcfg3) >> 16);
++				DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32);
++				rxfsiz = (DWC_READ_REG32(&global_regs->grxfsiz) & 0x0000ffff);
++				nptxfsiz = (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16);
++				gdfifocfg.b.epinfobase = rxfsiz + nptxfsiz;
++				DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32);
++			}
++		}
++
++		/* Flush the FIFOs */
++		dwc_otg_flush_tx_fifo(core_if, 0x10);	/* all Tx FIFOs */
++		dwc_otg_flush_rx_fifo(core_if);
++
++		/* Flush the Learning Queue. */
++		resetctl.b.intknqflsh = 1;
++		DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32);
++
++		if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) {
++			core_if->start_predict = 0;
++			for (i = 0; i<= core_if->dev_if->num_in_eps; ++i) {
++				core_if->nextep_seq[i] = 0xff;	// 0xff - EP not active
++			}
++			core_if->nextep_seq[0] = 0;
++			core_if->first_in_nextep_seq = 0;
++			diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl);
++			diepctl.b.nextep = 0;
++			DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32);
++
++			/* Update IN Endpoint Mismatch Count by active IN NP EP count + 1 */
++			dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg);
++			dcfg.b.epmscnt = 2;
++			DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++			DWC_DEBUGPL(DBG_CILV,"%s first_in_nextep_seq= %2d; nextep_seq[]:\n",
++				__func__, core_if->first_in_nextep_seq);
++			for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++				DWC_DEBUGPL(DBG_CILV, "%2d ", core_if->nextep_seq[i]);
++			}
++			DWC_DEBUGPL(DBG_CILV,"\n");
++		}
++
++		/* Clear all pending Device Interrupts */
++		/** @todo - if the condition needed to be checked
++		 *  or in any case all pending interrutps should be cleared?
++	     */
++		if (core_if->multiproc_int_enable) {
++			for (i = 0; i < core_if->dev_if->num_in_eps; ++i) {
++				DWC_WRITE_REG32(&dev_if->
++						dev_global_regs->diepeachintmsk[i], 0);
++			}
++		}
++
++		for (i = 0; i < core_if->dev_if->num_out_eps; ++i) {
++			DWC_WRITE_REG32(&dev_if->
++					dev_global_regs->doepeachintmsk[i], 0);
++		}
++
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->deachint, 0xFFFFFFFF);
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->deachintmsk, 0);
++	} else {
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->diepmsk, 0);
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->doepmsk, 0);
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->daint, 0xFFFFFFFF);
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->daintmsk, 0);
++	}
++
++	for (i = 0; i <= dev_if->num_in_eps; i++) {
++		depctl_data_t depctl;
++		depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++		if (depctl.b.epena) {
++			depctl.d32 = 0;
++			depctl.b.epdis = 1;
++			depctl.b.snak = 1;
++		} else {
++			depctl.d32 = 0;
++		}
++
++		DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32);
++
++		DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->dieptsiz, 0);
++		DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepdma, 0);
++		DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepint, 0xFF);
++	}
++
++	for (i = 0; i <= dev_if->num_out_eps; i++) {
++		depctl_data_t depctl;
++		depctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl);
++		if (depctl.b.epena) {
++			dctl_data_t dctl = {.d32 = 0 };
++			gintmsk_data_t gintsts = {.d32 = 0 };
++			doepint_data_t doepint = {.d32 = 0 };
++			dctl.b.sgoutnak = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++			do {
++				dwc_udelay(10);
++				gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++			} while (!gintsts.b.goutnakeff);
++			gintsts.d32 = 0;
++			gintsts.b.goutnakeff = 1;
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++			depctl.d32 = 0;
++			depctl.b.epdis = 1;
++			depctl.b.snak = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->doepctl, depctl.d32);
++			do {
++				dwc_udelay(10);
++				doepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++					out_ep_regs[i]->doepint);
++			} while (!doepint.b.epdisabled);
++
++			doepint.b.epdisabled = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[i]->doepint, doepint.d32);
++
++			dctl.d32 = 0;
++			dctl.b.cgoutnak = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++		} else {
++			depctl.d32 = 0;
++		}
++
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, depctl.d32);
++
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doeptsiz, 0);
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepdma, 0);
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepint, 0xFF);
++	}
++
++	if (core_if->en_multiple_tx_fifo && core_if->dma_enable) {
++		dev_if->non_iso_tx_thr_en = params->thr_ctl & 0x1;
++		dev_if->iso_tx_thr_en = (params->thr_ctl >> 1) & 0x1;
++		dev_if->rx_thr_en = (params->thr_ctl >> 2) & 0x1;
++
++		dev_if->rx_thr_length = params->rx_thr_length;
++		dev_if->tx_thr_length = params->tx_thr_length;
++
++		dev_if->setup_desc_index = 0;
++
++		dthrctl.d32 = 0;
++		dthrctl.b.non_iso_thr_en = dev_if->non_iso_tx_thr_en;
++		dthrctl.b.iso_thr_en = dev_if->iso_tx_thr_en;
++		dthrctl.b.tx_thr_len = dev_if->tx_thr_length;
++		dthrctl.b.rx_thr_en = dev_if->rx_thr_en;
++		dthrctl.b.rx_thr_len = dev_if->rx_thr_length;
++		dthrctl.b.ahb_thr_ratio = params->ahb_thr_ratio;
++
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->dtknqr3_dthrctl,
++				dthrctl.d32);
++
++		DWC_DEBUGPL(DBG_CIL,
++			    "Non ISO Tx Thr - %d\nISO Tx Thr - %d\nRx Thr - %d\nTx Thr Len - %d\nRx Thr Len - %d\n",
++			    dthrctl.b.non_iso_thr_en, dthrctl.b.iso_thr_en,
++			    dthrctl.b.rx_thr_en, dthrctl.b.tx_thr_len,
++			    dthrctl.b.rx_thr_len);
++
++	}
++
++	dwc_otg_enable_device_interrupts(core_if);
++
++	{
++		diepmsk_data_t msk = {.d32 = 0 };
++		msk.b.txfifoundrn = 1;
++		if (core_if->multiproc_int_enable) {
++			DWC_MODIFY_REG32(&dev_if->dev_global_regs->
++					 diepeachintmsk[0], msk.d32, msk.d32);
++		} else {
++			DWC_MODIFY_REG32(&dev_if->dev_global_regs->diepmsk,
++					 msk.d32, msk.d32);
++		}
++	}
++
++	if (core_if->multiproc_int_enable) {
++		/* Set NAK on Babble */
++		dctl_data_t dctl = {.d32 = 0 };
++		dctl.b.nakonbble = 1;
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, 0, dctl.d32);
++	}
++
++	if (core_if->snpsid >= OTG_CORE_REV_2_94a) {
++		dctl_data_t dctl = {.d32 = 0 };
++		dctl.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dctl);
++		dctl.b.sftdiscon = 0;
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->dctl, dctl.d32);
++	}
++}
++
++/**
++ * This function enables the Host mode interrupts.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ */
++void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_CIL, "%s(%p)\n", __func__, core_if);
++
++	/* Disable all interrupts. */
++	DWC_WRITE_REG32(&global_regs->gintmsk, 0);
++
++	/* Clear any pending interrupts. */
++	DWC_WRITE_REG32(&global_regs->gintsts, 0xFFFFFFFF);
++
++	/* Enable the common interrupts */
++	dwc_otg_enable_common_interrupts(core_if);
++
++	/*
++	 * Enable host mode interrupts without disturbing common
++	 * interrupts.
++	 */
++
++	intr_mask.b.disconnect = 1;
++	intr_mask.b.portintr = 1;
++	intr_mask.b.hcintr = 1;
++
++	DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
++}
++
++/**
++ * This function disables the Host Mode interrupts.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ */
++void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_CILV, "%s()\n", __func__);
++
++	/*
++	 * Disable host mode interrupts without disturbing common
++	 * interrupts.
++	 */
++	intr_mask.b.sofintr = 1;
++	intr_mask.b.portintr = 1;
++	intr_mask.b.hcintr = 1;
++	intr_mask.b.ptxfempty = 1;
++	intr_mask.b.nptxfempty = 1;
++
++	DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32, 0);
++}
++
++/**
++ * This function initializes the DWC_otg controller registers for
++ * host mode.
++ *
++ * This function flushes the Tx and Rx FIFOs and it flushes any entries in the
++ * request queues. Host channels are reset to ensure that they are ready for
++ * performing transfers.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ *
++ */
++void dwc_otg_core_host_init(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	dwc_otg_host_if_t *host_if = core_if->host_if;
++	dwc_otg_core_params_t *params = core_if->core_params;
++	hprt0_data_t hprt0 = {.d32 = 0 };
++	fifosize_data_t nptxfifosize;
++	fifosize_data_t ptxfifosize;
++	uint16_t rxfsiz, nptxfsiz, hptxfsiz;
++	gdfifocfg_data_t gdfifocfg = {.d32 = 0 };
++	int i;
++	hcchar_data_t hcchar;
++	hcfg_data_t hcfg;
++	hfir_data_t hfir;
++	dwc_otg_hc_regs_t *hc_regs;
++	int num_channels;
++	gotgctl_data_t gotgctl = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_CILV, "%s(%p)\n", __func__, core_if);
++
++	/* Restart the Phy Clock */
++	DWC_WRITE_REG32(core_if->pcgcctl, 0);
++
++	/* Initialize Host Configuration Register */
++	init_fslspclksel(core_if);
++	if (core_if->core_params->speed == DWC_SPEED_PARAM_FULL) {
++		hcfg.d32 = DWC_READ_REG32(&host_if->host_global_regs->hcfg);
++		hcfg.b.fslssupp = 1;
++		DWC_WRITE_REG32(&host_if->host_global_regs->hcfg, hcfg.d32);
++
++	}
++
++	/* This bit allows dynamic reloading of the HFIR register
++	 * during runtime. This bit needs to be programmed during
++	 * initial configuration and its value must not be changed
++	 * during runtime.*/
++	if (core_if->core_params->reload_ctl == 1) {
++		hfir.d32 = DWC_READ_REG32(&host_if->host_global_regs->hfir);
++		hfir.b.hfirrldctrl = 1;
++		DWC_WRITE_REG32(&host_if->host_global_regs->hfir, hfir.d32);
++	}
++
++	if (core_if->core_params->dma_desc_enable) {
++		uint8_t op_mode = core_if->hwcfg2.b.op_mode;
++		if (!
++		    (core_if->hwcfg4.b.desc_dma
++		     && (core_if->snpsid >= OTG_CORE_REV_2_90a)
++		     && ((op_mode == DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG)
++			 || (op_mode == DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG)
++			 || (op_mode ==
++			     DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG)
++			 || (op_mode == DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)
++			 || (op_mode ==
++			     DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST)))) {
++
++			DWC_ERROR("Host can't operate in Descriptor DMA mode.\n"
++				  "Either core version is below 2.90a or "
++				  "GHWCFG2, GHWCFG4 registers' values do not allow Descriptor DMA in host mode.\n"
++				  "To run the driver in Buffer DMA host mode set dma_desc_enable "
++				  "module parameter to 0.\n");
++			return;
++		}
++		hcfg.d32 = DWC_READ_REG32(&host_if->host_global_regs->hcfg);
++		hcfg.b.descdma = 1;
++		DWC_WRITE_REG32(&host_if->host_global_regs->hcfg, hcfg.d32);
++	}
++
++	/* Configure data FIFO sizes */
++	if (core_if->hwcfg2.b.dynamic_fifo && params->enable_dynamic_fifo) {
++		DWC_DEBUGPL(DBG_CIL, "Total FIFO Size=%d\n",
++			    core_if->total_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "Rx FIFO Size=%d\n",
++			    params->host_rx_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "NP Tx FIFO Size=%d\n",
++			    params->host_nperio_tx_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "P Tx FIFO Size=%d\n",
++			    params->host_perio_tx_fifo_size);
++
++		/* Rx FIFO */
++		DWC_DEBUGPL(DBG_CIL, "initial grxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->grxfsiz));
++		DWC_WRITE_REG32(&global_regs->grxfsiz,
++				params->host_rx_fifo_size);
++		DWC_DEBUGPL(DBG_CIL, "new grxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->grxfsiz));
++
++		/* Non-periodic Tx FIFO */
++		DWC_DEBUGPL(DBG_CIL, "initial gnptxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->gnptxfsiz));
++		nptxfifosize.b.depth = params->host_nperio_tx_fifo_size;
++		nptxfifosize.b.startaddr = params->host_rx_fifo_size;
++		DWC_WRITE_REG32(&global_regs->gnptxfsiz, nptxfifosize.d32);
++		DWC_DEBUGPL(DBG_CIL, "new gnptxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->gnptxfsiz));
++
++		/* Periodic Tx FIFO */
++		DWC_DEBUGPL(DBG_CIL, "initial hptxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->hptxfsiz));
++		ptxfifosize.b.depth = params->host_perio_tx_fifo_size;
++		ptxfifosize.b.startaddr =
++		    nptxfifosize.b.startaddr + nptxfifosize.b.depth;
++		DWC_WRITE_REG32(&global_regs->hptxfsiz, ptxfifosize.d32);
++		DWC_DEBUGPL(DBG_CIL, "new hptxfsiz=%08x\n",
++			    DWC_READ_REG32(&global_regs->hptxfsiz));
++
++		if (core_if->en_multiple_tx_fifo
++		    && core_if->snpsid <= OTG_CORE_REV_2_94a) {
++			/* Global DFIFOCFG calculation for Host mode - include RxFIFO, NPTXFIFO and HPTXFIFO */
++			gdfifocfg.d32 = DWC_READ_REG32(&global_regs->gdfifocfg);
++			rxfsiz = (DWC_READ_REG32(&global_regs->grxfsiz) & 0x0000ffff);
++			nptxfsiz = (DWC_READ_REG32(&global_regs->gnptxfsiz) >> 16);
++			hptxfsiz = (DWC_READ_REG32(&global_regs->hptxfsiz) >> 16);
++			gdfifocfg.b.epinfobase = rxfsiz + nptxfsiz + hptxfsiz;
++			DWC_WRITE_REG32(&global_regs->gdfifocfg, gdfifocfg.d32);
++		}
++	}
++
++	/* TODO - check this */
++	/* Clear Host Set HNP Enable in the OTG Control Register */
++	gotgctl.b.hstsethnpen = 1;
++	DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0);
++	/* Make sure the FIFOs are flushed. */
++	dwc_otg_flush_tx_fifo(core_if, 0x10 /* all TX FIFOs */ );
++	dwc_otg_flush_rx_fifo(core_if);
++
++	/* Clear Host Set HNP Enable in the OTG Control Register */
++	gotgctl.b.hstsethnpen = 1;
++	DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0);
++
++	if (!core_if->core_params->dma_desc_enable) {
++		/* Flush out any leftover queued requests. */
++		num_channels = core_if->core_params->host_channels;
++
++		for (i = 0; i < num_channels; i++) {
++			hc_regs = core_if->host_if->hc_regs[i];
++			hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++			hcchar.b.chen = 0;
++			hcchar.b.chdis = 1;
++			hcchar.b.epdir = 0;
++			DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++		}
++
++		/* Halt all channels to put them into a known state. */
++		for (i = 0; i < num_channels; i++) {
++			int count = 0;
++			hc_regs = core_if->host_if->hc_regs[i];
++			hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++			hcchar.b.chen = 1;
++			hcchar.b.chdis = 1;
++			hcchar.b.epdir = 0;
++			DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++			DWC_DEBUGPL(DBG_HCDV, "%s: Halt channel %d regs %p\n", __func__, i, hc_regs);
++			do {
++				hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++				if (++count > 1000) {
++					DWC_ERROR
++					    ("%s: Unable to clear halt on channel %d (timeout HCCHAR 0x%X @%p)\n",
++					     __func__, i, hcchar.d32, &hc_regs->hcchar);
++					break;
++				}
++				dwc_udelay(1);
++			} while (hcchar.b.chen);
++		}
++	}
++
++	/* Turn on the vbus power. */
++	DWC_PRINTF("Init: Port Power? op_state=%d\n", core_if->op_state);
++	if (core_if->op_state == A_HOST) {
++		hprt0.d32 = dwc_otg_read_hprt0(core_if);
++		DWC_PRINTF("Init: Power Port (%d)\n", hprt0.b.prtpwr);
++		if (hprt0.b.prtpwr == 0) {
++			hprt0.b.prtpwr = 1;
++			DWC_WRITE_REG32(host_if->hprt0, hprt0.d32);
++		}
++	}
++
++	dwc_otg_enable_host_interrupts(core_if);
++}
++
++/**
++ * Prepares a host channel for transferring packets to/from a specific
++ * endpoint. The HCCHARn register is set up with the characteristics specified
++ * in _hc. Host channel interrupts that may need to be serviced while this
++ * transfer is in progress are enabled.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ * @param hc Information needed to initialize the host channel
++ */
++void dwc_otg_hc_init(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	hcintmsk_data_t hc_intr_mask;
++	hcchar_data_t hcchar;
++	hcsplt_data_t hcsplt;
++
++	uint8_t hc_num = hc->hc_num;
++	dwc_otg_host_if_t *host_if = core_if->host_if;
++	dwc_otg_hc_regs_t *hc_regs = host_if->hc_regs[hc_num];
++
++	/* Clear old interrupt conditions for this host channel. */
++	hc_intr_mask.d32 = 0xFFFFFFFF;
++	hc_intr_mask.b.reserved14_31 = 0;
++	DWC_WRITE_REG32(&hc_regs->hcint, hc_intr_mask.d32);
++
++	/* Enable channel interrupts required for this transfer. */
++	hc_intr_mask.d32 = 0;
++	hc_intr_mask.b.chhltd = 1;
++	if (core_if->dma_enable) {
++		/* For Descriptor DMA mode core halts the channel on AHB error. Interrupt is not required */
++		if (!core_if->dma_desc_enable)
++			hc_intr_mask.b.ahberr = 1;
++		else {
++			if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)
++				hc_intr_mask.b.xfercompl = 1;
++		}
++
++		if (hc->error_state && !hc->do_split &&
++		    hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
++			hc_intr_mask.b.ack = 1;
++			if (hc->ep_is_in) {
++				hc_intr_mask.b.datatglerr = 1;
++				if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) {
++					hc_intr_mask.b.nak = 1;
++				}
++			}
++		}
++	} else {
++		switch (hc->ep_type) {
++		case DWC_OTG_EP_TYPE_CONTROL:
++		case DWC_OTG_EP_TYPE_BULK:
++			hc_intr_mask.b.xfercompl = 1;
++			hc_intr_mask.b.stall = 1;
++			hc_intr_mask.b.xacterr = 1;
++			hc_intr_mask.b.datatglerr = 1;
++			if (hc->ep_is_in) {
++				hc_intr_mask.b.bblerr = 1;
++			} else {
++				hc_intr_mask.b.nak = 1;
++				hc_intr_mask.b.nyet = 1;
++				if (hc->do_ping) {
++					hc_intr_mask.b.ack = 1;
++				}
++			}
++
++			if (hc->do_split) {
++				hc_intr_mask.b.nak = 1;
++				if (hc->complete_split) {
++					hc_intr_mask.b.nyet = 1;
++				} else {
++					hc_intr_mask.b.ack = 1;
++				}
++			}
++
++			if (hc->error_state) {
++				hc_intr_mask.b.ack = 1;
++			}
++			break;
++		case DWC_OTG_EP_TYPE_INTR:
++			hc_intr_mask.b.xfercompl = 1;
++			hc_intr_mask.b.nak = 1;
++			hc_intr_mask.b.stall = 1;
++			hc_intr_mask.b.xacterr = 1;
++			hc_intr_mask.b.datatglerr = 1;
++			hc_intr_mask.b.frmovrun = 1;
++
++			if (hc->ep_is_in) {
++				hc_intr_mask.b.bblerr = 1;
++			}
++			if (hc->error_state) {
++				hc_intr_mask.b.ack = 1;
++			}
++			if (hc->do_split) {
++				if (hc->complete_split) {
++					hc_intr_mask.b.nyet = 1;
++				} else {
++					hc_intr_mask.b.ack = 1;
++				}
++			}
++			break;
++		case DWC_OTG_EP_TYPE_ISOC:
++			hc_intr_mask.b.xfercompl = 1;
++			hc_intr_mask.b.frmovrun = 1;
++			hc_intr_mask.b.ack = 1;
++
++			if (hc->ep_is_in) {
++				hc_intr_mask.b.xacterr = 1;
++				hc_intr_mask.b.bblerr = 1;
++			}
++			break;
++		}
++	}
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, hc_intr_mask.d32);
++
++	/*
++	 * Program the HCCHARn register with the endpoint characteristics for
++	 * the current transfer.
++	 */
++	hcchar.d32 = 0;
++	hcchar.b.devaddr = hc->dev_addr;
++	hcchar.b.epnum = hc->ep_num;
++	hcchar.b.epdir = hc->ep_is_in;
++	hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW);
++	hcchar.b.eptype = hc->ep_type;
++	hcchar.b.mps = hc->max_packet;
++
++	DWC_WRITE_REG32(&host_if->hc_regs[hc_num]->hcchar, hcchar.d32);
++
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d, Dev Addr %d, EP #%d\n",
++                    __func__, hc->hc_num, hcchar.b.devaddr, hcchar.b.epnum);
++	DWC_DEBUGPL(DBG_HCDV, "	 Is In %d, Is Low Speed %d, EP Type %d, "
++                                "Max Pkt %d, Multi Cnt %d\n",
++                    hcchar.b.epdir, hcchar.b.lspddev, hcchar.b.eptype,
++                    hcchar.b.mps, hcchar.b.multicnt);
++
++	/*
++	 * Program the HCSPLIT register for SPLITs
++	 */
++	hcsplt.d32 = 0;
++	if (hc->do_split) {
++		DWC_DEBUGPL(DBG_HCDV, "Programming HC %d with split --> %s\n",
++			    hc->hc_num,
++			    hc->complete_split ? "CSPLIT" : "SSPLIT");
++		hcsplt.b.compsplt = hc->complete_split;
++		hcsplt.b.xactpos = hc->xact_pos;
++		hcsplt.b.hubaddr = hc->hub_addr;
++		hcsplt.b.prtaddr = hc->port_addr;
++		DWC_DEBUGPL(DBG_HCDV, "\t  comp split %d\n", hc->complete_split);
++		DWC_DEBUGPL(DBG_HCDV, "\t  xact pos %d\n", hc->xact_pos);
++		DWC_DEBUGPL(DBG_HCDV, "\t  hub addr %d\n", hc->hub_addr);
++		DWC_DEBUGPL(DBG_HCDV, "\t  port addr %d\n", hc->port_addr);
++		DWC_DEBUGPL(DBG_HCDV, "\t  is_in %d\n", hc->ep_is_in);
++		DWC_DEBUGPL(DBG_HCDV, "\t  Max Pkt: %d\n", hcchar.b.mps);
++		DWC_DEBUGPL(DBG_HCDV, "\t  xferlen: %d\n", hc->xfer_len);
++	}
++	DWC_WRITE_REG32(&host_if->hc_regs[hc_num]->hcsplt, hcsplt.d32);
++
++}
++
++/**
++ * Attempts to halt a host channel. This function should only be called in
++ * Slave mode or to abort a transfer in either Slave mode or DMA mode. Under
++ * normal circumstances in DMA mode, the controller halts the channel when the
++ * transfer is complete or a condition occurs that requires application
++ * intervention.
++ *
++ * In slave mode, checks for a free request queue entry, then sets the Channel
++ * Enable and Channel Disable bits of the Host Channel Characteristics
++ * register of the specified channel to intiate the halt. If there is no free
++ * request queue entry, sets only the Channel Disable bit of the HCCHARn
++ * register to flush requests for this channel. In the latter case, sets a
++ * flag to indicate that the host channel needs to be halted when a request
++ * queue slot is open.
++ *
++ * In DMA mode, always sets the Channel Enable and Channel Disable bits of the
++ * HCCHARn register. The controller ensures there is space in the request
++ * queue before submitting the halt request.
++ *
++ * Some time may elapse before the core flushes any posted requests for this
++ * host channel and halts. The Channel Halted interrupt handler completes the
++ * deactivation of the host channel.
++ *
++ * @param core_if Controller register interface.
++ * @param hc Host channel to halt.
++ * @param halt_status Reason for halting the channel.
++ */
++void dwc_otg_hc_halt(dwc_otg_core_if_t * core_if,
++		     dwc_hc_t * hc, dwc_otg_halt_status_e halt_status)
++{
++	gnptxsts_data_t nptxsts;
++	hptxsts_data_t hptxsts;
++	hcchar_data_t hcchar;
++	dwc_otg_hc_regs_t *hc_regs;
++	dwc_otg_core_global_regs_t *global_regs;
++	dwc_otg_host_global_regs_t *host_global_regs;
++
++	hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++	global_regs = core_if->core_global_regs;
++	host_global_regs = core_if->host_if->host_global_regs;
++
++	DWC_ASSERT(!(halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS),
++		   "halt_status = %d\n", halt_status);
++
++	if (halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE ||
++	    halt_status == DWC_OTG_HC_XFER_AHB_ERR) {
++		/*
++		 * Disable all channel interrupts except Ch Halted. The QTD
++		 * and QH state associated with this transfer has been cleared
++		 * (in the case of URB_DEQUEUE), so the channel needs to be
++		 * shut down carefully to prevent crashes.
++		 */
++		hcintmsk_data_t hcintmsk;
++		hcintmsk.d32 = 0;
++		hcintmsk.b.chhltd = 1;
++		DWC_WRITE_REG32(&hc_regs->hcintmsk, hcintmsk.d32);
++
++		/*
++		 * Make sure no other interrupts besides halt are currently
++		 * pending. Handling another interrupt could cause a crash due
++		 * to the QTD and QH state.
++		 */
++		DWC_WRITE_REG32(&hc_regs->hcint, ~hcintmsk.d32);
++
++		/*
++		 * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR
++		 * even if the channel was already halted for some other
++		 * reason.
++		 */
++		hc->halt_status = halt_status;
++
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++		if (hcchar.b.chen == 0) {
++			/*
++			 * The channel is either already halted or it hasn't
++			 * started yet. In DMA mode, the transfer may halt if
++			 * it finishes normally or a condition occurs that
++			 * requires driver intervention. Don't want to halt
++			 * the channel again. In either Slave or DMA mode,
++			 * it's possible that the transfer has been assigned
++			 * to a channel, but not started yet when an URB is
++			 * dequeued. Don't want to halt a channel that hasn't
++			 * started yet.
++			 */
++			return;
++		}
++	}
++	if (hc->halt_pending) {
++		/*
++		 * A halt has already been issued for this channel. This might
++		 * happen when a transfer is aborted by a higher level in
++		 * the stack.
++		 */
++#ifdef DEBUG
++		DWC_PRINTF
++		    ("*** %s: Channel %d, _hc->halt_pending already set ***\n",
++		     __func__, hc->hc_num);
++
++#endif
++		return;
++	}
++
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* No need to set the bit in DDMA for disabling the channel */
++	//TODO check it everywhere channel is disabled
++	if (!core_if->core_params->dma_desc_enable)
++		hcchar.b.chen = 1;
++	hcchar.b.chdis = 1;
++
++	if (!core_if->dma_enable) {
++		/* Check for space in the request queue to issue the halt. */
++		if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL ||
++		    hc->ep_type == DWC_OTG_EP_TYPE_BULK) {
++			nptxsts.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++			if (nptxsts.b.nptxqspcavail == 0) {
++				hcchar.b.chen = 0;
++			}
++		} else {
++			hptxsts.d32 =
++			    DWC_READ_REG32(&host_global_regs->hptxsts);
++			if ((hptxsts.b.ptxqspcavail == 0)
++			    || (core_if->queuing_high_bandwidth)) {
++				hcchar.b.chen = 0;
++			}
++		}
++	}
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	hc->halt_status = halt_status;
++
++	if (hcchar.b.chen) {
++		hc->halt_pending = 1;
++		hc->halt_on_queue = 0;
++	} else {
++		hc->halt_on_queue = 1;
++	}
++
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num);
++	DWC_DEBUGPL(DBG_HCDV, "	 hcchar: 0x%08x\n", hcchar.d32);
++	DWC_DEBUGPL(DBG_HCDV, "	 halt_pending: %d\n", hc->halt_pending);
++	DWC_DEBUGPL(DBG_HCDV, "	 halt_on_queue: %d\n", hc->halt_on_queue);
++	DWC_DEBUGPL(DBG_HCDV, "	 halt_status: %d\n", hc->halt_status);
++
++	return;
++}
++
++/**
++ * Clears the transfer state for a host channel. This function is normally
++ * called after a transfer is done and the host channel is being released.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param hc Identifies the host channel to clean up.
++ */
++void dwc_otg_hc_cleanup(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	dwc_otg_hc_regs_t *hc_regs;
++
++	hc->xfer_started = 0;
++
++	/*
++	 * Clear channel interrupt enables and any unhandled channel interrupt
++	 * conditions.
++	 */
++	hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, 0);
++	DWC_WRITE_REG32(&hc_regs->hcint, 0xFFFFFFFF);
++#ifdef DEBUG
++	DWC_TIMER_CANCEL(core_if->hc_xfer_timer[hc->hc_num]);
++#endif
++}
++
++/**
++ * Sets the channel property that indicates in which frame a periodic transfer
++ * should occur. This is always set to the _next_ frame. This function has no
++ * effect on non-periodic transfers.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param hc Identifies the host channel to set up and its properties.
++ * @param hcchar Current value of the HCCHAR register for the specified host
++ * channel.
++ */
++static inline void hc_set_even_odd_frame(dwc_otg_core_if_t * core_if,
++					 dwc_hc_t * hc, hcchar_data_t * hcchar)
++{
++	if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++	    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++		hfnum_data_t hfnum;
++		hfnum.d32 =
++		    DWC_READ_REG32(&core_if->host_if->host_global_regs->hfnum);
++
++		/* 1 if _next_ frame is odd, 0 if it's even */
++		hcchar->b.oddfrm = (hfnum.b.frnum & 0x1) ? 0 : 1;
++#ifdef DEBUG
++		if (hc->ep_type == DWC_OTG_EP_TYPE_INTR && hc->do_split
++		    && !hc->complete_split) {
++			switch (hfnum.b.frnum & 0x7) {
++			case 7:
++				core_if->hfnum_7_samples++;
++				core_if->hfnum_7_frrem_accum += hfnum.b.frrem;
++				break;
++			case 0:
++				core_if->hfnum_0_samples++;
++				core_if->hfnum_0_frrem_accum += hfnum.b.frrem;
++				break;
++			default:
++				core_if->hfnum_other_samples++;
++				core_if->hfnum_other_frrem_accum +=
++				    hfnum.b.frrem;
++				break;
++			}
++		}
++#endif
++	}
++}
++
++#ifdef DEBUG
++void hc_xfer_timeout(void *ptr)
++{
++	hc_xfer_info_t *xfer_info = NULL;
++	int hc_num = 0;
++
++	if (ptr)
++		xfer_info = (hc_xfer_info_t *) ptr;
++
++	if (!xfer_info->hc) {
++		DWC_ERROR("xfer_info->hc = %p\n", xfer_info->hc);
++		return;
++	}
++
++	hc_num = xfer_info->hc->hc_num;
++	DWC_WARN("%s: timeout on channel %d\n", __func__, hc_num);
++	DWC_WARN("	start_hcchar_val 0x%08x\n",
++		 xfer_info->core_if->start_hcchar_val[hc_num]);
++}
++#endif
++
++void ep_xfer_timeout(void *ptr)
++{
++	ep_xfer_info_t *xfer_info = NULL;
++	int ep_num = 0;
++	dctl_data_t dctl = {.d32 = 0 };
++	gintsts_data_t gintsts = {.d32 = 0 };
++	gintmsk_data_t gintmsk = {.d32 = 0 };
++
++	if (ptr)
++		xfer_info = (ep_xfer_info_t *) ptr;
++
++	if (!xfer_info->ep) {
++		DWC_ERROR("xfer_info->ep = %p\n", xfer_info->ep);
++		return;
++	}
++
++	ep_num = xfer_info->ep->num;
++	DWC_WARN("%s: timeout on endpoit %d\n", __func__, ep_num);
++	/* Put the sate to 2 as it was time outed */
++	xfer_info->state = 2;
++
++	dctl.d32 =
++	    DWC_READ_REG32(&xfer_info->core_if->dev_if->dev_global_regs->dctl);
++	gintsts.d32 =
++	    DWC_READ_REG32(&xfer_info->core_if->core_global_regs->gintsts);
++	gintmsk.d32 =
++	    DWC_READ_REG32(&xfer_info->core_if->core_global_regs->gintmsk);
++
++	if (!gintmsk.b.goutnakeff) {
++		/* Unmask it */
++		gintmsk.b.goutnakeff = 1;
++		DWC_WRITE_REG32(&xfer_info->core_if->core_global_regs->gintmsk,
++				gintmsk.d32);
++
++	}
++
++	if (!gintsts.b.goutnakeff) {
++		dctl.b.sgoutnak = 1;
++	}
++	DWC_WRITE_REG32(&xfer_info->core_if->dev_if->dev_global_regs->dctl,
++			dctl.d32);
++
++}
++
++void set_pid_isoc(dwc_hc_t * hc)
++{
++	/* Set up the initial PID for the transfer. */
++	if (hc->speed == DWC_OTG_EP_SPEED_HIGH) {
++		if (hc->ep_is_in) {
++			if (hc->multi_count == 1) {
++				hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
++			} else if (hc->multi_count == 2) {
++				hc->data_pid_start = DWC_OTG_HC_PID_DATA1;
++			} else {
++				hc->data_pid_start = DWC_OTG_HC_PID_DATA2;
++			}
++		} else {
++			if (hc->multi_count == 1) {
++				hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
++			} else {
++				hc->data_pid_start = DWC_OTG_HC_PID_MDATA;
++			}
++		}
++	} else {
++		hc->data_pid_start = DWC_OTG_HC_PID_DATA0;
++	}
++}
++
++/**
++ * This function does the setup for a data transfer for a host channel and
++ * starts the transfer. May be called in either Slave mode or DMA mode. In
++ * Slave mode, the caller must ensure that there is sufficient space in the
++ * request queue and Tx Data FIFO.
++ *
++ * For an OUT transfer in Slave mode, it loads a data packet into the
++ * appropriate FIFO. If necessary, additional data packets will be loaded in
++ * the Host ISR.
++ *
++ * For an IN transfer in Slave mode, a data packet is requested. The data
++ * packets are unloaded from the Rx FIFO in the Host ISR. If necessary,
++ * additional data packets are requested in the Host ISR.
++ *
++ * For a PING transfer in Slave mode, the Do Ping bit is set in the HCTSIZ
++ * register along with a packet count of 1 and the channel is enabled. This
++ * causes a single PING transaction to occur. Other fields in HCTSIZ are
++ * simply set to 0 since no data transfer occurs in this case.
++ *
++ * For a PING transfer in DMA mode, the HCTSIZ register is initialized with
++ * all the information required to perform the subsequent data transfer. In
++ * addition, the Do Ping bit is set in the HCTSIZ register. In this case, the
++ * controller performs the entire PING protocol, then starts the data
++ * transfer.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param hc Information needed to initialize the host channel. The xfer_len
++ * value may be reduced to accommodate the max widths of the XferSize and
++ * PktCnt fields in the HCTSIZn register. The multi_count value may be changed
++ * to reflect the final xfer_len value.
++ */
++void dwc_otg_hc_start_transfer(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	hcchar_data_t hcchar;
++	hctsiz_data_t hctsiz;
++	uint16_t num_packets;
++	uint32_t max_hc_xfer_size = core_if->core_params->max_transfer_size;
++	uint16_t max_hc_pkt_count = core_if->core_params->max_packet_count;
++	dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++
++	hctsiz.d32 = 0;
++
++	if (hc->do_ping) {
++		if (!core_if->dma_enable) {
++			dwc_otg_hc_do_ping(core_if, hc);
++			hc->xfer_started = 1;
++			return;
++		} else {
++			hctsiz.b.dopng = 1;
++		}
++	}
++
++	if (hc->do_split) {
++		num_packets = 1;
++
++		if (hc->complete_split && !hc->ep_is_in) {
++			/* For CSPLIT OUT Transfer, set the size to 0 so the
++			 * core doesn't expect any data written to the FIFO */
++			hc->xfer_len = 0;
++		} else if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) {
++			hc->xfer_len = hc->max_packet;
++		} else if (!hc->ep_is_in && (hc->xfer_len > 188)) {
++			hc->xfer_len = 188;
++		}
++
++		hctsiz.b.xfersize = hc->xfer_len;
++	} else {
++		/*
++		 * Ensure that the transfer length and packet count will fit
++		 * in the widths allocated for them in the HCTSIZn register.
++		 */
++		if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++		    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++			/*
++			 * Make sure the transfer size is no larger than one
++			 * (micro)frame's worth of data. (A check was done
++			 * when the periodic transfer was accepted to ensure
++			 * that a (micro)frame's worth of data can be
++			 * programmed into a channel.)
++			 */
++			uint32_t max_periodic_len =
++			    hc->multi_count * hc->max_packet;
++			if (hc->xfer_len > max_periodic_len) {
++				hc->xfer_len = max_periodic_len;
++			} else {
++			}
++		} else if (hc->xfer_len > max_hc_xfer_size) {
++			/* Make sure that xfer_len is a multiple of max packet size. */
++			hc->xfer_len = max_hc_xfer_size - hc->max_packet + 1;
++		}
++
++		if (hc->xfer_len > 0) {
++			num_packets =
++			    (hc->xfer_len + hc->max_packet -
++			     1) / hc->max_packet;
++			if (num_packets > max_hc_pkt_count) {
++				num_packets = max_hc_pkt_count;
++				hc->xfer_len = num_packets * hc->max_packet;
++			}
++		} else {
++			/* Need 1 packet for transfer length of 0. */
++			num_packets = 1;
++		}
++
++		if (hc->ep_is_in) {
++			/* Always program an integral # of max packets for IN transfers. */
++			hc->xfer_len = num_packets * hc->max_packet;
++		}
++
++		if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++		    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++			/*
++			 * Make sure that the multi_count field matches the
++			 * actual transfer length.
++			 */
++			hc->multi_count = num_packets;
++		}
++
++		if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)
++			set_pid_isoc(hc);
++
++		hctsiz.b.xfersize = hc->xfer_len;
++	}
++
++	hc->start_pkt_count = num_packets;
++	hctsiz.b.pktcnt = num_packets;
++	hctsiz.b.pid = hc->data_pid_start;
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num);
++	DWC_DEBUGPL(DBG_HCDV, "	 Xfer Size: %d\n", hctsiz.b.xfersize);
++	DWC_DEBUGPL(DBG_HCDV, "	 Num Pkts: %d\n", hctsiz.b.pktcnt);
++	DWC_DEBUGPL(DBG_HCDV, "	 Start PID: %d\n", hctsiz.b.pid);
++
++	if (core_if->dma_enable) {
++		dwc_dma_t dma_addr;
++		if (hc->align_buff) {
++			dma_addr = hc->align_buff;
++		} else {
++			dma_addr = ((unsigned long)hc->xfer_buff & 0xffffffff);
++		}
++		DWC_WRITE_REG32(&hc_regs->hcdma, dma_addr);
++	}
++
++	/* Start the split */
++	if (hc->do_split) {
++		hcsplt_data_t hcsplt;
++		hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt);
++		hcsplt.b.spltena = 1;
++		DWC_WRITE_REG32(&hc_regs->hcsplt, hcsplt.d32);
++	}
++
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.multicnt = hc->multi_count;
++	hc_set_even_odd_frame(core_if, hc, &hcchar);
++#ifdef DEBUG
++	core_if->start_hcchar_val[hc->hc_num] = hcchar.d32;
++	if (hcchar.b.chdis) {
++		DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n",
++			 __func__, hc->hc_num, hcchar.d32);
++	}
++#endif
++
++	/* Set host channel enable after all other setup is complete. */
++	hcchar.b.chen = 1;
++	hcchar.b.chdis = 0;
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	hc->xfer_started = 1;
++	hc->requests++;
++
++	if (!core_if->dma_enable && !hc->ep_is_in && hc->xfer_len > 0) {
++		/* Load OUT packet into the appropriate Tx FIFO. */
++		dwc_otg_hc_write_packet(core_if, hc);
++	}
++#ifdef DEBUG
++	if (hc->ep_type != DWC_OTG_EP_TYPE_INTR) {
++                DWC_DEBUGPL(DBG_HCDV, "transfer %d from core_if %p\n",
++                            hc->hc_num, core_if);//GRAYG
++		core_if->hc_xfer_info[hc->hc_num].core_if = core_if;
++		core_if->hc_xfer_info[hc->hc_num].hc = hc;
++
++		/* Start a timer for this transfer. */
++		DWC_TIMER_SCHEDULE(core_if->hc_xfer_timer[hc->hc_num], 10000);
++	}
++#endif
++}
++
++/**
++ * This function does the setup for a data transfer for a host channel
++ * and starts the transfer in Descriptor DMA mode.
++ *
++ * Initializes HCTSIZ register. For a PING transfer the Do Ping bit is set.
++ * Sets PID and NTD values. For periodic transfers
++ * initializes SCHED_INFO field with micro-frame bitmap.
++ *
++ * Initializes HCDMA register with descriptor list address and CTD value
++ * then starts the transfer via enabling the channel.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param hc Information needed to initialize the host channel.
++ */
++void dwc_otg_hc_start_transfer_ddma(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++	hcchar_data_t hcchar;
++	hctsiz_data_t hctsiz;
++	hcdma_data_t hcdma;
++
++	hctsiz.d32 = 0;
++
++	if (hc->do_ping)
++		hctsiz.b_ddma.dopng = 1;
++
++	if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)
++		set_pid_isoc(hc);
++
++	/* Packet Count and Xfer Size are not used in Descriptor DMA mode */
++	hctsiz.b_ddma.pid = hc->data_pid_start;
++	hctsiz.b_ddma.ntd = hc->ntd - 1;	/* 0 - 1 descriptor, 1 - 2 descriptors, etc. */
++	hctsiz.b_ddma.schinfo = hc->schinfo;	/* Non-zero only for high-speed interrupt endpoints */
++
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num);
++	DWC_DEBUGPL(DBG_HCDV, "	 Start PID: %d\n", hctsiz.b.pid);
++	DWC_DEBUGPL(DBG_HCDV, "	 NTD: %d\n", hctsiz.b_ddma.ntd);
++
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	hcdma.d32 = 0;
++	hcdma.b.dma_addr = ((uint32_t) hc->desc_list_addr) >> 11;
++
++	/* Always start from first descriptor. */
++	hcdma.b.ctd = 0;
++	DWC_WRITE_REG32(&hc_regs->hcdma, hcdma.d32);
++
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.multicnt = hc->multi_count;
++
++#ifdef DEBUG
++	core_if->start_hcchar_val[hc->hc_num] = hcchar.d32;
++	if (hcchar.b.chdis) {
++		DWC_WARN("%s: chdis set, channel %d, hcchar 0x%08x\n",
++			 __func__, hc->hc_num, hcchar.d32);
++	}
++#endif
++
++	/* Set host channel enable after all other setup is complete. */
++	hcchar.b.chen = 1;
++	hcchar.b.chdis = 0;
++
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	hc->xfer_started = 1;
++	hc->requests++;
++
++#ifdef DEBUG
++	if ((hc->ep_type != DWC_OTG_EP_TYPE_INTR)
++	    && (hc->ep_type != DWC_OTG_EP_TYPE_ISOC)) {
++                DWC_DEBUGPL(DBG_HCDV, "DMA transfer %d from core_if %p\n",
++                            hc->hc_num, core_if);//GRAYG
++		core_if->hc_xfer_info[hc->hc_num].core_if = core_if;
++		core_if->hc_xfer_info[hc->hc_num].hc = hc;
++		/* Start a timer for this transfer. */
++		DWC_TIMER_SCHEDULE(core_if->hc_xfer_timer[hc->hc_num], 10000);
++	}
++#endif
++
++}
++
++/**
++ * This function continues a data transfer that was started by previous call
++ * to <code>dwc_otg_hc_start_transfer</code>. The caller must ensure there is
++ * sufficient space in the request queue and Tx Data FIFO. This function
++ * should only be called in Slave mode. In DMA mode, the controller acts
++ * autonomously to complete transfers programmed to a host channel.
++ *
++ * For an OUT transfer, a new data packet is loaded into the appropriate FIFO
++ * if there is any data remaining to be queued. For an IN transfer, another
++ * data packet is always requested. For the SETUP phase of a control transfer,
++ * this function does nothing.
++ *
++ * @return 1 if a new request is queued, 0 if no more requests are required
++ * for this transfer.
++ */
++int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num);
++
++	if (hc->do_split) {
++		/* SPLITs always queue just once per channel */
++		return 0;
++	} else if (hc->data_pid_start == DWC_OTG_HC_PID_SETUP) {
++		/* SETUPs are queued only once since they can't be NAKed. */
++		return 0;
++	} else if (hc->ep_is_in) {
++		/*
++		 * Always queue another request for other IN transfers. If
++		 * back-to-back INs are issued and NAKs are received for both,
++		 * the driver may still be processing the first NAK when the
++		 * second NAK is received. When the interrupt handler clears
++		 * the NAK interrupt for the first NAK, the second NAK will
++		 * not be seen. So we can't depend on the NAK interrupt
++		 * handler to requeue a NAKed request. Instead, IN requests
++		 * are issued each time this function is called. When the
++		 * transfer completes, the extra requests for the channel will
++		 * be flushed.
++		 */
++		hcchar_data_t hcchar;
++		dwc_otg_hc_regs_t *hc_regs =
++		    core_if->host_if->hc_regs[hc->hc_num];
++
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++		hc_set_even_odd_frame(core_if, hc, &hcchar);
++		hcchar.b.chen = 1;
++		hcchar.b.chdis = 0;
++		DWC_DEBUGPL(DBG_HCDV, "	 IN xfer: hcchar = 0x%08x\n",
++			    hcchar.d32);
++		DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++		hc->requests++;
++		return 1;
++	} else {
++		/* OUT transfers. */
++		if (hc->xfer_count < hc->xfer_len) {
++			if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++			    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++				hcchar_data_t hcchar;
++				dwc_otg_hc_regs_t *hc_regs;
++				hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++				hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++				hc_set_even_odd_frame(core_if, hc, &hcchar);
++			}
++
++			/* Load OUT packet into the appropriate Tx FIFO. */
++			dwc_otg_hc_write_packet(core_if, hc);
++			hc->requests++;
++			return 1;
++		} else {
++			return 0;
++		}
++	}
++}
++
++/**
++ * Starts a PING transfer. This function should only be called in Slave mode.
++ * The Do Ping bit is set in the HCTSIZ register, then the channel is enabled.
++ */
++void dwc_otg_hc_do_ping(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	hcchar_data_t hcchar;
++	hctsiz_data_t hctsiz;
++	dwc_otg_hc_regs_t *hc_regs = core_if->host_if->hc_regs[hc->hc_num];
++
++	DWC_DEBUGPL(DBG_HCDV, "%s: Channel %d\n", __func__, hc->hc_num);
++
++	hctsiz.d32 = 0;
++	hctsiz.b.dopng = 1;
++	hctsiz.b.pktcnt = 1;
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.chen = 1;
++	hcchar.b.chdis = 0;
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++}
++
++/*
++ * This function writes a packet into the Tx FIFO associated with the Host
++ * Channel. For a channel associated with a non-periodic EP, the non-periodic
++ * Tx FIFO is written. For a channel associated with a periodic EP, the
++ * periodic Tx FIFO is written. This function should only be called in Slave
++ * mode.
++ *
++ * Upon return the xfer_buff and xfer_count fields in _hc are incremented by
++ * then number of bytes written to the Tx FIFO.
++ */
++void dwc_otg_hc_write_packet(dwc_otg_core_if_t * core_if, dwc_hc_t * hc)
++{
++	uint32_t i;
++	uint32_t remaining_count;
++	uint32_t byte_count;
++	uint32_t dword_count;
++
++	uint32_t *data_buff = (uint32_t *) (hc->xfer_buff);
++	uint32_t *data_fifo = core_if->data_fifo[hc->hc_num];
++
++	remaining_count = hc->xfer_len - hc->xfer_count;
++	if (remaining_count > hc->max_packet) {
++		byte_count = hc->max_packet;
++	} else {
++		byte_count = remaining_count;
++	}
++
++	dword_count = (byte_count + 3) / 4;
++
++	if ((((unsigned long)data_buff) & 0x3) == 0) {
++		/* xfer_buff is DWORD aligned. */
++		for (i = 0; i < dword_count; i++, data_buff++) {
++			DWC_WRITE_REG32(data_fifo, *data_buff);
++		}
++	} else {
++		/* xfer_buff is not DWORD aligned. */
++		for (i = 0; i < dword_count; i++, data_buff++) {
++			uint32_t data;
++			data =
++			    (data_buff[0] | data_buff[1] << 8 | data_buff[2] <<
++			     16 | data_buff[3] << 24);
++			DWC_WRITE_REG32(data_fifo, data);
++		}
++	}
++
++	hc->xfer_count += byte_count;
++	hc->xfer_buff += byte_count;
++}
++
++/**
++ * Gets the current USB frame number. This is the frame number from the last
++ * SOF packet.
++ */
++uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t * core_if)
++{
++	dsts_data_t dsts;
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++
++	/* read current frame/microframe number from DSTS register */
++	return dsts.b.soffn;
++}
++
++/**
++ * Calculates and gets the frame Interval value of HFIR register according PHY
++ * type and speed.The application can modify a value of HFIR register only after
++ * the Port Enable bit of the Host Port Control and Status register
++ * (HPRT.PrtEnaPort) has been set.
++*/
++
++uint32_t calc_frame_interval(dwc_otg_core_if_t * core_if)
++{
++	gusbcfg_data_t usbcfg;
++	hwcfg2_data_t hwcfg2;
++	hprt0_data_t hprt0;
++	int clock = 60;		// default value
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	hwcfg2.d32 = DWC_READ_REG32(&core_if->core_global_regs->ghwcfg2);
++	hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
++	if (!usbcfg.b.physel && usbcfg.b.ulpi_utmi_sel && !usbcfg.b.phyif)
++		clock = 60;
++	if (usbcfg.b.physel && hwcfg2.b.fs_phy_type == 3)
++		clock = 48;
++	if (!usbcfg.b.phylpwrclksel && !usbcfg.b.physel &&
++	    !usbcfg.b.ulpi_utmi_sel && usbcfg.b.phyif)
++		clock = 30;
++	if (!usbcfg.b.phylpwrclksel && !usbcfg.b.physel &&
++	    !usbcfg.b.ulpi_utmi_sel && !usbcfg.b.phyif)
++		clock = 60;
++	if (usbcfg.b.phylpwrclksel && !usbcfg.b.physel &&
++	    !usbcfg.b.ulpi_utmi_sel && usbcfg.b.phyif)
++		clock = 48;
++	if (usbcfg.b.physel && !usbcfg.b.phyif && hwcfg2.b.fs_phy_type == 2)
++		clock = 48;
++	if (usbcfg.b.physel && hwcfg2.b.fs_phy_type == 1)
++		clock = 48;
++	if (hprt0.b.prtspd == 0)
++		/* High speed case */
++		return 125 * clock - 1;
++	else
++		/* FS/LS case */
++		return 1000 * clock - 1;
++}
++
++/**
++ * This function reads a setup packet from the Rx FIFO into the destination
++ * buffer. This function is called from the Rx Status Queue Level (RxStsQLvl)
++ * Interrupt routine when a SETUP packet has been received in Slave mode.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dest Destination buffer for packet data.
++ */
++void dwc_otg_read_setup_packet(dwc_otg_core_if_t * core_if, uint32_t * dest)
++{
++	device_grxsts_data_t status;
++	/* Get the 8 bytes of a setup transaction data */
++
++	/* Pop 2 DWORDS off the receive data FIFO into memory */
++	dest[0] = DWC_READ_REG32(core_if->data_fifo[0]);
++	dest[1] = DWC_READ_REG32(core_if->data_fifo[0]);
++	if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++		status.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->grxstsp);
++		DWC_DEBUGPL(DBG_ANY,
++			    "EP:%d BCnt:%d " "pktsts:%x Frame:%d(0x%0x)\n",
++			    status.b.epnum, status.b.bcnt, status.b.pktsts,
++			    status.b.fn, status.b.fn);
++	}
++}
++
++/**
++ * This function enables EP0 OUT to receive SETUP packets and configures EP0
++ * IN for transmitting packets. It is normally called when the
++ * "Enumeration Done" interrupt occurs.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP0 data.
++ */
++void dwc_otg_ep0_activate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dsts_data_t dsts;
++	depctl_data_t diepctl;
++	depctl_data_t doepctl;
++	dctl_data_t dctl = {.d32 = 0 };
++
++	ep->stp_rollover = 0;
++	/* Read the Device Status and Endpoint 0 Control registers */
++	dsts.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dsts);
++	diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl);
++	doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl);
++
++	/* Set the MPS of the IN EP based on the enumeration speed */
++	switch (dsts.b.enumspd) {
++	case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
++	case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
++	case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ:
++		diepctl.b.mps = DWC_DEP0CTL_MPS_64;
++		break;
++	case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ:
++		diepctl.b.mps = DWC_DEP0CTL_MPS_8;
++		break;
++	}
++
++	DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32);
++
++	/* Enable OUT EP for receive */
++	if (core_if->snpsid <= OTG_CORE_REV_2_94a) {
++	doepctl.b.epena = 1;
++	DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32);
++	}
++#ifdef VERBOSE
++	DWC_DEBUGPL(DBG_PCDV, "doepctl0=%0x\n",
++		    DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl));
++	DWC_DEBUGPL(DBG_PCDV, "diepctl0=%0x\n",
++		    DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl));
++#endif
++	dctl.b.cgnpinnak = 1;
++
++	DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
++	DWC_DEBUGPL(DBG_PCDV, "dctl=%0x\n",
++		    DWC_READ_REG32(&dev_if->dev_global_regs->dctl));
++
++}
++
++/**
++ * This function activates an EP.  The Device EP control register for
++ * the EP is configured as defined in the ep structure. Note: This
++ * function is not used for EP0.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to activate.
++ */
++void dwc_otg_ep_activate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	depctl_data_t depctl;
++	volatile uint32_t *addr;
++	daint_data_t daintmsk = {.d32 = 0 };
++	dcfg_data_t dcfg;
++	uint8_t i;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s() EP%d-%s\n", __func__, ep->num,
++		    (ep->is_in ? "IN" : "OUT"));
++
++#ifdef DWC_UTE_PER_IO
++	ep->xiso_frame_num = 0xFFFFFFFF;
++	ep->xiso_active_xfers = 0;
++	ep->xiso_queued_xfers = 0;
++#endif
++	/* Read DEPCTLn register */
++	if (ep->is_in == 1) {
++		addr = &dev_if->in_ep_regs[ep->num]->diepctl;
++		daintmsk.ep.in = 1 << ep->num;
++	} else {
++		addr = &dev_if->out_ep_regs[ep->num]->doepctl;
++		daintmsk.ep.out = 1 << ep->num;
++	}
++
++	/* If the EP is already active don't change the EP Control
++	 * register. */
++	depctl.d32 = DWC_READ_REG32(addr);
++	if (!depctl.b.usbactep) {
++		depctl.b.mps = ep->maxpacket;
++		depctl.b.eptype = ep->type;
++		depctl.b.txfnum = ep->tx_fifo_num;
++
++		if (ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			depctl.b.setd0pid = 1;	// ???
++		} else {
++			depctl.b.setd0pid = 1;
++		}
++		depctl.b.usbactep = 1;
++
++		/* Update nextep_seq array and EPMSCNT in DCFG*/
++		if (!(depctl.b.eptype & 1) && (ep->is_in == 1)) {	// NP IN EP
++			for (i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++				if (core_if->nextep_seq[i] == core_if->first_in_nextep_seq)
++				break;
++			}
++			core_if->nextep_seq[i] = ep->num;
++			core_if->nextep_seq[ep->num] = core_if->first_in_nextep_seq;
++			depctl.b.nextep = core_if->nextep_seq[ep->num];
++			dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg);
++			dcfg.b.epmscnt++;
++			DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++			DWC_DEBUGPL(DBG_PCDV,
++				    "%s first_in_nextep_seq= %2d; nextep_seq[]:\n",
++				__func__, core_if->first_in_nextep_seq);
++			for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++				DWC_DEBUGPL(DBG_PCDV, "%2d\n",
++					    core_if->nextep_seq[i]);
++			}
++
++		}
++
++
++		DWC_WRITE_REG32(addr, depctl.d32);
++		DWC_DEBUGPL(DBG_PCDV, "DEPCTL=%08x\n", DWC_READ_REG32(addr));
++	}
++
++	/* Enable the Interrupt for this EP */
++	if (core_if->multiproc_int_enable) {
++		if (ep->is_in == 1) {
++			diepmsk_data_t diepmsk = {.d32 = 0 };
++			diepmsk.b.xfercompl = 1;
++			diepmsk.b.timeout = 1;
++			diepmsk.b.epdisabled = 1;
++			diepmsk.b.ahberr = 1;
++			diepmsk.b.intknepmis = 1;
++			if (!core_if->en_multiple_tx_fifo && core_if->dma_enable)
++				diepmsk.b.intknepmis = 0;
++			diepmsk.b.txfifoundrn = 1;	//?????
++			if (ep->type == DWC_OTG_EP_TYPE_ISOC) {
++				diepmsk.b.nak = 1;
++			}
++
++
++
++/*
++			if (core_if->dma_desc_enable) {
++				diepmsk.b.bna = 1;
++			}
++*/
++/*
++			if (core_if->dma_enable) {
++				doepmsk.b.nak = 1;
++			}
++*/
++			DWC_WRITE_REG32(&dev_if->dev_global_regs->
++					diepeachintmsk[ep->num], diepmsk.d32);
++
++		} else {
++			doepmsk_data_t doepmsk = {.d32 = 0 };
++			doepmsk.b.xfercompl = 1;
++			doepmsk.b.ahberr = 1;
++			doepmsk.b.epdisabled = 1;
++			if (ep->type == DWC_OTG_EP_TYPE_ISOC)
++				doepmsk.b.outtknepdis = 1;
++
++/*
++
++			if (core_if->dma_desc_enable) {
++				doepmsk.b.bna = 1;
++			}
++*/
++/*
++			doepmsk.b.babble = 1;
++			doepmsk.b.nyet = 1;
++			doepmsk.b.nak = 1;
++*/
++			DWC_WRITE_REG32(&dev_if->dev_global_regs->
++					doepeachintmsk[ep->num], doepmsk.d32);
++		}
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->deachintmsk,
++				 0, daintmsk.d32);
++	} else {
++		if (ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			if (ep->is_in) {
++				diepmsk_data_t diepmsk = {.d32 = 0 };
++				diepmsk.b.nak = 1;
++				DWC_MODIFY_REG32(&dev_if->dev_global_regs->diepmsk, 0, diepmsk.d32);
++			} else {
++				doepmsk_data_t doepmsk = {.d32 = 0 };
++				doepmsk.b.outtknepdis = 1;
++				DWC_MODIFY_REG32(&dev_if->dev_global_regs->doepmsk, 0, doepmsk.d32);
++			}
++		}
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->daintmsk,
++				 0, daintmsk.d32);
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "DAINTMSK=%0x\n",
++		    DWC_READ_REG32(&dev_if->dev_global_regs->daintmsk));
++
++	ep->stall_clear_flag = 0;
++
++	return;
++}
++
++/**
++ * This function deactivates an EP. This is done by clearing the USB Active
++ * EP bit in the Device EP control register. Note: This function is not used
++ * for EP0. EP0 cannot be deactivated.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to deactivate.
++ */
++void dwc_otg_ep_deactivate(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl = {.d32 = 0 };
++	volatile uint32_t *addr;
++	daint_data_t daintmsk = {.d32 = 0 };
++	dcfg_data_t dcfg;
++	uint8_t i = 0;
++
++#ifdef DWC_UTE_PER_IO
++	ep->xiso_frame_num = 0xFFFFFFFF;
++	ep->xiso_active_xfers = 0;
++	ep->xiso_queued_xfers = 0;
++#endif
++
++	/* Read DEPCTLn register */
++	if (ep->is_in == 1) {
++		addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl;
++		daintmsk.ep.in = 1 << ep->num;
++	} else {
++		addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl;
++		daintmsk.ep.out = 1 << ep->num;
++	}
++
++	depctl.d32 = DWC_READ_REG32(addr);
++
++	depctl.b.usbactep = 0;
++
++	/* Update nextep_seq array and EPMSCNT in DCFG*/
++	if (!(depctl.b.eptype & 1) && ep->is_in == 1) {	// NP EP IN
++		for (i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++			if (core_if->nextep_seq[i] == ep->num)
++			break;
++		}
++		core_if->nextep_seq[i] = core_if->nextep_seq[ep->num];
++		if (core_if->first_in_nextep_seq == ep->num)
++			core_if->first_in_nextep_seq = i;
++		core_if->nextep_seq[ep->num] = 0xff;
++		depctl.b.nextep = 0;
++		dcfg.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++		dcfg.b.epmscnt--;
++		DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg,
++				dcfg.d32);
++
++		DWC_DEBUGPL(DBG_PCDV,
++			    "%s first_in_nextep_seq= %2d; nextep_seq[]:\n",
++				__func__, core_if->first_in_nextep_seq);
++			for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++				DWC_DEBUGPL(DBG_PCDV, "%2d\n", core_if->nextep_seq[i]);
++			}
++	}
++
++	if (ep->is_in == 1)
++		depctl.b.txfnum = 0;
++
++	if (core_if->dma_desc_enable)
++		depctl.b.epdis = 1;
++
++	DWC_WRITE_REG32(addr, depctl.d32);
++	depctl.d32 = DWC_READ_REG32(addr);
++	if (core_if->dma_enable && ep->type == DWC_OTG_EP_TYPE_ISOC
++	    && depctl.b.epena) {
++		depctl_data_t depctl = {.d32 = 0};
++		if (ep->is_in) {
++			diepint_data_t diepint = {.d32 = 0};
++
++			depctl.b.snak = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++					diepctl, depctl.d32);
++			do {
++				dwc_udelay(10);
++				diepint.d32 =
++				    DWC_READ_REG32(&core_if->
++						   dev_if->in_ep_regs[ep->num]->
++						   diepint);
++			} while (!diepint.b.inepnakeff);
++			diepint.b.inepnakeff = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++					diepint, diepint.d32);
++			depctl.d32 = 0;
++			depctl.b.epdis = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++					diepctl, depctl.d32);
++			do {
++				dwc_udelay(10);
++				diepint.d32 =
++				    DWC_READ_REG32(&core_if->
++						   dev_if->in_ep_regs[ep->num]->
++						   diepint);
++			} while (!diepint.b.epdisabled);
++			diepint.b.epdisabled = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++					diepint, diepint.d32);
++		} else {
++			dctl_data_t dctl = {.d32 = 0};
++			gintmsk_data_t gintsts = {.d32 = 0};
++			doepint_data_t doepint = {.d32 = 0};
++			dctl.b.sgoutnak = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++					 dctl, 0, dctl.d32);
++			do {
++				dwc_udelay(10);
++				gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++			} while (!gintsts.b.goutnakeff);
++			gintsts.d32 = 0;
++			gintsts.b.goutnakeff = 1;
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++			depctl.d32 = 0;
++			depctl.b.epdis = 1;
++			depctl.b.snak = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]->doepctl, depctl.d32);
++			do
++			{
++				dwc_udelay(10);
++				doepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++											out_ep_regs[ep->num]->doepint);
++			} while (!doepint.b.epdisabled);
++
++			doepint.b.epdisabled = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]->doepint, doepint.d32);
++
++			dctl.d32 = 0;
++			dctl.b.cgoutnak = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++		}
++	}
++
++	/* Disable the Interrupt for this EP */
++	if (core_if->multiproc_int_enable) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->deachintmsk,
++				 daintmsk.d32, 0);
++
++		if (ep->is_in == 1) {
++			DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->
++					diepeachintmsk[ep->num], 0);
++		} else {
++			DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->
++					doepeachintmsk[ep->num], 0);
++		}
++	} else {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->daintmsk,
++				 daintmsk.d32, 0);
++	}
++
++}
++
++/**
++ * This function initializes dma descriptor chain.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ */
++static void init_dma_desc_chain(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	uint32_t offset;
++	uint32_t xfer_est;
++	int i;
++	unsigned maxxfer_local, total_len;
++
++	if (!ep->is_in && ep->type == DWC_OTG_EP_TYPE_INTR &&
++					(ep->maxpacket%4)) {
++		maxxfer_local = ep->maxpacket;
++		total_len = ep->xfer_len;
++	} else {
++		maxxfer_local = ep->maxxfer;
++		total_len = ep->total_len;
++	}
++
++	ep->desc_cnt = (total_len / maxxfer_local) +
++            ((total_len % maxxfer_local) ? 1 : 0);
++
++	if (!ep->desc_cnt)
++		ep->desc_cnt = 1;
++
++	if (ep->desc_cnt > MAX_DMA_DESC_CNT)
++		ep->desc_cnt = MAX_DMA_DESC_CNT;
++
++	dma_desc = ep->desc_addr;
++	if (maxxfer_local == ep->maxpacket) {
++		if ((total_len % maxxfer_local) &&
++				(total_len/maxxfer_local < MAX_DMA_DESC_CNT)) {
++			xfer_est = (ep->desc_cnt - 1) * maxxfer_local +
++					(total_len % maxxfer_local);
++		} else
++			xfer_est = ep->desc_cnt * maxxfer_local;
++	} else
++		xfer_est = total_len;
++	offset = 0;
++	for (i = 0; i < ep->desc_cnt; ++i) {
++		/** DMA Descriptor Setup */
++		if (xfer_est > maxxfer_local) {
++			dma_desc->status.b.bs = BS_HOST_BUSY;
++			dma_desc->status.b.l = 0;
++			dma_desc->status.b.ioc = 0;
++			dma_desc->status.b.sp = 0;
++			dma_desc->status.b.bytes = maxxfer_local;
++			dma_desc->buf = ep->dma_addr + offset;
++			dma_desc->status.b.sts = 0;
++			dma_desc->status.b.bs = BS_HOST_READY;
++
++			xfer_est -= maxxfer_local;
++			offset += maxxfer_local;
++		} else {
++			dma_desc->status.b.bs = BS_HOST_BUSY;
++			dma_desc->status.b.l = 1;
++			dma_desc->status.b.ioc = 1;
++			if (ep->is_in) {
++				dma_desc->status.b.sp =
++				    (xfer_est %
++				     ep->maxpacket) ? 1 : ((ep->
++							    sent_zlp) ? 1 : 0);
++				dma_desc->status.b.bytes = xfer_est;
++			} else {
++				if (maxxfer_local == ep->maxpacket)
++					dma_desc->status.b.bytes = xfer_est;
++				else
++					dma_desc->status.b.bytes =
++						xfer_est + ((4 - (xfer_est & 0x3)) & 0x3);
++			}
++
++			dma_desc->buf = ep->dma_addr + offset;
++			dma_desc->status.b.sts = 0;
++			dma_desc->status.b.bs = BS_HOST_READY;
++		}
++		dma_desc++;
++	}
++}
++/**
++ * This function is called when to write ISOC data into appropriate dedicated
++ * periodic FIFO.
++ */
++static int32_t write_isoc_tx_fifo(dwc_otg_core_if_t * core_if, dwc_ep_t * dwc_ep)
++{
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dwc_otg_dev_in_ep_regs_t *ep_regs;
++	dtxfsts_data_t txstatus = {.d32 = 0 };
++	uint32_t len = 0;
++	int epnum = dwc_ep->num;
++	int dwords;
++
++	DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %d \n", epnum);
++
++	ep_regs = core_if->dev_if->in_ep_regs[epnum];
++
++	len = dwc_ep->xfer_len - dwc_ep->xfer_count;
++
++	if (len > dwc_ep->maxpacket) {
++		len = dwc_ep->maxpacket;
++	}
++
++	dwords = (len + 3) / 4;
++
++	/* While there is space in the queue and space in the FIFO and
++	 * More data to tranfer, Write packets to the Tx FIFO */
++	txstatus.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts);
++	DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32);
++
++	while (txstatus.b.txfspcavail > dwords &&
++	       dwc_ep->xfer_count < dwc_ep->xfer_len && dwc_ep->xfer_len != 0) {
++		/* Write the FIFO */
++		dwc_otg_ep_write_packet(core_if, dwc_ep, 0);
++
++		len = dwc_ep->xfer_len - dwc_ep->xfer_count;
++		if (len > dwc_ep->maxpacket) {
++			len = dwc_ep->maxpacket;
++		}
++
++		dwords = (len + 3) / 4;
++		txstatus.d32 =
++		    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts);
++		DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", epnum,
++			    txstatus.d32);
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum,
++		    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts));
++
++	return 1;
++}
++/**
++ * This function does the setup for a data transfer for an EP and
++ * starts the transfer. For an IN transfer, the packets will be
++ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers,
++ * the packets are unloaded from the Rx FIFO in the ISR.  the ISR.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ */
++
++void dwc_otg_ep_start_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl;
++	deptsiz_data_t deptsiz;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__);
++	DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d "
++		    "xfer_buff=%p start_xfer_buff=%p, total_len = %d\n",
++		    ep->num, (ep->is_in ? "IN" : "OUT"), ep->xfer_len,
++		    ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff,
++		    ep->total_len);
++	/* IN endpoint */
++	if (ep->is_in == 1) {
++		dwc_otg_dev_in_ep_regs_t *in_regs =
++		    core_if->dev_if->in_ep_regs[ep->num];
++
++		gnptxsts_data_t gtxstatus;
++
++		gtxstatus.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->gnptxsts);
++
++		if (core_if->en_multiple_tx_fifo == 0
++		    && gtxstatus.b.nptxqspcavail == 0 && !core_if->dma_enable) {
++#ifdef DEBUG
++			DWC_PRINTF("TX Queue Full (0x%0x)\n", gtxstatus.d32);
++#endif
++			return;
++		}
++
++		depctl.d32 = DWC_READ_REG32(&(in_regs->diepctl));
++		deptsiz.d32 = DWC_READ_REG32(&(in_regs->dieptsiz));
++
++		if (ep->maxpacket > ep->maxxfer / MAX_PKT_CNT)
++			ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ?
++				ep->maxxfer : (ep->total_len - ep->xfer_len);
++		else
++			ep->xfer_len += (MAX_PKT_CNT * ep->maxpacket < (ep->total_len - ep->xfer_len)) ?
++				 MAX_PKT_CNT * ep->maxpacket : (ep->total_len - ep->xfer_len);
++
++
++		/* Zero Length Packet? */
++		if ((ep->xfer_len - ep->xfer_count) == 0) {
++			deptsiz.b.xfersize = 0;
++			deptsiz.b.pktcnt = 1;
++		} else {
++			/* Program the transfer size and packet count
++			 *      as follows: xfersize = N * maxpacket +
++			 *      short_packet pktcnt = N + (short_packet
++			 *      exist ? 1 : 0)
++			 */
++			deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count;
++			deptsiz.b.pktcnt =
++			    (ep->xfer_len - ep->xfer_count - 1 +
++			     ep->maxpacket) / ep->maxpacket;
++			if (deptsiz.b.pktcnt > MAX_PKT_CNT) {
++				deptsiz.b.pktcnt = MAX_PKT_CNT;
++				deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket;
++			}
++			if (ep->type == DWC_OTG_EP_TYPE_ISOC)
++				deptsiz.b.mc = deptsiz.b.pktcnt;
++		}
++
++		/* Write the DMA register */
++		if (core_if->dma_enable) {
++			if (core_if->dma_desc_enable == 0) {
++				if (ep->type != DWC_OTG_EP_TYPE_ISOC)
++					deptsiz.b.mc = 1;
++				DWC_WRITE_REG32(&in_regs->dieptsiz,
++						deptsiz.d32);
++				DWC_WRITE_REG32(&(in_regs->diepdma),
++						(uint32_t) ep->dma_addr);
++			} else {
++#ifdef DWC_UTE_CFI
++				/* The descriptor chain should be already initialized by now */
++				if (ep->buff_mode != BM_STANDARD) {
++					DWC_WRITE_REG32(&in_regs->diepdma,
++							ep->descs_dma_addr);
++				} else {
++#endif
++					init_dma_desc_chain(core_if, ep);
++				/** DIEPDMAn Register write */
++					DWC_WRITE_REG32(&in_regs->diepdma,
++							ep->dma_desc_addr);
++#ifdef DWC_UTE_CFI
++				}
++#endif
++			}
++		} else {
++			DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32);
++			if (ep->type != DWC_OTG_EP_TYPE_ISOC) {
++				/**
++				 * Enable the Non-Periodic Tx FIFO empty interrupt,
++				 * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode,
++				 * the data will be written into the fifo by the ISR.
++				 */
++				if (core_if->en_multiple_tx_fifo == 0) {
++					intr_mask.b.nptxfempty = 1;
++					DWC_MODIFY_REG32
++					    (&core_if->core_global_regs->gintmsk,
++					     intr_mask.d32, intr_mask.d32);
++				} else {
++					/* Enable the Tx FIFO Empty Interrupt for this EP */
++					if (ep->xfer_len > 0) {
++						uint32_t fifoemptymsk = 0;
++						fifoemptymsk = 1 << ep->num;
++						DWC_MODIFY_REG32
++						    (&core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
++						     0, fifoemptymsk);
++
++					}
++				}
++			}  else {
++					 write_isoc_tx_fifo(core_if, ep);
++			}
++		}
++		if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable)
++			depctl.b.nextep = core_if->nextep_seq[ep->num];
++
++		if (ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			dsts_data_t dsts = {.d32 = 0};
++			if (ep->bInterval == 1) {
++				dsts.d32 =
++				    DWC_READ_REG32(&core_if->dev_if->
++						   dev_global_regs->dsts);
++				ep->frame_num = dsts.b.soffn + ep->bInterval;
++				if (ep->frame_num > 0x3FFF) {
++					ep->frm_overrun = 1;
++					ep->frame_num &= 0x3FFF;
++				} else
++					ep->frm_overrun = 0;
++				if (ep->frame_num & 0x1) {
++					depctl.b.setd1pid = 1;
++				} else {
++					depctl.b.setd0pid = 1;
++				}
++			}
++		}
++		/* EP enable, IN data in FIFO */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32);
++
++	} else {
++		/* OUT endpoint */
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++		    core_if->dev_if->out_ep_regs[ep->num];
++
++		depctl.d32 = DWC_READ_REG32(&(out_regs->doepctl));
++		deptsiz.d32 = DWC_READ_REG32(&(out_regs->doeptsiz));
++
++		if (!core_if->dma_desc_enable) {
++			if (ep->maxpacket > ep->maxxfer / MAX_PKT_CNT)
++				ep->xfer_len += (ep->maxxfer < (ep->total_len - ep->xfer_len)) ?
++				ep->maxxfer : (ep->total_len - ep->xfer_len);
++                else
++					ep->xfer_len += (MAX_PKT_CNT * ep->maxpacket < (ep->total_len
++					- ep->xfer_len)) ? MAX_PKT_CNT * ep->maxpacket : (ep->total_len - ep->xfer_len);
++		}
++
++		/* Program the transfer size and packet count as follows:
++		 *
++		 *      pktcnt = N
++		 *      xfersize = N * maxpacket
++		 */
++		if ((ep->xfer_len - ep->xfer_count) == 0) {
++			/* Zero Length Packet */
++			deptsiz.b.xfersize = ep->maxpacket;
++			deptsiz.b.pktcnt = 1;
++		} else {
++			deptsiz.b.pktcnt =
++			    (ep->xfer_len - ep->xfer_count +
++			     (ep->maxpacket - 1)) / ep->maxpacket;
++			if (deptsiz.b.pktcnt > MAX_PKT_CNT) {
++				deptsiz.b.pktcnt = MAX_PKT_CNT;
++			}
++			if (!core_if->dma_desc_enable) {
++				ep->xfer_len =
++					deptsiz.b.pktcnt * ep->maxpacket + ep->xfer_count;
++			}
++			deptsiz.b.xfersize = ep->xfer_len - ep->xfer_count;
++		}
++
++		DWC_DEBUGPL(DBG_PCDV, "ep%d xfersize=%d pktcnt=%d\n",
++			    ep->num, deptsiz.b.xfersize, deptsiz.b.pktcnt);
++
++		if (core_if->dma_enable) {
++			if (!core_if->dma_desc_enable) {
++				DWC_WRITE_REG32(&out_regs->doeptsiz,
++						deptsiz.d32);
++
++				DWC_WRITE_REG32(&(out_regs->doepdma),
++						(uint32_t) ep->dma_addr);
++			} else {
++#ifdef DWC_UTE_CFI
++				/* The descriptor chain should be already initialized by now */
++				if (ep->buff_mode != BM_STANDARD) {
++					DWC_WRITE_REG32(&out_regs->doepdma,
++							ep->descs_dma_addr);
++				} else {
++#endif
++					/** This is used for interrupt out transfers*/
++					if (!ep->xfer_len)
++						ep->xfer_len = ep->total_len;
++					init_dma_desc_chain(core_if, ep);
++
++					if (core_if->core_params->dev_out_nak) {
++						if (ep->type == DWC_OTG_EP_TYPE_BULK) {
++							deptsiz.b.pktcnt = (ep->total_len +
++								(ep->maxpacket - 1)) / ep->maxpacket;
++							deptsiz.b.xfersize = ep->total_len;
++							/* Remember initial value of doeptsiz */
++							core_if->start_doeptsiz_val[ep->num] = deptsiz.d32;
++							DWC_WRITE_REG32(&out_regs->doeptsiz,
++								deptsiz.d32);
++						}
++					}
++				/** DOEPDMAn Register write */
++					DWC_WRITE_REG32(&out_regs->doepdma,
++							ep->dma_desc_addr);
++#ifdef DWC_UTE_CFI
++				}
++#endif
++			}
++		} else {
++			DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32);
++		}
++
++		if (ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			dsts_data_t dsts = {.d32 = 0};
++			if (ep->bInterval == 1) {
++				dsts.d32 =
++				    DWC_READ_REG32(&core_if->dev_if->
++						   dev_global_regs->dsts);
++				ep->frame_num = dsts.b.soffn + ep->bInterval;
++				if (ep->frame_num > 0x3FFF) {
++					ep->frm_overrun = 1;
++					ep->frame_num &= 0x3FFF;
++				} else
++					ep->frm_overrun = 0;
++
++				if (ep->frame_num & 0x1) {
++					depctl.b.setd1pid = 1;
++				} else {
++					depctl.b.setd0pid = 1;
++				}
++			}
++		}
++
++		/* EP enable */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++
++		DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32);
++
++		DWC_DEBUGPL(DBG_PCD, "DOEPCTL=%08x DOEPTSIZ=%08x\n",
++			    DWC_READ_REG32(&out_regs->doepctl),
++			    DWC_READ_REG32(&out_regs->doeptsiz));
++		DWC_DEBUGPL(DBG_PCD, "DAINTMSK=%08x GINTMSK=%08x\n",
++			    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->
++					   daintmsk),
++			    DWC_READ_REG32(&core_if->core_global_regs->
++					   gintmsk));
++
++		/* Timer is scheduling only for out bulk transfers for
++		 * "Device DDMA OUT NAK Enhancement" feature to inform user
++		 * about received data payload in case of timeout
++		 */
++		if (core_if->core_params->dev_out_nak) {
++			if (ep->type == DWC_OTG_EP_TYPE_BULK) {
++				core_if->ep_xfer_info[ep->num].core_if = core_if;
++				core_if->ep_xfer_info[ep->num].ep = ep;
++				core_if->ep_xfer_info[ep->num].state = 1;
++
++				/* Start a timer for this transfer. */
++				DWC_TIMER_SCHEDULE(core_if->ep_xfer_timer[ep->num], 10000);
++			}
++		}
++	}
++}
++
++/**
++ * This function setup a zero length transfer in Buffer DMA and
++ * Slave modes for usb requests with zero field set
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++
++	depctl_data_t depctl;
++	deptsiz_data_t deptsiz;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s()\n", __func__);
++	DWC_PRINTF("zero length transfer is called\n");
++
++	/* IN endpoint */
++	if (ep->is_in == 1) {
++		dwc_otg_dev_in_ep_regs_t *in_regs =
++		    core_if->dev_if->in_ep_regs[ep->num];
++
++		depctl.d32 = DWC_READ_REG32(&(in_regs->diepctl));
++		deptsiz.d32 = DWC_READ_REG32(&(in_regs->dieptsiz));
++
++		deptsiz.b.xfersize = 0;
++		deptsiz.b.pktcnt = 1;
++
++		/* Write the DMA register */
++		if (core_if->dma_enable) {
++			if (core_if->dma_desc_enable == 0) {
++				deptsiz.b.mc = 1;
++				DWC_WRITE_REG32(&in_regs->dieptsiz,
++						deptsiz.d32);
++				DWC_WRITE_REG32(&(in_regs->diepdma),
++						(uint32_t) ep->dma_addr);
++			}
++		} else {
++			DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32);
++			/**
++			 * Enable the Non-Periodic Tx FIFO empty interrupt,
++			 * or the Tx FIFO epmty interrupt in dedicated Tx FIFO mode,
++			 * the data will be written into the fifo by the ISR.
++			 */
++			if (core_if->en_multiple_tx_fifo == 0) {
++				intr_mask.b.nptxfempty = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gintmsk,
++						 intr_mask.d32, intr_mask.d32);
++			} else {
++				/* Enable the Tx FIFO Empty Interrupt for this EP */
++				if (ep->xfer_len > 0) {
++					uint32_t fifoemptymsk = 0;
++					fifoemptymsk = 1 << ep->num;
++					DWC_MODIFY_REG32(&core_if->
++							 dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
++							 0, fifoemptymsk);
++				}
++			}
++		}
++
++		if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable)
++			depctl.b.nextep = core_if->nextep_seq[ep->num];
++		/* EP enable, IN data in FIFO */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32);
++
++	} else {
++		/* OUT endpoint */
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++		    core_if->dev_if->out_ep_regs[ep->num];
++
++		depctl.d32 = DWC_READ_REG32(&(out_regs->doepctl));
++		deptsiz.d32 = DWC_READ_REG32(&(out_regs->doeptsiz));
++
++		/* Zero Length Packet */
++		deptsiz.b.xfersize = ep->maxpacket;
++		deptsiz.b.pktcnt = 1;
++
++		if (core_if->dma_enable) {
++			if (!core_if->dma_desc_enable) {
++				DWC_WRITE_REG32(&out_regs->doeptsiz,
++						deptsiz.d32);
++
++				DWC_WRITE_REG32(&(out_regs->doepdma),
++						(uint32_t) ep->dma_addr);
++			}
++		} else {
++			DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32);
++		}
++
++		/* EP enable */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++
++		DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32);
++
++	}
++}
++
++/**
++ * This function does the setup for a data transfer for EP0 and starts
++ * the transfer.  For an IN transfer, the packets will be loaded into
++ * the appropriate Tx FIFO in the ISR. For OUT transfers, the packets are
++ * unloaded from the Rx FIFO in the ISR.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP0 data.
++ */
++void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl;
++	deptsiz0_data_t deptsiz;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	dwc_otg_dev_dma_desc_t *dma_desc;
++
++	DWC_DEBUGPL(DBG_PCD, "ep%d-%s xfer_len=%d xfer_cnt=%d "
++		    "xfer_buff=%p start_xfer_buff=%p \n",
++		    ep->num, (ep->is_in ? "IN" : "OUT"), ep->xfer_len,
++		    ep->xfer_count, ep->xfer_buff, ep->start_xfer_buff);
++
++	ep->total_len = ep->xfer_len;
++
++	/* IN endpoint */
++	if (ep->is_in == 1) {
++		dwc_otg_dev_in_ep_regs_t *in_regs =
++		    core_if->dev_if->in_ep_regs[0];
++
++		gnptxsts_data_t gtxstatus;
++
++		if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++			depctl.d32 = DWC_READ_REG32(&in_regs->diepctl);
++			if (depctl.b.epena)
++				return;
++		}
++
++		gtxstatus.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->gnptxsts);
++
++		/* If dedicated FIFO every time flush fifo before enable ep*/
++		if (core_if->en_multiple_tx_fifo && core_if->snpsid >= OTG_CORE_REV_3_00a)
++			dwc_otg_flush_tx_fifo(core_if, ep->tx_fifo_num);
++
++		if (core_if->en_multiple_tx_fifo == 0
++		    && gtxstatus.b.nptxqspcavail == 0
++		    && !core_if->dma_enable) {
++#ifdef DEBUG
++			deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz);
++			DWC_DEBUGPL(DBG_PCD, "DIEPCTL0=%0x\n",
++				    DWC_READ_REG32(&in_regs->diepctl));
++			DWC_DEBUGPL(DBG_PCD, "DIEPTSIZ0=%0x (sz=%d, pcnt=%d)\n",
++				    deptsiz.d32,
++				    deptsiz.b.xfersize, deptsiz.b.pktcnt);
++			DWC_PRINTF("TX Queue or FIFO Full (0x%0x)\n",
++				   gtxstatus.d32);
++#endif
++			return;
++		}
++
++		depctl.d32 = DWC_READ_REG32(&in_regs->diepctl);
++		deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz);
++
++		/* Zero Length Packet? */
++		if (ep->xfer_len == 0) {
++			deptsiz.b.xfersize = 0;
++			deptsiz.b.pktcnt = 1;
++		} else {
++			/* Program the transfer size and packet count
++			 *      as follows: xfersize = N * maxpacket +
++			 *      short_packet pktcnt = N + (short_packet
++			 *      exist ? 1 : 0)
++			 */
++			if (ep->xfer_len > ep->maxpacket) {
++				ep->xfer_len = ep->maxpacket;
++				deptsiz.b.xfersize = ep->maxpacket;
++			} else {
++				deptsiz.b.xfersize = ep->xfer_len;
++			}
++			deptsiz.b.pktcnt = 1;
++
++		}
++		DWC_DEBUGPL(DBG_PCDV,
++			    "IN len=%d  xfersize=%d pktcnt=%d [%08x]\n",
++			    ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt,
++			    deptsiz.d32);
++
++		/* Write the DMA register */
++		if (core_if->dma_enable) {
++			if (core_if->dma_desc_enable == 0) {
++				DWC_WRITE_REG32(&in_regs->dieptsiz,
++						deptsiz.d32);
++
++				DWC_WRITE_REG32(&(in_regs->diepdma),
++						(uint32_t) ep->dma_addr);
++			} else {
++				dma_desc = core_if->dev_if->in_desc_addr;
++
++				/** DMA Descriptor Setup */
++				dma_desc->status.b.bs = BS_HOST_BUSY;
++				dma_desc->status.b.l = 1;
++				dma_desc->status.b.ioc = 1;
++				dma_desc->status.b.sp =
++				    (ep->xfer_len == ep->maxpacket) ? 0 : 1;
++				dma_desc->status.b.bytes = ep->xfer_len;
++				dma_desc->buf = ep->dma_addr;
++				dma_desc->status.b.sts = 0;
++				dma_desc->status.b.bs = BS_HOST_READY;
++
++				/** DIEPDMA0 Register write */
++				DWC_WRITE_REG32(&in_regs->diepdma,
++						core_if->
++						dev_if->dma_in_desc_addr);
++			}
++		} else {
++			DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32);
++		}
++
++		if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable)
++			depctl.b.nextep = core_if->nextep_seq[ep->num];
++		/* EP enable, IN data in FIFO */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32);
++
++		/**
++		 * Enable the Non-Periodic Tx FIFO empty interrupt, the
++		 * data will be written into the fifo by the ISR.
++		 */
++		if (!core_if->dma_enable) {
++			if (core_if->en_multiple_tx_fifo == 0) {
++				intr_mask.b.nptxfempty = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gintmsk,
++						 intr_mask.d32, intr_mask.d32);
++			} else {
++				/* Enable the Tx FIFO Empty Interrupt for this EP */
++				if (ep->xfer_len > 0) {
++					uint32_t fifoemptymsk = 0;
++					fifoemptymsk |= 1 << ep->num;
++					DWC_MODIFY_REG32(&core_if->
++							 dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
++							 0, fifoemptymsk);
++				}
++			}
++		}
++	} else {
++		/* OUT endpoint */
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++		    core_if->dev_if->out_ep_regs[0];
++
++		depctl.d32 = DWC_READ_REG32(&out_regs->doepctl);
++		deptsiz.d32 = DWC_READ_REG32(&out_regs->doeptsiz);
++
++		/* Program the transfer size and packet count as follows:
++		 *      xfersize = N * (maxpacket + 4 - (maxpacket % 4))
++		 *      pktcnt = N                                                                                      */
++		/* Zero Length Packet */
++		deptsiz.b.xfersize = ep->maxpacket;
++		deptsiz.b.pktcnt = 1;
++		if (core_if->snpsid >= OTG_CORE_REV_3_00a)
++			deptsiz.b.supcnt = 3;
++
++		DWC_DEBUGPL(DBG_PCDV, "len=%d  xfersize=%d pktcnt=%d\n",
++			    ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt);
++
++		if (core_if->dma_enable) {
++			if (!core_if->dma_desc_enable) {
++				DWC_WRITE_REG32(&out_regs->doeptsiz,
++						deptsiz.d32);
++
++				DWC_WRITE_REG32(&(out_regs->doepdma),
++						(uint32_t) ep->dma_addr);
++			} else {
++				dma_desc = core_if->dev_if->out_desc_addr;
++
++				/** DMA Descriptor Setup */
++				dma_desc->status.b.bs = BS_HOST_BUSY;
++				if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++					dma_desc->status.b.mtrf = 0;
++					dma_desc->status.b.sr = 0;
++				}
++				dma_desc->status.b.l = 1;
++				dma_desc->status.b.ioc = 1;
++				dma_desc->status.b.bytes = ep->maxpacket;
++				dma_desc->buf = ep->dma_addr;
++				dma_desc->status.b.sts = 0;
++				dma_desc->status.b.bs = BS_HOST_READY;
++
++				/** DOEPDMA0 Register write */
++				DWC_WRITE_REG32(&out_regs->doepdma,
++						core_if->dev_if->
++						dma_out_desc_addr);
++			}
++		} else {
++			DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32);
++		}
++
++		/* EP enable */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&(out_regs->doepctl), depctl.d32);
++	}
++}
++
++/**
++ * This function continues control IN transfers started by
++ * dwc_otg_ep0_start_transfer, when the transfer does not fit in a
++ * single packet.  NOTE: The DIEPCTL0/DOEPCTL0 registers only have one
++ * bit for the packet count.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP0 data.
++ */
++void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl;
++	deptsiz0_data_t deptsiz;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	dwc_otg_dev_dma_desc_t *dma_desc;
++
++	if (ep->is_in == 1) {
++		dwc_otg_dev_in_ep_regs_t *in_regs =
++		    core_if->dev_if->in_ep_regs[0];
++		gnptxsts_data_t tx_status = {.d32 = 0 };
++
++		tx_status.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->gnptxsts);
++		/** @todo Should there be check for room in the Tx
++		 * Status Queue.  If not remove the code above this comment. */
++
++		depctl.d32 = DWC_READ_REG32(&in_regs->diepctl);
++		deptsiz.d32 = DWC_READ_REG32(&in_regs->dieptsiz);
++
++		/* Program the transfer size and packet count
++		 *      as follows: xfersize = N * maxpacket +
++		 *      short_packet pktcnt = N + (short_packet
++		 *      exist ? 1 : 0)
++		 */
++
++		if (core_if->dma_desc_enable == 0) {
++			deptsiz.b.xfersize =
++			    (ep->total_len - ep->xfer_count) >
++			    ep->maxpacket ? ep->maxpacket : (ep->total_len -
++							     ep->xfer_count);
++			deptsiz.b.pktcnt = 1;
++			if (core_if->dma_enable == 0) {
++				ep->xfer_len += deptsiz.b.xfersize;
++			} else {
++				ep->xfer_len = deptsiz.b.xfersize;
++			}
++			DWC_WRITE_REG32(&in_regs->dieptsiz, deptsiz.d32);
++		} else {
++			ep->xfer_len =
++			    (ep->total_len - ep->xfer_count) >
++			    ep->maxpacket ? ep->maxpacket : (ep->total_len -
++							     ep->xfer_count);
++
++			dma_desc = core_if->dev_if->in_desc_addr;
++
++			/** DMA Descriptor Setup */
++			dma_desc->status.b.bs = BS_HOST_BUSY;
++			dma_desc->status.b.l = 1;
++			dma_desc->status.b.ioc = 1;
++			dma_desc->status.b.sp =
++			    (ep->xfer_len == ep->maxpacket) ? 0 : 1;
++			dma_desc->status.b.bytes = ep->xfer_len;
++			dma_desc->buf = ep->dma_addr;
++			dma_desc->status.b.sts = 0;
++			dma_desc->status.b.bs = BS_HOST_READY;
++
++			/** DIEPDMA0 Register write */
++			DWC_WRITE_REG32(&in_regs->diepdma,
++					core_if->dev_if->dma_in_desc_addr);
++		}
++
++		DWC_DEBUGPL(DBG_PCDV,
++			    "IN len=%d  xfersize=%d pktcnt=%d [%08x]\n",
++			    ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt,
++			    deptsiz.d32);
++
++		/* Write the DMA register */
++		if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) {
++			if (core_if->dma_desc_enable == 0)
++				DWC_WRITE_REG32(&(in_regs->diepdma),
++						(uint32_t) ep->dma_addr);
++		}
++		if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable)
++			depctl.b.nextep = core_if->nextep_seq[ep->num];
++		/* EP enable, IN data in FIFO */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&in_regs->diepctl, depctl.d32);
++
++		/**
++		 * Enable the Non-Periodic Tx FIFO empty interrupt, the
++		 * data will be written into the fifo by the ISR.
++		 */
++		if (!core_if->dma_enable) {
++			if (core_if->en_multiple_tx_fifo == 0) {
++				/* First clear it from GINTSTS */
++				intr_mask.b.nptxfempty = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gintmsk,
++						 intr_mask.d32, intr_mask.d32);
++
++			} else {
++				/* Enable the Tx FIFO Empty Interrupt for this EP */
++				if (ep->xfer_len > 0) {
++					uint32_t fifoemptymsk = 0;
++					fifoemptymsk |= 1 << ep->num;
++					DWC_MODIFY_REG32(&core_if->
++							 dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
++							 0, fifoemptymsk);
++				}
++			}
++		}
++	} else {
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++		    core_if->dev_if->out_ep_regs[0];
++
++		depctl.d32 = DWC_READ_REG32(&out_regs->doepctl);
++		deptsiz.d32 = DWC_READ_REG32(&out_regs->doeptsiz);
++
++		/* Program the transfer size and packet count
++		 *      as follows: xfersize = N * maxpacket +
++		 *      short_packet pktcnt = N + (short_packet
++		 *      exist ? 1 : 0)
++		 */
++		deptsiz.b.xfersize = ep->maxpacket;
++		deptsiz.b.pktcnt = 1;
++
++		if (core_if->dma_desc_enable == 0) {
++			DWC_WRITE_REG32(&out_regs->doeptsiz, deptsiz.d32);
++		} else {
++			dma_desc = core_if->dev_if->out_desc_addr;
++
++			/** DMA Descriptor Setup */
++			dma_desc->status.b.bs = BS_HOST_BUSY;
++			dma_desc->status.b.l = 1;
++			dma_desc->status.b.ioc = 1;
++			dma_desc->status.b.bytes = ep->maxpacket;
++			dma_desc->buf = ep->dma_addr;
++			dma_desc->status.b.sts = 0;
++			dma_desc->status.b.bs = BS_HOST_READY;
++
++			/** DOEPDMA0 Register write */
++			DWC_WRITE_REG32(&out_regs->doepdma,
++					core_if->dev_if->dma_out_desc_addr);
++		}
++
++		DWC_DEBUGPL(DBG_PCDV,
++			    "IN len=%d  xfersize=%d pktcnt=%d [%08x]\n",
++			    ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt,
++			    deptsiz.d32);
++
++		/* Write the DMA register */
++		if (core_if->hwcfg2.b.architecture == DWC_INT_DMA_ARCH) {
++			if (core_if->dma_desc_enable == 0)
++				DWC_WRITE_REG32(&(out_regs->doepdma),
++						(uint32_t) ep->dma_addr);
++
++		}
++
++		/* EP enable, IN data in FIFO */
++		depctl.b.cnak = 1;
++		depctl.b.epena = 1;
++		DWC_WRITE_REG32(&out_regs->doepctl, depctl.d32);
++
++	}
++}
++
++#ifdef DEBUG
++void dump_msg(const u8 * buf, unsigned int length)
++{
++	unsigned int start, num, i;
++	char line[52], *p;
++
++	if (length >= 512)
++		return;
++	start = 0;
++	while (length > 0) {
++		num = length < 16u ? length : 16u;
++		p = line;
++		for (i = 0; i < num; ++i) {
++			if (i == 8)
++				*p++ = ' ';
++			DWC_SPRINTF(p, " %02x", buf[i]);
++			p += 3;
++		}
++		*p = 0;
++		DWC_PRINTF("%6x: %s\n", start, line);
++		buf += num;
++		start += num;
++		length -= num;
++	}
++}
++#else
++static inline void dump_msg(const u8 * buf, unsigned int length)
++{
++}
++#endif
++
++/**
++ * This function writes a packet into the Tx FIFO associated with the
++ * EP. For non-periodic EPs the non-periodic Tx FIFO is written.  For
++ * periodic EPs the periodic Tx FIFO associated with the EP is written
++ * with all packets for the next micro-frame.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to write packet for.
++ * @param dma Indicates if DMA is being used.
++ */
++void dwc_otg_ep_write_packet(dwc_otg_core_if_t * core_if, dwc_ep_t * ep,
++			     int dma)
++{
++	/**
++	 * The buffer is padded to DWORD on a per packet basis in
++	 * slave/dma mode if the MPS is not DWORD aligned. The last
++	 * packet, if short, is also padded to a multiple of DWORD.
++	 *
++	 * ep->xfer_buff always starts DWORD aligned in memory and is a
++	 * multiple of DWORD in length
++	 *
++	 * ep->xfer_len can be any number of bytes
++	 *
++	 * ep->xfer_count is a multiple of ep->maxpacket until the last
++	 *	packet
++	 *
++	 * FIFO access is DWORD */
++
++	uint32_t i;
++	uint32_t byte_count;
++	uint32_t dword_count;
++	uint32_t *fifo;
++	uint32_t *data_buff = (uint32_t *) ep->xfer_buff;
++
++	DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p)\n", __func__, core_if,
++		    ep);
++	if (ep->xfer_count >= ep->xfer_len) {
++		DWC_WARN("%s() No data for EP%d!!!\n", __func__, ep->num);
++		return;
++	}
++
++	/* Find the byte length of the packet either short packet or MPS */
++	if ((ep->xfer_len - ep->xfer_count) < ep->maxpacket) {
++		byte_count = ep->xfer_len - ep->xfer_count;
++	} else {
++		byte_count = ep->maxpacket;
++	}
++
++	/* Find the DWORD length, padded by extra bytes as neccessary if MPS
++	 * is not a multiple of DWORD */
++	dword_count = (byte_count + 3) / 4;
++
++#ifdef VERBOSE
++	dump_msg(ep->xfer_buff, byte_count);
++#endif
++
++	/**@todo NGS Where are the Periodic Tx FIFO addresses
++	 * intialized?	What should this be? */
++
++	fifo = core_if->data_fifo[ep->num];
++
++	DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "fifo=%p buff=%p *p=%08x bc=%d\n",
++		    fifo, data_buff, *data_buff, byte_count);
++
++	if (!dma) {
++		for (i = 0; i < dword_count; i++, data_buff++) {
++			DWC_WRITE_REG32(fifo, *data_buff);
++		}
++	}
++
++	ep->xfer_count += byte_count;
++	ep->xfer_buff += byte_count;
++	ep->dma_addr += byte_count;
++}
++
++/**
++ * Set the EP STALL.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to set the stall on.
++ */
++void dwc_otg_ep_set_stall(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl;
++	volatile uint32_t *depctl_addr;
++
++	DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num,
++		    (ep->is_in ? "IN" : "OUT"));
++
++	if (ep->is_in == 1) {
++		depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl);
++		depctl.d32 = DWC_READ_REG32(depctl_addr);
++
++		/* set the disable and stall bits */
++		if (depctl.b.epena) {
++			depctl.b.epdis = 1;
++		}
++		depctl.b.stall = 1;
++		DWC_WRITE_REG32(depctl_addr, depctl.d32);
++	} else {
++		depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl);
++		depctl.d32 = DWC_READ_REG32(depctl_addr);
++
++		/* set the stall bit */
++		depctl.b.stall = 1;
++		DWC_WRITE_REG32(depctl_addr, depctl.d32);
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "DEPCTL=%0x\n", DWC_READ_REG32(depctl_addr));
++
++	return;
++}
++
++/**
++ * Clear the EP STALL.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to clear stall from.
++ */
++void dwc_otg_ep_clear_stall(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl;
++	volatile uint32_t *depctl_addr;
++
++	DWC_DEBUGPL(DBG_PCD, "%s ep%d-%s\n", __func__, ep->num,
++		    (ep->is_in ? "IN" : "OUT"));
++
++	if (ep->is_in == 1) {
++		depctl_addr = &(core_if->dev_if->in_ep_regs[ep->num]->diepctl);
++	} else {
++		depctl_addr = &(core_if->dev_if->out_ep_regs[ep->num]->doepctl);
++	}
++
++	depctl.d32 = DWC_READ_REG32(depctl_addr);
++
++	/* clear the stall bits */
++	depctl.b.stall = 0;
++
++	/*
++	 * USB Spec 9.4.5: For endpoints using data toggle, regardless
++	 * of whether an endpoint has the Halt feature set, a
++	 * ClearFeature(ENDPOINT_HALT) request always results in the
++	 * data toggle being reinitialized to DATA0.
++	 */
++	if (ep->type == DWC_OTG_EP_TYPE_INTR ||
++	    ep->type == DWC_OTG_EP_TYPE_BULK) {
++		depctl.b.setd0pid = 1;	/* DATA0 */
++	}
++
++	DWC_WRITE_REG32(depctl_addr, depctl.d32);
++	DWC_DEBUGPL(DBG_PCD, "DEPCTL=%0x\n", DWC_READ_REG32(depctl_addr));
++	return;
++}
++
++/**
++ * This function reads a packet from the Rx FIFO into the destination
++ * buffer. To read SETUP data use dwc_otg_read_setup_packet.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dest	  Destination buffer for the packet.
++ * @param bytes  Number of bytes to copy to the destination.
++ */
++void dwc_otg_read_packet(dwc_otg_core_if_t * core_if,
++			 uint8_t * dest, uint16_t bytes)
++{
++	int i;
++	int word_count = (bytes + 3) / 4;
++
++	volatile uint32_t *fifo = core_if->data_fifo[0];
++	uint32_t *data_buff = (uint32_t *) dest;
++
++	/**
++	 * @todo Account for the case where _dest is not dword aligned. This
++	 * requires reading data from the FIFO into a uint32_t temp buffer,
++	 * then moving it into the data buffer.
++	 */
++
++	DWC_DEBUGPL((DBG_PCDV | DBG_CILV), "%s(%p,%p,%d)\n", __func__,
++		    core_if, dest, bytes);
++
++	for (i = 0; i < word_count; i++, data_buff++) {
++		*data_buff = DWC_READ_REG32(fifo);
++	}
++
++	return;
++}
++
++/**
++ * This functions reads the device registers and prints them
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_dump_dev_registers(dwc_otg_core_if_t * core_if)
++{
++	int i;
++	volatile uint32_t *addr;
++
++	DWC_PRINTF("Device Global Registers\n");
++	addr = &core_if->dev_if->dev_global_regs->dcfg;
++	DWC_PRINTF("DCFG		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->dctl;
++	DWC_PRINTF("DCTL		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->dsts;
++	DWC_PRINTF("DSTS		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->diepmsk;
++	DWC_PRINTF("DIEPMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->doepmsk;
++	DWC_PRINTF("DOEPMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->daint;
++	DWC_PRINTF("DAINT	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->daintmsk;
++	DWC_PRINTF("DAINTMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->dev_if->dev_global_regs->dtknqr1;
++	DWC_PRINTF("DTKNQR1	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	if (core_if->hwcfg2.b.dev_token_q_depth > 6) {
++		addr = &core_if->dev_if->dev_global_regs->dtknqr2;
++		DWC_PRINTF("DTKNQR2	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++	}
++
++	addr = &core_if->dev_if->dev_global_regs->dvbusdis;
++	DWC_PRINTF("DVBUSID	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++
++	addr = &core_if->dev_if->dev_global_regs->dvbuspulse;
++	DWC_PRINTF("DVBUSPULSE	@0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++
++	addr = &core_if->dev_if->dev_global_regs->dtknqr3_dthrctl;
++	DWC_PRINTF("DTKNQR3_DTHRCTL	 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++
++	if (core_if->hwcfg2.b.dev_token_q_depth > 22) {
++		addr = &core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk;
++		DWC_PRINTF("DTKNQR4	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++	}
++
++	addr = &core_if->dev_if->dev_global_regs->dtknqr4_fifoemptymsk;
++	DWC_PRINTF("FIFOEMPMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++
++	if (core_if->hwcfg2.b.multi_proc_int) {
++
++		addr = &core_if->dev_if->dev_global_regs->deachint;
++		DWC_PRINTF("DEACHINT	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->dev_global_regs->deachintmsk;
++		DWC_PRINTF("DEACHINTMSK	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++
++		for (i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++			addr =
++			    &core_if->dev_if->
++			    dev_global_regs->diepeachintmsk[i];
++			DWC_PRINTF("DIEPEACHINTMSK[%d]	 @0x%08lX : 0x%08X\n",
++				   i, (unsigned long)addr,
++				   DWC_READ_REG32(addr));
++		}
++
++		for (i = 0; i <= core_if->dev_if->num_out_eps; i++) {
++			addr =
++			    &core_if->dev_if->
++			    dev_global_regs->doepeachintmsk[i];
++			DWC_PRINTF("DOEPEACHINTMSK[%d]	 @0x%08lX : 0x%08X\n",
++				   i, (unsigned long)addr,
++				   DWC_READ_REG32(addr));
++		}
++	}
++
++	for (i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++		DWC_PRINTF("Device IN EP %d Registers\n", i);
++		addr = &core_if->dev_if->in_ep_regs[i]->diepctl;
++		DWC_PRINTF("DIEPCTL	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->in_ep_regs[i]->diepint;
++		DWC_PRINTF("DIEPINT	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->in_ep_regs[i]->dieptsiz;
++		DWC_PRINTF("DIETSIZ	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->in_ep_regs[i]->diepdma;
++		DWC_PRINTF("DIEPDMA	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->in_ep_regs[i]->dtxfsts;
++		DWC_PRINTF("DTXFSTS	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->in_ep_regs[i]->diepdmab;
++		DWC_PRINTF("DIEPDMAB	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, 0 /*DWC_READ_REG32(addr) */ );
++	}
++
++	for (i = 0; i <= core_if->dev_if->num_out_eps; i++) {
++		DWC_PRINTF("Device OUT EP %d Registers\n", i);
++		addr = &core_if->dev_if->out_ep_regs[i]->doepctl;
++		DWC_PRINTF("DOEPCTL	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->out_ep_regs[i]->doepint;
++		DWC_PRINTF("DOEPINT	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->out_ep_regs[i]->doeptsiz;
++		DWC_PRINTF("DOETSIZ	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->dev_if->out_ep_regs[i]->doepdma;
++		DWC_PRINTF("DOEPDMA	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		if (core_if->dma_enable) {	/* Don't access this register in SLAVE mode */
++			addr = &core_if->dev_if->out_ep_regs[i]->doepdmab;
++			DWC_PRINTF("DOEPDMAB	 @0x%08lX : 0x%08X\n",
++				   (unsigned long)addr, DWC_READ_REG32(addr));
++		}
++
++	}
++}
++
++/**
++ * This functions reads the SPRAM and prints its content
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_dump_spram(dwc_otg_core_if_t * core_if)
++{
++	volatile uint8_t *addr, *start_addr, *end_addr;
++
++	DWC_PRINTF("SPRAM Data:\n");
++	start_addr = (void *)core_if->core_global_regs;
++	DWC_PRINTF("Base Address: 0x%8lX\n", (unsigned long)start_addr);
++	start_addr += 0x00028000;
++	end_addr = (void *)core_if->core_global_regs;
++	end_addr += 0x000280e0;
++
++	for (addr = start_addr; addr < end_addr; addr += 16) {
++		DWC_PRINTF
++		    ("0x%8lX:\t%2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X %2X\n",
++		     (unsigned long)addr, addr[0], addr[1], addr[2], addr[3],
++		     addr[4], addr[5], addr[6], addr[7], addr[8], addr[9],
++		     addr[10], addr[11], addr[12], addr[13], addr[14], addr[15]
++		    );
++	}
++
++	return;
++}
++
++/**
++ * This function reads the host registers and prints them
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_dump_host_registers(dwc_otg_core_if_t * core_if)
++{
++	int i;
++	volatile uint32_t *addr;
++
++	DWC_PRINTF("Host Global Registers\n");
++	addr = &core_if->host_if->host_global_regs->hcfg;
++	DWC_PRINTF("HCFG		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->host_if->host_global_regs->hfir;
++	DWC_PRINTF("HFIR		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->host_if->host_global_regs->hfnum;
++	DWC_PRINTF("HFNUM	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->host_if->host_global_regs->hptxsts;
++	DWC_PRINTF("HPTXSTS	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->host_if->host_global_regs->haint;
++	DWC_PRINTF("HAINT	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->host_if->host_global_regs->haintmsk;
++	DWC_PRINTF("HAINTMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	if (core_if->dma_desc_enable) {
++		addr = &core_if->host_if->host_global_regs->hflbaddr;
++		DWC_PRINTF("HFLBADDR	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++	}
++
++	addr = core_if->host_if->hprt0;
++	DWC_PRINTF("HPRT0	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++
++	for (i = 0; i < core_if->core_params->host_channels; i++) {
++		DWC_PRINTF("Host Channel %d Specific Registers\n", i);
++		addr = &core_if->host_if->hc_regs[i]->hcchar;
++		DWC_PRINTF("HCCHAR	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->host_if->hc_regs[i]->hcsplt;
++		DWC_PRINTF("HCSPLT	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->host_if->hc_regs[i]->hcint;
++		DWC_PRINTF("HCINT	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->host_if->hc_regs[i]->hcintmsk;
++		DWC_PRINTF("HCINTMSK	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->host_if->hc_regs[i]->hctsiz;
++		DWC_PRINTF("HCTSIZ	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		addr = &core_if->host_if->hc_regs[i]->hcdma;
++		DWC_PRINTF("HCDMA	 @0x%08lX : 0x%08X\n",
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++		if (core_if->dma_desc_enable) {
++			addr = &core_if->host_if->hc_regs[i]->hcdmab;
++			DWC_PRINTF("HCDMAB	 @0x%08lX : 0x%08X\n",
++				   (unsigned long)addr, DWC_READ_REG32(addr));
++		}
++
++	}
++	return;
++}
++
++/**
++ * This function reads the core global registers and prints them
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_dump_global_registers(dwc_otg_core_if_t * core_if)
++{
++	int i, ep_num;
++	volatile uint32_t *addr;
++	char *txfsiz;
++
++	DWC_PRINTF("Core Global Registers\n");
++	addr = &core_if->core_global_regs->gotgctl;
++	DWC_PRINTF("GOTGCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gotgint;
++	DWC_PRINTF("GOTGINT	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gahbcfg;
++	DWC_PRINTF("GAHBCFG	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gusbcfg;
++	DWC_PRINTF("GUSBCFG	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->grstctl;
++	DWC_PRINTF("GRSTCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gintsts;
++	DWC_PRINTF("GINTSTS	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gintmsk;
++	DWC_PRINTF("GINTMSK	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->grxstsr;
++	DWC_PRINTF("GRXSTSR	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->grxfsiz;
++	DWC_PRINTF("GRXFSIZ	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gnptxfsiz;
++	DWC_PRINTF("GNPTXFSIZ @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gnptxsts;
++	DWC_PRINTF("GNPTXSTS	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gi2cctl;
++	DWC_PRINTF("GI2CCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gpvndctl;
++	DWC_PRINTF("GPVNDCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->ggpio;
++	DWC_PRINTF("GGPIO	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->guid;
++	DWC_PRINTF("GUID		 @0x%08lX : 0x%08X\n",
++		   (unsigned long)addr, DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gsnpsid;
++	DWC_PRINTF("GSNPSID	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->ghwcfg1;
++	DWC_PRINTF("GHWCFG1	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->ghwcfg2;
++	DWC_PRINTF("GHWCFG2	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->ghwcfg3;
++	DWC_PRINTF("GHWCFG3	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->ghwcfg4;
++	DWC_PRINTF("GHWCFG4	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->glpmcfg;
++	DWC_PRINTF("GLPMCFG	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gpwrdn;
++	DWC_PRINTF("GPWRDN	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->gdfifocfg;
++	DWC_PRINTF("GDFIFOCFG	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++	addr = &core_if->core_global_regs->adpctl;
++	DWC_PRINTF("ADPCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   dwc_otg_adp_read_reg(core_if));
++	addr = &core_if->core_global_regs->hptxfsiz;
++	DWC_PRINTF("HPTXFSIZ	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++
++	if (core_if->en_multiple_tx_fifo == 0) {
++		ep_num = core_if->hwcfg4.b.num_dev_perio_in_ep;
++		txfsiz = "DPTXFSIZ";
++	} else {
++		ep_num = core_if->hwcfg4.b.num_in_eps;
++		txfsiz = "DIENPTXF";
++	}
++	for (i = 0; i < ep_num; i++) {
++		addr = &core_if->core_global_regs->dtxfsiz[i];
++		DWC_PRINTF("%s[%d] @0x%08lX : 0x%08X\n", txfsiz, i + 1,
++			   (unsigned long)addr, DWC_READ_REG32(addr));
++	}
++	addr = core_if->pcgcctl;
++	DWC_PRINTF("PCGCCTL	 @0x%08lX : 0x%08X\n", (unsigned long)addr,
++		   DWC_READ_REG32(addr));
++}
++
++/**
++ * Flush a Tx FIFO.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param num Tx FIFO to flush.
++ */
++void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t * core_if, const int num)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	volatile grstctl_t greset = {.d32 = 0 };
++	int count = 0;
++
++	DWC_DEBUGPL((DBG_CIL | DBG_PCDV), "Flush Tx FIFO %d\n", num);
++
++	greset.b.txfflsh = 1;
++	greset.b.txfnum = num;
++	DWC_WRITE_REG32(&global_regs->grstctl, greset.d32);
++
++	do {
++		greset.d32 = DWC_READ_REG32(&global_regs->grstctl);
++		if (++count > 10000) {
++			DWC_WARN("%s() HANG! GRSTCTL=%0x GNPTXSTS=0x%08x\n",
++				 __func__, greset.d32,
++				 DWC_READ_REG32(&global_regs->gnptxsts));
++			break;
++		}
++		dwc_udelay(1);
++	} while (greset.b.txfflsh == 1);
++
++	/* Wait for 3 PHY Clocks */
++	dwc_udelay(1);
++}
++
++/**
++ * Flush Rx FIFO.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	volatile grstctl_t greset = {.d32 = 0 };
++	int count = 0;
++
++	DWC_DEBUGPL((DBG_CIL | DBG_PCDV), "%s\n", __func__);
++	/*
++	 *
++	 */
++	greset.b.rxfflsh = 1;
++	DWC_WRITE_REG32(&global_regs->grstctl, greset.d32);
++
++	do {
++		greset.d32 = DWC_READ_REG32(&global_regs->grstctl);
++		if (++count > 10000) {
++			DWC_WARN("%s() HANG! GRSTCTL=%0x\n", __func__,
++				 greset.d32);
++			break;
++		}
++		dwc_udelay(1);
++	} while (greset.b.rxfflsh == 1);
++
++	/* Wait for 3 PHY Clocks */
++	dwc_udelay(1);
++}
++
++/**
++ * Do core a soft reset of the core.  Be careful with this because it
++ * resets all the internal state machines of the core.
++ */
++void dwc_otg_core_reset(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	volatile grstctl_t greset = {.d32 = 0 };
++	int count = 0;
++
++	DWC_DEBUGPL(DBG_CILV, "%s\n", __func__);
++	/* Wait for AHB master IDLE state. */
++	do {
++		dwc_udelay(10);
++		greset.d32 = DWC_READ_REG32(&global_regs->grstctl);
++		if (++count > 100000) {
++			DWC_WARN("%s() HANG! AHB Idle GRSTCTL=%0x\n", __func__,
++				 greset.d32);
++			return;
++		}
++	}
++	while (greset.b.ahbidle == 0);
++
++	/* Core Soft Reset */
++	count = 0;
++	greset.b.csftrst = 1;
++	DWC_WRITE_REG32(&global_regs->grstctl, greset.d32);
++	do {
++		greset.d32 = DWC_READ_REG32(&global_regs->grstctl);
++		if (++count > 10000) {
++			DWC_WARN("%s() HANG! Soft Reset GRSTCTL=%0x\n",
++				 __func__, greset.d32);
++			break;
++		}
++		dwc_udelay(1);
++	}
++	while (greset.b.csftrst == 1);
++
++	/* Wait for 3 PHY Clocks */
++	dwc_mdelay(100);
++}
++
++uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t * _core_if)
++{
++	return (dwc_otg_mode(_core_if) != DWC_HOST_MODE);
++}
++
++uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t * _core_if)
++{
++	return (dwc_otg_mode(_core_if) == DWC_HOST_MODE);
++}
++
++/**
++ * Register HCD callbacks. The callbacks are used to start and stop
++ * the HCD for interrupt processing.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param cb the HCD callback structure.
++ * @param p pointer to be passed to callback function (usb_hcd*).
++ */
++void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t * core_if,
++					dwc_otg_cil_callbacks_t * cb, void *p)
++{
++	core_if->hcd_cb = cb;
++	cb->p = p;
++}
++
++/**
++ * Register PCD callbacks. The callbacks are used to start and stop
++ * the PCD for interrupt processing.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param cb the PCD callback structure.
++ * @param p pointer to be passed to callback function (pcd*).
++ */
++void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t * core_if,
++					dwc_otg_cil_callbacks_t * cb, void *p)
++{
++	core_if->pcd_cb = cb;
++	cb->p = p;
++}
++
++#ifdef DWC_EN_ISOC
++
++/**
++ * This function writes isoc data per 1 (micro)frame into tx fifo
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++void write_isoc_frame_data(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	dwc_otg_dev_in_ep_regs_t *ep_regs;
++	dtxfsts_data_t txstatus = {.d32 = 0 };
++	uint32_t len = 0;
++	uint32_t dwords;
++
++	ep->xfer_len = ep->data_per_frame;
++	ep->xfer_count = 0;
++
++	ep_regs = core_if->dev_if->in_ep_regs[ep->num];
++
++	len = ep->xfer_len - ep->xfer_count;
++
++	if (len > ep->maxpacket) {
++		len = ep->maxpacket;
++	}
++
++	dwords = (len + 3) / 4;
++
++	/* While there is space in the queue and space in the FIFO and
++	 * More data to tranfer, Write packets to the Tx FIFO */
++	txstatus.d32 =
++	    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]->dtxfsts);
++	DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", ep->num, txstatus.d32);
++
++	while (txstatus.b.txfspcavail > dwords &&
++	       ep->xfer_count < ep->xfer_len && ep->xfer_len != 0) {
++		/* Write the FIFO */
++		dwc_otg_ep_write_packet(core_if, ep, 0);
++
++		len = ep->xfer_len - ep->xfer_count;
++		if (len > ep->maxpacket) {
++			len = ep->maxpacket;
++		}
++
++		dwords = (len + 3) / 4;
++		txstatus.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++				   dtxfsts);
++		DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", ep->num,
++			    txstatus.d32);
++	}
++}
++
++/**
++ * This function initializes a descriptor chain for Isochronous transfer
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t * core_if,
++				       dwc_ep_t * ep)
++{
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	dsts_data_t dsts = {.d32 = 0 };
++	volatile uint32_t *addr;
++
++	if (ep->is_in) {
++		addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl;
++	} else {
++		addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl;
++	}
++
++	ep->xfer_len = ep->data_per_frame;
++	ep->xfer_count = 0;
++	ep->xfer_buff = ep->cur_pkt_addr;
++	ep->dma_addr = ep->cur_pkt_dma_addr;
++
++	if (ep->is_in) {
++		/* Program the transfer size and packet count
++		 *      as follows: xfersize = N * maxpacket +
++		 *      short_packet pktcnt = N + (short_packet
++		 *      exist ? 1 : 0)
++		 */
++		deptsiz.b.xfersize = ep->xfer_len;
++		deptsiz.b.pktcnt =
++		    (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket;
++		deptsiz.b.mc = deptsiz.b.pktcnt;
++		DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->dieptsiz,
++				deptsiz.d32);
++
++		/* Write the DMA register */
++		if (core_if->dma_enable) {
++			DWC_WRITE_REG32(&
++					(core_if->dev_if->in_ep_regs[ep->num]->
++					 diepdma), (uint32_t) ep->dma_addr);
++		}
++	} else {
++		deptsiz.b.pktcnt =
++		    (ep->xfer_len + (ep->maxpacket - 1)) / ep->maxpacket;
++		deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket;
++
++		DWC_WRITE_REG32(&core_if->dev_if->
++				out_ep_regs[ep->num]->doeptsiz, deptsiz.d32);
++
++		if (core_if->dma_enable) {
++			DWC_WRITE_REG32(&
++					(core_if->dev_if->
++					 out_ep_regs[ep->num]->doepdma),
++					(uint32_t) ep->dma_addr);
++		}
++	}
++
++	/** Enable endpoint, clear nak  */
++
++	depctl.d32 = 0;
++	if (ep->bInterval == 1) {
++		dsts.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++		ep->next_frame = dsts.b.soffn + ep->bInterval;
++
++		if (ep->next_frame & 0x1) {
++			depctl.b.setd1pid = 1;
++		} else {
++			depctl.b.setd0pid = 1;
++		}
++	} else {
++		ep->next_frame += ep->bInterval;
++
++		if (ep->next_frame & 0x1) {
++			depctl.b.setd1pid = 1;
++		} else {
++			depctl.b.setd0pid = 1;
++		}
++	}
++	depctl.b.epena = 1;
++	depctl.b.cnak = 1;
++
++	DWC_MODIFY_REG32(addr, 0, depctl.d32);
++	depctl.d32 = DWC_READ_REG32(addr);
++
++	if (ep->is_in && core_if->dma_enable == 0) {
++		write_isoc_frame_data(core_if, ep);
++	}
++
++}
++#endif /* DWC_EN_ISOC */
++
++static void dwc_otg_set_uninitialized(int32_t * p, int size)
++{
++	int i;
++	for (i = 0; i < size; i++) {
++		p[i] = -1;
++	}
++}
++
++static int dwc_otg_param_initialized(int32_t val)
++{
++	return val != -1;
++}
++
++static int dwc_otg_setup_params(dwc_otg_core_if_t * core_if)
++{
++	int i;
++	core_if->core_params = DWC_ALLOC(sizeof(*core_if->core_params));
++	if (!core_if->core_params) {
++		return -DWC_E_NO_MEMORY;
++	}
++	dwc_otg_set_uninitialized((int32_t *) core_if->core_params,
++				  sizeof(*core_if->core_params) /
++				  sizeof(int32_t));
++	DWC_PRINTF("Setting default values for core params\n");
++	dwc_otg_set_param_otg_cap(core_if, dwc_param_otg_cap_default);
++	dwc_otg_set_param_dma_enable(core_if, dwc_param_dma_enable_default);
++	dwc_otg_set_param_dma_desc_enable(core_if,
++					  dwc_param_dma_desc_enable_default);
++	dwc_otg_set_param_opt(core_if, dwc_param_opt_default);
++	dwc_otg_set_param_dma_burst_size(core_if,
++					 dwc_param_dma_burst_size_default);
++	dwc_otg_set_param_host_support_fs_ls_low_power(core_if,
++						       dwc_param_host_support_fs_ls_low_power_default);
++	dwc_otg_set_param_enable_dynamic_fifo(core_if,
++					      dwc_param_enable_dynamic_fifo_default);
++	dwc_otg_set_param_data_fifo_size(core_if,
++					 dwc_param_data_fifo_size_default);
++	dwc_otg_set_param_dev_rx_fifo_size(core_if,
++					   dwc_param_dev_rx_fifo_size_default);
++	dwc_otg_set_param_dev_nperio_tx_fifo_size(core_if,
++						  dwc_param_dev_nperio_tx_fifo_size_default);
++	dwc_otg_set_param_host_rx_fifo_size(core_if,
++					    dwc_param_host_rx_fifo_size_default);
++	dwc_otg_set_param_host_nperio_tx_fifo_size(core_if,
++						   dwc_param_host_nperio_tx_fifo_size_default);
++	dwc_otg_set_param_host_perio_tx_fifo_size(core_if,
++						  dwc_param_host_perio_tx_fifo_size_default);
++	dwc_otg_set_param_max_transfer_size(core_if,
++					    dwc_param_max_transfer_size_default);
++	dwc_otg_set_param_max_packet_count(core_if,
++					   dwc_param_max_packet_count_default);
++	dwc_otg_set_param_host_channels(core_if,
++					dwc_param_host_channels_default);
++	dwc_otg_set_param_dev_endpoints(core_if,
++					dwc_param_dev_endpoints_default);
++	dwc_otg_set_param_phy_type(core_if, dwc_param_phy_type_default);
++	dwc_otg_set_param_speed(core_if, dwc_param_speed_default);
++	dwc_otg_set_param_host_ls_low_power_phy_clk(core_if,
++						    dwc_param_host_ls_low_power_phy_clk_default);
++	dwc_otg_set_param_phy_ulpi_ddr(core_if, dwc_param_phy_ulpi_ddr_default);
++	dwc_otg_set_param_phy_ulpi_ext_vbus(core_if,
++					    dwc_param_phy_ulpi_ext_vbus_default);
++	dwc_otg_set_param_phy_utmi_width(core_if,
++					 dwc_param_phy_utmi_width_default);
++	dwc_otg_set_param_ts_dline(core_if, dwc_param_ts_dline_default);
++	dwc_otg_set_param_i2c_enable(core_if, dwc_param_i2c_enable_default);
++	dwc_otg_set_param_ulpi_fs_ls(core_if, dwc_param_ulpi_fs_ls_default);
++	dwc_otg_set_param_en_multiple_tx_fifo(core_if,
++					      dwc_param_en_multiple_tx_fifo_default);
++	for (i = 0; i < 15; i++) {
++		dwc_otg_set_param_dev_perio_tx_fifo_size(core_if,
++							 dwc_param_dev_perio_tx_fifo_size_default,
++							 i);
++	}
++
++	for (i = 0; i < 15; i++) {
++		dwc_otg_set_param_dev_tx_fifo_size(core_if,
++						   dwc_param_dev_tx_fifo_size_default,
++						   i);
++	}
++	dwc_otg_set_param_thr_ctl(core_if, dwc_param_thr_ctl_default);
++	dwc_otg_set_param_mpi_enable(core_if, dwc_param_mpi_enable_default);
++	dwc_otg_set_param_pti_enable(core_if, dwc_param_pti_enable_default);
++	dwc_otg_set_param_lpm_enable(core_if, dwc_param_lpm_enable_default);
++	dwc_otg_set_param_ic_usb_cap(core_if, dwc_param_ic_usb_cap_default);
++	dwc_otg_set_param_tx_thr_length(core_if,
++					dwc_param_tx_thr_length_default);
++	dwc_otg_set_param_rx_thr_length(core_if,
++					dwc_param_rx_thr_length_default);
++	dwc_otg_set_param_ahb_thr_ratio(core_if,
++					dwc_param_ahb_thr_ratio_default);
++	dwc_otg_set_param_power_down(core_if, dwc_param_power_down_default);
++	dwc_otg_set_param_reload_ctl(core_if, dwc_param_reload_ctl_default);
++	dwc_otg_set_param_dev_out_nak(core_if, dwc_param_dev_out_nak_default);
++	dwc_otg_set_param_cont_on_bna(core_if, dwc_param_cont_on_bna_default);
++	dwc_otg_set_param_ahb_single(core_if, dwc_param_ahb_single_default);
++	dwc_otg_set_param_otg_ver(core_if, dwc_param_otg_ver_default);
++	dwc_otg_set_param_adp_enable(core_if, dwc_param_adp_enable_default);
++	DWC_PRINTF("Finished setting default values for core params\n");
++
++	return 0;
++}
++
++uint8_t dwc_otg_is_dma_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->dma_enable;
++}
++
++/* Checks if the parameter is outside of its valid range of values */
++#define DWC_OTG_PARAM_TEST(_param_, _low_, _high_) \
++		(((_param_) < (_low_)) || \
++		((_param_) > (_high_)))
++
++/* Parameter access functions */
++int dwc_otg_set_param_otg_cap(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int valid;
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 2)) {
++		DWC_WARN("Wrong value for otg_cap parameter\n");
++		DWC_WARN("otg_cap parameter must be 0,1 or 2\n");
++		retval = -DWC_E_INVALID;
++		goto out;
++	}
++
++	valid = 1;
++	switch (val) {
++	case DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE:
++		if (core_if->hwcfg2.b.op_mode !=
++		    DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG)
++			valid = 0;
++		break;
++	case DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE:
++		if ((core_if->hwcfg2.b.op_mode !=
++		     DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG)
++		    && (core_if->hwcfg2.b.op_mode !=
++			DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG)
++		    && (core_if->hwcfg2.b.op_mode !=
++			DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE)
++		    && (core_if->hwcfg2.b.op_mode !=
++			DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) {
++			valid = 0;
++		}
++		break;
++	case DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE:
++		/* always valid */
++		break;
++	}
++	if (!valid) {
++		if (dwc_otg_param_initialized(core_if->core_params->otg_cap)) {
++			DWC_ERROR
++			    ("%d invalid for otg_cap paremter. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    (((core_if->hwcfg2.b.op_mode ==
++		       DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG)
++		      || (core_if->hwcfg2.b.op_mode ==
++			  DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG)
++		      || (core_if->hwcfg2.b.op_mode ==
++			  DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE)
++		      || (core_if->hwcfg2.b.op_mode ==
++			  DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST)) ?
++		     DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE :
++		     DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->otg_cap = val;
++out:
++	return retval;
++}
++
++int32_t dwc_otg_get_param_otg_cap(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->otg_cap;
++}
++
++int dwc_otg_set_param_opt(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for opt parameter\n");
++		return -DWC_E_INVALID;
++	}
++	core_if->core_params->opt = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_opt(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->opt;
++}
++
++int dwc_otg_set_param_dma_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for dma enable\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && (core_if->hwcfg2.b.architecture == 0)) {
++		if (dwc_otg_param_initialized(core_if->core_params->dma_enable)) {
++			DWC_ERROR
++			    ("%d invalid for dma_enable paremter. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dma_enable = val;
++	if (val == 0) {
++		dwc_otg_set_param_dma_desc_enable(core_if, 0);
++	}
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dma_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dma_enable;
++}
++
++int dwc_otg_set_param_dma_desc_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for dma_enable\n");
++		DWC_WARN("dma_desc_enable must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1)
++	    && ((dwc_otg_get_param_dma_enable(core_if) == 0)
++		|| (core_if->hwcfg4.b.desc_dma == 0))) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->dma_desc_enable)) {
++			DWC_ERROR
++			    ("%d invalid for dma_desc_enable paremter. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++	core_if->core_params->dma_desc_enable = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dma_desc_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dma_desc_enable;
++}
++
++int dwc_otg_set_param_host_support_fs_ls_low_power(dwc_otg_core_if_t * core_if,
++						   int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for host_support_fs_low_power\n");
++		DWC_WARN("host_support_fs_low_power must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++	core_if->core_params->host_support_fs_ls_low_power = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_host_support_fs_ls_low_power(dwc_otg_core_if_t *
++						       core_if)
++{
++	return core_if->core_params->host_support_fs_ls_low_power;
++}
++
++int dwc_otg_set_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if,
++					  int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for enable_dynamic_fifo\n");
++		DWC_WARN("enable_dynamic_fifo must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && (core_if->hwcfg2.b.dynamic_fifo == 0)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->enable_dynamic_fifo)) {
++			DWC_ERROR
++			    ("%d invalid for enable_dynamic_fifo paremter. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++	core_if->core_params->enable_dynamic_fifo = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->enable_dynamic_fifo;
++}
++
++int dwc_otg_set_param_data_fifo_size(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 32, 32768)) {
++		DWC_WARN("Wrong value for data_fifo_size\n");
++		DWC_WARN("data_fifo_size must be 32-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > core_if->hwcfg3.b.dfifo_depth) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->data_fifo_size)) {
++			DWC_ERROR
++			    ("%d invalid for data_fifo_size parameter. Check HW configuration.\n",
++			     val);
++		}
++		val = core_if->hwcfg3.b.dfifo_depth;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->data_fifo_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_data_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->data_fifo_size;
++}
++
++int dwc_otg_set_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 16, 32768)) {
++		DWC_WARN("Wrong value for dev_rx_fifo_size\n");
++		DWC_WARN("dev_rx_fifo_size must be 16-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > DWC_READ_REG32(&core_if->core_global_regs->grxfsiz)) {
++		if (dwc_otg_param_initialized(core_if->core_params->dev_rx_fifo_size)) {
++		DWC_WARN("%d invalid for dev_rx_fifo_size parameter\n", val);
++		}
++		val = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dev_rx_fifo_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dev_rx_fifo_size;
++}
++
++int dwc_otg_set_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					      int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 16, 32768)) {
++		DWC_WARN("Wrong value for dev_nperio_tx_fifo\n");
++		DWC_WARN("dev_nperio_tx_fifo must be 16-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> 16)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->dev_nperio_tx_fifo_size)) {
++			DWC_ERROR
++			    ("%d invalid for dev_nperio_tx_fifo_size. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >>
++		     16);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dev_nperio_tx_fifo_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dev_nperio_tx_fifo_size;
++}
++
++int dwc_otg_set_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if,
++					int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 16, 32768)) {
++		DWC_WARN("Wrong value for host_rx_fifo_size\n");
++		DWC_WARN("host_rx_fifo_size must be 16-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > DWC_READ_REG32(&core_if->core_global_regs->grxfsiz)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->host_rx_fifo_size)) {
++			DWC_ERROR
++			    ("%d invalid for host_rx_fifo_size. Check HW configuration.\n",
++			     val);
++		}
++		val = DWC_READ_REG32(&core_if->core_global_regs->grxfsiz);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->host_rx_fifo_size = val;
++	return retval;
++
++}
++
++int32_t dwc_otg_get_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->host_rx_fifo_size;
++}
++
++int dwc_otg_set_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					       int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 16, 32768)) {
++		DWC_WARN("Wrong value for host_nperio_tx_fifo_size\n");
++		DWC_WARN("host_nperio_tx_fifo_size must be 16-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >> 16)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->host_nperio_tx_fifo_size)) {
++			DWC_ERROR
++			    ("%d invalid for host_nperio_tx_fifo_size. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    (DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz) >>
++		     16);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->host_nperio_tx_fifo_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->host_nperio_tx_fifo_size;
++}
++
++int dwc_otg_set_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					      int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 16, 32768)) {
++		DWC_WARN("Wrong value for host_perio_tx_fifo_size\n");
++		DWC_WARN("host_perio_tx_fifo_size must be 16-32768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > ((core_if->hptxfsiz.d32) >> 16)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->host_perio_tx_fifo_size)) {
++			DWC_ERROR
++			    ("%d invalid for host_perio_tx_fifo_size. Check HW configuration.\n",
++			     val);
++		}
++		val = (core_if->hptxfsiz.d32) >> 16;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->host_perio_tx_fifo_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_host_perio_tx_fifo_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->host_perio_tx_fifo_size;
++}
++
++int dwc_otg_set_param_max_transfer_size(dwc_otg_core_if_t * core_if,
++					int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 2047, 524288)) {
++		DWC_WARN("Wrong value for max_transfer_size\n");
++		DWC_WARN("max_transfer_size must be 2047-524288\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val >= (1 << (core_if->hwcfg3.b.xfer_size_cntr_width + 11))) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->max_transfer_size)) {
++			DWC_ERROR
++			    ("%d invalid for max_transfer_size. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 11)) -
++		     1);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->max_transfer_size = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_max_transfer_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->max_transfer_size;
++}
++
++int dwc_otg_set_param_max_packet_count(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 15, 511)) {
++		DWC_WARN("Wrong value for max_packet_count\n");
++		DWC_WARN("max_packet_count must be 15-511\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > (1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4))) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->max_packet_count)) {
++			DWC_ERROR
++			    ("%d invalid for max_packet_count. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    ((1 << (core_if->hwcfg3.b.packet_size_cntr_width + 4)) - 1);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->max_packet_count = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_max_packet_count(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->max_packet_count;
++}
++
++int dwc_otg_set_param_host_channels(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 1, 16)) {
++		DWC_WARN("Wrong value for host_channels\n");
++		DWC_WARN("host_channels must be 1-16\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > (core_if->hwcfg2.b.num_host_chan + 1)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->host_channels)) {
++			DWC_ERROR
++			    ("%d invalid for host_channels. Check HW configurations.\n",
++			     val);
++		}
++		val = (core_if->hwcfg2.b.num_host_chan + 1);
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->host_channels = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_host_channels(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->host_channels;
++}
++
++int dwc_otg_set_param_dev_endpoints(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 1, 15)) {
++		DWC_WARN("Wrong value for dev_endpoints\n");
++		DWC_WARN("dev_endpoints must be 1-15\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val > (core_if->hwcfg2.b.num_dev_ep)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->dev_endpoints)) {
++			DWC_ERROR
++			    ("%d invalid for dev_endpoints. Check HW configurations.\n",
++			     val);
++		}
++		val = core_if->hwcfg2.b.num_dev_ep;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dev_endpoints = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_endpoints(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dev_endpoints;
++}
++
++int dwc_otg_set_param_phy_type(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 2)) {
++		DWC_WARN("Wrong value for phy_type\n");
++		DWC_WARN("phy_type must be 0,1 or 2\n");
++		return -DWC_E_INVALID;
++	}
++#ifndef NO_FS_PHY_HW_CHECKS
++	if ((val == DWC_PHY_TYPE_PARAM_UTMI) &&
++	    ((core_if->hwcfg2.b.hs_phy_type == 1) ||
++	     (core_if->hwcfg2.b.hs_phy_type == 3))) {
++		valid = 1;
++	} else if ((val == DWC_PHY_TYPE_PARAM_ULPI) &&
++		   ((core_if->hwcfg2.b.hs_phy_type == 2) ||
++		    (core_if->hwcfg2.b.hs_phy_type == 3))) {
++		valid = 1;
++	} else if ((val == DWC_PHY_TYPE_PARAM_FS) &&
++		   (core_if->hwcfg2.b.fs_phy_type == 1)) {
++		valid = 1;
++	}
++	if (!valid) {
++		if (dwc_otg_param_initialized(core_if->core_params->phy_type)) {
++			DWC_ERROR
++			    ("%d invalid for phy_type. Check HW configurations.\n",
++			     val);
++		}
++		if (core_if->hwcfg2.b.hs_phy_type) {
++			if ((core_if->hwcfg2.b.hs_phy_type == 3) ||
++			    (core_if->hwcfg2.b.hs_phy_type == 1)) {
++				val = DWC_PHY_TYPE_PARAM_UTMI;
++			} else {
++				val = DWC_PHY_TYPE_PARAM_ULPI;
++			}
++		}
++		retval = -DWC_E_INVALID;
++	}
++#endif
++	core_if->core_params->phy_type = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_phy_type(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->phy_type;
++}
++
++int dwc_otg_set_param_speed(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for speed parameter\n");
++		DWC_WARN("max_speed parameter must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++	if ((val == 0)
++	    && dwc_otg_get_param_phy_type(core_if) == DWC_PHY_TYPE_PARAM_FS) {
++		if (dwc_otg_param_initialized(core_if->core_params->speed)) {
++			DWC_ERROR
++			    ("%d invalid for speed paremter. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    (dwc_otg_get_param_phy_type(core_if) ==
++		     DWC_PHY_TYPE_PARAM_FS ? 1 : 0);
++		retval = -DWC_E_INVALID;
++	}
++	core_if->core_params->speed = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_speed(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->speed;
++}
++
++int dwc_otg_set_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * core_if,
++						int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN
++		    ("Wrong value for host_ls_low_power_phy_clk parameter\n");
++		DWC_WARN("host_ls_low_power_phy_clk must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ)
++	    && (dwc_otg_get_param_phy_type(core_if) == DWC_PHY_TYPE_PARAM_FS)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->host_ls_low_power_phy_clk)) {
++			DWC_ERROR
++			    ("%d invalid for host_ls_low_power_phy_clk. Check HW configuration.\n",
++			     val);
++		}
++		val =
++		    (dwc_otg_get_param_phy_type(core_if) ==
++		     DWC_PHY_TYPE_PARAM_FS) ?
++		    DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ :
++		    DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->host_ls_low_power_phy_clk = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->host_ls_low_power_phy_clk;
++}
++
++int dwc_otg_set_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for phy_ulpi_ddr\n");
++		DWC_WARN("phy_upli_ddr must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->phy_ulpi_ddr = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->phy_ulpi_ddr;
++}
++
++int dwc_otg_set_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if,
++					int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong valaue for phy_ulpi_ext_vbus\n");
++		DWC_WARN("phy_ulpi_ext_vbus must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->phy_ulpi_ext_vbus = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->phy_ulpi_ext_vbus;
++}
++
++int dwc_otg_set_param_phy_utmi_width(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 8, 8) && DWC_OTG_PARAM_TEST(val, 16, 16)) {
++		DWC_WARN("Wrong valaue for phy_utmi_width\n");
++		DWC_WARN("phy_utmi_width must be 8 or 16\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->phy_utmi_width = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_phy_utmi_width(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->phy_utmi_width;
++}
++
++int dwc_otg_set_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong valaue for ulpi_fs_ls\n");
++		DWC_WARN("ulpi_fs_ls must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->ulpi_fs_ls = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->ulpi_fs_ls;
++}
++
++int dwc_otg_set_param_ts_dline(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong valaue for ts_dline\n");
++		DWC_WARN("ts_dline must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->ts_dline = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_ts_dline(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->ts_dline;
++}
++
++int dwc_otg_set_param_i2c_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong valaue for i2c_enable\n");
++		DWC_WARN("i2c_enable must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++#ifndef NO_FS_PHY_HW_CHECK
++	if (val == 1 && core_if->hwcfg3.b.i2c == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->i2c_enable)) {
++			DWC_ERROR
++			    ("%d invalid for i2c_enable. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++#endif
++
++	core_if->core_params->i2c_enable = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_i2c_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->i2c_enable;
++}
++
++int dwc_otg_set_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					     int32_t val, int fifo_num)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 4, 768)) {
++		DWC_WARN("Wrong value for dev_perio_tx_fifo_size\n");
++		DWC_WARN("dev_perio_tx_fifo_size must be 4-768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val >
++	    (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]))) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->dev_perio_tx_fifo_size[fifo_num])) {
++			DWC_ERROR
++			    ("`%d' invalid for parameter `dev_perio_fifo_size_%d'. Check HW configuration.\n",
++			     val, fifo_num);
++		}
++		val = (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]));
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dev_perio_tx_fifo_size[fifo_num] = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++						 int fifo_num)
++{
++	return core_if->core_params->dev_perio_tx_fifo_size[fifo_num];
++}
++
++int dwc_otg_set_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if,
++					  int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong valaue for en_multiple_tx_fifo,\n");
++		DWC_WARN("en_multiple_tx_fifo must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val == 1 && core_if->hwcfg4.b.ded_fifo_en == 0) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->en_multiple_tx_fifo)) {
++			DWC_ERROR
++			    ("%d invalid for parameter en_multiple_tx_fifo. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->en_multiple_tx_fifo = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->en_multiple_tx_fifo;
++}
++
++int dwc_otg_set_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if, int32_t val,
++				       int fifo_num)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 4, 768)) {
++		DWC_WARN("Wrong value for dev_tx_fifo_size\n");
++		DWC_WARN("dev_tx_fifo_size must be 4-768\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val >
++	    (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]))) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->dev_tx_fifo_size[fifo_num])) {
++			DWC_ERROR
++			    ("`%d' invalid for parameter `dev_tx_fifo_size_%d'. Check HW configuration.\n",
++			     val, fifo_num);
++		}
++		val = (DWC_READ_REG32(&core_if->core_global_regs->dtxfsiz[fifo_num]));
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->dev_tx_fifo_size[fifo_num] = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					   int fifo_num)
++{
++	return core_if->core_params->dev_tx_fifo_size[fifo_num];
++}
++
++int dwc_otg_set_param_thr_ctl(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 7)) {
++		DWC_WARN("Wrong value for thr_ctl\n");
++		DWC_WARN("thr_ctl must be 0-7\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val != 0) &&
++	    (!dwc_otg_get_param_dma_enable(core_if) ||
++	     !core_if->hwcfg4.b.ded_fifo_en)) {
++		if (dwc_otg_param_initialized(core_if->core_params->thr_ctl)) {
++			DWC_ERROR
++			    ("%d invalid for parameter thr_ctl. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->thr_ctl = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_thr_ctl(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->thr_ctl;
++}
++
++int dwc_otg_set_param_lpm_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("Wrong value for lpm_enable\n");
++		DWC_WARN("lpm_enable must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val && !core_if->hwcfg3.b.otg_lpm_en) {
++		if (dwc_otg_param_initialized(core_if->core_params->lpm_enable)) {
++			DWC_ERROR
++			    ("%d invalid for parameter lpm_enable. Check HW configuration.\n",
++			     val);
++		}
++		val = 0;
++		retval = -DWC_E_INVALID;
++	}
++
++	core_if->core_params->lpm_enable = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_lpm_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->lpm_enable;
++}
++
++int dwc_otg_set_param_tx_thr_length(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 8, 128)) {
++		DWC_WARN("Wrong valaue for tx_thr_length\n");
++		DWC_WARN("tx_thr_length must be 8 - 128\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->tx_thr_length = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_tx_thr_length(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->tx_thr_length;
++}
++
++int dwc_otg_set_param_rx_thr_length(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 8, 128)) {
++		DWC_WARN("Wrong valaue for rx_thr_length\n");
++		DWC_WARN("rx_thr_length must be 8 - 128\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->rx_thr_length = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_rx_thr_length(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->rx_thr_length;
++}
++
++int dwc_otg_set_param_dma_burst_size(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	if (DWC_OTG_PARAM_TEST(val, 1, 1) &&
++	    DWC_OTG_PARAM_TEST(val, 4, 4) &&
++	    DWC_OTG_PARAM_TEST(val, 8, 8) &&
++	    DWC_OTG_PARAM_TEST(val, 16, 16) &&
++	    DWC_OTG_PARAM_TEST(val, 32, 32) &&
++	    DWC_OTG_PARAM_TEST(val, 64, 64) &&
++	    DWC_OTG_PARAM_TEST(val, 128, 128) &&
++	    DWC_OTG_PARAM_TEST(val, 256, 256)) {
++		DWC_WARN("`%d' invalid for parameter `dma_burst_size'\n", val);
++		return -DWC_E_INVALID;
++	}
++	core_if->core_params->dma_burst_size = val;
++	return 0;
++}
++
++int32_t dwc_otg_get_param_dma_burst_size(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dma_burst_size;
++}
++
++int dwc_otg_set_param_pti_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `pti_enable'\n", val);
++		return -DWC_E_INVALID;
++	}
++	if (val && (core_if->snpsid < OTG_CORE_REV_2_72a)) {
++		if (dwc_otg_param_initialized(core_if->core_params->pti_enable)) {
++			DWC_ERROR
++			    ("%d invalid for parameter pti_enable. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->pti_enable = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_pti_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->pti_enable;
++}
++
++int dwc_otg_set_param_mpi_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `mpi_enable'\n", val);
++		return -DWC_E_INVALID;
++	}
++	if (val && (core_if->hwcfg2.b.multi_proc_int == 0)) {
++		if (dwc_otg_param_initialized(core_if->core_params->mpi_enable)) {
++			DWC_ERROR
++			    ("%d invalid for parameter mpi_enable. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->mpi_enable = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_mpi_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->mpi_enable;
++}
++
++int dwc_otg_set_param_adp_enable(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `adp_enable'\n", val);
++		return -DWC_E_INVALID;
++	}
++	if (val && (core_if->hwcfg3.b.adp_supp == 0)) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->adp_supp_enable)) {
++			DWC_ERROR
++			    ("%d invalid for parameter adp_enable. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->adp_supp_enable = val;
++	/*Set OTG version 2.0 in case of enabling ADP*/
++	if (val)
++		dwc_otg_set_param_otg_ver(core_if, 1);
++
++	return retval;
++}
++
++int32_t dwc_otg_get_param_adp_enable(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->adp_supp_enable;
++}
++
++int dwc_otg_set_param_ic_usb_cap(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `ic_usb_cap'\n", val);
++		DWC_WARN("ic_usb_cap must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val && (core_if->hwcfg2.b.otg_enable_ic_usb == 0)) {
++		if (dwc_otg_param_initialized(core_if->core_params->ic_usb_cap)) {
++			DWC_ERROR
++			    ("%d invalid for parameter ic_usb_cap. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->ic_usb_cap = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_ic_usb_cap(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->ic_usb_cap;
++}
++
++int dwc_otg_set_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 3)) {
++		DWC_WARN("`%d' invalid for parameter `ahb_thr_ratio'\n", val);
++		DWC_WARN("ahb_thr_ratio must be 0 - 3\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (val
++	    && (core_if->snpsid < OTG_CORE_REV_2_81a
++		|| !dwc_otg_get_param_thr_ctl(core_if))) {
++		valid = 0;
++	} else if (val
++		   && ((dwc_otg_get_param_tx_thr_length(core_if) / (1 << val)) <
++		       4)) {
++		valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized
++		    (core_if->core_params->ahb_thr_ratio)) {
++			DWC_ERROR
++			    ("%d invalid for parameter ahb_thr_ratio. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++
++	core_if->core_params->ahb_thr_ratio = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->ahb_thr_ratio;
++}
++
++int dwc_otg_set_param_power_down(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++	hwcfg4_data_t hwcfg4 = {.d32 = 0 };
++	hwcfg4.d32 = DWC_READ_REG32(&core_if->core_global_regs->ghwcfg4);
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 3)) {
++		DWC_WARN("`%d' invalid for parameter `power_down'\n", val);
++		DWC_WARN("power_down must be 0 - 2\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 2) && (core_if->snpsid < OTG_CORE_REV_2_91a)) {
++		valid = 0;
++	}
++	if ((val == 3)
++	    && ((core_if->snpsid < OTG_CORE_REV_3_00a)
++		|| (hwcfg4.b.xhiber == 0))) {
++		valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->power_down)) {
++			DWC_ERROR
++			    ("%d invalid for parameter power_down. Check HW configuration.\n",
++			     val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->power_down = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_power_down(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->power_down;
++}
++
++int dwc_otg_set_param_reload_ctl(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `reload_ctl'\n", val);
++		DWC_WARN("reload_ctl must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && (core_if->snpsid < OTG_CORE_REV_2_92a)) {
++		valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->reload_ctl)) {
++			DWC_ERROR("%d invalid for parameter reload_ctl."
++				  "Check HW configuration.\n", val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->reload_ctl = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_reload_ctl(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->reload_ctl;
++}
++
++int dwc_otg_set_param_dev_out_nak(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `dev_out_nak'\n", val);
++		DWC_WARN("dev_out_nak must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && ((core_if->snpsid < OTG_CORE_REV_2_93a) ||
++		!(core_if->core_params->dma_desc_enable))) {
++		valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->dev_out_nak)) {
++			DWC_ERROR("%d invalid for parameter dev_out_nak."
++				"Check HW configuration.\n", val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->dev_out_nak = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_dev_out_nak(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->dev_out_nak;
++}
++
++int dwc_otg_set_param_cont_on_bna(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `cont_on_bna'\n", val);
++		DWC_WARN("cont_on_bna must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && ((core_if->snpsid < OTG_CORE_REV_2_94a) ||
++		!(core_if->core_params->dma_desc_enable))) {
++			valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->cont_on_bna)) {
++			DWC_ERROR("%d invalid for parameter cont_on_bna."
++				"Check HW configuration.\n", val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->cont_on_bna = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_cont_on_bna(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->cont_on_bna;
++}
++
++int dwc_otg_set_param_ahb_single(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++	int valid = 1;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `ahb_single'\n", val);
++		DWC_WARN("ahb_single must be 0 or 1\n");
++		return -DWC_E_INVALID;
++	}
++
++	if ((val == 1) && (core_if->snpsid < OTG_CORE_REV_2_94a)) {
++			valid = 0;
++	}
++	if (valid == 0) {
++		if (dwc_otg_param_initialized(core_if->core_params->ahb_single)) {
++			DWC_ERROR("%d invalid for parameter ahb_single."
++				"Check HW configuration.\n", val);
++		}
++		retval = -DWC_E_INVALID;
++		val = 0;
++	}
++	core_if->core_params->ahb_single = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_ahb_single(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->ahb_single;
++}
++
++int dwc_otg_set_param_otg_ver(dwc_otg_core_if_t * core_if, int32_t val)
++{
++	int retval = 0;
++
++	if (DWC_OTG_PARAM_TEST(val, 0, 1)) {
++		DWC_WARN("`%d' invalid for parameter `otg_ver'\n", val);
++		DWC_WARN
++		    ("otg_ver must be 0(for OTG 1.3 support) or 1(for OTG 2.0 support)\n");
++		return -DWC_E_INVALID;
++	}
++
++	core_if->core_params->otg_ver = val;
++	return retval;
++}
++
++int32_t dwc_otg_get_param_otg_ver(dwc_otg_core_if_t * core_if)
++{
++	return core_if->core_params->otg_ver;
++}
++
++uint32_t dwc_otg_get_hnpstatus(dwc_otg_core_if_t * core_if)
++{
++	gotgctl_data_t otgctl;
++	otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++	return otgctl.b.hstnegscs;
++}
++
++uint32_t dwc_otg_get_srpstatus(dwc_otg_core_if_t * core_if)
++{
++	gotgctl_data_t otgctl;
++	otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++	return otgctl.b.sesreqscs;
++}
++
++void dwc_otg_set_hnpreq(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	if(core_if->otg_ver == 0) {
++		gotgctl_data_t otgctl;
++		otgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++		otgctl.b.hnpreq = val;
++		DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, otgctl.d32);
++	} else {
++		core_if->otg_sts = val;
++	}
++}
++
++uint32_t dwc_otg_get_gsnpsid(dwc_otg_core_if_t * core_if)
++{
++	return core_if->snpsid;
++}
++
++uint32_t dwc_otg_get_mode(dwc_otg_core_if_t * core_if)
++{
++	gintsts_data_t gintsts;
++	gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++	return gintsts.b.curmode;
++}
++
++uint32_t dwc_otg_get_hnpcapable(dwc_otg_core_if_t * core_if)
++{
++	gusbcfg_data_t usbcfg;
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	return usbcfg.b.hnpcap;
++}
++
++void dwc_otg_set_hnpcapable(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	gusbcfg_data_t usbcfg;
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	usbcfg.b.hnpcap = val;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, usbcfg.d32);
++}
++
++uint32_t dwc_otg_get_srpcapable(dwc_otg_core_if_t * core_if)
++{
++	gusbcfg_data_t usbcfg;
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	return usbcfg.b.srpcap;
++}
++
++void dwc_otg_set_srpcapable(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	gusbcfg_data_t usbcfg;
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	usbcfg.b.srpcap = val;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, usbcfg.d32);
++}
++
++uint32_t dwc_otg_get_devspeed(dwc_otg_core_if_t * core_if)
++{
++	dcfg_data_t dcfg;
++	/* originally: dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg); */
++
++        dcfg.d32 = -1; //GRAYG
++        DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)\n", __func__, core_if);
++        if (NULL == core_if)
++                DWC_ERROR("reg request with NULL core_if\n");
++        DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)->dev_if(%p)\n", __func__,
++                    core_if, core_if->dev_if);
++        if (NULL == core_if->dev_if)
++                DWC_ERROR("reg request with NULL dev_if\n");
++        DWC_DEBUGPL(DBG_CILV, "%s - core_if(%p)->dev_if(%p)->"
++                    "dev_global_regs(%p)\n", __func__,
++                    core_if, core_if->dev_if,
++                    core_if->dev_if->dev_global_regs);
++        if (NULL == core_if->dev_if->dev_global_regs)
++                DWC_ERROR("reg request with NULL dev_global_regs\n");
++        else {
++                DWC_DEBUGPL(DBG_CILV, "%s - &core_if(%p)->dev_if(%p)->"
++                            "dev_global_regs(%p)->dcfg = %p\n", __func__,
++                            core_if, core_if->dev_if,
++                            core_if->dev_if->dev_global_regs,
++                            &core_if->dev_if->dev_global_regs->dcfg);
++		dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++        }
++	return dcfg.b.devspd;
++}
++
++void dwc_otg_set_devspeed(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	dcfg_data_t dcfg;
++	dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++	dcfg.b.devspd = val;
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, dcfg.d32);
++}
++
++uint32_t dwc_otg_get_busconnected(dwc_otg_core_if_t * core_if)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
++	return hprt0.b.prtconnsts;
++}
++
++uint32_t dwc_otg_get_enumspeed(dwc_otg_core_if_t * core_if)
++{
++	dsts_data_t dsts;
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++	return dsts.b.enumspd;
++}
++
++uint32_t dwc_otg_get_prtpower(dwc_otg_core_if_t * core_if)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
++	return hprt0.b.prtpwr;
++
++}
++
++uint32_t dwc_otg_get_core_state(dwc_otg_core_if_t * core_if)
++{
++	return core_if->hibernation_suspend;
++}
++
++void dwc_otg_set_prtpower(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	hprt0.b.prtpwr = val;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++}
++
++uint32_t dwc_otg_get_prtsuspend(dwc_otg_core_if_t * core_if)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
++	return hprt0.b.prtsusp;
++
++}
++
++void dwc_otg_set_prtsuspend(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	hprt0.b.prtsusp = val;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++}
++
++uint32_t dwc_otg_get_fr_interval(dwc_otg_core_if_t * core_if)
++{
++	hfir_data_t hfir;
++	hfir.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir);
++	return hfir.b.frint;
++
++}
++
++void dwc_otg_set_fr_interval(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	hfir_data_t hfir;
++	uint32_t fram_int;
++	fram_int = calc_frame_interval(core_if);
++	hfir.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hfir);
++	if (!core_if->core_params->reload_ctl) {
++		DWC_WARN("\nCannot reload HFIR register.HFIR.HFIRRldCtrl bit is"
++			 "not set to 1.\nShould load driver with reload_ctl=1"
++			 " module parameter\n");
++		return;
++	}
++	switch (fram_int) {
++	case 3750:
++		if ((val < 3350) || (val > 4150)) {
++			DWC_WARN("HFIR interval for HS core and 30 MHz"
++				 "clock freq should be from 3350 to 4150\n");
++			return;
++		}
++		break;
++	case 30000:
++		if ((val < 26820) || (val > 33180)) {
++			DWC_WARN("HFIR interval for FS/LS core and 30 MHz"
++				 "clock freq should be from 26820 to 33180\n");
++			return;
++		}
++		break;
++	case 6000:
++		if ((val < 5360) || (val > 6640)) {
++			DWC_WARN("HFIR interval for HS core and 48 MHz"
++				 "clock freq should be from 5360 to 6640\n");
++			return;
++		}
++		break;
++	case 48000:
++		if ((val < 42912) || (val > 53088)) {
++			DWC_WARN("HFIR interval for FS/LS core and 48 MHz"
++				 "clock freq should be from 42912 to 53088\n");
++			return;
++		}
++		break;
++	case 7500:
++		if ((val < 6700) || (val > 8300)) {
++			DWC_WARN("HFIR interval for HS core and 60 MHz"
++				 "clock freq should be from 6700 to 8300\n");
++			return;
++		}
++		break;
++	case 60000:
++		if ((val < 53640) || (val > 65536)) {
++			DWC_WARN("HFIR interval for FS/LS core and 60 MHz"
++				 "clock freq should be from 53640 to 65536\n");
++			return;
++		}
++		break;
++	default:
++		DWC_WARN("Unknown frame interval\n");
++		return;
++		break;
++
++	}
++	hfir.b.frint = val;
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hfir, hfir.d32);
++}
++
++uint32_t dwc_otg_get_mode_ch_tim(dwc_otg_core_if_t * core_if)
++{
++	hcfg_data_t hcfg;
++	hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg);
++	return hcfg.b.modechtimen;
++
++}
++
++void dwc_otg_set_mode_ch_tim(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	hcfg_data_t hcfg;
++	hcfg.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->hcfg);
++	hcfg.b.modechtimen = val;
++	DWC_WRITE_REG32(&core_if->host_if->host_global_regs->hcfg, hcfg.d32);
++}
++
++void dwc_otg_set_prtresume(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	hprt0.b.prtres = val;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++}
++
++uint32_t dwc_otg_get_remotewakesig(dwc_otg_core_if_t * core_if)
++{
++	dctl_data_t dctl;
++	dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
++	return dctl.b.rmtwkupsig;
++}
++
++uint32_t dwc_otg_get_lpm_portsleepstatus(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++
++	DWC_ASSERT(!
++		   ((core_if->lx_state == DWC_OTG_L1) ^ lpmcfg.b.prt_sleep_sts),
++		   "lx_state = %d, lmpcfg.prt_sleep_sts = %d\n",
++		   core_if->lx_state, lpmcfg.b.prt_sleep_sts);
++
++	return lpmcfg.b.prt_sleep_sts;
++}
++
++uint32_t dwc_otg_get_lpm_remotewakeenabled(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	return lpmcfg.b.rem_wkup_en;
++}
++
++uint32_t dwc_otg_get_lpmresponse(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	return lpmcfg.b.appl_resp;
++}
++
++void dwc_otg_set_lpmresponse(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	lpmcfg.b.appl_resp = val;
++	DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++}
++
++uint32_t dwc_otg_get_hsic_connect(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	return lpmcfg.b.hsic_connect;
++}
++
++void dwc_otg_set_hsic_connect(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	lpmcfg.b.hsic_connect = val;
++	DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++}
++
++uint32_t dwc_otg_get_inv_sel_hsic(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	return lpmcfg.b.inv_sel_hsic;
++
++}
++
++void dwc_otg_set_inv_sel_hsic(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	glpmcfg_data_t lpmcfg;
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	lpmcfg.b.inv_sel_hsic = val;
++	DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++}
++
++uint32_t dwc_otg_get_gotgctl(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++}
++
++void dwc_otg_set_gotgctl(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->gotgctl, val);
++}
++
++uint32_t dwc_otg_get_gusbcfg(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++}
++
++void dwc_otg_set_gusbcfg(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, val);
++}
++
++uint32_t dwc_otg_get_grxfsiz(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->grxfsiz);
++}
++
++void dwc_otg_set_grxfsiz(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->grxfsiz, val);
++}
++
++uint32_t dwc_otg_get_gnptxfsiz(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->gnptxfsiz);
++}
++
++void dwc_otg_set_gnptxfsiz(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->gnptxfsiz, val);
++}
++
++uint32_t dwc_otg_get_gpvndctl(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->gpvndctl);
++}
++
++void dwc_otg_set_gpvndctl(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->gpvndctl, val);
++}
++
++uint32_t dwc_otg_get_ggpio(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->ggpio);
++}
++
++void dwc_otg_set_ggpio(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, val);
++}
++
++uint32_t dwc_otg_get_hprt0(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(core_if->host_if->hprt0);
++
++}
++
++void dwc_otg_set_hprt0(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(core_if->host_if->hprt0, val);
++}
++
++uint32_t dwc_otg_get_guid(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->guid);
++}
++
++void dwc_otg_set_guid(dwc_otg_core_if_t * core_if, uint32_t val)
++{
++	DWC_WRITE_REG32(&core_if->core_global_regs->guid, val);
++}
++
++uint32_t dwc_otg_get_hptxfsiz(dwc_otg_core_if_t * core_if)
++{
++	return DWC_READ_REG32(&core_if->core_global_regs->hptxfsiz);
++}
++
++uint16_t dwc_otg_get_otg_version(dwc_otg_core_if_t * core_if)
++{
++	return ((core_if->otg_ver == 1) ? (uint16_t)0x0200 : (uint16_t)0x0103);
++}
++
++/**
++ * Start the SRP timer to detect when the SRP does not complete within
++ * 6 seconds.
++ *
++ * @param core_if the pointer to core_if strucure.
++ */
++void dwc_otg_pcd_start_srp_timer(dwc_otg_core_if_t * core_if)
++{
++	core_if->srp_timer_started = 1;
++	DWC_TIMER_SCHEDULE(core_if->srp_timer, 6000 /* 6 secs */ );
++}
++
++void dwc_otg_initiate_srp(dwc_otg_core_if_t * core_if)
++{
++	uint32_t *addr = (uint32_t *) & (core_if->core_global_regs->gotgctl);
++	gotgctl_data_t mem;
++	gotgctl_data_t val;
++
++	val.d32 = DWC_READ_REG32(addr);
++	if (val.b.sesreq) {
++		DWC_ERROR("Session Request Already active!\n");
++		return;
++	}
++
++	DWC_INFO("Session Request Initated\n");	//NOTICE
++	mem.d32 = DWC_READ_REG32(addr);
++	mem.b.sesreq = 1;
++	DWC_WRITE_REG32(addr, mem.d32);
++
++	/* Start the SRP timer */
++	dwc_otg_pcd_start_srp_timer(core_if);
++	return;
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cil.h
+@@ -0,0 +1,1464 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil.h $
++ * $Revision: #123 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#if !defined(__DWC_CIL_H__)
++#define __DWC_CIL_H__
++
++#include "dwc_list.h"
++#include "dwc_otg_dbg.h"
++#include "dwc_otg_regs.h"
++
++#include "dwc_otg_core_if.h"
++#include "dwc_otg_adp.h"
++
++/**
++ * @file
++ * This file contains the interface to the Core Interface Layer.
++ */
++
++#ifdef DWC_UTE_CFI
++
++#define MAX_DMA_DESCS_PER_EP	256
++
++/**
++ * Enumeration for the data buffer mode
++ */
++typedef enum _data_buffer_mode {
++	BM_STANDARD = 0,	/* data buffer is in normal mode */
++	BM_SG = 1,		/* data buffer uses the scatter/gather mode */
++	BM_CONCAT = 2,		/* data buffer uses the concatenation mode */
++	BM_CIRCULAR = 3,	/* data buffer uses the circular DMA mode */
++	BM_ALIGN = 4		/* data buffer is in buffer alignment mode */
++} data_buffer_mode_e;
++#endif //DWC_UTE_CFI
++
++/** Macros defined for DWC OTG HW Release version */
++
++#define OTG_CORE_REV_2_60a	0x4F54260A
++#define OTG_CORE_REV_2_71a	0x4F54271A
++#define OTG_CORE_REV_2_72a	0x4F54272A
++#define OTG_CORE_REV_2_80a	0x4F54280A
++#define OTG_CORE_REV_2_81a	0x4F54281A
++#define OTG_CORE_REV_2_90a	0x4F54290A
++#define OTG_CORE_REV_2_91a	0x4F54291A
++#define OTG_CORE_REV_2_92a	0x4F54292A
++#define OTG_CORE_REV_2_93a	0x4F54293A
++#define OTG_CORE_REV_2_94a	0x4F54294A
++#define OTG_CORE_REV_3_00a	0x4F54300A
++
++/**
++ * Information for each ISOC packet.
++ */
++typedef struct iso_pkt_info {
++	uint32_t offset;
++	uint32_t length;
++	int32_t status;
++} iso_pkt_info_t;
++
++/**
++ * The <code>dwc_ep</code> structure represents the state of a single
++ * endpoint when acting in device mode. It contains the data items
++ * needed for an endpoint to be activated and transfer packets.
++ */
++typedef struct dwc_ep {
++	/** EP number used for register address lookup */
++	uint8_t num;
++	/** EP direction 0 = OUT */
++	unsigned is_in:1;
++	/** EP active. */
++	unsigned active:1;
++
++	/**
++	 * Periodic Tx FIFO # for IN EPs For INTR EP set to 0 to use non-periodic
++	 * Tx FIFO. If dedicated Tx FIFOs are enabled Tx FIFO # FOR IN EPs*/
++	unsigned tx_fifo_num:4;
++	/** EP type: 0 - Control, 1 - ISOC,	 2 - BULK,	3 - INTR */
++	unsigned type:2;
++#define DWC_OTG_EP_TYPE_CONTROL	   0
++#define DWC_OTG_EP_TYPE_ISOC	   1
++#define DWC_OTG_EP_TYPE_BULK	   2
++#define DWC_OTG_EP_TYPE_INTR	   3
++
++	/** DATA start PID for INTR and BULK EP */
++	unsigned data_pid_start:1;
++	/** Frame (even/odd) for ISOC EP */
++	unsigned even_odd_frame:1;
++	/** Max Packet bytes */
++	unsigned maxpacket:11;
++
++	/** Max Transfer size */
++	uint32_t maxxfer;
++
++	/** @name Transfer state */
++	/** @{ */
++
++	/**
++	 * Pointer to the beginning of the transfer buffer -- do not modify
++	 * during transfer.
++	 */
++
++	dwc_dma_t dma_addr;
++
++	dwc_dma_t dma_desc_addr;
++	dwc_otg_dev_dma_desc_t *desc_addr;
++
++	uint8_t *start_xfer_buff;
++	/** pointer to the transfer buffer */
++	uint8_t *xfer_buff;
++	/** Number of bytes to transfer */
++	unsigned xfer_len:19;
++	/** Number of bytes transferred. */
++	unsigned xfer_count:19;
++	/** Sent ZLP */
++	unsigned sent_zlp:1;
++	/** Total len for control transfer */
++	unsigned total_len:19;
++
++	/** stall clear flag */
++	unsigned stall_clear_flag:1;
++
++	/** SETUP pkt cnt rollover flag for EP0 out*/
++	unsigned stp_rollover;
++
++#ifdef DWC_UTE_CFI
++	/* The buffer mode */
++	data_buffer_mode_e buff_mode;
++
++	/* The chain of DMA descriptors.
++	 * MAX_DMA_DESCS_PER_EP will be allocated for each active EP.
++	 */
++	dwc_otg_dma_desc_t *descs;
++
++	/* The DMA address of the descriptors chain start */
++	dma_addr_t descs_dma_addr;
++	/** This variable stores the length of the last enqueued request */
++	uint32_t cfi_req_len;
++#endif				//DWC_UTE_CFI
++
++/** Max DMA Descriptor count for any EP */
++#define MAX_DMA_DESC_CNT 256
++	/** Allocated DMA Desc count */
++	uint32_t desc_cnt;
++
++	/** bInterval */
++	uint32_t bInterval;
++	/** Next frame num to setup next ISOC transfer */
++	uint32_t frame_num;
++	/** Indicates SOF number overrun in DSTS */
++	uint8_t frm_overrun;
++
++#ifdef DWC_UTE_PER_IO
++	/** Next frame num for which will be setup DMA Desc */
++	uint32_t xiso_frame_num;
++	/** bInterval */
++	uint32_t xiso_bInterval;
++	/** Count of currently active transfers - shall be either 0 or 1 */
++	int xiso_active_xfers;
++	int xiso_queued_xfers;
++#endif
++#ifdef DWC_EN_ISOC
++	/**
++	 * Variables specific for ISOC EPs
++	 *
++	 */
++	/** DMA addresses of ISOC buffers */
++	dwc_dma_t dma_addr0;
++	dwc_dma_t dma_addr1;
++
++	dwc_dma_t iso_dma_desc_addr;
++	dwc_otg_dev_dma_desc_t *iso_desc_addr;
++
++	/** pointer to the transfer buffers */
++	uint8_t *xfer_buff0;
++	uint8_t *xfer_buff1;
++
++	/** number of ISOC Buffer is processing */
++	uint32_t proc_buf_num;
++	/** Interval of ISOC Buffer processing */
++	uint32_t buf_proc_intrvl;
++	/** Data size for regular frame */
++	uint32_t data_per_frame;
++
++	/* todo - pattern data support is to be implemented in the future */
++	/** Data size for pattern frame */
++	uint32_t data_pattern_frame;
++	/** Frame number of pattern data */
++	uint32_t sync_frame;
++
++	/** bInterval */
++	uint32_t bInterval;
++	/** ISO Packet number per frame */
++	uint32_t pkt_per_frm;
++	/** Next frame num for which will be setup DMA Desc */
++	uint32_t next_frame;
++	/** Number of packets per buffer processing */
++	uint32_t pkt_cnt;
++	/** Info for all isoc packets */
++	iso_pkt_info_t *pkt_info;
++	/** current pkt number */
++	uint32_t cur_pkt;
++	/** current pkt number */
++	uint8_t *cur_pkt_addr;
++	/** current pkt number */
++	uint32_t cur_pkt_dma_addr;
++#endif				/* DWC_EN_ISOC */
++
++/** @} */
++} dwc_ep_t;
++
++/*
++ * Reasons for halting a host channel.
++ */
++typedef enum dwc_otg_halt_status {
++	DWC_OTG_HC_XFER_NO_HALT_STATUS,
++	DWC_OTG_HC_XFER_COMPLETE,
++	DWC_OTG_HC_XFER_URB_COMPLETE,
++	DWC_OTG_HC_XFER_ACK,
++	DWC_OTG_HC_XFER_NAK,
++	DWC_OTG_HC_XFER_NYET,
++	DWC_OTG_HC_XFER_STALL,
++	DWC_OTG_HC_XFER_XACT_ERR,
++	DWC_OTG_HC_XFER_FRAME_OVERRUN,
++	DWC_OTG_HC_XFER_BABBLE_ERR,
++	DWC_OTG_HC_XFER_DATA_TOGGLE_ERR,
++	DWC_OTG_HC_XFER_AHB_ERR,
++	DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE,
++	DWC_OTG_HC_XFER_URB_DEQUEUE
++} dwc_otg_halt_status_e;
++
++/**
++ * Host channel descriptor. This structure represents the state of a single
++ * host channel when acting in host mode. It contains the data items needed to
++ * transfer packets to an endpoint via a host channel.
++ */
++typedef struct dwc_hc {
++	/** Host channel number used for register address lookup */
++	uint8_t hc_num;
++
++	/** Device to access */
++	unsigned dev_addr:7;
++
++	/** EP to access */
++	unsigned ep_num:4;
++
++	/** EP direction. 0: OUT, 1: IN */
++	unsigned ep_is_in:1;
++
++	/**
++	 * EP speed.
++	 * One of the following values:
++	 *	- DWC_OTG_EP_SPEED_LOW
++	 *	- DWC_OTG_EP_SPEED_FULL
++	 *	- DWC_OTG_EP_SPEED_HIGH
++	 */
++	unsigned speed:2;
++#define DWC_OTG_EP_SPEED_LOW	0
++#define DWC_OTG_EP_SPEED_FULL	1
++#define DWC_OTG_EP_SPEED_HIGH	2
++
++	/**
++	 * Endpoint type.
++	 * One of the following values:
++	 *	- DWC_OTG_EP_TYPE_CONTROL: 0
++	 *	- DWC_OTG_EP_TYPE_ISOC: 1
++	 *	- DWC_OTG_EP_TYPE_BULK: 2
++	 *	- DWC_OTG_EP_TYPE_INTR: 3
++	 */
++	unsigned ep_type:2;
++
++	/** Max packet size in bytes */
++	unsigned max_packet:11;
++
++	/**
++	 * PID for initial transaction.
++	 * 0: DATA0,<br>
++	 * 1: DATA2,<br>
++	 * 2: DATA1,<br>
++	 * 3: MDATA (non-Control EP),
++	 *	  SETUP (Control EP)
++	 */
++	unsigned data_pid_start:2;
++#define DWC_OTG_HC_PID_DATA0 0
++#define DWC_OTG_HC_PID_DATA2 1
++#define DWC_OTG_HC_PID_DATA1 2
++#define DWC_OTG_HC_PID_MDATA 3
++#define DWC_OTG_HC_PID_SETUP 3
++
++	/** Number of periodic transactions per (micro)frame */
++	unsigned multi_count:2;
++
++	/** @name Transfer State */
++	/** @{ */
++
++	/** Pointer to the current transfer buffer position. */
++	uint8_t *xfer_buff;
++	/**
++	 * In Buffer DMA mode this buffer will be used
++	 * if xfer_buff is not DWORD aligned.
++	 */
++	dwc_dma_t align_buff;
++	/** Total number of bytes to transfer. */
++	uint32_t xfer_len;
++	/** Number of bytes transferred so far. */
++	uint32_t xfer_count;
++	/** Packet count at start of transfer.*/
++	uint16_t start_pkt_count;
++
++	/**
++	 * Flag to indicate whether the transfer has been started. Set to 1 if
++	 * it has been started, 0 otherwise.
++	 */
++	uint8_t xfer_started;
++
++	/**
++	 * Set to 1 to indicate that a PING request should be issued on this
++	 * channel. If 0, process normally.
++	 */
++	uint8_t do_ping;
++
++	/**
++	 * Set to 1 to indicate that the error count for this transaction is
++	 * non-zero. Set to 0 if the error count is 0.
++	 */
++	uint8_t error_state;
++
++	/**
++	 * Set to 1 to indicate that this channel should be halted the next
++	 * time a request is queued for the channel. This is necessary in
++	 * slave mode if no request queue space is available when an attempt
++	 * is made to halt the channel.
++	 */
++	uint8_t halt_on_queue;
++
++	/**
++	 * Set to 1 if the host channel has been halted, but the core is not
++	 * finished flushing queued requests. Otherwise 0.
++	 */
++	uint8_t halt_pending;
++
++	/**
++	 * Reason for halting the host channel.
++	 */
++	dwc_otg_halt_status_e halt_status;
++
++	/*
++	 * Split settings for the host channel
++	 */
++	uint8_t do_split;		   /**< Enable split for the channel */
++	uint8_t complete_split;	   /**< Enable complete split */
++	uint8_t hub_addr;		   /**< Address of high speed hub */
++
++	uint8_t port_addr;		   /**< Port of the low/full speed device */
++	/** Split transaction position
++	 * One of the following values:
++	 *	  - DWC_HCSPLIT_XACTPOS_MID
++	 *	  - DWC_HCSPLIT_XACTPOS_BEGIN
++	 *	  - DWC_HCSPLIT_XACTPOS_END
++	 *	  - DWC_HCSPLIT_XACTPOS_ALL */
++	uint8_t xact_pos;
++
++	/** Set when the host channel does a short read. */
++	uint8_t short_read;
++
++	/**
++	 * Number of requests issued for this channel since it was assigned to
++	 * the current transfer (not counting PINGs).
++	 */
++	uint8_t requests;
++
++	/**
++	 * Queue Head for the transfer being processed by this channel.
++	 */
++	struct dwc_otg_qh *qh;
++
++	/** @} */
++
++	/** Entry in list of host channels. */
++	 DWC_CIRCLEQ_ENTRY(dwc_hc) hc_list_entry;
++
++	/** @name Descriptor DMA support */
++	/** @{ */
++
++	/** Number of Transfer Descriptors */
++	uint16_t ntd;
++
++	/** Descriptor List DMA address */
++	dwc_dma_t desc_list_addr;
++
++	/** Scheduling micro-frame bitmap. */
++	uint8_t schinfo;
++
++	/** @} */
++} dwc_hc_t;
++
++/**
++ * The following parameters may be specified when starting the module. These
++ * parameters define how the DWC_otg controller should be configured.
++ */
++typedef struct dwc_otg_core_params {
++	int32_t opt;
++
++	/**
++	 * Specifies the OTG capabilities. The driver will automatically
++	 * detect the value for this parameter if none is specified.
++	 * 0 - HNP and SRP capable (default)
++	 * 1 - SRP Only capable
++	 * 2 - No HNP/SRP capable
++	 */
++	int32_t otg_cap;
++
++	/**
++	 * Specifies whether to use slave or DMA mode for accessing the data
++	 * FIFOs. The driver will automatically detect the value for this
++	 * parameter if none is specified.
++	 * 0 - Slave
++	 * 1 - DMA (default, if available)
++	 */
++	int32_t dma_enable;
++
++	/**
++	 * When DMA mode is enabled specifies whether to use address DMA or DMA
++	 * Descriptor mode for accessing the data FIFOs in device mode. The driver
++	 * will automatically detect the value for this if none is specified.
++	 * 0 - address DMA
++	 * 1 - DMA Descriptor(default, if available)
++	 */
++	int32_t dma_desc_enable;
++	/** The DMA Burst size (applicable only for External DMA
++	 * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32)
++	 */
++	int32_t dma_burst_size;	/* Translate this to GAHBCFG values */
++
++	/**
++	 * Specifies the maximum speed of operation in host and device mode.
++	 * The actual speed depends on the speed of the attached device and
++	 * the value of phy_type. The actual speed depends on the speed of the
++	 * attached device.
++	 * 0 - High Speed (default)
++	 * 1 - Full Speed
++	 */
++	int32_t speed;
++	/** Specifies whether low power mode is supported when attached
++	 *	to a Full Speed or Low Speed device in host mode.
++	 * 0 - Don't support low power mode (default)
++	 * 1 - Support low power mode
++	 */
++	int32_t host_support_fs_ls_low_power;
++
++	/** Specifies the PHY clock rate in low power mode when connected to a
++	 * Low Speed device in host mode. This parameter is applicable only if
++	 * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS
++	 * then defaults to 6 MHZ otherwise 48 MHZ.
++	 *
++	 * 0 - 48 MHz
++	 * 1 - 6 MHz
++	 */
++	int32_t host_ls_low_power_phy_clk;
++
++	/**
++	 * 0 - Use cC FIFO size parameters
++	 * 1 - Allow dynamic FIFO sizing (default)
++	 */
++	int32_t enable_dynamic_fifo;
++
++	/** Total number of 4-byte words in the data FIFO memory. This
++	 * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic
++	 * Tx FIFOs.
++	 * 32 to 32768 (default 8192)
++	 * Note: The total FIFO memory depth in the FPGA configuration is 8192.
++	 */
++	int32_t data_fifo_size;
++
++	/** Number of 4-byte words in the Rx FIFO in device mode when dynamic
++	 * FIFO sizing is enabled.
++	 * 16 to 32768 (default 1064)
++	 */
++	int32_t dev_rx_fifo_size;
++
++	/** Number of 4-byte words in the non-periodic Tx FIFO in device mode
++	 * when dynamic FIFO sizing is enabled.
++	 * 16 to 32768 (default 1024)
++	 */
++	int32_t dev_nperio_tx_fifo_size;
++
++	/** Number of 4-byte words in each of the periodic Tx FIFOs in device
++	 * mode when dynamic FIFO sizing is enabled.
++	 * 4 to 768 (default 256)
++	 */
++	uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS];
++
++	/** Number of 4-byte words in the Rx FIFO in host mode when dynamic
++	 * FIFO sizing is enabled.
++	 * 16 to 32768 (default 1024)
++	 */
++	int32_t host_rx_fifo_size;
++
++	/** Number of 4-byte words in the non-periodic Tx FIFO in host mode
++	 * when Dynamic FIFO sizing is enabled in the core.
++	 * 16 to 32768 (default 1024)
++	 */
++	int32_t host_nperio_tx_fifo_size;
++
++	/** Number of 4-byte words in the host periodic Tx FIFO when dynamic
++	 * FIFO sizing is enabled.
++	 * 16 to 32768 (default 1024)
++	 */
++	int32_t host_perio_tx_fifo_size;
++
++	/** The maximum transfer size supported in bytes.
++	 * 2047 to 65,535  (default 65,535)
++	 */
++	int32_t max_transfer_size;
++
++	/** The maximum number of packets in a transfer.
++	 * 15 to 511  (default 511)
++	 */
++	int32_t max_packet_count;
++
++	/** The number of host channel registers to use.
++	 * 1 to 16 (default 12)
++	 * Note: The FPGA configuration supports a maximum of 12 host channels.
++	 */
++	int32_t host_channels;
++
++	/** The number of endpoints in addition to EP0 available for device
++	 * mode operations.
++	 * 1 to 15 (default 6 IN and OUT)
++	 * Note: The FPGA configuration supports a maximum of 6 IN and OUT
++	 * endpoints in addition to EP0.
++	 */
++	int32_t dev_endpoints;
++
++		/**
++		 * Specifies the type of PHY interface to use. By default, the driver
++		 * will automatically detect the phy_type.
++		 *
++		 * 0 - Full Speed PHY
++		 * 1 - UTMI+ (default)
++		 * 2 - ULPI
++		 */
++	int32_t phy_type;
++
++	/**
++	 * Specifies the UTMI+ Data Width. This parameter is
++	 * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI
++	 * PHY_TYPE, this parameter indicates the data width between
++	 * the MAC and the ULPI Wrapper.) Also, this parameter is
++	 * applicable only if the OTG_HSPHY_WIDTH cC parameter was set
++	 * to "8 and 16 bits", meaning that the core has been
++	 * configured to work at either data path width.
++	 *
++	 * 8 or 16 bits (default 16)
++	 */
++	int32_t phy_utmi_width;
++
++	/**
++	 * Specifies whether the ULPI operates at double or single
++	 * data rate. This parameter is only applicable if PHY_TYPE is
++	 * ULPI.
++	 *
++	 * 0 - single data rate ULPI interface with 8 bit wide data
++	 * bus (default)
++	 * 1 - double data rate ULPI interface with 4 bit wide data
++	 * bus
++	 */
++	int32_t phy_ulpi_ddr;
++
++	/**
++	 * Specifies whether to use the internal or external supply to
++	 * drive the vbus with a ULPI phy.
++	 */
++	int32_t phy_ulpi_ext_vbus;
++
++	/**
++	 * Specifies whether to use the I2Cinterface for full speed PHY. This
++	 * parameter is only applicable if PHY_TYPE is FS.
++	 * 0 - No (default)
++	 * 1 - Yes
++	 */
++	int32_t i2c_enable;
++
++	int32_t ulpi_fs_ls;
++
++	int32_t ts_dline;
++
++	/**
++	 * Specifies whether dedicated transmit FIFOs are
++	 * enabled for non periodic IN endpoints in device mode
++	 * 0 - No
++	 * 1 - Yes
++	 */
++	int32_t en_multiple_tx_fifo;
++
++	/** Number of 4-byte words in each of the Tx FIFOs in device
++	 * mode when dynamic FIFO sizing is enabled.
++	 * 4 to 768 (default 256)
++	 */
++	uint32_t dev_tx_fifo_size[MAX_TX_FIFOS];
++
++	/** Thresholding enable flag-
++	 * bit 0 - enable non-ISO Tx thresholding
++	 * bit 1 - enable ISO Tx thresholding
++	 * bit 2 - enable Rx thresholding
++	 */
++	uint32_t thr_ctl;
++
++	/** Thresholding length for Tx
++	 *	FIFOs in 32 bit DWORDs
++	 */
++	uint32_t tx_thr_length;
++
++	/** Thresholding length for Rx
++	 *	FIFOs in 32 bit DWORDs
++	 */
++	uint32_t rx_thr_length;
++
++	/**
++	 * Specifies whether LPM (Link Power Management) support is enabled
++	 */
++	int32_t lpm_enable;
++
++	/** Per Transfer Interrupt
++	 *	mode enable flag
++	 * 1 - Enabled
++	 * 0 - Disabled
++	 */
++	int32_t pti_enable;
++
++	/** Multi Processor Interrupt
++	 *	mode enable flag
++	 * 1 - Enabled
++	 * 0 - Disabled
++	 */
++	int32_t mpi_enable;
++
++	/** IS_USB Capability
++	 * 1 - Enabled
++	 * 0 - Disabled
++	 */
++	int32_t ic_usb_cap;
++
++	/** AHB Threshold Ratio
++	 * 2'b00 AHB Threshold = 	MAC Threshold
++	 * 2'b01 AHB Threshold = 1/2 	MAC Threshold
++	 * 2'b10 AHB Threshold = 1/4	MAC Threshold
++	 * 2'b11 AHB Threshold = 1/8	MAC Threshold
++	 */
++	int32_t ahb_thr_ratio;
++
++	/** ADP Support
++	 * 1 - Enabled
++	 * 0 - Disabled
++	 */
++	int32_t adp_supp_enable;
++
++	/** HFIR Reload Control
++	 * 0 - The HFIR cannot be reloaded dynamically.
++	 * 1 - Allow dynamic reloading of the HFIR register during runtime.
++	 */
++	int32_t reload_ctl;
++
++	/** DCFG: Enable device Out NAK
++	 * 0 - The core does not set NAK after Bulk Out transfer complete.
++	 * 1 - The core sets NAK after Bulk OUT transfer complete.
++	 */
++	int32_t dev_out_nak;
++
++	/** DCFG: Enable Continue on BNA
++	 * After receiving BNA interrupt the core disables the endpoint,when the
++	 * endpoint is re-enabled by the application the core starts processing
++	 * 0 - from the DOEPDMA descriptor
++	 * 1 - from the descriptor which received the BNA.
++	 */
++	int32_t cont_on_bna;
++
++	/** GAHBCFG: AHB Single Support
++	 * This bit when programmed supports SINGLE transfers for remainder
++	 * data in a transfer for DMA mode of operation.
++	 * 0 - in this case the remainder data will be sent using INCR burst size.
++	 * 1 - in this case the remainder data will be sent using SINGLE burst size.
++	 */
++	int32_t ahb_single;
++
++	/** Core Power down mode
++	 * 0 - No Power Down is enabled
++	 * 1 - Reserved
++	 * 2 - Complete Power Down (Hibernation)
++	 */
++	int32_t power_down;
++
++	/** OTG revision supported
++	 * 0 - OTG 1.3 revision
++	 * 1 - OTG 2.0 revision
++	 */
++	int32_t otg_ver;
++
++} dwc_otg_core_params_t;
++
++#ifdef DEBUG
++struct dwc_otg_core_if;
++typedef struct hc_xfer_info {
++	struct dwc_otg_core_if *core_if;
++	dwc_hc_t *hc;
++} hc_xfer_info_t;
++#endif
++
++typedef struct ep_xfer_info {
++	struct dwc_otg_core_if *core_if;
++	dwc_ep_t *ep;
++	uint8_t state;
++} ep_xfer_info_t;
++/*
++ * Device States
++ */
++typedef enum dwc_otg_lx_state {
++	/** On state */
++	DWC_OTG_L0,
++	/** LPM sleep state*/
++	DWC_OTG_L1,
++	/** USB suspend state*/
++	DWC_OTG_L2,
++	/** Off state*/
++	DWC_OTG_L3
++} dwc_otg_lx_state_e;
++
++struct dwc_otg_global_regs_backup {
++	uint32_t gotgctl_local;
++	uint32_t gintmsk_local;
++	uint32_t gahbcfg_local;
++	uint32_t gusbcfg_local;
++	uint32_t grxfsiz_local;
++	uint32_t gnptxfsiz_local;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	uint32_t glpmcfg_local;
++#endif
++	uint32_t gi2cctl_local;
++	uint32_t hptxfsiz_local;
++	uint32_t pcgcctl_local;
++	uint32_t gdfifocfg_local;
++	uint32_t dtxfsiz_local[MAX_EPS_CHANNELS];
++	uint32_t gpwrdn_local;
++	uint32_t xhib_pcgcctl;
++	uint32_t xhib_gpwrdn;
++};
++
++struct dwc_otg_host_regs_backup {
++	uint32_t hcfg_local;
++	uint32_t haintmsk_local;
++	uint32_t hcintmsk_local[MAX_EPS_CHANNELS];
++	uint32_t hprt0_local;
++	uint32_t hfir_local;
++};
++
++struct dwc_otg_dev_regs_backup {
++	uint32_t dcfg;
++	uint32_t dctl;
++	uint32_t daintmsk;
++	uint32_t diepmsk;
++	uint32_t doepmsk;
++	uint32_t diepctl[MAX_EPS_CHANNELS];
++	uint32_t dieptsiz[MAX_EPS_CHANNELS];
++	uint32_t diepdma[MAX_EPS_CHANNELS];
++};
++/**
++ * The <code>dwc_otg_core_if</code> structure contains information needed to manage
++ * the DWC_otg controller acting in either host or device mode. It
++ * represents the programming view of the controller as a whole.
++ */
++struct dwc_otg_core_if {
++	/** Parameters that define how the core should be configured.*/
++	dwc_otg_core_params_t *core_params;
++
++	/** Core Global registers starting at offset 000h. */
++	dwc_otg_core_global_regs_t *core_global_regs;
++
++	/** Device-specific information */
++	dwc_otg_dev_if_t *dev_if;
++	/** Host-specific information */
++	dwc_otg_host_if_t *host_if;
++
++	/** Value from SNPSID register */
++	uint32_t snpsid;
++
++	/*
++	 * Set to 1 if the core PHY interface bits in USBCFG have been
++	 * initialized.
++	 */
++	uint8_t phy_init_done;
++
++	/*
++	 * SRP Success flag, set by srp success interrupt in FS I2C mode
++	 */
++	uint8_t srp_success;
++	uint8_t srp_timer_started;
++	/** Timer for SRP. If it expires before SRP is successful
++	 * clear the SRP. */
++	dwc_timer_t *srp_timer;
++
++#ifdef DWC_DEV_SRPCAP
++	/* This timer is needed to power on the hibernated host core if SRP is not
++	 * initiated on connected SRP capable device for limited period of time
++	 */
++	uint8_t pwron_timer_started;
++	dwc_timer_t *pwron_timer;
++#endif
++	/* Common configuration information */
++	/** Power and Clock Gating Control Register */
++	volatile uint32_t *pcgcctl;
++#define DWC_OTG_PCGCCTL_OFFSET 0xE00
++
++	/** Push/pop addresses for endpoints or host channels.*/
++	uint32_t *data_fifo[MAX_EPS_CHANNELS];
++#define DWC_OTG_DATA_FIFO_OFFSET 0x1000
++#define DWC_OTG_DATA_FIFO_SIZE 0x1000
++
++	/** Total RAM for FIFOs (Bytes) */
++	uint16_t total_fifo_size;
++	/** Size of Rx FIFO (Bytes) */
++	uint16_t rx_fifo_size;
++	/** Size of Non-periodic Tx FIFO (Bytes) */
++	uint16_t nperio_tx_fifo_size;
++
++	/** 1 if DMA is enabled, 0 otherwise. */
++	uint8_t dma_enable;
++
++	/** 1 if DMA descriptor is enabled, 0 otherwise. */
++	uint8_t dma_desc_enable;
++
++	/** 1 if PTI Enhancement mode is enabled, 0 otherwise. */
++	uint8_t pti_enh_enable;
++
++	/** 1 if MPI Enhancement mode is enabled, 0 otherwise. */
++	uint8_t multiproc_int_enable;
++
++	/** 1 if dedicated Tx FIFOs are enabled, 0 otherwise. */
++	uint8_t en_multiple_tx_fifo;
++
++	/** Set to 1 if multiple packets of a high-bandwidth transfer is in
++	 * process of being queued */
++	uint8_t queuing_high_bandwidth;
++
++	/** Hardware Configuration -- stored here for convenience.*/
++	hwcfg1_data_t hwcfg1;
++	hwcfg2_data_t hwcfg2;
++	hwcfg3_data_t hwcfg3;
++	hwcfg4_data_t hwcfg4;
++	fifosize_data_t hptxfsiz;
++
++	/** Host and Device Configuration -- stored here for convenience.*/
++	hcfg_data_t hcfg;
++	dcfg_data_t dcfg;
++
++	/** The operational State, during transations
++	 * (a_host>>a_peripherial and b_device=>b_host) this may not
++	 * match the core but allows the software to determine
++	 * transitions.
++	 */
++	uint8_t op_state;
++
++	/**
++	 * Set to 1 if the HCD needs to be restarted on a session request
++	 * interrupt. This is required if no connector ID status change has
++	 * occurred since the HCD was last disconnected.
++	 */
++	uint8_t restart_hcd_on_session_req;
++
++	/** HCD callbacks */
++	/** A-Device is a_host */
++#define A_HOST		(1)
++	/** A-Device is a_suspend */
++#define A_SUSPEND	(2)
++	/** A-Device is a_peripherial */
++#define A_PERIPHERAL	(3)
++	/** B-Device is operating as a Peripheral. */
++#define B_PERIPHERAL	(4)
++	/** B-Device is operating as a Host. */
++#define B_HOST		(5)
++
++	/** HCD callbacks */
++	struct dwc_otg_cil_callbacks *hcd_cb;
++	/** PCD callbacks */
++	struct dwc_otg_cil_callbacks *pcd_cb;
++
++	/** Device mode Periodic Tx FIFO Mask */
++	uint32_t p_tx_msk;
++	/** Device mode Periodic Tx FIFO Mask */
++	uint32_t tx_msk;
++
++	/** Workqueue object used for handling several interrupts */
++	dwc_workq_t *wq_otg;
++
++	/** Timer object used for handling "Wakeup Detected" Interrupt */
++	dwc_timer_t *wkp_timer;
++	/** This arrays used for debug purposes for DEV OUT NAK enhancement */
++	uint32_t start_doeptsiz_val[MAX_EPS_CHANNELS];
++	ep_xfer_info_t ep_xfer_info[MAX_EPS_CHANNELS];
++	dwc_timer_t *ep_xfer_timer[MAX_EPS_CHANNELS];
++#ifdef DEBUG
++	uint32_t start_hcchar_val[MAX_EPS_CHANNELS];
++
++	hc_xfer_info_t hc_xfer_info[MAX_EPS_CHANNELS];
++	dwc_timer_t *hc_xfer_timer[MAX_EPS_CHANNELS];
++
++	uint32_t hfnum_7_samples;
++	uint64_t hfnum_7_frrem_accum;
++	uint32_t hfnum_0_samples;
++	uint64_t hfnum_0_frrem_accum;
++	uint32_t hfnum_other_samples;
++	uint64_t hfnum_other_frrem_accum;
++#endif
++
++#ifdef DWC_UTE_CFI
++	uint16_t pwron_rxfsiz;
++	uint16_t pwron_gnptxfsiz;
++	uint16_t pwron_txfsiz[15];
++
++	uint16_t init_rxfsiz;
++	uint16_t init_gnptxfsiz;
++	uint16_t init_txfsiz[15];
++#endif
++
++	/** Lx state of device */
++	dwc_otg_lx_state_e lx_state;
++
++	/** Saved Core Global registers */
++	struct dwc_otg_global_regs_backup *gr_backup;
++	/** Saved Host registers */
++	struct dwc_otg_host_regs_backup *hr_backup;
++	/** Saved Device registers */
++	struct dwc_otg_dev_regs_backup *dr_backup;
++
++	/** Power Down Enable */
++	uint32_t power_down;
++
++	/** ADP support Enable */
++	uint32_t adp_enable;
++
++	/** ADP structure object */
++	dwc_otg_adp_t adp;
++
++	/** hibernation/suspend flag */
++	int hibernation_suspend;
++
++	/** Device mode extended hibernation flag */
++	int xhib;
++
++	/** OTG revision supported */
++	uint32_t otg_ver;
++
++	/** OTG status flag used for HNP polling */
++	uint8_t otg_sts;
++
++	/** Pointer to either hcd->lock or pcd->lock */
++	dwc_spinlock_t *lock;
++
++	/** Start predict NextEP based on Learning Queue if equal 1,
++	 * also used as counter of disabled NP IN EP's */
++	uint8_t start_predict;
++
++	/** NextEp sequence, including EP0: nextep_seq[] = EP if non-periodic and
++	 * active, 0xff otherwise */
++	uint8_t nextep_seq[MAX_EPS_CHANNELS];
++
++	/** Index of fisrt EP in nextep_seq array which should be re-enabled **/
++	uint8_t first_in_nextep_seq;
++
++	/** Frame number while entering to ISR - needed for ISOCs **/
++	uint32_t frame_num;
++
++};
++
++#ifdef DEBUG
++/*
++ * This function is called when transfer is timed out.
++ */
++extern void hc_xfer_timeout(void *ptr);
++#endif
++
++/*
++ * This function is called when transfer is timed out on endpoint.
++ */
++extern void ep_xfer_timeout(void *ptr);
++
++/*
++ * The following functions are functions for works
++ * using during handling some interrupts
++ */
++extern void w_conn_id_status_change(void *p);
++
++extern void w_wakeup_detected(void *p);
++
++/** Saves global register values into system memory. */
++extern int dwc_otg_save_global_regs(dwc_otg_core_if_t * core_if);
++/** Saves device register values into system memory. */
++extern int dwc_otg_save_dev_regs(dwc_otg_core_if_t * core_if);
++/** Saves host register values into system memory. */
++extern int dwc_otg_save_host_regs(dwc_otg_core_if_t * core_if);
++/** Restore global register values. */
++extern int dwc_otg_restore_global_regs(dwc_otg_core_if_t * core_if);
++/** Restore host register values. */
++extern int dwc_otg_restore_host_regs(dwc_otg_core_if_t * core_if, int reset);
++/** Restore device register values. */
++extern int dwc_otg_restore_dev_regs(dwc_otg_core_if_t * core_if,
++				    int rem_wakeup);
++extern int restore_lpm_i2c_regs(dwc_otg_core_if_t * core_if);
++extern int restore_essential_regs(dwc_otg_core_if_t * core_if, int rmode,
++				  int is_host);
++
++extern int dwc_otg_host_hibernation_restore(dwc_otg_core_if_t * core_if,
++					    int restore_mode, int reset);
++extern int dwc_otg_device_hibernation_restore(dwc_otg_core_if_t * core_if,
++					      int rem_wakeup, int reset);
++
++/*
++ * The following functions support initialization of the CIL driver component
++ * and the DWC_otg controller.
++ */
++extern void dwc_otg_core_host_init(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_core_dev_init(dwc_otg_core_if_t * _core_if);
++
++/** @name Device CIL Functions
++ * The following functions support managing the DWC_otg controller in device
++ * mode.
++ */
++/**@{*/
++extern void dwc_otg_wakeup(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_read_setup_packet(dwc_otg_core_if_t * _core_if,
++				      uint32_t * _dest);
++extern uint32_t dwc_otg_get_frame_number(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_ep0_activate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep);
++extern void dwc_otg_ep_activate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep);
++extern void dwc_otg_ep_deactivate(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep);
++extern void dwc_otg_ep_start_transfer(dwc_otg_core_if_t * _core_if,
++				      dwc_ep_t * _ep);
++extern void dwc_otg_ep_start_zl_transfer(dwc_otg_core_if_t * _core_if,
++					 dwc_ep_t * _ep);
++extern void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t * _core_if,
++				       dwc_ep_t * _ep);
++extern void dwc_otg_ep0_continue_transfer(dwc_otg_core_if_t * _core_if,
++					  dwc_ep_t * _ep);
++extern void dwc_otg_ep_write_packet(dwc_otg_core_if_t * _core_if,
++				    dwc_ep_t * _ep, int _dma);
++extern void dwc_otg_ep_set_stall(dwc_otg_core_if_t * _core_if, dwc_ep_t * _ep);
++extern void dwc_otg_ep_clear_stall(dwc_otg_core_if_t * _core_if,
++				   dwc_ep_t * _ep);
++extern void dwc_otg_enable_device_interrupts(dwc_otg_core_if_t * _core_if);
++
++#ifdef DWC_EN_ISOC
++extern void dwc_otg_iso_ep_start_frm_transfer(dwc_otg_core_if_t * core_if,
++					      dwc_ep_t * ep);
++extern void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t * core_if,
++					      dwc_ep_t * ep);
++#endif /* DWC_EN_ISOC */
++/**@}*/
++
++/** @name Host CIL Functions
++ * The following functions support managing the DWC_otg controller in host
++ * mode.
++ */
++/**@{*/
++extern void dwc_otg_hc_init(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc);
++extern void dwc_otg_hc_halt(dwc_otg_core_if_t * _core_if,
++			    dwc_hc_t * _hc, dwc_otg_halt_status_e _halt_status);
++extern void dwc_otg_hc_cleanup(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc);
++extern void dwc_otg_hc_start_transfer(dwc_otg_core_if_t * _core_if,
++				      dwc_hc_t * _hc);
++extern int dwc_otg_hc_continue_transfer(dwc_otg_core_if_t * _core_if,
++					dwc_hc_t * _hc);
++extern void dwc_otg_hc_do_ping(dwc_otg_core_if_t * _core_if, dwc_hc_t * _hc);
++extern void dwc_otg_hc_write_packet(dwc_otg_core_if_t * _core_if,
++				    dwc_hc_t * _hc);
++extern void dwc_otg_enable_host_interrupts(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_disable_host_interrupts(dwc_otg_core_if_t * _core_if);
++
++extern void dwc_otg_hc_start_transfer_ddma(dwc_otg_core_if_t * core_if,
++					   dwc_hc_t * hc);
++
++extern uint32_t calc_frame_interval(dwc_otg_core_if_t * core_if);
++
++/* Macro used to clear one channel interrupt */
++#define clear_hc_int(_hc_regs_, _intr_) \
++do { \
++	hcint_data_t hcint_clear = {.d32 = 0}; \
++	hcint_clear.b._intr_ = 1; \
++	DWC_WRITE_REG32(&(_hc_regs_)->hcint, hcint_clear.d32); \
++} while (0)
++
++/*
++ * Macro used to disable one channel interrupt. Channel interrupts are
++ * disabled when the channel is halted or released by the interrupt handler.
++ * There is no need to handle further interrupts of that type until the
++ * channel is re-assigned. In fact, subsequent handling may cause crashes
++ * because the channel structures are cleaned up when the channel is released.
++ */
++#define disable_hc_int(_hc_regs_, _intr_) \
++do { \
++	hcintmsk_data_t hcintmsk = {.d32 = 0}; \
++	hcintmsk.b._intr_ = 1; \
++	DWC_MODIFY_REG32(&(_hc_regs_)->hcintmsk, hcintmsk.d32, 0); \
++} while (0)
++
++/**
++ * This function Reads HPRT0 in preparation to modify. It keeps the
++ * WC bits 0 so that if they are read as 1, they won't clear when you
++ * write it back
++ */
++static inline uint32_t dwc_otg_read_hprt0(dwc_otg_core_if_t * _core_if)
++{
++	hprt0_data_t hprt0;
++	hprt0.d32 = DWC_READ_REG32(_core_if->host_if->hprt0);
++	hprt0.b.prtena = 0;
++	hprt0.b.prtconndet = 0;
++	hprt0.b.prtenchng = 0;
++	hprt0.b.prtovrcurrchng = 0;
++	return hprt0.d32;
++}
++
++/**@}*/
++
++/** @name Common CIL Functions
++ * The following functions support managing the DWC_otg controller in either
++ * device or host mode.
++ */
++/**@{*/
++
++extern void dwc_otg_read_packet(dwc_otg_core_if_t * core_if,
++				uint8_t * dest, uint16_t bytes);
++
++extern void dwc_otg_flush_tx_fifo(dwc_otg_core_if_t * _core_if, const int _num);
++extern void dwc_otg_flush_rx_fifo(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_core_reset(dwc_otg_core_if_t * _core_if);
++
++/**
++ * This function returns the Core Interrupt register.
++ */
++static inline uint32_t dwc_otg_read_core_intr(dwc_otg_core_if_t * core_if)
++{
++	return (DWC_READ_REG32(&core_if->core_global_regs->gintsts) &
++		DWC_READ_REG32(&core_if->core_global_regs->gintmsk));
++}
++
++/**
++ * This function returns the OTG Interrupt register.
++ */
++static inline uint32_t dwc_otg_read_otg_intr(dwc_otg_core_if_t * core_if)
++{
++	return (DWC_READ_REG32(&core_if->core_global_regs->gotgint));
++}
++
++/**
++ * This function reads the Device All Endpoints Interrupt register and
++ * returns the IN endpoint interrupt bits.
++ */
++static inline uint32_t dwc_otg_read_dev_all_in_ep_intr(dwc_otg_core_if_t *
++						       core_if)
++{
++
++	uint32_t v;
++
++	if (core_if->multiproc_int_enable) {
++		v = DWC_READ_REG32(&core_if->dev_if->
++				   dev_global_regs->deachint) &
++		    DWC_READ_REG32(&core_if->
++				   dev_if->dev_global_regs->deachintmsk);
++	} else {
++		v = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daint) &
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk);
++	}
++	return (v & 0xffff);
++}
++
++/**
++ * This function reads the Device All Endpoints Interrupt register and
++ * returns the OUT endpoint interrupt bits.
++ */
++static inline uint32_t dwc_otg_read_dev_all_out_ep_intr(dwc_otg_core_if_t *
++							core_if)
++{
++	uint32_t v;
++
++	if (core_if->multiproc_int_enable) {
++		v = DWC_READ_REG32(&core_if->dev_if->
++				   dev_global_regs->deachint) &
++		    DWC_READ_REG32(&core_if->
++				   dev_if->dev_global_regs->deachintmsk);
++	} else {
++		v = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daint) &
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->daintmsk);
++	}
++
++	return ((v & 0xffff0000) >> 16);
++}
++
++/**
++ * This function returns the Device IN EP Interrupt register
++ */
++static inline uint32_t dwc_otg_read_dev_in_ep_intr(dwc_otg_core_if_t * core_if,
++						   dwc_ep_t * ep)
++{
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	uint32_t v, msk, emp;
++
++	if (core_if->multiproc_int_enable) {
++		msk =
++		    DWC_READ_REG32(&dev_if->
++				   dev_global_regs->diepeachintmsk[ep->num]);
++		emp =
++		    DWC_READ_REG32(&dev_if->
++				   dev_global_regs->dtknqr4_fifoemptymsk);
++		msk |= ((emp >> ep->num) & 0x1) << 7;
++		v = DWC_READ_REG32(&dev_if->in_ep_regs[ep->num]->diepint) & msk;
++	} else {
++		msk = DWC_READ_REG32(&dev_if->dev_global_regs->diepmsk);
++		emp =
++		    DWC_READ_REG32(&dev_if->
++				   dev_global_regs->dtknqr4_fifoemptymsk);
++		msk |= ((emp >> ep->num) & 0x1) << 7;
++		v = DWC_READ_REG32(&dev_if->in_ep_regs[ep->num]->diepint) & msk;
++	}
++
++	return v;
++}
++
++/**
++ * This function returns the Device OUT EP Interrupt register
++ */
++static inline uint32_t dwc_otg_read_dev_out_ep_intr(dwc_otg_core_if_t *
++						    _core_if, dwc_ep_t * _ep)
++{
++	dwc_otg_dev_if_t *dev_if = _core_if->dev_if;
++	uint32_t v;
++	doepmsk_data_t msk = {.d32 = 0 };
++
++	if (_core_if->multiproc_int_enable) {
++		msk.d32 =
++		    DWC_READ_REG32(&dev_if->
++				   dev_global_regs->doepeachintmsk[_ep->num]);
++		if (_core_if->pti_enh_enable) {
++			msk.b.pktdrpsts = 1;
++		}
++		v = DWC_READ_REG32(&dev_if->
++				   out_ep_regs[_ep->num]->doepint) & msk.d32;
++	} else {
++		msk.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->doepmsk);
++		if (_core_if->pti_enh_enable) {
++			msk.b.pktdrpsts = 1;
++		}
++		v = DWC_READ_REG32(&dev_if->
++				   out_ep_regs[_ep->num]->doepint) & msk.d32;
++	}
++	return v;
++}
++
++/**
++ * This function returns the Host All Channel Interrupt register
++ */
++static inline uint32_t dwc_otg_read_host_all_channels_intr(dwc_otg_core_if_t *
++							   _core_if)
++{
++	return (DWC_READ_REG32(&_core_if->host_if->host_global_regs->haint));
++}
++
++static inline uint32_t dwc_otg_read_host_channel_intr(dwc_otg_core_if_t *
++						      _core_if, dwc_hc_t * _hc)
++{
++	return (DWC_READ_REG32
++		(&_core_if->host_if->hc_regs[_hc->hc_num]->hcint));
++}
++
++/**
++ * This function returns the mode of the operation, host or device.
++ *
++ * @return 0 - Device Mode, 1 - Host Mode
++ */
++static inline uint32_t dwc_otg_mode(dwc_otg_core_if_t * _core_if)
++{
++	return (DWC_READ_REG32(&_core_if->core_global_regs->gintsts) & 0x1);
++}
++
++/**@}*/
++
++/**
++ * DWC_otg CIL callback structure. This structure allows the HCD and
++ * PCD to register functions used for starting and stopping the PCD
++ * and HCD for role change on for a DRD.
++ */
++typedef struct dwc_otg_cil_callbacks {
++	/** Start function for role change */
++	int (*start) (void *_p);
++	/** Stop Function for role change */
++	int (*stop) (void *_p);
++	/** Disconnect Function for role change */
++	int (*disconnect) (void *_p);
++	/** Resume/Remote wakeup Function */
++	int (*resume_wakeup) (void *_p);
++	/** Suspend function */
++	int (*suspend) (void *_p);
++	/** Session Start (SRP) */
++	int (*session_start) (void *_p);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	/** Sleep (switch to L0 state) */
++	int (*sleep) (void *_p);
++#endif
++	/** Pointer passed to start() and stop() */
++	void *p;
++} dwc_otg_cil_callbacks_t;
++
++extern void dwc_otg_cil_register_pcd_callbacks(dwc_otg_core_if_t * _core_if,
++					       dwc_otg_cil_callbacks_t * _cb,
++					       void *_p);
++extern void dwc_otg_cil_register_hcd_callbacks(dwc_otg_core_if_t * _core_if,
++					       dwc_otg_cil_callbacks_t * _cb,
++					       void *_p);
++
++void dwc_otg_initiate_srp(dwc_otg_core_if_t * core_if);
++
++//////////////////////////////////////////////////////////////////////
++/** Start the HCD.  Helper function for using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_start(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->start) {
++		core_if->hcd_cb->start(core_if->hcd_cb->p);
++	}
++}
++
++/** Stop the HCD.  Helper function for using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_stop(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->stop) {
++		core_if->hcd_cb->stop(core_if->hcd_cb->p);
++	}
++}
++
++/** Disconnect the HCD.  Helper function for using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_disconnect(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->disconnect) {
++		core_if->hcd_cb->disconnect(core_if->hcd_cb->p);
++	}
++}
++
++/** Inform the HCD the a New Session has begun.  Helper function for
++ * using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_session_start(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->session_start) {
++		core_if->hcd_cb->session_start(core_if->hcd_cb->p);
++	}
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++/**
++ * Inform the HCD about LPM sleep.
++ * Helper function for using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_sleep(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->sleep) {
++		core_if->hcd_cb->sleep(core_if->hcd_cb->p);
++	}
++}
++#endif
++
++/** Resume the HCD.  Helper function for using the HCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_hcd_resume(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->hcd_cb && core_if->hcd_cb->resume_wakeup) {
++		core_if->hcd_cb->resume_wakeup(core_if->hcd_cb->p);
++	}
++}
++
++/** Start the PCD.  Helper function for using the PCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_pcd_start(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->pcd_cb && core_if->pcd_cb->start) {
++		core_if->pcd_cb->start(core_if->pcd_cb->p);
++	}
++}
++
++/** Stop the PCD.  Helper function for using the PCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_pcd_stop(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->pcd_cb && core_if->pcd_cb->stop) {
++		core_if->pcd_cb->stop(core_if->pcd_cb->p);
++	}
++}
++
++/** Suspend the PCD.  Helper function for using the PCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_pcd_suspend(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->pcd_cb && core_if->pcd_cb->suspend) {
++		core_if->pcd_cb->suspend(core_if->pcd_cb->p);
++	}
++}
++
++/** Resume the PCD.  Helper function for using the PCD callbacks.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static inline void cil_pcd_resume(dwc_otg_core_if_t * core_if)
++{
++	if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) {
++		core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p);
++	}
++}
++
++//////////////////////////////////////////////////////////////////////
++
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
+@@ -0,0 +1,1601 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_cil_intr.c $
++ * $Revision: #32 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++/** @file
++ *
++ * The Core Interface Layer provides basic services for accessing and
++ * managing the DWC_otg hardware. These services are used by both the
++ * Host Controller Driver and the Peripheral Controller Driver.
++ *
++ * This file contains the Common Interrupt handlers.
++ */
++#include "dwc_os.h"
++#include "dwc_otg_regs.h"
++#include "dwc_otg_cil.h"
++#include "dwc_otg_driver.h"
++#include "dwc_otg_pcd.h"
++#include "dwc_otg_hcd.h"
++
++#ifdef DEBUG
++inline const char *op_state_str(dwc_otg_core_if_t * core_if)
++{
++	return (core_if->op_state == A_HOST ? "a_host" :
++		(core_if->op_state == A_SUSPEND ? "a_suspend" :
++		 (core_if->op_state == A_PERIPHERAL ? "a_peripheral" :
++		  (core_if->op_state == B_PERIPHERAL ? "b_peripheral" :
++		   (core_if->op_state == B_HOST ? "b_host" : "unknown")))));
++}
++#endif
++
++/** This function will log a debug message
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++int32_t dwc_otg_handle_mode_mismatch_intr(dwc_otg_core_if_t * core_if)
++{
++	gintsts_data_t gintsts;
++	DWC_WARN("Mode Mismatch Interrupt: currently in %s mode\n",
++		 dwc_otg_mode(core_if) ? "Host" : "Device");
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.modemismatch = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++	return 1;
++}
++
++/**
++ * This function handles the OTG Interrupts. It reads the OTG
++ * Interrupt Register (GOTGINT) to determine what interrupt has
++ * occurred.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++int32_t dwc_otg_handle_otg_intr(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	gotgint_data_t gotgint;
++	gotgctl_data_t gotgctl;
++	gintmsk_data_t gintmsk;
++	gpwrdn_data_t gpwrdn;
++
++	gotgint.d32 = DWC_READ_REG32(&global_regs->gotgint);
++	gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl);
++	DWC_DEBUGPL(DBG_CIL, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint.d32,
++		    op_state_str(core_if));
++
++	if (gotgint.b.sesenddet) {
++		DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
++			    "Session End Detected++ (%s)\n",
++			    op_state_str(core_if));
++		gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl);
++
++		if (core_if->op_state == B_HOST) {
++			cil_pcd_start(core_if);
++			core_if->op_state = B_PERIPHERAL;
++		} else {
++			/* If not B_HOST and Device HNP still set. HNP
++			 * Did not succeed!*/
++			if (gotgctl.b.devhnpen) {
++				DWC_DEBUGPL(DBG_ANY, "Session End Detected\n");
++				__DWC_ERROR("Device Not Connected/Responding!\n");
++			}
++
++			/* If Session End Detected the B-Cable has
++			 * been disconnected. */
++			/* Reset PCD and Gadget driver to a
++			 * clean state. */
++			core_if->lx_state = DWC_OTG_L0;
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_pcd_stop(core_if);
++			DWC_SPINLOCK(core_if->lock);
++
++			if (core_if->adp_enable) {
++				if (core_if->power_down == 2) {
++					gpwrdn.d32 = 0;
++					gpwrdn.b.pwrdnswtch = 1;
++					DWC_MODIFY_REG32(&core_if->
++							 core_global_regs->
++							 gpwrdn, gpwrdn.d32, 0);
++				}
++
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuintsel = 1;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++
++				dwc_otg_adp_sense_start(core_if);
++			}
++		}
++
++		gotgctl.d32 = 0;
++		gotgctl.b.devhnpen = 1;
++		DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0);
++	}
++	if (gotgint.b.sesreqsucstschng) {
++		DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
++			    "Session Reqeust Success Status Change++\n");
++		gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl);
++		if (gotgctl.b.sesreqscs) {
++
++			if ((core_if->core_params->phy_type ==
++			     DWC_PHY_TYPE_PARAM_FS) && (core_if->core_params->i2c_enable)) {
++				core_if->srp_success = 1;
++			} else {
++				DWC_SPINUNLOCK(core_if->lock);
++				cil_pcd_resume(core_if);
++				DWC_SPINLOCK(core_if->lock);
++				/* Clear Session Request */
++				gotgctl.d32 = 0;
++				gotgctl.b.sesreq = 1;
++				DWC_MODIFY_REG32(&global_regs->gotgctl,
++						 gotgctl.d32, 0);
++			}
++		}
++	}
++	if (gotgint.b.hstnegsucstschng) {
++		/* Print statements during the HNP interrupt handling
++		 * can cause it to fail.*/
++		gotgctl.d32 = DWC_READ_REG32(&global_regs->gotgctl);
++		/* WA for 3.00a- HW is not setting cur_mode, even sometimes
++		 * this does not help*/
++		if (core_if->snpsid >= OTG_CORE_REV_3_00a)
++			dwc_udelay(100);
++		if (gotgctl.b.hstnegscs) {
++			if (dwc_otg_is_host_mode(core_if)) {
++				core_if->op_state = B_HOST;
++				/*
++				 * Need to disable SOF interrupt immediately.
++				 * When switching from device to host, the PCD
++				 * interrupt handler won't handle the
++				 * interrupt if host mode is already set. The
++				 * HCD interrupt handler won't get called if
++				 * the HCD state is HALT. This means that the
++				 * interrupt does not get handled and Linux
++				 * complains loudly.
++				 */
++				gintmsk.d32 = 0;
++				gintmsk.b.sofintr = 1;
++				DWC_MODIFY_REG32(&global_regs->gintmsk,
++						 gintmsk.d32, 0);
++				/* Call callback function with spin lock released */
++				DWC_SPINUNLOCK(core_if->lock);
++				cil_pcd_stop(core_if);
++				/*
++				 * Initialize the Core for Host mode.
++				 */
++				cil_hcd_start(core_if);
++				DWC_SPINLOCK(core_if->lock);
++				core_if->op_state = B_HOST;
++			}
++		} else {
++			gotgctl.d32 = 0;
++			gotgctl.b.hnpreq = 1;
++			gotgctl.b.devhnpen = 1;
++			DWC_MODIFY_REG32(&global_regs->gotgctl, gotgctl.d32, 0);
++			DWC_DEBUGPL(DBG_ANY, "HNP Failed\n");
++			__DWC_ERROR("Device Not Connected/Responding\n");
++		}
++	}
++	if (gotgint.b.hstnegdet) {
++		/* The disconnect interrupt is set at the same time as
++		 * Host Negotiation Detected.  During the mode
++		 * switch all interrupts are cleared so the disconnect
++		 * interrupt handler will not get executed.
++		 */
++		DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
++			    "Host Negotiation Detected++ (%s)\n",
++			    (dwc_otg_is_host_mode(core_if) ? "Host" :
++			     "Device"));
++		if (dwc_otg_is_device_mode(core_if)) {
++			DWC_DEBUGPL(DBG_ANY, "a_suspend->a_peripheral (%d)\n",
++				    core_if->op_state);
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_hcd_disconnect(core_if);
++			cil_pcd_start(core_if);
++			DWC_SPINLOCK(core_if->lock);
++			core_if->op_state = A_PERIPHERAL;
++		} else {
++			/*
++			 * Need to disable SOF interrupt immediately. When
++			 * switching from device to host, the PCD interrupt
++			 * handler won't handle the interrupt if host mode is
++			 * already set. The HCD interrupt handler won't get
++			 * called if the HCD state is HALT. This means that
++			 * the interrupt does not get handled and Linux
++			 * complains loudly.
++			 */
++			gintmsk.d32 = 0;
++			gintmsk.b.sofintr = 1;
++			DWC_MODIFY_REG32(&global_regs->gintmsk, gintmsk.d32, 0);
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_pcd_stop(core_if);
++			cil_hcd_start(core_if);
++			DWC_SPINLOCK(core_if->lock);
++			core_if->op_state = A_HOST;
++		}
++	}
++	if (gotgint.b.adevtoutchng) {
++		DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: "
++			    "A-Device Timeout Change++\n");
++	}
++	if (gotgint.b.debdone) {
++		DWC_DEBUGPL(DBG_ANY, " ++OTG Interrupt: " "Debounce Done++\n");
++	}
++
++	/* Clear GOTGINT */
++	DWC_WRITE_REG32(&core_if->core_global_regs->gotgint, gotgint.d32);
++
++	return 1;
++}
++
++void w_conn_id_status_change(void *p)
++{
++	dwc_otg_core_if_t *core_if = p;
++	uint32_t count = 0;
++	gotgctl_data_t gotgctl = {.d32 = 0 };
++
++	gotgctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++	DWC_DEBUGPL(DBG_CIL, "gotgctl=%0x\n", gotgctl.d32);
++	DWC_DEBUGPL(DBG_CIL, "gotgctl.b.conidsts=%d\n", gotgctl.b.conidsts);
++
++	/* B-Device connector (Device Mode) */
++	if (gotgctl.b.conidsts) {
++		/* Wait for switch to device mode. */
++		while (!dwc_otg_is_device_mode(core_if)) {
++			DWC_PRINTF("Waiting for Peripheral Mode, Mode=%s\n",
++				   (dwc_otg_is_host_mode(core_if) ? "Host" :
++				    "Peripheral"));
++			dwc_mdelay(100);
++			if (++count > 10000)
++				break;
++		}
++		DWC_ASSERT(++count < 10000,
++			   "Connection id status change timed out");
++		core_if->op_state = B_PERIPHERAL;
++		dwc_otg_core_init(core_if);
++		dwc_otg_enable_global_interrupts(core_if);
++		cil_pcd_start(core_if);
++	} else {
++		/* A-Device connector (Host Mode) */
++		while (!dwc_otg_is_host_mode(core_if)) {
++			DWC_PRINTF("Waiting for Host Mode, Mode=%s\n",
++				   (dwc_otg_is_host_mode(core_if) ? "Host" :
++				    "Peripheral"));
++			dwc_mdelay(100);
++			if (++count > 10000)
++				break;
++		}
++		DWC_ASSERT(++count < 10000,
++			   "Connection id status change timed out");
++		core_if->op_state = A_HOST;
++		/*
++		 * Initialize the Core for Host mode.
++		 */
++		dwc_otg_core_init(core_if);
++		dwc_otg_enable_global_interrupts(core_if);
++		cil_hcd_start(core_if);
++	}
++}
++
++/**
++ * This function handles the Connector ID Status Change Interrupt.  It
++ * reads the OTG Interrupt Register (GOTCTL) to determine whether this
++ * is a Device to Host Mode transition or a Host Mode to Device
++ * Transition.
++ *
++ * This only occurs when the cable is connected/removed from the PHY
++ * connector.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++int32_t dwc_otg_handle_conn_id_status_change_intr(dwc_otg_core_if_t * core_if)
++{
++
++	/*
++	 * Need to disable SOF interrupt immediately. If switching from device
++	 * to host, the PCD interrupt handler won't handle the interrupt if
++	 * host mode is already set. The HCD interrupt handler won't get
++	 * called if the HCD state is HALT. This means that the interrupt does
++	 * not get handled and Linux complains loudly.
++	 */
++	gintmsk_data_t gintmsk = {.d32 = 0 };
++	gintsts_data_t gintsts = {.d32 = 0 };
++
++	gintmsk.b.sofintr = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
++
++	DWC_DEBUGPL(DBG_CIL,
++		    " ++Connector ID Status Change Interrupt++  (%s)\n",
++		    (dwc_otg_is_host_mode(core_if) ? "Host" : "Device"));
++
++	DWC_SPINUNLOCK(core_if->lock);
++
++	/*
++	 * Need to schedule a work, as there are possible DELAY function calls
++	 * Release lock before scheduling workq as it holds spinlock during scheduling
++	 */
++
++	DWC_WORKQ_SCHEDULE(core_if->wq_otg, w_conn_id_status_change,
++			   core_if, "connection id status change");
++	DWC_SPINLOCK(core_if->lock);
++
++	/* Set flag and clear interrupt */
++	gintsts.b.conidstschng = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that a device is initiating the Session
++ * Request Protocol to request the host to turn on bus power so a new
++ * session can begin. The handler responds by turning on bus power. If
++ * the DWC_otg controller is in low power mode, the handler brings the
++ * controller out of low power mode before turning on bus power.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++int32_t dwc_otg_handle_session_req_intr(dwc_otg_core_if_t * core_if)
++{
++	gintsts_data_t gintsts;
++
++#ifndef DWC_HOST_ONLY
++	DWC_DEBUGPL(DBG_ANY, "++Session Request Interrupt++\n");
++
++	if (dwc_otg_is_device_mode(core_if)) {
++		DWC_PRINTF("SRP: Device mode\n");
++	} else {
++		hprt0_data_t hprt0;
++		DWC_PRINTF("SRP: Host mode\n");
++
++		/* Turn on the port power bit. */
++		hprt0.d32 = dwc_otg_read_hprt0(core_if);
++		hprt0.b.prtpwr = 1;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++		/* Start the Connection timer. So a message can be displayed
++		 * if connect does not occur within 10 seconds. */
++		cil_hcd_session_start(core_if);
++	}
++#endif
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.sessreqintr = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++void w_wakeup_detected(void *p)
++{
++	dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) p;
++	/*
++	 * Clear the Resume after 70ms. (Need 20 ms minimum. Use 70 ms
++	 * so that OPT tests pass with all PHYs).
++	 */
++	hprt0_data_t hprt0 = {.d32 = 0 };
++#if 0
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	/* Restart the Phy Clock */
++	pcgcctl.b.stoppclk = 1;
++	DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++	dwc_udelay(10);
++#endif //0
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	DWC_DEBUGPL(DBG_ANY, "Resume: HPRT0=%0x\n", hprt0.d32);
++//      dwc_mdelay(70);
++	hprt0.b.prtres = 0;	/* Resume */
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	DWC_DEBUGPL(DBG_ANY, "Clear Resume: HPRT0=%0x\n",
++		    DWC_READ_REG32(core_if->host_if->hprt0));
++
++	cil_hcd_resume(core_if);
++
++	/** Change to L0 state*/
++	core_if->lx_state = DWC_OTG_L0;
++}
++
++/**
++ * This interrupt indicates that the DWC_otg controller has detected a
++ * resume or remote wakeup sequence. If the DWC_otg controller is in
++ * low power mode, the handler must brings the controller out of low
++ * power mode. The controller automatically begins resume
++ * signaling. The handler schedules a time to stop resume signaling.
++ */
++int32_t dwc_otg_handle_wakeup_detected_intr(dwc_otg_core_if_t * core_if)
++{
++	gintsts_data_t gintsts;
++
++	DWC_DEBUGPL(DBG_ANY,
++		    "++Resume and Remote Wakeup Detected Interrupt++\n");
++
++	DWC_PRINTF("%s lxstate = %d\n", __func__, core_if->lx_state);
++
++	if (dwc_otg_is_device_mode(core_if)) {
++		dctl_data_t dctl = {.d32 = 0 };
++		DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n",
++			    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->
++					   dsts));
++		if (core_if->lx_state == DWC_OTG_L2) {
++#ifdef PARTIAL_POWER_DOWN
++			if (core_if->hwcfg4.b.power_optimiz) {
++				pcgcctl_data_t power = {.d32 = 0 };
++
++				power.d32 = DWC_READ_REG32(core_if->pcgcctl);
++				DWC_DEBUGPL(DBG_CIL, "PCGCCTL=%0x\n",
++					    power.d32);
++
++				power.b.stoppclk = 0;
++				DWC_WRITE_REG32(core_if->pcgcctl, power.d32);
++
++				power.b.pwrclmp = 0;
++				DWC_WRITE_REG32(core_if->pcgcctl, power.d32);
++
++				power.b.rstpdwnmodule = 0;
++				DWC_WRITE_REG32(core_if->pcgcctl, power.d32);
++			}
++#endif
++			/* Clear the Remote Wakeup Signaling */
++			dctl.b.rmtwkupsig = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++					 dctl, dctl.d32, 0);
++
++			DWC_SPINUNLOCK(core_if->lock);
++			if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) {
++				core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p);
++			}
++			DWC_SPINLOCK(core_if->lock);
++		} else {
++			glpmcfg_data_t lpmcfg;
++			lpmcfg.d32 =
++			    DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++			lpmcfg.b.hird_thres &= (~(1 << 4));
++			DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg,
++					lpmcfg.d32);
++		}
++		/** Change to L0 state*/
++		core_if->lx_state = DWC_OTG_L0;
++	} else {
++		if (core_if->lx_state != DWC_OTG_L1) {
++			pcgcctl_data_t pcgcctl = {.d32 = 0 };
++
++			/* Restart the Phy Clock */
++			pcgcctl.b.stoppclk = 1;
++			DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++			DWC_TIMER_SCHEDULE(core_if->wkp_timer, 71);
++		} else {
++			/** Change to L0 state*/
++			core_if->lx_state = DWC_OTG_L0;
++		}
++	}
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.wkupintr = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that the Wakeup Logic has detected a
++ * Device disconnect.
++ */
++static int32_t dwc_otg_handle_pwrdn_disconnect_intr(dwc_otg_core_if_t *core_if)
++{
++	gpwrdn_data_t gpwrdn = { .d32 = 0 };
++	gpwrdn_data_t gpwrdn_temp = { .d32 = 0 };
++	gpwrdn_temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++
++	DWC_PRINTF("%s called\n", __FUNCTION__);
++
++	if (!core_if->hibernation_suspend) {
++		DWC_PRINTF("Already exited from Hibernation\n");
++		return 1;
++	}
++
++	/* Switch on the voltage to the core */
++	gpwrdn.b.pwrdnswtch = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Reset the core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Disable power clamps*/
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnclmp = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Remove reset the core signal */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable PMU interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuintsel = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	core_if->hibernation_suspend = 0;
++
++	/* Disable PMU */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	if (gpwrdn_temp.b.idsts) {
++		core_if->op_state = B_PERIPHERAL;
++		dwc_otg_core_init(core_if);
++		dwc_otg_enable_global_interrupts(core_if);
++		cil_pcd_start(core_if);
++	} else {
++		core_if->op_state = A_HOST;
++		dwc_otg_core_init(core_if);
++		dwc_otg_enable_global_interrupts(core_if);
++		cil_hcd_start(core_if);
++	}
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that the Wakeup Logic has detected a
++ * remote wakeup sequence.
++ */
++static int32_t dwc_otg_handle_pwrdn_wakeup_detected_intr(dwc_otg_core_if_t * core_if)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	DWC_DEBUGPL(DBG_ANY,
++		    "++Powerdown Remote Wakeup Detected Interrupt++\n");
++
++	if (!core_if->hibernation_suspend) {
++		DWC_PRINTF("Already exited from Hibernation\n");
++		return 1;
++	}
++
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	if (gpwrdn.b.idsts) {	// Device Mode
++		if ((core_if->power_down == 2)
++		    && (core_if->hibernation_suspend == 1)) {
++			dwc_otg_device_hibernation_restore(core_if, 0, 0);
++		}
++	} else {
++		if ((core_if->power_down == 2)
++		    && (core_if->hibernation_suspend == 1)) {
++			dwc_otg_host_hibernation_restore(core_if, 1, 0);
++		}
++	}
++	return 1;
++}
++
++static int32_t dwc_otg_handle_pwrdn_idsts_change(dwc_otg_device_t *otg_dev)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	gpwrdn_data_t gpwrdn_temp = {.d32 = 0 };
++	dwc_otg_core_if_t *core_if = otg_dev->core_if;
++
++	DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__);
++	gpwrdn_temp.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	if (core_if->power_down == 2) {
++		if (!core_if->hibernation_suspend) {
++			DWC_PRINTF("Already exited from Hibernation\n");
++			return 1;
++		}
++		DWC_DEBUGPL(DBG_ANY, "Exit from hibernation on ID sts change\n");
++		/* Switch on the voltage to the core */
++		gpwrdn.b.pwrdnswtch = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		/* Reset the core */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnrstn = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		/* Disable power clamps */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnclmp = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++		/* Remove reset the core signal */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnrstn = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++		dwc_udelay(10);
++
++		/* Disable PMU interrupt */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuintsel = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++		/*Indicates that we are exiting from hibernation */
++		core_if->hibernation_suspend = 0;
++
++		/* Disable PMU */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuactv = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		gpwrdn.d32 = core_if->gr_backup->gpwrdn_local;
++		if (gpwrdn.b.dis_vbus == 1) {
++			gpwrdn.d32 = 0;
++			gpwrdn.b.dis_vbus = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		}
++
++		if (gpwrdn_temp.b.idsts) {
++			core_if->op_state = B_PERIPHERAL;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_pcd_start(core_if);
++		} else {
++			core_if->op_state = A_HOST;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_hcd_start(core_if);
++		}
++	}
++
++	if (core_if->adp_enable) {
++		uint8_t is_host = 0;
++		DWC_SPINUNLOCK(core_if->lock);
++		/* Change the core_if's lock to hcd/pcd lock depend on mode? */
++#ifndef DWC_HOST_ONLY
++		if (gpwrdn_temp.b.idsts)
++			core_if->lock = otg_dev->pcd->lock;
++#endif
++#ifndef DWC_DEVICE_ONLY
++		if (!gpwrdn_temp.b.idsts) {
++				core_if->lock = otg_dev->hcd->lock;
++				is_host = 1;
++		}
++#endif
++		DWC_PRINTF("RESTART ADP\n");
++		if (core_if->adp.probe_enabled)
++			dwc_otg_adp_probe_stop(core_if);
++		if (core_if->adp.sense_enabled)
++			dwc_otg_adp_sense_stop(core_if);
++		if (core_if->adp.sense_timer_started)
++			DWC_TIMER_CANCEL(core_if->adp.sense_timer);
++		if (core_if->adp.vbuson_timer_started)
++			DWC_TIMER_CANCEL(core_if->adp.vbuson_timer);
++		core_if->adp.probe_timer_values[0] = -1;
++		core_if->adp.probe_timer_values[1] = -1;
++		core_if->adp.sense_timer_started = 0;
++		core_if->adp.vbuson_timer_started = 0;
++		core_if->adp.probe_counter = 0;
++		core_if->adp.gpwrdn = 0;
++
++		/* Disable PMU and restart ADP */
++		gpwrdn_temp.d32 = 0;
++		gpwrdn_temp.b.pmuactv = 1;
++		gpwrdn_temp.b.pmuintsel = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		DWC_PRINTF("Check point 1\n");
++		dwc_mdelay(110);
++		dwc_otg_adp_start(core_if, is_host);
++		DWC_SPINLOCK(core_if->lock);
++	}
++
++
++	return 1;
++}
++
++static int32_t dwc_otg_handle_pwrdn_session_change(dwc_otg_core_if_t * core_if)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	int32_t otg_cap_param = core_if->core_params->otg_cap;
++	DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__);
++
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	if (core_if->power_down == 2) {
++		if (!core_if->hibernation_suspend) {
++			DWC_PRINTF("Already exited from Hibernation\n");
++			return 1;
++		}
++
++		if ((otg_cap_param != DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE ||
++			 otg_cap_param != DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE) &&
++			gpwrdn.b.bsessvld == 0) {
++			/* Save gpwrdn register for further usage if stschng interrupt */
++			core_if->gr_backup->gpwrdn_local =
++				DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++			/*Exit from ISR and wait for stschng interrupt with bsessvld = 1 */
++			return 1;
++		}
++
++		/* Switch on the voltage to the core */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnswtch = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		/* Reset the core */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnrstn = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		/* Disable power clamps */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnclmp = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++		/* Remove reset the core signal */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pwrdnrstn = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++		dwc_udelay(10);
++
++		/* Disable PMU interrupt */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuintsel = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		/*Indicates that we are exiting from hibernation */
++		core_if->hibernation_suspend = 0;
++
++		/* Disable PMU */
++		gpwrdn.d32 = 0;
++		gpwrdn.b.pmuactv = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++		dwc_udelay(10);
++
++		core_if->op_state = B_PERIPHERAL;
++		dwc_otg_core_init(core_if);
++		dwc_otg_enable_global_interrupts(core_if);
++		cil_pcd_start(core_if);
++
++		if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE ||
++			otg_cap_param == DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE) {
++			/*
++			 * Initiate SRP after initial ADP probe.
++			 */
++			dwc_otg_initiate_srp(core_if);
++		}
++	}
++
++	return 1;
++}
++/**
++ * This interrupt indicates that the Wakeup Logic has detected a
++ * status change either on IDDIG or BSessVld.
++ */
++static uint32_t dwc_otg_handle_pwrdn_stschng_intr(dwc_otg_device_t *otg_dev)
++{
++	int retval;
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	gpwrdn_data_t gpwrdn_temp = {.d32 = 0 };
++	dwc_otg_core_if_t *core_if = otg_dev->core_if;
++
++	DWC_PRINTF("%s called\n", __FUNCTION__);
++
++	if (core_if->power_down == 2) {
++		if (core_if->hibernation_suspend <= 0) {
++			DWC_PRINTF("Already exited from Hibernation\n");
++			return 1;
++		} else
++			gpwrdn_temp.d32 = core_if->gr_backup->gpwrdn_local;
++
++	} else {
++		gpwrdn_temp.d32 = core_if->adp.gpwrdn;
++	}
++
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++
++	if (gpwrdn.b.idsts ^ gpwrdn_temp.b.idsts) {
++		retval = dwc_otg_handle_pwrdn_idsts_change(otg_dev);
++	} else if (gpwrdn.b.bsessvld ^ gpwrdn_temp.b.bsessvld) {
++		retval = dwc_otg_handle_pwrdn_session_change(core_if);
++	}
++
++	return retval;
++}
++
++/**
++ * This interrupt indicates that the Wakeup Logic has detected a
++ * SRP.
++ */
++static int32_t dwc_otg_handle_pwrdn_srp_intr(dwc_otg_core_if_t * core_if)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++
++	DWC_PRINTF("%s called\n", __FUNCTION__);
++
++	if (!core_if->hibernation_suspend) {
++		DWC_PRINTF("Already exited from Hibernation\n");
++		return 1;
++	}
++#ifdef DWC_DEV_SRPCAP
++	if (core_if->pwron_timer_started) {
++		core_if->pwron_timer_started = 0;
++		DWC_TIMER_CANCEL(core_if->pwron_timer);
++	}
++#endif
++
++	/* Switch on the voltage to the core */
++	gpwrdn.b.pwrdnswtch = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Reset the core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Disable power clamps */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnclmp = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Remove reset the core signal */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable PMU interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuintsel = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Indicates that we are exiting from hibernation */
++	core_if->hibernation_suspend = 0;
++
++	/* Disable PMU */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Programm Disable VBUS to 0 */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.dis_vbus = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/*Initialize the core as Host */
++	core_if->op_state = A_HOST;
++	dwc_otg_core_init(core_if);
++	dwc_otg_enable_global_interrupts(core_if);
++	cil_hcd_start(core_if);
++
++	return 1;
++}
++
++/** This interrupt indicates that restore command after Hibernation
++ * was completed by the core. */
++int32_t dwc_otg_handle_restore_done_intr(dwc_otg_core_if_t * core_if)
++{
++	pcgcctl_data_t pcgcctl;
++	DWC_DEBUGPL(DBG_ANY, "++Restore Done Interrupt++\n");
++
++	//TODO De-assert restore signal. 8.a
++	pcgcctl.d32 = DWC_READ_REG32(core_if->pcgcctl);
++	if (pcgcctl.b.restoremode == 1) {
++		gintmsk_data_t gintmsk = {.d32 = 0 };
++		/*
++		 * If restore mode is Remote Wakeup,
++		 * unmask Remote Wakeup interrupt.
++		 */
++		gintmsk.b.wkupintr = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk,
++				 0, gintmsk.d32);
++	}
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that a device has been disconnected from
++ * the root port.
++ */
++int32_t dwc_otg_handle_disconnect_intr(dwc_otg_core_if_t * core_if)
++{
++	gintsts_data_t gintsts;
++
++	DWC_DEBUGPL(DBG_ANY, "++Disconnect Detected Interrupt++ (%s) %s\n",
++		    (dwc_otg_is_host_mode(core_if) ? "Host" : "Device"),
++		    op_state_str(core_if));
++
++/** @todo Consolidate this if statement. */
++#ifndef DWC_HOST_ONLY
++	if (core_if->op_state == B_HOST) {
++		/* If in device mode Disconnect and stop the HCD, then
++		 * start the PCD. */
++		DWC_SPINUNLOCK(core_if->lock);
++		cil_hcd_disconnect(core_if);
++		cil_pcd_start(core_if);
++		DWC_SPINLOCK(core_if->lock);
++		core_if->op_state = B_PERIPHERAL;
++	} else if (dwc_otg_is_device_mode(core_if)) {
++		gotgctl_data_t gotgctl = {.d32 = 0 };
++		gotgctl.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->gotgctl);
++		if (gotgctl.b.hstsethnpen == 1) {
++			/* Do nothing, if HNP in process the OTG
++			 * interrupt "Host Negotiation Detected"
++			 * interrupt will do the mode switch.
++			 */
++		} else if (gotgctl.b.devhnpen == 0) {
++			/* If in device mode Disconnect and stop the HCD, then
++			 * start the PCD. */
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_hcd_disconnect(core_if);
++			cil_pcd_start(core_if);
++			DWC_SPINLOCK(core_if->lock);
++			core_if->op_state = B_PERIPHERAL;
++		} else {
++			DWC_DEBUGPL(DBG_ANY, "!a_peripheral && !devhnpen\n");
++		}
++	} else {
++		if (core_if->op_state == A_HOST) {
++			/* A-Cable still connected but device disconnected. */
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_hcd_disconnect(core_if);
++			DWC_SPINLOCK(core_if->lock);
++			if (core_if->adp_enable) {
++				gpwrdn_data_t gpwrdn = { .d32 = 0 };
++				cil_hcd_stop(core_if);
++				/* Enable Power Down Logic */
++				gpwrdn.b.pmuintsel = 1;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_otg_adp_probe_start(core_if);
++
++				/* Power off the core */
++				if (core_if->power_down == 2) {
++					gpwrdn.d32 = 0;
++					gpwrdn.b.pwrdnswtch = 1;
++					DWC_MODIFY_REG32
++					    (&core_if->core_global_regs->gpwrdn,
++					     gpwrdn.d32, 0);
++				}
++			}
++		}
++	}
++#endif
++	/* Change to L3(OFF) state */
++	core_if->lx_state = DWC_OTG_L3;
++
++	gintsts.d32 = 0;
++	gintsts.b.disconnect = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++	return 1;
++}
++
++/**
++ * This interrupt indicates that SUSPEND state has been detected on
++ * the USB.
++ *
++ * For HNP the USB Suspend interrupt signals the change from
++ * "a_peripheral" to "a_host".
++ *
++ * When power management is enabled the core will be put in low power
++ * mode.
++ */
++int32_t dwc_otg_handle_usb_suspend_intr(dwc_otg_core_if_t * core_if)
++{
++	dsts_data_t dsts;
++	gintsts_data_t gintsts;
++	dcfg_data_t dcfg;
++
++	DWC_DEBUGPL(DBG_ANY, "USB SUSPEND\n");
++
++	if (dwc_otg_is_device_mode(core_if)) {
++		/* Check the Device status register to determine if the Suspend
++		 * state is active. */
++		dsts.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++		DWC_DEBUGPL(DBG_PCD, "DSTS=0x%0x\n", dsts.d32);
++		DWC_DEBUGPL(DBG_PCD, "DSTS.Suspend Status=%d "
++			    "HWCFG4.power Optimize=%d\n",
++			    dsts.b.suspsts, core_if->hwcfg4.b.power_optimiz);
++
++#ifdef PARTIAL_POWER_DOWN
++/** @todo Add a module parameter for power management. */
++
++		if (dsts.b.suspsts && core_if->hwcfg4.b.power_optimiz) {
++			pcgcctl_data_t power = {.d32 = 0 };
++			DWC_DEBUGPL(DBG_CIL, "suspend\n");
++
++			power.b.pwrclmp = 1;
++			DWC_WRITE_REG32(core_if->pcgcctl, power.d32);
++
++			power.b.rstpdwnmodule = 1;
++			DWC_MODIFY_REG32(core_if->pcgcctl, 0, power.d32);
++
++			power.b.stoppclk = 1;
++			DWC_MODIFY_REG32(core_if->pcgcctl, 0, power.d32);
++
++		} else {
++			DWC_DEBUGPL(DBG_ANY, "disconnect?\n");
++		}
++#endif
++		/* PCD callback for suspend. Release the lock inside of callback function */
++		cil_pcd_suspend(core_if);
++		if (core_if->power_down == 2)
++		{
++			dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++			DWC_DEBUGPL(DBG_ANY,"lx_state = %08x\n",core_if->lx_state);
++			DWC_DEBUGPL(DBG_ANY," device address = %08d\n",dcfg.b.devaddr);
++
++			if (core_if->lx_state != DWC_OTG_L3 && dcfg.b.devaddr) {
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				gpwrdn_data_t gpwrdn = {.d32 = 0 };
++				gusbcfg_data_t gusbcfg = {.d32 = 0 };
++
++				/* Change to L2(suspend) state */
++				core_if->lx_state = DWC_OTG_L2;
++
++				/* Clear interrupt in gintsts */
++				gintsts.d32 = 0;
++				gintsts.b.usbsuspend = 1;
++				DWC_WRITE_REG32(&core_if->core_global_regs->
++						gintsts, gintsts.d32);
++				DWC_PRINTF("Start of hibernation completed\n");
++				dwc_otg_save_global_regs(core_if);
++				dwc_otg_save_dev_regs(core_if);
++
++				gusbcfg.d32 =
++				    DWC_READ_REG32(&core_if->core_global_regs->
++						   gusbcfg);
++				if (gusbcfg.b.ulpi_utmi_sel == 1) {
++					/* ULPI interface */
++					/* Suspend the Phy Clock */
++					pcgcctl.d32 = 0;
++					pcgcctl.b.stoppclk = 1;
++					DWC_MODIFY_REG32(core_if->pcgcctl, 0,
++							 pcgcctl.d32);
++					dwc_udelay(10);
++					gpwrdn.b.pmuactv = 1;
++					DWC_MODIFY_REG32(&core_if->
++							 core_global_regs->
++							 gpwrdn, 0, gpwrdn.d32);
++				} else {
++					/* UTMI+ Interface */
++					gpwrdn.b.pmuactv = 1;
++					DWC_MODIFY_REG32(&core_if->
++							 core_global_regs->
++							 gpwrdn, 0, gpwrdn.d32);
++					dwc_udelay(10);
++					pcgcctl.b.stoppclk = 1;
++					DWC_MODIFY_REG32(core_if->pcgcctl, 0,
++							 pcgcctl.d32);
++					dwc_udelay(10);
++				}
++
++				/* Set flag to indicate that we are in hibernation */
++				core_if->hibernation_suspend = 1;
++				/* Enable interrupts from wake up logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuintsel = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				/* Unmask device mode interrupts in GPWRDN */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.rst_det_msk = 1;
++				gpwrdn.b.lnstchng_msk = 1;
++				gpwrdn.b.sts_chngint_msk = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				/* Enable Power Down Clamp */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pwrdnclmp = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				/* Switch off VDD */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++
++				/* Save gpwrdn register for further usage if stschng interrupt */
++				core_if->gr_backup->gpwrdn_local =
++							DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++				DWC_PRINTF("Hibernation completed\n");
++
++				return 1;
++			}
++		} else if (core_if->power_down == 3) {
++			pcgcctl_data_t pcgcctl = {.d32 = 0 };
++			dcfg.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dcfg);
++			DWC_DEBUGPL(DBG_ANY, "lx_state = %08x\n",core_if->lx_state);
++			DWC_DEBUGPL(DBG_ANY, " device address = %08d\n",dcfg.b.devaddr);
++
++			if (core_if->lx_state != DWC_OTG_L3 && dcfg.b.devaddr) {
++				DWC_DEBUGPL(DBG_ANY, "Start entering to extended hibernation\n");
++				core_if->xhib = 1;
++
++				/* Clear interrupt in gintsts */
++				gintsts.d32 = 0;
++				gintsts.b.usbsuspend = 1;
++				DWC_WRITE_REG32(&core_if->core_global_regs->
++					gintsts, gintsts.d32);
++
++				dwc_otg_save_global_regs(core_if);
++				dwc_otg_save_dev_regs(core_if);
++
++				/* Wait for 10 PHY clocks */
++				dwc_udelay(10);
++
++				/* Program GPIO register while entering to xHib */
++				DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, 0x1);
++
++				pcgcctl.b.enbl_extnd_hiber = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++				DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++
++				pcgcctl.d32 = 0;
++				pcgcctl.b.extnd_hiber_pwrclmp = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++
++				pcgcctl.d32 = 0;
++				pcgcctl.b.extnd_hiber_switch = 1;
++				core_if->gr_backup->xhib_gpwrdn = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++				core_if->gr_backup->xhib_pcgcctl = DWC_READ_REG32(core_if->pcgcctl) | pcgcctl.d32;
++				DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++
++				DWC_DEBUGPL(DBG_ANY, "Finished entering to extended hibernation\n");
++
++				return 1;
++			}
++		}
++	} else {
++		if (core_if->op_state == A_PERIPHERAL) {
++			DWC_DEBUGPL(DBG_ANY, "a_peripheral->a_host\n");
++			/* Clear the a_peripheral flag, back to a_host. */
++			DWC_SPINUNLOCK(core_if->lock);
++			cil_pcd_stop(core_if);
++			cil_hcd_start(core_if);
++			DWC_SPINLOCK(core_if->lock);
++			core_if->op_state = A_HOST;
++		}
++	}
++
++	/* Change to L2(suspend) state */
++	core_if->lx_state = DWC_OTG_L2;
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.usbsuspend = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++static int32_t dwc_otg_handle_xhib_exit_intr(dwc_otg_core_if_t * core_if)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	gahbcfg_data_t gahbcfg = {.d32 = 0 };
++
++	dwc_udelay(10);
++
++	/* Program GPIO register while entering to xHib */
++	DWC_WRITE_REG32(&core_if->core_global_regs->ggpio, 0x0);
++
++	pcgcctl.d32 = core_if->gr_backup->xhib_pcgcctl;
++	pcgcctl.b.extnd_hiber_pwrclmp = 0;
++	DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++	dwc_udelay(10);
++
++	gpwrdn.d32 = core_if->gr_backup->xhib_gpwrdn;
++	gpwrdn.b.restore = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32);
++	dwc_udelay(10);
++
++	restore_lpm_i2c_regs(core_if);
++
++	pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14);
++	pcgcctl.b.max_xcvrselect = 1;
++	pcgcctl.b.ess_reg_restored = 0;
++	pcgcctl.b.extnd_hiber_switch = 0;
++	pcgcctl.b.extnd_hiber_pwrclmp = 0;
++	pcgcctl.b.enbl_extnd_hiber = 1;
++	DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++
++	gahbcfg.d32 = core_if->gr_backup->gahbcfg_local;
++	gahbcfg.b.glblintrmsk = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gahbcfg, gahbcfg.d32);
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, 0xFFFFFFFF);
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, 0x1 << 16);
++
++	DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg,
++			core_if->gr_backup->gusbcfg_local);
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg,
++			core_if->dr_backup->dcfg);
++
++	pcgcctl.d32 = 0;
++	pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14);
++	pcgcctl.b.max_xcvrselect = 1;
++	pcgcctl.d32 |= 0x608;
++	DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++	dwc_udelay(10);
++
++	pcgcctl.d32 = 0;
++	pcgcctl.d32 = core_if->gr_backup->pcgcctl_local & (0x3FFFF << 14);
++	pcgcctl.b.max_xcvrselect = 1;
++	pcgcctl.b.ess_reg_restored = 1;
++	pcgcctl.b.enbl_extnd_hiber = 1;
++	pcgcctl.b.rstpdwnmodule = 1;
++	pcgcctl.b.restoremode = 1;
++	DWC_WRITE_REG32(core_if->pcgcctl, pcgcctl.d32);
++
++	DWC_DEBUGPL(DBG_ANY, "%s called\n", __FUNCTION__);
++
++	return 1;
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++/**
++ * This function hadles LPM transaction received interrupt.
++ */
++static int32_t dwc_otg_handle_lpm_intr(dwc_otg_core_if_t * core_if)
++{
++	glpmcfg_data_t lpmcfg;
++	gintsts_data_t gintsts;
++
++	if (!core_if->core_params->lpm_enable) {
++		DWC_PRINTF("Unexpected LPM interrupt\n");
++	}
++
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	DWC_PRINTF("LPM config register = 0x%08x\n", lpmcfg.d32);
++
++	if (dwc_otg_is_host_mode(core_if)) {
++		cil_hcd_sleep(core_if);
++	} else {
++		lpmcfg.b.hird_thres |= (1 << 4);
++		DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg,
++				lpmcfg.d32);
++	}
++
++	/* Examine prt_sleep_sts after TL1TokenTetry period max (10 us) */
++	dwc_udelay(10);
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	if (lpmcfg.b.prt_sleep_sts) {
++		/* Save the current state */
++		core_if->lx_state = DWC_OTG_L1;
++	}
++
++	/* Clear interrupt  */
++	gintsts.d32 = 0;
++	gintsts.b.lpmtranrcvd = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++	return 1;
++}
++#endif /* CONFIG_USB_DWC_OTG_LPM */
++
++/**
++ * This function returns the Core Interrupt register.
++ */
++static inline uint32_t dwc_otg_read_common_intr(dwc_otg_core_if_t * core_if, gintmsk_data_t *reenable_gintmsk, dwc_otg_hcd_t *hcd)
++{
++	gahbcfg_data_t gahbcfg = {.d32 = 0 };
++	gintsts_data_t gintsts;
++	gintmsk_data_t gintmsk;
++	gintmsk_data_t gintmsk_common = {.d32 = 0 };
++	gintmsk_common.b.wkupintr = 1;
++	gintmsk_common.b.sessreqintr = 1;
++	gintmsk_common.b.conidstschng = 1;
++	gintmsk_common.b.otgintr = 1;
++	gintmsk_common.b.modemismatch = 1;
++	gintmsk_common.b.disconnect = 1;
++	gintmsk_common.b.usbsuspend = 1;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	gintmsk_common.b.lpmtranrcvd = 1;
++#endif
++	gintmsk_common.b.restoredone = 1;
++	if(dwc_otg_is_device_mode(core_if))
++	{
++		/** @todo: The port interrupt occurs while in device
++		 * mode. Added code to CIL to clear the interrupt for now!
++		 */
++		gintmsk_common.b.portintr = 1;
++	}
++	if(fiq_enable) {
++		local_fiq_disable();
++		fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++		gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++		gintmsk.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++		/* Pull in the interrupts that the FIQ has masked */
++		gintmsk.d32 |= ~(hcd->fiq_state->gintmsk_saved.d32);
++		gintmsk.d32 |= gintmsk_common.d32;
++		/* for the upstairs function to reenable - have to read it here in case FIQ triggers again */
++		reenable_gintmsk->d32 = gintmsk.d32;
++		fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++		local_fiq_enable();
++	} else {
++		gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++		gintmsk.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++	}
++
++	gahbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gahbcfg);
++
++#ifdef DEBUG
++	/* if any common interrupts set */
++	if (gintsts.d32 & gintmsk_common.d32) {
++		DWC_DEBUGPL(DBG_ANY, "common_intr: gintsts=%08x  gintmsk=%08x\n",
++			    gintsts.d32, gintmsk.d32);
++	}
++#endif
++	if (!fiq_enable){
++		if (gahbcfg.b.glblintrmsk)
++			return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32);
++		else
++			return 0;
++	} else {
++		/* Our IRQ kicker is no longer the USB hardware, it's the MPHI interface.
++		 * Can't trust the global interrupt mask bit in this case.
++		 */
++		return ((gintsts.d32 & gintmsk.d32) & gintmsk_common.d32);
++	}
++
++}
++
++/* MACRO for clearing interupt bits in GPWRDN register */
++#define CLEAR_GPWRDN_INTR(__core_if,__intr) \
++do { \
++		gpwrdn_data_t gpwrdn = {.d32=0}; \
++		gpwrdn.b.__intr = 1; \
++		DWC_MODIFY_REG32(&__core_if->core_global_regs->gpwrdn, \
++		0, gpwrdn.d32); \
++} while (0)
++
++/**
++ * Common interrupt handler.
++ *
++ * The common interrupts are those that occur in both Host and Device mode.
++ * This handler handles the following interrupts:
++ * - Mode Mismatch Interrupt
++ * - Disconnect Interrupt
++ * - OTG Interrupt
++ * - Connector ID Status Change Interrupt
++ * - Session Request Interrupt.
++ * - Resume / Remote Wakeup Detected Interrupt.
++ * - LPM Transaction Received Interrupt
++ * - ADP Transaction Received Interrupt
++ *
++ */
++int32_t dwc_otg_handle_common_intr(void *dev)
++{
++	int retval = 0;
++	gintsts_data_t gintsts;
++	gintmsk_data_t gintmsk_reenable = { .d32 = 0 };
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	dwc_otg_device_t *otg_dev = dev;
++	dwc_otg_core_if_t *core_if = otg_dev->core_if;
++	gpwrdn.d32 = DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++	if (dwc_otg_is_device_mode(core_if))
++		core_if->frame_num = dwc_otg_get_frame_number(core_if);
++
++	if (core_if->lock)
++		DWC_SPINLOCK(core_if->lock);
++
++	if (core_if->power_down == 3 && core_if->xhib == 1) {
++		DWC_DEBUGPL(DBG_ANY, "Exiting from xHIB state\n");
++		retval |= dwc_otg_handle_xhib_exit_intr(core_if);
++		core_if->xhib = 2;
++		if (core_if->lock)
++			DWC_SPINUNLOCK(core_if->lock);
++
++		return retval;
++	}
++
++	if (core_if->hibernation_suspend <= 0) {
++		/* read_common will have to poke the FIQ's saved mask. We must then clear this mask at the end
++		 * of this handler - god only knows why it's done like this
++		 */
++		gintsts.d32 = dwc_otg_read_common_intr(core_if, &gintmsk_reenable, otg_dev->hcd);
++
++		if (gintsts.b.modemismatch) {
++			retval |= dwc_otg_handle_mode_mismatch_intr(core_if);
++		}
++		if (gintsts.b.otgintr) {
++			retval |= dwc_otg_handle_otg_intr(core_if);
++		}
++		if (gintsts.b.conidstschng) {
++			retval |=
++			    dwc_otg_handle_conn_id_status_change_intr(core_if);
++		}
++		if (gintsts.b.disconnect) {
++			retval |= dwc_otg_handle_disconnect_intr(core_if);
++		}
++		if (gintsts.b.sessreqintr) {
++			retval |= dwc_otg_handle_session_req_intr(core_if);
++		}
++		if (gintsts.b.wkupintr) {
++			retval |= dwc_otg_handle_wakeup_detected_intr(core_if);
++		}
++		if (gintsts.b.usbsuspend) {
++			retval |= dwc_otg_handle_usb_suspend_intr(core_if);
++		}
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		if (gintsts.b.lpmtranrcvd) {
++			retval |= dwc_otg_handle_lpm_intr(core_if);
++		}
++#endif
++		if (gintsts.b.restoredone) {
++			gintsts.d32 = 0;
++	                if (core_if->power_down == 2)
++				core_if->hibernation_suspend = -1;
++			else if (core_if->power_down == 3 && core_if->xhib == 2) {
++				gpwrdn_data_t gpwrdn = {.d32 = 0 };
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				dctl_data_t dctl = {.d32 = 0 };
++
++				DWC_WRITE_REG32(&core_if->core_global_regs->
++						gintsts, 0xFFFFFFFF);
++
++				DWC_DEBUGPL(DBG_ANY,
++					    "RESTORE DONE generated\n");
++
++				gpwrdn.b.restore = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++				dwc_udelay(10);
++
++				pcgcctl.b.rstpdwnmodule = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++
++				DWC_WRITE_REG32(&core_if->core_global_regs->gusbcfg, core_if->gr_backup->gusbcfg_local);
++				DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dcfg, core_if->dr_backup->dcfg);
++				DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, core_if->dr_backup->dctl);
++				dwc_udelay(50);
++
++				dctl.b.pwronprgdone = 1;
++				DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++				dwc_udelay(10);
++
++				dwc_otg_restore_global_regs(core_if);
++				dwc_otg_restore_dev_regs(core_if, 0);
++
++				dctl.d32 = 0;
++				dctl.b.pwronprgdone = 1;
++				DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0);
++				dwc_udelay(10);
++
++				pcgcctl.d32 = 0;
++				pcgcctl.b.enbl_extnd_hiber = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++
++				/* The core will be in ON STATE */
++				core_if->lx_state = DWC_OTG_L0;
++				core_if->xhib = 0;
++
++				DWC_SPINUNLOCK(core_if->lock);
++				if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) {
++					core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p);
++				}
++				DWC_SPINLOCK(core_if->lock);
++
++			}
++
++			gintsts.b.restoredone = 1;
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintsts,gintsts.d32);
++			DWC_PRINTF(" --Restore done interrupt received-- \n");
++			retval |= 1;
++		}
++		if (gintsts.b.portintr && dwc_otg_is_device_mode(core_if)) {
++			/* The port interrupt occurs while in device mode with HPRT0
++			 * Port Enable/Disable.
++			 */
++			gintsts.d32 = 0;
++			gintsts.b.portintr = 1;
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintsts,gintsts.d32);
++			retval |= 1;
++			gintmsk_reenable.b.portintr = 1;
++
++		}
++		/* Did we actually handle anything? if so, unmask the interrupt */
++//		fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "CILOUT %1d", retval);
++//		fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintsts.d32);
++//		fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintmsk_reenable.d32);
++		if (retval && fiq_enable) {
++			DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk_reenable.d32);
++		}
++
++	} else {
++		DWC_DEBUGPL(DBG_ANY, "gpwrdn=%08x\n", gpwrdn.d32);
++
++		if (gpwrdn.b.disconn_det && gpwrdn.b.disconn_det_msk) {
++			CLEAR_GPWRDN_INTR(core_if, disconn_det);
++			if (gpwrdn.b.linestate == 0) {
++				dwc_otg_handle_pwrdn_disconnect_intr(core_if);
++			} else {
++				DWC_PRINTF("Disconnect detected while linestate is not 0\n");
++			}
++
++			retval |= 1;
++		}
++		if (gpwrdn.b.lnstschng && gpwrdn.b.lnstchng_msk) {
++			CLEAR_GPWRDN_INTR(core_if, lnstschng);
++			/* remote wakeup from hibernation */
++			if (gpwrdn.b.linestate == 2 || gpwrdn.b.linestate == 1) {
++				dwc_otg_handle_pwrdn_wakeup_detected_intr(core_if);
++			} else {
++				DWC_PRINTF("gpwrdn.linestate = %d\n", gpwrdn.b.linestate);
++			}
++			retval |= 1;
++		}
++		if (gpwrdn.b.rst_det && gpwrdn.b.rst_det_msk) {
++			CLEAR_GPWRDN_INTR(core_if, rst_det);
++			if (gpwrdn.b.linestate == 0) {
++				DWC_PRINTF("Reset detected\n");
++				retval |= dwc_otg_device_hibernation_restore(core_if, 0, 1);
++			}
++		}
++		if (gpwrdn.b.srp_det && gpwrdn.b.srp_det_msk) {
++			CLEAR_GPWRDN_INTR(core_if, srp_det);
++			dwc_otg_handle_pwrdn_srp_intr(core_if);
++			retval |= 1;
++		}
++	}
++	/* Handle ADP interrupt here */
++	if (gpwrdn.b.adp_int) {
++		DWC_PRINTF("ADP interrupt\n");
++		CLEAR_GPWRDN_INTR(core_if, adp_int);
++		dwc_otg_adp_handle_intr(core_if);
++		retval |= 1;
++	}
++	if (gpwrdn.b.sts_chngint && gpwrdn.b.sts_chngint_msk) {
++		DWC_PRINTF("STS CHNG interrupt asserted\n");
++		CLEAR_GPWRDN_INTR(core_if, sts_chngint);
++		dwc_otg_handle_pwrdn_stschng_intr(otg_dev);
++
++		retval |= 1;
++	}
++	if (core_if->lock)
++		DWC_SPINUNLOCK(core_if->lock);
++	return retval;
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_core_if.h
+@@ -0,0 +1,705 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_core_if.h $
++ * $Revision: #13 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#if !defined(__DWC_CORE_IF_H__)
++#define __DWC_CORE_IF_H__
++
++#include "dwc_os.h"
++
++/** @file
++ * This file defines DWC_OTG Core API
++ */
++
++struct dwc_otg_core_if;
++typedef struct dwc_otg_core_if dwc_otg_core_if_t;
++
++/** Maximum number of Periodic FIFOs */
++#define MAX_PERIO_FIFOS 15
++/** Maximum number of Periodic FIFOs */
++#define MAX_TX_FIFOS 15
++
++/** Maximum number of Endpoints/HostChannels */
++#define MAX_EPS_CHANNELS 16
++
++extern dwc_otg_core_if_t *dwc_otg_cil_init(const uint32_t * _reg_base_addr);
++extern void dwc_otg_core_init(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_cil_remove(dwc_otg_core_if_t * _core_if);
++
++extern void dwc_otg_enable_global_interrupts(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_disable_global_interrupts(dwc_otg_core_if_t * _core_if);
++
++extern uint8_t dwc_otg_is_device_mode(dwc_otg_core_if_t * _core_if);
++extern uint8_t dwc_otg_is_host_mode(dwc_otg_core_if_t * _core_if);
++
++extern uint8_t dwc_otg_is_dma_enable(dwc_otg_core_if_t * core_if);
++
++/** This function should be called on every hardware interrupt. */
++extern int32_t dwc_otg_handle_common_intr(void *otg_dev);
++
++/** @name OTG Core Parameters */
++/** @{ */
++
++/**
++ * Specifies the OTG capabilities. The driver will automatically
++ * detect the value for this parameter if none is specified.
++ * 0 - HNP and SRP capable (default)
++ * 1 - SRP Only capable
++ * 2 - No HNP/SRP capable
++ */
++extern int dwc_otg_set_param_otg_cap(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_otg_cap(dwc_otg_core_if_t * core_if);
++#define DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE 0
++#define DWC_OTG_CAP_PARAM_SRP_ONLY_CAPABLE 1
++#define DWC_OTG_CAP_PARAM_NO_HNP_SRP_CAPABLE 2
++#define dwc_param_otg_cap_default DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE
++
++extern int dwc_otg_set_param_opt(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_opt(dwc_otg_core_if_t * core_if);
++#define dwc_param_opt_default 1
++
++/**
++ * Specifies whether to use slave or DMA mode for accessing the data
++ * FIFOs. The driver will automatically detect the value for this
++ * parameter if none is specified.
++ * 0 - Slave
++ * 1 - DMA (default, if available)
++ */
++extern int dwc_otg_set_param_dma_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_dma_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_dma_enable_default 1
++
++/**
++ * When DMA mode is enabled specifies whether to use
++ * address DMA or DMA Descritor mode for accessing the data
++ * FIFOs in device mode. The driver will automatically detect
++ * the value for this parameter if none is specified.
++ * 0 - address DMA
++ * 1 - DMA Descriptor(default, if available)
++ */
++extern int dwc_otg_set_param_dma_desc_enable(dwc_otg_core_if_t * core_if,
++					     int32_t val);
++extern int32_t dwc_otg_get_param_dma_desc_enable(dwc_otg_core_if_t * core_if);
++//#define dwc_param_dma_desc_enable_default 1
++#define dwc_param_dma_desc_enable_default 0 // Broadcom BCM2708
++
++/** The DMA Burst size (applicable only for External DMA
++ * Mode). 1, 4, 8 16, 32, 64, 128, 256 (default 32)
++ */
++extern int dwc_otg_set_param_dma_burst_size(dwc_otg_core_if_t * core_if,
++					    int32_t val);
++extern int32_t dwc_otg_get_param_dma_burst_size(dwc_otg_core_if_t * core_if);
++#define dwc_param_dma_burst_size_default 32
++
++/**
++ * Specifies the maximum speed of operation in host and device mode.
++ * The actual speed depends on the speed of the attached device and
++ * the value of phy_type. The actual speed depends on the speed of the
++ * attached device.
++ * 0 - High Speed (default)
++ * 1 - Full Speed
++ */
++extern int dwc_otg_set_param_speed(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_speed(dwc_otg_core_if_t * core_if);
++#define dwc_param_speed_default 0
++#define DWC_SPEED_PARAM_HIGH 0
++#define DWC_SPEED_PARAM_FULL 1
++
++/** Specifies whether low power mode is supported when attached
++ *	to a Full Speed or Low Speed device in host mode.
++ * 0 - Don't support low power mode (default)
++ * 1 - Support low power mode
++ */
++extern int dwc_otg_set_param_host_support_fs_ls_low_power(dwc_otg_core_if_t *
++							  core_if, int32_t val);
++extern int32_t dwc_otg_get_param_host_support_fs_ls_low_power(dwc_otg_core_if_t
++							      * core_if);
++#define dwc_param_host_support_fs_ls_low_power_default 0
++
++/** Specifies the PHY clock rate in low power mode when connected to a
++ * Low Speed device in host mode. This parameter is applicable only if
++ * HOST_SUPPORT_FS_LS_LOW_POWER is enabled. If PHY_TYPE is set to FS
++ * then defaults to 6 MHZ otherwise 48 MHZ.
++ *
++ * 0 - 48 MHz
++ * 1 - 6 MHz
++ */
++extern int dwc_otg_set_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t *
++						       core_if, int32_t val);
++extern int32_t dwc_otg_get_param_host_ls_low_power_phy_clk(dwc_otg_core_if_t *
++							   core_if);
++#define dwc_param_host_ls_low_power_phy_clk_default 0
++#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ 0
++#define DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ 1
++
++/**
++ * 0 - Use cC FIFO size parameters
++ * 1 - Allow dynamic FIFO sizing (default)
++ */
++extern int dwc_otg_set_param_enable_dynamic_fifo(dwc_otg_core_if_t * core_if,
++						 int32_t val);
++extern int32_t dwc_otg_get_param_enable_dynamic_fifo(dwc_otg_core_if_t *
++						     core_if);
++#define dwc_param_enable_dynamic_fifo_default 1
++
++/** Total number of 4-byte words in the data FIFO memory. This
++ * memory includes the Rx FIFO, non-periodic Tx FIFO, and periodic
++ * Tx FIFOs.
++ * 32 to 32768 (default 8192)
++ * Note: The total FIFO memory depth in the FPGA configuration is 8192.
++ */
++extern int dwc_otg_set_param_data_fifo_size(dwc_otg_core_if_t * core_if,
++					    int32_t val);
++extern int32_t dwc_otg_get_param_data_fifo_size(dwc_otg_core_if_t * core_if);
++//#define dwc_param_data_fifo_size_default 8192
++#define dwc_param_data_fifo_size_default 0xFF0 // Broadcom BCM2708
++
++/** Number of 4-byte words in the Rx FIFO in device mode when dynamic
++ * FIFO sizing is enabled.
++ * 16 to 32768 (default 1064)
++ */
++extern int dwc_otg_set_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if,
++					      int32_t val);
++extern int32_t dwc_otg_get_param_dev_rx_fifo_size(dwc_otg_core_if_t * core_if);
++#define dwc_param_dev_rx_fifo_size_default 1064
++
++/** Number of 4-byte words in the non-periodic Tx FIFO in device mode
++ * when dynamic FIFO sizing is enabled.
++ * 16 to 32768 (default 1024)
++ */
++extern int dwc_otg_set_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t *
++						     core_if, int32_t val);
++extern int32_t dwc_otg_get_param_dev_nperio_tx_fifo_size(dwc_otg_core_if_t *
++							 core_if);
++#define dwc_param_dev_nperio_tx_fifo_size_default 1024
++
++/** Number of 4-byte words in each of the periodic Tx FIFOs in device
++ * mode when dynamic FIFO sizing is enabled.
++ * 4 to 768 (default 256)
++ */
++extern int dwc_otg_set_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t * core_if,
++						    int32_t val, int fifo_num);
++extern int32_t dwc_otg_get_param_dev_perio_tx_fifo_size(dwc_otg_core_if_t *
++							core_if, int fifo_num);
++#define dwc_param_dev_perio_tx_fifo_size_default 256
++
++/** Number of 4-byte words in the Rx FIFO in host mode when dynamic
++ * FIFO sizing is enabled.
++ * 16 to 32768 (default 1024)
++ */
++extern int dwc_otg_set_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if,
++					       int32_t val);
++extern int32_t dwc_otg_get_param_host_rx_fifo_size(dwc_otg_core_if_t * core_if);
++//#define dwc_param_host_rx_fifo_size_default 1024
++#define dwc_param_host_rx_fifo_size_default 774 // Broadcom BCM2708
++
++/** Number of 4-byte words in the non-periodic Tx FIFO in host mode
++ * when Dynamic FIFO sizing is enabled in the core.
++ * 16 to 32768 (default 1024)
++ */
++extern int dwc_otg_set_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t *
++						      core_if, int32_t val);
++extern int32_t dwc_otg_get_param_host_nperio_tx_fifo_size(dwc_otg_core_if_t *
++							  core_if);
++//#define dwc_param_host_nperio_tx_fifo_size_default 1024
++#define dwc_param_host_nperio_tx_fifo_size_default 0x100 // Broadcom BCM2708
++
++/** Number of 4-byte words in the host periodic Tx FIFO when dynamic
++ * FIFO sizing is enabled.
++ * 16 to 32768 (default 1024)
++ */
++extern int dwc_otg_set_param_host_perio_tx_fifo_size(dwc_otg_core_if_t *
++						     core_if, int32_t val);
++extern int32_t dwc_otg_get_param_host_perio_tx_fifo_size(dwc_otg_core_if_t *
++							 core_if);
++//#define dwc_param_host_perio_tx_fifo_size_default 1024
++#define dwc_param_host_perio_tx_fifo_size_default 0x200 // Broadcom BCM2708
++
++/** The maximum transfer size supported in bytes.
++ * 2047 to 65,535  (default 65,535)
++ */
++extern int dwc_otg_set_param_max_transfer_size(dwc_otg_core_if_t * core_if,
++					       int32_t val);
++extern int32_t dwc_otg_get_param_max_transfer_size(dwc_otg_core_if_t * core_if);
++#define dwc_param_max_transfer_size_default 65535
++
++/** The maximum number of packets in a transfer.
++ * 15 to 511  (default 511)
++ */
++extern int dwc_otg_set_param_max_packet_count(dwc_otg_core_if_t * core_if,
++					      int32_t val);
++extern int32_t dwc_otg_get_param_max_packet_count(dwc_otg_core_if_t * core_if);
++#define dwc_param_max_packet_count_default 511
++
++/** The number of host channel registers to use.
++ * 1 to 16 (default 12)
++ * Note: The FPGA configuration supports a maximum of 12 host channels.
++ */
++extern int dwc_otg_set_param_host_channels(dwc_otg_core_if_t * core_if,
++					   int32_t val);
++extern int32_t dwc_otg_get_param_host_channels(dwc_otg_core_if_t * core_if);
++//#define dwc_param_host_channels_default 12
++#define dwc_param_host_channels_default 8 // Broadcom BCM2708
++
++/** The number of endpoints in addition to EP0 available for device
++ * mode operations.
++ * 1 to 15 (default 6 IN and OUT)
++ * Note: The FPGA configuration supports a maximum of 6 IN and OUT
++ * endpoints in addition to EP0.
++ */
++extern int dwc_otg_set_param_dev_endpoints(dwc_otg_core_if_t * core_if,
++					   int32_t val);
++extern int32_t dwc_otg_get_param_dev_endpoints(dwc_otg_core_if_t * core_if);
++#define dwc_param_dev_endpoints_default 6
++
++/**
++ * Specifies the type of PHY interface to use. By default, the driver
++ * will automatically detect the phy_type.
++ *
++ * 0 - Full Speed PHY
++ * 1 - UTMI+ (default)
++ * 2 - ULPI
++ */
++extern int dwc_otg_set_param_phy_type(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_phy_type(dwc_otg_core_if_t * core_if);
++#define DWC_PHY_TYPE_PARAM_FS 0
++#define DWC_PHY_TYPE_PARAM_UTMI 1
++#define DWC_PHY_TYPE_PARAM_ULPI 2
++#define dwc_param_phy_type_default DWC_PHY_TYPE_PARAM_UTMI
++
++/**
++ * Specifies the UTMI+ Data Width. This parameter is
++ * applicable for a PHY_TYPE of UTMI+ or ULPI. (For a ULPI
++ * PHY_TYPE, this parameter indicates the data width between
++ * the MAC and the ULPI Wrapper.) Also, this parameter is
++ * applicable only if the OTG_HSPHY_WIDTH cC parameter was set
++ * to "8 and 16 bits", meaning that the core has been
++ * configured to work at either data path width.
++ *
++ * 8 or 16 bits (default 16)
++ */
++extern int dwc_otg_set_param_phy_utmi_width(dwc_otg_core_if_t * core_if,
++					    int32_t val);
++extern int32_t dwc_otg_get_param_phy_utmi_width(dwc_otg_core_if_t * core_if);
++//#define dwc_param_phy_utmi_width_default 16
++#define dwc_param_phy_utmi_width_default 8 // Broadcom BCM2708
++
++/**
++ * Specifies whether the ULPI operates at double or single
++ * data rate. This parameter is only applicable if PHY_TYPE is
++ * ULPI.
++ *
++ * 0 - single data rate ULPI interface with 8 bit wide data
++ * bus (default)
++ * 1 - double data rate ULPI interface with 4 bit wide data
++ * bus
++ */
++extern int dwc_otg_set_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if,
++					  int32_t val);
++extern int32_t dwc_otg_get_param_phy_ulpi_ddr(dwc_otg_core_if_t * core_if);
++#define dwc_param_phy_ulpi_ddr_default 0
++
++/**
++ * Specifies whether to use the internal or external supply to
++ * drive the vbus with a ULPI phy.
++ */
++extern int dwc_otg_set_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if,
++					       int32_t val);
++extern int32_t dwc_otg_get_param_phy_ulpi_ext_vbus(dwc_otg_core_if_t * core_if);
++#define DWC_PHY_ULPI_INTERNAL_VBUS 0
++#define DWC_PHY_ULPI_EXTERNAL_VBUS 1
++#define dwc_param_phy_ulpi_ext_vbus_default DWC_PHY_ULPI_INTERNAL_VBUS
++
++/**
++ * Specifies whether to use the I2Cinterface for full speed PHY. This
++ * parameter is only applicable if PHY_TYPE is FS.
++ * 0 - No (default)
++ * 1 - Yes
++ */
++extern int dwc_otg_set_param_i2c_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_i2c_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_i2c_enable_default 0
++
++extern int dwc_otg_set_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_ulpi_fs_ls(dwc_otg_core_if_t * core_if);
++#define dwc_param_ulpi_fs_ls_default 0
++
++extern int dwc_otg_set_param_ts_dline(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_ts_dline(dwc_otg_core_if_t * core_if);
++#define dwc_param_ts_dline_default 0
++
++/**
++ * Specifies whether dedicated transmit FIFOs are
++ * enabled for non periodic IN endpoints in device mode
++ * 0 - No
++ * 1 - Yes
++ */
++extern int dwc_otg_set_param_en_multiple_tx_fifo(dwc_otg_core_if_t * core_if,
++						 int32_t val);
++extern int32_t dwc_otg_get_param_en_multiple_tx_fifo(dwc_otg_core_if_t *
++						     core_if);
++#define dwc_param_en_multiple_tx_fifo_default 1
++
++/** Number of 4-byte words in each of the Tx FIFOs in device
++ * mode when dynamic FIFO sizing is enabled.
++ * 4 to 768 (default 256)
++ */
++extern int dwc_otg_set_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if,
++					      int fifo_num, int32_t val);
++extern int32_t dwc_otg_get_param_dev_tx_fifo_size(dwc_otg_core_if_t * core_if,
++						  int fifo_num);
++#define dwc_param_dev_tx_fifo_size_default 768
++
++/** Thresholding enable flag-
++ * bit 0 - enable non-ISO Tx thresholding
++ * bit 1 - enable ISO Tx thresholding
++ * bit 2 - enable Rx thresholding
++ */
++extern int dwc_otg_set_param_thr_ctl(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_thr_ctl(dwc_otg_core_if_t * core_if, int fifo_num);
++#define dwc_param_thr_ctl_default 0
++
++/** Thresholding length for Tx
++ * FIFOs in 32 bit DWORDs
++ */
++extern int dwc_otg_set_param_tx_thr_length(dwc_otg_core_if_t * core_if,
++					   int32_t val);
++extern int32_t dwc_otg_get_tx_thr_length(dwc_otg_core_if_t * core_if);
++#define dwc_param_tx_thr_length_default 64
++
++/** Thresholding length for Rx
++ *	FIFOs in 32 bit DWORDs
++ */
++extern int dwc_otg_set_param_rx_thr_length(dwc_otg_core_if_t * core_if,
++					   int32_t val);
++extern int32_t dwc_otg_get_rx_thr_length(dwc_otg_core_if_t * core_if);
++#define dwc_param_rx_thr_length_default 64
++
++/**
++ * Specifies whether LPM (Link Power Management) support is enabled
++ */
++extern int dwc_otg_set_param_lpm_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_lpm_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_lpm_enable_default 1
++
++/**
++ * Specifies whether PTI enhancement is enabled
++ */
++extern int dwc_otg_set_param_pti_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_pti_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_pti_enable_default 0
++
++/**
++ * Specifies whether MPI enhancement is enabled
++ */
++extern int dwc_otg_set_param_mpi_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_mpi_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_mpi_enable_default 0
++
++/**
++ * Specifies whether ADP capability is enabled
++ */
++extern int dwc_otg_set_param_adp_enable(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_adp_enable(dwc_otg_core_if_t * core_if);
++#define dwc_param_adp_enable_default 0
++
++/**
++ * Specifies whether IC_USB capability is enabled
++ */
++
++extern int dwc_otg_set_param_ic_usb_cap(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_ic_usb_cap(dwc_otg_core_if_t * core_if);
++#define dwc_param_ic_usb_cap_default 0
++
++extern int dwc_otg_set_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if,
++					   int32_t val);
++extern int32_t dwc_otg_get_param_ahb_thr_ratio(dwc_otg_core_if_t * core_if);
++#define dwc_param_ahb_thr_ratio_default 0
++
++extern int dwc_otg_set_param_power_down(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_power_down(dwc_otg_core_if_t * core_if);
++#define dwc_param_power_down_default 0
++
++extern int dwc_otg_set_param_reload_ctl(dwc_otg_core_if_t * core_if,
++					int32_t val);
++extern int32_t dwc_otg_get_param_reload_ctl(dwc_otg_core_if_t * core_if);
++#define dwc_param_reload_ctl_default 0
++
++extern int dwc_otg_set_param_dev_out_nak(dwc_otg_core_if_t * core_if,
++										int32_t val);
++extern int32_t dwc_otg_get_param_dev_out_nak(dwc_otg_core_if_t * core_if);
++#define dwc_param_dev_out_nak_default 0
++
++extern int dwc_otg_set_param_cont_on_bna(dwc_otg_core_if_t * core_if,
++										 int32_t val);
++extern int32_t dwc_otg_get_param_cont_on_bna(dwc_otg_core_if_t * core_if);
++#define dwc_param_cont_on_bna_default 0
++
++extern int dwc_otg_set_param_ahb_single(dwc_otg_core_if_t * core_if,
++										 int32_t val);
++extern int32_t dwc_otg_get_param_ahb_single(dwc_otg_core_if_t * core_if);
++#define dwc_param_ahb_single_default 0
++
++extern int dwc_otg_set_param_otg_ver(dwc_otg_core_if_t * core_if, int32_t val);
++extern int32_t dwc_otg_get_param_otg_ver(dwc_otg_core_if_t * core_if);
++#define dwc_param_otg_ver_default 0
++
++/** @} */
++
++/** @name Access to registers and bit-fields */
++
++/**
++ * Dump core registers and SPRAM
++ */
++extern void dwc_otg_dump_dev_registers(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_dump_spram(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_dump_host_registers(dwc_otg_core_if_t * _core_if);
++extern void dwc_otg_dump_global_registers(dwc_otg_core_if_t * _core_if);
++
++/**
++ * Get host negotiation status.
++ */
++extern uint32_t dwc_otg_get_hnpstatus(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get srp status
++ */
++extern uint32_t dwc_otg_get_srpstatus(dwc_otg_core_if_t * core_if);
++
++/**
++ * Set hnpreq bit in the GOTGCTL register.
++ */
++extern void dwc_otg_set_hnpreq(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get Content of SNPSID register.
++ */
++extern uint32_t dwc_otg_get_gsnpsid(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get current mode.
++ * Returns 0 if in device mode, and 1 if in host mode.
++ */
++extern uint32_t dwc_otg_get_mode(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of hnpcapable field in the GUSBCFG register
++ */
++extern uint32_t dwc_otg_get_hnpcapable(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of hnpcapable field in the GUSBCFG register
++ */
++extern void dwc_otg_set_hnpcapable(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of srpcapable field in the GUSBCFG register
++ */
++extern uint32_t dwc_otg_get_srpcapable(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of srpcapable field in the GUSBCFG register
++ */
++extern void dwc_otg_set_srpcapable(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of devspeed field in the DCFG register
++ */
++extern uint32_t dwc_otg_get_devspeed(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of devspeed field in the DCFG register
++ */
++extern void dwc_otg_set_devspeed(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get the value of busconnected field from the HPRT0 register
++ */
++extern uint32_t dwc_otg_get_busconnected(dwc_otg_core_if_t * core_if);
++
++/**
++ * Gets the device enumeration Speed.
++ */
++extern uint32_t dwc_otg_get_enumspeed(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of prtpwr field from the HPRT0 register
++ */
++extern uint32_t dwc_otg_get_prtpower(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of flag indicating core state - hibernated or not
++ */
++extern uint32_t dwc_otg_get_core_state(dwc_otg_core_if_t * core_if);
++
++/**
++ * Set value of prtpwr field from the HPRT0 register
++ */
++extern void dwc_otg_set_prtpower(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of prtsusp field from the HPRT0 regsiter
++ */
++extern uint32_t dwc_otg_get_prtsuspend(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of prtpwr field from the HPRT0 register
++ */
++extern void dwc_otg_set_prtsuspend(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of ModeChTimEn field from the HCFG regsiter
++ */
++extern uint32_t dwc_otg_get_mode_ch_tim(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of ModeChTimEn field from the HCFG regsiter
++ */
++extern void dwc_otg_set_mode_ch_tim(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of Fram Interval field from the HFIR regsiter
++ */
++extern uint32_t dwc_otg_get_fr_interval(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of Frame Interval field from the HFIR regsiter
++ */
++extern void dwc_otg_set_fr_interval(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Set value of prtres field from the HPRT0 register
++ *FIXME Remove?
++ */
++extern void dwc_otg_set_prtresume(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of rmtwkupsig bit in DCTL register
++ */
++extern uint32_t dwc_otg_get_remotewakesig(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of prt_sleep_sts field from the GLPMCFG register
++ */
++extern uint32_t dwc_otg_get_lpm_portsleepstatus(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of rem_wkup_en field from the GLPMCFG register
++ */
++extern uint32_t dwc_otg_get_lpm_remotewakeenabled(dwc_otg_core_if_t * core_if);
++
++/**
++ * Get value of appl_resp field from the GLPMCFG register
++ */
++extern uint32_t dwc_otg_get_lpmresponse(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of appl_resp field from the GLPMCFG register
++ */
++extern void dwc_otg_set_lpmresponse(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of hsic_connect field from the GLPMCFG register
++ */
++extern uint32_t dwc_otg_get_hsic_connect(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of hsic_connect field from the GLPMCFG register
++ */
++extern void dwc_otg_set_hsic_connect(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * Get value of inv_sel_hsic field from the GLPMCFG register.
++ */
++extern uint32_t dwc_otg_get_inv_sel_hsic(dwc_otg_core_if_t * core_if);
++/**
++ * Set value of inv_sel_hsic field from the GLPMFG register.
++ */
++extern void dwc_otg_set_inv_sel_hsic(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/*
++ * Some functions for accessing registers
++ */
++
++/**
++ *  GOTGCTL register
++ */
++extern uint32_t dwc_otg_get_gotgctl(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_gotgctl(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GUSBCFG register
++ */
++extern uint32_t dwc_otg_get_gusbcfg(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_gusbcfg(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GRXFSIZ register
++ */
++extern uint32_t dwc_otg_get_grxfsiz(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_grxfsiz(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GNPTXFSIZ register
++ */
++extern uint32_t dwc_otg_get_gnptxfsiz(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_gnptxfsiz(dwc_otg_core_if_t * core_if, uint32_t val);
++
++extern uint32_t dwc_otg_get_gpvndctl(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_gpvndctl(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GGPIO register
++ */
++extern uint32_t dwc_otg_get_ggpio(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_ggpio(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GUID register
++ */
++extern uint32_t dwc_otg_get_guid(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_guid(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * HPRT0 register
++ */
++extern uint32_t dwc_otg_get_hprt0(dwc_otg_core_if_t * core_if);
++extern void dwc_otg_set_hprt0(dwc_otg_core_if_t * core_if, uint32_t val);
++
++/**
++ * GHPTXFSIZE
++ */
++extern uint32_t dwc_otg_get_hptxfsiz(dwc_otg_core_if_t * core_if);
++
++/** @} */
++
++#endif				/* __DWC_CORE_IF_H__ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_dbg.h
+@@ -0,0 +1,117 @@
++/* ==========================================================================
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#ifndef __DWC_OTG_DBG_H__
++#define __DWC_OTG_DBG_H__
++
++/** @file
++ * This file defines debug levels.
++ * Debugging support vanishes in non-debug builds.
++ */
++
++/**
++ * The Debug Level bit-mask variable.
++ */
++extern uint32_t g_dbg_lvl;
++/**
++ * Set the Debug Level variable.
++ */
++static inline uint32_t SET_DEBUG_LEVEL(const uint32_t new)
++{
++	uint32_t old = g_dbg_lvl;
++	g_dbg_lvl = new;
++	return old;
++}
++
++#define DBG_USER	(0x1)
++/** When debug level has the DBG_CIL bit set, display CIL Debug messages. */
++#define DBG_CIL		(0x2)
++/** When debug level has the DBG_CILV bit set, display CIL Verbose debug
++ * messages */
++#define DBG_CILV	(0x20)
++/**  When debug level has the DBG_PCD bit set, display PCD (Device) debug
++ *  messages */
++#define DBG_PCD		(0x4)
++/** When debug level has the DBG_PCDV set, display PCD (Device) Verbose debug
++ * messages */
++#define DBG_PCDV	(0x40)
++/** When debug level has the DBG_HCD bit set, display Host debug messages */
++#define DBG_HCD		(0x8)
++/** When debug level has the DBG_HCDV bit set, display Verbose Host debug
++ * messages */
++#define DBG_HCDV	(0x80)
++/** When debug level has the DBG_HCD_URB bit set, display enqueued URBs in host
++ *  mode. */
++#define DBG_HCD_URB	(0x800)
++/** When debug level has the DBG_HCDI bit set, display host interrupt
++ *  messages. */
++#define DBG_HCDI	(0x1000)
++
++/** When debug level has any bit set, display debug messages */
++#define DBG_ANY		(0xFF)
++
++/** All debug messages off */
++#define DBG_OFF		0
++
++/** Prefix string for DWC_DEBUG print macros. */
++#define USB_DWC "DWC_otg: "
++
++/**
++ * Print a debug message when the Global debug level variable contains
++ * the bit defined in <code>lvl</code>.
++ *
++ * @param[in] lvl - Debug level, use one of the DBG_ constants above.
++ * @param[in] x - like printf
++ *
++ *    Example:<p>
++ * <code>
++ *      DWC_DEBUGPL( DBG_ANY, "%s(%p)\n", __func__, _reg_base_addr);
++ * </code>
++ * <br>
++ * results in:<br>
++ * <code>
++ * usb-DWC_otg: dwc_otg_cil_init(ca867000)
++ * </code>
++ */
++#ifdef DEBUG
++
++# define DWC_DEBUGPL(lvl, x...) do{ if ((lvl)&g_dbg_lvl)__DWC_DEBUG(USB_DWC x ); }while(0)
++# define DWC_DEBUGP(x...)	DWC_DEBUGPL(DBG_ANY, x )
++
++# define CHK_DEBUG_LEVEL(level) ((level) & g_dbg_lvl)
++
++#else
++
++# define DWC_DEBUGPL(lvl, x...) do{}while(0)
++# define DWC_DEBUGP(x...)
++
++# define CHK_DEBUG_LEVEL(level) (0)
++
++#endif /*DEBUG*/
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
+@@ -0,0 +1,1772 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.c $
++ * $Revision: #92 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++/** @file
++ * The dwc_otg_driver module provides the initialization and cleanup entry
++ * points for the DWC_otg driver. This module will be dynamically installed
++ * after Linux is booted using the insmod command. When the module is
++ * installed, the dwc_otg_driver_init function is called. When the module is
++ * removed (using rmmod), the dwc_otg_driver_cleanup function is called.
++ *
++ * This module also defines a data structure for the dwc_otg_driver, which is
++ * used in conjunction with the standard ARM lm_device structure. These
++ * structures allow the OTG driver to comply with the standard Linux driver
++ * model in which devices and drivers are registered with a bus driver. This
++ * has the benefit that Linux can expose attributes of the driver and device
++ * in its special sysfs file system. Users can then read or write files in
++ * this file system to perform diagnostics on the driver components or the
++ * device.
++ */
++
++#include "dwc_otg_os_dep.h"
++#include "dwc_os.h"
++#include "dwc_otg_dbg.h"
++#include "dwc_otg_driver.h"
++#include "dwc_otg_attr.h"
++#include "dwc_otg_core_if.h"
++#include "dwc_otg_pcd_if.h"
++#include "dwc_otg_hcd_if.h"
++#include "dwc_otg_fiq_fsm.h"
++
++#define DWC_DRIVER_VERSION	"3.00a 10-AUG-2012"
++#define DWC_DRIVER_DESC		"HS OTG USB Controller driver"
++
++bool microframe_schedule=true;
++
++static const char dwc_driver_name[] = "dwc_otg";
++
++
++extern int pcd_init(
++#ifdef LM_INTERFACE
++			   struct lm_device *_dev
++#elif  defined(PCI_INTERFACE)
++			   struct pci_dev *_dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *dev
++#endif
++    );
++extern int hcd_init(
++#ifdef LM_INTERFACE
++			   struct lm_device *_dev
++#elif  defined(PCI_INTERFACE)
++			   struct pci_dev *_dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *dev
++#endif
++    );
++
++extern int pcd_remove(
++#ifdef LM_INTERFACE
++			     struct lm_device *_dev
++#elif  defined(PCI_INTERFACE)
++			     struct pci_dev *_dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *_dev
++#endif
++    );
++
++extern void hcd_remove(
++#ifdef LM_INTERFACE
++			      struct lm_device *_dev
++#elif  defined(PCI_INTERFACE)
++			      struct pci_dev *_dev
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *_dev
++#endif
++    );
++
++extern void dwc_otg_adp_start(dwc_otg_core_if_t * core_if, uint8_t is_host);
++
++/*-------------------------------------------------------------------------*/
++/* Encapsulate the module parameter settings */
++
++struct dwc_otg_driver_module_params {
++	int32_t opt;
++	int32_t otg_cap;
++	int32_t dma_enable;
++	int32_t dma_desc_enable;
++	int32_t dma_burst_size;
++	int32_t speed;
++	int32_t host_support_fs_ls_low_power;
++	int32_t host_ls_low_power_phy_clk;
++	int32_t enable_dynamic_fifo;
++	int32_t data_fifo_size;
++	int32_t dev_rx_fifo_size;
++	int32_t dev_nperio_tx_fifo_size;
++	uint32_t dev_perio_tx_fifo_size[MAX_PERIO_FIFOS];
++	int32_t host_rx_fifo_size;
++	int32_t host_nperio_tx_fifo_size;
++	int32_t host_perio_tx_fifo_size;
++	int32_t max_transfer_size;
++	int32_t max_packet_count;
++	int32_t host_channels;
++	int32_t dev_endpoints;
++	int32_t phy_type;
++	int32_t phy_utmi_width;
++	int32_t phy_ulpi_ddr;
++	int32_t phy_ulpi_ext_vbus;
++	int32_t i2c_enable;
++	int32_t ulpi_fs_ls;
++	int32_t ts_dline;
++	int32_t en_multiple_tx_fifo;
++	uint32_t dev_tx_fifo_size[MAX_TX_FIFOS];
++	uint32_t thr_ctl;
++	uint32_t tx_thr_length;
++	uint32_t rx_thr_length;
++	int32_t pti_enable;
++	int32_t mpi_enable;
++	int32_t lpm_enable;
++	int32_t ic_usb_cap;
++	int32_t ahb_thr_ratio;
++	int32_t power_down;
++	int32_t reload_ctl;
++	int32_t dev_out_nak;
++	int32_t cont_on_bna;
++	int32_t ahb_single;
++	int32_t otg_ver;
++	int32_t adp_enable;
++};
++
++static struct dwc_otg_driver_module_params dwc_otg_module_params = {
++	.opt = -1,
++	.otg_cap = -1,
++	.dma_enable = -1,
++	.dma_desc_enable = -1,
++	.dma_burst_size = -1,
++	.speed = -1,
++	.host_support_fs_ls_low_power = -1,
++	.host_ls_low_power_phy_clk = -1,
++	.enable_dynamic_fifo = -1,
++	.data_fifo_size = -1,
++	.dev_rx_fifo_size = -1,
++	.dev_nperio_tx_fifo_size = -1,
++	.dev_perio_tx_fifo_size = {
++				   /* dev_perio_tx_fifo_size_1 */
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1,
++				   -1
++				   /* 15 */
++				   },
++	.host_rx_fifo_size = -1,
++	.host_nperio_tx_fifo_size = -1,
++	.host_perio_tx_fifo_size = -1,
++	.max_transfer_size = -1,
++	.max_packet_count = -1,
++	.host_channels = -1,
++	.dev_endpoints = -1,
++	.phy_type = -1,
++	.phy_utmi_width = -1,
++	.phy_ulpi_ddr = -1,
++	.phy_ulpi_ext_vbus = -1,
++	.i2c_enable = -1,
++	.ulpi_fs_ls = -1,
++	.ts_dline = -1,
++	.en_multiple_tx_fifo = -1,
++	.dev_tx_fifo_size = {
++			     /* dev_tx_fifo_size */
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1,
++			     -1
++			     /* 15 */
++			     },
++	.thr_ctl = -1,
++	.tx_thr_length = -1,
++	.rx_thr_length = -1,
++	.pti_enable = -1,
++	.mpi_enable = -1,
++	.lpm_enable = 0,
++	.ic_usb_cap = -1,
++	.ahb_thr_ratio = -1,
++	.power_down = -1,
++	.reload_ctl = -1,
++	.dev_out_nak = -1,
++	.cont_on_bna = -1,
++	.ahb_single = -1,
++	.otg_ver = -1,
++	.adp_enable = -1,
++};
++
++//Global variable to switch the fiq fix on or off
++bool fiq_enable = 1;
++// Global variable to enable the split transaction fix
++bool fiq_fsm_enable = true;
++//Bulk split-transaction NAK holdoff in microframes
++uint16_t nak_holdoff = 8;
++
++//Force host mode during CIL re-init
++bool cil_force_host = true;
++
++unsigned short fiq_fsm_mask = 0x0F;
++
++unsigned short int_ep_interval_min = 0;
++/**
++ * This function shows the Driver Version.
++ */
++static ssize_t version_show(struct device_driver *dev, char *buf)
++{
++	return snprintf(buf, sizeof(DWC_DRIVER_VERSION) + 2, "%s\n",
++			DWC_DRIVER_VERSION);
++}
++
++static DRIVER_ATTR_RO(version);
++
++/**
++ * Global Debug Level Mask.
++ */
++uint32_t g_dbg_lvl = 0;		/* OFF */
++
++/**
++ * This function shows the driver Debug Level.
++ */
++static ssize_t debuglevel_show(struct device_driver *drv, char *buf)
++{
++	return sprintf(buf, "0x%0x\n", g_dbg_lvl);
++}
++
++/**
++ * This function stores the driver Debug Level.
++ */
++static ssize_t debuglevel_store(struct device_driver *drv, const char *buf,
++			       size_t count)
++{
++	g_dbg_lvl = simple_strtoul(buf, NULL, 16);
++	return count;
++}
++
++static DRIVER_ATTR_RW(debuglevel);
++
++/**
++ * This function is called during module intialization
++ * to pass module parameters to the DWC_OTG CORE.
++ */
++static int set_parameters(dwc_otg_core_if_t * core_if)
++{
++	int retval = 0;
++	int i;
++
++	if (dwc_otg_module_params.otg_cap != -1) {
++		retval +=
++		    dwc_otg_set_param_otg_cap(core_if,
++					      dwc_otg_module_params.otg_cap);
++	}
++	if (dwc_otg_module_params.dma_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_dma_enable(core_if,
++						 dwc_otg_module_params.
++						 dma_enable);
++	}
++	if (dwc_otg_module_params.dma_desc_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_dma_desc_enable(core_if,
++						      dwc_otg_module_params.
++						      dma_desc_enable);
++	}
++	if (dwc_otg_module_params.opt != -1) {
++		retval +=
++		    dwc_otg_set_param_opt(core_if, dwc_otg_module_params.opt);
++	}
++	if (dwc_otg_module_params.dma_burst_size != -1) {
++		retval +=
++		    dwc_otg_set_param_dma_burst_size(core_if,
++						     dwc_otg_module_params.
++						     dma_burst_size);
++	}
++	if (dwc_otg_module_params.host_support_fs_ls_low_power != -1) {
++		retval +=
++		    dwc_otg_set_param_host_support_fs_ls_low_power(core_if,
++								   dwc_otg_module_params.
++								   host_support_fs_ls_low_power);
++	}
++	if (dwc_otg_module_params.enable_dynamic_fifo != -1) {
++		retval +=
++		    dwc_otg_set_param_enable_dynamic_fifo(core_if,
++							  dwc_otg_module_params.
++							  enable_dynamic_fifo);
++	}
++	if (dwc_otg_module_params.data_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_data_fifo_size(core_if,
++						     dwc_otg_module_params.
++						     data_fifo_size);
++	}
++	if (dwc_otg_module_params.dev_rx_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_dev_rx_fifo_size(core_if,
++						       dwc_otg_module_params.
++						       dev_rx_fifo_size);
++	}
++	if (dwc_otg_module_params.dev_nperio_tx_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_dev_nperio_tx_fifo_size(core_if,
++							      dwc_otg_module_params.
++							      dev_nperio_tx_fifo_size);
++	}
++	if (dwc_otg_module_params.host_rx_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_host_rx_fifo_size(core_if,
++							dwc_otg_module_params.host_rx_fifo_size);
++	}
++	if (dwc_otg_module_params.host_nperio_tx_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_host_nperio_tx_fifo_size(core_if,
++							       dwc_otg_module_params.
++							       host_nperio_tx_fifo_size);
++	}
++	if (dwc_otg_module_params.host_perio_tx_fifo_size != -1) {
++		retval +=
++		    dwc_otg_set_param_host_perio_tx_fifo_size(core_if,
++							      dwc_otg_module_params.
++							      host_perio_tx_fifo_size);
++	}
++	if (dwc_otg_module_params.max_transfer_size != -1) {
++		retval +=
++		    dwc_otg_set_param_max_transfer_size(core_if,
++							dwc_otg_module_params.
++							max_transfer_size);
++	}
++	if (dwc_otg_module_params.max_packet_count != -1) {
++		retval +=
++		    dwc_otg_set_param_max_packet_count(core_if,
++						       dwc_otg_module_params.
++						       max_packet_count);
++	}
++	if (dwc_otg_module_params.host_channels != -1) {
++		retval +=
++		    dwc_otg_set_param_host_channels(core_if,
++						    dwc_otg_module_params.
++						    host_channels);
++	}
++	if (dwc_otg_module_params.dev_endpoints != -1) {
++		retval +=
++		    dwc_otg_set_param_dev_endpoints(core_if,
++						    dwc_otg_module_params.
++						    dev_endpoints);
++	}
++	if (dwc_otg_module_params.phy_type != -1) {
++		retval +=
++		    dwc_otg_set_param_phy_type(core_if,
++					       dwc_otg_module_params.phy_type);
++	}
++	if (dwc_otg_module_params.speed != -1) {
++		retval +=
++		    dwc_otg_set_param_speed(core_if,
++					    dwc_otg_module_params.speed);
++	}
++	if (dwc_otg_module_params.host_ls_low_power_phy_clk != -1) {
++		retval +=
++		    dwc_otg_set_param_host_ls_low_power_phy_clk(core_if,
++								dwc_otg_module_params.
++								host_ls_low_power_phy_clk);
++	}
++	if (dwc_otg_module_params.phy_ulpi_ddr != -1) {
++		retval +=
++		    dwc_otg_set_param_phy_ulpi_ddr(core_if,
++						   dwc_otg_module_params.
++						   phy_ulpi_ddr);
++	}
++	if (dwc_otg_module_params.phy_ulpi_ext_vbus != -1) {
++		retval +=
++		    dwc_otg_set_param_phy_ulpi_ext_vbus(core_if,
++							dwc_otg_module_params.
++							phy_ulpi_ext_vbus);
++	}
++	if (dwc_otg_module_params.phy_utmi_width != -1) {
++		retval +=
++		    dwc_otg_set_param_phy_utmi_width(core_if,
++						     dwc_otg_module_params.
++						     phy_utmi_width);
++	}
++	if (dwc_otg_module_params.ulpi_fs_ls != -1) {
++		retval +=
++		    dwc_otg_set_param_ulpi_fs_ls(core_if,
++						 dwc_otg_module_params.ulpi_fs_ls);
++	}
++	if (dwc_otg_module_params.ts_dline != -1) {
++		retval +=
++		    dwc_otg_set_param_ts_dline(core_if,
++					       dwc_otg_module_params.ts_dline);
++	}
++	if (dwc_otg_module_params.i2c_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_i2c_enable(core_if,
++						 dwc_otg_module_params.
++						 i2c_enable);
++	}
++	if (dwc_otg_module_params.en_multiple_tx_fifo != -1) {
++		retval +=
++		    dwc_otg_set_param_en_multiple_tx_fifo(core_if,
++							  dwc_otg_module_params.
++							  en_multiple_tx_fifo);
++	}
++	for (i = 0; i < 15; i++) {
++		if (dwc_otg_module_params.dev_perio_tx_fifo_size[i] != -1) {
++			retval +=
++			    dwc_otg_set_param_dev_perio_tx_fifo_size(core_if,
++								     dwc_otg_module_params.
++								     dev_perio_tx_fifo_size
++								     [i], i);
++		}
++	}
++
++	for (i = 0; i < 15; i++) {
++		if (dwc_otg_module_params.dev_tx_fifo_size[i] != -1) {
++			retval += dwc_otg_set_param_dev_tx_fifo_size(core_if,
++								     dwc_otg_module_params.
++								     dev_tx_fifo_size
++								     [i], i);
++		}
++	}
++	if (dwc_otg_module_params.thr_ctl != -1) {
++		retval +=
++		    dwc_otg_set_param_thr_ctl(core_if,
++					      dwc_otg_module_params.thr_ctl);
++	}
++	if (dwc_otg_module_params.mpi_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_mpi_enable(core_if,
++						 dwc_otg_module_params.
++						 mpi_enable);
++	}
++	if (dwc_otg_module_params.pti_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_pti_enable(core_if,
++						 dwc_otg_module_params.
++						 pti_enable);
++	}
++	if (dwc_otg_module_params.lpm_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_lpm_enable(core_if,
++						 dwc_otg_module_params.
++						 lpm_enable);
++	}
++	if (dwc_otg_module_params.ic_usb_cap != -1) {
++		retval +=
++		    dwc_otg_set_param_ic_usb_cap(core_if,
++						 dwc_otg_module_params.
++						 ic_usb_cap);
++	}
++	if (dwc_otg_module_params.tx_thr_length != -1) {
++		retval +=
++		    dwc_otg_set_param_tx_thr_length(core_if,
++						    dwc_otg_module_params.tx_thr_length);
++	}
++	if (dwc_otg_module_params.rx_thr_length != -1) {
++		retval +=
++		    dwc_otg_set_param_rx_thr_length(core_if,
++						    dwc_otg_module_params.
++						    rx_thr_length);
++	}
++	if (dwc_otg_module_params.ahb_thr_ratio != -1) {
++		retval +=
++		    dwc_otg_set_param_ahb_thr_ratio(core_if,
++						    dwc_otg_module_params.ahb_thr_ratio);
++	}
++	if (dwc_otg_module_params.power_down != -1) {
++		retval +=
++		    dwc_otg_set_param_power_down(core_if,
++						 dwc_otg_module_params.power_down);
++	}
++	if (dwc_otg_module_params.reload_ctl != -1) {
++		retval +=
++		    dwc_otg_set_param_reload_ctl(core_if,
++						 dwc_otg_module_params.reload_ctl);
++	}
++
++	if (dwc_otg_module_params.dev_out_nak != -1) {
++		retval +=
++			dwc_otg_set_param_dev_out_nak(core_if,
++			dwc_otg_module_params.dev_out_nak);
++	}
++
++	if (dwc_otg_module_params.cont_on_bna != -1) {
++		retval +=
++			dwc_otg_set_param_cont_on_bna(core_if,
++			dwc_otg_module_params.cont_on_bna);
++	}
++
++	if (dwc_otg_module_params.ahb_single != -1) {
++		retval +=
++			dwc_otg_set_param_ahb_single(core_if,
++			dwc_otg_module_params.ahb_single);
++	}
++
++	if (dwc_otg_module_params.otg_ver != -1) {
++		retval +=
++		    dwc_otg_set_param_otg_ver(core_if,
++					      dwc_otg_module_params.otg_ver);
++	}
++	if (dwc_otg_module_params.adp_enable != -1) {
++		retval +=
++		    dwc_otg_set_param_adp_enable(core_if,
++						 dwc_otg_module_params.
++						 adp_enable);
++	}
++	return retval;
++}
++
++/**
++ * This function is the top level interrupt handler for the Common
++ * (Device and host modes) interrupts.
++ */
++static irqreturn_t dwc_otg_common_irq(int irq, void *dev)
++{
++	int32_t retval = IRQ_NONE;
++
++	retval = dwc_otg_handle_common_intr(dev);
++	if (retval != 0) {
++		S3C2410X_CLEAR_EINTPEND();
++	}
++	return IRQ_RETVAL(retval);
++}
++
++/**
++ * This function is called when a lm_device is unregistered with the
++ * dwc_otg_driver. This happens, for example, when the rmmod command is
++ * executed. The device may or may not be electrically present. If it is
++ * present, the driver stops device processing. Any resources used on behalf
++ * of this device are freed.
++ *
++ * @param _dev
++ */
++#ifdef LM_INTERFACE
++#define REM_RETVAL(n)
++static void dwc_otg_driver_remove(	 struct lm_device *_dev )
++{       dwc_otg_device_t *otg_dev = lm_get_drvdata(_dev);
++#elif  defined(PCI_INTERFACE)
++#define REM_RETVAL(n)
++static void dwc_otg_driver_remove(	 struct pci_dev *_dev )
++{	dwc_otg_device_t *otg_dev = pci_get_drvdata(_dev);
++#elif  defined(PLATFORM_INTERFACE)
++#define REM_RETVAL(n) n
++static int dwc_otg_driver_remove(        struct platform_device *_dev )
++{       dwc_otg_device_t *otg_dev = platform_get_drvdata(_dev);
++#endif
++
++	DWC_DEBUGPL(DBG_ANY, "%s(%p) otg_dev %p\n", __func__, _dev, otg_dev);
++
++	if (!otg_dev) {
++		/* Memory allocation for the dwc_otg_device failed. */
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__);
++                return REM_RETVAL(-ENOMEM);
++	}
++#ifndef DWC_DEVICE_ONLY
++	if (otg_dev->hcd) {
++		hcd_remove(_dev);
++	} else {
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__);
++                return REM_RETVAL(-EINVAL);
++	}
++#endif
++
++#ifndef DWC_HOST_ONLY
++	if (otg_dev->pcd) {
++		pcd_remove(_dev);
++	} else {
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->pcd NULL!\n", __func__);
++                return REM_RETVAL(-EINVAL);
++	}
++#endif
++	/*
++	 * Free the IRQ
++	 */
++	if (otg_dev->common_irq_installed) {
++		free_irq(otg_dev->os_dep.irq_num, otg_dev);
++        } else {
++		DWC_DEBUGPL(DBG_ANY, "%s: There is no installed irq!\n", __func__);
++		return REM_RETVAL(-ENXIO);
++	}
++
++	if (otg_dev->core_if) {
++		dwc_otg_cil_remove(otg_dev->core_if);
++	} else {
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->core_if NULL!\n", __func__);
++		return REM_RETVAL(-ENXIO);
++	}
++
++	/*
++	 * Remove the device attributes
++	 */
++	dwc_otg_attr_remove(_dev);
++
++	/*
++	 * Return the memory.
++	 */
++	if (otg_dev->os_dep.base) {
++		iounmap(otg_dev->os_dep.base);
++	}
++	DWC_FREE(otg_dev);
++
++	/*
++	 * Clear the drvdata pointer.
++	 */
++#ifdef LM_INTERFACE
++	lm_set_drvdata(_dev, 0);
++#elif defined(PCI_INTERFACE)
++        release_mem_region(otg_dev->os_dep.rsrc_start,
++                           otg_dev->os_dep.rsrc_len);
++	pci_set_drvdata(_dev, 0);
++#elif  defined(PLATFORM_INTERFACE)
++        platform_set_drvdata(_dev, 0);
++#endif
++        return REM_RETVAL(0);
++}
++
++/**
++ * This function is called when an lm_device is bound to a
++ * dwc_otg_driver. It creates the driver components required to
++ * control the device (CIL, HCD, and PCD) and it initializes the
++ * device. The driver components are stored in a dwc_otg_device
++ * structure. A reference to the dwc_otg_device is saved in the
++ * lm_device. This allows the driver to access the dwc_otg_device
++ * structure on subsequent calls to driver methods for this device.
++ *
++ * @param _dev Bus device
++ */
++static int dwc_otg_driver_probe(
++#ifdef LM_INTERFACE
++				       struct lm_device *_dev
++#elif defined(PCI_INTERFACE)
++				       struct pci_dev *_dev,
++				       const struct pci_device_id *id
++#elif  defined(PLATFORM_INTERFACE)
++                                       struct platform_device *_dev
++#endif
++    )
++{
++	int retval = 0;
++	dwc_otg_device_t *dwc_otg_device;
++        int devirq;
++
++	dev_dbg(&_dev->dev, "dwc_otg_driver_probe(%p)\n", _dev);
++#ifdef LM_INTERFACE
++	dev_dbg(&_dev->dev, "start=0x%08x\n", (unsigned)_dev->resource.start);
++#elif defined(PCI_INTERFACE)
++	if (!id) {
++		DWC_ERROR("Invalid pci_device_id %p", id);
++		return -EINVAL;
++	}
++
++	if (!_dev || (pci_enable_device(_dev) < 0)) {
++		DWC_ERROR("Invalid pci_device %p", _dev);
++		return -ENODEV;
++	}
++	dev_dbg(&_dev->dev, "start=0x%08x\n", (unsigned)pci_resource_start(_dev,0));
++	/* other stuff needed as well? */
++
++#elif  defined(PLATFORM_INTERFACE)
++	dev_dbg(&_dev->dev, "start=0x%08x (len 0x%x)\n",
++                (unsigned)_dev->resource->start,
++                (unsigned)(_dev->resource->end - _dev->resource->start));
++#endif
++
++	dwc_otg_device = DWC_ALLOC(sizeof(dwc_otg_device_t));
++
++	if (!dwc_otg_device) {
++		dev_err(&_dev->dev, "kmalloc of dwc_otg_device failed\n");
++		return -ENOMEM;
++	}
++
++	memset(dwc_otg_device, 0, sizeof(*dwc_otg_device));
++	dwc_otg_device->os_dep.reg_offset = 0xFFFFFFFF;
++	dwc_otg_device->os_dep.platformdev = _dev;
++
++	/*
++	 * Map the DWC_otg Core memory into virtual address space.
++	 */
++#ifdef LM_INTERFACE
++	dwc_otg_device->os_dep.base = ioremap(_dev->resource.start, SZ_256K);
++
++	if (!dwc_otg_device->os_dep.base) {
++		dev_err(&_dev->dev, "ioremap() failed\n");
++		DWC_FREE(dwc_otg_device);
++		return -ENOMEM;
++	}
++	dev_dbg(&_dev->dev, "base=0x%08x\n",
++		(unsigned)dwc_otg_device->os_dep.base);
++#elif defined(PCI_INTERFACE)
++	_dev->current_state = PCI_D0;
++	_dev->dev.power.power_state = PMSG_ON;
++
++	if (!_dev->irq) {
++		DWC_ERROR("Found HC with no IRQ. Check BIOS/PCI %s setup!",
++			  pci_name(_dev));
++		iounmap(dwc_otg_device->os_dep.base);
++		DWC_FREE(dwc_otg_device);
++		return -ENODEV;
++	}
++
++	dwc_otg_device->os_dep.rsrc_start = pci_resource_start(_dev, 0);
++	dwc_otg_device->os_dep.rsrc_len = pci_resource_len(_dev, 0);
++	DWC_DEBUGPL(DBG_ANY, "PCI resource: start=%08x, len=%08x\n",
++		    (unsigned)dwc_otg_device->os_dep.rsrc_start,
++		    (unsigned)dwc_otg_device->os_dep.rsrc_len);
++	if (!request_mem_region
++	    (dwc_otg_device->os_dep.rsrc_start, dwc_otg_device->os_dep.rsrc_len,
++	     "dwc_otg")) {
++		dev_dbg(&_dev->dev, "error requesting memory\n");
++		iounmap(dwc_otg_device->os_dep.base);
++		DWC_FREE(dwc_otg_device);
++		return -EFAULT;
++	}
++
++	dwc_otg_device->os_dep.base =
++	    ioremap(dwc_otg_device->os_dep.rsrc_start,
++			    dwc_otg_device->os_dep.rsrc_len);
++	if (dwc_otg_device->os_dep.base == NULL) {
++		dev_dbg(&_dev->dev, "error mapping memory\n");
++		release_mem_region(dwc_otg_device->os_dep.rsrc_start,
++				   dwc_otg_device->os_dep.rsrc_len);
++		iounmap(dwc_otg_device->os_dep.base);
++		DWC_FREE(dwc_otg_device);
++		return -EFAULT;
++	}
++	dev_dbg(&_dev->dev, "base=0x%p (before adjust) \n",
++		dwc_otg_device->os_dep.base);
++	dwc_otg_device->os_dep.base = (char *)dwc_otg_device->os_dep.base;
++	dev_dbg(&_dev->dev, "base=0x%p (after adjust) \n",
++		dwc_otg_device->os_dep.base);
++	dev_dbg(&_dev->dev, "%s: mapped PA 0x%x to VA 0x%p\n", __func__,
++		(unsigned)dwc_otg_device->os_dep.rsrc_start,
++		dwc_otg_device->os_dep.base);
++
++	pci_set_master(_dev);
++	pci_set_drvdata(_dev, dwc_otg_device);
++#elif defined(PLATFORM_INTERFACE)
++        DWC_DEBUGPL(DBG_ANY,"Platform resource: start=%08x, len=%08x\n",
++                    _dev->resource->start,
++                    _dev->resource->end - _dev->resource->start + 1);
++#if 1
++        if (!request_mem_region(_dev->resource[0].start,
++                                _dev->resource[0].end - _dev->resource[0].start + 1,
++                                "dwc_otg")) {
++          dev_dbg(&_dev->dev, "error reserving mapped memory\n");
++          retval = -EFAULT;
++          goto fail;
++        }
++
++	dwc_otg_device->os_dep.base = ioremap(_dev->resource[0].start,
++                                                      _dev->resource[0].end -
++                                                      _dev->resource[0].start+1);
++	if (fiq_enable)
++	{
++		if (!request_mem_region(_dev->resource[1].start,
++	                                _dev->resource[1].end - _dev->resource[1].start + 1,
++	                                "dwc_otg")) {
++			dev_dbg(&_dev->dev, "error reserving mapped memory\n");
++			retval = -EFAULT;
++			goto fail;
++		}
++
++		dwc_otg_device->os_dep.mphi_base = ioremap(_dev->resource[1].start,
++							    _dev->resource[1].end -
++							    _dev->resource[1].start + 1);
++		dwc_otg_device->os_dep.use_swirq = (_dev->resource[1].end - _dev->resource[1].start) == 0x200;
++	}
++
++#else
++        {
++                struct map_desc desc = {
++                    .virtual = IO_ADDRESS((unsigned)_dev->resource->start),
++                    .pfn     = __phys_to_pfn((unsigned)_dev->resource->start),
++                    .length  = SZ_128K,
++                    .type    = MT_DEVICE
++                };
++                iotable_init(&desc, 1);
++                dwc_otg_device->os_dep.base = (void *)desc.virtual;
++        }
++#endif
++	if (!dwc_otg_device->os_dep.base) {
++		dev_err(&_dev->dev, "ioremap() failed\n");
++		retval = -ENOMEM;
++		goto fail;
++	}
++#endif
++
++	/*
++	 * Initialize driver data to point to the global DWC_otg
++	 * Device structure.
++	 */
++#ifdef LM_INTERFACE
++	lm_set_drvdata(_dev, dwc_otg_device);
++#elif defined(PLATFORM_INTERFACE)
++	platform_set_drvdata(_dev, dwc_otg_device);
++#endif
++	dev_dbg(&_dev->dev, "dwc_otg_device=0x%p\n", dwc_otg_device);
++
++	dwc_otg_device->core_if = dwc_otg_cil_init(dwc_otg_device->os_dep.base);
++        DWC_DEBUGPL(DBG_HCDV, "probe of device %p given core_if %p\n",
++                    dwc_otg_device, dwc_otg_device->core_if);//GRAYG
++
++	if (!dwc_otg_device->core_if) {
++		dev_err(&_dev->dev, "CIL initialization failed!\n");
++		retval = -ENOMEM;
++		goto fail;
++	}
++
++	dev_dbg(&_dev->dev, "Calling get_gsnpsid\n");
++	/*
++	 * Attempt to ensure this device is really a DWC_otg Controller.
++	 * Read and verify the SNPSID register contents. The value should be
++	 * 0x45F42XXX or 0x45F42XXX, which corresponds to either "OT2" or "OTG3",
++	 * as in "OTG version 2.XX" or "OTG version 3.XX".
++	 */
++
++	if (((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) !=	0x4F542000) &&
++		((dwc_otg_get_gsnpsid(dwc_otg_device->core_if) & 0xFFFFF000) != 0x4F543000)) {
++		dev_err(&_dev->dev, "Bad value for SNPSID: 0x%08x\n",
++			dwc_otg_get_gsnpsid(dwc_otg_device->core_if));
++		retval = -EINVAL;
++		goto fail;
++	}
++
++	/*
++	 * Validate parameter values.
++	 */
++	dev_dbg(&_dev->dev, "Calling set_parameters\n");
++	if (set_parameters(dwc_otg_device->core_if)) {
++		retval = -EINVAL;
++		goto fail;
++	}
++
++	/*
++	 * Create Device Attributes in sysfs
++	 */
++	dev_dbg(&_dev->dev, "Calling attr_create\n");
++	dwc_otg_attr_create(_dev);
++
++	/*
++	 * Disable the global interrupt until all the interrupt
++	 * handlers are installed.
++	 */
++	dev_dbg(&_dev->dev, "Calling disable_global_interrupts\n");
++	dwc_otg_disable_global_interrupts(dwc_otg_device->core_if);
++
++	/*
++	 * Install the interrupt handler for the common interrupts before
++	 * enabling common interrupts in core_init below.
++	 */
++
++#if defined(PLATFORM_INTERFACE)
++	devirq = platform_get_irq_byname(_dev, fiq_enable ? "soft" : "usb");
++	if (devirq < 0)
++	    devirq = platform_get_irq(_dev, fiq_enable ? 0 : 1);
++#else
++	devirq = _dev->irq;
++#endif
++	DWC_DEBUGPL(DBG_CIL, "registering (common) handler for irq%d\n",
++		    devirq);
++	dev_dbg(&_dev->dev, "Calling request_irq(%d)\n", devirq);
++	retval = request_irq(devirq, dwc_otg_common_irq,
++                             IRQF_SHARED,
++                             "dwc_otg", dwc_otg_device);
++	if (retval) {
++		DWC_ERROR("request of irq%d failed\n", devirq);
++		retval = -EBUSY;
++		goto fail;
++	} else {
++		dwc_otg_device->common_irq_installed = 1;
++	}
++	dwc_otg_device->os_dep.irq_num = devirq;
++	dwc_otg_device->os_dep.fiq_num = -EINVAL;
++	if (fiq_enable) {
++		int devfiq = platform_get_irq_byname(_dev, "usb");
++		if (devfiq < 0)
++			devfiq = platform_get_irq(_dev, 1);
++		dwc_otg_device->os_dep.fiq_num = devfiq;
++	}
++
++#ifndef IRQF_TRIGGER_LOW
++#if defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE)
++	dev_dbg(&_dev->dev, "Calling set_irq_type\n");
++	set_irq_type(devirq,
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
++                     IRQT_LOW
++#else
++                     IRQ_TYPE_LEVEL_LOW
++#endif
++                    );
++#endif
++#endif /*IRQF_TRIGGER_LOW*/
++
++	/*
++	 * Initialize the DWC_otg core.
++	 */
++	dev_dbg(&_dev->dev, "Calling dwc_otg_core_init\n");
++	dwc_otg_core_init(dwc_otg_device->core_if);
++
++#ifndef DWC_HOST_ONLY
++	/*
++	 * Initialize the PCD
++	 */
++	dev_dbg(&_dev->dev, "Calling pcd_init\n");
++	retval = pcd_init(_dev);
++	if (retval != 0) {
++		DWC_ERROR("pcd_init failed\n");
++		dwc_otg_device->pcd = NULL;
++		goto fail;
++	}
++#endif
++#ifndef DWC_DEVICE_ONLY
++	/*
++	 * Initialize the HCD
++	 */
++	dev_dbg(&_dev->dev, "Calling hcd_init\n");
++	retval = hcd_init(_dev);
++	if (retval != 0) {
++		DWC_ERROR("hcd_init failed\n");
++		dwc_otg_device->hcd = NULL;
++		goto fail;
++	}
++#endif
++        /* Recover from drvdata having been overwritten by hcd_init() */
++#ifdef LM_INTERFACE
++	lm_set_drvdata(_dev, dwc_otg_device);
++#elif defined(PLATFORM_INTERFACE)
++	platform_set_drvdata(_dev, dwc_otg_device);
++#elif defined(PCI_INTERFACE)
++	pci_set_drvdata(_dev, dwc_otg_device);
++	dwc_otg_device->os_dep.pcidev = _dev;
++#endif
++
++	/*
++	 * Enable the global interrupt after all the interrupt
++	 * handlers are installed if there is no ADP support else
++	 * perform initial actions required for Internal ADP logic.
++	 */
++	if (!dwc_otg_get_param_adp_enable(dwc_otg_device->core_if)) {
++	        dev_dbg(&_dev->dev, "Calling enable_global_interrupts\n");
++		dwc_otg_enable_global_interrupts(dwc_otg_device->core_if);
++	        dev_dbg(&_dev->dev, "Done\n");
++	} else
++		dwc_otg_adp_start(dwc_otg_device->core_if,
++							dwc_otg_is_host_mode(dwc_otg_device->core_if));
++
++	return 0;
++
++fail:
++	dwc_otg_driver_remove(_dev);
++	return retval;
++}
++
++/**
++ * This structure defines the methods to be called by a bus driver
++ * during the lifecycle of a device on that bus. Both drivers and
++ * devices are registered with a bus driver. The bus driver matches
++ * devices to drivers based on information in the device and driver
++ * structures.
++ *
++ * The probe function is called when the bus driver matches a device
++ * to this driver. The remove function is called when a device is
++ * unregistered with the bus driver.
++ */
++#ifdef LM_INTERFACE
++static struct lm_driver dwc_otg_driver = {
++	.drv = {.name = (char *)dwc_driver_name,},
++	.probe = dwc_otg_driver_probe,
++	.remove = dwc_otg_driver_remove,
++        // 'suspend' and 'resume' absent
++};
++#elif defined(PCI_INTERFACE)
++static const struct pci_device_id pci_ids[] = { {
++						 PCI_DEVICE(0x16c3, 0xabcd),
++						 .driver_data =
++						 (unsigned long)0xdeadbeef,
++						 }, { /* end: all zeroes */ }
++};
++
++MODULE_DEVICE_TABLE(pci, pci_ids);
++
++/* pci driver glue; this is a "new style" PCI driver module */
++static struct pci_driver dwc_otg_driver = {
++	.name = "dwc_otg",
++	.id_table = pci_ids,
++
++	.probe = dwc_otg_driver_probe,
++	.remove = dwc_otg_driver_remove,
++
++	.driver = {
++		   .name = (char *)dwc_driver_name,
++		   },
++};
++#elif defined(PLATFORM_INTERFACE)
++static struct platform_device_id platform_ids[] = {
++        {
++              .name = "bcm2708_usb",
++              .driver_data = (kernel_ulong_t) 0xdeadbeef,
++        },
++        { /* end: all zeroes */ }
++};
++MODULE_DEVICE_TABLE(platform, platform_ids);
++
++static const struct of_device_id dwc_otg_of_match_table[] = {
++	{ .compatible = "brcm,bcm2708-usb", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, dwc_otg_of_match_table);
++
++static struct platform_driver dwc_otg_driver = {
++	.driver = {
++		.name = (char *)dwc_driver_name,
++		.of_match_table = dwc_otg_of_match_table,
++		},
++        .id_table = platform_ids,
++
++	.probe = dwc_otg_driver_probe,
++	.remove = dwc_otg_driver_remove,
++        // no 'shutdown', 'suspend', 'resume', 'suspend_late' or 'resume_early'
++};
++#endif
++
++/**
++ * This function is called when the dwc_otg_driver is installed with the
++ * insmod command. It registers the dwc_otg_driver structure with the
++ * appropriate bus driver. This will cause the dwc_otg_driver_probe function
++ * to be called. In addition, the bus driver will automatically expose
++ * attributes defined for the device and driver in the special sysfs file
++ * system.
++ *
++ * @return
++ */
++static int __init dwc_otg_driver_init(void)
++{
++	int retval = 0;
++	int error;
++        struct device_driver *drv;
++
++	if(fiq_fsm_enable && !fiq_enable) {
++		printk(KERN_WARNING "dwc_otg: fiq_fsm_enable was set without fiq_enable! Correcting.\n");
++		fiq_enable = 1;
++	}
++
++	printk(KERN_INFO "%s: version %s (%s bus)\n", dwc_driver_name,
++	       DWC_DRIVER_VERSION,
++#ifdef LM_INTERFACE
++               "logicmodule");
++	retval = lm_driver_register(&dwc_otg_driver);
++        drv = &dwc_otg_driver.drv;
++#elif defined(PCI_INTERFACE)
++               "pci");
++	retval = pci_register_driver(&dwc_otg_driver);
++        drv = &dwc_otg_driver.driver;
++#elif defined(PLATFORM_INTERFACE)
++               "platform");
++	retval = platform_driver_register(&dwc_otg_driver);
++        drv = &dwc_otg_driver.driver;
++#endif
++	if (retval < 0) {
++		printk(KERN_ERR "%s retval=%d\n", __func__, retval);
++		return retval;
++	}
++	printk(KERN_DEBUG "dwc_otg: FIQ %s\n", fiq_enable ? "enabled":"disabled");
++	printk(KERN_DEBUG "dwc_otg: NAK holdoff %s\n", nak_holdoff ? "enabled":"disabled");
++	printk(KERN_DEBUG "dwc_otg: FIQ split-transaction FSM %s\n", fiq_fsm_enable ? "enabled":"disabled");
++
++	error = driver_create_file(drv, &driver_attr_version);
++#ifdef DEBUG
++	error = driver_create_file(drv, &driver_attr_debuglevel);
++#endif
++	return retval;
++}
++
++module_init(dwc_otg_driver_init);
++
++/**
++ * This function is called when the driver is removed from the kernel
++ * with the rmmod command. The driver unregisters itself with its bus
++ * driver.
++ *
++ */
++static void __exit dwc_otg_driver_cleanup(void)
++{
++	printk(KERN_DEBUG "dwc_otg_driver_cleanup()\n");
++
++#ifdef LM_INTERFACE
++	driver_remove_file(&dwc_otg_driver.drv, &driver_attr_debuglevel);
++	driver_remove_file(&dwc_otg_driver.drv, &driver_attr_version);
++	lm_driver_unregister(&dwc_otg_driver);
++#elif defined(PCI_INTERFACE)
++	driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
++	driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version);
++	pci_unregister_driver(&dwc_otg_driver);
++#elif defined(PLATFORM_INTERFACE)
++	driver_remove_file(&dwc_otg_driver.driver, &driver_attr_debuglevel);
++	driver_remove_file(&dwc_otg_driver.driver, &driver_attr_version);
++	platform_driver_unregister(&dwc_otg_driver);
++#endif
++
++	printk(KERN_INFO "%s module removed\n", dwc_driver_name);
++}
++
++module_exit(dwc_otg_driver_cleanup);
++
++MODULE_DESCRIPTION(DWC_DRIVER_DESC);
++MODULE_AUTHOR("Synopsys Inc.");
++MODULE_LICENSE("GPL");
++
++module_param_named(otg_cap, dwc_otg_module_params.otg_cap, int, 0444);
++MODULE_PARM_DESC(otg_cap, "OTG Capabilities 0=HNP&SRP 1=SRP Only 2=None");
++module_param_named(opt, dwc_otg_module_params.opt, int, 0444);
++MODULE_PARM_DESC(opt, "OPT Mode");
++module_param_named(dma_enable, dwc_otg_module_params.dma_enable, int, 0444);
++MODULE_PARM_DESC(dma_enable, "DMA Mode 0=Slave 1=DMA enabled");
++
++module_param_named(dma_desc_enable, dwc_otg_module_params.dma_desc_enable, int,
++		   0444);
++MODULE_PARM_DESC(dma_desc_enable,
++		 "DMA Desc Mode 0=Address DMA 1=DMA Descriptor enabled");
++
++module_param_named(dma_burst_size, dwc_otg_module_params.dma_burst_size, int,
++		   0444);
++MODULE_PARM_DESC(dma_burst_size,
++		 "DMA Burst Size 1, 4, 8, 16, 32, 64, 128, 256");
++module_param_named(speed, dwc_otg_module_params.speed, int, 0444);
++MODULE_PARM_DESC(speed, "Speed 0=High Speed 1=Full Speed");
++module_param_named(host_support_fs_ls_low_power,
++		   dwc_otg_module_params.host_support_fs_ls_low_power, int,
++		   0444);
++MODULE_PARM_DESC(host_support_fs_ls_low_power,
++		 "Support Low Power w/FS or LS 0=Support 1=Don't Support");
++module_param_named(host_ls_low_power_phy_clk,
++		   dwc_otg_module_params.host_ls_low_power_phy_clk, int, 0444);
++MODULE_PARM_DESC(host_ls_low_power_phy_clk,
++		 "Low Speed Low Power Clock 0=48Mhz 1=6Mhz");
++module_param_named(enable_dynamic_fifo,
++		   dwc_otg_module_params.enable_dynamic_fifo, int, 0444);
++MODULE_PARM_DESC(enable_dynamic_fifo, "0=cC Setting 1=Allow Dynamic Sizing");
++module_param_named(data_fifo_size, dwc_otg_module_params.data_fifo_size, int,
++		   0444);
++MODULE_PARM_DESC(data_fifo_size,
++		 "Total number of words in the data FIFO memory 32-32768");
++module_param_named(dev_rx_fifo_size, dwc_otg_module_params.dev_rx_fifo_size,
++		   int, 0444);
++MODULE_PARM_DESC(dev_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
++module_param_named(dev_nperio_tx_fifo_size,
++		   dwc_otg_module_params.dev_nperio_tx_fifo_size, int, 0444);
++MODULE_PARM_DESC(dev_nperio_tx_fifo_size,
++		 "Number of words in the non-periodic Tx FIFO 16-32768");
++module_param_named(dev_perio_tx_fifo_size_1,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[0], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_1,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_2,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[1], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_2,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_3,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[2], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_3,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_4,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[3], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_4,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_5,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[4], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_5,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_6,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[5], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_6,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_7,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[6], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_7,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_8,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[7], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_8,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_9,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[8], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_9,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_10,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[9], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_10,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_11,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[10], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_11,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_12,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[11], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_12,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_13,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[12], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_13,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_14,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[13], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_14,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(dev_perio_tx_fifo_size_15,
++		   dwc_otg_module_params.dev_perio_tx_fifo_size[14], int, 0444);
++MODULE_PARM_DESC(dev_perio_tx_fifo_size_15,
++		 "Number of words in the periodic Tx FIFO 4-768");
++module_param_named(host_rx_fifo_size, dwc_otg_module_params.host_rx_fifo_size,
++		   int, 0444);
++MODULE_PARM_DESC(host_rx_fifo_size, "Number of words in the Rx FIFO 16-32768");
++module_param_named(host_nperio_tx_fifo_size,
++		   dwc_otg_module_params.host_nperio_tx_fifo_size, int, 0444);
++MODULE_PARM_DESC(host_nperio_tx_fifo_size,
++		 "Number of words in the non-periodic Tx FIFO 16-32768");
++module_param_named(host_perio_tx_fifo_size,
++		   dwc_otg_module_params.host_perio_tx_fifo_size, int, 0444);
++MODULE_PARM_DESC(host_perio_tx_fifo_size,
++		 "Number of words in the host periodic Tx FIFO 16-32768");
++module_param_named(max_transfer_size, dwc_otg_module_params.max_transfer_size,
++		   int, 0444);
++/** @todo Set the max to 512K, modify checks */
++MODULE_PARM_DESC(max_transfer_size,
++		 "The maximum transfer size supported in bytes 2047-65535");
++module_param_named(max_packet_count, dwc_otg_module_params.max_packet_count,
++		   int, 0444);
++MODULE_PARM_DESC(max_packet_count,
++		 "The maximum number of packets in a transfer 15-511");
++module_param_named(host_channels, dwc_otg_module_params.host_channels, int,
++		   0444);
++MODULE_PARM_DESC(host_channels,
++		 "The number of host channel registers to use 1-16");
++module_param_named(dev_endpoints, dwc_otg_module_params.dev_endpoints, int,
++		   0444);
++MODULE_PARM_DESC(dev_endpoints,
++		 "The number of endpoints in addition to EP0 available for device mode 1-15");
++module_param_named(phy_type, dwc_otg_module_params.phy_type, int, 0444);
++MODULE_PARM_DESC(phy_type, "0=Reserved 1=UTMI+ 2=ULPI");
++module_param_named(phy_utmi_width, dwc_otg_module_params.phy_utmi_width, int,
++		   0444);
++MODULE_PARM_DESC(phy_utmi_width, "Specifies the UTMI+ Data Width 8 or 16 bits");
++module_param_named(phy_ulpi_ddr, dwc_otg_module_params.phy_ulpi_ddr, int, 0444);
++MODULE_PARM_DESC(phy_ulpi_ddr,
++		 "ULPI at double or single data rate 0=Single 1=Double");
++module_param_named(phy_ulpi_ext_vbus, dwc_otg_module_params.phy_ulpi_ext_vbus,
++		   int, 0444);
++MODULE_PARM_DESC(phy_ulpi_ext_vbus,
++		 "ULPI PHY using internal or external vbus 0=Internal");
++module_param_named(i2c_enable, dwc_otg_module_params.i2c_enable, int, 0444);
++MODULE_PARM_DESC(i2c_enable, "FS PHY Interface");
++module_param_named(ulpi_fs_ls, dwc_otg_module_params.ulpi_fs_ls, int, 0444);
++MODULE_PARM_DESC(ulpi_fs_ls, "ULPI PHY FS/LS mode only");
++module_param_named(ts_dline, dwc_otg_module_params.ts_dline, int, 0444);
++MODULE_PARM_DESC(ts_dline, "Term select Dline pulsing for all PHYs");
++module_param_named(debug, g_dbg_lvl, int, 0444);
++MODULE_PARM_DESC(debug, "");
++
++module_param_named(en_multiple_tx_fifo,
++		   dwc_otg_module_params.en_multiple_tx_fifo, int, 0444);
++MODULE_PARM_DESC(en_multiple_tx_fifo,
++		 "Dedicated Non Periodic Tx FIFOs 0=disabled 1=enabled");
++module_param_named(dev_tx_fifo_size_1,
++		   dwc_otg_module_params.dev_tx_fifo_size[0], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_1, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_2,
++		   dwc_otg_module_params.dev_tx_fifo_size[1], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_2, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_3,
++		   dwc_otg_module_params.dev_tx_fifo_size[2], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_3, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_4,
++		   dwc_otg_module_params.dev_tx_fifo_size[3], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_4, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_5,
++		   dwc_otg_module_params.dev_tx_fifo_size[4], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_5, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_6,
++		   dwc_otg_module_params.dev_tx_fifo_size[5], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_6, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_7,
++		   dwc_otg_module_params.dev_tx_fifo_size[6], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_7, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_8,
++		   dwc_otg_module_params.dev_tx_fifo_size[7], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_8, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_9,
++		   dwc_otg_module_params.dev_tx_fifo_size[8], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_9, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_10,
++		   dwc_otg_module_params.dev_tx_fifo_size[9], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_10, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_11,
++		   dwc_otg_module_params.dev_tx_fifo_size[10], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_11, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_12,
++		   dwc_otg_module_params.dev_tx_fifo_size[11], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_12, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_13,
++		   dwc_otg_module_params.dev_tx_fifo_size[12], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_13, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_14,
++		   dwc_otg_module_params.dev_tx_fifo_size[13], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_14, "Number of words in the Tx FIFO 4-768");
++module_param_named(dev_tx_fifo_size_15,
++		   dwc_otg_module_params.dev_tx_fifo_size[14], int, 0444);
++MODULE_PARM_DESC(dev_tx_fifo_size_15, "Number of words in the Tx FIFO 4-768");
++
++module_param_named(thr_ctl, dwc_otg_module_params.thr_ctl, int, 0444);
++MODULE_PARM_DESC(thr_ctl,
++		 "Thresholding enable flag bit 0 - non ISO Tx thr., 1 - ISO Tx thr., 2 - Rx thr.- bit 0=disabled 1=enabled");
++module_param_named(tx_thr_length, dwc_otg_module_params.tx_thr_length, int,
++		   0444);
++MODULE_PARM_DESC(tx_thr_length, "Tx Threshold length in 32 bit DWORDs");
++module_param_named(rx_thr_length, dwc_otg_module_params.rx_thr_length, int,
++		   0444);
++MODULE_PARM_DESC(rx_thr_length, "Rx Threshold length in 32 bit DWORDs");
++
++module_param_named(pti_enable, dwc_otg_module_params.pti_enable, int, 0444);
++module_param_named(mpi_enable, dwc_otg_module_params.mpi_enable, int, 0444);
++module_param_named(lpm_enable, dwc_otg_module_params.lpm_enable, int, 0444);
++MODULE_PARM_DESC(lpm_enable, "LPM Enable 0=LPM Disabled 1=LPM Enabled");
++module_param_named(ic_usb_cap, dwc_otg_module_params.ic_usb_cap, int, 0444);
++MODULE_PARM_DESC(ic_usb_cap,
++		 "IC_USB Capability 0=IC_USB Disabled 1=IC_USB Enabled");
++module_param_named(ahb_thr_ratio, dwc_otg_module_params.ahb_thr_ratio, int,
++		   0444);
++MODULE_PARM_DESC(ahb_thr_ratio, "AHB Threshold Ratio");
++module_param_named(power_down, dwc_otg_module_params.power_down, int, 0444);
++MODULE_PARM_DESC(power_down, "Power Down Mode");
++module_param_named(reload_ctl, dwc_otg_module_params.reload_ctl, int, 0444);
++MODULE_PARM_DESC(reload_ctl, "HFIR Reload Control");
++module_param_named(dev_out_nak, dwc_otg_module_params.dev_out_nak, int, 0444);
++MODULE_PARM_DESC(dev_out_nak, "Enable Device OUT NAK");
++module_param_named(cont_on_bna, dwc_otg_module_params.cont_on_bna, int, 0444);
++MODULE_PARM_DESC(cont_on_bna, "Enable Enable Continue on BNA");
++module_param_named(ahb_single, dwc_otg_module_params.ahb_single, int, 0444);
++MODULE_PARM_DESC(ahb_single, "Enable AHB Single Support");
++module_param_named(adp_enable, dwc_otg_module_params.adp_enable, int, 0444);
++MODULE_PARM_DESC(adp_enable, "ADP Enable 0=ADP Disabled 1=ADP Enabled");
++module_param_named(otg_ver, dwc_otg_module_params.otg_ver, int, 0444);
++MODULE_PARM_DESC(otg_ver, "OTG revision supported 0=OTG 1.3 1=OTG 2.0");
++module_param(microframe_schedule, bool, 0444);
++MODULE_PARM_DESC(microframe_schedule, "Enable the microframe scheduler");
++
++module_param(fiq_enable, bool, 0444);
++MODULE_PARM_DESC(fiq_enable, "Enable the FIQ");
++module_param(nak_holdoff, ushort, 0644);
++MODULE_PARM_DESC(nak_holdoff, "Throttle duration for bulk split-transaction endpoints on a NAK. Default 8");
++module_param(fiq_fsm_enable, bool, 0444);
++MODULE_PARM_DESC(fiq_fsm_enable, "Enable the FIQ to perform split transactions as defined by fiq_fsm_mask");
++module_param(fiq_fsm_mask, ushort, 0444);
++MODULE_PARM_DESC(fiq_fsm_mask, "Bitmask of transactions to perform in the FIQ.\n"
++					"Bit 0 : Non-periodic split transactions\n"
++					"Bit 1 : Periodic split transactions\n"
++					"Bit 2 : High-speed multi-transfer isochronous\n"
++					"All other bits should be set 0.");
++module_param(int_ep_interval_min, ushort, 0644);
++MODULE_PARM_DESC(int_ep_interval_min, "Clamp high-speed Interrupt endpoints to a minimum polling interval.\n"
++					"0..1 = Use endpoint default\n"
++					"2..n = Minimum interval n microframes. Use powers of 2.\n");
++
++module_param(cil_force_host, bool, 0644);
++MODULE_PARM_DESC(cil_force_host, "On a connector-ID status change, "
++					"force Host Mode regardless of OTG state.");
++
++/** @page "Module Parameters"
++ *
++ * The following parameters may be specified when starting the module.
++ * These parameters define how the DWC_otg controller should be
++ * configured. Parameter values are passed to the CIL initialization
++ * function dwc_otg_cil_init
++ *
++ * Example: <code>modprobe dwc_otg speed=1 otg_cap=1</code>
++ *
++
++ <table>
++ <tr><td>Parameter Name</td><td>Meaning</td></tr>
++
++ <tr>
++ <td>otg_cap</td>
++ <td>Specifies the OTG capabilities. The driver will automatically detect the
++ value for this parameter if none is specified.
++ - 0: HNP and SRP capable (default, if available)
++ - 1: SRP Only capable
++ - 2: No HNP/SRP capable
++ </td></tr>
++
++ <tr>
++ <td>dma_enable</td>
++ <td>Specifies whether to use slave or DMA mode for accessing the data FIFOs.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: Slave
++ - 1: DMA (default, if available)
++ </td></tr>
++
++ <tr>
++ <td>dma_burst_size</td>
++ <td>The DMA Burst size (applicable only for External DMA Mode).
++ - Values: 1, 4, 8 16, 32, 64, 128, 256 (default 32)
++ </td></tr>
++
++ <tr>
++ <td>speed</td>
++ <td>Specifies the maximum speed of operation in host and device mode. The
++ actual speed depends on the speed of the attached device and the value of
++ phy_type.
++ - 0: High Speed (default)
++ - 1: Full Speed
++ </td></tr>
++
++ <tr>
++ <td>host_support_fs_ls_low_power</td>
++ <td>Specifies whether low power mode is supported when attached to a Full
++ Speed or Low Speed device in host mode.
++ - 0: Don't support low power mode (default)
++ - 1: Support low power mode
++ </td></tr>
++
++ <tr>
++ <td>host_ls_low_power_phy_clk</td>
++ <td>Specifies the PHY clock rate in low power mode when connected to a Low
++ Speed device in host mode. This parameter is applicable only if
++ HOST_SUPPORT_FS_LS_LOW_POWER is enabled.
++ - 0: 48 MHz (default)
++ - 1: 6 MHz
++ </td></tr>
++
++ <tr>
++ <td>enable_dynamic_fifo</td>
++ <td> Specifies whether FIFOs may be resized by the driver software.
++ - 0: Use cC FIFO size parameters
++ - 1: Allow dynamic FIFO sizing (default)
++ </td></tr>
++
++ <tr>
++ <td>data_fifo_size</td>
++ <td>Total number of 4-byte words in the data FIFO memory. This memory
++ includes the Rx FIFO, non-periodic Tx FIFO, and periodic Tx FIFOs.
++ - Values: 32 to 32768 (default 8192)
++
++ Note: The total FIFO memory depth in the FPGA configuration is 8192.
++ </td></tr>
++
++ <tr>
++ <td>dev_rx_fifo_size</td>
++ <td>Number of 4-byte words in the Rx FIFO in device mode when dynamic
++ FIFO sizing is enabled.
++ - Values: 16 to 32768 (default 1064)
++ </td></tr>
++
++ <tr>
++ <td>dev_nperio_tx_fifo_size</td>
++ <td>Number of 4-byte words in the non-periodic Tx FIFO in device mode when
++ dynamic FIFO sizing is enabled.
++ - Values: 16 to 32768 (default 1024)
++ </td></tr>
++
++ <tr>
++ <td>dev_perio_tx_fifo_size_n (n = 1 to 15)</td>
++ <td>Number of 4-byte words in each of the periodic Tx FIFOs in device mode
++ when dynamic FIFO sizing is enabled.
++ - Values: 4 to 768 (default 256)
++ </td></tr>
++
++ <tr>
++ <td>host_rx_fifo_size</td>
++ <td>Number of 4-byte words in the Rx FIFO in host mode when dynamic FIFO
++ sizing is enabled.
++ - Values: 16 to 32768 (default 1024)
++ </td></tr>
++
++ <tr>
++ <td>host_nperio_tx_fifo_size</td>
++ <td>Number of 4-byte words in the non-periodic Tx FIFO in host mode when
++ dynamic FIFO sizing is enabled in the core.
++ - Values: 16 to 32768 (default 1024)
++ </td></tr>
++
++ <tr>
++ <td>host_perio_tx_fifo_size</td>
++ <td>Number of 4-byte words in the host periodic Tx FIFO when dynamic FIFO
++ sizing is enabled.
++ - Values: 16 to 32768 (default 1024)
++ </td></tr>
++
++ <tr>
++ <td>max_transfer_size</td>
++ <td>The maximum transfer size supported in bytes.
++ - Values: 2047 to 65,535 (default 65,535)
++ </td></tr>
++
++ <tr>
++ <td>max_packet_count</td>
++ <td>The maximum number of packets in a transfer.
++ - Values: 15 to 511 (default 511)
++ </td></tr>
++
++ <tr>
++ <td>host_channels</td>
++ <td>The number of host channel registers to use.
++ - Values: 1 to 16 (default 12)
++
++ Note: The FPGA configuration supports a maximum of 12 host channels.
++ </td></tr>
++
++ <tr>
++ <td>dev_endpoints</td>
++ <td>The number of endpoints in addition to EP0 available for device mode
++ operations.
++ - Values: 1 to 15 (default 6 IN and OUT)
++
++ Note: The FPGA configuration supports a maximum of 6 IN and OUT endpoints in
++ addition to EP0.
++ </td></tr>
++
++ <tr>
++ <td>phy_type</td>
++ <td>Specifies the type of PHY interface to use. By default, the driver will
++ automatically detect the phy_type.
++ - 0: Full Speed
++ - 1: UTMI+ (default, if available)
++ - 2: ULPI
++ </td></tr>
++
++ <tr>
++ <td>phy_utmi_width</td>
++ <td>Specifies the UTMI+ Data Width. This parameter is applicable for a
++ phy_type of UTMI+. Also, this parameter is applicable only if the
++ OTG_HSPHY_WIDTH cC parameter was set to "8 and 16 bits", meaning that the
++ core has been configured to work at either data path width.
++ - Values: 8 or 16 bits (default 16)
++ </td></tr>
++
++ <tr>
++ <td>phy_ulpi_ddr</td>
++ <td>Specifies whether the ULPI operates at double or single data rate. This
++ parameter is only applicable if phy_type is ULPI.
++ - 0: single data rate ULPI interface with 8 bit wide data bus (default)
++ - 1: double data rate ULPI interface with 4 bit wide data bus
++ </td></tr>
++
++ <tr>
++ <td>i2c_enable</td>
++ <td>Specifies whether to use the I2C interface for full speed PHY. This
++ parameter is only applicable if PHY_TYPE is FS.
++ - 0: Disabled (default)
++ - 1: Enabled
++ </td></tr>
++
++ <tr>
++ <td>ulpi_fs_ls</td>
++ <td>Specifies whether to use ULPI FS/LS mode only.
++ - 0: Disabled (default)
++ - 1: Enabled
++ </td></tr>
++
++ <tr>
++ <td>ts_dline</td>
++ <td>Specifies whether term select D-Line pulsing for all PHYs is enabled.
++ - 0: Disabled (default)
++ - 1: Enabled
++ </td></tr>
++
++ <tr>
++ <td>en_multiple_tx_fifo</td>
++ <td>Specifies whether dedicatedto tx fifos are enabled for non periodic IN EPs.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: Disabled
++ - 1: Enabled (default, if available)
++ </td></tr>
++
++ <tr>
++ <td>dev_tx_fifo_size_n (n = 1 to 15)</td>
++ <td>Number of 4-byte words in each of the Tx FIFOs in device mode
++ when dynamic FIFO sizing is enabled.
++ - Values: 4 to 768 (default 256)
++ </td></tr>
++
++ <tr>
++ <td>tx_thr_length</td>
++ <td>Transmit Threshold length in 32 bit double words
++ - Values: 8 to 128 (default 64)
++ </td></tr>
++
++ <tr>
++ <td>rx_thr_length</td>
++ <td>Receive Threshold length in 32 bit double words
++ - Values: 8 to 128 (default 64)
++ </td></tr>
++
++<tr>
++ <td>thr_ctl</td>
++ <td>Specifies whether to enable Thresholding for Device mode. Bits 0, 1, 2 of
++ this parmater specifies if thresholding is enabled for non-Iso Tx, Iso Tx and
++ Rx transfers accordingly.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - Values: 0 to 7 (default 0)
++ Bit values indicate:
++ - 0: Thresholding disabled
++ - 1: Thresholding enabled
++ </td></tr>
++
++<tr>
++ <td>dma_desc_enable</td>
++ <td>Specifies whether to enable Descriptor DMA mode.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: Descriptor DMA disabled
++ - 1: Descriptor DMA (default, if available)
++ </td></tr>
++
++<tr>
++ <td>mpi_enable</td>
++ <td>Specifies whether to enable MPI enhancement mode.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: MPI disabled (default)
++ - 1: MPI enable
++ </td></tr>
++
++<tr>
++ <td>pti_enable</td>
++ <td>Specifies whether to enable PTI enhancement support.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: PTI disabled (default)
++ - 1: PTI enable
++ </td></tr>
++
++<tr>
++ <td>lpm_enable</td>
++ <td>Specifies whether to enable LPM support.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: LPM disabled
++ - 1: LPM enable (default, if available)
++ </td></tr>
++
++<tr>
++ <td>ic_usb_cap</td>
++ <td>Specifies whether to enable IC_USB capability.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: IC_USB disabled (default, if available)
++ - 1: IC_USB enable
++ </td></tr>
++
++<tr>
++ <td>ahb_thr_ratio</td>
++ <td>Specifies AHB Threshold ratio.
++ - Values: 0 to 3 (default 0)
++ </td></tr>
++
++<tr>
++ <td>power_down</td>
++ <td>Specifies Power Down(Hibernation) Mode.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: Power Down disabled (default)
++ - 2: Power Down enabled
++ </td></tr>
++
++ <tr>
++ <td>reload_ctl</td>
++ <td>Specifies whether dynamic reloading of the HFIR register is allowed during
++ run time. The driver will automatically detect the value for this parameter if
++ none is specified. In case the HFIR value is reloaded when HFIR.RldCtrl == 1'b0
++ the core might misbehave.
++ - 0: Reload Control disabled (default)
++ - 1: Reload Control enabled
++ </td></tr>
++
++ <tr>
++ <td>dev_out_nak</td>
++ <td>Specifies whether  Device OUT NAK enhancement enabled or no.
++ The driver will automatically detect the value for this parameter if
++ none is specified. This parameter is valid only when OTG_EN_DESC_DMA == 1b1.
++ - 0: The core does not set NAK after Bulk OUT transfer complete (default)
++ - 1: The core sets NAK after Bulk OUT transfer complete
++ </td></tr>
++
++ <tr>
++ <td>cont_on_bna</td>
++ <td>Specifies whether Enable Continue on BNA enabled or no.
++ After receiving BNA interrupt the core disables the endpoint,when the
++ endpoint is re-enabled by the application the
++ - 0: Core starts processing from the DOEPDMA descriptor (default)
++ - 1: Core starts processing from the descriptor which received the BNA.
++ This parameter is valid only when OTG_EN_DESC_DMA == 1b1.
++ </td></tr>
++
++ <tr>
++ <td>ahb_single</td>
++ <td>This bit when programmed supports SINGLE transfers for remainder data
++ in a transfer for DMA mode of operation.
++ - 0: The remainder data will be sent using INCR burst size (default)
++ - 1: The remainder data will be sent using SINGLE burst size.
++ </td></tr>
++
++<tr>
++ <td>adp_enable</td>
++ <td>Specifies whether ADP feature is enabled.
++ The driver will automatically detect the value for this parameter if none is
++ specified.
++ - 0: ADP feature disabled (default)
++ - 1: ADP feature enabled
++ </td></tr>
++
++  <tr>
++ <td>otg_ver</td>
++ <td>Specifies whether OTG is performing as USB OTG Revision 2.0 or Revision 1.3
++ USB OTG device.
++ - 0: OTG 2.0 support disabled (default)
++ - 1: OTG 2.0 support enabled
++ </td></tr>
++
++*/
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.h
+@@ -0,0 +1,86 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_driver.h $
++ * $Revision: #19 $
++ * $Date: 2010/11/15 $
++ * $Change: 1627671 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#ifndef __DWC_OTG_DRIVER_H__
++#define __DWC_OTG_DRIVER_H__
++
++/** @file
++ * This file contains the interface to the Linux driver.
++ */
++#include "dwc_otg_os_dep.h"
++#include "dwc_otg_core_if.h"
++
++/* Type declarations */
++struct dwc_otg_pcd;
++struct dwc_otg_hcd;
++
++/**
++ * This structure is a wrapper that encapsulates the driver components used to
++ * manage a single DWC_otg controller.
++ */
++typedef struct dwc_otg_device {
++	/** Structure containing OS-dependent stuff. KEEP THIS STRUCT AT THE
++	 * VERY BEGINNING OF THE DEVICE STRUCT. OSes such as FreeBSD and NetBSD
++	 * require this. */
++	struct os_dependent os_dep;
++
++	/** Pointer to the core interface structure. */
++	dwc_otg_core_if_t *core_if;
++
++	/** Pointer to the PCD structure. */
++	struct dwc_otg_pcd *pcd;
++
++	/** Pointer to the HCD structure. */
++	struct dwc_otg_hcd *hcd;
++
++	/** Flag to indicate whether the common IRQ handler is installed. */
++	uint8_t common_irq_installed;
++
++} dwc_otg_device_t;
++
++/*We must clear S3C24XX_EINTPEND external interrupt register
++ * because after clearing in this register trigerred IRQ from
++ * H/W core in kernel interrupt can be occured again before OTG
++ * handlers clear all IRQ sources of Core registers because of
++ * timing latencies and Low Level IRQ Type.
++ */
++#ifdef CONFIG_MACH_IPMATE
++#define  S3C2410X_CLEAR_EINTPEND()   \
++do { \
++	__raw_writel(1UL << 11,S3C24XX_EINTPEND); \
++} while (0)
++#else
++#define  S3C2410X_CLEAR_EINTPEND()   do { } while (0)
++#endif
++
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
+@@ -0,0 +1,1431 @@
++/*
++ * dwc_otg_fiq_fsm.c - The finite state machine FIQ
++ *
++ * Copyright (c) 2013 Raspberry Pi Foundation
++ *
++ * Author: Jonathan Bell <jonathan@raspberrypi.org>
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions are met:
++ *	* Redistributions of source code must retain the above copyright
++ *	  notice, this list of conditions and the following disclaimer.
++ *	* Redistributions in binary form must reproduce the above copyright
++ *	  notice, this list of conditions and the following disclaimer in the
++ *	  documentation and/or other materials provided with the distribution.
++ *	* Neither the name of Raspberry Pi nor the
++ *	  names of its contributors may be used to endorse or promote products
++ *	  derived from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
++ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ * This FIQ implements functionality that performs split transactions on
++ * the dwc_otg hardware without any outside intervention. A split transaction
++ * is "queued" by nominating a specific host channel to perform the entirety
++ * of a split transaction. This FIQ will then perform the microframe-precise
++ * scheduling required in each phase of the transaction until completion.
++ *
++ * The FIQ functionality is glued into the Synopsys driver via the entry point
++ * in the FSM enqueue function, and at the exit point in handling a HC interrupt
++ * for a FSM-enabled channel.
++ *
++ * NB: Large parts of this implementation have architecture-specific code.
++ * For porting this functionality to other ARM machines, the minimum is required:
++ * - An interrupt controller allowing the top-level dwc USB interrupt to be routed
++ *   to the FIQ
++ * - A method of forcing a software generated interrupt from FIQ mode that then
++ *   triggers an IRQ entry (with the dwc USB handler called by this IRQ number)
++ * - Guaranteed interrupt routing such that both the FIQ and SGI occur on the same
++ *   processor core - there is no locking between the FIQ and IRQ (aside from
++ *   local_fiq_disable)
++ *
++ */
++
++#include "dwc_otg_fiq_fsm.h"
++
++
++char buffer[1000*16];
++int wptr;
++void notrace _fiq_print(enum fiq_debug_level dbg_lvl, volatile struct fiq_state *state, char *fmt, ...)
++{
++	enum fiq_debug_level dbg_lvl_req = FIQDBG_ERR;
++	va_list args;
++	char text[17];
++	hfnum_data_t hfnum = { .d32 = FIQ_READ(state->dwc_regs_base + 0x408) };
++
++	if((dbg_lvl & dbg_lvl_req) || dbg_lvl == FIQDBG_ERR)
++	{
++		snprintf(text, 9, " %4d:%1u  ", hfnum.b.frnum/8, hfnum.b.frnum & 7);
++		va_start(args, fmt);
++		vsnprintf(text+8, 9, fmt, args);
++		va_end(args);
++
++		memcpy(buffer + wptr, text, 16);
++		wptr = (wptr + 16) % sizeof(buffer);
++	}
++}
++
++
++#ifdef CONFIG_ARM64
++
++inline void fiq_fsm_spin_lock(fiq_lock_t *lock)
++{
++	spin_lock((spinlock_t *)lock);
++}
++
++inline void fiq_fsm_spin_unlock(fiq_lock_t *lock)
++{
++	spin_unlock((spinlock_t *)lock);
++}
++
++#else
++
++/**
++ * fiq_fsm_spin_lock() - ARMv6+ bare bones spinlock
++ * Must be called with local interrupts and FIQ disabled.
++ */
++#if defined(CONFIG_ARCH_BCM2835) && defined(CONFIG_SMP)
++inline void fiq_fsm_spin_lock(fiq_lock_t *lock)
++{
++	unsigned long tmp;
++	uint32_t newval;
++	fiq_lock_t lockval;
++	/* Nested locking, yay. If we are on the same CPU as the fiq, then the disable
++	 * will be sufficient. If we are on a different CPU, then the lock protects us. */
++	prefetchw(&lock->slock);
++	asm volatile (
++	"1:     ldrex   %0, [%3]\n"
++	"       add     %1, %0, %4\n"
++	"       strex   %2, %1, [%3]\n"
++	"       teq     %2, #0\n"
++	"       bne     1b"
++	: "=&r" (lockval), "=&r" (newval), "=&r" (tmp)
++	: "r" (&lock->slock), "I" (1 << 16)
++	: "cc");
++
++	while (lockval.tickets.next != lockval.tickets.owner) {
++		wfe();
++		lockval.tickets.owner = READ_ONCE(lock->tickets.owner);
++	}
++	smp_mb();
++}
++#else
++inline void fiq_fsm_spin_lock(fiq_lock_t *lock) { }
++#endif
++
++/**
++ * fiq_fsm_spin_unlock() - ARMv6+ bare bones spinunlock
++ */
++#if defined(CONFIG_ARCH_BCM2835) && defined(CONFIG_SMP)
++inline void fiq_fsm_spin_unlock(fiq_lock_t *lock)
++{
++	smp_mb();
++	lock->tickets.owner++;
++	dsb_sev();
++}
++#else
++inline void fiq_fsm_spin_unlock(fiq_lock_t *lock) { }
++#endif
++
++#endif
++
++/**
++ * fiq_fsm_restart_channel() - Poke channel enable bit for a split transaction
++ * @channel: channel to re-enable
++ */
++static void fiq_fsm_restart_channel(struct fiq_state *st, int n, int force)
++{
++	hcchar_data_t hcchar = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR) };
++
++	hcchar.b.chen = 0;
++	if (st->channel[n].hcchar_copy.b.eptype & 0x1) {
++		hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) };
++		/* Hardware bug workaround: update the ssplit index */
++		if (st->channel[n].hcsplt_copy.b.spltena)
++			st->channel[n].expected_uframe = (hfnum.b.frnum + 1) & 0x3FFF;
++
++		hcchar.b.oddfrm = (hfnum.b.frnum & 0x1) ? 0	: 1;
++	}
++
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, hcchar.d32);
++	hcchar.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR);
++	hcchar.b.chen = 1;
++
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, hcchar.d32);
++	fiq_print(FIQDBG_INT, st, "HCGO %01d %01d", n, force);
++}
++
++/**
++ * fiq_fsm_setup_csplit() - Prepare a host channel for a CSplit transaction stage
++ * @st: Pointer to the channel's state
++ * @n : channel number
++ *
++ * Change host channel registers to perform a complete-split transaction. Being mindful of the
++ * endpoint direction, set control regs up correctly.
++ */
++static void notrace fiq_fsm_setup_csplit(struct fiq_state *st, int n)
++{
++	hcsplt_data_t hcsplt = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT) };
++	hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) };
++
++	hcsplt.b.compsplt = 1;
++	if (st->channel[n].hcchar_copy.b.epdir == 1) {
++		// If IN, the CSPLIT result contains the data or a hub handshake. hctsiz = maxpacket.
++		hctsiz.b.xfersize = st->channel[n].hctsiz_copy.b.xfersize;
++	} else {
++		// If OUT, the CSPLIT result contains handshake only.
++		hctsiz.b.xfersize = 0;
++	}
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT, hcsplt.d32);
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32);
++	mb();
++}
++
++/**
++ * fiq_fsm_restart_np_pending() - Restart a single non-periodic contended transfer
++ * @st: Pointer to the channel's state
++ * @num_channels: Total number of host channels
++ * @orig_channel: Channel index of completed transfer
++ *
++ * In the case where an IN and OUT transfer are simultaneously scheduled to the
++ * same device/EP, inadequate hub implementations will misbehave. Once the first
++ * transfer is complete, a pending non-periodic split can then be issued.
++ */
++static void notrace fiq_fsm_restart_np_pending(struct fiq_state *st, int num_channels, int orig_channel)
++{
++	int i;
++	int dev_addr = st->channel[orig_channel].hcchar_copy.b.devaddr;
++	int ep_num = st->channel[orig_channel].hcchar_copy.b.epnum;
++	for (i = 0; i < num_channels; i++) {
++		if (st->channel[i].fsm == FIQ_NP_SSPLIT_PENDING &&
++			st->channel[i].hcchar_copy.b.devaddr == dev_addr &&
++			st->channel[i].hcchar_copy.b.epnum == ep_num) {
++			st->channel[i].fsm = FIQ_NP_SSPLIT_STARTED;
++			fiq_fsm_restart_channel(st, i, 0);
++			break;
++		}
++	}
++}
++
++static inline int notrace fiq_get_xfer_len(struct fiq_state *st, int n)
++{
++	/* The xfersize register is a bit wonky. For IN transfers, it decrements by the packet size. */
++	hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) };
++
++	if (st->channel[n].hcchar_copy.b.epdir == 0) {
++		return st->channel[n].hctsiz_copy.b.xfersize;
++	} else {
++		return st->channel[n].hctsiz_copy.b.xfersize - hctsiz.b.xfersize;
++	}
++
++}
++
++
++/**
++ * fiq_increment_dma_buf() - update DMA address for bounce buffers after a CSPLIT
++ *
++ * Of use only for IN periodic transfers.
++ */
++static int notrace fiq_increment_dma_buf(struct fiq_state *st, int num_channels, int n)
++{
++	hcdma_data_t hcdma;
++	int i = st->channel[n].dma_info.index;
++	int len;
++	struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
++
++	len = fiq_get_xfer_len(st, n);
++	fiq_print(FIQDBG_INT, st, "LEN: %03d", len);
++	st->channel[n].dma_info.slot_len[i] = len;
++	i++;
++	if (i > 6)
++		BUG();
++
++	hcdma.d32 = (dma_addr_t) &blob->channel[n].index[i].buf[0];
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
++	st->channel[n].dma_info.index = i;
++	return 0;
++}
++
++/**
++ * fiq_reload_hctsiz() - for IN transactions, reset HCTSIZ
++ */
++static void notrace fiq_fsm_reload_hctsiz(struct fiq_state *st, int n)
++{
++	hctsiz_data_t hctsiz = { .d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ) };
++	hctsiz.b.xfersize = st->channel[n].hctsiz_copy.b.xfersize;
++	hctsiz.b.pktcnt = 1;
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32);
++}
++
++/**
++ * fiq_fsm_reload_hcdma() - for OUT transactions, rewind DMA pointer
++ */
++static void notrace fiq_fsm_reload_hcdma(struct fiq_state *st, int n)
++{
++	hcdma_data_t hcdma = st->channel[n].hcdma_copy;
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
++}
++
++/**
++ * fiq_iso_out_advance() - update DMA address and split position bits
++ * for isochronous OUT transactions.
++ *
++ * Returns 1 if this is the last packet queued, 0 otherwise. Split-ALL and
++ * Split-BEGIN states are not handled - this is done when the transaction was queued.
++ *
++ * This function must only be called from the FIQ_ISO_OUT_ACTIVE state.
++ */
++static int notrace fiq_iso_out_advance(struct fiq_state *st, int num_channels, int n)
++{
++	hcsplt_data_t hcsplt;
++	hctsiz_data_t hctsiz;
++	hcdma_data_t hcdma;
++	struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
++	int last = 0;
++	int i = st->channel[n].dma_info.index;
++
++	fiq_print(FIQDBG_INT, st, "ADV %01d %01d ", n, i);
++	i++;
++	if (i == 4)
++		last = 1;
++	if (st->channel[n].dma_info.slot_len[i+1] == 255)
++		last = 1;
++
++	/* New DMA address - address of bounce buffer referred to in index */
++	hcdma.d32 = (dma_addr_t) blob->channel[n].index[i].buf;
++	//hcdma.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA);
++	//hcdma.d32 += st->channel[n].dma_info.slot_len[i];
++	fiq_print(FIQDBG_INT, st, "LAST: %01d ", last);
++	fiq_print(FIQDBG_INT, st, "LEN: %03d", st->channel[n].dma_info.slot_len[i]);
++	hcsplt.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT);
++	hctsiz.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ);
++	hcsplt.b.xactpos = (last) ? ISOC_XACTPOS_END : ISOC_XACTPOS_MID;
++	/* Set up new packet length */
++	hctsiz.b.pktcnt = 1;
++	hctsiz.b.xfersize = st->channel[n].dma_info.slot_len[i];
++	fiq_print(FIQDBG_INT, st, "%08x", hctsiz.d32);
++
++	st->channel[n].dma_info.index++;
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCSPLT, hcsplt.d32);
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, hctsiz.d32);
++	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
++	return last;
++}
++
++/**
++ * fiq_fsm_tt_next_isoc() - queue next pending isochronous out start-split on a TT
++ *
++ * Despite the limitations of the DWC core, we can force a microframe pipeline of
++ * isochronous OUT start-split transactions while waiting for a corresponding other-type
++ * of endpoint to finish its CSPLITs. TTs have big periodic buffers therefore it
++ * is very unlikely that filling the start-split FIFO will cause data loss.
++ * This allows much better interleaving of transactions in an order-independent way-
++ * there is no requirement to prioritise isochronous, just a state-space search has
++ * to be performed on each periodic start-split complete interrupt.
++ */
++static int notrace fiq_fsm_tt_next_isoc(struct fiq_state *st, int num_channels, int n)
++{
++	int hub_addr = st->channel[n].hub_addr;
++	int port_addr = st->channel[n].port_addr;
++	int i, poked = 0;
++	for (i = 0; i < num_channels; i++) {
++		if (i == n || st->channel[i].fsm == FIQ_PASSTHROUGH)
++			continue;
++		if (st->channel[i].hub_addr == hub_addr &&
++			st->channel[i].port_addr == port_addr) {
++			switch (st->channel[i].fsm) {
++			case FIQ_PER_ISO_OUT_PENDING:
++				if (st->channel[i].nrpackets == 1) {
++					st->channel[i].fsm = FIQ_PER_ISO_OUT_LAST;
++				} else {
++					st->channel[i].fsm = FIQ_PER_ISO_OUT_ACTIVE;
++				}
++				fiq_fsm_restart_channel(st, i, 0);
++				poked = 1;
++				break;
++
++			default:
++				break;
++			}
++		}
++		if (poked)
++			break;
++	}
++	return poked;
++}
++
++/**
++ * fiq_fsm_tt_in_use() - search for host channels using this TT
++ * @n: Channel to use as reference
++ *
++ */
++int notrace noinline fiq_fsm_tt_in_use(struct fiq_state *st, int num_channels, int n)
++{
++	int hub_addr = st->channel[n].hub_addr;
++	int port_addr = st->channel[n].port_addr;
++	int i, in_use = 0;
++	for (i = 0; i < num_channels; i++) {
++		if (i == n || st->channel[i].fsm == FIQ_PASSTHROUGH)
++			continue;
++		switch (st->channel[i].fsm) {
++		/* TT is reserved for channels that are in the middle of a periodic
++		 * split transaction.
++		 */
++		case FIQ_PER_SSPLIT_STARTED:
++		case FIQ_PER_CSPLIT_WAIT:
++		case FIQ_PER_CSPLIT_NYET1:
++		//case FIQ_PER_CSPLIT_POLL:
++		case FIQ_PER_ISO_OUT_ACTIVE:
++		case FIQ_PER_ISO_OUT_LAST:
++			if (st->channel[i].hub_addr == hub_addr &&
++				st->channel[i].port_addr == port_addr) {
++				in_use = 1;
++			}
++			break;
++		default:
++			break;
++		}
++		if (in_use)
++			break;
++	}
++	return in_use;
++}
++
++/**
++ * fiq_fsm_more_csplits() - determine whether additional CSPLITs need
++ * 			to be issued for this IN transaction.
++ *
++ * We cannot tell the inbound PID of a data packet due to hardware limitations.
++ * we need to make an educated guess as to whether we need to queue another CSPLIT
++ * or not. A no-brainer is when we have received enough data to fill the endpoint
++ * size, but for endpoints that give variable-length data then we have to resort
++ * to heuristics.
++ *
++ * We also return whether this is the last CSPLIT to be queued, again based on
++ * heuristics. This is to allow a 1-uframe overlap of periodic split transactions.
++ * Note: requires at least 1 CSPLIT to have been performed prior to being called.
++ */
++
++/*
++ * We need some way of guaranteeing if a returned periodic packet of size X
++ * has a DATA0 PID.
++ * The heuristic value of 144 bytes assumes that the received data has maximal
++ * bit-stuffing and the clock frequency of the transmitting device is at the lowest
++ * permissible limit. If the transfer length results in a final packet size
++ * 144 < p <= 188, then an erroneous CSPLIT will be issued.
++ * Also used to ensure that an endpoint will nominally only return a single
++ * complete-split worth of data.
++ */
++#define DATA0_PID_HEURISTIC 144
++
++static int notrace noinline fiq_fsm_more_csplits(struct fiq_state *state, int n, int *probably_last)
++{
++
++	int i;
++	int total_len = 0;
++	int more_needed = 1;
++	struct fiq_channel_state *st = &state->channel[n];
++
++	for (i = 0; i < st->dma_info.index; i++) {
++			total_len += st->dma_info.slot_len[i];
++	}
++
++	*probably_last = 0;
++
++	if (st->hcchar_copy.b.eptype == 0x3) {
++		/*
++		 * An interrupt endpoint will take max 2 CSPLITs. if we are receiving data
++		 * then this is definitely the last CSPLIT.
++		 */
++		*probably_last = 1;
++	} else {
++		/* Isoc IN. This is a bit risky if we are the first transaction:
++		 * we may have been held off slightly. */
++		if (i > 1 && st->dma_info.slot_len[st->dma_info.index-1] <= DATA0_PID_HEURISTIC) {
++			more_needed = 0;
++		}
++		/* If in the next uframe we will receive enough data to fill the endpoint,
++		 * then only issue 1 more csplit.
++		 */
++		if (st->hctsiz_copy.b.xfersize - total_len <= DATA0_PID_HEURISTIC)
++			*probably_last = 1;
++	}
++
++	if (total_len >= st->hctsiz_copy.b.xfersize ||
++		i == 6 || total_len == 0)
++		/* Note: due to bit stuffing it is possible to have > 6 CSPLITs for
++		 * a single endpoint. Accepting more would completely break our scheduling mechanism though
++		 * - in these extreme cases we will pass through a truncated packet.
++		 */
++		more_needed = 0;
++
++	return more_needed;
++}
++
++/**
++ * fiq_fsm_too_late() - Test transaction for lateness
++ *
++ * If a SSPLIT for a large IN transaction is issued too late in a frame,
++ * the hub will disable the port to the device and respond with ERR handshakes.
++ * The hub status endpoint will not reflect this change.
++ * Returns 1 if we will issue a SSPLIT that will result in a device babble.
++ */
++int notrace fiq_fsm_too_late(struct fiq_state *st, int n)
++{
++	int uframe;
++	hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) };
++	uframe = hfnum.b.frnum & 0x7;
++	if ((uframe < 6) && (st->channel[n].nrpackets + 1 + uframe > 7)) {
++		return 1;
++	} else {
++		return 0;
++	}
++}
++
++
++/**
++ * fiq_fsm_start_next_periodic() - A half-arsed attempt at a microframe pipeline
++ *
++ * Search pending transactions in the start-split pending state and queue them.
++ * Don't queue packets in uframe .5 (comes out in .6) (USB2.0 11.18.4).
++ * Note: we specifically don't do isochronous OUT transactions first because better
++ * use of the TT's start-split fifo can be achieved by pipelining an IN before an OUT.
++ */
++static void notrace noinline fiq_fsm_start_next_periodic(struct fiq_state *st, int num_channels)
++{
++	int n;
++	hfnum_data_t hfnum = { .d32 = FIQ_READ(st->dwc_regs_base + HFNUM) };
++	if ((hfnum.b.frnum & 0x7) == 5)
++		return;
++	for (n = 0; n < num_channels; n++) {
++		if (st->channel[n].fsm == FIQ_PER_SSPLIT_QUEUED) {
++			/* Check to see if any other transactions are using this TT */
++			if(!fiq_fsm_tt_in_use(st, num_channels, n)) {
++				if (!fiq_fsm_too_late(st, n)) {
++					st->channel[n].fsm = FIQ_PER_SSPLIT_STARTED;
++					fiq_print(FIQDBG_INT, st, "NEXTPER ");
++					fiq_fsm_restart_channel(st, n, 0);
++				} else {
++					st->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT;
++				}
++				break;
++			}
++		}
++	}
++	for (n = 0; n < num_channels; n++) {
++		if (st->channel[n].fsm == FIQ_PER_ISO_OUT_PENDING) {
++			if (!fiq_fsm_tt_in_use(st, num_channels, n)) {
++				fiq_print(FIQDBG_INT, st, "NEXTISO ");
++				if (st->channel[n].nrpackets == 1)
++					st->channel[n].fsm = FIQ_PER_ISO_OUT_LAST;
++				else
++					st->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE;
++				fiq_fsm_restart_channel(st, n, 0);
++				break;
++			}
++		}
++	}
++}
++
++/**
++ * fiq_fsm_update_hs_isoc() - update isochronous frame and transfer data
++ * @state:	Pointer to fiq_state
++ * @n:		Channel transaction is active on
++ * @hcint:	Copy of host channel interrupt register
++ *
++ * Returns 0 if there are no more transactions for this HC to do, 1
++ * otherwise.
++ */
++static int notrace noinline fiq_fsm_update_hs_isoc(struct fiq_state *state, int n, hcint_data_t hcint)
++{
++	struct fiq_channel_state *st = &state->channel[n];
++	int xfer_len = 0, nrpackets = 0;
++	hcdma_data_t hcdma;
++	fiq_print(FIQDBG_INT, state, "HSISO %02d", n);
++
++	xfer_len = fiq_get_xfer_len(state, n);
++	st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].actual_length = xfer_len;
++
++	st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].status = hcint.d32;
++
++	st->hs_isoc_info.index++;
++	if (st->hs_isoc_info.index == st->hs_isoc_info.nrframes) {
++		return 0;
++	}
++
++	/* grab the next DMA address offset from the array */
++	hcdma.d32 = st->hcdma_copy.d32 + st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].offset;
++	FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
++
++	/* We need to set multi_count. This is a bit tricky - has to be set per-transaction as
++	 * the core needs to be told to send the correct number. Caution: for IN transfers,
++	 * this is always set to the maximum size of the endpoint. */
++	xfer_len = st->hs_isoc_info.iso_desc[st->hs_isoc_info.index].length;
++	/* Integer divide in a FIQ: fun. FIXME: make this not suck */
++	nrpackets = (xfer_len + st->hcchar_copy.b.mps - 1) / st->hcchar_copy.b.mps;
++	if (nrpackets == 0)
++		nrpackets = 1;
++	st->hcchar_copy.b.multicnt = nrpackets;
++	st->hctsiz_copy.b.pktcnt = nrpackets;
++
++	/* Initial PID also needs to be set */
++	if (st->hcchar_copy.b.epdir == 0) {
++		st->hctsiz_copy.b.xfersize = xfer_len;
++		switch (st->hcchar_copy.b.multicnt) {
++		case 1:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA0;
++			break;
++		case 2:
++		case 3:
++			st->hctsiz_copy.b.pid = DWC_PID_MDATA;
++			break;
++		}
++
++	} else {
++		st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps;
++		switch (st->hcchar_copy.b.multicnt) {
++		case 1:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA0;
++			break;
++		case 2:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA1;
++			break;
++		case 3:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA2;
++			break;
++		}
++	}
++	FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCTSIZ, st->hctsiz_copy.d32);
++	FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR, st->hcchar_copy.d32);
++	/* Channel is enabled on hcint handler exit */
++	fiq_print(FIQDBG_INT, state, "HSISOOUT");
++	return 1;
++}
++
++
++/**
++ * fiq_fsm_do_sof() - FSM start-of-frame interrupt handler
++ * @state:	Pointer to the state struct passed from banked FIQ mode registers.
++ * @num_channels:	set according to the DWC hardware configuration
++ *
++ * The SOF handler in FSM mode has two functions
++ * 1. Hold off SOF from causing schedule advancement in IRQ context if there's
++ *    nothing to do
++ * 2. Advance certain FSM states that require either a microframe delay, or a microframe
++ *    of holdoff.
++ *
++ * The second part is architecture-specific to mach-bcm2835 -
++ * a sane interrupt controller would have a mask register for ARM interrupt sources
++ * to be promoted to the nFIQ line, but it doesn't. Instead a single interrupt
++ * number (USB) can be enabled. This means that certain parts of the USB specification
++ * that require "wait a little while, then issue another packet" cannot be fulfilled with
++ * the timing granularity required to achieve optimal throughout. The workaround is to use
++ * the SOF "timer" (125uS) to perform this task.
++ */
++static int notrace noinline fiq_fsm_do_sof(struct fiq_state *state, int num_channels)
++{
++	hfnum_data_t hfnum = { .d32 = FIQ_READ(state->dwc_regs_base + HFNUM) };
++	int n;
++	int kick_irq = 0;
++
++	if ((hfnum.b.frnum & 0x7) == 1) {
++		/* We cannot issue csplits for transactions in the last frame past (n+1).1
++		 * Check to see if there are any transactions that are stale.
++		 * Boot them out.
++		 */
++		for (n = 0; n < num_channels; n++) {
++			switch (state->channel[n].fsm) {
++			case FIQ_PER_CSPLIT_WAIT:
++			case FIQ_PER_CSPLIT_NYET1:
++			case FIQ_PER_CSPLIT_POLL:
++			case FIQ_PER_CSPLIT_LAST:
++				/* Check if we are no longer in the same full-speed frame. */
++				if (((state->channel[n].expected_uframe & 0x3FFF) & ~0x7) <
++						(hfnum.b.frnum & ~0x7))
++					state->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT;
++				break;
++			default:
++				break;
++			}
++		}
++	}
++
++	for (n = 0; n < num_channels; n++) {
++		switch (state->channel[n].fsm) {
++
++		case FIQ_NP_SSPLIT_RETRY:
++		case FIQ_NP_IN_CSPLIT_RETRY:
++		case FIQ_NP_OUT_CSPLIT_RETRY:
++			fiq_fsm_restart_channel(state, n, 0);
++			break;
++
++		case FIQ_HS_ISOC_SLEEPING:
++			/* Is it time to wake this channel yet? */
++			if (--state->channel[n].uframe_sleeps == 0) {
++				state->channel[n].fsm = FIQ_HS_ISOC_TURBO;
++				fiq_fsm_restart_channel(state, n, 0);
++			}
++			break;
++
++		case FIQ_PER_SSPLIT_QUEUED:
++			if ((hfnum.b.frnum & 0x7) == 5)
++				break;
++			if(!fiq_fsm_tt_in_use(state, num_channels, n)) {
++				if (!fiq_fsm_too_late(state, n)) {
++					fiq_print(FIQDBG_INT, state, "SOF GO %01d", n);
++					fiq_fsm_restart_channel(state, n, 0);
++					state->channel[n].fsm = FIQ_PER_SSPLIT_STARTED;
++				} else {
++					/* Transaction cannot be started without risking a device babble error */
++					state->channel[n].fsm = FIQ_PER_SPLIT_TIMEOUT;
++					state->haintmsk_saved.b2.chint &= ~(1 << n);
++					FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, 0);
++					kick_irq |= 1;
++				}
++			}
++			break;
++
++		case FIQ_PER_ISO_OUT_PENDING:
++			/* Ordinarily, this should be poked after the SSPLIT
++			 * complete interrupt for a competing transfer on the same
++			 * TT. Doesn't happen for aborted transactions though.
++			 */
++			if ((hfnum.b.frnum & 0x7) >= 5)
++				break;
++			if (!fiq_fsm_tt_in_use(state, num_channels, n)) {
++				/* Hardware bug. SOF can sometimes occur after the channel halt interrupt
++				 * that caused this.
++				 */
++					fiq_fsm_restart_channel(state, n, 0);
++					fiq_print(FIQDBG_INT, state, "SOF ISOC");
++					if (state->channel[n].nrpackets == 1) {
++						state->channel[n].fsm = FIQ_PER_ISO_OUT_LAST;
++					} else {
++						state->channel[n].fsm = FIQ_PER_ISO_OUT_ACTIVE;
++					}
++			}
++			break;
++
++		case FIQ_PER_CSPLIT_WAIT:
++			/* we are guaranteed to be in this state if and only if the SSPLIT interrupt
++			 * occurred when the bus transaction occurred. The SOF interrupt reversal bug
++			 * will utterly bugger this up though.
++			 */
++			if (hfnum.b.frnum != state->channel[n].expected_uframe) {
++				fiq_print(FIQDBG_INT, state, "SOFCS %d ", n);
++				state->channel[n].fsm = FIQ_PER_CSPLIT_POLL;
++				fiq_fsm_restart_channel(state, n, 0);
++				fiq_fsm_start_next_periodic(state, num_channels);
++
++			}
++			break;
++
++		case FIQ_PER_SPLIT_TIMEOUT:
++		case FIQ_DEQUEUE_ISSUED:
++			/* Ugly: we have to force a HCD interrupt.
++			 * Poke the mask for the channel in question.
++			 * We will take a fake SOF because of this, but
++			 * that's OK.
++			 */
++			state->haintmsk_saved.b2.chint &= ~(1 << n);
++			FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, 0);
++			kick_irq |= 1;
++			break;
++
++		default:
++			break;
++		}
++	}
++
++	if (state->kick_np_queues ||
++			dwc_frame_num_le(state->next_sched_frame, hfnum.b.frnum))
++		kick_irq |= 1;
++
++	return !kick_irq;
++}
++
++
++/**
++ * fiq_fsm_do_hcintr() - FSM host channel interrupt handler
++ * @state: Pointer to the FIQ state struct
++ * @num_channels: Number of channels as per hardware config
++ * @n: channel for which HAINT(i) was raised
++ *
++ * An important property is that only the CHHLT interrupt is unmasked. Unfortunately, AHBerr is as well.
++ */
++static int notrace noinline fiq_fsm_do_hcintr(struct fiq_state *state, int num_channels, int n)
++{
++	hcint_data_t hcint;
++	hcintmsk_data_t hcintmsk;
++	hcint_data_t hcint_probe;
++	hcchar_data_t hcchar;
++	int handled = 0;
++	int restart = 0;
++	int last_csplit = 0;
++	int start_next_periodic = 0;
++	struct fiq_channel_state *st = &state->channel[n];
++	hfnum_data_t hfnum;
++
++	hcint.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINT);
++	hcintmsk.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK);
++	hcint_probe.d32 = hcint.d32 & hcintmsk.d32;
++
++	if (st->fsm != FIQ_PASSTHROUGH) {
++		fiq_print(FIQDBG_INT, state, "HC%01d ST%02d", n, st->fsm);
++		fiq_print(FIQDBG_INT, state, "%08x", hcint.d32);
++	}
++
++	switch (st->fsm) {
++
++	case FIQ_PASSTHROUGH:
++	case FIQ_DEQUEUE_ISSUED:
++		/* doesn't belong to us, kick it upstairs */
++		break;
++
++	case FIQ_PASSTHROUGH_ERRORSTATE:
++		/* We are here to emulate the error recovery mechanism of the dwc HCD.
++		 * Several interrupts are unmasked if a previous transaction failed - it's
++		 * death for the FIQ to attempt to handle them as the channel isn't halted.
++		 * Emulate what the HCD does in this situation: mask and continue.
++		 * The FSM has no other state setup so this has to be handled out-of-band.
++		 */
++		fiq_print(FIQDBG_ERR, state, "ERRST %02d", n);
++		if (hcint_probe.b.nak || hcint_probe.b.ack || hcint_probe.b.datatglerr) {
++			fiq_print(FIQDBG_ERR, state, "RESET %02d", n);
++			/* In some random cases we can get a NAK interrupt coincident with a Xacterr
++			 * interrupt, after the device has disappeared.
++			 */
++			if (!hcint.b.xacterr)
++				st->nr_errors = 0;
++			hcintmsk.b.nak = 0;
++			hcintmsk.b.ack = 0;
++			hcintmsk.b.datatglerr = 0;
++			FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINTMSK, hcintmsk.d32);
++			return 1;
++		}
++		if (hcint_probe.b.chhltd) {
++			fiq_print(FIQDBG_ERR, state, "CHHLT %02d", n);
++			fiq_print(FIQDBG_ERR, state, "%08x", hcint.d32);
++			return 0;
++		}
++		break;
++
++	/* Non-periodic state groups */
++	case FIQ_NP_SSPLIT_STARTED:
++	case FIQ_NP_SSPLIT_RETRY:
++		/* Got a HCINT for a NP SSPLIT. Expected ACK / NAK / fail */
++		if (hcint.b.ack) {
++			/* SSPLIT complete. For OUT, the data has been sent. For IN, the LS transaction
++			 * will start shortly. SOF needs to kick the transaction to prevent a NYET flood.
++			 */
++			if(st->hcchar_copy.b.epdir == 1)
++				st->fsm = FIQ_NP_IN_CSPLIT_RETRY;
++			else
++				st->fsm = FIQ_NP_OUT_CSPLIT_RETRY;
++			st->nr_errors = 0;
++			handled = 1;
++			fiq_fsm_setup_csplit(state, n);
++		} else if (hcint.b.nak) {
++			// No buffer space in TT. Retry on a uframe boundary.
++			fiq_fsm_reload_hcdma(state, n);
++			st->fsm = FIQ_NP_SSPLIT_RETRY;
++			handled = 1;
++		} else if (hcint.b.xacterr) {
++			// The only other one we care about is xacterr. This implies HS bus error - retry.
++			st->nr_errors++;
++			if(st->hcchar_copy.b.epdir == 0)
++				fiq_fsm_reload_hcdma(state, n);
++			st->fsm = FIQ_NP_SSPLIT_RETRY;
++			if (st->nr_errors >= 3) {
++				st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++			} else {
++				handled = 1;
++				restart = 1;
++			}
++		} else {
++			st->fsm = FIQ_NP_SPLIT_LS_ABORTED;
++			handled = 0;
++			restart = 0;
++		}
++		break;
++
++	case FIQ_NP_IN_CSPLIT_RETRY:
++		/* Received a CSPLIT done interrupt.
++		 * Expected Data/NAK/STALL/NYET for IN.
++		 */
++		if (hcint.b.xfercomp) {
++			/* For IN, data is present. */
++			st->fsm = FIQ_NP_SPLIT_DONE;
++		} else if (hcint.b.nak) {
++			/* no endpoint data. Punt it upstairs */
++			st->fsm = FIQ_NP_SPLIT_DONE;
++		} else if (hcint.b.nyet) {
++			/* CSPLIT NYET - retry on a uframe boundary. */
++			handled = 1;
++			st->nr_errors = 0;
++		} else if (hcint.b.datatglerr) {
++			/* data toggle errors do not set the xfercomp bit. */
++			st->fsm = FIQ_NP_SPLIT_LS_ABORTED;
++		} else if (hcint.b.xacterr) {
++			/* HS error. Retry immediate */
++			st->fsm = FIQ_NP_IN_CSPLIT_RETRY;
++			st->nr_errors++;
++			if (st->nr_errors >= 3) {
++				st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++			} else {
++				handled = 1;
++				restart = 1;
++			}
++		} else if (hcint.b.stall || hcint.b.bblerr) {
++			/* A STALL implies either a LS bus error or a genuine STALL. */
++			st->fsm = FIQ_NP_SPLIT_LS_ABORTED;
++		} else {
++			/*  Hardware bug. It's possible in some cases to
++			 *  get a channel halt with nothing else set when
++			 *  the response was a NYET. Treat as local 3-strikes retry.
++			 */
++			hcint_data_t hcint_test = hcint;
++			hcint_test.b.chhltd = 0;
++			if (!hcint_test.d32) {
++				st->nr_errors++;
++				if (st->nr_errors >= 3) {
++					st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++				} else {
++					handled = 1;
++				}
++			} else {
++				/* Bail out if something unexpected happened */
++				st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++			}
++		}
++		if (st->fsm != FIQ_NP_IN_CSPLIT_RETRY) {
++			fiq_fsm_restart_np_pending(state, num_channels, n);
++		}
++		break;
++
++	case FIQ_NP_OUT_CSPLIT_RETRY:
++		/* Received a CSPLIT done interrupt.
++		 * Expected ACK/NAK/STALL/NYET/XFERCOMP for OUT.*/
++		if (hcint.b.xfercomp) {
++			st->fsm = FIQ_NP_SPLIT_DONE;
++		} else if (hcint.b.nak) {
++			// The HCD will implement the holdoff on frame boundaries.
++			st->fsm = FIQ_NP_SPLIT_DONE;
++		} else if (hcint.b.nyet) {
++			// Hub still processing.
++			st->fsm = FIQ_NP_OUT_CSPLIT_RETRY;
++			handled = 1;
++			st->nr_errors = 0;
++			//restart = 1;
++		} else if (hcint.b.xacterr) {
++			/* HS error. retry immediate */
++			st->fsm = FIQ_NP_OUT_CSPLIT_RETRY;
++			st->nr_errors++;
++			if (st->nr_errors >= 3) {
++				st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++			} else {
++				handled = 1;
++				restart = 1;
++			}
++		} else if (hcint.b.stall) {
++			/* LS bus error or genuine stall */
++			st->fsm = FIQ_NP_SPLIT_LS_ABORTED;
++		} else {
++			/*
++			 * Hardware bug. It's possible in some cases to get a
++			 * channel halt with nothing else set when the response was a NYET.
++			 * Treat as local 3-strikes retry.
++			 */
++			hcint_data_t hcint_test = hcint;
++			hcint_test.b.chhltd = 0;
++			if (!hcint_test.d32) {
++				st->nr_errors++;
++				if (st->nr_errors >= 3) {
++					st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++				} else {
++					handled = 1;
++				}
++			} else {
++				// Something unexpected happened. AHBerror or babble perhaps. Let the IRQ deal with it.
++				st->fsm = FIQ_NP_SPLIT_HS_ABORTED;
++			}
++		}
++		if (st->fsm != FIQ_NP_OUT_CSPLIT_RETRY) {
++			fiq_fsm_restart_np_pending(state, num_channels, n);
++		}
++		break;
++
++	/* Periodic split states (except isoc out) */
++	case FIQ_PER_SSPLIT_STARTED:
++		/* Expect an ACK or failure for SSPLIT */
++		if (hcint.b.ack) {
++			/*
++			 * SSPLIT transfer complete interrupt - the generation of this interrupt is fraught with bugs.
++			 * For a packet queued in microframe n-3 to appear in n-2, if the channel is enabled near the EOF1
++			 * point for microframe n-3, the packet will not appear on the bus until microframe n.
++			 * Additionally, the generation of the actual interrupt is dodgy. For a packet appearing on the bus
++			 * in microframe n, sometimes the interrupt is generated immediately. Sometimes, it appears in n+1
++			 * coincident with SOF for n+1.
++			 * SOF is also buggy. It can sometimes be raised AFTER the first bus transaction has taken place.
++			 * These appear to be caused by timing/clock crossing bugs within the core itself.
++			 * State machine workaround.
++			 */
++			hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM);
++			hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR);
++			fiq_fsm_setup_csplit(state, n);
++			/* Poke the oddfrm bit. If we are equivalent, we received the interrupt at the correct
++			 * time. If not, then we're in the next SOF.
++			 */
++			if ((hfnum.b.frnum & 0x1) == hcchar.b.oddfrm) {
++				fiq_print(FIQDBG_INT, state, "CSWAIT %01d", n);
++				st->expected_uframe = hfnum.b.frnum;
++				st->fsm = FIQ_PER_CSPLIT_WAIT;
++			} else {
++				fiq_print(FIQDBG_INT, state, "CSPOL  %01d", n);
++				/* For isochronous IN endpoints,
++				 * we need to hold off if we are expecting a lot of data */
++				if (st->hcchar_copy.b.mps < DATA0_PID_HEURISTIC) {
++					start_next_periodic = 1;
++				}
++				/* Danger will robinson: we are in a broken state. If our first interrupt after
++				 * this is a NYET, it will be delayed by 1 uframe and result in an unrecoverable
++				 * lag. Unmask the NYET interrupt.
++				 */
++				st->expected_uframe = (hfnum.b.frnum + 1) & 0x3FFF;
++				st->fsm = FIQ_PER_CSPLIT_BROKEN_NYET1;
++				restart = 1;
++			}
++			handled = 1;
++		} else if (hcint.b.xacterr) {
++			/* 3-strikes retry is enabled, we have hit our max nr_errors */
++			st->fsm = FIQ_PER_SPLIT_HS_ABORTED;
++			start_next_periodic = 1;
++		} else {
++			st->fsm = FIQ_PER_SPLIT_HS_ABORTED;
++			start_next_periodic = 1;
++		}
++		/* We can now queue the next isochronous OUT transaction, if one is pending. */
++		if(fiq_fsm_tt_next_isoc(state, num_channels, n)) {
++			fiq_print(FIQDBG_INT, state, "NEXTISO ");
++		}
++		break;
++
++	case FIQ_PER_CSPLIT_NYET1:
++		/* First CSPLIT attempt was a NYET. If we get a subsequent NYET,
++		 * we are too late and the TT has dropped its CSPLIT fifo.
++		 */
++		hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM);
++		hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR);
++		start_next_periodic = 1;
++		if (hcint.b.nak) {
++			st->fsm = FIQ_PER_SPLIT_DONE;
++		} else if (hcint.b.xfercomp) {
++			fiq_increment_dma_buf(state, num_channels, n);
++			st->fsm = FIQ_PER_CSPLIT_POLL;
++			st->nr_errors = 0;
++			if (fiq_fsm_more_csplits(state, n, &last_csplit)) {
++				handled = 1;
++				restart = 1;
++				if (!last_csplit)
++					start_next_periodic = 0;
++			} else {
++				st->fsm = FIQ_PER_SPLIT_DONE;
++			}
++		} else if (hcint.b.nyet) {
++			/* Doh. Data lost. */
++			st->fsm = FIQ_PER_SPLIT_NYET_ABORTED;
++		} else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) {
++			st->fsm = FIQ_PER_SPLIT_LS_ABORTED;
++		} else {
++			st->fsm = FIQ_PER_SPLIT_HS_ABORTED;
++		}
++		break;
++
++	case FIQ_PER_CSPLIT_BROKEN_NYET1:
++		/*
++		 * we got here because our host channel is in the delayed-interrupt
++		 * state and we cannot take a NYET interrupt any later than when it
++		 * occurred. Disable then re-enable the channel if this happens to force
++		 * CSPLITs to occur at the right time.
++		 */
++		hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM);
++		hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR);
++		fiq_print(FIQDBG_INT, state, "BROK: %01d ", n);
++		if (hcint.b.nak) {
++			st->fsm = FIQ_PER_SPLIT_DONE;
++			start_next_periodic = 1;
++		} else if (hcint.b.xfercomp) {
++			fiq_increment_dma_buf(state, num_channels, n);
++			if (fiq_fsm_more_csplits(state, n, &last_csplit)) {
++				st->fsm = FIQ_PER_CSPLIT_POLL;
++				handled = 1;
++				restart = 1;
++				start_next_periodic = 1;
++				/* Reload HCTSIZ for the next transfer */
++				fiq_fsm_reload_hctsiz(state, n);
++				if (!last_csplit)
++					start_next_periodic = 0;
++			} else {
++				st->fsm = FIQ_PER_SPLIT_DONE;
++			}
++		} else if (hcint.b.nyet) {
++			st->fsm = FIQ_PER_SPLIT_NYET_ABORTED;
++			start_next_periodic = 1;
++		} else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) {
++			/* Local 3-strikes retry is handled by the core. This is a ERR response.*/
++			st->fsm = FIQ_PER_SPLIT_LS_ABORTED;
++		} else {
++			st->fsm = FIQ_PER_SPLIT_HS_ABORTED;
++		}
++		break;
++
++	case FIQ_PER_CSPLIT_POLL:
++		hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM);
++		hcchar.d32 = FIQ_READ(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCCHAR);
++		start_next_periodic = 1;
++		if (hcint.b.nak) {
++			st->fsm = FIQ_PER_SPLIT_DONE;
++		} else if (hcint.b.xfercomp) {
++			fiq_increment_dma_buf(state, num_channels, n);
++			if (fiq_fsm_more_csplits(state, n, &last_csplit)) {
++				handled = 1;
++				restart = 1;
++				/* Reload HCTSIZ for the next transfer */
++				fiq_fsm_reload_hctsiz(state, n);
++				if (!last_csplit)
++					start_next_periodic = 0;
++			} else {
++				st->fsm = FIQ_PER_SPLIT_DONE;
++			}
++		} else if (hcint.b.nyet) {
++			/* Are we a NYET after the first data packet? */
++			if (st->nrpackets == 0) {
++				st->fsm = FIQ_PER_CSPLIT_NYET1;
++				handled = 1;
++				restart = 1;
++			} else {
++				/* We got a NYET when polling CSPLITs. Can happen
++				 * if our heuristic fails, or if someone disables us
++				 * for any significant length of time.
++				 */
++				if (st->nr_errors >= 3) {
++					st->fsm = FIQ_PER_SPLIT_NYET_ABORTED;
++				} else {
++					st->fsm = FIQ_PER_SPLIT_DONE;
++				}
++			}
++		} else if (hcint.b.xacterr || hcint.b.stall || hcint.b.bblerr) {
++			/* For xacterr, Local 3-strikes retry is handled by the core. This is a ERR response.*/
++			st->fsm = FIQ_PER_SPLIT_LS_ABORTED;
++		} else {
++			st->fsm = FIQ_PER_SPLIT_HS_ABORTED;
++		}
++		break;
++
++	case FIQ_HS_ISOC_TURBO:
++		if (fiq_fsm_update_hs_isoc(state, n, hcint)) {
++			/* more transactions to come */
++			handled = 1;
++			fiq_print(FIQDBG_INT, state, "HSISO M ");
++			/* For strided transfers, put ourselves to sleep */
++			if (st->hs_isoc_info.stride > 1) {
++				st->uframe_sleeps = st->hs_isoc_info.stride - 1;
++				st->fsm = FIQ_HS_ISOC_SLEEPING;
++			} else {
++				restart = 1;
++			}
++		} else {
++			st->fsm = FIQ_HS_ISOC_DONE;
++			fiq_print(FIQDBG_INT, state, "HSISO F ");
++		}
++		break;
++
++	case FIQ_HS_ISOC_ABORTED:
++		/* This abort is called by the driver rewriting the state mid-transaction
++		 * which allows the dequeue mechanism to work more effectively.
++		 */
++		break;
++
++	case FIQ_PER_ISO_OUT_ACTIVE:
++		if (hcint.b.ack) {
++			if(fiq_iso_out_advance(state, num_channels, n)) {
++				/* last OUT transfer */
++				st->fsm = FIQ_PER_ISO_OUT_LAST;
++				/*
++				 * Assuming the periodic FIFO in the dwc core
++				 * actually does its job properly, we can queue
++				 * the next ssplit now and in theory, the wire
++				 * transactions will be in-order.
++				 */
++				// No it doesn't. It appears to process requests in host channel order.
++				//start_next_periodic = 1;
++			}
++			handled = 1;
++			restart = 1;
++		} else {
++			/*
++			 * Isochronous transactions carry on regardless. Log the error
++			 * and continue.
++			 */
++			//explode += 1;
++			st->nr_errors++;
++			if(fiq_iso_out_advance(state, num_channels, n)) {
++				st->fsm = FIQ_PER_ISO_OUT_LAST;
++				//start_next_periodic = 1;
++			}
++			handled = 1;
++			restart = 1;
++		}
++		break;
++
++	case FIQ_PER_ISO_OUT_LAST:
++		if (hcint.b.ack) {
++			/* All done here */
++			st->fsm = FIQ_PER_ISO_OUT_DONE;
++		} else {
++			st->fsm = FIQ_PER_ISO_OUT_DONE;
++			st->nr_errors++;
++		}
++		start_next_periodic = 1;
++		break;
++
++	case FIQ_PER_SPLIT_TIMEOUT:
++		/* SOF kicked us because we overran. */
++		start_next_periodic = 1;
++		break;
++
++	default:
++		break;
++	}
++
++	if (handled) {
++		FIQ_WRITE(state->dwc_regs_base + HC_START + (HC_OFFSET * n) + HCINT, hcint.d32);
++	} else {
++		/* Copy the regs into the state so the IRQ knows what to do */
++		st->hcint_copy.d32 = hcint.d32;
++	}
++
++	if (restart) {
++		/* Restart always implies handled. */
++		if (restart == 2) {
++			/* For complete-split INs, the show must go on.
++			 * Force a channel restart */
++			fiq_fsm_restart_channel(state, n, 1);
++		} else {
++			fiq_fsm_restart_channel(state, n, 0);
++		}
++	}
++	if (start_next_periodic) {
++		fiq_fsm_start_next_periodic(state, num_channels);
++	}
++	if (st->fsm != FIQ_PASSTHROUGH)
++		fiq_print(FIQDBG_INT, state, "FSMOUT%02d", st->fsm);
++
++	return handled;
++}
++
++
++/**
++ * dwc_otg_fiq_fsm() - Flying State Machine (monster) FIQ
++ * @state:		pointer to state struct passed from the banked FIQ mode registers.
++ * @num_channels:	set according to the DWC hardware configuration
++ * @dma:		pointer to DMA bounce buffers for split transaction slots
++ *
++ * The FSM FIQ performs the low-level tasks that normally would be performed by the microcode
++ * inside an EHCI or similar host controller regarding split transactions. The DWC core
++ * interrupts each and every time a split transaction packet is received or sent successfully.
++ * This results in either an interrupt storm when everything is working "properly", or
++ * the interrupt latency of the system in general breaks time-sensitive periodic split
++ * transactions. Pushing the low-level, but relatively easy state machine work into the FIQ
++ * solves these problems.
++ *
++ * Return: void
++ */
++void notrace dwc_otg_fiq_fsm(struct fiq_state *state, int num_channels)
++{
++	gintsts_data_t gintsts, gintsts_handled;
++	gintmsk_data_t gintmsk;
++	//hfnum_data_t hfnum;
++	haint_data_t haint, haint_handled;
++	haintmsk_data_t haintmsk;
++	int kick_irq = 0;
++
++	/* Ensure peripheral reads issued prior to FIQ entry are complete */
++	dsb(sy);
++
++	gintsts_handled.d32 = 0;
++	haint_handled.d32 = 0;
++
++	fiq_fsm_spin_lock(&state->lock);
++	gintsts.d32 = FIQ_READ(state->dwc_regs_base + GINTSTS);
++	gintmsk.d32 = FIQ_READ(state->dwc_regs_base + GINTMSK);
++	gintsts.d32 &= gintmsk.d32;
++
++	if (gintsts.b.sofintr) {
++		/* For FSM mode, SOF is required to keep the state machine advance for
++		 * certain stages of the periodic pipeline. It's death to mask this
++		 * interrupt in that case.
++		 */
++
++		if (!fiq_fsm_do_sof(state, num_channels)) {
++			/* Kick IRQ once. Queue advancement means that all pending transactions
++			 * will get serviced when the IRQ finally executes.
++			 */
++			if (state->gintmsk_saved.b.sofintr == 1)
++				kick_irq |= 1;
++			state->gintmsk_saved.b.sofintr = 0;
++		}
++		gintsts_handled.b.sofintr = 1;
++	}
++
++	if (gintsts.b.hcintr) {
++		int i;
++		haint.d32 = FIQ_READ(state->dwc_regs_base + HAINT);
++		haintmsk.d32 = FIQ_READ(state->dwc_regs_base + HAINTMSK);
++		haint.d32 &= haintmsk.d32;
++		haint_handled.d32 = 0;
++		for (i=0; i<num_channels; i++) {
++			if (haint.b2.chint & (1 << i)) {
++				if(!fiq_fsm_do_hcintr(state, num_channels, i)) {
++					/* HCINT was not handled in FIQ
++					 * HAINT is level-sensitive, leading to level-sensitive ginststs.b.hcint bit.
++					 * Mask HAINT(i) but keep top-level hcint unmasked.
++					 */
++					state->haintmsk_saved.b2.chint &= ~(1 << i);
++				} else {
++					/* do_hcintr cleaned up after itself, but clear haint */
++					haint_handled.b2.chint |= (1 << i);
++				}
++			}
++		}
++
++		if (haint_handled.b2.chint) {
++			FIQ_WRITE(state->dwc_regs_base + HAINT, haint_handled.d32);
++		}
++
++		if (haintmsk.d32 != (haintmsk.d32 & state->haintmsk_saved.d32)) {
++			/*
++			 * This is necessary to avoid multiple retriggers of the MPHI in the case
++			 * where interrupts are held off and HCINTs start to pile up.
++			 * Only wake up the IRQ if a new interrupt came in, was not handled and was
++			 * masked.
++			 */
++			haintmsk.d32 &= state->haintmsk_saved.d32;
++			FIQ_WRITE(state->dwc_regs_base + HAINTMSK, haintmsk.d32);
++			kick_irq |= 1;
++		}
++		/* Top-Level interrupt - always handled because it's level-sensitive */
++		gintsts_handled.b.hcintr = 1;
++	}
++
++
++	/* Clear the bits in the saved register that were not handled but were triggered. */
++	state->gintmsk_saved.d32 &= ~(gintsts.d32 & ~gintsts_handled.d32);
++
++	/* FIQ didn't handle something - mask has changed - write new mask */
++	if (gintmsk.d32 != (gintmsk.d32 & state->gintmsk_saved.d32)) {
++		gintmsk.d32 &= state->gintmsk_saved.d32;
++		gintmsk.b.sofintr = 1;
++		FIQ_WRITE(state->dwc_regs_base + GINTMSK, gintmsk.d32);
++//		fiq_print(FIQDBG_INT, state, "KICKGINT");
++//		fiq_print(FIQDBG_INT, state, "%08x", gintmsk.d32);
++//		fiq_print(FIQDBG_INT, state, "%08x", state->gintmsk_saved.d32);
++		kick_irq |= 1;
++	}
++
++	if (gintsts_handled.d32) {
++		/* Only applies to edge-sensitive bits in GINTSTS */
++		FIQ_WRITE(state->dwc_regs_base + GINTSTS, gintsts_handled.d32);
++	}
++
++	/* We got an interrupt, didn't handle it. */
++	if (kick_irq) {
++		state->mphi_int_count++;
++		if (state->mphi_regs.swirq_set) {
++			FIQ_WRITE(state->mphi_regs.swirq_set, 1);
++		} else {
++			FIQ_WRITE(state->mphi_regs.outdda, state->dummy_send_dma);
++			FIQ_WRITE(state->mphi_regs.outddb, (1<<29));
++		}
++
++	}
++	state->fiq_done++;
++	mb();
++	fiq_fsm_spin_unlock(&state->lock);
++}
++
++
++/**
++ * dwc_otg_fiq_nop() - FIQ "lite"
++ * @state:	pointer to state struct passed from the banked FIQ mode registers.
++ *
++ * The "nop" handler does not intervene on any interrupts other than SOF.
++ * It is limited in scope to deciding at each SOF if the IRQ SOF handler (which deals
++ * with non-periodic/periodic queues) needs to be kicked.
++ *
++ * This is done to hold off the SOF interrupt, which occurs at a rate of 8000 per second.
++ *
++ * Return: void
++ */
++void notrace dwc_otg_fiq_nop(struct fiq_state *state)
++{
++	gintsts_data_t gintsts, gintsts_handled;
++	gintmsk_data_t gintmsk;
++	hfnum_data_t hfnum;
++
++	/* Ensure peripheral reads issued prior to FIQ entry are complete */
++	dsb(sy);
++
++	fiq_fsm_spin_lock(&state->lock);
++	hfnum.d32 = FIQ_READ(state->dwc_regs_base + HFNUM);
++	gintsts.d32 = FIQ_READ(state->dwc_regs_base + GINTSTS);
++	gintmsk.d32 = FIQ_READ(state->dwc_regs_base + GINTMSK);
++	gintsts.d32 &= gintmsk.d32;
++	gintsts_handled.d32 = 0;
++
++	if (gintsts.b.sofintr) {
++		if (!state->kick_np_queues &&
++				dwc_frame_num_gt(state->next_sched_frame, hfnum.b.frnum)) {
++			/* SOF handled, no work to do, just ACK interrupt */
++			gintsts_handled.b.sofintr = 1;
++		} else {
++			/* Kick IRQ */
++			state->gintmsk_saved.b.sofintr = 0;
++		}
++	}
++
++	/* Reset handled interrupts */
++	if(gintsts_handled.d32) {
++		FIQ_WRITE(state->dwc_regs_base + GINTSTS, gintsts_handled.d32);
++	}
++
++	/* Clear the bits in the saved register that were not handled but were triggered. */
++	state->gintmsk_saved.d32 &= ~(gintsts.d32 & ~gintsts_handled.d32);
++
++	/* We got an interrupt, didn't handle it and want to mask it */
++	if (~(state->gintmsk_saved.d32)) {
++		state->mphi_int_count++;
++		gintmsk.d32 &= state->gintmsk_saved.d32;
++		FIQ_WRITE(state->dwc_regs_base + GINTMSK, gintmsk.d32);
++		if (state->mphi_regs.swirq_set) {
++			FIQ_WRITE(state->mphi_regs.swirq_set, 1);
++		} else {
++			/* Force a clear before another dummy send */
++			FIQ_WRITE(state->mphi_regs.intstat, (1<<29));
++			FIQ_WRITE(state->mphi_regs.outdda, state->dummy_send_dma);
++			FIQ_WRITE(state->mphi_regs.outddb, (1<<29));
++		}
++	}
++	state->fiq_done++;
++	mb();
++	fiq_fsm_spin_unlock(&state->lock);
++}
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h
+@@ -0,0 +1,399 @@
++/*
++ * dwc_otg_fiq_fsm.h - Finite state machine FIQ header definitions
++ *
++ * Copyright (c) 2013 Raspberry Pi Foundation
++ *
++ * Author: Jonathan Bell <jonathan@raspberrypi.org>
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions are met:
++ *	* Redistributions of source code must retain the above copyright
++ *	  notice, this list of conditions and the following disclaimer.
++ *	* Redistributions in binary form must reproduce the above copyright
++ *	  notice, this list of conditions and the following disclaimer in the
++ *	  documentation and/or other materials provided with the distribution.
++ *	* Neither the name of Raspberry Pi nor the
++ *	  names of its contributors may be used to endorse or promote products
++ *	  derived from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
++ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ * This FIQ implements functionality that performs split transactions on
++ * the dwc_otg hardware without any outside intervention. A split transaction
++ * is "queued" by nominating a specific host channel to perform the entirety
++ * of a split transaction. This FIQ will then perform the microframe-precise
++ * scheduling required in each phase of the transaction until completion.
++ *
++ * The FIQ functionality has been surgically implanted into the Synopsys
++ * vendor-provided driver.
++ *
++ */
++
++#ifndef DWC_OTG_FIQ_FSM_H_
++#define DWC_OTG_FIQ_FSM_H_
++
++#include "dwc_otg_regs.h"
++#include "dwc_otg_cil.h"
++#include "dwc_otg_hcd.h"
++#include <linux/kernel.h>
++#include <linux/irqflags.h>
++#include <linux/string.h>
++#include <asm/barrier.h>
++
++#if 0
++#define FLAME_ON(x)					\
++do {							\
++	int gpioreg;                                    \
++							\
++	gpioreg = readl(__io_address(0x20200000+0x8));	\
++	gpioreg &= ~(7 << (x-20)*3);			\
++	gpioreg |= 0x1 << (x-20)*3;			\
++	writel(gpioreg, __io_address(0x20200000+0x8));	\
++							\
++	writel(1<<x, __io_address(0x20200000+(0x1C)));	\
++} while (0)
++
++#define FLAME_OFF(x)					\
++do {							\
++	writel(1<<x, __io_address(0x20200000+(0x28)));	\
++} while (0)
++#else
++#define FLAME_ON(x) do { } while (0)
++#define FLAME_OFF(X) do { } while (0)
++#endif
++
++/* This is a quick-and-dirty arch-specific register read/write. We know that
++ * writes to a peripheral on BCM2835 will always arrive in-order, also that
++ * reads and writes are executed in-order therefore the need for memory barriers
++ * is obviated if we're only talking to USB.
++ */
++#define FIQ_WRITE(_addr_,_data_) (*(volatile unsigned int *) (_addr_) = (_data_))
++#define FIQ_READ(_addr_) (*(volatile unsigned int *) (_addr_))
++
++/* FIQ-ified register definitions. Offsets are from dwc_regs_base. */
++#define GINTSTS		0x014
++#define GINTMSK		0x018
++/* Debug register. Poll the top of the received packets FIFO. */
++#define GRXSTSR		0x01C
++#define HFNUM		0x408
++#define HAINT		0x414
++#define HAINTMSK	0x418
++#define HPRT0		0x440
++
++/* HC_regs start from an offset of 0x500 */
++#define HC_START	0x500
++#define HC_OFFSET	0x020
++
++#define HC_DMA		0x14
++
++#define HCCHAR		0x00
++#define HCSPLT		0x04
++#define HCINT		0x08
++#define HCINTMSK	0x0C
++#define HCTSIZ		0x10
++
++#define ISOC_XACTPOS_ALL 	0b11
++#define ISOC_XACTPOS_BEGIN	0b10
++#define ISOC_XACTPOS_MID	0b00
++#define ISOC_XACTPOS_END	0b01
++
++#define DWC_PID_DATA2	0b01
++#define DWC_PID_MDATA	0b11
++#define DWC_PID_DATA1	0b10
++#define DWC_PID_DATA0	0b00
++
++typedef struct {
++	volatile void* base;
++	volatile void* ctrl;
++	volatile void* outdda;
++	volatile void* outddb;
++	volatile void* intstat;
++	volatile void* swirq_set;
++	volatile void* swirq_clr;
++} mphi_regs_t;
++
++enum fiq_debug_level {
++	FIQDBG_SCHED = (1 << 0),
++	FIQDBG_INT   = (1 << 1),
++	FIQDBG_ERR   = (1 << 2),
++	FIQDBG_PORTHUB = (1 << 3),
++};
++
++#ifdef CONFIG_ARM64
++
++typedef spinlock_t fiq_lock_t;
++
++#else
++
++typedef struct {
++	union {
++		uint32_t slock;
++		struct _tickets {
++			uint16_t owner;
++			uint16_t next;
++		} tickets;
++	};
++} fiq_lock_t;
++
++#endif
++
++struct fiq_state;
++
++extern void _fiq_print (enum fiq_debug_level dbg_lvl, volatile struct fiq_state *state, char *fmt, ...);
++#if 0
++#define fiq_print _fiq_print
++#else
++#define fiq_print(x, y, ...)
++#endif
++
++extern bool fiq_enable, fiq_fsm_enable;
++extern ushort nak_holdoff;
++
++/**
++ * enum fiq_fsm_state - The FIQ FSM states.
++ *
++ * This is the "core" of the FIQ FSM. Broadly, the FSM states follow the
++ * USB2.0 specification for host responses to various transaction states.
++ * There are modifications to this host state machine because of a variety of
++ * quirks and limitations in the dwc_otg hardware.
++ *
++ * The fsm state is also used to communicate back to the driver on completion of
++ * a split transaction. The end states are used in conjunction with the interrupts
++ * raised by the final transaction.
++ */
++enum fiq_fsm_state {
++	/* FIQ isn't enabled for this host channel */
++	FIQ_PASSTHROUGH = 0,
++	/* For the first interrupt received for this channel,
++	 * the FIQ has to ack any interrupts indicating success. */
++	FIQ_PASSTHROUGH_ERRORSTATE = 31,
++	/* Nonperiodic state groups */
++	FIQ_NP_SSPLIT_STARTED = 1,
++	FIQ_NP_SSPLIT_RETRY = 2,
++	/* TT contention - working around hub bugs */
++	FIQ_NP_SSPLIT_PENDING = 33,
++	FIQ_NP_OUT_CSPLIT_RETRY = 3,
++	FIQ_NP_IN_CSPLIT_RETRY = 4,
++	FIQ_NP_SPLIT_DONE = 5,
++	FIQ_NP_SPLIT_LS_ABORTED = 6,
++	/* This differentiates a HS transaction error from a LS one
++	 * (handling the hub state is different) */
++	FIQ_NP_SPLIT_HS_ABORTED = 7,
++
++	/* Periodic state groups */
++	/* Periodic transactions are either started directly by the IRQ handler
++	 * or deferred if the TT is already in use.
++	 */
++	FIQ_PER_SSPLIT_QUEUED = 8,
++	FIQ_PER_SSPLIT_STARTED = 9,
++	FIQ_PER_SSPLIT_LAST = 10,
++
++
++	FIQ_PER_ISO_OUT_PENDING = 11,
++	FIQ_PER_ISO_OUT_ACTIVE = 12,
++	FIQ_PER_ISO_OUT_LAST = 13,
++	FIQ_PER_ISO_OUT_DONE = 27,
++
++	FIQ_PER_CSPLIT_WAIT = 14,
++	FIQ_PER_CSPLIT_NYET1 = 15,
++	FIQ_PER_CSPLIT_BROKEN_NYET1 = 28,
++	FIQ_PER_CSPLIT_NYET_FAFF = 29,
++	/* For multiple CSPLITs (large isoc IN, or delayed interrupt) */
++	FIQ_PER_CSPLIT_POLL = 16,
++	/* The last CSPLIT for a transaction has been issued, differentiates
++	 * for the state machine to queue the next packet.
++	 */
++	FIQ_PER_CSPLIT_LAST = 17,
++
++	FIQ_PER_SPLIT_DONE = 18,
++	FIQ_PER_SPLIT_LS_ABORTED = 19,
++	FIQ_PER_SPLIT_HS_ABORTED = 20,
++	FIQ_PER_SPLIT_NYET_ABORTED = 21,
++	/* Frame rollover has occurred without the transaction finishing. */
++	FIQ_PER_SPLIT_TIMEOUT = 22,
++
++	/* FIQ-accelerated HS Isochronous state groups */
++	FIQ_HS_ISOC_TURBO = 23,
++	/* For interval > 1, SOF wakes up the isochronous FSM */
++	FIQ_HS_ISOC_SLEEPING = 24,
++	FIQ_HS_ISOC_DONE = 25,
++	FIQ_HS_ISOC_ABORTED = 26,
++	FIQ_DEQUEUE_ISSUED = 30,
++	FIQ_TEST = 32,
++};
++
++struct fiq_stack {
++	int magic1;
++	uint8_t stack[2048];
++	int magic2;
++};
++
++
++/**
++ * struct fiq_dma_info - DMA bounce buffer utilisation information (per-channel)
++ * @index:	Number of slots reported used for IN transactions / number of slots
++ *			transmitted for an OUT transaction
++ * @slot_len[6]: Number of actual transfer bytes in each slot (255 if unused)
++ *
++ * Split transaction transfers can have variable length depending on other bus
++ * traffic. The OTG core DMA engine requires 4-byte aligned addresses therefore
++ * each transaction needs a guaranteed aligned address. A maximum of 6 split transfers
++ * can happen per-frame.
++ */
++struct fiq_dma_info {
++	u8 index;
++	u8 slot_len[6];
++};
++
++struct __attribute__((packed)) fiq_split_dma_slot {
++	u8 buf[188];
++};
++
++struct fiq_dma_channel {
++	struct __attribute__((packed)) fiq_split_dma_slot index[6];
++};
++
++struct fiq_dma_blob {
++	struct __attribute__((packed)) fiq_dma_channel channel[0];
++};
++
++/**
++ * struct fiq_hs_isoc_info - USB2.0 isochronous data
++ * @iso_frame:	Pointer to the array of OTG URB iso_frame_descs.
++ * @nrframes:	Total length of iso_frame_desc array
++ * @index:	Current index (FIQ-maintained)
++ * @stride:	Interval in uframes between HS isoc transactions
++ */
++struct fiq_hs_isoc_info {
++	struct dwc_otg_hcd_iso_packet_desc *iso_desc;
++	unsigned int nrframes;
++	unsigned int index;
++	unsigned int stride;
++};
++
++/**
++ * struct fiq_channel_state - FIQ state machine storage
++ * @fsm:	Current state of the channel as understood by the FIQ
++ * @nr_errors:	Number of transaction errors on this split-transaction
++ * @hub_addr:   SSPLIT/CSPLIT destination hub
++ * @port_addr:  SSPLIT/CSPLIT destination port - always 1 if single TT hub
++ * @nrpackets:  For isoc OUT, the number of split-OUT packets to transmit. For
++ * 		split-IN, number of CSPLIT data packets that were received.
++ * @hcchar_copy:
++ * @hcsplt_copy:
++ * @hcintmsk_copy:
++ * @hctsiz_copy:	Copies of the host channel registers.
++ * 			For use as scratch, or for returning state.
++ *
++ * The fiq_channel_state is state storage between interrupts for a host channel. The
++ * FSM state is stored here. Members of this structure must only be set up by the
++ * driver prior to enabling the FIQ for this host channel, and not touched until the FIQ
++ * has updated the state to either a COMPLETE state group or ABORT state group.
++ */
++
++struct fiq_channel_state {
++	enum fiq_fsm_state fsm;
++	unsigned int nr_errors;
++	unsigned int hub_addr;
++	unsigned int port_addr;
++	/* Hardware bug workaround: sometimes channel halt interrupts are
++	 * delayed until the next SOF. Keep track of when we expected to get interrupted. */
++	unsigned int expected_uframe;
++	/* number of uframes remaining (for interval > 1 HS isoc transfers) before next transfer */
++	unsigned int uframe_sleeps;
++	/* in/out for communicating number of dma buffers used, or number of ISOC to do */
++	unsigned int nrpackets;
++	struct fiq_dma_info dma_info;
++	struct fiq_hs_isoc_info hs_isoc_info;
++	/* Copies of HC registers - in/out communication from/to IRQ handler
++	 * and for ease of channel setup. A bit of mungeing is performed - for
++	 * example the hctsiz.b.maxp is _always_ the max packet size of the endpoint.
++	 */
++	hcchar_data_t hcchar_copy;
++	hcsplt_data_t hcsplt_copy;
++	hcint_data_t hcint_copy;
++	hcintmsk_data_t hcintmsk_copy;
++	hctsiz_data_t hctsiz_copy;
++	hcdma_data_t hcdma_copy;
++};
++
++/**
++ * struct fiq_state - top-level FIQ state machine storage
++ * @mphi_regs:		virtual address of the MPHI peripheral register file
++ * @dwc_regs_base:	virtual address of the base of the DWC core register file
++ * @dma_base:		physical address for the base of the DMA bounce buffers
++ * @dummy_send:		Scratch area for sending a fake message to the MPHI peripheral
++ * @gintmsk_saved:	Top-level mask of interrupts that the FIQ has not handled.
++ * 			Used for determining which interrupts fired to set off the IRQ handler.
++ * @haintmsk_saved:	Mask of interrupts from host channels that the FIQ did not handle internally.
++ * @np_count:		Non-periodic transactions in the active queue
++ * @np_sent:		Count of non-periodic transactions that have completed
++ * @next_sched_frame:	For periodic transactions handled by the driver's SOF-driven queuing mechanism,
++ * 			this is the next frame on which a SOF interrupt is required. Used to hold off
++ * 			passing SOF through to the driver until necessary.
++ * @channel[n]:		Per-channel FIQ state. Allocated during init depending on the number of host
++ * 			channels configured into the core logic.
++ *
++ * This is passed as the first argument to the dwc_otg_fiq_fsm top-level FIQ handler from the asm stub.
++ * It contains top-level state information.
++ */
++struct fiq_state {
++	fiq_lock_t lock;
++	mphi_regs_t mphi_regs;
++	void *dwc_regs_base;
++	dma_addr_t dma_base;
++	struct fiq_dma_blob *fiq_dmab;
++	void *dummy_send;
++	dma_addr_t dummy_send_dma;
++	gintmsk_data_t gintmsk_saved;
++	haintmsk_data_t haintmsk_saved;
++	int mphi_int_count;
++	unsigned int fiq_done;
++	unsigned int kick_np_queues;
++	unsigned int next_sched_frame;
++#ifdef FIQ_DEBUG
++	char * buffer;
++	unsigned int bufsiz;
++#endif
++	struct fiq_channel_state channel[0];
++};
++
++#ifdef CONFIG_ARM64
++
++#ifdef local_fiq_enable
++#undef local_fiq_enable
++#endif
++
++#ifdef local_fiq_disable
++#undef local_fiq_disable
++#endif
++
++extern void local_fiq_enable(void);
++
++extern void local_fiq_disable(void);
++
++#endif
++
++extern void fiq_fsm_spin_lock(fiq_lock_t *lock);
++
++extern void fiq_fsm_spin_unlock(fiq_lock_t *lock);
++
++extern int fiq_fsm_too_late(struct fiq_state *st, int n);
++
++extern int fiq_fsm_tt_in_use(struct fiq_state *st, int num_channels, int n);
++
++extern void dwc_otg_fiq_fsm(struct fiq_state *state, int num_channels);
++
++extern void dwc_otg_fiq_nop(struct fiq_state *state);
++
++#endif /* DWC_OTG_FIQ_FSM_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_stub.S
+@@ -0,0 +1,80 @@
++/*
++ * dwc_otg_fiq_fsm.S - assembly stub for the FSM FIQ
++ *
++ * Copyright (c) 2013 Raspberry Pi Foundation
++ *
++ * Author: Jonathan Bell <jonathan@raspberrypi.org>
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions are met:
++ *	* Redistributions of source code must retain the above copyright
++ *	  notice, this list of conditions and the following disclaimer.
++ *	* Redistributions in binary form must reproduce the above copyright
++ *	  notice, this list of conditions and the following disclaimer in the
++ *	  documentation and/or other materials provided with the distribution.
++ *	* Neither the name of Raspberry Pi nor the
++ *	  names of its contributors may be used to endorse or promote products
++ *	  derived from this software without specific prior written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
++ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++
++#include <asm/assembler.h>
++#include <linux/linkage.h>
++
++
++.text
++
++.global _dwc_otg_fiq_stub_end;
++
++/**
++  * _dwc_otg_fiq_stub() - entry copied to the FIQ vector page to allow
++  * a C-style function call with arguments from the FIQ banked registers.
++  * r0 = &hcd->fiq_state
++  * r1 = &hcd->num_channels
++  * r2 = &hcd->dma_buffers
++  * Tramples: r0, r1, r2, r4, fp, ip
++  */
++
++ENTRY(_dwc_otg_fiq_stub)
++	/* Stash unbanked regs - SP will have been set up for us */
++	mov ip, sp;
++	stmdb sp!, {r0-r12, lr};
++#ifdef FIQ_DEBUG
++	// Cycle profiling - read cycle counter at start
++	mrc p15, 0, r5, c15, c12, 1;
++#endif
++	/* r11 = fp, don't trample it */
++	mov r4, fp;
++	/* set EABI frame size */
++	sub fp, ip, #512;
++
++	/* for fiq NOP mode - just need state */
++	mov r0, r8;
++	/* r9 = num_channels */
++	mov r1, r9;
++	/* r10 = struct *dma_bufs */
++//	mov r2, r10;
++
++	/* r4 = &fiq_c_function */
++	blx r4;
++#ifdef FIQ_DEBUG
++	mrc p15, 0, r4, c15, c12, 1;
++	subs r5, r5, r4;
++	// r5 is now the cycle count time for executing the FIQ. Store it somewhere?
++#endif
++	ldmia sp!, {r0-r12, lr};
++	subs pc, lr, #4;
++_dwc_otg_fiq_stub_end:
++END(_dwc_otg_fiq_stub)
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
+@@ -0,0 +1,4356 @@
++
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.c $
++ * $Revision: #104 $
++ * $Date: 2011/10/24 $
++ * $Change: 1871159 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++
++/** @file
++ * This file implements HCD Core. All code in this file is portable and doesn't
++ * use any OS specific functions.
++ * Interface provided by HCD Core is defined in <code><hcd_if.h></code>
++ * header file.
++ */
++
++#include <linux/usb.h>
++#include <linux/usb/hcd.h>
++
++#include "dwc_otg_hcd.h"
++#include "dwc_otg_regs.h"
++#include "dwc_otg_fiq_fsm.h"
++
++extern bool microframe_schedule;
++extern uint16_t fiq_fsm_mask, nak_holdoff;
++
++//#define DEBUG_HOST_CHANNELS
++#ifdef DEBUG_HOST_CHANNELS
++static int last_sel_trans_num_per_scheduled = 0;
++static int last_sel_trans_num_nonper_scheduled = 0;
++static int last_sel_trans_num_avail_hc_at_start = 0;
++static int last_sel_trans_num_avail_hc_at_end = 0;
++#endif /* DEBUG_HOST_CHANNELS */
++
++
++dwc_otg_hcd_t *dwc_otg_hcd_alloc_hcd(void)
++{
++	return DWC_ALLOC(sizeof(dwc_otg_hcd_t));
++}
++
++/**
++ * Connection timeout function.  An OTG host is required to display a
++ * message if the device does not connect within 10 seconds.
++ */
++void dwc_otg_hcd_connect_timeout(void *ptr)
++{
++	DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, ptr);
++	DWC_PRINTF("Connect Timeout\n");
++	__DWC_ERROR("Device Not Connected/Responding\n");
++}
++
++#if defined(DEBUG)
++static void dump_channel_info(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	if (qh->channel != NULL) {
++		dwc_hc_t *hc = qh->channel;
++		dwc_list_link_t *item;
++		dwc_otg_qh_t *qh_item;
++		int num_channels = hcd->core_if->core_params->host_channels;
++		int i;
++
++		dwc_otg_hc_regs_t *hc_regs;
++		hcchar_data_t hcchar;
++		hcsplt_data_t hcsplt;
++		hctsiz_data_t hctsiz;
++		uint32_t hcdma;
++
++		hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num];
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++		hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt);
++		hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++		hcdma = DWC_READ_REG32(&hc_regs->hcdma);
++
++		DWC_PRINTF("  Assigned to channel %p:\n", hc);
++		DWC_PRINTF("    hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32,
++			   hcsplt.d32);
++		DWC_PRINTF("    hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32,
++			   hcdma);
++		DWC_PRINTF("    dev_addr: %d, ep_num: %d, ep_is_in: %d\n",
++			   hc->dev_addr, hc->ep_num, hc->ep_is_in);
++		DWC_PRINTF("    ep_type: %d\n", hc->ep_type);
++		DWC_PRINTF("    max_packet: %d\n", hc->max_packet);
++		DWC_PRINTF("    data_pid_start: %d\n", hc->data_pid_start);
++		DWC_PRINTF("    xfer_started: %d\n", hc->xfer_started);
++		DWC_PRINTF("    halt_status: %d\n", hc->halt_status);
++		DWC_PRINTF("    xfer_buff: %p\n", hc->xfer_buff);
++		DWC_PRINTF("    xfer_len: %d\n", hc->xfer_len);
++		DWC_PRINTF("    qh: %p\n", hc->qh);
++		DWC_PRINTF("  NP inactive sched:\n");
++		DWC_LIST_FOREACH(item, &hcd->non_periodic_sched_inactive) {
++			qh_item =
++			    DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry);
++			DWC_PRINTF("    %p\n", qh_item);
++		}
++		DWC_PRINTF("  NP active sched:\n");
++		DWC_LIST_FOREACH(item, &hcd->non_periodic_sched_active) {
++			qh_item =
++			    DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry);
++			DWC_PRINTF("    %p\n", qh_item);
++		}
++		DWC_PRINTF("  Channels: \n");
++		for (i = 0; i < num_channels; i++) {
++			dwc_hc_t *hc = hcd->hc_ptr_array[i];
++			DWC_PRINTF("    %2d: %p\n", i, hc);
++		}
++	}
++}
++#else
++#define dump_channel_info(hcd, qh)
++#endif /* DEBUG */
++
++/**
++ * Work queue function for starting the HCD when A-Cable is connected.
++ * The hcd_start() must be called in a process context.
++ */
++static void hcd_start_func(void *_vp)
++{
++	dwc_otg_hcd_t *hcd = (dwc_otg_hcd_t *) _vp;
++
++	DWC_DEBUGPL(DBG_HCDV, "%s() %p\n", __func__, hcd);
++	if (hcd) {
++		hcd->fops->start(hcd);
++	}
++}
++
++static void del_xfer_timers(dwc_otg_hcd_t * hcd)
++{
++#ifdef DEBUG
++	int i;
++	int num_channels = hcd->core_if->core_params->host_channels;
++	for (i = 0; i < num_channels; i++) {
++		DWC_TIMER_CANCEL(hcd->core_if->hc_xfer_timer[i]);
++	}
++#endif
++}
++
++static void del_timers(dwc_otg_hcd_t * hcd)
++{
++	del_xfer_timers(hcd);
++	DWC_TIMER_CANCEL(hcd->conn_timer);
++}
++
++/**
++ * Processes all the URBs in a single list of QHs. Completes them with
++ * -ESHUTDOWN and frees the QTD.
++ */
++static void kill_urbs_in_qh_list(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list)
++{
++	dwc_list_link_t *qh_item, *qh_tmp;
++	dwc_otg_qh_t *qh;
++	dwc_otg_qtd_t *qtd, *qtd_tmp;
++	int quiesced = 0;
++
++	DWC_LIST_FOREACH_SAFE(qh_item, qh_tmp, qh_list) {
++		qh = DWC_LIST_ENTRY(qh_item, dwc_otg_qh_t, qh_list_entry);
++		DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp,
++					 &qh->qtd_list, qtd_list_entry) {
++			qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++			if (qtd->urb != NULL) {
++				hcd->fops->complete(hcd, qtd->urb->priv,
++						    qtd->urb, -DWC_E_SHUTDOWN);
++				dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh);
++			}
++
++		}
++		if(qh->channel) {
++			int n = qh->channel->hc_num;
++			/* Using hcchar.chen == 1 is not a reliable test.
++			 * It is possible that the channel has already halted
++			 * but not yet been through the IRQ handler.
++			 */
++			if (fiq_fsm_enable && (hcd->fiq_state->channel[qh->channel->hc_num].fsm != FIQ_PASSTHROUGH)) {
++				qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE;
++				qh->channel->halt_pending = 1;
++				if (hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_TURBO ||
++				    hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
++					hcd->fiq_state->channel[n].fsm = FIQ_HS_ISOC_ABORTED;
++				/* We're called from disconnect callback or in the middle of freeing the HCD here,
++				 * so FIQ is disabled, top-level interrupts masked and we're holding the spinlock.
++				 * No further URBs will be submitted, but wait 1 microframe for any previously
++				 * submitted periodic DMA to finish.
++				 */
++				if (!quiesced) {
++					udelay(125);
++					quiesced = 1;
++				}
++			} else {
++				dwc_otg_hc_halt(hcd->core_if, qh->channel,
++						DWC_OTG_HC_XFER_URB_DEQUEUE);
++			}
++			qh->channel = NULL;
++		}
++		dwc_otg_hcd_qh_remove(hcd, qh);
++	}
++}
++
++/**
++ * Responds with an error status of ESHUTDOWN to all URBs in the non-periodic
++ * and periodic schedules. The QTD associated with each URB is removed from
++ * the schedule and freed. This function may be called when a disconnect is
++ * detected or when the HCD is being stopped.
++ */
++static void kill_all_urbs(dwc_otg_hcd_t * hcd)
++{
++	kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_inactive);
++	kill_urbs_in_qh_list(hcd, &hcd->non_periodic_sched_active);
++	kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_inactive);
++	kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_ready);
++	kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_assigned);
++	kill_urbs_in_qh_list(hcd, &hcd->periodic_sched_queued);
++}
++
++/**
++ * Start the connection timer.  An OTG host is required to display a
++ * message if the device does not connect within 10 seconds.  The
++ * timer is deleted if a port connect interrupt occurs before the
++ * timer expires.
++ */
++static void dwc_otg_hcd_start_connect_timer(dwc_otg_hcd_t * hcd)
++{
++	DWC_TIMER_SCHEDULE(hcd->conn_timer, 10000 /* 10 secs */ );
++}
++
++/**
++ * HCD Callback function for disconnect of the HCD.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int32_t dwc_otg_hcd_session_start_cb(void *p)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd;
++	DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p);
++	dwc_otg_hcd = p;
++	dwc_otg_hcd_start_connect_timer(dwc_otg_hcd);
++	return 1;
++}
++
++/**
++ * HCD Callback function for starting the HCD when A-Cable is
++ * connected.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int32_t dwc_otg_hcd_start_cb(void *p)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = p;
++	dwc_otg_core_if_t *core_if;
++	hprt0_data_t hprt0;
++
++	core_if = dwc_otg_hcd->core_if;
++
++	if (core_if->op_state == B_HOST) {
++		/*
++		 * Reset the port.  During a HNP mode switch the reset
++		 * needs to occur within 1ms and have a duration of at
++		 * least 50ms.
++		 */
++		hprt0.d32 = dwc_otg_read_hprt0(core_if);
++		hprt0.b.prtrst = 1;
++		DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	}
++	DWC_WORKQ_SCHEDULE_DELAYED(core_if->wq_otg,
++				   hcd_start_func, dwc_otg_hcd, 50,
++				   "start hcd");
++
++	return 1;
++}
++
++/**
++ * HCD Callback function for disconnect of the HCD.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int32_t dwc_otg_hcd_disconnect_cb(void *p)
++{
++	gintsts_data_t intr;
++	dwc_otg_hcd_t *dwc_otg_hcd = p;
++
++	DWC_SPINLOCK(dwc_otg_hcd->lock);
++	/*
++	 * Set status flags for the hub driver.
++	 */
++	dwc_otg_hcd->flags.b.port_connect_status_change = 1;
++	dwc_otg_hcd->flags.b.port_connect_status = 0;
++	if(fiq_enable) {
++		local_fiq_disable();
++		fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock);
++	}
++	/*
++	 * Shutdown any transfers in process by clearing the Tx FIFO Empty
++	 * interrupt mask and status bits and disabling subsequent host
++	 * channel interrupts.
++	 */
++	intr.d32 = 0;
++	intr.b.nptxfempty = 1;
++	intr.b.ptxfempty = 1;
++	intr.b.hcintr = 1;
++	DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk,
++			 intr.d32, 0);
++	DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintsts,
++			 intr.d32, 0);
++
++	del_timers(dwc_otg_hcd);
++
++	/*
++	 * Turn off the vbus power only if the core has transitioned to device
++	 * mode. If still in host mode, need to keep power on to detect a
++	 * reconnection.
++	 */
++	if (dwc_otg_is_device_mode(dwc_otg_hcd->core_if)) {
++		if (dwc_otg_hcd->core_if->op_state != A_SUSPEND) {
++			hprt0_data_t hprt0 = {.d32 = 0 };
++			DWC_PRINTF("Disconnect: PortPower off\n");
++			hprt0.b.prtpwr = 0;
++			DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0,
++					hprt0.d32);
++		}
++
++		dwc_otg_disable_host_interrupts(dwc_otg_hcd->core_if);
++	}
++
++	/* Respond with an error status to all URBs in the schedule. */
++	kill_all_urbs(dwc_otg_hcd);
++
++	if (dwc_otg_is_host_mode(dwc_otg_hcd->core_if)) {
++		/* Clean up any host channels that were in use. */
++		int num_channels;
++		int i;
++		dwc_hc_t *channel;
++		dwc_otg_hc_regs_t *hc_regs;
++		hcchar_data_t hcchar;
++
++		num_channels = dwc_otg_hcd->core_if->core_params->host_channels;
++
++		if (!dwc_otg_hcd->core_if->dma_enable) {
++			/* Flush out any channel requests in slave mode. */
++			for (i = 0; i < num_channels; i++) {
++				channel = dwc_otg_hcd->hc_ptr_array[i];
++				if (DWC_CIRCLEQ_EMPTY_ENTRY
++				    (channel, hc_list_entry)) {
++					hc_regs =
++					    dwc_otg_hcd->core_if->
++					    host_if->hc_regs[i];
++					hcchar.d32 =
++					    DWC_READ_REG32(&hc_regs->hcchar);
++					if (hcchar.b.chen) {
++						hcchar.b.chen = 0;
++						hcchar.b.chdis = 1;
++						hcchar.b.epdir = 0;
++						DWC_WRITE_REG32
++						    (&hc_regs->hcchar,
++						     hcchar.d32);
++					}
++				}
++			}
++		}
++
++		if(fiq_fsm_enable) {
++			for(i=0; i < 128; i++) {
++				dwc_otg_hcd->hub_port[i] = 0;
++			}
++		}
++	}
++
++	if(fiq_enable) {
++		fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock);
++		local_fiq_enable();
++	}
++
++	if (dwc_otg_hcd->fops->disconnect) {
++		dwc_otg_hcd->fops->disconnect(dwc_otg_hcd);
++	}
++
++	DWC_SPINUNLOCK(dwc_otg_hcd->lock);
++	return 1;
++}
++
++/**
++ * HCD Callback function for stopping the HCD.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int32_t dwc_otg_hcd_stop_cb(void *p)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = p;
++
++	DWC_DEBUGPL(DBG_HCDV, "%s(%p)\n", __func__, p);
++	dwc_otg_hcd_stop(dwc_otg_hcd);
++	return 1;
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++/**
++ * HCD Callback function for sleep of HCD.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int dwc_otg_hcd_sleep_cb(void *p)
++{
++	dwc_otg_hcd_t *hcd = p;
++
++	dwc_otg_hcd_free_hc_from_lpm(hcd);
++
++	return 0;
++}
++#endif
++
++
++/**
++ * HCD Callback function for Remote Wakeup.
++ *
++ * @param p void pointer to the <code>struct usb_hcd</code>
++ */
++static int dwc_otg_hcd_rem_wakeup_cb(void *p)
++{
++	dwc_otg_hcd_t *hcd = p;
++
++	if (hcd->core_if->lx_state == DWC_OTG_L2) {
++		hcd->flags.b.port_suspend_change = 1;
++	}
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	else {
++		hcd->flags.b.port_l1_change = 1;
++	}
++#endif
++	return 0;
++}
++
++/**
++ * Halts the DWC_otg host mode operations in a clean manner. USB transfers are
++ * stopped.
++ */
++void dwc_otg_hcd_stop(dwc_otg_hcd_t * hcd)
++{
++	hprt0_data_t hprt0 = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD STOP\n");
++
++	/*
++	 * The root hub should be disconnected before this function is called.
++	 * The disconnect will clear the QTD lists (via ..._hcd_urb_dequeue)
++	 * and the QH lists (via ..._hcd_endpoint_disable).
++	 */
++
++	/* Turn off all host-specific interrupts. */
++	dwc_otg_disable_host_interrupts(hcd->core_if);
++
++	/* Turn off the vbus power */
++	DWC_PRINTF("PortPower off\n");
++	hprt0.b.prtpwr = 0;
++	DWC_WRITE_REG32(hcd->core_if->host_if->hprt0, hprt0.d32);
++	dwc_mdelay(1);
++}
++
++int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_t * hcd,
++			    dwc_otg_hcd_urb_t * dwc_otg_urb, void **ep_handle,
++			    int atomic_alloc)
++{
++	int retval = 0;
++	uint8_t needs_scheduling = 0;
++	dwc_otg_transaction_type_e tr_type;
++	dwc_otg_qtd_t *qtd;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	hprt0_data_t hprt0 = { .d32 = 0 };
++
++#ifdef DEBUG /* integrity checks (Broadcom) */
++	if (NULL == hcd->core_if) {
++		DWC_ERROR("**** DWC OTG HCD URB Enqueue - HCD has NULL core_if\n");
++		/* No longer connected. */
++		return -DWC_E_INVALID;
++	}
++#endif
++	if (!hcd->flags.b.port_connect_status) {
++		/* No longer connected. */
++		DWC_ERROR("Not connected\n");
++		return -DWC_E_NO_DEVICE;
++	}
++
++	/* Some core configurations cannot support LS traffic on a FS root port */
++	if ((hcd->fops->speed(hcd, dwc_otg_urb->priv) == USB_SPEED_LOW) &&
++		(hcd->core_if->hwcfg2.b.fs_phy_type == 1) &&
++		(hcd->core_if->hwcfg2.b.hs_phy_type == 1)) {
++			hprt0.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0);
++			if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_FULL_SPEED) {
++				return -DWC_E_NO_DEVICE;
++			}
++	}
++
++	qtd = dwc_otg_hcd_qtd_create(dwc_otg_urb, atomic_alloc);
++	if (qtd == NULL) {
++		DWC_ERROR("DWC OTG HCD URB Enqueue failed creating QTD\n");
++		return -DWC_E_NO_MEMORY;
++	}
++#ifdef DEBUG /* integrity checks (Broadcom) */
++	if (qtd->urb == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Enqueue created QTD with no URBs\n");
++		return -DWC_E_NO_MEMORY;
++	}
++	if (qtd->urb->priv == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Enqueue created QTD URB with no URB handle\n");
++		return -DWC_E_NO_MEMORY;
++	}
++#endif
++	intr_mask.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->gintmsk);
++	if(!intr_mask.b.sofintr || fiq_enable) needs_scheduling = 1;
++	if((((dwc_otg_qh_t *)ep_handle)->ep_type == UE_BULK) && !(qtd->urb->flags & URB_GIVEBACK_ASAP))
++		/* Do not schedule SG transactions until qtd has URB_GIVEBACK_ASAP set */
++		needs_scheduling = 0;
++
++	retval = dwc_otg_hcd_qtd_add(qtd, hcd, (dwc_otg_qh_t **) ep_handle, atomic_alloc);
++            // creates a new queue in ep_handle if it doesn't exist already
++	if (retval < 0) {
++		DWC_ERROR("DWC OTG HCD URB Enqueue failed adding QTD. "
++			  "Error status %d\n", retval);
++		dwc_otg_hcd_qtd_free(qtd);
++		return retval;
++	}
++
++	if(needs_scheduling) {
++		tr_type = dwc_otg_hcd_select_transactions(hcd);
++		if (tr_type != DWC_OTG_TRANSACTION_NONE) {
++			dwc_otg_hcd_queue_transactions(hcd, tr_type);
++		}
++	}
++	return retval;
++}
++
++int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * hcd,
++			    dwc_otg_hcd_urb_t * dwc_otg_urb)
++{
++	dwc_otg_qh_t *qh;
++	dwc_otg_qtd_t *urb_qtd;
++	BUG_ON(!hcd);
++	BUG_ON(!dwc_otg_urb);
++
++#ifdef DEBUG /* integrity checks (Broadcom) */
++
++	if (hcd == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Dequeue has NULL HCD\n");
++		return -DWC_E_INVALID;
++	}
++	if (dwc_otg_urb == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Dequeue has NULL URB\n");
++		return -DWC_E_INVALID;
++	}
++	if (dwc_otg_urb->qtd == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Dequeue with NULL QTD\n");
++		return -DWC_E_INVALID;
++	}
++	urb_qtd = dwc_otg_urb->qtd;
++	BUG_ON(!urb_qtd);
++	if (urb_qtd->qh == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Dequeue with QTD with NULL Q handler\n");
++		return -DWC_E_INVALID;
++	}
++#else
++	urb_qtd = dwc_otg_urb->qtd;
++	BUG_ON(!urb_qtd);
++#endif
++	qh = urb_qtd->qh;
++	BUG_ON(!qh);
++	if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
++		if (urb_qtd->in_process) {
++			dump_channel_info(hcd, qh);
++		}
++	}
++#ifdef DEBUG /* integrity checks (Broadcom) */
++	if (hcd->core_if == NULL) {
++		DWC_ERROR("**** DWC OTG HCD URB Dequeue HCD has NULL core_if\n");
++		return -DWC_E_INVALID;
++	}
++#endif
++	if (urb_qtd->in_process && qh->channel) {
++		/* The QTD is in process (it has been assigned to a channel). */
++		if (hcd->flags.b.port_connect_status) {
++			int n = qh->channel->hc_num;
++			/*
++			 * If still connected (i.e. in host mode), halt the
++			 * channel so it can be used for other transfers. If
++			 * no longer connected, the host registers can't be
++			 * written to halt the channel since the core is in
++			 * device mode.
++			 */
++			/* In FIQ FSM mode, we need to shut down carefully.
++			 * The FIQ may attempt to restart a disabled channel */
++			if (fiq_fsm_enable && (hcd->fiq_state->channel[n].fsm != FIQ_PASSTHROUGH)) {
++				int retries = 3;
++				int running = 0;
++				enum fiq_fsm_state state;
++
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE;
++				qh->channel->halt_pending = 1;
++				if (hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_TURBO ||
++				    hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
++					hcd->fiq_state->channel[n].fsm = FIQ_HS_ISOC_ABORTED;
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++
++				if (dwc_qh_is_non_per(qh)) {
++					do {
++						state = READ_ONCE(hcd->fiq_state->channel[n].fsm);
++						running = (state != FIQ_NP_SPLIT_DONE) &&
++							  (state != FIQ_NP_SPLIT_LS_ABORTED) &&
++							  (state != FIQ_NP_SPLIT_HS_ABORTED);
++						if (!running)
++							break;
++						udelay(125);
++					} while(--retries);
++					if (!retries)
++						DWC_WARN("Timed out waiting for FSM NP transfer to complete on %d",
++							 qh->channel->hc_num);
++				}
++			} else {
++				dwc_otg_hc_halt(hcd->core_if, qh->channel,
++						DWC_OTG_HC_XFER_URB_DEQUEUE);
++			}
++		}
++	}
++
++	/*
++	 * Free the QTD and clean up the associated QH. Leave the QH in the
++	 * schedule if it has any remaining QTDs.
++	 */
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue - "
++                    "delete %sQueue handler\n",
++                    hcd->core_if->dma_desc_enable?"DMA ":"");
++	if (!hcd->core_if->dma_desc_enable) {
++		uint8_t b = urb_qtd->in_process;
++		if (nak_holdoff && qh->do_split && dwc_qh_is_non_per(qh))
++			qh->nak_frame = 0xFFFF;
++		dwc_otg_hcd_qtd_remove_and_free(hcd, urb_qtd, qh);
++		if (b) {
++			dwc_otg_hcd_qh_deactivate(hcd, qh, 0);
++			qh->channel = NULL;
++		} else if (DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) {
++			dwc_otg_hcd_qh_remove(hcd, qh);
++		}
++	} else {
++		dwc_otg_hcd_qtd_remove_and_free(hcd, urb_qtd, qh);
++	}
++	return 0;
++}
++
++int dwc_otg_hcd_endpoint_disable(dwc_otg_hcd_t * hcd, void *ep_handle,
++				 int retry)
++{
++	dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle;
++	int retval = 0;
++	dwc_irqflags_t flags;
++
++	if (retry < 0) {
++		retval = -DWC_E_INVALID;
++		goto done;
++	}
++
++	if (!qh) {
++		retval = -DWC_E_INVALID;
++		goto done;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++
++	while (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list) && retry) {
++		DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++		retry--;
++		dwc_msleep(5);
++		DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	}
++
++	dwc_otg_hcd_qh_remove(hcd, qh);
++
++	DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++	/*
++	 * Split dwc_otg_hcd_qh_remove_and_free() into qh_remove
++	 * and qh_free to prevent stack dump on DWC_DMA_FREE() with
++	 * irq_disabled (spinlock_irqsave) in dwc_otg_hcd_desc_list_free()
++	 * and dwc_otg_hcd_frame_list_alloc().
++	 */
++	dwc_otg_hcd_qh_free(hcd, qh);
++
++done:
++	return retval;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
++int dwc_otg_hcd_endpoint_reset(dwc_otg_hcd_t * hcd, void *ep_handle)
++{
++	int retval = 0;
++	dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle;
++	if (!qh)
++		return -DWC_E_INVALID;
++
++	qh->data_toggle = DWC_OTG_HC_PID_DATA0;
++	return retval;
++}
++#endif
++
++/**
++ * HCD Callback structure for handling mode switching.
++ */
++static dwc_otg_cil_callbacks_t hcd_cil_callbacks = {
++	.start = dwc_otg_hcd_start_cb,
++	.stop = dwc_otg_hcd_stop_cb,
++	.disconnect = dwc_otg_hcd_disconnect_cb,
++	.session_start = dwc_otg_hcd_session_start_cb,
++	.resume_wakeup = dwc_otg_hcd_rem_wakeup_cb,
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	.sleep = dwc_otg_hcd_sleep_cb,
++#endif
++	.p = 0,
++};
++
++/**
++ * Reset tasklet function
++ */
++static void reset_tasklet_func(void *data)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *) data;
++	dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
++	hprt0_data_t hprt0;
++
++	DWC_DEBUGPL(DBG_HCDV, "USB RESET tasklet called\n");
++
++	hprt0.d32 = dwc_otg_read_hprt0(core_if);
++	hprt0.b.prtrst = 1;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	dwc_mdelay(60);
++
++	hprt0.b.prtrst = 0;
++	DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++	dwc_otg_hcd->flags.b.port_reset_change = 1;
++}
++
++static void completion_tasklet_func(void *ptr)
++{
++	dwc_otg_hcd_t *hcd = (dwc_otg_hcd_t *) ptr;
++	struct urb *urb;
++	urb_tq_entry_t *item;
++	dwc_irqflags_t flags;
++
++	/* This could just be spin_lock_irq */
++	DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	while (!DWC_TAILQ_EMPTY(&hcd->completed_urb_list)) {
++		item = DWC_TAILQ_FIRST(&hcd->completed_urb_list);
++		urb = item->urb;
++		DWC_TAILQ_REMOVE(&hcd->completed_urb_list, item,
++				urb_tq_entries);
++		DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++		DWC_FREE(item);
++
++		usb_hcd_giveback_urb(hcd->priv, urb, urb->status);
++
++
++		DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	}
++	DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++	return;
++}
++
++static void qh_list_free(dwc_otg_hcd_t * hcd, dwc_list_link_t * qh_list)
++{
++	dwc_list_link_t *item;
++	dwc_otg_qh_t *qh;
++	dwc_irqflags_t flags;
++
++	if (!qh_list->next) {
++		/* The list hasn't been initialized yet. */
++		return;
++	}
++	/*
++	 * Hold spinlock here. Not needed in that case if bellow
++	 * function is being called from ISR
++	 */
++	DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	/* Ensure there are no QTDs or URBs left. */
++	kill_urbs_in_qh_list(hcd, qh_list);
++	DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++
++	DWC_LIST_FOREACH(item, qh_list) {
++		qh = DWC_LIST_ENTRY(item, dwc_otg_qh_t, qh_list_entry);
++		dwc_otg_hcd_qh_remove_and_free(hcd, qh);
++	}
++}
++
++/**
++ * Exit from Hibernation if Host did not detect SRP from connected SRP capable
++ * Device during SRP time by host power up.
++ */
++void dwc_otg_hcd_power_up(void *ptr)
++{
++	gpwrdn_data_t gpwrdn = {.d32 = 0 };
++	dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr;
++
++	DWC_PRINTF("%s called\n", __FUNCTION__);
++
++	if (!core_if->hibernation_suspend) {
++		DWC_PRINTF("Already exited from Hibernation\n");
++		return;
++	}
++
++	/* Switch on the voltage to the core */
++	gpwrdn.b.pwrdnswtch = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Reset the core */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Disable power clamps */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnclmp = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	/* Remove reset the core signal */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pwrdnrstn = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0, gpwrdn.d32);
++	dwc_udelay(10);
++
++	/* Disable PMU interrupt */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuintsel = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	core_if->hibernation_suspend = 0;
++
++	/* Disable PMU */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.pmuactv = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++	dwc_udelay(10);
++
++	/* Enable VBUS */
++	gpwrdn.d32 = 0;
++	gpwrdn.b.dis_vbus = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, gpwrdn.d32, 0);
++
++	core_if->op_state = A_HOST;
++	dwc_otg_core_init(core_if);
++	dwc_otg_enable_global_interrupts(core_if);
++	cil_hcd_start(core_if);
++}
++
++void dwc_otg_cleanup_fiq_channel(dwc_otg_hcd_t *hcd, uint32_t num)
++{
++	struct fiq_channel_state *st = &hcd->fiq_state->channel[num];
++	struct fiq_dma_blob *blob = hcd->fiq_dmab;
++	int i;
++
++	st->fsm = FIQ_PASSTHROUGH;
++	st->hcchar_copy.d32 = 0;
++	st->hcsplt_copy.d32 = 0;
++	st->hcint_copy.d32 = 0;
++	st->hcintmsk_copy.d32 = 0;
++	st->hctsiz_copy.d32 = 0;
++	st->hcdma_copy.d32 = 0;
++	st->nr_errors = 0;
++	st->hub_addr = 0;
++	st->port_addr = 0;
++	st->expected_uframe = 0;
++	st->nrpackets = 0;
++	st->dma_info.index = 0;
++	for (i = 0; i < 6; i++)
++		st->dma_info.slot_len[i] = 255;
++	st->hs_isoc_info.index = 0;
++	st->hs_isoc_info.iso_desc = NULL;
++	st->hs_isoc_info.nrframes = 0;
++
++	DWC_MEMSET(&blob->channel[num].index[0], 0x6b, 1128);
++}
++
++/**
++ * Frees secondary storage associated with the dwc_otg_hcd structure contained
++ * in the struct usb_hcd field.
++ */
++static void dwc_otg_hcd_free(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(dwc_otg_hcd);
++	int i;
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD FREE\n");
++
++	del_timers(dwc_otg_hcd);
++
++	/* Free memory for QH/QTD lists */
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_inactive);
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->non_periodic_sched_active);
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_inactive);
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_ready);
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_assigned);
++	qh_list_free(dwc_otg_hcd, &dwc_otg_hcd->periodic_sched_queued);
++
++	/* Free memory for the host channels. */
++	for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++		dwc_hc_t *hc = dwc_otg_hcd->hc_ptr_array[i];
++
++#ifdef DEBUG
++		if (dwc_otg_hcd->core_if->hc_xfer_timer[i]) {
++			DWC_TIMER_FREE(dwc_otg_hcd->core_if->hc_xfer_timer[i]);
++		}
++#endif
++		if (hc != NULL) {
++			DWC_DEBUGPL(DBG_HCDV, "HCD Free channel #%i, hc=%p\n",
++				    i, hc);
++			DWC_FREE(hc);
++		}
++	}
++
++	if (dwc_otg_hcd->core_if->dma_enable) {
++		if (dwc_otg_hcd->status_buf_dma) {
++			DWC_DMA_FREE(dev, DWC_OTG_HCD_STATUS_BUF_SIZE,
++				     dwc_otg_hcd->status_buf,
++				     dwc_otg_hcd->status_buf_dma);
++		}
++	} else if (dwc_otg_hcd->status_buf != NULL) {
++		DWC_FREE(dwc_otg_hcd->status_buf);
++	}
++	DWC_SPINLOCK_FREE(dwc_otg_hcd->lock);
++	/* Set core_if's lock pointer to NULL */
++	dwc_otg_hcd->core_if->lock = NULL;
++
++	DWC_TIMER_FREE(dwc_otg_hcd->conn_timer);
++	DWC_TASK_FREE(dwc_otg_hcd->reset_tasklet);
++	DWC_TASK_FREE(dwc_otg_hcd->completion_tasklet);
++	DWC_DMA_FREE(dev, 16, dwc_otg_hcd->fiq_state->dummy_send,
++		     dwc_otg_hcd->fiq_state->dummy_send_dma);
++	DWC_FREE(dwc_otg_hcd->fiq_state);
++
++#ifdef DWC_DEV_SRPCAP
++	if (dwc_otg_hcd->core_if->power_down == 2 &&
++	    dwc_otg_hcd->core_if->pwron_timer) {
++		DWC_TIMER_FREE(dwc_otg_hcd->core_if->pwron_timer);
++	}
++#endif
++	DWC_FREE(dwc_otg_hcd);
++}
++
++int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++	int retval = 0;
++	int num_channels;
++	int i;
++	dwc_hc_t *channel;
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK))
++	DWC_SPINLOCK_ALLOC_LINUX_DEBUG(hcd->lock);
++#else
++	hcd->lock = DWC_SPINLOCK_ALLOC();
++#endif
++        DWC_DEBUGPL(DBG_HCDV, "init of HCD %p given core_if %p\n",
++                    hcd, core_if);
++	if (!hcd->lock) {
++		DWC_ERROR("Could not allocate lock for pcd");
++		DWC_FREE(hcd);
++		retval = -DWC_E_NO_MEMORY;
++		goto out;
++	}
++	hcd->core_if = core_if;
++
++	/* Register the HCD CIL Callbacks */
++	dwc_otg_cil_register_hcd_callbacks(hcd->core_if,
++					   &hcd_cil_callbacks, hcd);
++
++	/* Initialize the non-periodic schedule. */
++	DWC_LIST_INIT(&hcd->non_periodic_sched_inactive);
++	DWC_LIST_INIT(&hcd->non_periodic_sched_active);
++
++	/* Initialize the periodic schedule. */
++	DWC_LIST_INIT(&hcd->periodic_sched_inactive);
++	DWC_LIST_INIT(&hcd->periodic_sched_ready);
++	DWC_LIST_INIT(&hcd->periodic_sched_assigned);
++	DWC_LIST_INIT(&hcd->periodic_sched_queued);
++	DWC_TAILQ_INIT(&hcd->completed_urb_list);
++	/*
++	 * Create a host channel descriptor for each host channel implemented
++	 * in the controller. Initialize the channel descriptor array.
++	 */
++	DWC_CIRCLEQ_INIT(&hcd->free_hc_list);
++	num_channels = hcd->core_if->core_params->host_channels;
++	DWC_MEMSET(hcd->hc_ptr_array, 0, sizeof(hcd->hc_ptr_array));
++	for (i = 0; i < num_channels; i++) {
++		channel = DWC_ALLOC(sizeof(dwc_hc_t));
++		if (channel == NULL) {
++			retval = -DWC_E_NO_MEMORY;
++			DWC_ERROR("%s: host channel allocation failed\n",
++				  __func__);
++			dwc_otg_hcd_free(hcd);
++			goto out;
++		}
++		channel->hc_num = i;
++		hcd->hc_ptr_array[i] = channel;
++#ifdef DEBUG
++		hcd->core_if->hc_xfer_timer[i] =
++		    DWC_TIMER_ALLOC("hc timer", hc_xfer_timeout,
++				    &hcd->core_if->hc_xfer_info[i]);
++#endif
++		DWC_DEBUGPL(DBG_HCDV, "HCD Added channel #%d, hc=%p\n", i,
++			    channel);
++	}
++
++	if (fiq_enable) {
++		hcd->fiq_state = DWC_ALLOC(sizeof(struct fiq_state) + (sizeof(struct fiq_channel_state) * num_channels));
++		if (!hcd->fiq_state) {
++			retval = -DWC_E_NO_MEMORY;
++			DWC_ERROR("%s: cannot allocate fiq_state structure\n", __func__);
++			dwc_otg_hcd_free(hcd);
++			goto out;
++		}
++		DWC_MEMSET(hcd->fiq_state, 0, (sizeof(struct fiq_state) + (sizeof(struct fiq_channel_state) * num_channels)));
++
++#ifdef CONFIG_ARM64
++		spin_lock_init(&hcd->fiq_state->lock);
++#endif
++
++		for (i = 0; i < num_channels; i++) {
++			hcd->fiq_state->channel[i].fsm = FIQ_PASSTHROUGH;
++		}
++		hcd->fiq_state->dummy_send = DWC_DMA_ALLOC_ATOMIC(dev, 16,
++							 &hcd->fiq_state->dummy_send_dma);
++
++		hcd->fiq_stack = DWC_ALLOC(sizeof(struct fiq_stack));
++		if (!hcd->fiq_stack) {
++			retval = -DWC_E_NO_MEMORY;
++			DWC_ERROR("%s: cannot allocate fiq_stack structure\n", __func__);
++			dwc_otg_hcd_free(hcd);
++			goto out;
++		}
++		hcd->fiq_stack->magic1 = 0xDEADBEEF;
++		hcd->fiq_stack->magic2 = 0xD00DFEED;
++		hcd->fiq_state->gintmsk_saved.d32 = ~0;
++		hcd->fiq_state->haintmsk_saved.b2.chint = ~0;
++
++		/* This bit is terrible and uses no API, but necessary. The FIQ has no concept of DMA pools
++		 * (and if it did, would be a lot slower). This allocates a chunk of memory (~9kiB for 8 host channels)
++		 * for use as transaction bounce buffers in a 2-D array. Our access into this chunk is done by some
++		 * moderately readable array casts.
++		 */
++		hcd->fiq_dmab = DWC_DMA_ALLOC(dev, (sizeof(struct fiq_dma_channel) * num_channels), &hcd->fiq_state->dma_base);
++		DWC_WARN("FIQ DMA bounce buffers: virt = %px dma = %pad len=%zu",
++				hcd->fiq_dmab, &hcd->fiq_state->dma_base,
++				sizeof(struct fiq_dma_channel) * num_channels);
++
++		DWC_MEMSET(hcd->fiq_dmab, 0x6b, 9024);
++
++		/* pointer for debug in fiq_print */
++		hcd->fiq_state->fiq_dmab = hcd->fiq_dmab;
++		if (fiq_fsm_enable) {
++			int i;
++			for (i=0; i < hcd->core_if->core_params->host_channels; i++) {
++				dwc_otg_cleanup_fiq_channel(hcd, i);
++			}
++			DWC_PRINTF("FIQ FSM acceleration enabled for :\n%s%s%s%s",
++				(fiq_fsm_mask & 0x1) ? "Non-periodic Split Transactions\n" : "",
++				(fiq_fsm_mask & 0x2) ? "Periodic Split Transactions\n" : "",
++				(fiq_fsm_mask & 0x4) ? "High-Speed Isochronous Endpoints\n" : "",
++				(fiq_fsm_mask & 0x8) ? "Interrupt/Control Split Transaction hack enabled\n" : "");
++		}
++	}
++
++	/* Initialize the Connection timeout timer. */
++	hcd->conn_timer = DWC_TIMER_ALLOC("Connection timer",
++					  dwc_otg_hcd_connect_timeout, 0);
++
++	printk(KERN_DEBUG "dwc_otg: Microframe scheduler %s\n", microframe_schedule ? "enabled":"disabled");
++	if (microframe_schedule)
++		init_hcd_usecs(hcd);
++
++	/* Initialize reset tasklet. */
++	hcd->reset_tasklet = DWC_TASK_ALLOC("reset_tasklet", reset_tasklet_func, hcd);
++
++	hcd->completion_tasklet = DWC_TASK_ALLOC("completion_tasklet",
++						completion_tasklet_func, hcd);
++#ifdef DWC_DEV_SRPCAP
++	if (hcd->core_if->power_down == 2) {
++		/* Initialize Power on timer for Host power up in case hibernation */
++		hcd->core_if->pwron_timer = DWC_TIMER_ALLOC("PWRON TIMER",
++									dwc_otg_hcd_power_up, core_if);
++	}
++#endif
++
++	/*
++	 * Allocate space for storing data on status transactions. Normally no
++	 * data is sent, but this space acts as a bit bucket. This must be
++	 * done after usb_add_hcd since that function allocates the DMA buffer
++	 * pool.
++	 */
++	if (hcd->core_if->dma_enable) {
++		hcd->status_buf =
++		    DWC_DMA_ALLOC(dev, DWC_OTG_HCD_STATUS_BUF_SIZE,
++				  &hcd->status_buf_dma);
++	} else {
++		hcd->status_buf = DWC_ALLOC(DWC_OTG_HCD_STATUS_BUF_SIZE);
++	}
++	if (!hcd->status_buf) {
++		retval = -DWC_E_NO_MEMORY;
++		DWC_ERROR("%s: status_buf allocation failed\n", __func__);
++		dwc_otg_hcd_free(hcd);
++		goto out;
++	}
++
++	hcd->otg_port = 1;
++	hcd->frame_list = NULL;
++	hcd->frame_list_dma = 0;
++	hcd->periodic_qh_count = 0;
++
++	DWC_MEMSET(hcd->hub_port, 0, sizeof(hcd->hub_port));
++#ifdef FIQ_DEBUG
++	DWC_MEMSET(hcd->hub_port_alloc, -1, sizeof(hcd->hub_port_alloc));
++#endif
++
++out:
++	return retval;
++}
++
++void dwc_otg_hcd_remove(dwc_otg_hcd_t * hcd)
++{
++	/* Turn off all host-specific interrupts. */
++	dwc_otg_disable_host_interrupts(hcd->core_if);
++
++	dwc_otg_hcd_free(hcd);
++}
++
++/**
++ * Initializes dynamic portions of the DWC_otg HCD state.
++ */
++static void dwc_otg_hcd_reinit(dwc_otg_hcd_t * hcd)
++{
++	int num_channels;
++	int i;
++	dwc_hc_t *channel;
++	dwc_hc_t *channel_tmp;
++
++	hcd->flags.d32 = 0;
++
++	hcd->non_periodic_qh_ptr = &hcd->non_periodic_sched_active;
++	if (!microframe_schedule) {
++		hcd->non_periodic_channels = 0;
++		hcd->periodic_channels = 0;
++	} else {
++		hcd->available_host_channels = hcd->core_if->core_params->host_channels;
++	}
++	/*
++	 * Put all channels in the free channel list and clean up channel
++	 * states.
++	 */
++	DWC_CIRCLEQ_FOREACH_SAFE(channel, channel_tmp,
++				 &hcd->free_hc_list, hc_list_entry) {
++		DWC_CIRCLEQ_REMOVE(&hcd->free_hc_list, channel, hc_list_entry);
++	}
++
++	num_channels = hcd->core_if->core_params->host_channels;
++	for (i = 0; i < num_channels; i++) {
++		channel = hcd->hc_ptr_array[i];
++		DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, channel,
++					hc_list_entry);
++		dwc_otg_hc_cleanup(hcd->core_if, channel);
++	}
++
++	/* Initialize the DWC core for host mode operation. */
++	dwc_otg_core_host_init(hcd->core_if);
++
++	/* Set core_if's lock pointer to the hcd->lock */
++	hcd->core_if->lock = hcd->lock;
++}
++
++/**
++ * Assigns transactions from a QTD to a free host channel and initializes the
++ * host channel to perform the transactions. The host channel is removed from
++ * the free list.
++ *
++ * @param hcd The HCD state structure.
++ * @param qh Transactions from the first QTD for this QH are selected and
++ * assigned to a free host channel.
++ */
++static void assign_and_init_hc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	dwc_hc_t *hc;
++	dwc_otg_qtd_t *qtd;
++	dwc_otg_hcd_urb_t *urb;
++	void* ptr = NULL;
++	uint16_t wLength;
++	uint32_t intr_enable;
++	unsigned long flags;
++	gintmsk_data_t gintmsk = { .d32 = 0, };
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++
++	qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++
++	urb = qtd->urb;
++
++	DWC_DEBUGPL(DBG_HCDV, "%s(%p,%p) - urb %x, actual_length %d\n", __func__, hcd, qh, (unsigned int)urb, urb->actual_length);
++
++	if (((urb->actual_length < 0) || (urb->actual_length > urb->length)) && !dwc_otg_hcd_is_pipe_in(&urb->pipe_info))
++		urb->actual_length = urb->length;
++
++
++	hc = DWC_CIRCLEQ_FIRST(&hcd->free_hc_list);
++
++	/* Remove the host channel from the free list. */
++	DWC_CIRCLEQ_REMOVE_INIT(&hcd->free_hc_list, hc, hc_list_entry);
++
++	qh->channel = hc;
++
++	qtd->in_process = 1;
++
++	/*
++	 * Use usb_pipedevice to determine device address. This address is
++	 * 0 before the SET_ADDRESS command and the correct address afterward.
++	 */
++	hc->dev_addr = dwc_otg_hcd_get_dev_addr(&urb->pipe_info);
++	hc->ep_num = dwc_otg_hcd_get_ep_num(&urb->pipe_info);
++	hc->speed = qh->dev_speed;
++	hc->max_packet = dwc_max_packet(qh->maxp);
++
++	hc->xfer_started = 0;
++	hc->halt_status = DWC_OTG_HC_XFER_NO_HALT_STATUS;
++	hc->error_state = (qtd->error_count > 0);
++	hc->halt_on_queue = 0;
++	hc->halt_pending = 0;
++	hc->requests = 0;
++
++	/*
++	 * The following values may be modified in the transfer type section
++	 * below. The xfer_len value may be reduced when the transfer is
++	 * started to accommodate the max widths of the XferSize and PktCnt
++	 * fields in the HCTSIZn register.
++	 */
++
++	hc->ep_is_in = (dwc_otg_hcd_is_pipe_in(&urb->pipe_info) != 0);
++	if (hc->ep_is_in) {
++		hc->do_ping = 0;
++	} else {
++		hc->do_ping = qh->ping_state;
++	}
++
++	hc->data_pid_start = qh->data_toggle;
++	hc->multi_count = 1;
++
++	if (hcd->core_if->dma_enable) {
++		hc->xfer_buff = (uint8_t *) urb->dma + urb->actual_length;
++
++		/* For non-dword aligned case */
++		if (((unsigned long)hc->xfer_buff & 0x3)
++		    && !hcd->core_if->dma_desc_enable) {
++			ptr = (uint8_t *) urb->buf + urb->actual_length;
++		}
++	} else {
++		hc->xfer_buff = (uint8_t *) urb->buf + urb->actual_length;
++	}
++	hc->xfer_len = urb->length - urb->actual_length;
++	hc->xfer_count = 0;
++
++	/*
++	 * Set the split attributes
++	 */
++	hc->do_split = 0;
++	if (qh->do_split) {
++		uint32_t hub_addr, port_addr;
++		hc->do_split = 1;
++		hc->start_pkt_count = 1;
++		hc->xact_pos = qtd->isoc_split_pos;
++		/* We don't need to do complete splits anymore */
++//		if(fiq_fsm_enable)
++		if (0)
++			hc->complete_split = qtd->complete_split = 0;
++		else
++			hc->complete_split = qtd->complete_split;
++
++		hcd->fops->hub_info(hcd, urb->priv, &hub_addr, &port_addr);
++		hc->hub_addr = (uint8_t) hub_addr;
++		hc->port_addr = (uint8_t) port_addr;
++	}
++
++	switch (dwc_otg_hcd_get_pipe_type(&urb->pipe_info)) {
++	case UE_CONTROL:
++		hc->ep_type = DWC_OTG_EP_TYPE_CONTROL;
++		switch (qtd->control_phase) {
++		case DWC_OTG_CONTROL_SETUP:
++			DWC_DEBUGPL(DBG_HCDV, "  Control setup transaction\n");
++			hc->do_ping = 0;
++			hc->ep_is_in = 0;
++			hc->data_pid_start = DWC_OTG_HC_PID_SETUP;
++			if (hcd->core_if->dma_enable) {
++				hc->xfer_buff = (uint8_t *) urb->setup_dma;
++			} else {
++				hc->xfer_buff = (uint8_t *) urb->setup_packet;
++			}
++			hc->xfer_len = 8;
++			ptr = NULL;
++			break;
++		case DWC_OTG_CONTROL_DATA:
++			DWC_DEBUGPL(DBG_HCDV, "  Control data transaction\n");
++			/*
++			 * Hardware bug: small IN packets with length < 4
++			 * cause a 4-byte write to memory. We can only catch
++			 * the case where we know a short packet is going to be
++			 * returned in a control transfer, as the length is
++			 * specified in the setup packet. This is only an issue
++			 * for drivers that insist on packing a device's various
++			 * properties into a struct and querying them one at a
++			 * time (uvcvideo).
++			 * Force the use of align_buf so that the subsequent
++			 * memcpy puts the right number of bytes in the URB's
++			 * buffer.
++			 */
++			wLength = ((uint16_t *)urb->setup_packet)[3];
++			if (hc->ep_is_in && wLength < 4)
++				ptr = hc->xfer_buff;
++
++			hc->data_pid_start = qtd->data_toggle;
++			break;
++		case DWC_OTG_CONTROL_STATUS:
++			/*
++			 * Direction is opposite of data direction or IN if no
++			 * data.
++			 */
++			DWC_DEBUGPL(DBG_HCDV, "  Control status transaction\n");
++			if (urb->length == 0) {
++				hc->ep_is_in = 1;
++			} else {
++				hc->ep_is_in =
++				    dwc_otg_hcd_is_pipe_out(&urb->pipe_info);
++			}
++			if (hc->ep_is_in) {
++				hc->do_ping = 0;
++			}
++
++			hc->data_pid_start = DWC_OTG_HC_PID_DATA1;
++
++			hc->xfer_len = 0;
++			if (hcd->core_if->dma_enable) {
++				hc->xfer_buff = (uint8_t *) hcd->status_buf_dma;
++			} else {
++				hc->xfer_buff = (uint8_t *) hcd->status_buf;
++			}
++			ptr = NULL;
++			break;
++		}
++		break;
++	case UE_BULK:
++		hc->ep_type = DWC_OTG_EP_TYPE_BULK;
++		break;
++	case UE_INTERRUPT:
++		hc->ep_type = DWC_OTG_EP_TYPE_INTR;
++		break;
++	case UE_ISOCHRONOUS:
++		{
++			struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++
++			hc->ep_type = DWC_OTG_EP_TYPE_ISOC;
++
++			if (hcd->core_if->dma_desc_enable)
++				break;
++
++			frame_desc = &urb->iso_descs[qtd->isoc_frame_index];
++
++			frame_desc->status = 0;
++
++			if (hcd->core_if->dma_enable) {
++				hc->xfer_buff = (uint8_t *) urb->dma;
++			} else {
++				hc->xfer_buff = (uint8_t *) urb->buf;
++			}
++			hc->xfer_buff +=
++			    frame_desc->offset + qtd->isoc_split_offset;
++			hc->xfer_len =
++			    frame_desc->length - qtd->isoc_split_offset;
++
++			/* For non-dword aligned buffers */
++			if (((unsigned long)hc->xfer_buff & 0x3)
++			    && hcd->core_if->dma_enable) {
++				ptr =
++				    (uint8_t *) urb->buf + frame_desc->offset +
++				    qtd->isoc_split_offset;
++			} else
++				ptr = NULL;
++
++			if (hc->xact_pos == DWC_HCSPLIT_XACTPOS_ALL) {
++				if (hc->xfer_len <= 188) {
++					hc->xact_pos = DWC_HCSPLIT_XACTPOS_ALL;
++				} else {
++					hc->xact_pos =
++					    DWC_HCSPLIT_XACTPOS_BEGIN;
++				}
++			}
++		}
++		break;
++	}
++	/* non DWORD-aligned buffer case */
++	if (ptr) {
++		uint32_t buf_size;
++		if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
++			buf_size = hcd->core_if->core_params->max_transfer_size;
++		} else {
++			buf_size = 4096;
++		}
++		if (!qh->dw_align_buf) {
++			qh->dw_align_buf = DWC_DMA_ALLOC_ATOMIC(dev, buf_size,
++							 &qh->dw_align_buf_dma);
++			if (!qh->dw_align_buf) {
++				DWC_ERROR
++				    ("%s: Failed to allocate memory to handle "
++				     "non-dword aligned buffer case\n",
++				     __func__);
++				return;
++			}
++		}
++		if (!hc->ep_is_in) {
++			dwc_memcpy(qh->dw_align_buf, ptr, hc->xfer_len);
++		}
++		hc->align_buff = qh->dw_align_buf_dma;
++	} else {
++		hc->align_buff = 0;
++	}
++
++	if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++	    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++		/*
++		 * This value may be modified when the transfer is started to
++		 * reflect the actual transfer length.
++		 */
++		hc->multi_count = dwc_hb_mult(qh->maxp);
++	}
++
++	if (hcd->core_if->dma_desc_enable)
++		hc->desc_list_addr = qh->desc_list_dma;
++
++	dwc_otg_hc_init(hcd->core_if, hc);
++
++	local_irq_save(flags);
++
++	if (fiq_enable) {
++		local_fiq_disable();
++		fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++	}
++
++	/* Enable the top level host channel interrupt. */
++	intr_enable = (1 << hc->hc_num);
++	DWC_MODIFY_REG32(&hcd->core_if->host_if->host_global_regs->haintmsk, 0, intr_enable);
++
++	/* Make sure host channel interrupts are enabled. */
++	gintmsk.b.hcintr = 1;
++	DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32);
++
++	if (fiq_enable) {
++		fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++		local_fiq_enable();
++	}
++
++	local_irq_restore(flags);
++	hc->qh = qh;
++}
++
++
++/**
++ * fiq_fsm_transaction_suitable() - Test a QH for compatibility with the FIQ
++ * @hcd:	Pointer to the dwc_otg_hcd struct
++ * @qh:	pointer to the endpoint's queue head
++ *
++ * Transaction start/end control flow is grafted onto the existing dwc_otg
++ * mechanisms, to avoid spaghettifying the functions more than they already are.
++ * This function's eligibility check is altered by debug parameter.
++ *
++ * Returns: 0 for unsuitable, 1 implies the FIQ can be enabled for this transaction.
++ */
++
++int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
++{
++	if (qh->do_split) {
++		switch (qh->ep_type) {
++		case UE_CONTROL:
++		case UE_BULK:
++			if (fiq_fsm_mask & (1 << 0))
++				return 1;
++			break;
++		case UE_INTERRUPT:
++		case UE_ISOCHRONOUS:
++			if (fiq_fsm_mask & (1 << 1))
++				return 1;
++			break;
++		default:
++			break;
++		}
++	} else if (qh->ep_type == UE_ISOCHRONOUS) {
++		if (fiq_fsm_mask & (1 << 2)) {
++			/* ISOCH support. We test for compatibility:
++			 * - DWORD aligned buffers
++			 * - Must be at least 2 transfers (otherwise pointless to use the FIQ)
++			 * If yes, then the fsm enqueue function will handle the state machine setup.
++			 */
++			dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++			dwc_otg_hcd_urb_t *urb = qtd->urb;
++			dwc_dma_t ptr;
++			int i;
++
++			if (urb->packet_count < 2)
++				return 0;
++			for (i = 0; i < urb->packet_count; i++) {
++				ptr = urb->dma + urb->iso_descs[i].offset;
++				if (ptr & 0x3)
++					return 0;
++			}
++			return 1;
++		}
++	}
++	return 0;
++}
++
++/**
++ * fiq_fsm_setup_periodic_dma() - Set up DMA bounce buffers
++ * @hcd: Pointer to the dwc_otg_hcd struct
++ * @qh: Pointer to the endpoint's queue head
++ *
++ * Periodic split transactions are transmitted modulo 188 bytes.
++ * This necessitates slicing data up into buckets for isochronous out
++ * and fixing up the DMA address for all IN transfers.
++ *
++ * Returns 1 if the DMA bounce buffers have been used, 0 if the default
++ * HC buffer has been used.
++ */
++int fiq_fsm_setup_periodic_dma(dwc_otg_hcd_t *hcd, struct fiq_channel_state *st, dwc_otg_qh_t *qh)
++ {
++	int frame_length, i = 0;
++	uint8_t *ptr = NULL;
++	dwc_hc_t *hc = qh->channel;
++	struct fiq_dma_blob *blob;
++	struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++
++	for (i = 0; i < 6; i++) {
++		st->dma_info.slot_len[i] = 255;
++	}
++	st->dma_info.index = 0;
++	i = 0;
++	if (hc->ep_is_in) {
++		/*
++		 * Set dma_regs to bounce buffer. FIQ will update the
++		 * state depending on transaction progress.
++		 * Pointer arithmetic on hcd->fiq_state->dma_base (a dma_addr_t)
++		 * to point it to the correct offset in the allocated buffers.
++		 */
++		blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
++		st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
++
++		/* Calculate the max number of CSPLITS such that the FIQ can time out
++		 * a transaction if it fails.
++		 */
++		frame_length = st->hcchar_copy.b.mps;
++		do {
++			i++;
++			frame_length -= 188;
++		} while (frame_length >= 0);
++		st->nrpackets = i;
++		return 1;
++	} else {
++		if (qh->ep_type == UE_ISOCHRONOUS) {
++
++			dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++
++			frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			frame_length = frame_desc->length;
++
++			/* Virtual address for bounce buffers */
++			blob = hcd->fiq_dmab;
++
++			ptr = qtd->urb->buf + frame_desc->offset;
++			if (frame_length == 0) {
++				/*
++				 * for isochronous transactions, we must still transmit a packet
++				 * even if the length is zero.
++				 */
++				st->dma_info.slot_len[0] = 0;
++				st->nrpackets = 1;
++			} else {
++				do {
++					if (frame_length <= 188) {
++						dwc_memcpy(&blob->channel[hc->hc_num].index[i].buf[0], ptr, frame_length);
++						st->dma_info.slot_len[i] = frame_length;
++						ptr += frame_length;
++					} else {
++						dwc_memcpy(&blob->channel[hc->hc_num].index[i].buf[0], ptr, 188);
++						st->dma_info.slot_len[i] = 188;
++						ptr += 188;
++					}
++					i++;
++					frame_length -= 188;
++				} while (frame_length > 0);
++				st->nrpackets = i;
++			}
++			ptr = qtd->urb->buf + frame_desc->offset;
++			/*
++			 * Point the HC at the DMA address of the bounce buffers
++			 *
++			 * Pointer arithmetic on hcd->fiq_state->dma_base (a
++			 * dma_addr_t) to point it to the correct offset in the
++			 * allocated buffers.
++			 */
++			blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
++			st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
++
++			/* fixup xfersize to the actual packet size */
++			st->hctsiz_copy.b.pid = 0;
++			st->hctsiz_copy.b.xfersize = st->dma_info.slot_len[0];
++			return 1;
++		} else {
++			/* For interrupt, single OUT packet required, goes in the SSPLIT from hc_buff. */
++			return 0;
++		}
++	}
++}
++
++/**
++ * fiq_fsm_np_tt_contended() - Avoid performing contended non-periodic transfers
++ * @hcd: Pointer to the dwc_otg_hcd struct
++ * @qh: Pointer to the endpoint's queue head
++ *
++ * Certain hub chips don't differentiate between IN and OUT non-periodic pipes
++ * with the same endpoint number. If transfers get completed out of order
++ * (disregarding the direction token) then the hub can lock up
++ * or return erroneous responses.
++ *
++ * Returns 1 if initiating the transfer would cause contention, 0 otherwise.
++ */
++int fiq_fsm_np_tt_contended(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
++{
++	int i;
++	struct fiq_channel_state *st;
++	int dev_addr = qh->channel->dev_addr;
++	int ep_num = qh->channel->ep_num;
++	for (i = 0; i < hcd->core_if->core_params->host_channels; i++) {
++		if (i == qh->channel->hc_num)
++			continue;
++		st = &hcd->fiq_state->channel[i];
++		switch (st->fsm) {
++		case FIQ_NP_SSPLIT_STARTED:
++		case FIQ_NP_SSPLIT_RETRY:
++		case FIQ_NP_SSPLIT_PENDING:
++		case FIQ_NP_OUT_CSPLIT_RETRY:
++		case FIQ_NP_IN_CSPLIT_RETRY:
++			if (st->hcchar_copy.b.devaddr == dev_addr &&
++				st->hcchar_copy.b.epnum == ep_num)
++				return 1;
++			break;
++		default:
++			break;
++		}
++	}
++	return 0;
++}
++
++/*
++ * Pushing a periodic request into the queue near the EOF1 point
++ * in a microframe causes erroneous behaviour (frmovrun) interrupt.
++ * Usually, the request goes out on the bus causing a transfer but
++ * the core does not transfer the data to memory.
++ * This guard interval (in number of 60MHz clocks) is required which
++ * must cater for CPU latency between reading the value and enabling
++ * the channel.
++ */
++#define PERIODIC_FRREM_BACKOFF 1000
++
++int fiq_fsm_queue_isoc_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
++{
++	dwc_hc_t *hc = qh->channel;
++	dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num];
++	dwc_otg_qtd_t *qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++	int frame;
++	struct fiq_channel_state *st = &hcd->fiq_state->channel[hc->hc_num];
++	int xfer_len, nrpackets;
++	hcdma_data_t hcdma;
++	hfnum_data_t hfnum;
++
++	if (st->fsm != FIQ_PASSTHROUGH)
++		return 0;
++
++	st->nr_errors = 0;
++
++	st->hcchar_copy.d32 = 0;
++	st->hcchar_copy.b.mps = hc->max_packet;
++	st->hcchar_copy.b.epdir = hc->ep_is_in;
++	st->hcchar_copy.b.devaddr = hc->dev_addr;
++	st->hcchar_copy.b.epnum = hc->ep_num;
++	st->hcchar_copy.b.eptype = hc->ep_type;
++
++	st->hcintmsk_copy.b.chhltd = 1;
++
++	frame = dwc_otg_hcd_get_frame_number(hcd);
++	st->hcchar_copy.b.oddfrm = (frame & 0x1) ? 0 : 1;
++
++	st->hcchar_copy.b.lspddev = 0;
++	/* Enable the channel later as a final register write. */
++
++	st->hcsplt_copy.d32 = 0;
++
++	st->hs_isoc_info.iso_desc = (struct dwc_otg_hcd_iso_packet_desc *) &qtd->urb->iso_descs;
++	st->hs_isoc_info.nrframes = qtd->urb->packet_count;
++	/* grab the next DMA address offset from the array */
++	st->hcdma_copy.d32 = qtd->urb->dma;
++	hcdma.d32 = st->hcdma_copy.d32 + st->hs_isoc_info.iso_desc[0].offset;
++
++	/* We need to set multi_count. This is a bit tricky - has to be set per-transaction as
++	 * the core needs to be told to send the correct number. Caution: for IN transfers,
++	 * this is always set to the maximum size of the endpoint. */
++	xfer_len = st->hs_isoc_info.iso_desc[0].length;
++	nrpackets = (xfer_len + st->hcchar_copy.b.mps - 1) / st->hcchar_copy.b.mps;
++	if (nrpackets == 0)
++		nrpackets = 1;
++	st->hcchar_copy.b.multicnt = nrpackets;
++	st->hctsiz_copy.b.pktcnt = nrpackets;
++
++	/* Initial PID also needs to be set */
++	if (st->hcchar_copy.b.epdir == 0) {
++		st->hctsiz_copy.b.xfersize = xfer_len;
++		switch (st->hcchar_copy.b.multicnt) {
++		case 1:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA0;
++			break;
++		case 2:
++		case 3:
++			st->hctsiz_copy.b.pid = DWC_PID_MDATA;
++			break;
++		}
++
++	} else {
++		st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps;
++		switch (st->hcchar_copy.b.multicnt) {
++		case 1:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA0;
++			break;
++		case 2:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA1;
++			break;
++		case 3:
++			st->hctsiz_copy.b.pid = DWC_PID_DATA2;
++			break;
++		}
++	}
++
++	st->hs_isoc_info.stride = qh->interval;
++	st->uframe_sleeps = 0;
++
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "FSMQ  %01d ", hc->hc_num);
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcchar_copy.d32);
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hctsiz_copy.d32);
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcdma_copy.d32);
++	hfnum.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum);
++	local_fiq_disable();
++	fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++	DWC_WRITE_REG32(&hc_regs->hctsiz, st->hctsiz_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcsplt, st->hcsplt_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcdma, st->hcdma_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, st->hcintmsk_copy.d32);
++	if (hfnum.b.frrem < PERIODIC_FRREM_BACKOFF) {
++		/* Prevent queueing near EOF1. Bad things happen if a periodic
++		 * split transaction is queued very close to EOF. SOF interrupt handler
++		 * will wake this channel at the next interrupt.
++		 */
++		st->fsm = FIQ_HS_ISOC_SLEEPING;
++		st->uframe_sleeps = 1;
++	} else {
++		st->fsm = FIQ_HS_ISOC_TURBO;
++		st->hcchar_copy.b.chen = 1;
++		DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32);
++	}
++	mb();
++	st->hcchar_copy.b.chen = 0;
++	fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++	local_fiq_enable();
++	return 0;
++}
++
++
++/**
++ * fiq_fsm_queue_split_transaction() - Set up a host channel and FIQ state
++ * @hcd: Pointer to the dwc_otg_hcd struct
++ * @qh: Pointer to the endpoint's queue head
++ *
++ * This overrides the dwc_otg driver's normal method of queueing a transaction.
++ * Called from dwc_otg_hcd_queue_transactions(), this performs specific setup
++ * for the nominated host channel.
++ *
++ * For periodic transfers, it also peeks at the FIQ state to see if an immediate
++ * start is possible. If not, then the FIQ is left to start the transfer.
++ */
++int fiq_fsm_queue_split_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh)
++{
++	int start_immediate = 1, i;
++	hfnum_data_t hfnum;
++	dwc_hc_t *hc = qh->channel;
++	dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[hc->hc_num];
++	/* Program HC registers, setup FIQ_state, examine FIQ if periodic, start transfer (not if uframe 5) */
++	int hub_addr, port_addr, frame, uframe;
++	struct fiq_channel_state *st = &hcd->fiq_state->channel[hc->hc_num];
++
++	/*
++	 * Non-periodic channel assignments stay in the non_periodic_active queue.
++	 * Therefore we get repeatedly called until the FIQ's done processing this channel.
++	 */
++	if (qh->channel->xfer_started == 1)
++		return 0;
++
++	if (st->fsm != FIQ_PASSTHROUGH) {
++		pr_warn_ratelimited("%s:%d: Queue called for an active channel\n", __func__, __LINE__);
++		return 0;
++	}
++
++	qh->channel->xfer_started = 1;
++
++	st->nr_errors = 0;
++
++	st->hcchar_copy.d32 = 0;
++	st->hcchar_copy.b.mps = min_t(uint32_t, hc->xfer_len, hc->max_packet);
++	st->hcchar_copy.b.epdir = hc->ep_is_in;
++	st->hcchar_copy.b.devaddr = hc->dev_addr;
++	st->hcchar_copy.b.epnum = hc->ep_num;
++	st->hcchar_copy.b.eptype = hc->ep_type;
++	if (hc->ep_type & 0x1) {
++		if (hc->ep_is_in)
++			st->hcchar_copy.b.multicnt = 3;
++		else
++			/* Docs say set this to 1, but driver sets to 0! */
++			st->hcchar_copy.b.multicnt = 0;
++	} else {
++		st->hcchar_copy.b.multicnt = 1;
++		st->hcchar_copy.b.oddfrm = 0;
++	}
++	st->hcchar_copy.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW) ? 1 : 0;
++	/* Enable the channel later as a final register write. */
++
++	st->hcsplt_copy.d32 = 0;
++	if(qh->do_split) {
++		hcd->fops->hub_info(hcd, DWC_CIRCLEQ_FIRST(&qh->qtd_list)->urb->priv, &hub_addr, &port_addr);
++		st->hcsplt_copy.b.compsplt = 0;
++		st->hcsplt_copy.b.spltena = 1;
++		// XACTPOS is for isoc-out only but needs initialising anyway.
++		st->hcsplt_copy.b.xactpos = ISOC_XACTPOS_ALL;
++		if((qh->ep_type == DWC_OTG_EP_TYPE_ISOC) && (!qh->ep_is_in)) {
++			/* For packetsize 0 < L < 188, ISOC_XACTPOS_ALL.
++			 * for longer than this, ISOC_XACTPOS_BEGIN and the FIQ
++			 * will update as necessary.
++			 */
++			if (hc->xfer_len > 188) {
++				st->hcsplt_copy.b.xactpos = ISOC_XACTPOS_BEGIN;
++			}
++		}
++		st->hcsplt_copy.b.hubaddr = (uint8_t) hub_addr;
++		st->hcsplt_copy.b.prtaddr = (uint8_t) port_addr;
++		st->hub_addr = hub_addr;
++		st->port_addr = port_addr;
++	}
++
++	st->hctsiz_copy.d32 = 0;
++	st->hctsiz_copy.b.dopng = 0;
++	st->hctsiz_copy.b.pid = hc->data_pid_start;
++
++	if (hc->ep_is_in || (hc->xfer_len > hc->max_packet)) {
++		hc->xfer_len = min_t(uint32_t, hc->xfer_len, hc->max_packet);
++	} else if (!hc->ep_is_in && (hc->xfer_len > 188)) {
++		hc->xfer_len = 188;
++	}
++	st->hctsiz_copy.b.xfersize = hc->xfer_len;
++
++	st->hctsiz_copy.b.pktcnt = 1;
++
++	if (hc->ep_type & 0x1) {
++		/*
++		 * For potentially multi-packet transfers, must use the DMA bounce buffers. For IN transfers,
++		 * the DMA address is the address of the first 188byte slot buffer in the bounce buffer array.
++		 * For multi-packet OUT transfers, we need to copy the data into the bounce buffer array so the FIQ can punt
++		 * the right address out as necessary. hc->xfer_buff and hc->xfer_len have already been set
++		 * in assign_and_init_hc(), but this is for the eventual transaction completion only. The FIQ
++		 * must not touch internal driver state.
++		 */
++		if(!fiq_fsm_setup_periodic_dma(hcd, st, qh)) {
++			if (hc->align_buff) {
++				st->hcdma_copy.d32 = hc->align_buff;
++			} else {
++				st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF);
++			}
++		}
++	} else {
++		if (hc->align_buff) {
++			st->hcdma_copy.d32 = hc->align_buff;
++		} else {
++			st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF);
++		}
++	}
++	/* The FIQ depends upon no other interrupts being enabled except channel halt.
++	 * Fixup channel interrupt mask. */
++	st->hcintmsk_copy.d32 = 0;
++	st->hcintmsk_copy.b.chhltd = 1;
++	st->hcintmsk_copy.b.ahberr = 1;
++
++	/* Hack courtesy of FreeBSD: apparently forcing Interrupt Split transactions
++	 * as Control puts the transfer into the non-periodic request queue and the
++	 * non-periodic handler in the hub. Makes things lots easier.
++	 */
++	if ((fiq_fsm_mask & 0x8) && hc->ep_type == UE_INTERRUPT) {
++		st->hcchar_copy.b.multicnt = 0;
++		st->hcchar_copy.b.oddfrm = 0;
++		st->hcchar_copy.b.eptype = UE_CONTROL;
++		if (hc->align_buff) {
++			st->hcdma_copy.d32 = hc->align_buff;
++		} else {
++			st->hcdma_copy.d32 = ((unsigned long) hc->xfer_buff & 0xFFFFFFFF);
++		}
++	}
++	DWC_WRITE_REG32(&hc_regs->hcdma, st->hcdma_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hctsiz, st->hctsiz_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcsplt, st->hcsplt_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32);
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, st->hcintmsk_copy.d32);
++
++	local_fiq_disable();
++	fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++
++	if (hc->ep_type & 0x1) {
++		hfnum.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum);
++		frame = (hfnum.b.frnum & ~0x7) >> 3;
++		uframe = hfnum.b.frnum & 0x7;
++		if (hfnum.b.frrem < PERIODIC_FRREM_BACKOFF) {
++			/* Prevent queueing near EOF1. Bad things happen if a periodic
++			 * split transaction is queued very close to EOF.
++			 */
++			start_immediate = 0;
++		} else if (uframe == 5) {
++			start_immediate = 0;
++		} else if (hc->ep_type == UE_ISOCHRONOUS && !hc->ep_is_in) {
++			start_immediate = 0;
++		} else if (hc->ep_is_in && fiq_fsm_too_late(hcd->fiq_state, hc->hc_num)) {
++			start_immediate = 0;
++		} else {
++			/* Search through all host channels to determine if a transaction
++			 * is currently in progress */
++			for (i = 0; i < hcd->core_if->core_params->host_channels; i++) {
++				if (i == hc->hc_num || hcd->fiq_state->channel[i].fsm == FIQ_PASSTHROUGH)
++					continue;
++				switch (hcd->fiq_state->channel[i].fsm) {
++				/* TT is reserved for channels that are in the middle of a periodic
++				 * split transaction.
++				 */
++				case FIQ_PER_SSPLIT_STARTED:
++				case FIQ_PER_CSPLIT_WAIT:
++				case FIQ_PER_CSPLIT_NYET1:
++				case FIQ_PER_CSPLIT_POLL:
++				case FIQ_PER_ISO_OUT_ACTIVE:
++				case FIQ_PER_ISO_OUT_LAST:
++					if (hcd->fiq_state->channel[i].hub_addr == hub_addr &&
++							hcd->fiq_state->channel[i].port_addr == port_addr) {
++						start_immediate = 0;
++					}
++					break;
++				default:
++					break;
++				}
++				if (!start_immediate)
++					break;
++			}
++		}
++	}
++	if ((fiq_fsm_mask & 0x8) && hc->ep_type == UE_INTERRUPT)
++		start_immediate = 1;
++
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "FSMQ %01d %01d", hc->hc_num, start_immediate);
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "%08d", hfnum.b.frrem);
++	//fiq_print(FIQDBG_INT, hcd->fiq_state, "H:%02dP:%02d", hub_addr, port_addr);
++	//fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hctsiz_copy.d32);
++	//fiq_print(FIQDBG_INT, hcd->fiq_state, "%08x", st->hcdma_copy.d32);
++	switch (hc->ep_type) {
++		case UE_CONTROL:
++		case UE_BULK:
++			if (fiq_fsm_np_tt_contended(hcd, qh)) {
++				st->fsm = FIQ_NP_SSPLIT_PENDING;
++				start_immediate = 0;
++			} else {
++				st->fsm = FIQ_NP_SSPLIT_STARTED;
++			}
++			break;
++		case UE_ISOCHRONOUS:
++			if (hc->ep_is_in) {
++				if (start_immediate) {
++					st->fsm = FIQ_PER_SSPLIT_STARTED;
++				} else {
++					st->fsm = FIQ_PER_SSPLIT_QUEUED;
++				}
++			} else {
++				if (start_immediate) {
++					/* Single-isoc OUT packets don't require FIQ involvement */
++					if (st->nrpackets == 1) {
++						st->fsm = FIQ_PER_ISO_OUT_LAST;
++					} else {
++						st->fsm = FIQ_PER_ISO_OUT_ACTIVE;
++					}
++				} else {
++					st->fsm = FIQ_PER_ISO_OUT_PENDING;
++				}
++			}
++			break;
++		case UE_INTERRUPT:
++			if (fiq_fsm_mask & 0x8) {
++				if (fiq_fsm_np_tt_contended(hcd, qh)) {
++					st->fsm = FIQ_NP_SSPLIT_PENDING;
++					start_immediate = 0;
++				} else {
++					st->fsm = FIQ_NP_SSPLIT_STARTED;
++				}
++			} else if (start_immediate) {
++					st->fsm = FIQ_PER_SSPLIT_STARTED;
++			} else {
++				st->fsm = FIQ_PER_SSPLIT_QUEUED;
++			}
++		default:
++			break;
++	}
++	if (start_immediate) {
++		/* Set the oddfrm bit as close as possible to actual queueing */
++		frame = dwc_otg_hcd_get_frame_number(hcd);
++		st->expected_uframe = (frame + 1) & 0x3FFF;
++		st->hcchar_copy.b.oddfrm = (frame & 0x1) ? 0 : 1;
++		st->hcchar_copy.b.chen = 1;
++		DWC_WRITE_REG32(&hc_regs->hcchar, st->hcchar_copy.d32);
++	}
++	mb();
++	fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++	local_fiq_enable();
++	return 0;
++}
++
++
++/**
++ * This function selects transactions from the HCD transfer schedule and
++ * assigns them to available host channels. It is called from HCD interrupt
++ * handler functions.
++ *
++ * @param hcd The HCD state structure.
++ *
++ * @return The types of new transactions that were assigned to host channels.
++ */
++dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t * hcd)
++{
++	dwc_list_link_t *qh_ptr;
++	dwc_otg_qh_t *qh;
++	int num_channels;
++	dwc_otg_transaction_type_e ret_val = DWC_OTG_TRANSACTION_NONE;
++
++#ifdef DEBUG_HOST_CHANNELS
++	last_sel_trans_num_per_scheduled = 0;
++	last_sel_trans_num_nonper_scheduled = 0;
++	last_sel_trans_num_avail_hc_at_start = hcd->available_host_channels;
++#endif /* DEBUG_HOST_CHANNELS */
++
++	/* Process entries in the periodic ready list. */
++	qh_ptr = DWC_LIST_FIRST(&hcd->periodic_sched_ready);
++
++	while (qh_ptr != &hcd->periodic_sched_ready &&
++	       !DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) {
++
++		qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry);
++
++		if (microframe_schedule) {
++			// Make sure we leave one channel for non periodic transactions.
++			if (hcd->available_host_channels <= 1) {
++				break;
++			}
++			hcd->available_host_channels--;
++#ifdef DEBUG_HOST_CHANNELS
++			last_sel_trans_num_per_scheduled++;
++#endif /* DEBUG_HOST_CHANNELS */
++		}
++		qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry);
++		assign_and_init_hc(hcd, qh);
++
++		/*
++		 * Move the QH from the periodic ready schedule to the
++		 * periodic assigned schedule.
++		 */
++		qh_ptr = DWC_LIST_NEXT(qh_ptr);
++		DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned,
++				   &qh->qh_list_entry);
++	}
++
++	/*
++	 * Process entries in the inactive portion of the non-periodic
++	 * schedule. Some free host channels may not be used if they are
++	 * reserved for periodic transfers.
++	 */
++	qh_ptr = hcd->non_periodic_sched_inactive.next;
++	num_channels = hcd->core_if->core_params->host_channels;
++	while (qh_ptr != &hcd->non_periodic_sched_inactive &&
++	       (microframe_schedule || hcd->non_periodic_channels <
++		num_channels - hcd->periodic_channels) &&
++	       !DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) {
++
++		qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry);
++		/*
++		 * Check to see if this is a NAK'd retransmit, in which case ignore for retransmission
++		 * we hold off on bulk retransmissions to reduce NAK interrupt overhead for full-speed
++		 * cheeky devices that just hold off using NAKs
++		 */
++		if (fiq_enable && nak_holdoff && qh->do_split) {
++			if (qh->nak_frame != 0xffff) {
++				uint16_t next_frame = dwc_frame_num_inc(qh->nak_frame, (qh->ep_type == UE_BULK) ? nak_holdoff : 8);
++				uint16_t frame = dwc_otg_hcd_get_frame_number(hcd);
++				if (dwc_frame_num_le(frame, next_frame)) {
++					if(dwc_frame_num_le(next_frame, hcd->fiq_state->next_sched_frame)) {
++						hcd->fiq_state->next_sched_frame = next_frame;
++					}
++					qh_ptr = DWC_LIST_NEXT(qh_ptr);
++					continue;
++				} else {
++					qh->nak_frame = 0xFFFF;
++				}
++			}
++		}
++
++		if (microframe_schedule) {
++				if (hcd->available_host_channels < 1) {
++					break;
++				}
++				hcd->available_host_channels--;
++#ifdef DEBUG_HOST_CHANNELS
++				last_sel_trans_num_nonper_scheduled++;
++#endif /* DEBUG_HOST_CHANNELS */
++		}
++
++		assign_and_init_hc(hcd, qh);
++
++		/*
++		 * Move the QH from the non-periodic inactive schedule to the
++		 * non-periodic active schedule.
++		 */
++		qh_ptr = DWC_LIST_NEXT(qh_ptr);
++		DWC_LIST_MOVE_HEAD(&hcd->non_periodic_sched_active,
++				   &qh->qh_list_entry);
++
++		if (!microframe_schedule)
++			hcd->non_periodic_channels++;
++	}
++	/* we moved a non-periodic QH to the active schedule. If the inactive queue is empty,
++	 * stop the FIQ from kicking us. We could potentially still have elements here if we
++	 * ran out of host channels.
++	 */
++	if (fiq_enable) {
++		if (DWC_LIST_EMPTY(&hcd->non_periodic_sched_inactive)) {
++			hcd->fiq_state->kick_np_queues = 0;
++		} else {
++			/* For each entry remaining in the NP inactive queue,
++			* if this a NAK'd retransmit then don't set the kick flag.
++			*/
++			if(nak_holdoff) {
++				DWC_LIST_FOREACH(qh_ptr, &hcd->non_periodic_sched_inactive) {
++					qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry);
++					if (qh->nak_frame == 0xFFFF) {
++						hcd->fiq_state->kick_np_queues = 1;
++					}
++				}
++			}
++		}
++	}
++	if(!DWC_LIST_EMPTY(&hcd->periodic_sched_assigned))
++		ret_val |= DWC_OTG_TRANSACTION_PERIODIC;
++
++	if(!DWC_LIST_EMPTY(&hcd->non_periodic_sched_active))
++		ret_val |= DWC_OTG_TRANSACTION_NON_PERIODIC;
++
++
++#ifdef DEBUG_HOST_CHANNELS
++	last_sel_trans_num_avail_hc_at_end = hcd->available_host_channels;
++#endif /* DEBUG_HOST_CHANNELS */
++	return ret_val;
++}
++
++/**
++ * Attempts to queue a single transaction request for a host channel
++ * associated with either a periodic or non-periodic transfer. This function
++ * assumes that there is space available in the appropriate request queue. For
++ * an OUT transfer or SETUP transaction in Slave mode, it checks whether space
++ * is available in the appropriate Tx FIFO.
++ *
++ * @param hcd The HCD state structure.
++ * @param hc Host channel descriptor associated with either a periodic or
++ * non-periodic transfer.
++ * @param fifo_dwords_avail Number of DWORDs available in the periodic Tx
++ * FIFO for periodic transfers or the non-periodic Tx FIFO for non-periodic
++ * transfers.
++ *
++ * @return 1 if a request is queued and more requests may be needed to
++ * complete the transfer, 0 if no more requests are required for this
++ * transfer, -1 if there is insufficient space in the Tx FIFO.
++ */
++static int queue_transaction(dwc_otg_hcd_t * hcd,
++			     dwc_hc_t * hc, uint16_t fifo_dwords_avail)
++{
++	int retval;
++
++	if (hcd->core_if->dma_enable) {
++		if (hcd->core_if->dma_desc_enable) {
++			if (!hc->xfer_started
++			    || (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)) {
++				dwc_otg_hcd_start_xfer_ddma(hcd, hc->qh);
++				hc->qh->ping_state = 0;
++			}
++		} else if (!hc->xfer_started) {
++			if (fiq_fsm_enable && hc->error_state) {
++				hcd->fiq_state->channel[hc->hc_num].nr_errors =
++					DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list)->error_count;
++				hcd->fiq_state->channel[hc->hc_num].fsm =
++					FIQ_PASSTHROUGH_ERRORSTATE;
++			}
++			dwc_otg_hc_start_transfer(hcd->core_if, hc);
++			hc->qh->ping_state = 0;
++		}
++		retval = 0;
++	} else if (hc->halt_pending) {
++		/* Don't queue a request if the channel has been halted. */
++		retval = 0;
++	} else if (hc->halt_on_queue) {
++		dwc_otg_hc_halt(hcd->core_if, hc, hc->halt_status);
++		retval = 0;
++	} else if (hc->do_ping) {
++		if (!hc->xfer_started) {
++			dwc_otg_hc_start_transfer(hcd->core_if, hc);
++		}
++		retval = 0;
++	} else if (!hc->ep_is_in || hc->data_pid_start == DWC_OTG_HC_PID_SETUP) {
++		if ((fifo_dwords_avail * 4) >= hc->max_packet) {
++			if (!hc->xfer_started) {
++				dwc_otg_hc_start_transfer(hcd->core_if, hc);
++				retval = 1;
++			} else {
++				retval =
++				    dwc_otg_hc_continue_transfer(hcd->core_if,
++								 hc);
++			}
++		} else {
++			retval = -1;
++		}
++	} else {
++		if (!hc->xfer_started) {
++			dwc_otg_hc_start_transfer(hcd->core_if, hc);
++			retval = 1;
++		} else {
++			retval = dwc_otg_hc_continue_transfer(hcd->core_if, hc);
++		}
++	}
++
++	return retval;
++}
++
++/**
++ * Processes periodic channels for the next frame and queues transactions for
++ * these channels to the DWC_otg controller. After queueing transactions, the
++ * Periodic Tx FIFO Empty interrupt is enabled if there are more transactions
++ * to queue as Periodic Tx FIFO or request queue space becomes available.
++ * Otherwise, the Periodic Tx FIFO Empty interrupt is disabled.
++ */
++static void process_periodic_channels(dwc_otg_hcd_t * hcd)
++{
++	hptxsts_data_t tx_status;
++	dwc_list_link_t *qh_ptr;
++	dwc_otg_qh_t *qh;
++	int status = 0;
++	int no_queue_space = 0;
++	int no_fifo_space = 0;
++
++	dwc_otg_host_global_regs_t *host_regs;
++	host_regs = hcd->core_if->host_if->host_global_regs;
++
++	DWC_DEBUGPL(DBG_HCDV, "Queue periodic transactions\n");
++#ifdef DEBUG
++	tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts);
++	DWC_DEBUGPL(DBG_HCDV,
++		    "  P Tx Req Queue Space Avail (before queue): %d\n",
++		    tx_status.b.ptxqspcavail);
++	DWC_DEBUGPL(DBG_HCDV, "  P Tx FIFO Space Avail (before queue): %d\n",
++		    tx_status.b.ptxfspcavail);
++#endif
++
++	qh_ptr = hcd->periodic_sched_assigned.next;
++	while (qh_ptr != &hcd->periodic_sched_assigned) {
++		tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts);
++		if (tx_status.b.ptxqspcavail == 0) {
++			no_queue_space = 1;
++			break;
++		}
++
++		qh = DWC_LIST_ENTRY(qh_ptr, dwc_otg_qh_t, qh_list_entry);
++
++		// Do not send a split start transaction any later than frame .6
++		// Note, we have to schedule a periodic in .5 to make it go in .6
++		if(fiq_fsm_enable && qh->do_split && ((dwc_otg_hcd_get_frame_number(hcd) + 1) & 7) > 6)
++		{
++			qh_ptr = qh_ptr->next;
++			hcd->fiq_state->next_sched_frame = dwc_otg_hcd_get_frame_number(hcd) | 7;
++			continue;
++		}
++
++		if (fiq_fsm_enable && fiq_fsm_transaction_suitable(hcd, qh)) {
++			if (qh->do_split)
++				fiq_fsm_queue_split_transaction(hcd, qh);
++			else
++				fiq_fsm_queue_isoc_transaction(hcd, qh);
++		} else {
++
++			/*
++			 * Set a flag if we're queueing high-bandwidth in slave mode.
++			 * The flag prevents any halts to get into the request queue in
++			 * the middle of multiple high-bandwidth packets getting queued.
++			 */
++			if (!hcd->core_if->dma_enable && qh->channel->multi_count > 1) {
++				hcd->core_if->queuing_high_bandwidth = 1;
++			}
++			status = queue_transaction(hcd, qh->channel,
++							tx_status.b.ptxfspcavail);
++			if (status < 0) {
++				no_fifo_space = 1;
++				break;
++			}
++		}
++
++		/*
++		 * In Slave mode, stay on the current transfer until there is
++		 * nothing more to do or the high-bandwidth request count is
++		 * reached. In DMA mode, only need to queue one request. The
++		 * controller automatically handles multiple packets for
++		 * high-bandwidth transfers.
++		 */
++		if (hcd->core_if->dma_enable || status == 0 ||
++		    qh->channel->requests == qh->channel->multi_count) {
++			qh_ptr = qh_ptr->next;
++			/*
++			 * Move the QH from the periodic assigned schedule to
++			 * the periodic queued schedule.
++			 */
++			DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_queued,
++					   &qh->qh_list_entry);
++
++			/* done queuing high bandwidth */
++			hcd->core_if->queuing_high_bandwidth = 0;
++		}
++	}
++
++	if (!hcd->core_if->dma_enable) {
++		dwc_otg_core_global_regs_t *global_regs;
++		gintmsk_data_t intr_mask = {.d32 = 0 };
++
++		global_regs = hcd->core_if->core_global_regs;
++		intr_mask.b.ptxfempty = 1;
++#ifdef DEBUG
++		tx_status.d32 = DWC_READ_REG32(&host_regs->hptxsts);
++		DWC_DEBUGPL(DBG_HCDV,
++			    "  P Tx Req Queue Space Avail (after queue): %d\n",
++			    tx_status.b.ptxqspcavail);
++		DWC_DEBUGPL(DBG_HCDV,
++			    "  P Tx FIFO Space Avail (after queue): %d\n",
++			    tx_status.b.ptxfspcavail);
++#endif
++		if (!DWC_LIST_EMPTY(&hcd->periodic_sched_assigned) ||
++		    no_queue_space || no_fifo_space) {
++			/*
++			 * May need to queue more transactions as the request
++			 * queue or Tx FIFO empties. Enable the periodic Tx
++			 * FIFO empty interrupt. (Always use the half-empty
++			 * level to ensure that new requests are loaded as
++			 * soon as possible.)
++			 */
++			DWC_MODIFY_REG32(&global_regs->gintmsk, 0,
++					 intr_mask.d32);
++		} else {
++			/*
++			 * Disable the Tx FIFO empty interrupt since there are
++			 * no more transactions that need to be queued right
++			 * now. This function is called from interrupt
++			 * handlers to queue more transactions as transfer
++			 * states change.
++			 */
++			DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32,
++					 0);
++		}
++	}
++}
++
++/**
++ * Processes active non-periodic channels and queues transactions for these
++ * channels to the DWC_otg controller. After queueing transactions, the NP Tx
++ * FIFO Empty interrupt is enabled if there are more transactions to queue as
++ * NP Tx FIFO or request queue space becomes available. Otherwise, the NP Tx
++ * FIFO Empty interrupt is disabled.
++ */
++static void process_non_periodic_channels(dwc_otg_hcd_t * hcd)
++{
++	gnptxsts_data_t tx_status;
++	dwc_list_link_t *orig_qh_ptr;
++	dwc_otg_qh_t *qh;
++	int status;
++	int no_queue_space = 0;
++	int no_fifo_space = 0;
++	int more_to_do = 0;
++
++	dwc_otg_core_global_regs_t *global_regs =
++	    hcd->core_if->core_global_regs;
++
++	DWC_DEBUGPL(DBG_HCDV, "Queue non-periodic transactions\n");
++#ifdef DEBUG
++	tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++	DWC_DEBUGPL(DBG_HCDV,
++		    "  NP Tx Req Queue Space Avail (before queue): %d\n",
++		    tx_status.b.nptxqspcavail);
++	DWC_DEBUGPL(DBG_HCDV, "  NP Tx FIFO Space Avail (before queue): %d\n",
++		    tx_status.b.nptxfspcavail);
++#endif
++	/*
++	 * Keep track of the starting point. Skip over the start-of-list
++	 * entry.
++	 */
++	if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) {
++		hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next;
++	}
++	orig_qh_ptr = hcd->non_periodic_qh_ptr;
++
++	/*
++	 * Process once through the active list or until no more space is
++	 * available in the request queue or the Tx FIFO.
++	 */
++	do {
++		tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++		if (!hcd->core_if->dma_enable && tx_status.b.nptxqspcavail == 0) {
++			no_queue_space = 1;
++			break;
++		}
++
++		qh = DWC_LIST_ENTRY(hcd->non_periodic_qh_ptr, dwc_otg_qh_t,
++				    qh_list_entry);
++
++		if(fiq_fsm_enable && fiq_fsm_transaction_suitable(hcd, qh)) {
++			fiq_fsm_queue_split_transaction(hcd, qh);
++		} else {
++			status = queue_transaction(hcd, qh->channel,
++						tx_status.b.nptxfspcavail);
++
++			if (status > 0) {
++				more_to_do = 1;
++			} else if (status < 0) {
++				no_fifo_space = 1;
++				break;
++			}
++		}
++		/* Advance to next QH, skipping start-of-list entry. */
++		hcd->non_periodic_qh_ptr = hcd->non_periodic_qh_ptr->next;
++		if (hcd->non_periodic_qh_ptr == &hcd->non_periodic_sched_active) {
++			hcd->non_periodic_qh_ptr =
++			    hcd->non_periodic_qh_ptr->next;
++		}
++
++	} while (hcd->non_periodic_qh_ptr != orig_qh_ptr);
++
++	if (!hcd->core_if->dma_enable) {
++		gintmsk_data_t intr_mask = {.d32 = 0 };
++		intr_mask.b.nptxfempty = 1;
++
++#ifdef DEBUG
++		tx_status.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++		DWC_DEBUGPL(DBG_HCDV,
++			    "  NP Tx Req Queue Space Avail (after queue): %d\n",
++			    tx_status.b.nptxqspcavail);
++		DWC_DEBUGPL(DBG_HCDV,
++			    "  NP Tx FIFO Space Avail (after queue): %d\n",
++			    tx_status.b.nptxfspcavail);
++#endif
++		if (more_to_do || no_queue_space || no_fifo_space) {
++			/*
++			 * May need to queue more transactions as the request
++			 * queue or Tx FIFO empties. Enable the non-periodic
++			 * Tx FIFO empty interrupt. (Always use the half-empty
++			 * level to ensure that new requests are loaded as
++			 * soon as possible.)
++			 */
++			DWC_MODIFY_REG32(&global_regs->gintmsk, 0,
++					 intr_mask.d32);
++		} else {
++			/*
++			 * Disable the Tx FIFO empty interrupt since there are
++			 * no more transactions that need to be queued right
++			 * now. This function is called from interrupt
++			 * handlers to queue more transactions as transfer
++			 * states change.
++			 */
++			DWC_MODIFY_REG32(&global_regs->gintmsk, intr_mask.d32,
++					 0);
++		}
++	}
++}
++
++/**
++ * This function processes the currently active host channels and queues
++ * transactions for these channels to the DWC_otg controller. It is called
++ * from HCD interrupt handler functions.
++ *
++ * @param hcd The HCD state structure.
++ * @param tr_type The type(s) of transactions to queue (non-periodic,
++ * periodic, or both).
++ */
++void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t * hcd,
++				    dwc_otg_transaction_type_e tr_type)
++{
++#ifdef DEBUG_SOF
++	DWC_DEBUGPL(DBG_HCD, "Queue Transactions\n");
++#endif
++	/* Process host channels associated with periodic transfers. */
++	if ((tr_type == DWC_OTG_TRANSACTION_PERIODIC ||
++	     tr_type == DWC_OTG_TRANSACTION_ALL) &&
++	    !DWC_LIST_EMPTY(&hcd->periodic_sched_assigned)) {
++
++		process_periodic_channels(hcd);
++	}
++
++	/* Process host channels associated with non-periodic transfers. */
++	if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC ||
++	    tr_type == DWC_OTG_TRANSACTION_ALL) {
++		if (!DWC_LIST_EMPTY(&hcd->non_periodic_sched_active)) {
++			process_non_periodic_channels(hcd);
++		} else {
++			/*
++			 * Ensure NP Tx FIFO empty interrupt is disabled when
++			 * there are no non-periodic transfers to process.
++			 */
++			gintmsk_data_t gintmsk = {.d32 = 0 };
++			gintmsk.b.nptxfempty = 1;
++
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
++			}
++		}
++	}
++}
++
++#ifdef DWC_HS_ELECT_TST
++/*
++ * Quick and dirty hack to implement the HS Electrical Test
++ * SINGLE_STEP_GET_DEVICE_DESCRIPTOR feature.
++ *
++ * This code was copied from our userspace app "hset". It sends a
++ * Get Device Descriptor control sequence in two parts, first the
++ * Setup packet by itself, followed some time later by the In and
++ * Ack packets. Rather than trying to figure out how to add this
++ * functionality to the normal driver code, we just hijack the
++ * hardware, using these two function to drive the hardware
++ * directly.
++ */
++
++static dwc_otg_core_global_regs_t *global_regs;
++static dwc_otg_host_global_regs_t *hc_global_regs;
++static dwc_otg_hc_regs_t *hc_regs;
++static uint32_t *data_fifo;
++
++static void do_setup(void)
++{
++	gintsts_data_t gintsts;
++	hctsiz_data_t hctsiz;
++	hcchar_data_t hcchar;
++	haint_data_t haint;
++	hcint_data_t hcint;
++
++	/* Enable HAINTs */
++	DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0001);
++
++	/* Enable HCINTs */
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x04a3);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/*
++	 * Send Setup packet (Get Device Descriptor)
++	 */
++
++	/* Make sure channel is disabled */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	if (hcchar.b.chen) {
++		hcchar.b.chdis = 1;
++//              hcchar.b.chen = 1;
++		DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++		//sleep(1);
++		dwc_mdelay(1000);
++
++		/* Read GINTSTS */
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++		/* Read HAINT */
++		haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++		/* Read HCINT */
++		hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++		/* Read HCCHAR */
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++		/* Clear HCINT */
++		DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++		/* Clear HAINT */
++		DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++		/* Clear GINTSTS */
++		DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	}
++
++	/* Set HCTSIZ */
++	hctsiz.d32 = 0;
++	hctsiz.b.xfersize = 8;
++	hctsiz.b.pktcnt = 1;
++	hctsiz.b.pid = DWC_OTG_HC_PID_SETUP;
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	/* Set HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
++	hcchar.b.epdir = 0;
++	hcchar.b.epnum = 0;
++	hcchar.b.mps = 8;
++	hcchar.b.chen = 1;
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	/* Fill FIFO with Setup data for Get Device Descriptor */
++	data_fifo = (uint32_t *) ((char *)global_regs + 0x1000);
++	DWC_WRITE_REG32(data_fifo++, 0x01000680);
++	DWC_WRITE_REG32(data_fifo++, 0x00080000);
++
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Wait for host channel interrupt */
++	do {
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++	} while (gintsts.b.hcintr == 0);
++
++	/* Disable HCINTs */
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x0000);
++
++	/* Disable HAINTs */
++	DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0000);
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++}
++
++static void do_in_ack(void)
++{
++	gintsts_data_t gintsts;
++	hctsiz_data_t hctsiz;
++	hcchar_data_t hcchar;
++	haint_data_t haint;
++	hcint_data_t hcint;
++	host_grxsts_data_t grxsts;
++
++	/* Enable HAINTs */
++	DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0001);
++
++	/* Enable HCINTs */
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x04a3);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/*
++	 * Receive Control In packet
++	 */
++
++	/* Make sure channel is disabled */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	if (hcchar.b.chen) {
++		hcchar.b.chdis = 1;
++		hcchar.b.chen = 1;
++		DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++		//sleep(1);
++		dwc_mdelay(1000);
++
++		/* Read GINTSTS */
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++		/* Read HAINT */
++		haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++		/* Read HCINT */
++		hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++		/* Read HCCHAR */
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++		/* Clear HCINT */
++		DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++		/* Clear HAINT */
++		DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++		/* Clear GINTSTS */
++		DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	}
++
++	/* Set HCTSIZ */
++	hctsiz.d32 = 0;
++	hctsiz.b.xfersize = 8;
++	hctsiz.b.pktcnt = 1;
++	hctsiz.b.pid = DWC_OTG_HC_PID_DATA1;
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	/* Set HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
++	hcchar.b.epdir = 1;
++	hcchar.b.epnum = 0;
++	hcchar.b.mps = 8;
++	hcchar.b.chen = 1;
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Wait for receive status queue interrupt */
++	do {
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++	} while (gintsts.b.rxstsqlvl == 0);
++
++	/* Read RXSTS */
++	grxsts.d32 = DWC_READ_REG32(&global_regs->grxstsp);
++
++	/* Clear RXSTSQLVL in GINTSTS */
++	gintsts.d32 = 0;
++	gintsts.b.rxstsqlvl = 1;
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	switch (grxsts.b.pktsts) {
++	case DWC_GRXSTS_PKTSTS_IN:
++		/* Read the data into the host buffer */
++		if (grxsts.b.bcnt > 0) {
++			int i;
++			int word_count = (grxsts.b.bcnt + 3) / 4;
++
++			data_fifo = (uint32_t *) ((char *)global_regs + 0x1000);
++
++			for (i = 0; i < word_count; i++) {
++				(void)DWC_READ_REG32(data_fifo++);
++			}
++		}
++		break;
++
++	default:
++		break;
++	}
++
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Wait for receive status queue interrupt */
++	do {
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++	} while (gintsts.b.rxstsqlvl == 0);
++
++	/* Read RXSTS */
++	grxsts.d32 = DWC_READ_REG32(&global_regs->grxstsp);
++
++	/* Clear RXSTSQLVL in GINTSTS */
++	gintsts.d32 = 0;
++	gintsts.b.rxstsqlvl = 1;
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	switch (grxsts.b.pktsts) {
++	case DWC_GRXSTS_PKTSTS_IN_XFER_COMP:
++		break;
++
++	default:
++		break;
++	}
++
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Wait for host channel interrupt */
++	do {
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++	} while (gintsts.b.hcintr == 0);
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++//      usleep(100000);
++//      mdelay(100);
++	dwc_mdelay(1);
++
++	/*
++	 * Send handshake packet
++	 */
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Make sure channel is disabled */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	if (hcchar.b.chen) {
++		hcchar.b.chdis = 1;
++		hcchar.b.chen = 1;
++		DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++		//sleep(1);
++		dwc_mdelay(1000);
++
++		/* Read GINTSTS */
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++		/* Read HAINT */
++		haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++		/* Read HCINT */
++		hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++		/* Read HCCHAR */
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++		/* Clear HCINT */
++		DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++		/* Clear HAINT */
++		DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++		/* Clear GINTSTS */
++		DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	}
++
++	/* Set HCTSIZ */
++	hctsiz.d32 = 0;
++	hctsiz.b.xfersize = 0;
++	hctsiz.b.pktcnt = 1;
++	hctsiz.b.pid = DWC_OTG_HC_PID_DATA1;
++	DWC_WRITE_REG32(&hc_regs->hctsiz, hctsiz.d32);
++
++	/* Set HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
++	hcchar.b.epdir = 0;
++	hcchar.b.epnum = 0;
++	hcchar.b.mps = 8;
++	hcchar.b.chen = 1;
++	DWC_WRITE_REG32(&hc_regs->hcchar, hcchar.d32);
++
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++
++	/* Wait for host channel interrupt */
++	do {
++		gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++	} while (gintsts.b.hcintr == 0);
++
++	/* Disable HCINTs */
++	DWC_WRITE_REG32(&hc_regs->hcintmsk, 0x0000);
++
++	/* Disable HAINTs */
++	DWC_WRITE_REG32(&hc_global_regs->haintmsk, 0x0000);
++
++	/* Read HAINT */
++	haint.d32 = DWC_READ_REG32(&hc_global_regs->haint);
++
++	/* Read HCINT */
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++
++	/* Read HCCHAR */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++
++	/* Clear HCINT */
++	DWC_WRITE_REG32(&hc_regs->hcint, hcint.d32);
++
++	/* Clear HAINT */
++	DWC_WRITE_REG32(&hc_global_regs->haint, haint.d32);
++
++	/* Clear GINTSTS */
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	/* Read GINTSTS */
++	gintsts.d32 = DWC_READ_REG32(&global_regs->gintsts);
++}
++#endif
++
++/** Handles hub class-specific requests. */
++int dwc_otg_hcd_hub_control(dwc_otg_hcd_t * dwc_otg_hcd,
++			    uint16_t typeReq,
++			    uint16_t wValue,
++			    uint16_t wIndex, uint8_t * buf, uint16_t wLength)
++{
++	int retval = 0;
++
++	dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
++	usb_hub_descriptor_t *hub_desc;
++	hprt0_data_t hprt0 = {.d32 = 0 };
++
++	uint32_t port_status;
++
++	switch (typeReq) {
++	case UCR_CLEAR_HUB_FEATURE:
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++			    "ClearHubFeature 0x%x\n", wValue);
++		switch (wValue) {
++		case UHF_C_HUB_LOCAL_POWER:
++		case UHF_C_HUB_OVER_CURRENT:
++			/* Nothing required here */
++			break;
++		default:
++			retval = -DWC_E_INVALID;
++			DWC_ERROR("DWC OTG HCD - "
++				  "ClearHubFeature request %xh unknown\n",
++				  wValue);
++		}
++		break;
++	case UCR_CLEAR_PORT_FEATURE:
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		if (wValue != UHF_PORT_L1)
++#endif
++			if (!wIndex || wIndex > 1)
++				goto error;
++
++		switch (wValue) {
++		case UHF_PORT_ENABLE:
++			DWC_DEBUGPL(DBG_ANY, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_ENABLE\n");
++			hprt0.d32 = dwc_otg_read_hprt0(core_if);
++			hprt0.b.prtena = 1;
++			DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++			break;
++		case UHF_PORT_SUSPEND:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_SUSPEND\n");
++
++			if (core_if->power_down == 2) {
++				dwc_otg_host_hibernation_restore(core_if, 0, 0);
++			} else {
++				DWC_WRITE_REG32(core_if->pcgcctl, 0);
++				dwc_mdelay(5);
++
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++				hprt0.b.prtres = 1;
++				DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++				hprt0.b.prtsusp = 0;
++				/* Clear Resume bit */
++				dwc_mdelay(100);
++				hprt0.b.prtres = 0;
++				DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++			}
++			break;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		case UHF_PORT_L1:
++			{
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				glpmcfg_data_t lpmcfg = {.d32 = 0 };
++
++				lpmcfg.d32 =
++				    DWC_READ_REG32(&core_if->
++						   core_global_regs->glpmcfg);
++				lpmcfg.b.en_utmi_sleep = 0;
++				lpmcfg.b.hird_thres &= (~(1 << 4));
++				lpmcfg.b.prt_sleep_sts = 1;
++				DWC_WRITE_REG32(&core_if->
++						core_global_regs->glpmcfg,
++						lpmcfg.d32);
++
++				/* Clear Enbl_L1Gating bit. */
++				pcgcctl.b.enbl_sleep_gating = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32,
++						 0);
++
++				dwc_mdelay(5);
++
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++				hprt0.b.prtres = 1;
++				DWC_WRITE_REG32(core_if->host_if->hprt0,
++						hprt0.d32);
++				/* This bit will be cleared in wakeup interrupt handle */
++				break;
++			}
++#endif
++		case UHF_PORT_POWER:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_POWER\n");
++			hprt0.d32 = dwc_otg_read_hprt0(core_if);
++			hprt0.b.prtpwr = 0;
++			DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++			break;
++		case UHF_PORT_INDICATOR:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_INDICATOR\n");
++			/* Port inidicator not supported */
++			break;
++		case UHF_C_PORT_CONNECTION:
++			/* Clears drivers internal connect status change
++			 * flag */
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_C_CONNECTION\n");
++			dwc_otg_hcd->flags.b.port_connect_status_change = 0;
++			break;
++		case UHF_C_PORT_RESET:
++			/* Clears the driver's internal Port Reset Change
++			 * flag */
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_C_RESET\n");
++			dwc_otg_hcd->flags.b.port_reset_change = 0;
++			break;
++		case UHF_C_PORT_ENABLE:
++			/* Clears the driver's internal Port
++			 * Enable/Disable Change flag */
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_C_ENABLE\n");
++			dwc_otg_hcd->flags.b.port_enable_change = 0;
++			break;
++		case UHF_C_PORT_SUSPEND:
++			/* Clears the driver's internal Port Suspend
++			 * Change flag, which is set when resume signaling on
++			 * the host port is complete */
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_C_SUSPEND\n");
++			dwc_otg_hcd->flags.b.port_suspend_change = 0;
++			break;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		case UHF_C_PORT_L1:
++			dwc_otg_hcd->flags.b.port_l1_change = 0;
++			break;
++#endif
++		case UHF_C_PORT_OVER_CURRENT:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "ClearPortFeature USB_PORT_FEAT_C_OVER_CURRENT\n");
++			dwc_otg_hcd->flags.b.port_over_current_change = 0;
++			break;
++		default:
++			retval = -DWC_E_INVALID;
++			DWC_ERROR("DWC OTG HCD - "
++				  "ClearPortFeature request %xh "
++				  "unknown or unsupported\n", wValue);
++		}
++		break;
++	case UCR_GET_HUB_DESCRIPTOR:
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++			    "GetHubDescriptor\n");
++		hub_desc = (usb_hub_descriptor_t *) buf;
++		hub_desc->bDescLength = 9;
++		hub_desc->bDescriptorType = 0x29;
++		hub_desc->bNbrPorts = 1;
++		USETW(hub_desc->wHubCharacteristics, 0x08);
++		hub_desc->bPwrOn2PwrGood = 1;
++		hub_desc->bHubContrCurrent = 0;
++		hub_desc->DeviceRemovable[0] = 0;
++		hub_desc->DeviceRemovable[1] = 0xff;
++		break;
++	case UCR_GET_HUB_STATUS:
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++			    "GetHubStatus\n");
++		DWC_MEMSET(buf, 0, 4);
++		break;
++	case UCR_GET_PORT_STATUS:
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++			    "GetPortStatus wIndex = 0x%04x FLAGS=0x%08x\n",
++			    wIndex, dwc_otg_hcd->flags.d32);
++		if (!wIndex || wIndex > 1)
++			goto error;
++
++		port_status = 0;
++
++		if (dwc_otg_hcd->flags.b.port_connect_status_change)
++			port_status |= (1 << UHF_C_PORT_CONNECTION);
++
++		if (dwc_otg_hcd->flags.b.port_enable_change)
++			port_status |= (1 << UHF_C_PORT_ENABLE);
++
++		if (dwc_otg_hcd->flags.b.port_suspend_change)
++			port_status |= (1 << UHF_C_PORT_SUSPEND);
++
++		if (dwc_otg_hcd->flags.b.port_l1_change)
++			port_status |= (1 << UHF_C_PORT_L1);
++
++		if (dwc_otg_hcd->flags.b.port_reset_change) {
++			port_status |= (1 << UHF_C_PORT_RESET);
++		}
++
++		if (dwc_otg_hcd->flags.b.port_over_current_change) {
++			DWC_WARN("Overcurrent change detected\n");
++			port_status |= (1 << UHF_C_PORT_OVER_CURRENT);
++		}
++
++		if (!dwc_otg_hcd->flags.b.port_connect_status) {
++			/*
++			 * The port is disconnected, which means the core is
++			 * either in device mode or it soon will be. Just
++			 * return 0's for the remainder of the port status
++			 * since the port register can't be read if the core
++			 * is in device mode.
++			 */
++			*((__le32 *) buf) = dwc_cpu_to_le32(&port_status);
++			break;
++		}
++
++		hprt0.d32 = DWC_READ_REG32(core_if->host_if->hprt0);
++		DWC_DEBUGPL(DBG_HCDV, "  HPRT0: 0x%08x\n", hprt0.d32);
++
++		if (hprt0.b.prtconnsts)
++			port_status |= (1 << UHF_PORT_CONNECTION);
++
++		if (hprt0.b.prtena)
++			port_status |= (1 << UHF_PORT_ENABLE);
++
++		if (hprt0.b.prtsusp)
++			port_status |= (1 << UHF_PORT_SUSPEND);
++
++		if (hprt0.b.prtovrcurract)
++			port_status |= (1 << UHF_PORT_OVER_CURRENT);
++
++		if (hprt0.b.prtrst)
++			port_status |= (1 << UHF_PORT_RESET);
++
++		if (hprt0.b.prtpwr)
++			port_status |= (1 << UHF_PORT_POWER);
++
++		if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED)
++			port_status |= (1 << UHF_PORT_HIGH_SPEED);
++		else if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED)
++			port_status |= (1 << UHF_PORT_LOW_SPEED);
++
++		if (hprt0.b.prttstctl)
++			port_status |= (1 << UHF_PORT_TEST);
++		if (dwc_otg_get_lpm_portsleepstatus(dwc_otg_hcd->core_if)) {
++			port_status |= (1 << UHF_PORT_L1);
++		}
++		/*
++		   For Synopsys HW emulation of Power down wkup_control asserts the
++		   hreset_n and prst_n on suspned. This causes the HPRT0 to be zero.
++		   We intentionally tell the software that port is in L2Suspend state.
++		   Only for STE.
++		*/
++		if ((core_if->power_down == 2)
++		    && (core_if->hibernation_suspend == 1)) {
++			port_status |= (1 << UHF_PORT_SUSPEND);
++		}
++		/* USB_PORT_FEAT_INDICATOR unsupported always 0 */
++
++		*((__le32 *) buf) = dwc_cpu_to_le32(&port_status);
++
++		break;
++	case UCR_SET_HUB_FEATURE:
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++			    "SetHubFeature\n");
++		/* No HUB features supported */
++		break;
++	case UCR_SET_PORT_FEATURE:
++		if (wValue != UHF_PORT_TEST && (!wIndex || wIndex > 1))
++			goto error;
++
++		if (!dwc_otg_hcd->flags.b.port_connect_status) {
++			/*
++			 * The port is disconnected, which means the core is
++			 * either in device mode or it soon will be. Just
++			 * return without doing anything since the port
++			 * register can't be written if the core is in device
++			 * mode.
++			 */
++			break;
++		}
++
++		switch (wValue) {
++		case UHF_PORT_SUSPEND:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
++			if (dwc_otg_hcd_otg_port(dwc_otg_hcd) != wIndex) {
++				goto error;
++			}
++			if (core_if->power_down == 2) {
++				int timeout = 300;
++				dwc_irqflags_t flags;
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				gpwrdn_data_t gpwrdn = {.d32 = 0 };
++				gusbcfg_data_t gusbcfg = {.d32 = 0 };
++#ifdef DWC_DEV_SRPCAP
++				int32_t otg_cap_param = core_if->core_params->otg_cap;
++#endif
++				DWC_PRINTF("Preparing for complete power-off\n");
++
++				/* Save registers before hibernation */
++				dwc_otg_save_global_regs(core_if);
++				dwc_otg_save_host_regs(core_if);
++
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++				hprt0.b.prtsusp = 1;
++				hprt0.b.prtena = 0;
++				DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++				/* Spin hprt0.b.prtsusp to became 1 */
++				do {
++					hprt0.d32 = dwc_otg_read_hprt0(core_if);
++					if (hprt0.b.prtsusp) {
++						break;
++					}
++					dwc_mdelay(1);
++				} while (--timeout);
++				if (!timeout) {
++					DWC_WARN("Suspend wasn't genereted\n");
++				}
++				dwc_udelay(10);
++
++				/*
++				 * We need to disable interrupts to prevent servicing of any IRQ
++				 * during going to hibernation
++				 */
++				DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags);
++				core_if->lx_state = DWC_OTG_L2;
++#ifdef DWC_DEV_SRPCAP
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++				hprt0.b.prtpwr = 0;
++				hprt0.b.prtena = 0;
++				DWC_WRITE_REG32(core_if->host_if->hprt0,
++						hprt0.d32);
++#endif
++				gusbcfg.d32 =
++				    DWC_READ_REG32(&core_if->core_global_regs->
++						   gusbcfg);
++				if (gusbcfg.b.ulpi_utmi_sel == 1) {
++					/* ULPI interface */
++					/* Suspend the Phy Clock */
++					pcgcctl.d32 = 0;
++					pcgcctl.b.stoppclk = 1;
++					DWC_MODIFY_REG32(core_if->pcgcctl, 0,
++							 pcgcctl.d32);
++					dwc_udelay(10);
++					gpwrdn.b.pmuactv = 1;
++					DWC_MODIFY_REG32(&core_if->
++							 core_global_regs->
++							 gpwrdn, 0, gpwrdn.d32);
++				} else {
++					/* UTMI+ Interface */
++					gpwrdn.b.pmuactv = 1;
++					DWC_MODIFY_REG32(&core_if->
++							 core_global_regs->
++							 gpwrdn, 0, gpwrdn.d32);
++					dwc_udelay(10);
++					pcgcctl.b.stoppclk = 1;
++					DWC_MODIFY_REG32(core_if->pcgcctl, 0, pcgcctl.d32);
++					dwc_udelay(10);
++				}
++#ifdef DWC_DEV_SRPCAP
++				gpwrdn.d32 = 0;
++				gpwrdn.b.dis_vbus = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++#endif
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuintsel = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				gpwrdn.d32 = 0;
++#ifdef DWC_DEV_SRPCAP
++				gpwrdn.b.srp_det_msk = 1;
++#endif
++				gpwrdn.b.disconn_det_msk = 1;
++				gpwrdn.b.lnstchng_msk = 1;
++				gpwrdn.b.sts_chngint_msk = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				/* Enable Power Down Clamp and all interrupts in GPWRDN */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pwrdnclmp = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++				dwc_udelay(10);
++
++				/* Switch off VDD */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++
++#ifdef DWC_DEV_SRPCAP
++				if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE)
++				{
++					core_if->pwron_timer_started = 1;
++					DWC_TIMER_SCHEDULE(core_if->pwron_timer, 6000 /* 6 secs */ );
++				}
++#endif
++				/* Save gpwrdn register for further usage if stschng interrupt */
++				core_if->gr_backup->gpwrdn_local =
++						DWC_READ_REG32(&core_if->core_global_regs->gpwrdn);
++
++				/* Set flag to indicate that we are in hibernation */
++				core_if->hibernation_suspend = 1;
++				DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock,flags);
++
++				DWC_PRINTF("Host hibernation completed\n");
++				// Exit from case statement
++				break;
++
++			}
++			if (dwc_otg_hcd_otg_port(dwc_otg_hcd) == wIndex &&
++			    dwc_otg_hcd->fops->get_b_hnp_enable(dwc_otg_hcd)) {
++				gotgctl_data_t gotgctl = {.d32 = 0 };
++				gotgctl.b.hstsethnpen = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gotgctl, 0, gotgctl.d32);
++				core_if->op_state = A_SUSPEND;
++			}
++			hprt0.d32 = dwc_otg_read_hprt0(core_if);
++			hprt0.b.prtsusp = 1;
++			DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++			{
++				dwc_irqflags_t flags;
++				/* Update lx_state */
++				DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags);
++				core_if->lx_state = DWC_OTG_L2;
++				DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags);
++			}
++			/* Suspend the Phy Clock */
++			{
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				pcgcctl.b.stoppclk = 1;
++				DWC_MODIFY_REG32(core_if->pcgcctl, 0,
++						 pcgcctl.d32);
++				dwc_udelay(10);
++			}
++
++			/* For HNP the bus must be suspended for at least 200ms. */
++			if (dwc_otg_hcd->fops->get_b_hnp_enable(dwc_otg_hcd)) {
++				pcgcctl_data_t pcgcctl = {.d32 = 0 };
++				pcgcctl.b.stoppclk = 1;
++                DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++				dwc_mdelay(200);
++			}
++
++			/** @todo - check how sw can wait for 1 sec to check asesvld??? */
++#if 0 //vahrama !!!!!!!!!!!!!!!!!!
++			if (core_if->adp_enable) {
++				gotgctl_data_t gotgctl = {.d32 = 0 };
++				gpwrdn_data_t gpwrdn;
++
++				while (gotgctl.b.asesvld == 1) {
++					gotgctl.d32 =
++					    DWC_READ_REG32(&core_if->
++							   core_global_regs->
++							   gotgctl);
++					dwc_mdelay(100);
++				}
++
++				/* Enable Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++
++				/* Unmask SRP detected interrupt from Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.srp_det_msk = 1;
++				DWC_MODIFY_REG32(&core_if->core_global_regs->
++						 gpwrdn, 0, gpwrdn.d32);
++
++				dwc_otg_adp_probe_start(core_if);
++			}
++#endif
++			break;
++		case UHF_PORT_POWER:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "SetPortFeature - USB_PORT_FEAT_POWER\n");
++			hprt0.d32 = dwc_otg_read_hprt0(core_if);
++			hprt0.b.prtpwr = 1;
++			DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++			break;
++		case UHF_PORT_RESET:
++			if ((core_if->power_down == 2)
++			    && (core_if->hibernation_suspend == 1)) {
++				/* If we are going to exit from Hibernated
++				 * state via USB RESET.
++				 */
++				dwc_otg_host_hibernation_restore(core_if, 0, 1);
++			} else {
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++
++				DWC_DEBUGPL(DBG_HCD,
++					    "DWC OTG HCD HUB CONTROL - "
++					    "SetPortFeature - USB_PORT_FEAT_RESET\n");
++				{
++					pcgcctl_data_t pcgcctl = {.d32 = 0 };
++					pcgcctl.b.enbl_sleep_gating = 1;
++					pcgcctl.b.stoppclk = 1;
++					DWC_MODIFY_REG32(core_if->pcgcctl, pcgcctl.d32, 0);
++					DWC_WRITE_REG32(core_if->pcgcctl, 0);
++				}
++#ifdef CONFIG_USB_DWC_OTG_LPM
++				{
++					glpmcfg_data_t lpmcfg;
++					lpmcfg.d32 =
++						DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++					if (lpmcfg.b.prt_sleep_sts) {
++						lpmcfg.b.en_utmi_sleep = 0;
++						lpmcfg.b.hird_thres &= (~(1 << 4));
++						DWC_WRITE_REG32
++						    (&core_if->core_global_regs->glpmcfg,
++						     lpmcfg.d32);
++						dwc_mdelay(1);
++					}
++				}
++#endif
++				hprt0.d32 = dwc_otg_read_hprt0(core_if);
++				/* Clear suspend bit if resetting from suspended state. */
++				hprt0.b.prtsusp = 0;
++				/* When B-Host the Port reset bit is set in
++				 * the Start HCD Callback function, so that
++				 * the reset is started within 1ms of the HNP
++				 * success interrupt. */
++				if (!dwc_otg_hcd_is_b_host(dwc_otg_hcd)) {
++					hprt0.b.prtpwr = 1;
++					hprt0.b.prtrst = 1;
++					DWC_PRINTF("Indeed it is in host mode hprt0 = %08x\n",hprt0.d32);
++					DWC_WRITE_REG32(core_if->host_if->hprt0,
++							hprt0.d32);
++				}
++				/* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */
++				dwc_mdelay(60);
++				hprt0.b.prtrst = 0;
++				DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++				core_if->lx_state = DWC_OTG_L0;	/* Now back to the on state */
++			}
++			break;
++#ifdef DWC_HS_ELECT_TST
++		case UHF_PORT_TEST:
++			{
++				uint32_t t;
++				gintmsk_data_t gintmsk;
++
++				t = (wIndex >> 8);	/* MSB wIndex USB */
++				DWC_DEBUGPL(DBG_HCD,
++					    "DWC OTG HCD HUB CONTROL - "
++					    "SetPortFeature - USB_PORT_FEAT_TEST %d\n",
++					    t);
++				DWC_WARN("USB_PORT_FEAT_TEST %d\n", t);
++				if (t < 6) {
++					hprt0.d32 = dwc_otg_read_hprt0(core_if);
++					hprt0.b.prttstctl = t;
++					DWC_WRITE_REG32(core_if->host_if->hprt0,
++							hprt0.d32);
++				} else {
++					/* Setup global vars with reg addresses (quick and
++					 * dirty hack, should be cleaned up)
++					 */
++					global_regs = core_if->core_global_regs;
++					hc_global_regs =
++					    core_if->host_if->host_global_regs;
++					hc_regs =
++					    (dwc_otg_hc_regs_t *) ((char *)
++								   global_regs +
++								   0x500);
++					data_fifo =
++					    (uint32_t *) ((char *)global_regs +
++							  0x1000);
++
++					if (t == 6) {	/* HS_HOST_PORT_SUSPEND_RESUME */
++						/* Save current interrupt mask */
++						gintmsk.d32 =
++						    DWC_READ_REG32
++						    (&global_regs->gintmsk);
++
++						/* Disable all interrupts while we muck with
++						 * the hardware directly
++						 */
++						DWC_WRITE_REG32(&global_regs->gintmsk, 0);
++
++						/* 15 second delay per the test spec */
++						dwc_mdelay(15000);
++
++						/* Drive suspend on the root port */
++						hprt0.d32 =
++						    dwc_otg_read_hprt0(core_if);
++						hprt0.b.prtsusp = 1;
++						hprt0.b.prtres = 0;
++						DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++						/* 15 second delay per the test spec */
++						dwc_mdelay(15000);
++
++						/* Drive resume on the root port */
++						hprt0.d32 =
++						    dwc_otg_read_hprt0(core_if);
++						hprt0.b.prtsusp = 0;
++						hprt0.b.prtres = 1;
++						DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++						dwc_mdelay(100);
++
++						/* Clear the resume bit */
++						hprt0.b.prtres = 0;
++						DWC_WRITE_REG32(core_if->host_if->hprt0, hprt0.d32);
++
++						/* Restore interrupts */
++						DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32);
++					} else if (t == 7) {	/* SINGLE_STEP_GET_DEVICE_DESCRIPTOR setup */
++						/* Save current interrupt mask */
++						gintmsk.d32 =
++						    DWC_READ_REG32
++						    (&global_regs->gintmsk);
++
++						/* Disable all interrupts while we muck with
++						 * the hardware directly
++						 */
++						DWC_WRITE_REG32(&global_regs->gintmsk, 0);
++
++						/* 15 second delay per the test spec */
++						dwc_mdelay(15000);
++
++						/* Send the Setup packet */
++						do_setup();
++
++						/* 15 second delay so nothing else happens for awhile */
++						dwc_mdelay(15000);
++
++						/* Restore interrupts */
++						DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32);
++					} else if (t == 8) {	/* SINGLE_STEP_GET_DEVICE_DESCRIPTOR execute */
++						/* Save current interrupt mask */
++						gintmsk.d32 =
++						    DWC_READ_REG32
++						    (&global_regs->gintmsk);
++
++						/* Disable all interrupts while we muck with
++						 * the hardware directly
++						 */
++						DWC_WRITE_REG32(&global_regs->gintmsk, 0);
++
++						/* Send the Setup packet */
++						do_setup();
++
++						/* 15 second delay so nothing else happens for awhile */
++						dwc_mdelay(15000);
++
++						/* Send the In and Ack packets */
++						do_in_ack();
++
++						/* 15 second delay so nothing else happens for awhile */
++						dwc_mdelay(15000);
++
++						/* Restore interrupts */
++						DWC_WRITE_REG32(&global_regs->gintmsk, gintmsk.d32);
++					}
++				}
++				break;
++			}
++#endif /* DWC_HS_ELECT_TST */
++
++		case UHF_PORT_INDICATOR:
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB CONTROL - "
++				    "SetPortFeature - USB_PORT_FEAT_INDICATOR\n");
++			/* Not supported */
++			break;
++		default:
++			retval = -DWC_E_INVALID;
++			DWC_ERROR("DWC OTG HCD - "
++				  "SetPortFeature request %xh "
++				  "unknown or unsupported\n", wValue);
++			break;
++		}
++		break;
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	case UCR_SET_AND_TEST_PORT_FEATURE:
++		if (wValue != UHF_PORT_L1) {
++			goto error;
++		}
++		{
++			int portnum, hird, devaddr, remwake;
++			glpmcfg_data_t lpmcfg;
++			uint32_t time_usecs;
++			gintsts_data_t gintsts;
++			gintmsk_data_t gintmsk;
++
++			if (!dwc_otg_get_param_lpm_enable(core_if)) {
++				goto error;
++			}
++			if (wValue != UHF_PORT_L1 || wLength != 1) {
++				goto error;
++			}
++			/* Check if the port currently is in SLEEP state */
++			lpmcfg.d32 =
++			    DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++			if (lpmcfg.b.prt_sleep_sts) {
++				DWC_INFO("Port is already in sleep mode\n");
++				buf[0] = 0;	/* Return success */
++				break;
++			}
++
++			portnum = wIndex & 0xf;
++			hird = (wIndex >> 4) & 0xf;
++			devaddr = (wIndex >> 8) & 0x7f;
++			remwake = (wIndex >> 15);
++
++			if (portnum != 1) {
++				retval = -DWC_E_INVALID;
++				DWC_WARN
++				    ("Wrong port number(%d) in SetandTestPortFeature request\n",
++				     portnum);
++				break;
++			}
++
++			DWC_PRINTF
++			    ("SetandTestPortFeature request: portnum = %d, hird = %d, devaddr = %d, rewake = %d\n",
++			     portnum, hird, devaddr, remwake);
++			/* Disable LPM interrupt */
++			gintmsk.d32 = 0;
++			gintmsk.b.lpmtranrcvd = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk,
++					 gintmsk.d32, 0);
++
++			if (dwc_otg_hcd_send_lpm
++			    (dwc_otg_hcd, devaddr, hird, remwake)) {
++				retval = -DWC_E_INVALID;
++				break;
++			}
++
++			time_usecs = 10 * (lpmcfg.b.retry_count + 1);
++			/* We will consider timeout if time_usecs microseconds pass,
++			 * and we don't receive LPM transaction status.
++			 * After receiving non-error responce(ACK/NYET/STALL) from device,
++			 *  core will set lpmtranrcvd bit.
++			 */
++			do {
++				gintsts.d32 =
++				    DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++				if (gintsts.b.lpmtranrcvd) {
++					break;
++				}
++				dwc_udelay(1);
++			} while (--time_usecs);
++			/* lpm_int bit will be cleared in LPM interrupt handler */
++
++			/* Now fill status
++			 * 0x00 - Success
++			 * 0x10 - NYET
++			 * 0x11 - Timeout
++			 */
++			if (!gintsts.b.lpmtranrcvd) {
++				buf[0] = 0x3;	/* Completion code is Timeout */
++				dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd);
++			} else {
++				lpmcfg.d32 =
++				    DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++				if (lpmcfg.b.lpm_resp == 0x3) {
++					/* ACK responce from the device */
++					buf[0] = 0x00;	/* Success */
++				} else if (lpmcfg.b.lpm_resp == 0x2) {
++					/* NYET responce from the device */
++					buf[0] = 0x2;
++				} else {
++					/* Otherwise responce with Timeout */
++					buf[0] = 0x3;
++				}
++			}
++			DWC_PRINTF("Device responce to LPM trans is %x\n",
++				   lpmcfg.b.lpm_resp);
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0,
++					 gintmsk.d32);
++
++			break;
++		}
++#endif /* CONFIG_USB_DWC_OTG_LPM */
++	default:
++error:
++		retval = -DWC_E_INVALID;
++		DWC_WARN("DWC OTG HCD - "
++			 "Unknown hub control request type or invalid typeReq: %xh wIndex: %xh wValue: %xh\n",
++			 typeReq, wIndex, wValue);
++		break;
++	}
++
++	return retval;
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++/** Returns index of host channel to perform LPM transaction. */
++int dwc_otg_hcd_get_hc_for_lpm_tran(dwc_otg_hcd_t * hcd, uint8_t devaddr)
++{
++	dwc_otg_core_if_t *core_if = hcd->core_if;
++	dwc_hc_t *hc;
++	hcchar_data_t hcchar;
++	gintmsk_data_t gintmsk = {.d32 = 0 };
++
++	if (DWC_CIRCLEQ_EMPTY(&hcd->free_hc_list)) {
++		DWC_PRINTF("No free channel to select for LPM transaction\n");
++		return -1;
++	}
++
++	hc = DWC_CIRCLEQ_FIRST(&hcd->free_hc_list);
++
++	/* Mask host channel interrupts. */
++	gintmsk.b.hcintr = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, gintmsk.d32, 0);
++
++	/* Fill fields that core needs for LPM transaction */
++	hcchar.b.devaddr = devaddr;
++	hcchar.b.epnum = 0;
++	hcchar.b.eptype = DWC_OTG_EP_TYPE_CONTROL;
++	hcchar.b.mps = 64;
++	hcchar.b.lspddev = (hc->speed == DWC_OTG_EP_SPEED_LOW);
++	hcchar.b.epdir = 0;	/* OUT */
++	DWC_WRITE_REG32(&core_if->host_if->hc_regs[hc->hc_num]->hcchar,
++			hcchar.d32);
++
++	/* Remove the host channel from the free list. */
++	DWC_CIRCLEQ_REMOVE_INIT(&hcd->free_hc_list, hc, hc_list_entry);
++
++	DWC_PRINTF("hcnum = %d devaddr = %d\n", hc->hc_num, devaddr);
++
++	return hc->hc_num;
++}
++
++/** Release hc after performing LPM transaction */
++void dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd_t * hcd)
++{
++	dwc_hc_t *hc;
++	glpmcfg_data_t lpmcfg;
++	uint8_t hc_num;
++
++	lpmcfg.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->glpmcfg);
++	hc_num = lpmcfg.b.lpm_chan_index;
++
++	hc = hcd->hc_ptr_array[hc_num];
++
++	DWC_PRINTF("Freeing channel %d after LPM\n", hc_num);
++	/* Return host channel to free list */
++	DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry);
++}
++
++int dwc_otg_hcd_send_lpm(dwc_otg_hcd_t * hcd, uint8_t devaddr, uint8_t hird,
++			 uint8_t bRemoteWake)
++{
++	glpmcfg_data_t lpmcfg;
++	pcgcctl_data_t pcgcctl = {.d32 = 0 };
++	int channel;
++
++	channel = dwc_otg_hcd_get_hc_for_lpm_tran(hcd, devaddr);
++	if (channel < 0) {
++		return channel;
++	}
++
++	pcgcctl.b.enbl_sleep_gating = 1;
++	DWC_MODIFY_REG32(hcd->core_if->pcgcctl, 0, pcgcctl.d32);
++
++	/* Read LPM config register */
++	lpmcfg.d32 = DWC_READ_REG32(&hcd->core_if->core_global_regs->glpmcfg);
++
++	/* Program LPM transaction fields */
++	lpmcfg.b.rem_wkup_en = bRemoteWake;
++	lpmcfg.b.hird = hird;
++	lpmcfg.b.hird_thres = 0x1c;
++	lpmcfg.b.lpm_chan_index = channel;
++	lpmcfg.b.en_utmi_sleep = 1;
++	/* Program LPM config register */
++	DWC_WRITE_REG32(&hcd->core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++
++	/* Send LPM transaction */
++	lpmcfg.b.send_lpm = 1;
++	DWC_WRITE_REG32(&hcd->core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++
++	return 0;
++}
++
++#endif /* CONFIG_USB_DWC_OTG_LPM */
++
++int dwc_otg_hcd_is_status_changed(dwc_otg_hcd_t * hcd, int port)
++{
++	int retval;
++
++	if (port != 1) {
++		return -DWC_E_INVALID;
++	}
++
++	retval = (hcd->flags.b.port_connect_status_change ||
++		  hcd->flags.b.port_reset_change ||
++		  hcd->flags.b.port_enable_change ||
++		  hcd->flags.b.port_suspend_change ||
++		  hcd->flags.b.port_over_current_change);
++#ifdef DEBUG
++	if (retval) {
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD HUB STATUS DATA:"
++			    " Root port status changed\n");
++		DWC_DEBUGPL(DBG_HCDV, "  port_connect_status_change: %d\n",
++			    hcd->flags.b.port_connect_status_change);
++		DWC_DEBUGPL(DBG_HCDV, "  port_reset_change: %d\n",
++			    hcd->flags.b.port_reset_change);
++		DWC_DEBUGPL(DBG_HCDV, "  port_enable_change: %d\n",
++			    hcd->flags.b.port_enable_change);
++		DWC_DEBUGPL(DBG_HCDV, "  port_suspend_change: %d\n",
++			    hcd->flags.b.port_suspend_change);
++		DWC_DEBUGPL(DBG_HCDV, "  port_over_current_change: %d\n",
++			    hcd->flags.b.port_over_current_change);
++	}
++#endif
++	return retval;
++}
++
++int dwc_otg_hcd_get_frame_number(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	hfnum_data_t hfnum;
++	hfnum.d32 =
++	    DWC_READ_REG32(&dwc_otg_hcd->core_if->host_if->host_global_regs->
++			   hfnum);
++
++#ifdef DEBUG_SOF
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD GET FRAME NUMBER %d\n",
++		    hfnum.b.frnum);
++#endif
++	return hfnum.b.frnum;
++}
++
++int dwc_otg_hcd_start(dwc_otg_hcd_t * hcd,
++		      struct dwc_otg_hcd_function_ops *fops)
++{
++	int retval = 0;
++
++	hcd->fops = fops;
++	if (!dwc_otg_is_device_mode(hcd->core_if) &&
++		(!hcd->core_if->adp_enable || hcd->core_if->adp.adp_started)) {
++		dwc_otg_hcd_reinit(hcd);
++	} else {
++		retval = -DWC_E_NO_DEVICE;
++	}
++
++	return retval;
++}
++
++void *dwc_otg_hcd_get_priv_data(dwc_otg_hcd_t * hcd)
++{
++	return hcd->priv;
++}
++
++void dwc_otg_hcd_set_priv_data(dwc_otg_hcd_t * hcd, void *priv_data)
++{
++	hcd->priv = priv_data;
++}
++
++uint32_t dwc_otg_hcd_otg_port(dwc_otg_hcd_t * hcd)
++{
++	return hcd->otg_port;
++}
++
++uint32_t dwc_otg_hcd_is_b_host(dwc_otg_hcd_t * hcd)
++{
++	uint32_t is_b_host;
++	if (hcd->core_if->op_state == B_HOST) {
++		is_b_host = 1;
++	} else {
++		is_b_host = 0;
++	}
++
++	return is_b_host;
++}
++
++dwc_otg_hcd_urb_t *dwc_otg_hcd_urb_alloc(dwc_otg_hcd_t * hcd,
++					 int iso_desc_count, int atomic_alloc)
++{
++	dwc_otg_hcd_urb_t *dwc_otg_urb;
++	uint32_t size;
++
++	size =
++	    sizeof(*dwc_otg_urb) +
++	    iso_desc_count * sizeof(struct dwc_otg_hcd_iso_packet_desc);
++	if (atomic_alloc)
++		dwc_otg_urb = DWC_ALLOC_ATOMIC(size);
++	else
++		dwc_otg_urb = DWC_ALLOC(size);
++
++        if (dwc_otg_urb)
++		dwc_otg_urb->packet_count = iso_desc_count;
++        else {
++		DWC_ERROR("**** DWC OTG HCD URB alloc - "
++			"%salloc of %db failed\n",
++			atomic_alloc?"atomic ":"", size);
++	}
++	return dwc_otg_urb;
++}
++
++void dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_hcd_urb_t * dwc_otg_urb,
++				  uint8_t dev_addr, uint8_t ep_num,
++				  uint8_t ep_type, uint8_t ep_dir, uint16_t mps)
++{
++	dwc_otg_hcd_fill_pipe(&dwc_otg_urb->pipe_info, dev_addr, ep_num,
++			      ep_type, ep_dir, mps);
++#if 0
++	DWC_PRINTF
++	    ("addr = %d, ep_num = %d, ep_dir = 0x%x, ep_type = 0x%x, mps = %d\n",
++	     dev_addr, ep_num, ep_dir, ep_type, mps);
++#endif
++}
++
++void dwc_otg_hcd_urb_set_params(dwc_otg_hcd_urb_t * dwc_otg_urb,
++				void *urb_handle, void *buf, dwc_dma_t dma,
++				uint32_t buflen, void *setup_packet,
++				dwc_dma_t setup_dma, uint32_t flags,
++				uint16_t interval)
++{
++	dwc_otg_urb->priv = urb_handle;
++	dwc_otg_urb->buf = buf;
++	dwc_otg_urb->dma = dma;
++	dwc_otg_urb->length = buflen;
++	dwc_otg_urb->setup_packet = setup_packet;
++	dwc_otg_urb->setup_dma = setup_dma;
++	dwc_otg_urb->flags = flags;
++	dwc_otg_urb->interval = interval;
++	dwc_otg_urb->status = -DWC_E_IN_PROGRESS;
++}
++
++uint32_t dwc_otg_hcd_urb_get_status(dwc_otg_hcd_urb_t * dwc_otg_urb)
++{
++	return dwc_otg_urb->status;
++}
++
++uint32_t dwc_otg_hcd_urb_get_actual_length(dwc_otg_hcd_urb_t * dwc_otg_urb)
++{
++	return dwc_otg_urb->actual_length;
++}
++
++uint32_t dwc_otg_hcd_urb_get_error_count(dwc_otg_hcd_urb_t * dwc_otg_urb)
++{
++	return dwc_otg_urb->error_count;
++}
++
++void dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_hcd_urb_t * dwc_otg_urb,
++					 int desc_num, uint32_t offset,
++					 uint32_t length)
++{
++	dwc_otg_urb->iso_descs[desc_num].offset = offset;
++	dwc_otg_urb->iso_descs[desc_num].length = length;
++}
++
++uint32_t dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_hcd_urb_t * dwc_otg_urb,
++					     int desc_num)
++{
++	return dwc_otg_urb->iso_descs[desc_num].status;
++}
++
++uint32_t dwc_otg_hcd_urb_get_iso_desc_actual_length(dwc_otg_hcd_urb_t *
++						    dwc_otg_urb, int desc_num)
++{
++	return dwc_otg_urb->iso_descs[desc_num].actual_length;
++}
++
++int dwc_otg_hcd_is_bandwidth_allocated(dwc_otg_hcd_t * hcd, void *ep_handle)
++{
++	int allocated = 0;
++	dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle;
++
++	if (qh) {
++		if (!DWC_LIST_EMPTY(&qh->qh_list_entry)) {
++			allocated = 1;
++		}
++	}
++	return allocated;
++}
++
++int dwc_otg_hcd_is_bandwidth_freed(dwc_otg_hcd_t * hcd, void *ep_handle)
++{
++	dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle;
++	int freed = 0;
++	DWC_ASSERT(qh, "qh is not allocated\n");
++
++	if (DWC_LIST_EMPTY(&qh->qh_list_entry)) {
++		freed = 1;
++	}
++
++	return freed;
++}
++
++uint8_t dwc_otg_hcd_get_ep_bandwidth(dwc_otg_hcd_t * hcd, void *ep_handle)
++{
++	dwc_otg_qh_t *qh = (dwc_otg_qh_t *) ep_handle;
++	DWC_ASSERT(qh, "qh is not allocated\n");
++	return qh->usecs;
++}
++
++void dwc_otg_hcd_dump_state(dwc_otg_hcd_t * hcd)
++{
++#ifdef DEBUG
++	int num_channels;
++	int i;
++	gnptxsts_data_t np_tx_status;
++	hptxsts_data_t p_tx_status;
++
++	num_channels = hcd->core_if->core_params->host_channels;
++	DWC_PRINTF("\n");
++	DWC_PRINTF
++	    ("************************************************************\n");
++	DWC_PRINTF("HCD State:\n");
++	DWC_PRINTF("  Num channels: %d\n", num_channels);
++	for (i = 0; i < num_channels; i++) {
++		dwc_hc_t *hc = hcd->hc_ptr_array[i];
++		DWC_PRINTF("  Channel %d:\n", i);
++		DWC_PRINTF("    dev_addr: %d, ep_num: %d, ep_is_in: %d\n",
++			   hc->dev_addr, hc->ep_num, hc->ep_is_in);
++		DWC_PRINTF("    speed: %d\n", hc->speed);
++		DWC_PRINTF("    ep_type: %d\n", hc->ep_type);
++		DWC_PRINTF("    max_packet: %d\n", hc->max_packet);
++		DWC_PRINTF("    data_pid_start: %d\n", hc->data_pid_start);
++		DWC_PRINTF("    multi_count: %d\n", hc->multi_count);
++		DWC_PRINTF("    xfer_started: %d\n", hc->xfer_started);
++		DWC_PRINTF("    xfer_buff: %p\n", hc->xfer_buff);
++		DWC_PRINTF("    xfer_len: %d\n", hc->xfer_len);
++		DWC_PRINTF("    xfer_count: %d\n", hc->xfer_count);
++		DWC_PRINTF("    halt_on_queue: %d\n", hc->halt_on_queue);
++		DWC_PRINTF("    halt_pending: %d\n", hc->halt_pending);
++		DWC_PRINTF("    halt_status: %d\n", hc->halt_status);
++		DWC_PRINTF("    do_split: %d\n", hc->do_split);
++		DWC_PRINTF("    complete_split: %d\n", hc->complete_split);
++		DWC_PRINTF("    hub_addr: %d\n", hc->hub_addr);
++		DWC_PRINTF("    port_addr: %d\n", hc->port_addr);
++		DWC_PRINTF("    xact_pos: %d\n", hc->xact_pos);
++		DWC_PRINTF("    requests: %d\n", hc->requests);
++		DWC_PRINTF("    qh: %p\n", hc->qh);
++		if (hc->xfer_started) {
++			hfnum_data_t hfnum;
++			hcchar_data_t hcchar;
++			hctsiz_data_t hctsiz;
++			hcint_data_t hcint;
++			hcintmsk_data_t hcintmsk;
++			hfnum.d32 =
++			    DWC_READ_REG32(&hcd->core_if->
++					   host_if->host_global_regs->hfnum);
++			hcchar.d32 =
++			    DWC_READ_REG32(&hcd->core_if->host_if->
++					   hc_regs[i]->hcchar);
++			hctsiz.d32 =
++			    DWC_READ_REG32(&hcd->core_if->host_if->
++					   hc_regs[i]->hctsiz);
++			hcint.d32 =
++			    DWC_READ_REG32(&hcd->core_if->host_if->
++					   hc_regs[i]->hcint);
++			hcintmsk.d32 =
++			    DWC_READ_REG32(&hcd->core_if->host_if->
++					   hc_regs[i]->hcintmsk);
++			DWC_PRINTF("    hfnum: 0x%08x\n", hfnum.d32);
++			DWC_PRINTF("    hcchar: 0x%08x\n", hcchar.d32);
++			DWC_PRINTF("    hctsiz: 0x%08x\n", hctsiz.d32);
++			DWC_PRINTF("    hcint: 0x%08x\n", hcint.d32);
++			DWC_PRINTF("    hcintmsk: 0x%08x\n", hcintmsk.d32);
++		}
++		if (hc->xfer_started && hc->qh) {
++			dwc_otg_qtd_t *qtd;
++			dwc_otg_hcd_urb_t *urb;
++
++			DWC_CIRCLEQ_FOREACH(qtd, &hc->qh->qtd_list, qtd_list_entry) {
++				if (!qtd->in_process)
++					break;
++
++				urb = qtd->urb;
++			DWC_PRINTF("    URB Info:\n");
++			DWC_PRINTF("      qtd: %p, urb: %p\n", qtd, urb);
++			if (urb) {
++				DWC_PRINTF("      Dev: %d, EP: %d %s\n",
++					   dwc_otg_hcd_get_dev_addr(&urb->
++								    pipe_info),
++					   dwc_otg_hcd_get_ep_num(&urb->
++								  pipe_info),
++					   dwc_otg_hcd_is_pipe_in(&urb->
++								  pipe_info) ?
++					   "IN" : "OUT");
++				DWC_PRINTF("      Max packet size: %d\n",
++					   dwc_otg_hcd_get_mps(&urb->
++							       pipe_info));
++				DWC_PRINTF("      transfer_buffer: %p\n",
++					   urb->buf);
++				DWC_PRINTF("      transfer_dma: %p\n",
++					   (void *)urb->dma);
++				DWC_PRINTF("      transfer_buffer_length: %d\n",
++					   urb->length);
++					DWC_PRINTF("      actual_length: %d\n",
++						   urb->actual_length);
++				}
++			}
++		}
++	}
++	DWC_PRINTF("  non_periodic_channels: %d\n", hcd->non_periodic_channels);
++	DWC_PRINTF("  periodic_channels: %d\n", hcd->periodic_channels);
++	DWC_PRINTF("  periodic_usecs: %d\n", hcd->periodic_usecs);
++	np_tx_status.d32 =
++	    DWC_READ_REG32(&hcd->core_if->core_global_regs->gnptxsts);
++	DWC_PRINTF("  NP Tx Req Queue Space Avail: %d\n",
++		   np_tx_status.b.nptxqspcavail);
++	DWC_PRINTF("  NP Tx FIFO Space Avail: %d\n",
++		   np_tx_status.b.nptxfspcavail);
++	p_tx_status.d32 =
++	    DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hptxsts);
++	DWC_PRINTF("  P Tx Req Queue Space Avail: %d\n",
++		   p_tx_status.b.ptxqspcavail);
++	DWC_PRINTF("  P Tx FIFO Space Avail: %d\n", p_tx_status.b.ptxfspcavail);
++	dwc_otg_hcd_dump_frrem(hcd);
++	dwc_otg_dump_global_registers(hcd->core_if);
++	dwc_otg_dump_host_registers(hcd->core_if);
++	DWC_PRINTF
++	    ("************************************************************\n");
++	DWC_PRINTF("\n");
++#endif
++}
++
++#ifdef DEBUG
++void dwc_print_setup_data(uint8_t * setup)
++{
++	int i;
++	if (CHK_DEBUG_LEVEL(DBG_HCD)) {
++		DWC_PRINTF("Setup Data = MSB ");
++		for (i = 7; i >= 0; i--)
++			DWC_PRINTF("%02x ", setup[i]);
++		DWC_PRINTF("\n");
++		DWC_PRINTF("  bmRequestType Tranfer = %s\n",
++			   (setup[0] & 0x80) ? "Device-to-Host" :
++			   "Host-to-Device");
++		DWC_PRINTF("  bmRequestType Type = ");
++		switch ((setup[0] & 0x60) >> 5) {
++		case 0:
++			DWC_PRINTF("Standard\n");
++			break;
++		case 1:
++			DWC_PRINTF("Class\n");
++			break;
++		case 2:
++			DWC_PRINTF("Vendor\n");
++			break;
++		case 3:
++			DWC_PRINTF("Reserved\n");
++			break;
++		}
++		DWC_PRINTF("  bmRequestType Recipient = ");
++		switch (setup[0] & 0x1f) {
++		case 0:
++			DWC_PRINTF("Device\n");
++			break;
++		case 1:
++			DWC_PRINTF("Interface\n");
++			break;
++		case 2:
++			DWC_PRINTF("Endpoint\n");
++			break;
++		case 3:
++			DWC_PRINTF("Other\n");
++			break;
++		default:
++			DWC_PRINTF("Reserved\n");
++			break;
++		}
++		DWC_PRINTF("  bRequest = 0x%0x\n", setup[1]);
++		DWC_PRINTF("  wValue = 0x%0x\n", *((uint16_t *) & setup[2]));
++		DWC_PRINTF("  wIndex = 0x%0x\n", *((uint16_t *) & setup[4]));
++		DWC_PRINTF("  wLength = 0x%0x\n\n", *((uint16_t *) & setup[6]));
++	}
++}
++#endif
++
++void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t * hcd)
++{
++#if 0
++	DWC_PRINTF("Frame remaining at SOF:\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->frrem_samples, hcd->frrem_accum,
++		   (hcd->frrem_samples > 0) ?
++		   hcd->frrem_accum / hcd->frrem_samples : 0);
++
++	DWC_PRINTF("\n");
++	DWC_PRINTF("Frame remaining at start_transfer (uframe 7):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->core_if->hfnum_7_samples,
++		   hcd->core_if->hfnum_7_frrem_accum,
++		   (hcd->core_if->hfnum_7_samples >
++		    0) ? hcd->core_if->hfnum_7_frrem_accum /
++		   hcd->core_if->hfnum_7_samples : 0);
++	DWC_PRINTF("Frame remaining at start_transfer (uframe 0):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->core_if->hfnum_0_samples,
++		   hcd->core_if->hfnum_0_frrem_accum,
++		   (hcd->core_if->hfnum_0_samples >
++		    0) ? hcd->core_if->hfnum_0_frrem_accum /
++		   hcd->core_if->hfnum_0_samples : 0);
++	DWC_PRINTF("Frame remaining at start_transfer (uframe 1-6):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->core_if->hfnum_other_samples,
++		   hcd->core_if->hfnum_other_frrem_accum,
++		   (hcd->core_if->hfnum_other_samples >
++		    0) ? hcd->core_if->hfnum_other_frrem_accum /
++		   hcd->core_if->hfnum_other_samples : 0);
++
++	DWC_PRINTF("\n");
++	DWC_PRINTF("Frame remaining at sample point A (uframe 7):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_7_samples_a, hcd->hfnum_7_frrem_accum_a,
++		   (hcd->hfnum_7_samples_a > 0) ?
++		   hcd->hfnum_7_frrem_accum_a / hcd->hfnum_7_samples_a : 0);
++	DWC_PRINTF("Frame remaining at sample point A (uframe 0):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_0_samples_a, hcd->hfnum_0_frrem_accum_a,
++		   (hcd->hfnum_0_samples_a > 0) ?
++		   hcd->hfnum_0_frrem_accum_a / hcd->hfnum_0_samples_a : 0);
++	DWC_PRINTF("Frame remaining at sample point A (uframe 1-6):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_other_samples_a, hcd->hfnum_other_frrem_accum_a,
++		   (hcd->hfnum_other_samples_a > 0) ?
++		   hcd->hfnum_other_frrem_accum_a /
++		   hcd->hfnum_other_samples_a : 0);
++
++	DWC_PRINTF("\n");
++	DWC_PRINTF("Frame remaining at sample point B (uframe 7):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_7_samples_b, hcd->hfnum_7_frrem_accum_b,
++		   (hcd->hfnum_7_samples_b > 0) ?
++		   hcd->hfnum_7_frrem_accum_b / hcd->hfnum_7_samples_b : 0);
++	DWC_PRINTF("Frame remaining at sample point B (uframe 0):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_0_samples_b, hcd->hfnum_0_frrem_accum_b,
++		   (hcd->hfnum_0_samples_b > 0) ?
++		   hcd->hfnum_0_frrem_accum_b / hcd->hfnum_0_samples_b : 0);
++	DWC_PRINTF("Frame remaining at sample point B (uframe 1-6):\n");
++	DWC_PRINTF("  samples %u, accum %llu, avg %llu\n",
++		   hcd->hfnum_other_samples_b, hcd->hfnum_other_frrem_accum_b,
++		   (hcd->hfnum_other_samples_b > 0) ?
++		   hcd->hfnum_other_frrem_accum_b /
++		   hcd->hfnum_other_samples_b : 0);
++#endif
++}
++
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.h
+@@ -0,0 +1,870 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd.h $
++ * $Revision: #58 $
++ * $Date: 2011/09/15 $
++ * $Change: 1846647 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++#ifndef __DWC_HCD_H__
++#define __DWC_HCD_H__
++
++#include "dwc_otg_os_dep.h"
++#include "usb.h"
++#include "dwc_otg_hcd_if.h"
++#include "dwc_otg_core_if.h"
++#include "dwc_list.h"
++#include "dwc_otg_cil.h"
++#include "dwc_otg_fiq_fsm.h"
++#include "dwc_otg_driver.h"
++
++
++/**
++ * @file
++ *
++ * This file contains the structures, constants, and interfaces for
++ * the Host Contoller Driver (HCD).
++ *
++ * The Host Controller Driver (HCD) is responsible for translating requests
++ * from the USB Driver into the appropriate actions on the DWC_otg controller.
++ * It isolates the USBD from the specifics of the controller by providing an
++ * API to the USBD.
++ */
++
++struct dwc_otg_hcd_pipe_info {
++	uint8_t dev_addr;
++	uint8_t ep_num;
++	uint8_t pipe_type;
++	uint8_t pipe_dir;
++	uint16_t mps;
++};
++
++struct dwc_otg_hcd_iso_packet_desc {
++	uint32_t offset;
++	uint32_t length;
++	uint32_t actual_length;
++	uint32_t status;
++};
++
++struct dwc_otg_qtd;
++
++struct dwc_otg_hcd_urb {
++	void *priv;
++	struct dwc_otg_qtd *qtd;
++	void *buf;
++	dwc_dma_t dma;
++	void *setup_packet;
++	dwc_dma_t setup_dma;
++	uint32_t length;
++	uint32_t actual_length;
++	uint32_t status;
++	uint32_t error_count;
++	uint32_t packet_count;
++	uint32_t flags;
++	uint16_t interval;
++	struct dwc_otg_hcd_pipe_info pipe_info;
++	struct dwc_otg_hcd_iso_packet_desc iso_descs[0];
++};
++
++static inline uint8_t dwc_otg_hcd_get_ep_num(struct dwc_otg_hcd_pipe_info *pipe)
++{
++	return pipe->ep_num;
++}
++
++static inline uint8_t dwc_otg_hcd_get_pipe_type(struct dwc_otg_hcd_pipe_info
++						*pipe)
++{
++	return pipe->pipe_type;
++}
++
++static inline uint16_t dwc_otg_hcd_get_mps(struct dwc_otg_hcd_pipe_info *pipe)
++{
++	return pipe->mps;
++}
++
++static inline uint8_t dwc_otg_hcd_get_dev_addr(struct dwc_otg_hcd_pipe_info
++					       *pipe)
++{
++	return pipe->dev_addr;
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_isoc(struct dwc_otg_hcd_pipe_info
++					       *pipe)
++{
++	return (pipe->pipe_type == UE_ISOCHRONOUS);
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_int(struct dwc_otg_hcd_pipe_info
++					      *pipe)
++{
++	return (pipe->pipe_type == UE_INTERRUPT);
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_bulk(struct dwc_otg_hcd_pipe_info
++					       *pipe)
++{
++	return (pipe->pipe_type == UE_BULK);
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_control(struct dwc_otg_hcd_pipe_info
++						  *pipe)
++{
++	return (pipe->pipe_type == UE_CONTROL);
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_in(struct dwc_otg_hcd_pipe_info *pipe)
++{
++	return (pipe->pipe_dir == UE_DIR_IN);
++}
++
++static inline uint8_t dwc_otg_hcd_is_pipe_out(struct dwc_otg_hcd_pipe_info
++					      *pipe)
++{
++	return (!dwc_otg_hcd_is_pipe_in(pipe));
++}
++
++static inline void dwc_otg_hcd_fill_pipe(struct dwc_otg_hcd_pipe_info *pipe,
++					 uint8_t devaddr, uint8_t ep_num,
++					 uint8_t pipe_type, uint8_t pipe_dir,
++					 uint16_t mps)
++{
++	pipe->dev_addr = devaddr;
++	pipe->ep_num = ep_num;
++	pipe->pipe_type = pipe_type;
++	pipe->pipe_dir = pipe_dir;
++	pipe->mps = mps;
++}
++
++/**
++ * Phases for control transfers.
++ */
++typedef enum dwc_otg_control_phase {
++	DWC_OTG_CONTROL_SETUP,
++	DWC_OTG_CONTROL_DATA,
++	DWC_OTG_CONTROL_STATUS
++} dwc_otg_control_phase_e;
++
++/** Transaction types. */
++typedef enum dwc_otg_transaction_type {
++	DWC_OTG_TRANSACTION_NONE          = 0,
++	DWC_OTG_TRANSACTION_PERIODIC      = 1,
++	DWC_OTG_TRANSACTION_NON_PERIODIC  = 2,
++	DWC_OTG_TRANSACTION_ALL           = DWC_OTG_TRANSACTION_PERIODIC + DWC_OTG_TRANSACTION_NON_PERIODIC
++} dwc_otg_transaction_type_e;
++
++struct dwc_otg_qh;
++
++/**
++ * A Queue Transfer Descriptor (QTD) holds the state of a bulk, control,
++ * interrupt, or isochronous transfer. A single QTD is created for each URB
++ * (of one of these types) submitted to the HCD. The transfer associated with
++ * a QTD may require one or multiple transactions.
++ *
++ * A QTD is linked to a Queue Head, which is entered in either the
++ * non-periodic or periodic schedule for execution. When a QTD is chosen for
++ * execution, some or all of its transactions may be executed. After
++ * execution, the state of the QTD is updated. The QTD may be retired if all
++ * its transactions are complete or if an error occurred. Otherwise, it
++ * remains in the schedule so more transactions can be executed later.
++ */
++typedef struct dwc_otg_qtd {
++	/**
++	 * Determines the PID of the next data packet for the data phase of
++	 * control transfers. Ignored for other transfer types.<br>
++	 * One of the following values:
++	 *	- DWC_OTG_HC_PID_DATA0
++	 *	- DWC_OTG_HC_PID_DATA1
++	 */
++	uint8_t data_toggle;
++
++	/** Current phase for control transfers (Setup, Data, or Status). */
++	dwc_otg_control_phase_e control_phase;
++
++	/** Keep track of the current split type
++	 * for FS/LS endpoints on a HS Hub */
++	uint8_t complete_split;
++
++	/** How many bytes transferred during SSPLIT OUT */
++	uint32_t ssplit_out_xfer_count;
++
++	/**
++	 * Holds the number of bus errors that have occurred for a transaction
++	 * within this transfer.
++	 */
++	uint8_t error_count;
++
++	/**
++	 * Index of the next frame descriptor for an isochronous transfer. A
++	 * frame descriptor describes the buffer position and length of the
++	 * data to be transferred in the next scheduled (micro)frame of an
++	 * isochronous transfer. It also holds status for that transaction.
++	 * The frame index starts at 0.
++	 */
++	uint16_t isoc_frame_index;
++
++	/** Position of the ISOC split on full/low speed */
++	uint8_t isoc_split_pos;
++
++	/** Position of the ISOC split in the buffer for the current frame */
++	uint16_t isoc_split_offset;
++
++	/** URB for this transfer */
++	struct dwc_otg_hcd_urb *urb;
++
++	struct dwc_otg_qh *qh;
++
++	/** This list of QTDs */
++	 DWC_CIRCLEQ_ENTRY(dwc_otg_qtd) qtd_list_entry;
++
++	/** Indicates if this QTD is currently processed by HW. */
++	uint8_t in_process;
++
++	/** Number of DMA descriptors for this QTD */
++	uint8_t n_desc;
++
++	/**
++	 * Last activated frame(packet) index.
++	 * Used in Descriptor DMA mode only.
++	 */
++	uint16_t isoc_frame_index_last;
++
++} dwc_otg_qtd_t;
++
++DWC_CIRCLEQ_HEAD(dwc_otg_qtd_list, dwc_otg_qtd);
++
++/**
++ * A Queue Head (QH) holds the static characteristics of an endpoint and
++ * maintains a list of transfers (QTDs) for that endpoint. A QH structure may
++ * be entered in either the non-periodic or periodic schedule.
++ */
++typedef struct dwc_otg_qh {
++	/**
++	 * Endpoint type.
++	 * One of the following values:
++	 *	- UE_CONTROL
++	 *	- UE_BULK
++	 *	- UE_INTERRUPT
++	 *	- UE_ISOCHRONOUS
++	 */
++	uint8_t ep_type;
++	uint8_t ep_is_in;
++
++	/** wMaxPacketSize Field of Endpoint Descriptor. */
++	uint16_t maxp;
++
++	/**
++	 * Device speed.
++	 * One of the following values:
++	 *	- DWC_OTG_EP_SPEED_LOW
++	 *	- DWC_OTG_EP_SPEED_FULL
++	 *	- DWC_OTG_EP_SPEED_HIGH
++	 */
++	uint8_t dev_speed;
++
++	/**
++	 * Determines the PID of the next data packet for non-control
++	 * transfers. Ignored for control transfers.<br>
++	 * One of the following values:
++	 *	- DWC_OTG_HC_PID_DATA0
++	 *	- DWC_OTG_HC_PID_DATA1
++	 */
++	uint8_t data_toggle;
++
++	/** Ping state if 1. */
++	uint8_t ping_state;
++
++	/**
++	 * List of QTDs for this QH.
++	 */
++	struct dwc_otg_qtd_list qtd_list;
++
++	/** Host channel currently processing transfers for this QH. */
++	struct dwc_hc *channel;
++
++	/** Full/low speed endpoint on high-speed hub requires split. */
++	uint8_t do_split;
++
++	/** @name Periodic schedule information */
++	/** @{ */
++
++	/** Bandwidth in microseconds per (micro)frame. */
++	uint16_t usecs;
++
++	/** Interval between transfers in (micro)frames. */
++	uint16_t interval;
++
++	/**
++	 * (micro)frame to initialize a periodic transfer. The transfer
++	 * executes in the following (micro)frame.
++	 */
++	uint16_t sched_frame;
++
++	/*
++	** Frame a NAK was received on this queue head, used to minimise NAK retransmission
++	*/
++	uint16_t nak_frame;
++
++	/** (micro)frame at which last start split was initialized. */
++	uint16_t start_split_frame;
++
++	/** @} */
++
++	/**
++	 * Used instead of original buffer if
++	 * it(physical address) is not dword-aligned.
++	 */
++	uint8_t *dw_align_buf;
++	dwc_dma_t dw_align_buf_dma;
++
++	/** Entry for QH in either the periodic or non-periodic schedule. */
++	dwc_list_link_t qh_list_entry;
++
++	/** @name Descriptor DMA support */
++	/** @{ */
++
++	/** Descriptor List. */
++	dwc_otg_host_dma_desc_t *desc_list;
++
++	/** Descriptor List physical address. */
++	dwc_dma_t desc_list_dma;
++
++	/**
++	 * Xfer Bytes array.
++	 * Each element corresponds to a descriptor and indicates
++	 * original XferSize size value for the descriptor.
++	 */
++	uint32_t *n_bytes;
++
++	/** Actual number of transfer descriptors in a list. */
++	uint16_t ntd;
++
++	/** First activated isochronous transfer descriptor index. */
++	uint8_t td_first;
++	/** Last activated isochronous transfer descriptor index. */
++	uint8_t td_last;
++
++	/** @} */
++
++
++	uint16_t speed;
++	uint16_t frame_usecs[8];
++
++	uint32_t skip_count;
++} dwc_otg_qh_t;
++
++DWC_CIRCLEQ_HEAD(hc_list, dwc_hc);
++
++typedef struct urb_tq_entry {
++	struct urb *urb;
++	DWC_TAILQ_ENTRY(urb_tq_entry) urb_tq_entries;
++} urb_tq_entry_t;
++
++DWC_TAILQ_HEAD(urb_list, urb_tq_entry);
++
++/**
++ * This structure holds the state of the HCD, including the non-periodic and
++ * periodic schedules.
++ */
++struct dwc_otg_hcd {
++	/** The DWC otg device pointer */
++	struct dwc_otg_device *otg_dev;
++	/** DWC OTG Core Interface Layer */
++	dwc_otg_core_if_t *core_if;
++
++	/** Function HCD driver callbacks */
++	struct dwc_otg_hcd_function_ops *fops;
++
++	/** Internal DWC HCD Flags */
++	volatile union dwc_otg_hcd_internal_flags {
++		uint32_t d32;
++		struct {
++			unsigned port_connect_status_change:1;
++			unsigned port_connect_status:1;
++			unsigned port_reset_change:1;
++			unsigned port_enable_change:1;
++			unsigned port_suspend_change:1;
++			unsigned port_over_current_change:1;
++			unsigned port_l1_change:1;
++			unsigned port_speed:2;
++			unsigned reserved:24;
++		} b;
++	} flags;
++
++	/**
++	 * Inactive items in the non-periodic schedule. This is a list of
++	 * Queue Heads. Transfers associated with these Queue Heads are not
++	 * currently assigned to a host channel.
++	 */
++	dwc_list_link_t non_periodic_sched_inactive;
++
++	/**
++	 * Active items in the non-periodic schedule. This is a list of
++	 * Queue Heads. Transfers associated with these Queue Heads are
++	 * currently assigned to a host channel.
++	 */
++	dwc_list_link_t non_periodic_sched_active;
++
++	/**
++	 * Pointer to the next Queue Head to process in the active
++	 * non-periodic schedule.
++	 */
++	dwc_list_link_t *non_periodic_qh_ptr;
++
++	/**
++	 * Inactive items in the periodic schedule. This is a list of QHs for
++	 * periodic transfers that are _not_ scheduled for the next frame.
++	 * Each QH in the list has an interval counter that determines when it
++	 * needs to be scheduled for execution. This scheduling mechanism
++	 * allows only a simple calculation for periodic bandwidth used (i.e.
++	 * must assume that all periodic transfers may need to execute in the
++	 * same frame). However, it greatly simplifies scheduling and should
++	 * be sufficient for the vast majority of OTG hosts, which need to
++	 * connect to a small number of peripherals at one time.
++	 *
++	 * Items move from this list to periodic_sched_ready when the QH
++	 * interval counter is 0 at SOF.
++	 */
++	dwc_list_link_t periodic_sched_inactive;
++
++	/**
++	 * List of periodic QHs that are ready for execution in the next
++	 * frame, but have not yet been assigned to host channels.
++	 *
++	 * Items move from this list to periodic_sched_assigned as host
++	 * channels become available during the current frame.
++	 */
++	dwc_list_link_t periodic_sched_ready;
++
++	/**
++	 * List of periodic QHs to be executed in the next frame that are
++	 * assigned to host channels.
++	 *
++	 * Items move from this list to periodic_sched_queued as the
++	 * transactions for the QH are queued to the DWC_otg controller.
++	 */
++	dwc_list_link_t periodic_sched_assigned;
++
++	/**
++	 * List of periodic QHs that have been queued for execution.
++	 *
++	 * Items move from this list to either periodic_sched_inactive or
++	 * periodic_sched_ready when the channel associated with the transfer
++	 * is released. If the interval for the QH is 1, the item moves to
++	 * periodic_sched_ready because it must be rescheduled for the next
++	 * frame. Otherwise, the item moves to periodic_sched_inactive.
++	 */
++	dwc_list_link_t periodic_sched_queued;
++
++	/**
++	 * Total bandwidth claimed so far for periodic transfers. This value
++	 * is in microseconds per (micro)frame. The assumption is that all
++	 * periodic transfers may occur in the same (micro)frame.
++	 */
++	uint16_t periodic_usecs;
++
++	/**
++	 * Total bandwidth claimed so far for all periodic transfers
++	 * in a frame.
++	 * This will include a mixture of HS and FS transfers.
++	 * Units are microseconds per (micro)frame.
++	 * We have a budget per frame and have to schedule
++	 * transactions accordingly.
++	 * Watch out for the fact that things are actually scheduled for the
++	 * "next frame".
++	 */
++	uint16_t                frame_usecs[8];
++
++
++	/**
++	 * Frame number read from the core at SOF. The value ranges from 0 to
++	 * DWC_HFNUM_MAX_FRNUM.
++	 */
++	uint16_t frame_number;
++
++	/**
++	 * Count of periodic QHs, if using several eps. For SOF enable/disable.
++	 */
++	uint16_t periodic_qh_count;
++
++	/**
++	 * Free host channels in the controller. This is a list of
++	 * dwc_hc_t items.
++	 */
++	struct hc_list free_hc_list;
++	/**
++	 * Number of host channels assigned to periodic transfers. Currently
++	 * assuming that there is a dedicated host channel for each periodic
++	 * transaction and at least one host channel available for
++	 * non-periodic transactions.
++	 */
++	int periodic_channels; /* microframe_schedule==0 */
++
++	/**
++	 * Number of host channels assigned to non-periodic transfers.
++	 */
++	int non_periodic_channels; /* microframe_schedule==0 */
++
++	/**
++	 * Number of host channels assigned to non-periodic transfers.
++	 */
++	int available_host_channels;
++
++	/**
++	 * Array of pointers to the host channel descriptors. Allows accessing
++	 * a host channel descriptor given the host channel number. This is
++	 * useful in interrupt handlers.
++	 */
++	struct dwc_hc *hc_ptr_array[MAX_EPS_CHANNELS];
++
++	/**
++	 * Buffer to use for any data received during the status phase of a
++	 * control transfer. Normally no data is transferred during the status
++	 * phase. This buffer is used as a bit bucket.
++	 */
++	uint8_t *status_buf;
++
++	/**
++	 * DMA address for status_buf.
++	 */
++	dma_addr_t status_buf_dma;
++#define DWC_OTG_HCD_STATUS_BUF_SIZE 64
++
++	/**
++	 * Connection timer. An OTG host must display a message if the device
++	 * does not connect. Started when the VBus power is turned on via
++	 * sysfs attribute "buspower".
++	 */
++	dwc_timer_t *conn_timer;
++
++	/* Tasket to do a reset */
++	dwc_tasklet_t *reset_tasklet;
++
++	dwc_tasklet_t *completion_tasklet;
++	struct urb_list completed_urb_list;
++
++	/*  */
++	dwc_spinlock_t *lock;
++	/**
++	 * Private data that could be used by OS wrapper.
++	 */
++	void *priv;
++
++	uint8_t otg_port;
++
++	/** Frame List */
++	uint32_t *frame_list;
++
++	/** Hub - Port assignment */
++	int hub_port[128];
++#ifdef FIQ_DEBUG
++	int hub_port_alloc[2048];
++#endif
++
++	/** Frame List DMA address */
++	dma_addr_t frame_list_dma;
++
++	struct fiq_stack *fiq_stack;
++	struct fiq_state *fiq_state;
++
++	/** Virtual address for split transaction DMA bounce buffers */
++	struct fiq_dma_blob *fiq_dmab;
++
++#ifdef DEBUG
++	uint32_t frrem_samples;
++	uint64_t frrem_accum;
++
++	uint32_t hfnum_7_samples_a;
++	uint64_t hfnum_7_frrem_accum_a;
++	uint32_t hfnum_0_samples_a;
++	uint64_t hfnum_0_frrem_accum_a;
++	uint32_t hfnum_other_samples_a;
++	uint64_t hfnum_other_frrem_accum_a;
++
++	uint32_t hfnum_7_samples_b;
++	uint64_t hfnum_7_frrem_accum_b;
++	uint32_t hfnum_0_samples_b;
++	uint64_t hfnum_0_frrem_accum_b;
++	uint32_t hfnum_other_samples_b;
++	uint64_t hfnum_other_frrem_accum_b;
++#endif
++};
++
++static inline struct device *dwc_otg_hcd_to_dev(struct dwc_otg_hcd *hcd)
++{
++	return &hcd->otg_dev->os_dep.platformdev->dev;
++}
++
++/** @name Transaction Execution Functions */
++/** @{ */
++extern dwc_otg_transaction_type_e dwc_otg_hcd_select_transactions(dwc_otg_hcd_t
++								  * hcd);
++extern void dwc_otg_hcd_queue_transactions(dwc_otg_hcd_t * hcd,
++					   dwc_otg_transaction_type_e tr_type);
++
++int dwc_otg_hcd_allocate_port(dwc_otg_hcd_t * hcd, dwc_otg_qh_t *qh);
++void dwc_otg_hcd_release_port(dwc_otg_hcd_t * dwc_otg_hcd, dwc_otg_qh_t *qh);
++
++extern int fiq_fsm_queue_transaction(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh);
++extern int fiq_fsm_transaction_suitable(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh);
++extern void dwc_otg_cleanup_fiq_channel(dwc_otg_hcd_t *hcd, uint32_t num);
++
++/** @} */
++
++/** @name Interrupt Handler Functions */
++/** @{ */
++extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t *
++							 dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t *
++							dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t *
++							   dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_incomplete_periodic_intr(dwc_otg_hcd_t *
++							   dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_conn_id_status_change_intr(dwc_otg_hcd_t *
++							     dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_disconnect_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd,
++					    uint32_t num);
++extern int32_t dwc_otg_hcd_handle_session_req_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++extern int32_t dwc_otg_hcd_handle_wakeup_detected_intr(dwc_otg_hcd_t *
++						       dwc_otg_hcd);
++/** @} */
++
++/** @name Schedule Queue Functions */
++/** @{ */
++
++/* Implemented in dwc_otg_hcd_queue.c */
++extern dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t * hcd,
++					   dwc_otg_hcd_urb_t * urb, int atomic_alloc);
++extern void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++extern int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++extern void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++extern void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
++				      int sched_csplit);
++
++/** Remove and free a QH */
++static inline void dwc_otg_hcd_qh_remove_and_free(dwc_otg_hcd_t * hcd,
++						  dwc_otg_qh_t * qh)
++{
++	dwc_irqflags_t flags;
++	DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	dwc_otg_hcd_qh_remove(hcd, qh);
++	DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++	dwc_otg_hcd_qh_free(hcd, qh);
++}
++
++/** Allocates memory for a QH structure.
++ * @return Returns the memory allocate or NULL on error. */
++static inline dwc_otg_qh_t *dwc_otg_hcd_qh_alloc(int atomic_alloc)
++{
++	if (atomic_alloc)
++		return (dwc_otg_qh_t *) DWC_ALLOC_ATOMIC(sizeof(dwc_otg_qh_t));
++	else
++		return (dwc_otg_qh_t *) DWC_ALLOC(sizeof(dwc_otg_qh_t));
++}
++
++extern dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(dwc_otg_hcd_urb_t * urb,
++					     int atomic_alloc);
++extern void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t * qtd, dwc_otg_hcd_urb_t * urb);
++extern int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * qtd, dwc_otg_hcd_t * dwc_otg_hcd,
++			       dwc_otg_qh_t ** qh, int atomic_alloc);
++
++/** Allocates memory for a QTD structure.
++ * @return Returns the memory allocate or NULL on error. */
++static inline dwc_otg_qtd_t *dwc_otg_hcd_qtd_alloc(int atomic_alloc)
++{
++	if (atomic_alloc)
++		return (dwc_otg_qtd_t *) DWC_ALLOC_ATOMIC(sizeof(dwc_otg_qtd_t));
++	else
++		return (dwc_otg_qtd_t *) DWC_ALLOC(sizeof(dwc_otg_qtd_t));
++}
++
++/** Frees the memory for a QTD structure.  QTD should already be removed from
++ * list.
++ * @param qtd QTD to free.*/
++static inline void dwc_otg_hcd_qtd_free(dwc_otg_qtd_t * qtd)
++{
++	DWC_FREE(qtd);
++}
++
++/** Removes a QTD from list.
++ * @param hcd HCD instance.
++ * @param qtd QTD to remove from list.
++ * @param qh QTD belongs to.
++ */
++static inline void dwc_otg_hcd_qtd_remove(dwc_otg_hcd_t * hcd,
++					  dwc_otg_qtd_t * qtd,
++					  dwc_otg_qh_t * qh)
++{
++	DWC_CIRCLEQ_REMOVE(&qh->qtd_list, qtd, qtd_list_entry);
++}
++
++/** Remove and free a QTD
++  * Need to disable IRQ and hold hcd lock while calling this function out of
++  * interrupt servicing chain */
++static inline void dwc_otg_hcd_qtd_remove_and_free(dwc_otg_hcd_t * hcd,
++						   dwc_otg_qtd_t * qtd,
++						   dwc_otg_qh_t * qh)
++{
++	dwc_otg_hcd_qtd_remove(hcd, qtd, qh);
++	dwc_otg_hcd_qtd_free(qtd);
++}
++
++/** @} */
++
++/** @name Descriptor DMA Supporting Functions */
++/** @{ */
++
++extern void dwc_otg_hcd_start_xfer_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++extern void dwc_otg_hcd_complete_xfer_ddma(dwc_otg_hcd_t * hcd,
++					   dwc_hc_t * hc,
++					   dwc_otg_hc_regs_t * hc_regs,
++					   dwc_otg_halt_status_e halt_status);
++
++extern int dwc_otg_hcd_qh_init_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++extern void dwc_otg_hcd_qh_free_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh);
++
++/** @} */
++
++/** @name Internal Functions */
++/** @{ */
++dwc_otg_qh_t *dwc_urb_to_qh(dwc_otg_hcd_urb_t * urb);
++/** @} */
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++extern int dwc_otg_hcd_get_hc_for_lpm_tran(dwc_otg_hcd_t * hcd,
++					   uint8_t devaddr);
++extern void dwc_otg_hcd_free_hc_from_lpm(dwc_otg_hcd_t * hcd);
++#endif
++
++/** Gets the QH that contains the list_head */
++#define dwc_list_to_qh(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qh_t, qh_list_entry)
++
++/** Gets the QTD that contains the list_head */
++#define dwc_list_to_qtd(_list_head_ptr_) container_of(_list_head_ptr_, dwc_otg_qtd_t, qtd_list_entry)
++
++/** Check if QH is non-periodic  */
++#define dwc_qh_is_non_per(_qh_ptr_) ((_qh_ptr_->ep_type == UE_BULK) || \
++				     (_qh_ptr_->ep_type == UE_CONTROL))
++
++/** High bandwidth multiplier as encoded in highspeed endpoint descriptors */
++#define dwc_hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
++
++/** Packet size for any kind of endpoint descriptor */
++#define dwc_max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
++
++/**
++ * Returns true if _frame1 is less than or equal to _frame2. The comparison is
++ * done modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the
++ * frame number when the max frame number is reached.
++ */
++static inline int dwc_frame_num_le(uint16_t frame1, uint16_t frame2)
++{
++	return ((frame2 - frame1) & DWC_HFNUM_MAX_FRNUM) <=
++	    (DWC_HFNUM_MAX_FRNUM >> 1);
++}
++
++/**
++ * Returns true if _frame1 is greater than _frame2. The comparison is done
++ * modulo DWC_HFNUM_MAX_FRNUM. This accounts for the rollover of the frame
++ * number when the max frame number is reached.
++ */
++static inline int dwc_frame_num_gt(uint16_t frame1, uint16_t frame2)
++{
++	return (frame1 != frame2) &&
++	    (((frame1 - frame2) & DWC_HFNUM_MAX_FRNUM) <
++	     (DWC_HFNUM_MAX_FRNUM >> 1));
++}
++
++/**
++ * Increments _frame by the amount specified by _inc. The addition is done
++ * modulo DWC_HFNUM_MAX_FRNUM. Returns the incremented value.
++ */
++static inline uint16_t dwc_frame_num_inc(uint16_t frame, uint16_t inc)
++{
++	return (frame + inc) & DWC_HFNUM_MAX_FRNUM;
++}
++
++static inline uint16_t dwc_full_frame_num(uint16_t frame)
++{
++	return (frame & DWC_HFNUM_MAX_FRNUM) >> 3;
++}
++
++static inline uint16_t dwc_micro_frame_num(uint16_t frame)
++{
++	return frame & 0x7;
++}
++
++extern void init_hcd_usecs(dwc_otg_hcd_t *_hcd);
++
++void dwc_otg_hcd_save_data_toggle(dwc_hc_t * hc,
++				  dwc_otg_hc_regs_t * hc_regs,
++				  dwc_otg_qtd_t * qtd);
++
++#ifdef DEBUG
++/**
++ * Macro to sample the remaining PHY clocks left in the current frame. This
++ * may be used during debugging to determine the average time it takes to
++ * execute sections of code. There are two possible sample points, "a" and
++ * "b", so the _letter argument must be one of these values.
++ *
++ * To dump the average sample times, read the "hcd_frrem" sysfs attribute. For
++ * example, "cat /sys/devices/lm0/hcd_frrem".
++ */
++#define dwc_sample_frrem(_hcd, _qh, _letter) \
++{ \
++	hfnum_data_t hfnum; \
++	dwc_otg_qtd_t *qtd; \
++	qtd = list_entry(_qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry); \
++	if (usb_pipeint(qtd->urb->pipe) && _qh->start_split_frame != 0 && !qtd->complete_split) { \
++		hfnum.d32 = DWC_READ_REG32(&_hcd->core_if->host_if->host_global_regs->hfnum); \
++		switch (hfnum.b.frnum & 0x7) { \
++		case 7: \
++			_hcd->hfnum_7_samples_##_letter++; \
++			_hcd->hfnum_7_frrem_accum_##_letter += hfnum.b.frrem; \
++			break; \
++		case 0: \
++			_hcd->hfnum_0_samples_##_letter++; \
++			_hcd->hfnum_0_frrem_accum_##_letter += hfnum.b.frrem; \
++			break; \
++		default: \
++			_hcd->hfnum_other_samples_##_letter++; \
++			_hcd->hfnum_other_frrem_accum_##_letter += hfnum.b.frrem; \
++			break; \
++		} \
++	} \
++}
++#else
++#define dwc_sample_frrem(_hcd, _qh, _letter)
++#endif
++#endif
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c
+@@ -0,0 +1,1134 @@
++/*==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_ddma.c $
++ * $Revision: #10 $
++ * $Date: 2011/10/20 $
++ * $Change: 1869464 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++
++/** @file
++ * This file contains Descriptor DMA support implementation for host mode.
++ */
++
++#include "dwc_otg_hcd.h"
++#include "dwc_otg_regs.h"
++
++extern bool microframe_schedule;
++
++static inline uint8_t frame_list_idx(uint16_t frame)
++{
++	return (frame & (MAX_FRLIST_EN_NUM - 1));
++}
++
++static inline uint16_t desclist_idx_inc(uint16_t idx, uint16_t inc, uint8_t speed)
++{
++	return (idx + inc) &
++	    (((speed ==
++	       DWC_OTG_EP_SPEED_HIGH) ? MAX_DMA_DESC_NUM_HS_ISOC :
++	      MAX_DMA_DESC_NUM_GENERIC) - 1);
++}
++
++static inline uint16_t desclist_idx_dec(uint16_t idx, uint16_t inc, uint8_t speed)
++{
++	return (idx - inc) &
++	    (((speed ==
++	       DWC_OTG_EP_SPEED_HIGH) ? MAX_DMA_DESC_NUM_HS_ISOC :
++	      MAX_DMA_DESC_NUM_GENERIC) - 1);
++}
++
++static inline uint16_t max_desc_num(dwc_otg_qh_t * qh)
++{
++	return (((qh->ep_type == UE_ISOCHRONOUS)
++		 && (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH))
++		? MAX_DMA_DESC_NUM_HS_ISOC : MAX_DMA_DESC_NUM_GENERIC);
++}
++static inline uint16_t frame_incr_val(dwc_otg_qh_t * qh)
++{
++	return ((qh->dev_speed == DWC_OTG_EP_SPEED_HIGH)
++		? ((qh->interval + 8 - 1) / 8)
++		: qh->interval);
++}
++
++static int desc_list_alloc(struct device *dev, dwc_otg_qh_t * qh)
++{
++	int retval = 0;
++
++	qh->desc_list = (dwc_otg_host_dma_desc_t *)
++	    DWC_DMA_ALLOC(dev, sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh),
++			  &qh->desc_list_dma);
++
++	if (!qh->desc_list) {
++		retval = -DWC_E_NO_MEMORY;
++		DWC_ERROR("%s: DMA descriptor list allocation failed\n", __func__);
++
++	}
++
++	dwc_memset(qh->desc_list, 0x00,
++		   sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh));
++
++	qh->n_bytes =
++	    (uint32_t *) DWC_ALLOC(sizeof(uint32_t) * max_desc_num(qh));
++
++	if (!qh->n_bytes) {
++		retval = -DWC_E_NO_MEMORY;
++		DWC_ERROR
++		    ("%s: Failed to allocate array for descriptors' size actual values\n",
++		     __func__);
++
++	}
++	return retval;
++
++}
++
++static void desc_list_free(struct device *dev, dwc_otg_qh_t * qh)
++{
++	if (qh->desc_list) {
++		DWC_DMA_FREE(dev, max_desc_num(qh), qh->desc_list,
++			     qh->desc_list_dma);
++		qh->desc_list = NULL;
++	}
++
++	if (qh->n_bytes) {
++		DWC_FREE(qh->n_bytes);
++		qh->n_bytes = NULL;
++	}
++}
++
++static int frame_list_alloc(dwc_otg_hcd_t * hcd)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++	int retval = 0;
++
++	if (hcd->frame_list)
++		return 0;
++
++	hcd->frame_list = DWC_DMA_ALLOC(dev, 4 * MAX_FRLIST_EN_NUM,
++					&hcd->frame_list_dma);
++	if (!hcd->frame_list) {
++		retval = -DWC_E_NO_MEMORY;
++		DWC_ERROR("%s: Frame List allocation failed\n", __func__);
++	}
++
++	dwc_memset(hcd->frame_list, 0x00, 4 * MAX_FRLIST_EN_NUM);
++
++	return retval;
++}
++
++static void frame_list_free(dwc_otg_hcd_t * hcd)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++
++	if (!hcd->frame_list)
++		return;
++
++	DWC_DMA_FREE(dev, 4 * MAX_FRLIST_EN_NUM, hcd->frame_list, hcd->frame_list_dma);
++	hcd->frame_list = NULL;
++}
++
++static void per_sched_enable(dwc_otg_hcd_t * hcd, uint16_t fr_list_en)
++{
++
++	hcfg_data_t hcfg;
++
++	hcfg.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hcfg);
++
++	if (hcfg.b.perschedena) {
++		/* already enabled */
++		return;
++	}
++
++	DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hflbaddr,
++			hcd->frame_list_dma);
++
++	switch (fr_list_en) {
++	case 64:
++		hcfg.b.frlisten = 3;
++		break;
++	case 32:
++		hcfg.b.frlisten = 2;
++		break;
++	case 16:
++		hcfg.b.frlisten = 1;
++		break;
++	case 8:
++		hcfg.b.frlisten = 0;
++		break;
++	default:
++		break;
++	}
++
++	hcfg.b.perschedena = 1;
++
++	DWC_DEBUGPL(DBG_HCD, "Enabling Periodic schedule\n");
++	DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hcfg, hcfg.d32);
++
++}
++
++static void per_sched_disable(dwc_otg_hcd_t * hcd)
++{
++	hcfg_data_t hcfg;
++
++	hcfg.d32 = DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hcfg);
++
++	if (!hcfg.b.perschedena) {
++		/* already disabled */
++		return;
++	}
++	hcfg.b.perschedena = 0;
++
++	DWC_DEBUGPL(DBG_HCD, "Disabling Periodic schedule\n");
++	DWC_WRITE_REG32(&hcd->core_if->host_if->host_global_regs->hcfg, hcfg.d32);
++}
++
++/*
++ * Activates/Deactivates FrameList entries for the channel
++ * based on endpoint servicing period.
++ */
++void update_frame_list(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, uint8_t enable)
++{
++	uint16_t i, j, inc;
++	dwc_hc_t *hc = NULL;
++
++	if (!qh->channel) {
++		DWC_ERROR("qh->channel = %p", qh->channel);
++		return;
++	}
++
++	if (!hcd) {
++		DWC_ERROR("------hcd = %p", hcd);
++		return;
++	}
++
++	if (!hcd->frame_list) {
++		DWC_ERROR("-------hcd->frame_list = %p", hcd->frame_list);
++		return;
++	}
++
++	hc = qh->channel;
++	inc = frame_incr_val(qh);
++	if (qh->ep_type == UE_ISOCHRONOUS)
++		i = frame_list_idx(qh->sched_frame);
++	else
++		i = 0;
++
++	j = i;
++	do {
++		if (enable)
++			hcd->frame_list[j] |= (1 << hc->hc_num);
++		else
++			hcd->frame_list[j] &= ~(1 << hc->hc_num);
++		j = (j + inc) & (MAX_FRLIST_EN_NUM - 1);
++	}
++	while (j != i);
++	if (!enable)
++		return;
++	hc->schinfo = 0;
++	if (qh->channel->speed == DWC_OTG_EP_SPEED_HIGH) {
++		j = 1;
++		/* TODO - check this */
++		inc = (8 + qh->interval - 1) / qh->interval;
++		for (i = 0; i < inc; i++) {
++			hc->schinfo |= j;
++			j = j << qh->interval;
++		}
++	} else {
++		hc->schinfo = 0xff;
++	}
++}
++
++#if 1
++void dump_frame_list(dwc_otg_hcd_t * hcd)
++{
++	int i = 0;
++	DWC_PRINTF("--FRAME LIST (hex) --\n");
++	for (i = 0; i < MAX_FRLIST_EN_NUM; i++) {
++		DWC_PRINTF("%x\t", hcd->frame_list[i]);
++		if (!(i % 8) && i)
++			DWC_PRINTF("\n");
++	}
++	DWC_PRINTF("\n----\n");
++
++}
++#endif
++
++static void release_channel_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	dwc_hc_t *hc = qh->channel;
++	if (dwc_qh_is_non_per(qh)) {
++		if (!microframe_schedule)
++			hcd->non_periodic_channels--;
++		else
++			hcd->available_host_channels++;
++	} else
++		update_frame_list(hcd, qh, 0);
++
++	/*
++	 * The condition is added to prevent double cleanup try in case of device
++	 * disconnect. See channel cleanup in dwc_otg_hcd_disconnect_cb().
++	 */
++	if (hc->qh) {
++		dwc_otg_hc_cleanup(hcd->core_if, hc);
++		DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry);
++		hc->qh = NULL;
++	}
++
++	qh->channel = NULL;
++	qh->ntd = 0;
++
++	if (qh->desc_list) {
++		dwc_memset(qh->desc_list, 0x00,
++			   sizeof(dwc_otg_host_dma_desc_t) * max_desc_num(qh));
++	}
++}
++
++/**
++ * Initializes a QH structure's Descriptor DMA related members.
++ * Allocates memory for descriptor list.
++ * On first periodic QH, allocates memory for FrameList
++ * and enables periodic scheduling.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh The QH to init.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++int dwc_otg_hcd_qh_init_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++	int retval = 0;
++
++	if (qh->do_split) {
++		DWC_ERROR("SPLIT Transfers are not supported in Descriptor DMA.\n");
++		return -1;
++	}
++
++	retval = desc_list_alloc(dev, qh);
++
++	if ((retval == 0)
++	    && (qh->ep_type == UE_ISOCHRONOUS || qh->ep_type == UE_INTERRUPT)) {
++		if (!hcd->frame_list) {
++			retval = frame_list_alloc(hcd);
++			/* Enable periodic schedule on first periodic QH */
++			if (retval == 0)
++				per_sched_enable(hcd, MAX_FRLIST_EN_NUM);
++		}
++	}
++
++	qh->ntd = 0;
++
++	return retval;
++}
++
++/**
++ * Frees descriptor list memory associated with the QH.
++ * If QH is periodic and the last, frees FrameList memory
++ * and disables periodic scheduling.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh The QH to init.
++ */
++void dwc_otg_hcd_qh_free_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++
++	desc_list_free(dev, qh);
++
++	/*
++	 * Channel still assigned due to some reasons.
++	 * Seen on Isoc URB dequeue. Channel halted but no subsequent
++	 * ChHalted interrupt to release the channel. Afterwards
++	 * when it comes here from endpoint disable routine
++	 * channel remains assigned.
++	 */
++	if (qh->channel)
++		release_channel_ddma(hcd, qh);
++
++	if ((qh->ep_type == UE_ISOCHRONOUS || qh->ep_type == UE_INTERRUPT)
++	    && (microframe_schedule || !hcd->periodic_channels) && hcd->frame_list) {
++
++		per_sched_disable(hcd);
++		frame_list_free(hcd);
++	}
++}
++
++static uint8_t frame_to_desc_idx(dwc_otg_qh_t * qh, uint16_t frame_idx)
++{
++	if (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) {
++		/*
++		 * Descriptor set(8 descriptors) index
++		 * which is 8-aligned.
++		 */
++		return (frame_idx & ((MAX_DMA_DESC_NUM_HS_ISOC / 8) - 1)) * 8;
++	} else {
++		return (frame_idx & (MAX_DMA_DESC_NUM_GENERIC - 1));
++	}
++}
++
++/*
++ * Determine starting frame for Isochronous transfer.
++ * Few frames skipped to prevent race condition with HC.
++ */
++static uint8_t calc_starting_frame(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
++				   uint8_t * skip_frames)
++{
++	uint16_t frame = 0;
++	hcd->frame_number = dwc_otg_hcd_get_frame_number(hcd);
++
++	/* sched_frame is always frame number(not uFrame) both in FS and HS !! */
++
++	/*
++	 * skip_frames is used to limit activated descriptors number
++	 * to avoid the situation when HC services the last activated
++	 * descriptor firstly.
++	 * Example for FS:
++	 * Current frame is 1, scheduled frame is 3. Since HC always fetches the descriptor
++	 * corresponding to curr_frame+1, the descriptor corresponding to frame 2
++	 * will be fetched. If the number of descriptors is max=64 (or greather) the
++	 * list will be fully programmed with Active descriptors and it is possible
++	 * case(rare) that the latest descriptor(considering rollback) corresponding
++	 * to frame 2 will be serviced first. HS case is more probable because, in fact,
++	 * up to 11 uframes(16 in the code) may be skipped.
++	 */
++	if (qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) {
++		/*
++		 * Consider uframe counter also, to start xfer asap.
++		 * If half of the frame elapsed skip 2 frames otherwise
++		 * just 1 frame.
++		 * Starting descriptor index must be 8-aligned, so
++		 * if the current frame is near to complete the next one
++		 * is skipped as well.
++		 */
++
++		if (dwc_micro_frame_num(hcd->frame_number) >= 5) {
++			*skip_frames = 2 * 8;
++			frame = dwc_frame_num_inc(hcd->frame_number, *skip_frames);
++		} else {
++			*skip_frames = 1 * 8;
++			frame = dwc_frame_num_inc(hcd->frame_number, *skip_frames);
++		}
++
++		frame = dwc_full_frame_num(frame);
++	} else {
++		/*
++		 * Two frames are skipped for FS - the current and the next.
++		 * But for descriptor programming, 1 frame(descriptor) is enough,
++		 * see example above.
++		 */
++		*skip_frames = 1;
++		frame = dwc_frame_num_inc(hcd->frame_number, 2);
++	}
++
++	return frame;
++}
++
++/*
++ * Calculate initial descriptor index for isochronous transfer
++ * based on scheduled frame.
++ */
++static uint8_t recalc_initial_desc_idx(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	uint16_t frame = 0, fr_idx, fr_idx_tmp;
++	uint8_t skip_frames = 0;
++	/*
++	 * With current ISOC processing algorithm the channel is being
++	 * released when no more QTDs in the list(qh->ntd == 0).
++	 * Thus this function is called only when qh->ntd == 0 and qh->channel == 0.
++	 *
++	 * So qh->channel != NULL branch is not used and just not removed from the
++	 * source file. It is required for another possible approach which is,
++	 * do not disable and release the channel when ISOC session completed,
++	 * just move QH to inactive schedule until new QTD arrives.
++	 * On new QTD, the QH moved back to 'ready' schedule,
++	 * starting frame and therefore starting desc_index are recalculated.
++	 * In this case channel is released only on ep_disable.
++	 */
++
++	/* Calculate starting descriptor index. For INTERRUPT endpoint it is always 0. */
++	if (qh->channel) {
++		frame = calc_starting_frame(hcd, qh, &skip_frames);
++		/*
++		 * Calculate initial descriptor index based on FrameList current bitmap
++		 * and servicing period.
++		 */
++		fr_idx_tmp = frame_list_idx(frame);
++		fr_idx =
++		    (MAX_FRLIST_EN_NUM + frame_list_idx(qh->sched_frame) -
++		     fr_idx_tmp)
++		    % frame_incr_val(qh);
++		fr_idx = (fr_idx + fr_idx_tmp) % MAX_FRLIST_EN_NUM;
++	} else {
++		qh->sched_frame = calc_starting_frame(hcd, qh, &skip_frames);
++		fr_idx = frame_list_idx(qh->sched_frame);
++	}
++
++	qh->td_first = qh->td_last = frame_to_desc_idx(qh, fr_idx);
++
++	return skip_frames;
++}
++
++#define	ISOC_URB_GIVEBACK_ASAP
++
++#define MAX_ISOC_XFER_SIZE_FS 1023
++#define MAX_ISOC_XFER_SIZE_HS 3072
++#define DESCNUM_THRESHOLD 4
++
++static void init_isoc_dma_desc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
++			       uint8_t skip_frames)
++{
++	struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++	dwc_otg_qtd_t *qtd;
++	dwc_otg_host_dma_desc_t *dma_desc;
++	uint16_t idx, inc, n_desc, ntd_max, max_xfer_size;
++
++	idx = qh->td_last;
++	inc = qh->interval;
++	n_desc = 0;
++
++	ntd_max = (max_desc_num(qh) + qh->interval - 1) / qh->interval;
++	if (skip_frames && !qh->channel)
++		ntd_max = ntd_max - skip_frames / qh->interval;
++
++	max_xfer_size =
++	    (qh->dev_speed ==
++	     DWC_OTG_EP_SPEED_HIGH) ? MAX_ISOC_XFER_SIZE_HS :
++	    MAX_ISOC_XFER_SIZE_FS;
++
++	DWC_CIRCLEQ_FOREACH(qtd, &qh->qtd_list, qtd_list_entry) {
++		while ((qh->ntd < ntd_max)
++		       && (qtd->isoc_frame_index_last <
++			   qtd->urb->packet_count)) {
++
++			dma_desc = &qh->desc_list[idx];
++			dwc_memset(dma_desc, 0x00, sizeof(dwc_otg_host_dma_desc_t));
++
++			frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index_last];
++
++			if (frame_desc->length > max_xfer_size)
++				qh->n_bytes[idx] = max_xfer_size;
++			else
++				qh->n_bytes[idx] = frame_desc->length;
++			dma_desc->status.b_isoc.n_bytes = qh->n_bytes[idx];
++			dma_desc->status.b_isoc.a = 1;
++			dma_desc->status.b_isoc.sts = 0;
++
++			dma_desc->buf = qtd->urb->dma + frame_desc->offset;
++
++			qh->ntd++;
++
++			qtd->isoc_frame_index_last++;
++
++#ifdef	ISOC_URB_GIVEBACK_ASAP
++			/*
++			 * Set IOC for each descriptor corresponding to the
++			 * last frame of the URB.
++			 */
++			if (qtd->isoc_frame_index_last ==
++			    qtd->urb->packet_count)
++				dma_desc->status.b_isoc.ioc = 1;
++
++#endif
++			idx = desclist_idx_inc(idx, inc, qh->dev_speed);
++			n_desc++;
++
++		}
++		qtd->in_process = 1;
++	}
++
++	qh->td_last = idx;
++
++#ifdef	ISOC_URB_GIVEBACK_ASAP
++	/* Set IOC for the last descriptor if descriptor list is full */
++	if (qh->ntd == ntd_max) {
++		idx = desclist_idx_dec(qh->td_last, inc, qh->dev_speed);
++		qh->desc_list[idx].status.b_isoc.ioc = 1;
++	}
++#else
++	/*
++	 * Set IOC bit only for one descriptor.
++	 * Always try to be ahead of HW processing,
++	 * i.e. on IOC generation driver activates next descriptors but
++	 * core continues to process descriptors followed the one with IOC set.
++	 */
++
++	if (n_desc > DESCNUM_THRESHOLD) {
++		/*
++		 * Move IOC "up". Required even if there is only one QTD
++		 * in the list, cause QTDs migth continue to be queued,
++		 * but during the activation it was only one queued.
++		 * Actually more than one QTD might be in the list if this function called
++		 * from XferCompletion - QTDs was queued during HW processing of the previous
++		 * descriptor chunk.
++		 */
++		idx = dwc_desclist_idx_dec(idx, inc * ((qh->ntd + 1) / 2), qh->dev_speed);
++	} else {
++		/*
++		 * Set the IOC for the latest descriptor
++		 * if either number of descriptor is not greather than threshold
++		 * or no more new descriptors activated.
++		 */
++		idx = dwc_desclist_idx_dec(qh->td_last, inc, qh->dev_speed);
++	}
++
++	qh->desc_list[idx].status.b_isoc.ioc = 1;
++#endif
++}
++
++static void init_non_isoc_dma_desc(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++
++	dwc_hc_t *hc;
++	dwc_otg_host_dma_desc_t *dma_desc;
++	dwc_otg_qtd_t *qtd;
++	int num_packets, len, n_desc = 0;
++
++	hc = qh->channel;
++
++	/*
++	 * Start with hc->xfer_buff initialized in
++	 * assign_and_init_hc(), then if SG transfer consists of multiple URBs,
++	 * this pointer re-assigned to the buffer of the currently processed QTD.
++	 * For non-SG request there is always one QTD active.
++	 */
++
++	DWC_CIRCLEQ_FOREACH(qtd, &qh->qtd_list, qtd_list_entry) {
++
++		if (n_desc) {
++			/* SG request - more than 1 QTDs */
++			hc->xfer_buff = (uint8_t *)qtd->urb->dma + qtd->urb->actual_length;
++			hc->xfer_len = qtd->urb->length - qtd->urb->actual_length;
++		}
++
++		qtd->n_desc = 0;
++
++		do {
++			dma_desc = &qh->desc_list[n_desc];
++			len = hc->xfer_len;
++
++			if (len > MAX_DMA_DESC_SIZE)
++				len = MAX_DMA_DESC_SIZE - hc->max_packet + 1;
++
++			if (hc->ep_is_in) {
++				if (len > 0) {
++					num_packets = (len + hc->max_packet - 1) / hc->max_packet;
++				} else {
++					/* Need 1 packet for transfer length of 0. */
++					num_packets = 1;
++				}
++				/* Always program an integral # of max packets for IN transfers. */
++				len = num_packets * hc->max_packet;
++			}
++
++			dma_desc->status.b.n_bytes = len;
++
++			qh->n_bytes[n_desc] = len;
++
++			if ((qh->ep_type == UE_CONTROL)
++			    && (qtd->control_phase == DWC_OTG_CONTROL_SETUP))
++				dma_desc->status.b.sup = 1;	/* Setup Packet */
++
++			dma_desc->status.b.a = 1;	/* Active descriptor */
++			dma_desc->status.b.sts = 0;
++
++			dma_desc->buf =
++			    ((unsigned long)hc->xfer_buff & 0xffffffff);
++
++			/*
++			 * Last descriptor(or single) of IN transfer
++			 * with actual size less than MaxPacket.
++			 */
++			if (len > hc->xfer_len) {
++				hc->xfer_len = 0;
++			} else {
++				hc->xfer_buff += len;
++				hc->xfer_len -= len;
++			}
++
++			qtd->n_desc++;
++			n_desc++;
++		}
++		while ((hc->xfer_len > 0) && (n_desc != MAX_DMA_DESC_NUM_GENERIC));
++
++
++		qtd->in_process = 1;
++
++		if (qh->ep_type == UE_CONTROL)
++			break;
++
++		if (n_desc == MAX_DMA_DESC_NUM_GENERIC)
++			break;
++	}
++
++	if (n_desc) {
++		/* Request Transfer Complete interrupt for the last descriptor */
++		qh->desc_list[n_desc - 1].status.b.ioc = 1;
++		/* End of List indicator */
++		qh->desc_list[n_desc - 1].status.b.eol = 1;
++
++		hc->ntd = n_desc;
++	}
++}
++
++/**
++ * For Control and Bulk endpoints initializes descriptor list
++ * and starts the transfer.
++ *
++ * For Interrupt and Isochronous endpoints initializes descriptor list
++ * then updates FrameList, marking appropriate entries as active.
++ * In case of Isochronous, the starting descriptor index is calculated based
++ * on the scheduled frame, but only on the first transfer descriptor within a session.
++ * Then starts the transfer via enabling the channel.
++ * For Isochronous endpoint the channel is not halted on XferComplete
++ * interrupt so remains assigned to the endpoint(QH) until session is done.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh The QH to init.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++void dwc_otg_hcd_start_xfer_ddma(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	/* Channel is already assigned */
++	dwc_hc_t *hc = qh->channel;
++	uint8_t skip_frames = 0;
++
++	switch (hc->ep_type) {
++	case DWC_OTG_EP_TYPE_CONTROL:
++	case DWC_OTG_EP_TYPE_BULK:
++		init_non_isoc_dma_desc(hcd, qh);
++
++		dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc);
++		break;
++	case DWC_OTG_EP_TYPE_INTR:
++		init_non_isoc_dma_desc(hcd, qh);
++
++		update_frame_list(hcd, qh, 1);
++
++		dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc);
++		break;
++	case DWC_OTG_EP_TYPE_ISOC:
++
++		if (!qh->ntd)
++			skip_frames = recalc_initial_desc_idx(hcd, qh);
++
++		init_isoc_dma_desc(hcd, qh, skip_frames);
++
++		if (!hc->xfer_started) {
++
++			update_frame_list(hcd, qh, 1);
++
++			/*
++			 * Always set to max, instead of actual size.
++			 * Otherwise ntd will be changed with
++			 * channel being enabled. Not recommended.
++			 *
++			 */
++			hc->ntd = max_desc_num(qh);
++			/* Enable channel only once for ISOC */
++			dwc_otg_hc_start_transfer_ddma(hcd->core_if, hc);
++		}
++
++		break;
++	default:
++
++		break;
++	}
++}
++
++static void complete_isoc_xfer_ddma(dwc_otg_hcd_t * hcd,
++				    dwc_hc_t * hc,
++				    dwc_otg_hc_regs_t * hc_regs,
++				    dwc_otg_halt_status_e halt_status)
++{
++	struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++	dwc_otg_qtd_t *qtd, *qtd_tmp;
++	dwc_otg_qh_t *qh;
++	dwc_otg_host_dma_desc_t *dma_desc;
++	uint16_t idx, remain;
++	uint8_t urb_compl;
++
++	qh = hc->qh;
++	idx = qh->td_first;
++
++	if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) {
++		DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry)
++		    qtd->in_process = 0;
++		return;
++	} else if ((halt_status == DWC_OTG_HC_XFER_AHB_ERR) ||
++		   (halt_status == DWC_OTG_HC_XFER_BABBLE_ERR)) {
++		/*
++		 * Channel is halted in these error cases.
++		 * Considered as serious issues.
++		 * Complete all URBs marking all frames as failed,
++		 * irrespective whether some of the descriptors(frames) succeeded or no.
++		 * Pass error code to completion routine as well, to
++		 * update urb->status, some of class drivers might use it to stop
++		 * queing transfer requests.
++		 */
++		int err = (halt_status == DWC_OTG_HC_XFER_AHB_ERR)
++		    ? (-DWC_E_IO)
++		    : (-DWC_E_OVERFLOW);
++
++		DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) {
++			for (idx = 0; idx < qtd->urb->packet_count; idx++) {
++				frame_desc = &qtd->urb->iso_descs[idx];
++				frame_desc->status = err;
++			}
++			hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, err);
++			dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh);
++		}
++		return;
++	}
++
++	DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) {
++
++		if (!qtd->in_process)
++			break;
++
++		urb_compl = 0;
++
++		do {
++
++			dma_desc = &qh->desc_list[idx];
++
++			frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			remain = hc->ep_is_in ? dma_desc->status.b_isoc.n_bytes : 0;
++
++			if (dma_desc->status.b_isoc.sts == DMA_DESC_STS_PKTERR) {
++				/*
++				 * XactError or, unable to complete all the transactions
++				 * in the scheduled micro-frame/frame,
++				 * both indicated by DMA_DESC_STS_PKTERR.
++				 */
++				qtd->urb->error_count++;
++				frame_desc->actual_length = qh->n_bytes[idx] - remain;
++				frame_desc->status = -DWC_E_PROTOCOL;
++			} else {
++				/* Success */
++
++				frame_desc->actual_length = qh->n_bytes[idx] - remain;
++				frame_desc->status = 0;
++			}
++
++			if (++qtd->isoc_frame_index == qtd->urb->packet_count) {
++				/*
++				 * urb->status is not used for isoc transfers here.
++				 * The individual frame_desc status are used instead.
++				 */
++
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh);
++
++				/*
++				 * This check is necessary because urb_dequeue can be called
++				 * from urb complete callback(sound driver example).
++				 * All pending URBs are dequeued there, so no need for
++				 * further processing.
++				 */
++				if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) {
++					return;
++				}
++
++				urb_compl = 1;
++
++			}
++
++			qh->ntd--;
++
++			/* Stop if IOC requested descriptor reached */
++			if (dma_desc->status.b_isoc.ioc) {
++				idx = desclist_idx_inc(idx, qh->interval, hc->speed);
++				goto stop_scan;
++			}
++
++			idx = desclist_idx_inc(idx, qh->interval, hc->speed);
++
++			if (urb_compl)
++				break;
++		}
++		while (idx != qh->td_first);
++	}
++stop_scan:
++	qh->td_first = idx;
++}
++
++uint8_t update_non_isoc_urb_state_ddma(dwc_otg_hcd_t * hcd,
++				       dwc_hc_t * hc,
++				       dwc_otg_qtd_t * qtd,
++				       dwc_otg_host_dma_desc_t * dma_desc,
++				       dwc_otg_halt_status_e halt_status,
++				       uint32_t n_bytes, uint8_t * xfer_done)
++{
++
++	uint16_t remain = hc->ep_is_in ? dma_desc->status.b.n_bytes : 0;
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++
++	if (halt_status == DWC_OTG_HC_XFER_AHB_ERR) {
++		urb->status = -DWC_E_IO;
++		return 1;
++	}
++	if (dma_desc->status.b.sts == DMA_DESC_STS_PKTERR) {
++		switch (halt_status) {
++		case DWC_OTG_HC_XFER_STALL:
++			urb->status = -DWC_E_PIPE;
++			break;
++		case DWC_OTG_HC_XFER_BABBLE_ERR:
++			urb->status = -DWC_E_OVERFLOW;
++			break;
++		case DWC_OTG_HC_XFER_XACT_ERR:
++			urb->status = -DWC_E_PROTOCOL;
++			break;
++		default:
++			DWC_ERROR("%s: Unhandled descriptor error status (%d)\n", __func__,
++				  halt_status);
++			break;
++		}
++		return 1;
++	}
++
++	if (dma_desc->status.b.a == 1) {
++		DWC_DEBUGPL(DBG_HCDV,
++			    "Active descriptor encountered on channel %d\n",
++			    hc->hc_num);
++		return 0;
++	}
++
++	if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL) {
++		if (qtd->control_phase == DWC_OTG_CONTROL_DATA) {
++			urb->actual_length += n_bytes - remain;
++			if (remain || urb->actual_length == urb->length) {
++				/*
++				 * For Control Data stage do not set urb->status=0 to prevent
++				 * URB callback. Set it when Status phase done. See below.
++				 */
++				*xfer_done = 1;
++			}
++
++		} else if (qtd->control_phase == DWC_OTG_CONTROL_STATUS) {
++			urb->status = 0;
++			*xfer_done = 1;
++		}
++		/* No handling for SETUP stage */
++	} else {
++		/* BULK and INTR */
++		urb->actual_length += n_bytes - remain;
++		if (remain || urb->actual_length == urb->length) {
++			urb->status = 0;
++			*xfer_done = 1;
++		}
++	}
++
++	return 0;
++}
++
++static void complete_non_isoc_xfer_ddma(dwc_otg_hcd_t * hcd,
++					dwc_hc_t * hc,
++					dwc_otg_hc_regs_t * hc_regs,
++					dwc_otg_halt_status_e halt_status)
++{
++	dwc_otg_hcd_urb_t *urb = NULL;
++	dwc_otg_qtd_t *qtd, *qtd_tmp;
++	dwc_otg_qh_t *qh;
++	dwc_otg_host_dma_desc_t *dma_desc;
++	uint32_t n_bytes, n_desc, i;
++	uint8_t failed = 0, xfer_done;
++
++	n_desc = 0;
++
++	qh = hc->qh;
++
++	if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) {
++		DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &hc->qh->qtd_list, qtd_list_entry) {
++			qtd->in_process = 0;
++		}
++		return;
++	}
++
++	DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &qh->qtd_list, qtd_list_entry) {
++
++		urb = qtd->urb;
++
++		n_bytes = 0;
++		xfer_done = 0;
++
++		for (i = 0; i < qtd->n_desc; i++) {
++			dma_desc = &qh->desc_list[n_desc];
++
++			n_bytes = qh->n_bytes[n_desc];
++
++			failed =
++			    update_non_isoc_urb_state_ddma(hcd, hc, qtd,
++							   dma_desc,
++							   halt_status, n_bytes,
++							   &xfer_done);
++
++			if (failed
++			    || (xfer_done
++				&& (urb->status != -DWC_E_IN_PROGRESS))) {
++
++				hcd->fops->complete(hcd, urb->priv, urb,
++						    urb->status);
++				dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh);
++
++				if (failed)
++					goto stop_scan;
++			} else if (qh->ep_type == UE_CONTROL) {
++				if (qtd->control_phase == DWC_OTG_CONTROL_SETUP) {
++					if (urb->length > 0) {
++						qtd->control_phase = DWC_OTG_CONTROL_DATA;
++					} else {
++						qtd->control_phase = DWC_OTG_CONTROL_STATUS;
++					}
++					DWC_DEBUGPL(DBG_HCDV, "  Control setup transaction done\n");
++				} else if (qtd->control_phase == DWC_OTG_CONTROL_DATA) {
++					if (xfer_done) {
++						qtd->control_phase = DWC_OTG_CONTROL_STATUS;
++						DWC_DEBUGPL(DBG_HCDV, "  Control data transfer done\n");
++					} else if (i + 1 == qtd->n_desc) {
++						/*
++						 * Last descriptor for Control data stage which is
++						 * not completed yet.
++						 */
++						dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++					}
++				}
++			}
++
++			n_desc++;
++		}
++
++	}
++
++stop_scan:
++
++	if (qh->ep_type != UE_CONTROL) {
++		/*
++		 * Resetting the data toggle for bulk
++		 * and interrupt endpoints in case of stall. See handle_hc_stall_intr()
++		 */
++		if (halt_status == DWC_OTG_HC_XFER_STALL)
++			qh->data_toggle = DWC_OTG_HC_PID_DATA0;
++		else
++			dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++	}
++
++	if (halt_status == DWC_OTG_HC_XFER_COMPLETE) {
++		hcint_data_t hcint;
++		hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++		if (hcint.b.nyet) {
++			/*
++			 * Got a NYET on the last transaction of the transfer. It
++			 * means that the endpoint should be in the PING state at the
++			 * beginning of the next transfer.
++			 */
++			qh->ping_state = 1;
++			clear_hc_int(hc_regs, nyet);
++		}
++
++	}
++
++}
++
++/**
++ * This function is called from interrupt handlers.
++ * Scans the descriptor list, updates URB's status and
++ * calls completion routine for the URB if it's done.
++ * Releases the channel to be used by other transfers.
++ * In case of Isochronous endpoint the channel is not halted until
++ * the end of the session, i.e. QTD list is empty.
++ * If periodic channel released the FrameList is updated accordingly.
++ *
++ * Calls transaction selection routines to activate pending transfers.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param hc Host channel, the transfer is completed on.
++ * @param hc_regs Host channel registers.
++ * @param halt_status Reason the channel is being halted,
++ *		      or just XferComplete for isochronous transfer
++ */
++void dwc_otg_hcd_complete_xfer_ddma(dwc_otg_hcd_t * hcd,
++				    dwc_hc_t * hc,
++				    dwc_otg_hc_regs_t * hc_regs,
++				    dwc_otg_halt_status_e halt_status)
++{
++	uint8_t continue_isoc_xfer = 0;
++	dwc_otg_transaction_type_e tr_type;
++	dwc_otg_qh_t *qh = hc->qh;
++
++	if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++
++		complete_isoc_xfer_ddma(hcd, hc, hc_regs, halt_status);
++
++		/* Release the channel if halted or session completed */
++		if (halt_status != DWC_OTG_HC_XFER_COMPLETE ||
++		    DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) {
++
++			/* Halt the channel if session completed */
++			if (halt_status == DWC_OTG_HC_XFER_COMPLETE) {
++				dwc_otg_hc_halt(hcd->core_if, hc, halt_status);
++			}
++
++			release_channel_ddma(hcd, qh);
++			dwc_otg_hcd_qh_remove(hcd, qh);
++		} else {
++			/* Keep in assigned schedule to continue transfer */
++			DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned,
++					   &qh->qh_list_entry);
++			continue_isoc_xfer = 1;
++
++		}
++		/** @todo Consider the case when period exceeds FrameList size.
++		 *  Frame Rollover interrupt should be used.
++		 */
++	} else {
++		/* Scan descriptor list to complete the URB(s), then release the channel */
++		complete_non_isoc_xfer_ddma(hcd, hc, hc_regs, halt_status);
++
++		release_channel_ddma(hcd, qh);
++		dwc_otg_hcd_qh_remove(hcd, qh);
++
++		if (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) {
++			/* Add back to inactive non-periodic schedule on normal completion */
++			dwc_otg_hcd_qh_add(hcd, qh);
++		}
++
++	}
++	tr_type = dwc_otg_hcd_select_transactions(hcd);
++	if (tr_type != DWC_OTG_TRANSACTION_NONE || continue_isoc_xfer) {
++		if (continue_isoc_xfer) {
++			if (tr_type == DWC_OTG_TRANSACTION_NONE) {
++				tr_type = DWC_OTG_TRANSACTION_PERIODIC;
++			} else if (tr_type == DWC_OTG_TRANSACTION_NON_PERIODIC) {
++				tr_type = DWC_OTG_TRANSACTION_ALL;
++			}
++		}
++		dwc_otg_hcd_queue_transactions(hcd, tr_type);
++	}
++}
++
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_if.h
+@@ -0,0 +1,421 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_if.h $
++ * $Revision: #12 $
++ * $Date: 2011/10/26 $
++ * $Change: 1873028 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++#ifndef __DWC_HCD_IF_H__
++#define __DWC_HCD_IF_H__
++
++#include "dwc_otg_core_if.h"
++
++/** @file
++ * This file defines DWC_OTG HCD Core API.
++ */
++
++struct dwc_otg_hcd;
++typedef struct dwc_otg_hcd dwc_otg_hcd_t;
++
++struct dwc_otg_hcd_urb;
++typedef struct dwc_otg_hcd_urb dwc_otg_hcd_urb_t;
++
++/** @name HCD Function Driver Callbacks */
++/** @{ */
++
++/** This function is called whenever core switches to host mode. */
++typedef int (*dwc_otg_hcd_start_cb_t) (dwc_otg_hcd_t * hcd);
++
++/** This function is called when device has been disconnected */
++typedef int (*dwc_otg_hcd_disconnect_cb_t) (dwc_otg_hcd_t * hcd);
++
++/** Wrapper provides this function to HCD to core, so it can get hub information to which device is connected */
++typedef int (*dwc_otg_hcd_hub_info_from_urb_cb_t) (dwc_otg_hcd_t * hcd,
++						   void *urb_handle,
++						   uint32_t * hub_addr,
++						   uint32_t * port_addr);
++/** Via this function HCD core gets device speed */
++typedef int (*dwc_otg_hcd_speed_from_urb_cb_t) (dwc_otg_hcd_t * hcd,
++						void *urb_handle);
++
++/** This function is called when urb is completed */
++typedef int (*dwc_otg_hcd_complete_urb_cb_t) (dwc_otg_hcd_t * hcd,
++					      void *urb_handle,
++					      dwc_otg_hcd_urb_t * dwc_otg_urb,
++					      int32_t status);
++
++/** Via this function HCD core gets b_hnp_enable parameter */
++typedef int (*dwc_otg_hcd_get_b_hnp_enable) (dwc_otg_hcd_t * hcd);
++
++struct dwc_otg_hcd_function_ops {
++	dwc_otg_hcd_start_cb_t start;
++	dwc_otg_hcd_disconnect_cb_t disconnect;
++	dwc_otg_hcd_hub_info_from_urb_cb_t hub_info;
++	dwc_otg_hcd_speed_from_urb_cb_t speed;
++	dwc_otg_hcd_complete_urb_cb_t complete;
++	dwc_otg_hcd_get_b_hnp_enable get_b_hnp_enable;
++};
++/** @} */
++
++/** @name HCD Core API */
++/** @{ */
++/** This function allocates dwc_otg_hcd structure and returns pointer on it. */
++extern dwc_otg_hcd_t *dwc_otg_hcd_alloc_hcd(void);
++
++/** This function should be called to initiate HCD Core.
++ *
++ * @param hcd The HCD
++ * @param core_if The DWC_OTG Core
++ *
++ * Returns -DWC_E_NO_MEMORY if no enough memory.
++ * Returns 0 on success
++ */
++extern int dwc_otg_hcd_init(dwc_otg_hcd_t * hcd, dwc_otg_core_if_t * core_if);
++
++/** Frees HCD
++ *
++ * @param hcd The HCD
++ */
++extern void dwc_otg_hcd_remove(dwc_otg_hcd_t * hcd);
++
++/** This function should be called on every hardware interrupt.
++ *
++ * @param dwc_otg_hcd The HCD
++ *
++ * Returns non zero if interrupt is handled
++ * Return 0 if interrupt is not handled
++ */
++extern int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd);
++
++/** This function is used to handle the fast interrupt
++ *
++ */
++#ifdef CONFIG_ARM64
++extern void dwc_otg_hcd_handle_fiq(void);
++#else
++extern void __attribute__ ((naked)) dwc_otg_hcd_handle_fiq(void);
++#endif
++
++/**
++ * Returns private data set by
++ * dwc_otg_hcd_set_priv_data function.
++ *
++ * @param hcd The HCD
++ */
++extern void *dwc_otg_hcd_get_priv_data(dwc_otg_hcd_t * hcd);
++
++/**
++ * Set private data.
++ *
++ * @param hcd The HCD
++ * @param priv_data pointer to be stored in private data
++ */
++extern void dwc_otg_hcd_set_priv_data(dwc_otg_hcd_t * hcd, void *priv_data);
++
++/**
++ * This function initializes the HCD Core.
++ *
++ * @param hcd The HCD
++ * @param fops The Function Driver Operations data structure containing pointers to all callbacks.
++ *
++ * Returns -DWC_E_NO_DEVICE if Core is currently is in device mode.
++ * Returns 0 on success
++ */
++extern int dwc_otg_hcd_start(dwc_otg_hcd_t * hcd,
++			     struct dwc_otg_hcd_function_ops *fops);
++
++/**
++ * Halts the DWC_otg host mode operations in a clean manner. USB transfers are
++ * stopped.
++ *
++ * @param hcd The HCD
++ */
++extern void dwc_otg_hcd_stop(dwc_otg_hcd_t * hcd);
++
++/**
++ * Handles hub class-specific requests.
++ *
++ * @param dwc_otg_hcd The HCD
++ * @param typeReq Request Type
++ * @param wValue wValue from control request
++ * @param wIndex wIndex from control request
++ * @param buf data buffer
++ * @param wLength data buffer length
++ *
++ * Returns -DWC_E_INVALID if invalid argument is passed
++ * Returns 0 on success
++ */
++extern int dwc_otg_hcd_hub_control(dwc_otg_hcd_t * dwc_otg_hcd,
++				   uint16_t typeReq, uint16_t wValue,
++				   uint16_t wIndex, uint8_t * buf,
++				   uint16_t wLength);
++
++/**
++ * Returns otg port number.
++ *
++ * @param hcd The HCD
++ */
++extern uint32_t dwc_otg_hcd_otg_port(dwc_otg_hcd_t * hcd);
++
++/**
++ * Returns OTG version - either 1.3 or 2.0.
++ *
++ * @param core_if The core_if structure pointer
++ */
++extern uint16_t dwc_otg_get_otg_version(dwc_otg_core_if_t * core_if);
++
++/**
++ * Returns 1 if currently core is acting as B host, and 0 otherwise.
++ *
++ * @param hcd The HCD
++ */
++extern uint32_t dwc_otg_hcd_is_b_host(dwc_otg_hcd_t * hcd);
++
++/**
++ * Returns current frame number.
++ *
++ * @param hcd The HCD
++ */
++extern int dwc_otg_hcd_get_frame_number(dwc_otg_hcd_t * hcd);
++
++/**
++ * Dumps hcd state.
++ *
++ * @param hcd The HCD
++ */
++extern void dwc_otg_hcd_dump_state(dwc_otg_hcd_t * hcd);
++
++/**
++ * Dump the average frame remaining at SOF. This can be used to
++ * determine average interrupt latency. Frame remaining is also shown for
++ * start transfer and two additional sample points.
++ * Currently this function is not implemented.
++ *
++ * @param hcd The HCD
++ */
++extern void dwc_otg_hcd_dump_frrem(dwc_otg_hcd_t * hcd);
++
++/**
++ * Sends LPM transaction to the local device.
++ *
++ * @param hcd The HCD
++ * @param devaddr Device Address
++ * @param hird Host initiated resume duration
++ * @param bRemoteWake Value of bRemoteWake field in LPM transaction
++ *
++ * Returns negative value if sending LPM transaction was not succeeded.
++ * Returns 0 on success.
++ */
++extern int dwc_otg_hcd_send_lpm(dwc_otg_hcd_t * hcd, uint8_t devaddr,
++				uint8_t hird, uint8_t bRemoteWake);
++
++/* URB interface */
++
++/**
++ * Allocates memory for dwc_otg_hcd_urb structure.
++ * Allocated memory should be freed by call of DWC_FREE.
++ *
++ * @param hcd The HCD
++ * @param iso_desc_count Count of ISOC descriptors
++ * @param atomic_alloc Specefies whether to perform atomic allocation.
++ */
++extern dwc_otg_hcd_urb_t *dwc_otg_hcd_urb_alloc(dwc_otg_hcd_t * hcd,
++						int iso_desc_count,
++						int atomic_alloc);
++
++/**
++ * Set pipe information in URB.
++ *
++ * @param hcd_urb DWC_OTG URB
++ * @param devaddr Device Address
++ * @param ep_num Endpoint Number
++ * @param ep_type Endpoint Type
++ * @param ep_dir Endpoint Direction
++ * @param mps Max Packet Size
++ */
++extern void dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_hcd_urb_t * hcd_urb,
++					 uint8_t devaddr, uint8_t ep_num,
++					 uint8_t ep_type, uint8_t ep_dir,
++					 uint16_t mps);
++
++/* Transfer flags */
++#define URB_GIVEBACK_ASAP 0x1
++#define URB_SEND_ZERO_PACKET 0x2
++
++/**
++ * Sets dwc_otg_hcd_urb parameters.
++ *
++ * @param urb DWC_OTG URB allocated by dwc_otg_hcd_urb_alloc function.
++ * @param urb_handle Unique handle for request, this will be passed back
++ * to function driver in completion callback.
++ * @param buf The buffer for the data
++ * @param dma The DMA buffer for the data
++ * @param buflen Transfer length
++ * @param sp Buffer for setup data
++ * @param sp_dma DMA address of setup data buffer
++ * @param flags Transfer flags
++ * @param interval Polling interval for interrupt or isochronous transfers.
++ */
++extern void dwc_otg_hcd_urb_set_params(dwc_otg_hcd_urb_t * urb,
++				       void *urb_handle, void *buf,
++				       dwc_dma_t dma, uint32_t buflen, void *sp,
++				       dwc_dma_t sp_dma, uint32_t flags,
++				       uint16_t interval);
++
++/** Gets status from dwc_otg_hcd_urb
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ */
++extern uint32_t dwc_otg_hcd_urb_get_status(dwc_otg_hcd_urb_t * dwc_otg_urb);
++
++/** Gets actual length from dwc_otg_hcd_urb
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ */
++extern uint32_t dwc_otg_hcd_urb_get_actual_length(dwc_otg_hcd_urb_t *
++						  dwc_otg_urb);
++
++/** Gets error count from dwc_otg_hcd_urb. Only for ISOC URBs
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ */
++extern uint32_t dwc_otg_hcd_urb_get_error_count(dwc_otg_hcd_urb_t *
++						dwc_otg_urb);
++
++/** Set ISOC descriptor offset and length
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ * @param desc_num ISOC descriptor number
++ * @param offset Offset from beginig of buffer.
++ * @param length Transaction length
++ */
++extern void dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_hcd_urb_t * dwc_otg_urb,
++						int desc_num, uint32_t offset,
++						uint32_t length);
++
++/** Get status of ISOC descriptor, specified by desc_num
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ * @param desc_num ISOC descriptor number
++ */
++extern uint32_t dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_hcd_urb_t *
++						    dwc_otg_urb, int desc_num);
++
++/** Get actual length of ISOC descriptor, specified by desc_num
++ *
++ * @param dwc_otg_urb DWC_OTG URB
++ * @param desc_num ISOC descriptor number
++ */
++extern uint32_t dwc_otg_hcd_urb_get_iso_desc_actual_length(dwc_otg_hcd_urb_t *
++							   dwc_otg_urb,
++							   int desc_num);
++
++/** Queue URB. After transfer is completes, the complete callback will be called with the URB status
++ *
++ * @param dwc_otg_hcd The HCD
++ * @param dwc_otg_urb DWC_OTG URB
++ * @param ep_handle Out parameter for returning endpoint handle
++ * @param atomic_alloc Flag to do atomic allocation if needed
++ *
++ * Returns -DWC_E_NO_DEVICE if no device is connected.
++ * Returns -DWC_E_NO_MEMORY if there is no enough memory.
++ * Returns 0 on success.
++ */
++extern int dwc_otg_hcd_urb_enqueue(dwc_otg_hcd_t * dwc_otg_hcd,
++				   dwc_otg_hcd_urb_t * dwc_otg_urb,
++				   void **ep_handle, int atomic_alloc);
++
++/** De-queue the specified URB
++ *
++ * @param dwc_otg_hcd The HCD
++ * @param dwc_otg_urb DWC_OTG URB
++ */
++extern int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_t * dwc_otg_hcd,
++				   dwc_otg_hcd_urb_t * dwc_otg_urb);
++
++/** Frees resources in the DWC_otg controller related to a given endpoint.
++ * Any URBs for the endpoint must already be dequeued.
++ *
++ * @param hcd The HCD
++ * @param ep_handle Endpoint handle, returned by dwc_otg_hcd_urb_enqueue function
++ * @param retry Number of retries if there are queued transfers.
++ *
++ * Returns -DWC_E_INVALID if invalid arguments are passed.
++ * Returns 0 on success
++ */
++extern int dwc_otg_hcd_endpoint_disable(dwc_otg_hcd_t * hcd, void *ep_handle,
++					int retry);
++
++/* Resets the data toggle in qh structure. This function can be called from
++ * usb_clear_halt routine.
++ *
++ * @param hcd The HCD
++ * @param ep_handle Endpoint handle, returned by dwc_otg_hcd_urb_enqueue function
++ *
++ * Returns -DWC_E_INVALID if invalid arguments are passed.
++ * Returns 0 on success
++ */
++extern int dwc_otg_hcd_endpoint_reset(dwc_otg_hcd_t * hcd, void *ep_handle);
++
++/** Returns 1 if status of specified port is changed and 0 otherwise.
++ *
++ * @param hcd The HCD
++ * @param port Port number
++ */
++extern int dwc_otg_hcd_is_status_changed(dwc_otg_hcd_t * hcd, int port);
++
++/** Call this function to check if bandwidth was allocated for specified endpoint.
++ * Only for ISOC and INTERRUPT endpoints.
++ *
++ * @param hcd The HCD
++ * @param ep_handle Endpoint handle
++ */
++extern int dwc_otg_hcd_is_bandwidth_allocated(dwc_otg_hcd_t * hcd,
++					      void *ep_handle);
++
++/** Call this function to check if bandwidth was freed for specified endpoint.
++ *
++ * @param hcd The HCD
++ * @param ep_handle Endpoint handle
++ */
++extern int dwc_otg_hcd_is_bandwidth_freed(dwc_otg_hcd_t * hcd, void *ep_handle);
++
++/** Returns bandwidth allocated for specified endpoint in microseconds.
++ * Only for ISOC and INTERRUPT endpoints.
++ *
++ * @param hcd The HCD
++ * @param ep_handle Endpoint handle
++ */
++extern uint8_t dwc_otg_hcd_get_ep_bandwidth(dwc_otg_hcd_t * hcd,
++					    void *ep_handle);
++
++/** @} */
++
++#endif /* __DWC_HCD_IF_H__ */
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
+@@ -0,0 +1,2757 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_intr.c $
++ * $Revision: #89 $
++ * $Date: 2011/10/20 $
++ * $Change: 1869487 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++
++#include "dwc_otg_hcd.h"
++#include "dwc_otg_regs.h"
++
++#include <linux/jiffies.h>
++#ifdef CONFIG_ARM
++#include <asm/fiq.h>
++#endif
++
++extern bool microframe_schedule;
++
++/** @file
++ * This file contains the implementation of the HCD Interrupt handlers.
++ */
++
++int fiq_done, int_done;
++
++#ifdef FIQ_DEBUG
++char buffer[1000*16];
++int wptr;
++void notrace _fiq_print(FIQDBG_T dbg_lvl, char *fmt, ...)
++{
++	FIQDBG_T dbg_lvl_req = FIQDBG_PORTHUB;
++	va_list args;
++	char text[17];
++	hfnum_data_t hfnum = { .d32 = FIQ_READ(dwc_regs_base + 0x408) };
++
++	if(dbg_lvl & dbg_lvl_req || dbg_lvl == FIQDBG_ERR)
++	{
++		local_fiq_disable();
++		snprintf(text, 9, "%4d%d:%d ", hfnum.b.frnum/8, hfnum.b.frnum%8, 8 - hfnum.b.frrem/937);
++		va_start(args, fmt);
++		vsnprintf(text+8, 9, fmt, args);
++		va_end(args);
++
++		memcpy(buffer + wptr, text, 16);
++		wptr = (wptr + 16) % sizeof(buffer);
++		local_fiq_enable();
++	}
++}
++#endif
++
++/** This function handles interrupts for the HCD. */
++int32_t dwc_otg_hcd_handle_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	int retval = 0;
++	static int last_time;
++	dwc_otg_core_if_t *core_if = dwc_otg_hcd->core_if;
++	gintsts_data_t gintsts;
++	gintmsk_data_t gintmsk;
++	hfnum_data_t hfnum;
++	haintmsk_data_t haintmsk;
++
++#ifdef DEBUG
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++
++#endif
++
++	gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++	gintmsk.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++
++	/* Exit from ISR if core is hibernated */
++	if (core_if->hibernation_suspend == 1) {
++		goto exit_handler_routine;
++	}
++	DWC_SPINLOCK(dwc_otg_hcd->lock);
++	/* Check if HOST Mode */
++	if (dwc_otg_is_host_mode(core_if)) {
++		if (fiq_enable) {
++			local_fiq_disable();
++			fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock);
++			/* Pull in from the FIQ's disabled mask */
++			gintmsk.d32 = gintmsk.d32 | ~(dwc_otg_hcd->fiq_state->gintmsk_saved.d32);
++			dwc_otg_hcd->fiq_state->gintmsk_saved.d32 = ~0;
++		}
++
++		if (fiq_fsm_enable && ( 0x0000FFFF & ~(dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint))) {
++			gintsts.b.hcintr = 1;
++		}
++
++		/* Danger will robinson: fake a SOF if necessary */
++		if (fiq_fsm_enable && (dwc_otg_hcd->fiq_state->gintmsk_saved.b.sofintr == 1)) {
++			gintsts.b.sofintr = 1;
++		}
++		gintsts.d32 &= gintmsk.d32;
++
++		if (fiq_enable) {
++			fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock);
++			local_fiq_enable();
++		}
++
++		if (!gintsts.d32) {
++			goto exit_handler_routine;
++		}
++
++#ifdef DEBUG
++		// We should be OK doing this because the common interrupts should already have been serviced
++		/* Don't print debug message in the interrupt handler on SOF */
++#ifndef DEBUG_SOF
++		if (gintsts.d32 != DWC_SOF_INTR_MASK)
++#endif
++			DWC_DEBUGPL(DBG_HCDI, "\n");
++#endif
++
++#ifdef DEBUG
++#ifndef DEBUG_SOF
++		if (gintsts.d32 != DWC_SOF_INTR_MASK)
++#endif
++			DWC_DEBUGPL(DBG_HCDI,
++				    "DWC OTG HCD Interrupt Detected gintsts&gintmsk=0x%08x core_if=%p\n",
++				    gintsts.d32, core_if);
++#endif
++		hfnum.d32 = DWC_READ_REG32(&dwc_otg_hcd->core_if->host_if->host_global_regs->hfnum);
++		if (gintsts.b.sofintr) {
++			retval |= dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd);
++		}
++
++		if (gintsts.b.rxstsqlvl) {
++			retval |=
++			    dwc_otg_hcd_handle_rx_status_q_level_intr
++			    (dwc_otg_hcd);
++		}
++		if (gintsts.b.nptxfempty) {
++			retval |=
++			    dwc_otg_hcd_handle_np_tx_fifo_empty_intr
++			    (dwc_otg_hcd);
++		}
++		if (gintsts.b.i2cintr) {
++			/** @todo Implement i2cintr handler. */
++		}
++		if (gintsts.b.portintr) {
++
++			gintmsk_data_t gintmsk = { .b.portintr = 1};
++			retval |= dwc_otg_hcd_handle_port_intr(dwc_otg_hcd);
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32);
++				fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&dwc_otg_hcd->core_if->core_global_regs->gintmsk, 0, gintmsk.d32);
++			}
++		}
++		if (gintsts.b.hcintr) {
++			retval |= dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd);
++		}
++		if (gintsts.b.ptxfempty) {
++			retval |=
++			    dwc_otg_hcd_handle_perio_tx_fifo_empty_intr
++			    (dwc_otg_hcd);
++		}
++#ifdef DEBUG
++#ifndef DEBUG_SOF
++		if (gintsts.d32 != DWC_SOF_INTR_MASK)
++#endif
++		{
++			DWC_DEBUGPL(DBG_HCDI,
++				    "DWC OTG HCD Finished Servicing Interrupts\n");
++			DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintsts=0x%08x\n",
++				    DWC_READ_REG32(&global_regs->gintsts));
++			DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD gintmsk=0x%08x\n",
++				    DWC_READ_REG32(&global_regs->gintmsk));
++		}
++#endif
++
++#ifdef DEBUG
++#ifndef DEBUG_SOF
++		if (gintsts.d32 != DWC_SOF_INTR_MASK)
++#endif
++			DWC_DEBUGPL(DBG_HCDI, "\n");
++#endif
++
++	}
++
++exit_handler_routine:
++	if (fiq_enable)	{
++		gintmsk_data_t gintmsk_new;
++		haintmsk_data_t haintmsk_new;
++		local_fiq_disable();
++		fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock);
++		gintmsk_new.d32 = *(volatile uint32_t *)&dwc_otg_hcd->fiq_state->gintmsk_saved.d32;
++		if(fiq_fsm_enable)
++			haintmsk_new.d32 = *(volatile uint32_t *)&dwc_otg_hcd->fiq_state->haintmsk_saved.d32;
++		else
++			haintmsk_new.d32 = 0x0000FFFF;
++
++		/* The FIQ could have sneaked another interrupt in. If so, don't clear MPHI */
++		if ((gintmsk_new.d32 == ~0) && (haintmsk_new.d32 == 0x0000FFFF)) {
++			if (dwc_otg_hcd->fiq_state->mphi_regs.swirq_clr) {
++				DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.swirq_clr, 1);
++			} else {
++				DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.intstat, (1<<16));
++			}
++			if (dwc_otg_hcd->fiq_state->mphi_int_count >= 50) {
++				fiq_print(FIQDBG_INT, dwc_otg_hcd->fiq_state, "MPHI CLR");
++					DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl, ((1<<31) + (1<<16)));
++					while (!(DWC_READ_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl) & (1 << 17)))
++						;
++					DWC_WRITE_REG32(dwc_otg_hcd->fiq_state->mphi_regs.ctrl, (1<<31));
++					dwc_otg_hcd->fiq_state->mphi_int_count = 0;
++			}
++			int_done++;
++		}
++		haintmsk.d32 = DWC_READ_REG32(&core_if->host_if->host_global_regs->haintmsk);
++		/* Re-enable interrupts that the FIQ masked (first time round) */
++		FIQ_WRITE(dwc_otg_hcd->fiq_state->dwc_regs_base + GINTMSK, gintmsk.d32);
++		fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock);
++		local_fiq_enable();
++
++		if ((jiffies / HZ) > last_time) {
++			//dwc_otg_qh_t *qh;
++			//dwc_list_link_t *cur;
++			/* Once a second output the fiq and irq numbers, useful for debug */
++			last_time = jiffies / HZ;
++		//	 DWC_WARN("np_kick=%d AHC=%d sched_frame=%d cur_frame=%d int_done=%d fiq_done=%d",
++		//	dwc_otg_hcd->fiq_state->kick_np_queues, dwc_otg_hcd->available_host_channels,
++		//	dwc_otg_hcd->fiq_state->next_sched_frame, hfnum.b.frnum, int_done, dwc_otg_hcd->fiq_state->fiq_done);
++			 //printk(KERN_WARNING "Periodic queues:\n");
++		}
++	}
++
++	DWC_SPINUNLOCK(dwc_otg_hcd->lock);
++	return retval;
++}
++
++#ifdef DWC_TRACK_MISSED_SOFS
++
++#warning Compiling code to track missed SOFs
++#define FRAME_NUM_ARRAY_SIZE 1000
++/**
++ * This function is for debug only.
++ */
++static inline void track_missed_sofs(uint16_t curr_frame_number)
++{
++	static uint16_t frame_num_array[FRAME_NUM_ARRAY_SIZE];
++	static uint16_t last_frame_num_array[FRAME_NUM_ARRAY_SIZE];
++	static int frame_num_idx = 0;
++	static uint16_t last_frame_num = DWC_HFNUM_MAX_FRNUM;
++	static int dumped_frame_num_array = 0;
++
++	if (frame_num_idx < FRAME_NUM_ARRAY_SIZE) {
++		if (((last_frame_num + 1) & DWC_HFNUM_MAX_FRNUM) !=
++		    curr_frame_number) {
++			frame_num_array[frame_num_idx] = curr_frame_number;
++			last_frame_num_array[frame_num_idx++] = last_frame_num;
++		}
++	} else if (!dumped_frame_num_array) {
++		int i;
++		DWC_PRINTF("Frame     Last Frame\n");
++		DWC_PRINTF("-----     ----------\n");
++		for (i = 0; i < FRAME_NUM_ARRAY_SIZE; i++) {
++			DWC_PRINTF("0x%04x    0x%04x\n",
++				   frame_num_array[i], last_frame_num_array[i]);
++		}
++		dumped_frame_num_array = 1;
++	}
++	last_frame_num = curr_frame_number;
++}
++#endif
++
++/**
++ * Handles the start-of-frame interrupt in host mode. Non-periodic
++ * transactions may be queued to the DWC_otg controller for the current
++ * (micro)frame. Periodic transactions may be queued to the controller for the
++ * next (micro)frame.
++ */
++int32_t dwc_otg_hcd_handle_sof_intr(dwc_otg_hcd_t * hcd)
++{
++	hfnum_data_t hfnum;
++	gintsts_data_t gintsts = { .d32 = 0 };
++	dwc_list_link_t *qh_entry;
++	dwc_otg_qh_t *qh;
++	dwc_otg_transaction_type_e tr_type;
++	int did_something = 0;
++	int32_t next_sched_frame = -1;
++
++	hfnum.d32 =
++	    DWC_READ_REG32(&hcd->core_if->host_if->host_global_regs->hfnum);
++
++#ifdef DEBUG_SOF
++	DWC_DEBUGPL(DBG_HCD, "--Start of Frame Interrupt--\n");
++#endif
++	hcd->frame_number = hfnum.b.frnum;
++
++#ifdef DEBUG
++	hcd->frrem_accum += hfnum.b.frrem;
++	hcd->frrem_samples++;
++#endif
++
++#ifdef DWC_TRACK_MISSED_SOFS
++	track_missed_sofs(hcd->frame_number);
++#endif
++	/* Determine whether any periodic QHs should be executed. */
++	qh_entry = DWC_LIST_FIRST(&hcd->periodic_sched_inactive);
++	while (qh_entry != &hcd->periodic_sched_inactive) {
++		qh = DWC_LIST_ENTRY(qh_entry, dwc_otg_qh_t, qh_list_entry);
++		qh_entry = qh_entry->next;
++		if (dwc_frame_num_le(qh->sched_frame, hcd->frame_number)) {
++
++			/*
++			 * Move QH to the ready list to be executed next
++			 * (micro)frame.
++			 */
++			DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready,
++					   &qh->qh_list_entry);
++
++			did_something = 1;
++		}
++		else
++		{
++			if(next_sched_frame < 0 || dwc_frame_num_le(qh->sched_frame, next_sched_frame))
++			{
++				next_sched_frame = qh->sched_frame;
++			}
++		}
++	}
++	if (fiq_enable)
++		hcd->fiq_state->next_sched_frame = next_sched_frame;
++
++	tr_type = dwc_otg_hcd_select_transactions(hcd);
++	if (tr_type != DWC_OTG_TRANSACTION_NONE) {
++		dwc_otg_hcd_queue_transactions(hcd, tr_type);
++		did_something = 1;
++	}
++
++	/* Clear interrupt - but do not trample on the FIQ sof */
++	if (!fiq_fsm_enable) {
++		gintsts.b.sofintr = 1;
++		DWC_WRITE_REG32(&hcd->core_if->core_global_regs->gintsts, gintsts.d32);
++	}
++	return 1;
++}
++
++/** Handles the Rx Status Queue Level Interrupt, which indicates that there is at
++ * least one packet in the Rx FIFO.  The packets are moved from the FIFO to
++ * memory if the DWC_otg controller is operating in Slave mode. */
++int32_t dwc_otg_hcd_handle_rx_status_q_level_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	host_grxsts_data_t grxsts;
++	dwc_hc_t *hc = NULL;
++
++	DWC_DEBUGPL(DBG_HCD, "--RxStsQ Level Interrupt--\n");
++
++	grxsts.d32 =
++	    DWC_READ_REG32(&dwc_otg_hcd->core_if->core_global_regs->grxstsp);
++
++	hc = dwc_otg_hcd->hc_ptr_array[grxsts.b.chnum];
++	if (!hc) {
++		DWC_ERROR("Unable to get corresponding channel\n");
++		return 0;
++	}
++
++	/* Packet Status */
++	DWC_DEBUGPL(DBG_HCDV, "    Ch num = %d\n", grxsts.b.chnum);
++	DWC_DEBUGPL(DBG_HCDV, "    Count = %d\n", grxsts.b.bcnt);
++	DWC_DEBUGPL(DBG_HCDV, "    DPID = %d, hc.dpid = %d\n", grxsts.b.dpid,
++		    hc->data_pid_start);
++	DWC_DEBUGPL(DBG_HCDV, "    PStatus = %d\n", grxsts.b.pktsts);
++
++	switch (grxsts.b.pktsts) {
++	case DWC_GRXSTS_PKTSTS_IN:
++		/* Read the data into the host buffer. */
++		if (grxsts.b.bcnt > 0) {
++			dwc_otg_read_packet(dwc_otg_hcd->core_if,
++					    hc->xfer_buff, grxsts.b.bcnt);
++
++			/* Update the HC fields for the next packet received. */
++			hc->xfer_count += grxsts.b.bcnt;
++			hc->xfer_buff += grxsts.b.bcnt;
++		}
++
++	case DWC_GRXSTS_PKTSTS_IN_XFER_COMP:
++	case DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR:
++	case DWC_GRXSTS_PKTSTS_CH_HALTED:
++		/* Handled in interrupt, just ignore data */
++		break;
++	default:
++		DWC_ERROR("RX_STS_Q Interrupt: Unknown status %d\n",
++			  grxsts.b.pktsts);
++		break;
++	}
++
++	return 1;
++}
++
++/** This interrupt occurs when the non-periodic Tx FIFO is half-empty. More
++ * data packets may be written to the FIFO for OUT transfers. More requests
++ * may be written to the non-periodic request queue for IN transfers. This
++ * interrupt is enabled only in Slave mode. */
++int32_t dwc_otg_hcd_handle_np_tx_fifo_empty_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	DWC_DEBUGPL(DBG_HCD, "--Non-Periodic TxFIFO Empty Interrupt--\n");
++	dwc_otg_hcd_queue_transactions(dwc_otg_hcd,
++				       DWC_OTG_TRANSACTION_NON_PERIODIC);
++	return 1;
++}
++
++/** This interrupt occurs when the periodic Tx FIFO is half-empty. More data
++ * packets may be written to the FIFO for OUT transfers. More requests may be
++ * written to the periodic request queue for IN transfers. This interrupt is
++ * enabled only in Slave mode. */
++int32_t dwc_otg_hcd_handle_perio_tx_fifo_empty_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	DWC_DEBUGPL(DBG_HCD, "--Periodic TxFIFO Empty Interrupt--\n");
++	dwc_otg_hcd_queue_transactions(dwc_otg_hcd,
++				       DWC_OTG_TRANSACTION_PERIODIC);
++	return 1;
++}
++
++/** There are multiple conditions that can cause a port interrupt. This function
++ * determines which interrupt conditions have occurred and handles them
++ * appropriately. */
++int32_t dwc_otg_hcd_handle_port_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	int retval = 0;
++	hprt0_data_t hprt0;
++	hprt0_data_t hprt0_modify;
++
++	hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0);
++	hprt0_modify.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0);
++
++	/* Clear appropriate bits in HPRT0 to clear the interrupt bit in
++	 * GINTSTS */
++
++	hprt0_modify.b.prtena = 0;
++	hprt0_modify.b.prtconndet = 0;
++	hprt0_modify.b.prtenchng = 0;
++	hprt0_modify.b.prtovrcurrchng = 0;
++
++	/* Port Connect Detected
++	 * Set flag and clear if detected */
++	if (dwc_otg_hcd->core_if->hibernation_suspend == 1) {
++		// Dont modify port status if we are in hibernation state
++		hprt0_modify.b.prtconndet = 1;
++		hprt0_modify.b.prtenchng = 1;
++		DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32);
++		hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0);
++		return retval;
++	}
++
++	if (hprt0.b.prtconndet) {
++		/** @todo - check if steps performed in 'else' block should be perfromed regardles adp */
++		if (dwc_otg_hcd->core_if->adp_enable &&
++				dwc_otg_hcd->core_if->adp.vbuson_timer_started == 1) {
++			DWC_PRINTF("PORT CONNECT DETECTED ----------------\n");
++			DWC_TIMER_CANCEL(dwc_otg_hcd->core_if->adp.vbuson_timer);
++			dwc_otg_hcd->core_if->adp.vbuson_timer_started = 0;
++			/* TODO - check if this is required, as
++			 * host initialization was already performed
++			 * after initial ADP probing
++			 */
++			/*dwc_otg_hcd->core_if->adp.vbuson_timer_started = 0;
++			dwc_otg_core_init(dwc_otg_hcd->core_if);
++			dwc_otg_enable_global_interrupts(dwc_otg_hcd->core_if);
++			cil_hcd_start(dwc_otg_hcd->core_if);*/
++		} else {
++
++			DWC_DEBUGPL(DBG_HCD, "--Port Interrupt HPRT0=0x%08x "
++				    "Port Connect Detected--\n", hprt0.d32);
++			dwc_otg_hcd->flags.b.port_connect_status_change = 1;
++			dwc_otg_hcd->flags.b.port_connect_status = 1;
++			hprt0_modify.b.prtconndet = 1;
++
++			/* B-Device has connected, Delete the connection timer. */
++			DWC_TIMER_CANCEL(dwc_otg_hcd->conn_timer);
++		}
++		/* The Hub driver asserts a reset when it sees port connect
++		 * status change flag */
++		retval |= 1;
++	}
++
++	/* Port Enable Changed
++	 * Clear if detected - Set internal flag if disabled */
++	if (hprt0.b.prtenchng) {
++		DWC_DEBUGPL(DBG_HCD, "  --Port Interrupt HPRT0=0x%08x "
++			    "Port Enable Changed--\n", hprt0.d32);
++		hprt0_modify.b.prtenchng = 1;
++		if (hprt0.b.prtena == 1) {
++			hfir_data_t hfir;
++			int do_reset = 0;
++			dwc_otg_core_params_t *params =
++			    dwc_otg_hcd->core_if->core_params;
++			dwc_otg_core_global_regs_t *global_regs =
++			    dwc_otg_hcd->core_if->core_global_regs;
++			dwc_otg_host_if_t *host_if =
++			    dwc_otg_hcd->core_if->host_if;
++
++			dwc_otg_hcd->flags.b.port_speed = hprt0.b.prtspd;
++			if (microframe_schedule)
++				init_hcd_usecs(dwc_otg_hcd);
++
++			/* Every time when port enables calculate
++			 * HFIR.FrInterval
++			 */
++			hfir.d32 = DWC_READ_REG32(&host_if->host_global_regs->hfir);
++			hfir.b.frint = calc_frame_interval(dwc_otg_hcd->core_if);
++			DWC_WRITE_REG32(&host_if->host_global_regs->hfir, hfir.d32);
++
++			/* Check if we need to adjust the PHY clock speed for
++			 * low power and adjust it */
++			if (params->host_support_fs_ls_low_power) {
++				gusbcfg_data_t usbcfg;
++
++				usbcfg.d32 =
++				    DWC_READ_REG32(&global_regs->gusbcfg);
++
++				if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_LOW_SPEED
++				    || hprt0.b.prtspd ==
++				    DWC_HPRT0_PRTSPD_FULL_SPEED) {
++					/*
++					 * Low power
++					 */
++					hcfg_data_t hcfg;
++					if (usbcfg.b.phylpwrclksel == 0) {
++						/* Set PHY low power clock select for FS/LS devices */
++						usbcfg.b.phylpwrclksel = 1;
++						DWC_WRITE_REG32
++						    (&global_regs->gusbcfg,
++						     usbcfg.d32);
++						do_reset = 1;
++					}
++
++					hcfg.d32 =
++					    DWC_READ_REG32
++					    (&host_if->host_global_regs->hcfg);
++
++					if (hprt0.b.prtspd ==
++					    DWC_HPRT0_PRTSPD_LOW_SPEED
++					    && params->host_ls_low_power_phy_clk
++					    ==
++					    DWC_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ)
++					{
++						/* 6 MHZ */
++						DWC_DEBUGPL(DBG_CIL,
++							    "FS_PHY programming HCFG to 6 MHz (Low Power)\n");
++						if (hcfg.b.fslspclksel !=
++						    DWC_HCFG_6_MHZ) {
++							hcfg.b.fslspclksel =
++							    DWC_HCFG_6_MHZ;
++							DWC_WRITE_REG32
++							    (&host_if->host_global_regs->hcfg,
++							     hcfg.d32);
++							do_reset = 1;
++						}
++					} else {
++						/* 48 MHZ */
++						DWC_DEBUGPL(DBG_CIL,
++							    "FS_PHY programming HCFG to 48 MHz ()\n");
++						if (hcfg.b.fslspclksel !=
++						    DWC_HCFG_48_MHZ) {
++							hcfg.b.fslspclksel =
++							    DWC_HCFG_48_MHZ;
++							DWC_WRITE_REG32
++							    (&host_if->host_global_regs->hcfg,
++							     hcfg.d32);
++							do_reset = 1;
++						}
++					}
++				} else {
++					/*
++					 * Not low power
++					 */
++					if (usbcfg.b.phylpwrclksel == 1) {
++						usbcfg.b.phylpwrclksel = 0;
++						DWC_WRITE_REG32
++						    (&global_regs->gusbcfg,
++						     usbcfg.d32);
++						do_reset = 1;
++					}
++				}
++
++				if (do_reset) {
++					DWC_TASK_SCHEDULE(dwc_otg_hcd->reset_tasklet);
++				}
++			}
++
++			if (!do_reset) {
++				/* Port has been enabled set the reset change flag */
++				dwc_otg_hcd->flags.b.port_reset_change = 1;
++			}
++		} else {
++			dwc_otg_hcd->flags.b.port_enable_change = 1;
++		}
++		retval |= 1;
++	}
++
++	/** Overcurrent Change Interrupt */
++	if (hprt0.b.prtovrcurrchng) {
++		DWC_DEBUGPL(DBG_HCD, "  --Port Interrupt HPRT0=0x%08x "
++			    "Port Overcurrent Changed--\n", hprt0.d32);
++		dwc_otg_hcd->flags.b.port_over_current_change = 1;
++		hprt0_modify.b.prtovrcurrchng = 1;
++		retval |= 1;
++	}
++
++	/* Clear Port Interrupts */
++	DWC_WRITE_REG32(dwc_otg_hcd->core_if->host_if->hprt0, hprt0_modify.d32);
++
++	return retval;
++}
++
++/** This interrupt indicates that one or more host channels has a pending
++ * interrupt. There are multiple conditions that can cause each host channel
++ * interrupt. This function determines which conditions have occurred for each
++ * host channel interrupt and handles them appropriately. */
++int32_t dwc_otg_hcd_handle_hc_intr(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	int i;
++	int retval = 0;
++	haint_data_t haint = { .d32 = 0 } ;
++
++	/* Clear appropriate bits in HCINTn to clear the interrupt bit in
++	 * GINTSTS */
++
++	if (!fiq_fsm_enable)
++		haint.d32 = dwc_otg_read_host_all_channels_intr(dwc_otg_hcd->core_if);
++
++	// Overwrite with saved interrupts from fiq handler
++	if(fiq_fsm_enable)
++	{
++		/* check the mask? */
++		local_fiq_disable();
++		fiq_fsm_spin_lock(&dwc_otg_hcd->fiq_state->lock);
++		haint.b2.chint |= ~(dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint);
++		dwc_otg_hcd->fiq_state->haintmsk_saved.b2.chint = ~0;
++		fiq_fsm_spin_unlock(&dwc_otg_hcd->fiq_state->lock);
++		local_fiq_enable();
++	}
++
++	for (i = 0; i < dwc_otg_hcd->core_if->core_params->host_channels; i++) {
++		if (haint.b2.chint & (1 << i)) {
++			retval |= dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd, i);
++		}
++	}
++
++	return retval;
++}
++
++/**
++ * Gets the actual length of a transfer after the transfer halts. _halt_status
++ * holds the reason for the halt.
++ *
++ * For IN transfers where halt_status is DWC_OTG_HC_XFER_COMPLETE,
++ * *short_read is set to 1 upon return if less than the requested
++ * number of bytes were transferred. Otherwise, *short_read is set to 0 upon
++ * return. short_read may also be NULL on entry, in which case it remains
++ * unchanged.
++ */
++static uint32_t get_actual_xfer_length(dwc_hc_t * hc,
++				       dwc_otg_hc_regs_t * hc_regs,
++				       dwc_otg_qtd_t * qtd,
++				       dwc_otg_halt_status_e halt_status,
++				       int *short_read)
++{
++	hctsiz_data_t hctsiz;
++	uint32_t length;
++
++	if (short_read != NULL) {
++		*short_read = 0;
++	}
++	hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++
++	if (halt_status == DWC_OTG_HC_XFER_COMPLETE) {
++		if (hc->ep_is_in) {
++			length = hc->xfer_len - hctsiz.b.xfersize;
++			if (short_read != NULL) {
++				*short_read = (hctsiz.b.xfersize != 0);
++			}
++		} else if (hc->qh->do_split) {
++				//length = split_out_xfersize[hc->hc_num];
++				length = qtd->ssplit_out_xfer_count;
++		} else {
++			length = hc->xfer_len;
++		}
++	} else {
++		/*
++		 * Must use the hctsiz.pktcnt field to determine how much data
++		 * has been transferred. This field reflects the number of
++		 * packets that have been transferred via the USB. This is
++		 * always an integral number of packets if the transfer was
++		 * halted before its normal completion. (Can't use the
++		 * hctsiz.xfersize field because that reflects the number of
++		 * bytes transferred via the AHB, not the USB).
++		 */
++		length =
++		    (hc->start_pkt_count - hctsiz.b.pktcnt) * hc->max_packet;
++	}
++
++	return length;
++}
++
++/**
++ * Updates the state of the URB after a Transfer Complete interrupt on the
++ * host channel. Updates the actual_length field of the URB based on the
++ * number of bytes transferred via the host channel. Sets the URB status
++ * if the data transfer is finished.
++ *
++ * @return 1 if the data transfer specified by the URB is completely finished,
++ * 0 otherwise.
++ */
++static int update_urb_state_xfer_comp(dwc_hc_t * hc,
++				      dwc_otg_hc_regs_t * hc_regs,
++				      dwc_otg_hcd_urb_t * urb,
++				      dwc_otg_qtd_t * qtd)
++{
++	int xfer_done = 0;
++	int short_read = 0;
++
++	int xfer_length;
++
++	xfer_length = get_actual_xfer_length(hc, hc_regs, qtd,
++					     DWC_OTG_HC_XFER_COMPLETE,
++					     &short_read);
++
++	if (urb->actual_length + xfer_length > urb->length) {
++		printk_once(KERN_DEBUG "dwc_otg: DEVICE:%03d : %s:%d:trimming xfer length\n",
++			hc->dev_addr, __func__, __LINE__);
++		xfer_length = urb->length - urb->actual_length;
++	}
++
++	/* non DWORD-aligned buffer case handling. */
++	if (hc->align_buff && xfer_length && hc->ep_is_in) {
++		dwc_memcpy(urb->buf + urb->actual_length, hc->qh->dw_align_buf,
++			   xfer_length);
++	}
++
++	urb->actual_length += xfer_length;
++
++	if (xfer_length && (hc->ep_type == DWC_OTG_EP_TYPE_BULK) &&
++	    (urb->flags & URB_SEND_ZERO_PACKET)
++	    && (urb->actual_length == urb->length)
++	    && !(urb->length % hc->max_packet)) {
++		xfer_done = 0;
++	} else if (short_read || urb->actual_length >= urb->length) {
++		xfer_done = 1;
++		urb->status = 0;
++	}
++
++#ifdef DEBUG
++	{
++		hctsiz_data_t hctsiz;
++		hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++		DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n",
++			    __func__, (hc->ep_is_in ? "IN" : "OUT"),
++			    hc->hc_num);
++		DWC_DEBUGPL(DBG_HCDV, "  hc->xfer_len %d\n", hc->xfer_len);
++		DWC_DEBUGPL(DBG_HCDV, "  hctsiz.xfersize %d\n",
++			    hctsiz.b.xfersize);
++		DWC_DEBUGPL(DBG_HCDV, "  urb->transfer_buffer_length %d\n",
++			    urb->length);
++		DWC_DEBUGPL(DBG_HCDV, "  urb->actual_length %d\n",
++			    urb->actual_length);
++		DWC_DEBUGPL(DBG_HCDV, "  short_read %d, xfer_done %d\n",
++			    short_read, xfer_done);
++	}
++#endif
++
++	return xfer_done;
++}
++
++/*
++ * Save the starting data toggle for the next transfer. The data toggle is
++ * saved in the QH for non-control transfers and it's saved in the QTD for
++ * control transfers.
++ */
++void dwc_otg_hcd_save_data_toggle(dwc_hc_t * hc,
++			     dwc_otg_hc_regs_t * hc_regs, dwc_otg_qtd_t * qtd)
++{
++	hctsiz_data_t hctsiz;
++	hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++
++	if (hc->ep_type != DWC_OTG_EP_TYPE_CONTROL) {
++		dwc_otg_qh_t *qh = hc->qh;
++		if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) {
++			qh->data_toggle = DWC_OTG_HC_PID_DATA0;
++		} else {
++			qh->data_toggle = DWC_OTG_HC_PID_DATA1;
++		}
++	} else {
++		if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) {
++			qtd->data_toggle = DWC_OTG_HC_PID_DATA0;
++		} else {
++			qtd->data_toggle = DWC_OTG_HC_PID_DATA1;
++		}
++	}
++}
++
++/**
++ * Updates the state of an Isochronous URB when the transfer is stopped for
++ * any reason. The fields of the current entry in the frame descriptor array
++ * are set based on the transfer state and the input _halt_status. Completes
++ * the Isochronous URB if all the URB frames have been completed.
++ *
++ * @return DWC_OTG_HC_XFER_COMPLETE if there are more frames remaining to be
++ * transferred in the URB. Otherwise return DWC_OTG_HC_XFER_URB_COMPLETE.
++ */
++static dwc_otg_halt_status_e
++update_isoc_urb_state(dwc_otg_hcd_t * hcd,
++		      dwc_hc_t * hc,
++		      dwc_otg_hc_regs_t * hc_regs,
++		      dwc_otg_qtd_t * qtd, dwc_otg_halt_status_e halt_status)
++{
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++	dwc_otg_halt_status_e ret_val = halt_status;
++	struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++
++	frame_desc = &urb->iso_descs[qtd->isoc_frame_index];
++	switch (halt_status) {
++	case DWC_OTG_HC_XFER_COMPLETE:
++		frame_desc->status = 0;
++		frame_desc->actual_length =
++		    get_actual_xfer_length(hc, hc_regs, qtd, halt_status, NULL);
++
++		/* non DWORD-aligned buffer case handling. */
++		if (hc->align_buff && frame_desc->actual_length && hc->ep_is_in) {
++			dwc_memcpy(urb->buf + frame_desc->offset + qtd->isoc_split_offset,
++				   hc->qh->dw_align_buf, frame_desc->actual_length);
++		}
++
++		break;
++	case DWC_OTG_HC_XFER_FRAME_OVERRUN:
++		urb->error_count++;
++		if (hc->ep_is_in) {
++			frame_desc->status = -DWC_E_NO_STREAM_RES;
++		} else {
++			frame_desc->status = -DWC_E_COMMUNICATION;
++		}
++		frame_desc->actual_length = 0;
++		break;
++	case DWC_OTG_HC_XFER_BABBLE_ERR:
++		urb->error_count++;
++		frame_desc->status = -DWC_E_OVERFLOW;
++		/* Don't need to update actual_length in this case. */
++		break;
++	case DWC_OTG_HC_XFER_XACT_ERR:
++		urb->error_count++;
++		frame_desc->status = -DWC_E_PROTOCOL;
++		frame_desc->actual_length =
++		    get_actual_xfer_length(hc, hc_regs, qtd, halt_status, NULL);
++
++		/* non DWORD-aligned buffer case handling. */
++		if (hc->align_buff && frame_desc->actual_length && hc->ep_is_in) {
++			dwc_memcpy(urb->buf + frame_desc->offset + qtd->isoc_split_offset,
++				   hc->qh->dw_align_buf, frame_desc->actual_length);
++		}
++		/* Skip whole frame */
++		if (hc->qh->do_split && (hc->ep_type == DWC_OTG_EP_TYPE_ISOC) &&
++		    hc->ep_is_in && hcd->core_if->dma_enable) {
++			qtd->complete_split = 0;
++			qtd->isoc_split_offset = 0;
++		}
++
++		break;
++	default:
++		DWC_ASSERT(1, "Unhandled _halt_status (%d)\n", halt_status);
++		break;
++	}
++	if (++qtd->isoc_frame_index == urb->packet_count) {
++		/*
++		 * urb->status is not used for isoc transfers.
++		 * The individual frame_desc statuses are used instead.
++		 */
++		hcd->fops->complete(hcd, urb->priv, urb, 0);
++		ret_val = DWC_OTG_HC_XFER_URB_COMPLETE;
++	} else {
++		ret_val = DWC_OTG_HC_XFER_COMPLETE;
++	}
++	return ret_val;
++}
++
++/**
++ * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic
++ * QHs, removes the QH from the active non-periodic schedule. If any QTDs are
++ * still linked to the QH, the QH is added to the end of the inactive
++ * non-periodic schedule. For periodic QHs, removes the QH from the periodic
++ * schedule if no more QTDs are linked to the QH.
++ */
++static void deactivate_qh(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, int free_qtd)
++{
++	int continue_split = 0;
++	dwc_otg_qtd_t *qtd;
++
++	DWC_DEBUGPL(DBG_HCDV, "  %s(%p,%p,%d)\n", __func__, hcd, qh, free_qtd);
++
++	qtd = DWC_CIRCLEQ_FIRST(&qh->qtd_list);
++
++	if (qtd->complete_split) {
++		continue_split = 1;
++	} else if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_MID ||
++		   qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_END) {
++		continue_split = 1;
++	}
++
++	if (free_qtd) {
++		dwc_otg_hcd_qtd_remove_and_free(hcd, qtd, qh);
++		continue_split = 0;
++	}
++
++	qh->channel = NULL;
++	dwc_otg_hcd_qh_deactivate(hcd, qh, continue_split);
++}
++
++/**
++ * Releases a host channel for use by other transfers. Attempts to select and
++ * queue more transactions since at least one host channel is available.
++ *
++ * @param hcd The HCD state structure.
++ * @param hc The host channel to release.
++ * @param qtd The QTD associated with the host channel. This QTD may be freed
++ * if the transfer is complete or an error has occurred.
++ * @param halt_status Reason the channel is being released. This status
++ * determines the actions taken by this function.
++ */
++static void release_channel(dwc_otg_hcd_t * hcd,
++			    dwc_hc_t * hc,
++			    dwc_otg_qtd_t * qtd,
++			    dwc_otg_halt_status_e halt_status)
++{
++	dwc_otg_transaction_type_e tr_type;
++	int free_qtd;
++
++	int hog_port = 0;
++
++	DWC_DEBUGPL(DBG_HCDV, "  %s: channel %d, halt_status %d, xfer_len %d\n",
++		    __func__, hc->hc_num, halt_status, hc->xfer_len);
++
++	if(fiq_fsm_enable && hc->do_split) {
++		if(!hc->ep_is_in && hc->ep_type == UE_ISOCHRONOUS) {
++			if(hc->xact_pos == DWC_HCSPLIT_XACTPOS_MID ||
++					hc->xact_pos == DWC_HCSPLIT_XACTPOS_BEGIN) {
++				hog_port = 0;
++			}
++		}
++	}
++
++	switch (halt_status) {
++	case DWC_OTG_HC_XFER_URB_COMPLETE:
++		free_qtd = 1;
++		break;
++	case DWC_OTG_HC_XFER_AHB_ERR:
++	case DWC_OTG_HC_XFER_STALL:
++	case DWC_OTG_HC_XFER_BABBLE_ERR:
++		free_qtd = 1;
++		break;
++	case DWC_OTG_HC_XFER_XACT_ERR:
++		if (qtd->error_count >= 3) {
++			DWC_DEBUGPL(DBG_HCDV,
++				    "  Complete URB with transaction error\n");
++			free_qtd = 1;
++			qtd->urb->status = -DWC_E_PROTOCOL;
++			hcd->fops->complete(hcd, qtd->urb->priv,
++					    qtd->urb, -DWC_E_PROTOCOL);
++		} else {
++			free_qtd = 0;
++		}
++		break;
++	case DWC_OTG_HC_XFER_URB_DEQUEUE:
++		/*
++		 * The QTD has already been removed and the QH has been
++		 * deactivated. Don't want to do anything except release the
++		 * host channel and try to queue more transfers.
++		 */
++		goto cleanup;
++	case DWC_OTG_HC_XFER_NO_HALT_STATUS:
++		free_qtd = 0;
++		break;
++	case DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE:
++		DWC_DEBUGPL(DBG_HCDV,
++			"  Complete URB with I/O error\n");
++		free_qtd = 1;
++		qtd->urb->status = -DWC_E_IO;
++		hcd->fops->complete(hcd, qtd->urb->priv,
++			qtd->urb, -DWC_E_IO);
++		break;
++	default:
++		free_qtd = 0;
++		break;
++	}
++
++	deactivate_qh(hcd, hc->qh, free_qtd);
++
++cleanup:
++	/*
++	 * Release the host channel for use by other transfers. The cleanup
++	 * function clears the channel interrupt enables and conditions, so
++	 * there's no need to clear the Channel Halted interrupt separately.
++	 */
++	if (fiq_fsm_enable && hcd->fiq_state->channel[hc->hc_num].fsm != FIQ_PASSTHROUGH)
++		dwc_otg_cleanup_fiq_channel(hcd, hc->hc_num);
++	dwc_otg_hc_cleanup(hcd->core_if, hc);
++	DWC_CIRCLEQ_INSERT_TAIL(&hcd->free_hc_list, hc, hc_list_entry);
++
++	if (!microframe_schedule) {
++		switch (hc->ep_type) {
++		case DWC_OTG_EP_TYPE_CONTROL:
++		case DWC_OTG_EP_TYPE_BULK:
++			hcd->non_periodic_channels--;
++			break;
++
++		default:
++			/*
++			 * Don't release reservations for periodic channels here.
++			 * That's done when a periodic transfer is descheduled (i.e.
++			 * when the QH is removed from the periodic schedule).
++			 */
++			break;
++		}
++	} else {
++		hcd->available_host_channels++;
++		fiq_print(FIQDBG_INT, hcd->fiq_state, "AHC = %d ", hcd->available_host_channels);
++	}
++
++	/* Try to queue more transfers now that there's a free channel. */
++	tr_type = dwc_otg_hcd_select_transactions(hcd);
++	if (tr_type != DWC_OTG_TRANSACTION_NONE) {
++		dwc_otg_hcd_queue_transactions(hcd, tr_type);
++	}
++}
++
++/**
++ * Halts a host channel. If the channel cannot be halted immediately because
++ * the request queue is full, this function ensures that the FIFO empty
++ * interrupt for the appropriate queue is enabled so that the halt request can
++ * be queued when there is space in the request queue.
++ *
++ * This function may also be called in DMA mode. In that case, the channel is
++ * simply released since the core always halts the channel automatically in
++ * DMA mode.
++ */
++static void halt_channel(dwc_otg_hcd_t * hcd,
++			 dwc_hc_t * hc,
++			 dwc_otg_qtd_t * qtd, dwc_otg_halt_status_e halt_status)
++{
++	if (hcd->core_if->dma_enable) {
++		release_channel(hcd, hc, qtd, halt_status);
++		return;
++	}
++
++	/* Slave mode processing... */
++	dwc_otg_hc_halt(hcd->core_if, hc, halt_status);
++
++	if (hc->halt_on_queue) {
++		gintmsk_data_t gintmsk = {.d32 = 0 };
++		dwc_otg_core_global_regs_t *global_regs;
++		global_regs = hcd->core_if->core_global_regs;
++
++		if (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL ||
++		    hc->ep_type == DWC_OTG_EP_TYPE_BULK) {
++			/*
++			 * Make sure the Non-periodic Tx FIFO empty interrupt
++			 * is enabled so that the non-periodic schedule will
++			 * be processed.
++			 */
++			gintmsk.b.nptxfempty = 1;
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32);
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32);
++			}
++		} else {
++			/*
++			 * Move the QH from the periodic queued schedule to
++			 * the periodic assigned schedule. This allows the
++			 * halt to be queued when the periodic schedule is
++			 * processed.
++			 */
++			DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_assigned,
++					   &hc->qh->qh_list_entry);
++
++			/*
++			 * Make sure the Periodic Tx FIFO Empty interrupt is
++			 * enabled so that the periodic schedule will be
++			 * processed.
++			 */
++			gintmsk.b.ptxfempty = 1;
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32);
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmsk.d32);
++			}
++		}
++	}
++}
++
++/**
++ * Performs common cleanup for non-periodic transfers after a Transfer
++ * Complete interrupt. This function should be called after any endpoint type
++ * specific handling is finished to release the host channel.
++ */
++static void complete_non_periodic_xfer(dwc_otg_hcd_t * hcd,
++				       dwc_hc_t * hc,
++				       dwc_otg_hc_regs_t * hc_regs,
++				       dwc_otg_qtd_t * qtd,
++				       dwc_otg_halt_status_e halt_status)
++{
++	hcint_data_t hcint;
++
++	qtd->error_count = 0;
++
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++	if (hcint.b.nyet) {
++		/*
++		 * Got a NYET on the last transaction of the transfer. This
++		 * means that the endpoint should be in the PING state at the
++		 * beginning of the next transfer.
++		 */
++		hc->qh->ping_state = 1;
++		clear_hc_int(hc_regs, nyet);
++	}
++
++	/*
++	 * Always halt and release the host channel to make it available for
++	 * more transfers. There may still be more phases for a control
++	 * transfer or more data packets for a bulk transfer at this point,
++	 * but the host channel is still halted. A channel will be reassigned
++	 * to the transfer when the non-periodic schedule is processed after
++	 * the channel is released. This allows transactions to be queued
++	 * properly via dwc_otg_hcd_queue_transactions, which also enables the
++	 * Tx FIFO Empty interrupt if necessary.
++	 */
++	if (hc->ep_is_in) {
++		/*
++		 * IN transfers in Slave mode require an explicit disable to
++		 * halt the channel. (In DMA mode, this call simply releases
++		 * the channel.)
++		 */
++		halt_channel(hcd, hc, qtd, halt_status);
++	} else {
++		/*
++		 * The channel is automatically disabled by the core for OUT
++		 * transfers in Slave mode.
++		 */
++		release_channel(hcd, hc, qtd, halt_status);
++	}
++}
++
++/**
++ * Performs common cleanup for periodic transfers after a Transfer Complete
++ * interrupt. This function should be called after any endpoint type specific
++ * handling is finished to release the host channel.
++ */
++static void complete_periodic_xfer(dwc_otg_hcd_t * hcd,
++				   dwc_hc_t * hc,
++				   dwc_otg_hc_regs_t * hc_regs,
++				   dwc_otg_qtd_t * qtd,
++				   dwc_otg_halt_status_e halt_status)
++{
++	hctsiz_data_t hctsiz;
++	qtd->error_count = 0;
++
++	hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++	if (!hc->ep_is_in || hctsiz.b.pktcnt == 0) {
++		/* Core halts channel in these cases. */
++		release_channel(hcd, hc, qtd, halt_status);
++	} else {
++		/* Flush any outstanding requests from the Tx queue. */
++		halt_channel(hcd, hc, qtd, halt_status);
++	}
++}
++
++static int32_t handle_xfercomp_isoc_split_in(dwc_otg_hcd_t * hcd,
++					     dwc_hc_t * hc,
++					     dwc_otg_hc_regs_t * hc_regs,
++					     dwc_otg_qtd_t * qtd)
++{
++	uint32_t len;
++	struct dwc_otg_hcd_iso_packet_desc *frame_desc;
++	frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++
++	len = get_actual_xfer_length(hc, hc_regs, qtd,
++				     DWC_OTG_HC_XFER_COMPLETE, NULL);
++
++	if (!len) {
++		qtd->complete_split = 0;
++		qtd->isoc_split_offset = 0;
++		return 0;
++	}
++	frame_desc->actual_length += len;
++
++	if (hc->align_buff && len)
++		dwc_memcpy(qtd->urb->buf + frame_desc->offset +
++			   qtd->isoc_split_offset, hc->qh->dw_align_buf, len);
++	qtd->isoc_split_offset += len;
++
++	if (frame_desc->length == frame_desc->actual_length) {
++		frame_desc->status = 0;
++		qtd->isoc_frame_index++;
++		qtd->complete_split = 0;
++		qtd->isoc_split_offset = 0;
++	}
++
++	if (qtd->isoc_frame_index == qtd->urb->packet_count) {
++		hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++		release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++	} else {
++		release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++	}
++
++	return 1;		/* Indicates that channel released */
++}
++
++/**
++ * Handles a host channel Transfer Complete interrupt. This handler may be
++ * called in either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_xfercomp_intr(dwc_otg_hcd_t * hcd,
++				       dwc_hc_t * hc,
++				       dwc_otg_hc_regs_t * hc_regs,
++				       dwc_otg_qtd_t * qtd)
++{
++	int urb_xfer_done;
++	dwc_otg_halt_status_e halt_status = DWC_OTG_HC_XFER_COMPLETE;
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++	int pipe_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info);
++
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "Transfer Complete--\n", hc->hc_num);
++
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, halt_status);
++		if (pipe_type == UE_ISOCHRONOUS) {
++			/* Do not disable the interrupt, just clear it */
++			clear_hc_int(hc_regs, xfercomp);
++			return 1;
++		}
++		goto handle_xfercomp_done;
++	}
++
++	/*
++	 * Handle xfer complete on CSPLIT.
++	 */
++
++	if (hc->qh->do_split) {
++		if ((hc->ep_type == DWC_OTG_EP_TYPE_ISOC) && hc->ep_is_in
++		    && hcd->core_if->dma_enable) {
++			if (qtd->complete_split
++			    && handle_xfercomp_isoc_split_in(hcd, hc, hc_regs,
++							     qtd))
++				goto handle_xfercomp_done;
++		} else {
++			qtd->complete_split = 0;
++		}
++	}
++
++	/* Update the QTD and URB states. */
++	switch (pipe_type) {
++	case UE_CONTROL:
++		switch (qtd->control_phase) {
++		case DWC_OTG_CONTROL_SETUP:
++			if (urb->length > 0) {
++				qtd->control_phase = DWC_OTG_CONTROL_DATA;
++			} else {
++				qtd->control_phase = DWC_OTG_CONTROL_STATUS;
++			}
++			DWC_DEBUGPL(DBG_HCDV,
++				    "  Control setup transaction done\n");
++			halt_status = DWC_OTG_HC_XFER_COMPLETE;
++			break;
++		case DWC_OTG_CONTROL_DATA:{
++				urb_xfer_done =
++				    update_urb_state_xfer_comp(hc, hc_regs, urb,
++							       qtd);
++				if (urb_xfer_done) {
++					qtd->control_phase =
++					    DWC_OTG_CONTROL_STATUS;
++					DWC_DEBUGPL(DBG_HCDV,
++						    "  Control data transfer done\n");
++				} else {
++					dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++				}
++				halt_status = DWC_OTG_HC_XFER_COMPLETE;
++				break;
++			}
++		case DWC_OTG_CONTROL_STATUS:
++			DWC_DEBUGPL(DBG_HCDV, "  Control transfer complete\n");
++			if (urb->status == -DWC_E_IN_PROGRESS) {
++				urb->status = 0;
++			}
++			hcd->fops->complete(hcd, urb->priv, urb, urb->status);
++			halt_status = DWC_OTG_HC_XFER_URB_COMPLETE;
++			break;
++		}
++
++		complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status);
++		break;
++	case UE_BULK:
++		DWC_DEBUGPL(DBG_HCDV, "  Bulk transfer complete\n");
++		urb_xfer_done =
++		    update_urb_state_xfer_comp(hc, hc_regs, urb, qtd);
++		if (urb_xfer_done) {
++			hcd->fops->complete(hcd, urb->priv, urb, urb->status);
++			halt_status = DWC_OTG_HC_XFER_URB_COMPLETE;
++		} else {
++			halt_status = DWC_OTG_HC_XFER_COMPLETE;
++		}
++
++		dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++		complete_non_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status);
++		break;
++	case UE_INTERRUPT:
++		DWC_DEBUGPL(DBG_HCDV, "  Interrupt transfer complete\n");
++		urb_xfer_done =
++			update_urb_state_xfer_comp(hc, hc_regs, urb, qtd);
++
++		/*
++		 * Interrupt URB is done on the first transfer complete
++		 * interrupt.
++		 */
++		if (urb_xfer_done) {
++				hcd->fops->complete(hcd, urb->priv, urb, urb->status);
++				halt_status = DWC_OTG_HC_XFER_URB_COMPLETE;
++		} else {
++				halt_status = DWC_OTG_HC_XFER_COMPLETE;
++		}
++
++		dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++		complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status);
++		break;
++	case UE_ISOCHRONOUS:
++		DWC_DEBUGPL(DBG_HCDV, "  Isochronous transfer complete\n");
++		if (qtd->isoc_split_pos == DWC_HCSPLIT_XACTPOS_ALL) {
++			halt_status =
++			    update_isoc_urb_state(hcd, hc, hc_regs, qtd,
++						  DWC_OTG_HC_XFER_COMPLETE);
++		}
++		complete_periodic_xfer(hcd, hc, hc_regs, qtd, halt_status);
++		break;
++	}
++
++handle_xfercomp_done:
++	disable_hc_int(hc_regs, xfercompl);
++
++	return 1;
++}
++
++/**
++ * Handles a host channel STALL interrupt. This handler may be called in
++ * either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_stall_intr(dwc_otg_hcd_t * hcd,
++				    dwc_hc_t * hc,
++				    dwc_otg_hc_regs_t * hc_regs,
++				    dwc_otg_qtd_t * qtd)
++{
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++	int pipe_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info);
++
++	DWC_DEBUGPL(DBG_HCD, "--Host Channel %d Interrupt: "
++		    "STALL Received--\n", hc->hc_num);
++
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs, DWC_OTG_HC_XFER_STALL);
++		goto handle_stall_done;
++	}
++
++	if (pipe_type == UE_CONTROL) {
++		hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_PIPE);
++	}
++
++	if (pipe_type == UE_BULK || pipe_type == UE_INTERRUPT) {
++		hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_PIPE);
++		/*
++		 * USB protocol requires resetting the data toggle for bulk
++		 * and interrupt endpoints when a CLEAR_FEATURE(ENDPOINT_HALT)
++		 * setup command is issued to the endpoint. Anticipate the
++		 * CLEAR_FEATURE command since a STALL has occurred and reset
++		 * the data toggle now.
++		 */
++		hc->qh->data_toggle = 0;
++	}
++
++	halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_STALL);
++
++handle_stall_done:
++	disable_hc_int(hc_regs, stall);
++
++	return 1;
++}
++
++/*
++ * Updates the state of the URB when a transfer has been stopped due to an
++ * abnormal condition before the transfer completes. Modifies the
++ * actual_length field of the URB to reflect the number of bytes that have
++ * actually been transferred via the host channel.
++ */
++static void update_urb_state_xfer_intr(dwc_hc_t * hc,
++				       dwc_otg_hc_regs_t * hc_regs,
++				       dwc_otg_hcd_urb_t * urb,
++				       dwc_otg_qtd_t * qtd,
++				       dwc_otg_halt_status_e halt_status)
++{
++	uint32_t bytes_transferred = get_actual_xfer_length(hc, hc_regs, qtd,
++							    halt_status, NULL);
++
++	if (urb->actual_length + bytes_transferred > urb->length) {
++		printk_once(KERN_DEBUG "dwc_otg: DEVICE:%03d : %s:%d:trimming xfer length\n",
++			hc->dev_addr, __func__, __LINE__);
++		bytes_transferred = urb->length - urb->actual_length;
++	}
++
++	/* non DWORD-aligned buffer case handling. */
++	if (hc->align_buff && bytes_transferred && hc->ep_is_in) {
++		dwc_memcpy(urb->buf + urb->actual_length, hc->qh->dw_align_buf,
++			   bytes_transferred);
++	}
++
++	urb->actual_length += bytes_transferred;
++
++#ifdef DEBUG
++	{
++		hctsiz_data_t hctsiz;
++		hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++		DWC_DEBUGPL(DBG_HCDV, "DWC_otg: %s: %s, channel %d\n",
++			    __func__, (hc->ep_is_in ? "IN" : "OUT"),
++			    hc->hc_num);
++		DWC_DEBUGPL(DBG_HCDV, "  hc->start_pkt_count %d\n",
++			    hc->start_pkt_count);
++		DWC_DEBUGPL(DBG_HCDV, "  hctsiz.pktcnt %d\n", hctsiz.b.pktcnt);
++		DWC_DEBUGPL(DBG_HCDV, "  hc->max_packet %d\n", hc->max_packet);
++		DWC_DEBUGPL(DBG_HCDV, "  bytes_transferred %d\n",
++			    bytes_transferred);
++		DWC_DEBUGPL(DBG_HCDV, "  urb->actual_length %d\n",
++			    urb->actual_length);
++		DWC_DEBUGPL(DBG_HCDV, "  urb->transfer_buffer_length %d\n",
++			    urb->length);
++	}
++#endif
++}
++
++/**
++ * Handles a host channel NAK interrupt. This handler may be called in either
++ * DMA mode or Slave mode.
++ */
++static int32_t handle_hc_nak_intr(dwc_otg_hcd_t * hcd,
++				  dwc_hc_t * hc,
++				  dwc_otg_hc_regs_t * hc_regs,
++				  dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "NAK Received--\n", hc->hc_num);
++
++	/*
++	 * When we get bulk NAKs then remember this so we holdoff on this qh until
++	 * the beginning of the next frame
++	 */
++	switch(dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) {
++		case UE_BULK:
++		case UE_CONTROL:
++		if (nak_holdoff && qtd->qh->do_split)
++			hc->qh->nak_frame = dwc_otg_hcd_get_frame_number(hcd);
++	}
++
++	/*
++	 * Handle NAK for IN/OUT SSPLIT/CSPLIT transfers, bulk, control, and
++	 * interrupt.  Re-start the SSPLIT transfer.
++	 */
++	if (hc->do_split) {
++		if (hc->complete_split) {
++			qtd->error_count = 0;
++		}
++		qtd->complete_split = 0;
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK);
++		goto handle_nak_done;
++	}
++
++	switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) {
++	case UE_CONTROL:
++	case UE_BULK:
++		if (hcd->core_if->dma_enable && hc->ep_is_in) {
++			/*
++			 * NAK interrupts are enabled on bulk/control IN
++			 * transfers in DMA mode for the sole purpose of
++			 * resetting the error count after a transaction error
++			 * occurs. The core will continue transferring data.
++			 * Disable other interrupts unmasked for the same
++			 * reason.
++			 */
++			disable_hc_int(hc_regs, datatglerr);
++			disable_hc_int(hc_regs, ack);
++			qtd->error_count = 0;
++			goto handle_nak_done;
++		}
++
++		/*
++		 * NAK interrupts normally occur during OUT transfers in DMA
++		 * or Slave mode. For IN transfers, more requests will be
++		 * queued as request queue space is available.
++		 */
++		qtd->error_count = 0;
++
++		if (!hc->qh->ping_state) {
++			update_urb_state_xfer_intr(hc, hc_regs,
++						   qtd->urb, qtd,
++						   DWC_OTG_HC_XFER_NAK);
++			dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++
++			if (hc->speed == DWC_OTG_EP_SPEED_HIGH)
++				hc->qh->ping_state = 1;
++		}
++
++		/*
++		 * Halt the channel so the transfer can be re-started from
++		 * the appropriate point or the PING protocol will
++		 * start/continue.
++		 */
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK);
++		break;
++	case UE_INTERRUPT:
++		qtd->error_count = 0;
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NAK);
++		break;
++	case UE_ISOCHRONOUS:
++		/* Should never get called for isochronous transfers. */
++		DWC_ASSERT(1, "NACK interrupt for ISOC transfer\n");
++		break;
++	}
++
++handle_nak_done:
++	disable_hc_int(hc_regs, nak);
++
++	return 1;
++}
++
++/**
++ * Handles a host channel ACK interrupt. This interrupt is enabled when
++ * performing the PING protocol in Slave mode, when errors occur during
++ * either Slave mode or DMA mode, and during Start Split transactions.
++ */
++static int32_t handle_hc_ack_intr(dwc_otg_hcd_t * hcd,
++				  dwc_hc_t * hc,
++				  dwc_otg_hc_regs_t * hc_regs,
++				  dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "ACK Received--\n", hc->hc_num);
++
++	if (hc->do_split) {
++		/*
++		 * Handle ACK on SSPLIT.
++		 * ACK should not occur in CSPLIT.
++		 */
++		if (!hc->ep_is_in && hc->data_pid_start != DWC_OTG_HC_PID_SETUP) {
++			qtd->ssplit_out_xfer_count = hc->xfer_len;
++		}
++		if (!(hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in)) {
++			/* Don't need complete for isochronous out transfers. */
++			qtd->complete_split = 1;
++		}
++
++		/* ISOC OUT */
++		if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) {
++			switch (hc->xact_pos) {
++			case DWC_HCSPLIT_XACTPOS_ALL:
++				break;
++			case DWC_HCSPLIT_XACTPOS_END:
++				qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL;
++				qtd->isoc_split_offset = 0;
++				break;
++			case DWC_HCSPLIT_XACTPOS_BEGIN:
++			case DWC_HCSPLIT_XACTPOS_MID:
++				/*
++				 * For BEGIN or MID, calculate the length for
++				 * the next microframe to determine the correct
++				 * SSPLIT token, either MID or END.
++				 */
++				{
++					struct dwc_otg_hcd_iso_packet_desc
++					*frame_desc;
++
++					frame_desc =
++					    &qtd->urb->
++					    iso_descs[qtd->isoc_frame_index];
++					qtd->isoc_split_offset += 188;
++
++					if ((frame_desc->length -
++					     qtd->isoc_split_offset) <= 188) {
++						qtd->isoc_split_pos =
++						    DWC_HCSPLIT_XACTPOS_END;
++					} else {
++						qtd->isoc_split_pos =
++						    DWC_HCSPLIT_XACTPOS_MID;
++					}
++
++				}
++				break;
++			}
++		} else {
++			halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK);
++		}
++	} else {
++		/*
++		 * An unmasked ACK on a non-split DMA transaction is
++		 * for the sole purpose of resetting error counts. Disable other
++		 * interrupts unmasked for the same reason.
++		 */
++		if(hcd->core_if->dma_enable) {
++			disable_hc_int(hc_regs, datatglerr);
++			disable_hc_int(hc_regs, nak);
++		}
++		qtd->error_count = 0;
++
++		if (hc->qh->ping_state) {
++			hc->qh->ping_state = 0;
++			/*
++			 * Halt the channel so the transfer can be re-started
++			 * from the appropriate point. This only happens in
++			 * Slave mode. In DMA mode, the ping_state is cleared
++			 * when the transfer is started because the core
++			 * automatically executes the PING, then the transfer.
++			 */
++			halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_ACK);
++		}
++	}
++
++	/*
++	 * If the ACK occurred when _not_ in the PING state, let the channel
++	 * continue transferring data after clearing the error count.
++	 */
++
++	disable_hc_int(hc_regs, ack);
++
++	return 1;
++}
++
++/**
++ * Handles a host channel NYET interrupt. This interrupt should only occur on
++ * Bulk and Control OUT endpoints and for complete split transactions. If a
++ * NYET occurs at the same time as a Transfer Complete interrupt, it is
++ * handled in the xfercomp interrupt handler, not here. This handler may be
++ * called in either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_nyet_intr(dwc_otg_hcd_t * hcd,
++				   dwc_hc_t * hc,
++				   dwc_otg_hc_regs_t * hc_regs,
++				   dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "NYET Received--\n", hc->hc_num);
++
++	/*
++	 * NYET on CSPLIT
++	 * re-do the CSPLIT immediately on non-periodic
++	 */
++	if (hc->do_split && hc->complete_split) {
++		if (hc->ep_is_in && (hc->ep_type == DWC_OTG_EP_TYPE_ISOC)
++		    && hcd->core_if->dma_enable) {
++			qtd->complete_split = 0;
++			qtd->isoc_split_offset = 0;
++			if (++qtd->isoc_frame_index == qtd->urb->packet_count) {
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++			}
++			else
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++			goto handle_nyet_done;
++		}
++
++		if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++		    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++			int frnum = dwc_otg_hcd_get_frame_number(hcd);
++
++			// With the FIQ running we only ever see the failed NYET
++			if (dwc_full_frame_num(frnum) !=
++			    dwc_full_frame_num(hc->qh->sched_frame) ||
++			    fiq_fsm_enable) {
++				/*
++				 * No longer in the same full speed frame.
++				 * Treat this as a transaction error.
++				 */
++#if 0
++				/** @todo Fix system performance so this can
++				 * be treated as an error. Right now complete
++				 * splits cannot be scheduled precisely enough
++				 * due to other system activity, so this error
++				 * occurs regularly in Slave mode.
++				 */
++				qtd->error_count++;
++#endif
++				qtd->complete_split = 0;
++				halt_channel(hcd, hc, qtd,
++					     DWC_OTG_HC_XFER_XACT_ERR);
++				/** @todo add support for isoc release */
++				goto handle_nyet_done;
++			}
++		}
++
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET);
++		goto handle_nyet_done;
++	}
++
++	hc->qh->ping_state = 1;
++	qtd->error_count = 0;
++
++	update_urb_state_xfer_intr(hc, hc_regs, qtd->urb, qtd,
++				   DWC_OTG_HC_XFER_NYET);
++	dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++
++	/*
++	 * Halt the channel and re-start the transfer so the PING
++	 * protocol will start.
++	 */
++	halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NYET);
++
++handle_nyet_done:
++	disable_hc_int(hc_regs, nyet);
++	return 1;
++}
++
++/**
++ * Handles a host channel babble interrupt. This handler may be called in
++ * either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_babble_intr(dwc_otg_hcd_t * hcd,
++				     dwc_hc_t * hc,
++				     dwc_otg_hc_regs_t * hc_regs,
++				     dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "Babble Error--\n", hc->hc_num);
++
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs,
++					       DWC_OTG_HC_XFER_BABBLE_ERR);
++		goto handle_babble_done;
++	}
++
++	if (hc->ep_type != DWC_OTG_EP_TYPE_ISOC) {
++		hcd->fops->complete(hcd, qtd->urb->priv,
++				    qtd->urb, -DWC_E_OVERFLOW);
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_BABBLE_ERR);
++	} else {
++		dwc_otg_halt_status_e halt_status;
++		halt_status = update_isoc_urb_state(hcd, hc, hc_regs, qtd,
++						    DWC_OTG_HC_XFER_BABBLE_ERR);
++		halt_channel(hcd, hc, qtd, halt_status);
++	}
++
++handle_babble_done:
++	disable_hc_int(hc_regs, bblerr);
++	return 1;
++}
++
++/**
++ * Handles a host channel AHB error interrupt. This handler is only called in
++ * DMA mode.
++ */
++static int32_t handle_hc_ahberr_intr(dwc_otg_hcd_t * hcd,
++				     dwc_hc_t * hc,
++				     dwc_otg_hc_regs_t * hc_regs,
++				     dwc_otg_qtd_t * qtd)
++{
++	hcchar_data_t hcchar;
++	hcsplt_data_t hcsplt;
++	hctsiz_data_t hctsiz;
++	uint32_t hcdma;
++	char *pipetype, *speed;
++
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "AHB Error--\n", hc->hc_num);
++
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt);
++	hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++	hcdma = DWC_READ_REG32(&hc_regs->hcdma);
++
++	DWC_ERROR("AHB ERROR, Channel %d\n", hc->hc_num);
++	DWC_ERROR("  hcchar 0x%08x, hcsplt 0x%08x\n", hcchar.d32, hcsplt.d32);
++	DWC_ERROR("  hctsiz 0x%08x, hcdma 0x%08x\n", hctsiz.d32, hcdma);
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Enqueue\n");
++	DWC_ERROR("  Device address: %d\n",
++		  dwc_otg_hcd_get_dev_addr(&urb->pipe_info));
++	DWC_ERROR("  Endpoint: %d, %s\n",
++		  dwc_otg_hcd_get_ep_num(&urb->pipe_info),
++		  (dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? "IN" : "OUT"));
++
++	switch (dwc_otg_hcd_get_pipe_type(&urb->pipe_info)) {
++	case UE_CONTROL:
++		pipetype = "CONTROL";
++		break;
++	case UE_BULK:
++		pipetype = "BULK";
++		break;
++	case UE_INTERRUPT:
++		pipetype = "INTERRUPT";
++		break;
++	case UE_ISOCHRONOUS:
++		pipetype = "ISOCHRONOUS";
++		break;
++	default:
++		pipetype = "UNKNOWN";
++		break;
++	}
++
++	DWC_ERROR("  Endpoint type: %s\n", pipetype);
++
++	switch (hc->speed) {
++	case DWC_OTG_EP_SPEED_HIGH:
++		speed = "HIGH";
++		break;
++	case DWC_OTG_EP_SPEED_FULL:
++		speed = "FULL";
++		break;
++	case DWC_OTG_EP_SPEED_LOW:
++		speed = "LOW";
++		break;
++	default:
++		speed = "UNKNOWN";
++		break;
++	};
++
++	DWC_ERROR("  Speed: %s\n", speed);
++
++	DWC_ERROR("  Max packet size: %d\n",
++		  dwc_otg_hcd_get_mps(&urb->pipe_info));
++	DWC_ERROR("  Data buffer length: %d\n", urb->length);
++	DWC_ERROR("  Transfer buffer: %p, Transfer DMA: %p\n",
++		  urb->buf, (void *)urb->dma);
++	DWC_ERROR("  Setup buffer: %p, Setup DMA: %p\n",
++		  urb->setup_packet, (void *)urb->setup_dma);
++	DWC_ERROR("  Interval: %d\n", urb->interval);
++
++	/* Core haltes the channel for Descriptor DMA mode */
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs,
++					       DWC_OTG_HC_XFER_AHB_ERR);
++		goto handle_ahberr_done;
++	}
++
++	hcd->fops->complete(hcd, urb->priv, urb, -DWC_E_IO);
++
++	/*
++	 * Force a channel halt. Don't call halt_channel because that won't
++	 * write to the HCCHARn register in DMA mode to force the halt.
++	 */
++	dwc_otg_hc_halt(hcd->core_if, hc, DWC_OTG_HC_XFER_AHB_ERR);
++handle_ahberr_done:
++	disable_hc_int(hc_regs, ahberr);
++	return 1;
++}
++
++/**
++ * Handles a host channel transaction error interrupt. This handler may be
++ * called in either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_xacterr_intr(dwc_otg_hcd_t * hcd,
++				      dwc_hc_t * hc,
++				      dwc_otg_hc_regs_t * hc_regs,
++				      dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "Transaction Error--\n", hc->hc_num);
++
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs,
++					       DWC_OTG_HC_XFER_XACT_ERR);
++		goto handle_xacterr_done;
++	}
++
++	switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) {
++	case UE_CONTROL:
++	case UE_BULK:
++		qtd->error_count++;
++		if (!hc->qh->ping_state) {
++
++			update_urb_state_xfer_intr(hc, hc_regs,
++						   qtd->urb, qtd,
++						   DWC_OTG_HC_XFER_XACT_ERR);
++			dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++			if (!hc->ep_is_in && hc->speed == DWC_OTG_EP_SPEED_HIGH) {
++				hc->qh->ping_state = 1;
++			}
++		}
++
++		/*
++		 * Halt the channel so the transfer can be re-started from
++		 * the appropriate point or the PING protocol will start.
++		 */
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++		break;
++	case UE_INTERRUPT:
++		qtd->error_count++;
++		if (hc->do_split && hc->complete_split) {
++			qtd->complete_split = 0;
++		}
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++		break;
++	case UE_ISOCHRONOUS:
++		{
++			dwc_otg_halt_status_e halt_status;
++			halt_status =
++			    update_isoc_urb_state(hcd, hc, hc_regs, qtd,
++						  DWC_OTG_HC_XFER_XACT_ERR);
++
++			halt_channel(hcd, hc, qtd, halt_status);
++		}
++		break;
++	}
++handle_xacterr_done:
++	disable_hc_int(hc_regs, xacterr);
++
++	return 1;
++}
++
++/**
++ * Handles a host channel frame overrun interrupt. This handler may be called
++ * in either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_frmovrun_intr(dwc_otg_hcd_t * hcd,
++				       dwc_hc_t * hc,
++				       dwc_otg_hc_regs_t * hc_regs,
++				       dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "Frame Overrun--\n", hc->hc_num);
++
++	switch (dwc_otg_hcd_get_pipe_type(&qtd->urb->pipe_info)) {
++	case UE_CONTROL:
++	case UE_BULK:
++		break;
++	case UE_INTERRUPT:
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_FRAME_OVERRUN);
++		break;
++	case UE_ISOCHRONOUS:
++		{
++			dwc_otg_halt_status_e halt_status;
++			halt_status =
++			    update_isoc_urb_state(hcd, hc, hc_regs, qtd,
++						  DWC_OTG_HC_XFER_FRAME_OVERRUN);
++
++			halt_channel(hcd, hc, qtd, halt_status);
++		}
++		break;
++	}
++
++	disable_hc_int(hc_regs, frmovrun);
++
++	return 1;
++}
++
++/**
++ * Handles a host channel data toggle error interrupt. This handler may be
++ * called in either DMA mode or Slave mode.
++ */
++static int32_t handle_hc_datatglerr_intr(dwc_otg_hcd_t * hcd,
++					 dwc_hc_t * hc,
++					 dwc_otg_hc_regs_t * hc_regs,
++					 dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		"Data Toggle Error on %s transfer--\n",
++		hc->hc_num, (hc->ep_is_in ? "IN" : "OUT"));
++
++	/* Data toggles on split transactions cause the hc to halt.
++	 * restart transfer */
++	if(hc->qh->do_split)
++	{
++		qtd->error_count++;
++		dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++		update_urb_state_xfer_intr(hc, hc_regs,
++			qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++	} else if (hc->ep_is_in) {
++		/* An unmasked data toggle error on a non-split DMA transaction is
++		 * for the sole purpose of resetting error counts. Disable other
++		 * interrupts unmasked for the same reason.
++		 */
++		if(hcd->core_if->dma_enable) {
++			disable_hc_int(hc_regs, ack);
++			disable_hc_int(hc_regs, nak);
++		}
++		qtd->error_count = 0;
++	}
++
++	disable_hc_int(hc_regs, datatglerr);
++
++	return 1;
++}
++
++#ifdef DEBUG
++/**
++ * This function is for debug only. It checks that a valid halt status is set
++ * and that HCCHARn.chdis is clear. If there's a problem, corrective action is
++ * taken and a warning is issued.
++ * @return 1 if halt status is ok, 0 otherwise.
++ */
++static inline int halt_status_ok(dwc_otg_hcd_t * hcd,
++				 dwc_hc_t * hc,
++				 dwc_otg_hc_regs_t * hc_regs,
++				 dwc_otg_qtd_t * qtd)
++{
++	hcchar_data_t hcchar;
++	hctsiz_data_t hctsiz;
++	hcint_data_t hcint;
++	hcintmsk_data_t hcintmsk;
++	hcsplt_data_t hcsplt;
++
++	if (hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS) {
++		/*
++		 * This code is here only as a check. This condition should
++		 * never happen. Ignore the halt if it does occur.
++		 */
++		hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++		hctsiz.d32 = DWC_READ_REG32(&hc_regs->hctsiz);
++		hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++		hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk);
++		hcsplt.d32 = DWC_READ_REG32(&hc_regs->hcsplt);
++		DWC_WARN
++		    ("%s: hc->halt_status == DWC_OTG_HC_XFER_NO_HALT_STATUS, "
++		     "channel %d, hcchar 0x%08x, hctsiz 0x%08x, "
++		     "hcint 0x%08x, hcintmsk 0x%08x, "
++		     "hcsplt 0x%08x, qtd->complete_split %d\n", __func__,
++		     hc->hc_num, hcchar.d32, hctsiz.d32, hcint.d32,
++		     hcintmsk.d32, hcsplt.d32, qtd->complete_split);
++
++		DWC_WARN("%s: no halt status, channel %d, ignoring interrupt\n",
++			 __func__, hc->hc_num);
++		DWC_WARN("\n");
++		clear_hc_int(hc_regs, chhltd);
++		return 0;
++	}
++
++	/*
++	 * This code is here only as a check. hcchar.chdis should
++	 * never be set when the halt interrupt occurs. Halt the
++	 * channel again if it does occur.
++	 */
++	hcchar.d32 = DWC_READ_REG32(&hc_regs->hcchar);
++	if (hcchar.b.chdis) {
++		DWC_WARN("%s: hcchar.chdis set unexpectedly, "
++			 "hcchar 0x%08x, trying to halt again\n",
++			 __func__, hcchar.d32);
++		clear_hc_int(hc_regs, chhltd);
++		hc->halt_pending = 0;
++		halt_channel(hcd, hc, qtd, hc->halt_status);
++		return 0;
++	}
++
++	return 1;
++}
++#endif
++
++/**
++ * Handles a host Channel Halted interrupt in DMA mode. This handler
++ * determines the reason the channel halted and proceeds accordingly.
++ */
++static void handle_hc_chhltd_intr_dma(dwc_otg_hcd_t * hcd,
++				      dwc_hc_t * hc,
++				      dwc_otg_hc_regs_t * hc_regs,
++				      dwc_otg_qtd_t * qtd)
++{
++	int out_nak_enh = 0;
++	hcint_data_t hcint;
++	hcintmsk_data_t hcintmsk;
++	/* For core with OUT NAK enhancement, the flow for high-
++	 * speed CONTROL/BULK OUT is handled a little differently.
++	 */
++	if (hcd->core_if->snpsid >= OTG_CORE_REV_2_71a) {
++		if (hc->speed == DWC_OTG_EP_SPEED_HIGH && !hc->ep_is_in &&
++		    (hc->ep_type == DWC_OTG_EP_TYPE_CONTROL ||
++		     hc->ep_type == DWC_OTG_EP_TYPE_BULK)) {
++			out_nak_enh = 1;
++		}
++	}
++
++	if (hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE ||
++	    (hc->halt_status == DWC_OTG_HC_XFER_AHB_ERR
++	     && !hcd->core_if->dma_desc_enable)) {
++		/*
++		 * Just release the channel. A dequeue can happen on a
++		 * transfer timeout. In the case of an AHB Error, the channel
++		 * was forced to halt because there's no way to gracefully
++		 * recover.
++		 */
++		if (hcd->core_if->dma_desc_enable)
++			dwc_otg_hcd_complete_xfer_ddma(hcd, hc, hc_regs,
++						       hc->halt_status);
++		else
++			release_channel(hcd, hc, qtd, hc->halt_status);
++		return;
++	}
++
++	/* Read the HCINTn register to determine the cause for the halt. */
++
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++	hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk);
++
++	if (hcint.b.xfercomp) {
++		/** @todo This is here because of a possible hardware bug.  Spec
++		 * says that on SPLIT-ISOC OUT transfers in DMA mode that a HALT
++		 * interrupt w/ACK bit set should occur, but I only see the
++		 * XFERCOMP bit, even with it masked out.  This is a workaround
++		 * for that behavior.  Should fix this when hardware is fixed.
++		 */
++		if (hc->ep_type == DWC_OTG_EP_TYPE_ISOC && !hc->ep_is_in) {
++			handle_hc_ack_intr(hcd, hc, hc_regs, qtd);
++		}
++		handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.stall) {
++		handle_hc_stall_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.xacterr && !hcd->core_if->dma_desc_enable) {
++		if (out_nak_enh) {
++			if (hcint.b.nyet || hcint.b.nak || hcint.b.ack) {
++				DWC_DEBUGPL(DBG_HCD, "XactErr with NYET/NAK/ACK\n");
++				qtd->error_count = 0;
++			} else {
++				DWC_DEBUGPL(DBG_HCD, "XactErr without NYET/NAK/ACK\n");
++			}
++		}
++
++		/*
++		 * Must handle xacterr before nak or ack. Could get a xacterr
++		 * at the same time as either of these on a BULK/CONTROL OUT
++		 * that started with a PING. The xacterr takes precedence.
++		 */
++		handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.xcs_xact && hcd->core_if->dma_desc_enable) {
++		handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.ahberr && hcd->core_if->dma_desc_enable) {
++		handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.bblerr) {
++		handle_hc_babble_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.frmovrun) {
++		handle_hc_frmovrun_intr(hcd, hc, hc_regs, qtd);
++	} else if (hcint.b.datatglerr) {
++		handle_hc_datatglerr_intr(hcd, hc, hc_regs, qtd);
++	} else if (!out_nak_enh) {
++		if (hcint.b.nyet) {
++			/*
++			 * Must handle nyet before nak or ack. Could get a nyet at the
++			 * same time as either of those on a BULK/CONTROL OUT that
++			 * started with a PING. The nyet takes precedence.
++			 */
++			handle_hc_nyet_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.nak && !hcintmsk.b.nak) {
++			/*
++			 * If nak is not masked, it's because a non-split IN transfer
++			 * is in an error state. In that case, the nak is handled by
++			 * the nak interrupt handler, not here. Handle nak here for
++			 * BULK/CONTROL OUT transfers, which halt on a NAK to allow
++			 * rewinding the buffer pointer.
++			 */
++			handle_hc_nak_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.ack && !hcintmsk.b.ack) {
++			/*
++			 * If ack is not masked, it's because a non-split IN transfer
++			 * is in an error state. In that case, the ack is handled by
++			 * the ack interrupt handler, not here. Handle ack here for
++			 * split transfers. Start splits halt on ACK.
++			 */
++			handle_hc_ack_intr(hcd, hc, hc_regs, qtd);
++		} else {
++			if (hc->ep_type == DWC_OTG_EP_TYPE_INTR ||
++			    hc->ep_type == DWC_OTG_EP_TYPE_ISOC) {
++				/*
++				 * A periodic transfer halted with no other channel
++				 * interrupts set. Assume it was halted by the core
++				 * because it could not be completed in its scheduled
++				 * (micro)frame.
++				 */
++#ifdef DEBUG
++				DWC_PRINTF
++				    ("%s: Halt channel %d (assume incomplete periodic transfer)\n",
++				     __func__, hc->hc_num);
++#endif
++				halt_channel(hcd, hc, qtd,
++					     DWC_OTG_HC_XFER_PERIODIC_INCOMPLETE);
++			} else {
++				DWC_ERROR
++				    ("%s: Channel %d, DMA Mode -- ChHltd set, but reason "
++				     "for halting is unknown, hcint 0x%08x, intsts 0x%08x\n",
++				     __func__, hc->hc_num, hcint.d32,
++				     DWC_READ_REG32(&hcd->
++						    core_if->core_global_regs->
++						    gintsts));
++				/* Failthrough: use 3-strikes rule */
++				qtd->error_count++;
++				dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++				update_urb_state_xfer_intr(hc, hc_regs,
++					   qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++				halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++			}
++
++		}
++	} else {
++		DWC_PRINTF("NYET/NAK/ACK/other in non-error case, 0x%08x\n",
++			   hcint.d32);
++		/* Failthrough: use 3-strikes rule */
++		qtd->error_count++;
++		dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++		update_urb_state_xfer_intr(hc, hc_regs,
++			   qtd->urb, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++		halt_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_XACT_ERR);
++	}
++}
++
++/**
++ * Handles a host channel Channel Halted interrupt.
++ *
++ * In slave mode, this handler is called only when the driver specifically
++ * requests a halt. This occurs during handling other host channel interrupts
++ * (e.g. nak, xacterr, stall, nyet, etc.).
++ *
++ * In DMA mode, this is the interrupt that occurs when the core has finished
++ * processing a transfer on a channel. Other host channel interrupts (except
++ * ahberr) are disabled in DMA mode.
++ */
++static int32_t handle_hc_chhltd_intr(dwc_otg_hcd_t * hcd,
++				     dwc_hc_t * hc,
++				     dwc_otg_hc_regs_t * hc_regs,
++				     dwc_otg_qtd_t * qtd)
++{
++	DWC_DEBUGPL(DBG_HCDI, "--Host Channel %d Interrupt: "
++		    "Channel Halted--\n", hc->hc_num);
++
++	if (hcd->core_if->dma_enable) {
++		handle_hc_chhltd_intr_dma(hcd, hc, hc_regs, qtd);
++	} else {
++#ifdef DEBUG
++		if (!halt_status_ok(hcd, hc, hc_regs, qtd)) {
++			return 1;
++		}
++#endif
++		release_channel(hcd, hc, qtd, hc->halt_status);
++	}
++
++	return 1;
++}
++
++
++/**
++ * dwc_otg_fiq_unmangle_isoc() - Update the iso_frame_desc structure on
++ * FIQ transfer completion
++ * @hcd:	Pointer to dwc_otg_hcd struct
++ * @num:	Host channel number
++ *
++ * 1. Un-mangle the status as recorded in each iso_frame_desc status
++ * 2. Copy it from the dwc_otg_urb into the real URB
++ */
++void dwc_otg_fiq_unmangle_isoc(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, dwc_otg_qtd_t *qtd, uint32_t num)
++{
++	struct dwc_otg_hcd_urb *dwc_urb = qtd->urb;
++	int nr_frames = dwc_urb->packet_count;
++	int i;
++	hcint_data_t frame_hcint;
++
++	for (i = 0; i < nr_frames; i++) {
++		frame_hcint.d32 = dwc_urb->iso_descs[i].status;
++		if (frame_hcint.b.xfercomp) {
++			dwc_urb->iso_descs[i].status = 0;
++			dwc_urb->actual_length += dwc_urb->iso_descs[i].actual_length;
++		} else if (frame_hcint.b.frmovrun) {
++			if (qh->ep_is_in)
++				dwc_urb->iso_descs[i].status = -DWC_E_NO_STREAM_RES;
++			else
++				dwc_urb->iso_descs[i].status = -DWC_E_COMMUNICATION;
++			dwc_urb->error_count++;
++			dwc_urb->iso_descs[i].actual_length = 0;
++		} else if (frame_hcint.b.xacterr) {
++			dwc_urb->iso_descs[i].status = -DWC_E_PROTOCOL;
++			dwc_urb->error_count++;
++			dwc_urb->iso_descs[i].actual_length = 0;
++		} else if (frame_hcint.b.bblerr) {
++			dwc_urb->iso_descs[i].status = -DWC_E_OVERFLOW;
++			dwc_urb->error_count++;
++			dwc_urb->iso_descs[i].actual_length = 0;
++		} else {
++			/* Something went wrong */
++			dwc_urb->iso_descs[i].status = -1;
++			dwc_urb->iso_descs[i].actual_length = 0;
++			dwc_urb->error_count++;
++		}
++	}
++	qh->sched_frame = dwc_frame_num_inc(qh->sched_frame, qh->interval * (nr_frames - 1));
++
++	//printk_ratelimited(KERN_INFO "%s: HS isochronous of %d/%d frames with %d errors complete\n",
++	//			__FUNCTION__, i, dwc_urb->packet_count, dwc_urb->error_count);
++}
++
++/**
++ * dwc_otg_fiq_unsetup_per_dma() - Remove data from bounce buffers for split transactions
++ * @hcd:	Pointer to dwc_otg_hcd struct
++ * @num:	Host channel number
++ *
++ * Copies data from the FIQ bounce buffers into the URB's transfer buffer. Does not modify URB state.
++ * Returns total length of data or -1 if the buffers were not used.
++ *
++ */
++int dwc_otg_fiq_unsetup_per_dma(dwc_otg_hcd_t *hcd, dwc_otg_qh_t *qh, dwc_otg_qtd_t *qtd, uint32_t num)
++{
++	dwc_hc_t *hc = qh->channel;
++	struct fiq_dma_blob *blob = hcd->fiq_dmab;
++	struct fiq_channel_state *st = &hcd->fiq_state->channel[num];
++	uint8_t *ptr = NULL;
++	int index = 0, len = 0;
++	int i = 0;
++	if (hc->ep_is_in) {
++		/* Copy data out of the DMA bounce buffers to the URB's buffer.
++		 * The align_buf is ignored as this is ignored on FSM enqueue. */
++		ptr = qtd->urb->buf;
++		if (qh->ep_type == UE_ISOCHRONOUS) {
++			/* Isoc IN transactions - grab the offset of the iso_frame_desc into the URB transfer buffer */
++			index = qtd->isoc_frame_index;
++			ptr += qtd->urb->iso_descs[index].offset;
++		} else {
++			/* Need to increment by actual_length for interrupt IN */
++			ptr += qtd->urb->actual_length;
++		}
++
++		for (i = 0; i < st->dma_info.index; i++) {
++			len += st->dma_info.slot_len[i];
++			dwc_memcpy(ptr, &blob->channel[num].index[i].buf[0], st->dma_info.slot_len[i]);
++			ptr += st->dma_info.slot_len[i];
++		}
++		return len;
++	} else {
++		/* OUT endpoints - nothing to do. */
++		return -1;
++	}
++
++}
++/**
++ * dwc_otg_hcd_handle_hc_fsm() - handle an unmasked channel interrupt
++ * 				 from a channel handled in the FIQ
++ * @hcd:	Pointer to dwc_otg_hcd struct
++ * @num:	Host channel number
++ *
++ * If a host channel interrupt was received by the IRQ and this was a channel
++ * used by the FIQ, the execution flow for transfer completion is substantially
++ * different from the normal (messy) path. This function and its friends handles
++ * channel cleanup and transaction completion from a FIQ transaction.
++ */
++void dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd_t *hcd, uint32_t num)
++{
++	struct fiq_channel_state *st = &hcd->fiq_state->channel[num];
++	dwc_hc_t *hc = hcd->hc_ptr_array[num];
++	dwc_otg_qtd_t *qtd;
++	dwc_otg_hc_regs_t *hc_regs = hcd->core_if->host_if->hc_regs[num];
++	hcint_data_t hcint = hcd->fiq_state->channel[num].hcint_copy;
++	hctsiz_data_t hctsiz = hcd->fiq_state->channel[num].hctsiz_copy;
++	int hostchannels  = 0;
++	fiq_print(FIQDBG_INT, hcd->fiq_state, "OUT %01d %01d ", num , st->fsm);
++
++	hostchannels = hcd->available_host_channels;
++	if (hc->halt_pending) {
++		/* Dequeue: The FIQ was allowed to complete the transfer but state has been cleared. */
++		if (hc->qh && st->fsm == FIQ_NP_SPLIT_DONE &&
++				hcint.b.xfercomp && hc->qh->ep_type == UE_BULK) {
++			if (hctsiz.b.pid == DWC_HCTSIZ_DATA0) {
++				hc->qh->data_toggle = DWC_OTG_HC_PID_DATA1;
++			} else {
++				hc->qh->data_toggle = DWC_OTG_HC_PID_DATA0;
++			}
++		}
++		release_channel(hcd, hc, NULL, hc->halt_status);
++		return;
++	}
++
++	qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list);
++	switch (st->fsm) {
++	case FIQ_TEST:
++		break;
++
++	case FIQ_DEQUEUE_ISSUED:
++		/* Handled above, but keep for posterity */
++		release_channel(hcd, hc, NULL, hc->halt_status);
++		break;
++
++	case FIQ_NP_SPLIT_DONE:
++		/* Nonperiodic transaction complete. */
++		if (!hc->ep_is_in) {
++			qtd->ssplit_out_xfer_count = hc->xfer_len;
++		}
++		if (hcint.b.xfercomp) {
++			handle_hc_xfercomp_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.nak) {
++			handle_hc_nak_intr(hcd, hc, hc_regs, qtd);
++		} else {
++			DWC_WARN("Unexpected IRQ state on FSM transaction:"
++					"dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n",
++				hc->dev_addr, hc->ep_num, st->fsm, hcint.d32);
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	case FIQ_NP_SPLIT_HS_ABORTED:
++		/* A HS abort is a 3-strikes on the HS bus at any point in the transaction.
++		 * Normally a CLEAR_TT_BUFFER hub command would be required: we can't do that
++		 * because there's no guarantee which order a non-periodic split happened in.
++		 * We could end up clearing a perfectly good transaction out of the buffer.
++		 */
++		if (hcint.b.xacterr) {
++			qtd->error_count += st->nr_errors;
++			handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.ahberr) {
++			handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd);
++		} else {
++			DWC_WARN("Unexpected IRQ state on FSM transaction:"
++					"dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n",
++				hc->dev_addr, hc->ep_num, st->fsm, hcint.d32);
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	case FIQ_NP_SPLIT_LS_ABORTED:
++		/* A few cases can cause this - either an unknown state on a SSPLIT or
++		 * STALL/data toggle error response on a CSPLIT */
++		if (hcint.b.stall) {
++			handle_hc_stall_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.datatglerr) {
++			handle_hc_datatglerr_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.bblerr) {
++			handle_hc_babble_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.ahberr) {
++			handle_hc_ahberr_intr(hcd, hc, hc_regs, qtd);
++		} else {
++			DWC_WARN("Unexpected IRQ state on FSM transaction:"
++					"dev_addr=%d ep=%d fsm=%d, hcint=0x%08x\n",
++				hc->dev_addr, hc->ep_num, st->fsm, hcint.d32);
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	case FIQ_PER_SPLIT_DONE:
++		/* Isoc IN or Interrupt IN/OUT */
++
++		/* Flow control here is different from the normal execution by the driver.
++		* We need to completely ignore most of the driver's method of handling
++		* split transactions and do it ourselves.
++		*/
++		if (hc->ep_type == UE_INTERRUPT) {
++			if (hcint.b.nak) {
++					handle_hc_nak_intr(hcd, hc, hc_regs, qtd);
++			} else if (hc->ep_is_in) {
++				int len;
++				len = dwc_otg_fiq_unsetup_per_dma(hcd, hc->qh, qtd, num);
++				//printk(KERN_NOTICE "FIQ Transaction: hc=%d len=%d urb_len = %d\n", num, len, qtd->urb->length);
++				qtd->urb->actual_length += len;
++				if (qtd->urb->actual_length >= qtd->urb->length) {
++					qtd->urb->status = 0;
++					hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status);
++					release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++				} else {
++					/* Interrupt transfer not complete yet - is it a short read? */
++					if (len < hc->max_packet) {
++						/* Interrupt transaction complete */
++						qtd->urb->status = 0;
++						hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status);
++						release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++					} else {
++						/* Further transactions required */
++						release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++					}
++				}
++			} else {
++				/* Interrupt OUT complete. */
++				dwc_otg_hcd_save_data_toggle(hc, hc_regs, qtd);
++				qtd->urb->actual_length += hc->xfer_len;
++				if (qtd->urb->actual_length >= qtd->urb->length) {
++					qtd->urb->status = 0;
++					hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, qtd->urb->status);
++					release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++				} else {
++					release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++				}
++			}
++		} else {
++			/* ISOC IN complete. */
++			struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			int len = 0;
++			/* Record errors, update qtd. */
++			if (st->nr_errors) {
++				frame_desc->actual_length = 0;
++				frame_desc->status = -DWC_E_PROTOCOL;
++			} else {
++				frame_desc->status = 0;
++				/* Unswizzle dma */
++				len = dwc_otg_fiq_unsetup_per_dma(hcd, hc->qh, qtd, num);
++				frame_desc->actual_length = len;
++			}
++			qtd->isoc_frame_index++;
++			if (qtd->isoc_frame_index == qtd->urb->packet_count) {
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++			} else {
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++			}
++		}
++		break;
++
++	case FIQ_PER_ISO_OUT_DONE: {
++			struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			/* Record errors, update qtd. */
++			if (st->nr_errors) {
++				frame_desc->actual_length = 0;
++				frame_desc->status = -DWC_E_PROTOCOL;
++			} else {
++				frame_desc->status = 0;
++				frame_desc->actual_length = frame_desc->length;
++			}
++			qtd->isoc_frame_index++;
++			qtd->isoc_split_offset = 0;
++			if (qtd->isoc_frame_index == qtd->urb->packet_count) {
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++			} else {
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++			}
++		}
++		break;
++
++	case FIQ_PER_SPLIT_NYET_ABORTED:
++		/* Doh. lost the data. */
++		printk_ratelimited(KERN_INFO "Transfer to device %d endpoint 0x%x frame %d failed "
++				"- FIQ reported NYET. Data may have been lost.\n",
++				hc->dev_addr, hc->ep_num, dwc_otg_hcd_get_frame_number(hcd) >> 3);
++		if (hc->ep_type == UE_ISOCHRONOUS) {
++			struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			/* Record errors, update qtd. */
++			frame_desc->actual_length = 0;
++			frame_desc->status = -DWC_E_PROTOCOL;
++			qtd->isoc_frame_index++;
++			qtd->isoc_split_offset = 0;
++			if (qtd->isoc_frame_index == qtd->urb->packet_count) {
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++			} else {
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++			}
++		} else {
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	case FIQ_HS_ISOC_DONE:
++		/* The FIQ has performed a whole pile of isochronous transactions.
++		 * The status is recorded as the interrupt state should the transaction
++		 * fail.
++		 */
++		dwc_otg_fiq_unmangle_isoc(hcd, hc->qh, qtd, num);
++		hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++		release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++		break;
++
++	case FIQ_PER_SPLIT_LS_ABORTED:
++		if (hcint.b.xacterr) {
++			/* Hub has responded with an ERR packet. Device
++			 * has been unplugged or the port has been disabled.
++			 * TODO: need to issue a reset to the hub port. */
++			qtd->error_count += 3;
++			handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.stall) {
++			handle_hc_stall_intr(hcd, hc, hc_regs, qtd);
++		} else if (hcint.b.bblerr) {
++			handle_hc_babble_intr(hcd, hc, hc_regs, qtd);
++		} else {
++			printk_ratelimited(KERN_INFO "Transfer to device %d endpoint 0x%x failed "
++				"- FIQ reported FSM=%d. Data may have been lost.\n",
++				st->fsm, hc->dev_addr, hc->ep_num);
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	case FIQ_PER_SPLIT_HS_ABORTED:
++		/* Either the SSPLIT phase suffered transaction errors or something
++		 * unexpected happened.
++		 */
++		qtd->error_count += 3;
++		handle_hc_xacterr_intr(hcd, hc, hc_regs, qtd);
++		release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		break;
++
++	case FIQ_PER_SPLIT_TIMEOUT:
++		/* Couldn't complete in the nominated frame */
++		printk(KERN_INFO "Transfer to device %d endpoint 0x%x frame %d failed "
++				"- FIQ timed out. Data may have been lost.\n",
++				hc->dev_addr, hc->ep_num, dwc_otg_hcd_get_frame_number(hcd) >> 3);
++		if (hc->ep_type == UE_ISOCHRONOUS) {
++			struct dwc_otg_hcd_iso_packet_desc *frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index];
++			/* Record errors, update qtd. */
++			frame_desc->actual_length = 0;
++			if (hc->ep_is_in) {
++				frame_desc->status = -DWC_E_NO_STREAM_RES;
++			} else {
++				frame_desc->status = -DWC_E_COMMUNICATION;
++			}
++			qtd->isoc_frame_index++;
++			if (qtd->isoc_frame_index == qtd->urb->packet_count) {
++				hcd->fops->complete(hcd, qtd->urb->priv, qtd->urb, 0);
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_URB_COMPLETE);
++			} else {
++				release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_COMPLETE);
++			}
++		} else {
++			release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++		}
++		break;
++
++	default:
++		DWC_WARN("Unexpected state received on hc=%d fsm=%d on transfer to device %d ep 0x%x", 
++					hc->hc_num, st->fsm, hc->dev_addr, hc->ep_num);
++		qtd->error_count++;
++		release_channel(hcd, hc, qtd, DWC_OTG_HC_XFER_NO_HALT_STATUS);
++	}
++	return;
++}
++
++/** Handles interrupt for a specific Host Channel */
++int32_t dwc_otg_hcd_handle_hc_n_intr(dwc_otg_hcd_t * dwc_otg_hcd, uint32_t num)
++{
++	int retval = 0;
++	hcint_data_t hcint;
++	hcintmsk_data_t hcintmsk;
++	dwc_hc_t *hc;
++	dwc_otg_hc_regs_t *hc_regs;
++	dwc_otg_qtd_t *qtd;
++
++	DWC_DEBUGPL(DBG_HCDV, "--Host Channel Interrupt--, Channel %d\n", num);
++
++	hc = dwc_otg_hcd->hc_ptr_array[num];
++	hc_regs = dwc_otg_hcd->core_if->host_if->hc_regs[num];
++	if(hc->halt_status == DWC_OTG_HC_XFER_URB_DEQUEUE) {
++		/* A dequeue was issued for this transfer. Our QTD has gone away
++		 * but in the case of a FIQ transfer, the transfer would have run
++		 * to completion.
++		 */
++		if (fiq_fsm_enable && dwc_otg_hcd->fiq_state->channel[num].fsm != FIQ_PASSTHROUGH) {
++			dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd, num);
++		} else {
++			release_channel(dwc_otg_hcd, hc, NULL, hc->halt_status);
++		}
++		return 1;
++	}
++	qtd = DWC_CIRCLEQ_FIRST(&hc->qh->qtd_list);
++
++	/*
++	 * FSM mode: Check to see if this is a HC interrupt from a channel handled by the FIQ.
++	 * Execution path is fundamentally different for the channels after a FIQ has completed
++	 * a split transaction.
++	 */
++	if (fiq_fsm_enable) {
++		switch (dwc_otg_hcd->fiq_state->channel[num].fsm) {
++			case FIQ_PASSTHROUGH:
++				break;
++			case FIQ_PASSTHROUGH_ERRORSTATE:
++				/* Hook into the error count */
++				fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "HCDERR%02d", num);
++				if (!dwc_otg_hcd->fiq_state->channel[num].nr_errors) {
++					qtd->error_count = 0;
++					fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "RESET   ");
++				}
++				break;
++			default:
++				dwc_otg_hcd_handle_hc_fsm(dwc_otg_hcd, num);
++				return 1;
++		}
++	}
++
++	hcint.d32 = DWC_READ_REG32(&hc_regs->hcint);
++	hcintmsk.d32 = DWC_READ_REG32(&hc_regs->hcintmsk);
++	hcint.d32 = hcint.d32 & hcintmsk.d32;
++	if (!dwc_otg_hcd->core_if->dma_enable) {
++		if (hcint.b.chhltd && hcint.d32 != 0x2) {
++			hcint.b.chhltd = 0;
++		}
++	}
++
++	if (hcint.b.xfercomp) {
++		retval |=
++		    handle_hc_xfercomp_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++		/*
++		 * If NYET occurred at same time as Xfer Complete, the NYET is
++		 * handled by the Xfer Complete interrupt handler. Don't want
++		 * to call the NYET interrupt handler in this case.
++		 */
++		hcint.b.nyet = 0;
++	}
++	if (hcint.b.chhltd) {
++		retval |= handle_hc_chhltd_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.ahberr) {
++		retval |= handle_hc_ahberr_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.stall) {
++		retval |= handle_hc_stall_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.nak) {
++		retval |= handle_hc_nak_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.ack) {
++		if(!hcint.b.chhltd)
++			retval |= handle_hc_ack_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.nyet) {
++		retval |= handle_hc_nyet_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.xacterr) {
++		retval |= handle_hc_xacterr_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.bblerr) {
++		retval |= handle_hc_babble_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.frmovrun) {
++		retval |=
++		    handle_hc_frmovrun_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++	if (hcint.b.datatglerr) {
++		retval |=
++		    handle_hc_datatglerr_intr(dwc_otg_hcd, hc, hc_regs, qtd);
++	}
++
++	return retval;
++}
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+@@ -0,0 +1,1086 @@
++
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_linux.c $
++ * $Revision: #20 $
++ * $Date: 2011/10/26 $
++ * $Change: 1872981 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++
++/**
++ * @file
++ *
++ * This file contains the implementation of the HCD. In Linux, the HCD
++ * implements the hc_driver API.
++ */
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/errno.h>
++#include <linux/list.h>
++#include <linux/interrupt.h>
++#include <linux/string.h>
++#include <linux/dma-mapping.h>
++#include <linux/version.h>
++#include <asm/io.h>
++#ifdef CONFIG_ARM
++#include <asm/fiq.h>
++#endif
++#include <linux/usb.h>
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35)
++#include <../drivers/usb/core/hcd.h>
++#else
++#include <linux/usb/hcd.h>
++#endif
++#include <asm/bug.h>
++
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
++#define USB_URB_EP_LINKING 1
++#else
++#define USB_URB_EP_LINKING 0
++#endif
++
++#include "dwc_otg_hcd_if.h"
++#include "dwc_otg_dbg.h"
++#include "dwc_otg_driver.h"
++#include "dwc_otg_hcd.h"
++
++#ifndef __virt_to_bus
++#define __virt_to_bus	__virt_to_phys
++#define __bus_to_virt	__phys_to_virt
++#define __pfn_to_bus(x)	__pfn_to_phys(x)
++#define __bus_to_pfn(x)	__phys_to_pfn(x)
++#endif
++
++extern unsigned char  _dwc_otg_fiq_stub, _dwc_otg_fiq_stub_end;
++
++/**
++ * Gets the endpoint number from a _bEndpointAddress argument. The endpoint is
++ * qualified with its direction (possible 32 endpoints per device).
++ */
++#define dwc_ep_addr_to_endpoint(_bEndpointAddress_) ((_bEndpointAddress_ & USB_ENDPOINT_NUMBER_MASK) | \
++						     ((_bEndpointAddress_ & USB_DIR_IN) != 0) << 4)
++
++static const char dwc_otg_hcd_name[] = "dwc_otg_hcd";
++
++extern bool fiq_enable;
++
++/** @name Linux HC Driver API Functions */
++/** @{ */
++/* manage i/o requests, device state */
++static int dwc_otg_urb_enqueue(struct usb_hcd *hcd,
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++		       struct usb_host_endpoint *ep,
++#endif
++		       struct urb *urb, gfp_t mem_flags);
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb);
++#endif
++#else /* kernels at or post 2.6.30 */
++static int dwc_otg_urb_dequeue(struct usb_hcd *hcd,
++                               struct urb *urb, int status);
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) */
++
++static void endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
++static void endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep);
++#endif
++static irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd);
++extern int hcd_start(struct usb_hcd *hcd);
++extern void hcd_stop(struct usb_hcd *hcd);
++static int get_frame_number(struct usb_hcd *hcd);
++extern int hub_status_data(struct usb_hcd *hcd, char *buf);
++extern int hub_control(struct usb_hcd *hcd,
++		       u16 typeReq,
++		       u16 wValue, u16 wIndex, char *buf, u16 wLength);
++
++struct wrapper_priv_data {
++	dwc_otg_hcd_t *dwc_otg_hcd;
++};
++
++/** @} */
++
++static struct hc_driver dwc_otg_hc_driver = {
++
++	.description = dwc_otg_hcd_name,
++	.product_desc = "DWC OTG Controller",
++	.hcd_priv_size = sizeof(struct wrapper_priv_data),
++
++	.irq = dwc_otg_hcd_irq,
++
++	.flags = HCD_MEMORY | HCD_DMA | HCD_USB2,
++
++	//.reset =
++	.start = hcd_start,
++	//.suspend =
++	//.resume =
++	.stop = hcd_stop,
++
++	.urb_enqueue = dwc_otg_urb_enqueue,
++	.urb_dequeue = dwc_otg_urb_dequeue,
++	.endpoint_disable = endpoint_disable,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
++	.endpoint_reset = endpoint_reset,
++#endif
++	.get_frame_number = get_frame_number,
++
++	.hub_status_data = hub_status_data,
++	.hub_control = hub_control,
++	//.bus_suspend =
++	//.bus_resume =
++};
++
++/** Gets the dwc_otg_hcd from a struct usb_hcd */
++static inline dwc_otg_hcd_t *hcd_to_dwc_otg_hcd(struct usb_hcd *hcd)
++{
++	struct wrapper_priv_data *p;
++	p = (struct wrapper_priv_data *)(hcd->hcd_priv);
++	return p->dwc_otg_hcd;
++}
++
++/** Gets the struct usb_hcd that contains a dwc_otg_hcd_t. */
++static inline struct usb_hcd *dwc_otg_hcd_to_hcd(dwc_otg_hcd_t * dwc_otg_hcd)
++{
++	return dwc_otg_hcd_get_priv_data(dwc_otg_hcd);
++}
++
++/** Gets the usb_host_endpoint associated with an URB. */
++inline struct usb_host_endpoint *dwc_urb_to_endpoint(struct urb *urb)
++{
++	struct usb_device *dev = urb->dev;
++	int ep_num = usb_pipeendpoint(urb->pipe);
++
++	if (usb_pipein(urb->pipe))
++		return dev->ep_in[ep_num];
++	else
++		return dev->ep_out[ep_num];
++}
++
++static int _disconnect(dwc_otg_hcd_t * hcd)
++{
++	struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd);
++
++	usb_hcd->self.is_b_host = 0;
++	return 0;
++}
++
++static int _start(dwc_otg_hcd_t * hcd)
++{
++	struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd);
++
++	usb_hcd->self.is_b_host = dwc_otg_hcd_is_b_host(hcd);
++	hcd_start(usb_hcd);
++
++	return 0;
++}
++
++static int _hub_info(dwc_otg_hcd_t * hcd, void *urb_handle, uint32_t * hub_addr,
++		     uint32_t * port_addr)
++{
++   struct urb *urb = (struct urb *)urb_handle;
++   struct usb_bus *bus;
++#if 1 //GRAYG - temporary
++   if (NULL == urb_handle)
++      DWC_ERROR("**** %s - NULL URB handle\n", __func__);//GRAYG
++   if (NULL == urb->dev)
++      DWC_ERROR("**** %s - URB has no device\n", __func__);//GRAYG
++   if (NULL == port_addr)
++      DWC_ERROR("**** %s - NULL port_address\n", __func__);//GRAYG
++#endif
++   if (urb->dev->tt) {
++        if (NULL == urb->dev->tt->hub) {
++                DWC_ERROR("**** %s - (URB's transactor has no TT - giving no hub)\n",
++                           __func__); //GRAYG
++                //*hub_addr = (u8)usb_pipedevice(urb->pipe); //GRAYG
++                *hub_addr = 0; //GRAYG
++                // we probably shouldn't have a transaction translator if
++                // there's no associated hub?
++        } else {
++		bus = hcd_to_bus(dwc_otg_hcd_to_hcd(hcd));
++		if (urb->dev->tt->hub == bus->root_hub)
++			*hub_addr = 0;
++		else
++			*hub_addr = urb->dev->tt->hub->devnum;
++	}
++	*port_addr = urb->dev->ttport;
++   } else {
++        *hub_addr = 0;
++	*port_addr = urb->dev->ttport;
++   }
++   return 0;
++}
++
++static int _speed(dwc_otg_hcd_t * hcd, void *urb_handle)
++{
++	struct urb *urb = (struct urb *)urb_handle;
++	return urb->dev->speed;
++}
++
++static int _get_b_hnp_enable(dwc_otg_hcd_t * hcd)
++{
++	struct usb_hcd *usb_hcd = dwc_otg_hcd_to_hcd(hcd);
++	return usb_hcd->self.b_hnp_enable;
++}
++
++static void allocate_bus_bandwidth(struct usb_hcd *hcd, uint32_t bw,
++				   struct urb *urb)
++{
++	hcd_to_bus(hcd)->bandwidth_allocated += bw / urb->interval;
++	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++		hcd_to_bus(hcd)->bandwidth_isoc_reqs++;
++	} else {
++		hcd_to_bus(hcd)->bandwidth_int_reqs++;
++	}
++}
++
++static void free_bus_bandwidth(struct usb_hcd *hcd, uint32_t bw,
++			       struct urb *urb)
++{
++	hcd_to_bus(hcd)->bandwidth_allocated -= bw / urb->interval;
++	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++		hcd_to_bus(hcd)->bandwidth_isoc_reqs--;
++	} else {
++		hcd_to_bus(hcd)->bandwidth_int_reqs--;
++	}
++}
++
++/**
++ * Sets the final status of an URB and returns it to the device driver. Any
++ * required cleanup of the URB is performed.  The HCD lock should be held on
++ * entry.
++ */
++static int _complete(dwc_otg_hcd_t * hcd, void *urb_handle,
++		     dwc_otg_hcd_urb_t * dwc_otg_urb, int32_t status)
++{
++	struct urb *urb = (struct urb *)urb_handle;
++	urb_tq_entry_t *new_entry;
++	int rc = 0;
++	if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
++		DWC_PRINTF("%s: urb %p, device %d, ep %d %s, status=%d\n",
++			   __func__, urb, usb_pipedevice(urb->pipe),
++			   usb_pipeendpoint(urb->pipe),
++			   usb_pipein(urb->pipe) ? "IN" : "OUT", status);
++		if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++			int i;
++			for (i = 0; i < urb->number_of_packets; i++) {
++				DWC_PRINTF("  ISO Desc %d status: %d\n",
++					   i, urb->iso_frame_desc[i].status);
++			}
++		}
++	}
++	new_entry = DWC_ALLOC_ATOMIC(sizeof(urb_tq_entry_t));
++	urb->actual_length = dwc_otg_hcd_urb_get_actual_length(dwc_otg_urb);
++	/* Convert status value. */
++	switch (status) {
++	case -DWC_E_PROTOCOL:
++		status = -EPROTO;
++		break;
++	case -DWC_E_IN_PROGRESS:
++		status = -EINPROGRESS;
++		break;
++	case -DWC_E_PIPE:
++		status = -EPIPE;
++		break;
++	case -DWC_E_IO:
++		status = -EIO;
++		break;
++	case -DWC_E_TIMEOUT:
++		status = -ETIMEDOUT;
++		break;
++	case -DWC_E_OVERFLOW:
++		status = -EOVERFLOW;
++		break;
++	case -DWC_E_SHUTDOWN:
++		status = -ESHUTDOWN;
++		break;
++	default:
++		if (status) {
++			DWC_PRINTF("Uknown urb status %d\n", status);
++
++		}
++	}
++
++	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++		int i;
++
++		urb->error_count = dwc_otg_hcd_urb_get_error_count(dwc_otg_urb);
++		urb->actual_length = 0;
++		for (i = 0; i < urb->number_of_packets; ++i) {
++			urb->iso_frame_desc[i].actual_length =
++			    dwc_otg_hcd_urb_get_iso_desc_actual_length
++			    (dwc_otg_urb, i);
++			urb->actual_length += urb->iso_frame_desc[i].actual_length;
++			urb->iso_frame_desc[i].status =
++			    dwc_otg_hcd_urb_get_iso_desc_status(dwc_otg_urb, i);
++		}
++	}
++
++	urb->status = status;
++	urb->hcpriv = NULL;
++	if (!status) {
++		if ((urb->transfer_flags & URB_SHORT_NOT_OK) &&
++		    (urb->actual_length < urb->transfer_buffer_length)) {
++			urb->status = -EREMOTEIO;
++		}
++	}
++
++	if ((usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) ||
++	    (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
++		struct usb_host_endpoint *ep = dwc_urb_to_endpoint(urb);
++		if (ep) {
++			free_bus_bandwidth(dwc_otg_hcd_to_hcd(hcd),
++					   dwc_otg_hcd_get_ep_bandwidth(hcd,
++									ep->hcpriv),
++					   urb);
++		}
++	}
++	DWC_FREE(dwc_otg_urb);
++	if (!new_entry) {
++		DWC_ERROR("dwc_otg_hcd: complete: cannot allocate URB TQ entry\n");
++		urb->status = -EPROTO;
++		/* don't schedule the tasklet -
++		 * directly return the packet here with error. */
++#if USB_URB_EP_LINKING
++		usb_hcd_unlink_urb_from_ep(dwc_otg_hcd_to_hcd(hcd), urb);
++#endif
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++		usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb);
++#else
++		usb_hcd_giveback_urb(dwc_otg_hcd_to_hcd(hcd), urb, urb->status);
++#endif
++	} else {
++		new_entry->urb = urb;
++#if USB_URB_EP_LINKING
++		rc = usb_hcd_check_unlink_urb(dwc_otg_hcd_to_hcd(hcd), urb, urb->status);
++		if(0 == rc) {
++			usb_hcd_unlink_urb_from_ep(dwc_otg_hcd_to_hcd(hcd), urb);
++		}
++#endif
++		if(0 == rc) {
++			DWC_TAILQ_INSERT_TAIL(&hcd->completed_urb_list, new_entry,
++						urb_tq_entries);
++			DWC_TASK_HI_SCHEDULE(hcd->completion_tasklet);
++		}
++	}
++	return 0;
++}
++
++static struct dwc_otg_hcd_function_ops hcd_fops = {
++	.start = _start,
++	.disconnect = _disconnect,
++	.hub_info = _hub_info,
++	.speed = _speed,
++	.complete = _complete,
++	.get_b_hnp_enable = _get_b_hnp_enable,
++};
++
++#ifdef CONFIG_ARM64
++
++static int simfiq_irq = -1;
++
++void local_fiq_enable(void)
++{
++	if (simfiq_irq >= 0)
++		enable_irq(simfiq_irq);
++}
++
++void local_fiq_disable(void)
++{
++	if (simfiq_irq >= 0)
++		disable_irq(simfiq_irq);
++}
++
++irqreturn_t fiq_irq_handler(int irq, void *dev_id)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = (dwc_otg_hcd_t *)dev_id;
++
++	if (fiq_fsm_enable)
++		dwc_otg_fiq_fsm(dwc_otg_hcd->fiq_state, dwc_otg_hcd->core_if->core_params->host_channels);
++	else
++		dwc_otg_fiq_nop(dwc_otg_hcd->fiq_state);
++
++	return IRQ_HANDLED;
++}
++
++#else
++static struct fiq_handler fh = {
++  .name = "usb_fiq",
++};
++
++#endif
++
++static void hcd_init_fiq(void *cookie)
++{
++	dwc_otg_device_t *otg_dev = cookie;
++	dwc_otg_hcd_t *dwc_otg_hcd = otg_dev->hcd;
++#ifdef CONFIG_ARM64
++	int retval = 0;
++	int irq;
++#else
++	struct pt_regs regs;
++	int irq;
++
++	if (claim_fiq(&fh)) {
++		DWC_ERROR("Can't claim FIQ");
++		BUG();
++	}
++	DWC_WARN("FIQ on core %d", smp_processor_id());
++	DWC_WARN("FIQ ASM at %px length %d", &_dwc_otg_fiq_stub, (int)(&_dwc_otg_fiq_stub_end - &_dwc_otg_fiq_stub));
++	set_fiq_handler((void *) &_dwc_otg_fiq_stub, &_dwc_otg_fiq_stub_end - &_dwc_otg_fiq_stub);
++	memset(&regs,0,sizeof(regs));
++
++	regs.ARM_r8 = (long) dwc_otg_hcd->fiq_state;
++	if (fiq_fsm_enable) {
++		regs.ARM_r9 = dwc_otg_hcd->core_if->core_params->host_channels;
++		//regs.ARM_r10 = dwc_otg_hcd->dma;
++		regs.ARM_fp = (long) dwc_otg_fiq_fsm;
++	} else {
++		regs.ARM_fp = (long) dwc_otg_fiq_nop;
++	}
++
++	regs.ARM_sp = (long) dwc_otg_hcd->fiq_stack + (sizeof(struct fiq_stack) - 4);
++
++//		__show_regs(&regs);
++	set_fiq_regs(&regs);
++#endif
++
++	dwc_otg_hcd->fiq_state->dwc_regs_base = otg_dev->os_dep.base;
++	//Set the mphi periph to the required registers
++	dwc_otg_hcd->fiq_state->mphi_regs.base    = otg_dev->os_dep.mphi_base;
++	if (otg_dev->os_dep.use_swirq) {
++		dwc_otg_hcd->fiq_state->mphi_regs.swirq_set =
++			otg_dev->os_dep.mphi_base + 0x1f0;
++		dwc_otg_hcd->fiq_state->mphi_regs.swirq_clr =
++			otg_dev->os_dep.mphi_base + 0x1f4;
++		DWC_WARN("Fake MPHI regs_base at 0x%08x",
++			 (int)dwc_otg_hcd->fiq_state->mphi_regs.base);
++	} else {
++		dwc_otg_hcd->fiq_state->mphi_regs.ctrl =
++			otg_dev->os_dep.mphi_base + 0x4c;
++		dwc_otg_hcd->fiq_state->mphi_regs.outdda
++			= otg_dev->os_dep.mphi_base + 0x28;
++		dwc_otg_hcd->fiq_state->mphi_regs.outddb
++			= otg_dev->os_dep.mphi_base + 0x2c;
++		dwc_otg_hcd->fiq_state->mphi_regs.intstat
++			= otg_dev->os_dep.mphi_base + 0x50;
++		DWC_WARN("MPHI regs_base at %px",
++			 dwc_otg_hcd->fiq_state->mphi_regs.base);
++
++		//Enable mphi peripheral
++		writel((1<<31),dwc_otg_hcd->fiq_state->mphi_regs.ctrl);
++#ifdef DEBUG
++		if (readl(dwc_otg_hcd->fiq_state->mphi_regs.ctrl) & 0x80000000)
++			DWC_WARN("MPHI periph has been enabled");
++		else
++			DWC_WARN("MPHI periph has NOT been enabled");
++#endif
++	}
++	// Enable FIQ interrupt from USB peripheral
++#ifdef CONFIG_ARM64
++	irq = otg_dev->os_dep.fiq_num;
++
++	if (irq < 0) {
++		DWC_ERROR("Can't get SIM-FIQ irq");
++		return;
++	}
++
++	retval = request_irq(irq, fiq_irq_handler, 0, "dwc_otg_sim-fiq", dwc_otg_hcd);
++
++	if (retval < 0) {
++		DWC_ERROR("Unable to request SIM-FIQ irq\n");
++		return;
++	}
++
++	simfiq_irq = irq;
++#else
++#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER
++	irq = otg_dev->os_dep.fiq_num;
++#else
++	irq = INTERRUPT_VC_USB;
++#endif
++	if (irq < 0) {
++		DWC_ERROR("Can't get FIQ irq");
++		return;
++	}
++	/*
++	 * We could take an interrupt immediately after enabling the FIQ.
++	 * Ensure coherency of hcd->fiq_state.
++	 */
++	smp_mb();
++	enable_fiq(irq);
++	local_fiq_enable();
++#endif
++
++}
++
++/**
++ * Initializes the HCD. This function allocates memory for and initializes the
++ * static parts of the usb_hcd and dwc_otg_hcd structures. It also registers the
++ * USB bus with the core and calls the hc_driver->start() function. It returns
++ * a negative error on failure.
++ */
++int hcd_init(dwc_bus_dev_t *_dev)
++{
++	struct usb_hcd *hcd = NULL;
++	dwc_otg_hcd_t *dwc_otg_hcd = NULL;
++	dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
++	int retval = 0;
++        u64 dmamask;
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD INIT otg_dev=%p\n", otg_dev);
++
++	/* Set device flags indicating whether the HCD supports DMA. */
++	if (dwc_otg_is_dma_enable(otg_dev->core_if))
++                dmamask = DMA_BIT_MASK(32);
++        else
++                dmamask = 0;
++
++#if    defined(LM_INTERFACE) || defined(PLATFORM_INTERFACE)
++        dma_set_mask(&_dev->dev, dmamask);
++        dma_set_coherent_mask(&_dev->dev, dmamask);
++#elif  defined(PCI_INTERFACE)
++        pci_set_dma_mask(_dev, dmamask);
++        pci_set_consistent_dma_mask(_dev, dmamask);
++#endif
++
++	/*
++	 * Allocate memory for the base HCD plus the DWC OTG HCD.
++	 * Initialize the base HCD.
++	 */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
++	hcd = usb_create_hcd(&dwc_otg_hc_driver, &_dev->dev, _dev->dev.bus_id);
++#else
++	hcd = usb_create_hcd(&dwc_otg_hc_driver, &_dev->dev, dev_name(&_dev->dev));
++	hcd->has_tt = 1;
++//      hcd->uses_new_polling = 1;
++//      hcd->poll_rh = 0;
++#endif
++	if (!hcd) {
++		retval = -ENOMEM;
++		goto error1;
++	}
++
++	hcd->regs = otg_dev->os_dep.base;
++
++
++	/* Initialize the DWC OTG HCD. */
++	dwc_otg_hcd = dwc_otg_hcd_alloc_hcd();
++	if (!dwc_otg_hcd) {
++		goto error2;
++	}
++	((struct wrapper_priv_data *)(hcd->hcd_priv))->dwc_otg_hcd =
++	    dwc_otg_hcd;
++	otg_dev->hcd = dwc_otg_hcd;
++	otg_dev->hcd->otg_dev = otg_dev;
++
++#ifdef CONFIG_ARM64
++	if (dwc_otg_hcd_init(dwc_otg_hcd, otg_dev->core_if))
++		goto error2;
++
++	if (fiq_enable)
++		hcd_init_fiq(otg_dev);
++#else
++	if (dwc_otg_hcd_init(dwc_otg_hcd, otg_dev->core_if)) {
++		goto error2;
++	}
++
++	if (fiq_enable) {
++		if (num_online_cpus() > 1) {
++			/*
++			 * bcm2709: can run the FIQ on a separate core to IRQs.
++			 * Ensure driver state is visible to other cores before setting up the FIQ.
++			 */
++			smp_mb();
++			smp_call_function_single(1, hcd_init_fiq, otg_dev, 1);
++		} else {
++			smp_call_function_single(0, hcd_init_fiq, otg_dev, 1);
++		}
++	}
++#endif
++
++	hcd->self.otg_port = dwc_otg_hcd_otg_port(dwc_otg_hcd);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33) //don't support for LM(with 2.6.20.1 kernel)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) //version field absent later
++	hcd->self.otg_version = dwc_otg_get_otg_version(otg_dev->core_if);
++#endif
++	/* Don't support SG list at this point */
++	hcd->self.sg_tablesize = 0;
++#endif
++	/*
++	 * Finish generic HCD initialization and start the HCD. This function
++	 * allocates the DMA buffer pool, registers the USB bus, requests the
++	 * IRQ line, and calls hcd_start method.
++	 */
++	retval = usb_add_hcd(hcd, otg_dev->os_dep.irq_num, IRQF_SHARED);
++	if (retval < 0) {
++		goto error2;
++	}
++
++	dwc_otg_hcd_set_priv_data(dwc_otg_hcd, hcd);
++	return 0;
++
++error2:
++	usb_put_hcd(hcd);
++error1:
++	return retval;
++}
++
++/**
++ * Removes the HCD.
++ * Frees memory and resources associated with the HCD and deregisters the bus.
++ */
++void hcd_remove(dwc_bus_dev_t *_dev)
++{
++	dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
++	dwc_otg_hcd_t *dwc_otg_hcd;
++	struct usb_hcd *hcd;
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD REMOVE otg_dev=%p\n", otg_dev);
++
++	if (!otg_dev) {
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev NULL!\n", __func__);
++		return;
++	}
++
++	dwc_otg_hcd = otg_dev->hcd;
++
++	if (!dwc_otg_hcd) {
++		DWC_DEBUGPL(DBG_ANY, "%s: otg_dev->hcd NULL!\n", __func__);
++		return;
++	}
++
++	hcd = dwc_otg_hcd_to_hcd(dwc_otg_hcd);
++
++	if (!hcd) {
++		DWC_DEBUGPL(DBG_ANY,
++			    "%s: dwc_otg_hcd_to_hcd(dwc_otg_hcd) NULL!\n",
++			    __func__);
++		return;
++	}
++	usb_remove_hcd(hcd);
++	dwc_otg_hcd_set_priv_data(dwc_otg_hcd, NULL);
++	dwc_otg_hcd_remove(dwc_otg_hcd);
++	usb_put_hcd(hcd);
++}
++
++/* =========================================================================
++ *  Linux HC Driver Functions
++ * ========================================================================= */
++
++/** Initializes the DWC_otg controller and its root hub and prepares it for host
++ * mode operation. Activates the root port. Returns 0 on success and a negative
++ * error code on failure. */
++int hcd_start(struct usb_hcd *hcd)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++	struct usb_bus *bus;
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD START\n");
++	bus = hcd_to_bus(hcd);
++
++	hcd->state = HC_STATE_RUNNING;
++	if (dwc_otg_hcd_start(dwc_otg_hcd, &hcd_fops)) {
++		return 0;
++	}
++
++	/* Initialize and connect root hub if one is not already attached */
++	if (bus->root_hub) {
++		DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD Has Root Hub\n");
++		/* Inform the HUB driver to resume. */
++		usb_hcd_resume_root_hub(hcd);
++	}
++
++	return 0;
++}
++
++/**
++ * Halts the DWC_otg host mode operations in a clean manner. USB transfers are
++ * stopped.
++ */
++void hcd_stop(struct usb_hcd *hcd)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++
++	dwc_otg_hcd_stop(dwc_otg_hcd);
++}
++
++/** Returns the current frame number. */
++static int get_frame_number(struct usb_hcd *hcd)
++{
++	hprt0_data_t hprt0;
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++	hprt0.d32 = DWC_READ_REG32(dwc_otg_hcd->core_if->host_if->hprt0);
++	if (hprt0.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED)
++		return dwc_otg_hcd_get_frame_number(dwc_otg_hcd) >> 3;
++	else
++		return dwc_otg_hcd_get_frame_number(dwc_otg_hcd);
++}
++
++#ifdef DEBUG
++static void dump_urb_info(struct urb *urb, char *fn_name)
++{
++	DWC_PRINTF("%s, urb %p\n", fn_name, urb);
++	DWC_PRINTF("  Device address: %d\n", usb_pipedevice(urb->pipe));
++	DWC_PRINTF("  Endpoint: %d, %s\n", usb_pipeendpoint(urb->pipe),
++		   (usb_pipein(urb->pipe) ? "IN" : "OUT"));
++	DWC_PRINTF("  Endpoint type: %s\n", ( {
++					     char *pipetype;
++					     switch (usb_pipetype(urb->pipe)) {
++case PIPE_CONTROL:
++pipetype = "CONTROL"; break; case PIPE_BULK:
++pipetype = "BULK"; break; case PIPE_INTERRUPT:
++pipetype = "INTERRUPT"; break; case PIPE_ISOCHRONOUS:
++pipetype = "ISOCHRONOUS"; break; default:
++					     pipetype = "UNKNOWN"; break;};
++					     pipetype;}
++		   )) ;
++	DWC_PRINTF("  Speed: %s\n", ( {
++				     char *speed; switch (urb->dev->speed) {
++case USB_SPEED_HIGH:
++speed = "HIGH"; break; case USB_SPEED_FULL:
++speed = "FULL"; break; case USB_SPEED_LOW:
++speed = "LOW"; break; default:
++				     speed = "UNKNOWN"; break;};
++				     speed;}
++		   )) ;
++	DWC_PRINTF("  Max packet size: %d\n",
++		   usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)));
++	DWC_PRINTF("  Data buffer length: %d\n", urb->transfer_buffer_length);
++	DWC_PRINTF("  Transfer buffer: %p, Transfer DMA: %p\n",
++		   urb->transfer_buffer, (void *)urb->transfer_dma);
++	DWC_PRINTF("  Setup buffer: %p, Setup DMA: %p\n",
++		   urb->setup_packet, (void *)urb->setup_dma);
++	DWC_PRINTF("  Interval: %d\n", urb->interval);
++	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
++		int i;
++		for (i = 0; i < urb->number_of_packets; i++) {
++			DWC_PRINTF("  ISO Desc %d:\n", i);
++			DWC_PRINTF("    offset: %d, length %d\n",
++				   urb->iso_frame_desc[i].offset,
++				   urb->iso_frame_desc[i].length);
++		}
++	}
++}
++#endif
++
++/** Starts processing a USB transfer request specified by a USB Request Block
++ * (URB). mem_flags indicates the type of memory allocation to use while
++ * processing this URB. */
++static int dwc_otg_urb_enqueue(struct usb_hcd *hcd,
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++		       struct usb_host_endpoint *ep,
++#endif
++		       struct urb *urb, gfp_t mem_flags)
++{
++	int retval = 0;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
++	struct usb_host_endpoint *ep = urb->ep;
++#endif
++	dwc_irqflags_t irqflags;
++        void **ref_ep_hcpriv = &ep->hcpriv;
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++	dwc_otg_hcd_urb_t *dwc_otg_urb;
++	int i;
++	int alloc_bandwidth = 0;
++	uint8_t ep_type = 0;
++	uint32_t flags = 0;
++	void *buf;
++
++#ifdef DEBUG
++	if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
++		dump_urb_info(urb, "dwc_otg_urb_enqueue");
++	}
++#endif
++	if ((usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
++	    || (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) {
++		if (!dwc_otg_hcd_is_bandwidth_allocated
++		    (dwc_otg_hcd, ref_ep_hcpriv)) {
++			alloc_bandwidth = 1;
++		}
++	}
++
++	switch (usb_pipetype(urb->pipe)) {
++	case PIPE_CONTROL:
++		ep_type = USB_ENDPOINT_XFER_CONTROL;
++		break;
++	case PIPE_ISOCHRONOUS:
++		ep_type = USB_ENDPOINT_XFER_ISOC;
++		break;
++	case PIPE_BULK:
++		ep_type = USB_ENDPOINT_XFER_BULK;
++		break;
++	case PIPE_INTERRUPT:
++		ep_type = USB_ENDPOINT_XFER_INT;
++		break;
++	default:
++                DWC_WARN("Wrong EP type - %d\n", usb_pipetype(urb->pipe));
++	}
++
++        /* # of packets is often 0 - do we really need to call this then? */
++	dwc_otg_urb = dwc_otg_hcd_urb_alloc(dwc_otg_hcd,
++					    urb->number_of_packets,
++					    mem_flags == GFP_ATOMIC ? 1 : 0);
++
++	if(dwc_otg_urb == NULL)
++		return -ENOMEM;
++
++	if (!dwc_otg_urb && urb->number_of_packets)
++		return -ENOMEM;
++
++	dwc_otg_hcd_urb_set_pipeinfo(dwc_otg_urb, usb_pipedevice(urb->pipe),
++				     usb_pipeendpoint(urb->pipe), ep_type,
++				     usb_pipein(urb->pipe),
++				     usb_maxpacket(urb->dev, urb->pipe,
++						   !(usb_pipein(urb->pipe))));
++
++	buf = urb->transfer_buffer;
++	if (hcd_uses_dma(hcd) && !buf && urb->transfer_buffer_length) {
++		/*
++		 * Calculate virtual address from physical address,
++		 * because some class driver may not fill transfer_buffer.
++		 * In Buffer DMA mode virual address is used,
++		 * when handling non DWORD aligned buffers.
++		 */
++		buf = (void *)__bus_to_virt((unsigned long)urb->transfer_dma);
++		dev_warn_once(&urb->dev->dev,
++			      "USB transfer_buffer was NULL, will use __bus_to_virt(%pad)=%p\n",
++			      &urb->transfer_dma, buf);
++	}
++
++	if (!buf && urb->transfer_buffer_length) {
++		DWC_FREE(dwc_otg_urb);
++		DWC_ERROR("transfer_buffer is NULL in PIO mode or both "
++			   "transfer_buffer and transfer_dma are NULL in DMA mode\n");
++		return -EINVAL;
++	}
++
++	if (!(urb->transfer_flags & URB_NO_INTERRUPT))
++		flags |= URB_GIVEBACK_ASAP;
++	if (urb->transfer_flags & URB_ZERO_PACKET)
++		flags |= URB_SEND_ZERO_PACKET;
++
++	dwc_otg_hcd_urb_set_params(dwc_otg_urb, urb, buf,
++				   urb->transfer_dma,
++				   urb->transfer_buffer_length,
++				   urb->setup_packet,
++				   urb->setup_dma, flags, urb->interval);
++
++	for (i = 0; i < urb->number_of_packets; ++i) {
++		dwc_otg_hcd_urb_set_iso_desc_params(dwc_otg_urb, i,
++						    urb->
++						    iso_frame_desc[i].offset,
++						    urb->
++						    iso_frame_desc[i].length);
++	}
++
++	DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &irqflags);
++	urb->hcpriv = dwc_otg_urb;
++#if USB_URB_EP_LINKING
++	retval = usb_hcd_link_urb_to_ep(hcd, urb);
++	if (0 == retval)
++#endif
++	{
++		retval = dwc_otg_hcd_urb_enqueue(dwc_otg_hcd, dwc_otg_urb,
++						/*(dwc_otg_qh_t **)*/
++						ref_ep_hcpriv, 1);
++		if (0 == retval) {
++			if (alloc_bandwidth) {
++				allocate_bus_bandwidth(hcd,
++						dwc_otg_hcd_get_ep_bandwidth(
++							dwc_otg_hcd, *ref_ep_hcpriv),
++						urb);
++			}
++		} else {
++			DWC_DEBUGPL(DBG_HCD, "DWC OTG dwc_otg_hcd_urb_enqueue failed rc %d\n", retval);
++#if USB_URB_EP_LINKING
++			usb_hcd_unlink_urb_from_ep(hcd, urb);
++#endif
++			DWC_FREE(dwc_otg_urb);
++			urb->hcpriv = NULL;
++			if (retval == -DWC_E_NO_DEVICE)
++				retval = -ENODEV;
++		}
++	}
++#if USB_URB_EP_LINKING
++	else
++	{
++		DWC_FREE(dwc_otg_urb);
++		urb->hcpriv = NULL;
++	}
++#endif
++	DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, irqflags);
++	return retval;
++}
++
++/** Aborts/cancels a USB transfer request. Always returns 0 to indicate
++ * success.  */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
++#else
++static int dwc_otg_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
++#endif
++{
++	dwc_irqflags_t flags;
++	dwc_otg_hcd_t *dwc_otg_hcd;
++        int rc;
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue\n");
++
++	dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++
++#ifdef DEBUG
++	if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
++		dump_urb_info(urb, "dwc_otg_urb_dequeue");
++	}
++#endif
++
++	DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags);
++	rc = usb_hcd_check_unlink_urb(hcd, urb, status);
++	if (0 == rc) {
++		if(urb->hcpriv != NULL) {
++	                dwc_otg_hcd_urb_dequeue(dwc_otg_hcd,
++	                                    (dwc_otg_hcd_urb_t *)urb->hcpriv);
++
++		        DWC_FREE(urb->hcpriv);
++			urb->hcpriv = NULL;
++		}
++        }
++
++        if (0 == rc) {
++		/* Higher layer software sets URB status. */
++#if USB_URB_EP_LINKING
++                usb_hcd_unlink_urb_from_ep(hcd, urb);
++#endif
++		DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags);
++
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++                usb_hcd_giveback_urb(hcd, urb);
++#else
++                usb_hcd_giveback_urb(hcd, urb, status);
++#endif
++                if (CHK_DEBUG_LEVEL(DBG_HCDV | DBG_HCD_URB)) {
++                        DWC_PRINTF("Called usb_hcd_giveback_urb() \n");
++                        DWC_PRINTF("  1urb->status = %d\n", urb->status);
++                }
++                DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue OK\n");
++        } else {
++		DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags);
++                DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD URB Dequeue failed - rc %d\n",
++                            rc);
++        }
++
++	return rc;
++}
++
++/* Frees resources in the DWC_otg controller related to a given endpoint. Also
++ * clears state in the HCD related to the endpoint. Any URBs for the endpoint
++ * must already be dequeued. */
++static void endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++
++	DWC_DEBUGPL(DBG_HCD,
++		    "DWC OTG HCD EP DISABLE: _bEndpointAddress=0x%02x, "
++		    "endpoint=%d\n", ep->desc.bEndpointAddress,
++		    dwc_ep_addr_to_endpoint(ep->desc.bEndpointAddress));
++	dwc_otg_hcd_endpoint_disable(dwc_otg_hcd, ep->hcpriv, 250);
++	ep->hcpriv = NULL;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
++/* Resets endpoint specific parameter values, in current version used to reset
++ * the data toggle(as a WA). This function can be called from usb_clear_halt routine */
++static void endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
++{
++	dwc_irqflags_t flags;
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP RESET: Endpoint Num=0x%02d\n", epnum);
++
++	DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags);
++	if (ep->hcpriv) {
++		dwc_otg_hcd_endpoint_reset(dwc_otg_hcd, ep->hcpriv);
++	}
++	DWC_SPINUNLOCK_IRQRESTORE(dwc_otg_hcd->lock, flags);
++}
++#endif
++
++/** Handles host mode interrupts for the DWC_otg controller. Returns IRQ_NONE if
++ * there was no interrupt to handle. Returns IRQ_HANDLED if there was a valid
++ * interrupt.
++ *
++ * This function is called by the USB core when an interrupt occurs */
++static irqreturn_t dwc_otg_hcd_irq(struct usb_hcd *hcd)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++	int32_t retval = dwc_otg_hcd_handle_intr(dwc_otg_hcd);
++	if (retval != 0) {
++		S3C2410X_CLEAR_EINTPEND();
++	}
++	return IRQ_RETVAL(retval);
++}
++
++/** Creates Status Change bitmap for the root hub and root port. The bitmap is
++ * returned in buf. Bit 0 is the status change indicator for the root hub. Bit 1
++ * is the status change indicator for the single root port. Returns 1 if either
++ * change indicator is 1, otherwise returns 0. */
++int hub_status_data(struct usb_hcd *hcd, char *buf)
++{
++	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
++
++	buf[0] = 0;
++	buf[0] |= (dwc_otg_hcd_is_status_changed(dwc_otg_hcd, 1)) << 1;
++
++	return (buf[0] != 0);
++}
++
++/** Handles hub class-specific requests. */
++int hub_control(struct usb_hcd *hcd,
++		u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength)
++{
++	int retval;
++
++	retval = dwc_otg_hcd_hub_control(hcd_to_dwc_otg_hcd(hcd),
++					 typeReq, wValue, wIndex, buf, wLength);
++
++	switch (retval) {
++	case -DWC_E_INVALID:
++		retval = -EINVAL;
++		break;
++	}
++
++	return retval;
++}
++
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+@@ -0,0 +1,970 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_hcd_queue.c $
++ * $Revision: #44 $
++ * $Date: 2011/10/26 $
++ * $Change: 1873028 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_DEVICE_ONLY
++
++/**
++ * @file
++ *
++ * This file contains the functions to manage Queue Heads and Queue
++ * Transfer Descriptors.
++ */
++
++#include "dwc_otg_hcd.h"
++#include "dwc_otg_regs.h"
++
++extern bool microframe_schedule;
++extern unsigned short int_ep_interval_min;
++
++/**
++ * Free each QTD in the QH's QTD-list then free the QH.  QH should already be
++ * removed from a list.  QTD list should already be empty if called from URB
++ * Dequeue.
++ *
++ * @param hcd HCD instance.
++ * @param qh The QH to free.
++ */
++void dwc_otg_hcd_qh_free(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	dwc_otg_qtd_t *qtd, *qtd_tmp;
++	dwc_irqflags_t flags;
++	uint32_t buf_size = 0;
++	uint8_t *align_buf_virt = NULL;
++	dwc_dma_t align_buf_dma;
++	struct device *dev = dwc_otg_hcd_to_dev(hcd);
++
++	/* Free each QTD in the QTD list */
++	DWC_SPINLOCK_IRQSAVE(hcd->lock, &flags);
++	DWC_CIRCLEQ_FOREACH_SAFE(qtd, qtd_tmp, &qh->qtd_list, qtd_list_entry) {
++		DWC_CIRCLEQ_REMOVE(&qh->qtd_list, qtd, qtd_list_entry);
++		dwc_otg_hcd_qtd_free(qtd);
++	}
++
++	if (hcd->core_if->dma_desc_enable) {
++		dwc_otg_hcd_qh_free_ddma(hcd, qh);
++	} else if (qh->dw_align_buf) {
++		if (qh->ep_type == UE_ISOCHRONOUS) {
++			buf_size = 4096;
++		} else {
++			buf_size = hcd->core_if->core_params->max_transfer_size;
++		}
++		align_buf_virt = qh->dw_align_buf;
++		align_buf_dma = qh->dw_align_buf_dma;
++	}
++
++	DWC_FREE(qh);
++	DWC_SPINUNLOCK_IRQRESTORE(hcd->lock, flags);
++	if (align_buf_virt)
++		DWC_DMA_FREE(dev, buf_size, align_buf_virt, align_buf_dma);
++	return;
++}
++
++#define BitStuffTime(bytecount)  ((8 * 7* bytecount) / 6)
++#define HS_HOST_DELAY		5	/* nanoseconds */
++#define FS_LS_HOST_DELAY	1000	/* nanoseconds */
++#define HUB_LS_SETUP		333	/* nanoseconds */
++#define NS_TO_US(ns)		((ns + 500) / 1000)
++				/* convert & round nanoseconds to microseconds */
++
++static uint32_t calc_bus_time(int speed, int is_in, int is_isoc, int bytecount)
++{
++	unsigned long retval;
++
++	switch (speed) {
++	case USB_SPEED_HIGH:
++		if (is_isoc) {
++			retval =
++			    ((38 * 8 * 2083) +
++			     (2083 * (3 + BitStuffTime(bytecount)))) / 1000 +
++			    HS_HOST_DELAY;
++		} else {
++			retval =
++			    ((55 * 8 * 2083) +
++			     (2083 * (3 + BitStuffTime(bytecount)))) / 1000 +
++			    HS_HOST_DELAY;
++		}
++		break;
++	case USB_SPEED_FULL:
++		if (is_isoc) {
++			retval =
++			    (8354 * (31 + 10 * BitStuffTime(bytecount))) / 1000;
++			if (is_in) {
++				retval = 7268 + FS_LS_HOST_DELAY + retval;
++			} else {
++				retval = 6265 + FS_LS_HOST_DELAY + retval;
++			}
++		} else {
++			retval =
++			    (8354 * (31 + 10 * BitStuffTime(bytecount))) / 1000;
++			retval = 9107 + FS_LS_HOST_DELAY + retval;
++		}
++		break;
++	case USB_SPEED_LOW:
++		if (is_in) {
++			retval =
++			    (67667 * (31 + 10 * BitStuffTime(bytecount))) /
++			    1000;
++			retval =
++			    64060 + (2 * HUB_LS_SETUP) + FS_LS_HOST_DELAY +
++			    retval;
++		} else {
++			retval =
++			    (66700 * (31 + 10 * BitStuffTime(bytecount))) /
++			    1000;
++			retval =
++			    64107 + (2 * HUB_LS_SETUP) + FS_LS_HOST_DELAY +
++			    retval;
++		}
++		break;
++	default:
++		DWC_WARN("Unknown device speed\n");
++		retval = -1;
++	}
++
++	return NS_TO_US(retval);
++}
++
++/**
++ * Initializes a QH structure.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh  The QH to init.
++ * @param urb Holds the information about the device/endpoint that we need
++ * 	      to initialize the QH.
++ */
++#define SCHEDULE_SLOP 10
++void qh_init(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh, dwc_otg_hcd_urb_t * urb)
++{
++	char *speed, *type;
++	int dev_speed;
++	uint32_t hub_addr, hub_port;
++	hprt0_data_t hprt;
++
++	dwc_memset(qh, 0, sizeof(dwc_otg_qh_t));
++	hprt.d32 = DWC_READ_REG32(hcd->core_if->host_if->hprt0);
++
++	/* Initialize QH */
++	qh->ep_type = dwc_otg_hcd_get_pipe_type(&urb->pipe_info);
++	qh->ep_is_in = dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? 1 : 0;
++
++	qh->data_toggle = DWC_OTG_HC_PID_DATA0;
++	qh->maxp = dwc_otg_hcd_get_mps(&urb->pipe_info);
++	DWC_CIRCLEQ_INIT(&qh->qtd_list);
++	DWC_LIST_INIT(&qh->qh_list_entry);
++	qh->channel = NULL;
++
++	/* FS/LS Enpoint on HS Hub
++	 * NOT virtual root hub */
++	dev_speed = hcd->fops->speed(hcd, urb->priv);
++
++	hcd->fops->hub_info(hcd, urb->priv, &hub_addr, &hub_port);
++	qh->do_split = 0;
++	if (microframe_schedule)
++		qh->speed = dev_speed;
++
++	qh->nak_frame = 0xffff;
++
++	if (hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED &&
++			dev_speed != USB_SPEED_HIGH) {
++		DWC_DEBUGPL(DBG_HCD,
++			    "QH init: EP %d: TT found at hub addr %d, for port %d\n",
++			    dwc_otg_hcd_get_ep_num(&urb->pipe_info), hub_addr,
++			    hub_port);
++		qh->do_split = 1;
++		qh->skip_count = 0;
++	}
++
++	if (qh->ep_type == UE_INTERRUPT || qh->ep_type == UE_ISOCHRONOUS) {
++		/* Compute scheduling parameters once and save them. */
++
++		/** @todo Account for split transfers in the bus time. */
++		int bytecount =
++		    dwc_hb_mult(qh->maxp) * dwc_max_packet(qh->maxp);
++
++		qh->usecs =
++		    calc_bus_time((qh->do_split ? USB_SPEED_HIGH : dev_speed),
++				  qh->ep_is_in, (qh->ep_type == UE_ISOCHRONOUS),
++				  bytecount);
++		/* Start in a slightly future (micro)frame. */
++		qh->sched_frame = dwc_frame_num_inc(hcd->frame_number,
++						    SCHEDULE_SLOP);
++		qh->interval = urb->interval;
++
++		if (hprt.b.prtspd == DWC_HPRT0_PRTSPD_HIGH_SPEED) {
++			if (dev_speed == USB_SPEED_LOW ||
++					dev_speed == USB_SPEED_FULL) {
++				qh->interval *= 8;
++				qh->sched_frame |= 0x7;
++				qh->start_split_frame = qh->sched_frame;
++			} else if (int_ep_interval_min >= 2 &&
++					qh->interval < int_ep_interval_min &&
++					qh->ep_type == UE_INTERRUPT) {
++				qh->interval = int_ep_interval_min;
++			}
++		}
++	}
++
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD QH Initialized\n");
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH  - qh = %p\n", qh);
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH  - Device Address = %d\n",
++		    dwc_otg_hcd_get_dev_addr(&urb->pipe_info));
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH  - Endpoint %d, %s\n",
++		    dwc_otg_hcd_get_ep_num(&urb->pipe_info),
++		    dwc_otg_hcd_is_pipe_in(&urb->pipe_info) ? "IN" : "OUT");
++	switch (dev_speed) {
++	case USB_SPEED_LOW:
++		qh->dev_speed = DWC_OTG_EP_SPEED_LOW;
++		speed = "low";
++		break;
++	case USB_SPEED_FULL:
++		qh->dev_speed = DWC_OTG_EP_SPEED_FULL;
++		speed = "full";
++		break;
++	case USB_SPEED_HIGH:
++		qh->dev_speed = DWC_OTG_EP_SPEED_HIGH;
++		speed = "high";
++		break;
++	default:
++		speed = "?";
++		break;
++	}
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH  - Speed = %s\n", speed);
++
++	switch (qh->ep_type) {
++	case UE_ISOCHRONOUS:
++		type = "isochronous";
++		break;
++	case UE_INTERRUPT:
++		type = "interrupt";
++		break;
++	case UE_CONTROL:
++		type = "control";
++		break;
++	case UE_BULK:
++		type = "bulk";
++		break;
++	default:
++		type = "?";
++		break;
++	}
++
++	DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH  - Type = %s\n", type);
++
++#ifdef DEBUG
++	if (qh->ep_type == UE_INTERRUPT) {
++		DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - usecs = %d\n",
++			    qh->usecs);
++		DWC_DEBUGPL(DBG_HCDV, "DWC OTG HCD QH - interval = %d\n",
++			    qh->interval);
++	}
++#endif
++
++}
++
++/**
++ * This function allocates and initializes a QH.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param urb Holds the information about the device/endpoint that we need
++ * 	      to initialize the QH.
++ * @param atomic_alloc Flag to do atomic allocation if needed
++ *
++ * @return Returns pointer to the newly allocated QH, or NULL on error. */
++dwc_otg_qh_t *dwc_otg_hcd_qh_create(dwc_otg_hcd_t * hcd,
++				    dwc_otg_hcd_urb_t * urb, int atomic_alloc)
++{
++	dwc_otg_qh_t *qh;
++
++	/* Allocate memory */
++	/** @todo add memflags argument */
++	qh = dwc_otg_hcd_qh_alloc(atomic_alloc);
++	if (qh == NULL) {
++		DWC_ERROR("qh allocation failed");
++		return NULL;
++	}
++
++	qh_init(hcd, qh, urb);
++
++	if (hcd->core_if->dma_desc_enable
++	    && (dwc_otg_hcd_qh_init_ddma(hcd, qh) < 0)) {
++		dwc_otg_hcd_qh_free(hcd, qh);
++		return NULL;
++	}
++
++	return qh;
++}
++
++/* microframe_schedule=0 start */
++
++/**
++ * Checks that a channel is available for a periodic transfer.
++ *
++ * @return 0 if successful, negative error code otherise.
++ */
++static int periodic_channel_available(dwc_otg_hcd_t * hcd)
++{
++	/*
++	 * Currently assuming that there is a dedicated host channnel for each
++	 * periodic transaction plus at least one host channel for
++	 * non-periodic transactions.
++	 */
++	int status;
++	int num_channels;
++
++	num_channels = hcd->core_if->core_params->host_channels;
++	if ((hcd->periodic_channels + hcd->non_periodic_channels < num_channels)
++	    && (hcd->periodic_channels < num_channels - 1)) {
++		status = 0;
++	} else {
++		DWC_INFO("%s: Total channels: %d, Periodic: %d, Non-periodic: %d\n",
++			__func__, num_channels, hcd->periodic_channels, hcd->non_periodic_channels);	//NOTICE
++		status = -DWC_E_NO_SPACE;
++	}
++
++	return status;
++}
++
++/**
++ * Checks that there is sufficient bandwidth for the specified QH in the
++ * periodic schedule. For simplicity, this calculation assumes that all the
++ * transfers in the periodic schedule may occur in the same (micro)frame.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh QH containing periodic bandwidth required.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++static int check_periodic_bandwidth(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	int status;
++	int16_t max_claimed_usecs;
++
++	status = 0;
++
++	if ((qh->dev_speed == DWC_OTG_EP_SPEED_HIGH) || qh->do_split) {
++		/*
++		 * High speed mode.
++		 * Max periodic usecs is 80% x 125 usec = 100 usec.
++		 */
++
++		max_claimed_usecs = 100 - qh->usecs;
++	} else {
++		/*
++		 * Full speed mode.
++		 * Max periodic usecs is 90% x 1000 usec = 900 usec.
++		 */
++		max_claimed_usecs = 900 - qh->usecs;
++	}
++
++	if (hcd->periodic_usecs > max_claimed_usecs) {
++		DWC_INFO("%s: already claimed usecs %d, required usecs %d\n", __func__, hcd->periodic_usecs, qh->usecs);	//NOTICE
++		status = -DWC_E_NO_SPACE;
++	}
++
++	return status;
++}
++
++/* microframe_schedule=0 end */
++
++/**
++ * Microframe scheduler
++ * track the total use in hcd->frame_usecs
++ * keep each qh use in qh->frame_usecs
++ * when surrendering the qh then donate the time back
++ */
++const unsigned short max_uframe_usecs[]={ 100, 100, 100, 100, 100, 100, 30, 0 };
++
++/*
++ * called from dwc_otg_hcd.c:dwc_otg_hcd_init
++ */
++void init_hcd_usecs(dwc_otg_hcd_t *_hcd)
++{
++	int i;
++	if (_hcd->flags.b.port_speed == DWC_HPRT0_PRTSPD_FULL_SPEED) {
++		_hcd->frame_usecs[0] = 900;
++		for (i = 1; i < 8; i++)
++			_hcd->frame_usecs[i] = 0;
++	} else {
++		for (i = 0; i < 8; i++)
++			_hcd->frame_usecs[i] = max_uframe_usecs[i];
++	}
++}
++
++static int find_single_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
++{
++	int i;
++	unsigned short utime;
++	int t_left;
++	int ret;
++	int done;
++
++	ret = -1;
++	utime = _qh->usecs;
++	t_left = utime;
++	i = 0;
++	done = 0;
++	while (done == 0) {
++		/* At the start _hcd->frame_usecs[i] = max_uframe_usecs[i]; */
++		if (utime <= _hcd->frame_usecs[i]) {
++			_hcd->frame_usecs[i] -= utime;
++			_qh->frame_usecs[i] += utime;
++			t_left -= utime;
++			ret = i;
++			done = 1;
++			return ret;
++		} else {
++			i++;
++			if (i == 8) {
++				done = 1;
++				ret = -1;
++			}
++		}
++	}
++	return ret;
++ }
++
++/*
++ * use this for FS apps that can span multiple uframes
++  */
++static int find_multi_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
++{
++	int i;
++	int j;
++	unsigned short utime;
++	int t_left;
++	int ret;
++	int done;
++	unsigned short xtime;
++
++	ret = -1;
++	utime = _qh->usecs;
++	t_left = utime;
++	i = 0;
++	done = 0;
++loop:
++	while (done == 0) {
++		if(_hcd->frame_usecs[i] <= 0) {
++			i++;
++			if (i == 8) {
++				done = 1;
++				ret = -1;
++			}
++			goto loop;
++		}
++
++		/*
++		 * we need n consecutive slots
++		 * so use j as a start slot j plus j+1 must be enough time (for now)
++		 */
++		xtime= _hcd->frame_usecs[i];
++		for (j = i+1 ; j < 8 ; j++ ) {
++                       /*
++                        * if we add this frame remaining time to xtime we may
++                        * be OK, if not we need to test j for a complete frame
++                        */
++                       if ((xtime+_hcd->frame_usecs[j]) < utime) {
++                               if (_hcd->frame_usecs[j] < max_uframe_usecs[j]) {
++                                       j = 8;
++                                       ret = -1;
++                                       continue;
++                               }
++                       }
++                       if (xtime >= utime) {
++                               ret = i;
++                               j = 8;  /* stop loop with a good value ret */
++                               continue;
++                       }
++                       /* add the frame time to x time */
++                       xtime += _hcd->frame_usecs[j];
++		       /* we must have a fully available next frame or break */
++		       if ((xtime < utime)
++				       && (_hcd->frame_usecs[j] == max_uframe_usecs[j])) {
++			       ret = -1;
++			       j = 8;  /* stop loop with a bad value ret */
++			       continue;
++		       }
++		}
++		if (ret >= 0) {
++			t_left = utime;
++			for (j = i; (t_left>0) && (j < 8); j++ ) {
++				t_left -= _hcd->frame_usecs[j];
++				if ( t_left <= 0 ) {
++					_qh->frame_usecs[j] += _hcd->frame_usecs[j] + t_left;
++					_hcd->frame_usecs[j]= -t_left;
++					ret = i;
++					done = 1;
++				} else {
++					_qh->frame_usecs[j] += _hcd->frame_usecs[j];
++					_hcd->frame_usecs[j] = 0;
++				}
++			}
++		} else {
++			i++;
++			if (i == 8) {
++				done = 1;
++				ret = -1;
++			}
++		}
++	}
++	return ret;
++}
++
++static int find_uframe(dwc_otg_hcd_t * _hcd, dwc_otg_qh_t * _qh)
++{
++	int ret;
++	ret = -1;
++
++	if (_qh->speed == USB_SPEED_HIGH ||
++		_hcd->flags.b.port_speed == DWC_HPRT0_PRTSPD_FULL_SPEED) {
++		/* if this is a hs transaction we need a full frame - or account for FS usecs */
++		ret = find_single_uframe(_hcd, _qh);
++	} else {
++		/* if this is a fs transaction we may need a sequence of frames */
++		ret = find_multi_uframe(_hcd, _qh);
++	}
++	return ret;
++}
++
++/**
++ * Checks that the max transfer size allowed in a host channel is large enough
++ * to handle the maximum data transfer in a single (micro)frame for a periodic
++ * transfer.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh QH for a periodic endpoint.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++static int check_max_xfer_size(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	int status;
++	uint32_t max_xfer_size;
++	uint32_t max_channel_xfer_size;
++
++	status = 0;
++
++	max_xfer_size = dwc_max_packet(qh->maxp) * dwc_hb_mult(qh->maxp);
++	max_channel_xfer_size = hcd->core_if->core_params->max_transfer_size;
++
++	if (max_xfer_size > max_channel_xfer_size) {
++		DWC_INFO("%s: Periodic xfer length %d > " "max xfer length for channel %d\n",
++				__func__, max_xfer_size, max_channel_xfer_size);	//NOTICE
++		status = -DWC_E_NO_SPACE;
++	}
++
++	return status;
++}
++
++
++
++/**
++ * Schedules an interrupt or isochronous transfer in the periodic schedule.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh QH for the periodic transfer. The QH should already contain the
++ * scheduling information.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++static int schedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	int status = 0;
++
++	if (microframe_schedule) {
++		int frame;
++		status = find_uframe(hcd, qh);
++		frame = -1;
++		if (status == 0) {
++			frame = 7;
++		} else {
++			if (status > 0 )
++				frame = status-1;
++		}
++
++		/* Set the new frame up */
++		if (frame > -1) {
++			qh->sched_frame &= ~0x7;
++			qh->sched_frame |= (frame & 7);
++		}
++
++		if (status != -1)
++			status = 0;
++	} else {
++		status = periodic_channel_available(hcd);
++		if (status) {
++			DWC_INFO("%s: No host channel available for periodic " "transfer.\n", __func__);	//NOTICE
++			return status;
++		}
++
++		status = check_periodic_bandwidth(hcd, qh);
++	}
++	if (status) {
++		DWC_INFO("%s: Insufficient periodic bandwidth for "
++			    "periodic transfer.\n", __func__);
++		return -DWC_E_NO_SPACE;
++	}
++	status = check_max_xfer_size(hcd, qh);
++	if (status) {
++		DWC_INFO("%s: Channel max transfer size too small "
++			    "for periodic transfer.\n", __func__);
++		return status;
++	}
++
++	if (hcd->core_if->dma_desc_enable) {
++		/* Don't rely on SOF and start in ready schedule */
++		DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_ready, &qh->qh_list_entry);
++	}
++	else {
++		if(fiq_enable && (DWC_LIST_EMPTY(&hcd->periodic_sched_inactive) || dwc_frame_num_le(qh->sched_frame, hcd->fiq_state->next_sched_frame)))
++		{
++			hcd->fiq_state->next_sched_frame = qh->sched_frame;
++
++		}
++		/* Always start in the inactive schedule. */
++		DWC_LIST_INSERT_TAIL(&hcd->periodic_sched_inactive, &qh->qh_list_entry);
++	}
++
++	if (!microframe_schedule) {
++		/* Reserve the periodic channel. */
++		hcd->periodic_channels++;
++	}
++
++	/* Update claimed usecs per (micro)frame. */
++	hcd->periodic_usecs += qh->usecs;
++
++	return status;
++}
++
++
++/**
++ * This function adds a QH to either the non periodic or periodic schedule if
++ * it is not already in the schedule. If the QH is already in the schedule, no
++ * action is taken.
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	int status = 0;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	if (!DWC_LIST_EMPTY(&qh->qh_list_entry)) {
++		/* QH already in a schedule. */
++		return status;
++	}
++
++	/* Add the new QH to the appropriate schedule */
++	if (dwc_qh_is_non_per(qh)) {
++		/* Always start in the inactive schedule. */
++		DWC_LIST_INSERT_TAIL(&hcd->non_periodic_sched_inactive,
++				     &qh->qh_list_entry);
++		//hcd->fiq_state->kick_np_queues = 1;
++	} else {
++		status = schedule_periodic(hcd, qh);
++		if ( !hcd->periodic_qh_count ) {
++			intr_mask.b.sofintr = 1;
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, intr_mask.d32);
++			}
++		}
++		hcd->periodic_qh_count++;
++	}
++
++	return status;
++}
++
++/**
++ * Removes an interrupt or isochronous transfer from the periodic schedule.
++ *
++ * @param hcd The HCD state structure for the DWC OTG controller.
++ * @param qh QH for the periodic transfer.
++ */
++static void deschedule_periodic(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	int i;
++	DWC_LIST_REMOVE_INIT(&qh->qh_list_entry);
++
++	/* Update claimed usecs per (micro)frame. */
++	hcd->periodic_usecs -= qh->usecs;
++
++	if (!microframe_schedule) {
++		/* Release the periodic channel reservation. */
++		hcd->periodic_channels--;
++	} else {
++		for (i = 0; i < 8; i++) {
++			hcd->frame_usecs[i] += qh->frame_usecs[i];
++			qh->frame_usecs[i] = 0;
++		}
++	}
++}
++
++/**
++ * Removes a QH from either the non-periodic or periodic schedule.  Memory is
++ * not freed.
++ *
++ * @param hcd The HCD state structure.
++ * @param qh QH to remove from schedule. */
++void dwc_otg_hcd_qh_remove(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh)
++{
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	if (DWC_LIST_EMPTY(&qh->qh_list_entry)) {
++		/* QH is not in a schedule. */
++		return;
++	}
++
++	if (dwc_qh_is_non_per(qh)) {
++		if (hcd->non_periodic_qh_ptr == &qh->qh_list_entry) {
++			hcd->non_periodic_qh_ptr =
++			    hcd->non_periodic_qh_ptr->next;
++		}
++		DWC_LIST_REMOVE_INIT(&qh->qh_list_entry);
++		//if (!DWC_LIST_EMPTY(&hcd->non_periodic_sched_inactive))
++		//	hcd->fiq_state->kick_np_queues = 1;
++	} else {
++		deschedule_periodic(hcd, qh);
++		hcd->periodic_qh_count--;
++		if( !hcd->periodic_qh_count && !fiq_fsm_enable ) {
++			intr_mask.b.sofintr = 1;
++			if (fiq_enable) {
++				local_fiq_disable();
++				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, 0);
++				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
++				local_fiq_enable();
++			} else {
++				DWC_MODIFY_REG32(&hcd->core_if->core_global_regs->gintmsk, intr_mask.d32, 0);
++			}
++		}
++	}
++}
++
++/**
++ * Deactivates a QH. For non-periodic QHs, removes the QH from the active
++ * non-periodic schedule. The QH is added to the inactive non-periodic
++ * schedule if any QTDs are still attached to the QH.
++ *
++ * For periodic QHs, the QH is removed from the periodic queued schedule. If
++ * there are any QTDs still attached to the QH, the QH is added to either the
++ * periodic inactive schedule or the periodic ready schedule and its next
++ * scheduled frame is calculated. The QH is placed in the ready schedule if
++ * the scheduled frame has been reached already. Otherwise it's placed in the
++ * inactive schedule. If there are no QTDs attached to the QH, the QH is
++ * completely removed from the periodic schedule.
++ */
++void dwc_otg_hcd_qh_deactivate(dwc_otg_hcd_t * hcd, dwc_otg_qh_t * qh,
++			       int sched_next_periodic_split)
++{
++	if (dwc_qh_is_non_per(qh)) {
++		dwc_otg_hcd_qh_remove(hcd, qh);
++		if (!DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) {
++			/* Add back to inactive non-periodic schedule. */
++			dwc_otg_hcd_qh_add(hcd, qh);
++			//hcd->fiq_state->kick_np_queues = 1;
++		} else {
++			if(nak_holdoff && qh->do_split) {
++				qh->nak_frame = 0xFFFF;
++			}
++		}
++	} else {
++		uint16_t frame_number = dwc_otg_hcd_get_frame_number(hcd);
++
++		if (qh->do_split) {
++			/* Schedule the next continuing periodic split transfer */
++			if (sched_next_periodic_split) {
++
++				qh->sched_frame = frame_number;
++
++				if (dwc_frame_num_le(frame_number,
++						     dwc_frame_num_inc
++						     (qh->start_split_frame,
++						      1))) {
++					/*
++					 * Allow one frame to elapse after start
++					 * split microframe before scheduling
++					 * complete split, but DONT if we are
++					 * doing the next start split in the
++					 * same frame for an ISOC out.
++					 */
++					if ((qh->ep_type != UE_ISOCHRONOUS) ||
++					    (qh->ep_is_in != 0)) {
++						qh->sched_frame =
++						    dwc_frame_num_inc(qh->sched_frame, 1);
++					}
++				}
++			} else {
++				qh->sched_frame =
++				    dwc_frame_num_inc(qh->start_split_frame,
++						      qh->interval);
++				if (dwc_frame_num_le
++				    (qh->sched_frame, frame_number)) {
++					qh->sched_frame = frame_number;
++				}
++				qh->sched_frame |= 0x7;
++				qh->start_split_frame = qh->sched_frame;
++			}
++		} else {
++			qh->sched_frame =
++			    dwc_frame_num_inc(qh->sched_frame, qh->interval);
++			if (dwc_frame_num_le(qh->sched_frame, frame_number)) {
++				qh->sched_frame = frame_number;
++			}
++		}
++
++		if (DWC_CIRCLEQ_EMPTY(&qh->qtd_list)) {
++			dwc_otg_hcd_qh_remove(hcd, qh);
++		} else {
++			/*
++			 * Remove from periodic_sched_queued and move to
++			 * appropriate queue.
++			 */
++			if ((microframe_schedule && dwc_frame_num_le(qh->sched_frame, frame_number)) ||
++			(!microframe_schedule && qh->sched_frame == frame_number)) {
++				DWC_LIST_MOVE_HEAD(&hcd->periodic_sched_ready,
++						   &qh->qh_list_entry);
++			} else {
++				if(fiq_enable && !dwc_frame_num_le(hcd->fiq_state->next_sched_frame, qh->sched_frame))
++				{
++					hcd->fiq_state->next_sched_frame = qh->sched_frame;
++				}
++
++				DWC_LIST_MOVE_HEAD
++				    (&hcd->periodic_sched_inactive,
++				     &qh->qh_list_entry);
++			}
++		}
++	}
++}
++
++/**
++ * This function allocates and initializes a QTD.
++ *
++ * @param urb The URB to create a QTD from.  Each URB-QTD pair will end up
++ * 	      pointing to each other so each pair should have a unique correlation.
++ * @param atomic_alloc Flag to do atomic alloc if needed
++ *
++ * @return Returns pointer to the newly allocated QTD, or NULL on error. */
++dwc_otg_qtd_t *dwc_otg_hcd_qtd_create(dwc_otg_hcd_urb_t * urb, int atomic_alloc)
++{
++	dwc_otg_qtd_t *qtd;
++
++	qtd = dwc_otg_hcd_qtd_alloc(atomic_alloc);
++	if (qtd == NULL) {
++		return NULL;
++	}
++
++	dwc_otg_hcd_qtd_init(qtd, urb);
++	return qtd;
++}
++
++/**
++ * Initializes a QTD structure.
++ *
++ * @param qtd The QTD to initialize.
++ * @param urb The URB to use for initialization.  */
++void dwc_otg_hcd_qtd_init(dwc_otg_qtd_t * qtd, dwc_otg_hcd_urb_t * urb)
++{
++	dwc_memset(qtd, 0, sizeof(dwc_otg_qtd_t));
++	qtd->urb = urb;
++	if (dwc_otg_hcd_get_pipe_type(&urb->pipe_info) == UE_CONTROL) {
++		/*
++		 * The only time the QTD data toggle is used is on the data
++		 * phase of control transfers. This phase always starts with
++		 * DATA1.
++		 */
++		qtd->data_toggle = DWC_OTG_HC_PID_DATA1;
++		qtd->control_phase = DWC_OTG_CONTROL_SETUP;
++	}
++
++	/* start split */
++	qtd->complete_split = 0;
++	qtd->isoc_split_pos = DWC_HCSPLIT_XACTPOS_ALL;
++	qtd->isoc_split_offset = 0;
++	qtd->in_process = 0;
++
++	/* Store the qtd ptr in the urb to reference what QTD. */
++	urb->qtd = qtd;
++	return;
++}
++
++/**
++ * This function adds a QTD to the QTD-list of a QH.  It will find the correct
++ * QH to place the QTD into.  If it does not find a QH, then it will create a
++ * new QH. If the QH to which the QTD is added is not currently scheduled, it
++ * is placed into the proper schedule based on its EP type.
++ * HCD lock must be held and interrupts must be disabled on entry
++ *
++ * @param[in] qtd The QTD to add
++ * @param[in] hcd The DWC HCD structure
++ * @param[out] qh out parameter to return queue head
++ * @param atomic_alloc Flag to do atomic alloc if needed
++ *
++ * @return 0 if successful, negative error code otherwise.
++ */
++int dwc_otg_hcd_qtd_add(dwc_otg_qtd_t * qtd,
++			dwc_otg_hcd_t * hcd, dwc_otg_qh_t ** qh, int atomic_alloc)
++{
++	int retval = 0;
++	dwc_otg_hcd_urb_t *urb = qtd->urb;
++
++	/*
++	 * Get the QH which holds the QTD-list to insert to. Create QH if it
++	 * doesn't exist.
++	 */
++	if (*qh == NULL) {
++		*qh = dwc_otg_hcd_qh_create(hcd, urb, atomic_alloc);
++		if (*qh == NULL) {
++			retval = -DWC_E_NO_MEMORY;
++			goto done;
++		} else {
++			if (fiq_enable)
++				hcd->fiq_state->kick_np_queues = 1;
++		}
++	}
++	retval = dwc_otg_hcd_qh_add(hcd, *qh);
++	if (retval == 0) {
++		DWC_CIRCLEQ_INSERT_TAIL(&((*qh)->qtd_list), qtd,
++					qtd_list_entry);
++		qtd->qh = *qh;
++	}
++done:
++
++	return retval;
++}
++
++#endif /* DWC_DEVICE_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
+@@ -0,0 +1,200 @@
++#ifndef _DWC_OS_DEP_H_
++#define _DWC_OS_DEP_H_
++
++/**
++ * @file
++ *
++ * This file contains OS dependent structures.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/slab.h>
++#include <linux/list.h>
++#include <linux/interrupt.h>
++#include <linux/ctype.h>
++#include <linux/string.h>
++#include <linux/dma-mapping.h>
++#include <linux/jiffies.h>
++#include <linux/delay.h>
++#include <linux/timer.h>
++#include <linux/workqueue.h>
++#include <linux/stat.h>
++#include <linux/pci.h>
++#include <linux/compiler.h>
++
++#include <linux/version.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
++# include <linux/irq.h>
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21)
++# include <linux/usb/ch9.h>
++#else
++# include <linux/usb_ch9.h>
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++# include <linux/usb/gadget.h>
++#else
++# include <linux/usb_gadget.h>
++#endif
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
++# include <asm/irq.h>
++#endif
++
++#ifdef PCI_INTERFACE
++# include <asm/io.h>
++#endif
++
++#ifdef LM_INTERFACE
++# include <asm/unaligned.h>
++# include <asm/sizes.h>
++# include <asm/param.h>
++# include <asm/io.h>
++# if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30))
++#  include <asm/arch/hardware.h>
++#  include <asm/arch/lm.h>
++#  include <asm/arch/irqs.h>
++#  include <asm/arch/regs-irq.h>
++# else
++/* in 2.6.31, at least, we seem to have lost the generic LM infrastructure -
++   here we assume that the machine architecture provides definitions
++   in its own header
++*/
++#  include <mach/lm.h>
++#  include <mach/hardware.h>
++# endif
++#endif
++
++#ifdef PLATFORM_INTERFACE
++#include <linux/platform_device.h>
++#ifdef CONFIG_ARM
++#include <asm/mach/map.h>
++#endif
++#endif
++
++/** The OS page size */
++#define DWC_OS_PAGE_SIZE	PAGE_SIZE
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14)
++typedef int gfp_t;
++#endif
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
++# define IRQF_SHARED SA_SHIRQ
++#endif
++
++typedef struct os_dependent {
++	/** Base address returned from ioremap() */
++	void *base;
++
++	/** Register offset for Diagnostic API */
++	uint32_t reg_offset;
++
++	/** Base address for MPHI peripheral */
++	void *mphi_base;
++
++	/** mphi_base actually points to the SWIRQ block */
++	bool use_swirq;
++
++	/** IRQ number (<0 if not valid) */
++	int irq_num;
++
++	/** FIQ number (<0 if not valid) */
++	int fiq_num;
++
++#ifdef LM_INTERFACE
++	struct lm_device *lmdev;
++#elif  defined(PCI_INTERFACE)
++	struct pci_dev *pcidev;
++
++	/** Start address of a PCI region */
++	resource_size_t rsrc_start;
++
++	/** Length address of a PCI region */
++	resource_size_t rsrc_len;
++#elif  defined(PLATFORM_INTERFACE)
++	struct platform_device *platformdev;
++#endif
++
++} os_dependent_t;
++
++#ifdef __cplusplus
++}
++#endif
++
++
++
++/* Type for the our device on the chosen bus */
++#if   defined(LM_INTERFACE)
++typedef struct lm_device       dwc_bus_dev_t;
++#elif defined(PCI_INTERFACE)
++typedef struct pci_dev         dwc_bus_dev_t;
++#elif defined(PLATFORM_INTERFACE)
++typedef struct platform_device dwc_bus_dev_t;
++#endif
++
++/* Helper macro to retrieve drvdata from the device on the chosen bus */
++#if    defined(LM_INTERFACE)
++#define DWC_OTG_BUSDRVDATA(_dev) lm_get_drvdata(_dev)
++#elif  defined(PCI_INTERFACE)
++#define DWC_OTG_BUSDRVDATA(_dev) pci_get_drvdata(_dev)
++#elif  defined(PLATFORM_INTERFACE)
++#define DWC_OTG_BUSDRVDATA(_dev) platform_get_drvdata(_dev)
++#endif
++
++/**
++ * Helper macro returning the otg_device structure of a given struct device
++ *
++ * c.f. static dwc_otg_device_t *dwc_otg_drvdev(struct device *_dev)
++ */
++#ifdef LM_INTERFACE
++#define DWC_OTG_GETDRVDEV(_var, _dev) do { \
++                struct lm_device *lm_dev = \
++                        container_of(_dev, struct lm_device, dev); \
++                _var = lm_get_drvdata(lm_dev); \
++        } while (0)
++
++#elif defined(PCI_INTERFACE)
++#define DWC_OTG_GETDRVDEV(_var, _dev) do { \
++                _var = dev_get_drvdata(_dev); \
++        } while (0)
++
++#elif defined(PLATFORM_INTERFACE)
++#define DWC_OTG_GETDRVDEV(_var, _dev) do { \
++                struct platform_device *platform_dev = \
++                        container_of(_dev, struct platform_device, dev); \
++                _var = platform_get_drvdata(platform_dev); \
++        } while (0)
++#endif
++
++
++/**
++ * Helper macro returning the struct dev of the given struct os_dependent
++ *
++ * c.f. static struct device *dwc_otg_getdev(struct os_dependent *osdep)
++ */
++#ifdef LM_INTERFACE
++#define DWC_OTG_OS_GETDEV(_osdep) \
++        ((_osdep).lmdev == NULL? NULL: &(_osdep).lmdev->dev)
++#elif defined(PCI_INTERFACE)
++#define DWC_OTG_OS_GETDEV(_osdep) \
++        ((_osdep).pci_dev == NULL? NULL: &(_osdep).pci_dev->dev)
++#elif defined(PLATFORM_INTERFACE)
++#define DWC_OTG_OS_GETDEV(_osdep) \
++        ((_osdep).platformdev == NULL? NULL: &(_osdep).platformdev->dev)
++#endif
++
++
++
++
++#endif /* _DWC_OS_DEP_H_ */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd.c
+@@ -0,0 +1,2725 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.c $
++ * $Revision: #101 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_HOST_ONLY
++
++/** @file
++ * This file implements PCD Core. All code in this file is portable and doesn't
++ * use any OS specific functions.
++ * PCD Core provides Interface, defined in <code><dwc_otg_pcd_if.h></code>
++ * header file, which can be used to implement OS specific PCD interface.
++ *
++ * An important function of the PCD is managing interrupts generated
++ * by the DWC_otg controller. The implementation of the DWC_otg device
++ * mode interrupt service routines is in dwc_otg_pcd_intr.c.
++ *
++ * @todo Add Device Mode test modes (Test J mode, Test K mode, etc).
++ * @todo Does it work when the request size is greater than DEPTSIZ
++ * transfer size
++ *
++ */
++
++#include "dwc_otg_pcd.h"
++
++#ifdef DWC_UTE_CFI
++#include "dwc_otg_cfi.h"
++
++extern int init_cfi(cfiobject_t * cfiobj);
++#endif
++
++/**
++ * Choose endpoint from ep arrays using usb_ep structure.
++ */
++static dwc_otg_pcd_ep_t *get_ep_from_handle(dwc_otg_pcd_t * pcd, void *handle)
++{
++	int i;
++	if (pcd->ep0.priv == handle) {
++		return &pcd->ep0;
++	}
++	for (i = 0; i < MAX_EPS_CHANNELS - 1; i++) {
++		if (pcd->in_ep[i].priv == handle)
++			return &pcd->in_ep[i];
++		if (pcd->out_ep[i].priv == handle)
++			return &pcd->out_ep[i];
++	}
++
++	return NULL;
++}
++
++/**
++ * This function completes a request.  It call's the request call back.
++ */
++void dwc_otg_request_done(dwc_otg_pcd_ep_t * ep, dwc_otg_pcd_request_t * req,
++			  int32_t status)
++{
++	unsigned stopped = ep->stopped;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(ep %p req %p)\n", __func__, ep, req);
++	DWC_CIRCLEQ_REMOVE_INIT(&ep->queue, req, queue_entry);
++
++	/* don't modify queue heads during completion callback */
++	ep->stopped = 1;
++	/* spin_unlock/spin_lock now done in fops->complete() */
++	ep->pcd->fops->complete(ep->pcd, ep->priv, req->priv, status,
++				req->actual);
++
++	if (ep->pcd->request_pending > 0) {
++		--ep->pcd->request_pending;
++	}
++
++	ep->stopped = stopped;
++	DWC_FREE(req);
++}
++
++/**
++ * This function terminates all the requsts in the EP request queue.
++ */
++void dwc_otg_request_nuke(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_pcd_request_t *req;
++
++	ep->stopped = 1;
++
++	/* called with irqs blocked?? */
++	while (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		req = DWC_CIRCLEQ_FIRST(&ep->queue);
++		dwc_otg_request_done(ep, req, -DWC_E_SHUTDOWN);
++	}
++}
++
++void dwc_otg_pcd_start(dwc_otg_pcd_t * pcd,
++		       const struct dwc_otg_pcd_function_ops *fops)
++{
++	pcd->fops = fops;
++}
++
++/**
++ * PCD Callback function for initializing the PCD when switching to
++ * device mode.
++ *
++ * @param p void pointer to the <code>dwc_otg_pcd_t</code>
++ */
++static int32_t dwc_otg_pcd_start_cb(void *p)
++{
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++	/*
++	 * Initialized the Core for Device mode.
++	 */
++	if (dwc_otg_is_device_mode(core_if)) {
++		dwc_otg_core_dev_init(core_if);
++		/* Set core_if's lock pointer to the pcd->lock */
++		core_if->lock = pcd->lock;
++	}
++	return 1;
++}
++
++/** CFI-specific buffer allocation function for EP */
++#ifdef DWC_UTE_CFI
++uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep, dwc_dma_t * addr,
++			      size_t buflen, int flags)
++{
++	dwc_otg_pcd_ep_t *ep;
++	ep = get_ep_from_handle(pcd, pep);
++	if (!ep) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++
++	return pcd->cfi->ops.ep_alloc_buf(pcd->cfi, pcd, ep, addr, buflen,
++					  flags);
++}
++#else
++uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep, dwc_dma_t * addr,
++			      size_t buflen, int flags);
++#endif
++
++/**
++ * PCD Callback function for notifying the PCD when resuming from
++ * suspend.
++ *
++ * @param p void pointer to the <code>dwc_otg_pcd_t</code>
++ */
++static int32_t dwc_otg_pcd_resume_cb(void *p)
++{
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p;
++
++	if (pcd->fops->resume) {
++		pcd->fops->resume(pcd);
++	}
++
++	/* Stop the SRP timeout timer. */
++	if ((GET_CORE_IF(pcd)->core_params->phy_type != DWC_PHY_TYPE_PARAM_FS)
++	    || (!GET_CORE_IF(pcd)->core_params->i2c_enable)) {
++		if (GET_CORE_IF(pcd)->srp_timer_started) {
++			GET_CORE_IF(pcd)->srp_timer_started = 0;
++			DWC_TIMER_CANCEL(GET_CORE_IF(pcd)->srp_timer);
++		}
++	}
++	return 1;
++}
++
++/**
++ * PCD Callback function for notifying the PCD device is suspended.
++ *
++ * @param p void pointer to the <code>dwc_otg_pcd_t</code>
++ */
++static int32_t dwc_otg_pcd_suspend_cb(void *p)
++{
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p;
++
++	if (pcd->fops->suspend) {
++		DWC_SPINUNLOCK(pcd->lock);
++		pcd->fops->suspend(pcd);
++		DWC_SPINLOCK(pcd->lock);
++	}
++
++	return 1;
++}
++
++/**
++ * PCD Callback function for stopping the PCD when switching to Host
++ * mode.
++ *
++ * @param p void pointer to the <code>dwc_otg_pcd_t</code>
++ */
++static int32_t dwc_otg_pcd_stop_cb(void *p)
++{
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) p;
++	extern void dwc_otg_pcd_stop(dwc_otg_pcd_t * _pcd);
++
++	dwc_otg_pcd_stop(pcd);
++	return 1;
++}
++
++/**
++ * PCD Callback structure for handling mode switching.
++ */
++static dwc_otg_cil_callbacks_t pcd_callbacks = {
++	.start = dwc_otg_pcd_start_cb,
++	.stop = dwc_otg_pcd_stop_cb,
++	.suspend = dwc_otg_pcd_suspend_cb,
++	.resume_wakeup = dwc_otg_pcd_resume_cb,
++	.p = 0,			/* Set at registration */
++};
++
++/**
++ * This function allocates a DMA Descriptor chain for the Endpoint
++ * buffer to be used for a transfer to/from the specified endpoint.
++ */
++dwc_otg_dev_dma_desc_t *dwc_otg_ep_alloc_desc_chain(struct device *dev,
++						    dwc_dma_t * dma_desc_addr,
++						    uint32_t count)
++{
++	return DWC_DMA_ALLOC_ATOMIC(dev, count * sizeof(dwc_otg_dev_dma_desc_t),
++							dma_desc_addr);
++}
++
++/**
++ * This function frees a DMA Descriptor chain that was allocated by ep_alloc_desc.
++ */
++void dwc_otg_ep_free_desc_chain(struct device *dev,
++				dwc_otg_dev_dma_desc_t * desc_addr,
++				uint32_t dma_desc_addr, uint32_t count)
++{
++	DWC_DMA_FREE(dev, count * sizeof(dwc_otg_dev_dma_desc_t), desc_addr,
++		     dma_desc_addr);
++}
++
++#ifdef DWC_EN_ISOC
++
++/**
++ * This function initializes a descriptor chain for Isochronous transfer
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dwc_ep The EP to start the transfer on.
++ *
++ */
++void dwc_otg_iso_ep_start_ddma_transfer(dwc_otg_core_if_t * core_if,
++					dwc_ep_t * dwc_ep)
++{
++
++	dsts_data_t dsts = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	volatile uint32_t *addr;
++	int i, j;
++	uint32_t len;
++
++	if (dwc_ep->is_in)
++		dwc_ep->desc_cnt = dwc_ep->buf_proc_intrvl / dwc_ep->bInterval;
++	else
++		dwc_ep->desc_cnt =
++		    dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm /
++		    dwc_ep->bInterval;
++
++	/** Allocate descriptors for double buffering */
++	dwc_ep->iso_desc_addr =
++	    dwc_otg_ep_alloc_desc_chain(&dwc_ep->iso_dma_desc_addr,
++					dwc_ep->desc_cnt * 2);
++	if (dwc_ep->desc_addr) {
++		DWC_WARN("%s, can't allocate DMA descriptor chain\n", __func__);
++		return;
++	}
++
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++
++	/** ISO OUT EP */
++	if (dwc_ep->is_in == 0) {
++		dev_dma_desc_sts_t sts = {.d32 = 0 };
++		dwc_otg_dev_dma_desc_t *dma_desc = dwc_ep->iso_desc_addr;
++		dma_addr_t dma_ad;
++		uint32_t data_per_desc;
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++		    core_if->dev_if->out_ep_regs[dwc_ep->num];
++		int offset;
++
++		addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl;
++		dma_ad = (dma_addr_t) DWC_READ_REG32(&(out_regs->doepdma));
++
++		/** Buffer 0 descriptors setup */
++		dma_ad = dwc_ep->dma_addr0;
++
++		sts.b_iso_out.bs = BS_HOST_READY;
++		sts.b_iso_out.rxsts = 0;
++		sts.b_iso_out.l = 0;
++		sts.b_iso_out.sp = 0;
++		sts.b_iso_out.ioc = 0;
++		sts.b_iso_out.pid = 0;
++		sts.b_iso_out.framenum = 0;
++
++		offset = 0;
++		for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm;
++		     i += dwc_ep->pkt_per_frm) {
++
++			for (j = 0; j < dwc_ep->pkt_per_frm; ++j) {
++				uint32_t len = (j + 1) * dwc_ep->maxpacket;
++				if (len > dwc_ep->data_per_frame)
++					data_per_desc =
++					    dwc_ep->data_per_frame -
++					    j * dwc_ep->maxpacket;
++				else
++					data_per_desc = dwc_ep->maxpacket;
++				len = data_per_desc % 4;
++				if (len)
++					data_per_desc += 4 - len;
++
++				sts.b_iso_out.rxbytes = data_per_desc;
++				dma_desc->buf = dma_ad;
++				dma_desc->status.d32 = sts.d32;
++
++				offset += data_per_desc;
++				dma_desc++;
++				dma_ad += data_per_desc;
++			}
++		}
++
++		for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) {
++			uint32_t len = (j + 1) * dwc_ep->maxpacket;
++			if (len > dwc_ep->data_per_frame)
++				data_per_desc =
++				    dwc_ep->data_per_frame -
++				    j * dwc_ep->maxpacket;
++			else
++				data_per_desc = dwc_ep->maxpacket;
++			len = data_per_desc % 4;
++			if (len)
++				data_per_desc += 4 - len;
++			sts.b_iso_out.rxbytes = data_per_desc;
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++
++			offset += data_per_desc;
++			dma_desc++;
++			dma_ad += data_per_desc;
++		}
++
++		sts.b_iso_out.ioc = 1;
++		len = (j + 1) * dwc_ep->maxpacket;
++		if (len > dwc_ep->data_per_frame)
++			data_per_desc =
++			    dwc_ep->data_per_frame - j * dwc_ep->maxpacket;
++		else
++			data_per_desc = dwc_ep->maxpacket;
++		len = data_per_desc % 4;
++		if (len)
++			data_per_desc += 4 - len;
++		sts.b_iso_out.rxbytes = data_per_desc;
++
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++		dma_desc++;
++
++		/** Buffer 1 descriptors setup */
++		sts.b_iso_out.ioc = 0;
++		dma_ad = dwc_ep->dma_addr1;
++
++		offset = 0;
++		for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm;
++		     i += dwc_ep->pkt_per_frm) {
++			for (j = 0; j < dwc_ep->pkt_per_frm; ++j) {
++				uint32_t len = (j + 1) * dwc_ep->maxpacket;
++				if (len > dwc_ep->data_per_frame)
++					data_per_desc =
++					    dwc_ep->data_per_frame -
++					    j * dwc_ep->maxpacket;
++				else
++					data_per_desc = dwc_ep->maxpacket;
++				len = data_per_desc % 4;
++				if (len)
++					data_per_desc += 4 - len;
++
++				data_per_desc =
++				    sts.b_iso_out.rxbytes = data_per_desc;
++				dma_desc->buf = dma_ad;
++				dma_desc->status.d32 = sts.d32;
++
++				offset += data_per_desc;
++				dma_desc++;
++				dma_ad += data_per_desc;
++			}
++		}
++		for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) {
++			data_per_desc =
++			    ((j + 1) * dwc_ep->maxpacket >
++			     dwc_ep->data_per_frame) ? dwc_ep->data_per_frame -
++			    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++			data_per_desc +=
++			    (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0;
++			sts.b_iso_out.rxbytes = data_per_desc;
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++
++			offset += data_per_desc;
++			dma_desc++;
++			dma_ad += data_per_desc;
++		}
++
++		sts.b_iso_out.ioc = 1;
++		sts.b_iso_out.l = 1;
++		data_per_desc =
++		    ((j + 1) * dwc_ep->maxpacket >
++		     dwc_ep->data_per_frame) ? dwc_ep->data_per_frame -
++		    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++		data_per_desc +=
++		    (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0;
++		sts.b_iso_out.rxbytes = data_per_desc;
++
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++
++		dwc_ep->next_frame = 0;
++
++		/** Write dma_ad into DOEPDMA register */
++		DWC_WRITE_REG32(&(out_regs->doepdma),
++				(uint32_t) dwc_ep->iso_dma_desc_addr);
++
++	}
++	/** ISO IN EP */
++	else {
++		dev_dma_desc_sts_t sts = {.d32 = 0 };
++		dwc_otg_dev_dma_desc_t *dma_desc = dwc_ep->iso_desc_addr;
++		dma_addr_t dma_ad;
++		dwc_otg_dev_in_ep_regs_t *in_regs =
++		    core_if->dev_if->in_ep_regs[dwc_ep->num];
++		unsigned int frmnumber;
++		fifosize_data_t txfifosize, rxfifosize;
++
++		txfifosize.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[dwc_ep->num]->
++				   dtxfsts);
++		rxfifosize.d32 =
++		    DWC_READ_REG32(&core_if->core_global_regs->grxfsiz);
++
++		addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl;
++
++		dma_ad = dwc_ep->dma_addr0;
++
++		dsts.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++
++		sts.b_iso_in.bs = BS_HOST_READY;
++		sts.b_iso_in.txsts = 0;
++		sts.b_iso_in.sp =
++		    (dwc_ep->data_per_frame % dwc_ep->maxpacket) ? 1 : 0;
++		sts.b_iso_in.ioc = 0;
++		sts.b_iso_in.pid = dwc_ep->pkt_per_frm;
++
++		frmnumber = dwc_ep->next_frame;
++
++		sts.b_iso_in.framenum = frmnumber;
++		sts.b_iso_in.txbytes = dwc_ep->data_per_frame;
++		sts.b_iso_in.l = 0;
++
++		/** Buffer 0 descriptors setup */
++		for (i = 0; i < dwc_ep->desc_cnt - 1; i++) {
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++			dma_desc++;
++
++			dma_ad += dwc_ep->data_per_frame;
++			sts.b_iso_in.framenum += dwc_ep->bInterval;
++		}
++
++		sts.b_iso_in.ioc = 1;
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++		++dma_desc;
++
++		/** Buffer 1 descriptors setup */
++		sts.b_iso_in.ioc = 0;
++		dma_ad = dwc_ep->dma_addr1;
++
++		for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm;
++		     i += dwc_ep->pkt_per_frm) {
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++			dma_desc++;
++
++			dma_ad += dwc_ep->data_per_frame;
++			sts.b_iso_in.framenum += dwc_ep->bInterval;
++
++			sts.b_iso_in.ioc = 0;
++		}
++		sts.b_iso_in.ioc = 1;
++		sts.b_iso_in.l = 1;
++
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++
++		dwc_ep->next_frame = sts.b_iso_in.framenum + dwc_ep->bInterval;
++
++		/** Write dma_ad into diepdma register */
++		DWC_WRITE_REG32(&(in_regs->diepdma),
++				(uint32_t) dwc_ep->iso_dma_desc_addr);
++	}
++	/** Enable endpoint, clear nak  */
++	depctl.d32 = 0;
++	depctl.b.epena = 1;
++	depctl.b.usbactep = 1;
++	depctl.b.cnak = 1;
++
++	DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32);
++	depctl.d32 = DWC_READ_REG32(addr);
++}
++
++/**
++ * This function initializes a descriptor chain for Isochronous transfer
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++void dwc_otg_iso_ep_start_buf_transfer(dwc_otg_core_if_t * core_if,
++				       dwc_ep_t * ep)
++{
++	depctl_data_t depctl = {.d32 = 0 };
++	volatile uint32_t *addr;
++
++	if (ep->is_in) {
++		addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl;
++	} else {
++		addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl;
++	}
++
++	if (core_if->dma_enable == 0 || core_if->dma_desc_enable != 0) {
++		return;
++	} else {
++		deptsiz_data_t deptsiz = {.d32 = 0 };
++
++		ep->xfer_len =
++		    ep->data_per_frame * ep->buf_proc_intrvl / ep->bInterval;
++		ep->pkt_cnt =
++		    (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket;
++		ep->xfer_count = 0;
++		ep->xfer_buff =
++		    (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0;
++		ep->dma_addr =
++		    (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0;
++
++		if (ep->is_in) {
++			/* Program the transfer size and packet count
++			 *      as follows: xfersize = N * maxpacket +
++			 *      short_packet pktcnt = N + (short_packet
++			 *      exist ? 1 : 0)
++			 */
++			deptsiz.b.mc = ep->pkt_per_frm;
++			deptsiz.b.xfersize = ep->xfer_len;
++			deptsiz.b.pktcnt =
++			    (ep->xfer_len - 1 + ep->maxpacket) / ep->maxpacket;
++			DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++					dieptsiz, deptsiz.d32);
++
++			/* Write the DMA register */
++			DWC_WRITE_REG32(&
++					(core_if->dev_if->in_ep_regs[ep->num]->
++					 diepdma), (uint32_t) ep->dma_addr);
++
++		} else {
++			deptsiz.b.pktcnt =
++			    (ep->xfer_len + (ep->maxpacket - 1)) /
++			    ep->maxpacket;
++			deptsiz.b.xfersize = deptsiz.b.pktcnt * ep->maxpacket;
++
++			DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[ep->num]->
++					doeptsiz, deptsiz.d32);
++
++			/* Write the DMA register */
++			DWC_WRITE_REG32(&
++					(core_if->dev_if->out_ep_regs[ep->num]->
++					 doepdma), (uint32_t) ep->dma_addr);
++
++		}
++		/** Enable endpoint, clear nak  */
++		depctl.d32 = 0;
++		depctl.b.epena = 1;
++		depctl.b.cnak = 1;
++
++		DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32);
++	}
++}
++
++/**
++ * This function does the setup for a data transfer for an EP and
++ * starts the transfer. For an IN transfer, the packets will be
++ * loaded into the appropriate Tx FIFO in the ISR. For OUT transfers,
++ * the packets are unloaded from the Rx FIFO in the ISR.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ */
++
++static void dwc_otg_iso_ep_start_transfer(dwc_otg_core_if_t * core_if,
++					  dwc_ep_t * ep)
++{
++	if (core_if->dma_enable) {
++		if (core_if->dma_desc_enable) {
++			if (ep->is_in) {
++				ep->desc_cnt = ep->pkt_cnt / ep->pkt_per_frm;
++			} else {
++				ep->desc_cnt = ep->pkt_cnt;
++			}
++			dwc_otg_iso_ep_start_ddma_transfer(core_if, ep);
++		} else {
++			if (core_if->pti_enh_enable) {
++				dwc_otg_iso_ep_start_buf_transfer(core_if, ep);
++			} else {
++				ep->cur_pkt_addr =
++				    (ep->proc_buf_num) ? ep->xfer_buff1 : ep->
++				    xfer_buff0;
++				ep->cur_pkt_dma_addr =
++				    (ep->proc_buf_num) ? ep->dma_addr1 : ep->
++				    dma_addr0;
++				dwc_otg_iso_ep_start_frm_transfer(core_if, ep);
++			}
++		}
++	} else {
++		ep->cur_pkt_addr =
++		    (ep->proc_buf_num) ? ep->xfer_buff1 : ep->xfer_buff0;
++		ep->cur_pkt_dma_addr =
++		    (ep->proc_buf_num) ? ep->dma_addr1 : ep->dma_addr0;
++		dwc_otg_iso_ep_start_frm_transfer(core_if, ep);
++	}
++}
++
++/**
++ * This function stops transfer for an EP and
++ * resets the ep's variables.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ */
++
++void dwc_otg_iso_ep_stop_transfer(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	depctl_data_t depctl = {.d32 = 0 };
++	volatile uint32_t *addr;
++
++	if (ep->is_in == 1) {
++		addr = &core_if->dev_if->in_ep_regs[ep->num]->diepctl;
++	} else {
++		addr = &core_if->dev_if->out_ep_regs[ep->num]->doepctl;
++	}
++
++	/* disable the ep */
++	depctl.d32 = DWC_READ_REG32(addr);
++
++	depctl.b.epdis = 1;
++	depctl.b.snak = 1;
++
++	DWC_WRITE_REG32(addr, depctl.d32);
++
++	if (core_if->dma_desc_enable &&
++	    ep->iso_desc_addr && ep->iso_dma_desc_addr) {
++		dwc_otg_ep_free_desc_chain(ep->iso_desc_addr,
++					   ep->iso_dma_desc_addr,
++					   ep->desc_cnt * 2);
++	}
++
++	/* reset varibales */
++	ep->dma_addr0 = 0;
++	ep->dma_addr1 = 0;
++	ep->xfer_buff0 = 0;
++	ep->xfer_buff1 = 0;
++	ep->data_per_frame = 0;
++	ep->data_pattern_frame = 0;
++	ep->sync_frame = 0;
++	ep->buf_proc_intrvl = 0;
++	ep->bInterval = 0;
++	ep->proc_buf_num = 0;
++	ep->pkt_per_frm = 0;
++	ep->pkt_per_frm = 0;
++	ep->desc_cnt = 0;
++	ep->iso_desc_addr = 0;
++	ep->iso_dma_desc_addr = 0;
++}
++
++int dwc_otg_pcd_iso_ep_start(dwc_otg_pcd_t * pcd, void *ep_handle,
++			     uint8_t * buf0, uint8_t * buf1, dwc_dma_t dma0,
++			     dwc_dma_t dma1, int sync_frame, int dp_frame,
++			     int data_per_frame, int start_frame,
++			     int buf_proc_intrvl, void *req_handle,
++			     int atomic_alloc)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_irqflags_t flags = 0;
++	dwc_ep_t *dwc_ep;
++	int32_t frm_data;
++	dsts_data_t dsts;
++	dwc_otg_core_if_t *core_if;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++
++	if (!ep || !ep->desc || ep->dwc_ep.num == 0) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	core_if = GET_CORE_IF(pcd);
++	dwc_ep = &ep->dwc_ep;
++
++	if (ep->iso_req_handle) {
++		DWC_WARN("ISO request in progress\n");
++	}
++
++	dwc_ep->dma_addr0 = dma0;
++	dwc_ep->dma_addr1 = dma1;
++
++	dwc_ep->xfer_buff0 = buf0;
++	dwc_ep->xfer_buff1 = buf1;
++
++	dwc_ep->data_per_frame = data_per_frame;
++
++	/** @todo - pattern data support is to be implemented in the future */
++	dwc_ep->data_pattern_frame = dp_frame;
++	dwc_ep->sync_frame = sync_frame;
++
++	dwc_ep->buf_proc_intrvl = buf_proc_intrvl;
++
++	dwc_ep->bInterval = 1 << (ep->desc->bInterval - 1);
++
++	dwc_ep->proc_buf_num = 0;
++
++	dwc_ep->pkt_per_frm = 0;
++	frm_data = ep->dwc_ep.data_per_frame;
++	while (frm_data > 0) {
++		dwc_ep->pkt_per_frm++;
++		frm_data -= ep->dwc_ep.maxpacket;
++	}
++
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++
++	if (start_frame == -1) {
++		dwc_ep->next_frame = dsts.b.soffn + 1;
++		if (dwc_ep->bInterval != 1) {
++			dwc_ep->next_frame =
++			    dwc_ep->next_frame + (dwc_ep->bInterval - 1 -
++						  dwc_ep->next_frame %
++						  dwc_ep->bInterval);
++		}
++	} else {
++		dwc_ep->next_frame = start_frame;
++	}
++
++	if (!core_if->pti_enh_enable) {
++		dwc_ep->pkt_cnt =
++		    dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm /
++		    dwc_ep->bInterval;
++	} else {
++		dwc_ep->pkt_cnt =
++		    (dwc_ep->data_per_frame *
++		     (dwc_ep->buf_proc_intrvl / dwc_ep->bInterval)
++		     - 1 + dwc_ep->maxpacket) / dwc_ep->maxpacket;
++	}
++
++	if (core_if->dma_desc_enable) {
++		dwc_ep->desc_cnt =
++		    dwc_ep->buf_proc_intrvl * dwc_ep->pkt_per_frm /
++		    dwc_ep->bInterval;
++	}
++
++	if (atomic_alloc) {
++		dwc_ep->pkt_info =
++		    DWC_ALLOC_ATOMIC(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt);
++	} else {
++		dwc_ep->pkt_info =
++		    DWC_ALLOC(sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt);
++	}
++	if (!dwc_ep->pkt_info) {
++		DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++		return -DWC_E_NO_MEMORY;
++	}
++	if (core_if->pti_enh_enable) {
++		dwc_memset(dwc_ep->pkt_info, 0,
++			   sizeof(iso_pkt_info_t) * dwc_ep->pkt_cnt);
++	}
++
++	dwc_ep->cur_pkt = 0;
++	ep->iso_req_handle = req_handle;
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++	dwc_otg_iso_ep_start_transfer(core_if, dwc_ep);
++	return 0;
++}
++
++int dwc_otg_pcd_iso_ep_stop(dwc_otg_pcd_t * pcd, void *ep_handle,
++			    void *req_handle)
++{
++	dwc_irqflags_t flags = 0;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep || !ep->desc || ep->dwc_ep.num == 0) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++	dwc_ep = &ep->dwc_ep;
++
++	dwc_otg_iso_ep_stop_transfer(GET_CORE_IF(pcd), dwc_ep);
++
++	DWC_FREE(dwc_ep->pkt_info);
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	if (ep->iso_req_handle != req_handle) {
++		DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	ep->iso_req_handle = 0;
++	return 0;
++}
++
++/**
++ * This function is used for perodical data exchnage between PCD and gadget drivers.
++ * for Isochronous EPs
++ *
++ *	- Every time a sync period completes this function is called to
++ *	  perform data exchange between PCD and gadget
++ */
++void dwc_otg_iso_buffer_done(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep,
++			     void *req_handle)
++{
++	int i;
++	dwc_ep_t *dwc_ep;
++
++	dwc_ep = &ep->dwc_ep;
++
++	DWC_SPINUNLOCK(ep->pcd->lock);
++	pcd->fops->isoc_complete(pcd, ep->priv, ep->iso_req_handle,
++				 dwc_ep->proc_buf_num ^ 0x1);
++	DWC_SPINLOCK(ep->pcd->lock);
++
++	for (i = 0; i < dwc_ep->pkt_cnt; ++i) {
++		dwc_ep->pkt_info[i].status = 0;
++		dwc_ep->pkt_info[i].offset = 0;
++		dwc_ep->pkt_info[i].length = 0;
++	}
++}
++
++int dwc_otg_pcd_get_iso_packet_count(dwc_otg_pcd_t * pcd, void *ep_handle,
++				     void *iso_req_handle)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep->desc || ep->dwc_ep.num == 0) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++	dwc_ep = &ep->dwc_ep;
++
++	return dwc_ep->pkt_cnt;
++}
++
++void dwc_otg_pcd_get_iso_packet_params(dwc_otg_pcd_t * pcd, void *ep_handle,
++				       void *iso_req_handle, int packet,
++				       int *status, int *actual, int *offset)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep)
++		DWC_WARN("bad ep\n");
++
++	dwc_ep = &ep->dwc_ep;
++
++	*status = dwc_ep->pkt_info[packet].status;
++	*actual = dwc_ep->pkt_info[packet].length;
++	*offset = dwc_ep->pkt_info[packet].offset;
++}
++
++#endif /* DWC_EN_ISOC */
++
++static void dwc_otg_pcd_init_ep(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * pcd_ep,
++				uint32_t is_in, uint32_t ep_num)
++{
++	/* Init EP structure */
++	pcd_ep->desc = 0;
++	pcd_ep->pcd = pcd;
++	pcd_ep->stopped = 1;
++	pcd_ep->queue_sof = 0;
++
++	/* Init DWC ep structure */
++	pcd_ep->dwc_ep.is_in = is_in;
++	pcd_ep->dwc_ep.num = ep_num;
++	pcd_ep->dwc_ep.active = 0;
++	pcd_ep->dwc_ep.tx_fifo_num = 0;
++	/* Control until ep is actvated */
++	pcd_ep->dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL;
++	pcd_ep->dwc_ep.maxpacket = MAX_PACKET_SIZE;
++	pcd_ep->dwc_ep.dma_addr = 0;
++	pcd_ep->dwc_ep.start_xfer_buff = 0;
++	pcd_ep->dwc_ep.xfer_buff = 0;
++	pcd_ep->dwc_ep.xfer_len = 0;
++	pcd_ep->dwc_ep.xfer_count = 0;
++	pcd_ep->dwc_ep.sent_zlp = 0;
++	pcd_ep->dwc_ep.total_len = 0;
++	pcd_ep->dwc_ep.desc_addr = 0;
++	pcd_ep->dwc_ep.dma_desc_addr = 0;
++	DWC_CIRCLEQ_INIT(&pcd_ep->queue);
++}
++
++/**
++ * Initialize ep's
++ */
++static void dwc_otg_pcd_reinit(dwc_otg_pcd_t * pcd)
++{
++	int i;
++	uint32_t hwcfg1;
++	dwc_otg_pcd_ep_t *ep;
++	int in_ep_cntr, out_ep_cntr;
++	uint32_t num_in_eps = (GET_CORE_IF(pcd))->dev_if->num_in_eps;
++	uint32_t num_out_eps = (GET_CORE_IF(pcd))->dev_if->num_out_eps;
++
++	/**
++	 * Initialize the EP0 structure.
++	 */
++	ep = &pcd->ep0;
++	dwc_otg_pcd_init_ep(pcd, ep, 0, 0);
++
++	in_ep_cntr = 0;
++	hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 3;
++	for (i = 1; in_ep_cntr < num_in_eps; i++) {
++		if ((hwcfg1 & 0x1) == 0) {
++			dwc_otg_pcd_ep_t *ep = &pcd->in_ep[in_ep_cntr];
++			in_ep_cntr++;
++			/**
++			 * @todo NGS: Add direction to EP, based on contents
++			 * of HWCFG1.  Need a copy of HWCFG1 in pcd structure?
++			 * sprintf(";r
++			 */
++			dwc_otg_pcd_init_ep(pcd, ep, 1 /* IN */ , i);
++
++			DWC_CIRCLEQ_INIT(&ep->queue);
++		}
++		hwcfg1 >>= 2;
++	}
++
++	out_ep_cntr = 0;
++	hwcfg1 = (GET_CORE_IF(pcd))->hwcfg1.d32 >> 2;
++	for (i = 1; out_ep_cntr < num_out_eps; i++) {
++		if ((hwcfg1 & 0x1) == 0) {
++			dwc_otg_pcd_ep_t *ep = &pcd->out_ep[out_ep_cntr];
++			out_ep_cntr++;
++			/**
++			 * @todo NGS: Add direction to EP, based on contents
++			 * of HWCFG1.  Need a copy of HWCFG1 in pcd structure?
++			 * sprintf(";r
++			 */
++			dwc_otg_pcd_init_ep(pcd, ep, 0 /* OUT */ , i);
++			DWC_CIRCLEQ_INIT(&ep->queue);
++		}
++		hwcfg1 >>= 2;
++	}
++
++	pcd->ep0state = EP0_DISCONNECT;
++	pcd->ep0.dwc_ep.maxpacket = MAX_EP0_SIZE;
++	pcd->ep0.dwc_ep.type = DWC_OTG_EP_TYPE_CONTROL;
++}
++
++/**
++ * This function is called when the SRP timer expires. The SRP should
++ * complete within 6 seconds.
++ */
++static void srp_timeout(void *ptr)
++{
++	gotgctl_data_t gotgctl;
++	dwc_otg_core_if_t *core_if = (dwc_otg_core_if_t *) ptr;
++	volatile uint32_t *addr = &core_if->core_global_regs->gotgctl;
++
++	gotgctl.d32 = DWC_READ_REG32(addr);
++
++	core_if->srp_timer_started = 0;
++
++	if (core_if->adp_enable) {
++		if (gotgctl.b.bsesvld == 0) {
++			gpwrdn_data_t gpwrdn = {.d32 = 0 };
++			DWC_PRINTF("SRP Timeout BSESSVLD = 0\n");
++			/* Power off the core */
++			if (core_if->power_down == 2) {
++				gpwrdn.b.pwrdnswtch = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gpwrdn,
++						 gpwrdn.d32, 0);
++			}
++
++			gpwrdn.d32 = 0;
++			gpwrdn.b.pmuintsel = 1;
++			gpwrdn.b.pmuactv = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gpwrdn, 0,
++					 gpwrdn.d32);
++			dwc_otg_adp_probe_start(core_if);
++		} else {
++			DWC_PRINTF("SRP Timeout BSESSVLD = 1\n");
++			core_if->op_state = B_PERIPHERAL;
++			dwc_otg_core_init(core_if);
++			dwc_otg_enable_global_interrupts(core_if);
++			cil_pcd_start(core_if);
++		}
++	}
++
++	if ((core_if->core_params->phy_type == DWC_PHY_TYPE_PARAM_FS) &&
++	    (core_if->core_params->i2c_enable)) {
++		DWC_PRINTF("SRP Timeout\n");
++
++		if ((core_if->srp_success) && (gotgctl.b.bsesvld)) {
++			if (core_if->pcd_cb && core_if->pcd_cb->resume_wakeup) {
++				core_if->pcd_cb->resume_wakeup(core_if->pcd_cb->p);
++			}
++
++			/* Clear Session Request */
++			gotgctl.d32 = 0;
++			gotgctl.b.sesreq = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gotgctl,
++					 gotgctl.d32, 0);
++
++			core_if->srp_success = 0;
++		} else {
++			__DWC_ERROR("Device not connected/responding\n");
++			gotgctl.b.sesreq = 0;
++			DWC_WRITE_REG32(addr, gotgctl.d32);
++		}
++	} else if (gotgctl.b.sesreq) {
++		DWC_PRINTF("SRP Timeout\n");
++
++		__DWC_ERROR("Device not connected/responding\n");
++		gotgctl.b.sesreq = 0;
++		DWC_WRITE_REG32(addr, gotgctl.d32);
++	} else {
++		DWC_PRINTF(" SRP GOTGCTL=%0x\n", gotgctl.d32);
++	}
++}
++
++/**
++ * Tasklet
++ *
++ */
++extern void start_next_request(dwc_otg_pcd_ep_t * ep);
++
++static void start_xfer_tasklet_func(void *data)
++{
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) data;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++	int i;
++	depctl_data_t diepctl;
++
++	DWC_DEBUGPL(DBG_PCDV, "Start xfer tasklet\n");
++
++	diepctl.d32 = DWC_READ_REG32(&core_if->dev_if->in_ep_regs[0]->diepctl);
++
++	if (pcd->ep0.queue_sof) {
++		pcd->ep0.queue_sof = 0;
++		start_next_request(&pcd->ep0);
++		// break;
++	}
++
++	for (i = 0; i < core_if->dev_if->num_in_eps; i++) {
++		depctl_data_t diepctl;
++		diepctl.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[i]->diepctl);
++
++		if (pcd->in_ep[i].queue_sof) {
++			pcd->in_ep[i].queue_sof = 0;
++			start_next_request(&pcd->in_ep[i]);
++			// break;
++		}
++	}
++
++	return;
++}
++
++/**
++ * This function initialized the PCD portion of the driver.
++ *
++ */
++dwc_otg_pcd_t *dwc_otg_pcd_init(dwc_otg_device_t *otg_dev)
++{
++	struct device *dev = &otg_dev->os_dep.platformdev->dev;
++	dwc_otg_core_if_t *core_if = otg_dev->core_if;
++	dwc_otg_pcd_t *pcd = NULL;
++	dwc_otg_dev_if_t *dev_if;
++	int i;
++
++	/*
++	 * Allocate PCD structure
++	 */
++	pcd = DWC_ALLOC(sizeof(dwc_otg_pcd_t));
++
++	if (pcd == NULL) {
++		return NULL;
++	}
++
++#if (defined(DWC_LINUX) && defined(CONFIG_DEBUG_SPINLOCK))
++	DWC_SPINLOCK_ALLOC_LINUX_DEBUG(pcd->lock);
++#else
++	pcd->lock = DWC_SPINLOCK_ALLOC();
++#endif
++        DWC_DEBUGPL(DBG_HCDV, "Init of PCD %p given core_if %p\n",
++                    pcd, core_if);//GRAYG
++	if (!pcd->lock) {
++		DWC_ERROR("Could not allocate lock for pcd");
++		DWC_FREE(pcd);
++		return NULL;
++	}
++	/* Set core_if's lock pointer to hcd->lock */
++	core_if->lock = pcd->lock;
++	pcd->core_if = core_if;
++
++	dev_if = core_if->dev_if;
++	dev_if->isoc_ep = NULL;
++
++	if (core_if->hwcfg4.b.ded_fifo_en) {
++		DWC_PRINTF("Dedicated Tx FIFOs mode\n");
++	} else {
++		DWC_PRINTF("Shared Tx FIFO mode\n");
++	}
++
++	/*
++	 * Initialized the Core for Device mode here if there is nod ADP support.
++	 * Otherwise it will be done later in dwc_otg_adp_start routine.
++	 */
++	if (dwc_otg_is_device_mode(core_if) /*&& !core_if->adp_enable*/) {
++		dwc_otg_core_dev_init(core_if);
++	}
++
++	/*
++	 * Register the PCD Callbacks.
++	 */
++	dwc_otg_cil_register_pcd_callbacks(core_if, &pcd_callbacks, pcd);
++
++	/*
++	 * Initialize the DMA buffer for SETUP packets
++	 */
++	if (GET_CORE_IF(pcd)->dma_enable) {
++		pcd->setup_pkt =
++		    DWC_DMA_ALLOC(dev, sizeof(*pcd->setup_pkt) * 5,
++				  &pcd->setup_pkt_dma_handle);
++		if (pcd->setup_pkt == NULL) {
++			DWC_FREE(pcd);
++			return NULL;
++		}
++
++		pcd->status_buf =
++		    DWC_DMA_ALLOC(dev, sizeof(uint16_t),
++				  &pcd->status_buf_dma_handle);
++		if (pcd->status_buf == NULL) {
++			DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5,
++				     pcd->setup_pkt, pcd->setup_pkt_dma_handle);
++			DWC_FREE(pcd);
++			return NULL;
++		}
++
++		if (GET_CORE_IF(pcd)->dma_desc_enable) {
++			dev_if->setup_desc_addr[0] =
++			    dwc_otg_ep_alloc_desc_chain(dev,
++				&dev_if->dma_setup_desc_addr[0], 1);
++			dev_if->setup_desc_addr[1] =
++			    dwc_otg_ep_alloc_desc_chain(dev,
++				&dev_if->dma_setup_desc_addr[1], 1);
++			dev_if->in_desc_addr =
++			    dwc_otg_ep_alloc_desc_chain(dev,
++				&dev_if->dma_in_desc_addr, 1);
++			dev_if->out_desc_addr =
++			    dwc_otg_ep_alloc_desc_chain(dev,
++				&dev_if->dma_out_desc_addr, 1);
++			pcd->data_terminated = 0;
++
++			if (dev_if->setup_desc_addr[0] == 0
++			    || dev_if->setup_desc_addr[1] == 0
++			    || dev_if->in_desc_addr == 0
++			    || dev_if->out_desc_addr == 0) {
++
++				if (dev_if->out_desc_addr)
++					dwc_otg_ep_free_desc_chain(dev,
++					     dev_if->out_desc_addr,
++					     dev_if->dma_out_desc_addr, 1);
++				if (dev_if->in_desc_addr)
++					dwc_otg_ep_free_desc_chain(dev,
++					     dev_if->in_desc_addr,
++					     dev_if->dma_in_desc_addr, 1);
++				if (dev_if->setup_desc_addr[1])
++					dwc_otg_ep_free_desc_chain(dev,
++					     dev_if->setup_desc_addr[1],
++					     dev_if->dma_setup_desc_addr[1], 1);
++				if (dev_if->setup_desc_addr[0])
++					dwc_otg_ep_free_desc_chain(dev,
++					     dev_if->setup_desc_addr[0],
++					     dev_if->dma_setup_desc_addr[0], 1);
++
++				DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5,
++					     pcd->setup_pkt,
++					     pcd->setup_pkt_dma_handle);
++				DWC_DMA_FREE(dev, sizeof(*pcd->status_buf),
++					     pcd->status_buf,
++					     pcd->status_buf_dma_handle);
++
++				DWC_FREE(pcd);
++
++				return NULL;
++			}
++		}
++	} else {
++		pcd->setup_pkt = DWC_ALLOC(sizeof(*pcd->setup_pkt) * 5);
++		if (pcd->setup_pkt == NULL) {
++			DWC_FREE(pcd);
++			return NULL;
++		}
++
++		pcd->status_buf = DWC_ALLOC(sizeof(uint16_t));
++		if (pcd->status_buf == NULL) {
++			DWC_FREE(pcd->setup_pkt);
++			DWC_FREE(pcd);
++			return NULL;
++		}
++	}
++
++	dwc_otg_pcd_reinit(pcd);
++
++	/* Allocate the cfi object for the PCD */
++#ifdef DWC_UTE_CFI
++	pcd->cfi = DWC_ALLOC(sizeof(cfiobject_t));
++	if (NULL == pcd->cfi)
++		goto fail;
++	if (init_cfi(pcd->cfi)) {
++		CFI_INFO("%s: Failed to init the CFI object\n", __func__);
++		goto fail;
++	}
++#endif
++
++	/* Initialize tasklets */
++	pcd->start_xfer_tasklet = DWC_TASK_ALLOC("xfer_tasklet",
++						 start_xfer_tasklet_func, pcd);
++	pcd->test_mode_tasklet = DWC_TASK_ALLOC("test_mode_tasklet",
++						do_test_mode, pcd);
++
++	/* Initialize SRP timer */
++	core_if->srp_timer = DWC_TIMER_ALLOC("SRP TIMER", srp_timeout, core_if);
++
++	if (core_if->core_params->dev_out_nak) {
++		/**
++		* Initialize xfer timeout timer. Implemented for
++		* 2.93a feature "Device DDMA OUT NAK Enhancement"
++		*/
++		for(i = 0; i < MAX_EPS_CHANNELS; i++) {
++			pcd->core_if->ep_xfer_timer[i] =
++				DWC_TIMER_ALLOC("ep timer", ep_xfer_timeout,
++				&pcd->core_if->ep_xfer_info[i]);
++		}
++	}
++
++	return pcd;
++#ifdef DWC_UTE_CFI
++fail:
++#endif
++	if (pcd->setup_pkt)
++		DWC_FREE(pcd->setup_pkt);
++	if (pcd->status_buf)
++		DWC_FREE(pcd->status_buf);
++#ifdef DWC_UTE_CFI
++	if (pcd->cfi)
++		DWC_FREE(pcd->cfi);
++#endif
++	if (pcd)
++		DWC_FREE(pcd);
++	return NULL;
++
++}
++
++/**
++ * Remove PCD specific data
++ */
++void dwc_otg_pcd_remove(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if;
++	struct device *dev = dwc_otg_pcd_to_dev(pcd);
++	int i;
++
++	if (pcd->core_if->core_params->dev_out_nak) {
++		for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++			DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[i]);
++			pcd->core_if->ep_xfer_info[i].state = 0;
++		}
++	}
++
++	if (GET_CORE_IF(pcd)->dma_enable) {
++		DWC_DMA_FREE(dev, sizeof(*pcd->setup_pkt) * 5, pcd->setup_pkt,
++			     pcd->setup_pkt_dma_handle);
++		DWC_DMA_FREE(dev, sizeof(uint16_t), pcd->status_buf,
++			     pcd->status_buf_dma_handle);
++		if (GET_CORE_IF(pcd)->dma_desc_enable) {
++			dwc_otg_ep_free_desc_chain(dev,
++						   dev_if->setup_desc_addr[0],
++						   dev_if->dma_setup_desc_addr
++						   [0], 1);
++			dwc_otg_ep_free_desc_chain(dev,
++						   dev_if->setup_desc_addr[1],
++						   dev_if->dma_setup_desc_addr
++						   [1], 1);
++			dwc_otg_ep_free_desc_chain(dev,
++						   dev_if->in_desc_addr,
++						   dev_if->dma_in_desc_addr, 1);
++			dwc_otg_ep_free_desc_chain(dev,
++						   dev_if->out_desc_addr,
++						   dev_if->dma_out_desc_addr,
++						   1);
++		}
++	} else {
++		DWC_FREE(pcd->setup_pkt);
++		DWC_FREE(pcd->status_buf);
++	}
++	DWC_SPINLOCK_FREE(pcd->lock);
++	/* Set core_if's lock pointer to NULL */
++	pcd->core_if->lock = NULL;
++
++	DWC_TASK_FREE(pcd->start_xfer_tasklet);
++	DWC_TASK_FREE(pcd->test_mode_tasklet);
++	if (pcd->core_if->core_params->dev_out_nak) {
++		for (i = 0; i < MAX_EPS_CHANNELS; i++) {
++			if (pcd->core_if->ep_xfer_timer[i]) {
++					DWC_TIMER_FREE(pcd->core_if->ep_xfer_timer[i]);
++			}
++		}
++	}
++
++/* Release the CFI object's dynamic memory */
++#ifdef DWC_UTE_CFI
++	if (pcd->cfi->ops.release) {
++		pcd->cfi->ops.release(pcd->cfi);
++	}
++#endif
++
++	DWC_FREE(pcd);
++}
++
++/**
++ * Returns whether registered pcd is dual speed or not
++ */
++uint32_t dwc_otg_pcd_is_dualspeed(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++	if ((core_if->core_params->speed == DWC_SPEED_PARAM_FULL) ||
++	    ((core_if->hwcfg2.b.hs_phy_type == 2) &&
++	     (core_if->hwcfg2.b.fs_phy_type == 1) &&
++	     (core_if->core_params->ulpi_fs_ls))) {
++		return 0;
++	}
++
++	return 1;
++}
++
++/**
++ * Returns whether registered pcd is OTG capable or not
++ */
++uint32_t dwc_otg_pcd_is_otg(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	gusbcfg_data_t usbcfg = {.d32 = 0 };
++
++	usbcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->gusbcfg);
++	if (!usbcfg.b.srpcap || !usbcfg.b.hnpcap) {
++		return 0;
++	}
++
++	return 1;
++}
++
++/**
++ * This function assigns periodic Tx FIFO to an periodic EP
++ * in shared Tx FIFO mode
++ */
++static uint32_t assign_tx_fifo(dwc_otg_core_if_t * core_if)
++{
++	uint32_t TxMsk = 1;
++	int i;
++
++	for (i = 0; i < core_if->hwcfg4.b.num_in_eps; ++i) {
++		if ((TxMsk & core_if->tx_msk) == 0) {
++			core_if->tx_msk |= TxMsk;
++			return i + 1;
++		}
++		TxMsk <<= 1;
++	}
++	return 0;
++}
++
++/**
++ * This function assigns periodic Tx FIFO to an periodic EP
++ * in shared Tx FIFO mode
++ */
++static uint32_t assign_perio_tx_fifo(dwc_otg_core_if_t * core_if)
++{
++	uint32_t PerTxMsk = 1;
++	int i;
++	for (i = 0; i < core_if->hwcfg4.b.num_dev_perio_in_ep; ++i) {
++		if ((PerTxMsk & core_if->p_tx_msk) == 0) {
++			core_if->p_tx_msk |= PerTxMsk;
++			return i + 1;
++		}
++		PerTxMsk <<= 1;
++	}
++	return 0;
++}
++
++/**
++ * This function releases periodic Tx FIFO
++ * in shared Tx FIFO mode
++ */
++static void release_perio_tx_fifo(dwc_otg_core_if_t * core_if,
++				  uint32_t fifo_num)
++{
++	core_if->p_tx_msk =
++	    (core_if->p_tx_msk & (1 << (fifo_num - 1))) ^ core_if->p_tx_msk;
++}
++
++/**
++ * This function releases periodic Tx FIFO
++ * in shared Tx FIFO mode
++ */
++static void release_tx_fifo(dwc_otg_core_if_t * core_if, uint32_t fifo_num)
++{
++	core_if->tx_msk =
++	    (core_if->tx_msk & (1 << (fifo_num - 1))) ^ core_if->tx_msk;
++}
++
++/**
++ * This function is being called from gadget
++ * to enable PCD endpoint.
++ */
++int dwc_otg_pcd_ep_enable(dwc_otg_pcd_t * pcd,
++			  const uint8_t * ep_desc, void *usb_ep)
++{
++	int num, dir;
++	dwc_otg_pcd_ep_t *ep = NULL;
++	const usb_endpoint_descriptor_t *desc;
++	dwc_irqflags_t flags;
++	fifosize_data_t dptxfsiz = {.d32 = 0 };
++	gdfifocfg_data_t gdfifocfg = {.d32 = 0 };
++	gdfifocfg_data_t gdfifocfgbase = {.d32 = 0 };
++	int retval = 0;
++	int i, epcount;
++	struct device *dev = dwc_otg_pcd_to_dev(pcd);
++
++	desc = (const usb_endpoint_descriptor_t *)ep_desc;
++
++	if (!desc) {
++		pcd->ep0.priv = usb_ep;
++		ep = &pcd->ep0;
++		retval = -DWC_E_INVALID;
++		goto out;
++	}
++
++	num = UE_GET_ADDR(desc->bEndpointAddress);
++	dir = UE_GET_DIR(desc->bEndpointAddress);
++
++	if (!desc->wMaxPacketSize) {
++		DWC_WARN("bad maxpacketsize\n");
++		retval = -DWC_E_INVALID;
++		goto out;
++	}
++
++	if (dir == UE_DIR_IN) {
++		epcount = pcd->core_if->dev_if->num_in_eps;
++		for (i = 0; i < epcount; i++) {
++			if (num == pcd->in_ep[i].dwc_ep.num) {
++				ep = &pcd->in_ep[i];
++				break;
++			}
++		}
++	} else {
++		epcount = pcd->core_if->dev_if->num_out_eps;
++		for (i = 0; i < epcount; i++) {
++			if (num == pcd->out_ep[i].dwc_ep.num) {
++				ep = &pcd->out_ep[i];
++				break;
++			}
++		}
++	}
++
++	if (!ep) {
++		DWC_WARN("bad address\n");
++		retval = -DWC_E_INVALID;
++		goto out;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++
++	ep->desc = desc;
++	ep->priv = usb_ep;
++
++	/*
++	 * Activate the EP
++	 */
++	ep->stopped = 0;
++
++	ep->dwc_ep.is_in = (dir == UE_DIR_IN);
++	ep->dwc_ep.maxpacket = UGETW(desc->wMaxPacketSize);
++
++	ep->dwc_ep.type = desc->bmAttributes & UE_XFERTYPE;
++
++	if (ep->dwc_ep.is_in) {
++		if (!GET_CORE_IF(pcd)->en_multiple_tx_fifo) {
++			ep->dwc_ep.tx_fifo_num = 0;
++
++			if (ep->dwc_ep.type == UE_ISOCHRONOUS) {
++				/*
++				 * if ISOC EP then assign a Periodic Tx FIFO.
++				 */
++				ep->dwc_ep.tx_fifo_num =
++				    assign_perio_tx_fifo(GET_CORE_IF(pcd));
++			}
++		} else {
++			/*
++			 * if Dedicated FIFOs mode is on then assign a Tx FIFO.
++			 */
++			ep->dwc_ep.tx_fifo_num =
++			    assign_tx_fifo(GET_CORE_IF(pcd));
++		}
++
++		/* Calculating EP info controller base address */
++		if (ep->dwc_ep.tx_fifo_num
++		    && GET_CORE_IF(pcd)->en_multiple_tx_fifo) {
++			gdfifocfg.d32 =
++			    DWC_READ_REG32(&GET_CORE_IF(pcd)->
++					   core_global_regs->gdfifocfg);
++			gdfifocfgbase.d32 = gdfifocfg.d32 >> 16;
++			dptxfsiz.d32 =
++			    (DWC_READ_REG32
++			     (&GET_CORE_IF(pcd)->core_global_regs->
++			      dtxfsiz[ep->dwc_ep.tx_fifo_num - 1]) >> 16);
++			gdfifocfg.b.epinfobase =
++			    gdfifocfgbase.d32 + dptxfsiz.d32;
++			if (GET_CORE_IF(pcd)->snpsid <= OTG_CORE_REV_2_94a) {
++				DWC_WRITE_REG32(&GET_CORE_IF(pcd)->
++						core_global_regs->gdfifocfg,
++						gdfifocfg.d32);
++			}
++		}
++	}
++	/* Set initial data PID. */
++	if (ep->dwc_ep.type == UE_BULK) {
++		ep->dwc_ep.data_pid_start = 0;
++	}
++
++	/* Alloc DMA Descriptors */
++	if (GET_CORE_IF(pcd)->dma_desc_enable) {
++#ifndef DWC_UTE_PER_IO
++		if (ep->dwc_ep.type != UE_ISOCHRONOUS) {
++#endif
++			ep->dwc_ep.desc_addr =
++			    dwc_otg_ep_alloc_desc_chain(dev,
++						&ep->dwc_ep.dma_desc_addr,
++						MAX_DMA_DESC_CNT);
++			if (!ep->dwc_ep.desc_addr) {
++				DWC_WARN("%s, can't allocate DMA descriptor\n",
++					 __func__);
++				retval = -DWC_E_SHUTDOWN;
++				DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++				goto out;
++			}
++#ifndef DWC_UTE_PER_IO
++		}
++#endif
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "Activate %s: type=%d, mps=%d desc=%p\n",
++		    (ep->dwc_ep.is_in ? "IN" : "OUT"),
++		    ep->dwc_ep.type, ep->dwc_ep.maxpacket, ep->desc);
++#ifdef DWC_UTE_PER_IO
++	ep->dwc_ep.xiso_bInterval = 1 << (ep->desc->bInterval - 1);
++#endif
++	if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++		ep->dwc_ep.bInterval = 1 << (ep->desc->bInterval - 1);
++		ep->dwc_ep.frame_num = 0xFFFFFFFF;
++	}
++
++	dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep);
++
++#ifdef DWC_UTE_CFI
++	if (pcd->cfi->ops.ep_enable) {
++		pcd->cfi->ops.ep_enable(pcd->cfi, pcd, ep);
++	}
++#endif
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++out:
++	return retval;
++}
++
++/**
++ * This function is being called from gadget
++ * to disable PCD endpoint.
++ */
++int dwc_otg_pcd_ep_disable(dwc_otg_pcd_t * pcd, void *ep_handle)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_irqflags_t flags;
++	dwc_otg_dev_dma_desc_t *desc_addr;
++	dwc_dma_t dma_desc_addr;
++	gdfifocfg_data_t gdfifocfgbase = {.d32 = 0 };
++	gdfifocfg_data_t gdfifocfg = {.d32 = 0 };
++	fifosize_data_t dptxfsiz = {.d32 = 0 };
++	struct device *dev = dwc_otg_pcd_to_dev(pcd);
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++
++	if (!ep || !ep->desc) {
++		DWC_DEBUGPL(DBG_PCD, "bad ep address\n");
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++
++	dwc_otg_request_nuke(ep);
++
++	dwc_otg_ep_deactivate(GET_CORE_IF(pcd), &ep->dwc_ep);
++	if (pcd->core_if->core_params->dev_out_nak) {
++		DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[ep->dwc_ep.num]);
++		pcd->core_if->ep_xfer_info[ep->dwc_ep.num].state = 0;
++	}
++	ep->desc = NULL;
++	ep->stopped = 1;
++
++	gdfifocfg.d32 =
++	    DWC_READ_REG32(&GET_CORE_IF(pcd)->core_global_regs->gdfifocfg);
++	gdfifocfgbase.d32 = gdfifocfg.d32 >> 16;
++
++	if (ep->dwc_ep.is_in) {
++		if (GET_CORE_IF(pcd)->en_multiple_tx_fifo) {
++			/* Flush the Tx FIFO */
++			dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd),
++					      ep->dwc_ep.tx_fifo_num);
++		}
++		release_perio_tx_fifo(GET_CORE_IF(pcd), ep->dwc_ep.tx_fifo_num);
++		release_tx_fifo(GET_CORE_IF(pcd), ep->dwc_ep.tx_fifo_num);
++		if (GET_CORE_IF(pcd)->en_multiple_tx_fifo) {
++			/* Decreasing EPinfo Base Addr */
++			dptxfsiz.d32 =
++			    (DWC_READ_REG32
++			     (&GET_CORE_IF(pcd)->
++				core_global_regs->dtxfsiz[ep->dwc_ep.tx_fifo_num-1]) >> 16);
++			gdfifocfg.b.epinfobase = gdfifocfgbase.d32 - dptxfsiz.d32;
++			if (GET_CORE_IF(pcd)->snpsid <= OTG_CORE_REV_2_94a) {
++				DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gdfifocfg,
++					gdfifocfg.d32);
++			}
++		}
++	}
++
++	/* Free DMA Descriptors */
++	if (GET_CORE_IF(pcd)->dma_desc_enable) {
++		if (ep->dwc_ep.type != UE_ISOCHRONOUS) {
++			desc_addr = ep->dwc_ep.desc_addr;
++			dma_desc_addr = ep->dwc_ep.dma_desc_addr;
++
++			/* Cannot call dma_free_coherent() with IRQs disabled */
++			DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++			dwc_otg_ep_free_desc_chain(dev, desc_addr, dma_desc_addr,
++						   MAX_DMA_DESC_CNT);
++
++			goto out_unlocked;
++		}
++	}
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++out_unlocked:
++	DWC_DEBUGPL(DBG_PCD, "%d %s disabled\n", ep->dwc_ep.num,
++		    ep->dwc_ep.is_in ? "IN" : "OUT");
++	return 0;
++
++}
++
++/******************************************************************************/
++#ifdef DWC_UTE_PER_IO
++
++/**
++ * Free the request and its extended parts
++ *
++ */
++void dwc_pcd_xiso_ereq_free(dwc_otg_pcd_ep_t * ep, dwc_otg_pcd_request_t * req)
++{
++	DWC_FREE(req->ext_req.per_io_frame_descs);
++	DWC_FREE(req);
++}
++
++/**
++ * Start the next request in the endpoint's queue.
++ *
++ */
++int dwc_otg_pcd_xiso_start_next_request(dwc_otg_pcd_t * pcd,
++					dwc_otg_pcd_ep_t * ep)
++{
++	int i;
++	dwc_otg_pcd_request_t *req = NULL;
++	dwc_ep_t *dwcep = NULL;
++	struct dwc_iso_xreq_port *ereq = NULL;
++	struct dwc_iso_pkt_desc_port *ddesc_iso;
++	uint16_t nat;
++	depctl_data_t diepctl;
++
++	dwcep = &ep->dwc_ep;
++
++	if (dwcep->xiso_active_xfers > 0) {
++#if 0	//Disable this to decrease s/w overhead that is crucial for Isoc transfers
++		DWC_WARN("There are currently active transfers for EP%d \
++				(active=%d; queued=%d)", dwcep->num, dwcep->xiso_active_xfers,
++				dwcep->xiso_queued_xfers);
++#endif
++		return 0;
++	}
++
++	nat = UGETW(ep->desc->wMaxPacketSize);
++	nat = (nat >> 11) & 0x03;
++
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		req = DWC_CIRCLEQ_FIRST(&ep->queue);
++		ereq = &req->ext_req;
++		ep->stopped = 0;
++
++		/* Get the frame number */
++		dwcep->xiso_frame_num =
++		    dwc_otg_get_frame_number(GET_CORE_IF(pcd));
++		DWC_DEBUG("FRM_NUM=%d", dwcep->xiso_frame_num);
++
++		ddesc_iso = ereq->per_io_frame_descs;
++
++		if (dwcep->is_in) {
++			/* Setup DMA Descriptor chain for IN Isoc request */
++			for (i = 0; i < ereq->pio_pkt_count; i++) {
++				//if ((i % (nat + 1)) == 0)
++				if ( i > 0 )
++					dwcep->xiso_frame_num =
++					    (dwcep->xiso_bInterval +
++										dwcep->xiso_frame_num) & 0x3FFF;
++				dwcep->desc_addr[i].buf =
++				    req->dma + ddesc_iso[i].offset;
++				dwcep->desc_addr[i].status.b_iso_in.txbytes =
++				    ddesc_iso[i].length;
++				dwcep->desc_addr[i].status.b_iso_in.framenum =
++				    dwcep->xiso_frame_num;
++				dwcep->desc_addr[i].status.b_iso_in.bs =
++				    BS_HOST_READY;
++				dwcep->desc_addr[i].status.b_iso_in.txsts = 0;
++				dwcep->desc_addr[i].status.b_iso_in.sp =
++				    (ddesc_iso[i].length %
++				     dwcep->maxpacket) ? 1 : 0;
++				dwcep->desc_addr[i].status.b_iso_in.ioc = 0;
++				dwcep->desc_addr[i].status.b_iso_in.pid = nat + 1;
++				dwcep->desc_addr[i].status.b_iso_in.l = 0;
++
++				/* Process the last descriptor */
++				if (i == ereq->pio_pkt_count - 1) {
++					dwcep->desc_addr[i].status.b_iso_in.ioc = 1;
++					dwcep->desc_addr[i].status.b_iso_in.l = 1;
++				}
++			}
++
++			/* Setup and start the transfer for this endpoint */
++			dwcep->xiso_active_xfers++;
++			DWC_WRITE_REG32(&GET_CORE_IF(pcd)->dev_if->
++					in_ep_regs[dwcep->num]->diepdma,
++					dwcep->dma_desc_addr);
++			diepctl.d32 = 0;
++			diepctl.b.epena = 1;
++			diepctl.b.cnak = 1;
++			DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->dev_if->
++					 in_ep_regs[dwcep->num]->diepctl, 0,
++					 diepctl.d32);
++		} else {
++			/* Setup DMA Descriptor chain for OUT Isoc request */
++			for (i = 0; i < ereq->pio_pkt_count; i++) {
++				//if ((i % (nat + 1)) == 0)
++				dwcep->xiso_frame_num = (dwcep->xiso_bInterval +
++										dwcep->xiso_frame_num) & 0x3FFF;
++				dwcep->desc_addr[i].buf =
++				    req->dma + ddesc_iso[i].offset;
++				dwcep->desc_addr[i].status.b_iso_out.rxbytes =
++				    ddesc_iso[i].length;
++				dwcep->desc_addr[i].status.b_iso_out.framenum =
++				    dwcep->xiso_frame_num;
++				dwcep->desc_addr[i].status.b_iso_out.bs =
++				    BS_HOST_READY;
++				dwcep->desc_addr[i].status.b_iso_out.rxsts = 0;
++				dwcep->desc_addr[i].status.b_iso_out.sp =
++				    (ddesc_iso[i].length %
++				     dwcep->maxpacket) ? 1 : 0;
++				dwcep->desc_addr[i].status.b_iso_out.ioc = 0;
++				dwcep->desc_addr[i].status.b_iso_out.pid = nat + 1;
++				dwcep->desc_addr[i].status.b_iso_out.l = 0;
++
++				/* Process the last descriptor */
++				if (i == ereq->pio_pkt_count - 1) {
++					dwcep->desc_addr[i].status.b_iso_out.ioc = 1;
++					dwcep->desc_addr[i].status.b_iso_out.l = 1;
++				}
++			}
++
++			/* Setup and start the transfer for this endpoint */
++			dwcep->xiso_active_xfers++;
++			DWC_WRITE_REG32(&GET_CORE_IF(pcd)->
++					dev_if->out_ep_regs[dwcep->num]->
++					doepdma, dwcep->dma_desc_addr);
++			diepctl.d32 = 0;
++			diepctl.b.epena = 1;
++			diepctl.b.cnak = 1;
++			DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->
++					 dev_if->out_ep_regs[dwcep->num]->
++					 doepctl, 0, diepctl.d32);
++		}
++
++	} else {
++		ep->stopped = 1;
++	}
++
++	return 0;
++}
++
++/**
++ *	- Remove the request from the queue
++ */
++void complete_xiso_ep(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_pcd_request_t *req = NULL;
++	struct dwc_iso_xreq_port *ereq = NULL;
++	struct dwc_iso_pkt_desc_port *ddesc_iso = NULL;
++	dwc_ep_t *dwcep = NULL;
++	int i;
++
++	//DWC_DEBUG();
++	dwcep = &ep->dwc_ep;
++
++	/* Get the first pending request from the queue */
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		req = DWC_CIRCLEQ_FIRST(&ep->queue);
++		if (!req) {
++			DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep);
++			return;
++		}
++		dwcep->xiso_active_xfers--;
++		dwcep->xiso_queued_xfers--;
++		/* Remove this request from the queue */
++		DWC_CIRCLEQ_REMOVE_INIT(&ep->queue, req, queue_entry);
++	} else {
++		DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep);
++		return;
++	}
++
++	ep->stopped = 1;
++	ereq = &req->ext_req;
++	ddesc_iso = ereq->per_io_frame_descs;
++
++	if (dwcep->xiso_active_xfers < 0) {
++		DWC_WARN("EP#%d (xiso_active_xfers=%d)", dwcep->num,
++			 dwcep->xiso_active_xfers);
++	}
++
++	/* Fill the Isoc descs of portable extended req from dma descriptors */
++	for (i = 0; i < ereq->pio_pkt_count; i++) {
++		if (dwcep->is_in) {	/* IN endpoints */
++			ddesc_iso[i].actual_length = ddesc_iso[i].length -
++			    dwcep->desc_addr[i].status.b_iso_in.txbytes;
++			ddesc_iso[i].status =
++			    dwcep->desc_addr[i].status.b_iso_in.txsts;
++		} else {	/* OUT endpoints */
++			ddesc_iso[i].actual_length = ddesc_iso[i].length -
++			    dwcep->desc_addr[i].status.b_iso_out.rxbytes;
++			ddesc_iso[i].status =
++			    dwcep->desc_addr[i].status.b_iso_out.rxsts;
++		}
++	}
++
++	DWC_SPINUNLOCK(ep->pcd->lock);
++
++	/* Call the completion function in the non-portable logic */
++	ep->pcd->fops->xisoc_complete(ep->pcd, ep->priv, req->priv, 0,
++				      &req->ext_req);
++
++	DWC_SPINLOCK(ep->pcd->lock);
++
++	/* Free the request - specific freeing needed for extended request object */
++	dwc_pcd_xiso_ereq_free(ep, req);
++
++	/* Start the next request */
++	dwc_otg_pcd_xiso_start_next_request(ep->pcd, ep);
++
++	return;
++}
++
++/**
++ * Create and initialize the Isoc pkt descriptors of the extended request.
++ *
++ */
++static int dwc_otg_pcd_xiso_create_pkt_descs(dwc_otg_pcd_request_t * req,
++					     void *ereq_nonport,
++					     int atomic_alloc)
++{
++	struct dwc_iso_xreq_port *ereq = NULL;
++	struct dwc_iso_xreq_port *req_mapped = NULL;
++	struct dwc_iso_pkt_desc_port *ipds = NULL;	/* To be created in this function */
++	uint32_t pkt_count;
++	int i;
++
++	ereq = &req->ext_req;
++	req_mapped = (struct dwc_iso_xreq_port *)ereq_nonport;
++	pkt_count = req_mapped->pio_pkt_count;
++
++	/* Create the isoc descs */
++	if (atomic_alloc) {
++		ipds = DWC_ALLOC_ATOMIC(sizeof(*ipds) * pkt_count);
++	} else {
++		ipds = DWC_ALLOC(sizeof(*ipds) * pkt_count);
++	}
++
++	if (!ipds) {
++		DWC_ERROR("Failed to allocate isoc descriptors");
++		return -DWC_E_NO_MEMORY;
++	}
++
++	/* Initialize the extended request fields */
++	ereq->per_io_frame_descs = ipds;
++	ereq->error_count = 0;
++	ereq->pio_alloc_pkt_count = pkt_count;
++	ereq->pio_pkt_count = pkt_count;
++	ereq->tr_sub_flags = req_mapped->tr_sub_flags;
++
++	/* Init the Isoc descriptors */
++	for (i = 0; i < pkt_count; i++) {
++		ipds[i].length = req_mapped->per_io_frame_descs[i].length;
++		ipds[i].offset = req_mapped->per_io_frame_descs[i].offset;
++		ipds[i].status = req_mapped->per_io_frame_descs[i].status;	/* 0 */
++		ipds[i].actual_length =
++		    req_mapped->per_io_frame_descs[i].actual_length;
++	}
++
++	return 0;
++}
++
++static void prn_ext_request(struct dwc_iso_xreq_port *ereq)
++{
++	struct dwc_iso_pkt_desc_port *xfd = NULL;
++	int i;
++
++	DWC_DEBUG("per_io_frame_descs=%p", ereq->per_io_frame_descs);
++	DWC_DEBUG("tr_sub_flags=%d", ereq->tr_sub_flags);
++	DWC_DEBUG("error_count=%d", ereq->error_count);
++	DWC_DEBUG("pio_alloc_pkt_count=%d", ereq->pio_alloc_pkt_count);
++	DWC_DEBUG("pio_pkt_count=%d", ereq->pio_pkt_count);
++	DWC_DEBUG("res=%d", ereq->res);
++
++	for (i = 0; i < ereq->pio_pkt_count; i++) {
++		xfd = &ereq->per_io_frame_descs[0];
++		DWC_DEBUG("FD #%d", i);
++
++		DWC_DEBUG("xfd->actual_length=%d", xfd->actual_length);
++		DWC_DEBUG("xfd->length=%d", xfd->length);
++		DWC_DEBUG("xfd->offset=%d", xfd->offset);
++		DWC_DEBUG("xfd->status=%d", xfd->status);
++	}
++}
++
++/**
++ *
++ */
++int dwc_otg_pcd_xiso_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle,
++			      uint8_t * buf, dwc_dma_t dma_buf, uint32_t buflen,
++			      int zero, void *req_handle, int atomic_alloc,
++			      void *ereq_nonport)
++{
++	dwc_otg_pcd_request_t *req = NULL;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_irqflags_t flags;
++	int res;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++
++	/* We support this extension only for DDMA mode */
++	if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC)
++		if (!GET_CORE_IF(pcd)->dma_desc_enable)
++			return -DWC_E_INVALID;
++
++	/* Create a dwc_otg_pcd_request_t object */
++	if (atomic_alloc) {
++		req = DWC_ALLOC_ATOMIC(sizeof(*req));
++	} else {
++		req = DWC_ALLOC(sizeof(*req));
++	}
++
++	if (!req) {
++		return -DWC_E_NO_MEMORY;
++	}
++
++	/* Create the Isoc descs for this request which shall be the exact match
++	 * of the structure sent to us from the non-portable logic */
++	res =
++	    dwc_otg_pcd_xiso_create_pkt_descs(req, ereq_nonport, atomic_alloc);
++	if (res) {
++		DWC_WARN("Failed to init the Isoc descriptors");
++		DWC_FREE(req);
++		return res;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++
++	DWC_CIRCLEQ_INIT_ENTRY(req, queue_entry);
++	req->buf = buf;
++	req->dma = dma_buf;
++	req->length = buflen;
++	req->sent_zlp = zero;
++	req->priv = req_handle;
++
++	//DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	ep->dwc_ep.dma_addr = dma_buf;
++	ep->dwc_ep.start_xfer_buff = buf;
++	ep->dwc_ep.xfer_buff = buf;
++	ep->dwc_ep.xfer_len = 0;
++	ep->dwc_ep.xfer_count = 0;
++	ep->dwc_ep.sent_zlp = 0;
++	ep->dwc_ep.total_len = buflen;
++
++	/* Add this request to the tail */
++	DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry);
++	ep->dwc_ep.xiso_queued_xfers++;
++
++//DWC_DEBUG("CP_0");
++//DWC_DEBUG("req->ext_req.tr_sub_flags=%d", req->ext_req.tr_sub_flags);
++//prn_ext_request((struct dwc_iso_xreq_port *) ereq_nonport);
++//prn_ext_request(&req->ext_req);
++
++	//DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	/* If the req->status == ASAP  then check if there is any active transfer
++	 * for this endpoint. If no active transfers, then get the first entry
++	 * from the queue and start that transfer
++	 */
++	if (req->ext_req.tr_sub_flags == DWC_EREQ_TF_ASAP) {
++		res = dwc_otg_pcd_xiso_start_next_request(pcd, ep);
++		if (res) {
++			DWC_WARN("Failed to start the next Isoc transfer");
++			DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++			DWC_FREE(req);
++			return res;
++		}
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++	return 0;
++}
++
++#endif
++/* END ifdef DWC_UTE_PER_IO ***************************************************/
++int dwc_otg_pcd_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle,
++			 uint8_t * buf, dwc_dma_t dma_buf, uint32_t buflen,
++			 int zero, void *req_handle, int atomic_alloc)
++{
++	struct device *dev = dwc_otg_pcd_to_dev(pcd);
++	dwc_irqflags_t flags;
++	dwc_otg_pcd_request_t *req;
++	dwc_otg_pcd_ep_t *ep;
++	uint32_t max_transfer;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep || (!ep->desc && ep->dwc_ep.num != 0)) {
++		DWC_WARN("bad ep\n");
++		return -DWC_E_INVALID;
++	}
++
++	if (atomic_alloc) {
++		req = DWC_ALLOC_ATOMIC(sizeof(*req));
++	} else {
++		req = DWC_ALLOC(sizeof(*req));
++	}
++
++	if (!req) {
++		return -DWC_E_NO_MEMORY;
++	}
++	DWC_CIRCLEQ_INIT_ENTRY(req, queue_entry);
++	if (!GET_CORE_IF(pcd)->core_params->opt) {
++		if (ep->dwc_ep.num != 0) {
++			DWC_ERROR("queue req %p, len %d buf %p\n",
++				  req_handle, buflen, buf);
++		}
++	}
++
++	req->buf = buf;
++	req->dma = dma_buf;
++	req->length = buflen;
++	req->sent_zlp = zero;
++	req->priv = req_handle;
++	req->dw_align_buf = NULL;
++	if ((dma_buf & 0x3) && GET_CORE_IF(pcd)->dma_enable
++			&& !GET_CORE_IF(pcd)->dma_desc_enable)
++		req->dw_align_buf = DWC_DMA_ALLOC(dev, buflen,
++				 &req->dw_align_buf_dma);
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++
++	/*
++	 * After adding request to the queue for IN ISOC wait for In Token Received
++	 * when TX FIFO is empty interrupt and for OUT ISOC wait for OUT Token
++	 * Received when EP is disabled interrupt to obtain starting microframe
++	 * (odd/even) start transfer
++	 */
++	if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++		if (req != 0) {
++			depctl_data_t depctl = {.d32 =
++				    DWC_READ_REG32(&pcd->core_if->dev_if->
++						   in_ep_regs[ep->dwc_ep.num]->
++						   diepctl) };
++			++pcd->request_pending;
++
++			DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry);
++			if (ep->dwc_ep.is_in) {
++				depctl.b.cnak = 1;
++				DWC_WRITE_REG32(&pcd->core_if->dev_if->
++						in_ep_regs[ep->dwc_ep.num]->
++						diepctl, depctl.d32);
++			}
++
++			DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++		}
++		return 0;
++	}
++
++	/*
++	 * For EP0 IN without premature status, zlp is required?
++	 */
++	if (ep->dwc_ep.num == 0 && ep->dwc_ep.is_in) {
++		DWC_DEBUGPL(DBG_PCDV, "%d-OUT ZLP\n", ep->dwc_ep.num);
++		//_req->zero = 1;
++	}
++
++	/* Start the transfer */
++	if (DWC_CIRCLEQ_EMPTY(&ep->queue) && !ep->stopped) {
++		/* EP0 Transfer? */
++		if (ep->dwc_ep.num == 0) {
++			switch (pcd->ep0state) {
++			case EP0_IN_DATA_PHASE:
++				DWC_DEBUGPL(DBG_PCD,
++					    "%s ep0: EP0_IN_DATA_PHASE\n",
++					    __func__);
++				break;
++
++			case EP0_OUT_DATA_PHASE:
++				DWC_DEBUGPL(DBG_PCD,
++					    "%s ep0: EP0_OUT_DATA_PHASE\n",
++					    __func__);
++				if (pcd->request_config) {
++					/* Complete STATUS PHASE */
++					ep->dwc_ep.is_in = 1;
++					pcd->ep0state = EP0_IN_STATUS_PHASE;
++				}
++				break;
++
++			case EP0_IN_STATUS_PHASE:
++				DWC_DEBUGPL(DBG_PCD,
++					    "%s ep0: EP0_IN_STATUS_PHASE\n",
++					    __func__);
++				break;
++
++			default:
++				DWC_DEBUGPL(DBG_ANY, "ep0: odd state %d\n",
++					    pcd->ep0state);
++				DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++				return -DWC_E_SHUTDOWN;
++			}
++
++			ep->dwc_ep.dma_addr = dma_buf;
++			ep->dwc_ep.start_xfer_buff = buf;
++			ep->dwc_ep.xfer_buff = buf;
++			ep->dwc_ep.xfer_len = buflen;
++			ep->dwc_ep.xfer_count = 0;
++			ep->dwc_ep.sent_zlp = 0;
++			ep->dwc_ep.total_len = ep->dwc_ep.xfer_len;
++
++			if (zero) {
++				if ((ep->dwc_ep.xfer_len %
++				     ep->dwc_ep.maxpacket == 0)
++				    && (ep->dwc_ep.xfer_len != 0)) {
++					ep->dwc_ep.sent_zlp = 1;
++				}
++
++			}
++
++			dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd),
++						   &ep->dwc_ep);
++		}		// non-ep0 endpoints
++		else {
++#ifdef DWC_UTE_CFI
++			if (ep->dwc_ep.buff_mode != BM_STANDARD) {
++				/* store the request length */
++				ep->dwc_ep.cfi_req_len = buflen;
++				pcd->cfi->ops.build_descriptors(pcd->cfi, pcd,
++								ep, req);
++			} else {
++#endif
++				max_transfer =
++				    GET_CORE_IF(ep->pcd)->core_params->
++				    max_transfer_size;
++
++				/* Setup and start the Transfer */
++				if (req->dw_align_buf){
++					if (ep->dwc_ep.is_in)
++						dwc_memcpy(req->dw_align_buf,
++							   buf, buflen);
++					ep->dwc_ep.dma_addr =
++					    req->dw_align_buf_dma;
++					ep->dwc_ep.start_xfer_buff =
++					    req->dw_align_buf;
++					ep->dwc_ep.xfer_buff =
++					    req->dw_align_buf;
++				} else {
++					ep->dwc_ep.dma_addr = dma_buf;
++					ep->dwc_ep.start_xfer_buff = buf;
++                                        ep->dwc_ep.xfer_buff = buf;
++				}
++				ep->dwc_ep.xfer_len = 0;
++				ep->dwc_ep.xfer_count = 0;
++				ep->dwc_ep.sent_zlp = 0;
++				ep->dwc_ep.total_len = buflen;
++
++				ep->dwc_ep.maxxfer = max_transfer;
++				if (GET_CORE_IF(pcd)->dma_desc_enable) {
++					uint32_t out_max_xfer =
++					    DDMA_MAX_TRANSFER_SIZE -
++					    (DDMA_MAX_TRANSFER_SIZE % 4);
++					if (ep->dwc_ep.is_in) {
++						if (ep->dwc_ep.maxxfer >
++						    DDMA_MAX_TRANSFER_SIZE) {
++							ep->dwc_ep.maxxfer =
++							    DDMA_MAX_TRANSFER_SIZE;
++						}
++					} else {
++						if (ep->dwc_ep.maxxfer >
++						    out_max_xfer) {
++							ep->dwc_ep.maxxfer =
++							    out_max_xfer;
++						}
++					}
++				}
++				if (ep->dwc_ep.maxxfer < ep->dwc_ep.total_len) {
++					ep->dwc_ep.maxxfer -=
++					    (ep->dwc_ep.maxxfer %
++					     ep->dwc_ep.maxpacket);
++				}
++
++				if (zero) {
++					if ((ep->dwc_ep.total_len %
++					     ep->dwc_ep.maxpacket == 0)
++					    && (ep->dwc_ep.total_len != 0)) {
++						ep->dwc_ep.sent_zlp = 1;
++					}
++				}
++#ifdef DWC_UTE_CFI
++			}
++#endif
++			dwc_otg_ep_start_transfer(GET_CORE_IF(pcd),
++						  &ep->dwc_ep);
++		}
++	}
++
++	if (req != 0) {
++		++pcd->request_pending;
++		DWC_CIRCLEQ_INSERT_TAIL(&ep->queue, req, queue_entry);
++		if (ep->dwc_ep.is_in && ep->stopped
++		    && !(GET_CORE_IF(pcd)->dma_enable)) {
++			/** @todo NGS Create a function for this. */
++			diepmsk_data_t diepmsk = {.d32 = 0 };
++			diepmsk.b.intktxfemp = 1;
++			if (GET_CORE_IF(pcd)->multiproc_int_enable) {
++				DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->
++						 dev_if->dev_global_regs->diepeachintmsk
++						 [ep->dwc_ep.num], 0,
++						 diepmsk.d32);
++			} else {
++				DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->
++						 dev_if->dev_global_regs->
++						 diepmsk, 0, diepmsk.d32);
++			}
++
++		}
++	}
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	return 0;
++}
++
++int dwc_otg_pcd_ep_dequeue(dwc_otg_pcd_t * pcd, void *ep_handle,
++			   void *req_handle)
++{
++	dwc_irqflags_t flags;
++	dwc_otg_pcd_request_t *req;
++	dwc_otg_pcd_ep_t *ep;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++	if (!ep || (!ep->desc && ep->dwc_ep.num != 0)) {
++		DWC_WARN("bad argument\n");
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++
++	/* make sure it's actually queued on this endpoint */
++	DWC_CIRCLEQ_FOREACH(req, &ep->queue, queue_entry) {
++		if (req->priv == (void *)req_handle) {
++			break;
++		}
++	}
++
++	if (req->priv != (void *)req_handle) {
++		DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++		return -DWC_E_INVALID;
++	}
++
++	if (!DWC_CIRCLEQ_EMPTY_ENTRY(req, queue_entry)) {
++		dwc_otg_request_done(ep, req, -DWC_E_RESTART);
++	} else {
++		req = NULL;
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	return req ? 0 : -DWC_E_SHUTDOWN;
++
++}
++
++/**
++ * dwc_otg_pcd_ep_wedge - sets the halt feature and ignores clear requests
++ *
++ * Use this to stall an endpoint and ignore CLEAR_FEATURE(HALT_ENDPOINT)
++ * requests. If the gadget driver clears the halt status, it will
++ * automatically unwedge the endpoint.
++ *
++ * Returns zero on success, else negative DWC error code.
++ */
++int dwc_otg_pcd_ep_wedge(dwc_otg_pcd_t * pcd, void *ep_handle)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_irqflags_t flags;
++	int retval = 0;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++
++	if ((!ep->desc && ep != &pcd->ep0) ||
++	    (ep->desc && (ep->desc->bmAttributes == UE_ISOCHRONOUS))) {
++		DWC_WARN("%s, bad ep\n", __func__);
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		DWC_WARN("%d %s XFer In process\n", ep->dwc_ep.num,
++			 ep->dwc_ep.is_in ? "IN" : "OUT");
++		retval = -DWC_E_AGAIN;
++	} else {
++                /* This code needs to be reviewed */
++		if (ep->dwc_ep.is_in == 1 && GET_CORE_IF(pcd)->dma_desc_enable) {
++			dtxfsts_data_t txstatus;
++			fifosize_data_t txfifosize;
++
++			txfifosize.d32 =
++			    DWC_READ_REG32(&GET_CORE_IF(pcd)->
++					   core_global_regs->dtxfsiz[ep->dwc_ep.
++								     tx_fifo_num]);
++			txstatus.d32 =
++			    DWC_READ_REG32(&GET_CORE_IF(pcd)->
++					   dev_if->in_ep_regs[ep->dwc_ep.num]->
++					   dtxfsts);
++
++			if (txstatus.b.txfspcavail < txfifosize.b.depth) {
++				DWC_WARN("%s() Data In Tx Fifo\n", __func__);
++				retval = -DWC_E_AGAIN;
++			} else {
++				if (ep->dwc_ep.num == 0) {
++					pcd->ep0state = EP0_STALL;
++				}
++
++				ep->stopped = 1;
++				dwc_otg_ep_set_stall(GET_CORE_IF(pcd),
++						     &ep->dwc_ep);
++			}
++		} else {
++			if (ep->dwc_ep.num == 0) {
++				pcd->ep0state = EP0_STALL;
++			}
++
++			ep->stopped = 1;
++			dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep->dwc_ep);
++		}
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	return retval;
++}
++
++int dwc_otg_pcd_ep_halt(dwc_otg_pcd_t * pcd, void *ep_handle, int value)
++{
++	dwc_otg_pcd_ep_t *ep;
++	dwc_irqflags_t flags;
++	int retval = 0;
++
++	ep = get_ep_from_handle(pcd, ep_handle);
++
++	if (!ep || (!ep->desc && ep != &pcd->ep0) ||
++	    (ep->desc && (ep->desc->bmAttributes == UE_ISOCHRONOUS))) {
++		DWC_WARN("%s, bad ep\n", __func__);
++		return -DWC_E_INVALID;
++	}
++
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		DWC_WARN("%d %s XFer In process\n", ep->dwc_ep.num,
++			 ep->dwc_ep.is_in ? "IN" : "OUT");
++		retval = -DWC_E_AGAIN;
++	} else if (value == 0) {
++		dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep);
++	} else if (value == 1) {
++		if (ep->dwc_ep.is_in == 1 && GET_CORE_IF(pcd)->dma_desc_enable) {
++			dtxfsts_data_t txstatus;
++			fifosize_data_t txfifosize;
++
++			txfifosize.d32 =
++			    DWC_READ_REG32(&GET_CORE_IF(pcd)->core_global_regs->
++					   dtxfsiz[ep->dwc_ep.tx_fifo_num]);
++			txstatus.d32 =
++			    DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if->
++					   in_ep_regs[ep->dwc_ep.num]->dtxfsts);
++
++			if (txstatus.b.txfspcavail < txfifosize.b.depth) {
++				DWC_WARN("%s() Data In Tx Fifo\n", __func__);
++				retval = -DWC_E_AGAIN;
++			} else {
++				if (ep->dwc_ep.num == 0) {
++					pcd->ep0state = EP0_STALL;
++				}
++
++				ep->stopped = 1;
++				dwc_otg_ep_set_stall(GET_CORE_IF(pcd),
++						     &ep->dwc_ep);
++			}
++		} else {
++			if (ep->dwc_ep.num == 0) {
++				pcd->ep0state = EP0_STALL;
++			}
++
++			ep->stopped = 1;
++			dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep->dwc_ep);
++		}
++	} else if (value == 2) {
++		ep->dwc_ep.stall_clear_flag = 0;
++	} else if (value == 3) {
++		ep->dwc_ep.stall_clear_flag = 1;
++	}
++
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++
++	return retval;
++}
++
++/**
++ * This function initiates remote wakeup of the host from suspend state.
++ */
++void dwc_otg_pcd_rem_wkup_from_suspend(dwc_otg_pcd_t * pcd, int set)
++{
++	dctl_data_t dctl = { 0 };
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dsts_data_t dsts;
++
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++	if (!dsts.b.suspsts) {
++		DWC_WARN("Remote wakeup while is not in suspend state\n");
++	}
++	/* Check if DEVICE_REMOTE_WAKEUP feature enabled */
++	if (pcd->remote_wakeup_enable) {
++		if (set) {
++
++			if (core_if->adp_enable) {
++				gpwrdn_data_t gpwrdn;
++
++				dwc_otg_adp_probe_stop(core_if);
++
++				/* Mask SRP detected interrupt from Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.srp_det_msk = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gpwrdn,
++						 gpwrdn.d32, 0);
++
++				/* Disable Power Down Logic */
++				gpwrdn.d32 = 0;
++				gpwrdn.b.pmuactv = 1;
++				DWC_MODIFY_REG32(&core_if->
++						 core_global_regs->gpwrdn,
++						 gpwrdn.d32, 0);
++
++				/*
++				 * Initialize the Core for Device mode.
++				 */
++				core_if->op_state = B_PERIPHERAL;
++				dwc_otg_core_init(core_if);
++				dwc_otg_enable_global_interrupts(core_if);
++				cil_pcd_start(core_if);
++
++				dwc_otg_initiate_srp(core_if);
++			}
++
++			dctl.b.rmtwkupsig = 1;
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++					 dctl, 0, dctl.d32);
++			DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n");
++
++			dwc_mdelay(2);
++			DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++					 dctl, dctl.d32, 0);
++			DWC_DEBUGPL(DBG_PCD, "Clear Remote Wakeup\n");
++		}
++	} else {
++		DWC_DEBUGPL(DBG_PCD, "Remote Wakeup is disabled\n");
++	}
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++/**
++ * This function initiates remote wakeup of the host from L1 sleep state.
++ */
++void dwc_otg_pcd_rem_wkup_from_sleep(dwc_otg_pcd_t * pcd, int set)
++{
++	glpmcfg_data_t lpmcfg;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++
++	/* Check if we are in L1 state */
++	if (!lpmcfg.b.prt_sleep_sts) {
++		DWC_DEBUGPL(DBG_PCD, "Device is not in sleep state\n");
++		return;
++	}
++
++	/* Check if host allows remote wakeup */
++	if (!lpmcfg.b.rem_wkup_en) {
++		DWC_DEBUGPL(DBG_PCD, "Host does not allow remote wakeup\n");
++		return;
++	}
++
++	/* Check if Resume OK */
++	if (!lpmcfg.b.sleep_state_resumeok) {
++		DWC_DEBUGPL(DBG_PCD, "Sleep state resume is not OK\n");
++		return;
++	}
++
++	lpmcfg.d32 = DWC_READ_REG32(&core_if->core_global_regs->glpmcfg);
++	lpmcfg.b.en_utmi_sleep = 0;
++	lpmcfg.b.hird_thres &= (~(1 << 4));
++	DWC_WRITE_REG32(&core_if->core_global_regs->glpmcfg, lpmcfg.d32);
++
++	if (set) {
++		dctl_data_t dctl = {.d32 = 0 };
++		dctl.b.rmtwkupsig = 1;
++		/* Set RmtWkUpSig bit to start remote wakup signaling.
++		 * Hardware will automatically clear this bit.
++		 */
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl,
++				 0, dctl.d32);
++		DWC_DEBUGPL(DBG_PCD, "Set Remote Wakeup\n");
++	}
++
++}
++#endif
++
++/**
++ * Performs remote wakeup.
++ */
++void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t * pcd, int set)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_irqflags_t flags;
++	if (dwc_otg_is_device_mode(core_if)) {
++		DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		if (core_if->lx_state == DWC_OTG_L1) {
++			dwc_otg_pcd_rem_wkup_from_sleep(pcd, set);
++		} else {
++#endif
++			dwc_otg_pcd_rem_wkup_from_suspend(pcd, set);
++#ifdef CONFIG_USB_DWC_OTG_LPM
++		}
++#endif
++		DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++	}
++	return;
++}
++
++void dwc_otg_pcd_disconnect_us(dwc_otg_pcd_t * pcd, int no_of_usecs)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dctl_data_t dctl = { 0 };
++
++	if (dwc_otg_is_device_mode(core_if)) {
++		dctl.b.sftdiscon = 1;
++		DWC_PRINTF("Soft disconnect for %d useconds\n",no_of_usecs);
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, 0, dctl.d32);
++		dwc_udelay(no_of_usecs);
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32,0);
++
++	} else{
++		DWC_PRINTF("NOT SUPPORTED IN HOST MODE\n");
++	}
++	return;
++
++}
++
++int dwc_otg_pcd_wakeup(dwc_otg_pcd_t * pcd)
++{
++	dsts_data_t dsts;
++	gotgctl_data_t gotgctl;
++
++	/*
++	 * This function starts the Protocol if no session is in progress. If
++	 * a session is already in progress, but the device is suspended,
++	 * remote wakeup signaling is started.
++	 */
++
++	/* Check if valid session */
++	gotgctl.d32 =
++	    DWC_READ_REG32(&(GET_CORE_IF(pcd)->core_global_regs->gotgctl));
++	if (gotgctl.b.bsesvld) {
++		/* Check if suspend state */
++		dsts.d32 =
++		    DWC_READ_REG32(&
++				   (GET_CORE_IF(pcd)->dev_if->
++				    dev_global_regs->dsts));
++		if (dsts.b.suspsts) {
++			dwc_otg_pcd_remote_wakeup(pcd, 1);
++		}
++	} else {
++		dwc_otg_pcd_initiate_srp(pcd);
++	}
++
++	return 0;
++
++}
++
++/**
++ * Start the SRP timer to detect when the SRP does not complete within
++ * 6 seconds.
++ *
++ * @param pcd the pcd structure.
++ */
++void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t * pcd)
++{
++	dwc_irqflags_t flags;
++	DWC_SPINLOCK_IRQSAVE(pcd->lock, &flags);
++	dwc_otg_initiate_srp(GET_CORE_IF(pcd));
++	DWC_SPINUNLOCK_IRQRESTORE(pcd->lock, flags);
++}
++
++int dwc_otg_pcd_get_frame_number(dwc_otg_pcd_t * pcd)
++{
++	return dwc_otg_get_frame_number(GET_CORE_IF(pcd));
++}
++
++int dwc_otg_pcd_is_lpm_enabled(dwc_otg_pcd_t * pcd)
++{
++	return GET_CORE_IF(pcd)->core_params->lpm_enable;
++}
++
++uint32_t get_b_hnp_enable(dwc_otg_pcd_t * pcd)
++{
++	return pcd->b_hnp_enable;
++}
++
++uint32_t get_a_hnp_support(dwc_otg_pcd_t * pcd)
++{
++	return pcd->a_hnp_support;
++}
++
++uint32_t get_a_alt_hnp_support(dwc_otg_pcd_t * pcd)
++{
++	return pcd->a_alt_hnp_support;
++}
++
++int dwc_otg_pcd_get_rmwkup_enable(dwc_otg_pcd_t * pcd)
++{
++	return pcd->remote_wakeup_enable;
++}
++
++#endif /* DWC_HOST_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd.h
+@@ -0,0 +1,273 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd.h $
++ * $Revision: #48 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_HOST_ONLY
++#if !defined(__DWC_PCD_H__)
++#define __DWC_PCD_H__
++
++#include "dwc_otg_os_dep.h"
++#include "usb.h"
++#include "dwc_otg_cil.h"
++#include "dwc_otg_pcd_if.h"
++#include "dwc_otg_driver.h"
++
++struct cfiobject;
++
++/**
++ * @file
++ *
++ * This file contains the structures, constants, and interfaces for
++ * the Perpherial Contoller Driver (PCD).
++ *
++ * The Peripheral Controller Driver (PCD) for Linux will implement the
++ * Gadget API, so that the existing Gadget drivers can be used. For
++ * the Mass Storage Function driver the File-backed USB Storage Gadget
++ * (FBS) driver will be used.  The FBS driver supports the
++ * Control-Bulk (CB), Control-Bulk-Interrupt (CBI), and Bulk-Only
++ * transports.
++ *
++ */
++
++/** Invalid DMA Address */
++#define DWC_DMA_ADDR_INVALID	(~(dwc_dma_t)0)
++
++/** Max Transfer size for any EP */
++#define DDMA_MAX_TRANSFER_SIZE 65535
++
++/**
++ * Get the pointer to the core_if from the pcd pointer.
++ */
++#define GET_CORE_IF( _pcd ) (_pcd->core_if)
++
++/**
++ * States of EP0.
++ */
++typedef enum ep0_state {
++	EP0_DISCONNECT,		/* no host */
++	EP0_IDLE,
++	EP0_IN_DATA_PHASE,
++	EP0_OUT_DATA_PHASE,
++	EP0_IN_STATUS_PHASE,
++	EP0_OUT_STATUS_PHASE,
++	EP0_STALL,
++} ep0state_e;
++
++/** Fordward declaration.*/
++struct dwc_otg_pcd;
++
++/** DWC_otg iso request structure.
++ *
++ */
++typedef struct usb_iso_request dwc_otg_pcd_iso_request_t;
++
++#ifdef DWC_UTE_PER_IO
++
++/**
++ * This shall be the exact analogy of the same type structure defined in the
++ * usb_gadget.h. Each descriptor contains
++ */
++struct dwc_iso_pkt_desc_port {
++	uint32_t offset;
++	uint32_t length;	/* expected length */
++	uint32_t actual_length;
++	uint32_t status;
++};
++
++struct dwc_iso_xreq_port {
++	/** transfer/submission flag */
++	uint32_t tr_sub_flags;
++	/** Start the request ASAP */
++#define DWC_EREQ_TF_ASAP		0x00000002
++	/** Just enqueue the request w/o initiating a transfer */
++#define DWC_EREQ_TF_ENQUEUE		0x00000004
++
++	/**
++	* count of ISO packets attached to this request - shall
++	* not exceed the pio_alloc_pkt_count
++	*/
++	uint32_t pio_pkt_count;
++	/** count of ISO packets allocated for this request */
++	uint32_t pio_alloc_pkt_count;
++	/** number of ISO packet errors */
++	uint32_t error_count;
++	/** reserved for future extension */
++	uint32_t res;
++	/** Will be allocated and freed in the UTE gadget and based on the CFC value */
++	struct dwc_iso_pkt_desc_port *per_io_frame_descs;
++};
++#endif
++/** DWC_otg request structure.
++ * This structure is a list of requests.
++ */
++typedef struct dwc_otg_pcd_request {
++	void *priv;
++	void *buf;
++	dwc_dma_t dma;
++	uint32_t length;
++	uint32_t actual;
++	unsigned sent_zlp:1;
++    /**
++     * Used instead of original buffer if
++     * it(physical address) is not dword-aligned.
++     **/
++     uint8_t *dw_align_buf;
++     dwc_dma_t dw_align_buf_dma;
++
++	 DWC_CIRCLEQ_ENTRY(dwc_otg_pcd_request) queue_entry;
++#ifdef DWC_UTE_PER_IO
++	struct dwc_iso_xreq_port ext_req;
++	//void *priv_ereq_nport; /*  */
++#endif
++} dwc_otg_pcd_request_t;
++
++DWC_CIRCLEQ_HEAD(req_list, dwc_otg_pcd_request);
++
++/**	  PCD EP structure.
++ * This structure describes an EP, there is an array of EPs in the PCD
++ * structure.
++ */
++typedef struct dwc_otg_pcd_ep {
++	/** USB EP Descriptor */
++	const usb_endpoint_descriptor_t *desc;
++
++	/** queue of dwc_otg_pcd_requests. */
++	struct req_list queue;
++	unsigned stopped:1;
++	unsigned disabling:1;
++	unsigned dma:1;
++	unsigned queue_sof:1;
++
++#ifdef DWC_EN_ISOC
++	/** ISOC req handle passed */
++	void *iso_req_handle;
++#endif				//_EN_ISOC_
++
++	/** DWC_otg ep data. */
++	dwc_ep_t dwc_ep;
++
++	/** Pointer to PCD */
++	struct dwc_otg_pcd *pcd;
++
++	void *priv;
++} dwc_otg_pcd_ep_t;
++
++/** DWC_otg PCD Structure.
++ * This structure encapsulates the data for the dwc_otg PCD.
++ */
++struct dwc_otg_pcd {
++	const struct dwc_otg_pcd_function_ops *fops;
++	/** The DWC otg device pointer */
++	struct dwc_otg_device *otg_dev;
++	/** Core Interface */
++	dwc_otg_core_if_t *core_if;
++	/** State of EP0 */
++	ep0state_e ep0state;
++	/** EP0 Request is pending */
++	unsigned ep0_pending:1;
++	/** Indicates when SET CONFIGURATION Request is in process */
++	unsigned request_config:1;
++	/** The state of the Remote Wakeup Enable. */
++	unsigned remote_wakeup_enable:1;
++	/** The state of the B-Device HNP Enable. */
++	unsigned b_hnp_enable:1;
++	/** The state of A-Device HNP Support. */
++	unsigned a_hnp_support:1;
++	/** The state of the A-Device Alt HNP support. */
++	unsigned a_alt_hnp_support:1;
++	/** Count of pending Requests */
++	unsigned request_pending;
++
++	/** SETUP packet for EP0
++	 * This structure is allocated as a DMA buffer on PCD initialization
++	 * with enough space for up to 3 setup packets.
++	 */
++	union {
++		usb_device_request_t req;
++		uint32_t d32[2];
++	} *setup_pkt;
++
++	dwc_dma_t setup_pkt_dma_handle;
++
++	/* Additional buffer and flag for CTRL_WR premature case */
++	uint8_t *backup_buf;
++	unsigned data_terminated;
++
++	/** 2-byte dma buffer used to return status from GET_STATUS */
++	uint16_t *status_buf;
++	dwc_dma_t status_buf_dma_handle;
++
++	/** EP0 */
++	dwc_otg_pcd_ep_t ep0;
++
++	/** Array of IN EPs. */
++	dwc_otg_pcd_ep_t in_ep[MAX_EPS_CHANNELS - 1];
++	/** Array of OUT EPs. */
++	dwc_otg_pcd_ep_t out_ep[MAX_EPS_CHANNELS - 1];
++	/** number of valid EPs in the above array. */
++//        unsigned      num_eps : 4;
++	dwc_spinlock_t *lock;
++
++	/** Tasklet to defer starting of TEST mode transmissions until
++	 *	Status Phase has been completed.
++	 */
++	dwc_tasklet_t *test_mode_tasklet;
++
++	/** Tasklet to delay starting of xfer in DMA mode */
++	dwc_tasklet_t *start_xfer_tasklet;
++
++	/** The test mode to enter when the tasklet is executed. */
++	unsigned test_mode;
++	/** The cfi_api structure that implements most of the CFI API
++	 * and OTG specific core configuration functionality
++	 */
++#ifdef DWC_UTE_CFI
++	struct cfiobject *cfi;
++#endif
++
++};
++
++static inline struct device *dwc_otg_pcd_to_dev(struct dwc_otg_pcd *pcd)
++{
++	return &pcd->otg_dev->os_dep.platformdev->dev;
++}
++
++//FIXME this functions should be static, and this prototypes should be removed
++extern void dwc_otg_request_nuke(dwc_otg_pcd_ep_t * ep);
++extern void dwc_otg_request_done(dwc_otg_pcd_ep_t * ep,
++				 dwc_otg_pcd_request_t * req, int32_t status);
++
++void dwc_otg_iso_buffer_done(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep,
++			     void *req_handle);
++
++extern void do_test_mode(void *data);
++#endif
++#endif /* DWC_HOST_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_if.h
+@@ -0,0 +1,361 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_if.h $
++ * $Revision: #11 $
++ * $Date: 2011/10/26 $
++ * $Change: 1873028 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_HOST_ONLY
++
++#if !defined(__DWC_PCD_IF_H__)
++#define __DWC_PCD_IF_H__
++
++//#include "dwc_os.h"
++#include "dwc_otg_core_if.h"
++#include "dwc_otg_driver.h"
++
++/** @file
++ * This file defines DWC_OTG PCD Core API.
++ */
++
++struct dwc_otg_pcd;
++typedef struct dwc_otg_pcd dwc_otg_pcd_t;
++
++/** Maxpacket size for EP0 */
++#define MAX_EP0_SIZE	64
++/** Maxpacket size for any EP */
++#define MAX_PACKET_SIZE 1024
++
++/** @name Function Driver Callbacks */
++/** @{ */
++
++/** This function will be called whenever a previously queued request has
++ * completed.  The status value will be set to -DWC_E_SHUTDOWN to indicated a
++ * failed or aborted transfer, or -DWC_E_RESTART to indicate the device was reset,
++ * or -DWC_E_TIMEOUT to indicate it timed out, or -DWC_E_INVALID to indicate invalid
++ * parameters. */
++typedef int (*dwc_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle,
++				    void *req_handle, int32_t status,
++				    uint32_t actual);
++/**
++ * This function will be called whenever a previousle queued ISOC request has
++ * completed. Count of ISOC packets could be read using dwc_otg_pcd_get_iso_packet_count
++ * function.
++ * The status of each ISOC packet could be read using dwc_otg_pcd_get_iso_packet_*
++ * functions.
++ */
++typedef int (*dwc_isoc_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle,
++					 void *req_handle, int proc_buf_num);
++/** This function should handle any SETUP request that cannot be handled by the
++ * PCD Core.  This includes most GET_DESCRIPTORs, SET_CONFIGS, Any
++ * class-specific requests, etc.  The function must non-blocking.
++ *
++ * Returns 0 on success.
++ * Returns -DWC_E_NOT_SUPPORTED if the request is not supported.
++ * Returns -DWC_E_INVALID if the setup request had invalid parameters or bytes.
++ * Returns -DWC_E_SHUTDOWN on any other error. */
++typedef int (*dwc_setup_cb_t) (dwc_otg_pcd_t * pcd, uint8_t * bytes);
++/** This is called whenever the device has been disconnected.  The function
++ * driver should take appropriate action to clean up all pending requests in the
++ * PCD Core, remove all endpoints (except ep0), and initialize back to reset
++ * state. */
++typedef int (*dwc_disconnect_cb_t) (dwc_otg_pcd_t * pcd);
++/** This function is called when device has been connected. */
++typedef int (*dwc_connect_cb_t) (dwc_otg_pcd_t * pcd, int speed);
++/** This function is called when device has been suspended */
++typedef int (*dwc_suspend_cb_t) (dwc_otg_pcd_t * pcd);
++/** This function is called when device has received LPM tokens, i.e.
++ * device has been sent to sleep state. */
++typedef int (*dwc_sleep_cb_t) (dwc_otg_pcd_t * pcd);
++/** This function is called when device has been resumed
++ * from suspend(L2) or L1 sleep state. */
++typedef int (*dwc_resume_cb_t) (dwc_otg_pcd_t * pcd);
++/** This function is called whenever hnp params has been changed.
++ * User can call get_b_hnp_enable, get_a_hnp_support, get_a_alt_hnp_support functions
++ * to get hnp parameters. */
++typedef int (*dwc_hnp_params_changed_cb_t) (dwc_otg_pcd_t * pcd);
++/** This function is called whenever USB RESET is detected. */
++typedef int (*dwc_reset_cb_t) (dwc_otg_pcd_t * pcd);
++
++typedef int (*cfi_setup_cb_t) (dwc_otg_pcd_t * pcd, void *ctrl_req_bytes);
++
++/**
++ *
++ * @param ep_handle	Void pointer to the usb_ep structure
++ * @param ereq_port Pointer to the extended request structure created in the
++ *					portable part.
++ */
++typedef int (*xiso_completion_cb_t) (dwc_otg_pcd_t * pcd, void *ep_handle,
++				     void *req_handle, int32_t status,
++				     void *ereq_port);
++/** Function Driver Ops Data Structure */
++struct dwc_otg_pcd_function_ops {
++	dwc_connect_cb_t connect;
++	dwc_disconnect_cb_t disconnect;
++	dwc_setup_cb_t setup;
++	dwc_completion_cb_t complete;
++	dwc_isoc_completion_cb_t isoc_complete;
++	dwc_suspend_cb_t suspend;
++	dwc_sleep_cb_t sleep;
++	dwc_resume_cb_t resume;
++	dwc_reset_cb_t reset;
++	dwc_hnp_params_changed_cb_t hnp_changed;
++	cfi_setup_cb_t cfi_setup;
++#ifdef DWC_UTE_PER_IO
++	xiso_completion_cb_t xisoc_complete;
++#endif
++};
++/** @} */
++
++/** @name Function Driver Functions */
++/** @{ */
++
++/** Call this function to get pointer on dwc_otg_pcd_t,
++ * this pointer will be used for all PCD API functions.
++ *
++ * @param core_if The DWC_OTG Core
++ */
++extern dwc_otg_pcd_t *dwc_otg_pcd_init(dwc_otg_device_t *otg_dev);
++
++/** Frees PCD allocated by dwc_otg_pcd_init
++ *
++ * @param pcd The PCD
++ */
++extern void dwc_otg_pcd_remove(dwc_otg_pcd_t * pcd);
++
++/** Call this to bind the function driver to the PCD Core.
++ *
++ * @param pcd Pointer on dwc_otg_pcd_t returned by dwc_otg_pcd_init function.
++ * @param fops The Function Driver Ops data structure containing pointers to all callbacks.
++ */
++extern void dwc_otg_pcd_start(dwc_otg_pcd_t * pcd,
++			      const struct dwc_otg_pcd_function_ops *fops);
++
++/** Enables an endpoint for use.  This function enables an endpoint in
++ * the PCD.  The endpoint is described by the ep_desc which has the
++ * same format as a USB ep descriptor.  The ep_handle parameter is used to refer
++ * to the endpoint from other API functions and in callbacks.  Normally this
++ * should be called after a SET_CONFIGURATION/SET_INTERFACE to configure the
++ * core for that interface.
++ *
++ * Returns -DWC_E_INVALID if invalid parameters were passed.
++ * Returns -DWC_E_SHUTDOWN if any other error ocurred.
++ * Returns 0 on success.
++ *
++ * @param pcd The PCD
++ * @param ep_desc Endpoint descriptor
++ * @param usb_ep Handle on endpoint, that will be used to identify endpoint.
++ */
++extern int dwc_otg_pcd_ep_enable(dwc_otg_pcd_t * pcd,
++				 const uint8_t * ep_desc, void *usb_ep);
++
++/** Disable the endpoint referenced by ep_handle.
++ *
++ * Returns -DWC_E_INVALID if invalid parameters were passed.
++ * Returns -DWC_E_SHUTDOWN if any other error occurred.
++ * Returns 0 on success. */
++extern int dwc_otg_pcd_ep_disable(dwc_otg_pcd_t * pcd, void *ep_handle);
++
++/** Queue a data transfer request on the endpoint referenced by ep_handle.
++ * After the transfer is completes, the complete callback will be called with
++ * the request status.
++ *
++ * @param pcd The PCD
++ * @param ep_handle The handle of the endpoint
++ * @param buf The buffer for the data
++ * @param dma_buf The DMA buffer for the data
++ * @param buflen The length of the data transfer
++ * @param zero Specifies whether to send zero length last packet.
++ * @param req_handle Set this handle to any value to use to reference this
++ * request in the ep_dequeue function or from the complete callback
++ * @param atomic_alloc If driver need to perform atomic allocations
++ * for internal data structures.
++ *
++ * Returns -DWC_E_INVALID if invalid parameters were passed.
++ * Returns -DWC_E_SHUTDOWN if any other error ocurred.
++ * Returns 0 on success. */
++extern int dwc_otg_pcd_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle,
++				uint8_t * buf, dwc_dma_t dma_buf,
++				uint32_t buflen, int zero, void *req_handle,
++				int atomic_alloc);
++#ifdef DWC_UTE_PER_IO
++/**
++ *
++ * @param ereq_nonport	Pointer to the extended request part of the
++ *						usb_request structure defined in usb_gadget.h file.
++ */
++extern int dwc_otg_pcd_xiso_ep_queue(dwc_otg_pcd_t * pcd, void *ep_handle,
++				     uint8_t * buf, dwc_dma_t dma_buf,
++				     uint32_t buflen, int zero,
++				     void *req_handle, int atomic_alloc,
++				     void *ereq_nonport);
++
++#endif
++
++/** De-queue the specified data transfer that has not yet completed.
++ *
++ * Returns -DWC_E_INVALID if invalid parameters were passed.
++ * Returns -DWC_E_SHUTDOWN if any other error ocurred.
++ * Returns 0 on success. */
++extern int dwc_otg_pcd_ep_dequeue(dwc_otg_pcd_t * pcd, void *ep_handle,
++				  void *req_handle);
++
++/** Halt (STALL) an endpoint or clear it.
++ *
++ * Returns -DWC_E_INVALID if invalid parameters were passed.
++ * Returns -DWC_E_SHUTDOWN if any other error ocurred.
++ * Returns -DWC_E_AGAIN if the STALL cannot be sent and must be tried again later
++ * Returns 0 on success. */
++extern int dwc_otg_pcd_ep_halt(dwc_otg_pcd_t * pcd, void *ep_handle, int value);
++
++/** This function */
++extern int dwc_otg_pcd_ep_wedge(dwc_otg_pcd_t * pcd, void *ep_handle);
++
++/** This function should be called on every hardware interrupt */
++extern int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t * pcd);
++
++/** This function returns current frame number */
++extern int dwc_otg_pcd_get_frame_number(dwc_otg_pcd_t * pcd);
++
++/**
++ * Start isochronous transfers on the endpoint referenced by ep_handle.
++ * For isochronous transfers duble buffering is used.
++ * After processing each of buffers comlete callback will be called with
++ * status for each transaction.
++ *
++ * @param pcd The PCD
++ * @param ep_handle The handle of the endpoint
++ * @param buf0 The virtual address of first data buffer
++ * @param buf1 The virtual address of second data buffer
++ * @param dma0 The DMA address of first data buffer
++ * @param dma1 The DMA address of second data buffer
++ * @param sync_frame Data pattern frame number
++ * @param dp_frame Data size for pattern frame
++ * @param data_per_frame Data size for regular frame
++ * @param start_frame Frame number to start transfers, if -1 then start transfers ASAP.
++ * @param buf_proc_intrvl Interval of ISOC Buffer processing
++ * @param req_handle Handle of ISOC request
++ * @param atomic_alloc Specefies whether to perform atomic allocation for
++ * 			internal data structures.
++ *
++ * Returns -DWC_E_NO_MEMORY if there is no enough memory.
++ * Returns -DWC_E_INVALID if incorrect arguments are passed to the function.
++ * Returns -DW_E_SHUTDOWN for any other error.
++ * Returns 0 on success
++ */
++extern int dwc_otg_pcd_iso_ep_start(dwc_otg_pcd_t * pcd, void *ep_handle,
++				    uint8_t * buf0, uint8_t * buf1,
++				    dwc_dma_t dma0, dwc_dma_t dma1,
++				    int sync_frame, int dp_frame,
++				    int data_per_frame, int start_frame,
++				    int buf_proc_intrvl, void *req_handle,
++				    int atomic_alloc);
++
++/** Stop ISOC transfers on endpoint referenced by ep_handle.
++ *
++ * @param pcd The PCD
++ * @param ep_handle The handle of the endpoint
++ * @param req_handle Handle of ISOC request
++ *
++ * Returns -DWC_E_INVALID if incorrect arguments are passed to the function
++ * Returns 0 on success
++ */
++int dwc_otg_pcd_iso_ep_stop(dwc_otg_pcd_t * pcd, void *ep_handle,
++			    void *req_handle);
++
++/** Get ISOC packet status.
++ *
++ * @param pcd The PCD
++ * @param ep_handle The handle of the endpoint
++ * @param iso_req_handle Isochronoush request handle
++ * @param packet Number of packet
++ * @param status Out parameter for returning status
++ * @param actual Out parameter for returning actual length
++ * @param offset Out parameter for returning offset
++ *
++ */
++extern void dwc_otg_pcd_get_iso_packet_params(dwc_otg_pcd_t * pcd,
++					      void *ep_handle,
++					      void *iso_req_handle, int packet,
++					      int *status, int *actual,
++					      int *offset);
++
++/** Get ISOC packet count.
++ *
++ * @param pcd The PCD
++ * @param ep_handle The handle of the endpoint
++ * @param iso_req_handle
++ */
++extern int dwc_otg_pcd_get_iso_packet_count(dwc_otg_pcd_t * pcd,
++					    void *ep_handle,
++					    void *iso_req_handle);
++
++/** This function starts the SRP Protocol if no session is in progress. If
++ * a session is already in progress, but the device is suspended,
++ * remote wakeup signaling is started.
++ */
++extern int dwc_otg_pcd_wakeup(dwc_otg_pcd_t * pcd);
++
++/** This function returns 1 if LPM support is enabled, and 0 otherwise. */
++extern int dwc_otg_pcd_is_lpm_enabled(dwc_otg_pcd_t * pcd);
++
++/** This function returns 1 if remote wakeup is allowed and 0, otherwise. */
++extern int dwc_otg_pcd_get_rmwkup_enable(dwc_otg_pcd_t * pcd);
++
++/** Initiate SRP */
++extern void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t * pcd);
++
++/** Starts remote wakeup signaling. */
++extern void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t * pcd, int set);
++
++/** Starts micorsecond soft disconnect. */
++extern void dwc_otg_pcd_disconnect_us(dwc_otg_pcd_t * pcd, int no_of_usecs);
++/** This function returns whether device is dualspeed.*/
++extern uint32_t dwc_otg_pcd_is_dualspeed(dwc_otg_pcd_t * pcd);
++
++/** This function returns whether device is otg. */
++extern uint32_t dwc_otg_pcd_is_otg(dwc_otg_pcd_t * pcd);
++
++/** These functions allow to get hnp parameters */
++extern uint32_t get_b_hnp_enable(dwc_otg_pcd_t * pcd);
++extern uint32_t get_a_hnp_support(dwc_otg_pcd_t * pcd);
++extern uint32_t get_a_alt_hnp_support(dwc_otg_pcd_t * pcd);
++
++/** CFI specific Interface functions */
++/** Allocate a cfi buffer */
++extern uint8_t *cfiw_ep_alloc_buffer(dwc_otg_pcd_t * pcd, void *pep,
++				     dwc_dma_t * addr, size_t buflen,
++				     int flags);
++
++/******************************************************************************/
++
++/** @} */
++
++#endif				/* __DWC_PCD_IF_H__ */
++
++#endif				/* DWC_HOST_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c
+@@ -0,0 +1,5148 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_intr.c $
++ * $Revision: #116 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++#ifndef DWC_HOST_ONLY
++
++#include "dwc_otg_pcd.h"
++
++#ifdef DWC_UTE_CFI
++#include "dwc_otg_cfi.h"
++#endif
++
++#ifdef DWC_UTE_PER_IO
++extern void complete_xiso_ep(dwc_otg_pcd_ep_t * ep);
++#endif
++//#define PRINT_CFI_DMA_DESCS
++
++#define DEBUG_EP0
++
++/**
++ * This function updates OTG.
++ */
++static void dwc_otg_pcd_update_otg(dwc_otg_pcd_t * pcd, const unsigned reset)
++{
++
++	if (reset) {
++		pcd->b_hnp_enable = 0;
++		pcd->a_hnp_support = 0;
++		pcd->a_alt_hnp_support = 0;
++	}
++
++	if (pcd->fops->hnp_changed) {
++		pcd->fops->hnp_changed(pcd);
++	}
++}
++
++/** @file
++ * This file contains the implementation of the PCD Interrupt handlers.
++ *
++ * The PCD handles the device interrupts.  Many conditions can cause a
++ * device interrupt. When an interrupt occurs, the device interrupt
++ * service routine determines the cause of the interrupt and
++ * dispatches handling to the appropriate function. These interrupt
++ * handling functions are described below.
++ * All interrupt registers are processed from LSB to MSB.
++ */
++
++/**
++ * This function prints the ep0 state for debug purposes.
++ */
++static inline void print_ep0_state(dwc_otg_pcd_t * pcd)
++{
++#ifdef DEBUG
++	char str[40];
++
++	switch (pcd->ep0state) {
++	case EP0_DISCONNECT:
++		dwc_strcpy(str, "EP0_DISCONNECT");
++		break;
++	case EP0_IDLE:
++		dwc_strcpy(str, "EP0_IDLE");
++		break;
++	case EP0_IN_DATA_PHASE:
++		dwc_strcpy(str, "EP0_IN_DATA_PHASE");
++		break;
++	case EP0_OUT_DATA_PHASE:
++		dwc_strcpy(str, "EP0_OUT_DATA_PHASE");
++		break;
++	case EP0_IN_STATUS_PHASE:
++		dwc_strcpy(str, "EP0_IN_STATUS_PHASE");
++		break;
++	case EP0_OUT_STATUS_PHASE:
++		dwc_strcpy(str, "EP0_OUT_STATUS_PHASE");
++		break;
++	case EP0_STALL:
++		dwc_strcpy(str, "EP0_STALL");
++		break;
++	default:
++		dwc_strcpy(str, "EP0_INVALID");
++	}
++
++	DWC_DEBUGPL(DBG_ANY, "%s(%d)\n", str, pcd->ep0state);
++#endif
++}
++
++/**
++ * This function calculate the size of the payload in the memory
++ * for out endpoints and prints size for debug purposes(used in
++ * 2.93a DevOutNak feature).
++ */
++static inline void print_memory_payload(dwc_otg_pcd_t * pcd,  dwc_ep_t * ep)
++{
++#ifdef DEBUG
++	deptsiz_data_t deptsiz_init = {.d32 = 0 };
++	deptsiz_data_t deptsiz_updt = {.d32 = 0 };
++	int pack_num;
++	unsigned payload;
++
++	deptsiz_init.d32 = pcd->core_if->start_doeptsiz_val[ep->num];
++	deptsiz_updt.d32 =
++		DWC_READ_REG32(&pcd->core_if->dev_if->
++						out_ep_regs[ep->num]->doeptsiz);
++	/* Payload will be */
++	payload = deptsiz_init.b.xfersize - deptsiz_updt.b.xfersize;
++	/* Packet count is decremented every time a packet
++	 * is written to the RxFIFO not in to the external memory
++	 * So, if payload == 0, then it means no packet was sent to ext memory*/
++	pack_num = (!payload) ? 0 : (deptsiz_init.b.pktcnt - deptsiz_updt.b.pktcnt);
++	DWC_DEBUGPL(DBG_PCDV,
++		"Payload for EP%d-%s\n",
++		ep->num, (ep->is_in ? "IN" : "OUT"));
++	DWC_DEBUGPL(DBG_PCDV,
++		"Number of transfered bytes = 0x%08x\n", payload);
++	DWC_DEBUGPL(DBG_PCDV,
++		"Number of transfered packets = %d\n", pack_num);
++#endif
++}
++
++
++#ifdef DWC_UTE_CFI
++static inline void print_desc(struct dwc_otg_dma_desc *ddesc,
++			      const uint8_t * epname, int descnum)
++{
++	CFI_INFO
++	    ("%s DMA_DESC(%d) buf=0x%08x bytes=0x%04x; sp=0x%x; l=0x%x; sts=0x%02x; bs=0x%02x\n",
++	     epname, descnum, ddesc->buf, ddesc->status.b.bytes,
++	     ddesc->status.b.sp, ddesc->status.b.l, ddesc->status.b.sts,
++	     ddesc->status.b.bs);
++}
++#endif
++
++/**
++ * This function returns pointer to in ep struct with number ep_num
++ */
++static inline dwc_otg_pcd_ep_t *get_in_ep(dwc_otg_pcd_t * pcd, uint32_t ep_num)
++{
++	int i;
++	int num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps;
++	if (ep_num == 0) {
++		return &pcd->ep0;
++	} else {
++		for (i = 0; i < num_in_eps; ++i) {
++			if (pcd->in_ep[i].dwc_ep.num == ep_num)
++				return &pcd->in_ep[i];
++		}
++		return 0;
++	}
++}
++
++/**
++ * This function returns pointer to out ep struct with number ep_num
++ */
++static inline dwc_otg_pcd_ep_t *get_out_ep(dwc_otg_pcd_t * pcd, uint32_t ep_num)
++{
++	int i;
++	int num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps;
++	if (ep_num == 0) {
++		return &pcd->ep0;
++	} else {
++		for (i = 0; i < num_out_eps; ++i) {
++			if (pcd->out_ep[i].dwc_ep.num == ep_num)
++				return &pcd->out_ep[i];
++		}
++		return 0;
++	}
++}
++
++/**
++ * This functions gets a pointer to an EP from the wIndex address
++ * value of the control request.
++ */
++dwc_otg_pcd_ep_t *get_ep_by_addr(dwc_otg_pcd_t * pcd, u16 wIndex)
++{
++	dwc_otg_pcd_ep_t *ep;
++	uint32_t ep_num = UE_GET_ADDR(wIndex);
++
++	if (ep_num == 0) {
++		ep = &pcd->ep0;
++	} else if (UE_GET_DIR(wIndex) == UE_DIR_IN) {	/* in ep */
++		ep = &pcd->in_ep[ep_num - 1];
++	} else {
++		ep = &pcd->out_ep[ep_num - 1];
++	}
++
++	return ep;
++}
++
++/**
++ * This function checks the EP request queue, if the queue is not
++ * empty the next request is started.
++ */
++void start_next_request(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_pcd_request_t *req = 0;
++	uint32_t max_transfer =
++	    GET_CORE_IF(ep->pcd)->core_params->max_transfer_size;
++
++#ifdef DWC_UTE_CFI
++	struct dwc_otg_pcd *pcd;
++	pcd = ep->pcd;
++#endif
++
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		req = DWC_CIRCLEQ_FIRST(&ep->queue);
++
++#ifdef DWC_UTE_CFI
++		if (ep->dwc_ep.buff_mode != BM_STANDARD) {
++			ep->dwc_ep.cfi_req_len = req->length;
++			pcd->cfi->ops.build_descriptors(pcd->cfi, pcd, ep, req);
++		} else {
++#endif
++			/* Setup and start the Transfer */
++			if (req->dw_align_buf) {
++				ep->dwc_ep.dma_addr = req->dw_align_buf_dma;
++				ep->dwc_ep.start_xfer_buff = req->dw_align_buf;
++				ep->dwc_ep.xfer_buff = req->dw_align_buf;
++			} else {
++				ep->dwc_ep.dma_addr = req->dma;
++				ep->dwc_ep.start_xfer_buff = req->buf;
++				ep->dwc_ep.xfer_buff = req->buf;
++			}
++			ep->dwc_ep.sent_zlp = 0;
++			ep->dwc_ep.total_len = req->length;
++			ep->dwc_ep.xfer_len = 0;
++			ep->dwc_ep.xfer_count = 0;
++
++			ep->dwc_ep.maxxfer = max_transfer;
++			if (GET_CORE_IF(ep->pcd)->dma_desc_enable) {
++				uint32_t out_max_xfer = DDMA_MAX_TRANSFER_SIZE
++				    - (DDMA_MAX_TRANSFER_SIZE % 4);
++				if (ep->dwc_ep.is_in) {
++					if (ep->dwc_ep.maxxfer >
++					    DDMA_MAX_TRANSFER_SIZE) {
++						ep->dwc_ep.maxxfer =
++						    DDMA_MAX_TRANSFER_SIZE;
++					}
++				} else {
++					if (ep->dwc_ep.maxxfer > out_max_xfer) {
++						ep->dwc_ep.maxxfer =
++						    out_max_xfer;
++					}
++				}
++			}
++			if (ep->dwc_ep.maxxfer < ep->dwc_ep.total_len) {
++				ep->dwc_ep.maxxfer -=
++				    (ep->dwc_ep.maxxfer % ep->dwc_ep.maxpacket);
++			}
++			if (req->sent_zlp) {
++				if ((ep->dwc_ep.total_len %
++				     ep->dwc_ep.maxpacket == 0)
++				    && (ep->dwc_ep.total_len != 0)) {
++					ep->dwc_ep.sent_zlp = 1;
++				}
++
++			}
++#ifdef DWC_UTE_CFI
++		}
++#endif
++		dwc_otg_ep_start_transfer(GET_CORE_IF(ep->pcd), &ep->dwc_ep);
++	} else if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++		DWC_PRINTF("There are no more ISOC requests \n");
++		ep->dwc_ep.frame_num = 0xFFFFFFFF;
++	}
++}
++
++/**
++ * This function handles the SOF Interrupts. At this time the SOF
++ * Interrupt is disabled.
++ */
++int32_t dwc_otg_pcd_handle_sof_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++	gintsts_data_t gintsts;
++
++	DWC_DEBUGPL(DBG_PCD, "SOF\n");
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.sofintr = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This function handles the Rx Status Queue Level Interrupt, which
++ * indicates that there is a least one packet in the Rx FIFO.  The
++ * packets are moved from the FIFO to memory, where they will be
++ * processed when the Endpoint Interrupt Register indicates Transfer
++ * Complete or SETUP Phase Done.
++ *
++ * Repeat the following until the Rx Status Queue is empty:
++ *	 -# Read the Receive Status Pop Register (GRXSTSP) to get Packet
++ *		info
++ *	 -# If Receive FIFO is empty then skip to step Clear the interrupt
++ *		and exit
++ *	 -# If SETUP Packet call dwc_otg_read_setup_packet to copy the
++ *		SETUP data to the buffer
++ *	 -# If OUT Data Packet call dwc_otg_read_packet to copy the data
++ *		to the destination buffer
++ */
++int32_t dwc_otg_pcd_handle_rx_status_q_level_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	gintmsk_data_t gintmask = {.d32 = 0 };
++	device_grxsts_data_t status;
++	dwc_otg_pcd_ep_t *ep;
++	gintsts_data_t gintsts;
++#ifdef DEBUG
++	static char *dpid_str[] = { "D0", "D2", "D1", "MDATA" };
++#endif
++
++	//DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, _pcd);
++	/* Disable the Rx Status Queue Level interrupt */
++	gintmask.b.rxstsqlvl = 1;
++	DWC_MODIFY_REG32(&global_regs->gintmsk, gintmask.d32, 0);
++
++	/* Get the Status from the top of the FIFO */
++	status.d32 = DWC_READ_REG32(&global_regs->grxstsp);
++
++	DWC_DEBUGPL(DBG_PCD, "EP:%d BCnt:%d DPID:%s "
++		    "pktsts:%x Frame:%d(0x%0x)\n",
++		    status.b.epnum, status.b.bcnt,
++		    dpid_str[status.b.dpid],
++		    status.b.pktsts, status.b.fn, status.b.fn);
++	/* Get pointer to EP structure */
++	ep = get_out_ep(pcd, status.b.epnum);
++
++	switch (status.b.pktsts) {
++	case DWC_DSTS_GOUT_NAK:
++		DWC_DEBUGPL(DBG_PCDV, "Global OUT NAK\n");
++		break;
++	case DWC_STS_DATA_UPDT:
++		DWC_DEBUGPL(DBG_PCDV, "OUT Data Packet\n");
++		if (status.b.bcnt && ep->dwc_ep.xfer_buff) {
++			/** @todo NGS Check for buffer overflow? */
++			dwc_otg_read_packet(core_if,
++					    ep->dwc_ep.xfer_buff,
++					    status.b.bcnt);
++			ep->dwc_ep.xfer_count += status.b.bcnt;
++			ep->dwc_ep.xfer_buff += status.b.bcnt;
++		}
++		break;
++	case DWC_STS_XFER_COMP:
++		DWC_DEBUGPL(DBG_PCDV, "OUT Complete\n");
++		break;
++	case DWC_DSTS_SETUP_COMP:
++#ifdef DEBUG_EP0
++		DWC_DEBUGPL(DBG_PCDV, "Setup Complete\n");
++#endif
++		break;
++	case DWC_DSTS_SETUP_UPDT:
++		dwc_otg_read_setup_packet(core_if, pcd->setup_pkt->d32);
++#ifdef DEBUG_EP0
++		DWC_DEBUGPL(DBG_PCD,
++			    "SETUP PKT: %02x.%02x v%04x i%04x l%04x\n",
++			    pcd->setup_pkt->req.bmRequestType,
++			    pcd->setup_pkt->req.bRequest,
++			    UGETW(pcd->setup_pkt->req.wValue),
++			    UGETW(pcd->setup_pkt->req.wIndex),
++			    UGETW(pcd->setup_pkt->req.wLength));
++#endif
++		ep->dwc_ep.xfer_count += status.b.bcnt;
++		break;
++	default:
++		DWC_DEBUGPL(DBG_PCDV, "Invalid Packet Status (0x%0x)\n",
++			    status.b.pktsts);
++		break;
++	}
++
++	/* Enable the Rx Status Queue Level interrupt */
++	DWC_MODIFY_REG32(&global_regs->gintmsk, 0, gintmask.d32);
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.rxstsqlvl = 1;
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	//DWC_DEBUGPL(DBG_PCDV, "EXIT: %s\n", __func__);
++	return 1;
++}
++
++/**
++ * This function examines the Device IN Token Learning Queue to
++ * determine the EP number of the last IN token received.  This
++ * implementation is for the Mass Storage device where there are only
++ * 2 IN EPs (Control-IN and BULK-IN).
++ *
++ * The EP numbers for the first six IN Tokens are in DTKNQR1 and there
++ * are 8 EP Numbers in each of the other possible DTKNQ Registers.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ *
++ */
++static inline int get_ep_of_last_in_token(dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_device_global_regs_t *dev_global_regs =
++	    core_if->dev_if->dev_global_regs;
++	const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth;
++	/* Number of Token Queue Registers */
++	const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8;
++	dtknq1_data_t dtknqr1;
++	uint32_t in_tkn_epnums[4];
++	int ndx = 0;
++	int i = 0;
++	volatile uint32_t *addr = &dev_global_regs->dtknqr1;
++	int epnum = 0;
++
++	//DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH);
++
++	/* Read the DTKNQ Registers */
++	for (i = 0; i < DTKNQ_REG_CNT; i++) {
++		in_tkn_epnums[i] = DWC_READ_REG32(addr);
++		DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i + 1,
++			    in_tkn_epnums[i]);
++		if (addr == &dev_global_regs->dvbusdis) {
++			addr = &dev_global_regs->dtknqr3_dthrctl;
++		} else {
++			++addr;
++		}
++
++	}
++
++	/* Copy the DTKNQR1 data to the bit field. */
++	dtknqr1.d32 = in_tkn_epnums[0];
++	/* Get the EP numbers */
++	in_tkn_epnums[0] = dtknqr1.b.epnums0_5;
++	ndx = dtknqr1.b.intknwptr - 1;
++
++	//DWC_DEBUGPL(DBG_PCDV,"ndx=%d\n",ndx);
++	if (ndx == -1) {
++		/** @todo Find a simpler way to calculate the max
++		 * queue position.*/
++		int cnt = TOKEN_Q_DEPTH;
++		if (TOKEN_Q_DEPTH <= 6) {
++			cnt = TOKEN_Q_DEPTH - 1;
++		} else if (TOKEN_Q_DEPTH <= 14) {
++			cnt = TOKEN_Q_DEPTH - 7;
++		} else if (TOKEN_Q_DEPTH <= 22) {
++			cnt = TOKEN_Q_DEPTH - 15;
++		} else {
++			cnt = TOKEN_Q_DEPTH - 23;
++		}
++		epnum = (in_tkn_epnums[DTKNQ_REG_CNT - 1] >> (cnt * 4)) & 0xF;
++	} else {
++		if (ndx <= 5) {
++			epnum = (in_tkn_epnums[0] >> (ndx * 4)) & 0xF;
++		} else if (ndx <= 13) {
++			ndx -= 6;
++			epnum = (in_tkn_epnums[1] >> (ndx * 4)) & 0xF;
++		} else if (ndx <= 21) {
++			ndx -= 14;
++			epnum = (in_tkn_epnums[2] >> (ndx * 4)) & 0xF;
++		} else if (ndx <= 29) {
++			ndx -= 22;
++			epnum = (in_tkn_epnums[3] >> (ndx * 4)) & 0xF;
++		}
++	}
++	//DWC_DEBUGPL(DBG_PCD,"epnum=%d\n",epnum);
++	return epnum;
++}
++
++/**
++ * This interrupt occurs when the non-periodic Tx FIFO is half-empty.
++ * The active request is checked for the next packet to be loaded into
++ * the non-periodic Tx FIFO.
++ */
++int32_t dwc_otg_pcd_handle_np_tx_fifo_empty_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	dwc_otg_dev_in_ep_regs_t *ep_regs;
++	gnptxsts_data_t txstatus = {.d32 = 0 };
++	gintsts_data_t gintsts;
++
++	int epnum = 0;
++	dwc_otg_pcd_ep_t *ep = 0;
++	uint32_t len = 0;
++	int dwords;
++
++	/* Get the epnum from the IN Token Learning Queue. */
++	epnum = get_ep_of_last_in_token(core_if);
++	ep = get_in_ep(pcd, epnum);
++
++	DWC_DEBUGPL(DBG_PCD, "NP TxFifo Empty: %d \n", epnum);
++
++	ep_regs = core_if->dev_if->in_ep_regs[epnum];
++
++	len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count;
++	if (len > ep->dwc_ep.maxpacket) {
++		len = ep->dwc_ep.maxpacket;
++	}
++	dwords = (len + 3) / 4;
++
++	/* While there is space in the queue and space in the FIFO and
++	 * More data to tranfer, Write packets to the Tx FIFO */
++	txstatus.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++	DWC_DEBUGPL(DBG_PCDV, "b4 GNPTXSTS=0x%08x\n", txstatus.d32);
++
++	while (txstatus.b.nptxqspcavail > 0 &&
++	       txstatus.b.nptxfspcavail > dwords &&
++	       ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len) {
++		/* Write the FIFO */
++		dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0);
++		len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count;
++
++		if (len > ep->dwc_ep.maxpacket) {
++			len = ep->dwc_ep.maxpacket;
++		}
++
++		dwords = (len + 3) / 4;
++		txstatus.d32 = DWC_READ_REG32(&global_regs->gnptxsts);
++		DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n", txstatus.d32);
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "GNPTXSTS=0x%08x\n",
++		    DWC_READ_REG32(&global_regs->gnptxsts));
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.nptxfempty = 1;
++	DWC_WRITE_REG32(&global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This function is called when dedicated Tx FIFO Empty interrupt occurs.
++ * The active request is checked for the next packet to be loaded into
++ * apropriate Tx FIFO.
++ */
++static int32_t write_empty_tx_fifo(dwc_otg_pcd_t * pcd, uint32_t epnum)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dwc_otg_dev_in_ep_regs_t *ep_regs;
++	dtxfsts_data_t txstatus = {.d32 = 0 };
++	dwc_otg_pcd_ep_t *ep = 0;
++	uint32_t len = 0;
++	int dwords;
++
++	ep = get_in_ep(pcd, epnum);
++
++	DWC_DEBUGPL(DBG_PCD, "Dedicated TxFifo Empty: %d \n", epnum);
++
++	ep_regs = core_if->dev_if->in_ep_regs[epnum];
++
++	len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count;
++
++	if (len > ep->dwc_ep.maxpacket) {
++		len = ep->dwc_ep.maxpacket;
++	}
++
++	dwords = (len + 3) / 4;
++
++	/* While there is space in the queue and space in the FIFO and
++	 * More data to tranfer, Write packets to the Tx FIFO */
++	txstatus.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts);
++	DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum, txstatus.d32);
++
++	while (txstatus.b.txfspcavail > dwords &&
++	       ep->dwc_ep.xfer_count < ep->dwc_ep.xfer_len &&
++	       ep->dwc_ep.xfer_len != 0) {
++		/* Write the FIFO */
++		dwc_otg_ep_write_packet(core_if, &ep->dwc_ep, 0);
++
++		len = ep->dwc_ep.xfer_len - ep->dwc_ep.xfer_count;
++		if (len > ep->dwc_ep.maxpacket) {
++			len = ep->dwc_ep.maxpacket;
++		}
++
++		dwords = (len + 3) / 4;
++		txstatus.d32 =
++		    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts);
++		DWC_DEBUGPL(DBG_PCDV, "dtxfsts[%d]=0x%08x\n", epnum,
++			    txstatus.d32);
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "b4 dtxfsts[%d]=0x%08x\n", epnum,
++		    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dtxfsts));
++
++	return 1;
++}
++
++/**
++ * This function is called when the Device is disconnected. It stops
++ * any active requests and informs the Gadget driver of the
++ * disconnect.
++ */
++void dwc_otg_pcd_stop(dwc_otg_pcd_t * pcd)
++{
++	int i, num_in_eps, num_out_eps;
++	dwc_otg_pcd_ep_t *ep;
++
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_SPINLOCK(pcd->lock);
++
++	num_in_eps = GET_CORE_IF(pcd)->dev_if->num_in_eps;
++	num_out_eps = GET_CORE_IF(pcd)->dev_if->num_out_eps;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s() \n", __func__);
++	/* don't disconnect drivers more than once */
++	if (pcd->ep0state == EP0_DISCONNECT) {
++		DWC_DEBUGPL(DBG_ANY, "%s() Already Disconnected\n", __func__);
++		DWC_SPINUNLOCK(pcd->lock);
++		return;
++	}
++	pcd->ep0state = EP0_DISCONNECT;
++
++	/* Reset the OTG state. */
++	dwc_otg_pcd_update_otg(pcd, 1);
++
++	/* Disable the NP Tx Fifo Empty Interrupt. */
++	intr_mask.b.nptxfempty = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);
++
++	/* Flush the FIFOs */
++	/**@todo NGS Flush Periodic FIFOs */
++	dwc_otg_flush_tx_fifo(GET_CORE_IF(pcd), 0x10);
++	dwc_otg_flush_rx_fifo(GET_CORE_IF(pcd));
++
++	/* prevent new request submissions, kill any outstanding requests  */
++	ep = &pcd->ep0;
++	dwc_otg_request_nuke(ep);
++	/* prevent new request submissions, kill any outstanding requests  */
++	for (i = 0; i < num_in_eps; i++) {
++		dwc_otg_pcd_ep_t *ep = &pcd->in_ep[i];
++		dwc_otg_request_nuke(ep);
++	}
++	/* prevent new request submissions, kill any outstanding requests  */
++	for (i = 0; i < num_out_eps; i++) {
++		dwc_otg_pcd_ep_t *ep = &pcd->out_ep[i];
++		dwc_otg_request_nuke(ep);
++	}
++
++	/* report disconnect; the driver is already quiesced */
++	if (pcd->fops->disconnect) {
++		DWC_SPINUNLOCK(pcd->lock);
++		pcd->fops->disconnect(pcd);
++		DWC_SPINLOCK(pcd->lock);
++	}
++	DWC_SPINUNLOCK(pcd->lock);
++}
++
++/**
++ * This interrupt indicates that ...
++ */
++int32_t dwc_otg_pcd_handle_i2c_intr(dwc_otg_pcd_t * pcd)
++{
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	gintsts_data_t gintsts;
++
++	DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "i2cintr");
++	intr_mask.b.i2cintr = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.i2cintr = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++	return 1;
++}
++
++/**
++ * This interrupt indicates that ...
++ */
++int32_t dwc_otg_pcd_handle_early_suspend_intr(dwc_otg_pcd_t * pcd)
++{
++	gintsts_data_t gintsts;
++#if defined(VERBOSE)
++	DWC_PRINTF("Early Suspend Detected\n");
++#endif
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.erlysuspend = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++	return 1;
++}
++
++/**
++ * This function configures EPO to receive SETUP packets.
++ *
++ * @todo NGS: Update the comments from the HW FS.
++ *
++ *	-# Program the following fields in the endpoint specific registers
++ *	for Control OUT EP 0, in order to receive a setup packet
++ *	- DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back
++ *	  setup packets)
++ *	- DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back
++ *	  to back setup packets)
++ *		- In DMA mode, DOEPDMA0 Register with a memory address to
++ *		  store any setup packets received
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param pcd	  Programming view of the PCD.
++ */
++static inline void ep0_out_start(dwc_otg_core_if_t * core_if,
++				 dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	deptsiz0_data_t doeptsize0 = {.d32 = 0 };
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	depctl_data_t doepctl = {.d32 = 0 };
++
++#ifdef VERBOSE
++	DWC_DEBUGPL(DBG_PCDV, "%s() doepctl0=%0x\n", __func__,
++		    DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl));
++#endif
++	if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++		doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl);
++		if (doepctl.b.epena) {
++			return;
++		}
++	}
++
++	doeptsize0.b.supcnt = 3;
++	doeptsize0.b.pktcnt = 1;
++	doeptsize0.b.xfersize = 8 * 3;
++
++	if (core_if->dma_enable) {
++		if (!core_if->dma_desc_enable) {
++			/** put here as for Hermes mode deptisz register should not be written */
++			DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doeptsiz,
++					doeptsize0.d32);
++
++			/** @todo dma needs to handle multiple setup packets (up to 3) */
++			DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepdma,
++					pcd->setup_pkt_dma_handle);
++		} else {
++			dev_if->setup_desc_index =
++			    (dev_if->setup_desc_index + 1) & 1;
++			dma_desc =
++			    dev_if->setup_desc_addr[dev_if->setup_desc_index];
++
++			/** DMA Descriptor Setup */
++			dma_desc->status.b.bs = BS_HOST_BUSY;
++			if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++				dma_desc->status.b.sr = 0;
++				dma_desc->status.b.mtrf = 0;
++			}
++			dma_desc->status.b.l = 1;
++			dma_desc->status.b.ioc = 1;
++			dma_desc->status.b.bytes = pcd->ep0.dwc_ep.maxpacket;
++			dma_desc->buf = pcd->setup_pkt_dma_handle;
++			dma_desc->status.b.sts = 0;
++			dma_desc->status.b.bs = BS_HOST_READY;
++
++			/** DOEPDMA0 Register write */
++			DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepdma,
++					dev_if->dma_setup_desc_addr
++					[dev_if->setup_desc_index]);
++		}
++
++	} else {
++		/** put here as for Hermes mode deptisz register should not be written */
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doeptsiz,
++				doeptsize0.d32);
++	}
++
++	/** DOEPCTL0 Register write cnak will be set after setup interrupt */
++	doepctl.d32 = 0;
++	doepctl.b.epena = 1;
++	if (core_if->snpsid <= OTG_CORE_REV_2_94a) {
++	doepctl.b.cnak = 1;
++	DWC_WRITE_REG32(&dev_if->out_ep_regs[0]->doepctl, doepctl.d32);
++	} else {
++		DWC_MODIFY_REG32(&dev_if->out_ep_regs[0]->doepctl, 0, doepctl.d32);
++	}
++
++#ifdef VERBOSE
++	DWC_DEBUGPL(DBG_PCDV, "doepctl0=%0x\n",
++		    DWC_READ_REG32(&dev_if->out_ep_regs[0]->doepctl));
++	DWC_DEBUGPL(DBG_PCDV, "diepctl0=%0x\n",
++		    DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl));
++#endif
++}
++
++/**
++ * This interrupt occurs when a USB Reset is detected. When the USB
++ * Reset Interrupt occurs the device state is set to DEFAULT and the
++ * EP0 state is set to IDLE.
++ *	-#	Set the NAK bit for all OUT endpoints (DOEPCTLn.SNAK = 1)
++ *	-#	Unmask the following interrupt bits
++ *		- DAINTMSK.INEP0 = 1 (Control 0 IN endpoint)
++ *	- DAINTMSK.OUTEP0 = 1 (Control 0 OUT endpoint)
++ *	- DOEPMSK.SETUP = 1
++ *	- DOEPMSK.XferCompl = 1
++ *	- DIEPMSK.XferCompl = 1
++ *	- DIEPMSK.TimeOut = 1
++ *	-# Program the following fields in the endpoint specific registers
++ *	for Control OUT EP 0, in order to receive a setup packet
++ *	- DOEPTSIZ0.Packet Count = 3 (To receive up to 3 back to back
++ *	  setup packets)
++ *	- DOEPTSIZE0.Transfer Size = 24 Bytes (To receive up to 3 back
++ *	  to back setup packets)
++ *		- In DMA mode, DOEPDMA0 Register with a memory address to
++ *		  store any setup packets received
++ * At this point, all the required initialization, except for enabling
++ * the control 0 OUT endpoint is done, for receiving SETUP packets.
++ */
++int32_t dwc_otg_pcd_handle_usb_reset_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	depctl_data_t doepctl = {.d32 = 0 };
++	depctl_data_t diepctl = {.d32 = 0 };
++	daint_data_t daintmsk = {.d32 = 0 };
++	doepmsk_data_t doepmsk = {.d32 = 0 };
++	diepmsk_data_t diepmsk = {.d32 = 0 };
++	dcfg_data_t dcfg = {.d32 = 0 };
++	grstctl_t resetctl = {.d32 = 0 };
++	dctl_data_t dctl = {.d32 = 0 };
++	int i = 0;
++	gintsts_data_t gintsts;
++	pcgcctl_data_t power = {.d32 = 0 };
++
++	power.d32 = DWC_READ_REG32(core_if->pcgcctl);
++	if (power.b.stoppclk) {
++		power.d32 = 0;
++		power.b.stoppclk = 1;
++		DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0);
++
++		power.b.pwrclmp = 1;
++		DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0);
++
++		power.b.rstpdwnmodule = 1;
++		DWC_MODIFY_REG32(core_if->pcgcctl, power.d32, 0);
++	}
++
++	core_if->lx_state = DWC_OTG_L0;
++
++	DWC_PRINTF("USB RESET\n");
++#ifdef DWC_EN_ISOC
++	for (i = 1; i < 16; ++i) {
++		dwc_otg_pcd_ep_t *ep;
++		dwc_ep_t *dwc_ep;
++		ep = get_in_ep(pcd, i);
++		if (ep != 0) {
++			dwc_ep = &ep->dwc_ep;
++			dwc_ep->next_frame = 0xffffffff;
++		}
++	}
++#endif /* DWC_EN_ISOC */
++
++	/* reset the HNP settings */
++	dwc_otg_pcd_update_otg(pcd, 1);
++
++	/* Clear the Remote Wakeup Signalling */
++	dctl.b.rmtwkupsig = 1;
++	DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, 0);
++
++	/* Set NAK for all OUT EPs */
++	doepctl.b.snak = 1;
++	for (i = 0; i <= dev_if->num_out_eps; i++) {
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, doepctl.d32);
++	}
++
++	/* Flush the NP Tx FIFO */
++	dwc_otg_flush_tx_fifo(core_if, 0x10);
++	/* Flush the Learning Queue */
++	resetctl.b.intknqflsh = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32);
++
++	if (!core_if->core_params->en_multiple_tx_fifo && core_if->dma_enable) {
++		core_if->start_predict = 0;
++		for (i = 0; i<= core_if->dev_if->num_in_eps; ++i) {
++			core_if->nextep_seq[i] = 0xff;	// 0xff - EP not active
++		}
++		core_if->nextep_seq[0] = 0;
++		core_if->first_in_nextep_seq = 0;
++		diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[0]->diepctl);
++		diepctl.b.nextep = 0;
++		DWC_WRITE_REG32(&dev_if->in_ep_regs[0]->diepctl, diepctl.d32);
++
++		/* Update IN Endpoint Mismatch Count by active IN NP EP count + 1 */
++		dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg);
++		dcfg.b.epmscnt = 2;
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++		DWC_DEBUGPL(DBG_PCDV,
++			    "%s first_in_nextep_seq= %2d; nextep_seq[]:\n",
++			__func__, core_if->first_in_nextep_seq);
++		for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++			DWC_DEBUGPL(DBG_PCDV, "%2d\n", core_if->nextep_seq[i]);
++		}
++	}
++
++	if (core_if->multiproc_int_enable) {
++		daintmsk.b.inep0 = 1;
++		daintmsk.b.outep0 = 1;
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->deachintmsk,
++				daintmsk.d32);
++
++		doepmsk.b.setup = 1;
++		doepmsk.b.xfercompl = 1;
++		doepmsk.b.ahberr = 1;
++		doepmsk.b.epdisabled = 1;
++
++		if ((core_if->dma_desc_enable) ||
++		    (core_if->dma_enable
++		     && core_if->snpsid >= OTG_CORE_REV_3_00a)) {
++			doepmsk.b.stsphsercvd = 1;
++		}
++		if (core_if->dma_desc_enable)
++			doepmsk.b.bna = 1;
++/*
++		doepmsk.b.babble = 1;
++		doepmsk.b.nyet = 1;
++
++		if (core_if->dma_enable) {
++			doepmsk.b.nak = 1;
++		}
++*/
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->doepeachintmsk[0],
++				doepmsk.d32);
++
++		diepmsk.b.xfercompl = 1;
++		diepmsk.b.timeout = 1;
++		diepmsk.b.epdisabled = 1;
++		diepmsk.b.ahberr = 1;
++		diepmsk.b.intknepmis = 1;
++		if (!core_if->en_multiple_tx_fifo && core_if->dma_enable)
++			diepmsk.b.intknepmis = 0;
++
++/*		if (core_if->dma_desc_enable) {
++			diepmsk.b.bna = 1;
++		}
++*/
++/*
++		if (core_if->dma_enable) {
++			diepmsk.b.nak = 1;
++		}
++*/
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->diepeachintmsk[0],
++				diepmsk.d32);
++	} else {
++		daintmsk.b.inep0 = 1;
++		daintmsk.b.outep0 = 1;
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->daintmsk,
++				daintmsk.d32);
++
++		doepmsk.b.setup = 1;
++		doepmsk.b.xfercompl = 1;
++		doepmsk.b.ahberr = 1;
++		doepmsk.b.epdisabled = 1;
++
++		if ((core_if->dma_desc_enable) ||
++		    (core_if->dma_enable
++		     && core_if->snpsid >= OTG_CORE_REV_3_00a)) {
++			doepmsk.b.stsphsercvd = 1;
++		}
++		if (core_if->dma_desc_enable)
++			doepmsk.b.bna = 1;
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->doepmsk, doepmsk.d32);
++
++		diepmsk.b.xfercompl = 1;
++		diepmsk.b.timeout = 1;
++		diepmsk.b.epdisabled = 1;
++		diepmsk.b.ahberr = 1;
++		if (!core_if->en_multiple_tx_fifo && core_if->dma_enable)
++			diepmsk.b.intknepmis = 0;
++/*
++		if (core_if->dma_desc_enable) {
++			diepmsk.b.bna = 1;
++		}
++*/
++
++		DWC_WRITE_REG32(&dev_if->dev_global_regs->diepmsk, diepmsk.d32);
++	}
++
++	/* Reset Device Address */
++	dcfg.d32 = DWC_READ_REG32(&dev_if->dev_global_regs->dcfg);
++	dcfg.b.devaddr = 0;
++	DWC_WRITE_REG32(&dev_if->dev_global_regs->dcfg, dcfg.d32);
++
++	/* setup EP0 to receive SETUP packets */
++	if (core_if->snpsid <= OTG_CORE_REV_2_94a)
++		ep0_out_start(core_if, pcd);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.usbreset = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * Get the device speed from the device status register and convert it
++ * to USB speed constant.
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ */
++static int get_device_speed(dwc_otg_core_if_t * core_if)
++{
++	dsts_data_t dsts;
++	int speed = 0;
++	dsts.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dsts);
++
++	switch (dsts.b.enumspd) {
++	case DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ:
++		speed = USB_SPEED_HIGH;
++		break;
++	case DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ:
++	case DWC_DSTS_ENUMSPD_FS_PHY_48MHZ:
++		speed = USB_SPEED_FULL;
++		break;
++
++	case DWC_DSTS_ENUMSPD_LS_PHY_6MHZ:
++		speed = USB_SPEED_LOW;
++		break;
++	}
++
++	return speed;
++}
++
++/**
++ * Read the device status register and set the device speed in the
++ * data structure.
++ * Set up EP0 to receive SETUP packets by calling dwc_ep0_activate.
++ */
++int32_t dwc_otg_pcd_handle_enum_done_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	gintsts_data_t gintsts;
++	gusbcfg_data_t gusbcfg;
++	dwc_otg_core_global_regs_t *global_regs =
++	    GET_CORE_IF(pcd)->core_global_regs;
++	uint8_t utmi16b, utmi8b;
++	int speed;
++	DWC_DEBUGPL(DBG_PCD, "SPEED ENUM\n");
++
++	if (GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_2_60a) {
++		utmi16b = 6;	//vahrama old value was 6;
++		utmi8b = 9;
++	} else {
++		utmi16b = 4;
++		utmi8b = 8;
++	}
++	dwc_otg_ep0_activate(GET_CORE_IF(pcd), &ep0->dwc_ep);
++	if (GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_3_00a) {
++		ep0_out_start(GET_CORE_IF(pcd), pcd);
++	}
++
++#ifdef DEBUG_EP0
++	print_ep0_state(pcd);
++#endif
++
++	if (pcd->ep0state == EP0_DISCONNECT) {
++		pcd->ep0state = EP0_IDLE;
++	} else if (pcd->ep0state == EP0_STALL) {
++		pcd->ep0state = EP0_IDLE;
++	}
++
++	pcd->ep0state = EP0_IDLE;
++
++	ep0->stopped = 0;
++
++	speed = get_device_speed(GET_CORE_IF(pcd));
++	pcd->fops->connect(pcd, speed);
++
++	/* Set USB turnaround time based on device speed and PHY interface. */
++	gusbcfg.d32 = DWC_READ_REG32(&global_regs->gusbcfg);
++	if (speed == USB_SPEED_HIGH) {
++		if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type ==
++		    DWC_HWCFG2_HS_PHY_TYPE_ULPI) {
++			/* ULPI interface */
++			gusbcfg.b.usbtrdtim = 9;
++		}
++		if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type ==
++		    DWC_HWCFG2_HS_PHY_TYPE_UTMI) {
++			/* UTMI+ interface */
++			if (GET_CORE_IF(pcd)->hwcfg4.b.utmi_phy_data_width == 0) {
++				gusbcfg.b.usbtrdtim = utmi8b;
++			} else if (GET_CORE_IF(pcd)->hwcfg4.
++				   b.utmi_phy_data_width == 1) {
++				gusbcfg.b.usbtrdtim = utmi16b;
++			} else if (GET_CORE_IF(pcd)->
++				   core_params->phy_utmi_width == 8) {
++				gusbcfg.b.usbtrdtim = utmi8b;
++			} else {
++				gusbcfg.b.usbtrdtim = utmi16b;
++			}
++		}
++		if (GET_CORE_IF(pcd)->hwcfg2.b.hs_phy_type ==
++		    DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI) {
++			/* UTMI+  OR  ULPI interface */
++			if (gusbcfg.b.ulpi_utmi_sel == 1) {
++				/* ULPI interface */
++				gusbcfg.b.usbtrdtim = 9;
++			} else {
++				/* UTMI+ interface */
++				if (GET_CORE_IF(pcd)->
++				    core_params->phy_utmi_width == 16) {
++					gusbcfg.b.usbtrdtim = utmi16b;
++				} else {
++					gusbcfg.b.usbtrdtim = utmi8b;
++				}
++			}
++		}
++	} else {
++		/* Full or low speed */
++		gusbcfg.b.usbtrdtim = 9;
++	}
++	DWC_WRITE_REG32(&global_regs->gusbcfg, gusbcfg.d32);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.enumdone = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++	return 1;
++}
++
++/**
++ * This interrupt indicates that the ISO OUT Packet was dropped due to
++ * Rx FIFO full or Rx Status Queue Full.  If this interrupt occurs
++ * read all the data from the Rx FIFO.
++ */
++int32_t dwc_otg_pcd_handle_isoc_out_packet_dropped_intr(dwc_otg_pcd_t * pcd)
++{
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	gintsts_data_t gintsts;
++
++	DWC_WARN("INTERRUPT Handler not implemented for %s\n",
++		 "ISOC Out Dropped");
++
++	intr_mask.b.isooutdrop = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.isooutdrop = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates the end of the portion of the micro-frame
++ * for periodic transactions.  If there is a periodic transaction for
++ * the next frame, load the packets into the EP periodic Tx FIFO.
++ */
++int32_t dwc_otg_pcd_handle_end_periodic_frame_intr(dwc_otg_pcd_t * pcd)
++{
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	gintsts_data_t gintsts;
++	DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "EOP");
++
++	intr_mask.b.eopframe = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.eopframe = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that EP of the packet on the top of the
++ * non-periodic Tx FIFO does not match EP of the IN Token received.
++ *
++ * The "Device IN Token Queue" Registers are read to determine the
++ * order the IN Tokens have been received. The non-periodic Tx FIFO
++ * is flushed, so it can be reloaded in the order seen in the IN Token
++ * Queue.
++ */
++int32_t dwc_otg_pcd_handle_ep_mismatch_intr(dwc_otg_pcd_t * pcd)
++{
++	gintsts_data_t gintsts;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dctl_data_t dctl;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	if (!core_if->en_multiple_tx_fifo && core_if->dma_enable) {
++		core_if->start_predict = 1;
++
++		DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if);
++
++		gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++		if (!gintsts.b.ginnakeff) {
++			/* Disable EP Mismatch interrupt */
++			intr_mask.d32 = 0;
++			intr_mask.b.epmismatch = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, intr_mask.d32, 0);
++			/* Enable the Global IN NAK Effective Interrupt */
++			intr_mask.d32 = 0;
++			intr_mask.b.ginnakeff = 1;
++			DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, intr_mask.d32);
++			/* Set the global non-periodic IN NAK handshake */
++			dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
++			dctl.b.sgnpinnak = 1;
++			DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32);
++		} else {
++			DWC_PRINTF("gintsts.b.ginnakeff = 1! dctl.b.sgnpinnak not set\n");
++		}
++		/* Disabling of all EP's will be done in dwc_otg_pcd_handle_in_nak_effective()
++		 * handler after Global IN NAK Effective interrupt will be asserted */
++	}
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.epmismatch = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This interrupt is valid only in DMA mode. This interrupt indicates that the
++ * core has stopped fetching data for IN endpoints due to the unavailability of
++ * TxFIFO space or Request Queue space. This interrupt is used by the
++ * application for an endpoint mismatch algorithm.
++ *
++ * @param pcd The PCD
++ */
++int32_t dwc_otg_pcd_handle_ep_fetsusp_intr(dwc_otg_pcd_t * pcd)
++{
++	gintsts_data_t gintsts;
++	gintmsk_data_t gintmsk_data;
++	dctl_data_t dctl;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, core_if);
++
++	/* Clear the global non-periodic IN NAK handshake */
++	dctl.d32 = 0;
++	dctl.b.cgnpinnak = 1;
++	DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
++
++	/* Mask GINTSTS.FETSUSP interrupt */
++	gintmsk_data.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++	gintmsk_data.b.fetsusp = 0;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk_data.d32);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.fetsusp = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->gintsts, gintsts.d32);
++
++	return 1;
++}
++/**
++ * This funcion stalls EP0.
++ */
++static inline void ep0_do_stall(dwc_otg_pcd_t * pcd, const int err_val)
++{
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	usb_device_request_t *ctrl = &pcd->setup_pkt->req;
++	DWC_WARN("req %02x.%02x protocol STALL; err %d\n",
++		 ctrl->bmRequestType, ctrl->bRequest, err_val);
++
++	ep0->dwc_ep.is_in = 1;
++	dwc_otg_ep_set_stall(GET_CORE_IF(pcd), &ep0->dwc_ep);
++	pcd->ep0.stopped = 1;
++	pcd->ep0state = EP0_IDLE;
++	ep0_out_start(GET_CORE_IF(pcd), pcd);
++}
++
++/**
++ * This functions delegates the setup command to the gadget driver.
++ */
++static inline void do_gadget_setup(dwc_otg_pcd_t * pcd,
++				   usb_device_request_t * ctrl)
++{
++	int ret = 0;
++	DWC_SPINUNLOCK(pcd->lock);
++	ret = pcd->fops->setup(pcd, (uint8_t *) ctrl);
++	DWC_SPINLOCK(pcd->lock);
++	if (ret < 0) {
++		ep0_do_stall(pcd, ret);
++	}
++
++	/** @todo This is a g_file_storage gadget driver specific
++	 * workaround: a DELAYED_STATUS result from the fsg_setup
++	 * routine will result in the gadget queueing a EP0 IN status
++	 * phase for a two-stage control transfer. Exactly the same as
++	 * a SET_CONFIGURATION/SET_INTERFACE except that this is a class
++	 * specific request.  Need a generic way to know when the gadget
++	 * driver will queue the status phase. Can we assume when we
++	 * call the gadget driver setup() function that it will always
++	 * queue and require the following flag? Need to look into
++	 * this.
++	 */
++
++	if (ret == 256 + 999) {
++		pcd->request_config = 1;
++	}
++}
++
++#ifdef DWC_UTE_CFI
++/**
++ * This functions delegates the CFI setup commands to the gadget driver.
++ * This function will return a negative value to indicate a failure.
++ */
++static inline int cfi_gadget_setup(dwc_otg_pcd_t * pcd,
++				   struct cfi_usb_ctrlrequest *ctrl_req)
++{
++	int ret = 0;
++
++	if (pcd->fops && pcd->fops->cfi_setup) {
++		DWC_SPINUNLOCK(pcd->lock);
++		ret = pcd->fops->cfi_setup(pcd, ctrl_req);
++		DWC_SPINLOCK(pcd->lock);
++		if (ret < 0) {
++			ep0_do_stall(pcd, ret);
++			return ret;
++		}
++	}
++
++	return ret;
++}
++#endif
++
++/**
++ * This function starts the Zero-Length Packet for the IN status phase
++ * of a 2 stage control transfer.
++ */
++static inline void do_setup_in_status_phase(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	if (pcd->ep0state == EP0_STALL) {
++		return;
++	}
++
++	pcd->ep0state = EP0_IN_STATUS_PHASE;
++
++	/* Prepare for more SETUP Packets */
++	DWC_DEBUGPL(DBG_PCD, "EP0 IN ZLP\n");
++	if ((GET_CORE_IF(pcd)->snpsid >= OTG_CORE_REV_3_00a)
++	    && (pcd->core_if->dma_desc_enable)
++	    && (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len)) {
++		DWC_DEBUGPL(DBG_PCDV,
++			    "Data terminated wait next packet in out_desc_addr\n");
++		pcd->backup_buf = phys_to_virt(ep0->dwc_ep.dma_addr);
++		pcd->data_terminated = 1;
++	}
++	ep0->dwc_ep.xfer_len = 0;
++	ep0->dwc_ep.xfer_count = 0;
++	ep0->dwc_ep.is_in = 1;
++	ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle;
++	dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep);
++
++	/* Prepare for more SETUP Packets */
++	//ep0_out_start(GET_CORE_IF(pcd), pcd);
++}
++
++/**
++ * This function starts the Zero-Length Packet for the OUT status phase
++ * of a 2 stage control transfer.
++ */
++static inline void do_setup_out_status_phase(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	if (pcd->ep0state == EP0_STALL) {
++		DWC_DEBUGPL(DBG_PCD, "EP0 STALLED\n");
++		return;
++	}
++	pcd->ep0state = EP0_OUT_STATUS_PHASE;
++
++	DWC_DEBUGPL(DBG_PCD, "EP0 OUT ZLP\n");
++	ep0->dwc_ep.xfer_len = 0;
++	ep0->dwc_ep.xfer_count = 0;
++	ep0->dwc_ep.is_in = 0;
++	ep0->dwc_ep.dma_addr = pcd->setup_pkt_dma_handle;
++	dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep);
++
++	/* Prepare for more SETUP Packets */
++	if (GET_CORE_IF(pcd)->dma_enable == 0) {
++		ep0_out_start(GET_CORE_IF(pcd), pcd);
++	}
++}
++
++/**
++ * Clear the EP halt (STALL) and if pending requests start the
++ * transfer.
++ */
++static inline void pcd_clear_halt(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep)
++{
++	if (ep->dwc_ep.stall_clear_flag == 0)
++		dwc_otg_ep_clear_stall(GET_CORE_IF(pcd), &ep->dwc_ep);
++
++	/* Reactive the EP */
++	dwc_otg_ep_activate(GET_CORE_IF(pcd), &ep->dwc_ep);
++	if (ep->stopped) {
++		ep->stopped = 0;
++		/* If there is a request in the EP queue start it */
++
++		/** @todo FIXME: this causes an EP mismatch in DMA mode.
++		 * epmismatch not yet implemented. */
++
++		/*
++		 * Above fixme is solved by implmenting a tasklet to call the
++		 * start_next_request(), outside of interrupt context at some
++		 * time after the current time, after a clear-halt setup packet.
++		 * Still need to implement ep mismatch in the future if a gadget
++		 * ever uses more than one endpoint at once
++		 */
++		ep->queue_sof = 1;
++		DWC_TASK_SCHEDULE(pcd->start_xfer_tasklet);
++	}
++	/* Start Control Status Phase */
++	do_setup_in_status_phase(pcd);
++}
++
++/**
++ * This function is called when the SET_FEATURE TEST_MODE Setup packet
++ * is sent from the host.  The Device Control register is written with
++ * the Test Mode bits set to the specified Test Mode.  This is done as
++ * a tasklet so that the "Status" phase of the control transfer
++ * completes before transmitting the TEST packets.
++ *
++ * @todo This has not been tested since the tasklet struct was put
++ * into the PCD struct!
++ *
++ */
++void do_test_mode(void *data)
++{
++	dctl_data_t dctl;
++	dwc_otg_pcd_t *pcd = (dwc_otg_pcd_t *) data;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	int test_mode = pcd->test_mode;
++
++//        DWC_WARN("%s() has not been tested since being rewritten!\n", __func__);
++
++	dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
++	switch (test_mode) {
++	case 1:		// TEST_J
++		dctl.b.tstctl = 1;
++		break;
++
++	case 2:		// TEST_K
++		dctl.b.tstctl = 2;
++		break;
++
++	case 3:		// TEST_SE0_NAK
++		dctl.b.tstctl = 3;
++		break;
++
++	case 4:		// TEST_PACKET
++		dctl.b.tstctl = 4;
++		break;
++
++	case 5:		// TEST_FORCE_ENABLE
++		dctl.b.tstctl = 5;
++		break;
++	}
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32);
++}
++
++/**
++ * This function process the GET_STATUS Setup Commands.
++ */
++static inline void do_get_status(dwc_otg_pcd_t * pcd)
++{
++	usb_device_request_t ctrl = pcd->setup_pkt->req;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	uint16_t *status = pcd->status_buf;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++
++#ifdef DEBUG_EP0
++	DWC_DEBUGPL(DBG_PCD,
++		    "GET_STATUS %02x.%02x v%04x i%04x l%04x\n",
++		    ctrl.bmRequestType, ctrl.bRequest,
++		    UGETW(ctrl.wValue), UGETW(ctrl.wIndex),
++		    UGETW(ctrl.wLength));
++#endif
++
++	switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) {
++	case UT_DEVICE:
++		if(UGETW(ctrl.wIndex) == 0xF000) { /* OTG Status selector */
++			DWC_PRINTF("wIndex - %d\n", UGETW(ctrl.wIndex));
++			DWC_PRINTF("OTG VERSION - %d\n", core_if->otg_ver);
++			DWC_PRINTF("OTG CAP - %d, %d\n",
++				   core_if->core_params->otg_cap,
++						DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE);
++			if (core_if->otg_ver == 1
++			    && core_if->core_params->otg_cap ==
++			    DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) {
++				uint8_t *otgsts = (uint8_t*)pcd->status_buf;
++				*otgsts = (core_if->otg_sts & 0x1);
++				pcd->ep0_pending = 1;
++				ep0->dwc_ep.start_xfer_buff =
++				    (uint8_t *) otgsts;
++				ep0->dwc_ep.xfer_buff = (uint8_t *) otgsts;
++				ep0->dwc_ep.dma_addr =
++				    pcd->status_buf_dma_handle;
++				ep0->dwc_ep.xfer_len = 1;
++				ep0->dwc_ep.xfer_count = 0;
++				ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len;
++				dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd),
++							   &ep0->dwc_ep);
++				return;
++			} else {
++				ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++				return;
++			}
++			break;
++		} else {
++			*status = 0x1;	/* Self powered */
++			*status |= pcd->remote_wakeup_enable << 1;
++			break;
++		}
++	case UT_INTERFACE:
++		*status = 0;
++		break;
++
++	case UT_ENDPOINT:
++		ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex));
++		if (ep == 0 || UGETW(ctrl.wLength) > 2) {
++			ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++			return;
++		}
++		/** @todo check for EP stall */
++		*status = ep->stopped;
++		break;
++	}
++	pcd->ep0_pending = 1;
++	ep0->dwc_ep.start_xfer_buff = (uint8_t *) status;
++	ep0->dwc_ep.xfer_buff = (uint8_t *) status;
++	ep0->dwc_ep.dma_addr = pcd->status_buf_dma_handle;
++	ep0->dwc_ep.xfer_len = 2;
++	ep0->dwc_ep.xfer_count = 0;
++	ep0->dwc_ep.total_len = ep0->dwc_ep.xfer_len;
++	dwc_otg_ep0_start_transfer(GET_CORE_IF(pcd), &ep0->dwc_ep);
++}
++
++/**
++ * This function process the SET_FEATURE Setup Commands.
++ */
++static inline void do_set_feature(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++	usb_device_request_t ctrl = pcd->setup_pkt->req;
++	dwc_otg_pcd_ep_t *ep = 0;
++	int32_t otg_cap_param = core_if->core_params->otg_cap;
++	gotgctl_data_t gotgctl = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_PCD, "SET_FEATURE:%02x.%02x v%04x i%04x l%04x\n",
++		    ctrl.bmRequestType, ctrl.bRequest,
++		    UGETW(ctrl.wValue), UGETW(ctrl.wIndex),
++		    UGETW(ctrl.wLength));
++	DWC_DEBUGPL(DBG_PCD, "otg_cap=%d\n", otg_cap_param);
++
++	switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) {
++	case UT_DEVICE:
++		switch (UGETW(ctrl.wValue)) {
++		case UF_DEVICE_REMOTE_WAKEUP:
++			pcd->remote_wakeup_enable = 1;
++			break;
++
++		case UF_TEST_MODE:
++			/* Setup the Test Mode tasklet to do the Test
++			 * Packet generation after the SETUP Status
++			 * phase has completed. */
++
++			/** @todo This has not been tested since the
++			 * tasklet struct was put into the PCD
++			 * struct! */
++			pcd->test_mode = UGETW(ctrl.wIndex) >> 8;
++			DWC_TASK_SCHEDULE(pcd->test_mode_tasklet);
++			break;
++
++		case UF_DEVICE_B_HNP_ENABLE:
++			DWC_DEBUGPL(DBG_PCDV,
++				    "SET_FEATURE: USB_DEVICE_B_HNP_ENABLE\n");
++
++			/* dev may initiate HNP */
++			if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) {
++				pcd->b_hnp_enable = 1;
++				dwc_otg_pcd_update_otg(pcd, 0);
++				DWC_DEBUGPL(DBG_PCD, "Request B HNP\n");
++				/**@todo Is the gotgctl.devhnpen cleared
++				 * by a USB Reset? */
++				gotgctl.b.devhnpen = 1;
++				gotgctl.b.hnpreq = 1;
++				DWC_WRITE_REG32(&global_regs->gotgctl,
++						gotgctl.d32);
++			} else {
++				ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++				return;
++			}
++			break;
++
++		case UF_DEVICE_A_HNP_SUPPORT:
++			/* RH port supports HNP */
++			DWC_DEBUGPL(DBG_PCDV,
++				    "SET_FEATURE: USB_DEVICE_A_HNP_SUPPORT\n");
++			if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) {
++				pcd->a_hnp_support = 1;
++				dwc_otg_pcd_update_otg(pcd, 0);
++			} else {
++				ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++				return;
++			}
++			break;
++
++		case UF_DEVICE_A_ALT_HNP_SUPPORT:
++			/* other RH port does */
++			DWC_DEBUGPL(DBG_PCDV,
++				    "SET_FEATURE: USB_DEVICE_A_ALT_HNP_SUPPORT\n");
++			if (otg_cap_param == DWC_OTG_CAP_PARAM_HNP_SRP_CAPABLE) {
++				pcd->a_alt_hnp_support = 1;
++				dwc_otg_pcd_update_otg(pcd, 0);
++			} else {
++				ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++				return;
++			}
++			break;
++
++		default:
++			ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++			return;
++
++		}
++		do_setup_in_status_phase(pcd);
++		break;
++
++	case UT_INTERFACE:
++		do_gadget_setup(pcd, &ctrl);
++		break;
++
++	case UT_ENDPOINT:
++		if (UGETW(ctrl.wValue) == UF_ENDPOINT_HALT) {
++			ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex));
++			if (ep == 0) {
++				ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++				return;
++			}
++			ep->stopped = 1;
++			dwc_otg_ep_set_stall(core_if, &ep->dwc_ep);
++		}
++		do_setup_in_status_phase(pcd);
++		break;
++	}
++}
++
++/**
++ * This function process the CLEAR_FEATURE Setup Commands.
++ */
++static inline void do_clear_feature(dwc_otg_pcd_t * pcd)
++{
++	usb_device_request_t ctrl = pcd->setup_pkt->req;
++	dwc_otg_pcd_ep_t *ep = 0;
++
++	DWC_DEBUGPL(DBG_PCD,
++		    "CLEAR_FEATURE:%02x.%02x v%04x i%04x l%04x\n",
++		    ctrl.bmRequestType, ctrl.bRequest,
++		    UGETW(ctrl.wValue), UGETW(ctrl.wIndex),
++		    UGETW(ctrl.wLength));
++
++	switch (UT_GET_RECIPIENT(ctrl.bmRequestType)) {
++	case UT_DEVICE:
++		switch (UGETW(ctrl.wValue)) {
++		case UF_DEVICE_REMOTE_WAKEUP:
++			pcd->remote_wakeup_enable = 0;
++			break;
++
++		case UF_TEST_MODE:
++			/** @todo Add CLEAR_FEATURE for TEST modes. */
++			break;
++
++		default:
++			ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++			return;
++		}
++		do_setup_in_status_phase(pcd);
++		break;
++
++	case UT_ENDPOINT:
++		ep = get_ep_by_addr(pcd, UGETW(ctrl.wIndex));
++		if (ep == 0) {
++			ep0_do_stall(pcd, -DWC_E_NOT_SUPPORTED);
++			return;
++		}
++
++		pcd_clear_halt(pcd, ep);
++
++		break;
++	}
++}
++
++/**
++ * This function process the SET_ADDRESS Setup Commands.
++ */
++static inline void do_set_address(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if;
++	usb_device_request_t ctrl = pcd->setup_pkt->req;
++
++	if (ctrl.bmRequestType == UT_DEVICE) {
++		dcfg_data_t dcfg = {.d32 = 0 };
++
++#ifdef DEBUG_EP0
++//                      DWC_DEBUGPL(DBG_PCDV, "SET_ADDRESS:%d\n", ctrl.wValue);
++#endif
++		dcfg.b.devaddr = UGETW(ctrl.wValue);
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->dcfg, 0, dcfg.d32);
++		do_setup_in_status_phase(pcd);
++	}
++}
++
++/**
++ *	This function processes SETUP commands. In Linux, the USB Command
++ *	processing is done in two places - the first being the PCD and the
++ *	second in the Gadget Driver (for example, the File-Backed Storage
++ *	Gadget Driver).
++ *
++ * <table>
++ * <tr><td>Command	</td><td>Driver </td><td>Description</td></tr>
++ *
++ * <tr><td>GET_STATUS </td><td>PCD </td><td>Command is processed as
++ * defined in chapter 9 of the USB 2.0 Specification chapter 9
++ * </td></tr>
++ *
++ * <tr><td>CLEAR_FEATURE </td><td>PCD </td><td>The Device and Endpoint
++ * requests are the ENDPOINT_HALT feature is procesed, all others the
++ * interface requests are ignored.</td></tr>
++ *
++ * <tr><td>SET_FEATURE </td><td>PCD </td><td>The Device and Endpoint
++ * requests are processed by the PCD.  Interface requests are passed
++ * to the Gadget Driver.</td></tr>
++ *
++ * <tr><td>SET_ADDRESS </td><td>PCD </td><td>Program the DCFG reg,
++ * with device address received </td></tr>
++ *
++ * <tr><td>GET_DESCRIPTOR </td><td>Gadget Driver </td><td>Return the
++ * requested descriptor</td></tr>
++ *
++ * <tr><td>SET_DESCRIPTOR </td><td>Gadget Driver </td><td>Optional -
++ * not implemented by any of the existing Gadget Drivers.</td></tr>
++ *
++ * <tr><td>SET_CONFIGURATION </td><td>Gadget Driver </td><td>Disable
++ * all EPs and enable EPs for new configuration.</td></tr>
++ *
++ * <tr><td>GET_CONFIGURATION </td><td>Gadget Driver </td><td>Return
++ * the current configuration</td></tr>
++ *
++ * <tr><td>SET_INTERFACE </td><td>Gadget Driver </td><td>Disable all
++ * EPs and enable EPs for new configuration.</td></tr>
++ *
++ * <tr><td>GET_INTERFACE </td><td>Gadget Driver </td><td>Return the
++ * current interface.</td></tr>
++ *
++ * <tr><td>SYNC_FRAME </td><td>PCD </td><td>Display debug
++ * message.</td></tr>
++ * </table>
++ *
++ * When the SETUP Phase Done interrupt occurs, the PCD SETUP commands are
++ * processed by pcd_setup. Calling the Function Driver's setup function from
++ * pcd_setup processes the gadget SETUP commands.
++ */
++static inline void pcd_setup(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	usb_device_request_t ctrl = pcd->setup_pkt->req;
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++
++	deptsiz0_data_t doeptsize0 = {.d32 = 0 };
++
++#ifdef DWC_UTE_CFI
++	int retval = 0;
++	struct cfi_usb_ctrlrequest cfi_req;
++#endif
++
++	doeptsize0.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doeptsiz);
++
++	/** In BDMA more then 1 setup packet is not supported till 3.00a */
++	if (core_if->dma_enable && core_if->dma_desc_enable == 0
++	    && (doeptsize0.b.supcnt < 2)
++	    && (core_if->snpsid < OTG_CORE_REV_2_94a)) {
++		DWC_ERROR
++		    ("\n\n-----------	 CANNOT handle > 1 setup packet in DMA mode\n\n");
++	}
++	if ((core_if->snpsid >= OTG_CORE_REV_3_00a)
++	    && (core_if->dma_enable == 1) && (core_if->dma_desc_enable == 0)) {
++		ctrl =
++		    (pcd->setup_pkt +
++		     (3 - doeptsize0.b.supcnt - 1 +
++		      ep0->dwc_ep.stp_rollover))->req;
++	}
++#ifdef DEBUG_EP0
++	DWC_DEBUGPL(DBG_PCD, "SETUP %02x.%02x v%04x i%04x l%04x\n",
++		    ctrl.bmRequestType, ctrl.bRequest,
++		    UGETW(ctrl.wValue), UGETW(ctrl.wIndex),
++		    UGETW(ctrl.wLength));
++#endif
++
++	/* Clean up the request queue */
++	dwc_otg_request_nuke(ep0);
++	ep0->stopped = 0;
++
++	if (ctrl.bmRequestType & UE_DIR_IN) {
++		ep0->dwc_ep.is_in = 1;
++		pcd->ep0state = EP0_IN_DATA_PHASE;
++	} else {
++		ep0->dwc_ep.is_in = 0;
++		pcd->ep0state = EP0_OUT_DATA_PHASE;
++	}
++
++	if (UGETW(ctrl.wLength) == 0) {
++		ep0->dwc_ep.is_in = 1;
++		pcd->ep0state = EP0_IN_STATUS_PHASE;
++	}
++
++	if (UT_GET_TYPE(ctrl.bmRequestType) != UT_STANDARD) {
++
++#ifdef DWC_UTE_CFI
++		DWC_MEMCPY(&cfi_req, &ctrl, sizeof(usb_device_request_t));
++
++		//printk(KERN_ALERT "CFI: req_type=0x%02x; req=0x%02x\n",
++				ctrl.bRequestType, ctrl.bRequest);
++		if (UT_GET_TYPE(cfi_req.bRequestType) == UT_VENDOR) {
++			if (cfi_req.bRequest > 0xB0 && cfi_req.bRequest < 0xBF) {
++				retval = cfi_setup(pcd, &cfi_req);
++				if (retval < 0) {
++					ep0_do_stall(pcd, retval);
++					pcd->ep0_pending = 0;
++					return;
++				}
++
++				/* if need gadget setup then call it and check the retval */
++				if (pcd->cfi->need_gadget_att) {
++					retval =
++					    cfi_gadget_setup(pcd,
++							     &pcd->
++							     cfi->ctrl_req);
++					if (retval < 0) {
++						pcd->ep0_pending = 0;
++						return;
++					}
++				}
++
++				if (pcd->cfi->need_status_in_complete) {
++					do_setup_in_status_phase(pcd);
++				}
++				return;
++			}
++		}
++#endif
++
++		/* handle non-standard (class/vendor) requests in the gadget driver */
++		do_gadget_setup(pcd, &ctrl);
++		return;
++	}
++
++	/** @todo NGS: Handle bad setup packet? */
++
++///////////////////////////////////////////
++//// --- Standard Request handling --- ////
++
++	switch (ctrl.bRequest) {
++	case UR_GET_STATUS:
++		do_get_status(pcd);
++		break;
++
++	case UR_CLEAR_FEATURE:
++		do_clear_feature(pcd);
++		break;
++
++	case UR_SET_FEATURE:
++		do_set_feature(pcd);
++		break;
++
++	case UR_SET_ADDRESS:
++		do_set_address(pcd);
++		break;
++
++	case UR_SET_INTERFACE:
++	case UR_SET_CONFIG:
++//              _pcd->request_config = 1;       /* Configuration changed */
++		do_gadget_setup(pcd, &ctrl);
++		break;
++
++	case UR_SYNCH_FRAME:
++		do_gadget_setup(pcd, &ctrl);
++		break;
++
++	default:
++		/* Call the Gadget Driver's setup functions */
++		do_gadget_setup(pcd, &ctrl);
++		break;
++	}
++}
++
++/**
++ * This function completes the ep0 control transfer.
++ */
++static int32_t ep0_complete_request(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dwc_otg_dev_in_ep_regs_t *in_ep_regs =
++	    dev_if->in_ep_regs[ep->dwc_ep.num];
++#ifdef DEBUG_EP0
++	dwc_otg_dev_out_ep_regs_t *out_ep_regs =
++	    dev_if->out_ep_regs[ep->dwc_ep.num];
++#endif
++	deptsiz0_data_t deptsiz;
++	dev_dma_desc_sts_t desc_sts;
++	dwc_otg_pcd_request_t *req;
++	int is_last = 0;
++	dwc_otg_pcd_t *pcd = ep->pcd;
++
++#ifdef DWC_UTE_CFI
++	struct cfi_usb_ctrlrequest *ctrlreq;
++	int retval = -DWC_E_NOT_SUPPORTED;
++#endif
++
++        desc_sts.b.bytes = 0;
++
++	if (pcd->ep0_pending && DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		if (ep->dwc_ep.is_in) {
++#ifdef DEBUG_EP0
++			DWC_DEBUGPL(DBG_PCDV, "Do setup OUT status phase\n");
++#endif
++			do_setup_out_status_phase(pcd);
++		} else {
++#ifdef DEBUG_EP0
++			DWC_DEBUGPL(DBG_PCDV, "Do setup IN status phase\n");
++#endif
++
++#ifdef DWC_UTE_CFI
++			ctrlreq = &pcd->cfi->ctrl_req;
++
++			if (UT_GET_TYPE(ctrlreq->bRequestType) == UT_VENDOR) {
++				if (ctrlreq->bRequest > 0xB0
++				    && ctrlreq->bRequest < 0xBF) {
++
++					/* Return if the PCD failed to handle the request */
++					if ((retval =
++					     pcd->cfi->ops.
++					     ctrl_write_complete(pcd->cfi,
++								 pcd)) < 0) {
++						CFI_INFO
++						    ("ERROR setting a new value in the PCD(%d)\n",
++						     retval);
++						ep0_do_stall(pcd, retval);
++						pcd->ep0_pending = 0;
++						return 0;
++					}
++
++					/* If the gadget needs to be notified on the request */
++					if (pcd->cfi->need_gadget_att == 1) {
++						//retval = do_gadget_setup(pcd, &pcd->cfi->ctrl_req);
++						retval =
++						    cfi_gadget_setup(pcd,
++								     &pcd->cfi->
++								     ctrl_req);
++
++						/* Return from the function if the gadget failed to process
++						 * the request properly - this should never happen !!!
++						 */
++						if (retval < 0) {
++							CFI_INFO
++							    ("ERROR setting a new value in the gadget(%d)\n",
++							     retval);
++							pcd->ep0_pending = 0;
++							return 0;
++						}
++					}
++
++					CFI_INFO("%s: RETVAL=%d\n", __func__,
++						 retval);
++					/* If we hit here then the PCD and the gadget has properly
++					 * handled the request - so send the ZLP IN to the host.
++					 */
++					/* @todo: MAS - decide whether we need to start the setup
++					 * stage based on the need_setup value of the cfi object
++					 */
++					do_setup_in_status_phase(pcd);
++					pcd->ep0_pending = 0;
++					return 1;
++				}
++			}
++#endif
++
++			do_setup_in_status_phase(pcd);
++		}
++		pcd->ep0_pending = 0;
++		return 1;
++	}
++
++	if (DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		return 0;
++	}
++	req = DWC_CIRCLEQ_FIRST(&ep->queue);
++
++	if (pcd->ep0state == EP0_OUT_STATUS_PHASE
++	    || pcd->ep0state == EP0_IN_STATUS_PHASE) {
++		is_last = 1;
++	} else if (ep->dwc_ep.is_in) {
++		deptsiz.d32 = DWC_READ_REG32(&in_ep_regs->dieptsiz);
++		if (core_if->dma_desc_enable != 0)
++			desc_sts = dev_if->in_desc_addr->status;
++#ifdef DEBUG_EP0
++		DWC_DEBUGPL(DBG_PCDV, "%d len=%d  xfersize=%d pktcnt=%d\n",
++			    ep->dwc_ep.num, ep->dwc_ep.xfer_len,
++			    deptsiz.b.xfersize, deptsiz.b.pktcnt);
++#endif
++
++		if (((core_if->dma_desc_enable == 0)
++		     && (deptsiz.b.xfersize == 0))
++		    || ((core_if->dma_desc_enable != 0)
++			&& (desc_sts.b.bytes == 0))) {
++			req->actual = ep->dwc_ep.xfer_count;
++			/* Is a Zero Len Packet needed? */
++			if (req->sent_zlp) {
++#ifdef DEBUG_EP0
++				DWC_DEBUGPL(DBG_PCD, "Setup Rx ZLP\n");
++#endif
++				req->sent_zlp = 0;
++			}
++			do_setup_out_status_phase(pcd);
++		}
++	} else {
++		/* ep0-OUT */
++#ifdef DEBUG_EP0
++		deptsiz.d32 = DWC_READ_REG32(&out_ep_regs->doeptsiz);
++		DWC_DEBUGPL(DBG_PCDV, "%d len=%d xsize=%d pktcnt=%d\n",
++			    ep->dwc_ep.num, ep->dwc_ep.xfer_len,
++			    deptsiz.b.xfersize, deptsiz.b.pktcnt);
++#endif
++		req->actual = ep->dwc_ep.xfer_count;
++
++		/* Is a Zero Len Packet needed? */
++		if (req->sent_zlp) {
++#ifdef DEBUG_EP0
++			DWC_DEBUGPL(DBG_PCDV, "Setup Tx ZLP\n");
++#endif
++			req->sent_zlp = 0;
++		}
++		/* For older cores do setup in status phase in Slave/BDMA modes,
++		 * starting from 3.00 do that only in slave, and for DMA modes
++		 * just re-enable ep 0 OUT here*/
++		if (core_if->dma_enable == 0
++		    || (core_if->dma_desc_enable == 0
++			&& core_if->snpsid <= OTG_CORE_REV_2_94a)) {
++			do_setup_in_status_phase(pcd);
++		} else if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++			DWC_DEBUGPL(DBG_PCDV,
++				    "Enable out ep before in status phase\n");
++			ep0_out_start(core_if, pcd);
++		}
++	}
++
++	/* Complete the request */
++	if (is_last) {
++		dwc_otg_request_done(ep, req, 0);
++		ep->dwc_ep.start_xfer_buff = 0;
++		ep->dwc_ep.xfer_buff = 0;
++		ep->dwc_ep.xfer_len = 0;
++		return 1;
++	}
++	return 0;
++}
++
++#ifdef DWC_UTE_CFI
++/**
++ * This function calculates traverses all the CFI DMA descriptors and
++ * and accumulates the bytes that are left to be transfered.
++ *
++ * @return The total bytes left to transfered, or a negative value as failure
++ */
++static inline int cfi_calc_desc_residue(dwc_otg_pcd_ep_t * ep)
++{
++	int32_t ret = 0;
++	int i;
++	struct dwc_otg_dma_desc *ddesc = NULL;
++	struct cfi_ep *cfiep;
++
++	/* See if the pcd_ep has its respective cfi_ep mapped */
++	cfiep = get_cfi_ep_by_pcd_ep(ep->pcd->cfi, ep);
++	if (!cfiep) {
++		CFI_INFO("%s: Failed to find ep\n", __func__);
++		return -1;
++	}
++
++	ddesc = ep->dwc_ep.descs;
++
++	for (i = 0; (i < cfiep->desc_count) && (i < MAX_DMA_DESCS_PER_EP); i++) {
++
++#if defined(PRINT_CFI_DMA_DESCS)
++		print_desc(ddesc, ep->ep.name, i);
++#endif
++		ret += ddesc->status.b.bytes;
++		ddesc++;
++	}
++
++	if (ret)
++		CFI_INFO("!!!!!!!!!! WARNING (%s) - residue=%d\n", __func__,
++			 ret);
++
++	return ret;
++}
++#endif
++
++/**
++ * This function completes the request for the EP. If there are
++ * additional requests for the EP in the queue they will be started.
++ */
++static void complete_ep(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd);
++	struct device *dev = dwc_otg_pcd_to_dev(ep->pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	dwc_otg_dev_in_ep_regs_t *in_ep_regs =
++	    dev_if->in_ep_regs[ep->dwc_ep.num];
++	deptsiz_data_t deptsiz;
++	dev_dma_desc_sts_t desc_sts;
++	dwc_otg_pcd_request_t *req = 0;
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	uint32_t byte_count = 0;
++	int is_last = 0;
++	int i;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s() %d-%s\n", __func__, ep->dwc_ep.num,
++		    (ep->dwc_ep.is_in ? "IN" : "OUT"));
++
++	/* Get any pending requests */
++	if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++		req = DWC_CIRCLEQ_FIRST(&ep->queue);
++		if (!req) {
++			DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep);
++			return;
++		}
++	} else {
++		DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep);
++		return;
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "Requests %d\n", ep->pcd->request_pending);
++
++	if (ep->dwc_ep.is_in) {
++		deptsiz.d32 = DWC_READ_REG32(&in_ep_regs->dieptsiz);
++
++		if (core_if->dma_enable) {
++			if (core_if->dma_desc_enable == 0) {
++				if (deptsiz.b.xfersize == 0
++				    && deptsiz.b.pktcnt == 0) {
++					byte_count =
++					    ep->dwc_ep.xfer_len -
++					    ep->dwc_ep.xfer_count;
++
++					ep->dwc_ep.xfer_buff += byte_count;
++					ep->dwc_ep.dma_addr += byte_count;
++					ep->dwc_ep.xfer_count += byte_count;
++
++					DWC_DEBUGPL(DBG_PCDV,
++						    "%d-%s len=%d  xfersize=%d pktcnt=%d\n",
++						    ep->dwc_ep.num,
++						    (ep->dwc_ep.
++						     is_in ? "IN" : "OUT"),
++						    ep->dwc_ep.xfer_len,
++						    deptsiz.b.xfersize,
++						    deptsiz.b.pktcnt);
++
++					if (ep->dwc_ep.xfer_len <
++					    ep->dwc_ep.total_len) {
++						dwc_otg_ep_start_transfer
++						    (core_if, &ep->dwc_ep);
++					} else if (ep->dwc_ep.sent_zlp) {
++						/*
++						 * This fragment of code should initiate 0
++						 * length transfer in case if it is queued
++						 * a transfer with size divisible to EPs max
++						 * packet size and with usb_request zero field
++						 * is set, which means that after data is transfered,
++						 * it is also should be transfered
++						 * a 0 length packet at the end. For Slave and
++						 * Buffer DMA modes in this case SW has
++						 * to initiate 2 transfers one with transfer size,
++						 * and the second with 0 size. For Descriptor
++						 * DMA mode SW is able to initiate a transfer,
++						 * which will handle all the packets including
++						 * the last  0 length.
++						 */
++						ep->dwc_ep.sent_zlp = 0;
++						dwc_otg_ep_start_zl_transfer
++						    (core_if, &ep->dwc_ep);
++					} else {
++						is_last = 1;
++					}
++				} else {
++					if (ep->dwc_ep.type ==
++					    DWC_OTG_EP_TYPE_ISOC) {
++						req->actual = 0;
++						dwc_otg_request_done(ep, req, 0);
++
++						ep->dwc_ep.start_xfer_buff = 0;
++						ep->dwc_ep.xfer_buff = 0;
++						ep->dwc_ep.xfer_len = 0;
++
++						/* If there is a request in the queue start it. */
++						start_next_request(ep);
++					} else
++						DWC_WARN
++						("Incomplete transfer (%d - %s [siz=%d pkt=%d])\n",
++						ep->dwc_ep.num,
++						(ep->dwc_ep.is_in ? "IN" : "OUT"),
++						deptsiz.b.xfersize,
++						deptsiz.b.pktcnt);
++				}
++			} else {
++				dma_desc = ep->dwc_ep.desc_addr;
++				byte_count = 0;
++				ep->dwc_ep.sent_zlp = 0;
++
++#ifdef DWC_UTE_CFI
++				CFI_INFO("%s: BUFFER_MODE=%d\n", __func__,
++					 ep->dwc_ep.buff_mode);
++				if (ep->dwc_ep.buff_mode != BM_STANDARD) {
++					int residue;
++
++					residue = cfi_calc_desc_residue(ep);
++					if (residue < 0)
++						return;
++
++					byte_count = residue;
++				} else {
++#endif
++					for (i = 0; i < ep->dwc_ep.desc_cnt;
++					     ++i) {
++					desc_sts = dma_desc->status;
++					byte_count += desc_sts.b.bytes;
++					dma_desc++;
++				}
++#ifdef DWC_UTE_CFI
++				}
++#endif
++				if (byte_count == 0) {
++					ep->dwc_ep.xfer_count =
++					    ep->dwc_ep.total_len;
++					is_last = 1;
++				} else {
++					DWC_WARN("Incomplete transfer\n");
++				}
++			}
++		} else {
++			if (deptsiz.b.xfersize == 0 && deptsiz.b.pktcnt == 0) {
++				DWC_DEBUGPL(DBG_PCDV,
++					    "%d-%s len=%d  xfersize=%d pktcnt=%d\n",
++					    ep->dwc_ep.num,
++					    ep->dwc_ep.is_in ? "IN" : "OUT",
++					    ep->dwc_ep.xfer_len,
++					    deptsiz.b.xfersize,
++					    deptsiz.b.pktcnt);
++
++				/*      Check if the whole transfer was completed,
++				 *      if no, setup transfer for next portion of data
++				 */
++				if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) {
++					dwc_otg_ep_start_transfer(core_if,
++								  &ep->dwc_ep);
++				} else if (ep->dwc_ep.sent_zlp) {
++					/*
++					 * This fragment of code should initiate 0
++					 * length trasfer in case if it is queued
++					 * a trasfer with size divisible to EPs max
++					 * packet size and with usb_request zero field
++					 * is set, which means that after data is transfered,
++					 * it is also should be transfered
++					 * a 0 length packet at the end. For Slave and
++					 * Buffer DMA modes in this case SW has
++					 * to initiate 2 transfers one with transfer size,
++					 * and the second with 0 size. For Desriptor
++					 * DMA mode SW is able to initiate a transfer,
++					 * which will handle all the packets including
++					 * the last  0 legth.
++					 */
++					ep->dwc_ep.sent_zlp = 0;
++					dwc_otg_ep_start_zl_transfer(core_if,
++								     &ep->dwc_ep);
++				} else {
++					is_last = 1;
++				}
++			} else {
++				DWC_WARN
++				    ("Incomplete transfer (%d-%s [siz=%d pkt=%d])\n",
++				     ep->dwc_ep.num,
++				     (ep->dwc_ep.is_in ? "IN" : "OUT"),
++				     deptsiz.b.xfersize, deptsiz.b.pktcnt);
++			}
++		}
++	} else {
++		dwc_otg_dev_out_ep_regs_t *out_ep_regs =
++		    dev_if->out_ep_regs[ep->dwc_ep.num];
++		desc_sts.d32 = 0;
++		if (core_if->dma_enable) {
++			if (core_if->dma_desc_enable) {
++				dma_desc = ep->dwc_ep.desc_addr;
++				byte_count = 0;
++				ep->dwc_ep.sent_zlp = 0;
++
++#ifdef DWC_UTE_CFI
++				CFI_INFO("%s: BUFFER_MODE=%d\n", __func__,
++					 ep->dwc_ep.buff_mode);
++				if (ep->dwc_ep.buff_mode != BM_STANDARD) {
++					int residue;
++					residue = cfi_calc_desc_residue(ep);
++					if (residue < 0)
++						return;
++					byte_count = residue;
++				} else {
++#endif
++
++					for (i = 0; i < ep->dwc_ep.desc_cnt;
++					     ++i) {
++						desc_sts = dma_desc->status;
++						byte_count += desc_sts.b.bytes;
++						dma_desc++;
++					}
++
++#ifdef DWC_UTE_CFI
++				}
++#endif
++				/* Checking for interrupt Out transfers with not
++				 * dword aligned mps sizes
++				 */
++				if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_INTR &&
++							(ep->dwc_ep.maxpacket%4)) {
++					ep->dwc_ep.xfer_count =
++					    ep->dwc_ep.total_len - byte_count;
++					if ((ep->dwc_ep.xfer_len %
++					     ep->dwc_ep.maxpacket)
++					    && (ep->dwc_ep.xfer_len /
++						ep->dwc_ep.maxpacket <
++						MAX_DMA_DESC_CNT))
++						ep->dwc_ep.xfer_len -=
++						    (ep->dwc_ep.desc_cnt -
++						     1) * ep->dwc_ep.maxpacket +
++						    ep->dwc_ep.xfer_len %
++						    ep->dwc_ep.maxpacket;
++					else
++						ep->dwc_ep.xfer_len -=
++						    ep->dwc_ep.desc_cnt *
++						    ep->dwc_ep.maxpacket;
++					if (ep->dwc_ep.xfer_len > 0) {
++						dwc_otg_ep_start_transfer
++						    (core_if, &ep->dwc_ep);
++					} else {
++						is_last = 1;
++					}
++				} else {
++					ep->dwc_ep.xfer_count =
++					    ep->dwc_ep.total_len - byte_count +
++					    ((4 -
++					      (ep->dwc_ep.
++					       total_len & 0x3)) & 0x3);
++					is_last = 1;
++				}
++			} else {
++				deptsiz.d32 = 0;
++				deptsiz.d32 =
++				    DWC_READ_REG32(&out_ep_regs->doeptsiz);
++
++				byte_count = (ep->dwc_ep.xfer_len -
++					      ep->dwc_ep.xfer_count -
++					      deptsiz.b.xfersize);
++				ep->dwc_ep.xfer_buff += byte_count;
++				ep->dwc_ep.dma_addr += byte_count;
++				ep->dwc_ep.xfer_count += byte_count;
++
++				/*      Check if the whole transfer was completed,
++				 *      if no, setup transfer for next portion of data
++				 */
++				if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) {
++					dwc_otg_ep_start_transfer(core_if,
++								  &ep->dwc_ep);
++				} else if (ep->dwc_ep.sent_zlp) {
++					/*
++					 * This fragment of code should initiate 0
++					 * length trasfer in case if it is queued
++					 * a trasfer with size divisible to EPs max
++					 * packet size and with usb_request zero field
++					 * is set, which means that after data is transfered,
++					 * it is also should be transfered
++					 * a 0 length packet at the end. For Slave and
++					 * Buffer DMA modes in this case SW has
++					 * to initiate 2 transfers one with transfer size,
++					 * and the second with 0 size. For Desriptor
++					 * DMA mode SW is able to initiate a transfer,
++					 * which will handle all the packets including
++					 * the last  0 legth.
++					 */
++					ep->dwc_ep.sent_zlp = 0;
++					dwc_otg_ep_start_zl_transfer(core_if,
++								     &ep->dwc_ep);
++				} else {
++					is_last = 1;
++				}
++			}
++		} else {
++			/*      Check if the whole transfer was completed,
++			 *      if no, setup transfer for next portion of data
++			 */
++			if (ep->dwc_ep.xfer_len < ep->dwc_ep.total_len) {
++				dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep);
++			} else if (ep->dwc_ep.sent_zlp) {
++				/*
++				 * This fragment of code should initiate 0
++				 * length transfer in case if it is queued
++				 * a transfer with size divisible to EPs max
++				 * packet size and with usb_request zero field
++				 * is set, which means that after data is transfered,
++				 * it is also should be transfered
++				 * a 0 length packet at the end. For Slave and
++				 * Buffer DMA modes in this case SW has
++				 * to initiate 2 transfers one with transfer size,
++				 * and the second with 0 size. For Descriptor
++				 * DMA mode SW is able to initiate a transfer,
++				 * which will handle all the packets including
++				 * the last  0 length.
++				 */
++				ep->dwc_ep.sent_zlp = 0;
++				dwc_otg_ep_start_zl_transfer(core_if,
++							     &ep->dwc_ep);
++			} else {
++				is_last = 1;
++			}
++		}
++
++		DWC_DEBUGPL(DBG_PCDV,
++			    "addr %p,	 %d-%s len=%d cnt=%d xsize=%d pktcnt=%d\n",
++			    &out_ep_regs->doeptsiz, ep->dwc_ep.num,
++			    ep->dwc_ep.is_in ? "IN" : "OUT",
++			    ep->dwc_ep.xfer_len, ep->dwc_ep.xfer_count,
++			    deptsiz.b.xfersize, deptsiz.b.pktcnt);
++	}
++
++	/* Complete the request */
++	if (is_last) {
++#ifdef DWC_UTE_CFI
++		if (ep->dwc_ep.buff_mode != BM_STANDARD) {
++			req->actual = ep->dwc_ep.cfi_req_len - byte_count;
++		} else {
++#endif
++			req->actual = ep->dwc_ep.xfer_count;
++#ifdef DWC_UTE_CFI
++		}
++#endif
++		if (req->dw_align_buf) {
++			if (!ep->dwc_ep.is_in) {
++				dwc_memcpy(req->buf, req->dw_align_buf, req->length);
++			}
++			DWC_DMA_FREE(dev, req->length, req->dw_align_buf,
++				     req->dw_align_buf_dma);
++		}
++
++		dwc_otg_request_done(ep, req, 0);
++
++		ep->dwc_ep.start_xfer_buff = 0;
++		ep->dwc_ep.xfer_buff = 0;
++		ep->dwc_ep.xfer_len = 0;
++
++		/* If there is a request in the queue start it. */
++		start_next_request(ep);
++	}
++}
++
++#ifdef DWC_EN_ISOC
++
++/**
++ * This function BNA interrupt for Isochronous EPs
++ *
++ */
++static void dwc_otg_pcd_handle_iso_bna(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_ep_t *dwc_ep = &ep->dwc_ep;
++	volatile uint32_t *addr;
++	depctl_data_t depctl = {.d32 = 0 };
++	dwc_otg_pcd_t *pcd = ep->pcd;
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	int i;
++
++	dma_desc =
++	    dwc_ep->iso_desc_addr + dwc_ep->desc_cnt * (dwc_ep->proc_buf_num);
++
++	if (dwc_ep->is_in) {
++		dev_dma_desc_sts_t sts = {.d32 = 0 };
++		for (i = 0; i < dwc_ep->desc_cnt; ++i, ++dma_desc) {
++			sts.d32 = dma_desc->status.d32;
++			sts.b_iso_in.bs = BS_HOST_READY;
++			dma_desc->status.d32 = sts.d32;
++		}
++	} else {
++		dev_dma_desc_sts_t sts = {.d32 = 0 };
++		for (i = 0; i < dwc_ep->desc_cnt; ++i, ++dma_desc) {
++			sts.d32 = dma_desc->status.d32;
++			sts.b_iso_out.bs = BS_HOST_READY;
++			dma_desc->status.d32 = sts.d32;
++		}
++	}
++
++	if (dwc_ep->is_in == 0) {
++		addr =
++		    &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep->
++							   num]->doepctl;
++	} else {
++		addr =
++		    &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl;
++	}
++	depctl.b.epena = 1;
++	DWC_MODIFY_REG32(addr, depctl.d32, depctl.d32);
++}
++
++/**
++ * This function sets latest iso packet information(non-PTI mode)
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++void set_current_pkt_info(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	dma_addr_t dma_addr;
++	uint32_t offset;
++
++	if (ep->proc_buf_num)
++		dma_addr = ep->dma_addr1;
++	else
++		dma_addr = ep->dma_addr0;
++
++	if (ep->is_in) {
++		deptsiz.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->
++				   in_ep_regs[ep->num]->dieptsiz);
++		offset = ep->data_per_frame;
++	} else {
++		deptsiz.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->
++				   out_ep_regs[ep->num]->doeptsiz);
++		offset =
++		    ep->data_per_frame +
++		    (0x4 & (0x4 - (ep->data_per_frame & 0x3)));
++	}
++
++	if (!deptsiz.b.xfersize) {
++		ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame;
++		ep->pkt_info[ep->cur_pkt].offset =
++		    ep->cur_pkt_dma_addr - dma_addr;
++		ep->pkt_info[ep->cur_pkt].status = 0;
++	} else {
++		ep->pkt_info[ep->cur_pkt].length = ep->data_per_frame;
++		ep->pkt_info[ep->cur_pkt].offset =
++		    ep->cur_pkt_dma_addr - dma_addr;
++		ep->pkt_info[ep->cur_pkt].status = -DWC_E_NO_DATA;
++	}
++	ep->cur_pkt_addr += offset;
++	ep->cur_pkt_dma_addr += offset;
++	ep->cur_pkt++;
++}
++
++/**
++ * This function sets latest iso packet information(DDMA mode)
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dwc_ep The EP to start the transfer on.
++ *
++ */
++static void set_ddma_iso_pkts_info(dwc_otg_core_if_t * core_if,
++				   dwc_ep_t * dwc_ep)
++{
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	dev_dma_desc_sts_t sts = {.d32 = 0 };
++	iso_pkt_info_t *iso_packet;
++	uint32_t data_per_desc;
++	uint32_t offset;
++	int i, j;
++
++	iso_packet = dwc_ep->pkt_info;
++
++	/** Reinit closed DMA Descriptors*/
++	/** ISO OUT EP */
++	if (dwc_ep->is_in == 0) {
++		dma_desc =
++		    dwc_ep->iso_desc_addr +
++		    dwc_ep->desc_cnt * dwc_ep->proc_buf_num;
++		offset = 0;
++
++		for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm;
++		     i += dwc_ep->pkt_per_frm) {
++			for (j = 0; j < dwc_ep->pkt_per_frm; ++j) {
++				data_per_desc =
++				    ((j + 1) * dwc_ep->maxpacket >
++				     dwc_ep->
++				     data_per_frame) ? dwc_ep->data_per_frame -
++				    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++				data_per_desc +=
++				    (data_per_desc % 4) ? (4 -
++							   data_per_desc %
++							   4) : 0;
++
++				sts.d32 = dma_desc->status.d32;
++
++				/* Write status in iso_packet_decsriptor  */
++				iso_packet->status =
++				    sts.b_iso_out.rxsts +
++				    (sts.b_iso_out.bs ^ BS_DMA_DONE);
++				if (iso_packet->status) {
++					iso_packet->status = -DWC_E_NO_DATA;
++				}
++
++				/* Received data length */
++				if (!sts.b_iso_out.rxbytes) {
++					iso_packet->length =
++					    data_per_desc -
++					    sts.b_iso_out.rxbytes;
++				} else {
++					iso_packet->length =
++					    data_per_desc -
++					    sts.b_iso_out.rxbytes + (4 -
++								     dwc_ep->data_per_frame
++								     % 4);
++				}
++
++				iso_packet->offset = offset;
++
++				offset += data_per_desc;
++				dma_desc++;
++				iso_packet++;
++			}
++		}
++
++		for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) {
++			data_per_desc =
++			    ((j + 1) * dwc_ep->maxpacket >
++			     dwc_ep->data_per_frame) ? dwc_ep->data_per_frame -
++			    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++			data_per_desc +=
++			    (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0;
++
++			sts.d32 = dma_desc->status.d32;
++
++			/* Write status in iso_packet_decsriptor  */
++			iso_packet->status =
++			    sts.b_iso_out.rxsts +
++			    (sts.b_iso_out.bs ^ BS_DMA_DONE);
++			if (iso_packet->status) {
++				iso_packet->status = -DWC_E_NO_DATA;
++			}
++
++			/* Received data length */
++			iso_packet->length =
++			    dwc_ep->data_per_frame - sts.b_iso_out.rxbytes;
++
++			iso_packet->offset = offset;
++
++			offset += data_per_desc;
++			iso_packet++;
++			dma_desc++;
++		}
++
++		sts.d32 = dma_desc->status.d32;
++
++		/* Write status in iso_packet_decsriptor  */
++		iso_packet->status =
++		    sts.b_iso_out.rxsts + (sts.b_iso_out.bs ^ BS_DMA_DONE);
++		if (iso_packet->status) {
++			iso_packet->status = -DWC_E_NO_DATA;
++		}
++		/* Received data length */
++		if (!sts.b_iso_out.rxbytes) {
++			iso_packet->length =
++			    dwc_ep->data_per_frame - sts.b_iso_out.rxbytes;
++		} else {
++			iso_packet->length =
++			    dwc_ep->data_per_frame - sts.b_iso_out.rxbytes +
++			    (4 - dwc_ep->data_per_frame % 4);
++		}
++
++		iso_packet->offset = offset;
++	} else {
++/** ISO IN EP */
++
++		dma_desc =
++		    dwc_ep->iso_desc_addr +
++		    dwc_ep->desc_cnt * dwc_ep->proc_buf_num;
++
++		for (i = 0; i < dwc_ep->desc_cnt - 1; i++) {
++			sts.d32 = dma_desc->status.d32;
++
++			/* Write status in iso packet descriptor */
++			iso_packet->status =
++			    sts.b_iso_in.txsts +
++			    (sts.b_iso_in.bs ^ BS_DMA_DONE);
++			if (iso_packet->status != 0) {
++				iso_packet->status = -DWC_E_NO_DATA;
++
++			}
++			/* Bytes has been transfered */
++			iso_packet->length =
++			    dwc_ep->data_per_frame - sts.b_iso_in.txbytes;
++
++			dma_desc++;
++			iso_packet++;
++		}
++
++		sts.d32 = dma_desc->status.d32;
++		while (sts.b_iso_in.bs == BS_DMA_BUSY) {
++			sts.d32 = dma_desc->status.d32;
++		}
++
++		/* Write status in iso packet descriptor ??? do be done with ERROR codes */
++		iso_packet->status =
++		    sts.b_iso_in.txsts + (sts.b_iso_in.bs ^ BS_DMA_DONE);
++		if (iso_packet->status != 0) {
++			iso_packet->status = -DWC_E_NO_DATA;
++		}
++
++		/* Bytes has been transfered */
++		iso_packet->length =
++		    dwc_ep->data_per_frame - sts.b_iso_in.txbytes;
++	}
++}
++
++/**
++ * This function reinitialize DMA Descriptors for Isochronous transfer
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dwc_ep The EP to start the transfer on.
++ *
++ */
++static void reinit_ddma_iso_xfer(dwc_otg_core_if_t * core_if, dwc_ep_t * dwc_ep)
++{
++	int i, j;
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	dma_addr_t dma_ad;
++	volatile uint32_t *addr;
++	dev_dma_desc_sts_t sts = {.d32 = 0 };
++	uint32_t data_per_desc;
++
++	if (dwc_ep->is_in == 0) {
++		addr = &core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl;
++	} else {
++		addr = &core_if->dev_if->in_ep_regs[dwc_ep->num]->diepctl;
++	}
++
++	if (dwc_ep->proc_buf_num == 0) {
++		/** Buffer 0 descriptors setup */
++		dma_ad = dwc_ep->dma_addr0;
++	} else {
++		/** Buffer 1 descriptors setup */
++		dma_ad = dwc_ep->dma_addr1;
++	}
++
++	/** Reinit closed DMA Descriptors*/
++	/** ISO OUT EP */
++	if (dwc_ep->is_in == 0) {
++		dma_desc =
++		    dwc_ep->iso_desc_addr +
++		    dwc_ep->desc_cnt * dwc_ep->proc_buf_num;
++
++		sts.b_iso_out.bs = BS_HOST_READY;
++		sts.b_iso_out.rxsts = 0;
++		sts.b_iso_out.l = 0;
++		sts.b_iso_out.sp = 0;
++		sts.b_iso_out.ioc = 0;
++		sts.b_iso_out.pid = 0;
++		sts.b_iso_out.framenum = 0;
++
++		for (i = 0; i < dwc_ep->desc_cnt - dwc_ep->pkt_per_frm;
++		     i += dwc_ep->pkt_per_frm) {
++			for (j = 0; j < dwc_ep->pkt_per_frm; ++j) {
++				data_per_desc =
++				    ((j + 1) * dwc_ep->maxpacket >
++				     dwc_ep->
++				     data_per_frame) ? dwc_ep->data_per_frame -
++				    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++				data_per_desc +=
++				    (data_per_desc % 4) ? (4 -
++							   data_per_desc %
++							   4) : 0;
++				sts.b_iso_out.rxbytes = data_per_desc;
++				dma_desc->buf = dma_ad;
++				dma_desc->status.d32 = sts.d32;
++
++				dma_ad += data_per_desc;
++				dma_desc++;
++			}
++		}
++
++		for (j = 0; j < dwc_ep->pkt_per_frm - 1; ++j) {
++
++			data_per_desc =
++			    ((j + 1) * dwc_ep->maxpacket >
++			     dwc_ep->data_per_frame) ? dwc_ep->data_per_frame -
++			    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++			data_per_desc +=
++			    (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0;
++			sts.b_iso_out.rxbytes = data_per_desc;
++
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++
++			dma_desc++;
++			dma_ad += data_per_desc;
++		}
++
++		sts.b_iso_out.ioc = 1;
++		sts.b_iso_out.l = dwc_ep->proc_buf_num;
++
++		data_per_desc =
++		    ((j + 1) * dwc_ep->maxpacket >
++		     dwc_ep->data_per_frame) ? dwc_ep->data_per_frame -
++		    j * dwc_ep->maxpacket : dwc_ep->maxpacket;
++		data_per_desc +=
++		    (data_per_desc % 4) ? (4 - data_per_desc % 4) : 0;
++		sts.b_iso_out.rxbytes = data_per_desc;
++
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++	} else {
++/** ISO IN EP */
++
++		dma_desc =
++		    dwc_ep->iso_desc_addr +
++		    dwc_ep->desc_cnt * dwc_ep->proc_buf_num;
++
++		sts.b_iso_in.bs = BS_HOST_READY;
++		sts.b_iso_in.txsts = 0;
++		sts.b_iso_in.sp = 0;
++		sts.b_iso_in.ioc = 0;
++		sts.b_iso_in.pid = dwc_ep->pkt_per_frm;
++		sts.b_iso_in.framenum = dwc_ep->next_frame;
++		sts.b_iso_in.txbytes = dwc_ep->data_per_frame;
++		sts.b_iso_in.l = 0;
++
++		for (i = 0; i < dwc_ep->desc_cnt - 1; i++) {
++			dma_desc->buf = dma_ad;
++			dma_desc->status.d32 = sts.d32;
++
++			sts.b_iso_in.framenum += dwc_ep->bInterval;
++			dma_ad += dwc_ep->data_per_frame;
++			dma_desc++;
++		}
++
++		sts.b_iso_in.ioc = 1;
++		sts.b_iso_in.l = dwc_ep->proc_buf_num;
++
++		dma_desc->buf = dma_ad;
++		dma_desc->status.d32 = sts.d32;
++
++		dwc_ep->next_frame =
++		    sts.b_iso_in.framenum + dwc_ep->bInterval * 1;
++	}
++	dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1;
++}
++
++/**
++ * This function is to handle Iso EP transfer complete interrupt
++ * in case Iso out packet was dropped
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param dwc_ep The EP for wihich transfer complete was asserted
++ *
++ */
++static uint32_t handle_iso_out_pkt_dropped(dwc_otg_core_if_t * core_if,
++					   dwc_ep_t * dwc_ep)
++{
++	uint32_t dma_addr;
++	uint32_t drp_pkt;
++	uint32_t drp_pkt_cnt;
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	int i;
++
++	deptsiz.d32 =
++	    DWC_READ_REG32(&core_if->dev_if->
++			   out_ep_regs[dwc_ep->num]->doeptsiz);
++
++	drp_pkt = dwc_ep->pkt_cnt - deptsiz.b.pktcnt;
++	drp_pkt_cnt = dwc_ep->pkt_per_frm - (drp_pkt % dwc_ep->pkt_per_frm);
++
++	/* Setting dropped packets status */
++	for (i = 0; i < drp_pkt_cnt; ++i) {
++		dwc_ep->pkt_info[drp_pkt].status = -DWC_E_NO_DATA;
++		drp_pkt++;
++		deptsiz.b.pktcnt--;
++	}
++
++	if (deptsiz.b.pktcnt > 0) {
++		deptsiz.b.xfersize =
++		    dwc_ep->xfer_len - (dwc_ep->pkt_cnt -
++					deptsiz.b.pktcnt) * dwc_ep->maxpacket;
++	} else {
++		deptsiz.b.xfersize = 0;
++		deptsiz.b.pktcnt = 0;
++	}
++
++	DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz,
++			deptsiz.d32);
++
++	if (deptsiz.b.pktcnt > 0) {
++		if (dwc_ep->proc_buf_num) {
++			dma_addr =
++			    dwc_ep->dma_addr1 + dwc_ep->xfer_len -
++			    deptsiz.b.xfersize;
++		} else {
++			dma_addr =
++			    dwc_ep->dma_addr0 + dwc_ep->xfer_len -
++			    deptsiz.b.xfersize;;
++		}
++
++		DWC_WRITE_REG32(&core_if->dev_if->
++				out_ep_regs[dwc_ep->num]->doepdma, dma_addr);
++
++		/** Re-enable endpoint, clear nak  */
++		depctl.d32 = 0;
++		depctl.b.epena = 1;
++		depctl.b.cnak = 1;
++
++		DWC_MODIFY_REG32(&core_if->dev_if->
++				 out_ep_regs[dwc_ep->num]->doepctl, depctl.d32,
++				 depctl.d32);
++		return 0;
++	} else {
++		return 1;
++	}
++}
++
++/**
++ * This function sets iso packets information(PTI mode)
++ *
++ * @param core_if Programming view of DWC_otg controller.
++ * @param ep The EP to start the transfer on.
++ *
++ */
++static uint32_t set_iso_pkts_info(dwc_otg_core_if_t * core_if, dwc_ep_t * ep)
++{
++	int i, j;
++	dma_addr_t dma_ad;
++	iso_pkt_info_t *packet_info = ep->pkt_info;
++	uint32_t offset;
++	uint32_t frame_data;
++	deptsiz_data_t deptsiz;
++
++	if (ep->proc_buf_num == 0) {
++		/** Buffer 0 descriptors setup */
++		dma_ad = ep->dma_addr0;
++	} else {
++		/** Buffer 1 descriptors setup */
++		dma_ad = ep->dma_addr1;
++	}
++
++	if (ep->is_in) {
++		deptsiz.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->in_ep_regs[ep->num]->
++				   dieptsiz);
++	} else {
++		deptsiz.d32 =
++		    DWC_READ_REG32(&core_if->dev_if->out_ep_regs[ep->num]->
++				   doeptsiz);
++	}
++
++	if (!deptsiz.b.xfersize) {
++		offset = 0;
++		for (i = 0; i < ep->pkt_cnt; i += ep->pkt_per_frm) {
++			frame_data = ep->data_per_frame;
++			for (j = 0; j < ep->pkt_per_frm; ++j) {
++
++				/* Packet status - is not set as initially
++				 * it is set to 0 and if packet was sent
++				 successfully, status field will remain 0*/
++
++				/* Bytes has been transfered */
++				packet_info->length =
++				    (ep->maxpacket <
++				     frame_data) ? ep->maxpacket : frame_data;
++
++				/* Received packet offset */
++				packet_info->offset = offset;
++				offset += packet_info->length;
++				frame_data -= packet_info->length;
++
++				packet_info++;
++			}
++		}
++		return 1;
++	} else {
++		/* This is a workaround for in case of Transfer Complete with
++		 * PktDrpSts interrupts merging - in this case Transfer complete
++		 * interrupt for Isoc Out Endpoint is asserted without PktDrpSts
++		 * set and with DOEPTSIZ register non zero. Investigations showed,
++		 * that this happens when Out packet is dropped, but because of
++		 * interrupts merging during first interrupt handling PktDrpSts
++		 * bit is cleared and for next merged interrupts it is not reset.
++		 * In this case SW hadles the interrupt as if PktDrpSts bit is set.
++		 */
++		if (ep->is_in) {
++			return 1;
++		} else {
++			return handle_iso_out_pkt_dropped(core_if, ep);
++		}
++	}
++}
++
++/**
++ * This function is to handle Iso EP transfer complete interrupt
++ *
++ * @param pcd The PCD
++ * @param ep The EP for which transfer complete was asserted
++ *
++ */
++static void complete_iso_ep(dwc_otg_pcd_t * pcd, dwc_otg_pcd_ep_t * ep)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(ep->pcd);
++	dwc_ep_t *dwc_ep = &ep->dwc_ep;
++	uint8_t is_last = 0;
++
++	if (ep->dwc_ep.next_frame == 0xffffffff) {
++		DWC_WARN("Next frame is not set!\n");
++		return;
++	}
++
++	if (core_if->dma_enable) {
++		if (core_if->dma_desc_enable) {
++			set_ddma_iso_pkts_info(core_if, dwc_ep);
++			reinit_ddma_iso_xfer(core_if, dwc_ep);
++			is_last = 1;
++		} else {
++			if (core_if->pti_enh_enable) {
++				if (set_iso_pkts_info(core_if, dwc_ep)) {
++					dwc_ep->proc_buf_num =
++					    (dwc_ep->proc_buf_num ^ 1) & 0x1;
++					dwc_otg_iso_ep_start_buf_transfer
++					    (core_if, dwc_ep);
++					is_last = 1;
++				}
++			} else {
++				set_current_pkt_info(core_if, dwc_ep);
++				if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) {
++					is_last = 1;
++					dwc_ep->cur_pkt = 0;
++					dwc_ep->proc_buf_num =
++					    (dwc_ep->proc_buf_num ^ 1) & 0x1;
++					if (dwc_ep->proc_buf_num) {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff1;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr1;
++					} else {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff0;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr0;
++					}
++
++				}
++				dwc_otg_iso_ep_start_frm_transfer(core_if,
++								  dwc_ep);
++			}
++		}
++	} else {
++		set_current_pkt_info(core_if, dwc_ep);
++		if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) {
++			is_last = 1;
++			dwc_ep->cur_pkt = 0;
++			dwc_ep->proc_buf_num = (dwc_ep->proc_buf_num ^ 1) & 0x1;
++			if (dwc_ep->proc_buf_num) {
++				dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff1;
++				dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr1;
++			} else {
++				dwc_ep->cur_pkt_addr = dwc_ep->xfer_buff0;
++				dwc_ep->cur_pkt_dma_addr = dwc_ep->dma_addr0;
++			}
++
++		}
++		dwc_otg_iso_ep_start_frm_transfer(core_if, dwc_ep);
++	}
++	if (is_last)
++		dwc_otg_iso_buffer_done(pcd, ep, ep->iso_req_handle);
++}
++#endif /* DWC_EN_ISOC */
++
++/**
++ * This function handle BNA interrupt for Non Isochronous EPs
++ *
++ */
++static void dwc_otg_pcd_handle_noniso_bna(dwc_otg_pcd_ep_t * ep)
++{
++	dwc_ep_t *dwc_ep = &ep->dwc_ep;
++	volatile uint32_t *addr;
++	depctl_data_t depctl = {.d32 = 0 };
++	dwc_otg_pcd_t *pcd = ep->pcd;
++	dwc_otg_dev_dma_desc_t *dma_desc;
++	dev_dma_desc_sts_t sts = {.d32 = 0 };
++	dwc_otg_core_if_t *core_if = ep->pcd->core_if;
++	int i, start;
++
++	if (!dwc_ep->desc_cnt)
++		DWC_WARN("Ep%d %s Descriptor count = %d \n", dwc_ep->num,
++			 (dwc_ep->is_in ? "IN" : "OUT"), dwc_ep->desc_cnt);
++
++	if (core_if->core_params->cont_on_bna && !dwc_ep->is_in
++							&& dwc_ep->type != DWC_OTG_EP_TYPE_CONTROL) {
++		uint32_t doepdma;
++		dwc_otg_dev_out_ep_regs_t *out_regs =
++			core_if->dev_if->out_ep_regs[dwc_ep->num];
++		doepdma = DWC_READ_REG32(&(out_regs->doepdma));
++		start = (doepdma - dwc_ep->dma_desc_addr)/sizeof(dwc_otg_dev_dma_desc_t);
++		dma_desc = &(dwc_ep->desc_addr[start]);
++	} else {
++		start = 0;
++		dma_desc = dwc_ep->desc_addr;
++	}
++
++
++	for (i = start; i < dwc_ep->desc_cnt; ++i, ++dma_desc) {
++		sts.d32 = dma_desc->status.d32;
++		sts.b.bs = BS_HOST_READY;
++		dma_desc->status.d32 = sts.d32;
++	}
++
++	if (dwc_ep->is_in == 0) {
++		addr =
++		    &GET_CORE_IF(pcd)->dev_if->out_ep_regs[dwc_ep->num]->
++		    doepctl;
++	} else {
++		addr =
++		    &GET_CORE_IF(pcd)->dev_if->in_ep_regs[dwc_ep->num]->diepctl;
++	}
++	depctl.b.epena = 1;
++	depctl.b.cnak = 1;
++	DWC_MODIFY_REG32(addr, 0, depctl.d32);
++}
++
++/**
++ * This function handles EP0 Control transfers.
++ *
++ * The state of the control transfers are tracked in
++ * <code>ep0state</code>.
++ */
++static void handle_ep0(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_pcd_ep_t *ep0 = &pcd->ep0;
++	dev_dma_desc_sts_t desc_sts;
++	deptsiz0_data_t deptsiz;
++	uint32_t byte_count;
++
++#ifdef DEBUG_EP0
++	DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__);
++	print_ep0_state(pcd);
++#endif
++
++//      DWC_PRINTF("HANDLE EP0\n");
++
++	switch (pcd->ep0state) {
++	case EP0_DISCONNECT:
++		break;
++
++	case EP0_IDLE:
++		pcd->request_config = 0;
++
++		pcd_setup(pcd);
++		break;
++
++	case EP0_IN_DATA_PHASE:
++#ifdef DEBUG_EP0
++		DWC_DEBUGPL(DBG_PCD, "DATA_IN EP%d-%s: type=%d, mps=%d\n",
++			    ep0->dwc_ep.num, (ep0->dwc_ep.is_in ? "IN" : "OUT"),
++			    ep0->dwc_ep.type, ep0->dwc_ep.maxpacket);
++#endif
++
++		if (core_if->dma_enable != 0) {
++			/*
++			 * For EP0 we can only program 1 packet at a time so we
++			 * need to do the make calculations after each complete.
++			 * Call write_packet to make the calculations, as in
++			 * slave mode, and use those values to determine if we
++			 * can complete.
++			 */
++			if (core_if->dma_desc_enable == 0) {
++				deptsiz.d32 =
++				    DWC_READ_REG32(&core_if->
++						   dev_if->in_ep_regs[0]->
++						   dieptsiz);
++				byte_count =
++				    ep0->dwc_ep.xfer_len - deptsiz.b.xfersize;
++			} else {
++				desc_sts =
++				    core_if->dev_if->in_desc_addr->status;
++				byte_count =
++				    ep0->dwc_ep.xfer_len - desc_sts.b.bytes;
++			}
++			ep0->dwc_ep.xfer_count += byte_count;
++			ep0->dwc_ep.xfer_buff += byte_count;
++			ep0->dwc_ep.dma_addr += byte_count;
++		}
++		if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) {
++			dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd),
++						      &ep0->dwc_ep);
++			DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n");
++		} else if (ep0->dwc_ep.sent_zlp) {
++			dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd),
++						      &ep0->dwc_ep);
++			ep0->dwc_ep.sent_zlp = 0;
++			DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER sent zlp\n");
++		} else {
++			ep0_complete_request(ep0);
++			DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n");
++		}
++		break;
++	case EP0_OUT_DATA_PHASE:
++#ifdef DEBUG_EP0
++		DWC_DEBUGPL(DBG_PCD, "DATA_OUT EP%d-%s: type=%d, mps=%d\n",
++			    ep0->dwc_ep.num, (ep0->dwc_ep.is_in ? "IN" : "OUT"),
++			    ep0->dwc_ep.type, ep0->dwc_ep.maxpacket);
++#endif
++		if (core_if->dma_enable != 0) {
++			if (core_if->dma_desc_enable == 0) {
++				deptsiz.d32 =
++				    DWC_READ_REG32(&core_if->
++						   dev_if->out_ep_regs[0]->
++						   doeptsiz);
++				byte_count =
++				    ep0->dwc_ep.maxpacket - deptsiz.b.xfersize;
++			} else {
++				desc_sts =
++				    core_if->dev_if->out_desc_addr->status;
++				byte_count =
++				    ep0->dwc_ep.maxpacket - desc_sts.b.bytes;
++			}
++			ep0->dwc_ep.xfer_count += byte_count;
++			ep0->dwc_ep.xfer_buff += byte_count;
++			ep0->dwc_ep.dma_addr += byte_count;
++		}
++		if (ep0->dwc_ep.xfer_count < ep0->dwc_ep.total_len) {
++			dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd),
++						      &ep0->dwc_ep);
++			DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER\n");
++		} else if (ep0->dwc_ep.sent_zlp) {
++			dwc_otg_ep0_continue_transfer(GET_CORE_IF(pcd),
++						      &ep0->dwc_ep);
++			ep0->dwc_ep.sent_zlp = 0;
++			DWC_DEBUGPL(DBG_PCD, "CONTINUE TRANSFER sent zlp\n");
++		} else {
++			ep0_complete_request(ep0);
++			DWC_DEBUGPL(DBG_PCD, "COMPLETE TRANSFER\n");
++		}
++		break;
++
++	case EP0_IN_STATUS_PHASE:
++	case EP0_OUT_STATUS_PHASE:
++		DWC_DEBUGPL(DBG_PCD, "CASE: EP0_STATUS\n");
++		ep0_complete_request(ep0);
++		pcd->ep0state = EP0_IDLE;
++		ep0->stopped = 1;
++		ep0->dwc_ep.is_in = 0;	/* OUT for next SETUP */
++
++		/* Prepare for more SETUP Packets */
++		if (core_if->dma_enable) {
++			ep0_out_start(core_if, pcd);
++		}
++		break;
++
++	case EP0_STALL:
++		DWC_ERROR("EP0 STALLed, should not get here pcd_setup()\n");
++		break;
++	}
++#ifdef DEBUG_EP0
++	print_ep0_state(pcd);
++#endif
++}
++
++/**
++ * Restart transfer
++ */
++static void restart_transfer(dwc_otg_pcd_t * pcd, const uint32_t epnum)
++{
++	dwc_otg_core_if_t *core_if;
++	dwc_otg_dev_if_t *dev_if;
++	deptsiz_data_t dieptsiz = {.d32 = 0 };
++	dwc_otg_pcd_ep_t *ep;
++
++	ep = get_in_ep(pcd, epnum);
++
++#ifdef DWC_EN_ISOC
++	if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++		return;
++	}
++#endif /* DWC_EN_ISOC  */
++
++	core_if = GET_CORE_IF(pcd);
++	dev_if = core_if->dev_if;
++
++	dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dieptsiz);
++
++	DWC_DEBUGPL(DBG_PCD, "xfer_buff=%p xfer_count=%0x xfer_len=%0x"
++		    " stopped=%d\n", ep->dwc_ep.xfer_buff,
++		    ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len, ep->stopped);
++	/*
++	 * If xfersize is 0 and pktcnt in not 0, resend the last packet.
++	 */
++	if (dieptsiz.b.pktcnt && dieptsiz.b.xfersize == 0 &&
++	    ep->dwc_ep.start_xfer_buff != 0) {
++		if (ep->dwc_ep.total_len <= ep->dwc_ep.maxpacket) {
++			ep->dwc_ep.xfer_count = 0;
++			ep->dwc_ep.xfer_buff = ep->dwc_ep.start_xfer_buff;
++			ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count;
++		} else {
++			ep->dwc_ep.xfer_count -= ep->dwc_ep.maxpacket;
++			/* convert packet size to dwords. */
++			ep->dwc_ep.xfer_buff -= ep->dwc_ep.maxpacket;
++			ep->dwc_ep.xfer_len = ep->dwc_ep.xfer_count;
++		}
++		ep->stopped = 0;
++		DWC_DEBUGPL(DBG_PCD, "xfer_buff=%p xfer_count=%0x "
++			    "xfer_len=%0x stopped=%d\n",
++			    ep->dwc_ep.xfer_buff,
++			    ep->dwc_ep.xfer_count, ep->dwc_ep.xfer_len,
++			    ep->stopped);
++		if (epnum == 0) {
++			dwc_otg_ep0_start_transfer(core_if, &ep->dwc_ep);
++		} else {
++			dwc_otg_ep_start_transfer(core_if, &ep->dwc_ep);
++		}
++	}
++}
++
++/*
++ * This function create new nextep sequnce based on Learn Queue.
++ *
++ * @param core_if Programming view of DWC_otg controller
++ */
++void predict_nextep_seq( dwc_otg_core_if_t * core_if)
++{
++	dwc_otg_device_global_regs_t *dev_global_regs =
++	    core_if->dev_if->dev_global_regs;
++	const uint32_t TOKEN_Q_DEPTH = core_if->hwcfg2.b.dev_token_q_depth;
++	/* Number of Token Queue Registers */
++	const int DTKNQ_REG_CNT = (TOKEN_Q_DEPTH + 7) / 8;
++	dtknq1_data_t dtknqr1;
++	uint32_t in_tkn_epnums[4];
++	uint8_t seqnum[MAX_EPS_CHANNELS];
++	uint8_t intkn_seq[TOKEN_Q_DEPTH];
++	grstctl_t resetctl = {.d32 = 0 };
++	uint8_t temp;
++	int ndx = 0;
++	int start = 0;
++	int end = 0;
++	int sort_done = 0;
++	int i = 0;
++	volatile uint32_t *addr = &dev_global_regs->dtknqr1;
++
++
++	DWC_DEBUGPL(DBG_PCD,"dev_token_q_depth=%d\n",TOKEN_Q_DEPTH);
++
++	/* Read the DTKNQ Registers */
++	for (i = 0; i < DTKNQ_REG_CNT; i++) {
++		in_tkn_epnums[i] = DWC_READ_REG32(addr);
++		DWC_DEBUGPL(DBG_PCDV, "DTKNQR%d=0x%08x\n", i + 1,
++			    in_tkn_epnums[i]);
++		if (addr == &dev_global_regs->dvbusdis) {
++			addr = &dev_global_regs->dtknqr3_dthrctl;
++		} else {
++			++addr;
++		}
++
++	}
++
++	/* Copy the DTKNQR1 data to the bit field. */
++	dtknqr1.d32 = in_tkn_epnums[0];
++	if (dtknqr1.b.wrap_bit) {
++		ndx = dtknqr1.b.intknwptr;
++		end = ndx -1;
++		if (end < 0)
++			end = TOKEN_Q_DEPTH -1;
++	} else {
++		ndx = 0;
++		end = dtknqr1.b.intknwptr -1;
++		if (end < 0)
++			end = 0;
++	}
++	start = ndx;
++
++	/* Fill seqnum[] by initial values: EP number + 31 */
++	for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++		seqnum[i] = i +31;
++	}
++
++	/* Fill intkn_seq[] from in_tkn_epnums[0] */
++	for (i=0; i < 6; i++)
++		intkn_seq[i] = (in_tkn_epnums[0] >> ((7-i) * 4)) & 0xf;
++
++	if (TOKEN_Q_DEPTH > 6) {
++		/* Fill intkn_seq[] from in_tkn_epnums[1] */
++		for (i=6; i < 14; i++)
++			intkn_seq[i] =
++			    (in_tkn_epnums[1] >> ((7 - (i - 6)) * 4)) & 0xf;
++	}
++
++	if (TOKEN_Q_DEPTH > 14) {
++		/* Fill intkn_seq[] from in_tkn_epnums[1] */
++		for (i=14; i < 22; i++)
++			intkn_seq[i] =
++			    (in_tkn_epnums[2] >> ((7 - (i - 14)) * 4)) & 0xf;
++	}
++
++	if (TOKEN_Q_DEPTH > 22) {
++		/* Fill intkn_seq[] from in_tkn_epnums[1] */
++		for (i=22; i < 30; i++)
++			intkn_seq[i] =
++			    (in_tkn_epnums[3] >> ((7 - (i - 22)) * 4)) & 0xf;
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "%s start=%d end=%d intkn_seq[]:\n", __func__,
++		    start, end);
++	for (i=0; i<TOKEN_Q_DEPTH; i++)
++		DWC_DEBUGPL(DBG_PCDV,"%d\n", intkn_seq[i]);
++
++	/* Update seqnum based on intkn_seq[] */
++	i = 0;
++	do {
++		seqnum[intkn_seq[ndx]] = i;
++		ndx++;
++		i++;
++		if (ndx == TOKEN_Q_DEPTH)
++			ndx = 0;
++	} while ( i < TOKEN_Q_DEPTH );
++
++	/* Mark non active EP's in seqnum[] by 0xff */
++	for (i=0; i<=core_if->dev_if->num_in_eps; i++) {
++		if (core_if->nextep_seq[i] == 0xff )
++			seqnum[i] = 0xff;
++	}
++
++	/* Sort seqnum[] */
++	sort_done = 0;
++	while (!sort_done) {
++		sort_done = 1;
++		for (i=0; i<core_if->dev_if->num_in_eps; i++) {
++			if (seqnum[i] > seqnum[i+1]) {
++				temp = seqnum[i];
++				seqnum[i] = seqnum[i+1];
++				seqnum[i+1] = temp;
++				sort_done = 0;
++			}
++		}
++	}
++
++	ndx = start + seqnum[0];
++	if (ndx >= TOKEN_Q_DEPTH)
++		ndx = ndx % TOKEN_Q_DEPTH;
++	core_if->first_in_nextep_seq = intkn_seq[ndx];
++
++	/* Update seqnum[] by EP numbers  */
++	for (i=0; i<=core_if->dev_if->num_in_eps; i++) {
++		ndx = start + i;
++		if (seqnum[i] < 31) {
++			ndx = start + seqnum[i];
++			if (ndx >= TOKEN_Q_DEPTH)
++				ndx = ndx % TOKEN_Q_DEPTH;
++			seqnum[i] = intkn_seq[ndx];
++		} else {
++			if (seqnum[i] < 0xff) {
++				seqnum[i] = seqnum[i] - 31;
++			} else {
++				break;
++			}
++		}
++	}
++
++	/* Update nextep_seq[] based on seqnum[] */
++	for (i=0; i<core_if->dev_if->num_in_eps; i++) {
++		if (seqnum[i] != 0xff) {
++			if (seqnum[i+1] != 0xff) {
++				core_if->nextep_seq[seqnum[i]] = seqnum[i+1];
++			} else {
++				core_if->nextep_seq[seqnum[i]] = core_if->first_in_nextep_seq;
++				break;
++			}
++		} else {
++			break;
++		}
++	}
++
++	DWC_DEBUGPL(DBG_PCDV, "%s first_in_nextep_seq= %2d; nextep_seq[]:\n",
++		__func__, core_if->first_in_nextep_seq);
++	for (i=0; i <= core_if->dev_if->num_in_eps; i++) {
++		DWC_DEBUGPL(DBG_PCDV,"%2d\n", core_if->nextep_seq[i]);
++	}
++
++	/* Flush the Learning Queue */
++	resetctl.d32 = DWC_READ_REG32(&core_if->core_global_regs->grstctl);
++	resetctl.b.intknqflsh = 1;
++	DWC_WRITE_REG32(&core_if->core_global_regs->grstctl, resetctl.d32);
++
++
++}
++
++/**
++ * handle the IN EP disable interrupt.
++ */
++static inline void handle_in_ep_disable_intr(dwc_otg_pcd_t * pcd,
++					     const uint32_t epnum)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	deptsiz_data_t dieptsiz = {.d32 = 0 };
++	dctl_data_t dctl = {.d32 = 0 };
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++	gintmsk_data_t gintmsk_data;
++	depctl_data_t depctl;
++	uint32_t diepdma;
++	uint32_t remain_to_transfer = 0;
++	uint8_t i;
++	uint32_t xfer_size;
++
++	ep = get_in_ep(pcd, epnum);
++	dwc_ep = &ep->dwc_ep;
++
++	if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++		dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num);
++		complete_ep(ep);
++		return;
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "diepctl%d=%0x\n", epnum,
++		    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl));
++	dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->dieptsiz);
++	depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl);
++
++	DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n",
++		    dieptsiz.b.pktcnt, dieptsiz.b.xfersize);
++
++	if ((core_if->start_predict == 0) || (depctl.b.eptype & 1)) {
++		if (ep->stopped) {
++			if (core_if->en_multiple_tx_fifo)
++				/* Flush the Tx FIFO */
++				dwc_otg_flush_tx_fifo(core_if, dwc_ep->tx_fifo_num);
++			/* Clear the Global IN NP NAK */
++			dctl.d32 = 0;
++			dctl.b.cgnpinnak = 1;
++			DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
++			/* Restart the transaction */
++			if (dieptsiz.b.pktcnt != 0 || dieptsiz.b.xfersize != 0) {
++				restart_transfer(pcd, epnum);
++			}
++		} else {
++			/* Restart the transaction */
++			if (dieptsiz.b.pktcnt != 0 || dieptsiz.b.xfersize != 0) {
++				restart_transfer(pcd, epnum);
++			}
++			DWC_DEBUGPL(DBG_ANY, "STOPPED!!!\n");
++		}
++		return;
++	}
++
++	if (core_if->start_predict > 2) {	// NP IN EP
++		core_if->start_predict--;
++		return;
++	}
++
++	core_if->start_predict--;
++
++	if (core_if->start_predict == 1) {	// All NP IN Ep's disabled now
++
++		predict_nextep_seq(core_if);
++
++		/* Update all active IN EP's NextEP field based of nextep_seq[] */
++		for ( i = 0; i <= core_if->dev_if->num_in_eps; i++) {
++			depctl.d32 =
++			    DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++			if (core_if->nextep_seq[i] != 0xff) {	// Active NP IN EP
++				depctl.b.nextep = core_if->nextep_seq[i];
++				DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32);
++			}
++		}
++		/* Flush Shared NP TxFIFO */
++		dwc_otg_flush_tx_fifo(core_if, 0);
++		/* Rewind buffers */
++		if (!core_if->dma_desc_enable) {
++			i = core_if->first_in_nextep_seq;
++			do {
++				ep = get_in_ep(pcd, i);
++				dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz);
++				xfer_size = ep->dwc_ep.total_len - ep->dwc_ep.xfer_count;
++				if (xfer_size > ep->dwc_ep.maxxfer)
++					xfer_size = ep->dwc_ep.maxxfer;
++				depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++				if (dieptsiz.b.pktcnt != 0) {
++					if (xfer_size == 0) {
++						remain_to_transfer = 0;
++					} else {
++						if ((xfer_size % ep->dwc_ep.maxpacket) == 0) {
++							remain_to_transfer =
++								dieptsiz.b.pktcnt * ep->dwc_ep.maxpacket;
++						} else {
++							remain_to_transfer = ((dieptsiz.b.pktcnt -1) * ep->dwc_ep.maxpacket)
++								+ (xfer_size % ep->dwc_ep.maxpacket);
++						}
++					}
++					diepdma = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepdma);
++					dieptsiz.b.xfersize = remain_to_transfer;
++					DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->dieptsiz, dieptsiz.d32);
++					diepdma = ep->dwc_ep.dma_addr + (xfer_size - remain_to_transfer);
++					DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepdma, diepdma);
++				}
++				i = core_if->nextep_seq[i];
++			} while (i != core_if->first_in_nextep_seq);
++		} else { // dma_desc_enable
++				DWC_PRINTF("%s Learning Queue not supported in DDMA\n", __func__);
++		}
++
++		/* Restart transfers in predicted sequences */
++		i = core_if->first_in_nextep_seq;
++		do {
++			dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz);
++			depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++			if (dieptsiz.b.pktcnt != 0) {
++				depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++				depctl.b.epena = 1;
++				depctl.b.cnak = 1;
++				DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32);
++			}
++			i = core_if->nextep_seq[i];
++		} while (i != core_if->first_in_nextep_seq);
++
++		/* Clear the global non-periodic IN NAK handshake */
++		dctl.d32 = 0;
++		dctl.b.cgnpinnak = 1;
++		DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
++
++		/* Unmask EP Mismatch interrupt */
++		gintmsk_data.d32 = 0;
++		gintmsk_data.b.epmismatch = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, gintmsk_data.d32);
++
++		core_if->start_predict = 0;
++
++	}
++}
++
++/**
++ * Handler for the IN EP timeout handshake interrupt.
++ */
++static inline void handle_in_ep_timeout_intr(dwc_otg_pcd_t * pcd,
++					     const uint32_t epnum)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++
++#ifdef DEBUG
++	deptsiz_data_t dieptsiz = {.d32 = 0 };
++	uint32_t num = 0;
++#endif
++	dctl_data_t dctl = {.d32 = 0 };
++	dwc_otg_pcd_ep_t *ep;
++
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	ep = get_in_ep(pcd, epnum);
++
++	/* Disable the NP Tx Fifo Empty Interrrupt */
++	if (!core_if->dma_enable) {
++		intr_mask.b.nptxfempty = 1;
++		DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk,
++				 intr_mask.d32, 0);
++	}
++	/** @todo NGS Check EP type.
++	 * Implement for Periodic EPs */
++	/*
++	 * Non-periodic EP
++	 */
++	/* Enable the Global IN NAK Effective Interrupt */
++	intr_mask.b.ginnakeff = 1;
++	DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk, 0, intr_mask.d32);
++
++	/* Set Global IN NAK */
++	dctl.b.sgnpinnak = 1;
++	DWC_MODIFY_REG32(&dev_if->dev_global_regs->dctl, dctl.d32, dctl.d32);
++
++	ep->stopped = 1;
++
++#ifdef DEBUG
++	dieptsiz.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[num]->dieptsiz);
++	DWC_DEBUGPL(DBG_ANY, "pktcnt=%d size=%d\n",
++		    dieptsiz.b.pktcnt, dieptsiz.b.xfersize);
++#endif
++
++#ifdef DISABLE_PERIODIC_EP
++	/*
++	 * Set the NAK bit for this EP to
++	 * start the disable process.
++	 */
++	diepctl.d32 = 0;
++	diepctl.b.snak = 1;
++	DWC_MODIFY_REG32(&dev_if->in_ep_regs[num]->diepctl, diepctl.d32,
++			 diepctl.d32);
++	ep->disabling = 1;
++	ep->stopped = 1;
++#endif
++}
++
++/**
++ * Handler for the IN EP NAK interrupt.
++ */
++static inline int32_t handle_in_ep_nak_intr(dwc_otg_pcd_t * pcd,
++					    const uint32_t epnum)
++{
++	/** @todo implement ISR */
++	dwc_otg_core_if_t *core_if;
++	diepmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "IN EP NAK");
++	core_if = GET_CORE_IF(pcd);
++	intr_mask.b.nak = 1;
++
++	if (core_if->multiproc_int_enable) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++				 diepeachintmsk[epnum], intr_mask.d32, 0);
++	} else {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->diepmsk,
++				 intr_mask.d32, 0);
++	}
++
++	return 1;
++}
++
++/**
++ * Handler for the OUT EP Babble interrupt.
++ */
++static inline int32_t handle_out_ep_babble_intr(dwc_otg_pcd_t * pcd,
++						const uint32_t epnum)
++{
++	/** @todo implement ISR */
++	dwc_otg_core_if_t *core_if;
++	doepmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_PRINTF("INTERRUPT Handler not implemented for %s\n",
++		   "OUT EP Babble");
++	core_if = GET_CORE_IF(pcd);
++	intr_mask.b.babble = 1;
++
++	if (core_if->multiproc_int_enable) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++				 doepeachintmsk[epnum], intr_mask.d32, 0);
++	} else {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk,
++				 intr_mask.d32, 0);
++	}
++
++	return 1;
++}
++
++/**
++ * Handler for the OUT EP NAK interrupt.
++ */
++static inline int32_t handle_out_ep_nak_intr(dwc_otg_pcd_t * pcd,
++					     const uint32_t epnum)
++{
++	/** @todo implement ISR */
++	dwc_otg_core_if_t *core_if;
++	doepmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_ANY, "INTERRUPT Handler not implemented for %s\n", "OUT EP NAK");
++	core_if = GET_CORE_IF(pcd);
++	intr_mask.b.nak = 1;
++
++	if (core_if->multiproc_int_enable) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++				 doepeachintmsk[epnum], intr_mask.d32, 0);
++	} else {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk,
++				 intr_mask.d32, 0);
++	}
++
++	return 1;
++}
++
++/**
++ * Handler for the OUT EP NYET interrupt.
++ */
++static inline int32_t handle_out_ep_nyet_intr(dwc_otg_pcd_t * pcd,
++					      const uint32_t epnum)
++{
++	/** @todo implement ISR */
++	dwc_otg_core_if_t *core_if;
++	doepmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_PRINTF("INTERRUPT Handler not implemented for %s\n", "OUT EP NYET");
++	core_if = GET_CORE_IF(pcd);
++	intr_mask.b.nyet = 1;
++
++	if (core_if->multiproc_int_enable) {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->
++				 doepeachintmsk[epnum], intr_mask.d32, 0);
++	} else {
++		DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk,
++				 intr_mask.d32, 0);
++	}
++
++	return 1;
++}
++
++/**
++ * This interrupt indicates that an IN EP has a pending Interrupt.
++ * The sequence for handling the IN EP interrupt is shown below:
++ * -#	Read the Device All Endpoint Interrupt register
++ * -#	Repeat the following for each IN EP interrupt bit set (from
++ *		LSB to MSB).
++ * -#	Read the Device Endpoint Interrupt (DIEPINTn) register
++ * -#	If "Transfer Complete" call the request complete function
++ * -#	If "Endpoint Disabled" complete the EP disable procedure.
++ * -#	If "AHB Error Interrupt" log error
++ * -#	If "Time-out Handshake" log error
++ * -#	If "IN Token Received when TxFIFO Empty" write packet to Tx
++ *		FIFO.
++ * -#	If "IN Token EP Mismatch" (disable, this is handled by EP
++ *		Mismatch Interrupt)
++ */
++static int32_t dwc_otg_pcd_handle_in_ep_intr(dwc_otg_pcd_t * pcd)
++{
++#define CLEAR_IN_EP_INTR(__core_if,__epnum,__intr) \
++do { \
++		diepint_data_t diepint = {.d32=0}; \
++		diepint.b.__intr = 1; \
++		DWC_WRITE_REG32(&__core_if->dev_if->in_ep_regs[__epnum]->diepint, \
++		diepint.d32); \
++} while (0)
++
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	dwc_otg_dev_if_t *dev_if = core_if->dev_if;
++	diepint_data_t diepint = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	uint32_t ep_intr;
++	uint32_t epnum = 0;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, pcd);
++
++	/* Read in the device interrupt bits */
++	ep_intr = dwc_otg_read_dev_all_in_ep_intr(core_if);
++
++	/* Service the Device IN interrupts for each endpoint */
++	while (ep_intr) {
++		if (ep_intr & 0x1) {
++			uint32_t empty_msk;
++			/* Get EP pointer */
++			ep = get_in_ep(pcd, epnum);
++			dwc_ep = &ep->dwc_ep;
++
++			depctl.d32 =
++			    DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl);
++			empty_msk =
++			    DWC_READ_REG32(&dev_if->
++					   dev_global_regs->dtknqr4_fifoemptymsk);
++
++			DWC_DEBUGPL(DBG_PCDV,
++				    "IN EP INTERRUPT - %d\nepmty_msk - %8x  diepctl - %8x\n",
++				    epnum, empty_msk, depctl.d32);
++
++			DWC_DEBUGPL(DBG_PCD,
++				    "EP%d-%s: type=%d, mps=%d\n",
++				    dwc_ep->num, (dwc_ep->is_in ? "IN" : "OUT"),
++				    dwc_ep->type, dwc_ep->maxpacket);
++
++			diepint.d32 =
++			    dwc_otg_read_dev_in_ep_intr(core_if, dwc_ep);
++
++			DWC_DEBUGPL(DBG_PCDV,
++				    "EP %d Interrupt Register - 0x%x\n", epnum,
++				    diepint.d32);
++			/* Transfer complete */
++			if (diepint.b.xfercompl) {
++				/* Disable the NP Tx FIFO Empty
++				 * Interrupt */
++				if (core_if->en_multiple_tx_fifo == 0) {
++					intr_mask.b.nptxfempty = 1;
++					DWC_MODIFY_REG32
++					    (&core_if->core_global_regs->gintmsk,
++					     intr_mask.d32, 0);
++				} else {
++					/* Disable the Tx FIFO Empty Interrupt for this EP */
++					uint32_t fifoemptymsk =
++					    0x1 << dwc_ep->num;
++					DWC_MODIFY_REG32(&core_if->
++							 dev_if->dev_global_regs->dtknqr4_fifoemptymsk,
++							 fifoemptymsk, 0);
++				}
++				/* Clear the bit in DIEPINTn for this interrupt */
++				CLEAR_IN_EP_INTR(core_if, epnum, xfercompl);
++
++				/* Complete the transfer */
++				if (epnum == 0) {
++					handle_ep0(pcd);
++				}
++#ifdef DWC_EN_ISOC
++				else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++					if (!ep->stopped)
++						complete_iso_ep(pcd, ep);
++				}
++#endif /* DWC_EN_ISOC */
++#ifdef DWC_UTE_PER_IO
++				else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++					if (!ep->stopped)
++						complete_xiso_ep(ep);
++				}
++#endif /* DWC_UTE_PER_IO */
++				else {
++					if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC &&
++							dwc_ep->bInterval > 1) {
++						dwc_ep->frame_num += dwc_ep->bInterval;
++						if (dwc_ep->frame_num > 0x3FFF)
++						{
++							dwc_ep->frm_overrun = 1;
++							dwc_ep->frame_num &= 0x3FFF;
++						} else
++							dwc_ep->frm_overrun = 0;
++					}
++					complete_ep(ep);
++					if(diepint.b.nak)
++						CLEAR_IN_EP_INTR(core_if, epnum, nak);
++				}
++			}
++			/* Endpoint disable      */
++			if (diepint.b.epdisabled) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d IN disabled\n",
++					    epnum);
++				handle_in_ep_disable_intr(pcd, epnum);
++
++				/* Clear the bit in DIEPINTn for this interrupt */
++				CLEAR_IN_EP_INTR(core_if, epnum, epdisabled);
++			}
++			/* AHB Error */
++			if (diepint.b.ahberr) {
++				DWC_ERROR("EP%d IN AHB Error\n", epnum);
++				/* Clear the bit in DIEPINTn for this interrupt */
++				CLEAR_IN_EP_INTR(core_if, epnum, ahberr);
++			}
++			/* TimeOUT Handshake (non-ISOC IN EPs) */
++			if (diepint.b.timeout) {
++				DWC_ERROR("EP%d IN Time-out\n", epnum);
++				handle_in_ep_timeout_intr(pcd, epnum);
++
++				CLEAR_IN_EP_INTR(core_if, epnum, timeout);
++			}
++			/** IN Token received with TxF Empty */
++			if (diepint.b.intktxfemp) {
++				DWC_DEBUGPL(DBG_ANY,
++					    "EP%d IN TKN TxFifo Empty\n",
++					    epnum);
++				if (!ep->stopped && epnum != 0) {
++
++					diepmsk_data_t diepmsk = {.d32 = 0 };
++					diepmsk.b.intktxfemp = 1;
++
++					if (core_if->multiproc_int_enable) {
++						DWC_MODIFY_REG32
++						    (&dev_if->dev_global_regs->diepeachintmsk
++						     [epnum], diepmsk.d32, 0);
++					} else {
++						DWC_MODIFY_REG32
++						    (&dev_if->dev_global_regs->diepmsk,
++						     diepmsk.d32, 0);
++					}
++				} else if (core_if->dma_desc_enable
++					   && epnum == 0
++					   && pcd->ep0state ==
++					   EP0_OUT_STATUS_PHASE) {
++					// EP0 IN set STALL
++					depctl.d32 =
++					    DWC_READ_REG32(&dev_if->in_ep_regs
++							   [epnum]->diepctl);
++
++					/* set the disable and stall bits */
++					if (depctl.b.epena) {
++						depctl.b.epdis = 1;
++					}
++					depctl.b.stall = 1;
++					DWC_WRITE_REG32(&dev_if->in_ep_regs
++							[epnum]->diepctl,
++							depctl.d32);
++				}
++				CLEAR_IN_EP_INTR(core_if, epnum, intktxfemp);
++			}
++			/** IN Token Received with EP mismatch */
++			if (diepint.b.intknepmis) {
++				DWC_DEBUGPL(DBG_ANY,
++					    "EP%d IN TKN EP Mismatch\n", epnum);
++				CLEAR_IN_EP_INTR(core_if, epnum, intknepmis);
++			}
++			/** IN Endpoint NAK Effective */
++			if (diepint.b.inepnakeff) {
++				DWC_DEBUGPL(DBG_ANY,
++					    "EP%d IN EP NAK Effective\n",
++					    epnum);
++				/* Periodic EP */
++				if (ep->disabling) {
++					depctl.d32 = 0;
++					depctl.b.snak = 1;
++					depctl.b.epdis = 1;
++					DWC_MODIFY_REG32(&dev_if->in_ep_regs
++							 [epnum]->diepctl,
++							 depctl.d32,
++							 depctl.d32);
++				}
++				CLEAR_IN_EP_INTR(core_if, epnum, inepnakeff);
++
++			}
++
++			/** IN EP Tx FIFO Empty Intr */
++			if (diepint.b.emptyintr) {
++				DWC_DEBUGPL(DBG_ANY,
++					    "EP%d Tx FIFO Empty Intr \n",
++					    epnum);
++				write_empty_tx_fifo(pcd, epnum);
++
++				CLEAR_IN_EP_INTR(core_if, epnum, emptyintr);
++
++			}
++
++			/** IN EP BNA Intr */
++			if (diepint.b.bna) {
++				CLEAR_IN_EP_INTR(core_if, epnum, bna);
++				if (core_if->dma_desc_enable) {
++#ifdef DWC_EN_ISOC
++					if (dwc_ep->type ==
++					    DWC_OTG_EP_TYPE_ISOC) {
++						/*
++						 * This checking is performed to prevent first "false" BNA
++						 * handling occuring right after reconnect
++						 */
++						if (dwc_ep->next_frame !=
++						    0xffffffff)
++							dwc_otg_pcd_handle_iso_bna(ep);
++					} else
++#endif				/* DWC_EN_ISOC */
++					{
++						dwc_otg_pcd_handle_noniso_bna(ep);
++					}
++				}
++			}
++			/* NAK Interrutp */
++			if (diepint.b.nak) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d IN NAK Interrupt\n",
++					    epnum);
++				if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++					depctl_data_t depctl;
++					if (ep->dwc_ep.frame_num == 0xFFFFFFFF) {
++						ep->dwc_ep.frame_num = core_if->frame_num;
++						if (ep->dwc_ep.bInterval > 1) {
++							depctl.d32 = 0;
++							depctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[epnum]->diepctl);
++							if (ep->dwc_ep.frame_num & 0x1) {
++								depctl.b.setd1pid = 1;
++								depctl.b.setd0pid = 0;
++							} else {
++								depctl.b.setd0pid = 1;
++								depctl.b.setd1pid = 0;
++							}
++							DWC_WRITE_REG32(&dev_if->in_ep_regs[epnum]->diepctl, depctl.d32);
++						}
++						start_next_request(ep);
++					}
++					ep->dwc_ep.frame_num += ep->dwc_ep.bInterval;
++					if (dwc_ep->frame_num > 0x3FFF)	{
++						dwc_ep->frm_overrun = 1;
++						dwc_ep->frame_num &= 0x3FFF;
++					} else
++						dwc_ep->frm_overrun = 0;
++				}
++
++				CLEAR_IN_EP_INTR(core_if, epnum, nak);
++			}
++		}
++		epnum++;
++		ep_intr >>= 1;
++	}
++
++	return 1;
++#undef CLEAR_IN_EP_INTR
++}
++
++/**
++ * This interrupt indicates that an OUT EP has a pending Interrupt.
++ * The sequence for handling the OUT EP interrupt is shown below:
++ * -#	Read the Device All Endpoint Interrupt register
++ * -#	Repeat the following for each OUT EP interrupt bit set (from
++ *		LSB to MSB).
++ * -#	Read the Device Endpoint Interrupt (DOEPINTn) register
++ * -#	If "Transfer Complete" call the request complete function
++ * -#	If "Endpoint Disabled" complete the EP disable procedure.
++ * -#	If "AHB Error Interrupt" log error
++ * -#	If "Setup Phase Done" process Setup Packet (See Standard USB
++ *		Command Processing)
++ */
++static int32_t dwc_otg_pcd_handle_out_ep_intr(dwc_otg_pcd_t * pcd)
++{
++#define CLEAR_OUT_EP_INTR(__core_if,__epnum,__intr) \
++do { \
++		doepint_data_t doepint = {.d32=0}; \
++		doepint.b.__intr = 1; \
++		DWC_WRITE_REG32(&__core_if->dev_if->out_ep_regs[__epnum]->doepint, \
++		doepint.d32); \
++} while (0)
++
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	uint32_t ep_intr;
++	doepint_data_t doepint = {.d32 = 0 };
++	uint32_t epnum = 0;
++	dwc_otg_pcd_ep_t *ep;
++	dwc_ep_t *dwc_ep;
++	dctl_data_t dctl = {.d32 = 0 };
++	gintmsk_data_t gintmsk = {.d32 = 0 };
++
++
++	DWC_DEBUGPL(DBG_PCDV, "%s()\n", __func__);
++
++	/* Read in the device interrupt bits */
++	ep_intr = dwc_otg_read_dev_all_out_ep_intr(core_if);
++
++	while (ep_intr) {
++		if (ep_intr & 0x1) {
++			/* Get EP pointer */
++			ep = get_out_ep(pcd, epnum);
++			dwc_ep = &ep->dwc_ep;
++
++#ifdef VERBOSE
++			DWC_DEBUGPL(DBG_PCDV,
++				    "EP%d-%s: type=%d, mps=%d\n",
++				    dwc_ep->num, (dwc_ep->is_in ? "IN" : "OUT"),
++				    dwc_ep->type, dwc_ep->maxpacket);
++#endif
++			doepint.d32 =
++			    dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep);
++			/* Moved this interrupt upper due to core deffect of asserting
++			 * OUT EP 0 xfercompl along with stsphsrcvd in BDMA */
++			if (doepint.b.stsphsercvd) {
++				deptsiz0_data_t deptsiz;
++				CLEAR_OUT_EP_INTR(core_if, epnum, stsphsercvd);
++				deptsiz.d32 =
++				    DWC_READ_REG32(&core_if->dev_if->
++						   out_ep_regs[0]->doeptsiz);
++				if (core_if->snpsid >= OTG_CORE_REV_3_00a
++				    && core_if->dma_enable
++				    && core_if->dma_desc_enable == 0
++				    && doepint.b.xfercompl
++				    && deptsiz.b.xfersize == 24) {
++					CLEAR_OUT_EP_INTR(core_if, epnum,
++							  xfercompl);
++					doepint.b.xfercompl = 0;
++					ep0_out_start(core_if, pcd);
++				}
++				if ((core_if->dma_desc_enable) ||
++				    (core_if->dma_enable
++				     && core_if->snpsid >=
++				     OTG_CORE_REV_3_00a)) {
++					do_setup_in_status_phase(pcd);
++				}
++			}
++			/* Transfer complete */
++			if (doepint.b.xfercompl) {
++
++				if (epnum == 0) {
++					/* Clear the bit in DOEPINTn for this interrupt */
++					CLEAR_OUT_EP_INTR(core_if, epnum, xfercompl);
++					if (core_if->snpsid >= OTG_CORE_REV_3_00a) {
++						DWC_DEBUGPL(DBG_PCDV, "DOEPINT=%x doepint=%x\n",
++							DWC_READ_REG32(&core_if->dev_if->out_ep_regs[0]->doepint),
++							doepint.d32);
++						DWC_DEBUGPL(DBG_PCDV, "DOEPCTL=%x \n",
++							DWC_READ_REG32(&core_if->dev_if->out_ep_regs[0]->doepctl));
++
++						if (core_if->snpsid >= OTG_CORE_REV_3_00a
++							&& core_if->dma_enable == 0) {
++							doepint_data_t doepint;
++							doepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++														out_ep_regs[0]->doepint);
++							if (pcd->ep0state == EP0_IDLE && doepint.b.sr) {
++								CLEAR_OUT_EP_INTR(core_if, epnum, sr);
++								goto exit_xfercompl;
++							}
++						}
++						/* In case of DDMA  look at SR bit to go to the Data Stage */
++						if (core_if->dma_desc_enable) {
++							dev_dma_desc_sts_t status = {.d32 = 0};
++							if (pcd->ep0state == EP0_IDLE) {
++								status.d32 = core_if->dev_if->setup_desc_addr[core_if->
++											dev_if->setup_desc_index]->status.d32;
++								if(pcd->data_terminated) {
++									 pcd->data_terminated = 0;
++									 status.d32 = core_if->dev_if->out_desc_addr->status.d32;
++									 dwc_memcpy(&pcd->setup_pkt->req, pcd->backup_buf, 8);
++								}
++								if (status.b.sr) {
++									if (doepint.b.setup) {
++										DWC_DEBUGPL(DBG_PCDV, "DMA DESC EP0_IDLE SR=1 setup=1\n");
++										/* Already started data stage, clear setup */
++										CLEAR_OUT_EP_INTR(core_if, epnum, setup);
++										doepint.b.setup = 0;
++										handle_ep0(pcd);
++										/* Prepare for more setup packets */
++										if (pcd->ep0state == EP0_IN_STATUS_PHASE ||
++											pcd->ep0state == EP0_IN_DATA_PHASE) {
++											ep0_out_start(core_if, pcd);
++										}
++
++										goto exit_xfercompl;
++									} else {
++										/* Prepare for more setup packets */
++										DWC_DEBUGPL(DBG_PCDV,
++											"EP0_IDLE SR=1 setup=0 new setup comes\n");
++										ep0_out_start(core_if, pcd);
++									}
++								}
++							} else {
++								dwc_otg_pcd_request_t *req;
++								dev_dma_desc_sts_t status = {.d32 = 0};
++								diepint_data_t diepint0;
++								diepint0.d32 = DWC_READ_REG32(&core_if->dev_if->
++															in_ep_regs[0]->diepint);
++
++								if (pcd->ep0state == EP0_STALL || pcd->ep0state == EP0_DISCONNECT) {
++									DWC_ERROR("EP0 is stalled/disconnected\n");
++								}
++
++								/* Clear IN xfercompl if set */
++								if (diepint0.b.xfercompl && (pcd->ep0state == EP0_IN_STATUS_PHASE
++									|| pcd->ep0state == EP0_IN_DATA_PHASE)) {
++									DWC_WRITE_REG32(&core_if->dev_if->
++										in_ep_regs[0]->diepint, diepint0.d32);
++								}
++
++								status.d32 = core_if->dev_if->setup_desc_addr[core_if->
++									dev_if->setup_desc_index]->status.d32;
++
++								if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len
++									&& (pcd->ep0state == EP0_OUT_DATA_PHASE))
++									status.d32 = core_if->dev_if->out_desc_addr->status.d32;
++								if (pcd->ep0state == EP0_OUT_STATUS_PHASE)
++									status.d32 = core_if->dev_if->
++									out_desc_addr->status.d32;
++
++								if (status.b.sr) {
++									if (DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++										DWC_DEBUGPL(DBG_PCDV, "Request queue empty!!\n");
++									} else {
++										DWC_DEBUGPL(DBG_PCDV, "complete req!!\n");
++										req = DWC_CIRCLEQ_FIRST(&ep->queue);
++										if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len &&
++											pcd->ep0state == EP0_OUT_DATA_PHASE) {
++												/* Read arrived setup packet from req->buf */
++												dwc_memcpy(&pcd->setup_pkt->req,
++													req->buf + ep->dwc_ep.xfer_count, 8);
++										}
++										req->actual = ep->dwc_ep.xfer_count;
++										dwc_otg_request_done(ep, req, -ECONNRESET);
++										ep->dwc_ep.start_xfer_buff = 0;
++										ep->dwc_ep.xfer_buff = 0;
++										ep->dwc_ep.xfer_len = 0;
++									}
++									pcd->ep0state = EP0_IDLE;
++									if (doepint.b.setup) {
++										DWC_DEBUGPL(DBG_PCDV, "EP0_IDLE SR=1 setup=1\n");
++										/* Data stage started, clear setup */
++										CLEAR_OUT_EP_INTR(core_if, epnum, setup);
++										doepint.b.setup = 0;
++										handle_ep0(pcd);
++										/* Prepare for setup packets if ep0in was enabled*/
++										if (pcd->ep0state == EP0_IN_STATUS_PHASE) {
++											ep0_out_start(core_if, pcd);
++										}
++
++										goto exit_xfercompl;
++									} else {
++										/* Prepare for more setup packets */
++										DWC_DEBUGPL(DBG_PCDV,
++											"EP0_IDLE SR=1 setup=0 new setup comes 2\n");
++										ep0_out_start(core_if, pcd);
++									}
++								}
++							}
++						}
++						if (core_if->snpsid >= OTG_CORE_REV_2_94a && core_if->dma_enable
++							&& core_if->dma_desc_enable == 0) {
++							doepint_data_t doepint_temp = {.d32 = 0};
++							deptsiz0_data_t doeptsize0 = {.d32 = 0 };
++							doepint_temp.d32 = DWC_READ_REG32(&core_if->dev_if->
++															out_ep_regs[ep->dwc_ep.num]->doepint);
++							doeptsize0.d32 = DWC_READ_REG32(&core_if->dev_if->
++															out_ep_regs[ep->dwc_ep.num]->doeptsiz);
++							if (pcd->ep0state == EP0_IDLE) {
++								if (doepint_temp.b.sr) {
++									CLEAR_OUT_EP_INTR(core_if, epnum, sr);
++								}
++									doepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++																	out_ep_regs[0]->doepint);
++									if (doeptsize0.b.supcnt == 3) {
++										DWC_DEBUGPL(DBG_ANY, "Rolling over!!!!!!!\n");
++										ep->dwc_ep.stp_rollover = 1;
++									}
++									if (doepint.b.setup) {
++retry:
++										/* Already started data stage, clear setup */
++										CLEAR_OUT_EP_INTR(core_if, epnum, setup);
++										doepint.b.setup = 0;
++										handle_ep0(pcd);
++										ep->dwc_ep.stp_rollover = 0;
++										/* Prepare for more setup packets */
++										if (pcd->ep0state == EP0_IN_STATUS_PHASE ||
++											pcd->ep0state == EP0_IN_DATA_PHASE) {
++											ep0_out_start(core_if, pcd);
++										}
++										goto exit_xfercompl;
++									} else {
++										/* Prepare for more setup packets */
++										DWC_DEBUGPL(DBG_ANY,
++											"EP0_IDLE SR=1 setup=0 new setup comes\n");
++										doepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++																	out_ep_regs[0]->doepint);
++										if(doepint.b.setup)
++											goto retry;
++										ep0_out_start(core_if, pcd);
++									}
++							} else {
++								dwc_otg_pcd_request_t *req;
++								diepint_data_t diepint0 = {.d32 = 0};
++								doepint_data_t doepint_temp = {.d32 = 0};
++								depctl_data_t diepctl0;
++								diepint0.d32 = DWC_READ_REG32(&core_if->dev_if->
++																in_ep_regs[0]->diepint);
++								diepctl0.d32 = DWC_READ_REG32(&core_if->dev_if->
++																in_ep_regs[0]->diepctl);
++
++								if (pcd->ep0state == EP0_IN_DATA_PHASE
++									|| pcd->ep0state == EP0_IN_STATUS_PHASE) {
++									if (diepint0.b.xfercompl) {
++										DWC_WRITE_REG32(&core_if->dev_if->
++											in_ep_regs[0]->diepint, diepint0.d32);
++									}
++									if (diepctl0.b.epena) {
++										diepint_data_t diepint = {.d32 = 0};
++										diepctl0.b.snak = 1;
++										DWC_WRITE_REG32(&core_if->dev_if->
++														in_ep_regs[0]->diepctl, diepctl0.d32);
++										do {
++											dwc_udelay(10);
++											diepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++												in_ep_regs[0]->diepint);
++										} while (!diepint.b.inepnakeff);
++										diepint.b.inepnakeff = 1;
++										DWC_WRITE_REG32(&core_if->dev_if->
++											in_ep_regs[0]->diepint, diepint.d32);
++										diepctl0.d32 = 0;
++										diepctl0.b.epdis = 1;
++										DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[0]->diepctl,
++														diepctl0.d32);
++										do {
++											dwc_udelay(10);
++											diepint.d32 = DWC_READ_REG32(&core_if->dev_if->
++												in_ep_regs[0]->diepint);
++										} while (!diepint.b.epdisabled);
++										diepint.b.epdisabled = 1;
++										DWC_WRITE_REG32(&core_if->dev_if->in_ep_regs[0]->diepint,
++															diepint.d32);
++									}
++								}
++								doepint_temp.d32 = DWC_READ_REG32(&core_if->dev_if->
++																out_ep_regs[ep->dwc_ep.num]->doepint);
++								if (doepint_temp.b.sr) {
++									CLEAR_OUT_EP_INTR(core_if, epnum, sr);
++									if (DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++										DWC_DEBUGPL(DBG_PCDV, "Request queue empty!!\n");
++									} else {
++										DWC_DEBUGPL(DBG_PCDV, "complete req!!\n");
++										req = DWC_CIRCLEQ_FIRST(&ep->queue);
++										if (ep->dwc_ep.xfer_count != ep->dwc_ep.total_len &&
++											pcd->ep0state == EP0_OUT_DATA_PHASE) {
++												/* Read arrived setup packet from req->buf */
++												dwc_memcpy(&pcd->setup_pkt->req,
++													req->buf + ep->dwc_ep.xfer_count, 8);
++										}
++										req->actual = ep->dwc_ep.xfer_count;
++										dwc_otg_request_done(ep, req, -ECONNRESET);
++										ep->dwc_ep.start_xfer_buff = 0;
++										ep->dwc_ep.xfer_buff = 0;
++										ep->dwc_ep.xfer_len = 0;
++									}
++									pcd->ep0state = EP0_IDLE;
++									if (doepint.b.setup) {
++										DWC_DEBUGPL(DBG_PCDV, "EP0_IDLE SR=1 setup=1\n");
++										/* Data stage started, clear setup */
++										CLEAR_OUT_EP_INTR(core_if, epnum, setup);
++										doepint.b.setup = 0;
++										handle_ep0(pcd);
++										/* Prepare for setup packets if ep0in was enabled*/
++										if (pcd->ep0state == EP0_IN_STATUS_PHASE) {
++											ep0_out_start(core_if, pcd);
++										}
++										goto exit_xfercompl;
++									} else {
++										/* Prepare for more setup packets */
++										DWC_DEBUGPL(DBG_PCDV,
++											"EP0_IDLE SR=1 setup=0 new setup comes 2\n");
++										ep0_out_start(core_if, pcd);
++									}
++								}
++							}
++						}
++						if (core_if->dma_enable == 0 || pcd->ep0state != EP0_IDLE)
++							handle_ep0(pcd);
++exit_xfercompl:
++						DWC_DEBUGPL(DBG_PCDV, "DOEPINT=%x doepint=%x\n",
++							dwc_otg_read_dev_out_ep_intr(core_if, dwc_ep), doepint.d32);
++					} else {
++					if (core_if->dma_desc_enable == 0
++					    || pcd->ep0state != EP0_IDLE)
++						handle_ep0(pcd);
++					}
++#ifdef DWC_EN_ISOC
++				} else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++					if (doepint.b.pktdrpsts == 0) {
++						/* Clear the bit in DOEPINTn for this interrupt */
++						CLEAR_OUT_EP_INTR(core_if,
++								  epnum,
++								  xfercompl);
++						complete_iso_ep(pcd, ep);
++					} else {
++
++						doepint_data_t doepint = {.d32 = 0 };
++						doepint.b.xfercompl = 1;
++						doepint.b.pktdrpsts = 1;
++						DWC_WRITE_REG32
++						    (&core_if->dev_if->out_ep_regs
++						     [epnum]->doepint,
++						     doepint.d32);
++						if (handle_iso_out_pkt_dropped
++						    (core_if, dwc_ep)) {
++							complete_iso_ep(pcd,
++									ep);
++						}
++					}
++#endif /* DWC_EN_ISOC */
++#ifdef DWC_UTE_PER_IO
++				} else if (dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++					CLEAR_OUT_EP_INTR(core_if, epnum, xfercompl);
++					if (!ep->stopped)
++						complete_xiso_ep(ep);
++#endif /* DWC_UTE_PER_IO */
++				} else {
++					/* Clear the bit in DOEPINTn for this interrupt */
++					CLEAR_OUT_EP_INTR(core_if, epnum,
++							  xfercompl);
++
++					if (core_if->core_params->dev_out_nak) {
++						DWC_TIMER_CANCEL(pcd->core_if->ep_xfer_timer[epnum]);
++						pcd->core_if->ep_xfer_info[epnum].state = 0;
++#ifdef DEBUG
++						print_memory_payload(pcd, dwc_ep);
++#endif
++					}
++					complete_ep(ep);
++				}
++
++			}
++
++			/* Endpoint disable      */
++			if (doepint.b.epdisabled) {
++
++				/* Clear the bit in DOEPINTn for this interrupt */
++				CLEAR_OUT_EP_INTR(core_if, epnum, epdisabled);
++				if (core_if->core_params->dev_out_nak) {
++#ifdef DEBUG
++					print_memory_payload(pcd, dwc_ep);
++#endif
++					/* In case of timeout condition */
++					if (core_if->ep_xfer_info[epnum].state == 2) {
++						dctl.d32 = DWC_READ_REG32(&core_if->dev_if->
++										dev_global_regs->dctl);
++						dctl.b.cgoutnak = 1;
++						DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl,
++																dctl.d32);
++						/* Unmask goutnakeff interrupt which was masked
++						 * during handle nak out interrupt */
++						gintmsk.b.goutnakeff = 1;
++						DWC_MODIFY_REG32(&core_if->core_global_regs->gintmsk,
++																0, gintmsk.d32);
++
++						complete_ep(ep);
++					}
++				}
++				if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC)
++				{
++					dctl_data_t dctl;
++					gintmsk_data_t intr_mask = {.d32 = 0};
++					dwc_otg_pcd_request_t *req = 0;
++
++					dctl.d32 = DWC_READ_REG32(&core_if->dev_if->
++						dev_global_regs->dctl);
++					dctl.b.cgoutnak = 1;
++					DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl,
++						dctl.d32);
++
++					intr_mask.d32 = 0;
++					intr_mask.b.incomplisoout = 1;
++
++					/* Get any pending requests */
++					if (!DWC_CIRCLEQ_EMPTY(&ep->queue)) {
++						req = DWC_CIRCLEQ_FIRST(&ep->queue);
++						if (!req) {
++							DWC_PRINTF("complete_ep 0x%p, req = NULL!\n", ep);
++						} else {
++							dwc_otg_request_done(ep, req, 0);
++							start_next_request(ep);
++						}
++					} else {
++						DWC_PRINTF("complete_ep 0x%p, ep->queue empty!\n", ep);
++					}
++				}
++			}
++			/* AHB Error */
++			if (doepint.b.ahberr) {
++				DWC_ERROR("EP%d OUT AHB Error\n", epnum);
++				DWC_ERROR("EP%d DEPDMA=0x%08x \n",
++					  epnum, core_if->dev_if->out_ep_regs[epnum]->doepdma);
++				CLEAR_OUT_EP_INTR(core_if, epnum, ahberr);
++			}
++			/* Setup Phase Done (contorl EPs) */
++			if (doepint.b.setup) {
++#ifdef DEBUG_EP0
++				DWC_DEBUGPL(DBG_PCD, "EP%d SETUP Done\n", epnum);
++#endif
++				CLEAR_OUT_EP_INTR(core_if, epnum, setup);
++
++				handle_ep0(pcd);
++			}
++
++			/** OUT EP BNA Intr */
++			if (doepint.b.bna) {
++				CLEAR_OUT_EP_INTR(core_if, epnum, bna);
++				if (core_if->dma_desc_enable) {
++#ifdef DWC_EN_ISOC
++					if (dwc_ep->type ==
++					    DWC_OTG_EP_TYPE_ISOC) {
++						/*
++						 * This checking is performed to prevent first "false" BNA
++						 * handling occuring right after reconnect
++						 */
++						if (dwc_ep->next_frame !=
++						    0xffffffff)
++							dwc_otg_pcd_handle_iso_bna(ep);
++					} else
++#endif				/* DWC_EN_ISOC */
++					{
++						dwc_otg_pcd_handle_noniso_bna(ep);
++					}
++				}
++			}
++			/* Babble Interrupt */
++			if (doepint.b.babble) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d OUT Babble\n",
++					    epnum);
++				handle_out_ep_babble_intr(pcd, epnum);
++
++				CLEAR_OUT_EP_INTR(core_if, epnum, babble);
++			}
++			if (doepint.b.outtknepdis) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d OUT Token received when EP is \
++					disabled\n",epnum);
++				if (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++					doepmsk_data_t doepmsk = {.d32 = 0};
++					ep->dwc_ep.frame_num = core_if->frame_num;
++					if (ep->dwc_ep.bInterval > 1) {
++						depctl_data_t depctl;
++						depctl.d32 = DWC_READ_REG32(&core_if->dev_if->
++													out_ep_regs[epnum]->doepctl);
++						if (ep->dwc_ep.frame_num & 0x1) {
++							depctl.b.setd1pid = 1;
++							depctl.b.setd0pid = 0;
++						} else {
++							depctl.b.setd0pid = 1;
++							depctl.b.setd1pid = 0;
++						}
++						DWC_WRITE_REG32(&core_if->dev_if->
++										out_ep_regs[epnum]->doepctl, depctl.d32);
++					}
++					start_next_request(ep);
++					doepmsk.b.outtknepdis = 1;
++					DWC_MODIFY_REG32(&core_if->dev_if->dev_global_regs->doepmsk,
++								 doepmsk.d32, 0);
++				}
++				CLEAR_OUT_EP_INTR(core_if, epnum, outtknepdis);
++			}
++
++			/* NAK Interrutp */
++			if (doepint.b.nak) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d OUT NAK\n", epnum);
++				handle_out_ep_nak_intr(pcd, epnum);
++
++				CLEAR_OUT_EP_INTR(core_if, epnum, nak);
++			}
++			/* NYET Interrutp */
++			if (doepint.b.nyet) {
++				DWC_DEBUGPL(DBG_ANY, "EP%d OUT NYET\n", epnum);
++				handle_out_ep_nyet_intr(pcd, epnum);
++
++				CLEAR_OUT_EP_INTR(core_if, epnum, nyet);
++			}
++		}
++
++		epnum++;
++		ep_intr >>= 1;
++	}
++
++	return 1;
++
++#undef CLEAR_OUT_EP_INTR
++}
++static int drop_transfer(uint32_t trgt_fr, uint32_t curr_fr, uint8_t frm_overrun)
++{
++	int retval = 0;
++	if(!frm_overrun && curr_fr >= trgt_fr)
++		retval = 1;
++	else if (frm_overrun
++		 && (curr_fr >= trgt_fr && ((curr_fr - trgt_fr) < 0x3FFF / 2)))
++		retval = 1;
++	return retval;
++}
++/**
++ * Incomplete ISO IN Transfer Interrupt.
++ * This interrupt indicates one of the following conditions occurred
++ * while transmitting an ISOC transaction.
++ * - Corrupted IN Token for ISOC EP.
++ * - Packet not complete in FIFO.
++ * The follow actions will be taken:
++ *	-#	Determine the EP
++ *	-#	Set incomplete flag in dwc_ep structure
++ *	-#	Disable EP; when "Endpoint Disabled" interrupt is received
++ *		Flush FIFO
++ */
++int32_t dwc_otg_pcd_handle_incomplete_isoc_in_intr(dwc_otg_pcd_t * pcd)
++{
++	gintsts_data_t gintsts;
++
++#ifdef DWC_EN_ISOC
++	dwc_otg_dev_if_t *dev_if;
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	dsts_data_t dsts = {.d32 = 0 };
++	dwc_ep_t *dwc_ep;
++	int i;
++
++	dev_if = GET_CORE_IF(pcd)->dev_if;
++
++	for (i = 1; i <= dev_if->num_in_eps; ++i) {
++		dwc_ep = &pcd->in_ep[i].dwc_ep;
++		if (dwc_ep->active && dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			deptsiz.d32 =
++			    DWC_READ_REG32(&dev_if->in_ep_regs[i]->dieptsiz);
++			depctl.d32 =
++			    DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++
++			if (depctl.b.epdis && deptsiz.d32) {
++				set_current_pkt_info(GET_CORE_IF(pcd), dwc_ep);
++				if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) {
++					dwc_ep->cur_pkt = 0;
++					dwc_ep->proc_buf_num =
++					    (dwc_ep->proc_buf_num ^ 1) & 0x1;
++
++					if (dwc_ep->proc_buf_num) {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff1;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr1;
++					} else {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff0;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr0;
++					}
++
++				}
++
++				dsts.d32 =
++				    DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if->
++						   dev_global_regs->dsts);
++				dwc_ep->next_frame = dsts.b.soffn;
++
++				dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF
++								  (pcd),
++								  dwc_ep);
++			}
++		}
++	}
++
++#else
++	depctl_data_t depctl = {.d32 = 0 };
++	dwc_ep_t *dwc_ep;
++	dwc_otg_dev_if_t *dev_if;
++	int i;
++	dev_if = GET_CORE_IF(pcd)->dev_if;
++
++	DWC_DEBUGPL(DBG_PCD,"Incomplete ISO IN \n");
++
++	for (i = 1; i <= dev_if->num_in_eps; ++i) {
++		dwc_ep = &pcd->in_ep[i-1].dwc_ep;
++		depctl.d32 =
++			DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++		if (depctl.b.epena && dwc_ep->type == DWC_OTG_EP_TYPE_ISOC) {
++			if (drop_transfer(dwc_ep->frame_num, GET_CORE_IF(pcd)->frame_num,
++							dwc_ep->frm_overrun))
++			{
++				depctl.d32 =
++					DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++				depctl.b.snak = 1;
++				depctl.b.epdis = 1;
++				DWC_MODIFY_REG32(&dev_if->in_ep_regs[i]->diepctl, depctl.d32, depctl.d32);
++			}
++		}
++	}
++
++	/*intr_mask.b.incomplisoin = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);	 */
++#endif				//DWC_EN_ISOC
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.incomplisoin = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * Incomplete ISO OUT Transfer Interrupt.
++ *
++ * This interrupt indicates that the core has dropped an ISO OUT
++ * packet. The following conditions can be the cause:
++ * - FIFO Full, the entire packet would not fit in the FIFO.
++ * - CRC Error
++ * - Corrupted Token
++ * The follow actions will be taken:
++ *	-#	Determine the EP
++ *	-#	Set incomplete flag in dwc_ep structure
++ *	-#	Read any data from the FIFO
++ *	-#	Disable EP. When "Endpoint Disabled" interrupt is received
++ *		re-enable EP.
++ */
++int32_t dwc_otg_pcd_handle_incomplete_isoc_out_intr(dwc_otg_pcd_t * pcd)
++{
++
++	gintsts_data_t gintsts;
++
++#ifdef DWC_EN_ISOC
++	dwc_otg_dev_if_t *dev_if;
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	dsts_data_t dsts = {.d32 = 0 };
++	dwc_ep_t *dwc_ep;
++	int i;
++
++	dev_if = GET_CORE_IF(pcd)->dev_if;
++
++	for (i = 1; i <= dev_if->num_out_eps; ++i) {
++		dwc_ep = &pcd->in_ep[i].dwc_ep;
++		if (pcd->out_ep[i].dwc_ep.active &&
++		    pcd->out_ep[i].dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) {
++			deptsiz.d32 =
++			    DWC_READ_REG32(&dev_if->out_ep_regs[i]->doeptsiz);
++			depctl.d32 =
++			    DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl);
++
++			if (depctl.b.epdis && deptsiz.d32) {
++				set_current_pkt_info(GET_CORE_IF(pcd),
++						     &pcd->out_ep[i].dwc_ep);
++				if (dwc_ep->cur_pkt >= dwc_ep->pkt_cnt) {
++					dwc_ep->cur_pkt = 0;
++					dwc_ep->proc_buf_num =
++					    (dwc_ep->proc_buf_num ^ 1) & 0x1;
++
++					if (dwc_ep->proc_buf_num) {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff1;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr1;
++					} else {
++						dwc_ep->cur_pkt_addr =
++						    dwc_ep->xfer_buff0;
++						dwc_ep->cur_pkt_dma_addr =
++						    dwc_ep->dma_addr0;
++					}
++
++				}
++
++				dsts.d32 =
++				    DWC_READ_REG32(&GET_CORE_IF(pcd)->dev_if->
++						   dev_global_regs->dsts);
++				dwc_ep->next_frame = dsts.b.soffn;
++
++				dwc_otg_iso_ep_start_frm_transfer(GET_CORE_IF
++								  (pcd),
++								  dwc_ep);
++			}
++		}
++	}
++#else
++	/** @todo implement ISR */
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	dwc_otg_core_if_t *core_if;
++	deptsiz_data_t deptsiz = {.d32 = 0 };
++	depctl_data_t depctl = {.d32 = 0 };
++	dctl_data_t dctl = {.d32 = 0 };
++	dwc_ep_t *dwc_ep = NULL;
++	int i;
++	core_if = GET_CORE_IF(pcd);
++
++	for (i = 0; i < core_if->dev_if->num_out_eps; ++i) {
++		dwc_ep = &pcd->out_ep[i].dwc_ep;
++		depctl.d32 =
++			DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl);
++		if (depctl.b.epena && depctl.b.dpid == (core_if->frame_num & 0x1)) {
++			core_if->dev_if->isoc_ep = dwc_ep;
++			deptsiz.d32 =
++					DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doeptsiz);
++				break;
++		}
++	}
++	dctl.d32 = DWC_READ_REG32(&core_if->dev_if->dev_global_regs->dctl);
++	gintsts.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintsts);
++	intr_mask.d32 = DWC_READ_REG32(&core_if->core_global_regs->gintmsk);
++
++	if (!intr_mask.b.goutnakeff) {
++		/* Unmask it */
++		intr_mask.b.goutnakeff = 1;
++		DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, intr_mask.d32);
++	}
++	if (!gintsts.b.goutnakeff) {
++		dctl.b.sgoutnak = 1;
++	}
++	DWC_WRITE_REG32(&core_if->dev_if->dev_global_regs->dctl, dctl.d32);
++
++	depctl.d32 = DWC_READ_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl);
++	if (depctl.b.epena) {
++		depctl.b.epdis = 1;
++		depctl.b.snak = 1;
++	}
++	DWC_WRITE_REG32(&core_if->dev_if->out_ep_regs[dwc_ep->num]->doepctl, depctl.d32);
++
++	intr_mask.d32 = 0;
++	intr_mask.b.incomplisoout = 1;
++
++#endif /* DWC_EN_ISOC */
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.incomplisoout = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * This function handles the Global IN NAK Effective interrupt.
++ *
++ */
++int32_t dwc_otg_pcd_handle_in_nak_effective(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if;
++	depctl_data_t diepctl = {.d32 = 0 };
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	gintsts_data_t gintsts;
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++	int i;
++
++	DWC_DEBUGPL(DBG_PCD, "Global IN NAK Effective\n");
++
++	/* Disable all active IN EPs */
++	for (i = 0; i <= dev_if->num_in_eps; i++) {
++		diepctl.d32 = DWC_READ_REG32(&dev_if->in_ep_regs[i]->diepctl);
++		if (!(diepctl.b.eptype & 1) && diepctl.b.epena) {
++			if (core_if->start_predict > 0)
++				core_if->start_predict++;
++			diepctl.b.epdis = 1;
++			diepctl.b.snak = 1;
++			DWC_WRITE_REG32(&dev_if->in_ep_regs[i]->diepctl, diepctl.d32);
++		}
++	}
++
++
++	/* Disable the Global IN NAK Effective Interrupt */
++	intr_mask.b.ginnakeff = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++			 intr_mask.d32, 0);
++
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.ginnakeff = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * OUT NAK Effective.
++ *
++ */
++int32_t dwc_otg_pcd_handle_out_nak_effective(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_dev_if_t *dev_if = GET_CORE_IF(pcd)->dev_if;
++	gintmsk_data_t intr_mask = {.d32 = 0 };
++	gintsts_data_t gintsts;
++	depctl_data_t doepctl;
++	int i;
++
++	/* Disable the Global OUT NAK Effective Interrupt */
++	intr_mask.b.goutnakeff = 1;
++	DWC_MODIFY_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintmsk,
++		intr_mask.d32, 0);
++
++	/* If DEV OUT NAK enabled*/
++	if (pcd->core_if->core_params->dev_out_nak) {
++		/* Run over all out endpoints to determine the ep number on
++		 * which the timeout has happened
++		 */
++		for (i = 0; i <= dev_if->num_out_eps; i++) {
++			if ( pcd->core_if->ep_xfer_info[i].state == 2 )
++				break;
++		}
++		if (i > dev_if->num_out_eps) {
++			dctl_data_t dctl;
++			dctl.d32 =
++			    DWC_READ_REG32(&dev_if->dev_global_regs->dctl);
++			dctl.b.cgoutnak = 1;
++			DWC_WRITE_REG32(&dev_if->dev_global_regs->dctl,
++				dctl.d32);
++			goto out;
++		}
++
++		/* Disable the endpoint */
++		doepctl.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[i]->doepctl);
++		if (doepctl.b.epena) {
++			doepctl.b.epdis = 1;
++			doepctl.b.snak = 1;
++		}
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[i]->doepctl, doepctl.d32);
++		return 1;
++	}
++	/* We come here from Incomplete ISO OUT handler */
++	if (dev_if->isoc_ep) {
++		dwc_ep_t *dwc_ep = (dwc_ep_t *)dev_if->isoc_ep;
++		uint32_t epnum = dwc_ep->num;
++		doepint_data_t doepint;
++		doepint.d32 =
++		    DWC_READ_REG32(&dev_if->out_ep_regs[dwc_ep->num]->doepint);
++		dev_if->isoc_ep = NULL;
++		doepctl.d32 =
++		    DWC_READ_REG32(&dev_if->out_ep_regs[epnum]->doepctl);
++		DWC_PRINTF("Before disable DOEPCTL = %08x\n", doepctl.d32);
++		if (doepctl.b.epena) {
++			doepctl.b.epdis = 1;
++			doepctl.b.snak = 1;
++		}
++		DWC_WRITE_REG32(&dev_if->out_ep_regs[epnum]->doepctl,
++				doepctl.d32);
++		return 1;
++	} else
++		DWC_PRINTF("INTERRUPT Handler not implemented for %s\n",
++			   "Global OUT NAK Effective\n");
++
++out:
++	/* Clear interrupt */
++	gintsts.d32 = 0;
++	gintsts.b.goutnakeff = 1;
++	DWC_WRITE_REG32(&GET_CORE_IF(pcd)->core_global_regs->gintsts,
++			gintsts.d32);
++
++	return 1;
++}
++
++/**
++ * PCD interrupt handler.
++ *
++ * The PCD handles the device interrupts.  Many conditions can cause a
++ * device interrupt. When an interrupt occurs, the device interrupt
++ * service routine determines the cause of the interrupt and
++ * dispatches handling to the appropriate function. These interrupt
++ * handling functions are described below.
++ *
++ * All interrupt registers are processed from LSB to MSB.
++ *
++ */
++int32_t dwc_otg_pcd_handle_intr(dwc_otg_pcd_t * pcd)
++{
++	dwc_otg_core_if_t *core_if = GET_CORE_IF(pcd);
++#ifdef VERBOSE
++	dwc_otg_core_global_regs_t *global_regs = core_if->core_global_regs;
++#endif
++	gintsts_data_t gintr_status;
++	int32_t retval = 0;
++
++	/* Exit from ISR if core is hibernated */
++	if (core_if->hibernation_suspend == 1) {
++		return retval;
++	}
++#ifdef VERBOSE
++	DWC_DEBUGPL(DBG_ANY, "%s() gintsts=%08x	 gintmsk=%08x\n",
++		    __func__,
++		    DWC_READ_REG32(&global_regs->gintsts),
++		    DWC_READ_REG32(&global_regs->gintmsk));
++#endif
++
++	if (dwc_otg_is_device_mode(core_if)) {
++		DWC_SPINLOCK(pcd->lock);
++#ifdef VERBOSE
++		DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%08x  gintmsk=%08x\n",
++			    __func__,
++			    DWC_READ_REG32(&global_regs->gintsts),
++			    DWC_READ_REG32(&global_regs->gintmsk));
++#endif
++
++		gintr_status.d32 = dwc_otg_read_core_intr(core_if);
++
++		DWC_DEBUGPL(DBG_PCDV, "%s: gintsts&gintmsk=%08x\n",
++			    __func__, gintr_status.d32);
++
++		if (gintr_status.b.sofintr) {
++			retval |= dwc_otg_pcd_handle_sof_intr(pcd);
++		}
++		if (gintr_status.b.rxstsqlvl) {
++			retval |=
++			    dwc_otg_pcd_handle_rx_status_q_level_intr(pcd);
++		}
++		if (gintr_status.b.nptxfempty) {
++			retval |= dwc_otg_pcd_handle_np_tx_fifo_empty_intr(pcd);
++		}
++		if (gintr_status.b.goutnakeff) {
++			retval |= dwc_otg_pcd_handle_out_nak_effective(pcd);
++		}
++		if (gintr_status.b.i2cintr) {
++			retval |= dwc_otg_pcd_handle_i2c_intr(pcd);
++		}
++		if (gintr_status.b.erlysuspend) {
++			retval |= dwc_otg_pcd_handle_early_suspend_intr(pcd);
++		}
++		if (gintr_status.b.usbreset) {
++			retval |= dwc_otg_pcd_handle_usb_reset_intr(pcd);
++		}
++		if (gintr_status.b.enumdone) {
++			retval |= dwc_otg_pcd_handle_enum_done_intr(pcd);
++		}
++		if (gintr_status.b.isooutdrop) {
++			retval |=
++			    dwc_otg_pcd_handle_isoc_out_packet_dropped_intr
++			    (pcd);
++		}
++		if (gintr_status.b.eopframe) {
++			retval |=
++			    dwc_otg_pcd_handle_end_periodic_frame_intr(pcd);
++		}
++		if (gintr_status.b.inepint) {
++			if (!core_if->multiproc_int_enable) {
++				retval |= dwc_otg_pcd_handle_in_ep_intr(pcd);
++			}
++		}
++		if (gintr_status.b.outepintr) {
++			if (!core_if->multiproc_int_enable) {
++				retval |= dwc_otg_pcd_handle_out_ep_intr(pcd);
++			}
++		}
++		if (gintr_status.b.epmismatch) {
++			retval |= dwc_otg_pcd_handle_ep_mismatch_intr(pcd);
++		}
++		if (gintr_status.b.fetsusp) {
++			retval |= dwc_otg_pcd_handle_ep_fetsusp_intr(pcd);
++		}
++		if (gintr_status.b.ginnakeff) {
++			retval |= dwc_otg_pcd_handle_in_nak_effective(pcd);
++		}
++		if (gintr_status.b.incomplisoin) {
++			retval |=
++			    dwc_otg_pcd_handle_incomplete_isoc_in_intr(pcd);
++		}
++		if (gintr_status.b.incomplisoout) {
++			retval |=
++			    dwc_otg_pcd_handle_incomplete_isoc_out_intr(pcd);
++		}
++
++		/* In MPI mode Device Endpoints interrupts are asserted
++		 * without setting outepintr and inepint bits set, so these
++		 * Interrupt handlers are called without checking these bit-fields
++		 */
++		if (core_if->multiproc_int_enable) {
++			retval |= dwc_otg_pcd_handle_in_ep_intr(pcd);
++			retval |= dwc_otg_pcd_handle_out_ep_intr(pcd);
++		}
++#ifdef VERBOSE
++		DWC_DEBUGPL(DBG_PCDV, "%s() gintsts=%0x\n", __func__,
++			    DWC_READ_REG32(&global_regs->gintsts));
++#endif
++		DWC_SPINUNLOCK(pcd->lock);
++	}
++	return retval;
++}
++
++#endif /* DWC_HOST_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_linux.c
+@@ -0,0 +1,1262 @@
++ /* ==========================================================================
++  * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_pcd_linux.c $
++  * $Revision: #21 $
++  * $Date: 2012/08/10 $
++  * $Change: 2047372 $
++  *
++  * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++  * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++  * otherwise expressly agreed to in writing between Synopsys and you.
++  *
++  * The Software IS NOT an item of Licensed Software or Licensed Product under
++  * any End User Software License Agreement or Agreement for Licensed Product
++  * with Synopsys or any supplement thereto. You are permitted to use and
++  * redistribute this Software in source and binary forms, with or without
++  * modification, provided that redistributions of source code must retain this
++  * notice. You may not view, use, disclose, copy or distribute this file or
++  * any information contained herein except pursuant to this license grant from
++  * Synopsys. If you do not agree with this notice, including the disclaimer
++  * below, then you are not authorized to use the Software.
++  *
++  * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++  * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++  * DAMAGE.
++  * ========================================================================== */
++#ifndef DWC_HOST_ONLY
++
++/** @file
++ * This file implements the Peripheral Controller Driver.
++ *
++ * The Peripheral Controller Driver (PCD) is responsible for
++ * translating requests from the Function Driver into the appropriate
++ * actions on the DWC_otg controller. It isolates the Function Driver
++ * from the specifics of the controller by providing an API to the
++ * Function Driver.
++ *
++ * The Peripheral Controller Driver for Linux will implement the
++ * Gadget API, so that the existing Gadget drivers can be used.
++ * (Gadget Driver is the Linux terminology for a Function Driver.)
++ *
++ * The Linux Gadget API is defined in the header file
++ * <code><linux/usb_gadget.h></code>.  The USB EP operations API is
++ * defined in the structure <code>usb_ep_ops</code> and the USB
++ * Controller API is defined in the structure
++ * <code>usb_gadget_ops</code>.
++ *
++ */
++
++#include "dwc_otg_os_dep.h"
++#include "dwc_otg_pcd_if.h"
++#include "dwc_otg_pcd.h"
++#include "dwc_otg_driver.h"
++#include "dwc_otg_dbg.h"
++
++extern bool fiq_enable;
++
++static struct gadget_wrapper {
++	dwc_otg_pcd_t *pcd;
++
++	struct usb_gadget gadget;
++	struct usb_gadget_driver *driver;
++
++	struct usb_ep ep0;
++	struct usb_ep in_ep[16];
++	struct usb_ep out_ep[16];
++
++} *gadget_wrapper;
++
++/* Display the contents of the buffer */
++extern void dump_msg(const u8 * buf, unsigned int length);
++/**
++ * Get the dwc_otg_pcd_ep_t* from usb_ep* pointer - NULL in case
++ * if the endpoint is not found
++ */
++static struct dwc_otg_pcd_ep *ep_from_handle(dwc_otg_pcd_t * pcd, void *handle)
++{
++	int i;
++	if (pcd->ep0.priv == handle) {
++		return &pcd->ep0;
++	}
++
++	for (i = 0; i < MAX_EPS_CHANNELS - 1; i++) {
++		if (pcd->in_ep[i].priv == handle)
++			return &pcd->in_ep[i];
++		if (pcd->out_ep[i].priv == handle)
++			return &pcd->out_ep[i];
++	}
++
++	return NULL;
++}
++
++/* USB Endpoint Operations */
++/*
++ * The following sections briefly describe the behavior of the Gadget
++ * API endpoint operations implemented in the DWC_otg driver
++ * software. Detailed descriptions of the generic behavior of each of
++ * these functions can be found in the Linux header file
++ * include/linux/usb_gadget.h.
++ *
++ * The Gadget API provides wrapper functions for each of the function
++ * pointers defined in usb_ep_ops. The Gadget Driver calls the wrapper
++ * function, which then calls the underlying PCD function. The
++ * following sections are named according to the wrapper
++ * functions. Within each section, the corresponding DWC_otg PCD
++ * function name is specified.
++ *
++ */
++
++/**
++ * This function is called by the Gadget Driver for each EP to be
++ * configured for the current configuration (SET_CONFIGURATION).
++ *
++ * This function initializes the dwc_otg_ep_t data structure, and then
++ * calls dwc_otg_ep_activate.
++ */
++static int ep_enable(struct usb_ep *usb_ep,
++		     const struct usb_endpoint_descriptor *ep_desc)
++{
++	int retval;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, usb_ep, ep_desc);
++
++	if (!usb_ep || !ep_desc || ep_desc->bDescriptorType != USB_DT_ENDPOINT) {
++		DWC_WARN("%s, bad ep or descriptor\n", __func__);
++		return -EINVAL;
++	}
++	if (usb_ep == &gadget_wrapper->ep0) {
++		DWC_WARN("%s, bad ep(0)\n", __func__);
++		return -EINVAL;
++	}
++
++	/* Check FIFO size? */
++	if (!ep_desc->wMaxPacketSize) {
++		DWC_WARN("%s, bad %s maxpacket\n", __func__, usb_ep->name);
++		return -ERANGE;
++	}
++
++	if (!gadget_wrapper->driver ||
++	    gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) {
++		DWC_WARN("%s, bogus device state\n", __func__);
++		return -ESHUTDOWN;
++	}
++
++	/* Delete after check - MAS */
++#if 0
++	nat = (uint32_t) ep_desc->wMaxPacketSize;
++	printk(KERN_ALERT "%s: nat (before) =%d\n", __func__, nat);
++	nat = (nat >> 11) & 0x03;
++	printk(KERN_ALERT "%s: nat (after) =%d\n", __func__, nat);
++#endif
++	retval = dwc_otg_pcd_ep_enable(gadget_wrapper->pcd,
++				       (const uint8_t *)ep_desc,
++				       (void *)usb_ep);
++	if (retval) {
++		DWC_WARN("dwc_otg_pcd_ep_enable failed\n");
++		return -EINVAL;
++	}
++
++	usb_ep->maxpacket = le16_to_cpu(ep_desc->wMaxPacketSize);
++
++	return 0;
++}
++
++/**
++ * This function is called when an EP is disabled due to disconnect or
++ * change in configuration. Any pending requests will terminate with a
++ * status of -ESHUTDOWN.
++ *
++ * This function modifies the dwc_otg_ep_t data structure for this EP,
++ * and then calls dwc_otg_ep_deactivate.
++ */
++static int ep_disable(struct usb_ep *usb_ep)
++{
++	int retval;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, usb_ep);
++	if (!usb_ep) {
++		DWC_DEBUGPL(DBG_PCD, "%s, %s not enabled\n", __func__,
++			    usb_ep ? usb_ep->name : NULL);
++		return -EINVAL;
++	}
++
++	retval = dwc_otg_pcd_ep_disable(gadget_wrapper->pcd, usb_ep);
++	if (retval) {
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++
++/**
++ * This function allocates a request object to use with the specified
++ * endpoint.
++ *
++ * @param ep The endpoint to be used with with the request
++ * @param gfp_flags the GFP_* flags to use.
++ */
++static struct usb_request *dwc_otg_pcd_alloc_request(struct usb_ep *ep,
++						     gfp_t gfp_flags)
++{
++	struct usb_request *usb_req;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%d)\n", __func__, ep, gfp_flags);
++	if (0 == ep) {
++		DWC_WARN("%s() %s\n", __func__, "Invalid EP!\n");
++		return 0;
++	}
++	usb_req = kzalloc(sizeof(*usb_req), gfp_flags);
++	if (0 == usb_req) {
++		DWC_WARN("%s() %s\n", __func__, "request allocation failed!\n");
++		return 0;
++	}
++	usb_req->dma = DWC_DMA_ADDR_INVALID;
++
++	return usb_req;
++}
++
++/**
++ * This function frees a request object.
++ *
++ * @param ep The endpoint associated with the request
++ * @param req The request being freed
++ */
++static void dwc_otg_pcd_free_request(struct usb_ep *ep, struct usb_request *req)
++{
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, ep, req);
++
++	if (0 == ep || 0 == req) {
++		DWC_WARN("%s() %s\n", __func__,
++			 "Invalid ep or req argument!\n");
++		return;
++	}
++
++	kfree(req);
++}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++/**
++ * This function allocates an I/O buffer to be used for a transfer
++ * to/from the specified endpoint.
++ *
++ * @param usb_ep The endpoint to be used with with the request
++ * @param bytes The desired number of bytes for the buffer
++ * @param dma Pointer to the buffer's DMA address; must be valid
++ * @param gfp_flags the GFP_* flags to use.
++ * @return address of a new buffer or null is buffer could not be allocated.
++ */
++static void *dwc_otg_pcd_alloc_buffer(struct usb_ep *usb_ep, unsigned bytes,
++				      dma_addr_t * dma, gfp_t gfp_flags)
++{
++	void *buf;
++	dwc_otg_pcd_t *pcd = 0;
++
++	pcd = gadget_wrapper->pcd;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%d,%p,%0x)\n", __func__, usb_ep, bytes,
++		    dma, gfp_flags);
++
++	/* Check dword alignment */
++	if ((bytes & 0x3UL) != 0) {
++		DWC_WARN("%s() Buffer size is not a multiple of"
++			 "DWORD size (%d)", __func__, bytes);
++	}
++
++	buf = dma_alloc_coherent(NULL, bytes, dma, gfp_flags);
++	WARN_ON(!buf);
++
++	/* Check dword alignment */
++	if (((int)buf & 0x3UL) != 0) {
++		DWC_WARN("%s() Buffer is not DWORD aligned (%p)",
++			 __func__, buf);
++	}
++
++	return buf;
++}
++
++/**
++ * This function frees an I/O buffer that was allocated by alloc_buffer.
++ *
++ * @param usb_ep the endpoint associated with the buffer
++ * @param buf address of the buffer
++ * @param dma The buffer's DMA address
++ * @param bytes The number of bytes of the buffer
++ */
++static void dwc_otg_pcd_free_buffer(struct usb_ep *usb_ep, void *buf,
++				    dma_addr_t dma, unsigned bytes)
++{
++	dwc_otg_pcd_t *pcd = 0;
++
++	pcd = gadget_wrapper->pcd;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%0x,%d)\n", __func__, buf, dma, bytes);
++
++	dma_free_coherent(NULL, bytes, buf, dma);
++}
++#endif
++
++/**
++ * This function is used to submit an I/O Request to an EP.
++ *
++ *	- When the request completes the request's completion callback
++ *	  is called to return the request to the driver.
++ *	- An EP, except control EPs, may have multiple requests
++ *	  pending.
++ *	- Once submitted the request cannot be examined or modified.
++ *	- Each request is turned into one or more packets.
++ *	- A BULK EP can queue any amount of data; the transfer is
++ *	  packetized.
++ *	- Zero length Packets are specified with the request 'zero'
++ *	  flag.
++ */
++static int ep_queue(struct usb_ep *usb_ep, struct usb_request *usb_req,
++		    gfp_t gfp_flags)
++{
++	dwc_otg_pcd_t *pcd;
++	struct dwc_otg_pcd_ep *ep = NULL;
++	int retval = 0, is_isoc_ep = 0;
++	dma_addr_t dma_addr = DWC_DMA_ADDR_INVALID;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p,%d)\n",
++		    __func__, usb_ep, usb_req, gfp_flags);
++
++	if (!usb_req || !usb_req->complete || !usb_req->buf) {
++		DWC_WARN("bad params\n");
++		return -EINVAL;
++	}
++
++	if (!usb_ep) {
++		DWC_WARN("bad ep\n");
++		return -EINVAL;
++	}
++
++	pcd = gadget_wrapper->pcd;
++	if (!gadget_wrapper->driver ||
++	    gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) {
++		DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n",
++			    gadget_wrapper->gadget.speed);
++		DWC_WARN("bogus device state\n");
++		return -ESHUTDOWN;
++	}
++
++	DWC_DEBUGPL(DBG_PCD, "%s queue req %p, len %d buf %p\n",
++		    usb_ep->name, usb_req, usb_req->length, usb_req->buf);
++
++	usb_req->status = -EINPROGRESS;
++	usb_req->actual = 0;
++
++	ep = ep_from_handle(pcd, usb_ep);
++	if (ep == NULL)
++		is_isoc_ep = 0;
++	else
++		is_isoc_ep = (ep->dwc_ep.type == DWC_OTG_EP_TYPE_ISOC) ? 1 : 0;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++	dma_addr = usb_req->dma;
++#else
++	if (GET_CORE_IF(pcd)->dma_enable) {
++                dwc_otg_device_t *otg_dev = gadget_wrapper->pcd->otg_dev;
++                struct device *dev = NULL;
++
++                if (otg_dev != NULL)
++                        dev = DWC_OTG_OS_GETDEV(otg_dev->os_dep);
++
++		if (usb_req->length != 0 &&
++                    usb_req->dma == DWC_DMA_ADDR_INVALID) {
++                        dma_addr = dma_map_single(dev, usb_req->buf,
++                                                  usb_req->length,
++                                                  ep->dwc_ep.is_in ?
++                                                        DMA_TO_DEVICE:
++                                                        DMA_FROM_DEVICE);
++		}
++	}
++#endif
++
++#ifdef DWC_UTE_PER_IO
++	if (is_isoc_ep == 1) {
++		retval = dwc_otg_pcd_xiso_ep_queue(pcd, usb_ep, usb_req->buf, dma_addr,
++			usb_req->length, usb_req->zero, usb_req,
++			gfp_flags == GFP_ATOMIC ? 1 : 0, &usb_req->ext_req);
++		if (retval)
++			return -EINVAL;
++
++		return 0;
++	}
++#endif
++	retval = dwc_otg_pcd_ep_queue(pcd, usb_ep, usb_req->buf, dma_addr,
++				      usb_req->length, usb_req->zero, usb_req,
++				      gfp_flags == GFP_ATOMIC ? 1 : 0);
++	if (retval) {
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++/**
++ * This function cancels an I/O request from an EP.
++ */
++static int ep_dequeue(struct usb_ep *usb_ep, struct usb_request *usb_req)
++{
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p,%p)\n", __func__, usb_ep, usb_req);
++
++	if (!usb_ep || !usb_req) {
++		DWC_WARN("bad argument\n");
++		return -EINVAL;
++	}
++	if (!gadget_wrapper->driver ||
++	    gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) {
++		DWC_WARN("bogus device state\n");
++		return -ESHUTDOWN;
++	}
++	if (dwc_otg_pcd_ep_dequeue(gadget_wrapper->pcd, usb_ep, usb_req)) {
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++/**
++ * usb_ep_set_halt stalls an endpoint.
++ *
++ * usb_ep_clear_halt clears an endpoint halt and resets its data
++ * toggle.
++ *
++ * Both of these functions are implemented with the same underlying
++ * function. The behavior depends on the value argument.
++ *
++ * @param[in] usb_ep the Endpoint to halt or clear halt.
++ * @param[in] value
++ *	- 0 means clear_halt.
++ *	- 1 means set_halt,
++ *	- 2 means clear stall lock flag.
++ *	- 3 means set  stall lock flag.
++ */
++static int ep_halt(struct usb_ep *usb_ep, int value)
++{
++	int retval = 0;
++
++	DWC_DEBUGPL(DBG_PCD, "HALT %s %d\n", usb_ep->name, value);
++
++	if (!usb_ep) {
++		DWC_WARN("bad ep\n");
++		return -EINVAL;
++	}
++
++	retval = dwc_otg_pcd_ep_halt(gadget_wrapper->pcd, usb_ep, value);
++	if (retval == -DWC_E_AGAIN) {
++		return -EAGAIN;
++	} else if (retval) {
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++
++//#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30))
++#if 0
++/**
++ * ep_wedge: sets the halt feature and ignores clear requests
++ *
++ * @usb_ep: the endpoint being wedged
++ *
++ * Use this to stall an endpoint and ignore CLEAR_FEATURE(HALT_ENDPOINT)
++ * requests. If the gadget driver clears the halt status, it will
++ * automatically unwedge the endpoint.
++ *
++ * Returns zero on success, else negative errno. *
++ * Check usb_ep_set_wedge() at "usb_gadget.h" for details
++ */
++static int ep_wedge(struct usb_ep *usb_ep)
++{
++	int retval = 0;
++
++	DWC_DEBUGPL(DBG_PCD, "WEDGE %s\n", usb_ep->name);
++
++	if (!usb_ep) {
++		DWC_WARN("bad ep\n");
++		return -EINVAL;
++	}
++
++	retval = dwc_otg_pcd_ep_wedge(gadget_wrapper->pcd, usb_ep);
++	if (retval == -DWC_E_AGAIN) {
++		retval = -EAGAIN;
++	} else if (retval) {
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++#endif
++
++#ifdef DWC_EN_ISOC
++/**
++ * This function is used to submit an ISOC Transfer Request to an EP.
++ *
++ *	- Every time a sync period completes the request's completion callback
++ *	  is called to provide data to the gadget driver.
++ *	- Once submitted the request cannot be modified.
++ *	- Each request is turned into periodic data packets untill ISO
++ *	  Transfer is stopped..
++ */
++static int iso_ep_start(struct usb_ep *usb_ep, struct usb_iso_request *req,
++			gfp_t gfp_flags)
++{
++	int retval = 0;
++
++	if (!req || !req->process_buffer || !req->buf0 || !req->buf1) {
++		DWC_WARN("bad params\n");
++		return -EINVAL;
++	}
++
++	if (!usb_ep) {
++		DWC_PRINTF("bad params\n");
++		return -EINVAL;
++	}
++
++	req->status = -EINPROGRESS;
++
++	retval =
++	    dwc_otg_pcd_iso_ep_start(gadget_wrapper->pcd, usb_ep, req->buf0,
++				     req->buf1, req->dma0, req->dma1,
++				     req->sync_frame, req->data_pattern_frame,
++				     req->data_per_frame,
++				     req->
++				     flags & USB_REQ_ISO_ASAP ? -1 :
++				     req->start_frame, req->buf_proc_intrvl,
++				     req, gfp_flags == GFP_ATOMIC ? 1 : 0);
++
++	if (retval) {
++		return -EINVAL;
++	}
++
++	return retval;
++}
++
++/**
++ * This function stops ISO EP Periodic Data Transfer.
++ */
++static int iso_ep_stop(struct usb_ep *usb_ep, struct usb_iso_request *req)
++{
++	int retval = 0;
++	if (!usb_ep) {
++		DWC_WARN("bad ep\n");
++	}
++
++	if (!gadget_wrapper->driver ||
++	    gadget_wrapper->gadget.speed == USB_SPEED_UNKNOWN) {
++		DWC_DEBUGPL(DBG_PCDV, "gadget.speed=%d\n",
++			    gadget_wrapper->gadget.speed);
++		DWC_WARN("bogus device state\n");
++	}
++
++	dwc_otg_pcd_iso_ep_stop(gadget_wrapper->pcd, usb_ep, req);
++	if (retval) {
++		retval = -EINVAL;
++	}
++
++	return retval;
++}
++
++static struct usb_iso_request *alloc_iso_request(struct usb_ep *ep,
++						 int packets, gfp_t gfp_flags)
++{
++	struct usb_iso_request *pReq = NULL;
++	uint32_t req_size;
++
++	req_size = sizeof(struct usb_iso_request);
++	req_size +=
++	    (2 * packets * (sizeof(struct usb_gadget_iso_packet_descriptor)));
++
++	pReq = kmalloc(req_size, gfp_flags);
++	if (!pReq) {
++		DWC_WARN("Can't allocate Iso Request\n");
++		return 0;
++	}
++	pReq->iso_packet_desc0 = (void *)(pReq + 1);
++
++	pReq->iso_packet_desc1 = pReq->iso_packet_desc0 + packets;
++
++	return pReq;
++}
++
++static void free_iso_request(struct usb_ep *ep, struct usb_iso_request *req)
++{
++	kfree(req);
++}
++
++static struct usb_isoc_ep_ops dwc_otg_pcd_ep_ops = {
++	.ep_ops = {
++		   .enable = ep_enable,
++		   .disable = ep_disable,
++
++		   .alloc_request = dwc_otg_pcd_alloc_request,
++		   .free_request = dwc_otg_pcd_free_request,
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++		   .alloc_buffer = dwc_otg_pcd_alloc_buffer,
++		   .free_buffer = dwc_otg_pcd_free_buffer,
++#endif
++
++		   .queue = ep_queue,
++		   .dequeue = ep_dequeue,
++
++		   .set_halt = ep_halt,
++		   .fifo_status = 0,
++		   .fifo_flush = 0,
++		   },
++	.iso_ep_start = iso_ep_start,
++	.iso_ep_stop = iso_ep_stop,
++	.alloc_iso_request = alloc_iso_request,
++	.free_iso_request = free_iso_request,
++};
++
++#else
++
++	int (*enable) (struct usb_ep *ep,
++		const struct usb_endpoint_descriptor *desc);
++	int (*disable) (struct usb_ep *ep);
++
++	struct usb_request *(*alloc_request) (struct usb_ep *ep,
++		gfp_t gfp_flags);
++	void (*free_request) (struct usb_ep *ep, struct usb_request *req);
++
++	int (*queue) (struct usb_ep *ep, struct usb_request *req,
++		gfp_t gfp_flags);
++	int (*dequeue) (struct usb_ep *ep, struct usb_request *req);
++
++	int (*set_halt) (struct usb_ep *ep, int value);
++	int (*set_wedge) (struct usb_ep *ep);
++
++	int (*fifo_status) (struct usb_ep *ep);
++	void (*fifo_flush) (struct usb_ep *ep);
++static struct usb_ep_ops dwc_otg_pcd_ep_ops = {
++	.enable = ep_enable,
++	.disable = ep_disable,
++
++	.alloc_request = dwc_otg_pcd_alloc_request,
++	.free_request = dwc_otg_pcd_free_request,
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
++	.alloc_buffer = dwc_otg_pcd_alloc_buffer,
++	.free_buffer = dwc_otg_pcd_free_buffer,
++#else
++	/* .set_wedge = ep_wedge, */
++        .set_wedge = NULL, /* uses set_halt instead */
++#endif
++
++	.queue = ep_queue,
++	.dequeue = ep_dequeue,
++
++	.set_halt = ep_halt,
++	.fifo_status = 0,
++	.fifo_flush = 0,
++
++};
++
++#endif /* _EN_ISOC_ */
++/*	Gadget Operations */
++/**
++ * The following gadget operations will be implemented in the DWC_otg
++ * PCD. Functions in the API that are not described below are not
++ * implemented.
++ *
++ * The Gadget API provides wrapper functions for each of the function
++ * pointers defined in usb_gadget_ops. The Gadget Driver calls the
++ * wrapper function, which then calls the underlying PCD function. The
++ * following sections are named according to the wrapper functions
++ * (except for ioctl, which doesn't have a wrapper function). Within
++ * each section, the corresponding DWC_otg PCD function name is
++ * specified.
++ *
++ */
++
++/**
++ *Gets the USB Frame number of the last SOF.
++ */
++static int get_frame_number(struct usb_gadget *gadget)
++{
++	struct gadget_wrapper *d;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, gadget);
++
++	if (gadget == 0) {
++		return -ENODEV;
++	}
++
++	d = container_of(gadget, struct gadget_wrapper, gadget);
++	return dwc_otg_pcd_get_frame_number(d->pcd);
++}
++
++#ifdef CONFIG_USB_DWC_OTG_LPM
++static int test_lpm_enabled(struct usb_gadget *gadget)
++{
++	struct gadget_wrapper *d;
++
++	d = container_of(gadget, struct gadget_wrapper, gadget);
++
++	return dwc_otg_pcd_is_lpm_enabled(d->pcd);
++}
++#endif
++
++/**
++ * Initiates Session Request Protocol (SRP) to wakeup the host if no
++ * session is in progress. If a session is already in progress, but
++ * the device is suspended, remote wakeup signaling is started.
++ *
++ */
++static int wakeup(struct usb_gadget *gadget)
++{
++	struct gadget_wrapper *d;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, gadget);
++
++	if (gadget == 0) {
++		return -ENODEV;
++	} else {
++		d = container_of(gadget, struct gadget_wrapper, gadget);
++	}
++	dwc_otg_pcd_wakeup(d->pcd);
++	return 0;
++}
++
++static const struct usb_gadget_ops dwc_otg_pcd_ops = {
++	.get_frame = get_frame_number,
++	.wakeup = wakeup,
++#ifdef CONFIG_USB_DWC_OTG_LPM
++	.lpm_support = test_lpm_enabled,
++#endif
++	// current versions must always be self-powered
++};
++
++static int _setup(dwc_otg_pcd_t * pcd, uint8_t * bytes)
++{
++	int retval = -DWC_E_NOT_SUPPORTED;
++	if (gadget_wrapper->driver && gadget_wrapper->driver->setup) {
++		retval = gadget_wrapper->driver->setup(&gadget_wrapper->gadget,
++						       (struct usb_ctrlrequest
++							*)bytes);
++	}
++
++	if (retval == -ENOTSUPP) {
++		retval = -DWC_E_NOT_SUPPORTED;
++	} else if (retval < 0) {
++		retval = -DWC_E_INVALID;
++	}
++
++	return retval;
++}
++
++#ifdef DWC_EN_ISOC
++static int _isoc_complete(dwc_otg_pcd_t * pcd, void *ep_handle,
++			  void *req_handle, int proc_buf_num)
++{
++	int i, packet_count;
++	struct usb_gadget_iso_packet_descriptor *iso_packet = 0;
++	struct usb_iso_request *iso_req = req_handle;
++
++	if (proc_buf_num) {
++		iso_packet = iso_req->iso_packet_desc1;
++	} else {
++		iso_packet = iso_req->iso_packet_desc0;
++	}
++	packet_count =
++	    dwc_otg_pcd_get_iso_packet_count(pcd, ep_handle, req_handle);
++	for (i = 0; i < packet_count; ++i) {
++		int status;
++		int actual;
++		int offset;
++		dwc_otg_pcd_get_iso_packet_params(pcd, ep_handle, req_handle,
++						  i, &status, &actual, &offset);
++		switch (status) {
++		case -DWC_E_NO_DATA:
++			status = -ENODATA;
++			break;
++		default:
++			if (status) {
++				DWC_PRINTF("unknown status in isoc packet\n");
++			}
++
++		}
++		iso_packet[i].status = status;
++		iso_packet[i].offset = offset;
++		iso_packet[i].actual_length = actual;
++	}
++
++	iso_req->status = 0;
++	iso_req->process_buffer(ep_handle, iso_req);
++
++	return 0;
++}
++#endif /* DWC_EN_ISOC */
++
++#ifdef DWC_UTE_PER_IO
++/**
++ * Copy the contents of the extended request to the Linux usb_request's
++ * extended part and call the gadget's completion.
++ *
++ * @param pcd			Pointer to the pcd structure
++ * @param ep_handle		Void pointer to the usb_ep structure
++ * @param req_handle	Void pointer to the usb_request structure
++ * @param status		Request status returned from the portable logic
++ * @param ereq_port		Void pointer to the extended request structure
++ *						created in the the portable part that contains the
++ *						results of the processed iso packets.
++ */
++static int _xisoc_complete(dwc_otg_pcd_t * pcd, void *ep_handle,
++			   void *req_handle, int32_t status, void *ereq_port)
++{
++	struct dwc_ute_iso_req_ext *ereqorg = NULL;
++	struct dwc_iso_xreq_port *ereqport = NULL;
++	struct dwc_ute_iso_packet_descriptor *desc_org = NULL;
++	int i;
++	struct usb_request *req;
++	//struct dwc_ute_iso_packet_descriptor *
++	//int status = 0;
++
++	req = (struct usb_request *)req_handle;
++	ereqorg = &req->ext_req;
++	ereqport = (struct dwc_iso_xreq_port *)ereq_port;
++	desc_org = ereqorg->per_io_frame_descs;
++
++	if (req && req->complete) {
++		/* Copy the request data from the portable logic to our request */
++		for (i = 0; i < ereqport->pio_pkt_count; i++) {
++			desc_org[i].actual_length =
++			    ereqport->per_io_frame_descs[i].actual_length;
++			desc_org[i].status =
++			    ereqport->per_io_frame_descs[i].status;
++		}
++
++		switch (status) {
++		case -DWC_E_SHUTDOWN:
++			req->status = -ESHUTDOWN;
++			break;
++		case -DWC_E_RESTART:
++			req->status = -ECONNRESET;
++			break;
++		case -DWC_E_INVALID:
++			req->status = -EINVAL;
++			break;
++		case -DWC_E_TIMEOUT:
++			req->status = -ETIMEDOUT;
++			break;
++		default:
++			req->status = status;
++		}
++
++		/* And call the gadget's completion */
++		req->complete(ep_handle, req);
++	}
++
++	return 0;
++}
++#endif /* DWC_UTE_PER_IO */
++
++static int _complete(dwc_otg_pcd_t * pcd, void *ep_handle,
++		     void *req_handle, int32_t status, uint32_t actual)
++{
++	struct usb_request *req = (struct usb_request *)req_handle;
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27)
++	struct dwc_otg_pcd_ep *ep = NULL;
++#endif
++
++	if (req && req->complete) {
++		switch (status) {
++		case -DWC_E_SHUTDOWN:
++			req->status = -ESHUTDOWN;
++			break;
++		case -DWC_E_RESTART:
++			req->status = -ECONNRESET;
++			break;
++		case -DWC_E_INVALID:
++			req->status = -EINVAL;
++			break;
++		case -DWC_E_TIMEOUT:
++			req->status = -ETIMEDOUT;
++			break;
++		default:
++			req->status = status;
++
++		}
++
++		req->actual = actual;
++		DWC_SPINUNLOCK(pcd->lock);
++		req->complete(ep_handle, req);
++		DWC_SPINLOCK(pcd->lock);
++	}
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,27)
++	ep = ep_from_handle(pcd, ep_handle);
++	if (GET_CORE_IF(pcd)->dma_enable) {
++                if (req->length != 0) {
++                        dwc_otg_device_t *otg_dev = gadget_wrapper->pcd->otg_dev;
++                        struct device *dev = NULL;
++
++                        if (otg_dev != NULL)
++                                  dev = DWC_OTG_OS_GETDEV(otg_dev->os_dep);
++
++			dma_unmap_single(dev, req->dma, req->length,
++                                         ep->dwc_ep.is_in ?
++                                                DMA_TO_DEVICE: DMA_FROM_DEVICE);
++                }
++	}
++#endif
++
++	return 0;
++}
++
++static int _connect(dwc_otg_pcd_t * pcd, int speed)
++{
++	gadget_wrapper->gadget.speed = speed;
++	return 0;
++}
++
++static int _disconnect(dwc_otg_pcd_t * pcd)
++{
++	if (gadget_wrapper->driver && gadget_wrapper->driver->disconnect) {
++		gadget_wrapper->driver->disconnect(&gadget_wrapper->gadget);
++	}
++	return 0;
++}
++
++static int _resume(dwc_otg_pcd_t * pcd)
++{
++	if (gadget_wrapper->driver && gadget_wrapper->driver->resume) {
++		gadget_wrapper->driver->resume(&gadget_wrapper->gadget);
++	}
++
++	return 0;
++}
++
++static int _suspend(dwc_otg_pcd_t * pcd)
++{
++	if (gadget_wrapper->driver && gadget_wrapper->driver->suspend) {
++		gadget_wrapper->driver->suspend(&gadget_wrapper->gadget);
++	}
++	return 0;
++}
++
++/**
++ * This function updates the otg values in the gadget structure.
++ */
++static int _hnp_changed(dwc_otg_pcd_t * pcd)
++{
++
++	if (!gadget_wrapper->gadget.is_otg)
++		return 0;
++
++	gadget_wrapper->gadget.b_hnp_enable = get_b_hnp_enable(pcd);
++	gadget_wrapper->gadget.a_hnp_support = get_a_hnp_support(pcd);
++	gadget_wrapper->gadget.a_alt_hnp_support = get_a_alt_hnp_support(pcd);
++	return 0;
++}
++
++static int _reset(dwc_otg_pcd_t * pcd)
++{
++	return 0;
++}
++
++#ifdef DWC_UTE_CFI
++static int _cfi_setup(dwc_otg_pcd_t * pcd, void *cfi_req)
++{
++	int retval = -DWC_E_INVALID;
++	if (gadget_wrapper->driver->cfi_feature_setup) {
++		retval =
++		    gadget_wrapper->driver->
++		    cfi_feature_setup(&gadget_wrapper->gadget,
++				      (struct cfi_usb_ctrlrequest *)cfi_req);
++	}
++
++	return retval;
++}
++#endif
++
++static const struct dwc_otg_pcd_function_ops fops = {
++	.complete = _complete,
++#ifdef DWC_EN_ISOC
++	.isoc_complete = _isoc_complete,
++#endif
++	.setup = _setup,
++	.disconnect = _disconnect,
++	.connect = _connect,
++	.resume = _resume,
++	.suspend = _suspend,
++	.hnp_changed = _hnp_changed,
++	.reset = _reset,
++#ifdef DWC_UTE_CFI
++	.cfi_setup = _cfi_setup,
++#endif
++#ifdef DWC_UTE_PER_IO
++	.xisoc_complete = _xisoc_complete,
++#endif
++};
++
++/**
++ * This function is the top level PCD interrupt handler.
++ */
++static irqreturn_t dwc_otg_pcd_irq(int irq, void *dev)
++{
++	dwc_otg_pcd_t *pcd = dev;
++	int32_t retval = IRQ_NONE;
++
++	retval = dwc_otg_pcd_handle_intr(pcd);
++	if (retval != 0) {
++		S3C2410X_CLEAR_EINTPEND();
++	}
++	return IRQ_RETVAL(retval);
++}
++
++/**
++ * This function initialized the usb_ep structures to there default
++ * state.
++ *
++ * @param d Pointer on gadget_wrapper.
++ */
++void gadget_add_eps(struct gadget_wrapper *d)
++{
++	static const char *names[] = {
++
++		"ep0",
++		"ep1in",
++		"ep2in",
++		"ep3in",
++		"ep4in",
++		"ep5in",
++		"ep6in",
++		"ep7in",
++		"ep8in",
++		"ep9in",
++		"ep10in",
++		"ep11in",
++		"ep12in",
++		"ep13in",
++		"ep14in",
++		"ep15in",
++		"ep1out",
++		"ep2out",
++		"ep3out",
++		"ep4out",
++		"ep5out",
++		"ep6out",
++		"ep7out",
++		"ep8out",
++		"ep9out",
++		"ep10out",
++		"ep11out",
++		"ep12out",
++		"ep13out",
++		"ep14out",
++		"ep15out"
++	};
++
++	int i;
++	struct usb_ep *ep;
++	int8_t dev_endpoints;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s\n", __func__);
++
++	INIT_LIST_HEAD(&d->gadget.ep_list);
++	d->gadget.ep0 = &d->ep0;
++	d->gadget.speed = USB_SPEED_UNKNOWN;
++
++	INIT_LIST_HEAD(&d->gadget.ep0->ep_list);
++
++	/**
++	 * Initialize the EP0 structure.
++	 */
++	ep = &d->ep0;
++
++	/* Init the usb_ep structure. */
++	ep->name = names[0];
++	ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops;
++
++	/**
++	 * @todo NGS: What should the max packet size be set to
++	 * here?  Before EP type is set?
++	 */
++	ep->maxpacket = MAX_PACKET_SIZE;
++	dwc_otg_pcd_ep_enable(d->pcd, NULL, ep);
++
++	list_add_tail(&ep->ep_list, &d->gadget.ep_list);
++
++	/**
++	 * Initialize the EP structures.
++	 */
++	dev_endpoints = d->pcd->core_if->dev_if->num_in_eps;
++
++	for (i = 0; i < dev_endpoints; i++) {
++		ep = &d->in_ep[i];
++
++		/* Init the usb_ep structure. */
++		ep->name = names[d->pcd->in_ep[i].dwc_ep.num];
++		ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops;
++
++		/**
++		 * @todo NGS: What should the max packet size be set to
++		 * here?  Before EP type is set?
++		 */
++		ep->maxpacket = MAX_PACKET_SIZE;
++		list_add_tail(&ep->ep_list, &d->gadget.ep_list);
++	}
++
++	dev_endpoints = d->pcd->core_if->dev_if->num_out_eps;
++
++	for (i = 0; i < dev_endpoints; i++) {
++		ep = &d->out_ep[i];
++
++		/* Init the usb_ep structure. */
++		ep->name = names[15 + d->pcd->out_ep[i].dwc_ep.num];
++		ep->ops = (struct usb_ep_ops *)&dwc_otg_pcd_ep_ops;
++
++		/**
++		 * @todo NGS: What should the max packet size be set to
++		 * here?  Before EP type is set?
++		 */
++		ep->maxpacket = MAX_PACKET_SIZE;
++
++		list_add_tail(&ep->ep_list, &d->gadget.ep_list);
++	}
++
++	/* remove ep0 from the list.  There is a ep0 pointer. */
++	list_del_init(&d->ep0.ep_list);
++
++	d->ep0.maxpacket = MAX_EP0_SIZE;
++}
++
++/**
++ * This function releases the Gadget device.
++ * required by device_unregister().
++ *
++ * @todo Should this do something?	Should it free the PCD?
++ */
++static void dwc_otg_pcd_gadget_release(struct device *dev)
++{
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p)\n", __func__, dev);
++}
++
++static struct gadget_wrapper *alloc_wrapper(dwc_bus_dev_t *_dev)
++{
++	static char pcd_name[] = "dwc_otg_pcd";
++	dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
++	struct gadget_wrapper *d;
++	int retval;
++
++	d = DWC_ALLOC(sizeof(*d));
++	if (d == NULL) {
++		return NULL;
++	}
++
++	memset(d, 0, sizeof(*d));
++
++	d->gadget.name = pcd_name;
++	d->pcd = otg_dev->pcd;
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
++	strcpy(d->gadget.dev.bus_id, "gadget");
++#else
++	dev_set_name(&d->gadget.dev, "%s", "gadget");
++#endif
++
++	d->gadget.dev.parent = &_dev->dev;
++	d->gadget.dev.release = dwc_otg_pcd_gadget_release;
++	d->gadget.ops = &dwc_otg_pcd_ops;
++	d->gadget.max_speed = dwc_otg_pcd_is_dualspeed(otg_dev->pcd) ? USB_SPEED_HIGH:USB_SPEED_FULL;
++	d->gadget.is_otg = dwc_otg_pcd_is_otg(otg_dev->pcd);
++
++	d->driver = 0;
++	/* Register the gadget device */
++	retval = device_register(&d->gadget.dev);
++	if (retval != 0) {
++		DWC_ERROR("device_register failed\n");
++		DWC_FREE(d);
++		return NULL;
++	}
++
++	return d;
++}
++
++static void free_wrapper(struct gadget_wrapper *d)
++{
++	if (d->driver) {
++		/* should have been done already by driver model core */
++		DWC_WARN("driver '%s' is still registered\n",
++			 d->driver->driver.name);
++#ifdef CONFIG_USB_GADGET
++		usb_gadget_unregister_driver(d->driver);
++#endif
++	}
++
++	device_unregister(&d->gadget.dev);
++	DWC_FREE(d);
++}
++
++/**
++ * This function initialized the PCD portion of the driver.
++ *
++ */
++int pcd_init(dwc_bus_dev_t *_dev)
++{
++	dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
++	int retval = 0;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p) otg_dev=%p\n", __func__, _dev, otg_dev);
++
++	otg_dev->pcd = dwc_otg_pcd_init(otg_dev);
++
++	if (!otg_dev->pcd) {
++		DWC_ERROR("dwc_otg_pcd_init failed\n");
++		return -ENOMEM;
++	}
++
++	otg_dev->pcd->otg_dev = otg_dev;
++	gadget_wrapper = alloc_wrapper(_dev);
++
++	/*
++	 * Initialize EP structures
++	 */
++	gadget_add_eps(gadget_wrapper);
++	/*
++	 * Setup interupt handler
++	 */
++	DWC_DEBUGPL(DBG_ANY, "registering handler for irq%d\n",
++                    otg_dev->os_dep.irq_num);
++	retval = request_irq(otg_dev->os_dep.irq_num, dwc_otg_pcd_irq,
++			     IRQF_SHARED, gadget_wrapper->gadget.name,
++			     otg_dev->pcd);
++	if (retval != 0) {
++		DWC_ERROR("request of irq%d failed\n", otg_dev->os_dep.irq_num);
++		free_wrapper(gadget_wrapper);
++		return -EBUSY;
++	}
++
++	dwc_otg_pcd_start(gadget_wrapper->pcd, &fops);
++
++	return retval;
++}
++
++/**
++ * Cleanup the PCD.
++ */
++void pcd_remove(dwc_bus_dev_t *_dev)
++{
++	dwc_otg_device_t *otg_dev = DWC_OTG_BUSDRVDATA(_dev);
++	dwc_otg_pcd_t *pcd = otg_dev->pcd;
++
++	DWC_DEBUGPL(DBG_PCDV, "%s(%p) otg_dev %p\n", __func__, _dev, otg_dev);
++
++	/*
++	 * Free the IRQ
++	 */
++	free_irq(otg_dev->os_dep.irq_num, pcd);
++	dwc_otg_pcd_remove(otg_dev->pcd);
++	free_wrapper(gadget_wrapper);
++	otg_dev->pcd = 0;
++}
++
++#endif /* DWC_HOST_ONLY */
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/dwc_otg_regs.h
+@@ -0,0 +1,2550 @@
++/* ==========================================================================
++ * $File: //dwh/usb_iip/dev/software/otg/linux/drivers/dwc_otg_regs.h $
++ * $Revision: #98 $
++ * $Date: 2012/08/10 $
++ * $Change: 2047372 $
++ *
++ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
++ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
++ * otherwise expressly agreed to in writing between Synopsys and you.
++ *
++ * The Software IS NOT an item of Licensed Software or Licensed Product under
++ * any End User Software License Agreement or Agreement for Licensed Product
++ * with Synopsys or any supplement thereto. You are permitted to use and
++ * redistribute this Software in source and binary forms, with or without
++ * modification, provided that redistributions of source code must retain this
++ * notice. You may not view, use, disclose, copy or distribute this file or
++ * any information contained herein except pursuant to this license grant from
++ * Synopsys. If you do not agree with this notice, including the disclaimer
++ * below, then you are not authorized to use the Software.
++ *
++ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
++ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
++ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
++ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
++ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ * ========================================================================== */
++
++#ifndef __DWC_OTG_REGS_H__
++#define __DWC_OTG_REGS_H__
++
++#include "dwc_otg_core_if.h"
++
++/**
++ * @file
++ *
++ * This file contains the data structures for accessing the DWC_otg core registers.
++ *
++ * The application interfaces with the HS OTG core by reading from and
++ * writing to the Control and Status Register (CSR) space through the
++ * AHB Slave interface. These registers are 32 bits wide, and the
++ * addresses are 32-bit-block aligned.
++ * CSRs are classified as follows:
++ * - Core Global Registers
++ * - Device Mode Registers
++ * - Device Global Registers
++ * - Device Endpoint Specific Registers
++ * - Host Mode Registers
++ * - Host Global Registers
++ * - Host Port CSRs
++ * - Host Channel Specific Registers
++ *
++ * Only the Core Global registers can be accessed in both Device and
++ * Host modes. When the HS OTG core is operating in one mode, either
++ * Device or Host, the application must not access registers from the
++ * other mode. When the core switches from one mode to another, the
++ * registers in the new mode of operation must be reprogrammed as they
++ * would be after a power-on reset.
++ */
++
++/****************************************************************************/
++/** DWC_otg Core registers .
++ * The dwc_otg_core_global_regs structure defines the size
++ * and relative field offsets for the Core Global registers.
++ */
++typedef struct dwc_otg_core_global_regs {
++	/** OTG Control and Status Register.  <i>Offset: 000h</i> */
++	volatile uint32_t gotgctl;
++	/** OTG Interrupt Register.	 <i>Offset: 004h</i> */
++	volatile uint32_t gotgint;
++	/**Core AHB Configuration Register.	 <i>Offset: 008h</i> */
++	volatile uint32_t gahbcfg;
++
++#define DWC_GLBINTRMASK		0x0001
++#define DWC_DMAENABLE		0x0020
++#define DWC_NPTXEMPTYLVL_EMPTY	0x0080
++#define DWC_NPTXEMPTYLVL_HALFEMPTY	0x0000
++#define DWC_PTXEMPTYLVL_EMPTY	0x0100
++#define DWC_PTXEMPTYLVL_HALFEMPTY	0x0000
++
++	/**Core USB Configuration Register.	 <i>Offset: 00Ch</i> */
++	volatile uint32_t gusbcfg;
++	/**Core Reset Register.	 <i>Offset: 010h</i> */
++	volatile uint32_t grstctl;
++	/**Core Interrupt Register.	 <i>Offset: 014h</i> */
++	volatile uint32_t gintsts;
++	/**Core Interrupt Mask Register.  <i>Offset: 018h</i> */
++	volatile uint32_t gintmsk;
++	/**Receive Status Queue Read Register (Read Only).	<i>Offset: 01Ch</i> */
++	volatile uint32_t grxstsr;
++	/**Receive Status Queue Read & POP Register (Read Only).  <i>Offset: 020h</i>*/
++	volatile uint32_t grxstsp;
++	/**Receive FIFO Size Register.	<i>Offset: 024h</i> */
++	volatile uint32_t grxfsiz;
++	/**Non Periodic Transmit FIFO Size Register.  <i>Offset: 028h</i> */
++	volatile uint32_t gnptxfsiz;
++	/**Non Periodic Transmit FIFO/Queue Status Register (Read
++	 * Only). <i>Offset: 02Ch</i> */
++	volatile uint32_t gnptxsts;
++	/**I2C Access Register.	 <i>Offset: 030h</i> */
++	volatile uint32_t gi2cctl;
++	/**PHY Vendor Control Register.	 <i>Offset: 034h</i> */
++	volatile uint32_t gpvndctl;
++	/**General Purpose Input/Output Register.  <i>Offset: 038h</i> */
++	volatile uint32_t ggpio;
++	/**User ID Register.  <i>Offset: 03Ch</i> */
++	volatile uint32_t guid;
++	/**Synopsys ID Register (Read Only).  <i>Offset: 040h</i> */
++	volatile uint32_t gsnpsid;
++	/**User HW Config1 Register (Read Only).  <i>Offset: 044h</i> */
++	volatile uint32_t ghwcfg1;
++	/**User HW Config2 Register (Read Only).  <i>Offset: 048h</i> */
++	volatile uint32_t ghwcfg2;
++#define DWC_SLAVE_ONLY_ARCH 0
++#define DWC_EXT_DMA_ARCH 1
++#define DWC_INT_DMA_ARCH 2
++
++#define DWC_MODE_HNP_SRP_CAPABLE	0
++#define DWC_MODE_SRP_ONLY_CAPABLE	1
++#define DWC_MODE_NO_HNP_SRP_CAPABLE		2
++#define DWC_MODE_SRP_CAPABLE_DEVICE		3
++#define DWC_MODE_NO_SRP_CAPABLE_DEVICE	4
++#define DWC_MODE_SRP_CAPABLE_HOST	5
++#define DWC_MODE_NO_SRP_CAPABLE_HOST	6
++
++	/**User HW Config3 Register (Read Only).  <i>Offset: 04Ch</i> */
++	volatile uint32_t ghwcfg3;
++	/**User HW Config4 Register (Read Only).  <i>Offset: 050h</i>*/
++	volatile uint32_t ghwcfg4;
++	/** Core LPM Configuration register <i>Offset: 054h</i>*/
++	volatile uint32_t glpmcfg;
++	/** Global PowerDn Register <i>Offset: 058h</i> */
++	volatile uint32_t gpwrdn;
++	/** Global DFIFO SW Config Register  <i>Offset: 05Ch</i> */
++	volatile uint32_t gdfifocfg;
++	/** ADP Control Register  <i>Offset: 060h</i> */
++	volatile uint32_t adpctl;
++	/** Reserved  <i>Offset: 064h-0FFh</i> */
++	volatile uint32_t reserved39[39];
++	/** Host Periodic Transmit FIFO Size Register. <i>Offset: 100h</i> */
++	volatile uint32_t hptxfsiz;
++	/** Device Periodic Transmit FIFO#n Register if dedicated fifos are disabled,
++		otherwise Device Transmit FIFO#n Register.
++	 * <i>Offset: 104h + (FIFO_Number-1)*04h, 1 <= FIFO Number <= 15 (1<=n<=15).</i> */
++	volatile uint32_t dtxfsiz[15];
++} dwc_otg_core_global_regs_t;
++
++/**
++ * This union represents the bit fields of the Core OTG Control
++ * and Status Register (GOTGCTL).  Set the bits using the bit
++ * fields then write the <i>d32</i> value to the register.
++ */
++typedef union gotgctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned sesreqscs:1;
++		unsigned sesreq:1;
++		unsigned vbvalidoven:1;
++		unsigned vbvalidovval:1;
++		unsigned avalidoven:1;
++		unsigned avalidovval:1;
++		unsigned bvalidoven:1;
++		unsigned bvalidovval:1;
++		unsigned hstnegscs:1;
++		unsigned hnpreq:1;
++		unsigned hstsethnpen:1;
++		unsigned devhnpen:1;
++		unsigned reserved12_15:4;
++		unsigned conidsts:1;
++		unsigned dbnctime:1;
++		unsigned asesvld:1;
++		unsigned bsesvld:1;
++		unsigned otgver:1;
++		unsigned reserved1:1;
++		unsigned multvalidbc:5;
++		unsigned chirpen:1;
++		unsigned reserved28_31:4;
++	} b;
++} gotgctl_data_t;
++
++/**
++ * This union represents the bit fields of the Core OTG Interrupt Register
++ * (GOTGINT).  Set/clear the bits using the bit fields then write the <i>d32</i>
++ * value to the register.
++ */
++typedef union gotgint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Current Mode */
++		unsigned reserved0_1:2;
++
++		/** Session End Detected */
++		unsigned sesenddet:1;
++
++		unsigned reserved3_7:5;
++
++		/** Session Request Success Status Change */
++		unsigned sesreqsucstschng:1;
++		/** Host Negotiation Success Status Change */
++		unsigned hstnegsucstschng:1;
++
++		unsigned reserved10_16:7;
++
++		/** Host Negotiation Detected */
++		unsigned hstnegdet:1;
++		/** A-Device Timeout Change */
++		unsigned adevtoutchng:1;
++		/** Debounce Done */
++		unsigned debdone:1;
++		/** Multi-Valued input changed */
++		unsigned mvic:1;
++
++		unsigned reserved31_21:11;
++
++	} b;
++} gotgint_data_t;
++
++/**
++ * This union represents the bit fields of the Core AHB Configuration
++ * Register (GAHBCFG). Set/clear the bits using the bit fields then
++ * write the <i>d32</i> value to the register.
++ */
++typedef union gahbcfg_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned glblintrmsk:1;
++#define DWC_GAHBCFG_GLBINT_ENABLE		1
++
++		unsigned hburstlen:4;
++#define DWC_GAHBCFG_INT_DMA_BURST_SINGLE	0
++#define DWC_GAHBCFG_INT_DMA_BURST_INCR		1
++#define DWC_GAHBCFG_INT_DMA_BURST_INCR4		3
++#define DWC_GAHBCFG_INT_DMA_BURST_INCR8		5
++#define DWC_GAHBCFG_INT_DMA_BURST_INCR16	7
++
++		unsigned dmaenable:1;
++#define DWC_GAHBCFG_DMAENABLE			1
++		unsigned reserved:1;
++		unsigned nptxfemplvl_txfemplvl:1;
++		unsigned ptxfemplvl:1;
++#define DWC_GAHBCFG_TXFEMPTYLVL_EMPTY		1
++#define DWC_GAHBCFG_TXFEMPTYLVL_HALFEMPTY	0
++		unsigned reserved9_20:12;
++		unsigned remmemsupp:1;
++		unsigned notialldmawrit:1;
++		unsigned ahbsingle:1;
++		unsigned reserved24_31:8;
++	} b;
++} gahbcfg_data_t;
++
++/**
++ * This union represents the bit fields of the Core USB Configuration
++ * Register (GUSBCFG). Set the bits using the bit fields then write
++ * the <i>d32</i> value to the register.
++ */
++typedef union gusbcfg_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned toutcal:3;
++		unsigned phyif:1;
++		unsigned ulpi_utmi_sel:1;
++		unsigned fsintf:1;
++		unsigned physel:1;
++		unsigned ddrsel:1;
++		unsigned srpcap:1;
++		unsigned hnpcap:1;
++		unsigned usbtrdtim:4;
++		unsigned reserved1:1;
++		unsigned phylpwrclksel:1;
++		unsigned otgutmifssel:1;
++		unsigned ulpi_fsls:1;
++		unsigned ulpi_auto_res:1;
++		unsigned ulpi_clk_sus_m:1;
++		unsigned ulpi_ext_vbus_drv:1;
++		unsigned ulpi_int_vbus_indicator:1;
++		unsigned term_sel_dl_pulse:1;
++		unsigned indicator_complement:1;
++		unsigned indicator_pass_through:1;
++		unsigned ulpi_int_prot_dis:1;
++		unsigned ic_usb_cap:1;
++		unsigned ic_traffic_pull_remove:1;
++		unsigned tx_end_delay:1;
++		unsigned force_host_mode:1;
++		unsigned force_dev_mode:1;
++		unsigned reserved31:1;
++	} b;
++} gusbcfg_data_t;
++
++/**
++ * This union represents the bit fields of the Core Reset Register
++ * (GRSTCTL).  Set/clear the bits using the bit fields then write the
++ * <i>d32</i> value to the register.
++ */
++typedef union grstctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Core Soft Reset (CSftRst) (Device and Host)
++		 *
++		 * The application can flush the control logic in the
++		 * entire core using this bit. This bit resets the
++		 * pipelines in the AHB Clock domain as well as the
++		 * PHY Clock domain.
++		 *
++		 * The state machines are reset to an IDLE state, the
++		 * control bits in the CSRs are cleared, all the
++		 * transmit FIFOs and the receive FIFO are flushed.
++		 *
++		 * The status mask bits that control the generation of
++		 * the interrupt, are cleared, to clear the
++		 * interrupt. The interrupt status bits are not
++		 * cleared, so the application can get the status of
++		 * any events that occurred in the core after it has
++		 * set this bit.
++		 *
++		 * Any transactions on the AHB are terminated as soon
++		 * as possible following the protocol. Any
++		 * transactions on the USB are terminated immediately.
++		 *
++		 * The configuration settings in the CSRs are
++		 * unchanged, so the software doesn't have to
++		 * reprogram these registers (Device
++		 * Configuration/Host Configuration/Core System
++		 * Configuration/Core PHY Configuration).
++		 *
++		 * The application can write to this bit, any time it
++		 * wants to reset the core. This is a self clearing
++		 * bit and the core clears this bit after all the
++		 * necessary logic is reset in the core, which may
++		 * take several clocks, depending on the current state
++		 * of the core.
++		 */
++		unsigned csftrst:1;
++		/** Hclk Soft Reset
++		 *
++		 * The application uses this bit to reset the control logic in
++		 * the AHB clock domain. Only AHB clock domain pipelines are
++		 * reset.
++		 */
++		unsigned hsftrst:1;
++		/** Host Frame Counter Reset (Host Only)<br>
++		 *
++		 * The application can reset the (micro)frame number
++		 * counter inside the core, using this bit. When the
++		 * (micro)frame counter is reset, the subsequent SOF
++		 * sent out by the core, will have a (micro)frame
++		 * number of 0.
++		 */
++		unsigned hstfrm:1;
++		/** In Token Sequence Learning Queue Flush
++		 * (INTknQFlsh) (Device Only)
++		 */
++		unsigned intknqflsh:1;
++		/** RxFIFO Flush (RxFFlsh) (Device and Host)
++		 *
++		 * The application can flush the entire Receive FIFO
++		 * using this bit. The application must first
++		 * ensure that the core is not in the middle of a
++		 * transaction. The application should write into
++		 * this bit, only after making sure that neither the
++		 * DMA engine is reading from the RxFIFO nor the MAC
++		 * is writing the data in to the FIFO. The
++		 * application should wait until the bit is cleared
++		 * before performing any other operations. This bit
++		 * will takes 8 clocks (slowest of PHY or AHB clock)
++		 * to clear.
++		 */
++		unsigned rxfflsh:1;
++		/** TxFIFO Flush (TxFFlsh) (Device and Host).
++		 *
++		 * This bit is used to selectively flush a single or
++		 * all transmit FIFOs. The application must first
++		 * ensure that the core is not in the middle of a
++		 * transaction. The application should write into
++		 * this bit, only after making sure that neither the
++		 * DMA engine is writing into the TxFIFO nor the MAC
++		 * is reading the data out of the FIFO. The
++		 * application should wait until the core clears this
++		 * bit, before performing any operations. This bit
++		 * will takes 8 clocks (slowest of PHY or AHB clock)
++		 * to clear.
++		 */
++		unsigned txfflsh:1;
++
++		/** TxFIFO Number (TxFNum) (Device and Host).
++		 *
++		 * This is the FIFO number which needs to be flushed,
++		 * using the TxFIFO Flush bit. This field should not
++		 * be changed until the TxFIFO Flush bit is cleared by
++		 * the core.
++		 *	 - 0x0 : Non Periodic TxFIFO Flush
++		 *	 - 0x1 : Periodic TxFIFO #1 Flush in device mode
++		 *	   or Periodic TxFIFO in host mode
++		 *	 - 0x2 : Periodic TxFIFO #2 Flush in device mode.
++		 *	 - ...
++		 *	 - 0xF : Periodic TxFIFO #15 Flush in device mode
++		 *	 - 0x10: Flush all the Transmit NonPeriodic and
++		 *	   Transmit Periodic FIFOs in the core
++		 */
++		unsigned txfnum:5;
++		/** Reserved */
++		unsigned reserved11_29:19;
++		/** DMA Request Signal.	 Indicated DMA request is in
++		 * probress. Used for debug purpose. */
++		unsigned dmareq:1;
++		/** AHB Master Idle.  Indicates the AHB Master State
++		 * Machine is in IDLE condition. */
++		unsigned ahbidle:1;
++	} b;
++} grstctl_t;
++
++/**
++ * This union represents the bit fields of the Core Interrupt Mask
++ * Register (GINTMSK). Set/clear the bits using the bit fields then
++ * write the <i>d32</i> value to the register.
++ */
++typedef union gintmsk_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned reserved0:1;
++		unsigned modemismatch:1;
++		unsigned otgintr:1;
++		unsigned sofintr:1;
++		unsigned rxstsqlvl:1;
++		unsigned nptxfempty:1;
++		unsigned ginnakeff:1;
++		unsigned goutnakeff:1;
++		unsigned ulpickint:1;
++		unsigned i2cintr:1;
++		unsigned erlysuspend:1;
++		unsigned usbsuspend:1;
++		unsigned usbreset:1;
++		unsigned enumdone:1;
++		unsigned isooutdrop:1;
++		unsigned eopframe:1;
++		unsigned restoredone:1;
++		unsigned epmismatch:1;
++		unsigned inepintr:1;
++		unsigned outepintr:1;
++		unsigned incomplisoin:1;
++		unsigned incomplisoout:1;
++		unsigned fetsusp:1;
++		unsigned resetdet:1;
++		unsigned portintr:1;
++		unsigned hcintr:1;
++		unsigned ptxfempty:1;
++		unsigned lpmtranrcvd:1;
++		unsigned conidstschng:1;
++		unsigned disconnect:1;
++		unsigned sessreqintr:1;
++		unsigned wkupintr:1;
++	} b;
++} gintmsk_data_t;
++/**
++ * This union represents the bit fields of the Core Interrupt Register
++ * (GINTSTS).  Set/clear the bits using the bit fields then write the
++ * <i>d32</i> value to the register.
++ */
++typedef union gintsts_data {
++	/** raw register data */
++	uint32_t d32;
++#define DWC_SOF_INTR_MASK 0x0008
++	/** register bits */
++	struct {
++#define DWC_HOST_MODE 1
++		unsigned curmode:1;
++		unsigned modemismatch:1;
++		unsigned otgintr:1;
++		unsigned sofintr:1;
++		unsigned rxstsqlvl:1;
++		unsigned nptxfempty:1;
++		unsigned ginnakeff:1;
++		unsigned goutnakeff:1;
++		unsigned ulpickint:1;
++		unsigned i2cintr:1;
++		unsigned erlysuspend:1;
++		unsigned usbsuspend:1;
++		unsigned usbreset:1;
++		unsigned enumdone:1;
++		unsigned isooutdrop:1;
++		unsigned eopframe:1;
++		unsigned restoredone:1;
++		unsigned epmismatch:1;
++		unsigned inepint:1;
++		unsigned outepintr:1;
++		unsigned incomplisoin:1;
++		unsigned incomplisoout:1;
++		unsigned fetsusp:1;
++		unsigned resetdet:1;
++		unsigned portintr:1;
++		unsigned hcintr:1;
++		unsigned ptxfempty:1;
++		unsigned lpmtranrcvd:1;
++		unsigned conidstschng:1;
++		unsigned disconnect:1;
++		unsigned sessreqintr:1;
++		unsigned wkupintr:1;
++	} b;
++} gintsts_data_t;
++
++/**
++ * This union represents the bit fields in the Device Receive Status Read and
++ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i>
++ * element then read out the bits using the <i>b</i>it elements.
++ */
++typedef union device_grxsts_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned epnum:4;
++		unsigned bcnt:11;
++		unsigned dpid:2;
++
++#define DWC_STS_DATA_UPDT		0x2	// OUT Data Packet
++#define DWC_STS_XFER_COMP		0x3	// OUT Data Transfer Complete
++
++#define DWC_DSTS_GOUT_NAK		0x1	// Global OUT NAK
++#define DWC_DSTS_SETUP_COMP		0x4	// Setup Phase Complete
++#define DWC_DSTS_SETUP_UPDT 0x6	// SETUP Packet
++		unsigned pktsts:4;
++		unsigned fn:4;
++		unsigned reserved25_31:7;
++	} b;
++} device_grxsts_data_t;
++
++/**
++ * This union represents the bit fields in the Host Receive Status Read and
++ * Pop Registers (GRXSTSR, GRXSTSP) Read the register into the <i>d32</i>
++ * element then read out the bits using the <i>b</i>it elements.
++ */
++typedef union host_grxsts_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned chnum:4;
++		unsigned bcnt:11;
++		unsigned dpid:2;
++
++		unsigned pktsts:4;
++#define DWC_GRXSTS_PKTSTS_IN			  0x2
++#define DWC_GRXSTS_PKTSTS_IN_XFER_COMP	  0x3
++#define DWC_GRXSTS_PKTSTS_DATA_TOGGLE_ERR 0x5
++#define DWC_GRXSTS_PKTSTS_CH_HALTED		  0x7
++
++		unsigned reserved21_31:11;
++	} b;
++} host_grxsts_data_t;
++
++/**
++ * This union represents the bit fields in the FIFO Size Registers (HPTXFSIZ,
++ * GNPTXFSIZ, DPTXFSIZn, DIEPTXFn). Read the register into the <i>d32</i> element
++ * then read out the bits using the <i>b</i>it elements.
++ */
++typedef union fifosize_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned startaddr:16;
++		unsigned depth:16;
++	} b;
++} fifosize_data_t;
++
++/**
++ * This union represents the bit fields in the Non-Periodic Transmit
++ * FIFO/Queue Status Register (GNPTXSTS). Read the register into the
++ * <i>d32</i> element then read out the bits using the <i>b</i>it
++ * elements.
++ */
++typedef union gnptxsts_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned nptxfspcavail:16;
++		unsigned nptxqspcavail:8;
++		/** Top of the Non-Periodic Transmit Request Queue
++		 *	- bit 24 - Terminate (Last entry for the selected
++		 *	  channel/EP)
++		 *	- bits 26:25 - Token Type
++		 *	  - 2'b00 - IN/OUT
++		 *	  - 2'b01 - Zero Length OUT
++		 *	  - 2'b10 - PING/Complete Split
++		 *	  - 2'b11 - Channel Halt
++		 *	- bits 30:27 - Channel/EP Number
++		 */
++		unsigned nptxqtop_terminate:1;
++		unsigned nptxqtop_token:2;
++		unsigned nptxqtop_chnep:4;
++		unsigned reserved:1;
++	} b;
++} gnptxsts_data_t;
++
++/**
++ * This union represents the bit fields in the Transmit
++ * FIFO Status Register (DTXFSTS). Read the register into the
++ * <i>d32</i> element then read out the bits using the <i>b</i>it
++ * elements.
++ */
++typedef union dtxfsts_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned txfspcavail:16;
++		unsigned reserved:16;
++	} b;
++} dtxfsts_data_t;
++
++/**
++ * This union represents the bit fields in the I2C Control Register
++ * (I2CCTL). Read the register into the <i>d32</i> element then read out the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union gi2cctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned rwdata:8;
++		unsigned regaddr:8;
++		unsigned addr:7;
++		unsigned i2cen:1;
++		unsigned ack:1;
++		unsigned i2csuspctl:1;
++		unsigned i2cdevaddr:2;
++		unsigned i2cdatse0:1;
++		unsigned reserved:1;
++		unsigned rw:1;
++		unsigned bsydne:1;
++	} b;
++} gi2cctl_data_t;
++
++/**
++ * This union represents the bit fields in the PHY Vendor Control Register
++ * (GPVNDCTL). Read the register into the <i>d32</i> element then read out the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union gpvndctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned regdata:8;
++		unsigned vctrl:8;
++		unsigned regaddr16_21:6;
++		unsigned regwr:1;
++		unsigned reserved23_24:2;
++		unsigned newregreq:1;
++		unsigned vstsbsy:1;
++		unsigned vstsdone:1;
++		unsigned reserved28_30:3;
++		unsigned disulpidrvr:1;
++	} b;
++} gpvndctl_data_t;
++
++/**
++ * This union represents the bit fields in the General Purpose
++ * Input/Output Register (GGPIO).
++ * Read the register into the <i>d32</i> element then read out the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union ggpio_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned gpi:16;
++		unsigned gpo:16;
++	} b;
++} ggpio_data_t;
++
++/**
++ * This union represents the bit fields in the User ID Register
++ * (GUID). Read the register into the <i>d32</i> element then read out the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union guid_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned rwdata:32;
++	} b;
++} guid_data_t;
++
++/**
++ * This union represents the bit fields in the Synopsys ID Register
++ * (GSNPSID). Read the register into the <i>d32</i> element then read out the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union gsnpsid_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned rwdata:32;
++	} b;
++} gsnpsid_data_t;
++
++/**
++ * This union represents the bit fields in the User HW Config1
++ * Register.  Read the register into the <i>d32</i> element then read
++ * out the bits using the <i>b</i>it elements.
++ */
++typedef union hwcfg1_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned ep_dir0:2;
++		unsigned ep_dir1:2;
++		unsigned ep_dir2:2;
++		unsigned ep_dir3:2;
++		unsigned ep_dir4:2;
++		unsigned ep_dir5:2;
++		unsigned ep_dir6:2;
++		unsigned ep_dir7:2;
++		unsigned ep_dir8:2;
++		unsigned ep_dir9:2;
++		unsigned ep_dir10:2;
++		unsigned ep_dir11:2;
++		unsigned ep_dir12:2;
++		unsigned ep_dir13:2;
++		unsigned ep_dir14:2;
++		unsigned ep_dir15:2;
++	} b;
++} hwcfg1_data_t;
++
++/**
++ * This union represents the bit fields in the User HW Config2
++ * Register.  Read the register into the <i>d32</i> element then read
++ * out the bits using the <i>b</i>it elements.
++ */
++typedef union hwcfg2_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/* GHWCFG2 */
++		unsigned op_mode:3;
++#define DWC_HWCFG2_OP_MODE_HNP_SRP_CAPABLE_OTG 0
++#define DWC_HWCFG2_OP_MODE_SRP_ONLY_CAPABLE_OTG 1
++#define DWC_HWCFG2_OP_MODE_NO_HNP_SRP_CAPABLE_OTG 2
++#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_DEVICE 3
++#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_DEVICE 4
++#define DWC_HWCFG2_OP_MODE_SRP_CAPABLE_HOST 5
++#define DWC_HWCFG2_OP_MODE_NO_SRP_CAPABLE_HOST 6
++
++		unsigned architecture:2;
++		unsigned point2point:1;
++		unsigned hs_phy_type:2;
++#define DWC_HWCFG2_HS_PHY_TYPE_NOT_SUPPORTED 0
++#define DWC_HWCFG2_HS_PHY_TYPE_UTMI 1
++#define DWC_HWCFG2_HS_PHY_TYPE_ULPI 2
++#define DWC_HWCFG2_HS_PHY_TYPE_UTMI_ULPI 3
++
++		unsigned fs_phy_type:2;
++		unsigned num_dev_ep:4;
++		unsigned num_host_chan:4;
++		unsigned perio_ep_supported:1;
++		unsigned dynamic_fifo:1;
++		unsigned multi_proc_int:1;
++		unsigned reserved21:1;
++		unsigned nonperio_tx_q_depth:2;
++		unsigned host_perio_tx_q_depth:2;
++		unsigned dev_token_q_depth:5;
++		unsigned otg_enable_ic_usb:1;
++	} b;
++} hwcfg2_data_t;
++
++/**
++ * This union represents the bit fields in the User HW Config3
++ * Register.  Read the register into the <i>d32</i> element then read
++ * out the bits using the <i>b</i>it elements.
++ */
++typedef union hwcfg3_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/* GHWCFG3 */
++		unsigned xfer_size_cntr_width:4;
++		unsigned packet_size_cntr_width:3;
++		unsigned otg_func:1;
++		unsigned i2c:1;
++		unsigned vendor_ctrl_if:1;
++		unsigned optional_features:1;
++		unsigned synch_reset_type:1;
++		unsigned adp_supp:1;
++		unsigned otg_enable_hsic:1;
++		unsigned bc_support:1;
++		unsigned otg_lpm_en:1;
++		unsigned dfifo_depth:16;
++	} b;
++} hwcfg3_data_t;
++
++/**
++ * This union represents the bit fields in the User HW Config4
++ * Register.  Read the register into the <i>d32</i> element then read
++ * out the bits using the <i>b</i>it elements.
++ */
++typedef union hwcfg4_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned num_dev_perio_in_ep:4;
++		unsigned power_optimiz:1;
++		unsigned min_ahb_freq:1;
++		unsigned hiber:1;
++		unsigned xhiber:1;
++		unsigned reserved:6;
++		unsigned utmi_phy_data_width:2;
++		unsigned num_dev_mode_ctrl_ep:4;
++		unsigned iddig_filt_en:1;
++		unsigned vbus_valid_filt_en:1;
++		unsigned a_valid_filt_en:1;
++		unsigned b_valid_filt_en:1;
++		unsigned session_end_filt_en:1;
++		unsigned ded_fifo_en:1;
++		unsigned num_in_eps:4;
++		unsigned desc_dma:1;
++		unsigned desc_dma_dyn:1;
++	} b;
++} hwcfg4_data_t;
++
++/**
++ * This union represents the bit fields of the Core LPM Configuration
++ * Register (GLPMCFG). Set the bits using bit fields then write
++ * the <i>d32</i> value to the register.
++ */
++typedef union glpmctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** LPM-Capable (LPMCap) (Device and Host)
++		 * The application uses this bit to control
++		 * the DWC_otg core LPM capabilities.
++		 */
++		unsigned lpm_cap_en:1;
++		/** LPM response programmed by application (AppL1Res) (Device)
++		 * Handshake response to LPM token pre-programmed
++		 * by device application software.
++		 */
++		unsigned appl_resp:1;
++		/** Host Initiated Resume Duration (HIRD) (Device and Host)
++		 * In Host mode this field indicates the value of HIRD
++		 * to be sent in an LPM transaction.
++		 * In Device mode this field is updated with the
++		 * Received LPM Token HIRD bmAttribute
++		 * when an ACK/NYET/STALL response is sent
++		 * to an LPM transaction.
++		 */
++		unsigned hird:4;
++		/** RemoteWakeEnable (bRemoteWake) (Device and Host)
++		 * In Host mode this bit indicates the value of remote
++		 * wake up to be sent in wIndex field of LPM transaction.
++		 * In Device mode this field is updated with the
++		 * Received LPM Token bRemoteWake bmAttribute
++		 * when an ACK/NYET/STALL response is sent
++		 * to an LPM transaction.
++		 */
++		unsigned rem_wkup_en:1;
++		/** Enable utmi_sleep_n (EnblSlpM) (Device and Host)
++		 * The application uses this bit to control
++		 * the utmi_sleep_n assertion to the PHY when in L1 state.
++		 */
++		unsigned en_utmi_sleep:1;
++		/** HIRD Threshold (HIRD_Thres) (Device and Host)
++		 */
++		unsigned hird_thres:5;
++		/** LPM Response (CoreL1Res) (Device and Host)
++		 * In Host mode this bit contains handsake response to
++		 * LPM transaction.
++		 * In Device mode the response of the core to
++		 * LPM transaction received is reflected in these two bits.
++			- 0x0 : ERROR (No handshake response)
++			- 0x1 : STALL
++			- 0x2 : NYET
++			- 0x3 : ACK
++		 */
++		unsigned lpm_resp:2;
++		/** Port Sleep Status (SlpSts) (Device and Host)
++		 * This bit is set as long as a Sleep condition
++		 * is present on the USB bus.
++		 */
++		unsigned prt_sleep_sts:1;
++		/** Sleep State Resume OK (L1ResumeOK) (Device and Host)
++		 * Indicates that the application or host
++		 * can start resume from Sleep state.
++		 */
++		unsigned sleep_state_resumeok:1;
++		/** LPM channel Index (LPM_Chnl_Indx) (Host)
++		 * The channel number on which the LPM transaction
++		 * has to be applied while sending
++		 * an LPM transaction to the local device.
++		 */
++		unsigned lpm_chan_index:4;
++		/** LPM Retry Count (LPM_Retry_Cnt) (Host)
++		 * Number host retries that would be performed
++		 * if the device response was not valid response.
++		 */
++		unsigned retry_count:3;
++		/** Send LPM Transaction (SndLPM) (Host)
++		 * When set by application software,
++		 * an LPM transaction containing two tokens
++		 * is sent.
++		 */
++		unsigned send_lpm:1;
++		/** LPM Retry status (LPM_RetryCnt_Sts) (Host)
++		 * Number of LPM Host Retries still remaining
++		 * to be transmitted for the current LPM sequence
++		 */
++		unsigned retry_count_sts:3;
++		unsigned reserved28_29:2;
++		/** In host mode once this bit is set, the host
++		 * configures to drive the HSIC Idle state on the bus.
++		 * It then waits for the  device to initiate the Connect sequence.
++		 * In device mode once this bit is set, the device waits for
++		 * the HSIC Idle line state on the bus. Upon receving the Idle
++		 * line state, it initiates the HSIC Connect sequence.
++		 */
++		unsigned hsic_connect:1;
++		/** This bit overrides and functionally inverts
++		 * the if_select_hsic input port signal.
++		 */
++		unsigned inv_sel_hsic:1;
++	} b;
++} glpmcfg_data_t;
++
++/**
++ * This union represents the bit fields of the Core ADP Timer, Control and
++ * Status Register (ADPTIMCTLSTS). Set the bits using bit fields then write
++ * the <i>d32</i> value to the register.
++ */
++typedef union adpctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Probe Discharge (PRB_DSCHG)
++		 *  These bits set the times for TADP_DSCHG.
++		 *  These bits are defined as follows:
++		 *  2'b00 - 4 msec
++		 *  2'b01 - 8 msec
++		 *  2'b10 - 16 msec
++		 *  2'b11 - 32 msec
++		 */
++		unsigned prb_dschg:2;
++		/** Probe Delta (PRB_DELTA)
++		 *  These bits set the resolution for RTIM   value.
++		 *  The bits are defined in units of 32 kHz clock cycles as follows:
++		 *  2'b00  -  1 cycles
++		 *  2'b01  -  2 cycles
++		 *  2'b10 -  3 cycles
++		 *  2'b11 - 4 cycles
++		 *  For example if this value is chosen to 2'b01, it means that RTIM
++		 *  increments for every 3(three) 32Khz clock cycles.
++		 */
++		unsigned prb_delta:2;
++		/** Probe Period (PRB_PER)
++		 *  These bits sets the TADP_PRD as shown in Figure 4 as follows:
++		 *  2'b00  -  0.625 to 0.925 sec (typical 0.775 sec)
++		 *  2'b01  -  1.25 to 1.85 sec (typical 1.55 sec)
++		 *  2'b10  -  1.9 to 2.6 sec (typical 2.275 sec)
++		 *  2'b11  -  Reserved
++		 */
++		unsigned prb_per:2;
++		/** These bits capture the latest time it took for VBUS to ramp from
++		 *  VADP_SINK to VADP_PRB.
++		 *  0x000  -  1 cycles
++		 *  0x001  -  2 cycles
++		 *  0x002  -  3 cycles
++		 *  etc
++		 *  0x7FF  -  2048 cycles
++		 *  A time of 1024 cycles at 32 kHz corresponds to a time of 32 msec.
++		*/
++		unsigned rtim:11;
++		/** Enable Probe (EnaPrb)
++		 *  When programmed to 1'b1, the core performs a probe operation.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned enaprb:1;
++		/** Enable Sense (EnaSns)
++		 *  When programmed to 1'b1, the core performs a Sense operation.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned enasns:1;
++		/** ADP Reset (ADPRes)
++		 *  When set, ADP controller is reset.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adpres:1;
++		/** ADP Enable (ADPEn)
++		 *  When set, the core performs either ADP probing or sensing
++		 *  based on EnaPrb or EnaSns.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adpen:1;
++		/** ADP Probe Interrupt (ADP_PRB_INT)
++		 *  When this bit is set, it means that the VBUS
++		 *  voltage is greater than VADP_PRB or VADP_PRB is reached.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_prb_int:1;
++		/**
++		 *  ADP Sense Interrupt (ADP_SNS_INT)
++		 *  When this bit is set, it means that the VBUS voltage is greater than
++		 *  VADP_SNS value or VADP_SNS is reached.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_sns_int:1;
++		/** ADP Tomeout Interrupt (ADP_TMOUT_INT)
++		 *  This bit is relevant only for an ADP probe.
++		 *  When this bit is set, it means that the ramp time has
++		 *  completed ie ADPCTL.RTIM has reached its terminal value
++		 *  of 0x7FF.  This is a debug feature that allows software
++		 *  to read the ramp time after each cycle.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_tmout_int:1;
++		/** ADP Probe Interrupt Mask (ADP_PRB_INT_MSK)
++		 *  When this bit is set, it unmasks the interrupt due to ADP_PRB_INT.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_prb_int_msk:1;
++		/** ADP Sense Interrupt Mask (ADP_SNS_INT_MSK)
++		 *  When this bit is set, it unmasks the interrupt due to ADP_SNS_INT.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_sns_int_msk:1;
++		/** ADP Timoeout Interrupt Mask (ADP_TMOUT_MSK)
++		 *  When this bit is set, it unmasks the interrupt due to ADP_TMOUT_INT.
++		 *  This bit is valid only if OTG_Ver = 1'b1.
++		 */
++		unsigned adp_tmout_int_msk:1;
++		/** Access Request
++		 * 2'b00 - Read/Write Valid (updated by the core)
++		 * 2'b01 - Read
++		 * 2'b00 - Write
++		 * 2'b00 - Reserved
++		 */
++		unsigned ar:2;
++		 /** Reserved */
++		unsigned reserved29_31:3;
++	} b;
++} adpctl_data_t;
++
++////////////////////////////////////////////
++// Device Registers
++/**
++ * Device Global Registers. <i>Offsets 800h-BFFh</i>
++ *
++ * The following structures define the size and relative field offsets
++ * for the Device Mode Registers.
++ *
++ * <i>These registers are visible only in Device mode and must not be
++ * accessed in Host mode, as the results are unknown.</i>
++ */
++typedef struct dwc_otg_dev_global_regs {
++	/** Device Configuration Register. <i>Offset 800h</i> */
++	volatile uint32_t dcfg;
++	/** Device Control Register. <i>Offset: 804h</i> */
++	volatile uint32_t dctl;
++	/** Device Status Register (Read Only). <i>Offset: 808h</i> */
++	volatile uint32_t dsts;
++	/** Reserved. <i>Offset: 80Ch</i> */
++	uint32_t unused;
++	/** Device IN Endpoint Common Interrupt Mask
++	 * Register. <i>Offset: 810h</i> */
++	volatile uint32_t diepmsk;
++	/** Device OUT Endpoint Common Interrupt Mask
++	 * Register. <i>Offset: 814h</i> */
++	volatile uint32_t doepmsk;
++	/** Device All Endpoints Interrupt Register.  <i>Offset: 818h</i> */
++	volatile uint32_t daint;
++	/** Device All Endpoints Interrupt Mask Register.  <i>Offset:
++	 * 81Ch</i> */
++	volatile uint32_t daintmsk;
++	/** Device IN Token Queue Read Register-1 (Read Only).
++	 * <i>Offset: 820h</i> */
++	volatile uint32_t dtknqr1;
++	/** Device IN Token Queue Read Register-2 (Read Only).
++	 * <i>Offset: 824h</i> */
++	volatile uint32_t dtknqr2;
++	/** Device VBUS	 discharge Register.  <i>Offset: 828h</i> */
++	volatile uint32_t dvbusdis;
++	/** Device VBUS Pulse Register.	 <i>Offset: 82Ch</i> */
++	volatile uint32_t dvbuspulse;
++	/** Device IN Token Queue Read Register-3 (Read Only). /
++	 *	Device Thresholding control register (Read/Write)
++	 * <i>Offset: 830h</i> */
++	volatile uint32_t dtknqr3_dthrctl;
++	/** Device IN Token Queue Read Register-4 (Read Only). /
++	 *	Device IN EPs empty Inr. Mask Register (Read/Write)
++	 * <i>Offset: 834h</i> */
++	volatile uint32_t dtknqr4_fifoemptymsk;
++	/** Device Each Endpoint Interrupt Register (Read Only). /
++	 * <i>Offset: 838h</i> */
++	volatile uint32_t deachint;
++	/** Device Each Endpoint Interrupt mask Register (Read/Write). /
++	 * <i>Offset: 83Ch</i> */
++	volatile uint32_t deachintmsk;
++	/** Device Each In Endpoint Interrupt mask Register (Read/Write). /
++	 * <i>Offset: 840h</i> */
++	volatile uint32_t diepeachintmsk[MAX_EPS_CHANNELS];
++	/** Device Each Out Endpoint Interrupt mask Register (Read/Write). /
++	 * <i>Offset: 880h</i> */
++	volatile uint32_t doepeachintmsk[MAX_EPS_CHANNELS];
++} dwc_otg_device_global_regs_t;
++
++/**
++ * This union represents the bit fields in the Device Configuration
++ * Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.  Write the
++ * <i>d32</i> member to the dcfg register.
++ */
++typedef union dcfg_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Device Speed */
++		unsigned devspd:2;
++		/** Non Zero Length Status OUT Handshake */
++		unsigned nzstsouthshk:1;
++#define DWC_DCFG_SEND_STALL 1
++
++		unsigned ena32khzs:1;
++		/** Device Addresses */
++		unsigned devaddr:7;
++		/** Periodic Frame Interval */
++		unsigned perfrint:2;
++#define DWC_DCFG_FRAME_INTERVAL_80 0
++#define DWC_DCFG_FRAME_INTERVAL_85 1
++#define DWC_DCFG_FRAME_INTERVAL_90 2
++#define DWC_DCFG_FRAME_INTERVAL_95 3
++
++		/** Enable Device OUT NAK for bulk in DDMA mode */
++		unsigned endevoutnak:1;
++
++		unsigned reserved14_17:4;
++		/** In Endpoint Mis-match count */
++		unsigned epmscnt:5;
++		/** Enable Descriptor DMA in Device mode */
++		unsigned descdma:1;
++		unsigned perschintvl:2;
++		unsigned resvalid:6;
++	} b;
++} dcfg_data_t;
++
++/**
++ * This union represents the bit fields in the Device Control
++ * Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union dctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Remote Wakeup */
++		unsigned rmtwkupsig:1;
++		/** Soft Disconnect */
++		unsigned sftdiscon:1;
++		/** Global Non-Periodic IN NAK Status */
++		unsigned gnpinnaksts:1;
++		/** Global OUT NAK Status */
++		unsigned goutnaksts:1;
++		/** Test Control */
++		unsigned tstctl:3;
++		/** Set Global Non-Periodic IN NAK */
++		unsigned sgnpinnak:1;
++		/** Clear Global Non-Periodic IN NAK */
++		unsigned cgnpinnak:1;
++		/** Set Global OUT NAK */
++		unsigned sgoutnak:1;
++		/** Clear Global OUT NAK */
++		unsigned cgoutnak:1;
++		/** Power-On Programming Done */
++		unsigned pwronprgdone:1;
++		/** Reserved */
++		unsigned reserved:1;
++		/** Global Multi Count */
++		unsigned gmc:2;
++		/** Ignore Frame Number for ISOC EPs */
++		unsigned ifrmnum:1;
++		/** NAK on Babble */
++		unsigned nakonbble:1;
++		/** Enable Continue on BNA */
++		unsigned encontonbna:1;
++
++		unsigned reserved18_31:14;
++	} b;
++} dctl_data_t;
++
++/**
++ * This union represents the bit fields in the Device Status
++ * Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union dsts_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Suspend Status */
++		unsigned suspsts:1;
++		/** Enumerated Speed */
++		unsigned enumspd:2;
++#define DWC_DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ 0
++#define DWC_DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ 1
++#define DWC_DSTS_ENUMSPD_LS_PHY_6MHZ		   2
++#define DWC_DSTS_ENUMSPD_FS_PHY_48MHZ		   3
++		/** Erratic Error */
++		unsigned errticerr:1;
++		unsigned reserved4_7:4;
++		/** Frame or Microframe Number of the received SOF */
++		unsigned soffn:14;
++		unsigned reserved22_31:10;
++	} b;
++} dsts_data_t;
++
++/**
++ * This union represents the bit fields in the Device IN EP Interrupt
++ * Register and the Device IN EP Common Mask Register.
++ *
++ * - Read the register into the <i>d32</i> member then set/clear the
++ *	 bits using the <i>b</i>it elements.
++ */
++typedef union diepint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Transfer complete mask */
++		unsigned xfercompl:1;
++		/** Endpoint disable mask */
++		unsigned epdisabled:1;
++		/** AHB Error mask */
++		unsigned ahberr:1;
++		/** TimeOUT Handshake mask (non-ISOC EPs) */
++		unsigned timeout:1;
++		/** IN Token received with TxF Empty mask */
++		unsigned intktxfemp:1;
++		/** IN Token Received with EP mismatch mask */
++		unsigned intknepmis:1;
++		/** IN Endpoint NAK Effective mask */
++		unsigned inepnakeff:1;
++		/** Reserved */
++		unsigned emptyintr:1;
++
++		unsigned txfifoundrn:1;
++
++		/** BNA Interrupt mask */
++		unsigned bna:1;
++
++		unsigned reserved10_12:3;
++		/** BNA Interrupt mask */
++		unsigned nak:1;
++
++		unsigned reserved14_31:18;
++	} b;
++} diepint_data_t;
++
++/**
++ * This union represents the bit fields in the Device IN EP
++ * Common/Dedicated Interrupt Mask Register.
++ */
++typedef union diepint_data diepmsk_data_t;
++
++/**
++ * This union represents the bit fields in the Device OUT EP Interrupt
++ * Registerand Device OUT EP Common Interrupt Mask Register.
++ *
++ * - Read the register into the <i>d32</i> member then set/clear the
++ *	 bits using the <i>b</i>it elements.
++ */
++typedef union doepint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Transfer complete */
++		unsigned xfercompl:1;
++		/** Endpoint disable  */
++		unsigned epdisabled:1;
++		/** AHB Error */
++		unsigned ahberr:1;
++		/** Setup Phase Done (contorl EPs) */
++		unsigned setup:1;
++		/** OUT Token Received when Endpoint Disabled */
++		unsigned outtknepdis:1;
++
++		unsigned stsphsercvd:1;
++		/** Back-to-Back SETUP Packets Received */
++		unsigned back2backsetup:1;
++
++		unsigned reserved7:1;
++		/** OUT packet Error */
++		unsigned outpkterr:1;
++		/** BNA Interrupt */
++		unsigned bna:1;
++
++		unsigned reserved10:1;
++		/** Packet Drop Status */
++		unsigned pktdrpsts:1;
++		/** Babble Interrupt */
++		unsigned babble:1;
++		/** NAK Interrupt */
++		unsigned nak:1;
++		/** NYET Interrupt */
++		unsigned nyet:1;
++		/** Bit indicating setup packet received */
++		unsigned sr:1;
++
++		unsigned reserved16_31:16;
++	} b;
++} doepint_data_t;
++
++/**
++ * This union represents the bit fields in the Device OUT EP
++ * Common/Dedicated Interrupt Mask Register.
++ */
++typedef union doepint_data doepmsk_data_t;
++
++/**
++ * This union represents the bit fields in the Device All EP Interrupt
++ * and Mask Registers.
++ * - Read the register into the <i>d32</i> member then set/clear the
++ *	 bits using the <i>b</i>it elements.
++ */
++typedef union daint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** IN Endpoint bits */
++		unsigned in:16;
++		/** OUT Endpoint bits */
++		unsigned out:16;
++	} ep;
++	struct {
++		/** IN Endpoint bits */
++		unsigned inep0:1;
++		unsigned inep1:1;
++		unsigned inep2:1;
++		unsigned inep3:1;
++		unsigned inep4:1;
++		unsigned inep5:1;
++		unsigned inep6:1;
++		unsigned inep7:1;
++		unsigned inep8:1;
++		unsigned inep9:1;
++		unsigned inep10:1;
++		unsigned inep11:1;
++		unsigned inep12:1;
++		unsigned inep13:1;
++		unsigned inep14:1;
++		unsigned inep15:1;
++		/** OUT Endpoint bits */
++		unsigned outep0:1;
++		unsigned outep1:1;
++		unsigned outep2:1;
++		unsigned outep3:1;
++		unsigned outep4:1;
++		unsigned outep5:1;
++		unsigned outep6:1;
++		unsigned outep7:1;
++		unsigned outep8:1;
++		unsigned outep9:1;
++		unsigned outep10:1;
++		unsigned outep11:1;
++		unsigned outep12:1;
++		unsigned outep13:1;
++		unsigned outep14:1;
++		unsigned outep15:1;
++	} b;
++} daint_data_t;
++
++/**
++ * This union represents the bit fields in the Device IN Token Queue
++ * Read Registers.
++ * - Read the register into the <i>d32</i> member.
++ * - READ-ONLY Register
++ */
++typedef union dtknq1_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** In Token Queue Write Pointer */
++		unsigned intknwptr:5;
++		/** Reserved */
++		unsigned reserved05_06:2;
++		/** write pointer has wrapped. */
++		unsigned wrap_bit:1;
++		/** EP Numbers of IN Tokens 0 ... 4 */
++		unsigned epnums0_5:24;
++	} b;
++} dtknq1_data_t;
++
++/**
++ * This union represents Threshold control Register
++ * - Read and write the register into the <i>d32</i> member.
++ * - READ-WRITABLE Register
++ */
++typedef union dthrctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** non ISO Tx Thr. Enable */
++		unsigned non_iso_thr_en:1;
++		/** ISO Tx Thr. Enable */
++		unsigned iso_thr_en:1;
++		/** Tx Thr. Length */
++		unsigned tx_thr_len:9;
++		/** AHB Threshold ratio */
++		unsigned ahb_thr_ratio:2;
++		/** Reserved */
++		unsigned reserved13_15:3;
++		/** Rx Thr. Enable */
++		unsigned rx_thr_en:1;
++		/** Rx Thr. Length */
++		unsigned rx_thr_len:9;
++		unsigned reserved26:1;
++		/** Arbiter Parking Enable*/
++		unsigned arbprken:1;
++		/** Reserved */
++		unsigned reserved28_31:4;
++	} b;
++} dthrctl_data_t;
++
++/**
++ * Device Logical IN Endpoint-Specific Registers. <i>Offsets
++ * 900h-AFCh</i>
++ *
++ * There will be one set of endpoint registers per logical endpoint
++ * implemented.
++ *
++ * <i>These registers are visible only in Device mode and must not be
++ * accessed in Host mode, as the results are unknown.</i>
++ */
++typedef struct dwc_otg_dev_in_ep_regs {
++	/** Device IN Endpoint Control Register. <i>Offset:900h +
++	 * (ep_num * 20h) + 00h</i> */
++	volatile uint32_t diepctl;
++	/** Reserved. <i>Offset:900h + (ep_num * 20h) + 04h</i> */
++	uint32_t reserved04;
++	/** Device IN Endpoint Interrupt Register. <i>Offset:900h +
++	 * (ep_num * 20h) + 08h</i> */
++	volatile uint32_t diepint;
++	/** Reserved. <i>Offset:900h + (ep_num * 20h) + 0Ch</i> */
++	uint32_t reserved0C;
++	/** Device IN Endpoint Transfer Size
++	 * Register. <i>Offset:900h + (ep_num * 20h) + 10h</i> */
++	volatile uint32_t dieptsiz;
++	/** Device IN Endpoint DMA Address Register. <i>Offset:900h +
++	 * (ep_num * 20h) + 14h</i> */
++	volatile uint32_t diepdma;
++	/** Device IN Endpoint Transmit FIFO Status Register. <i>Offset:900h +
++	 * (ep_num * 20h) + 18h</i> */
++	volatile uint32_t dtxfsts;
++	/** Device IN Endpoint DMA Buffer Register. <i>Offset:900h +
++	 * (ep_num * 20h) + 1Ch</i> */
++	volatile uint32_t diepdmab;
++} dwc_otg_dev_in_ep_regs_t;
++
++/**
++ * Device Logical OUT Endpoint-Specific Registers. <i>Offsets:
++ * B00h-CFCh</i>
++ *
++ * There will be one set of endpoint registers per logical endpoint
++ * implemented.
++ *
++ * <i>These registers are visible only in Device mode and must not be
++ * accessed in Host mode, as the results are unknown.</i>
++ */
++typedef struct dwc_otg_dev_out_ep_regs {
++	/** Device OUT Endpoint Control Register. <i>Offset:B00h +
++	 * (ep_num * 20h) + 00h</i> */
++	volatile uint32_t doepctl;
++	/** Reserved. <i>Offset:B00h + (ep_num * 20h) + 04h</i> */
++	uint32_t reserved04;
++	/** Device OUT Endpoint Interrupt Register. <i>Offset:B00h +
++	 * (ep_num * 20h) + 08h</i> */
++	volatile uint32_t doepint;
++	/** Reserved. <i>Offset:B00h + (ep_num * 20h) + 0Ch</i> */
++	uint32_t reserved0C;
++	/** Device OUT Endpoint Transfer Size Register. <i>Offset:
++	 * B00h + (ep_num * 20h) + 10h</i> */
++	volatile uint32_t doeptsiz;
++	/** Device OUT Endpoint DMA Address Register. <i>Offset:B00h
++	 * + (ep_num * 20h) + 14h</i> */
++	volatile uint32_t doepdma;
++	/** Reserved. <i>Offset:B00h + 	 * (ep_num * 20h) + 18h</i> */
++	uint32_t unused;
++	/** Device OUT Endpoint DMA Buffer Register. <i>Offset:B00h
++	 * + (ep_num * 20h) + 1Ch</i> */
++	uint32_t doepdmab;
++} dwc_otg_dev_out_ep_regs_t;
++
++/**
++ * This union represents the bit fields in the Device EP Control
++ * Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union depctl_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Maximum Packet Size
++		 * IN/OUT EPn
++		 * IN/OUT EP0 - 2 bits
++		 *	 2'b00: 64 Bytes
++		 *	 2'b01: 32
++		 *	 2'b10: 16
++		 *	 2'b11: 8 */
++		unsigned mps:11;
++#define DWC_DEP0CTL_MPS_64	 0
++#define DWC_DEP0CTL_MPS_32	 1
++#define DWC_DEP0CTL_MPS_16	 2
++#define DWC_DEP0CTL_MPS_8	 3
++
++		/** Next Endpoint
++		 * IN EPn/IN EP0
++		 * OUT EPn/OUT EP0 - reserved */
++		unsigned nextep:4;
++
++		/** USB Active Endpoint */
++		unsigned usbactep:1;
++
++		/** Endpoint DPID (INTR/Bulk IN and OUT endpoints)
++		 * This field contains the PID of the packet going to
++		 * be received or transmitted on this endpoint. The
++		 * application should program the PID of the first
++		 * packet going to be received or transmitted on this
++		 * endpoint , after the endpoint is
++		 * activated. Application use the SetD1PID and
++		 * SetD0PID fields of this register to program either
++		 * D0 or D1 PID.
++		 *
++		 * The encoding for this field is
++		 *	 - 0: D0
++		 *	 - 1: D1
++		 */
++		unsigned dpid:1;
++
++		/** NAK Status */
++		unsigned naksts:1;
++
++		/** Endpoint Type
++		 *	2'b00: Control
++		 *	2'b01: Isochronous
++		 *	2'b10: Bulk
++		 *	2'b11: Interrupt */
++		unsigned eptype:2;
++
++		/** Snoop Mode
++		 * OUT EPn/OUT EP0
++		 * IN EPn/IN EP0 - reserved */
++		unsigned snp:1;
++
++		/** Stall Handshake */
++		unsigned stall:1;
++
++		/** Tx Fifo Number
++		 * IN EPn/IN EP0
++		 * OUT EPn/OUT EP0 - reserved */
++		unsigned txfnum:4;
++
++		/** Clear NAK */
++		unsigned cnak:1;
++		/** Set NAK */
++		unsigned snak:1;
++		/** Set DATA0 PID (INTR/Bulk IN and OUT endpoints)
++		 * Writing to this field sets the Endpoint DPID (DPID)
++		 * field in this register to DATA0. Set Even
++		 * (micro)frame (SetEvenFr) (ISO IN and OUT Endpoints)
++		 * Writing to this field sets the Even/Odd
++		 * (micro)frame (EO_FrNum) field to even (micro)
++		 * frame.
++		 */
++		unsigned setd0pid:1;
++		/** Set DATA1 PID (INTR/Bulk IN and OUT endpoints)
++		 * Writing to this field sets the Endpoint DPID (DPID)
++		 * field in this register to DATA1 Set Odd
++		 * (micro)frame (SetOddFr) (ISO IN and OUT Endpoints)
++		 * Writing to this field sets the Even/Odd
++		 * (micro)frame (EO_FrNum) field to odd (micro) frame.
++		 */
++		unsigned setd1pid:1;
++
++		/** Endpoint Disable */
++		unsigned epdis:1;
++		/** Endpoint Enable */
++		unsigned epena:1;
++	} b;
++} depctl_data_t;
++
++/**
++ * This union represents the bit fields in the Device EP Transfer
++ * Size Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union deptsiz_data {
++		/** raw register data */
++	uint32_t d32;
++		/** register bits */
++	struct {
++		/** Transfer size */
++		unsigned xfersize:19;
++/** Max packet count for EP (pow(2,10)-1) */
++#define MAX_PKT_CNT 1023
++		/** Packet Count */
++		unsigned pktcnt:10;
++		/** Multi Count - Periodic IN endpoints */
++		unsigned mc:2;
++		unsigned reserved:1;
++	} b;
++} deptsiz_data_t;
++
++/**
++ * This union represents the bit fields in the Device EP 0 Transfer
++ * Size Register.  Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union deptsiz0_data {
++		/** raw register data */
++	uint32_t d32;
++		/** register bits */
++	struct {
++		/** Transfer size */
++		unsigned xfersize:7;
++				/** Reserved */
++		unsigned reserved7_18:12;
++		/** Packet Count */
++		unsigned pktcnt:2;
++				/** Reserved */
++		unsigned reserved21_28:8;
++				/**Setup Packet Count (DOEPTSIZ0 Only) */
++		unsigned supcnt:2;
++		unsigned reserved31;
++	} b;
++} deptsiz0_data_t;
++
++/////////////////////////////////////////////////
++// DMA Descriptor Specific Structures
++//
++
++/** Buffer status definitions */
++
++#define BS_HOST_READY	0x0
++#define BS_DMA_BUSY		0x1
++#define BS_DMA_DONE		0x2
++#define BS_HOST_BUSY	0x3
++
++/** Receive/Transmit status definitions */
++
++#define RTS_SUCCESS		0x0
++#define RTS_BUFFLUSH	0x1
++#define RTS_RESERVED	0x2
++#define RTS_BUFERR		0x3
++
++/**
++ * This union represents the bit fields in the DMA Descriptor
++ * status quadlet. Read the quadlet into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it, <i>b_iso_out</i> and
++ * <i>b_iso_in</i> elements.
++ */
++typedef union dev_dma_desc_sts {
++		/** raw register data */
++	uint32_t d32;
++		/** quadlet bits */
++	struct {
++		/** Received number of bytes */
++		unsigned bytes:16;
++		/** NAK bit - only for OUT EPs */
++		unsigned nak:1;
++		unsigned reserved17_22:6;
++		/** Multiple Transfer - only for OUT EPs */
++		unsigned mtrf:1;
++		/** Setup Packet received - only for OUT EPs */
++		unsigned sr:1;
++		/** Interrupt On Complete */
++		unsigned ioc:1;
++		/** Short Packet */
++		unsigned sp:1;
++		/** Last */
++		unsigned l:1;
++		/** Receive Status */
++		unsigned sts:2;
++		/** Buffer Status */
++		unsigned bs:2;
++	} b;
++
++//#ifdef DWC_EN_ISOC
++		/** iso out quadlet bits */
++	struct {
++		/** Received number of bytes */
++		unsigned rxbytes:11;
++
++		unsigned reserved11:1;
++		/** Frame Number */
++		unsigned framenum:11;
++		/** Received ISO Data PID */
++		unsigned pid:2;
++		/** Interrupt On Complete */
++		unsigned ioc:1;
++		/** Short Packet */
++		unsigned sp:1;
++		/** Last */
++		unsigned l:1;
++		/** Receive Status */
++		unsigned rxsts:2;
++		/** Buffer Status */
++		unsigned bs:2;
++	} b_iso_out;
++
++		/** iso in quadlet bits */
++	struct {
++		/** Transmited number of bytes */
++		unsigned txbytes:12;
++		/** Frame Number */
++		unsigned framenum:11;
++		/** Transmited ISO Data PID */
++		unsigned pid:2;
++		/** Interrupt On Complete */
++		unsigned ioc:1;
++		/** Short Packet */
++		unsigned sp:1;
++		/** Last */
++		unsigned l:1;
++		/** Transmit Status */
++		unsigned txsts:2;
++		/** Buffer Status */
++		unsigned bs:2;
++	} b_iso_in;
++//#endif                                /* DWC_EN_ISOC */
++} dev_dma_desc_sts_t;
++
++/**
++ * DMA Descriptor structure
++ *
++ * DMA Descriptor structure contains two quadlets:
++ * Status quadlet and Data buffer pointer.
++ */
++typedef struct dwc_otg_dev_dma_desc {
++	/** DMA Descriptor status quadlet */
++	dev_dma_desc_sts_t status;
++	/** DMA Descriptor data buffer pointer */
++	uint32_t buf;
++} dwc_otg_dev_dma_desc_t;
++
++/**
++ * The dwc_otg_dev_if structure contains information needed to manage
++ * the DWC_otg controller acting in device mode. It represents the
++ * programming view of the device-specific aspects of the controller.
++ */
++typedef struct dwc_otg_dev_if {
++	/** Pointer to device Global registers.
++	 * Device Global Registers starting at offset 800h
++	 */
++	dwc_otg_device_global_regs_t *dev_global_regs;
++#define DWC_DEV_GLOBAL_REG_OFFSET 0x800
++
++	/**
++	 * Device Logical IN Endpoint-Specific Registers 900h-AFCh
++	 */
++	dwc_otg_dev_in_ep_regs_t *in_ep_regs[MAX_EPS_CHANNELS];
++#define DWC_DEV_IN_EP_REG_OFFSET 0x900
++#define DWC_EP_REG_OFFSET 0x20
++
++	/** Device Logical OUT Endpoint-Specific Registers B00h-CFCh */
++	dwc_otg_dev_out_ep_regs_t *out_ep_regs[MAX_EPS_CHANNELS];
++#define DWC_DEV_OUT_EP_REG_OFFSET 0xB00
++
++	/* Device configuration information */
++	uint8_t speed;				 /**< Device Speed	0: Unknown, 1: LS, 2:FS, 3: HS */
++	uint8_t num_in_eps;		 /**< Number # of Tx EP range: 0-15 exept ep0 */
++	uint8_t num_out_eps;		 /**< Number # of Rx EP range: 0-15 exept ep 0*/
++
++	/** Size of periodic FIFOs (Bytes) */
++	uint16_t perio_tx_fifo_size[MAX_PERIO_FIFOS];
++
++	/** Size of Tx FIFOs (Bytes) */
++	uint16_t tx_fifo_size[MAX_TX_FIFOS];
++
++	/** Thresholding enable flags and length varaiables **/
++	uint16_t rx_thr_en;
++	uint16_t iso_tx_thr_en;
++	uint16_t non_iso_tx_thr_en;
++
++	uint16_t rx_thr_length;
++	uint16_t tx_thr_length;
++
++	/**
++	 * Pointers to the DMA Descriptors for EP0 Control
++	 * transfers (virtual and physical)
++	 */
++
++	/** 2 descriptors for SETUP packets */
++	dwc_dma_t dma_setup_desc_addr[2];
++	dwc_otg_dev_dma_desc_t *setup_desc_addr[2];
++
++	/** Pointer to Descriptor with latest SETUP packet */
++	dwc_otg_dev_dma_desc_t *psetup;
++
++	/** Index of current SETUP handler descriptor */
++	uint32_t setup_desc_index;
++
++	/** Descriptor for Data In or Status In phases */
++	dwc_dma_t dma_in_desc_addr;
++	dwc_otg_dev_dma_desc_t *in_desc_addr;
++
++	/** Descriptor for Data Out or Status Out phases */
++	dwc_dma_t dma_out_desc_addr;
++	dwc_otg_dev_dma_desc_t *out_desc_addr;
++
++	/** Setup Packet Detected - if set clear NAK when queueing */
++	uint32_t spd;
++	/** Isoc ep pointer on which incomplete happens */
++	void *isoc_ep;
++
++} dwc_otg_dev_if_t;
++
++/////////////////////////////////////////////////
++// Host Mode Register Structures
++//
++/**
++ * The Host Global Registers structure defines the size and relative
++ * field offsets for the Host Mode Global Registers.  Host Global
++ * Registers offsets 400h-7FFh.
++*/
++typedef struct dwc_otg_host_global_regs {
++	/** Host Configuration Register.   <i>Offset: 400h</i> */
++	volatile uint32_t hcfg;
++	/** Host Frame Interval Register.	<i>Offset: 404h</i> */
++	volatile uint32_t hfir;
++	/** Host Frame Number / Frame Remaining Register. <i>Offset: 408h</i> */
++	volatile uint32_t hfnum;
++	/** Reserved.	<i>Offset: 40Ch</i> */
++	uint32_t reserved40C;
++	/** Host Periodic Transmit FIFO/ Queue Status Register. <i>Offset: 410h</i> */
++	volatile uint32_t hptxsts;
++	/** Host All Channels Interrupt Register. <i>Offset: 414h</i> */
++	volatile uint32_t haint;
++	/** Host All Channels Interrupt Mask Register. <i>Offset: 418h</i> */
++	volatile uint32_t haintmsk;
++	/** Host Frame List Base Address Register . <i>Offset: 41Ch</i> */
++	volatile uint32_t hflbaddr;
++} dwc_otg_host_global_regs_t;
++
++/**
++ * This union represents the bit fields in the Host Configuration Register.
++ * Read the register into the <i>d32</i> member then set/clear the bits using
++ * the <i>b</i>it elements. Write the <i>d32</i> member to the hcfg register.
++ */
++typedef union hcfg_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** FS/LS Phy Clock Select */
++		unsigned fslspclksel:2;
++#define DWC_HCFG_30_60_MHZ 0
++#define DWC_HCFG_48_MHZ	   1
++#define DWC_HCFG_6_MHZ	   2
++
++		/** FS/LS Only Support */
++		unsigned fslssupp:1;
++		unsigned reserved3_6:4;
++		/** Enable 32-KHz Suspend Mode */
++		unsigned ena32khzs:1;
++		/** Resume Validation Periiod */
++		unsigned resvalid:8;
++		unsigned reserved16_22:7;
++		/** Enable Scatter/gather DMA in Host mode */
++		unsigned descdma:1;
++		/** Frame List Entries */
++		unsigned frlisten:2;
++		/** Enable Periodic Scheduling */
++		unsigned perschedena:1;
++		unsigned reserved27_30:4;
++		unsigned modechtimen:1;
++	} b;
++} hcfg_data_t;
++
++/**
++ * This union represents the bit fields in the Host Frame Remaing/Number
++ * Register.
++ */
++typedef union hfir_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		unsigned frint:16;
++		unsigned hfirrldctrl:1;
++		unsigned reserved:15;
++	} b;
++} hfir_data_t;
++
++/**
++ * This union represents the bit fields in the Host Frame Remaing/Number
++ * Register.
++ */
++typedef union hfnum_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		unsigned frnum:16;
++#define DWC_HFNUM_MAX_FRNUM 0x3FFF
++		unsigned frrem:16;
++	} b;
++} hfnum_data_t;
++
++typedef union hptxsts_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		unsigned ptxfspcavail:16;
++		unsigned ptxqspcavail:8;
++		/** Top of the Periodic Transmit Request Queue
++		 *	- bit 24 - Terminate (last entry for the selected channel)
++		 *	- bits 26:25 - Token Type
++		 *	  - 2'b00 - Zero length
++		 *	  - 2'b01 - Ping
++		 *	  - 2'b10 - Disable
++		 *	- bits 30:27 - Channel Number
++		 *	- bit 31 - Odd/even microframe
++		 */
++		unsigned ptxqtop_terminate:1;
++		unsigned ptxqtop_token:2;
++		unsigned ptxqtop_chnum:4;
++		unsigned ptxqtop_odd:1;
++	} b;
++} hptxsts_data_t;
++
++/**
++ * This union represents the bit fields in the Host Port Control and Status
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
++ * hprt0 register.
++ */
++typedef union hprt0_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned prtconnsts:1;
++		unsigned prtconndet:1;
++		unsigned prtena:1;
++		unsigned prtenchng:1;
++		unsigned prtovrcurract:1;
++		unsigned prtovrcurrchng:1;
++		unsigned prtres:1;
++		unsigned prtsusp:1;
++		unsigned prtrst:1;
++		unsigned reserved9:1;
++		unsigned prtlnsts:2;
++		unsigned prtpwr:1;
++		unsigned prttstctl:4;
++		unsigned prtspd:2;
++#define DWC_HPRT0_PRTSPD_HIGH_SPEED 0
++#define DWC_HPRT0_PRTSPD_FULL_SPEED 1
++#define DWC_HPRT0_PRTSPD_LOW_SPEED	2
++		unsigned reserved19_31:13;
++	} b;
++} hprt0_data_t;
++
++/**
++ * This union represents the bit fields in the Host All Interrupt
++ * Register.
++ */
++typedef union haint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned ch0:1;
++		unsigned ch1:1;
++		unsigned ch2:1;
++		unsigned ch3:1;
++		unsigned ch4:1;
++		unsigned ch5:1;
++		unsigned ch6:1;
++		unsigned ch7:1;
++		unsigned ch8:1;
++		unsigned ch9:1;
++		unsigned ch10:1;
++		unsigned ch11:1;
++		unsigned ch12:1;
++		unsigned ch13:1;
++		unsigned ch14:1;
++		unsigned ch15:1;
++		unsigned reserved:16;
++	} b;
++
++	struct {
++		unsigned chint:16;
++		unsigned reserved:16;
++	} b2;
++} haint_data_t;
++
++/**
++ * This union represents the bit fields in the Host All Interrupt
++ * Register.
++ */
++typedef union haintmsk_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned ch0:1;
++		unsigned ch1:1;
++		unsigned ch2:1;
++		unsigned ch3:1;
++		unsigned ch4:1;
++		unsigned ch5:1;
++		unsigned ch6:1;
++		unsigned ch7:1;
++		unsigned ch8:1;
++		unsigned ch9:1;
++		unsigned ch10:1;
++		unsigned ch11:1;
++		unsigned ch12:1;
++		unsigned ch13:1;
++		unsigned ch14:1;
++		unsigned ch15:1;
++		unsigned reserved:16;
++	} b;
++
++	struct {
++		unsigned chint:16;
++		unsigned reserved:16;
++	} b2;
++} haintmsk_data_t;
++
++/**
++ * Host Channel Specific Registers. <i>500h-5FCh</i>
++ */
++typedef struct dwc_otg_hc_regs {
++	/** Host Channel 0 Characteristic Register. <i>Offset: 500h + (chan_num * 20h) + 00h</i> */
++	volatile uint32_t hcchar;
++	/** Host Channel 0 Split Control Register. <i>Offset: 500h + (chan_num * 20h) + 04h</i> */
++	volatile uint32_t hcsplt;
++	/** Host Channel 0 Interrupt Register. <i>Offset: 500h + (chan_num * 20h) + 08h</i> */
++	volatile uint32_t hcint;
++	/** Host Channel 0 Interrupt Mask Register. <i>Offset: 500h + (chan_num * 20h) + 0Ch</i> */
++	volatile uint32_t hcintmsk;
++	/** Host Channel 0 Transfer Size Register. <i>Offset: 500h + (chan_num * 20h) + 10h</i> */
++	volatile uint32_t hctsiz;
++	/** Host Channel 0 DMA Address Register. <i>Offset: 500h + (chan_num * 20h) + 14h</i> */
++	volatile uint32_t hcdma;
++	volatile uint32_t reserved;
++	/** Host Channel 0 DMA Buffer Address Register. <i>Offset: 500h + (chan_num * 20h) + 1Ch</i> */
++	volatile uint32_t hcdmab;
++} dwc_otg_hc_regs_t;
++
++/**
++ * This union represents the bit fields in the Host Channel Characteristics
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
++ * hcchar register.
++ */
++typedef union hcchar_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** Maximum packet size in bytes */
++		unsigned mps:11;
++
++		/** Endpoint number */
++		unsigned epnum:4;
++
++		/** 0: OUT, 1: IN */
++		unsigned epdir:1;
++
++		unsigned reserved:1;
++
++		/** 0: Full/high speed device, 1: Low speed device */
++		unsigned lspddev:1;
++
++		/** 0: Control, 1: Isoc, 2: Bulk, 3: Intr */
++		unsigned eptype:2;
++
++		/** Packets per frame for periodic transfers. 0 is reserved. */
++		unsigned multicnt:2;
++
++		/** Device address */
++		unsigned devaddr:7;
++
++		/**
++		 * Frame to transmit periodic transaction.
++		 * 0: even, 1: odd
++		 */
++		unsigned oddfrm:1;
++
++		/** Channel disable */
++		unsigned chdis:1;
++
++		/** Channel enable */
++		unsigned chen:1;
++	} b;
++} hcchar_data_t;
++
++typedef union hcsplt_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** Port Address */
++		unsigned prtaddr:7;
++
++		/** Hub Address */
++		unsigned hubaddr:7;
++
++		/** Transaction Position */
++		unsigned xactpos:2;
++#define DWC_HCSPLIT_XACTPOS_MID 0
++#define DWC_HCSPLIT_XACTPOS_END 1
++#define DWC_HCSPLIT_XACTPOS_BEGIN 2
++#define DWC_HCSPLIT_XACTPOS_ALL 3
++
++		/** Do Complete Split */
++		unsigned compsplt:1;
++
++		/** Reserved */
++		unsigned reserved:14;
++
++		/** Split Enble */
++		unsigned spltena:1;
++	} b;
++} hcsplt_data_t;
++
++/**
++ * This union represents the bit fields in the Host All Interrupt
++ * Register.
++ */
++typedef union hcint_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** Transfer Complete */
++		unsigned xfercomp:1;
++		/** Channel Halted */
++		unsigned chhltd:1;
++		/** AHB Error */
++		unsigned ahberr:1;
++		/** STALL Response Received */
++		unsigned stall:1;
++		/** NAK Response Received */
++		unsigned nak:1;
++		/** ACK Response Received */
++		unsigned ack:1;
++		/** NYET Response Received */
++		unsigned nyet:1;
++		/** Transaction Err */
++		unsigned xacterr:1;
++		/** Babble Error */
++		unsigned bblerr:1;
++		/** Frame Overrun */
++		unsigned frmovrun:1;
++		/** Data Toggle Error */
++		unsigned datatglerr:1;
++		/** Buffer Not Available (only for DDMA mode) */
++		unsigned bna:1;
++		/** Exessive transaction error (only for DDMA mode) */
++		unsigned xcs_xact:1;
++		/** Frame List Rollover interrupt */
++		unsigned frm_list_roll:1;
++		/** Reserved */
++		unsigned reserved14_31:18;
++	} b;
++} hcint_data_t;
++
++/**
++ * This union represents the bit fields in the Host Channel Interrupt Mask
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
++ * hcintmsk register.
++ */
++typedef union hcintmsk_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		unsigned xfercompl:1;
++		unsigned chhltd:1;
++		unsigned ahberr:1;
++		unsigned stall:1;
++		unsigned nak:1;
++		unsigned ack:1;
++		unsigned nyet:1;
++		unsigned xacterr:1;
++		unsigned bblerr:1;
++		unsigned frmovrun:1;
++		unsigned datatglerr:1;
++		unsigned bna:1;
++		unsigned xcs_xact:1;
++		unsigned frm_list_roll:1;
++		unsigned reserved14_31:18;
++	} b;
++} hcintmsk_data_t;
++
++/**
++ * This union represents the bit fields in the Host Channel Transfer Size
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements. Write the <i>d32</i> member to the
++ * hcchar register.
++ */
++
++typedef union hctsiz_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** Total transfer size in bytes */
++		unsigned xfersize:19;
++
++		/** Data packets to transfer */
++		unsigned pktcnt:10;
++
++		/**
++		 * Packet ID for next data packet
++		 * 0: DATA0
++		 * 1: DATA2
++		 * 2: DATA1
++		 * 3: MDATA (non-Control), SETUP (Control)
++		 */
++		unsigned pid:2;
++#define DWC_HCTSIZ_DATA0 0
++#define DWC_HCTSIZ_DATA1 2
++#define DWC_HCTSIZ_DATA2 1
++#define DWC_HCTSIZ_MDATA 3
++#define DWC_HCTSIZ_SETUP 3
++
++		/** Do PING protocol when 1 */
++		unsigned dopng:1;
++	} b;
++
++	/** register bits */
++	struct {
++		/** Scheduling information */
++		unsigned schinfo:8;
++
++		/** Number of transfer descriptors.
++		 * Max value:
++		 * 64 in general,
++		 * 256 only for HS isochronous endpoint.
++		 */
++		unsigned ntd:8;
++
++		/** Data packets to transfer */
++		unsigned reserved16_28:13;
++
++		/**
++		 * Packet ID for next data packet
++		 * 0: DATA0
++		 * 1: DATA2
++		 * 2: DATA1
++		 * 3: MDATA (non-Control)
++		 */
++		unsigned pid:2;
++
++		/** Do PING protocol when 1 */
++		unsigned dopng:1;
++	} b_ddma;
++} hctsiz_data_t;
++
++/**
++ * This union represents the bit fields in the Host DMA Address
++ * Register used in Descriptor DMA mode.
++ */
++typedef union hcdma_data {
++	/** raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		unsigned reserved0_2:3;
++		/** Current Transfer Descriptor. Not used for ISOC */
++		unsigned ctd:8;
++		/** Start Address of Descriptor List */
++		unsigned dma_addr:21;
++	} b;
++} hcdma_data_t;
++
++/**
++ * This union represents the bit fields in the DMA Descriptor
++ * status quadlet for host mode. Read the quadlet into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union host_dma_desc_sts {
++	/** raw register data */
++	uint32_t d32;
++	/** quadlet bits */
++
++	/* for non-isochronous  */
++	struct {
++		/** Number of bytes */
++		unsigned n_bytes:17;
++		/** QTD offset to jump when Short Packet received - only for IN EPs */
++		unsigned qtd_offset:6;
++		/**
++		 * Set to request the core to jump to alternate QTD if
++		 * Short Packet received - only for IN EPs
++		 */
++		unsigned a_qtd:1;
++		 /**
++		  * Setup Packet bit. When set indicates that buffer contains
++		  * setup packet.
++		  */
++		unsigned sup:1;
++		/** Interrupt On Complete */
++		unsigned ioc:1;
++		/** End of List */
++		unsigned eol:1;
++		unsigned reserved27:1;
++		/** Rx/Tx Status */
++		unsigned sts:2;
++#define DMA_DESC_STS_PKTERR	1
++		unsigned reserved30:1;
++		/** Active Bit */
++		unsigned a:1;
++	} b;
++	/* for isochronous */
++	struct {
++		/** Number of bytes */
++		unsigned n_bytes:12;
++		unsigned reserved12_24:13;
++		/** Interrupt On Complete */
++		unsigned ioc:1;
++		unsigned reserved26_27:2;
++		/** Rx/Tx Status */
++		unsigned sts:2;
++		unsigned reserved30:1;
++		/** Active Bit */
++		unsigned a:1;
++	} b_isoc;
++} host_dma_desc_sts_t;
++
++#define	MAX_DMA_DESC_SIZE		131071
++#define MAX_DMA_DESC_NUM_GENERIC	64
++#define MAX_DMA_DESC_NUM_HS_ISOC	256
++#define MAX_FRLIST_EN_NUM		64
++/**
++ * Host-mode DMA Descriptor structure
++ *
++ * DMA Descriptor structure contains two quadlets:
++ * Status quadlet and Data buffer pointer.
++ */
++typedef struct dwc_otg_host_dma_desc {
++	/** DMA Descriptor status quadlet */
++	host_dma_desc_sts_t status;
++	/** DMA Descriptor data buffer pointer */
++	uint32_t buf;
++} dwc_otg_host_dma_desc_t;
++
++/** OTG Host Interface Structure.
++ *
++ * The OTG Host Interface Structure structure contains information
++ * needed to manage the DWC_otg controller acting in host mode. It
++ * represents the programming view of the host-specific aspects of the
++ * controller.
++ */
++typedef struct dwc_otg_host_if {
++	/** Host Global Registers starting at offset 400h.*/
++	dwc_otg_host_global_regs_t *host_global_regs;
++#define DWC_OTG_HOST_GLOBAL_REG_OFFSET 0x400
++
++	/** Host Port 0 Control and Status Register */
++	volatile uint32_t *hprt0;
++#define DWC_OTG_HOST_PORT_REGS_OFFSET 0x440
++
++	/** Host Channel Specific Registers at offsets 500h-5FCh. */
++	dwc_otg_hc_regs_t *hc_regs[MAX_EPS_CHANNELS];
++#define DWC_OTG_HOST_CHAN_REGS_OFFSET 0x500
++#define DWC_OTG_CHAN_REGS_OFFSET 0x20
++
++	/* Host configuration information */
++	/** Number of Host Channels (range: 1-16) */
++	uint8_t num_host_channels;
++	/** Periodic EPs supported (0: no, 1: yes) */
++	uint8_t perio_eps_supported;
++	/** Periodic Tx FIFO Size (Only 1 host periodic Tx FIFO) */
++	uint16_t perio_tx_fifo_size;
++
++} dwc_otg_host_if_t;
++
++/**
++ * This union represents the bit fields in the Power and Clock Gating Control
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union pcgcctl_data {
++	/** raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** Stop Pclk */
++		unsigned stoppclk:1;
++		/** Gate Hclk */
++		unsigned gatehclk:1;
++		/** Power Clamp */
++		unsigned pwrclmp:1;
++		/** Reset Power Down Modules */
++		unsigned rstpdwnmodule:1;
++		/** Reserved */
++		unsigned reserved:1;
++		/** Enable Sleep Clock Gating (Enbl_L1Gating) */
++		unsigned enbl_sleep_gating:1;
++		/** PHY In Sleep (PhySleep) */
++		unsigned phy_in_sleep:1;
++		/** Deep Sleep*/
++		unsigned deep_sleep:1;
++		unsigned resetaftsusp:1;
++		unsigned restoremode:1;
++		unsigned enbl_extnd_hiber:1;
++		unsigned extnd_hiber_pwrclmp:1;
++		unsigned extnd_hiber_switch:1;
++		unsigned ess_reg_restored:1;
++		unsigned prt_clk_sel:2;
++		unsigned port_power:1;
++		unsigned max_xcvrselect:2;
++		unsigned max_termsel:1;
++		unsigned mac_dev_addr:7;
++		unsigned p2hd_dev_enum_spd:2;
++		unsigned p2hd_prt_spd:2;
++		unsigned if_dev_mode:1;
++	} b;
++} pcgcctl_data_t;
++
++/**
++ * This union represents the bit fields in the Global Data FIFO Software
++ * Configuration Register. Read the register into the <i>d32</i> member then
++ * set/clear the bits using the <i>b</i>it elements.
++ */
++typedef union gdfifocfg_data {
++	/* raw register data */
++	uint32_t d32;
++	/** register bits */
++	struct {
++		/** OTG Data FIFO depth */
++		unsigned gdfifocfg:16;
++		/** Start address of EP info controller */
++		unsigned epinfobase:16;
++	} b;
++} gdfifocfg_data_t;
++
++/**
++ * This union represents the bit fields in the Global Power Down Register
++ * Register. Read the register into the <i>d32</i> member then set/clear the
++ * bits using the <i>b</i>it elements.
++ */
++typedef union gpwrdn_data {
++	/* raw register data */
++	uint32_t d32;
++
++	/** register bits */
++	struct {
++		/** PMU Interrupt Select */
++		unsigned pmuintsel:1;
++		/** PMU Active */
++		unsigned pmuactv:1;
++		/** Restore */
++		unsigned restore:1;
++		/** Power Down Clamp */
++		unsigned pwrdnclmp:1;
++		/** Power Down Reset */
++		unsigned pwrdnrstn:1;
++		/** Power Down Switch */
++		unsigned pwrdnswtch:1;
++		/** Disable VBUS */
++		unsigned dis_vbus:1;
++		/** Line State Change */
++		unsigned lnstschng:1;
++		/** Line state change mask */
++		unsigned lnstchng_msk:1;
++		/** Reset Detected */
++		unsigned rst_det:1;
++		/** Reset Detect mask */
++		unsigned rst_det_msk:1;
++		/** Disconnect Detected */
++		unsigned disconn_det:1;
++		/** Disconnect Detect mask */
++		unsigned disconn_det_msk:1;
++		/** Connect Detected*/
++		unsigned connect_det:1;
++		/** Connect Detected Mask*/
++		unsigned connect_det_msk:1;
++		/** SRP Detected */
++		unsigned srp_det:1;
++		/** SRP Detect mask */
++		unsigned srp_det_msk:1;
++		/** Status Change Interrupt */
++		unsigned sts_chngint:1;
++		/** Status Change Interrupt Mask */
++		unsigned sts_chngint_msk:1;
++		/** Line State */
++		unsigned linestate:2;
++		/** Indicates current mode(status of IDDIG signal) */
++		unsigned idsts:1;
++		/** B Session Valid signal status*/
++		unsigned bsessvld:1;
++		/** ADP Event Detected */
++		unsigned adp_int:1;
++		/** Multi Valued ID pin */
++		unsigned mult_val_id_bc:5;
++		/** Reserved 24_31 */
++		unsigned reserved29_31:3;
++	} b;
++} gpwrdn_data_t;
++
++#endif
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/test/Makefile
+@@ -0,0 +1,16 @@
++
++PERL=/usr/bin/perl
++PL_TESTS=test_sysfs.pl test_mod_param.pl
++
++.PHONY : test
++test : perl_tests
++
++perl_tests :
++	@echo
++	@echo Running perl tests
++	@for test in $(PL_TESTS); do \
++	  if $(PERL) ./$$test ; then \
++	    echo "=======> $$test, PASSED" ; \
++	  else echo "=======> $$test, FAILED" ; \
++	  fi \
++	done
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/test/dwc_otg_test.pm
+@@ -0,0 +1,337 @@
++package dwc_otg_test;
++
++use strict;
++use Exporter ();
++
++use vars qw(@ISA @EXPORT
++$sysfsdir $paramdir $errors $params
++);
++
++@ISA = qw(Exporter);
++
++#
++# Globals
++#
++$sysfsdir = "/sys/devices/lm0";
++$paramdir = "/sys/module/dwc_otg";
++$errors = 0;
++
++$params = [
++	   {
++	    NAME => "otg_cap",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 2
++	   },
++	   {
++	    NAME => "dma_enable",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "dma_burst_size",
++	    DEFAULT => 32,
++	    ENUM => [1, 4, 8, 16, 32, 64, 128, 256],
++	    LOW => 1,
++	    HIGH => 256
++	   },
++	   {
++	    NAME => "host_speed",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "host_support_fs_ls_low_power",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "host_ls_low_power_phy_clk",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "dev_speed",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "enable_dynamic_fifo",
++	    DEFAULT => 1,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	   {
++	    NAME => "data_fifo_size",
++	    DEFAULT => 8192,
++	    ENUM => [],
++	    LOW => 32,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "dev_rx_fifo_size",
++	    DEFAULT => 1064,
++	    ENUM => [],
++	    LOW => 16,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "dev_nperio_tx_fifo_size",
++	    DEFAULT => 1024,
++	    ENUM => [],
++	    LOW => 16,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_1",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_2",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_3",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_4",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_5",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_6",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_7",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_8",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_9",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_10",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_11",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_12",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_13",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_14",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "dev_perio_tx_fifo_size_15",
++	    DEFAULT => 256,
++	    ENUM => [],
++	    LOW => 4,
++	    HIGH => 768
++	   },
++	   {
++	    NAME => "host_rx_fifo_size",
++	    DEFAULT => 1024,
++	    ENUM => [],
++	    LOW => 16,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "host_nperio_tx_fifo_size",
++	    DEFAULT => 1024,
++	    ENUM => [],
++	    LOW => 16,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "host_perio_tx_fifo_size",
++	    DEFAULT => 1024,
++	    ENUM => [],
++	    LOW => 16,
++	    HIGH => 32768
++	   },
++	   {
++	    NAME => "max_transfer_size",
++	    DEFAULT => 65535,
++	    ENUM => [],
++	    LOW => 2047,
++	    HIGH => 65535
++	   },
++	   {
++	    NAME => "max_packet_count",
++	    DEFAULT => 511,
++	    ENUM => [],
++	    LOW => 15,
++	    HIGH => 511
++	   },
++	   {
++	    NAME => "host_channels",
++	    DEFAULT => 12,
++	    ENUM => [],
++	    LOW => 1,
++	    HIGH => 16
++	   },
++	   {
++	    NAME => "dev_endpoints",
++	    DEFAULT => 6,
++	    ENUM => [],
++	    LOW => 1,
++	    HIGH => 15
++	   },
++	   {
++	    NAME => "phy_type",
++	    DEFAULT => 1,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 2
++	   },
++	   {
++	    NAME => "phy_utmi_width",
++	    DEFAULT => 16,
++	    ENUM => [8, 16],
++	    LOW => 8,
++	    HIGH => 16
++	   },
++	   {
++	    NAME => "phy_ulpi_ddr",
++	    DEFAULT => 0,
++	    ENUM => [],
++	    LOW => 0,
++	    HIGH => 1
++	   },
++	  ];
++
++
++#
++#
++sub check_arch {
++  $_ = `uname -m`;
++  chomp;
++  unless (m/armv4tl/) {
++    warn "# \n# Can't execute on $_.  Run on integrator platform.\n# \n";
++    return 0;
++  }
++  return 1;
++}
++
++#
++#
++sub load_module {
++  my $params = shift;
++  print "\nRemoving Module\n";
++  system "rmmod dwc_otg";
++  print "Loading Module\n";
++  if ($params ne "") {
++    print "Module Parameters: $params\n";
++  }
++  if (system("modprobe dwc_otg $params")) {
++    warn "Unable to load module\n";
++    return 0;
++  }
++  return 1;
++}
++
++#
++#
++sub test_status {
++  my $arg = shift;
++
++  print "\n";
++
++  if (defined $arg) {
++    warn "WARNING: $arg\n";
++  }
++
++  if ($errors > 0) {
++    warn "TEST FAILED with $errors errors\n";
++    return 0;
++  } else {
++    print "TEST PASSED\n";
++    return 0 if (defined $arg);
++  }
++  return 1;
++}
++
++#
++#
++@EXPORT = qw(
++$sysfsdir
++$paramdir
++$params
++$errors
++check_arch
++load_module
++test_status
++);
++
++1;
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/test/test_mod_param.pl
+@@ -0,0 +1,133 @@
++#!/usr/bin/perl -w
++#
++# Run this program on the integrator.
++#
++# - Tests module parameter default values.
++# - Tests setting of valid module parameter values via modprobe.
++# - Tests invalid module parameter values.
++# -----------------------------------------------------------------------------
++use strict;
++use dwc_otg_test;
++
++check_arch() or die;
++
++#
++#
++sub test {
++  my ($param,$expected) = @_;
++  my $value = get($param);
++
++  if ($value == $expected) {
++    print "$param = $value, okay\n";
++  }
++
++  else {
++    warn "ERROR: value of $param != $expected, $value\n";
++    $errors ++;
++  }
++}
++
++#
++#
++sub get {
++  my $param = shift;
++  my $tmp = `cat $paramdir/$param`;
++  chomp $tmp;
++  return $tmp;
++}
++
++#
++#
++sub test_main {
++
++  print "\nTesting Module Parameters\n";
++
++  load_module("") or die;
++
++  # Test initial values
++  print "\nTesting Default Values\n";
++  foreach (@{$params}) {
++    test ($_->{NAME}, $_->{DEFAULT});
++  }
++
++  # Test low value
++  print "\nTesting Low Value\n";
++  my $cmd_params = "";
++  foreach (@{$params}) {
++    $cmd_params = $cmd_params . "$_->{NAME}=$_->{LOW} ";
++  }
++  load_module($cmd_params) or die;
++
++  foreach (@{$params}) {
++    test ($_->{NAME}, $_->{LOW});
++  }
++
++  # Test high value
++  print "\nTesting High Value\n";
++  $cmd_params = "";
++  foreach (@{$params}) {
++    $cmd_params = $cmd_params . "$_->{NAME}=$_->{HIGH} ";
++  }
++  load_module($cmd_params) or die;
++
++  foreach (@{$params}) {
++    test ($_->{NAME}, $_->{HIGH});
++  }
++
++  # Test Enum
++  print "\nTesting Enumerated\n";
++  foreach (@{$params}) {
++    if (defined $_->{ENUM}) {
++      my $value;
++      foreach $value (@{$_->{ENUM}}) {
++	$cmd_params = "$_->{NAME}=$value";
++	load_module($cmd_params) or die;
++	test ($_->{NAME}, $value);
++      }
++    }
++  }
++
++  # Test Invalid Values
++  print "\nTesting Invalid Values\n";
++  $cmd_params = "";
++  foreach (@{$params}) {
++    $cmd_params = $cmd_params . sprintf "$_->{NAME}=%d ", $_->{LOW}-1;
++  }
++  load_module($cmd_params) or die;
++
++  foreach (@{$params}) {
++    test ($_->{NAME}, $_->{DEFAULT});
++  }
++
++  $cmd_params = "";
++  foreach (@{$params}) {
++    $cmd_params = $cmd_params . sprintf "$_->{NAME}=%d ", $_->{HIGH}+1;
++  }
++  load_module($cmd_params) or die;
++
++  foreach (@{$params}) {
++    test ($_->{NAME}, $_->{DEFAULT});
++  }
++
++  print "\nTesting Enumerated\n";
++  foreach (@{$params}) {
++    if (defined $_->{ENUM}) {
++      my $value;
++      foreach $value (@{$_->{ENUM}}) {
++	$value = $value + 1;
++	$cmd_params = "$_->{NAME}=$value";
++	load_module($cmd_params) or die;
++	test ($_->{NAME}, $_->{DEFAULT});
++	$value = $value - 2;
++	$cmd_params = "$_->{NAME}=$value";
++	load_module($cmd_params) or die;
++	test ($_->{NAME}, $_->{DEFAULT});
++      }
++    }
++  }
++
++  test_status() or die;
++}
++
++test_main();
++0;
+--- /dev/null
++++ b/drivers/usb/host/dwc_otg/test/test_sysfs.pl
+@@ -0,0 +1,193 @@
++#!/usr/bin/perl -w
++#
++# Run this program on the integrator
++# - Tests select sysfs attributes.
++# - Todo ... test more attributes, hnp/srp, buspower/bussuspend, etc.
++# -----------------------------------------------------------------------------
++use strict;
++use dwc_otg_test;
++
++check_arch() or die;
++
++#
++#
++sub test {
++  my ($attr,$expected) = @_;
++  my $string = get($attr);
++
++  if ($string eq $expected) {
++    printf("$attr = $string, okay\n");
++  }
++  else {
++    warn "ERROR: value of $attr != $expected, $string\n";
++    $errors ++;
++  }
++}
++
++#
++#
++sub set {
++  my ($reg, $value) = @_;
++  system "echo $value > $sysfsdir/$reg";
++}
++
++#
++#
++sub get {
++  my $attr = shift;
++  my $string = `cat $sysfsdir/$attr`;
++  chomp $string;
++  if ($string =~ m/\s\=\s/) {
++    my $tmp;
++    ($tmp, $string) = split /\s=\s/, $string;
++  }
++  return $string;
++}
++
++#
++#
++sub test_main {
++  print("\nTesting Sysfs Attributes\n");
++
++  load_module("") or die;
++
++  # Test initial values of regoffset/regvalue/guid/gsnpsid
++  print("\nTesting Default Values\n");
++
++  test("regoffset", "0xffffffff");
++  test("regvalue", "invalid offset");
++  test("guid", "0x12345678");	# this will fail if it has been changed
++  test("gsnpsid", "0x4f54200a");
++
++  # Test operation of regoffset/regvalue
++  print("\nTesting regoffset\n");
++  set('regoffset', '5a5a5a5a');
++  test("regoffset", "0xffffffff");
++
++  set('regoffset', '0');
++  test("regoffset", "0x00000000");
++
++  set('regoffset', '40000');
++  test("regoffset", "0x00000000");
++
++  set('regoffset', '3ffff');
++  test("regoffset", "0x0003ffff");
++
++  set('regoffset', '1');
++  test("regoffset", "0x00000001");
++
++  print("\nTesting regvalue\n");
++  set('regoffset', '3c');
++  test("regvalue", "0x12345678");
++  set('regvalue', '5a5a5a5a');
++  test("regvalue", "0x5a5a5a5a");
++  set('regvalue','a5a5a5a5');
++  test("regvalue", "0xa5a5a5a5");
++  set('guid','12345678');
++
++  # Test HNP Capable
++  print("\nTesting HNP Capable bit\n");
++  set('hnpcapable', '1');
++  test("hnpcapable", "0x1");
++  set('hnpcapable','0');
++  test("hnpcapable", "0x0");
++
++  set('regoffset','0c');
++
++  my $old = get('gusbcfg');
++  print("setting hnpcapable\n");
++  set('hnpcapable', '1');
++  test("hnpcapable", "0x1");
++  test('gusbcfg', sprintf "0x%08x", (oct ($old) | (1<<9)));
++  test('regvalue', sprintf "0x%08x", (oct ($old) | (1<<9)));
++
++  $old = get('gusbcfg');
++  print("clearing hnpcapable\n");
++  set('hnpcapable', '0');
++  test("hnpcapable", "0x0");
++  test ('gusbcfg', sprintf "0x%08x", oct ($old) & (~(1<<9)));
++  test ('regvalue', sprintf "0x%08x", oct ($old) & (~(1<<9)));
++
++  # Test SRP Capable
++  print("\nTesting SRP Capable bit\n");
++  set('srpcapable', '1');
++  test("srpcapable", "0x1");
++  set('srpcapable','0');
++  test("srpcapable", "0x0");
++
++  set('regoffset','0c');
++
++  $old = get('gusbcfg');
++  print("setting srpcapable\n");
++  set('srpcapable', '1');
++  test("srpcapable", "0x1");
++  test('gusbcfg', sprintf "0x%08x", (oct ($old) | (1<<8)));
++  test('regvalue', sprintf "0x%08x", (oct ($old) | (1<<8)));
++
++  $old = get('gusbcfg');
++  print("clearing srpcapable\n");
++  set('srpcapable', '0');
++  test("srpcapable", "0x0");
++  test('gusbcfg', sprintf "0x%08x", oct ($old) & (~(1<<8)));
++  test('regvalue', sprintf "0x%08x", oct ($old) & (~(1<<8)));
++
++  # Test GGPIO
++  print("\nTesting GGPIO\n");
++  set('ggpio','5a5a5a5a');
++  test('ggpio','0x5a5a0000');
++  set('ggpio','a5a5a5a5');
++  test('ggpio','0xa5a50000');
++  set('ggpio','11110000');
++  test('ggpio','0x11110000');
++  set('ggpio','00001111');
++  test('ggpio','0x00000000');
++
++  # Test DEVSPEED
++  print("\nTesting DEVSPEED\n");
++  set('regoffset','800');
++  $old = get('regvalue');
++  set('devspeed','0');
++  test('devspeed','0x0');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3)));
++  set('devspeed','1');
++  test('devspeed','0x1');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 1));
++  set('devspeed','2');
++  test('devspeed','0x2');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 2));
++  set('devspeed','3');
++  test('devspeed','0x3');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 3));
++  set('devspeed','4');
++  test('devspeed','0x0');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3)));
++  set('devspeed','5');
++  test('devspeed','0x1');
++  test('regvalue',sprintf("0x%08x", oct($old) & ~(0x3) | 1));
++
++
++  #  mode	Returns the current mode:0 for device mode1 for host mode	Read
++  #  hnp	Initiate the Host Negotiation Protocol.  Read returns the status.	Read/Write
++  #  srp	Initiate the Session Request Protocol.  Read returns the status.	Read/Write
++  #  buspower	Get or Set the Power State of the bus (0 - Off or 1 - On) 	Read/Write
++  #  bussuspend	Suspend the USB bus.	Read/Write
++  #  busconnected	Get the connection status of the bus 	Read
++
++  #  gotgctl	Get or set the Core Control Status Register.	Read/Write
++  ##  gusbcfg	Get or set the Core USB Configuration Register	Read/Write
++  #  grxfsiz	Get or set the Receive FIFO Size Register	Read/Write
++  #  gnptxfsiz	Get or set the non-periodic Transmit Size Register	Read/Write
++  #  gpvndctl	Get or set the PHY Vendor Control Register	Read/Write
++  ##  ggpio	Get the value in the lower 16-bits of the General Purpose IO Register or Set the upper 16 bits.	Read/Write
++  ##  guid	Get or set the value of the User ID Register	Read/Write
++  ##  gsnpsid	Get the value of the Synopsys ID Regester	Read
++  ##  devspeed	Get or set the device speed setting in the DCFG register	Read/Write
++  #  enumspeed	Gets the device enumeration Speed.	Read
++  #  hptxfsiz	Get the value of the Host Periodic Transmit FIFO	Read
++  #  hprt0	Get or Set the value in the Host Port Control and Status Register	Read/Write
++
++  test_status("TEST NYI") or die;
++}
++
++test_main();
++0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0041-bcm2708-framebuffer-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0041-bcm2708-framebuffer-driver.patch
new file mode 100644
index 0000000000..d14de59384
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0041-bcm2708-framebuffer-driver.patch
@@ -0,0 +1,3559 @@
+From 96f18d88062c3fe5754ab031fb5bde7686f6a510 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 17 Jun 2015 17:06:34 +0100
+Subject: [PATCH] bcm2708 framebuffer driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+bcm2708_fb : Implement blanking support using the mailbox property interface
+
+bcm2708_fb: Add pan and vsync controls
+
+bcm2708_fb: DMA acceleration for fb_copyarea
+
+Based on http://www.raspberrypi.org/phpBB3/viewtopic.php?p=62425#p62425
+Also used Simon's dmaer_master module as a reference for tweaking DMA
+settings for better performance.
+
+For now busylooping only. IRQ support might be added later.
+With non-overclocked Raspberry Pi, the performance is ~360 MB/s
+for simple copy or ~260 MB/s for two-pass copy (used when dragging
+windows to the right).
+
+In the case of using DMA channel 0, the performance improves
+to ~440 MB/s.
+
+For comparison, VFP optimized CPU copy can only do ~114 MB/s in
+the same conditions (hindered by reading uncached source buffer).
+
+Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
+
+bcm2708_fb: report number of dma copies
+
+Add a counter (exported via debugfs) reporting the
+number of dma copies that the framebuffer driver
+has done, in order to help evaluate different
+optimization strategies.
+
+Signed-off-by: Luke Diamand <luked@broadcom.com>
+
+bcm2708_fb: use IRQ for DMA copies
+
+The copyarea ioctl() uses DMA to speed things along. This
+was busy-waiting for completion. This change supports using
+an interrupt instead for larger transfers. For small
+transfers, busy-waiting is still likely to be faster.
+
+Signed-off-by: Luke Diamand <luke@diamand.org>
+
+bcm2708: Make ioctl logging quieter
+
+video: fbdev: bcm2708_fb: Don't panic on error
+
+No need to panic the kernel if the video driver fails.
+Just print a message and return an error.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+fbdev: bcm2708_fb: Add ARCH_BCM2835 support
+
+Add Device Tree support.
+Pass the device to dma_alloc_coherent() in order to get the
+correct bus address on ARCH_BCM2835.
+Use the new DMA legacy API header file.
+Including <mach/platform.h> is not necessary.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270x_DT: Add bcm2708-fb device
+
+Add bcm2708-fb to Device Tree and don't add the
+platform device when booting in DT mode.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+Cleanup of bcm2708_fb file to kernel coding standards
+
+Some minor change to function - remove a use of
+in_atomic, plus replacing various debug messages
+that manually specify the function name with
+("%s",.__func__)
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+
+video: bcm2708_fb: Try allocating on the ARM and passing to VPU
+
+Currently the VPU allocates the contiguous buffer for the
+framebuffer.
+Try an alternate path first where we use dma_alloc_coherent
+and pass the buffer to the VPU. Should the VPU firmware not
+support that path, then free the buffer and revert to the
+old behaviour of using the VPU allocation.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/video/fbdev/Kconfig                |   14 +
+ drivers/video/fbdev/Makefile               |    1 +
+ drivers/video/fbdev/bcm2708_fb.c           |  920 ++++++++
+ drivers/video/logo/logo_linux_clut224.ppm  | 2483 +++++++-------------
+ include/soc/bcm2835/raspberrypi-firmware.h |    1 +
+ 5 files changed, 1817 insertions(+), 1602 deletions(-)
+ create mode 100644 drivers/video/fbdev/bcm2708_fb.c
+
+--- a/drivers/video/fbdev/Kconfig
++++ b/drivers/video/fbdev/Kconfig
+@@ -219,6 +219,20 @@ config FB_TILEBLITTING
+ comment "Frame buffer hardware drivers"
+ 	depends on FB
+ 
++config FB_BCM2708
++	tristate "BCM2708 framebuffer support"
++	depends on FB && RASPBERRYPI_FIRMWARE
++	select FB_CFB_FILLRECT
++	select FB_CFB_COPYAREA
++	select FB_CFB_IMAGEBLIT
++	help
++	  This framebuffer device driver is for the BCM2708 framebuffer.
++
++	  If you want to compile this as a module (=code which can be
++	  inserted into and removed from the running kernel), say M
++	  here and read <file:Documentation/kbuild/modules.txt>.  The module
++	  will be called bcm2708_fb.
++
+ config FB_GRVGA
+ 	tristate "Aeroflex Gaisler framebuffer support"
+ 	depends on FB && SPARC
+--- a/drivers/video/fbdev/Makefile
++++ b/drivers/video/fbdev/Makefile
+@@ -11,6 +11,7 @@ obj-$(CONFIG_FB_MACMODES)      += macmod
+ obj-$(CONFIG_FB_WMT_GE_ROPS)   += wmt_ge_rops.o
+ 
+ # Hardware specific drivers go first
++obj-$(CONFIG_FB_BCM2708)	  += bcm2708_fb.o
+ obj-$(CONFIG_FB_AMIGA)            += amifb.o c2p_planar.o
+ obj-$(CONFIG_FB_ARC)              += arcfb.o
+ obj-$(CONFIG_FB_CLPS711X)	  += clps711x-fb.o
+--- /dev/null
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -0,0 +1,920 @@
++/*
++ *  linux/drivers/video/bcm2708_fb.c
++ *
++ * Copyright (C) 2010 Broadcom
++ *
++ * This file is subject to the terms and conditions of the GNU General Public
++ * License.  See the file COPYING in the main directory of this archive
++ * for more details.
++ *
++ * Broadcom simple framebuffer driver
++ *
++ * This file is derived from cirrusfb.c
++ * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
++ *
++ */
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/slab.h>
++#include <linux/mm.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/ioport.h>
++#include <linux/list.h>
++#include <linux/platform_data/dma-bcm2708.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/printk.h>
++#include <linux/console.h>
++#include <linux/debugfs.h>
++#include <linux/io.h>
++#include <linux/dma-mapping.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++//#define BCM2708_FB_DEBUG
++#define MODULE_NAME "bcm2708_fb"
++
++#ifdef BCM2708_FB_DEBUG
++#define print_debug(fmt, ...) pr_debug("%s:%s:%d: " fmt, \
++			MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
++#else
++#define print_debug(fmt, ...)
++#endif
++
++/* This is limited to 16 characters when displayed by X startup */
++static const char *bcm2708_name = "BCM2708 FB";
++
++#define DRIVER_NAME "bcm2708_fb"
++
++static int fbwidth = 800;	/* module parameter */
++static int fbheight = 480;	/* module parameter */
++static int fbdepth = 32;	/* module parameter */
++static int fbswap;		/* module parameter */
++
++static u32 dma_busy_wait_threshold = 1 << 15;
++module_param(dma_busy_wait_threshold, int, 0644);
++MODULE_PARM_DESC(dma_busy_wait_threshold, "Busy-wait for DMA completion below this area");
++
++struct fb_alloc_tags {
++	struct rpi_firmware_property_tag_header tag1;
++	u32 xres, yres;
++	struct rpi_firmware_property_tag_header tag2;
++	u32 xres_virtual, yres_virtual;
++	struct rpi_firmware_property_tag_header tag3;
++	u32 bpp;
++	struct rpi_firmware_property_tag_header tag4;
++	u32 xoffset, yoffset;
++	struct rpi_firmware_property_tag_header tag5;
++	u32 base, screen_size;
++	struct rpi_firmware_property_tag_header tag6;
++	u32 pitch;
++};
++
++struct bcm2708_fb_stats {
++	struct debugfs_regset32 regset;
++	u32 dma_copies;
++	u32 dma_irqs;
++};
++
++struct bcm2708_fb {
++	struct fb_info fb;
++	struct platform_device *dev;
++	struct rpi_firmware *fw;
++	u32 cmap[16];
++	u32 gpu_cmap[256];
++	int dma_chan;
++	int dma_irq;
++	void __iomem *dma_chan_base;
++	void *cb_base;		/* DMA control blocks */
++	dma_addr_t cb_handle;
++	struct dentry *debugfs_dir;
++	wait_queue_head_t dma_waitq;
++	struct bcm2708_fb_stats stats;
++	unsigned long fb_bus_address;
++	bool disable_arm_alloc;
++	unsigned int image_size;
++	dma_addr_t dma_addr;
++	void *cpuaddr;
++};
++
++#define to_bcm2708(info)	container_of(info, struct bcm2708_fb, fb)
++
++static void bcm2708_fb_debugfs_deinit(struct bcm2708_fb *fb)
++{
++	debugfs_remove_recursive(fb->debugfs_dir);
++	fb->debugfs_dir = NULL;
++}
++
++static int bcm2708_fb_debugfs_init(struct bcm2708_fb *fb)
++{
++	static struct debugfs_reg32 stats_registers[] = {
++		{
++			"dma_copies",
++			offsetof(struct bcm2708_fb_stats, dma_copies)
++		},
++		{
++			"dma_irqs",
++			offsetof(struct bcm2708_fb_stats, dma_irqs)
++		},
++	};
++
++	fb->debugfs_dir = debugfs_create_dir(DRIVER_NAME, NULL);
++	if (!fb->debugfs_dir) {
++		pr_warn("%s: could not create debugfs entry\n",
++			__func__);
++		return -EFAULT;
++	}
++
++	fb->stats.regset.regs = stats_registers;
++	fb->stats.regset.nregs = ARRAY_SIZE(stats_registers);
++	fb->stats.regset.base = &fb->stats;
++
++	debugfs_create_regset32("stats", 0444, fb->debugfs_dir,
++				&fb->stats.regset);
++	return 0;
++}
++
++static int bcm2708_fb_set_bitfields(struct fb_var_screeninfo *var)
++{
++	int ret = 0;
++
++	memset(&var->transp, 0, sizeof(var->transp));
++
++	var->red.msb_right = 0;
++	var->green.msb_right = 0;
++	var->blue.msb_right = 0;
++
++	switch (var->bits_per_pixel) {
++	case 1:
++	case 2:
++	case 4:
++	case 8:
++		var->red.length = var->bits_per_pixel;
++		var->red.offset = 0;
++		var->green.length = var->bits_per_pixel;
++		var->green.offset = 0;
++		var->blue.length = var->bits_per_pixel;
++		var->blue.offset = 0;
++		break;
++	case 16:
++		var->red.length = 5;
++		var->blue.length = 5;
++		/*
++		 * Green length can be 5 or 6 depending whether
++		 * we're operating in RGB555 or RGB565 mode.
++		 */
++		if (var->green.length != 5 && var->green.length != 6)
++			var->green.length = 6;
++		break;
++	case 24:
++		var->red.length = 8;
++		var->blue.length = 8;
++		var->green.length = 8;
++		break;
++	case 32:
++		var->red.length = 8;
++		var->green.length = 8;
++		var->blue.length = 8;
++		var->transp.length = 8;
++		break;
++	default:
++		ret = -EINVAL;
++		break;
++	}
++
++	/*
++	 * >= 16bpp displays have separate colour component bitfields
++	 * encoded in the pixel data.  Calculate their position from
++	 * the bitfield length defined above.
++	 */
++	if (ret == 0 && var->bits_per_pixel >= 24 && fbswap) {
++		var->blue.offset = 0;
++		var->green.offset = var->blue.offset + var->blue.length;
++		var->red.offset = var->green.offset + var->green.length;
++		var->transp.offset = var->red.offset + var->red.length;
++	} else if (ret == 0 && var->bits_per_pixel >= 24) {
++		var->red.offset = 0;
++		var->green.offset = var->red.offset + var->red.length;
++		var->blue.offset = var->green.offset + var->green.length;
++		var->transp.offset = var->blue.offset + var->blue.length;
++	} else if (ret == 0 && var->bits_per_pixel >= 16) {
++		var->blue.offset = 0;
++		var->green.offset = var->blue.offset + var->blue.length;
++		var->red.offset = var->green.offset + var->green.length;
++		var->transp.offset = var->red.offset + var->red.length;
++	}
++
++	return ret;
++}
++
++static int bcm2708_fb_check_var(struct fb_var_screeninfo *var,
++				struct fb_info *info)
++{
++	/* info input, var output */
++	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n",
++		    __func__, info, info->var.xres, info->var.yres,
++		    info->var.xres_virtual, info->var.yres_virtual,
++		    (int)info->screen_size, info->var.bits_per_pixel);
++	print_debug("%s(%p) %dx%d (%dx%d), %d\n", __func__, var, var->xres,
++		    var->yres, var->xres_virtual, var->yres_virtual,
++		    var->bits_per_pixel);
++
++	if (!var->bits_per_pixel)
++		var->bits_per_pixel = 16;
++
++	if (bcm2708_fb_set_bitfields(var) != 0) {
++		pr_err("%s: invalid bits_per_pixel %d\n", __func__,
++		       var->bits_per_pixel);
++		return -EINVAL;
++	}
++
++	if (var->xres_virtual < var->xres)
++		var->xres_virtual = var->xres;
++	/* use highest possible virtual resolution */
++	if (var->yres_virtual == -1) {
++		var->yres_virtual = 480;
++
++		pr_err("%s: virtual resolution set to maximum of %dx%d\n",
++		       __func__, var->xres_virtual, var->yres_virtual);
++	}
++	if (var->yres_virtual < var->yres)
++		var->yres_virtual = var->yres;
++
++	if (var->xoffset < 0)
++		var->xoffset = 0;
++	if (var->yoffset < 0)
++		var->yoffset = 0;
++
++	/* truncate xoffset and yoffset to maximum if too high */
++	if (var->xoffset > var->xres_virtual - var->xres)
++		var->xoffset = var->xres_virtual - var->xres - 1;
++	if (var->yoffset > var->yres_virtual - var->yres)
++		var->yoffset = var->yres_virtual - var->yres - 1;
++
++	return 0;
++}
++
++static int bcm2708_fb_set_par(struct fb_info *info)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++	struct fb_alloc_tags fbinfo = {
++		.tag1 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT,
++			  8, 0, },
++			.xres = info->var.xres,
++			.yres = info->var.yres,
++		.tag2 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT,
++			  8, 0, },
++			.xres_virtual = info->var.xres_virtual,
++			.yres_virtual = info->var.yres_virtual,
++		.tag3 = { RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH, 4, 0 },
++			.bpp = info->var.bits_per_pixel,
++		.tag4 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET, 8, 0 },
++			.xoffset = info->var.xoffset,
++			.yoffset = info->var.yoffset,
++		.tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 },
++			/* base and screen_size will be initialised later */
++		.tag6 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH, 4, 0 },
++			/* pitch will be initialised later */
++	};
++	int ret, image_size;
++
++
++	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n", __func__, info,
++		    info->var.xres, info->var.yres, info->var.xres_virtual,
++		    info->var.yres_virtual, (int)info->screen_size,
++		    info->var.bits_per_pixel);
++
++	/* Try allocating our own buffer. We can specify all the parameters */
++	image_size = ((info->var.xres * info->var.yres) *
++		      info->var.bits_per_pixel) >> 3;
++
++	if (!fb->disable_arm_alloc &&
++	    (image_size != fb->image_size || !fb->dma_addr)) {
++		if (fb->dma_addr) {
++			dma_free_coherent(info->device, fb->image_size,
++					  fb->cpuaddr, fb->dma_addr);
++			fb->image_size = 0;
++			fb->cpuaddr = NULL;
++			fb->dma_addr = 0;
++		}
++
++		fb->cpuaddr = dma_alloc_coherent(info->device, image_size,
++						 &fb->dma_addr, GFP_KERNEL);
++
++		if (!fb->cpuaddr) {
++			fb->dma_addr = 0;
++			fb->disable_arm_alloc = true;
++		} else {
++			fb->image_size = image_size;
++		}
++	}
++
++	if (fb->cpuaddr) {
++		fbinfo.base = fb->dma_addr;
++		fbinfo.screen_size = image_size;
++		fbinfo.pitch = (info->var.xres * info->var.bits_per_pixel) >> 3;
++
++		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
++						 sizeof(fbinfo));
++		if (ret || fbinfo.base != fb->dma_addr) {
++			/* Firmware either failed, or assigned a different base
++			 * address (ie it doesn't support being passed an FB
++			 * allocation).
++			 * Destroy the allocation, and don't try again.
++			 */
++			dma_free_coherent(info->device, fb->image_size,
++					  fb->cpuaddr, fb->dma_addr);
++			fb->image_size = 0;
++			fb->cpuaddr = NULL;
++			fb->dma_addr = 0;
++			fb->disable_arm_alloc = true;
++		}
++	} else {
++		/* Our allocation failed - drop into the old scheme of
++		 * allocation by the VPU.
++		 */
++		ret = -ENOMEM;
++	}
++
++	if (ret) {
++		/* Old scheme:
++		 * - FRAMEBUFFER_ALLOCATE passes 0 for base and screen_size.
++		 * - GET_PITCH instead of SET_PITCH.
++		 */
++		fbinfo.base = 0;
++		fbinfo.screen_size = 0;
++		fbinfo.tag6.tag = RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH;
++		fbinfo.pitch = 0;
++
++		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
++						 sizeof(fbinfo));
++		if (ret) {
++			dev_err(info->device,
++				"Failed to allocate GPU framebuffer (%d)\n",
++				ret);
++			return ret;
++		}
++	}
++
++	if (info->var.bits_per_pixel <= 8)
++		fb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
++	else
++		fb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
++
++	fb->fb.fix.line_length = fbinfo.pitch;
++	fbinfo.base |= 0x40000000;
++	fb->fb_bus_address = fbinfo.base;
++	fbinfo.base &= ~0xc0000000;
++	fb->fb.fix.smem_start = fbinfo.base;
++	fb->fb.fix.smem_len = fbinfo.pitch * fbinfo.yres_virtual;
++	fb->fb.screen_size = fbinfo.screen_size;
++
++	if (!fb->dma_addr) {
++		if (fb->fb.screen_base)
++			iounmap(fb->fb.screen_base);
++
++		fb->fb.screen_base = ioremap_wc(fbinfo.base,
++						fb->fb.screen_size);
++	} else {
++		fb->fb.screen_base = fb->cpuaddr;
++	}
++
++	if (!fb->fb.screen_base) {
++		/* the console may currently be locked */
++		console_trylock();
++		console_unlock();
++		dev_err(info->device, "Failed to set screen_base\n");
++		return -ENOMEM;
++	}
++
++	print_debug("%s: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n",
++		    __func__, (void *)fb->fb.screen_base,
++		    (void *)fb->fb_bus_address, fbinfo.xres, fbinfo.yres,
++		    fbinfo.bpp, fbinfo.pitch, (int)fb->fb.screen_size);
++
++	return 0;
++}
++
++static inline u32 convert_bitfield(int val, struct fb_bitfield *bf)
++{
++	unsigned int mask = (1 << bf->length) - 1;
++
++	return (val >> (16 - bf->length) & mask) << bf->offset;
++}
++
++static int bcm2708_fb_setcolreg(unsigned int regno, unsigned int red,
++				unsigned int green, unsigned int blue,
++				unsigned int transp, struct fb_info *info)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++
++	if (fb->fb.var.bits_per_pixel <= 8) {
++		if (regno < 256) {
++			/* blue [23:16], green [15:8], red [7:0] */
++			fb->gpu_cmap[regno] = ((red   >> 8) & 0xff) << 0 |
++					      ((green >> 8) & 0xff) << 8 |
++					      ((blue  >> 8) & 0xff) << 16;
++		}
++		/* Hack: we need to tell GPU the palette has changed, but
++		 * currently bcm2708_fb_set_par takes noticeable time when
++		 * called for every (256) colour
++		 * So just call it for what looks like the last colour in a
++		 * list for now.
++		 */
++		if (regno == 15 || regno == 255) {
++			struct packet {
++				u32 offset;
++				u32 length;
++				u32 cmap[256];
++			} *packet;
++			int ret;
++
++			packet = kmalloc(sizeof(*packet), GFP_KERNEL);
++			if (!packet)
++				return -ENOMEM;
++			packet->offset = 0;
++			packet->length = regno + 1;
++			memcpy(packet->cmap, fb->gpu_cmap,
++			       sizeof(packet->cmap));
++			ret = rpi_firmware_property(fb->fw,
++						    RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
++						    packet,
++						    (2 + packet->length) * sizeof(u32));
++			if (ret || packet->offset)
++				dev_err(info->device,
++					"Failed to set palette (%d,%u)\n",
++					ret, packet->offset);
++			kfree(packet);
++		}
++	} else if (regno < 16) {
++		fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) |
++				  convert_bitfield(blue, &fb->fb.var.blue) |
++				  convert_bitfield(green, &fb->fb.var.green) |
++				  convert_bitfield(red, &fb->fb.var.red);
++	}
++	return regno > 255;
++}
++
++static int bcm2708_fb_blank(int blank_mode, struct fb_info *info)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++	u32 value;
++	int ret;
++
++	switch (blank_mode) {
++	case FB_BLANK_UNBLANK:
++		value = 0;
++		break;
++	case FB_BLANK_NORMAL:
++	case FB_BLANK_VSYNC_SUSPEND:
++	case FB_BLANK_HSYNC_SUSPEND:
++	case FB_BLANK_POWERDOWN:
++		value = 1;
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_BLANK,
++				    &value, sizeof(value));
++	if (ret)
++		dev_err(info->device, "%s(%d) failed: %d\n", __func__,
++			blank_mode, ret);
++
++	return ret;
++}
++
++static int bcm2708_fb_pan_display(struct fb_var_screeninfo *var,
++				  struct fb_info *info)
++{
++	s32 result;
++
++	info->var.xoffset = var->xoffset;
++	info->var.yoffset = var->yoffset;
++	result = bcm2708_fb_set_par(info);
++	if (result != 0)
++		pr_err("%s(%d,%d) returns=%d\n", __func__, var->xoffset,
++		       var->yoffset, result);
++	return result;
++}
++
++static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++	u32 dummy = 0;
++	int ret;
++
++	switch (cmd) {
++	case FBIO_WAITFORVSYNC:
++		ret = rpi_firmware_property(fb->fw,
++					    RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC,
++					    &dummy, sizeof(dummy));
++		break;
++	default:
++		dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd);
++		return -ENOTTY;
++	}
++
++	if (ret)
++		dev_err(info->device, "ioctl 0x%x failed (%d)\n", cmd, ret);
++
++	return ret;
++}
++static void bcm2708_fb_fillrect(struct fb_info *info,
++				const struct fb_fillrect *rect)
++{
++	/* (is called) print_debug("bcm2708_fb_fillrect\n"); */
++	cfb_fillrect(info, rect);
++}
++
++/* A helper function for configuring dma control block */
++static void set_dma_cb(struct bcm2708_dma_cb *cb,
++		       int        burst_size,
++		       dma_addr_t dst,
++		       int        dst_stride,
++		       dma_addr_t src,
++		       int        src_stride,
++		       int        w,
++		       int        h)
++{
++	cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH |
++		   BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
++		   BCM2708_DMA_D_INC | BCM2708_DMA_TDMODE;
++	cb->dst = dst;
++	cb->src = src;
++	/*
++	 * This is not really obvious from the DMA documentation,
++	 * but the top 16 bits must be programmmed to "height -1"
++	 * and not "height" in 2D mode.
++	 */
++	cb->length = ((h - 1) << 16) | w;
++	cb->stride = ((dst_stride - w) << 16) | (u16)(src_stride - w);
++	cb->pad[0] = 0;
++	cb->pad[1] = 0;
++}
++
++static void bcm2708_fb_copyarea(struct fb_info *info,
++				const struct fb_copyarea *region)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++	struct bcm2708_dma_cb *cb = fb->cb_base;
++	int bytes_per_pixel = (info->var.bits_per_pixel + 7) >> 3;
++
++	/* Channel 0 supports larger bursts and is a bit faster */
++	int burst_size = (fb->dma_chan == 0) ? 8 : 2;
++	int pixels = region->width * region->height;
++
++	/* Fallback to cfb_copyarea() if we don't like something */
++	if (bytes_per_pixel > 4 ||
++	    info->var.xres * info->var.yres > 1920 * 1200 ||
++	    region->width <= 0 || region->width > info->var.xres ||
++	    region->height <= 0 || region->height > info->var.yres ||
++	    region->sx < 0 || region->sx >= info->var.xres ||
++	    region->sy < 0 || region->sy >= info->var.yres ||
++	    region->dx < 0 || region->dx >= info->var.xres ||
++	    region->dy < 0 || region->dy >= info->var.yres ||
++	    region->sx + region->width > info->var.xres ||
++	    region->dx + region->width > info->var.xres ||
++	    region->sy + region->height > info->var.yres ||
++	    region->dy + region->height > info->var.yres) {
++		cfb_copyarea(info, region);
++		return;
++	}
++
++	if (region->dy == region->sy && region->dx > region->sx) {
++		/*
++		 * A difficult case of overlapped copy. Because DMA can't
++		 * copy individual scanlines in backwards direction, we need
++		 * two-pass processing. We do it by programming a chain of dma
++		 * control blocks in the first 16K part of the buffer and use
++		 * the remaining 48K as the intermediate temporary scratch
++		 * buffer. The buffer size is sufficient to handle up to
++		 * 1920x1200 resolution at 32bpp pixel depth.
++		 */
++		int y;
++		dma_addr_t control_block_pa = fb->cb_handle;
++		dma_addr_t scratchbuf = fb->cb_handle + 16 * 1024;
++		int scanline_size = bytes_per_pixel * region->width;
++		int scanlines_per_cb = (64 * 1024 - 16 * 1024) / scanline_size;
++
++		for (y = 0; y < region->height; y += scanlines_per_cb) {
++			dma_addr_t src =
++				fb->fb_bus_address +
++				bytes_per_pixel * region->sx +
++				(region->sy + y) * fb->fb.fix.line_length;
++			dma_addr_t dst =
++				fb->fb_bus_address +
++				bytes_per_pixel * region->dx +
++				(region->dy + y) * fb->fb.fix.line_length;
++
++			if (region->height - y < scanlines_per_cb)
++				scanlines_per_cb = region->height - y;
++
++			set_dma_cb(cb, burst_size, scratchbuf, scanline_size,
++				   src, fb->fb.fix.line_length,
++				   scanline_size, scanlines_per_cb);
++			control_block_pa += sizeof(struct bcm2708_dma_cb);
++			cb->next = control_block_pa;
++			cb++;
++
++			set_dma_cb(cb, burst_size, dst, fb->fb.fix.line_length,
++				   scratchbuf, scanline_size,
++				   scanline_size, scanlines_per_cb);
++			control_block_pa += sizeof(struct bcm2708_dma_cb);
++			cb->next = control_block_pa;
++			cb++;
++		}
++		/* move the pointer back to the last dma control block */
++		cb--;
++	} else {
++		/* A single dma control block is enough. */
++		int sy, dy, stride;
++
++		if (region->dy <= region->sy) {
++			/* processing from top to bottom */
++			dy = region->dy;
++			sy = region->sy;
++			stride = fb->fb.fix.line_length;
++		} else {
++			/* processing from bottom to top */
++			dy = region->dy + region->height - 1;
++			sy = region->sy + region->height - 1;
++			stride = -fb->fb.fix.line_length;
++		}
++		set_dma_cb(cb, burst_size,
++			   fb->fb_bus_address + dy * fb->fb.fix.line_length +
++						   bytes_per_pixel * region->dx,
++			   stride,
++			   fb->fb_bus_address + sy * fb->fb.fix.line_length +
++						   bytes_per_pixel * region->sx,
++			   stride,
++			   region->width * bytes_per_pixel,
++			   region->height);
++	}
++
++	/* end of dma control blocks chain */
++	cb->next = 0;
++
++	if (pixels < dma_busy_wait_threshold) {
++		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
++		bcm_dma_wait_idle(fb->dma_chan_base);
++	} else {
++		void __iomem *dma_chan = fb->dma_chan_base;
++
++		cb->info |= BCM2708_DMA_INT_EN;
++		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
++		while (bcm_dma_is_busy(dma_chan)) {
++			wait_event_interruptible(fb->dma_waitq,
++						 !bcm_dma_is_busy(dma_chan));
++		}
++		fb->stats.dma_irqs++;
++	}
++	fb->stats.dma_copies++;
++}
++
++static void bcm2708_fb_imageblit(struct fb_info *info,
++				 const struct fb_image *image)
++{
++	/* (is called) print_debug("bcm2708_fb_imageblit\n"); */
++	cfb_imageblit(info, image);
++}
++
++static irqreturn_t bcm2708_fb_dma_irq(int irq, void *cxt)
++{
++	struct bcm2708_fb *fb = cxt;
++
++	/* FIXME: should read status register to check if this is
++	 * actually interrupting us or not, in case this interrupt
++	 * ever becomes shared amongst several DMA channels
++	 *
++	 * readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_IRQ;
++	 */
++
++	/* acknowledge the interrupt */
++	writel(BCM2708_DMA_INT, fb->dma_chan_base + BCM2708_DMA_CS);
++
++	wake_up(&fb->dma_waitq);
++	return IRQ_HANDLED;
++}
++
++static struct fb_ops bcm2708_fb_ops = {
++	.owner = THIS_MODULE,
++	.fb_check_var = bcm2708_fb_check_var,
++	.fb_set_par = bcm2708_fb_set_par,
++	.fb_setcolreg = bcm2708_fb_setcolreg,
++	.fb_blank = bcm2708_fb_blank,
++	.fb_fillrect = bcm2708_fb_fillrect,
++	.fb_copyarea = bcm2708_fb_copyarea,
++	.fb_imageblit = bcm2708_fb_imageblit,
++	.fb_pan_display = bcm2708_fb_pan_display,
++	.fb_ioctl = bcm2708_ioctl,
++};
++
++static int bcm2708_fb_register(struct bcm2708_fb *fb)
++{
++	int ret;
++
++	fb->fb.fbops = &bcm2708_fb_ops;
++	fb->fb.flags = FBINFO_FLAG_DEFAULT | FBINFO_HWACCEL_COPYAREA;
++	fb->fb.pseudo_palette = fb->cmap;
++
++	strncpy(fb->fb.fix.id, bcm2708_name, sizeof(fb->fb.fix.id));
++	fb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
++	fb->fb.fix.type_aux = 0;
++	fb->fb.fix.xpanstep = 1;
++	fb->fb.fix.ypanstep = 1;
++	fb->fb.fix.ywrapstep = 0;
++	fb->fb.fix.accel = FB_ACCEL_NONE;
++
++	fb->fb.var.xres = fbwidth;
++	fb->fb.var.yres = fbheight;
++	fb->fb.var.xres_virtual = fbwidth;
++	fb->fb.var.yres_virtual = fbheight;
++	fb->fb.var.bits_per_pixel = fbdepth;
++	fb->fb.var.vmode = FB_VMODE_NONINTERLACED;
++	fb->fb.var.activate = FB_ACTIVATE_NOW;
++	fb->fb.var.nonstd = 0;
++	fb->fb.var.height = -1;		/* height of picture in mm    */
++	fb->fb.var.width = -1;		/* width of picture in mm    */
++	fb->fb.var.accel_flags = 0;
++
++	fb->fb.monspecs.hfmin = 0;
++	fb->fb.monspecs.hfmax = 100000;
++	fb->fb.monspecs.vfmin = 0;
++	fb->fb.monspecs.vfmax = 400;
++	fb->fb.monspecs.dclkmin = 1000000;
++	fb->fb.monspecs.dclkmax = 100000000;
++
++	bcm2708_fb_set_bitfields(&fb->fb.var);
++	init_waitqueue_head(&fb->dma_waitq);
++
++	/*
++	 * Allocate colourmap.
++	 */
++
++	fb_set_var(&fb->fb, &fb->fb.var);
++	ret = bcm2708_fb_set_par(&fb->fb);
++	if (ret)
++		return ret;
++
++	print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n",
++		    fbwidth, fbheight, fbdepth, fbswap);
++
++	ret = register_framebuffer(&fb->fb);
++	print_debug("BCM2708FB: register framebuffer (%d)\n", ret);
++	if (ret == 0)
++		goto out;
++
++	print_debug("BCM2708FB: cannot register framebuffer (%d)\n", ret);
++out:
++	return ret;
++}
++
++static int bcm2708_fb_probe(struct platform_device *dev)
++{
++	struct device_node *fw_np;
++	struct rpi_firmware *fw;
++	struct bcm2708_fb *fb;
++	int ret;
++
++	fw_np = of_parse_phandle(dev->dev.of_node, "firmware", 0);
++/* Remove comment when booting without Device Tree is no longer supported
++ *	if (!fw_np) {
++ *		dev_err(&dev->dev, "Missing firmware node\n");
++ *		return -ENOENT;
++ *	}
++ */
++	fw = rpi_firmware_get(fw_np);
++	if (!fw)
++		return -EPROBE_DEFER;
++
++	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
++	if (!fb) {
++		ret = -ENOMEM;
++		goto free_region;
++	}
++
++	fb->fw = fw;
++	bcm2708_fb_debugfs_init(fb);
++
++	fb->cb_base = dma_alloc_wc(&dev->dev, SZ_64K,
++					     &fb->cb_handle, GFP_KERNEL);
++	if (!fb->cb_base) {
++		dev_err(&dev->dev, "cannot allocate DMA CBs\n");
++		ret = -ENOMEM;
++		goto free_fb;
++	}
++
++	pr_info("BCM2708FB: allocated DMA memory %pad\n", &fb->cb_handle);
++
++	ret = bcm_dma_chan_alloc(BCM_DMA_FEATURE_BULK,
++				 &fb->dma_chan_base, &fb->dma_irq);
++	if (ret < 0) {
++		dev_err(&dev->dev, "couldn't allocate a DMA channel\n");
++		goto free_cb;
++	}
++	fb->dma_chan = ret;
++
++	ret = request_irq(fb->dma_irq, bcm2708_fb_dma_irq,
++			  0, "bcm2708_fb dma", fb);
++	if (ret) {
++		pr_err("%s: failed to request DMA irq\n", __func__);
++		goto free_dma_chan;
++	}
++
++	pr_info("BCM2708FB: allocated DMA channel %d\n", fb->dma_chan);
++
++	fb->dev = dev;
++	fb->fb.device = &dev->dev;
++
++	/* failure here isn't fatal, but we'll fail in vc_mem_copy if
++	 * fb->gpu is not valid
++	 */
++	rpi_firmware_property(fb->fw, RPI_FIRMWARE_GET_VC_MEMORY, &fb->gpu,
++			      sizeof(fb->gpu));
++
++	ret = bcm2708_fb_register(fb);
++	if (ret == 0) {
++		platform_set_drvdata(dev, fb);
++		goto out;
++	}
++
++free_dma_chan:
++	bcm_dma_chan_free(fb->dma_chan);
++free_cb:
++	dma_free_wc(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle);
++free_fb:
++	kfree(fb);
++free_region:
++	dev_err(&dev->dev, "probe failed, err %d\n", ret);
++out:
++	return ret;
++}
++
++static int bcm2708_fb_remove(struct platform_device *dev)
++{
++	struct bcm2708_fb *fb = platform_get_drvdata(dev);
++
++	platform_set_drvdata(dev, NULL);
++
++	if (fb->fb.screen_base)
++		iounmap(fb->fb.screen_base);
++	unregister_framebuffer(&fb->fb);
++
++	dma_free_wc(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle);
++	bcm_dma_chan_free(fb->dma_chan);
++
++	bcm2708_fb_debugfs_deinit(fb);
++
++	free_irq(fb->dma_irq, fb);
++
++	kfree(fb);
++
++	return 0;
++}
++
++static const struct of_device_id bcm2708_fb_of_match_table[] = {
++	{ .compatible = "brcm,bcm2708-fb", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, bcm2708_fb_of_match_table);
++
++static struct platform_driver bcm2708_fb_driver = {
++	.probe = bcm2708_fb_probe,
++	.remove = bcm2708_fb_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = bcm2708_fb_of_match_table,
++		   },
++};
++
++static int __init bcm2708_fb_init(void)
++{
++	return platform_driver_register(&bcm2708_fb_driver);
++}
++
++module_init(bcm2708_fb_init);
++
++static void __exit bcm2708_fb_exit(void)
++{
++	platform_driver_unregister(&bcm2708_fb_driver);
++}
++
++module_exit(bcm2708_fb_exit);
++
++module_param(fbwidth, int, 0644);
++module_param(fbheight, int, 0644);
++module_param(fbdepth, int, 0644);
++module_param(fbswap, int, 0644);
++
++MODULE_DESCRIPTION("BCM2708 framebuffer driver");
++MODULE_LICENSE("GPL");
++
++MODULE_PARM_DESC(fbwidth, "Width of ARM Framebuffer");
++MODULE_PARM_DESC(fbheight, "Height of ARM Framebuffer");
++MODULE_PARM_DESC(fbdepth, "Bit depth of ARM Framebuffer");
++MODULE_PARM_DESC(fbswap, "Swap order of red and blue in 24 and 32 bit modes");
+--- a/drivers/video/logo/logo_linux_clut224.ppm
++++ b/drivers/video/logo/logo_linux_clut224.ppm
+@@ -1,1604 +1,883 @@
+ P3
+-# Standard 224-color Linux logo
+-80 80
++63 80
+ 255
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+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -123,6 +123,7 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH =                  0x00048005,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PIXEL_ORDER =            0x00048006,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE =             0x00048007,
++	RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH =                  0x00048008,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET =         0x00048009,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN =               0x0004800a,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE =                0x0004800b,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0042-Pulled-in-the-multi-frame-buffer-support-from-the-Pi.patch b/target/linux/bcm27xx/patches-5.10/950-0042-Pulled-in-the-multi-frame-buffer-support-from-the-Pi.patch
new file mode 100644
index 0000000000..884753f872
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0042-Pulled-in-the-multi-frame-buffer-support-from-the-Pi.patch
@@ -0,0 +1,828 @@
+From 4ac7128970e15d83ef3c2a65e65ca9ee4096c9d1 Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Thu, 14 Mar 2019 13:27:54 +0000
+Subject: [PATCH] Pulled in the multi frame buffer support from the Pi3
+ repo
+
+---
+ drivers/video/fbdev/bcm2708_fb.c           | 457 +++++++++++++++------
+ include/soc/bcm2835/raspberrypi-firmware.h |  13 +
+ 2 files changed, 337 insertions(+), 133 deletions(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -2,6 +2,7 @@
+  *  linux/drivers/video/bcm2708_fb.c
+  *
+  * Copyright (C) 2010 Broadcom
++ * Copyright (C) 2018 Raspberry Pi (Trading) Ltd
+  *
+  * This file is subject to the terms and conditions of the GNU General Public
+  * License.  See the file COPYING in the main directory of this archive
+@@ -13,6 +14,7 @@
+  * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
+  *
+  */
++
+ #include <linux/module.h>
+ #include <linux/kernel.h>
+ #include <linux/errno.h>
+@@ -33,6 +35,7 @@
+ #include <linux/io.h>
+ #include <linux/dma-mapping.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
++#include <linux/mutex.h>
+ 
+ //#define BCM2708_FB_DEBUG
+ #define MODULE_NAME "bcm2708_fb"
+@@ -79,64 +82,150 @@ struct bcm2708_fb_stats {
+ 	u32 dma_irqs;
+ };
+ 
++struct vc4_display_settings_t {
++	u32 display_num;
++	u32 width;
++	u32 height;
++	u32 depth;
++	u32 pitch;
++	u32 virtual_width;
++	u32 virtual_height;
++	u32 virtual_width_offset;
++	u32 virtual_height_offset;
++	unsigned long fb_bus_address;
++};
++
++struct bcm2708_fb_dev;
++
+ struct bcm2708_fb {
+ 	struct fb_info fb;
+ 	struct platform_device *dev;
+-	struct rpi_firmware *fw;
+ 	u32 cmap[16];
+ 	u32 gpu_cmap[256];
+-	int dma_chan;
+-	int dma_irq;
+-	void __iomem *dma_chan_base;
+-	void *cb_base;		/* DMA control blocks */
+-	dma_addr_t cb_handle;
+ 	struct dentry *debugfs_dir;
+-	wait_queue_head_t dma_waitq;
+-	struct bcm2708_fb_stats stats;
++	struct dentry *debugfs_subdir;
+ 	unsigned long fb_bus_address;
+-	bool disable_arm_alloc;
++	struct { u32 base, length; } gpu;
++	struct vc4_display_settings_t display_settings;
++	struct debugfs_regset32 screeninfo_regset;
++	struct bcm2708_fb_dev *fbdev;
+ 	unsigned int image_size;
+ 	dma_addr_t dma_addr;
+ 	void *cpuaddr;
+ };
+ 
++#define MAX_FRAMEBUFFERS 3
++
++struct bcm2708_fb_dev {
++	int firmware_supports_multifb;
++	/* Protects the DMA system from multiple FB access */
++	struct mutex dma_mutex;
++	int dma_chan;
++	int dma_irq;
++	void __iomem *dma_chan_base;
++	wait_queue_head_t dma_waitq;
++	bool disable_arm_alloc;
++	struct bcm2708_fb_stats dma_stats;
++	void *cb_base;	/* DMA control blocks */
++	dma_addr_t cb_handle;
++	int instance_count;
++	int num_displays;
++	struct rpi_firmware *fw;
++	struct bcm2708_fb displays[MAX_FRAMEBUFFERS];
++};
++
+ #define to_bcm2708(info)	container_of(info, struct bcm2708_fb, fb)
+ 
+ static void bcm2708_fb_debugfs_deinit(struct bcm2708_fb *fb)
+ {
+-	debugfs_remove_recursive(fb->debugfs_dir);
+-	fb->debugfs_dir = NULL;
++	debugfs_remove_recursive(fb->debugfs_subdir);
++	fb->debugfs_subdir = NULL;
++
++	fb->fbdev->instance_count--;
++
++	if (!fb->fbdev->instance_count) {
++		debugfs_remove_recursive(fb->debugfs_dir);
++		fb->debugfs_dir = NULL;
++	}
+ }
+ 
+ static int bcm2708_fb_debugfs_init(struct bcm2708_fb *fb)
+ {
++	char buf[3];
++	struct bcm2708_fb_dev *fbdev = fb->fbdev;
++
+ 	static struct debugfs_reg32 stats_registers[] = {
+-		{
+-			"dma_copies",
+-			offsetof(struct bcm2708_fb_stats, dma_copies)
+-		},
+-		{
+-			"dma_irqs",
+-			offsetof(struct bcm2708_fb_stats, dma_irqs)
+-		},
++	{"dma_copies", offsetof(struct bcm2708_fb_stats, dma_copies)},
++	{"dma_irqs",   offsetof(struct bcm2708_fb_stats, dma_irqs)},
+ 	};
+ 
+-	fb->debugfs_dir = debugfs_create_dir(DRIVER_NAME, NULL);
++	static struct debugfs_reg32 screeninfo[] = {
++	{"width",	 offsetof(struct fb_var_screeninfo, xres)},
++	{"height",	 offsetof(struct fb_var_screeninfo, yres)},
++	{"bpp",		 offsetof(struct fb_var_screeninfo, bits_per_pixel)},
++	{"xres_virtual", offsetof(struct fb_var_screeninfo, xres_virtual)},
++	{"yres_virtual", offsetof(struct fb_var_screeninfo, yres_virtual)},
++	{"xoffset",	 offsetof(struct fb_var_screeninfo, xoffset)},
++	{"yoffset",	 offsetof(struct fb_var_screeninfo, yoffset)},
++	};
++
++	fb->debugfs_dir = debugfs_lookup(DRIVER_NAME, NULL);
++
++	if (!fb->debugfs_dir)
++		fb->debugfs_dir = debugfs_create_dir(DRIVER_NAME, NULL);
++
+ 	if (!fb->debugfs_dir) {
+-		pr_warn("%s: could not create debugfs entry\n",
+-			__func__);
++		dev_warn(fb->fb.dev, "%s: could not create debugfs folder\n",
++			 __func__);
+ 		return -EFAULT;
+ 	}
+ 
+-	fb->stats.regset.regs = stats_registers;
+-	fb->stats.regset.nregs = ARRAY_SIZE(stats_registers);
+-	fb->stats.regset.base = &fb->stats;
++	snprintf(buf, sizeof(buf), "%u", fb->display_settings.display_num);
++
++	fb->debugfs_subdir = debugfs_create_dir(buf, fb->debugfs_dir);
+ 
+ 	debugfs_create_regset32("stats", 0444, fb->debugfs_dir,
+ 				&fb->stats.regset);
++
++	if (!fb->debugfs_subdir) {
++		dev_warn(fb->fb.dev, "%s: could not create debugfs entry %u\n",
++			 __func__, fb->display_settings.display_num);
++		return -EFAULT;
++	}
++
++	fbdev->dma_stats.regset.regs = stats_registers;
++	fbdev->dma_stats.regset.nregs = ARRAY_SIZE(stats_registers);
++	fbdev->dma_stats.regset.base = &fbdev->dma_stats;
++
++	debugfs_create_regset32("dma_stats", 0444, fb->debugfs_subdir,
++				&fbdev->dma_stats.regset);
++
++	fb->screeninfo_regset.regs = screeninfo;
++	fb->screeninfo_regset.nregs = ARRAY_SIZE(screeninfo);
++	fb->screeninfo_regset.base = &fb->fb.var;
++
++	debugfs_create_regset32("screeninfo", 0444, fb->debugfs_subdir,
++				&fb->screeninfo_regset);
++
++	fbdev->instance_count++;
++
+ 	return 0;
+ }
+ 
++static void set_display_num(struct bcm2708_fb *fb)
++{
++	if (fb && fb->fbdev && fb->fbdev->firmware_supports_multifb) {
++		u32 tmp = fb->display_settings.display_num;
++
++		if (rpi_firmware_property(fb->fbdev->fw,
++					  RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM,
++					  &tmp,
++					  sizeof(tmp)))
++			dev_warn_once(fb->fb.dev,
++				      "Set display number call failed. Old GPU firmware?");
++	}
++}
++
+ static int bcm2708_fb_set_bitfields(struct fb_var_screeninfo *var)
+ {
+ 	int ret = 0;
+@@ -214,11 +303,11 @@ static int bcm2708_fb_check_var(struct f
+ 				struct fb_info *info)
+ {
+ 	/* info input, var output */
+-	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n",
++	print_debug("%s(%p) %ux%u (%ux%u), %ul, %u\n",
+ 		    __func__, info, info->var.xres, info->var.yres,
+ 		    info->var.xres_virtual, info->var.yres_virtual,
+-		    (int)info->screen_size, info->var.bits_per_pixel);
+-	print_debug("%s(%p) %dx%d (%dx%d), %d\n", __func__, var, var->xres,
++		    info->screen_size, info->var.bits_per_pixel);
++	print_debug("%s(%p) %ux%u (%ux%u), %u\n", __func__, var, var->xres,
+ 		    var->yres, var->xres_virtual, var->yres_virtual,
+ 		    var->bits_per_pixel);
+ 
+@@ -281,17 +370,24 @@ static int bcm2708_fb_set_par(struct fb_
+ 	};
+ 	int ret, image_size;
+ 
+-
+-	print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n", __func__, info,
++	print_debug("%s(%p) %dx%d (%dx%d), %d, %d (display %d)\n", __func__,
++		    info,
+ 		    info->var.xres, info->var.yres, info->var.xres_virtual,
+ 		    info->var.yres_virtual, (int)info->screen_size,
+-		    info->var.bits_per_pixel);
++		    info->var.bits_per_pixel, value);
++
++	/* Need to set the display number to act on first
++	 * Cannot do it in the tag list because on older firmware the call
++	 * will fail and stop the rest of the list being executed.
++	 * We can ignore this call failing as the default at other end is 0
++	 */
++	set_display_num(fb);
+ 
+ 	/* Try allocating our own buffer. We can specify all the parameters */
+ 	image_size = ((info->var.xres * info->var.yres) *
+ 		      info->var.bits_per_pixel) >> 3;
+ 
+-	if (!fb->disable_arm_alloc &&
++	if (!fb->fbdev->disable_arm_alloc &&
+ 	    (image_size != fb->image_size || !fb->dma_addr)) {
+ 		if (fb->dma_addr) {
+ 			dma_free_coherent(info->device, fb->image_size,
+@@ -306,7 +402,7 @@ static int bcm2708_fb_set_par(struct fb_
+ 
+ 		if (!fb->cpuaddr) {
+ 			fb->dma_addr = 0;
+-			fb->disable_arm_alloc = true;
++			fb->fbdev->disable_arm_alloc = true;
+ 		} else {
+ 			fb->image_size = image_size;
+ 		}
+@@ -317,7 +413,7 @@ static int bcm2708_fb_set_par(struct fb_
+ 		fbinfo.screen_size = image_size;
+ 		fbinfo.pitch = (info->var.xres * info->var.bits_per_pixel) >> 3;
+ 
+-		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
++		ret = rpi_firmware_property_list(fb->fbdev->fw, &fbinfo,
+ 						 sizeof(fbinfo));
+ 		if (ret || fbinfo.base != fb->dma_addr) {
+ 			/* Firmware either failed, or assigned a different base
+@@ -330,7 +426,7 @@ static int bcm2708_fb_set_par(struct fb_
+ 			fb->image_size = 0;
+ 			fb->cpuaddr = NULL;
+ 			fb->dma_addr = 0;
+-			fb->disable_arm_alloc = true;
++			fb->fbdev->disable_arm_alloc = true;
+ 		}
+ 	} else {
+ 		/* Our allocation failed - drop into the old scheme of
+@@ -349,7 +445,7 @@ static int bcm2708_fb_set_par(struct fb_
+ 		fbinfo.tag6.tag = RPI_FIRMWARE_FRAMEBUFFER_GET_PITCH;
+ 		fbinfo.pitch = 0;
+ 
+-		ret = rpi_firmware_property_list(fb->fw, &fbinfo,
++		ret = rpi_firmware_property_list(fb->fbdev->fw, &fbinfo,
+ 						 sizeof(fbinfo));
+ 		if (ret) {
+ 			dev_err(info->device,
+@@ -439,7 +535,10 @@ static int bcm2708_fb_setcolreg(unsigned
+ 			packet->length = regno + 1;
+ 			memcpy(packet->cmap, fb->gpu_cmap,
+ 			       sizeof(packet->cmap));
+-			ret = rpi_firmware_property(fb->fw,
++
++			set_display_num(fb);
++
++			ret = rpi_firmware_property(fb->fbdev->fw,
+ 						    RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
+ 						    packet,
+ 						    (2 + packet->length) * sizeof(u32));
+@@ -478,8 +577,11 @@ static int bcm2708_fb_blank(int blank_mo
+ 		return -EINVAL;
+ 	}
+ 
+-	ret = rpi_firmware_property(fb->fw, RPI_FIRMWARE_FRAMEBUFFER_BLANK,
++	set_display_num(fb);
++
++	ret = rpi_firmware_property(fb->fbdev->fw, RPI_FIRMWARE_FRAMEBUFFER_BLANK,
+ 				    &value, sizeof(value));
++
+ 	if (ret)
+ 		dev_err(info->device, "%s(%d) failed: %d\n", __func__,
+ 			blank_mode, ret);
+@@ -496,12 +598,14 @@ static int bcm2708_fb_pan_display(struct
+ 	info->var.yoffset = var->yoffset;
+ 	result = bcm2708_fb_set_par(info);
+ 	if (result != 0)
+-		pr_err("%s(%d,%d) returns=%d\n", __func__, var->xoffset,
++		pr_err("%s(%u,%u) returns=%d\n", __func__, var->xoffset,
+ 		       var->yoffset, result);
+ 	return result;
+ }
+ 
+ static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
++static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd,
++			 unsigned long arg)
+ {
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+ 	u32 dummy = 0;
+@@ -509,7 +613,9 @@ static int bcm2708_ioctl(struct fb_info
+ 
+ 	switch (cmd) {
+ 	case FBIO_WAITFORVSYNC:
+-		ret = rpi_firmware_property(fb->fw,
++		set_display_num(fb);
++
++		ret = rpi_firmware_property(fb->fbdev->fw,
+ 					    RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC,
+ 					    &dummy, sizeof(dummy));
+ 		break;
+@@ -526,23 +632,22 @@ static int bcm2708_ioctl(struct fb_info
+ static void bcm2708_fb_fillrect(struct fb_info *info,
+ 				const struct fb_fillrect *rect)
+ {
+-	/* (is called) print_debug("bcm2708_fb_fillrect\n"); */
+ 	cfb_fillrect(info, rect);
+ }
+ 
+ /* A helper function for configuring dma control block */
+ static void set_dma_cb(struct bcm2708_dma_cb *cb,
+-		       int        burst_size,
+-		       dma_addr_t dst,
+-		       int        dst_stride,
+-		       dma_addr_t src,
+-		       int        src_stride,
+-		       int        w,
+-		       int        h)
++		int        burst_size,
++		dma_addr_t dst,
++		int        dst_stride,
++		dma_addr_t src,
++		int        src_stride,
++		int        w,
++		int        h)
+ {
+ 	cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH |
+-		   BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
+-		   BCM2708_DMA_D_INC | BCM2708_DMA_TDMODE;
++		BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
++		BCM2708_DMA_D_INC | BCM2708_DMA_TDMODE;
+ 	cb->dst = dst;
+ 	cb->src = src;
+ 	/*
+@@ -560,15 +665,19 @@ static void bcm2708_fb_copyarea(struct f
+ 				const struct fb_copyarea *region)
+ {
+ 	struct bcm2708_fb *fb = to_bcm2708(info);
+-	struct bcm2708_dma_cb *cb = fb->cb_base;
++	struct bcm2708_fb_dev *fbdev = fb->fbdev;
++	struct bcm2708_dma_cb *cb = fbdev->cb_base;
+ 	int bytes_per_pixel = (info->var.bits_per_pixel + 7) >> 3;
+ 
+ 	/* Channel 0 supports larger bursts and is a bit faster */
+-	int burst_size = (fb->dma_chan == 0) ? 8 : 2;
++	int burst_size = (fbdev->dma_chan == 0) ? 8 : 2;
+ 	int pixels = region->width * region->height;
+ 
+-	/* Fallback to cfb_copyarea() if we don't like something */
+-	if (bytes_per_pixel > 4 ||
++	/* If DMA is currently in use (ie being used on another FB), then
++	 * rather than wait for it to finish, just use the cfb_copyarea
++	 */
++	if (!mutex_trylock(&fbdev->dma_mutex) ||
++	    bytes_per_pixel > 4 ||
+ 	    info->var.xres * info->var.yres > 1920 * 1200 ||
+ 	    region->width <= 0 || region->width > info->var.xres ||
+ 	    region->height <= 0 || region->height > info->var.yres ||
+@@ -595,8 +704,8 @@ static void bcm2708_fb_copyarea(struct f
+ 		 * 1920x1200 resolution at 32bpp pixel depth.
+ 		 */
+ 		int y;
+-		dma_addr_t control_block_pa = fb->cb_handle;
+-		dma_addr_t scratchbuf = fb->cb_handle + 16 * 1024;
++		dma_addr_t control_block_pa = fbdev->cb_handle;
++		dma_addr_t scratchbuf = fbdev->cb_handle + 16 * 1024;
+ 		int scanline_size = bytes_per_pixel * region->width;
+ 		int scanlines_per_cb = (64 * 1024 - 16 * 1024) / scanline_size;
+ 
+@@ -646,10 +755,10 @@ static void bcm2708_fb_copyarea(struct f
+ 		}
+ 		set_dma_cb(cb, burst_size,
+ 			   fb->fb_bus_address + dy * fb->fb.fix.line_length +
+-						   bytes_per_pixel * region->dx,
++			   bytes_per_pixel * region->dx,
+ 			   stride,
+ 			   fb->fb_bus_address + sy * fb->fb.fix.line_length +
+-						   bytes_per_pixel * region->sx,
++			   bytes_per_pixel * region->sx,
+ 			   stride,
+ 			   region->width * bytes_per_pixel,
+ 			   region->height);
+@@ -659,32 +768,33 @@ static void bcm2708_fb_copyarea(struct f
+ 	cb->next = 0;
+ 
+ 	if (pixels < dma_busy_wait_threshold) {
+-		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
+-		bcm_dma_wait_idle(fb->dma_chan_base);
++		bcm_dma_start(fbdev->dma_chan_base, fbdev->cb_handle);
++		bcm_dma_wait_idle(fbdev->dma_chan_base);
+ 	} else {
+-		void __iomem *dma_chan = fb->dma_chan_base;
++		void __iomem *local_dma_chan = fbdev->dma_chan_base;
+ 
+ 		cb->info |= BCM2708_DMA_INT_EN;
+-		bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
+-		while (bcm_dma_is_busy(dma_chan)) {
+-			wait_event_interruptible(fb->dma_waitq,
+-						 !bcm_dma_is_busy(dma_chan));
++		bcm_dma_start(fbdev->dma_chan_base, fbdev->cb_handle);
++		while (bcm_dma_is_busy(local_dma_chan)) {
++			wait_event_interruptible(fbdev->dma_waitq,
++						 !bcm_dma_is_busy(local_dma_chan));
+ 		}
+-		fb->stats.dma_irqs++;
++		fbdev->dma_stats.dma_irqs++;
+ 	}
+-	fb->stats.dma_copies++;
++	fbdev->dma_stats.dma_copies++;
++
++	mutex_unlock(&fbdev->dma_mutex);
+ }
+ 
+ static void bcm2708_fb_imageblit(struct fb_info *info,
+ 				 const struct fb_image *image)
+ {
+-	/* (is called) print_debug("bcm2708_fb_imageblit\n"); */
+ 	cfb_imageblit(info, image);
+ }
+ 
+ static irqreturn_t bcm2708_fb_dma_irq(int irq, void *cxt)
+ {
+-	struct bcm2708_fb *fb = cxt;
++	struct bcm2708_fb_dev *fbdev = cxt;
+ 
+ 	/* FIXME: should read status register to check if this is
+ 	 * actually interrupting us or not, in case this interrupt
+@@ -694,9 +804,9 @@ static irqreturn_t bcm2708_fb_dma_irq(in
+ 	 */
+ 
+ 	/* acknowledge the interrupt */
+-	writel(BCM2708_DMA_INT, fb->dma_chan_base + BCM2708_DMA_CS);
++	writel(BCM2708_DMA_INT, fbdev->dma_chan_base + BCM2708_DMA_CS);
+ 
+-	wake_up(&fb->dma_waitq);
++	wake_up(&fbdev->dma_waitq);
+ 	return IRQ_HANDLED;
+ }
+ 
+@@ -729,11 +839,23 @@ static int bcm2708_fb_register(struct bc
+ 	fb->fb.fix.ywrapstep = 0;
+ 	fb->fb.fix.accel = FB_ACCEL_NONE;
+ 
+-	fb->fb.var.xres = fbwidth;
+-	fb->fb.var.yres = fbheight;
+-	fb->fb.var.xres_virtual = fbwidth;
+-	fb->fb.var.yres_virtual = fbheight;
+-	fb->fb.var.bits_per_pixel = fbdepth;
++	/* If we have data from the VC4 on FB's, use that, otherwise use the
++	 * module parameters
++	 */
++	if (fb->display_settings.width) {
++		fb->fb.var.xres = fb->display_settings.width;
++		fb->fb.var.yres = fb->display_settings.height;
++		fb->fb.var.xres_virtual = fb->fb.var.xres;
++		fb->fb.var.yres_virtual = fb->fb.var.yres;
++		fb->fb.var.bits_per_pixel = fb->display_settings.depth;
++	} else {
++		fb->fb.var.xres = fbwidth;
++		fb->fb.var.yres = fbheight;
++		fb->fb.var.xres_virtual = fbwidth;
++		fb->fb.var.yres_virtual = fbheight;
++		fb->fb.var.bits_per_pixel = fbdepth;
++	}
++
+ 	fb->fb.var.vmode = FB_VMODE_NONINTERLACED;
+ 	fb->fb.var.activate = FB_ACTIVATE_NOW;
+ 	fb->fb.var.nonstd = 0;
+@@ -749,26 +871,23 @@ static int bcm2708_fb_register(struct bc
+ 	fb->fb.monspecs.dclkmax = 100000000;
+ 
+ 	bcm2708_fb_set_bitfields(&fb->fb.var);
+-	init_waitqueue_head(&fb->dma_waitq);
+ 
+ 	/*
+ 	 * Allocate colourmap.
+ 	 */
+-
+ 	fb_set_var(&fb->fb, &fb->fb.var);
++
+ 	ret = bcm2708_fb_set_par(&fb->fb);
++
+ 	if (ret)
+ 		return ret;
+ 
+-	print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n",
+-		    fbwidth, fbheight, fbdepth, fbswap);
+-
+ 	ret = register_framebuffer(&fb->fb);
+-	print_debug("BCM2708FB: register framebuffer (%d)\n", ret);
++
+ 	if (ret == 0)
+ 		goto out;
+ 
+-	print_debug("BCM2708FB: cannot register framebuffer (%d)\n", ret);
++	dev_warn(fb->fb.dev, "Unable to register framebuffer (%d)\n", ret);
+ out:
+ 	return ret;
+ }
+@@ -777,10 +896,18 @@ static int bcm2708_fb_probe(struct platf
+ {
+ 	struct device_node *fw_np;
+ 	struct rpi_firmware *fw;
+-	struct bcm2708_fb *fb;
+-	int ret;
++	int ret, i;
++	u32 num_displays;
++	struct bcm2708_fb_dev *fbdev;
++	struct { u32 base, length; } gpu_mem;
++
++	fbdev = devm_kzalloc(&dev->dev, sizeof(*fbdev), GFP_KERNEL);
++
++	if (!fbdev)
++		return -ENOMEM;
+ 
+ 	fw_np = of_parse_phandle(dev->dev.of_node, "firmware", 0);
++
+ /* Remove comment when booting without Device Tree is no longer supported
+  *	if (!fw_np) {
+  *		dev_err(&dev->dev, "Missing firmware node\n");
+@@ -788,90 +915,154 @@ static int bcm2708_fb_probe(struct platf
+  *	}
+  */
+ 	fw = rpi_firmware_get(fw_np);
++	fbdev->fw = fw;
++
+ 	if (!fw)
+ 		return -EPROBE_DEFER;
+ 
+-	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
+-	if (!fb) {
+-		ret = -ENOMEM;
+-		goto free_region;
++	ret = rpi_firmware_property(fw,
++				    RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS,
++				    &num_displays, sizeof(u32));
++
++	/* If we fail to get the number of displays, or it returns 0, then
++	 * assume old firmware that doesn't have the mailbox call, so just
++	 * set one display
++	 */
++	if (ret || num_displays == 0) {
++		num_displays = 1;
++		dev_err(&dev->dev,
++			"Unable to determine number of FB's. Assuming 1\n");
++		ret = 0;
++	} else {
++		fbdev->firmware_supports_multifb = 1;
++	}
++
++	if (num_displays > MAX_FRAMEBUFFERS) {
++		dev_warn(&dev->dev,
++			 "More displays reported from firmware than supported in driver (%u vs %u)",
++			 num_displays, MAX_FRAMEBUFFERS);
++		num_displays = MAX_FRAMEBUFFERS;
+ 	}
+ 
+-	fb->fw = fw;
+-	bcm2708_fb_debugfs_init(fb);
++	dev_info(&dev->dev, "FB found %d display(s)\n", num_displays);
++
++	/* Set up the DMA information. Note we have just one set of DMA
++	 * parameters to work with all the FB's so requires synchronising when
++	 * being used
++	 */
++
++	mutex_init(&fbdev->dma_mutex);
+ 
+-	fb->cb_base = dma_alloc_wc(&dev->dev, SZ_64K,
+-					     &fb->cb_handle, GFP_KERNEL);
+-	if (!fb->cb_base) {
++	fbdev->cb_base = dma_alloc_wc(&dev->dev, SZ_64K,
++						&fbdev->cb_handle,
++						GFP_KERNEL);
++	if (!fbdev->cb_base) {
+ 		dev_err(&dev->dev, "cannot allocate DMA CBs\n");
+ 		ret = -ENOMEM;
+ 		goto free_fb;
+ 	}
+ 
+-	pr_info("BCM2708FB: allocated DMA memory %pad\n", &fb->cb_handle);
+-
+ 	ret = bcm_dma_chan_alloc(BCM_DMA_FEATURE_BULK,
+-				 &fb->dma_chan_base, &fb->dma_irq);
++				 &fbdev->dma_chan_base,
++				 &fbdev->dma_irq);
+ 	if (ret < 0) {
+-		dev_err(&dev->dev, "couldn't allocate a DMA channel\n");
++		dev_err(&dev->dev, "Couldn't allocate a DMA channel\n");
+ 		goto free_cb;
+ 	}
+-	fb->dma_chan = ret;
++	fbdev->dma_chan = ret;
+ 
+-	ret = request_irq(fb->dma_irq, bcm2708_fb_dma_irq,
+-			  0, "bcm2708_fb dma", fb);
++	ret = request_irq(fbdev->dma_irq, bcm2708_fb_dma_irq,
++			  0, "bcm2708_fb DMA", fbdev);
+ 	if (ret) {
+-		pr_err("%s: failed to request DMA irq\n", __func__);
++		dev_err(&dev->dev,
++			"Failed to request DMA irq\n");
+ 		goto free_dma_chan;
+ 	}
+ 
+-	pr_info("BCM2708FB: allocated DMA channel %d\n", fb->dma_chan);
++	rpi_firmware_property(fbdev->fw,
++			      RPI_FIRMWARE_GET_VC_MEMORY,
++			      &gpu_mem, sizeof(gpu_mem));
++
++	for (i = 0; i < num_displays; i++) {
++		struct bcm2708_fb *fb = &fbdev->displays[i];
++
++		fb->display_settings.display_num = i;
++		fb->dev = dev;
++		fb->fb.device = &dev->dev;
++		fb->fbdev = fbdev;
++
++		fb->gpu.base = gpu_mem.base;
++		fb->gpu.length = gpu_mem.length;
++
++		if (fbdev->firmware_supports_multifb) {
++			ret = rpi_firmware_property(fw,
++						    RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_SETTINGS,
++						    &fb->display_settings,
++						    GET_DISPLAY_SETTINGS_PAYLOAD_SIZE);
++		} else {
++			memset(&fb->display_settings, 0,
++			       sizeof(fb->display_settings));
++		}
+ 
+-	fb->dev = dev;
+-	fb->fb.device = &dev->dev;
++		ret = bcm2708_fb_register(fb);
+ 
+-	/* failure here isn't fatal, but we'll fail in vc_mem_copy if
+-	 * fb->gpu is not valid
+-	 */
+-	rpi_firmware_property(fb->fw, RPI_FIRMWARE_GET_VC_MEMORY, &fb->gpu,
+-			      sizeof(fb->gpu));
++		if (ret == 0) {
++			bcm2708_fb_debugfs_init(fb);
+ 
+-	ret = bcm2708_fb_register(fb);
+-	if (ret == 0) {
+-		platform_set_drvdata(dev, fb);
+-		goto out;
++			fbdev->num_displays++;
++
++			dev_info(&dev->dev,
++				 "Registered framebuffer for display %u, size %ux%u\n",
++				 fb->display_settings.display_num,
++				 fb->fb.var.xres,
++				 fb->fb.var.yres);
++		} else {
++			// Use this to flag if this FB entry is in use.
++			fb->fbdev = NULL;
++		}
++	}
++
++	// Did we actually successfully create any FB's?
++	if (fbdev->num_displays) {
++		init_waitqueue_head(&fbdev->dma_waitq);
++		platform_set_drvdata(dev, fbdev);
++		return ret;
+ 	}
+ 
+ free_dma_chan:
+-	bcm_dma_chan_free(fb->dma_chan);
++	bcm_dma_chan_free(fbdev->dma_chan);
+ free_cb:
+-	dma_free_wc(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle);
++	dma_free_wc(&dev->dev, SZ_64K, fbdev->cb_base,
++			      fbdev->cb_handle);
+ free_fb:
+-	kfree(fb);
+-free_region:
+ 	dev_err(&dev->dev, "probe failed, err %d\n", ret);
+-out:
++
+ 	return ret;
+ }
+ 
+ static int bcm2708_fb_remove(struct platform_device *dev)
+ {
+-	struct bcm2708_fb *fb = platform_get_drvdata(dev);
++	struct bcm2708_fb_dev *fbdev = platform_get_drvdata(dev);
++	int i;
+ 
+ 	platform_set_drvdata(dev, NULL);
+ 
+-	if (fb->fb.screen_base)
+-		iounmap(fb->fb.screen_base);
+-	unregister_framebuffer(&fb->fb);
+-
+-	dma_free_wc(&dev->dev, SZ_64K, fb->cb_base, fb->cb_handle);
+-	bcm_dma_chan_free(fb->dma_chan);
+-
+-	bcm2708_fb_debugfs_deinit(fb);
++	for (i = 0; i < fbdev->num_displays; i++) {
++		if (fbdev->displays[i].fb.screen_base)
++			iounmap(fbdev->displays[i].fb.screen_base);
++
++		if (fbdev->displays[i].fbdev) {
++			unregister_framebuffer(&fbdev->displays[i].fb);
++			bcm2708_fb_debugfs_deinit(&fbdev->displays[i]);
++		}
++	}
+ 
+-	free_irq(fb->dma_irq, fb);
++	dma_free_wc(&dev->dev, SZ_64K, fbdev->cb_base,
++			      fbdev->cb_handle);
++	bcm_dma_chan_free(fbdev->dma_chan);
++	free_irq(fbdev->dma_irq, fbdev);
+ 
+-	kfree(fb);
++	mutex_destroy(&fbdev->dma_mutex);
+ 
+ 	return 0;
+ }
+@@ -886,10 +1077,10 @@ static struct platform_driver bcm2708_fb
+ 	.probe = bcm2708_fb_probe,
+ 	.remove = bcm2708_fb_remove,
+ 	.driver = {
+-		   .name = DRIVER_NAME,
+-		   .owner = THIS_MODULE,
+-		   .of_match_table = bcm2708_fb_of_match_table,
+-		   },
++		  .name = DRIVER_NAME,
++		  .owner = THIS_MODULE,
++		  .of_match_table = bcm2708_fb_of_match_table,
++		  },
+ };
+ 
+ static int __init bcm2708_fb_init(void)
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -106,9 +106,15 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_VIRTUAL_OFFSET =         0x00040009,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_OVERSCAN =               0x0004000a,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_PALETTE =                0x0004000b,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_LAYER =                  0x0004000c,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_TRANSFORM =              0x0004000d,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_VSYNC =                  0x0004000e,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF =               0x0004000f,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF =            0x00040010,
+ 	RPI_FIRMWARE_FRAMEBUFFER_RELEASE =                    0x00048001,
++	RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM =            0x00048013,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS =           0x00040013,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_SETTINGS =       0x00040014,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_PHYSICAL_WIDTH_HEIGHT = 0x00044003,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_WIDTH_HEIGHT =  0x00044004,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_DEPTH =                 0x00044005,
+@@ -117,6 +123,8 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_VIRTUAL_OFFSET =        0x00044009,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_OVERSCAN =              0x0004400a,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_PALETTE =               0x0004400b,
++	RPI_FIRMWARE_FRAMEBUFFER_TEST_LAYER =                 0x0004400c,
++	RPI_FIRMWARE_FRAMEBUFFER_TEST_TRANSFORM =             0x0004400d,
+ 	RPI_FIRMWARE_FRAMEBUFFER_TEST_VSYNC =                 0x0004400e,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT =  0x00048003,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT =   0x00048004,
+@@ -127,9 +135,12 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET =         0x00048009,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_OVERSCAN =               0x0004800a,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE =                0x0004800b,
++
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_TOUCHBUF =               0x0004801f,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF =            0x00048020,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC =                  0x0004800e,
++	RPI_FIRMWARE_FRAMEBUFFER_SET_LAYER =                  0x0004800c,
++	RPI_FIRMWARE_FRAMEBUFFER_SET_TRANSFORM =              0x0004800d,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT =              0x0004800f,
+ 
+ 	RPI_FIRMWARE_VCHIQ_INIT =                             0x00048010,
+@@ -138,6 +149,8 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_GET_DMA_CHANNELS =                       0x00060001,
+ };
+ 
++#define GET_DISPLAY_SETTINGS_PAYLOAD_SIZE 64
++
+ #if IS_ENABLED(CONFIG_RASPBERRYPI_FIRMWARE)
+ int rpi_firmware_property(struct rpi_firmware *fw,
+ 			  u32 tag, void *data, size_t len);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0043-fbdev-add-FBIOCOPYAREA-ioctl.patch b/target/linux/bcm27xx/patches-5.10/950-0043-fbdev-add-FBIOCOPYAREA-ioctl.patch
new file mode 100644
index 0000000000..75e3aea2d7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0043-fbdev-add-FBIOCOPYAREA-ioctl.patch
@@ -0,0 +1,337 @@
+From 6005247285065235845f233077bbeedb19a484c7 Mon Sep 17 00:00:00 2001
+From: Siarhei Siamashka <siarhei.siamashka@gmail.com>
+Date: Mon, 17 Jun 2013 13:32:11 +0300
+Subject: [PATCH] fbdev: add FBIOCOPYAREA ioctl
+
+Based on the patch authored by Ali Gholami Rudi at
+    https://lkml.org/lkml/2009/7/13/153
+
+Provide an ioctl for userspace applications, but only if this operation
+is hardware accelerated (otherwide it does not make any sense).
+
+Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
+
+bcm2708_fb: Add ioctl for reading gpu memory through dma
+
+video: bcm2708_fb: Add compat_ioctl support.
+
+When using a 64 bit kernel with 32 bit userspace we need
+compat ioctl handling for FBIODMACOPY as one of the
+parameters is a pointer.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/video/fbdev/bcm2708_fb.c | 170 ++++++++++++++++++++++++++++++-
+ drivers/video/fbdev/core/fbmem.c |  35 +++++++
+ include/uapi/linux/fb.h          |  12 +++
+ 3 files changed, 213 insertions(+), 4 deletions(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -32,8 +32,10 @@
+ #include <linux/printk.h>
+ #include <linux/console.h>
+ #include <linux/debugfs.h>
++#include <linux/uaccess.h>
+ #include <linux/io.h>
+ #include <linux/dma-mapping.h>
++#include <linux/cred.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ #include <linux/mutex.h>
+ 
+@@ -184,9 +186,6 @@ static int bcm2708_fb_debugfs_init(struc
+ 
+ 	fb->debugfs_subdir = debugfs_create_dir(buf, fb->debugfs_dir);
+ 
+-	debugfs_create_regset32("stats", 0444, fb->debugfs_dir,
+-				&fb->stats.regset);
+-
+ 	if (!fb->debugfs_subdir) {
+ 		dev_warn(fb->fb.dev, "%s: could not create debugfs entry %u\n",
+ 			 __func__, fb->display_settings.display_num);
+@@ -603,7 +602,110 @@ static int bcm2708_fb_pan_display(struct
+ 	return result;
+ }
+ 
+-static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
++static void dma_memcpy(struct bcm2708_fb *fb, dma_addr_t dst, dma_addr_t src,
++		       int size)
++{
++	struct bcm2708_fb_dev *fbdev = fb->fbdev;
++	struct bcm2708_dma_cb *cb = fbdev->cb_base;
++	int burst_size = (fbdev->dma_chan == 0) ? 8 : 2;
++
++	cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH |
++		   BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
++		   BCM2708_DMA_D_INC;
++	cb->dst = dst;
++	cb->src = src;
++	cb->length = size;
++	cb->stride = 0;
++	cb->pad[0] = 0;
++	cb->pad[1] = 0;
++	cb->next = 0;
++
++	// Not sure what to do if this gets a signal whilst waiting
++	if (mutex_lock_interruptible(&fbdev->dma_mutex))
++		return;
++
++	if (size < dma_busy_wait_threshold) {
++		bcm_dma_start(fbdev->dma_chan_base, fbdev->cb_handle);
++		bcm_dma_wait_idle(fbdev->dma_chan_base);
++	} else {
++		void __iomem *local_dma_chan = fbdev->dma_chan_base;
++
++		cb->info |= BCM2708_DMA_INT_EN;
++		bcm_dma_start(fbdev->dma_chan_base, fbdev->cb_handle);
++		while (bcm_dma_is_busy(local_dma_chan)) {
++			wait_event_interruptible(fbdev->dma_waitq,
++						 !bcm_dma_is_busy(local_dma_chan));
++		}
++		fbdev->dma_stats.dma_irqs++;
++	}
++	fbdev->dma_stats.dma_copies++;
++
++	mutex_unlock(&fbdev->dma_mutex);
++}
++
++/* address with no aliases */
++#define INTALIAS_NORMAL(x) ((x) & ~0xc0000000)
++/* cache coherent but non-allocating in L1 and L2 */
++#define INTALIAS_L1L2_NONALLOCATING(x) (((x) & ~0xc0000000) | 0x80000000)
++
++static long vc_mem_copy(struct bcm2708_fb *fb, struct fb_dmacopy *ioparam)
++{
++	size_t size = PAGE_SIZE;
++	u32 *buf = NULL;
++	dma_addr_t bus_addr;
++	long rc = 0;
++	size_t offset;
++
++	/* restrict this to root user */
++	if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) {
++		rc = -EFAULT;
++		goto out;
++	}
++
++	if (!fb->gpu.base || !fb->gpu.length) {
++		pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n",
++		       __func__, fb->gpu.base, fb->gpu.length);
++		return -EFAULT;
++	}
++
++	if (INTALIAS_NORMAL(ioparam->src) < fb->gpu.base ||
++	    INTALIAS_NORMAL(ioparam->src) >= fb->gpu.base + fb->gpu.length) {
++		pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__,
++		       INTALIAS_NORMAL(ioparam->src), fb->gpu.base,
++		       fb->gpu.base + fb->gpu.length);
++		return -EFAULT;
++	}
++
++	buf = dma_alloc_coherent(fb->fb.device, PAGE_ALIGN(size), &bus_addr,
++				 GFP_ATOMIC);
++	if (!buf) {
++		pr_err("[%s]: failed to dma_alloc_coherent(%zd)\n", __func__,
++		       size);
++		rc = -ENOMEM;
++		goto out;
++	}
++
++	for (offset = 0; offset < ioparam->length; offset += size) {
++		size_t remaining = ioparam->length - offset;
++		size_t s = min(size, remaining);
++		u8 *p = (u8 *)((uintptr_t)ioparam->src + offset);
++		u8 *q = (u8 *)ioparam->dst + offset;
++
++		dma_memcpy(fb, bus_addr,
++			   INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
++		if (copy_to_user(q, buf, s) != 0) {
++			pr_err("[%s]: failed to copy-to-user\n", __func__);
++			rc = -EFAULT;
++			goto out;
++		}
++	}
++out:
++	if (buf)
++		dma_free_coherent(fb->fb.device, PAGE_ALIGN(size), buf,
++				  bus_addr);
++	return rc;
++}
++
+ static int bcm2708_ioctl(struct fb_info *info, unsigned int cmd,
+ 			 unsigned long arg)
+ {
+@@ -619,6 +721,21 @@ static int bcm2708_ioctl(struct fb_info
+ 					    RPI_FIRMWARE_FRAMEBUFFER_SET_VSYNC,
+ 					    &dummy, sizeof(dummy));
+ 		break;
++
++	case FBIODMACOPY:
++	{
++		struct fb_dmacopy ioparam;
++		/* Get the parameter data.
++		 */
++		if (copy_from_user
++		    (&ioparam, (void *)arg, sizeof(ioparam))) {
++			pr_err("[%s]: failed to copy-from-user\n", __func__);
++			ret = -EFAULT;
++			break;
++		}
++		ret = vc_mem_copy(fb, &ioparam);
++		break;
++	}
+ 	default:
+ 		dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd);
+ 		return -ENOTTY;
+@@ -629,6 +746,48 @@ static int bcm2708_ioctl(struct fb_info
+ 
+ 	return ret;
+ }
++
++#ifdef CONFIG_COMPAT
++struct fb_dmacopy32 {
++	compat_uptr_t dst;
++	__u32 src;
++	__u32 length;
++};
++
++#define FBIODMACOPY32		_IOW('z', 0x22, struct fb_dmacopy32)
++
++static int bcm2708_compat_ioctl(struct fb_info *info, unsigned int cmd,
++				unsigned long arg)
++{
++	struct bcm2708_fb *fb = to_bcm2708(info);
++	int ret;
++
++	switch (cmd) {
++	case FBIODMACOPY32:
++	{
++		struct fb_dmacopy32 param32;
++		struct fb_dmacopy param;
++		/* Get the parameter data.
++		 */
++		if (copy_from_user(&param32, (void *)arg, sizeof(param32))) {
++			pr_err("[%s]: failed to copy-from-user\n", __func__);
++			ret = -EFAULT;
++			break;
++		}
++		param.dst = compat_ptr(param32.dst);
++		param.src = param32.src;
++		param.length = param32.length;
++		ret = vc_mem_copy(fb, &param);
++		break;
++	}
++	default:
++		ret = bcm2708_ioctl(info, cmd, arg);
++		break;
++	}
++	return ret;
++}
++#endif
++
+ static void bcm2708_fb_fillrect(struct fb_info *info,
+ 				const struct fb_fillrect *rect)
+ {
+@@ -821,6 +980,9 @@ static struct fb_ops bcm2708_fb_ops = {
+ 	.fb_imageblit = bcm2708_fb_imageblit,
+ 	.fb_pan_display = bcm2708_fb_pan_display,
+ 	.fb_ioctl = bcm2708_ioctl,
++#ifdef CONFIG_COMPAT
++	.fb_compat_ioctl = bcm2708_compat_ioctl,
++#endif
+ };
+ 
+ static int bcm2708_fb_register(struct bcm2708_fb *fb)
+--- a/drivers/video/fbdev/core/fbmem.c
++++ b/drivers/video/fbdev/core/fbmem.c
+@@ -1079,6 +1079,30 @@ fb_blank(struct fb_info *info, int blank
+ }
+ EXPORT_SYMBOL(fb_blank);
+ 
++static int fb_copyarea_user(struct fb_info *info,
++			    struct fb_copyarea *copy)
++{
++	int ret = 0;
++	lock_fb_info(info);
++	if (copy->dx >= info->var.xres ||
++	    copy->sx >= info->var.xres ||
++	    copy->width > info->var.xres ||
++	    copy->dy >= info->var.yres ||
++	    copy->sy >= info->var.yres ||
++	    copy->height > info->var.yres ||
++	    copy->dx + copy->width > info->var.xres ||
++	    copy->sx + copy->width > info->var.xres ||
++	    copy->dy + copy->height > info->var.yres ||
++	    copy->sy + copy->height > info->var.yres) {
++		ret = -EINVAL;
++		goto out;
++	}
++	info->fbops->fb_copyarea(info, copy);
++out:
++	unlock_fb_info(info);
++	return ret;
++}
++
+ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
+ 			unsigned long arg)
+ {
+@@ -1087,6 +1111,7 @@ static long do_fb_ioctl(struct fb_info *
+ 	struct fb_fix_screeninfo fix;
+ 	struct fb_cmap cmap_from;
+ 	struct fb_cmap_user cmap;
++	struct fb_copyarea copy;
+ 	void __user *argp = (void __user *)arg;
+ 	long ret = 0;
+ 
+@@ -1162,6 +1187,15 @@ static long do_fb_ioctl(struct fb_info *
+ 		unlock_fb_info(info);
+ 		console_unlock();
+ 		break;
++	case FBIOCOPYAREA:
++		if (info->flags & FBINFO_HWACCEL_COPYAREA) {
++			/* only provide this ioctl if it is accelerated */
++			if (copy_from_user(&copy, argp, sizeof(copy)))
++				return -EFAULT;
++			ret = fb_copyarea_user(info, &copy);
++			break;
++		}
++		/* fall through */
+ 	default:
+ 		lock_fb_info(info);
+ 		fb = info->fbops;
+@@ -1307,6 +1341,7 @@ static long fb_compat_ioctl(struct file
+ 	case FBIOPAN_DISPLAY:
+ 	case FBIOGET_CON2FBMAP:
+ 	case FBIOPUT_CON2FBMAP:
++	case FBIOCOPYAREA:
+ 		arg = (unsigned long) compat_ptr(arg);
+ 		fallthrough;
+ 	case FBIOBLANK:
+--- a/include/uapi/linux/fb.h
++++ b/include/uapi/linux/fb.h
+@@ -35,6 +35,12 @@
+ #define FBIOPUT_MODEINFO        0x4617
+ #define FBIOGET_DISPINFO        0x4618
+ #define FBIO_WAITFORVSYNC	_IOW('F', 0x20, __u32)
++/*
++ * HACK: use 'z' in order not to clash with any other ioctl numbers which might
++ * be concurrently added to the mainline kernel
++ */
++#define FBIOCOPYAREA		_IOW('z', 0x21, struct fb_copyarea)
++#define FBIODMACOPY 		_IOW('z', 0x22, struct fb_dmacopy)
+ 
+ #define FB_TYPE_PACKED_PIXELS		0	/* Packed Pixels	*/
+ #define FB_TYPE_PLANES			1	/* Non interleaved planes */
+@@ -348,6 +354,12 @@ struct fb_copyarea {
+ 	__u32 sy;
+ };
+ 
++struct fb_dmacopy {
++	void *dst;
++	__u32 src;
++	__u32 length;
++};
++
+ struct fb_fillrect {
+ 	__u32 dx;	/* screen-relative */
+ 	__u32 dy;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0044-Speed-up-console-framebuffer-imageblit-function.patch b/target/linux/bcm27xx/patches-5.10/950-0044-Speed-up-console-framebuffer-imageblit-function.patch
new file mode 100644
index 0000000000..f46a793d1d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0044-Speed-up-console-framebuffer-imageblit-function.patch
@@ -0,0 +1,209 @@
+From cac14f80f1e41f9a977c3cd84b0b3b73740818f8 Mon Sep 17 00:00:00 2001
+From: Harm Hanemaaijer <fgenfb@yahoo.com>
+Date: Thu, 20 Jun 2013 20:21:39 +0200
+Subject: [PATCH] Speed up console framebuffer imageblit function
+
+Especially on platforms with a slower CPU but a relatively high
+framebuffer fill bandwidth, like current ARM devices, the existing
+console monochrome imageblit function used to draw console text is
+suboptimal for common pixel depths such as 16bpp and 32bpp. The existing
+code is quite general and can deal with several pixel depths. By creating
+special case functions for 16bpp and 32bpp, by far the most common pixel
+formats used on modern systems, a significant speed-up is attained
+which can be readily felt on ARM-based devices like the Raspberry Pi
+and the Allwinner platform, but should help any platform using the
+fb layer.
+
+The special case functions allow constant folding, eliminating a number
+of instructions including divide operations, and allow the use of an
+unrolled loop, eliminating instructions with a variable shift size,
+reducing source memory access instructions, and eliminating excessive
+branching. These unrolled loops also allow much better code optimization
+by the C compiler. The code that selects which optimized variant is used
+is also simplified, eliminating integer divide instructions.
+
+The speed-up, measured by timing 'cat file.txt' in the console, varies
+between 40% and 70%, when testing on the Raspberry Pi and Allwinner
+ARM-based platforms, depending on font size and the pixel depth, with
+the greater benefit for 32bpp.
+
+Signed-off-by: Harm Hanemaaijer <fgenfb@yahoo.com>
+---
+ drivers/video/fbdev/core/cfbimgblt.c | 152 ++++++++++++++++++++++++++-
+ 1 file changed, 147 insertions(+), 5 deletions(-)
+
+--- a/drivers/video/fbdev/core/cfbimgblt.c
++++ b/drivers/video/fbdev/core/cfbimgblt.c
+@@ -28,6 +28,11 @@
+  *
+  *  Also need to add code to deal with cards endians that are different than
+  *  the native cpu endians. I also need to deal with MSB position in the word.
++ *  Modified by Harm Hanemaaijer (fgenfb@yahoo.com) 2013:
++ *  - Provide optimized versions of fast_imageblit for 16 and 32bpp that are
++ *    significantly faster than the previous implementation.
++ *  - Simplify the fast/slow_imageblit selection code, avoiding integer
++ *    divides.
+  */
+ #include <linux/module.h>
+ #include <linux/string.h>
+@@ -262,6 +267,133 @@ static inline void fast_imageblit(const
+ 	}
+ }	
+ 	
++/*
++ * Optimized fast_imageblit for bpp == 16. ppw = 2, bit_mask = 3 folded
++ * into the code, main loop unrolled.
++ */
++
++static inline void fast_imageblit16(const struct fb_image *image,
++				    struct fb_info *p, u8 __iomem * dst1,
++				    u32 fgcolor, u32 bgcolor)
++{
++	u32 fgx = fgcolor, bgx = bgcolor;
++	u32 spitch = (image->width + 7) / 8;
++	u32 end_mask, eorx;
++	const char *s = image->data, *src;
++	u32 __iomem *dst;
++	const u32 *tab = NULL;
++	int i, j, k;
++
++	tab = fb_be_math(p) ? cfb_tab16_be : cfb_tab16_le;
++
++	fgx <<= 16;
++	bgx <<= 16;
++	fgx |= fgcolor;
++	bgx |= bgcolor;
++
++	eorx = fgx ^ bgx;
++	k = image->width / 2;
++
++	for (i = image->height; i--;) {
++		dst = (u32 __iomem *) dst1;
++		src = s;
++
++		j = k;
++		while (j >= 4) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 6) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 4) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 2) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[bits & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			src++;
++			j -= 4;
++		}
++		if (j != 0) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 6) & 3];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			if (j >= 2) {
++				end_mask = tab[(bits >> 4) & 3];
++				FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++				if (j == 3) {
++					end_mask = tab[(bits >> 2) & 3];
++					FB_WRITEL((end_mask & eorx) ^ bgx, dst);
++				}
++			}
++		}
++		dst1 += p->fix.line_length;
++		s += spitch;
++	}
++}
++
++/*
++ * Optimized fast_imageblit for bpp == 32. ppw = 1, bit_mask = 1 folded
++ * into the code, main loop unrolled.
++ */
++
++static inline void fast_imageblit32(const struct fb_image *image,
++				    struct fb_info *p, u8 __iomem * dst1,
++				    u32 fgcolor, u32 bgcolor)
++{
++	u32 fgx = fgcolor, bgx = bgcolor;
++	u32 spitch = (image->width + 7) / 8;
++	u32 end_mask, eorx;
++	const char *s = image->data, *src;
++	u32 __iomem *dst;
++	const u32 *tab = NULL;
++	int i, j, k;
++
++	tab = cfb_tab32;
++
++	eorx = fgx ^ bgx;
++	k = image->width;
++
++	for (i = image->height; i--;) {
++		dst = (u32 __iomem *) dst1;
++		src = s;
++
++		j = k;
++		while (j >= 8) {
++			u8 bits = *src;
++			end_mask = tab[(bits >> 7) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 6) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 5) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 4) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 3) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 2) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[(bits >> 1) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			end_mask = tab[bits & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++			src++;
++			j -= 8;
++		}
++		if (j != 0) {
++			u32 bits = (u32) * src;
++			while (j > 1) {
++				end_mask = tab[(bits >> 7) & 1];
++				FB_WRITEL((end_mask & eorx) ^ bgx, dst++);
++				bits <<= 1;
++				j--;
++			}
++			end_mask = tab[(bits >> 7) & 1];
++			FB_WRITEL((end_mask & eorx) ^ bgx, dst);
++		}
++		dst1 += p->fix.line_length;
++		s += spitch;
++	}
++}
++
+ void cfb_imageblit(struct fb_info *p, const struct fb_image *image)
+ {
+ 	u32 fgcolor, bgcolor, start_index, bitstart, pitch_index = 0;
+@@ -294,11 +426,21 @@ void cfb_imageblit(struct fb_info *p, co
+ 			bgcolor = image->bg_color;
+ 		}	
+ 		
+-		if (32 % bpp == 0 && !start_index && !pitch_index && 
+-		    ((width & (32/bpp-1)) == 0) &&
+-		    bpp >= 8 && bpp <= 32) 			
+-			fast_imageblit(image, p, dst1, fgcolor, bgcolor);
+-		else 
++		if (!start_index && !pitch_index) {
++			if (bpp == 32)
++				fast_imageblit32(image, p, dst1, fgcolor,
++						 bgcolor);
++			else if (bpp == 16 && (width & 1) == 0)
++				fast_imageblit16(image, p, dst1, fgcolor,
++						 bgcolor);
++			else if (bpp == 8 && (width & 3) == 0)
++				fast_imageblit(image, p, dst1, fgcolor,
++					       bgcolor);
++			else
++				slow_imageblit(image, p, dst1, fgcolor,
++					       bgcolor,
++					       start_index, pitch_index);
++		} else
+ 			slow_imageblit(image, p, dst1, fgcolor, bgcolor,
+ 					start_index, pitch_index);
+ 	} else
diff --git a/target/linux/bcm27xx/patches-5.10/950-0045-dmaengine-Add-support-for-BCM2708.patch b/target/linux/bcm27xx/patches-5.10/950-0045-dmaengine-Add-support-for-BCM2708.patch
new file mode 100644
index 0000000000..55d9a91dd6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0045-dmaengine-Add-support-for-BCM2708.patch
@@ -0,0 +1,640 @@
+From 9ac0f4ce3beaad7700af1e771776d12ae7813f97 Mon Sep 17 00:00:00 2001
+From: Florian Meier <florian.meier@koalo.de>
+Date: Fri, 22 Nov 2013 14:22:53 +0100
+Subject: [PATCH] dmaengine: Add support for BCM2708
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add support for DMA controller of BCM2708 as used in the Raspberry Pi.
+Currently it only supports cyclic DMA.
+
+Signed-off-by: Florian Meier <florian.meier@koalo.de>
+
+dmaengine: expand functionality by supporting scatter/gather transfers sdhci-bcm2708 and dma.c: fix for LITE channels
+
+DMA: fix cyclic LITE length overflow bug
+
+dmaengine: bcm2708: Remove chancnt affectations
+
+Mirror bcm2835-dma.c commit 9eba5536a7434c69d8c185d4bd1c70734d92287d:
+chancnt is already filled by dma_async_device_register, which uses the channel
+list to know how much channels there is.
+
+Since it's already filled, we can safely remove it from the drivers' probe
+function.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: overwrite dreq only if it is not set
+
+dreq is set when the DMA channel is fetched from Device Tree.
+slave_id is set using dmaengine_slave_config().
+Only overwrite dreq with slave_id if it is not set.
+
+dreq/slave_id in the cyclic DMA case is not touched, because I don't
+have hardware to test with.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: do device registration in the board file
+
+Don't register the device in the driver. Do it in the board file.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: don't restrict DT support to ARCH_BCM2835
+
+Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now.
+Add Device Tree support to the non ARCH_BCM2835 case.
+Use the same driver name regardless of architecture.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270x_DT: add bcm2835-dma entry
+
+Add Device Tree entry for bcm2835-dma.
+The entry doesn't contain any resources since they are handled
+by the arch/arm/mach-bcm270x/dma.c driver.
+In non-DT mode, don't add the device in the board file.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2708-dmaengine: Add debug options
+
+BCM270x: Add memory and irq resources to dmaengine device and DT
+
+Prepare for merging of the legacy DMA API arch driver dma.c
+with bcm2708-dmaengine by adding memory and irq resources both
+to platform file device and Device Tree node.
+Don't use BCM_DMAMAN_DRIVER_NAME so we don't have to include mach/dma.h
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Merge with arch dma.c driver and disable dma.c
+
+Merge the legacy DMA API driver with bcm2708-dmaengine.
+This is done so we can use bcm2708_fb on ARCH_BCM2835 (mailbox
+driver is also needed).
+
+Changes to the dma.c code:
+- Use BIT() macro.
+- Cutdown some comments to one line.
+- Add mutex to vc_dmaman and use this, since the dev lock is locked
+  during probing of the engine part.
+- Add global g_dmaman variable since drvdata is used by the engine part.
+- Restructure for readability:
+  vc_dmaman_chan_alloc()
+  vc_dmaman_chan_free()
+  bcm_dma_chan_free()
+- Restructure bcm_dma_chan_alloc() to simplify error handling.
+- Use device irq resources instead of hardcoded bcm_dma_irqs table.
+- Remove dev_dmaman_register() and code it directly.
+- Remove dev_dmaman_deregister() and code it directly.
+- Simplify bcm_dmaman_probe() using devm_* functions.
+- Get dmachans from DT if available.
+- Keep 'dma.dmachans' module argument name for backwards compatibility.
+
+Make it available on ARCH_BCM2835 as well.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: set residue_granularity field
+
+bcm2708-dmaengine supports residue reporting at burst level
+but didn't report this via the residue_granularity field.
+
+Without this field set properly we get playback issues with I2S cards.
+
+dmaengine: bcm2708-dmaengine: Fix memory leak when stopping a running transfer
+
+bcm2708-dmaengine: Use more DMA channels (but not 12)
+
+1) Only the bcm2708_fb drivers uses the legacy DMA API, and
+it requires a BULK-capable channel, so all other types
+(FAST, NORMAL and LITE) can be made available to the regular
+DMA API.
+
+2) DMA channels 11-14 share an interrupt. The driver can't
+handle this, so don't use channels 12-14 (12 was used, probably
+because it appears to have an interrupt, but in reality that
+interrupt is for activity on ANY channel). This may explain
+a lockup encountered when running out of DMA channels.
+
+The combined effect of this patch is to leave 7 DMA channels
+available + channel 0 for bcm2708_fb via the legacy API.
+
+See: https://github.com/raspberrypi/linux/issues/1110
+     https://github.com/raspberrypi/linux/issues/1108
+
+dmaengine: bcm2708: Make legacy API available for bcm2835-dma
+
+bcm2708_fb uses the legacy DMA API, so in order to start using
+bcm2835-dma, bcm2835-dma has to support the legacy API. Make this
+possible by exporting bcm_dmaman_probe() and bcm_dmaman_remove().
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Change DT compatible string
+
+Both bcm2835-dma and bcm2708-dmaengine have the same compatible string.
+So change compatible to "brcm,bcm2708-dma".
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+dmaengine: bcm2708: Remove driver but keep legacy API
+
+Dropping non-DT support means we don't need this driver,
+but we still need the legacy DMA API.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2708-dmaengine - Fix arm64 portability/build issues
+
+dma-bcm2708: Fix module compilation of CONFIG_DMA_BCM2708
+
+bcm2708-dmaengine.c defines functions like bcm_dma_start which are
+defined as well in dma-bcm2708.h as inline versions when
+CONFIG_DMA_BCM2708 is not defined. This works fine when
+CONFIG_DMA_BCM2708 is built in, but when it is selected as module build
+fails with redefinition errors because in the build system when
+CONFIG_DMA_BCM2708 is selected as module, the macro becomes
+CONFIG_DMA_BCM2708_MODULE.
+
+This patch makes the header use CONFIG_DMA_BCM2708_MODULE too when
+available.
+
+Fixes https://github.com/raspberrypi/linux/issues/2056
+
+Signed-off-by: Andrei Gherzan <andrei@gherzan.com>
+---
+ drivers/dma/Kconfig                       |   6 +-
+ drivers/dma/Makefile                      |   1 +
+ drivers/dma/bcm2708-dmaengine.c           | 281 ++++++++++++++++++++++
+ include/linux/platform_data/dma-bcm2708.h | 143 +++++++++++
+ 4 files changed, 430 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/dma/bcm2708-dmaengine.c
+ create mode 100644 include/linux/platform_data/dma-bcm2708.h
+
+--- a/drivers/dma/Kconfig
++++ b/drivers/dma/Kconfig
+@@ -134,7 +134,7 @@ config COH901318
+ 
+ config DMA_BCM2835
+ 	tristate "BCM2835 DMA engine support"
+-	depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709
++	depends on ARCH_BCM2835
+ 	select DMA_ENGINE
+ 	select DMA_VIRTUAL_CHANNELS
+ 
+@@ -652,6 +652,10 @@ config UNIPHIER_XDMAC
+ 	  UniPhier platform. This DMA controller can transfer data from
+ 	  memory to memory, memory to peripheral and peripheral to memory.
+ 
++config DMA_BCM2708
++	tristate "BCM2708 DMA legacy API support"
++	depends on DMA_BCM2835
++
+ config XGENE_DMA
+ 	tristate "APM X-Gene DMA support"
+ 	depends on ARCH_XGENE || COMPILE_TEST
+--- a/drivers/dma/Makefile
++++ b/drivers/dma/Makefile
+@@ -21,6 +21,7 @@ obj-$(CONFIG_AT_XDMAC) += at_xdmac.o
+ obj-$(CONFIG_AXI_DMAC) += dma-axi-dmac.o
+ obj-$(CONFIG_BCM_SBA_RAID) += bcm-sba-raid.o
+ obj-$(CONFIG_COH901318) += coh901318.o coh901318_lli.o
++obj-$(CONFIG_DMA_BCM2708) += bcm2708-dmaengine.o
+ obj-$(CONFIG_DMA_BCM2835) += bcm2835-dma.o
+ obj-$(CONFIG_DMA_JZ4780) += dma-jz4780.o
+ obj-$(CONFIG_DMA_SA11X0) += sa11x0-dma.o
+--- /dev/null
++++ b/drivers/dma/bcm2708-dmaengine.c
+@@ -0,0 +1,281 @@
++/*
++ * BCM2708 legacy DMA API
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ */
++
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/list.h>
++#include <linux/module.h>
++#include <linux/platform_data/dma-bcm2708.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/io.h>
++#include <linux/spinlock.h>
++
++#include "virt-dma.h"
++
++#define CACHE_LINE_MASK 31
++#define DEFAULT_DMACHAN_BITMAP 0x10  /* channel 4 only */
++
++/* valid only for channels 0 - 14, 15 has its own base address */
++#define BCM2708_DMA_CHAN(n)	((n) << 8) /* base address */
++#define BCM2708_DMA_CHANIO(dma_base, n) \
++	((void __iomem *)((char *)(dma_base) + BCM2708_DMA_CHAN(n)))
++
++struct vc_dmaman {
++	void __iomem *dma_base;
++	u32 chan_available; /* bitmap of available channels */
++	u32 has_feature[BCM_DMA_FEATURE_COUNT]; /* bitmap of feature presence */
++	struct mutex lock;
++};
++
++static struct device *dmaman_dev;	/* we assume there's only one! */
++static struct vc_dmaman *g_dmaman;	/* DMA manager */
++
++/* DMA Auxiliary Functions */
++
++/* A DMA buffer on an arbitrary boundary may separate a cache line into a
++   section inside the DMA buffer and another section outside it.
++   Even if we flush DMA buffers from the cache there is always the chance that
++   during a DMA someone will access the part of a cache line that is outside
++   the DMA buffer - which will then bring in unwelcome data.
++   Without being able to dictate our own buffer pools we must insist that
++   DMA buffers consist of a whole number of cache lines.
++*/
++extern int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len)
++{
++	int i;
++
++	for (i = 0; i < sg_len; i++) {
++		if (sg_ptr[i].offset & CACHE_LINE_MASK ||
++		    sg_ptr[i].length & CACHE_LINE_MASK)
++			return 0;
++	}
++
++	return 1;
++}
++EXPORT_SYMBOL_GPL(bcm_sg_suitable_for_dma);
++
++extern void bcm_dma_start(void __iomem *dma_chan_base,
++			  dma_addr_t control_block)
++{
++	dsb(sy);	/* ARM data synchronization (push) operation */
++
++	writel(control_block, dma_chan_base + BCM2708_DMA_ADDR);
++	writel(BCM2708_DMA_ACTIVE, dma_chan_base + BCM2708_DMA_CS);
++}
++EXPORT_SYMBOL_GPL(bcm_dma_start);
++
++extern void bcm_dma_wait_idle(void __iomem *dma_chan_base)
++{
++	dsb(sy);
++
++	/* ugly busy wait only option for now */
++	while (readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE)
++		cpu_relax();
++}
++EXPORT_SYMBOL_GPL(bcm_dma_wait_idle);
++
++extern bool bcm_dma_is_busy(void __iomem *dma_chan_base)
++{
++	dsb(sy);
++
++	return readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_is_busy);
++
++/* Complete an ongoing DMA (assuming its results are to be ignored)
++   Does nothing if there is no DMA in progress.
++   This routine waits for the current AXI transfer to complete before
++   terminating the current DMA. If the current transfer is hung on a DREQ used
++   by an uncooperative peripheral the AXI transfer may never complete.	In this
++   case the routine times out and return a non-zero error code.
++   Use of this routine doesn't guarantee that the ongoing or aborted DMA
++   does not produce an interrupt.
++*/
++extern int bcm_dma_abort(void __iomem *dma_chan_base)
++{
++	unsigned long int cs;
++	int rc = 0;
++
++	cs = readl(dma_chan_base + BCM2708_DMA_CS);
++
++	if (BCM2708_DMA_ACTIVE & cs) {
++		long int timeout = 10000;
++
++		/* write 0 to the active bit - pause the DMA */
++		writel(0, dma_chan_base + BCM2708_DMA_CS);
++
++		/* wait for any current AXI transfer to complete */
++		while (0 != (cs & BCM2708_DMA_ISPAUSED) && --timeout >= 0)
++			cs = readl(dma_chan_base + BCM2708_DMA_CS);
++
++		if (0 != (cs & BCM2708_DMA_ISPAUSED)) {
++			/* we'll un-pause when we set of our next DMA */
++			rc = -ETIMEDOUT;
++
++		} else if (BCM2708_DMA_ACTIVE & cs) {
++			/* terminate the control block chain */
++			writel(0, dma_chan_base + BCM2708_DMA_NEXTCB);
++
++			/* abort the whole DMA */
++			writel(BCM2708_DMA_ABORT | BCM2708_DMA_ACTIVE,
++			       dma_chan_base + BCM2708_DMA_CS);
++		}
++	}
++
++	return rc;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_abort);
++
++ /* DMA Manager Device Methods */
++
++static void vc_dmaman_init(struct vc_dmaman *dmaman, void __iomem *dma_base,
++			   u32 chans_available)
++{
++	dmaman->dma_base = dma_base;
++	dmaman->chan_available = chans_available;
++	dmaman->has_feature[BCM_DMA_FEATURE_FAST_ORD] = 0x0c;  /* 2 & 3 */
++	dmaman->has_feature[BCM_DMA_FEATURE_BULK_ORD] = 0x01;  /* 0 */
++	dmaman->has_feature[BCM_DMA_FEATURE_NORMAL_ORD] = 0xfe;  /* 1 to 7 */
++	dmaman->has_feature[BCM_DMA_FEATURE_LITE_ORD] = 0x7f00;  /* 8 to 14 */
++}
++
++static int vc_dmaman_chan_alloc(struct vc_dmaman *dmaman,
++				unsigned required_feature_set)
++{
++	u32 chans;
++	int chan = 0;
++	int feature;
++
++	chans = dmaman->chan_available;
++	for (feature = 0; feature < BCM_DMA_FEATURE_COUNT; feature++)
++		/* select the subset of available channels with the desired
++		   features */
++		if (required_feature_set & (1 << feature))
++			chans &= dmaman->has_feature[feature];
++
++	if (!chans)
++		return -ENOENT;
++
++	/* return the ordinal of the first channel in the bitmap */
++	while (chans != 0 && (chans & 1) == 0) {
++		chans >>= 1;
++		chan++;
++	}
++	/* claim the channel */
++	dmaman->chan_available &= ~(1 << chan);
++
++	return chan;
++}
++
++static int vc_dmaman_chan_free(struct vc_dmaman *dmaman, int chan)
++{
++	if (chan < 0)
++		return -EINVAL;
++
++	if ((1 << chan) & dmaman->chan_available)
++		return -EIDRM;
++
++	dmaman->chan_available |= (1 << chan);
++
++	return 0;
++}
++
++/* DMA Manager Monitor */
++
++extern int bcm_dma_chan_alloc(unsigned required_feature_set,
++			      void __iomem **out_dma_base, int *out_dma_irq)
++{
++	struct vc_dmaman *dmaman = g_dmaman;
++	struct platform_device *pdev = to_platform_device(dmaman_dev);
++	struct resource *r;
++	int chan;
++
++	if (!dmaman_dev)
++		return -ENODEV;
++
++	mutex_lock(&dmaman->lock);
++	chan = vc_dmaman_chan_alloc(dmaman, required_feature_set);
++	if (chan < 0)
++		goto out;
++
++	r = platform_get_resource(pdev, IORESOURCE_IRQ, (unsigned int)chan);
++	if (!r) {
++		dev_err(dmaman_dev, "failed to get irq for DMA channel %d\n",
++			chan);
++		vc_dmaman_chan_free(dmaman, chan);
++		chan = -ENOENT;
++		goto out;
++	}
++
++	*out_dma_base = BCM2708_DMA_CHANIO(dmaman->dma_base, chan);
++	*out_dma_irq = r->start;
++	dev_dbg(dmaman_dev,
++		"Legacy API allocated channel=%d, base=%p, irq=%i\n",
++		chan, *out_dma_base, *out_dma_irq);
++
++out:
++	mutex_unlock(&dmaman->lock);
++
++	return chan;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_chan_alloc);
++
++extern int bcm_dma_chan_free(int channel)
++{
++	struct vc_dmaman *dmaman = g_dmaman;
++	int rc;
++
++	if (!dmaman_dev)
++		return -ENODEV;
++
++	mutex_lock(&dmaman->lock);
++	rc = vc_dmaman_chan_free(dmaman, channel);
++	mutex_unlock(&dmaman->lock);
++
++	return rc;
++}
++EXPORT_SYMBOL_GPL(bcm_dma_chan_free);
++
++int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base,
++		     u32 chans_available)
++{
++	struct device *dev = &pdev->dev;
++	struct vc_dmaman *dmaman;
++
++	dmaman = devm_kzalloc(dev, sizeof(*dmaman), GFP_KERNEL);
++	if (!dmaman)
++		return -ENOMEM;
++
++	mutex_init(&dmaman->lock);
++	vc_dmaman_init(dmaman, base, chans_available);
++	g_dmaman = dmaman;
++	dmaman_dev = dev;
++
++	dev_info(dev, "DMA legacy API manager, dmachans=0x%x\n",
++		 chans_available);
++
++	return 0;
++}
++EXPORT_SYMBOL(bcm_dmaman_probe);
++
++int bcm_dmaman_remove(struct platform_device *pdev)
++{
++	dmaman_dev = NULL;
++
++	return 0;
++}
++EXPORT_SYMBOL(bcm_dmaman_remove);
++
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/include/linux/platform_data/dma-bcm2708.h
+@@ -0,0 +1,143 @@
++/*
++ *  Copyright (C) 2010 Broadcom
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#ifndef _PLAT_BCM2708_DMA_H
++#define _PLAT_BCM2708_DMA_H
++
++/* DMA CS Control and Status bits */
++#define BCM2708_DMA_ACTIVE	BIT(0)
++#define BCM2708_DMA_INT		BIT(2)
++#define BCM2708_DMA_ISPAUSED	BIT(4)  /* Pause requested or not active */
++#define BCM2708_DMA_ISHELD	BIT(5)  /* Is held by DREQ flow control */
++#define BCM2708_DMA_ERR		BIT(8)
++#define BCM2708_DMA_ABORT	BIT(30) /* stop current CB, go to next, WO */
++#define BCM2708_DMA_RESET	BIT(31) /* WO, self clearing */
++
++/* DMA control block "info" field bits */
++#define BCM2708_DMA_INT_EN	BIT(0)
++#define BCM2708_DMA_TDMODE	BIT(1)
++#define BCM2708_DMA_WAIT_RESP	BIT(3)
++#define BCM2708_DMA_D_INC	BIT(4)
++#define BCM2708_DMA_D_WIDTH	BIT(5)
++#define BCM2708_DMA_D_DREQ	BIT(6)
++#define BCM2708_DMA_S_INC	BIT(8)
++#define BCM2708_DMA_S_WIDTH	BIT(9)
++#define BCM2708_DMA_S_DREQ	BIT(10)
++
++#define	BCM2708_DMA_BURST(x)	(((x) & 0xf) << 12)
++#define	BCM2708_DMA_PER_MAP(x)	((x) << 16)
++#define	BCM2708_DMA_WAITS(x)	(((x) & 0x1f) << 21)
++
++#define BCM2708_DMA_DREQ_EMMC	11
++#define BCM2708_DMA_DREQ_SDHOST	13
++
++#define BCM2708_DMA_CS		0x00 /* Control and Status */
++#define BCM2708_DMA_ADDR	0x04
++/* the current control block appears in the following registers - read only */
++#define BCM2708_DMA_INFO	0x08
++#define BCM2708_DMA_SOURCE_AD	0x0c
++#define BCM2708_DMA_DEST_AD	0x10
++#define BCM2708_DMA_NEXTCB	0x1C
++#define BCM2708_DMA_DEBUG	0x20
++
++#define BCM2708_DMA4_CS		(BCM2708_DMA_CHAN(4) + BCM2708_DMA_CS)
++#define BCM2708_DMA4_ADDR	(BCM2708_DMA_CHAN(4) + BCM2708_DMA_ADDR)
++
++#define BCM2708_DMA_TDMODE_LEN(w, h) ((h) << 16 | (w))
++
++/* When listing features we can ask for when allocating DMA channels give
++   those with higher priority smaller ordinal numbers */
++#define BCM_DMA_FEATURE_FAST_ORD	0
++#define BCM_DMA_FEATURE_BULK_ORD	1
++#define BCM_DMA_FEATURE_NORMAL_ORD	2
++#define BCM_DMA_FEATURE_LITE_ORD	3
++#define BCM_DMA_FEATURE_FAST		BIT(BCM_DMA_FEATURE_FAST_ORD)
++#define BCM_DMA_FEATURE_BULK		BIT(BCM_DMA_FEATURE_BULK_ORD)
++#define BCM_DMA_FEATURE_NORMAL		BIT(BCM_DMA_FEATURE_NORMAL_ORD)
++#define BCM_DMA_FEATURE_LITE		BIT(BCM_DMA_FEATURE_LITE_ORD)
++#define BCM_DMA_FEATURE_COUNT		4
++
++struct bcm2708_dma_cb {
++	u32 info;
++	u32 src;
++	u32 dst;
++	u32 length;
++	u32 stride;
++	u32 next;
++	u32 pad[2];
++};
++
++struct scatterlist;
++struct platform_device;
++
++#if defined(CONFIG_DMA_BCM2708) || defined(CONFIG_DMA_BCM2708_MODULE)
++
++int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len);
++void bcm_dma_start(void __iomem *dma_chan_base, dma_addr_t control_block);
++void bcm_dma_wait_idle(void __iomem *dma_chan_base);
++bool bcm_dma_is_busy(void __iomem *dma_chan_base);
++int bcm_dma_abort(void __iomem *dma_chan_base);
++
++/* return channel no or -ve error */
++int bcm_dma_chan_alloc(unsigned preferred_feature_set,
++		       void __iomem **out_dma_base, int *out_dma_irq);
++int bcm_dma_chan_free(int channel);
++
++int bcm_dmaman_probe(struct platform_device *pdev, void __iomem *base,
++		     u32 chans_available);
++int bcm_dmaman_remove(struct platform_device *pdev);
++
++#else /* CONFIG_DMA_BCM2708 */
++
++static inline int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr,
++					  int sg_len)
++{
++	return 0;
++}
++
++static inline void bcm_dma_start(void __iomem *dma_chan_base,
++				 dma_addr_t control_block) { }
++
++static inline void bcm_dma_wait_idle(void __iomem *dma_chan_base) { }
++
++static inline bool bcm_dma_is_busy(void __iomem *dma_chan_base)
++{
++	return false;
++}
++
++static inline int bcm_dma_abort(void __iomem *dma_chan_base)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dma_chan_alloc(unsigned preferred_feature_set,
++				     void __iomem **out_dma_base,
++				     int *out_dma_irq)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dma_chan_free(int channel)
++{
++	return -EINVAL;
++}
++
++static inline int bcm_dmaman_probe(struct platform_device *pdev,
++				   void __iomem *base, u32 chans_available)
++{
++	return 0;
++}
++
++static inline int bcm_dmaman_remove(struct platform_device *pdev)
++{
++	return 0;
++}
++
++#endif /* CONFIG_DMA_BCM2708 || CONFIG_DMA_BCM2708_MODULE */
++
++#endif /* _PLAT_BCM2708_DMA_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0046-MMC-added-alternative-MMC-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0046-MMC-added-alternative-MMC-driver.patch
new file mode 100644
index 0000000000..aeba685ae2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0046-MMC-added-alternative-MMC-driver.patch
@@ -0,0 +1,1933 @@
+From 364272893877af2ac5f331010d6f6f088c198e31 Mon Sep 17 00:00:00 2001
+From: gellert <gellert@raspberrypi.org>
+Date: Fri, 15 Aug 2014 16:35:06 +0100
+Subject: [PATCH] MMC: added alternative MMC driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+mmc: Disable CMD23 transfers on all cards
+
+Pending wire-level investigation of these types of transfers
+and associated errors on bcm2835-mmc, disable for now. Fallback of
+CMD18/CMD25 transfers will be used automatically by the MMC layer.
+
+Reported/Tested-by: Gellert Weisz <gellert@raspberrypi.org>
+
+mmc: bcm2835-mmc: enable DT support for all architectures
+
+Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now.
+Enable Device Tree support for all architectures.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+mmc: bcm2835-mmc: fix probe error handling
+
+Probe error handling is broken in several places.
+Simplify error handling by using device managed functions.
+Replace pr_{err,info} with dev_{err,info}.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2835-mmc: Add locks when accessing sdhost registers
+
+bcm2835-mmc: Add range of debug options for slowing things down
+
+bcm2835-mmc: Add option to disable some delays
+
+bcm2835-mmc: Add option to disable MMC_QUIRK_BLK_NO_CMD23
+
+bcm2835-mmc: Default to disabling MMC_QUIRK_BLK_NO_CMD23
+
+bcm2835-mmc: Adding overclocking option
+
+Allow a different clock speed to be substitued for a requested 50MHz.
+This option is exposed using the "overclock_50" DT parameter.
+Note that the mmc interface is restricted to EVEN integer divisions of
+250MHz, and the highest sensible option is 63 (250/4 = 62.5), the
+next being 125 (250/2) which is much too high.
+
+Use at your own risk.
+
+bcm2835-mmc: Round up the overclock, so 62 works for 62.5Mhz
+
+Also only warn once for each overclock setting.
+
+mmc: bcm2835-mmc: Make available on ARCH_BCM2835
+
+Make the bcm2835-mmc driver available for use on ARCH_BCM2835.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270x_DT: add bcm2835-mmc entry
+
+Add Device Tree entry for bcm2835-mmc.
+In non-DT mode, don't add the device in the board file.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+bcm2835-mmc: Don't overwrite MMC capabilities from DT
+
+bcm2835-mmc: Don't override bus width capabilities from devicetree
+
+Take out the force setting of the MMC_CAP_4_BIT_DATA host capability
+so that the result read from devicetree via mmc_of_parse() is
+preserved.
+
+bcm2835-mmc: Only claim one DMA channel
+
+With both MMC controllers enabled there are few DMA channels left. The
+bcm2835-mmc driver only uses DMA in one direction at a time, so it
+doesn't need to claim two channels.
+
+See: https://github.com/raspberrypi/linux/issues/1327
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-mmc: New timer API
+
+mmc: bcm2835-mmc: Support underclocking
+
+Support underclocking of the SD bus using the max-frequency DT property
+(which currently has no DT parameter). The sd_overclock parameter
+already provides another way to achieve the same thing which should be
+equivalent in end result, but it is a bug not to support max-frequency
+as well.
+
+See: https://github.com/raspberrypi/linux/issues/2350
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mmc/bcm2835: Recover from MMC_SEND_EXT_CSD
+
+If the user issues an "mmc extcsd read", the SD controller receives
+what it thinks is a SEND_IF_COND command with an unexpected data block.
+The resulting operations leave the FSM stuck in READWAIT, a state which
+persists until the MMC framework resets the controller, by which point
+the root filesystem is likely to have been unmounted.
+
+A less heavyweight solution is to detect the condition and nudge the
+FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.
+
+N.B. This workaround was essentially discovered by accident and without
+a full understanding the inner workings of the controller, so it is
+fortunate that the "fix" only modifies error paths.
+
+See: https://github.com/raspberrypi/linux/issues/2728
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-mmc: Fix DMA channel leak
+
+The BCM2835 MMC host driver requests a DMA channel on probe but neglects
+to release the channel in the probe error path and on driver unbind.
+
+I'm seeing this happen on every boot of the Compute Module 3: On first
+driver probe, DMA channel 2 is allocated and then leaked with a "could
+not get clk, deferring probe" message. On second driver probe, channel 4
+is allocated.
+
+Fix it.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+
+bcm2835-mmc: Fix struct mmc_host leak on probe
+
+The BCM2835 MMC host driver requests the bus address of the host's
+register map on probe.  If that fails, the driver leaks the struct
+mmc_host allocated earlier.
+
+Fix it.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+
+bcm2835-mmc: Fix duplicate free_irq() on remove
+
+The BCM2835 MMC host driver requests its interrupt as a device-managed
+resource, so the interrupt is automatically freed after the driver is
+unbound.
+
+However on driver unbind, bcm2835_mmc_remove() frees the interrupt
+explicitly to avoid invocation of the interrupt handler after driver
+structures have been torn down.
+
+The interrupt is thus freed twice, leading to a WARN splat in
+__free_irq().  Fix by not requesting the interrupt as a device-managed
+resource.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+
+bcm2835-mmc: Handle mmc_add_host() errors
+
+The BCM2835 MMC host driver calls mmc_add_host() but doesn't check its
+return value.  Errors occurring in that function are therefore not
+handled.  Fix it.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+
+bcm2835-mmc: Deduplicate reset of driver data on remove
+
+The BCM2835 MMC host driver sets the device's driver data pointer to
+NULL on ->remove() even though the driver core subsequently does the
+same in __device_release_driver().  Drop the duplicate assignment.
+
+Signed-off-by: Lukas Wunner <lukas@wunner.de>
+Cc: Frank Pavlic <f.pavlic@kunbus.de>
+
+bcm2835_mmc: Remove vestigial threaded IRQ
+
+With SDIO processing now managed by the MMC framework with a
+workqueue, the bcm2835_mmc driver no longer needs a threaded
+IRQ.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+Add missing dma_unmap_sg calls to free relevant swiotlb bounce buffers.
+This prevents DMA leaks.
+
+Signed-off-by: Yaroslav Rosomakho <yaroslavros@gmail.com>
+
+Limit max_req_size under arm64 (or any other platform that uses swiotlb) to prevent potential buffer overflow due to bouncing.
+
+Signed-off-by: Yaroslav Rosomakho <yaroslavros@gmail.com>
+---
+ drivers/mmc/core/block.c       |   28 +-
+ drivers/mmc/core/core.c        |    3 +-
+ drivers/mmc/core/quirks.h      |    8 +
+ drivers/mmc/host/Kconfig       |   29 +
+ drivers/mmc/host/Makefile      |    1 +
+ drivers/mmc/host/bcm2835-mmc.c | 1576 ++++++++++++++++++++++++++++++++
+ include/linux/mmc/card.h       |    2 +
+ 7 files changed, 1643 insertions(+), 4 deletions(-)
+ create mode 100644 drivers/mmc/host/bcm2835-mmc.c
+
+--- a/drivers/mmc/core/block.c
++++ b/drivers/mmc/core/block.c
+@@ -165,6 +165,13 @@ static DEFINE_MUTEX(open_lock);
+ module_param(perdev_minors, int, 0444);
+ MODULE_PARM_DESC(perdev_minors, "Minors numbers to allocate per device");
+ 
++/*
++ * Allow quirks to be overridden for the current card
++ */
++static char *card_quirks;
++module_param(card_quirks, charp, 0644);
++MODULE_PARM_DESC(card_quirks, "Force the use of the indicated quirks (a bitfield)");
++
+ static inline int mmc_blk_part_switch(struct mmc_card *card,
+ 				      unsigned int part_type);
+ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
+@@ -2898,6 +2905,7 @@ static int mmc_blk_probe(struct mmc_card
+ {
+ 	struct mmc_blk_data *md, *part_md;
+ 	char cap_str[10];
++	char quirk_str[24];
+ 
+ 	/*
+ 	 * Check that the card supports the command class(es) we need.
+@@ -2905,7 +2913,16 @@ static int mmc_blk_probe(struct mmc_card
+ 	if (!(card->csd.cmdclass & CCC_BLOCK_READ))
+ 		return -ENODEV;
+ 
+-	mmc_fixup_device(card, mmc_blk_fixups);
++	if (card_quirks) {
++		unsigned long quirks;
++		if (kstrtoul(card_quirks, 0, &quirks) == 0)
++			card->quirks = (unsigned int)quirks;
++		else
++			pr_err("mmc_block: Invalid card_quirks parameter '%s'\n",
++			       card_quirks);
++	}
++	else
++		mmc_fixup_device(card, mmc_blk_fixups);
+ 
+ 	card->complete_wq = alloc_workqueue("mmc_complete",
+ 					WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
+@@ -2920,9 +2937,14 @@ static int mmc_blk_probe(struct mmc_card
+ 
+ 	string_get_size((u64)get_capacity(md->disk), 512, STRING_UNITS_2,
+ 			cap_str, sizeof(cap_str));
+-	pr_info("%s: %s %s %s %s\n",
++	if (card->quirks)
++		snprintf(quirk_str, sizeof(quirk_str),
++			 " (quirks 0x%08x)", card->quirks);
++	else
++		quirk_str[0] = '\0';
++	pr_info("%s: %s %s %s%s%s\n",
+ 		md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
+-		cap_str, md->read_only ? "(ro)" : "");
++		cap_str, md->read_only ? " (ro)" : "", quirk_str);
+ 
+ 	if (mmc_blk_alloc_parts(card, md))
+ 		goto out;
+--- a/drivers/mmc/core/core.c
++++ b/drivers/mmc/core/core.c
+@@ -1874,7 +1874,8 @@ EXPORT_SYMBOL(mmc_erase);
+ 
+ int mmc_can_erase(struct mmc_card *card)
+ {
+-	if (card->csd.cmdclass & CCC_ERASE && card->erase_size)
++	if (card->csd.cmdclass & CCC_ERASE && card->erase_size &&
++	    !(card->quirks & MMC_QUIRK_ERASE_BROKEN))
+ 		return 1;
+ 	return 0;
+ }
+--- a/drivers/mmc/core/quirks.h
++++ b/drivers/mmc/core/quirks.h
+@@ -99,6 +99,14 @@ static const struct mmc_fixup __maybe_un
+ 	MMC_FIXUP("V10016", CID_MANFID_KINGSTON, CID_OEMID_ANY, add_quirk_mmc,
+ 		  MMC_QUIRK_TRIM_BROKEN),
+ 
++	/*
++	 *  On some Kingston SD cards, multiple erases of less than 64
++	 *  sectors can cause corruption.
++	 */
++	MMC_FIXUP("SD16G", 0x41, 0x3432, add_quirk, MMC_QUIRK_ERASE_BROKEN),
++	MMC_FIXUP("SD32G", 0x41, 0x3432, add_quirk, MMC_QUIRK_ERASE_BROKEN),
++	MMC_FIXUP("SD64G", 0x41, 0x3432, add_quirk, MMC_QUIRK_ERASE_BROKEN),
++
+ 	END_FIXUP
+ };
+ 
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -5,6 +5,35 @@
+ 
+ comment "MMC/SD/SDIO Host Controller Drivers"
+ 
++config MMC_BCM2835_MMC
++	tristate "MMC support on BCM2835"
++	depends on MACH_BCM2708 || MACH_BCM2709 || ARCH_BCM2835
++	help
++	  This selects the MMC Interface on BCM2835.
++
++	  If you have a controller with this interface, say Y or M here.
++
++	  If unsure, say N.
++
++config MMC_BCM2835_DMA
++	bool "DMA support on BCM2835 Arasan controller"
++	depends on MMC_BCM2835_MMC
++	help
++	  Enable DMA support on the Arasan SDHCI controller in Broadcom 2708
++	  based chips.
++
++	  If unsure, say N.
++
++config MMC_BCM2835_PIO_DMA_BARRIER
++	int "Block count limit for PIO transfers"
++	depends on MMC_BCM2835_MMC && MMC_BCM2835_DMA
++	range 0 256
++	default 2
++	help
++	  The inclusive limit in bytes under which PIO will be used instead of DMA
++
++	  If unsure, say 2 here.
++
+ config MMC_DEBUG
+ 	bool "MMC host drivers debugging"
+ 	depends on MMC != n
+--- a/drivers/mmc/host/Makefile
++++ b/drivers/mmc/host/Makefile
+@@ -24,6 +24,7 @@ obj-$(CONFIG_MMC_SDHCI_F_SDH30)	+= sdhci
+ obj-$(CONFIG_MMC_SDHCI_MILBEAUT)	+= sdhci-milbeaut.o
+ obj-$(CONFIG_MMC_SDHCI_SPEAR)	+= sdhci-spear.o
+ obj-$(CONFIG_MMC_SDHCI_AM654)	+= sdhci_am654.o
++obj-$(CONFIG_MMC_BCM2835_MMC)	+= bcm2835-mmc.o
+ obj-$(CONFIG_MMC_WBSD)		+= wbsd.o
+ obj-$(CONFIG_MMC_AU1X)		+= au1xmmc.o
+ obj-$(CONFIG_MMC_ALCOR)	+= alcor.o
+--- /dev/null
++++ b/drivers/mmc/host/bcm2835-mmc.c
+@@ -0,0 +1,1576 @@
++/*
++ * BCM2835 MMC host driver.
++ *
++ * Author:      Gellert Weisz <gellert@raspberrypi.org>
++ *              Copyright 2014
++ *
++ * Based on
++ *  sdhci-bcm2708.c by Broadcom
++ *  sdhci-bcm2835.c by Stephen Warren and Oleksandr Tymoshenko
++ *  sdhci.c and sdhci-pci.c by Pierre Ossman
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms and conditions of the GNU General Public License,
++ * version 2, as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/delay.h>
++#include <linux/module.h>
++#include <linux/io.h>
++#include <linux/mmc/mmc.h>
++#include <linux/mmc/host.h>
++#include <linux/mmc/sd.h>
++#include <linux/scatterlist.h>
++#include <linux/of_address.h>
++#include <linux/of_irq.h>
++#include <linux/clk.h>
++#include <linux/platform_device.h>
++#include <linux/err.h>
++#include <linux/blkdev.h>
++#include <linux/dmaengine.h>
++#include <linux/dma-mapping.h>
++#include <linux/of_dma.h>
++#include <linux/swiotlb.h>
++
++#include "sdhci.h"
++
++
++#define DRIVER_NAME "mmc-bcm2835"
++
++#define DBG(f, x...) \
++pr_debug(DRIVER_NAME " [%s()]: " f, __func__, ## x)
++
++#ifndef CONFIG_MMC_BCM2835_DMA
++ #define FORCE_PIO
++#endif
++
++
++/* the inclusive limit in bytes under which PIO will be used instead of DMA */
++#ifdef CONFIG_MMC_BCM2835_PIO_DMA_BARRIER
++#define PIO_DMA_BARRIER CONFIG_MMC_BCM2835_PIO_DMA_BARRIER
++#else
++#define PIO_DMA_BARRIER 00
++#endif
++
++#define MIN_FREQ 400000
++#define TIMEOUT_VAL 0xE
++#define BCM2835_SDHCI_WRITE_DELAY(f)	(((2 * 1000000) / f) + 1)
++
++
++unsigned mmc_debug;
++unsigned mmc_debug2;
++
++struct bcm2835_host {
++	spinlock_t				lock;
++
++	void __iomem			*ioaddr;
++	u32						bus_addr;
++
++	struct mmc_host			*mmc;
++
++	u32						timeout;
++
++	int						clock;	/* Current clock speed */
++	u8						pwr;	/* Current voltage */
++
++	unsigned int			max_clk;		/* Max possible freq */
++	unsigned int			timeout_clk;	/* Timeout freq (KHz) */
++	unsigned int			clk_mul;		/* Clock Muliplier value */
++
++	struct tasklet_struct	finish_tasklet;		/* Tasklet structures */
++
++	struct timer_list		timer;			/* Timer for timeouts */
++
++	struct sg_mapping_iter	sg_miter;		/* SG state for PIO */
++	unsigned int			blocks;			/* remaining PIO blocks */
++
++	int						irq;			/* Device IRQ */
++
++
++	u32						ier;			/* cached registers */
++
++	struct mmc_request		*mrq;			/* Current request */
++	struct mmc_command		*cmd;			/* Current command */
++	struct mmc_data			*data;			/* Current data request */
++	unsigned int			data_early:1;		/* Data finished before cmd */
++
++	wait_queue_head_t		buf_ready_int;		/* Waitqueue for Buffer Read Ready interrupt */
++
++	u32						shadow;
++
++	/*DMA part*/
++	struct dma_chan			*dma_chan_rxtx;		/* DMA channel for reads and writes */
++	struct dma_slave_config		dma_cfg_rx;
++	struct dma_slave_config		dma_cfg_tx;
++	struct dma_async_tx_descriptor	*tx_desc;	/* descriptor */
++
++	bool					have_dma;
++	bool					use_dma;
++	bool					wait_for_dma;
++	/*end of DMA part*/
++
++	int						max_delay;	/* maximum length of time spent waiting */
++
++	int						flags;				/* Host attributes */
++#define SDHCI_REQ_USE_DMA	(1<<2)	/* Use DMA for this req. */
++#define SDHCI_DEVICE_DEAD	(1<<3)	/* Device unresponsive */
++#define SDHCI_AUTO_CMD12	(1<<6)	/* Auto CMD12 support */
++#define SDHCI_AUTO_CMD23	(1<<7)	/* Auto CMD23 support */
++#define SDHCI_SDIO_IRQ_ENABLED	(1<<9)	/* SDIO irq enabled */
++
++	u32				overclock_50;	/* frequency to use when 50MHz is requested (in MHz) */
++	u32				max_overclock;	/* Highest reported */
++};
++
++
++static inline void bcm2835_mmc_writel(struct bcm2835_host *host, u32 val, int reg, int from)
++{
++	unsigned delay;
++	lockdep_assert_held_once(&host->lock);
++	writel(val, host->ioaddr + reg);
++	udelay(BCM2835_SDHCI_WRITE_DELAY(max(host->clock, MIN_FREQ)));
++
++	delay = ((mmc_debug >> 16) & 0xf) << ((mmc_debug >> 20) & 0xf);
++	if (delay && !((1<<from) & mmc_debug2))
++		udelay(delay);
++}
++
++static inline void mmc_raw_writel(struct bcm2835_host *host, u32 val, int reg)
++{
++	unsigned delay;
++	lockdep_assert_held_once(&host->lock);
++	writel(val, host->ioaddr + reg);
++
++	delay = ((mmc_debug >> 24) & 0xf) << ((mmc_debug >> 28) & 0xf);
++	if (delay)
++		udelay(delay);
++}
++
++static inline u32 bcm2835_mmc_readl(struct bcm2835_host *host, int reg)
++{
++	lockdep_assert_held_once(&host->lock);
++	return readl(host->ioaddr + reg);
++}
++
++static inline void bcm2835_mmc_writew(struct bcm2835_host *host, u16 val, int reg)
++{
++	u32 oldval = (reg == SDHCI_COMMAND) ? host->shadow :
++		bcm2835_mmc_readl(host, reg & ~3);
++	u32 word_num = (reg >> 1) & 1;
++	u32 word_shift = word_num * 16;
++	u32 mask = 0xffff << word_shift;
++	u32 newval = (oldval & ~mask) | (val << word_shift);
++
++	if (reg == SDHCI_TRANSFER_MODE)
++		host->shadow = newval;
++	else
++		bcm2835_mmc_writel(host, newval, reg & ~3, 0);
++
++}
++
++static inline void bcm2835_mmc_writeb(struct bcm2835_host *host, u8 val, int reg)
++{
++	u32 oldval = bcm2835_mmc_readl(host, reg & ~3);
++	u32 byte_num = reg & 3;
++	u32 byte_shift = byte_num * 8;
++	u32 mask = 0xff << byte_shift;
++	u32 newval = (oldval & ~mask) | (val << byte_shift);
++
++	bcm2835_mmc_writel(host, newval, reg & ~3, 1);
++}
++
++
++static inline u16 bcm2835_mmc_readw(struct bcm2835_host *host, int reg)
++{
++	u32 val = bcm2835_mmc_readl(host, (reg & ~3));
++	u32 word_num = (reg >> 1) & 1;
++	u32 word_shift = word_num * 16;
++	u32 word = (val >> word_shift) & 0xffff;
++
++	return word;
++}
++
++static inline u8 bcm2835_mmc_readb(struct bcm2835_host *host, int reg)
++{
++	u32 val = bcm2835_mmc_readl(host, (reg & ~3));
++	u32 byte_num = reg & 3;
++	u32 byte_shift = byte_num * 8;
++	u32 byte = (val >> byte_shift) & 0xff;
++
++	return byte;
++}
++
++static void bcm2835_mmc_unsignal_irqs(struct bcm2835_host *host, u32 clear)
++{
++	u32 ier;
++
++	ier = bcm2835_mmc_readl(host, SDHCI_SIGNAL_ENABLE);
++	ier &= ~clear;
++	/* change which requests generate IRQs - makes no difference to
++	   the content of SDHCI_INT_STATUS, or the need to acknowledge IRQs */
++	bcm2835_mmc_writel(host, ier, SDHCI_SIGNAL_ENABLE, 2);
++}
++
++
++static void bcm2835_mmc_dumpregs(struct bcm2835_host *host)
++{
++	pr_debug(DRIVER_NAME ": =========== REGISTER DUMP (%s)===========\n",
++		mmc_hostname(host->mmc));
++
++	pr_debug(DRIVER_NAME ": Sys addr: 0x%08x | Version:  0x%08x\n",
++		bcm2835_mmc_readl(host, SDHCI_DMA_ADDRESS),
++		bcm2835_mmc_readw(host, SDHCI_HOST_VERSION));
++	pr_debug(DRIVER_NAME ": Blk size: 0x%08x | Blk cnt:  0x%08x\n",
++		bcm2835_mmc_readw(host, SDHCI_BLOCK_SIZE),
++		bcm2835_mmc_readw(host, SDHCI_BLOCK_COUNT));
++	pr_debug(DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n",
++		bcm2835_mmc_readl(host, SDHCI_ARGUMENT),
++		bcm2835_mmc_readw(host, SDHCI_TRANSFER_MODE));
++	pr_debug(DRIVER_NAME ": Present:  0x%08x | Host ctl: 0x%08x\n",
++		bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE),
++		bcm2835_mmc_readb(host, SDHCI_HOST_CONTROL));
++	pr_debug(DRIVER_NAME ": Power:    0x%08x | Blk gap:  0x%08x\n",
++		bcm2835_mmc_readb(host, SDHCI_POWER_CONTROL),
++		bcm2835_mmc_readb(host, SDHCI_BLOCK_GAP_CONTROL));
++	pr_debug(DRIVER_NAME ": Wake-up:  0x%08x | Clock:    0x%08x\n",
++		bcm2835_mmc_readb(host, SDHCI_WAKE_UP_CONTROL),
++		bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL));
++	pr_debug(DRIVER_NAME ": Timeout:  0x%08x | Int stat: 0x%08x\n",
++		bcm2835_mmc_readb(host, SDHCI_TIMEOUT_CONTROL),
++		bcm2835_mmc_readl(host, SDHCI_INT_STATUS));
++	pr_debug(DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n",
++		bcm2835_mmc_readl(host, SDHCI_INT_ENABLE),
++		bcm2835_mmc_readl(host, SDHCI_SIGNAL_ENABLE));
++	pr_debug(DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n",
++		bcm2835_mmc_readw(host, SDHCI_AUTO_CMD_STATUS),
++		bcm2835_mmc_readw(host, SDHCI_SLOT_INT_STATUS));
++	pr_debug(DRIVER_NAME ": Caps:     0x%08x | Caps_1:   0x%08x\n",
++		bcm2835_mmc_readl(host, SDHCI_CAPABILITIES),
++		bcm2835_mmc_readl(host, SDHCI_CAPABILITIES_1));
++	pr_debug(DRIVER_NAME ": Cmd:      0x%08x | Max curr: 0x%08x\n",
++		bcm2835_mmc_readw(host, SDHCI_COMMAND),
++		bcm2835_mmc_readl(host, SDHCI_MAX_CURRENT));
++	pr_debug(DRIVER_NAME ": Host ctl2: 0x%08x\n",
++		bcm2835_mmc_readw(host, SDHCI_HOST_CONTROL2));
++
++	pr_debug(DRIVER_NAME ": ===========================================\n");
++}
++
++
++static void bcm2835_mmc_reset(struct bcm2835_host *host, u8 mask)
++{
++	unsigned long timeout;
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++	bcm2835_mmc_writeb(host, mask, SDHCI_SOFTWARE_RESET);
++
++	if (mask & SDHCI_RESET_ALL)
++		host->clock = 0;
++
++	/* Wait max 100 ms */
++	timeout = 100;
++
++	/* hw clears the bit when it's done */
++	while (bcm2835_mmc_readb(host, SDHCI_SOFTWARE_RESET) & mask) {
++		if (timeout == 0) {
++			pr_err("%s: Reset 0x%x never completed.\n",
++				mmc_hostname(host->mmc), (int)mask);
++			bcm2835_mmc_dumpregs(host);
++			return;
++		}
++		timeout--;
++		spin_unlock_irqrestore(&host->lock, flags);
++		mdelay(1);
++		spin_lock_irqsave(&host->lock, flags);
++	}
++
++	if (100-timeout > 10 && 100-timeout > host->max_delay) {
++		host->max_delay = 100-timeout;
++		pr_warn("Warning: MMC controller hung for %d ms\n", host->max_delay);
++	}
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
++
++static void bcm2835_mmc_init(struct bcm2835_host *host, int soft)
++{
++	unsigned long flags;
++	if (soft)
++		bcm2835_mmc_reset(host, SDHCI_RESET_CMD|SDHCI_RESET_DATA);
++	else
++		bcm2835_mmc_reset(host, SDHCI_RESET_ALL);
++
++	host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT |
++		    SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT |
++		    SDHCI_INT_INDEX | SDHCI_INT_END_BIT | SDHCI_INT_CRC |
++		    SDHCI_INT_TIMEOUT | SDHCI_INT_DATA_END |
++		    SDHCI_INT_RESPONSE;
++
++	spin_lock_irqsave(&host->lock, flags);
++	bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 3);
++	bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 3);
++	spin_unlock_irqrestore(&host->lock, flags);
++
++	if (soft) {
++		/* force clock reconfiguration */
++		host->clock = 0;
++		bcm2835_mmc_set_ios(host->mmc, &host->mmc->ios);
++	}
++}
++
++
++
++static void bcm2835_mmc_finish_data(struct bcm2835_host *host);
++
++static void bcm2835_mmc_dma_complete(void *param)
++{
++	struct bcm2835_host *host = param;
++	struct dma_chan *dma_chan;
++	unsigned long flags;
++	u32 dir_data;
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	host->use_dma = false;
++
++	if (host->data) {
++		dma_chan = host->dma_chan_rxtx;
++		if (host->data->flags & MMC_DATA_WRITE)
++			dir_data = DMA_TO_DEVICE;
++		else
++			dir_data = DMA_FROM_DEVICE;
++		dma_unmap_sg(dma_chan->device->dev,
++		     host->data->sg, host->data->sg_len,
++		     dir_data);
++		if (! (host->data->flags & MMC_DATA_WRITE))
++			bcm2835_mmc_finish_data(host);
++	} else if (host->wait_for_dma) {
++		host->wait_for_dma = false;
++		tasklet_schedule(&host->finish_tasklet);
++	}
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_bcm2835_mmc_read_block_pio(struct bcm2835_host *host)
++{
++	unsigned long flags;
++	size_t blksize, len, chunk;
++
++	u32 uninitialized_var(scratch);
++	u8 *buf;
++
++	blksize = host->data->blksz;
++	chunk = 0;
++
++	local_irq_save(flags);
++
++	while (blksize) {
++		if (!sg_miter_next(&host->sg_miter))
++			BUG();
++
++		len = min(host->sg_miter.length, blksize);
++
++		blksize -= len;
++		host->sg_miter.consumed = len;
++
++		buf = host->sg_miter.addr;
++
++		while (len) {
++			if (chunk == 0) {
++				scratch = bcm2835_mmc_readl(host, SDHCI_BUFFER);
++				chunk = 4;
++			}
++
++			*buf = scratch & 0xFF;
++
++			buf++;
++			scratch >>= 8;
++			chunk--;
++			len--;
++		}
++	}
++
++	sg_miter_stop(&host->sg_miter);
++
++	local_irq_restore(flags);
++}
++
++static void bcm2835_bcm2835_mmc_write_block_pio(struct bcm2835_host *host)
++{
++	unsigned long flags;
++	size_t blksize, len, chunk;
++	u32 scratch;
++	u8 *buf;
++
++	blksize = host->data->blksz;
++	chunk = 0;
++	chunk = 0;
++	scratch = 0;
++
++	local_irq_save(flags);
++
++	while (blksize) {
++		if (!sg_miter_next(&host->sg_miter))
++			BUG();
++
++		len = min(host->sg_miter.length, blksize);
++
++		blksize -= len;
++		host->sg_miter.consumed = len;
++
++		buf = host->sg_miter.addr;
++
++		while (len) {
++			scratch |= (u32)*buf << (chunk * 8);
++
++			buf++;
++			chunk++;
++			len--;
++
++			if ((chunk == 4) || ((len == 0) && (blksize == 0))) {
++				mmc_raw_writel(host, scratch, SDHCI_BUFFER);
++				chunk = 0;
++				scratch = 0;
++			}
++		}
++	}
++
++	sg_miter_stop(&host->sg_miter);
++
++	local_irq_restore(flags);
++}
++
++
++static void bcm2835_mmc_transfer_pio(struct bcm2835_host *host)
++{
++	u32 mask;
++
++	BUG_ON(!host->data);
++
++	if (host->blocks == 0)
++		return;
++
++	if (host->data->flags & MMC_DATA_READ)
++		mask = SDHCI_DATA_AVAILABLE;
++	else
++		mask = SDHCI_SPACE_AVAILABLE;
++
++	while (bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE) & mask) {
++
++		if (host->data->flags & MMC_DATA_READ)
++			bcm2835_bcm2835_mmc_read_block_pio(host);
++		else
++			bcm2835_bcm2835_mmc_write_block_pio(host);
++
++		host->blocks--;
++
++		/* QUIRK used in sdhci.c removes the 'if' */
++		/* but it seems this is unnecessary */
++		if (host->blocks == 0)
++			break;
++
++
++	}
++}
++
++
++static void bcm2835_mmc_transfer_dma(struct bcm2835_host *host)
++{
++	u32 len, dir_data, dir_slave;
++	struct dma_async_tx_descriptor *desc = NULL;
++	struct dma_chan *dma_chan;
++
++
++	WARN_ON(!host->data);
++
++	if (!host->data)
++		return;
++
++	if (host->blocks == 0)
++		return;
++
++	dma_chan = host->dma_chan_rxtx;
++	if (host->data->flags & MMC_DATA_READ) {
++		dir_data = DMA_FROM_DEVICE;
++		dir_slave = DMA_DEV_TO_MEM;
++	} else {
++		dir_data = DMA_TO_DEVICE;
++		dir_slave = DMA_MEM_TO_DEV;
++	}
++
++	/* The parameters have already been validated, so this will not fail */
++	(void)dmaengine_slave_config(dma_chan,
++				     (dir_data == DMA_FROM_DEVICE) ?
++				     &host->dma_cfg_rx :
++				     &host->dma_cfg_tx);
++
++	BUG_ON(!dma_chan->device);
++	BUG_ON(!dma_chan->device->dev);
++	BUG_ON(!host->data->sg);
++
++	len = dma_map_sg(dma_chan->device->dev, host->data->sg,
++			 host->data->sg_len, dir_data);
++	if (len > 0) {
++		desc = dmaengine_prep_slave_sg(dma_chan, host->data->sg,
++					       len, dir_slave,
++					       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
++	} else {
++		dev_err(mmc_dev(host->mmc), "dma_map_sg returned zero length\n");
++	}
++	if (desc) {
++		unsigned long flags;
++		spin_lock_irqsave(&host->lock, flags);
++		bcm2835_mmc_unsignal_irqs(host, SDHCI_INT_DATA_AVAIL |
++						    SDHCI_INT_SPACE_AVAIL);
++		host->tx_desc = desc;
++		desc->callback = bcm2835_mmc_dma_complete;
++		desc->callback_param = host;
++		spin_unlock_irqrestore(&host->lock, flags);
++		dmaengine_submit(desc);
++		dma_async_issue_pending(dma_chan);
++	} else {
++		dma_unmap_sg(dma_chan->device->dev, host->data->sg, len, dir_data);
++	}
++
++}
++
++
++
++static void bcm2835_mmc_set_transfer_irqs(struct bcm2835_host *host)
++{
++	u32 pio_irqs = SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL;
++	u32 dma_irqs = SDHCI_INT_DMA_END | SDHCI_INT_ADMA_ERROR;
++
++	if (host->use_dma)
++		host->ier = (host->ier & ~pio_irqs) | dma_irqs;
++	else
++		host->ier = (host->ier & ~dma_irqs) | pio_irqs;
++
++	bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 4);
++	bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 4);
++}
++
++
++static void bcm2835_mmc_prepare_data(struct bcm2835_host *host, struct mmc_command *cmd)
++{
++	u8 count;
++	struct mmc_data *data = cmd->data;
++
++	WARN_ON(host->data);
++
++	if (data || (cmd->flags & MMC_RSP_BUSY)) {
++		count = TIMEOUT_VAL;
++		bcm2835_mmc_writeb(host, count, SDHCI_TIMEOUT_CONTROL);
++	}
++
++	if (!data)
++		return;
++
++	/* Sanity checks */
++	BUG_ON(data->blksz * data->blocks > 524288);
++	BUG_ON(data->blksz > host->mmc->max_blk_size);
++	BUG_ON(data->blocks > 65535);
++
++	host->data = data;
++	host->data_early = 0;
++	host->data->bytes_xfered = 0;
++
++
++	if (!(host->flags & SDHCI_REQ_USE_DMA)) {
++		int flags;
++
++		flags = SG_MITER_ATOMIC;
++		if (host->data->flags & MMC_DATA_READ)
++			flags |= SG_MITER_TO_SG;
++		else
++			flags |= SG_MITER_FROM_SG;
++		sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
++		host->blocks = data->blocks;
++	}
++
++	host->use_dma = host->have_dma && data->blocks > PIO_DMA_BARRIER;
++
++	bcm2835_mmc_set_transfer_irqs(host);
++
++	/* Set the DMA boundary value and block size */
++	bcm2835_mmc_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG,
++		data->blksz), SDHCI_BLOCK_SIZE);
++	bcm2835_mmc_writew(host, data->blocks, SDHCI_BLOCK_COUNT);
++
++	BUG_ON(!host->data);
++}
++
++static void bcm2835_mmc_set_transfer_mode(struct bcm2835_host *host,
++	struct mmc_command *cmd)
++{
++	u16 mode;
++	struct mmc_data *data = cmd->data;
++
++	if (data == NULL) {
++		/* clear Auto CMD settings for no data CMDs */
++		mode = bcm2835_mmc_readw(host, SDHCI_TRANSFER_MODE);
++		bcm2835_mmc_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 |
++				SDHCI_TRNS_AUTO_CMD23), SDHCI_TRANSFER_MODE);
++		return;
++	}
++
++	WARN_ON(!host->data);
++
++	mode = SDHCI_TRNS_BLK_CNT_EN;
++
++	if ((mmc_op_multi(cmd->opcode) || data->blocks > 1)) {
++		mode |= SDHCI_TRNS_MULTI;
++
++		/*
++		 * If we are sending CMD23, CMD12 never gets sent
++		 * on successful completion (so no Auto-CMD12).
++		 */
++		if (!host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD12))
++			mode |= SDHCI_TRNS_AUTO_CMD12;
++		else if (host->mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) {
++			mode |= SDHCI_TRNS_AUTO_CMD23;
++			bcm2835_mmc_writel(host, host->mrq->sbc->arg, SDHCI_ARGUMENT2, 5);
++		}
++	}
++
++	if (data->flags & MMC_DATA_READ)
++		mode |= SDHCI_TRNS_READ;
++	if (host->flags & SDHCI_REQ_USE_DMA)
++		mode |= SDHCI_TRNS_DMA;
++
++	bcm2835_mmc_writew(host, mode, SDHCI_TRANSFER_MODE);
++}
++
++void bcm2835_mmc_send_command(struct bcm2835_host *host, struct mmc_command *cmd)
++{
++	int flags;
++	u32 mask;
++	unsigned long timeout;
++
++	WARN_ON(host->cmd);
++
++	/* Wait max 10 ms */
++	timeout = 1000;
++
++	mask = SDHCI_CMD_INHIBIT;
++	if ((cmd->data != NULL) || (cmd->flags & MMC_RSP_BUSY))
++		mask |= SDHCI_DATA_INHIBIT;
++
++	/* We shouldn't wait for data inihibit for stop commands, even
++	   though they might use busy signaling */
++	if (host->mrq->data && (cmd == host->mrq->data->stop))
++		mask &= ~SDHCI_DATA_INHIBIT;
++
++	while (bcm2835_mmc_readl(host, SDHCI_PRESENT_STATE) & mask) {
++		if (timeout == 0) {
++			pr_err("%s: Controller never released inhibit bit(s).\n",
++				mmc_hostname(host->mmc));
++			bcm2835_mmc_dumpregs(host);
++			cmd->error = -EIO;
++			tasklet_schedule(&host->finish_tasklet);
++			return;
++		}
++		timeout--;
++		udelay(10);
++	}
++
++	if ((1000-timeout)/100 > 1 && (1000-timeout)/100 > host->max_delay) {
++		host->max_delay = (1000-timeout)/100;
++		pr_warn("Warning: MMC controller hung for %d ms\n", host->max_delay);
++	}
++
++	timeout = jiffies;
++	if (!cmd->data && cmd->busy_timeout > 9000)
++		timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ;
++	else
++		timeout += 10 * HZ;
++	mod_timer(&host->timer, timeout);
++
++	host->cmd = cmd;
++	host->use_dma = false;
++
++	bcm2835_mmc_prepare_data(host, cmd);
++
++	bcm2835_mmc_writel(host, cmd->arg, SDHCI_ARGUMENT, 6);
++
++	bcm2835_mmc_set_transfer_mode(host, cmd);
++
++	if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
++		pr_err("%s: Unsupported response type!\n",
++			mmc_hostname(host->mmc));
++		cmd->error = -EINVAL;
++		tasklet_schedule(&host->finish_tasklet);
++		return;
++	}
++
++	if (!(cmd->flags & MMC_RSP_PRESENT))
++		flags = SDHCI_CMD_RESP_NONE;
++	else if (cmd->flags & MMC_RSP_136)
++		flags = SDHCI_CMD_RESP_LONG;
++	else if (cmd->flags & MMC_RSP_BUSY)
++		flags = SDHCI_CMD_RESP_SHORT_BUSY;
++	else
++		flags = SDHCI_CMD_RESP_SHORT;
++
++	if (cmd->flags & MMC_RSP_CRC)
++		flags |= SDHCI_CMD_CRC;
++	if (cmd->flags & MMC_RSP_OPCODE)
++		flags |= SDHCI_CMD_INDEX;
++
++	if (cmd->data)
++		flags |= SDHCI_CMD_DATA;
++
++	bcm2835_mmc_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND);
++}
++
++
++static void bcm2835_mmc_finish_data(struct bcm2835_host *host)
++{
++	struct mmc_data *data;
++
++	BUG_ON(!host->data);
++
++	data = host->data;
++	host->data = NULL;
++
++	if (data->error)
++		data->bytes_xfered = 0;
++	else
++		data->bytes_xfered = data->blksz * data->blocks;
++
++	/*
++	 * Need to send CMD12 if -
++	 * a) open-ended multiblock transfer (no CMD23)
++	 * b) error in multiblock transfer
++	 */
++	if (data->stop &&
++	    (data->error ||
++	     !host->mrq->sbc)) {
++
++		/*
++		 * The controller needs a reset of internal state machines
++		 * upon error conditions.
++		 */
++		if (data->error) {
++			bcm2835_mmc_reset(host, SDHCI_RESET_CMD);
++			bcm2835_mmc_reset(host, SDHCI_RESET_DATA);
++		}
++
++		bcm2835_mmc_send_command(host, data->stop);
++	} else if (host->use_dma) {
++		host->wait_for_dma = true;
++	} else {
++		tasklet_schedule(&host->finish_tasklet);
++	}
++}
++
++static void bcm2835_mmc_finish_command(struct bcm2835_host *host)
++{
++	int i;
++
++	BUG_ON(host->cmd == NULL);
++
++	if (host->cmd->flags & MMC_RSP_PRESENT) {
++		if (host->cmd->flags & MMC_RSP_136) {
++			/* CRC is stripped so we need to do some shifting. */
++			for (i = 0; i < 4; i++) {
++				host->cmd->resp[i] = bcm2835_mmc_readl(host,
++					SDHCI_RESPONSE + (3-i)*4) << 8;
++				if (i != 3)
++					host->cmd->resp[i] |=
++						bcm2835_mmc_readb(host,
++						SDHCI_RESPONSE + (3-i)*4-1);
++			}
++		} else {
++			host->cmd->resp[0] = bcm2835_mmc_readl(host, SDHCI_RESPONSE);
++		}
++	}
++
++	host->cmd->error = 0;
++
++	/* Finished CMD23, now send actual command. */
++	if (host->cmd == host->mrq->sbc) {
++		host->cmd = NULL;
++		bcm2835_mmc_send_command(host, host->mrq->cmd);
++
++		if (host->mrq->cmd->data && host->use_dma) {
++			/* DMA transfer starts now, PIO starts after interrupt */
++			bcm2835_mmc_transfer_dma(host);
++		}
++	} else {
++
++		/* Processed actual command. */
++		if (host->data && host->data_early)
++			bcm2835_mmc_finish_data(host);
++
++		if (!host->cmd->data)
++			tasklet_schedule(&host->finish_tasklet);
++
++		host->cmd = NULL;
++	}
++}
++
++
++static void bcm2835_mmc_timeout_timer(struct timer_list *t)
++{
++	struct bcm2835_host *host = from_timer(host, t, timer);
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	if (host->mrq) {
++		pr_err("%s: Timeout waiting for hardware interrupt.\n",
++			mmc_hostname(host->mmc));
++		bcm2835_mmc_dumpregs(host);
++
++		if (host->data) {
++			host->data->error = -ETIMEDOUT;
++			bcm2835_mmc_finish_data(host);
++		} else {
++			if (host->cmd)
++				host->cmd->error = -ETIMEDOUT;
++			else
++				host->mrq->cmd->error = -ETIMEDOUT;
++
++			tasklet_schedule(&host->finish_tasklet);
++		}
++	}
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++
++static void bcm2835_mmc_enable_sdio_irq_nolock(struct bcm2835_host *host, int enable)
++{
++	if (!(host->flags & SDHCI_DEVICE_DEAD)) {
++		if (enable)
++			host->ier |= SDHCI_INT_CARD_INT;
++		else
++			host->ier &= ~SDHCI_INT_CARD_INT;
++
++		bcm2835_mmc_writel(host, host->ier, SDHCI_INT_ENABLE, 7);
++		bcm2835_mmc_writel(host, host->ier, SDHCI_SIGNAL_ENABLE, 7);
++	}
++}
++
++static void bcm2835_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
++{
++	struct bcm2835_host *host = mmc_priv(mmc);
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++	if (enable)
++		host->flags |= SDHCI_SDIO_IRQ_ENABLED;
++	else
++		host->flags &= ~SDHCI_SDIO_IRQ_ENABLED;
++
++	bcm2835_mmc_enable_sdio_irq_nolock(host, enable);
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_mmc_cmd_irq(struct bcm2835_host *host, u32 intmask)
++{
++
++	BUG_ON(intmask == 0);
++
++	if (!host->cmd) {
++		pr_err("%s: Got command interrupt 0x%08x even "
++			"though no command operation was in progress.\n",
++			mmc_hostname(host->mmc), (unsigned)intmask);
++		bcm2835_mmc_dumpregs(host);
++		return;
++	}
++
++	if (intmask & SDHCI_INT_TIMEOUT)
++		host->cmd->error = -ETIMEDOUT;
++	else if (intmask & (SDHCI_INT_CRC | SDHCI_INT_END_BIT |
++			SDHCI_INT_INDEX)) {
++			host->cmd->error = -EILSEQ;
++	}
++
++	if (host->cmd->error) {
++		tasklet_schedule(&host->finish_tasklet);
++		return;
++	}
++
++	if (intmask & SDHCI_INT_RESPONSE)
++		bcm2835_mmc_finish_command(host);
++
++}
++
++static void bcm2835_mmc_data_irq(struct bcm2835_host *host, u32 intmask)
++{
++	struct dma_chan *dma_chan;
++	u32 dir_data;
++
++	BUG_ON(intmask == 0);
++
++	if (!host->data) {
++		/*
++		 * The "data complete" interrupt is also used to
++		 * indicate that a busy state has ended. See comment
++		 * above in sdhci_cmd_irq().
++		 */
++		if (host->cmd && (host->cmd->flags & MMC_RSP_BUSY)) {
++			if (intmask & SDHCI_INT_DATA_END) {
++				bcm2835_mmc_finish_command(host);
++				return;
++			}
++		}
++
++		pr_debug("%s: Got data interrupt 0x%08x even "
++			"though no data operation was in progress.\n",
++			mmc_hostname(host->mmc), (unsigned)intmask);
++		bcm2835_mmc_dumpregs(host);
++
++		return;
++	}
++
++	if (intmask & SDHCI_INT_DATA_TIMEOUT)
++		host->data->error = -ETIMEDOUT;
++	else if (intmask & SDHCI_INT_DATA_END_BIT)
++		host->data->error = -EILSEQ;
++	else if ((intmask & SDHCI_INT_DATA_CRC) &&
++		SDHCI_GET_CMD(bcm2835_mmc_readw(host, SDHCI_COMMAND))
++			!= MMC_BUS_TEST_R)
++		host->data->error = -EILSEQ;
++
++	if (host->use_dma) {
++		if  (host->data->flags & MMC_DATA_WRITE) {
++			/* IRQ handled here */
++
++			dma_chan = host->dma_chan_rxtx;
++			dir_data = DMA_TO_DEVICE;
++			dma_unmap_sg(dma_chan->device->dev,
++				 host->data->sg, host->data->sg_len,
++				 dir_data);
++
++			bcm2835_mmc_finish_data(host);
++		}
++
++	} else {
++		if (host->data->error)
++			bcm2835_mmc_finish_data(host);
++		else {
++			if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
++				bcm2835_mmc_transfer_pio(host);
++
++			if (intmask & SDHCI_INT_DATA_END) {
++				if (host->cmd) {
++					/*
++					 * Data managed to finish before the
++					 * command completed. Make sure we do
++					 * things in the proper order.
++					 */
++					host->data_early = 1;
++				} else {
++					bcm2835_mmc_finish_data(host);
++				}
++			}
++		}
++	}
++}
++
++
++static irqreturn_t bcm2835_mmc_irq(int irq, void *dev_id)
++{
++	irqreturn_t result = IRQ_NONE;
++	struct bcm2835_host *host = dev_id;
++	u32 intmask, mask, unexpected = 0;
++	int max_loops = 16;
++
++	spin_lock(&host->lock);
++
++	intmask = bcm2835_mmc_readl(host, SDHCI_INT_STATUS);
++
++	if (!intmask || intmask == 0xffffffff) {
++		result = IRQ_NONE;
++		goto out;
++	}
++
++	do {
++		/* Clear selected interrupts. */
++		mask = intmask & (SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK |
++				  SDHCI_INT_BUS_POWER);
++		bcm2835_mmc_writel(host, mask, SDHCI_INT_STATUS, 8);
++
++
++		if (intmask & SDHCI_INT_CMD_MASK)
++			bcm2835_mmc_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
++
++		if (intmask & SDHCI_INT_DATA_MASK)
++			bcm2835_mmc_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
++
++		if (intmask & SDHCI_INT_BUS_POWER)
++			pr_err("%s: Card is consuming too much power!\n",
++				mmc_hostname(host->mmc));
++
++		if (intmask & SDHCI_INT_CARD_INT) {
++			bcm2835_mmc_enable_sdio_irq_nolock(host, false);
++			sdio_signal_irq(host->mmc);
++		}
++
++		intmask &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE |
++			     SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK |
++			     SDHCI_INT_ERROR | SDHCI_INT_BUS_POWER |
++			     SDHCI_INT_CARD_INT);
++
++		if (intmask) {
++			unexpected |= intmask;
++			bcm2835_mmc_writel(host, intmask, SDHCI_INT_STATUS, 9);
++		}
++
++		if (result == IRQ_NONE)
++			result = IRQ_HANDLED;
++
++		intmask = bcm2835_mmc_readl(host, SDHCI_INT_STATUS);
++	} while (intmask && --max_loops);
++out:
++	spin_unlock(&host->lock);
++
++	if (unexpected) {
++		pr_err("%s: Unexpected interrupt 0x%08x.\n",
++			   mmc_hostname(host->mmc), unexpected);
++		bcm2835_mmc_dumpregs(host);
++	}
++
++	return result;
++}
++
++
++static void bcm2835_mmc_ack_sdio_irq(struct mmc_host *mmc)
++{
++	struct bcm2835_host *host = mmc_priv(mmc);
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++	if (host->flags & SDHCI_SDIO_IRQ_ENABLED)
++		bcm2835_mmc_enable_sdio_irq_nolock(host, true);
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++void bcm2835_mmc_set_clock(struct bcm2835_host *host, unsigned int clock)
++{
++	int div = 0; /* Initialized for compiler warning */
++	int real_div = div, clk_mul = 1;
++	u16 clk = 0;
++	unsigned long timeout;
++	unsigned int input_clock = clock;
++
++	if (host->overclock_50 && (clock == 50000000))
++		clock = host->overclock_50 * 1000000 + 999999;
++
++	host->mmc->actual_clock = 0;
++
++	bcm2835_mmc_writew(host, 0, SDHCI_CLOCK_CONTROL);
++
++	if (clock == 0)
++		return;
++
++	/* Version 3.00 divisors must be a multiple of 2. */
++	if (host->max_clk <= clock)
++		div = 1;
++	else {
++		for (div = 2; div < SDHCI_MAX_DIV_SPEC_300;
++			 div += 2) {
++			if ((host->max_clk / div) <= clock)
++				break;
++		}
++	}
++
++	real_div = div;
++	div >>= 1;
++
++	if (real_div)
++		clock = (host->max_clk * clk_mul) / real_div;
++	host->mmc->actual_clock = clock;
++
++	if ((clock > input_clock) && (clock > host->max_overclock)) {
++		pr_warn("%s: Overclocking to %dHz\n",
++			mmc_hostname(host->mmc), clock);
++		host->max_overclock = clock;
++	}
++
++	clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
++	clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
++		<< SDHCI_DIVIDER_HI_SHIFT;
++	clk |= SDHCI_CLOCK_INT_EN;
++	bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL);
++
++	/* Wait max 20 ms */
++	timeout = 20;
++	while (!((clk = bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL))
++		& SDHCI_CLOCK_INT_STABLE)) {
++		if (timeout == 0) {
++			pr_err("%s: Internal clock never "
++				"stabilised.\n", mmc_hostname(host->mmc));
++			bcm2835_mmc_dumpregs(host);
++			return;
++		}
++		timeout--;
++		mdelay(1);
++	}
++
++	if (20-timeout > 10 && 20-timeout > host->max_delay) {
++		host->max_delay = 20-timeout;
++		pr_warn("Warning: MMC controller hung for %d ms\n", host->max_delay);
++	}
++
++	clk |= SDHCI_CLOCK_CARD_EN;
++	bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL);
++}
++
++static void bcm2835_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
++{
++	struct bcm2835_host *host;
++	unsigned long flags;
++
++	host = mmc_priv(mmc);
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	WARN_ON(host->mrq != NULL);
++
++	host->mrq = mrq;
++
++	if (mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23))
++		bcm2835_mmc_send_command(host, mrq->sbc);
++	else
++		bcm2835_mmc_send_command(host, mrq->cmd);
++
++	spin_unlock_irqrestore(&host->lock, flags);
++
++	if (!(mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23)) && mrq->cmd->data && host->use_dma) {
++		/* DMA transfer starts now, PIO starts after interrupt */
++		bcm2835_mmc_transfer_dma(host);
++	}
++}
++
++
++static void bcm2835_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
++{
++
++	struct bcm2835_host *host = mmc_priv(mmc);
++	unsigned long flags;
++	u8 ctrl;
++	u16 clk, ctrl_2;
++
++	pr_debug("bcm2835_mmc_set_ios: clock %d, pwr %d, bus_width %d, timing %d, vdd %d, drv_type %d\n",
++		 ios->clock, ios->power_mode, ios->bus_width,
++		 ios->timing, ios->signal_voltage, ios->drv_type);
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	if (!ios->clock || ios->clock != host->clock) {
++		bcm2835_mmc_set_clock(host, ios->clock);
++		host->clock = ios->clock;
++	}
++
++	if (host->pwr != SDHCI_POWER_330) {
++		host->pwr = SDHCI_POWER_330;
++		bcm2835_mmc_writeb(host, SDHCI_POWER_330 | SDHCI_POWER_ON, SDHCI_POWER_CONTROL);
++	}
++
++	ctrl = bcm2835_mmc_readb(host, SDHCI_HOST_CONTROL);
++
++	/* set bus width */
++	ctrl &= ~SDHCI_CTRL_8BITBUS;
++	if (ios->bus_width == MMC_BUS_WIDTH_4)
++		ctrl |= SDHCI_CTRL_4BITBUS;
++	else
++		ctrl &= ~SDHCI_CTRL_4BITBUS;
++
++	ctrl &= ~SDHCI_CTRL_HISPD; /* NO_HISPD_BIT */
++
++
++	bcm2835_mmc_writeb(host, ctrl, SDHCI_HOST_CONTROL);
++	/*
++	 * We only need to set Driver Strength if the
++	 * preset value enable is not set.
++	 */
++	ctrl_2 = bcm2835_mmc_readw(host, SDHCI_HOST_CONTROL2);
++	ctrl_2 &= ~SDHCI_CTRL_DRV_TYPE_MASK;
++	if (ios->drv_type == MMC_SET_DRIVER_TYPE_A)
++		ctrl_2 |= SDHCI_CTRL_DRV_TYPE_A;
++	else if (ios->drv_type == MMC_SET_DRIVER_TYPE_C)
++		ctrl_2 |= SDHCI_CTRL_DRV_TYPE_C;
++
++	bcm2835_mmc_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
++
++	/* Reset SD Clock Enable */
++	clk = bcm2835_mmc_readw(host, SDHCI_CLOCK_CONTROL);
++	clk &= ~SDHCI_CLOCK_CARD_EN;
++	bcm2835_mmc_writew(host, clk, SDHCI_CLOCK_CONTROL);
++
++	/* Re-enable SD Clock */
++	bcm2835_mmc_set_clock(host, host->clock);
++	bcm2835_mmc_writeb(host, ctrl, SDHCI_HOST_CONTROL);
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++
++static struct mmc_host_ops bcm2835_ops = {
++	.request = bcm2835_mmc_request,
++	.set_ios = bcm2835_mmc_set_ios,
++	.enable_sdio_irq = bcm2835_mmc_enable_sdio_irq,
++	.ack_sdio_irq = bcm2835_mmc_ack_sdio_irq,
++};
++
++
++static void bcm2835_mmc_tasklet_finish(unsigned long param)
++{
++	struct bcm2835_host *host;
++	unsigned long flags;
++	struct mmc_request *mrq;
++
++	host = (struct bcm2835_host *)param;
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	/*
++	 * If this tasklet gets rescheduled while running, it will
++	 * be run again afterwards but without any active request.
++	 */
++	if (!host->mrq) {
++		spin_unlock_irqrestore(&host->lock, flags);
++		return;
++	}
++
++	del_timer(&host->timer);
++
++	mrq = host->mrq;
++
++	/*
++	 * The controller needs a reset of internal state machines
++	 * upon error conditions.
++	 */
++	if (!(host->flags & SDHCI_DEVICE_DEAD) &&
++	    ((mrq->cmd && mrq->cmd->error) ||
++		 (mrq->data && (mrq->data->error ||
++		  (mrq->data->stop && mrq->data->stop->error))))) {
++
++		spin_unlock_irqrestore(&host->lock, flags);
++		bcm2835_mmc_reset(host, SDHCI_RESET_CMD);
++		bcm2835_mmc_reset(host, SDHCI_RESET_DATA);
++		spin_lock_irqsave(&host->lock, flags);
++	}
++
++	host->mrq = NULL;
++	host->cmd = NULL;
++	host->data = NULL;
++
++	spin_unlock_irqrestore(&host->lock, flags);
++	mmc_request_done(host->mmc, mrq);
++}
++
++
++
++static int bcm2835_mmc_add_host(struct bcm2835_host *host)
++{
++	struct mmc_host *mmc = host->mmc;
++	struct device *dev = mmc->parent;
++#ifndef FORCE_PIO
++	struct dma_slave_config cfg;
++#endif
++	int ret;
++
++	bcm2835_mmc_reset(host, SDHCI_RESET_ALL);
++
++	host->clk_mul = 0;
++
++	if (!mmc->f_max || mmc->f_max > host->max_clk)
++		mmc->f_max = host->max_clk;
++	mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;
++
++	/* SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK */
++	host->timeout_clk = mmc->f_max / 1000;
++	mmc->max_busy_timeout = (1 << 27) / host->timeout_clk;
++
++	/* host controller capabilities */
++	mmc->caps |= MMC_CAP_CMD23 | MMC_CAP_NEEDS_POLL |
++		MMC_CAP_SDIO_IRQ | MMC_CAP_SD_HIGHSPEED |
++		MMC_CAP_MMC_HIGHSPEED;
++
++	mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD;
++
++	host->flags = SDHCI_AUTO_CMD23;
++
++	dev_info(dev, "mmc_debug:%x mmc_debug2:%x\n", mmc_debug, mmc_debug2);
++#ifdef FORCE_PIO
++	dev_info(dev, "Forcing PIO mode\n");
++	host->have_dma = false;
++#else
++	if (IS_ERR_OR_NULL(host->dma_chan_rxtx)) {
++		dev_err(dev, "%s: Unable to initialise DMA channel. Falling back to PIO\n",
++			DRIVER_NAME);
++		host->have_dma = false;
++	} else {
++		dev_info(dev, "DMA channel allocated");
++
++		cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++		cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++		cfg.slave_id = 11;		/* DREQ channel */
++
++		/* Validate the slave configurations */
++
++		cfg.direction = DMA_MEM_TO_DEV;
++		cfg.src_addr = 0;
++		cfg.dst_addr = host->bus_addr + SDHCI_BUFFER;
++
++		ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg);
++
++		if (ret == 0) {
++			host->dma_cfg_tx = cfg;
++
++			cfg.direction = DMA_DEV_TO_MEM;
++			cfg.src_addr = host->bus_addr + SDHCI_BUFFER;
++			cfg.dst_addr = 0;
++
++			ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg);
++		}
++
++		if (ret == 0) {
++			host->dma_cfg_rx = cfg;
++
++			host->have_dma = true;
++		} else {
++			pr_err("%s: unable to configure DMA channel. "
++			       "Falling back to PIO\n",
++			       mmc_hostname(mmc));
++			dma_release_channel(host->dma_chan_rxtx);
++			host->dma_chan_rxtx = NULL;
++			host->have_dma = false;
++		}
++	}
++#endif
++	mmc->max_segs = 128;
++	if (swiotlb_max_segment())
++		mmc->max_req_size = (1 << IO_TLB_SHIFT) * IO_TLB_SEGSIZE;
++	else
++		mmc->max_req_size = 524288;
++	mmc->max_seg_size = mmc->max_req_size;
++	mmc->max_blk_size = 512;
++	mmc->max_blk_count =  65535;
++
++	/* report supported voltage ranges */
++	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
++
++	tasklet_init(&host->finish_tasklet,
++		bcm2835_mmc_tasklet_finish, (unsigned long)host);
++
++	timer_setup(&host->timer, bcm2835_mmc_timeout_timer, 0);
++	init_waitqueue_head(&host->buf_ready_int);
++
++	bcm2835_mmc_init(host, 0);
++	ret = request_irq(host->irq, bcm2835_mmc_irq, IRQF_SHARED,
++				   mmc_hostname(mmc), host);
++	if (ret) {
++		dev_err(dev, "Failed to request IRQ %d: %d\n", host->irq, ret);
++		goto untasklet;
++	}
++
++	ret = mmc_add_host(mmc);
++	if (ret) {
++		dev_err(dev, "could not add MMC host\n");
++		goto free_irq;
++	}
++
++	return 0;
++
++free_irq:
++	free_irq(host->irq, host);
++untasklet:
++	tasklet_kill(&host->finish_tasklet);
++
++	return ret;
++}
++
++static int bcm2835_mmc_probe(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	struct device_node *node = dev->of_node;
++	struct clk *clk;
++	struct resource *iomem;
++	struct bcm2835_host *host;
++	struct mmc_host *mmc;
++	const __be32 *addr;
++	int ret;
++
++	mmc = mmc_alloc_host(sizeof(*host), dev);
++	if (!mmc)
++		return -ENOMEM;
++
++	mmc->ops = &bcm2835_ops;
++	host = mmc_priv(mmc);
++	host->mmc = mmc;
++	host->timeout = msecs_to_jiffies(1000);
++	spin_lock_init(&host->lock);
++
++	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	host->ioaddr = devm_ioremap_resource(dev, iomem);
++	if (IS_ERR(host->ioaddr)) {
++		ret = PTR_ERR(host->ioaddr);
++		goto err;
++	}
++
++	addr = of_get_address(node, 0, NULL, NULL);
++	if (!addr) {
++		dev_err(dev, "could not get DMA-register address\n");
++		ret = -ENODEV;
++		goto err;
++	}
++	host->bus_addr = be32_to_cpup(addr);
++	pr_debug(" - ioaddr %lx, iomem->start %lx, bus_addr %lx\n",
++		 (unsigned long)host->ioaddr,
++		 (unsigned long)iomem->start,
++		 (unsigned long)host->bus_addr);
++
++#ifndef FORCE_PIO
++	if (node) {
++		host->dma_chan_rxtx = dma_request_slave_channel(dev, "rx-tx");
++		if (!host->dma_chan_rxtx)
++			host->dma_chan_rxtx =
++				dma_request_slave_channel(dev, "tx");
++		if (!host->dma_chan_rxtx)
++			host->dma_chan_rxtx =
++				dma_request_slave_channel(dev, "rx");
++	} else {
++		dma_cap_mask_t mask;
++
++		dma_cap_zero(mask);
++		/* we don't care about the channel, any would work */
++		dma_cap_set(DMA_SLAVE, mask);
++		host->dma_chan_rxtx = dma_request_channel(mask, NULL, NULL);
++	}
++#endif
++	clk = devm_clk_get(dev, NULL);
++	if (IS_ERR(clk)) {
++		ret = PTR_ERR(clk);
++		if (ret == -EPROBE_DEFER)
++			dev_info(dev, "could not get clk, deferring probe\n");
++		else
++			dev_err(dev, "could not get clk\n");
++		goto err;
++	}
++
++	host->max_clk = clk_get_rate(clk);
++
++	host->irq = platform_get_irq(pdev, 0);
++	if (host->irq <= 0) {
++		dev_err(dev, "get IRQ failed\n");
++		ret = -EINVAL;
++		goto err;
++	}
++
++	if (node) {
++		mmc_of_parse(mmc);
++
++		/* Read any custom properties */
++		of_property_read_u32(node,
++				     "brcm,overclock-50",
++				     &host->overclock_50);
++	} else {
++		mmc->caps |= MMC_CAP_4_BIT_DATA;
++	}
++
++	ret = bcm2835_mmc_add_host(host);
++	if (ret)
++		goto err;
++
++	platform_set_drvdata(pdev, host);
++
++	return 0;
++err:
++	if (host->dma_chan_rxtx)
++		dma_release_channel(host->dma_chan_rxtx);
++	mmc_free_host(mmc);
++
++	return ret;
++}
++
++static int bcm2835_mmc_remove(struct platform_device *pdev)
++{
++	struct bcm2835_host *host = platform_get_drvdata(pdev);
++	unsigned long flags;
++	int dead;
++	u32 scratch;
++
++	dead = 0;
++	scratch = bcm2835_mmc_readl(host, SDHCI_INT_STATUS);
++	if (scratch == (u32)-1)
++		dead = 1;
++
++
++	if (dead) {
++		spin_lock_irqsave(&host->lock, flags);
++
++		host->flags |= SDHCI_DEVICE_DEAD;
++
++		if (host->mrq) {
++			pr_err("%s: Controller removed during "
++				" transfer!\n", mmc_hostname(host->mmc));
++
++			host->mrq->cmd->error = -ENOMEDIUM;
++			tasklet_schedule(&host->finish_tasklet);
++		}
++
++		spin_unlock_irqrestore(&host->lock, flags);
++	}
++
++	mmc_remove_host(host->mmc);
++
++	if (!dead)
++		bcm2835_mmc_reset(host, SDHCI_RESET_ALL);
++
++	free_irq(host->irq, host);
++
++	del_timer_sync(&host->timer);
++
++	tasklet_kill(&host->finish_tasklet);
++
++	if (host->dma_chan_rxtx)
++		dma_release_channel(host->dma_chan_rxtx);
++
++	mmc_free_host(host->mmc);
++
++	return 0;
++}
++
++
++static const struct of_device_id bcm2835_mmc_match[] = {
++	{ .compatible = "brcm,bcm2835-mmc" },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, bcm2835_mmc_match);
++
++
++
++static struct platform_driver bcm2835_mmc_driver = {
++	.probe      = bcm2835_mmc_probe,
++	.remove     = bcm2835_mmc_remove,
++	.driver     = {
++		.name		= DRIVER_NAME,
++		.owner		= THIS_MODULE,
++		.of_match_table	= bcm2835_mmc_match,
++	},
++};
++module_platform_driver(bcm2835_mmc_driver);
++
++module_param(mmc_debug, uint, 0644);
++module_param(mmc_debug2, uint, 0644);
++MODULE_ALIAS("platform:mmc-bcm2835");
++MODULE_DESCRIPTION("BCM2835 SDHCI driver");
++MODULE_LICENSE("GPL v2");
++MODULE_AUTHOR("Gellert Weisz");
+--- a/include/linux/mmc/card.h
++++ b/include/linux/mmc/card.h
+@@ -271,6 +271,8 @@ struct mmc_card {
+ #define MMC_QUIRK_TRIM_BROKEN	(1<<12)		/* Skip trim */
+ #define MMC_QUIRK_BROKEN_HPI	(1<<13)		/* Disable broken HPI support */
+ 
++#define MMC_QUIRK_ERASE_BROKEN	(1<<31)		/* Skip erase */
++
+ 	bool			reenable_cmdq;	/* Re-enable Command Queue */
+ 
+ 	unsigned int		erase_size;	/* erase size in sectors */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0047-Adding-bcm2835-sdhost-driver-and-an-overlay-to-enabl.patch b/target/linux/bcm27xx/patches-5.10/950-0047-Adding-bcm2835-sdhost-driver-and-an-overlay-to-enabl.patch
new file mode 100644
index 0000000000..b98833ef24
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0047-Adding-bcm2835-sdhost-driver-and-an-overlay-to-enabl.patch
@@ -0,0 +1,2481 @@
+From dd8b26a3df74f3022a6ddc794049a08d7190be3a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 25 Mar 2015 17:49:47 +0000
+Subject: [PATCH] Adding bcm2835-sdhost driver, and an overlay to
+ enable it
+
+BCM2835 has two SD card interfaces. This driver uses the other one.
+
+bcm2835-sdhost: Error handling fix, and code clarification
+
+bcm2835-sdhost: Adding overclocking option
+
+Allow a different clock speed to be substitued for a requested 50MHz.
+This option is exposed using the "overclock_50" DT parameter.
+Note that the sdhost interface is restricted to integer divisions of
+core_freq, and the highest sensible option for a core_freq of 250MHz
+is 84 (250/3 = 83.3MHz), the next being 125 (250/2) which is much too
+high.
+
+Use at your own risk.
+
+bcm2835-sdhost: Round up the overclock, so 62 works for 62.5Mhz
+
+Also only warn once for each overclock setting.
+
+bcm2835-sdhost: Improve error handling and recovery
+
+1) Expose the hw_reset method to the MMC framework, removing many
+   internal calls by the driver.
+
+2) Reduce overclock setting on error.
+
+3) Increase timeout to cope with high capacity cards.
+
+4) Add properties and parameters to control pio_limit and debug.
+
+5) Reduce messages at probe time.
+
+bcm2835-sdhost: Further improve overclock back-off
+
+bcm2835-sdhost: Clear HBLC for PIO mode
+
+Also update pio_limit default in overlay README.
+
+bcm2835-sdhost: Add the ERASE capability
+
+See: https://github.com/raspberrypi/linux/issues/1076
+
+bcm2835-sdhost: Ignore CRC7 for MMC CMD1
+
+It seems that the sdhost interface returns CRC7 errors for CMD1,
+which is the MMC-specific SEND_OP_COND. Returning these errors to
+the MMC layer causes a downward spiral, but ignoring them seems
+to be harmless.
+
+bcm2835-mmc/sdhost: Remove ARCH_BCM2835 differences
+
+The bcm2835-mmc driver (and -sdhost driver that copied from it)
+contains code to handle SDIO interrupts in a threaded interrupt
+handler rather than waking the MMC framework thread. The change
+follows a patch from Russell King that adds the facility as the
+preferred way of working.
+
+However, the new code path is only present in ARCH_BCM2835
+builds, which I have taken to be a way of testing the waters
+rather than making the change across the board; I can't see
+any technical reason why it wouldn't be enabled for MACH_BCM270X
+builds. So this patch standardises on the ARCH_BCM2835 code,
+removing the old code paths.
+
+bcm2835-sdhost: Don't log timeout errors unless debug=1
+
+The MMC card-discovery process generates timeouts. This is
+expected behaviour, so reporting it to the user serves no purpose.
+Suppress the reporting of timeout errors unless the debug flag
+is on.
+
+bcm2835-sdhost: Add workaround for odd behaviour on some cards
+
+For reasons not understood, the sdhost driver fails when reading
+sectors very near the end of some SD cards. The problem could
+be related to the similar issue that reading the final sector
+of any card as part of a multiple read never completes, and the
+workaround is an extension of the mechanism introduced to solve
+that problem which ensures those sectors are always read singly.
+
+bcm2835-sdhost: Major revision
+
+This is a significant revision of the bcm2835-sdhost driver. It
+improves on the original in a number of ways:
+
+1) Through the use of CMD23 for reads it appears to avoid problems
+   reading some sectors on certain high speed cards.
+2) Better atomicity to prevent crashes.
+3) Higher performance.
+4) Activity logging included, for easier diagnosis in the event
+   of a problem.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Restore ATOMIC flag to PIO sg mapping
+
+Allocation problems have been seen in a wireless driver, and
+this is the only change which might have been responsible.
+
+SQUASH: bcm2835-sdhost: Only claim one DMA channel
+
+With both MMC controllers enabled there are few DMA channels left. The
+bcm2835-sdhost driver only uses DMA in one direction at a time, so it
+doesn't need to claim two channels.
+
+See: https://github.com/raspberrypi/linux/issues/1327
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Workaround for "slow" sectors
+
+Some cards have been seen to cause timeouts after certain sectors are
+read. This workaround enforces a minimum delay between the stop after
+reading one of those sectors and a subsequent data command.
+
+Using CMD23 (SET_BLOCK_COUNT) avoids this problem, so good cards will
+not be penalised by this workaround.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Firmware manages the clock divisor
+
+The bcm2835-sdhost driver hands control of the CDIV clock divisor
+register to matching firmware, allowing it to adjust to a changing
+core clock. This removes the need to use the performance governor or
+to enable io_is_busy on the on-demand governor in order to get the
+best SD performance.
+
+N.B. As SD clocks must be an integer divisor of the core clock, it is
+possible that the SD clock for "turbo" mode can be different (even
+lower) than "normal" mode.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Reset the clock in task context
+
+Since reprogramming the clock can now involve a round-trip to the
+firmware it must not be done at atomic context, and a tasklet
+is not a task.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Don't exit cmd wait loop on error
+
+The FAIL flag can be set in the CMD register before command processing
+is complete, leading to spurious "failed to complete" errors. This has
+the effect of promoting harmless CRC7 errors during CMD1 processing
+into errors that can delay and even prevent booting.
+
+Also:
+1) Convert the last KERN_ERROR message in the register dumping to
+   KERN_INFO.
+2) Remove an unnecessary reset call from  bcm2835_sdhost_add_host.
+
+See: https://github.com/raspberrypi/linux/pull/1492
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: mmc_card_blockaddr fix
+
+Get the definition of mmc_card_blockaddr from drivers/mmc/core/card.h.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: New timer API
+
+mmc: bcm2835-sdhost: Support underclocking
+
+Support underclocking of the SD bus in two ways:
+1. using the max-frequency DT property (which currently has no DT
+   parameter), and
+2. using the exiting sd_overclock parameter.
+
+The two methods differ slightly - in the former the MMC subsystem is
+aware of the underclocking, while in the latter it isn't - but the
+end results should be the same.
+
+See: https://github.com/raspberrypi/linux/issues/2350
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mmc: bcm2835-sdhost: Add include
+
+highmem.h (needed for kmap_atomic) is pulled in by one of the other
+include files, but only with some CONFIG settings. Make the inclusion
+explicit to cater for cases where the CONFIG setting is absent.
+
+See: https://github.com/raspberrypi/linux/issues/2366
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mmc/bcm2835-sdhost: Recover from MMC_SEND_EXT_CSD
+
+If the user issues an "mmc extcsd read", the SD controller receives
+what it thinks is a SEND_IF_COND command with an unexpected data block.
+The resulting operations leave the FSM stuck in READWAIT, a state which
+persists until the MMC framework resets the controller, by which point
+the root filesystem is likely to have been unmounted.
+
+A less heavyweight solution is to detect the condition and nudge the
+FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.
+
+N.B. This workaround was essentially discovered by accident and without
+a full understanding the inner workings of the controller, so it is
+fortunate that the "fix" only modifies error paths.
+
+See: https://github.com/raspberrypi/linux/issues/2728
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mmc: bcm2835-sdhost: Fix warnings on arm64
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Allow for sg entries that cross pages
+
+The dma_complete handling code calculates a virtual address for a page
+then adds an offset, but if the offset is more than a page and HIGHMEM
+is in use then the summed address could be in an unmapped (or just
+incorrect) page.
+
+The upstream SDHOST driver allows for this possibility - copy the code
+that does so.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Fix DMA channel leak on error/remove
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+mmc: bcm2835-sdhost: Support 64-bit physical addresses
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+bcm2835-sdhost: Replace obsolete struct timeval
+
+struct timeval has been retired due to the impending linux 32-bit tv_sec
+rollover (only 18 years to go) - timespec64 is the obvious replacement.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/mmc/host/Kconfig          |   10 +
+ drivers/mmc/host/Makefile         |    1 +
+ drivers/mmc/host/bcm2835-sdhost.c | 2196 +++++++++++++++++++++++++++++
+ 3 files changed, 2207 insertions(+)
+ create mode 100644 drivers/mmc/host/bcm2835-sdhost.c
+
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -34,6 +34,16 @@ config MMC_BCM2835_PIO_DMA_BARRIER
+ 
+ 	  If unsure, say 2 here.
+ 
++config MMC_BCM2835_SDHOST
++	tristate "Support for the SDHost controller on BCM2708/9"
++	depends on ARCH_BCM2835
++	help
++	  This selects the SDHost controller on BCM2835/6.
++
++	  If you have a controller with this interface, say Y or M here.
++
++	  If unsure, say N.
++
+ config MMC_DEBUG
+ 	bool "MMC host drivers debugging"
+ 	depends on MMC != n
+--- a/drivers/mmc/host/Makefile
++++ b/drivers/mmc/host/Makefile
+@@ -25,6 +25,7 @@ obj-$(CONFIG_MMC_SDHCI_MILBEAUT)	+= sdhc
+ obj-$(CONFIG_MMC_SDHCI_SPEAR)	+= sdhci-spear.o
+ obj-$(CONFIG_MMC_SDHCI_AM654)	+= sdhci_am654.o
+ obj-$(CONFIG_MMC_BCM2835_MMC)	+= bcm2835-mmc.o
++obj-$(CONFIG_MMC_BCM2835_SDHOST)	+= bcm2835-sdhost.o
+ obj-$(CONFIG_MMC_WBSD)		+= wbsd.o
+ obj-$(CONFIG_MMC_AU1X)		+= au1xmmc.o
+ obj-$(CONFIG_MMC_ALCOR)	+= alcor.o
+--- /dev/null
++++ b/drivers/mmc/host/bcm2835-sdhost.c
+@@ -0,0 +1,2196 @@
++/*
++ * BCM2835 SD host driver.
++ *
++ * Author:      Phil Elwell <phil@raspberrypi.org>
++ *              Copyright (C) 2015-2016 Raspberry Pi (Trading) Ltd.
++ *
++ * Based on
++ *  mmc-bcm2835.c by Gellert Weisz
++ * which is, in turn, based on
++ *  sdhci-bcm2708.c by Broadcom
++ *  sdhci-bcm2835.c by Stephen Warren and Oleksandr Tymoshenko
++ *  sdhci.c and sdhci-pci.c by Pierre Ossman
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms and conditions of the GNU General Public License,
++ * version 2, as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define FIFO_READ_THRESHOLD     4
++#define FIFO_WRITE_THRESHOLD    4
++#define ALLOW_CMD23_READ        1
++#define ALLOW_CMD23_WRITE       0
++#define ENABLE_LOG              1
++#define SDDATA_FIFO_PIO_BURST   8
++#define CMD_DALLY_US            1
++
++#include <linux/delay.h>
++#include <linux/module.h>
++#include <linux/io.h>
++#include <linux/mmc/mmc.h>
++#include <linux/mmc/host.h>
++#include <linux/mmc/sd.h>
++#include <linux/mmc/sdio.h>
++#include <linux/scatterlist.h>
++#include <linux/of_address.h>
++#include <linux/of_irq.h>
++#include <linux/clk.h>
++#include <linux/platform_device.h>
++#include <linux/err.h>
++#include <linux/blkdev.h>
++#include <linux/dmaengine.h>
++#include <linux/dma-mapping.h>
++#include <linux/of_dma.h>
++#include <linux/time.h>
++#include <linux/workqueue.h>
++#include <linux/interrupt.h>
++#include <linux/highmem.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++/* For mmc_card_blockaddr */
++#include "../core/card.h"
++
++#define DRIVER_NAME "sdhost-bcm2835"
++
++#define SDCMD  0x00 /* Command to SD card              - 16 R/W */
++#define SDARG  0x04 /* Argument to SD card             - 32 R/W */
++#define SDTOUT 0x08 /* Start value for timeout counter - 32 R/W */
++#define SDCDIV 0x0c /* Start value for clock divider   - 11 R/W */
++#define SDRSP0 0x10 /* SD card response (31:0)         - 32 R   */
++#define SDRSP1 0x14 /* SD card response (63:32)        - 32 R   */
++#define SDRSP2 0x18 /* SD card response (95:64)        - 32 R   */
++#define SDRSP3 0x1c /* SD card response (127:96)       - 32 R   */
++#define SDHSTS 0x20 /* SD host status                  - 11 R   */
++#define SDVDD  0x30 /* SD card power control           -  1 R/W */
++#define SDEDM  0x34 /* Emergency Debug Mode            - 13 R/W */
++#define SDHCFG 0x38 /* Host configuration              -  2 R/W */
++#define SDHBCT 0x3c /* Host byte count (debug)         - 32 R/W */
++#define SDDATA 0x40 /* Data to/from SD card            - 32 R/W */
++#define SDHBLC 0x50 /* Host block count (SDIO/SDHC)    -  9 R/W */
++
++#define SDCMD_NEW_FLAG                  0x8000
++#define SDCMD_FAIL_FLAG                 0x4000
++#define SDCMD_BUSYWAIT                  0x800
++#define SDCMD_NO_RESPONSE               0x400
++#define SDCMD_LONG_RESPONSE             0x200
++#define SDCMD_WRITE_CMD                 0x80
++#define SDCMD_READ_CMD                  0x40
++#define SDCMD_CMD_MASK                  0x3f
++
++#define SDCDIV_MAX_CDIV                 0x7ff
++
++#define SDHSTS_BUSY_IRPT                0x400
++#define SDHSTS_BLOCK_IRPT               0x200
++#define SDHSTS_SDIO_IRPT                0x100
++#define SDHSTS_REW_TIME_OUT             0x80
++#define SDHSTS_CMD_TIME_OUT             0x40
++#define SDHSTS_CRC16_ERROR              0x20
++#define SDHSTS_CRC7_ERROR               0x10
++#define SDHSTS_FIFO_ERROR               0x08
++/* Reserved */
++/* Reserved */
++#define SDHSTS_DATA_FLAG                0x01
++
++#define SDHSTS_TRANSFER_ERROR_MASK      (SDHSTS_CRC7_ERROR|SDHSTS_CRC16_ERROR|SDHSTS_REW_TIME_OUT|SDHSTS_FIFO_ERROR)
++#define SDHSTS_ERROR_MASK               (SDHSTS_CMD_TIME_OUT|SDHSTS_TRANSFER_ERROR_MASK)
++
++#define SDHCFG_BUSY_IRPT_EN     (1<<10)
++#define SDHCFG_BLOCK_IRPT_EN    (1<<8)
++#define SDHCFG_SDIO_IRPT_EN     (1<<5)
++#define SDHCFG_DATA_IRPT_EN     (1<<4)
++#define SDHCFG_SLOW_CARD        (1<<3)
++#define SDHCFG_WIDE_EXT_BUS     (1<<2)
++#define SDHCFG_WIDE_INT_BUS     (1<<1)
++#define SDHCFG_REL_CMD_LINE     (1<<0)
++
++#define SDEDM_FORCE_DATA_MODE   (1<<19)
++#define SDEDM_CLOCK_PULSE       (1<<20)
++#define SDEDM_BYPASS            (1<<21)
++
++#define SDEDM_WRITE_THRESHOLD_SHIFT 9
++#define SDEDM_READ_THRESHOLD_SHIFT 14
++#define SDEDM_THRESHOLD_MASK     0x1f
++
++#define SDEDM_FSM_MASK           0xf
++#define SDEDM_FSM_IDENTMODE      0x0
++#define SDEDM_FSM_DATAMODE       0x1
++#define SDEDM_FSM_READDATA       0x2
++#define SDEDM_FSM_WRITEDATA      0x3
++#define SDEDM_FSM_READWAIT       0x4
++#define SDEDM_FSM_READCRC        0x5
++#define SDEDM_FSM_WRITECRC       0x6
++#define SDEDM_FSM_WRITEWAIT1     0x7
++#define SDEDM_FSM_POWERDOWN      0x8
++#define SDEDM_FSM_POWERUP        0x9
++#define SDEDM_FSM_WRITESTART1    0xa
++#define SDEDM_FSM_WRITESTART2    0xb
++#define SDEDM_FSM_GENPULSES      0xc
++#define SDEDM_FSM_WRITEWAIT2     0xd
++#define SDEDM_FSM_STARTPOWDOWN   0xf
++
++#define SDDATA_FIFO_WORDS        16
++
++#define USE_CMD23_FLAGS          ((ALLOW_CMD23_READ * MMC_DATA_READ) | \
++				  (ALLOW_CMD23_WRITE * MMC_DATA_WRITE))
++
++#define MHZ 1000000
++
++
++struct bcm2835_host {
++	spinlock_t		lock;
++
++	void __iomem		*ioaddr;
++	phys_addr_t		bus_addr;
++
++	struct mmc_host		*mmc;
++
++	u32			pio_timeout;	/* In jiffies */
++
++	int			clock;		/* Current clock speed */
++
++	bool			slow_card;	/* Force 11-bit divisor */
++
++	unsigned int		max_clk;	/* Max possible freq */
++
++	struct tasklet_struct	finish_tasklet;	/* Tasklet structures */
++
++	struct work_struct	cmd_wait_wq;	/* Workqueue function */
++
++	struct timer_list	timer;		/* Timer for timeouts */
++
++	struct sg_mapping_iter	sg_miter;	/* SG state for PIO */
++	unsigned int		blocks;		/* remaining PIO blocks */
++
++	int			irq;		/* Device IRQ */
++
++	u32			cmd_quick_poll_retries;
++	u32			ns_per_fifo_word;
++
++	/* cached registers */
++	u32			hcfg;
++	u32			cdiv;
++
++	struct mmc_request		*mrq;			/* Current request */
++	struct mmc_command		*cmd;			/* Current command */
++	struct mmc_data			*data;			/* Current data request */
++	unsigned int			data_complete:1;	/* Data finished before cmd */
++
++	unsigned int			flush_fifo:1;		/* Drain the fifo when finishing */
++
++	unsigned int			use_busy:1;		/* Wait for busy interrupt */
++
++	unsigned int			use_sbc:1;		/* Send CMD23 */
++
++	unsigned int			debug:1;		/* Enable debug output */
++	unsigned int			firmware_sets_cdiv:1;	/* Let the firmware manage the clock */
++	unsigned int			reset_clock:1;		/* Reset the clock fore the next request */
++
++	/*DMA part*/
++	struct dma_chan			*dma_chan_rxtx;		/* DMA channel for reads and writes */
++	struct dma_chan			*dma_chan;		/* Channel in use */
++	struct dma_slave_config		dma_cfg_rx;
++	struct dma_slave_config		dma_cfg_tx;
++	struct dma_async_tx_descriptor	*dma_desc;
++	u32				dma_dir;
++	u32				drain_words;
++	struct page 			*drain_page;
++	u32				drain_offset;
++
++	bool				allow_dma;
++	bool				use_dma;
++	/*end of DMA part*/
++
++	int				max_delay;	/* maximum length of time spent waiting */
++	struct timespec64		stop_time;	/* when the last stop was issued */
++	u32				delay_after_stop; /* minimum time between stop and subsequent data transfer */
++	u32				delay_after_this_stop; /* minimum time between this stop and subsequent data transfer */
++	u32				user_overclock_50; /* User's preferred frequency to use when 50MHz is requested (in MHz) */
++	u32				overclock_50;	/* frequency to use when 50MHz is requested (in MHz) */
++	u32				overclock;	/* Current frequency if overclocked, else zero */
++	u32				pio_limit;	/* Maximum block count for PIO (0 = always DMA) */
++
++	u32				sectors;	/* Cached card size in sectors */
++};
++
++#if ENABLE_LOG
++
++struct log_entry_struct {
++	char event[4];
++	u32 timestamp;
++	u32 param1;
++	u32 param2;
++};
++
++typedef struct log_entry_struct LOG_ENTRY_T;
++
++LOG_ENTRY_T *sdhost_log_buf;
++dma_addr_t sdhost_log_addr;
++static u32 sdhost_log_idx;
++static spinlock_t log_lock;
++static void __iomem *timer_base;
++
++#define LOG_ENTRIES (256*1)
++#define LOG_SIZE (sizeof(LOG_ENTRY_T)*LOG_ENTRIES)
++
++static void log_init(struct device *dev, u32 bus_to_phys)
++{
++	spin_lock_init(&log_lock);
++	sdhost_log_buf = dma_alloc_coherent(dev, LOG_SIZE, &sdhost_log_addr,
++					     GFP_KERNEL);
++	if (sdhost_log_buf) {
++		pr_info("sdhost: log_buf @ %p (%llx)\n",
++			sdhost_log_buf, (u64)sdhost_log_addr);
++		timer_base = ioremap(bus_to_phys + 0x7e003000, SZ_4K);
++		if (!timer_base)
++			pr_err("sdhost: failed to remap timer\n");
++	}
++	else
++		pr_err("sdhost: failed to allocate log buf\n");
++}
++
++static void log_event_impl(const char *event, u32 param1, u32 param2)
++{
++	if (sdhost_log_buf) {
++		LOG_ENTRY_T *entry;
++		unsigned long flags;
++
++		spin_lock_irqsave(&log_lock, flags);
++
++		entry = sdhost_log_buf + sdhost_log_idx;
++		memcpy(entry->event, event, 4);
++		entry->timestamp = (readl(timer_base + 4) & 0x3fffffff) +
++			(smp_processor_id()<<30);
++		entry->param1 = param1;
++		entry->param2 = param2;
++		sdhost_log_idx = (sdhost_log_idx + 1) % LOG_ENTRIES;
++
++		spin_unlock_irqrestore(&log_lock, flags);
++	}
++}
++
++static void log_dump(void)
++{
++	if (sdhost_log_buf) {
++		LOG_ENTRY_T *entry;
++		unsigned long flags;
++		int idx;
++
++		spin_lock_irqsave(&log_lock, flags);
++
++		idx = sdhost_log_idx;
++		do {
++			entry = sdhost_log_buf + idx;
++			if (entry->event[0] != '\0')
++				pr_info("[%08x] %.4s %x %x\n",
++				       entry->timestamp,
++				       entry->event,
++				       entry->param1,
++				       entry->param2);
++			idx = (idx + 1) % LOG_ENTRIES;
++		} while (idx != sdhost_log_idx);
++
++		spin_unlock_irqrestore(&log_lock, flags);
++	}
++}
++
++#define log_event(event, param1, param2) log_event_impl(event, (u32)(uintptr_t)param1, (u32)(uintptr_t)param2)
++
++#else
++
++#define log_init(x) (void)0
++#define log_event(event, param1, param2) (void)0
++#define log_dump() (void)0
++
++#endif
++
++static inline void bcm2835_sdhost_write(struct bcm2835_host *host, u32 val, int reg)
++{
++	writel(val, host->ioaddr + reg);
++}
++
++static inline u32 bcm2835_sdhost_read(struct bcm2835_host *host, int reg)
++{
++	return readl(host->ioaddr + reg);
++}
++
++static inline u32 bcm2835_sdhost_read_relaxed(struct bcm2835_host *host, int reg)
++{
++	return readl_relaxed(host->ioaddr + reg);
++}
++
++static void bcm2835_sdhost_dumpcmd(struct bcm2835_host *host,
++				   struct mmc_command *cmd,
++				   const char *label)
++{
++	if (cmd)
++		pr_info("%s:%c%s op %d arg 0x%x flags 0x%x - resp %08x %08x %08x %08x, err %d\n",
++			mmc_hostname(host->mmc),
++			(cmd == host->cmd) ? '>' : ' ',
++			label, cmd->opcode, cmd->arg, cmd->flags,
++			cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3],
++			cmd->error);
++}
++
++static void bcm2835_sdhost_dumpregs(struct bcm2835_host *host)
++{
++	if (host->mrq)
++	{
++		bcm2835_sdhost_dumpcmd(host, host->mrq->sbc, "sbc");
++		bcm2835_sdhost_dumpcmd(host, host->mrq->cmd, "cmd");
++		if (host->mrq->data)
++			pr_info("%s: data blocks %x blksz %x - err %d\n",
++			       mmc_hostname(host->mmc),
++			       host->mrq->data->blocks,
++			       host->mrq->data->blksz,
++			       host->mrq->data->error);
++		bcm2835_sdhost_dumpcmd(host, host->mrq->stop, "stop");
++	}
++
++	pr_info("%s: =========== REGISTER DUMP ===========\n",
++		mmc_hostname(host->mmc));
++
++	pr_info("%s: SDCMD  0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDCMD));
++	pr_info("%s: SDARG  0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDARG));
++	pr_info("%s: SDTOUT 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDTOUT));
++	pr_info("%s: SDCDIV 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDCDIV));
++	pr_info("%s: SDRSP0 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDRSP0));
++	pr_info("%s: SDRSP1 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDRSP1));
++	pr_info("%s: SDRSP2 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDRSP2));
++	pr_info("%s: SDRSP3 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDRSP3));
++	pr_info("%s: SDHSTS 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDHSTS));
++	pr_info("%s: SDVDD  0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDVDD));
++	pr_info("%s: SDEDM  0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDEDM));
++	pr_info("%s: SDHCFG 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDHCFG));
++	pr_info("%s: SDHBCT 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDHBCT));
++	pr_info("%s: SDHBLC 0x%08x\n",
++		mmc_hostname(host->mmc),
++		bcm2835_sdhost_read(host, SDHBLC));
++
++	pr_info("%s: ===========================================\n",
++		mmc_hostname(host->mmc));
++}
++
++static void bcm2835_sdhost_set_power(struct bcm2835_host *host, bool on)
++{
++	bcm2835_sdhost_write(host, on ? 1 : 0, SDVDD);
++}
++
++static void bcm2835_sdhost_reset_internal(struct bcm2835_host *host)
++{
++	u32 temp;
++
++	if (host->debug)
++		pr_info("%s: reset\n", mmc_hostname(host->mmc));
++
++	bcm2835_sdhost_set_power(host, false);
++
++	bcm2835_sdhost_write(host, 0, SDCMD);
++	bcm2835_sdhost_write(host, 0, SDARG);
++	bcm2835_sdhost_write(host, 0xf00000, SDTOUT);
++	bcm2835_sdhost_write(host, 0, SDCDIV);
++	bcm2835_sdhost_write(host, 0x7f8, SDHSTS); /* Write 1s to clear */
++	bcm2835_sdhost_write(host, 0, SDHCFG);
++	bcm2835_sdhost_write(host, 0, SDHBCT);
++	bcm2835_sdhost_write(host, 0, SDHBLC);
++
++	/* Limit fifo usage due to silicon bug */
++	temp = bcm2835_sdhost_read(host, SDEDM);
++	temp &= ~((SDEDM_THRESHOLD_MASK<<SDEDM_READ_THRESHOLD_SHIFT) |
++		  (SDEDM_THRESHOLD_MASK<<SDEDM_WRITE_THRESHOLD_SHIFT));
++	temp |= (FIFO_READ_THRESHOLD << SDEDM_READ_THRESHOLD_SHIFT) |
++		(FIFO_WRITE_THRESHOLD << SDEDM_WRITE_THRESHOLD_SHIFT);
++	bcm2835_sdhost_write(host, temp, SDEDM);
++	mdelay(10);
++	bcm2835_sdhost_set_power(host, true);
++	mdelay(10);
++	host->clock = 0;
++	host->sectors = 0;
++	bcm2835_sdhost_write(host, host->hcfg, SDHCFG);
++	bcm2835_sdhost_write(host, SDCDIV_MAX_CDIV, SDCDIV);
++}
++
++static void bcm2835_sdhost_reset(struct mmc_host *mmc)
++{
++	struct bcm2835_host *host = mmc_priv(mmc);
++	unsigned long flags;
++	spin_lock_irqsave(&host->lock, flags);
++	log_event("RST<", 0, 0);
++
++	bcm2835_sdhost_reset_internal(host);
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
++
++static void bcm2835_sdhost_init(struct bcm2835_host *host, int soft)
++{
++	pr_debug("bcm2835_sdhost_init(%d)\n", soft);
++
++	/* Set interrupt enables */
++	host->hcfg = SDHCFG_BUSY_IRPT_EN;
++
++	bcm2835_sdhost_reset_internal(host);
++
++	if (soft) {
++		/* force clock reconfiguration */
++		host->clock = 0;
++		bcm2835_sdhost_set_ios(host->mmc, &host->mmc->ios);
++	}
++}
++
++static void bcm2835_sdhost_wait_transfer_complete(struct bcm2835_host *host)
++{
++	int timediff;
++	u32 alternate_idle;
++	u32 edm;
++
++	alternate_idle = (host->mrq->data->flags & MMC_DATA_READ) ?
++		SDEDM_FSM_READWAIT : SDEDM_FSM_WRITESTART1;
++
++	edm = bcm2835_sdhost_read(host, SDEDM);
++
++	log_event("WTC<", edm, 0);
++
++	timediff = 0;
++
++	while (1) {
++		u32 fsm = edm & SDEDM_FSM_MASK;
++		if ((fsm == SDEDM_FSM_IDENTMODE) ||
++		    (fsm == SDEDM_FSM_DATAMODE))
++			break;
++		if (fsm == alternate_idle) {
++			bcm2835_sdhost_write(host,
++					     edm | SDEDM_FORCE_DATA_MODE,
++					     SDEDM);
++			break;
++		}
++
++		timediff++;
++		if (timediff == 100000) {
++			pr_err("%s: wait_transfer_complete - still waiting after %d retries\n",
++			       mmc_hostname(host->mmc),
++			       timediff);
++			log_dump();
++			bcm2835_sdhost_dumpregs(host);
++			host->mrq->data->error = -ETIMEDOUT;
++			log_event("WTC!", edm, 0);
++			return;
++		}
++		cpu_relax();
++		edm = bcm2835_sdhost_read(host, SDEDM);
++	}
++	log_event("WTC>", edm, 0);
++}
++
++static void bcm2835_sdhost_finish_data(struct bcm2835_host *host);
++
++static void bcm2835_sdhost_dma_complete(void *param)
++{
++	struct bcm2835_host *host = param;
++	struct mmc_data *data = host->data;
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++	log_event("DMA<", host->data, bcm2835_sdhost_read(host, SDHSTS));
++	log_event("DMA ", bcm2835_sdhost_read(host, SDCMD),
++		  bcm2835_sdhost_read(host, SDEDM));
++
++	if (host->dma_chan) {
++		dma_unmap_sg(host->dma_chan->device->dev,
++			     data->sg, data->sg_len,
++			     host->dma_dir);
++
++		host->dma_chan = NULL;
++	}
++
++	if (host->drain_words) {
++		void *page;
++		u32 *buf;
++
++		if (host->drain_offset & PAGE_MASK) {
++			host->drain_page += host->drain_offset >> PAGE_SHIFT;
++			host->drain_offset &= ~PAGE_MASK;
++		}
++
++		page = kmap_atomic(host->drain_page);
++		buf = page + host->drain_offset;
++
++		while (host->drain_words) {
++			u32 edm = bcm2835_sdhost_read(host, SDEDM);
++			if ((edm >> 4) & 0x1f)
++				*(buf++) = bcm2835_sdhost_read(host,
++							       SDDATA);
++			host->drain_words--;
++		}
++
++		kunmap_atomic(page);
++	}
++
++	bcm2835_sdhost_finish_data(host);
++
++	log_event("DMA>", host->data, 0);
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_read_block_pio(struct bcm2835_host *host)
++{
++	unsigned long flags;
++	size_t blksize, len;
++	u32 *buf;
++	unsigned long wait_max;
++
++	blksize = host->data->blksz;
++
++	wait_max = jiffies + msecs_to_jiffies(host->pio_timeout);
++
++	local_irq_save(flags);
++
++	while (blksize) {
++		int copy_words;
++		u32 hsts = 0;
++
++		if (!sg_miter_next(&host->sg_miter)) {
++			host->data->error = -EINVAL;
++			break;
++		}
++
++		len = min(host->sg_miter.length, blksize);
++		if (len % 4) {
++			host->data->error = -EINVAL;
++			break;
++		}
++
++		blksize -= len;
++		host->sg_miter.consumed = len;
++
++		buf = (u32 *)host->sg_miter.addr;
++
++		copy_words = len/4;
++
++		while (copy_words) {
++			int burst_words, words;
++			u32 edm;
++
++			burst_words = SDDATA_FIFO_PIO_BURST;
++			if (burst_words > copy_words)
++				burst_words = copy_words;
++			edm = bcm2835_sdhost_read(host, SDEDM);
++			words = ((edm >> 4) & 0x1f);
++
++			if (words < burst_words) {
++				int fsm_state = (edm & SDEDM_FSM_MASK);
++				if ((fsm_state != SDEDM_FSM_READDATA) &&
++				    (fsm_state != SDEDM_FSM_READWAIT) &&
++				    (fsm_state != SDEDM_FSM_READCRC)) {
++					hsts = bcm2835_sdhost_read(host,
++								   SDHSTS);
++					pr_info("%s: fsm %x, hsts %x\n",
++					       mmc_hostname(host->mmc),
++					       fsm_state, hsts);
++					if (hsts & SDHSTS_ERROR_MASK)
++						break;
++				}
++
++				if (time_after(jiffies, wait_max)) {
++					pr_err("%s: PIO read timeout - EDM %x\n",
++					       mmc_hostname(host->mmc),
++					       edm);
++					hsts = SDHSTS_REW_TIME_OUT;
++					break;
++				}
++				ndelay((burst_words - words) *
++				       host->ns_per_fifo_word);
++				continue;
++			} else if (words > copy_words) {
++				words = copy_words;
++			}
++
++			copy_words -= words;
++
++			while (words) {
++				*(buf++) = bcm2835_sdhost_read(host, SDDATA);
++				words--;
++			}
++		}
++
++		if (hsts & SDHSTS_ERROR_MASK)
++			break;
++	}
++
++	sg_miter_stop(&host->sg_miter);
++
++	local_irq_restore(flags);
++}
++
++static void bcm2835_sdhost_write_block_pio(struct bcm2835_host *host)
++{
++	unsigned long flags;
++	size_t blksize, len;
++	u32 *buf;
++	unsigned long wait_max;
++
++	blksize = host->data->blksz;
++
++	wait_max = jiffies + msecs_to_jiffies(host->pio_timeout);
++
++	local_irq_save(flags);
++
++	while (blksize) {
++		int copy_words;
++		u32 hsts = 0;
++
++		if (!sg_miter_next(&host->sg_miter)) {
++			host->data->error = -EINVAL;
++			break;
++		}
++
++		len = min(host->sg_miter.length, blksize);
++		if (len % 4) {
++			host->data->error = -EINVAL;
++			break;
++		}
++
++		blksize -= len;
++		host->sg_miter.consumed = len;
++
++		buf = (u32 *)host->sg_miter.addr;
++
++		copy_words = len/4;
++
++		while (copy_words) {
++			int burst_words, words;
++			u32 edm;
++
++			burst_words = SDDATA_FIFO_PIO_BURST;
++			if (burst_words > copy_words)
++				burst_words = copy_words;
++			edm = bcm2835_sdhost_read(host, SDEDM);
++			words = SDDATA_FIFO_WORDS - ((edm >> 4) & 0x1f);
++
++			if (words < burst_words) {
++				int fsm_state = (edm & SDEDM_FSM_MASK);
++				if ((fsm_state != SDEDM_FSM_WRITEDATA) &&
++				    (fsm_state != SDEDM_FSM_WRITESTART1) &&
++				    (fsm_state != SDEDM_FSM_WRITESTART2)) {
++					hsts = bcm2835_sdhost_read(host,
++								   SDHSTS);
++					pr_info("%s: fsm %x, hsts %x\n",
++					       mmc_hostname(host->mmc),
++					       fsm_state, hsts);
++					if (hsts & SDHSTS_ERROR_MASK)
++						break;
++				}
++
++				if (time_after(jiffies, wait_max)) {
++					pr_err("%s: PIO write timeout - EDM %x\n",
++					       mmc_hostname(host->mmc),
++					       edm);
++					hsts = SDHSTS_REW_TIME_OUT;
++					break;
++				}
++				ndelay((burst_words - words) *
++				       host->ns_per_fifo_word);
++				continue;
++			} else if (words > copy_words) {
++				words = copy_words;
++			}
++
++			copy_words -= words;
++
++			while (words) {
++				bcm2835_sdhost_write(host, *(buf++), SDDATA);
++				words--;
++			}
++		}
++
++		if (hsts & SDHSTS_ERROR_MASK)
++			break;
++	}
++
++	sg_miter_stop(&host->sg_miter);
++
++	local_irq_restore(flags);
++}
++
++static void bcm2835_sdhost_transfer_pio(struct bcm2835_host *host)
++{
++	u32 sdhsts;
++	bool is_read;
++	BUG_ON(!host->data);
++	log_event("XFP<", host->data, host->blocks);
++
++	is_read = (host->data->flags & MMC_DATA_READ) != 0;
++	if (is_read)
++		bcm2835_sdhost_read_block_pio(host);
++	else
++		bcm2835_sdhost_write_block_pio(host);
++
++	sdhsts = bcm2835_sdhost_read(host, SDHSTS);
++	if (sdhsts & (SDHSTS_CRC16_ERROR |
++		      SDHSTS_CRC7_ERROR |
++		      SDHSTS_FIFO_ERROR)) {
++		pr_err("%s: %s transfer error - HSTS %x\n",
++		       mmc_hostname(host->mmc),
++		       is_read ? "read" : "write",
++		       sdhsts);
++		host->data->error = -EILSEQ;
++	} else if ((sdhsts & (SDHSTS_CMD_TIME_OUT |
++			      SDHSTS_REW_TIME_OUT))) {
++		pr_err("%s: %s timeout error - HSTS %x\n",
++		       mmc_hostname(host->mmc),
++		       is_read ? "read" : "write",
++		       sdhsts);
++		host->data->error = -ETIMEDOUT;
++	}
++	log_event("XFP>", host->data, host->blocks);
++}
++
++static void bcm2835_sdhost_prepare_dma(struct bcm2835_host *host,
++	struct mmc_data *data)
++{
++	int len, dir_data, dir_slave;
++	struct dma_async_tx_descriptor *desc = NULL;
++	struct dma_chan *dma_chan;
++
++	log_event("PRD<", data, 0);
++	pr_debug("bcm2835_sdhost_prepare_dma()\n");
++
++	dma_chan = host->dma_chan_rxtx;
++	if (data->flags & MMC_DATA_READ) {
++		dir_data = DMA_FROM_DEVICE;
++		dir_slave = DMA_DEV_TO_MEM;
++	} else {
++		dir_data = DMA_TO_DEVICE;
++		dir_slave = DMA_MEM_TO_DEV;
++	}
++	log_event("PRD1", dma_chan, 0);
++
++	BUG_ON(!dma_chan->device);
++	BUG_ON(!dma_chan->device->dev);
++	BUG_ON(!data->sg);
++
++	/* The block doesn't manage the FIFO DREQs properly for multi-block
++	   transfers, so don't attempt to DMA the final few words.
++	   Unfortunately this requires the final sg entry to be trimmed.
++	   N.B. This code demands that the overspill is contained in
++	   a single sg entry.
++	*/
++
++	host->drain_words = 0;
++	if ((data->blocks > 1) && (dir_data == DMA_FROM_DEVICE)) {
++		struct scatterlist *sg;
++		u32 len;
++		int i;
++
++		len = min((u32)(FIFO_READ_THRESHOLD - 1) * 4,
++			  (u32)data->blocks * data->blksz);
++
++		for_each_sg(data->sg, sg, data->sg_len, i) {
++			if (sg_is_last(sg)) {
++				BUG_ON(sg->length < len);
++				sg->length -= len;
++				host->drain_page = sg_page(sg);
++				host->drain_offset = sg->offset + sg->length;
++			}
++		}
++		host->drain_words = len/4;
++	}
++
++	/* The parameters have already been validated, so this will not fail */
++	(void)dmaengine_slave_config(dma_chan,
++				     (dir_data == DMA_FROM_DEVICE) ?
++				     &host->dma_cfg_rx :
++				     &host->dma_cfg_tx);
++
++	len = dma_map_sg(dma_chan->device->dev, data->sg, data->sg_len,
++			 dir_data);
++
++	log_event("PRD2", len, 0);
++	if (len > 0)
++		desc = dmaengine_prep_slave_sg(dma_chan, data->sg,
++					       len, dir_slave,
++					       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
++	log_event("PRD3", desc, 0);
++
++	if (desc) {
++		desc->callback = bcm2835_sdhost_dma_complete;
++		desc->callback_param = host;
++		host->dma_desc = desc;
++		host->dma_chan = dma_chan;
++		host->dma_dir = dir_data;
++	}
++	log_event("PDM>", data, 0);
++}
++
++static void bcm2835_sdhost_start_dma(struct bcm2835_host *host)
++{
++	log_event("SDMA", host->data, host->dma_chan);
++	dmaengine_submit(host->dma_desc);
++	dma_async_issue_pending(host->dma_chan);
++}
++
++static void bcm2835_sdhost_set_transfer_irqs(struct bcm2835_host *host)
++{
++	u32 all_irqs = SDHCFG_DATA_IRPT_EN | SDHCFG_BLOCK_IRPT_EN |
++		SDHCFG_BUSY_IRPT_EN;
++	if (host->dma_desc)
++		host->hcfg = (host->hcfg & ~all_irqs) |
++			SDHCFG_BUSY_IRPT_EN;
++	else
++		host->hcfg = (host->hcfg & ~all_irqs) |
++			SDHCFG_DATA_IRPT_EN |
++			SDHCFG_BUSY_IRPT_EN;
++
++	bcm2835_sdhost_write(host, host->hcfg, SDHCFG);
++}
++
++static void bcm2835_sdhost_prepare_data(struct bcm2835_host *host, struct mmc_command *cmd)
++{
++	struct mmc_data *data = cmd->data;
++
++	WARN_ON(host->data);
++
++	host->data = data;
++	if (!data)
++		return;
++
++	/* Sanity checks */
++	BUG_ON(data->blksz * data->blocks > 524288);
++	BUG_ON(data->blksz > host->mmc->max_blk_size);
++	BUG_ON(data->blocks > 65535);
++
++	host->data_complete = 0;
++	host->flush_fifo = 0;
++	host->data->bytes_xfered = 0;
++
++	if (!host->sectors && host->mmc->card) {
++		struct mmc_card *card = host->mmc->card;
++		if (!mmc_card_sd(card) && mmc_card_blockaddr(card)) {
++			/*
++			 * The EXT_CSD sector count is in number of 512 byte
++			 * sectors.
++			 */
++			host->sectors = card->ext_csd.sectors;
++		} else {
++			/*
++			 * The CSD capacity field is in units of read_blkbits.
++			 * set_capacity takes units of 512 bytes.
++			 */
++			host->sectors = card->csd.capacity <<
++				(card->csd.read_blkbits - 9);
++		}
++	}
++
++	if (!host->dma_desc) {
++		/* Use PIO */
++		int flags = SG_MITER_ATOMIC;
++
++		if (data->flags & MMC_DATA_READ)
++			flags |= SG_MITER_TO_SG;
++		else
++			flags |= SG_MITER_FROM_SG;
++		sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
++		host->blocks = data->blocks;
++	}
++
++	bcm2835_sdhost_set_transfer_irqs(host);
++
++	bcm2835_sdhost_write(host, data->blksz, SDHBCT);
++	bcm2835_sdhost_write(host, data->blocks, SDHBLC);
++
++	BUG_ON(!host->data);
++}
++
++bool bcm2835_sdhost_send_command(struct bcm2835_host *host,
++				 struct mmc_command *cmd)
++{
++	u32 sdcmd, sdhsts;
++	unsigned long timeout;
++	int delay;
++
++	WARN_ON(host->cmd);
++	log_event("CMD<", cmd->opcode, cmd->arg);
++
++	if (cmd->data)
++		pr_debug("%s: send_command %d 0x%x "
++			 "(flags 0x%x) - %s %d*%d\n",
++			 mmc_hostname(host->mmc),
++			 cmd->opcode, cmd->arg, cmd->flags,
++			 (cmd->data->flags & MMC_DATA_READ) ?
++			 "read" : "write", cmd->data->blocks,
++			 cmd->data->blksz);
++	else
++		pr_debug("%s: send_command %d 0x%x (flags 0x%x)\n",
++			 mmc_hostname(host->mmc),
++			 cmd->opcode, cmd->arg, cmd->flags);
++
++	/* Wait max 100 ms */
++	timeout = 10000;
++
++	while (bcm2835_sdhost_read(host, SDCMD) & SDCMD_NEW_FLAG) {
++		if (timeout == 0) {
++			pr_warn("%s: previous command never completed.\n",
++				mmc_hostname(host->mmc));
++			if (host->debug)
++				bcm2835_sdhost_dumpregs(host);
++			cmd->error = -EILSEQ;
++			tasklet_schedule(&host->finish_tasklet);
++			return false;
++		}
++		timeout--;
++		udelay(10);
++	}
++
++	delay = (10000 - timeout)/100;
++	if (delay > host->max_delay) {
++		host->max_delay = delay;
++		pr_warn("%s: controller hung for %d ms\n",
++			   mmc_hostname(host->mmc),
++			   host->max_delay);
++	}
++
++	timeout = jiffies;
++	if (!cmd->data && cmd->busy_timeout > 9000)
++		timeout += DIV_ROUND_UP(cmd->busy_timeout, 1000) * HZ + HZ;
++	else
++		timeout += 10 * HZ;
++	mod_timer(&host->timer, timeout);
++
++	host->cmd = cmd;
++
++	/* Clear any error flags */
++	sdhsts = bcm2835_sdhost_read(host, SDHSTS);
++	if (sdhsts & SDHSTS_ERROR_MASK)
++		bcm2835_sdhost_write(host, sdhsts, SDHSTS);
++
++	if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
++		pr_err("%s: unsupported response type!\n",
++			mmc_hostname(host->mmc));
++		cmd->error = -EINVAL;
++		tasklet_schedule(&host->finish_tasklet);
++		return false;
++	}
++
++	bcm2835_sdhost_prepare_data(host, cmd);
++
++	bcm2835_sdhost_write(host, cmd->arg, SDARG);
++
++	sdcmd = cmd->opcode & SDCMD_CMD_MASK;
++
++	host->use_busy = 0;
++	if (!(cmd->flags & MMC_RSP_PRESENT)) {
++		sdcmd |= SDCMD_NO_RESPONSE;
++	} else {
++		if (cmd->flags & MMC_RSP_136)
++			sdcmd |= SDCMD_LONG_RESPONSE;
++		if (cmd->flags & MMC_RSP_BUSY) {
++			sdcmd |= SDCMD_BUSYWAIT;
++			host->use_busy = 1;
++		}
++	}
++
++	if (cmd->data) {
++		log_event("CMDD", cmd->data->blocks, cmd->data->blksz);
++		if (host->delay_after_this_stop) {
++			struct timespec64 now;
++			int time_since_stop;
++
++			ktime_get_real_ts64(&now);
++			time_since_stop = now.tv_sec - host->stop_time.tv_sec;
++			if (time_since_stop < 2) {
++				/* Possibly less than one second */
++				time_since_stop = time_since_stop * 1000000 +
++					(now.tv_nsec - host->stop_time.tv_nsec)/1000;
++				if (time_since_stop <
++				    host->delay_after_this_stop)
++					udelay(host->delay_after_this_stop -
++					       time_since_stop);
++			}
++		}
++
++		host->delay_after_this_stop = host->delay_after_stop;
++		if ((cmd->data->flags & MMC_DATA_READ) && !host->use_sbc) {
++			/* See if read crosses one of the hazardous sectors */
++			u32 first_blk, last_blk;
++
++			/* Intentionally include the following sector because
++			   without CMD23/SBC the read may run on. */
++			first_blk = host->mrq->cmd->arg;
++			last_blk = first_blk + cmd->data->blocks;
++
++			if (((last_blk >= (host->sectors - 64)) &&
++			     (first_blk <= (host->sectors - 64))) ||
++			    ((last_blk >= (host->sectors - 32)) &&
++			     (first_blk <= (host->sectors - 32)))) {
++				host->delay_after_this_stop =
++					max(250u, host->delay_after_stop);
++			}
++		}
++
++		if (cmd->data->flags & MMC_DATA_WRITE)
++			sdcmd |= SDCMD_WRITE_CMD;
++		if (cmd->data->flags & MMC_DATA_READ)
++			sdcmd |= SDCMD_READ_CMD;
++	}
++
++	bcm2835_sdhost_write(host, sdcmd | SDCMD_NEW_FLAG, SDCMD);
++
++	return true;
++}
++
++static void bcm2835_sdhost_finish_command(struct bcm2835_host *host,
++					  unsigned long *irq_flags);
++static void bcm2835_sdhost_transfer_complete(struct bcm2835_host *host);
++
++static void bcm2835_sdhost_finish_data(struct bcm2835_host *host)
++{
++	struct mmc_data *data;
++
++	data = host->data;
++	BUG_ON(!data);
++
++	log_event("FDA<", host->mrq, host->cmd);
++	pr_debug("finish_data(error %d, stop %d, sbc %d)\n",
++	       data->error, data->stop ? 1 : 0,
++	       host->mrq->sbc ? 1 : 0);
++
++	host->hcfg &= ~(SDHCFG_DATA_IRPT_EN | SDHCFG_BLOCK_IRPT_EN);
++	bcm2835_sdhost_write(host, host->hcfg, SDHCFG);
++
++	data->bytes_xfered = data->error ? 0 : (data->blksz * data->blocks);
++
++	host->data_complete = 1;
++
++	if (host->cmd) {
++		/*
++		 * Data managed to finish before the
++		 * command completed. Make sure we do
++		 * things in the proper order.
++		 */
++		pr_debug("Finished early - HSTS %x\n",
++			 bcm2835_sdhost_read(host, SDHSTS));
++	}
++	else
++		bcm2835_sdhost_transfer_complete(host);
++	log_event("FDA>", host->mrq, host->cmd);
++}
++
++static void bcm2835_sdhost_transfer_complete(struct bcm2835_host *host)
++{
++	struct mmc_data *data;
++
++	BUG_ON(host->cmd);
++	BUG_ON(!host->data);
++	BUG_ON(!host->data_complete);
++
++	data = host->data;
++	host->data = NULL;
++
++	log_event("TCM<", data, data->error);
++	pr_debug("transfer_complete(error %d, stop %d)\n",
++	       data->error, data->stop ? 1 : 0);
++
++	/*
++	 * Need to send CMD12 if -
++	 * a) open-ended multiblock transfer (no CMD23)
++	 * b) error in multiblock transfer
++	 */
++	if (host->mrq->stop && (data->error || !host->use_sbc)) {
++		if (bcm2835_sdhost_send_command(host, host->mrq->stop)) {
++			/* No busy, so poll for completion */
++			if (!host->use_busy)
++				bcm2835_sdhost_finish_command(host, NULL);
++
++			if (host->delay_after_this_stop)
++				ktime_get_real_ts64(&host->stop_time);
++		}
++	} else {
++		bcm2835_sdhost_wait_transfer_complete(host);
++		tasklet_schedule(&host->finish_tasklet);
++	}
++	log_event("TCM>", data, 0);
++}
++
++/* If irq_flags is valid, the caller is in a thread context and is allowed
++   to sleep */
++static void bcm2835_sdhost_finish_command(struct bcm2835_host *host,
++					  unsigned long *irq_flags)
++{
++	u32 sdcmd;
++	u32 retries;
++#ifdef DEBUG
++	struct timespec64 before, after;
++	int timediff = 0;
++#endif
++
++	log_event("FCM<", host->mrq, host->cmd);
++	pr_debug("finish_command(%x)\n", bcm2835_sdhost_read(host, SDCMD));
++
++	BUG_ON(!host->cmd || !host->mrq);
++
++	/* Poll quickly at first */
++
++	retries = host->cmd_quick_poll_retries;
++	if (!retries) {
++		/* Work out how many polls take 1us by timing 10us */
++		struct timespec64 start, now;
++		int us_diff;
++
++		retries = 1;
++		do {
++			int i;
++
++			retries *= 2;
++
++			ktime_get_real_ts64(&start);
++
++			for (i = 0; i < retries; i++) {
++				cpu_relax();
++				sdcmd = bcm2835_sdhost_read(host, SDCMD);
++			}
++
++			ktime_get_real_ts64(&now);
++			us_diff = (now.tv_sec - start.tv_sec) * 1000000 +
++				(now.tv_nsec - start.tv_nsec)/1000;
++		} while (us_diff < 10);
++
++		host->cmd_quick_poll_retries = ((retries * us_diff + 9)*CMD_DALLY_US)/10 + 1;
++		retries = 1; // We've already waited long enough this time
++	}
++
++	for (sdcmd = bcm2835_sdhost_read(host, SDCMD);
++	     (sdcmd & SDCMD_NEW_FLAG) && retries;
++	     retries--) {
++		cpu_relax();
++		sdcmd = bcm2835_sdhost_read(host, SDCMD);
++	}
++
++	if (!retries) {
++		unsigned long wait_max;
++
++		if (!irq_flags) {
++			/* Schedule the work */
++			log_event("CWWQ", 0, 0);
++			schedule_work(&host->cmd_wait_wq);
++			return;
++		}
++
++		/* Wait max 100 ms */
++		wait_max = jiffies + msecs_to_jiffies(100);
++		while (time_before(jiffies, wait_max)) {
++			spin_unlock_irqrestore(&host->lock, *irq_flags);
++			usleep_range(1, 10);
++			spin_lock_irqsave(&host->lock, *irq_flags);
++			sdcmd = bcm2835_sdhost_read(host, SDCMD);
++			if (!(sdcmd & SDCMD_NEW_FLAG))
++				break;
++		}
++	}
++
++	/* Check for errors */
++	if (sdcmd & SDCMD_NEW_FLAG) {
++		if (host->debug) {
++			pr_err("%s: command %d never completed.\n",
++			       mmc_hostname(host->mmc), host->cmd->opcode);
++			bcm2835_sdhost_dumpregs(host);
++		}
++		host->cmd->error = -EILSEQ;
++		tasklet_schedule(&host->finish_tasklet);
++		return;
++	} else if (sdcmd & SDCMD_FAIL_FLAG) {
++		u32 sdhsts = bcm2835_sdhost_read(host, SDHSTS);
++
++		/* Clear the errors */
++		bcm2835_sdhost_write(host, SDHSTS_ERROR_MASK, SDHSTS);
++
++		if (host->debug)
++			pr_info("%s: error detected - CMD %x, HSTS %03x, EDM %x\n",
++				mmc_hostname(host->mmc), sdcmd, sdhsts,
++				bcm2835_sdhost_read(host, SDEDM));
++
++		if ((sdhsts & SDHSTS_CRC7_ERROR) &&
++		    (host->cmd->opcode == 1)) {
++			if (host->debug)
++				pr_info("%s: ignoring CRC7 error for CMD1\n",
++					mmc_hostname(host->mmc));
++		} else {
++			u32 edm, fsm;
++
++			if (sdhsts & SDHSTS_CMD_TIME_OUT) {
++				if (host->debug)
++					pr_warn("%s: command %d timeout\n",
++					       mmc_hostname(host->mmc),
++					       host->cmd->opcode);
++				host->cmd->error = -ETIMEDOUT;
++			} else {
++				pr_warn("%s: unexpected command %d error\n",
++				       mmc_hostname(host->mmc),
++				       host->cmd->opcode);
++				host->cmd->error = -EILSEQ;
++			}
++
++			edm = readl(host->ioaddr + SDEDM);
++			fsm = edm & SDEDM_FSM_MASK;
++			if (fsm == SDEDM_FSM_READWAIT ||
++			    fsm == SDEDM_FSM_WRITESTART1)
++				writel(edm | SDEDM_FORCE_DATA_MODE,
++				       host->ioaddr + SDEDM);
++			tasklet_schedule(&host->finish_tasklet);
++			return;
++		}
++	}
++
++	if (host->cmd->flags & MMC_RSP_PRESENT) {
++		if (host->cmd->flags & MMC_RSP_136) {
++			int i;
++			for (i = 0; i < 4; i++)
++				host->cmd->resp[3 - i] = bcm2835_sdhost_read(host, SDRSP0 + i*4);
++			pr_debug("%s: finish_command %08x %08x %08x %08x\n",
++				 mmc_hostname(host->mmc),
++				 host->cmd->resp[0], host->cmd->resp[1], host->cmd->resp[2], host->cmd->resp[3]);
++			log_event("RSP ", host->cmd->resp[0], host->cmd->resp[1]);
++		} else {
++			host->cmd->resp[0] = bcm2835_sdhost_read(host, SDRSP0);
++			pr_debug("%s: finish_command %08x\n",
++				 mmc_hostname(host->mmc),
++				 host->cmd->resp[0]);
++			log_event("RSP ", host->cmd->resp[0], 0);
++		}
++	}
++
++	if (host->cmd == host->mrq->sbc) {
++		/* Finished CMD23, now send actual command. */
++		host->cmd = NULL;
++		if (bcm2835_sdhost_send_command(host, host->mrq->cmd)) {
++			if (host->data && host->dma_desc)
++				/* DMA transfer starts now, PIO starts after irq */
++				bcm2835_sdhost_start_dma(host);
++
++			if (!host->use_busy)
++				bcm2835_sdhost_finish_command(host, NULL);
++		}
++	} else if (host->cmd == host->mrq->stop) {
++		/* Finished CMD12 */
++		tasklet_schedule(&host->finish_tasklet);
++	} else {
++		/* Processed actual command. */
++		host->cmd = NULL;
++		if (!host->data)
++			tasklet_schedule(&host->finish_tasklet);
++		else if (host->data_complete)
++			bcm2835_sdhost_transfer_complete(host);
++	}
++	log_event("FCM>", host->mrq, host->cmd);
++}
++
++static void bcm2835_sdhost_timeout(struct timer_list *t)
++{
++	struct bcm2835_host *host = from_timer(host, t, timer);
++	unsigned long flags;
++
++	spin_lock_irqsave(&host->lock, flags);
++	log_event("TIM<", 0, 0);
++
++	if (host->mrq) {
++		pr_err("%s: timeout waiting for hardware interrupt.\n",
++			mmc_hostname(host->mmc));
++		log_dump();
++		bcm2835_sdhost_dumpregs(host);
++
++		if (host->data) {
++			host->data->error = -ETIMEDOUT;
++			bcm2835_sdhost_finish_data(host);
++		} else {
++			if (host->cmd)
++				host->cmd->error = -ETIMEDOUT;
++			else
++				host->mrq->cmd->error = -ETIMEDOUT;
++
++			pr_debug("timeout_timer tasklet_schedule\n");
++			tasklet_schedule(&host->finish_tasklet);
++		}
++	}
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_busy_irq(struct bcm2835_host *host, u32 intmask)
++{
++	log_event("IRQB", host->cmd, intmask);
++	if (!host->cmd) {
++		pr_err("%s: got command busy interrupt 0x%08x even "
++			"though no command operation was in progress.\n",
++			mmc_hostname(host->mmc), (unsigned)intmask);
++		bcm2835_sdhost_dumpregs(host);
++		return;
++	}
++
++	if (!host->use_busy) {
++		pr_err("%s: got command busy interrupt 0x%08x even "
++			"though not expecting one.\n",
++			mmc_hostname(host->mmc), (unsigned)intmask);
++		bcm2835_sdhost_dumpregs(host);
++		return;
++	}
++	host->use_busy = 0;
++
++	if (intmask & SDHSTS_ERROR_MASK)
++	{
++		pr_err("sdhost_busy_irq: intmask %x, data %p\n", intmask, host->mrq->data);
++		if (intmask & SDHSTS_CRC7_ERROR)
++			host->cmd->error = -EILSEQ;
++		else if (intmask & (SDHSTS_CRC16_ERROR |
++				    SDHSTS_FIFO_ERROR)) {
++			if (host->mrq->data)
++				host->mrq->data->error = -EILSEQ;
++			else
++				host->cmd->error = -EILSEQ;
++		} else if (intmask & SDHSTS_REW_TIME_OUT) {
++			if (host->mrq->data)
++				host->mrq->data->error = -ETIMEDOUT;
++			else
++				host->cmd->error = -ETIMEDOUT;
++		} else if (intmask & SDHSTS_CMD_TIME_OUT)
++			host->cmd->error = -ETIMEDOUT;
++
++		if (host->debug) {
++			log_dump();
++			bcm2835_sdhost_dumpregs(host);
++		}
++	}
++	else
++		bcm2835_sdhost_finish_command(host, NULL);
++}
++
++static void bcm2835_sdhost_data_irq(struct bcm2835_host *host, u32 intmask)
++{
++	/* There are no dedicated data/space available interrupt
++	   status bits, so it is necessary to use the single shared
++	   data/space available FIFO status bits. It is therefore not
++	   an error to get here when there is no data transfer in
++	   progress. */
++	log_event("IRQD", host->data, intmask);
++	if (!host->data)
++		return;
++
++	if (intmask & (SDHSTS_CRC16_ERROR |
++		       SDHSTS_FIFO_ERROR |
++		       SDHSTS_REW_TIME_OUT)) {
++		if (intmask & (SDHSTS_CRC16_ERROR |
++			       SDHSTS_FIFO_ERROR))
++			host->data->error = -EILSEQ;
++		else
++			host->data->error = -ETIMEDOUT;
++
++		if (host->debug) {
++			log_dump();
++			bcm2835_sdhost_dumpregs(host);
++		}
++	}
++
++	if (host->data->error) {
++		bcm2835_sdhost_finish_data(host);
++	} else if (host->data->flags & MMC_DATA_WRITE) {
++		/* Use the block interrupt for writes after the first block */
++		host->hcfg &= ~(SDHCFG_DATA_IRPT_EN);
++		host->hcfg |= SDHCFG_BLOCK_IRPT_EN;
++		bcm2835_sdhost_write(host, host->hcfg, SDHCFG);
++		bcm2835_sdhost_transfer_pio(host);
++	} else {
++		bcm2835_sdhost_transfer_pio(host);
++		host->blocks--;
++		if ((host->blocks == 0) || host->data->error)
++			bcm2835_sdhost_finish_data(host);
++	}
++}
++
++static void bcm2835_sdhost_block_irq(struct bcm2835_host *host, u32 intmask)
++{
++	log_event("IRQK", host->data, intmask);
++	if (!host->data) {
++		pr_err("%s: got block interrupt 0x%08x even "
++			"though no data operation was in progress.\n",
++			mmc_hostname(host->mmc), (unsigned)intmask);
++		bcm2835_sdhost_dumpregs(host);
++		return;
++	}
++
++	if (intmask & (SDHSTS_CRC16_ERROR |
++		       SDHSTS_FIFO_ERROR |
++		       SDHSTS_REW_TIME_OUT)) {
++		if (intmask & (SDHSTS_CRC16_ERROR |
++			       SDHSTS_FIFO_ERROR))
++			host->data->error = -EILSEQ;
++		else
++			host->data->error = -ETIMEDOUT;
++
++		if (host->debug) {
++			log_dump();
++			bcm2835_sdhost_dumpregs(host);
++		}
++	}
++
++	if (!host->dma_desc) {
++		BUG_ON(!host->blocks);
++		if (host->data->error || (--host->blocks == 0)) {
++			bcm2835_sdhost_finish_data(host);
++		} else {
++			bcm2835_sdhost_transfer_pio(host);
++		}
++	} else if (host->data->flags & MMC_DATA_WRITE) {
++		bcm2835_sdhost_finish_data(host);
++	}
++}
++
++static irqreturn_t bcm2835_sdhost_irq(int irq, void *dev_id)
++{
++	irqreturn_t result = IRQ_NONE;
++	struct bcm2835_host *host = dev_id;
++	u32 intmask;
++
++	spin_lock(&host->lock);
++
++	intmask = bcm2835_sdhost_read(host, SDHSTS);
++	log_event("IRQ<", intmask, 0);
++
++	bcm2835_sdhost_write(host,
++			     SDHSTS_BUSY_IRPT |
++			     SDHSTS_BLOCK_IRPT |
++			     SDHSTS_SDIO_IRPT |
++			     SDHSTS_DATA_FLAG,
++			     SDHSTS);
++
++	if (intmask & SDHSTS_BLOCK_IRPT) {
++		bcm2835_sdhost_block_irq(host, intmask);
++		result = IRQ_HANDLED;
++	}
++
++	if (intmask & SDHSTS_BUSY_IRPT) {
++		bcm2835_sdhost_busy_irq(host, intmask);
++		result = IRQ_HANDLED;
++	}
++
++	/* There is no true data interrupt status bit, so it is
++	   necessary to qualify the data flag with the interrupt
++	   enable bit */
++	if ((intmask & SDHSTS_DATA_FLAG) &&
++	    (host->hcfg & SDHCFG_DATA_IRPT_EN)) {
++		bcm2835_sdhost_data_irq(host, intmask);
++		result = IRQ_HANDLED;
++	}
++
++	log_event("IRQ>", bcm2835_sdhost_read(host, SDHSTS), 0);
++	spin_unlock(&host->lock);
++
++	return result;
++}
++
++void bcm2835_sdhost_set_clock(struct bcm2835_host *host, unsigned int clock)
++{
++	int div = 0; /* Initialized for compiler warning */
++	unsigned int input_clock = clock;
++	unsigned long flags;
++
++	if (host->debug)
++		pr_info("%s: set_clock(%d)\n", mmc_hostname(host->mmc), clock);
++
++	if (host->overclock_50 && (clock == 50*MHZ))
++		clock = host->overclock_50 * MHZ + (MHZ - 1);
++
++	/* The SDCDIV register has 11 bits, and holds (div - 2).
++	   But in data mode the max is 50MHz wihout a minimum, and only the
++	   bottom 3 bits are used. Since the switch over is automatic (unless
++	   we have marked the card as slow...), chosen values have to make
++	   sense in both modes.
++	   Ident mode must be 100-400KHz, so can range check the requested
++	   clock. CMD15 must be used to return to data mode, so this can be
++	   monitored.
++
++	   clock 250MHz -> 0->125MHz, 1->83.3MHz, 2->62.5MHz, 3->50.0MHz
++                           4->41.7MHz, 5->35.7MHz, 6->31.3MHz, 7->27.8MHz
++
++			 623->400KHz/27.8MHz
++			 reset value (507)->491159/50MHz
++
++	   BUT, the 3-bit clock divisor in data mode is too small if the
++	   core clock is higher than 250MHz, so instead use the SLOW_CARD
++	   configuration bit to force the use of the ident clock divisor
++	   at all times.
++	*/
++
++	host->mmc->actual_clock = 0;
++
++	if (host->firmware_sets_cdiv) {
++		u32 msg[3] = { clock, 0, 0 };
++
++		rpi_firmware_property(rpi_firmware_get(NULL),
++				      RPI_FIRMWARE_SET_SDHOST_CLOCK,
++				      &msg, sizeof(msg));
++
++		clock = max(msg[1], msg[2]);
++		spin_lock_irqsave(&host->lock, flags);
++	} else {
++		spin_lock_irqsave(&host->lock, flags);
++		if (clock < 100000) {
++			/* Can't stop the clock, but make it as slow as
++			 * possible to show willing
++			 */
++			host->cdiv = SDCDIV_MAX_CDIV;
++			bcm2835_sdhost_write(host, host->cdiv, SDCDIV);
++			spin_unlock_irqrestore(&host->lock, flags);
++			return;
++		}
++
++		div = host->max_clk / clock;
++		if (div < 2)
++			div = 2;
++		if ((host->max_clk / div) > clock)
++			div++;
++		div -= 2;
++
++		if (div > SDCDIV_MAX_CDIV)
++			div = SDCDIV_MAX_CDIV;
++
++		clock = host->max_clk / (div + 2);
++
++		host->cdiv = div;
++		bcm2835_sdhost_write(host, host->cdiv, SDCDIV);
++
++		if (host->debug)
++			pr_info("%s: clock=%d -> max_clk=%d, cdiv=%x "
++				"(actual clock %d)\n",
++				mmc_hostname(host->mmc), input_clock,
++				host->max_clk, host->cdiv,
++				clock);
++	}
++
++	/* Calibrate some delays */
++
++	host->ns_per_fifo_word = (1000000000/clock) *
++		((host->mmc->caps & MMC_CAP_4_BIT_DATA) ? 8 : 32);
++
++	if (input_clock == 50 * MHZ) {
++		if (clock > input_clock) {
++			/* Save the closest value, to make it easier
++			   to reduce in the event of error */
++			host->overclock_50 = (clock/MHZ);
++
++			if (clock != host->overclock) {
++				pr_info("%s: overclocking to %dHz\n",
++					mmc_hostname(host->mmc), clock);
++				host->overclock = clock;
++			}
++		} else if (host->overclock) {
++			host->overclock = 0;
++			if (clock == 50 * MHZ)
++				pr_warn("%s: cancelling overclock\n",
++					mmc_hostname(host->mmc));
++		}
++	} else if (input_clock == 0) {
++		/* Reset the preferred overclock when the clock is stopped.
++		 * This always happens during initialisation. */
++		host->overclock_50 = host->user_overclock_50;
++		host->overclock = 0;
++	}
++
++	/* Set the timeout to 500ms */
++	bcm2835_sdhost_write(host, clock/2, SDTOUT);
++
++	host->mmc->actual_clock = clock;
++	host->clock = input_clock;
++	host->reset_clock = 0;
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_request(struct mmc_host *mmc, struct mmc_request *mrq)
++{
++	struct bcm2835_host *host;
++	unsigned long flags;
++	u32 edm, fsm;
++
++	host = mmc_priv(mmc);
++
++	if (host->debug) {
++		struct mmc_command *cmd = mrq->cmd;
++		BUG_ON(!cmd);
++		if (cmd->data)
++			pr_info("%s: cmd %d 0x%x (flags 0x%x) - %s %d*%d\n",
++				mmc_hostname(mmc),
++				cmd->opcode, cmd->arg, cmd->flags,
++				(cmd->data->flags & MMC_DATA_READ) ?
++				"read" : "write", cmd->data->blocks,
++				cmd->data->blksz);
++		else
++			pr_info("%s: cmd %d 0x%x (flags 0x%x)\n",
++				mmc_hostname(mmc),
++				cmd->opcode, cmd->arg, cmd->flags);
++	}
++
++	/* Reset the error statuses in case this is a retry */
++	if (mrq->sbc)
++		mrq->sbc->error = 0;
++	if (mrq->cmd)
++		mrq->cmd->error = 0;
++	if (mrq->data)
++		mrq->data->error = 0;
++	if (mrq->stop)
++		mrq->stop->error = 0;
++
++	if (mrq->data && !is_power_of_2(mrq->data->blksz)) {
++		pr_err("%s: unsupported block size (%d bytes)\n",
++		       mmc_hostname(mmc), mrq->data->blksz);
++		mrq->cmd->error = -EINVAL;
++		mmc_request_done(mmc, mrq);
++		return;
++	}
++
++	if (host->use_dma && mrq->data &&
++	    (mrq->data->blocks > host->pio_limit))
++		bcm2835_sdhost_prepare_dma(host, mrq->data);
++
++	if (host->reset_clock)
++	    bcm2835_sdhost_set_clock(host, host->clock);
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	WARN_ON(host->mrq != NULL);
++	host->mrq = mrq;
++
++	edm = bcm2835_sdhost_read(host, SDEDM);
++	fsm = edm & SDEDM_FSM_MASK;
++
++	log_event("REQ<", mrq, edm);
++	if ((fsm != SDEDM_FSM_IDENTMODE) &&
++	    (fsm != SDEDM_FSM_DATAMODE)) {
++		log_event("REQ!", mrq, edm);
++		if (host->debug) {
++			pr_warn("%s: previous command (%d) not complete (EDM %x)\n",
++			       mmc_hostname(host->mmc),
++			       bcm2835_sdhost_read(host, SDCMD) & SDCMD_CMD_MASK,
++			       edm);
++			log_dump();
++			bcm2835_sdhost_dumpregs(host);
++		}
++		mrq->cmd->error = -EILSEQ;
++		tasklet_schedule(&host->finish_tasklet);
++		spin_unlock_irqrestore(&host->lock, flags);
++		return;
++	}
++
++	host->use_sbc = !!mrq->sbc &&
++		(host->mrq->data->flags & USE_CMD23_FLAGS);
++	if (host->use_sbc) {
++		if (bcm2835_sdhost_send_command(host, mrq->sbc)) {
++			if (!host->use_busy)
++				bcm2835_sdhost_finish_command(host, &flags);
++		}
++	} else if (bcm2835_sdhost_send_command(host, mrq->cmd)) {
++		if (host->data && host->dma_desc)
++			/* DMA transfer starts now, PIO starts after irq */
++			bcm2835_sdhost_start_dma(host);
++
++		if (!host->use_busy)
++			bcm2835_sdhost_finish_command(host, &flags);
++	}
++
++	log_event("CMD ", mrq->cmd->opcode,
++		   mrq->data ? (u32)mrq->data->blksz : 0);
++
++	log_event("REQ>", mrq, 0);
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
++{
++
++	struct bcm2835_host *host = mmc_priv(mmc);
++	unsigned long flags;
++
++	if (host->debug)
++		pr_info("%s: ios clock %d, pwr %d, bus_width %d, "
++			"timing %d, vdd %d, drv_type %d\n",
++			mmc_hostname(mmc),
++			ios->clock, ios->power_mode, ios->bus_width,
++			ios->timing, ios->signal_voltage, ios->drv_type);
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	log_event("IOS<", ios->clock, 0);
++
++	/* set bus width */
++	host->hcfg &= ~SDHCFG_WIDE_EXT_BUS;
++	if (ios->bus_width == MMC_BUS_WIDTH_4)
++		host->hcfg |= SDHCFG_WIDE_EXT_BUS;
++
++	host->hcfg |= SDHCFG_WIDE_INT_BUS;
++
++	/* Disable clever clock switching, to cope with fast core clocks */
++	host->hcfg |= SDHCFG_SLOW_CARD;
++
++	bcm2835_sdhost_write(host, host->hcfg, SDHCFG);
++
++	spin_unlock_irqrestore(&host->lock, flags);
++
++	if (!ios->clock || ios->clock != host->clock)
++		bcm2835_sdhost_set_clock(host, ios->clock);
++}
++
++static struct mmc_host_ops bcm2835_sdhost_ops = {
++	.request = bcm2835_sdhost_request,
++	.set_ios = bcm2835_sdhost_set_ios,
++	.hw_reset = bcm2835_sdhost_reset,
++};
++
++static void bcm2835_sdhost_cmd_wait_work(struct work_struct *work)
++{
++	struct bcm2835_host *host;
++	unsigned long flags;
++
++	host = container_of(work, struct bcm2835_host, cmd_wait_wq);
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	log_event("CWK<", host->cmd, host->mrq);
++
++	/*
++	 * If this tasklet gets rescheduled while running, it will
++	 * be run again afterwards but without any active request.
++	 */
++	if (!host->mrq) {
++		spin_unlock_irqrestore(&host->lock, flags);
++		return;
++	}
++
++	bcm2835_sdhost_finish_command(host, &flags);
++
++	log_event("CWK>", host->cmd, 0);
++
++	spin_unlock_irqrestore(&host->lock, flags);
++}
++
++static void bcm2835_sdhost_tasklet_finish(unsigned long param)
++{
++	struct bcm2835_host *host;
++	unsigned long flags;
++	struct mmc_request *mrq;
++	struct dma_chan *terminate_chan = NULL;
++
++	host = (struct bcm2835_host *)param;
++
++	spin_lock_irqsave(&host->lock, flags);
++
++	log_event("TSK<", host->mrq, 0);
++	/*
++	 * If this tasklet gets rescheduled while running, it will
++	 * be run again afterwards but without any active request.
++	 */
++	if (!host->mrq) {
++		spin_unlock_irqrestore(&host->lock, flags);
++		return;
++	}
++
++	del_timer(&host->timer);
++
++	mrq = host->mrq;
++
++	/* Drop the overclock after any data corruption, or after any
++	 * error while overclocked. Ignore errors for status commands,
++	 * as they are likely when a card is ejected. */
++	if (host->overclock) {
++		if ((mrq->cmd && mrq->cmd->error &&
++		     (mrq->cmd->opcode != MMC_SEND_STATUS)) ||
++		    (mrq->data && mrq->data->error) ||
++		    (mrq->stop && mrq->stop->error) ||
++		    (mrq->sbc && mrq->sbc->error)) {
++			host->overclock_50--;
++			pr_warn("%s: reducing overclock due to errors\n",
++				mmc_hostname(host->mmc));
++			host->reset_clock = 1;
++			mrq->cmd->error = -ETIMEDOUT;
++			mrq->cmd->retries = 1;
++		}
++	}
++
++	host->mrq = NULL;
++	host->cmd = NULL;
++	host->data = NULL;
++
++	host->dma_desc = NULL;
++	terminate_chan = host->dma_chan;
++	host->dma_chan = NULL;
++
++	spin_unlock_irqrestore(&host->lock, flags);
++
++	if (terminate_chan)
++	{
++		int err = dmaengine_terminate_all(terminate_chan);
++		if (err)
++			pr_err("%s: failed to terminate DMA (%d)\n",
++			       mmc_hostname(host->mmc), err);
++	}
++
++	/* The SDHOST block doesn't report any errors for a disconnected
++	   interface. All cards and SDIO devices should report some supported
++	   voltage range, so a zero response to SEND_OP_COND, IO_SEND_OP_COND
++	   or APP_SEND_OP_COND can be treated as an error. */
++	if (((mrq->cmd->opcode == MMC_SEND_OP_COND) ||
++	     (mrq->cmd->opcode == SD_IO_SEND_OP_COND) ||
++	     (mrq->cmd->opcode == SD_APP_OP_COND)) &&
++	    (mrq->cmd->error == 0) &&
++	    (mrq->cmd->resp[0] == 0)) {
++		mrq->cmd->error = -ETIMEDOUT;
++		if (host->debug)
++			pr_info("%s: faking timeout due to zero OCR\n",
++				mmc_hostname(host->mmc));
++	}
++
++	mmc_request_done(host->mmc, mrq);
++	log_event("TSK>", mrq, 0);
++}
++
++int bcm2835_sdhost_add_host(struct bcm2835_host *host)
++{
++	struct mmc_host *mmc;
++	struct dma_slave_config cfg;
++	char pio_limit_string[20];
++	int ret;
++
++	mmc = host->mmc;
++
++	if (!mmc->f_max || mmc->f_max > host->max_clk)
++		mmc->f_max = host->max_clk;
++	mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV;
++
++	mmc->max_busy_timeout =  (~(unsigned int)0)/(mmc->f_max/1000);
++
++	pr_debug("f_max %d, f_min %d, max_busy_timeout %d\n",
++		 mmc->f_max, mmc->f_min, mmc->max_busy_timeout);
++
++	/* host controller capabilities */
++	mmc->caps |=
++		MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED |
++		MMC_CAP_NEEDS_POLL | MMC_CAP_HW_RESET |
++		((ALLOW_CMD23_READ|ALLOW_CMD23_WRITE) * MMC_CAP_CMD23);
++
++	spin_lock_init(&host->lock);
++
++	if (host->allow_dma) {
++		if (IS_ERR_OR_NULL(host->dma_chan_rxtx)) {
++			pr_err("%s: unable to initialise DMA channel. "
++			       "Falling back to PIO\n",
++			       mmc_hostname(mmc));
++			host->use_dma = false;
++		} else {
++			cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++			cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++			cfg.slave_id = 13;		/* DREQ channel */
++
++			/* Validate the slave configurations */
++
++			cfg.direction = DMA_MEM_TO_DEV;
++			cfg.src_addr = 0;
++			cfg.dst_addr = host->bus_addr + SDDATA;
++
++			ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg);
++
++			if (ret == 0) {
++				host->dma_cfg_tx = cfg;
++
++				cfg.direction = DMA_DEV_TO_MEM;
++				cfg.src_addr = host->bus_addr + SDDATA;
++				cfg.dst_addr = 0;
++
++				ret = dmaengine_slave_config(host->dma_chan_rxtx, &cfg);
++			}
++
++			if (ret == 0) {
++				host->dma_cfg_rx = cfg;
++
++				host->use_dma = true;
++			} else {
++				pr_err("%s: unable to configure DMA channel. "
++				       "Falling back to PIO\n",
++				       mmc_hostname(mmc));
++				dma_release_channel(host->dma_chan_rxtx);
++				host->dma_chan_rxtx = NULL;
++				host->use_dma = false;
++			}
++		}
++	} else {
++		host->use_dma = false;
++	}
++
++	mmc->max_segs = 128;
++	mmc->max_req_size = 524288;
++	mmc->max_seg_size = mmc->max_req_size;
++	mmc->max_blk_size = 512;
++	mmc->max_blk_count =  65535;
++
++	/* report supported voltage ranges */
++	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
++
++	tasklet_init(&host->finish_tasklet,
++		bcm2835_sdhost_tasklet_finish, (unsigned long)host);
++
++	INIT_WORK(&host->cmd_wait_wq, bcm2835_sdhost_cmd_wait_work);
++
++	timer_setup(&host->timer, bcm2835_sdhost_timeout, 0);
++
++	bcm2835_sdhost_init(host, 0);
++
++	ret = request_irq(host->irq, bcm2835_sdhost_irq, 0 /*IRQF_SHARED*/,
++				  mmc_hostname(mmc), host);
++	if (ret) {
++		pr_err("%s: failed to request IRQ %d: %d\n",
++		       mmc_hostname(mmc), host->irq, ret);
++		goto untasklet;
++	}
++
++	mmc_add_host(mmc);
++
++	pio_limit_string[0] = '\0';
++	if (host->use_dma && (host->pio_limit > 0))
++		sprintf(pio_limit_string, " (>%d)", host->pio_limit);
++	pr_info("%s: %s loaded - DMA %s%s\n",
++		mmc_hostname(mmc), DRIVER_NAME,
++		host->use_dma ? "enabled" : "disabled",
++		pio_limit_string);
++
++	return 0;
++
++untasklet:
++	tasklet_kill(&host->finish_tasklet);
++
++	return ret;
++}
++
++static int bcm2835_sdhost_probe(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	struct device_node *node = dev->of_node;
++	struct clk *clk;
++	struct resource *iomem;
++	struct bcm2835_host *host;
++	struct mmc_host *mmc;
++	const __be32 *addr;
++	u32 msg[3];
++	int na;
++	int ret;
++
++	pr_debug("bcm2835_sdhost_probe\n");
++	mmc = mmc_alloc_host(sizeof(*host), dev);
++	if (!mmc)
++		return -ENOMEM;
++
++	mmc->ops = &bcm2835_sdhost_ops;
++	host = mmc_priv(mmc);
++	host->mmc = mmc;
++	host->pio_timeout = msecs_to_jiffies(500);
++	host->pio_limit = 1;
++	host->max_delay = 1; /* Warn if over 1ms */
++	host->allow_dma = 1;
++	spin_lock_init(&host->lock);
++
++	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	host->ioaddr = devm_ioremap_resource(dev, iomem);
++	if (IS_ERR(host->ioaddr)) {
++		ret = PTR_ERR(host->ioaddr);
++		goto err;
++	}
++
++	na = of_n_addr_cells(node);
++	addr = of_get_address(node, 0, NULL, NULL);
++	if (!addr) {
++		dev_err(dev, "could not get DMA-register address\n");
++		return -ENODEV;
++	}
++	host->bus_addr = (phys_addr_t)of_read_number(addr, na);
++	pr_debug(" - ioaddr %lx, iomem->start %lx, bus_addr %lx\n",
++		 (unsigned long)host->ioaddr,
++		 (unsigned long)iomem->start,
++		 (unsigned long)host->bus_addr);
++
++	if (node) {
++		/* Read any custom properties */
++		of_property_read_u32(node,
++				     "brcm,delay-after-stop",
++				     &host->delay_after_stop);
++		of_property_read_u32(node,
++				     "brcm,overclock-50",
++				     &host->user_overclock_50);
++		of_property_read_u32(node,
++				     "brcm,pio-limit",
++				     &host->pio_limit);
++		host->allow_dma =
++			!of_property_read_bool(node, "brcm,force-pio");
++		host->debug = of_property_read_bool(node, "brcm,debug");
++	}
++
++	host->dma_chan = NULL;
++	host->dma_desc = NULL;
++
++	/* Formally recognise the other way of disabling DMA */
++	if (host->pio_limit == 0x7fffffff)
++		host->allow_dma = false;
++
++	if (host->allow_dma) {
++		if (node) {
++			host->dma_chan_rxtx =
++				dma_request_slave_channel(dev, "rx-tx");
++			if (!host->dma_chan_rxtx)
++				host->dma_chan_rxtx =
++					dma_request_slave_channel(dev, "tx");
++			if (!host->dma_chan_rxtx)
++				host->dma_chan_rxtx =
++					dma_request_slave_channel(dev, "rx");
++		} else {
++			dma_cap_mask_t mask;
++
++			dma_cap_zero(mask);
++			/* we don't care about the channel, any would work */
++			dma_cap_set(DMA_SLAVE, mask);
++			host->dma_chan_rxtx =
++				dma_request_channel(mask, NULL, NULL);
++		}
++	}
++
++	clk = devm_clk_get(dev, NULL);
++	if (IS_ERR(clk)) {
++		ret = PTR_ERR(clk);
++		if (ret == -EPROBE_DEFER)
++			dev_info(dev, "could not get clk, deferring probe\n");
++		else
++			dev_err(dev, "could not get clk\n");
++		goto err;
++	}
++
++	host->max_clk = clk_get_rate(clk);
++
++	host->irq = platform_get_irq(pdev, 0);
++	if (host->irq <= 0) {
++		dev_err(dev, "get IRQ failed\n");
++		ret = -EINVAL;
++		goto err;
++	}
++
++	pr_debug(" - max_clk %lx, irq %d\n",
++		 (unsigned long)host->max_clk,
++		 (int)host->irq);
++
++	log_init(dev, iomem->start - host->bus_addr);
++
++	if (node)
++		mmc_of_parse(mmc);
++	else
++		mmc->caps |= MMC_CAP_4_BIT_DATA;
++
++	msg[0] = 0;
++	msg[1] = ~0;
++	msg[2] = ~0;
++
++	rpi_firmware_property(rpi_firmware_get(NULL),
++			      RPI_FIRMWARE_SET_SDHOST_CLOCK,
++			      &msg, sizeof(msg));
++
++	host->firmware_sets_cdiv = (msg[1] != ~0);
++
++	ret = bcm2835_sdhost_add_host(host);
++	if (ret)
++		goto err;
++
++	platform_set_drvdata(pdev, host);
++
++	pr_debug("bcm2835_sdhost_probe -> OK\n");
++
++	return 0;
++
++err:
++	pr_debug("bcm2835_sdhost_probe -> err %d\n", ret);
++	if (host->dma_chan_rxtx)
++		dma_release_channel(host->dma_chan_rxtx);
++	mmc_free_host(mmc);
++
++	return ret;
++}
++
++static int bcm2835_sdhost_remove(struct platform_device *pdev)
++{
++	struct bcm2835_host *host = platform_get_drvdata(pdev);
++
++	pr_debug("bcm2835_sdhost_remove\n");
++
++	mmc_remove_host(host->mmc);
++
++	bcm2835_sdhost_set_power(host, false);
++
++	free_irq(host->irq, host);
++
++	del_timer_sync(&host->timer);
++
++	tasklet_kill(&host->finish_tasklet);
++	if (host->dma_chan_rxtx)
++		dma_release_channel(host->dma_chan_rxtx);
++	mmc_free_host(host->mmc);
++	platform_set_drvdata(pdev, NULL);
++
++	pr_debug("bcm2835_sdhost_remove - OK\n");
++	return 0;
++}
++
++static const struct of_device_id bcm2835_sdhost_match[] = {
++	{ .compatible = "brcm,bcm2835-sdhost" },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, bcm2835_sdhost_match);
++
++static struct platform_driver bcm2835_sdhost_driver = {
++	.probe      = bcm2835_sdhost_probe,
++	.remove     = bcm2835_sdhost_remove,
++	.driver     = {
++		.name		= DRIVER_NAME,
++		.owner		= THIS_MODULE,
++		.of_match_table	= bcm2835_sdhost_match,
++	},
++};
++module_platform_driver(bcm2835_sdhost_driver);
++
++MODULE_ALIAS("platform:sdhost-bcm2835");
++MODULE_DESCRIPTION("BCM2835 SDHost driver");
++MODULE_LICENSE("GPL v2");
++MODULE_AUTHOR("Phil Elwell");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0048-vc_mem-Add-vc_mem-driver-for-querying-firmware-memor.patch b/target/linux/bcm27xx/patches-5.10/950-0048-vc_mem-Add-vc_mem-driver-for-querying-firmware-memor.patch
new file mode 100644
index 0000000000..902959a900
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0048-vc_mem-Add-vc_mem-driver-for-querying-firmware-memor.patch
@@ -0,0 +1,488 @@
+From 156d50d2fb05f132d53927cbf9fad3c9c37e8937 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Fri, 28 Oct 2016 15:36:43 +0100
+Subject: [PATCH] vc_mem: Add vc_mem driver for querying firmware
+ memory addresses
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+BCM270x: Move vc_mem
+
+Make the vc_mem module available for ARCH_BCM2835 by moving it.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+char: vc_mem: Fix up compat ioctls for 64bit kernel
+
+compat_ioctl wasn't defined, so 32bit user/64bit kernel
+always failed.
+VC_MEM_IOC_MEM_PHYS_ADDR was defined with parameter size
+unsigned long, so the ioctl cmd changes between sizes.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+char: vc_mem: Fix all coding style issues.
+
+Cleans up all checkpatch errors in vc_mem.c and vc_mem.h
+No functional change to the code.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/char/broadcom/Kconfig   |  18 ++
+ drivers/char/broadcom/Makefile  |   1 +
+ drivers/char/broadcom/vc_mem.c  | 375 ++++++++++++++++++++++++++++++++
+ include/linux/broadcom/vc_mem.h |  39 ++++
+ 4 files changed, 433 insertions(+)
+ create mode 100644 drivers/char/broadcom/Kconfig
+ create mode 100644 drivers/char/broadcom/Makefile
+ create mode 100644 drivers/char/broadcom/vc_mem.c
+ create mode 100644 include/linux/broadcom/vc_mem.h
+
+--- /dev/null
++++ b/drivers/char/broadcom/Kconfig
+@@ -0,0 +1,18 @@
++#
++# Broadcom char driver config
++#
++
++menuconfig BRCM_CHAR_DRIVERS
++	bool "Broadcom Char Drivers"
++	help
++	  Broadcom's char drivers
++
++if BRCM_CHAR_DRIVERS
++
++config BCM2708_VCMEM
++	bool "Videocore Memory"
++        default y
++        help
++          Helper for videocore memory access and total size allocation.
++
++endif
+--- /dev/null
++++ b/drivers/char/broadcom/Makefile
+@@ -0,0 +1 @@
++obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
+--- /dev/null
++++ b/drivers/char/broadcom/vc_mem.c
+@@ -0,0 +1,375 @@
++/*
++ * Copyright 2010 - 2011 Broadcom Corporation.  All rights reserved.
++ *
++ * Unless you and Broadcom execute a separate written software license
++ * agreement governing use of this software, this software is licensed to you
++ * under the terms of the GNU General Public License version 2, available at
++ * http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
++ *
++ * Notwithstanding the above, under no circumstances may you combine this
++ * software in any way with any other Broadcom software provided under a
++ * license other than the GPL, without Broadcom's express prior written
++ * consent.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/fs.h>
++#include <linux/device.h>
++#include <linux/cdev.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/debugfs.h>
++#include <linux/uaccess.h>
++#include <linux/dma-mapping.h>
++#include <linux/broadcom/vc_mem.h>
++
++#define DRIVER_NAME  "vc-mem"
++
++/* Device (/dev) related variables */
++static dev_t vc_mem_devnum;
++static struct class *vc_mem_class;
++static struct cdev vc_mem_cdev;
++static int vc_mem_inited;
++
++#ifdef CONFIG_DEBUG_FS
++static struct dentry *vc_mem_debugfs_entry;
++#endif
++
++/*
++ * Videocore memory addresses and size
++ *
++ * Drivers that wish to know the videocore memory addresses and sizes should
++ * use these variables instead of the MM_IO_BASE and MM_ADDR_IO defines in
++ * headers. This allows the other drivers to not be tied down to a a certain
++ * address/size at compile time.
++ *
++ * In the future, the goal is to have the videocore memory virtual address and
++ * size be calculated at boot time rather than at compile time. The decision of
++ * where the videocore memory resides and its size would be in the hands of the
++ * bootloader (and/or kernel). When that happens, the values of these variables
++ * would be calculated and assigned in the init function.
++ */
++/* In the 2835 VC in mapped above ARM, but ARM has full access to VC space */
++unsigned long mm_vc_mem_phys_addr;
++EXPORT_SYMBOL(mm_vc_mem_phys_addr);
++unsigned int mm_vc_mem_size;
++EXPORT_SYMBOL(mm_vc_mem_size);
++unsigned int mm_vc_mem_base;
++EXPORT_SYMBOL(mm_vc_mem_base);
++
++static uint phys_addr;
++static uint mem_size;
++static uint mem_base;
++
++static int
++vc_mem_open(struct inode *inode, struct file *file)
++{
++	(void)inode;
++
++	pr_debug("%s: called file = 0x%p\n", __func__, file);
++
++	return 0;
++}
++
++static int
++vc_mem_release(struct inode *inode, struct file *file)
++{
++	(void)inode;
++
++	pr_debug("%s: called file = 0x%p\n", __func__, file);
++
++	return 0;
++}
++
++static void
++vc_mem_get_size(void)
++{
++}
++
++static void
++vc_mem_get_base(void)
++{
++}
++
++int
++vc_mem_get_current_size(void)
++{
++	return mm_vc_mem_size;
++}
++EXPORT_SYMBOL_GPL(vc_mem_get_current_size);
++
++static long
++vc_mem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
++{
++	int rc = 0;
++
++	(void) cmd;
++	(void) arg;
++
++	pr_debug("%s: called file = 0x%p, cmd %08x\n", __func__, file, cmd);
++
++	switch (cmd) {
++	case VC_MEM_IOC_MEM_PHYS_ADDR:
++		{
++			pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR=0x%p\n",
++				__func__, (void *)mm_vc_mem_phys_addr);
++
++			if (copy_to_user((void *)arg, &mm_vc_mem_phys_addr,
++					 sizeof(mm_vc_mem_phys_addr))) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_SIZE:
++		{
++			/* Get the videocore memory size first */
++			vc_mem_get_size();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_SIZE=%x\n", __func__,
++				 mm_vc_mem_size);
++
++			if (copy_to_user((void *)arg, &mm_vc_mem_size,
++					 sizeof(mm_vc_mem_size))) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_BASE:
++		{
++			/* Get the videocore memory base */
++			vc_mem_get_base();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_BASE=%x\n", __func__,
++				 mm_vc_mem_base);
++
++			if (copy_to_user((void *)arg, &mm_vc_mem_base,
++					 sizeof(mm_vc_mem_base))) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	case VC_MEM_IOC_MEM_LOAD:
++		{
++			/* Get the videocore memory base */
++			vc_mem_get_base();
++
++			pr_debug("%s: VC_MEM_IOC_MEM_LOAD=%x\n", __func__,
++				mm_vc_mem_base);
++
++			if (copy_to_user((void *)arg, &mm_vc_mem_base,
++					 sizeof(mm_vc_mem_base))) {
++				rc = -EFAULT;
++			}
++			break;
++		}
++	default:
++		{
++			return -ENOTTY;
++		}
++	}
++	pr_debug("%s: file = 0x%p returning %d\n", __func__, file, rc);
++
++	return rc;
++}
++
++#ifdef CONFIG_COMPAT
++static long
++vc_mem_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
++{
++	int rc = 0;
++
++	switch (cmd) {
++	case VC_MEM_IOC_MEM_PHYS_ADDR32:
++		pr_debug("%s: VC_MEM_IOC_MEM_PHYS_ADDR32=0x%p\n",
++			 __func__, (void *)mm_vc_mem_phys_addr);
++
++		/* This isn't correct, but will cover us for now as
++		 * VideoCore is 32bit only.
++		 */
++		if (copy_to_user((void *)arg, &mm_vc_mem_phys_addr,
++				 sizeof(compat_ulong_t)))
++			rc = -EFAULT;
++
++		break;
++
++	default:
++		rc = vc_mem_ioctl(file, cmd, arg);
++		break;
++	}
++
++	return rc;
++}
++#endif
++
++static int
++vc_mem_mmap(struct file *filp, struct vm_area_struct *vma)
++{
++	int rc = 0;
++	unsigned long length = vma->vm_end - vma->vm_start;
++	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
++
++	pr_debug("%s: vm_start = 0x%08lx vm_end = 0x%08lx vm_pgoff = 0x%08lx\n",
++		 __func__, (long)vma->vm_start, (long)vma->vm_end,
++		 (long)vma->vm_pgoff);
++
++	if (offset + length > mm_vc_mem_size) {
++		pr_err("%s: length %ld is too big\n", __func__, length);
++		return -EINVAL;
++	}
++	/* Do not cache the memory map */
++	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
++
++	rc = remap_pfn_range(vma, vma->vm_start,
++			     (mm_vc_mem_phys_addr >> PAGE_SHIFT) +
++			     vma->vm_pgoff, length, vma->vm_page_prot);
++	if (rc)
++		pr_err("%s: remap_pfn_range failed (rc=%d)\n", __func__, rc);
++
++	return rc;
++}
++
++/* File Operations for the driver. */
++static const struct file_operations vc_mem_fops = {
++	.owner = THIS_MODULE,
++	.open = vc_mem_open,
++	.release = vc_mem_release,
++	.unlocked_ioctl = vc_mem_ioctl,
++#ifdef CONFIG_COMPAT
++	.compat_ioctl = vc_mem_compat_ioctl,
++#endif
++	.mmap = vc_mem_mmap,
++};
++
++#ifdef CONFIG_DEBUG_FS
++static void vc_mem_debugfs_deinit(void)
++{
++	debugfs_remove_recursive(vc_mem_debugfs_entry);
++	vc_mem_debugfs_entry = NULL;
++}
++
++
++static int vc_mem_debugfs_init(
++	struct device *dev)
++{
++	vc_mem_debugfs_entry = debugfs_create_dir(DRIVER_NAME, NULL);
++	if (!vc_mem_debugfs_entry) {
++		dev_warn(dev, "could not create debugfs entry\n");
++		return -EFAULT;
++	}
++
++	debugfs_create_x32("vc_mem_phys_addr",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_phys_addr);
++	debugfs_create_x32("vc_mem_size",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_size);
++	debugfs_create_x32("vc_mem_base",
++				0444,
++				vc_mem_debugfs_entry,
++				(u32 *)&mm_vc_mem_base);
++
++	return 0;
++}
++
++#endif /* CONFIG_DEBUG_FS */
++
++/* Module load/unload functions */
++
++static int __init
++vc_mem_init(void)
++{
++	int rc = -EFAULT;
++	struct device *dev;
++
++	pr_debug("%s: called\n", __func__);
++
++	mm_vc_mem_phys_addr = phys_addr;
++	mm_vc_mem_size = mem_size;
++	mm_vc_mem_base = mem_base;
++
++	vc_mem_get_size();
++
++	pr_info("vc-mem: phys_addr:0x%08lx mem_base=0x%08x mem_size:0x%08x(%u MiB)\n",
++		mm_vc_mem_phys_addr, mm_vc_mem_base, mm_vc_mem_size,
++		mm_vc_mem_size / (1024 * 1024));
++
++	rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME);
++	if (rc < 0) {
++		pr_err("%s: alloc_chrdev_region failed (rc=%d)\n",
++		       __func__, rc);
++		goto out_err;
++	}
++
++	cdev_init(&vc_mem_cdev, &vc_mem_fops);
++	rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1);
++	if (rc) {
++		pr_err("%s: cdev_add failed (rc=%d)\n", __func__, rc);
++		goto out_unregister;
++	}
++
++	vc_mem_class = class_create(THIS_MODULE, DRIVER_NAME);
++	if (IS_ERR(vc_mem_class)) {
++		rc = PTR_ERR(vc_mem_class);
++		pr_err("%s: class_create failed (rc=%d)\n", __func__, rc);
++		goto out_cdev_del;
++	}
++
++	dev = device_create(vc_mem_class, NULL, vc_mem_devnum, NULL,
++			    DRIVER_NAME);
++	if (IS_ERR(dev)) {
++		rc = PTR_ERR(dev);
++		pr_err("%s: device_create failed (rc=%d)\n", __func__, rc);
++		goto out_class_destroy;
++	}
++
++#ifdef CONFIG_DEBUG_FS
++	/* don't fail if the debug entries cannot be created */
++	vc_mem_debugfs_init(dev);
++#endif
++
++	vc_mem_inited = 1;
++	return 0;
++
++	device_destroy(vc_mem_class, vc_mem_devnum);
++
++out_class_destroy:
++	class_destroy(vc_mem_class);
++	vc_mem_class = NULL;
++
++out_cdev_del:
++	cdev_del(&vc_mem_cdev);
++
++out_unregister:
++	unregister_chrdev_region(vc_mem_devnum, 1);
++
++out_err:
++	return -1;
++}
++
++static void __exit
++vc_mem_exit(void)
++{
++	pr_debug("%s: called\n", __func__);
++
++	if (vc_mem_inited) {
++#if CONFIG_DEBUG_FS
++		vc_mem_debugfs_deinit();
++#endif
++		device_destroy(vc_mem_class, vc_mem_devnum);
++		class_destroy(vc_mem_class);
++		cdev_del(&vc_mem_cdev);
++		unregister_chrdev_region(vc_mem_devnum, 1);
++	}
++}
++
++module_init(vc_mem_init);
++module_exit(vc_mem_exit);
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Broadcom Corporation");
++
++module_param(phys_addr, uint, 0644);
++module_param(mem_size, uint, 0644);
++module_param(mem_base, uint, 0644);
+--- /dev/null
++++ b/include/linux/broadcom/vc_mem.h
+@@ -0,0 +1,39 @@
++/*
++ * Copyright 2010 - 2011 Broadcom Corporation.  All rights reserved.
++ *
++ * Unless you and Broadcom execute a separate written software license
++ * agreement governing use of this software, this software is licensed to you
++ * under the terms of the GNU General Public License version 2, available at
++ * http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
++ *
++ * Notwithstanding the above, under no circumstances may you combine this
++ * software in any way with any other Broadcom software provided under a
++ * license other than the GPL, without Broadcom's express prior written
++ * consent.
++ */
++
++#ifndef _VC_MEM_H
++#define _VC_MEM_H
++
++#include <linux/ioctl.h>
++
++#define VC_MEM_IOC_MAGIC  'v'
++
++#define VC_MEM_IOC_MEM_PHYS_ADDR    _IOR(VC_MEM_IOC_MAGIC, 0, unsigned long)
++#define VC_MEM_IOC_MEM_SIZE         _IOR(VC_MEM_IOC_MAGIC, 1, unsigned int)
++#define VC_MEM_IOC_MEM_BASE         _IOR(VC_MEM_IOC_MAGIC, 2, unsigned int)
++#define VC_MEM_IOC_MEM_LOAD         _IOR(VC_MEM_IOC_MAGIC, 3, unsigned int)
++
++#ifdef __KERNEL__
++#define VC_MEM_TO_ARM_ADDR_MASK 0x3FFFFFFF
++
++extern unsigned long mm_vc_mem_phys_addr;
++extern unsigned int  mm_vc_mem_size;
++extern int vc_mem_get_current_size(void);
++#endif
++
++#ifdef CONFIG_COMPAT
++#define VC_MEM_IOC_MEM_PHYS_ADDR32  _IOR(VC_MEM_IOC_MAGIC, 0, compat_ulong_t)
++#endif
++
++#endif  /* _VC_MEM_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0049-Add-dev-gpiomem-device-for-rootless-user-GPIO-access.patch b/target/linux/bcm27xx/patches-5.10/950-0049-Add-dev-gpiomem-device-for-rootless-user-GPIO-access.patch
new file mode 100644
index 0000000000..4b4a7df97b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0049-Add-dev-gpiomem-device-for-rootless-user-GPIO-access.patch
@@ -0,0 +1,299 @@
+From 09897ac552d99d483131bcf107866ac2dc51694f Mon Sep 17 00:00:00 2001
+From: Luke Wren <luke@raspberrypi.org>
+Date: Fri, 21 Aug 2015 23:14:48 +0100
+Subject: [PATCH] Add /dev/gpiomem device for rootless user GPIO access
+
+Signed-off-by: Luke Wren <luke@raspberrypi.org>
+
+bcm2835-gpiomem: Fix for ARCH_BCM2835 builds
+
+Build on ARCH_BCM2835, and fail to probe if no IO resource.
+
+See: https://github.com/raspberrypi/linux/issues/1154
+---
+ drivers/char/broadcom/Kconfig           |   8 +
+ drivers/char/broadcom/Makefile          |   1 +
+ drivers/char/broadcom/bcm2835-gpiomem.c | 258 ++++++++++++++++++++++++
+ 3 files changed, 267 insertions(+)
+ create mode 100644 drivers/char/broadcom/bcm2835-gpiomem.c
+
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -16,3 +16,11 @@ config BCM2708_VCMEM
+           Helper for videocore memory access and total size allocation.
+ 
+ endif
++
++config BCM2835_DEVGPIOMEM
++	tristate "/dev/gpiomem rootless GPIO access via mmap() on the BCM2835"
++	default m
++	help
++		Provides users with root-free access to the GPIO registers
++		on the 2835. Calling mmap(/dev/gpiomem) will map the GPIO
++		register page to the user's pointer.
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -1 +1,2 @@
+ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
++obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
+--- /dev/null
++++ b/drivers/char/broadcom/bcm2835-gpiomem.c
+@@ -0,0 +1,258 @@
++/**
++ * GPIO memory device driver
++ *
++ * Creates a chardev /dev/gpiomem which will provide user access to
++ * the BCM2835's GPIO registers when it is mmap()'d.
++ * No longer need root for user GPIO access, but without relaxing permissions
++ * on /dev/mem.
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/cdev.h>
++#include <linux/pagemap.h>
++#include <linux/io.h>
++
++#define DEVICE_NAME "bcm2835-gpiomem"
++#define DRIVER_NAME "gpiomem-bcm2835"
++#define DEVICE_MINOR 0
++
++struct bcm2835_gpiomem_instance {
++	unsigned long gpio_regs_phys;
++	struct device *dev;
++};
++
++static struct cdev bcm2835_gpiomem_cdev;
++static dev_t bcm2835_gpiomem_devid;
++static struct class *bcm2835_gpiomem_class;
++static struct device *bcm2835_gpiomem_dev;
++static struct bcm2835_gpiomem_instance *inst;
++
++
++/****************************************************************************
++*
++*   GPIO mem chardev file ops
++*
++***************************************************************************/
++
++static int bcm2835_gpiomem_open(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev, "Unknown minor device: %d", dev);
++		ret = -ENXIO;
++	}
++	return ret;
++}
++
++static int bcm2835_gpiomem_release(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev, "Unknown minor device %d", dev);
++		ret = -ENXIO;
++	}
++	return ret;
++}
++
++static const struct vm_operations_struct bcm2835_gpiomem_vm_ops = {
++#ifdef CONFIG_HAVE_IOREMAP_PROT
++	.access = generic_access_phys
++#endif
++};
++
++static int bcm2835_gpiomem_mmap(struct file *file, struct vm_area_struct *vma)
++{
++	/* Ignore what the user says - they're getting the GPIO regs
++	   whether they like it or not! */
++	unsigned long gpio_page = inst->gpio_regs_phys >> PAGE_SHIFT;
++
++	vma->vm_page_prot = phys_mem_access_prot(file, gpio_page,
++						 PAGE_SIZE,
++						 vma->vm_page_prot);
++	vma->vm_ops = &bcm2835_gpiomem_vm_ops;
++	if (remap_pfn_range(vma, vma->vm_start,
++			gpio_page,
++			PAGE_SIZE,
++			vma->vm_page_prot)) {
++		return -EAGAIN;
++	}
++	return 0;
++}
++
++static const struct file_operations
++bcm2835_gpiomem_fops = {
++	.owner = THIS_MODULE,
++	.open = bcm2835_gpiomem_open,
++	.release = bcm2835_gpiomem_release,
++	.mmap = bcm2835_gpiomem_mmap,
++};
++
++
++ /****************************************************************************
++*
++*   Probe and remove functions
++*
++***************************************************************************/
++
++
++static int bcm2835_gpiomem_probe(struct platform_device *pdev)
++{
++	int err;
++	void *ptr_err;
++	struct device *dev = &pdev->dev;
++	struct resource *ioresource;
++
++	/* Allocate buffers and instance data */
++
++	inst = kzalloc(sizeof(struct bcm2835_gpiomem_instance), GFP_KERNEL);
++
++	if (!inst) {
++		err = -ENOMEM;
++		goto failed_inst_alloc;
++	}
++
++	inst->dev = dev;
++
++	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (ioresource) {
++		inst->gpio_regs_phys = ioresource->start;
++	} else {
++		dev_err(inst->dev, "failed to get IO resource");
++		err = -ENOENT;
++		goto failed_get_resource;
++	}
++
++	/* Create character device entries */
++
++	err = alloc_chrdev_region(&bcm2835_gpiomem_devid,
++				  DEVICE_MINOR, 1, DEVICE_NAME);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to allocate device number");
++		goto failed_alloc_chrdev;
++	}
++	cdev_init(&bcm2835_gpiomem_cdev, &bcm2835_gpiomem_fops);
++	bcm2835_gpiomem_cdev.owner = THIS_MODULE;
++	err = cdev_add(&bcm2835_gpiomem_cdev, bcm2835_gpiomem_devid, 1);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to register device");
++		goto failed_cdev_add;
++	}
++
++	/* Create sysfs entries */
++
++	bcm2835_gpiomem_class = class_create(THIS_MODULE, DEVICE_NAME);
++	ptr_err = bcm2835_gpiomem_class;
++	if (IS_ERR(ptr_err))
++		goto failed_class_create;
++
++	bcm2835_gpiomem_dev = device_create(bcm2835_gpiomem_class, NULL,
++					bcm2835_gpiomem_devid, NULL,
++					"gpiomem");
++	ptr_err = bcm2835_gpiomem_dev;
++	if (IS_ERR(ptr_err))
++		goto failed_device_create;
++
++	dev_info(inst->dev, "Initialised: Registers at 0x%08lx",
++		inst->gpio_regs_phys);
++
++	return 0;
++
++failed_device_create:
++	class_destroy(bcm2835_gpiomem_class);
++failed_class_create:
++	cdev_del(&bcm2835_gpiomem_cdev);
++	err = PTR_ERR(ptr_err);
++failed_cdev_add:
++	unregister_chrdev_region(bcm2835_gpiomem_devid, 1);
++failed_alloc_chrdev:
++failed_get_resource:
++	kfree(inst);
++failed_inst_alloc:
++	dev_err(inst->dev, "could not load bcm2835_gpiomem");
++	return err;
++}
++
++static int bcm2835_gpiomem_remove(struct platform_device *pdev)
++{
++	struct device *dev = inst->dev;
++
++	kfree(inst);
++	device_destroy(bcm2835_gpiomem_class, bcm2835_gpiomem_devid);
++	class_destroy(bcm2835_gpiomem_class);
++	cdev_del(&bcm2835_gpiomem_cdev);
++	unregister_chrdev_region(bcm2835_gpiomem_devid, 1);
++
++	dev_info(dev, "GPIO mem driver removed - OK");
++	return 0;
++}
++
++ /****************************************************************************
++*
++*   Register the driver with device tree
++*
++***************************************************************************/
++
++static const struct of_device_id bcm2835_gpiomem_of_match[] = {
++	{.compatible = "brcm,bcm2835-gpiomem",},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, bcm2835_gpiomem_of_match);
++
++static struct platform_driver bcm2835_gpiomem_driver = {
++	.probe = bcm2835_gpiomem_probe,
++	.remove = bcm2835_gpiomem_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = bcm2835_gpiomem_of_match,
++		   },
++};
++
++module_platform_driver(bcm2835_gpiomem_driver);
++
++MODULE_ALIAS("platform:gpiomem-bcm2835");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("gpiomem driver for accessing GPIO from userspace");
++MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0050-Add-SMI-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0050-Add-SMI-driver.patch
new file mode 100644
index 0000000000..f1c3509f84
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0050-Add-SMI-driver.patch
@@ -0,0 +1,1910 @@
+From 5d41827cef0a52089040b6edd311e5c0fdae1fc9 Mon Sep 17 00:00:00 2001
+From: Luke Wren <wren6991@gmail.com>
+Date: Sat, 5 Sep 2015 01:14:45 +0100
+Subject: [PATCH] Add SMI driver
+
+Signed-off-by: Luke Wren <wren6991@gmail.com>
+
+MISC: bcm2835: smi: use clock manager and fix reload issues
+
+Use clock manager instead of self-made clockmanager.
+
+Also fix some error paths that showd up during development
+(especially missing release of dma resources on rmmod)
+
+Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
+
+bcm2835_smi: re-add dereference to fix DMA transfers
+---
+ .../bindings/misc/brcm,bcm2835-smi-dev.txt    |  17 +
+ .../bindings/misc/brcm,bcm2835-smi.txt        |  48 +
+ drivers/char/broadcom/Kconfig                 |   9 +
+ drivers/char/broadcom/Makefile                |   1 +
+ drivers/char/broadcom/bcm2835_smi_dev.c       | 402 ++++++++
+ drivers/misc/Kconfig                          |   8 +
+ drivers/misc/Makefile                         |   1 +
+ drivers/misc/bcm2835_smi.c                    | 955 ++++++++++++++++++
+ include/linux/broadcom/bcm2835_smi.h          | 391 +++++++
+ 9 files changed, 1832 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt
+ create mode 100644 Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt
+ create mode 100644 drivers/char/broadcom/bcm2835_smi_dev.c
+ create mode 100644 drivers/misc/bcm2835_smi.c
+ create mode 100644 include/linux/broadcom/bcm2835_smi.h
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi-dev.txt
+@@ -0,0 +1,17 @@
++* Broadcom BCM2835 SMI character device driver.
++
++SMI or secondary memory interface is a peripheral specific to certain Broadcom
++SOCs, and is helpful for talking to things like parallel-interface displays
++and NAND flashes (in fact, most things with a parallel register interface).
++
++This driver adds a character device which provides a user-space interface to
++an instance of the SMI driver.
++
++Required properties:
++- compatible: "brcm,bcm2835-smi-dev"
++- smi_handle: a phandle to the smi node.
++
++Optional properties:
++- None.
++
++
+--- /dev/null
++++ b/Documentation/devicetree/bindings/misc/brcm,bcm2835-smi.txt
+@@ -0,0 +1,48 @@
++* Broadcom BCM2835 SMI driver.
++
++SMI or secondary memory interface is a peripheral specific to certain Broadcom
++SOCs, and is helpful for talking to things like parallel-interface displays
++and NAND flashes (in fact, most things with a parallel register interface).
++
++Required properties:
++- compatible: "brcm,bcm2835-smi"
++- reg: Should contain location and length of SMI registers and SMI clkman regs
++- interrupts: *the* SMI interrupt.
++- pinctrl-names: should be "default".
++- pinctrl-0: the phandle of the gpio pin node.
++- brcm,smi-clock-source: the clock source for clkman
++- brcm,smi-clock-divisor: the integer clock divisor for clkman
++- dmas: the dma controller phandle and the DREQ number (4 on a 2835)
++- dma-names: the name used by the driver to request its channel.
++  Should be "rx-tx".
++
++Optional properties:
++- None.
++
++Examples:
++
++8 data pin configuration:
++
++smi: smi@7e600000 {
++	compatible = "brcm,bcm2835-smi";
++	reg = <0x7e600000 0x44>, <0x7e1010b0 0x8>;
++	interrupts = <2 16>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&smi_pins>;
++	brcm,smi-clock-source = <6>;
++	brcm,smi-clock-divisor = <4>;
++	dmas = <&dma 4>;
++	dma-names = "rx-tx";
++
++	status = "okay";
++};
++
++smi_pins: smi_pins {
++	brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
++	/* Alt 1: SMI */
++	brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5>;
++	/* /CS, /WE and /OE are pulled high, as they are
++	   generally active low signals */
++	brcm,pull = <2 2 2 2 2 2 0 0 0 0 0 0 0 0>;
++};
++
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -24,3 +24,12 @@ config BCM2835_DEVGPIOMEM
+ 		Provides users with root-free access to the GPIO registers
+ 		on the 2835. Calling mmap(/dev/gpiomem) will map the GPIO
+ 		register page to the user's pointer.
++
++config BCM2835_SMI_DEV
++	tristate "Character device driver for BCM2835 Secondary Memory Interface"
++	depends on BCM2835_SMI
++	default m
++	help
++		This driver provides a character device interface (ioctl + read/write) to
++		Broadcom's Secondary Memory interface. The low-level functionality is provided
++		by the SMI driver itself.
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -1,2 +1,3 @@
+ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
+ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
++obj-$(CONFIG_BCM2835_SMI_DEV)	+= bcm2835_smi_dev.o
+--- /dev/null
++++ b/drivers/char/broadcom/bcm2835_smi_dev.c
+@@ -0,0 +1,402 @@
++/**
++ * Character device driver for Broadcom Secondary Memory Interface
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/mm.h>
++#include <linux/pagemap.h>
++#include <linux/fs.h>
++#include <linux/cdev.h>
++#include <linux/fs.h>
++
++#include <linux/broadcom/bcm2835_smi.h>
++
++#define DEVICE_NAME "bcm2835-smi-dev"
++#define DRIVER_NAME "smi-dev-bcm2835"
++#define DEVICE_MINOR 0
++
++static struct cdev bcm2835_smi_cdev;
++static dev_t bcm2835_smi_devid;
++static struct class *bcm2835_smi_class;
++static struct device *bcm2835_smi_dev;
++
++struct bcm2835_smi_dev_instance {
++	struct device *dev;
++};
++
++static struct bcm2835_smi_instance *smi_inst;
++static struct bcm2835_smi_dev_instance *inst;
++
++static const char *const ioctl_names[] = {
++	"READ_SETTINGS",
++	"WRITE_SETTINGS",
++	"ADDRESS"
++};
++
++/****************************************************************************
++*
++*   SMI chardev file ops
++*
++***************************************************************************/
++static long
++bcm2835_smi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
++{
++	long ret = 0;
++
++	dev_info(inst->dev, "serving ioctl...");
++
++	switch (cmd) {
++	case BCM2835_SMI_IOC_GET_SETTINGS:{
++		struct smi_settings *settings;
++
++		dev_info(inst->dev, "Reading SMI settings to user.");
++		settings = bcm2835_smi_get_settings_from_regs(smi_inst);
++		if (copy_to_user((void *)arg, settings,
++				 sizeof(struct smi_settings)))
++			dev_err(inst->dev, "settings copy failed.");
++		break;
++	}
++	case BCM2835_SMI_IOC_WRITE_SETTINGS:{
++		struct smi_settings *settings;
++
++		dev_info(inst->dev, "Setting user's SMI settings.");
++		settings = bcm2835_smi_get_settings_from_regs(smi_inst);
++		if (copy_from_user(settings, (void *)arg,
++				   sizeof(struct smi_settings)))
++			dev_err(inst->dev, "settings copy failed.");
++		else
++			bcm2835_smi_set_regs_from_settings(smi_inst);
++		break;
++	}
++	case BCM2835_SMI_IOC_ADDRESS:
++		dev_info(inst->dev, "SMI address set: 0x%02x", (int)arg);
++		bcm2835_smi_set_address(smi_inst, arg);
++		break;
++	default:
++		dev_err(inst->dev, "invalid ioctl cmd: %d", cmd);
++		ret = -ENOTTY;
++		break;
++	}
++
++	return ret;
++}
++
++static int bcm2835_smi_open(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++
++	dev_dbg(inst->dev, "SMI device opened.");
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev,
++			"bcm2835_smi_release: Unknown minor device: %d",
++			dev);
++		return -ENXIO;
++	}
++
++	return 0;
++}
++
++static int bcm2835_smi_release(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++
++	if (dev != DEVICE_MINOR) {
++		dev_err(inst->dev,
++			"bcm2835_smi_release: Unknown minor device %d", dev);
++		return -ENXIO;
++	}
++
++	return 0;
++}
++
++static ssize_t dma_bounce_user(
++	enum dma_transfer_direction dma_dir,
++	char __user *user_ptr,
++	size_t count,
++	struct bcm2835_smi_bounce_info *bounce)
++{
++	int chunk_size;
++	int chunk_no = 0;
++	int count_left = count;
++
++	while (count_left) {
++		int rv;
++		void *buf;
++
++		/* Wait for current chunk to complete: */
++		if (down_timeout(&bounce->callback_sem,
++			msecs_to_jiffies(1000))) {
++			dev_err(inst->dev, "DMA bounce timed out");
++			count -= (count_left);
++			break;
++		}
++
++		if (bounce->callback_sem.count >= DMA_BOUNCE_BUFFER_COUNT - 1)
++			dev_err(inst->dev, "WARNING: Ring buffer overflow");
++		chunk_size = count_left > DMA_BOUNCE_BUFFER_SIZE ?
++			DMA_BOUNCE_BUFFER_SIZE : count_left;
++		buf = bounce->buffer[chunk_no % DMA_BOUNCE_BUFFER_COUNT];
++		if (dma_dir == DMA_DEV_TO_MEM)
++			rv = copy_to_user(user_ptr, buf, chunk_size);
++		else
++			rv = copy_from_user(buf, user_ptr, chunk_size);
++		if (rv)
++			dev_err(inst->dev, "copy_*_user() failed!: %d", rv);
++		user_ptr += chunk_size;
++		count_left -= chunk_size;
++		chunk_no++;
++	}
++	return count;
++}
++
++static ssize_t
++bcm2835_read_file(struct file *f, char __user *user_ptr,
++		  size_t count, loff_t *offs)
++{
++	int odd_bytes;
++
++	dev_dbg(inst->dev, "User reading %zu bytes from SMI.", count);
++	/* We don't want to DMA a number of bytes % 4 != 0 (32 bit FIFO) */
++	if (count > DMA_THRESHOLD_BYTES)
++		odd_bytes = count & 0x3;
++	else
++		odd_bytes = count;
++	count -= odd_bytes;
++	if (count) {
++		struct bcm2835_smi_bounce_info *bounce;
++
++		count = bcm2835_smi_user_dma(smi_inst,
++			DMA_DEV_TO_MEM, user_ptr, count,
++			&bounce);
++		if (count)
++			count = dma_bounce_user(DMA_DEV_TO_MEM, user_ptr,
++				count, bounce);
++	}
++	if (odd_bytes) {
++		/* Read from FIFO directly if not using DMA */
++		uint8_t buf[DMA_THRESHOLD_BYTES];
++
++		bcm2835_smi_read_buf(smi_inst, buf, odd_bytes);
++		if (copy_to_user(user_ptr, buf, odd_bytes))
++			dev_err(inst->dev, "copy_to_user() failed.");
++		count += odd_bytes;
++
++	}
++	return count;
++}
++
++static ssize_t
++bcm2835_write_file(struct file *f, const char __user *user_ptr,
++		   size_t count, loff_t *offs)
++{
++	int odd_bytes;
++
++	dev_dbg(inst->dev, "User writing %zu bytes to SMI.", count);
++	if (count > DMA_THRESHOLD_BYTES)
++		odd_bytes = count & 0x3;
++	else
++		odd_bytes = count;
++	count -= odd_bytes;
++	if (count) {
++		struct bcm2835_smi_bounce_info *bounce;
++
++		count = bcm2835_smi_user_dma(smi_inst,
++			DMA_MEM_TO_DEV, (char __user *)user_ptr, count,
++			&bounce);
++		if (count)
++			count = dma_bounce_user(DMA_MEM_TO_DEV,
++				(char __user *)user_ptr,
++				count, bounce);
++	}
++	if (odd_bytes) {
++		uint8_t buf[DMA_THRESHOLD_BYTES];
++
++		if (copy_from_user(buf, user_ptr, odd_bytes))
++			dev_err(inst->dev, "copy_from_user() failed.");
++		else
++			bcm2835_smi_write_buf(smi_inst, buf, odd_bytes);
++		count += odd_bytes;
++	}
++	return count;
++}
++
++static const struct file_operations
++bcm2835_smi_fops = {
++	.owner = THIS_MODULE,
++	.unlocked_ioctl = bcm2835_smi_ioctl,
++	.open = bcm2835_smi_open,
++	.release = bcm2835_smi_release,
++	.read = bcm2835_read_file,
++	.write = bcm2835_write_file,
++};
++
++
++/****************************************************************************
++*
++*   bcm2835_smi_probe - called when the driver is loaded.
++*
++***************************************************************************/
++
++static int bcm2835_smi_dev_probe(struct platform_device *pdev)
++{
++	int err;
++	void *ptr_err;
++	struct device *dev = &pdev->dev;
++	struct device_node *node = dev->of_node, *smi_node;
++
++	if (!node) {
++		dev_err(dev, "No device tree node supplied!");
++		return -EINVAL;
++	}
++
++	smi_node = of_parse_phandle(node, "smi_handle", 0);
++
++	if (!smi_node) {
++		dev_err(dev, "No such property: smi_handle");
++		return -ENXIO;
++	}
++
++	smi_inst = bcm2835_smi_get(smi_node);
++
++	if (!smi_inst)
++		return -EPROBE_DEFER;
++
++	/* Allocate buffers and instance data */
++
++	inst = devm_kzalloc(dev, sizeof(*inst), GFP_KERNEL);
++
++	if (!inst)
++		return -ENOMEM;
++
++	inst->dev = dev;
++
++	/* Create character device entries */
++
++	err = alloc_chrdev_region(&bcm2835_smi_devid,
++				  DEVICE_MINOR, 1, DEVICE_NAME);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to allocate device number");
++		return -ENOMEM;
++	}
++	cdev_init(&bcm2835_smi_cdev, &bcm2835_smi_fops);
++	bcm2835_smi_cdev.owner = THIS_MODULE;
++	err = cdev_add(&bcm2835_smi_cdev, bcm2835_smi_devid, 1);
++	if (err != 0) {
++		dev_err(inst->dev, "unable to register device");
++		err = -ENOMEM;
++		goto failed_cdev_add;
++	}
++
++	/* Create sysfs entries */
++
++	bcm2835_smi_class = class_create(THIS_MODULE, DEVICE_NAME);
++	ptr_err = bcm2835_smi_class;
++	if (IS_ERR(ptr_err))
++		goto failed_class_create;
++
++	bcm2835_smi_dev = device_create(bcm2835_smi_class, NULL,
++					bcm2835_smi_devid, NULL,
++					"smi");
++	ptr_err = bcm2835_smi_dev;
++	if (IS_ERR(ptr_err))
++		goto failed_device_create;
++
++	dev_info(inst->dev, "initialised");
++
++	return 0;
++
++failed_device_create:
++	class_destroy(bcm2835_smi_class);
++failed_class_create:
++	cdev_del(&bcm2835_smi_cdev);
++	err = PTR_ERR(ptr_err);
++failed_cdev_add:
++	unregister_chrdev_region(bcm2835_smi_devid, 1);
++	dev_err(dev, "could not load bcm2835_smi_dev");
++	return err;
++}
++
++/****************************************************************************
++*
++*   bcm2835_smi_remove - called when the driver is unloaded.
++*
++***************************************************************************/
++
++static int bcm2835_smi_dev_remove(struct platform_device *pdev)
++{
++	device_destroy(bcm2835_smi_class, bcm2835_smi_devid);
++	class_destroy(bcm2835_smi_class);
++	cdev_del(&bcm2835_smi_cdev);
++	unregister_chrdev_region(bcm2835_smi_devid, 1);
++
++	dev_info(inst->dev, "SMI character dev removed - OK");
++	return 0;
++}
++
++/****************************************************************************
++*
++*   Register the driver with device tree
++*
++***************************************************************************/
++
++static const struct of_device_id bcm2835_smi_dev_of_match[] = {
++	{.compatible = "brcm,bcm2835-smi-dev",},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, bcm2835_smi_dev_of_match);
++
++static struct platform_driver bcm2835_smi_dev_driver = {
++	.probe = bcm2835_smi_dev_probe,
++	.remove = bcm2835_smi_dev_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = bcm2835_smi_dev_of_match,
++		   },
++};
++
++module_platform_driver(bcm2835_smi_dev_driver);
++
++MODULE_ALIAS("platform:smi-dev-bcm2835");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION(
++	"Character device driver for BCM2835's secondary memory interface");
++MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");
+--- a/drivers/misc/Kconfig
++++ b/drivers/misc/Kconfig
+@@ -9,6 +9,14 @@ config SENSORS_LIS3LV02D
+ 	tristate
+ 	depends on INPUT
+ 
++config BCM2835_SMI
++	tristate "Broadcom 283x Secondary Memory Interface driver"
++	depends on ARCH_BCM2835
++	default m
++	help
++		Driver for enabling and using Broadcom's Secondary/Slow Memory Interface.
++		Appears as /dev/bcm2835_smi. For ioctl interface see drivers/misc/bcm2835_smi.h
++
+ config AD525X_DPOT
+ 	tristate "Analog Devices Digital Potentiometers"
+ 	depends on (I2C || SPI) && SYSFS
+--- a/drivers/misc/Makefile
++++ b/drivers/misc/Makefile
+@@ -11,6 +11,7 @@ obj-$(CONFIG_AD525X_DPOT_SPI)	+= ad525x_
+ obj-$(CONFIG_INTEL_MID_PTI)	+= pti.o
+ obj-$(CONFIG_ATMEL_SSC)		+= atmel-ssc.o
+ obj-$(CONFIG_ATMEL_TCLIB)	+= atmel_tclib.o
++obj-$(CONFIG_BCM2835_SMI)	+= bcm2835_smi.o
+ obj-$(CONFIG_DUMMY_IRQ)		+= dummy-irq.o
+ obj-$(CONFIG_ICS932S401)	+= ics932s401.o
+ obj-$(CONFIG_LKDTM)		+= lkdtm/
+--- /dev/null
++++ b/drivers/misc/bcm2835_smi.c
+@@ -0,0 +1,955 @@
++/**
++ * Broadcom Secondary Memory Interface driver
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/of_address.h>
++#include <linux/of_platform.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/pagemap.h>
++#include <linux/dma-mapping.h>
++#include <linux/dmaengine.h>
++#include <linux/semaphore.h>
++#include <linux/spinlock.h>
++#include <linux/io.h>
++
++#define BCM2835_SMI_IMPLEMENTATION
++#include <linux/broadcom/bcm2835_smi.h>
++
++#define DRIVER_NAME "smi-bcm2835"
++
++#define N_PAGES_FROM_BYTES(n) ((n + PAGE_SIZE-1) / PAGE_SIZE)
++
++#define DMA_WRITE_TO_MEM true
++#define DMA_READ_FROM_MEM false
++
++struct bcm2835_smi_instance {
++	struct device *dev;
++	struct smi_settings settings;
++	__iomem void *smi_regs_ptr;
++	dma_addr_t smi_regs_busaddr;
++
++	struct dma_chan *dma_chan;
++	struct dma_slave_config dma_config;
++
++	struct bcm2835_smi_bounce_info bounce;
++
++	struct scatterlist buffer_sgl;
++
++	struct clk *clk;
++
++	/* Sometimes we are called into in an atomic context (e.g. by
++	   JFFS2 + MTD) so we can't use a mutex */
++	spinlock_t transaction_lock;
++};
++
++/****************************************************************************
++*
++*   SMI peripheral setup
++*
++***************************************************************************/
++
++static inline void write_smi_reg(struct bcm2835_smi_instance *inst,
++	u32 val, unsigned reg)
++{
++	writel(val, inst->smi_regs_ptr + reg);
++}
++
++static inline u32 read_smi_reg(struct bcm2835_smi_instance *inst, unsigned reg)
++{
++	return readl(inst->smi_regs_ptr + reg);
++}
++
++/* Token-paste macro for e.g SMIDSR_RSTROBE ->  value of SMIDSR_RSTROBE_MASK */
++#define _CONCAT(x, y) x##y
++#define CONCAT(x, y) _CONCAT(x, y)
++
++#define SET_BIT_FIELD(dest, field, bits) ((dest) = \
++	((dest) & ~CONCAT(field, _MASK)) | (((bits) << CONCAT(field, _OFFS))& \
++	 CONCAT(field, _MASK)))
++#define GET_BIT_FIELD(src, field) (((src) & \
++	CONCAT(field, _MASK)) >> CONCAT(field, _OFFS))
++
++static void smi_dump_context_labelled(struct bcm2835_smi_instance *inst,
++	const char *label)
++{
++	dev_err(inst->dev, "SMI context dump: %s", label);
++	dev_err(inst->dev, "SMICS:  0x%08x", read_smi_reg(inst, SMICS));
++	dev_err(inst->dev, "SMIL:   0x%08x", read_smi_reg(inst, SMIL));
++	dev_err(inst->dev, "SMIDSR: 0x%08x", read_smi_reg(inst, SMIDSR0));
++	dev_err(inst->dev, "SMIDSW: 0x%08x", read_smi_reg(inst, SMIDSW0));
++	dev_err(inst->dev, "SMIDC:  0x%08x", read_smi_reg(inst, SMIDC));
++	dev_err(inst->dev, "SMIFD:  0x%08x", read_smi_reg(inst, SMIFD));
++	dev_err(inst->dev, " ");
++}
++
++static inline void smi_dump_context(struct bcm2835_smi_instance *inst)
++{
++	smi_dump_context_labelled(inst, "");
++}
++
++static void smi_get_default_settings(struct bcm2835_smi_instance *inst)
++{
++	struct smi_settings *settings = &inst->settings;
++
++	settings->data_width = SMI_WIDTH_16BIT;
++	settings->pack_data = true;
++
++	settings->read_setup_time = 1;
++	settings->read_hold_time = 1;
++	settings->read_pace_time = 1;
++	settings->read_strobe_time = 3;
++
++	settings->write_setup_time = settings->read_setup_time;
++	settings->write_hold_time = settings->read_hold_time;
++	settings->write_pace_time = settings->read_pace_time;
++	settings->write_strobe_time = settings->read_strobe_time;
++
++	settings->dma_enable = true;
++	settings->dma_passthrough_enable = false;
++	settings->dma_read_thresh = 0x01;
++	settings->dma_write_thresh = 0x3f;
++	settings->dma_panic_read_thresh = 0x20;
++	settings->dma_panic_write_thresh = 0x20;
++}
++
++void bcm2835_smi_set_regs_from_settings(struct bcm2835_smi_instance *inst)
++{
++	struct smi_settings *settings = &inst->settings;
++	int smidsr_temp = 0, smidsw_temp = 0, smics_temp,
++	    smidcs_temp, smidc_temp = 0;
++
++	spin_lock(&inst->transaction_lock);
++
++	/* temporarily disable the peripheral: */
++	smics_temp = read_smi_reg(inst, SMICS);
++	write_smi_reg(inst, 0, SMICS);
++	smidcs_temp = read_smi_reg(inst, SMIDCS);
++	write_smi_reg(inst, 0, SMIDCS);
++
++	if (settings->pack_data)
++		smics_temp |= SMICS_PXLDAT;
++	else
++		smics_temp &= ~SMICS_PXLDAT;
++
++	SET_BIT_FIELD(smidsr_temp, SMIDSR_RWIDTH, settings->data_width);
++	SET_BIT_FIELD(smidsr_temp, SMIDSR_RSETUP, settings->read_setup_time);
++	SET_BIT_FIELD(smidsr_temp, SMIDSR_RHOLD, settings->read_hold_time);
++	SET_BIT_FIELD(smidsr_temp, SMIDSR_RPACE, settings->read_pace_time);
++	SET_BIT_FIELD(smidsr_temp, SMIDSR_RSTROBE, settings->read_strobe_time);
++	write_smi_reg(inst, smidsr_temp, SMIDSR0);
++
++	SET_BIT_FIELD(smidsw_temp, SMIDSW_WWIDTH, settings->data_width);
++	if (settings->data_width == SMI_WIDTH_8BIT)
++		smidsw_temp |= SMIDSW_WSWAP;
++	else
++		smidsw_temp &= ~SMIDSW_WSWAP;
++	SET_BIT_FIELD(smidsw_temp, SMIDSW_WSETUP, settings->write_setup_time);
++	SET_BIT_FIELD(smidsw_temp, SMIDSW_WHOLD, settings->write_hold_time);
++	SET_BIT_FIELD(smidsw_temp, SMIDSW_WPACE, settings->write_pace_time);
++	SET_BIT_FIELD(smidsw_temp, SMIDSW_WSTROBE,
++			settings->write_strobe_time);
++	write_smi_reg(inst, smidsw_temp, SMIDSW0);
++
++	SET_BIT_FIELD(smidc_temp, SMIDC_REQR, settings->dma_read_thresh);
++	SET_BIT_FIELD(smidc_temp, SMIDC_REQW, settings->dma_write_thresh);
++	SET_BIT_FIELD(smidc_temp, SMIDC_PANICR,
++		      settings->dma_panic_read_thresh);
++	SET_BIT_FIELD(smidc_temp, SMIDC_PANICW,
++		      settings->dma_panic_write_thresh);
++	if (settings->dma_passthrough_enable) {
++		smidc_temp |= SMIDC_DMAP;
++		smidsr_temp |= SMIDSR_RDREQ;
++		write_smi_reg(inst, smidsr_temp, SMIDSR0);
++		smidsw_temp |= SMIDSW_WDREQ;
++		write_smi_reg(inst, smidsw_temp, SMIDSW0);
++	} else
++		smidc_temp &= ~SMIDC_DMAP;
++	if (settings->dma_enable)
++		smidc_temp |= SMIDC_DMAEN;
++	else
++		smidc_temp &= ~SMIDC_DMAEN;
++
++	write_smi_reg(inst, smidc_temp, SMIDC);
++
++	/* re-enable (if was previously enabled) */
++	write_smi_reg(inst, smics_temp, SMICS);
++	write_smi_reg(inst, smidcs_temp, SMIDCS);
++
++	spin_unlock(&inst->transaction_lock);
++}
++EXPORT_SYMBOL(bcm2835_smi_set_regs_from_settings);
++
++struct smi_settings *bcm2835_smi_get_settings_from_regs
++	(struct bcm2835_smi_instance *inst)
++{
++	struct smi_settings *settings = &inst->settings;
++	int smidsr, smidsw, smidc;
++
++	spin_lock(&inst->transaction_lock);
++
++	smidsr = read_smi_reg(inst, SMIDSR0);
++	smidsw = read_smi_reg(inst, SMIDSW0);
++	smidc = read_smi_reg(inst, SMIDC);
++
++	settings->pack_data = (read_smi_reg(inst, SMICS) & SMICS_PXLDAT) ?
++	    true : false;
++
++	settings->data_width = GET_BIT_FIELD(smidsr, SMIDSR_RWIDTH);
++	settings->read_setup_time = GET_BIT_FIELD(smidsr, SMIDSR_RSETUP);
++	settings->read_hold_time = GET_BIT_FIELD(smidsr, SMIDSR_RHOLD);
++	settings->read_pace_time = GET_BIT_FIELD(smidsr, SMIDSR_RPACE);
++	settings->read_strobe_time = GET_BIT_FIELD(smidsr, SMIDSR_RSTROBE);
++
++	settings->write_setup_time = GET_BIT_FIELD(smidsw, SMIDSW_WSETUP);
++	settings->write_hold_time = GET_BIT_FIELD(smidsw, SMIDSW_WHOLD);
++	settings->write_pace_time = GET_BIT_FIELD(smidsw, SMIDSW_WPACE);
++	settings->write_strobe_time = GET_BIT_FIELD(smidsw, SMIDSW_WSTROBE);
++
++	settings->dma_read_thresh = GET_BIT_FIELD(smidc, SMIDC_REQR);
++	settings->dma_write_thresh = GET_BIT_FIELD(smidc, SMIDC_REQW);
++	settings->dma_panic_read_thresh = GET_BIT_FIELD(smidc, SMIDC_PANICR);
++	settings->dma_panic_write_thresh = GET_BIT_FIELD(smidc, SMIDC_PANICW);
++	settings->dma_passthrough_enable = (smidc & SMIDC_DMAP) ? true : false;
++	settings->dma_enable = (smidc & SMIDC_DMAEN) ? true : false;
++
++	spin_unlock(&inst->transaction_lock);
++
++	return settings;
++}
++EXPORT_SYMBOL(bcm2835_smi_get_settings_from_regs);
++
++static inline void smi_set_address(struct bcm2835_smi_instance *inst,
++	unsigned int address)
++{
++	int smia_temp = 0, smida_temp = 0;
++
++	SET_BIT_FIELD(smia_temp, SMIA_ADDR, address);
++	SET_BIT_FIELD(smida_temp, SMIDA_ADDR, address);
++
++	/* Write to both address registers - user doesn't care whether we're
++	   doing programmed or direct transfers. */
++	write_smi_reg(inst, smia_temp, SMIA);
++	write_smi_reg(inst, smida_temp, SMIDA);
++}
++
++static void smi_setup_regs(struct bcm2835_smi_instance *inst)
++{
++
++	dev_dbg(inst->dev, "Initialising SMI registers...");
++	/* Disable the peripheral if already enabled */
++	write_smi_reg(inst, 0, SMICS);
++	write_smi_reg(inst, 0, SMIDCS);
++
++	smi_get_default_settings(inst);
++	bcm2835_smi_set_regs_from_settings(inst);
++	smi_set_address(inst, 0);
++
++	write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_ENABLE, SMICS);
++	write_smi_reg(inst, read_smi_reg(inst, SMIDCS) | SMIDCS_ENABLE,
++		SMIDCS);
++}
++
++/****************************************************************************
++*
++*   Low-level SMI access functions
++*   Other modules should use the exported higher-level functions e.g.
++*   bcm2835_smi_write_buf() unless they have a good reason to use these
++*
++***************************************************************************/
++
++static inline uint32_t smi_read_single_word(struct bcm2835_smi_instance *inst)
++{
++	int timeout = 0;
++
++	write_smi_reg(inst, SMIDCS_ENABLE, SMIDCS);
++	write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_START, SMIDCS);
++	/* Make sure things happen in the right order...*/
++	mb();
++	while (!(read_smi_reg(inst, SMIDCS) & SMIDCS_DONE) &&
++		++timeout < 10000)
++		;
++	if (timeout < 10000)
++		return read_smi_reg(inst, SMIDD);
++
++	dev_err(inst->dev,
++		"SMI direct read timed out (is the clock set up correctly?)");
++	return 0;
++}
++
++static inline void smi_write_single_word(struct bcm2835_smi_instance *inst,
++	uint32_t data)
++{
++	int timeout = 0;
++
++	write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_WRITE, SMIDCS);
++	write_smi_reg(inst, data, SMIDD);
++	write_smi_reg(inst, SMIDCS_ENABLE | SMIDCS_WRITE | SMIDCS_START,
++		SMIDCS);
++
++	while (!(read_smi_reg(inst, SMIDCS) & SMIDCS_DONE) &&
++		++timeout < 10000)
++		;
++	if (timeout >= 10000)
++		dev_err(inst->dev,
++		"SMI direct write timed out (is the clock set up correctly?)");
++}
++
++/* Initiates a programmed read into the read FIFO. It is up to the caller to
++ * read data from the FIFO -  either via paced DMA transfer,
++ * or polling SMICS_RXD to check whether data is available.
++ * SMICS_ACTIVE will go low upon completion. */
++static void smi_init_programmed_read(struct bcm2835_smi_instance *inst,
++	int num_transfers)
++{
++	int smics_temp;
++
++	/* Disable the peripheral: */
++	smics_temp = read_smi_reg(inst, SMICS) & ~(SMICS_ENABLE | SMICS_WRITE);
++	write_smi_reg(inst, smics_temp, SMICS);
++	while (read_smi_reg(inst, SMICS) & SMICS_ENABLE)
++		;
++
++	/* Program the transfer count: */
++	write_smi_reg(inst, num_transfers, SMIL);
++
++	/* re-enable and start: */
++	smics_temp |= SMICS_ENABLE;
++	write_smi_reg(inst, smics_temp, SMICS);
++	smics_temp |= SMICS_CLEAR;
++	/* Just to be certain: */
++	mb();
++	while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE)
++		;
++	write_smi_reg(inst, smics_temp, SMICS);
++	smics_temp |= SMICS_START;
++	write_smi_reg(inst, smics_temp, SMICS);
++}
++
++/* Initiates a programmed write sequence, using data from the write FIFO.
++ * It is up to the caller to initiate a DMA transfer before calling,
++ * or use another method to keep the write FIFO topped up.
++ * SMICS_ACTIVE will go low upon completion.
++ */
++static void smi_init_programmed_write(struct bcm2835_smi_instance *inst,
++	int num_transfers)
++{
++	int smics_temp;
++
++	/* Disable the peripheral: */
++	smics_temp = read_smi_reg(inst, SMICS) & ~SMICS_ENABLE;
++	write_smi_reg(inst, smics_temp, SMICS);
++	while (read_smi_reg(inst, SMICS) & SMICS_ENABLE)
++		;
++
++	/* Program the transfer count: */
++	write_smi_reg(inst, num_transfers, SMIL);
++
++	/* setup, re-enable and start: */
++	smics_temp |= SMICS_WRITE | SMICS_ENABLE;
++	write_smi_reg(inst, smics_temp, SMICS);
++	smics_temp |= SMICS_START;
++	write_smi_reg(inst, smics_temp, SMICS);
++}
++
++/* Initiate a read and then poll FIFO for data, reading out as it appears. */
++static void smi_read_fifo(struct bcm2835_smi_instance *inst,
++	uint32_t *dest, int n_bytes)
++{
++	if (read_smi_reg(inst, SMICS) & SMICS_RXD) {
++		smi_dump_context_labelled(inst,
++			"WARNING: read FIFO not empty at start of read call.");
++		while (read_smi_reg(inst, SMICS))
++			;
++	}
++
++	/* Dispatch the read: */
++	if (inst->settings.data_width == SMI_WIDTH_8BIT)
++		smi_init_programmed_read(inst, n_bytes);
++	else if (inst->settings.data_width == SMI_WIDTH_16BIT)
++		smi_init_programmed_read(inst, n_bytes / 2);
++	else {
++		dev_err(inst->dev, "Unsupported data width for read.");
++		return;
++	}
++
++	/* Poll FIFO to keep it empty */
++	while (!(read_smi_reg(inst, SMICS) & SMICS_DONE))
++		if (read_smi_reg(inst, SMICS) & SMICS_RXD)
++			*dest++ = read_smi_reg(inst, SMID);
++
++	/* Ensure that the FIFO is emptied */
++	if (read_smi_reg(inst, SMICS) & SMICS_RXD) {
++		int fifo_count;
++
++		fifo_count = GET_BIT_FIELD(read_smi_reg(inst, SMIFD),
++			SMIFD_FCNT);
++		while (fifo_count--)
++			*dest++ = read_smi_reg(inst, SMID);
++	}
++
++	if (!(read_smi_reg(inst, SMICS) & SMICS_DONE))
++		smi_dump_context_labelled(inst,
++			"WARNING: transaction finished but done bit not set.");
++
++	if (read_smi_reg(inst, SMICS) & SMICS_RXD)
++		smi_dump_context_labelled(inst,
++			"WARNING: read FIFO not empty at end of read call.");
++
++}
++
++/* Initiate a write, and then keep the FIFO topped up. */
++static void smi_write_fifo(struct bcm2835_smi_instance *inst,
++	uint32_t *src, int n_bytes)
++{
++	int i, timeout = 0;
++
++	/* Empty FIFOs if not already so */
++	if (!(read_smi_reg(inst, SMICS) & SMICS_TXE)) {
++		smi_dump_context_labelled(inst,
++		    "WARNING: write fifo not empty at start of write call.");
++		write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_CLEAR,
++			SMICS);
++	}
++
++	/* Initiate the transfer */
++	if (inst->settings.data_width == SMI_WIDTH_8BIT)
++		smi_init_programmed_write(inst, n_bytes);
++	else if (inst->settings.data_width == SMI_WIDTH_16BIT)
++		smi_init_programmed_write(inst, n_bytes / 2);
++	else {
++		dev_err(inst->dev, "Unsupported data width for write.");
++		return;
++	}
++	/* Fill the FIFO: */
++	for (i = 0; i < (n_bytes - 1) / 4 + 1; ++i) {
++		while (!(read_smi_reg(inst, SMICS) & SMICS_TXD))
++			;
++		write_smi_reg(inst, *src++, SMID);
++	}
++	/* Busy wait... */
++	while (!(read_smi_reg(inst, SMICS) & SMICS_DONE) && ++timeout <
++		1000000)
++		;
++	if (timeout >= 1000000)
++		smi_dump_context_labelled(inst,
++			"Timed out on write operation!");
++	if (!(read_smi_reg(inst, SMICS) & SMICS_TXE))
++		smi_dump_context_labelled(inst,
++			"WARNING: FIFO not empty at end of write operation.");
++}
++
++/****************************************************************************
++*
++*   SMI DMA operations
++*
++***************************************************************************/
++
++/* Disable SMI and put it into the correct direction before doing DMA setup.
++   Stops spurious DREQs during setup. Peripheral is re-enabled by init_*() */
++static void smi_disable(struct bcm2835_smi_instance *inst,
++	enum dma_transfer_direction direction)
++{
++	int smics_temp = read_smi_reg(inst, SMICS) & ~SMICS_ENABLE;
++
++	if (direction == DMA_DEV_TO_MEM)
++		smics_temp &= ~SMICS_WRITE;
++	else
++		smics_temp |= SMICS_WRITE;
++	write_smi_reg(inst, smics_temp, SMICS);
++	while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE)
++		;
++}
++
++static struct scatterlist *smi_scatterlist_from_buffer(
++	struct bcm2835_smi_instance *inst,
++	dma_addr_t buf,
++	size_t len,
++	struct scatterlist *sg)
++{
++	sg_init_table(sg, 1);
++	sg_dma_address(sg) = buf;
++	sg_dma_len(sg) = len;
++	return sg;
++}
++
++static void smi_dma_callback_user_copy(void *param)
++{
++	/* Notify the bottom half that a chunk is ready for user copy */
++	struct bcm2835_smi_instance *inst =
++		(struct bcm2835_smi_instance *)param;
++
++	up(&inst->bounce.callback_sem);
++}
++
++/* Creates a descriptor, assigns the given callback, and submits the
++   descriptor to dmaengine. Does not block - can queue up multiple
++   descriptors and then wait for them all to complete.
++   sg_len is the number of control blocks, NOT the number of bytes.
++   dir can be DMA_MEM_TO_DEV or DMA_DEV_TO_MEM.
++   callback can be NULL - in this case it is not called. */
++static inline struct dma_async_tx_descriptor *smi_dma_submit_sgl(
++	struct bcm2835_smi_instance *inst,
++	struct scatterlist *sgl,
++	size_t sg_len,
++	enum dma_transfer_direction dir,
++	dma_async_tx_callback callback)
++{
++	struct dma_async_tx_descriptor *desc;
++
++	desc = dmaengine_prep_slave_sg(inst->dma_chan,
++				       sgl,
++				       sg_len,
++				       dir,
++				       DMA_PREP_INTERRUPT | DMA_CTRL_ACK |
++				       DMA_PREP_FENCE);
++	if (!desc) {
++		dev_err(inst->dev, "read_sgl: dma slave preparation failed!");
++		write_smi_reg(inst, read_smi_reg(inst, SMICS) & ~SMICS_ACTIVE,
++			SMICS);
++		while (read_smi_reg(inst, SMICS) & SMICS_ACTIVE)
++			cpu_relax();
++		write_smi_reg(inst, read_smi_reg(inst, SMICS) | SMICS_ACTIVE,
++			SMICS);
++		return NULL;
++	}
++	desc->callback = callback;
++	desc->callback_param = inst;
++	if (dmaengine_submit(desc) < 0)
++		return NULL;
++	return desc;
++}
++
++/* NB this function blocks until the transfer is complete */
++static void
++smi_dma_read_sgl(struct bcm2835_smi_instance *inst,
++	struct scatterlist *sgl, size_t sg_len, size_t n_bytes)
++{
++	struct dma_async_tx_descriptor *desc;
++
++	/* Disable SMI and set to read before dispatching DMA - if SMI is in
++	 * write mode and TX fifo is empty, it will generate a DREQ which may
++	 * cause the read DMA to complete before the SMI read command is even
++	 * dispatched! We want to dispatch DMA before SMI read so that reading
++	 * is gapless, for logic analyser.
++	 */
++
++	smi_disable(inst, DMA_DEV_TO_MEM);
++
++	desc = smi_dma_submit_sgl(inst, sgl, sg_len, DMA_DEV_TO_MEM, NULL);
++	dma_async_issue_pending(inst->dma_chan);
++
++	if (inst->settings.data_width == SMI_WIDTH_8BIT)
++		smi_init_programmed_read(inst, n_bytes);
++	else
++		smi_init_programmed_read(inst, n_bytes / 2);
++
++	if (dma_wait_for_async_tx(desc) == DMA_ERROR)
++		smi_dump_context_labelled(inst, "DMA timeout!");
++}
++
++static void
++smi_dma_write_sgl(struct bcm2835_smi_instance *inst,
++	struct scatterlist *sgl, size_t sg_len, size_t n_bytes)
++{
++	struct dma_async_tx_descriptor *desc;
++
++	if (inst->settings.data_width == SMI_WIDTH_8BIT)
++		smi_init_programmed_write(inst, n_bytes);
++	else
++		smi_init_programmed_write(inst, n_bytes / 2);
++
++	desc = smi_dma_submit_sgl(inst, sgl, sg_len, DMA_MEM_TO_DEV, NULL);
++	dma_async_issue_pending(inst->dma_chan);
++
++	if (dma_wait_for_async_tx(desc) == DMA_ERROR)
++		smi_dump_context_labelled(inst, "DMA timeout!");
++	else
++		/* Wait for SMI to finish our writes */
++		while (!(read_smi_reg(inst, SMICS) & SMICS_DONE))
++			cpu_relax();
++}
++
++ssize_t bcm2835_smi_user_dma(
++	struct bcm2835_smi_instance *inst,
++	enum dma_transfer_direction dma_dir,
++	char __user *user_ptr, size_t count,
++	struct bcm2835_smi_bounce_info **bounce)
++{
++	int chunk_no = 0, chunk_size, count_left = count;
++	struct scatterlist *sgl;
++	void (*init_trans_func)(struct bcm2835_smi_instance *, int);
++
++	spin_lock(&inst->transaction_lock);
++
++	if (dma_dir == DMA_DEV_TO_MEM)
++		init_trans_func = smi_init_programmed_read;
++	else
++		init_trans_func = smi_init_programmed_write;
++
++	smi_disable(inst, dma_dir);
++
++	sema_init(&inst->bounce.callback_sem, 0);
++	if (bounce)
++		*bounce = &inst->bounce;
++	while (count_left) {
++		chunk_size = count_left > DMA_BOUNCE_BUFFER_SIZE ?
++			DMA_BOUNCE_BUFFER_SIZE : count_left;
++		if (chunk_size == DMA_BOUNCE_BUFFER_SIZE) {
++			sgl =
++			&inst->bounce.sgl[chunk_no % DMA_BOUNCE_BUFFER_COUNT];
++		} else {
++			sgl = smi_scatterlist_from_buffer(
++				inst,
++				inst->bounce.phys[
++					chunk_no % DMA_BOUNCE_BUFFER_COUNT],
++				chunk_size,
++				&inst->buffer_sgl);
++		}
++
++		if (!smi_dma_submit_sgl(inst, sgl, 1, dma_dir,
++			smi_dma_callback_user_copy
++		)) {
++			dev_err(inst->dev, "sgl submit failed");
++			count = 0;
++			goto out;
++		}
++		count_left -= chunk_size;
++		chunk_no++;
++	}
++	dma_async_issue_pending(inst->dma_chan);
++
++	if (inst->settings.data_width == SMI_WIDTH_8BIT)
++		init_trans_func(inst, count);
++	else if (inst->settings.data_width == SMI_WIDTH_16BIT)
++		init_trans_func(inst, count / 2);
++out:
++	spin_unlock(&inst->transaction_lock);
++	return count;
++}
++EXPORT_SYMBOL(bcm2835_smi_user_dma);
++
++
++/****************************************************************************
++*
++*   High level buffer transfer functions - for use by other drivers
++*
++***************************************************************************/
++
++/* Buffer must be physically contiguous - i.e. kmalloc, not vmalloc! */
++void bcm2835_smi_write_buf(
++	struct bcm2835_smi_instance *inst,
++	const void *buf, size_t n_bytes)
++{
++	int odd_bytes = n_bytes & 0x3;
++
++	n_bytes -= odd_bytes;
++
++	spin_lock(&inst->transaction_lock);
++
++	if (n_bytes > DMA_THRESHOLD_BYTES) {
++		dma_addr_t phy_addr = dma_map_single(
++			inst->dev,
++			(void *)buf,
++			n_bytes,
++			DMA_MEM_TO_DEV);
++		struct scatterlist *sgl =
++			smi_scatterlist_from_buffer(inst, phy_addr, n_bytes,
++				&inst->buffer_sgl);
++
++		if (!sgl) {
++			smi_dump_context_labelled(inst,
++			"Error: could not create scatterlist for write!");
++			goto out;
++		}
++		smi_dma_write_sgl(inst, sgl, 1, n_bytes);
++
++		dma_unmap_single
++			(inst->dev, phy_addr, n_bytes, DMA_MEM_TO_DEV);
++	} else if (n_bytes) {
++		smi_write_fifo(inst, (uint32_t *) buf, n_bytes);
++	}
++	buf += n_bytes;
++
++	if (inst->settings.data_width == SMI_WIDTH_8BIT) {
++		while (odd_bytes--)
++			smi_write_single_word(inst, *(uint8_t *) (buf++));
++	} else {
++		while (odd_bytes >= 2) {
++			smi_write_single_word(inst, *(uint16_t *)buf);
++			buf += 2;
++			odd_bytes -= 2;
++		}
++		if (odd_bytes) {
++			/* Reading an odd number of bytes on a 16 bit bus is
++			   a user bug. It's kinder to fail early and tell them
++			   than to e.g. transparently give them the bottom byte
++			   of a 16 bit transfer. */
++			dev_err(inst->dev,
++		"WARNING: odd number of bytes specified for wide transfer.");
++			dev_err(inst->dev,
++		"At least one byte dropped as a result.");
++			dump_stack();
++		}
++	}
++out:
++	spin_unlock(&inst->transaction_lock);
++}
++EXPORT_SYMBOL(bcm2835_smi_write_buf);
++
++void bcm2835_smi_read_buf(struct bcm2835_smi_instance *inst,
++	void *buf, size_t n_bytes)
++{
++
++	/* SMI is inherently 32-bit, which causes surprising amounts of mess
++	   for bytes % 4 != 0. Easiest to avoid this mess altogether
++	   by handling remainder separately. */
++	int odd_bytes = n_bytes & 0x3;
++
++	spin_lock(&inst->transaction_lock);
++	n_bytes -= odd_bytes;
++	if (n_bytes > DMA_THRESHOLD_BYTES) {
++		dma_addr_t phy_addr = dma_map_single(inst->dev,
++						     buf, n_bytes,
++						     DMA_DEV_TO_MEM);
++		struct scatterlist *sgl = smi_scatterlist_from_buffer(
++			inst, phy_addr, n_bytes,
++			&inst->buffer_sgl);
++		if (!sgl) {
++			smi_dump_context_labelled(inst,
++			"Error: could not create scatterlist for read!");
++			goto out;
++		}
++		smi_dma_read_sgl(inst, sgl, 1, n_bytes);
++		dma_unmap_single(inst->dev, phy_addr, n_bytes, DMA_DEV_TO_MEM);
++	} else if (n_bytes) {
++		smi_read_fifo(inst, (uint32_t *)buf, n_bytes);
++	}
++	buf += n_bytes;
++
++	if (inst->settings.data_width == SMI_WIDTH_8BIT) {
++		while (odd_bytes--)
++			*((uint8_t *) (buf++)) = smi_read_single_word(inst);
++	} else {
++		while (odd_bytes >= 2) {
++			*(uint16_t *) buf = smi_read_single_word(inst);
++			buf += 2;
++			odd_bytes -= 2;
++		}
++		if (odd_bytes) {
++			dev_err(inst->dev,
++		"WARNING: odd number of bytes specified for wide transfer.");
++			dev_err(inst->dev,
++		"At least one byte dropped as a result.");
++			dump_stack();
++		}
++	}
++out:
++	spin_unlock(&inst->transaction_lock);
++}
++EXPORT_SYMBOL(bcm2835_smi_read_buf);
++
++void bcm2835_smi_set_address(struct bcm2835_smi_instance *inst,
++	unsigned int address)
++{
++	spin_lock(&inst->transaction_lock);
++	smi_set_address(inst, address);
++	spin_unlock(&inst->transaction_lock);
++}
++EXPORT_SYMBOL(bcm2835_smi_set_address);
++
++struct bcm2835_smi_instance *bcm2835_smi_get(struct device_node *node)
++{
++	struct platform_device *pdev;
++
++	if (!node)
++		return NULL;
++
++	pdev = of_find_device_by_node(node);
++	if (!pdev)
++		return NULL;
++
++	return platform_get_drvdata(pdev);
++}
++EXPORT_SYMBOL(bcm2835_smi_get);
++
++/****************************************************************************
++*
++*   bcm2835_smi_probe - called when the driver is loaded.
++*
++***************************************************************************/
++
++static int bcm2835_smi_dma_setup(struct bcm2835_smi_instance *inst)
++{
++	int i, rv = 0;
++
++	inst->dma_chan = dma_request_slave_channel(inst->dev, "rx-tx");
++
++	inst->dma_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++	inst->dma_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
++	inst->dma_config.src_addr = inst->smi_regs_busaddr + SMID;
++	inst->dma_config.dst_addr = inst->dma_config.src_addr;
++	/* Direction unimportant - always overridden by prep_slave_sg */
++	inst->dma_config.direction = DMA_DEV_TO_MEM;
++	dmaengine_slave_config(inst->dma_chan, &inst->dma_config);
++	/* Alloc and map bounce buffers */
++	for (i = 0; i < DMA_BOUNCE_BUFFER_COUNT; ++i) {
++		inst->bounce.buffer[i] =
++		dmam_alloc_coherent(inst->dev, DMA_BOUNCE_BUFFER_SIZE,
++				&inst->bounce.phys[i],
++				GFP_KERNEL);
++		if (!inst->bounce.buffer[i]) {
++			dev_err(inst->dev, "Could not allocate buffer!");
++			rv = -ENOMEM;
++			break;
++		}
++		smi_scatterlist_from_buffer(
++			inst,
++			inst->bounce.phys[i],
++			DMA_BOUNCE_BUFFER_SIZE,
++			&inst->bounce.sgl[i]
++		);
++	}
++
++	return rv;
++}
++
++static int bcm2835_smi_probe(struct platform_device *pdev)
++{
++	int err;
++	struct device *dev = &pdev->dev;
++	struct device_node *node = dev->of_node;
++	struct resource *ioresource;
++	struct bcm2835_smi_instance *inst;
++	const __be32 *addr;
++
++	/* We require device tree support */
++	if (!node)
++		return -EINVAL;
++	/* Allocate buffers and instance data */
++	inst = devm_kzalloc(dev, sizeof(struct bcm2835_smi_instance),
++		GFP_KERNEL);
++	if (!inst)
++		return -ENOMEM;
++
++	inst->dev = dev;
++	spin_lock_init(&inst->transaction_lock);
++
++	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	inst->smi_regs_ptr = devm_ioremap_resource(dev, ioresource);
++	if (IS_ERR(inst->smi_regs_ptr)) {
++		err = PTR_ERR(inst->smi_regs_ptr);
++		goto err;
++	}
++	addr = of_get_address(node, 0, NULL, NULL);
++	inst->smi_regs_busaddr = be32_to_cpu(*addr);
++
++	err = bcm2835_smi_dma_setup(inst);
++	if (err)
++		goto err;
++
++	/* request clock */
++	inst->clk = devm_clk_get(dev, NULL);
++	if (!inst->clk)
++		goto err;
++	clk_prepare_enable(inst->clk);
++
++	/* Finally, do peripheral setup */
++	smi_setup_regs(inst);
++
++	platform_set_drvdata(pdev, inst);
++
++	dev_info(inst->dev, "initialised");
++
++	return 0;
++err:
++	kfree(inst);
++	return err;
++}
++
++/****************************************************************************
++*
++*   bcm2835_smi_remove - called when the driver is unloaded.
++*
++***************************************************************************/
++
++static int bcm2835_smi_remove(struct platform_device *pdev)
++{
++	struct bcm2835_smi_instance *inst = platform_get_drvdata(pdev);
++	struct device *dev = inst->dev;
++
++	dmaengine_terminate_all(inst->dma_chan);
++	dma_release_channel(inst->dma_chan);
++
++	clk_disable_unprepare(inst->clk);
++
++	dev_info(dev, "SMI device removed - OK");
++	return 0;
++}
++
++/****************************************************************************
++*
++*   Register the driver with device tree
++*
++***************************************************************************/
++
++static const struct of_device_id bcm2835_smi_of_match[] = {
++	{.compatible = "brcm,bcm2835-smi",},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, bcm2835_smi_of_match);
++
++static struct platform_driver bcm2835_smi_driver = {
++	.probe = bcm2835_smi_probe,
++	.remove = bcm2835_smi_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = bcm2835_smi_of_match,
++		   },
++};
++
++module_platform_driver(bcm2835_smi_driver);
++
++MODULE_ALIAS("platform:smi-bcm2835");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Device driver for BCM2835's secondary memory interface");
++MODULE_AUTHOR("Luke Wren <luke@raspberrypi.org>");
+--- /dev/null
++++ b/include/linux/broadcom/bcm2835_smi.h
+@@ -0,0 +1,391 @@
++/**
++ * Declarations and definitions for Broadcom's Secondary Memory Interface
++ *
++ * Written by Luke Wren <luke@raspberrypi.org>
++ * Copyright (c) 2015, Raspberry Pi (Trading) Ltd.
++ * Copyright (c) 2010-2012 Broadcom. All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#ifndef BCM2835_SMI_H
++#define BCM2835_SMI_H
++
++#include <linux/ioctl.h>
++
++#ifndef __KERNEL__
++#include <stdint.h>
++#include <stdbool.h>
++#endif
++
++#define BCM2835_SMI_IOC_MAGIC 0x1
++#define BCM2835_SMI_INVALID_HANDLE (~0)
++
++/* IOCTLs 0x100...0x1ff are not device-specific - we can use them */
++#define BCM2835_SMI_IOC_GET_SETTINGS    _IO(BCM2835_SMI_IOC_MAGIC, 0)
++#define BCM2835_SMI_IOC_WRITE_SETTINGS  _IO(BCM2835_SMI_IOC_MAGIC, 1)
++#define BCM2835_SMI_IOC_ADDRESS	 _IO(BCM2835_SMI_IOC_MAGIC, 2)
++#define BCM2835_SMI_IOC_MAX	     2
++
++#define SMI_WIDTH_8BIT 0
++#define SMI_WIDTH_16BIT 1
++#define SMI_WIDTH_9BIT 2
++#define SMI_WIDTH_18BIT 3
++
++/* max number of bytes where DMA will not be used */
++#define DMA_THRESHOLD_BYTES 128
++#define DMA_BOUNCE_BUFFER_SIZE (1024 * 1024 / 2)
++#define DMA_BOUNCE_BUFFER_COUNT 3
++
++
++struct smi_settings {
++	int data_width;
++	/* Whether or not to pack multiple SMI transfers into a
++	   single 32 bit FIFO word */
++	bool pack_data;
++
++	/* Timing for reads (writes the same but for WE)
++	 *
++	 * OE ----------+	   +--------------------
++	 *		|	   |
++	 *		+----------+
++	 * SD -<==============================>-----------
++	 * SA -<=========================================>-
++	 *    <-setup->  <-strobe ->  <-hold ->  <- pace ->
++	 */
++
++	int read_setup_time;
++	int read_hold_time;
++	int read_pace_time;
++	int read_strobe_time;
++
++	int write_setup_time;
++	int write_hold_time;
++	int write_pace_time;
++	int write_strobe_time;
++
++	bool dma_enable;		/* DREQs */
++	bool dma_passthrough_enable;	/* External DREQs */
++	int dma_read_thresh;
++	int dma_write_thresh;
++	int dma_panic_read_thresh;
++	int dma_panic_write_thresh;
++};
++
++/****************************************************************************
++*
++*   Declare exported SMI functions
++*
++***************************************************************************/
++
++#ifdef __KERNEL__
++
++#include <linux/dmaengine.h> /* for enum dma_transfer_direction */
++#include <linux/of.h>
++#include <linux/semaphore.h>
++
++struct bcm2835_smi_instance;
++
++struct bcm2835_smi_bounce_info {
++	struct semaphore callback_sem;
++	void *buffer[DMA_BOUNCE_BUFFER_COUNT];
++	dma_addr_t phys[DMA_BOUNCE_BUFFER_COUNT];
++	struct scatterlist sgl[DMA_BOUNCE_BUFFER_COUNT];
++};
++
++
++void bcm2835_smi_set_regs_from_settings(struct bcm2835_smi_instance *);
++
++struct smi_settings *bcm2835_smi_get_settings_from_regs(
++	struct bcm2835_smi_instance *inst);
++
++void bcm2835_smi_write_buf(
++	struct bcm2835_smi_instance *inst,
++	const void *buf,
++	size_t n_bytes);
++
++void bcm2835_smi_read_buf(
++	struct bcm2835_smi_instance *inst,
++	void *buf,
++	size_t n_bytes);
++
++void bcm2835_smi_set_address(struct bcm2835_smi_instance *inst,
++	unsigned int address);
++
++ssize_t bcm2835_smi_user_dma(
++	struct bcm2835_smi_instance *inst,
++	enum dma_transfer_direction dma_dir,
++	char __user *user_ptr,
++	size_t count,
++	struct bcm2835_smi_bounce_info **bounce);
++
++struct bcm2835_smi_instance *bcm2835_smi_get(struct device_node *node);
++
++#endif /* __KERNEL__ */
++
++/****************************************************************
++*
++*	Implementation-only declarations
++*
++****************************************************************/
++
++#ifdef BCM2835_SMI_IMPLEMENTATION
++
++/* Clock manager registers for SMI clock: */
++#define CM_SMI_BASE_ADDRESS ((BCM2708_PERI_BASE) + 0x1010b0)
++/* Clock manager "password" to protect registers from spurious writes */
++#define CM_PWD (0x5a << 24)
++
++#define CM_SMI_CTL	0x00
++#define CM_SMI_DIV	0x04
++
++#define CM_SMI_CTL_FLIP (1 << 8)
++#define CM_SMI_CTL_BUSY (1 << 7)
++#define CM_SMI_CTL_KILL (1 << 5)
++#define CM_SMI_CTL_ENAB (1 << 4)
++#define CM_SMI_CTL_SRC_MASK (0xf)
++#define CM_SMI_CTL_SRC_OFFS (0)
++
++#define CM_SMI_DIV_DIVI_MASK (0xf <<  12)
++#define CM_SMI_DIV_DIVI_OFFS (12)
++#define CM_SMI_DIV_DIVF_MASK (0xff << 4)
++#define CM_SMI_DIV_DIVF_OFFS (4)
++
++/* SMI register mapping:*/
++#define SMI_BASE_ADDRESS ((BCM2708_PERI_BASE) + 0x600000)
++
++#define SMICS	0x00	/* control + status register		*/
++#define SMIL	0x04	/* length/count (n external txfers)	*/
++#define SMIA	0x08	/* address register			*/
++#define SMID	0x0c	/* data register			*/
++#define SMIDSR0	0x10	/* device 0 read settings		*/
++#define SMIDSW0	0x14	/* device 0 write settings		*/
++#define SMIDSR1	0x18	/* device 1 read settings		*/
++#define SMIDSW1	0x1c	/* device 1 write settings		*/
++#define SMIDSR2	0x20	/* device 2 read settings		*/
++#define SMIDSW2	0x24	/* device 2 write settings		*/
++#define SMIDSR3	0x28	/* device 3 read settings		*/
++#define SMIDSW3	0x2c	/* device 3 write settings		*/
++#define SMIDC	0x30	/* DMA control registers		*/
++#define SMIDCS	0x34	/* direct control/status register	*/
++#define SMIDA	0x38	/* direct address register		*/
++#define SMIDD	0x3c	/* direct data registers		*/
++#define SMIFD	0x40	/* FIFO debug register			*/
++
++
++
++/* Control and Status register bits:
++ * SMICS_RXF	: RX fifo full: 1 when RX fifo is full
++ * SMICS_TXE	: TX fifo empty: 1 when empty.
++ * SMICS_RXD	: RX fifo contains data: 1 when there is data.
++ * SMICS_TXD	: TX fifo can accept data: 1 when true.
++ * SMICS_RXR	: RX fifo needs reading: 1 when fifo more than 3/4 full, or
++ *		  when "DONE" and fifo not emptied.
++ * SMICS_TXW	: TX fifo needs writing: 1 when less than 1/4 full.
++ * SMICS_AFERR	: AXI FIFO error: 1 when fifo read when empty or written
++ *		  when full. Write 1 to clear.
++ * SMICS_EDREQ	: 1 when external DREQ received.
++ * SMICS_PXLDAT	:  Pixel data:	write 1 to enable pixel transfer modes.
++ * SMICS_SETERR	: 1 if there was an error writing to setup regs (e.g.
++ *		  tx was in progress). Write 1 to clear.
++ * SMICS_PVMODE	: Set to 1 to enable pixel valve mode.
++ * SMICS_INTR	: Set to 1 to enable interrupt on RX.
++ * SMICS_INTT	: Set to 1 to enable interrupt on TX.
++ * SMICS_INTD	: Set to 1 to enable interrupt on DONE condition.
++ * SMICS_TEEN	: Tear effect mode enabled: Programmed transfers will wait
++ *		  for a TE trigger before writing.
++ * SMICS_PAD1	: Padding settings for external transfers. For writes: the
++ *		  number of bytes initially written to  the TX fifo that
++ * SMICS_PAD0	: should be ignored. For reads: the number of bytes that will
++ *		  be read before the data, and should be dropped.
++ * SMICS_WRITE	: Transfer direction: 1 = write to external device, 0 = read
++ * SMICS_CLEAR	: Write 1 to clear the FIFOs.
++ * SMICS_START	: Write 1 to start the programmed transfer.
++ * SMICS_ACTIVE	: Reads as 1 when a programmed transfer is underway.
++ * SMICS_DONE	: Reads as 1 when transfer finished. For RX, not set until
++ *		  FIFO emptied.
++ * SMICS_ENABLE	: Set to 1 to enable the SMI peripheral, 0 to disable.
++ */
++
++#define SMICS_RXF	(1 << 31)
++#define SMICS_TXE	(1 << 30)
++#define SMICS_RXD	(1 << 29)
++#define SMICS_TXD	(1 << 28)
++#define SMICS_RXR	(1 << 27)
++#define SMICS_TXW	(1 << 26)
++#define SMICS_AFERR	(1 << 25)
++#define SMICS_EDREQ	(1 << 15)
++#define SMICS_PXLDAT	(1 << 14)
++#define SMICS_SETERR	(1 << 13)
++#define SMICS_PVMODE	(1 << 12)
++#define SMICS_INTR	(1 << 11)
++#define SMICS_INTT	(1 << 10)
++#define SMICS_INTD	(1 << 9)
++#define SMICS_TEEN	(1 << 8)
++#define SMICS_PAD1	(1 << 7)
++#define SMICS_PAD0	(1 << 6)
++#define SMICS_WRITE	(1 << 5)
++#define SMICS_CLEAR	(1 << 4)
++#define SMICS_START	(1 << 3)
++#define SMICS_ACTIVE	(1 << 2)
++#define SMICS_DONE	(1 << 1)
++#define SMICS_ENABLE	(1 << 0)
++
++/* Address register bits: */
++
++#define SMIA_DEVICE_MASK ((1 << 9) | (1 << 8))
++#define SMIA_DEVICE_OFFS (8)
++#define SMIA_ADDR_MASK (0x3f)	/* bits 5 -> 0 */
++#define SMIA_ADDR_OFFS (0)
++
++/* DMA control register bits:
++ * SMIDC_DMAEN	: DMA enable: set 1: DMA requests will be issued.
++ * SMIDC_DMAP	: DMA passthrough: when set to 0, top two data pins are used by
++ *		  SMI as usual. When set to 1, the top two pins are used for
++ *		  external DREQs: pin 16 read request, 17 write.
++ * SMIDC_PANIC*	: Threshold at which DMA will panic during read/write.
++ * SMIDC_REQ*	: Threshold at which DMA will generate a DREQ.
++ */
++
++#define SMIDC_DMAEN		(1 << 28)
++#define SMIDC_DMAP		(1 << 24)
++#define SMIDC_PANICR_MASK	(0x3f << 18)
++#define SMIDC_PANICR_OFFS	(18)
++#define SMIDC_PANICW_MASK	(0x3f << 12)
++#define SMIDC_PANICW_OFFS	(12)
++#define SMIDC_REQR_MASK		(0x3f << 6)
++#define SMIDC_REQR_OFFS		(6)
++#define SMIDC_REQW_MASK		(0x3f)
++#define SMIDC_REQW_OFFS		(0)
++
++/* Device settings register bits: same for all 4 (or 3?) device register sets.
++ * Device read settings:
++ * SMIDSR_RWIDTH	: Read transfer width. 00 = 8bit, 01 = 16bit,
++ *			  10 = 18bit, 11 = 9bit.
++ * SMIDSR_RSETUP	: Read setup time: number of core cycles between chip
++ *			  select/address and read strobe. Min 1, max 64.
++ * SMIDSR_MODE68	: 1 for System 68 mode (i.e. enable + direction pins,
++ *			  rather than OE + WE pin)
++ * SMIDSR_FSETUP	: If set to 1, setup time only applies to first
++ *			  transfer after address change.
++ * SMIDSR_RHOLD		: Number of core cycles between read strobe going
++ *			  inactive and CS/address going inactive. Min 1, max 64
++ * SMIDSR_RPACEALL	: When set to 1, this device's RPACE value will always
++ *			  be used for the next transaction, even if it is not
++ *			  to this device.
++ * SMIDSR_RPACE		: Number of core cycles spent waiting between CS
++ *			  deassert and start of next transfer. Min 1, max 128
++ * SMIDSR_RDREQ		: 1 = use external DMA request on SD16 to pace reads
++ *			  from device. Must also set DMAP in SMICS.
++ * SMIDSR_RSTROBE	: Number of cycles to assert the read strobe.
++ *			  min 1, max 128.
++ */
++#define SMIDSR_RWIDTH_MASK	((1<<31)|(1<<30))
++#define SMIDSR_RWIDTH_OFFS	(30)
++#define SMIDSR_RSETUP_MASK	(0x3f << 24)
++#define SMIDSR_RSETUP_OFFS	(24)
++#define SMIDSR_MODE68		(1 << 23)
++#define SMIDSR_FSETUP		(1 << 22)
++#define SMIDSR_RHOLD_MASK	(0x3f << 16)
++#define SMIDSR_RHOLD_OFFS	(16)
++#define SMIDSR_RPACEALL		(1 << 15)
++#define SMIDSR_RPACE_MASK	(0x7f << 8)
++#define SMIDSR_RPACE_OFFS	(8)
++#define SMIDSR_RDREQ		(1 << 7)
++#define SMIDSR_RSTROBE_MASK	(0x7f)
++#define SMIDSR_RSTROBE_OFFS	(0)
++
++/* Device write settings:
++ * SMIDSW_WWIDTH	: Write transfer width. 00 = 8bit, 01 = 16bit,
++ *			  10= 18bit, 11 = 9bit.
++ * SMIDSW_WSETUP	: Number of cycles between CS assert and write strobe.
++ *			  Min 1, max 64.
++ * SMIDSW_WFORMAT	: Pixel format of input. 0 = 16bit RGB 565,
++ *			  1 = 32bit RGBA 8888
++ * SMIDSW_WSWAP		: 1 = swap pixel data bits. (Use with SMICS_PXLDAT)
++ * SMIDSW_WHOLD		: Time between WE deassert and CS deassert. 1 to 64
++ * SMIDSW_WPACEALL	: 1: this device's WPACE will be used for the next
++ *			  transfer, regardless of that transfer's device.
++ * SMIDSW_WPACE		: Cycles between CS deassert and next CS assert.
++ *			  Min 1, max 128
++ * SMIDSW_WDREQ		: Use external DREQ on pin 17 to pace writes. DMAP must
++ *			  be set in SMICS.
++ * SMIDSW_WSTROBE	: Number of cycles to assert the write strobe.
++ *			  Min 1, max 128
++ */
++#define SMIDSW_WWIDTH_MASK	 ((1<<31)|(1<<30))
++#define SMIDSW_WWIDTH_OFFS	(30)
++#define SMIDSW_WSETUP_MASK	(0x3f << 24)
++#define SMIDSW_WSETUP_OFFS	(24)
++#define SMIDSW_WFORMAT		(1 << 23)
++#define SMIDSW_WSWAP		(1 << 22)
++#define SMIDSW_WHOLD_MASK	(0x3f << 16)
++#define SMIDSW_WHOLD_OFFS	(16)
++#define SMIDSW_WPACEALL		(1 << 15)
++#define SMIDSW_WPACE_MASK	(0x7f << 8)
++#define SMIDSW_WPACE_OFFS	(8)
++#define SMIDSW_WDREQ		(1 << 7)
++#define SMIDSW_WSTROBE_MASK	 (0x7f)
++#define SMIDSW_WSTROBE_OFFS	 (0)
++
++/* Direct transfer control + status register
++ * SMIDCS_WRITE	: Direction of transfer: 1 -> write, 0 -> read
++ * SMIDCS_DONE	: 1 when a transfer has finished. Write 1 to clear.
++ * SMIDCS_START	: Write 1 to start a transfer, if one is not already underway.
++ * SMIDCE_ENABLE: Write 1 to enable SMI in direct mode.
++ */
++
++#define SMIDCS_WRITE		(1 << 3)
++#define SMIDCS_DONE		(1 << 2)
++#define SMIDCS_START		(1 << 1)
++#define SMIDCS_ENABLE		(1 << 0)
++
++/* Direct transfer address register
++ * SMIDA_DEVICE	: Indicates which of the device settings banks should be used.
++ * SMIDA_ADDR	: The value to be asserted on the address pins.
++ */
++
++#define SMIDA_DEVICE_MASK	((1<<9)|(1<<8))
++#define SMIDA_DEVICE_OFFS	(8)
++#define SMIDA_ADDR_MASK		(0x3f)
++#define SMIDA_ADDR_OFFS		(0)
++
++/* FIFO debug register
++ * SMIFD_FLVL	: The high-tide mark of FIFO count during the most recent txfer
++ * SMIFD_FCNT	: The current FIFO count.
++ */
++#define SMIFD_FLVL_MASK		(0x3f << 8)
++#define SMIFD_FLVL_OFFS		(8)
++#define SMIFD_FCNT_MASK		(0x3f)
++#define SMIFD_FCNT_OFFS		(0)
++
++#endif /* BCM2835_SMI_IMPLEMENTATION */
++
++#endif /* BCM2835_SMI_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0051-Add-Chris-Boot-s-i2c-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0051-Add-Chris-Boot-s-i2c-driver.patch
new file mode 100644
index 0000000000..8d97412bcc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0051-Add-Chris-Boot-s-i2c-driver.patch
@@ -0,0 +1,660 @@
+From 8e6989f4270ffc86166cbab697b1f539f4cdeb03 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 17 Jun 2015 15:44:08 +0100
+Subject: [PATCH] Add Chris Boot's i2c driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+i2c-bcm2708: fixed baudrate
+
+Fixed issue where the wrong CDIV value was set for baudrates below 3815 Hz (for 250MHz bus clock).
+In that case the computed CDIV value was more than 0xffff. However the CDIV register width is only 16 bits.
+This resulted in incorrect setting of CDIV and higher baudrate than intended.
+Example: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0x1704 -> 42430Hz
+After correction: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0xffff -> 3815Hz
+The correct baudrate is shown in the log after the cdiv > 0xffff correction.
+
+Perform I2C combined transactions when possible
+
+Perform I2C combined transactions whenever possible, within the
+restrictions of the Broadcomm Serial Controller.
+
+Disable DONE interrupt during TA poll
+
+Prevent interrupt from being triggered if poll is missed and transfer
+starts and finishes.
+
+i2c: Make combined transactions optional and disabled by default
+
+i2c: bcm2708: add device tree support
+
+Add DT support to driver and add to .dtsi file.
+Setup pins in .dts file.
+i2c is disabled by default.
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+
+bcm2708: don't register i2c controllers when using DT
+
+The devices for the i2c controllers are in the Device Tree.
+Only register devices when not using DT.
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+
+I2C: Only register the I2C device for the current board revision
+
+i2c_bcm2708: Fix clock reference counting
+
+Fix grabbing lock from atomic context in i2c driver
+
+2 main changes:
+- check for timeouts in the bcm2708_bsc_setup function as indicated by this comment:
+      /* poll for transfer start bit (should only take 1-20 polls) */
+  This implies that the setup function can now fail so account for this everywhere it's called
+- Removed the clk_get_rate call from inside the setup function as it locks a mutex and that's not ok since we call it from under a spin lock.
+
+i2c-bcm2708: When using DT, leave the GPIO setup to pinctrl
+
+i2c-bcm2708: Increase timeouts to allow larger transfers
+
+Use the timeout value provided by the I2C_TIMEOUT ioctl when waiting
+for completion. The default timeout is 1 second.
+
+See: https://github.com/raspberrypi/linux/issues/260
+
+i2c-bcm2708/BCM270X_DT: Add support for I2C2
+
+The third I2C bus (I2C2) is normally reserved for HDMI use. Careless
+use of this bus can break an attached display - use with caution.
+
+It is recommended to disable accesses by VideoCore by setting
+hdmi_ignore_edid=1 or hdmi_edid_file=1 in config.txt.
+
+The interface is disabled by default - enable using the
+i2c2_iknowwhatimdoing DT parameter.
+
+bcm2708-spi: Don't use static pin configuration with DT
+
+Also remove superfluous error checking - the SPI framework ensures the
+validity of the chip_select value.
+
+i2c-bcm2708: Remove non-DT support
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+Set the BSC_CLKT clock streching timeout to 35ms as per SMBus specs.
+
+Fixes i2c_bcm2708: Write to FIFO correctly - v2 (#1574)
+
+* i2c: fix i2c_bcm2708: Clear FIFO before sending data
+
+Make sure FIFO gets cleared before trying to send
+data in case of a repeated start (COMBINED=Y).
+
+* i2c: fix i2c_bcm2708: Only write to FIFO when not full
+
+Check if FIFO can accept data before writing.
+To avoid a peripheral read on the last iteration of a loop,
+both bcm2708_bsc_fifo_fill and ~drain are changed as well.
+---
+ drivers/i2c/busses/Kconfig       |  19 ++
+ drivers/i2c/busses/Makefile      |   2 +
+ drivers/i2c/busses/i2c-bcm2708.c | 512 +++++++++++++++++++++++++++++++
+ 3 files changed, 533 insertions(+)
+ create mode 100644 drivers/i2c/busses/i2c-bcm2708.c
+
+--- a/drivers/i2c/busses/Kconfig
++++ b/drivers/i2c/busses/Kconfig
+@@ -9,6 +9,25 @@ menu "I2C Hardware Bus support"
+ comment "PC SMBus host controller drivers"
+ 	depends on PCI
+ 
++config I2C_BCM2708
++	tristate "BCM2708 BSC"
++	depends on ARCH_BCM2835
++	help
++	  Enabling this option will add BSC (Broadcom Serial Controller)
++	  support for the BCM2708. BSC is a Broadcom proprietary bus compatible
++	  with I2C/TWI/SMBus.
++
++config I2C_BCM2708_BAUDRATE
++	prompt "BCM2708 I2C baudrate"
++	depends on I2C_BCM2708
++	int
++	default 100000
++	help
++	  Set the I2C baudrate. This will alter the default value. A
++	  different baudrate can be set by using a module parameter as well. If
++	  no parameter is provided when loading, this is the value that will be
++	  used.
++
+ config I2C_ALI1535
+ 	tristate "ALI 1535"
+ 	depends on PCI
+--- a/drivers/i2c/busses/Makefile
++++ b/drivers/i2c/busses/Makefile
+@@ -3,6 +3,8 @@
+ # Makefile for the i2c bus drivers.
+ #
+ 
++obj-$(CONFIG_I2C_BCM2708)	+= i2c-bcm2708.o
++
+ # ACPI drivers
+ obj-$(CONFIG_I2C_SCMI)		+= i2c-scmi.o
+ 
+--- /dev/null
++++ b/drivers/i2c/busses/i2c-bcm2708.c
+@@ -0,0 +1,512 @@
++/*
++ * Driver for Broadcom BCM2708 BSC Controllers
++ *
++ * Copyright (C) 2012 Chris Boot & Frank Buss
++ *
++ * This driver is inspired by:
++ * i2c-ocores.c, by Peter Korsgaard <jacmet@sunsite.dk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/spinlock.h>
++#include <linux/clk.h>
++#include <linux/err.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++#include <linux/slab.h>
++#include <linux/i2c.h>
++#include <linux/interrupt.h>
++#include <linux/sched.h>
++#include <linux/wait.h>
++
++/* BSC register offsets */
++#define BSC_C			0x00
++#define BSC_S			0x04
++#define BSC_DLEN		0x08
++#define BSC_A			0x0c
++#define BSC_FIFO		0x10
++#define BSC_DIV			0x14
++#define BSC_DEL			0x18
++#define BSC_CLKT		0x1c
++
++/* Bitfields in BSC_C */
++#define BSC_C_I2CEN		0x00008000
++#define BSC_C_INTR		0x00000400
++#define BSC_C_INTT		0x00000200
++#define BSC_C_INTD		0x00000100
++#define BSC_C_ST		0x00000080
++#define BSC_C_CLEAR_1		0x00000020
++#define BSC_C_CLEAR_2		0x00000010
++#define BSC_C_READ		0x00000001
++
++/* Bitfields in BSC_S */
++#define BSC_S_CLKT		0x00000200
++#define BSC_S_ERR		0x00000100
++#define BSC_S_RXF		0x00000080
++#define BSC_S_TXE		0x00000040
++#define BSC_S_RXD		0x00000020
++#define BSC_S_TXD		0x00000010
++#define BSC_S_RXR		0x00000008
++#define BSC_S_TXW		0x00000004
++#define BSC_S_DONE		0x00000002
++#define BSC_S_TA		0x00000001
++
++#define I2C_WAIT_LOOP_COUNT	200
++
++#define DRV_NAME		"bcm2708_i2c"
++
++static unsigned int baudrate;
++module_param(baudrate, uint, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
++MODULE_PARM_DESC(baudrate, "The I2C baudrate");
++
++static bool combined = false;
++module_param(combined, bool, 0644);
++MODULE_PARM_DESC(combined, "Use combined transactions");
++
++struct bcm2708_i2c {
++	struct i2c_adapter adapter;
++
++	spinlock_t lock;
++	void __iomem *base;
++	int irq;
++	struct clk *clk;
++	u32 cdiv;
++	u32 clk_tout;
++
++	struct completion done;
++
++	struct i2c_msg *msg;
++	int pos;
++	int nmsgs;
++	bool error;
++};
++
++static inline u32 bcm2708_rd(struct bcm2708_i2c *bi, unsigned reg)
++{
++	return readl(bi->base + reg);
++}
++
++static inline void bcm2708_wr(struct bcm2708_i2c *bi, unsigned reg, u32 val)
++{
++	writel(val, bi->base + reg);
++}
++
++static inline void bcm2708_bsc_reset(struct bcm2708_i2c *bi)
++{
++	bcm2708_wr(bi, BSC_C, 0);
++	bcm2708_wr(bi, BSC_S, BSC_S_CLKT | BSC_S_ERR | BSC_S_DONE);
++}
++
++static inline void bcm2708_bsc_fifo_drain(struct bcm2708_i2c *bi)
++{
++	while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_RXD))
++		bi->msg->buf[bi->pos++] = bcm2708_rd(bi, BSC_FIFO);
++}
++
++static inline void bcm2708_bsc_fifo_fill(struct bcm2708_i2c *bi)
++{
++	while ((bi->pos < bi->msg->len) && (bcm2708_rd(bi, BSC_S) & BSC_S_TXD))
++		bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
++}
++
++static inline int bcm2708_bsc_setup(struct bcm2708_i2c *bi)
++{
++	u32 cdiv, s, clk_tout;
++	u32 c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_ST | BSC_C_CLEAR_1;
++	int wait_loops = I2C_WAIT_LOOP_COUNT;
++
++	/* Can't call clk_get_rate as it locks a mutex and here we are spinlocked.
++	 * Use the value that we cached in the probe.
++	 */
++	cdiv = bi->cdiv;
++	clk_tout = bi->clk_tout;
++
++	if (bi->msg->flags & I2C_M_RD)
++		c |= BSC_C_INTR | BSC_C_READ;
++	else
++		c |= BSC_C_INTT;
++
++	bcm2708_wr(bi, BSC_CLKT, clk_tout);
++	bcm2708_wr(bi, BSC_DIV, cdiv);
++	bcm2708_wr(bi, BSC_A, bi->msg->addr);
++	bcm2708_wr(bi, BSC_DLEN, bi->msg->len);
++	if (combined)
++	{
++		/* Do the next two messages meet combined transaction criteria?
++		   - Current message is a write, next message is a read
++		   - Both messages to same slave address
++		   - Write message can fit inside FIFO (16 bytes or less) */
++		if ( (bi->nmsgs > 1) &&
++			!(bi->msg[0].flags & I2C_M_RD) && (bi->msg[1].flags & I2C_M_RD) &&
++			 (bi->msg[0].addr == bi->msg[1].addr) && (bi->msg[0].len <= 16)) {
++
++			/* Clear FIFO */
++			bcm2708_wr(bi, BSC_C, BSC_C_CLEAR_1);
++
++			/* Fill FIFO with entire write message (16 byte FIFO) */
++			while (bi->pos < bi->msg->len) {
++				bcm2708_wr(bi, BSC_FIFO, bi->msg->buf[bi->pos++]);
++			}
++			/* Start write transfer (no interrupts, don't clear FIFO) */
++			bcm2708_wr(bi, BSC_C, BSC_C_I2CEN | BSC_C_ST);
++
++			/* poll for transfer start bit (should only take 1-20 polls) */
++			do {
++				s = bcm2708_rd(bi, BSC_S);
++			} while (!(s & (BSC_S_TA | BSC_S_ERR | BSC_S_CLKT | BSC_S_DONE)) && --wait_loops >= 0);
++
++			/* did we time out or some error occured? */
++			if (wait_loops < 0 || (s & (BSC_S_ERR | BSC_S_CLKT))) {
++				return -1;
++			}
++
++			/* Send next read message before the write transfer finishes. */
++			bi->nmsgs--;
++			bi->msg++;
++			bi->pos = 0;
++			bcm2708_wr(bi, BSC_DLEN, bi->msg->len);
++			c = BSC_C_I2CEN | BSC_C_INTD | BSC_C_INTR | BSC_C_ST | BSC_C_READ;
++		}
++	}
++	bcm2708_wr(bi, BSC_C, c);
++
++	return 0;
++}
++
++static irqreturn_t bcm2708_i2c_interrupt(int irq, void *dev_id)
++{
++	struct bcm2708_i2c *bi = dev_id;
++	bool handled = true;
++	u32 s;
++	int ret;
++
++	spin_lock(&bi->lock);
++
++	/* we may see camera interrupts on the "other" I2C channel
++		   Just return if we've not sent anything */
++	if (!bi->nmsgs || !bi->msg) {
++		goto early_exit;
++	}
++
++	s = bcm2708_rd(bi, BSC_S);
++
++	if (s & (BSC_S_CLKT | BSC_S_ERR)) {
++		bcm2708_bsc_reset(bi);
++		bi->error = true;
++
++		bi->msg = 0; /* to inform the that all work is done */
++		bi->nmsgs = 0;
++		/* wake up our bh */
++		complete(&bi->done);
++	} else if (s & BSC_S_DONE) {
++		bi->nmsgs--;
++
++		if (bi->msg->flags & I2C_M_RD) {
++			bcm2708_bsc_fifo_drain(bi);
++		}
++
++		bcm2708_bsc_reset(bi);
++
++		if (bi->nmsgs) {
++			/* advance to next message */
++			bi->msg++;
++			bi->pos = 0;
++			ret = bcm2708_bsc_setup(bi);
++			if (ret < 0) {
++				bcm2708_bsc_reset(bi);
++				bi->error = true;
++				bi->msg = 0; /* to inform the that all work is done */
++				bi->nmsgs = 0;
++				/* wake up our bh */
++				complete(&bi->done);
++				goto early_exit;
++			}
++		} else {
++			bi->msg = 0; /* to inform the that all work is done */
++			bi->nmsgs = 0;
++			/* wake up our bh */
++			complete(&bi->done);
++		}
++	} else if (s & BSC_S_TXW) {
++		bcm2708_bsc_fifo_fill(bi);
++	} else if (s & BSC_S_RXR) {
++		bcm2708_bsc_fifo_drain(bi);
++	} else {
++		handled = false;
++	}
++
++early_exit:
++	spin_unlock(&bi->lock);
++
++	return handled ? IRQ_HANDLED : IRQ_NONE;
++}
++
++static int bcm2708_i2c_master_xfer(struct i2c_adapter *adap,
++	struct i2c_msg *msgs, int num)
++{
++	struct bcm2708_i2c *bi = adap->algo_data;
++	unsigned long flags;
++	int ret;
++
++	spin_lock_irqsave(&bi->lock, flags);
++
++	reinit_completion(&bi->done);
++	bi->msg = msgs;
++	bi->pos = 0;
++	bi->nmsgs = num;
++	bi->error = false;
++
++	ret = bcm2708_bsc_setup(bi);
++
++	spin_unlock_irqrestore(&bi->lock, flags);
++
++	/* check the result of the setup */
++	if (ret < 0)
++	{
++		dev_err(&adap->dev, "transfer setup timed out\n");
++		goto error_timeout;
++	}
++
++	ret = wait_for_completion_timeout(&bi->done, adap->timeout);
++	if (ret == 0) {
++		dev_err(&adap->dev, "transfer timed out\n");
++		goto error_timeout;
++	}
++
++	ret = bi->error ? -EIO : num;
++	return ret;
++
++error_timeout:
++	spin_lock_irqsave(&bi->lock, flags);
++	bcm2708_bsc_reset(bi);
++	bi->msg = 0; /* to inform the interrupt handler that there's nothing else to be done */
++	bi->nmsgs = 0;
++	spin_unlock_irqrestore(&bi->lock, flags);
++	return -ETIMEDOUT;
++}
++
++static u32 bcm2708_i2c_functionality(struct i2c_adapter *adap)
++{
++	return I2C_FUNC_I2C | /*I2C_FUNC_10BIT_ADDR |*/ I2C_FUNC_SMBUS_EMUL;
++}
++
++static struct i2c_algorithm bcm2708_i2c_algorithm = {
++	.master_xfer = bcm2708_i2c_master_xfer,
++	.functionality = bcm2708_i2c_functionality,
++};
++
++static int bcm2708_i2c_probe(struct platform_device *pdev)
++{
++	struct resource *regs;
++	int irq, err = -ENOMEM;
++	struct clk *clk;
++	struct bcm2708_i2c *bi;
++	struct i2c_adapter *adap;
++	unsigned long bus_hz;
++	u32 cdiv, clk_tout;
++	u32 baud;
++
++	baud = CONFIG_I2C_BCM2708_BAUDRATE;
++
++	if (pdev->dev.of_node) {
++		u32 bus_clk_rate;
++		pdev->id = of_alias_get_id(pdev->dev.of_node, "i2c");
++		if (pdev->id < 0) {
++			dev_err(&pdev->dev, "alias is missing\n");
++			return -EINVAL;
++		}
++		if (!of_property_read_u32(pdev->dev.of_node,
++					"clock-frequency", &bus_clk_rate))
++			baud = bus_clk_rate;
++		else
++			dev_warn(&pdev->dev,
++				"Could not read clock-frequency property\n");
++	}
++
++	if (baudrate)
++		baud = baudrate;
++
++	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!regs) {
++		dev_err(&pdev->dev, "could not get IO memory\n");
++		return -ENXIO;
++	}
++
++	irq = platform_get_irq(pdev, 0);
++	if (irq < 0) {
++		dev_err(&pdev->dev, "could not get IRQ\n");
++		return irq;
++	}
++
++	clk = clk_get(&pdev->dev, NULL);
++	if (IS_ERR(clk)) {
++		dev_err(&pdev->dev, "could not find clk: %ld\n", PTR_ERR(clk));
++		return PTR_ERR(clk);
++	}
++
++	err = clk_prepare_enable(clk);
++	if (err) {
++		dev_err(&pdev->dev, "could not enable clk: %d\n", err);
++		goto out_clk_put;
++	}
++
++	bi = kzalloc(sizeof(*bi), GFP_KERNEL);
++	if (!bi)
++		goto out_clk_disable;
++
++	platform_set_drvdata(pdev, bi);
++
++	adap = &bi->adapter;
++	adap->class = I2C_CLASS_HWMON | I2C_CLASS_DDC;
++	adap->algo = &bcm2708_i2c_algorithm;
++	adap->algo_data = bi;
++	adap->dev.parent = &pdev->dev;
++	adap->nr = pdev->id;
++	strlcpy(adap->name, dev_name(&pdev->dev), sizeof(adap->name));
++	adap->dev.of_node = pdev->dev.of_node;
++
++	switch (pdev->id) {
++	case 0:
++		adap->class = I2C_CLASS_HWMON;
++		break;
++	case 1:
++		adap->class = I2C_CLASS_DDC;
++		break;
++	case 2:
++		adap->class = I2C_CLASS_DDC;
++		break;
++	default:
++		dev_err(&pdev->dev, "can only bind to BSC 0, 1 or 2\n");
++		err = -ENXIO;
++		goto out_free_bi;
++	}
++
++	spin_lock_init(&bi->lock);
++	init_completion(&bi->done);
++
++	bi->base = ioremap(regs->start, resource_size(regs));
++	if (!bi->base) {
++		dev_err(&pdev->dev, "could not remap memory\n");
++		goto out_free_bi;
++	}
++
++	bi->irq = irq;
++	bi->clk = clk;
++
++	err = request_irq(irq, bcm2708_i2c_interrupt, IRQF_SHARED,
++			dev_name(&pdev->dev), bi);
++	if (err) {
++		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
++		goto out_iounmap;
++	}
++
++	bcm2708_bsc_reset(bi);
++
++	err = i2c_add_numbered_adapter(adap);
++	if (err < 0) {
++		dev_err(&pdev->dev, "could not add I2C adapter: %d\n", err);
++		goto out_free_irq;
++	}
++
++	bus_hz = clk_get_rate(bi->clk);
++	cdiv = bus_hz / baud;
++	if (cdiv > 0xffff) {
++		cdiv = 0xffff;
++		baud = bus_hz / cdiv;
++	}
++
++	clk_tout = 35/1000*baud; //35ms timeout as per SMBus specs.
++	if (clk_tout > 0xffff)
++		clk_tout = 0xffff;
++	
++	bi->cdiv = cdiv;
++	bi->clk_tout = clk_tout;
++
++	dev_info(&pdev->dev, "BSC%d Controller at 0x%08lx (irq %d) (baudrate %d)\n",
++		pdev->id, (unsigned long)regs->start, irq, baud);
++
++	return 0;
++
++out_free_irq:
++	free_irq(bi->irq, bi);
++out_iounmap:
++	iounmap(bi->base);
++out_free_bi:
++	kfree(bi);
++out_clk_disable:
++	clk_disable_unprepare(clk);
++out_clk_put:
++	clk_put(clk);
++	return err;
++}
++
++static int bcm2708_i2c_remove(struct platform_device *pdev)
++{
++	struct bcm2708_i2c *bi = platform_get_drvdata(pdev);
++
++	platform_set_drvdata(pdev, NULL);
++
++	i2c_del_adapter(&bi->adapter);
++	free_irq(bi->irq, bi);
++	iounmap(bi->base);
++	clk_disable_unprepare(bi->clk);
++	clk_put(bi->clk);
++	kfree(bi);
++
++	return 0;
++}
++
++static const struct of_device_id bcm2708_i2c_of_match[] = {
++        { .compatible = "brcm,bcm2708-i2c" },
++        {},
++};
++MODULE_DEVICE_TABLE(of, bcm2708_i2c_of_match);
++
++static struct platform_driver bcm2708_i2c_driver = {
++	.driver		= {
++		.name	= DRV_NAME,
++		.owner	= THIS_MODULE,
++		.of_match_table = bcm2708_i2c_of_match,
++	},
++	.probe		= bcm2708_i2c_probe,
++	.remove		= bcm2708_i2c_remove,
++};
++
++// module_platform_driver(bcm2708_i2c_driver);
++
++
++static int __init bcm2708_i2c_init(void)
++{
++	return platform_driver_register(&bcm2708_i2c_driver);
++}
++
++static void __exit bcm2708_i2c_exit(void)
++{
++	platform_driver_unregister(&bcm2708_i2c_driver);
++}
++
++module_init(bcm2708_i2c_init);
++module_exit(bcm2708_i2c_exit);
++
++
++
++MODULE_DESCRIPTION("BSC controller driver for Broadcom BCM2708");
++MODULE_AUTHOR("Chris Boot <bootc@bootc.net>");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0052-char-broadcom-Add-vcio-module.patch b/target/linux/bcm27xx/patches-5.10/950-0052-char-broadcom-Add-vcio-module.patch
new file mode 100644
index 0000000000..9d3260b121
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0052-char-broadcom-Add-vcio-module.patch
@@ -0,0 +1,254 @@
+From ee17bae9c9f8fbe02644f13c01c6dd06e9c4bbc3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 26 Jun 2015 14:27:06 +0200
+Subject: [PATCH] char: broadcom: Add vcio module
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add module for accessing the mailbox property channel through
+/dev/vcio. Was previously in bcm2708-vcio.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+char: vcio: Add compat ioctl handling
+
+There was no compat ioctl handler, so 32 bit userspace on a
+64 bit kernel failed as IOCTL_MBOX_PROPERTY used the size
+of char*.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+char: vcio: Fail probe if rpi_firmware is not found.
+
+Device Tree is now the only supported config mechanism, therefore
+uncomment the block of code that fails the probe if the
+firmware node can't be found.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/char/broadcom/Kconfig  |   6 +
+ drivers/char/broadcom/Makefile |   1 +
+ drivers/char/broadcom/vcio.c   | 194 +++++++++++++++++++++++++++++++++
+ 3 files changed, 201 insertions(+)
+ create mode 100644 drivers/char/broadcom/vcio.c
+
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -15,6 +15,12 @@ config BCM2708_VCMEM
+         help
+           Helper for videocore memory access and total size allocation.
+ 
++config BCM_VCIO
++	tristate "Mailbox userspace access"
++	depends on BCM2835_MBOX
++	help
++	  Gives access to the mailbox property channel from userspace.
++
+ endif
+ 
+ config BCM2835_DEVGPIOMEM
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -1,3 +1,4 @@
+ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
++obj-$(CONFIG_BCM_VCIO)		+= vcio.o
+ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
+ obj-$(CONFIG_BCM2835_SMI_DEV)	+= bcm2835_smi_dev.o
+--- /dev/null
++++ b/drivers/char/broadcom/vcio.c
+@@ -0,0 +1,194 @@
++/*
++ *  Copyright (C) 2010 Broadcom
++ *  Copyright (C) 2015 Noralf Trønnes
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
++
++#include <linux/cdev.h>
++#include <linux/device.h>
++#include <linux/fs.h>
++#include <linux/init.h>
++#include <linux/ioctl.h>
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define MBOX_CHAN_PROPERTY 8
++
++#define VCIO_IOC_MAGIC 100
++#define IOCTL_MBOX_PROPERTY _IOWR(VCIO_IOC_MAGIC, 0, char *)
++#ifdef CONFIG_COMPAT
++#define IOCTL_MBOX_PROPERTY32 _IOWR(VCIO_IOC_MAGIC, 0, compat_uptr_t)
++#endif
++
++static struct {
++	dev_t devt;
++	struct cdev cdev;
++	struct class *class;
++	struct rpi_firmware *fw;
++} vcio;
++
++static int vcio_user_property_list(void *user)
++{
++	u32 *buf, size;
++	int ret;
++
++	/* The first 32-bit is the size of the buffer */
++	if (copy_from_user(&size, user, sizeof(size)))
++		return -EFAULT;
++
++	buf = kmalloc(size, GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	if (copy_from_user(buf, user, size)) {
++		kfree(buf);
++		return -EFAULT;
++	}
++
++	/* Strip off protocol encapsulation */
++	ret = rpi_firmware_property_list(vcio.fw, &buf[2], size - 12);
++	if (ret) {
++		kfree(buf);
++		return ret;
++	}
++
++	buf[1] = RPI_FIRMWARE_STATUS_SUCCESS;
++	if (copy_to_user(user, buf, size))
++		ret = -EFAULT;
++
++	kfree(buf);
++
++	return ret;
++}
++
++static int vcio_device_open(struct inode *inode, struct file *file)
++{
++	try_module_get(THIS_MODULE);
++
++	return 0;
++}
++
++static int vcio_device_release(struct inode *inode, struct file *file)
++{
++	module_put(THIS_MODULE);
++
++	return 0;
++}
++
++static long vcio_device_ioctl(struct file *file, unsigned int ioctl_num,
++			      unsigned long ioctl_param)
++{
++	switch (ioctl_num) {
++	case IOCTL_MBOX_PROPERTY:
++		return vcio_user_property_list((void *)ioctl_param);
++	default:
++		pr_err("unknown ioctl: %x\n", ioctl_num);
++		return -EINVAL;
++	}
++}
++
++#ifdef CONFIG_COMPAT
++static long vcio_device_compat_ioctl(struct file *file, unsigned int ioctl_num,
++				     unsigned long ioctl_param)
++{
++	switch (ioctl_num) {
++	case IOCTL_MBOX_PROPERTY32:
++		return vcio_user_property_list(compat_ptr(ioctl_param));
++	default:
++		pr_err("unknown ioctl: %x\n", ioctl_num);
++		return -EINVAL;
++	}
++}
++#endif
++
++const struct file_operations vcio_fops = {
++	.unlocked_ioctl = vcio_device_ioctl,
++#ifdef CONFIG_COMPAT
++	.compat_ioctl = vcio_device_compat_ioctl,
++#endif
++	.open = vcio_device_open,
++	.release = vcio_device_release,
++};
++
++static int __init vcio_init(void)
++{
++	struct device_node *np;
++	static struct device *dev;
++	int ret;
++
++	np = of_find_compatible_node(NULL, NULL,
++				     "raspberrypi,bcm2835-firmware");
++	if (!of_device_is_available(np))
++		return -ENODEV;
++
++	vcio.fw = rpi_firmware_get(np);
++	if (!vcio.fw)
++		return -ENODEV;
++
++	ret = alloc_chrdev_region(&vcio.devt, 0, 1, "vcio");
++	if (ret) {
++		pr_err("failed to allocate device number\n");
++		return ret;
++	}
++
++	cdev_init(&vcio.cdev, &vcio_fops);
++	vcio.cdev.owner = THIS_MODULE;
++	ret = cdev_add(&vcio.cdev, vcio.devt, 1);
++	if (ret) {
++		pr_err("failed to register device\n");
++		goto err_unregister_chardev;
++	}
++
++	/*
++	 * Create sysfs entries
++	 * 'bcm2708_vcio' is used for backwards compatibility so we don't break
++	 * userspace. Raspian has a udev rule that changes the permissions.
++	 */
++	vcio.class = class_create(THIS_MODULE, "bcm2708_vcio");
++	if (IS_ERR(vcio.class)) {
++		ret = PTR_ERR(vcio.class);
++		pr_err("failed to create class\n");
++		goto err_cdev_del;
++	}
++
++	dev = device_create(vcio.class, NULL, vcio.devt, NULL, "vcio");
++	if (IS_ERR(dev)) {
++		ret = PTR_ERR(dev);
++		pr_err("failed to create device\n");
++		goto err_class_destroy;
++	}
++
++	return 0;
++
++err_class_destroy:
++	class_destroy(vcio.class);
++err_cdev_del:
++	cdev_del(&vcio.cdev);
++err_unregister_chardev:
++	unregister_chrdev_region(vcio.devt, 1);
++
++	return ret;
++}
++module_init(vcio_init);
++
++static void __exit vcio_exit(void)
++{
++	device_destroy(vcio.class, vcio.devt);
++	class_destroy(vcio.class);
++	cdev_del(&vcio.cdev);
++	unregister_chrdev_region(vcio.devt, 1);
++}
++module_exit(vcio_exit);
++
++MODULE_AUTHOR("Gray Girling");
++MODULE_AUTHOR("Noralf Trønnes");
++MODULE_DESCRIPTION("Mailbox userspace access");
++MODULE_LICENSE("GPL");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0053-firmware-bcm2835-Support-ARCH_BCM270x.patch b/target/linux/bcm27xx/patches-5.10/950-0053-firmware-bcm2835-Support-ARCH_BCM270x.patch
new file mode 100644
index 0000000000..08d1e2af2d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0053-firmware-bcm2835-Support-ARCH_BCM270x.patch
@@ -0,0 +1,83 @@
+From 410ae9727ad520a140b88c7151e0432d58516bc3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 26 Jun 2015 14:25:01 +0200
+Subject: [PATCH] firmware: bcm2835: Support ARCH_BCM270x
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Support booting without Device Tree.
+Turn on USB power.
+Load driver early because of lacking support for deferred probing
+in many drivers.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+firmware: bcm2835: Don't turn on USB power
+
+The raspberrypi-power driver is now used to turn on USB power.
+
+This partly reverts commit:
+firmware: bcm2835: Support ARCH_BCM270x
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/firmware/raspberrypi.c | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -29,6 +29,8 @@ struct rpi_firmware {
+ 	u32 enabled;
+ };
+ 
++static struct platform_device *g_pdev;
++
+ static DEFINE_MUTEX(transaction_lock);
+ 
+ static void response_callback(struct mbox_client *cl, void *msg)
+@@ -249,6 +251,7 @@ static int rpi_firmware_probe(struct pla
+ 	init_completion(&fw->c);
+ 
+ 	platform_set_drvdata(pdev, fw);
++	g_pdev = pdev;
+ 
+ 	rpi_firmware_print_firmware_revision(fw);
+ 	rpi_register_hwmon_driver(dev, fw);
+@@ -276,6 +279,7 @@ static int rpi_firmware_remove(struct pl
+ 	platform_device_unregister(rpi_clk);
+ 	rpi_clk = NULL;
+ 	mbox_free_channel(fw->chan);
++	g_pdev = NULL;
+ 
+ 	return 0;
+ }
+@@ -288,7 +292,7 @@ static int rpi_firmware_remove(struct pl
+  */
+ struct rpi_firmware *rpi_firmware_get(struct device_node *firmware_node)
+ {
+-	struct platform_device *pdev = of_find_device_by_node(firmware_node);
++	struct platform_device *pdev = g_pdev;
+ 
+ 	if (!pdev)
+ 		return NULL;
+@@ -312,7 +316,18 @@ static struct platform_driver rpi_firmwa
+ 	.shutdown	= rpi_firmware_shutdown,
+ 	.remove		= rpi_firmware_remove,
+ };
+-module_platform_driver(rpi_firmware_driver);
++
++static int __init rpi_firmware_init(void)
++{
++	return platform_driver_register(&rpi_firmware_driver);
++}
++subsys_initcall(rpi_firmware_init);
++
++static void __init rpi_firmware_exit(void)
++{
++	platform_driver_unregister(&rpi_firmware_driver);
++}
++module_exit(rpi_firmware_exit);
+ 
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("Raspberry Pi firmware driver");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0054-BCM2708-Add-core-Device-Tree-support.patch b/target/linux/bcm27xx/patches-5.10/950-0054-BCM2708-Add-core-Device-Tree-support.patch
new file mode 100644
index 0000000000..a103e04b38
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0054-BCM2708-Add-core-Device-Tree-support.patch
@@ -0,0 +1,26485 @@
+From 81589b5e28022d0a4738981f9e5ffb9fadcfaa5b Mon Sep 17 00:00:00 2001
+From: notro <notro@tronnes.org>
+Date: Wed, 9 Jul 2014 14:46:08 +0200
+Subject: [PATCH] BCM2708: Add core Device Tree support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add the bare minimum needed to boot BCM2708 from a Device Tree.
+
+Signed-off-by: Noralf Tronnes <notro@tronnes.org>
+
+BCM2708: DT: change 'axi' nodename to 'soc'
+
+Change DT node named 'axi' to 'soc' so it matches ARCH_BCM2835.
+The VC4 bootloader fills in certain properties in the 'axi' subtree,
+but since this is part of an upstreaming effort, the name is changed.
+
+Signed-off-by: Noralf Tronnes notro@tronnes.org
+
+BCM2708_DT: Correct length of the peripheral space
+
+Use dts-dirs feature for overlays.
+
+The kernel makefiles have a dts-dirs target that is for vendor subdirectories.
+
+Using this fixes the install_dtbs target, which previously did not install the overlays.
+
+BCM270X_DT: configure I2S DMA channels
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+BCM270X_DT: switch to bcm2835-i2s
+
+I2S soundcard drivers with proper devicetree support (i.e. not linking
+to the cpu_dai/platform via name but to cpu/platform via of_node)
+will work out of the box without any modifications.
+
+When the kernel is compiled without devicetree support the platform
+code will instantiate the bcm2708-i2s driver and I2S soundcard drivers
+will link to it via name, as before.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+SDIO-overlay: add poll_once-boolean parameter
+
+Add paramter to toggle sdio-device-polling
+done every second or once at boot-time.
+
+Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>
+
+BCM270X_DT: Make mmc overlay compatible with current firmware
+
+The original DT overlay logic followed a merge-then-patch procedure,
+i.e. parameters are applied to the loaded overlay before the overlay
+is merged into the base DTB. This sequence has been changed to
+patch-then-merge, in order to support parameterised node names, and
+to protect against bad overlays. As a result, overrides (parameters)
+must only target labels in the overlay, but the overlay can obviously target nodes in the base DTB.
+
+mmc-overlay.dts (that switches back to the original mmc sdcard
+driver) is the only overlay violating that rule, and this patch
+fixes it.
+
+bcm270x_dt: Use the sdhost MMC controller by default
+
+The "mmc" overlay reverts to using the other controller.
+
+squash: Add cprman to dt
+
+BCM270X_DT: Use clk_core for I2C interfaces
+
+BCM270X_DT: Use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi
+
+The mainline Device Tree files are quite close to downstream now.
+Let's use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi as base files
+for our dts files.
+
+Mainline dts files are based on these files:
+
+          bcm2835-rpi.dtsi
+  bcm2835.dtsi    bcm2836.dtsi
+          bcm283x.dtsi
+
+Current downstream are based on these:
+
+  bcm2708.dtsi    bcm2709.dtsi    bcm2710.dtsi
+             bcm2708_common.dtsi
+
+This patch introduces this dependency:
+
+  bcm2708.dtsi    bcm2709.dtsi
+          bcm2708-rpi.dtsi
+          bcm270x.dtsi
+  bcm2835.dtsi    bcm2836.dtsi
+          bcm283x.dtsi
+
+And:
+          bcm2710.dtsi
+          bcm2708-rpi.dtsi
+          bcm270x.dtsi
+          bcm283x.dtsi
+
+bcm270x.dtsi contains the downstream bcm283x.dtsi diff.
+bcm2708-rpi.dtsi is the downstream version of bcm2835-rpi.dtsi.
+
+Other changes:
+- The led node has moved from /soc/leds to /leds. This is not a problem
+  since the label is used to reference it.
+- The clk_osc reg property changes from 6 to 3.
+- The gpu nodes has their interrupt property set in the base file.
+- the clocks label does not point to the /clocks node anymore, but
+  points to the cprman node. This is not a problem since the overlays
+  that use the clock node refer to it directly: target-path = "/clocks";
+- some nodes now have 2 labels since mainline and downstream differs in
+  this respect: cprman/clocks, spi0/spi, gpu/vc4.
+- some nodes doesn't have an explicit status = "okay" since they're not
+  disabled in the base file: watchdog and random.
+- gpiomem doesn't need an explicit status = "okay".
+- bcm2708-rpi-cm.dts got the hpd-gpios property from bcm2708_common.dtsi,
+  it's now set directly in that file.
+- bcm2709-rpi-2-b.dts has the timer node moved from /soc/timer to /timer.
+- Removed clock-frequency property on the bcm{2709,2710}.dtsi timer nodes.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270X_DT: Use raspberrypi-power to turn on USB power
+
+Use the raspberrypi-power driver to turn on USB power.
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+
+BCM270X_DT: Add a .dtbo target, use for overlays
+
+Change the filenames and extensions to keep the pre-DDT style of
+overlay (<name>-overlay.dtb) distinct from new ones that use a
+different style of local fixups (<name>.dtbo), and to match other
+platforms.
+
+The RPi firmware uses the DDTK trailer atom to choose which type of
+overlay to use for each kernel.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+BCM270X_DT: Don't generate "linux,phandle" props
+
+The EPAPR standard says to use "phandle" properties to store phandles,
+rather than the deprecated "linux,phandle" version. By default, dtc
+generates both, but adding "-H epapr" causes it to only generate
+"phandle"s, saving some space and clutter.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+BCM270X_DT: Add overlay for enc28j60 on SPI2
+
+Works on SPI2 for compute module
+
+BCM270X_DT: Add midi-uart0 overlay
+
+MIDI requires 31.25kbaud, a baudrate unsupported by Linux. The
+midi-uart0 overlay configures uart0 (ttyAMA0) to use a fake clock
+so that requesting 38.4kbaud actually gets 31.25kbaud.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+BCM270X_DT: Add i2c-sensor overlay
+
+The i2c-sensor overlay is a container for various pressure and
+temperature sensors, currently bmp085 and bmp280. The standalone
+bmp085_i2c-sensor overlay is now deprecated.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+BCM270X_DT: overlays/*-overlay.dtb -> overlays/*.dtbo (#1752)
+
+We now create overlays as .dtbo files.
+
+build: support for .dtbo files for dtb overlays
+
+Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb.
+Patch the kernel, which has faulty rules to generate .dtbo the way yocto does
+
+Signed-off-by: Herve Jourdain <herve.jourdain@neuf.fr>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+BCM270X: Drop position requirement for CMA in VC4 overlay.
+
+No longer necessary since 2aefcd576195a739a7a256099571c9c4a401005f,
+and will probably let peeople that want to choose a larger CMA
+allocation (particularly on pi0/1).
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+
+BCM270X_DT: RPi Device Tree tidy
+
+Use the upstream sdhost node, add thermal-zones, and factor out some
+common elements.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+kbuild: Silence unhelpful DTC warnings
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+BCM270X_DT: DT build rules no longer arch-specific
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ .gitignore                                    |    1 +
+ arch/arm/boot/dts/Makefile                    |   27 +-
+ arch/arm/boot/dts/bcm2708-rpi-b-plus.dts      |  124 +
+ arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts      |  127 +
+ arch/arm/boot/dts/bcm2708-rpi-b.dts           |  114 +
+ arch/arm/boot/dts/bcm2708-rpi-bt.dtsi         |   26 +
+ arch/arm/boot/dts/bcm2708-rpi-cm.dts          |   97 +
+ arch/arm/boot/dts/bcm2708-rpi-cm.dtsi         |   18 +
+ arch/arm/boot/dts/bcm2708-rpi-zero-w.dts      |  163 +
+ arch/arm/boot/dts/bcm2708-rpi-zero.dts        |  117 +
+ arch/arm/boot/dts/bcm2708-rpi.dtsi            |   36 +
+ arch/arm/boot/dts/bcm2708.dtsi                |   12 +
+ arch/arm/boot/dts/bcm2709-rpi-2-b.dts         |  124 +
+ arch/arm/boot/dts/bcm2709-rpi.dtsi            |    5 +
+ arch/arm/boot/dts/bcm2709.dtsi                |   22 +
+ arch/arm/boot/dts/bcm270x-rpi.dtsi            |  154 +
+ arch/arm/boot/dts/bcm270x.dtsi                |  197 ++
+ arch/arm/boot/dts/bcm2710-rpi-2-b.dts         |  124 +
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts    |  196 ++
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts         |  198 ++
+ arch/arm/boot/dts/bcm2710-rpi-cm3.dts         |  133 +
+ arch/arm/boot/dts/bcm2710.dtsi                |   29 +
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts         |  306 +-
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts         |  609 ++++
+ arch/arm/boot/dts/bcm2711-rpi.dtsi            |  201 ++
+ arch/arm/boot/dts/bcm2711.dtsi                |   34 +-
+ arch/arm/boot/dts/bcm271x-rpi-bt.dtsi         |   26 +
+ arch/arm/boot/dts/bcm2835-common.dtsi         |    4 +-
+ arch/arm/boot/dts/bcm2835-rpi-a-plus.dts      |    5 +
+ arch/arm/boot/dts/bcm2835-rpi-a.dts           |    7 +
+ arch/arm/boot/dts/bcm2835-rpi-b-plus.dts      |    5 +
+ arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts      |    7 +
+ arch/arm/boot/dts/bcm2835-rpi-b.dts           |    7 +
+ arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts     |    5 +
+ arch/arm/boot/dts/bcm2835-rpi-zero-w.dts      |    5 +
+ arch/arm/boot/dts/bcm2835-rpi-zero.dts        |    5 +
+ arch/arm/boot/dts/bcm2835-rpi.dtsi            |   15 +-
+ arch/arm/boot/dts/bcm2835.dtsi                |    2 +-
+ arch/arm/boot/dts/bcm2836-rpi-2-b.dts         |    5 +
+ arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts    |    5 +
+ arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts    |    5 +
+ arch/arm/boot/dts/bcm2837-rpi-3-b.dts         |    5 +
+ arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts     |    5 +
+ arch/arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi |    4 +
+ arch/arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi |    4 +
+ arch/arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi |    4 +
+ .../boot/dts/bcm283x-rpi-i2c0mux_0_28.dtsi    |    4 +
+ .../boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi    |    4 +
+ .../boot/dts/bcm283x-rpi-usb-peripheral.dtsi  |    7 -
+ arch/arm/boot/dts/bcm283x.dtsi                |   26 +-
+ arch/arm/boot/dts/overlays/Makefile           |  216 ++
+ arch/arm/boot/dts/overlays/README             | 3040 +++++++++++++++++
+ .../arm/boot/dts/overlays/act-led-overlay.dts |   27 +
+ .../boot/dts/overlays/adafruit18-overlay.dts  |   55 +
+ .../dts/overlays/adau1977-adc-overlay.dts     |   40 +
+ .../dts/overlays/adau7002-simple-overlay.dts  |   52 +
+ .../arm/boot/dts/overlays/ads1015-overlay.dts |   98 +
+ .../arm/boot/dts/overlays/ads1115-overlay.dts |  103 +
+ .../arm/boot/dts/overlays/ads7846-overlay.dts |   89 +
+ .../boot/dts/overlays/adv7282m-overlay.dts    |   65 +
+ .../boot/dts/overlays/adv728x-m-overlay.dts   |   37 +
+ .../overlays/akkordion-iqdacplus-overlay.dts  |   49 +
+ .../allo-boss-dac-pcm512x-audio-overlay.dts   |   59 +
+ .../dts/overlays/allo-digione-overlay.dts     |   44 +
+ .../allo-katana-dac-audio-overlay.dts         |   57 +
+ .../allo-piano-dac-pcm512x-audio-overlay.dts  |   54 +
+ ...o-piano-dac-plus-pcm512x-audio-overlay.dts |   55 +
+ arch/arm/boot/dts/overlays/anyspi-overlay.dts |  205 ++
+ .../boot/dts/overlays/apds9960-overlay.dts    |   57 +
+ .../boot/dts/overlays/applepi-dac-overlay.dts |   57 +
+ .../boot/dts/overlays/at86rf233-overlay.dts   |   57 +
+ .../overlays/audioinjector-addons-overlay.dts |   60 +
+ ...dioinjector-isolated-soundcard-overlay.dts |   55 +
+ .../overlays/audioinjector-ultra-overlay.dts  |   71 +
+ .../audioinjector-wm8731-audio-overlay.dts    |   39 +
+ .../dts/overlays/audiosense-pi-overlay.dts    |   82 +
+ .../boot/dts/overlays/audremap-overlay.dts    |   35 +
+ .../boot/dts/overlays/balena-fin-overlay.dts  |  125 +
+ arch/arm/boot/dts/overlays/cma-overlay.dts    |   36 +
+ arch/arm/boot/dts/overlays/dht11-overlay.dts  |   41 +
+ .../dts/overlays/dionaudio-loco-overlay.dts   |   39 +
+ .../overlays/dionaudio-loco-v2-overlay.dts    |   49 +
+ .../boot/dts/overlays/disable-bt-overlay.dts  |   64 +
+ .../dts/overlays/disable-wifi-overlay.dts     |   20 +
+ arch/arm/boot/dts/overlays/dpi18-overlay.dts  |   39 +
+ arch/arm/boot/dts/overlays/dpi24-overlay.dts  |   39 +
+ arch/arm/boot/dts/overlays/draws-overlay.dts  |  208 ++
+ .../arm/boot/dts/overlays/dwc-otg-overlay.dts |   14 +
+ arch/arm/boot/dts/overlays/dwc2-overlay.dts   |   26 +
+ .../boot/dts/overlays/enc28j60-overlay.dts    |   53 +
+ .../dts/overlays/enc28j60-spi2-overlay.dts    |   47 +
+ .../arm/boot/dts/overlays/exc3000-overlay.dts |   48 +
+ .../boot/dts/overlays/fe-pi-audio-overlay.dts |   70 +
+ .../boot/dts/overlays/fsm-demo-overlay.dts    |  104 +
+ .../boot/dts/overlays/ghost-amp-overlay.dts   |  119 +
+ arch/arm/boot/dts/overlays/goodix-overlay.dts |   46 +
+ .../googlevoicehat-soundcard-overlay.dts      |   49 +
+ .../boot/dts/overlays/gpio-fan-overlay.dts    |   79 +
+ .../arm/boot/dts/overlays/gpio-ir-overlay.dts |   49 +
+ .../boot/dts/overlays/gpio-ir-tx-overlay.dts  |   36 +
+ .../boot/dts/overlays/gpio-key-overlay.dts    |   48 +
+ .../overlays/gpio-no-bank0-irq-overlay.dts    |   14 +
+ .../boot/dts/overlays/gpio-no-irq-overlay.dts |   14 +
+ .../dts/overlays/gpio-poweroff-overlay.dts    |   37 +
+ .../dts/overlays/gpio-shutdown-overlay.dts    |   84 +
+ .../boot/dts/overlays/hd44780-lcd-overlay.dts |   46 +
+ .../hdmi-backlight-hwhack-gpio-overlay.dts    |   47 +
+ .../dts/overlays/hifiberry-amp-overlay.dts    |   39 +
+ .../dts/overlays/hifiberry-dac-overlay.dts    |   34 +
+ .../overlays/hifiberry-dacplus-overlay.dts    |   65 +
+ .../overlays/hifiberry-dacplusadc-overlay.dts |   72 +
+ .../hifiberry-dacplusadcpro-overlay.dts       |   65 +
+ .../overlays/hifiberry-dacplusdsp-overlay.dts |   34 +
+ .../overlays/hifiberry-dacplushd-overlay.dts  |  106 +
+ .../dts/overlays/hifiberry-digi-overlay.dts   |   41 +
+ .../overlays/hifiberry-digi-pro-overlay.dts   |   43 +
+ .../boot/dts/overlays/highperi-overlay.dts    |   63 +
+ arch/arm/boot/dts/overlays/hy28a-overlay.dts  |   93 +
+ .../boot/dts/overlays/hy28b-2017-overlay.dts  |  152 +
+ arch/arm/boot/dts/overlays/hy28b-overlay.dts  |  148 +
+ .../boot/dts/overlays/i-sabre-q2m-overlay.dts |   39 +
+ .../boot/dts/overlays/i2c-bcm2708-overlay.dts |   13 +
+ .../boot/dts/overlays/i2c-gpio-overlay.dts    |   47 +
+ .../arm/boot/dts/overlays/i2c-mux-overlay.dts |  139 +
+ .../dts/overlays/i2c-pwm-pca9685a-overlay.dts |   26 +
+ .../dts/overlays/i2c-rtc-gpio-overlay.dts     |  266 ++
+ .../arm/boot/dts/overlays/i2c-rtc-overlay.dts |  278 ++
+ .../boot/dts/overlays/i2c-sensor-overlay.dts  |  271 ++
+ arch/arm/boot/dts/overlays/i2c0-overlay.dts   |   74 +
+ arch/arm/boot/dts/overlays/i2c1-overlay.dts   |   44 +
+ arch/arm/boot/dts/overlays/i2c3-overlay.dts   |   36 +
+ arch/arm/boot/dts/overlays/i2c4-overlay.dts   |   36 +
+ arch/arm/boot/dts/overlays/i2c5-overlay.dts   |   36 +
+ arch/arm/boot/dts/overlays/i2c6-overlay.dts   |   36 +
+ .../dts/overlays/i2s-gpio28-31-overlay.dts    |   18 +
+ .../boot/dts/overlays/ilitek251x-overlay.dts  |   45 +
+ arch/arm/boot/dts/overlays/imx219-overlay.dts |  119 +
+ arch/arm/boot/dts/overlays/imx290-overlay.dts |   32 +
+ .../boot/dts/overlays/imx290_327-overlay.dtsi |  145 +
+ arch/arm/boot/dts/overlays/imx477-overlay.dts |  119 +
+ .../dts/overlays/iqaudio-codec-overlay.dts    |   42 +
+ .../boot/dts/overlays/iqaudio-dac-overlay.dts |   46 +
+ .../dts/overlays/iqaudio-dacplus-overlay.dts  |   49 +
+ .../iqaudio-digi-wm8804-audio-overlay.dts     |   47 +
+ .../arm/boot/dts/overlays/irs1125-overlay.dts |   85 +
+ .../dts/overlays/jedec-spi-nor-overlay.dts    |  309 ++
+ .../dts/overlays/justboom-both-overlay.dts    |   65 +
+ .../dts/overlays/justboom-dac-overlay.dts     |   46 +
+ .../dts/overlays/justboom-digi-overlay.dts    |   41 +
+ .../arm/boot/dts/overlays/ltc294x-overlay.dts |   86 +
+ .../boot/dts/overlays/max98357a-overlay.dts   |   84 +
+ .../boot/dts/overlays/maxtherm-overlay.dts    |  166 +
+ .../boot/dts/overlays/mbed-dac-overlay.dts    |   64 +
+ .../boot/dts/overlays/mcp23017-overlay.dts    |   69 +
+ .../boot/dts/overlays/mcp23s17-overlay.dts    |  732 ++++
+ .../dts/overlays/mcp2515-can0-overlay.dts     |   73 +
+ .../dts/overlays/mcp2515-can1-overlay.dts     |   73 +
+ .../arm/boot/dts/overlays/mcp3008-overlay.dts |  205 ++
+ .../arm/boot/dts/overlays/mcp3202-overlay.dts |  205 ++
+ .../arm/boot/dts/overlays/mcp342x-overlay.dts |  164 +
+ .../dts/overlays/media-center-overlay.dts     |  134 +
+ .../boot/dts/overlays/merus-amp-overlay.dts   |   60 +
+ .../boot/dts/overlays/midi-uart0-overlay.dts  |   36 +
+ .../boot/dts/overlays/midi-uart1-overlay.dts  |   43 +
+ .../boot/dts/overlays/miniuart-bt-overlay.dts |   93 +
+ arch/arm/boot/dts/overlays/mmc-overlay.dts    |   46 +
+ .../arm/boot/dts/overlays/mpu6050-overlay.dts |   28 +
+ .../arm/boot/dts/overlays/mz61581-overlay.dts |  117 +
+ arch/arm/boot/dts/overlays/ov5647-overlay.dts |   92 +
+ arch/arm/boot/dts/overlays/ov7251-overlay.dts |  111 +
+ arch/arm/boot/dts/overlays/ov9281-overlay.dts |  111 +
+ arch/arm/boot/dts/overlays/overlay_map.dts    |  141 +
+ .../arm/boot/dts/overlays/papirus-overlay.dts |   89 +
+ .../arm/boot/dts/overlays/pca953x-overlay.dts |  240 ++
+ arch/arm/boot/dts/overlays/pibell-overlay.dts |   81 +
+ .../dts/overlays/pifacedigital-overlay.dts    |  144 +
+ arch/arm/boot/dts/overlays/piglow-overlay.dts |   97 +
+ .../boot/dts/overlays/piscreen-overlay.dts    |  102 +
+ .../boot/dts/overlays/piscreen2r-overlay.dts  |  106 +
+ .../arm/boot/dts/overlays/pisound-overlay.dts |  120 +
+ .../arm/boot/dts/overlays/pitft22-overlay.dts |   69 +
+ .../overlays/pitft28-capacitive-overlay.dts   |   91 +
+ .../overlays/pitft28-resistive-overlay.dts    |  119 +
+ .../overlays/pitft35-resistive-overlay.dts    |  119 +
+ .../boot/dts/overlays/pps-gpio-overlay.dts    |   38 +
+ .../boot/dts/overlays/pwm-2chan-overlay.dts   |   49 +
+ .../boot/dts/overlays/pwm-ir-tx-overlay.dts   |   40 +
+ arch/arm/boot/dts/overlays/pwm-overlay.dts    |   45 +
+ .../arm/boot/dts/overlays/qca7000-overlay.dts |   55 +
+ .../dts/overlays/rotary-encoder-overlay.dts   |   59 +
+ .../dts/overlays/rpi-backlight-overlay.dts    |   21 +
+ .../overlays/rpi-cirrus-wm5102-overlay.dts    |  172 +
+ .../arm/boot/dts/overlays/rpi-dac-overlay.dts |   34 +
+ .../boot/dts/overlays/rpi-display-overlay.dts |   91 +
+ .../boot/dts/overlays/rpi-ft5406-overlay.dts  |   25 +
+ .../arm/boot/dts/overlays/rpi-poe-overlay.dts |   95 +
+ .../boot/dts/overlays/rpi-proto-overlay.dts   |   39 +
+ .../boot/dts/overlays/rpi-sense-overlay.dts   |   47 +
+ arch/arm/boot/dts/overlays/rpi-tv-overlay.dts |   34 +
+ .../boot/dts/overlays/rpivid-v4l2-overlay.dts |   61 +
+ .../rra-digidac1-wm8741-audio-overlay.dts     |   49 +
+ .../boot/dts/overlays/sainsmart18-overlay.dts |   52 +
+ .../dts/overlays/sc16is750-i2c-overlay.dts    |   43 +
+ .../dts/overlays/sc16is752-i2c-overlay.dts    |   43 +
+ .../dts/overlays/sc16is752-spi0-overlay.dts   |   49 +
+ .../dts/overlays/sc16is752-spi1-overlay.dts   |   67 +
+ arch/arm/boot/dts/overlays/sdhost-overlay.dts |   38 +
+ arch/arm/boot/dts/overlays/sdio-overlay.dts   |   77 +
+ .../arm/boot/dts/overlays/sdtweak-overlay.dts |   25 +
+ .../boot/dts/overlays/sh1106-spi-overlay.dts  |   84 +
+ .../arm/boot/dts/overlays/smi-dev-overlay.dts |   20 +
+ .../boot/dts/overlays/smi-nand-overlay.dts    |   66 +
+ arch/arm/boot/dts/overlays/smi-overlay.dts    |   37 +
+ .../dts/overlays/spi-gpio35-39-overlay.dts    |   31 +
+ .../dts/overlays/spi-gpio40-45-overlay.dts    |   36 +
+ .../arm/boot/dts/overlays/spi-rtc-overlay.dts |   33 +
+ .../boot/dts/overlays/spi0-1cs-overlay.dts    |   42 +
+ .../boot/dts/overlays/spi0-2cs-overlay.dts    |   37 +
+ .../boot/dts/overlays/spi1-1cs-overlay.dts    |   57 +
+ .../boot/dts/overlays/spi1-2cs-overlay.dts    |   69 +
+ .../boot/dts/overlays/spi1-3cs-overlay.dts    |   81 +
+ .../boot/dts/overlays/spi2-1cs-overlay.dts    |   57 +
+ .../boot/dts/overlays/spi2-2cs-overlay.dts    |   69 +
+ .../boot/dts/overlays/spi2-3cs-overlay.dts    |   81 +
+ .../boot/dts/overlays/spi3-1cs-overlay.dts    |   44 +
+ .../boot/dts/overlays/spi3-2cs-overlay.dts    |   56 +
+ .../boot/dts/overlays/spi4-1cs-overlay.dts    |   44 +
+ .../boot/dts/overlays/spi4-2cs-overlay.dts    |   56 +
+ .../boot/dts/overlays/spi5-1cs-overlay.dts    |   44 +
+ .../boot/dts/overlays/spi5-2cs-overlay.dts    |   56 +
+ .../boot/dts/overlays/spi6-1cs-overlay.dts    |   44 +
+ .../boot/dts/overlays/spi6-2cs-overlay.dts    |   56 +
+ .../arm/boot/dts/overlays/ssd1306-overlay.dts |   36 +
+ .../boot/dts/overlays/ssd1306-spi-overlay.dts |   84 +
+ .../boot/dts/overlays/ssd1351-spi-overlay.dts |   83 +
+ .../dts/overlays/superaudioboard-overlay.dts  |   73 +
+ arch/arm/boot/dts/overlays/sx150x-overlay.dts | 1706 +++++++++
+ .../dts/overlays/tc358743-audio-overlay.dts   |   52 +
+ .../boot/dts/overlays/tc358743-overlay.dts    |  107 +
+ .../boot/dts/overlays/tinylcd35-overlay.dts   |  222 ++
+ .../boot/dts/overlays/tpm-slb9670-overlay.dts |   44 +
+ arch/arm/boot/dts/overlays/uart0-overlay.dts  |   32 +
+ arch/arm/boot/dts/overlays/uart1-overlay.dts  |   38 +
+ arch/arm/boot/dts/overlays/uart2-overlay.dts  |   27 +
+ arch/arm/boot/dts/overlays/uart3-overlay.dts  |   27 +
+ arch/arm/boot/dts/overlays/uart4-overlay.dts  |   27 +
+ arch/arm/boot/dts/overlays/uart5-overlay.dts  |   27 +
+ arch/arm/boot/dts/overlays/udrc-overlay.dts   |  128 +
+ .../boot/dts/overlays/upstream-overlay.dts    |  113 +
+ .../dts/overlays/upstream-pi4-overlay.dts     |  161 +
+ .../dts/overlays/vc4-fkms-v3d-overlay.dts     |   40 +
+ .../overlays/vc4-kms-kippah-7inch-overlay.dts |   43 +
+ .../boot/dts/overlays/vc4-kms-v3d-overlay.dts |  122 +
+ .../dts/overlays/vc4-kms-v3d-pi4-overlay.dts  |  186 +
+ arch/arm/boot/dts/overlays/vga666-overlay.dts |   30 +
+ .../arm/boot/dts/overlays/w1-gpio-overlay.dts |   40 +
+ .../dts/overlays/w1-gpio-pullup-overlay.dts   |   42 +
+ arch/arm/boot/dts/overlays/w5500-overlay.dts  |   63 +
+ .../arm/boot/dts/overlays/wittypi-overlay.dts |   44 +
+ arch/arm64/boot/dts/Makefile                  |    2 +
+ arch/arm64/boot/dts/broadcom/Makefile         |   16 +-
+ .../boot/dts/broadcom/bcm2710-rpi-2-b.dts     |    3 +
+ .../dts/broadcom/bcm2710-rpi-3-b-plus.dts     |    3 +
+ .../boot/dts/broadcom/bcm2710-rpi-3-b.dts     |    3 +
+ .../boot/dts/broadcom/bcm2710-rpi-cm3.dts     |    3 +
+ .../boot/dts/broadcom/bcm2711-rpi-4-b.dts     |    5 +-
+ .../dts/broadcom/bcm283x-rpi-csi1-2lane.dtsi  |    1 +
+ .../dts/broadcom/bcm283x-rpi-lan7515.dtsi     |    1 +
+ arch/arm64/boot/dts/overlays                  |    1 +
+ scripts/Makefile.dtbinst                      |    6 +-
+ scripts/Makefile.lib                          |   13 +
+ 271 files changed, 23898 insertions(+), 31 deletions(-)
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-bt.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-cm.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-zero.dts
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2708.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+ create mode 100644 arch/arm/boot/dts/bcm2709-rpi.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2709.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm270x-rpi.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm270x.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2710-rpi-2-b.dts
+ create mode 100644 arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+ create mode 100644 arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+ create mode 100644 arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+ create mode 100644 arch/arm/boot/dts/bcm2710.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+ create mode 100644 arch/arm/boot/dts/bcm2711-rpi.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm271x-rpi-bt.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_28.dtsi
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi
+ delete mode 100644 arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
+ create mode 100644 arch/arm/boot/dts/overlays/Makefile
+ create mode 100644 arch/arm/boot/dts/overlays/README
+ create mode 100644 arch/arm/boot/dts/overlays/act-led-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/adafruit18-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ads1015-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ads1115-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ads7846-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/adv7282m-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/allo-digione-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/anyspi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/apds9960-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/at86rf233-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/audremap-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/balena-fin-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/cma-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dht11-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/disable-bt-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/disable-wifi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dpi18-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dpi24-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/draws-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dwc-otg-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/dwc2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/enc28j60-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/exc3000-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/goodix-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-fan-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-ir-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-ir-tx-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-key-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hd44780-lcd-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hdmi-backlight-hwhack-gpio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplushd-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/highperi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hy28a-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/hy28b-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-mux-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c0-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c1-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c3-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c4-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c5-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2c6-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ilitek251x-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/imx219-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/imx290-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
+ create mode 100644 arch/arm/boot/dts/overlays/imx477-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/irs1125-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/justboom-both-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/justboom-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/justboom-digi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ltc294x-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/max98357a-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/maxtherm-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mbed-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mcp23017-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mcp23s17-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/mcp3008-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/mcp3202-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mcp342x-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/media-center-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/merus-amp-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart1-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mmc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mpu6050-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/mz61581-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ov5647-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ov7251-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ov9281-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/overlay_map.dts
+ create mode 100644 arch/arm/boot/dts/overlays/papirus-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pca953x-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pibell-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pifacedigital-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/piglow-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/piscreen-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/piscreen2r-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pisound-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pitft22-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pwm-ir-tx-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pwm-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/qca7000-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-display-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-proto-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-sense-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-tv-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sainsmart18-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sc16is752-spi0-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sdhost-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sdio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sdtweak-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/smi-dev-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/smi-nand-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/smi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi-gpio40-45-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi-rtc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi0-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi0-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi3-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi4-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi4-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi5-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi5-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi6-1cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/spi6-2cs-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ssd1306-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ssd1306-spi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/superaudioboard-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/sx150x-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/tc358743-audio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/tc358743-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
+ create mode 100755 arch/arm/boot/dts/overlays/uart0-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/uart1-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/uart2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/uart3-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/uart4-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/uart5-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/udrc-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/upstream-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-kippah-7inch-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vga666-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/w5500-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/wittypi-overlay.dts
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
+ create mode 120000 arch/arm64/boot/dts/broadcom/bcm283x-rpi-csi1-2lane.dtsi
+ create mode 120000 arch/arm64/boot/dts/broadcom/bcm283x-rpi-lan7515.dtsi
+ create mode 120000 arch/arm64/boot/dts/overlays
+
+diff --git a/.gitignore b/.gitignore
+index 67d2f3503128..8b0b16eeca88 100644
+--- a/.gitignore
++++ b/.gitignore
+@@ -18,6 +18,7 @@
+ *.c.[012]*.*
+ *.dt.yaml
+ *.dtb
++*.dtbo
+ *.dtb.S
+ *.dwo
+ *.elf
+diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
+index ce66ffd5a1bb..87241fe26e10 100644
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -1,4 +1,20 @@
+ # SPDX-License-Identifier: GPL-2.0
++
++dtb-$(CONFIG_ARCH_BCM2835) += \
++	bcm2708-rpi-b.dtb \
++	bcm2708-rpi-b-rev1.dtb \
++	bcm2708-rpi-b-plus.dtb \
++	bcm2708-rpi-cm.dtb \
++	bcm2708-rpi-zero.dtb \
++	bcm2708-rpi-zero-w.dtb \
++	bcm2709-rpi-2-b.dtb \
++	bcm2710-rpi-2-b.dtb \
++	bcm2710-rpi-3-b.dtb \
++	bcm2711-rpi-4-b.dtb \
++	bcm2710-rpi-3-b-plus.dtb \
++	bcm2710-rpi-cm3.dtb \
++	bcm2711-rpi-cm4.dtb
++
+ dtb-$(CONFIG_ARCH_ALPINE) += \
+ 	alpine-db.dtb
+ dtb-$(CONFIG_MACH_ARTPEC6) += \
+@@ -92,7 +108,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2837-rpi-3-b.dtb \
+ 	bcm2837-rpi-3-b-plus.dtb \
+ 	bcm2837-rpi-cm3-io3.dtb \
+-	bcm2711-rpi-4-b.dtb \
+ 	bcm2835-rpi-zero.dtb \
+ 	bcm2835-rpi-zero-w.dtb
+ dtb-$(CONFIG_ARCH_BCM_5301X) += \
+@@ -1408,3 +1423,13 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
+ 	aspeed-bmc-opp-zaius.dtb \
+ 	aspeed-bmc-portwell-neptune.dtb \
+ 	aspeed-bmc-quanta-q71l.dtb
++
++targets += dtbs dtbs_install
++targets += $(dtb-y)
++
++subdir-y	:= overlays
++
++# Enable fixups to support overlays on BCM2835 platforms
++ifeq ($(CONFIG_ARCH_BCM2835),y)
++	DTC_FLAGS ?= -@
++endif
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+new file mode 100644
+index 000000000000..98581eec4bdc
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+@@ -0,0 +1,124 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++#include "bcm283x-rpi-smsc9514.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
++	model = "Raspberry Pi Model B+";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 45>;
++		brcm,function = <4>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 47 0>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "input";
++		gpios = <&gpio 35 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts b/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
+new file mode 100644
+index 000000000000..7b554b465b27
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
+@@ -0,0 +1,127 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++#include "bcm283x-rpi-smsc9512.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-b", "brcm,bcm2835";
++	model = "Raspberry Pi Model B";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <28 29 30 31>;
++		brcm,function = <6>; /* alt2 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 45>;
++		brcm,function = <4>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++/delete-node/ &i2c0mux;
++
++i2c0: &i2c0if {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c0_pins>;
++	clock-frequency = <100000>;
++};
++
++i2c_csi_dsi: &i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++/ {
++	aliases {
++		i2c0 = &i2c0;
++	};
++
++	__overrides__ {
++		i2c0 = <&i2c0>, "status";
++	};
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 16 1>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-b.dts b/arch/arm/boot/dts/bcm2708-rpi-b.dts
+new file mode 100644
+index 000000000000..305f1dbde60f
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
+@@ -0,0 +1,114 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++#include "bcm283x-rpi-smsc9512.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-b", "brcm,bcm2835";
++	model = "Raspberry Pi Model B";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <28 29 30 31>;
++		brcm,function = <6>; /* alt2 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 45>;
++		brcm,function = <4>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 16 1>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-bt.dtsi b/arch/arm/boot/dts/bcm2708-rpi-bt.dtsi
+new file mode 100644
+index 000000000000..a18f80af97d3
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-bt.dtsi
+@@ -0,0 +1,26 @@
++// SPDX-License-Identifier: GPL-2.0
++
++&uart0 {
++	bt: bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <3000000>;
++		shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
++		status = "disabled";
++	};
++};
++
++&uart1 {
++	minibt: bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <460800>;
++		shutdown-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
++		status = "disabled";
++	};
++};
++
++/ {
++	__overrides__ {
++		krnbt = <&bt>,"status";
++		krnbt_baudrate = <&bt>,"max-speed:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-cm.dts b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
+new file mode 100644
+index 000000000000..93062c4ffad2
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
+@@ -0,0 +1,97 @@
++/dts-v1/;
++
++#include "bcm2708-rpi-cm.dtsi"
++#include "bcm283x-rpi-csi0-2lane.dtsi"
++#include "bcm283x-rpi-csi1-4lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,compute-module", "brcm,bcm2835";
++	model = "Raspberry Pi Compute Module";
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins;
++		brcm,function;
++	};
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+new file mode 100644
+index 000000000000..dce160f420fd
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+@@ -0,0 +1,18 @@
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 47 0>;
++	};
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+new file mode 100644
+index 000000000000..f1bbed9fbf73
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+@@ -0,0 +1,163 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm2708-rpi-bt.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
++	model = "Raspberry Pi Zero W";
++
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc1 = &mmcnr;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins = <34 35 36 37 38 39>;
++		brcm,function = <7>; /* ALT3 = SD1 */
++		brcm,pull = <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = <43>;
++		brcm,function = <4>; /* alt0:GPCLK2 */
++		brcm,pull = <0>; /* none */
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <30 31 32 33>;
++		brcm,function = <7>; /* alt3=UART0 */
++		brcm,pull = <2 0 0 2>; /* up none none up */
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <>;
++		brcm,function = <>;
++	};
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "actpwr";
++		gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-zero.dts b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+new file mode 100644
+index 000000000000..e7578788b839
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+@@ -0,0 +1,117 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++#include "bcm2708-rpi.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,model-zero", "brcm,bcm2835";
++	model = "Raspberry Pi Zero";
++
++	chosen {
++		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <>;
++		brcm,function = <>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "actpwr";
++		gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2708-rpi.dtsi b/arch/arm/boot/dts/bcm2708-rpi.dtsi
+new file mode 100644
+index 000000000000..e2458b15d64a
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi.dtsi
+@@ -0,0 +1,36 @@
++/* Downstream modifications common to bcm2835, bcm2836, bcm2837 */
++
++#include "bcm2835-rpi.dtsi"
++#include "bcm270x-rpi.dtsi"
++
++/ {
++	memory@0 {
++		device_type = "memory";
++		reg = <0x0 0x0>;
++	};
++
++	aliases {
++		i2c2 = &i2c2;
++	};
++
++	__overrides__ {
++		i2c2_iknowwhatimdoing = <&i2c2>,"status";
++		i2c2_baudrate = <&i2c2>,"clock-frequency:0";
++		sd_poll_once = <&sdhost>,"non-removable?";
++	};
++};
++
++&sdhost {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdhost_gpio48>;
++	status = "okay";
++};
++
++&hdmi {
++	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
++	status = "disabled";
++};
++
++&i2c2 {
++	status = "disabled";
++};
+diff --git a/arch/arm/boot/dts/bcm2708.dtsi b/arch/arm/boot/dts/bcm2708.dtsi
+new file mode 100644
+index 000000000000..36ec4989403f
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708.dtsi
+@@ -0,0 +1,12 @@
++#include "bcm2835.dtsi"
++#include "bcm270x.dtsi"
++
++/ {
++	__overrides__ {
++		arm_freq;
++	};
++};
++
++&vc4 {
++	status = "disabled";
++};
+diff --git a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+new file mode 100644
+index 000000000000..6b2e3c291d72
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+@@ -0,0 +1,124 @@
++/dts-v1/;
++
++#include "bcm2709.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-smsc9514.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
++	model = "Raspberry Pi 2 Model B";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 45>;
++		brcm,function = <4>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 47 0>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "input";
++		gpios = <&gpio 35 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2709-rpi.dtsi b/arch/arm/boot/dts/bcm2709-rpi.dtsi
+new file mode 100644
+index 000000000000..babfa41cd9f7
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2709-rpi.dtsi
+@@ -0,0 +1,5 @@
++#include "bcm2708-rpi.dtsi"
++
++&vchiq {
++	compatible = "brcm,bcm2836-vchiq", "brcm,bcm2835-vchiq";
++};
+diff --git a/arch/arm/boot/dts/bcm2709.dtsi b/arch/arm/boot/dts/bcm2709.dtsi
+new file mode 100644
+index 000000000000..68eafc1b281a
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2709.dtsi
+@@ -0,0 +1,22 @@
++#include "bcm2836.dtsi"
++#include "bcm270x.dtsi"
++
++/ {
++	soc {
++		ranges = <0x7e000000 0x3f000000 0x01000000>,
++		         <0x40000000 0x40000000 0x00040000>;
++
++		/delete-node/ timer@7e003000;
++	};
++
++	__overrides__ {
++		arm_freq = <&v7_cpu0>, "clock-frequency:0",
++			   <&v7_cpu1>, "clock-frequency:0",
++			   <&v7_cpu2>, "clock-frequency:0",
++			   <&v7_cpu3>, "clock-frequency:0";
++	};
++};
++
++&vc4 {
++	status = "disabled";
++};
+diff --git a/arch/arm/boot/dts/bcm270x-rpi.dtsi b/arch/arm/boot/dts/bcm270x-rpi.dtsi
+new file mode 100644
+index 000000000000..68a7e1c09db1
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm270x-rpi.dtsi
+@@ -0,0 +1,154 @@
++/* Downstream modifications to bcm2835-rpi.dtsi */
++
++/ {
++	aliases {
++		audio = &audio;
++		aux = &aux;
++		sound = &sound;
++		soc = &soc;
++		dma = &dma;
++		intc = &intc;
++		watchdog = &watchdog;
++		random = &random;
++		mailbox = &mailbox;
++		gpio = &gpio;
++		uart0 = &uart0;
++		uart1 = &uart1;
++		sdhost = &sdhost;
++		mmc = &mmc;
++		mmc1 = &mmc;
++		mmc0 = &sdhost;
++		i2s = &i2s;
++		i2c0 = &i2c0;
++		i2c1 = &i2c1;
++		i2c10 = &i2c_csi_dsi;
++		spi0 = &spi0;
++		spi1 = &spi1;
++		spi2 = &spi2;
++		usb = &usb;
++		leds = &leds;
++		fb = &fb;
++		thermal = &thermal;
++		axiperf = &axiperf;
++	};
++
++	/* Define these notional regulators for use by overlays */
++	vdd_3v3_reg: fixedregulator_3v3 {
++		compatible = "regulator-fixed";
++		regulator-always-on;
++		regulator-max-microvolt = <3300000>;
++		regulator-min-microvolt = <3300000>;
++		regulator-name = "3v3";
++	};
++
++	vdd_5v0_reg: fixedregulator_5v0 {
++		compatible = "regulator-fixed";
++		regulator-always-on;
++		regulator-max-microvolt = <5000000>;
++		regulator-min-microvolt = <5000000>;
++		regulator-name = "5v0";
++	};
++
++	leds: leds {
++		compatible = "gpio-leds";
++	};
++
++	soc {
++		gpiomem {
++			compatible = "brcm,bcm2835-gpiomem";
++			reg = <0x7e200000 0x1000>;
++		};
++
++		fb: fb {
++			compatible = "brcm,bcm2708-fb";
++			firmware = <&firmware>;
++			status = "okay";
++		};
++
++		vcsm: vcsm {
++			compatible = "raspberrypi,bcm2835-vcsm";
++			firmware = <&firmware>;
++			status = "okay";
++		};
++
++		/* External sound card */
++		sound: sound {
++			status = "disabled";
++		};
++	};
++
++	__overrides__ {
++		cache_line_size;
++
++		uart0 = <&uart0>,"status";
++		uart1 = <&uart1>,"status";
++		i2s = <&i2s>,"status";
++		spi = <&spi0>,"status";
++		i2c0 = <&i2c0if>,"status",<&i2c0mux>,"status";
++		i2c1 = <&i2c1>,"status";
++		i2c0_baudrate = <&i2c0if>,"clock-frequency:0";
++		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
++
++		audio = <&audio>,"status";
++		watchdog = <&watchdog>,"status";
++		random = <&random>,"status";
++		sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++		sd_force_pio = <&sdhost>,"brcm,force-pio?";
++		sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++		sd_debug     = <&sdhost>,"brcm,debug";
++		sdio_overclock = <&mmc>,"brcm,overclock-50:0",
++				 <&mmcnr>,"brcm,overclock-50:0";
++		axiperf      = <&axiperf>,"status";
++	};
++};
++
++&uart0 {
++	skip-init;
++};
++
++&uart1 {
++	skip-init;
++};
++
++&txp {
++	status = "disabled";
++};
++
++&i2c0if {
++	status = "disabled";
++};
++
++&i2c0mux {
++	status = "disabled";
++};
++
++&i2c1 {
++	status = "disabled";
++};
++
++&clocks {
++	firmware = <&firmware>;
++};
++
++&sdhci {
++	pinctrl-names = "default";
++	pinctrl-0 = <&emmc_gpio48>;
++	bus-width = <4>;
++};
++
++&cpu_thermal {
++	/delete-node/ trips;
++};
++
++&vec {
++	status = "disabled";
++};
++
++&vchiq {
++	/* Onboard audio */
++	audio: bcm2835_audio {
++		compatible = "brcm,bcm2835-audio";
++		brcm,pwm-channels = <8>;
++		status = "disabled";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm270x.dtsi b/arch/arm/boot/dts/bcm270x.dtsi
+new file mode 100644
+index 000000000000..446d4ff64842
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -0,0 +1,197 @@
++/* Downstream bcm283x.dtsi diff */
++#include <dt-bindings/power/raspberrypi-power.h>
++
++/ {
++	chosen {
++		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		/delete-property/ stdout-path;
++	};
++
++	soc: soc {
++
++		watchdog: watchdog@7e100000 {
++			/* Add label */
++		};
++
++		random: rng@7e104000 {
++			/* Add label */
++		};
++
++		spi0: spi@7e204000 {
++			/* Add label */
++		};
++
++#ifndef BCM2711
++		pixelvalve0: pixelvalve@7e206000 {
++			/* Add label */
++			status = "disabled";
++		};
++
++		pixelvalve1: pixelvalve@7e207000 {
++			/* Add label */
++			status = "disabled";
++		};
++#endif
++
++		/delete-node/ sdhci@7e300000;
++
++		sdhci: mmc: mmc@7e300000 {
++			compatible = "brcm,bcm2835-mmc", "brcm,bcm2835-sdhci";
++			reg = <0x7e300000 0x100>;
++			interrupts = <2 30>;
++			clocks = <&clocks BCM2835_CLOCK_EMMC>;
++			dmas = <&dma 11>;
++			dma-names = "rx-tx";
++			brcm,overclock-50 = <0>;
++			status = "disabled";
++		};
++
++		/* A clone of mmc but with non-removable set */
++		mmcnr: mmcnr@7e300000 {
++			compatible = "brcm,bcm2835-mmc", "brcm,bcm2835-sdhci";
++			reg = <0x7e300000 0x100>;
++			interrupts = <2 30>;
++			clocks = <&clocks BCM2835_CLOCK_EMMC>;
++			dmas = <&dma 11>;
++			dma-names = "rx-tx";
++			brcm,overclock-50 = <0>;
++			non-removable;
++			status = "disabled";
++		};
++
++		hvs: hvs@7e400000 {
++			/* Add label */
++			status = "disabled";
++		};
++
++		firmwarekms: firmwarekms@7e600000 {
++			compatible = "raspberrypi,rpi-firmware-kms";
++			/* SMI interrupt reg */
++			reg = <0x7e600000 0x100>;
++			interrupts = <2 16>;
++			brcm,firmware = <&firmware>;
++			status = "disabled";
++		};
++
++		smi: smi@7e600000 {
++			compatible = "brcm,bcm2835-smi";
++			reg = <0x7e600000 0x100>;
++			interrupts = <2 16>;
++			clocks = <&clocks BCM2835_CLOCK_SMI>;
++			assigned-clocks = <&clocks BCM2835_CLOCK_SMI>;
++			assigned-clock-rates = <125000000>;
++			dmas = <&dma 4>;
++			dma-names = "rx-tx";
++			status = "disabled";
++		};
++
++		csi0: csi@7e800000 {
++			compatible = "brcm,bcm2835-unicam";
++			reg = <0x7e800000 0x800>,
++			      <0x7e802000 0x4>;
++			interrupts = <2 6>;
++			clocks = <&clocks BCM2835_CLOCK_CAM0>,
++				 <&firmware_clocks 4>;
++			clock-names = "lp", "vpu";
++			power-domains = <&power RPI_POWER_DOMAIN_UNICAM0>;
++			#address-cells = <1>;
++			#size-cells = <0>;
++			#clock-cells = <1>;
++			status = "disabled";
++		};
++
++		csi1: csi@7e801000 {
++			compatible = "brcm,bcm2835-unicam";
++			reg = <0x7e801000 0x800>,
++			      <0x7e802004 0x4>;
++			interrupts = <2 7>;
++			clocks = <&clocks BCM2835_CLOCK_CAM1>,
++				 <&firmware_clocks 4>;
++			clock-names = "lp", "vpu";
++			power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>;
++			#address-cells = <1>;
++			#size-cells = <0>;
++			#clock-cells = <1>;
++			status = "disabled";
++		};
++
++#ifndef BCM2711
++		pixelvalve2: pixelvalve@7e807000 {
++			/* Add label */
++			status = "disabled";
++		};
++#endif
++
++		hdmi@7e902000 { /* hdmi */
++			status = "disabled";
++		};
++
++		usb@7e980000 { /* usb */
++			compatible = "brcm,bcm2708-usb";
++			reg = <0x7e980000 0x10000>,
++			      <0x7e006000 0x1000>;
++			interrupt-names = "usb",
++					  "soft";
++			interrupts = <1 9>,
++				     <2 0>;
++		};
++
++#ifndef BCM2711
++		v3d@7ec00000 { /* vd3 */
++			compatible = "brcm,vc4-v3d";
++			power-domains = <&power RPI_POWER_DOMAIN_V3D>;
++			status = "disabled";
++		};
++#endif
++
++		axiperf: axiperf {
++			compatible = "brcm,bcm2835-axiperf";
++			reg = <0x7e009800 0x100>,
++			      <0x7ee08000 0x100>;
++			firmware = <&firmware>;
++			status = "disabled";
++		};
++	};
++
++	__overrides__ {
++		cam0-pwdn-ctrl;
++		cam0-pwdn;
++		cam0-led-ctrl;
++		cam0-led;
++	};
++};
++
++&gpio {
++	interrupts = <2 17>, <2 18>;
++
++	dpi_18bit_gpio0: dpi_18bit_gpio0 {
++		brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
++			     12 13 14 15 16 17 18 19
++			     20 21>;
++		brcm,function = <BCM2835_FSEL_ALT2>;
++	};
++};
++
++&uart0 {
++	/* Enable CTS bug workaround */
++	cts-event-workaround;
++};
++
++&i2s {
++	#sound-dai-cells = <0>;
++	dmas = <&dma 2>, <&dma 3>;
++	dma-names = "tx", "rx";
++};
++
++&sdhost {
++	dmas = <&dma (13|(1<<29))>;
++	dma-names = "rx-tx";
++	bus-width = <4>;
++	brcm,overclock-50 = <0>;
++	brcm,pio-limit = <1>;
++};
++
++&spi0 {
++	dmas = <&dma 6>, <&dma 7>;
++	dma-names = "tx", "rx";
++};
+diff --git a/arch/arm/boot/dts/bcm2710-rpi-2-b.dts b/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
+new file mode 100644
+index 000000000000..49cfda63606e
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
+@@ -0,0 +1,124 @@
++/dts-v1/;
++
++#include "bcm2710.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-smsc9514.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++
++/ {
++	compatible = "raspberrypi,2-model-b-rev2", "brcm,bcm2837";
++	model = "Raspberry Pi 2 Model B rev 1.2";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 45>;
++		brcm,function = <4>;
++	};
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 47 0>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "input";
++		gpios = <&gpio 35 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+new file mode 100644
+index 000000000000..4e4e47100831
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -0,0 +1,196 @@
++/dts-v1/;
++
++#include "bcm2710.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-lan7515.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++#include "bcm271x-rpi-bt.dtsi"
++
++/ {
++	compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
++	model = "Raspberry Pi 3 Model B+";
++
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc1 = &mmcnr;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <7>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = <43>;
++		brcm,function = <4>; /* alt0:GPCLK2 */
++		brcm,pull = <0>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <32 33>;
++		brcm,function = <7>; /* alt3=UART0 */
++		brcm,pull = <0 2>;
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 41>;
++		brcm,function = <4>;
++	};
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&firmware {
++	expgpio: expgpio {
++		compatible = "raspberrypi,firmware-gpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		status = "okay";
++	};
++};
++
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 29 0>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "default-on";
++		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++&eth_phy {
++	microchip,eee-enabled;
++	microchip,tx-lpi-timer = <600>; /* non-aggressive*/
++	microchip,downshift-after = <2>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++
++		eee = <&eth_phy>,"microchip,eee-enabled?";
++		tx_lpi_timer = <&eth_phy>,"microchip,tx-lpi-timer:0";
++		eth_led0 = <&eth_phy>,"microchip,led-modes:0";
++		eth_led1 = <&eth_phy>,"microchip,led-modes:4";
++		eth_downshift_after = <&eth_phy>,"microchip,downshift-after:0";
++		eth_max_speed = <&eth_phy>,"max-speed:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+new file mode 100644
+index 000000000000..8989c00b03e5
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -0,0 +1,198 @@
++/dts-v1/;
++
++#include "bcm2710.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-smsc9514.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++#include "bcm271x-rpi-bt.dtsi"
++
++/ {
++	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
++	model = "Raspberry Pi 3 Model B";
++
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc1 = &mmcnr;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <7>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = <43>;
++		brcm,function = <4>; /* alt0:GPCLK2 */
++		brcm,pull = <0>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <32 33>;
++		brcm,function = <7>; /* alt3=UART0 */
++		brcm,pull = <0 2>;
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <40 41>;
++		brcm,function = <4>;
++	};
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&soc {
++	virtgpio: virtgpio {
++		compatible = "brcm,bcm2835-virtgpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		firmware = <&firmware>;
++		status = "okay";
++	};
++
++};
++
++&firmware {
++	expgpio: expgpio {
++		compatible = "raspberrypi,firmware-gpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		status = "okay";
++	};
++};
++
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "okay";
++};
++
++&bt {
++	max-speed = <921600>;
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&virtgpio 0 0>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "input";
++		gpios = <&expgpio 7 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&expgpio 4 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2710-rpi-cm3.dts b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+new file mode 100644
+index 000000000000..f972979281f5
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+@@ -0,0 +1,133 @@
++/dts-v1/;
++
++#include "bcm2710.dtsi"
++#include "bcm2709-rpi.dtsi"
++#include "bcm283x-rpi-csi0-2lane.dtsi"
++#include "bcm283x-rpi-csi1-4lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++/ {
++	compatible = "raspberrypi,3-compute-module", "brcm,bcm2837";
++	model = "Raspberry Pi Compute Module 3";
++};
++
++&uart0 {
++	status = "okay";
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins;
++		brcm,function;
++	};
++};
++
++&soc {
++	virtgpio: virtgpio {
++		compatible = "brcm,bcm2835-virtgpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		firmware = <&firmware>;
++		status = "okay";
++	};
++
++};
++
++&firmware {
++	expgpio: expgpio {
++		compatible = "raspberrypi,firmware-gpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		status = "okay";
++	};
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&virtgpio 0 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2710.dtsi b/arch/arm/boot/dts/bcm2710.dtsi
+new file mode 100644
+index 000000000000..4e47480dd933
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2710.dtsi
+@@ -0,0 +1,29 @@
++#include "bcm2837.dtsi"
++#include "bcm270x.dtsi"
++
++/ {
++	compatible = "brcm,bcm2837", "brcm,bcm2836";
++
++	arm-pmu {
++#ifdef RPI364
++		compatible = "arm,armv8-pmuv3", "arm,cortex-a7-pmu";
++#else
++		compatible = "arm,cortex-a7-pmu";
++#endif
++	};
++
++	soc {
++		/delete-node/ timer@7e003000;
++	};
++
++	__overrides__ {
++		arm_freq = <&cpu0>, "clock-frequency:0",
++		       <&cpu1>, "clock-frequency:0",
++		       <&cpu2>, "clock-frequency:0",
++		       <&cpu3>, "clock-frequency:0";
++	};
++};
++
++&vc4 {
++	status = "disabled";
++};
+diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+index 5395e8c2484e..3e67c2b634be 100644
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -2,7 +2,6 @@
+ /dts-v1/;
+ #include "bcm2711.dtsi"
+ #include "bcm2835-rpi.dtsi"
+-#include "bcm283x-rpi-usb-peripheral.dtsi"
+ 
+ #include <dt-bindings/reset/raspberrypi,firmware-reset.h>
+ 
+@@ -95,7 +94,7 @@ expgpio: gpio {
+ 				  "VDD_SD_IO_SEL",
+ 				  "CAM_GPIO",
+ 				  "SD_PWR_ON",
+-				  "";
++				  "SD_OC_N";
+ 		status = "okay";
+ 	};
+ 
+@@ -301,3 +300,306 @@ &vc4 {
+ &vec {
+ 	status = "disabled";
+ };
++
++// =============================================
++// Downstream rpi- changes
++
++#define BCM2711
++
++#include "bcm270x.dtsi"
++#include "bcm271x-rpi-bt.dtsi"
++
++/ {
++	soc {
++		/delete-node/ pixelvalve@7e807000;
++		/delete-node/ hdmi@7e902000;
++	};
++};
++
++#include "bcm2711-rpi.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++
++/ {
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc0 = &emmc2;
++		mmc1 = &mmcnr;
++		mmc2 = &sdhost;
++		/delete-property/ i2c2;
++		i2c3 = &i2c3;
++		i2c4 = &i2c4;
++		i2c5 = &i2c5;
++		i2c6 = &i2c6;
++		/delete-property/ intc;
++	};
++
++	/delete-node/ wifi-pwrseq;
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-0 = <&uart1_pins>;
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi3_pins: spi3_pins {
++		brcm,pins = <1 2 3>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi3_cs_pins: spi3_cs_pins {
++		brcm,pins = <0 24>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi4_pins: spi4_pins {
++		brcm,pins = <5 6 7>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi4_cs_pins: spi4_cs_pins {
++		brcm,pins = <4 25>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi5_pins: spi5_pins {
++		brcm,pins = <13 14 15>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi5_cs_pins: spi5_cs_pins {
++		brcm,pins = <12 26>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi6_pins: spi6_pins {
++		brcm,pins = <19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi6_cs_pins: spi6_cs_pins {
++		brcm,pins = <18 27>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c3_pins: i2c3 {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c4_pins: i2c4 {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c5_pins: i2c5 {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c6_pins: i2c6 {
++		brcm,pins = <22 23>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <BCM2835_FSEL_ALT3>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = "-"; // non-empty to keep btuart happy, //4 = 0
++				 // to fool pinctrl
++		brcm,function = <0>;
++		brcm,pull = <2>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <32 33>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++		brcm,pull = <0 2>;
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	uart2_pins: uart2_pins {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart3_pins: uart3_pins {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart4_pins: uart4_pins {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart5_pins: uart5_pins {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++/ {
++	__overrides__ {
++		/delete-property/ i2c2_baudrate;
++		/delete-property/ i2c2_iknowwhatimdoing;
++	};
++};
++
++// =============================================
++// Board specific stuff here
++
++&sdhost {
++	status = "disabled";
++};
++
++&phy1 {
++	led-modes = <0x00 0x08>; /* link/activity link */
++};
++
++&gpio {
++	audio_pins: audio_pins {
++		brcm,pins = <40 41>;
++		brcm,function = <4>;
++	};
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "default-on";
++		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&pwm1 {
++	status = "disabled";
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++
++		eth_led0 = <&phy1>,"led-modes:0";
++		eth_led1 = <&phy1>,"led-modes:4";
++
++		sd_poll_once = <&emmc2>, "non-removable?";
++		spi_dma4 = <&spi0>, "dmas:0=", <&dma40>,
++			   <&spi0>, "dmas:8=", <&dma40>;
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+new file mode 100644
+index 000000000000..0ca3a0126220
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -0,0 +1,609 @@
++// SPDX-License-Identifier: GPL-2.0
++/dts-v1/;
++#include "bcm2711.dtsi"
++#include "bcm2835-rpi.dtsi"
++
++/ {
++	compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
++	model = "Raspberry Pi Compute Module 4";
++
++	chosen {
++		/* 8250 auxiliary UART instead of pl011 */
++		stdout-path = "serial1:115200n8";
++	};
++
++	/* Will be filled by the bootloader */
++	memory@0 {
++		device_type = "memory";
++		reg = <0 0 0>;
++	};
++
++	aliases {
++		emmc2bus = &emmc2bus;
++		ethernet0 = &genet;
++		pcie0 = &pcie0;
++	};
++
++	leds {
++		act {
++			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++		};
++
++		pwr {
++			label = "PWR";
++			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++			default-state = "keep";
++			linux,default-trigger = "default-on";
++		};
++	};
++
++	wifi_pwrseq: wifi-pwrseq {
++		compatible = "mmc-pwrseq-simple";
++		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
++	};
++
++	sd_io_1v8_reg: sd_io_1v8_reg {
++		compatible = "regulator-gpio";
++		regulator-name = "vdd-sd-io";
++		regulator-min-microvolt = <1800000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		regulator-always-on;
++		regulator-settling-time-us = <5000>;
++		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
++		states = <1800000 0x1
++			  3300000 0x0>;
++		status = "okay";
++	};
++
++	sd_vcc_reg: sd_vcc_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "vcc-sd";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		enable-active-high;
++		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
++	};
++};
++
++&ddc0 {
++	status = "okay";
++};
++
++&ddc1 {
++	status = "okay";
++};
++
++&firmware {
++	expgpio: gpio {
++		compatible = "raspberrypi,firmware-gpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		gpio-line-names = "BT_ON",
++				  "WL_ON",
++				  "PWR_LED_OFF",
++				  "ANT1",
++				  "VDD_SD_IO_SEL",
++				  "CAM_GPIO",
++				  "SD_PWR_ON",
++				  "ANT2";
++		status = "okay";
++
++		ant1: ant1 {
++			gpio-hog;
++			gpios = <3 GPIO_ACTIVE_HIGH>;
++			output-high;
++		};
++
++		ant2: ant2 {
++			gpio-hog;
++			gpios = <7 GPIO_ACTIVE_HIGH>;
++			output-low;
++		};
++	};
++};
++
++&gpio {
++	/*
++	 * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
++	 * the official GPU firmware DT blob.
++	 *
++	 * Legend:
++	 * "FOO" = GPIO line named "FOO" on the schematic
++	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
++	 */
++	gpio-line-names = "ID_SDA",
++			  "ID_SCL",
++			  "SDA1",
++			  "SCL1",
++			  "GPIO_GCLK",
++			  "GPIO5",
++			  "GPIO6",
++			  "SPI_CE1_N",
++			  "SPI_CE0_N",
++			  "SPI_MISO",
++			  "SPI_MOSI",
++			  "SPI_SCLK",
++			  "GPIO12",
++			  "GPIO13",
++			  /* Serial port */
++			  "TXD1",
++			  "RXD1",
++			  "GPIO16",
++			  "GPIO17",
++			  "GPIO18",
++			  "GPIO19",
++			  "GPIO20",
++			  "GPIO21",
++			  "GPIO22",
++			  "GPIO23",
++			  "GPIO24",
++			  "GPIO25",
++			  "GPIO26",
++			  "GPIO27",
++			  "RGMII_MDIO",
++			  "RGMIO_MDC",
++			  /* Used by BT module */
++			  "CTS0",
++			  "RTS0",
++			  "TXD0",
++			  "RXD0",
++			  /* Used by Wifi */
++			  "SD1_CLK",
++			  "SD1_CMD",
++			  "SD1_DATA0",
++			  "SD1_DATA1",
++			  "SD1_DATA2",
++			  "SD1_DATA3",
++			  /* Shared with SPI flash */
++			  "PWM0_MISO",
++			  "PWM1_MOSI",
++			  "STATUS_LED_G_CLK",
++			  "SPIFLASH_CE_N",
++			  "SDA0",
++			  "SCL0",
++			  "RGMII_RXCLK",
++			  "RGMII_RXCTL",
++			  "RGMII_RXD0",
++			  "RGMII_RXD1",
++			  "RGMII_RXD2",
++			  "RGMII_RXD3",
++			  "RGMII_TXCLK",
++			  "RGMII_TXCTL",
++			  "RGMII_TXD0",
++			  "RGMII_TXD1",
++			  "RGMII_TXD2",
++			  "RGMII_TXD3";
++};
++
++&hdmi0 {
++	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
++	clock-names = "hdmi", "bvb", "audio", "cec";
++	status = "okay";
++};
++
++&hdmi1 {
++	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
++	clock-names = "hdmi", "bvb", "audio", "cec";
++	status = "okay";
++};
++
++&hvs {
++	clocks = <&firmware_clocks 4>;
++};
++
++&pixelvalve0 {
++	status = "okay";
++};
++
++&pixelvalve1 {
++	status = "okay";
++};
++
++&pixelvalve2 {
++	status = "okay";
++};
++
++&pixelvalve4 {
++	status = "okay";
++};
++
++&vc4 {
++	status = "okay";
++};
++
++&vec {
++	status = "disabled";
++};
++
++&pwm1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
++	status = "okay";
++};
++
++/* SDHCI is used to control the SDIO for wireless */
++&sdhci {
++	#address-cells = <1>;
++	#size-cells = <0>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&emmc_gpio34>;
++	bus-width = <4>;
++	non-removable;
++	mmc-pwrseq = <&wifi_pwrseq>;
++	status = "okay";
++
++	brcmf: wifi@1 {
++		reg = <1>;
++		compatible = "brcm,bcm4329-fmac";
++	};
++};
++
++/* EMMC2 is used to drive the EMMC card */
++&emmc2 {
++	bus-width = <8>;
++	vqmmc-supply = <&sd_io_1v8_reg>;
++	vmmc-supply = <&sd_vcc_reg>;
++	broken-cd;
++	status = "okay";
++};
++
++&genet {
++	phy-handle = <&phy1>;
++	phy-mode = "rgmii-rxid";
++	status = "okay";
++};
++
++&genet_mdio {
++	phy1: ethernet-phy@1 {
++		/* No PHY interrupt */
++		reg = <0x1>;
++	};
++};
++
++/* uart0 communicates with the BT module */
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
++	uart-has-rtscts;
++	status = "okay";
++
++	bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <2000000>;
++		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
++	};
++};
++
++/* uart1 is mapped to the pin header */
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_gpio14>;
++	status = "okay";
++};
++
++&vchiq {
++	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++// =============================================
++// Downstream rpi- changes
++
++#define BCM2711
++
++#include "bcm270x.dtsi"
++#include "bcm271x-rpi-bt.dtsi"
++
++/ {
++	soc {
++		/delete-node/ pixelvalve@7e807000;
++		/delete-node/ hdmi@7e902000;
++	};
++};
++
++#include "bcm2711-rpi.dtsi"
++#include "bcm283x-rpi-csi0-2lane.dtsi"
++#include "bcm283x-rpi-csi1-4lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++
++/ {
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc0 = &emmc2;
++		mmc1 = &mmcnr;
++		mmc2 = &sdhost;
++		/delete-property/ i2c2;
++		i2c3 = &i2c3;
++		i2c4 = &i2c4;
++		i2c5 = &i2c5;
++		i2c6 = &i2c6;
++		/delete-property/ intc;
++	};
++
++	/delete-node/ wifi-pwrseq;
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-0 = <&uart1_pins>;
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi3_pins: spi3_pins {
++		brcm,pins = <1 2 3>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi3_cs_pins: spi3_cs_pins {
++		brcm,pins = <0 24>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi4_pins: spi4_pins {
++		brcm,pins = <5 6 7>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi4_cs_pins: spi4_cs_pins {
++		brcm,pins = <4 25>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi5_pins: spi5_pins {
++		brcm,pins = <13 14 15>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi5_cs_pins: spi5_cs_pins {
++		brcm,pins = <12 26>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi6_pins: spi6_pins {
++		brcm,pins = <19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi6_cs_pins: spi6_cs_pins {
++		brcm,pins = <18 27>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c3_pins: i2c3 {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c4_pins: i2c4 {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c5_pins: i2c5 {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c6_pins: i2c6 {
++		brcm,pins = <22 23>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <BCM2835_FSEL_ALT3>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = "-"; // non-empty to keep btuart happy, //4 = 0
++				 // to fool pinctrl
++		brcm,function = <0>;
++		brcm,pull = <2>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <32 33>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++		brcm,pull = <0 2>;
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	uart2_pins: uart2_pins {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart3_pins: uart3_pins {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart4_pins: uart4_pins {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart5_pins: uart5_pins {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++/ {
++	__overrides__ {
++		/delete-property/ i2c2_baudrate;
++		/delete-property/ i2c2_iknowwhatimdoing;
++	};
++};
++
++// =============================================
++// Board specific stuff here
++
++&pcie0 {
++       brcm,enable-l1ss;
++};
++
++&sdhost {
++	status = "disabled";
++};
++
++&phy1 {
++	led-modes = <0x00 0x08>; /* link/activity link */
++};
++
++&gpio {
++	audio_pins: audio_pins {
++		brcm,pins = <40 41>;
++		brcm,function = <4>;
++	};
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "default-on";
++		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&pwm1 {
++	status = "disabled";
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++
++		eth_led0 = <&phy1>,"led-modes:0";
++		eth_led1 = <&phy1>,"led-modes:4";
++
++		ant1 =  <&ant1>,"output-high?=on",
++			<&ant1>, "output-low?=off",
++			<&ant2>, "output-high?=off",
++			<&ant2>, "output-low?=on";
++		ant2 =  <&ant1>,"output-high?=off",
++			<&ant1>, "output-low?=on",
++			<&ant2>, "output-high?=on",
++			<&ant2>, "output-low?=off";
++		noant = <&ant1>,"output-high?=off",
++			<&ant1>, "output-low?=on",
++			<&ant2>, "output-high?=off",
++			<&ant2>, "output-low?=on";
++
++		sd_poll_once = <&emmc2>, "non-removable?";
++		spi_dma4 = <&spi0>, "dmas:0=", <&dma40>,
++			   <&spi0>, "dmas:8=", <&dma40>;
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2711-rpi.dtsi b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+new file mode 100644
+index 000000000000..4f903a787d65
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -0,0 +1,201 @@
++// SPDX-License-Identifier: GPL-2.0
++#include "bcm270x-rpi.dtsi"
++
++/ {
++	__overrides__ {
++		arm_freq;
++	};
++
++	v3dbus: v3dbus {
++		compatible = "simple-bus";
++		#address-cells = <1>;
++		#size-cells = <2>;
++		ranges = <0x7c500000  0x0 0xfc500000  0x0 0x03300000>,
++			 <0x40000000  0x0 0xff800000  0x0 0x00800000>;
++		dma-ranges = <0x00000000  0x0 0x00000000  0x4 0x00000000>;
++
++		v3d: v3d@7ec04000 {
++			compatible = "brcm,2711-v3d";
++			reg =
++			    <0x7ec00000  0x0 0x4000>,
++			    <0x7ec04000  0x0 0x4000>;
++			reg-names = "hub", "core0";
++
++			power-domains = <&pm BCM2835_POWER_DOMAIN_GRAFX_V3D>;
++			resets = <&pm BCM2835_RESET_V3D>;
++			clocks = <&firmware_clocks 5>;
++			clocks-names = "v3d";
++			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
++			status = "disabled";
++		};
++	};
++
++	scb: scb {
++	     /* Add a label */
++	};
++};
++
++&cma {
++	/* Limit cma to the lower 768MB to allow room for HIGHMEM on 32-bit */
++	alloc-ranges = <0x0 0x00000000 0x30000000>;
++};
++
++&scb {
++	ranges = <0x0 0x7c000000  0x0 0xfc000000  0x0 0x03800000>,
++		 <0x0 0x40000000  0x0 0xff800000  0x0 0x00800000>,
++		 <0x6 0x00000000  0x6 0x00000000  0x0 0x40000000>,
++		 <0x0 0x00000000  0x0 0x00000000  0x0 0xfc000000>;
++	dma-ranges = <0x0 0x00000000  0x0 0x00000000  0x4 0x00000000>;
++
++	dma40: dma@7e007b00 {
++		compatible = "brcm,bcm2711-dma";
++		reg = <0x0 0x7e007b00  0x0 0x400>;
++		interrupts =
++			<GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>, /* dma4 11 */
++			<GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>, /* dma4 12 */
++			<GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>, /* dma4 13 */
++			<GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>; /* dma4 14 */
++		interrupt-names = "dma11",
++			"dma12",
++			"dma13",
++			"dma14";
++		#dma-cells = <1>;
++		brcm,dma-channel-mask = <0x7800>;
++	};
++
++	xhci: xhci@7e9c0000 {
++		compatible = "generic-xhci";
++		status = "disabled";
++		reg = <0x0 0x7e9c0000  0x0 0x100000>;
++		interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_HIGH>;
++		power-domains = <&power RPI_POWER_DOMAIN_USB>;
++	};
++
++	hevc-decoder@7eb00000 {
++		compatible = "raspberrypi,rpivid-hevc-decoder";
++		reg = <0x0 0x7eb00000  0x0 0x10000>;
++		status = "okay";
++	};
++
++	rpivid-local-intc@7eb10000 {
++		compatible = "raspberrypi,rpivid-local-intc";
++		reg = <0x0 0x7eb10000  0x0 0x1000>;
++		status = "okay";
++		interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
++	};
++
++	h264-decoder@7eb20000 {
++		compatible = "raspberrypi,rpivid-h264-decoder";
++		reg = <0x0 0x7eb20000  0x0 0x10000>;
++		status = "okay";
++	};
++
++	vp9-decoder@7eb30000 {
++		compatible = "raspberrypi,rpivid-vp9-decoder";
++		reg = <0x0 0x7eb30000  0x0 0x10000>;
++		status = "okay";
++	};
++};
++
++&dma40 {
++	/* The VPU firmware uses DMA channel 11 for VCHIQ */
++	brcm,dma-channel-mask = <0x7000>;
++};
++
++&vchiq {
++	compatible = "brcm,bcm2711-vchiq";
++};
++
++&firmwarekms {
++	compatible = "raspberrypi,rpi-firmware-kms-2711";
++	interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&smi {
++	interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&mmc {
++	interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&mmcnr {
++	interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&csi0 {
++	interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&csi1 {
++	interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&random {
++	compatible = "brcm,bcm2711-rng200";
++	status = "okay";
++};
++
++&usb {
++	/* Enable the FIQ support */
++	reg = <0x7e980000 0x10000>,
++	      <0x7e00b200 0x200>;
++	interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
++		     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
++	status = "disabled";
++};
++
++&gpio {
++	interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
++		     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&emmc2 {
++	mmc-ddr-3_3v;
++};
++
++&vc4 {
++	status = "disabled";
++};
++
++&pixelvalve0 {
++	status = "disabled";
++};
++
++&pixelvalve1 {
++	status = "disabled";
++};
++
++&pixelvalve2 {
++	status = "disabled";
++};
++
++&pixelvalve3 {
++	status = "disabled";
++};
++
++&pixelvalve4 {
++	status = "disabled";
++};
++
++&hdmi0 {
++	dmas = <&dma (10|(1<<27))>;
++	status = "disabled";
++};
++
++&ddc0 {
++	status = "disabled";
++};
++
++&hdmi1 {
++	dmas = <&dma (17|(1<<27))>;
++	status = "disabled";
++};
++
++&ddc1 {
++	status = "disabled";
++};
++
++&dvp {
++	status = "disabled";
++};
+diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
+index 3d040f6e2a20..6e0339266027 100644
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -318,7 +318,8 @@ hdmi0: hdmi@7ef00700 {
+ 			      <0x7ef01f00 0x400>,
+ 			      <0x7ef00200 0x80>,
+ 			      <0x7ef04300 0x100>,
+-			      <0x7ef20000 0x100>;
++			      <0x7ef20000 0x100>,
++			      <0x7ef00100 0x30>;
+ 			reg-names = "hdmi",
+ 				    "dvp",
+ 				    "phy",
+@@ -327,12 +328,18 @@ hdmi0: hdmi@7ef00700 {
+ 				    "metadata",
+ 				    "csc",
+ 				    "cec",
+-				    "hd";
++				    "hd",
++				    "intr2";
++			clocks = <&firmware_clocks 13>,
++				 <&firmware_clocks 14>,
++				 <&dvp 0>,
++				 <&clk_27MHz>;
+ 			clock-names = "hdmi", "bvb", "audio", "cec";
+ 			resets = <&dvp 0>;
+ 			ddc = <&ddc0>;
+ 			dmas = <&dma 10>;
+ 			dma-names = "audio-rx";
++			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ 			status = "disabled";
+ 		};
+ 
+@@ -354,7 +361,8 @@ hdmi1: hdmi@7ef05700 {
+ 			      <0x7ef06f00 0x400>,
+ 			      <0x7ef00280 0x80>,
+ 			      <0x7ef09300 0x100>,
+-			      <0x7ef20000 0x100>;
++			      <0x7ef20000 0x100>,
++			      <0x7ef00100 0x30>;
+ 			reg-names = "hdmi",
+ 				    "dvp",
+ 				    "phy",
+@@ -363,12 +371,18 @@ hdmi1: hdmi@7ef05700 {
+ 				    "metadata",
+ 				    "csc",
+ 				    "cec",
+-				    "hd";
++				    "hd",
++				    "intr2";
+ 			ddc = <&ddc1>;
+ 			clock-names = "hdmi", "bvb", "audio", "cec";
++			clocks = <&firmware_clocks 13>,
++				 <&firmware_clocks 14>,
++				 <&dvp 0>,
++				 <&clk_27MHz>;
+ 			resets = <&dvp 1>;
+ 			dmas = <&dma 17>;
+ 			dma-names = "audio-rx";
++			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ 			status = "disabled";
+ 		};
+ 
+@@ -468,14 +482,14 @@ cpu3: cpu@3 {
+ 	scb {
+ 		compatible = "simple-bus";
+ 		#address-cells = <2>;
+-		#size-cells = <1>;
++		#size-cells = <2>;
+ 
+-		ranges = <0x0 0x7c000000  0x0 0xfc000000  0x03800000>,
+-			 <0x6 0x00000000  0x6 0x00000000  0x40000000>;
++		ranges = <0x0 0x7c000000  0x0 0xfc000000  0x0 0x03800000>,
++			 <0x6 0x00000000  0x6 0x00000000  0x0 0x40000000>;
+ 
+ 		pcie0: pcie@7d500000 {
+ 			compatible = "brcm,bcm2711-pcie";
+-			reg = <0x0 0x7d500000 0x9310>;
++			reg = <0x0 0x7d500000  0x0 0x9310>;
+ 			device_type = "pci";
+ 			#address-cells = <3>;
+ 			#interrupt-cells = <1>;
+@@ -503,7 +517,7 @@ pcie0: pcie@7d500000 {
+ 
+ 		genet: ethernet@7d580000 {
+ 			compatible = "brcm,bcm2711-genet-v5";
+-			reg = <0x0 0x7d580000 0x10000>;
++			reg = <0x0 0x7d580000  0x0 0x10000>;
+ 			#address-cells = <0x1>;
+ 			#size-cells = <0x1>;
+ 			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
+@@ -1010,7 +1024,7 @@ &cma {
+ 	alloc-ranges = <0x0 0x00000000 0x40000000>;
+ };
+ 
+-&i2c0 {
++&i2c0if {
+ 	compatible = "brcm,bcm2711-i2c", "brcm,bcm2835-i2c";
+ 	interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+ };
+diff --git a/arch/arm/boot/dts/bcm271x-rpi-bt.dtsi b/arch/arm/boot/dts/bcm271x-rpi-bt.dtsi
+new file mode 100644
+index 000000000000..6b9b79f74cf3
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm271x-rpi-bt.dtsi
+@@ -0,0 +1,26 @@
++// SPDX-License-Identifier: GPL-2.0
++
++&uart0 {
++	bt: bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <3000000>;
++		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
++		status = "disabled";
++	};
++};
++
++&uart1 {
++	minibt: bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <460800>;
++		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
++		status = "disabled";
++	};
++};
++
++/ {
++	__overrides__ {
++		krnbt = <&bt>,"status";
++		krnbt_baudrate = <&bt>,"max-speed:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/bcm2835-common.dtsi b/arch/arm/boot/dts/bcm2835-common.dtsi
+index 4119271c979d..bd77ba3a3562 100644
+--- a/arch/arm/boot/dts/bcm2835-common.dtsi
++++ b/arch/arm/boot/dts/bcm2835-common.dtsi
+@@ -116,12 +116,14 @@ hdmi: hdmi@7e902000 {
+ 			compatible = "brcm,bcm2835-hdmi";
+ 			reg = <0x7e902000 0x600>,
+ 			      <0x7e808000 0x100>;
++			reg-names = "hdmi",
++				    "hd";
+ 			interrupts = <2 8>, <2 9>;
+ 			ddc = <&i2c2>;
+ 			clocks = <&clocks BCM2835_PLLH_PIX>,
+ 				 <&clocks BCM2835_CLOCK_HSM>;
+ 			clock-names = "pixel", "hdmi";
+-			dmas = <&dma 17>;
++			dmas = <&dma (17|(1<<27))>;
+ 			dma-names = "audio-rx";
+ 			status = "disabled";
+ 		};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+index 40b9405f1a8e..d2384d8e8555 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+@@ -126,3 +126,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 28&29 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
+index 11edb581dbaf..4ceca674b752 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
+@@ -121,3 +121,10 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c0 on camera/display connector is gpio 0&1. Not exposed on header.
++ * To avoid having to remap everything, map both ports to gpios 0&1
++ */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio0>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+index 1b435c64bd9c..8f2d10d82fa1 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+@@ -128,3 +128,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 28&29 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+index a23c25c00eea..547c88a3ae9f 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+@@ -121,3 +121,10 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c0 on camera/display connector is gpio 0&1. Not exposed on header.
++ * To avoid having to remap everything, map both ports to gpios 0&1
++ */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio0>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
+index 1b63d6b19750..073fc99ef8a2 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
+@@ -116,3 +116,10 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* camera/display connector use BSC1 on GPIOS 2&3.
++ * To avoid having to remap everything, map both ports to gpios 0&1
++ */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio0>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts b/arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts
+index a75c882e6575..95564c93a645 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts
+@@ -95,3 +95,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* WHAT TO DO HERE? */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+index 33b2b77aa47d..3ea5c7e6be54 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+@@ -149,3 +149,8 @@ &uart1 {
+ 	pinctrl-0 = <&uart1_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 28&29 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+index 6f9b3a908f28..a0eabab12c99 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts
+@@ -117,3 +117,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 28&29 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
+index 87ddcad76083..1b16cb9ccb88 100644
+--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
+@@ -19,6 +19,11 @@ firmware: firmware {
+ 
+ 			mboxes = <&mailbox>;
+ 			dma-ranges;
++
++			firmware_clocks: clocks {
++				compatible = "raspberrypi,firmware-clocks";
++				#clock-cells = <1>;
++			};
+ 		};
+ 
+ 		power: power {
+@@ -49,13 +54,17 @@ alt0: alt0 {
+ 	};
+ };
+ 
+-&i2c0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&i2c0_gpio0>;
++&i2c0if {
+ 	status = "okay";
+ 	clock-frequency = <100000>;
+ };
+ 
++&i2c0mux {
++	pinctrl-0 = <&i2c0_gpio0>;
++	/* pinctrl-1 varies based on platform */
++	status = "okay";
++};
++
+ &i2c1 {
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&i2c1_gpio2>;
+diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
+index 0549686134ea..2ea891228ea0 100644
+--- a/arch/arm/boot/dts/bcm2835.dtsi
++++ b/arch/arm/boot/dts/bcm2835.dtsi
+@@ -19,7 +19,7 @@ cpu@0 {
+ 
+ 	soc {
+ 		ranges = <0x7e000000 0x20000000 0x02000000>;
+-		dma-ranges = <0x40000000 0x00000000 0x20000000>;
++		dma-ranges = <0x80000000 0x00000000 0x20000000>;
+ 	};
+ 
+ 	arm-pmu {
+diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+index d8af8eeac7b6..bf22b74359d8 100644
+--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+@@ -128,3 +128,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 28&29 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+index 77099a7871b0..9529c0475673 100644
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+@@ -178,3 +178,8 @@ &uart1 {
+ 	pinctrl-0 = <&uart1_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 44&45 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio44>;
++};
+diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+index 61010266ca9a..40cb269aed0f 100644
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+@@ -181,3 +181,8 @@ &uart1 {
+ 	pinctrl-0 = <&uart1_gpio14>;
+ 	status = "okay";
+ };
++
++/* i2c on camera/display connector is gpio 44&45 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio44>;
++};
+diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+index dd4a48604097..8f16b6b3fe08 100644
+--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+@@ -174,3 +174,8 @@ &sdhost {
+ 	status = "okay";
+ 	bus-width = <4>;
+ };
++
++/* i2c on camera/display connector is gpio 44&45 */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio44>;
++};
+diff --git a/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts b/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
+index 588d9411ceb6..dde209ade51b 100644
+--- a/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
++++ b/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
+@@ -94,3 +94,8 @@ &uart0 {
+ 	pinctrl-0 = <&uart0_gpio14>;
+ 	status = "okay";
+ };
++
++/* WHAT TO DO HERE? */
++&i2c0mux {
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi b/arch/arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi
+new file mode 100644
+index 000000000000..6e4ce8622b47
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-csi0-2lane.dtsi
+@@ -0,0 +1,4 @@
++// SPDX-License-Identifier: GPL-2.0-only
++&csi0 {
++	brcm,num-data-lanes = <2>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi b/arch/arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi
+new file mode 100644
+index 000000000000..6938f4daacdc
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi
+@@ -0,0 +1,4 @@
++// SPDX-License-Identifier: GPL-2.0-only
++&csi1 {
++	brcm,num-data-lanes = <2>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi b/arch/arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi
+new file mode 100644
+index 000000000000..b37037437bee
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-csi1-4lane.dtsi
+@@ -0,0 +1,4 @@
++// SPDX-License-Identifier: GPL-2.0-only
++&csi1 {
++	brcm,num-data-lanes = <4>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_28.dtsi b/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_28.dtsi
+new file mode 100644
+index 000000000000..38f0074bce3f
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_28.dtsi
+@@ -0,0 +1,4 @@
++&i2c0mux {
++	pinctrl-0 = <&i2c0_gpio0>;
++	pinctrl-1 = <&i2c0_gpio28>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi b/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi
+new file mode 100644
+index 000000000000..119946d878db
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-i2c0mux_0_44.dtsi
+@@ -0,0 +1,4 @@
++&i2c0mux {
++	pinctrl-0 = <&i2c0_gpio0>;
++	pinctrl-1 = <&i2c0_gpio44>;
++};
+diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
+deleted file mode 100644
+index 0ff0e9e25327..000000000000
+--- a/arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi
++++ /dev/null
+@@ -1,7 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-&usb {
+-	dr_mode = "peripheral";
+-	g-rx-fifo-size = <256>;
+-	g-np-tx-fifo-size = <32>;
+-	g-tx-fifo-size = <256 256 512 512 512 768 768>;
+-};
+diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
+index 0f3be55201a5..6d305b8b5ebe 100644
+--- a/arch/arm/boot/dts/bcm283x.dtsi
++++ b/arch/arm/boot/dts/bcm283x.dtsi
+@@ -334,7 +334,7 @@ spi: spi@7e204000 {
+ 			status = "disabled";
+ 		};
+ 
+-		i2c0: i2c@7e205000 {
++		i2c0if: i2c@7e205000 {
+ 			compatible = "brcm,bcm2835-i2c";
+ 			reg = <0x7e205000 0x200>;
+ 			interrupts = <2 21>;
+@@ -344,6 +344,30 @@ i2c0: i2c@7e205000 {
+ 			status = "disabled";
+ 		};
+ 
++		i2c0mux: i2c0mux {
++			compatible = "i2c-mux-pinctrl";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			i2c-parent = <&i2c0if>;
++
++			pinctrl-names = "i2c0", "i2c_csi_dsi";
++
++			status = "disabled";
++
++			i2c0: i2c@0 {
++				reg = <0>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++			};
++
++			i2c_csi_dsi: i2c@1 {
++				reg = <1>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++			};
++		};
++
+ 		dpi: dpi@7e208000 {
+ 			compatible = "brcm,bcm2835-dpi";
+ 			reg = <0x7e208000 0x8c>;
+diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
+new file mode 100644
+index 000000000000..b30568e29526
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -0,0 +1,216 @@
++# Overlays for the Raspberry Pi platform
++
++dtb-$(CONFIG_ARCH_BCM2835) += overlay_map.dtb
++
++dtbo-$(CONFIG_ARCH_BCM2835) += \
++	act-led.dtbo \
++	adafruit18.dtbo \
++	adau1977-adc.dtbo \
++	adau7002-simple.dtbo \
++	ads1015.dtbo \
++	ads1115.dtbo \
++	ads7846.dtbo \
++	adv7282m.dtbo \
++	adv728x-m.dtbo \
++	akkordion-iqdacplus.dtbo \
++	allo-boss-dac-pcm512x-audio.dtbo \
++	allo-digione.dtbo \
++	allo-katana-dac-audio.dtbo \
++	allo-piano-dac-pcm512x-audio.dtbo \
++	allo-piano-dac-plus-pcm512x-audio.dtbo \
++	anyspi.dtbo \
++	apds9960.dtbo \
++	applepi-dac.dtbo \
++	at86rf233.dtbo \
++	audioinjector-addons.dtbo \
++	audioinjector-isolated-soundcard.dtbo \
++	audioinjector-ultra.dtbo \
++	audioinjector-wm8731-audio.dtbo \
++	audiosense-pi.dtbo \
++	audremap.dtbo \
++	balena-fin.dtbo \
++	cma.dtbo \
++	dht11.dtbo \
++	dionaudio-loco.dtbo \
++	dionaudio-loco-v2.dtbo \
++	disable-bt.dtbo \
++	disable-wifi.dtbo \
++	dpi18.dtbo \
++	dpi24.dtbo \
++	draws.dtbo \
++	dwc-otg.dtbo \
++	dwc2.dtbo \
++	enc28j60.dtbo \
++	enc28j60-spi2.dtbo \
++	exc3000.dtbo \
++	fe-pi-audio.dtbo \
++	fsm-demo.dtbo \
++	ghost-amp.dtbo \
++	goodix.dtbo \
++	googlevoicehat-soundcard.dtbo \
++	gpio-fan.dtbo \
++	gpio-ir.dtbo \
++	gpio-ir-tx.dtbo \
++	gpio-key.dtbo \
++	gpio-no-bank0-irq.dtbo \
++	gpio-no-irq.dtbo \
++	gpio-poweroff.dtbo \
++	gpio-shutdown.dtbo \
++	hd44780-lcd.dtbo \
++	hdmi-backlight-hwhack-gpio.dtbo \
++	hifiberry-amp.dtbo \
++	hifiberry-dac.dtbo \
++	hifiberry-dacplus.dtbo \
++	hifiberry-dacplusadc.dtbo \
++	hifiberry-dacplusadcpro.dtbo \
++	hifiberry-dacplusdsp.dtbo \
++	hifiberry-dacplushd.dtbo \
++	hifiberry-digi.dtbo \
++	hifiberry-digi-pro.dtbo \
++	highperi.dtbo \
++	hy28a.dtbo \
++	hy28b.dtbo \
++	hy28b-2017.dtbo \
++	i-sabre-q2m.dtbo \
++	i2c-bcm2708.dtbo \
++	i2c-gpio.dtbo \
++	i2c-mux.dtbo \
++	i2c-pwm-pca9685a.dtbo \
++	i2c-rtc.dtbo \
++	i2c-rtc-gpio.dtbo \
++	i2c-sensor.dtbo \
++	i2c0.dtbo \
++	i2c1.dtbo \
++	i2c3.dtbo \
++	i2c4.dtbo \
++	i2c5.dtbo \
++	i2c6.dtbo \
++	i2s-gpio28-31.dtbo \
++	ilitek251x.dtbo \
++	imx219.dtbo \
++	imx290.dtbo \
++	imx477.dtbo \
++	iqaudio-codec.dtbo \
++	iqaudio-dac.dtbo \
++	iqaudio-dacplus.dtbo \
++	iqaudio-digi-wm8804-audio.dtbo \
++	irs1125.dtbo \
++	jedec-spi-nor.dtbo \
++	justboom-both.dtbo \
++	justboom-dac.dtbo \
++	justboom-digi.dtbo \
++	ltc294x.dtbo \
++	max98357a.dtbo \
++	maxtherm.dtbo \
++	mbed-dac.dtbo \
++	mcp23017.dtbo \
++	mcp23s17.dtbo \
++	mcp2515-can0.dtbo \
++	mcp2515-can1.dtbo \
++	mcp3008.dtbo \
++	mcp3202.dtbo \
++	mcp342x.dtbo \
++	media-center.dtbo \
++	merus-amp.dtbo \
++	midi-uart0.dtbo \
++	midi-uart1.dtbo \
++	miniuart-bt.dtbo \
++	mmc.dtbo \
++	mpu6050.dtbo \
++	mz61581.dtbo \
++	ov5647.dtbo \
++	ov7251.dtbo \
++	ov9281.dtbo \
++	papirus.dtbo \
++	pca953x.dtbo \
++	pibell.dtbo \
++	pifacedigital.dtbo \
++	piglow.dtbo \
++	piscreen.dtbo \
++	piscreen2r.dtbo \
++	pisound.dtbo \
++	pitft22.dtbo \
++	pitft28-capacitive.dtbo \
++	pitft28-resistive.dtbo \
++	pitft35-resistive.dtbo \
++	pps-gpio.dtbo \
++	pwm.dtbo \
++	pwm-2chan.dtbo \
++	pwm-ir-tx.dtbo \
++	qca7000.dtbo \
++	rotary-encoder.dtbo \
++	rpi-backlight.dtbo \
++	rpi-cirrus-wm5102.dtbo \
++	rpi-dac.dtbo \
++	rpi-display.dtbo \
++	rpi-ft5406.dtbo \
++	rpi-poe.dtbo \
++	rpi-proto.dtbo \
++	rpi-sense.dtbo \
++	rpi-tv.dtbo \
++	rpivid-v4l2.dtbo \
++	rra-digidac1-wm8741-audio.dtbo \
++	sainsmart18.dtbo \
++	sc16is750-i2c.dtbo \
++	sc16is752-i2c.dtbo \
++	sc16is752-spi0.dtbo \
++	sc16is752-spi1.dtbo \
++	sdhost.dtbo \
++	sdio.dtbo \
++	sdtweak.dtbo \
++	sh1106-spi.dtbo \
++	smi.dtbo \
++	smi-dev.dtbo \
++	smi-nand.dtbo \
++	spi-gpio35-39.dtbo \
++	spi-gpio40-45.dtbo \
++	spi-rtc.dtbo \
++	spi0-1cs.dtbo \
++	spi0-2cs.dtbo \
++	spi1-1cs.dtbo \
++	spi1-2cs.dtbo \
++	spi1-3cs.dtbo \
++	spi2-1cs.dtbo \
++	spi2-2cs.dtbo \
++	spi2-3cs.dtbo \
++	spi3-1cs.dtbo \
++	spi3-2cs.dtbo \
++	spi4-1cs.dtbo \
++	spi4-2cs.dtbo \
++	spi5-1cs.dtbo \
++	spi5-2cs.dtbo \
++	spi6-1cs.dtbo \
++	spi6-2cs.dtbo \
++	ssd1306.dtbo \
++	ssd1306-spi.dtbo \
++	ssd1351-spi.dtbo \
++	superaudioboard.dtbo \
++	sx150x.dtbo \
++	tc358743.dtbo \
++	tc358743-audio.dtbo \
++	tinylcd35.dtbo \
++	tpm-slb9670.dtbo \
++	uart0.dtbo \
++	uart1.dtbo \
++	uart2.dtbo \
++	uart3.dtbo \
++	uart4.dtbo \
++	uart5.dtbo \
++	udrc.dtbo \
++	upstream.dtbo \
++	upstream-pi4.dtbo \
++	vc4-fkms-v3d.dtbo \
++	vc4-kms-kippah-7inch.dtbo \
++	vc4-kms-v3d.dtbo \
++	vc4-kms-v3d-pi4.dtbo \
++	vga666.dtbo \
++	w1-gpio.dtbo \
++	w1-gpio-pullup.dtbo \
++	w5500.dtbo \
++	wittypi.dtbo
++
++targets += dtbs dtbs_install
++targets += $(dtbo-y)
++
++always-y	:= $(dtbo-y)
++clean-files	:= *.dtbo
+diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
+new file mode 100644
+index 000000000000..eff90baed406
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/README
+@@ -0,0 +1,3040 @@
++Introduction
++============
++
++This directory contains Device Tree overlays. Device Tree makes it possible
++to support many hardware configurations with a single kernel and without the
++need to explicitly load or blacklist kernel modules. Note that this isn't a
++"pure" Device Tree configuration (c.f. MACH_BCM2835) - some on-board devices
++are still configured by the board support code, but the intention is to
++eventually reach that goal.
++
++On Raspberry Pi, Device Tree usage is controlled from /boot/config.txt. By
++default, the Raspberry Pi kernel boots with device tree enabled. You can
++completely disable DT usage (for now) by adding:
++
++    device_tree=
++
++to your config.txt, which should cause your Pi to revert to the old way of
++doing things after a reboot.
++
++In /boot you will find a .dtb for each base platform. This describes the
++hardware that is part of the Raspberry Pi board. The loader (start.elf and its
++siblings) selects the .dtb file appropriate for the platform by name, and reads
++it into memory. At this point, all of the optional interfaces (i2c, i2s, spi)
++are disabled, but they can be enabled using Device Tree parameters:
++
++    dtparam=i2c=on,i2s=on,spi=on
++
++However, this shouldn't be necessary in many use cases because loading an
++overlay that requires one of those interfaces will cause it to be enabled
++automatically, and it is advisable to only enable interfaces if they are
++needed.
++
++Configuring additional, optional hardware is done using Device Tree overlays
++(see below).
++
++GPIO numbering uses the hardware pin numbering scheme (aka BCM scheme) and
++not the physical pin numbers.
++
++raspi-config
++============
++
++The Advanced Options section of the raspi-config utility can enable and disable
++Device Tree use, as well as toggling the I2C and SPI interfaces. Note that it
++is possible to both enable an interface and blacklist the driver, if for some
++reason you should want to defer the loading.
++
++Modules
++=======
++
++As well as describing the hardware, Device Tree also gives enough information
++to allow suitable driver modules to be located and loaded, with the corollary
++that unneeded modules are not loaded. As a result it should be possible to
++remove lines from /etc/modules, and /etc/modprobe.d/raspi-blacklist.conf can
++have its contents deleted (or commented out).
++
++Using Overlays
++==============
++
++Overlays are loaded using the "dtoverlay" config.txt setting. As an example,
++consider I2C Real Time Clock drivers. In the pre-DT world these would be loaded
++by writing a magic string comprising a device identifier and an I2C address to
++a special file in /sys/class/i2c-adapter, having first loaded the driver for
++the I2C interface and the RTC device - something like this:
++
++    modprobe i2c-bcm2835
++    modprobe rtc-ds1307
++    echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device
++
++With DT enabled, this becomes a line in config.txt:
++
++    dtoverlay=i2c-rtc,ds1307
++
++This causes the file /boot/overlays/i2c-rtc.dtbo to be loaded and a "node"
++describing the DS1307 I2C device to be added to the Device Tree for the Pi. By
++default it usees address 0x68, but this can be modified with an additional DT
++parameter:
++
++    dtoverlay=i2c-rtc,ds1307,addr=0x68
++
++Parameters usually have default values, although certain parameters are
++mandatory. See the list of overlays below for a description of the parameters
++and their defaults.
++
++The Overlay and Parameter Reference
++===================================
++
++N.B. When editing this file, please preserve the indentation levels to make it
++simple to parse programmatically. NO HARD TABS.
++
++
++Name:   <The base DTB>
++Info:   Configures the base Raspberry Pi hardware
++Load:   <loaded automatically>
++Params:
++        ant1                    Select antenna 1 (default). CM4 only.
++
++        ant2                    Select antenna 2. CM4 only.
++
++        noant                   Disable both antennas. CM4 only.
++
++        audio                   Set to "on" to enable the onboard ALSA audio
++                                interface (default "off")
++
++        axiperf                 Set to "on" to enable the AXI bus performance
++                                monitors.
++                                See /sys/kernel/debug/raspberrypi_axi_monitor
++                                for the results.
++
++        eee                     Enable Energy Efficient Ethernet support for
++                                compatible devices (default "on"). See also
++                                "tx_lpi_timer". Pi3B+ only.
++
++        eth_downshift_after     Set the number of auto-negotiation failures
++                                after which the 1000Mbps modes are disabled.
++                                Legal values are 2, 3, 4, 5 and 0, where
++                                0 means never downshift (default 2). Pi3B+ only.
++
++        eth_led0                Set mode of LED0 - amber on Pi3B+ (default "1"),
++                                green on Pi4 (default "0").
++                                The legal values are:
++
++                                Pi3B+
++
++                                0=link/activity          1=link1000/activity
++                                2=link100/activity       3=link10/activity
++                                4=link100/1000/activity  5=link10/1000/activity
++                                6=link10/100/activity    14=off    15=on
++
++                                Pi4
++
++                                0=Speed/Activity         1=Speed
++                                2=Flash activity         3=FDX
++                                4=Off                    5=On
++                                6=Alt                    7=Speed/Flash
++                                8=Link                   9=Activity
++
++        eth_led1                Set mode of LED1 - green on Pi3B+ (default "6"),
++                                amber on Pi4 (default "8"). See eth_led0 for
++                                legal values.
++
++        eth_max_speed           Set the maximum speed a link is allowed
++                                to negotiate. Legal values are 10, 100 and
++                                1000 (default 1000). Pi3B+ only.
++
++        i2c_arm                 Set to "on" to enable the ARM's i2c interface
++                                (default "off")
++
++        i2c_vc                  Set to "on" to enable the i2c interface
++                                usually reserved for the VideoCore processor
++                                (default "off")
++
++        i2c                     An alias for i2c_arm
++
++        i2c_arm_baudrate        Set the baudrate of the ARM's i2c interface
++                                (default "100000")
++
++        i2c_vc_baudrate         Set the baudrate of the VideoCore i2c interface
++                                (default "100000")
++
++        i2c_baudrate            An alias for i2c_arm_baudrate
++
++        i2s                     Set to "on" to enable the i2s interface
++                                (default "off")
++
++        krnbt                   Set to "on" to enable autoprobing of Bluetooth
++                                driver without need of hciattach/btattach
++                                (default "off")
++
++        krnbt_baudrate          Set the baudrate of the PL011 UART when used
++                                with krnbt=on
++
++        spi                     Set to "on" to enable the spi interfaces
++                                (default "off")
++
++        spi_dma4                Use to enable 40-bit DMA on spi interfaces
++                                (the assigned value doesn't matter)
++                                (2711 only)
++
++        random                  Set to "on" to enable the hardware random
++                                number generator (default "on")
++
++        sd_overclock            Clock (in MHz) to use when the MMC framework
++                                requests 50MHz
++
++        sd_poll_once            Looks for a card once after booting. Useful
++                                for network booting scenarios to avoid the
++                                overhead of continuous polling. N.B. Using
++                                this option restricts the system to using a
++                                single card per boot (or none at all).
++                                (default off)
++
++        sd_force_pio            Disable DMA support for SD driver (default off)
++
++        sd_pio_limit            Number of blocks above which to use DMA for
++                                SD card (default 1)
++
++        sd_debug                Enable debug output from SD driver (default off)
++
++        sdio_overclock          Clock (in MHz) to use when the MMC framework
++                                requests 50MHz for the SDIO/WiFi interface.
++
++        tx_lpi_timer            Set the delay in microseconds between going idle
++                                and entering the low power state (default 600).
++                                Requires EEE to be enabled - see "eee".
++
++        uart0                   Set to "off" to disable uart0 (default "on")
++
++        uart1                   Set to "on" or "off" to enable or disable uart1
++                                (default varies)
++
++        watchdog                Set to "on" to enable the hardware watchdog
++                                (default "off")
++
++        act_led_trigger         Choose which activity the LED tracks.
++                                Use "heartbeat" for a nice load indicator.
++                                (default "mmc")
++
++        act_led_activelow       Set to "on" to invert the sense of the LED
++                                (default "off")
++                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
++                                overlay.
++
++        act_led_gpio            Set which GPIO to use for the activity LED
++                                (in case you want to connect it to an external
++                                device)
++                                (default "16" on a non-Plus board, "47" on a
++                                Plus or Pi 2)
++                                N.B. For Pi 3B, 3B+, 3A+ and 4B, use the act-led
++                                overlay.
++
++        pwr_led_trigger
++        pwr_led_activelow
++        pwr_led_gpio
++                                As for act_led_*, but using the PWR LED.
++                                Not available on Model A/B boards.
++
++        N.B. It is recommended to only enable those interfaces that are needed.
++        Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
++        interfering with Pi Camera, I2S and SPI hogging GPIO pins, etc.)
++        Note also that i2c, i2c_arm and i2c_vc are aliases for the physical
++        interfaces i2c0 and i2c1. Use of the numeric variants is still possible
++        but deprecated because the ARM/VC assignments differ between board
++        revisions. The same board-specific mapping applies to i2c_baudrate,
++        and the other i2c baudrate parameters.
++
++
++Name:   act-led
++Info:   Pi 3B, 3B+, 3A+ and 4B use a GPIO expander to drive the LEDs which can
++        only be accessed from the VPU. There is a special driver for this with a
++        separate DT node, which has the unfortunate consequence of breaking the
++        act_led_gpio and act_led_activelow dtparams.
++        This overlay changes the GPIO controller back to the standard one and
++        restores the dtparams.
++Load:   dtoverlay=act-led,<param>=<val>
++Params: activelow               Set to "on" to invert the sense of the LED
++                                (default "off")
++
++        gpio                    Set which GPIO to use for the activity LED
++                                (in case you want to connect it to an external
++                                device)
++                                REQUIRED
++
++
++Name:   adafruit18
++Info:   Overlay for the SPI-connected Adafruit 1.8" display (based on the
++        ST7735R chip). It includes support for the "green tab" version.
++Load:   dtoverlay=adafruit18,<param>=<val>
++Params: green                   Use the adafruit18_green variant.
++        rotate                  Display rotation {0,90,180,270}
++        speed                   SPI bus speed in Hz (default 4000000)
++        fps                     Display frame rate in Hz
++        bgr                     Enable BGR mode (default off)
++        debug                   Debug output level {0-7}
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++        led_pin                 GPIO used to control backlight (default 18)
++
++
++Name:   adau1977-adc
++Info:   Overlay for activation of ADAU1977 ADC codec over I2C for control
++        and I2S for data.
++Load:   dtoverlay=adau1977-adc
++Params: <None>
++
++
++Name:   adau7002-simple
++Info:   Overlay for the activation of ADAU7002 stereo PDM to I2S converter.
++Load:   dtoverlay=adau7002-simple,<param>=<val>
++Params: card-name               Override the default, "adau7002", card name.
++
++
++Name:   ads1015
++Info:   Overlay for activation of Texas Instruments ADS1015 ADC over I2C
++Load:   dtoverlay=ads1015,<param>=<val>
++Params: addr                    I2C bus address of device. Set based on how the
++                                addr pin is wired. (default=0x48 assumes addr
++                                is pulled to GND)
++        cha_enable              Enable virtual channel a. (default=true)
++        cha_cfg                 Set the configuration for virtual channel a.
++                                (default=4 configures this channel for the
++                                voltage at A0 with respect to GND)
++        cha_datarate            Set the datarate (samples/sec) for this channel.
++                                (default=4 sets 1600 sps)
++        cha_gain                Set the gain of the Programmable Gain
++                                Amplifier for this channel. (default=2 sets the
++                                full scale of the channel to 2.048 Volts)
++
++        Channel (ch) parameters can be set for each enabled channel.
++        A maximum of 4 channels can be enabled (letters a thru d).
++        For more information refer to the device datasheet at:
++        http://www.ti.com/lit/ds/symlink/ads1015.pdf
++
++
++Name:   ads1115
++Info:   Texas Instruments ADS1115 ADC
++Load:   dtoverlay=ads1115,<param>[=<val>]
++Params: addr                    I2C bus address of device. Set based on how the
++                                addr pin is wired. (default=0x48 assumes addr
++                                is pulled to GND)
++        cha_enable              Enable virtual channel a.
++        cha_cfg                 Set the configuration for virtual channel a.
++                                (default=4 configures this channel for the
++                                voltage at A0 with respect to GND)
++        cha_datarate            Set the datarate (samples/sec) for this channel.
++                                (default=7 sets 860 sps)
++        cha_gain                Set the gain of the Programmable Gain
++                                Amplifier for this channel. (Default 1 sets the
++                                full scale of the channel to 4.096 Volts)
++
++        Channel parameters can be set for each enabled channel.
++        A maximum of 4 channels can be enabled (letters a thru d).
++        For more information refer to the device datasheet at:
++        http://www.ti.com/lit/ds/symlink/ads1115.pdf
++
++
++Name:   ads7846
++Info:   ADS7846 Touch controller
++Load:   dtoverlay=ads7846,<param>=<val>
++Params: cs                      SPI bus Chip Select (default 1)
++        speed                   SPI bus speed (default 2MHz, max 3.25MHz)
++        penirq                  GPIO used for PENIRQ. REQUIRED
++        penirq_pull             Set GPIO pull (default 0=none, 2=pullup)
++        swapxy                  Swap x and y axis
++        xmin                    Minimum value on the X axis (default 0)
++        ymin                    Minimum value on the Y axis (default 0)
++        xmax                    Maximum value on the X axis (default 4095)
++        ymax                    Maximum value on the Y axis (default 4095)
++        pmin                    Minimum reported pressure value (default 0)
++        pmax                    Maximum reported pressure value (default 65535)
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++                                (default 400)
++
++        penirq is required and usually xohms (60-100) has to be set as well.
++        Apart from that, pmax (255) and swapxy are also common.
++        The rest of the calibration can be done with xinput-calibrator.
++        See: github.com/notro/fbtft/wiki/FBTFT-on-Raspian
++        Device Tree binding document:
++        www.kernel.org/doc/Documentation/devicetree/bindings/input/ads7846.txt
++
++
++Name:   adv7282m
++Info:   Analog Devices ADV7282M analogue video to CSI2 bridge.
++        Uses Unicam1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=adv7282m,<param>=<val>
++Params: addr                    Overrides the I2C address (default 0x21)
++
++
++Name:   adv728x-m
++Info:   Analog Devices ADV728[0|1|2]-M analogue video to CSI2 bridges.
++        This is a wrapper for adv7282m, and defaults to ADV7282M.
++Load:   dtoverlay=adv728x-m,<param>=<val>
++Params: addr                    Overrides the I2C address (default 0x21)
++        adv7280m                Select ADV7280-M.
++        adv7281m                Select ADV7281-M.
++        adv7281ma               Select ADV7281-MA.
++
++
++Name:   akkordion-iqdacplus
++Info:   Configures the Digital Dreamtime Akkordion Music Player (based on the
++        OEM IQAudIO DAC+ or DAC Zero module).
++Load:   dtoverlay=akkordion-iqdacplus,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                dtoverlay=akkordion-iqdacplus,24db_digital_gain
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   allo-boss-dac-pcm512x-audio
++Info:   Configures the Allo Boss DAC audio cards.
++Load:   dtoverlay=allo-boss-dac-pcm512x-audio,<param>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=allo-boss-dac-pcm512x-audio,
++                                24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        slave                   Force Boss DAC into slave mode, using Pi a
++                                master for bit clock and frame clock. Enable
++                                with "dtoverlay=allo-boss-dac-pcm512x-audio,
++                                slave"
++
++
++Name:   allo-digione
++Info:   Configures the Allo Digione audio card
++Load:   dtoverlay=allo-digione
++Params: <None>
++
++
++Name:   allo-katana-dac-audio
++Info:   Configures the Allo Katana DAC audio card
++Load:   dtoverlay=allo-katana-dac-audio
++Params: <None>
++
++
++Name:   allo-piano-dac-pcm512x-audio
++Info:   Configures the Allo Piano DAC (2.0/2.1) audio cards.
++        (NB. This initial support is for 2.0 channel audio ONLY! ie. stereo.
++        The subwoofer outputs on the Piano 2.1 are not currently supported!)
++Load:   dtoverlay=allo-piano-dac-pcm512x-audio,<param>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control.
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   allo-piano-dac-plus-pcm512x-audio
++Info:   Configures the Allo Piano DAC (2.1) audio cards.
++Load:   dtoverlay=allo-piano-dac-plus-pcm512x-audio,<param>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control.
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        glb_mclk                This option is only with Kali board. If enabled,
++                                MCLK for Kali is used and PLL is disabled for
++                                better voice quality. (default Off)
++
++
++Name:   anyspi
++Info:   Universal device tree overlay for SPI devices
++
++        Just specify the SPI address and device name ("compatible" property).
++        This overlay lacks any device-specific parameter support!
++
++        For devices on spi1 or spi2, the interfaces should be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++
++        Examples:
++        1. SPI NOR flash on spi0.1, maximum SPI clock frequency 45MHz:
++            dtoverlay=anyspi:spi0-1,dev="jedec,spi-nor",speed=45000000
++        2. MCP3204 ADC on spi1.2, maximum SPI clock frequency 500kHz:
++            dtoverlay=anyspi:spi1-2,dev="microchip,mcp3204"
++Load:   dtoverlay=anyspi,<param>=<val>
++Params: spi<n>-<m>              Configure device at spi<n>, cs<m>
++                                (boolean, required)
++        dev                     Set device name to search compatible module
++                                (string, required)
++        speed                   Set SPI clock frequency in Hz
++                                (integer, optional, default 500000)
++
++
++Name:   apds9960
++Info:   Configures the AVAGO APDS9960 digital proximity, ambient light, RGB and
++        gesture sensor
++Load:   dtoverlay=apds9960,<param>=<val>
++Params: gpiopin                 GPIO used for INT (default 4)
++        noints                  Disable the interrupt GPIO line.
++
++
++Name:   applepi-dac
++Info:   Configures the Orchard Audio ApplePi-DAC audio card
++Load:   dtoverlay=applepi-dac
++Params: <None>
++
++
++Name:   at86rf233
++Info:   Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,
++        connected to spi0.0
++Load:   dtoverlay=at86rf233,<param>=<val>
++Params: interrupt               GPIO used for INT (default 23)
++        reset                   GPIO used for Reset (default 24)
++        sleep                   GPIO used for Sleep (default 25)
++        speed                   SPI bus speed in Hz (default 3000000)
++        trim                    Fine tuning of the internal capacitance
++                                arrays (0=+0pF, 15=+4.5pF, default 15)
++
++
++Name:   audioinjector-addons
++Info:   Configures the audioinjector.net audio add on soundcards
++Load:   dtoverlay=audioinjector-addons,<param>=<val>
++Params: non-stop-clocks         Keeps the clocks running even when the stream
++                                is paused or stopped (default off)
++
++
++Name:   audioinjector-isolated-soundcard
++Info:   Configures the audioinjector.net isolated soundcard
++Load:   dtoverlay=audioinjector-isolated-soundcard
++Params: <None>
++
++
++Name:   audioinjector-ultra
++Info:   Configures the audioinjector.net ultra soundcard
++Load:   dtoverlay=audioinjector-ultra
++Params: <None>
++
++
++Name:   audioinjector-wm8731-audio
++Info:   Configures the audioinjector.net audio add on soundcard
++Load:   dtoverlay=audioinjector-wm8731-audio
++Params: <None>
++
++
++Name:   audiosense-pi
++Info:   Configures the audiosense-pi add on soundcard
++        For more information refer to
++        https://gitlab.com/kakar0t/audiosense-pi
++Load:   dtoverlay=audiosense-pi
++Params: <None>
++
++
++Name:   audremap
++Info:   Switches PWM sound output to GPIOs on the 40-pin header
++Load:   dtoverlay=audremap,<param>=<val>
++Params: swap_lr                 Reverse the channel allocation, which will also
++                                swap the audio jack outputs (default off)
++        enable_jack             Don't switch off the audio jack output
++                                (default off)
++        pins_12_13              Select GPIOs 12 & 13 (default)
++        pins_18_19              Select GPIOs 18 & 19
++
++
++Name:   balena-fin
++Info:   Overlay that enables WiFi, Bluetooth and the GPIO expander on the
++        balenaFin carrier board for the Raspberry Pi Compute Module 3/3+ Lite.
++Load:   dtoverlay=balena-fin
++Params: <None>
++
++
++Name:   bmp085_i2c-sensor
++Info:   This overlay is now deprecated - see i2c-sensor
++Load:   <Deprecated>
++
++
++Name:   cma
++Info:   Set custom CMA sizes, only use if you know what you are doing, might
++        clash with other overlays like vc4-fkms-v3d and vc4-kms-v3d.
++Load:   dtoverlay=cma,<param>=<val>
++Params: cma-512                 CMA is 512MB (needs 1GB)
++        cma-448                 CMA is 448MB (needs 1GB)
++        cma-384                 CMA is 384MB (needs 1GB)
++        cma-320                 CMA is 320MB (needs 1GB)
++        cma-256                 CMA is 256MB (needs 1GB)
++        cma-192                 CMA is 192MB (needs 1GB)
++        cma-128                 CMA is 128MB
++        cma-96                  CMA is 96MB
++        cma-64                  CMA is 64MB
++        cma-size                CMA size in bytes, 4MB aligned
++        cma-default             Use upstream's default value
++
++
++Name:   dht11
++Info:   Overlay for the DHT11/DHT21/DHT22 humidity/temperature sensors
++        Also sometimes found with the part number(s) AM230x.
++Load:   dtoverlay=dht11,<param>=<val>
++Params: gpiopin                 GPIO connected to the sensor's DATA output.
++                                (default 4)
++
++
++Name:   dionaudio-loco
++Info:   Configures the Dion Audio LOCO DAC-AMP
++Load:   dtoverlay=dionaudio-loco
++Params: <None>
++
++
++Name:   dionaudio-loco-v2
++Info:   Configures the Dion Audio LOCO-V2 DAC-AMP
++Load:   dtoverlay=dionaudio-loco-v2,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   disable-bt
++Info:   Disable onboard Bluetooth on Pi 3B, 3B+, 3A+, 4B and Zero W, restoring
++        UART0/ttyAMA0 over GPIOs 14 & 15.
++        N.B. To disable the systemd service that initialises the modem so it
++        doesn't use the UART, use 'sudo systemctl disable hciuart'.
++Load:   dtoverlay=disable-bt
++Params: <None>
++
++
++Name:   disable-wifi
++Info:   Disable onboard WiFi on Pi 3B, 3B+, 3A+, 4B and Zero W.
++Load:   dtoverlay=disable-wifi
++Params: <None>
++
++
++Name:   dpi18
++Info:   Overlay for a generic 18-bit DPI display
++        This uses GPIOs 0-21 (so no I2C, uart etc.), and activates the output
++        2-3 seconds after the kernel has started.
++Load:   dtoverlay=dpi18
++Params: <None>
++
++
++Name:   dpi24
++Info:   Overlay for a generic 24-bit DPI display
++        This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output
++        2-3 seconds after the kernel has started.
++Load:   dtoverlay=dpi24
++Params: <None>
++
++
++Name:   draws
++Info:   Configures the NW Digital Radio DRAWS Hat
++
++        The board includes an ADC to measure various board values and also
++        provides two analog user inputs on the expansion header.  The ADC
++        can be configured for various sample rates and gain values to adjust
++        the input range.  Tables describing the two parameters follow.
++
++        ADC Gain Values:
++            0 = +/- 6.144V
++            1 = +/- 4.096V
++            2 = +/- 2.048V
++            3 = +/- 1.024V
++            4 = +/- 0.512V
++            5 = +/- 0.256V
++            6 = +/- 0.256V
++            7 = +/- 0.256V
++
++        ADC Datarate Values:
++            0 = 128sps
++            1 = 250sps
++            2 = 490sps
++            3 = 920sps
++            4 = 1600sps (default)
++            5 = 2400sps
++            6 = 3300sps
++            7 = 3300sps
++Load:   dtoverlay=draws,<param>=<val>
++Params: draws_adc_ch4_gain      Sets the full scale resolution of the ADCs
++                                input voltage sensor (default 1)
++
++        draws_adc_ch4_datarate  Sets the datarate of the ADCs input voltage
++                                sensor
++
++        draws_adc_ch5_gain      Sets the full scale resolution of the ADCs
++                                5V rail voltage sensor (default 1)
++
++        draws_adc_ch5_datarate  Sets the datarate of the ADCs 4V rail voltage
++                                sensor
++
++        draws_adc_ch6_gain      Sets the full scale resolution of the ADCs
++                                AIN2 input (default 2)
++
++        draws_adc_ch6_datarate  Sets the datarate of the ADCs AIN2 input
++
++        draws_adc_ch7_gain      Sets the full scale resolution of the ADCs
++                                AIN3 input (default 2)
++
++        draws_adc_ch7_datarate  Sets the datarate of the ADCs AIN3 input
++
++        alsaname                Name of the ALSA audio device (default "draws")
++
++
++Name:   dwc-otg
++Info:   Selects the dwc_otg USB controller driver which has fiq support. This
++        is the default on all except the Pi Zero which defaults to dwc2.
++Load:   dtoverlay=dwc-otg
++Params: <None>
++
++
++Name:   dwc2
++Info:   Selects the dwc2 USB controller driver
++Load:   dtoverlay=dwc2,<param>=<val>
++Params: dr_mode                 Dual role mode: "host", "peripheral" or "otg"
++
++        g-rx-fifo-size          Size of rx fifo size in gadget mode
++
++        g-np-tx-fifo-size       Size of non-periodic tx fifo size in gadget
++                                mode
++
++
++[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
++
++
++Name:   enc28j60
++Info:   Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0
++Load:   dtoverlay=enc28j60,<param>=<val>
++Params: int_pin                 GPIO used for INT (default 25)
++
++        speed                   SPI bus speed (default 12000000)
++
++
++Name:   enc28j60-spi2
++Info:   Overlay for the Microchip ENC28J60 Ethernet Controller on SPI2
++Load:   dtoverlay=enc28j60-spi2,<param>=<val>
++Params: int_pin                 GPIO used for INT (default 39)
++
++        speed                   SPI bus speed (default 12000000)
++
++
++Name:   exc3000
++Info:   Enables I2C connected EETI EXC3000 multiple touch controller using
++        GPIO 4 (pin 7 on GPIO header) for interrupt.
++Load:   dtoverlay=exc3000,<param>=<val>
++Params: interrupt               GPIO used for interrupt (default 4)
++        sizex                   Touchscreen size x (default 4096)
++        sizey                   Touchscreen size y (default 4096)
++        invx                    Touchscreen inverted x axis
++        invy                    Touchscreen inverted y axis
++        swapxy                  Touchscreen swapped x y axis
++
++
++Name:   fe-pi-audio
++Info:   Configures the Fe-Pi Audio Sound Card
++Load:   dtoverlay=fe-pi-audio
++Params: <None>
++
++
++Name:   fsm-demo
++Info:   A demonstration of the gpio-fsm driver. The GPIOs are chosen to work
++        nicely with a "traffic-light" display of red, amber and green LEDs on
++        GPIOs 7, 8 and 25 respectively.
++Load:   dtoverlay=fsm-demo,<param>=<val>
++Params: fsm_debug               Enable debug logging (default off)
++
++
++Name:   ghost-amp
++Info:   An overlay for the Ghost amplifier.
++Load:   dtoverlay=ghost-amp,<param>=<val>
++Params: fsm_debug               Enable debug logging of the GPIO FSM (default
++                                off)
++
++
++Name:   goodix
++Info:   Enables I2C connected Goodix gt9271 multiple touch controller using
++        GPIOs 4 and 17 (pins 7 and 11 on GPIO header) for interrupt and reset.
++Load:   dtoverlay=goodix,<param>=<val>
++Params: interrupt               GPIO used for interrupt (default 4)
++        reset                   GPIO used for reset (default 17)
++
++
++Name:   googlevoicehat-soundcard
++Info:   Configures the Google voiceHAT soundcard
++Load:   dtoverlay=googlevoicehat-soundcard
++Params: <None>
++
++
++Name:   gpio-fan
++Info:   Configure a GPIO pin to control a cooling fan.
++Load:   dtoverlay=gpio-fan,<param>=<val>
++Params: gpiopin                 GPIO used to control the fan (default 12)
++        temp                    Temperature at which the fan switches on, in
++                                millicelcius (default 55000)
++
++
++Name:   gpio-ir
++Info:   Use GPIO pin as rc-core style infrared receiver input. The rc-core-
++        based gpio_ir_recv driver maps received keys directly to a
++        /dev/input/event* device, all decoding is done by the kernel - LIRC is
++        not required! The key mapping and other decoding parameters can be
++        configured by "ir-keytable" tool.
++Load:   dtoverlay=gpio-ir,<param>=<val>
++Params: gpio_pin                Input pin number. Default is 18.
++
++        gpio_pull               Desired pull-up/down state (off, down, up)
++                                Default is "up".
++
++        invert                  "1" = invert the input (active-low signalling).
++                                "0" = non-inverted input (active-high
++                                signalling). Default is "1".
++
++        rc-map-name             Default rc keymap (can also be changed by
++                                ir-keytable), defaults to "rc-rc6-mce"
++
++
++Name:   gpio-ir-tx
++Info:   Use GPIO pin as bit-banged infrared transmitter output.
++        This is an alternative to "pwm-ir-tx". gpio-ir-tx doesn't require
++        a PWM so it can be used together with onboard analog audio.
++Load:   dtoverlay=gpio-ir-tx,<param>=<val>
++Params: gpio_pin                Output GPIO (default 18)
++
++        invert                  "1" = invert the output (make it active-low).
++                                Default is "0" (active-high).
++
++
++Name:   gpio-key
++Info:   This is a generic overlay for activating GPIO keypresses using
++        the gpio-keys library and this dtoverlay. Multiple keys can be
++        set up using multiple calls to the overlay for configuring
++        additional buttons or joysticks. You can see available keycodes
++        at https://github.com/torvalds/linux/blob/v4.12/include/uapi/
++        linux/input-event-codes.h#L64
++Load:   dtoverlay=gpio-key,<param>=<val>
++Params: gpio                    GPIO pin to trigger on (default 3)
++        active_low              When this is 1 (active low), a falling
++                                edge generates a key down event and a
++                                rising edge generates a key up event.
++                                When this is 0 (active high), this is
++                                reversed. The default is 1 (active low)
++        gpio_pull               Desired pull-up/down state (off, down, up)
++                                Default is "up". Note that the default pin
++                                (GPIO3) has an external pullup
++        label                   Set a label for the key
++        keycode                 Set the key code for the button
++
++
++Name:   gpio-no-bank0-irq
++Info:   Use this overlay to disable GPIO interrupts for GPIOs in bank 0 (0-27),
++        which can be useful for UIO drivers.
++        N.B. Using this overlay will trigger a kernel WARN during booting, but
++        this can safely be ignored - the system should work as expected.
++Load:   dtoverlay=gpio-no-bank0-irq
++Params: <None>
++
++
++Name:   gpio-no-irq
++Info:   Use this overlay to disable all GPIO interrupts, which can be useful
++        for user-space GPIO edge detection systems.
++Load:   dtoverlay=gpio-no-irq
++Params: <None>
++
++
++Name:   gpio-poweroff
++Info:   Drives a GPIO high or low on poweroff (including halt). Enabling this
++        overlay will prevent the ability to boot by driving GPIO3 low.
++Load:   dtoverlay=gpio-poweroff,<param>=<val>
++Params: gpiopin                 GPIO for signalling (default 26)
++
++        active_low              Set if the power control device requires a
++                                high->low transition to trigger a power-down.
++                                Note that this will require the support of a
++                                custom dt-blob.bin to prevent a power-down
++                                during the boot process, and that a reboot
++                                will also cause the pin to go low.
++        input                   Set if the gpio pin should be configured as
++                                an input.
++        export                  Set to export the configured pin to sysfs
++        timeout_ms              Specify (in ms) how long the kernel waits for
++                                power-down before issuing a WARN (default 3000).
++
++
++Name:   gpio-shutdown
++Info:   Initiates a shutdown when GPIO pin changes. The given GPIO pin
++        is configured as an input key that generates KEY_POWER events.
++
++        This event is handled by systemd-logind by initiating a
++        shutdown. Systemd versions older than 225 need an udev rule
++        enable listening to the input device:
++
++                ACTION!="REMOVE", SUBSYSTEM=="input", KERNEL=="event*", \
++                        SUBSYSTEMS=="platform", DRIVERS=="gpio-keys", \
++                        ATTRS{keys}=="116", TAG+="power-switch"
++
++        Alternatively this event can be handled also on systems without
++        systemd, just by traditional SysV init daemon. KEY_POWER event
++        (keycode 116) needs to be mapped to KeyboardSignal on console
++        and then kb::kbrequest inittab action which is triggered by
++        KeyboardSignal from console can be configured to issue system
++        shutdown. Steps for this configuration are:
++
++            Add following lines to the /etc/console-setup/remap.inc file:
++
++                # Key Power as special keypress
++                keycode 116 = KeyboardSignal
++
++            Then add following lines to /etc/inittab file:
++
++                # Action on special keypress (Key Power)
++                kb::kbrequest:/sbin/shutdown -t1 -a -h -P now
++
++            And finally reload configuration by calling following commands:
++
++                # dpkg-reconfigure console-setup
++                # service console-setup reload
++                # init q
++
++        This overlay only handles shutdown. After shutdown, the system
++        can be powered up again by driving GPIO3 low. The default
++        configuration uses GPIO3 with a pullup, so if you connect a
++        button between GPIO3 and GND (pin 5 and 6 on the 40-pin header),
++        you get a shutdown and power-up button. Please note that
++        Raspberry Pi 1 Model B rev 1 uses GPIO1 instead of GPIO3.
++Load:   dtoverlay=gpio-shutdown,<param>=<val>
++Params: gpio_pin                GPIO pin to trigger on (default 3)
++                                For Raspberry Pi 1 Model B rev 1 set this
++                                explicitly to value 1, e.g.:
++
++                                    dtoverlay=gpio-shutdown,gpio_pin=1
++
++        active_low              When this is 1 (active low), a falling
++                                edge generates a key down event and a
++                                rising edge generates a key up event.
++                                When this is 0 (active high), this is
++                                reversed. The default is 1 (active low).
++
++        gpio_pull               Desired pull-up/down state (off, down, up)
++                                Default is "up".
++
++                                Note that the default pin (GPIO3) has an
++                                external pullup. Same applies for GPIO1
++                                on Raspberry Pi 1 Model B rev 1.
++
++        debounce                Specify the debounce interval in milliseconds
++                                (default 100)
++
++
++Name:   hd44780-lcd
++Info:   Configures an HD44780 compatible LCD display. Uses 4 gpio pins for
++        data, 2 gpio pins for enable and register select and 1 optional pin
++        for enabling/disabling the backlight display.
++Load:   dtoverlay=hd44780-lcd,<param>=<val>
++Params: pin_d4                  GPIO pin for data pin D4 (default 6)
++
++        pin_d5                  GPIO pin for data pin D5 (default 13)
++
++        pin_d6                  GPIO pin for data pin D6 (default 19)
++
++        pin_d7                  GPIO pin for data pin D7 (default 26)
++
++        pin_en                  GPIO pin for "Enable" (default 21)
++
++        pin_rs                  GPIO pin for "Register Select" (default 20)
++
++        pin_bl                  Optional pin for enabling/disabling the
++                                display backlight. (default disabled)
++
++        display_height          Height of the display in characters
++
++        display_width           Width of the display in characters
++
++
++Name:   hdmi-backlight-hwhack-gpio
++Info:   Devicetree overlay for GPIO based backlight on/off capability.
++        Use this if you have one of those HDMI displays whose backlight cannot
++        be controlled via DPMS over HDMI and plan to do a little soldering to
++        use an RPi gpio pin for on/off switching. See:
++        https://www.waveshare.com/wiki/7inch_HDMI_LCD_(C)#Backlight_Control
++Load:   dtoverlay=hdmi-backlight-hwhack-gpio,<param>=<val>
++Params: gpio_pin                GPIO pin used (default 17)
++        active_low              Set this to 1 if the display backlight is
++                                switched on when the wire goes low.
++                                Leave the default (value 0) if the backlight
++                                expects a high to switch it on.
++
++
++Name:   hifiberry-amp
++Info:   Configures the HifiBerry Amp and Amp+ audio cards
++Load:   dtoverlay=hifiberry-amp
++Params: <None>
++
++
++Name:   hifiberry-dac
++Info:   Configures the HifiBerry DAC audio card
++Load:   dtoverlay=hifiberry-dac
++Params: <None>
++
++
++Name:   hifiberry-dacplus
++Info:   Configures the HifiBerry DAC+ audio card
++Load:   dtoverlay=hifiberry-dacplus,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        slave                   Force DAC+ Pro into slave mode, using Pi as
++                                master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
++
++
++Name:   hifiberry-dacplusadc
++Info:   Configures the HifiBerry DAC+ADC audio card
++Load:   dtoverlay=hifiberry-dacplusadc,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=hifiberry-dacplus,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        slave                   Force DAC+ Pro into slave mode, using Pi as
++                                master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
++
++
++Name:   hifiberry-dacplusadcpro
++Info:   Configures the HifiBerry DAC+ADC PRO audio card
++Load:   dtoverlay=hifiberry-dacplusadcpro,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=hifiberry-dacplusadcpro,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        slave                   Force DAC+ADC Pro into slave mode, using Pi as
++                                master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
++
++
++Name:   hifiberry-dacplusdsp
++Info:   Configures the HifiBerry DAC+DSP audio card
++Load:   dtoverlay=hifiberry-dacplusdsp
++Params: <None>
++
++
++Name:   hifiberry-dacplushd
++Info:   Configures the HifiBerry DAC+ HD audio card
++Load:   dtoverlay=hifiberry-dacplushd
++Params: <None>
++
++
++Name:   hifiberry-digi
++Info:   Configures the HifiBerry Digi and Digi+ audio card
++Load:   dtoverlay=hifiberry-digi
++Params: <None>
++
++
++Name:   hifiberry-digi-pro
++Info:   Configures the HifiBerry Digi+ Pro audio card
++Load:   dtoverlay=hifiberry-digi-pro
++Params: <None>
++
++
++Name:   highperi
++Info:   Enables "High Peripheral" mode
++Load:   dtoverlay=highperi
++Params: <None>
++
++
++Name:   hy28a
++Info:   HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
++        Default values match Texy's display shield
++Load:   dtoverlay=hy28a,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++        resetgpio               GPIO used to reset controller
++
++        ledgpio                 GPIO used to control backlight
++
++
++Name:   hy28b
++Info:   HY28B - 2.8" TFT LCD Display Module by HAOYU Electronics
++        Default values match Texy's display shield
++Load:   dtoverlay=hy28b,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++        resetgpio               GPIO used to reset controller
++
++        ledgpio                 GPIO used to control backlight
++
++
++Name:   hy28b-2017
++Info:   HY28B 2017 version - 2.8" TFT LCD Display Module by HAOYU Electronics
++        Default values match Texy's display shield
++Load:   dtoverlay=hy28b-2017,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++        resetgpio               GPIO used to reset controller
++
++        ledgpio                 GPIO used to control backlight
++
++
++Name:   i-sabre-q2m
++Info:   Configures the Audiophonics I-SABRE Q2M DAC
++Load:   dtoverlay=i-sabre-q2m
++Params: <None>
++
++
++Name:   i2c-bcm2708
++Info:   Fall back to the i2c_bcm2708 driver for the i2c_arm bus.
++Load:   dtoverlay=i2c-bcm2708
++Params: <None>
++
++
++Name:   i2c-gpio
++Info:   Adds support for software i2c controller on gpio pins
++Load:   dtoverlay=i2c-gpio,<param>=<val>
++Params: i2c_gpio_sda            GPIO used for I2C data (default "23")
++
++        i2c_gpio_scl            GPIO used for I2C clock (default "24")
++
++        i2c_gpio_delay_us       Clock delay in microseconds
++                                (default "2" = ~100kHz)
++
++        bus                     Set to a unique, non-zero value if wanting
++                                multiple i2c-gpio busses. If set, will be used
++                                as the preferred bus number (/dev/i2c-<n>). If
++                                not set, the default value is 0, but the bus
++                                number will be dynamically assigned - probably
++                                3.
++
++
++Name:   i2c-mux
++Info:   Adds support for a number of I2C bus multiplexers on i2c_arm
++Load:   dtoverlay=i2c-mux,<param>=<val>
++Params: pca9542                 Select the NXP PCA9542 device
++
++        pca9545                 Select the NXP PCA9545 device
++
++        pca9548                 Select the NXP PCA9548 device
++
++        addr                    Change I2C address of the device (default 0x70)
++
++
++[ The i2c-mux-pca9548a overlay has been deleted. See i2c-mux. ]
++
++
++Name:   i2c-pwm-pca9685a
++Info:   Adds support for an NXP PCA9685A I2C PWM controller on i2c_arm
++Load:   dtoverlay=i2c-pwm-pca9685a,<param>=<val>
++Params: addr                    I2C address of PCA9685A (default 0x40)
++
++
++Name:   i2c-rtc
++Info:   Adds support for a number of I2C Real Time Clock devices
++Load:   dtoverlay=i2c-rtc,<param>=<val>
++Params: abx80x                  Select one of the ABx80x family:
++                                  AB0801, AB0803, AB0804, AB0805,
++                                  AB1801, AB1803, AB1804, AB1805
++
++        ds1307                  Select the DS1307 device
++
++        ds1339                  Select the DS1339 device
++
++        ds3231                  Select the DS3231 device
++
++        m41t62                  Select the M41T62 device
++
++        mcp7940x                Select the MCP7940x device
++
++        mcp7941x                Select the MCP7941x device
++
++        pcf2127                 Select the PCF2127 device
++
++        pcf2129                 Select the PCF2129 device
++
++        pcf8523                 Select the PCF8523 device
++
++        pcf85363                Select the PCF85363 device
++
++        pcf8563                 Select the PCF8563 device
++
++        rv1805                  Select the Micro Crystal RV1805 device
++
++        rv3028                  Select the Micro Crystal RV3028 device
++
++        sd3078                  Select the ZXW Shenzhen whwave SD3078 device
++
++        addr                    Sets the address for the RTC. Note that the
++                                device must be configured to use the specified
++                                address.
++
++        trickle-diode-type      Diode type for trickle charge - "standard" or
++                                "schottky" (ABx80x and RV1805 only)
++
++        trickle-resistor-ohms   Resistor value for trickle charge (DS1339,
++                                ABx80x, RV1805, RV3028)
++
++        wakeup-source           Specify that the RTC can be used as a wakeup
++                                source
++
++        backup-switchover-mode  Backup power supply switch mode. Must be 0 for
++                                off or 1 for Vdd < VBackup (RV3028 only)
++
++
++Name:   i2c-rtc-gpio
++Info:   Adds support for a number of I2C Real Time Clock devices
++        using the software i2c controller
++Load:   dtoverlay=i2c-rtc-gpio,<param>=<val>
++Params: abx80x                  Select one of the ABx80x family:
++                                  AB0801, AB0803, AB0804, AB0805,
++                                  AB1801, AB1803, AB1804, AB1805
++
++        ds1307                  Select the DS1307 device
++
++        ds1339                  Select the DS1339 device
++
++        ds3231                  Select the DS3231 device
++
++        m41t62                  Select the M41T62 device
++
++        mcp7940x                Select the MCP7940x device
++
++        mcp7941x                Select the MCP7941x device
++
++        pcf2127                 Select the PCF2127 device
++
++        pcf2129                 Select the PCF2129 device
++
++        pcf8523                 Select the PCF8523 device
++
++        pcf8563                 Select the PCF8563 device
++
++        rv1805                  Select the Micro Crystal RV1805 device
++
++        rv3028                  Select the Micro Crystal RV3028 device
++
++        addr                    Sets the address for the RTC. Note that the
++                                device must be configured to use the specified
++                                address.
++
++        trickle-diode-type      Diode type for trickle charge - "standard" or
++                                "schottky" (ABx80x and RV1805 only)
++
++        trickle-resistor-ohms   Resistor value for trickle charge (DS1339,
++                                ABx80x, RV1805, RV3028)
++
++        wakeup-source           Specify that the RTC can be used as a wakeup
++                                source
++
++        backup-switchover-mode  Backup power supply switch mode. Must be 0 for
++                                off or 1 for Vdd < VBackup (RV3028 only)
++
++        i2c_gpio_sda            GPIO used for I2C data (default "23")
++
++        i2c_gpio_scl            GPIO used for I2C clock (default "24")
++
++        i2c_gpio_delay_us       Clock delay in microseconds
++                                (default "2" = ~100kHz)
++
++
++Name:   i2c-sensor
++Info:   Adds support for a number of I2C barometric pressure and temperature
++        sensors on i2c_arm
++Load:   dtoverlay=i2c-sensor,<param>=<val>
++Params: addr                    Set the address for the BME280, BME680, BMP280,
++                                DS1621, HDC100X, LM75, SHT3x or TMP102
++
++        bme280                  Select the Bosch Sensortronic BME280
++                                Valid addresses 0x76-0x77, default 0x76
++
++        bme680                  Select the Bosch Sensortronic BME680
++                                Valid addresses 0x76-0x77, default 0x76
++
++        bmp085                  Select the Bosch Sensortronic BMP085
++
++        bmp180                  Select the Bosch Sensortronic BMP180
++
++        bmp280                  Select the Bosch Sensortronic BMP280
++                                Valid addresses 0x76-0x77, default 0x76
++
++        ds1621                  Select the Dallas Semiconductors DS1621 temp
++                                sensor. Valid addresses 0x48-0x4f, default 0x48
++
++        hdc100x                 Select the Texas Instruments HDC100x temp sensor
++                                Valid addresses 0x40-0x43, default 0x40
++
++        htu21                   Select the HTU21 temperature and humidity sensor
++
++        lm75                    Select the Maxim LM75 temperature sensor
++                                Valid addresses 0x48-0x4f, default 0x4f
++
++        lm75addr                Deprecated - use addr parameter instead
++
++        max17040                Select the Maxim Integrated MAX17040 battery
++                                monitor
++
++        sht3x                   Select the Sensiron SHT3x temperature and
++                                humidity sensor. Valid addresses 0x44-0x45,
++                                default 0x44
++
++        si7020                  Select the Silicon Labs Si7013/20/21 humidity/
++                                temperature sensor
++
++        sps30                   Select the Sensirion SPS30 particulate matter
++                                sensor. Fixed address 0x69.
++
++        tmp102                  Select the Texas Instruments TMP102 temp sensor
++                                Valid addresses 0x48-0x4b, default 0x48
++
++        tsl4531                 Select the AMS TSL4531 digital ambient light
++                                sensor
++
++        veml6070                Select the Vishay VEML6070 ultraviolet light
++                                sensor
++
++
++Name:   i2c0
++Info:   Change i2c0 pin usage. Not all pin combinations are usable on all
++        platforms - platforms other then Compute Modules can only use this
++        to disable transaction combining.
++        Do NOT use in conjunction with dtparam=i2c_vc=on. From the 5.4 kernel
++        onwards the base DT includes the use of i2c_mux_pinctrl to expose two
++        muxings of BSC0 - GPIOs 0&1, and whichever combination is used for the
++        camera and display connectors. This overlay disables that mux and
++        configures /dev/i2c0 to point at whichever set of pins is requested.
++        dtparam=i2c_vc=on will try and enable the mux, so combining the two
++        will cause conflicts.
++Load:   dtoverlay=i2c0,<param>=<val>
++Params: pins_0_1                Use pins 0 and 1 (default)
++        pins_28_29              Use pins 28 and 29
++        pins_44_45              Use pins 44 and 45
++        pins_46_47              Use pins 46 and 47
++        combine                 Allow transactions to be combined (default
++                                "yes")
++
++
++Name:   i2c0-bcm2708
++Info:   Deprecated, legacy version of i2c0.
++Load:   <Deprecated>
++
++
++Name:   i2c1
++Info:   Change i2c1 pin usage. Not all pin combinations are usable on all
++        platforms - platforms other then Compute Modules can only use this
++        to disable transaction combining.
++Load:   dtoverlay=i2c1,<param>=<val>
++Params: pins_2_3                Use pins 2 and 3 (default)
++        pins_44_45              Use pins 44 and 45
++        combine                 Allow transactions to be combined (default
++                                "yes")
++
++
++Name:   i2c1-bcm2708
++Info:   Deprecated, legacy version of i2c1.
++Load:   <Deprecated>
++
++
++Name:   i2c3
++Info:   Enable the i2c3 bus. BCM2711 only.
++Load:   dtoverlay=i2c3,<param>
++Params: pins_2_3                Use GPIOs 2 and 3
++        pins_4_5                Use GPIOs 4 and 5 (default)
++        baudrate                Set the baudrate for the interface (default
++                                "100000")
++
++
++Name:   i2c4
++Info:   Enable the i2c4 bus. BCM2711 only.
++Load:   dtoverlay=i2c4,<param>
++Params: pins_6_7                Use GPIOs 6 and 7
++        pins_8_9                Use GPIOs 8 and 9 (default)
++        baudrate                Set the baudrate for the interface (default
++                                "100000")
++
++
++Name:   i2c5
++Info:   Enable the i2c5 bus. BCM2711 only.
++Load:   dtoverlay=i2c5,<param>
++Params: pins_10_11              Use GPIOs 10 and 11
++        pins_12_13              Use GPIOs 12 and 13 (default)
++        baudrate                Set the baudrate for the interface (default
++                                "100000")
++
++
++Name:   i2c6
++Info:   Enable the i2c6 bus. BCM2711 only.
++Load:   dtoverlay=i2c6,<param>
++Params: pins_0_1                Use GPIOs 0 and 1
++        pins_22_23              Use GPIOs 22 and 23 (default)
++        baudrate                Set the baudrate for the interface (default
++                                "100000")
++
++
++Name:   i2s-gpio28-31
++Info:   move I2S function block to GPIO 28 to 31
++Load:   dtoverlay=i2s-gpio28-31
++Params: <None>
++
++
++Name:   ilitek251x
++Info:   Enables I2C connected Ilitek 251x multiple touch controller using
++        GPIO 4 (pin 7 on GPIO header) for interrupt.
++Load:   dtoverlay=ilitek251x,<param>=<val>
++Params: interrupt               GPIO used for interrupt (default 4)
++        sizex                   Touchscreen size x, horizontal resolution of
++                                touchscreen (in pixels)
++        sizey                   Touchscreen size y, vertical resolution of
++                                touchscreen (in pixels)
++
++
++Name:   imx219
++Info:   Sony IMX219 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=imx219,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 180)
++
++
++Name:   imx290
++Info:   Sony IMX290 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants. NB This currently uses 4 CSI2 data lanes and therefore will
++        only work on a CM.
++Load:   dtoverlay=imx290,<param>
++Params: 4lane                   Enable 4 CSI2 lanes. This requires a Compute
++                                Module (1, 3, or 4).
++        clock-frequency         Sets the clock frequency to match that used on
++                                the board.
++                                Modules from Vision Components use 37.125MHz
++                                (the default), whilst those from Innomaker use
++                                74.25MHz.
++        mono                    Denote that the module is a mono sensor.
++
++
++Name:   imx477
++Info:   Sony IMX477 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=imx477,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 180)
++
++
++Name:   iqaudio-codec
++Info:   Configures the IQaudio Codec audio card
++Load:   dtoverlay=iqaudio-codec
++Params: <None>
++
++
++Name:   iqaudio-dac
++Info:   Configures the IQaudio DAC audio card
++Load:   dtoverlay=iqaudio-dac,<param>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=iqaudio-dac,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   iqaudio-dacplus
++Info:   Configures the IQaudio DAC+ audio card
++Load:   dtoverlay=iqaudio-dacplus,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=iqaudio-dacplus,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24db_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        auto_mute_amp           If specified, unmute/mute the IQaudIO amp when
++                                starting/stopping audio playback.
++        unmute_amp              If specified, unmute the IQaudIO amp once when
++                                the DAC driver module loads.
++
++
++Name:   iqaudio-digi-wm8804-audio
++Info:   Configures the IQAudIO Digi WM8804 audio card
++Load:   dtoverlay=iqaudio-digi-wm8804-audio,<param>=<val>
++Params: card_name               Override the default, "IQAudIODigi", card name.
++        dai_name                Override the default, "IQAudIO Digi", dai name.
++        dai_stream_name         Override the default, "IQAudIO Digi HiFi",
++                                dai stream name.
++
++
++Name:   irs1125
++Info:   Infineon irs1125 TOF camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=irs1125
++Params: <None>
++
++
++Name:   jedec-spi-nor
++Info:   Adds support for JEDEC-compliant SPI NOR flash devices.  (Note: The
++        "jedec,spi-nor" kernel driver was formerly known as "m25p80".)
++Load:   dtoverlay=jedec-spi-nor,<param>=<val>
++Params: flash-spi<n>-<m>        Enables flash device on SPI<n>, CS#<m>.
++        flash-fastr-spi<n>-<m>  Enables flash device with fast read capability
++                                on SPI<n>, CS#<m>.
++
++
++Name:   justboom-both
++Info:   Simultaneous usage of an justboom-dac and justboom-digi based
++        card
++Load:   dtoverlay=justboom-both,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=justboom-dac,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   justboom-dac
++Info:   Configures the JustBoom DAC HAT, Amp HAT, DAC Zero and Amp Zero audio
++        cards
++Load:   dtoverlay=justboom-dac,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=justboom-dac,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++
++
++Name:   justboom-digi
++Info:   Configures the JustBoom Digi HAT and Digi Zero audio cards
++Load:   dtoverlay=justboom-digi
++Params: <None>
++
++
++Name:   lirc-rpi
++Info:   This overlay has been deprecated and removed - see gpio-ir
++Load:   <Deprecated>
++
++
++Name:   ltc294x
++Info:   Adds support for the ltc294x family of battery gauges
++Load:   dtoverlay=ltc294x,<param>=<val>
++Params: ltc2941                 Select the ltc2941 device
++
++        ltc2942                 Select the ltc2942 device
++
++        ltc2943                 Select the ltc2943 device
++
++        ltc2944                 Select the ltc2944 device
++
++        resistor-sense          The sense resistor value in milli-ohms.
++                                Can be a 32-bit negative value when the battery
++                                has been connected to the wrong end of the
++                                resistor.
++
++        prescaler-exponent      Range and accuracy of the gauge. The value is
++                                programmed into the chip only if it differs
++                                from the current setting.
++                                For LTC2941 only:
++                                - Default value is 128
++                                - the exponent is in the range 0-7 (default 7)
++                                See the datasheet for more information.
++
++
++Name:   max98357a
++Info:   Configures the Maxim MAX98357A I2S DAC
++Load:   dtoverlay=max98357a,<param>=<val>
++Params: no-sdmode               Driver does not manage the state of the DAC's
++                                SD_MODE pin (i.e. chip is always on).
++        sdmode-pin              integer, GPIO pin connected to the SD_MODE input
++                                of the DAC (default GPIO4 if parameter omitted).
++
++
++Name:   maxtherm
++Info:   Configure a MAX6675 or MAX31855 thermocouple as an IIO device.
++
++        For devices on spi1 or spi2, the interfaces should be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++        The overlay expects to disable the relevant spidev node, so also using
++        e.g. cs0_spidev=off is unnecessary.
++
++        Note:   with the 5.7 kernel (and later) there will also be
++                overlays for MAX31855E, MAX31855J, MAX31855K,
++                MAX31885N, MAX31855R, MAX31855S and MAX31855T.
++
++        Example:
++        MAX31855 on /dev/spidev0.0
++            dtoverlay=maxtherm,spi0-0,max31855
++
++Load:   dtoverlay=maxtherm,<param>=<val>
++Params: spi<n>-<m>              Configure device at spi<n>, cs<m>
++                                (boolean, required)
++        max6675                 Enable support for the MAX6675 (default)
++        max31855                Enable support for the MAX31855
++        max31855e               Enable support for the MAX31855E
++        max31855j               Enable support for the MAX31855J
++        max31855k               Enable support for the MAX31855K
++        max31855n               Enable support for the MAX31855N
++        max31855r               Enable support for the MAX31855R
++        max31855s               Enable support for the MAX31855S
++        max31855t               Enable support for the MAX31855T
++
++
++Name:   mbed-dac
++Info:   Configures the mbed AudioCODEC (TLV320AIC23B)
++Load:   dtoverlay=mbed-dac
++Params: <None>
++
++
++Name:   mcp23017
++Info:   Configures the MCP23017 I2C GPIO expander
++Load:   dtoverlay=mcp23017,<param>=<val>
++Params: gpiopin                 Gpio pin connected to the INTA output of the
++                                MCP23017 (default: 4)
++
++        addr                    I2C address of the MCP23017 (default: 0x20)
++
++        mcp23008                Configure an MCP23008 instead.
++        noints                  Disable the interrupt GPIO line.
++
++
++Name:   mcp23s17
++Info:   Configures the MCP23S08/17 SPI GPIO expanders.
++        If devices are present on SPI1 or SPI2, those interfaces must be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++        If interrupts are enabled for a device on a given CS# on a SPI bus, that
++        device must be the only one present on that SPI bus/CS#.
++Load:   dtoverlay=mcp23s17,<param>=<val>
++Params: s08-spi<n>-<m>-present  4-bit integer, bitmap indicating MCP23S08
++                                devices present on SPI<n>, CS#<m>
++
++        s17-spi<n>-<m>-present  8-bit integer, bitmap indicating MCP23S17
++                                devices present on SPI<n>, CS#<m>
++
++        s08-spi<n>-<m>-int-gpio integer, enables interrupts on a single
++                                MCP23S08 device on SPI<n>, CS#<m>, specifies
++                                the GPIO pin to which INT output of MCP23S08
++                                is connected.
++
++        s17-spi<n>-<m>-int-gpio integer, enables mirrored interrupts on a
++                                single MCP23S17 device on SPI<n>, CS#<m>,
++                                specifies the GPIO pin to which either INTA
++                                or INTB output of MCP23S17 is connected.
++
++
++Name:   mcp2515-can0
++Info:   Configures the MCP2515 CAN controller on spi0.0
++Load:   dtoverlay=mcp2515-can0,<param>=<val>
++Params: oscillator              Clock frequency for the CAN controller (Hz)
++
++        spimaxfrequency         Maximum SPI frequence (Hz)
++
++        interrupt               GPIO for interrupt signal
++
++
++Name:   mcp2515-can1
++Info:   Configures the MCP2515 CAN controller on spi0.1
++Load:   dtoverlay=mcp2515-can1,<param>=<val>
++Params: oscillator              Clock frequency for the CAN controller (Hz)
++
++        spimaxfrequency         Maximum SPI frequence (Hz)
++
++        interrupt               GPIO for interrupt signal
++
++
++Name:   mcp3008
++Info:   Configures MCP3008 A/D converters
++        For devices on spi1 or spi2, the interfaces should be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++Load:   dtoverlay=mcp3008,<param>[=<val>]
++Params: spi<n>-<m>-present      boolean, configure device at spi<n>, cs<m>
++        spi<n>-<m>-speed        integer, set the spi bus speed for this device
++
++
++Name:   mcp3202
++Info:   Configures MCP3202 A/D converters
++        For devices on spi1 or spi2, the interfaces should be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++Load:   dtoverlay=mcp3202,<param>[=<val>]
++Params: spi<n>-<m>-present      boolean, configure device at spi<n>, cs<m>
++        spi<n>-<m>-speed        integer, set the spi bus speed for this device
++
++
++Name:   mcp342x
++Info:   Overlay for activation of Microchip MCP3421-3428 ADCs over I2C
++Load:   dtoverlay=mcp342x,<param>=<val>
++Params: addr                    I2C bus address of device, for devices with
++                                addresses that are configurable, e.g. by
++                                hardware links (default=0x68)
++        mcp3421                 The device is an MCP3421
++        mcp3422                 The device is an MCP3422
++        mcp3423                 The device is an MCP3423
++        mcp3424                 The device is an MCP3424
++        mcp3425                 The device is an MCP3425
++        mcp3426                 The device is an MCP3426
++        mcp3427                 The device is an MCP3427
++        mcp3428                 The device is an MCP3428
++
++
++Name:   media-center
++Info:   Media Center HAT - 2.83" Touch Display + extras by Pi Supply
++Load:   dtoverlay=media-center,<param>=<val>
++Params: speed                   Display SPI bus speed
++        rotate                  Display rotation {0,90,180,270}
++        fps                     Delay between frame updates
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++        swapxy                  Swap x and y axis
++        backlight               Change backlight GPIO pin {e.g. 12, 18}
++        gpio_out_pin            GPIO for output (default "17")
++        gpio_in_pin             GPIO for input (default "18")
++        gpio_in_pull            Pull up/down/off on the input pin
++                                (default "down")
++        sense                   Override the IR receive auto-detection logic:
++                                 "0" = force active-high
++                                 "1" = force active-low
++                                 "-1" = use auto-detection
++                                (default "-1")
++        softcarrier             Turn the software carrier "on" or "off"
++                                (default "on")
++        invert                  "on" = invert the output pin (default "off")
++        debug                   "on" = enable additional debug messages
++                                (default "off")
++
++
++Name:   merus-amp
++Info:   Configures the merus-amp audio card
++Load:   dtoverlay=merus-amp
++Params: <None>
++
++
++Name:   midi-uart0
++Info:   Configures UART0 (ttyAMA0) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart0
++Params: <None>
++
++
++Name:   midi-uart1
++Info:   Configures UART1 (ttyS0) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart1
++Params: <None>
++
++
++Name:   miniuart-bt
++Info:   Switch the onboard Bluetooth function on Pi 3B, 3B+, 3A+, 4B and Zero W
++        to use the mini-UART (ttyS0) and restore UART0/ttyAMA0 over GPIOs 14 &
++        15. Note that this may reduce the maximum usable baudrate.
++        N.B. It is also necessary to edit /lib/systemd/system/hciuart.service
++        and replace ttyAMA0 with ttyS0, unless using Raspbian or another
++        distribution with udev rules that create /dev/serial0 and /dev/serial1,
++        in which case use /dev/serial1 instead because it will always be
++        correct. Furthermore, you must also set core_freq and core_freq_min to
++        the same value in config.txt or the miniuart will not work.
++Load:   dtoverlay=miniuart-bt,<param>=<val>
++Params: krnbt                   Set to "on" to enable autoprobing of Bluetooth
++                                driver without need of hciattach/btattach
++
++
++Name:   mmc
++Info:   Selects the bcm2835-mmc SD/MMC driver, optionally with overclock
++Load:   dtoverlay=mmc,<param>=<val>
++Params: overclock_50            Clock (in MHz) to use when the MMC framework
++                                requests 50MHz
++
++
++Name:   mpu6050
++Info:   Overlay for i2c connected mpu6050 imu
++Load:   dtoverlay=mpu6050,<param>=<val>
++Params: interrupt               GPIO pin for interrupt (default 4)
++
++
++Name:   mz61581
++Info:   MZ61581 display by Tontec
++Load:   dtoverlay=mz61581,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        txbuflen                Transmit buffer length (default 32768)
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++
++Name:   ov5647
++Info:   Omnivision OV5647 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=ov5647,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 0)
++
++
++Name:   ov7251
++Info:   Omnivision OV7251 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=ov7251
++Params: <None>
++
++
++Name:   ov9281
++Info:   Omnivision OV9281 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=ov9281
++Params: <None>
++
++
++Name:   papirus
++Info:   PaPiRus ePaper Screen by Pi Supply (both HAT and pHAT)
++Load:   dtoverlay=papirus,<param>=<val>
++Params: panel                   Display panel (required):
++                                1.44": e1144cs021
++                                2.0":  e2200cs021
++                                2.7":  e2271cs021
++
++        speed                   Display SPI bus speed
++
++
++Name:   pca953x
++Info:   TI PCA953x family of I2C GPIO expanders. Default is for NXP PCA9534.
++Load:   dtoverlay=pca953x,<param>=<val>
++Params: addr                    I2C address of expander. Default 0x20.
++        pca6416                 Select the NXP PCA6416 (16 bit)
++        pca9505                 Select the NXP PCA9505 (40 bit)
++        pca9535                 Select the NXP PCA9535 (16 bit)
++        pca9536                 Select the NXP PCA9536 or TI PCA9536 (4 bit)
++        pca9537                 Select the NXP PCA9537 (4 bit)
++        pca9538                 Select the NXP PCA9538 (8 bit)
++        pca9539                 Select the NXP PCA9539 (16 bit)
++        pca9554                 Select the NXP PCA9554 (8 bit)
++        pca9555                 Select the NXP PCA9555 (16 bit)
++        pca9556                 Select the NXP PCA9556 (8 bit)
++        pca9557                 Select the NXP PCA9557 (8 bit)
++        pca9574                 Select the NXP PCA9574 (8 bit)
++        pca9575                 Select the NXP PCA9575 (16 bit)
++        pca9698                 Select the NXP PCA9698 (40 bit)
++        pca16416                Select the NXP PCA16416 (16 bit)
++        pca16524                Select the NXP PCA16524 (24 bit)
++        pca19555a               Select the NXP PCA19555A (16 bit)
++        max7310                 Select the Maxim MAX7310 (8 bit)
++        max7312                 Select the Maxim MAX7312 (16 bit)
++        max7313                 Select the Maxim MAX7313 (16 bit)
++        max7315                 Select the Maxim MAX7315 (8 bit)
++        pca6107                 Select the TI PCA6107 (8 bit)
++        tca6408                 Select the TI TCA6408 (8 bit)
++        tca6416                 Select the TI TCA6416 (16 bit)
++        tca6424                 Select the TI TCA6424 (24 bit)
++        tca9539                 Select the TI TCA9539 (16 bit)
++        tca9554                 Select the TI TCA9554 (8 bit)
++        cat9554                 Select the Onnn CAT9554 (8 bit)
++        pca9654                 Select the Onnn PCA9654 (8 bit)
++        xra1202                 Select the Exar XRA1202 (8 bit)
++
++
++[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
++
++
++[ The pcf8523-rtc overlay has been deleted. See i2c-rtc. ]
++
++
++[ The pcf8563-rtc overlay has been deleted. See i2c-rtc. ]
++
++
++Name:   pi3-act-led
++Info:   This overlay has been renamed act-led, keeping pi3-act-led as an alias
++        for backwards compatibility.
++Load:   <Deprecated>
++
++
++Name:   pi3-disable-bt
++Info:   This overlay has been renamed disable-bt, keeping pi3-disable-bt as an
++        alias for backwards compatibility.
++Load:   <Deprecated>
++
++
++Name:   pi3-disable-wifi
++Info:   This overlay has been renamed disable-wifi, keeping pi3-disable-wifi as
++        an alias for backwards compatibility.
++Load:   <Deprecated>
++
++
++Name:   pi3-miniuart-bt
++Info:   This overlay has been renamed miniuart-bt, keeping pi3-miniuart-bt as
++        an alias for backwards compatibility.
++Load:   <Deprecated>
++
++
++Name:   pibell
++Info:   Configures the pibell audio card.
++Load:   dtoverlay=pibell,<param>=<val>
++Params: alsaname                Set the name as it appears in ALSA (default
++                                "PiBell")
++
++
++Name:   pifacedigital
++Info:   Configures the PiFace Digital mcp23s17 GPIO port expander.
++Load:   dtoverlay=pifacedigital,<param>=<val>
++Params: spi-present-mask        8-bit integer, bitmap indicating MCP23S17 SPI0
++                                CS0 address. PiFace Digital supports addresses
++                                0-3, which can be configured with JP1 and JP2.
++
++
++Name:   piglow
++Info:   Configures the PiGlow by pimoroni.com
++Load:   dtoverlay=piglow
++Params: <None>
++
++
++Name:   piscreen
++Info:   PiScreen display by OzzMaker.com
++Load:   dtoverlay=piscreen,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++
++Name:   piscreen2r
++Info:   PiScreen 2 with resistive TP display by OzzMaker.com
++Load:   dtoverlay=piscreen2r,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++
++
++Name:   pisound
++Info:   Configures the Blokas Labs pisound card
++Load:   dtoverlay=pisound
++Params: <None>
++
++
++Name:   pitft22
++Info:   Adafruit PiTFT 2.2" screen
++Load:   dtoverlay=pitft22,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++
++Name:   pitft28-capacitive
++Info:   Adafruit PiTFT 2.8" capacitive touch screen
++Load:   dtoverlay=pitft28-capacitive,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        touch-sizex             Touchscreen size x (default 240)
++
++        touch-sizey             Touchscreen size y (default 320)
++
++        touch-invx              Touchscreen inverted x axis
++
++        touch-invy              Touchscreen inverted y axis
++
++        touch-swapxy            Touchscreen swapped x y axis
++
++
++Name:   pitft28-resistive
++Info:   Adafruit PiTFT 2.8" resistive touch screen
++Load:   dtoverlay=pitft28-resistive,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++
++Name:   pitft35-resistive
++Info:   Adafruit PiTFT 3.5" resistive touch screen
++Load:   dtoverlay=pitft35-resistive,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++
++Name:   pps-gpio
++Info:   Configures the pps-gpio (pulse-per-second time signal via GPIO).
++Load:   dtoverlay=pps-gpio,<param>=<val>
++Params: gpiopin                 Input GPIO (default "18")
++        assert_falling_edge     When present, assert is indicated by a falling
++                                edge, rather than by a rising edge (default
++                                off)
++        capture_clear           Generate clear events on the trailing edge
++                                (default off)
++
++
++Name:   pwm
++Info:   Configures a single PWM channel
++        Legal pin,function combinations for each channel:
++          PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0)            52,5(Alt1)
++          PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1)
++        N.B.:
++          1) Pin 18 is the only one available on all platforms, and
++             it is the one used by the I2S audio interface.
++             Pins 12 and 13 might be better choices on an A+, B+ or Pi2.
++          2) The onboard analogue audio output uses both PWM channels.
++          3) So be careful mixing audio and PWM.
++          4) Currently the clock must have been enabled and configured
++             by other means.
++Load:   dtoverlay=pwm,<param>=<val>
++Params: pin                     Output pin (default 18) - see table
++        func                    Pin function (default 2 = Alt5) - see above
++        clock                   PWM clock frequency (informational)
++
++
++Name:   pwm-2chan
++Info:   Configures both PWM channels
++        Legal pin,function combinations for each channel:
++          PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0)            52,5(Alt1)
++          PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1)
++        N.B.:
++          1) Pin 18 is the only one available on all platforms, and
++             it is the one used by the I2S audio interface.
++             Pins 12 and 13 might be better choices on an A+, B+ or Pi2.
++          2) The onboard analogue audio output uses both PWM channels.
++          3) So be careful mixing audio and PWM.
++          4) Currently the clock must have been enabled and configured
++             by other means.
++Load:   dtoverlay=pwm-2chan,<param>=<val>
++Params: pin                     Output pin (default 18) - see table
++        pin2                    Output pin for other channel (default 19)
++        func                    Pin function (default 2 = Alt5) - see above
++        func2                   Function for pin2 (default 2 = Alt5)
++        clock                   PWM clock frequency (informational)
++
++
++Name:   pwm-ir-tx
++Info:   Use GPIO pin as pwm-assisted infrared transmitter output.
++        This is an alternative to "gpio-ir-tx". pwm-ir-tx makes use
++        of PWM0 to reduce the CPU load during transmission compared to
++        gpio-ir-tx which uses bit-banging.
++        Legal pin,function combinations are:
++          12,4(Alt0) 18,2(Alt5) 40,4(Alt0) 52,5(Alt1)
++Load:   dtoverlay=pwm-ir-tx,<param>=<val>
++Params: gpio_pin                Output GPIO (default 18)
++
++        func                    Pin function (default 2 = Alt5)
++
++
++Name:   qca7000
++Info:   I2SE's Evaluation Board for PLC Stamp micro
++Load:   dtoverlay=qca7000,<param>=<val>
++Params: int_pin                 GPIO pin for interrupt signal (default 23)
++
++        speed                   SPI bus speed (default 12 MHz)
++
++
++Name:   rotary-encoder
++Info:   Overlay for GPIO connected rotary encoder.
++Load:   dtoverlay=rotary-encoder,<param>=<val>
++Params: pin_a                   GPIO connected to rotary encoder channel A
++                                (default 4).
++        pin_b                   GPIO connected to rotary encoder channel B
++                                (default 17).
++        relative_axis           register a relative axis rather than an
++                                absolute one. Relative axis will only
++                                generate +1/-1 events on the input device,
++                                hence no steps need to be passed.
++        linux_axis              the input subsystem axis to map to this
++                                rotary encoder. Defaults to 0 (ABS_X / REL_X)
++        rollover                Automatic rollover when the rotary value
++                                becomes greater than the specified steps or
++                                smaller than 0. For absolute axis only.
++        steps-per-period        Number of steps (stable states) per period.
++                                The values have the following meaning:
++                                1: Full-period mode (default)
++                                2: Half-period mode
++                                4: Quarter-period mode
++        steps                   Number of steps in a full turnaround of the
++                                encoder. Only relevant for absolute axis.
++                                Defaults to 24 which is a typical value for
++                                such devices.
++        wakeup                  Boolean, rotary encoder can wake up the
++                                system.
++        encoding                String, the method used to encode steps.
++                                Supported are "gray" (the default and more
++                                common) and "binary".
++
++
++Name:   rpi-backlight
++Info:   Raspberry Pi official display backlight driver
++Load:   dtoverlay=rpi-backlight
++Params: <None>
++
++
++Name:   rpi-cirrus-wm5102
++Info:   Configures the Cirrus Logic Audio Card
++Load:   dtoverlay=rpi-cirrus-wm5102
++Params: <None>
++
++
++Name:   rpi-dac
++Info:   Configures the RPi DAC audio card
++Load:   dtoverlay=rpi-dac
++Params: <None>
++
++
++Name:   rpi-display
++Info:   RPi-Display - 2.8" Touch Display by Watterott
++Load:   dtoverlay=rpi-display,<param>=<val>
++Params: speed                   Display SPI bus speed
++        rotate                  Display rotation {0,90,180,270}
++        fps                     Delay between frame updates
++        debug                   Debug output level {0-7}
++        xohms                   Touchpanel sensitivity (X-plate resistance)
++        swapxy                  Swap x and y axis
++        backlight               Change backlight GPIO pin {e.g. 12, 18}
++
++
++Name:   rpi-ft5406
++Info:   Official Raspberry Pi display touchscreen
++Load:   dtoverlay=rpi-ft5406,<param>=<val>
++Params: touchscreen-size-x      Touchscreen X resolution (default 800)
++        touchscreen-size-y      Touchscreen Y resolution (default 600);
++        touchscreen-inverted-x  Invert touchscreen X coordinates (default 0);
++        touchscreen-inverted-y  Invert touchscreen Y coordinates (default 0);
++        touchscreen-swapped-x-y Swap X and Y cordinates (default 0);
++
++
++Name:   rpi-poe
++Info:   Raspberry Pi PoE HAT fan
++Load:   dtoverlay=rpi-poe,<param>[=<val>]
++Params: poe_fan_temp0           Temperature (in millicelcius) at which the fan
++                                turns on (default 40000)
++        poe_fan_temp0_hyst      Temperature delta (in millicelcius) at which
++                                the fan turns off (default 2000)
++        poe_fan_temp1           Temperature (in millicelcius) at which the fan
++                                speeds up (default 45000)
++        poe_fan_temp1_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 2000)
++        poe_fan_temp2           Temperature (in millicelcius) at which the fan
++                                speeds up (default 50000)
++        poe_fan_temp2_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 2000)
++        poe_fan_temp3           Temperature (in millicelcius) at which the fan
++                                speeds up (default 55000)
++        poe_fan_temp3_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 5000)
++
++
++Name:   rpi-proto
++Info:   Configures the RPi Proto audio card
++Load:   dtoverlay=rpi-proto
++Params: <None>
++
++
++Name:   rpi-sense
++Info:   Raspberry Pi Sense HAT
++Load:   dtoverlay=rpi-sense
++Params: <None>
++
++
++Name:   rpi-tv
++Info:   Raspberry Pi TV HAT
++Load:   dtoverlay=rpi-tv
++Params: <None>
++
++
++Name:   rpivid-v4l2
++Info:   Load the V4L2 stateless video decoder driver for the HEVC block,
++        disabling the memory mapped devices in the process.
++Load:   dtoverlay=rpivid-v4l2
++Params: <None>
++
++
++Name:   rra-digidac1-wm8741-audio
++Info:   Configures the Red Rocks Audio DigiDAC1 soundcard
++Load:   dtoverlay=rra-digidac1-wm8741-audio
++Params: <None>
++
++
++Name:   sainsmart18
++Info:   Overlay for the SPI-connected Sainsmart 1.8" display (based on the
++        ST7735R chip).
++Load:   dtoverlay=sainsmart18,<param>=<val>
++Params: rotate                  Display rotation {0,90,180,270}
++        speed                   SPI bus speed in Hz (default 4000000)
++        fps                     Display frame rate in Hz
++        bgr                     Enable BGR mode (default off)
++        debug                   Debug output level {0-7}
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++
++
++Name:   sc16is750-i2c
++Info:   Overlay for the NXP SC16IS750 UART with I2C Interface
++        Enables the chip on I2C1 at 0x48 (or the "addr" parameter value). To
++        select another address, please refer to table 10 in reference manual.
++Load:   dtoverlay=sc16is750-i2c,<param>=<val>
++Params: int_pin                 GPIO used for IRQ (default 24)
++        addr                    Address (default 0x48)
++        xtal                    On-board crystal frequency (default 14745600)
++
++
++Name:   sc16is752-i2c
++Info:   Overlay for the NXP SC16IS752 dual UART with I2C Interface
++        Enables the chip on I2C1 at 0x48 (or the "addr" parameter value). To
++        select another address, please refer to table 10 in reference manual.
++Load:   dtoverlay=sc16is752-i2c,<param>=<val>
++Params: int_pin                 GPIO used for IRQ (default 24)
++        addr                    Address (default 0x48)
++        xtal                    On-board crystal frequency (default 14745600)
++
++
++Name:   sc16is752-spi0
++Info:   Overlay for the NXP SC16IS752 Dual UART with SPI Interface
++        Enables the chip on SPI0.
++Load:   dtoverlay=sc16is752-spi0,<param>=<val>
++Params: int_pin                 GPIO used for IRQ (default 24)
++        xtal                    On-board crystal frequency (default 14745600)
++
++
++Name:   sc16is752-spi1
++Info:   Overlay for the NXP SC16IS752 Dual UART with SPI Interface
++        Enables the chip on SPI1.
++        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
++              A+, B+, Zero and PI2 B; as well as the Compute Module.
++
++Load:   dtoverlay=sc16is752-spi1,<param>=<val>
++Params: int_pin                 GPIO used for IRQ (default 24)
++        xtal                    On-board crystal frequency (default 14745600)
++
++
++Name:   sdhost
++Info:   Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock.
++        N.B. This overlay is designed for situations where the mmc driver is
++        the default, so it disables the other (mmc) interface - this will kill
++        WiFi on a Pi3. If this isn't what you want, either use the sdtweak
++        overlay or the new sd_* dtparams of the base DTBs.
++Load:   dtoverlay=sdhost,<param>=<val>
++Params: overclock_50            Clock (in MHz) to use when the MMC framework
++                                requests 50MHz
++
++        force_pio               Disable DMA support (default off)
++
++        pio_limit               Number of blocks above which to use DMA
++                                (default 1)
++
++        debug                   Enable debug output (default off)
++
++
++Name:   sdio
++Info:   Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock,
++        and enables SDIO via GPIOs 22-27. An example of use in 1-bit mode is
++        "dtoverlay=sdio,bus_width=1,gpios_22_25"
++Load:   dtoverlay=sdio,<param>=<val>
++Params: sdio_overclock          SDIO Clock (in MHz) to use when the MMC
++                                framework requests 50MHz
++
++        poll_once               Disable SDIO-device polling every second
++                                (default on: polling once at boot-time)
++
++        bus_width               Set the SDIO host bus width (default 4 bits)
++
++        gpios_22_25             Select GPIOs 22-25 for 1-bit mode. Must be used
++                                with bus_width=1. This replaces the sdio-1bit
++                                overlay, which is now deprecated.
++
++        gpios_34_37             Select GPIOs 34-37 for 1-bit mode. Must be used
++                                with bus_width=1.
++
++        gpios_34_39             Select GPIOs 34-39 for 4-bit mode. Must be used
++                                with bus_width=4 (the default).
++
++
++Name:   sdio-1bit
++Info:   This overlay is now deprecated. Use
++        "dtoverlay=sdio,bus_width=1,gpios_22_25" instead.
++Load:   <Deprecated>
++
++
++Name:   sdtweak
++Info:   Tunes the bcm2835-sdhost SD/MMC driver
++        N.B. This functionality is now available via the sd_* dtparams in the
++        base DTB.
++Load:   dtoverlay=sdtweak,<param>=<val>
++Params: overclock_50            Clock (in MHz) to use when the MMC framework
++                                requests 50MHz
++
++        force_pio               Disable DMA support (default off)
++
++        pio_limit               Number of blocks above which to use DMA
++                                (default 1)
++
++        debug                   Enable debug output (default off)
++
++        poll_once               Looks for a card once after booting. Useful
++                                for network booting scenarios to avoid the
++                                overhead of continuous polling. N.B. Using
++                                this option restricts the system to using a
++                                single card per boot (or none at all).
++                                (default off)
++
++        enable                  Set to off to completely disable the interface
++                                (default on)
++
++
++Name:   sh1106-spi
++Info:   Overlay for SH1106 OLED via SPI using fbtft staging driver.
++Load:   dtoverlay=sh1106-spi,<param>=<val>
++Params: speed                   SPI bus speed (default 4000000)
++        rotate                  Display rotation (0, 90, 180 or 270; default 0)
++        fps                     Delay between frame updates (default 25)
++        debug                   Debug output level (0-7; default 0)
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++        height                  Display height (32 or 64; default 64)
++
++
++Name:   smi
++Info:   Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
++Load:   dtoverlay=smi
++Params: <None>
++
++
++Name:   smi-dev
++Info:   Enables the userspace interface for the SMI driver
++Load:   dtoverlay=smi-dev
++Params: <None>
++
++
++Name:   smi-nand
++Info:   Enables access to NAND flash via the SMI interface
++Load:   dtoverlay=smi-nand
++Params: <None>
++
++
++Name:   spi-gpio35-39
++Info:   Move SPI function block to GPIO 35 to 39
++Load:   dtoverlay=spi-gpio35-39
++Params: <None>
++
++
++Name:   spi-gpio40-45
++Info:   Move SPI function block to GPIOs 40 to 45
++Load:   dtoverlay=spi-gpio40-45
++Params: <None>
++
++
++Name:   spi-rtc
++Info:   Adds support for a number of SPI Real Time Clock devices
++Load:   dtoverlay=spi-rtc,<param>=<val>
++Params: pcf2123                 Select the PCF2123 device
++
++
++Name:   spi0-1cs
++Info:   Only use one CS pin for SPI0
++Load:   dtoverlay=spi0-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 8)
++        no_miso                 Don't claim and use the MISO pin (9), freeing
++                                it for other uses.
++
++
++Name:   spi0-2cs
++Info:   Change the CS pins for SPI0
++Load:   dtoverlay=spi0-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 8)
++        cs1_pin                 GPIO pin for CS1 (default 7)
++        no_miso                 Don't claim and use the MISO pin (9), freeing
++                                it for other uses.
++
++
++Name:   spi0-cs
++Info:   This overlay has been renamed spi0-2cs, keeping spi0-cs as an
++        alias for backwards compatibility.
++Load:   <Deprecated>
++
++
++Name:   spi0-hw-cs
++Info:   This overlay has been deprecated and removed because it is no longer
++        necessary and has been seen to prevent spi0 from working.
++Load:   <Deprecated>
++
++
++Name:   spi1-1cs
++Info:   Enables spi1 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin number for the CS line and spidev device node
++        creation are configurable.
++        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
++              A+, B+, Zero and PI2 B; as well as the Compute Module.
++Load:   dtoverlay=spi1-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.0 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi1-2cs
++Info:   Enables spi1 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable.
++        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
++              A+, B+, Zero and PI2 B; as well as the Compute Module.
++Load:   dtoverlay=spi1-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 17 - BCM SPI1_CE1).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.0 (default
++                                is 'okay' or enabled).
++        cs1_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.1 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi1-3cs
++Info:   Enables spi1 with three chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable.
++        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
++              A+, B+, Zero and PI2 B; as well as the Compute Module.
++Load:   dtoverlay=spi1-3cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 17 - BCM SPI1_CE1).
++        cs2_pin                 GPIO pin for CS2 (default 16 - BCM SPI1_CE2).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.0 (default
++                                is 'okay' or enabled).
++        cs1_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.1 (default
++                                is 'okay' or enabled).
++        cs2_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev1.2 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi2-1cs
++Info:   Enables spi2 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin number for the CS line and spidev device node
++        creation are configurable.
++        N.B.: spi2 is only accessible with the Compute Module.
++Load:   dtoverlay=spi2-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.0 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi2-2cs
++Info:   Enables spi2 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable.
++        N.B.: spi2 is only accessible with the Compute Module.
++Load:   dtoverlay=spi2-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 44 - BCM SPI2_CE1).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.0 (default
++                                is 'okay' or enabled).
++        cs1_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.1 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi2-3cs
++Info:   Enables spi2 with three chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable.
++        N.B.: spi2 is only accessible with the Compute Module.
++Load:   dtoverlay=spi2-3cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 44 - BCM SPI2_CE1).
++        cs2_pin                 GPIO pin for CS2 (default 45 - BCM SPI2_CE2).
++        cs0_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.0 (default
++                                is 'okay' or enabled).
++        cs1_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.1 (default
++                                is 'okay' or enabled).
++        cs2_spidev              Set to 'disabled' to stop the creation of a
++                                userspace device node /dev/spidev2.2 (default
++                                is 'okay' or enabled).
++
++
++Name:   spi3-1cs
++Info:   Enables spi3 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin number for the CS line and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi3-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 0 - BCM SPI3_CE0).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev3.0 (default
++                                is 'on' or enabled).
++
++
++Name:   spi3-2cs
++Info:   Enables spi3 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi3-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 0 - BCM SPI3_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 24 - BCM SPI3_CE1).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev3.0 (default
++                                is 'on' or enabled).
++        cs1_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev3.1 (default
++                                is 'on' or enabled).
++
++
++Name:   spi4-1cs
++Info:   Enables spi4 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin number for the CS line and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi4-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 4 - BCM SPI4_CE0).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev4.0 (default
++                                is 'on' or enabled).
++
++
++Name:   spi4-2cs
++Info:   Enables spi4 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi4-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 4 - BCM SPI4_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 25 - BCM SPI4_CE1).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev4.0 (default
++                                is 'on' or enabled).
++        cs1_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev4.1 (default
++                                is 'on' or enabled).
++
++
++Name:   spi5-1cs
++Info:   Enables spi5 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi5-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 12 - BCM SPI5_CE0).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev5.0 (default
++                                is 'on' or enabled).
++
++
++Name:   spi5-2cs
++Info:   Enables spi5 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi5-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 12 - BCM SPI5_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 26 - BCM SPI5_CE1).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev5.0 (default
++                                is 'on' or enabled).
++        cs1_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev5.1 (default
++                                is 'on' or enabled).
++
++
++Name:   spi6-1cs
++Info:   Enables spi6 with a single chip select (CS) line and associated spidev
++        dev node. The gpio pin number for the CS line and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi6-1cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI6_CE0).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev6.0 (default
++                                is 'on' or enabled).
++
++
++Name:   spi6-2cs
++Info:   Enables spi6 with two chip select (CS) lines and associated spidev
++        dev nodes. The gpio pin numbers for the CS lines and spidev device node
++        creation are configurable. BCM2711 only.
++Load:   dtoverlay=spi6-2cs,<param>=<val>
++Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI6_CE0).
++        cs1_pin                 GPIO pin for CS1 (default 27 - BCM SPI6_CE1).
++        cs0_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev6.0 (default
++                                is 'on' or enabled).
++        cs1_spidev              Set to 'off' to prevent the creation of a
++                                userspace device node /dev/spidev6.1 (default
++                                is 'on' or enabled).
++
++
++Name:   ssd1306
++Info:   Overlay for activation of SSD1306 over I2C OLED display framebuffer.
++Load:   dtoverlay=ssd1306,<param>=<val>
++Params: address                 Location in display memory of first character.
++                                (default=0)
++        width                   Width of display. (default=128)
++        height                  Height of display. (default=64)
++        offset                  virtual channel a. (default=0)
++        normal                  Has no effect on displays tested. (default=not
++                                set)
++        sequential              Set this if every other scan line is missing.
++                                (default=not set)
++        remapped                Set this if display is garbled. (default=not
++                                set)
++        inverted                Set this if display is inverted and mirrored.
++                                (default=not set)
++
++        Examples:
++        Typical usage for 128x64 display: dtoverlay=ssd1306,inverted
++
++        Typical usage for 128x32 display: dtoverlay=ssd1306,inverted,sequential
++
++        i2c_baudrate=400000 will speed up the display.
++
++        i2c_baudrate=1000000 seems to work even though it's not officially
++        supported by the hardware, and is faster still.
++
++        For more information refer to the device datasheet at:
++        https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
++
++
++Name:   ssd1306-spi
++Info:   Overlay for SSD1306 OLED via SPI using fbtft staging driver.
++Load:   dtoverlay=ssd1306-spi,<param>=<val>
++Params: speed                   SPI bus speed (default 10000000)
++        rotate                  Display rotation (0, 90, 180 or 270; default 0)
++        fps                     Delay between frame updates (default 25)
++        debug                   Debug output level (0-7; default 0)
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++        height                  Display height (32 or 64; default 64)
++
++
++Name:   ssd1351-spi
++Info:   Overlay for SSD1351 OLED via SPI using fbtft staging driver.
++Load:   dtoverlay=ssd1351-spi,<param>=<val>
++Params: speed                   SPI bus speed (default 4500000)
++        rotate                  Display rotation (0, 90, 180 or 270; default 0)
++        fps                     Delay between frame updates (default 25)
++        debug                   Debug output level (0-7; default 0)
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++
++
++Name:   superaudioboard
++Info:   Configures the SuperAudioBoard sound card
++Load:   dtoverlay=superaudioboard,<param>=<val>
++Params: gpiopin                 GPIO pin for codec reset
++
++
++Name:   sx150x
++Info:   Configures the Semtech SX150X I2C GPIO expanders.
++Load:   dtoverlay=sx150x,<param>=<val>
++Params: sx150<x>-<n>-<m>        Enables SX150X device on I2C#<n> with slave
++                                address <m>. <x> may be 1-9. <n> may be 0 or 1.
++                                Permissible values of <m> (which is denoted in
++                                hex) depend on the device variant. For SX1501,
++                                SX1502, SX1504 and SX1505, <m> may be 20 or 21.
++                                For SX1503 and SX1506, <m> may be 20. For
++                                SX1507 and SX1509, <m> may be 3E, 3F, 70 or 71.
++                                For SX1508, <m> may be 20, 21, 22 or 23.
++
++        sx150<x>-<n>-<m>-int-gpio
++                                Integer, enables interrupts on SX150X device on
++                                I2C#<n> with slave address <m>, specifies
++                                the GPIO pin to which NINT output of SX150X is
++                                connected.
++
++
++Name:   tc358743
++Info:   Toshiba TC358743 HDMI to CSI-2 bridge chip.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=tc358743,<param>=<val>
++Params: 4lane                   Use 4 lanes (only applicable to Compute Modules
++                                CAM1 connector).
++
++        link-frequency          Set the link frequency. Only values of 297000000
++                                (574Mbit/s) and 486000000 (972Mbit/s - default)
++                                are supported by the driver.
++
++
++Name:   tc358743-audio
++Info:   Used in combination with the tc358743-fast overlay to route the audio
++        from the TC358743 over I2S to the Pi.
++        Wiring is LRCK/WFS to GPIO 19, BCK/SCK to GPIO 18, and DATA/SD to GPIO
++        20.
++Load:   dtoverlay=tc358743-audio,<param>=<val>
++Params: card-name               Override the default, "tc358743", card name.
++
++
++Name:   tinylcd35
++Info:   3.5" Color TFT Display by www.tinylcd.com
++        Options: Touch, RTC, keypad
++Load:   dtoverlay=tinylcd35,<param>=<val>
++Params: speed                   Display SPI bus speed
++
++        rotate                  Display rotation {0,90,180,270}
++
++        fps                     Delay between frame updates
++
++        debug                   Debug output level {0-7}
++
++        touch                   Enable touch panel
++
++        touchgpio               Touch controller IRQ GPIO
++
++        xohms                   Touchpanel: Resistance of X-plate in ohms
++
++        rtc-pcf                 PCF8563 Real Time Clock
++
++        rtc-ds                  DS1307 Real Time Clock
++
++        keypad                  Enable keypad
++
++        Examples:
++            Display with touchpanel, PCF8563 RTC and keypad:
++                dtoverlay=tinylcd35,touch,rtc-pcf,keypad
++            Old touch display:
++                dtoverlay=tinylcd35,touch,touchgpio=3
++
++
++Name:   tpm-slb9670
++Info:   Enables support for Infineon SLB9670 Trusted Platform Module add-on
++        boards, which can be used as a secure key storage and hwrng,
++        available as "Iridium SLB9670" by Infineon and "LetsTrust TPM" by pi3g.
++Load:   dtoverlay=tpm-slb9670
++Params: <None>
++
++
++Name:   uart0
++Info:   Change the pin usage of uart0
++Load:   dtoverlay=uart0,<param>=<val>
++Params: txd0_pin                GPIO pin for TXD0 (14, 32 or 36 - default 14)
++
++        rxd0_pin                GPIO pin for RXD0 (15, 33 or 37 - default 15)
++
++        pin_func                Alternative pin function - 4(Alt0) for 14&15,
++                                7(Alt3) for 32&33, 6(Alt2) for 36&37
++
++
++Name:   uart1
++Info:   Change the pin usage of uart1
++Load:   dtoverlay=uart1,<param>=<val>
++Params: txd1_pin                GPIO pin for TXD1 (14, 32 or 40 - default 14)
++
++        rxd1_pin                GPIO pin for RXD1 (15, 33 or 41 - default 15)
++
++
++Name:   uart2
++Info:   Enable uart 2 on GPIOs 0-3. BCM2711 only.
++Load:   dtoverlay=uart2,<param>
++Params: ctsrts                  Enable CTS/RTS on GPIOs 2-3 (default off)
++
++
++Name:   uart3
++Info:   Enable uart 3 on GPIOs 4-7. BCM2711 only.
++Load:   dtoverlay=uart3,<param>
++Params: ctsrts                  Enable CTS/RTS on GPIOs 6-7 (default off)
++
++
++Name:   uart4
++Info:   Enable uart 4 on GPIOs 8-11. BCM2711 only.
++Load:   dtoverlay=uart4,<param>
++Params: ctsrts                  Enable CTS/RTS on GPIOs 10-11 (default off)
++
++
++Name:   uart5
++Info:   Enable uart 5 on GPIOs 12-15. BCM2711 only.
++Load:   dtoverlay=uart5,<param>
++Params: ctsrts                  Enable CTS/RTS on GPIOs 14-15 (default off)
++
++
++Name:   udrc
++Info:   Configures the NW Digital Radio UDRC Hat
++Load:   dtoverlay=udrc,<param>=<val>
++Params: alsaname                Name of the ALSA audio device (default "udrc")
++
++
++Name:   upstream
++Info:   Allow usage of downstream .dtb with upstream kernel. Comprises the
++        vc4-kms-v3d and dwc2 overlays.
++Load:   dtoverlay=upstream
++Params: <None>
++
++
++Name:   upstream-aux-interrupt
++Info:   This overlay has been deprecated and removed because it is no longer
++        necessary.
++Load:   <Deprecated>
++
++
++Name:   upstream-pi4
++Info:   Allow usage of downstream .dtb with upstream kernel on Pi 4. Comprises
++        the vc4-kms-v3d-pi4 and dwc2 overlays.
++Load:   dtoverlay=upstream-pi4
++Params: <None>
++
++
++Name:   vc4-fkms-v3d
++Info:   Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx
++        display stack.
++Load:   dtoverlay=vc4-fkms-v3d,<param>
++Params: cma-512                 CMA is 512MB (needs 1GB)
++        cma-448                 CMA is 448MB (needs 1GB)
++        cma-384                 CMA is 384MB (needs 1GB)
++        cma-320                 CMA is 320MB (needs 1GB)
++        cma-256                 CMA is 256MB (needs 1GB)
++        cma-192                 CMA is 192MB (needs 1GB)
++        cma-128                 CMA is 128MB
++        cma-96                  CMA is 96MB
++        cma-64                  CMA is 64MB
++        cma-size                CMA size in bytes, 4MB aligned
++        cma-default             Use upstream's default value
++
++
++Name:   vc4-kms-kippah-7inch
++Info:   Enable the Adafruit DPI Kippah with the 7" Ontat panel attached.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-kippah-7inch
++Params: <None>
++
++
++Name:   vc4-kms-v3d
++Info:   Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver.
++Load:   dtoverlay=vc4-kms-v3d,<param>
++Params: cma-512                 CMA is 512MB (needs 1GB)
++        cma-448                 CMA is 448MB (needs 1GB)
++        cma-384                 CMA is 384MB (needs 1GB)
++        cma-320                 CMA is 320MB (needs 1GB)
++        cma-256                 CMA is 256MB (needs 1GB)
++        cma-192                 CMA is 192MB (needs 1GB)
++        cma-128                 CMA is 128MB
++        cma-96                  CMA is 96MB
++        cma-64                  CMA is 64MB
++        cma-size                CMA size in bytes, 4MB aligned
++        cma-default             Use upstream's default value
++        audio                   Enable or disable audio over HDMI (default "on")
++        noaudio                 Disable all HDMI audio (default "off")
++
++
++Name:   vc4-kms-v3d-pi4
++Info:   Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver for Pi4.
++Load:   dtoverlay=vc4-kms-v3d-pi4,<param>
++Params: cma-512                 CMA is 512MB
++        cma-448                 CMA is 448MB
++        cma-384                 CMA is 384MB
++        cma-320                 CMA is 320MB
++        cma-256                 CMA is 256MB
++        cma-192                 CMA is 192MB
++        cma-128                 CMA is 128MB
++        cma-96                  CMA is 96MB
++        cma-64                  CMA is 64MB
++        cma-size                CMA size in bytes, 4MB aligned
++        cma-default             Use upstream's default value
++        audio                   Enable or disable audio over HDMI0 (default
++                                "on")
++        audio1                  Enable or disable audio over HDMI1 (default
++                                "on")
++        noaudio                 Disable all HDMI audio (default "off")
++        composite               Enable the composite output (disables all other
++                                outputs)
++
++
++Name:   vga666
++Info:   Overlay for the Fen Logic VGA666 board
++        This uses GPIOs 2-21 (so no I2C), and activates the output 2-3 seconds
++        after the kernel has started.
++Load:   dtoverlay=vga666
++Params: <None>
++
++
++Name:   w1-gpio
++Info:   Configures the w1-gpio Onewire interface module.
++        Use this overlay if you *don't* need a GPIO to drive an external pullup.
++Load:   dtoverlay=w1-gpio,<param>=<val>
++Params: gpiopin                 GPIO for I/O (default "4")
++        pullup                  Now enabled by default (ignored)
++
++
++Name:   w1-gpio-pullup
++Info:   Configures the w1-gpio Onewire interface module.
++        Use this overlay if you *do* need a GPIO to drive an external pullup.
++Load:   dtoverlay=w1-gpio-pullup,<param>=<val>
++Params: gpiopin                 GPIO for I/O (default "4")
++        extpullup               GPIO for external pullup (default "5")
++        pullup                  Now enabled by default (ignored)
++
++
++Name:   w5500
++Info:   Overlay for the Wiznet W5500 Ethernet Controller on SPI0
++Load:   dtoverlay=w5500,<param>=<val>
++Params: int_pin                 GPIO used for INT (default 25)
++
++        speed                   SPI bus speed (default 30000000)
++
++        cs                      SPI bus Chip Select (default 0)
++
++
++Name:   wittypi
++Info:   Configures the wittypi RTC module.
++Load:   dtoverlay=wittypi,<param>=<val>
++Params: led_gpio                GPIO for LED (default "17")
++        led_trigger             Choose which activity the LED tracks (default
++                                "default-on")
++
++
++Troubleshooting
++===============
++
++If you are experiencing problems that you think are DT-related, enable DT
++diagnostic output by adding this to /boot/config.txt:
++
++    dtdebug=on
++
++and rebooting. Then run:
++
++    sudo vcdbg log msg
++
++and look for relevant messages.
++
++Further reading
++===============
++
++This is only meant to be a quick introduction to the subject of Device Tree on
++Raspberry Pi. There is a more complete explanation here:
++
++http://www.raspberrypi.org/documentation/configuration/device-tree.md
+diff --git a/arch/arm/boot/dts/overlays/act-led-overlay.dts b/arch/arm/boot/dts/overlays/act-led-overlay.dts
+new file mode 100644
+index 000000000000..2f4bbb407f89
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/act-led-overlay.dts
+@@ -0,0 +1,27 @@
++/dts-v1/;
++/plugin/;
++
++/* Pi3 uses a GPIO expander to drive the LEDs which can only be accessed
++   from the VPU. There is a special driver for this with a separate DT node,
++   which has the unfortunate consequence of breaking the act_led_gpio and
++   act_led_activelow dtparams.
++
++   This overlay changes the GPIO controller back to the standard one and
++   restores the dtparams.
++*/
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&act_led>;
++		frag0: __overlay__ {
++			gpios = <&gpio 0 0>;
++		};
++	};
++
++	__overrides__ {
++		gpio = <&frag0>,"gpios:4";
++		activelow = <&frag0>,"gpios:8";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/adafruit18-overlay.dts b/arch/arm/boot/dts/overlays/adafruit18-overlay.dts
+new file mode 100644
+index 000000000000..e1ce94a8cd3e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/adafruit18-overlay.dts
+@@ -0,0 +1,55 @@
++/*
++ * Device Tree overlay for Adafruit 1.8" TFT LCD with ST7735R chip 160x128
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			af18: adafruit18@0 {
++				compatible = "fbtft,adafruit18";
++				reg = <0>;
++				pinctrl-names = "default";
++				spi-max-frequency = <40000000>;
++				rotate = <90>;
++				buswidth = <8>;
++				fps = <50>;
++				height = <160>;
++				width = <128>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 18 0>;
++				debug = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		green = <&af18>, "compatible=fbtft,adafruit18_green";
++		speed     = <&af18>,"spi-max-frequency:0";
++		rotate    = <&af18>,"rotate:0";
++		fps       = <&af18>,"fps:0";
++		bgr       = <&af18>,"bgr?";
++		debug     = <&af18>,"debug:0";
++		dc_pin    = <&af18>,"dc-gpios:4";
++		reset_pin = <&af18>,"reset-gpios:4";
++		led_pin   = <&af18>,"led-gpios:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts b/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts
+new file mode 100644
+index 000000000000..298488e19156
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/adau1977-adc-overlay.dts
+@@ -0,0 +1,40 @@
++// Definitions for ADAU1977 ADC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++    
++	fragment@0 {
++        	target = <&i2c>;
++        	
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++			
++			adau1977: codec@11 {
++                        	compatible = "adi,adau1977";
++                        	reg = <0x11>;
++                        	reset-gpios = <&gpio 5 0>;
++				AVDD-supply = <&vdd_3v3_reg>;
++                	};
++        	};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "adi,adau1977-adc";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts b/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts
+new file mode 100644
+index 000000000000..5fed769d2526
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/adau7002-simple-overlay.dts
+@@ -0,0 +1,52 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++        target = <&i2s>;
++        __overlay__ {
++            status = "okay";
++        };
++    };
++
++    fragment@1 {
++        target-path = "/";
++        __overlay__ {
++                adau7002_codec: adau7002-codec {
++                #sound-dai-cells = <0>;
++                compatible = "adi,adau7002";
++/*                IOVDD-supply = <&supply>;*/
++                status = "okay";
++            };
++        };
++    };
++
++    fragment@2 {
++        target = <&sound>;
++            sound_overlay: __overlay__ {
++            compatible = "simple-audio-card";
++            simple-audio-card,format = "i2s";
++            simple-audio-card,name = "adau7002";
++            simple-audio-card,bitclock-slave = <&dailink0_slave>;
++            simple-audio-card,frame-slave = <&dailink0_slave>;
++            simple-audio-card,widgets =
++                    "Microphone", "Microphone Jack";
++            simple-audio-card,routing =
++                    "PDM_DAT", "Microphone Jack";
++            status = "okay";
++            simple-audio-card,cpu {
++                sound-dai = <&i2s>;
++            };
++            dailink0_slave: simple-audio-card,codec {
++                sound-dai = <&adau7002_codec>;
++            };
++        };
++    };
++
++
++    __overrides__ {
++        card-name = <&sound_overlay>,"simple-audio-card,name";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/ads1015-overlay.dts b/arch/arm/boot/dts/overlays/ads1015-overlay.dts
+new file mode 100644
+index 000000000000..deeee1228395
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ads1015-overlay.dts
+@@ -0,0 +1,98 @@
++/*
++ * 2016 - Erik Sejr
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    /* ----------- ADS1015 ------------ */
++    fragment@0 {
++        target = <&i2c_arm>;
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            status = "okay";
++            ads1015: ads1015 {
++                compatible = "ti,ads1015";
++                status = "okay";
++                #address-cells = <1>;
++                #size-cells = <0>;
++                reg = <0x48>;
++            };
++        };
++    };
++
++    fragment@1 {
++        target = <&ads1015>;
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_a: channel_a {
++                reg = <4>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@2 {
++        target = <&ads1015>;
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_b: channel_b {
++                reg = <5>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@3 {
++        target = <&ads1015>;
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_c: channel_c {
++                reg = <6>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@4 {
++        target = <&ads1015>;
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_d: channel_d {
++                reg = <7>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    __overrides__ {
++        addr =            <&ads1015>,"reg:0";
++        cha_enable =      <0>,"=1";
++        cha_cfg =         <&channel_a>,"reg:0";
++        cha_gain =        <&channel_a>,"ti,gain:0";
++        cha_datarate =    <&channel_a>,"ti,datarate:0";
++        chb_enable =      <0>,"=2";
++        chb_cfg =         <&channel_b>,"reg:0";
++        chb_gain =        <&channel_b>,"ti,gain:0";
++        chb_datarate =    <&channel_b>,"ti,datarate:0";
++        chc_enable =      <0>,"=3";
++        chc_cfg =         <&channel_c>,"reg:0";
++        chc_gain =        <&channel_c>,"ti,gain:0";
++        chc_datarate =    <&channel_c>,"ti,datarate:0";
++        chd_enable =      <0>,"=4";
++        chd_cfg =         <&channel_d>,"reg:0";
++        chd_gain =        <&channel_d>,"ti,gain:0";
++        chd_datarate =    <&channel_d>,"ti,datarate:0";
++   };
++
++};
+diff --git a/arch/arm/boot/dts/overlays/ads1115-overlay.dts b/arch/arm/boot/dts/overlays/ads1115-overlay.dts
+new file mode 100644
+index 000000000000..4fc571c2db33
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ads1115-overlay.dts
+@@ -0,0 +1,103 @@
++/*
++ * TI ADS1115 multi-channel ADC overlay
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ads1115: ads1115 {
++				compatible = "ti,ads1115";
++				status = "okay";
++				#address-cells = <1>;
++				#size-cells = <0>;
++				reg = <0x48>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&ads1115>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			channel_a: channel_a {
++				reg = <4>;
++				ti,gain = <1>;
++				ti,datarate = <7>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&ads1115>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			channel_b: channel_b {
++				reg = <5>;
++				ti,gain = <1>;
++				ti,datarate = <7>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&ads1115>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			channel_c: channel_c {
++				reg = <6>;
++				ti,gain = <1>;
++				ti,datarate = <7>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&ads1115>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			channel_d: channel_d {
++				reg = <7>;
++				ti,gain = <1>;
++				ti,datarate = <7>;
++			};
++		};
++	};
++
++	__overrides__ {
++		addr =            <&ads1115>,"reg:0";
++		cha_enable =      <0>,"=1";
++		cha_cfg =         <&channel_a>,"reg:0";
++		cha_gain =        <&channel_a>,"ti,gain:0";
++		cha_datarate =    <&channel_a>,"ti,datarate:0";
++		chb_enable =      <0>,"=2";
++		chb_cfg =         <&channel_b>,"reg:0";
++		chb_gain =        <&channel_b>,"ti,gain:0";
++		chb_datarate =    <&channel_b>,"ti,datarate:0";
++		chc_enable =      <0>,"=3";
++		chc_cfg =         <&channel_c>,"reg:0";
++		chc_gain =        <&channel_c>,"ti,gain:0";
++		chc_datarate =    <&channel_c>,"ti,datarate:0";
++		chd_enable =      <0>,"=4";
++		chd_cfg =         <&channel_d>,"reg:0";
++		chd_gain =        <&channel_d>,"ti,gain:0";
++		chd_datarate =    <&channel_d>,"ti,datarate:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ads7846-overlay.dts b/arch/arm/boot/dts/overlays/ads7846-overlay.dts
+new file mode 100644
+index 000000000000..1c5c9b6bb6ff
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ads7846-overlay.dts
+@@ -0,0 +1,89 @@
++/*
++ * Generic Device Tree overlay for the ADS7846 touch controller
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			ads7846_pins: ads7846_pins {
++				brcm,pins = <255>; /* illegal default value */
++				brcm,function = <0>; /* in */
++				brcm,pull = <0>; /* none */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ads7846: ads7846@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&ads7846_pins>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <255 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 255 0>;
++
++				/* driver defaults */
++				ti,x-min = /bits/ 16 <0>;
++				ti,y-min = /bits/ 16 <0>;
++				ti,x-max = /bits/ 16 <0x0FFF>;
++				ti,y-max = /bits/ 16 <0x0FFF>;
++				ti,pressure-min = /bits/ 16 <0>;
++				ti,pressure-max = /bits/ 16 <0xFFFF>;
++				ti,x-plate-ohms = /bits/ 16 <400>;
++			};
++		};
++	};
++	__overrides__ {
++		cs =     <&ads7846>,"reg:0";
++		speed =  <&ads7846>,"spi-max-frequency:0";
++		penirq = <&ads7846_pins>,"brcm,pins:0", /* REQUIRED */
++			 <&ads7846>,"interrupts:0",
++			 <&ads7846>,"pendown-gpio:4";
++		penirq_pull = <&ads7846_pins>,"brcm,pull:0";
++		swapxy = <&ads7846>,"ti,swap-xy?";
++		xmin =   <&ads7846>,"ti,x-min;0";
++		ymin =   <&ads7846>,"ti,y-min;0";
++		xmax =   <&ads7846>,"ti,x-max;0";
++		ymax =   <&ads7846>,"ti,y-max;0";
++		pmin =   <&ads7846>,"ti,pressure-min;0";
++		pmax =   <&ads7846>,"ti,pressure-max;0";
++		xohms =  <&ads7846>,"ti,x-plate-ohms;0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/adv7282m-overlay.dts b/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
+new file mode 100644
+index 000000000000..5d85dfd0595c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
+@@ -0,0 +1,65 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for Analog Devices ADV7282-M video to CSI2 bridge on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			adv728x: adv728x@21 {
++				compatible = "adi,adv7282-m";
++				reg = <0x21>;
++				status = "okay";
++				clock-frequency = <24000000>;
++				port {
++					adv728x_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1>;
++						link-frequencies =
++							/bits/ 64 <297000000>;
++
++						mclk-frequency = <12000000>;
++					};
++				};
++			};
++		};
++	};
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&adv728x_0>;
++					data-lanes = <1>;
++				};
++			};
++		};
++	};
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		addr =			<&adv728x>,"reg:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/adv728x-m-overlay.dts b/arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
+new file mode 100644
+index 000000000000..ea392e886984
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
+@@ -0,0 +1,37 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for Analog Devices ADV728[0|1|2]-M video to CSI2 bridges on VC
++// I2C bus
++
++#include "adv7282m-overlay.dts"
++
++/{
++	compatible = "brcm,bcm2835";
++
++	// Fragment numbers deliberately high to avoid conflicts with the
++	// included adv7282m overlay file.
++
++	fragment@101 {
++		target = <&adv728x>;
++		__dormant__ {
++			compatible = "adi,adv7280-m";
++		};
++	};
++	fragment@102 {
++		target = <&adv728x>;
++		__dormant__ {
++			compatible = "adi,adv7281-m";
++		};
++	};
++	fragment@103 {
++		target = <&adv728x>;
++		__dormant__ {
++			compatible = "adi,adv7281-ma";
++		};
++	};
++
++	__overrides__ {
++		adv7280m = <0>, "+101";
++		adv7281m = <0>, "+102";
++		adv7281ma = <0>, "+103";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts b/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts
+new file mode 100644
+index 000000000000..82f9b3734fb1
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/akkordion-iqdacplus-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for Digital Dreamtime Akkordion using IQaudIO DAC+ or DACZero
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4c>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		frag2: __overlay__ {
++			compatible = "iqaudio,iqaudio-dac";
++			card_name = "Akkordion";
++			dai_name = "IQaudIO DAC";
++			dai_stream_name = "IQaudIO DAC HiFi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts
+new file mode 100644
+index 000000000000..873cb2fab52b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-boss-dac-pcm512x-audio-overlay.dts
+@@ -0,0 +1,59 @@
++/*
++ * Definitions for Allo Boss DAC board
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			boss_osc: boss_osc {
++				compatible = "allo,dac-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				clocks = <&boss_osc>;
++				reg = <0x4d>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		boss_dac: __overlay__ {
++			compatible = "allo,boss-dac";
++			i2s-controller = <&i2s>;
++			mute-gpios = <&gpio 6 1>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&boss_dac>,"allo,24db_digital_gain?";
++		slave = <&boss_dac>,"allo,slave?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/allo-digione-overlay.dts b/arch/arm/boot/dts/overlays/allo-digione-overlay.dts
+new file mode 100644
+index 000000000000..ea018ace34d4
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-digione-overlay.dts
+@@ -0,0 +1,44 @@
++// Definitions for Allo DigiOne
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++				wlf,reset-gpio = <&gpio 17 0>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "allo,allo-digione";
++			i2s-controller = <&i2s>;
++			status = "okay";
++			clock44-gpio = <&gpio 5 0>;
++			clock48-gpio = <&gpio 6 0>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+new file mode 100644
+index 000000000000..b25fd681f09f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+@@ -0,0 +1,57 @@
++/*
++ * Definitions for Allo Katana DAC boards
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			#sound-dai-cells = <0>;
++			status = "okay";
++			cpu_port: port {
++				cpu_endpoint: endpoint {
++					remote-endpoint = <&codec_endpoint>;
++					bitclock-master = <&codec_endpoint>;
++					frame-master = <&codec_endpoint>;
++					dai-format = "i2s";
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			allo-katana-codec@30 {
++				#sound-dai-cells = <0>;
++				compatible = "allo,allo-katana-codec";
++				reg = <0x30>;
++				port {
++					codec_endpoint: endpoint {
++					remote-endpoint = <&cpu_endpoint>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		katana_dac: __overlay__ {
++			compatible = "audio-graph-card";
++			label = "Allo Katana";
++			dais = <&cpu_port>;
++			status = "okay";
++		};
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts
+new file mode 100644
+index 000000000000..bfc66da6295a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-piano-dac-pcm512x-audio-overlay.dts
+@@ -0,0 +1,54 @@
++/*
++ * Definitions for Allo Piano DAC (2.0/2.1) boards
++ *
++ * NB. The Piano DAC 2.1 board contains 2x TI PCM5142 DAC's. One DAC is stereo
++ * (left/right) and the other provides a subwoofer output, using DSP on the
++ * chip for digital high/low pass crossover.
++ * The initial support for this hardware, that doesn't require any codec driver
++ * modifications, uses only one DAC chip for stereo (left/right) output, the
++ * chip with 0x4c slave address. The other chip at 0x4d is currently ignored!
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5142@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5142";
++				reg = <0x4c>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		piano_dac: __overlay__ {
++			compatible = "allo,piano-dac";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&piano_dac>,"allo,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
+new file mode 100644
+index 000000000000..374c553db062
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
+@@ -0,0 +1,55 @@
++// Definitions for Piano DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			allo_pcm5122_4c: pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4c>;
++				status = "okay";
++			};
++			allo_pcm5122_4d: pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		piano_dac: __overlay__ {
++			compatible = "allo,piano-dac-plus";
++			audio-codec = <&allo_pcm5122_4c &allo_pcm5122_4d>;
++			i2s-controller = <&i2s>;
++			mute1-gpios = <&gpio 6 1>;
++			mute2-gpios = <&gpio 25 1>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&piano_dac>,"allo,24db_digital_gain?";
++		glb_mclk =
++			<&piano_dac>,"allo,glb_mclk?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/anyspi-overlay.dts b/arch/arm/boot/dts/overlays/anyspi-overlay.dts
+new file mode 100755
+index 000000000000..87523dcca318
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/anyspi-overlay.dts
+@@ -0,0 +1,205 @@
++/*
++ * Universal device tree overlay for SPI devices
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@8 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_00: anyspi@0 {
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_01: anyspi@1 {
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_10: anyspi@0 {
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_11: anyspi@1 {
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_12: anyspi@2 {
++				reg = <2>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_20: anyspi@0 {
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_21: anyspi@1 {
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@15 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			anyspi_22: anyspi@2 {
++				reg = <2>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	__overrides__ {
++		spi0-0 = <0>, "+0+8";
++		spi0-1 = <0>, "+1+9";
++		spi1-0 = <0>, "+2+10";
++		spi1-1 = <0>, "+3+11";
++		spi1-2 = <0>, "+4+12";
++		spi2-0 = <0>, "+5+13";
++		spi2-1 = <0>, "+6+14";
++		spi2-2 = <0>, "+7+15";
++		dev = <&anyspi_00>,"compatible",
++		      <&anyspi_01>,"compatible",
++		      <&anyspi_10>,"compatible",
++		      <&anyspi_11>,"compatible",
++		      <&anyspi_12>,"compatible",
++		      <&anyspi_20>,"compatible",
++		      <&anyspi_21>,"compatible",
++		      <&anyspi_22>,"compatible";
++		speed = <&anyspi_00>, "spi-max-frequency:0",
++		        <&anyspi_01>, "spi-max-frequency:0",
++		        <&anyspi_10>, "spi-max-frequency:0",
++		        <&anyspi_11>, "spi-max-frequency:0",
++		        <&anyspi_12>, "spi-max-frequency:0",
++		        <&anyspi_20>, "spi-max-frequency:0",
++		        <&anyspi_21>, "spi-max-frequency:0",
++		        <&anyspi_22>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/apds9960-overlay.dts b/arch/arm/boot/dts/overlays/apds9960-overlay.dts
+new file mode 100644
+index 000000000000..c216932278ab
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/apds9960-overlay.dts
+@@ -0,0 +1,57 @@
++// Definitions for APDS-9960 ambient light and gesture sensor
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			apds9960_pins: apds9960_pins@39 {
++				brcm,pins = <4>;
++				brcm,function = <0>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			apds9960: apds@39 {
++				compatible = "avago,apds9960";
++				reg = <0x39>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c1>;
++		__overlay__ {
++			apds9960_irq: apds@39 {
++				#interrupt-cells=<2>;
++				interrupt-parent = <&gpio>;
++				interrupts = <4 1>;
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin = <&apds9960_pins>,"brcm,pins:0",
++				<&apds9960_irq>,"interrupts:0";
++		noints = <0>,"!1!3";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/applepi-dac-overlay.dts b/arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
+new file mode 100644
+index 000000000000..4769296ec9d6
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
+@@ -0,0 +1,57 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++        target = <&sound>;
++        __overlay__ {
++            compatible = "simple-audio-card";
++            simple-audio-card,name = "ApplePi-DAC";
++
++            status = "okay";
++
++            playback_link: simple-audio-card,dai-link@1 {
++                format = "i2s";
++
++                p_cpu_dai: cpu {
++                    sound-dai = <&i2s>;
++                    dai-tdm-slot-num = <2>;
++                    dai-tdm-slot-width = <32>;
++                };
++
++                p_codec_dai: codec {
++                    sound-dai = <&codec_out>;
++                };
++            };
++        };
++    };
++
++    fragment@1 {
++        target-path = "/";
++        __overlay__ {
++            codec_out: pcm1794a-codec {
++                #sound-dai-cells = <0>;
++                compatible = "ti,pcm1794a";
++                status = "okay";
++            };
++        };
++    };
++
++    fragment@2 {
++        target = <&i2s>;
++        __overlay__ {
++            #sound-dai-cells = <0>;
++            status = "okay";
++        };
++    };
++};
++
++/*
++   Written by: Leonid Ayzenshtat
++   Company: Orchard Audio (www.orchardaudio.com)
++
++   compile with:
++   dtc -@ -H epapr -O dtb -o ApplePi-DAC.dtbo -W no-unit_address_vs_reg ApplePi-DAC.dts
++*/
+diff --git a/arch/arm/boot/dts/overlays/at86rf233-overlay.dts b/arch/arm/boot/dts/overlays/at86rf233-overlay.dts
+new file mode 100644
+index 000000000000..5a3f4571ee78
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/at86rf233-overlay.dts
+@@ -0,0 +1,57 @@
++/dts-v1/;
++/plugin/;
++
++/* Overlay for Atmel AT86RF233 IEEE 802.15.4 WPAN transceiver on spi0.0 */
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			lowpan0: at86rf233@0 {
++				compatible = "atmel,at86rf233";
++				reg = <0>;
++				interrupt-parent = <&gpio>;
++				interrupts = <23 4>; /* active high */
++				reset-gpio = <&gpio 24 1>;
++				sleep-gpio = <&gpio 25 1>;
++				spi-max-frequency = <3000000>;
++				xtal-trim = /bits/ 8 <0xf>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			lowpan0_pins: lowpan0_pins {
++				brcm,pins = <23 24 25>;
++				brcm,function = <0 1 1>; /* in out out */
++			};
++		};
++	};
++
++	__overrides__ {
++		interrupt = <&lowpan0>, "interrupts:0",
++			<&lowpan0_pins>, "brcm,pins:0";
++		reset     = <&lowpan0>, "reset-gpio:4",
++			<&lowpan0_pins>, "brcm,pins:4";
++		sleep     = <&lowpan0>, "sleep-gpio:4",
++			<&lowpan0_pins>, "brcm,pins:8";
++		speed     = <&lowpan0>, "spi-max-frequency:0";
++		trim      = <&lowpan0>, "xtal-trim.0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts
+new file mode 100644
+index 000000000000..57a66eac8e9b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audioinjector-addons-overlay.dts
+@@ -0,0 +1,60 @@
++// Definitions for audioinjector.net audio add on soundcard
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			cs42448_mclk: codec-mclk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <49152000>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			cs42448: cs42448@48 {
++				#sound-dai-cells = <0>;
++				compatible = "cirrus,cs42448";
++				reg = <0x48>;
++				clocks = <&cs42448_mclk>;
++				clock-names = "mclk";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		snd: __overlay__ {
++			compatible = "ai,audioinjector-octo-soundcard";
++			mult-gpios = <&gpio 27 0>, <&gpio 22 0>, <&gpio 23 0>,
++				     <&gpio 24 0>;
++			reset-gpios = <&gpio 5 0>;
++			i2s-controller = <&i2s>;
++			codec = <&cs42448>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		non-stop-clocks = <&snd>, "non-stop-clocks?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts
+new file mode 100644
+index 000000000000..63e05cf9665d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audioinjector-isolated-soundcard-overlay.dts
+@@ -0,0 +1,55 @@
++// Definitions for audioinjector.net audio isolated soundcard
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			cs4272_mclk: codec-mclk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24576000>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			cs4272: cs4271@10 {
++				#sound-dai-cells = <0>;
++				compatible = "cirrus,cs4271";
++				reg = <0x10>;
++				reset-gpio = <&gpio 5 0>;
++				clocks = <&cs4272_mclk>;
++				clock-names = "mclk";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		snd: __overlay__ {
++			compatible = "ai,audioinjector-isolated-soundcard";
++			mute-gpios = <&gpio 17 0>;
++			i2s-controller = <&i2s>;
++			codec = <&cs4272>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts
+new file mode 100644
+index 000000000000..fb4a4678a17a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audioinjector-ultra-overlay.dts
+@@ -0,0 +1,71 @@
++// Definitions for audioinjector.net audio add on soundcard
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			cs4265: cs4265@4e {
++				#sound-dai-cells = <0>;
++				compatible = "cirrus,cs4265";
++				reg = <0x4e>;
++				reset-gpios = <&gpio 5 0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			i2s-controller = <&i2s>;
++			status = "okay";
++
++			simple-audio-card,name = "audioinjector-ultra";
++
++			simple-audio-card,widgets =
++				"Line", "OUTPUTS",
++				"Line", "INPUTS";
++
++			simple-audio-card,routing =
++				"OUTPUTS","LINEOUTL",
++				"OUTPUTS","LINEOUTR",
++				"OUTPUTS","SPDIFOUT",
++				"LINEINL","INPUTS",
++				"LINEINR","INPUTS",
++				"MICL","INPUTS",
++				"MICR","INPUTS";
++
++			simple-audio-card,format = "i2s";
++
++			simple-audio-card,bitclock-master = <&sound_master>;
++			simple-audio-card,frame-master = <&sound_master>;
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++				dai-tdm-slot-num = <2>;
++				dai-tdm-slot-width = <32>;
++			};
++
++			sound_master: simple-audio-card,codec {
++				sound-dai = <&cs4265>;
++				system-clock-frequency = <12288000>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts b/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts
+new file mode 100644
+index 000000000000..68f4427d86c3
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audioinjector-wm8731-audio-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for audioinjector.net audio add on soundcard
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8731@1a {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8731";
++				reg = <0x1a>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "ai,audioinjector-pi-soundcard";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts b/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+new file mode 100644
+index 000000000000..81af26374d92
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+@@ -0,0 +1,82 @@
++// Definitions for audiosense add on soundcard
++/dts-v1/;
++/plugin/;
++#include <dt-bindings/pinctrl/bcm2835.h>
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			codec_reg_1v8: codec-reg-1v8 {
++				compatible = "regulator-fixed";
++				regulator-name = "tlv320aic3204_1v8";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++				regulator-always-on;
++			};
++
++			/* audio external oscillator */
++			codec_osc: codec_osc {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <12000000>;	/* 12 MHz */
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			codec_rst: codec-rst {
++				brcm,pins = <26>;
++				brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			codec: tlv320aic32x4@18 {
++				#sound-dai-cells = <0>;
++				compatible = "ti,tlv320aic32x4";
++				reg = <0x18>;
++
++				clocks = <&codec_osc>;
++				clock-names = "mclk";
++
++				iov-supply = <&vdd_3v3_reg>;
++				ldoin-supply = <&vdd_3v3_reg>;
++
++				gpio-controller;
++				#gpio-cells = <2>;
++				reset-gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "as,audiosense-pi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/audremap-overlay.dts b/arch/arm/boot/dts/overlays/audremap-overlay.dts
+new file mode 100644
+index 000000000000..d624bb3a3fea
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
+@@ -0,0 +1,35 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&audio_pins>;
++                frag0: __overlay__ {
++                };
++        };
++
++	fragment@1 {
++                target = <&audio_pins>;
++                __overlay__ {
++                        brcm,pins = < 12 13 >;
++                        brcm,function = < 4 >; /* alt0 alt0 */
++                };
++        };
++
++	fragment@2 {
++		target = <&audio_pins>;
++		__dormant__ {
++                        brcm,pins = < 18 19 >;
++                        brcm,function = < 2 >; /* alt5 alt5 */
++		};
++	};
++
++	__overrides__ {
++		swap_lr = <&frag0>, "swap_lr?";
++		enable_jack = <&frag0>, "enable_jack?";
++		pins_12_13 = <0>,"+1-2";
++		pins_18_19 = <0>,"-1+2";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/balena-fin-overlay.dts b/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
+new file mode 100644
+index 000000000000..e7ead7cdf5f5
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
+@@ -0,0 +1,125 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&mmcnr>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&sdio_pins>;
++			bus-width = <4>;
++			brcm,overclock-50 = <35>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			sdio_pins: sdio_pins {
++				brcm,pins = <34 35 36 37 38 39>;
++				brcm,function = <7>; /* ALT3 = SD1 */
++				brcm,pull = <0 2 2 2 2 2>;
++			};
++
++			power_ctrl_pins: power_ctrl_pins {
++				brcm,pins = <40>;
++				brcm,function = <1>; // out
++			};
++		};
++	};
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			// We should switch to mmc-pwrseq-sd8787 after making it
++			// compatible with sd8887
++			// Currently that module requires two GPIOs to function since it
++			// targets a slightly different chip
++			power_ctrl: power_ctrl {
++				compatible = "gpio-poweroff";
++				gpios = <&gpio 40 1>;
++				force;
++				pinctrl-names = "default";
++				pinctrl-0 = <&power_ctrl_pins>;
++			};
++
++			i2c_soft: i2c@0 {
++				compatible = "i2c-gpio";
++				gpios = <&gpio 43 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* sda */
++				         &gpio 42 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* scl */>;
++				i2c-gpio,delay-us = <5>;
++				i2c-gpio,scl-open-drain;
++				i2c-gpio,sda-open-drain;
++				#address-cells = <1>;
++				#size-cells = <0>;
++			};
++
++			sd8xxx-wlan {
++				drvdbg = <0x6>;
++				drv_mode = <0x1>;
++				cfg80211_wext = <0xf>;
++				sta_name = "wlan";
++				wfd_name = "p2p";
++				cal_data_cfg = "none";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c_soft>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			gpio_expander: gpio_expander@20 {
++				compatible = "nxp,pca9554";
++				gpio-controller;
++				#gpio-cells = <2>;
++				reg = <0x20>;
++				status = "okay";
++			};
++
++			// rtc clock
++			ds1307: ds1307@68 {
++				compatible = "dallas,ds1307";
++				reg = <0x68>;
++				status = "okay";
++			};
++
++			// RGB LEDs (>= v1.1.0)
++			pca9633: pca9633@62 {
++				compatible = "nxp,pca9633";
++				reg = <0x62>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++
++				red@0 {
++					label = "red";
++					reg = <0>;
++					linux,default-trigger = "none";
++				};
++				green@1 {
++					label = "green";
++					reg = <1>;
++					linux,default-trigger = "none";
++				};
++				blue@2 {
++					label = "blue";
++					reg = <2>;
++					linux,default-trigger = "none";
++				};
++				unused@3 {
++					label = "unused";
++					reg = <3>;
++					linux,default-trigger = "none";
++				};
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/cma-overlay.dts b/arch/arm/boot/dts/overlays/cma-overlay.dts
+new file mode 100644
+index 000000000000..1d87c599f909
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/cma-overlay.dts
+@@ -0,0 +1,36 @@
++/*
++ * cma.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&cma>;
++		frag0: __overlay__ {
++			/*
++			 * The default size when using this overlay is 256 MB
++			 * and should be kept as is for backwards
++			 * compatibility.
++			 */
++			size = <0x10000000>;
++		};
++	};
++
++	__overrides__ {
++		cma-512 = <&frag0>,"size:0=",<0x20000000>;
++		cma-448 = <&frag0>,"size:0=",<0x1c000000>;
++		cma-384 = <&frag0>,"size:0=",<0x18000000>;
++		cma-320 = <&frag0>,"size:0=",<0x14000000>;
++		cma-256 = <&frag0>,"size:0=",<0x10000000>;
++		cma-192 = <&frag0>,"size:0=",<0xC000000>;
++		cma-128 = <&frag0>,"size:0=",<0x8000000>;
++		cma-96  = <&frag0>,"size:0=",<0x6000000>;
++		cma-64  = <&frag0>,"size:0=",<0x4000000>;
++		cma-size = <&frag0>,"size:0"; /* in bytes, 4MB aligned */
++		cma-default = <0>,"-0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dht11-overlay.dts b/arch/arm/boot/dts/overlays/dht11-overlay.dts
+new file mode 100644
+index 000000000000..6feeeb402493
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dht11-overlay.dts
+@@ -0,0 +1,41 @@
++/*
++ * Overlay for the DHT11/21/22 humidity/temperature sensor modules.
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++
++			dht11: dht11@0 {
++				compatible = "dht11";
++				pinctrl-names = "default";
++				pinctrl-0 = <&dht11_pins>;
++				gpios = <&gpio 4 0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			dht11_pins: dht11_pins@0 {
++				brcm,pins = <4>;
++				brcm,function = <0>; // in
++				brcm,pull = <0>; // off
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin = <&dht11_pins>,"brcm,pins:0",
++			<&dht11_pins>, "reg:0",
++			<&dht11>,"gpios:4",
++			<&dht11>,"reg:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
+new file mode 100644
+index 000000000000..d863e5c167cc
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for Dion Audio LOCO DAC-AMP
++
++/*
++ * PCM5242 DAC (in hardware mode) and TPA3118 AMP.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			pcm5102a-codec {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5102a";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "dionaudio,loco-pcm5242-tpa3118";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts b/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts
+new file mode 100644
+index 000000000000..dfb8922a654b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dionaudio-loco-v2-overlay.dts
+@@ -0,0 +1,49 @@
++/*
++ * Definitions for Dion Audio LOCO-V2 DAC-AMP
++ *  eg. dtoverlay=dionaudio-loco-v2
++ *
++ * PCM5242 DAC (in software mode) and TPA3255 AMP.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sound>;
++		frag0: __overlay__ {
++			compatible = "dionaudio,dionaudio-loco-v2";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&frag0>,"dionaudio,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/disable-bt-overlay.dts b/arch/arm/boot/dts/overlays/disable-bt-overlay.dts
+new file mode 100644
+index 000000000000..d5a66e5d76a9
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/disable-bt-overlay.dts
+@@ -0,0 +1,64 @@
++/dts-v1/;
++/plugin/;
++
++/* Disable Bluetooth and restore UART0/ttyAMA0 over GPIOs 14 & 15.
++   To disable the systemd service that initialises the modem so it doesn't use
++   the UART:
++
++       sudo systemctl disable hciuart
++*/
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&uart1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&uart0>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart0_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&bt>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&uart0_pins>;
++		__overlay__ {
++			brcm,pins;
++			brcm,function;
++			brcm,pull;
++		};
++	};
++
++	fragment@4 {
++		target = <&bt_pins>;
++		__overlay__ {
++			brcm,pins;
++			brcm,function;
++			brcm,pull;
++		};
++	};
++
++	fragment@5 {
++		target-path = "/aliases";
++		__overlay__ {
++			serial0 = "/soc/serial@7e201000";
++			serial1 = "/soc/serial@7e215040";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/disable-wifi-overlay.dts b/arch/arm/boot/dts/overlays/disable-wifi-overlay.dts
+new file mode 100644
+index 000000000000..75e046463900
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/disable-wifi-overlay.dts
+@@ -0,0 +1,20 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&mmc>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&mmcnr>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dpi18-overlay.dts b/arch/arm/boot/dts/overlays/dpi18-overlay.dts
+new file mode 100644
+index 000000000000..4abe5be744db
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dpi18-overlay.dts
+@@ -0,0 +1,39 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	// There is no DPI driver module, but we need a platform device
++	// node (that doesn't already use pinctrl) to hang the pinctrl
++	// reference on - leds will do
++
++	fragment@0 {
++		target = <&fb>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi18_pins>;
++		};
++	};
++
++	fragment@1 {
++		target = <&vc4>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi18_pins>;
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			dpi18_pins: dpi18_pins {
++				brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
++					     12 13 14 15 16 17 18 19 20
++					     21>;
++				brcm,function = <6>; /* alt2 */
++				brcm,pull = <0>; /* no pull */
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dpi24-overlay.dts b/arch/arm/boot/dts/overlays/dpi24-overlay.dts
+new file mode 100644
+index 000000000000..44335cc81277
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dpi24-overlay.dts
+@@ -0,0 +1,39 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	// There is no DPI driver module, but we need a platform device
++	// node (that doesn't already use pinctrl) to hang the pinctrl
++	// reference on - leds will do
++
++	fragment@0 {
++		target = <&fb>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi24_pins>;
++		};
++	};
++
++	fragment@1 {
++		target = <&vc4>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi24_pins>;
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			dpi24_pins: dpi24_pins {
++				brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
++					     12 13 14 15 16 17 18 19 20
++					     21 22 23 24 25 26 27>;
++				brcm,function = <6>; /* alt2 */
++				brcm,pull = <0>; /* no pull */
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/draws-overlay.dts b/arch/arm/boot/dts/overlays/draws-overlay.dts
+new file mode 100644
+index 000000000000..d18187d7f343
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/draws-overlay.dts
+@@ -0,0 +1,208 @@
++#include <dt-bindings/clock/bcm2835.h>
++/*
++ * Device tree overlay for the DRAWS Hardware
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    fragment@0 {
++        target = <&i2s>;
++        __overlay__ {
++            status = "okay";
++        };
++    };
++
++    fragment@1 {
++        target-path = "/";
++        __overlay__ {
++            regulators {
++                compatible = "simple-bus";
++                #address-cells = <1>;
++                #size-cells = <0>;
++
++                udrc0_ldoin: udrc0_ldoin {
++                    compatible = "regulator-fixed";
++                    regulator-name = "ldoin";
++                    regulator-min-microvolt = <3300000>;
++                    regulator-max-microvolt = <3300000>;
++                    regulator-always-on;
++                };
++
++                sc16is752_clk: sc16is752_draws_clk {
++                    compatible = "fixed-clock";
++                    #clock-cells = <0>;
++                    clock-frequency = <1843200>;
++                };
++            };
++
++            pps: pps {
++                compatible = "pps-gpio";
++                pinctrl-names = "default";
++                pinctrl-0 = <&pps_pins>;
++                gpios = <&gpio 7 0>;
++                status = "okay";
++            };
++
++            iio-hwmon {
++                compatible = "iio-hwmon";
++                status = "okay";
++                io-channels = <&tla2024 4>, <&tla2024 5>, <&tla2024 6>,
++                              <&tla2024 7>;
++            };
++        };
++    };
++
++    fragment@2 {
++        target = <&i2c_arm>;
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            status = "okay";
++
++            tlv320aic32x4: tlv320aic32x4@18 {
++                compatible = "ti,tlv320aic32x4";
++                reg = <0x18>;
++                #sound-dai-cells = <0>;
++                status = "okay";
++
++                clocks = <&clocks BCM2835_CLOCK_GP0>;
++                clock-names = "mclk";
++                assigned-clocks = <&clocks BCM2835_CLOCK_GP0>;
++                assigned-clock-rates = <25000000>;
++
++                pinctrl-names = "default";
++                pinctrl-0 = <&gpclk0_pin &aic3204_reset>;
++
++                reset-gpios = <&gpio 13 0>;
++
++                iov-supply = <&udrc0_ldoin>;
++                ldoin-supply = <&udrc0_ldoin>;
++            };
++
++            sc16is752: sc16is752@50 {
++                compatible = "nxp,sc16is752";
++                reg = <0x50>;
++                clocks = <&sc16is752_clk>;
++                interrupt-parent = <&gpio>;
++                interrupts = <17 2>; /* IRQ_TYPE_EDGE_FALLING */
++
++                pinctrl-names = "default";
++                pinctrl-0 = <&sc16is752_irq>;
++            };
++
++            tla2024: tla2024@48 {
++                compatible = "ti,ads1015";
++                reg = <0x48>;
++                #address-cells = <1>;
++                #size-cells = <0>;
++                #io-channel-cells = <1>;
++
++                adc_ch4: channel@4 {
++                    reg = <4>;
++                    ti,gain = <1>;
++                    ti,datarate = <4>;
++                };
++
++                adc_ch5: channel@5 {
++                    reg = <5>;
++                    ti,gain = <1>;
++                    ti,datarate = <4>;
++                };
++
++                adc_ch6: channel@6 {
++                    reg = <6>;
++                    ti,gain = <2>;
++                    ti,datarate = <4>;
++                };
++
++                adc_ch7: channel@7 {
++                    reg = <7>;
++                    ti,gain = <2>;
++                    ti,datarate = <4>;
++                };
++            };
++        };
++    };
++
++    fragment@3 {
++        target = <&sound>;
++        snd: __overlay__ {
++            compatible = "simple-audio-card";
++            i2s-controller = <&i2s>;
++            status = "okay";
++
++            simple-audio-card,name = "draws";
++            simple-audio-card,format = "i2s";
++
++            simple-audio-card,bitclock-master = <&dailink0_master>;
++            simple-audio-card,frame-master = <&dailink0_master>;
++
++            simple-audio-card,widgets =
++                "Line", "Line In",
++                "Line", "Line Out";
++
++            simple-audio-card,routing =
++                "IN1_R", "Line In",
++                "IN1_L", "Line In",
++                "CM_L", "Line In",
++                "CM_R", "Line In",
++                "Line Out", "LOR",
++                "Line Out", "LOL";
++
++            dailink0_master: simple-audio-card,cpu {
++                sound-dai = <&i2s>;
++            };
++
++            simple-audio-card,codec {
++                sound-dai = <&tlv320aic32x4>;
++            };
++        };
++    };
++
++    fragment@4 {
++        target = <&gpio>;
++        __overlay__ {
++            gpclk0_pin: gpclk0_pin {
++                brcm,pins = <4>;
++                brcm,function = <4>;
++            };
++
++            aic3204_reset: aic3204_reset {
++                brcm,pins = <13>;
++                brcm,function = <1>;
++                brcm,pull = <1>;
++            };
++
++            aic3204_gpio: aic3204_gpio {
++                brcm,pins = <26>;
++            };
++
++            sc16is752_irq: sc16is752_irq {
++                brcm,pins = <17>;
++                brcm,function = <0>;
++                brcm,pull = <2>;
++            };
++
++            pps_pins: pps_pins {
++                brcm,pins = <7>;
++                brcm,function = <0>;
++                brcm,pull = <0>;
++            };
++        };
++    };
++
++    __overrides__ {
++        draws_adc_ch4_gain = <&adc_ch4>,"ti,gain:0";
++        draws_adc_ch4_datarate = <&adc_ch4>,"ti,datarate:0";
++        draws_adc_ch5_gain = <&adc_ch5>,"ti,gain:0";
++        draws_adc_ch5_datarate = <&adc_ch5>,"ti,datarate:0";
++        draws_adc_ch6_gain = <&adc_ch6>,"ti,gain:0";
++        draws_adc_ch6_datarate = <&adc_ch6>,"ti,datarate:0";
++        draws_adc_ch7_gain = <&adc_ch7>,"ti,gain:0";
++        draws_adc_ch7_datarate = <&adc_ch7>,"ti,datarate:0";
++        alsaname = <&snd>, "simple-audio-card,name";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts b/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts
+new file mode 100644
+index 000000000000..78c5e9f85048
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dwc-otg-overlay.dts
+@@ -0,0 +1,14 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&usb>;
++		__overlay__ {
++			compatible = "brcm,bcm2708-usb";
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/dwc2-overlay.dts b/arch/arm/boot/dts/overlays/dwc2-overlay.dts
+new file mode 100644
+index 000000000000..0d83e344ad97
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dwc2-overlay.dts
+@@ -0,0 +1,26 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&usb>;
++		#address-cells = <1>;
++		#size-cells = <1>;
++		dwc2_usb: __overlay__ {
++			compatible = "brcm,bcm2835-usb";
++			dr_mode = "otg";
++			g-np-tx-fifo-size = <32>;
++			g-rx-fifo-size = <558>;
++			g-tx-fifo-size = <512 512 512 512 512 256 256>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		dr_mode = <&dwc2_usb>, "dr_mode";
++		g-np-tx-fifo-size = <&dwc2_usb>,"g-np-tx-fifo-size:0";
++		g-rx-fifo-size = <&dwc2_usb>,"g-rx-fifo-size:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/enc28j60-overlay.dts b/arch/arm/boot/dts/overlays/enc28j60-overlay.dts
+new file mode 100644
+index 000000000000..7af5c2e607ea
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/enc28j60-overlay.dts
+@@ -0,0 +1,53 @@
++// Overlay for the Microchip ENC28J60 Ethernet Controller
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			eth1: enc28j60@0{
++				compatible = "microchip,enc28j60";
++				reg = <0>; /* CE0 */
++				pinctrl-names = "default";
++				pinctrl-0 = <&eth1_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 0x2>; /* falling edge */
++				spi-max-frequency = <12000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			eth1_pins: eth1_pins {
++				brcm,pins = <25>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <0>; /* none */
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&eth1>, "interrupts:0",
++		          <&eth1_pins>, "brcm,pins:0";
++		speed   = <&eth1>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts
+new file mode 100644
+index 000000000000..17cb5b8fa485
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/enc28j60-spi2-overlay.dts
+@@ -0,0 +1,47 @@
++// Overlay for the Microchip ENC28J60 Ethernet Controller - SPI2 Compute Module
++// Interrupt pin: 39
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi2>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			eth1: enc28j60@0{
++				compatible = "microchip,enc28j60";
++				reg = <0>; /* CE0 */
++				pinctrl-names = "default";
++				pinctrl-0 = <&eth1_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <39 0x2>; /* falling edge */
++				spi-max-frequency = <12000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			eth1_pins: eth1_pins {
++				brcm,pins = <39>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <0>; /* none */
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&eth1>, "interrupts:0",
++		          <&eth1_pins>, "brcm,pins:0";
++		speed   = <&eth1>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/exc3000-overlay.dts b/arch/arm/boot/dts/overlays/exc3000-overlay.dts
+new file mode 100644
+index 000000000000..6f087fb20661
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/exc3000-overlay.dts
+@@ -0,0 +1,48 @@
++// Device tree overlay for I2C connected EETI EXC3000 multiple touch controller
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			exc3000_pins: exc3000_pins {
++				brcm,pins = <4>; // interrupt
++				brcm,function = <0>; // in
++				brcm,pull = <2>; // pull-up
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			exc3000: exc3000@2a {
++				compatible = "eeti,exc3000";
++				reg = <0x2a>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&exc3000_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <4 8>; // active low level-sensitive
++				touchscreen-size-x = <4096>;
++				touchscreen-size-y = <4096>;
++			};
++		};
++	};
++
++	__overrides__ {
++		interrupt = <&exc3000_pins>,"brcm,pins:0",
++			<&exc3000>,"interrupts:0";
++		sizex = <&exc3000>,"touchscreen-size-x:0";
++		sizey = <&exc3000>,"touchscreen-size-y:0";
++		invx = <&exc3000>,"touchscreen-inverted-x?";
++		invy = <&exc3000>,"touchscreen-inverted-y?";
++		swapxy = <&exc3000>,"touchscreen-swapped-x-y?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+new file mode 100644
+index 000000000000..743f14ae5768
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+@@ -0,0 +1,70 @@
++// Definitions for Fe-Pi Audio
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			sgtl5000_mclk: sgtl5000_mclk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <12288000>;
++				clock-output-names = "sgtl5000-mclk";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&soc>;
++		__overlay__ {
++			reg_1v8: reg_1v8@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "1V8";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++				regulator-always-on;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sgtl5000@0a {
++				#sound-dai-cells = <0>;
++				compatible = "fsl,sgtl5000";
++				reg = <0x0a>;
++				clocks = <&sgtl5000_mclk>;
++				micbias-resistor-k-ohms = <2>;
++				micbias-voltage-m-volts = <3000>;
++				VDDA-supply = <&vdd_3v3_reg>;
++				VDDIO-supply = <&vdd_3v3_reg>;
++				VDDD-supply = <&reg_1v8>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "fe-pi,fe-pi-audio";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts b/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
+new file mode 100644
+index 000000000000..9e06e388e4d3
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
+@@ -0,0 +1,104 @@
++// Demo overlay for the gpio-fsm driver
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio-fsm.h>
++
++#define BUTTON1 GF_IP(0)
++#define BUTTON2 GF_SW(0)
++#define RED   GF_OP(0) // GPIO7
++#define AMBER GF_OP(1) // GPIO8
++#define GREEN GF_OP(2) // GPIO25
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			fsm_demo: fsm-demo {
++				compatible = "rpi,gpio-fsm";
++
++				debug = <0>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				num-soft-gpios = <1>;
++				gpio-line-names = "button2";
++				input-gpios  = <&gpio 6 1>;  // BUTTON1 (active-low)
++				output-gpios = <&gpio 7 0>,  // RED
++					       <&gpio 8 0>,  // AMBER
++					       <&gpio 25 0>; // GREEN
++				shutdown-timeout-ms = <2000>;
++
++				start {
++					start_state;
++					set = <RED 1>, <AMBER 0>, <GREEN 0>;
++					start2 = <GF_DELAY 250>;
++				};
++
++				start2 {
++					set = <RED 0>, <AMBER 1>;
++					go = <GF_DELAY 250>;
++				};
++
++				go {
++					set = <RED 0>, <AMBER 0>, <GREEN 1>;
++					ready_wait = <BUTTON1 0>;
++					shutdown1 = <GF_SHUTDOWN 0>;
++				};
++
++				ready_wait {
++					// Clear the soft GPIO
++					set = <BUTTON2 0>;
++					ready = <GF_DELAY 1000>;
++					shutdown1 = <GF_SHUTDOWN 0>;
++				};
++
++				ready {
++					stopping = <BUTTON1 1>, <BUTTON2 1>;
++					shutdown1 = <GF_SHUTDOWN 0>;
++				};
++
++				stopping {
++					set = <GREEN 0>, <AMBER 1>;
++					stopped = <GF_DELAY 1000>;
++				};
++
++				stopped {
++					set = <AMBER 0>, <RED 1>;
++					get_set = <GF_DELAY 3000>;
++					shutdown1 = <GF_SHUTDOWN 0>;
++				};
++
++				get_set {
++					set = <AMBER 1>;
++					go = <GF_DELAY 1000>;
++				};
++
++				shutdown1 {
++					set = <RED 0>, <AMBER 0>, <GREEN 1>;
++					shutdown2 = <GF_SHUTDOWN 250>;
++				};
++
++				shutdown2 {
++					set = <AMBER 1>, <GREEN 0>;
++					shutdown3 = <GF_SHUTDOWN 250>;
++				};
++
++				shutdown3 {
++					set = <RED 1>, <AMBER 0>;
++					shutdown4 = <GF_SHUTDOWN 250>;
++				};
++
++				shutdown4 {
++					shutdown_state;
++					set = <RED 0>;
++				};
++			};
++	       };
++        };
++
++	__overrides__ {
++		fsm_debug = <&fsm_demo>,"debug:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+new file mode 100644
+index 000000000000..afc9f034b5fc
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -0,0 +1,119 @@
++// Overlay for the PCM5122-based Ghost amplifier using gpio-fsm
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio-fsm.h>
++
++#define ENABLE GF_SW(0)
++#define FAULT  GF_IP(0) // GPIO5
++#define RELAY1 GF_OP(0) // GPIO22
++#define RELAY2 GF_OP(1) // GPIO23
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4c>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		iqaudio_dac: __overlay__ {
++			compatible = "iqaudio,iqaudio-dac";
++			i2s-controller = <&i2s>;
++			mute-gpios = <&amp 0 0>;
++			iqaudio-dac,auto-mute-amp;
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			amp: ghost-amp {
++				compatible = "rpi,gpio-fsm";
++
++				debug = <0>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				num-soft-gpios = <1>;
++				gpio-line-names = "enable";
++				input-gpios  = <&gpio 5 1>;  // FAULT (active low)
++				output-gpios = <&gpio 22 0>, // RELAY1
++					       <&gpio 23 0>; // RELAY2
++				shutdown-timeout-ms = <1000>;
++
++				amp_off {
++					start_state;
++					shutdown_state;
++
++					set = <RELAY2 0>,
++					      <RELAY1 0>;
++					amp_on_1 = <ENABLE 1>;
++					fault = <FAULT 1>;
++				};
++
++				amp_on_1 {
++					set = <RELAY1 1>;
++					amp_on = <GF_DELAY 1500>;
++					amp_off = <ENABLE 0>;
++					fault = <FAULT 1>;
++				};
++
++				amp_on {
++					set = <RELAY2 1>;
++					amp_off_wait = <ENABLE 0>;
++					fault = <FAULT 1>;
++				};
++
++				amp_off_wait {
++					amp_off_1 = <GF_DELAY (30*60*1000)>,
++						    <GF_SHUTDOWN 0>;
++					amp_on = <ENABLE 1>;
++					fault = <FAULT 1>;
++				};
++
++				amp_off_1 {
++					set = <RELAY2 0>;
++					amp_on = <ENABLE 1>;
++					amp_off = <GF_DELAY 100>;
++					fault = <FAULT 1>;
++				};
++
++				// Keep this a distinct state to prevent
++				// changes and for the diagnostic output
++				fault {
++					set = <RELAY2 0>,
++					      <RELAY1 0>;
++					shutdown_state;
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		fsm_debug = <&amp>,"debug:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/goodix-overlay.dts b/arch/arm/boot/dts/overlays/goodix-overlay.dts
+new file mode 100644
+index 000000000000..a11d65f81c5e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/goodix-overlay.dts
+@@ -0,0 +1,46 @@
++// Device tree overlay for I2C connected Goodix gt9271 multiple touch controller
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			goodix_pins: goodix_pins {
++				brcm,pins = <4 17>; // interrupt and reset
++				brcm,function = <0 0>; // in
++				brcm,pull = <2 2>; // pull-up
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			gt9271: gt9271@14 {
++				compatible = "goodix,gt9271";
++				reg = <0x14>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&goodix_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <4 2>; // high-to-low edge triggered
++				irq-gpios = <&gpio 4 0>; // Pin7 on GPIO header
++				reset-gpios = <&gpio 17 1>; // Pin11 on GPIO header
++			};
++		};
++	};
++
++	__overrides__ {
++		interrupt = <&goodix_pins>,"brcm,pins:0",
++			<&gt9271>,"interrupts:0",
++			<&gt9271>,"irq-gpios:4";
++		reset = <&goodix_pins>,"brcm,pins:4",
++			<&gt9271>,"reset-gpios:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts b/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts
+new file mode 100644
+index 000000000000..e443be1f9a0e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/googlevoicehat-soundcard-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for Google voiceHAT v1 soundcard overlay
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			googlevoicehat_pins: googlevoicehat_pins {
++				brcm,pins = <16>;
++				brcm,function = <1>; /* out */
++				brcm,pull = <0>; /* up */
++			};
++		};
++	};
++
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			voicehat-codec {
++				#sound-dai-cells = <0>;
++				compatible = "google,voicehat";
++				pinctrl-names = "default";
++				pinctrl-0 = <&googlevoicehat_pins>;
++				sdmode-gpios= <&gpio 16 0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "googlevoicehat,googlevoicehat-soundcard";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts b/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts
+new file mode 100644
+index 000000000000..77a7bbb41e3b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts
+@@ -0,0 +1,79 @@
++/*
++ * Overlay for the Raspberry Pi GPIO Fan @ BCM GPIO12.
++ * References: 
++ *	- https://www.raspberrypi.org/forums/viewtopic.php?f=107&p=1367135#p1365084
++ *
++ * Optional parameters:
++ *	- "gpiopin"	- BCM number of the pin driving the fan, default 12 (GPIO12);
++ * 	- "temp"	- CPU temperature at which fan is started in millicelsius, default 55000;
++ *
++ * Requires:
++ *	- kernel configurations: CONFIG_SENSORS_GPIO_FAN=m;
++ *	- kernel rebuild;
++ *	- N-MOSFET connected to gpiopin, 2N7002-[https://en.wikipedia.org/wiki/2N7000];
++ *	- DC Fan connected to N-MOSFET Drain terminal, a 12V fan is working fine and quite silently;
++ *	  [https://www.tme.eu/en/details/ee40101s1-999-a/dc12v-fans/sunon/ee40101s1-1000u-999/]
++ *
++ *                   ┌─────────────────────┐
++ *                   │Fan negative terminal│
++ *                   └┬────────────────────┘
++ *                    │D
++ *             G   │──┘
++ * [GPIO12]──────┤ │<─┐  2N7002
++ *                 │──┤
++ *                    │S
++ *                   ─┴─
++ *                   GND
++ *
++ * Build:
++ * 	- `sudo dtc -W no-unit_address_vs_reg -@ -I dts -O dtb -o /boot/overlays/gpio-fan.dtbo gpio-fan-overlay.dts`
++ * Activate:
++ *	- sudo nano /boot/config.txt add "dtoverlay=gpio-fan" or "dtoverlay=gpio-fan,gpiopin=12,temp=45000"
++ *	 or
++ *	- sudo sh -c 'printf "\n# Enable PI GPIO-Fan Default\ndtoverlay=gpio-fan\n" >> /boot/config.txt'
++ *	- sudo sh -c 'printf "\n# Enable PI GPIO-Fan Custom\ndtoverlay=gpio-fan,gpiopin=12,temp=45000\n" >> /boot/config.txt'
++ *
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			fan0: gpio-fan@0 {
++				compatible = "gpio-fan";
++				gpios = <&gpio 12 0>;
++				gpio-fan,speed-map = <0    0>,
++									 <5000 1>;
++				#cooling-cells = <2>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&cpu_thermal>;
++		polling-delay = <2000>;	/* milliseconds */
++		__overlay__ {
++			trips {
++				cpu_hot: trip-point@0 {
++					temperature = <55000>;	/* (millicelsius) Fan started at 55°C */
++					hysteresis = <10000>;	/* (millicelsius) Fan stopped at 45°C */
++					type = "active";
++				};
++			};
++			cooling-maps {
++				map0 {
++					trip = <&cpu_hot>;
++					cooling-device = <&fan0 1 1>;
++				};
++			};
++		};
++	};
++	__overrides__ {
++		gpiopin = <&fan0>,"gpios:4", <&fan0>,"brcm,pins:0";
++		temp = <&cpu_hot>,"temperature:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts b/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts
+new file mode 100644
+index 000000000000..162b6ce07dc9
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-ir-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for ir-gpio module
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target-path = "/";
++                __overlay__ {
++                        gpio_ir: ir-receiver@12 {
++                                compatible = "gpio-ir-receiver";
++                                pinctrl-names = "default";
++                                pinctrl-0 = <&gpio_ir_pins>;
++
++                                // pin number, high or low
++                                gpios = <&gpio 18 1>;
++
++                                // parameter for keymap name
++                                linux,rc-map-name = "rc-rc6-mce";
++
++                                status = "okay";
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&gpio>;
++                __overlay__ {
++                        gpio_ir_pins: gpio_ir_pins@12 {
++                                brcm,pins = <18>;                       // pin 18
++                                brcm,function = <0>;                    // in
++                                brcm,pull = <2>;                        // up
++                        };
++                };
++        };
++
++        __overrides__ {
++                // parameters
++                gpio_pin =      <&gpio_ir>,"gpios:4",           // pin number
++                                <&gpio_ir>,"reg:0",
++                                <&gpio_ir_pins>,"brcm,pins:0",
++                                <&gpio_ir_pins>,"reg:0";
++                gpio_pull = <&gpio_ir_pins>,"brcm,pull:0";              // pull-up/down state
++                invert = <&gpio_ir>,"gpios:8";                          // 0 = active high input
++
++                rc-map-name = <&gpio_ir>,"linux,rc-map-name";           // default rc map
++        };
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-ir-tx-overlay.dts b/arch/arm/boot/dts/overlays/gpio-ir-tx-overlay.dts
+new file mode 100644
+index 000000000000..3625431b7560
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-ir-tx-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			gpio_ir_tx_pins: gpio_ir_tx_pins@12 {
++				brcm,pins = <18>;
++				brcm,function = <1>;	// out
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			gpio_ir_tx: gpio-ir-transmitter@12 {
++				compatible = "gpio-ir-tx";
++				pinctrl-names = "default";
++				pinctrl-0 = <&gpio_ir_tx_pins>;
++				gpios = <&gpio 18 0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio_pin = <&gpio_ir_tx>, "gpios:4",           	// pin number
++			   <&gpio_ir_tx>, "reg:0",
++			   <&gpio_ir_tx_pins>, "brcm,pins:0",
++			   <&gpio_ir_tx_pins>, "reg:0";
++		invert = <&gpio_ir_tx>, "gpios:8";		// 1 = active low
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-key-overlay.dts b/arch/arm/boot/dts/overlays/gpio-key-overlay.dts
+new file mode 100644
+index 000000000000..2e7253d1d0ab
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-key-overlay.dts
+@@ -0,0 +1,48 @@
++// Definitions for gpio-key module
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			pin_state: button_pins@0 {
++				brcm,pins = <3>; // gpio number
++				brcm,function = <0>; // 0 = input, 1 = output
++				brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
++			};
++		};
++	};
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			button: button@0 {
++				compatible = "gpio-keys";
++				pinctrl-names = "default";
++				pinctrl-0 = <&pin_state>;
++				status = "okay";
++
++				key: key {
++					linux,code = <116>;
++					gpios = <&gpio 3 1>;
++					label = "KEY_POWER";
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio =       <&key>,"gpios:4",
++		             <&button>,"reg:0",
++		             <&pin_state>,"brcm,pins:0",
++		             <&pin_state>,"reg:0";
++		label =      <&key>,"label";
++		keycode =    <&key>,"linux,code:0";
++		gpio_pull =  <&pin_state>,"brcm,pull:0";
++		active_low = <&key>,"gpios:8";
++	};
++
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts b/arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts
+new file mode 100755
+index 000000000000..96cbe80820b7
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-no-bank0-irq-overlay.dts
+@@ -0,0 +1,14 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			    interrupts = <255 255>, <2 18>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts b/arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts
+new file mode 100644
+index 000000000000..55f9bff3a8f6
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-no-irq-overlay.dts
+@@ -0,0 +1,14 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			    interrupts;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
+new file mode 100644
+index 000000000000..416aa2bc797a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
+@@ -0,0 +1,37 @@
++// Definitions for gpio-poweroff module
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			power_ctrl: power_ctrl {
++				compatible = "gpio-poweroff";
++				gpios = <&gpio 26 0>;
++				force;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			power_ctrl_pins: power_ctrl_pins {
++				brcm,pins = <26>;
++				brcm,function = <1>; // out
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin =       <&power_ctrl>,"gpios:4",
++				<&power_ctrl_pins>,"brcm,pins:0";
++		active_low =    <&power_ctrl>,"gpios:8";
++		input =         <&power_ctrl>,"input?";
++		export =        <&power_ctrl>,"export?";
++		timeout_ms =    <&power_ctrl>,"timeout-ms:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts b/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+new file mode 100644
+index 000000000000..0a27595143ec
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+@@ -0,0 +1,84 @@
++// Definitions for gpio-poweroff module
++/dts-v1/;
++/plugin/;
++
++// This overlay sets up an input device that generates KEY_POWER events
++// when a given GPIO pin changes. It defaults to using GPIO3, which can
++// also be used to wake up (start) the Rpi again after shutdown.
++// Raspberry Pi 1 Model B rev 1 can be wake up only by GPIO1 pin, so for
++// these boards change default GPIO pin to 1 via gpio_pin parameter. Since
++// wakeup is active-low, this defaults to active-low with a pullup
++// enabled, but all of this can be changed using overlay parameters (but
++// note that GPIO3 has an external pullup on at least some boards).
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			// Define a pinctrl state, that sets up the gpio
++			// as an input with a pullup enabled. This does
++			// not take effect by itself, only when referenced
++			// by a "pinctrl client", as is done below. See:
++			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
++			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
++			pin_state: shutdown_button_pins {
++				brcm,pins = <3>; // gpio number
++				brcm,function = <0>; // 0 = input, 1 = output
++				brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
++			};
++		};
++	};
++	fragment@1 {
++		// Add a new device to the /soc devicetree node
++		target-path = "/soc";
++		__overlay__ {
++			shutdown_button {
++				// Let the gpio-keys driver handle this device. See:
++				// https://www.kernel.org/doc/Documentation/devicetree/bindings/input/gpio-keys.txt
++				compatible = "gpio-keys";
++
++				// Declare a single pinctrl state (referencing the one declared above) and name it
++				// default, so it is activated automatically.
++				pinctrl-names = "default";
++				pinctrl-0 = <&pin_state>;
++
++				// Enable this device
++				status = "okay";
++
++				// Define a single key, called "shutdown" that monitors the gpio and sends KEY_POWER
++				// (keycode 116, see
++				// https://github.com/torvalds/linux/blob/v4.12/include/uapi/linux/input-event-codes.h#L190)
++				button: shutdown {
++					label = "shutdown";
++					linux,code = <116>; // KEY_POWER
++					gpios = <&gpio 3 1>;
++					debounce-interval = <100>; // ms
++				};
++			};
++		};
++	};
++
++	// This defines parameters that can be specified when loading
++	// the overlay. Each foo = line specifies one parameter, named
++	// foo. The rest of the specification gives properties where the
++	// parameter value is inserted into (changing the values above
++	// or adding new ones).
++	__overrides__ {
++		// Allow overriding the GPIO number.
++		gpio_pin = <&button>,"gpios:4",
++		           <&pin_state>,"brcm,pins:0";
++
++		// Allow changing the internal pullup/down state. 0 = none, 1 = pulldown, 2 = pullup
++		// Note that GPIO3 and GPIO2 are the I2c pins and have an external pullup (at least
++		// on some boards). Same applies for GPIO1 on Raspberry Pi 1 Model B rev 1.
++		gpio_pull = <&pin_state>,"brcm,pull:0";
++
++		// Allow setting the active_low flag. 0 = active high, 1 = active low
++		active_low = <&button>,"gpios:8";
++		debounce = <&button>,"debounce-interval:0";
++	};
++
++};
+diff --git a/arch/arm/boot/dts/overlays/hd44780-lcd-overlay.dts b/arch/arm/boot/dts/overlays/hd44780-lcd-overlay.dts
+new file mode 100644
+index 000000000000..ee726669ff51
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hd44780-lcd-overlay.dts
+@@ -0,0 +1,46 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++        target-path = "/";
++        __overlay__ {
++            lcd_screen: auxdisplay {
++                compatible = "hit,hd44780";
++
++                data-gpios = <&gpio 6 0>,
++                             <&gpio 13 0>,
++                             <&gpio 19 0>,
++                             <&gpio 26 0>;
++                enable-gpios = <&gpio 21 0>;
++                rs-gpios = <&gpio 20 0>;
++
++                display-height-chars = <2>;
++                display-width-chars = <16>;
++            };
++
++        };
++    };
++
++    fragment@1 {
++       target = <&lcd_screen>;
++        __dormant__ {
++            backlight-gpios = <&gpio 12 0>;
++        };
++    };
++
++    __overrides__ {
++        pin_d4 = <&lcd_screen>,"data-gpios:4";
++        pin_d5 = <&lcd_screen>,"data-gpios:16";
++        pin_d6 = <&lcd_screen>,"data-gpios:28";
++        pin_d7 = <&lcd_screen>,"data-gpios:40";
++        pin_en = <&lcd_screen>,"enable-gpios:4";
++        pin_rs = <&lcd_screen>,"rs-gpios:4";
++        pin_bl = <0>,"+1", <&lcd_screen>,"backlight-gpios:4";
++        display_height = <&lcd_screen>,"display-height-chars:0";
++        display_width = <&lcd_screen>,"display-width-chars:0";
++    };
++
++};
+diff --git a/arch/arm/boot/dts/overlays/hdmi-backlight-hwhack-gpio-overlay.dts b/arch/arm/boot/dts/overlays/hdmi-backlight-hwhack-gpio-overlay.dts
+new file mode 100644
+index 000000000000..50b9a2665c80
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hdmi-backlight-hwhack-gpio-overlay.dts
+@@ -0,0 +1,47 @@
++/*
++ * Devicetree overlay for GPIO based backlight on/off capability.
++ *
++ * Use this if you have one of those HDMI displays whose backlight cannot be
++ * controlled via DPMS over HDMI and plan to do a little soldering to use an
++ * RPi gpio pin for on/off switching.
++ *
++ * See: https://www.waveshare.com/wiki/7inch_HDMI_LCD_(C)#Backlight_Control
++ *
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			hdmi_backlight_hwhack_gpio_pins: hdmi_backlight_hwhack_gpio_pins {
++				brcm,pins = <17>;
++				brcm,function = <1>; /* out */
++			};
++		};
++	};
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			hdmi_backlight_hwhack_gpio: hdmi_backlight_hwhack_gpio {
++				compatible = "gpio-backlight";
++
++				pinctrl-names = "default";
++				pinctrl-0 = <&hdmi_backlight_hwhack_gpio_pins>;
++
++				gpios = <&gpio 17 0>;
++				default-on;
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio_pin   = <&hdmi_backlight_hwhack_gpio>,"gpios:4",
++		             <&hdmi_backlight_hwhack_gpio_pins>,"brcm,pins:0";
++		active_low = <&hdmi_backlight_hwhack_gpio>,"gpios:8";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts
+new file mode 100644
+index 000000000000..142518ab348b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for HiFiBerry Amp/Amp+
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tas5713@1b {
++				#sound-dai-cells = <0>;
++				compatible = "ti,tas5713";
++				reg = <0x1b>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberry,hifiberry-amp";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts
+new file mode 100644
+index 000000000000..ea8a6c8f36c0
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts
+@@ -0,0 +1,34 @@
++// Definitions for HiFiBerry DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			pcm5102a-codec {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5102a";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberry,hifiberry-dac";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
+new file mode 100644
+index 000000000000..ff19015ba656
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
+@@ -0,0 +1,65 @@
++// Definitions for HiFiBerry DAC+
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			dacpro_osc: dacpro_osc {
++				compatible = "hifiberry,dacpro-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				clocks = <&dacpro_osc>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++			hpamp: hpamp@60 {
++				compatible = "ti,tpa6130a2";
++				reg = <0x60>;
++				status = "disabled";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		hifiberry_dacplus: __overlay__ {
++			compatible = "hifiberry,hifiberry-dacplus";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
++		slave = <&hifiberry_dacplus>,"hifiberry-dacplus,slave?";
++		leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts
+new file mode 100644
+index 000000000000..540563dec10f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts
+@@ -0,0 +1,72 @@
++// Definitions for HiFiBerry DAC+ADC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			dacpro_osc: dacpro_osc {
++				compatible = "hifiberry,dacpro-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm_codec: pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				clocks = <&dacpro_osc>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			dmic {
++				#sound-dai-cells = <0>;
++				compatible = "dmic-codec";
++				num-channels = <2>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&sound>;
++		hifiberry_dacplusadc: __overlay__ {
++			compatible = "hifiberry,hifiberry-dacplusadc";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&hifiberry_dacplusadc>,"hifiberry,24db_digital_gain?";
++		slave = <&hifiberry_dacplusadc>,"hifiberry-dacplusadc,slave?";
++		leds_off = <&hifiberry_dacplusadc>,"hifiberry-dacplusadc,leds_off?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts
+new file mode 100644
+index 000000000000..cafa2ccd7ff7
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusadcpro-overlay.dts
+@@ -0,0 +1,65 @@
++// Definitions for HiFiBerry DAC+ADC PRO
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			dacpro_osc: dacpro_osc {
++				compatible = "hifiberry,dacpro-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			hb_dac: pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				clocks = <&dacpro_osc>;
++				status = "okay";
++			};
++			hb_adc: pcm186x@4a {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm1863";
++				reg = <0x4a>;
++				clocks = <&dacpro_osc>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		hifiberry_dacplusadcpro: __overlay__ {
++			compatible = "hifiberry,hifiberry-dacplusadcpro";
++			audio-codec = <&hb_dac &hb_adc>;
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,24db_digital_gain?";
++		slave = <&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,slave?";
++		leds_off = <&hifiberry_dacplusadcpro>,"hifiberry-dacplusadcpro,leds_off?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts
+new file mode 100644
+index 000000000000..63432e8b983f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusdsp-overlay.dts
+@@ -0,0 +1,34 @@
++// Definitions for hifiberry DAC+DSP soundcard overlay
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			dacplusdsp-codec {
++				#sound-dai-cells = <0>;
++				compatible = "hifiberry,dacplusdsp";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-dacplushd-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-dacplushd-overlay.dts
+new file mode 100644
+index 000000000000..c5583e010339
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplushd-overlay.dts
+@@ -0,0 +1,106 @@
++// Definitions for HiFiBerry DAC+ HD
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			dachd_osc: pll_dachd_osc {
++				compatible = "hifiberry,dachd-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm1792a@4c {
++				compatible = "ti,pcm1792a";
++				#sound-dai-cells = <0>;
++				#clock-cells = <0>;
++				clocks = <&dachd_osc>;
++				reg = <0x4c>;
++				status = "okay";
++			};
++			pll: pll@62 {
++				compatible = "hifiberry,dachd-clk";
++				#clock-cells = <0>;
++				reg = <0x62>;
++				clocks = <&dachd_osc>;
++				status = "okay";
++				common_pll_regs = [
++					02 53 03 00 07 20 0F 00
++					10 0D 11 1D 12 0D 13 8C
++					14 8C 15 8C 16 8C 17 8C
++					18 2A 1C 00 1D 0F 1F 00
++					2A 00 2C 00 2F 00 30 00
++					31 00 32 00 34 00 37 00
++					38 00 39 00 3A 00 3B 01
++					3E 00 3F 00 40 00 41 00
++					5A 00 5B 00 95 00 96 00
++					97 00 98 00 99 00 9A 00
++					9B 00 A2 00 A3 00 A4 00
++					B7 92 ];
++				192k_pll_regs = [
++					1A 0C 1B 35 1E F0 20 09
++					21 50 2B 02 2D 10 2E 40
++					33 01 35 22 36 80 3C 22
++					3D 46 ];
++				96k_pll_regs = [
++					1A 0C 1B 35 1E F0 20 09
++					21 50 2B 02 2D 10 2E 40
++					33 01 35 47 36 00 3C 32
++					3D 46 ];
++				48k_pll_regs = [
++					1A 0C 1B 35 1E F0 20 09
++					21 50 2B 02 2D 10 2E 40
++					33 01 35 90 36 00 3C 42
++					3D 46 ];
++				176k4_pll_regs = [
++					1A 3D 1B 09 1E F3 20 13
++					21 75 2B 04 2D 11 2E E0
++					33 02 35 25 36 C0 3C 22
++					3D 7A ];
++				88k2_pll_regs = [
++					1A 3D 1B 09 1E F3 20 13
++					21 75 2B 04 2D 11 2E E0
++					33 01 35 4D 36 80 3C 32
++					3D 7A ];
++				44k1_pll_regs = [
++					1A 3D 1B 09 1E F3 20 13
++					21 75 2B 04 2D 11 2E E0
++					33 01 35 9D 36 00 3C 42
++					3D 7A ];
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberry,hifiberry-dacplushd";
++			i2s-controller = <&i2s>;
++			clocks = <&pll 0>;
++			reset-gpio = <&gpio 16 GPIO_ACTIVE_LOW>;
++			status = "okay";
++		};
++	};
++
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts
+new file mode 100644
+index 000000000000..a2309a50e8d8
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts
+@@ -0,0 +1,41 @@
++// Definitions for HiFiBerry Digi
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberry,hifiberry-digi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts b/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts
+new file mode 100644
+index 000000000000..83de602e76ba
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-digi-pro-overlay.dts
+@@ -0,0 +1,43 @@
++// Definitions for HiFiBerry Digi Pro
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "hifiberry,hifiberry-digi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++			clock44-gpio = <&gpio 5 0>;
++			clock48-gpio = <&gpio 6 0>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/highperi-overlay.dts b/arch/arm/boot/dts/overlays/highperi-overlay.dts
+new file mode 100644
+index 000000000000..46cb76c2d34f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/highperi-overlay.dts
+@@ -0,0 +1,63 @@
++/*
++ * highperi.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&soc>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <1>;
++			ranges = <0x7c000000  0x4 0x7c000000  0x04000000>,
++				 <0x40000000  0x4 0xc0000000  0x00800000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&scb>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <2>;
++			#size-cells = <2>;
++			ranges = <0x0 0x7c000000  0x4 0x7c000000  0x0 0x04000000>,
++				 <0x0 0x40000000  0x4 0xc0000000  0x0 0x00800000>,
++				 <0x6 0x00000000  0x6 0x00000000  0x0 0x40000000>;
++			dma-ranges = <0x0 0x00000000  0x0 0x00000000  0x2 0x00000000>;
++		};
++	};
++
++	fragment@2 {
++		target = <&v3dbus>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <2>;
++			ranges = <0x7c500000  0x4 0x7c500000  0x0 0x03300000>,
++				 <0x40000000  0x4 0xc0000000  0x0 0x00800000>;
++		};
++	};
++
++	fragment@3 {
++		target = <&emmc2bus>;
++		#address-cells = <2>;
++		#size-cells = <1>;
++
++		__overlay__ {
++			#address-cells = <2>;
++			#size-cells = <1>;
++			ranges = <0x0 0x7e000000  0x4 0x7e000000  0x01800000>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hy28a-overlay.dts b/arch/arm/boot/dts/overlays/hy28a-overlay.dts
+new file mode 100644
+index 000000000000..5843a5e9c86a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hy28a-overlay.dts
+@@ -0,0 +1,93 @@
++/*
++ * Device Tree overlay for HY28A display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			hy28a_pins: hy28a_pins {
++				brcm,pins = <17 25 18>;
++				brcm,function = <0 1 1>; /* in out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			hy28a: hy28a@0{
++				compatible = "ilitek,ili9320";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&hy28a_pins>;
++
++				spi-max-frequency = <32000000>;
++				spi-cpol;
++				spi-cpha;
++				rotate = <270>;
++				bgr;
++				fps = <50>;
++				buswidth = <8>;
++				startbyte = <0x70>;
++				reset-gpios = <&gpio 25 1>;
++				led-gpios = <&gpio 18 1>;
++				debug = <0>;
++			};
++
++			hy28a_ts: hy28a-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <17 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 17 0>;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed =		<&hy28a>,"spi-max-frequency:0";
++		rotate =	<&hy28a>,"rotate:0";
++		fps =		<&hy28a>,"fps:0";
++		debug =		<&hy28a>,"debug:0";
++		xohms =		<&hy28a_ts>,"ti,x-plate-ohms;0";
++		resetgpio =	<&hy28a>,"reset-gpios:4",
++				<&hy28a_pins>, "brcm,pins:4";
++		ledgpio =	<&hy28a>,"led-gpios:4",
++				<&hy28a_pins>, "brcm,pins:8";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts b/arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
+new file mode 100644
+index 000000000000..95bfb1eadc20
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hy28b-2017-overlay.dts
+@@ -0,0 +1,152 @@
++/*
++ * Device Tree overlay for HY28b display shield by Texy.
++ * Modified for 2017 version with ILI9325 D chip
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			hy28b_pins: hy28b_pins {
++				brcm,pins = <17 25 18>;
++				brcm,function = <0 1 1>; /* in out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			hy28b: hy28b@0{
++				compatible = "ilitek,ili9325";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&hy28b_pins>;
++
++				spi-max-frequency = <48000000>;
++				spi-cpol;
++				spi-cpha;
++				rotate = <270>;
++				bgr;
++				fps = <50>;
++				buswidth = <8>;
++				startbyte = <0x70>;
++				reset-gpios = <&gpio 25 1>;
++				led-gpios = <&gpio 18 1>;
++
++				init = <0x10000e5 0x78F0
++					0x1000001 0x0100
++					0x1000002 0x0700
++				        0x1000003 0x1030
++					0x1000004 0x0000
++					0x1000008 0x0207
++					0x1000009 0x0000
++				        0x100000a 0x0000
++					0x100000c 0x0000
++					0x100000d 0x0000
++					0x100000f 0x0000
++				        0x1000010 0x0000
++					0x1000011 0x0007
++					0x1000012 0x0000
++					0x1000013 0x0000
++					0x1000007 0x0001
++				        0x2000032
++				        0x2000032
++				        0x2000032
++				        0x2000032
++					0x1000010 0x1090
++					0x1000011 0x0227
++				        0x2000032
++					0x1000012 0x001f
++				        0x2000032
++				        0x1000013 0x1500
++					0x1000029 0x0027
++					0x100002b 0x000d
++				        0x2000032
++				        0x1000020 0x0000
++					0x1000021 0x0000
++				        0x2000032
++					0x1000030 0x0000
++					0x1000031 0x0707
++					0x1000032 0x0307
++					0x1000035 0x0200
++					0x1000036 0x0008
++					0x1000037 0x0004
++					0x1000038 0x0000
++					0x1000039 0x0707
++					0x100003c 0x0002
++					0x100003d 0x1d04
++					0x1000050 0x0000
++				        0x1000051 0x00ef
++					0x1000052 0x0000
++					0x1000053 0x013f
++					0x1000060 0xa700
++				        0x1000061 0x0001
++					0x100006a 0x0000
++					0x1000080 0x0000
++					0x1000081 0x0000
++				        0x1000082 0x0000
++					0x1000083 0x0000
++					0x1000084 0x0000
++					0x1000085 0x0000
++				        0x1000090 0x0010
++					0x1000092 0x0600
++					0x1000007 0x0133>;
++				debug = <0>;
++			};
++
++			hy28b_ts: hy28b-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <17 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 17 0>;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed = 	<&hy28b>,"spi-max-frequency:0";
++		rotate = 	<&hy28b>,"rotate:0";
++		fps = 		<&hy28b>,"fps:0";
++		debug = 	<&hy28b>,"debug:0";
++		xohms =		<&hy28b_ts>,"ti,x-plate-ohms;0";
++		resetgpio =	<&hy28b>,"reset-gpios:4",
++				<&hy28b_pins>, "brcm,pins:4";
++		ledgpio =	<&hy28b>,"led-gpios:4",
++				<&hy28b_pins>, "brcm,pins:8";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/hy28b-overlay.dts b/arch/arm/boot/dts/overlays/hy28b-overlay.dts
+new file mode 100644
+index 000000000000..9edd0848d555
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hy28b-overlay.dts
+@@ -0,0 +1,148 @@
++/*
++ * Device Tree overlay for HY28b display shield by Texy
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			hy28b_pins: hy28b_pins {
++				brcm,pins = <17 25 18>;
++				brcm,function = <0 1 1>; /* in out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			hy28b: hy28b@0{
++				compatible = "ilitek,ili9325";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&hy28b_pins>;
++
++				spi-max-frequency = <48000000>;
++				spi-cpol;
++				spi-cpha;
++				rotate = <270>;
++				bgr;
++				fps = <50>;
++				buswidth = <8>;
++				startbyte = <0x70>;
++				reset-gpios = <&gpio 25 1>;
++				led-gpios = <&gpio 18 1>;
++
++				gamma = "04 1F 4 7 7 0 7 7 6 0\n0F 00 1 7 4 0 0 0 6 7";
++
++				init = <0x10000e7 0x0010
++					0x1000000 0x0001
++					0x1000001 0x0100
++					0x1000002 0x0700
++				        0x1000003 0x1030
++					0x1000004 0x0000
++					0x1000008 0x0207
++					0x1000009 0x0000
++				        0x100000a 0x0000
++					0x100000c 0x0001
++					0x100000d 0x0000
++					0x100000f 0x0000
++				        0x1000010 0x0000
++					0x1000011 0x0007
++					0x1000012 0x0000
++					0x1000013 0x0000
++				        0x2000032
++					0x1000010 0x1590
++					0x1000011 0x0227
++				        0x2000032
++					0x1000012 0x009c
++				        0x2000032
++				        0x1000013 0x1900
++					0x1000029 0x0023
++					0x100002b 0x000e
++				        0x2000032
++				        0x1000020 0x0000
++					0x1000021 0x0000
++				        0x2000032
++					0x1000050 0x0000
++				        0x1000051 0x00ef
++					0x1000052 0x0000
++					0x1000053 0x013f
++					0x1000060 0xa700
++				        0x1000061 0x0001
++					0x100006a 0x0000
++					0x1000080 0x0000
++					0x1000081 0x0000
++				        0x1000082 0x0000
++					0x1000083 0x0000
++					0x1000084 0x0000
++					0x1000085 0x0000
++				        0x1000090 0x0010
++					0x1000092 0x0000
++					0x1000093 0x0003
++					0x1000095 0x0110
++				        0x1000097 0x0000
++					0x1000098 0x0000
++					0x1000007 0x0133
++					0x1000020 0x0000
++				        0x1000021 0x0000
++				        0x2000064>;
++				debug = <0>;
++			};
++
++			hy28b_ts: hy28b-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <17 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 17 0>;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed = 	<&hy28b>,"spi-max-frequency:0";
++		rotate = 	<&hy28b>,"rotate:0";
++		fps = 		<&hy28b>,"fps:0";
++		debug = 	<&hy28b>,"debug:0";
++		xohms =		<&hy28b_ts>,"ti,x-plate-ohms;0";
++		resetgpio =	<&hy28b>,"reset-gpios:4",
++				<&hy28b_pins>, "brcm,pins:4";
++		ledgpio =	<&hy28b>,"led-gpios:4",
++				<&hy28b_pins>, "brcm,pins:8";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts b/arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts
+new file mode 100644
+index 000000000000..0c4cff354674
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i-sabre-q2m-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for I-Sabre Q2M
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sound>;
++		frag0: __overlay__ {
++			compatible = "audiophonics,i-sabre-q2m";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			i-sabre-codec@48 {
++				#sound-dai-cells = <0>;
++				compatible = "audiophonics,i-sabre-codec";
++				reg = <0x48>;
++				status = "okay";
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts b/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts
+new file mode 100644
+index 000000000000..8204b6b3aef8
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-bcm2708-overlay.dts
+@@ -0,0 +1,13 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			compatible = "brcm,bcm2708-i2c";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+new file mode 100644
+index 000000000000..63231b5d7c0c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+@@ -0,0 +1,47 @@
++// Overlay for i2c_gpio bitbanging host bus.
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++
++		__overlay__ {
++			i2c_gpio: i2c@0 {
++				reg = <0xffffffff>;
++				compatible = "i2c-gpio";
++				gpios = <&gpio 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* sda */
++					 &gpio 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* scl */
++					>;
++				i2c-gpio,delay-us = <2>;        /* ~100 kHz */
++				#address-cells = <1>;
++				#size-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/aliases";
++		__overlay__ {
++			i2c_gpio = "/i2c@0";
++		};
++	};
++
++	fragment@2 {
++		target-path = "/__symbols__";
++		__overlay__ {
++			i2c_gpio = "/i2c@0";
++		};
++	};
++
++	__overrides__ {
++		i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
++		i2c_gpio_scl = <&i2c_gpio>,"gpios:16";
++		i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
++		bus = <&i2c_gpio>, "reg:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts b/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts
+new file mode 100644
+index 000000000000..112aed91ecb2
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts
+@@ -0,0 +1,139 @@
++// Umbrella I2C Mux overlay
++
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca9542: mux@70 {
++				compatible = "nxp,pca9542";
++				reg = <0x70>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++
++				i2c@0 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <0>;
++				};
++				i2c@1 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <1>;
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca9545: mux@70 {
++				compatible = "nxp,pca9545";
++				reg = <0x70>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++
++				i2c@0 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <0>;
++				};
++				i2c@1 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <1>;
++				};
++				i2c@2 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <2>;
++				};
++				i2c@3 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <3>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca9548: mux@70 {
++				compatible = "nxp,pca9548";
++				reg = <0x70>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++
++				i2c@0 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <0>;
++				};
++				i2c@1 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <1>;
++				};
++				i2c@2 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <2>;
++				};
++				i2c@3 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <3>;
++				};
++				i2c@4 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <4>;
++				};
++				i2c@5 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <5>;
++				};
++				i2c@6 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <6>;
++				};
++				i2c@7 {
++					#address-cells = <1>;
++					#size-cells = <0>;
++					reg = <7>;
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		pca9542 = <0>, "+0";
++		pca9545 = <0>, "+1";
++		pca9548 = <0>, "+2";
++
++		addr =  <&pca9542>,"reg:0",
++			<&pca9545>,"reg:0",
++			<&pca9548>,"reg:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts b/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts
+new file mode 100644
+index 000000000000..9bb16465a50e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts
+@@ -0,0 +1,26 @@
++// Definitions for NXP PCA9685A I2C PWM controller on ARM I2C bus.
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca: pca@40 {
++				compatible = "nxp,pca9685-pwm";
++				#pwm-cells = <2>;
++				reg = <0x40>;
++				status = "okay";
++			};
++		};
++	};
++	__overrides__ {
++		addr = <&pca>,"reg:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+new file mode 100644
+index 000000000000..227e3c0fa1cd
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+@@ -0,0 +1,266 @@
++// Definitions for several I2C based Real Time Clocks
++// Available through i2c-gpio
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			i2c_gpio: i2c-gpio-rtc@0 {
++				compatible = "i2c-gpio";
++				gpios = <&gpio 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* sda */
++					 &gpio 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* scl */
++					>;
++				i2c-gpio,delay-us = <2>;        /* ~100 kHz */
++				#address-cells = <1>;
++				#size-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			abx80x: abx80x@69 {
++				compatible = "abracon,abx80x";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds1307: ds1307@68 {
++				compatible = "dallas,ds1307";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds1339: ds1339@68 {
++				compatible = "dallas,ds1339";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds3231: ds3231@68 {
++				compatible = "maxim,ds3231";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			mcp7940x: mcp7940x@6f {
++				compatible = "microchip,mcp7940x";
++				reg = <0x6f>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			mcp7941x: mcp7941x@6f {
++				compatible = "microchip,mcp7941x";
++				reg = <0x6f>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf2127@51 {
++				compatible = "nxp,pcf2127";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@8 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf8523: pcf8523@68 {
++				compatible = "nxp,pcf8523";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf8563: pcf8563@51 {
++				compatible = "nxp,pcf8563";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			m41t62: m41t62@68 {
++				compatible = "st,m41t62";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rv3028: rv3028@52 {
++				compatible = "microcrystal,rv3028";
++				reg = <0x52>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf2129@51 {
++				compatible = "nxp,pcf2129";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&i2c_gpio>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rv1805: rv1805@69 {
++				compatible = "microcrystal,rv1805";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		abx80x = <0>,"+1";
++		ds1307 = <0>,"+2";
++		ds1339 = <0>,"+3";
++		ds3231 = <0>,"+4";
++		mcp7940x = <0>,"+5";
++		mcp7941x = <0>,"+6";
++		pcf2127 = <0>,"+7";
++		pcf8523 = <0>,"+8";
++		pcf8563 = <0>,"+9";
++		m41t62 = <0>,"+10";
++		rv3028 = <0>,"+11";
++		pcf2129 = <0>,"+12";
++		rv1805 = <0>,"+13";
++
++		addr = <&abx80x>, "reg:0",
++		       <&ds1307>, "reg:0",
++		       <&ds1339>, "reg:0",
++		       <&ds3231>, "reg:0",
++		       <&mcp7940x>, "reg:0",
++		       <&mcp7941x>, "reg:0",
++		       <&pcf8523>, "reg:0",
++		       <&pcf8563>, "reg:0",
++		       <&m41t62>, "reg:0",
++		       <&rv1805>, "reg:0";
++		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
++				     <&rv1805>,"abracon,tc-diode";
++		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
++					<&abx80x>,"abracon,tc-resistor:0",
++					<&rv3028>,"trickle-resistor-ohms:0",
++					<&rv1805>,"abracon,tc-resistor:0";
++		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
++		wakeup-source = <&ds1339>,"wakeup-source?",
++				<&ds3231>,"wakeup-source?",
++				<&mcp7940x>,"wakeup-source?",
++				<&mcp7941x>,"wakeup-source?";
++		i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
++		i2c_gpio_scl = <&i2c_gpio>,"gpios:16";
++		i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+new file mode 100644
+index 000000000000..735ca303e4fa
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -0,0 +1,278 @@
++// Definitions for several I2C based Real Time Clocks
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			abx80x: abx80x@69 {
++				compatible = "abracon,abx80x";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds1307: ds1307@68 {
++				compatible = "dallas,ds1307";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds1339: ds1339@68 {
++				compatible = "dallas,ds1339";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds3231: ds3231@68 {
++				compatible = "maxim,ds3231";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			mcp7940x: mcp7940x@6f {
++				compatible = "microchip,mcp7940x";
++				reg = <0x6f>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			mcp7941x: mcp7941x@6f {
++				compatible = "microchip,mcp7941x";
++				reg = <0x6f>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf2127@51 {
++				compatible = "nxp,pcf2127";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf8523: pcf8523@68 {
++				compatible = "nxp,pcf8523";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@8 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf8563: pcf8563@51 {
++				compatible = "nxp,pcf8563";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			m41t62: m41t62@68 {
++				compatible = "st,m41t62";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rv3028: rv3028@52 {
++				compatible = "microcrystal,rv3028";
++				reg = <0x52>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf2129@51 {
++				compatible = "nxp,pcf2129";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&i2c_arm>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcf85363@51 {
++				compatible = "nxp,pcf85363";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rv1805: rv1805@69 {
++				compatible = "microcrystal,rv1805";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sd3078: sd3078@32 {
++				compatible = "whwave,sd3078";
++				reg = <0x32>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		abx80x = <0>,"+0";
++		ds1307 = <0>,"+1";
++		ds1339 = <0>,"+2";
++		ds3231 = <0>,"+3";
++		mcp7940x = <0>,"+4";
++		mcp7941x = <0>,"+5";
++		pcf2127 = <0>,"+6";
++		pcf8523 = <0>,"+7";
++		pcf8563 = <0>,"+8";
++		m41t62 = <0>,"+9";
++		rv3028 = <0>,"+10";
++		pcf2129 = <0>,"+11";
++		pcf85363 = <0>,"+12";
++		rv1805 = <0>,"+13";
++		sd3078 = <0>,"+14";
++
++		addr = <&abx80x>, "reg:0",
++		       <&ds1307>, "reg:0",
++		       <&ds1339>, "reg:0",
++		       <&ds3231>, "reg:0",
++		       <&mcp7940x>, "reg:0",
++		       <&mcp7941x>, "reg:0",
++		       <&pcf8523>, "reg:0",
++		       <&pcf8563>, "reg:0",
++		       <&m41t62>, "reg:0",
++		       <&rv1805>, "reg:0";
++		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
++				     <&rv1805>,"abracon,tc-diode";
++		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
++					<&abx80x>,"abracon,tc-resistor:0",
++					<&rv3028>,"trickle-resistor-ohms:0",
++					<&rv1805>,"abracon,tc-resistor:0";
++		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
++		wakeup-source = <&ds1339>,"wakeup-source?",
++				<&ds3231>,"wakeup-source?",
++				<&mcp7940x>,"wakeup-source?",
++				<&mcp7941x>,"wakeup-source?",
++				<&m41t62>,"wakeup-source?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+new file mode 100644
+index 000000000000..ce97837b0db5
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+@@ -0,0 +1,271 @@
++// Definitions for I2C based sensors using the Industrial IO or HWMON interface.
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bme280: bme280@76 {
++				compatible = "bosch,bme280";
++				reg = <0x76>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bmp085: bmp085@77 {
++				compatible = "bosch,bmp085";
++				reg = <0x77>;
++				default-oversampling = <3>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bmp180: bmp180@77 {
++				compatible = "bosch,bmp180";
++				reg = <0x77>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bmp280: bmp280@76 {
++				compatible = "bosch,bmp280";
++				reg = <0x76>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			htu21: htu21@40 {
++				compatible = "htu21";
++				reg = <0x40>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			lm75: lm75@4f {
++				compatible = "lm75";
++				reg = <0x4f>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			si7020: si7020@40 {
++				compatible = "si7020";
++				reg = <0x40>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tmp102: tmp102@48 {
++				compatible = "ti,tmp102";
++				reg = <0x48>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@8 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			hdc100x: hdc100x@40 {
++				compatible = "hdc100x";
++				reg = <0x40>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tsl4531: tsl4531@29 {
++				compatible = "tsl4531";
++				reg = <0x29>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			veml6070: veml6070@38 {
++				compatible = "veml6070";
++				reg = <0x38>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sht3x: sht3x@44 {
++				compatible = "sht3x";
++				reg = <0x44>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ds1621: ds1621@48 {
++				compatible = "ds1621";
++				reg = <0x48>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			max17040: max17040@36 {
++				compatible = "maxim,max17040";
++				reg = <0x36>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bme680: bme680@76 {
++				compatible = "bosch,bme680";
++				reg = <0x76>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@15 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sps30: sps30@69 {
++				compatible = "sensirion,sps30";
++				reg = <0x69>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
++			<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
++			<&ds1621>,"reg:0", <&bme680>,"reg:0";
++		bme280 = <0>,"+0";
++		bmp085 = <0>,"+1";
++		bmp180 = <0>,"+2";
++		bmp280 = <0>,"+3";
++		htu21 = <0>,"+4";
++		lm75 = <0>,"+5";
++		lm75addr = <&lm75>,"reg:0";
++		si7020 = <0>,"+6";
++		tmp102 = <0>,"+7";
++		hdc100x = <0>,"+8";
++		tsl4531 = <0>,"+9";
++		veml6070 = <0>,"+10";
++		sht3x = <0>,"+11";
++		ds1621 = <0>,"+12";
++		max17040 = <0>,"+13";
++		bme680 = <0>,"+14";
++		sps30 = <0>,"+15";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c0-overlay.dts b/arch/arm/boot/dts/overlays/i2c0-overlay.dts
+new file mode 100644
+index 000000000000..7c6771f84d8e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c0-overlay.dts
+@@ -0,0 +1,74 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++			pinctrl-0 = <&i2c0_pins>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c0_pins>;
++		pins1: __overlay__ {
++			brcm,pins = <0 1>;
++			brcm,function = <4>; /* alt0 */
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0_pins>;
++		pins2: __dormant__ {
++			brcm,pins = <28 29>;
++			brcm,function = <4>; /* alt0 */
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0_pins>;
++		pins3: __dormant__ {
++			brcm,pins = <44 45>;
++			brcm,function = <5>; /* alt1 */
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0_pins>;
++		pins4: __dormant__ {
++			brcm,pins = <46 47>;
++			brcm,function = <4>; /* alt0 */
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c0>;
++		__dormant__ {
++			compatible = "brcm,bcm2708-i2c";
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "/aliases";
++		__overlay__ {
++			i2c0 = "/soc/i2c@7e205000";
++		};
++	};
++	__overrides__ {
++		pins_0_1   = <0>,"+1-2-3-4";
++		pins_28_29 = <0>,"-1+2-3-4";
++		pins_44_45 = <0>,"-1-2+3-4";
++		pins_46_47 = <0>,"-1-2-3+4";
++		combine = <0>, "!5";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c1-overlay.dts b/arch/arm/boot/dts/overlays/i2c1-overlay.dts
+new file mode 100644
+index 000000000000..addaed73e665
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c1-overlay.dts
+@@ -0,0 +1,44 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++		__overlay__ {
++			status = "okay";
++			pinctrl-names = "default";
++			pinctrl-0 = <&i2c1_pins>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1_pins>;
++		pins1: __overlay__ {
++			brcm,pins = <2 3>;
++			brcm,function = <4>; /* alt 0 */
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1_pins>;
++		pins2: __dormant__ {
++			brcm,pins = <44 45>;
++			brcm,function = <6>; /* alt 2 */
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c1>;
++		__dormant__ {
++			compatible = "brcm,bcm2708-i2c";
++		};
++	};
++
++	__overrides__ {
++		pins_2_3   = <0>,"=1!2";
++		pins_44_45 = <0>,"!1=2";
++		combine = <0>, "!3";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c3-overlay.dts b/arch/arm/boot/dts/overlays/i2c3-overlay.dts
+new file mode 100644
+index 000000000000..e24a1df21f99
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c3-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&i2c3>;
++		frag0: __overlay__ {
++			status = "okay";
++			pinctrl-names = "default";
++			pinctrl-0 = <&i2c3_pins>;
++			clock-frequency = <100000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c3_pins>;
++		__dormant__ {
++			brcm,pins = <2 3>;
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c3_pins>;
++		__overlay__ {
++			brcm,pins = <4 5>;
++		};
++	};
++
++	__overrides__ {
++		pins_2_3 = <0>,"=1!2";
++		pins_4_5 = <0>,"!1=2";
++		baudrate = <&frag0>, "clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c4-overlay.dts b/arch/arm/boot/dts/overlays/i2c4-overlay.dts
+new file mode 100644
+index 000000000000..14c7f4d1da4c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c4-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&i2c4>;
++		frag0: __overlay__ {
++			status = "okay";
++			pinctrl-names = "default";
++			pinctrl-0 = <&i2c4_pins>;
++			clock-frequency = <100000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c4_pins>;
++		__dormant__ {
++			brcm,pins = <6 7>;
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c4_pins>;
++		__overlay__ {
++			brcm,pins = <8 9>;
++		};
++	};
++
++	__overrides__ {
++		pins_6_7 = <0>,"=1!2";
++		pins_8_9 = <0>,"!1=2";
++		baudrate = <&frag0>, "clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c5-overlay.dts b/arch/arm/boot/dts/overlays/i2c5-overlay.dts
+new file mode 100644
+index 000000000000..7953621112de
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c5-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&i2c5>;
++		frag0: __overlay__ {
++			status = "okay";
++			pinctrl-names = "default";
++			pinctrl-0 = <&i2c5_pins>;
++			clock-frequency = <100000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c5_pins>;
++		__dormant__ {
++			brcm,pins = <10 11>;
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c5_pins>;
++		__overlay__ {
++			brcm,pins = <12 13>;
++		};
++	};
++
++	__overrides__ {
++		pins_10_11 = <0>,"=1!2";
++		pins_12_13 = <0>,"!1=2";
++		baudrate = <&frag0>, "clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2c6-overlay.dts b/arch/arm/boot/dts/overlays/i2c6-overlay.dts
+new file mode 100644
+index 000000000000..555305a7ee1f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c6-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&i2c6>;
++		frag0: __overlay__ {
++			status = "okay";
++			pinctrl-names = "default";
++			pinctrl-0 = <&i2c6_pins>;
++			clock-frequency = <100000>;
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c6_pins>;
++		__dormant__ {
++			brcm,pins = <0 1>;
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c6_pins>;
++		__overlay__ {
++			brcm,pins = <22 23>;
++		};
++	};
++
++	__overrides__ {
++		pins_0_1 = <0>,"=1!2";
++		pins_22_23 = <0>,"!1=2";
++		baudrate = <&frag0>, "clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
+new file mode 100644
+index 000000000000..cf43094c6ff4
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
+@@ -0,0 +1,18 @@
++/*
++ * Device tree overlay to move i2s to gpio 28 to 31 on CM
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s_pins>;
++		__overlay__ {
++			brcm,pins = <28 29 30 31>;
++			brcm,function = <6>; /* alt2 */
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ilitek251x-overlay.dts b/arch/arm/boot/dts/overlays/ilitek251x-overlay.dts
+new file mode 100644
+index 000000000000..551aba591d26
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ilitek251x-overlay.dts
+@@ -0,0 +1,45 @@
++// Device tree overlay for I2C connected Ilitek multiple touch controller
++/dts-v1/;
++/plugin/;
++
++ / {
++	compatible = "brcm,bcm2835";
++
++ 	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {		
++			ili251x_pins: ili251x_pins {
++				brcm,pins = <4>; // interrupt
++				brcm,function = <0>; // in
++				brcm,pull = <2>; // pull-up //
++			};
++		};
++	};
++
++ 	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++ 			ili251x: ili251x@41 {
++				compatible = "ilitek,ili251x";
++				reg = <0x41>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&ili251x_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <4 8>; // high-to-low edge triggered
++				touchscreen-size-x = <16384>;
++				touchscreen-size-y = <9600>;
++			};
++		};
++	};
++
++ 	__overrides__ {
++		interrupt = <&ili251x_pins>,"brcm,pins:0",
++			<&ili251x>,"interrupts:0";
++		sizex = <&ili251x>,"touchscreen-size-x:0";
++		sizey = <&ili251x>,"touchscreen-size-y:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/imx219-overlay.dts b/arch/arm/boot/dts/overlays/imx219-overlay.dts
+new file mode 100644
+index 000000000000..3484bde5a9e8
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
+@@ -0,0 +1,119 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IMX219 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			imx219: imx219@10 {
++				compatible = "sony,imx219";
++				reg = <0x10>;
++				status = "okay";
++
++				clocks = <&imx219_clk>;
++				clock-names = "xclk";
++
++				VANA-supply = <&imx219_vana>;	/* 2.8v */
++				VDIG-supply = <&imx219_vdig>;	/* 1.8v */
++				VDDL-supply = <&imx219_vddl>;	/* 1.2v */
++
++				rotation = <180>;
++
++				port {
++					imx219_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <297000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&imx219_0>;
++					clock-lanes = <0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			imx219_vana: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx219_vana";
++				regulator-min-microvolt = <2800000>;
++				regulator-max-microvolt = <2800000>;
++				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++				enable-active-high;
++			};
++			imx219_vdig: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx219_vdig";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			imx219_vddl: fixedregulator@2 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx219_vddl";
++				regulator-min-microvolt = <1200000>;
++				regulator-max-microvolt = <1200000>;
++			};
++
++			imx219_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&imx219_vana>,"gpio:0";
++			cam0-pwdn      = <&imx219_vana>,"gpio:4";
++		};
++	};
++
++	__overrides__ {
++		rotation = <&imx219>,"rotation:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/imx290-overlay.dts b/arch/arm/boot/dts/overlays/imx290-overlay.dts
+new file mode 100644
+index 000000000000..e536aa7f9e33
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx290-overlay.dts
+@@ -0,0 +1,32 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IMX290 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include "imx290_327-overlay.dtsi"
++
++/{
++	compatible = "brcm,bcm2835";
++
++	// Fragment numbers deliberately high to avoid conflicts with the
++	// included imx290_327 overlay file.
++
++	fragment@101 {
++		target = <&imx290>;
++		__overlay__ {
++			compatible = "sony,imx290";
++		};
++	};
++
++	fragment@102 {
++		target = <&imx290>;
++		__dormant__ {
++			compatible = "sony,imx290-mono";
++		};
++	};
++
++	__overrides__ {
++		mono = <0>, "-101+102";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi b/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
+new file mode 100644
+index 000000000000..8f1dadb13f6a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
+@@ -0,0 +1,145 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Partial definitions for IMX290 or IMX327 camera module on VC I2C bus
++// The compatible string should be set in an overlay that then includes this one
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			imx290: imx290@1a {
++				reg = <0x1a>;
++				status = "okay";
++
++				clocks = <&imx290_clk>;
++				clock-names = "xclk";
++				clock-frequency = <37125000>;
++
++				vdda-supply = <&imx290_vdda>;	/* 2.8v */
++				vdddo-supply = <&imx290_vdddo>;	/* 1.8v */
++				vddd-supply = <&imx290_vddd>;	/* 1.5v */
++
++				port {
++					imx290_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&imx290_0>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			imx290_vdda: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx290_vdda";
++				regulator-min-microvolt = <2800000>;
++				regulator-max-microvolt = <2800000>;
++				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++				enable-active-high;
++			};
++			imx290_vdddo: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx290_vdddo";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			imx290_vddd: fixedregulator@2 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx290_vddd";
++				regulator-min-microvolt = <1500000>;
++				regulator-max-microvolt = <1500000>;
++			};
++
++			imx290_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <37125000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&imx290_vdda>,"gpio:0";
++			cam0-pwdn      = <&imx290_vdda>,"gpio:4";
++		};
++	};
++
++	fragment@6 {
++		target = <&imx290_0>;
++		__overlay__ {
++			data-lanes = <1 2>;
++			link-frequencies =
++				/bits/ 64 <445500000 297000000>;
++		};
++	};
++
++	fragment@7 {
++		target = <&imx290_0>;
++		__dormant__ {
++			data-lanes = <1 2 3 4>;
++			link-frequencies =
++				/bits/ 64 <222750000 148500000>;
++		};
++	};
++
++	fragment@8 {
++		target = <&csi1_ep>;
++		__overlay__ {
++			data-lanes = <1 2>;
++		};
++	};
++
++	fragment@9 {
++		target = <&csi1_ep>;
++		__dormant__ {
++			data-lanes = <1 2 3 4>;
++		};
++	};
++
++	__overrides__ {
++		4lane = <0>, "-6+7-8+9";
++		clock-frequency = <&imx290_clk>,"clock-frequency:0",
++				  <&imx290>,"clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/imx477-overlay.dts b/arch/arm/boot/dts/overlays/imx477-overlay.dts
+new file mode 100644
+index 000000000000..1a97eaaf4c82
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx477-overlay.dts
+@@ -0,0 +1,119 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IMX477 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			imx477: imx477@1a {
++				compatible = "sony,imx477";
++				reg = <0x1a>;
++				status = "okay";
++
++				clocks = <&imx477_clk>;
++				clock-names = "xclk";
++
++				VANA-supply = <&imx477_vana>;	/* 2.8v */
++				VDIG-supply = <&imx477_vdig>;	/* 1.05v */
++				VDDL-supply = <&imx477_vddl>;	/* 1.8v */
++
++				rotation = <180>;
++
++				port {
++					imx477_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <450000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&imx477_0>;
++					clock-lanes = <0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			imx477_vana: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx477_vana";
++				regulator-min-microvolt = <2800000>;
++				regulator-max-microvolt = <2800000>;
++				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++				enable-active-high;
++				startup-delay-us = <300000>;
++			};
++			imx477_vdig: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx477_vdig";
++				regulator-min-microvolt = <1050000>;
++				regulator-max-microvolt = <1050000>;
++			};
++			imx477_vddl: fixedregulator@2 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx477_vddl";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			imx477_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&imx477_vana>,"gpio:0";
++			cam0-pwdn      = <&imx477_vana>,"gpio:4";
++		};
++	};
++
++	__overrides__ {
++		rotation = <&imx477>,"rotation:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts
+new file mode 100644
+index 000000000000..9110f5d34298
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts
+@@ -0,0 +1,42 @@
++// Definitions for IQaudIO CODEC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			da2713@1a {
++				#sound-dai-cells = <0>;
++				compatible = "dlg,da7213";
++				reg = <0x1a>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		iqaudio_dac: __overlay__ {
++			compatible = "iqaudio,iqaudio-codec";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts
+new file mode 100644
+index 000000000000..24073cadd0ef
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts
+@@ -0,0 +1,46 @@
++// Definitions for IQaudIO DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4c>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		frag2: __overlay__ {
++			compatible = "iqaudio,iqaudio-dac";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&frag2>,"iqaudio,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts
+new file mode 100644
+index 000000000000..7c70b25e58d7
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for IQaudIO DAC+
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4c>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		iqaudio_dac: __overlay__ {
++			compatible = "iqaudio,iqaudio-dac";
++			i2s-controller = <&i2s>;
++			mute-gpios = <&gpio 22 0>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&iqaudio_dac>,"iqaudio,24db_digital_gain?";
++		auto_mute_amp = <&iqaudio_dac>,"iqaudio-dac,auto-mute-amp?";
++		unmute_amp = <&iqaudio_dac>,"iqaudio-dac,unmute-amp?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts b/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts
+new file mode 100644
+index 000000000000..ee54095c869b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/iqaudio-digi-wm8804-audio-overlay.dts
+@@ -0,0 +1,47 @@
++// Definitions for IQAudIO Digi WM8804 audio board
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				status = "okay";
++				DVDD-supply = <&vdd_3v3_reg>;
++				PVDD-supply = <&vdd_3v3_reg>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		wm8804_digi: __overlay__ {
++			compatible = "iqaudio,wm8804-digi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		card_name = <&wm8804_digi>,"wm8804-digi,card-name";
++		dai_name = <&wm8804_digi>,"wm8804-digi,dai-name";
++		dai_stream_name = <&wm8804_digi>,"wm8804-digi,dai-stream-name";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/irs1125-overlay.dts b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
+new file mode 100644
+index 000000000000..e926e18e71fc
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
+@@ -0,0 +1,85 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IRS1125 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			irs1125: irs1125@3D {
++				compatible = "infineon,irs1125";
++				reg = <0x3D>;
++				status = "okay";
++
++				pwdn-gpios = <&gpio 5 0>;
++				clocks = <&irs1125_clk>;
++
++				port {
++					irs1125_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <297000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&irs1125_0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&irs1125>,"pwdn-gpios:0";
++			cam0-pwdn      = <&irs1125>,"pwdn-gpios:4";
++		};
++	};
++
++	fragment@5 {
++		target-path = "/";
++		__overlay__ {
++			irs1125_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <26000000>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts b/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+new file mode 100644
+index 000000000000..585c7dbcdf7f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/jedec-spi-nor-overlay.dts
+@@ -0,0 +1,309 @@
++// Overlay for JEDEC SPI-NOR Flash Devices (aka m25p80)
++
++// dtparams:
++//     flash-spi<n>-<m>        - Enables flash device on SPI<n>, CS#<m>.
++//     flash-fastr-spi<n>-<m>  - Enables flash device with fast read capability on SPI<n>, CS#<m>.
++//
++// If devices are present on SPI1 or SPI2, those interfaces must be enabled with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++//
++// Example: A single flash device with fast read capability on SPI0, CS#0:
++// dtoverlay=jedec-spi-nor:flash-fastr-spi0-0
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	// disable spi-dev on spi0.0
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi0.1
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.0
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.1
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.2
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.0
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.1
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.2
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// enable flash on spi0.0
++	fragment@8 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_00: spi_nor@0 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi0.1
++	fragment@9 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_01: spi_nor@1 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi1.0
++	fragment@10 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_10: spi_nor@0 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi1.1
++	fragment@11 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_11: spi_nor@1 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi1.2
++	fragment@12 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_12: spi_nor@2 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <2>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi2.0
++	fragment@13 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_20: spi_nor@0 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi2.1
++	fragment@14 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_21: spi_nor@1 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <1>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// enable flash on spi2.2
++	fragment@15 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			spi_nor_22: spi_nor@2 {
++				#address-cells = <1>;
++				#size-cells = <1>;
++				compatible = "jedec,spi-nor";
++				reg = <2>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	// Enable fast read for device on spi0.0.
++	// Use default active low interrupt signalling.
++	fragment@16 {
++		target = <&spi_nor_00>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi0.1.
++	// Use default active low interrupt signalling.
++	fragment@17 {
++		target = <&spi_nor_01>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi1.0.
++	// Use default active low interrupt signalling.
++	fragment@18 {
++		target = <&spi_nor_10>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi1.1.
++	// Use default active low interrupt signalling.
++	fragment@19 {
++		target = <&spi_nor_11>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi1.2.
++	// Use default active low interrupt signalling.
++	fragment@20 {
++		target = <&spi_nor_12>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi2.0.
++	// Use default active low interrupt signalling.
++	fragment@21 {
++		target = <&spi_nor_20>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi2.1.
++	// Use default active low interrupt signalling.
++	fragment@22 {
++		target = <&spi_nor_21>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	// Enable fast read for device on spi2.2.
++	// Use default active low interrupt signalling.
++	fragment@23 {
++		target = <&spi_nor_22>;
++		__dormant__ {
++			m25p,fast-read;
++		};
++	};
++
++	__overrides__ {
++		flash-spi0-0       = <0>,"+0+8";
++		flash-spi0-1       = <0>,"+1+9";
++		flash-spi1-0       = <0>,"+2+10";
++		flash-spi1-1       = <0>,"+3+11";
++		flash-spi1-2       = <0>,"+4+12";
++		flash-spi2-0       = <0>,"+5+13";
++		flash-spi2-1       = <0>,"+6+14";
++		flash-spi2-2       = <0>,"+7+15";
++		flash-fastr-spi0-0 = <0>,"+0+8+16";
++		flash-fastr-spi0-1 = <0>,"+1+9+17";
++		flash-fastr-spi1-0 = <0>,"+2+10+18";
++		flash-fastr-spi1-1 = <0>,"+3+11+19";
++		flash-fastr-spi1-2 = <0>,"+4+12+20";
++		flash-fastr-spi2-0 = <0>,"+5+13+21";
++		flash-fastr-spi2-1 = <0>,"+6+14+22";
++		flash-fastr-spi2-2 = <0>,"+7+15+23";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/justboom-both-overlay.dts b/arch/arm/boot/dts/overlays/justboom-both-overlay.dts
+new file mode 100644
+index 000000000000..9c42670631c0
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/justboom-both-overlay.dts
+@@ -0,0 +1,65 @@
++// SPDX-License-Identifier: GPL-2.0
++// Definitions for JustBoom Both (Digi+DAC)
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		frag3: __overlay__ {
++			compatible = "justboom,justboom-both";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&frag3>,"justboom,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts b/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts
+new file mode 100644
+index 000000000000..d00515dca419
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/justboom-dac-overlay.dts
+@@ -0,0 +1,46 @@
++// Definitions for JustBoom DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		frag2: __overlay__ {
++			compatible = "justboom,justboom-dac";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain = <&frag2>,"justboom,24db_digital_gain?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts b/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts
+new file mode 100644
+index 000000000000..e73336029c54
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/justboom-digi-overlay.dts
+@@ -0,0 +1,41 @@
++// Definitions for JustBoom Digi
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "justboom,justboom-digi";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ltc294x-overlay.dts b/arch/arm/boot/dts/overlays/ltc294x-overlay.dts
+new file mode 100644
+index 000000000000..6d971f3649ca
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ltc294x-overlay.dts
+@@ -0,0 +1,86 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ltc2941: ltc2941@64 {
++				compatible = "lltc,ltc2941";
++				reg = <0x64>;
++				lltc,resistor-sense = <50>;
++				lltc,prescaler-exponent = <7>; 
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ltc2942: ltc2942@64 {
++				compatible = "lltc,ltc2942";
++				reg = <0x64>;
++				lltc,resistor-sense = <50>;
++				lltc,prescaler-exponent = <7>; 
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ltc2943: ltc2943@64 {
++				compatible = "lltc,ltc2943";
++				reg = <0x64>;
++				lltc,resistor-sense = <50>;
++				lltc,prescaler-exponent = <7>; 
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ltc2944: ltc2944@64 {
++				compatible = "lltc,ltc2944";
++				reg = <0x64>;
++				lltc,resistor-sense = <50>;
++				lltc,prescaler-exponent = <7>; 
++			};
++		};
++	};
++
++	__overrides__ {
++		ltc2941 = <0>,"+0";
++		ltc2942 = <0>,"+1";
++		ltc2943 = <0>,"+2";
++		ltc2944 = <0>,"+3";
++		resistor-sense = <&ltc2941>, "lltc,resistor-sense:0",
++			         <&ltc2942>, "lltc,resistor-sense:0",
++				 <&ltc2943>, "lltc,resistor-sense:0",
++				 <&ltc2944>, "lltc,resistor-sense:0";
++		prescaler-exponent = <&ltc2941>, "lltc,prescaler-exponent:0",
++			         <&ltc2942>, "lltc,prescaler-exponent:0",
++				 <&ltc2943>, "lltc,prescaler-exponent:0",
++				 <&ltc2944>, "lltc,prescaler-exponent:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/max98357a-overlay.dts b/arch/arm/boot/dts/overlays/max98357a-overlay.dts
+new file mode 100644
+index 000000000000..9e2afb05b7cb
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/max98357a-overlay.dts
+@@ -0,0 +1,84 @@
++// Overlay for Maxim MAX98357A audio DAC
++
++// dtparams:
++//     no-sdmode  - SD_MODE pin not managed by driver.
++//     sdmode-pin - Specify GPIO pin to which SD_MODE is connected (default 4).
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	/* Enable I2S */
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	/* DAC whose SD_MODE pin is managed by driver (via GPIO pin) */
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			max98357a_dac: max98357a {
++				compatible = "maxim,max98357a";
++				#sound-dai-cells = <0>;
++				sdmode-gpios = <&gpio 4 0>;   /* 2nd word overwritten by sdmode-pin parameter */
++				status = "okay";
++			};
++		};
++	};
++
++	/* DAC whose SD_MODE pin is not managed by driver */
++	fragment@2 {
++		target-path = "/";
++		__dormant__ {
++			max98357a_nsd: max98357a {
++				compatible = "maxim,max98357a";
++				#sound-dai-cells = <0>;
++				status = "okay";
++			};
++		};
++	};
++
++	/* Soundcard connecting I2S to DAC with SD_MODE */
++	fragment@3 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "MAX98357A";
++			status = "okay";
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++			simple-audio-card,codec {
++				sound-dai = <&max98357a_dac>;
++			};
++		};
++	};
++
++	/* Soundcard connecting I2S to DAC without SD_MODE */
++	fragment@4 {
++		target = <&sound>;
++		__dormant__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "MAX98357A";
++			status = "okay";
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++			simple-audio-card,codec {
++				sound-dai = <&max98357a_nsd>;
++			};
++		};
++	};
++
++	__overrides__ {
++		no-sdmode  = <0>,"-1+2-3+4";
++		sdmode-pin = <&max98357a_dac>,"sdmode-gpios:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/maxtherm-overlay.dts b/arch/arm/boot/dts/overlays/maxtherm-overlay.dts
+new file mode 100644
+index 000000000000..34d5727069ec
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/maxtherm-overlay.dts
+@@ -0,0 +1,166 @@
++/*
++ * Universal device tree overlay for SPI devices
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	maxfrag: fragment@8 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			max: maxtherm@0 {
++				compatible = "maxim,max6675";
++				reg = <0>;
++				spi-max-frequency = <500000>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855e", "maxim,max31855";
++		};
++	};
++
++	fragment@10 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855j", "maxim,max31855";
++		};
++	};
++
++	fragment@11 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855k", "maxim,max31855";
++		};
++	};
++
++	fragment@12 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855n", "maxim,max31855";
++		};
++	};
++
++	fragment@13 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855r", "maxim,max31855";
++		};
++	};
++
++	fragment@14 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855s", "maxim,max31855";
++		};
++	};
++
++	fragment@15 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31855t", "maxim,max31855";
++		};
++	};
++
++	__overrides__ {
++		spi0-0 = <0>, "+0",
++			 <&maxfrag>,"target:0=",<&spi0>,
++			 <&max>,"reg:0=0";
++		spi0-1 = <0>, "+1",
++			 <&maxfrag>,"target:0=",<&spi0>,
++			 <&max>,"reg:0=1";
++		spi1-0 = <0>, "+2",
++			 <&maxfrag>,"target:0=",<&spi1>,
++			 <&max>,"reg:0=0";
++		spi1-1 = <0>, "+3",
++			 <&maxfrag>,"target:0=",<&spi1>,
++			 <&max>,"reg:0=1";
++		spi1-2 = <0>, "+4",
++			 <&maxfrag>,"target:0=",<&spi1>,
++			 <&max>,"reg:0=2";
++		spi2-0 = <0>, "+5",
++			 <&maxfrag>,"target:0=",<&spi2>,
++			 <&max>,"reg:0=0";
++		spi2-1 = <0>, "+6",
++			 <&maxfrag>,"target:0=",<&spi2>,
++			 <&max>,"reg:0=1";
++		spi2-2 = <0>, "+7",
++			 <&maxfrag>,"target:0=",<&spi2>,
++			 <&max>,"reg:0=2";
++		max6675 = <&max>,"compatible=maxim,max6675";
++		max31855 = <&max>,"compatible=maxim,max31855";
++		max31855e = <0>,"+9";
++		max31855j = <0>,"+10";
++		max31855k = <0>,"+11";
++		max31855n = <0>,"+12";
++		max31855r = <0>,"+13";
++		max31855s = <0>,"+14";
++		max31855t = <0>,"+15";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mbed-dac-overlay.dts b/arch/arm/boot/dts/overlays/mbed-dac-overlay.dts
+new file mode 100644
+index 000000000000..840dd9b31db4
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mbed-dac-overlay.dts
+@@ -0,0 +1,64 @@
++// Definitions for mbed DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++                        #size-cells = <0>;
++			status = "okay";
++
++			tlv320aic23: codec@1a {
++				#sound-dai-cells = <0>;
++				reg = <0x1a>;
++				compatible = "ti,tlv320aic23";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			i2s-controller = <&i2s>;
++			status = "okay";
++
++			simple-audio-card,name = "mbed-DAC";
++
++			simple-audio-card,widgets =
++				"Microphone", "Mic Jack",
++				"Line", "Line In",
++				"Headphone", "Headphone Jack";
++
++			simple-audio-card,routing =
++				"Headphone Jack", "LHPOUT",
++				"Headphone Jack", "RHPOUT",
++				"LLINEIN", "Line In",
++				"RLINEIN", "Line In",
++				"MICIN", "Mic Jack";
++
++			simple-audio-card,format = "i2s";
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++
++			sound_master: simple-audio-card,codec {
++				sound-dai = <&tlv320aic23>;
++				system-clock-frequency = <12288000>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mcp23017-overlay.dts b/arch/arm/boot/dts/overlays/mcp23017-overlay.dts
+new file mode 100644
+index 000000000000..c546d8ba7e6d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp23017-overlay.dts
+@@ -0,0 +1,69 @@
++// Definitions for MCP23017 Gpio Extender from Microchip Semiconductor
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp23017_pins: mcp23017_pins@20 {
++				brcm,pins = <4>;
++				brcm,function = <0>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp23017: mcp@20 {
++				compatible = "microchip,mcp23017";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&mcp23017>;
++		__dormant__ {
++			compatible = "microchip,mcp23008";
++		};
++	};
++
++	fragment@4 {
++		target = <&mcp23017>;
++		mcp23017_irq: __overlay__ {
++			#interrupt-cells=<2>;
++			interrupt-parent = <&gpio>;
++			interrupts = <4 2>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	__overrides__ {
++		gpiopin = <&mcp23017_pins>,"brcm,pins:0",
++				<&mcp23017_irq>,"interrupts:0";
++		addr = <&mcp23017>,"reg:0", <&mcp23017_pins>,"reg:0";
++		mcp23008 = <0>,"=3";
++		noints = <0>,"!1!4";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts b/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts
+new file mode 100644
+index 000000000000..484d64b225fb
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp23s17-overlay.dts
+@@ -0,0 +1,732 @@
++// Overlay for MCP23S08/17 GPIO Extenders from Microchip Semiconductor
++
++// dtparams:
++//     s08-spi<n>-<m>-present  - 4-bit integer, bitmap indicating MCP23S08 devices present on SPI<n>, CS#<m>.
++//     s17-spi<n>-<m>-present  - 8-bit integer, bitmap indicating MCP23S17 devices present on SPI<n>, CS#<m>.
++//     s08-spi<n>-<m>-int-gpio - integer, enables interrupts on a single MCP23S08 device on SPI<n>, CS#<m>, specifies the GPIO pin to which INT output is connected.
++//     s17-spi<n>-<m>-int-gpio - integer, enables mirrored interrupts on a single MCP23S17 device on SPI<n>, CS#<m>, specifies the GPIO pin to which either INTA or INTB output is connected.
++//
++// If devices are present on SPI1 or SPI2, those interfaces must be enabled with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++// If interrupts are enabled for a device on a given CS# on a SPI bus, that device must be the only one present on that SPI bus/CS#.
++//
++// Example 1: A single MCP23S17 device on SPI0, CS#0 with its SPI addr set to 0 and INTA output connected to GPIO25:
++// dtoverlay=mcp23s17:s17-spi0-0-present=1,s17-spi0-0-int-gpio=25
++//
++// Example 2: Two MCP23S08 devices on SPI1, CS#0 with their addrs set to 2 and 3. Three MCP23S17 devices on SPI1, CS#1 with their addrs set to 0, 1 and 7:
++// dtoverlay=spi1-2cs
++// dtoverlay=mcp23s17:s08-spi1-0-present=12,s17-spi1-1-present=131
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	// disable spi-dev on spi0.0
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi0.1
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.0
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.1
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi1.2
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.0
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.1
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// disable spi-dev on spi2.2
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	// enable one or more mcp23s08s on spi0.0
++	fragment@8 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_00: mcp23s08@0 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi0-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi0-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi0.1
++	fragment@9 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_01: mcp23s08@1 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi0-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi0-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi1.0
++	fragment@10 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_10: mcp23s08@0 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi1-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi1-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi1.1
++	fragment@11 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_11: mcp23s08@1 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi1-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi1-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi1.2
++	fragment@12 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_12: mcp23s08@2 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi1-2-present parameter */
++     				reg = <2>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi1-2-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi2.0
++	fragment@13 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_20: mcp23s08@0 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi2-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi2-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi2.1
++	fragment@14 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_21: mcp23s08@1 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi2-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi2-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s08s on spi2.2
++	fragment@15 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s08_22: mcp23s08@2 {
++				compatible = "microchip,mcp23s08";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s08-spi2-2-present parameter */
++     				reg = <2>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s08-spi2-2-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi0.0
++	fragment@16 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_00: mcp23s17@0 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi0-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi0-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi0.1
++	fragment@17 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_01: mcp23s17@1 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi0-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi0-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi1.0
++	fragment@18 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_10: mcp23s17@0 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi1-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi1-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi1.1
++	fragment@19 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_11: mcp23s17@1 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi1-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi1-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi1.2
++	fragment@20 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_12: mcp23s17@2 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi1-2-present parameter */
++     				reg = <2>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi1-2-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi2.0
++	fragment@21 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_20: mcp23s17@0 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi2-0-present parameter */
++     				reg = <0>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi2-0-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi2.1
++	fragment@22 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_21: mcp23s17@1 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi2-1-present parameter */
++     				reg = <1>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi2-1-int-gpio parameter */
++			};
++		};
++	};
++
++	// enable one or more mcp23s17s on spi2.2
++	fragment@23 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++			mcp23s17_22: mcp23s17@2 {
++				compatible = "microchip,mcp23s17";
++  				gpio-controller;
++  				#gpio-cells = <2>;
++    				microchip,spi-present-mask = <0x00>;  /* overwritten by mcp23s17-spi2-2-present parameter */
++     				reg = <2>;
++    				spi-max-frequency = <500000>;
++				status = "okay";
++				#interrupt-cells=<2>;
++				interrupts = <0 2>;  /* 1st word overwritten by mcp23s17-spi2-2-int-gpio parameter */
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.0 as a input with no pull-up/down
++	fragment@24 {
++		target = <&gpio>;
++		__dormant__ {
++			spi0_0_int_pins: spi0_0_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi0-0-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi0.1 as a input with no pull-up/down
++	fragment@25 {
++		target = <&gpio>;
++		__dormant__ {
++			spi0_1_int_pins: spi0_1_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi0-1-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.0 as a input with no pull-up/down
++	fragment@26 {
++		target = <&gpio>;
++		__dormant__ {
++			spi1_0_int_pins: spi1_0_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi1-0-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.1 as a input with no pull-up/down
++	fragment@27 {
++		target = <&gpio>;
++		__dormant__ {
++			spi1_1_int_pins: spi1_1_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi1-1-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi1.2 as a input with no pull-up/down
++	fragment@28 {
++		target = <&gpio>;
++		__dormant__ {
++			spi1_2_int_pins: spi1_2_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi1-2-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.0 as a input with no pull-up/down
++	fragment@29 {
++		target = <&gpio>;
++		__dormant__ {
++			spi2_0_int_pins: spi2_0_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi2-0-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.1 as a input with no pull-up/down
++	fragment@30 {
++		target = <&gpio>;
++		__dormant__ {
++			spi2_1_int_pins: spi2_1_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi2-1-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to INT(A/B) output of mcp23s08/17 on spi2.2 as a input with no pull-up/down
++	fragment@31 {
++		target = <&gpio>;
++		__dormant__ {
++			spi2_2_int_pins: spi2_2_int_pins {
++				brcm,pins = <0>;  /* overwritten by mcp23s08/17-spi2-2-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi0.0.
++	// Use default active low interrupt signalling.
++	fragment@32 {
++		target = <&mcp23s08_00>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi0.1.
++	// Use default active low interrupt signalling.
++	fragment@33 {
++		target = <&mcp23s08_01>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi1.0.
++	// Use default active low interrupt signalling.
++	fragment@34 {
++		target = <&mcp23s08_10>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi1.1.
++	// Use default active low interrupt signalling.
++	fragment@35 {
++		target = <&mcp23s08_11>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi1.2.
++	// Use default active low interrupt signalling.
++	fragment@36 {
++		target = <&mcp23s08_12>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi2.0.
++	// Use default active low interrupt signalling.
++	fragment@37 {
++		target = <&mcp23s08_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi2.1.
++	// Use default active low interrupt signalling.
++	fragment@38 {
++		target = <&mcp23s08_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s08 on spi2.2.
++	// Use default active low interrupt signalling.
++	fragment@39 {
++		target = <&mcp23s08_22>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi0.0.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Use default active low interrupt signalling.
++	fragment@40 {
++		target = <&mcp23s17_00>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi0.1.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@41 {
++		target = <&mcp23s17_01>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi1.0.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@42 {
++		target = <&mcp23s17_10>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi1.1.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@43 {
++		target = <&mcp23s17_11>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi1.2.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@44 {
++		target = <&mcp23s17_12>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi2.0.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@45 {
++		target = <&mcp23s17_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi2.1.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@46 {
++		target = <&mcp23s17_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	// Enable interrupts for a mcp23s17 on spi2.2.
++	// Enable mirroring so that either INTA or INTB output of mcp23s17 can be connected to the GPIO pin.
++	// Configure INTA/B outputs of mcp23s08/17 as active low.
++	fragment@47 {
++		target = <&mcp23s17_22>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			microchip,irq-mirror;
++		};
++	};
++
++	__overrides__ {
++		s08-spi0-0-present = <0>,"+0+8",  <&mcp23s08_00>,"microchip,spi-present-mask:0";
++		s08-spi0-1-present = <0>,"+1+9",  <&mcp23s08_01>,"microchip,spi-present-mask:0";
++		s08-spi1-0-present = <0>,"+2+10", <&mcp23s08_10>,"microchip,spi-present-mask:0";
++		s08-spi1-1-present = <0>,"+3+11", <&mcp23s08_11>,"microchip,spi-present-mask:0";
++		s08-spi1-2-present = <0>,"+4+12", <&mcp23s08_12>,"microchip,spi-present-mask:0";
++		s08-spi2-0-present = <0>,"+5+13", <&mcp23s08_20>,"microchip,spi-present-mask:0";
++		s08-spi2-1-present = <0>,"+6+14", <&mcp23s08_21>,"microchip,spi-present-mask:0";
++		s08-spi2-2-present = <0>,"+7+15", <&mcp23s08_22>,"microchip,spi-present-mask:0";
++		s17-spi0-0-present = <0>,"+0+16", <&mcp23s17_00>,"microchip,spi-present-mask:0";
++		s17-spi0-1-present = <0>,"+1+17", <&mcp23s17_01>,"microchip,spi-present-mask:0";
++		s17-spi1-0-present = <0>,"+2+18", <&mcp23s17_10>,"microchip,spi-present-mask:0";
++		s17-spi1-1-present = <0>,"+3+19", <&mcp23s17_11>,"microchip,spi-present-mask:0";
++		s17-spi1-2-present = <0>,"+4+20", <&mcp23s17_12>,"microchip,spi-present-mask:0";
++		s17-spi2-0-present = <0>,"+5+21", <&mcp23s17_20>,"microchip,spi-present-mask:0";
++		s17-spi2-1-present = <0>,"+6+22", <&mcp23s17_21>,"microchip,spi-present-mask:0";
++		s17-spi2-2-present = <0>,"+7+23", <&mcp23s17_22>,"microchip,spi-present-mask:0";
++		s08-spi0-0-int-gpio = <0>,"+24+32", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s08_00>,"interrupts:0";
++		s08-spi0-1-int-gpio = <0>,"+25+33", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s08_01>,"interrupts:0";
++		s08-spi1-0-int-gpio = <0>,"+26+34", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s08_10>,"interrupts:0";
++		s08-spi1-1-int-gpio = <0>,"+27+35", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s08_11>,"interrupts:0";
++		s08-spi1-2-int-gpio = <0>,"+28+36", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s08_12>,"interrupts:0";
++		s08-spi2-0-int-gpio = <0>,"+29+37", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s08_20>,"interrupts:0";
++		s08-spi2-1-int-gpio = <0>,"+30+38", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s08_21>,"interrupts:0";
++		s08-spi2-2-int-gpio = <0>,"+31+39", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s08_22>,"interrupts:0";
++		s17-spi0-0-int-gpio = <0>,"+24+40", <&spi0_0_int_pins>,"brcm,pins:0", <&mcp23s17_00>,"interrupts:0";
++		s17-spi0-1-int-gpio = <0>,"+25+41", <&spi0_1_int_pins>,"brcm,pins:0", <&mcp23s17_01>,"interrupts:0";
++		s17-spi1-0-int-gpio = <0>,"+26+42", <&spi1_0_int_pins>,"brcm,pins:0", <&mcp23s17_10>,"interrupts:0";
++		s17-spi1-1-int-gpio = <0>,"+27+43", <&spi1_1_int_pins>,"brcm,pins:0", <&mcp23s17_11>,"interrupts:0";
++		s17-spi1-2-int-gpio = <0>,"+28+44", <&spi1_2_int_pins>,"brcm,pins:0", <&mcp23s17_12>,"interrupts:0";
++		s17-spi2-0-int-gpio = <0>,"+29+45", <&spi2_0_int_pins>,"brcm,pins:0", <&mcp23s17_20>,"interrupts:0";
++		s17-spi2-1-int-gpio = <0>,"+30+46", <&spi2_1_int_pins>,"brcm,pins:0", <&mcp23s17_21>,"interrupts:0";
++		s17-spi2-2-int-gpio = <0>,"+31+47", <&spi2_2_int_pins>,"brcm,pins:0", <&mcp23s17_22>,"interrupts:0";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
+new file mode 100755
+index 000000000000..46f143d809cc
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
+@@ -0,0 +1,73 @@
++/*
++ * Device tree overlay for mcp251x/can0 on spi0.0
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    /* disable spi-dev for spi0.0 */
++    fragment@0 {
++        target = <&spi0>;
++        __overlay__ {
++            status = "okay";
++        };
++    };
++
++    fragment@1 {
++	target = <&spidev0>;
++	__overlay__ {
++	    status = "disabled";
++	};
++    };
++
++    /* the interrupt pin of the can-controller */
++    fragment@2 {
++        target = <&gpio>;
++        __overlay__ {
++            can0_pins: can0_pins {
++                brcm,pins = <25>;
++                brcm,function = <0>; /* input */
++            };
++        };
++    };
++
++    /* the clock/oscillator of the can-controller */
++    fragment@3 {
++        target-path = "/";
++        __overlay__ {
++            /* external oscillator of mcp2515 on SPI0.0 */
++            can0_osc: can0_osc {
++                compatible = "fixed-clock";
++                #clock-cells = <0>;
++                clock-frequency  = <16000000>;
++            };
++        };
++    };
++
++    /* the spi config of the can-controller itself binding everything together */
++    fragment@4 {
++        target = <&spi0>;
++        __overlay__ {
++            /* needed to avoid dtc warning */
++            #address-cells = <1>;
++            #size-cells = <0>;
++            can0: mcp2515@0 {
++                reg = <0>;
++                compatible = "microchip,mcp2515";
++                pinctrl-names = "default";
++                pinctrl-0 = <&can0_pins>;
++                spi-max-frequency = <10000000>;
++                interrupt-parent = <&gpio>;
++                interrupts = <25 8>; /* IRQ_TYPE_LEVEL_LOW */
++                clocks = <&can0_osc>;
++            };
++        };
++    };
++    __overrides__ {
++        oscillator = <&can0_osc>,"clock-frequency:0";
++        spimaxfrequency = <&can0>,"spi-max-frequency:0";
++        interrupt = <&can0_pins>,"brcm,pins:0",<&can0>,"interrupts:0";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
+new file mode 100644
+index 000000000000..0a8dd576818e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
+@@ -0,0 +1,73 @@
++/*
++ * Device tree overlay for mcp251x/can1 on spi0.1 edited by petit_miner
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    /* disable spi-dev for spi0.1 */
++    fragment@0 {
++        target = <&spi0>;
++        __overlay__ {
++            status = "okay";
++        };
++    };
++
++    fragment@1 {
++	target = <&spidev1>;
++	__overlay__ {
++	    status = "disabled";
++	};
++    };
++
++    /* the interrupt pin of the can-controller */
++    fragment@2 {
++        target = <&gpio>;
++        __overlay__ {
++            can1_pins: can1_pins {
++                brcm,pins = <25>;
++                brcm,function = <0>; /* input */
++            };
++        };
++    };
++
++    /* the clock/oscillator of the can-controller */
++    fragment@3 {
++        target-path = "/";
++        __overlay__ {
++            /* external oscillator of mcp2515 on spi0.1 */
++            can1_osc: can1_osc {
++                compatible = "fixed-clock";
++                #clock-cells = <0>;
++                clock-frequency  = <16000000>;
++            };
++        };
++    };
++
++    /* the spi config of the can-controller itself binding everything together */
++    fragment@4 {
++        target = <&spi0>;
++        __overlay__ {
++            /* needed to avoid dtc warning */
++            #address-cells = <1>;
++            #size-cells = <0>;
++            can1: mcp2515@1 {
++                reg = <1>;
++                compatible = "microchip,mcp2515";
++                pinctrl-names = "default";
++                pinctrl-0 = <&can1_pins>;
++                spi-max-frequency = <10000000>;
++                interrupt-parent = <&gpio>;
++                interrupts = <25 8>; /* IRQ_TYPE_LEVEL_LOW */
++                clocks = <&can1_osc>;
++            };
++        };
++    };
++    __overrides__ {
++        oscillator = <&can1_osc>,"clock-frequency:0";
++        spimaxfrequency = <&can1>,"spi-max-frequency:0";
++        interrupt = <&can1_pins>,"brcm,pins:0",<&can1>,"interrupts:0";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/mcp3008-overlay.dts b/arch/arm/boot/dts/overlays/mcp3008-overlay.dts
+new file mode 100755
+index 000000000000..957fdb9310af
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp3008-overlay.dts
+@@ -0,0 +1,205 @@
++/*
++ * Device tree overlay for Microchip mcp3008 10-Bit A/D Converters
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@8 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_00: mcp3008@0 {
++				compatible = "microchip,mcp3008";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_01: mcp3008@1 {
++				compatible = "microchip,mcp3008";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_10: mcp3008@0 {
++				compatible = "microchip,mcp3008";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_11: mcp3008@1 {
++				compatible = "microchip,mcp3008";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_12: mcp3008@2 {
++				compatible = "microchip,mcp3008";
++				reg = <2>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_20: mcp3008@0 {
++				compatible = "microchip,mcp3008";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_21: mcp3008@1 {
++				compatible = "microchip,mcp3008";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@15 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3008_22: mcp3008@2 {
++				compatible = "microchip,mcp3008";
++				reg = <2>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	__overrides__ {
++		spi0-0-present = <0>, "+0+8";
++		spi0-1-present = <0>, "+1+9";
++		spi1-0-present = <0>, "+2+10";
++		spi1-1-present = <0>, "+3+11";
++		spi1-2-present = <0>, "+4+12";
++		spi2-0-present = <0>, "+5+13";
++		spi2-1-present = <0>, "+6+14";
++		spi2-2-present = <0>, "+7+15";
++		spi0-0-speed = <&mcp3008_00>, "spi-max-frequency:0";
++		spi0-1-speed = <&mcp3008_01>, "spi-max-frequency:0";
++		spi1-0-speed = <&mcp3008_10>, "spi-max-frequency:0";
++		spi1-1-speed = <&mcp3008_11>, "spi-max-frequency:0";
++		spi1-2-speed = <&mcp3008_12>, "spi-max-frequency:0";
++		spi2-0-speed = <&mcp3008_20>, "spi-max-frequency:0";
++		spi2-1-speed = <&mcp3008_21>, "spi-max-frequency:0";
++		spi2-2-speed = <&mcp3008_22>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mcp3202-overlay.dts b/arch/arm/boot/dts/overlays/mcp3202-overlay.dts
+new file mode 100755
+index 000000000000..8e4e9f60f285
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp3202-overlay.dts
+@@ -0,0 +1,205 @@
++/*
++ * Device tree overlay for Microchip mcp3202 12-Bit A/D Converters
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@8 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_00: mcp3202@0 {
++				compatible = "mcp3202";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&spi0>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_01: mcp3202@1 {
++				compatible = "mcp3202";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_10: mcp3202@0 {
++				compatible = "mcp3202";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_11: mcp3202@1 {
++				compatible = "mcp3202";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&spi1>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_12: mcp3202@2 {
++				compatible = "mcp3202";
++				reg = <2>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_20: mcp3202@0 {
++				compatible = "mcp3202";
++				reg = <0>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_21: mcp3202@1 {
++				compatible = "mcp3202";
++				reg = <1>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	fragment@15 {
++		target = <&spi2>;
++		__dormant__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp3202_22: mcp3202@2 {
++				compatible = "mcp3202";
++				reg = <2>;
++				spi-max-frequency = <1600000>;
++			};
++		};
++	};
++
++	__overrides__ {
++		spi0-0-present = <0>, "+0+8";
++		spi0-1-present = <0>, "+1+9";
++		spi1-0-present = <0>, "+2+10";
++		spi1-1-present = <0>, "+3+11";
++		spi1-2-present = <0>, "+4+12";
++		spi2-0-present = <0>, "+5+13";
++		spi2-1-present = <0>, "+6+14";
++		spi2-2-present = <0>, "+7+15";
++		spi0-0-speed = <&mcp3202_00>, "spi-max-frequency:0";
++		spi0-1-speed = <&mcp3202_01>, "spi-max-frequency:0";
++		spi1-0-speed = <&mcp3202_10>, "spi-max-frequency:0";
++		spi1-1-speed = <&mcp3202_11>, "spi-max-frequency:0";
++		spi1-2-speed = <&mcp3202_12>, "spi-max-frequency:0";
++		spi2-0-speed = <&mcp3202_20>, "spi-max-frequency:0";
++		spi2-1-speed = <&mcp3202_21>, "spi-max-frequency:0";
++		spi2-2-speed = <&mcp3202_22>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mcp342x-overlay.dts b/arch/arm/boot/dts/overlays/mcp342x-overlay.dts
+new file mode 100644
+index 000000000000..714eca5a4b5e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp342x-overlay.dts
+@@ -0,0 +1,164 @@
++// Overlay for MCP3421-8 ADCs from Microchip Semiconductor
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3421: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3421";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3422: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3422";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3423: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3423";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3424: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3424";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3425: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3425","mcp3425";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3426: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3426";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3427: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3427";
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			mcp3428: mcp@68 {
++				reg = <0x68>;
++				compatible = "microchip,mcp3428";
++
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		addr = <&mcp3421>,"reg:0",
++		       <&mcp3422>,"reg:0",
++		       <&mcp3423>,"reg:0",
++		       <&mcp3424>,"reg:0",
++		       <&mcp3425>,"reg:0",
++		       <&mcp3426>,"reg:0",
++		       <&mcp3427>,"reg:0",
++		       <&mcp3428>,"reg:0";
++		mcp3421 = <0>,"=0";
++		mcp3422 = <0>,"=1";
++		mcp3423 = <0>,"=2";
++		mcp3424 = <0>,"=3";
++		mcp3425 = <0>,"=4";
++		mcp3426 = <0>,"=5";
++		mcp3427 = <0>,"=6";
++		mcp3428 = <0>,"=7";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/media-center-overlay.dts b/arch/arm/boot/dts/overlays/media-center-overlay.dts
+new file mode 100644
+index 000000000000..1b56963f4f16
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/media-center-overlay.dts
+@@ -0,0 +1,134 @@
++/*
++ * Device Tree overlay for Media Center HAT by Pi Supply
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++
++			spidev@0{
++				status = "disabled";
++			};
++
++			spidev@1{
++				status = "disabled";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			rpi_display_pins: rpi_display_pins {
++				brcm,pins = <12 23 24 25>;
++				brcm,function = <1 1 1 0>; /* out out out in */
++				brcm,pull = <0 0 0 2>; /* - - - up */
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			rpidisplay: rpi-display@0{
++				compatible = "ilitek,ili9341";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&rpi_display_pins>;
++
++				spi-max-frequency = <32000000>;
++				rotate = <90>;
++				bgr;
++				fps = <30>;
++				buswidth = <8>;
++				reset-gpios = <&gpio 23 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 12 0>;
++				debug = <0>;
++			};
++
++			rpidisplay_ts: rpi-display-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <25 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 25 1>;
++				ti,x-plate-ohms = /bits/ 16 <60>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			lirc_rpi: lirc_rpi {
++				compatible = "rpi,lirc-rpi";
++				pinctrl-names = "default";
++				pinctrl-0 = <&lirc_pins>;
++				status = "okay";
++
++				// Override autodetection of IR receiver circuit
++				// (0 = active high, 1 = active low, -1 = no override )
++				rpi,sense = <0xffffffff>;
++
++				// Software carrier
++				// (0 = off, 1 = on)
++				rpi,softcarrier = <1>;
++
++				// Invert output
++				// (0 = off, 1 = on)
++				rpi,invert = <0>;
++
++				// Enable debugging messages
++				// (0 = off, 1 = on)
++				rpi,debug = <0>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&gpio>;
++		__overlay__ {
++			lirc_pins: lirc_pins {
++				brcm,pins = <6 5>;
++				brcm,function = <1 0>; // out in
++				brcm,pull = <0 1>; // off down
++			};
++		};
++	};
++
++	__overrides__ {
++		speed =     <&rpidisplay>,"spi-max-frequency:0";
++		rotate =    <&rpidisplay>,"rotate:0";
++		fps =       <&rpidisplay>,"fps:0";
++		debug =     <&rpidisplay>,"debug:0", 
++		            <&lirc_rpi>,"rpi,debug:0";
++		xohms =     <&rpidisplay_ts>,"ti,x-plate-ohms;0";
++		swapxy =    <&rpidisplay_ts>,"ti,swap-xy?";
++		backlight = <&rpidisplay>,"led-gpios:4",
++		            <&rpi_display_pins>,"brcm,pins:0";
++
++		gpio_out_pin =  <&lirc_pins>,"brcm,pins:0";
++		gpio_in_pin =   <&lirc_pins>,"brcm,pins:4";
++		gpio_in_pull =  <&lirc_pins>,"brcm,pull:4";
++
++		sense =         <&lirc_rpi>,"rpi,sense:0";
++		softcarrier =   <&lirc_rpi>,"rpi,softcarrier:0";
++		invert =        <&lirc_rpi>,"rpi,invert:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/merus-amp-overlay.dts b/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
+new file mode 100644
+index 000000000000..4501fbdc253d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
+@@ -0,0 +1,60 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for Infineon Merus-Amp
++/dts-v1/;
++/plugin/;
++#include <dt-bindings/pinctrl/bcm2835.h>
++#include <dt-bindings/gpio/gpio.h>
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			merus_amp_pins: merus_amp_pins {
++				brcm,pins = <23>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <2>; /* up */
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			merus_amp: ma120x0p@20 {
++				#sound-dai-cells = <0>;
++				compatible = "ma,ma120x0p";
++				reg = <0x20>;
++				status = "okay";
++				pinctrl-names = "default";
++				pinctrl-0 = <&merus_amp_pins>;
++				enable_gp-gpios = <&gpio 14 GPIO_ACTIVE_HIGH>;
++				mute_gp-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>;
++				booster_gp-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
++				error_gp-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "merus,merus-amp";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
+new file mode 100644
+index 000000000000..f7e44d29e101
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
+@@ -0,0 +1,36 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			midi_clk: midi_clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-output-names = "uart0_pclk";
++				clock-frequency = <58982400>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&uart0>;
++		__overlay__ {
++			clocks = <&midi_clk>,
++			         <&clocks BCM2835_CLOCK_VPU>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/midi-uart1-overlay.dts b/arch/arm/boot/dts/overlays/midi-uart1-overlay.dts
+new file mode 100644
+index 000000000000..e0bc410acbff
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart1-overlay.dts
+@@ -0,0 +1,43 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835-aux.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/clocks";
++		__overlay__ {
++			midi_clk: clock@5 {
++				compatible = "fixed-factor-clock";
++				#clock-cells = <0>;
++				clocks = <&aux BCM2835_AUX_CLOCK_UART>;
++				clock-mult = <38400>;
++				clock-div  = <31250>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&uart1>;
++		__overlay__ {
++			clocks = <&midi_clk>;
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			clock-output-names = "aux_uart", "aux_spi1", "aux_spi2";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts b/arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts
+new file mode 100644
+index 000000000000..da49f14a0940
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/miniuart-bt-overlay.dts
+@@ -0,0 +1,93 @@
++/dts-v1/;
++/plugin/;
++
++/* Switch Pi3 Bluetooth function to use the mini-UART (ttyS0) and restore
++   UART0/ttyAMA0 over GPIOs 14 & 15. Note that this may reduce the maximum
++   usable baudrate.
++
++   It is also necessary to edit /lib/systemd/system/hciuart.service and
++   replace ttyAMA0 with ttyS0, unless you have a system with udev rules
++   that create /dev/serial0 and /dev/serial1, in which case use /dev/serial1
++   instead because it will always be correct.
++
++   If cmdline.txt uses the alias serial0 to refer to the user-accessable port
++   then the firmware will replace with the appropriate port whether or not
++   this overlay is used.
++*/
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&uart0>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart0_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&bt>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&uart1>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart1_pins &bt_pins &fake_bt_cts>;
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&uart0_pins>;
++		__overlay__ {
++			brcm,pins;
++			brcm,function;
++			brcm,pull;
++		};
++	};
++
++	fragment@4 {
++		target = <&uart1_pins>;
++		__overlay__ {
++			brcm,pins = <32 33>;
++			brcm,function = <2>; /* alt5=UART1 */
++			brcm,pull = <0 2>;
++		};
++	};
++
++	fragment@5 {
++		target = <&gpio>;
++		__overlay__ {
++			fake_bt_cts: fake_bt_cts {
++				brcm,pins = <31>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@6 {
++		target-path = "/aliases";
++		__overlay__ {
++			serial0 = "/soc/serial@7e201000";
++			serial1 = "/soc/serial@7e215040";
++		};
++	};
++
++	fragment@7 {
++		target = <&minibt>;
++		minibt_frag: __overlay__ {
++		};
++	};
++
++	__overrides__ {
++		krnbt = <&minibt_frag>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mmc-overlay.dts b/arch/arm/boot/dts/overlays/mmc-overlay.dts
+new file mode 100644
+index 000000000000..c1a2f691aa1e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
+@@ -0,0 +1,46 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&mmc>;
++		frag0: __overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&mmc_pins>;
++			bus-width = <4>;
++			brcm,overclock-50 = <0>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			mmc_pins: mmc_pins {
++				brcm,pins = <48 49 50 51 52 53>;
++				brcm,function = <7>; /* alt3 */
++				brcm,pull = <0 2 2 2 2 2>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sdhost>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&mmcnr>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	__overrides__ {
++		overclock_50     = <&frag0>,"brcm,overclock-50:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/mpu6050-overlay.dts b/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
+new file mode 100644
+index 000000000000..3109d90562ae
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
+@@ -0,0 +1,28 @@
++// Definitions for MPU6050
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&i2c1>;
++                __overlay__ {
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++                        status = "okay";
++                        clock-frequency = <400000>;
++
++                        mpu6050: mpu6050@68 {
++                                compatible = "invensense,mpu6050";
++                                reg = <0x68>;
++                                interrupt-parent = <&gpio>;
++                                interrupts = <4 1>;
++                        };
++                };
++        };
++
++        __overrides__ {
++                interrupt = <&mpu6050>,"interrupts:0";
++        };
++};
+diff --git a/arch/arm/boot/dts/overlays/mz61581-overlay.dts b/arch/arm/boot/dts/overlays/mz61581-overlay.dts
+new file mode 100644
+index 000000000000..6e00e8b2ddf2
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mz61581-overlay.dts
+@@ -0,0 +1,117 @@
++/*
++ * Device Tree overlay for MZ61581-PI-EXT 2014.12.28 by Tontec
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			mz61581_pins: mz61581_pins {
++				brcm,pins = <4 15 18 25>;
++				brcm,function = <0 1 1 1>; /* in out out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mz61581: mz61581@0{
++				compatible = "samsung,s6d02a1";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mz61581_pins>;
++
++				spi-max-frequency = <128000000>;
++				spi-cpol;
++				spi-cpha;
++
++				width = <320>;
++				height = <480>;
++				rotate = <270>;
++				bgr;
++				fps = <30>;
++				buswidth = <8>;
++				txbuflen = <32768>;
++
++				reset-gpios = <&gpio 15 1>;
++				dc-gpios = <&gpio 25 0>;
++				led-gpios = <&gpio 18 0>;
++
++				init = <0x10000b0 00
++					0x1000011
++					0x20000ff
++					0x10000b3 0x02 0x00 0x00 0x00
++					0x10000c0 0x13 0x3b 0x00 0x02 0x00 0x01 0x00 0x43
++					0x10000c1 0x08 0x16 0x08 0x08
++					0x10000c4 0x11 0x07 0x03 0x03
++					0x10000c6 0x00
++					0x10000c8 0x03 0x03 0x13 0x5c 0x03 0x07 0x14 0x08 0x00 0x21 0x08 0x14 0x07 0x53 0x0c 0x13 0x03 0x03 0x21 0x00
++					0x1000035 0x00
++					0x1000036 0xa0
++					0x100003a 0x55
++					0x1000044 0x00 0x01
++					0x10000d0 0x07 0x07 0x1d 0x03
++					0x10000d1 0x03 0x30 0x10
++					0x10000d2 0x03 0x14 0x04
++					0x1000029
++					0x100002c>;
++
++				/* This is a workaround to make sure the init sequence slows down and doesn't fail */
++				debug = <3>;
++			};
++
++			mz61581_ts: mz61581_ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <4 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 4 0>;
++
++				ti,x-plate-ohms = /bits/ 16 <60>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed =   <&mz61581>, "spi-max-frequency:0";
++		rotate =  <&mz61581>, "rotate:0";
++		fps =     <&mz61581>, "fps:0";
++		txbuflen = <&mz61581>, "txbuflen:0";
++		debug =   <&mz61581>, "debug:0";
++		xohms =   <&mz61581_ts>,"ti,x-plate-ohms;0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ov5647-overlay.dts b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
+new file mode 100644
+index 000000000000..fd1e7a457f69
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
+@@ -0,0 +1,92 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for OV5647 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ov5647: ov5647@36 {
++				compatible = "ovti,ov5647";
++				reg = <0x36>;
++				status = "okay";
++
++				pwdn-gpios = <&gpio 41 1>, <&gpio 32 1>;
++				clocks = <&ov5647_clk>;
++
++				rotation = <0>;
++
++				port {
++					ov5647_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <297000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&ov5647_0>;
++					data-lanes = <1 2>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&ov5647>,"pwdn-gpios:0";
++			cam0-pwdn      = <&ov5647>,"pwdn-gpios:4";
++			cam0-led-ctrl  = <&ov5647>,"pwdn-gpios:12";
++			cam0-led       = <&ov5647>,"pwdn-gpios:16";
++		};
++	};
++
++	fragment@5 {
++		target-path = "/";
++		__overlay__ {
++			ov5647_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <25000000>;
++			};
++		};
++	};
++
++	__overrides__ {
++		rotation = <&ov5647>,"rotation:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ov7251-overlay.dts b/arch/arm/boot/dts/overlays/ov7251-overlay.dts
+new file mode 100644
+index 000000000000..f04eafd4adf9
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ov7251-overlay.dts
+@@ -0,0 +1,111 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for OV7251 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ov7251: ov7251@60 {
++				compatible = "ovti,ov7251";
++				reg = <0x60>;
++				status = "okay";
++
++				clocks = <&ov7251_clk>;
++				clock-names = "xclk";
++				clock-frequency = <24000000>;
++
++				vdddo-supply = <&ov7251_dovdd>;
++				vdda-supply = <&ov7251_avdd>;
++				vddd-supply = <&ov7251_dvdd>;
++
++				enable-gpios = <&gpio 41 GPIO_ACTIVE_HIGH>;
++
++				port {
++					ov7251_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <456000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&ov7251_0>;
++					data-lanes = <1>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			ov7251_avdd: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov7251_avdd";
++				regulator-min-microvolt = <2800000>;
++				regulator-max-microvolt = <2800000>;
++			};
++			ov7251_dovdd: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov7251_dovdd";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			ov7251_dvdd: fixedregulator@2 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov7251_dvdd";
++				regulator-min-microvolt = <1200000>;
++				regulator-max-microvolt = <1200000>;
++			};
++			ov7251_clk: ov7251-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&ov7251>,"enable-gpios:0";
++			cam0-pwdn      = <&ov7251>,"enable-gpios:4";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ov9281-overlay.dts b/arch/arm/boot/dts/overlays/ov9281-overlay.dts
+new file mode 100644
+index 000000000000..40b298d3dd86
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ov9281-overlay.dts
+@@ -0,0 +1,111 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for OV9281 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ov9281: ov9281@60 {
++				compatible = "ovti,ov9281";
++				reg = <0x60>;
++				status = "okay";
++
++				clocks = <&ov9281_clk>;
++				clock-names = "xvclk";
++
++				avdd-supply = <&ov9281_avdd>;
++				dovdd-supply = <&ov9281_dovdd>;
++				dvdd-supply = <&ov9281_dvdd>;
++
++				port {
++					ov9281_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <400000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&ov9281_0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			ov9281_avdd: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov9281_avdd";
++				regulator-min-microvolt = <2800000>;
++				regulator-max-microvolt = <2800000>;
++				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++				enable-active-high;
++			};
++			ov9281_dovdd: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov9281_dovdd";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			ov9281_dvdd: fixedregulator@2 {
++				compatible = "regulator-fixed";
++				regulator-name = "ov9281_dvdd";
++				regulator-min-microvolt = <1200000>;
++				regulator-max-microvolt = <1200000>;
++			};
++			ov9281_clk: ov9281-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target-path="/__overrides__";
++		__overlay__ {
++			cam0-pwdn-ctrl = <&ov9281_avdd>,"gpio:0";
++			cam0-pwdn      = <&ov9281_avdd>,"gpio:4";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/overlay_map.dts b/arch/arm/boot/dts/overlays/overlay_map.dts
+new file mode 100644
+index 000000000000..22b0ad1738ec
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/overlay_map.dts
+@@ -0,0 +1,141 @@
++/dts-v1/;
++
++/ {
++	bmp085_i2c-sensor {
++		deprecated = "use i2c-sensor,bmp085";
++	};
++
++	highperi {
++		bcm2711;
++	};
++
++	i2c0-bcm2708 {
++		deprecated = "use i2c0";
++	};
++
++	i2c1-bcm2708 {
++		deprecated = "use i2c1";
++	};
++
++	i2c3 {
++		bcm2711;
++	};
++
++	i2c4 {
++		bcm2711;
++	};
++
++	i2c5 {
++		bcm2711;
++	};
++
++	i2c6 {
++		bcm2711;
++	};
++
++	lirc-rpi {
++		deprecated = "use gpio-ir";
++	};
++
++	pi3-act-led {
++		renamed = "act-led";
++	};
++
++	pi3-disable-bt {
++		renamed = "disable-bt";
++	};
++
++	pi3-disable-wifi {
++		renamed = "disable-wifi";
++	};
++
++	pi3-miniuart-bt {
++		renamed = "miniuart-bt";
++	};
++
++	rpivid-v4l2 {
++		bcm2711;
++	};
++
++	sdio-1bit {
++		deprecated = "use sdio,bus_width=1,gpios_22_25";
++	};
++
++	spi0-cs {
++		renamed = "spi0-2cs";
++	};
++
++	spi0-hw-cs {
++		deprecated = "no longer necessary";
++	};
++
++	spi3-1cs {
++		bcm2711;
++	};
++
++	spi3-2cs {
++		bcm2711;
++	};
++
++	spi4-1cs {
++		bcm2711;
++	};
++
++	spi4-2cs {
++		bcm2711;
++	};
++
++	spi5-1cs {
++		bcm2711;
++	};
++
++	spi5-2cs {
++		bcm2711;
++	};
++
++	spi6-1cs {
++		bcm2711;
++	};
++
++	spi6-2cs {
++		bcm2711;
++	};
++
++	uart2 {
++		bcm2711;
++	};
++
++	uart3 {
++		bcm2711;
++	};
++
++	uart4 {
++		bcm2711;
++	};
++
++	uart5 {
++		bcm2711;
++	};
++
++	upstream {
++		bcm2835;
++		bcm2711 = "upstream-pi4";
++	};
++
++	upstream-aux-interrupt {
++		deprecated = "no longer necessary";
++	};
++
++	upstream-pi4 {
++		bcm2711;
++	};
++
++	vc4-kms-v3d {
++		bcm2835;
++		bcm2711 = "vc4-kms-v3d-pi4";
++	};
++
++	vc4-kms-v3d-pi4 {
++		bcm2711;
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/papirus-overlay.dts b/arch/arm/boot/dts/overlays/papirus-overlay.dts
+new file mode 100644
+index 000000000000..7b6bcfd49c86
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/papirus-overlay.dts
+@@ -0,0 +1,89 @@
++/* PaPiRus ePaper Screen by Pi Supply */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			display_temp: lm75@48 {
++				compatible = "lm75b";
++				reg = <0x48>;
++				status = "okay";
++				#thermal-sensor-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			thermal-zones {
++				display {
++					polling-delay-passive = <0>;
++					polling-delay = <0>;
++					thermal-sensors = <&display_temp>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++
++			spidev@0{
++				status = "disabled";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			repaper_pins: repaper_pins {
++				brcm,pins = <14 15 23 24 25>;
++				brcm,function = <1 1 1 1 0>; /* out out out out in */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			repaper: repaper@0{
++				compatible = "not_set";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&repaper_pins>;
++
++				spi-max-frequency = <8000000>;
++
++				panel-on-gpios = <&gpio 23 0>;
++				border-gpios = <&gpio 14 0>;
++				discharge-gpios = <&gpio 15 0>;
++				reset-gpios = <&gpio 24 0>;
++				busy-gpios = <&gpio 25 0>;
++
++				repaper-thermal-zone = "display";
++			};
++		};
++	};
++
++	__overrides__ {
++		panel = <&repaper>, "compatible";
++		speed = <&repaper>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pca953x-overlay.dts b/arch/arm/boot/dts/overlays/pca953x-overlay.dts
+new file mode 100644
+index 000000000000..8b6ee44665ce
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pca953x-overlay.dts
+@@ -0,0 +1,240 @@
++// Definitions for NXP PCA953x family of I2C GPIO controllers on ARM I2C bus.
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca: pca@20 {
++				compatible = "nxp,pca9534";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca6416";
++		};
++	};
++	fragment@2 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9505";
++		};
++	};
++	fragment@3 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9535";
++		};
++	};
++	fragment@4 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9536";
++		};
++	};
++	fragment@5 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9537";
++		};
++	};
++	fragment@6 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9538";
++		};
++	};
++	fragment@7 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9539";
++		};
++	};
++	fragment@8 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9554";
++		};
++	};
++	fragment@9 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9555";
++		};
++	};
++	fragment@10 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9556";
++		};
++	};
++	fragment@11 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9557";
++		};
++	};
++	fragment@12 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9574";
++		};
++	};
++	fragment@13 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9575";
++		};
++	};
++	fragment@14 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca9698";
++		};
++	};
++	fragment@15 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca16416";
++		};
++	};
++	fragment@16 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca16524";
++		};
++	};
++	fragment@17 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "nxp,pca19555a";
++		};
++	};
++	fragment@18 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "maxim,max7310";
++		};
++	};
++	fragment@19 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "maxim,max7312";
++		};
++	};
++	fragment@20 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "maxim,max7313";
++		};
++	};
++	fragment@21 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "maxim,max7315";
++		};
++	};
++	fragment@22 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,pca6107";
++		};
++	};
++	fragment@23 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,tca6408";
++		};
++	};
++	fragment@24 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,tca6416";
++		};
++	};
++	fragment@25 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,tca6424";
++		};
++	};
++	fragment@26 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,tca9539";
++		};
++	};
++	fragment@27 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "ti,tca9554";
++		};
++	};
++	fragment@28 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "onnn,cat9554";
++		};
++	};
++	fragment@29 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "onnn,pca9654";
++		};
++	};
++	fragment@30 {
++		target = <&pca>;
++		__dormant__ {
++			compatible = "exar,xra1202";
++		};
++	};
++
++	__overrides__ {
++		addr = <&pca>,"reg:0";
++		pca6416 = <0>, "+1";
++		pca9505 = <0>, "+2";
++		pca9535 = <0>, "+3";
++		pca9536 = <0>, "+4";
++		pca9537 = <0>, "+5";
++		pca9538 = <0>, "+6";
++		pca9539 = <0>, "+7";
++		pca9554 = <0>, "+8";
++		pca9555 = <0>, "+9";
++		pca9556 = <0>, "+10";
++		pca9557 = <0>, "+11";
++		pca9574 = <0>, "+12";
++		pca9575 = <0>, "+13";
++		pca9698 = <0>, "+14";
++		pca16416 = <0>, "+15";
++		pca16524 = <0>, "+16";
++		pca19555a = <0>, "+17";
++		max7310 = <0>, "+18";
++		max7312 = <0>, "+19";
++		max7313 = <0>, "+20";
++		max7315 = <0>, "+21";
++		pca6107 = <0>, "+22";
++		tca6408 = <0>, "+23";
++		tca6416 = <0>, "+24";
++		tca6424 = <0>, "+25";
++		tca9539 = <0>, "+26";
++		tca9554 = <0>, "+27";
++		cat9554 = <0>, "+28";
++		pca9654 = <0>, "+29";
++		xra1202 = <0>, "+30";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pibell-overlay.dts b/arch/arm/boot/dts/overlays/pibell-overlay.dts
+new file mode 100644
+index 000000000000..9333a9b09772
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pibell-overlay.dts
+@@ -0,0 +1,81 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++        target-path = "/";
++        __overlay__ {
++            codec_out: spdif-transmitter {
++                #address-cells = <0>;
++                #size-cells = <0>;
++                #sound-dai-cells = <0>;
++                compatible = "linux,spdif-dit";
++                status = "okay";
++            };
++
++            codec_in: card-codec {
++                #sound-dai-cells = <0>;
++                compatible = "invensense,ics43432";
++                status = "okay";
++            };
++        };
++    };
++
++    fragment@1 {
++        target = <&i2s>;
++        __overlay__ {
++            #sound-dai-cells = <0>;
++            status = "okay";
++        };
++    };
++
++    fragment@2 {
++        target = <&sound>;
++        snd: __overlay__ {
++            compatible = "simple-audio-card";
++            simple-audio-card,name = "PiBell";
++
++            status="okay";
++
++            capture_link: simple-audio-card,dai-link@0 {
++                format = "i2s";
++
++                r_cpu_dai: cpu {
++                    sound-dai = <&i2s>;
++
++/* example TDM slot configuration
++                    dai-tdm-slot-num = <2>;
++                    dai-tdm-slot-width = <32>;
++*/
++                };
++
++                r_codec_dai: codec {
++                    sound-dai = <&codec_in>;
++                };
++            };
++
++            playback_link: simple-audio-card,dai-link@1 {
++                format = "i2s";
++
++                p_cpu_dai: cpu {
++                    sound-dai = <&i2s>;
++
++/* example TDM slot configuration
++                    dai-tdm-slot-num = <2>;
++                    dai-tdm-slot-width = <32>;
++*/
++                };
++
++                p_codec_dai: codec {
++                    sound-dai = <&codec_out>;
++                };
++            };
++        };
++    };
++
++    __overrides__ {
++        alsaname = <&snd>, "simple-audio-card,name";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/pifacedigital-overlay.dts b/arch/arm/boot/dts/overlays/pifacedigital-overlay.dts
+new file mode 100644
+index 000000000000..532a858683d6
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pifacedigital-overlay.dts
+@@ -0,0 +1,144 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * PiFace Digital, Device Tree Overlay.
++ * Copyright (C) 2020 Thomas Preston <thomas.preston@codethink.co.uk>
++ *
++ * The PiFace Digital is a convenient breakout board for the Microchip mcp23s17
++ * SPI GPIO port expander.
++ *
++ * The first eight GPIOs 0..7 (bank A) are connected to eight output terminals
++ * and LEDs, plus two relays on the first two outputs. These output loads are
++ * active-high.
++ *
++ * The next eight GPIOs 8..15 (bank B) are connected to eight input terminals
++ * with four on-board switches connecting them to ground. Inputs devices are
++ * therefore expected to bridge terminals to ground, so the mcp23s17 pullups are
++ * activated for GPIO bank B.
++ *
++ * On PiFace Digital, the mcp23s17 is connected to the Raspberry Pi's SPI0 CS0
++ * bus. Each SPI bus supports up to eight addressable child devices. The PiFace
++ * Digital only supports addresses 0-4, which can be configured by jumpers JP1
++ * and JP2.
++ *
++ * You can tell the driver about these jumper configurations with the
++ * spi-present-mask bitmask:
++ *
++ *     | JP1 | JP2 | dtoverlay line in /boot/config.txt         |
++ *     | --- | --- | ------------------------------------------ |
++ *     |  0  |  0  | dtoverlay=pifacedigital                    |
++ *     |  0  |  0  | dtoverlay=pifacedigital:spi-present-mask=1 |
++ *     |  0  |  1  | dtoverlay=pifacedigital:spi-present-mask=2 |
++ *     |  1  |  0  | dtoverlay=pifacedigital:spi-present-mask=4 |
++ *     |  1  |  1  | dtoverlay=pifacedigital:spi-present-mask=8 |
++ *
++ * # Example
++ * Set the dtoverlay config in /boot/config.txt and power off the Raspberry Pi:
++ *
++ *     $ grep pifacedigital /boot/config.txt
++ *     dtoverlay=pifacedigital
++ *     $ sudo systemctl poweroff
++ *
++ * Attach the PiFace Digital and power on the Raspberry Pi.
++ * Then use the libgpiod tools to query the device:
++ *
++ *     $ sudo apt install gpiod
++ *     $ gpiodetect | grep mcp23s17
++ *     gpiochip2 [mcp23s17.0] (16 lines)
++ *
++ * Set GPIO outputs 0, 2 and 5:
++ *
++ *     $ gpioset gpiochip2 0=1 2=1 5=1
++ *
++ * Get GPIO status (input GPIO 8..15 are high, because they are active-low):
++ *
++ *     $ gpioget gpiochip2 {8..15}
++ *     1 1 1 1 1 1 1 1
++ *
++ * And even monitor interrupts:
++ *
++ *     $ gpiomon gpiochip2 {8..15}
++ *     event: FALLING EDGE offset: 11 timestamp: [1597361662.926741667]
++ *     event:  RISING EDGE offset: 11 timestamp: [1597361663.062555051]
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	/* Disable exposing /dev/spidev0.0 */
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	/* Add the PiFace Digital device node to the spi0.0 device. */
++	fragment@1 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pfdigital: pifacedigital@0 {
++				compatible = "microchip,mcp23s17";
++				reg = <0>;
++
++				/* Set devices present with 8-bit mask. */
++				microchip,spi-present-mask = <0x01>;
++				spi-max-frequency = <500000>;
++
++				gpio-controller;
++				#gpio-cells = <2>;
++
++				/* This device can pass through interrupts. */
++				interrupt-controller;
++				#interrupt-cells = <2>;
++
++				/* INTB is connected to GPIO 25.
++				 * 0x8 active-low level-sensitive
++				 */
++				interrupts = <25 0x8>;
++				interrupt-parent = <&gpio>;
++
++				/* Configure pull-ups on bank B GPIOs */
++				pinctrl-0 = <&pfdigital_irq &pfdigital_pullups>;
++				pinctrl-names = "default";
++				pfdigital_pullups: pinmux {
++					pins =
++						"gpio8",
++						"gpio9",
++						"gpio10",
++						"gpio11",
++						"gpio12",
++						"gpio13",
++						"gpio14",
++						"gpio15";
++					bias-pull-up;
++				};
++			};
++		};
++	};
++
++	/* PiFace Digital mcp23s17 INTB pin is connected to GPIO 25. The INTB
++	 * pin is configured active-low (0 on interrupt), so expect to see
++	 * FALLING_EDGE when inputs are bridged to ground (switch is pressed).
++	 */
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			pfdigital_irq: pifacedigital_irq {
++				brcm,pins = <25>;
++				brcm,function = <0>; /* input */
++			};
++		};
++	};
++
++	__overrides__ {
++		spi-present-mask = <&pfdigital>, "microchip,spi-present-mask:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/piglow-overlay.dts b/arch/arm/boot/dts/overlays/piglow-overlay.dts
+new file mode 100644
+index 000000000000..075bceef158c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/piglow-overlay.dts
+@@ -0,0 +1,97 @@
++// Definitions for SN3218 LED driver from Si-En Technology on PiGlow
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sn3218@54 {
++				compatible = "si-en,sn3218";
++				reg = <0x54>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++				status = "okay";
++
++				led@1 {
++					reg = <1>;
++					label = "piglow:red:led1";
++				};
++				led@2 {
++					reg = <2>;
++					label = "piglow:orange:led2";
++				};
++				led@3 {
++					reg = <3>;
++					label = "piglow:yellow:led3";
++				};
++				led@4 {
++					reg = <4>;
++					label = "piglow:green:led4";
++				};
++				led@5 {
++					reg = <5>;
++					label = "piglow:blue:led5";
++				};
++				led@6 {
++					reg = <6>;
++					label = "piglow:green:led6";
++				};
++				led@7 {
++					reg = <7>;
++					label = "piglow:red:led7";
++				};
++				led@8 {
++					reg = <8>;
++					label = "piglow:orange:led8";
++				};
++				led@9 {
++					reg = <9>;
++					label = "piglow:yellow:led9";
++				};
++				led@10 {
++					reg = <10>;
++					label = "piglow:white:led10";
++				};
++				led@11 {
++					reg = <11>;
++					label = "piglow:white:led11";
++				};
++				led@12 {
++					reg = <12>;
++					label = "piglow:blue:led12";
++				};
++				led@13 {
++					reg = <13>;
++					label = "piglow:white:led13";
++				};
++				led@14 {
++					reg = <14>;
++					label = "piglow:green:led14";
++				};
++				led@15 {
++					reg = <15>;
++					label = "piglow:blue:led15";
++				};
++				led@16 {
++					reg = <16>;
++					label = "piglow:yellow:led16";
++				};
++				led@17 {
++					reg = <17>;
++					label = "piglow:orange:led17";
++				};
++				led@18 {
++					reg = <18>;
++					label = "piglow:red:led18";
++				};
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/piscreen-overlay.dts b/arch/arm/boot/dts/overlays/piscreen-overlay.dts
+new file mode 100644
+index 000000000000..1ac75a248fab
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/piscreen-overlay.dts
+@@ -0,0 +1,102 @@
++/*
++ * Device Tree overlay for PiScreen 3.5" display shield by Ozzmaker
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			piscreen_pins: piscreen_pins {
++				brcm,pins = <17 25 24 22>;
++				brcm,function = <0 1 1 1>; /* in out out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			piscreen: piscreen@0{
++				compatible = "ilitek,ili9486";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&piscreen_pins>;
++
++				spi-max-frequency = <24000000>;
++				rotate = <270>;
++				bgr;
++				fps = <30>;
++				buswidth = <8>;
++				regwidth = <16>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 22 0>;
++				debug = <0>;
++
++				init = <0x10000b0 0x00
++				        0x1000011
++					0x20000ff
++					0x100003a 0x55
++					0x1000036 0x28
++					0x10000c2 0x44
++					0x10000c5 0x00 0x00 0x00 0x00
++					0x10000e0 0x0f 0x1f 0x1c 0x0c 0x0f 0x08 0x48 0x98 0x37 0x0a 0x13 0x04 0x11 0x0d 0x00
++					0x10000e1 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
++					0x10000e2 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
++					0x1000011
++					0x1000029>;
++			};
++
++			piscreen_ts: piscreen-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <17 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 17 0>;
++				ti,swap-xy;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed =		<&piscreen>,"spi-max-frequency:0";
++		rotate =	<&piscreen>,"rotate:0";
++		fps =		<&piscreen>,"fps:0";
++		debug =		<&piscreen>,"debug:0";
++		xohms =		<&piscreen_ts>,"ti,x-plate-ohms;0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts b/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts
+new file mode 100644
+index 000000000000..9d2b51101969
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/piscreen2r-overlay.dts
+@@ -0,0 +1,106 @@
++ /*
++ * Device Tree overlay for PiScreen2 3.5" TFT with resistive touch  by Ozzmaker.com
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			piscreen2_pins: piscreen2_pins {
++				brcm,pins = <17 25 24 22>;
++				brcm,function = <0 1 1 1>; /* in out out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			piscreen2: piscreen2@0{
++				compatible = "ilitek,ili9486";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&piscreen2_pins>;
++				bgr;
++				spi-max-frequency = <64000000>;
++				rotate = <90>;
++				fps = <30>;
++				buswidth = <8>;
++				regwidth = <16>;
++				txbuflen = <32768>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 22 0>;
++				debug = <0>;
++
++                                init = <0x10000b0 0x00
++                                        0x1000011
++                                        0x20000ff
++                                        0x100003a 0x55
++                                        0x1000036 0x28
++                                        0x10000c0 0x11 0x09
++                                        0x10000c1 0x41
++                                        0x10000c5 0x00 0x00 0x00 0x00
++                                        0x10000b6 0x00 0x02
++                                        0x10000f7 0xa9 0x51 0x2c 0x2
++                                        0x10000be 0x00 0x04
++                                        0x10000e9 0x00
++                                        0x1000011
++                                        0x1000029>;
++
++			};
++
++			piscreen2_ts: piscreen2-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <17 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 17 0>;
++				ti,swap-xy;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed =		<&piscreen2>,"spi-max-frequency:0";
++		rotate =	<&piscreen2>,"rotate:0";
++		fps =		<&piscreen2>,"fps:0";
++		debug =		<&piscreen2>,"debug:0";
++		xohms =		<&piscreen2_ts>,"ti,x-plate-ohms;0";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/pisound-overlay.dts b/arch/arm/boot/dts/overlays/pisound-overlay.dts
+new file mode 100644
+index 000000000000..49efb2b768fb
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pisound-overlay.dts
+@@ -0,0 +1,120 @@
++/*
++ * Pisound Linux kernel module.
++ * Copyright (C) 2016-2017  Vilniaus Blokas UAB, https://blokas.io/pisound
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; version 2 of the
++ * License.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&spi0>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pisound_spi: pisound_spi@0{
++				compatible = "blokaslabs,pisound-spi";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&spi0_pins>;
++				spi-max-frequency = <1000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target-path = "/";
++		__overlay__ {
++			pcm5102a-codec {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5102a";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "blokaslabs,pisound";
++			i2s-controller = <&i2s>;
++			status = "okay";
++
++			pinctrl-0 = <&pisound_button_pins>;
++
++			osr-gpios =
++				<&gpio 13 GPIO_ACTIVE_HIGH>,
++				<&gpio 26 GPIO_ACTIVE_HIGH>,
++				<&gpio 16 GPIO_ACTIVE_HIGH>;
++
++			reset-gpios =
++				<&gpio 12 GPIO_ACTIVE_HIGH>,
++				<&gpio 24 GPIO_ACTIVE_HIGH>;
++
++			data_available-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
++
++			button-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	fragment@6 {
++		target = <&gpio>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&pisound_button_pins>;
++
++			pisound_button_pins: pisound_button_pins {
++				brcm,pins = <17>;
++				brcm,function = <0>; // Input
++				brcm,pull = <2>; // Pull-Up
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pitft22-overlay.dts b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
+new file mode 100644
+index 000000000000..589ad13795b1
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pitft22-overlay.dts
+@@ -0,0 +1,69 @@
++/*
++ * Device Tree overlay for pitft by Adafruit
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&spi0>;
++                __overlay__ {
++                        status = "okay";
++
++                        spidev@0{
++                                status = "disabled";
++                        };
++
++                        spidev@1{
++                                status = "disabled";
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&gpio>;
++                __overlay__ {
++                        pitft_pins: pitft_pins {
++                                brcm,pins = <25>;
++                                brcm,function = <1>; /* out */
++                                brcm,pull = <0>; /* none */
++                        };
++                };
++        };
++
++        fragment@2 {
++                target = <&spi0>;
++                __overlay__ {
++                        /* needed to avoid dtc warning */
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++
++                        pitft: pitft@0{
++                                compatible = "ilitek,ili9340";
++                                reg = <0>;
++                                pinctrl-names = "default";
++                                pinctrl-0 = <&pitft_pins>;
++
++                                spi-max-frequency = <32000000>;
++                                rotate = <90>;
++                                fps = <25>;
++                                bgr;
++                                buswidth = <8>;
++                                dc-gpios = <&gpio 25 0>;
++                                debug = <0>;
++                        };
++
++                };
++        };
++
++        __overrides__ {
++                speed =   <&pitft>,"spi-max-frequency:0";
++                rotate =  <&pitft>,"rotate:0";
++                fps =     <&pitft>,"fps:0";
++                debug =   <&pitft>,"debug:0";
++        };
++};
+diff --git a/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts
+new file mode 100644
+index 000000000000..33901ee1db7a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pitft28-capacitive-overlay.dts
+@@ -0,0 +1,91 @@
++/*
++ * Device Tree overlay for Adafruit PiTFT 2.8" capacitive touch screen
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&spi0>;
++                __overlay__ {
++                        status = "okay";
++                };
++        };
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++        fragment@2 {
++                target = <&gpio>;
++                __overlay__ {
++                        pitft_pins: pitft_pins {
++                                brcm,pins = <24 25>;
++                                brcm,function = <0 1>; /* in out */
++                                brcm,pull = <2 0>; /* pullup none */
++                        };
++                };
++        };
++
++        fragment@3 {
++                target = <&spi0>;
++                __overlay__ {
++                        /* needed to avoid dtc warning */
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++
++                        pitft: pitft@0{
++                                compatible = "ilitek,ili9340";
++                                reg = <0>;
++                                pinctrl-names = "default";
++                                pinctrl-0 = <&pitft_pins>;
++
++                                spi-max-frequency = <32000000>;
++                                rotate = <90>;
++                                fps = <25>;
++                                bgr;
++                                buswidth = <8>;
++                                dc-gpios = <&gpio 25 0>;
++                                debug = <0>;
++                        };
++                };
++        };
++
++        fragment@4 {
++                target = <&i2c1>;
++                __overlay__ {
++                        /* needed to avoid dtc warning */
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++
++                        ft6236: ft6236@38 {
++                                compatible = "focaltech,ft6236";
++                                reg = <0x38>;
++
++                                interrupt-parent = <&gpio>;
++                                interrupts = <24 2>;
++                                touchscreen-size-x = <240>;
++                                touchscreen-size-y = <320>;
++                        };
++                };
++        };
++
++        __overrides__ {
++                speed =   <&pitft>,"spi-max-frequency:0";
++                rotate =  <&pitft>,"rotate:0";
++                fps =     <&pitft>,"fps:0";
++                debug =   <&pitft>,"debug:0";
++                touch-sizex = <&ft6236>,"touchscreen-size-x?";
++                touch-sizey = <&ft6236>,"touchscreen-size-y?";
++                touch-invx  = <&ft6236>,"touchscreen-inverted-x?";
++                touch-invy  = <&ft6236>,"touchscreen-inverted-y?";
++                touch-swapxy = <&ft6236>,"touchscreen-swapped-x-y?";
++        };
++};
+diff --git a/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts b/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts
+new file mode 100644
+index 000000000000..4a4a3f44c29d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts
+@@ -0,0 +1,119 @@
++/*
++ * Device Tree overlay for Adafruit PiTFT 2.8" resistive touch screen
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			pitft_pins: pitft_pins {
++				brcm,pins = <24 25>;
++				brcm,function = <0 1>; /* in out */
++				brcm,pull = <2 0>; /* pullup none */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pitft: pitft@0{
++				compatible = "ilitek,ili9340";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&pitft_pins>;
++
++				spi-max-frequency = <32000000>;
++				rotate = <90>;
++				fps = <25>;
++				bgr;
++				buswidth = <8>;
++				dc-gpios = <&gpio 25 0>;
++				debug = <0>;
++			};
++
++			pitft_ts@1 {
++				compatible = "st,stmpe610";
++				reg = <1>;
++
++				spi-max-frequency = <500000>;
++				irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */
++				interrupts = <24 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				interrupt-controller;
++
++				stmpe_touchscreen {
++					compatible = "st,stmpe-ts";
++					st,sample-time = <4>;
++					st,mod-12b = <1>;
++					st,ref-sel = <0>;
++					st,adc-freq = <2>;
++					st,ave-ctrl = <3>;
++					st,touch-det-delay = <4>;
++					st,settling = <2>;
++					st,fraction-z = <7>;
++					st,i-drive = <0>;
++				};
++
++				stmpe_gpio: stmpe_gpio {
++					#gpio-cells = <2>;
++					compatible = "st,stmpe-gpio";
++					/*
++					 * only GPIO2 is wired/available
++					 * and it is wired to the backlight
++					 */
++					st,norequest-mask = <0x7b>;
++				};
++			};
++		};
++	};
++
++	fragment@5 {
++		target-path = "/soc";
++		__overlay__ {
++			backlight {
++				compatible = "gpio-backlight";
++				gpios = <&stmpe_gpio 2 0>;
++				default-on;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed =   <&pitft>,"spi-max-frequency:0";
++		rotate =  <&pitft>,"rotate:0";
++		fps =     <&pitft>,"fps:0";
++		debug =   <&pitft>,"debug:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts
+new file mode 100644
+index 000000000000..37629f18a740
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pitft35-resistive-overlay.dts
+@@ -0,0 +1,119 @@
++/*
++ * Device Tree overlay for Adafruit PiTFT 3.5" resistive touch screen
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			pitft_pins: pitft_pins {
++				brcm,pins = <24 25>;
++				brcm,function = <0 1>; /* in out */
++				brcm,pull = <2 0>; /* pullup none */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pitft: pitft@0{
++				compatible = "himax,hx8357d", "adafruit,yx350hv15";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&pitft_pins>;
++
++				spi-max-frequency = <32000000>;
++				rotate = <90>;
++				fps = <25>;
++				bgr;
++				buswidth = <8>;
++				dc-gpios = <&gpio 25 0>;
++				debug = <0>;
++			};
++
++			pitft_ts@1 {
++				compatible = "st,stmpe610";
++				reg = <1>;
++
++				spi-max-frequency = <500000>;
++				irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */
++				interrupts = <24 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				interrupt-controller;
++
++				stmpe_touchscreen {
++					compatible = "st,stmpe-ts";
++					st,sample-time = <4>;
++					st,mod-12b = <1>;
++					st,ref-sel = <0>;
++					st,adc-freq = <2>;
++					st,ave-ctrl = <3>;
++					st,touch-det-delay = <4>;
++					st,settling = <2>;
++					st,fraction-z = <7>;
++					st,i-drive = <0>;
++				};
++
++				stmpe_gpio: stmpe_gpio {
++					#gpio-cells = <2>;
++					compatible = "st,stmpe-gpio";
++					/*
++					 * only GPIO2 is wired/available
++					 * and it is wired to the backlight
++					 */
++					st,norequest-mask = <0x7b>;
++				};
++			};
++		};
++	};
++
++	fragment@5 {
++		target-path = "/soc";
++		__overlay__ {
++			backlight {
++				compatible = "gpio-backlight";
++				gpios = <&stmpe_gpio 2 0>;
++				default-on;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed =   <&pitft>,"spi-max-frequency:0";
++		rotate =  <&pitft>,"rotate:0";
++		fps =     <&pitft>,"fps:0";
++		debug =   <&pitft>,"debug:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
+new file mode 100644
+index 000000000000..524a1c1d3670
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			pps: pps@12 {
++				compatible = "pps-gpio";
++				pinctrl-names = "default";
++				pinctrl-0 = <&pps_pins>;
++				gpios = <&gpio 18 0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			pps_pins: pps_pins@12 {
++				brcm,pins =     <18>;
++				brcm,function = <0>;    // in
++				brcm,pull =     <0>;    // off
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin = <&pps>,"gpios:4",
++			  <&pps>,"reg:0",
++			  <&pps_pins>,"brcm,pins:0",
++			  <&pps_pins>,"reg:0";
++		assert_falling_edge = <&pps>,"assert-falling-edge?";
++		capture_clear = <&pps>,"capture-clear?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts b/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts
+new file mode 100644
+index 000000000000..4ddbbfa04065
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pwm-2chan-overlay.dts
+@@ -0,0 +1,49 @@
++/dts-v1/;
++/plugin/;
++
++/*
++This is the 2-channel overlay - only use it if you need both channels.
++
++Legal pin,function combinations for each channel:
++  PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0)            52,5(Alt1)
++  PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1)
++
++N.B.:
++  1) Pin 18 is the only one available on all platforms, and
++     it is the one used by the I2S audio interface.
++     Pins 12 and 13 might be better choices on an A+, B+ or Pi2.
++  2) The onboard analogue audio output uses both PWM channels.
++  3) So be careful mixing audio and PWM.
++*/
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			pwm_pins: pwm_pins {
++				brcm,pins = <18 19>;
++				brcm,function = <2 2>; /* Alt5 */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&pwm>;
++		frag1: __overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&pwm_pins>;
++			assigned-clock-rates = <100000000>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		pin   = <&pwm_pins>,"brcm,pins:0";
++		pin2  = <&pwm_pins>,"brcm,pins:4";
++		func  = <&pwm_pins>,"brcm,function:0";
++		func2 = <&pwm_pins>,"brcm,function:4";
++		clock = <&frag1>,"assigned-clock-rates:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pwm-ir-tx-overlay.dts b/arch/arm/boot/dts/overlays/pwm-ir-tx-overlay.dts
+new file mode 100644
+index 000000000000..119caf746b3b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pwm-ir-tx-overlay.dts
+@@ -0,0 +1,40 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			pwm0_pins: pwm0_pins {
++				brcm,pins = <18>;
++				brcm,function = <2>; /* Alt5 */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&pwm>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&pwm0_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			pwm-ir-transmitter {
++				compatible = "pwm-ir-tx";
++				pwms = <&pwm 0 100>;
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio_pin = <&pwm0_pins>, "brcm,pins:0";
++		func = <&pwm0_pins>,"brcm,function:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/pwm-overlay.dts b/arch/arm/boot/dts/overlays/pwm-overlay.dts
+new file mode 100644
+index 000000000000..92876ab3bc8c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pwm-overlay.dts
+@@ -0,0 +1,45 @@
++/dts-v1/;
++/plugin/;
++
++/*
++Legal pin,function combinations for each channel:
++  PWM0: 12,4(Alt0) 18,2(Alt5) 40,4(Alt0)            52,5(Alt1)
++  PWM1: 13,4(Alt0) 19,2(Alt5) 41,4(Alt0) 45,4(Alt0) 53,5(Alt1)
++
++N.B.:
++  1) Pin 18 is the only one available on all platforms, and
++     it is the one used by the I2S audio interface.
++     Pins 12 and 13 might be better choices on an A+, B+ or Pi2.
++  2) The onboard analogue audio output uses both PWM channels.
++  3) So be careful mixing audio and PWM.
++*/
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			pwm_pins: pwm_pins {
++				brcm,pins = <18>;
++				brcm,function = <2>; /* Alt5 */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&pwm>;
++		frag1: __overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&pwm_pins>;
++			assigned-clock-rates = <100000000>;
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		pin   = <&pwm_pins>,"brcm,pins:0";
++		func  = <&pwm_pins>,"brcm,function:0";
++		clock = <&frag1>,"assigned-clock-rates:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/qca7000-overlay.dts b/arch/arm/boot/dts/overlays/qca7000-overlay.dts
+new file mode 100644
+index 000000000000..9a451202a2eb
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/qca7000-overlay.dts
+@@ -0,0 +1,55 @@
++// Overlay for the Qualcomm Atheros QCA7000 on I2SE's PLC Stamp micro EVK
++// Visit: https://www.i2se.com/product/plc-stamp-micro-evk for details
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			eth1: qca7000@0 {
++				compatible = "qca,qca7000";
++				reg = <0>; /* CE0 */
++				pinctrl-names = "default";
++				pinctrl-0 = <&eth1_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <23 0x1>; /* rising edge */
++				spi-max-frequency = <12000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			eth1_pins: eth1_pins {
++				brcm,pins = <23>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <0>; /* none */
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&eth1>, "interrupts:0",
++		          <&eth1_pins>, "brcm,pins:0";
++		speed   = <&eth1>, "spi-max-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts b/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts
+new file mode 100644
+index 000000000000..ea1d952734e9
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rotary-encoder-overlay.dts
+@@ -0,0 +1,59 @@
++// Device tree overlay for GPIO connected rotary encoder.
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			rotary_pins: rotary_pins@4 {
++				brcm,pins = <4 17>; /* gpio 4 17 */
++				brcm,function = <0 0>; /* input */
++				brcm,pull = <2 2>; /* pull-up */
++			};
++
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			rotary: rotary@4 {
++				compatible = "rotary-encoder";
++				status = "okay";
++				pinctrl-names = "default";
++				pinctrl-0 = <&rotary_pins>;
++				gpios = <&gpio 4 0>, <&gpio 17 0>;
++				linux,axis = <0>; /* REL_X */
++				rotary-encoder,encoding = "gray";
++				rotary-encoder,steps = <24>; /* 24 default */
++				rotary-encoder,steps-per-period = <1>; /* corresponds to full period mode. See README */
++			};
++		};
++
++	};  
++
++	__overrides__ {
++		pin_a =		    <&rotary>,"gpios:4",
++				    <&rotary_pins>,"brcm,pins:0",
++				    /* modify reg values to allow multiple instantiation */
++				    <&rotary>,"reg:0",
++				    <&rotary_pins>,"reg:0";
++		pin_b =		    <&rotary>,"gpios:16",
++				    <&rotary_pins>,"brcm,pins:4";
++		relative_axis =     <&rotary>,"rotary-encoder,relative-axis?";
++		linux_axis =        <&rotary>,"linux,axis:0";
++		rollover =          <&rotary>,"rotary-encoder,rollover?";
++		steps-per-period =  <&rotary>,"rotary-encoder,steps-per-period:0";
++		steps =             <&rotary>,"rotary-encoder,steps:0";
++		wakeup =            <&rotary>,"wakeup-source?";
++		encoding =          <&rotary>,"rotary-encoder,encoding";
++                /* legacy parameters*/
++		rotary0_pin_a =     <&rotary>,"gpios:4",
++		                    <&rotary_pins>,"brcm,pins:0";
++		rotary0_pin_b =     <&rotary>,"gpios:16",
++		                    <&rotary_pins>,"brcm,pins:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts b/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts
+new file mode 100644
+index 000000000000..cac5e44c6ec5
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-backlight-overlay.dts
+@@ -0,0 +1,21 @@
++/*
++ * Devicetree overlay for mailbox-driven Raspberry Pi DSI Display
++ * backlight controller
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			rpi_backlight: rpi_backlight {
++				compatible = "raspberrypi,rpi-backlight";
++				firmware = <&firmware>;
++				status = "okay";
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts b/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts
+new file mode 100644
+index 000000000000..ed0c2745399f
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-cirrus-wm5102-overlay.dts
+@@ -0,0 +1,172 @@
++// Definitions for the Cirrus Logic Audio Card
++/dts-v1/;
++/plugin/;
++#include <dt-bindings/pinctrl/bcm2835.h>
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/mfd/arizona.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			wlf_5102_pins: wlf_5102_pins {
++				brcm,pins = <17 22 27>;
++				brcm,function = <
++					BCM2835_FSEL_GPIO_OUT
++					BCM2835_FSEL_GPIO_OUT
++					BCM2835_FSEL_GPIO_IN
++				>;
++			};
++			wlf_8804_pins: wlf_8804_pins {
++				brcm,pins = <8>;
++				brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0_cs_pins>;
++		__overlay__ {
++			brcm,pins = <7>;
++			brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++		};
++	};
++
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			rpi_cirrus_reg_1v8: rpi_cirrus_reg_1v8 {
++				compatible = "regulator-fixed";
++				regulator-name = "RPi-Cirrus 1v8";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++				regulator-always-on;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target = <&spi0>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++			cs-gpios = <&gpio 7 GPIO_ACTIVE_LOW>;
++
++			wm5102@0{
++				compatible = "wlf,wm5102";
++				reg = <0>;
++
++				pinctrl-names = "default";
++				pinctrl-0 = <&wlf_5102_pins>;
++
++				spi-max-frequency = <500000>;
++
++				interrupt-parent = <&gpio>;
++				interrupts = <27 8>;
++				interrupt-controller;
++				#interrupt-cells = <2>;
++
++				gpio-controller;
++				#gpio-cells = <2>;
++
++				LDOVDD-supply = <&rpi_cirrus_reg_1v8>;
++				AVDD-supply = <&rpi_cirrus_reg_1v8>;
++				DBVDD1-supply = <&rpi_cirrus_reg_1v8>;
++				DBVDD2-supply = <&vdd_3v3_reg>;
++				DBVDD3-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&rpi_cirrus_reg_1v8>;
++				SPKVDDL-supply = <&vdd_5v0_reg>;
++				SPKVDDR-supply = <&vdd_5v0_reg>;
++				DCVDD-supply = <&arizona_ldo1>;
++
++				reset-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
++				wlf,ldoena = <&gpio 22 GPIO_ACTIVE_HIGH>;
++				wlf,gpio-defaults = <
++					ARIZONA_GP_DEFAULT
++					ARIZONA_GP_DEFAULT
++					ARIZONA_GP_DEFAULT
++					ARIZONA_GP_DEFAULT
++					ARIZONA_GP_DEFAULT
++				>;
++				wlf,micd-configs = <0 1 0>;
++				wlf,dmic-ref = <
++					ARIZONA_DMIC_MICVDD
++					ARIZONA_DMIC_MICBIAS2
++					ARIZONA_DMIC_MICVDD
++					ARIZONA_DMIC_MICVDD
++				>;
++				wlf,inmode = <
++					ARIZONA_INMODE_DIFF
++					ARIZONA_INMODE_DMIC
++					ARIZONA_INMODE_SE
++					ARIZONA_INMODE_DIFF
++				>;
++				status = "okay";
++
++				arizona_ldo1: ldo1 {
++					regulator-name = "LDO1";
++					// default constraints as in
++					// arizona-ldo1.c
++					regulator-min-microvolt = <1200000>;
++					regulator-max-microvolt = <1800000>;
++				};
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2c1>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			wm8804@3b {
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				status = "okay";
++
++				pinctrl-names = "default";
++				pinctrl-0 = <&wlf_8804_pins>;
++
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				wlf,reset-gpio = <&gpio 8 GPIO_ACTIVE_HIGH>;
++			};
++		};
++	};
++
++	fragment@8 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "wlf,rpi-cirrus";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
+new file mode 100644
+index 000000000000..07a915342702
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
+@@ -0,0 +1,34 @@
++// Definitions for RPi DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			pcm1794a-codec {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm1794a";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "rpi,rpi-dac";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-display-overlay.dts b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
+new file mode 100644
+index 000000000000..de87432ff2be
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
+@@ -0,0 +1,91 @@
++/*
++ * Device Tree overlay for rpi-display by Watterott
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			rpi_display_pins: rpi_display_pins {
++				brcm,pins = <18 23 24 25>;
++				brcm,function = <1 1 1 0>; /* out out out in */
++				brcm,pull = <0 0 0 2>; /* - - - up */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			rpidisplay: rpi-display@0{
++				compatible = "ilitek,ili9341";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&rpi_display_pins>;
++
++				spi-max-frequency = <32000000>;
++				rotate = <270>;
++				bgr;
++				fps = <30>;
++				buswidth = <8>;
++				reset-gpios = <&gpio 23 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 18 0>;
++				debug = <0>;
++			};
++
++			rpidisplay_ts: rpi-display-ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++
++				spi-max-frequency = <2000000>;
++				interrupts = <25 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 25 1>;
++				ti,x-plate-ohms = /bits/ 16 <60>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++	__overrides__ {
++		speed =     <&rpidisplay>,"spi-max-frequency:0";
++		rotate =    <&rpidisplay>,"rotate:0";
++		fps =       <&rpidisplay>,"fps:0";
++		debug =     <&rpidisplay>,"debug:0";
++		xohms =     <&rpidisplay_ts>,"ti,x-plate-ohms;0";
++		swapxy =    <&rpidisplay_ts>,"ti,swap-xy?";
++		backlight = <&rpidisplay>,"led-gpios:4",
++		            <&rpi_display_pins>,"brcm,pins:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts b/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts
+new file mode 100644
+index 000000000000..8483c4f4b2eb
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-ft5406-overlay.dts
+@@ -0,0 +1,25 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/soc/firmware";
++		__overlay__ {
++			ts: touchscreen {
++				compatible = "raspberrypi,firmware-ts";
++				touchscreen-size-x = <800>;
++				touchscreen-size-y = <480>;
++			};
++		};
++	};
++
++	__overrides__ {
++		touchscreen-size-x = <&ts>,"touchscreen-size-x:0";
++		touchscreen-size-y = <&ts>,"touchscreen-size-y:0";
++		touchscreen-inverted-x = <&ts>,"touchscreen-inverted-x?";
++		touchscreen-inverted-y = <&ts>,"touchscreen-inverted-y?";
++		touchscreen-swapped-x-y = <&ts>,"touchscreen-swapped-x-y?";
++        };
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts b/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
+new file mode 100644
+index 000000000000..544038b614e1
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
+@@ -0,0 +1,95 @@
++/*
++ * Overlay for the Raspberry Pi POE HAT.
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			fan0: rpi-poe-fan@0 {
++				compatible = "raspberrypi,rpi-poe-fan";
++				firmware = <&firmware>;
++				cooling-min-state = <0>;
++				cooling-max-state = <4>;
++				#cooling-cells = <2>;
++				cooling-levels = <0 31 63 150 255>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&cpu_thermal>;
++		__overlay__ {
++			trips {
++				trip0: trip0 {
++					temperature = <40000>;
++					hysteresis = <2000>;
++					type = "active";
++				};
++				trip1: trip1 {
++					temperature = <45000>;
++					hysteresis = <2000>;
++					type = "active";
++				};
++				trip2: trip2 {
++					temperature = <50000>;
++					hysteresis = <2000>;
++					type = "active";
++				};
++				trip3: trip3 {
++					temperature = <55000>;
++					hysteresis = <5000>;
++					type = "active";
++				};
++			};
++			cooling-maps {
++				map0 {
++					trip = <&trip0>;
++					cooling-device = <&fan0 0 1>;
++				};
++				map1 {
++					trip = <&trip1>;
++					cooling-device = <&fan0 1 2>;
++				};
++				map2 {
++					trip = <&trip2>;
++					cooling-device = <&fan0 2 3>;
++				};
++				map3 {
++					trip = <&trip3>;
++					cooling-device = <&fan0 3 4>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target-path = "/__overrides__";
++		__overlay__ {
++			poe_fan_temp0 =		<&trip0>,"temperature:0";
++			poe_fan_temp0_hyst =	<&trip0>,"hysteresis:0";
++			poe_fan_temp1 =		<&trip1>,"temperature:0";
++			poe_fan_temp1_hyst =	<&trip1>,"hysteresis:0";
++			poe_fan_temp2 =		<&trip2>,"temperature:0";
++			poe_fan_temp2_hyst =	<&trip2>,"hysteresis:0";
++			poe_fan_temp3 =		<&trip3>,"temperature:0";
++			poe_fan_temp3_hyst =	<&trip3>,"hysteresis:0";
++		};
++	};
++
++	__overrides__ {
++		poe_fan_temp0 =		<&trip0>,"temperature:0";
++		poe_fan_temp0_hyst =	<&trip0>,"hysteresis:0";
++		poe_fan_temp1 =		<&trip1>,"temperature:0";
++		poe_fan_temp1_hyst =	<&trip1>,"hysteresis:0";
++		poe_fan_temp2 =		<&trip2>,"temperature:0";
++		poe_fan_temp2_hyst =	<&trip2>,"hysteresis:0";
++		poe_fan_temp3 =		<&trip3>,"temperature:0";
++		poe_fan_temp3_hyst =	<&trip3>,"hysteresis:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts b/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts
+new file mode 100644
+index 000000000000..9cda044a0f62
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for Rpi-Proto
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8731@1a {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8731";
++				reg = <0x1a>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "rpi,rpi-proto";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts b/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts
+new file mode 100644
+index 000000000000..89d8d2ea6b2e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-sense-overlay.dts
+@@ -0,0 +1,47 @@
++// rpi-sense HAT
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rpi-sense@46 {
++				compatible = "rpi,rpi-sense";
++				reg = <0x46>;
++				keys-int-gpios = <&gpio 23 1>;
++				status = "okay";
++			};
++
++			lsm9ds1-magn@1c {
++				compatible = "st,lsm9ds1-magn";
++				reg = <0x1c>;
++				status = "okay";
++			};
++
++			lsm9ds1-accel6a {
++				compatible = "st,lsm9ds1-accel";
++				reg = <0x6a>;
++				status = "okay";
++			};
++
++			lps25h-press@5c {
++				compatible = "st,lps25h-press";
++				reg = <0x5c>;
++				status = "okay";
++			};
++
++			hts221-humid@5f {
++				compatible = "st,hts221-humid", "st,hts221";
++				reg = <0x5f>;
++				status = "okay";
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts
+new file mode 100644
+index 000000000000..3c97a545d820
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts
+@@ -0,0 +1,34 @@
++// rpi-tv HAT
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			cxd2880@0 {
++				compatible = "sony,cxd2880";
++				reg = <0>; /* CE0 */
++				spi-max-frequency = <50000000>;
++				status = "okay";
++			};
++		};
++	};
++
++};
+diff --git a/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+new file mode 100644
+index 000000000000..0a611b31b9d4
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+@@ -0,0 +1,61 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for Raspberry Pi video decode engine
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/interrupt-controller/arm-gic.h>
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&scb>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <2>;
++			#size-cells = <2>;
++
++			codec@7eb10000 {
++				compatible = "raspberrypi,rpivid-vid-decoder";
++				reg = <0x0 0x7eb10000  0x0 0x1000>,  /* INTC */
++				      <0x0 0x7eb00000  0x0 0x10000>; /* HEVC */
++				reg-names = "intc",
++					    "hevc";
++
++				interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
++
++				clocks = <&hevc_clk>;
++				clock-names = "hevc";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&scb>;
++		__overlay__ {
++			hevc-decoder@7eb00000 {
++				status = "disabled";
++			};
++			rpivid-local-intc@7eb10000 {
++				status = "disabled";
++			};
++			h264-decoder@7eb20000 {
++				status = "disabled";
++			};
++			vp9-decoder@7eb30000 {
++				status = "disabled";
++			};
++		};
++	};
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			hevc_clk: hevc_clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <500000000>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts b/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts
+new file mode 100644
+index 000000000000..87e9a326eff1
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rra-digidac1-wm8741-audio-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for RRA DigiDAC1 Audio card
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8804@3b {
++				#sound-dai-cells = <0>;
++				compatible = "wlf,wm8804";
++				reg = <0x3b>;
++				status = "okay";
++				PVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++			};
++
++			wm8742: wm8741@1a {
++				compatible = "wlf,wm8741";
++				reg = <0x1a>;
++				status = "okay";
++				AVDD-supply = <&vdd_5v0_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "rra,digidac1-soundcard";
++			i2s-controller = <&i2s>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts b/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts
+new file mode 100644
+index 000000000000..c51f1c030a55
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts
+@@ -0,0 +1,52 @@
++/*
++ * Device Tree overlay for the Sainsmart 1.8" TFT LCD with ST7735R chip 160x128
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ss18: sainsmart18@0 {
++				compatible = "fbtft,sainsmart18";
++				reg = <0>;
++				pinctrl-names = "default";
++				spi-max-frequency = <40000000>;
++				rotate = <90>;
++				buswidth = <8>;
++				fps = <50>;
++				height = <160>;
++				width = <128>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				debug = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed     = <&ss18>,"spi-max-frequency:0";
++		rotate    = <&ss18>,"rotate:0";
++		fps       = <&ss18>,"fps:0";
++		bgr       = <&ss18>,"bgr?";
++		debug     = <&ss18>,"debug:0";
++		dc_pin    = <&ss18>,"dc-gpios:4";
++		reset_pin = <&ss18>,"reset-gpios:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts b/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts
+new file mode 100644
+index 000000000000..04d74d62897b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sc16is750-i2c-overlay.dts
+@@ -0,0 +1,43 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sc16is750: sc16is750@48 {
++				compatible = "nxp,sc16is750";
++				reg = <0x48>; /* i2c address */
++				clocks = <&sc16is750_clk>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */
++				gpio-controller;
++				#gpio-cells = <2>;
++				i2c-max-frequency = <400000>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			sc16is750_clk: sc16is750_i2c_clk@48 {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <14745600>;
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&sc16is750>,"interrupts:0";
++		addr = <&sc16is750>,"reg:0", <&sc16is750_clk>,"name";
++		xtal = <&sc16is750_clk>,"clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts b/arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts
+new file mode 100644
+index 000000000000..da05e981314c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts
+@@ -0,0 +1,43 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_arm>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sc16is752: sc16is752@48 {
++				compatible = "nxp,sc16is752";
++				reg = <0x48>; /* i2c address */
++				clocks = <&sc16is752_clk>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */
++				gpio-controller;
++				#gpio-cells = <2>;
++				i2c-max-frequency = <400000>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			sc16is752_clk: sc16is752_i2c_clk@48 {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <14745600>;
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&sc16is752>,"interrupts:0";
++		addr = <&sc16is752>,"reg:0",<&sc16is752_clk>,"name";
++		xtal = <&sc16is752_clk>,"clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sc16is752-spi0-overlay.dts b/arch/arm/boot/dts/overlays/sc16is752-spi0-overlay.dts
+new file mode 100644
+index 000000000000..a49a04722b99
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sc16is752-spi0-overlay.dts
+@@ -0,0 +1,49 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sc16is752: sc16is752@0 {
++				compatible = "nxp,sc16is752";
++				reg = <0>; /* CE0 */
++				clocks = <&sc16is752_clk>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */
++				gpio-controller;
++				#gpio-cells = <2>;
++				spi-max-frequency = <4000000>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "/";
++		__overlay__ {
++			sc16is752_clk: sc16is752_spi0_0_clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <14745600>;
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&sc16is752>,"interrupts:0";
++		xtal = <&sc16is752_clk>,"clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+new file mode 100644
+index 000000000000..730c6e8cd614
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+@@ -0,0 +1,67 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi1_pins: spi1_pins {
++				brcm,pins = <19 20 21>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi1_cs_pins: spi1_cs_pins {
++				brcm,pins = <18>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
++			cs-gpios = <&gpio 18 1>;
++			status = "okay";
++
++			sc16is752: sc16is752@0 {
++				compatible = "nxp,sc16is752";
++				reg = <0>; /* CE0 */
++				clocks = <&sc16is752_clk>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 2>; /* IRQ_TYPE_EDGE_FALLING */
++				gpio-controller;
++				#gpio-cells = <2>;
++				spi-max-frequency = <4000000>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			sc16is752_clk: sc16is752_spi1_0_clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <14745600>;
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&sc16is752>,"interrupts:0";
++		xtal = <&sc16is752_clk>,"clock-frequency:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sdhost-overlay.dts b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
+new file mode 100644
+index 000000000000..0b72b4eeac88
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++/* Provide backwards compatible aliases for the old sdhost dtparams. */
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sdhost>;
++		frag0: __overlay__ {
++			brcm,overclock-50 = <0>;
++			brcm,pio-limit = <1>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&mmc>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&mmcnr>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	__overrides__ {
++		overclock_50     = <&frag0>,"brcm,overclock-50:0";
++		force_pio        = <&frag0>,"brcm,force-pio?";
++		pio_limit        = <&frag0>,"brcm,pio-limit:0";
++		debug            = <&frag0>,"brcm,debug?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sdio-overlay.dts b/arch/arm/boot/dts/overlays/sdio-overlay.dts
+new file mode 100644
+index 000000000000..873e49056379
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
+@@ -0,0 +1,77 @@
++/dts-v1/;
++/plugin/;
++
++/* Enable SDIO from MMC interface via various GPIO groups */
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&mmcnr>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&mmc>;
++		sdio_ovl: __overlay__ {
++			pinctrl-0 = <&sdio_ovl_pins>;
++			pinctrl-names = "default";
++			non-removable;
++			bus-width = <4>;
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			sdio_ovl_pins: sdio_ovl_pins {
++				brcm,pins = <22 23 24 25 26 27>;
++				brcm,function = <7>; /* ALT3 = SD1 */
++				brcm,pull = <0 2 2 2 2 2>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sdio_ovl_pins>;
++		__dormant__ {
++			brcm,pins = <22 23 24 25>;
++			brcm,pull = <0 2 2 2>;
++		};
++	};
++
++	fragment@4 {
++		target = <&sdio_ovl_pins>;
++		__dormant__ {
++			brcm,pins = <34 35 36 37>;
++			brcm,pull = <0 2 2 2>;
++		};
++	};
++
++	fragment@5 {
++		target = <&sdio_ovl_pins>;
++		__dormant__ {
++			brcm,pins = <34 35 36 37 38 39>;
++			brcm,pull = <0 2 2 2 2 2>;
++		};
++	};
++
++	fragment@6 {
++		target-path = "/aliases";
++		__overlay__ {
++			mmc1 = "/soc/mmc@7e300000";
++		};
++	};
++
++	__overrides__ {
++		poll_once = <&sdio_ovl>,"non-removable?";
++		bus_width = <&sdio_ovl>,"bus-width:0";
++		sdio_overclock = <&sdio_ovl>,"brcm,overclock-50:0";
++		gpios_22_25 = <0>,"=3";
++		gpios_34_37 = <0>,"=4";
++		gpios_34_39 = <0>,"=5";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
+new file mode 100644
+index 000000000000..38157d2f9bf3
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
+@@ -0,0 +1,25 @@
++/dts-v1/;
++/plugin/;
++
++/* Provide backwards compatible aliases for the old sdhost dtparams. */
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sdhost>;
++		frag0: __overlay__ {
++			brcm,overclock-50 = <0>;
++			brcm,pio-limit = <1>;
++		};
++	};
++
++	__overrides__ {
++		overclock_50     = <&frag0>,"brcm,overclock-50:0";
++		force_pio        = <&frag0>,"brcm,force-pio?";
++		pio_limit        = <&frag0>,"brcm,pio-limit:0";
++		debug            = <&frag0>,"brcm,debug?";
++		enable           = <&frag0>,"status";
++		poll_once        = <&frag0>,"non-removable?";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts b/arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
+new file mode 100644
+index 000000000000..57a0cc9b1741
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
+@@ -0,0 +1,84 @@
++/*
++ * Device Tree overlay for SH1106 based SPI OLED display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			sh1106_pins: sh1106_pins {
++                                brcm,pins = <25 24>;
++                                brcm,function = <1 1>; /* out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sh1106: sh1106@0{
++				compatible = "sinowealth,sh1106";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&sh1106_pins>;
++
++				spi-max-frequency = <4000000>;
++				bgr = <0>;
++				bpp = <1>;
++				rotate = <0>;
++				fps = <25>;
++				buswidth = <8>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				debug = <0>;
++
++				sinowealth,height = <64>;
++				sinowealth,width = <128>;
++				sinowealth,page-offset = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed     = <&sh1106>,"spi-max-frequency:0";
++		rotate    = <&sh1106>,"rotate:0";
++		fps       = <&sh1106>,"fps:0";
++		debug     = <&sh1106>,"debug:0";
++		dc_pin    = <&sh1106>,"dc-gpios:4",
++		            <&sh1106_pins>,"brcm,pins:4";
++		reset_pin = <&sh1106>,"reset-gpios:4",
++		            <&sh1106_pins>,"brcm,pins:0";
++		height    = <&sh1106>,"sinowealth,height:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/smi-dev-overlay.dts b/arch/arm/boot/dts/overlays/smi-dev-overlay.dts
+new file mode 100644
+index 000000000000..bafab6c92506
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/smi-dev-overlay.dts
+@@ -0,0 +1,20 @@
++// Description: Overlay to enable character device interface for SMI.
++// Author:	Luke Wren <luke@raspberrypi.org>
++
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&soc>;
++		__overlay__ {
++			smi_dev {
++				compatible = "brcm,bcm2835-smi-dev";
++				smi_handle = <&smi>;
++				status = "okay";
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/smi-nand-overlay.dts b/arch/arm/boot/dts/overlays/smi-nand-overlay.dts
+new file mode 100644
+index 000000000000..ae1e50329d66
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/smi-nand-overlay.dts
+@@ -0,0 +1,66 @@
++// Description: Overlay to enable NAND flash through
++// the secondary memory interface
++// Author:	Luke Wren
++
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&smi>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&smi_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&soc>;
++		__overlay__ {
++			nand: flash@0 {
++				compatible = "brcm,bcm2835-smi-nand";
++				smi_handle = <&smi>;
++				#address-cells = <1>;
++				#size-cells = <1>;
++				status = "okay";
++
++				partition@0 {
++					label = "stage2";
++					// 128k
++					reg = <0 0x20000>;
++					read-only;
++				};
++				partition@1 {
++					label = "firmware";
++					// 16M
++					reg = <0x20000 0x1000000>;
++					read-only;
++				};
++				partition@2 {
++					label = "root";
++					// 2G (will need to use 64 bit for >=4G)
++					reg = <0x1020000 0x80000000>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&gpio>;
++		__overlay__ {
++			smi_pins: smi_pins {
++				brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
++					12 13 14 15>;
++				/* Alt 1: SMI */
++				brcm,function = <5 5 5 5 5 5 5 5 5 5 5
++					5 5 5 5 5>;
++				/* /CS, /WE and /OE are pulled high, as they are
++				   generally active low signals */
++				brcm,pull = <2 2 2 2 2 2 2 2 0 0 0 0 0 0 0 0>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/smi-overlay.dts b/arch/arm/boot/dts/overlays/smi-overlay.dts
+new file mode 100644
+index 000000000000..bb8c7830df23
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/smi-overlay.dts
+@@ -0,0 +1,37 @@
++// Description:	Overlay to enable the secondary memory interface peripheral
++// Author:	Luke Wren
++
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&smi>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&smi_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			smi_pins: smi_pins {
++				/* Don't configure the top two address bits, as
++				   these are already used as ID_SD and ID_SC */
++				brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 13 14 15
++					     16 17 18 19 20 21 22 23 24 25>;
++				/* Alt 1: SMI */
++				brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
++						 5 5 5 5 5 5 5 5 5>;
++				/* /CS, /WE and /OE are pulled high, as they are
++				   generally active low signals */
++				brcm,pull = <2 2 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0
++					     0 0 0 0 0 0 0>;
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts b/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts
+new file mode 100644
+index 000000000000..a132b8637c31
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi-gpio35-39-overlay.dts
+@@ -0,0 +1,31 @@
++/*
++ * Device tree overlay to move spi0 to gpio 35 to 39 on CM
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			cs-gpios = <&gpio 36 1>, <&gpio 35 1>;
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0_cs_pins>;
++		__overlay__ {
++			brcm,pins = <36 35>;
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0_pins>;
++		__overlay__ {
++			brcm,pins = <37 38 39>;
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi-gpio40-45-overlay.dts b/arch/arm/boot/dts/overlays/spi-gpio40-45-overlay.dts
+new file mode 100644
+index 000000000000..9ebcaf1b5ea0
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi-gpio40-45-overlay.dts
+@@ -0,0 +1,36 @@
++/*
++ * Boot EEPROM overlay
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			cs-gpios = <&gpio 43 1>, <&gpio 44 1>, <&gpio 45 1>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0_cs_pins>;
++		__overlay__ {
++			brcm,pins = <45 44 43>;
++			brcm,function = <1>; /* output */
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0_pins>;
++		__overlay__ {
++			brcm,pins = <40 41 42>;
++			brcm,function = <3>; /* alt4 */
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts b/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts
+new file mode 100644
+index 000000000000..9664afc9845c
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts
+@@ -0,0 +1,33 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			rtc-pcf2123@0 {
++				compatible = "nxp,rtc-pcf2123";
++				spi-max-frequency = <5000000>;
++				spi-cs-high = <1>;
++				reg = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		pcf2123 = <0>, "=0=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi0-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi0-1cs-overlay.dts
+new file mode 100644
+index 000000000000..e6eb66e2076a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi0-1cs-overlay.dts
+@@ -0,0 +1,42 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <8>;
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		frag1: __overlay__ {
++			cs-gpios = <&gpio 8 1>;
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&spi0_pins>;
++		__dormant__ {
++			brcm,pins = <10 11>;
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		no_miso = <0>,"=3";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi0-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi0-2cs-overlay.dts
+new file mode 100644
+index 000000000000..df6519537c3a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi0-2cs-overlay.dts
+@@ -0,0 +1,37 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <8 7>;
++		};
++	};
++
++	fragment@1 {
++		target = <&spi0>;
++		frag1: __overlay__ {
++			cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0_pins>;
++		__dormant__ {
++			brcm,pins = <10 11>;
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&frag0>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		no_miso = <0>,"=2";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts
+new file mode 100644
+index 000000000000..ea2794bc5fd5
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts
+@@ -0,0 +1,57 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi1_pins: spi1_pins {
++				brcm,pins = <19 20 21>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi1_cs_pins: spi1_cs_pins {
++				brcm,pins = <18>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi1>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
++			cs-gpios = <&gpio 18 1>;
++			status = "okay";
++
++			spidev1_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev1_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts
+new file mode 100644
+index 000000000000..dab34ee79ae2
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts
+@@ -0,0 +1,69 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi1_pins: spi1_pins {
++				brcm,pins = <19 20 21>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi1_cs_pins: spi1_cs_pins {
++				brcm,pins = <18 17>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi1>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
++			cs-gpios = <&gpio 18 1>, <&gpio 17 1>;
++			status = "okay";
++
++			spidev1_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev1_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&spi1_cs_pins>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev1_0>,"status";
++		cs1_spidev = <&spidev1_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts b/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts
+new file mode 100644
+index 000000000000..bc7e7d04324b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts
+@@ -0,0 +1,81 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi1_pins: spi1_pins {
++				brcm,pins = <19 20 21>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi1_cs_pins: spi1_cs_pins {
++				brcm,pins = <18 17 16>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi1>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
++			cs-gpios = <&gpio 18 1>, <&gpio 17 1>, <&gpio 16 1>;
++			status = "okay";
++
++			spidev1_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev1_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev1_2: spidev@2 {
++				compatible = "spidev";
++				reg = <2>;      /* CE2 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&spi1_cs_pins>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs2_pin  = <&spi1_cs_pins>,"brcm,pins:8",
++			   <&frag1>,"cs-gpios:28";
++		cs0_spidev = <&spidev1_0>,"status";
++		cs1_spidev = <&spidev1_1>,"status";
++		cs2_spidev = <&spidev1_2>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts
+new file mode 100644
+index 000000000000..2a29750462af
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts
+@@ -0,0 +1,57 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi2_pins: spi2_pins {
++				brcm,pins = <40 41 42>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi2_cs_pins: spi2_cs_pins {
++				brcm,pins = <43>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi2>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
++			cs-gpios = <&gpio 43 1>;
++			status = "okay";
++
++			spidev2_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev2_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts
+new file mode 100644
+index 000000000000..642678fc9ddd
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts
+@@ -0,0 +1,69 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi2_pins: spi2_pins {
++				brcm,pins = <40 41 42>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi2_cs_pins: spi2_cs_pins {
++				brcm,pins = <43 44>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi2>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
++			cs-gpios = <&gpio 43 1>, <&gpio 44 1>;
++			status = "okay";
++
++			spidev2_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev2_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&spi2_cs_pins>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev2_0>,"status";
++		cs1_spidev = <&spidev2_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts b/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts
+new file mode 100644
+index 000000000000..28d40c6c3c37
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts
+@@ -0,0 +1,81 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi2_pins: spi2_pins {
++				brcm,pins = <40 41 42>;
++				brcm,function = <3>; /* alt4 */
++			};
++
++			spi2_cs_pins: spi2_cs_pins {
++				brcm,pins = <43 44 45>;
++				brcm,function = <1>; /* output */
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&spi2>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
++			cs-gpios = <&gpio 43 1>, <&gpio 44 1>, <&gpio 45 1>;
++			status = "okay";
++
++			spidev2_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev2_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev2_2: spidev@2 {
++				compatible = "spidev";
++				reg = <2>;      /* CE2 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&spi2_cs_pins>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs2_pin  = <&spi2_cs_pins>,"brcm,pins:8",
++			   <&frag1>,"cs-gpios:28";
++		cs0_spidev = <&spidev2_0>,"status";
++		cs1_spidev = <&spidev2_1>,"status";
++		cs2_spidev = <&spidev2_2>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts
+new file mode 100644
+index 000000000000..335af8637051
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts
+@@ -0,0 +1,44 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi3_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <0>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi3>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi3_pins &spi3_cs_pins>;
++			cs-gpios = <&gpio 0 1>;
++			status = "okay";
++
++			spidev3_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev3_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi3-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi3-2cs-overlay.dts
+new file mode 100644
+index 000000000000..ce65da27f767
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi3-2cs-overlay.dts
+@@ -0,0 +1,56 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi3_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <0 24>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi3>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi3_pins &spi3_cs_pins>;
++			cs-gpios = <&gpio 0 1>, <&gpio 24 1>;
++			status = "okay";
++
++			spidev3_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev3_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&frag0>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev3_0>,"status";
++		cs1_spidev = <&spidev3_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi4-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi4-1cs-overlay.dts
+new file mode 100644
+index 000000000000..85d70b40352b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi4-1cs-overlay.dts
+@@ -0,0 +1,44 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi4_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <4>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi4>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi4_pins &spi4_cs_pins>;
++			cs-gpios = <&gpio 4 1>;
++			status = "okay";
++
++			spidev4_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev4_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi4-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi4-2cs-overlay.dts
+new file mode 100644
+index 000000000000..8bc2215a6a7e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi4-2cs-overlay.dts
+@@ -0,0 +1,56 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi4_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <4 25>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi4>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi4_pins &spi4_cs_pins>;
++			cs-gpios = <&gpio 4 1>, <&gpio 25 1>;
++			status = "okay";
++
++			spidev4_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev4_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&frag0>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev4_0>,"status";
++		cs1_spidev = <&spidev4_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi5-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi5-1cs-overlay.dts
+new file mode 100644
+index 000000000000..c0f8cb8510ee
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi5-1cs-overlay.dts
+@@ -0,0 +1,44 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi5_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <12>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi5>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi5_pins &spi5_cs_pins>;
++			cs-gpios = <&gpio 12 1>;
++			status = "okay";
++
++			spidev5_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev5_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi5-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi5-2cs-overlay.dts
+new file mode 100644
+index 000000000000..7758b9c00b4e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi5-2cs-overlay.dts
+@@ -0,0 +1,56 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi5_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <12 26>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi5>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi5_pins &spi5_cs_pins>;
++			cs-gpios = <&gpio 12 1>, <&gpio 26 1>;
++			status = "okay";
++
++			spidev5_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev5_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&frag0>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev5_0>,"status";
++		cs1_spidev = <&spidev5_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi6-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi6-1cs-overlay.dts
+new file mode 100644
+index 000000000000..8c8a953eca01
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi6-1cs-overlay.dts
+@@ -0,0 +1,44 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi6_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <18>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi6>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi6_pins &spi6_cs_pins>;
++			cs-gpios = <&gpio 18 1>;
++			status = "okay";
++
++			spidev6_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs0_spidev = <&spidev6_0>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/spi6-2cs-overlay.dts b/arch/arm/boot/dts/overlays/spi6-2cs-overlay.dts
+new file mode 100644
+index 000000000000..2ff897f21aed
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/spi6-2cs-overlay.dts
+@@ -0,0 +1,56 @@
++/dts-v1/;
++/plugin/;
++
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&spi6_cs_pins>;
++		frag0: __overlay__ {
++			brcm,pins = <18 27>;
++			brcm,function = <1>; /* output */
++		};
++	};
++
++	fragment@1 {
++		target = <&spi6>;
++		frag1: __overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pinctrl-names = "default";
++		        pinctrl-0 = <&spi6_pins &spi6_cs_pins>;
++			cs-gpios = <&gpio 18 1>, <&gpio 27 1>;
++			status = "okay";
++
++			spidev6_0: spidev@0 {
++				compatible = "spidev";
++				reg = <0>;      /* CE0 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++
++			spidev6_1: spidev@1 {
++				compatible = "spidev";
++				reg = <1>;      /* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "okay";
++			};
++		};
++	};
++
++	__overrides__ {
++		cs0_pin  = <&frag0>,"brcm,pins:0",
++			   <&frag1>,"cs-gpios:4";
++		cs1_pin  = <&frag0>,"brcm,pins:4",
++			   <&frag1>,"cs-gpios:16";
++		cs0_spidev = <&spidev6_0>,"status";
++		cs1_spidev = <&spidev6_1>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ssd1306-overlay.dts b/arch/arm/boot/dts/overlays/ssd1306-overlay.dts
+new file mode 100644
+index 000000000000..84cf10e489d3
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ssd1306-overlay.dts
+@@ -0,0 +1,36 @@
++// Overlay for SSD1306 128x64 and 128x32 OLED displays
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++	target = <&i2c1>;
++	__overlay__ {
++	    status = "okay";
++
++	    #address-cells = <1>;
++	    #size-cells = <0>;
++
++	    ssd1306: oled@3c{
++		compatible = "solomon,ssd1306fb-i2c";
++		reg = <0x3c>;
++		solomon,width = <128>;
++		solomon,height = <64>;
++		solomon,page-offset = <0>;
++	    };
++	};
++    };
++
++    __overrides__ {
++	address = <&ssd1306>,"reg:0";
++	width = <&ssd1306>,"solomon,width:0";
++	height = <&ssd1306>,"solomon,height:0";
++	offset = <&ssd1306>,"solomon,page-offset:0";
++	normal = <&ssd1306>,"solomon,segment-no-remap?";
++	sequential = <&ssd1306>,"solomon,com-seq?";
++	remapped = <&ssd1306>,"solomon,com-lrremap?";
++	inverted = <&ssd1306>,"solomon,com-invdir?";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/ssd1306-spi-overlay.dts b/arch/arm/boot/dts/overlays/ssd1306-spi-overlay.dts
+new file mode 100644
+index 000000000000..ffc90c7cecf6
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ssd1306-spi-overlay.dts
+@@ -0,0 +1,84 @@
++/*
++ * Device Tree overlay for SSD1306 based SPI OLED display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			ssd1306_pins: ssd1306_pins {
++                                brcm,pins = <25 24>;
++                                brcm,function = <1 1>; /* out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ssd1306: ssd1306@0{
++				compatible = "solomon,ssd1306";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&ssd1306_pins>;
++
++				spi-max-frequency = <10000000>;
++				bgr = <0>;
++				bpp = <1>;
++				rotate = <0>;
++				fps = <25>;
++				buswidth = <8>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				debug = <0>;
++
++				solomon,height = <64>;
++				solomon,width = <128>;
++				solomon,page-offset = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed     = <&ssd1306>,"spi-max-frequency:0";
++		rotate    = <&ssd1306>,"rotate:0";
++		fps       = <&ssd1306>,"fps:0";
++		debug     = <&ssd1306>,"debug:0";
++		dc_pin    = <&ssd1306>,"dc-gpios:4",
++		            <&ssd1306_pins>,"brcm,pins:4";
++		reset_pin = <&ssd1306>,"reset-gpios:4",
++		            <&ssd1306_pins>,"brcm,pins:0";
++		height    = <&ssd1306>,"solomon,height:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts b/arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
+new file mode 100644
+index 000000000000..ffc872c60648
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
+@@ -0,0 +1,83 @@
++/*
++ * Device Tree overlay for SSD1351 based SPI OLED display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			ssd1351_pins: ssd1351_pins {
++                                brcm,pins = <25 24>;
++                                brcm,function = <1 1>; /* out out */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ssd1351: ssd1351@0{
++				compatible = "solomon,ssd1351";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&ssd1351_pins>;
++
++				spi-max-frequency = <4500000>;
++				bgr = <0>;
++				bpp = <16>;
++				rotate = <0>;
++				fps = <25>;
++				buswidth = <8>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				debug = <0>;
++
++				solomon,height = <128>;
++				solomon,width = <128>;
++				solomon,page-offset = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		speed     = <&ssd1351>,"spi-max-frequency:0";
++		rotate    = <&ssd1351>,"rotate:0";
++		fps       = <&ssd1351>,"fps:0";
++		debug     = <&ssd1351>,"debug:0";
++		dc_pin    = <&ssd1351>,"dc-gpios:4",
++		            <&ssd1351_pins>,"brcm,pins:4";
++		reset_pin = <&ssd1351>,"reset-gpios:4",
++		            <&ssd1351_pins>,"brcm,pins:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/superaudioboard-overlay.dts b/arch/arm/boot/dts/overlays/superaudioboard-overlay.dts
+new file mode 100755
+index 000000000000..bad61535981e
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/superaudioboard-overlay.dts
+@@ -0,0 +1,73 @@
++// Definitions for SuperAudioBoard
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			i2s-controller = <&i2s>;
++			status = "okay";
++
++			simple-audio-card,name = "SuperAudioBoard";
++
++			simple-audio-card,widgets =
++				"Line", "Line In",
++				"Line", "Line Out";
++
++			simple-audio-card,routing =
++				"Line Out","AOUTA+",
++				"Line Out","AOUTA-",
++				"Line Out","AOUTB+",
++				"Line Out","AOUTB-",
++				"AINA","Line In",
++				"AINB","Line In";
++
++			simple-audio-card,format = "i2s";
++
++			simple-audio-card,bitclock-master = <&sound_master>;
++			simple-audio-card,frame-master = <&sound_master>;
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++				dai-tdm-slot-num = <2>;
++				dai-tdm-slot-width = <32>;
++			};
++
++			sound_master: simple-audio-card,codec {
++				sound-dai = <&cs4271>;
++				system-clock-frequency = <24576000>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++    
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			cs4271: cs4271@10 {
++				#sound-dai-cells = <0>;
++				compatible = "cirrus,cs4271";
++				reg = <0x10>;
++				status = "okay";
++				reset-gpio = <&gpio 26 0>; /* Pin 26, active high */
++			};
++		};
++	};
++	__overrides__ {
++		gpiopin = <&cs4271>,"reset-gpio:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/sx150x-overlay.dts b/arch/arm/boot/dts/overlays/sx150x-overlay.dts
+new file mode 100644
+index 000000000000..1d1069345da2
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sx150x-overlay.dts
+@@ -0,0 +1,1706 @@
++// Definitions for SX150x I2C GPIO Expanders from Semtech
++
++// dtparams:
++//     sx150<x>-<n>-<m>          - Enables SX150X device on I2C#<n> with slave address <m>. <x> may be 1-9.
++//                                 <n> may be 0 or 1.  Permissible values of <m> (which is denoted in hex)
++//                                 depend on the device variant.
++//                                 For SX1501, SX1502, SX1504 and SX1505, <m> may be 20 or 21.
++//                                 For SX1503 and SX1506, <m> may be 20.
++//                                 For SX1507 and SX1509, <m> may be 3E, 3F, 70 or 71.
++//                                 For SX1508, <m> may be 20, 21, 22 or 23.
++//     sx150<x>-<n>-<m>-int-gpio - Integer, enables interrupts on SX150X device on I2C#<n> with slave address <m>,
++//                                 specifies the GPIO pin to which NINT output of SX150X is connected.
++//
++//
++// Example 1: A single SX1505 device on I2C#1 with its slave address set to 0x20 and NINT output connected to GPIO25:
++// dtoverlay=sx150x:sx1505-1-20,sx1505-1-20-int-gpio=25
++//
++// Example 2: Two SX1507 devices on I2C#0 with their slave addresses set to 0x3E and 0x70 (interrupts not used):
++// dtoverlay=sx150x:sx1507-0-3E,sx1507-0-70
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	// Enable I2C#0 interface
++	fragment@0 {
++		target = <&i2c0>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
++	// Enable I2C#1 interface
++	fragment@1 {
++		target = <&i2c1>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
++	// Enable a SX1501 on I2C#0 at slave addr 0x20
++	fragment@2 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1501_0_20: sx150x@20 {
++				compatible = "semtech,sx1501q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1501-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1501 on I2C#1 at slave addr 0x20
++	fragment@3 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1501_1_20: sx150x@20 {
++				compatible = "semtech,sx1501q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1501-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1501 on I2C#0 at slave addr 0x21
++	fragment@4 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1501_0_21: sx150x@21 {
++				compatible = "semtech,sx1501q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1501-0-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1501 on I2C#1 at slave addr 0x21
++	fragment@5 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1501_1_21: sx150x@21 {
++				compatible = "semtech,sx1501q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1501-1-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1502 on I2C#0 at slave addr 0x20
++	fragment@6 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1502_0_20: sx150x@20 {
++				compatible = "semtech,sx1502q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1502-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1502 on I2C#1 at slave addr 0x20
++	fragment@7 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1502_1_20: sx150x@20 {
++				compatible = "semtech,sx1502q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1502-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1502 on I2C#0 at slave addr 0x21
++	fragment@8 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1502_0_21: sx150x@21 {
++				compatible = "semtech,sx1502q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1502-0-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1502 on I2C#1 at slave addr 0x21
++	fragment@9 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1502_1_21: sx150x@21 {
++				compatible = "semtech,sx1502q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1501-1-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1503 on I2C#0 at slave addr 0x20
++	fragment@10 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1503_0_20: sx150x@20 {
++				compatible = "semtech,sx1503q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1503-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1503 on I2C#1 at slave addr 0x20
++	fragment@11 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1503_1_20: sx150x@20 {
++				compatible = "semtech,sx1503q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1503-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1504 on I2C#0 at slave addr 0x20
++	fragment@12 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1504_0_20: sx150x@20 {
++				compatible = "semtech,sx1504q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1504-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1504 on I2C#1 at slave addr 0x20
++	fragment@13 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1504_1_20: sx150x@20 {
++				compatible = "semtech,sx1504q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1504-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1504 on I2C#0 at slave addr 0x21
++	fragment@14 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1504_0_21: sx150x@21 {
++				compatible = "semtech,sx1504q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1504-0-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1504 on I2C#1 at slave addr 0x21
++	fragment@15 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1504_1_21: sx150x@21 {
++				compatible = "semtech,sx1504q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1504-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1505 on I2C#0 at slave addr 0x20
++	fragment@16 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1505_0_20: sx150x@20 {
++				compatible = "semtech,sx1505q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1505-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1505 on I2C#1 at slave addr 0x20
++	fragment@17 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1505_1_20: sx150x@20 {
++				compatible = "semtech,sx1505q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1505-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1505 on I2C#0 at slave addr 0x21
++	fragment@18 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1505_0_21: sx150x@21 {
++				compatible = "semtech,sx1505q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1505-0-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1505 on I2C#1 at slave addr 0x21
++	fragment@19 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1505_1_21: sx150x@21 {
++				compatible = "semtech,sx1505q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1505-1-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1506 on I2C#0 at slave addr 0x20
++	fragment@20 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1506_0_20: sx150x@20 {
++				compatible = "semtech,sx1506q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1506-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1506 on I2C#1 at slave addr 0x20
++	fragment@21 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1506_1_20: sx150x@20 {
++				compatible = "semtech,sx1506q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1506-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#0 at slave addr 0x3E
++	fragment@22 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_0_3E: sx150x@3E {
++				compatible = "semtech,sx1507q";
++				reg = <0x3E>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507_0_3E-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#1 at slave addr 0x3E
++	fragment@23 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_1_3E: sx150x@3E {
++				compatible = "semtech,sx1507q";
++				reg = <0x3E>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507_1_3E-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#0 at slave addr 0x3F
++	fragment@24 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_0_3F: sx150x@3F {
++				compatible = "semtech,sx1507q";
++				reg = <0x3F>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507_0_3F-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#1 at slave addr 0x3F
++	fragment@25 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_1_3F: sx150x@3F {
++				compatible = "semtech,sx1507q";
++				reg = <0x3F>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507_1_3F-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#0 at slave addr 0x70
++	fragment@26 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_0_70: sx150x@70 {
++				compatible = "semtech,sx1507q";
++				reg = <0x70>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507-0-70-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#1 at slave addr 0x70
++	fragment@27 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_1_70: sx150x@70 {
++				compatible = "semtech,sx1507q";
++				reg = <0x70>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507-1-70-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#0 at slave addr 0x71
++	fragment@28 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_0_71: sx150x@71 {
++				compatible = "semtech,sx1507q";
++				reg = <0x71>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507-0-71-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1507 on I2C#1 at slave addr 0x71
++	fragment@29 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1507_1_71: sx150x@71 {
++				compatible = "semtech,sx1507q";
++				reg = <0x71>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1507-1-71-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#0 at slave addr 0x20
++	fragment@30 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_0_20: sx150x@20 {
++				compatible = "semtech,sx1508q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-0-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#1 at slave addr 0x20
++	fragment@31 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_1_20: sx150x@20 {
++				compatible = "semtech,sx1508q";
++				reg = <0x20>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-1-20-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#0 at slave addr 0x21
++	fragment@32 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_0_21: sx150x@21 {
++				compatible = "semtech,sx1508q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-0-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#1 at slave addr 0x21
++	fragment@33 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_1_21: sx150x@21 {
++				compatible = "semtech,sx1508q";
++				reg = <0x21>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-1-21-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#0 at slave addr 0x22
++	fragment@34 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_0_22: sx150x@22 {
++				compatible = "semtech,sx1508q";
++				reg = <0x22>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-0-22-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#1 at slave addr 0x22
++	fragment@35 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_1_22: sx150x@22 {
++				compatible = "semtech,sx1508q";
++				reg = <0x22>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-1-22-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#0 at slave addr 0x23
++	fragment@36 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_0_23: sx150x@23 {
++				compatible = "semtech,sx1508q";
++				reg = <0x23>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-0-23-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1508 on I2C#1 at slave addr 0x23
++	fragment@37 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1508_1_23: sx150x@23 {
++				compatible = "semtech,sx1508q";
++				reg = <0x23>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1508-1-23-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#0 at slave addr 0x3E
++	fragment@38 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_0_3E: sx150x@3E {
++				compatible = "semtech,sx1509q";
++				reg = <0x3E>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509_0_3E-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#1 at slave addr 0x3E
++	fragment@39 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_1_3E: sx150x@3E {
++				compatible = "semtech,sx1509q";
++				reg = <0x3E>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509_1_3E-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#0 at slave addr 0x3F
++	fragment@40 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_0_3F: sx150x@3F {
++				compatible = "semtech,sx1509q";
++				reg = <0x3F>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509_0_3F-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#1 at slave addr 0x3F
++	fragment@41 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_1_3F: sx150x@3F {
++				compatible = "semtech,sx1509q";
++				reg = <0x3F>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509_1_3F-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#0 at slave addr 0x70
++	fragment@42 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_0_70: sx150x@70 {
++				compatible = "semtech,sx1509q";
++				reg = <0x70>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509-0-70-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#1 at slave addr 0x70
++	fragment@43 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_1_70: sx150x@70 {
++				compatible = "semtech,sx1509q";
++				reg = <0x70>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509-1-70-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#0 at slave addr 0x71
++	fragment@44 {
++		target = <&i2c0>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_0_71: sx150x@71 {
++				compatible = "semtech,sx1509q";
++				reg = <0x71>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509-0-71-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable a SX1509 on I2C#1 at slave addr 0x71
++	fragment@45 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sx1509_1_71: sx150x@71 {
++				compatible = "semtech,sx1509q";
++				reg = <0x71>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				#interrupt-cells = <2>;
++				interrupts = <25 2>; /* 1st word overwritten by sx1509-1-71-int-gpio parameter
++				                        2nd word is 2 for falling-edge triggered */
++				status = "okay";
++			};
++		};
++	};
++
++	// Enable interrupts for a SX1501 on I2C#0 at slave addr 0x20
++	fragment@46 {
++		target = <&sx1501_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1501 on I2C#1 at slave addr 0x20
++	fragment@47 {
++		target = <&sx1501_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1501 on I2C#0 at slave addr 0x21
++	fragment@48 {
++		target = <&sx1501_0_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1501 on I2C#1 at slave addr 0x21
++	fragment@49 {
++		target = <&sx1501_1_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1502 on I2C#0 at slave addr 0x20
++	fragment@50 {
++		target = <&sx1502_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1502 on I2C#1 at slave addr 0x20
++	fragment@51 {
++		target = <&sx1502_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1502 on I2C#0 at slave addr 0x21
++	fragment@52 {
++		target = <&sx1502_0_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1502 on I2C#1 at slave addr 0x21
++	fragment@53 {
++		target = <&sx1502_1_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1503 on I2C#0 at slave addr 0x20
++	fragment@54 {
++		target = <&sx1503_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1503 on I2C#1 at slave addr 0x20
++	fragment@55 {
++		target = <&sx1503_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1504 on I2C#0 at slave addr 0x20
++	fragment@56 {
++		target = <&sx1504_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1504 on I2C#1 at slave addr 0x20
++	fragment@57 {
++		target = <&sx1504_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1504 on I2C#0 at slave addr 0x21
++	fragment@58 {
++		target = <&sx1504_0_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1504 on I2C#1 at slave addr 0x21
++	fragment@59 {
++		target = <&sx1504_1_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1505 on I2C#0 at slave addr 0x20
++	fragment@60 {
++		target = <&sx1505_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1505 on I2C#1 at slave addr 0x20
++	fragment@61 {
++		target = <&sx1505_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1505 on I2C#0 at slave addr 0x21
++	fragment@62 {
++		target = <&sx1505_0_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1505 on I2C#1 at slave addr 0x21
++	fragment@63 {
++		target = <&sx1505_1_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1506 on I2C#0 at slave addr 0x20
++	fragment@64 {
++		target = <&sx1506_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1506 on I2C#1 at slave addr 0x20
++	fragment@65 {
++		target = <&sx1506_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#0 at slave addr 0x3E
++	fragment@66 {
++		target = <&sx1507_0_3E>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_3E_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#1 at slave addr 0x3E
++	fragment@67 {
++		target = <&sx1507_1_3E>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_3E_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#0 at slave addr 0x3F
++	fragment@68 {
++		target = <&sx1507_0_3F>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_3F_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#1 at slave addr 0x3F
++	fragment@69 {
++		target = <&sx1507_1_3F>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_3F_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#0 at slave addr 0x70
++	fragment@70 {
++		target = <&sx1507_0_70>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_70_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#1 at slave addr 0x70
++	fragment@71 {
++		target = <&sx1507_1_70>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_70_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#0 at slave addr 0x71
++	fragment@72 {
++		target = <&sx1507_0_71>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_71_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1507 on I2C#1 at slave addr 0x71
++	fragment@73 {
++		target = <&sx1507_1_71>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_71_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#0 at slave addr 0x20
++	fragment@74 {
++		target = <&sx1508_0_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#1 at slave addr 0x20
++	fragment@75 {
++		target = <&sx1508_1_20>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_20_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#0 at slave addr 0x21
++	fragment@76 {
++		target = <&sx1508_0_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#1 at slave addr 0x21
++	fragment@77 {
++		target = <&sx1508_1_21>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_21_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#0 at slave addr 0x22
++	fragment@78 {
++		target = <&sx1508_0_22>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_22_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#1 at slave addr 0x22
++	fragment@79 {
++		target = <&sx1508_1_22>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_22_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#0 at slave addr 0x23
++	fragment@80 {
++		target = <&sx1508_0_23>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_23_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1508 on I2C#1 at slave addr 0x23
++	fragment@81 {
++		target = <&sx1508_1_23>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_23_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#0 at slave addr 0x3E
++	fragment@82 {
++		target = <&sx1509_0_3E>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_3E_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#1 at slave addr 0x3E
++	fragment@83 {
++		target = <&sx1509_1_3E>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_3E_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#0 at slave addr 0x3F
++	fragment@84 {
++		target = <&sx1509_0_3F>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_3F_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#1 at slave addr 0x3F
++	fragment@85 {
++		target = <&sx1509_1_3F>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_3F_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#0 at slave addr 0x70
++	fragment@86 {
++		target = <&sx1509_0_70>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_70_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#1 at slave addr 0x70
++	fragment@87 {
++		target = <&sx1509_1_70>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_70_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#0 at slave addr 0x71
++	fragment@88 {
++		target = <&sx1509_0_71>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_0_71_pins>;
++		};
++	};
++
++	// Enable interrupts for a SX1509 on I2C#1 at slave addr 0x71
++	fragment@89 {
++		target = <&sx1509_1_71>;
++		__dormant__ {
++			interrupt-parent = <&gpio>;
++			interrupt-controller;
++			pinctrl-names = "default";
++			pinctrl-0 = <&sx150x_1_71_pins>;
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x20
++        // Configure as a input with no pull-up/down
++	fragment@90 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_20_pins: sx150x_0_20_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-20-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x20
++        // Configure as a input with no pull-up/down
++	fragment@91 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_20_pins: sx150x_1_20_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-20-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x21
++        // Configure as a input with no pull-up/down
++	fragment@92 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_21_pins: sx150x_0_21_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-21-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x21
++        // Configure as a input with no pull-up/down
++	fragment@93 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_21_pins: sx150x_1_21_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-21-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x22
++        // Configure as a input with no pull-up/down
++	fragment@94 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_22_pins: sx150x_0_22_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-22-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x22
++        // Configure as a input with no pull-up/down
++	fragment@95 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_22_pins: sx150x_1_22_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-22-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x23
++        // Configure as a input with no pull-up/down
++	fragment@96 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_23_pins: sx150x_0_23_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-23-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x23
++        // Configure as a input with no pull-up/down
++	fragment@97 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_23_pins: sx150x_1_23_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-23-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x3E
++        // Configure as a input with no pull-up/down
++	fragment@98 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_3E_pins: sx150x_0_3E_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-3E-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x3E
++        // Configure as a input with no pull-up/down
++	fragment@99 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_3E_pins: sx150x_1_3E_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-3E-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x3F
++        // Configure as a input with no pull-up/down
++	fragment@100 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_3F_pins: sx150x_0_3F_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-3F-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x3F
++        // Configure as a input with no pull-up/down
++	fragment@101 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_3F_pins: sx150x_1_3F_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-3F-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x70
++        // Configure as a input with no pull-up/down
++	fragment@102 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_70_pins: sx150x_0_70_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-70-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x70
++        // Configure as a input with no pull-up/down
++	fragment@103 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_70_pins: sx150x_1_70_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-70-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#0 interface at slave addr 0x71
++        // Configure as a input with no pull-up/down
++	fragment@104 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_0_71_pins: sx150x_0_71_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-0-71-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	// Configure GPIO pin connected to NINT output of a SX150x on I2C#1 interface at slave addr 0x71
++        // Configure as a input with no pull-up/down
++	fragment@105 {
++		target = <&gpio>;
++		__dormant__ {
++			sx150x_1_71_pins: sx150x_1_71_pins {
++				brcm,pins = <0>;  /* overwritten by sx150x-1-71-int-gpio parameter */
++				brcm,function = <0>;
++				brcm,pull = <0>;
++			};
++		};
++	};
++
++	__overrides__ {
++		sx1501-0-20          = <0>,"+0+2";
++		sx1501-1-20          = <0>,"+1+3";
++		sx1501-0-21          = <0>,"+0+4";
++		sx1501-1-21          = <0>,"+1+5";
++		sx1502-0-20          = <0>,"+0+6";
++		sx1502-1-20          = <0>,"+1+7";
++		sx1502-0-21          = <0>,"+0+8";
++		sx1502-1-21          = <0>,"+1+9";
++		sx1503-0-20          = <0>,"+0+10";
++		sx1503-1-20          = <0>,"+1+11";
++		sx1504-0-20          = <0>,"+0+12";
++		sx1504-1-20          = <0>,"+1+13";
++		sx1504-0-21          = <0>,"+0+14";
++		sx1504-1-21          = <0>,"+1+15";
++		sx1505-0-20          = <0>,"+0+16";
++		sx1505-1-20          = <0>,"+1+17";
++		sx1505-0-21          = <0>,"+0+18";
++		sx1505-1-21          = <0>,"+1+19";
++		sx1506-0-20          = <0>,"+0+20";
++		sx1506-1-20          = <0>,"+1+21";
++		sx1507-0-3E          = <0>,"+0+22";
++		sx1507-1-3E          = <0>,"+1+23";
++		sx1507-0-3F          = <0>,"+0+24";
++		sx1507-1-3F          = <0>,"+1+25";
++		sx1507-0-70          = <0>,"+0+26";
++		sx1507-1-70          = <0>,"+1+27";
++		sx1507-0-71          = <0>,"+0+28";
++		sx1507-1-71          = <0>,"+1+29";
++		sx1508-0-20          = <0>,"+0+30";
++		sx1508-1-20          = <0>,"+1+31";
++		sx1508-0-21          = <0>,"+0+32";
++		sx1508-1-21          = <0>,"+1+33";
++		sx1508-0-22          = <0>,"+0+34";
++		sx1508-1-22          = <0>,"+1+35";
++		sx1508-0-23          = <0>,"+0+36";
++		sx1508-1-23          = <0>,"+1+37";
++		sx1509-0-3E          = <0>,"+0+38";
++		sx1509-1-3E          = <0>,"+1+39";
++		sx1509-0-3F          = <0>,"+0+40";
++		sx1509-1-3F          = <0>,"+1+41";
++		sx1509-0-70          = <0>,"+0+42";
++		sx1509-1-70          = <0>,"+1+43";
++		sx1509-0-71          = <0>,"+0+44";
++		sx1509-1-71          = <0>,"+1+45";
++		sx1501-0-20-int-gpio = <0>,"+46+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1501_0_20>,"interrupts:0";
++		sx1501-1-20-int-gpio = <0>,"+47+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1501_1_20>,"interrupts:0";
++		sx1501-0-21-int-gpio = <0>,"+48+92",  <&sx150x_0_21_pins>,"brcm,pins:0", <&sx1501_0_21>,"interrupts:0";
++		sx1501-1-21-int-gpio = <0>,"+49+93",  <&sx150x_1_21_pins>,"brcm,pins:0", <&sx1501_1_21>,"interrupts:0";
++		sx1502-0-20-int-gpio = <0>,"+50+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1502_0_20>,"interrupts:0";
++		sx1502-1-20-int-gpio = <0>,"+51+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1502_1_20>,"interrupts:0";
++		sx1502-0-21-int-gpio = <0>,"+52+92",  <&sx150x_0_21_pins>,"brcm,pins:0", <&sx1502_0_21>,"interrupts:0";
++		sx1502-1-21-int-gpio = <0>,"+53+93",  <&sx150x_1_21_pins>,"brcm,pins:0", <&sx1502_1_21>,"interrupts:0";
++		sx1503-0-20-int-gpio = <0>,"+54+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1503_0_20>,"interrupts:0";
++		sx1503-1-20-int-gpio = <0>,"+55+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1503_1_20>,"interrupts:0";
++		sx1504-0-20-int-gpio = <0>,"+56+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1504_0_20>,"interrupts:0";
++		sx1504-1-20-int-gpio = <0>,"+57+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1504_1_20>,"interrupts:0";
++		sx1504-0-21-int-gpio = <0>,"+58+92",  <&sx150x_0_21_pins>,"brcm,pins:0", <&sx1504_0_21>,"interrupts:0";
++		sx1504-1-21-int-gpio = <0>,"+59+93",  <&sx150x_1_21_pins>,"brcm,pins:0", <&sx1504_1_21>,"interrupts:0";
++		sx1505-0-20-int-gpio = <0>,"+60+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1505_0_20>,"interrupts:0";
++		sx1505-1-20-int-gpio = <0>,"+61+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1505_1_20>,"interrupts:0";
++		sx1505-0-21-int-gpio = <0>,"+62+92",  <&sx150x_0_21_pins>,"brcm,pins:0", <&sx1505_0_21>,"interrupts:0";
++		sx1505-1-21-int-gpio = <0>,"+63+93",  <&sx150x_1_21_pins>,"brcm,pins:0", <&sx1505_1_21>,"interrupts:0";
++		sx1506-0-20-int-gpio = <0>,"+64+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1506_0_20>,"interrupts:0";
++		sx1506-1-20-int-gpio = <0>,"+65+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1506_1_20>,"interrupts:0";
++		sx1507-0-3E-int-gpio = <0>,"+66+98",  <&sx150x_0_3E_pins>,"brcm,pins:0", <&sx1507_0_3E>,"interrupts:0";
++		sx1507-1-3E-int-gpio = <0>,"+67+99",  <&sx150x_1_3E_pins>,"brcm,pins:0", <&sx1507_1_3E>,"interrupts:0";
++		sx1507-0-3F-int-gpio = <0>,"+68+100", <&sx150x_0_3F_pins>,"brcm,pins:0", <&sx1507_0_3F>,"interrupts:0";
++		sx1507-1-3F-int-gpio = <0>,"+69+101", <&sx150x_1_3F_pins>,"brcm,pins:0", <&sx1507_1_3F>,"interrupts:0";
++		sx1507-0-70-int-gpio = <0>,"+60+102", <&sx150x_0_70_pins>,"brcm,pins:0", <&sx1507_0_70>,"interrupts:0";
++		sx1507-1-70-int-gpio = <0>,"+71+103", <&sx150x_1_70_pins>,"brcm,pins:0", <&sx1507_1_70>,"interrupts:0";
++		sx1507-0-71-int-gpio = <0>,"+72+104", <&sx150x_0_71_pins>,"brcm,pins:0", <&sx1507_0_71>,"interrupts:0";
++		sx1507-1-71-int-gpio = <0>,"+73+105", <&sx150x_1_71_pins>,"brcm,pins:0", <&sx1507_1_71>,"interrupts:0";
++		sx1508-0-20-int-gpio = <0>,"+74+90",  <&sx150x_0_20_pins>,"brcm,pins:0", <&sx1508_0_20>,"interrupts:0";
++		sx1508-1-20-int-gpio = <0>,"+75+91",  <&sx150x_1_20_pins>,"brcm,pins:0", <&sx1508_1_20>,"interrupts:0";
++		sx1508-0-21-int-gpio = <0>,"+76+92",  <&sx150x_0_21_pins>,"brcm,pins:0", <&sx1508_0_21>,"interrupts:0";
++		sx1508-1-21-int-gpio = <0>,"+77+93",  <&sx150x_1_21_pins>,"brcm,pins:0", <&sx1508_1_21>,"interrupts:0";
++		sx1508-0-22-int-gpio = <0>,"+78+94",  <&sx150x_0_22_pins>,"brcm,pins:0", <&sx1508_0_22>,"interrupts:0";
++		sx1508-1-22-int-gpio = <0>,"+79+95",  <&sx150x_1_22_pins>,"brcm,pins:0", <&sx1508_1_22>,"interrupts:0";
++		sx1508-0-23-int-gpio = <0>,"+80+96",  <&sx150x_0_23_pins>,"brcm,pins:0", <&sx1508_0_23>,"interrupts:0";
++		sx1508-1-23-int-gpio = <0>,"+81+97",  <&sx150x_1_23_pins>,"brcm,pins:0", <&sx1508_1_23>,"interrupts:0";
++		sx1509-0-3E-int-gpio = <0>,"+82+98",  <&sx150x_0_3E_pins>,"brcm,pins:0", <&sx1509_0_3E>,"interrupts:0";
++		sx1509-1-3E-int-gpio = <0>,"+83+99",  <&sx150x_1_3E_pins>,"brcm,pins:0", <&sx1509_1_3E>,"interrupts:0";
++		sx1509-0-3F-int-gpio = <0>,"+84+100", <&sx150x_0_3F_pins>,"brcm,pins:0", <&sx1509_0_3F>,"interrupts:0";
++		sx1509-1-3F-int-gpio = <0>,"+85+101", <&sx150x_1_3F_pins>,"brcm,pins:0", <&sx1509_1_3F>,"interrupts:0";
++		sx1509-0-70-int-gpio = <0>,"+86+102", <&sx150x_0_70_pins>,"brcm,pins:0", <&sx1509_0_70>,"interrupts:0";
++		sx1509-1-70-int-gpio = <0>,"+87+103", <&sx150x_1_70_pins>,"brcm,pins:0", <&sx1509_1_70>,"interrupts:0";
++		sx1509-0-71-int-gpio = <0>,"+88+104", <&sx150x_0_71_pins>,"brcm,pins:0", <&sx1509_0_71>,"interrupts:0";
++		sx1509-1-71-int-gpio = <0>,"+89+105", <&sx150x_1_71_pins>,"brcm,pins:0", <&sx1509_1_71>,"interrupts:0";
++	};
++};
++
+diff --git a/arch/arm/boot/dts/overlays/tc358743-audio-overlay.dts b/arch/arm/boot/dts/overlays/tc358743-audio-overlay.dts
+new file mode 100644
+index 000000000000..047695bb0c71
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/tc358743-audio-overlay.dts
+@@ -0,0 +1,52 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions to add I2S audio from the Toshiba TC358743 HDMI to CSI2 bridge.
++// Requires tc358743 overlay to have been loaded to actually function.
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			tc358743_codec: tc358743-codec {
++				#sound-dai-cells = <0>;
++				compatible = "linux,spdif-dir";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		sound_overlay: __overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "tc358743";
++			simple-audio-card,bitclock-master = <&dailink0_slave>;
++			simple-audio-card,frame-master = <&dailink0_slave>;
++			status = "okay";
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++				dai-tdm-slot-num = <2>;
++				dai-tdm-slot-width = <32>;
++			};
++			dailink0_slave: simple-audio-card,codec {
++				sound-dai = <&tc358743_codec>;
++			};
++		};
++	};
++
++	__overrides__ {
++		card-name = <&sound_overlay>,"simple-audio-card,name";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/tc358743-overlay.dts b/arch/arm/boot/dts/overlays/tc358743-overlay.dts
+new file mode 100644
+index 000000000000..a1f8af36d2e7
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/tc358743-overlay.dts
+@@ -0,0 +1,107 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for Toshiba TC358743 HDMI to CSI2 bridge on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tc358743@0f {
++				compatible = "toshiba,tc358743";
++				reg = <0x0f>;
++				status = "okay";
++
++				clocks = <&tc358743_clk>;
++				clock-names = "refclk";
++
++				port {
++					tc358743: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <486000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&tc358743>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&tc358743>;
++		__overlay__ {
++			data-lanes = <1 2>;
++		};
++	};
++
++	fragment@3 {
++		target = <&tc358743>;
++		__dormant__ {
++			data-lanes = <1 2 3 4>;
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@6 {
++		target-path = "/";
++		__overlay__ {
++			tc358743_clk: bridge-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <27000000>;
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&csi1_ep>;
++		__overlay__ {
++			data-lanes = <1 2>;
++		};
++	};
++
++	fragment@8 {
++		target = <&csi1_ep>;
++		__dormant__ {
++			data-lanes = <1 2 3 4>;
++		};
++	};
++
++	__overrides__ {
++		4lane = <0>, "-2+3-7+8";
++		link-frequency = <&tc358743>,"link-frequencies#0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
+new file mode 100644
+index 000000000000..a102b09e3ab5
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
+@@ -0,0 +1,222 @@
++/*
++ * tinylcd35-overlay.dts
++ *
++ * -------------------------------------------------
++ * www.tinlylcd.com
++ * -------------------------------------------------
++ * Device---Driver-----BUS       GPIO's
++ * display  tinylcd35  spi0.0    25 24 18
++ * touch    ads7846    spi0.1    5
++ * rtc      ds1307     i2c1-0068
++ * rtc      pcf8563    i2c1-0051
++ * keypad   gpio-keys  --------- 17 22 27 23 28
++ *
++ *
++ * TinyLCD.com 3.5 inch TFT
++ *
++ *  Version 001
++ *  5/3/2015  -- Noralf Trønnes     Initial Device tree framework
++ *  10/3/2015 -- tinylcd@gmail.com  added ds1307 support.
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			tinylcd35_pins: tinylcd35_pins {
++				brcm,pins = <25 24 18>;
++				brcm,function = <1>; /* out */
++			};
++			tinylcd35_ts_pins: tinylcd35_ts_pins {
++				brcm,pins = <5>;
++				brcm,function = <0>; /* in */
++			};
++			keypad_pins: keypad_pins {
++				brcm,pins = <4 17 22 23 27>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <1>; /* down */
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			tinylcd35: tinylcd35@0{
++				compatible = "neosec,tinylcd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&tinylcd35_pins>,
++					    <&tinylcd35_ts_pins>;
++
++				spi-max-frequency = <48000000>;
++				rotate = <270>;
++				fps = <20>;
++				bgr;
++				buswidth = <8>;
++				reset-gpios = <&gpio 25 1>;
++				dc-gpios = <&gpio 24 0>;
++				led-gpios = <&gpio 18 0>;
++				debug = <0>;
++
++				init = <0x10000B0 0x80
++					0x10000C0 0x0A 0x0A
++					0x10000C1 0x01 0x01
++					0x10000C2 0x33
++					0x10000C5 0x00 0x42 0x80
++					0x10000B1 0xD0 0x11
++					0x10000B4 0x02
++					0x10000B6 0x00 0x22 0x3B
++					0x10000B7 0x07
++					0x1000036 0x58
++					0x10000F0 0x36 0xA5 0xD3
++					0x10000E5 0x80
++					0x10000E5 0x01
++					0x10000B3 0x00
++					0x10000E5 0x00
++					0x10000F0 0x36 0xA5 0x53
++					0x10000E0 0x00 0x35 0x33 0x00 0x00 0x00 0x00 0x35 0x33 0x00 0x00 0x00
++					0x100003A 0x55
++					0x1000011
++					0x2000001
++					0x1000029>;
++			};
++
++			tinylcd35_ts: tinylcd35_ts@1 {
++				compatible = "ti,ads7846";
++				reg = <1>;
++				status = "disabled";
++
++				spi-max-frequency = <2000000>;
++				interrupts = <5 2>; /* high-to-low edge triggered */
++				interrupt-parent = <&gpio>;
++				pendown-gpio = <&gpio 5 0>;
++				ti,x-plate-ohms = /bits/ 16 <100>;
++				ti,pressure-max = /bits/ 16 <255>;
++			};
++		};
++	};
++
++	/*  RTC    */
++
++	fragment@5 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			pcf8563: pcf8563@51 {
++				compatible = "nxp,pcf8563";
++				reg = <0x51>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2c1>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			ds1307: ds1307@68 {
++				compatible = "dallas,ds1307";
++				reg = <0x68>;
++				status = "okay";
++			};
++		};
++	};
++
++	/*
++	 * Values for input event code is found under the
++	 * 'Keys and buttons' heading in include/uapi/linux/input.h
++	 */
++	fragment@7 {
++		target-path = "/soc";
++		__overlay__ {
++			keypad: keypad {
++				compatible = "gpio-keys";
++				pinctrl-names = "default";
++				pinctrl-0 = <&keypad_pins>;
++				status = "disabled";
++				autorepeat;
++
++				button@17 {
++					label = "GPIO KEY_UP";
++					linux,code = <103>;
++					gpios = <&gpio 17 0>;
++				};
++				button@22 {
++					label = "GPIO KEY_DOWN";
++					linux,code = <108>;
++					gpios = <&gpio 22 0>;
++				};
++				button@27 {
++					label = "GPIO KEY_LEFT";
++					linux,code = <105>;
++					gpios = <&gpio 27 0>;
++				};
++				button@23 {
++					label = "GPIO KEY_RIGHT";
++					linux,code = <106>;
++					gpios = <&gpio 23 0>;
++				};
++				button@4 {
++					label = "GPIO KEY_ENTER";
++					linux,code = <28>;
++					gpios = <&gpio 4 0>;
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		speed =      <&tinylcd35>,"spi-max-frequency:0";
++		rotate =     <&tinylcd35>,"rotate:0";
++		fps =        <&tinylcd35>,"fps:0";
++		debug =      <&tinylcd35>,"debug:0";
++		touch =      <&tinylcd35_ts>,"status";
++		touchgpio =  <&tinylcd35_ts_pins>,"brcm,pins:0",
++			     <&tinylcd35_ts>,"interrupts:0",
++			     <&tinylcd35_ts>,"pendown-gpio:4";
++		xohms =      <&tinylcd35_ts>,"ti,x-plate-ohms;0";
++		rtc-pcf =    <0>,"=5";
++		rtc-ds =     <0>,"=6";
++		keypad =     <&keypad>,"status";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts b/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
+new file mode 100644
+index 000000000000..e69188503ca3
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/tpm-slb9670-overlay.dts
+@@ -0,0 +1,44 @@
++/*
++ * Device Tree overlay for the Infineon SLB9670 Trusted Platform Module add-on
++ * boards, which can be used as a secure key storage and hwrng.
++ * available as "Iridium SLB9670" by Infineon and "LetsTrust TPM" by pi3g.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++			slb9670: slb9670@1 {
++				compatible = "infineon,slb9670";
++				reg = <1>;	/* CE1 */
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <32000000>;
++				status = "okay";
++			};
++
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart0-overlay.dts b/arch/arm/boot/dts/overlays/uart0-overlay.dts
+new file mode 100755
+index 000000000000..73d563bbaabf
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart0-overlay.dts
+@@ -0,0 +1,32 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&uart0>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart0_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			uart0_pins: uart0_pins {
++				brcm,pins = <14 15>;
++				brcm,function = <4>; /* alt0 */
++				brcm,pull = <0 2>;
++			};
++		};
++	};
++
++	__overrides__ {
++		txd0_pin = <&uart0_pins>,"brcm,pins:0";
++		rxd0_pin = <&uart0_pins>,"brcm,pins:4";
++		pin_func = <&uart0_pins>,"brcm,function:0";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart1-overlay.dts b/arch/arm/boot/dts/overlays/uart1-overlay.dts
+new file mode 100644
+index 000000000000..986d725a2652
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart1-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&uart1>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart1_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			uart1_pins: uart1_pins {
++				brcm,pins = <14 15>;
++				brcm,function = <2>; /* alt5 */
++				brcm,pull = <0 2>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target-path = "/chosen";
++		__overlay__ {
++			bootargs = "8250.nr_uarts=1";
++		};
++	};
++
++	__overrides__ {
++		txd1_pin = <&uart1_pins>,"brcm,pins:0";
++		rxd1_pin = <&uart1_pins>,"brcm,pins:4";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart2-overlay.dts b/arch/arm/boot/dts/overlays/uart2-overlay.dts
+new file mode 100644
+index 000000000000..9face240aca1
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart2-overlay.dts
+@@ -0,0 +1,27 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&uart2>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart2_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&uart2_pins>;
++		__dormant__ {
++			brcm,pins = <0 1 2 3>;
++			brcm,pull = <0 2 2 0>;
++		};
++	};
++
++	__overrides__ {
++		ctsrts = <0>,"=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart3-overlay.dts b/arch/arm/boot/dts/overlays/uart3-overlay.dts
+new file mode 100644
+index 000000000000..ae9f9fe5ea1d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart3-overlay.dts
+@@ -0,0 +1,27 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&uart3>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart3_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&uart3_pins>;
++		__dormant__ {
++			brcm,pins = <4 5 6 7>;
++			brcm,pull = <0 2 2 0>;
++		};
++	};
++
++	__overrides__ {
++		ctsrts = <0>,"=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart4-overlay.dts b/arch/arm/boot/dts/overlays/uart4-overlay.dts
+new file mode 100644
+index 000000000000..ac004ffbadbf
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart4-overlay.dts
+@@ -0,0 +1,27 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&uart4>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart4_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&uart4_pins>;
++		__dormant__ {
++			brcm,pins = <8 9 10 11>;
++			brcm,pull = <0 2 2 0>;
++		};
++	};
++
++	__overrides__ {
++		ctsrts = <0>,"=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/uart5-overlay.dts b/arch/arm/boot/dts/overlays/uart5-overlay.dts
+new file mode 100644
+index 000000000000..04eaf376effe
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/uart5-overlay.dts
+@@ -0,0 +1,27 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target = <&uart5>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&uart5_pins>;
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&uart5_pins>;
++		__dormant__ {
++			brcm,pins = <12 13 14 15>;
++			brcm,pull = <0 2 2 0>;
++		};
++	};
++
++	__overrides__ {
++		ctsrts = <0>,"=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/udrc-overlay.dts b/arch/arm/boot/dts/overlays/udrc-overlay.dts
+new file mode 100644
+index 000000000000..ae7c37996894
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/udrc-overlay.dts
+@@ -0,0 +1,128 @@
++#include <dt-bindings/clock/bcm2835.h>
++/*
++ * Device tree overlay for the Universal Digital Radio Controller
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    fragment@0 {
++        target = <&i2s>;
++        __overlay__ {
++            clocks = <&clocks BCM2835_CLOCK_PCM>;
++            clock-names = "pcm";
++            status = "okay";
++        };
++    };
++
++    fragment@1 {
++        target-path = "/";
++        __overlay__ {
++            regulators {
++                compatible = "simple-bus";
++                #address-cells = <1>;
++                #size-cells = <0>;
++
++                udrc0_ldoin: udrc0_ldoin {
++                    compatible = "regulator-fixed";
++                    regulator-name = "ldoin";
++                    regulator-min-microvolt = <3300000>;
++                    regulator-max-microvolt = <3300000>;
++                    regulator-always-on;
++                };
++            };
++        };
++    };
++
++    fragment@2 {
++        target = <&i2c1>;
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            status = "okay";
++            clocks = <&clocks BCM2835_CLOCK_VPU>;
++            clock-frequency = <400000>;
++
++            tlv320aic32x4: tlv320aic32x4@18 {
++                compatible = "ti,tlv320aic32x4";
++                #sound-dai-cells = <0>;
++                reg = <0x18>;
++                status = "okay";
++
++                clocks = <&clocks BCM2835_CLOCK_GP0>;
++                clock-names = "mclk";
++                assigned-clocks = <&clocks BCM2835_CLOCK_GP0>;
++                assigned-clock-rates = <25000000>;
++
++                pinctrl-names = "default";
++                pinctrl-0 = <&gpclk0_pin &aic3204_reset>;
++
++                reset-gpios = <&gpio 13 0>;
++
++                iov-supply = <&udrc0_ldoin>;
++                ldoin-supply = <&udrc0_ldoin>;
++            };
++        };
++    };
++
++    fragment@3 {
++        target = <&sound>;
++        snd: __overlay__ {
++            compatible = "simple-audio-card";
++            i2s-controller = <&i2s>;
++            status = "okay";
++
++            simple-audio-card,name = "udrc";
++            simple-audio-card,format = "i2s";
++
++            simple-audio-card,bitclock-master = <&dailink0_master>;
++            simple-audio-card,frame-master = <&dailink0_master>;
++
++            simple-audio-card,widgets =
++                "Line", "Line In",
++                "Line", "Line Out";
++
++            simple-audio-card,routing =
++                "IN1_R", "Line In",
++                "IN1_L", "Line In",
++                "CM_L", "Line In",
++                "CM_R", "Line In",
++                "Line Out", "LOR",
++                "Line Out", "LOL";
++
++            dailink0_master: simple-audio-card,cpu {
++                sound-dai = <&i2s>;
++            };
++
++            simple-audio-card,codec {
++                sound-dai = <&tlv320aic32x4>;
++            };
++        };
++    };
++
++    fragment@4 {
++        target = <&gpio>;
++        __overlay__ {
++            gpclk0_pin: gpclk0_pin {
++                brcm,pins = <4>;
++                brcm,function = <4>;
++            };
++
++            aic3204_reset: aic3204_reset {
++                brcm,pins = <13>;
++                brcm,function = <1>;
++                brcm,pull = <1>;
++            };
++
++            aic3204_gpio: aic3204_gpio {
++                brcm,pins = <26>;
++            };
++        };
++    };
++
++    __overrides__ {
++        alsaname = <&snd>, "simple-audio-card,name";
++    };
++};
+diff --git a/arch/arm/boot/dts/overlays/upstream-overlay.dts b/arch/arm/boot/dts/overlays/upstream-overlay.dts
+new file mode 100644
+index 000000000000..2e9dcd4f5f0a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/upstream-overlay.dts
+@@ -0,0 +1,113 @@
++// redo: ovmerge -c vc4-kms-v3d-overlay.dts,cma-default dwc2-overlay.dts,dr_mode=otg
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target = <&cma>;
++		__dormant__ {
++			size = <0x10000000>;
++		};
++	};
++	fragment@1 {
++		target = <&i2c2>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@2 {
++		target = <&fb>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@3 {
++		target = <&pixelvalve0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@4 {
++		target = <&pixelvalve1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@5 {
++		target = <&pixelvalve2>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@6 {
++		target = <&hvs>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@7 {
++		target = <&hdmi>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@8 {
++		target = <&v3d>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@9 {
++		target = <&vc4>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@10 {
++		target = <&clocks>;
++		__overlay__ {
++			claim-clocks = <BCM2835_PLLD_DSI0 BCM2835_PLLD_DSI1 BCM2835_PLLH_AUX BCM2835_PLLH_PIX>;
++		};
++	};
++	fragment@11 {
++		target = <&vec>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@12 {
++		target = <&txp>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@13 {
++		target = <&hdmi>;
++		__dormant__ {
++			dmas;
++		};
++	};
++	fragment@14 {
++		target = <&audio>;
++		__overlay__ {
++			brcm,disable-hdmi;
++		};
++	};
++	fragment@15 {
++		target = <&usb>;
++		#address-cells = <1>;
++		#size-cells = <1>;
++		__overlay__ {
++			compatible = "brcm,bcm2835-usb";
++			dr_mode = "otg";
++			g-np-tx-fifo-size = <32>;
++			g-rx-fifo-size = <558>;
++			g-tx-fifo-size = <512 512 512 512 512 256 256>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+new file mode 100644
+index 000000000000..6195e02bf9ff
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+@@ -0,0 +1,161 @@
++// redo: ovmerge -c vc4-kms-v3d-pi4-overlay.dts,cma-default dwc2-overlay.dts,dr_mode=otg
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target = <&cma>;
++		__dormant__ {
++			size = <0x10000000>;
++		};
++	};
++	fragment@1 {
++		target = <&ddc0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@2 {
++		target = <&ddc1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@3 {
++		target = <&hdmi0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@4 {
++		target = <&hdmi1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@5 {
++		target = <&hvs>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@6 {
++		target = <&pixelvalve0>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@7 {
++		target = <&pixelvalve1>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@8 {
++		target = <&pixelvalve2>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@9 {
++		target = <&pixelvalve3>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@10 {
++		target = <&pixelvalve4>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@11 {
++		target = <&v3d>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@12 {
++		target = <&vc4>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@13 {
++		target = <&txp>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@14 {
++		target = <&fb>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@15 {
++		target = <&firmwarekms>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@16 {
++		target = <&vec>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@17 {
++		target = <&hdmi0>;
++		__dormant__ {
++			dmas;
++		};
++	};
++	fragment@18 {
++		target = <&hdmi1>;
++		__dormant__ {
++			dmas;
++		};
++	};
++	fragment@19 {
++		target = <&audio>;
++		__overlay__ {
++			brcm,disable-hdmi;
++		};
++	};
++	fragment@20 {
++		target = <&dvp>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@21 {
++		target = <&pixelvalve3>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++	fragment@22 {
++		target = <&vec>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++	fragment@23 {
++		target = <&usb>;
++		#address-cells = <1>;
++		#size-cells = <1>;
++		__overlay__ {
++			compatible = "brcm,bcm2835-usb";
++			dr_mode = "otg";
++			g-np-tx-fifo-size = <32>;
++			g-rx-fifo-size = <558>;
++			g-tx-fifo-size = <512 512 512 512 512 256 256>;
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts
+new file mode 100644
+index 000000000000..ca344492bed8
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts
+@@ -0,0 +1,40 @@
++/*
++ * vc4-fkms-v3d-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "cma-overlay.dts"
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@1 {
++		target = <&fb>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&firmwarekms>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&v3d>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&vc4>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/vc4-kms-kippah-7inch-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-kippah-7inch-overlay.dts
+new file mode 100644
+index 000000000000..b03394844abd
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-kippah-7inch-overlay.dts
+@@ -0,0 +1,43 @@
++/*
++ * vc4-kms-v3d-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			panel: panel {
++				compatible = "ontat,yx700wv03", "simple-panel";
++
++				port {
++					panel_in: endpoint {
++						remote-endpoint = <&dpi_out>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&dpi>;
++		__overlay__  {
++			status = "okay";
++
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi_18bit_gpio0>;
++
++			port {
++				dpi_out: endpoint@0 {
++					remote-endpoint = <&panel_in>;
++				};
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+new file mode 100644
+index 000000000000..6d34a2bff49b
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+@@ -0,0 +1,122 @@
++/*
++ * vc4-kms-v3d-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++#include "cma-overlay.dts"
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@1 {
++		target = <&i2c2>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&fb>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target = <&pixelvalve0>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&pixelvalve1>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target = <&pixelvalve2>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@6 {
++		target = <&hvs>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@7 {
++		target = <&hdmi>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@8 {
++		target = <&v3d>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@9 {
++		target = <&vc4>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@10 {
++		target = <&clocks>;
++		__overlay__  {
++			claim-clocks = <
++				BCM2835_PLLD_DSI0
++				BCM2835_PLLD_DSI1
++				BCM2835_PLLH_AUX
++				BCM2835_PLLH_PIX
++			>;
++		};
++	};
++
++	fragment@11 {
++		target = <&vec>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@12 {
++		target = <&txp>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@13 {
++		target = <&hdmi>;
++		__dormant__  {
++			dmas;
++		};
++	};
++
++	fragment@14 {
++		target = <&audio>;
++		__overlay__  {
++		    brcm,disable-hdmi;
++		};
++	};
++
++	__overrides__ {
++		audio   = <0>,"!13", <0>,"=14";
++		noaudio = <0>,"=13", <0>,"!14";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+new file mode 100644
+index 000000000000..f721f12d729d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+@@ -0,0 +1,186 @@
++/*
++ * vc4-kms-v3d-pi4-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++#include "cma-overlay.dts"
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@1 {
++		target = <&ddc0>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&ddc1>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&hdmi0>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&hdmi1>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target = <&hvs>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@6 {
++		target = <&pixelvalve0>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@7 {
++		target = <&pixelvalve1>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@8 {
++		target = <&pixelvalve2>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@9 {
++		target = <&pixelvalve3>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@10 {
++		target = <&pixelvalve4>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@11 {
++		target = <&v3d>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@12 {
++		target = <&vc4>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@13 {
++		target = <&txp>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@14 {
++		target = <&fb>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@15 {
++		target = <&firmwarekms>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@16 {
++		target = <&vec>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@17 {
++		target = <&hdmi0>;
++		__dormant__  {
++			dmas;
++		};
++	};
++
++	fragment@18 {
++		target = <&hdmi1>;
++		__dormant__  {
++			dmas;
++		};
++	};
++
++	fragment@19 {
++		target = <&audio>;
++		__overlay__  {
++		    brcm,disable-hdmi;
++		};
++	};
++
++	fragment@20 {
++		target = <&dvp>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@21 {
++		target = <&pixelvalve3>;
++		__dormant__  {
++			status = "okay";
++		};
++	};
++
++	fragment@22 {
++		target = <&vec>;
++		__dormant__  {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		audio   = <0>,"!17";
++		audio1   = <0>,"!18";
++		noaudio = <0>,"=17", <0>,"=18", <0>,"!19";
++		composite = <0>, "!1",
++			    <0>, "!2",
++			    <0>, "!3",
++			    <0>, "!4",
++			    <0>, "!6",
++			    <0>, "!7",
++			    <0>, "!8",
++			    <0>, "!9",
++			    <0>, "!10",
++			    <0>, "!16",
++			    <0>, "=21",
++			    <0>, "=22";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/vga666-overlay.dts b/arch/arm/boot/dts/overlays/vga666-overlay.dts
+new file mode 100644
+index 000000000000..a4968d180a5d
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vga666-overlay.dts
+@@ -0,0 +1,30 @@
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	// There is no VGA driver module, but we need a platform device
++	// node (that doesn't already use pinctrl) to hang the pinctrl
++	// reference on - leds will do
++
++	fragment@0 {
++		target = <&leds>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&vga666_pins>;
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			vga666_pins: vga666_pins {
++				brcm,pins = <2 3 4 5 6 7 8 9 10 11 12
++					     13 14 15 16 17 18 19 20 21>;
++				brcm,function = <6>; /* alt2 */
++				brcm,pull = <0>; /* no pull */
++			};
++		};
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
+new file mode 100644
+index 000000000000..f44e325bc1f2
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
+@@ -0,0 +1,40 @@
++// Definitions for w1-gpio module (without external pullup)
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++
++			w1: onewire@0 {
++				compatible = "w1-gpio";
++				pinctrl-names = "default";
++				pinctrl-0 = <&w1_pins>;
++				gpios = <&gpio 4 0>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			w1_pins: w1_pins@0 {
++				brcm,pins = <4>;
++				brcm,function = <0>; // in (initially)
++				brcm,pull = <0>; // off
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin =       <&w1>,"gpios:4",
++				<&w1>,"reg:0",
++				<&w1_pins>,"brcm,pins:0",
++				<&w1_pins>,"reg:0";
++		pullup;		// Silently ignore unneeded parameter
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
+new file mode 100644
+index 000000000000..953c6a1aeab9
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
+@@ -0,0 +1,42 @@
++// Definitions for w1-gpio module (with external pullup)
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++
++			w1: onewire@0 {
++				compatible = "w1-gpio";
++				pinctrl-names = "default";
++				pinctrl-0 = <&w1_pins>;
++				gpios = <&gpio 4 0>, <&gpio 5 1>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			w1_pins: w1_pins@0 {
++				brcm,pins = <4 5>;
++				brcm,function = <0 1>; // in out
++				brcm,pull = <0 0>; // off off
++			};
++		};
++	};
++
++	__overrides__ {
++		gpiopin =       <&w1>,"gpios:4",
++				<&w1>,"reg:0",
++				<&w1_pins>,"brcm,pins:0",
++				<&w1_pins>,"reg:0";
++		extpullup =     <&w1>,"gpios:16",
++				<&w1_pins>,"brcm,pins:4";
++		pullup;		// Silently ignore unneeded parameter
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/w5500-overlay.dts b/arch/arm/boot/dts/overlays/w5500-overlay.dts
+new file mode 100644
+index 000000000000..4d3e66296753
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/w5500-overlay.dts
+@@ -0,0 +1,63 @@
++// Overlay for the Wiznet w5500 Ethernet Controller
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&spi0>;
++		__overlay__ {
++			/* needed to avoid dtc warning */
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			status = "okay";
++
++			eth1: w5500@0{
++				compatible = "wiznet,w5500";
++				reg = <0>; /* CE0 */
++				pinctrl-names = "default";
++				pinctrl-0 = <&eth1_pins>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 0x8>;
++				spi-max-frequency = <30000000>;
++//				local-mac-address = [aa bb cc dd ee ff];
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&gpio>;
++		__overlay__ {
++			eth1_pins: eth1_pins {
++				brcm,pins = <25>;
++				brcm,function = <0>; /* in */
++				brcm,pull = <0>; /* none */
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&eth1>, "interrupts:0",
++		          <&eth1_pins>, "brcm,pins:0";
++		speed   = <&eth1>, "spi-max-frequency:0";
++		cs      = <&eth1>, "reg:0",
++			  <0>, "!0=1";
++	};
++};
+diff --git a/arch/arm/boot/dts/overlays/wittypi-overlay.dts b/arch/arm/boot/dts/overlays/wittypi-overlay.dts
+new file mode 100644
+index 000000000000..71ce806186de
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/wittypi-overlay.dts
+@@ -0,0 +1,44 @@
++/*
++ * Device Tree overlay for Witty Pi extension board by UUGear
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&leds>;
++		__overlay__ {
++			compatible = "gpio-leds";
++			wittypi_led: wittypi_led {
++				label = "wittypi_led";
++				linux,default-trigger = "default-on";
++				gpios = <&gpio 17 0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			rtc: ds1337@68 {
++				compatible = "dallas,ds1337";
++				reg = <0x68>;
++				wakeup-source;
++			};
++		};
++	};
++
++	__overrides__ {
++		led_gpio =	<&wittypi_led>,"gpios:4";
++		led_trigger =	<&wittypi_led>,"linux,default-trigger";
++	};
++
++};
+diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
+index 9b1170658d60..cc6c25629057 100644
+--- a/arch/arm64/boot/dts/Makefile
++++ b/arch/arm64/boot/dts/Makefile
+@@ -30,3 +30,5 @@ subdir-y += ti
+ subdir-y += toshiba
+ subdir-y += xilinx
+ subdir-y += zte
++
++subdir-y += overlays
+diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
+index cb7de8d99223..c3eaf8d63ee4 100644
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -1,9 +1,21 @@
+ # SPDX-License-Identifier: GPL-2.0
+-dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb \
+-			      bcm2837-rpi-3-a-plus.dtb \
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-a-plus.dtb \
+ 			      bcm2837-rpi-3-b.dtb \
+ 			      bcm2837-rpi-3-b-plus.dtb \
+ 			      bcm2837-rpi-cm3-io3.dtb
++dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-2-b.dtb
++dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
++dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-cm3.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb
+ 
+ subdir-y	+= northstar2
+ subdir-y	+= stingray
++
++# Enable fixups to support overlays on BCM2835 platforms
++ifeq ($(CONFIG_ARCH_BCM2835),y)
++	DTC_FLAGS ?= -@
++endif
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
+new file mode 100644
+index 000000000000..116cdbf94b9b
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
+@@ -0,0 +1,3 @@
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2710-rpi-2-b.dts"
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
+new file mode 100644
+index 000000000000..d9242ff77079
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
+@@ -0,0 +1,3 @@
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2710-rpi-3-b-plus.dts"
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
+new file mode 100644
+index 000000000000..deb33441da95
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
+@@ -0,0 +1,3 @@
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2710-rpi-3-b.dts"
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
+new file mode 100644
+index 000000000000..1c2560017c02
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
+@@ -0,0 +1,3 @@
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2710-rpi-cm3.dts"
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+index d24c53682e44..1fd86f81f542 100644
+--- a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+@@ -1,2 +1,3 @@
+-// SPDX-License-Identifier: GPL-2.0
+-#include "arm/bcm2711-rpi-4-b.dts"
++#define RPI364
++
++#include "../../../../arm/boot/dts/bcm2711-rpi-4-b.dts"
+diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-csi1-2lane.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-csi1-2lane.dtsi
+new file mode 120000
+index 000000000000..e5c400284467
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-csi1-2lane.dtsi
+@@ -0,0 +1 @@
++../../../../arm/boot/dts/bcm283x-rpi-csi1-2lane.dtsi
+\ No newline at end of file
+diff --git a/arch/arm64/boot/dts/broadcom/bcm283x-rpi-lan7515.dtsi b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-lan7515.dtsi
+new file mode 120000
+index 000000000000..fc4c05bbe7fd
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm283x-rpi-lan7515.dtsi
+@@ -0,0 +1 @@
++../../../../arm/boot/dts/bcm283x-rpi-lan7515.dtsi
+\ No newline at end of file
+diff --git a/arch/arm64/boot/dts/overlays b/arch/arm64/boot/dts/overlays
+new file mode 120000
+index 000000000000..ded08646b6f6
+--- /dev/null
++++ b/arch/arm64/boot/dts/overlays
+@@ -0,0 +1 @@
++../../../arm/boot/dts/overlays
+\ No newline at end of file
+diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
+index 50d580d77ae9..079b83308011 100644
+--- a/scripts/Makefile.dtbinst
++++ b/scripts/Makefile.dtbinst
+@@ -18,9 +18,10 @@ include scripts/Kbuild.include
+ include $(src)/Makefile
+ 
+ dtbs    := $(addprefix $(dst)/, $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS),$(dtb-)))
++dtbos   := $(addprefix $(dst)/, $(dtbo-y) $(if $(CONFIG_OF_ALL_DTBS),$(dtb-)))
+ subdirs := $(addprefix $(obj)/, $(subdir-y) $(subdir-m))
+ 
+-__dtbs_install: $(dtbs) $(subdirs)
++__dtbs_install: $(dtbs) $(dtbos) $(subdirs)
+ 	@:
+ 
+ quiet_cmd_dtb_install = INSTALL $@
+@@ -29,6 +30,9 @@ quiet_cmd_dtb_install = INSTALL $@
+ $(dst)/%.dtb: $(obj)/%.dtb
+ 	$(call cmd,dtb_install)
+ 
++$(dst)/%.dtbo: $(obj)/%.dtbo
++	$(call cmd,dtb_install)
++
+ PHONY += $(subdirs)
+ $(subdirs):
+ 	$(Q)$(MAKE) $(dtbinst)=$@ dst=$(patsubst $(obj)/%,$(dst)/%,$@)
+diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
+index 94133708889d..9c0df5bde46c 100644
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -281,6 +281,7 @@ DTC_FLAGS += -Wno-interrupt_provider
+ ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
+ DTC_FLAGS += -Wno-unit_address_vs_reg \
+ 	-Wno-unit_address_format \
++	-Wno-gpios_property \
+ 	-Wno-avoid_unnecessary_addr_size \
+ 	-Wno-alias_paths \
+ 	-Wno-graph_child_address \
+@@ -341,6 +342,18 @@ endef
+ $(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
+ 	$(call if_changed_rule,dtc,yaml)
+ 
++quiet_cmd_dtco = DTCO    $@
++cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
++	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
++	$(DTC) -@ -H epapr -O dtb -o $@ -b 0 \
++		-i $(dir $<) $(DTC_FLAGS) \
++		-Wno-interrupts_property \
++		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
++	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
++
++$(obj)/%.dtbo: $(src)/%-overlay.dts FORCE
++	$(call if_changed_dep,dtco)
++
+ dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
+ 
+ # Bzip2
+-- 
+2.30.2
+
diff --git a/target/linux/bcm27xx/patches-5.10/950-0055-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch b/target/linux/bcm27xx/patches-5.10/950-0055-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch
new file mode 100644
index 0000000000..36622bb30a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0055-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch
@@ -0,0 +1,169 @@
+From 3bb38201fc6c1aef7709c3c744824db23f06c629 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 6 Feb 2015 13:50:57 +0000
+Subject: [PATCH] BCM270x_DT: Add pwr_led, and the required "input"
+ trigger
+
+The "input" trigger makes the associated GPIO an input.  This is to support
+the Raspberry Pi PWR LED, which is driven by external hardware in normal use.
+
+N.B. pwr_led is not available on Model A or B boards.
+
+leds-gpio: Implement the brightness_get method
+
+The power LED uses some clever logic that means it is driven
+by a voltage measuring circuit when configured as input, otherwise
+it is driven by the GPIO output value. This patch wires up the
+brightness_get method for leds-gpio so that user-space can monitor
+the LED value via /sys/class/gpio/led1/brightness. Using the input
+trigger this returns an indication of the system power health,
+otherwise it is just whatever value the trigger has written most
+recently.
+
+See: https://github.com/raspberrypi/linux/issues/1064
+---
+ drivers/leds/leds-gpio.c             | 17 ++++++++-
+ drivers/leds/trigger/Kconfig         |  7 ++++
+ drivers/leds/trigger/Makefile        |  1 +
+ drivers/leds/trigger/ledtrig-input.c | 55 ++++++++++++++++++++++++++++
+ include/linux/leds.h                 |  3 ++
+ 5 files changed, 82 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/leds/trigger/ledtrig-input.c
+
+--- a/drivers/leds/leds-gpio.c
++++ b/drivers/leds/leds-gpio.c
+@@ -46,8 +46,15 @@ static void gpio_led_set(struct led_clas
+ 		led_dat->platform_gpio_blink_set(led_dat->gpiod, level,
+ 						 NULL, NULL);
+ 		led_dat->blinking = 0;
++	} else if (led_dat->cdev.flags & SET_GPIO_INPUT) {
++		gpiod_direction_input(led_dat->gpiod);
++		led_dat->cdev.flags &= ~SET_GPIO_INPUT;
++	} else if (led_dat->cdev.flags & SET_GPIO_OUTPUT) {
++		gpiod_direction_output(led_dat->gpiod, level);
++		led_dat->cdev.flags &= ~SET_GPIO_OUTPUT;
+ 	} else {
+-		if (led_dat->can_sleep)
++		if (led_dat->can_sleep ||
++			(led_dat->cdev.flags & (SET_GPIO_INPUT | SET_GPIO_OUTPUT) ))
+ 			gpiod_set_value_cansleep(led_dat->gpiod, level);
+ 		else
+ 			gpiod_set_value(led_dat->gpiod, level);
+@@ -61,6 +68,13 @@ static int gpio_led_set_blocking(struct
+ 	return 0;
+ }
+ 
++static enum led_brightness gpio_led_get(struct led_classdev *led_cdev)
++{
++	struct gpio_led_data *led_dat =
++		container_of(led_cdev, struct gpio_led_data, cdev);
++	return gpiod_get_value_cansleep(led_dat->gpiod) ? LED_FULL : LED_OFF;
++}
++
+ static int gpio_blink_set(struct led_classdev *led_cdev,
+ 	unsigned long *delay_on, unsigned long *delay_off)
+ {
+@@ -89,6 +103,7 @@ static int create_gpio_led(const struct
+ 		led_dat->platform_gpio_blink_set = blink_set;
+ 		led_dat->cdev.blink_set = gpio_blink_set;
+ 	}
++	led_dat->cdev.brightness_get = gpio_led_get;
+ 	if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) {
+ 		state = gpiod_get_value_cansleep(led_dat->gpiod);
+ 		if (state < 0)
+--- a/drivers/leds/trigger/Kconfig
++++ b/drivers/leds/trigger/Kconfig
+@@ -114,6 +114,13 @@ config LEDS_TRIGGER_CAMERA
+ 	  This enables direct flash/torch on/off by the driver, kernel space.
+ 	  If unsure, say Y.
+ 
++config LEDS_TRIGGER_INPUT
++	tristate "LED Input Trigger"
++	depends on LEDS_TRIGGERS
++	help
++	  This allows the GPIOs assigned to be LEDs to be initialised to inputs.
++	  If unsure, say Y.
++
+ config LEDS_TRIGGER_PANIC
+ 	bool "LED Panic Trigger"
+ 	help
+--- a/drivers/leds/trigger/Makefile
++++ b/drivers/leds/trigger/Makefile
+@@ -11,6 +11,7 @@ obj-$(CONFIG_LEDS_TRIGGER_ACTIVITY)	+= l
+ obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
+ obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT)	+= ledtrig-transient.o
+ obj-$(CONFIG_LEDS_TRIGGER_CAMERA)	+= ledtrig-camera.o
++obj-$(CONFIG_LEDS_TRIGGER_INPUT)	+= ledtrig-input.o
+ obj-$(CONFIG_LEDS_TRIGGER_PANIC)	+= ledtrig-panic.o
+ obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
+ obj-$(CONFIG_LEDS_TRIGGER_PATTERN)	+= ledtrig-pattern.o
+--- /dev/null
++++ b/drivers/leds/trigger/ledtrig-input.c
+@@ -0,0 +1,55 @@
++/*
++ * Set LED GPIO to Input "Trigger"
++ *
++ * Copyright 2015 Phil Elwell <phil@raspberrypi.org>
++ *
++ * Based on Nick Forbes's ledtrig-default-on.c.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/leds.h>
++#include <linux/gpio.h>
++#include "../leds.h"
++
++static int input_trig_activate(struct led_classdev *led_cdev)
++{
++	led_cdev->flags |= SET_GPIO_INPUT;
++	led_set_brightness(led_cdev, 0);
++	return 0;
++}
++
++static void input_trig_deactivate(struct led_classdev *led_cdev)
++{
++	led_cdev->flags |= SET_GPIO_OUTPUT;
++	led_set_brightness(led_cdev, 0);
++}
++
++static struct led_trigger input_led_trigger = {
++	.name     = "input",
++	.activate = input_trig_activate,
++	.deactivate = input_trig_deactivate,
++};
++
++static int __init input_trig_init(void)
++{
++	return led_trigger_register(&input_led_trigger);
++}
++
++static void __exit input_trig_exit(void)
++{
++	led_trigger_unregister(&input_led_trigger);
++}
++
++module_init(input_trig_init);
++module_exit(input_trig_exit);
++
++MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.org>");
++MODULE_DESCRIPTION("Set LED GPIO to Input \"trigger\"");
++MODULE_LICENSE("GPL");
+--- a/include/linux/leds.h
++++ b/include/linux/leds.h
+@@ -79,6 +79,9 @@ struct led_classdev {
+ #define LED_BRIGHT_HW_CHANGED	BIT(21)
+ #define LED_RETAIN_AT_SHUTDOWN	BIT(22)
+ #define LED_INIT_DEFAULT_TRIGGER BIT(23)
++	/* Additions for Raspberry Pi PWR LED */
++#define SET_GPIO_INPUT		BIT(30)
++#define SET_GPIO_OUTPUT		BIT(31)
+ 
+ 	/* set_brightness_work / blink_timer flags, atomic, private. */
+ 	unsigned long		work_flags;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0056-Added-Device-IDs-for-August-DVB-T-205.patch b/target/linux/bcm27xx/patches-5.10/950-0056-Added-Device-IDs-for-August-DVB-T-205.patch
new file mode 100644
index 0000000000..ba2cf0d77a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0056-Added-Device-IDs-for-August-DVB-T-205.patch
@@ -0,0 +1,22 @@
+From 6bfe5935985ffc3b5365877db6e8b90ba4924540 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 3 Jul 2013 00:54:08 +0100
+Subject: [PATCH] Added Device IDs for August DVB-T 205
+
+---
+ drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
++++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+@@ -1953,6 +1953,10 @@ static const struct usb_device_id rtl28x
+ 		&rtl28xxu_props, "Compro VideoMate U650F", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_KWORLD_2, 0xd394,
+ 		&rtl28xxu_props, "MaxMedia HU394-T", NULL) },
++	{ DVB_USB_DEVICE(USB_VID_GTEK, 0xb803 /*USB_PID_AUGUST_DVBT205*/,
++		&rtl28xxu_props, "August DVB-T 205", NULL) },
++	{ DVB_USB_DEVICE(USB_VID_GTEK, 0xa803 /*USB_PID_AUGUST_DVBT205*/,
++		&rtl28xxu_props, "August DVB-T 205", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_LEADTEK, 0x6a03,
+ 		&rtl28xxu_props, "Leadtek WinFast DTV Dongle mini", NULL) },
+ 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0057-Improve-__copy_to_user-and-__copy_from_user-performa.patch b/target/linux/bcm27xx/patches-5.10/950-0057-Improve-__copy_to_user-and-__copy_from_user-performa.patch
new file mode 100644
index 0000000000..7fff55b50c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0057-Improve-__copy_to_user-and-__copy_from_user-performa.patch
@@ -0,0 +1,1586 @@
+From a013e78cd135c415124496edd439b1031102c33c Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 28 Nov 2016 16:50:04 +0000
+Subject: [PATCH] Improve __copy_to_user and __copy_from_user
+ performance
+
+Provide a __copy_from_user that uses memcpy. On BCM2708, use
+optimised memcpy/memmove/memcmp/memset implementations.
+
+arch/arm: Add mmiocpy/set aliases for memcpy/set
+
+See: https://github.com/raspberrypi/linux/issues/1082
+
+copy_from_user: CPU_SW_DOMAIN_PAN compatibility
+
+The downstream copy_from_user acceleration must also play nice with
+CONFIG_CPU_SW_DOMAIN_PAN.
+
+See: https://github.com/raspberrypi/linux/issues/1381
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+Fix copy_from_user if BCM2835_FAST_MEMCPY=n
+
+The change which introduced CONFIG_BCM2835_FAST_MEMCPY unconditionally
+changed the behaviour of arm_copy_from_user. The page pinning code
+is not safe on ARMv7 if LPAE & high memory is enabled and causes
+crashes which look like PTE corruption.
+
+Make __copy_from_user_memcpy conditional on CONFIG_2835_FAST_MEMCPY=y
+which is really an ARMv6 / Pi1 optimization and not necessary on newer
+ARM processors.
+
+arm: fix mmap unlocks in uaccess_with_memcpy.c
+
+This is a regression that was added with the commit 192a4e923ef092924dd013e7326f2ec520ee4783 as of rpi-5.8.y, since that is when the move to the mmap locking API was introduced - d8ed45c5dcd455fc5848d47f86883a1b872ac0d0
+
+The issue is that when the patch to improve performance for the __copy_to_user and __copy_from_user functions were added for the Raspberry Pi, some of the mmaps were incorrectly mapped to write instead of read. This would cause a verity of issues, and in my case, prevent the booting of a squashfs filesystem on rpi-5.8-y and above. An example of the panic you would see from this can be seen at https://pastebin.com/raw/jBz5xCzL
+
+Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
+Signed-off-by: Christopher Blake <chrisrblake93@gmail.com>
+---
+ arch/arm/include/asm/string.h      |   5 +
+ arch/arm/include/asm/uaccess.h     |   3 +
+ arch/arm/lib/Makefile              |  14 +-
+ arch/arm/lib/arm-mem.h             | 159 +++++++++
+ arch/arm/lib/copy_from_user.S      |   4 +-
+ arch/arm/lib/exports_rpi.c         |  37 +++
+ arch/arm/lib/memcmp_rpi.S          | 285 ++++++++++++++++
+ arch/arm/lib/memcpy_rpi.S          |  61 ++++
+ arch/arm/lib/memcpymove.h          | 506 +++++++++++++++++++++++++++++
+ arch/arm/lib/memmove_rpi.S         |  61 ++++
+ arch/arm/lib/memset_rpi.S          | 128 ++++++++
+ arch/arm/lib/uaccess_with_memcpy.c | 130 +++++++-
+ arch/arm/mach-bcm/Kconfig          |   7 +
+ 13 files changed, 1394 insertions(+), 6 deletions(-)
+ create mode 100644 arch/arm/lib/arm-mem.h
+ create mode 100644 arch/arm/lib/exports_rpi.c
+ create mode 100644 arch/arm/lib/memcmp_rpi.S
+ create mode 100644 arch/arm/lib/memcpy_rpi.S
+ create mode 100644 arch/arm/lib/memcpymove.h
+ create mode 100644 arch/arm/lib/memmove_rpi.S
+ create mode 100644 arch/arm/lib/memset_rpi.S
+
+--- a/arch/arm/include/asm/string.h
++++ b/arch/arm/include/asm/string.h
+@@ -39,4 +39,9 @@ static inline void *memset64(uint64_t *p
+ 	return __memset64(p, v, n * 8, v >> 32);
+ }
+ 
++#ifdef CONFIG_BCM2835_FAST_MEMCPY
++#define __HAVE_ARCH_MEMCMP
++extern int memcmp(const void *, const void *, size_t);
++#endif
++
+ #endif
+--- a/arch/arm/include/asm/uaccess.h
++++ b/arch/arm/include/asm/uaccess.h
+@@ -516,6 +516,9 @@ do {									\
+ extern unsigned long __must_check
+ arm_copy_from_user(void *to, const void __user *from, unsigned long n);
+ 
++extern unsigned long __must_check
++__copy_from_user_std(void *to, const void __user *from, unsigned long n);
++
+ static inline unsigned long __must_check
+ raw_copy_from_user(void *to, const void __user *from, unsigned long n)
+ {
+--- a/arch/arm/lib/Makefile
++++ b/arch/arm/lib/Makefile
+@@ -7,8 +7,8 @@
+ 
+ lib-y		:= changebit.o csumipv6.o csumpartial.o               \
+ 		   csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
+-		   delay.o delay-loop.o findbit.o memchr.o memcpy.o   \
+-		   memmove.o memset.o setbit.o                        \
++		   delay.o delay-loop.o findbit.o memchr.o            \
++		   setbit.o                                           \
+ 		   strchr.o strrchr.o                                 \
+ 		   testchangebit.o testclearbit.o testsetbit.o        \
+ 		   ashldi3.o ashrdi3.o lshrdi3.o muldi3.o             \
+@@ -25,6 +25,16 @@ else
+   lib-y	+= backtrace.o
+ endif
+ 
++# Choose optimised implementations for Raspberry Pi
++ifeq ($(CONFIG_BCM2835_FAST_MEMCPY),y)
++  CFLAGS_uaccess_with_memcpy.o += -DCOPY_FROM_USER_THRESHOLD=1600
++  CFLAGS_uaccess_with_memcpy.o += -DCOPY_TO_USER_THRESHOLD=672
++  obj-$(CONFIG_MODULES) += exports_rpi.o
++  lib-y        += memcpy_rpi.o memmove_rpi.o memset_rpi.o memcmp_rpi.o
++else
++  lib-y        += memcpy.o memmove.o memset.o
++endif
++
+ # using lib_ here won't override already available weak symbols
+ obj-$(CONFIG_UACCESS_WITH_MEMCPY) += uaccess_with_memcpy.o
+ 
+--- /dev/null
++++ b/arch/arm/lib/arm-mem.h
+@@ -0,0 +1,159 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++.macro myfunc fname
++ .func fname
++ .global fname
++fname:
++.endm
++
++.macro preload_leading_step1  backwards, ptr, base
++/* If the destination is already 16-byte aligned, then we need to preload
++ * between 0 and prefetch_distance (inclusive) cache lines ahead so there
++ * are no gaps when the inner loop starts.
++ */
++ .if backwards
++        sub     ptr, base, #1
++        bic     ptr, ptr, #31
++ .else
++        bic     ptr, base, #31
++ .endif
++ .set OFFSET, 0
++ .rept prefetch_distance+1
++        pld     [ptr, #OFFSET]
++  .if backwards
++   .set OFFSET, OFFSET-32
++  .else
++   .set OFFSET, OFFSET+32
++  .endif
++ .endr
++.endm
++
++.macro preload_leading_step2  backwards, ptr, base, leading_bytes, tmp
++/* However, if the destination is not 16-byte aligned, we may need to
++ * preload one more cache line than that. The question we need to ask is:
++ * are the leading bytes more than the amount by which the source
++ * pointer will be rounded down for preloading, and if so, by how many
++ * cache lines?
++ */
++ .if backwards
++/* Here we compare against how many bytes we are into the
++ * cache line, counting down from the highest such address.
++ * Effectively, we want to calculate
++ *     leading_bytes = dst&15
++ *     cacheline_offset = 31-((src-leading_bytes-1)&31)
++ *     extra_needed = leading_bytes - cacheline_offset
++ * and test if extra_needed is <= 0, or rearranging:
++ *     leading_bytes + (src-leading_bytes-1)&31 <= 31
++ */
++        mov     tmp, base, lsl #32-5
++        sbc     tmp, tmp, leading_bytes, lsl #32-5
++        adds    tmp, tmp, leading_bytes, lsl #32-5
++        bcc     61f
++        pld     [ptr, #-32*(prefetch_distance+1)]
++ .else
++/* Effectively, we want to calculate
++ *     leading_bytes = (-dst)&15
++ *     cacheline_offset = (src+leading_bytes)&31
++ *     extra_needed = leading_bytes - cacheline_offset
++ * and test if extra_needed is <= 0.
++ */
++        mov     tmp, base, lsl #32-5
++        add     tmp, tmp, leading_bytes, lsl #32-5
++        rsbs    tmp, tmp, leading_bytes, lsl #32-5
++        bls     61f
++        pld     [ptr, #32*(prefetch_distance+1)]
++ .endif
++61:
++.endm
++
++.macro preload_trailing  backwards, base, remain, tmp
++        /* We need either 0, 1 or 2 extra preloads */
++ .if backwards
++        rsb     tmp, base, #0
++        mov     tmp, tmp, lsl #32-5
++ .else
++        mov     tmp, base, lsl #32-5
++ .endif
++        adds    tmp, tmp, remain, lsl #32-5
++        adceqs  tmp, tmp, #0
++        /* The instruction above has two effects: ensures Z is only
++         * set if C was clear (so Z indicates that both shifted quantities
++         * were 0), and clears C if Z was set (so C indicates that the sum
++         * of the shifted quantities was greater and not equal to 32) */
++        beq     82f
++ .if backwards
++        sub     tmp, base, #1
++        bic     tmp, tmp, #31
++ .else
++        bic     tmp, base, #31
++ .endif
++        bcc     81f
++ .if backwards
++        pld     [tmp, #-32*(prefetch_distance+1)]
++81:
++        pld     [tmp, #-32*prefetch_distance]
++ .else
++        pld     [tmp, #32*(prefetch_distance+2)]
++81:
++        pld     [tmp, #32*(prefetch_distance+1)]
++ .endif
++82:
++.endm
++
++.macro preload_all    backwards, narrow_case, shift, base, remain, tmp0, tmp1
++ .if backwards
++        sub     tmp0, base, #1
++        bic     tmp0, tmp0, #31
++        pld     [tmp0]
++        sub     tmp1, base, remain, lsl #shift
++ .else
++        bic     tmp0, base, #31
++        pld     [tmp0]
++        add     tmp1, base, remain, lsl #shift
++        sub     tmp1, tmp1, #1
++ .endif
++        bic     tmp1, tmp1, #31
++        cmp     tmp1, tmp0
++        beq     92f
++ .if narrow_case
++        /* In this case, all the data fits in either 1 or 2 cache lines */
++        pld     [tmp1]
++ .else
++91:
++  .if backwards
++        sub     tmp0, tmp0, #32
++  .else
++        add     tmp0, tmp0, #32
++  .endif
++        cmp     tmp0, tmp1
++        pld     [tmp0]
++        bne     91b
++ .endif
++92:
++.endm
+--- a/arch/arm/lib/copy_from_user.S
++++ b/arch/arm/lib/copy_from_user.S
+@@ -107,7 +107,8 @@
+ 
+ 	.text
+ 
+-ENTRY(arm_copy_from_user)
++ENTRY(__copy_from_user_std)
++WEAK(arm_copy_from_user)
+ #ifdef CONFIG_CPU_SPECTRE
+ 	get_thread_info r3
+ 	ldr	r3, [r3, #TI_ADDR_LIMIT]
+@@ -117,6 +118,7 @@ ENTRY(arm_copy_from_user)
+ #include "copy_template.S"
+ 
+ ENDPROC(arm_copy_from_user)
++ENDPROC(__copy_from_user_std)
+ 
+ 	.pushsection .text.fixup,"ax"
+ 	.align 0
+--- /dev/null
++++ b/arch/arm/lib/exports_rpi.c
+@@ -0,0 +1,37 @@
++/**
++ * Copyright (c) 2014, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++
++EXPORT_SYMBOL(memcmp);
+--- /dev/null
++++ b/arch/arm/lib/memcmp_rpi.S
+@@ -0,0 +1,285 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++#include <linux/linkage.h>
++#include "arm-mem.h"
++
++/* Prevent the stack from becoming executable */
++#if defined(__linux__) && defined(__ELF__)
++.section .note.GNU-stack,"",%progbits
++#endif
++
++    .text
++    .arch armv6
++    .object_arch armv4
++    .arm
++    .altmacro
++    .p2align 2
++
++.macro memcmp_process_head  unaligned
++ .if unaligned
++        ldr     DAT0, [S_1], #4
++        ldr     DAT1, [S_1], #4
++        ldr     DAT2, [S_1], #4
++        ldr     DAT3, [S_1], #4
++ .else
++        ldmia   S_1!, {DAT0, DAT1, DAT2, DAT3}
++ .endif
++        ldmia   S_2!, {DAT4, DAT5, DAT6, DAT7}
++.endm
++
++.macro memcmp_process_tail
++        cmp     DAT0, DAT4
++        cmpeq   DAT1, DAT5
++        cmpeq   DAT2, DAT6
++        cmpeq   DAT3, DAT7
++        bne     200f
++.endm
++
++.macro memcmp_leading_31bytes
++        movs    DAT0, OFF, lsl #31
++        ldrmib  DAT0, [S_1], #1
++        ldrcsh  DAT1, [S_1], #2
++        ldrmib  DAT4, [S_2], #1
++        ldrcsh  DAT5, [S_2], #2
++        movpl   DAT0, #0
++        movcc   DAT1, #0
++        movpl   DAT4, #0
++        movcc   DAT5, #0
++        submi   N, N, #1
++        subcs   N, N, #2
++        cmp     DAT0, DAT4
++        cmpeq   DAT1, DAT5
++        bne     200f
++        movs    DAT0, OFF, lsl #29
++        ldrmi   DAT0, [S_1], #4
++        ldrcs   DAT1, [S_1], #4
++        ldrcs   DAT2, [S_1], #4
++        ldrmi   DAT4, [S_2], #4
++        ldmcsia S_2!, {DAT5, DAT6}
++        movpl   DAT0, #0
++        movcc   DAT1, #0
++        movcc   DAT2, #0
++        movpl   DAT4, #0
++        movcc   DAT5, #0
++        movcc   DAT6, #0
++        submi   N, N, #4
++        subcs   N, N, #8
++        cmp     DAT0, DAT4
++        cmpeq   DAT1, DAT5
++        cmpeq   DAT2, DAT6
++        bne     200f
++        tst     OFF, #16
++        beq     105f
++        memcmp_process_head  1
++        sub     N, N, #16
++        memcmp_process_tail
++105:
++.endm
++
++.macro memcmp_trailing_15bytes  unaligned
++        movs    N, N, lsl #29
++ .if unaligned
++        ldrcs   DAT0, [S_1], #4
++        ldrcs   DAT1, [S_1], #4
++ .else
++        ldmcsia S_1!, {DAT0, DAT1}
++ .endif
++        ldrmi   DAT2, [S_1], #4
++        ldmcsia S_2!, {DAT4, DAT5}
++        ldrmi   DAT6, [S_2], #4
++        movcc   DAT0, #0
++        movcc   DAT1, #0
++        movpl   DAT2, #0
++        movcc   DAT4, #0
++        movcc   DAT5, #0
++        movpl   DAT6, #0
++        cmp     DAT0, DAT4
++        cmpeq   DAT1, DAT5
++        cmpeq   DAT2, DAT6
++        bne     200f
++        movs    N, N, lsl #2
++        ldrcsh  DAT0, [S_1], #2
++        ldrmib  DAT1, [S_1]
++        ldrcsh  DAT4, [S_2], #2
++        ldrmib  DAT5, [S_2]
++        movcc   DAT0, #0
++        movpl   DAT1, #0
++        movcc   DAT4, #0
++        movpl   DAT5, #0
++        cmp     DAT0, DAT4
++        cmpeq   DAT1, DAT5
++        bne     200f
++.endm
++
++.macro memcmp_long_inner_loop  unaligned
++110:
++        memcmp_process_head  unaligned
++        pld     [S_2, #prefetch_distance*32 + 16]
++        memcmp_process_tail
++        memcmp_process_head  unaligned
++        pld     [S_1, OFF]
++        memcmp_process_tail
++        subs    N, N, #32
++        bhs     110b
++        /* Just before the final (prefetch_distance+1) 32-byte blocks,
++         * deal with final preloads */
++        preload_trailing  0, S_1, N, DAT0
++        preload_trailing  0, S_2, N, DAT0
++        add     N, N, #(prefetch_distance+2)*32 - 16
++120:
++        memcmp_process_head  unaligned
++        memcmp_process_tail
++        subs    N, N, #16
++        bhs     120b
++        /* Trailing words and bytes */
++        tst     N, #15
++        beq     199f
++        memcmp_trailing_15bytes  unaligned
++199:    /* Reached end without detecting a difference */
++        mov     a1, #0
++        setend  le
++        pop     {DAT1-DAT6, pc}
++.endm
++
++.macro memcmp_short_inner_loop  unaligned
++        subs    N, N, #16     /* simplifies inner loop termination */
++        blo     122f
++120:
++        memcmp_process_head  unaligned
++        memcmp_process_tail
++        subs    N, N, #16
++        bhs     120b
++122:    /* Trailing words and bytes */
++        tst     N, #15
++        beq     199f
++        memcmp_trailing_15bytes  unaligned
++199:    /* Reached end without detecting a difference */
++        mov     a1, #0
++        setend  le
++        pop     {DAT1-DAT6, pc}
++.endm
++
++/*
++ * int memcmp(const void *s1, const void *s2, size_t n);
++ * On entry:
++ * a1 = pointer to buffer 1
++ * a2 = pointer to buffer 2
++ * a3 = number of bytes to compare (as unsigned chars)
++ * On exit:
++ * a1 = >0/=0/<0 if s1 >/=/< s2
++ */
++
++.set prefetch_distance, 2
++
++ENTRY(memcmp)
++        S_1     .req    a1
++        S_2     .req    a2
++        N       .req    a3
++        DAT0    .req    a4
++        DAT1    .req    v1
++        DAT2    .req    v2
++        DAT3    .req    v3
++        DAT4    .req    v4
++        DAT5    .req    v5
++        DAT6    .req    v6
++        DAT7    .req    ip
++        OFF     .req    lr
++
++        push    {DAT1-DAT6, lr}
++        setend  be /* lowest-addressed bytes are most significant */
++
++        /* To preload ahead as we go, we need at least (prefetch_distance+2) 32-byte blocks */
++        cmp     N, #(prefetch_distance+3)*32 - 1
++        blo     170f
++
++        /* Long case */
++        /* Adjust N so that the decrement instruction can also test for
++         * inner loop termination. We want it to stop when there are
++         * (prefetch_distance+1) complete blocks to go. */
++        sub     N, N, #(prefetch_distance+2)*32
++        preload_leading_step1  0, DAT0, S_1
++        preload_leading_step1  0, DAT1, S_2
++        tst     S_2, #31
++        beq     154f
++        rsb     OFF, S_2, #0 /* no need to AND with 15 here */
++        preload_leading_step2  0, DAT0, S_1, OFF, DAT2
++        preload_leading_step2  0, DAT1, S_2, OFF, DAT2
++        memcmp_leading_31bytes
++154:    /* Second source now cacheline (32-byte) aligned; we have at
++         * least one prefetch to go. */
++        /* Prefetch offset is best selected such that it lies in the
++         * first 8 of each 32 bytes - but it's just as easy to aim for
++         * the first one */
++        and     OFF, S_1, #31
++        rsb     OFF, OFF, #32*prefetch_distance
++        tst     S_1, #3
++        bne     140f
++        memcmp_long_inner_loop  0
++140:    memcmp_long_inner_loop  1
++
++170:    /* Short case */
++        teq     N, #0
++        beq     199f
++        preload_all 0, 0, 0, S_1, N, DAT0, DAT1
++        preload_all 0, 0, 0, S_2, N, DAT0, DAT1
++        tst     S_2, #3
++        beq     174f
++172:    subs    N, N, #1
++        blo     199f
++        ldrb    DAT0, [S_1], #1
++        ldrb    DAT4, [S_2], #1
++        cmp     DAT0, DAT4
++        bne     200f
++        tst     S_2, #3
++        bne     172b
++174:    /* Second source now 4-byte aligned; we have 0 or more bytes to go */
++        tst     S_1, #3
++        bne     140f
++        memcmp_short_inner_loop  0
++140:    memcmp_short_inner_loop  1
++
++200:    /* Difference found: determine sign. */
++        movhi   a1, #1
++        movlo   a1, #-1
++        setend  le
++        pop     {DAT1-DAT6, pc}
++
++        .unreq  S_1
++        .unreq  S_2
++        .unreq  N
++        .unreq  DAT0
++        .unreq  DAT1
++        .unreq  DAT2
++        .unreq  DAT3
++        .unreq  DAT4
++        .unreq  DAT5
++        .unreq  DAT6
++        .unreq  DAT7
++        .unreq  OFF
++ENDPROC(memcmp)
+--- /dev/null
++++ b/arch/arm/lib/memcpy_rpi.S
+@@ -0,0 +1,61 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++#include <linux/linkage.h>
++#include "arm-mem.h"
++#include "memcpymove.h"
++
++/* Prevent the stack from becoming executable */
++#if defined(__linux__) && defined(__ELF__)
++.section .note.GNU-stack,"",%progbits
++#endif
++
++    .text
++    .arch armv6
++    .object_arch armv4
++    .arm
++    .altmacro
++    .p2align 2
++
++/*
++ * void *memcpy(void * restrict s1, const void * restrict s2, size_t n);
++ * On entry:
++ * a1 = pointer to destination
++ * a2 = pointer to source
++ * a3 = number of bytes to copy
++ * On exit:
++ * a1 preserved
++ */
++
++.set prefetch_distance, 3
++
++ENTRY(mmiocpy)
++ENTRY(memcpy)
++        memcpy  0
++ENDPROC(memcpy)
++ENDPROC(mmiocpy)
+--- /dev/null
++++ b/arch/arm/lib/memcpymove.h
+@@ -0,0 +1,506 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++.macro unaligned_words  backwards, align, use_pld, words, r0, r1, r2, r3, r4, r5, r6, r7, r8
++ .if words == 1
++  .if backwards
++        mov     r1, r0, lsl #32-align*8
++        ldr     r0, [S, #-4]!
++        orr     r1, r1, r0, lsr #align*8
++        str     r1, [D, #-4]!
++  .else
++        mov     r0, r1, lsr #align*8
++        ldr     r1, [S, #4]!
++        orr     r0, r0, r1, lsl #32-align*8
++        str     r0, [D], #4
++  .endif
++ .elseif words == 2
++  .if backwards
++        ldr     r1, [S, #-4]!
++        mov     r2, r0, lsl #32-align*8
++        ldr     r0, [S, #-4]!
++        orr     r2, r2, r1, lsr #align*8
++        mov     r1, r1, lsl #32-align*8
++        orr     r1, r1, r0, lsr #align*8
++        stmdb   D!, {r1, r2}
++  .else
++        ldr     r1, [S, #4]!
++        mov     r0, r2, lsr #align*8
++        ldr     r2, [S, #4]!
++        orr     r0, r0, r1, lsl #32-align*8
++        mov     r1, r1, lsr #align*8
++        orr     r1, r1, r2, lsl #32-align*8
++        stmia   D!, {r0, r1}
++  .endif
++ .elseif words == 4
++  .if backwards
++        ldmdb   S!, {r2, r3}
++        mov     r4, r0, lsl #32-align*8
++        ldmdb   S!, {r0, r1}
++        orr     r4, r4, r3, lsr #align*8
++        mov     r3, r3, lsl #32-align*8
++        orr     r3, r3, r2, lsr #align*8
++        mov     r2, r2, lsl #32-align*8
++        orr     r2, r2, r1, lsr #align*8
++        mov     r1, r1, lsl #32-align*8
++        orr     r1, r1, r0, lsr #align*8
++        stmdb   D!, {r1, r2, r3, r4}
++  .else
++        ldmib   S!, {r1, r2}
++        mov     r0, r4, lsr #align*8
++        ldmib   S!, {r3, r4}
++        orr     r0, r0, r1, lsl #32-align*8
++        mov     r1, r1, lsr #align*8
++        orr     r1, r1, r2, lsl #32-align*8
++        mov     r2, r2, lsr #align*8
++        orr     r2, r2, r3, lsl #32-align*8
++        mov     r3, r3, lsr #align*8
++        orr     r3, r3, r4, lsl #32-align*8
++        stmia   D!, {r0, r1, r2, r3}
++  .endif
++ .elseif words == 8
++  .if backwards
++        ldmdb   S!, {r4, r5, r6, r7}
++        mov     r8, r0, lsl #32-align*8
++        ldmdb   S!, {r0, r1, r2, r3}
++   .if use_pld
++        pld     [S, OFF]
++   .endif
++        orr     r8, r8, r7, lsr #align*8
++        mov     r7, r7, lsl #32-align*8
++        orr     r7, r7, r6, lsr #align*8
++        mov     r6, r6, lsl #32-align*8
++        orr     r6, r6, r5, lsr #align*8
++        mov     r5, r5, lsl #32-align*8
++        orr     r5, r5, r4, lsr #align*8
++        mov     r4, r4, lsl #32-align*8
++        orr     r4, r4, r3, lsr #align*8
++        mov     r3, r3, lsl #32-align*8
++        orr     r3, r3, r2, lsr #align*8
++        mov     r2, r2, lsl #32-align*8
++        orr     r2, r2, r1, lsr #align*8
++        mov     r1, r1, lsl #32-align*8
++        orr     r1, r1, r0, lsr #align*8
++        stmdb   D!, {r5, r6, r7, r8}
++        stmdb   D!, {r1, r2, r3, r4}
++  .else
++        ldmib   S!, {r1, r2, r3, r4}
++        mov     r0, r8, lsr #align*8
++        ldmib   S!, {r5, r6, r7, r8}
++   .if use_pld
++        pld     [S, OFF]
++   .endif
++        orr     r0, r0, r1, lsl #32-align*8
++        mov     r1, r1, lsr #align*8
++        orr     r1, r1, r2, lsl #32-align*8
++        mov     r2, r2, lsr #align*8
++        orr     r2, r2, r3, lsl #32-align*8
++        mov     r3, r3, lsr #align*8
++        orr     r3, r3, r4, lsl #32-align*8
++        mov     r4, r4, lsr #align*8
++        orr     r4, r4, r5, lsl #32-align*8
++        mov     r5, r5, lsr #align*8
++        orr     r5, r5, r6, lsl #32-align*8
++        mov     r6, r6, lsr #align*8
++        orr     r6, r6, r7, lsl #32-align*8
++        mov     r7, r7, lsr #align*8
++        orr     r7, r7, r8, lsl #32-align*8
++        stmia   D!, {r0, r1, r2, r3}
++        stmia   D!, {r4, r5, r6, r7}
++  .endif
++ .endif
++.endm
++
++.macro memcpy_leading_15bytes  backwards, align
++        movs    DAT1, DAT2, lsl #31
++        sub     N, N, DAT2
++ .if backwards
++        ldrmib  DAT0, [S, #-1]!
++        ldrcsh  DAT1, [S, #-2]!
++        strmib  DAT0, [D, #-1]!
++        strcsh  DAT1, [D, #-2]!
++ .else
++        ldrmib  DAT0, [S], #1
++        ldrcsh  DAT1, [S], #2
++        strmib  DAT0, [D], #1
++        strcsh  DAT1, [D], #2
++ .endif
++        movs    DAT1, DAT2, lsl #29
++ .if backwards
++        ldrmi   DAT0, [S, #-4]!
++  .if align == 0
++        ldmcsdb S!, {DAT1, DAT2}
++  .else
++        ldrcs   DAT2, [S, #-4]!
++        ldrcs   DAT1, [S, #-4]!
++  .endif
++        strmi   DAT0, [D, #-4]!
++        stmcsdb D!, {DAT1, DAT2}
++ .else
++        ldrmi   DAT0, [S], #4
++  .if align == 0
++        ldmcsia S!, {DAT1, DAT2}
++  .else
++        ldrcs   DAT1, [S], #4
++        ldrcs   DAT2, [S], #4
++  .endif
++        strmi   DAT0, [D], #4
++        stmcsia D!, {DAT1, DAT2}
++ .endif
++.endm
++
++.macro memcpy_trailing_15bytes  backwards, align
++        movs    N, N, lsl #29
++ .if backwards
++  .if align == 0
++        ldmcsdb S!, {DAT0, DAT1}
++  .else
++        ldrcs   DAT1, [S, #-4]!
++        ldrcs   DAT0, [S, #-4]!
++  .endif
++        ldrmi   DAT2, [S, #-4]!
++        stmcsdb D!, {DAT0, DAT1}
++        strmi   DAT2, [D, #-4]!
++ .else
++  .if align == 0
++        ldmcsia S!, {DAT0, DAT1}
++  .else
++        ldrcs   DAT0, [S], #4
++        ldrcs   DAT1, [S], #4
++  .endif
++        ldrmi   DAT2, [S], #4
++        stmcsia D!, {DAT0, DAT1}
++        strmi   DAT2, [D], #4
++ .endif
++        movs    N, N, lsl #2
++ .if backwards
++        ldrcsh  DAT0, [S, #-2]!
++        ldrmib  DAT1, [S, #-1]
++        strcsh  DAT0, [D, #-2]!
++        strmib  DAT1, [D, #-1]
++ .else
++        ldrcsh  DAT0, [S], #2
++        ldrmib  DAT1, [S]
++        strcsh  DAT0, [D], #2
++        strmib  DAT1, [D]
++ .endif
++.endm
++
++.macro memcpy_long_inner_loop  backwards, align
++ .if align != 0
++  .if backwards
++        ldr     DAT0, [S, #-align]!
++  .else
++        ldr     LAST, [S, #-align]!
++  .endif
++ .endif
++110:
++ .if align == 0
++  .if backwards
++        ldmdb   S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST}
++        pld     [S, OFF]
++        stmdb   D!, {DAT4, DAT5, DAT6, LAST}
++        stmdb   D!, {DAT0, DAT1, DAT2, DAT3}
++  .else
++        ldmia   S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST}
++        pld     [S, OFF]
++        stmia   D!, {DAT0, DAT1, DAT2, DAT3}
++        stmia   D!, {DAT4, DAT5, DAT6, LAST}
++  .endif
++ .else
++        unaligned_words  backwards, align, 1, 8, DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, DAT7, LAST
++ .endif
++        subs    N, N, #32
++        bhs     110b
++        /* Just before the final (prefetch_distance+1) 32-byte blocks, deal with final preloads */
++        preload_trailing  backwards, S, N, OFF
++        add     N, N, #(prefetch_distance+2)*32 - 32
++120:
++ .if align == 0
++  .if backwards
++        ldmdb   S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST}
++        stmdb   D!, {DAT4, DAT5, DAT6, LAST}
++        stmdb   D!, {DAT0, DAT1, DAT2, DAT3}
++  .else
++        ldmia   S!, {DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, LAST}
++        stmia   D!, {DAT0, DAT1, DAT2, DAT3}
++        stmia   D!, {DAT4, DAT5, DAT6, LAST}
++  .endif
++ .else
++        unaligned_words  backwards, align, 0, 8, DAT0, DAT1, DAT2, DAT3, DAT4, DAT5, DAT6, DAT7, LAST
++ .endif
++        subs    N, N, #32
++        bhs     120b
++        tst     N, #16
++ .if align == 0
++  .if backwards
++        ldmnedb S!, {DAT0, DAT1, DAT2, LAST}
++        stmnedb D!, {DAT0, DAT1, DAT2, LAST}
++  .else
++        ldmneia S!, {DAT0, DAT1, DAT2, LAST}
++        stmneia D!, {DAT0, DAT1, DAT2, LAST}
++  .endif
++ .else
++        beq     130f
++        unaligned_words  backwards, align, 0, 4, DAT0, DAT1, DAT2, DAT3, LAST
++130:
++ .endif
++        /* Trailing words and bytes */
++        tst      N, #15
++        beq      199f
++ .if align != 0
++        add     S, S, #align
++ .endif
++        memcpy_trailing_15bytes  backwards, align
++199:
++        pop     {DAT3, DAT4, DAT5, DAT6, DAT7}
++        pop     {D, DAT1, DAT2, pc}
++.endm
++
++.macro memcpy_medium_inner_loop  backwards, align
++120:
++ .if backwards
++  .if align == 0
++        ldmdb   S!, {DAT0, DAT1, DAT2, LAST}
++  .else
++        ldr     LAST, [S, #-4]!
++        ldr     DAT2, [S, #-4]!
++        ldr     DAT1, [S, #-4]!
++        ldr     DAT0, [S, #-4]!
++  .endif
++        stmdb   D!, {DAT0, DAT1, DAT2, LAST}
++ .else
++  .if align == 0
++        ldmia   S!, {DAT0, DAT1, DAT2, LAST}
++  .else
++        ldr     DAT0, [S], #4
++        ldr     DAT1, [S], #4
++        ldr     DAT2, [S], #4
++        ldr     LAST, [S], #4
++  .endif
++        stmia   D!, {DAT0, DAT1, DAT2, LAST}
++ .endif
++        subs     N, N, #16
++        bhs      120b
++        /* Trailing words and bytes */
++        tst      N, #15
++        beq      199f
++        memcpy_trailing_15bytes  backwards, align
++199:
++        pop     {D, DAT1, DAT2, pc}
++.endm
++
++.macro memcpy_short_inner_loop  backwards, align
++        tst     N, #16
++ .if backwards
++  .if align == 0
++        ldmnedb S!, {DAT0, DAT1, DAT2, LAST}
++  .else
++        ldrne   LAST, [S, #-4]!
++        ldrne   DAT2, [S, #-4]!
++        ldrne   DAT1, [S, #-4]!
++        ldrne   DAT0, [S, #-4]!
++  .endif
++        stmnedb D!, {DAT0, DAT1, DAT2, LAST}
++ .else
++  .if align == 0
++        ldmneia S!, {DAT0, DAT1, DAT2, LAST}
++  .else
++        ldrne   DAT0, [S], #4
++        ldrne   DAT1, [S], #4
++        ldrne   DAT2, [S], #4
++        ldrne   LAST, [S], #4
++  .endif
++        stmneia D!, {DAT0, DAT1, DAT2, LAST}
++ .endif
++        memcpy_trailing_15bytes  backwards, align
++199:
++        pop     {D, DAT1, DAT2, pc}
++.endm
++
++.macro memcpy backwards
++        D       .req    a1
++        S       .req    a2
++        N       .req    a3
++        DAT0    .req    a4
++        DAT1    .req    v1
++        DAT2    .req    v2
++        DAT3    .req    v3
++        DAT4    .req    v4
++        DAT5    .req    v5
++        DAT6    .req    v6
++        DAT7    .req    sl
++        LAST    .req    ip
++        OFF     .req    lr
++
++        .cfi_startproc
++
++        push    {D, DAT1, DAT2, lr}
++
++        .cfi_def_cfa_offset 16
++        .cfi_rel_offset D, 0
++        .cfi_undefined  S
++        .cfi_undefined  N
++        .cfi_undefined  DAT0
++        .cfi_rel_offset DAT1, 4
++        .cfi_rel_offset DAT2, 8
++        .cfi_undefined  LAST
++        .cfi_rel_offset lr, 12
++
++ .if backwards
++        add     D, D, N
++        add     S, S, N
++ .endif
++
++        /* See if we're guaranteed to have at least one 16-byte aligned 16-byte write */
++        cmp     N, #31
++        blo     170f
++        /* To preload ahead as we go, we need at least (prefetch_distance+2) 32-byte blocks */
++        cmp     N, #(prefetch_distance+3)*32 - 1
++        blo     160f
++
++        /* Long case */
++        push    {DAT3, DAT4, DAT5, DAT6, DAT7}
++
++        .cfi_def_cfa_offset 36
++        .cfi_rel_offset D, 20
++        .cfi_rel_offset DAT1, 24
++        .cfi_rel_offset DAT2, 28
++        .cfi_rel_offset DAT3, 0
++        .cfi_rel_offset DAT4, 4
++        .cfi_rel_offset DAT5, 8
++        .cfi_rel_offset DAT6, 12
++        .cfi_rel_offset DAT7, 16
++        .cfi_rel_offset lr, 32
++
++        /* Adjust N so that the decrement instruction can also test for
++         * inner loop termination. We want it to stop when there are
++         * (prefetch_distance+1) complete blocks to go. */
++        sub     N, N, #(prefetch_distance+2)*32
++        preload_leading_step1  backwards, DAT0, S
++ .if backwards
++        /* Bug in GAS: it accepts, but mis-assembles the instruction
++         * ands    DAT2, D, #60, 2
++         * which sets DAT2 to the number of leading bytes until destination is aligned and also clears C (sets borrow)
++         */
++        .word   0xE210513C
++        beq     154f
++ .else
++        ands    DAT2, D, #15
++        beq     154f
++        rsb     DAT2, DAT2, #16 /* number of leading bytes until destination aligned */
++ .endif
++        preload_leading_step2  backwards, DAT0, S, DAT2, OFF
++        memcpy_leading_15bytes backwards, 1
++154:    /* Destination now 16-byte aligned; we have at least one prefetch as well as at least one 16-byte output block */
++        /* Prefetch offset is best selected such that it lies in the first 8 of each 32 bytes - but it's just as easy to aim for the first one */
++ .if backwards
++        rsb     OFF, S, #3
++        and     OFF, OFF, #28
++        sub     OFF, OFF, #32*(prefetch_distance+1)
++ .else
++        and     OFF, S, #28
++        rsb     OFF, OFF, #32*prefetch_distance
++ .endif
++        movs    DAT0, S, lsl #31
++        bhi     157f
++        bcs     156f
++        bmi     155f
++        memcpy_long_inner_loop  backwards, 0
++155:    memcpy_long_inner_loop  backwards, 1
++156:    memcpy_long_inner_loop  backwards, 2
++157:    memcpy_long_inner_loop  backwards, 3
++
++        .cfi_def_cfa_offset 16
++        .cfi_rel_offset D, 0
++        .cfi_rel_offset DAT1, 4
++        .cfi_rel_offset DAT2, 8
++        .cfi_same_value DAT3
++        .cfi_same_value DAT4
++        .cfi_same_value DAT5
++        .cfi_same_value DAT6
++        .cfi_same_value DAT7
++        .cfi_rel_offset lr, 12
++
++160:    /* Medium case */
++        preload_all  backwards, 0, 0, S, N, DAT2, OFF
++        sub     N, N, #16     /* simplifies inner loop termination */
++ .if backwards
++        ands    DAT2, D, #15
++        beq     164f
++ .else
++        ands    DAT2, D, #15
++        beq     164f
++        rsb     DAT2, DAT2, #16
++ .endif
++        memcpy_leading_15bytes backwards, align
++164:    /* Destination now 16-byte aligned; we have at least one 16-byte output block */
++        tst     S, #3
++        bne     140f
++        memcpy_medium_inner_loop  backwards, 0
++140:    memcpy_medium_inner_loop  backwards, 1
++
++170:    /* Short case, less than 31 bytes, so no guarantee of at least one 16-byte block */
++        teq     N, #0
++        beq     199f
++        preload_all  backwards, 1, 0, S, N, DAT2, LAST
++        tst     D, #3
++        beq     174f
++172:    subs    N, N, #1
++        blo     199f
++ .if backwards
++        ldrb    DAT0, [S, #-1]!
++        strb    DAT0, [D, #-1]!
++ .else
++        ldrb    DAT0, [S], #1
++        strb    DAT0, [D], #1
++ .endif
++        tst     D, #3
++        bne     172b
++174:    /* Destination now 4-byte aligned; we have 0 or more output bytes to go */
++        tst     S, #3
++        bne     140f
++        memcpy_short_inner_loop  backwards, 0
++140:    memcpy_short_inner_loop  backwards, 1
++
++        .cfi_endproc
++
++        .unreq  D
++        .unreq  S
++        .unreq  N
++        .unreq  DAT0
++        .unreq  DAT1
++        .unreq  DAT2
++        .unreq  DAT3
++        .unreq  DAT4
++        .unreq  DAT5
++        .unreq  DAT6
++        .unreq  DAT7
++        .unreq  LAST
++        .unreq  OFF
++.endm
+--- /dev/null
++++ b/arch/arm/lib/memmove_rpi.S
+@@ -0,0 +1,61 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++#include <linux/linkage.h>
++#include "arm-mem.h"
++#include "memcpymove.h"
++
++/* Prevent the stack from becoming executable */
++#if defined(__linux__) && defined(__ELF__)
++.section .note.GNU-stack,"",%progbits
++#endif
++
++    .text
++    .arch armv6
++    .object_arch armv4
++    .arm
++    .altmacro
++    .p2align 2
++
++/*
++ * void *memmove(void *s1, const void *s2, size_t n);
++ * On entry:
++ * a1 = pointer to destination
++ * a2 = pointer to source
++ * a3 = number of bytes to copy
++ * On exit:
++ * a1 preserved
++ */
++
++.set prefetch_distance, 3
++
++ENTRY(memmove)
++        cmp     a2, a1
++        bpl     memcpy  /* pl works even over -1 - 0 and 0x7fffffff - 0x80000000 boundaries */
++        memcpy  1
++ENDPROC(memmove)
+--- /dev/null
++++ b/arch/arm/lib/memset_rpi.S
+@@ -0,0 +1,128 @@
++/*
++Copyright (c) 2013, Raspberry Pi Foundation
++Copyright (c) 2013, RISC OS Open Ltd
++All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++    * Redistributions of source code must retain the above copyright
++      notice, this list of conditions and the following disclaimer.
++    * Redistributions in binary form must reproduce the above copyright
++      notice, this list of conditions and the following disclaimer in the
++      documentation and/or other materials provided with the distribution.
++    * Neither the name of the copyright holder nor the
++      names of its contributors may be used to endorse or promote products
++      derived from this software without specific prior written permission.
++
++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
++ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
++WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
++DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
++DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
++(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
++LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++*/
++
++#include <linux/linkage.h>
++#include "arm-mem.h"
++
++/* Prevent the stack from becoming executable */
++#if defined(__linux__) && defined(__ELF__)
++.section .note.GNU-stack,"",%progbits
++#endif
++
++    .text
++    .arch armv6
++    .object_arch armv4
++    .arm
++    .altmacro
++    .p2align 2
++
++/*
++ *  void *memset(void *s, int c, size_t n);
++ *  On entry:
++ *  a1 = pointer to buffer to fill
++ *  a2 = byte pattern to fill with (caller-narrowed)
++ *  a3 = number of bytes to fill
++ *  On exit:
++ *  a1 preserved
++ */
++ENTRY(mmioset)
++ENTRY(memset)
++ENTRY(__memset32)
++ENTRY(__memset64)
++
++        S       .req    a1
++        DAT0    .req    a2
++        N       .req    a3
++        DAT1    .req    a4
++        DAT2    .req    ip
++        DAT3    .req    lr
++
++        orr     DAT0, DAT0, DAT0, lsl #8
++        push    {S, lr}
++        orr     DAT0, DAT0, DAT0, lsl #16
++        mov     DAT1, DAT0
++
++        /* See if we're guaranteed to have at least one 16-byte aligned 16-byte write */
++        cmp     N, #31
++        blo     170f
++
++161:    sub     N, N, #16     /* simplifies inner loop termination */
++        /* Leading words and bytes */
++        tst     S, #15
++        beq     164f
++        rsb     DAT3, S, #0   /* bits 0-3 = number of leading bytes until aligned */
++        movs    DAT2, DAT3, lsl #31
++        submi   N, N, #1
++        strmib  DAT0, [S], #1
++        subcs   N, N, #2
++        strcsh  DAT0, [S], #2
++        movs    DAT2, DAT3, lsl #29
++        submi   N, N, #4
++        strmi   DAT0, [S], #4
++        subcs   N, N, #8
++        stmcsia S!, {DAT0, DAT1}
++164:    /* Delayed set up of DAT2 and DAT3 so we could use them as scratch registers above */
++        mov     DAT2, DAT0
++        mov     DAT3, DAT0
++        /* Now the inner loop of 16-byte stores */
++165:    stmia   S!, {DAT0, DAT1, DAT2, DAT3}
++        subs    N, N, #16
++        bhs     165b
++166:    /* Trailing words and bytes */
++        movs    N, N, lsl #29
++        stmcsia S!, {DAT0, DAT1}
++        strmi   DAT0, [S], #4
++        movs    N, N, lsl #2
++        strcsh  DAT0, [S], #2
++        strmib  DAT0, [S]
++199:    pop     {S, pc}
++
++170:    /* Short case */
++        mov     DAT2, DAT0
++        mov     DAT3, DAT0
++        tst     S, #3
++        beq     174f
++172:    subs    N, N, #1
++        blo     199b
++        strb    DAT0, [S], #1
++        tst     S, #3
++        bne     172b
++174:    tst     N, #16
++        stmneia S!, {DAT0, DAT1, DAT2, DAT3}
++        b       166b
++
++        .unreq  S
++        .unreq  DAT0
++        .unreq  N
++        .unreq  DAT1
++        .unreq  DAT2
++        .unreq  DAT3
++ENDPROC(__memset64)
++ENDPROC(__memset32)
++ENDPROC(memset)
++ENDPROC(mmioset)
+--- a/arch/arm/lib/uaccess_with_memcpy.c
++++ b/arch/arm/lib/uaccess_with_memcpy.c
+@@ -19,6 +19,14 @@
+ #include <asm/current.h>
+ #include <asm/page.h>
+ 
++#ifndef COPY_FROM_USER_THRESHOLD
++#define COPY_FROM_USER_THRESHOLD 64
++#endif
++
++#ifndef COPY_TO_USER_THRESHOLD
++#define COPY_TO_USER_THRESHOLD 64
++#endif
++
+ static int
+ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
+ {
+@@ -43,7 +51,7 @@ pin_page_for_write(const void __user *_a
+ 		return 0;
+ 
+ 	pmd = pmd_offset(pud, addr);
+-	if (unlikely(pmd_none(*pmd)))
++	if (unlikely(pmd_none(*pmd) || pmd_bad(*pmd)))
+ 		return 0;
+ 
+ 	/*
+@@ -86,7 +94,46 @@ pin_page_for_write(const void __user *_a
+ 	return 1;
+ }
+ 
+-static unsigned long noinline
++static int
++pin_page_for_read(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
++{
++	unsigned long addr = (unsigned long)_addr;
++	pgd_t *pgd;
++	p4d_t *p4d;
++	pmd_t *pmd;
++	pte_t *pte;
++	pud_t *pud;
++	spinlock_t *ptl;
++
++	pgd = pgd_offset(current->mm, addr);
++	if (unlikely(pgd_none(*pgd) || pgd_bad(*pgd)))
++		return 0;
++
++	p4d = p4d_offset(pgd, addr);
++	if (unlikely(p4d_none(*p4d) || p4d_bad(*p4d)))
++		return 0;
++
++	pud = pud_offset(p4d, addr);
++	if (unlikely(pud_none(*pud) || pud_bad(*pud)))
++		return 0;
++
++	pmd = pmd_offset(pud, addr);
++	if (unlikely(pmd_none(*pmd) || pmd_bad(*pmd)))
++		return 0;
++
++	pte = pte_offset_map_lock(current->mm, pmd, addr, &ptl);
++	if (unlikely(!pte_present(*pte) || !pte_young(*pte))) {
++		pte_unmap_unlock(pte, ptl);
++		return 0;
++	}
++
++	*ptep = pte;
++	*ptlp = ptl;
++
++	return 1;
++}
++
++unsigned long noinline
+ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n)
+ {
+ 	unsigned long ua_flags;
+@@ -139,6 +186,57 @@ out:
+ 	return n;
+ }
+ 
++unsigned long noinline
++__copy_from_user_memcpy(void *to, const void __user *from, unsigned long n)
++{
++	unsigned long ua_flags;
++	int atomic;
++
++	if (unlikely(uaccess_kernel())) {
++		memcpy(to, (const void *)from, n);
++		return 0;
++	}
++
++	/* the mmap semaphore is taken only if not in an atomic context */
++	atomic = in_atomic();
++
++	if (!atomic)
++		mmap_read_lock(current->mm);
++	while (n) {
++		pte_t *pte;
++		spinlock_t *ptl;
++		int tocopy;
++
++		while (!pin_page_for_read(from, &pte, &ptl)) {
++			char temp;
++			if (!atomic)
++				mmap_read_unlock(current->mm);
++			if (__get_user(temp, (char __user *)from))
++				goto out;
++			if (!atomic)
++				mmap_read_lock(current->mm);
++		}
++
++		tocopy = (~(unsigned long)from & ~PAGE_MASK) + 1;
++		if (tocopy > n)
++			tocopy = n;
++
++		ua_flags = uaccess_save_and_enable();
++		memcpy(to, (const void *)from, tocopy);
++		uaccess_restore(ua_flags);
++		to += tocopy;
++		from += tocopy;
++		n -= tocopy;
++
++		pte_unmap_unlock(pte, ptl);
++	}
++	if (!atomic)
++		mmap_read_unlock(current->mm);
++
++out:
++	return n;
++}
++
+ unsigned long
+ arm_copy_to_user(void __user *to, const void *from, unsigned long n)
+ {
+@@ -149,7 +247,7 @@ arm_copy_to_user(void __user *to, const
+ 	 * With frame pointer disabled, tail call optimization kicks in
+ 	 * as well making this test almost invisible.
+ 	 */
+-	if (n < 64) {
++	if (n < COPY_TO_USER_THRESHOLD) {
+ 		unsigned long ua_flags = uaccess_save_and_enable();
+ 		n = __copy_to_user_std(to, from, n);
+ 		uaccess_restore(ua_flags);
+@@ -159,6 +257,32 @@ arm_copy_to_user(void __user *to, const
+ 	}
+ 	return n;
+ }
++
++unsigned long __must_check
++arm_copy_from_user(void *to, const void __user *from, unsigned long n)
++{
++#ifdef CONFIG_BCM2835_FAST_MEMCPY
++	/*
++	 * This test is stubbed out of the main function above to keep
++	 * the overhead for small copies low by avoiding a large
++	 * register dump on the stack just to reload them right away.
++	 * With frame pointer disabled, tail call optimization kicks in
++	 * as well making this test almost invisible.
++	 */
++	if (n < COPY_TO_USER_THRESHOLD) {
++		unsigned long ua_flags = uaccess_save_and_enable();
++		n = __copy_from_user_std(to, from, n);
++		uaccess_restore(ua_flags);
++	} else {
++		n = __copy_from_user_memcpy(to, from, n);
++	}
++#else
++	unsigned long ua_flags = uaccess_save_and_enable();
++	n = __copy_from_user_std(to, from, n);
++	uaccess_restore(ua_flags);
++#endif
++	return n;
++}
+ 	
+ static unsigned long noinline
+ __clear_user_memset(void __user *addr, unsigned long n)
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -184,6 +184,13 @@ config ARCH_BCM_53573
+ 	  The base chip is BCM53573 and there are some packaging modifications
+ 	  like BCM47189 and BCM47452.
+ 
++config BCM2835_FAST_MEMCPY
++	bool "Enable optimized __copy_to_user and __copy_from_user"
++	depends on ARCH_BCM2835 && ARCH_MULTI_V6
++	default y
++	help
++	  Optimized versions of __copy_to_user and __copy_from_user for Pi1.
++
+ config ARCH_BCM_63XX
+ 	bool "Broadcom BCM63xx DSL SoC"
+ 	depends on ARCH_MULTI_V7
diff --git a/target/linux/bcm27xx/patches-5.10/950-0058-gpio-poweroff-Allow-it-to-work-on-Raspberry-Pi.patch b/target/linux/bcm27xx/patches-5.10/950-0058-gpio-poweroff-Allow-it-to-work-on-Raspberry-Pi.patch
new file mode 100644
index 0000000000..5d0873bd29
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0058-gpio-poweroff-Allow-it-to-work-on-Raspberry-Pi.patch
@@ -0,0 +1,35 @@
+From 95a7bcf89e17aa8ec8cabc06d47479e1ecb76976 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 25 Jun 2015 12:16:11 +0100
+Subject: [PATCH] gpio-poweroff: Allow it to work on Raspberry Pi
+
+The Raspberry Pi firmware manages the power-down and reboot
+process. To do this it installs a pm_power_off handler, causing
+the gpio-poweroff module to abort the probe function.
+
+This patch introduces a "force" DT property that overrides that
+behaviour, and also adds a DT overlay to enable and control it.
+
+Note that running in an active-low configuration (DT parameter
+"active_low") requires a custom dt-blob.bin and probably won't
+allow a reboot without switching off, so an external inversion
+of the trigger signal may be preferable.
+---
+ drivers/power/reset/gpio-poweroff.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -50,9 +50,11 @@ static int gpio_poweroff_probe(struct pl
+ {
+ 	bool input = false;
+ 	enum gpiod_flags flags;
++	bool force = false;
+ 
+ 	/* If a pm_power_off function has already been added, leave it alone */
+-	if (pm_power_off != NULL) {
++	force = of_property_read_bool(pdev->dev.of_node, "force");
++	if (!force && (pm_power_off != NULL)) {
+ 		dev_err(&pdev->dev,
+ 			"%s: pm_power_off function already registered\n",
+ 		       __func__);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0059-mfd-Add-Raspberry-Pi-Sense-HAT-core-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0059-mfd-Add-Raspberry-Pi-Sense-HAT-core-driver.patch
new file mode 100644
index 0000000000..bb4c686489
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0059-mfd-Add-Raspberry-Pi-Sense-HAT-core-driver.patch
@@ -0,0 +1,852 @@
+From cf000173e9ee4a80ac245e5feb042c18c5643d6c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <pelwell@users.noreply.github.com>
+Date: Tue, 14 Jul 2015 14:32:47 +0100
+Subject: [PATCH] mfd: Add Raspberry Pi Sense HAT core driver
+
+mfd: Add rpi_sense_core of compatible string
+---
+ drivers/input/joystick/Kconfig           |   8 +
+ drivers/input/joystick/Makefile          |   2 +-
+ drivers/input/joystick/rpisense-js.c     | 153 ++++++++++++
+ drivers/mfd/Kconfig                      |   8 +
+ drivers/mfd/Makefile                     |   1 +
+ drivers/mfd/rpisense-core.c              | 165 +++++++++++++
+ drivers/video/fbdev/Kconfig              |  13 +
+ drivers/video/fbdev/Makefile             |   1 +
+ drivers/video/fbdev/rpisense-fb.c        | 293 +++++++++++++++++++++++
+ include/linux/mfd/rpisense/core.h        |  47 ++++
+ include/linux/mfd/rpisense/framebuffer.h |  32 +++
+ include/linux/mfd/rpisense/joystick.h    |  35 +++
+ 12 files changed, 757 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/input/joystick/rpisense-js.c
+ create mode 100644 drivers/mfd/rpisense-core.c
+ create mode 100644 drivers/video/fbdev/rpisense-fb.c
+ create mode 100644 include/linux/mfd/rpisense/core.h
+ create mode 100644 include/linux/mfd/rpisense/framebuffer.h
+ create mode 100644 include/linux/mfd/rpisense/joystick.h
+
+--- a/drivers/input/joystick/Kconfig
++++ b/drivers/input/joystick/Kconfig
+@@ -382,4 +382,12 @@ config JOYSTICK_FSIA6B
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called fsia6b.
+ 
++config JOYSTICK_RPISENSE
++	tristate "Raspberry Pi Sense HAT joystick"
++	depends on GPIOLIB && INPUT
++	select MFD_RPISENSE_CORE
++
++	help
++	  This is the joystick driver for the Raspberry Pi Sense HAT
++
+ endif
+--- a/drivers/input/joystick/Makefile
++++ b/drivers/input/joystick/Makefile
+@@ -37,4 +37,4 @@ obj-$(CONFIG_JOYSTICK_WARRIOR)		+= warri
+ obj-$(CONFIG_JOYSTICK_WALKERA0701)	+= walkera0701.o
+ obj-$(CONFIG_JOYSTICK_XPAD)		+= xpad.o
+ obj-$(CONFIG_JOYSTICK_ZHENHUA)		+= zhenhua.o
+-
++obj-$(CONFIG_JOYSTICK_RPISENSE)		+= rpisense-js.o
+--- /dev/null
++++ b/drivers/input/joystick/rpisense-js.c
+@@ -0,0 +1,153 @@
++/*
++ * Raspberry Pi Sense HAT joystick driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/mfd/rpisense/joystick.h>
++#include <linux/mfd/rpisense/core.h>
++
++static struct rpisense *rpisense;
++static unsigned char keymap[5] = {KEY_DOWN, KEY_RIGHT, KEY_UP, KEY_ENTER, KEY_LEFT,};
++
++static void keys_work_fn(struct work_struct *work)
++{
++	int i;
++	static s32 prev_keys;
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++	s32 keys = rpisense_reg_read(rpisense, RPISENSE_KEYS);
++	s32 changes = keys ^ prev_keys;
++
++	prev_keys = keys;
++	for (i = 0; i < 5; i++) {
++		if (changes & 1) {
++			input_report_key(rpisense_js->keys_dev,
++					 keymap[i], keys & 1);
++		}
++		changes >>= 1;
++		keys >>= 1;
++	}
++	input_sync(rpisense_js->keys_dev);
++}
++
++static irqreturn_t keys_irq_handler(int irq, void *pdev)
++{
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++
++	schedule_work(&rpisense_js->keys_work_s);
++	return IRQ_HANDLED;
++}
++
++static int rpisense_js_probe(struct platform_device *pdev)
++{
++	int ret;
++	int i;
++	struct rpisense_js *rpisense_js;
++
++	rpisense = rpisense_get_dev();
++	rpisense_js = &rpisense->joystick;
++
++	INIT_WORK(&rpisense_js->keys_work_s, keys_work_fn);
++
++	rpisense_js->keys_dev = input_allocate_device();
++	if (!rpisense_js->keys_dev) {
++		dev_err(&pdev->dev, "Could not allocate input device.\n");
++		return -ENOMEM;
++	}
++
++	rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY);
++	for (i = 0; i < ARRAY_SIZE(keymap); i++) {
++		set_bit(keymap[i],
++			rpisense_js->keys_dev->keybit);
++	}
++
++	rpisense_js->keys_dev->name = "Raspberry Pi Sense HAT Joystick";
++	rpisense_js->keys_dev->phys = "rpi-sense-joy/input0";
++	rpisense_js->keys_dev->id.bustype = BUS_I2C;
++	rpisense_js->keys_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
++	rpisense_js->keys_dev->keycode = keymap;
++	rpisense_js->keys_dev->keycodesize = sizeof(unsigned char);
++	rpisense_js->keys_dev->keycodemax = ARRAY_SIZE(keymap);
++
++	ret = input_register_device(rpisense_js->keys_dev);
++	if (ret) {
++		dev_err(&pdev->dev, "Could not register input device.\n");
++		goto err_keys_alloc;
++	}
++
++	ret = gpiod_direction_input(rpisense_js->keys_desc);
++	if (ret) {
++		dev_err(&pdev->dev, "Could not set keys-int direction.\n");
++		goto err_keys_reg;
++	}
++
++	rpisense_js->keys_irq = gpiod_to_irq(rpisense_js->keys_desc);
++	if (rpisense_js->keys_irq < 0) {
++		dev_err(&pdev->dev, "Could not determine keys-int IRQ.\n");
++		ret = rpisense_js->keys_irq;
++		goto err_keys_reg;
++	}
++
++	ret = devm_request_irq(&pdev->dev, rpisense_js->keys_irq,
++			       keys_irq_handler, IRQF_TRIGGER_RISING,
++			       "keys", &pdev->dev);
++	if (ret) {
++		dev_err(&pdev->dev, "IRQ request failed.\n");
++		goto err_keys_reg;
++	}
++	return 0;
++err_keys_reg:
++	input_unregister_device(rpisense_js->keys_dev);
++err_keys_alloc:
++	input_free_device(rpisense_js->keys_dev);
++	return ret;
++}
++
++static int rpisense_js_remove(struct platform_device *pdev)
++{
++	struct rpisense_js *rpisense_js = &rpisense->joystick;
++
++	input_unregister_device(rpisense_js->keys_dev);
++	input_free_device(rpisense_js->keys_dev);
++	return 0;
++}
++
++#ifdef CONFIG_OF
++static const struct of_device_id rpisense_js_id[] = {
++	{ .compatible = "rpi,rpi-sense-js" },
++	{ },
++};
++MODULE_DEVICE_TABLE(of, rpisense_js_id);
++#endif
++
++static struct platform_device_id rpisense_js_device_id[] = {
++	{ .name = "rpi-sense-js" },
++	{ },
++};
++MODULE_DEVICE_TABLE(platform, rpisense_js_device_id);
++
++static struct platform_driver rpisense_js_driver = {
++	.probe = rpisense_js_probe,
++	.remove = rpisense_js_remove,
++	.driver = {
++		.name = "rpi-sense-js",
++		.owner = THIS_MODULE,
++	},
++};
++
++module_platform_driver(rpisense_js_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT joystick driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
+--- a/drivers/mfd/Kconfig
++++ b/drivers/mfd/Kconfig
+@@ -11,6 +11,14 @@ config MFD_CORE
+ 	select IRQ_DOMAIN
+ 	default n
+ 
++config MFD_RPISENSE_CORE
++	tristate "Raspberry Pi Sense HAT core functions"
++	depends on I2C
++	select MFD_CORE
++	help
++	  This is the core driver for the Raspberry Pi Sense HAT. This provides
++	  the necessary functions to communicate with the hardware.
++
+ config MFD_CS5535
+ 	tristate "AMD CS5535 and CS5536 southbridge core functions"
+ 	select MFD_CORE
+--- a/drivers/mfd/Makefile
++++ b/drivers/mfd/Makefile
+@@ -263,6 +263,7 @@ obj-$(CONFIG_MFD_ROHM_BD71828)	+= rohm-b
+ obj-$(CONFIG_MFD_ROHM_BD718XX)	+= rohm-bd718x7.o
+ obj-$(CONFIG_MFD_STMFX) 	+= stmfx.o
+ obj-$(CONFIG_MFD_KHADAS_MCU) 	+= khadas-mcu.o
++obj-$(CONFIG_MFD_RPISENSE_CORE)	+= rpisense-core.o
+ 
+ obj-$(CONFIG_SGI_MFD_IOC3)	+= ioc3.o
+ obj-$(CONFIG_MFD_SIMPLE_MFD_I2C)	+= simple-mfd-i2c.o
+--- /dev/null
++++ b/drivers/mfd/rpisense-core.c
+@@ -0,0 +1,165 @@
++/*
++ * Raspberry Pi Sense HAT core driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ *  This driver is based on wm8350 implementation.
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <linux/i2c.h>
++#include <linux/platform_device.h>
++#include <linux/mfd/rpisense/core.h>
++#include <linux/slab.h>
++
++static struct rpisense *rpisense;
++
++static void rpisense_client_dev_register(struct rpisense *rpisense,
++					 const char *name,
++					 struct platform_device **pdev)
++{
++	int ret;
++
++	*pdev = platform_device_alloc(name, -1);
++	if (*pdev == NULL) {
++		dev_err(rpisense->dev, "Failed to allocate %s\n", name);
++		return;
++	}
++
++	(*pdev)->dev.parent = rpisense->dev;
++	platform_set_drvdata(*pdev, rpisense);
++	ret = platform_device_add(*pdev);
++	if (ret != 0) {
++		dev_err(rpisense->dev, "Failed to register %s: %d\n",
++			name, ret);
++		platform_device_put(*pdev);
++		*pdev = NULL;
++	}
++}
++
++static int rpisense_probe(struct i2c_client *i2c,
++			       const struct i2c_device_id *id)
++{
++	int ret;
++	struct rpisense_js *rpisense_js;
++
++	rpisense = devm_kzalloc(&i2c->dev, sizeof(struct rpisense), GFP_KERNEL);
++	if (rpisense == NULL)
++		return -ENOMEM;
++
++	i2c_set_clientdata(i2c, rpisense);
++	rpisense->dev = &i2c->dev;
++	rpisense->i2c_client = i2c;
++
++	ret = rpisense_reg_read(rpisense, RPISENSE_WAI);
++	if (ret > 0) {
++		if (ret != 's')
++			return -EINVAL;
++	} else {
++		return ret;
++	}
++	ret = rpisense_reg_read(rpisense, RPISENSE_VER);
++	if (ret < 0)
++		return ret;
++
++	dev_info(rpisense->dev,
++		 "Raspberry Pi Sense HAT firmware version %i\n", ret);
++
++	rpisense_js = &rpisense->joystick;
++	rpisense_js->keys_desc = devm_gpiod_get(&i2c->dev,
++						"keys-int", GPIOD_IN);
++	if (IS_ERR(rpisense_js->keys_desc)) {
++		dev_warn(&i2c->dev, "Failed to get keys-int descriptor.\n");
++		rpisense_js->keys_desc = gpio_to_desc(23);
++		if (rpisense_js->keys_desc == NULL) {
++			dev_err(&i2c->dev, "GPIO23 fallback failed.\n");
++			return PTR_ERR(rpisense_js->keys_desc);
++		}
++	}
++	rpisense_client_dev_register(rpisense, "rpi-sense-js",
++				     &(rpisense->joystick.pdev));
++	rpisense_client_dev_register(rpisense, "rpi-sense-fb",
++				     &(rpisense->framebuffer.pdev));
++
++	return 0;
++}
++
++static int rpisense_remove(struct i2c_client *i2c)
++{
++	struct rpisense *rpisense = i2c_get_clientdata(i2c);
++
++	platform_device_unregister(rpisense->joystick.pdev);
++	return 0;
++}
++
++struct rpisense *rpisense_get_dev(void)
++{
++	return rpisense;
++}
++EXPORT_SYMBOL_GPL(rpisense_get_dev);
++
++s32 rpisense_reg_read(struct rpisense *rpisense, int reg)
++{
++	int ret = i2c_smbus_read_byte_data(rpisense->i2c_client, reg);
++
++	if (ret < 0)
++		dev_err(rpisense->dev, "Read from reg %d failed\n", reg);
++	/* Due to the BCM270x I2C clock stretching bug, some values
++	 * may have MSB set. Clear it to avoid incorrect values.
++	 * */
++	return ret & 0x7F;
++}
++EXPORT_SYMBOL_GPL(rpisense_reg_read);
++
++int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count)
++{
++	int ret = i2c_master_send(rpisense->i2c_client, buf, count);
++
++	if (ret < 0)
++		dev_err(rpisense->dev, "Block write failed\n");
++	return ret;
++}
++EXPORT_SYMBOL_GPL(rpisense_block_write);
++
++static const struct i2c_device_id rpisense_i2c_id[] = {
++	{ "rpi-sense", 0 },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, rpisense_i2c_id);
++
++#ifdef CONFIG_OF
++static const struct of_device_id rpisense_core_id[] = {
++	{ .compatible = "rpi,rpi-sense" },
++	{ },
++};
++MODULE_DEVICE_TABLE(of, rpisense_core_id);
++#endif
++
++
++static struct i2c_driver rpisense_driver = {
++	.driver = {
++		   .name = "rpi-sense",
++		   .owner = THIS_MODULE,
++	},
++	.probe = rpisense_probe,
++	.remove = rpisense_remove,
++	.id_table = rpisense_i2c_id,
++};
++
++module_i2c_driver(rpisense_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT core driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
++
+--- a/drivers/video/fbdev/Kconfig
++++ b/drivers/video/fbdev/Kconfig
+@@ -2250,6 +2250,19 @@ config FB_SM712
+ 	  called sm712fb. If you want to compile it as a module, say M
+ 	  here and read <file:Documentation/kbuild/modules.rst>.
+ 
++config FB_RPISENSE
++	tristate "Raspberry Pi Sense HAT framebuffer"
++	depends on FB
++	select MFD_RPISENSE_CORE
++	select FB_SYS_FOPS
++	select FB_SYS_FILLRECT
++	select FB_SYS_COPYAREA
++	select FB_SYS_IMAGEBLIT
++	select FB_DEFERRED_IO
++
++	help
++	  This is the framebuffer driver for the Raspberry Pi Sense HAT
++
+ source "drivers/video/fbdev/omap/Kconfig"
+ source "drivers/video/fbdev/omap2/Kconfig"
+ source "drivers/video/fbdev/mmp/Kconfig"
+--- a/drivers/video/fbdev/Makefile
++++ b/drivers/video/fbdev/Makefile
+@@ -130,6 +130,7 @@ obj-$(CONFIG_FB_MX3)		  += mx3fb.o
+ obj-$(CONFIG_FB_DA8XX)		  += da8xx-fb.o
+ obj-$(CONFIG_FB_SSD1307)	  += ssd1307fb.o
+ obj-$(CONFIG_FB_SIMPLE)           += simplefb.o
++obj-$(CONFIG_FB_RPISENSE)	  += rpisense-fb.o
+ 
+ # the test framebuffer is last
+ obj-$(CONFIG_FB_VIRTUAL)          += vfb.o
+--- /dev/null
++++ b/drivers/video/fbdev/rpisense-fb.c
+@@ -0,0 +1,293 @@
++/*
++ * Raspberry Pi Sense HAT framebuffer driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <linux/delay.h>
++#include <linux/fb.h>
++#include <linux/init.h>
++
++#include <linux/mfd/rpisense/framebuffer.h>
++#include <linux/mfd/rpisense/core.h>
++
++static bool lowlight;
++module_param(lowlight, bool, 0);
++MODULE_PARM_DESC(lowlight, "Reduce LED matrix brightness to one third");
++
++static struct rpisense *rpisense;
++
++struct rpisense_fb_param {
++	char __iomem *vmem;
++	u8 *vmem_work;
++	u32 vmemsize;
++	u8 *gamma;
++};
++
++static u8 gamma_default[32] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01,
++			       0x02, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x07,
++			       0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0E, 0x0F, 0x11,
++			       0x12, 0x14, 0x15, 0x17, 0x19, 0x1B, 0x1D, 0x1F,};
++
++static u8 gamma_low[32] = {0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
++			   0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02,
++			   0x03, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05, 0x06,
++			   0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x0A, 0x0A,};
++
++static u8 gamma_user[32];
++
++static struct rpisense_fb_param rpisense_fb_param = {
++	.vmem = NULL,
++	.vmemsize = 128,
++	.gamma = gamma_default,
++};
++
++static struct fb_deferred_io rpisense_fb_defio;
++
++static struct fb_fix_screeninfo rpisense_fb_fix = {
++	.id =		"RPi-Sense FB",
++	.type =		FB_TYPE_PACKED_PIXELS,
++	.visual =	FB_VISUAL_TRUECOLOR,
++	.xpanstep =	0,
++	.ypanstep =	0,
++	.ywrapstep =	0,
++	.accel =	FB_ACCEL_NONE,
++	.line_length =	16,
++};
++
++static struct fb_var_screeninfo rpisense_fb_var = {
++	.xres		= 8,
++	.yres		= 8,
++	.xres_virtual	= 8,
++	.yres_virtual	= 8,
++	.bits_per_pixel = 16,
++	.red		= {11, 5, 0},
++	.green		= {5, 6, 0},
++	.blue		= {0, 5, 0},
++};
++
++static ssize_t rpisense_fb_write(struct fb_info *info,
++				 const char __user *buf, size_t count,
++				 loff_t *ppos)
++{
++	ssize_t res = fb_sys_write(info, buf, count, ppos);
++
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++	return res;
++}
++
++static void rpisense_fb_fillrect(struct fb_info *info,
++				 const struct fb_fillrect *rect)
++{
++	sys_fillrect(info, rect);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_copyarea(struct fb_info *info,
++				 const struct fb_copyarea *area)
++{
++	sys_copyarea(info, area);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_imageblit(struct fb_info *info,
++				  const struct fb_image *image)
++{
++	sys_imageblit(info, image);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++}
++
++static void rpisense_fb_deferred_io(struct fb_info *info,
++				struct list_head *pagelist)
++{
++	int i;
++	int j;
++	u8 *vmem_work = rpisense_fb_param.vmem_work;
++	u16 *mem = (u16 *)rpisense_fb_param.vmem;
++	u8 *gamma = rpisense_fb_param.gamma;
++
++	vmem_work[0] = 0;
++	for (j = 0; j < 8; j++) {
++		for (i = 0; i < 8; i++) {
++			vmem_work[(j * 24) + i + 1] =
++				gamma[(mem[(j * 8) + i] >> 11) & 0x1F];
++			vmem_work[(j * 24) + (i + 8) + 1] =
++				gamma[(mem[(j * 8) + i] >> 6) & 0x1F];
++			vmem_work[(j * 24) + (i + 16) + 1] =
++				gamma[(mem[(j * 8) + i]) & 0x1F];
++		}
++	}
++	rpisense_block_write(rpisense, vmem_work, 193);
++}
++
++static struct fb_deferred_io rpisense_fb_defio = {
++	.delay		= HZ/100,
++	.deferred_io	= rpisense_fb_deferred_io,
++};
++
++static int rpisense_fb_ioctl(struct fb_info *info, unsigned int cmd,
++			     unsigned long arg)
++{
++	switch (cmd) {
++	case SENSEFB_FBIOGET_GAMMA:
++		if (copy_to_user((void __user *) arg, rpisense_fb_param.gamma,
++				 sizeof(u8[32])))
++			return -EFAULT;
++		return 0;
++	case SENSEFB_FBIOSET_GAMMA:
++		if (copy_from_user(gamma_user, (void __user *)arg,
++				   sizeof(u8[32])))
++			return -EFAULT;
++		rpisense_fb_param.gamma = gamma_user;
++		schedule_delayed_work(&info->deferred_work,
++				      rpisense_fb_defio.delay);
++		return 0;
++	case SENSEFB_FBIORESET_GAMMA:
++		switch (arg) {
++		case 0:
++			rpisense_fb_param.gamma = gamma_default;
++			break;
++		case 1:
++			rpisense_fb_param.gamma = gamma_low;
++			break;
++		case 2:
++			rpisense_fb_param.gamma = gamma_user;
++			break;
++		default:
++			return -EINVAL;
++		}
++		schedule_delayed_work(&info->deferred_work,
++				      rpisense_fb_defio.delay);
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static struct fb_ops rpisense_fb_ops = {
++	.owner		= THIS_MODULE,
++	.fb_read	= fb_sys_read,
++	.fb_write	= rpisense_fb_write,
++	.fb_fillrect	= rpisense_fb_fillrect,
++	.fb_copyarea	= rpisense_fb_copyarea,
++	.fb_imageblit	= rpisense_fb_imageblit,
++	.fb_ioctl	= rpisense_fb_ioctl,
++};
++
++static int rpisense_fb_probe(struct platform_device *pdev)
++{
++	struct fb_info *info;
++	int ret = -ENOMEM;
++	struct rpisense_fb *rpisense_fb;
++
++	rpisense = rpisense_get_dev();
++	rpisense_fb = &rpisense->framebuffer;
++
++	rpisense_fb_param.vmem = vzalloc(rpisense_fb_param.vmemsize);
++	if (!rpisense_fb_param.vmem)
++		return ret;
++
++	rpisense_fb_param.vmem_work = devm_kmalloc(&pdev->dev, 193, GFP_KERNEL);
++	if (!rpisense_fb_param.vmem_work)
++		goto err_malloc;
++
++	info = framebuffer_alloc(0, &pdev->dev);
++	if (!info) {
++		dev_err(&pdev->dev, "Could not allocate framebuffer.\n");
++		goto err_malloc;
++	}
++	rpisense_fb->info = info;
++
++	rpisense_fb_fix.smem_start = (unsigned long)rpisense_fb_param.vmem;
++	rpisense_fb_fix.smem_len = rpisense_fb_param.vmemsize;
++
++	info->fbops = &rpisense_fb_ops;
++	info->fix = rpisense_fb_fix;
++	info->var = rpisense_fb_var;
++	info->fbdefio = &rpisense_fb_defio;
++	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
++	info->screen_base = rpisense_fb_param.vmem;
++	info->screen_size = rpisense_fb_param.vmemsize;
++
++	if (lowlight)
++		rpisense_fb_param.gamma = gamma_low;
++
++	fb_deferred_io_init(info);
++
++	ret = register_framebuffer(info);
++	if (ret < 0) {
++		dev_err(&pdev->dev, "Could not register framebuffer.\n");
++		goto err_fballoc;
++	}
++
++	fb_info(info, "%s frame buffer device\n", info->fix.id);
++	schedule_delayed_work(&info->deferred_work, rpisense_fb_defio.delay);
++	return 0;
++err_fballoc:
++	framebuffer_release(info);
++err_malloc:
++	vfree(rpisense_fb_param.vmem);
++	return ret;
++}
++
++static int rpisense_fb_remove(struct platform_device *pdev)
++{
++	struct rpisense_fb *rpisense_fb = &rpisense->framebuffer;
++	struct fb_info *info = rpisense_fb->info;
++
++	if (info) {
++		unregister_framebuffer(info);
++		fb_deferred_io_cleanup(info);
++		framebuffer_release(info);
++		vfree(rpisense_fb_param.vmem);
++	}
++
++	return 0;
++}
++
++#ifdef CONFIG_OF
++static const struct of_device_id rpisense_fb_id[] = {
++	{ .compatible = "rpi,rpi-sense-fb" },
++	{ },
++};
++MODULE_DEVICE_TABLE(of, rpisense_fb_id);
++#endif
++
++static struct platform_device_id rpisense_fb_device_id[] = {
++	{ .name = "rpi-sense-fb" },
++	{ },
++};
++MODULE_DEVICE_TABLE(platform, rpisense_fb_device_id);
++
++static struct platform_driver rpisense_fb_driver = {
++	.probe = rpisense_fb_probe,
++	.remove = rpisense_fb_remove,
++	.driver = {
++		.name = "rpi-sense-fb",
++		.owner = THIS_MODULE,
++	},
++};
++
++module_platform_driver(rpisense_fb_driver);
++
++MODULE_DESCRIPTION("Raspberry Pi Sense HAT framebuffer driver");
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_LICENSE("GPL");
++
+--- /dev/null
++++ b/include/linux/mfd/rpisense/core.h
+@@ -0,0 +1,47 @@
++/*
++ * Raspberry Pi Sense HAT core driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_MFD_RPISENSE_CORE_H_
++#define __LINUX_MFD_RPISENSE_CORE_H_
++
++#include <linux/mfd/rpisense/joystick.h>
++#include <linux/mfd/rpisense/framebuffer.h>
++
++/*
++ * Register values.
++ */
++#define RPISENSE_FB			0x00
++#define RPISENSE_WAI			0xF0
++#define RPISENSE_VER			0xF1
++#define RPISENSE_KEYS			0xF2
++#define RPISENSE_EE_WP			0xF3
++
++#define RPISENSE_ID			's'
++
++struct rpisense {
++	struct device *dev;
++	struct i2c_client *i2c_client;
++
++	/* Client devices */
++	struct rpisense_js joystick;
++	struct rpisense_fb framebuffer;
++};
++
++struct rpisense *rpisense_get_dev(void);
++s32 rpisense_reg_read(struct rpisense *rpisense, int reg);
++int rpisense_reg_write(struct rpisense *rpisense, int reg, u16 val);
++int rpisense_block_write(struct rpisense *rpisense, const char *buf, int count);
++
++#endif
+--- /dev/null
++++ b/include/linux/mfd/rpisense/framebuffer.h
+@@ -0,0 +1,32 @@
++/*
++ * Raspberry Pi Sense HAT framebuffer driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_RPISENSE_FB_H_
++#define __LINUX_RPISENSE_FB_H_
++
++#define SENSEFB_FBIO_IOC_MAGIC 0xF1
++
++#define SENSEFB_FBIOGET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 0)
++#define SENSEFB_FBIOSET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 1)
++#define SENSEFB_FBIORESET_GAMMA _IO(SENSEFB_FBIO_IOC_MAGIC, 2)
++
++struct rpisense;
++
++struct rpisense_fb {
++	struct platform_device *pdev;
++	struct fb_info *info;
++};
++
++#endif
+--- /dev/null
++++ b/include/linux/mfd/rpisense/joystick.h
+@@ -0,0 +1,35 @@
++/*
++ * Raspberry Pi Sense HAT joystick driver
++ * http://raspberrypi.org
++ *
++ * Copyright (C) 2015 Raspberry Pi
++ *
++ * Author: Serge Schneider
++ *
++ *  This program is free software; you can redistribute  it and/or modify it
++ *  under  the terms of  the GNU General  Public License as published by the
++ *  Free Software Foundation;  either version 2 of the  License, or (at your
++ *  option) any later version.
++ *
++ */
++
++#ifndef __LINUX_RPISENSE_JOYSTICK_H_
++#define __LINUX_RPISENSE_JOYSTICK_H_
++
++#include <linux/input.h>
++#include <linux/interrupt.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++struct rpisense;
++
++struct rpisense_js {
++	struct platform_device *pdev;
++	struct input_dev *keys_dev;
++	struct gpio_desc *keys_desc;
++	struct work_struct keys_work_s;
++	int keys_irq;
++};
++
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0060-Add-support-for-all-the-downstream-rpi-sound-card-dr.patch b/target/linux/bcm27xx/patches-5.10/950-0060-Add-support-for-all-the-downstream-rpi-sound-card-dr.patch
new file mode 100644
index 0000000000..75b0d7a1a0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0060-Add-support-for-all-the-downstream-rpi-sound-card-dr.patch
@@ -0,0 +1,15106 @@
+From 6e520cdc4c898f0d02bbe40e2c466f9694933d9c Mon Sep 17 00:00:00 2001
+From: Florian Meier <florian.meier@koalo.de>
+Date: Mon, 25 Jan 2016 15:48:59 +0000
+Subject: [PATCH] Add support for all the downstream rpi sound card
+ drivers
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+ASoC: Add support for Rpi-DAC
+
+ASoC: Add prompt for ICS43432 codec
+
+Without a prompt string, a config setting can't be included in a
+defconfig. Give CONFIG_SND_SOC_ICS43432 a prompt so that Pi soundcards
+can use the driver.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+Add IQaudIO Sound Card support for Raspberry Pi
+
+Set a limit of 0dB on Digital Volume Control
+
+The main volume control in the PCM512x DAC has a range up to
++24dB. This is dangerously loud and can potentially cause massive
+clipping in the output stages. Therefore this sets a sensible
+limit of 0dB for this control.
+
+Allow up to 24dB digital gain to be applied when using IQAudIO DAC+
+
+24db_digital_gain DT param can be used to specify that PCM512x
+codec "Digital" volume control should not be limited to 0dB gain,
+and if specified will allow the full 24dB gain.
+
+Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt
+
+Add the ability to set the card name, dai name and dai stream name, from
+dt config.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+IQaudIO: auto-mute for AMP+ and DigiAMP+
+
+IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute
+and auto mute.
+
+Revision 2, auto mute implementing HiassofT suggestion to mute/unmute
+using set_bias_level, rather than startup/shutdown....
+"By default DAPM waits 5 seconds (pmdown_time) before shutting down
+playback streams so a close/stop immediately followed by open/start
+doesn't trigger an amp mute+unmute."
+
+Tested on both AMP+ (via DAC+) and DigiAMP+, with both options...
+
+dtoverlay=iqaudio-dacplus,unmute_amp
+ "one-shot" unmute when kernel module loads.
+
+dtoverlay=iqaudio-dacplus,auto_mute_amp
+ Unmute amp when ALSA device opened by a client. Mute, with 5 second delay
+ when ALSA device closed. (Re-opening the device within the 5 second close
+ window, will cancel mute.)
+
+Revision 4, using gpiod.
+
+Revision 5, clean-up formatting before adding mute code.
+ - Convert tab plus 4 space formatting to 2x tab
+ - Remove '// NOT USED' commented code
+
+Revision 6, don't attempt to "one-shot" unmute amp, unless card is
+successfully registered.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+ASoC: iqaudio-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: iqaudio-dac: use modern dai_link style
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+Added support for HiFiBerry DAC+
+
+The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses
+a different codec chip (PCM5122), therefore a new driver is necessary.
+
+Add support for the HiFiBerry DAC+ Pro.
+
+The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators.
+
+An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame.
+
+Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+
+
+24db_digital_gain DT param can be used to specify that PCM512x
+codec "Digital" volume control should not be limited to 0dB gain,
+and if specified will allow the full 24dB gain.
+
+Add dt param to force HiFiBerry DAC+ Pro into slave mode
+
+"dtoverlay=hifiberry-dacplus,slave"
+
+Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode,
+with Pi as master for bit and frame clock.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+Fixed a bug when using 352.8kHz sample rate
+
+Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
+
+ASoC: pcm512x: revert downstream changes
+
+This partially reverts commit 185ea05465aac8bf02a0d2b2f4289d42c72870b7
+which was added by https://github.com/raspberrypi/linux/pull/1152
+
+The downstream pcm512x changes caused a regression, it broke normal
+use of the 24bit format with the codec, eg when using simple-audio-card.
+
+The actual bug with 24bit playback is the incorrect usage
+of physical_width in various drivers in the downstream tree
+which causes 24bit data to be transmitted with 32 clock
+cycles. So it's not the pcm512x that needs fixing, it's the
+soundcard drivers.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplus: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplus: transmit S24_LE with 64 BCLK cycles
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+hifiberry_dacplus: switch to snd_soc_dai_set_bclk_ratio
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplus: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add driver for rpi-proto
+
+Forward port of 3.10.x driver from https://github.com/koalo
+We are using a custom board and would like to use rpi 3.18.x
+kernel. Patch works fine for our embedded system.
+
+URL to the audio chip:
+http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/
+
+Playback tested with devicetree enabled.
+
+Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
+
+ASoC: rpi-proto: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add Support for JustBoom Audio boards
+
+justboom-dac: Adjust for ALSA API change
+
+As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card *
+rather than a struct snd_soc_codec *.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+ASoC: justboom-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params as it's no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: justboom-dac: use modern dai_link style
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+New AudioInjector.net Pi soundcard with low jitter audio in and out.
+
+Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile.
+Adds the dts overlay and updates the Makefile and README.
+Updates the relevant defconfig files to enable building for the Raspberry Pi.
+Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions.
+
+Added support for headphones, microphone and bclk_ratio settings.
+
+This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added.
+
+ASoC: audioinjector-pi-soundcard: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804
+
+ASoC: digidac1-soundcard: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add support for Dion Audio LOCO DAC-AMP HAT
+
+Using dedicated machine driver and pcm5102a codec driver.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+
+ASoC: dionaudio_loco: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Allo Piano DAC boards: Initial 2 channel (stereo) support (#1645)
+
+Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards,
+using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC
+machine driver.
+
+NB. The initial support is 2 channel (stereo) ONLY!
+(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output,
+ pending an update to the upstream pcm512x codec driver, which will have
+ to be submitted via upstream. With the initial downstream support,
+ provided by this patch, the Piano DAC 2.1 subwoofer outputs will
+ not function.)
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
+Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
+
+ASoC: allo-piano-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params and ops as they are no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: allo-piano-dac: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi.
+
+The Piano DAC 2.1 has support for 4 channels with subwoofer.
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
+Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>
+
+Add clock changes and mute gpios (#1938)
+
+Also improve code style and adhere to ALSA coding conventions.
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
+Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>
+
+PianoPlus: Dual Mono & Dual Stereo features added (#2069)
+
+allo-piano-dac-plus: Master volume added + fixes
+
+Master volume added, which controls both DACs volumes.
+
+See: https://github.com/raspberrypi/linux/pull/2149
+
+Also fix initial max volume, default mode value, and unmute.
+
+Signed-off-by: allocom <sparky-dev@allo.com>
+
+ASoC: allo-piano-dac-plus: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+sound: bcm: Fix memset dereference warning
+
+This warning appears with GCC 6.4.0 from toolchains.bootlin.com:
+
+../sound/soc/bcm/allo-piano-dac-plus.c: In function ‘snd_allo_piano_dac_init’:
+../sound/soc/bcm/allo-piano-dac-plus.c:711:30: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
+  memset(glb_ptr, 0x00, sizeof(glb_ptr));
+                              ^
+
+Suggested-by: Phil Elwell <phil@raspberrypi.org>
+Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
+
+ASoC: allo-piano-dac-plus: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add support for Allo Boss DAC add-on board for Raspberry Pi. (#1924)
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Deepak <deepak@zilogic.com>
+Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
+
+Add support for new clock rate and mute gpios.
+
+Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
+Reviewed-by: Deepak <deepak@zilogic.com>
+Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>
+
+ASoC: allo-boss-dac: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+allo-boss-dac: switch to snd_soc_dai_set_bclk_ratio
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: allo-boss-dac: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Support for Blokas Labs pisound board
+
+Pisound dynamic overlay (#1760)
+
+Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay.
+
+Print a logline when the kernel module is removed.
+
+pisound improvements:
+
+* Added a writable sysfs object to enable scripts / user space software
+to blink MIDI activity LEDs for variable duration.
+* Improved hw_param constraints setting.
+* Added compatibility with S16_LE sample format.
+* Exposed some simple placeholder volume controls, so the card appears
+in volumealsa widget.
+
+Add missing SND_PISOUND selects dependency to SND_RAWMIDI
+
+Without it the Pisound module fails to compile.
+See https://github.com/raspberrypi/linux/issues/2366
+
+Updates for Pisound module code:
+
+	* Merged 'Fix a warning in DEBUG builds' (1c8b82b).
+	* Updating some strings and copyright information.
+	* Fix for handling high load of MIDI input and output.
+	* Use dual rate oversampling ratio for 96kHz instead of single
+	  rate one.
+
+Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
+
+Fixing memset call in pisound.c
+
+Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
+
+Fix for Pisound's MIDI Input getting blocked for a while in rare cases.
+
+There was a possible race condition which could lead to Input's FIFO queue
+to be underflown, causing high amount of processing in the worker thread for
+some period of time.
+
+Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>
+
+Fix for Pisound kernel module in Real Time kernel configuration.
+
+When handler of data_available interrupt is fired, queue_work ends up
+getting called and it can block on a spin lock which is not allowed in
+interrupt context. The fix was to run the handler from a thread context
+instead.
+
+Pisound: Remove spinlock usage around spi_sync
+
+ASoC: pisound: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+ASoC: pisound: fix the parameter for spi_device_match
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+ASoC: Add driver for Cirrus Logic Audio Card
+
+Note: due to problems with deferred probing of regulators
+the following softdep should be added to a modprobe.d file
+
+softdep arizona-spi pre: arizona-ldo1
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: rpi-cirrus: use modern dai_link style
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT
+
+Signed-off-by: Miquel Blauw <info@dionaudio.nl>
+
+ASoC: dionaudio_loco-v2: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params and ops as they are no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: dionaudio_loco-v2: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add support for Fe-Pi audio sound card. (#1867)
+
+Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
+Mechanical specification of the board is the same the Raspberry Pi Zero.
+3.5mm jacks for Headphone/Mic, Line In, and Line Out.
+
+Signed-off-by: Henry Kupis <fe-pi@cox.net>
+
+ASoC: fe-pi-audio: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Add support for the AudioInjector.net Octo sound card
+
+AudioInjector Octo: sample rates, regulators, reset
+
+This patch adds new sample rates to the Audioinjector Octo sound card. The
+new supported rates are (in kHz) :
+96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7
+
+Reference the bcm270x DT regulators in the overlay.
+
+This patch adds a reset GPIO for the AudioInjector.net octo sound card.
+
+Audioinjector octo : Make the playback and capture symmetric
+
+This patch ensures that the sample rate and channel count of the audioinjector
+octo sound card are symmetric.
+
+audioinjector-octo: Add continuous clock feature
+
+By user request, add a switch to prevent the clocks being stopped when
+the stream is paused, stopped or shutdown. Provide access to the switch
+by adding a 'non-stop-clocks' parameter to the audioinjector-addons
+overlay.
+
+See: https://github.com/raspberrypi/linux/issues/2409
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+sound: Fixes for audioinjector-octo under 4.19
+
+1. Move the DT alias declaration to the I2C shim in the cases
+where the shim is enabled. This works around a problem caused by a
+4.19 commit [1] that generates DT/OF uevents for I2C drivers.
+
+2. Fix the diagnostics in an error path of the soundcard driver to
+correctly identify the reason for the failure to load.
+
+3. Move the declaration of the clock node in the overlay outside
+the I2C node to avoid warnings.
+
+4. Sort the overlay nodes so that dependencies are only to earlier
+fragments, in an attempt to get runtime dtoverlay application to
+work (it still doesn't...)
+
+See: https://github.com/Audio-Injector/Octo/issues/14
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+[1] af503716ac14 ("i2c: core: report OF style module alias for devices registered via OF")
+
+ASoC: audioinjector-octo-soundcard: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Driver support for Google voiceHAT soundcard.
+
+ASoC: googlevoicehat-codec: Use correct device when grabbing GPIO
+
+The fixup for the VoiceHAT in 4.18 incorrectly tried to find the
+sdmode GPIO pin under the card device, not the codec device.
+This failed, and therefore caused the device probe to fail.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+ASoC: googlevoicehat-codec: Reformat for kernel coding standards
+
+Fix all whitespace, indentation, and bracing errors.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+ASoC: googlevoicehat-codec: Make driver function structure const
+
+Make voicehat_component_driver a const structure.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+ASoC: googlevoicehat-codec: Only convert from ms to jiffies once
+
+Minor optimisation and allows to become checkpatch clean.
+A msec value is read out of DT or from a define, and convert once to
+jiffies, rather than every time that it is used.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+Driver and overlay for Allo Katana DAC
+
+Allo Katana DAC: Updated default values
+
+Signed-off-by: Jaikumar <jaikumar@cem-solutions.com>
+
+Added mute stream func
+
+Signed-off-by: Jaikumar <jaikumar@cem-solutions.net>
+
+codecs: Correct Katana minimum volume
+
+Update Katana minimum volume to get the exact 0.5 dB value in each step.
+
+Signed-off-by: Sudeep Kumar <sudeepkumar@cem-solutions.net>
+
+ASoC: Add generic RPI driver for simple soundcards.
+
+The RPI simple sound card driver provides a generic ALSA SOC card driver
+supporting a variety of Pi HAT soundcards. The intention is to avoid
+the duplication of code for cards that can't be fully supported by
+the soc simple/graph cards but are otherwise almost identical.
+
+This initial commit adds support for the ADAU1977 ADC, Google VoiceHat,
+HifiBerry AMP, HifiBerry DAC and RPI DAC.
+
+Signed-off-by: Tim Gover <tim.gover@raspberrypi.org>
+
+ASoC: Use correct card name in rpi-simple driver
+
+Use the specific card name from drvdata instead of the snd_rpi_simple
+
+rpi-simple-soundcard: Use nicer driver name "RPi-simple"
+
+Rename the driver from "RPI simple soundcard" to "RPi-simple" so that
+the driver name won't be mangled allowing to be used unaltered as the
+card conf filename.
+
+ASoC: rpi-simple-soundcard: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+ASoC: Add Kconfig and Makefile for sound/soc/bcm
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+
+ASoC: Create a generic Pi Hat WM8804 driver
+
+Reduce the amount of duplicated code by creating a generic driver for
+Pi Hat digi cards using the WM8804 codec.
+
+This replaces the
+Allo DigiOne, Hifiberry Digi/Pro, JustBoom Digi and IQAudIO Digi
+dedicate soundcard drivers with a generic driver.
+
+There are no significant changes to the runtime behavior of the drivers
+and end users should not have to change any configuration settings
+after upgrading.
+
+Minor changes
+* Check the return value of snd_soc_component_update_bits
+* Added some pr_debug tracing
+* Various checkpatch tidyups
+* Updated allodigi-one to use use 128FS at > 96 Khz. This appears to
+  be an omission in the original driver code so followed the Hifiberry
+  DAC driver approach.
+
+ASoC: rpi-wm8804-soundcard: use modern dai_link style
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+rpi-wm8804-soundcard: drop PWRDN register writes
+
+Since kernel 4.0 the PWRDN register bits are under DAPM
+control from the wm8804 driver.
+
+Drop code that modifies that register to avoid interfering
+with DAPM.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+rpi-wm8804-soundcard: configure wm8804 clocks only on rate change
+
+This should avoid clicks when stopping and immediately afterwards
+starting a stream with the same samplerate as before.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+rpi-wm8804-soundcard: Fixed MCLKDIV for Allo Digione
+
+The Allo Digione board wants a fixed MCLKDIV of 256.
+
+See: https://github.com/raspberrypi/linux/issues/3296
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+ASoC: Add support for AudioSense-Pi add-on soundcard
+
+AudioSense-Pi is a RPi HAT based on a TI's TLV320AIC32x4 stereo codec
+
+This hardware provides multiple audio I/O capabilities to the RPi.
+The codec connects to the RPi's SoC through the I2S Bus.
+
+The following devices can be connected through a 3.5mm jack
+	1. Line-In: Plain old audio in from mobile phones, PCs, etc.,
+	2. Mic-In: Connect a microphone
+	3. Line-Out: Connect the output to a speaker
+	4. Headphones: Connect a Headphone w or w/o microphones
+
+Multiple Inputs:
+	It supports the following combinations
+	1. Two stereo Line-Inputs and a microphone
+	2. One stereo Line-Input and two microphones
+	3. Two stereo Line-Inputs, a microphone and
+		one mono line-input (with h/w hack)
+	4. One stereo Line-Input, two microphones and
+		one mono line-input (with h/w hack)
+
+Multiple Outputs:
+	Audio output can be routed to the headphones or
+		speakers (with additional hardware)
+
+Signed-off-by: b-ak <anur.bhargav@gmail.com>
+
+ASoC: audiosense-pi: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Added driver for the HiFiBerry DAC+ ADC (#2694)
+
+Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
+
+hifiberry_dacplusadc: switch to snd_soc_dai_set_bclk_ratio
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplusadc: fix DAI link setup
+
+The driver only defines a single DAI link and the code that tries
+to setup the second (non-existent) DAI link looks wrong - using dmic
+as a CPU/platform driver doesn't make any sense.
+
+The DT overlay doesn't define a dmic property, so the code was never
+executed (otherwise it would have resulted in a memory corruption).
+
+So drop the offending code to prevent issues if a dmic property
+should be added to the DT overlay.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+ASoC: hifiberry_dacplusadc: use modern dai_link style
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+
+Audiophonics I-Sabre 9038Q2M DAC driver
+
+Signed-off-by: Audiophonics <contact@audiophonics.fr>
+
+ASoC: i-sabre-q2m: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+Added IQaudIO Pi-Codec board support (#2969)
+
+Add support for the IQaudIO Pi-Codec board.
+
+Signed-off-by: Gordon <gordon@iqaudio.com>
+
+Fixed 48k timing issue
+
+ASoC: iqaudio-codec: use modern dai_link style
+
+Signed-off-by: Hui Wang <hui.wang@canonical.com>
+
+adds the Hifiberry DAC+ADC PRO version
+
+This adds the driver for the DAC+ADC PRO version of the Hifiberry soundcard with software controlled PCM1863 ADC
+Signed-off-by: Joerg Schambacher joerg@i2audio.com
+
+Add Hifiberry DAC+DSP soundcard driver (#3224)
+
+Adds the driver for the Hifiberry DAC+DSP. It supports capture and
+playback depending on the DSP firmware.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+Allow simultaneous use of JustBoom DAC and Digi
+
+Signed-off-by: Johannes Krude <johannes@krude.de>
+
+Pisound: MIDI communication fixes for scaled down CPU.
+
+* Increased maximum SPI communication speed to avoid running too slow
+  when the CPU is scaled down and losing MIDI data.
+
+* Keep track of buffer usage in millibytes for higher precision.
+
+Signed-off-by: Giedrius Trainavičius <giedrius@blokas.io>
+
+sound: Add the HiFiBerry DAC+HD version
+
+This adds the driver for the DAC+HD version supporting HiFiBerry's
+PCM179x based DACs. It also adds PLL control for clock generation.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+Fix master mode settings of HiFiBerry DAC+ADC PRO card (#3424)
+
+This patch fixes the board DAI setting when in master-mode.
+Wrong setting could have caused random pop noise.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+adds LED OFF feature to HiFiBerry DAC+ADC PRO sound card
+
+This adds a DT overlay parameter 'leds_off' which allows
+to switch off the onboard activity LEDs at all times
+which has been requested by some users.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+adds LED OFF feature to HiFiBerry DAC+ADC sound card
+
+This adds a DT overlay parameter 'leds_off' which allows
+to switch off the onboard activity LEDs at all times
+which has been requested by some users.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+adds LED OFF feature to HiFiBerry DAC+/DAC+PRO sound cards
+
+This adds a DT overlay parameter 'leds_off' which allows
+to switch off the onboard activity LEDs at all times
+which has been requested by some users.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+pisound: Added reading Pisound board hardware revision and exposing it (#3425)
+
+pisound: Added reading Pisound board hardware revision and exposing it in kernel log and sysfs file:
+
+/sys/kernel/pisound/hw_version
+
+Signed-off-by: Giedrius <giedrius@blokas.io>
+
+Added driver for HiFiBerry Amp amplifier add-on board
+
+The driver contains a low-level hardware driver for the TAS5713 and the
+drivers for the Raspberry Pi I2S subsystem.
+
+TAS5713: return error if initialisation fails
+
+Existing TAS5713 driver logs errors during initialisation, but does not return
+an error code. Therefore even if initialisation fails, the driver will still be
+loaded, but won't work. This patch fixes this. I2C communication error will now
+reported correctly by a non-zero return code.
+
+HiFiBerry Amp: fix device-tree problems
+
+Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.
+
+According to 5713 pdf doc CLOCK_CTRL is a readonly status register, and it behaves so. Remove useless setting
+
+sound: pcm512x-codec: Adding 352.8kHz samplerate support
+
+sound/soc: only first codec is master in multicodec setup
+
+When using multiple codecs, at most one codec should generate the master
+clock. All codecs except the first are therefore configured for slave
+mode.
+
+Signed-off-by: Johannes Krude <johannes@krude.de>
+
+ASoC: Fix snd_soc_get_pcm_runtime usage
+
+Commit [1] changed the snd_soc_get_pcm_runtime to take a dai_link
+pointer instead of a string. Patch up the downstream drivers to use
+the modified API.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+
+[1] 4468189ff307 ("ASoC: soc-core: find rtd via dai_link pointer at snd_soc_get_pcm_runtime()")
+
+Add support for the AudioInjector.net Isolated sound card
+
+This patch adds support for the Audio Injector Isolated sound card.
+
+Signed-off-by: Matt Flax <flatmax@flatmax.org>
+
+Add support for merus-amp soundcard and ma120x0p codec
+
+Add 96KHz rate support to MA120X0P codec and make enable and mute gpio
+pins optional.
+
+Signed-off-by: AMuszkat <ariel.muszkat@gmail.com>
+
+Fixes a problem with clock settings of HiFiBerry DAC+ADC PRO (#3545)
+
+This patch fixes a problem of the re-calculation of
+i2s-clock and -parameter settings when only the ADC is activated.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+configs: Enable the AD193x codecs
+
+See: https://github.com/raspberrypi/linux/issues/2850
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+Switch to snd_soc_dai_set_bclk_ratio
+Replaces obsolete function snd_soc_dai_set_tdm_slot
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+
+Enhances the DAC+ driver to control the optional headphone amplifier
+
+Probes on the I2C bus for TPA6130A2, if successful, it sets DT-parameter
+'status' from 'disabled' to 'okay' using change_sets to enable
+the headphone control.
+
+Signed-off-by: Joerg Schambacher joerg@i2audio.com
+---
+ .../devicetree/bindings/vendor-prefixes.txt   |  463 ++++++
+ .../devicetree/bindings/vendor-prefixes.yaml  |    2 +
+ drivers/clk/Kconfig                           |    6 +
+ drivers/clk/Makefile                          |    3 +
+ drivers/clk/clk-allo-dac.c                    |  161 ++
+ drivers/clk/clk-hifiberry-dachd.c             |  333 ++++
+ drivers/clk/clk-hifiberry-dacpro.c            |  160 ++
+ sound/soc/bcm/Kconfig                         |  274 ++++
+ sound/soc/bcm/Makefile                        |   63 +-
+ sound/soc/bcm/allo-boss-dac.c                 |  456 ++++++
+ sound/soc/bcm/allo-katana-codec.c             |  388 +++++
+ sound/soc/bcm/allo-piano-dac-plus.c           |  987 ++++++++++++
+ sound/soc/bcm/allo-piano-dac.c                |  122 ++
+ .../bcm/audioinjector-isolated-soundcard.c    |  183 +++
+ sound/soc/bcm/audioinjector-octo-soundcard.c  |  346 +++++
+ sound/soc/bcm/audioinjector-pi-soundcard.c    |  187 +++
+ sound/soc/bcm/audiosense-pi.c                 |  248 +++
+ sound/soc/bcm/digidac1-soundcard.c            |  421 +++++
+ sound/soc/bcm/dionaudio_loco-v2.c             |  117 ++
+ sound/soc/bcm/dionaudio_loco.c                |  117 ++
+ sound/soc/bcm/fe-pi-audio.c                   |  154 ++
+ sound/soc/bcm/googlevoicehat-codec.c          |  214 +++
+ sound/soc/bcm/hifiberry_dacplus.c             |  424 +++++
+ sound/soc/bcm/hifiberry_dacplusadc.c          |  398 +++++
+ sound/soc/bcm/hifiberry_dacplusadcpro.c       |  543 +++++++
+ sound/soc/bcm/hifiberry_dacplusdsp.c          |   90 ++
+ sound/soc/bcm/hifiberry_dacplushd.c           |  238 +++
+ sound/soc/bcm/i-sabre-q2m.c                   |  158 ++
+ sound/soc/bcm/iqaudio-codec.c                 |  274 ++++
+ sound/soc/bcm/iqaudio-dac.c                   |  223 +++
+ sound/soc/bcm/justboom-both.c                 |  266 ++++
+ sound/soc/bcm/justboom-dac.c                  |  147 ++
+ sound/soc/bcm/pisound.c                       | 1238 +++++++++++++++
+ sound/soc/bcm/rpi-cirrus.c                    | 1025 ++++++++++++
+ sound/soc/bcm/rpi-proto.c                     |  147 ++
+ sound/soc/bcm/rpi-simple-soundcard.c          |  339 ++++
+ sound/soc/bcm/rpi-wm8804-soundcard.c          |  410 +++++
+ sound/soc/codecs/Kconfig                      |   28 +-
+ sound/soc/codecs/Makefile                     |    8 +
+ sound/soc/codecs/cs42xx8-i2c.c                |    9 +-
+ sound/soc/codecs/cs42xx8.c                    |    2 +
+ sound/soc/codecs/i-sabre-codec.c              |  392 +++++
+ sound/soc/codecs/i-sabre-codec.h              |   42 +
+ sound/soc/codecs/ma120x0p.c                   | 1384 +++++++++++++++++
+ sound/soc/codecs/pcm1794a.c                   |   69 +
+ sound/soc/codecs/pcm512x.c                    |    2 +-
+ sound/soc/codecs/tas5713.c                    |  363 +++++
+ sound/soc/codecs/tas5713.h                    |  210 +++
+ sound/soc/soc-core.c                          |   10 +-
+ 49 files changed, 13837 insertions(+), 7 deletions(-)
+ create mode 100644 Documentation/devicetree/bindings/vendor-prefixes.txt
+ create mode 100644 drivers/clk/clk-allo-dac.c
+ create mode 100644 drivers/clk/clk-hifiberry-dachd.c
+ create mode 100644 drivers/clk/clk-hifiberry-dacpro.c
+ create mode 100644 sound/soc/bcm/allo-boss-dac.c
+ create mode 100644 sound/soc/bcm/allo-katana-codec.c
+ create mode 100644 sound/soc/bcm/allo-piano-dac-plus.c
+ create mode 100644 sound/soc/bcm/allo-piano-dac.c
+ create mode 100644 sound/soc/bcm/audioinjector-isolated-soundcard.c
+ create mode 100644 sound/soc/bcm/audioinjector-octo-soundcard.c
+ create mode 100644 sound/soc/bcm/audioinjector-pi-soundcard.c
+ create mode 100644 sound/soc/bcm/audiosense-pi.c
+ create mode 100644 sound/soc/bcm/digidac1-soundcard.c
+ create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c
+ create mode 100644 sound/soc/bcm/dionaudio_loco.c
+ create mode 100644 sound/soc/bcm/fe-pi-audio.c
+ create mode 100644 sound/soc/bcm/googlevoicehat-codec.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplus.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplusadc.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplusadcpro.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplusdsp.c
+ create mode 100644 sound/soc/bcm/hifiberry_dacplushd.c
+ create mode 100644 sound/soc/bcm/i-sabre-q2m.c
+ create mode 100644 sound/soc/bcm/iqaudio-codec.c
+ create mode 100644 sound/soc/bcm/iqaudio-dac.c
+ create mode 100644 sound/soc/bcm/justboom-both.c
+ create mode 100644 sound/soc/bcm/justboom-dac.c
+ create mode 100644 sound/soc/bcm/pisound.c
+ create mode 100644 sound/soc/bcm/rpi-cirrus.c
+ create mode 100644 sound/soc/bcm/rpi-proto.c
+ create mode 100644 sound/soc/bcm/rpi-simple-soundcard.c
+ create mode 100644 sound/soc/bcm/rpi-wm8804-soundcard.c
+ create mode 100644 sound/soc/codecs/i-sabre-codec.c
+ create mode 100644 sound/soc/codecs/i-sabre-codec.h
+ create mode 100644 sound/soc/codecs/ma120x0p.c
+ create mode 100644 sound/soc/codecs/pcm1794a.c
+ create mode 100644 sound/soc/codecs/tas5713.c
+ create mode 100644 sound/soc/codecs/tas5713.h
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
+@@ -0,0 +1,463 @@
++Device tree binding vendor prefix registry.  Keep list in alphabetical order.
++
++This isn't an exhaustive list, but you should add new prefixes to it before
++using them to avoid name-space collisions.
++
++abilis	Abilis Systems
++abracon	Abracon Corporation
++actions	Actions Semiconductor Co., Ltd.
++active-semi	Active-Semi International Inc
++ad	Avionic Design GmbH
++adafruit	Adafruit Industries, LLC
++adapteva	Adapteva, Inc.
++adaptrum	Adaptrum, Inc.
++adh	AD Holdings Plc.
++adi	Analog Devices, Inc.
++advantech	Advantech Corporation
++aeroflexgaisler	Aeroflex Gaisler AB
++al	Annapurna Labs
++allo	Allo.com
++allwinner	Allwinner Technology Co., Ltd.
++alphascale	AlphaScale Integrated Circuits Systems, Inc.
++altr	Altera Corp.
++amarula	Amarula Solutions
++amazon	Amazon.com, Inc.
++amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
++amd	Advanced Micro Devices (AMD), Inc.
++amediatech	Shenzhen Amediatech Technology Co., Ltd
++amlogic	Amlogic, Inc.
++ampire	Ampire Co., Ltd.
++ams	AMS AG
++amstaos	AMS-Taos Inc.
++analogix	Analogix Semiconductor, Inc.
++andestech	Andes Technology Corporation
++apm	Applied Micro Circuits Corporation (APM)
++aptina	Aptina Imaging
++arasan	Arasan Chip Systems
++archermind ArcherMind Technology (Nanjing) Co., Ltd.
++arctic	Arctic Sand
++aries	Aries Embedded GmbH
++arm	ARM Ltd.
++armadeus	ARMadeus Systems SARL
++arrow	Arrow Electronics
++artesyn	Artesyn Embedded Technologies Inc.
++asahi-kasei	Asahi Kasei Corp.
++aspeed	ASPEED Technology Inc.
++asus	AsusTek Computer Inc.
++atlas	Atlas Scientific LLC
++atmel	Atmel Corporation
++auo	AU Optronics Corporation
++auvidea Auvidea GmbH
++avago	Avago Technologies
++avia	avia semiconductor
++avic	Shanghai AVIC Optoelectronics Co., Ltd.
++avnet	Avnet, Inc.
++axentia	Axentia Technologies AB
++axis	Axis Communications AB
++bananapi BIPAI KEJI LIMITED
++bhf	Beckhoff Automation GmbH & Co. KG
++bitmain	Bitmain Technologies
++blokaslabs	Vilniaus Blokas UAB
++boe	BOE Technology Group Co., Ltd.
++bosch	Bosch Sensortec GmbH
++boundary	Boundary Devices Inc.
++brcm	Broadcom Corporation
++buffalo	Buffalo, Inc.
++bticino Bticino International
++calxeda	Calxeda
++capella	Capella Microsystems, Inc
++cascoda	Cascoda, Ltd.
++catalyst	Catalyst Semiconductor, Inc.
++cavium	Cavium, Inc.
++cdns	Cadence Design Systems Inc.
++cdtech	CDTech(H.K.) Electronics Limited
++ceva	Ceva, Inc.
++chipidea	Chipidea, Inc
++chipone		ChipOne
++chipspark	ChipSPARK
++chrp	Common Hardware Reference Platform
++chunghwa	Chunghwa Picture Tubes Ltd.
++ciaa	Computadora Industrial Abierta Argentina
++cirrus	Cirrus Logic, Inc.
++cloudengines	Cloud Engines, Inc.
++cnm	Chips&Media, Inc.
++cnxt	Conexant Systems, Inc.
++compulab	CompuLab Ltd.
++cortina	Cortina Systems, Inc.
++cosmic	Cosmic Circuits
++crane	Crane Connectivity Solutions
++creative	Creative Technology Ltd
++crystalfontz	Crystalfontz America, Inc.
++csky	Hangzhou C-SKY Microsystems Co., Ltd
++cubietech	Cubietech, Ltd.
++cypress	Cypress Semiconductor Corporation
++cznic	CZ.NIC, z.s.p.o.
++dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
++dataimage	DataImage, Inc.
++davicom	DAVICOM Semiconductor, Inc.
++delta	Delta Electronics, Inc.
++denx	Denx Software Engineering
++devantech	Devantech, Ltd.
++dh	DH electronics GmbH
++digi	Digi International Inc.
++digilent	Diglent, Inc.
++dioo	Dioo Microcircuit Co., Ltd
++dlc	DLC Display Co., Ltd.
++dlg	Dialog Semiconductor
++dlink	D-Link Corporation
++dmo	Data Modul AG
++domintech	Domintech Co., Ltd.
++dongwoon	Dongwoon Anatech
++dptechnics	DPTechnics
++dragino	Dragino Technology Co., Limited
++ea	Embedded Artists AB
++ebs-systart EBS-SYSTART GmbH
++ebv	EBV Elektronik
++eckelmann	Eckelmann AG
++edt	Emerging Display Technologies
++eeti	eGalax_eMPIA Technology Inc
++elan	Elan Microelectronic Corp.
++elgin	Elgin S/A.
++embest	Shenzhen Embest Technology Co., Ltd.
++emlid	Emlid, Ltd.
++emmicro	EM Microelectronic
++emtrion	emtrion GmbH
++endless	Endless Mobile, Inc.
++energymicro	Silicon Laboratories (formerly Energy Micro AS)
++engicam	Engicam S.r.l.
++epcos	EPCOS AG
++epfl	Ecole Polytechnique Fédérale de Lausanne
++epson	Seiko Epson Corp.
++est	ESTeem Wireless Modems
++ettus	NI Ettus Research
++eukrea  Eukréa Electromatique
++everest	Everest Semiconductor Co. Ltd.
++everspin	Everspin Technologies, Inc.
++exar	Exar Corporation
++excito	Excito
++ezchip	EZchip Semiconductor
++facebook	Facebook
++fairphone	Fairphone B.V.
++faraday	Faraday Technology Corporation
++fastrax	Fastrax Oy
++fcs	Fairchild Semiconductor
++feiyang	Shenzhen Fly Young Technology Co.,LTD.
++firefly	Firefly
++focaltech	FocalTech Systems Co.,Ltd
++friendlyarm	Guangzhou FriendlyARM Computer Tech Co., Ltd
++fsl	Freescale Semiconductor
++fujitsu	Fujitsu Ltd.
++gateworks	Gateworks Corporation
++gcw Game Consoles Worldwide
++ge	General Electric Company
++geekbuying	GeekBuying
++gef	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
++GEFanuc	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
++geniatech	Geniatech, Inc.
++giantec	Giantec Semiconductor, Inc.
++giantplus	Giantplus Technology Co., Ltd.
++globalscale	Globalscale Technologies, Inc.
++globaltop	GlobalTop Technology, Inc.
++gmt	Global Mixed-mode Technology, Inc.
++goodix	Shenzhen Huiding Technology Co., Ltd.
++google	Google, Inc.
++grinn	Grinn
++grmn	Garmin Limited
++gumstix	Gumstix, Inc.
++gw	Gateworks Corporation
++hannstar	HannStar Display Corporation
++haoyu	Haoyu Microelectronic Co. Ltd.
++hardkernel	Hardkernel Co., Ltd
++hideep	HiDeep Inc.
++himax	Himax Technologies, Inc.
++hisilicon	Hisilicon Limited.
++hit	Hitachi Ltd.
++hitex	Hitex Development Tools
++holt	Holt Integrated Circuits, Inc.
++honeywell	Honeywell
++hp	Hewlett Packard
++holtek	Holtek Semiconductor, Inc.
++hwacom	HwaCom Systems Inc.
++i2se	I2SE GmbH
++ibm	International Business Machines (IBM)
++icplus	IC Plus Corp.
++idt	Integrated Device Technologies, Inc.
++ifi	Ingenieurburo Fur Ic-Technologie (I/F/I)
++ilitek	ILI Technology Corporation (ILITEK)
++img	Imagination Technologies Ltd.
++infineon Infineon Technologies
++inforce	Inforce Computing
++ingenic	Ingenic Semiconductor
++innolux	Innolux Corporation
++inside-secure	INSIDE Secure
++intel	Intel Corporation
++intercontrol	Inter Control Group
++invensense	InvenSense Inc.
++inversepath	Inverse Path
++iom	Iomega Corporation
++isee	ISEE 2007 S.L.
++isil	Intersil
++issi	Integrated Silicon Solutions Inc.
++itead	ITEAD Intelligent Systems Co.Ltd
++iwave  iWave Systems Technologies Pvt. Ltd.
++jdi	Japan Display Inc.
++jedec	JEDEC Solid State Technology Association
++jianda	Jiandangjing Technology Co., Ltd.
++karo	Ka-Ro electronics GmbH
++keithkoep	Keith & Koep GmbH
++keymile	Keymile GmbH
++khadas	Khadas
++kiebackpeter    Kieback & Peter GmbH
++kinetic Kinetic Technologies
++kingdisplay	King & Display Technology Co., Ltd.
++kingnovel	Kingnovel Technology Co., Ltd.
++koe	Kaohsiung Opto-Electronics Inc.
++kosagi	Sutajio Ko-Usagi PTE Ltd.
++kyo	Kyocera Corporation
++lacie	LaCie
++laird	Laird PLC
++lantiq	Lantiq Semiconductor
++lattice	Lattice Semiconductor
++lego	LEGO Systems A/S
++lemaker	Shenzhen LeMaker Technology Co., Ltd.
++lenovo	Lenovo Group Ltd.
++lg	LG Corporation
++libretech	Shenzhen Libre Technology Co., Ltd
++licheepi	Lichee Pi
++linaro	Linaro Limited
++linksys	Belkin International, Inc. (Linksys)
++linux	Linux-specific binding
++linx	Linx Technologies
++lltc	Linear Technology Corporation
++logicpd	Logic PD, Inc.
++lsi	LSI Corp. (LSI Logic)
++lwn	Liebherr-Werk Nenzing GmbH
++macnica	Macnica Americas
++marvell	Marvell Technology Group Ltd.
++maxim	Maxim Integrated Products
++mbvl	Mobiveil Inc.
++mcube	mCube
++meas	Measurement Specialties
++mediatek	MediaTek Inc.
++megachips	MegaChips
++mele	Shenzhen MeLE Digital Technology Ltd.
++melexis	Melexis N.V.
++melfas	MELFAS Inc.
++mellanox	Mellanox Technologies
++memsic	MEMSIC Inc.
++merrii	Merrii Technology Co., Ltd.
++micrel	Micrel Inc.
++microchip	Microchip Technology Inc.
++microcrystal	Micro Crystal AG
++micron	Micron Technology Inc.
++mikroe		MikroElektronika d.o.o.
++minix	MINIX Technology Ltd.
++miramems	MiraMEMS Sensing Technology Co., Ltd.
++mitsubishi	Mitsubishi Electric Corporation
++mosaixtech	Mosaix Technologies, Inc.
++motorola	Motorola, Inc.
++moxa	Moxa Inc.
++mpl	MPL AG
++mqmaker	mqmaker Inc.
++mscc	Microsemi Corporation
++msi	Micro-Star International Co. Ltd.
++mti	Imagination Technologies Ltd. (formerly MIPS Technologies Inc.)
++multi-inno	Multi-Inno Technology Co.,Ltd
++mundoreader	Mundo Reader S.L.
++murata	Murata Manufacturing Co., Ltd.
++mxicy	Macronix International Co., Ltd.
++myir	MYIR Tech Limited
++national	National Semiconductor
++nec	NEC LCD Technologies, Ltd.
++neonode		Neonode Inc.
++netgear	NETGEAR
++netlogic	Broadcom Corporation (formerly NetLogic Microsystems)
++netron-dy	Netron DY
++netxeon		Shenzhen Netxeon Technology CO., LTD
++nexbox	Nexbox
++nextthing	Next Thing Co.
++newhaven	Newhaven Display International
++ni	National Instruments
++nintendo	Nintendo
++nlt	NLT Technologies, Ltd.
++nokia	Nokia
++nordic	Nordic Semiconductor
++novtech NovTech, Inc.
++nutsboard	NutsBoard
++nuvoton	Nuvoton Technology Corporation
++nvd	New Vision Display
++nvidia	NVIDIA
++nxp	NXP Semiconductors
++okaya	Okaya Electric America, Inc.
++oki	Oki Electric Industry Co., Ltd.
++olimex	OLIMEX Ltd.
++olpc	One Laptop Per Child
++onion	Onion Corporation
++onnn	ON Semiconductor Corp.
++ontat	On Tat Industrial Company
++opalkelly	Opal Kelly Incorporated
++opencores	OpenCores.org
++openrisc	OpenRISC.io
++option	Option NV
++oranth	Shenzhen Oranth Technology Co., Ltd.
++ORCL	Oracle Corporation
++orisetech	Orise Technology
++ortustech	Ortus Technology Co., Ltd.
++ovti	OmniVision Technologies
++oxsemi	Oxford Semiconductor, Ltd.
++panasonic	Panasonic Corporation
++parade	Parade Technologies Inc.
++pda	Precision Design Associates, Inc.
++pericom	Pericom Technology Inc.
++pervasive	Pervasive Displays, Inc.
++phicomm PHICOMM Co., Ltd.
++phytec	PHYTEC Messtechnik GmbH
++picochip	Picochip Ltd
++pine64	Pine64
++pixcir  PIXCIR MICROELECTRONICS Co., Ltd
++plantower Plantower Co., Ltd
++plathome	Plat'Home Co., Ltd.
++plda	PLDA
++plx	Broadcom Corporation (formerly PLX Technology)
++pni	PNI Sensor Corporation
++portwell	Portwell Inc.
++poslab	Poslab Technology Co., Ltd.
++powervr	PowerVR (deprecated, use img)
++probox2	PROBOX2 (by W2COMP Co., Ltd.)
++pulsedlight	PulsedLight, Inc
++qca	Qualcomm Atheros, Inc.
++qcom	Qualcomm Technologies, Inc
++qemu	QEMU, a generic and open source machine emulator and virtualizer
++qi	Qi Hardware
++qiaodian	QiaoDian XianShi Corporation
++qnap	QNAP Systems, Inc.
++radxa	Radxa
++raidsonic	RaidSonic Technology GmbH
++ralink	Mediatek/Ralink Technology Corp.
++ramtron	Ramtron International
++raspberrypi	Raspberry Pi Foundation
++raydium	Raydium Semiconductor Corp.
++rda	Unisoc Communications, Inc.
++realtek Realtek Semiconductor Corp.
++renesas	Renesas Electronics Corporation
++richtek	Richtek Technology Corporation
++ricoh	Ricoh Co. Ltd.
++rikomagic	Rikomagic Tech Corp. Ltd
++riscv	RISC-V Foundation
++rockchip	Fuzhou Rockchip Electronics Co., Ltd
++rohm	ROHM Semiconductor Co., Ltd
++roofull	Shenzhen Roofull Technology Co, Ltd
++samsung	Samsung Semiconductor
++samtec	Samtec/Softing company
++sancloud	Sancloud Ltd
++sandisk	Sandisk Corporation
++sbs	Smart Battery System
++schindler	Schindler
++seagate	Seagate Technology PLC
++semtech	Semtech Corporation
++sensirion	Sensirion AG
++sff	Small Form Factor Committee
++sgd	Solomon Goldentek Display Corporation
++sgx	SGX Sensortech
++sharp	Sharp Corporation
++shimafuji	Shimafuji Electric, Inc.
++si-en	Si-En Technology Ltd.
++sifive	SiFive, Inc.
++sigma	Sigma Designs, Inc.
++sii	Seiko Instruments, Inc.
++sil	Silicon Image
++silabs	Silicon Laboratories
++silead	Silead Inc.
++silergy	Silergy Corp.
++siliconmitus	Silicon Mitus, Inc.
++simtek
++sirf	SiRF Technology, Inc.
++sis	Silicon Integrated Systems Corp.
++sitronix	Sitronix Technology Corporation
++skyworks	Skyworks Solutions, Inc.
++smsc	Standard Microsystems Corporation
++snps	Synopsys, Inc.
++socionext	Socionext Inc.
++solidrun	SolidRun
++solomon        Solomon Systech Limited
++sony	Sony Corporation
++spansion	Spansion Inc.
++sprd	Spreadtrum Communications Inc.
++sst	Silicon Storage Technology, Inc.
++st	STMicroelectronics
++starry	Starry Electronic Technology (ShenZhen) Co., LTD
++startek	Startek
++ste	ST-Ericsson
++stericsson	ST-Ericsson
++summit	Summit microelectronics
++sunchip	Shenzhen Sunchip Technology Co., Ltd
++SUNW	Sun Microsystems, Inc
++swir	Sierra Wireless
++syna	Synaptics Inc.
++synology	Synology, Inc.
++tbs	TBS Technologies
++tbs-biometrics	Touchless Biometric Systems AG
++tcg	Trusted Computing Group
++tcl	Toby Churchill Ltd.
++technexion	TechNexion
++technologic	Technologic Systems
++tempo	Tempo Semiconductor
++techstar	Shenzhen Techstar Electronics Co., Ltd.
++terasic	Terasic Inc.
++thine	THine Electronics, Inc.
++ti	Texas Instruments
++tianma	Tianma Micro-electronics Co., Ltd.
++tlm	Trusted Logic Mobility
++tmt	Tecon Microprocessor Technologies, LLC.
++topeet  Topeet
++toradex	Toradex AG
++toshiba	Toshiba Corporation
++toumaz	Toumaz
++tpk	TPK U.S.A. LLC
++tplink	TP-LINK Technologies Co., Ltd.
++tpo	TPO
++tronfy	Tronfy
++tronsmart	Tronsmart
++truly	Truly Semiconductors Limited
++tsd	Theobroma Systems Design und Consulting GmbH
++tyan	Tyan Computer Corporation
++u-blox	u-blox
++ucrobotics	uCRobotics
++ubnt	Ubiquiti Networks
++udoo	Udoo
++uniwest	United Western Technologies Corp (UniWest)
++upisemi	uPI Semiconductor Corp.
++urt	United Radiant Technology Corporation
++usi	Universal Scientific Industrial Co., Ltd.
++v3	V3 Semiconductor
++vamrs	Vamrs Ltd.
++variscite	Variscite Ltd.
++via	VIA Technologies, Inc.
++virtio	Virtual I/O Device Specification, developed by the OASIS consortium
++vishay	Vishay Intertechnology, Inc
++vitesse	Vitesse Semiconductor Corporation
++vivante	Vivante Corporation
++vocore VoCore Studio
++voipac	Voipac Technologies s.r.o.
++vot	Vision Optical Technology Co., Ltd.
++wd	Western Digital Corp.
++wetek	WeTek Electronics, limited.
++wexler	Wexler
++whwave  Shenzhen whwave Electronics, Inc.
++wi2wi	Wi2Wi, Inc.
++winbond Winbond Electronics corp.
++winstar	Winstar Display Corp.
++wlf	Wolfson Microelectronics
++wm	Wondermedia Technologies, Inc.
++x-powers	X-Powers
++xes	Extreme Engineering Solutions (X-ES)
++xillybus	Xillybus Ltd.
++xlnx	Xilinx
++xunlong	Shenzhen Xunlong Software CO.,Limited
++ysoft	Y Soft Corporation a.s.
++zarlink	Zarlink Semiconductor
++zeitec	ZEITEC Semiconductor Co., LTD.
++zidoo	Shenzhen Zidoo Technology Co., Ltd.
++zii	Zodiac Inflight Innovations
++zte	ZTE Corp.
++zyxel	ZyXEL Communications Corp.
+--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
++++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
+@@ -159,6 +159,8 @@ patternProperties:
+     description: Beckhoff Automation GmbH & Co. KG
+   "^bitmain,.*":
+     description: Bitmain Technologies
++  "^blokaslabs,.*":
++    description: Vilniaus Blokas UAB
+   "^boe,.*":
+     description: BOE Technology Group Co., Ltd.
+   "^bosch,.*":
+--- a/drivers/clk/Kconfig
++++ b/drivers/clk/Kconfig
+@@ -86,6 +86,12 @@ config COMMON_CLK_HI655X
+ 	  multi-function device has one fixed-rate oscillator, clocked
+ 	  at 32KHz.
+ 
++config COMMON_CLK_HIFIBERRY_DACPLUSHD
++	tristate
++
++config COMMON_CLK_HIFIBERRY_DACPRO
++	tristate
++
+ config COMMON_CLK_SCMI
+ 	tristate "Clock driver controlled via SCMI interface"
+ 	depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
+--- a/drivers/clk/Makefile
++++ b/drivers/clk/Makefile
+@@ -18,6 +18,7 @@ endif
+ 
+ # hardware specific clock types
+ # please keep this section sorted lexicographically by file path name
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC)	+= clk-allo-dac.o
+ obj-$(CONFIG_MACH_ASM9260)		+= clk-asm9260.o
+ obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)	+= clk-axi-clkgen.o
+ obj-$(CONFIG_ARCH_AXXIA)		+= clk-axm5516.o
+@@ -37,6 +38,8 @@ obj-$(CONFIG_MACH_ASPEED_G6)		+= clk-ast
+ obj-$(CONFIG_ARCH_HIGHBANK)		+= clk-highbank.o
+ obj-$(CONFIG_CLK_HSDK)			+= clk-hsdk-pll.o
+ obj-$(CONFIG_COMMON_CLK_LOCHNAGAR)	+= clk-lochnagar.o
++obj-$(CONFIG_COMMON_CLK_HIFIBERRY_DACPRO)	+= clk-hifiberry-dacpro.o
++obj-$(CONFIG_COMMON_CLK_HIFIBERRY_DACPLUSHD)	+= clk-hifiberry-dachd.o
+ obj-$(CONFIG_COMMON_CLK_MAX77686)	+= clk-max77686.o
+ obj-$(CONFIG_COMMON_CLK_MAX9485)	+= clk-max9485.o
+ obj-$(CONFIG_ARCH_MILBEAUT_M10V)	+= clk-milbeaut.o
+--- /dev/null
++++ b/drivers/clk/clk-allo-dac.c
+@@ -0,0 +1,161 @@
++/*
++ * Clock Driver for Allo DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2016
++ *		based on code by Stuart MacLean
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/clk-provider.h>
++#include <linux/clkdev.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 45158400UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 49152000UL
++
++/**
++ * struct allo_dac_clk - Common struct to the Allo DAC
++ * @hw: clk_hw for the common clk framework
++ * @mode: 0 => CLK44EN, 1 => CLK48EN
++ */
++struct clk_allo_hw {
++	struct clk_hw hw;
++	uint8_t mode;
++};
++
++#define to_allo_clk(_hw) container_of(_hw, struct clk_allo_hw, hw)
++
++static const struct of_device_id clk_allo_dac_dt_ids[] = {
++	{ .compatible = "allo,dac-clk",},
++	{ }
++};
++MODULE_DEVICE_TABLE(of, clk_allo_dac_dt_ids);
++
++static unsigned long clk_allo_dac_recalc_rate(struct clk_hw *hw,
++	unsigned long parent_rate)
++{
++	return (to_allo_clk(hw)->mode == 0) ? CLK_44EN_RATE :
++		CLK_48EN_RATE;
++}
++
++static long clk_allo_dac_round_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long *parent_rate)
++{
++	long actual_rate;
++
++	if (rate <= CLK_44EN_RATE) {
++		actual_rate = (long)CLK_44EN_RATE;
++	} else if (rate >= CLK_48EN_RATE) {
++		actual_rate = (long)CLK_48EN_RATE;
++	} else {
++		long diff44Rate = (long)(rate - CLK_44EN_RATE);
++		long diff48Rate = (long)(CLK_48EN_RATE - rate);
++
++		if (diff44Rate < diff48Rate)
++			actual_rate = (long)CLK_44EN_RATE;
++		else
++			actual_rate = (long)CLK_48EN_RATE;
++	}
++	return actual_rate;
++}
++
++
++static int clk_allo_dac_set_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long parent_rate)
++{
++	unsigned long actual_rate;
++	struct clk_allo_hw *clk = to_allo_clk(hw);
++
++	actual_rate = (unsigned long)clk_allo_dac_round_rate(hw, rate,
++		&parent_rate);
++	clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
++	return 0;
++}
++
++
++const struct clk_ops clk_allo_dac_rate_ops = {
++	.recalc_rate = clk_allo_dac_recalc_rate,
++	.round_rate = clk_allo_dac_round_rate,
++	.set_rate = clk_allo_dac_set_rate,
++};
++
++static int clk_allo_dac_probe(struct platform_device *pdev)
++{
++	int ret;
++	struct clk_allo_hw *proclk;
++	struct clk *clk;
++	struct device *dev;
++	struct clk_init_data init;
++
++	dev = &pdev->dev;
++
++	proclk = kzalloc(sizeof(struct clk_allo_hw), GFP_KERNEL);
++	if (!proclk)
++		return -ENOMEM;
++
++	init.name = "clk-allo-dac";
++	init.ops = &clk_allo_dac_rate_ops;
++	init.flags = 0;
++	init.parent_names = NULL;
++	init.num_parents = 0;
++
++	proclk->mode = 0;
++	proclk->hw.init = &init;
++
++	clk = devm_clk_register(dev, &proclk->hw);
++	if (!IS_ERR(clk)) {
++		ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
++			clk);
++	} else {
++		dev_err(dev, "Fail to register clock driver\n");
++		kfree(proclk);
++		ret = PTR_ERR(clk);
++	}
++	return ret;
++}
++
++static int clk_allo_dac_remove(struct platform_device *pdev)
++{
++	of_clk_del_provider(pdev->dev.of_node);
++	return 0;
++}
++
++static struct platform_driver clk_allo_dac_driver = {
++	.probe = clk_allo_dac_probe,
++	.remove = clk_allo_dac_remove,
++	.driver = {
++		.name = "clk-allo-dac",
++		.of_match_table = clk_allo_dac_dt_ids,
++	},
++};
++
++static int __init clk_allo_dac_init(void)
++{
++	return platform_driver_register(&clk_allo_dac_driver);
++}
++core_initcall(clk_allo_dac_init);
++
++static void __exit clk_allo_dac_exit(void)
++{
++	platform_driver_unregister(&clk_allo_dac_driver);
++}
++module_exit(clk_allo_dac_exit);
++
++MODULE_DESCRIPTION("Allo DAC clock driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:clk-allo-dac");
+--- /dev/null
++++ b/drivers/clk/clk-hifiberry-dachd.c
+@@ -0,0 +1,333 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Clock Driver for HiFiBerry DAC+ HD
++ *
++ * Author: Joerg Schambacher, i2Audio GmbH for HiFiBerry
++ *         Copyright 2020
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/clk-provider.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++#include <linux/i2c.h>
++#include <linux/regmap.h>
++
++#define NO_PLL_RESET			0
++#define PLL_RESET			1
++#define HIFIBERRY_PLL_MAX_REGISTER	256
++#define DEFAULT_RATE			44100
++
++static struct reg_default hifiberry_pll_reg_defaults[] = {
++	{0x02, 0x53}, {0x03, 0x00}, {0x07, 0x20}, {0x0F, 0x00},
++	{0x10, 0x0D}, {0x11, 0x1D}, {0x12, 0x0D}, {0x13, 0x8C},
++	{0x14, 0x8C}, {0x15, 0x8C}, {0x16, 0x8C}, {0x17, 0x8C},
++	{0x18, 0x2A}, {0x1C, 0x00}, {0x1D, 0x0F}, {0x1F, 0x00},
++	{0x2A, 0x00}, {0x2C, 0x00}, {0x2F, 0x00}, {0x30, 0x00},
++	{0x31, 0x00}, {0x32, 0x00}, {0x34, 0x00}, {0x37, 0x00},
++	{0x38, 0x00}, {0x39, 0x00}, {0x3A, 0x00}, {0x3B, 0x01},
++	{0x3E, 0x00}, {0x3F, 0x00}, {0x40, 0x00}, {0x41, 0x00},
++	{0x5A, 0x00}, {0x5B, 0x00}, {0x95, 0x00}, {0x96, 0x00},
++	{0x97, 0x00}, {0x98, 0x00}, {0x99, 0x00}, {0x9A, 0x00},
++	{0x9B, 0x00}, {0xA2, 0x00}, {0xA3, 0x00}, {0xA4, 0x00},
++	{0xB7, 0x92},
++	{0x1A, 0x3D}, {0x1B, 0x09}, {0x1E, 0xF3}, {0x20, 0x13},
++	{0x21, 0x75}, {0x2B, 0x04}, {0x2D, 0x11}, {0x2E, 0xE0},
++	{0x3D, 0x7A},
++	{0x35, 0x9D}, {0x36, 0x00}, {0x3C, 0x42},
++	{ 177, 0xAC},
++};
++static struct reg_default common_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_common_pll_regs;
++static struct reg_default dedicated_192k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_192k_pll_regs;
++static struct reg_default dedicated_96k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_96k_pll_regs;
++static struct reg_default dedicated_48k_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_48k_pll_regs;
++static struct reg_default dedicated_176k4_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_176k4_pll_regs;
++static struct reg_default dedicated_88k2_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_88k2_pll_regs;
++static struct reg_default dedicated_44k1_pll_regs[HIFIBERRY_PLL_MAX_REGISTER];
++static int num_dedicated_44k1_pll_regs;
++
++/**
++ * struct clk_hifiberry_drvdata - Common struct to the HiFiBerry DAC HD Clk
++ * @hw: clk_hw for the common clk framework
++ */
++struct clk_hifiberry_drvdata {
++	struct regmap *regmap;
++	struct clk *clk;
++	struct clk_hw hw;
++	unsigned long rate;
++};
++
++#define to_hifiberry_clk(_hw) \
++	container_of(_hw, struct clk_hifiberry_drvdata, hw)
++
++static int clk_hifiberry_dachd_write_pll_regs(struct regmap *regmap,
++				struct reg_default *regs,
++				int num, int do_pll_reset)
++{
++	int i;
++	int ret = 0;
++	char pll_soft_reset[] = { 177, 0xAC, };
++
++	for (i = 0; i < num; i++) {
++		ret |= regmap_write(regmap, regs[i].reg, regs[i].def);
++		if (ret)
++			return ret;
++	}
++	if (do_pll_reset) {
++		ret |= regmap_write(regmap, pll_soft_reset[0],
++						pll_soft_reset[1]);
++		mdelay(10);
++	}
++	return ret;
++}
++
++static unsigned long clk_hifiberry_dachd_recalc_rate(struct clk_hw *hw,
++	unsigned long parent_rate)
++{
++	return to_hifiberry_clk(hw)->rate;
++}
++
++static long clk_hifiberry_dachd_round_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long *parent_rate)
++{
++	return rate;
++}
++
++static int clk_hifiberry_dachd_set_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long parent_rate)
++{
++	int ret;
++	struct clk_hifiberry_drvdata *drvdata = to_hifiberry_clk(hw);
++
++	switch (rate) {
++	case 44100:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_44k1_pll_regs, num_dedicated_44k1_pll_regs,
++			PLL_RESET);
++		break;
++	case 88200:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_88k2_pll_regs, num_dedicated_88k2_pll_regs,
++			PLL_RESET);
++		break;
++	case 176400:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_176k4_pll_regs, num_dedicated_176k4_pll_regs,
++			PLL_RESET);
++		break;
++	case 48000:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_48k_pll_regs,	num_dedicated_48k_pll_regs,
++			PLL_RESET);
++		break;
++	case 96000:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_96k_pll_regs,	num_dedicated_96k_pll_regs,
++			PLL_RESET);
++		break;
++	case 192000:
++		ret = clk_hifiberry_dachd_write_pll_regs(drvdata->regmap,
++			dedicated_192k_pll_regs, num_dedicated_192k_pll_regs,
++			PLL_RESET);
++		break;
++	default:
++		ret = -EINVAL;
++		break;
++	}
++	to_hifiberry_clk(hw)->rate = rate;
++
++	return ret;
++}
++
++const struct clk_ops clk_hifiberry_dachd_rate_ops = {
++	.recalc_rate = clk_hifiberry_dachd_recalc_rate,
++	.round_rate = clk_hifiberry_dachd_round_rate,
++	.set_rate = clk_hifiberry_dachd_set_rate,
++};
++
++static int clk_hifiberry_get_prop_values(struct device *dev,
++					char *prop_name,
++					struct reg_default *regs)
++{
++	int ret;
++	int i;
++	u8 tmp[2 * HIFIBERRY_PLL_MAX_REGISTER];
++
++	ret = of_property_read_variable_u8_array(dev->of_node, prop_name,
++			tmp, 0, 2 * HIFIBERRY_PLL_MAX_REGISTER);
++	if (ret < 0)
++		return ret;
++	if (ret & 1) {
++		dev_err(dev,
++			"%s <%s> -> #%i odd number of bytes for reg/val pairs!",
++			__func__,
++			prop_name,
++			ret);
++		return -EINVAL;
++	}
++	ret /= 2;
++	for (i = 0; i < ret; i++) {
++		regs[i].reg = (u32)tmp[2 * i];
++		regs[i].def = (u32)tmp[2 * i + 1];
++	}
++	return ret;
++}
++
++
++static int clk_hifiberry_dachd_dt_parse(struct device *dev)
++{
++	num_common_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"common_pll_regs", common_pll_regs);
++	num_dedicated_44k1_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"44k1_pll_regs", dedicated_44k1_pll_regs);
++	num_dedicated_88k2_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"88k2_pll_regs", dedicated_88k2_pll_regs);
++	num_dedicated_176k4_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"176k4_pll_regs", dedicated_176k4_pll_regs);
++	num_dedicated_48k_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"48k_pll_regs", dedicated_48k_pll_regs);
++	num_dedicated_96k_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"96k_pll_regs", dedicated_96k_pll_regs);
++	num_dedicated_192k_pll_regs = clk_hifiberry_get_prop_values(dev,
++				"192k_pll_regs", dedicated_192k_pll_regs);
++	return 0;
++}
++
++
++static int clk_hifiberry_dachd_remove(struct device *dev)
++{
++	of_clk_del_provider(dev->of_node);
++	return 0;
++}
++
++const struct regmap_config hifiberry_pll_regmap = {
++	.reg_bits = 8,
++	.val_bits = 8,
++	.max_register = HIFIBERRY_PLL_MAX_REGISTER,
++	.reg_defaults = hifiberry_pll_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(hifiberry_pll_reg_defaults),
++	.cache_type = REGCACHE_RBTREE,
++};
++EXPORT_SYMBOL_GPL(hifiberry_pll_regmap);
++
++
++static int clk_hifiberry_dachd_i2c_probe(struct i2c_client *i2c,
++			     const struct i2c_device_id *id)
++{
++	struct clk_hifiberry_drvdata *hdclk;
++	int ret = 0;
++	struct clk_init_data init;
++	struct device *dev = &i2c->dev;
++	struct device_node *dev_node = dev->of_node;
++	struct regmap_config config = hifiberry_pll_regmap;
++
++	hdclk = devm_kzalloc(&i2c->dev,
++			sizeof(struct clk_hifiberry_drvdata), GFP_KERNEL);
++	if (!hdclk)
++		return -ENOMEM;
++
++	i2c_set_clientdata(i2c, hdclk);
++
++	hdclk->regmap = devm_regmap_init_i2c(i2c, &config);
++
++	if (IS_ERR(hdclk->regmap))
++		return PTR_ERR(hdclk->regmap);
++
++	/* start PLL to allow detection of DAC */
++	ret = clk_hifiberry_dachd_write_pll_regs(hdclk->regmap,
++				hifiberry_pll_reg_defaults,
++				ARRAY_SIZE(hifiberry_pll_reg_defaults),
++				PLL_RESET);
++	if (ret)
++		return ret;
++
++	clk_hifiberry_dachd_dt_parse(dev);
++
++	/* restart PLL with configs from DTB */
++	ret = clk_hifiberry_dachd_write_pll_regs(hdclk->regmap, common_pll_regs,
++					num_common_pll_regs, PLL_RESET);
++	if (ret)
++		return ret;
++
++	init.name = "clk-hifiberry-dachd";
++	init.ops = &clk_hifiberry_dachd_rate_ops;
++	init.flags = 0;
++	init.parent_names = NULL;
++	init.num_parents = 0;
++
++	hdclk->hw.init = &init;
++
++	hdclk->clk = devm_clk_register(dev, &hdclk->hw);
++	if (IS_ERR(hdclk->clk)) {
++		dev_err(dev, "unable to register %s\n",	init.name);
++		return PTR_ERR(hdclk->clk);
++	}
++
++	ret = of_clk_add_provider(dev_node, of_clk_src_simple_get, hdclk->clk);
++	if (ret != 0) {
++		dev_err(dev, "Cannot of_clk_add_provider");
++		return ret;
++	}
++
++	ret = clk_set_rate(hdclk->hw.clk, DEFAULT_RATE);
++	if (ret != 0) {
++		dev_err(dev, "Cannot set rate : %d\n",	ret);
++		return -EINVAL;
++	}
++
++	return ret;
++}
++
++static int clk_hifiberry_dachd_i2c_remove(struct i2c_client *i2c)
++{
++	clk_hifiberry_dachd_remove(&i2c->dev);
++	return 0;
++}
++
++static const struct i2c_device_id clk_hifiberry_dachd_i2c_id[] = {
++	{ "dachd-clk", },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, clk_hifiberry_dachd_i2c_id);
++
++static const struct of_device_id clk_hifiberry_dachd_of_match[] = {
++	{ .compatible = "hifiberry,dachd-clk", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, clk_hifiberry_dachd_of_match);
++
++static struct i2c_driver clk_hifiberry_dachd_i2c_driver = {
++	.probe		= clk_hifiberry_dachd_i2c_probe,
++	.remove		= clk_hifiberry_dachd_i2c_remove,
++	.id_table	= clk_hifiberry_dachd_i2c_id,
++	.driver		= {
++		.name	= "dachd-clk",
++		.of_match_table = of_match_ptr(clk_hifiberry_dachd_of_match),
++	},
++};
++
++module_i2c_driver(clk_hifiberry_dachd_i2c_driver);
++
++
++MODULE_DESCRIPTION("HiFiBerry DAC+ HD clock driver");
++MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:clk-hifiberry-dachd");
+--- /dev/null
++++ b/drivers/clk/clk-hifiberry-dacpro.c
+@@ -0,0 +1,160 @@
++/*
++ * Clock Driver for HiFiBerry DAC Pro
++ *
++ * Author: Stuart MacLean
++ *         Copyright 2015
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/clk-provider.h>
++#include <linux/clkdev.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++/**
++ * struct hifiberry_dacpro_clk - Common struct to the HiFiBerry DAC Pro
++ * @hw: clk_hw for the common clk framework
++ * @mode: 0 => CLK44EN, 1 => CLK48EN
++ */
++struct clk_hifiberry_hw {
++	struct clk_hw hw;
++	uint8_t mode;
++};
++
++#define to_hifiberry_clk(_hw) container_of(_hw, struct clk_hifiberry_hw, hw)
++
++static const struct of_device_id clk_hifiberry_dacpro_dt_ids[] = {
++	{ .compatible = "hifiberry,dacpro-clk",},
++	{ }
++};
++MODULE_DEVICE_TABLE(of, clk_hifiberry_dacpro_dt_ids);
++
++static unsigned long clk_hifiberry_dacpro_recalc_rate(struct clk_hw *hw,
++	unsigned long parent_rate)
++{
++	return (to_hifiberry_clk(hw)->mode == 0) ? CLK_44EN_RATE :
++		CLK_48EN_RATE;
++}
++
++static long clk_hifiberry_dacpro_round_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long *parent_rate)
++{
++	long actual_rate;
++
++	if (rate <= CLK_44EN_RATE) {
++		actual_rate = (long)CLK_44EN_RATE;
++	} else if (rate >= CLK_48EN_RATE) {
++		actual_rate = (long)CLK_48EN_RATE;
++	} else {
++		long diff44Rate = (long)(rate - CLK_44EN_RATE);
++		long diff48Rate = (long)(CLK_48EN_RATE - rate);
++
++		if (diff44Rate < diff48Rate)
++			actual_rate = (long)CLK_44EN_RATE;
++		else
++			actual_rate = (long)CLK_48EN_RATE;
++	}
++	return actual_rate;
++}
++
++
++static int clk_hifiberry_dacpro_set_rate(struct clk_hw *hw,
++	unsigned long rate, unsigned long parent_rate)
++{
++	unsigned long actual_rate;
++	struct clk_hifiberry_hw *clk = to_hifiberry_clk(hw);
++
++	actual_rate = (unsigned long)clk_hifiberry_dacpro_round_rate(hw, rate,
++		&parent_rate);
++	clk->mode = (actual_rate == CLK_44EN_RATE) ? 0 : 1;
++	return 0;
++}
++
++
++const struct clk_ops clk_hifiberry_dacpro_rate_ops = {
++	.recalc_rate = clk_hifiberry_dacpro_recalc_rate,
++	.round_rate = clk_hifiberry_dacpro_round_rate,
++	.set_rate = clk_hifiberry_dacpro_set_rate,
++};
++
++static int clk_hifiberry_dacpro_probe(struct platform_device *pdev)
++{
++	int ret;
++	struct clk_hifiberry_hw *proclk;
++	struct clk *clk;
++	struct device *dev;
++	struct clk_init_data init;
++
++	dev = &pdev->dev;
++
++	proclk = kzalloc(sizeof(struct clk_hifiberry_hw), GFP_KERNEL);
++	if (!proclk)
++		return -ENOMEM;
++
++	init.name = "clk-hifiberry-dacpro";
++	init.ops = &clk_hifiberry_dacpro_rate_ops;
++	init.flags = 0;
++	init.parent_names = NULL;
++	init.num_parents = 0;
++
++	proclk->mode = 0;
++	proclk->hw.init = &init;
++
++	clk = devm_clk_register(dev, &proclk->hw);
++	if (!IS_ERR(clk)) {
++		ret = of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
++			clk);
++	} else {
++		dev_err(dev, "Fail to register clock driver\n");
++		kfree(proclk);
++		ret = PTR_ERR(clk);
++	}
++	return ret;
++}
++
++static int clk_hifiberry_dacpro_remove(struct platform_device *pdev)
++{
++	of_clk_del_provider(pdev->dev.of_node);
++	return 0;
++}
++
++static struct platform_driver clk_hifiberry_dacpro_driver = {
++	.probe = clk_hifiberry_dacpro_probe,
++	.remove = clk_hifiberry_dacpro_remove,
++	.driver = {
++		.name = "clk-hifiberry-dacpro",
++		.of_match_table = clk_hifiberry_dacpro_dt_ids,
++	},
++};
++
++static int __init clk_hifiberry_dacpro_init(void)
++{
++	return platform_driver_register(&clk_hifiberry_dacpro_driver);
++}
++core_initcall(clk_hifiberry_dacpro_init);
++
++static void __exit clk_hifiberry_dacpro_exit(void)
++{
++	platform_driver_unregister(&clk_hifiberry_dacpro_driver);
++}
++module_exit(clk_hifiberry_dacpro_exit);
++
++MODULE_DESCRIPTION("HiFiBerry DAC Pro clock driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:clk-hifiberry-dacpro");
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -26,3 +26,277 @@ config SND_BCM63XX_I2S_WHISTLER
+ 	  DSL/PON chips (bcm63158, bcm63178)
+ 
+ 	  If you don't know what to do here, say N
++
++config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
++	tristate "Support for Google voiceHAT soundcard"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_VOICEHAT
++	select SND_RPI_SIMPLE_SOUNDCARD
++	help
++          Say Y or M if you want to add support for voiceHAT soundcard.
++
++config SND_BCM2708_SOC_HIFIBERRY_DAC
++        tristate "Support for HifiBerry DAC"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM5102A
++        select SND_RPI_SIMPLE_SOUNDCARD
++        help
++         Say Y or M if you want to add support for HifiBerry DAC.
++
++config SND_BCM2708_SOC_HIFIBERRY_DACPLUS
++        tristate "Support for HifiBerry DAC+"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM512x
++        select SND_SOC_TPA6130A2
++        select COMMON_CLK_HIFIBERRY_DACPRO
++        help
++         Say Y or M if you want to add support for HifiBerry DAC+.
++
++config SND_BCM2708_SOC_HIFIBERRY_DACPLUSHD
++        tristate "Support for HifiBerry DAC+ HD"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM179X_I2C
++        select COMMON_CLK_HIFIBERRY_DACPLUSHD
++        help
++         Say Y or M if you want to add support for HifiBerry DAC+ HD.
++
++config SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC
++        tristate "Support for HifiBerry DAC+ADC"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM512x_I2C
++	select SND_SOC_DMIC
++        select COMMON_CLK_HIFIBERRY_DACPRO
++        help
++         Say Y or M if you want to add support for HifiBerry DAC+ADC.
++
++config SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO
++        tristate "Support for HifiBerry DAC+ADC PRO"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM512x_I2C
++	select SND_SOC_PCM186X_I2C
++        select COMMON_CLK_HIFIBERRY_DACPRO
++        help
++         Say Y or M if you want to add support for HifiBerry DAC+ADC PRO.
++
++config SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP
++        tristate "Support for HifiBerry DAC+DSP"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_RPI_SIMPLE_SOUNDCARD
++        help
++         Say Y or M if you want to add support for HifiBerry DSP-DAC.
++
++config SND_BCM2708_SOC_HIFIBERRY_DIGI
++        tristate "Support for HifiBerry Digi"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_WM8804
++        help
++         Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board.
++
++config SND_BCM2708_SOC_HIFIBERRY_AMP
++        tristate "Support for the HifiBerry Amp"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_TAS5713
++        select SND_RPI_SIMPLE_SOUNDCARD
++        help
++         Say Y or M if you want to add support for the HifiBerry Amp amplifier board.
++
++config SND_BCM2708_SOC_RPI_CIRRUS
++        tristate "Support for Cirrus Logic Audio Card"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_WM5102
++        select SND_SOC_WM8804
++        help
++         Say Y or M if you want to add support for the Wolfson and
++         Cirrus Logic audio cards.
++
++config SND_BCM2708_SOC_RPI_DAC
++        tristate "Support for RPi-DAC"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_PCM1794A
++        select SND_RPI_SIMPLE_SOUNDCARD
++        help
++         Say Y or M if you want to add support for RPi-DAC.
++
++config SND_BCM2708_SOC_RPI_PROTO
++	tristate "Support for Rpi-PROTO"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8731
++	help
++	  Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731).
++
++config SND_BCM2708_SOC_JUSTBOOM_BOTH
++	tristate "Support for simultaneous JustBoom Digi and JustBoom DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8804
++	select SND_SOC_PCM512x
++	help
++		Say Y or M if you want to add support for simultaneous
++		JustBoom Digi and JustBoom DAC.
++
++		This is not the right choice if you only have one but both of
++		these cards.
++
++config SND_BCM2708_SOC_JUSTBOOM_DAC
++	tristate "Support for JustBoom DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM512x
++	help
++	  Say Y or M if you want to add support for JustBoom DAC.
++
++config SND_BCM2708_SOC_JUSTBOOM_DIGI
++	tristate "Support for JustBoom Digi"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8804
++        select SND_RPI_WM8804_SOUNDCARD
++	help
++	  Say Y or M if you want to add support for JustBoom Digi.
++
++config SND_BCM2708_SOC_IQAUDIO_CODEC
++	tristate "Support for IQaudIO-CODEC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_DA7213
++	help
++	  Say Y or M if you want to add support for IQaudIO-CODEC.
++
++config SND_BCM2708_SOC_IQAUDIO_DAC
++	tristate "Support for IQaudIO-DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM512x_I2C
++	help
++	  Say Y or M if you want to add support for IQaudIO-DAC.
++
++config SND_BCM2708_SOC_IQAUDIO_DIGI
++	tristate "Support for IQAudIO Digi"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8804
++	select SND_RPI_WM8804_SOUNDCARD
++	help
++	  Say Y or M if you want to add support for IQAudIO Digital IO board.
++
++config SND_BCM2708_SOC_I_SABRE_Q2M
++        tristate "Support for Audiophonics I-Sabre Q2M DAC"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_I_SABRE_CODEC
++        help
++        Say Y or M if you want to add support for Audiophonics I-SABRE Q2M DAC
++
++config SND_BCM2708_SOC_ADAU1977_ADC
++	tristate "Support for ADAU1977 ADC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_ADAU1977_I2C
++	select SND_RPI_SIMPLE_SOUNDCARD
++	help
++	  Say Y or M if you want to add support for ADAU1977 ADC.
++
++config SND_AUDIOINJECTOR_PI_SOUNDCARD
++	tristate "Support for audioinjector.net Pi add on soundcard"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8731
++	help
++	  Say Y or M if you want to add support for audioinjector.net Pi Hat
++
++config SND_AUDIOINJECTOR_OCTO_SOUNDCARD
++	tristate "Support for audioinjector.net Octo channel (Hat) soundcard"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_CS42XX8_I2C
++	help
++	  Say Y or M if you want to add support for audioinjector.net octo add on
++
++config SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD
++	tristate "Support for audioinjector.net isolated DAC and ADC soundcard"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_CS4271_I2C
++	help
++	  Say Y or M if you want to add support for audioinjector.net isolated soundcard
++
++config SND_AUDIOSENSE_PI
++	tristate "Support for AudioSense Add-On Soundcard"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_TLV320AIC32X4_I2C
++	help
++	  Say Y or M if you want to add support for tlv320aic32x4 add-on
++
++config SND_DIGIDAC1_SOUNDCARD
++        tristate "Support for Red Rocks Audio DigiDAC1"
++        depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++        select SND_SOC_WM8804
++        select SND_SOC_WM8741
++        help
++         Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board.
++
++config SND_BCM2708_SOC_DIONAUDIO_LOCO
++	tristate "Support for Dion Audio LOCO DAC-AMP"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM5102a
++	help
++	  Say Y or M if you want to add support for Dion Audio LOCO.
++
++config SND_BCM2708_SOC_DIONAUDIO_LOCO_V2
++	tristate "Support for Dion Audio LOCO-V2 DAC-AMP"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM5122
++	help
++	  Say Y or M if you want to add support for Dion Audio LOCO-V2.
++
++config SND_BCM2708_SOC_ALLO_PIANO_DAC
++	tristate "Support for Allo Piano DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM512x_I2C
++	help
++	  Say Y or M if you want to add support for Allo Piano DAC.
++
++config SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS
++	tristate "Support for Allo Piano DAC Plus"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM512x_I2C
++	help
++	  Say Y or M if you want to add support for Allo Piano DAC Plus.
++
++config SND_BCM2708_SOC_ALLO_BOSS_DAC
++	tristate "Support for Allo Boss DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_PCM512x_I2C
++	help
++	  Say Y or M if you want to add support for Allo Boss DAC.
++
++config SND_BCM2708_SOC_ALLO_DIGIONE
++	tristate "Support for Allo DigiOne"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_WM8804
++	select SND_RPI_WM8804_SOUNDCARD
++	help
++	  Say Y or M if you want to add support for Allo DigiOne.
++
++config SND_BCM2708_SOC_ALLO_KATANA_DAC
++	tristate "Support for Allo Katana DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	depends on I2C
++	select REGMAP_I2C
++	select SND_AUDIO_GRAPH_CARD
++	help
++	  Say Y or M if you want to add support for Allo Katana DAC.
++
++config SND_BCM2708_SOC_FE_PI_AUDIO
++	tristate "Support for Fe-Pi-Audio"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_SOC_SGTL5000
++	help
++	  Say Y or M if you want to add support for Fe-Pi-Audio.
++
++config SND_PISOUND
++	tristate "Support for Blokas Labs pisound"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	select SND_RAWMIDI
++	help
++	  Say Y or M if you want to add support for Blokas Labs pisound.
++
++config SND_RPI_SIMPLE_SOUNDCARD
++	tristate "Support for Raspberry Pi simple soundcards"
++	help
++	  Say Y or M if you want to add support Raspbery Pi simple soundcards
++
++config SND_RPI_WM8804_SOUNDCARD
++	tristate "Support for Raspberry Pi generic WM8804 soundcards"
++	help
++	  Say Y or M if you want to add support for the Raspberry Pi
++          generic driver for WM8804 based soundcards.
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -12,4 +12,65 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-
+ # BCM63XX Platform Support
+ snd-soc-63xx-objs := bcm63xx-i2s-whistler.o bcm63xx-pcm-whistler.o
+ 
+-obj-$(CONFIG_SND_BCM63XX_I2S_WHISTLER) += snd-soc-63xx.o
+\ No newline at end of file
++obj-$(CONFIG_SND_BCM63XX_I2S_WHISTLER) += snd-soc-63xx.o
++
++# Google voiceHAT custom codec support
++snd-soc-googlevoicehat-codec-objs := googlevoicehat-codec.o
++
++# BCM2708 Machine Support
++snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
++snd-soc-hifiberry-dacplushd-objs := hifiberry_dacplushd.o
++snd-soc-hifiberry-dacplusadc-objs := hifiberry_dacplusadc.o
++snd-soc-hifiberry-dacplusadcpro-objs := hifiberry_dacplusadcpro.o
++snd-soc-hifiberry-dacplusdsp-objs := hifiberry_dacplusdsp.o
++snd-soc-justboom-both-objs := justboom-both.o
++snd-soc-justboom-dac-objs := justboom-dac.o
++snd-soc-rpi-cirrus-objs := rpi-cirrus.o
++snd-soc-rpi-proto-objs := rpi-proto.o
++snd-soc-iqaudio-codec-objs := iqaudio-codec.o
++snd-soc-iqaudio-dac-objs := iqaudio-dac.o
++ snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
++snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
++snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o
++snd-soc-audioinjector-isolated-soundcard-objs := audioinjector-isolated-soundcard.o
++snd-soc-audiosense-pi-objs := audiosense-pi.o
++snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o
++snd-soc-dionaudio-loco-objs := dionaudio_loco.o
++snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o
++snd-soc-allo-boss-dac-objs := allo-boss-dac.o
++snd-soc-allo-piano-dac-objs := allo-piano-dac.o
++snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
++snd-soc-allo-katana-codec-objs := allo-katana-codec.o
++snd-soc-pisound-objs := pisound.o
++snd-soc-fe-pi-audio-objs := fe-pi-audio.o
++snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
++snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
++
++obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD)  += snd-soc-googlevoicehat-codec.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSHD) += snd-soc-hifiberry-dacplushd.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC) += snd-soc-hifiberry-dacplusadc.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADCPRO) += snd-soc-hifiberry-dacplusadcpro.o
++obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSDSP) += snd-soc-hifiberry-dacplusdsp.o
++obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_BOTH) += snd-soc-justboom-both.o
++obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o
++obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
++obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC) += snd-soc-iqaudio-codec.o
++obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
++obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
++obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o
++obj-$(CONFIG_SND_AUDIOINJECTOR_ISOLATED_SOUNDCARD) += snd-soc-audioinjector-isolated-soundcard.o
++obj-$(CONFIG_SND_AUDIOSENSE_PI) += snd-soc-audiosense-pi.o
++obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o
++obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o
++obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-codec.o
++obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
++obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
++obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o
++obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o
+--- /dev/null
++++ b/sound/soc/bcm/allo-boss-dac.c
+@@ -0,0 +1,456 @@
++/*
++ * ALSA ASoC Machine Driver for Allo Boss DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2017
++ *		based on code by Daniel Matuschek,
++ *				 Stuart MacLean <stuart@hifiberry.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include "../codecs/pcm512x.h"
++
++#define ALLO_BOSS_NOCLOCK 0
++#define ALLO_BOSS_CLK44EN 1
++#define ALLO_BOSS_CLK48EN 2
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++static struct gpio_desc *mute_gpio;
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 45158400UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 49152000UL
++
++static bool slave;
++static bool snd_soc_allo_boss_master;
++static bool digital_gain_0db_limit = true;
++
++static void snd_allo_boss_select_clk(struct snd_soc_component *component,
++	int clk_id)
++{
++	switch (clk_id) {
++	case ALLO_BOSS_NOCLOCK:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case ALLO_BOSS_CLK44EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case ALLO_BOSS_CLK48EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_allo_boss_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_allo_boss_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
++	return (!(sck & 0x40));
++}
++
++static bool snd_allo_boss_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_allo_boss_is_sclk(component);
++}
++
++static bool snd_allo_boss_is_master_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_allo_boss_clk_gpio(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_CLK44EN);
++	isClk44EN = snd_allo_boss_is_sclk_sleep(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_NOCLOCK);
++	isNoClk = snd_allo_boss_is_sclk_sleep(component);
++
++	snd_allo_boss_select_clk(component, ALLO_BOSS_CLK48EN);
++	isClk48En = snd_allo_boss_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_allo_boss_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = ALLO_BOSS_CLK44EN;
++		break;
++	default:
++		type = ALLO_BOSS_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_allo_boss_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype =	snd_allo_boss_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == ALLO_BOSS_CLK44EN)
++				? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_allo_boss_select_clk(component, ctype);
++	}
++}
++
++static int snd_allo_boss_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
++
++	if (slave)
++		snd_soc_allo_boss_master = false;
++	else
++		snd_soc_allo_boss_master =
++			snd_allo_boss_is_master_card(component);
++
++	if (snd_soc_allo_boss_master) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "BossDAC";
++		dai->stream_name = "Boss DAC HiFi [Master]";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++		/*
++		* Default sclk to CLK_48EN_RATE, otherwise codec
++		*  pcm512x_dai_startup_master method could call
++		*  snd_pcm_hw_constraint_ratnums using CLK_44EN/64
++		*  which will mask 384k sample rate.
++		*/
++		if (!IS_ERR(priv->sclk))
++			clk_set_rate(priv->sclk, CLK_48EN_RATE);
++	} else {
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++				207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++					ret);
++	}
++
++	return 0;
++}
++
++static int snd_allo_boss_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static void snd_allo_boss_gpio_mute(struct snd_soc_card *card)
++{
++	if (mute_gpio)
++		gpiod_set_value_cansleep(mute_gpio, 1);
++}
++
++static void snd_allo_boss_gpio_unmute(struct snd_soc_card *card)
++{
++	if (mute_gpio)
++		gpiod_set_value_cansleep(mute_gpio, 0);
++}
++
++static int snd_allo_boss_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
++{
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_soc_dai *codec_dai;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	if (dapm->dev != codec_dai->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
++			break;
++		/* UNMUTE DAC */
++		snd_allo_boss_gpio_unmute(card);
++		break;
++
++	case SND_SOC_BIAS_STANDBY:
++		if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
++			break;
++		/* MUTE DAC */
++		snd_allo_boss_gpio_mute(card);
++		break;
++
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++static int snd_allo_boss_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = snd_pcm_format_physical_width(params_format(params));
++
++	if (snd_soc_allo_boss_master) {
++		struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++		snd_allo_boss_set_sclk(component,
++			params_rate(params));
++
++		ret = snd_allo_boss_update_rate_den(
++			substream, params);
++		if (ret)
++			return ret;
++	}
++
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
++	return ret;
++}
++
++static int snd_allo_boss_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++	snd_allo_boss_gpio_mute(card);
++
++	if (snd_soc_allo_boss_master) {
++		struct pcm512x_priv *priv = snd_soc_component_get_drvdata(component);
++		/*
++		 * Default sclk to CLK_48EN_RATE, otherwise codec
++		 * pcm512x_dai_startup_master method could call
++		 * snd_pcm_hw_constraint_ratnums using CLK_44EN/64
++		 * which will mask 384k sample rate.
++		 */
++		if (!IS_ERR(priv->sclk))
++			clk_set_rate(priv->sclk, CLK_48EN_RATE);
++	}
++
++	return 0;
++}
++
++static void snd_allo_boss_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++}
++
++static int snd_allo_boss_prepare(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_allo_boss_gpio_unmute(card);
++	return 0;
++}
++/* machine stream operations */
++static struct snd_soc_ops snd_allo_boss_ops = {
++	.hw_params = snd_allo_boss_hw_params,
++	.startup = snd_allo_boss_startup,
++	.shutdown = snd_allo_boss_shutdown,
++	.prepare = snd_allo_boss_prepare,
++};
++
++SND_SOC_DAILINK_DEFS(allo_boss,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_allo_boss_dai[] = {
++{
++	.name		= "Boss DAC",
++	.stream_name	= "Boss DAC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_allo_boss_ops,
++	.init		= snd_allo_boss_init,
++	SND_SOC_DAILINK_REG(allo_boss),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_boss = {
++	.name         = "BossDAC",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_allo_boss_dai,
++	.num_links    = ARRAY_SIZE(snd_allo_boss_dai),
++};
++
++static int snd_allo_boss_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_allo_boss.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_allo_boss_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "allo,24db_digital_gain");
++		slave = of_property_read_bool(pdev->dev.of_node,
++						"allo,slave");
++
++		mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
++							GPIOD_OUT_LOW);
++		if (IS_ERR(mute_gpio)) {
++			ret = PTR_ERR(mute_gpio);
++			dev_err(&pdev->dev,
++				"failed to get mute gpio: %d\n", ret);
++			return ret;
++		}
++
++		if (mute_gpio)
++			snd_allo_boss.set_bias_level =
++				snd_allo_boss_set_bias_level;
++
++		ret = snd_soc_register_card(&snd_allo_boss);
++		if (ret) {
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++			return ret;
++		}
++
++		if (mute_gpio)
++			snd_allo_boss_gpio_mute(&snd_allo_boss);
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int snd_allo_boss_remove(struct platform_device *pdev)
++{
++	snd_allo_boss_gpio_mute(&snd_allo_boss);
++	return snd_soc_unregister_card(&snd_allo_boss);
++}
++
++static const struct of_device_id snd_allo_boss_of_match[] = {
++	{ .compatible = "allo,boss-dac", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_allo_boss_of_match);
++
++static struct platform_driver snd_allo_boss_driver = {
++	.driver = {
++		.name   = "snd-allo-boss-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_allo_boss_of_match,
++	},
++	.probe          = snd_allo_boss_probe,
++	.remove         = snd_allo_boss_remove,
++};
++
++module_platform_driver(snd_allo_boss_driver);
++
++MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Boss DAC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/allo-katana-codec.c
+@@ -0,0 +1,388 @@
++/*
++ * Driver for the ALLO KATANA CODEC
++ *
++ * Author: Jaikumar <jaikumar@cem-solutions.net>
++ *		Copyright 2018
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <linux/gcd.h>
++#include <sound/soc.h>
++#include <sound/soc-dapm.h>
++#include <sound/pcm_params.h>
++#include <sound/tlv.h>
++#include <linux/i2c.h>
++
++
++#define KATANA_CODEC_CHIP_ID		0x30
++#define KATANA_CODEC_VIRT_BASE		0x100
++#define KATANA_CODEC_PAGE		0
++
++#define KATANA_CODEC_CHIP_ID_REG	(KATANA_CODEC_VIRT_BASE + 0)
++#define KATANA_CODEC_RESET		(KATANA_CODEC_VIRT_BASE + 1)
++#define KATANA_CODEC_VOLUME_1		(KATANA_CODEC_VIRT_BASE + 2)
++#define KATANA_CODEC_VOLUME_2		(KATANA_CODEC_VIRT_BASE + 3)
++#define KATANA_CODEC_MUTE		(KATANA_CODEC_VIRT_BASE + 4)
++#define KATANA_CODEC_DSP_PROGRAM	(KATANA_CODEC_VIRT_BASE + 5)
++#define KATANA_CODEC_DEEMPHASIS		(KATANA_CODEC_VIRT_BASE + 6)
++#define KATANA_CODEC_DOP		(KATANA_CODEC_VIRT_BASE + 7)
++#define KATANA_CODEC_FORMAT		(KATANA_CODEC_VIRT_BASE + 8)
++#define KATANA_CODEC_COMMAND		(KATANA_CODEC_VIRT_BASE + 9)
++#define KATANA_CODEC_MUTE_STREAM	(KATANA_CODEC_VIRT_BASE + 10)
++
++#define KATANA_CODEC_MAX_REGISTER	(KATANA_CODEC_VIRT_BASE + 10)
++
++#define KATANA_CODEC_FMT		0xff
++#define KATANA_CODEC_CHAN_MONO		0x00
++#define KATANA_CODEC_CHAN_STEREO	0x80
++#define KATANA_CODEC_ALEN_16		0x10
++#define KATANA_CODEC_ALEN_24		0x20
++#define KATANA_CODEC_ALEN_32		0x30
++#define KATANA_CODEC_RATE_11025		0x01
++#define KATANA_CODEC_RATE_22050		0x02
++#define KATANA_CODEC_RATE_32000		0x03
++#define KATANA_CODEC_RATE_44100		0x04
++#define KATANA_CODEC_RATE_48000		0x05
++#define KATANA_CODEC_RATE_88200		0x06
++#define KATANA_CODEC_RATE_96000		0x07
++#define KATANA_CODEC_RATE_176400	0x08
++#define KATANA_CODEC_RATE_192000	0x09
++#define KATANA_CODEC_RATE_352800	0x0a
++#define KATANA_CODEC_RATE_384000	0x0b
++
++
++struct katana_codec_priv {
++	struct regmap *regmap;
++	int fmt;
++};
++
++static const struct reg_default katana_codec_reg_defaults[] = {
++	{ KATANA_CODEC_RESET,		0x00 },
++	{ KATANA_CODEC_VOLUME_1,	0xF0 },
++	{ KATANA_CODEC_VOLUME_2,	0xF0 },
++	{ KATANA_CODEC_MUTE,		0x00 },
++	{ KATANA_CODEC_DSP_PROGRAM,	0x04 },
++	{ KATANA_CODEC_DEEMPHASIS,	0x00 },
++	{ KATANA_CODEC_DOP,		0x00 },
++	{ KATANA_CODEC_FORMAT,		0xb4 },
++};
++
++static const char * const katana_codec_dsp_program_texts[] = {
++	"Linear Phase Fast Roll-off Filter",
++	"Linear Phase Slow Roll-off Filter",
++	"Minimum Phase Fast Roll-off Filter",
++	"Minimum Phase Slow Roll-off Filter",
++	"Apodizing Fast Roll-off Filter",
++	"Corrected Minimum Phase Fast Roll-off Filter",
++	"Brick Wall Filter",
++};
++
++static const unsigned int katana_codec_dsp_program_values[] = {
++	0,
++	1,
++	2,
++	3,
++	4,
++	6,
++	7,
++};
++
++static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_dsp_program,
++				  KATANA_CODEC_DSP_PROGRAM, 0, 0x07,
++				  katana_codec_dsp_program_texts,
++				  katana_codec_dsp_program_values);
++
++static const char * const katana_codec_deemphasis_texts[] = {
++	"Bypass",
++	"32kHz",
++	"44.1kHz",
++	"48kHz",
++};
++
++static const unsigned int katana_codec_deemphasis_values[] = {
++	0,
++	1,
++	2,
++	3,
++};
++
++static SOC_VALUE_ENUM_SINGLE_DECL(katana_codec_deemphasis,
++				  KATANA_CODEC_DEEMPHASIS, 0, 0x03,
++				  katana_codec_deemphasis_texts,
++				  katana_codec_deemphasis_values);
++
++static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12750, 0);
++
++static const struct snd_kcontrol_new katana_codec_controls[] = {
++	SOC_DOUBLE_R_TLV("Master Playback Volume", KATANA_CODEC_VOLUME_1,
++			KATANA_CODEC_VOLUME_2, 0, 255, 1, master_tlv),
++	SOC_DOUBLE("Master Playback Switch", KATANA_CODEC_MUTE, 0, 0, 1, 1),
++	SOC_ENUM("DSP Program Route", katana_codec_dsp_program),
++	SOC_ENUM("Deemphasis Route", katana_codec_deemphasis),
++	SOC_SINGLE("DoP Playback Switch", KATANA_CODEC_DOP, 0, 1, 1)
++};
++
++static bool katana_codec_readable_register(struct device *dev,
++				unsigned int reg)
++{
++	switch (reg) {
++	case KATANA_CODEC_CHIP_ID_REG:
++		return true;
++	default:
++		return reg < 0xff;
++	}
++}
++
++static int katana_codec_hw_params(struct snd_pcm_substream *substream,
++			     struct snd_pcm_hw_params *params,
++			     struct snd_soc_dai *dai)
++{
++	struct snd_soc_component *component = dai->component;
++	struct katana_codec_priv *katana_codec =
++		snd_soc_component_get_drvdata(component);
++	int fmt = 0;
++	int ret;
++
++	dev_dbg(component->card->dev, "hw_params %u Hz, %u channels, %u bits\n",
++			params_rate(params),
++			params_channels(params),
++			params_width(params));
++
++	switch (katana_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++	case SND_SOC_DAIFMT_CBM_CFM: // master
++		if (params_channels(params) == 2)
++			fmt = KATANA_CODEC_CHAN_STEREO;
++		else
++			fmt = KATANA_CODEC_CHAN_MONO;
++
++		switch (params_width(params)) {
++		case 16:
++			fmt |= KATANA_CODEC_ALEN_16;
++			break;
++		case 24:
++			fmt |= KATANA_CODEC_ALEN_24;
++			break;
++		case 32:
++			fmt |= KATANA_CODEC_ALEN_32;
++			break;
++		default:
++			dev_err(component->card->dev, "Bad frame size: %d\n",
++					params_width(params));
++			return -EINVAL;
++		}
++
++		switch (params_rate(params)) {
++		case 44100:
++			fmt |= KATANA_CODEC_RATE_44100;
++			break;
++		case 48000:
++			fmt |= KATANA_CODEC_RATE_48000;
++			break;
++		case 88200:
++			fmt |= KATANA_CODEC_RATE_88200;
++			break;
++		case 96000:
++			fmt |= KATANA_CODEC_RATE_96000;
++			break;
++		case 176400:
++			fmt |= KATANA_CODEC_RATE_176400;
++			break;
++		case 192000:
++			fmt |= KATANA_CODEC_RATE_192000;
++			break;
++		case 352800:
++			fmt |= KATANA_CODEC_RATE_352800;
++			break;
++		case 384000:
++			fmt |= KATANA_CODEC_RATE_384000;
++			break;
++		default:
++			dev_err(component->card->dev, "Bad sample rate: %d\n",
++					params_rate(params));
++			return -EINVAL;
++		}
++
++		ret = regmap_write(katana_codec->regmap, KATANA_CODEC_FORMAT,
++					fmt);
++		if (ret != 0) {
++			dev_err(component->card->dev, "Failed to set format: %d\n", ret);
++			return ret;
++		}
++		break;
++
++	case SND_SOC_DAIFMT_CBS_CFS:
++		break;
++
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int katana_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
++{
++	struct snd_soc_component *component = dai->component;
++	struct katana_codec_priv *katana_codec =
++		snd_soc_component_get_drvdata(component);
++
++	katana_codec->fmt = fmt;
++
++	return 0;
++}
++
++int katana_codec_dai_mute_stream(struct snd_soc_dai *dai, int mute,
++						int stream)
++{
++	struct snd_soc_component *component = dai->component;
++	struct katana_codec_priv *katana_codec =
++		snd_soc_component_get_drvdata(component);
++	int ret = 0;
++
++	ret = regmap_write(katana_codec->regmap, KATANA_CODEC_MUTE_STREAM,
++				mute);
++	if (ret != 0) {
++		dev_err(component->card->dev, "Failed to set mute: %d\n", ret);
++		return ret;
++	}
++	return ret;
++}
++
++static const struct snd_soc_dai_ops katana_codec_dai_ops = {
++	.mute_stream = katana_codec_dai_mute_stream,
++	.hw_params = katana_codec_hw_params,
++	.set_fmt = katana_codec_set_fmt,
++};
++
++static struct snd_soc_dai_driver katana_codec_dai = {
++	.name = "allo-katana-codec",
++	.playback = {
++		.stream_name = "Playback",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.rate_min = 44100,
++		.rate_max = 384000,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			SNDRV_PCM_FMTBIT_S32_LE
++	},
++	.ops = &katana_codec_dai_ops,
++};
++
++static struct snd_soc_component_driver katana_codec_component_driver = {
++	.idle_bias_on = true,
++
++	.controls		= katana_codec_controls,
++	.num_controls	= ARRAY_SIZE(katana_codec_controls),
++};
++
++static const struct regmap_range_cfg katana_codec_range = {
++	.name = "Pages", .range_min = KATANA_CODEC_VIRT_BASE,
++	.range_max = KATANA_CODEC_MAX_REGISTER,
++	.selector_reg = KATANA_CODEC_PAGE,
++	.selector_mask = 0xff,
++	.window_start = 0, .window_len = 0x100,
++};
++
++const struct regmap_config katana_codec_regmap = {
++	.reg_bits = 8,
++	.val_bits = 8,
++
++	.ranges = &katana_codec_range,
++	.num_ranges = 1,
++
++	.max_register = KATANA_CODEC_MAX_REGISTER,
++	.readable_reg = katana_codec_readable_register,
++	.reg_defaults = katana_codec_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(katana_codec_reg_defaults),
++	.cache_type = REGCACHE_RBTREE,
++};
++
++static int allo_katana_component_probe(struct i2c_client *i2c,
++			     const struct i2c_device_id *id)
++{
++	struct regmap *regmap;
++	struct regmap_config config = katana_codec_regmap;
++	struct device *dev = &i2c->dev;
++	struct katana_codec_priv *katana_codec;
++	unsigned int chip_id = 0;
++	int ret;
++
++	regmap = devm_regmap_init_i2c(i2c, &config);
++	if (IS_ERR(regmap))
++		return PTR_ERR(regmap);
++
++	katana_codec = devm_kzalloc(dev, sizeof(struct katana_codec_priv),
++					GFP_KERNEL);
++	if (!katana_codec)
++		return -ENOMEM;
++
++	dev_set_drvdata(dev, katana_codec);
++	katana_codec->regmap = regmap;
++
++	ret = regmap_read(regmap, KATANA_CODEC_CHIP_ID_REG, &chip_id);
++	if ((ret != 0) || (chip_id != KATANA_CODEC_CHIP_ID)) {
++		dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
++		return ret;
++	}
++	regmap_update_bits(regmap, KATANA_CODEC_RESET, 0x01, 0x01);
++	msleep(10);
++
++	ret = snd_soc_register_component(dev, &katana_codec_component_driver,
++				    &katana_codec_dai, 1);
++	if (ret != 0) {
++		dev_err(dev, "failed to register codec: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++static int allo_katana_component_remove(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	return 0;
++}
++
++static const struct i2c_device_id allo_katana_component_id[] = {
++	{ "allo-katana-codec", },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, allo_katana_component_id);
++
++static const struct of_device_id allo_katana_codec_of_match[] = {
++	{ .compatible = "allo,allo-katana-codec", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, allo_katana_codec_of_match);
++
++static struct i2c_driver allo_katana_component_driver = {
++	.probe		= allo_katana_component_probe,
++	.remove		= allo_katana_component_remove,
++	.id_table	= allo_katana_component_id,
++	.driver		= {
++	.name		= "allo-katana-codec",
++	.of_match_table = allo_katana_codec_of_match,
++	},
++};
++
++module_i2c_driver(allo_katana_component_driver);
++
++MODULE_DESCRIPTION("ASoC Allo Katana Codec Driver");
++MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/allo-piano-dac-plus.c
+@@ -0,0 +1,987 @@
++/*
++ * ALSA ASoC Machine Driver for Allo Piano DAC Plus Subwoofer
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2016
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/gpio/consumer.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <linux/firmware.h>
++#include <linux/delay.h>
++#include <sound/tlv.h>
++#include "../codecs/pcm512x.h"
++
++#define P_DAC_LEFT_MUTE		0x10
++#define P_DAC_RIGHT_MUTE	0x01
++#define P_DAC_MUTE		0x11
++#define P_DAC_UNMUTE		0x00
++#define P_MUTE			1
++#define P_UNMUTE		0
++
++struct dsp_code {
++	char i2c_addr;
++	char offset;
++	char val;
++};
++
++struct glb_pool {
++	struct mutex lock;
++	unsigned int dual_mode;
++	unsigned int set_lowpass;
++	unsigned int set_mode;
++	unsigned int set_rate;
++	unsigned int dsp_page_number;
++};
++
++static bool digital_gain_0db_limit = true;
++bool glb_mclk;
++
++static struct gpio_desc *mute_gpio[2];
++
++static const char * const allo_piano_mode_texts[] = {
++	"None",
++	"2.0",
++	"2.1",
++	"2.2",
++};
++
++static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
++		0, 0, allo_piano_mode_texts);
++
++static const char * const allo_piano_dual_mode_texts[] = {
++	"None",
++	"Dual-Mono",
++	"Dual-Stereo",
++};
++
++static const SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
++		0, 0, allo_piano_dual_mode_texts);
++
++static const char * const allo_piano_dsp_low_pass_texts[] = {
++	"60",
++	"70",
++	"80",
++	"90",
++	"100",
++	"110",
++	"120",
++	"130",
++	"140",
++	"150",
++	"160",
++	"170",
++	"180",
++	"190",
++	"200",
++};
++
++static const SOC_ENUM_SINGLE_DECL(allo_piano_enum,
++		0, 0, allo_piano_dsp_low_pass_texts);
++
++static int __snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd,
++		unsigned int mode, unsigned int rate, unsigned int lowpass)
++{
++	const struct firmware *fw;
++	struct snd_soc_card *card = rtd->card;
++	struct glb_pool *glb_ptr = card->drvdata;
++	char firmware_name[60];
++	int ret = 0, dac = 0;
++
++	if (rate <= 46000)
++		rate = 44100;
++	else if (rate <= 68000)
++		rate = 48000;
++	else if (rate <= 92000)
++		rate = 88200;
++	else if (rate <= 136000)
++		rate = 96000;
++	else if (rate <= 184000)
++		rate = 176400;
++	else
++		rate = 192000;
++
++	if (lowpass > 14)
++		glb_ptr->set_lowpass = lowpass = 0;
++
++	if (mode > 3)
++		glb_ptr->set_mode = mode = 0;
++
++	if (mode > 0)
++		glb_ptr->dual_mode = 0;
++
++	/* same configuration loaded */
++	if ((rate == glb_ptr->set_rate) && (lowpass == glb_ptr->set_lowpass)
++			&& (mode == glb_ptr->set_mode))
++		return 0;
++
++	switch (mode) {
++	case 0: /* None */
++		return 1;
++
++	case 1: /* 2.0 */
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_MUTE, P_DAC_UNMUTE);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_MUTE, P_DAC_MUTE);
++		glb_ptr->set_rate = rate;
++		glb_ptr->set_mode = mode;
++		glb_ptr->set_lowpass = lowpass;
++		return 1;
++
++	default:
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_MUTE, P_DAC_UNMUTE);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_MUTE, P_DAC_UNMUTE);
++	}
++
++	for (dac = 0; dac < rtd->num_codecs; dac++) {
++		struct dsp_code *dsp_code_read;
++		int i = 1;
++
++		if (dac == 0) { /* high */
++			snprintf(firmware_name, sizeof(firmware_name),
++				"allo/piano/2.2/allo-piano-dsp-%d-%d-%d.bin",
++				rate, ((lowpass * 10) + 60), dac);
++		} else { /* low */
++			snprintf(firmware_name, sizeof(firmware_name),
++				"allo/piano/2.%d/allo-piano-dsp-%d-%d-%d.bin",
++				(mode - 1), rate, ((lowpass * 10) + 60), dac);
++		}
++
++		dev_info(rtd->card->dev, "Dsp Firmware File Name: %s\n",
++				firmware_name);
++
++		ret = request_firmware(&fw, firmware_name, rtd->card->dev);
++		if (ret < 0) {
++			dev_err(rtd->card->dev,
++				"Error: Allo Piano Firmware %s missing. %d\n",
++				firmware_name, ret);
++			goto err;
++		}
++
++		while (i < (fw->size - 1)) {
++			dsp_code_read = (struct dsp_code *)&fw->data[i];
++
++			if (dsp_code_read->offset == 0) {
++				glb_ptr->dsp_page_number = dsp_code_read->val;
++				ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
++						PCM512x_PAGE_BASE(0),
++						dsp_code_read->val);
++
++			} else if (dsp_code_read->offset != 0) {
++				ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
++					(PCM512x_PAGE_BASE(
++						glb_ptr->dsp_page_number) +
++					dsp_code_read->offset),
++					dsp_code_read->val);
++			}
++			if (ret < 0) {
++				dev_err(rtd->card->dev,
++					"Failed to write Register: %d\n", ret);
++				release_firmware(fw);
++				goto err;
++			}
++			i = i + 3;
++		}
++		release_firmware(fw);
++	}
++	glb_ptr->set_rate = rate;
++	glb_ptr->set_mode = mode;
++	glb_ptr->set_lowpass = lowpass;
++	return 1;
++
++err:
++	return ret;
++}
++
++static int snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd,
++		unsigned int mode, unsigned int rate, unsigned int lowpass)
++{
++	struct snd_soc_card *card = rtd->card;
++	struct glb_pool *glb_ptr = card->drvdata;
++	int ret = 0;
++
++	mutex_lock(&glb_ptr->lock);
++
++	ret = __snd_allo_piano_dsp_program(rtd, mode, rate, lowpass);
++
++	mutex_unlock(&glb_ptr->lock);
++
++	return ret;
++}
++
++static int snd_allo_piano_dual_mode_get(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++
++	ucontrol->value.integer.value[0] = glb_ptr->dual_mode;
++
++	return 0;
++}
++
++static int snd_allo_piano_dual_mode_put(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_card *snd_card_ptr = card->snd_card;
++	struct snd_kcontrol *kctl;
++	struct soc_mixer_control *mc;
++	unsigned int left_val = 0, right_val = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
++	if (ucontrol->value.integer.value[0] > 0) {
++		glb_ptr->dual_mode = ucontrol->value.integer.value[0];
++		glb_ptr->set_mode = 0;
++	} else {
++		if (glb_ptr->set_mode <= 0) {
++			glb_ptr->dual_mode = 1;
++			glb_ptr->set_mode = 0;
++		} else {
++			glb_ptr->dual_mode = 0;
++			return 0;
++		}
++	}
++
++	if (glb_ptr->dual_mode == 1) { // Dual Mono
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_MUTE, P_DAC_RIGHT_MUTE);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_MUTE, P_DAC_LEFT_MUTE);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_3, 0xff);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2, 0xff);
++
++		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
++			if (!strncmp(kctl->id.name, "Digital Playback Volume",
++					sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = mc->reg;
++				break;
++			}
++		}
++	} else {
++		left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
++						PCM512x_DIGITAL_VOLUME_2);
++		right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
++						PCM512x_DIGITAL_VOLUME_3);
++
++		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
++			if (!strncmp(kctl->id.name, "Digital Playback Volume",
++					sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = PCM512x_DIGITAL_VOLUME_3;
++				break;
++			}
++		}
++
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_3, left_val);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2, right_val);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_MUTE, P_DAC_UNMUTE);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_MUTE, P_DAC_UNMUTE);
++	}
++
++	return 0;
++}
++
++static int snd_allo_piano_mode_get(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++
++	ucontrol->value.integer.value[0] = glb_ptr->set_mode;
++	return 0;
++}
++
++static int snd_allo_piano_mode_put(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_card *snd_card_ptr = card->snd_card;
++	struct snd_kcontrol *kctl;
++	struct soc_mixer_control *mc;
++	unsigned int left_val = 0, right_val = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
++	if ((glb_ptr->dual_mode == 1) &&
++			(ucontrol->value.integer.value[0] > 0)) {
++		left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
++						PCM512x_DIGITAL_VOLUME_2);
++		right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
++						PCM512x_DIGITAL_VOLUME_2);
++
++		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
++			if (!strncmp(kctl->id.name, "Digital Playback Volume",
++					sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = PCM512x_DIGITAL_VOLUME_3;
++				break;
++			}
++		}
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_3, left_val);
++		snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_3, right_val);
++	}
++
++	return(snd_allo_piano_dsp_program(rtd,
++				ucontrol->value.integer.value[0],
++				glb_ptr->set_rate, glb_ptr->set_lowpass));
++}
++
++static int snd_allo_piano_lowpass_get(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++
++	ucontrol->value.integer.value[0] = glb_ptr->set_lowpass;
++	return 0;
++}
++
++static int snd_allo_piano_lowpass_put(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	struct glb_pool *glb_ptr = card->drvdata;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	return(snd_allo_piano_dsp_program(rtd,
++				glb_ptr->set_mode, glb_ptr->set_rate,
++				ucontrol->value.integer.value[0]));
++}
++
++static int pcm512x_get_reg_sub(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct soc_mixer_control *mc =
++		(struct soc_mixer_control *)kcontrol->private_value;
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	unsigned int left_val = 0;
++	unsigned int right_val = 0;
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
++			PCM512x_DIGITAL_VOLUME_3);
++	if (glb_ptr->dual_mode != 1) {
++		left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2);
++
++	} else {
++		left_val = right_val;
++	}
++
++	ucontrol->value.integer.value[0] =
++				(~(left_val >> mc->shift)) & mc->max;
++	ucontrol->value.integer.value[1] =
++				(~(right_val >> mc->shift)) & mc->max;
++
++	return 0;
++}
++
++static int pcm512x_set_reg_sub(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct soc_mixer_control *mc =
++		(struct soc_mixer_control *)kcontrol->private_value;
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max);
++	unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max);
++	int ret = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	if (glb_ptr->dual_mode != 1) {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2, (~left_val));
++		if (ret < 0)
++			return ret;
++	}
++
++	if (digital_gain_0db_limit) {
++		ret = snd_soc_limit_volume(card, "Subwoofer Playback Volume",
++					207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++				ret);
++	}
++
++	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++			PCM512x_DIGITAL_VOLUME_3, (~right_val));
++	if (ret < 0)
++		return ret;
++
++	return 1;
++}
++
++static int pcm512x_get_reg_sub_switch(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	int val = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE);
++
++	ucontrol->value.integer.value[0] =
++			(val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE;
++	ucontrol->value.integer.value[1] =
++			(val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE;
++
++	return val;
++}
++
++static int pcm512x_set_reg_sub_switch(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	struct glb_pool *glb_ptr = card->drvdata;
++	unsigned int left_val = (ucontrol->value.integer.value[0]);
++	unsigned int right_val = (ucontrol->value.integer.value[1]);
++	int ret = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	if (glb_ptr->set_mode != 1) {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
++				~((left_val & 0x01)<<4 | (right_val & 0x01)));
++		if (ret < 0)
++			return ret;
++	}
++	return 1;
++
++}
++
++static int pcm512x_get_reg_master(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct soc_mixer_control *mc =
++		(struct soc_mixer_control *)kcontrol->private_value;
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	unsigned int left_val = 0, right_val = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
++	left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
++			PCM512x_DIGITAL_VOLUME_2);
++
++	if (glb_ptr->dual_mode == 1) {
++		right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_3);
++	} else {
++		right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_3);
++	}
++
++	ucontrol->value.integer.value[0] =
++		(~(left_val  >> mc->shift)) & mc->max;
++	ucontrol->value.integer.value[1] =
++		(~(right_val >> mc->shift)) & mc->max;
++
++	return 0;
++}
++
++static int pcm512x_set_reg_master(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct soc_mixer_control *mc =
++		(struct soc_mixer_control *)kcontrol->private_value;
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	unsigned int left_val = (ucontrol->value.integer.value[0] & mc->max);
++	unsigned int right_val = (ucontrol->value.integer.value[1] & mc->max);
++	int ret = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
++	if (digital_gain_0db_limit) {
++		ret = snd_soc_limit_volume(card, "Master Playback Volume",
++					207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++				ret);
++	}
++
++	if (glb_ptr->dual_mode != 1) {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2, (~left_val));
++		if (ret < 0)
++			return ret;
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_3, (~right_val));
++		if (ret < 0)
++			return ret;
++
++	}
++
++	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++			PCM512x_DIGITAL_VOLUME_3, (~right_val));
++	if (ret < 0)
++		return ret;
++
++	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++			PCM512x_DIGITAL_VOLUME_2, (~left_val));
++	if (ret < 0)
++		return ret;
++	return 1;
++}
++
++static int pcm512x_get_reg_master_switch(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct glb_pool *glb_ptr = card->drvdata;
++	struct snd_soc_pcm_runtime *rtd;
++	int val = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
++	val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE);
++
++	ucontrol->value.integer.value[0] =
++			(val & P_DAC_LEFT_MUTE) ? P_UNMUTE : P_MUTE;
++
++	if (glb_ptr->dual_mode == 1) {
++		val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE);
++	}
++	ucontrol->value.integer.value[1] =
++			(val & P_DAC_RIGHT_MUTE) ? P_UNMUTE : P_MUTE;
++
++	return val;
++}
++
++static int pcm512x_set_reg_master_switch(struct snd_kcontrol *kcontrol,
++		struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	struct glb_pool *glb_ptr = card->drvdata;
++	unsigned int left_val = (ucontrol->value.integer.value[0]);
++	unsigned int right_val = (ucontrol->value.integer.value[1]);
++	int ret = 0;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	if (glb_ptr->dual_mode == 1) {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
++				~((left_val & 0x01)<<4));
++		if (ret < 0)
++			return ret;
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
++				~((right_val & 0x01)));
++		if (ret < 0)
++			return ret;
++
++	} else if (glb_ptr->set_mode == 1) {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
++				~((left_val & 0x01)<<4 | (right_val & 0x01)));
++		if (ret < 0)
++			return ret;
++
++	} else {
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component, PCM512x_MUTE,
++				~((left_val & 0x01)<<4 | (right_val & 0x01)));
++		if (ret < 0)
++			return ret;
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component, PCM512x_MUTE,
++				~((left_val & 0x01)<<4 | (right_val & 0x01)));
++		if (ret < 0)
++			return ret;
++	}
++	return 1;
++}
++
++static const DECLARE_TLV_DB_SCALE(digital_tlv_sub, -10350, 50, 1);
++static const DECLARE_TLV_DB_SCALE(digital_tlv_master, -10350, 50, 1);
++
++static const struct snd_kcontrol_new allo_piano_controls[] = {
++	SOC_ENUM_EXT("Subwoofer mode Route",
++			allo_piano_mode_enum,
++			snd_allo_piano_mode_get,
++			snd_allo_piano_mode_put),
++
++	SOC_ENUM_EXT("Dual Mode Route",
++			allo_piano_dual_mode_enum,
++			snd_allo_piano_dual_mode_get,
++			snd_allo_piano_dual_mode_put),
++
++	SOC_ENUM_EXT("Lowpass Route", allo_piano_enum,
++			snd_allo_piano_lowpass_get,
++			snd_allo_piano_lowpass_put),
++
++	SOC_DOUBLE_R_EXT_TLV("Subwoofer Playback Volume",
++			PCM512x_DIGITAL_VOLUME_2,
++			PCM512x_DIGITAL_VOLUME_3, 0, 255, 1,
++			pcm512x_get_reg_sub,
++			pcm512x_set_reg_sub,
++			digital_tlv_sub),
++
++	SOC_DOUBLE_EXT("Subwoofer Playback Switch",
++			PCM512x_MUTE,
++			PCM512x_RQML_SHIFT,
++			PCM512x_RQMR_SHIFT, 1, 1,
++			pcm512x_get_reg_sub_switch,
++			pcm512x_set_reg_sub_switch),
++
++	SOC_DOUBLE_R_EXT_TLV("Master Playback Volume",
++			PCM512x_DIGITAL_VOLUME_2,
++			PCM512x_DIGITAL_VOLUME_3, 0, 255, 1,
++			pcm512x_get_reg_master,
++			pcm512x_set_reg_master,
++			digital_tlv_master),
++
++	SOC_DOUBLE_EXT("Master Playback Switch",
++			PCM512x_MUTE,
++			PCM512x_RQML_SHIFT,
++			PCM512x_RQMR_SHIFT, 1, 1,
++			pcm512x_get_reg_master_switch,
++			pcm512x_set_reg_master_switch),
++};
++
++static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_card *card = rtd->card;
++	struct glb_pool *glb_ptr;
++
++	glb_ptr = kzalloc(sizeof(struct glb_pool), GFP_KERNEL);
++	if (!glb_ptr)
++		return -ENOMEM;
++
++	card->drvdata = glb_ptr;
++	glb_ptr->dual_mode = 2;
++	glb_ptr->set_mode = 0;
++
++	mutex_init(&glb_ptr->lock);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++					207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++				ret);
++	}
++	return 0;
++}
++
++static void snd_allo_piano_gpio_mute(struct snd_soc_card *card)
++{
++	if (mute_gpio[0])
++		gpiod_set_value_cansleep(mute_gpio[0], P_MUTE);
++
++	if (mute_gpio[1])
++		gpiod_set_value_cansleep(mute_gpio[1], P_MUTE);
++}
++
++static void snd_allo_piano_gpio_unmute(struct snd_soc_card *card)
++{
++	if (mute_gpio[0])
++		gpiod_set_value_cansleep(mute_gpio[0], P_UNMUTE);
++
++	if (mute_gpio[1])
++		gpiod_set_value_cansleep(mute_gpio[1], P_UNMUTE);
++}
++
++static int snd_allo_piano_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
++{
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_soc_dai *codec_dai;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	if (dapm->dev != codec_dai->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
++			break;
++		/* UNMUTE DAC */
++		snd_allo_piano_gpio_unmute(card);
++		break;
++
++	case SND_SOC_BIAS_STANDBY:
++		if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
++			break;
++		/* MUTE DAC */
++		snd_allo_piano_gpio_mute(card);
++		break;
++
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++static int snd_allo_piano_dac_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_allo_piano_gpio_mute(card);
++
++	return 0;
++}
++
++static int snd_allo_piano_dac_hw_params(
++		struct snd_pcm_substream *substream,
++		struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	unsigned int rate = params_rate(params);
++	struct snd_soc_card *card = rtd->card;
++	struct glb_pool *glb_ptr = card->drvdata;
++	int ret = 0, val = 0, dac;
++
++	for (dac = 0; (glb_mclk && dac < 2); dac++) {
++		/* Configure the PLL clock reference for both the Codecs */
++		val = snd_soc_component_read(asoc_rtd_to_codec(rtd, dac)->component,
++					PCM512x_RATE_DET_4);
++
++		if (val & 0x40) {
++			snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
++					PCM512x_PLL_REF,
++					PCM512x_SREF_BCK);
++
++			dev_info(asoc_rtd_to_codec(rtd, dac)->component->dev,
++				"Setting BCLK as input clock & Enable PLL\n");
++		} else {
++			snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
++					PCM512x_PLL_EN,
++					0x00);
++
++			snd_soc_component_write(asoc_rtd_to_codec(rtd, dac)->component,
++					PCM512x_PLL_REF,
++					PCM512x_SREF_SCK);
++
++			dev_info(asoc_rtd_to_codec(rtd, dac)->component->dev,
++				"Setting SCLK as input clock & disabled PLL\n");
++		}
++	}
++
++	ret = snd_allo_piano_dsp_program(rtd, glb_ptr->set_mode, rate,
++						glb_ptr->set_lowpass);
++	if (ret < 0)
++		return ret;
++
++	return ret;
++}
++
++static int snd_allo_piano_dac_prepare(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++
++	snd_allo_piano_gpio_unmute(card);
++
++	return 0;
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_allo_piano_dac_ops = {
++	.startup = snd_allo_piano_dac_startup,
++	.hw_params = snd_allo_piano_dac_hw_params,
++	.prepare = snd_allo_piano_dac_prepare,
++};
++
++static struct snd_soc_dai_link_component allo_piano_2_1_codecs[] = {
++	{
++		.dai_name = "pcm512x-hifi",
++	},
++	{
++		.dai_name = "pcm512x-hifi",
++	},
++};
++
++SND_SOC_DAILINK_DEFS(allo_piano_dai_plus,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "pcm512x-hifi"),
++			   COMP_CODEC(NULL, "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
++	{
++		.name		= "PianoDACPlus",
++		.stream_name	= "PianoDACPlus",
++		.dai_fmt	= SND_SOC_DAIFMT_I2S |
++				SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++		.ops		= &snd_allo_piano_dac_ops,
++		.init		= snd_allo_piano_dac_init,
++		SND_SOC_DAILINK_REG(allo_piano_dai_plus),
++	},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_piano_dac = {
++	.name = "PianoDACPlus",
++	.owner = THIS_MODULE,
++	.dai_link = snd_allo_piano_dac_dai,
++	.num_links = ARRAY_SIZE(snd_allo_piano_dac_dai),
++	.controls = allo_piano_controls,
++	.num_controls = ARRAY_SIZE(allo_piano_controls),
++};
++
++static int snd_allo_piano_dac_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_allo_piano_dac;
++	int ret = 0, i = 0;
++
++	card->dev = &pdev->dev;
++	platform_set_drvdata(pdev, &snd_allo_piano_dac);
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_allo_piano_dac_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++						"i2s-controller", 0);
++		if (i2s_node) {
++			for (i = 0; i < card->num_links; i++) {
++				dai->cpus->dai_name = NULL;
++				dai->cpus->of_node = i2s_node;
++				dai->platforms->name = NULL;
++				dai->platforms->of_node = i2s_node;
++			}
++		}
++		digital_gain_0db_limit =
++			!of_property_read_bool(pdev->dev.of_node,
++						"allo,24db_digital_gain");
++
++		glb_mclk = of_property_read_bool(pdev->dev.of_node,
++						"allo,glb_mclk");
++
++		allo_piano_2_1_codecs[0].of_node =
++			of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
++		if (!allo_piano_2_1_codecs[0].of_node) {
++			dev_err(&pdev->dev,
++				"Property 'audio-codec' missing or invalid\n");
++			return -EINVAL;
++		}
++
++		allo_piano_2_1_codecs[1].of_node =
++			of_parse_phandle(pdev->dev.of_node, "audio-codec", 1);
++		if (!allo_piano_2_1_codecs[1].of_node) {
++			dev_err(&pdev->dev,
++				"Property 'audio-codec' missing or invalid\n");
++			return -EINVAL;
++		}
++
++		mute_gpio[0] = devm_gpiod_get_optional(&pdev->dev, "mute1",
++							GPIOD_OUT_LOW);
++		if (IS_ERR(mute_gpio[0])) {
++			ret = PTR_ERR(mute_gpio[0]);
++			dev_err(&pdev->dev,
++				"failed to get mute1 gpio6: %d\n", ret);
++			return ret;
++		}
++
++		mute_gpio[1] = devm_gpiod_get_optional(&pdev->dev, "mute2",
++							GPIOD_OUT_LOW);
++		if (IS_ERR(mute_gpio[1])) {
++			ret = PTR_ERR(mute_gpio[1]);
++			dev_err(&pdev->dev,
++				"failed to get mute2 gpio25: %d\n", ret);
++			return ret;
++		}
++
++		if (mute_gpio[0] && mute_gpio[1])
++			snd_allo_piano_dac.set_bias_level =
++				snd_allo_piano_set_bias_level;
++
++		ret = snd_soc_register_card(&snd_allo_piano_dac);
++		if (ret < 0) {
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++			return ret;
++		}
++
++		if ((mute_gpio[0]) && (mute_gpio[1]))
++			snd_allo_piano_gpio_mute(&snd_allo_piano_dac);
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int snd_allo_piano_dac_remove(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = platform_get_drvdata(pdev);
++
++	kfree(&card->drvdata);
++	snd_allo_piano_gpio_mute(&snd_allo_piano_dac);
++	return snd_soc_unregister_card(&snd_allo_piano_dac);
++}
++
++static const struct of_device_id snd_allo_piano_dac_of_match[] = {
++	{ .compatible = "allo,piano-dac-plus", },
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match);
++
++static struct platform_driver snd_allo_piano_dac_driver = {
++	.driver = {
++		.name = "snd-allo-piano-dac-plus",
++		.owner = THIS_MODULE,
++		.of_match_table = snd_allo_piano_dac_of_match,
++	},
++	.probe = snd_allo_piano_dac_probe,
++	.remove = snd_allo_piano_dac_remove,
++};
++
++module_platform_driver(snd_allo_piano_dac_driver);
++
++MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC Plus");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/allo-piano-dac.c
+@@ -0,0 +1,122 @@
++/*
++ * ALSA ASoC Machine Driver for Allo Piano DAC
++ *
++ * Author:	Baswaraj K <jaikumar@cem-solutions.net>
++ *		Copyright 2016
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++					   207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++				 ret);
++	}
++
++	return 0;
++}
++
++SND_SOC_DAILINK_DEFS(allo_piano_dai,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
++{
++	.name		= "Piano DAC",
++	.stream_name	= "Piano DAC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_allo_piano_dac_init,
++	SND_SOC_DAILINK_REG(allo_piano_dai),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_piano_dac = {
++	.name         = "PianoDAC",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_allo_piano_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_allo_piano_dac_dai),
++};
++
++static int snd_allo_piano_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_allo_piano_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_allo_piano_dac_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "allo,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_allo_piano_dac);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_allo_piano_dac_of_match[] = {
++	{ .compatible = "allo,piano-dac", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match);
++
++static struct platform_driver snd_allo_piano_dac_driver = {
++	.driver = {
++		.name   = "snd-allo-piano-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_allo_piano_dac_of_match,
++	},
++	.probe          = snd_allo_piano_dac_probe,
++};
++
++module_platform_driver(snd_allo_piano_dac_driver);
++
++MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/audioinjector-isolated-soundcard.c
+@@ -0,0 +1,183 @@
++/*
++ * ASoC Driver for AudioInjector.net isolated soundcard
++ *
++ *  Created on: 20-February-2020
++ *      Author: flatmax@flatmax.org
++ *              based on audioinjector-octo-soundcard.c
++ *
++ * Copyright (C) 2020 Flatmax Pty. Ltd.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/gpio/consumer.h>
++
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/control.h>
++
++static struct gpio_desc *mute_gpio;
++
++static const unsigned int audioinjector_isolated_rates[] = {
++	192000, 96000, 48000, 32000, 24000, 16000, 8000
++};
++
++static struct snd_pcm_hw_constraint_list audioinjector_isolated_constraints = {
++	.list = audioinjector_isolated_rates,
++	.count = ARRAY_SIZE(audioinjector_isolated_rates),
++};
++
++static int audioinjector_isolated_dai_init(struct snd_soc_pcm_runtime *rtd)
++{
++	int ret=snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 24576000, 0);
++	if (ret)
++		return ret;
++
++	return snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 64);
++}
++
++static int audioinjector_isolated_startup(struct snd_pcm_substream *substream)
++{
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE, &audioinjector_isolated_constraints);
++
++	return 0;
++}
++
++static int audioinjector_isolated_trigger(struct snd_pcm_substream *substream,
++								int cmd){
++
++	switch (cmd) {
++	case SNDRV_PCM_TRIGGER_STOP:
++	case SNDRV_PCM_TRIGGER_SUSPEND:
++	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++		gpiod_set_value(mute_gpio, 0);
++		break;
++	case SNDRV_PCM_TRIGGER_START:
++	case SNDRV_PCM_TRIGGER_RESUME:
++	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++		gpiod_set_value(mute_gpio, 1);
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static struct snd_soc_ops audioinjector_isolated_ops = {
++	.startup	= audioinjector_isolated_startup,
++	.trigger = audioinjector_isolated_trigger,
++};
++
++SND_SOC_DAILINK_DEFS(audioinjector_isolated,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("cs4271.1-0010", "cs4271-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link audioinjector_isolated_dai[] = {
++	{
++		.name = "AudioInjector ISO",
++		.stream_name = "AI-HIFI",
++		.ops = &audioinjector_isolated_ops,
++		.init = audioinjector_isolated_dai_init,
++		.symmetric_rates = 1,
++		.symmetric_channels = 1,
++		.dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF,
++		SND_SOC_DAILINK_REG(audioinjector_isolated),
++	}
++};
++
++static const struct snd_soc_dapm_widget audioinjector_isolated_widgets[] = {
++	SND_SOC_DAPM_OUTPUT("OUTPUTS"),
++	SND_SOC_DAPM_INPUT("INPUTS"),
++};
++
++static const struct snd_soc_dapm_route audioinjector_isolated_route[] = {
++	/* Balanced outputs */
++	{"OUTPUTS", NULL, "AOUTA+"},
++	{"OUTPUTS", NULL, "AOUTA-"},
++	{"OUTPUTS", NULL, "AOUTB+"},
++	{"OUTPUTS", NULL, "AOUTB-"},
++
++	/* Balanced inputs */
++	{"AINA", NULL, "INPUTS"},
++	{"AINB", NULL, "INPUTS"},
++};
++
++static struct snd_soc_card snd_soc_audioinjector_isolated = {
++	.name = "audioinjector-isolated-soundcard",
++	.dai_link = audioinjector_isolated_dai,
++	.num_links = ARRAY_SIZE(audioinjector_isolated_dai),
++
++	.dapm_widgets = audioinjector_isolated_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(audioinjector_isolated_widgets),
++	.dapm_routes = audioinjector_isolated_route,
++	.num_dapm_routes = ARRAY_SIZE(audioinjector_isolated_route),
++};
++
++static int audioinjector_isolated_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_soc_audioinjector_isolated;
++	int ret;
++
++	card->dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct snd_soc_dai_link *dai = &audioinjector_isolated_dai[0];
++		struct device_node *i2s_node =
++					of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		} else {
++				dev_err(&pdev->dev,
++				"i2s-controller missing or invalid in DT\n");
++				return -EINVAL;
++		}
++
++		mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW);
++		if (IS_ERR(mute_gpio)){
++			dev_err(&pdev->dev, "mute gpio not found in dt overlay\n");
++			return PTR_ERR(mute_gpio);
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, card);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
++	return ret;
++}
++
++static const struct of_device_id audioinjector_isolated_of_match[] = {
++	{ .compatible = "ai,audioinjector-isolated-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audioinjector_isolated_of_match);
++
++static struct platform_driver audioinjector_isolated_driver = {
++	.driver	= {
++		.name			= "audioinjector-isolated",
++		.owner			= THIS_MODULE,
++		.of_match_table = audioinjector_isolated_of_match,
++	},
++	.probe	= audioinjector_isolated_probe,
++};
++
++module_platform_driver(audioinjector_isolated_driver);
++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
++MODULE_DESCRIPTION("AudioInjector.net isolated Soundcard");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audioinjector-isolated-soundcard");
+--- /dev/null
++++ b/sound/soc/bcm/audioinjector-octo-soundcard.c
+@@ -0,0 +1,346 @@
++/*
++ * ASoC Driver for AudioInjector Pi octo channel soundcard (hat)
++ *
++ *  Created on: 27-October-2016
++ *      Author: flatmax@flatmax.org
++ *              based on audioinjector-pi-soundcard.c
++ *
++ * Copyright (C) 2016 Flatmax Pty. Ltd.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/gpio/consumer.h>
++
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/control.h>
++
++static struct gpio_descs *mult_gpios;
++static struct gpio_desc *codec_rst_gpio;
++static unsigned int audioinjector_octo_rate;
++static bool non_stop_clocks;
++
++static const unsigned int audioinjector_octo_rates[] = {
++	96000, 48000, 32000, 24000, 16000, 8000, 88200, 44100, 29400, 22050, 14700,
++};
++
++static struct snd_pcm_hw_constraint_list audioinjector_octo_constraints = {
++	.list = audioinjector_octo_rates,
++	.count = ARRAY_SIZE(audioinjector_octo_rates),
++};
++
++static int audioinjector_octo_dai_init(struct snd_soc_pcm_runtime *rtd)
++{
++	return snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 64);
++}
++
++static int audioinjector_octo_startup(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_min = 8;
++	asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_max = 8;
++	asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_min = 8;
++	asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_max = 8;
++	asoc_rtd_to_codec(rtd, 0)->driver->capture.channels_max = 8;
++
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&audioinjector_octo_constraints);
++
++	return 0;
++}
++
++static void audioinjector_octo_shutdown(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_min = 2;
++	asoc_rtd_to_cpu(rtd, 0)->driver->playback.channels_max = 2;
++	asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_min = 2;
++	asoc_rtd_to_cpu(rtd, 0)->driver->capture.channels_max = 2;
++	asoc_rtd_to_codec(rtd, 0)->driver->capture.channels_max = 6;
++}
++
++static int audioinjector_octo_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++
++	// set codec DAI configuration
++	int ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
++			SND_SOC_DAIFMT_CBS_CFS|SND_SOC_DAIFMT_DSP_A|
++			SND_SOC_DAIFMT_NB_NF);
++	if (ret < 0)
++		return ret;
++
++	// set cpu DAI configuration
++	ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
++			SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|
++			SND_SOC_DAIFMT_NB_NF);
++	if (ret < 0)
++		return ret;
++
++	audioinjector_octo_rate = params_rate(params);
++
++	// Set the correct sysclock for the codec
++	switch (audioinjector_octo_rate) {
++	case 96000:
++	case 48000:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000,
++									0);
++		break;
++	case 24000:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/2,
++									0);
++		break;
++	case 32000:
++	case 16000:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/3,
++									0);
++		break;
++	case 8000:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 49152000/6,
++									0);
++		break;
++	case 88200:
++	case 44100:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400,
++									0);
++		break;
++	case 22050:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400/2,
++									0);
++		break;
++	case 29400:
++	case 14700:
++		return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, 45185400/3,
++									0);
++		break;
++	default:
++		return -EINVAL;
++	}
++}
++
++static int audioinjector_octo_trigger(struct snd_pcm_substream *substream,
++								int cmd){
++	DECLARE_BITMAP(mult, 4);
++
++	memset(mult, 0, sizeof(mult));
++
++	switch (cmd) {
++	case SNDRV_PCM_TRIGGER_STOP:
++	case SNDRV_PCM_TRIGGER_SUSPEND:
++	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++		if (!non_stop_clocks)
++			break;
++		/* fall through */
++	case SNDRV_PCM_TRIGGER_START:
++	case SNDRV_PCM_TRIGGER_RESUME:
++	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++		switch (audioinjector_octo_rate) {
++		case 96000:
++			__assign_bit(3, mult, 1);
++			/* fall through */
++		case 88200:
++			__assign_bit(1, mult, 1);
++			__assign_bit(2, mult, 1);
++			break;
++		case 48000:
++			__assign_bit(3, mult, 1);
++			/* fall through */
++		case 44100:
++			__assign_bit(2, mult, 1);
++			break;
++		case 32000:
++			__assign_bit(3, mult, 1);
++			/* fall through */
++		case 29400:
++			__assign_bit(0, mult, 1);
++			__assign_bit(1, mult, 1);
++			break;
++		case 24000:
++			__assign_bit(3, mult, 1);
++			/* fall through */
++		case 22050:
++			__assign_bit(1, mult, 1);
++			break;
++		case 16000:
++			__assign_bit(3, mult, 1);
++			/* fall through */
++		case 14700:
++			__assign_bit(0, mult, 1);
++			break;
++		case 8000:
++			__assign_bit(3, mult, 1);
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	default:
++		return -EINVAL;
++	}
++	gpiod_set_array_value_cansleep(mult_gpios->ndescs, mult_gpios->desc,
++				       NULL, mult);
++
++	return 0;
++}
++
++static struct snd_soc_ops audioinjector_octo_ops = {
++	.startup	= audioinjector_octo_startup,
++	.shutdown	= audioinjector_octo_shutdown,
++	.hw_params = audioinjector_octo_hw_params,
++	.trigger = audioinjector_octo_trigger,
++};
++
++SND_SOC_DAILINK_DEFS(audioinjector_octo,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42448")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link audioinjector_octo_dai[] = {
++	{
++		.name = "AudioInjector Octo",
++		.stream_name = "AudioInject-HIFI",
++		.ops = &audioinjector_octo_ops,
++		.init = audioinjector_octo_dai_init,
++		.symmetric_rates = 1,
++		.symmetric_channels = 1,
++		SND_SOC_DAILINK_REG(audioinjector_octo),
++	},
++};
++
++static const struct snd_soc_dapm_widget audioinjector_octo_widgets[] = {
++	SND_SOC_DAPM_OUTPUT("OUTPUTS0"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS1"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS2"),
++	SND_SOC_DAPM_OUTPUT("OUTPUTS3"),
++	SND_SOC_DAPM_INPUT("INPUTS0"),
++	SND_SOC_DAPM_INPUT("INPUTS1"),
++	SND_SOC_DAPM_INPUT("INPUTS2"),
++};
++
++static const struct snd_soc_dapm_route audioinjector_octo_route[] = {
++	/* Balanced outputs */
++	{"OUTPUTS0", NULL, "AOUT1L"},
++	{"OUTPUTS0", NULL, "AOUT1R"},
++	{"OUTPUTS1", NULL, "AOUT2L"},
++	{"OUTPUTS1", NULL, "AOUT2R"},
++	{"OUTPUTS2", NULL, "AOUT3L"},
++	{"OUTPUTS2", NULL, "AOUT3R"},
++	{"OUTPUTS3", NULL, "AOUT4L"},
++	{"OUTPUTS3", NULL, "AOUT4R"},
++
++	/* Balanced inputs */
++	{"AIN1L", NULL, "INPUTS0"},
++	{"AIN1R", NULL, "INPUTS0"},
++	{"AIN2L", NULL, "INPUTS1"},
++	{"AIN2R", NULL, "INPUTS1"},
++	{"AIN3L", NULL, "INPUTS2"},
++	{"AIN3R", NULL, "INPUTS2"},
++};
++
++static struct snd_soc_card snd_soc_audioinjector_octo = {
++	.name = "audioinjector-octo-soundcard",
++	.dai_link = audioinjector_octo_dai,
++	.num_links = ARRAY_SIZE(audioinjector_octo_dai),
++
++	.dapm_widgets = audioinjector_octo_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(audioinjector_octo_widgets),
++	.dapm_routes = audioinjector_octo_route,
++	.num_dapm_routes = ARRAY_SIZE(audioinjector_octo_route),
++};
++
++static int audioinjector_octo_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_soc_audioinjector_octo;
++	int ret;
++
++	card->dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct snd_soc_dai_link *dai = &audioinjector_octo_dai[0];
++		struct device_node *i2s_node =
++					of_parse_phandle(pdev->dev.of_node,
++							"i2s-controller", 0);
++		struct device_node *codec_node =
++					of_parse_phandle(pdev->dev.of_node,
++								"codec", 0);
++
++		mult_gpios = devm_gpiod_get_array_optional(&pdev->dev, "mult",
++								GPIOD_OUT_LOW);
++		if (IS_ERR(mult_gpios))
++			return PTR_ERR(mult_gpios);
++
++		codec_rst_gpio = devm_gpiod_get_optional(&pdev->dev, "reset",
++								GPIOD_OUT_LOW);
++		if (IS_ERR(codec_rst_gpio))
++			return PTR_ERR(codec_rst_gpio);
++
++		non_stop_clocks = of_property_read_bool(pdev->dev.of_node, "non-stop-clocks");
++
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 1);
++		msleep(500);
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 0);
++		msleep(500);
++		if (codec_rst_gpio)
++			gpiod_set_value(codec_rst_gpio, 1);
++		msleep(500);
++
++		if (i2s_node && codec_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++			dai->codecs->name = NULL;
++			dai->codecs->of_node = codec_node;
++		} else
++			if (!i2s_node) {
++				dev_err(&pdev->dev,
++				"i2s-controller missing or invalid in DT\n");
++				return -EINVAL;
++			} else {
++				dev_err(&pdev->dev,
++				"Property 'codec' missing or invalid\n");
++				return -EINVAL;
++			}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, card);
++	if (ret != 0)
++		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
++	return ret;
++}
++
++static const struct of_device_id audioinjector_octo_of_match[] = {
++	{ .compatible = "ai,audioinjector-octo-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audioinjector_octo_of_match);
++
++static struct platform_driver audioinjector_octo_driver = {
++	.driver	= {
++		.name			= "audioinjector-octo",
++		.owner			= THIS_MODULE,
++		.of_match_table = audioinjector_octo_of_match,
++	},
++	.probe	= audioinjector_octo_probe,
++};
++
++module_platform_driver(audioinjector_octo_driver);
++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
++MODULE_DESCRIPTION("AudioInjector.net octo Soundcard");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audioinjector-octo-soundcard");
+--- /dev/null
++++ b/sound/soc/bcm/audioinjector-pi-soundcard.c
+@@ -0,0 +1,187 @@
++/*
++ * ASoC Driver for AudioInjector Pi add on soundcard
++ *
++ *  Created on: 13-May-2016
++ *      Author: flatmax@flatmax.org
++ *              based on code by  Cliff Cai <Cliff.Cai@analog.com> for the ssm2602 machine blackfin.
++ *              with help from Lars-Peter Clausen for simplifying the original code to use the dai_fmt field.
++ *		i2s_node code taken from the other sound/soc/bcm machine drivers.
++ *
++ * Copyright (C) 2016 Flatmax Pty. Ltd.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/types.h>
++
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/control.h>
++
++#include "../codecs/wm8731.h"
++
++static const unsigned int bcm2835_rates_12000000[] = {
++	8000, 16000, 32000, 44100, 48000, 96000, 88200,
++};
++
++static struct snd_pcm_hw_constraint_list bcm2835_constraints_12000000 = {
++	.list = bcm2835_rates_12000000,
++	.count = ARRAY_SIZE(bcm2835_rates_12000000),
++};
++
++static int snd_audioinjector_pi_soundcard_startup(struct snd_pcm_substream *substream)
++{
++	/* Setup constraints, because there is a 12 MHz XTAL on the board */
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&bcm2835_constraints_12000000);
++	return 0;
++}
++
++static int snd_audioinjector_pi_soundcard_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	switch (params_rate(params)){
++		case 8000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 1);
++		case 16000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 750);
++		case 32000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 375);
++		case 44100:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 272);
++		case 48000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 250);
++		case 88200:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 136);
++		case 96000:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
++		default:
++			return snd_soc_dai_set_bclk_ratio(cpu_dai, 125);
++	}
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_audioinjector_pi_soundcard_ops = {
++	.startup = snd_audioinjector_pi_soundcard_startup,
++	.hw_params = snd_audioinjector_pi_soundcard_hw_params,
++};
++
++static int audioinjector_pi_soundcard_dai_init(struct snd_soc_pcm_runtime *rtd)
++{
++	return snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), WM8731_SYSCLK_XTAL, 12000000, SND_SOC_CLOCK_IN);
++}
++
++SND_SOC_DAILINK_DEFS(audioinjector_pi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.1-001a", "wm8731-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
++
++static struct snd_soc_dai_link audioinjector_pi_soundcard_dai[] = {
++	{
++		.name = "AudioInjector audio",
++		.stream_name = "AudioInjector audio",
++		.ops = &snd_audioinjector_pi_soundcard_ops,
++		.init = audioinjector_pi_soundcard_dai_init,
++		.dai_fmt = SND_SOC_DAIFMT_CBM_CFM|SND_SOC_DAIFMT_I2S|SND_SOC_DAIFMT_NB_NF,
++		SND_SOC_DAILINK_REG(audioinjector_pi),
++	},
++};
++
++static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
++	SND_SOC_DAPM_HP("Headphone Jack", NULL),
++	SND_SOC_DAPM_SPK("Ext Spk", NULL),
++	SND_SOC_DAPM_LINE("Line In Jacks", NULL),
++	SND_SOC_DAPM_MIC("Microphone", NULL),
++};
++
++static const struct snd_soc_dapm_route audioinjector_audio_map[] = {
++	/* headphone connected to LHPOUT, RHPOUT */
++	{"Headphone Jack", NULL, "LHPOUT"},
++	{"Headphone Jack", NULL, "RHPOUT"},
++
++	/* speaker connected to LOUT, ROUT */
++	{"Ext Spk", NULL, "ROUT"},
++	{"Ext Spk", NULL, "LOUT"},
++
++	/* line inputs */
++	{"Line In Jacks", NULL, "Line Input"},
++
++	/* mic is connected to Mic Jack, with WM8731 Mic Bias */
++	{"Microphone", NULL, "Mic Bias"},
++};
++
++static struct snd_soc_card snd_soc_audioinjector = {
++	.name = "audioinjector-pi-soundcard",
++	.dai_link = audioinjector_pi_soundcard_dai,
++	.num_links = ARRAY_SIZE(audioinjector_pi_soundcard_dai),
++
++	.dapm_widgets = wm8731_dapm_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
++	.dapm_routes = audioinjector_audio_map,
++	.num_dapm_routes = ARRAY_SIZE(audioinjector_audio_map),
++};
++
++static int audioinjector_pi_soundcard_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_soc_audioinjector;
++	int ret;
++	
++	card->dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct snd_soc_dai_link *dai = &audioinjector_pi_soundcard_dai[0];
++		struct device_node *i2s_node = of_parse_phandle(pdev->dev.of_node,
++								"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		} else
++			if (!dai->cpus->of_node) {
++				dev_err(&pdev->dev, "Property 'i2s-controller' missing or invalid\n");
++				return -EINVAL;
++			}
++	}
++
++	if ((ret = devm_snd_soc_register_card(&pdev->dev, card))) {
++		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
++	}
++	return ret;
++}
++
++static const struct of_device_id audioinjector_pi_soundcard_of_match[] = {
++	{ .compatible = "ai,audioinjector-pi-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audioinjector_pi_soundcard_of_match);
++
++static struct platform_driver audioinjector_pi_soundcard_driver = {
++       .driver         = {
++		.name   = "audioinjector-stereo",
++		.owner  = THIS_MODULE,
++		.of_match_table = audioinjector_pi_soundcard_of_match,
++       },
++       .probe          = audioinjector_pi_soundcard_probe,
++};
++
++module_platform_driver(audioinjector_pi_soundcard_driver);
++MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
++MODULE_DESCRIPTION("AudioInjector.net Pi Soundcard");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audioinjector-pi-soundcard");
++
+--- /dev/null
++++ b/sound/soc/bcm/audiosense-pi.c
+@@ -0,0 +1,248 @@
++/*
++ * ASoC Driver for AudioSense add on soundcard
++ * Author:
++ *	Bhargav A K <anur.bhargav@gmail.com>
++ *	Copyright 2017
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/i2c.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <sound/control.h>
++
++#include <sound/tlv320aic32x4.h>
++#include "../codecs/tlv320aic32x4.h"
++
++#define AIC32X4_SYSCLK_XTAL	0x00
++
++/*
++ * Setup Codec Sample Rates and Channels
++ * Supported Rates:
++ *	8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000, 88200, 96000,
++ */
++static const unsigned int audiosense_pi_rate[] = {
++	48000,
++};
++
++static struct snd_pcm_hw_constraint_list audiosense_constraints_rates = {
++	.list = audiosense_pi_rate,
++	.count = ARRAY_SIZE(audiosense_pi_rate),
++};
++
++static const unsigned int audiosense_pi_channels[] = {
++	2,
++};
++
++static struct snd_pcm_hw_constraint_list audiosense_constraints_ch = {
++	.count = ARRAY_SIZE(audiosense_pi_channels),
++	.list = audiosense_pi_channels,
++	.mask = 0,
++};
++
++/* Setup DAPM widgets and paths */
++static const struct snd_soc_dapm_widget audiosense_pi_dapm_widgets[] = {
++	SND_SOC_DAPM_HP("Headphone Jack", NULL),
++	SND_SOC_DAPM_LINE("Line Out", NULL),
++	SND_SOC_DAPM_LINE("Line In", NULL),
++	SND_SOC_DAPM_INPUT("CM_L"),
++	SND_SOC_DAPM_INPUT("CM_R"),
++};
++
++static const struct snd_soc_dapm_route audiosense_pi_audio_map[] = {
++	/* Line Inputs are connected to
++	 * (IN1_L | IN1_R)
++	 * (IN2_L | IN2_R)
++	 * (IN3_L | IN3_R)
++	 */
++	{"IN1_L", NULL, "Line In"},
++	{"IN1_R", NULL, "Line In"},
++	{"IN2_L", NULL, "Line In"},
++	{"IN2_R", NULL, "Line In"},
++	{"IN3_L", NULL, "Line In"},
++	{"IN3_R", NULL, "Line In"},
++
++	/* Mic is connected to IN2_L and IN2_R */
++	{"Left ADC", NULL, "Mic Bias"},
++	{"Right ADC", NULL, "Mic Bias"},
++
++	/* Headphone connected to HPL, HPR */
++	{"Headphone Jack", NULL, "HPL"},
++	{"Headphone Jack", NULL, "HPR"},
++
++	/* Speakers connected to LOL and LOR */
++	{"Line Out", NULL, "LOL"},
++	{"Line Out", NULL, "LOR"},
++};
++
++static int audiosense_pi_card_init(struct snd_soc_pcm_runtime *rtd)
++{
++	/* TODO: init of the codec specific dapm data, ignore suspend/resume */
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_soc_component_update_bits(component, AIC32X4_MICBIAS, 0x78,
++				      AIC32X4_MICBIAS_LDOIN |
++				      AIC32X4_MICBIAS_2075V);
++	snd_soc_component_update_bits(component, AIC32X4_PWRCFG, 0x08,
++				      AIC32X4_AVDDWEAKDISABLE);
++	snd_soc_component_update_bits(component, AIC32X4_LDOCTL, 0x01,
++				      AIC32X4_LDOCTLEN);
++
++	return 0;
++}
++
++static int audiosense_pi_card_hw_params(
++		struct snd_pcm_substream *substream,
++		struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	/* Set the codec system clock, there is a 12 MHz XTAL on the board */
++	ret = snd_soc_dai_set_sysclk(codec_dai, AIC32X4_SYSCLK_XTAL,
++				     12000000, SND_SOC_CLOCK_IN);
++	if (ret) {
++		dev_err(rtd->card->dev,
++			"could not set codec driver clock params\n");
++		return ret;
++	}
++	return 0;
++}
++
++static int audiosense_pi_card_startup(struct snd_pcm_substream *substream)
++{
++	struct snd_pcm_runtime *runtime = substream->runtime;
++
++	/*
++	 * Set codec to 48Khz Sampling, Stereo I/O and 16 bit audio
++	 */
++	runtime->hw.channels_max = 2;
++	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
++				   &audiosense_constraints_ch);
++
++	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
++	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
++
++
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				   SNDRV_PCM_HW_PARAM_RATE,
++				   &audiosense_constraints_rates);
++	return 0;
++}
++
++static struct snd_soc_ops audiosense_pi_card_ops = {
++	.startup = audiosense_pi_card_startup,
++	.hw_params = audiosense_pi_card_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(audiosense_pi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic32x4.1-0018", "tlv320aic32x4-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link audiosense_pi_card_dai[] = {
++	{
++		.name           = "TLV320AIC3204 Audio",
++		.stream_name    = "TLV320AIC3204 Hifi Audio",
++		.dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++			SND_SOC_DAIFMT_CBM_CFM,
++		.ops            = &audiosense_pi_card_ops,
++		.init           = audiosense_pi_card_init,
++		SND_SOC_DAILINK_REG(audiosense_pi),
++	},
++};
++
++static struct snd_soc_card audiosense_pi_card = {
++	.name		= "audiosense-pi",
++	.driver_name	= "audiosense-pi",
++	.dai_link	= audiosense_pi_card_dai,
++	.owner		= THIS_MODULE,
++	.num_links	= ARRAY_SIZE(audiosense_pi_card_dai),
++	.dapm_widgets	= audiosense_pi_dapm_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(audiosense_pi_dapm_widgets),
++	.dapm_routes	= audiosense_pi_audio_map,
++	.num_dapm_routes = ARRAY_SIZE(audiosense_pi_audio_map),
++};
++
++static int audiosense_pi_card_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct snd_soc_card *card = &audiosense_pi_card;
++	struct snd_soc_dai_link *dai = &audiosense_pi_card_dai[0];
++	struct device_node *i2s_node = pdev->dev.of_node;
++
++	card->dev = &pdev->dev;
++
++	if (!dai) {
++		dev_err(&pdev->dev, "DAI not found. Missing or Invalid\n");
++		return -EINVAL;
++	}
++
++	i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller", 0);
++	if (!i2s_node) {
++		dev_err(&pdev->dev,
++			"Property 'i2s-controller' missing or invalid\n");
++		return -EINVAL;
++	}
++
++	dai->cpus->dai_name = NULL;
++	dai->cpus->of_node = i2s_node;
++	dai->platforms->name = NULL;
++	dai->platforms->of_node = i2s_node;
++
++	of_node_put(i2s_node);
++
++	ret = snd_soc_register_card(card);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static int audiosense_pi_card_remove(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = platform_get_drvdata(pdev);
++
++	return snd_soc_unregister_card(card);
++
++}
++
++static const struct of_device_id audiosense_pi_card_of_match[] = {
++	{ .compatible = "as,audiosense-pi", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, audiosense_pi_card_of_match);
++
++static struct platform_driver audiosense_pi_card_driver = {
++	.driver = {
++		.name = "audiosense-snd-card",
++		.owner = THIS_MODULE,
++		.of_match_table = audiosense_pi_card_of_match,
++	},
++	.probe = audiosense_pi_card_probe,
++	.remove = audiosense_pi_card_remove,
++};
++
++module_platform_driver(audiosense_pi_card_driver);
++
++MODULE_AUTHOR("Bhargav AK <anur.bhargav@gmail.com>");
++MODULE_DESCRIPTION("ASoC Driver for TLV320AIC3204 Audio");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:audiosense-pi");
++
+--- /dev/null
++++ b/sound/soc/bcm/digidac1-soundcard.c
+@@ -0,0 +1,421 @@
++/*
++ * ASoC Driver for RRA DigiDAC1
++ * Copyright 2016
++ * Author: José M. Tasende <vintage@redrocksaudio.es>
++ * based on the HifiBerry DAC driver by Florian Meier <florian.meier@koalo.de>
++ * and the Wolfson card driver by Nikesh Oswal, <Nikesh.Oswal@wolfsonmicro.com>
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/i2c.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <sound/soc-dapm.h>
++#include <sound/tlv.h>
++#include <linux/regulator/consumer.h>
++
++#include "../codecs/wm8804.h"
++#include "../codecs/wm8741.h"
++
++#define WM8741_NUM_SUPPLIES 2
++
++/* codec private data */
++struct wm8741_priv {
++	struct wm8741_platform_data pdata;
++	struct regmap *regmap;
++	struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES];
++	unsigned int sysclk;
++	const struct snd_pcm_hw_constraint_list *sysclk_constraints;
++};
++
++static int samplerate = 44100;
++
++/* New Alsa Controls not exposed by original wm8741 codec driver	*/
++/* in actual driver the att. adjustment is wrong because		*/
++/* this DAC has a coarse attenuation register with 4dB steps		*/
++/* and a fine level register with 0.125dB steps				*/
++/* each register has 32 steps so combining both we have	1024 steps	*/
++/* of 0.125 dB.								*/
++/* The original level controls from driver are removed at startup	*/
++/* and replaced by the corrected ones.					*/
++/* The same wm8741 driver can be used for wm8741 and wm8742 devices	*/
++
++static const DECLARE_TLV_DB_SCALE(dac_tlv_fine, 0, 13, 0);
++static const DECLARE_TLV_DB_SCALE(dac_tlv_coarse, -12700, 400, 1);
++static const char *w8741_dither[4] = {"Off", "RPDF", "TPDF", "HPDF"};
++static const char *w8741_filter[5] = {
++		"Type 1", "Type 2", "Type 3", "Type 4", "Type 5"};
++static const char *w8741_switch[2] = {"Off", "On"};
++static const struct soc_enum w8741_enum[] = {
++SOC_ENUM_SINGLE(WM8741_MODE_CONTROL_2, 0, 4, w8741_dither),/* dithering type */
++SOC_ENUM_SINGLE(WM8741_FILTER_CONTROL, 0, 5, w8741_filter),/* filter type */
++SOC_ENUM_SINGLE(WM8741_FORMAT_CONTROL, 6, 2, w8741_switch),/* phase invert */
++SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 0, 2, w8741_switch),/* volume ramp */
++SOC_ENUM_SINGLE(WM8741_VOLUME_CONTROL, 3, 2, w8741_switch),/* soft mute */
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_stereo[] = {
++SOC_DOUBLE_R_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
++		WM8741_DACRLSB_ATTENUATION, 0, 31, 1, dac_tlv_fine),
++SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
++		WM8741_DACRMSB_ATTENUATION, 0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_mono_left[] = {
++SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACLLSB_ATTENUATION,
++		0, 31, 0, dac_tlv_fine),
++SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACLMSB_ATTENUATION,
++		0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static const struct snd_kcontrol_new w8741_snd_controls_mono_right[] = {
++SOC_SINGLE_TLV("DAC Fine Playback Volume", WM8741_DACRLSB_ATTENUATION,
++	0, 31, 0, dac_tlv_fine),
++SOC_SINGLE_TLV("Digital Playback Volume", WM8741_DACRMSB_ATTENUATION,
++	0, 31, 1, dac_tlv_coarse),
++SOC_ENUM("DAC Dither", w8741_enum[0]),
++SOC_ENUM("DAC Digital Filter", w8741_enum[1]),
++SOC_ENUM("DAC Phase Invert", w8741_enum[2]),
++SOC_ENUM("DAC Volume Ramp", w8741_enum[3]),
++SOC_ENUM("DAC Soft Mute", w8741_enum[4]),
++};
++
++static int w8741_add_controls(struct snd_soc_component *component)
++{
++	struct wm8741_priv *wm8741 = snd_soc_component_get_drvdata(component);
++
++	switch (wm8741->pdata.diff_mode) {
++	case WM8741_DIFF_MODE_STEREO:
++	case WM8741_DIFF_MODE_STEREO_REVERSED:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_stereo,
++				ARRAY_SIZE(w8741_snd_controls_stereo));
++		break;
++	case WM8741_DIFF_MODE_MONO_LEFT:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_mono_left,
++				ARRAY_SIZE(w8741_snd_controls_mono_left));
++		break;
++	case WM8741_DIFF_MODE_MONO_RIGHT:
++		snd_soc_add_component_controls(component,
++				w8741_snd_controls_mono_right,
++				ARRAY_SIZE(w8741_snd_controls_mono_right));
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int digidac1_soundcard_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++	struct snd_card *sound_card = card->snd_card;
++	struct snd_kcontrol *kctl;
++	int ret;
++
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_init: couldn't get wm8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
++	ret = w8741_add_controls(wm8741_component);
++	if (ret < 0)
++		dev_warn(card->dev, "Failed to add new wm8741 controls: %d\n",
++		ret);
++
++	/* enable TX output */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
++
++	kctl = snd_soc_card_get_kcontrol(card,
++		"Playback Volume");
++	if (kctl) {
++		kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
++		snd_ctl_remove(sound_card, kctl);
++		}
++	kctl = snd_soc_card_get_kcontrol(card,
++		"Fine Playback Volume");
++	if (kctl) {
++		kctl->vd[0].access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
++		snd_ctl_remove(sound_card, kctl);
++		}
++	return 0;
++}
++
++static int digidac1_soundcard_startup(struct snd_pcm_substream *substream)
++{
++	/* turn on wm8804 digital output */
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x00);
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_startup: couldn't get WM8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
++
++	/* latch wm8741 level */
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACLLSB_ATTENUATION,
++		WM8741_UPDATELL, WM8741_UPDATELL);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACLMSB_ATTENUATION,
++		WM8741_UPDATELM, WM8741_UPDATELM);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACRLSB_ATTENUATION,
++		WM8741_UPDATERL, WM8741_UPDATERL);
++	snd_soc_component_update_bits(wm8741_component, WM8741_DACRMSB_ATTENUATION,
++		WM8741_UPDATERM, WM8741_UPDATERM);
++
++	return 0;
++}
++
++static void digidac1_soundcard_shutdown(struct snd_pcm_substream *substream)
++{
++	/* turn off wm8804 digital output */
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x3c);
++}
++
++static int digidac1_soundcard_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_pcm_runtime *wm8741_rtd;
++	struct snd_soc_component *wm8741_component;
++
++	int sysclk = 27000000;
++	long mclk_freq = 0;
++	int mclk_div = 1;
++	int sampling_freq = 1;
++	int ret;
++
++	wm8741_rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
++	if (!wm8741_rtd) {
++		dev_warn(card->dev, "digidac1_soundcard_hw_params: couldn't get WM8741 rtd\n");
++		return -EFAULT;
++	}
++	wm8741_component = asoc_rtd_to_codec(wm8741_rtd, 0)->component;
++	samplerate = params_rate(params);
++
++	if (samplerate <= 96000) {
++		mclk_freq = samplerate*256;
++		mclk_div = WM8804_MCLKDIV_256FS;
++	} else {
++		mclk_freq = samplerate*128;
++		mclk_div = WM8804_MCLKDIV_128FS;
++		}
++
++	switch (samplerate) {
++	case 32000:
++		sampling_freq = 0x03;
++		break;
++	case 44100:
++		sampling_freq = 0x00;
++		break;
++	case 48000:
++		sampling_freq = 0x02;
++		break;
++	case 88200:
++		sampling_freq = 0x08;
++		break;
++	case 96000:
++		sampling_freq = 0x0a;
++		break;
++	case 176400:
++		sampling_freq = 0x0c;
++		break;
++	case 192000:
++		sampling_freq = 0x0e;
++		break;
++	default:
++		dev_err(card->dev,
++		"Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++		samplerate);
++	}
++
++	snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
++	snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
++
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++		sysclk, SND_SOC_CLOCK_OUT);
++	if (ret < 0) {
++		dev_err(card->dev,
++		"Failed to set WM8804 SYSCLK: %d\n", ret);
++		return ret;
++	}
++	/* Enable wm8804 TX output */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
++
++	/* wm8804 Power on */
++	snd_soc_component_update_bits(component, WM8804_PWRDN, 0x9, 0);
++
++	/* wm8804 set sampling frequency status bits */
++	snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f, sampling_freq);
++
++	/* Now update wm8741 registers for the correct oversampling */
++	if (samplerate <= 48000)
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x00);
++	else if (samplerate <= 96000)
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x20);
++	else
++		snd_soc_component_update_bits(wm8741_component, WM8741_MODE_CONTROL_1,
++		 WM8741_OSR_MASK, 0x40);
++
++	/* wm8741 bit size */
++	switch (params_width(params)) {
++	case 16:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x00);
++		break;
++	case 20:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x01);
++		break;
++	case 24:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x02);
++		break;
++	case 32:
++		snd_soc_component_update_bits(wm8741_component, WM8741_FORMAT_CONTROL,
++		 WM8741_IWL_MASK, 0x03);
++		break;
++	default:
++		dev_dbg(card->dev, "wm8741_hw_params:    Unsupported bit size param = %d",
++			params_width(params));
++		return -EINVAL;
++	}
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++/* machine stream operations */
++static struct snd_soc_ops digidac1_soundcard_ops = {
++	.hw_params	= digidac1_soundcard_hw_params,
++	.startup	= digidac1_soundcard_startup,
++	.shutdown	= digidac1_soundcard_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(digidac1,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("wm8804.1-003b", "wm8804-spdif")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
++
++SND_SOC_DAILINK_DEFS(digidac11,
++	DAILINK_COMP_ARRAY(COMP_CPU("wm8804-spdif")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("wm8741.1-001a", "wm8741")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link digidac1_soundcard_dai[] = {
++	{
++	.name		= "RRA DigiDAC1",
++	.stream_name	= "RRA DigiDAC1 HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBM_CFM,
++	.ops		= &digidac1_soundcard_ops,
++	.init		= digidac1_soundcard_init,
++	SND_SOC_DAILINK_REG(digidac1),
++	},
++	{
++	.name		= "RRA DigiDAC11",
++	.stream_name	= "RRA DigiDAC11 HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S
++			| SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBS_CFS,
++	SND_SOC_DAILINK_REG(digidac11),
++	},
++};
++
++/* audio machine driver */
++static struct snd_soc_card digidac1_soundcard = {
++	.name		= "digidac1-soundcard",
++	.owner		= THIS_MODULE,
++	.dai_link	= digidac1_soundcard_dai,
++	.num_links	= ARRAY_SIZE(digidac1_soundcard_dai),
++};
++
++static int digidac1_soundcard_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	digidac1_soundcard.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &digidac1_soundcard_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &digidac1_soundcard);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id digidac1_soundcard_of_match[] = {
++	{ .compatible = "rra,digidac1-soundcard", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, digidac1_soundcard_of_match);
++
++static struct platform_driver digidac1_soundcard_driver = {
++	.driver = {
++			.name		= "digidac1-audio",
++			.owner		= THIS_MODULE,
++			.of_match_table	= digidac1_soundcard_of_match,
++	},
++	.probe		= digidac1_soundcard_probe,
++};
++
++module_platform_driver(digidac1_soundcard_driver);
++
++MODULE_AUTHOR("José M. Tasende <vintage@redrocksaudio.es>");
++MODULE_DESCRIPTION("ASoC Driver for RRA DigiDAC1");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco-v2.c
+@@ -0,0 +1,117 @@
++/*
++ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP
++ *
++ * Author:      Miquel Blauw <info@dionaudio.nl>
++ *              Copyright 2017
++ *
++ * Based on the software of the RPi-DAC writen by Florian Meier
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++SND_SOC_DAILINK_DEFS(dionaudio_loco_v2,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = {
++{
++	.name		= "DionAudio LOCO-V2",
++	.stream_name	= "DionAudio LOCO-V2 DAC-AMP",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_rpi_dionaudio_loco_v2_init,
++	SND_SOC_DAILINK_REG(dionaudio_loco_v2),
++},};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = {
++	.name         = "Dion Audio LOCO-V2",
++	.dai_link     = snd_rpi_dionaudio_loco_v2_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai),
++};
++
++static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_dionaudio_loco_v2.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai =
++					&snd_rpi_dionaudio_loco_v2_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "dionaudio,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco_v2);
++	if (ret)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id dionaudio_of_match[] = {
++	{ .compatible = "dionaudio,dionaudio-loco-v2", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, dionaudio_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = {
++	.driver = {
++		.name   = "snd-rpi-dionaudio-loco-v2",
++		.owner  = THIS_MODULE,
++		.of_match_table = dionaudio_of_match,
++	},
++	.probe          = snd_rpi_dionaudio_loco_v2_probe,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_v2_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco.c
+@@ -0,0 +1,117 @@
++/*
++ * ASoC Driver for Dion Audio LOCO DAC-AMP
++ *
++ * Author:      Miquel Blauw <info@dionaudio.nl>
++ *              Copyright 2016
++ *
++ * Based on the software of the RPi-DAC writen by Florian Meier
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static int snd_rpi_dionaudio_loco_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	unsigned int sample_bits =
++		snd_pcm_format_physical_width(params_format(params));
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = {
++	.hw_params = snd_rpi_dionaudio_loco_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(dionaudio_loco,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm5102a-codec", "pcm5102a-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = {
++{
++	.name		= "DionAudio LOCO",
++	.stream_name	= "DionAudio LOCO DAC-AMP",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S |
++			  SND_SOC_DAIFMT_NB_NF |
++			  SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_dionaudio_loco_ops,
++	SND_SOC_DAILINK_REG(dionaudio_loco),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco = {
++	.name		= "snd_rpi_dionaudio_loco",
++	.dai_link	= snd_rpi_dionaudio_loco_dai,
++	.num_links	= ARRAY_SIZE(snd_rpi_dionaudio_loco_dai),
++};
++
++static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev)
++{
++	struct device_node *np;
++	int ret = 0;
++
++	snd_rpi_dionaudio_loco.dev = &pdev->dev;
++
++	np = pdev->dev.of_node;
++	if (np) {
++		struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0];
++		struct device_node *i2s_np;
++
++		i2s_np = of_parse_phandle(np, "i2s-controller", 0);
++		if (i2s_np) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_np;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_np;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++			ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = {
++	{ .compatible = "dionaudio,loco-pcm5242-tpa3118", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_driver = {
++	.driver = {
++		.name		= "snd-dionaudio-loco",
++		.owner		= THIS_MODULE,
++		.of_match_table	= snd_rpi_dionaudio_loco_of_match,
++	},
++	.probe  = snd_rpi_dionaudio_loco_probe,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/fe-pi-audio.c
+@@ -0,0 +1,154 @@
++/*
++ * ASoC Driver for Fe-Pi Audio Sound Card
++ *
++ * Author:	Henry Kupis <kuupaz@gmail.com>
++ *		Copyright 2016
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *		based on code by Shawn Guo <shawn.guo@linaro.org>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/sgtl5000.h"
++
++static int snd_fe_pi_audio_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_soc_dapm_force_enable_pin(&card->dapm, "LO");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "ADC");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "DAC");
++	snd_soc_dapm_force_enable_pin(&card->dapm, "HP");
++	snd_soc_component_update_bits(component, SGTL5000_CHIP_ANA_POWER,
++			SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
++
++	return 0;
++}
++
++static int snd_fe_pi_audio_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct device *dev = rtd->card->dev;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	int ret;
++
++	/* Set SGTL5000's SYSCLK */
++	ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, 12288000, SND_SOC_CLOCK_IN);
++	if (ret) {
++		dev_err(dev, "could not set codec driver clock params\n");
++		return ret;
++	}
++
++	return 0;
++}
++
++
++static struct snd_soc_ops snd_fe_pi_audio_ops = {
++	.hw_params = snd_fe_pi_audio_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(fe_pi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("sgtl5000.1-000a", "sgtl5000")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_fe_pi_audio_dai[] = {
++	{
++		.name		= "FE-PI",
++		.stream_name	= "Fe-Pi HiFi",
++		.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBM_CFM,
++		.ops		= &snd_fe_pi_audio_ops,
++		.init		= snd_fe_pi_audio_init,
++		SND_SOC_DAILINK_REG(fe_pi),
++	},
++};
++
++static const struct snd_soc_dapm_route fe_pi_audio_dapm_routes[] = {
++	{"ADC", NULL, "Mic Bias"},
++};
++
++
++static struct snd_soc_card fe_pi_audio = {
++	.name         = "Fe-Pi Audio",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_fe_pi_audio_dai,
++	.num_links    = ARRAY_SIZE(snd_fe_pi_audio_dai),
++
++	.dapm_routes = fe_pi_audio_dapm_routes,
++	.num_dapm_routes = ARRAY_SIZE(fe_pi_audio_dapm_routes),
++};
++
++static int snd_fe_pi_audio_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct snd_soc_card *card = &fe_pi_audio;
++	struct device_node *np = pdev->dev.of_node;
++	struct device_node *i2s_node;
++	struct snd_soc_dai_link *dai = &snd_fe_pi_audio_dai[0];
++
++	fe_pi_audio.dev = &pdev->dev;
++
++	i2s_node = of_parse_phandle(np, "i2s-controller", 0);
++	if (!i2s_node) {
++		dev_err(&pdev->dev, "i2s_node phandle missing or invalid\n");
++		return -EINVAL;
++	}
++
++	dai->cpus->dai_name = NULL;
++	dai->cpus->of_node = i2s_node;
++	dai->platforms->name = NULL;
++	dai->platforms->of_node = i2s_node;
++
++	of_node_put(i2s_node);
++
++	card->dev = &pdev->dev;
++	platform_set_drvdata(pdev, card);
++
++	ret = devm_snd_soc_register_card(&pdev->dev, card);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_fe_pi_audio_of_match[] = {
++	{ .compatible = "fe-pi,fe-pi-audio", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_fe_pi_audio_of_match);
++
++static struct platform_driver snd_fe_pi_audio_driver = {
++        .driver = {
++                .name   = "snd-fe-pi-audio",
++                .owner  = THIS_MODULE,
++                .of_match_table = snd_fe_pi_audio_of_match,
++        },
++        .probe          = snd_fe_pi_audio_probe,
++};
++
++module_platform_driver(snd_fe_pi_audio_driver);
++
++MODULE_AUTHOR("Henry Kupis <fe-pi@cox.net>");
++MODULE_DESCRIPTION("ASoC Driver for Fe-Pi Audio");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/googlevoicehat-codec.c
+@@ -0,0 +1,214 @@
++/*
++ * Driver for the Google voiceHAT audio codec for Raspberry Pi.
++ *
++ * Author:	Peter Malkin <petermalkin@google.com>
++ *		Copyright 2016
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/device.h>
++#include <linux/err.h>
++#include <linux/gpio.h>
++#include <linux/gpio/consumer.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/mod_devicetable.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/version.h>
++#include <sound/pcm.h>
++#include <sound/soc.h>
++#include <sound/soc-dai.h>
++#include <sound/soc-dapm.h>
++
++#define ICS43432_RATE_MIN_HZ	7190  /* from data sheet */
++#define ICS43432_RATE_MAX_HZ	52800 /* from data sheet */
++/* Delay in enabling SDMODE after clock settles to remove pop */
++#define SDMODE_DELAY_MS		5
++
++struct voicehat_priv {
++	struct delayed_work enable_sdmode_work;
++	struct gpio_desc *sdmode_gpio;
++	unsigned long sdmode_delay_jiffies;
++};
++
++static void voicehat_enable_sdmode_work(struct work_struct *work)
++{
++	struct voicehat_priv *voicehat = container_of(work,
++						      struct voicehat_priv,
++						      enable_sdmode_work.work);
++	gpiod_set_value(voicehat->sdmode_gpio, 1);
++}
++
++static int voicehat_component_probe(struct snd_soc_component *component)
++{
++	struct voicehat_priv *voicehat =
++				snd_soc_component_get_drvdata(component);
++
++	voicehat->sdmode_gpio = devm_gpiod_get(component->dev, "sdmode",
++					       GPIOD_OUT_LOW);
++	if (IS_ERR(voicehat->sdmode_gpio)) {
++		dev_err(component->dev, "Unable to allocate GPIO pin\n");
++		return PTR_ERR(voicehat->sdmode_gpio);
++	}
++
++	INIT_DELAYED_WORK(&voicehat->enable_sdmode_work,
++			  voicehat_enable_sdmode_work);
++	return 0;
++}
++
++static void voicehat_component_remove(struct snd_soc_component *component)
++{
++	struct voicehat_priv *voicehat =
++				snd_soc_component_get_drvdata(component);
++
++	cancel_delayed_work_sync(&voicehat->enable_sdmode_work);
++}
++
++static const struct snd_soc_dapm_widget voicehat_dapm_widgets[] = {
++	SND_SOC_DAPM_OUTPUT("Speaker"),
++};
++
++static const struct snd_soc_dapm_route voicehat_dapm_routes[] = {
++	{"Speaker", NULL, "HiFi Playback"},
++};
++
++static const struct snd_soc_component_driver voicehat_component_driver = {
++	.probe = voicehat_component_probe,
++	.remove = voicehat_component_remove,
++	.dapm_widgets = voicehat_dapm_widgets,
++	.num_dapm_widgets = ARRAY_SIZE(voicehat_dapm_widgets),
++	.dapm_routes = voicehat_dapm_routes,
++	.num_dapm_routes = ARRAY_SIZE(voicehat_dapm_routes),
++};
++
++static int voicehat_daiops_trigger(struct snd_pcm_substream *substream, int cmd,
++				   struct snd_soc_dai *dai)
++{
++	struct snd_soc_component *component = dai->component;
++	struct voicehat_priv *voicehat =
++				snd_soc_component_get_drvdata(component);
++
++	if (voicehat->sdmode_delay_jiffies == 0)
++		return 0;
++
++	dev_dbg(dai->dev, "CMD             %d", cmd);
++	dev_dbg(dai->dev, "Playback Active %d", dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]);
++	dev_dbg(dai->dev, "Capture Active  %d", dai->stream_active[SNDRV_PCM_STREAM_CAPTURE]);
++
++	switch (cmd) {
++	case SNDRV_PCM_TRIGGER_START:
++	case SNDRV_PCM_TRIGGER_RESUME:
++	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
++		if (dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]) {
++			dev_info(dai->dev, "Enabling audio amp...\n");
++			queue_delayed_work(
++				system_power_efficient_wq,
++				&voicehat->enable_sdmode_work,
++				voicehat->sdmode_delay_jiffies);
++		}
++		break;
++	case SNDRV_PCM_TRIGGER_STOP:
++	case SNDRV_PCM_TRIGGER_SUSPEND:
++	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
++		if (dai->stream_active[SNDRV_PCM_STREAM_PLAYBACK]) {
++			cancel_delayed_work(&voicehat->enable_sdmode_work);
++			dev_info(dai->dev, "Disabling audio amp...\n");
++			gpiod_set_value(voicehat->sdmode_gpio, 0);
++		}
++		break;
++	}
++	return 0;
++}
++
++static const struct snd_soc_dai_ops voicehat_dai_ops = {
++	.trigger = voicehat_daiops_trigger,
++};
++
++static struct snd_soc_dai_driver voicehat_dai = {
++	.name = "voicehat-hifi",
++	.capture = {
++		.stream_name = "HiFi Capture",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_48000,
++		.formats = SNDRV_PCM_FMTBIT_S32_LE
++	},
++	.playback = {
++		.stream_name = "HiFi Playback",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_48000,
++		.formats = SNDRV_PCM_FMTBIT_S32_LE
++	},
++	.ops = &voicehat_dai_ops,
++	.symmetric_rates = 1
++};
++
++#ifdef CONFIG_OF
++static const struct of_device_id voicehat_ids[] = {
++		{ .compatible = "google,voicehat", }, {}
++	};
++	MODULE_DEVICE_TABLE(of, voicehat_ids);
++#endif
++
++static int voicehat_platform_probe(struct platform_device *pdev)
++{
++	struct voicehat_priv *voicehat;
++	unsigned int sdmode_delay;
++	int ret;
++
++	voicehat = devm_kzalloc(&pdev->dev, sizeof(*voicehat), GFP_KERNEL);
++	if (!voicehat)
++		return -ENOMEM;
++
++	ret = device_property_read_u32(&pdev->dev, "voicehat_sdmode_delay",
++				       &sdmode_delay);
++
++	if (ret) {
++		sdmode_delay = SDMODE_DELAY_MS;
++		dev_info(&pdev->dev,
++			 "property 'voicehat_sdmode_delay' not found default 5 mS");
++	} else {
++		dev_info(&pdev->dev, "property 'voicehat_sdmode_delay' found delay= %d mS",
++			 sdmode_delay);
++	}
++	voicehat->sdmode_delay_jiffies = msecs_to_jiffies(sdmode_delay);
++
++	dev_set_drvdata(&pdev->dev, voicehat);
++
++	return snd_soc_register_component(&pdev->dev,
++					  &voicehat_component_driver,
++					  &voicehat_dai,
++					  1);
++}
++
++static int voicehat_platform_remove(struct platform_device *pdev)
++{
++	snd_soc_unregister_component(&pdev->dev);
++	return 0;
++}
++
++static struct platform_driver voicehat_driver = {
++	.driver = {
++		.name = "voicehat-codec",
++		.of_match_table = of_match_ptr(voicehat_ids),
++	},
++	.probe = voicehat_platform_probe,
++	.remove = voicehat_platform_remove,
++};
++
++module_platform_driver(voicehat_driver);
++
++MODULE_DESCRIPTION("Google voiceHAT Codec driver");
++MODULE_AUTHOR("Peter Malkin <petermalkin@google.com>");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -0,0 +1,424 @@
++/*
++ * ASoC Driver for HiFiBerry DAC+ / DAC Pro
++ *
++ * Author:	Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
++ *		Copyright 2014-2015
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *		Headphone added by Joerg Schambacher, joerg@i2audio.com
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/i2c.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/pcm512x.h"
++
++#define HIFIBERRY_DACPRO_NOCLOCK 0
++#define HIFIBERRY_DACPRO_CLK44EN 1
++#define HIFIBERRY_DACPRO_CLK48EN 2
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++static bool slave;
++static bool snd_rpi_hifiberry_is_dacpro;
++static bool digital_gain_0db_limit = true;
++static bool leds_off;
++
++static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_component *component,
++	int clk_id)
++{
++	switch (clk_id) {
++	case HIFIBERRY_DACPRO_NOCLOCK:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case HIFIBERRY_DACPRO_CLK44EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case HIFIBERRY_DACPRO_CLK48EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
++	return (!(sck & 0x40));
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_rpi_hifiberry_dacplus_is_sclk(component);
++}
++
++static bool snd_rpi_hifiberry_dacplus_is_pro_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_rpi_hifiberry_dacplus_clk_gpio(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
++	isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
++	isNoClk = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
++	isClk48En = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_rpi_hifiberry_dacplus_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = HIFIBERRY_DACPRO_CLK44EN;
++		break;
++	default:
++		type = HIFIBERRY_DACPRO_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_rpi_hifiberry_dacplus_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype = snd_rpi_hifiberry_dacplus_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
++			? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_rpi_hifiberry_dacplus_select_clk(component, ctype);
++	}
++}
++
++static int snd_rpi_hifiberry_dacplus_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *priv;
++
++	if (slave)
++		snd_rpi_hifiberry_is_dacpro = false;
++	else
++		snd_rpi_hifiberry_is_dacpro =
++				snd_rpi_hifiberry_dacplus_is_pro_card(component);
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "HiFiBerry DAC+ Pro";
++		dai->stream_name = "HiFiBerry DAC+ Pro HiFi";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++	} else {
++		priv = snd_soc_component_get_drvdata(component);
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	if (leds_off)
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++	else
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplus_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplus_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = 32;
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++		width = snd_pcm_format_physical_width(params_format(params));
++
++		snd_rpi_hifiberry_dacplus_set_sclk(component,
++			params_rate(params));
++
++		ret = snd_rpi_hifiberry_dacplus_update_rate_den(
++			substream, params);
++	}
++
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
++	return ret;
++}
++
++static int snd_rpi_hifiberry_dacplus_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	if (leds_off)
++		return 0;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplus_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_hifiberry_dacplus_ops = {
++	.hw_params = snd_rpi_hifiberry_dacplus_hw_params,
++	.startup = snd_rpi_hifiberry_dacplus_startup,
++	.shutdown = snd_rpi_hifiberry_dacplus_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_hifiberry_dacplus,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplus_dai[] = {
++{
++	.name		= "HiFiBerry DAC+",
++	.stream_name	= "HiFiBerry DAC+ HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_hifiberry_dacplus_ops,
++	.init		= snd_rpi_hifiberry_dacplus_init,
++	SND_SOC_DAILINK_REG(rpi_hifiberry_dacplus),
++},
++};
++
++/* aux device for optional headphone amp */
++static struct snd_soc_aux_dev hifiberry_dacplus_aux_devs[] = {
++	{
++		.dlc = {
++			.name = "tpa6130a2.1-0060",
++		},
++	},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
++	.name         = "snd_rpi_hifiberry_dacplus",
++	.driver_name  = "HifiberryDacp",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_hifiberry_dacplus_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
++};
++
++static int hb_hp_detect(void)
++{
++	struct i2c_adapter *adap = i2c_get_adapter(1);
++	int ret;
++
++	struct i2c_client tpa_i2c_client = {
++		.addr = 0x60,
++		.adapter = adap,
++	};
++
++	ret = i2c_smbus_read_byte(&tpa_i2c_client) >= 0;
++	i2c_put_adapter(adap);
++	return ret;
++};
++
++static struct property tpa_enable_prop = {
++	       .name = "status",
++	       .length = 4 + 1, /* length 'okay' + 1 */
++	       .value = "okay",
++	};
++
++static int snd_rpi_hifiberry_dacplus_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct snd_soc_card *card = &snd_rpi_hifiberry_dacplus;
++	int len;
++	struct device_node *tpa_node;
++	struct property *tpa_prop;
++	struct of_changeset ocs;
++
++	/* probe for head phone amp */
++	if (hb_hp_detect()) {
++		card->aux_dev = hifiberry_dacplus_aux_devs;
++		card->num_aux_devs =
++				ARRAY_SIZE(hifiberry_dacplus_aux_devs);
++		tpa_node = of_find_compatible_node(NULL, NULL, "ti,tpa6130a2");
++		tpa_prop = of_find_property(tpa_node, "status", &len);
++
++		if (strcmp((char *)tpa_prop->value, "okay")) {
++			/* and activate headphone using change_sets */
++			dev_info(&pdev->dev, "activating headphone amplifier");
++			of_changeset_init(&ocs);
++			ret = of_changeset_update_property(&ocs, tpa_node,
++							&tpa_enable_prop);
++			if (ret) {
++				dev_err(&pdev->dev,
++				"cannot activate headphone amplifier\n");
++				return -ENODEV;
++			}
++			ret = of_changeset_apply(&ocs);
++			if (ret) {
++				dev_err(&pdev->dev,
++				"cannot activate headphone amplifier\n");
++				return -ENODEV;
++			}
++		}
++	}
++
++	snd_rpi_hifiberry_dacplus.dev = &pdev->dev;
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_hifiberry_dacplus_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++			"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "hifiberry,24db_digital_gain");
++		slave = of_property_read_bool(pdev->dev.of_node,
++						"hifiberry-dacplus,slave");
++		leds_off = of_property_read_bool(pdev->dev.of_node,
++						"hifiberry-dacplus,leds_off");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev,
++			&snd_rpi_hifiberry_dacplus);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_hifiberry_dacplus_of_match[] = {
++	{ .compatible = "hifiberry,hifiberry-dacplus", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplus_of_match);
++
++static struct platform_driver snd_rpi_hifiberry_dacplus_driver = {
++	.driver = {
++		.name   = "snd-rpi-hifiberry-dacplus",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_hifiberry_dacplus_of_match,
++	},
++	.probe          = snd_rpi_hifiberry_dacplus_probe,
++};
++
++module_platform_driver(snd_rpi_hifiberry_dacplus_driver);
++
++MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplusadc.c
+@@ -0,0 +1,398 @@
++/*
++ * ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC
++ *
++ * Author:	Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
++ *		Copyright 2014-2015
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *		ADC added by Joerg Schambacher <joscha@schambacher.com>
++ *		Copyright 2018
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/pcm512x.h"
++
++#define HIFIBERRY_DACPRO_NOCLOCK 0
++#define HIFIBERRY_DACPRO_CLK44EN 1
++#define HIFIBERRY_DACPRO_CLK48EN 2
++
++struct platform_device *dmic_codec_dev;
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++static bool slave;
++static bool snd_rpi_hifiberry_is_dacpro;
++static bool digital_gain_0db_limit = true;
++static bool leds_off;
++
++static void snd_rpi_hifiberry_dacplusadc_select_clk(struct snd_soc_component *component,
++	int clk_id)
++{
++	switch (clk_id) {
++	case HIFIBERRY_DACPRO_NOCLOCK:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case HIFIBERRY_DACPRO_CLK44EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case HIFIBERRY_DACPRO_CLK48EN:
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_rpi_hifiberry_dacplusadc_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_rpi_hifiberry_dacplusadc_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
++	return (!(sck & 0x40));
++}
++
++static bool snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_rpi_hifiberry_dacplusadc_is_sclk(component);
++}
++
++static bool snd_rpi_hifiberry_dacplusadc_is_pro_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_rpi_hifiberry_dacplusadc_clk_gpio(component);
++
++	snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
++	isClk44EN = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
++	isNoClk = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
++	isClk48En = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_rpi_hifiberry_dacplusadc_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = HIFIBERRY_DACPRO_CLK44EN;
++		break;
++	default:
++		type = HIFIBERRY_DACPRO_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_rpi_hifiberry_dacplusadc_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype = snd_rpi_hifiberry_dacplusadc_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
++			? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_rpi_hifiberry_dacplusadc_select_clk(component, ctype);
++	}
++}
++
++static int snd_rpi_hifiberry_dacplusadc_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *priv;
++
++	if (slave)
++		snd_rpi_hifiberry_is_dacpro = false;
++	else
++		snd_rpi_hifiberry_is_dacpro =
++				snd_rpi_hifiberry_dacplusadc_is_pro_card(component);
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "HiFiBerry ADCDAC+ Pro";
++		dai->stream_name = "HiFiBerry ADCDAC+ Pro HiFi";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++	} else {
++		priv = snd_soc_component_get_drvdata(component);
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	if (leds_off)
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++	else
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplusadc_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplusadc_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = 32;
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++		width = snd_pcm_format_physical_width(params_format(params));
++
++		snd_rpi_hifiberry_dacplusadc_set_sclk(component,
++			params_rate(params));
++
++		ret = snd_rpi_hifiberry_dacplusadc_update_rate_den(
++			substream, params);
++	}
++
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
++	return ret;
++}
++
++static int hifiberry_dacplusadc_LED_cnt;
++
++static int snd_rpi_hifiberry_dacplusadc_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	if (leds_off)
++		return 0;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1,
++					 0x08, 0x08);
++	hifiberry_dacplusadc_LED_cnt++;
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplusadc_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	hifiberry_dacplusadc_LED_cnt--;
++	if (!hifiberry_dacplusadc_LED_cnt)
++		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1,
++						 0x08, 0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_hifiberry_dacplusadc_ops = {
++	.hw_params = snd_rpi_hifiberry_dacplusadc_hw_params,
++	.startup = snd_rpi_hifiberry_dacplusadc_startup,
++	.shutdown = snd_rpi_hifiberry_dacplusadc_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(hifi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
++			   COMP_CODEC("dmic-codec", "dmic-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadc_dai[] = {
++{
++	.name		= "HiFiBerry DAC+ADC",
++	.stream_name	= "HiFiBerry DAC+ADC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_hifiberry_dacplusadc_ops,
++	.init		= snd_rpi_hifiberry_dacplusadc_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_hifiberry_dacplusadc = {
++	.name         = "snd_rpi_hifiberry_dacplusadc",
++	.driver_name  = "HifiberryDacpAdc",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_hifiberry_dacplusadc_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadc_dai),
++};
++
++
++static int snd_rpi_hifiberry_dacplusadc_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_hifiberry_dacplusadc.dev = &pdev->dev;
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_hifiberry_dacplusadc_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++			"i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->of_node = i2s_node;
++			dai->cpus->dai_name = NULL;
++			dai->platforms->name = NULL;
++		}
++	}
++	digital_gain_0db_limit = !of_property_read_bool(
++		pdev->dev.of_node, "hifiberry,24db_digital_gain");
++	slave = of_property_read_bool(pdev->dev.of_node,
++					"hifiberry-dacplusadc,slave");
++	leds_off = of_property_read_bool(pdev->dev.of_node,
++					"hifiberry-dacplusadc,leds_off");
++
++	ret = devm_snd_soc_register_card(&pdev->dev,
++						 &snd_rpi_hifiberry_dacplusadc);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_hifiberry_dacplusadc_of_match[] = {
++	{ .compatible = "hifiberry,hifiberry-dacplusadc", },
++	{},
++};
++
++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadc_of_match);
++
++static struct platform_driver snd_rpi_hifiberry_dacplusadc_driver = {
++	.driver = {
++		.name   = "snd-rpi-hifiberry-dacplusadc",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_hifiberry_dacplusadc_of_match,
++	},
++	.probe          = snd_rpi_hifiberry_dacplusadc_probe,
++};
++
++static int __init hifiberry_dacplusadc_init(void)
++{
++	int ret;
++
++	dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL,
++							 0);
++	if (IS_ERR(dmic_codec_dev)) {
++		pr_err("%s: dmic-codec device registration failed\n", __func__);
++		return PTR_ERR(dmic_codec_dev);
++	}
++
++	ret = platform_driver_register(&snd_rpi_hifiberry_dacplusadc_driver);
++	if (ret) {
++		pr_err("%s: platform driver registration failed\n", __func__);
++		platform_device_unregister(dmic_codec_dev);
++	}
++
++	return ret;
++}
++module_init(hifiberry_dacplusadc_init);
++
++static void __exit hifiberry_dacplusadc_exit(void)
++{
++	platform_driver_unregister(&snd_rpi_hifiberry_dacplusadc_driver);
++	platform_device_unregister(dmic_codec_dev);
++}
++module_exit(hifiberry_dacplusadc_exit);
++
++MODULE_AUTHOR("Joerg Schambacher <joscha@schambacher.com>");
++MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplusadcpro.c
+@@ -0,0 +1,543 @@
++/*
++ * ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC PRO Version (SW control)
++ *
++ * Author:	Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
++ *		Copyright 2014-2015
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *		ADC added by Joerg Schambacher <joerg@i2audio.com>
++ *		Copyright 2018-19
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <sound/tlv.h>
++
++#include "../codecs/pcm512x.h"
++#include "../codecs/pcm186x.h"
++
++#define HIFIBERRY_DACPRO_NOCLOCK 0
++#define HIFIBERRY_DACPRO_CLK44EN 1
++#define HIFIBERRY_DACPRO_CLK48EN 2
++
++struct pcm512x_priv {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++/* Clock rate of CLK44EN attached to GPIO6 pin */
++#define CLK_44EN_RATE 22579200UL
++/* Clock rate of CLK48EN attached to GPIO3 pin */
++#define CLK_48EN_RATE 24576000UL
++
++static bool slave;
++static bool snd_rpi_hifiberry_is_dacpro;
++static bool digital_gain_0db_limit = true;
++static bool leds_off;
++
++static const unsigned int pcm186x_adc_input_channel_sel_value[] = {
++	0x00, 0x01, 0x02, 0x03, 0x10
++};
++
++static const char * const pcm186x_adcl_input_channel_sel_text[] = {
++	"No Select",
++	"VINL1[SE]",					/* Default for ADCL */
++	"VINL2[SE]",
++	"VINL2[SE] + VINL1[SE]",
++	"{VIN1P, VIN1M}[DIFF]"
++};
++
++static const char * const pcm186x_adcr_input_channel_sel_text[] = {
++	"No Select",
++	"VINR1[SE]",					/* Default for ADCR */
++	"VINR2[SE]",
++	"VINR2[SE] + VINR1[SE]",
++	"{VIN2P, VIN2M}[DIFF]"
++};
++
++static const struct soc_enum pcm186x_adc_input_channel_sel[] = {
++	SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_L, 0,
++			      PCM186X_ADC_INPUT_SEL_MASK,
++			      ARRAY_SIZE(pcm186x_adcl_input_channel_sel_text),
++			      pcm186x_adcl_input_channel_sel_text,
++			      pcm186x_adc_input_channel_sel_value),
++	SOC_VALUE_ENUM_SINGLE(PCM186X_ADC1_INPUT_SEL_R, 0,
++			      PCM186X_ADC_INPUT_SEL_MASK,
++			      ARRAY_SIZE(pcm186x_adcr_input_channel_sel_text),
++			      pcm186x_adcr_input_channel_sel_text,
++			      pcm186x_adc_input_channel_sel_value),
++};
++
++static const unsigned int pcm186x_mic_bias_sel_value[] = {
++	0x00, 0x01, 0x11
++};
++
++static const char * const pcm186x_mic_bias_sel_text[] = {
++	"Mic Bias off",
++	"Mic Bias on",
++	"Mic Bias with Bypass Resistor"
++};
++
++static const struct soc_enum pcm186x_mic_bias_sel[] = {
++	SOC_VALUE_ENUM_SINGLE(PCM186X_MIC_BIAS_CTRL, 0,
++			      GENMASK(4, 0),
++			      ARRAY_SIZE(pcm186x_mic_bias_sel_text),
++			      pcm186x_mic_bias_sel_text,
++			      pcm186x_mic_bias_sel_value),
++};
++
++static const unsigned int pcm186x_gain_sel_value[] = {
++	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
++	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
++	0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
++	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
++	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
++	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
++	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
++	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
++	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
++	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
++	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
++	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
++	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
++	0x50
++};
++
++static const char * const pcm186x_gain_sel_text[] = {
++	"-12.0dB", "-11.5dB", "-11.0dB", "-10.5dB", "-10.0dB", "-9.5dB",
++	"-9.0dB", "-8.5dB", "-8.0dB", "-7.5dB", "-7.0dB", "-6.5dB",
++	"-6.0dB", "-5.5dB", "-5.0dB", "-4.5dB", "-4.0dB", "-3.5dB",
++	"-3.0dB", "-2.5dB", "-2.0dB", "-1.5dB", "-1.0dB", "-0.5dB",
++	"0.0dB", "0.5dB", "1.0dB", "1.5dB", "2.0dB", "2.5dB",
++	"3.0dB", "3.5dB", "4.0dB", "4.5dB", "5.0dB", "5.5dB",
++	"6.0dB", "6.5dB", "7.0dB", "7.5dB", "8.0dB", "8.5dB",
++	"9.0dB", "9.5dB", "10.0dB", "10.5dB", "11.0dB", "11.5dB",
++	"12.0dB", "12.5dB", "13.0dB", "13.5dB", "14.0dB", "14.5dB",
++	"15.0dB", "15.5dB", "16.0dB", "16.5dB", "17.0dB", "17.5dB",
++	"18.0dB", "18.5dB", "19.0dB", "19.5dB", "20.0dB", "20.5dB",
++	"21.0dB", "21.5dB", "22.0dB", "22.5dB", "23.0dB", "23.5dB",
++	"24.0dB", "24.5dB", "25.0dB", "25.5dB", "26.0dB", "26.5dB",
++	"27.0dB", "27.5dB", "28.0dB", "28.5dB", "29.0dB", "29.5dB",
++	"30.0dB", "30.5dB", "31.0dB", "31.5dB", "32.0dB", "32.5dB",
++	"33.0dB", "33.5dB", "34.0dB", "34.5dB", "35.0dB", "35.5dB",
++	"36.0dB", "36.5dB", "37.0dB", "37.5dB", "38.0dB", "38.5dB",
++	"39.0dB", "39.5dB", "40.0dB"};
++
++static const struct soc_enum pcm186x_gain_sel[] = {
++	SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_L, 0,
++			      0xff,
++			      ARRAY_SIZE(pcm186x_gain_sel_text),
++			      pcm186x_gain_sel_text,
++			      pcm186x_gain_sel_value),
++	SOC_VALUE_ENUM_SINGLE(PCM186X_PGA_VAL_CH1_R, 0,
++			      0xff,
++			      ARRAY_SIZE(pcm186x_gain_sel_text),
++			      pcm186x_gain_sel_text,
++			      pcm186x_gain_sel_value),
++};
++
++static const struct snd_kcontrol_new pcm1863_snd_controls_card[] = {
++	SOC_ENUM("ADC Left Input", pcm186x_adc_input_channel_sel[0]),
++	SOC_ENUM("ADC Right Input", pcm186x_adc_input_channel_sel[1]),
++	SOC_ENUM("ADC Mic Bias", pcm186x_mic_bias_sel),
++	SOC_ENUM("PGA Gain Left", pcm186x_gain_sel[0]),
++	SOC_ENUM("PGA Gain Right", pcm186x_gain_sel[1]),
++};
++
++static int pcm1863_add_controls(struct snd_soc_component *component)
++{
++	snd_soc_add_component_controls(component,
++			pcm1863_snd_controls_card,
++			ARRAY_SIZE(pcm1863_snd_controls_card));
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplusadcpro_select_clk(
++					struct snd_soc_component *component, int clk_id)
++{
++	switch (clk_id) {
++	case HIFIBERRY_DACPRO_NOCLOCK:
++		snd_soc_component_update_bits(component,
++				PCM512x_GPIO_CONTROL_1, 0x24, 0x00);
++		break;
++	case HIFIBERRY_DACPRO_CLK44EN:
++		snd_soc_component_update_bits(component,
++				PCM512x_GPIO_CONTROL_1, 0x24, 0x20);
++		break;
++	case HIFIBERRY_DACPRO_CLK48EN:
++		snd_soc_component_update_bits(component,
++				PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
++		break;
++	}
++}
++
++static void snd_rpi_hifiberry_dacplusadcpro_clk_gpio(struct snd_soc_component *component)
++{
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02);
++}
++
++static bool snd_rpi_hifiberry_dacplusadcpro_is_sclk(struct snd_soc_component *component)
++{
++	unsigned int sck;
++
++	sck = snd_soc_component_read(component, PCM512x_RATE_DET_4);
++	return (!(sck & 0x40));
++}
++
++static bool snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(
++	struct snd_soc_component *component)
++{
++	msleep(2);
++	return snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
++}
++
++static bool snd_rpi_hifiberry_dacplusadcpro_is_pro_card(struct snd_soc_component *component)
++{
++	bool isClk44EN, isClk48En, isNoClk;
++
++	snd_rpi_hifiberry_dacplusadcpro_clk_gpio(component);
++
++	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
++	isClk44EN = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
++	isNoClk = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++
++	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
++	isClk48En = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++
++	return (isClk44EN && isClk48En && !isNoClk);
++}
++
++static int snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(int sample_rate)
++{
++	int type;
++
++	switch (sample_rate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++	case 352800:
++		type = HIFIBERRY_DACPRO_CLK44EN;
++		break;
++	default:
++		type = HIFIBERRY_DACPRO_CLK48EN;
++		break;
++	}
++	return type;
++}
++
++static void snd_rpi_hifiberry_dacplusadcpro_set_sclk(struct snd_soc_component *component,
++	int sample_rate)
++{
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++
++	if (!IS_ERR(pcm512x->sclk)) {
++		int ctype;
++
++		ctype = snd_rpi_hifiberry_dacplusadcpro_clk_for_rate(sample_rate);
++		clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN)
++			? CLK_44EN_RATE : CLK_48EN_RATE);
++		snd_rpi_hifiberry_dacplusadcpro_select_clk(component, ctype);
++	}
++}
++
++static int snd_rpi_hifiberry_dacplusadcpro_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
++	struct snd_soc_dai_driver *adc_driver = asoc_rtd_to_codec(rtd, 1)->driver;
++	struct pcm512x_priv *priv;
++	int ret;
++
++	if (slave)
++		snd_rpi_hifiberry_is_dacpro = false;
++	else
++		snd_rpi_hifiberry_is_dacpro =
++				snd_rpi_hifiberry_dacplusadcpro_is_pro_card(dac);
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		struct snd_soc_dai_link *dai = rtd->dai_link;
++
++		dai->name = "HiFiBerry DAC+ADC Pro";
++		dai->stream_name = "HiFiBerry DAC+ADC Pro HiFi";
++		dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM;
++
++		// set DAC DAI configuration
++		ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0),
++				SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBM_CFM);
++		if (ret < 0)
++			return ret;
++
++		// set ADC DAI configuration
++		ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 1),
++				SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++			| SND_SOC_DAIFMT_CBS_CFS);
++		if (ret < 0)
++			return ret;
++
++		// set CPU DAI configuration
++		ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0),
++			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
++		if (ret < 0)
++			return ret;
++
++		snd_soc_component_update_bits(dac, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11);
++		snd_soc_component_update_bits(dac, PCM512x_MASTER_MODE, 0x03, 0x03);
++		snd_soc_component_update_bits(dac, PCM512x_MASTER_CLKDIV_2, 0x7f, 63);
++	} else {
++		priv = snd_soc_component_get_drvdata(dac);
++		priv->sclk = ERR_PTR(-ENOENT);
++	}
++
++	/* disable 24bit mode as long as I2S module does not have sign extension fixed */
++	adc_driver->capture.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE;
++
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
++	if (leds_off)
++		snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++	else
++		snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	ret = pcm1863_add_controls(adc);
++	if (ret < 0)
++		dev_warn(rtd->dev, "Failed to add pcm1863 controls: %d\n",
++		ret);
++
++	/* set GPIO2 to output, GPIO3 input */
++	snd_soc_component_write(adc, PCM186X_GPIO3_2_CTRL, 0x00);
++	snd_soc_component_write(adc, PCM186X_GPIO3_2_DIR_CTRL, 0x04);
++	if (leds_off)
++		snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00);
++	else
++		snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplusadcpro_update_rate_den(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; /* only use DAC */
++	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
++	struct snd_ratnum *rats_no_pll;
++	unsigned int num = 0, den = 0;
++	int err;
++
++	rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL);
++	if (!rats_no_pll)
++		return -ENOMEM;
++
++	rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
++	rats_no_pll->den_min = 1;
++	rats_no_pll->den_max = 128;
++	rats_no_pll->den_step = 1;
++
++	err = snd_interval_ratnum(hw_param_interval(params,
++		SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den);
++	if (err >= 0 && den) {
++		params->rate_num = num;
++		params->rate_den = den;
++	}
++
++	devm_kfree(rtd->dev, rats_no_pll);
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplusadcpro_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	int channels = params_channels(params);
++	int width = 32;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_dai_driver *drv = dai->driver;
++	const struct snd_soc_dai_ops *ops = drv->ops;
++
++	if (snd_rpi_hifiberry_is_dacpro) {
++		width = snd_pcm_format_physical_width(params_format(params));
++
++		snd_rpi_hifiberry_dacplusadcpro_set_sclk(dac,
++			params_rate(params));
++
++		ret = snd_rpi_hifiberry_dacplusadcpro_update_rate_den(
++			substream, params);
++		if (ret)
++			return ret;
++	}
++
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), channels * width);
++	if (ret)
++		return ret;
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), channels * width);
++	if (ret)
++		return ret;
++	if (snd_rpi_hifiberry_is_dacpro && ops->hw_params)
++		ret = ops->hw_params(substream, params, dai);
++	return ret;
++}
++
++static int snd_rpi_hifiberry_dacplusadcpro_startup(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
++
++	if (leds_off)
++		return 0;
++	/* switch on respective LED */
++	if (!substream->stream)
++		snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++	else
++		snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x40);
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplusadcpro_shutdown(
++	struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *adc = asoc_rtd_to_codec(rtd, 1)->component;
++
++	/* switch off respective LED */
++	if (!substream->stream)
++		snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++	else
++		snd_soc_component_update_bits(adc, PCM186X_GPIO_IN_OUT, 0x40, 0x00);
++}
++
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_hifiberry_dacplusadcpro_ops = {
++	.hw_params = snd_rpi_hifiberry_dacplusadcpro_hw_params,
++	.startup = snd_rpi_hifiberry_dacplusadcpro_startup,
++	.shutdown = snd_rpi_hifiberry_dacplusadcpro_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(hifi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
++			   COMP_CODEC("pcm186x.1-004a", "pcm1863-aif")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadcpro_dai[] = {
++{
++	.name		= "HiFiBerry DAC+ADC PRO",
++	.stream_name	= "HiFiBerry DAC+ADC PRO HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_hifiberry_dacplusadcpro_ops,
++	.init		= snd_rpi_hifiberry_dacplusadcpro_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_hifiberry_dacplusadcpro = {
++	.name         = "snd_rpi_hifiberry_dacplusadcpro",
++	.driver_name  = "HifiberryDacpAdcPro",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_hifiberry_dacplusadcpro_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadcpro_dai),
++};
++
++static int snd_rpi_hifiberry_dacplusadcpro_probe(struct platform_device *pdev)
++{
++	int ret = 0, i = 0;
++	struct snd_soc_card *card = &snd_rpi_hifiberry_dacplusadcpro;
++
++	snd_rpi_hifiberry_dacplusadcpro.dev = &pdev->dev;
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_hifiberry_dacplusadcpro_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++			"i2s-controller", 0);
++		if (i2s_node) {
++			for (i = 0; i < card->num_links; i++) {
++				dai->cpus->dai_name = NULL;
++				dai->cpus->of_node = i2s_node;
++				dai->platforms->name = NULL;
++				dai->platforms->of_node = i2s_node;
++			}
++		}
++	}
++	digital_gain_0db_limit = !of_property_read_bool(
++		pdev->dev.of_node, "hifiberry-dacplusadcpro,24db_digital_gain");
++	slave = of_property_read_bool(pdev->dev.of_node,
++					"hifiberry-dacplusadcpro,slave");
++	leds_off = of_property_read_bool(pdev->dev.of_node,
++					"hifiberry-dacplusadcpro,leds_off");
++	ret = snd_soc_register_card(&snd_rpi_hifiberry_dacplusadcpro);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_hifiberry_dacplusadcpro_of_match[] = {
++	{ .compatible = "hifiberry,hifiberry-dacplusadcpro", },
++	{},
++};
++
++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadcpro_of_match);
++
++static struct platform_driver snd_rpi_hifiberry_dacplusadcpro_driver = {
++	.driver = {
++		.name   = "snd-rpi-hifiberry-dacplusadcpro",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_hifiberry_dacplusadcpro_of_match,
++	},
++	.probe          = snd_rpi_hifiberry_dacplusadcpro_probe,
++};
++
++module_platform_driver(snd_rpi_hifiberry_dacplusadcpro_driver);
++
++MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
++MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplusdsp.c
+@@ -0,0 +1,90 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * ASoC Driver for HiFiBerry DAC + DSP
++ *
++ * Author:	Joerg Schambacher <joscha@schambacher.com>
++ *		Copyright 2018
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <sound/soc.h>
++
++static struct snd_soc_component_driver dacplusdsp_component_driver;
++
++static struct snd_soc_dai_driver dacplusdsp_dai = {
++	.name = "dacplusdsp-hifi",
++	.capture = {
++		.stream_name = "DAC+DSP Capture",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			   SNDRV_PCM_FMTBIT_S24_LE |
++			   SNDRV_PCM_FMTBIT_S32_LE,
++	},
++	.playback = {
++		.stream_name = "DACP+DSP Playback",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			   SNDRV_PCM_FMTBIT_S24_LE |
++			   SNDRV_PCM_FMTBIT_S32_LE,
++	},
++	.symmetric_rates = 1};
++
++#ifdef CONFIG_OF
++static const struct of_device_id dacplusdsp_ids[] = {
++	{
++		.compatible = "hifiberry,dacplusdsp",
++	},
++	{} };
++MODULE_DEVICE_TABLE(of, dacplusdsp_ids);
++#endif
++
++static int dacplusdsp_platform_probe(struct platform_device *pdev)
++{
++	int ret;
++
++	ret = snd_soc_register_component(&pdev->dev,
++			&dacplusdsp_component_driver, &dacplusdsp_dai, 1);
++	if (ret) {
++		pr_alert("snd_soc_register_component failed\n");
++		return ret;
++	}
++
++	return 0;
++}
++
++static int dacplusdsp_platform_remove(struct platform_device *pdev)
++{
++	snd_soc_unregister_component(&pdev->dev);
++	return 0;
++}
++
++static struct platform_driver dacplusdsp_driver = {
++	.driver = {
++		.name = "hifiberry-dacplusdsp-codec",
++		.of_match_table = of_match_ptr(dacplusdsp_ids),
++		},
++		.probe = dacplusdsp_platform_probe,
++		.remove = dacplusdsp_platform_remove,
++};
++
++module_platform_driver(dacplusdsp_driver);
++
++MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+DSP");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/hifiberry_dacplushd.c
+@@ -0,0 +1,238 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * ASoC Driver for HiFiBerry DAC+ HD
++ *
++ * Author:	Joerg Schambacher, i2Audio GmbH for HiFiBerry
++ *		Copyright 2020
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/kernel.h>
++#include <linux/delay.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++#include <linux/gpio/consumer.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <linux/i2c.h>
++#include <linux/clk.h>
++
++#include "../codecs/pcm179x.h"
++
++#define DEFAULT_RATE		44100
++
++struct brd_drv_data {
++	struct regmap *regmap;
++	struct clk *sclk;
++};
++
++static struct brd_drv_data drvdata;
++static struct gpio_desc *reset_gpio;
++static const unsigned int hb_dacplushd_rates[] = {
++	192000, 96000, 48000, 176400, 88200, 44100,
++};
++
++static struct snd_pcm_hw_constraint_list hb_dacplushd_constraints = {
++	.list = hb_dacplushd_rates,
++	.count = ARRAY_SIZE(hb_dacplushd_rates),
++};
++
++static int snd_rpi_hb_dacplushd_startup(struct snd_pcm_substream *substream)
++{
++	/* constraints for standard sample rates */
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&hb_dacplushd_constraints);
++	return 0;
++}
++
++static void snd_rpi_hifiberry_dacplushd_set_sclk(
++		struct snd_soc_component *component,
++		int sample_rate)
++{
++	if (!IS_ERR(drvdata.sclk))
++		clk_set_rate(drvdata.sclk, sample_rate);
++}
++
++static int snd_rpi_hifiberry_dacplushd_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_dai_link *dai = rtd->dai_link;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	dai->name = "HiFiBerry DAC+ HD";
++	dai->stream_name = "HiFiBerry DAC+ HD HiFi";
++	dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++		| SND_SOC_DAIFMT_CBM_CFM;
++
++	/* allow only fixed 32 clock counts per channel */
++	snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplushd_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++
++	snd_rpi_hifiberry_dacplushd_set_sclk(component, params_rate(params));
++	return ret;
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_hifiberry_dacplushd_ops = {
++	.startup = snd_rpi_hb_dacplushd_startup,
++	.hw_params = snd_rpi_hifiberry_dacplushd_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(hifi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm179x.1-004c", "pcm179x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++
++static struct snd_soc_dai_link snd_rpi_hifiberry_dacplushd_dai[] = {
++{
++	.name		= "HiFiBerry DAC+ HD",
++	.stream_name	= "HiFiBerry DAC+ HD HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_hifiberry_dacplushd_ops,
++	.init		= snd_rpi_hifiberry_dacplushd_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_hifiberry_dacplushd = {
++	.name         = "snd_rpi_hifiberry_dacplushd",
++	.driver_name  = "HifiberryDacplusHD",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_hifiberry_dacplushd_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplushd_dai),
++};
++
++static int snd_rpi_hifiberry_dacplushd_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	static int dac_reset_done;
++	struct device *dev = &pdev->dev;
++	struct device_node *dev_node = dev->of_node;
++
++	snd_rpi_hifiberry_dacplushd.dev = &pdev->dev;
++
++	/* get GPIO and release DAC from RESET */
++	if (!dac_reset_done) {
++		reset_gpio = gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
++		if (IS_ERR(reset_gpio)) {
++			dev_err(&pdev->dev, "gpiod_get() failed\n");
++			return -EINVAL;
++		}
++		dac_reset_done = 1;
++	}
++	if (!IS_ERR(reset_gpio))
++		gpiod_set_value(reset_gpio, 0);
++	msleep(1);
++	if (!IS_ERR(reset_gpio))
++		gpiod_set_value(reset_gpio, 1);
++	msleep(1);
++	if (!IS_ERR(reset_gpio))
++		gpiod_set_value(reset_gpio, 0);
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_hifiberry_dacplushd_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++			"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->of_node = i2s_node;
++			dai->cpus->dai_name = NULL;
++			dai->platforms->name = NULL;
++		} else {
++			return -EPROBE_DEFER;
++		}
++
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev,
++			&snd_rpi_hifiberry_dacplushd);
++	if (ret && ret != -EPROBE_DEFER) {
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++		return ret;
++	}
++	if (ret == -EPROBE_DEFER)
++		return ret;
++
++	dev_set_drvdata(dev, &drvdata);
++	if (dev_node == NULL) {
++		dev_err(&pdev->dev, "Device tree node not found\n");
++		return -ENODEV;
++	}
++
++	drvdata.sclk = devm_clk_get(dev, NULL);
++	if (IS_ERR(drvdata.sclk)) {
++		drvdata.sclk = ERR_PTR(-ENOENT);
++		return -ENODEV;
++	}
++
++	clk_set_rate(drvdata.sclk, DEFAULT_RATE);
++
++	return ret;
++}
++
++static int snd_rpi_hifiberry_dacplushd_remove(struct platform_device *pdev)
++{
++	if (IS_ERR(reset_gpio))
++		return -EINVAL;
++
++	/* put DAC into RESET and release GPIO */
++	gpiod_set_value(reset_gpio, 0);
++	gpiod_put(reset_gpio);
++
++	return 0;
++}
++
++static const struct of_device_id snd_rpi_hifiberry_dacplushd_of_match[] = {
++	{ .compatible = "hifiberry,hifiberry-dacplushd", },
++	{},
++};
++
++MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplushd_of_match);
++
++static struct platform_driver snd_rpi_hifiberry_dacplushd_driver = {
++	.driver = {
++		.name   = "snd-rpi-hifiberry-dacplushd",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_hifiberry_dacplushd_of_match,
++	},
++	.probe          = snd_rpi_hifiberry_dacplushd_probe,
++	.remove		= snd_rpi_hifiberry_dacplushd_remove,
++};
++
++module_platform_driver(snd_rpi_hifiberry_dacplushd_driver);
++
++MODULE_AUTHOR("Joerg Schambacher <joerg@i2audio.com>");
++MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ HD");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/i-sabre-q2m.c
+@@ -0,0 +1,158 @@
++/*
++ * ASoC Driver for I-Sabre Q2M
++ *
++ * Author: Satoru Kawase
++ * Modified by: Xiao Qingyong
++ * Update kernel v4.18+ by : Audiophonics
++ * 		Copyright 2018 Audiophonics
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/fs.h>
++#include <asm/uaccess.h>
++#include <sound/core.h>
++#include <sound/soc.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++
++#include "../codecs/i-sabre-codec.h"
++
++
++static int snd_rpi_i_sabre_q2m_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	unsigned int value;
++
++	/* Device ID */
++	value = snd_soc_component_read(component, ISABRECODEC_REG_01);
++	dev_info(component->card->dev, "Audiophonics Device ID : %02X\n", value);
++
++	/* API revision */
++	value = snd_soc_component_read(component, ISABRECODEC_REG_02);
++	dev_info(component->card->dev, "Audiophonics API revision : %02X\n", value);
++
++	return 0;
++}
++
++static int snd_rpi_i_sabre_q2m_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd     = substream->private_data;
++	struct snd_soc_dai         *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	int bclk_ratio;
++
++	bclk_ratio = snd_pcm_format_physical_width(
++			params_format(params)) * params_channels(params);
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, bclk_ratio);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_i_sabre_q2m_ops = {
++	.hw_params = snd_rpi_i_sabre_q2m_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_i_sabre_q2m,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("i-sabre-codec-i2c.1-0048", "i-sabre-codec-dai")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_i_sabre_q2m_dai[] = {
++	{
++		.name           = "I-Sabre Q2M",
++		.stream_name    = "I-Sabre Q2M DAC",
++		.dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
++						| SND_SOC_DAIFMT_CBS_CFS,
++		.init           = snd_rpi_i_sabre_q2m_init,
++		.ops            = &snd_rpi_i_sabre_q2m_ops,
++		SND_SOC_DAILINK_REG(rpi_i_sabre_q2m),
++	}
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_i_sabre_q2m = {
++	.name      = "I-Sabre Q2M DAC",
++	.owner     = THIS_MODULE,
++	.dai_link  = snd_rpi_i_sabre_q2m_dai,
++	.num_links = ARRAY_SIZE(snd_rpi_i_sabre_q2m_dai)
++};
++
++
++static int snd_rpi_i_sabre_q2m_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_i_sabre_q2m.dev = &pdev->dev;
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_rpi_i_sabre_q2m_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++							"i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpus->dai_name     = NULL;
++			dai->cpus->of_node      = i2s_node;
++			dai->platforms->name    = NULL;
++			dai->platforms->of_node = i2s_node;
++		} else {
++			dev_err(&pdev->dev,
++			    "Property 'i2s-controller' missing or invalid\n");
++			return (-EINVAL);
++		}
++
++		dai->name        = "I-Sabre Q2M";
++		dai->stream_name = "I-Sabre Q2M DAC";
++		dai->dai_fmt     = SND_SOC_DAIFMT_I2S
++					| SND_SOC_DAIFMT_NB_NF
++					| SND_SOC_DAIFMT_CBS_CFS;
++	}
++
++	/* Wait for registering codec driver */
++	mdelay(50);
++
++	ret = snd_soc_register_card(&snd_rpi_i_sabre_q2m);
++	if (ret) {
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++	}
++
++	return ret;
++}
++
++static int snd_rpi_i_sabre_q2m_remove(struct platform_device *pdev)
++{
++	return snd_soc_unregister_card(&snd_rpi_i_sabre_q2m);
++}
++
++static const struct of_device_id snd_rpi_i_sabre_q2m_of_match[] = {
++	{ .compatible = "audiophonics,i-sabre-q2m", },
++	{}
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_i_sabre_q2m_of_match);
++
++static struct platform_driver snd_rpi_i_sabre_q2m_driver = {
++	.driver = {
++		.name           = "snd-rpi-i-sabre-q2m",
++		.owner          = THIS_MODULE,
++		.of_match_table = snd_rpi_i_sabre_q2m_of_match,
++	},
++	.probe  = snd_rpi_i_sabre_q2m_probe,
++	.remove = snd_rpi_i_sabre_q2m_remove,
++};
++module_platform_driver(snd_rpi_i_sabre_q2m_driver);
++
++MODULE_DESCRIPTION("ASoC Driver for I-Sabre Q2M");
++MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/soc/bcm/iqaudio-codec.c
+@@ -0,0 +1,274 @@
++/*
++ * ASoC Driver for IQaudIO Raspberry Pi Codec board
++ *
++ * Author:	Gordon Garrity <gordon@iqaudio.com>
++ *		(C) Copyright IQaudio Limited, 2017-2019
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include <linux/acpi.h>
++#include <linux/slab.h>
++#include "../codecs/da7213.h"
++
++static int pll_out = DA7213_PLL_FREQ_OUT_90316800;
++
++static int snd_rpi_iqaudio_pll_control(struct snd_soc_dapm_widget *w,
++				       struct snd_kcontrol *k, int  event)
++{
++	int ret = 0;
++	struct snd_soc_dapm_context *dapm = w->dapm;
++	struct snd_soc_card *card = dapm->card;
++	struct snd_soc_pcm_runtime *rtd =
++		snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	if (SND_SOC_DAPM_EVENT_OFF(event)) {
++		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_MCLK, 0,
++					  0);
++		if (ret)
++			dev_err(card->dev, "Failed to bypass PLL: %d\n", ret);
++		/* Allow PLL time to bypass */
++		msleep(100);
++	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
++		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL, 0,
++					  pll_out);
++		if (ret)
++			dev_err(card->dev, "Failed to enable PLL: %d\n", ret);
++		/* Allow PLL time to lock */
++		msleep(100);
++	}
++
++	return ret;
++}
++
++static int snd_rpi_iqaudio_post_dapm_event(struct snd_soc_dapm_widget *w,
++                              struct snd_kcontrol *kcontrol,
++                              int event)
++{
++     switch (event) {
++     case SND_SOC_DAPM_POST_PMU:
++           /* Delay for mic bias ramp */
++           msleep(1000);
++           break;
++     default:
++           break;
++     }
++
++     return 0;
++}
++
++static const struct snd_kcontrol_new dapm_controls[] = {
++	SOC_DAPM_PIN_SWITCH("HP Jack"),
++	SOC_DAPM_PIN_SWITCH("MIC Jack"),
++	SOC_DAPM_PIN_SWITCH("Onboard MIC"),
++	SOC_DAPM_PIN_SWITCH("AUX Jack"),
++};
++
++static const struct snd_soc_dapm_widget dapm_widgets[] = {
++	SND_SOC_DAPM_HP("HP Jack", NULL),
++	SND_SOC_DAPM_MIC("MIC Jack", NULL),
++	SND_SOC_DAPM_MIC("Onboard MIC", NULL),
++	SND_SOC_DAPM_LINE("AUX Jack", NULL),
++	SND_SOC_DAPM_SUPPLY("PLL Control", SND_SOC_NOPM, 0, 0,
++			    snd_rpi_iqaudio_pll_control,
++			    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
++	SND_SOC_DAPM_POST("Post Power Up Event", snd_rpi_iqaudio_post_dapm_event),
++};
++
++static const struct snd_soc_dapm_route audio_map[] = {
++	{"HP Jack", NULL, "HPL"},
++	{"HP Jack", NULL, "HPR"},
++	{"HP Jack", NULL, "PLL Control"},
++
++	{"AUXR", NULL, "AUX Jack"},
++	{"AUXL", NULL, "AUX Jack"},
++	{"AUX Jack", NULL, "PLL Control"},
++
++	/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
++	{"MIC1", NULL, "MIC Jack"},
++	{"MIC Jack", NULL, "PLL Control"},
++	{"MIC2", NULL, "Onboard MIC"},
++	{"Onboard MIC", NULL, "PLL Control"},
++};
++
++/* machine stream operations */
++
++static int snd_rpi_iqaudio_codec_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	int ret;
++
++	/*
++	 * Disable AUX Jack Pin by default to prevent PLL being enabled at
++	 * startup. This avoids holding the PLL to a fixed SR config for
++	 * subsequent streams.
++	 *
++	 * This pin can still be enabled later, as required by user-space.
++	 */
++	snd_soc_dapm_disable_pin(&rtd->card->dapm, "AUX Jack");
++	snd_soc_dapm_sync(&rtd->card->dapm);
++
++	/* Set bclk ratio to align with codec's BCLK rate */
++	ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++	if (ret) {
++		dev_err(rtd->dev, "Failed to set CPU BLCK ratio\n");
++		return ret;
++	}
++
++	/* Set MCLK frequency to codec, onboard 11.2896MHz clock */
++	return snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK, 11289600,
++				      SND_SOC_CLOCK_OUT);
++}
++
++static int snd_rpi_iqaudio_codec_hw_params(struct snd_pcm_substream *substream,
++					   struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	unsigned int samplerate = params_rate(params);
++
++	switch (samplerate) {
++	case  8000:
++	case 16000:
++	case 32000:
++	case 48000:
++	case 96000:
++		pll_out = DA7213_PLL_FREQ_OUT_98304000;
++		return 0;
++	case 44100:
++	case 88200:
++		pll_out = DA7213_PLL_FREQ_OUT_90316800;
++		return 0;
++	default:
++		dev_err(rtd->dev,"Unsupported samplerate %d\n", samplerate);
++		return -EINVAL;
++	}
++}
++
++static const struct snd_soc_ops snd_rpi_iqaudio_codec_ops = {
++	.hw_params = snd_rpi_iqaudio_codec_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_iqaudio,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("da7213.1-001a", "da7213-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_iqaudio_codec_dai[] = {
++{
++	.dai_fmt 		= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				  SND_SOC_DAIFMT_CBM_CFM,
++	.init			= snd_rpi_iqaudio_codec_init,
++	.ops			= &snd_rpi_iqaudio_codec_ops,
++	.symmetric_rates	= 1,
++	.symmetric_channels	= 1,
++	.symmetric_samplebits	= 1,
++	SND_SOC_DAILINK_REG(rpi_iqaudio),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_iqaudio_codec = {
++	.owner			= THIS_MODULE,
++	.dai_link		= snd_rpi_iqaudio_codec_dai,
++	.num_links		= ARRAY_SIZE(snd_rpi_iqaudio_codec_dai),
++	.controls		= dapm_controls,
++	.num_controls		= ARRAY_SIZE(dapm_controls),
++	.dapm_widgets		= dapm_widgets,
++	.num_dapm_widgets	= ARRAY_SIZE(dapm_widgets),
++	.dapm_routes		= audio_map,
++	.num_dapm_routes	= ARRAY_SIZE(audio_map),
++};
++
++static int snd_rpi_iqaudio_codec_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_iqaudio_codec.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_card *card = &snd_rpi_iqaudio_codec;
++		struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_codec_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		if (of_property_read_string(pdev->dev.of_node, "card_name",
++					    &card->name))
++			card->name = "IQaudIOCODEC";
++
++		if (of_property_read_string(pdev->dev.of_node, "dai_name",
++					    &dai->name))
++			dai->name = "IQaudIO CODEC";
++
++		if (of_property_read_string(pdev->dev.of_node,
++					"dai_stream_name", &dai->stream_name))
++			dai->stream_name = "IQaudIO CODEC HiFi v1.2";
++
++	}
++
++	ret = snd_soc_register_card(&snd_rpi_iqaudio_codec);
++	if (ret) {
++		if (ret != -EPROBE_DEFER)
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++static int snd_rpi_iqaudio_codec_remove(struct platform_device *pdev)
++{
++	return snd_soc_unregister_card(&snd_rpi_iqaudio_codec);
++}
++
++static const struct of_device_id iqaudio_of_match[] = {
++	{ .compatible = "iqaudio,iqaudio-codec", },
++	{},
++};
++
++MODULE_DEVICE_TABLE(of, iqaudio_of_match);
++
++static struct platform_driver snd_rpi_iqaudio_codec_driver = {
++	.driver = {
++		.name   = "snd-rpi-iqaudio-codec",
++		.owner  = THIS_MODULE,
++		.of_match_table = iqaudio_of_match,
++	},
++	.probe          = snd_rpi_iqaudio_codec_probe,
++	.remove         = snd_rpi_iqaudio_codec_remove,
++};
++
++
++
++module_platform_driver(snd_rpi_iqaudio_codec_driver);
++
++MODULE_AUTHOR("Gordon Garrity <gordon@iqaudio.com>");
++MODULE_DESCRIPTION("ASoC Driver for IQaudIO CODEC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/iqaudio-dac.c
+@@ -0,0 +1,223 @@
++/*
++ * ASoC Driver for IQaudIO DAC
++ *
++ * Author:	Florian Meier <florian.meier@koalo.de>
++ *		Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static bool digital_gain_0db_limit = true;
++
++static struct gpio_desc *mute_gpio;
++
++static int snd_rpi_iqaudio_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	if (digital_gain_0db_limit)
++	{
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static void snd_rpi_iqaudio_gpio_mute(struct snd_soc_card *card)
++{
++	if (mute_gpio) {
++		dev_info(card->dev, "%s: muting amp using GPIO22\n",
++			 __func__);
++		gpiod_set_value_cansleep(mute_gpio, 0);
++	}
++}
++
++static void snd_rpi_iqaudio_gpio_unmute(struct snd_soc_card *card)
++{
++	if (mute_gpio) {
++		dev_info(card->dev, "%s: un-muting amp using GPIO22\n",
++			 __func__);
++		gpiod_set_value_cansleep(mute_gpio, 1);
++	}
++}
++
++static int snd_rpi_iqaudio_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level)
++{
++	struct snd_soc_pcm_runtime *rtd;
++	struct snd_soc_dai *codec_dai;
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	if (dapm->dev != codec_dai->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
++			break;
++
++		/* UNMUTE AMP */
++		snd_rpi_iqaudio_gpio_unmute(card);
++
++		break;
++	case SND_SOC_BIAS_STANDBY:
++		if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
++			break;
++
++		/* MUTE AMP */
++		snd_rpi_iqaudio_gpio_mute(card);
++
++		break;
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++SND_SOC_DAILINK_DEFS(hifi,
++        DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++        DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi")),
++        DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_iqaudio_dac_dai[] = {
++{
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.init		= snd_rpi_iqaudio_dac_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_iqaudio_dac = {
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_iqaudio_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
++};
++
++static int snd_rpi_iqaudio_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	bool gpio_unmute = false;
++
++	snd_rpi_iqaudio_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_card *card = &snd_rpi_iqaudio_dac;
++		struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_dac_dai[0];
++		bool auto_gpio_mute = false;
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "iqaudio,24db_digital_gain");
++
++		if (of_property_read_string(pdev->dev.of_node, "card_name",
++					    &card->name))
++			card->name = "IQaudIODAC";
++
++		if (of_property_read_string(pdev->dev.of_node, "dai_name",
++					    &dai->name))
++			dai->name = "IQaudIO DAC";
++
++		if (of_property_read_string(pdev->dev.of_node,
++					"dai_stream_name", &dai->stream_name))
++			dai->stream_name = "IQaudIO DAC HiFi";
++
++		/* gpio_unmute - one time unmute amp using GPIO */
++		gpio_unmute = of_property_read_bool(pdev->dev.of_node,
++						    "iqaudio-dac,unmute-amp");
++
++		/* auto_gpio_mute - mute/unmute amp using GPIO */
++		auto_gpio_mute = of_property_read_bool(pdev->dev.of_node,
++						"iqaudio-dac,auto-mute-amp");
++
++		if (auto_gpio_mute || gpio_unmute) {
++			mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute",
++							    GPIOD_OUT_LOW);
++			if (IS_ERR(mute_gpio)) {
++				ret = PTR_ERR(mute_gpio);
++				dev_err(&pdev->dev,
++					"Failed to get mute gpio: %d\n", ret);
++				return ret;
++			}
++
++			if (auto_gpio_mute && mute_gpio)
++				snd_rpi_iqaudio_dac.set_bias_level =
++						snd_rpi_iqaudio_set_bias_level;
++		}
++	}
++
++	ret = snd_soc_register_card(&snd_rpi_iqaudio_dac);
++	if (ret) {
++		if (ret != -EPROBE_DEFER)
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++		return ret;
++	}
++
++	if (gpio_unmute && mute_gpio)
++		snd_rpi_iqaudio_gpio_unmute(&snd_rpi_iqaudio_dac);
++
++	return 0;
++}
++
++static int snd_rpi_iqaudio_dac_remove(struct platform_device *pdev)
++{
++	snd_rpi_iqaudio_gpio_mute(&snd_rpi_iqaudio_dac);
++
++	return snd_soc_unregister_card(&snd_rpi_iqaudio_dac);
++}
++
++static const struct of_device_id iqaudio_of_match[] = {
++	{ .compatible = "iqaudio,iqaudio-dac", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, iqaudio_of_match);
++
++static struct platform_driver snd_rpi_iqaudio_dac_driver = {
++	.driver = {
++		.name   = "snd-rpi-iqaudio-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = iqaudio_of_match,
++	},
++	.probe          = snd_rpi_iqaudio_dac_probe,
++	.remove         = snd_rpi_iqaudio_dac_remove,
++};
++
++module_platform_driver(snd_rpi_iqaudio_dac_driver);
++
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_DESCRIPTION("ASoC Driver for IQAudio DAC");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/justboom-both.c
+@@ -0,0 +1,266 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * rpi--wm8804.c -- ALSA SoC Raspberry Pi soundcard.
++ *
++ * Authors: Johannes Krude <johannes@krude.de
++ *
++ * Driver for when connecting simultaneously justboom-digi and justboom-dac
++ *
++ * Based upon code from:
++ * justboom-digi.c
++ * by Milan Neskovic <info@justboom.co>
++ * justboom-dac.c
++ * by Milan Neskovic <info@justboom.co>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/wm8804.h"
++#include "../codecs/pcm512x.h"
++
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_justboom_both_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
++
++	/* enable  TX output */
++	snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x4, 0x0);
++
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	if (digital_gain_0db_limit) {
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
++									207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n",
++									ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_justboom_both_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	int sysclk = 27000000; /* This is fixed on this board */
++
++	long mclk_freq    = 0;
++	int mclk_div      = 1;
++	int sampling_freq = 1;
++
++	int ret;
++
++	int samplerate = params_rate(params);
++
++	if (samplerate <= 96000) {
++		mclk_freq = samplerate*256;
++		mclk_div  = WM8804_MCLKDIV_256FS;
++	} else {
++		mclk_freq = samplerate*128;
++		mclk_div  = WM8804_MCLKDIV_128FS;
++	}
++
++	switch (samplerate) {
++	case 32000:
++		sampling_freq = 0x03;
++		break;
++	case 44100:
++		sampling_freq = 0x00;
++		break;
++	case 48000:
++		sampling_freq = 0x02;
++		break;
++	case 88200:
++		sampling_freq = 0x08;
++		break;
++	case 96000:
++		sampling_freq = 0x0a;
++		break;
++	case 176400:
++		sampling_freq = 0x0c;
++		break;
++	case 192000:
++		sampling_freq = 0x0e;
++		break;
++	default:
++		dev_err(rtd->card->dev,
++		"Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++		samplerate);
++	}
++
++	snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
++	snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
++
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++					sysclk, SND_SOC_CLOCK_OUT);
++	if (ret < 0) {
++		dev_err(rtd->card->dev,
++		"Failed to set WM8804 SYSCLK: %d\n", ret);
++		return ret;
++	}
++
++	/* Enable TX output */
++	snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x4, 0x0);
++
++	/* Power on */
++	snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x9, 0);
++
++	/* set sampling frequency status bits */
++	snd_soc_component_update_bits(digi, WM8804_SPDTX4, 0x0f, sampling_freq);
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++
++static int snd_rpi_justboom_both_startup(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
++
++	/* turn on digital output */
++	snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x3c, 0x00);
++
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++
++	return 0;
++}
++
++static void snd_rpi_justboom_both_shutdown(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *digi = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_component *dac = asoc_rtd_to_codec(rtd, 1)->component;
++
++	snd_soc_component_update_bits(dac, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++
++	/* turn off output */
++	snd_soc_component_update_bits(digi, WM8804_PWRDN, 0x3c, 0x3c);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_justboom_both_ops = {
++	.hw_params = snd_rpi_justboom_both_hw_params,
++	.startup   = snd_rpi_justboom_both_startup,
++	.shutdown  = snd_rpi_justboom_both_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_justboom_both,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
++			   COMP_CODEC("wm8804.1-003b", "wm8804-spdif")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_justboom_both_dai[] = {
++{
++	.name           = "JustBoom Digi",
++	.stream_name    = "JustBoom Digi HiFi",
++	.dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBM_CFM,
++	.ops            = &snd_rpi_justboom_both_ops,
++	.init           = snd_rpi_justboom_both_init,
++	SND_SOC_DAILINK_REG(rpi_justboom_both),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_justboom_both = {
++	.name             = "snd_rpi_justboom_both",
++	.driver_name      = "JustBoomBoth",
++	.owner            = THIS_MODULE,
++	.dai_link         = snd_rpi_justboom_both_dai,
++	.num_links        = ARRAY_SIZE(snd_rpi_justboom_both_dai),
++};
++
++static int snd_rpi_justboom_both_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct snd_soc_card *card = &snd_rpi_justboom_both;
++
++	snd_rpi_justboom_both.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &snd_rpi_justboom_both_dai[0];
++
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					    "i2s-controller", 0);
++
++		if (i2s_node) {
++			int i;
++
++			for (i = 0; i < card->num_links; i++) {
++				dai->cpus->dai_name = NULL;
++				dai->cpus->of_node = i2s_node;
++				dai->platforms->name = NULL;
++				dai->platforms->of_node = i2s_node;
++			}
++		}
++
++		digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "justboom,24db_digital_gain");
++	}
++
++	ret = snd_soc_register_card(card);
++	if (ret && ret != -EPROBE_DEFER) {
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++	}
++
++	return ret;
++}
++
++static int snd_rpi_justboom_both_remove(struct platform_device *pdev)
++{
++	return snd_soc_unregister_card(&snd_rpi_justboom_both);
++}
++
++static const struct of_device_id snd_rpi_justboom_both_of_match[] = {
++	{ .compatible = "justboom,justboom-both", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_justboom_both_of_match);
++
++static struct platform_driver snd_rpi_justboom_both_driver = {
++	.driver = {
++		.name   = "snd-rpi-justboom-both",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_justboom_both_of_match,
++	},
++	.probe          = snd_rpi_justboom_both_probe,
++	.remove         = snd_rpi_justboom_both_remove,
++};
++
++module_platform_driver(snd_rpi_justboom_both_driver);
++
++MODULE_AUTHOR("Johannes Krude <johannes@krude.de>");
++MODULE_DESCRIPTION("ASoC Driver for simultaneous use of JustBoom PI Digi & DAC HAT Sound Cards");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/justboom-dac.c
+@@ -0,0 +1,147 @@
++/*
++ * ASoC Driver for JustBoom DAC Raspberry Pi HAT Sound Card
++ *
++ * Author:	Milan Neskovic
++ *		Copyright 2016
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/pcm512x.h"
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_justboom_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++
++	if (digital_gain_0db_limit)
++	{
++		int ret;
++		struct snd_soc_card *card = rtd->card;
++
++		ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++		if (ret < 0)
++			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++	}
++
++	return 0;
++}
++
++static int snd_rpi_justboom_dac_startup(struct snd_pcm_substream *substream) {
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++	return 0;
++}
++
++static void snd_rpi_justboom_dac_shutdown(struct snd_pcm_substream *substream) {
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_justboom_dac_ops = {
++	.startup = snd_rpi_justboom_dac_startup,
++	.shutdown = snd_rpi_justboom_dac_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(hifi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_justboom_dac_dai[] = {
++{
++	.name		= "JustBoom DAC",
++	.stream_name	= "JustBoom DAC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	.ops		= &snd_rpi_justboom_dac_ops,
++	.init		= snd_rpi_justboom_dac_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_justboom_dac = {
++	.name         = "snd_rpi_justboom_dac",
++	.driver_name  = "JustBoomDac",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_justboom_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_justboom_dac_dai),
++};
++
++static int snd_rpi_justboom_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_justboom_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++	    struct device_node *i2s_node;
++	    struct snd_soc_dai_link *dai = &snd_rpi_justboom_dac_dai[0];
++	    i2s_node = of_parse_phandle(pdev->dev.of_node,
++					"i2s-controller", 0);
++
++	    if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++	    }
++
++	    digital_gain_0db_limit = !of_property_read_bool(
++			pdev->dev.of_node, "justboom,24db_digital_gain");
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_justboom_dac);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_justboom_dac_of_match[] = {
++	{ .compatible = "justboom,justboom-dac", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_justboom_dac_of_match);
++
++static struct platform_driver snd_rpi_justboom_dac_driver = {
++	.driver = {
++		.name   = "snd-rpi-justboom-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_justboom_dac_of_match,
++	},
++	.probe          = snd_rpi_justboom_dac_probe,
++};
++
++module_platform_driver(snd_rpi_justboom_dac_driver);
++
++MODULE_AUTHOR("Milan Neskovic <info@justboom.co>");
++MODULE_DESCRIPTION("ASoC Driver for JustBoom PI DAC HAT Sound Card");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/pisound.c
+@@ -0,0 +1,1238 @@
++/*
++ * Pisound Linux kernel module.
++ * Copyright (C) 2016-2020  Vilniaus Blokas UAB, https://blokas.io/pisound
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; version 2 of the
++ * License.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
++ * MA  02110-1301, USA.
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/gpio.h>
++#include <linux/kobject.h>
++#include <linux/sysfs.h>
++#include <linux/delay.h>
++#include <linux/spi/spi.h>
++#include <linux/interrupt.h>
++#include <linux/kfifo.h>
++#include <linux/jiffies.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <sound/rawmidi.h>
++#include <sound/asequencer.h>
++#include <sound/control.h>
++
++static int pisnd_spi_init(struct device *dev);
++static void pisnd_spi_uninit(void);
++
++static void pisnd_spi_flush(void);
++static void pisnd_spi_start(void);
++static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length);
++
++typedef void (*pisnd_spi_recv_cb)(void *data);
++static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data);
++
++static const char *pisnd_spi_get_serial(void);
++static const char *pisnd_spi_get_id(void);
++static const char *pisnd_spi_get_fw_version(void);
++static const char *pisnd_spi_get_hw_version(void);
++
++static int pisnd_midi_init(struct snd_card *card);
++static void pisnd_midi_uninit(void);
++
++enum task_e {
++	TASK_PROCESS = 0,
++};
++
++static void pisnd_schedule_process(enum task_e task);
++
++#define PISOUND_LOG_PREFIX "pisound: "
++
++#ifdef PISOUND_DEBUG
++#	define printd(...) pr_alert(PISOUND_LOG_PREFIX __VA_ARGS__)
++#else
++#	define printd(...) do {} while (0)
++#endif
++
++#define printe(...) pr_err(PISOUND_LOG_PREFIX __VA_ARGS__)
++#define printi(...) pr_info(PISOUND_LOG_PREFIX __VA_ARGS__)
++
++static struct snd_rawmidi *g_rmidi;
++static struct snd_rawmidi_substream *g_midi_output_substream;
++
++static int pisnd_output_open(struct snd_rawmidi_substream *substream)
++{
++	g_midi_output_substream = substream;
++	return 0;
++}
++
++static int pisnd_output_close(struct snd_rawmidi_substream *substream)
++{
++	g_midi_output_substream = NULL;
++	return 0;
++}
++
++static void pisnd_output_trigger(
++	struct snd_rawmidi_substream *substream,
++	int up
++	)
++{
++	if (substream != g_midi_output_substream) {
++		printe("MIDI output trigger called for an unexpected stream!");
++		return;
++	}
++
++	if (!up)
++		return;
++
++	pisnd_spi_start();
++}
++
++static void pisnd_output_drain(struct snd_rawmidi_substream *substream)
++{
++	pisnd_spi_flush();
++}
++
++static int pisnd_input_open(struct snd_rawmidi_substream *substream)
++{
++	return 0;
++}
++
++static int pisnd_input_close(struct snd_rawmidi_substream *substream)
++{
++	return 0;
++}
++
++static void pisnd_midi_recv_callback(void *substream)
++{
++	uint8_t data[128];
++	uint8_t n = 0;
++
++	while ((n = pisnd_spi_recv(data, sizeof(data)))) {
++		int res = snd_rawmidi_receive(substream, data, n);
++		(void)res;
++		printd("midi recv %u bytes, res = %d\n", n, res);
++	}
++}
++
++static void pisnd_input_trigger(struct snd_rawmidi_substream *substream, int up)
++{
++	if (up) {
++		pisnd_spi_set_callback(pisnd_midi_recv_callback, substream);
++		pisnd_schedule_process(TASK_PROCESS);
++	} else {
++		pisnd_spi_set_callback(NULL, NULL);
++	}
++}
++
++static struct snd_rawmidi_ops pisnd_output_ops = {
++	.open = pisnd_output_open,
++	.close = pisnd_output_close,
++	.trigger = pisnd_output_trigger,
++	.drain = pisnd_output_drain,
++};
++
++static struct snd_rawmidi_ops pisnd_input_ops = {
++	.open = pisnd_input_open,
++	.close = pisnd_input_close,
++	.trigger = pisnd_input_trigger,
++};
++
++static void pisnd_get_port_info(
++	struct snd_rawmidi *rmidi,
++	int number,
++	struct snd_seq_port_info *seq_port_info
++	)
++{
++	seq_port_info->type =
++		SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
++		SNDRV_SEQ_PORT_TYPE_HARDWARE |
++		SNDRV_SEQ_PORT_TYPE_PORT;
++	seq_port_info->midi_voices = 0;
++}
++
++static struct snd_rawmidi_global_ops pisnd_global_ops = {
++	.get_port_info = pisnd_get_port_info,
++};
++
++static int pisnd_midi_init(struct snd_card *card)
++{
++	int err;
++
++	g_midi_output_substream = NULL;
++
++	err = snd_rawmidi_new(card, "pisound MIDI", 0, 1, 1, &g_rmidi);
++
++	if (err < 0) {
++		printe("snd_rawmidi_new failed: %d\n", err);
++		return err;
++	}
++
++	strcpy(g_rmidi->name, "pisound MIDI ");
++	strcat(g_rmidi->name, pisnd_spi_get_serial());
++
++	g_rmidi->info_flags =
++		SNDRV_RAWMIDI_INFO_OUTPUT |
++		SNDRV_RAWMIDI_INFO_INPUT |
++		SNDRV_RAWMIDI_INFO_DUPLEX;
++
++	g_rmidi->ops = &pisnd_global_ops;
++
++	g_rmidi->private_data = (void *)0;
++
++	snd_rawmidi_set_ops(
++		g_rmidi,
++		SNDRV_RAWMIDI_STREAM_OUTPUT,
++		&pisnd_output_ops
++		);
++
++	snd_rawmidi_set_ops(
++		g_rmidi,
++		SNDRV_RAWMIDI_STREAM_INPUT,
++		&pisnd_input_ops
++		);
++
++	return 0;
++}
++
++static void pisnd_midi_uninit(void)
++{
++}
++
++static void *g_recvData;
++static pisnd_spi_recv_cb g_recvCallback;
++
++#define FIFO_SIZE 4096
++
++static char g_serial_num[11];
++static char g_id[25];
++enum { MAX_VERSION_STR_LEN = 6 };
++static char g_fw_version[MAX_VERSION_STR_LEN];
++static char g_hw_version[MAX_VERSION_STR_LEN];
++
++static uint8_t g_ledFlashDuration;
++static bool    g_ledFlashDurationChanged;
++
++DEFINE_KFIFO(spi_fifo_in,  uint8_t, FIFO_SIZE);
++DEFINE_KFIFO(spi_fifo_out, uint8_t, FIFO_SIZE);
++
++static struct gpio_desc *data_available;
++static struct gpio_desc *spi_reset;
++
++static struct spi_device *pisnd_spi_device;
++
++static struct workqueue_struct *pisnd_workqueue;
++static struct work_struct pisnd_work_process;
++
++static void pisnd_work_handler(struct work_struct *work);
++
++static void spi_transfer(const uint8_t *txbuf, uint8_t *rxbuf, int len);
++static uint16_t spi_transfer16(uint16_t val);
++
++static int pisnd_init_workqueues(void)
++{
++	pisnd_workqueue = create_singlethread_workqueue("pisnd_workqueue");
++	INIT_WORK(&pisnd_work_process, pisnd_work_handler);
++
++	return 0;
++}
++
++static void pisnd_uninit_workqueues(void)
++{
++	flush_workqueue(pisnd_workqueue);
++	destroy_workqueue(pisnd_workqueue);
++
++	pisnd_workqueue = NULL;
++}
++
++static bool pisnd_spi_has_more(void)
++{
++	return gpiod_get_value(data_available);
++}
++
++static void pisnd_schedule_process(enum task_e task)
++{
++	if (pisnd_spi_device != NULL &&
++		pisnd_workqueue != NULL &&
++		!work_pending(&pisnd_work_process)
++		) {
++		printd("schedule: has more = %d\n", pisnd_spi_has_more());
++		if (task == TASK_PROCESS)
++			queue_work(pisnd_workqueue, &pisnd_work_process);
++	}
++}
++
++static irqreturn_t data_available_interrupt_handler(int irq, void *dev_id)
++{
++	if (irq == gpiod_to_irq(data_available) && pisnd_spi_has_more()) {
++		printd("schedule from irq\n");
++		pisnd_schedule_process(TASK_PROCESS);
++	}
++
++	return IRQ_HANDLED;
++}
++
++static uint16_t spi_transfer16(uint16_t val)
++{
++	uint8_t txbuf[2];
++	uint8_t rxbuf[2];
++
++	if (!pisnd_spi_device) {
++		printe("pisnd_spi_device null, returning\n");
++		return 0;
++	}
++
++	txbuf[0] = val >> 8;
++	txbuf[1] = val & 0xff;
++
++	spi_transfer(txbuf, rxbuf, sizeof(txbuf));
++
++	printd("received: %02x%02x\n", rxbuf[0], rxbuf[1]);
++
++	return (rxbuf[0] << 8) | rxbuf[1];
++}
++
++static void spi_transfer(const uint8_t *txbuf, uint8_t *rxbuf, int len)
++{
++	int err;
++	struct spi_transfer transfer;
++	struct spi_message msg;
++
++	memset(rxbuf, 0, len);
++
++	if (!pisnd_spi_device) {
++		printe("pisnd_spi_device null, returning\n");
++		return;
++	}
++
++	spi_message_init(&msg);
++
++	memset(&transfer, 0, sizeof(transfer));
++
++	transfer.tx_buf = txbuf;
++	transfer.rx_buf = rxbuf;
++	transfer.len = len;
++	transfer.speed_hz = 150000;
++	transfer.delay_usecs = 10;
++	spi_message_add_tail(&transfer, &msg);
++
++	err = spi_sync(pisnd_spi_device, &msg);
++
++	if (err < 0) {
++		printe("spi_sync error %d\n", err);
++		return;
++	}
++
++	printd("hasMore %d\n", pisnd_spi_has_more());
++}
++
++static int spi_read_bytes(char *dst, size_t length, uint8_t *bytesRead)
++{
++	uint16_t rx;
++	uint8_t size;
++	uint8_t i;
++
++	memset(dst, 0, length);
++	*bytesRead = 0;
++
++	rx = spi_transfer16(0);
++	if (!(rx >> 8))
++		return -EINVAL;
++
++	size = rx & 0xff;
++
++	if (size > length)
++		return -EINVAL;
++
++	for (i = 0; i < size; ++i) {
++		rx = spi_transfer16(0);
++		if (!(rx >> 8))
++			return -EINVAL;
++
++		dst[i] = rx & 0xff;
++	}
++
++	*bytesRead = i;
++
++	return 0;
++}
++
++static int spi_device_match(struct device *dev, const void *data)
++{
++	struct spi_device *spi = container_of(dev, struct spi_device, dev);
++
++	printd("      %s %s %dkHz %d bits mode=0x%02X\n",
++		spi->modalias, dev_name(dev), spi->max_speed_hz/1000,
++		spi->bits_per_word, spi->mode);
++
++	if (strcmp("pisound-spi", spi->modalias) == 0) {
++		printi("\tFound!\n");
++		return 1;
++	}
++
++	printe("\tNot found!\n");
++	return 0;
++}
++
++static struct spi_device *pisnd_spi_find_device(void)
++{
++	struct device *dev;
++
++	printi("Searching for spi device...\n");
++	dev = bus_find_device(&spi_bus_type, NULL, NULL, spi_device_match);
++	if (dev != NULL)
++		return container_of(dev, struct spi_device, dev);
++	else
++		return NULL;
++}
++
++static void pisnd_work_handler(struct work_struct *work)
++{
++	enum { TRANSFER_SIZE = 4 };
++	enum { PISOUND_OUTPUT_BUFFER_SIZE_MILLIBYTES = 127 * 1000 };
++	enum { MIDI_MILLIBYTES_PER_JIFFIE = (3125 * 1000) / HZ };
++	int out_buffer_used_millibytes = 0;
++	unsigned long now;
++	uint8_t val;
++	uint8_t txbuf[TRANSFER_SIZE];
++	uint8_t rxbuf[TRANSFER_SIZE];
++	uint8_t midibuf[TRANSFER_SIZE];
++	int i, n;
++	bool had_data;
++
++	unsigned long last_transfer_at = jiffies;
++
++	if (work == &pisnd_work_process) {
++		if (pisnd_spi_device == NULL)
++			return;
++
++		do {
++			if (g_midi_output_substream &&
++				kfifo_avail(&spi_fifo_out) >= sizeof(midibuf)) {
++
++				n = snd_rawmidi_transmit_peek(
++					g_midi_output_substream,
++					midibuf, sizeof(midibuf)
++				);
++
++				if (n > 0) {
++					for (i = 0; i < n; ++i)
++						kfifo_put(
++							&spi_fifo_out,
++							midibuf[i]
++							);
++					snd_rawmidi_transmit_ack(
++						g_midi_output_substream,
++						i
++						);
++				}
++			}
++
++			had_data = false;
++			memset(txbuf, 0, sizeof(txbuf));
++			for (i = 0; i < sizeof(txbuf) &&
++				((out_buffer_used_millibytes+1000 <
++				PISOUND_OUTPUT_BUFFER_SIZE_MILLIBYTES) ||
++				g_ledFlashDurationChanged);
++				i += 2) {
++
++				val = 0;
++
++				if (g_ledFlashDurationChanged) {
++					txbuf[i+0] = 0xf0;
++					txbuf[i+1] = g_ledFlashDuration;
++					g_ledFlashDuration = 0;
++					g_ledFlashDurationChanged = false;
++				} else if (kfifo_get(&spi_fifo_out, &val)) {
++					txbuf[i+0] = 0x0f;
++					txbuf[i+1] = val;
++					out_buffer_used_millibytes += 1000;
++				}
++			}
++
++			spi_transfer(txbuf, rxbuf, sizeof(txbuf));
++			/* Estimate the Pisound's MIDI output buffer usage, so
++			 * that we don't overflow it. Space in the buffer should
++			 * be becoming available at the UART MIDI byte transfer
++			 * rate.
++			 */
++			now = jiffies;
++			if (now != last_transfer_at) {
++				out_buffer_used_millibytes -=
++					(now - last_transfer_at) *
++					MIDI_MILLIBYTES_PER_JIFFIE;
++				if (out_buffer_used_millibytes < 0)
++					out_buffer_used_millibytes = 0;
++				last_transfer_at = now;
++			}
++
++			for (i = 0; i < sizeof(rxbuf); i += 2) {
++				if (rxbuf[i]) {
++					kfifo_put(&spi_fifo_in, rxbuf[i+1]);
++					if (kfifo_len(&spi_fifo_in) > 16 &&
++						g_recvCallback)
++						g_recvCallback(g_recvData);
++					had_data = true;
++				}
++			}
++		} while (had_data
++			|| !kfifo_is_empty(&spi_fifo_out)
++			|| pisnd_spi_has_more()
++			|| g_ledFlashDurationChanged
++			|| out_buffer_used_millibytes != 0
++			);
++
++		if (!kfifo_is_empty(&spi_fifo_in) && g_recvCallback)
++			g_recvCallback(g_recvData);
++	}
++}
++
++static int pisnd_spi_gpio_init(struct device *dev)
++{
++	spi_reset = gpiod_get_index(dev, "reset", 1, GPIOD_ASIS);
++	data_available = gpiod_get_index(dev, "data_available", 0, GPIOD_ASIS);
++
++	gpiod_direction_output(spi_reset, 1);
++	gpiod_direction_input(data_available);
++
++	/* Reset the slave. */
++	gpiod_set_value(spi_reset, false);
++	mdelay(1);
++	gpiod_set_value(spi_reset, true);
++
++	/* Give time for spi slave to start. */
++	mdelay(64);
++
++	return 0;
++}
++
++static void pisnd_spi_gpio_uninit(void)
++{
++	gpiod_set_value(spi_reset, false);
++	gpiod_put(spi_reset);
++	spi_reset = NULL;
++
++	gpiod_put(data_available);
++	data_available = NULL;
++}
++
++static int pisnd_spi_gpio_irq_init(struct device *dev)
++{
++	return request_threaded_irq(
++		gpiod_to_irq(data_available), NULL,
++		data_available_interrupt_handler,
++		IRQF_TIMER | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
++		"data_available_int",
++		NULL
++		);
++}
++
++static void pisnd_spi_gpio_irq_uninit(void)
++{
++	free_irq(gpiod_to_irq(data_available), NULL);
++}
++
++static int spi_read_info(void)
++{
++	uint16_t tmp;
++	uint8_t count;
++	uint8_t n;
++	uint8_t i;
++	uint8_t j;
++	char buffer[257];
++	int ret;
++	char *p;
++
++	memset(g_serial_num, 0, sizeof(g_serial_num));
++	memset(g_fw_version, 0, sizeof(g_fw_version));
++	strcpy(g_hw_version, "1.0"); // Assume 1.0 hw version.
++	memset(g_id, 0, sizeof(g_id));
++
++	tmp = spi_transfer16(0);
++
++	if (!(tmp >> 8))
++		return -EINVAL;
++
++	count = tmp & 0xff;
++
++	for (i = 0; i < count; ++i) {
++		memset(buffer, 0, sizeof(buffer));
++		ret = spi_read_bytes(buffer, sizeof(buffer)-1, &n);
++
++		if (ret < 0)
++			return ret;
++
++		switch (i) {
++		case 0:
++			if (n != 2)
++				return -EINVAL;
++
++			snprintf(
++				g_fw_version,
++				MAX_VERSION_STR_LEN,
++				"%x.%02x",
++				buffer[0],
++				buffer[1]
++				);
++
++			g_fw_version[MAX_VERSION_STR_LEN-1] = '\0';
++			break;
++		case 3:
++			if (n != 2)
++				return -EINVAL;
++
++			snprintf(
++				g_hw_version,
++				MAX_VERSION_STR_LEN,
++				"%x.%x",
++				buffer[0],
++				buffer[1]
++			);
++
++			g_hw_version[MAX_VERSION_STR_LEN-1] = '\0';
++			break;
++		case 1:
++			if (n >= sizeof(g_serial_num))
++				return -EINVAL;
++
++			memcpy(g_serial_num, buffer, sizeof(g_serial_num));
++			break;
++		case 2:
++			{
++				if (n*2 >= sizeof(g_id))
++					return -EINVAL;
++
++				p = g_id;
++				for (j = 0; j < n; ++j)
++					p += sprintf(p, "%02x", buffer[j]);
++
++				*p = '\0';
++			}
++			break;
++		default:
++			break;
++		}
++	}
++
++	return 0;
++}
++
++static int pisnd_spi_init(struct device *dev)
++{
++	int ret;
++	struct spi_device *spi;
++
++	memset(g_serial_num, 0, sizeof(g_serial_num));
++	memset(g_id, 0, sizeof(g_id));
++	memset(g_fw_version, 0, sizeof(g_fw_version));
++	memset(g_hw_version, 0, sizeof(g_hw_version));
++
++	spi = pisnd_spi_find_device();
++
++	if (spi != NULL) {
++		printd("initializing spi!\n");
++		pisnd_spi_device = spi;
++		ret = spi_setup(pisnd_spi_device);
++	} else {
++		printe("SPI device not found, deferring!\n");
++		return -EPROBE_DEFER;
++	}
++
++	ret = pisnd_spi_gpio_init(dev);
++
++	if (ret < 0) {
++		printe("SPI GPIO init failed: %d\n", ret);
++		spi_dev_put(pisnd_spi_device);
++		pisnd_spi_device = NULL;
++		pisnd_spi_gpio_uninit();
++		return ret;
++	}
++
++	ret = spi_read_info();
++
++	if (ret < 0) {
++		printe("Reading card info failed: %d\n", ret);
++		spi_dev_put(pisnd_spi_device);
++		pisnd_spi_device = NULL;
++		pisnd_spi_gpio_uninit();
++		return ret;
++	}
++
++	/* Flash the LEDs. */
++	spi_transfer16(0xf008);
++
++	ret = pisnd_spi_gpio_irq_init(dev);
++	if (ret < 0) {
++		printe("SPI irq request failed: %d\n", ret);
++		spi_dev_put(pisnd_spi_device);
++		pisnd_spi_device = NULL;
++		pisnd_spi_gpio_irq_uninit();
++		pisnd_spi_gpio_uninit();
++	}
++
++	ret = pisnd_init_workqueues();
++	if (ret != 0) {
++		printe("Workqueue initialization failed: %d\n", ret);
++		spi_dev_put(pisnd_spi_device);
++		pisnd_spi_device = NULL;
++		pisnd_spi_gpio_irq_uninit();
++		pisnd_spi_gpio_uninit();
++		pisnd_uninit_workqueues();
++		return ret;
++	}
++
++	if (pisnd_spi_has_more()) {
++		printd("data is available, scheduling from init\n");
++		pisnd_schedule_process(TASK_PROCESS);
++	}
++
++	return 0;
++}
++
++static void pisnd_spi_uninit(void)
++{
++	pisnd_uninit_workqueues();
++
++	spi_dev_put(pisnd_spi_device);
++	pisnd_spi_device = NULL;
++
++	pisnd_spi_gpio_irq_uninit();
++	pisnd_spi_gpio_uninit();
++}
++
++static void pisnd_spi_flash_leds(uint8_t duration)
++{
++	g_ledFlashDuration = duration;
++	g_ledFlashDurationChanged = true;
++	printd("schedule from spi_flash_leds\n");
++	pisnd_schedule_process(TASK_PROCESS);
++}
++
++static void pisnd_spi_flush(void)
++{
++	while (!kfifo_is_empty(&spi_fifo_out)) {
++		pisnd_spi_start();
++		flush_workqueue(pisnd_workqueue);
++	}
++}
++
++static void pisnd_spi_start(void)
++{
++	printd("schedule from spi_start\n");
++	pisnd_schedule_process(TASK_PROCESS);
++}
++
++static uint8_t pisnd_spi_recv(uint8_t *buffer, uint8_t length)
++{
++	return kfifo_out(&spi_fifo_in, buffer, length);
++}
++
++static void pisnd_spi_set_callback(pisnd_spi_recv_cb cb, void *data)
++{
++	g_recvData = data;
++	g_recvCallback = cb;
++}
++
++static const char *pisnd_spi_get_serial(void)
++{
++	return g_serial_num;
++}
++
++static const char *pisnd_spi_get_id(void)
++{
++	return g_id;
++}
++
++static const char *pisnd_spi_get_fw_version(void)
++{
++	return g_fw_version;
++}
++
++static const char *pisnd_spi_get_hw_version(void)
++{
++	return g_hw_version;
++}
++
++static const struct of_device_id pisound_of_match[] = {
++	{ .compatible = "blokaslabs,pisound", },
++	{ .compatible = "blokaslabs,pisound-spi", },
++	{},
++};
++
++enum {
++	SWITCH = 0,
++	VOLUME = 1,
++};
++
++static int pisnd_ctl_info(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_info *uinfo)
++{
++	if (kcontrol->private_value == SWITCH) {
++		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
++		uinfo->count = 1;
++		uinfo->value.integer.min = 0;
++		uinfo->value.integer.max = 1;
++		return 0;
++	} else if (kcontrol->private_value == VOLUME) {
++		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
++		uinfo->count = 1;
++		uinfo->value.integer.min = 0;
++		uinfo->value.integer.max = 100;
++		return 0;
++	}
++	return -EINVAL;
++}
++
++static int pisnd_ctl_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	if (kcontrol->private_value == SWITCH) {
++		ucontrol->value.integer.value[0] = 1;
++		return 0;
++	} else if (kcontrol->private_value == VOLUME) {
++		ucontrol->value.integer.value[0] = 100;
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static struct snd_kcontrol_new pisnd_ctl[] = {
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name = "PCM Playback Switch",
++		.index = 0,
++		.private_value = SWITCH,
++		.access = SNDRV_CTL_ELEM_ACCESS_READ,
++		.info = pisnd_ctl_info,
++		.get = pisnd_ctl_get,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name = "PCM Playback Volume",
++		.index = 0,
++		.private_value = VOLUME,
++		.access = SNDRV_CTL_ELEM_ACCESS_READ,
++		.info = pisnd_ctl_info,
++		.get = pisnd_ctl_get,
++	},
++};
++
++static int pisnd_ctl_init(struct snd_card *card)
++{
++	int err, i;
++
++	for (i = 0; i < ARRAY_SIZE(pisnd_ctl); ++i) {
++		err = snd_ctl_add(card, snd_ctl_new1(&pisnd_ctl[i], NULL));
++		if (err < 0)
++			return err;
++	}
++
++	return 0;
++}
++
++static int pisnd_ctl_uninit(void)
++{
++	return 0;
++}
++
++static struct gpio_desc *osr0, *osr1, *osr2;
++static struct gpio_desc *reset;
++static struct gpio_desc *button;
++
++static int pisnd_hw_params(
++	struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params
++	)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	/* Pisound runs on fixed 32 clock counts per channel,
++	 * as generated by the master ADC.
++	 */
++	snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);
++
++	printd("rate   = %d\n", params_rate(params));
++	printd("ch     = %d\n", params_channels(params));
++	printd("bits   = %u\n",
++		snd_pcm_format_physical_width(params_format(params)));
++	printd("format = %d\n", params_format(params));
++
++	gpiod_set_value(reset, false);
++
++	switch (params_rate(params)) {
++	case 48000:
++		gpiod_set_value(osr0, true);
++		gpiod_set_value(osr1, false);
++		gpiod_set_value(osr2, false);
++		break;
++	case 96000:
++		gpiod_set_value(osr0, true);
++		gpiod_set_value(osr1, false);
++		gpiod_set_value(osr2, true);
++		break;
++	case 192000:
++		gpiod_set_value(osr0, true);
++		gpiod_set_value(osr1, true);
++		gpiod_set_value(osr2, true);
++		break;
++	default:
++		printe("Unsupported rate %u!\n", params_rate(params));
++		return -EINVAL;
++	}
++
++	gpiod_set_value(reset, true);
++
++	return 0;
++}
++
++static unsigned int rates[3] = {
++	48000, 96000, 192000
++};
++
++static struct snd_pcm_hw_constraint_list constraints_rates = {
++	.count = ARRAY_SIZE(rates),
++	.list = rates,
++	.mask = 0,
++};
++
++static int pisnd_startup(struct snd_pcm_substream *substream)
++{
++	int err = snd_pcm_hw_constraint_list(
++		substream->runtime,
++		0,
++		SNDRV_PCM_HW_PARAM_RATE,
++		&constraints_rates
++		);
++
++	if (err < 0)
++		return err;
++
++	err = snd_pcm_hw_constraint_single(
++		substream->runtime,
++		SNDRV_PCM_HW_PARAM_CHANNELS,
++		2
++		);
++
++	if (err < 0)
++		return err;
++
++	err = snd_pcm_hw_constraint_mask64(
++		substream->runtime,
++		SNDRV_PCM_HW_PARAM_FORMAT,
++		SNDRV_PCM_FMTBIT_S16_LE |
++		SNDRV_PCM_FMTBIT_S24_LE |
++		SNDRV_PCM_FMTBIT_S32_LE
++		);
++
++	if (err < 0)
++		return err;
++
++	return 0;
++}
++
++static struct snd_soc_ops pisnd_ops = {
++	.startup = pisnd_startup,
++	.hw_params = pisnd_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(pisnd,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_DUMMY()),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link pisnd_dai[] = {
++	{
++		.name           = "pisound",
++		.stream_name    = "pisound",
++		.dai_fmt        =
++			SND_SOC_DAIFMT_I2S |
++			SND_SOC_DAIFMT_NB_NF |
++			SND_SOC_DAIFMT_CBM_CFM,
++		.ops            = &pisnd_ops,
++		SND_SOC_DAILINK_REG(pisnd),
++	},
++};
++
++static int pisnd_card_probe(struct snd_soc_card *card)
++{
++	int err = pisnd_midi_init(card->snd_card);
++
++	if (err < 0) {
++		printe("pisnd_midi_init failed: %d\n", err);
++		return err;
++	}
++
++	err = pisnd_ctl_init(card->snd_card);
++	if (err < 0) {
++		printe("pisnd_ctl_init failed: %d\n", err);
++		return err;
++	}
++
++	return 0;
++}
++
++static int pisnd_card_remove(struct snd_soc_card *card)
++{
++	pisnd_ctl_uninit();
++	pisnd_midi_uninit();
++	return 0;
++}
++
++static struct snd_soc_card pisnd_card = {
++	.name         = "pisound",
++	.owner        = THIS_MODULE,
++	.dai_link     = pisnd_dai,
++	.num_links    = ARRAY_SIZE(pisnd_dai),
++	.probe        = pisnd_card_probe,
++	.remove       = pisnd_card_remove,
++};
++
++static int pisnd_init_gpio(struct device *dev)
++{
++	osr0 = gpiod_get_index(dev, "osr", 0, GPIOD_ASIS);
++	osr1 = gpiod_get_index(dev, "osr", 1, GPIOD_ASIS);
++	osr2 = gpiod_get_index(dev, "osr", 2, GPIOD_ASIS);
++
++	reset = gpiod_get_index(dev, "reset", 0, GPIOD_ASIS);
++
++	button = gpiod_get_index(dev, "button", 0, GPIOD_ASIS);
++
++	gpiod_direction_output(osr0,  1);
++	gpiod_direction_output(osr1,  1);
++	gpiod_direction_output(osr2,  1);
++	gpiod_direction_output(reset, 1);
++
++	gpiod_set_value(reset, false);
++	gpiod_set_value(osr0,   true);
++	gpiod_set_value(osr1,  false);
++	gpiod_set_value(osr2,  false);
++	gpiod_set_value(reset,  true);
++
++	gpiod_export(button, false);
++
++	return 0;
++}
++
++static int pisnd_uninit_gpio(void)
++{
++	int i;
++
++	struct gpio_desc **gpios[] = {
++		&osr0, &osr1, &osr2, &reset, &button,
++	};
++
++	gpiod_unexport(button);
++
++	for (i = 0; i < ARRAY_SIZE(gpios); ++i) {
++		if (*gpios[i] == NULL) {
++			printd("weird, GPIO[%d] is NULL already\n", i);
++			continue;
++		}
++
++		gpiod_put(*gpios[i]);
++		*gpios[i] = NULL;
++	}
++
++	return 0;
++}
++
++static struct kobject *pisnd_kobj;
++
++static ssize_t pisnd_serial_show(
++	struct kobject *kobj,
++	struct kobj_attribute *attr,
++	char *buf
++	)
++{
++	return sprintf(buf, "%s\n", pisnd_spi_get_serial());
++}
++
++static ssize_t pisnd_id_show(
++	struct kobject *kobj,
++	struct kobj_attribute *attr,
++	char *buf
++	)
++{
++	return sprintf(buf, "%s\n", pisnd_spi_get_id());
++}
++
++static ssize_t pisnd_fw_version_show(
++	struct kobject *kobj,
++	struct kobj_attribute *attr,
++	char *buf
++	)
++{
++	return sprintf(buf, "%s\n", pisnd_spi_get_fw_version());
++}
++
++static ssize_t pisnd_hw_version_show(
++	struct kobject *kobj,
++	struct kobj_attribute *attr,
++	char *buf
++)
++{
++	return sprintf(buf, "%s\n", pisnd_spi_get_hw_version());
++}
++
++static ssize_t pisnd_led_store(
++	struct kobject *kobj,
++	struct kobj_attribute *attr,
++	const char *buf,
++	size_t length
++	)
++{
++	uint32_t timeout;
++	int err;
++
++	err = kstrtou32(buf, 10, &timeout);
++
++	if (err == 0 && timeout <= 255)
++		pisnd_spi_flash_leds(timeout);
++
++	return length;
++}
++
++static struct kobj_attribute pisnd_serial_attribute =
++	__ATTR(serial, 0444, pisnd_serial_show, NULL);
++static struct kobj_attribute pisnd_id_attribute =
++	__ATTR(id, 0444, pisnd_id_show, NULL);
++static struct kobj_attribute pisnd_fw_version_attribute =
++	__ATTR(version, 0444, pisnd_fw_version_show, NULL);
++static struct kobj_attribute pisnd_hw_version_attribute =
++__ATTR(hw_version, 0444, pisnd_hw_version_show, NULL);
++static struct kobj_attribute pisnd_led_attribute =
++	__ATTR(led, 0644, NULL, pisnd_led_store);
++
++static struct attribute *attrs[] = {
++	&pisnd_serial_attribute.attr,
++	&pisnd_id_attribute.attr,
++	&pisnd_fw_version_attribute.attr,
++	&pisnd_hw_version_attribute.attr,
++	&pisnd_led_attribute.attr,
++	NULL
++};
++
++static struct attribute_group attr_group = { .attrs = attrs };
++
++static int pisnd_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	int i;
++
++	ret = pisnd_spi_init(&pdev->dev);
++	if (ret < 0) {
++		printe("pisnd_spi_init failed: %d\n", ret);
++		return ret;
++	}
++
++	printi("Detected Pisound card:\n");
++	printi("\tSerial:           %s\n", pisnd_spi_get_serial());
++	printi("\tFirmware Version: %s\n", pisnd_spi_get_fw_version());
++	printi("\tHardware Version: %s\n", pisnd_spi_get_hw_version());
++	printi("\tId:               %s\n", pisnd_spi_get_id());
++
++	pisnd_kobj = kobject_create_and_add("pisound", kernel_kobj);
++	if (!pisnd_kobj) {
++		pisnd_spi_uninit();
++		return -ENOMEM;
++	}
++
++	ret = sysfs_create_group(pisnd_kobj, &attr_group);
++	if (ret < 0) {
++		pisnd_spi_uninit();
++		kobject_put(pisnd_kobj);
++		return -ENOMEM;
++	}
++
++	pisnd_init_gpio(&pdev->dev);
++	pisnd_card.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++
++		i2s_node = of_parse_phandle(
++			pdev->dev.of_node,
++			"i2s-controller",
++			0
++			);
++
++		for (i = 0; i < pisnd_card.num_links; ++i) {
++			struct snd_soc_dai_link *dai = &pisnd_dai[i];
++
++			if (i2s_node) {
++				dai->cpus->dai_name = NULL;
++				dai->cpus->of_node = i2s_node;
++				dai->platforms->name = NULL;
++				dai->platforms->of_node = i2s_node;
++				dai->stream_name = pisnd_spi_get_serial();
++			}
++		}
++	}
++
++	ret = snd_soc_register_card(&pisnd_card);
++
++	if (ret < 0) {
++		if (ret != -EPROBE_DEFER)
++			printe("snd_soc_register_card() failed: %d\n", ret);
++		pisnd_uninit_gpio();
++		kobject_put(pisnd_kobj);
++		pisnd_spi_uninit();
++	}
++
++	return ret;
++}
++
++static int pisnd_remove(struct platform_device *pdev)
++{
++	printi("Unloading.\n");
++
++	if (pisnd_kobj) {
++		kobject_put(pisnd_kobj);
++		pisnd_kobj = NULL;
++	}
++
++	pisnd_spi_uninit();
++
++	/* Turn off */
++	gpiod_set_value(reset, false);
++	pisnd_uninit_gpio();
++
++	return snd_soc_unregister_card(&pisnd_card);
++}
++
++MODULE_DEVICE_TABLE(of, pisound_of_match);
++
++static struct platform_driver pisnd_driver = {
++	.driver = {
++		.name           = "snd-rpi-pisound",
++		.owner          = THIS_MODULE,
++		.of_match_table = pisound_of_match,
++	},
++	.probe              = pisnd_probe,
++	.remove             = pisnd_remove,
++};
++
++module_platform_driver(pisnd_driver);
++
++MODULE_AUTHOR("Giedrius Trainavicius <giedrius@blokas.io>");
++MODULE_DESCRIPTION("ASoC Driver for Pisound, https://blokas.io/pisound");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/rpi-cirrus.c
+@@ -0,0 +1,1025 @@
++/*
++ * ASoC machine driver for Cirrus Logic Audio Card
++ * (with WM5102 and WM8804 codecs)
++ *
++ * Copyright 2015-2017 Matthias Reichl <hias@horus.com>
++ *
++ * Based on rpi-cirrus-sound-pi driver (c) Wolfson / Cirrus Logic Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/module.h>
++#include <linux/mutex.h>
++#include <linux/slab.h>
++#include <linux/list.h>
++#include <linux/delay.h>
++#include <sound/pcm_params.h>
++
++#include <linux/mfd/arizona/registers.h>
++
++#include "../codecs/wm5102.h"
++#include "../codecs/wm8804.h"
++
++#define WM8804_CLKOUT_HZ 12000000
++
++#define RPI_CIRRUS_DEFAULT_RATE 44100
++#define WM5102_MAX_SYSCLK_1 49152000 /* max sysclk for 4K family */
++#define WM5102_MAX_SYSCLK_2 45158400 /* max sysclk for 11.025K family */
++
++static inline unsigned int calc_sysclk(unsigned int rate)
++{
++	return (rate % 4000) ? WM5102_MAX_SYSCLK_2 : WM5102_MAX_SYSCLK_1;
++}
++
++enum {
++	DAI_WM5102 = 0,
++	DAI_WM8804,
++};
++
++struct rpi_cirrus_priv {
++	/* mutex for synchronzing FLL1 access with DAPM */
++	struct mutex lock;
++	unsigned int card_rate;
++	int sync_path_enable;
++	int fll1_freq; /* negative means RefClock in spdif rx case */
++
++	/* track hw params/free for substreams */
++	unsigned int params_set;
++	unsigned int min_rate_idx, max_rate_idx;
++	unsigned char iec958_status[4];
++};
++
++/* helper functions */
++static inline struct snd_soc_pcm_runtime *get_wm5102_runtime(
++	struct snd_soc_card *card) {
++	return snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_WM5102]);
++}
++
++static inline struct snd_soc_pcm_runtime *get_wm8804_runtime(
++	struct snd_soc_card *card) {
++	return snd_soc_get_pcm_runtime(card, &card->dai_link[DAI_WM8804]);
++}
++
++
++struct rate_info {
++	unsigned int value;
++	char *text;
++};
++
++static struct rate_info min_rates[] = {
++	{     0, "off"},
++	{ 32000, "32kHz"},
++	{ 44100, "44.1kHz"}
++};
++
++#define NUM_MIN_RATES ARRAY_SIZE(min_rates)
++
++static int rpi_cirrus_min_rate_info(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
++	uinfo->count = 1;
++	uinfo->value.enumerated.items = NUM_MIN_RATES;
++
++	if (uinfo->value.enumerated.item >= NUM_MIN_RATES)
++		uinfo->value.enumerated.item = NUM_MIN_RATES - 1;
++	strcpy(uinfo->value.enumerated.name,
++		min_rates[uinfo->value.enumerated.item].text);
++	return 0;
++}
++
++static int rpi_cirrus_min_rate_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++
++	ucontrol->value.enumerated.item[0] = priv->min_rate_idx;
++	return 0;
++}
++
++static int rpi_cirrus_min_rate_put(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	int changed = 0;
++
++	if (priv->min_rate_idx != ucontrol->value.enumerated.item[0]) {
++		changed = 1;
++		priv->min_rate_idx = ucontrol->value.enumerated.item[0];
++	}
++
++	return changed;
++}
++
++static struct rate_info max_rates[] = {
++	{     0, "off"},
++	{ 48000, "48kHz"},
++	{ 96000, "96kHz"}
++};
++
++#define NUM_MAX_RATES ARRAY_SIZE(max_rates)
++
++static int rpi_cirrus_max_rate_info(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
++	uinfo->count = 1;
++	uinfo->value.enumerated.items = NUM_MAX_RATES;
++	if (uinfo->value.enumerated.item >= NUM_MAX_RATES)
++		uinfo->value.enumerated.item = NUM_MAX_RATES - 1;
++	strcpy(uinfo->value.enumerated.name,
++		max_rates[uinfo->value.enumerated.item].text);
++	return 0;
++}
++
++static int rpi_cirrus_max_rate_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++
++	ucontrol->value.enumerated.item[0] = priv->max_rate_idx;
++	return 0;
++}
++
++static int rpi_cirrus_max_rate_put(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	int changed = 0;
++
++	if (priv->max_rate_idx != ucontrol->value.enumerated.item[0]) {
++		changed = 1;
++		priv->max_rate_idx = ucontrol->value.enumerated.item[0];
++	}
++
++	return changed;
++}
++
++static int rpi_cirrus_spdif_info(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
++	uinfo->count = 1;
++	return 0;
++}
++
++static int rpi_cirrus_spdif_playback_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	int i;
++
++	for (i = 0; i < 4; i++)
++		ucontrol->value.iec958.status[i] = priv->iec958_status[i];
++
++	return 0;
++}
++
++static int rpi_cirrus_spdif_playback_put(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_component *wm8804_component =
++		asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	unsigned char *stat = priv->iec958_status;
++	unsigned char *ctrl_stat = ucontrol->value.iec958.status;
++	unsigned int mask;
++	int i, changed = 0;
++
++	for (i = 0; i < 4; i++) {
++		mask = (i == 3) ? 0x3f : 0xff;
++		if ((ctrl_stat[i] & mask) != (stat[i] & mask)) {
++			changed = 1;
++			stat[i] = ctrl_stat[i] & mask;
++			snd_soc_component_update_bits(wm8804_component,
++				WM8804_SPDTX1 + i, mask, stat[i]);
++		}
++	}
++
++	return changed;
++}
++
++static int rpi_cirrus_spdif_mask_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	ucontrol->value.iec958.status[0] = 0xff;
++	ucontrol->value.iec958.status[1] = 0xff;
++	ucontrol->value.iec958.status[2] = 0xff;
++	ucontrol->value.iec958.status[3] = 0x3f;
++
++	return 0;
++}
++
++static int rpi_cirrus_spdif_capture_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_component *wm8804_component =
++		asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
++	unsigned int val, mask;
++	int i;
++
++	for (i = 0; i < 4; i++) {
++		val = snd_soc_component_read(wm8804_component,
++			WM8804_RXCHAN1 + i);
++		mask = (i == 3) ? 0x3f : 0xff;
++		ucontrol->value.iec958.status[i] = val & mask;
++	}
++
++	return 0;
++}
++
++#define SPDIF_FLAG_CTRL(desc, reg, bit, invert) \
++{ \
++		.access =  SNDRV_CTL_ELEM_ACCESS_READ \
++			   | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER, \
++		.name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) \
++				desc " Flag", \
++		.info =    snd_ctl_boolean_mono_info, \
++		.get =     rpi_cirrus_spdif_status_flag_get, \
++		.private_value = \
++			(bit) | ((reg) << 8) | ((invert) << 16) \
++}
++
++static int rpi_cirrus_spdif_status_flag_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_component *wm8804_component =
++		asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
++
++	unsigned int bit = kcontrol->private_value & 0xff;
++	unsigned int reg = (kcontrol->private_value >> 8) & 0xff;
++	unsigned int invert = (kcontrol->private_value >> 16) & 0xff;
++	unsigned int val;
++	bool flag;
++
++	val = snd_soc_component_read(wm8804_component, reg);
++
++	flag = val & (1 << bit);
++
++	ucontrol->value.integer.value[0] = invert ? !flag : flag;
++
++	return 0;
++}
++
++static const char * const recovered_frequency_texts[] = {
++	"176.4/192 kHz",
++	"88.2/96 kHz",
++	"44.1/48 kHz",
++	"32 kHz"
++};
++
++#define NUM_RECOVERED_FREQUENCIES \
++	ARRAY_SIZE(recovered_frequency_texts)
++
++static int rpi_cirrus_recovered_frequency_info(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
++	uinfo->count = 1;
++	uinfo->value.enumerated.items = NUM_RECOVERED_FREQUENCIES;
++	if (uinfo->value.enumerated.item >= NUM_RECOVERED_FREQUENCIES)
++		uinfo->value.enumerated.item = NUM_RECOVERED_FREQUENCIES - 1;
++	strcpy(uinfo->value.enumerated.name,
++		recovered_frequency_texts[uinfo->value.enumerated.item]);
++	return 0;
++}
++
++static int rpi_cirrus_recovered_frequency_get(struct snd_kcontrol *kcontrol,
++	struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_component *wm8804_component =
++		asoc_rtd_to_codec(get_wm8804_runtime(card), 0)->component;
++	unsigned int val;
++
++	val = snd_soc_component_read(wm8804_component, WM8804_SPDSTAT);
++
++	ucontrol->value.enumerated.item[0] = (val >> 4) & 0x03;
++	return 0;
++}
++
++static const struct snd_kcontrol_new rpi_cirrus_controls[] = {
++	{
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    "Min Sample Rate",
++		.info =    rpi_cirrus_min_rate_info,
++		.get =     rpi_cirrus_min_rate_get,
++		.put =     rpi_cirrus_min_rate_put,
++	},
++	{
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    "Max Sample Rate",
++		.info =    rpi_cirrus_max_rate_info,
++		.get =     rpi_cirrus_max_rate_get,
++		.put =     rpi_cirrus_max_rate_put,
++	},
++	{
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
++		.info =    rpi_cirrus_spdif_info,
++		.get =     rpi_cirrus_spdif_playback_get,
++		.put =     rpi_cirrus_spdif_playback_put,
++	},
++	{
++		.access =  SNDRV_CTL_ELEM_ACCESS_READ
++			   | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
++		.info =    rpi_cirrus_spdif_info,
++		.get =     rpi_cirrus_spdif_capture_get,
++	},
++	{
++		.access =  SNDRV_CTL_ELEM_ACCESS_READ,
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
++		.info =    rpi_cirrus_spdif_info,
++		.get =     rpi_cirrus_spdif_mask_get,
++	},
++	{
++		.access =  SNDRV_CTL_ELEM_ACCESS_READ
++			   | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE)
++				"Recovered Frequency",
++		.info =    rpi_cirrus_recovered_frequency_info,
++		.get =     rpi_cirrus_recovered_frequency_get,
++	},
++	SPDIF_FLAG_CTRL("Audio", WM8804_SPDSTAT, 0, 1),
++	SPDIF_FLAG_CTRL("Non-PCM", WM8804_SPDSTAT, 1, 0),
++	SPDIF_FLAG_CTRL("Copyright", WM8804_SPDSTAT, 2, 1),
++	SPDIF_FLAG_CTRL("De-Emphasis", WM8804_SPDSTAT, 3, 0),
++	SPDIF_FLAG_CTRL("Lock", WM8804_SPDSTAT, 6, 1),
++	SPDIF_FLAG_CTRL("Invalid", WM8804_INTSTAT, 1, 0),
++	SPDIF_FLAG_CTRL("TransErr", WM8804_INTSTAT, 3, 0),
++};
++
++static const char * const linein_micbias_texts[] = {
++	"off", "on",
++};
++
++static SOC_ENUM_SINGLE_VIRT_DECL(linein_micbias_enum,
++	linein_micbias_texts);
++
++static const struct snd_kcontrol_new linein_micbias_mux =
++	SOC_DAPM_ENUM("Route", linein_micbias_enum);
++
++static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w,
++	struct snd_kcontrol *kcontrol, int event);
++
++const struct snd_soc_dapm_widget rpi_cirrus_dapm_widgets[] = {
++	SND_SOC_DAPM_MIC("DMIC", NULL),
++	SND_SOC_DAPM_MIC("Headset Mic", NULL),
++	SND_SOC_DAPM_INPUT("Line Input"),
++	SND_SOC_DAPM_MIC("Line Input with Micbias", NULL),
++	SND_SOC_DAPM_MUX("Line Input Micbias", SND_SOC_NOPM, 0, 0,
++		&linein_micbias_mux),
++	SND_SOC_DAPM_INPUT("dummy SPDIF in"),
++	SND_SOC_DAPM_PGA_E("dummy SPDIFRX", SND_SOC_NOPM, 0, 0, NULL, 0,
++		rpi_cirrus_spdif_rx_enable_event,
++		SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
++	SND_SOC_DAPM_INPUT("Dummy Input"),
++	SND_SOC_DAPM_OUTPUT("Dummy Output"),
++};
++
++const struct snd_soc_dapm_route rpi_cirrus_dapm_routes[] = {
++	{ "IN1L", NULL, "Headset Mic" },
++	{ "IN1R", NULL, "Headset Mic" },
++	{ "Headset Mic", NULL, "MICBIAS1" },
++
++	{ "IN2L", NULL, "DMIC" },
++	{ "IN2R", NULL, "DMIC" },
++	{ "DMIC", NULL, "MICBIAS2" },
++
++	{ "IN3L", NULL, "Line Input Micbias" },
++	{ "IN3R", NULL, "Line Input Micbias" },
++
++	{ "Line Input Micbias", "off", "Line Input" },
++	{ "Line Input Micbias", "on", "Line Input with Micbias" },
++
++	/* Make sure MICVDD is enabled, otherwise we get noise */
++	{ "Line Input", NULL, "MICVDD" },
++	{ "Line Input with Micbias", NULL, "MICBIAS3" },
++
++	/* Dummy routes to check whether SPDIF RX is enabled or not */
++	{"dummy SPDIFRX", NULL, "dummy SPDIF in"},
++	{"AIFTX", NULL, "dummy SPDIFRX"},
++
++	/*
++	 * Dummy routes to keep wm5102 from staying off on
++	 * playback/capture if all mixers are off.
++	 */
++	{ "Dummy Output", NULL, "AIF1RX1" },
++	{ "Dummy Output", NULL, "AIF1RX2" },
++	{ "AIF1TX1", NULL, "Dummy Input" },
++	{ "AIF1TX2", NULL, "Dummy Input" },
++};
++
++static int rpi_cirrus_clear_flls(struct snd_soc_card *card,
++	struct snd_soc_component *wm5102_component) {
++
++	int ret1, ret2;
++
++	ret1 = snd_soc_component_set_pll(wm5102_component,
++		WM5102_FLL1, ARIZONA_FLL_SRC_NONE, 0, 0);
++	ret2 = snd_soc_component_set_pll(wm5102_component,
++		WM5102_FLL1_REFCLK, ARIZONA_FLL_SRC_NONE, 0, 0);
++
++	if (ret1) {
++		dev_warn(card->dev,
++			"setting FLL1 to zero failed: %d\n", ret1);
++		return ret1;
++	}
++	if (ret2) {
++		dev_warn(card->dev,
++			"setting FLL1_REFCLK to zero failed: %d\n", ret2);
++		return ret2;
++	}
++	return 0;
++}
++
++static int rpi_cirrus_set_fll(struct snd_soc_card *card,
++	struct snd_soc_component *wm5102_component, unsigned int clk_freq)
++{
++	int ret = snd_soc_component_set_pll(wm5102_component,
++		WM5102_FLL1,
++		ARIZONA_CLK_SRC_MCLK1,
++		WM8804_CLKOUT_HZ,
++		clk_freq);
++	if (ret)
++		dev_err(card->dev, "Failed to set FLL1 to %d: %d\n",
++			clk_freq, ret);
++
++	usleep_range(1000, 2000);
++	return ret;
++}
++
++static int rpi_cirrus_set_fll_refclk(struct snd_soc_card *card,
++	struct snd_soc_component *wm5102_component,
++	unsigned int clk_freq, unsigned int aif2_freq)
++{
++	int ret = snd_soc_component_set_pll(wm5102_component,
++		WM5102_FLL1_REFCLK,
++		ARIZONA_CLK_SRC_MCLK1,
++		WM8804_CLKOUT_HZ,
++		clk_freq);
++	if (ret) {
++		dev_err(card->dev,
++			"Failed to set FLL1_REFCLK to %d: %d\n",
++			clk_freq, ret);
++		return ret;
++	}
++
++	ret = snd_soc_component_set_pll(wm5102_component,
++		WM5102_FLL1,
++		ARIZONA_CLK_SRC_AIF2BCLK,
++		aif2_freq, clk_freq);
++	if (ret)
++		dev_err(card->dev,
++			"Failed to set FLL1 with Sync Clock %d to %d: %d\n",
++			aif2_freq, clk_freq, ret);
++
++	usleep_range(1000, 2000);
++	return ret;
++}
++
++static int rpi_cirrus_spdif_rx_enable_event(struct snd_soc_dapm_widget *w,
++	struct snd_kcontrol *kcontrol, int event)
++{
++	struct snd_soc_card *card = w->dapm->card;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_component *wm5102_component =
++		asoc_rtd_to_codec(get_wm5102_runtime(card), 0)->component;
++
++	unsigned int clk_freq, aif2_freq;
++	int ret = 0;
++
++	switch (event) {
++	case SND_SOC_DAPM_POST_PMU:
++		mutex_lock(&priv->lock);
++
++		/* Enable sync path in case of SPDIF capture use case */
++
++		clk_freq = calc_sysclk(priv->card_rate);
++		aif2_freq = 64 * priv->card_rate;
++
++		dev_dbg(card->dev,
++			"spdif_rx: changing FLL1 to use Ref Clock clk: %d spdif: %d\n",
++			clk_freq, aif2_freq);
++
++		ret = rpi_cirrus_clear_flls(card, wm5102_component);
++		if (ret) {
++			dev_err(card->dev, "spdif_rx: failed to clear FLLs\n");
++			goto out;
++		}
++
++		ret = rpi_cirrus_set_fll_refclk(card, wm5102_component,
++			clk_freq, aif2_freq);
++
++		if (ret) {
++			dev_err(card->dev, "spdif_rx: failed to set FLLs\n");
++			goto out;
++		}
++
++		/* set to negative to indicate we're doing spdif rx */
++		priv->fll1_freq = -clk_freq;
++		priv->sync_path_enable = 1;
++		break;
++
++	case SND_SOC_DAPM_POST_PMD:
++		mutex_lock(&priv->lock);
++		priv->sync_path_enable = 0;
++		break;
++
++	default:
++		return 0;
++	}
++
++out:
++	mutex_unlock(&priv->lock);
++	return ret;
++}
++
++static int rpi_cirrus_set_bias_level(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm,
++	enum snd_soc_bias_level level)
++{
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
++	struct snd_soc_component *wm5102_component =
++		asoc_rtd_to_codec(wm5102_runtime, 0)->component;
++
++	int ret = 0;
++	unsigned int clk_freq;
++
++	if (dapm->dev != asoc_rtd_to_codec(wm5102_runtime, 0)->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_PREPARE:
++		if (dapm->bias_level == SND_SOC_BIAS_ON)
++			break;
++
++		mutex_lock(&priv->lock);
++
++		if (!priv->sync_path_enable) {
++			clk_freq = calc_sysclk(priv->card_rate);
++
++			dev_dbg(card->dev,
++				"set_bias: changing FLL1 from %d to %d\n",
++				priv->fll1_freq, clk_freq);
++
++			ret = rpi_cirrus_set_fll(card,
++				wm5102_component, clk_freq);
++			if (ret)
++				dev_err(card->dev,
++					"set_bias: Failed to set FLL1\n");
++			else
++				priv->fll1_freq = clk_freq;
++		}
++		mutex_unlock(&priv->lock);
++		break;
++	default:
++		break;
++	}
++
++	return ret;
++}
++
++static int rpi_cirrus_set_bias_level_post(struct snd_soc_card *card,
++	struct snd_soc_dapm_context *dapm,
++	enum snd_soc_bias_level level)
++{
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
++	struct snd_soc_component *wm5102_component =
++		asoc_rtd_to_codec(wm5102_runtime, 0)->component;
++
++	if (dapm->dev != asoc_rtd_to_codec(wm5102_runtime, 0)->dev)
++		return 0;
++
++	switch (level) {
++	case SND_SOC_BIAS_STANDBY:
++		mutex_lock(&priv->lock);
++
++		dev_dbg(card->dev,
++			"set_bias_post: changing FLL1 from %d to off\n",
++				priv->fll1_freq);
++
++		if (rpi_cirrus_clear_flls(card, wm5102_component))
++			dev_err(card->dev,
++				"set_bias_post: failed to clear FLLs\n");
++		else
++			priv->fll1_freq = 0;
++
++		mutex_unlock(&priv->lock);
++
++		break;
++	default:
++		break;
++	}
++
++	return 0;
++}
++
++static int rpi_cirrus_set_wm8804_pll(struct snd_soc_card *card,
++	struct snd_soc_dai *wm8804_dai, unsigned int rate)
++{
++	int ret;
++
++	/* use 256fs */
++	unsigned int clk_freq = rate * 256;
++
++	ret = snd_soc_dai_set_pll(wm8804_dai, 0, 0,
++		WM8804_CLKOUT_HZ, clk_freq);
++	if (ret) {
++		dev_err(card->dev,
++			"Failed to set WM8804 PLL to %d: %d\n", clk_freq, ret);
++		return ret;
++	}
++
++	/* Set MCLK as PLL Output */
++	ret = snd_soc_dai_set_sysclk(wm8804_dai,
++		WM8804_TX_CLKSRC_PLL, clk_freq, 0);
++	if (ret) {
++		dev_err(card->dev,
++			"Failed to set MCLK as PLL Output: %d\n", ret);
++		return ret;
++	}
++
++	return ret;
++}
++
++static int rpi_cirrus_startup(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	unsigned int min_rate = min_rates[priv->min_rate_idx].value;
++	unsigned int max_rate = max_rates[priv->max_rate_idx].value;
++
++	if (min_rate || max_rate) {
++		if (max_rate == 0)
++			max_rate = UINT_MAX;
++
++		dev_dbg(card->dev,
++			"startup: limiting rate to %u-%u\n",
++			min_rate, max_rate);
++
++		snd_pcm_hw_constraint_minmax(substream->runtime,
++			SNDRV_PCM_HW_PARAM_RATE, min_rate, max_rate);
++	}
++
++	return 0;
++}
++
++static struct snd_soc_pcm_stream rpi_cirrus_dai_link2_params = {
++	.formats = SNDRV_PCM_FMTBIT_S24_LE,
++	.channels_min = 2,
++	.channels_max = 2,
++	.rate_min = RPI_CIRRUS_DEFAULT_RATE,
++	.rate_max = RPI_CIRRUS_DEFAULT_RATE,
++};
++
++static int rpi_cirrus_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_dai *bcm_i2s_dai = asoc_rtd_to_cpu(rtd, 0);
++	struct snd_soc_component *wm5102_component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_dai *wm8804_dai = asoc_rtd_to_codec(get_wm8804_runtime(card), 0);
++
++	int ret;
++
++	unsigned int width = snd_pcm_format_physical_width(
++		params_format(params));
++	unsigned int rate = params_rate(params);
++	unsigned int clk_freq = calc_sysclk(rate);
++
++	mutex_lock(&priv->lock);
++
++	dev_dbg(card->dev, "hw_params: setting rate to %d\n", rate);
++
++	ret = snd_soc_dai_set_bclk_ratio(bcm_i2s_dai, 2 * width);
++	if (ret) {
++		dev_err(card->dev, "set_bclk_ratio failed: %d\n", ret);
++		goto out;
++	}
++
++	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0x03, 0x03, 2, width);
++	if (ret) {
++		dev_err(card->dev, "set_tdm_slot failed: %d\n", ret);
++		goto out;
++	}
++
++	/* WM8804 supports sample rates from 32k only */
++	if (rate >= 32000) {
++		ret = rpi_cirrus_set_wm8804_pll(card, wm8804_dai, rate);
++		if (ret)
++			goto out;
++	}
++
++	ret = snd_soc_component_set_sysclk(wm5102_component,
++		ARIZONA_CLK_SYSCLK,
++		ARIZONA_CLK_SRC_FLL1,
++		clk_freq,
++		SND_SOC_CLOCK_IN);
++	if (ret) {
++		dev_err(card->dev, "Failed to set SYSCLK: %d\n", ret);
++		goto out;
++	}
++
++	if ((priv->fll1_freq > 0) && (priv->fll1_freq != clk_freq)) {
++		dev_dbg(card->dev,
++			"hw_params: changing FLL1 from %d to %d\n",
++			priv->fll1_freq, clk_freq);
++
++		if (rpi_cirrus_clear_flls(card, wm5102_component)) {
++			dev_err(card->dev, "hw_params: failed to clear FLLs\n");
++			goto out;
++		}
++
++		if (rpi_cirrus_set_fll(card, wm5102_component, clk_freq)) {
++			dev_err(card->dev, "hw_params: failed to set FLL\n");
++			goto out;
++		}
++
++		priv->fll1_freq = clk_freq;
++	}
++
++	priv->card_rate = rate;
++	rpi_cirrus_dai_link2_params.rate_min = rate;
++	rpi_cirrus_dai_link2_params.rate_max = rate;
++
++	priv->params_set |= 1 << substream->stream;
++
++out:
++	mutex_unlock(&priv->lock);
++
++	return ret;
++}
++
++static int rpi_cirrus_hw_free(struct snd_pcm_substream *substream)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_card *card = rtd->card;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_component *wm5102_component = asoc_rtd_to_codec(rtd, 0)->component;
++	int ret;
++	unsigned int old_params_set = priv->params_set;
++
++	priv->params_set &= ~(1 << substream->stream);
++
++	/* disable sysclk if this was the last open stream */
++	if (priv->params_set == 0 && old_params_set) {
++		dev_dbg(card->dev,
++			"hw_free: Setting SYSCLK to Zero\n");
++
++		ret = snd_soc_component_set_sysclk(wm5102_component,
++			ARIZONA_CLK_SYSCLK,
++			ARIZONA_CLK_SRC_FLL1,
++			0,
++			SND_SOC_CLOCK_IN);
++		if (ret)
++			dev_err(card->dev,
++				"hw_free: Failed to set SYSCLK to Zero: %d\n",
++				ret);
++	}
++	return 0;
++}
++
++static int rpi_cirrus_init_wm5102(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	int ret;
++
++	/* no 32kHz input, derive it from sysclk if needed  */
++	snd_soc_component_update_bits(component,
++			ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_SRC_MASK, 2);
++
++	if (rpi_cirrus_clear_flls(rtd->card, component))
++		dev_warn(rtd->card->dev,
++			"init_wm5102: failed to clear FLLs\n");
++
++	ret = snd_soc_component_set_sysclk(component,
++		ARIZONA_CLK_SYSCLK, ARIZONA_CLK_SRC_FLL1,
++		0, SND_SOC_CLOCK_IN);
++	if (ret) {
++		dev_err(rtd->card->dev,
++			"Failed to set SYSCLK to Zero: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++static int rpi_cirrus_init_wm8804(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_component *component = codec_dai->component;
++	struct snd_soc_card *card = rtd->card;
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	unsigned int val, mask;
++	int i, ret;
++
++	for (i = 0; i < 4; i++) {
++		val = snd_soc_component_read(component,
++			WM8804_SPDTX1 + i);
++		mask = (i == 3) ? 0x3f : 0xff;
++		priv->iec958_status[i] = val & mask;
++	}
++
++	/* Setup for 256fs */
++	ret = snd_soc_dai_set_clkdiv(codec_dai,
++		WM8804_MCLK_DIV, WM8804_MCLKDIV_256FS);
++	if (ret) {
++		dev_err(card->dev,
++			"init_wm8804: Failed to set MCLK_DIV to 256fs: %d\n",
++			ret);
++		return ret;
++	}
++
++	/* Output OSC on CLKOUT */
++	ret = snd_soc_dai_set_sysclk(codec_dai,
++		WM8804_CLKOUT_SRC_OSCCLK, WM8804_CLKOUT_HZ, 0);
++	if (ret)
++		dev_err(card->dev,
++			"init_wm8804: Failed to set CLKOUT as OSC Frequency: %d\n",
++			ret);
++
++	/* Init PLL with default samplerate */
++	ret = rpi_cirrus_set_wm8804_pll(card, codec_dai,
++		RPI_CIRRUS_DEFAULT_RATE);
++	if (ret)
++		dev_err(card->dev,
++			"init_wm8804: Failed to setup PLL for %dHz: %d\n",
++			RPI_CIRRUS_DEFAULT_RATE, ret);
++
++	return ret;
++}
++
++static struct snd_soc_ops rpi_cirrus_ops = {
++	.startup = rpi_cirrus_startup,
++	.hw_params = rpi_cirrus_hw_params,
++	.hw_free = rpi_cirrus_hw_free,
++};
++
++SND_SOC_DAILINK_DEFS(wm5102,
++     DAILINK_COMP_ARRAY(COMP_EMPTY()),
++     DAILINK_COMP_ARRAY(COMP_CODEC("wm5102-codec", "wm5102-aif1")),
++     DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++SND_SOC_DAILINK_DEFS(wm8804,
++     DAILINK_COMP_ARRAY(COMP_CPU("wm5102-aif2")),
++     DAILINK_COMP_ARRAY(COMP_CODEC("wm8804.1-003b", "wm8804-spdif")));
++
++static struct snd_soc_dai_link rpi_cirrus_dai[] = {
++	[DAI_WM5102] = {
++		.name		= "WM5102",
++		.stream_name	= "WM5102 AiFi",
++		.dai_fmt	=   SND_SOC_DAIFMT_I2S
++				  | SND_SOC_DAIFMT_NB_NF
++				  | SND_SOC_DAIFMT_CBM_CFM,
++		.ops		= &rpi_cirrus_ops,
++		.init		= rpi_cirrus_init_wm5102,
++		SND_SOC_DAILINK_REG(wm5102),
++	},
++	[DAI_WM8804] = {
++		.name		= "WM5102 SPDIF",
++		.stream_name	= "SPDIF Tx/Rx",
++		.dai_fmt	=   SND_SOC_DAIFMT_I2S
++				  | SND_SOC_DAIFMT_NB_NF
++				  | SND_SOC_DAIFMT_CBM_CFM,
++		.ignore_suspend = 1,
++		.params		= &rpi_cirrus_dai_link2_params,
++		.init		= rpi_cirrus_init_wm8804,
++		SND_SOC_DAILINK_REG(wm8804),
++	},
++};
++
++
++static int rpi_cirrus_late_probe(struct snd_soc_card *card)
++{
++	struct rpi_cirrus_priv *priv = snd_soc_card_get_drvdata(card);
++	struct snd_soc_pcm_runtime *wm5102_runtime = get_wm5102_runtime(card);
++	struct snd_soc_pcm_runtime *wm8804_runtime = get_wm8804_runtime(card);
++	int ret;
++
++	dev_dbg(card->dev, "iec958_bits: %02x %02x %02x %02x\n",
++		priv->iec958_status[0],
++		priv->iec958_status[1],
++		priv->iec958_status[2],
++		priv->iec958_status[3]);
++
++	ret = snd_soc_dai_set_sysclk(
++		asoc_rtd_to_codec(wm5102_runtime, 0), ARIZONA_CLK_SYSCLK, 0, 0);
++	if (ret) {
++		dev_err(card->dev,
++			"Failed to set WM5102 codec dai clk domain: %d\n", ret);
++		return ret;
++	}
++
++	ret = snd_soc_dai_set_sysclk(
++		asoc_rtd_to_cpu(wm8804_runtime, 0), ARIZONA_CLK_SYSCLK, 0, 0);
++	if (ret)
++		dev_err(card->dev,
++			"Failed to set WM8804 codec dai clk domain: %d\n", ret);
++
++	return ret;
++}
++
++/* audio machine driver */
++static struct snd_soc_card rpi_cirrus_card = {
++	.name			= "RPi-Cirrus",
++	.driver_name		= "RPiCirrus",
++	.owner			= THIS_MODULE,
++	.dai_link		= rpi_cirrus_dai,
++	.num_links		= ARRAY_SIZE(rpi_cirrus_dai),
++	.late_probe		= rpi_cirrus_late_probe,
++	.controls		= rpi_cirrus_controls,
++	.num_controls		= ARRAY_SIZE(rpi_cirrus_controls),
++	.dapm_widgets		= rpi_cirrus_dapm_widgets,
++	.num_dapm_widgets	= ARRAY_SIZE(rpi_cirrus_dapm_widgets),
++	.dapm_routes		= rpi_cirrus_dapm_routes,
++	.num_dapm_routes	= ARRAY_SIZE(rpi_cirrus_dapm_routes),
++	.set_bias_level		= rpi_cirrus_set_bias_level,
++	.set_bias_level_post	= rpi_cirrus_set_bias_level_post,
++};
++
++static int rpi_cirrus_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	struct rpi_cirrus_priv *priv;
++	struct device_node *i2s_node;
++
++	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
++	if (!priv)
++		return -ENOMEM;
++
++	priv->min_rate_idx = 1; /* min samplerate 32kHz */
++	priv->card_rate = RPI_CIRRUS_DEFAULT_RATE;
++
++	mutex_init(&priv->lock);
++
++	snd_soc_card_set_drvdata(&rpi_cirrus_card, priv);
++
++	if (!pdev->dev.of_node)
++		return -ENODEV;
++
++	i2s_node = of_parse_phandle(
++			pdev->dev.of_node, "i2s-controller", 0);
++	if (!i2s_node) {
++		dev_err(&pdev->dev, "i2s-controller missing in DT\n");
++		return -ENODEV;
++	}
++
++	rpi_cirrus_dai[DAI_WM5102].cpus->of_node = i2s_node;
++	rpi_cirrus_dai[DAI_WM5102].platforms->of_node = i2s_node;
++
++	rpi_cirrus_card.dev = &pdev->dev;
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &rpi_cirrus_card);
++	if (ret) {
++		if (ret == -EPROBE_DEFER)
++			dev_dbg(&pdev->dev,
++				"register card requested probe deferral\n");
++		else
++			dev_err(&pdev->dev,
++				"Failed to register card: %d\n", ret);
++	}
++
++	return ret;
++}
++
++static const struct of_device_id rpi_cirrus_of_match[] = {
++	{ .compatible = "wlf,rpi-cirrus", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, rpi_cirrus_of_match);
++
++static struct platform_driver rpi_cirrus_driver = {
++	.driver	= {
++		.name   = "snd-rpi-cirrus",
++		.of_match_table = of_match_ptr(rpi_cirrus_of_match),
++	},
++	.probe	= rpi_cirrus_probe,
++};
++
++module_platform_driver(rpi_cirrus_driver);
++
++MODULE_AUTHOR("Matthias Reichl <hias@horus.com>");
++MODULE_DESCRIPTION("ASoC driver for Cirrus Logic Audio Card");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/soc/bcm/rpi-proto.c
+@@ -0,0 +1,147 @@
++/*
++ * ASoC driver for PROTO AudioCODEC (with a WM8731)
++ * connected to a Raspberry Pi
++ *
++ * Author:      Florian Meier, <koalo@koalo.de>
++ *	      Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/wm8731.h"
++
++static const unsigned int wm8731_rates_12288000[] = {
++	8000, 32000, 48000, 96000,
++};
++
++static struct snd_pcm_hw_constraint_list wm8731_constraints_12288000 = {
++	.list = wm8731_rates_12288000,
++	.count = ARRAY_SIZE(wm8731_rates_12288000),
++};
++
++static int snd_rpi_proto_startup(struct snd_pcm_substream *substream)
++{
++	/* Setup constraints, because there is a 12.288 MHz XTAL on the board */
++	snd_pcm_hw_constraint_list(substream->runtime, 0,
++				SNDRV_PCM_HW_PARAM_RATE,
++				&wm8731_constraints_12288000);
++	return 0;
++}
++
++static int snd_rpi_proto_hw_params(struct snd_pcm_substream *substream,
++				       struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	int sysclk = 12288000; /* This is fixed on this board */
++
++	/* Set proto bclk */
++	int ret = snd_soc_dai_set_bclk_ratio(cpu_dai,32*2);
++	if (ret < 0){
++		dev_err(rtd->card->dev,
++				"Failed to set BCLK ratio %d\n", ret);
++		return ret;
++	}
++
++	/* Set proto sysclk */
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
++			sysclk, SND_SOC_CLOCK_IN);
++	if (ret < 0) {
++		dev_err(rtd->card->dev,
++				"Failed to set WM8731 SYSCLK: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_proto_ops = {
++	.startup = snd_rpi_proto_startup,
++	.hw_params = snd_rpi_proto_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_proto,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.1-001a", "wm8731-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_proto_dai[] = {
++{
++	.name		= "WM8731",
++	.stream_name	= "WM8731 HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S
++				| SND_SOC_DAIFMT_NB_NF
++				| SND_SOC_DAIFMT_CBM_CFM,
++	.ops		= &snd_rpi_proto_ops,
++	SND_SOC_DAILINK_REG(rpi_proto),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_proto = {
++	.name		= "snd_rpi_proto",
++	.owner		= THIS_MODULE,
++	.dai_link	= snd_rpi_proto_dai,
++	.num_links	= ARRAY_SIZE(snd_rpi_proto_dai),
++};
++
++static int snd_rpi_proto_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++
++	snd_rpi_proto.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &snd_rpi_proto_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++				            "i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_proto);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_proto_of_match[] = {
++	{ .compatible = "rpi,rpi-proto", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_proto_of_match);
++
++static struct platform_driver snd_rpi_proto_driver = {
++	.driver = {
++		.name   = "snd-rpi-proto",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_proto_of_match,
++	},
++	.probe	  = snd_rpi_proto_probe,
++};
++
++module_platform_driver(snd_rpi_proto_driver);
++
++MODULE_AUTHOR("Florian Meier");
++MODULE_DESCRIPTION("ASoC Driver for Raspberry Pi connected to PROTO board (WM8731)");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/soc/bcm/rpi-simple-soundcard.c
+@@ -0,0 +1,339 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * rpi-simple-soundcard.c -- ALSA SoC Raspberry Pi soundcard.
++ *
++ * Copyright (C) 2018 Raspberry Pi.
++ *
++ * Authors: Tim Gover <tim.gover@raspberrypi.org>
++ *
++ * Based on code:
++ * hifiberry_amp.c, hifiberry_dac.c, rpi-dac.c
++ * by Florian Meier <florian.meier@koalo.de>
++ *
++ * googlevoicehat-soundcard.c
++ * by Peter Malkin <petermalkin@google.com>
++ *
++ * adau1977-adc.c
++ * by Andrey Grodzovsky <andrey2805@gmail.com>
++ *
++ * merus-amp.c
++ * by Ariel Muszkat <ariel.muszkat@gmail.com>
++ *		Jorgen Kragh Jakobsen <jorgen.kraghjakobsen@infineon.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++
++/* Parameters for generic RPI functions */
++struct snd_rpi_simple_drvdata {
++	struct snd_soc_dai_link *dai;
++	const char* card_name;
++	unsigned int fixed_bclk_ratio;
++};
++
++static int snd_rpi_simple_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_rpi_simple_drvdata *drvdata =
++		snd_soc_card_get_drvdata(rtd->card);
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++
++	if (drvdata->fixed_bclk_ratio > 0)
++		return snd_soc_dai_set_bclk_ratio(cpu_dai,
++				drvdata->fixed_bclk_ratio);
++
++	return 0;
++}
++
++static int snd_rpi_simple_hw_params(struct snd_pcm_substream *substream,
++		struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	struct snd_rpi_simple_drvdata *drvdata;
++	unsigned int sample_bits;
++
++	drvdata = snd_soc_card_get_drvdata(rtd->card);
++
++	if (drvdata->fixed_bclk_ratio > 0)
++		return 0; // BCLK is configured in .init
++
++	/* The simple drivers just set the bclk_ratio to sample_bits * 2 so
++	 * hard-code this for now. More complex drivers could just replace
++	 * the hw_params routine.
++	 */
++	sample_bits = snd_pcm_format_physical_width(params_format(params));
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
++}
++
++static struct snd_soc_ops snd_rpi_simple_ops = {
++	.hw_params = snd_rpi_simple_hw_params,
++};
++
++enum adau1977_clk_id {
++	ADAU1977_SYSCLK,
++};
++
++enum adau1977_sysclk_src {
++	ADAU1977_SYSCLK_SRC_MCLK,
++	ADAU1977_SYSCLK_SRC_LRCLK,
++};
++
++static int adau1977_init(struct snd_soc_pcm_runtime *rtd)
++{
++	int ret;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0, 0, 0, 0);
++	if (ret < 0)
++		return ret;
++
++	return snd_soc_component_set_sysclk(codec_dai->component,
++			ADAU1977_SYSCLK, ADAU1977_SYSCLK_SRC_MCLK,
++			11289600, SND_SOC_CLOCK_IN);
++}
++
++SND_SOC_DAILINK_DEFS(adau1977,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("adau1977.1-0011", "adau1977-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_rpi_adau1977_dai[] = {
++	{
++	.name           = "adau1977",
++	.stream_name    = "ADAU1977",
++	.init           = adau1977_init,
++	.dai_fmt = SND_SOC_DAIFMT_I2S |
++		SND_SOC_DAIFMT_NB_NF |
++		SND_SOC_DAIFMT_CBM_CFM,
++	SND_SOC_DAILINK_REG(adau1977),
++	},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_adau1977 = {
++	.card_name = "snd_rpi_adau1977_adc",
++	.dai       = snd_rpi_adau1977_dai,
++};
++
++SND_SOC_DAILINK_DEFS(gvchat,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("voicehat-codec", "voicehat-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_googlevoicehat_soundcard_dai[] = {
++{
++	.name           = "Google voiceHAT SoundCard",
++	.stream_name    = "Google voiceHAT SoundCard HiFi",
++	.dai_fmt        =  SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	SND_SOC_DAILINK_REG(gvchat),
++},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_googlevoicehat = {
++	.card_name = "snd_rpi_googlevoicehat_soundcard",
++	.dai       = snd_googlevoicehat_soundcard_dai,
++};
++
++SND_SOC_DAILINK_DEFS(hifiberry_dacplusdsp,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("dacplusdsp-codec", "dacplusdsp-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_hifiberrydacplusdsp_soundcard_dai[] = {
++{
++	.name           = "Hifiberry DAC+DSP SoundCard",
++	.stream_name    = "Hifiberry DAC+DSP SoundCard HiFi",
++	.dai_fmt        =  SND_SOC_DAIFMT_I2S |
++			   SND_SOC_DAIFMT_NB_NF |
++			   SND_SOC_DAIFMT_CBS_CFS,
++	SND_SOC_DAILINK_REG(hifiberry_dacplusdsp),
++},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_hifiberrydacplusdsp = {
++	.card_name = "snd_rpi_hifiberrydacplusdsp_soundcard",
++	.dai       = snd_hifiberrydacplusdsp_soundcard_dai,
++};
++
++SND_SOC_DAILINK_DEFS(hifiberry_amp,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("tas5713.1-001b", "tas5713-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_hifiberry_amp_dai[] = {
++	{
++		.name           = "HifiBerry AMP",
++		.stream_name    = "HifiBerry AMP HiFi",
++		.dai_fmt        = SND_SOC_DAIFMT_I2S |
++					SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBS_CFS,
++		SND_SOC_DAILINK_REG(hifiberry_amp),
++	},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_hifiberry_amp = {
++	.card_name        = "snd_rpi_hifiberry_amp",
++	.dai              = snd_hifiberry_amp_dai,
++	.fixed_bclk_ratio = 64,
++};
++
++SND_SOC_DAILINK_DEFS(hifiberry_dac,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm5102a-codec", "pcm5102a-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_hifiberry_dac_dai[] = {
++	{
++		.name           = "HifiBerry DAC",
++		.stream_name    = "HifiBerry DAC HiFi",
++		.dai_fmt        = SND_SOC_DAIFMT_I2S |
++					SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBS_CFS,
++		SND_SOC_DAILINK_REG(hifiberry_dac),
++	},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_hifiberry_dac = {
++	.card_name = "snd_rpi_hifiberry_dac",
++	.dai       = snd_hifiberry_dac_dai,
++};
++
++SND_SOC_DAILINK_DEFS(rpi_dac,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm1794a-codec", "pcm1794a-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_rpi_dac_dai[] = {
++{
++	.name		= "RPi-DAC",
++	.stream_name	= "RPi-DAC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBS_CFS,
++	SND_SOC_DAILINK_REG(rpi_dac),
++},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_rpi_dac = {
++	.card_name        = "snd_rpi_rpi_dac",
++	.dai              = snd_rpi_dac_dai,
++	.fixed_bclk_ratio = 64,
++};
++
++SND_SOC_DAILINK_DEFS(merus_amp,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("ma120x0p.1-0020","ma120x0p-amp")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_merus_amp_dai[] = {
++	{
++		.name           = "MerusAmp",
++		.stream_name    = "Merus Audio Amp",
++		.dai_fmt        = SND_SOC_DAIFMT_I2S |
++					SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBS_CFS,
++		SND_SOC_DAILINK_REG(merus_amp),
++	},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_merus_amp = {
++	.card_name        = "snd_rpi_merus_amp",
++	.dai              = snd_merus_amp_dai,
++	.fixed_bclk_ratio = 64,
++};
++
++static const struct of_device_id snd_rpi_simple_of_match[] = {
++	{ .compatible = "adi,adau1977-adc",
++		.data = (void *) &drvdata_adau1977 },
++	{ .compatible = "googlevoicehat,googlevoicehat-soundcard",
++		.data = (void *) &drvdata_googlevoicehat },
++	{ .compatible = "hifiberrydacplusdsp,hifiberrydacplusdsp-soundcard",
++		.data = (void *) &drvdata_hifiberrydacplusdsp },
++	{ .compatible = "hifiberry,hifiberry-amp",
++		.data = (void *) &drvdata_hifiberry_amp },
++	{ .compatible = "hifiberry,hifiberry-dac",
++		.data = (void *) &drvdata_hifiberry_dac },
++	{ .compatible = "rpi,rpi-dac", &drvdata_rpi_dac},
++	{ .compatible = "merus,merus-amp",
++		.data = (void *) &drvdata_merus_amp },
++	{},
++};
++
++static struct snd_soc_card snd_rpi_simple = {
++	.driver_name  = "RPi-simple",
++	.owner        = THIS_MODULE,
++	.dai_link     = NULL,
++	.num_links    = 1, /* Only a single DAI supported at the moment */
++};
++
++static int snd_rpi_simple_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	const struct of_device_id *of_id;
++
++	snd_rpi_simple.dev = &pdev->dev;
++	of_id = of_match_node(snd_rpi_simple_of_match, pdev->dev.of_node);
++
++	if (pdev->dev.of_node && of_id->data) {
++		struct device_node *i2s_node;
++		struct snd_rpi_simple_drvdata *drvdata =
++			(struct snd_rpi_simple_drvdata *) of_id->data;
++		struct snd_soc_dai_link *dai = drvdata->dai;
++
++		snd_soc_card_set_drvdata(&snd_rpi_simple, drvdata);
++
++		/* More complex drivers might override individual functions */
++		if (!dai->init)
++			dai->init = snd_rpi_simple_init;
++		if (!dai->ops)
++			dai->ops = &snd_rpi_simple_ops;
++
++		snd_rpi_simple.name = drvdata->card_name;
++
++		snd_rpi_simple.dai_link = dai;
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++				"i2s-controller", 0);
++		if (!i2s_node) {
++			pr_err("Failed to find i2s-controller DT node\n");
++			return -ENODEV;
++		}
++
++		dai->cpus->of_node = i2s_node;
++		dai->platforms->of_node = i2s_node;
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_simple);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "Failed to register card %d\n", ret);
++
++	return ret;
++}
++
++static struct platform_driver snd_rpi_simple_driver = {
++	.driver = {
++		.name   = "snd-rpi-simple",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_simple_of_match,
++	},
++	.probe          = snd_rpi_simple_probe,
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_simple_of_match);
++
++module_platform_driver(snd_rpi_simple_driver);
++
++MODULE_AUTHOR("Tim Gover <tim.gover@raspberrypi.org>");
++MODULE_DESCRIPTION("ASoC Raspberry Pi simple soundcard driver ");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/rpi-wm8804-soundcard.c
+@@ -0,0 +1,410 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * rpi--wm8804.c -- ALSA SoC Raspberry Pi soundcard.
++ *
++ * Copyright (C) 2018 Raspberry Pi.
++ *
++ * Authors: Tim Gover <tim.gover@raspberrypi.org>
++ *
++ * Generic driver for Pi Hat WM8804 digi sounds cards
++ *
++ * Based upon code from:
++ * justboom-digi.c
++ * by Milan Neskovic <info@justboom.co>
++ *
++ * iqaudio_digi.c
++ * by Daniel Matuschek <info@crazy-audio.com>
++ *
++ * allo-digione.c
++ * by Baswaraj <jaikumar@cem-solutions.net>
++ *
++ * hifiberry-digi.c
++ * Daniel Matuschek <info@crazy-audio.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/module.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++
++#include "../codecs/wm8804.h"
++
++struct wm8804_clk_cfg {
++	unsigned int sysclk_freq;
++	unsigned int mclk_freq;
++	unsigned int mclk_div;
++};
++
++/* Parameters for generic functions */
++struct snd_rpi_wm8804_drvdata {
++	/* Required - pointer to the DAI structure */
++	struct snd_soc_dai_link *dai;
++	/* Required - snd_soc_card name */
++	const char *card_name;
++	/* Optional DT node names if card info is defined in DT */
++	const char *card_name_dt;
++	const char *dai_name_dt;
++	const char *dai_stream_name_dt;
++	/* Optional probe extension - called prior to register_card */
++	int (*probe)(struct platform_device *pdev);
++};
++
++static struct gpio_desc *snd_clk44gpio;
++static struct gpio_desc *snd_clk48gpio;
++static int wm8804_samplerate = 0;
++
++/* Forward declarations */
++static struct snd_soc_dai_link snd_allo_digione_dai[];
++static struct snd_soc_card snd_rpi_wm8804;
++
++
++#define CLK_44EN_RATE 22579200UL
++#define CLK_48EN_RATE 24576000UL
++
++static unsigned int snd_rpi_wm8804_enable_clock(unsigned int samplerate)
++{
++	switch (samplerate) {
++	case 11025:
++	case 22050:
++	case 44100:
++	case 88200:
++	case 176400:
++		gpiod_set_value_cansleep(snd_clk44gpio, 1);
++		gpiod_set_value_cansleep(snd_clk48gpio, 0);
++		return CLK_44EN_RATE;
++	default:
++		gpiod_set_value_cansleep(snd_clk48gpio, 1);
++		gpiod_set_value_cansleep(snd_clk44gpio, 0);
++		return CLK_48EN_RATE;
++	}
++}
++
++static void snd_rpi_wm8804_clk_cfg(unsigned int samplerate,
++		struct wm8804_clk_cfg *clk_cfg)
++{
++	clk_cfg->sysclk_freq = 27000000;
++
++	if (samplerate <= 96000 ||
++	    snd_rpi_wm8804.dai_link == snd_allo_digione_dai) {
++		clk_cfg->mclk_freq = samplerate * 256;
++		clk_cfg->mclk_div = WM8804_MCLKDIV_256FS;
++	} else {
++		clk_cfg->mclk_freq = samplerate * 128;
++		clk_cfg->mclk_div = WM8804_MCLKDIV_128FS;
++	}
++
++	if (!(IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio)))
++		clk_cfg->sysclk_freq = snd_rpi_wm8804_enable_clock(samplerate);
++}
++
++static int snd_rpi_wm8804_hw_params(struct snd_pcm_substream *substream,
++		struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
++	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	int sampling_freq = 1;
++	int ret;
++	struct wm8804_clk_cfg clk_cfg;
++	int samplerate = params_rate(params);
++
++	if (samplerate == wm8804_samplerate)
++		return 0;
++
++	/* clear until all clocks are setup properly */
++	wm8804_samplerate = 0;
++
++	snd_rpi_wm8804_clk_cfg(samplerate, &clk_cfg);
++
++	pr_debug("%s samplerate: %d mclk_freq: %u mclk_div: %u sysclk: %u\n",
++			__func__, samplerate, clk_cfg.mclk_freq,
++			clk_cfg.mclk_div, clk_cfg.sysclk_freq);
++
++	switch (samplerate) {
++	case 32000:
++		sampling_freq = 0x03;
++		break;
++	case 44100:
++		sampling_freq = 0x00;
++		break;
++	case 48000:
++		sampling_freq = 0x02;
++		break;
++	case 88200:
++		sampling_freq = 0x08;
++		break;
++	case 96000:
++		sampling_freq = 0x0a;
++		break;
++	case 176400:
++		sampling_freq = 0x0c;
++		break;
++	case 192000:
++		sampling_freq = 0x0e;
++		break;
++	default:
++		dev_err(rtd->card->dev,
++		"Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++		samplerate);
++	}
++
++	snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, clk_cfg.mclk_div);
++	snd_soc_dai_set_pll(codec_dai, 0, 0,
++			clk_cfg.sysclk_freq, clk_cfg.mclk_freq);
++
++	ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++			clk_cfg.sysclk_freq, SND_SOC_CLOCK_OUT);
++	if (ret < 0) {
++		dev_err(rtd->card->dev,
++		"Failed to set WM8804 SYSCLK: %d\n", ret);
++		return ret;
++	}
++
++	wm8804_samplerate = samplerate;
++
++	/* set sampling frequency status bits */
++	snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f,
++			sampling_freq);
++
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++
++static struct snd_soc_ops snd_rpi_wm8804_ops = {
++	.hw_params = snd_rpi_wm8804_hw_params,
++};
++
++SND_SOC_DAILINK_DEFS(justboom_digi,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_justboom_digi_dai[] = {
++{
++	.name        = "JustBoom Digi",
++	.stream_name = "JustBoom Digi HiFi",
++	SND_SOC_DAILINK_REG(justboom_digi),
++},
++};
++
++static struct snd_rpi_wm8804_drvdata drvdata_justboom_digi = {
++	.card_name            = "snd_rpi_justboom_digi",
++	.dai                  = snd_justboom_digi_dai,
++};
++
++SND_SOC_DAILINK_DEFS(iqaudio_digi,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_iqaudio_digi_dai[] = {
++{
++	.name        = "IQAudIO Digi",
++	.stream_name = "IQAudIO Digi HiFi",
++	SND_SOC_DAILINK_REG(iqaudio_digi),
++},
++};
++
++static struct snd_rpi_wm8804_drvdata drvdata_iqaudio_digi = {
++	.card_name          = "IQAudIODigi",
++	.dai                = snd_iqaudio_digi_dai,
++	.card_name_dt       = "wm8804-digi,card-name",
++	.dai_name_dt        = "wm8804-digi,dai-name",
++	.dai_stream_name_dt = "wm8804-digi,dai-stream-name",
++};
++
++static int snd_allo_digione_probe(struct platform_device *pdev)
++{
++	pr_debug("%s\n", __func__);
++
++	if (IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio)) {
++		dev_err(&pdev->dev, "devm_gpiod_get() failed\n");
++		return -EINVAL;
++	}
++	return 0;
++}
++
++SND_SOC_DAILINK_DEFS(allo_digione,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_allo_digione_dai[] = {
++{
++	.name        = "Allo DigiOne",
++	.stream_name = "Allo DigiOne HiFi",
++	SND_SOC_DAILINK_REG(allo_digione),
++},
++};
++
++static struct snd_rpi_wm8804_drvdata drvdata_allo_digione = {
++	.card_name = "snd_allo_digione",
++	.dai       = snd_allo_digione_dai,
++	.probe     = snd_allo_digione_probe,
++};
++
++SND_SOC_DAILINK_DEFS(hifiberry_digi,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_hifiberry_digi_dai[] = {
++{
++	.name        = "HifiBerry Digi",
++	.stream_name = "HifiBerry Digi HiFi",
++	SND_SOC_DAILINK_REG(hifiberry_digi),
++},
++};
++
++static int snd_hifiberry_digi_probe(struct platform_device *pdev)
++{
++	pr_debug("%s\n", __func__);
++
++	if (IS_ERR(snd_clk44gpio) || IS_ERR(snd_clk48gpio))
++		return 0;
++
++	snd_hifiberry_digi_dai->name = "HiFiBerry Digi+ Pro";
++	snd_hifiberry_digi_dai->stream_name = "HiFiBerry Digi+ Pro HiFi";
++	return 0;
++}
++
++static struct snd_rpi_wm8804_drvdata drvdata_hifiberry_digi = {
++	.card_name = "snd_rpi_hifiberry_digi",
++	.dai       = snd_hifiberry_digi_dai,
++	.probe     = snd_hifiberry_digi_probe,
++};
++
++static const struct of_device_id snd_rpi_wm8804_of_match[] = {
++	{ .compatible = "justboom,justboom-digi",
++		.data = (void *) &drvdata_justboom_digi },
++	{ .compatible = "iqaudio,wm8804-digi",
++		.data = (void *) &drvdata_iqaudio_digi },
++	{ .compatible = "allo,allo-digione",
++		.data = (void *) &drvdata_allo_digione },
++	{ .compatible = "hifiberry,hifiberry-digi",
++		.data = (void *) &drvdata_hifiberry_digi },
++	{},
++};
++
++static struct snd_soc_card snd_rpi_wm8804 = {
++	.driver_name  = "RPi-WM8804",
++	.owner        = THIS_MODULE,
++	.dai_link     = NULL,
++	.num_links    = 1,
++};
++
++static int snd_rpi_wm8804_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	const struct of_device_id *of_id;
++
++	snd_rpi_wm8804.dev = &pdev->dev;
++	of_id = of_match_node(snd_rpi_wm8804_of_match, pdev->dev.of_node);
++
++	if (pdev->dev.of_node && of_id->data) {
++		struct device_node *i2s_node;
++		struct snd_rpi_wm8804_drvdata *drvdata =
++			(struct snd_rpi_wm8804_drvdata *) of_id->data;
++		struct snd_soc_dai_link *dai = drvdata->dai;
++
++		snd_soc_card_set_drvdata(&snd_rpi_wm8804, drvdata);
++
++		if (!dai->ops)
++			dai->ops = &snd_rpi_wm8804_ops;
++		if (!dai->codecs->dai_name)
++			dai->codecs->dai_name = "wm8804-spdif";
++		if (!dai->codecs->name)
++			dai->codecs->name = "wm8804.1-003b";
++		if (!dai->dai_fmt)
++			dai->dai_fmt = SND_SOC_DAIFMT_I2S |
++				SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBM_CFM;
++
++		snd_rpi_wm8804.dai_link = dai;
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++				"i2s-controller", 0);
++		if (!i2s_node) {
++			pr_err("Failed to find i2s-controller DT node\n");
++			return -ENODEV;
++		}
++
++		snd_rpi_wm8804.name = drvdata->card_name;
++
++		/* If requested by in drvdata get card & DAI names from DT */
++		if (drvdata->card_name_dt)
++			of_property_read_string(i2s_node,
++					drvdata->card_name_dt,
++					&snd_rpi_wm8804.name);
++
++		if (drvdata->dai_name_dt)
++			of_property_read_string(i2s_node,
++					drvdata->dai_name_dt,
++					&dai->name);
++
++		if (drvdata->dai_stream_name_dt)
++			of_property_read_string(i2s_node,
++					drvdata->dai_stream_name_dt,
++					&dai->stream_name);
++
++		dai->cpus->of_node = i2s_node;
++		dai->platforms->of_node = i2s_node;
++
++		/*
++		 * clk44gpio and clk48gpio are not required by all cards so
++		 * don't check the error status.
++		 */
++		snd_clk44gpio =
++			devm_gpiod_get(&pdev->dev, "clock44", GPIOD_OUT_LOW);
++
++		snd_clk48gpio =
++			devm_gpiod_get(&pdev->dev, "clock48", GPIOD_OUT_LOW);
++
++		if (drvdata->probe) {
++			ret = drvdata->probe(pdev);
++			if (ret < 0) {
++				dev_err(&pdev->dev, "Custom probe failed %d\n",
++						ret);
++				return ret;
++			}
++		}
++
++		pr_debug("%s card: %s dai: %s stream: %s\n", __func__,
++				snd_rpi_wm8804.name,
++				dai->name, dai->stream_name);
++	}
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_wm8804);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev, "Failed to register card %d\n", ret);
++
++	return ret;
++}
++
++static struct platform_driver snd_rpi_wm8804_driver = {
++	.driver = {
++		.name           = "snd-rpi-wm8804",
++		.owner          = THIS_MODULE,
++		.of_match_table = snd_rpi_wm8804_of_match,
++	},
++	.probe  = snd_rpi_wm8804_probe,
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_wm8804_of_match);
++
++module_platform_driver(snd_rpi_wm8804_driver);
++
++MODULE_AUTHOR("Tim Gover <tim.gover@raspberrypi.org>");
++MODULE_DESCRIPTION("ASoC Raspberry Pi Hat generic digi driver for WM8804 based cards");
++MODULE_LICENSE("GPL v2");
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -100,12 +100,14 @@ config SND_SOC_ALL_CODECS
+ 	imply SND_SOC_ICS43432
+ 	imply SND_SOC_INNO_RK3036
+ 	imply SND_SOC_ISABELLE
++	imply SND_SOC_I_SABRE_CODEC
+ 	imply SND_SOC_JZ4740_CODEC
+ 	imply SND_SOC_JZ4725B_CODEC
+ 	imply SND_SOC_JZ4770_CODEC
+ 	imply SND_SOC_LM4857
+ 	imply SND_SOC_LM49453
+ 	imply SND_SOC_LOCHNAGAR_SC
++	imply SND_SOC_MA120X0P
+ 	imply SND_SOC_MAX98088
+ 	imply SND_SOC_MAX98090
+ 	imply SND_SOC_MAX98095
+@@ -142,6 +144,7 @@ config SND_SOC_ALL_CODECS
+ 	imply SND_SOC_PCM179X_SPI
+ 	imply SND_SOC_PCM186X_I2C
+ 	imply SND_SOC_PCM186X_SPI
++	imply SND_SOC_PCM1794A
+ 	imply SND_SOC_PCM3008
+ 	imply SND_SOC_PCM3060_I2C
+ 	imply SND_SOC_PCM3060_SPI
+@@ -206,6 +209,7 @@ config SND_SOC_ALL_CODECS
+ 	imply SND_SOC_TLV320ADCX140
+ 	imply SND_SOC_TLV320AIC23_I2C
+ 	imply SND_SOC_TLV320AIC23_SPI
++	imply SND_SOC_TAS5713
+ 	imply SND_SOC_TLV320AIC26
+ 	imply SND_SOC_TLV320AIC31XX
+ 	imply SND_SOC_TLV320AIC32X4_I2C
+@@ -343,12 +347,12 @@ config SND_SOC_AD193X
+ 	tristate
+ 
+ config SND_SOC_AD193X_SPI
+-	tristate
++	tristate "Analog Devices AU193X CODEC - SPI"
+ 	depends on SPI_MASTER
+ 	select SND_SOC_AD193X
+ 
+ config SND_SOC_AD193X_I2C
+-	tristate
++	tristate "Analog Devices AU193X CODEC - I2C"
+ 	depends on I2C
+ 	select SND_SOC_AD193X
+ 
+@@ -804,7 +808,7 @@ config SND_SOC_HDAC_HDA
+ 	select SND_HDA
+ 
+ config SND_SOC_ICS43432
+-	tristate
++	tristate "InvenSense ICS43432 I2S microphone codec"
+ 
+ config SND_SOC_INNO_RK3036
+ 	tristate "Inno codec driver for RK3036 SoC"
+@@ -825,6 +829,13 @@ config SND_SOC_LOCHNAGAR_SC
+ 	  This driver support the sound card functionality of the Cirrus
+ 	  Logic Lochnagar audio development board.
+ 
++config SND_SOC_MA120X0P
++	tristate "Infineon Merus(TM) MA120X0P Multilevel Class-D Audio amplifiers"
++	depends on I2C
++	help
++		Enable support for Infineon MA120X0P Multilevel Class-D audio power
++		amplifiers.
++
+ config SND_SOC_MADERA
+ 	tristate
+ 	default y if SND_SOC_CS47L15=y
+@@ -1125,6 +1136,10 @@ config SND_SOC_RT5616
+ 	tristate "Realtek RT5616 CODEC"
+ 	depends on I2C
+ 
++config SND_SOC_PCM1794A
++	tristate
++	depends on I2C
++
+ config SND_SOC_RT5631
+ 	tristate "Realtek ALC5631/RT5631 CODEC"
+ 	depends on I2C
+@@ -1346,6 +1361,9 @@ config SND_SOC_TFA9879
+ 	tristate "NXP Semiconductors TFA9879 amplifier"
+ 	depends on I2C
+ 
++config SND_SOC_TAS5713
++	tristate
++
+ config SND_SOC_TLV320AIC23
+ 	tristate
+ 
+@@ -1784,4 +1802,8 @@ config SND_SOC_TPA6130A2
+ 	tristate "Texas Instruments TPA6130A2 headphone amplifier"
+ 	depends on I2C
+ 
++config SND_SOC_I_SABRE_CODEC
++	tristate "Audiophonics I-SABRE Codec"
++	depends on I2C
++
+ endmenu
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -96,6 +96,7 @@ snd-soc-hdac-hda-objs := hdac_hda.o
+ snd-soc-ics43432-objs := ics43432.o
+ snd-soc-inno-rk3036-objs := inno_rk3036.o
+ snd-soc-isabelle-objs := isabelle.o
++snd-soc-i-sabre-codec-objs := i-sabre-codec.o
+ snd-soc-jz4740-codec-objs := jz4740.o
+ snd-soc-jz4725b-codec-objs := jz4725b.o
+ snd-soc-jz4770-codec-objs := jz4770.o
+@@ -103,6 +104,7 @@ snd-soc-l3-objs := l3.o
+ snd-soc-lm4857-objs := lm4857.o
+ snd-soc-lm49453-objs := lm49453.o
+ snd-soc-lochnagar-sc-objs := lochnagar-sc.o
++snd-soc-ma120x0p-objs := ma120x0p.o
+ snd-soc-madera-objs := madera.o
+ snd-soc-max9759-objs := max9759.o
+ snd-soc-max9768-objs := max9768.o
+@@ -144,6 +146,7 @@ snd-soc-pcm179x-spi-objs := pcm179x-spi.
+ snd-soc-pcm186x-objs := pcm186x.o
+ snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o
+ snd-soc-pcm186x-spi-objs := pcm186x-spi.o
++snd-soc-pcm1794a-objs := pcm1794a.o
+ snd-soc-pcm3008-objs := pcm3008.o
+ snd-soc-pcm3060-objs := pcm3060.o
+ snd-soc-pcm3060-i2c-objs := pcm3060-i2c.o
+@@ -216,6 +219,7 @@ snd-soc-tas6424-objs := tas6424.o
+ snd-soc-tda7419-objs := tda7419.o
+ snd-soc-tas2770-objs := tas2770.o
+ snd-soc-tfa9879-objs := tfa9879.o
++snd-soc-tas5713-objs := tas5713.o
+ snd-soc-tlv320aic23-objs := tlv320aic23.o
+ snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
+ snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o
+@@ -405,6 +409,7 @@ obj-$(CONFIG_SND_SOC_HDAC_HDA) += snd-so
+ obj-$(CONFIG_SND_SOC_ICS43432)	+= snd-soc-ics43432.o
+ obj-$(CONFIG_SND_SOC_INNO_RK3036)	+= snd-soc-inno-rk3036.o
+ obj-$(CONFIG_SND_SOC_ISABELLE)	+= snd-soc-isabelle.o
++obj-$(CONFIG_SND_SOC_I_SABRE_CODEC)	+= snd-soc-i-sabre-codec.o
+ obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o
+ obj-$(CONFIG_SND_SOC_JZ4725B_CODEC)	+= snd-soc-jz4725b-codec.o
+ obj-$(CONFIG_SND_SOC_JZ4770_CODEC)	+= snd-soc-jz4770-codec.o
+@@ -412,6 +417,7 @@ obj-$(CONFIG_SND_SOC_L3)	+= snd-soc-l3.o
+ obj-$(CONFIG_SND_SOC_LM4857)	+= snd-soc-lm4857.o
+ obj-$(CONFIG_SND_SOC_LM49453)   += snd-soc-lm49453.o
+ obj-$(CONFIG_SND_SOC_LOCHNAGAR_SC)	+= snd-soc-lochnagar-sc.o
++obj-$(CONFIG_SND_SOC_MA120X0P)   += snd-soc-ma120x0p.o
+ obj-$(CONFIG_SND_SOC_MADERA)	+= snd-soc-madera.o
+ obj-$(CONFIG_SND_SOC_MAX9759)	+= snd-soc-max9759.o
+ obj-$(CONFIG_SND_SOC_MAX9768)	+= snd-soc-max9768.o
+@@ -465,6 +471,7 @@ obj-$(CONFIG_SND_SOC_PCM512x)	+= snd-soc
+ obj-$(CONFIG_SND_SOC_PCM512x_I2C)	+= snd-soc-pcm512x-i2c.o
+ obj-$(CONFIG_SND_SOC_PCM512x_SPI)	+= snd-soc-pcm512x-spi.o
+ obj-$(CONFIG_SND_SOC_RK3328)	+= snd-soc-rk3328.o
++obj-$(CONFIG_SND_SOC_PCM1794A)	+= snd-soc-pcm1794a.o
+ obj-$(CONFIG_SND_SOC_RL6231)	+= snd-soc-rl6231.o
+ obj-$(CONFIG_SND_SOC_RL6347A)	+= snd-soc-rl6347a.o
+ obj-$(CONFIG_SND_SOC_RT1011)	+= snd-soc-rt1011.o
+@@ -526,6 +533,7 @@ obj-$(CONFIG_SND_SOC_TAS6424)	+= snd-soc
+ obj-$(CONFIG_SND_SOC_TDA7419)	+= snd-soc-tda7419.o
+ obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o
+ obj-$(CONFIG_SND_SOC_TFA9879)	+= snd-soc-tfa9879.o
++obj-$(CONFIG_SND_SOC_TAS5713)	+= snd-soc-tas5713.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23)	+= snd-soc-tlv320aic23.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C)	+= snd-soc-tlv320aic23-i2c.o
+ obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI)	+= snd-soc-tlv320aic23-spi.o
+--- a/sound/soc/codecs/cs42xx8-i2c.c
++++ b/sound/soc/codecs/cs42xx8-i2c.c
+@@ -45,11 +45,18 @@ static struct i2c_device_id cs42xx8_i2c_
+ };
+ MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);
+ 
++const struct of_device_id cs42xx8_i2c_of_match[] = {
++	{ .compatible = "cirrus,cs42448", .data = &cs42448_data, },
++	{ .compatible = "cirrus,cs42888", .data = &cs42888_data, },
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, cs42xx8_i2c_of_match);
++
+ static struct i2c_driver cs42xx8_i2c_driver = {
+ 	.driver = {
+ 		.name = "cs42xx8",
+ 		.pm = &cs42xx8_pm,
+-		.of_match_table = cs42xx8_of_match,
++		.of_match_table = cs42xx8_i2c_of_match,
+ 	},
+ 	.probe = cs42xx8_i2c_probe,
+ 	.remove = cs42xx8_i2c_remove,
+--- a/sound/soc/codecs/cs42xx8.c
++++ b/sound/soc/codecs/cs42xx8.c
+@@ -517,8 +517,10 @@ const struct of_device_id cs42xx8_of_mat
+ 	{ .compatible = "cirrus,cs42888", .data = &cs42888_data, },
+ 	{ /* sentinel */ }
+ };
++#if !IS_ENABLED(CONFIG_SND_SOC_CS42XX8_I2C)
+ MODULE_DEVICE_TABLE(of, cs42xx8_of_match);
+ EXPORT_SYMBOL_GPL(cs42xx8_of_match);
++#endif
+ 
+ int cs42xx8_probe(struct device *dev, struct regmap *regmap)
+ {
+--- /dev/null
++++ b/sound/soc/codecs/i-sabre-codec.c
+@@ -0,0 +1,392 @@
++/*
++ * Driver for I-Sabre Q2M
++ *
++ * Author: Satoru Kawase
++ * Modified by: Xiao Qingyong
++ * Modified by: JC BARBAUD (Mute)
++ * Update kernel v4.18+ by : Audiophonics
++ * 		Copyright 2018 Audiophonics
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/regmap.h>
++#include <linux/i2c.h>
++#include <sound/soc.h>
++#include <sound/pcm_params.h>
++#include <sound/tlv.h>
++
++#include "i-sabre-codec.h"
++
++
++/* I-Sabre Q2M Codec Private Data */
++struct i_sabre_codec_priv {
++	struct regmap *regmap;
++	unsigned int fmt;
++};
++
++
++/* I-Sabre Q2M Codec Default Register Value */
++static const struct reg_default i_sabre_codec_reg_defaults[] = {
++	{ ISABRECODEC_REG_10, 0x00 },
++	{ ISABRECODEC_REG_20, 0x00 },
++	{ ISABRECODEC_REG_21, 0x00 },
++	{ ISABRECODEC_REG_22, 0x00 },
++	{ ISABRECODEC_REG_24, 0x00 },
++};
++
++
++static bool i_sabre_codec_writeable(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case ISABRECODEC_REG_10:
++	case ISABRECODEC_REG_20:
++	case ISABRECODEC_REG_21:
++	case ISABRECODEC_REG_22:
++	case ISABRECODEC_REG_24:
++		return true;
++
++	default:
++		return false;
++	}
++}
++
++static bool i_sabre_codec_readable(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case ISABRECODEC_REG_01:
++	case ISABRECODEC_REG_02:
++	case ISABRECODEC_REG_10:
++	case ISABRECODEC_REG_20:
++	case ISABRECODEC_REG_21:
++	case ISABRECODEC_REG_22:
++	case ISABRECODEC_REG_24:
++		return true;
++
++	default:
++		return false;
++	}
++}
++
++static bool i_sabre_codec_volatile(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case ISABRECODEC_REG_01:
++	case ISABRECODEC_REG_02:
++		return true;
++
++	default:
++		return false;
++	}
++}
++
++
++/* Volume Scale */
++static const DECLARE_TLV_DB_SCALE(volume_tlv, -10000, 100, 0);
++
++
++/* Filter Type */
++static const char * const fir_filter_type_texts[] = {
++	"brick wall",
++	"corrected minimum phase fast",
++	"minimum phase slow",
++	"minimum phase fast",
++	"linear phase slow",
++	"linear phase fast",
++	"apodizing fast",
++};
++
++static SOC_ENUM_SINGLE_DECL(i_sabre_fir_filter_type_enum,
++				ISABRECODEC_REG_22, 0, fir_filter_type_texts);
++
++
++/* I2S / SPDIF Select */
++static const char * const iis_spdif_sel_texts[] = {
++	"I2S",
++	"SPDIF",
++};
++
++static SOC_ENUM_SINGLE_DECL(i_sabre_iis_spdif_sel_enum,
++				ISABRECODEC_REG_24, 0, iis_spdif_sel_texts);
++
++
++/* Control */
++static const struct snd_kcontrol_new i_sabre_codec_controls[] = {
++SOC_SINGLE_RANGE_TLV("Digital Playback Volume", ISABRECODEC_REG_20, 0, 0, 100, 1, volume_tlv),
++SOC_SINGLE("Digital Playback Switch", ISABRECODEC_REG_21, 0, 1, 1),
++SOC_ENUM("FIR Filter Type", i_sabre_fir_filter_type_enum),
++SOC_ENUM("I2S/SPDIF Select", i_sabre_iis_spdif_sel_enum),
++};
++
++
++static const u32 i_sabre_codec_dai_rates_slave[] = {
++	8000, 11025, 16000, 22050, 32000,
++	44100, 48000, 64000, 88200, 96000,
++	176400, 192000, 352800, 384000,
++	705600, 768000, 1411200, 1536000
++};
++
++static const struct snd_pcm_hw_constraint_list constraints_slave = {
++	.list  = i_sabre_codec_dai_rates_slave,
++	.count = ARRAY_SIZE(i_sabre_codec_dai_rates_slave),
++};
++
++static int i_sabre_codec_dai_startup_slave(
++		struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
++{
++	struct snd_soc_component *component = dai->component;
++	int ret;
++
++	ret = snd_pcm_hw_constraint_list(substream->runtime,
++			0, SNDRV_PCM_HW_PARAM_RATE, &constraints_slave);
++	if (ret != 0) {
++		dev_err(component->card->dev, "Failed to setup rates constraints: %d\n", ret);
++	}
++
++	return ret;
++}
++
++static int i_sabre_codec_dai_startup(
++		struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
++{
++	struct snd_soc_component      *component = dai->component;
++	struct i_sabre_codec_priv *i_sabre_codec
++					= snd_soc_component_get_drvdata(component);
++
++	switch (i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++	case SND_SOC_DAIFMT_CBS_CFS:
++		return i_sabre_codec_dai_startup_slave(substream, dai);
++
++	default:
++		return (-EINVAL);
++	}
++}
++
++static int i_sabre_codec_hw_params(
++	struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params,
++	struct snd_soc_dai *dai)
++{
++	struct snd_soc_component      *component = dai->component;
++	struct i_sabre_codec_priv *i_sabre_codec
++					= snd_soc_component_get_drvdata(component);
++	unsigned int daifmt;
++	int format_width;
++
++	dev_dbg(component->card->dev, "hw_params %u Hz, %u channels\n",
++			params_rate(params), params_channels(params));
++
++	/* Check I2S Format (Bit Size) */
++	format_width = snd_pcm_format_width(params_format(params));
++	if ((format_width != 32) && (format_width != 16)) {
++		dev_err(component->card->dev, "Bad frame size: %d\n",
++				snd_pcm_format_width(params_format(params)));
++		return (-EINVAL);
++	}
++
++	/* Check Slave Mode */
++	daifmt = i_sabre_codec->fmt & SND_SOC_DAIFMT_MASTER_MASK;
++	if (daifmt != SND_SOC_DAIFMT_CBS_CFS) {
++		return (-EINVAL);
++	}
++
++	/* Notify Sampling Frequency  */
++	switch (params_rate(params))
++	{
++	case 44100:
++	case 48000:
++	case 88200:
++	case 96000:
++	case 176400:
++	case 192000:
++		snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x00);
++		break;
++
++	case 352800:
++	case 384000:
++	case 705600:
++	case 768000:
++	case 1411200:
++	case 1536000:
++		snd_soc_component_update_bits(component, ISABRECODEC_REG_10, 0x01, 0x01);
++		break;
++	}
++
++	return 0;
++}
++
++static int i_sabre_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
++{
++	struct snd_soc_component      *component = dai->component;
++	struct i_sabre_codec_priv *i_sabre_codec
++					= snd_soc_component_get_drvdata(component);
++
++	/* interface format */
++	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
++	case SND_SOC_DAIFMT_I2S:
++		break;
++
++	case SND_SOC_DAIFMT_RIGHT_J:
++	case SND_SOC_DAIFMT_LEFT_J:
++	default:
++		return (-EINVAL);
++	}
++
++	/* clock inversion */
++	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
++		return (-EINVAL);
++	}
++
++	/* Set Audio Data Format */
++	i_sabre_codec->fmt = fmt;
++
++	return 0;
++}
++
++static int i_sabre_codec_dac_mute(struct snd_soc_dai *dai, int mute, int direction)
++{
++	struct snd_soc_component *component = dai->component;
++
++	if (mute) {
++		snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x01);
++	} else {
++		snd_soc_component_update_bits(component, ISABRECODEC_REG_21, 0x01, 0x00);
++	}
++
++	return 0;
++}
++
++
++static const struct snd_soc_dai_ops i_sabre_codec_dai_ops = {
++	.startup      = i_sabre_codec_dai_startup,
++	.hw_params    = i_sabre_codec_hw_params,
++	.set_fmt      = i_sabre_codec_set_fmt,
++	.mute_stream  = i_sabre_codec_dac_mute,
++};
++
++static struct snd_soc_dai_driver i_sabre_codec_dai = {
++	.name = "i-sabre-codec-dai",
++	.playback = {
++		.stream_name  = "Playback",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.rate_min = 8000,
++		.rate_max = 1536000,
++		.formats      = SNDRV_PCM_FMTBIT_S16_LE
++				| SNDRV_PCM_FMTBIT_S32_LE,
++	},
++	.ops = &i_sabre_codec_dai_ops,
++};
++
++static struct snd_soc_component_driver i_sabre_codec_codec_driver = {
++		.controls         = i_sabre_codec_controls,
++		.num_controls     = ARRAY_SIZE(i_sabre_codec_controls),
++};
++
++
++static const struct regmap_config i_sabre_codec_regmap = {
++	.reg_bits         = 8,
++	.val_bits         = 8,
++	.max_register     = ISABRECODEC_MAX_REG,
++
++	.reg_defaults     = i_sabre_codec_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(i_sabre_codec_reg_defaults),
++
++	.writeable_reg    = i_sabre_codec_writeable,
++	.readable_reg     = i_sabre_codec_readable,
++	.volatile_reg     = i_sabre_codec_volatile,
++
++	.cache_type       = REGCACHE_RBTREE,
++};
++
++
++static int i_sabre_codec_probe(struct device *dev, struct regmap *regmap)
++{
++	struct i_sabre_codec_priv *i_sabre_codec;
++	int ret;
++
++	i_sabre_codec = devm_kzalloc(dev, sizeof(*i_sabre_codec), GFP_KERNEL);
++	if (!i_sabre_codec) {
++		dev_err(dev, "devm_kzalloc");
++		return (-ENOMEM);
++	}
++
++	i_sabre_codec->regmap = regmap;
++
++	dev_set_drvdata(dev, i_sabre_codec);
++
++	ret = snd_soc_register_component(dev,
++			&i_sabre_codec_codec_driver, &i_sabre_codec_dai, 1);
++	if (ret != 0) {
++		dev_err(dev, "Failed to register CODEC: %d\n", ret);
++		return ret;
++	}
++
++	return 0;
++}
++
++static void i_sabre_codec_remove(struct device *dev)
++{
++	snd_soc_unregister_component(dev);
++}
++
++
++static int i_sabre_codec_i2c_probe(
++		struct i2c_client *i2c, const struct i2c_device_id *id)
++{
++	struct regmap *regmap;
++
++	regmap = devm_regmap_init_i2c(i2c, &i_sabre_codec_regmap);
++	if (IS_ERR(regmap)) {
++		return PTR_ERR(regmap);
++	}
++
++	return i_sabre_codec_probe(&i2c->dev, regmap);
++}
++
++static int i_sabre_codec_i2c_remove(struct i2c_client *i2c)
++{
++	i_sabre_codec_remove(&i2c->dev);
++
++	return 0;
++}
++
++
++static const struct i2c_device_id i_sabre_codec_i2c_id[] = {
++	{ "i-sabre-codec", },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, i_sabre_codec_i2c_id);
++
++static const struct of_device_id i_sabre_codec_of_match[] = {
++	{ .compatible = "audiophonics,i-sabre-codec", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, i_sabre_codec_of_match);
++
++static struct i2c_driver i_sabre_codec_i2c_driver = {
++	.driver = {
++		.name           = "i-sabre-codec-i2c",
++		.owner          = THIS_MODULE,
++		.of_match_table = of_match_ptr(i_sabre_codec_of_match),
++	},
++	.probe    = i_sabre_codec_i2c_probe,
++	.remove   = i_sabre_codec_i2c_remove,
++	.id_table = i_sabre_codec_i2c_id,
++};
++module_i2c_driver(i_sabre_codec_i2c_driver);
++
++
++MODULE_DESCRIPTION("ASoC I-Sabre Q2M codec driver");
++MODULE_AUTHOR("Audiophonics <http://www.audiophonics.fr>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/sound/soc/codecs/i-sabre-codec.h
+@@ -0,0 +1,42 @@
++/*
++ * Driver for I-Sabre Q2M
++ *
++ * Author: Satoru Kawase
++ * Modified by: Xiao Qingyong
++ *      Copyright 2018 Audiophonics
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#ifndef _SND_SOC_ISABRECODEC
++#define _SND_SOC_ISABRECODEC
++
++
++/* ISABRECODEC Register Address */
++#define ISABRECODEC_REG_01	0x01	/* Virtual Device ID  :  0x01 = es9038q2m */
++#define ISABRECODEC_REG_02	0x02	/* API revision       :  0x01 = Revision 01 */
++#define ISABRECODEC_REG_10	0x10	/* 0x01 = above 192kHz, 0x00 = otherwise */
++#define ISABRECODEC_REG_20	0x20	/* 0 - 100 (decimal value, 0 = min., 100 = max.) */
++#define ISABRECODEC_REG_21	0x21	/* 0x00 = Mute OFF, 0x01 = Mute ON */
++#define ISABRECODEC_REG_22	0x22	
++/*
++   0x00 = brick wall,
++   0x01 = corrected minimum phase fast,
++   0x02 = minimum phase slow,
++   0x03 = minimum phase fast,
++   0x04 = linear phase slow,
++   0x05 = linear phase fast,
++   0x06 = apodizing fast,
++*/
++//#define ISABRECODEC_REG_23	0x23	/* reserved */
++#define ISABRECODEC_REG_24	0x24	/* 0x00 = I2S, 0x01 = SPDIF */
++#define ISABRECODEC_MAX_REG	0x24	/* Maximum Register Number */
++
++#endif /* _SND_SOC_ISABRECODEC */
+--- /dev/null
++++ b/sound/soc/codecs/ma120x0p.c
+@@ -0,0 +1,1384 @@
++// SPDX-License-Identifier: GPL-2.0-or-later
++/*
++ * ASoC Driver for Infineon Merus(TM) ma120x0p multi-level class-D amplifier
++ *
++ * Authors:	Ariel Muszkat <ariel.muszkat@gmail.com>
++ * Jorgen Kragh Jakobsen <jorgen.kraghjakobsen@infineon.com>
++ *
++ * Copyright (C) 2019 Infineon Technologies AG
++ *
++ */
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/pm_runtime.h>
++#include <linux/i2c.h>
++#include <linux/of_device.h>
++#include <linux/spi/spi.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <linux/slab.h>
++#include <linux/gpio/consumer.h>
++#include <linux/gpio.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/soc-dapm.h>
++#include <sound/initval.h>
++#include <sound/tlv.h>
++#include <linux/interrupt.h>
++
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/fs.h>
++#include <linux/uaccess.h>
++
++#ifndef _MA120X0P_
++#define _MA120X0P_
++//------------------------------------------------------------------manualPM---
++// Select Manual PowerMode control
++#define ma_manualpm__a 0
++#define ma_manualpm__len 1
++#define ma_manualpm__mask 0x40
++#define ma_manualpm__shift 0x06
++#define ma_manualpm__reset 0x00
++//--------------------------------------------------------------------pm_man---
++// manual selected power mode
++#define ma_pm_man__a 0
++#define ma_pm_man__len 2
++#define ma_pm_man__mask 0x30
++#define ma_pm_man__shift 0x04
++#define ma_pm_man__reset 0x03
++//------------------------------------------ ----------------------mthr_1to2---
++// mod. index threshold value for pm1=>pm2 change.
++#define ma_mthr_1to2__a 1
++#define ma_mthr_1to2__len 8
++#define ma_mthr_1to2__mask 0xff
++#define ma_mthr_1to2__shift 0x00
++#define ma_mthr_1to2__reset 0x3c
++//-----------------------------------------------------------------mthr_2to1---
++// mod. index threshold value for pm2=>pm1 change.
++#define ma_mthr_2to1__a 2
++#define ma_mthr_2to1__len 8
++#define ma_mthr_2to1__mask 0xff
++#define ma_mthr_2to1__shift 0x00
++#define ma_mthr_2to1__reset 0x32
++//-----------------------------------------------------------------mthr_2to3---
++// mod. index threshold value for pm2=>pm3 change.
++#define ma_mthr_2to3__a 3
++#define ma_mthr_2to3__len 8
++#define ma_mthr_2to3__mask 0xff
++#define ma_mthr_2to3__shift 0x00
++#define ma_mthr_2to3__reset 0x5a
++//-----------------------------------------------------------------mthr_3to2---
++// mod. index threshold value for pm3=>pm2 change.
++#define ma_mthr_3to2__a 4
++#define ma_mthr_3to2__len 8
++#define ma_mthr_3to2__mask 0xff
++#define ma_mthr_3to2__shift 0x00
++#define ma_mthr_3to2__reset 0x50
++//-------------------------------------------------------------pwmclkdiv_nom---
++// pwm default clock divider value
++#define ma_pwmclkdiv_nom__a 8
++#define ma_pwmclkdiv_nom__len 8
++#define ma_pwmclkdiv_nom__mask 0xff
++#define ma_pwmclkdiv_nom__shift 0x00
++#define ma_pwmclkdiv_nom__reset 0x26
++//--------- ----------------------------------------------------ocp_latch_en---
++// high to use permanently latching level-2 ocp
++#define ma_ocp_latch_en__a 10
++#define ma_ocp_latch_en__len 1
++#define ma_ocp_latch_en__mask 0x02
++#define ma_ocp_latch_en__shift 0x01
++#define ma_ocp_latch_en__reset 0x00
++//---------------------------------------------------------------lf_clamp_en---
++// high (default) to enable lf int2+3 clamping on clip
++#define ma_lf_clamp_en__a 10
++#define ma_lf_clamp_en__len 1
++#define ma_lf_clamp_en__mask 0x80
++#define ma_lf_clamp_en__shift 0x07
++#define ma_lf_clamp_en__reset 0x00
++//-------------------------------------------------------pmcfg_btl_b.modtype---
++//
++#define ma_pmcfg_btl_b__modtype__a 18
++#define ma_pmcfg_btl_b__modtype__len 2
++#define ma_pmcfg_btl_b__modtype__mask 0x18
++#define ma_pmcfg_btl_b__modtype__shift 0x03
++#define ma_pmcfg_btl_b__modtype__reset 0x02
++//-------------------------------------------------------pmcfg_btl_b.freqdiv---
++#define ma_pmcfg_btl_b__freqdiv__a 18
++#define ma_pmcfg_btl_b__freqdiv__len 2
++#define ma_pmcfg_btl_b__freqdiv__mask 0x06
++#define ma_pmcfg_btl_b__freqdiv__shift 0x01
++#define ma_pmcfg_btl_b__freqdiv__reset 0x01
++//----------------------------------------------------pmcfg_btl_b.lf_gain_ol---
++//
++#define ma_pmcfg_btl_b__lf_gain_ol__a 18
++#define ma_pmcfg_btl_b__lf_gain_ol__len 1
++#define ma_pmcfg_btl_b__lf_gain_ol__mask 0x01
++#define ma_pmcfg_btl_b__lf_gain_ol__shift 0x00
++#define ma_pmcfg_btl_b__lf_gain_ol__reset 0x01
++//-------------------------------------------------------pmcfg_btl_c.freqdiv---
++//
++#define ma_pmcfg_btl_c__freqdiv__a 19
++#define ma_pmcfg_btl_c__freqdiv__len 2
++#define ma_pmcfg_btl_c__freqdiv__mask 0x06
++#define ma_pmcfg_btl_c__freqdiv__shift 0x01
++#define ma_pmcfg_btl_c__freqdiv__reset 0x01
++//-------------------------------------------------------pmcfg_btl_c.modtype---
++//
++#define ma_pmcfg_btl_c__modtype__a 19
++#define ma_pmcfg_btl_c__modtype__len 2
++#define ma_pmcfg_btl_c__modtype__mask 0x18
++#define ma_pmcfg_btl_c__modtype__shift 0x03
++#define ma_pmcfg_btl_c__modtype__reset 0x01
++//----------------------------------------------------pmcfg_btl_c.lf_gain_ol---
++//
++#define ma_pmcfg_btl_c__lf_gain_ol__a 19
++#define ma_pmcfg_btl_c__lf_gain_ol__len 1
++#define ma_pmcfg_btl_c__lf_gain_ol__mask 0x01
++#define ma_pmcfg_btl_c__lf_gain_ol__shift 0x00
++#define ma_pmcfg_btl_c__lf_gain_ol__reset 0x00
++//-------------------------------------------------------pmcfg_btl_d.modtype---
++//
++#define ma_pmcfg_btl_d__modtype__a 20
++#define ma_pmcfg_btl_d__modtype__len 2
++#define ma_pmcfg_btl_d__modtype__mask 0x18
++#define ma_pmcfg_btl_d__modtype__shift 0x03
++#define ma_pmcfg_btl_d__modtype__reset 0x02
++//-------------------------------------------------------pmcfg_btl_d.freqdiv---
++//
++#define ma_pmcfg_btl_d__freqdiv__a 20
++#define ma_pmcfg_btl_d__freqdiv__len 2
++#define ma_pmcfg_btl_d__freqdiv__mask 0x06
++#define ma_pmcfg_btl_d__freqdiv__shift 0x01
++#define ma_pmcfg_btl_d__freqdiv__reset 0x02
++//----------------------------------------------------pmcfg_btl_d.lf_gain_ol---
++//
++#define ma_pmcfg_btl_d__lf_gain_ol__a 20
++#define ma_pmcfg_btl_d__lf_gain_ol__len 1
++#define ma_pmcfg_btl_d__lf_gain_ol__mask 0x01
++#define ma_pmcfg_btl_d__lf_gain_ol__shift 0x00
++#define ma_pmcfg_btl_d__lf_gain_ol__reset 0x00
++//------------ -------------------------------------------pmcfg_se_a.modtype---
++//
++#define ma_pmcfg_se_a__modtype__a 21
++#define ma_pmcfg_se_a__modtype__len 2
++#define ma_pmcfg_se_a__modtype__mask 0x18
++#define ma_pmcfg_se_a__modtype__shift 0x03
++#define ma_pmcfg_se_a__modtype__reset 0x01
++//--------------------------------------------------------pmcfg_se_a.freqdiv---
++//
++#define ma_pmcfg_se_a__freqdiv__a 21
++#define ma_pmcfg_se_a__freqdiv__len 2
++#define ma_pmcfg_se_a__freqdiv__mask 0x06
++#define ma_pmcfg_se_a__freqdiv__shift 0x01
++#define ma_pmcfg_se_a__freqdiv__reset 0x00
++//-----------------------------------------------------pmcfg_se_a.lf_gain_ol---
++//
++#define ma_pmcfg_se_a__lf_gain_ol__a 21
++#define ma_pmcfg_se_a__lf_gain_ol__len 1
++#define ma_pmcfg_se_a__lf_gain_ol__mask 0x01
++#define ma_pmcfg_se_a__lf_gain_ol__shift 0x00
++#define ma_pmcfg_se_a__lf_gain_ol__reset 0x01
++//-----------------------------------------------------pmcfg_se_b.lf_gain_ol---
++//
++#define ma_pmcfg_se_b__lf_gain_ol__a 22
++#define ma_pmcfg_se_b__lf_gain_ol__len 1
++#define ma_pmcfg_se_b__lf_gain_ol__mask 0x01
++#define ma_pmcfg_se_b__lf_gain_ol__shift 0x00
++#define ma_pmcfg_se_b__lf_gain_ol__reset 0x00
++//--------------------------------------------------------pmcfg_se_b.freqdiv---
++//
++#define ma_pmcfg_se_b__freqdiv__a 22
++#define ma_pmcfg_se_b__freqdiv__len 2
++#define ma_pmcfg_se_b__freqdiv__mask 0x06
++#define ma_pmcfg_se_b__freqdiv__shift 0x01
++#define ma_pmcfg_se_b__freqdiv__reset 0x01
++//--------------------------------------------------------pmcfg_se_b.modtype---
++//
++#define ma_pmcfg_se_b__modtype__a 22
++#define ma_pmcfg_se_b__modtype__len 2
++#define ma_pmcfg_se_b__modtype__mask 0x18
++#define ma_pmcfg_se_b__modtype__shift 0x03
++#define ma_pmcfg_se_b__modtype__reset 0x01
++//----------------------------------------------------------balwaitcount_pm1---
++// pm1 balancing period.
++#define ma_balwaitcount_pm1__a 23
++#define ma_balwaitcount_pm1__len 8
++#define ma_balwaitcount_pm1__mask 0xff
++#define ma_balwaitcount_pm1__shift 0x00
++#define ma_balwaitcount_pm1__reset 0x14
++//----------------------------------------------------------balwaitcount_pm2---
++// pm2 balancing period.
++#define ma_balwaitcount_pm2__a 24
++#define ma_balwaitcount_pm2__len 8
++#define ma_balwaitcount_pm2__mask 0xff
++#define ma_balwaitcount_pm2__shift 0x00
++#define ma_balwaitcount_pm2__reset 0x14
++//----------------------------------------------------------balwaitcount_pm3---
++// pm3 balancing period.
++#define ma_balwaitcount_pm3__a 25
++#define ma_balwaitcount_pm3__len 8
++#define ma_balwaitcount_pm3__mask 0xff
++#define ma_balwaitcount_pm3__shift 0x00
++#define ma_balwaitcount_pm3__reset 0x1a
++//-------------------------------------------------------------usespread_pm1---
++// pm1 pwm spread-spectrum mode on/off.
++#define ma_usespread_pm1__a 26
++#define ma_usespread_pm1__len 1
++#define ma_usespread_pm1__mask 0x40
++#define ma_usespread_pm1__shift 0x06
++#define ma_usespread_pm1__reset 0x00
++//---------------------------------------------------------------dtsteps_pm1---
++// pm1 dead time setting [10ns steps].
++#define ma_dtsteps_pm1__a 26
++#define ma_dtsteps_pm1__len 3
++#define ma_dtsteps_pm1__mask 0x38
++#define ma_dtsteps_pm1__shift 0x03
++#define ma_dtsteps_pm1__reset 0x04
++//---------------------------------------------------------------baltype_pm1---
++// pm1 balancing sensor scheme.
++#define ma_baltype_pm1__a 26
++#define ma_baltype_pm1__len 3
++#define ma_baltype_pm1__mask 0x07
++#define ma_baltype_pm1__shift 0x00
++#define ma_baltype_pm1__reset 0x00
++//-------------------------------------------------------------usespread_pm2---
++// pm2 pwm spread-spectrum mode on/off.
++#define ma_usespread_pm2__a 27
++#define ma_usespread_pm2__len 1
++#define ma_usespread_pm2__mask 0x40
++#define ma_usespread_pm2__shift 0x06
++#define ma_usespread_pm2__reset 0x00
++//---------------------------------------------------------------dtsteps_pm2---
++// pm2 dead time setting [10ns steps].
++#define ma_dtsteps_pm2__a 27
++#define ma_dtsteps_pm2__len 3
++#define ma_dtsteps_pm2__mask 0x38
++#define ma_dtsteps_pm2__shift 0x03
++#define ma_dtsteps_pm2__reset 0x03
++//---------------------------------------------------------------baltype_pm2---
++// pm2 balancing sensor scheme.
++#define ma_baltype_pm2__a 27
++#define ma_baltype_pm2__len 3
++#define ma_baltype_pm2__mask 0x07
++#define ma_baltype_pm2__shift 0x00
++#define ma_baltype_pm2__reset 0x01
++//-------------------------------------------------------------usespread_pm3---
++// pm3 pwm spread-spectrum mode on/off.
++#define ma_usespread_pm3__a 28
++#define ma_usespread_pm3__len 1
++#define ma_usespread_pm3__mask 0x40
++#define ma_usespread_pm3__shift 0x06
++#define ma_usespread_pm3__reset 0x00
++//---------------------------------------------------------------dtsteps_pm3---
++// pm3 dead time setting [10ns steps].
++#define ma_dtsteps_pm3__a 28
++#define ma_dtsteps_pm3__len 3
++#define ma_dtsteps_pm3__mask 0x38
++#define ma_dtsteps_pm3__shift 0x03
++#define ma_dtsteps_pm3__reset 0x01
++//---------------------------------------------------------------baltype_pm3---
++// pm3 balancing sensor scheme.
++#define ma_baltype_pm3__a 28
++#define ma_baltype_pm3__len 3
++#define ma_baltype_pm3__mask 0x07
++#define ma_baltype_pm3__shift 0x00
++#define ma_baltype_pm3__reset 0x03
++//-----------------------------------------------------------------pmprofile---
++// pm profile select. valid presets: 0-1-2-3-4. 5=> custom profile.
++#define ma_pmprofile__a 29
++#define ma_pmprofile__len 3
++#define ma_pmprofile__mask 0x07
++#define ma_pmprofile__shift 0x00
++#define ma_pmprofile__reset 0x00
++//-------------------------------------------------------------------pm3_man---
++// custom profile pm3 contents. 0=>a,  1=>b,  2=>c,  3=>d
++#define ma_pm3_man__a 30
++#define ma_pm3_man__len 2
++#define ma_pm3_man__mask 0x30
++#define ma_pm3_man__shift 0x04
++#define ma_pm3_man__reset 0x02
++//-------------------------------------------------------------------pm2_man---
++// custom profile pm2 contents. 0=>a,  1=>b,  2=>c,  3=>d
++#define ma_pm2_man__a 30
++#define ma_pm2_man__len 2
++#define ma_pm2_man__mask 0x0c
++#define ma_pm2_man__shift 0x02
++#define ma_pm2_man__reset 0x03
++//-------------------------------------------------------------------pm1_man---
++// custom profile pm1 contents. 0=>a,  1=>b,  2=>c,  3=>d
++#define ma_pm1_man__a 30
++#define ma_pm1_man__len 2
++#define ma_pm1_man__mask 0x03
++#define ma_pm1_man__shift 0x00
++#define ma_pm1_man__reset 0x03
++//-----------------------------------------------------------ocp_latch_clear---
++// low-high clears current ocp latched condition.
++#define ma_ocp_latch_clear__a 32
++#define ma_ocp_latch_clear__len 1
++#define ma_ocp_latch_clear__mask 0x80
++#define ma_ocp_latch_clear__shift 0x07
++#define ma_ocp_latch_clear__reset 0x00
++//-------------------------------------------------------------audio_in_mode---
++// audio input mode; 0-1-2-3-4-5
++#define ma_audio_in_mode__a 37
++#define ma_audio_in_mode__len 3
++#define ma_audio_in_mode__mask 0xe0
++#define ma_audio_in_mode__shift 0x05
++#define ma_audio_in_mode__reset 0x00
++//-----------------------------------------------------------------eh_dcshdn---
++// high to enable dc protection
++#define ma_eh_dcshdn__a 38
++#define ma_eh_dcshdn__len 1
++#define ma_eh_dcshdn__mask 0x04
++#define ma_eh_dcshdn__shift 0x02
++#define ma_eh_dcshdn__reset 0x01
++//---------------------------------------------------------audio_in_mode_ext---
++// if set,  audio_in_mode is controlled from audio_in_mode register. if not set
++//audio_in_mode is set from fuse bank setting
++#define ma_audio_in_mode_ext__a 39
++#define ma_audio_in_mode_ext__len 1
++#define ma_audio_in_mode_ext__mask 0x20
++#define ma_audio_in_mode_ext__shift 0x05
++#define ma_audio_in_mode_ext__reset 0x00
++//------------------------------------------------------------------eh_clear---
++// flip to clear error registers
++#define ma_eh_clear__a 45
++#define ma_eh_clear__len 1
++#define ma_eh_clear__mask 0x04
++#define ma_eh_clear__shift 0x02
++#define ma_eh_clear__reset 0x00
++//----------------------------------------------------------thermal_compr_en---
++// enable otw-contr.  input compression?
++#define ma_thermal_compr_en__a 45
++#define ma_thermal_compr_en__len 1
++#define ma_thermal_compr_en__mask 0x20
++#define ma_thermal_compr_en__shift 0x05
++#define ma_thermal_compr_en__reset 0x01
++//---------------------------------------------------------------system_mute---
++// 1 = mute system,  0 = normal operation
++#define ma_system_mute__a 45
++#define ma_system_mute__len 1
++#define ma_system_mute__mask 0x40
++#define ma_system_mute__shift 0x06
++#define ma_system_mute__reset 0x00
++//------------------------------------------------------thermal_compr_max_db---
++// audio limiter max thermal reduction
++#define ma_thermal_compr_max_db__a 46
++#define ma_thermal_compr_max_db__len 3
++#define ma_thermal_compr_max_db__mask 0x07
++#define ma_thermal_compr_max_db__shift 0x00
++#define ma_thermal_compr_max_db__reset 0x04
++//---------------------------------------------------------audio_proc_enable---
++// enable audio proc,  bypass if not enabled
++#define ma_audio_proc_enable__a 53
++#define ma_audio_proc_enable__len 1
++#define ma_audio_proc_enable__mask 0x08
++#define ma_audio_proc_enable__shift 0x03
++#define ma_audio_proc_enable__reset 0x00
++//--------------------------------------------------------audio_proc_release---
++// 00:slow,  01:normal,  10:fast
++#define ma_audio_proc_release__a 53
++#define ma_audio_proc_release__len 2
++#define ma_audio_proc_release__mask 0x30
++#define ma_audio_proc_release__shift 0x04
++#define ma_audio_proc_release__reset 0x00
++//---------------------------------------------------------audio_proc_attack---
++// 00:slow,  01:normal,  10:fast
++#define ma_audio_proc_attack__a 53
++#define ma_audio_proc_attack__len 2
++#define ma_audio_proc_attack__mask 0xc0
++#define ma_audio_proc_attack__shift 0x06
++#define ma_audio_proc_attack__reset 0x00
++//----------------------------------------------------------------i2s_format---
++// i2s basic data format,  000 = std. i2s,  001 = left justified (default)
++#define ma_i2s_format__a 53
++#define ma_i2s_format__len 3
++#define ma_i2s_format__mask 0x07
++#define ma_i2s_format__shift 0x00
++#define ma_i2s_format__reset 0x01
++//--------------------------------------------------audio_proc_limiterenable---
++// 1: enable limiter,  0: disable limiter
++#define ma_audio_proc_limiterenable__a 54
++#define ma_audio_proc_limiterenable__len 1
++#define ma_audio_proc_limiterenable__mask 0x40
++#define ma_audio_proc_limiterenable__shift 0x06
++#define ma_audio_proc_limiterenable__reset 0x00
++//-----------------------------------------------------------audio_proc_mute---
++// 1: mute,  0: unmute
++#define ma_audio_proc_mute__a 54
++#define ma_audio_proc_mute__len 1
++#define ma_audio_proc_mute__mask 0x80
++#define ma_audio_proc_mute__shift 0x07
++#define ma_audio_proc_mute__reset 0x00
++//---------------------------------------------------------------i2s_sck_pol---
++// i2s sck polarity cfg. 0 = rising edge data change
++#define ma_i2s_sck_pol__a 54
++#define ma_i2s_sck_pol__len 1
++#define ma_i2s_sck_pol__mask 0x01
++#define ma_i2s_sck_pol__shift 0x00
++#define ma_i2s_sck_pol__reset 0x01
++//-------------------------------------------------------------i2s_framesize---
++// i2s word length. 00 = 32bit,  01 = 24bit
++#define ma_i2s_framesize__a 54
++#define ma_i2s_framesize__len 2
++#define ma_i2s_framesize__mask 0x18
++#define ma_i2s_framesize__shift 0x03
++#define ma_i2s_framesize__reset 0x00
++//----------------------------------------------------------------i2s_ws_pol---
++// i2s ws polarity. 0 = low first
++#define ma_i2s_ws_pol__a 54
++#define ma_i2s_ws_pol__len 1
++#define ma_i2s_ws_pol__mask 0x02
++#define ma_i2s_ws_pol__shift 0x01
++#define ma_i2s_ws_pol__reset 0x00
++//-----------------------------------------------------------------i2s_order---
++// i2s word bit order. 0 = msb first
++#define ma_i2s_order__a 54
++#define ma_i2s_order__len 1
++#define ma_i2s_order__mask 0x04
++#define ma_i2s_order__shift 0x02
++#define ma_i2s_order__reset 0x00
++//------------------------------------------------------------i2s_rightfirst---
++// i2s l/r word order; 0 = left first
++#define ma_i2s_rightfirst__a 54
++#define ma_i2s_rightfirst__len 1
++#define ma_i2s_rightfirst__mask 0x20
++#define ma_i2s_rightfirst__shift 0x05
++#define ma_i2s_rightfirst__reset 0x00
++//-------------------------------------------------------------vol_db_master---
++// master volume db
++#define ma_vol_db_master__a 64
++#define ma_vol_db_master__len 8
++#define ma_vol_db_master__mask 0xff
++#define ma_vol_db_master__shift 0x00
++#define ma_vol_db_master__reset 0x18
++//------------------------------------------------------------vol_lsb_master---
++// master volume lsb 1/4 steps
++#define ma_vol_lsb_master__a 65
++#define ma_vol_lsb_master__len 2
++#define ma_vol_lsb_master__mask 0x03
++#define ma_vol_lsb_master__shift 0x00
++#define ma_vol_lsb_master__reset 0x00
++//----------------------------------------------------------------vol_db_ch0---
++// volume channel 0
++#define ma_vol_db_ch0__a 66
++#define ma_vol_db_ch0__len 8
++#define ma_vol_db_ch0__mask 0xff
++#define ma_vol_db_ch0__shift 0x00
++#define ma_vol_db_ch0__reset 0x18
++//----------------------------------------------------------------vol_db_ch1---
++// volume channel 1
++#define ma_vol_db_ch1__a 67
++#define ma_vol_db_ch1__len 8
++#define ma_vol_db_ch1__mask 0xff
++#define ma_vol_db_ch1__shift 0x00
++#define ma_vol_db_ch1__reset 0x18
++//----------------------------------------------------------------vol_db_ch2---
++// volume channel 2
++#define ma_vol_db_ch2__a 68
++#define ma_vol_db_ch2__len 8
++#define ma_vol_db_ch2__mask 0xff
++#define ma_vol_db_ch2__shift 0x00
++#define ma_vol_db_ch2__reset 0x18
++//----------------------------------------------------------------vol_db_ch3---
++// volume channel 3
++#define ma_vol_db_ch3__a 69
++#define ma_vol_db_ch3__len 8
++#define ma_vol_db_ch3__mask 0xff
++#define ma_vol_db_ch3__shift 0x00
++#define ma_vol_db_ch3__reset 0x18
++//---------------------------------------------------------------vol_lsb_ch0---
++// volume channel 1 - 1/4 steps
++#define ma_vol_lsb_ch0__a 70
++#define ma_vol_lsb_ch0__len 2
++#define ma_vol_lsb_ch0__mask 0x03
++#define ma_vol_lsb_ch0__shift 0x00
++#define ma_vol_lsb_ch0__reset 0x00
++//---------------------------------------------------------------vol_lsb_ch1---
++// volume channel 3 - 1/4 steps
++#define ma_vol_lsb_ch1__a 70
++#define ma_vol_lsb_ch1__len 2
++#define ma_vol_lsb_ch1__mask 0x0c
++#define ma_vol_lsb_ch1__shift 0x02
++#define ma_vol_lsb_ch1__reset 0x00
++//---------------------------------------------------------------vol_lsb_ch2---
++// volume channel 2 - 1/4 steps
++#define ma_vol_lsb_ch2__a 70
++#define ma_vol_lsb_ch2__len 2
++#define ma_vol_lsb_ch2__mask 0x30
++#define ma_vol_lsb_ch2__shift 0x04
++#define ma_vol_lsb_ch2__reset 0x00
++//---------------------------------------------------------------vol_lsb_ch3---
++// volume channel 3 - 1/4 steps
++#define ma_vol_lsb_ch3__a 70
++#define ma_vol_lsb_ch3__len 2
++#define ma_vol_lsb_ch3__mask 0xc0
++#define ma_vol_lsb_ch3__shift 0x06
++#define ma_vol_lsb_ch3__reset 0x00
++//----------------------------------------------------------------thr_db_ch0---
++// thr_db channel 0
++#define ma_thr_db_ch0__a 71
++#define ma_thr_db_ch0__len 8
++#define ma_thr_db_ch0__mask 0xff
++#define ma_thr_db_ch0__shift 0x00
++#define ma_thr_db_ch0__reset 0x18
++//----------------------------------------------------------------thr_db_ch1---
++// thr db ch1
++#define ma_thr_db_ch1__a 72
++#define ma_thr_db_ch1__len 8
++#define ma_thr_db_ch1__mask 0xff
++#define ma_thr_db_ch1__shift 0x00
++#define ma_thr_db_ch1__reset 0x18
++//----------------------------------------------------------------thr_db_ch2---
++// thr db ch2
++#define ma_thr_db_ch2__a 73
++#define ma_thr_db_ch2__len 8
++#define ma_thr_db_ch2__mask 0xff
++#define ma_thr_db_ch2__shift 0x00
++#define ma_thr_db_ch2__reset 0x18
++//----------------------------------------------------------------thr_db_ch3---
++// threshold db ch3
++#define ma_thr_db_ch3__a 74
++#define ma_thr_db_ch3__len 8
++#define ma_thr_db_ch3__mask 0xff
++#define ma_thr_db_ch3__shift 0x00
++#define ma_thr_db_ch3__reset 0x18
++//---------------------------------------------------------------thr_lsb_ch0---
++// thr lsb ch0
++#define ma_thr_lsb_ch0__a 75
++#define ma_thr_lsb_ch0__len 2
++#define ma_thr_lsb_ch0__mask 0x03
++#define ma_thr_lsb_ch0__shift 0x00
++#define ma_thr_lsb_ch0__reset 0x00
++//---------------------------------------------------------------thr_lsb_ch1---
++// thr lsb ch1
++#define ma_thr_lsb_ch1__a 75
++#define ma_thr_lsb_ch1__len 2
++#define ma_thr_lsb_ch1__mask 0x0c
++#define ma_thr_lsb_ch1__shift 0x02
++#define ma_thr_lsb_ch1__reset 0x00
++//---------------------------------------------------------------thr_lsb_ch2---
++// thr lsb ch2 1/4 db step
++#define ma_thr_lsb_ch2__a 75
++#define ma_thr_lsb_ch2__len 2
++#define ma_thr_lsb_ch2__mask 0x30
++#define ma_thr_lsb_ch2__shift 0x04
++#define ma_thr_lsb_ch2__reset 0x00
++//---------------------------------------------------------------thr_lsb_ch3---
++// threshold lsb ch3
++#define ma_thr_lsb_ch3__a 75
++#define ma_thr_lsb_ch3__len 2
++#define ma_thr_lsb_ch3__mask 0xc0
++#define ma_thr_lsb_ch3__shift 0x06
++#define ma_thr_lsb_ch3__reset 0x00
++//-----------------------------------------------------------dcu_mon0.pm_mon---
++// power mode monitor channel 0
++#define ma_dcu_mon0__pm_mon__a 96
++#define ma_dcu_mon0__pm_mon__len 2
++#define ma_dcu_mon0__pm_mon__mask 0x03
++#define ma_dcu_mon0__pm_mon__shift 0x00
++#define ma_dcu_mon0__pm_mon__reset 0x00
++//-----------------------------------------------------dcu_mon0.freqmode_mon---
++// frequence mode monitor channel 0
++#define ma_dcu_mon0__freqmode_mon__a 96
++#define ma_dcu_mon0__freqmode_mon__len 3
++#define ma_dcu_mon0__freqmode_mon__mask 0x70
++#define ma_dcu_mon0__freqmode_mon__shift 0x04
++#define ma_dcu_mon0__freqmode_mon__reset 0x00
++//-------------------------------------------------------dcu_mon0.pps_passed---
++// dcu0 pps completion indicator
++#define ma_dcu_mon0__pps_passed__a 96
++#define ma_dcu_mon0__pps_passed__len 1
++#define ma_dcu_mon0__pps_passed__mask 0x80
++#define ma_dcu_mon0__pps_passed__shift 0x07
++#define ma_dcu_mon0__pps_passed__reset 0x00
++//----------------------------------------------------------dcu_mon0.ocp_mon---
++// ocp monitor channel 0
++#define ma_dcu_mon0__ocp_mon__a 97
++#define ma_dcu_mon0__ocp_mon__len 1
++#define ma_dcu_mon0__ocp_mon__mask 0x01
++#define ma_dcu_mon0__ocp_mon__shift 0x00
++#define ma_dcu_mon0__ocp_mon__reset 0x00
++//--------------------------------------------------------dcu_mon0.vcfly1_ok---
++// cfly1 protection monitor channel 0.
++#define ma_dcu_mon0__vcfly1_ok__a 97
++#define ma_dcu_mon0__vcfly1_ok__len 1
++#define ma_dcu_mon0__vcfly1_ok__mask 0x02
++#define ma_dcu_mon0__vcfly1_ok__shift 0x01
++#define ma_dcu_mon0__vcfly1_ok__reset 0x00
++//--------------------------------------------------------dcu_mon0.vcfly2_ok---
++// cfly2 protection monitor channel 0.
++#define ma_dcu_mon0__vcfly2_ok__a 97
++#define ma_dcu_mon0__vcfly2_ok__len 1
++#define ma_dcu_mon0__vcfly2_ok__mask 0x04
++#define ma_dcu_mon0__vcfly2_ok__shift 0x02
++#define ma_dcu_mon0__vcfly2_ok__reset 0x00
++//----------------------------------------------------------dcu_mon0.pvdd_ok---
++// dcu0 pvdd monitor
++#define ma_dcu_mon0__pvdd_ok__a 97
++#define ma_dcu_mon0__pvdd_ok__len 1
++#define ma_dcu_mon0__pvdd_ok__mask 0x08
++#define ma_dcu_mon0__pvdd_ok__shift 0x03
++#define ma_dcu_mon0__pvdd_ok__reset 0x00
++//-----------------------------------------------------------dcu_mon0.vdd_ok---
++// dcu0 vdd monitor
++#define ma_dcu_mon0__vdd_ok__a 97
++#define ma_dcu_mon0__vdd_ok__len 1
++#define ma_dcu_mon0__vdd_ok__mask 0x10
++#define ma_dcu_mon0__vdd_ok__shift 0x04
++#define ma_dcu_mon0__vdd_ok__reset 0x00
++//-------------------------------------------------------------dcu_mon0.mute---
++// dcu0 mute monitor
++#define ma_dcu_mon0__mute__a 97
++#define ma_dcu_mon0__mute__len 1
++#define ma_dcu_mon0__mute__mask 0x20
++#define ma_dcu_mon0__mute__shift 0x05
++#define ma_dcu_mon0__mute__reset 0x00
++//------------------------------------------------------------dcu_mon0.m_mon---
++// m sense monitor channel 0
++#define ma_dcu_mon0__m_mon__a 98
++#define ma_dcu_mon0__m_mon__len 8
++#define ma_dcu_mon0__m_mon__mask 0xff
++#define ma_dcu_mon0__m_mon__shift 0x00
++#define ma_dcu_mon0__m_mon__reset 0x00
++//-----------------------------------------------------------dcu_mon1.pm_mon---
++// power mode monitor channel 1
++#define ma_dcu_mon1__pm_mon__a 100
++#define ma_dcu_mon1__pm_mon__len 2
++#define ma_dcu_mon1__pm_mon__mask 0x03
++#define ma_dcu_mon1__pm_mon__shift 0x00
++#define ma_dcu_mon1__pm_mon__reset 0x00
++//-----------------------------------------------------dcu_mon1.freqmode_mon---
++// frequence mode monitor channel 1
++#define ma_dcu_mon1__freqmode_mon__a 100
++#define ma_dcu_mon1__freqmode_mon__len 3
++#define ma_dcu_mon1__freqmode_mon__mask 0x70
++#define ma_dcu_mon1__freqmode_mon__shift 0x04
++#define ma_dcu_mon1__freqmode_mon__reset 0x00
++//-------------------------------------------------------dcu_mon1.pps_passed---
++// dcu1 pps completion indicator
++#define ma_dcu_mon1__pps_passed__a 100
++#define ma_dcu_mon1__pps_passed__len 1
++#define ma_dcu_mon1__pps_passed__mask 0x80
++#define ma_dcu_mon1__pps_passed__shift 0x07
++#define ma_dcu_mon1__pps_passed__reset 0x00
++//----------------------------------------------------------dcu_mon1.ocp_mon---
++// ocp monitor channel 1
++#define ma_dcu_mon1__ocp_mon__a 101
++#define ma_dcu_mon1__ocp_mon__len 1
++#define ma_dcu_mon1__ocp_mon__mask 0x01
++#define ma_dcu_mon1__ocp_mon__shift 0x00
++#define ma_dcu_mon1__ocp_mon__reset 0x00
++//--------------------------------------------------------dcu_mon1.vcfly1_ok---
++// cfly1 protcetion monitor channel 1
++#define ma_dcu_mon1__vcfly1_ok__a 101
++#define ma_dcu_mon1__vcfly1_ok__len 1
++#define ma_dcu_mon1__vcfly1_ok__mask 0x02
++#define ma_dcu_mon1__vcfly1_ok__shift 0x01
++#define ma_dcu_mon1__vcfly1_ok__reset 0x00
++//--------------------------------------------------------dcu_mon1.vcfly2_ok---
++// cfly2 protection monitor channel 1
++#define ma_dcu_mon1__vcfly2_ok__a 101
++#define ma_dcu_mon1__vcfly2_ok__len 1
++#define ma_dcu_mon1__vcfly2_ok__mask 0x04
++#define ma_dcu_mon1__vcfly2_ok__shift 0x02
++#define ma_dcu_mon1__vcfly2_ok__reset 0x00
++//----------------------------------------------------------dcu_mon1.pvdd_ok---
++// dcu1 pvdd monitor
++#define ma_dcu_mon1__pvdd_ok__a 101
++#define ma_dcu_mon1__pvdd_ok__len 1
++#define ma_dcu_mon1__pvdd_ok__mask 0x08
++#define ma_dcu_mon1__pvdd_ok__shift 0x03
++#define ma_dcu_mon1__pvdd_ok__reset 0x00
++//-----------------------------------------------------------dcu_mon1.vdd_ok---
++// dcu1 vdd monitor
++#define ma_dcu_mon1__vdd_ok__a 101
++#define ma_dcu_mon1__vdd_ok__len 1
++#define ma_dcu_mon1__vdd_ok__mask 0x10
++#define ma_dcu_mon1__vdd_ok__shift 0x04
++#define ma_dcu_mon1__vdd_ok__reset 0x00
++//-------------------------------------------------------------dcu_mon1.mute---
++// dcu1 mute monitor
++#define ma_dcu_mon1__mute__a 101
++#define ma_dcu_mon1__mute__len 1
++#define ma_dcu_mon1__mute__mask 0x20
++#define ma_dcu_mon1__mute__shift 0x05
++#define ma_dcu_mon1__mute__reset 0x00
++//------------------------------------------------------------dcu_mon1.m_mon---
++// m sense monitor channel 1
++#define ma_dcu_mon1__m_mon__a 102
++#define ma_dcu_mon1__m_mon__len 8
++#define ma_dcu_mon1__m_mon__mask 0xff
++#define ma_dcu_mon1__m_mon__shift 0x00
++#define ma_dcu_mon1__m_mon__reset 0x00
++//--------------------------------------------------------dcu_mon0.sw_enable---
++// dcu0 switch enable monitor
++#define ma_dcu_mon0__sw_enable__a 104
++#define ma_dcu_mon0__sw_enable__len 1
++#define ma_dcu_mon0__sw_enable__mask 0x40
++#define ma_dcu_mon0__sw_enable__shift 0x06
++#define ma_dcu_mon0__sw_enable__reset 0x00
++//--------------------------------------------------------dcu_mon1.sw_enable---
++// dcu1 switch enable monitor
++#define ma_dcu_mon1__sw_enable__a 104
++#define ma_dcu_mon1__sw_enable__len 1
++#define ma_dcu_mon1__sw_enable__mask 0x80
++#define ma_dcu_mon1__sw_enable__shift 0x07
++#define ma_dcu_mon1__sw_enable__reset 0x00
++//------------------------------------------------------------hvboot0_ok_mon---
++// hvboot0_ok for test/debug
++#define ma_hvboot0_ok_mon__a 105
++#define ma_hvboot0_ok_mon__len 1
++#define ma_hvboot0_ok_mon__mask 0x40
++#define ma_hvboot0_ok_mon__shift 0x06
++#define ma_hvboot0_ok_mon__reset 0x00
++//------------------------------------------------------------hvboot1_ok_mon---
++// hvboot1_ok for test/debug
++#define ma_hvboot1_ok_mon__a 105
++#define ma_hvboot1_ok_mon__len 1
++#define ma_hvboot1_ok_mon__mask 0x80
++#define ma_hvboot1_ok_mon__shift 0x07
++#define ma_hvboot1_ok_mon__reset 0x00
++//-----------------------------------------------------------------error_acc---
++// accumulated errors,  at and after triggering
++#define ma_error_acc__a 109
++#define ma_error_acc__len 8
++#define ma_error_acc__mask 0xff
++#define ma_error_acc__shift 0x00
++#define ma_error_acc__reset 0x00
++//-------------------------------------------------------------i2s_data_rate---
++// detected i2s data rate: 00/01/10 = x1/x2/x4
++#define ma_i2s_data_rate__a 116
++#define ma_i2s_data_rate__len 2
++#define ma_i2s_data_rate__mask 0x03
++#define ma_i2s_data_rate__shift 0x00
++#define ma_i2s_data_rate__reset 0x00
++//---------------------------------------------------------audio_in_mode_mon---
++// audio input mode monitor
++#define ma_audio_in_mode_mon__a 116
++#define ma_audio_in_mode_mon__len 3
++#define ma_audio_in_mode_mon__mask 0x1c
++#define ma_audio_in_mode_mon__shift 0x02
++#define ma_audio_in_mode_mon__reset 0x00
++//------------------------------------------------------------------msel_mon---
++// msel[2:0] monitor register
++#define ma_msel_mon__a 117
++#define ma_msel_mon__len 3
++#define ma_msel_mon__mask 0x07
++#define ma_msel_mon__shift 0x00
++#define ma_msel_mon__reset 0x00
++//---------------------------------------------------------------------error---
++// current error flag monitor reg - for app. ctrl.
++#define ma_error__a 124
++#define ma_error__len 8
++#define ma_error__mask 0xff
++#define ma_error__shift 0x00
++#define ma_error__reset 0x00
++//----------------------------------------------------audio_proc_limiter_mon---
++// b7-b4: channel 3-0 limiter active
++#define ma_audio_proc_limiter_mon__a 126
++#define ma_audio_proc_limiter_mon__len 4
++#define ma_audio_proc_limiter_mon__mask 0xf0
++#define ma_audio_proc_limiter_mon__shift 0x04
++#define ma_audio_proc_limiter_mon__reset 0x00
++//-------------------------------------------------------audio_proc_clip_mon---
++// b3-b0: channel 3-0 clipping monitor
++#define ma_audio_proc_clip_mon__a 126
++#define ma_audio_proc_clip_mon__len 4
++#define ma_audio_proc_clip_mon__mask 0x0f
++#define ma_audio_proc_clip_mon__shift 0x00
++#define ma_audio_proc_clip_mon__reset 0x00
++#endif
++
++#define SOC_ENUM_ERR(xname, xenum)\
++{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
++	.access = SNDRV_CTL_ELEM_ACCESS_READ,\
++	.info = snd_soc_info_enum_double,\
++	.get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double,\
++	.private_value = (unsigned long)&(xenum) }
++
++static struct i2c_client *i2c;
++
++struct ma120x0p_priv {
++	struct regmap *regmap;
++	int mclk_div;
++	struct snd_soc_component *component;
++	struct gpio_desc *enable_gpio;
++	struct gpio_desc *mute_gpio;
++	struct gpio_desc *booster_gpio;
++	struct gpio_desc *error_gpio;
++};
++
++static struct ma120x0p_priv *priv_data;
++
++//Used to share the IRQ number within this file
++static unsigned int irqNumber;
++
++// Function prototype for the custom IRQ handler function
++static irqreturn_t ma120x0p_irq_handler(int irq, void *data);
++
++//Alsa Controls
++static const char * const limenable_text[] = {"Bypassed", "Enabled"};
++static const char * const limatack_text[] = {"Slow", "Normal", "Fast"};
++static const char * const limrelease_text[] = {"Slow", "Normal", "Fast"};
++
++static const char * const err_flycap_text[] = {"Ok", "Error"};
++static const char * const err_overcurr_text[] = {"Ok", "Error"};
++static const char * const err_pllerr_text[] = {"Ok", "Error"};
++static const char * const err_pvddunder_text[] = {"Ok", "Error"};
++static const char * const err_overtempw_text[] = {"Ok", "Error"};
++static const char * const err_overtempe_text[] = {"Ok", "Error"};
++static const char * const err_pinlowimp_text[] = {"Ok", "Error"};
++static const char * const err_dcprot_text[] = {"Ok", "Error"};
++
++static const char * const pwr_mode_prof_text[] = {"PMF0", "PMF1", "PMF2",
++"PMF3", "PMF4"};
++
++static const struct soc_enum lim_enable_ctrl =
++	SOC_ENUM_SINGLE(ma_audio_proc_limiterenable__a,
++		ma_audio_proc_limiterenable__shift,
++		ma_audio_proc_limiterenable__len + 1,
++		limenable_text);
++static const struct soc_enum limatack_ctrl =
++	SOC_ENUM_SINGLE(ma_audio_proc_attack__a,
++		ma_audio_proc_attack__shift,
++		ma_audio_proc_attack__len + 1,
++		limatack_text);
++static const struct soc_enum limrelease_ctrl =
++	SOC_ENUM_SINGLE(ma_audio_proc_release__a,
++		ma_audio_proc_release__shift,
++		ma_audio_proc_release__len + 1,
++		limrelease_text);
++static const struct soc_enum err_flycap_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 0, 3, err_flycap_text);
++static const struct soc_enum err_overcurr_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 1, 3, err_overcurr_text);
++static const struct soc_enum err_pllerr_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 2, 3, err_pllerr_text);
++static const struct soc_enum err_pvddunder_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 3, 3, err_pvddunder_text);
++static const struct soc_enum err_overtempw_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 4, 3, err_overtempw_text);
++static const struct soc_enum err_overtempe_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 5, 3, err_overtempe_text);
++static const struct soc_enum err_pinlowimp_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 6, 3, err_pinlowimp_text);
++static const struct soc_enum err_dcprot_ctrl =
++	SOC_ENUM_SINGLE(ma_error__a, 7, 3, err_dcprot_text);
++static const struct soc_enum pwr_mode_prof_ctrl =
++	SOC_ENUM_SINGLE(ma_pmprofile__a, ma_pmprofile__shift, 5,
++		pwr_mode_prof_text);
++
++static const char * const pwr_mode_texts[] = {
++		"Dynamic power mode",
++		"Power mode 1",
++		"Power mode 2",
++		"Power mode 3",
++	};
++
++static const int pwr_mode_values[] = {
++		0x10,
++		0x50,
++		0x60,
++		0x70,
++	};
++
++static const SOC_VALUE_ENUM_SINGLE_DECL(pwr_mode_ctrl,
++	ma_pm_man__a, 0, 0x70,
++	pwr_mode_texts,
++	pwr_mode_values);
++
++static const DECLARE_TLV_DB_SCALE(ma120x0p_vol_tlv, -5000, 100,  0);
++static const DECLARE_TLV_DB_SCALE(ma120x0p_lim_tlv, -5000, 100,  0);
++static const DECLARE_TLV_DB_SCALE(ma120x0p_lr_tlv, -5000, 100,  0);
++
++static const struct snd_kcontrol_new ma120x0p_snd_controls[] = {
++	//Master Volume
++	SOC_SINGLE_RANGE_TLV("A.Mstr Vol Volume",
++		ma_vol_db_master__a, 0, 0x18, 0x4a, 1, ma120x0p_vol_tlv),
++
++	//L-R Volume ch0
++	SOC_SINGLE_RANGE_TLV("B.L Vol Volume",
++		ma_vol_db_ch0__a, 0, 0x18, 0x4a, 1, ma120x0p_lr_tlv),
++	SOC_SINGLE_RANGE_TLV("C.R Vol Volume",
++		ma_vol_db_ch1__a, 0, 0x18, 0x4a, 1, ma120x0p_lr_tlv),
++
++	//L-R Limiter Threshold ch0-ch1
++	SOC_DOUBLE_R_RANGE_TLV("D.Lim thresh Volume",
++		ma_thr_db_ch0__a, ma_thr_db_ch1__a, 0, 0x0e, 0x4a, 1,
++		ma120x0p_lim_tlv),
++
++	//Enum Switches/Selectors
++	//SOC_ENUM("E.AudioProc Mute", audioproc_mute_ctrl),
++	SOC_ENUM("F.Limiter Enable", lim_enable_ctrl),
++	SOC_ENUM("G.Limiter Attck", limatack_ctrl),
++	SOC_ENUM("H.Limiter Rls", limrelease_ctrl),
++
++	//Enum Error Monitor (read-only)
++	SOC_ENUM_ERR("I.Err flycap", err_flycap_ctrl),
++	SOC_ENUM_ERR("J.Err overcurr", err_overcurr_ctrl),
++	SOC_ENUM_ERR("K.Err pllerr", err_pllerr_ctrl),
++	SOC_ENUM_ERR("L.Err pvddunder", err_pvddunder_ctrl),
++	SOC_ENUM_ERR("M.Err overtempw", err_overtempw_ctrl),
++	SOC_ENUM_ERR("N.Err overtempe", err_overtempe_ctrl),
++	SOC_ENUM_ERR("O.Err pinlowimp", err_pinlowimp_ctrl),
++	SOC_ENUM_ERR("P.Err dcprot", err_dcprot_ctrl),
++
++	//Power modes profiles
++	SOC_ENUM("Q.PM Prof", pwr_mode_prof_ctrl),
++
++	// Power mode selection (Dynamic,1,2,3)
++	SOC_ENUM("R.Power Mode", pwr_mode_ctrl),
++};
++
++//Machine Driver
++static int ma120x0p_hw_params(struct snd_pcm_substream *substream,
++	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
++{
++	u16 blen = 0x00;
++
++	struct snd_soc_component *component = dai->component;
++
++	priv_data->component = component;
++
++	switch (params_format(params)) {
++	case SNDRV_PCM_FORMAT_S16_LE:
++		blen = 0x10;
++		break;
++	case SNDRV_PCM_FORMAT_S24_LE:
++		blen = 0x00;
++		break;
++	case SNDRV_PCM_FORMAT_S32_LE:
++		blen = 0x00;
++		break;
++	default:
++		dev_err(dai->dev, "Unsupported word length: %u\n",
++		params_format(params));
++		return -EINVAL;
++	}
++
++	// set word length
++	snd_soc_component_update_bits(component, ma_i2s_framesize__a,
++		ma_i2s_framesize__mask, blen);
++
++	return 0;
++}
++
++static int ma120x0p_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
++{
++	int val = 0;
++
++	struct ma120x0p_priv *ma120x0p;
++
++	struct snd_soc_component *component = dai->component;
++
++	ma120x0p = snd_soc_component_get_drvdata(component);
++
++	if (mute)
++		val = 0;
++	else
++		val = 1;
++
++	gpiod_set_value_cansleep(priv_data->mute_gpio, val);
++
++	return 0;
++}
++
++static const struct snd_soc_dai_ops ma120x0p_dai_ops = {
++	.hw_params		=	ma120x0p_hw_params,
++	.mute_stream	=	ma120x0p_mute_stream,
++};
++
++static struct snd_soc_dai_driver ma120x0p_dai = {
++	.name		= "ma120x0p-amp",
++	.playback	=	{
++		.stream_name	= "Playback",
++		.channels_min	= 2,
++		.channels_max	= 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.rate_min = 44100,
++		.rate_max = 96000,
++		.formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE
++	},
++	.ops        = &ma120x0p_dai_ops,
++};
++
++//Codec Driver
++static int ma120x0p_clear_err(struct snd_soc_component *component)
++{
++	int ret = 0;
++
++	struct ma120x0p_priv *ma120x0p;
++
++	ma120x0p = snd_soc_component_get_drvdata(component);
++
++	ret = snd_soc_component_update_bits(component,
++		ma_eh_clear__a, ma_eh_clear__mask, 0x00);
++	if (ret < 0)
++		return ret;
++
++	ret = snd_soc_component_update_bits(component,
++		ma_eh_clear__a, ma_eh_clear__mask, 0x04);
++	if (ret < 0)
++		return ret;
++
++	ret = snd_soc_component_update_bits(component,
++		ma_eh_clear__a, ma_eh_clear__mask, 0x00);
++	if (ret < 0)
++		return ret;
++
++	return 0;
++}
++
++static void ma120x0p_remove(struct snd_soc_component *component)
++{
++	struct ma120x0p_priv *ma120x0p;
++
++	ma120x0p = snd_soc_component_get_drvdata(component);
++}
++
++static int ma120x0p_probe(struct snd_soc_component *component)
++{
++	struct ma120x0p_priv *ma120x0p;
++
++	int ret = 0;
++
++	i2c = container_of(component->dev, struct i2c_client, dev);
++
++	ma120x0p = snd_soc_component_get_drvdata(component);
++
++	//Reset error
++	ma120x0p_clear_err(component);
++	if (ret < 0)
++		return ret;
++
++	// set serial audio format I2S and enable audio processor
++	ret = snd_soc_component_write(component, ma_i2s_format__a, 0x08);
++	if (ret < 0)
++		return ret;
++
++	// Enable audio limiter
++	ret = snd_soc_component_update_bits(component,
++		ma_audio_proc_limiterenable__a,
++		ma_audio_proc_limiterenable__mask, 0x40);
++	if (ret < 0)
++		return ret;
++
++	// Set lim attack to fast
++	ret = snd_soc_component_update_bits(component,
++		ma_audio_proc_attack__a, ma_audio_proc_attack__mask, 0x80);
++	if (ret < 0)
++		return ret;
++
++	// Set lim attack to low
++	ret = snd_soc_component_update_bits(component,
++		ma_audio_proc_release__a, ma_audio_proc_release__mask, 0x00);
++	if (ret < 0)
++		return ret;
++
++	// set volume to 0dB
++	ret = snd_soc_component_write(component, ma_vol_db_master__a, 0x18);
++	if (ret < 0)
++		return ret;
++
++	// set ch0 lim thresh to -15dB
++	ret = snd_soc_component_write(component, ma_thr_db_ch0__a, 0x27);
++	if (ret < 0)
++		return ret;
++
++	// set ch1 lim thresh to -15dB
++	ret = snd_soc_component_write(component, ma_thr_db_ch1__a, 0x27);
++	if (ret < 0)
++		return ret;
++
++	//Check for errors
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x00, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x01, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x02, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x08, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x10, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x20, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x40, 0);
++	if (ret < 0)
++		return ret;
++	ret = snd_soc_component_test_bits(component, ma_error_acc__a, 0x80, 0);
++	if (ret < 0)
++		return ret;
++
++	return 0;
++}
++
++static int ma120x0p_set_bias_level(struct snd_soc_component *component,
++	enum snd_soc_bias_level level)
++{
++	int ret = 0;
++
++	struct ma120x0p_priv *ma120x0p;
++
++	ma120x0p = snd_soc_component_get_drvdata(component);
++
++	switch (level) {
++	case SND_SOC_BIAS_ON:
++		break;
++
++	case SND_SOC_BIAS_PREPARE:
++		break;
++
++	case SND_SOC_BIAS_STANDBY:
++		ret = gpiod_get_value_cansleep(priv_data->enable_gpio);
++		if (ret != 0) {
++			dev_err(component->dev, "Device ma120x0p disabled in STANDBY BIAS: %d\n",
++			ret);
++			return ret;
++		}
++		break;
++
++	case SND_SOC_BIAS_OFF:
++		break;
++	}
++
++	return 0;
++}
++
++static const struct snd_soc_dapm_widget ma120x0p_dapm_widgets[] = {
++	SND_SOC_DAPM_OUTPUT("OUT_A"),
++	SND_SOC_DAPM_OUTPUT("OUT_B"),
++};
++
++static const struct snd_soc_dapm_route ma120x0p_dapm_routes[] = {
++	{ "OUT_B",  NULL, "Playback" },
++	{ "OUT_A",  NULL, "Playback" },
++};
++
++static const struct snd_soc_component_driver ma120x0p_component_driver = {
++	.probe = ma120x0p_probe,
++	.remove = ma120x0p_remove,
++	.set_bias_level = ma120x0p_set_bias_level,
++	.dapm_widgets		= ma120x0p_dapm_widgets,
++	.num_dapm_widgets	= ARRAY_SIZE(ma120x0p_dapm_widgets),
++	.dapm_routes		= ma120x0p_dapm_routes,
++	.num_dapm_routes	= ARRAY_SIZE(ma120x0p_dapm_routes),
++	.controls = ma120x0p_snd_controls,
++	.num_controls = ARRAY_SIZE(ma120x0p_snd_controls),
++	.use_pmdown_time	= 1,
++	.endianness		= 1,
++	.non_legacy_dai_naming	= 1,
++};
++
++//I2C Driver
++static const struct reg_default ma120x0p_reg_defaults[] = {
++	{	0x01,	0x3c	},
++};
++
++static bool ma120x0p_reg_volatile(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case ma_error__a:
++			return true;
++	default:
++			return false;
++	}
++}
++
++static const struct of_device_id ma120x0p_of_match[] = {
++	{ .compatible = "ma,ma120x0p", },
++	{ }
++};
++
++MODULE_DEVICE_TABLE(of, ma120x0p_of_match);
++
++static struct regmap_config ma120x0p_regmap_config = {
++	.reg_bits = 8,
++	.val_bits = 8,
++
++	.max_register = 255,
++	.volatile_reg = ma120x0p_reg_volatile,
++
++	.cache_type = REGCACHE_RBTREE,
++	.reg_defaults = ma120x0p_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(ma120x0p_reg_defaults),
++};
++
++static int ma120x0p_i2c_probe(struct i2c_client *i2c,
++	const struct i2c_device_id *id)
++{
++	int ret;
++
++	priv_data = devm_kzalloc(&i2c->dev, sizeof(*priv_data), GFP_KERNEL);
++	if (!priv_data)
++		return -ENOMEM;
++	i2c_set_clientdata(i2c, priv_data);
++
++	priv_data->regmap = devm_regmap_init_i2c(i2c, &ma120x0p_regmap_config);
++	if (IS_ERR(priv_data->regmap)) {
++		ret = PTR_ERR(priv_data->regmap);
++		return ret;
++	}
++
++	//Startup sequence
++
++	//Make sure the device is muted
++	priv_data->mute_gpio = devm_gpiod_get_optional(&i2c->dev, "mute_gp",
++		GPIOD_OUT_LOW);
++	if (IS_ERR(priv_data->mute_gpio)) {
++		ret = PTR_ERR(priv_data->mute_gpio);
++		dev_err(&i2c->dev, "Failed to get mute gpio line: %d\n", ret);
++		return ret;
++	}
++	msleep(50);
++
++// MA120xx0P devices are usually powered by an integrated boost converter.
++// An option GPIO control line is provided to enable the booster properly and
++// in sync with the enable and mute GPIO lines.
++	priv_data->booster_gpio = devm_gpiod_get_optional(&i2c->dev,
++		"booster_gp", GPIOD_OUT_LOW);
++	if (IS_ERR(priv_data->booster_gpio)) {
++		ret = PTR_ERR(priv_data->booster_gpio);
++		dev_err(&i2c->dev,
++		"Failed to get booster enable gpio line: %d\n", ret);
++		return ret;
++	}
++	msleep(50);
++
++	//Enable booster and wait 200ms until stable PVDD
++	gpiod_set_value_cansleep(priv_data->booster_gpio, 1);
++	msleep(200);
++
++	//Enable ma120x0pp
++	priv_data->enable_gpio = devm_gpiod_get_optional(&i2c->dev,
++		"enable_gp", GPIOD_OUT_LOW);
++	if (IS_ERR(priv_data->enable_gpio)) {
++		ret = PTR_ERR(priv_data->enable_gpio);
++		dev_err(&i2c->dev,
++		"Failed to get ma120x0p enable gpio line: %d\n", ret);
++		return ret;
++	}
++	msleep(50);
++
++	//Optional use of ma120x0pp error line as an interrupt trigger to
++	//platform GPIO.
++	//Get error input gpio ma120x0p
++	priv_data->error_gpio = devm_gpiod_get_optional(&i2c->dev,
++		 "error_gp", GPIOD_IN);
++	if (IS_ERR(priv_data->error_gpio)) {
++		ret = PTR_ERR(priv_data->error_gpio);
++		dev_err(&i2c->dev,
++			"Failed to get ma120x0p error gpio line: %d\n", ret);
++		return ret;
++	}
++
++	if (priv_data->error_gpio != NULL) {
++		irqNumber = gpiod_to_irq(priv_data->error_gpio);
++
++		ret = devm_request_threaded_irq(&i2c->dev,
++			 irqNumber, ma120x0p_irq_handler,
++			 NULL, IRQF_TRIGGER_FALLING,
++			 "ma120x0p", priv_data);
++		if (ret != 0)
++			dev_warn(&i2c->dev, "Failed to request IRQ: %d\n",
++				ret);
++	}
++
++	ret = devm_snd_soc_register_component(&i2c->dev,
++		&ma120x0p_component_driver, &ma120x0p_dai, 1);
++
++	return ret;
++}
++
++static irqreturn_t ma120x0p_irq_handler(int irq, void *data)
++{
++	gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
++	gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
++	return IRQ_HANDLED;
++}
++
++static int ma120x0p_i2c_remove(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	i2c_set_clientdata(i2c, NULL);
++
++	gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
++	msleep(30);
++	gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
++	msleep(200);
++	gpiod_set_value_cansleep(priv_data->booster_gpio, 0);
++	msleep(200);
++
++	kfree(priv_data);
++
++	return 0;
++}
++
++static void ma120x0p_i2c_shutdown(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	i2c_set_clientdata(i2c, NULL);
++
++	gpiod_set_value_cansleep(priv_data->mute_gpio, 0);
++	msleep(30);
++	gpiod_set_value_cansleep(priv_data->enable_gpio, 1);
++	msleep(200);
++	gpiod_set_value_cansleep(priv_data->booster_gpio, 0);
++	msleep(200);
++
++	kfree(priv_data);
++}
++
++static const struct i2c_device_id ma120x0p_i2c_id[] = {
++	{ "ma120x0p", 0 },
++	{ }
++};
++
++MODULE_DEVICE_TABLE(i2c, ma120x0p_i2c_id);
++
++static struct i2c_driver ma120x0p_i2c_driver = {
++	.driver = {
++		.name = "ma120x0p",
++		.owner = THIS_MODULE,
++		.of_match_table = ma120x0p_of_match,
++	},
++	.probe = ma120x0p_i2c_probe,
++	.remove = ma120x0p_i2c_remove,
++	.shutdown = ma120x0p_i2c_shutdown,
++	.id_table = ma120x0p_i2c_id
++};
++
++static int __init ma120x0p_modinit(void)
++{
++	int ret = 0;
++
++	ret = i2c_add_driver(&ma120x0p_i2c_driver);
++	if (ret != 0) {
++		pr_err("Failed to register MA120X0P I2C driver: %d\n", ret);
++		return ret;
++	}
++	return ret;
++}
++module_init(ma120x0p_modinit);
++
++static void __exit ma120x0p_exit(void)
++{
++	i2c_del_driver(&ma120x0p_i2c_driver);
++}
++module_exit(ma120x0p_exit);
++
++MODULE_AUTHOR("Ariel Muszkat ariel.muszkat@gmail.com>");
++MODULE_DESCRIPTION("ASoC driver for ma120x0p");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/codecs/pcm1794a.c
+@@ -0,0 +1,69 @@
++/*
++ * Driver for the PCM1794A codec
++ *
++ * Author:	Florian Meier <florian.meier@koalo.de>
++ *		Copyright 2013
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/soc.h>
++
++static struct snd_soc_dai_driver pcm1794a_dai = {
++	.name = "pcm1794a-hifi",
++	.playback = {
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_8000_192000,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			   SNDRV_PCM_FMTBIT_S24_LE
++	},
++};
++
++static struct snd_soc_component_driver soc_component_dev_pcm1794a;
++
++static int pcm1794a_probe(struct platform_device *pdev)
++{
++	return snd_soc_register_component(&pdev->dev, &soc_component_dev_pcm1794a,
++			&pcm1794a_dai, 1);
++}
++
++static int pcm1794a_remove(struct platform_device *pdev)
++{
++	snd_soc_unregister_component(&pdev->dev);
++	return 0;
++}
++
++static const struct of_device_id pcm1794a_of_match[] = {
++	{ .compatible = "ti,pcm1794a", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
++
++static struct platform_driver pcm1794a_component_driver = {
++	.probe 		= pcm1794a_probe,
++	.remove 	= pcm1794a_remove,
++	.driver		= {
++		.name	= "pcm1794a-codec",
++		.owner	= THIS_MODULE,
++		.of_match_table = of_match_ptr(pcm1794a_of_match),
++	},
++};
++
++module_platform_driver(pcm1794a_component_driver);
++
++MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_LICENSE("GPL v2");
+--- a/sound/soc/codecs/pcm512x.c
++++ b/sound/soc/codecs/pcm512x.c
+@@ -534,7 +534,7 @@ static unsigned long pcm512x_ncp_target(
+ 
+ static const u32 pcm512x_dai_rates[] = {
+ 	8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000,
+-	88200, 96000, 176400, 192000, 384000,
++	88200, 96000, 176400, 192000, 352800, 384000,
+ };
+ 
+ static const struct snd_pcm_hw_constraint_list constraints_slave = {
+--- /dev/null
++++ b/sound/soc/codecs/tas5713.c
+@@ -0,0 +1,363 @@
++/*
++ * ASoC Driver for TAS5713
++ *
++ * Author:	Sebastian Eickhoff <basti.eickhoff@googlemail.com>
++ *		Copyright 2014
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/pm.h>
++#include <linux/i2c.h>
++#include <linux/of_device.h>
++#include <linux/spi/spi.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <linux/slab.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/initval.h>
++#include <sound/tlv.h>
++
++#include <linux/kernel.h>
++#include <linux/string.h>
++#include <linux/fs.h>
++#include <asm/uaccess.h>
++
++#include "tas5713.h"
++
++
++static struct i2c_client *i2c;
++
++struct tas5713_priv {
++	struct regmap *regmap;
++	int mclk_div;
++	struct snd_soc_component *component;
++};
++
++static struct tas5713_priv *priv_data;
++
++
++
++
++/*
++ *    _   _    ___   _      ___         _           _
++ *   /_\ | |  / __| /_\    / __|___ _ _| |_ _ _ ___| |___
++ *  / _ \| |__\__ \/ _ \  | (__/ _ \ ' \  _| '_/ _ \ (_-<
++ * /_/ \_\____|___/_/ \_\  \___\___/_||_\__|_| \___/_/__/
++ *
++ */
++
++static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1);
++
++
++static const struct snd_kcontrol_new tas5713_snd_controls[] = {
++	SOC_SINGLE_TLV  ("Master"    , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv),
++	SOC_DOUBLE_R_TLV("Channels"  , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv)
++};
++
++
++
++
++/*
++ *  __  __         _    _            ___      _
++ * |  \/  |__ _ __| |_ (_)_ _  ___  |   \ _ _(_)_ _____ _ _
++ * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_|
++ * |_|  |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static int tas5713_hw_params(struct snd_pcm_substream *substream,
++			    struct snd_pcm_hw_params *params,
++			    struct snd_soc_dai *dai)
++{
++	u16 blen = 0x00;
++
++	struct snd_soc_component *component = dai->component;
++	priv_data->component = component;
++
++	switch (params_format(params)) {
++	case SNDRV_PCM_FORMAT_S16_LE:
++		blen = 0x03;
++		break;
++	case SNDRV_PCM_FORMAT_S20_3LE:
++		blen = 0x1;
++		break;
++	case SNDRV_PCM_FORMAT_S24_LE:
++		blen = 0x04;
++		break;
++	case SNDRV_PCM_FORMAT_S32_LE:
++		blen = 0x05;
++		break;
++	default:
++		dev_err(dai->dev, "Unsupported word length: %u\n",
++			params_format(params));
++		return -EINVAL;
++	}
++
++	// set word length
++	snd_soc_component_update_bits(component, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen);
++
++	return 0;
++}
++
++
++static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
++{
++	unsigned int val = 0;
++
++	struct tas5713_priv *tas5713;
++	struct snd_soc_component *component = dai->component;
++	tas5713 = snd_soc_component_get_drvdata(component);
++
++	if (mute) {
++		val = TAS5713_SOFT_MUTE_ALL;
++	}
++
++	return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val);
++}
++
++
++static const struct snd_soc_dai_ops tas5713_dai_ops = {
++	.hw_params 		= tas5713_hw_params,
++	.mute_stream	= tas5713_mute_stream,
++};
++
++
++static struct snd_soc_dai_driver tas5713_dai = {
++	.name		= "tas5713-hifi",
++	.playback 	= {
++		.stream_name	= "Playback",
++		.channels_min	= 2,
++		.channels_max	= 2,
++		.rates		    = SNDRV_PCM_RATE_8000_48000,
++		.formats	    = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ),
++	},
++	.ops        = &tas5713_dai_ops,
++};
++
++
++
++
++/*
++ *   ___         _          ___      _
++ *  / __|___  __| |___ __  |   \ _ _(_)_ _____ _ _
++ * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_|
++ *  \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static void tas5713_remove(struct snd_soc_component *component)
++{
++	struct tas5713_priv *tas5713;
++
++	tas5713 = snd_soc_component_get_drvdata(component);
++}
++
++
++static int tas5713_probe(struct snd_soc_component *component)
++{
++	struct tas5713_priv *tas5713;
++	int i, ret;
++
++	i2c = container_of(component->dev, struct i2c_client, dev);
++
++	tas5713 = snd_soc_component_get_drvdata(component);
++
++	// Reset error
++	ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
++	if (ret < 0) return ret;
++
++	// Trim oscillator
++	ret = snd_soc_component_write(component, TAS5713_OSC_TRIM, 0x00);
++	if (ret < 0) return ret;
++	msleep(1000);
++
++	// Reset error
++	ret = snd_soc_component_write(component, TAS5713_ERROR_STATUS, 0x00);
++	if (ret < 0) return ret;
++
++	// I2S 24bit
++	ret = snd_soc_component_write(component, TAS5713_SERIAL_DATA_INTERFACE, 0x05);
++	if (ret < 0) return ret;
++
++	// Unmute
++	ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
++	if (ret < 0) return ret;
++	ret = snd_soc_component_write(component, TAS5713_SOFT_MUTE, 0x00);
++	if (ret < 0) return ret;
++
++	// Set volume to 0db
++	ret = snd_soc_component_write(component, TAS5713_VOL_MASTER, 0x00);
++	if (ret < 0) return ret;
++
++	// Now start programming the default initialization sequence
++	for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) {
++		ret = i2c_master_send(i2c,
++				     tas5713_init_sequence[i].data,
++				     tas5713_init_sequence[i].size);
++		if (ret < 0) {
++			printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret);
++		}
++	}
++
++	// Unmute
++	ret = snd_soc_component_write(component, TAS5713_SYSTEM_CTRL2, 0x00);
++	if (ret < 0) return ret;
++
++	return 0;
++}
++
++
++static struct snd_soc_component_driver soc_codec_dev_tas5713 = {
++	.probe = tas5713_probe,
++	.remove = tas5713_remove,
++	.controls = tas5713_snd_controls,
++	.num_controls = ARRAY_SIZE(tas5713_snd_controls),
++};
++
++
++
++
++/*
++ *   ___ ___ ___   ___      _
++ *  |_ _|_  ) __| |   \ _ _(_)_ _____ _ _
++ *   | | / / (__  | |) | '_| \ V / -_) '_|
++ *  |___/___\___| |___/|_| |_|\_/\___|_|
++ *
++ */
++
++static const struct reg_default tas5713_reg_defaults[] = {
++	{ 0x07 ,0x80 },     // R7  - VOL_MASTER    - -40dB
++	{ 0x08 ,  30 },     // R8  - VOL_CH1	   -   0dB
++	{ 0x09 ,  30 },     // R9  - VOL_CH2       -   0dB
++	{ 0x0A ,0x80 },     // R10 - VOL_HEADPHONE - -40dB
++};
++
++
++static bool tas5713_reg_volatile(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++		case TAS5713_DEVICE_ID:
++		case TAS5713_ERROR_STATUS:
++		case TAS5713_CLOCK_CTRL:
++			return true;
++	default:
++			return false;
++	}
++}
++
++
++static const struct of_device_id tas5713_of_match[] = {
++	{ .compatible = "ti,tas5713", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, tas5713_of_match);
++
++
++static struct regmap_config tas5713_regmap_config = {
++	.reg_bits = 8,
++	.val_bits = 8,
++
++	.max_register = TAS5713_MAX_REGISTER,
++	.volatile_reg = tas5713_reg_volatile,
++
++	.cache_type = REGCACHE_RBTREE,
++	.reg_defaults = tas5713_reg_defaults,
++	.num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults),
++};
++
++
++static int tas5713_i2c_probe(struct i2c_client *i2c,
++			    const struct i2c_device_id *id)
++{
++	int ret;
++
++	priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL);
++	if (!priv_data)
++		return -ENOMEM;
++
++	priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config);
++	if (IS_ERR(priv_data->regmap)) {
++		ret = PTR_ERR(priv_data->regmap);
++		return ret;
++	}
++
++	i2c_set_clientdata(i2c, priv_data);
++
++	ret = snd_soc_register_component(&i2c->dev,
++				     &soc_codec_dev_tas5713, &tas5713_dai, 1);
++
++	return ret;
++}
++
++
++static int tas5713_i2c_remove(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	i2c_set_clientdata(i2c, NULL);
++
++	kfree(priv_data);
++
++	return 0;
++}
++
++
++static const struct i2c_device_id tas5713_i2c_id[] = {
++	{ "tas5713", 0 },
++	{ }
++};
++
++MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id);
++
++
++static struct i2c_driver tas5713_i2c_driver = {
++	.driver = {
++		.name = "tas5713",
++		.owner = THIS_MODULE,
++		.of_match_table = tas5713_of_match,
++	},
++	.probe = tas5713_i2c_probe,
++	.remove = tas5713_i2c_remove,
++	.id_table = tas5713_i2c_id
++};
++
++
++static int __init tas5713_modinit(void)
++{
++	int ret = 0;
++
++	ret = i2c_add_driver(&tas5713_i2c_driver);
++	if (ret) {
++		printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n",
++		       ret);
++	}
++
++	return ret;
++}
++module_init(tas5713_modinit);
++
++
++static void __exit tas5713_exit(void)
++{
++	i2c_del_driver(&tas5713_i2c_driver);
++}
++module_exit(tas5713_exit);
++
++
++MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
++MODULE_DESCRIPTION("ASoC driver for TAS5713");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/codecs/tas5713.h
+@@ -0,0 +1,210 @@
++/*
++ * ASoC Driver for TAS5713
++ *
++ * Author:      Sebastian Eickhoff <basti.eickhoff@googlemail.com>
++ *              Copyright 2014
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#ifndef _TAS5713_H
++#define _TAS5713_H
++
++
++// TAS5713 I2C-bus register addresses
++
++#define TAS5713_CLOCK_CTRL              0x00
++#define TAS5713_DEVICE_ID               0x01
++#define TAS5713_ERROR_STATUS            0x02
++#define TAS5713_SYSTEM_CTRL1            0x03
++#define TAS5713_SERIAL_DATA_INTERFACE   0x04
++#define TAS5713_SYSTEM_CTRL2            0x05
++#define TAS5713_SOFT_MUTE               0x06
++#define TAS5713_VOL_MASTER              0x07
++#define TAS5713_VOL_CH1                 0x08
++#define TAS5713_VOL_CH2                 0x09
++#define TAS5713_VOL_HEADPHONE           0x0A
++#define TAS5713_VOL_CONFIG              0x0E
++#define TAS5713_MODULATION_LIMIT        0x10
++#define TAS5713_IC_DLY_CH1              0x11
++#define TAS5713_IC_DLY_CH2              0x12
++#define TAS5713_IC_DLY_CH3              0x13
++#define TAS5713_IC_DLY_CH4              0x14
++
++#define TAS5713_START_STOP_PERIOD       0x1A
++#define TAS5713_OSC_TRIM                0x1B
++#define TAS5713_BKND_ERR                0x1C
++
++#define TAS5713_INPUT_MUX               0x20
++#define TAS5713_SRC_SELECT_CH4          0x21
++#define TAS5713_PWM_MUX                 0x25
++
++#define TAS5713_CH1_BQ0                 0x29
++#define TAS5713_CH1_BQ1                 0x2A
++#define TAS5713_CH1_BQ2                 0x2B
++#define TAS5713_CH1_BQ3                 0x2C
++#define TAS5713_CH1_BQ4                 0x2D
++#define TAS5713_CH1_BQ5                 0x2E
++#define TAS5713_CH1_BQ6                 0x2F
++#define TAS5713_CH1_BQ7                 0x58
++#define TAS5713_CH1_BQ8                 0x59
++
++#define TAS5713_CH2_BQ0                 0x30
++#define TAS5713_CH2_BQ1                 0x31
++#define TAS5713_CH2_BQ2                 0x32
++#define TAS5713_CH2_BQ3                 0x33
++#define TAS5713_CH2_BQ4                 0x34
++#define TAS5713_CH2_BQ5                 0x35
++#define TAS5713_CH2_BQ6                 0x36
++#define TAS5713_CH2_BQ7                 0x5C
++#define TAS5713_CH2_BQ8                 0x5D
++
++#define TAS5713_CH4_BQ0                 0x5A
++#define TAS5713_CH4_BQ1                 0x5B
++#define TAS5713_CH3_BQ0                 0x5E
++#define TAS5713_CH3_BQ1                 0x5F
++
++#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA       0x3B
++#define TAS5713_DRC1_ATTACK_RELEASE_RATE                0x3C
++#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA       0x3E
++#define TAS5713_DRC2_ATTACK_RELEASE_RATE                0x3F
++#define TAS5713_DRC1_ATTACK_RELEASE_THRES               0x40
++#define TAS5713_DRC2_ATTACK_RELEASE_THRES               0x43
++#define TAS5713_DRC_CTRL                                0x46
++
++#define TAS5713_BANK_SW_CTRL            0x50
++#define TAS5713_CH1_OUTPUT_MIXER        0x51
++#define TAS5713_CH2_OUTPUT_MIXER        0x52
++#define TAS5713_CH1_INPUT_MIXER         0x53
++#define TAS5713_CH2_INPUT_MIXER         0x54
++#define TAS5713_OUTPUT_POST_SCALE       0x56
++#define TAS5713_OUTPUT_PRESCALE         0x57
++
++#define TAS5713_IDF_POST_SCALE          0x62
++
++#define TAS5713_CH1_INLINE_MIXER        0x70
++#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71
++#define TAS5713_CH1_R_CHANNEL_MIXER     0x72
++#define TAS5713_CH1_L_CHANNEL_MIXER     0x73
++#define TAS5713_CH2_INLINE_MIXER        0x74
++#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75
++#define TAS5713_CH2_L_CHANNEL_MIXER     0x76
++#define TAS5713_CH2_R_CHANNEL_MIXER     0x77
++
++#define TAS5713_UPDATE_DEV_ADDR_KEY     0xF8
++#define TAS5713_UPDATE_DEV_ADDR_REG     0xF9
++
++#define TAS5713_REGISTER_COUNT          0x46
++#define TAS5713_MAX_REGISTER            0xF9
++
++
++// Bitmasks for registers
++#define TAS5713_SOFT_MUTE_ALL           0x07
++
++
++
++struct tas5713_init_command {
++        const int size;
++        const char *const data;
++};
++
++static const struct tas5713_init_command tas5713_init_sequence[] = {
++
++        // Trim oscillator
++    { .size = 2,  .data = "\x1B\x00" },
++    // System control register 1 (0x03): block DC
++    { .size = 2,  .data = "\x03\x80" },
++    // Mute everything
++    { .size = 2,  .data = "\x05\x40" },
++    // Modulation limit register (0x10): 97.7%
++    { .size = 2,  .data = "\x10\x02" },
++    // Interchannel delay registers
++    // (0x11, 0x12, 0x13, and 0x14): BD mode
++    { .size = 2,  .data = "\x11\xB8" },
++    { .size = 2,  .data = "\x12\x60" },
++    { .size = 2,  .data = "\x13\xA0" },
++    { .size = 2,  .data = "\x14\x48" },
++    // PWM shutdown group register (0x19): no shutdown
++    { .size = 2,  .data = "\x19\x00" },
++    // Input multiplexer register (0x20): BD mode
++    { .size = 2,  .data = "\x20\x00\x89\x77\x72" },
++    // PWM output mux register (0x25)
++    // Channel 1 --> OUTA, channel 1 neg --> OUTB
++    // Channel 2 --> OUTC, channel 2 neg --> OUTD
++    { .size = 5,  .data = "\x25\x01\x02\x13\x45" },
++    // DRC control (0x46): DRC off
++    { .size = 5,  .data = "\x46\x00\x00\x00\x00" },
++    // BKND_ERR register (0x1C): 299ms reset period
++    { .size = 2,  .data = "\x1C\x07" },
++    // Mute channel 3
++    { .size = 2,  .data = "\x0A\xFF" },
++    // Volume configuration register (0x0E): volume slew 512 steps
++    { .size = 2,  .data = "\x0E\x90" },
++    // Clock control register (0x00): 44/48kHz, MCLK=64xfs
++    { .size = 2,  .data = "\x00\x60" },
++    // Bank switch and eq control (0x50): no bank switching
++    { .size = 5,  .data = "\x50\x00\x00\x00\x00" },
++    // Volume registers (0x07, 0x08, 0x09, 0x0A)
++    { .size = 2,  .data = "\x07\x20" },
++    { .size = 2,  .data = "\x08\x30" },
++    { .size = 2,  .data = "\x09\x30" },
++    { .size = 2,  .data = "\x0A\xFF" },
++    // 0x72, 0x73, 0x76, 0x77 input mixer:
++    // no intermix between channels
++    { .size = 5,  .data = "\x72\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x73\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x76\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x77\x00\x80\x00\x00" },
++    // 0x70, 0x71, 0x74, 0x75 inline DRC mixer:
++    // no inline DRC inmix
++    { .size = 5,  .data = "\x70\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x71\x00\x00\x00\x00" },
++    { .size = 5,  .data = "\x74\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x75\x00\x00\x00\x00" },
++    // 0x56, 0x57 Output scale
++    { .size = 5,  .data = "\x56\x00\x80\x00\x00" },
++    { .size = 5,  .data = "\x57\x00\x02\x00\x00" },
++    // 0x3B, 0x3c
++    { .size = 9,  .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" },
++    { .size = 9,  .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" },
++    { .size = 9,  .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    { .size = 9,  .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
++    // 0x51, 0x52: output mixer
++    { .size = 9,  .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" },
++    { .size = 9,  .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" },
++    // PEQ defaults
++    { .size = 21,  .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++    { .size = 21,  .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
++};
++
++
++#endif  /* _TAS5713_H */
+--- a/sound/soc/soc-core.c
++++ b/sound/soc/soc-core.c
+@@ -1429,7 +1429,15 @@ int snd_soc_runtime_set_dai_fmt(struct s
+ 	int ret;
+ 
+ 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
+-		ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
++		unsigned int codec_dai_fmt = dai_fmt;
++
++		// there can only be one master when using multiple codecs
++		if (i && (codec_dai_fmt & SND_SOC_DAIFMT_MASTER_MASK)) {
++			codec_dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
++			codec_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
++		}
++
++		ret = snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
+ 		if (ret != 0 && ret != -ENOTSUPP) {
+ 			dev_warn(codec_dai->dev,
+ 				 "ASoC: Failed to set DAI format: %d\n", ret);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0061-Fixes-a-problem-when-module-probes-before-i2c-module.patch b/target/linux/bcm27xx/patches-5.10/950-0061-Fixes-a-problem-when-module-probes-before-i2c-module.patch
new file mode 100644
index 0000000000..f4dc7b6289
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0061-Fixes-a-problem-when-module-probes-before-i2c-module.patch
@@ -0,0 +1,46 @@
+From 4be98b29d123fc7615ea8404fbda450ec8acb084 Mon Sep 17 00:00:00 2001
+From: Joerg Schambacher <joerg@i2audio.com>
+Date: Fri, 16 Oct 2020 15:17:07 +0200
+Subject: [PATCH] Fixes a problem when module probes before i2c module
+ is available
+
+The driver crashed while a NULL pointer returned by i2c_get_adapter()
+has been used to access the i2c bus functions.
+The headphone probing function hb_hp_probe() now returns -EPROBE_DEFER
+in case the i2c module has not been loaded yet.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+---
+ sound/soc/bcm/hifiberry_dacplus.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+--- a/sound/soc/bcm/hifiberry_dacplus.c
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -315,12 +315,14 @@ static int hb_hp_detect(void)
+ {
+ 	struct i2c_adapter *adap = i2c_get_adapter(1);
+ 	int ret;
+-
+ 	struct i2c_client tpa_i2c_client = {
+ 		.addr = 0x60,
+ 		.adapter = adap,
+ 	};
+ 
++	if (!adap)
++		return -EPROBE_DEFER;	/* I2C module not yet available */
++
+ 	ret = i2c_smbus_read_byte(&tpa_i2c_client) >= 0;
+ 	i2c_put_adapter(adap);
+ 	return ret;
+@@ -342,7 +344,10 @@ static int snd_rpi_hifiberry_dacplus_pro
+ 	struct of_changeset ocs;
+ 
+ 	/* probe for head phone amp */
+-	if (hb_hp_detect()) {
++	ret = hb_hp_detect();
++	if (ret < 0)
++		return ret;
++	if (ret) {
+ 		card->aux_dev = hifiberry_dacplus_aux_devs;
+ 		card->num_aux_devs =
+ 				ARRAY_SIZE(hifiberry_dacplus_aux_devs);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0062-rpi_display-add-backlight-driver-and-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0062-rpi_display-add-backlight-driver-and-overlay.patch
new file mode 100644
index 0000000000..151e9e9b7e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0062-rpi_display-add-backlight-driver-and-overlay.patch
@@ -0,0 +1,172 @@
+From 3bbdfc9493655ea9ff7e3c8eeee85f28b0f84369 Mon Sep 17 00:00:00 2001
+From: P33M <P33M@github.com>
+Date: Wed, 21 Oct 2015 14:55:21 +0100
+Subject: [PATCH] rpi_display: add backlight driver and overlay
+
+Add a mailbox-driven backlight controller for the Raspberry Pi DSI
+touchscreen display. Requires updated GPU firmware to recognise the
+mailbox request.
+
+Signed-off-by: Gordon Hollingworth <gordon@raspberrypi.org>
+
+Add Raspberry Pi firmware driver to the dependencies of backlight driver
+
+Otherwise the backlight driver fails to build if the firmware
+loading driver is not in the kernel
+
+Signed-off-by: Alex Riesen <alexander.riesen@cetitec.com>
+---
+ drivers/video/backlight/Kconfig         |   7 ++
+ drivers/video/backlight/Makefile        |   1 +
+ drivers/video/backlight/rpi_backlight.c | 119 ++++++++++++++++++++++++
+ 3 files changed, 127 insertions(+)
+ create mode 100644 drivers/video/backlight/rpi_backlight.c
+
+--- a/drivers/video/backlight/Kconfig
++++ b/drivers/video/backlight/Kconfig
+@@ -248,6 +248,13 @@ config BACKLIGHT_PWM
+ 	  If you have a LCD backlight adjustable by PWM, say Y to enable
+ 	  this driver.
+ 
++config BACKLIGHT_RPI
++	tristate "Raspberry Pi display firmware driven backlight"
++	depends on RASPBERRYPI_FIRMWARE
++	help
++	  If you have the Raspberry Pi DSI touchscreen display, say Y to
++	  enable the mailbox-controlled backlight driver.
++
+ config BACKLIGHT_DA903X
+ 	tristate "Backlight Driver for DA9030/DA9034 using WLED"
+ 	depends on PMIC_DA903X
+--- a/drivers/video/backlight/Makefile
++++ b/drivers/video/backlight/Makefile
+@@ -49,6 +49,7 @@ obj-$(CONFIG_BACKLIGHT_PANDORA)		+= pand
+ obj-$(CONFIG_BACKLIGHT_PCF50633)	+= pcf50633-backlight.o
+ obj-$(CONFIG_BACKLIGHT_PWM)		+= pwm_bl.o
+ obj-$(CONFIG_BACKLIGHT_QCOM_WLED)	+= qcom-wled.o
++obj-$(CONFIG_BACKLIGHT_RPI)			+= rpi_backlight.o
+ obj-$(CONFIG_BACKLIGHT_SAHARA)		+= kb3886_bl.o
+ obj-$(CONFIG_BACKLIGHT_SKY81452)	+= sky81452-backlight.o
+ obj-$(CONFIG_BACKLIGHT_TOSA)		+= tosa_bl.o
+--- /dev/null
++++ b/drivers/video/backlight/rpi_backlight.c
+@@ -0,0 +1,119 @@
++/*
++ * rpi_bl.c - Backlight controller through VPU
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/backlight.h>
++#include <linux/err.h>
++#include <linux/fb.h>
++#include <linux/gpio.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/of_gpio.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++struct rpi_backlight {
++	struct device *dev;
++	struct device *fbdev;
++	struct rpi_firmware *fw;
++};
++
++static int rpi_backlight_update_status(struct backlight_device *bl)
++{
++	struct rpi_backlight *gbl = bl_get_data(bl);
++	int brightness = bl->props.brightness;
++	int ret;
++
++	if (bl->props.power != FB_BLANK_UNBLANK ||
++	    bl->props.fb_blank != FB_BLANK_UNBLANK ||
++	    bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
++		brightness = 0;
++
++	ret = rpi_firmware_property(gbl->fw,
++			RPI_FIRMWARE_FRAMEBUFFER_SET_BACKLIGHT,
++			&brightness, sizeof(brightness));
++	if (ret) {
++		dev_err(gbl->dev, "Failed to set brightness\n");
++		return ret;
++	}
++
++	if (brightness < 0) {
++		dev_err(gbl->dev, "Backlight change failed\n");
++		return -EAGAIN;
++	}
++
++	return 0;
++}
++
++static const struct backlight_ops rpi_backlight_ops = {
++	.options	= BL_CORE_SUSPENDRESUME,
++	.update_status	= rpi_backlight_update_status,
++};
++
++static int rpi_backlight_probe(struct platform_device *pdev)
++{
++	struct backlight_properties props;
++	struct backlight_device *bl;
++	struct rpi_backlight *gbl;
++	struct device_node *fw_node;
++
++	gbl = devm_kzalloc(&pdev->dev, sizeof(*gbl), GFP_KERNEL);
++	if (gbl == NULL)
++		return -ENOMEM;
++
++	gbl->dev = &pdev->dev;
++
++	fw_node = of_parse_phandle(pdev->dev.of_node, "firmware", 0);
++	if (!fw_node) {
++		dev_err(&pdev->dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	gbl->fw = rpi_firmware_get(fw_node);
++	if (!gbl->fw)
++		return -EPROBE_DEFER;
++
++	memset(&props, 0, sizeof(props));
++	props.type = BACKLIGHT_RAW;
++	props.max_brightness = 255;
++	bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
++					&pdev->dev, gbl, &rpi_backlight_ops,
++					&props);
++	if (IS_ERR(bl)) {
++		dev_err(&pdev->dev, "failed to register backlight\n");
++		return PTR_ERR(bl);
++	}
++
++	bl->props.brightness = 255;
++	backlight_update_status(bl);
++
++	platform_set_drvdata(pdev, bl);
++	return 0;
++}
++
++static const struct of_device_id rpi_backlight_of_match[] = {
++	{ .compatible = "raspberrypi,rpi-backlight" },
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, rpi_backlight_of_match);
++
++static struct platform_driver rpi_backlight_driver = {
++	.driver		= {
++		.name		= "rpi-backlight",
++		.of_match_table = of_match_ptr(rpi_backlight_of_match),
++	},
++	.probe		= rpi_backlight_probe,
++};
++
++module_platform_driver(rpi_backlight_driver);
++
++MODULE_AUTHOR("Gordon Hollingworth <gordon@raspberrypi.org>");
++MODULE_DESCRIPTION("Raspberry Pi mailbox based Backlight Driver");
++MODULE_LICENSE("GPL");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0063-bcm2835-virtgpio-Virtual-GPIO-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0063-bcm2835-virtgpio-Virtual-GPIO-driver.patch
new file mode 100644
index 0000000000..1d02e42a1d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0063-bcm2835-virtgpio-Virtual-GPIO-driver.patch
@@ -0,0 +1,256 @@
+From f82deda879262289568dec22dd43ecc10c265fb6 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 23 Feb 2016 19:56:04 +0000
+Subject: [PATCH] bcm2835-virtgpio: Virtual GPIO driver
+
+Add a virtual GPIO driver that uses the firmware mailbox interface to
+request that the VPU toggles LEDs.
+---
+ drivers/gpio/Kconfig         |   6 +
+ drivers/gpio/Makefile        |   1 +
+ drivers/gpio/gpio-bcm-virt.c | 214 +++++++++++++++++++++++++++++++++++
+ 3 files changed, 221 insertions(+)
+ create mode 100644 drivers/gpio/gpio-bcm-virt.c
+
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -193,6 +193,12 @@ config GPIO_BCM_XGS_IPROC
+ 	help
+ 	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
+ 
++config GPIO_BCM_VIRT
++	bool "Broadcom Virt GPIO"
++	depends on OF_GPIO && RASPBERRYPI_FIRMWARE && (ARCH_BCM2835 || COMPILE_TEST)
++	help
++	  Turn on virtual GPIO support for Broadcom BCM283X chips.
++
+ config GPIO_BRCMSTB
+ 	tristate "BRCMSTB GPIO support"
+ 	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
+--- a/drivers/gpio/Makefile
++++ b/drivers/gpio/Makefile
+@@ -38,6 +38,7 @@ obj-$(CONFIG_GPIO_ASPEED_SGPIO)		+= gpio
+ obj-$(CONFIG_GPIO_ATH79)		+= gpio-ath79.o
+ obj-$(CONFIG_GPIO_BCM_KONA)		+= gpio-bcm-kona.o
+ obj-$(CONFIG_GPIO_BCM_XGS_IPROC)	+= gpio-xgs-iproc.o
++obj-$(CONFIG_GPIO_BCM_VIRT)		+= gpio-bcm-virt.o
+ obj-$(CONFIG_GPIO_BD70528)		+= gpio-bd70528.o
+ obj-$(CONFIG_GPIO_BD71828)		+= gpio-bd71828.o
+ obj-$(CONFIG_GPIO_BD9571MWV)		+= gpio-bd9571mwv.o
+--- /dev/null
++++ b/drivers/gpio/gpio-bcm-virt.c
+@@ -0,0 +1,214 @@
++/*
++ *  brcmvirt GPIO driver
++ *
++ *  Copyright (C) 2012,2013 Dom Cobley <popcornmix@gmail.com>
++ *  Based on gpio-clps711x.c by Alexander Shiyan <shc_work@mail.ru>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#include <linux/err.h>
++#include <linux/gpio.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/dma-mapping.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define MODULE_NAME "brcmvirt-gpio"
++#define NUM_GPIO 2
++
++struct brcmvirt_gpio {
++	struct gpio_chip	gc;
++	u32 __iomem		*ts_base;
++	/* two packed 16-bit counts of enabled and disables
++           Allows host to detect a brief enable that was missed */
++	u32			enables_disables[NUM_GPIO];
++	dma_addr_t		bus_addr;
++};
++
++static int brcmvirt_gpio_dir_in(struct gpio_chip *gc, unsigned off)
++{
++	struct brcmvirt_gpio *gpio;
++	gpio = container_of(gc, struct brcmvirt_gpio, gc);
++	return -EINVAL;
++}
++
++static int brcmvirt_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val)
++{
++	struct brcmvirt_gpio *gpio;
++	gpio = container_of(gc, struct brcmvirt_gpio, gc);
++	return 0;
++}
++
++static int brcmvirt_gpio_get(struct gpio_chip *gc, unsigned off)
++{
++	struct brcmvirt_gpio *gpio;
++	unsigned v;
++	gpio = container_of(gc, struct brcmvirt_gpio, gc);
++	v = readl(gpio->ts_base + off);
++	return (v >> off) & 1;
++}
++
++static void brcmvirt_gpio_set(struct gpio_chip *gc, unsigned off, int val)
++{
++	struct brcmvirt_gpio *gpio;
++	u16 enables, disables;
++	s16 diff;
++	bool lit;
++	gpio = container_of(gc, struct brcmvirt_gpio, gc);
++	enables  = gpio->enables_disables[off] >> 16;
++	disables = gpio->enables_disables[off] >>  0;
++	diff = (s16)(enables - disables);
++	lit = diff > 0;
++	if ((val && lit) || (!val && !lit))
++		return;
++	if (val)
++		enables++;
++	else
++		disables++;
++	diff = (s16)(enables - disables);
++	BUG_ON(diff != 0 && diff != 1);
++	gpio->enables_disables[off] = (enables << 16) | (disables << 0);
++	writel(gpio->enables_disables[off], gpio->ts_base + off);
++}
++
++static int brcmvirt_gpio_probe(struct platform_device *pdev)
++{
++	int err = 0;
++	struct device *dev = &pdev->dev;
++	struct device_node *np = dev->of_node;
++	struct device_node *fw_node;
++	struct rpi_firmware *fw;
++	struct brcmvirt_gpio *ucb;
++	u32 gpiovirtbuf;
++
++	fw_node = of_parse_phandle(np, "firmware", 0);
++	if (!fw_node) {
++		dev_err(dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	fw = rpi_firmware_get(fw_node);
++	if (!fw)
++		return -EPROBE_DEFER;
++
++	ucb = devm_kzalloc(dev, sizeof *ucb, GFP_KERNEL);
++	if (!ucb) {
++		err = -EINVAL;
++		goto out;
++	}
++
++	ucb->ts_base = dma_alloc_coherent(dev, PAGE_SIZE, &ucb->bus_addr, GFP_KERNEL);
++	if (!ucb->ts_base) {
++		pr_err("[%s]: failed to dma_alloc_coherent(%ld)\n",
++				__func__, PAGE_SIZE);
++		err = -ENOMEM;
++		goto out;
++	}
++
++	gpiovirtbuf = (u32)ucb->bus_addr;
++	err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_SET_GPIOVIRTBUF,
++				    &gpiovirtbuf, sizeof(gpiovirtbuf));
++
++	if (err || gpiovirtbuf != 0) {
++		dev_warn(dev, "Failed to set gpiovirtbuf, trying to get err:%x\n", err);
++		dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
++		ucb->ts_base = 0;
++		ucb->bus_addr = 0;
++	}
++
++	if (!ucb->ts_base) {
++		err = rpi_firmware_property(fw, RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF,
++					    &gpiovirtbuf, sizeof(gpiovirtbuf));
++
++		if (err) {
++			dev_err(dev, "Failed to get gpiovirtbuf\n");
++			goto out;
++		}
++
++		if (!gpiovirtbuf) {
++			dev_err(dev, "No virtgpio buffer\n");
++			err = -ENOENT;
++			goto out;
++		}
++
++		// mmap the physical memory
++		gpiovirtbuf &= ~0xc0000000;
++		ucb->ts_base = ioremap(gpiovirtbuf, 4096);
++		if (ucb->ts_base == NULL) {
++			dev_err(dev, "Failed to map physical address\n");
++			err = -ENOENT;
++			goto out;
++		}
++		ucb->bus_addr = 0;
++	}
++	ucb->gc.label = MODULE_NAME;
++	ucb->gc.owner = THIS_MODULE;
++	//ucb->gc.dev = dev;
++	ucb->gc.of_node = np;
++	ucb->gc.base = 100;
++	ucb->gc.ngpio = NUM_GPIO;
++
++	ucb->gc.direction_input = brcmvirt_gpio_dir_in;
++	ucb->gc.direction_output = brcmvirt_gpio_dir_out;
++	ucb->gc.get = brcmvirt_gpio_get;
++	ucb->gc.set = brcmvirt_gpio_set;
++	ucb->gc.can_sleep = true;
++
++	err = gpiochip_add(&ucb->gc);
++	if (err)
++		goto out;
++
++	platform_set_drvdata(pdev, ucb);
++
++	return 0;
++out:
++	if (ucb->bus_addr) {
++		dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
++		ucb->bus_addr = 0;
++		ucb->ts_base = NULL;
++	} else if (ucb->ts_base) {
++		iounmap(ucb->ts_base);
++		ucb->ts_base = NULL;
++	}
++	return err;
++}
++
++static int brcmvirt_gpio_remove(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	int err = 0;
++	struct brcmvirt_gpio *ucb = platform_get_drvdata(pdev);
++
++	gpiochip_remove(&ucb->gc);
++	if (ucb->bus_addr)
++		dma_free_coherent(dev, PAGE_SIZE, ucb->ts_base, ucb->bus_addr);
++	else if (ucb->ts_base)
++		iounmap(ucb->ts_base);
++	return err;
++}
++
++static const struct of_device_id __maybe_unused brcmvirt_gpio_ids[] = {
++	{ .compatible = "brcm,bcm2835-virtgpio" },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, brcmvirt_gpio_ids);
++
++static struct platform_driver brcmvirt_gpio_driver = {
++	.driver	= {
++		.name		= MODULE_NAME,
++		.owner		= THIS_MODULE,
++		.of_match_table	= of_match_ptr(brcmvirt_gpio_ids),
++	},
++	.probe	= brcmvirt_gpio_probe,
++	.remove	= brcmvirt_gpio_remove,
++};
++module_platform_driver(brcmvirt_gpio_driver);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Dom Cobley <popcornmix@gmail.com>");
++MODULE_DESCRIPTION("brcmvirt GPIO driver");
++MODULE_ALIAS("platform:brcmvirt-gpio");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0064-OF-DT-Overlay-configfs-interface.patch b/target/linux/bcm27xx/patches-5.10/950-0064-OF-DT-Overlay-configfs-interface.patch
new file mode 100644
index 0000000000..bf156927a8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0064-OF-DT-Overlay-configfs-interface.patch
@@ -0,0 +1,427 @@
+From 3027a12f910d164be1cb7c028dd178409ace7f0a Mon Sep 17 00:00:00 2001
+From: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+Date: Wed, 3 Dec 2014 13:23:28 +0200
+Subject: [PATCH] OF: DT-Overlay configfs interface
+
+This is a port of Pantelis Antoniou's v3 port that makes use of the
+new upstreamed configfs support for binary attributes.
+
+Original commit message:
+
+Add a runtime interface to using configfs for generic device tree overlay
+usage. With it its possible to use device tree overlays without having
+to use a per-platform overlay manager.
+
+Please see Documentation/devicetree/configfs-overlays.txt for more info.
+
+Changes since v2:
+- Removed ifdef CONFIG_OF_OVERLAY (since for now it's required)
+- Created a documentation entry
+- Slight rewording in Kconfig
+
+Changes since v1:
+- of_resolve() -> of_resolve_phandles().
+
+Originally-signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+DT configfs: Fix build errors on other platforms
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+DT configfs: fix build error
+
+There is an error when compiling rpi-4.6.y branch:
+  CC      drivers/of/configfs.o
+drivers/of/configfs.c:291:21: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
+   .default_groups = of_cfs_def_groups,
+                     ^
+drivers/of/configfs.c:291:21: note: (near initialization for 'of_cfs_subsys.su_group.default_groups.next')
+
+The .default_groups is linked list since commit
+1ae1602de028acaa42a0f6ff18d19756f8e825c6.
+This commit uses configfs_add_default_group to fix this problem.
+
+Signed-off-by: Slawomir Stepien <sst@poczta.fm>
+
+configfs: New of_overlay API
+---
+ .../devicetree/configfs-overlays.txt          |  31 ++
+ drivers/of/Kconfig                            |   7 +
+ drivers/of/Makefile                           |   1 +
+ drivers/of/configfs.c                         | 310 ++++++++++++++++++
+ 4 files changed, 349 insertions(+)
+ create mode 100644 Documentation/devicetree/configfs-overlays.txt
+ create mode 100644 drivers/of/configfs.c
+
+--- /dev/null
++++ b/Documentation/devicetree/configfs-overlays.txt
+@@ -0,0 +1,31 @@
++Howto use the configfs overlay interface.
++
++A device-tree configfs entry is created in /config/device-tree/overlays
++and and it is manipulated using standard file system I/O.
++Note that this is a debug level interface, for use by developers and
++not necessarily something accessed by normal users due to the
++security implications of having direct access to the kernel's device tree.
++
++* To create an overlay you mkdir the directory:
++
++	# mkdir /config/device-tree/overlays/foo
++
++* Either you echo the overlay firmware file to the path property file.
++
++	# echo foo.dtbo >/config/device-tree/overlays/foo/path
++
++* Or you cat the contents of the overlay to the dtbo file
++
++	# cat foo.dtbo >/config/device-tree/overlays/foo/dtbo
++
++The overlay file will be applied, and devices will be created/destroyed
++as required.
++
++To remove it simply rmdir the directory.
++
++	# rmdir /config/device-tree/overlays/foo
++
++The rationalle of the dual interface (firmware & direct copy) is that each is
++better suited to different use patterns. The firmware interface is what's
++intended to be used by hardware managers in the kernel, while the copy interface
++make sense for developers (since it avoids problems with namespaces).
+--- a/drivers/of/Kconfig
++++ b/drivers/of/Kconfig
+@@ -100,4 +100,11 @@ config OF_DMA_DEFAULT_COHERENT
+ 	# arches should select this if DMA is coherent by default for OF devices
+ 	bool
+ 
++config OF_CONFIGFS
++	bool "Device Tree Overlay ConfigFS interface"
++	select CONFIGFS_FS
++	select OF_OVERLAY
++	help
++	  Enable a simple user-space driven DT overlay interface.
++
+ endif # OF
+--- a/drivers/of/Makefile
++++ b/drivers/of/Makefile
+@@ -1,6 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ obj-y = base.o device.o platform.o property.o
+ obj-$(CONFIG_OF_KOBJ) += kobj.o
++obj-$(CONFIG_OF_CONFIGFS) += configfs.o
+ obj-$(CONFIG_OF_DYNAMIC) += dynamic.o
+ obj-$(CONFIG_OF_FLATTREE) += fdt.o
+ obj-$(CONFIG_OF_EARLY_FLATTREE) += fdt_address.o
+--- /dev/null
++++ b/drivers/of/configfs.c
+@@ -0,0 +1,310 @@
++/*
++ * Configfs entries for device-tree
++ *
++ * Copyright (C) 2013 - Pantelis Antoniou <panto@antoniou-consulting.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++#include <linux/ctype.h>
++#include <linux/cpu.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/of_fdt.h>
++#include <linux/spinlock.h>
++#include <linux/slab.h>
++#include <linux/proc_fs.h>
++#include <linux/configfs.h>
++#include <linux/types.h>
++#include <linux/stat.h>
++#include <linux/limits.h>
++#include <linux/file.h>
++#include <linux/vmalloc.h>
++#include <linux/firmware.h>
++#include <linux/sizes.h>
++
++#include "of_private.h"
++
++struct cfs_overlay_item {
++	struct config_item	item;
++
++	char			path[PATH_MAX];
++
++	const struct firmware	*fw;
++	struct device_node	*overlay;
++	int			ov_id;
++
++	void			*dtbo;
++	int			dtbo_size;
++};
++
++static int create_overlay(struct cfs_overlay_item *overlay, void *blob)
++{
++	int err;
++
++	/* unflatten the tree */
++	of_fdt_unflatten_tree(blob, NULL, &overlay->overlay);
++	if (overlay->overlay == NULL) {
++		pr_err("%s: failed to unflatten tree\n", __func__);
++		err = -EINVAL;
++		goto out_err;
++	}
++	pr_debug("%s: unflattened OK\n", __func__);
++
++	/* mark it as detached */
++	of_node_set_flag(overlay->overlay, OF_DETACHED);
++
++	/* perform resolution */
++	err = of_resolve_phandles(overlay->overlay);
++	if (err != 0) {
++		pr_err("%s: Failed to resolve tree\n", __func__);
++		goto out_err;
++	}
++	pr_debug("%s: resolved OK\n", __func__);
++
++	err = of_overlay_apply(overlay->overlay, &overlay->ov_id);
++	if (err < 0) {
++		pr_err("%s: Failed to create overlay (err=%d)\n",
++				__func__, err);
++		goto out_err;
++	}
++
++out_err:
++	return err;
++}
++
++static inline struct cfs_overlay_item *to_cfs_overlay_item(
++		struct config_item *item)
++{
++	return item ? container_of(item, struct cfs_overlay_item, item) : NULL;
++}
++
++static ssize_t cfs_overlay_item_path_show(struct config_item *item,
++		char *page)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++	return sprintf(page, "%s\n", overlay->path);
++}
++
++static ssize_t cfs_overlay_item_path_store(struct config_item *item,
++		const char *page, size_t count)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++	const char *p = page;
++	char *s;
++	int err;
++
++	/* if it's set do not allow changes */
++	if (overlay->path[0] != '\0' || overlay->dtbo_size > 0)
++		return -EPERM;
++
++	/* copy to path buffer (and make sure it's always zero terminated */
++	count = snprintf(overlay->path, sizeof(overlay->path) - 1, "%s", p);
++	overlay->path[sizeof(overlay->path) - 1] = '\0';
++
++	/* strip trailing newlines */
++	s = overlay->path + strlen(overlay->path);
++	while (s > overlay->path && *--s == '\n')
++		*s = '\0';
++
++	pr_debug("%s: path is '%s'\n", __func__, overlay->path);
++
++	err = request_firmware(&overlay->fw, overlay->path, NULL);
++	if (err != 0)
++		goto out_err;
++
++	err = create_overlay(overlay, (void *)overlay->fw->data);
++	if (err != 0)
++		goto out_err;
++
++	return count;
++
++out_err:
++
++	release_firmware(overlay->fw);
++	overlay->fw = NULL;
++
++	overlay->path[0] = '\0';
++	return err;
++}
++
++static ssize_t cfs_overlay_item_status_show(struct config_item *item,
++		char *page)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++
++	return sprintf(page, "%s\n",
++			overlay->ov_id >= 0 ? "applied" : "unapplied");
++}
++
++CONFIGFS_ATTR(cfs_overlay_item_, path);
++CONFIGFS_ATTR_RO(cfs_overlay_item_, status);
++
++static struct configfs_attribute *cfs_overlay_attrs[] = {
++	&cfs_overlay_item_attr_path,
++	&cfs_overlay_item_attr_status,
++	NULL,
++};
++
++ssize_t cfs_overlay_item_dtbo_read(struct config_item *item,
++		void *buf, size_t max_count)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++
++	pr_debug("%s: buf=%p max_count=%zu\n", __func__,
++			buf, max_count);
++
++	if (overlay->dtbo == NULL)
++		return 0;
++
++	/* copy if buffer provided */
++	if (buf != NULL) {
++		/* the buffer must be large enough */
++		if (overlay->dtbo_size > max_count)
++			return -ENOSPC;
++
++		memcpy(buf, overlay->dtbo, overlay->dtbo_size);
++	}
++
++	return overlay->dtbo_size;
++}
++
++ssize_t cfs_overlay_item_dtbo_write(struct config_item *item,
++		const void *buf, size_t count)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++	int err;
++
++	/* if it's set do not allow changes */
++	if (overlay->path[0] != '\0' || overlay->dtbo_size > 0)
++		return -EPERM;
++
++	/* copy the contents */
++	overlay->dtbo = kmemdup(buf, count, GFP_KERNEL);
++	if (overlay->dtbo == NULL)
++		return -ENOMEM;
++
++	overlay->dtbo_size = count;
++
++	err = create_overlay(overlay, overlay->dtbo);
++	if (err != 0)
++		goto out_err;
++
++	return count;
++
++out_err:
++	kfree(overlay->dtbo);
++	overlay->dtbo = NULL;
++	overlay->dtbo_size = 0;
++
++	return err;
++}
++
++CONFIGFS_BIN_ATTR(cfs_overlay_item_, dtbo, NULL, SZ_1M);
++
++static struct configfs_bin_attribute *cfs_overlay_bin_attrs[] = {
++	&cfs_overlay_item_attr_dtbo,
++	NULL,
++};
++
++static void cfs_overlay_release(struct config_item *item)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++
++	if (overlay->ov_id >= 0)
++		of_overlay_remove(&overlay->ov_id);
++	if (overlay->fw)
++		release_firmware(overlay->fw);
++	/* kfree with NULL is safe */
++	kfree(overlay->dtbo);
++	kfree(overlay);
++}
++
++static struct configfs_item_operations cfs_overlay_item_ops = {
++	.release	= cfs_overlay_release,
++};
++
++static struct config_item_type cfs_overlay_type = {
++	.ct_item_ops	= &cfs_overlay_item_ops,
++	.ct_attrs	= cfs_overlay_attrs,
++	.ct_bin_attrs	= cfs_overlay_bin_attrs,
++	.ct_owner	= THIS_MODULE,
++};
++
++static struct config_item *cfs_overlay_group_make_item(
++		struct config_group *group, const char *name)
++{
++	struct cfs_overlay_item *overlay;
++
++	overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
++	if (!overlay)
++		return ERR_PTR(-ENOMEM);
++	overlay->ov_id = -1;
++
++	config_item_init_type_name(&overlay->item, name, &cfs_overlay_type);
++	return &overlay->item;
++}
++
++static void cfs_overlay_group_drop_item(struct config_group *group,
++		struct config_item *item)
++{
++	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
++
++	config_item_put(&overlay->item);
++}
++
++static struct configfs_group_operations overlays_ops = {
++	.make_item	= cfs_overlay_group_make_item,
++	.drop_item	= cfs_overlay_group_drop_item,
++};
++
++static struct config_item_type overlays_type = {
++	.ct_group_ops   = &overlays_ops,
++	.ct_owner       = THIS_MODULE,
++};
++
++static struct configfs_group_operations of_cfs_ops = {
++	/* empty - we don't allow anything to be created */
++};
++
++static struct config_item_type of_cfs_type = {
++	.ct_group_ops   = &of_cfs_ops,
++	.ct_owner       = THIS_MODULE,
++};
++
++struct config_group of_cfs_overlay_group;
++
++static struct configfs_subsystem of_cfs_subsys = {
++	.su_group = {
++		.cg_item = {
++			.ci_namebuf = "device-tree",
++			.ci_type = &of_cfs_type,
++		},
++	},
++	.su_mutex = __MUTEX_INITIALIZER(of_cfs_subsys.su_mutex),
++};
++
++static int __init of_cfs_init(void)
++{
++	int ret;
++
++	pr_info("%s\n", __func__);
++
++	config_group_init(&of_cfs_subsys.su_group);
++	config_group_init_type_name(&of_cfs_overlay_group, "overlays",
++			&overlays_type);
++	configfs_add_default_group(&of_cfs_overlay_group,
++			&of_cfs_subsys.su_group);
++
++	ret = configfs_register_subsystem(&of_cfs_subsys);
++	if (ret != 0) {
++		pr_err("%s: failed to register subsys\n", __func__);
++		goto out;
++	}
++	pr_info("%s: OK\n", __func__);
++out:
++	return ret;
++}
++late_initcall(of_cfs_init);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0065-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch b/target/linux/bcm27xx/patches-5.10/950-0065-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch
new file mode 100644
index 0000000000..495911c664
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0065-hci_h5-Don-t-send-conf_req-when-ACTIVE.patch
@@ -0,0 +1,23 @@
+From 32fe7cc286f4a4d7f5d623ddb9fba10907c2abea Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 17 Dec 2015 13:37:07 +0000
+Subject: [PATCH] hci_h5: Don't send conf_req when ACTIVE
+
+Without this patch, a modem and kernel can continuously bombard each
+other with conf_req and conf_rsp messages, in a demented game of tag.
+---
+ drivers/bluetooth/hci_h5.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/bluetooth/hci_h5.c
++++ b/drivers/bluetooth/hci_h5.c
+@@ -343,7 +343,8 @@ static void h5_handle_internal_rx(struct
+ 		h5_link_control(hu, conf_req, 3);
+ 	} else if (memcmp(data, conf_req, 2) == 0) {
+ 		h5_link_control(hu, conf_rsp, 2);
+-		h5_link_control(hu, conf_req, 3);
++		if (h5->state != H5_ACTIVE)
++		    h5_link_control(hu, conf_req, 3);
+ 	} else if (memcmp(data, conf_rsp, 2) == 0) {
+ 		if (H5_HDR_LEN(hdr) > 2)
+ 			h5->tx_win = (data[2] & 0x07);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0066-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch b/target/linux/bcm27xx/patches-5.10/950-0066-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
new file mode 100644
index 0000000000..51bc70aed5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0066-ARM64-Round-Robin-dispatch-IRQs-between-CPUs.patch
@@ -0,0 +1,72 @@
+From 443eb00795c4da76e3877ae7448697ba14584596 Mon Sep 17 00:00:00 2001
+From: Michael Zoran <mzoran@crowfest.net>
+Date: Sat, 14 Jan 2017 21:43:57 -0800
+Subject: [PATCH] ARM64: Round-Robin dispatch IRQs between CPUs.
+
+IRQ-CPU mapping is round robined on ARM64 to increase
+concurrency and allow multiple interrupts to be serviced
+at a time.  This reduces the need for FIQ.
+
+Signed-off-by: Michael Zoran <mzoran@crowfest.net>
+---
+ drivers/irqchip/irq-bcm2835.c | 15 ++++++++++++++-
+ drivers/irqchip/irq-bcm2836.c | 21 +++++++++++++++++++++
+ 2 files changed, 35 insertions(+), 1 deletion(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -154,10 +154,23 @@ static void armctrl_unmask_irq(struct ir
+ 	}
+ }
+ 
++#ifdef CONFIG_ARM64
++void bcm2836_arm_irqchip_spin_gpu_irq(void);
++
++static void armctrl_ack_irq(struct irq_data *d)
++{
++	bcm2836_arm_irqchip_spin_gpu_irq();
++}
++
++#endif
++
+ static struct irq_chip armctrl_chip = {
+ 	.name = "ARMCTRL-level",
+ 	.irq_mask = armctrl_mask_irq,
+-	.irq_unmask = armctrl_unmask_irq
++	.irq_unmask = armctrl_unmask_irq,
++#ifdef CONFIG_ARM64
++	.irq_ack    = armctrl_ack_irq
++#endif
+ };
+ 
+ static int armctrl_xlate(struct irq_domain *d, struct device_node *ctrlr,
+--- a/drivers/irqchip/irq-bcm2836.c
++++ b/drivers/irqchip/irq-bcm2836.c
+@@ -87,6 +87,27 @@ static void bcm2836_arm_irqchip_unmask_g
+ {
+ }
+ 
++#ifdef CONFIG_ARM64
++
++void bcm2836_arm_irqchip_spin_gpu_irq(void)
++{
++	u32 i;
++	void __iomem *gpurouting = (intc.base + LOCAL_GPU_ROUTING);
++	u32 routing_val = readl(gpurouting);
++
++	for (i = 1; i <= 3; i++) {
++		u32 new_routing_val = (routing_val + i) & 3;
++
++		if (cpu_active(new_routing_val)) {
++			writel(new_routing_val, gpurouting);
++			return;
++		}
++	}
++}
++EXPORT_SYMBOL(bcm2836_arm_irqchip_spin_gpu_irq);
++
++#endif
++
+ static struct irq_chip bcm2836_arm_irqchip_gpu = {
+ 	.name		= "bcm2836-gpu",
+ 	.irq_mask	= bcm2836_arm_irqchip_mask_gpu_irq,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0067-ARM64-Force-hardware-emulation-of-deprecated-instruc.patch b/target/linux/bcm27xx/patches-5.10/950-0067-ARM64-Force-hardware-emulation-of-deprecated-instruc.patch
new file mode 100644
index 0000000000..b3c37af92a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0067-ARM64-Force-hardware-emulation-of-deprecated-instruc.patch
@@ -0,0 +1,28 @@
+From b4e6e3b95c4f41b415d9d7fed7f121a1850af042 Mon Sep 17 00:00:00 2001
+From: Michael Zoran <mzoran@crowfest.net>
+Date: Sat, 11 Feb 2017 01:18:31 -0800
+Subject: [PATCH] ARM64: Force hardware emulation of deprecated
+ instructions.
+
+---
+ arch/arm64/kernel/armv8_deprecated.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/arch/arm64/kernel/armv8_deprecated.c
++++ b/arch/arm64/kernel/armv8_deprecated.c
+@@ -182,10 +182,15 @@ static void __init register_insn_emulati
+ 
+ 	switch (ops->status) {
+ 	case INSN_DEPRECATED:
++#if 0
+ 		insn->current_mode = INSN_EMULATE;
+ 		/* Disable the HW mode if it was turned on at early boot time */
+ 		run_all_cpu_set_hw_mode(insn, false);
++#else
++		insn->current_mode = INSN_HW;
++		run_all_cpu_set_hw_mode(insn, true);
+ 		insn->max = INSN_HW;
++#endif
+ 		break;
+ 	case INSN_OBSOLETE:
+ 		insn->current_mode = INSN_UNDEF;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0068-cache-export-clean-and-invalidate.patch b/target/linux/bcm27xx/patches-5.10/950-0068-cache-export-clean-and-invalidate.patch
new file mode 100644
index 0000000000..a468367f49
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0068-cache-export-clean-and-invalidate.patch
@@ -0,0 +1,53 @@
+From c9cb22efe558ee7fb1f30deb19dfe7b7bfe1f369 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Fri, 25 Aug 2017 19:18:13 +0100
+Subject: [PATCH] cache: export clean and invalidate
+
+hack: cache: Fix linker error
+---
+ arch/arm/mm/cache-v6.S | 4 ++--
+ arch/arm/mm/cache-v7.S | 6 ++++--
+ 2 files changed, 6 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/mm/cache-v6.S
++++ b/arch/arm/mm/cache-v6.S
+@@ -198,7 +198,7 @@ ENTRY(v6_flush_kern_dcache_area)
+  *	- start   - virtual start address of region
+  *	- end     - virtual end address of region
+  */
+-v6_dma_inv_range:
++ENTRY(v6_dma_inv_range)
+ #ifdef CONFIG_DMA_CACHE_RWFO
+ 	ldrb	r2, [r0]			@ read for ownership
+ 	strb	r2, [r0]			@ write for ownership
+@@ -243,7 +243,7 @@ v6_dma_inv_range:
+  *	- start   - virtual start address of region
+  *	- end     - virtual end address of region
+  */
+-v6_dma_clean_range:
++ENTRY(v6_dma_clean_range)
+ 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
+ 1:
+ #ifdef CONFIG_DMA_CACHE_RWFO
+--- a/arch/arm/mm/cache-v7.S
++++ b/arch/arm/mm/cache-v7.S
+@@ -363,7 +363,8 @@ ENDPROC(v7_flush_kern_dcache_area)
+  *	- start   - virtual start address of region
+  *	- end     - virtual end address of region
+  */
+-v7_dma_inv_range:
++ENTRY(b15_dma_inv_range)
++ENTRY(v7_dma_inv_range)
+ 	dcache_line_size r2, r3
+ 	sub	r3, r2, #1
+ 	tst	r0, r3
+@@ -393,7 +394,8 @@ ENDPROC(v7_dma_inv_range)
+  *	- start   - virtual start address of region
+  *	- end     - virtual end address of region
+  */
+-v7_dma_clean_range:
++ENTRY(b15_dma_clean_range)
++ENTRY(v7_dma_clean_range)
+ 	dcache_line_size r2, r3
+ 	sub	r3, r2, #1
+ 	bic	r0, r0, r3
diff --git a/target/linux/bcm27xx/patches-5.10/950-0069-AXI-performance-monitor-driver-2222.patch b/target/linux/bcm27xx/patches-5.10/950-0069-AXI-performance-monitor-driver-2222.patch
new file mode 100644
index 0000000000..3358be14a3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0069-AXI-performance-monitor-driver-2222.patch
@@ -0,0 +1,691 @@
+From d9151380fdab4a0f2abcc08d2c344b0eabe48ab9 Mon Sep 17 00:00:00 2001
+From: James Hughes <JamesH65@users.noreply.github.com>
+Date: Tue, 14 Nov 2017 15:13:15 +0000
+Subject: [PATCH] AXI performance monitor driver (#2222)
+
+Uses the debugfs I/F to provide access to the AXI
+bus performance monitors.
+
+Requires the new mailbox peripheral access for access
+to the VPU performance registers, system bus access
+is done using direct register reads.
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+
+raspberrypi_axi_monitor: suppress warning
+
+Suppress the following warning by casting the pointer to and uintptr_t
+before to u32:
+
+Signed-off-by: Matteo Croce <mcroce@redhat.com>
+---
+ drivers/perf/Kconfig                   |   8 +
+ drivers/perf/Makefile                  |   1 +
+ drivers/perf/raspberrypi_axi_monitor.c | 637 +++++++++++++++++++++++++
+ 3 files changed, 646 insertions(+)
+ create mode 100644 drivers/perf/raspberrypi_axi_monitor.c
+
+--- a/drivers/perf/Kconfig
++++ b/drivers/perf/Kconfig
+@@ -130,6 +130,14 @@ config ARM_SPE_PMU
+ 	  Extension, which provides periodic sampling of operations in
+ 	  the CPU pipeline and reports this via the perf AUX interface.
+ 
++config RPI_AXIPERF
++        depends on ARCH_BCM2835
++        tristate "RaspberryPi AXI Performance monitors"
++        default n
++        help
++          Say y if you want to use Raspberry Pi AXI performance monitors, m if
++          you want to build it as a module.
++
+ source "drivers/perf/hisilicon/Kconfig"
+ 
+ endmenu
+--- a/drivers/perf/Makefile
++++ b/drivers/perf/Makefile
+@@ -13,3 +13,4 @@ obj-$(CONFIG_QCOM_L3_PMU) += qcom_l3_pmu
+ obj-$(CONFIG_THUNDERX2_PMU) += thunderx2_pmu.o
+ obj-$(CONFIG_XGENE_PMU) += xgene_pmu.o
+ obj-$(CONFIG_ARM_SPE_PMU) += arm_spe_pmu.o
++obj-$(CONFIG_RPI_AXIPERF) += raspberrypi_axi_monitor.o
+--- /dev/null
++++ b/drivers/perf/raspberrypi_axi_monitor.c
+@@ -0,0 +1,637 @@
++/*
++ * raspberrypi_axi_monitor.c
++ *
++ * Author: james.hughes@raspberrypi.org
++ *
++ * Raspberry Pi AXI performance counters.
++ *
++ * Copyright (C) 2017 Raspberry Pi Trading Ltd.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/debugfs.h>
++#include <linux/devcoredump.h>
++#include <linux/device.h>
++#include <linux/kthread.h>
++#include <linux/module.h>
++#include <linux/netdevice.h>
++#include <linux/mutex.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define NUM_MONITORS 2
++#define NUM_BUS_WATCHERS_PER_MONITOR 3
++
++#define SYSTEM_MONITOR 0
++#define VPU_MONITOR 1
++
++#define MAX_BUSES 16
++#define DEFAULT_SAMPLE_TIME 100
++
++#define NUM_BUS_WATCHER_RESULTS 9
++
++struct bus_watcher_data {
++	union	{
++		u32 results[NUM_BUS_WATCHER_RESULTS];
++		struct {
++			u32 atrans;
++			u32 atwait;
++			u32 amax;
++			u32 wtrans;
++			u32 wtwait;
++			u32 wmax;
++			u32 rtrans;
++			u32 rtwait;
++			u32 rmax;
++		};
++	};
++};
++
++
++struct rpi_axiperf {
++	struct platform_device *dev;
++	struct dentry *root_folder;
++
++	struct task_struct *monitor_thread;
++	struct mutex lock;
++
++	struct rpi_firmware *firmware;
++
++	/* Sample time spent on for each bus */
++	int sample_time;
++
++	/* Now storage for the per monitor settings and the resulting
++	 * performance figures
++	 */
++	struct {
++		/* Bit field of buses we want to monitor */
++		int bus_enabled;
++		/* Bit field of buses to filter by */
++		int bus_filter;
++		/* The current buses being monitored on this monitor */
++		int current_bus[NUM_BUS_WATCHERS_PER_MONITOR];
++		/* The last bus monitored on this monitor */
++		int last_monitored;
++
++		/* Set true if this mailbox must use the mailbox interface
++		 * rather than access registers directly.
++		 */
++		int use_mailbox_interface;
++
++		/* Current result values */
++		struct bus_watcher_data results[MAX_BUSES];
++
++		struct dentry *debugfs_entry;
++		void __iomem *base_address;
++
++	}  monitor[NUM_MONITORS];
++
++};
++
++static struct rpi_axiperf *state;
++
++/* Two monitors, System and VPU, each with the following register sets.
++ * Each monitor can only monitor one bus at a time, so we time share them,
++ * giving each bus 100ms (default, settable via debugfs) of time on its
++ * associated monitor
++ * Record results from the three Bus watchers per monitor and push to the sysfs
++ */
++
++/* general registers */
++const int GEN_CTRL;
++
++const int GEN_CTL_ENABLE_BIT	= BIT(0);
++const int GEN_CTL_RESET_BIT	= BIT(1);
++
++/* Bus watcher registers */
++const int BW_PITCH		= 0x40;
++
++const int BW0_CTRL		= 0x40;
++const int BW1_CTRL		= 0x80;
++const int BW2_CTRL		= 0xc0;
++
++const int BW_ATRANS_OFFSET	= 0x04;
++const int BW_ATWAIT_OFFSET	= 0x08;
++const int BW_AMAX_OFFSET	= 0x0c;
++const int BW_WTRANS_OFFSET	= 0x10;
++const int BW_WTWAIT_OFFSET	= 0x14;
++const int BW_WMAX_OFFSET	= 0x18;
++const int BW_RTRANS_OFFSET	= 0x1c;
++const int BW_RTWAIT_OFFSET	= 0x20;
++const int BW_RMAX_OFFSET	= 0x24;
++
++const int BW_CTRL_RESET_BIT	= BIT(31);
++const int BW_CTRL_ENABLE_BIT	= BIT(30);
++const int BW_CTRL_ENABLE_ID_FILTER_BIT	= BIT(29);
++const int BW_CTRL_LIMIT_HALT_BIT	= BIT(28);
++
++const int BW_CTRL_SOURCE_SHIFT	= 8;
++const int BW_CTRL_SOURCE_MASK	= GENMASK(12, 8); // 5 bits
++const int BW_CTRL_BUS_WATCH_SHIFT;
++const int BW_CTRL_BUS_WATCH_MASK = GENMASK(5, 0); // 6 bits
++const int BW_CTRL_BUS_FILTER_SHIFT = 8;
++
++const static char *bus_filter_strings[] = {
++	"",
++	"CORE0_V",
++	"ICACHE0",
++	"DCACHE0",
++	"CORE1_V",
++	"ICACHE1",
++	"DCACHE1",
++	"L2_MAIN",
++	"HOST_PORT",
++	"HOST_PORT2",
++	"HVS",
++	"ISP",
++	"VIDEO_DCT",
++	"VIDEO_SD2AXI",
++	"CAM0",
++	"CAM1",
++	"DMA0",
++	"DMA1",
++	"DMA2_VPU",
++	"JPEG",
++	"VIDEO_CME",
++	"TRANSPOSER",
++	"VIDEO_FME",
++	"CCP2TX",
++	"USB",
++	"V3D0",
++	"V3D1",
++	"V3D2",
++	"AVE",
++	"DEBUG",
++	"CPU",
++	"M30"
++};
++
++const int num_bus_filters = ARRAY_SIZE(bus_filter_strings);
++
++const static char *system_bus_string[] = {
++	"DMA_L2",
++	"TRANS",
++	"JPEG",
++	"SYSTEM_UC",
++	"DMA_UC",
++	"SYSTEM_L2",
++	"CCP2TX",
++	"MPHI_RX",
++	"MPHI_TX",
++	"HVS",
++	"H264",
++	"ISP",
++	"V3D",
++	"PERIPHERAL",
++	"CPU_UC",
++	"CPU_L2"
++};
++
++const int num_system_buses = ARRAY_SIZE(system_bus_string);
++
++const static char *vpu_bus_string[] = {
++	"VPU1_D_L2",
++	"VPU0_D_L2",
++	"VPU1_I_L2",
++	"VPU0_I_L2",
++	"SYSTEM_L2",
++	"L2_FLUSH",
++	"DMA_L2",
++	"VPU1_D_UC",
++	"VPU0_D_UC",
++	"VPU1_I_UC",
++	"VPU0_I_UC",
++	"SYSTEM_UC",
++	"L2_OUT",
++	"DMA_UC",
++	"SDRAM",
++	"L2_IN"
++};
++
++const int num_vpu_buses = ARRAY_SIZE(vpu_bus_string);
++
++const static char *monitor_name[] = {
++	"System",
++	"VPU"
++};
++
++static inline void write_reg(int monitor, int reg, u32 value)
++{
++	writel(value, state->monitor[monitor].base_address + reg);
++}
++
++static inline u32 read_reg(int monitor, u32 reg)
++{
++	return readl(state->monitor[monitor].base_address + reg);
++}
++
++static void read_bus_watcher(int monitor, int watcher, u32 *results)
++{
++	if (state->monitor[monitor].use_mailbox_interface) {
++		/* We have 9 results, plus the overheads of start address and
++		 * length So 11 u32 to define
++		 */
++		u32 tmp[11];
++		int err;
++
++		tmp[0] = (u32)(uintptr_t)(state->monitor[monitor].base_address + watcher
++				+ BW_ATRANS_OFFSET);
++		tmp[1] = NUM_BUS_WATCHER_RESULTS;
++
++		err = rpi_firmware_property(state->firmware,
++					    RPI_FIRMWARE_GET_PERIPH_REG,
++					    tmp, sizeof(tmp));
++
++		if (err < 0 || tmp[1] != NUM_BUS_WATCHER_RESULTS)
++			dev_err_once(&state->dev->dev,
++				     "Failed to read bus watcher");
++		else
++			memcpy(results, &tmp[2],
++			       NUM_BUS_WATCHER_RESULTS * sizeof(u32));
++	} else {
++		int i;
++		void __iomem *addr = state->monitor[monitor].base_address
++				+ watcher + BW_ATRANS_OFFSET;
++		for (i = 0; i < NUM_BUS_WATCHER_RESULTS; i++, addr += 4)
++			*results++ = readl(addr);
++	}
++}
++
++static void set_monitor_control(int monitor, u32 set)
++{
++	if (state->monitor[monitor].use_mailbox_interface) {
++		u32 tmp[3] = {(u32)(uintptr_t)(state->monitor[monitor].base_address +
++				GEN_CTRL), 1, set};
++		int err = rpi_firmware_property(state->firmware,
++						RPI_FIRMWARE_SET_PERIPH_REG,
++						tmp, sizeof(tmp));
++
++		if (err < 0 || tmp[1] != 1)
++			dev_err_once(&state->dev->dev,
++				"Failed to set monitor control");
++	} else
++		write_reg(monitor, GEN_CTRL, set);
++}
++
++static void set_bus_watcher_control(int monitor, int watcher, u32 set)
++{
++	if (state->monitor[monitor].use_mailbox_interface) {
++		u32 tmp[3] = {(u32)(uintptr_t)(state->monitor[monitor].base_address +
++				    watcher), 1, set};
++		int err = rpi_firmware_property(state->firmware,
++						RPI_FIRMWARE_SET_PERIPH_REG,
++						tmp, sizeof(tmp));
++		if (err < 0 || tmp[1] != 1)
++			dev_err_once(&state->dev->dev,
++				"Failed to set bus watcher control");
++	} else
++		write_reg(monitor, watcher, set);
++}
++
++static void monitor(struct rpi_axiperf *state)
++{
++	int monitor, num_buses[NUM_MONITORS];
++
++	mutex_lock(&state->lock);
++
++	for (monitor = 0; monitor < NUM_MONITORS; monitor++) {
++		typeof(state->monitor[0]) *mon = &(state->monitor[monitor]);
++
++		/* Anything enabled? */
++		if (mon->bus_enabled == 0) {
++			/* No, disable all monitoring for this monitor */
++			set_monitor_control(monitor, GEN_CTL_RESET_BIT);
++		} else {
++			int i;
++
++			/* Find out how many busses we want to monitor, and
++			 * spread our 3 actual monitors over them
++			 */
++			num_buses[monitor] = hweight32(mon->bus_enabled);
++			num_buses[monitor] = min(num_buses[monitor],
++						 NUM_BUS_WATCHERS_PER_MONITOR);
++
++			for (i = 0; i < num_buses[monitor]; i++) {
++				int bus_control;
++
++				do {
++					mon->last_monitored++;
++					mon->last_monitored &= 0xf;
++				} while ((mon->bus_enabled &
++					 (1 << mon->last_monitored)) == 0);
++
++				mon->current_bus[i] = mon->last_monitored;
++
++				/* Reset the counters */
++				set_bus_watcher_control(monitor,
++							BW0_CTRL +
++							i*BW_PITCH,
++							BW_CTRL_RESET_BIT);
++
++				bus_control = BW_CTRL_ENABLE_BIT |
++						mon->current_bus[i];
++
++				if (mon->bus_filter) {
++					bus_control |=
++						BW_CTRL_ENABLE_ID_FILTER_BIT;
++					bus_control |=
++						((mon->bus_filter & 0x1f)
++						<< BW_CTRL_BUS_FILTER_SHIFT);
++				}
++
++				// Start capture
++				set_bus_watcher_control(monitor,
++							BW0_CTRL + i*BW_PITCH,
++							bus_control);
++			}
++		}
++
++		/* start monitoring */
++		set_monitor_control(monitor, GEN_CTL_ENABLE_BIT);
++	}
++
++	mutex_unlock(&state->lock);
++
++	msleep(state->sample_time);
++
++	/* Now read the results */
++
++	mutex_lock(&state->lock);
++	for (monitor = 0; monitor < NUM_MONITORS; monitor++) {
++		typeof(state->monitor[0]) *mon = &(state->monitor[monitor]);
++
++		/* Anything enabled? */
++		if (mon->bus_enabled == 0) {
++			/* No, disable all monitoring for this monitor */
++			set_monitor_control(monitor, 0);
++		} else {
++			int i;
++
++			for (i = 0; i < num_buses[monitor]; i++) {
++				int bus = mon->current_bus[i];
++
++				read_bus_watcher(monitor,
++					BW0_CTRL + i*BW_PITCH,
++					(u32 *)&mon->results[bus].results);
++			}
++		}
++	}
++	mutex_unlock(&state->lock);
++}
++
++static int monitor_thread(void *data)
++{
++	struct rpi_axiperf *state  = data;
++
++	while (1) {
++		monitor(state);
++
++		if (kthread_should_stop())
++			return 0;
++	}
++	return 0;
++}
++
++static ssize_t myreader(struct file *fp, char __user *user_buffer,
++			size_t count, loff_t *position)
++{
++#define INIT_BUFF_SIZE 2048
++
++	int i;
++	int idx = (int)(uintptr_t)(fp->private_data);
++	int num_buses, cnt;
++	char *string_buffer;
++	int buff_size = INIT_BUFF_SIZE;
++	char *p;
++	typeof(state->monitor[0]) *mon = &(state->monitor[idx]);
++
++	if (idx < 0 || idx > NUM_MONITORS)
++		idx = 0;
++
++	num_buses = idx == SYSTEM_MONITOR ? num_system_buses : num_vpu_buses;
++
++	string_buffer = kmalloc(buff_size, GFP_KERNEL);
++
++	if (!string_buffer) {
++		dev_err(&state->dev->dev,
++				"Failed temporary string allocation\n");
++		return 0;
++	}
++
++	p = string_buffer;
++
++	mutex_lock(&state->lock);
++
++	if (mon->bus_filter) {
++		int filt = min(mon->bus_filter & 0x1f, num_bus_filters);
++
++		cnt = snprintf(p, buff_size,
++			       "\nMonitoring transactions from %s only\n",
++			       bus_filter_strings[filt]);
++		p += cnt;
++		buff_size -= cnt;
++	}
++
++	cnt = snprintf(p, buff_size, "     Bus   |    Atrans    Atwait      AMax    Wtrans    Wtwait      WMax    Rtrans    Rtwait      RMax\n"
++				     "======================================================================================================\n");
++
++	if (cnt >= buff_size)
++		goto done;
++
++	p += cnt;
++	buff_size -= cnt;
++
++	for (i = 0; i < num_buses; i++) {
++		if (mon->bus_enabled & (1 << i)) {
++#define DIVIDER (1024)
++			typeof(mon->results[0]) *res = &(mon->results[i]);
++
++			cnt = snprintf(p, buff_size,
++					"%10s | %8uK %8uK %8uK %8uK %8uK %8uK %8uK %8uK %8uK\n",
++					idx == SYSTEM_MONITOR ?
++						system_bus_string[i] :
++						vpu_bus_string[i],
++					res->atrans/DIVIDER,
++					res->atwait/DIVIDER,
++					res->amax/DIVIDER,
++					res->wtrans/DIVIDER,
++					res->wtwait/DIVIDER,
++					res->wmax/DIVIDER,
++					res->rtrans/DIVIDER,
++					res->rtwait/DIVIDER,
++					res->rmax/DIVIDER
++					);
++			if (cnt >= buff_size)
++				goto done;
++
++			p += cnt;
++			buff_size -= cnt;
++		}
++	}
++
++	mutex_unlock(&state->lock);
++
++done:
++
++	/* did the last string entry exceeed our buffer size? ie out of string
++	 * buffer space. Null terminate, use what we have.
++	 */
++	if (cnt >= buff_size) {
++		buff_size = 0;
++		string_buffer[INIT_BUFF_SIZE] = 0;
++	}
++
++	cnt = simple_read_from_buffer(user_buffer, count, position,
++				      string_buffer,
++				      INIT_BUFF_SIZE - buff_size);
++
++	kfree(string_buffer);
++
++	return cnt;
++}
++
++static ssize_t mywriter(struct file *fp, const char __user *user_buffer,
++			size_t count, loff_t *position)
++{
++	int idx = (int)(uintptr_t)(fp->private_data);
++
++	if (idx < 0 || idx > NUM_MONITORS)
++		idx = 0;
++
++	/* At the moment, this does nothing, but in the future it could be
++	 * used to reset counters etc
++	 */
++	return count;
++}
++
++static const struct file_operations fops_debug = {
++	.read = myreader,
++	.write = mywriter,
++	.open = simple_open
++};
++
++static int rpi_axiperf_probe(struct platform_device *pdev)
++{
++	int ret = 0, i;
++	struct device *dev = &pdev->dev;
++	struct device_node *np = dev->of_node;
++	struct device_node *fw_node;
++
++	state = kzalloc(sizeof(struct rpi_axiperf), GFP_KERNEL);
++	if (!state)
++		return -ENOMEM;
++
++	/* Get the firmware handle for future rpi-firmware-xxx calls */
++	fw_node = of_parse_phandle(np, "firmware", 0);
++	if (!fw_node) {
++		dev_err(dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	state->firmware = rpi_firmware_get(fw_node);
++	if (!state->firmware)
++		return -EPROBE_DEFER;
++
++	/* Special case for the VPU monitor, we must use the mailbox interface
++	 * as it is not accessible from the ARM address space.
++	 */
++	state->monitor[VPU_MONITOR].use_mailbox_interface = 1;
++	state->monitor[SYSTEM_MONITOR].use_mailbox_interface = 0;
++
++	for (i = 0; i < NUM_MONITORS; i++) {
++		if (state->monitor[i].use_mailbox_interface) {
++			 of_property_read_u32_index(np, "reg", i*2,
++				(u32 *)(&state->monitor[i].base_address));
++		} else {
++			struct resource *resource =
++				platform_get_resource(pdev, IORESOURCE_MEM, i);
++
++			state->monitor[i].base_address =
++				devm_ioremap_resource(&pdev->dev, resource);
++		}
++
++		if (IS_ERR(state->monitor[i].base_address))
++			return PTR_ERR(state->monitor[i].base_address);
++
++		/* Enable all buses by default */
++		state->monitor[i].bus_enabled = 0xffff;
++	}
++
++	state->dev = pdev;
++	platform_set_drvdata(pdev, state);
++
++	state->sample_time = DEFAULT_SAMPLE_TIME;
++
++	/* Set up all the debugfs stuff */
++	state->root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
++
++	for (i = 0; i < NUM_MONITORS; i++) {
++		state->monitor[i].debugfs_entry =
++			debugfs_create_dir(monitor_name[i], state->root_folder);
++		if (IS_ERR(state->monitor[i].debugfs_entry))
++			state->monitor[i].debugfs_entry = NULL;
++
++		debugfs_create_file("data", 0444,
++				    state->monitor[i].debugfs_entry,
++				    (void *)(uintptr_t)i, &fops_debug);
++		debugfs_create_u32("enable", 0644,
++				   state->monitor[i].debugfs_entry,
++				   &state->monitor[i].bus_enabled);
++		debugfs_create_u32("filter", 0644,
++				   state->monitor[i].debugfs_entry,
++				   &state->monitor[i].bus_filter);
++		debugfs_create_u32("sample_time", 0644,
++				   state->monitor[i].debugfs_entry,
++				   &state->sample_time);
++	}
++
++	mutex_init(&state->lock);
++
++	state->monitor_thread = kthread_run(monitor_thread, state,
++					    "rpi-axiperfmon");
++
++	return ret;
++
++}
++
++static int rpi_axiperf_remove(struct platform_device *dev)
++{
++	int ret = 0;
++
++	kthread_stop(state->monitor_thread);
++
++	debugfs_remove_recursive(state->root_folder);
++	state->root_folder = NULL;
++
++	return ret;
++}
++
++static const struct of_device_id rpi_axiperf_match[] = {
++	{
++		.compatible = "brcm,bcm2835-axiperf",
++	},
++	{},
++};
++MODULE_DEVICE_TABLE(of, rpi_axiperf_match);
++
++static struct platform_driver rpi_axiperf_driver  = {
++	.probe =	rpi_axiperf_probe,
++	.remove =	rpi_axiperf_remove,
++	.driver = {
++		.name   = "rpi-bcm2835-axiperf",
++		.of_match_table = of_match_ptr(rpi_axiperf_match),
++	},
++};
++
++module_platform_driver(rpi_axiperf_driver);
++
++/* Module information */
++MODULE_AUTHOR("James Hughes <james.hughes@raspberrypi.org>");
++MODULE_DESCRIPTION("RPI AXI Performance monitor driver");
++MODULE_LICENSE("GPL");
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0070-ARM-bcm2835-Set-Serial-number-and-Revision.patch b/target/linux/bcm27xx/patches-5.10/950-0070-ARM-bcm2835-Set-Serial-number-and-Revision.patch
new file mode 100644
index 0000000000..7ce4c48f65
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0070-ARM-bcm2835-Set-Serial-number-and-Revision.patch
@@ -0,0 +1,63 @@
+From 65565784e5faad0af487d54f3f92d9d4c9c38e4a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Wed, 3 Jun 2015 12:26:13 +0200
+Subject: [PATCH] ARM: bcm2835: Set Serial number and Revision
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The VideoCore bootloader passes in Serial number and
+Revision number through Device Tree. Make these available to
+userspace through /proc/cpuinfo.
+
+Mainline status:
+
+There is a commit in linux-next that standardize passing the serial
+number through Device Tree (string: /serial-number):
+ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo
+
+There was an attempt to do the same with the revision number, but it
+didn't get in:
+[PATCH v2 1/2] arm: devtree: Set system_rev from DT revision
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -6,12 +6,25 @@
+ #include <linux/init.h>
+ #include <linux/irqchip.h>
+ #include <linux/of_address.h>
++#include <asm/system_info.h>
+ 
+ #include <asm/mach/arch.h>
+ #include <asm/mach/map.h>
+ 
+ #include "platsmp.h"
+ 
++static void __init bcm2835_init(void)
++{
++	struct device_node *np = of_find_node_by_path("/system");
++	u32 val;
++	u64 val64;
++
++	if (!of_property_read_u32(np, "linux,revision", &val))
++		system_rev = val;
++	if (!of_property_read_u64(np, "linux,serial", &val64))
++		system_serial_low = val64;
++}
++
+ static const char * const bcm2835_compat[] = {
+ #ifdef CONFIG_ARCH_MULTI_V6
+ 	"brcm,bcm2835",
+@@ -24,6 +37,7 @@ static const char * const bcm2835_compat
+ };
+ 
+ DT_MACHINE_START(BCM2835, "BCM2835")
++	.init_machine = bcm2835_init,
+ 	.dt_compat = bcm2835_compat,
+ 	.smp = smp_ops(bcm2836_smp_ops),
+ MACHINE_END
diff --git a/target/linux/bcm27xx/patches-5.10/950-0071-dwc-otg-FIQ-Fix-bad-mode-in-data-abort-handler.patch b/target/linux/bcm27xx/patches-5.10/950-0071-dwc-otg-FIQ-Fix-bad-mode-in-data-abort-handler.patch
new file mode 100644
index 0000000000..b93a62d4fb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0071-dwc-otg-FIQ-Fix-bad-mode-in-data-abort-handler.patch
@@ -0,0 +1,116 @@
+From 347167bd9ac2a68870064edd921f2525bd569c6d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 16 Jul 2018 14:40:13 +0100
+Subject: [PATCH] dwc-otg: FIQ: Fix "bad mode in data abort handler"
+
+Create a semi-static mapping for the USB registers early in the boot
+process, before additional kernel threads are started, so all threads
+will have the mappings from the start. This avoids the need for
+data aborts to lazily update them.
+
+See: https://github.com/raspberrypi/linux/issues/2450
+
+Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 69 +++++++++++++++++++++++++++++++
+ 1 file changed, 69 insertions(+)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -6,6 +6,7 @@
+ #include <linux/init.h>
+ #include <linux/irqchip.h>
+ #include <linux/of_address.h>
++#include <linux/of_fdt.h>
+ #include <asm/system_info.h>
+ 
+ #include <asm/mach/arch.h>
+@@ -13,6 +14,9 @@
+ 
+ #include "platsmp.h"
+ 
++#define BCM2835_USB_VIRT_BASE   0xf0980000
++#define BCM2835_USB_VIRT_MPHI   0xf0006000
++
+ static void __init bcm2835_init(void)
+ {
+ 	struct device_node *np = of_find_node_by_path("/system");
+@@ -25,6 +29,70 @@ static void __init bcm2835_init(void)
+ 		system_serial_low = val64;
+ }
+ 
++/*
++ * We need to map registers that are going to be accessed by the FIQ
++ * very early, before any kernel threads are spawned. Because if done
++ * later, the mapping tables are not updated instantly but lazily upon
++ * first access through a data abort handler. While that is fine
++ * when executing regular kernel code, if the first access in a specific
++ * thread happens while running FIQ code this will result in a panic.
++ *
++ * For more background see the following old mailing list thread:
++ * https://www.spinics.net/lists/arm-kernel/msg325250.html
++ */
++static int __init bcm2835_map_usb(unsigned long node, const char *uname,
++					int depth, void *data)
++{
++	struct map_desc map[2];
++	const __be32 *reg;
++	int len;
++	unsigned long p2b_offset = *((unsigned long *) data);
++
++	if (!of_flat_dt_is_compatible(node, "brcm,bcm2708-usb"))
++		return 0;
++	reg = of_get_flat_dt_prop(node, "reg", &len);
++	if (!reg || len != (sizeof(unsigned long) * 4))
++		return 0;
++
++	/* Use information about the physical addresses of the
++	 * registers from the device tree, but use legacy
++	 * iotable_init() static mapping function to map them,
++	 * as ioremap() is not functional at this stage in boot.
++	 */
++	map[0].virtual = (unsigned long) BCM2835_USB_VIRT_BASE;
++	map[0].pfn = __phys_to_pfn(be32_to_cpu(reg[0]) - p2b_offset);
++	map[0].length = be32_to_cpu(reg[1]);
++	map[0].type = MT_DEVICE;
++	map[1].virtual = (unsigned long) BCM2835_USB_VIRT_MPHI;
++	map[1].pfn = __phys_to_pfn(be32_to_cpu(reg[2]) - p2b_offset);
++	map[1].length = be32_to_cpu(reg[3]);
++	map[1].type = MT_DEVICE;
++		iotable_init(map, 2);
++
++	return 1;
++}
++
++static void __init bcm2835_map_io(void)
++{
++	const __be32 *ranges;
++	int soc, len;
++	unsigned long p2b_offset;
++
++	debug_ll_io_init();
++
++	/* Find out how to map bus to physical address first from soc/ranges */
++	soc = of_get_flat_dt_subnode_by_name(of_get_flat_dt_root(), "soc");
++	if (soc < 0)
++		return;
++	ranges = of_get_flat_dt_prop(soc, "ranges", &len);
++	if (!ranges || len < (sizeof(unsigned long) * 3))
++		return;
++	p2b_offset = be32_to_cpu(ranges[0]) - be32_to_cpu(ranges[1]);
++
++	/* Now search for bcm2708-usb node in device tree */
++	of_scan_flat_dt(bcm2835_map_usb, &p2b_offset);
++}
++
+ static const char * const bcm2835_compat[] = {
+ #ifdef CONFIG_ARCH_MULTI_V6
+ 	"brcm,bcm2835",
+@@ -37,6 +105,7 @@ static const char * const bcm2835_compat
+ };
+ 
+ DT_MACHINE_START(BCM2835, "BCM2835")
++	.map_io = bcm2835_map_io,
+ 	.init_machine = bcm2835_init,
+ 	.dt_compat = bcm2835_compat,
+ 	.smp = smp_ops(bcm2836_smp_ops),
diff --git a/target/linux/bcm27xx/patches-5.10/950-0072-ARM-Activate-FIQs-to-avoid-__irq_startup-warnings.patch b/target/linux/bcm27xx/patches-5.10/950-0072-ARM-Activate-FIQs-to-avoid-__irq_startup-warnings.patch
new file mode 100644
index 0000000000..99acfdd00d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0072-ARM-Activate-FIQs-to-avoid-__irq_startup-warnings.patch
@@ -0,0 +1,36 @@
+From 594abebdffdcff606bc445f2661d9a504f180136 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 11 Dec 2017 09:18:32 +0000
+Subject: [PATCH] ARM: Activate FIQs to avoid __irq_startup warnings
+
+There is a new test in __irq_startup that the IRQ is activated, which
+hasn't been the case for FIQs since they bypass some of the usual setup.
+
+Augment enable_fiq to include a call to irq_activate to avoid the
+warning.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/kernel/fiq.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/arch/arm/kernel/fiq.c
++++ b/arch/arm/kernel/fiq.c
+@@ -56,6 +56,8 @@
+ static unsigned long dfl_fiq_insn;
+ static struct pt_regs dfl_fiq_regs;
+ 
++extern int irq_activate(struct irq_desc *desc);
++
+ /* Default reacquire function
+  * - we always relinquish FIQ control
+  * - we always reacquire FIQ control
+@@ -140,6 +142,8 @@ static int fiq_start;
+ 
+ void enable_fiq(int fiq)
+ {
++	struct irq_desc *desc = irq_to_desc(fiq + fiq_start);
++	irq_activate(desc);
+ 	enable_irq(fiq + fiq_start);
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0073-raspberrypi-firmware-Export-the-general-transaction-.patch b/target/linux/bcm27xx/patches-5.10/950-0073-raspberrypi-firmware-Export-the-general-transaction-.patch
new file mode 100644
index 0000000000..8450d5f48a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0073-raspberrypi-firmware-Export-the-general-transaction-.patch
@@ -0,0 +1,32 @@
+From 9cf689eda644ccba0c80982cbd821c9163f5de39 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Wed, 14 Sep 2016 09:16:19 +0100
+Subject: [PATCH] raspberrypi-firmware: Export the general transaction
+ function.
+
+The vc4-firmware-kms module is going to be doing the MBOX FB call.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/firmware/raspberrypi.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -43,7 +43,7 @@ static void response_callback(struct mbo
+  * Sends a request to the firmware through the BCM2835 mailbox driver,
+  * and synchronously waits for the reply.
+  */
+-static int
++int
+ rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)
+ {
+ 	u32 message = MBOX_MSG(chan, data);
+@@ -68,6 +68,7 @@ rpi_firmware_transaction(struct rpi_firm
+ 
+ 	return ret;
+ }
++EXPORT_SYMBOL_GPL(rpi_firmware_transaction);
+ 
+ /**
+  * rpi_firmware_property_list - Submit firmware property list
diff --git a/target/linux/bcm27xx/patches-5.10/950-0074-i2c-gpio-Also-set-bus-numbers-from-reg-property.patch b/target/linux/bcm27xx/patches-5.10/950-0074-i2c-gpio-Also-set-bus-numbers-from-reg-property.patch
new file mode 100644
index 0000000000..a922328339
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0074-i2c-gpio-Also-set-bus-numbers-from-reg-property.patch
@@ -0,0 +1,35 @@
+From 798407c217fee8f4869bf76d9cd2cda16f93e24f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 20 Feb 2018 10:07:27 +0000
+Subject: [PATCH] i2c-gpio: Also set bus numbers from reg property
+
+I2C busses can be assigned specific bus numbers using aliases in
+Device Tree - string properties where the name is the alias and the
+value is the path to the node. The current DT parameter mechanism
+does not allow property names to be derived from a parameter value
+in any way, so it isn't possible to generate unique or matching
+aliases for nodes from an overlay that can generate multiple
+instances, e.g. i2c-gpio.
+
+Work around this limitation (at least temporarily) by allowing
+the i2c adapter number to be initialised from the "reg" property
+if present.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/i2c/busses/i2c-gpio.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/i2c/busses/i2c-gpio.c
++++ b/drivers/i2c/busses/i2c-gpio.c
+@@ -445,7 +445,9 @@ static int i2c_gpio_probe(struct platfor
+ 	adap->dev.parent = dev;
+ 	adap->dev.of_node = np;
+ 
+-	adap->nr = pdev->id;
++	if (pdev->id != PLATFORM_DEVID_NONE || !pdev->dev.of_node ||
++	    of_property_read_u32(pdev->dev.of_node, "reg", &adap->nr))
++		adap->nr = pdev->id;
+ 	ret = i2c_bit_add_numbered_bus(adap);
+ 	if (ret)
+ 		return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0075-added-capture_clear-option-to-pps-gpio-via-dtoverlay.patch b/target/linux/bcm27xx/patches-5.10/950-0075-added-capture_clear-option-to-pps-gpio-via-dtoverlay.patch
new file mode 100644
index 0000000000..80f68e9085
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0075-added-capture_clear-option-to-pps-gpio-via-dtoverlay.patch
@@ -0,0 +1,21 @@
+From 781bfd769e192aa39ef93fa37c812af444a9cf93 Mon Sep 17 00:00:00 2001
+From: hdoverobinson <hdoverobinson@gmail.com>
+Date: Tue, 13 Mar 2018 06:58:39 -0400
+Subject: [PATCH] added capture_clear option to pps-gpio via dtoverlay
+ (#2433)
+
+---
+ drivers/pps/clients/pps-gpio.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/pps/clients/pps-gpio.c
++++ b/drivers/pps/clients/pps-gpio.c
+@@ -145,6 +145,8 @@ static int pps_gpio_setup(struct platfor
+ 
+ 	if (of_property_read_bool(np, "assert-falling-edge"))
+ 		data->assert_falling_edge = true;
++        if (of_property_read_bool(np, "capture-clear"))
++                data->capture_clear = true;
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0076-lan78xx-Read-initial-EEE-status-from-DT.patch b/target/linux/bcm27xx/patches-5.10/950-0076-lan78xx-Read-initial-EEE-status-from-DT.patch
new file mode 100644
index 0000000000..56c0f537fe
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0076-lan78xx-Read-initial-EEE-status-from-DT.patch
@@ -0,0 +1,40 @@
+From 1fbf5f72be35918230b0bbdff3bcf44318f1374a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 9 Mar 2018 12:01:00 +0000
+Subject: [PATCH] lan78xx: Read initial EEE status from DT
+
+Add two new DT properties:
+* microchip,eee-enabled  - a boolean to enable EEE
+* microchip,tx-lpi-timer - time in microseconds to wait before entering
+                           low power state
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2635,6 +2635,22 @@ static int lan78xx_open(struct net_devic
+ 
+ 	netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
+ 
++	if (of_property_read_bool(dev->udev->dev.of_node,
++				  "microchip,eee-enabled")) {
++		struct ethtool_eee edata;
++		memset(&edata, 0, sizeof(edata));
++		edata.cmd = ETHTOOL_SEEE;
++		edata.advertised = ADVERTISED_1000baseT_Full |
++				   ADVERTISED_100baseT_Full;
++		edata.eee_enabled = true;
++		edata.tx_lpi_enabled = true;
++		if (of_property_read_u32(dev->udev->dev.of_node,
++					 "microchip,tx-lpi-timer",
++					 &edata.tx_lpi_timer))
++			edata.tx_lpi_timer = 600; /* non-aggressive */
++		(void)lan78xx_set_eee(net, &edata);
++	}
++
+ 	/* for Link Check */
+ 	if (dev->urb_intr) {
+ 		ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0077-hid-Reduce-default-mouse-polling-interval-to-60Hz.patch b/target/linux/bcm27xx/patches-5.10/950-0077-hid-Reduce-default-mouse-polling-interval-to-60Hz.patch
new file mode 100644
index 0000000000..2c17fb0aa6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0077-hid-Reduce-default-mouse-polling-interval-to-60Hz.patch
@@ -0,0 +1,32 @@
+From 32648d9e5440756f571bff70e8c49069dbba5137 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 14 Jul 2014 22:02:09 +0100
+Subject: [PATCH] hid: Reduce default mouse polling interval to 60Hz
+
+Reduces overhead when using X
+---
+ drivers/hid/usbhid/hid-core.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/hid/usbhid/hid-core.c
++++ b/drivers/hid/usbhid/hid-core.c
+@@ -45,7 +45,7 @@
+  * Module parameters.
+  */
+ 
+-static unsigned int hid_mousepoll_interval;
++static unsigned int hid_mousepoll_interval = ~0;
+ module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
+ MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
+ 
+@@ -1114,7 +1114,9 @@ static int usbhid_start(struct hid_devic
+ 		 */
+ 		switch (hid->collection->usage) {
+ 		case HID_GD_MOUSE:
+-			if (hid_mousepoll_interval > 0)
++			if (hid_mousepoll_interval == ~0 && interval < 16)
++				interval = 16;
++			else if (hid_mousepoll_interval != ~0 && hid_mousepoll_interval != 0)
+ 				interval = hid_mousepoll_interval;
+ 			break;
+ 		case HID_GD_JOYSTICK:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch b/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
new file mode 100644
index 0000000000..a8aa6fe882
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0078-Add-ability-to-export-gpio-used-by-gpio-poweroff.patch
@@ -0,0 +1,57 @@
+From a8d5d1b7fbc78132f5def4b8af4f221df83df04e Mon Sep 17 00:00:00 2001
+From: Nick Bulleid <nedbulleid@fastmail.com>
+Date: Thu, 10 May 2018 21:57:02 +0100
+Subject: [PATCH] Add ability to export gpio used by gpio-poweroff
+
+Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
+
+Added export feature to gpio-poweroff documentation
+
+Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
+---
+ .../devicetree/bindings/power/reset/gpio-poweroff.txt    | 1 +
+ drivers/power/reset/gpio-poweroff.c                      | 9 +++++++++
+ 2 files changed, 10 insertions(+)
+
+--- a/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt
++++ b/Documentation/devicetree/bindings/power/reset/gpio-poweroff.txt
+@@ -31,6 +31,7 @@ Optional properties:
+ - inactive-delay-ms: Delay (default 100) to wait after driving gpio inactive
+ - timeout-ms: Time to wait before asserting a WARN_ON(1). If nothing is
+               specified, 3000 ms is used.
++- export : Export the GPIO line to the sysfs system
+ 
+ Examples:
+ 
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -51,6 +51,7 @@ static int gpio_poweroff_probe(struct pl
+ 	bool input = false;
+ 	enum gpiod_flags flags;
+ 	bool force = false;
++	bool export = false;
+ 
+ 	/* If a pm_power_off function has already been added, leave it alone */
+ 	force = of_property_read_bool(pdev->dev.of_node, "force");
+@@ -76,6 +77,12 @@ static int gpio_poweroff_probe(struct pl
+ 	if (IS_ERR(reset_gpio))
+ 		return PTR_ERR(reset_gpio);
+ 
++	export = of_property_read_bool(pdev->dev.of_node, "export");
++	if (export) {
++		gpiod_export(reset_gpio, false);
++		gpiod_export_link(&pdev->dev, "poweroff-gpio", reset_gpio);
++	}
++
+ 	pm_power_off = &gpio_poweroff_do_poweroff;
+ 	return 0;
+ }
+@@ -85,6 +92,8 @@ static int gpio_poweroff_remove(struct p
+ 	if (pm_power_off == &gpio_poweroff_do_poweroff)
+ 		pm_power_off = NULL;
+ 
++	gpiod_unexport(reset_gpio);
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0079-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch b/target/linux/bcm27xx/patches-5.10/950-0079-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch
new file mode 100644
index 0000000000..bdcf5c4b42
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0079-firmware-raspberrypi-Notify-firmware-of-a-reboot.patch
@@ -0,0 +1,84 @@
+From bf6b5dbb7c8423b9d6bdfec21a9122691f2587d9 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Sat, 12 May 2018 21:35:43 +0100
+Subject: [PATCH] firmware/raspberrypi: Notify firmware of a reboot
+
+Register for reboot notifications, sending RPI_FIRMWARE_NOTIFY_REBOOT
+over the mailbox interface on reception.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/firmware/raspberrypi.c | 40 +++++++++++++++++++++++++++++++++-
+ 1 file changed, 39 insertions(+), 1 deletion(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -11,6 +11,7 @@
+ #include <linux/module.h>
+ #include <linux/of_platform.h>
+ #include <linux/platform_device.h>
++#include <linux/reboot.h>
+ #include <linux/slab.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+@@ -177,6 +178,26 @@ int rpi_firmware_property(struct rpi_fir
+ }
+ EXPORT_SYMBOL_GPL(rpi_firmware_property);
+ 
++static int rpi_firmware_notify_reboot(struct notifier_block *nb,
++				      unsigned long action,
++				      void *data)
++{
++	struct rpi_firmware *fw;
++	struct platform_device *pdev = g_pdev;
++
++	if (!pdev)
++		return 0;
++
++	fw = platform_get_drvdata(pdev);
++	if (!fw)
++		return 0;
++
++	(void)rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_REBOOT,
++				    0, 0);
++
++	return 0;
++}
++
+ static void
+ rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)
+ {
+@@ -318,15 +339,32 @@ static struct platform_driver rpi_firmwa
+ 	.remove		= rpi_firmware_remove,
+ };
+ 
++static struct notifier_block rpi_firmware_reboot_notifier = {
++	.notifier_call = rpi_firmware_notify_reboot,
++};
++
+ static int __init rpi_firmware_init(void)
+ {
+-	return platform_driver_register(&rpi_firmware_driver);
++	int ret = register_reboot_notifier(&rpi_firmware_reboot_notifier);
++	if (ret)
++		goto out1;
++	ret = platform_driver_register(&rpi_firmware_driver);
++	if (ret)
++		goto out2;
++
++	return 0;
++
++out2:
++	unregister_reboot_notifier(&rpi_firmware_reboot_notifier);
++out1:
++	return ret;
+ }
+ subsys_initcall(rpi_firmware_init);
+ 
+ static void __init rpi_firmware_exit(void)
+ {
+ 	platform_driver_unregister(&rpi_firmware_driver);
++	unregister_reboot_notifier(&rpi_firmware_reboot_notifier);
+ }
+ module_exit(rpi_firmware_exit);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0080-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch b/target/linux/bcm27xx/patches-5.10/950-0080-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch
new file mode 100644
index 0000000000..c02f5f699b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0080-irqchip-irq-bcm2835-Calc.-FIQ_START-at-boot-time.patch
@@ -0,0 +1,66 @@
+From 35a38d723d9cd61be4c39defad4e44b1a6acc4b8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 14 Jun 2018 11:21:04 +0100
+Subject: [PATCH] irqchip: irq-bcm2835: Calc. FIQ_START at boot-time
+
+ad83c7cb2f37 ("irqchip/irq-bcm2836: Add support for DT interrupt polarity")
+changed the way that the BCM2836/7 local interrupts are mapped; instead
+of being pre-mapped they are now mapped on-demand. A side effect of this
+change is that the call to irq_of_parse_and_map from armctrl_of_init
+creates a new mapping, forming a gap between the IRQs and the FIQs. This
+ gap breaks the FIQ<->IRQ mapping which up to now has been done by assuming:
+
+1) that the value of FIQ_START is the same as the number of normal IRQs
+that will be mapped (still true), and
+
+2) that this value is also the offset between an IRQ and its equivalent
+FIQ (which is no longer the case).
+
+Remove both assumptions by measuring the interval between the last IRQ
+and the last FIQ, passing it as the parameter to init_FIQ().
+
+Fixes: https://github.com/raspberrypi/linux/issues/2432
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -74,8 +74,6 @@
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
+ #define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
+-#undef FIQ_START
+-#define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+ static const int reg_enable[] __initconst = { 0x18, 0x10, 0x14 };
+@@ -203,7 +201,7 @@ static int __init armctrl_of_init(struct
+ 				  bool is_2836)
+ {
+ 	void __iomem *base;
+-	int irq, b, i;
++	int irq = 0, last_irq, b, i;
+ 	u32 reg;
+ 
+ 	base = of_iomap(node, 0);
+@@ -243,6 +241,8 @@ static int __init armctrl_of_init(struct
+ 		pr_err(FW_BUG "Bootloader left fiq enabled\n");
+ 	}
+ 
++	last_irq = irq;
++
+ 	if (is_2836) {
+ 		int parent_irq = irq_of_parse_and_map(node, 0);
+ 
+@@ -273,7 +273,7 @@ static int __init armctrl_of_init(struct
+ 		}
+ 	}
+ #ifndef CONFIG_ARM64
+-	init_FIQ(FIQ_START);
++	init_FIQ(irq - last_irq);
+ #endif
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0081-of-configfs-Use-of_overlay_fdt_apply-API-call.patch b/target/linux/bcm27xx/patches-5.10/950-0081-of-configfs-Use-of_overlay_fdt_apply-API-call.patch
new file mode 100644
index 0000000000..f707f220a2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0081-of-configfs-Use-of_overlay_fdt_apply-API-call.patch
@@ -0,0 +1,114 @@
+From 342afb4c37627f9d8e9d5bb07b3182a5c412c75e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 14 Jun 2018 15:07:26 +0100
+Subject: [PATCH] of: configfs: Use of_overlay_fdt_apply API call
+
+The published API to the dynamic overlay application mechanism now
+takes a Flattened Device Tree blob as input so that it can manage the
+lifetime of the unflattened tree. Conveniently, the new API call -
+of_overlay_fdt_apply - is virtually a drop-in replacement for
+create_overlay, which can now be deleted.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/of/configfs.c | 47 +++++++------------------------------------
+ 1 file changed, 7 insertions(+), 40 deletions(-)
+
+--- a/drivers/of/configfs.c
++++ b/drivers/of/configfs.c
+@@ -40,41 +40,6 @@ struct cfs_overlay_item {
+ 	int			dtbo_size;
+ };
+ 
+-static int create_overlay(struct cfs_overlay_item *overlay, void *blob)
+-{
+-	int err;
+-
+-	/* unflatten the tree */
+-	of_fdt_unflatten_tree(blob, NULL, &overlay->overlay);
+-	if (overlay->overlay == NULL) {
+-		pr_err("%s: failed to unflatten tree\n", __func__);
+-		err = -EINVAL;
+-		goto out_err;
+-	}
+-	pr_debug("%s: unflattened OK\n", __func__);
+-
+-	/* mark it as detached */
+-	of_node_set_flag(overlay->overlay, OF_DETACHED);
+-
+-	/* perform resolution */
+-	err = of_resolve_phandles(overlay->overlay);
+-	if (err != 0) {
+-		pr_err("%s: Failed to resolve tree\n", __func__);
+-		goto out_err;
+-	}
+-	pr_debug("%s: resolved OK\n", __func__);
+-
+-	err = of_overlay_apply(overlay->overlay, &overlay->ov_id);
+-	if (err < 0) {
+-		pr_err("%s: Failed to create overlay (err=%d)\n",
+-				__func__, err);
+-		goto out_err;
+-	}
+-
+-out_err:
+-	return err;
+-}
+-
+ static inline struct cfs_overlay_item *to_cfs_overlay_item(
+ 		struct config_item *item)
+ {
+@@ -115,7 +80,8 @@ static ssize_t cfs_overlay_item_path_sto
+ 	if (err != 0)
+ 		goto out_err;
+ 
+-	err = create_overlay(overlay, (void *)overlay->fw->data);
++	err = of_overlay_fdt_apply((void *)overlay->fw->data,
++				   (u32)overlay->fw->size, &overlay->ov_id);
+ 	if (err != 0)
+ 		goto out_err;
+ 
+@@ -136,7 +102,7 @@ static ssize_t cfs_overlay_item_status_s
+ 	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
+ 
+ 	return sprintf(page, "%s\n",
+-			overlay->ov_id >= 0 ? "applied" : "unapplied");
++			overlay->ov_id > 0 ? "applied" : "unapplied");
+ }
+ 
+ CONFIGFS_ATTR(cfs_overlay_item_, path);
+@@ -188,7 +154,8 @@ ssize_t cfs_overlay_item_dtbo_write(stru
+ 
+ 	overlay->dtbo_size = count;
+ 
+-	err = create_overlay(overlay, overlay->dtbo);
++	err = of_overlay_fdt_apply(overlay->dtbo, overlay->dtbo_size,
++				   &overlay->ov_id);
+ 	if (err != 0)
+ 		goto out_err;
+ 
+@@ -198,6 +165,7 @@ out_err:
+ 	kfree(overlay->dtbo);
+ 	overlay->dtbo = NULL;
+ 	overlay->dtbo_size = 0;
++	overlay->ov_id = 0;
+ 
+ 	return err;
+ }
+@@ -213,7 +181,7 @@ static void cfs_overlay_release(struct c
+ {
+ 	struct cfs_overlay_item *overlay = to_cfs_overlay_item(item);
+ 
+-	if (overlay->ov_id >= 0)
++	if (overlay->ov_id > 0)
+ 		of_overlay_remove(&overlay->ov_id);
+ 	if (overlay->fw)
+ 		release_firmware(overlay->fw);
+@@ -241,7 +209,6 @@ static struct config_item *cfs_overlay_g
+ 	overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
+ 	if (!overlay)
+ 		return ERR_PTR(-ENOMEM);
+-	overlay->ov_id = -1;
+ 
+ 	config_item_init_type_name(&overlay->item, name, &cfs_overlay_type);
+ 	return &overlay->item;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0082-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch b/target/linux/bcm27xx/patches-5.10/950-0082-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch
new file mode 100644
index 0000000000..232e4d4336
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0082-net-lan78xx-Disable-TCP-Segmentation-Offload-TSO.patch
@@ -0,0 +1,56 @@
+From 42606db546588b0e0b8084466b9b31ec111640a4 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 13 Jun 2018 15:21:10 +0100
+Subject: [PATCH] net: lan78xx: Disable TCP Segmentation Offload (TSO)
+
+TSO seems to be having issues when packets are dropped and the
+remote end uses Selective Acknowledge (SACK) to denote that
+data is missing. The missing data is never resent, so the
+connection eventually stalls.
+
+There is a module parameter of enable_tso added to allow
+further debugging without forcing a rebuild of the kernel.
+
+https://github.com/raspberrypi/linux/issues/2449
+https://github.com/raspberrypi/linux/issues/2482
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -425,6 +425,15 @@ static int msg_level = -1;
+ module_param(msg_level, int, 0);
+ MODULE_PARM_DESC(msg_level, "Override default message level");
+ 
++/* TSO seems to be having some issue with Selective Acknowledge (SACK) that
++ * results in lost data never being retransmitted.
++ * Disable it by default now, but adds a module parameter to enable it for
++ * debug purposes (the full cause is not currently understood).
++ */
++static bool enable_tso;
++module_param(enable_tso, bool, 0644);
++MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload");
++
+ static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
+ {
+ 	u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
+@@ -2917,8 +2926,14 @@ static int lan78xx_bind(struct lan78xx_n
+ 	if (DEFAULT_RX_CSUM_ENABLE)
+ 		dev->net->features |= NETIF_F_RXCSUM;
+ 
+-	if (DEFAULT_TSO_CSUM_ENABLE)
+-		dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG;
++	if (DEFAULT_TSO_CSUM_ENABLE) {
++		dev->net->features |= NETIF_F_SG;
++		/* Use module parameter to control TCP segmentation offload as
++		 * it appears to cause issues.
++		 */
++		if (enable_tso)
++			dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6;
++	}
+ 
+ 	if (DEFAULT_VLAN_RX_OFFLOAD)
+ 		dev->net->features |= NETIF_F_HW_VLAN_CTAG_RX;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0083-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch b/target/linux/bcm27xx/patches-5.10/950-0083-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch
new file mode 100644
index 0000000000..b69c89febb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0083-lan78xx-Move-enabling-of-EEE-into-PHY-init-code.patch
@@ -0,0 +1,64 @@
+From c6edee4700821a65c9d94ac8e16b488fc652efd8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 5 Apr 2018 14:46:11 +0100
+Subject: [PATCH] lan78xx: Move enabling of EEE into PHY init code
+
+Enable EEE mode as soon as possible after connecting to the PHY, and
+before phy_start. This avoids a second link negotiation, which speeds
+up booting and stops the interface failing to become ready.
+
+See: https://github.com/raspberrypi/linux/issues/2437
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 32 ++++++++++++++++----------------
+ 1 file changed, 16 insertions(+), 16 deletions(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2167,6 +2167,22 @@ static int lan78xx_phy_init(struct lan78
+ 	mii_adv_to_linkmode_adv_t(fc, mii_adv);
+ 	linkmode_or(phydev->advertising, fc, phydev->advertising);
+ 
++	if (of_property_read_bool(dev->udev->dev.of_node,
++				  "microchip,eee-enabled")) {
++		struct ethtool_eee edata;
++		memset(&edata, 0, sizeof(edata));
++		edata.cmd = ETHTOOL_SEEE;
++		edata.advertised = ADVERTISED_1000baseT_Full |
++				   ADVERTISED_100baseT_Full;
++		edata.eee_enabled = true;
++		edata.tx_lpi_enabled = true;
++		if (of_property_read_u32(dev->udev->dev.of_node,
++					 "microchip,tx-lpi-timer",
++					 &edata.tx_lpi_timer))
++			edata.tx_lpi_timer = 600; /* non-aggressive */
++		(void)lan78xx_set_eee(dev->net, &edata);
++	}
++
+ 	if (phydev->mdio.dev.of_node) {
+ 		u32 reg;
+ 		int len;
+@@ -2644,22 +2660,6 @@ static int lan78xx_open(struct net_devic
+ 
+ 	netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
+ 
+-	if (of_property_read_bool(dev->udev->dev.of_node,
+-				  "microchip,eee-enabled")) {
+-		struct ethtool_eee edata;
+-		memset(&edata, 0, sizeof(edata));
+-		edata.cmd = ETHTOOL_SEEE;
+-		edata.advertised = ADVERTISED_1000baseT_Full |
+-				   ADVERTISED_100baseT_Full;
+-		edata.eee_enabled = true;
+-		edata.tx_lpi_enabled = true;
+-		if (of_property_read_u32(dev->udev->dev.of_node,
+-					 "microchip,tx-lpi-timer",
+-					 &edata.tx_lpi_timer))
+-			edata.tx_lpi_timer = 600; /* non-aggressive */
+-		(void)lan78xx_set_eee(net, &edata);
+-	}
+-
+ 	/* for Link Check */
+ 	if (dev->urb_intr) {
+ 		ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0084-Add-rpi-poe-fan-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0084-Add-rpi-poe-fan-driver.patch
new file mode 100644
index 0000000000..a93529e4ba
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0084-Add-rpi-poe-fan-driver.patch
@@ -0,0 +1,581 @@
+From 079bce6210d997fda44d6143b4b394173360bef1 Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.org>
+Date: Mon, 9 Jul 2018 12:54:25 +0100
+Subject: [PATCH] Add rpi-poe-fan driver
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.org>
+
+PoE HAT driver cleanup
+
+* Fix undeclared variable in rpi_poe_fan_suspend
+* Add SPDX-License-Identifier
+* Expand PoE acronym in Kconfig help
+* Give clearer error message on of_property_count_u32_elems fail
+* Add documentation
+* Add vendor to of_device_id compatible string.
+* Rename m_data_s struct to fw_data_s
+* Fix typos
+
+Fixes: #2665
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.org>
+
+rpi-poe-fan: fix def_pwm1 writes
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.org>
+---
+ .../devicetree/bindings/hwmon/rpi-poe-fan.txt |  55 +++
+ Documentation/hwmon/rpi-poe-fan               |  15 +
+ drivers/hwmon/Kconfig                         |  11 +
+ drivers/hwmon/Makefile                        |   1 +
+ drivers/hwmon/rpi-poe-fan.c                   | 436 ++++++++++++++++++
+ 5 files changed, 518 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/hwmon/rpi-poe-fan.txt
+ create mode 100644 Documentation/hwmon/rpi-poe-fan
+ create mode 100644 drivers/hwmon/rpi-poe-fan.c
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/hwmon/rpi-poe-fan.txt
+@@ -0,0 +1,55 @@
++Bindings for the Raspberry Pi PoE HAT fan
++
++Required properties:
++- compatible	: "raspberrypi,rpi-poe-fan"
++- firmware	: Reference to the RPi firmware device node
++- pwms		: the PWM that is used to control the PWM fan
++- cooling-levels      : PWM duty cycle values in a range from 0 to 255
++			which correspond to thermal cooling states
++
++Example:
++	fan0: rpi-poe-fan@0 {
++		compatible = "raspberrypi,rpi-poe-fan";
++		firmware = <&firmware>;
++		cooling-min-state = <0>;
++		cooling-max-state = <3>;
++		#cooling-cells = <2>;
++		cooling-levels = <0 50 150 255>;
++		status = "okay";
++	};
++
++	thermal-zones {
++		cpu_thermal: cpu-thermal {
++			trips {
++				threshold: trip-point@0 {
++					temperature = <45000>;
++					hysteresis = <5000>;
++					type = "active";
++				};
++				target: trip-point@1 {
++					temperature = <50000>;
++					hysteresis = <2000>;
++					type = "active";
++				};
++				cpu_hot: cpu_hot@0 {
++					temperature = <55000>;
++					hysteresis = <2000>;
++					type = "active";
++				};
++			};
++			cooling-maps {
++				map0 {
++					trip = <&threshold>;
++					cooling-device = <&fan0 0 1>;
++				};
++				map1 {
++					trip = <&target>;
++					cooling-device = <&fan0 1 2>;
++				};
++				map2 {
++					trip = <&cpu_hot>;
++					cooling-device = <&fan0 2 3>;
++				};
++			};
++		};
++	};
+--- /dev/null
++++ b/Documentation/hwmon/rpi-poe-fan
+@@ -0,0 +1,15 @@
++Kernel driver rpi-poe-fan
++=====================
++
++This driver enables the use of the Raspberry Pi PoE HAT fan.
++
++Author: Serge Schneider <serge@raspberrypi.org>
++
++Description
++-----------
++
++The driver implements a simple interface for driving the Raspberry Pi PoE
++(Power over Ethernet) HAT fan. The driver passes commands to the Raspberry Pi
++firmware through the mailbox property interface. The firmware then forwards
++the commands to the board over I2C on the ID_EEPROM pins. The driver exposes
++the fan to the user space through the hwmon sysfs interface.
+--- a/drivers/hwmon/Kconfig
++++ b/drivers/hwmon/Kconfig
+@@ -1489,6 +1489,17 @@ config SENSORS_RASPBERRYPI_HWMON
+ 	  This driver can also be built as a module. If so, the module
+ 	  will be called raspberrypi-hwmon.
+ 
++config SENSORS_RPI_POE_FAN
++	tristate "Raspberry Pi PoE HAT fan"
++	depends on RASPBERRYPI_FIRMWARE
++	depends on THERMAL || THERMAL=n
++	help
++	  If you say yes here you get support for Raspberry Pi PoE (Power over
++	  Ethernet) HAT fan.
++
++	  This driver can also be built as a module.  If so, the module
++	  will be called rpi-poe-fan.
++
+ config SENSORS_SL28CPLD
+ 	tristate "Kontron sl28cpld hardware monitoring driver"
+ 	depends on MFD_SL28CPLD || COMPILE_TEST
+--- a/drivers/hwmon/Makefile
++++ b/drivers/hwmon/Makefile
+@@ -157,6 +157,7 @@ obj-$(CONFIG_SENSORS_PCF8591)	+= pcf8591
+ obj-$(CONFIG_SENSORS_POWR1220)  += powr1220.o
+ obj-$(CONFIG_SENSORS_PWM_FAN)	+= pwm-fan.o
+ obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON)	+= raspberrypi-hwmon.o
++obj-$(CONFIG_SENSORS_RPI_POE_FAN)	+= rpi-poe-fan.o
+ obj-$(CONFIG_SENSORS_S3C)	+= s3c-hwmon.o
+ obj-$(CONFIG_SENSORS_SCH56XX_COMMON)+= sch56xx-common.o
+ obj-$(CONFIG_SENSORS_SCH5627)	+= sch5627.o
+--- /dev/null
++++ b/drivers/hwmon/rpi-poe-fan.c
+@@ -0,0 +1,436 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * rpi-poe-fan.c - Hwmon driver for Raspberry Pi PoE HAT fan.
++ *
++ * Copyright (C) 2018 Raspberry Pi (Trading) Ltd.
++ * Based on pwm-fan.c by Kamil Debski <k.debski@samsung.com>
++ *
++ * Author: Serge Schneider <serge@raspberrypi.org>
++ */
++
++#include <linux/hwmon.h>
++#include <linux/hwmon-sysfs.h>
++#include <linux/module.h>
++#include <linux/mutex.h>
++#include <linux/notifier.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/reboot.h>
++#include <linux/sysfs.h>
++#include <linux/thermal.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define MAX_PWM 255
++
++#define POE_CUR_PWM 0x0
++#define POE_DEF_PWM 0x1
++
++struct rpi_poe_fan_ctx {
++	struct mutex lock;
++	struct rpi_firmware *fw;
++	unsigned int pwm_value;
++	unsigned int def_pwm_value;
++	unsigned int rpi_poe_fan_state;
++	unsigned int rpi_poe_fan_max_state;
++	unsigned int *rpi_poe_fan_cooling_levels;
++	struct thermal_cooling_device *cdev;
++	struct notifier_block nb;
++};
++
++struct fw_tag_data_s{
++	u32 reg;
++	u32 val;
++	u32 ret;
++};
++
++static int write_reg(struct rpi_firmware *fw, u32 reg, u32 *val){
++	struct fw_tag_data_s fw_tag_data = {
++		.reg = reg,
++		.val = *val
++	};
++	int ret;
++	ret = rpi_firmware_property(fw, RPI_FIRMWARE_SET_POE_HAT_VAL,
++				    &fw_tag_data, sizeof(fw_tag_data));
++	if (ret) {
++		return ret;
++	} else if (fw_tag_data.ret) {
++		return -EIO;
++	}
++	return 0;
++}
++
++static int read_reg(struct rpi_firmware *fw, u32 reg, u32 *val){
++	struct fw_tag_data_s fw_tag_data = {
++		.reg = reg,
++	};
++	int ret;
++	ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_POE_HAT_VAL,
++				    &fw_tag_data, sizeof(fw_tag_data));
++	if (ret) {
++		return ret;
++	} else if (fw_tag_data.ret) {
++		return -EIO;
++	}
++	*val = fw_tag_data.val;
++	return 0;
++}
++
++static int rpi_poe_reboot(struct notifier_block *nb, unsigned long code,
++			  void *unused)
++{
++	struct rpi_poe_fan_ctx *ctx = container_of(nb, struct rpi_poe_fan_ctx,
++						   nb);
++
++	if (ctx->pwm_value != ctx->def_pwm_value)
++		write_reg(ctx->fw, POE_CUR_PWM, &ctx->def_pwm_value);
++
++	return NOTIFY_DONE;
++}
++
++static int  __set_pwm(struct rpi_poe_fan_ctx *ctx, u32 pwm)
++{
++	int ret = 0;
++
++	mutex_lock(&ctx->lock);
++	if (ctx->pwm_value == pwm)
++		goto exit_set_pwm_err;
++
++	ret = write_reg(ctx->fw, POE_CUR_PWM, &pwm);
++	if (!ret)
++		ctx->pwm_value = pwm;
++exit_set_pwm_err:
++	mutex_unlock(&ctx->lock);
++	return ret;
++}
++
++static int  __set_def_pwm(struct rpi_poe_fan_ctx *ctx, u32 def_pwm)
++{
++	int ret = 0;
++	mutex_lock(&ctx->lock);
++	if (ctx->def_pwm_value == def_pwm)
++		goto exit_set_def_pwm_err;
++
++	ret = write_reg(ctx->fw, POE_DEF_PWM, &def_pwm);
++	if (!ret)
++		ctx->def_pwm_value = def_pwm;
++exit_set_def_pwm_err:
++	mutex_unlock(&ctx->lock);
++	return ret;
++}
++
++static void rpi_poe_fan_update_state(struct rpi_poe_fan_ctx *ctx,
++				     unsigned long pwm)
++{
++	int i;
++
++	for (i = 0; i < ctx->rpi_poe_fan_max_state; ++i)
++		if (pwm < ctx->rpi_poe_fan_cooling_levels[i + 1])
++			break;
++
++	ctx->rpi_poe_fan_state = i;
++}
++
++static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
++		       const char *buf, size_t count)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++	unsigned long pwm;
++	int ret;
++
++	if (kstrtoul(buf, 10, &pwm) || pwm > MAX_PWM)
++		return -EINVAL;
++
++	ret = __set_pwm(ctx, pwm);
++	if (ret)
++		return ret;
++
++	rpi_poe_fan_update_state(ctx, pwm);
++	return count;
++}
++
++static ssize_t set_def_pwm(struct device *dev, struct device_attribute *attr,
++			   const char *buf, size_t count)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++	unsigned long def_pwm;
++	int ret;
++
++	if (kstrtoul(buf, 10, &def_pwm) || def_pwm > MAX_PWM)
++		return -EINVAL;
++
++	ret = __set_def_pwm(ctx, def_pwm);
++	if (ret)
++		return ret;
++	return count;
++}
++
++static ssize_t show_pwm(struct device *dev,
++			struct device_attribute *attr, char *buf)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++
++	return sprintf(buf, "%u\n", ctx->pwm_value);
++}
++
++static ssize_t show_def_pwm(struct device *dev,
++			struct device_attribute *attr, char *buf)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++
++	return sprintf(buf, "%u\n", ctx->def_pwm_value);
++}
++
++
++static SENSOR_DEVICE_ATTR(pwm1, 0644, show_pwm, set_pwm, 0);
++static SENSOR_DEVICE_ATTR(def_pwm1, 0644, show_def_pwm, set_def_pwm, 1);
++
++static struct attribute *rpi_poe_fan_attrs[] = {
++	&sensor_dev_attr_pwm1.dev_attr.attr,
++	&sensor_dev_attr_def_pwm1.dev_attr.attr,
++	NULL,
++};
++
++ATTRIBUTE_GROUPS(rpi_poe_fan);
++
++/* thermal cooling device callbacks */
++static int rpi_poe_fan_get_max_state(struct thermal_cooling_device *cdev,
++				     unsigned long *state)
++{
++	struct rpi_poe_fan_ctx *ctx = cdev->devdata;
++
++	if (!ctx)
++		return -EINVAL;
++
++	*state = ctx->rpi_poe_fan_max_state;
++
++	return 0;
++}
++
++static int rpi_poe_fan_get_cur_state(struct thermal_cooling_device *cdev,
++				     unsigned long *state)
++{
++	struct rpi_poe_fan_ctx *ctx = cdev->devdata;
++
++	if (!ctx)
++		return -EINVAL;
++
++	*state = ctx->rpi_poe_fan_state;
++
++	return 0;
++}
++
++static int rpi_poe_fan_set_cur_state(struct thermal_cooling_device *cdev,
++				     unsigned long state)
++{
++	struct rpi_poe_fan_ctx *ctx = cdev->devdata;
++	int ret;
++
++	if (!ctx || (state > ctx->rpi_poe_fan_max_state))
++		return -EINVAL;
++
++	if (state == ctx->rpi_poe_fan_state)
++		return 0;
++
++	ret = __set_pwm(ctx, ctx->rpi_poe_fan_cooling_levels[state]);
++	if (ret) {
++		dev_err(&cdev->device, "Cannot set pwm!\n");
++		return ret;
++	}
++
++	ctx->rpi_poe_fan_state = state;
++
++	return ret;
++}
++
++static const struct thermal_cooling_device_ops rpi_poe_fan_cooling_ops = {
++	.get_max_state = rpi_poe_fan_get_max_state,
++	.get_cur_state = rpi_poe_fan_get_cur_state,
++	.set_cur_state = rpi_poe_fan_set_cur_state,
++};
++
++static int rpi_poe_fan_of_get_cooling_data(struct device *dev,
++				       struct rpi_poe_fan_ctx *ctx)
++{
++	struct device_node *np = dev->of_node;
++	int num, i, ret;
++
++	if (!of_find_property(np, "cooling-levels", NULL))
++		return 0;
++
++	ret = of_property_count_u32_elems(np, "cooling-levels");
++	if (ret <= 0) {
++		dev_err(dev, "cooling-levels property missing or invalid: %d\n",
++			ret);
++		return ret ? : -EINVAL;
++	}
++
++	num = ret;
++	ctx->rpi_poe_fan_cooling_levels = devm_kzalloc(dev, num * sizeof(u32),
++						   GFP_KERNEL);
++	if (!ctx->rpi_poe_fan_cooling_levels)
++		return -ENOMEM;
++
++	ret = of_property_read_u32_array(np, "cooling-levels",
++					 ctx->rpi_poe_fan_cooling_levels, num);
++	if (ret) {
++		dev_err(dev, "Property 'cooling-levels' cannot be read!\n");
++		return ret;
++	}
++
++	for (i = 0; i < num; i++) {
++		if (ctx->rpi_poe_fan_cooling_levels[i] > MAX_PWM) {
++			dev_err(dev, "PWM fan state[%d]:%d > %d\n", i,
++				ctx->rpi_poe_fan_cooling_levels[i], MAX_PWM);
++			return -EINVAL;
++		}
++	}
++
++	ctx->rpi_poe_fan_max_state = num - 1;
++
++	return 0;
++}
++
++static int rpi_poe_fan_probe(struct platform_device *pdev)
++{
++	struct thermal_cooling_device *cdev;
++	struct rpi_poe_fan_ctx *ctx;
++	struct device *hwmon;
++	struct device_node *np = pdev->dev.of_node;
++	struct device_node *fw_node;
++	int ret;
++
++	fw_node = of_parse_phandle(np, "firmware", 0);
++	if (!fw_node) {
++		dev_err(&pdev->dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
++	if (!ctx)
++		return -ENOMEM;
++
++	mutex_init(&ctx->lock);
++
++	ctx->fw = rpi_firmware_get(fw_node);
++	if (!ctx->fw)
++		return -EPROBE_DEFER;
++
++	platform_set_drvdata(pdev, ctx);
++
++	ctx->nb.notifier_call = rpi_poe_reboot;
++	ret = register_reboot_notifier(&ctx->nb);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to register reboot notifier: %i\n",
++			ret);
++		return ret;
++	}
++	ret = read_reg(ctx->fw, POE_DEF_PWM, &ctx->def_pwm_value);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to get default PWM value: %i\n",
++			ret);
++		goto err;
++	}
++	ret = read_reg(ctx->fw, POE_CUR_PWM, &ctx->pwm_value);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to get current PWM value: %i\n",
++			ret);
++		goto err;
++	}
++
++	hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, "rpipoefan",
++						       ctx, rpi_poe_fan_groups);
++	if (IS_ERR(hwmon)) {
++		dev_err(&pdev->dev, "Failed to register hwmon device\n");
++		ret = PTR_ERR(hwmon);
++		goto err;
++	}
++
++	ret = rpi_poe_fan_of_get_cooling_data(&pdev->dev, ctx);
++	if (ret)
++		return ret;
++
++	rpi_poe_fan_update_state(ctx, ctx->pwm_value);
++	if (!IS_ENABLED(CONFIG_THERMAL))
++		return 0;
++
++	cdev = thermal_of_cooling_device_register(np,
++						  "rpi-poe-fan", ctx,
++						  &rpi_poe_fan_cooling_ops);
++	if (IS_ERR(cdev)) {
++		dev_err(&pdev->dev,
++			"Failed to register rpi-poe-fan as cooling device");
++		ret = PTR_ERR(cdev);
++		goto err;
++	}
++	ctx->cdev = cdev;
++	thermal_cdev_update(cdev);
++
++	return 0;
++err:
++	unregister_reboot_notifier(&ctx->nb);
++	return ret;
++}
++
++static int rpi_poe_fan_remove(struct platform_device *pdev)
++{
++	struct rpi_poe_fan_ctx *ctx = platform_get_drvdata(pdev);
++	u32 value = ctx->def_pwm_value;
++
++	unregister_reboot_notifier(&ctx->nb);
++	thermal_cooling_device_unregister(ctx->cdev);
++	if (ctx->pwm_value != value) {
++		write_reg(ctx->fw, POE_CUR_PWM, &value);
++	}
++	return 0;
++}
++
++#ifdef CONFIG_PM_SLEEP
++static int rpi_poe_fan_suspend(struct device *dev)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++	u32 value = 0;
++	int ret = 0;
++
++	if (ctx->pwm_value != value)
++		ret = write_reg(ctx->fw, POE_CUR_PWM, &value);
++	return ret;
++}
++
++static int rpi_poe_fan_resume(struct device *dev)
++{
++	struct rpi_poe_fan_ctx *ctx = dev_get_drvdata(dev);
++	u32 value = ctx->pwm_value;
++	int ret = 0;
++
++	if (value != 0)
++		ret = write_reg(ctx->fw, POE_CUR_PWM, &value);
++
++	return ret;
++}
++#endif
++
++static SIMPLE_DEV_PM_OPS(rpi_poe_fan_pm, rpi_poe_fan_suspend,
++			 rpi_poe_fan_resume);
++
++static const struct of_device_id of_rpi_poe_fan_match[] = {
++	{ .compatible = "raspberrypi,rpi-poe-fan", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, of_rpi_poe_fan_match);
++
++static struct platform_driver rpi_poe_fan_driver = {
++	.probe		= rpi_poe_fan_probe,
++	.remove		= rpi_poe_fan_remove,
++	.driver	= {
++		.name		= "rpi-poe-fan",
++		.pm		= &rpi_poe_fan_pm,
++		.of_match_table	= of_rpi_poe_fan_match,
++	},
++};
++
++module_platform_driver(rpi_poe_fan_driver);
++
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_ALIAS("platform:rpi-poe-fan");
++MODULE_DESCRIPTION("Raspberry Pi PoE HAT fan driver");
++MODULE_LICENSE("GPL");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0085-cxd2880-CXD2880_SPI_DRV-should-select-DVB_CXD2880-wi.patch b/target/linux/bcm27xx/patches-5.10/950-0085-cxd2880-CXD2880_SPI_DRV-should-select-DVB_CXD2880-wi.patch
new file mode 100644
index 0000000000..23bd06f3db
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0085-cxd2880-CXD2880_SPI_DRV-should-select-DVB_CXD2880-wi.patch
@@ -0,0 +1,20 @@
+From 5156d25449f1a76a72be090a595ee7e25cb74bc6 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 17 Sep 2018 17:31:18 +0100
+Subject: [PATCH] cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880
+ with MEDIA_SUBDRV_AUTOSELECT
+
+---
+ drivers/media/spi/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/spi/Kconfig
++++ b/drivers/media/spi/Kconfig
+@@ -25,6 +25,7 @@ menu "Media SPI Adapters"
+ config CXD2880_SPI_DRV
+ 	tristate "Sony CXD2880 SPI support"
+ 	depends on DVB_CORE && SPI
++	select DVB_CXD2880 if MEDIA_SUBDRV_AUTOSELECT
+ 	default m if !MEDIA_SUBDRV_AUTOSELECT
+ 	help
+ 	  Choose if you would like to have SPI interface support for Sony CXD2880.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0086-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch b/target/linux/bcm27xx/patches-5.10/950-0086-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch
new file mode 100644
index 0000000000..c6fe514618
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0086-hwmon-raspberrypi-Prevent-voltage-low-warnings-from-.patch
@@ -0,0 +1,75 @@
+From f6e40957774cd71b4a8ce2190d94ef8e9b289938 Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <stefan.wahren@i2se.com>
+Date: Sat, 6 Oct 2018 16:46:18 +0200
+Subject: [PATCH] hwmon: raspberrypi: Prevent voltage low warnings from
+ filling log
+
+Although the correct fix for low voltage warnings is to
+improve the power supply, the current implementation
+of the detection can fill the log if the warning
+happens freqently. This replaces the logging with
+slightly custom ratelimited logging.
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+---
+ drivers/hwmon/raspberrypi-hwmon.c | 41 ++++++++++++++++++++++++++++---
+ 1 file changed, 37 insertions(+), 4 deletions(-)
+
+--- a/drivers/hwmon/raspberrypi-hwmon.c
++++ b/drivers/hwmon/raspberrypi-hwmon.c
+@@ -15,6 +15,36 @@
+ #include <linux/workqueue.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
++/*
++ * This section defines some rate limited logging that prevent
++ * repeated messages at much lower Hz than the default kernel settings.
++ * It's usually 5s, this is 5 minutes.
++ * Burst 3 means you may get three messages 'quickly', before
++ * the ratelimiting kicks in.
++ */
++#define LOCAL_RATELIMIT_INTERVAL (5 * 60 * HZ)
++#define LOCAL_RATELIMIT_BURST 3
++
++#ifdef CONFIG_PRINTK
++#define printk_ratelimited_local(fmt, ...)	\
++({						\
++	static DEFINE_RATELIMIT_STATE(_rs,	\
++		LOCAL_RATELIMIT_INTERVAL,	\
++		LOCAL_RATELIMIT_BURST);		\
++						\
++	if (__ratelimit(&_rs))			\
++		printk(fmt, ##__VA_ARGS__);	\
++})
++#else
++#define printk_ratelimited_local(fmt, ...)	\
++	no_printk(fmt, ##__VA_ARGS__)
++#endif
++
++#define pr_crit_ratelimited_local(fmt, ...)              \
++	printk_ratelimited_local(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
++#define pr_info_ratelimited_local(fmt, ...)              \
++printk_ratelimited_local(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
++
+ #define UNDERVOLTAGE_STICKY_BIT	BIT(16)
+ 
+ struct rpi_hwmon_data {
+@@ -47,10 +77,13 @@ static void rpi_firmware_get_throttled(s
+ 	if (new_uv == old_uv)
+ 		return;
+ 
+-	if (new_uv)
+-		dev_crit(data->hwmon_dev, "Undervoltage detected!\n");
+-	else
+-		dev_info(data->hwmon_dev, "Voltage normalised\n");
++	if (new_uv) {
++		pr_crit_ratelimited_local("Under-voltage detected! (0x%08x)\n",
++					  value);
++	} else {
++		pr_info_ratelimited_local("Voltage normalised (0x%08x)\n",
++					  value);
++	}
+ 
+ 	sysfs_notify(&data->hwmon_dev->kobj, NULL, "in0_lcrit_alarm");
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0087-firmware-raspberrypi-Add-backward-compatible-get_thr.patch b/target/linux/bcm27xx/patches-5.10/950-0087-firmware-raspberrypi-Add-backward-compatible-get_thr.patch
new file mode 100644
index 0000000000..ac331f34dc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0087-firmware-raspberrypi-Add-backward-compatible-get_thr.patch
@@ -0,0 +1,79 @@
+From 1910584831fe065c50efc3c07b8ea08ff90e6f31 Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <stefan.wahren@i2se.com>
+Date: Sat, 13 Oct 2018 13:31:21 +0200
+Subject: [PATCH] firmware: raspberrypi: Add backward compatible
+ get_throttled
+
+Avoid a hard userspace ABI change by adding a compatible get_throttled
+sysfs entry. Its value is now feed by the GET_THROTTLED requests of the
+new hwmon driver. The first access to get_throttled will generate
+a warning.
+
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+---
+ drivers/firmware/raspberrypi.c | 33 +++++++++++++++++++++++++++++++++
+ 1 file changed, 33 insertions(+)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -28,6 +28,7 @@ struct rpi_firmware {
+ 	struct mbox_chan *chan; /* The property channel. */
+ 	struct completion c;
+ 	u32 enabled;
++	u32 get_throttled;
+ };
+ 
+ static struct platform_device *g_pdev;
+@@ -174,6 +175,12 @@ int rpi_firmware_property(struct rpi_fir
+ 
+ 	kfree(data);
+ 
++	if ((tag == RPI_FIRMWARE_GET_THROTTLED) &&
++	     memcmp(&fw->get_throttled, tag_data, sizeof(fw->get_throttled))) {
++		memcpy(&fw->get_throttled, tag_data, sizeof(fw->get_throttled));
++		sysfs_notify(&fw->cl.dev->kobj, NULL, "get_throttled");
++	}
++
+ 	return ret;
+ }
+ EXPORT_SYMBOL_GPL(rpi_firmware_property);
+@@ -198,6 +205,27 @@ static int rpi_firmware_notify_reboot(st
+ 	return 0;
+ }
+ 
++static ssize_t get_throttled_show(struct device *dev,
++				  struct device_attribute *attr, char *buf)
++{
++	struct rpi_firmware *fw = dev_get_drvdata(dev);
++
++	WARN_ONCE(1, "deprecated, use hwmon sysfs instead\n");
++
++	return sprintf(buf, "%x\n", fw->get_throttled);
++}
++
++static DEVICE_ATTR_RO(get_throttled);
++
++static struct attribute *rpi_firmware_dev_attrs[] = {
++	&dev_attr_get_throttled.attr,
++	NULL,
++};
++
++static const struct attribute_group rpi_firmware_dev_group = {
++	.attrs = rpi_firmware_dev_attrs,
++};
++
+ static void
+ rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)
+ {
+@@ -227,6 +255,11 @@ rpi_register_hwmon_driver(struct device
+ 
+ 	rpi_hwmon = platform_device_register_data(dev, "raspberrypi-hwmon",
+ 						  -1, NULL, 0);
++
++	if (!IS_ERR_OR_NULL(rpi_hwmon)) {
++		if (devm_device_add_group(dev, &rpi_firmware_dev_group))
++			dev_err(dev, "Failed to create get_trottled attr\n");
++	}
+ }
+ 
+ static void rpi_register_clk_driver(struct device *dev)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0088-sc16is7xx-Don-t-spin-if-no-data-received.patch b/target/linux/bcm27xx/patches-5.10/950-0088-sc16is7xx-Don-t-spin-if-no-data-received.patch
new file mode 100644
index 0000000000..b14018d1b1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0088-sc16is7xx-Don-t-spin-if-no-data-received.patch
@@ -0,0 +1,23 @@
+From 0041d17ed3cd7e4ffc6168164c6020e5dcf7aeb4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 6 Nov 2018 12:57:48 +0000
+Subject: [PATCH] sc16is7xx: Don't spin if no data received
+
+See: https://github.com/raspberrypi/linux/issues/2676
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/tty/serial/sc16is7xx.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/tty/serial/sc16is7xx.c
++++ b/drivers/tty/serial/sc16is7xx.c
+@@ -696,6 +696,8 @@ static bool sc16is7xx_port_irq(struct sc
+ 			rxlen = sc16is7xx_port_read(port, SC16IS7XX_RXLVL_REG);
+ 			if (rxlen)
+ 				sc16is7xx_handle_rx(port, rxlen, iir);
++			else
++				return false;
+ 			break;
+ 		case SC16IS7XX_IIR_THRI_SRC:
+ 			sc16is7xx_handle_tx(port);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0089-drivers-thermal-step_wise-add-support-for-hysteresis.patch b/target/linux/bcm27xx/patches-5.10/950-0089-drivers-thermal-step_wise-add-support-for-hysteresis.patch
new file mode 100644
index 0000000000..2438e089cf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0089-drivers-thermal-step_wise-add-support-for-hysteresis.patch
@@ -0,0 +1,94 @@
+From 61e2e6bc4c30ceca12a917de93ffa9645e4944f7 Mon Sep 17 00:00:00 2001
+From: Ram Chandrasekar <rkumbako@codeaurora.org>
+Date: Mon, 7 May 2018 11:54:08 -0600
+Subject: [PATCH] drivers: thermal: step_wise: add support for
+ hysteresis
+
+Step wise governor increases the mitigation level when the temperature
+goes above a threshold and will decrease the mitigation when the
+temperature falls below the threshold. If it were a case, where the
+temperature hovers around a threshold, the mitigation will be applied
+and removed at every iteration. This reaction to the temperature is
+inefficient for performance.
+
+The use of hysteresis temperature could avoid this ping-pong of
+mitigation by relaxing the mitigation to happen only when the
+temperature goes below this lower hysteresis value.
+
+Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
+Signed-off-by: Lina Iyer <ilina@codeaurora.org>
+---
+ drivers/thermal/gov_step_wise.c | 33 +++++++++++++++++++++++----------
+ 1 file changed, 23 insertions(+), 10 deletions(-)
+
+--- a/drivers/thermal/gov_step_wise.c
++++ b/drivers/thermal/gov_step_wise.c
+@@ -24,7 +24,7 @@
+  *       for this trip point
+  *    d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit
+  *       for this trip point
+- * If the temperature is lower than a trip point,
++ * If the temperature is lower than a hysteresis temperature,
+  *    a. if the trend is THERMAL_TREND_RAISING, do nothing
+  *    b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
+  *       state for this trip point, if the cooling state already
+@@ -115,7 +115,7 @@ static void update_passive_instance(stru
+ 
+ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
+ {
+-	int trip_temp;
++	int trip_temp, hyst_temp;
+ 	enum thermal_trip_type trip_type;
+ 	enum thermal_trend trend;
+ 	struct thermal_instance *instance;
+@@ -123,22 +123,23 @@ static void thermal_zone_trip_update(str
+ 	int old_target;
+ 
+ 	if (trip == THERMAL_TRIPS_NONE) {
+-		trip_temp = tz->forced_passive;
++		hyst_temp = trip_temp = tz->forced_passive;
+ 		trip_type = THERMAL_TRIPS_NONE;
+ 	} else {
+ 		tz->ops->get_trip_temp(tz, trip, &trip_temp);
++		hyst_temp = trip_temp;
++		if (tz->ops->get_trip_hyst) {
++			tz->ops->get_trip_hyst(tz, trip, &hyst_temp);
++			hyst_temp = trip_temp - hyst_temp;
++		}
+ 		tz->ops->get_trip_type(tz, trip, &trip_type);
+ 	}
+ 
+ 	trend = get_tz_trend(tz, trip);
+ 
+-	if (tz->temperature >= trip_temp) {
+-		throttle = true;
+-		trace_thermal_zone_trip(tz, trip, trip_type);
+-	}
+-
+-	dev_dbg(&tz->device, "Trip%d[type=%d,temp=%d]:trend=%d,throttle=%d\n",
+-				trip, trip_type, trip_temp, trend, throttle);
++	dev_dbg(&tz->device,
++		"Trip%d[type=%d,temp=%d,hyst=%d]:trend=%d,throttle=%d\n",
++		trip, trip_type, trip_temp, hyst_temp, trend, throttle);
+ 
+ 	mutex_lock(&tz->lock);
+ 
+@@ -147,6 +148,18 @@ static void thermal_zone_trip_update(str
+ 			continue;
+ 
+ 		old_target = instance->target;
++		throttle = false;
++		/*
++		 * Lower the mitigation only if the temperature
++		 * goes below the hysteresis temperature.
++		 */
++		if (tz->temperature >= trip_temp ||
++		   (tz->temperature >= hyst_temp &&
++		   old_target != THERMAL_NO_TARGET)) {
++			throttle = true;
++			trace_thermal_zone_trip(tz, trip, trip_type);
++		}
++
+ 		instance->target = get_target_state(instance, trend, throttle);
+ 		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
+ 					old_target, (int)instance->target);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0090-drivers-thermal-step_wise-avoid-throttling-at-hyster.patch b/target/linux/bcm27xx/patches-5.10/950-0090-drivers-thermal-step_wise-avoid-throttling-at-hyster.patch
new file mode 100644
index 0000000000..2be7299e8c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0090-drivers-thermal-step_wise-avoid-throttling-at-hyster.patch
@@ -0,0 +1,22 @@
+From f220efa380854e2423a47f26acde9355ae016ea3 Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.org>
+Date: Tue, 2 Oct 2018 11:14:15 +0100
+Subject: [PATCH] drivers: thermal: step_wise: avoid throttling at
+ hysteresis temperature after dropping below it
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.org>
+---
+ drivers/thermal/gov_step_wise.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/thermal/gov_step_wise.c
++++ b/drivers/thermal/gov_step_wise.c
+@@ -155,7 +155,7 @@ static void thermal_zone_trip_update(str
+ 		 */
+ 		if (tz->temperature >= trip_temp ||
+ 		   (tz->temperature >= hyst_temp &&
+-		   old_target != THERMAL_NO_TARGET)) {
++		   old_target == instance->upper)) {
+ 			throttle = true;
+ 			trace_thermal_zone_trip(tz, trip, trip_type);
+ 		}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0091-Update-issue-templates-2736.patch b/target/linux/bcm27xx/patches-5.10/950-0091-Update-issue-templates-2736.patch
new file mode 100644
index 0000000000..a0f1f0e3eb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0091-Update-issue-templates-2736.patch
@@ -0,0 +1,47 @@
+From 87b9a65d3f7102400bff69dcc692d238fe1d6203 Mon Sep 17 00:00:00 2001
+From: James Hughes <JamesH65@users.noreply.github.com>
+Date: Fri, 2 Nov 2018 11:55:49 +0000
+Subject: [PATCH] Update issue templates (#2736)
+
+---
+ .github/ISSUE_TEMPLATE/bug_report.md | 34 ++++++++++++++++++++++++++++
+ 1 file changed, 34 insertions(+)
+ create mode 100644 .github/ISSUE_TEMPLATE/bug_report.md
+
+--- /dev/null
++++ b/.github/ISSUE_TEMPLATE/bug_report.md
+@@ -0,0 +1,34 @@
++---
++name: Bug report
++about: Create a report to help us fix your issue
++
++---
++
++**Is this the right place for my bug report?**
++This repository contains the Linux kernel used on the Raspberry Pi. If you believe that the issue you are seeing is kernel-related, this is the right place. If not, we have other repositories for the GPU firmware at [github.com/raspberrypi/firmware](https://github.com/raspberrypi/firmware) and Raspberry Pi userland applications at [github.com/raspberrypi/userland](https://github.com/raspberrypi/userland). If you have problems with the Raspbian distribution packages, report them in the [github.com/RPi-Distro/repo](https://github.com/RPi-Distro/repo). If you simply have a question, then [the Raspberry Pi forums](https://www.raspberrypi.org/forums) are the best place to ask it.
++
++**Describe the bug**
++Add a clear and concise description of what you think the bug is.
++
++**To reproduce**
++List the steps required to reproduce the issue.
++
++**Expected behaviour**
++Add a clear and concise description of what you expected to happen.
++
++**Actual behaviour**
++Add a clear and concise description of what actually happened.
++
++**System**
++ Copy and paste the results of the raspinfo command in to this section. Alternatively, copy and paste a pastebin link, or add answers to the following questions:
++
++* Which model of Raspberry Pi? e.g. Pi3B+, PiZeroW
++* Which OS and version (`cat /etc/rpi-issue`)?
++* Which firmware version (`vcgencmd version`)?
++* Which kernel version (`uname -a`)?
++
++**Logs**
++If applicable, add the relevant output from `dmesg` or similar.
++
++**Additional context**
++Add any other relevant context for the problem.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0092-net-lan78xx-Support-auto-downshift-to-100Mb-s.patch b/target/linux/bcm27xx/patches-5.10/950-0092-net-lan78xx-Support-auto-downshift-to-100Mb-s.patch
new file mode 100644
index 0000000000..925a81dc28
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0092-net-lan78xx-Support-auto-downshift-to-100Mb-s.patch
@@ -0,0 +1,91 @@
+From cbc38ebf8ff6d01cd11270d99762d4216ff4237d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 26 Nov 2018 19:46:58 +0000
+Subject: [PATCH] net: lan78xx: Support auto-downshift to 100Mb/s
+
+Ethernet cables with faulty or missing pairs (specifically pairs C and
+D) allow auto-negotiation to 1000Mbs, but do not support the successful
+establishment of a link. Add a DT property, "microchip,downshift-after",
+to configure the number of auto-negotiation failures after which it
+falls back to 100Mbs. Valid values are 2, 3, 4, 5 and 0, where 0 means
+never downshift.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ .../bindings/net/microchip,lan78xx.txt        |  3 +++
+ drivers/net/phy/microchip.c                   | 27 +++++++++++++++++++
+ include/linux/microchipphy.h                  |  8 ++++++
+ 3 files changed, 38 insertions(+)
+
+--- a/Documentation/devicetree/bindings/net/microchip,lan78xx.txt
++++ b/Documentation/devicetree/bindings/net/microchip,lan78xx.txt
+@@ -14,6 +14,9 @@ Optional properties of the embedded PHY:
+ - microchip,led-modes: a 0..4 element vector, with each element configuring
+   the operating mode of an LED. Omitted LEDs are turned off. Allowed values
+   are defined in "include/dt-bindings/net/microchip-lan78xx.h".
++- microchip,downshift-after: sets the number of failed auto-negotiation
++  attempts after which the link is downgraded from 1000BASE-T. Should be one of
++  2, 3, 4, 5 or 0, where 0 means never downshift.
+ 
+ Example:
+ 
+--- a/drivers/net/phy/microchip.c
++++ b/drivers/net/phy/microchip.c
+@@ -217,6 +217,7 @@ static int lan88xx_probe(struct phy_devi
+ 	struct device *dev = &phydev->mdio.dev;
+ 	struct lan88xx_priv *priv;
+ 	u32 led_modes[4];
++	u32 downshift_after = 0;
+ 	int len;
+ 
+ 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+@@ -246,6 +247,32 @@ static int lan88xx_probe(struct phy_devi
+ 		return -EINVAL;
+ 	}
+ 
++	if (!of_property_read_u32(dev->of_node,
++				  "microchip,downshift-after",
++				  &downshift_after)) {
++		u32 mask = LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_MASK;
++		u32 val= LAN78XX_PHY_CTRL3_AUTO_DOWNSHIFT;
++
++		switch (downshift_after) {
++		case 2:	val |= LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_2;
++			break;
++		case 3:	val |= LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_3;
++			break;
++		case 4:	val |= LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_4;
++			break;
++		case 5:	val |= LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_5;
++			break;
++		case 0: // Disable completely
++			mask = LAN78XX_PHY_CTRL3_AUTO_DOWNSHIFT;
++			val = 0;
++			break;
++		default:
++			return -EINVAL;
++		}
++		(void)phy_modify_paged(phydev, 1, LAN78XX_PHY_CTRL3,
++				       mask, val);
++	}
++
+ 	/* these values can be used to identify internal PHY */
+ 	priv->chip_id = phy_read_mmd(phydev, 3, LAN88XX_MMD3_CHIP_ID);
+ 	priv->chip_rev = phy_read_mmd(phydev, 3, LAN88XX_MMD3_CHIP_REV);
+--- a/include/linux/microchipphy.h
++++ b/include/linux/microchipphy.h
+@@ -61,6 +61,14 @@
+ /* Registers specific to the LAN7800/LAN7850 embedded phy */
+ #define LAN78XX_PHY_LED_MODE_SELECT		(0x1D)
+ 
++#define LAN78XX_PHY_CTRL3			(0x14)
++#define LAN78XX_PHY_CTRL3_AUTO_DOWNSHIFT	(0x0010)
++#define LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_MASK	(0x000c)
++#define LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_2	(0x0000)
++#define LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_3	(0x0004)
++#define LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_4	(0x0008)
++#define LAN78XX_PHY_CTRL3_DOWNSHIFT_CTRL_5	(0x000c)
++
+ /* DSP registers */
+ #define PHY_ARDENNES_MMD_DEV_3_PHY_CFG		(0x806A)
+ #define PHY_ARDENNES_MMD_DEV_3_PHY_CFG_ZD_DLY_EN_	(0x2000)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0093-firmware-raspberrypi-Report-the-fw-variant-during-pr.patch b/target/linux/bcm27xx/patches-5.10/950-0093-firmware-raspberrypi-Report-the-fw-variant-during-pr.patch
new file mode 100644
index 0000000000..64df0f7c7f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0093-firmware-raspberrypi-Report-the-fw-variant-during-pr.patch
@@ -0,0 +1,101 @@
+From ab759f3138e5ea798e93003e6ce0ffe66ac2970f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 10 Jan 2019 17:58:06 +0000
+Subject: [PATCH] firmware: raspberrypi: Report the fw variant during
+ probe
+
+The driver already reported the firmware build date during probe.
+The mailbox calls have been extended to also report the variant
+ 1 = standard start.elf
+ 2 = start_x.elf (includes camera stack)
+ 3 = start_db.elf (includes assert logging)
+ 4 = start_cd.elf (cutdown version for smallest memory footprint).
+Log the variant during probe.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+
+firmware: raspberrypi: Report the fw git hash during probe
+
+The firmware can now report the git hash from which it was built
+via the mailbox, so report it during probe.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/firmware/raspberrypi.c             | 40 +++++++++++++++++++++-
+ include/soc/bcm2835/raspberrypi-firmware.h |  2 ++
+ 2 files changed, 41 insertions(+), 1 deletion(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -231,6 +231,15 @@ rpi_firmware_print_firmware_revision(str
+ {
+ 	time64_t date_and_time;
+ 	u32 packet;
++	static const char * const variant_strs[] = {
++		"unknown",
++		"start",
++		"start_x",
++		"start_db",
++		"start_cd",
++	};
++	const char *variant_str = "cmd unsupported";
++	u32 variant;
+ 	int ret = rpi_firmware_property(fw,
+ 					RPI_FIRMWARE_GET_FIRMWARE_REVISION,
+ 					&packet, sizeof(packet));
+@@ -240,7 +249,35 @@ rpi_firmware_print_firmware_revision(str
+ 
+ 	/* This is not compatible with y2038 */
+ 	date_and_time = packet;
+-	dev_info(fw->cl.dev, "Attached to firmware from %ptT\n", &date_and_time);
++
++	ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_FIRMWARE_VARIANT,
++				    &variant, sizeof(variant));
++
++	if (!ret) {
++		if (variant >= ARRAY_SIZE(variant_strs))
++			variant = 0;
++		variant_str = variant_strs[variant];
++	}
++
++	dev_info(fw->cl.dev,
++		 "Attached to firmware from %ptT, variant %s\n",
++		 &date_and_time, variant_str);
++}
++
++static void
++rpi_firmware_print_firmware_hash(struct rpi_firmware *fw)
++{
++	u32 hash[5];
++	int ret = rpi_firmware_property(fw,
++					RPI_FIRMWARE_GET_FIRMWARE_HASH,
++					hash, sizeof(hash));
++
++	if (ret)
++		return;
++
++	dev_info(fw->cl.dev,
++		 "Firmware hash is %08x%08x%08x%08x%08x\n",
++		 hash[0], hash[1], hash[2], hash[3], hash[4]);
+ }
+ 
+ static void
+@@ -309,6 +346,7 @@ static int rpi_firmware_probe(struct pla
+ 	g_pdev = pdev;
+ 
+ 	rpi_firmware_print_firmware_revision(fw);
++	rpi_firmware_print_firmware_hash(fw);
+ 	rpi_register_hwmon_driver(dev, fw);
+ 	rpi_register_clk_driver(dev);
+ 
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -38,6 +38,8 @@ struct rpi_firmware_property_tag_header
+ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_PROPERTY_END =                           0,
+ 	RPI_FIRMWARE_GET_FIRMWARE_REVISION =                  0x00000001,
++	RPI_FIRMWARE_GET_FIRMWARE_VARIANT =                   0x00000002,
++	RPI_FIRMWARE_GET_FIRMWARE_HASH =                      0x00000003,
+ 
+ 	RPI_FIRMWARE_SET_CURSOR_INFO =                        0x00008010,
+ 	RPI_FIRMWARE_SET_CURSOR_STATE =                       0x00008011,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch b/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch
new file mode 100644
index 0000000000..4924ad59b1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0094-lan78xx-Debounce-link-events-to-minimize-poll-storm.patch
@@ -0,0 +1,45 @@
+From a242ba451fd64f0b9f07605ff0d8f6981aa6e955 Mon Sep 17 00:00:00 2001
+From: Joshua Emele <jemele@acm.org>
+Date: Wed, 7 Nov 2018 16:07:40 -0800
+Subject: [PATCH] lan78xx: Debounce link events to minimize poll storm
+
+The bInterval is set to 4 (i.e. 8 microframes => 1ms) and the only bit
+that the driver pays attention to is "link was reset". If there's a
+flapping status bit in that endpoint data, (such as if PHY negotiation
+needs a few tries to get a stable link) then polling at a slower rate
+would act as a de-bounce.
+
+See: https://github.com/raspberrypi/linux/issues/2447
+---
+ drivers/net/usb/lan78xx.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -434,6 +434,11 @@ static bool enable_tso;
+ module_param(enable_tso, bool, 0644);
+ MODULE_PARM_DESC(enable_tso, "Enables TCP segmentation offload");
+ 
++#define INT_URB_MICROFRAMES_PER_MS	8
++static int int_urb_interval_ms = 8;
++module_param(int_urb_interval_ms, int, 0);
++MODULE_PARM_DESC(int_urb_interval_ms, "Override usb interrupt urb interval");
++
+ static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data)
+ {
+ 	u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL);
+@@ -3760,7 +3765,13 @@ static int lan78xx_probe(struct usb_inte
+ 	netdev->max_mtu = MAX_SINGLE_PACKET_SIZE;
+ 	netif_set_gso_max_size(netdev, MAX_SINGLE_PACKET_SIZE - MAX_HEADER);
+ 
+-	period = ep_intr->desc.bInterval;
++	if (int_urb_interval_ms <= 0)
++		period = ep_intr->desc.bInterval;
++	else
++		period = int_urb_interval_ms * INT_URB_MICROFRAMES_PER_MS;
++
++	netif_notice(dev, probe, netdev, "int urb period %d\n", period);
++
+ 	maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0);
+ 	buf = kmalloc(maxp, GFP_KERNEL);
+ 	if (buf) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0095-lan78xx-EEE-support-is-now-a-PHY-property.patch b/target/linux/bcm27xx/patches-5.10/950-0095-lan78xx-EEE-support-is-now-a-PHY-property.patch
new file mode 100644
index 0000000000..bd5a604c2b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0095-lan78xx-EEE-support-is-now-a-PHY-property.patch
@@ -0,0 +1,26 @@
+From b65b1e498059fd4b6299c5327b2fccd002512dba Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 5 Mar 2019 09:51:22 +0000
+Subject: [PATCH] lan78xx: EEE support is now a PHY property
+
+Now that EEE support is a property of the PHY, use the PHY's DT node
+when querying the EEE-related properties.
+
+See: https://github.com/raspberrypi/linux/issues/2882
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -2172,7 +2172,7 @@ static int lan78xx_phy_init(struct lan78
+ 	mii_adv_to_linkmode_adv_t(fc, mii_adv);
+ 	linkmode_or(phydev->advertising, fc, phydev->advertising);
+ 
+-	if (of_property_read_bool(dev->udev->dev.of_node,
++	if (of_property_read_bool(phydev->mdio.dev.of_node,
+ 				  "microchip,eee-enabled")) {
+ 		struct ethtool_eee edata;
+ 		memset(&edata, 0, sizeof(edata));
diff --git a/target/linux/bcm27xx/patches-5.10/950-0096-bcm2835-dma-Add-support-for-per-channel-flags.patch b/target/linux/bcm27xx/patches-5.10/950-0096-bcm2835-dma-Add-support-for-per-channel-flags.patch
new file mode 100644
index 0000000000..160985de0a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0096-bcm2835-dma-Add-support-for-per-channel-flags.patch
@@ -0,0 +1,48 @@
+From 1a8d5b7b7503bddd1a78130e2317d16b80fe8cda Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 20 Jul 2018 22:03:41 +0100
+Subject: [PATCH] bcm2835-dma: Add support for per-channel flags
+
+Add the ability to interpret the high bits of the dreq specifier as
+flags to be included in the DMA_CS register. The motivation for this
+change is the ability to set the DISDEBUG flag for SD card transfers
+to avoid corruption when using the VPU debugger.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/dma/bcm2835-dma.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -139,6 +139,10 @@ struct bcm2835_desc {
+ #define BCM2835_DMA_S_DREQ	BIT(10) /* enable SREQ for source */
+ #define BCM2835_DMA_S_IGNORE	BIT(11) /* ignore source reads - read 0 */
+ #define BCM2835_DMA_BURST_LENGTH(x) ((x & 15) << 12)
++#define BCM2835_DMA_CS_FLAGS(x) (x & (BCM2835_DMA_PRIORITY(15) | \
++				      BCM2835_DMA_PANIC_PRIORITY(15) | \
++				      BCM2835_DMA_WAIT_FOR_WRITES | \
++				      BCM2835_DMA_DIS_DEBUG))
+ #define BCM2835_DMA_PER_MAP(x)	((x & 31) << 16) /* REQ source */
+ #define BCM2835_DMA_WAIT(x)	((x & 31) << 21) /* add DMA-wait cycles */
+ #define BCM2835_DMA_NO_WIDE_BURSTS BIT(26) /* no 2 beat write bursts */
+@@ -452,7 +456,8 @@ static void bcm2835_dma_start_desc(struc
+ 	c->desc = d = to_bcm2835_dma_desc(&vd->tx);
+ 
+ 	writel(d->cb_list[0].paddr, c->chan_base + BCM2835_DMA_ADDR);
+-	writel(BCM2835_DMA_ACTIVE, c->chan_base + BCM2835_DMA_CS);
++	writel(BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
++	       c->chan_base + BCM2835_DMA_CS);
+ }
+ 
+ static irqreturn_t bcm2835_dma_callback(int irq, void *data)
+@@ -479,7 +484,8 @@ static irqreturn_t bcm2835_dma_callback(
+ 	 * if this IRQ handler is threaded.) If the channel is finished, it
+ 	 * will remain idle despite the ACTIVE flag being set.
+ 	 */
+-	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
++	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE |
++	       BCM2835_DMA_CS_FLAGS(c->dreq),
+ 	       c->chan_base + BCM2835_DMA_CS);
+ 
+ 	d = c->desc;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0097-rtc-rv3028-Add-backup-switchover-mode-support.patch b/target/linux/bcm27xx/patches-5.10/950-0097-rtc-rv3028-Add-backup-switchover-mode-support.patch
new file mode 100644
index 0000000000..5e27db1655
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0097-rtc-rv3028-Add-backup-switchover-mode-support.patch
@@ -0,0 +1,50 @@
+From 4aefed16e3964d161d32a4f25db849ac16046b13 Mon Sep 17 00:00:00 2001
+From: Phil Howard <phil@gadgetoid.com>
+Date: Fri, 29 Mar 2019 10:53:14 +0000
+Subject: [PATCH] rtc: rv3028: Add backup switchover mode support
+
+Signed-off-by: Phil Howard <phil@pimoroni.com>
+---
+ drivers/rtc/rtc-rv3028.c | 17 +++++++++++++++++
+ 1 file changed, 17 insertions(+)
+
+--- a/drivers/rtc/rtc-rv3028.c
++++ b/drivers/rtc/rtc-rv3028.c
+@@ -80,6 +80,7 @@
+ 
+ #define RV3028_BACKUP_TCE		BIT(5)
+ #define RV3028_BACKUP_TCR_MASK		GENMASK(1,0)
++#define RV3028_BACKUP_BSM_MASK		0x0C
+ 
+ #define OFFSET_STEP_PPT			953674
+ 
+@@ -789,6 +790,7 @@ static int rv3028_probe(struct i2c_clien
+ 	struct rv3028_data *rv3028;
+ 	int ret, status;
+ 	u32 ohms;
++	u8 bsm;
+ 	struct nvmem_config nvmem_cfg = {
+ 		.name = "rv3028_nvram",
+ 		.word_size = 1,
+@@ -860,6 +862,21 @@ static int rv3028_probe(struct i2c_clien
+ 	if (ret)
+ 		return ret;
+ 
++	/* setup backup switchover mode */
++	if (!device_property_read_u8(&client->dev, "backup-switchover-mode",
++				     &bsm))  {
++		if (bsm <= 3) {
++			ret = regmap_update_bits(rv3028->regmap, RV3028_BACKUP,
++				RV3028_BACKUP_BSM_MASK,
++				(bsm & 0x03) << 2);
++
++			if (ret)
++				return ret;
++		} else {
++			dev_warn(&client->dev, "invalid backup switchover mode value\n");
++		}
++	}
++
+ 	/* setup trickle charger */
+ 	if (!device_property_read_u32(&client->dev, "trickle-resistor-ohms",
+ 				      &ohms)) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0098-lan78xx-use-default-alignment-for-rx-buffers.patch b/target/linux/bcm27xx/patches-5.10/950-0098-lan78xx-use-default-alignment-for-rx-buffers.patch
new file mode 100644
index 0000000000..33ea06c51e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0098-lan78xx-use-default-alignment-for-rx-buffers.patch
@@ -0,0 +1,23 @@
+From 4c5342c2a4e2d7fe05d16795e308221b786e862e Mon Sep 17 00:00:00 2001
+From: P33M <p33m@github.com>
+Date: Thu, 2 May 2019 11:53:45 +0100
+Subject: [PATCH] lan78xx: use default alignment for rx buffers
+
+The lan78xx uses a 12-byte hardware rx header, so there is no need
+to allocate SKBs with NET_IP_ALIGN set. Removes alignment faults
+in both dwc_otg and in ipv6 processing.
+---
+ drivers/net/usb/lan78xx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -3161,7 +3161,7 @@ static int rx_submit(struct lan78xx_net
+ 	size_t size = dev->rx_urb_size;
+ 	int ret = 0;
+ 
+-	skb = netdev_alloc_skb_ip_align(dev->net, size);
++	skb = netdev_alloc_skb(dev->net, size);
+ 	if (!skb) {
+ 		usb_free_urb(urb);
+ 		return -ENOMEM;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0099-media-ov5647-Add-set_fmt-and-get_fmt-calls.patch b/target/linux/bcm27xx/patches-5.10/950-0099-media-ov5647-Add-set_fmt-and-get_fmt-calls.patch
new file mode 100644
index 0000000000..df4b83ad0a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0099-media-ov5647-Add-set_fmt-and-get_fmt-calls.patch
@@ -0,0 +1,47 @@
+From 3774310df4996e7ce45854ddb47a6cf969295f9d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:55:37 +0000
+Subject: [PATCH] media: ov5647: Add set_fmt and get_fmt calls.
+
+There's no way to query the subdevice for the supported
+resolutions.
+Add set_fmt and get_fmt implementations.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/ov5647.c | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -463,8 +463,30 @@ static int ov5647_enum_mbus_code(struct
+ 	return 0;
+ }
+ 
++static int ov5647_set_get_fmt(struct v4l2_subdev *sd,
++			      struct v4l2_subdev_pad_config *cfg,
++			      struct v4l2_subdev_format *format)
++{
++	struct v4l2_mbus_framefmt *fmt = &format->format;
++
++	if (format->pad != 0)
++		return -EINVAL;
++
++	/* Only one format is supported, so return that */
++	memset(fmt, 0, sizeof(*fmt));
++	fmt->code = MEDIA_BUS_FMT_SBGGR8_1X8;
++	fmt->colorspace = V4L2_COLORSPACE_SRGB;
++	fmt->field = V4L2_FIELD_NONE;
++	fmt->width = 640;
++	fmt->height = 480;
++
++	return 0;
++}
++
+ static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = {
+ 	.enum_mbus_code = ov5647_enum_mbus_code,
++	.set_fmt =	  ov5647_set_get_fmt,
++	.get_fmt =	  ov5647_set_get_fmt,
+ };
+ 
+ static const struct v4l2_subdev_ops ov5647_subdev_ops = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0100-media-ov5647-Add-support-for-PWDN-GPIO.patch b/target/linux/bcm27xx/patches-5.10/950-0100-media-ov5647-Add-support-for-PWDN-GPIO.patch
new file mode 100644
index 0000000000..13bcb78aac
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0100-media-ov5647-Add-support-for-PWDN-GPIO.patch
@@ -0,0 +1,92 @@
+From 4b8d9d9c7f6d8f863669ce97ac299ca542ad6ecc Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:56:33 +0000
+Subject: [PATCH] media: ov5647: Add support for PWDN GPIO.
+
+Add support for an optional GPIO connected to PWDN on the sensor.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/ov5647.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -21,6 +21,7 @@
+ 
+ #include <linux/clk.h>
+ #include <linux/delay.h>
++#include <linux/gpio/consumer.h>
+ #include <linux/i2c.h>
+ #include <linux/init.h>
+ #include <linux/io.h>
+@@ -35,6 +36,13 @@
+ 
+ #define SENSOR_NAME "ov5647"
+ 
++/*
++ * From the datasheet, "20ms after PWDN goes low or 20ms after RESETB goes
++ * high if reset is inserted after PWDN goes high, host can access sensor's
++ * SCCB to initialize sensor."
++ */
++#define PWDN_ACTIVE_DELAY_MS	20
++
+ #define MIPI_CTRL00_CLOCK_LANE_GATE		BIT(5)
+ #define MIPI_CTRL00_BUS_IDLE			BIT(2)
+ #define MIPI_CTRL00_CLOCK_LANE_DISABLE		BIT(0)
+@@ -86,6 +94,7 @@ struct ov5647 {
+ 	unsigned int			height;
+ 	int				power_count;
+ 	struct clk			*xclk;
++	struct gpio_desc		*pwdn;
+ };
+ 
+ static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
+@@ -355,6 +364,11 @@ static int ov5647_sensor_power(struct v4
+ 	if (on && !ov5647->power_count)	{
+ 		dev_dbg(&client->dev, "OV5647 power on\n");
+ 
++		if (ov5647->pwdn) {
++			gpiod_set_value(ov5647->pwdn, 0);
++			msleep(PWDN_ACTIVE_DELAY_MS);
++		}
++
+ 		ret = clk_prepare_enable(ov5647->xclk);
+ 		if (ret < 0) {
+ 			dev_err(&client->dev, "clk prepare enable failed\n");
+@@ -392,6 +406,8 @@ static int ov5647_sensor_power(struct v4
+ 			dev_dbg(&client->dev, "soft stby failed\n");
+ 
+ 		clk_disable_unprepare(ov5647->xclk);
++
++		gpiod_set_value(ov5647->pwdn, 1);
+ 	}
+ 
+ 	/* Update the power count. */
+@@ -603,6 +619,10 @@ static int ov5647_probe(struct i2c_clien
+ 		return -EINVAL;
+ 	}
+ 
++	/* Request the power down GPIO asserted */
++	sensor->pwdn = devm_gpiod_get_optional(&client->dev, "pwdn",
++					       GPIOD_OUT_HIGH);
++
+ 	mutex_init(&sensor->lock);
+ 
+ 	sd = &sensor->sd;
+@@ -616,7 +636,15 @@ static int ov5647_probe(struct i2c_clien
+ 	if (ret < 0)
+ 		goto mutex_remove;
+ 
++	if (sensor->pwdn) {
++		gpiod_set_value(sensor->pwdn, 0);
++		msleep(PWDN_ACTIVE_DELAY_MS);
++	}
++
+ 	ret = ov5647_detect(sd);
++
++	gpiod_set_value(sensor->pwdn, 1);
++
+ 	if (ret < 0)
+ 		goto error;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0101-media-ov5647-Add-support-for-non-continuous-clock-mo.patch b/target/linux/bcm27xx/patches-5.10/950-0101-media-ov5647-Add-support-for-non-continuous-clock-mo.patch
new file mode 100644
index 0000000000..364d3c53ea
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0101-media-ov5647-Add-support-for-non-continuous-clock-mo.patch
@@ -0,0 +1,79 @@
+From f8ae99474d8555a30615db821c180a7d56b2e73c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:56:47 +0000
+Subject: [PATCH] media: ov5647: Add support for non-continuous clock
+ mode
+
+The driver was only supporting continuous clock mode
+although this was not stated anywhere.
+Non-continuous clock saves a small amount of power and
+on some SoCs is easier to interface with.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/ov5647.c | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -44,6 +44,7 @@
+ #define PWDN_ACTIVE_DELAY_MS	20
+ 
+ #define MIPI_CTRL00_CLOCK_LANE_GATE		BIT(5)
++#define MIPI_CTRL00_LINE_SYNC_ENABLE		BIT(4)
+ #define MIPI_CTRL00_BUS_IDLE			BIT(2)
+ #define MIPI_CTRL00_CLOCK_LANE_DISABLE		BIT(0)
+ 
+@@ -95,6 +96,7 @@ struct ov5647 {
+ 	int				power_count;
+ 	struct clk			*xclk;
+ 	struct gpio_desc		*pwdn;
++	unsigned int			flags;
+ };
+ 
+ static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
+@@ -269,9 +271,15 @@ static int ov5647_set_virtual_channel(st
+ 
+ static int ov5647_stream_on(struct v4l2_subdev *sd)
+ {
++	struct ov5647 *ov5647 = to_state(sd);
++	u8 val = MIPI_CTRL00_BUS_IDLE;
+ 	int ret;
+ 
+-	ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, MIPI_CTRL00_BUS_IDLE);
++	if (ov5647->flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)
++		val |= MIPI_CTRL00_CLOCK_LANE_GATE |
++		       MIPI_CTRL00_LINE_SYNC_ENABLE;
++
++	ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, val);
+ 	if (ret < 0)
+ 		return ret;
+ 
+@@ -568,7 +576,7 @@ static const struct v4l2_subdev_internal
+ 	.open = ov5647_open,
+ };
+ 
+-static int ov5647_parse_dt(struct device_node *np)
++static int ov5647_parse_dt(struct device_node *np, struct ov5647 *sensor)
+ {
+ 	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
+ 	struct device_node *ep;
+@@ -581,6 +589,9 @@ static int ov5647_parse_dt(struct device
+ 
+ 	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
+ 
++	if (!ret)
++		sensor->flags = bus_cfg.bus.mipi_csi2.flags;
++
+ 	of_node_put(ep);
+ 	return ret;
+ }
+@@ -599,7 +610,7 @@ static int ov5647_probe(struct i2c_clien
+ 		return -ENOMEM;
+ 
+ 	if (IS_ENABLED(CONFIG_OF) && np) {
+-		ret = ov5647_parse_dt(np);
++		ret = ov5647_parse_dt(np, sensor);
+ 		if (ret) {
+ 			dev_err(dev, "DT parsing error: %d\n", ret);
+ 			return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0102-media-tc358743-Increase-FIFO-level-to-374.patch b/target/linux/bcm27xx/patches-5.10/950-0102-media-tc358743-Increase-FIFO-level-to-374.patch
new file mode 100644
index 0000000000..b21586d4fc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0102-media-tc358743-Increase-FIFO-level-to-374.patch
@@ -0,0 +1,31 @@
+From 5dc4761b56cbb0f3aa64e23affd2a65b9b7c350a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:56:59 +0000
+Subject: [PATCH] media: tc358743: Increase FIFO level to 374.
+
+The existing fixed value of 16 worked for UYVY 720P60 over
+2 lanes at 594MHz, or UYVY 1080P60 over 4 lanes. (RGB888
+1080P60 needs 6 lanes at 594MHz).
+It doesn't allow for lower resolutions to work as the FIFO
+underflows.
+
+374 is required for 1080P24-30 UYVY over 2 lanes @ 972Mbit/s, but
+>374 means that the FIFO underflows on 1080P50 UYVY over 2 lanes
+@ 972Mbit/s.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/tc358743.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -1950,7 +1950,7 @@ static int tc358743_probe_of(struct tc35
+ 	state->pdata.ddc5v_delay = DDC5V_DELAY_100_MS;
+ 	state->pdata.enable_hdcp = false;
+ 	/* A FIFO level of 16 should be enough for 2-lane 720p60 at 594 MHz. */
+-	state->pdata.fifo_level = 16;
++	state->pdata.fifo_level = 374;
+ 	/*
+ 	 * The PLL input clock is obtained by dividing refclk by pll_prd.
+ 	 * It must be between 6 MHz and 40 MHz, lower frequency is better.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0103-media-tc358743-fix-connected-active-CSI-2-lane-repor.patch b/target/linux/bcm27xx/patches-5.10/950-0103-media-tc358743-fix-connected-active-CSI-2-lane-repor.patch
new file mode 100644
index 0000000000..6f876c4248
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0103-media-tc358743-fix-connected-active-CSI-2-lane-repor.patch
@@ -0,0 +1,74 @@
+From 5bc5749e4350a09d7b76c84513908f35455b25f1 Mon Sep 17 00:00:00 2001
+From: Philipp Zabel <p.zabel@pengutronix.de>
+Date: Thu, 21 Sep 2017 17:30:24 +0200
+Subject: [PATCH] media: tc358743: fix connected/active CSI-2 lane
+ reporting
+
+g_mbus_config was supposed to indicate all supported lane numbers, not
+only the number of those currently in active use. Since the TC358743
+can dynamically reduce the number of active lanes if the required
+bandwidth allows for it, report all lane numbers up to the connected
+number of lanes as supported in pdata mode.
+In device tree mode, do not report lane count and clock mode at all, as
+the receiver driver can determine these from the device tree.
+
+To allow communicating the number of currently active lanes, add a new
+bitfield to the v4l2_mbus_config flags. This is a temporary fix, to be
+used only until a better solution is found.
+
+Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
+---
+ drivers/media/i2c/tc358743.c  | 14 ++++++++++++--
+ include/media/v4l2-mediabus.h |  8 ++++++++
+ 2 files changed, 20 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -1609,11 +1609,20 @@ static int tc358743_get_mbus_config(stru
+ 				    struct v4l2_mbus_config *cfg)
+ {
+ 	struct tc358743_state *state = to_state(sd);
++	const u32 mask = V4L2_MBUS_CSI2_LANE_MASK;
++
++	if (state->csi_lanes_in_use > state->bus.num_data_lanes)
++		return -EINVAL;
+ 
+ 	cfg->type = V4L2_MBUS_CSI2_DPHY;
++	cfg->flags = (state->csi_lanes_in_use << __ffs(mask)) & mask;
++
++	/* In DT mode, only report the number of active lanes */
++	if (sd->dev->of_node)
++		return 0;
+ 
+-	/* Support for non-continuous CSI-2 clock is missing in the driver */
+-	cfg->flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
++	/* Support for non-continuous CSI-2 clock is missing in pdate mode */
++	cfg->flags |= V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
+ 
+ 	switch (state->csi_lanes_in_use) {
+ 	case 1:
+@@ -2056,6 +2065,7 @@ static int tc358743_probe(struct i2c_cli
+ 	if (pdata) {
+ 		state->pdata = *pdata;
+ 		state->bus.flags = V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
++		state->bus.num_data_lanes = 4;
+ 	} else {
+ 		err = tc358743_probe_of(state);
+ 		if (err == -ENODEV)
+--- a/include/media/v4l2-mediabus.h
++++ b/include/media/v4l2-mediabus.h
+@@ -92,6 +92,14 @@
+ 					 V4L2_MBUS_CSI2_CHANNEL_1 | \
+ 					 V4L2_MBUS_CSI2_CHANNEL_2 | \
+ 					 V4L2_MBUS_CSI2_CHANNEL_3)
++/*
++ * Number of lanes in use, 0 == use all available lanes (default)
++ *
++ * This is a temporary fix for devices that need to reduce the number of active
++ * lanes for certain modes, until g_mbus_config() can be replaced with a better
++ * solution.
++ */
++#define V4L2_MBUS_CSI2_LANE_MASK                (0xf << 10)
+ 
+ /**
+  * enum v4l2_mbus_type - media bus type
diff --git a/target/linux/bcm27xx/patches-5.10/950-0104-media-tc358743-Add-support-for-972Mbit-s-link-freq.patch b/target/linux/bcm27xx/patches-5.10/950-0104-media-tc358743-Add-support-for-972Mbit-s-link-freq.patch
new file mode 100644
index 0000000000..81274adca8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0104-media-tc358743-Add-support-for-972Mbit-s-link-freq.patch
@@ -0,0 +1,79 @@
+From 216cd49e1af96bc615a36cddfad7b5a05e1f7ca2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:57:21 +0000
+Subject: [PATCH] media: tc358743: Add support for 972Mbit/s link freq.
+
+Adds register setups for running the CSI lanes at 972Mbit/s,
+which allows 1080P50 UYVY down 2 lanes.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/tc358743.c | 47 +++++++++++++++++++++++++-----------
+ 1 file changed, 33 insertions(+), 14 deletions(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -1979,6 +1979,7 @@ static int tc358743_probe_of(struct tc35
+ 	/*
+ 	 * The CSI bps per lane must be between 62.5 Mbps and 1 Gbps.
+ 	 * The default is 594 Mbps for 4-lane 1080p60 or 2-lane 720p60.
++	 * 972 Mbps allows 1080P50 UYVY over 2-lane.
+ 	 */
+ 	bps_pr_lane = 2 * endpoint.link_frequencies[0];
+ 	if (bps_pr_lane < 62500000U || bps_pr_lane > 1000000000U) {
+@@ -1992,23 +1993,41 @@ static int tc358743_probe_of(struct tc35
+ 			       state->pdata.refclk_hz * state->pdata.pll_prd;
+ 
+ 	/*
+-	 * FIXME: These timings are from REF_02 for 594 Mbps per lane (297 MHz
+-	 * link frequency). In principle it should be possible to calculate
++	 * FIXME: These timings are from REF_02 for 594 or 972 Mbps per lane
++	 * (297 MHz or 486 MHz link frequency).
++	 * In principle it should be possible to calculate
+ 	 * them based on link frequency and resolution.
+ 	 */
+-	if (bps_pr_lane != 594000000U)
++	switch (bps_pr_lane) {
++	default:
+ 		dev_warn(dev, "untested bps per lane: %u bps\n", bps_pr_lane);
+-	state->pdata.lineinitcnt = 0xe80;
+-	state->pdata.lptxtimecnt = 0x003;
+-	/* tclk-preparecnt: 3, tclk-zerocnt: 20 */
+-	state->pdata.tclk_headercnt = 0x1403;
+-	state->pdata.tclk_trailcnt = 0x00;
+-	/* ths-preparecnt: 3, ths-zerocnt: 1 */
+-	state->pdata.ths_headercnt = 0x0103;
+-	state->pdata.twakeup = 0x4882;
+-	state->pdata.tclk_postcnt = 0x008;
+-	state->pdata.ths_trailcnt = 0x2;
+-	state->pdata.hstxvregcnt = 0;
++	case 594000000U:
++		state->pdata.lineinitcnt = 0xe80;
++		state->pdata.lptxtimecnt = 0x003;
++		/* tclk-preparecnt: 3, tclk-zerocnt: 20 */
++		state->pdata.tclk_headercnt = 0x1403;
++		state->pdata.tclk_trailcnt = 0x00;
++		/* ths-preparecnt: 3, ths-zerocnt: 1 */
++		state->pdata.ths_headercnt = 0x0103;
++		state->pdata.twakeup = 0x4882;
++		state->pdata.tclk_postcnt = 0x008;
++		state->pdata.ths_trailcnt = 0x2;
++		state->pdata.hstxvregcnt = 0;
++		break;
++	case 972000000U:
++		state->pdata.lineinitcnt = 0x1b58;
++		state->pdata.lptxtimecnt = 0x007;
++		/* tclk-preparecnt: 6, tclk-zerocnt: 40 */
++		state->pdata.tclk_headercnt = 0x2806;
++		state->pdata.tclk_trailcnt = 0x00;
++		/* ths-preparecnt: 6, ths-zerocnt: 8 */
++		state->pdata.ths_headercnt = 0x0806;
++		state->pdata.twakeup = 0x4268;
++		state->pdata.tclk_postcnt = 0x008;
++		state->pdata.ths_trailcnt = 0x5;
++		state->pdata.hstxvregcnt = 0;
++		break;
++	}
+ 
+ 	state->reset_gpio = devm_gpiod_get_optional(dev, "reset",
+ 						    GPIOD_OUT_LOW);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0105-media-tc358743-Check-I2C-succeeded-during-probe.patch b/target/linux/bcm27xx/patches-5.10/950-0105-media-tc358743-Check-I2C-succeeded-during-probe.patch
new file mode 100644
index 0000000000..f26eb80a8f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0105-media-tc358743-Check-I2C-succeeded-during-probe.patch
@@ -0,0 +1,98 @@
+From 58993b47c141a2e0cd57e4b62ae8d07a149a815f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:57:34 +0000
+Subject: [PATCH] media: tc358743: Check I2C succeeded during probe.
+
+The probe for the TC358743 reads the CHIPID register from
+the device and compares it to the expected value of 0.
+If the I2C request fails then that also returns 0, so
+the driver loads thinking that the device is there.
+
+Generally I2C communications are reliable so there is
+limited need to check the return value on every transfer,
+therefore only amend the one read during probe to check
+for I2C errors.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/tc358743.c | 27 +++++++++++++++++++++++----
+ 1 file changed, 23 insertions(+), 4 deletions(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -110,7 +110,7 @@ static inline struct tc358743_state *to_
+ 
+ /* --------------- I2C --------------- */
+ 
+-static void i2c_rd(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n)
++static int i2c_rd(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n)
+ {
+ 	struct tc358743_state *state = to_state(sd);
+ 	struct i2c_client *client = state->i2c_client;
+@@ -136,6 +136,7 @@ static void i2c_rd(struct v4l2_subdev *s
+ 		v4l2_err(sd, "%s: reading register 0x%x from 0x%x failed\n",
+ 				__func__, reg, client->addr);
+ 	}
++	return err != ARRAY_SIZE(msgs);
+ }
+ 
+ static void i2c_wr(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n)
+@@ -192,15 +193,24 @@ static void i2c_wr(struct v4l2_subdev *s
+ 	}
+ }
+ 
+-static noinline u32 i2c_rdreg(struct v4l2_subdev *sd, u16 reg, u32 n)
++static noinline u32 i2c_rdreg_err(struct v4l2_subdev *sd, u16 reg, u32 n,
++				  int *err)
+ {
++	int error;
+ 	__le32 val = 0;
+ 
+-	i2c_rd(sd, reg, (u8 __force *)&val, n);
++	error = i2c_rd(sd, reg, (u8 __force *)&val, n);
++	if (err)
++		*err = error;
+ 
+ 	return le32_to_cpu(val);
+ }
+ 
++static inline u32 i2c_rdreg(struct v4l2_subdev *sd, u16 reg, u32 n)
++{
++	return i2c_rdreg_err(sd, reg, n, NULL);
++}
++
+ static noinline void i2c_wrreg(struct v4l2_subdev *sd, u16 reg, u32 val, u32 n)
+ {
+ 	__le32 raw = cpu_to_le32(val);
+@@ -229,6 +239,13 @@ static u16 i2c_rd16(struct v4l2_subdev *
+ 	return i2c_rdreg(sd, reg, 2);
+ }
+ 
++static int i2c_rd16_err(struct v4l2_subdev *sd, u16 reg, u16 *value)
++{
++	int err;
++	*value = i2c_rdreg_err(sd, reg, 2, &err);
++	return err;
++}
++
+ static void i2c_wr16(struct v4l2_subdev *sd, u16 reg, u16 val)
+ {
+ 	i2c_wrreg(sd, reg, val, 2);
+@@ -2066,6 +2083,7 @@ static int tc358743_probe(struct i2c_cli
+ 	struct tc358743_platform_data *pdata = client->dev.platform_data;
+ 	struct v4l2_subdev *sd;
+ 	u16 irq_mask = MASK_HDMI_MSK | MASK_CSI_MSK;
++	u16 chipid;
+ 	int err;
+ 
+ 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+@@ -2098,7 +2116,8 @@ static int tc358743_probe(struct i2c_cli
+ 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+ 
+ 	/* i2c access */
+-	if ((i2c_rd16(sd, CHIPID) & MASK_CHIPID) != 0) {
++	if (i2c_rd16_err(sd, CHIPID, &chipid) ||
++	    (chipid & MASK_CHIPID) != 0) {
+ 		v4l2_info(sd, "not a TC358743 on address 0x%x\n",
+ 			  client->addr << 1);
+ 		return -ENODEV;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0106-media-adv7180-Default-to-the-first-valid-input.patch b/target/linux/bcm27xx/patches-5.10/950-0106-media-adv7180-Default-to-the-first-valid-input.patch
new file mode 100644
index 0000000000..bd4b418511
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0106-media-adv7180-Default-to-the-first-valid-input.patch
@@ -0,0 +1,45 @@
+From 461de95d791044faba914125a418cd9141a39f02 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:57:46 +0000
+Subject: [PATCH] media: adv7180: Default to the first valid input
+
+The hardware default is differential CVBS on AIN1 & 2, which
+isn't very useful.
+
+Select the first input that is defined as valid for the
+chip variant (typically CVBS_AIN1).
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/adv7180.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/drivers/media/i2c/adv7180.c
++++ b/drivers/media/i2c/adv7180.c
+@@ -1259,6 +1259,7 @@ static const struct adv7180_chip_info ad
+ static int init_device(struct adv7180_state *state)
+ {
+ 	int ret;
++	int i;
+ 
+ 	mutex_lock(&state->mutex);
+ 
+@@ -1305,6 +1306,18 @@ static int init_device(struct adv7180_st
+ 			goto out_unlock;
+ 	}
+ 
++	/* Select first valid input */
++	for (i = 0; i < 32; i++) {
++		if (BIT(i) & state->chip_info->valid_input_mask) {
++			ret = state->chip_info->select_input(state, i);
++
++			if (ret == 0) {
++				state->input = i;
++				break;
++			}
++		}
++	}
++
+ out_unlock:
+ 	mutex_unlock(&state->mutex);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0107-media-adv7180-Add-YPrPb-support-for-ADV7282M.patch b/target/linux/bcm27xx/patches-5.10/950-0107-media-adv7180-Add-YPrPb-support-for-ADV7282M.patch
new file mode 100644
index 0000000000..ad26dde112
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0107-media-adv7180-Add-YPrPb-support-for-ADV7282M.patch
@@ -0,0 +1,24 @@
+From befd41654ff575e9ceb699ed03d1b893bbe88867 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:57:56 +0000
+Subject: [PATCH] media: adv7180: Add YPrPb support for ADV7282M
+
+The ADV7282M can support YPbPr on AIN1-3, but this was
+not selectable from the driver. Add it to the list of
+supported input modes.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/adv7180.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/i2c/adv7180.c
++++ b/drivers/media/i2c/adv7180.c
+@@ -1248,6 +1248,7 @@ static const struct adv7180_chip_info ad
+ 		BIT(ADV7182_INPUT_SVIDEO_AIN1_AIN2) |
+ 		BIT(ADV7182_INPUT_SVIDEO_AIN3_AIN4) |
+ 		BIT(ADV7182_INPUT_SVIDEO_AIN7_AIN8) |
++		BIT(ADV7182_INPUT_YPRPB_AIN1_AIN2_AIN3) |
+ 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN1_AIN2) |
+ 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN3_AIN4) |
+ 		BIT(ADV7182_INPUT_DIFF_CVBS_AIN7_AIN8),
diff --git a/target/linux/bcm27xx/patches-5.10/950-0108-media-videodev2-Add-helper-defines-for-printing-FOUR.patch b/target/linux/bcm27xx/patches-5.10/950-0108-media-videodev2-Add-helper-defines-for-printing-FOUR.patch
new file mode 100644
index 0000000000..8fd25d4afa
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0108-media-videodev2-Add-helper-defines-for-printing-FOUR.patch
@@ -0,0 +1,28 @@
+From 460f1e1402d28105f9f3d6e8b8739dcd89bff18e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:58:08 +0000
+Subject: [PATCH] media: videodev2: Add helper defines for printing
+ FOURCCs
+
+New helper defines that allow printing of a FOURCC using
+printf(V4L2_FOURCC_CONV, V4L2_FOURCC_CONV_ARGS(fourcc));
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ include/uapi/linux/videodev2.h | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -82,6 +82,11 @@
+ 	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
+ #define v4l2_fourcc_be(a, b, c, d)	(v4l2_fourcc(a, b, c, d) | (1U << 31))
+ 
++#define V4L2_FOURCC_CONV "%c%c%c%c%s"
++#define V4L2_FOURCC_CONV_ARGS(fourcc) \
++	(fourcc) & 0x7f, ((fourcc) >> 8) & 0x7f, ((fourcc) >> 16) & 0x7f, \
++	((fourcc) >> 24) & 0x7f, (fourcc) & BIT(31) ? "-BE" : ""
++
+ /*
+  *	E N U M S
+  */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0109-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch b/target/linux/bcm27xx/patches-5.10/950-0109-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch
new file mode 100644
index 0000000000..2f5d9a8599
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0109-dt-bindings-Document-BCM283x-CSI2-CCP2-receiver.patch
@@ -0,0 +1,103 @@
+From f62b05e593e28e7ed00d25318bd301bb5470de63 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:59:06 +0000
+Subject: [PATCH] dt-bindings: Document BCM283x CSI2/CCP2 receiver
+
+Document the DT bindings for the CSI2/CCP2 receiver peripheral
+(known as Unicam) on BCM283x SoCs.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Acked-by: Rob Herring <robh@kernel.org>
+---
+ .../bindings/media/bcm2835-unicam.txt         | 85 +++++++++++++++++++
+ 1 file changed, 85 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/bcm2835-unicam.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/bcm2835-unicam.txt
+@@ -0,0 +1,85 @@
++Broadcom BCM283x Camera Interface (Unicam)
++------------------------------------------
++
++The Unicam block on BCM283x SoCs is the receiver for either
++CSI-2 or CCP2 data from image sensors or similar devices.
++
++The main platform using this SoC is the Raspberry Pi family of boards.
++On the Pi the VideoCore firmware can also control this hardware block,
++and driving it from two different processors will cause issues.
++To avoid this, the firmware checks the device tree configuration
++during boot. If it finds device tree nodes called csi0 or csi1 then
++it will stop the firmware accessing the block, and it can then
++safely be used via the device tree binding.
++
++Required properties:
++===================
++- compatible	: must be "brcm,bcm2835-unicam".
++- reg		: physical base address and length of the register sets for the
++		  device.
++- interrupts	: should contain the IRQ line for this Unicam instance.
++- clocks	: list of clock specifiers, corresponding to entries in
++		  clock-names property.
++- clock-names	: must contain an "lp" entry, matching entries in the
++		  clocks property.
++
++Unicam supports a single port node. It should contain one 'port' child node
++with child 'endpoint' node. Please refer to the bindings defined in
++Documentation/devicetree/bindings/media/video-interfaces.txt.
++
++Within the endpoint node the "remote-endpoint" and "data-lanes" properties
++are mandatory.
++Data lane reordering is not supported so the data lanes must be in order,
++starting at 1. The number of data lanes should represent the number of
++usable lanes for the hardware block. That may be limited by either the SoC or
++how the platform presents the interface, and the lower value must be used.
++
++Lane reordering is not supported on the clock lane either, so the optional
++property "clock-lane" will implicitly be <0>.
++Similarly lane inversion is not supported, therefore "lane-polarities" will
++implicitly be <0 0 0 0 0>.
++Neither of these values will be checked.
++
++Example:
++	csi1: csi1@7e801000 {
++		compatible = "brcm,bcm2835-unicam";
++		reg = <0x7e801000 0x800>,
++		      <0x7e802004 0x4>;
++		interrupts = <2 7>;
++		clocks = <&clocks BCM2835_CLOCK_CAM1>;
++		clock-names = "lp";
++
++		port {
++			csi1_ep: endpoint {
++				remote-endpoint = <&tc358743_0>;
++				data-lanes = <1 2>;
++			};
++		};
++	};
++
++	i2c0: i2c@7e205000 {
++		tc358743: csi-hdmi-bridge@0f {
++			compatible = "toshiba,tc358743";
++			reg = <0x0f>;
++
++			clocks = <&tc358743_clk>;
++			clock-names = "refclk";
++
++			tc358743_clk: bridge-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <27000000>;
++			};
++
++			port {
++				tc358743_0: endpoint {
++					remote-endpoint = <&csi1_ep>;
++					clock-lanes = <0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++					link-frequencies =
++						/bits/ 64 <297000000>;
++				};
++			};
++		};
++	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0110-MAINTAINERS-Add-entry-for-BCM2835-Unicam-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0110-MAINTAINERS-Add-entry-for-BCM2835-Unicam-driver.patch
new file mode 100644
index 0000000000..0a0999cc2f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0110-MAINTAINERS-Add-entry-for-BCM2835-Unicam-driver.patch
@@ -0,0 +1,28 @@
+From cf4ad61eafe94c2d049bf159b61e3a1c71837d2b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 31 Oct 2018 14:59:40 +0000
+Subject: [PATCH] MAINTAINERS: Add entry for BCM2835 Unicam driver
+
+Adds entry for the new BCM2835 Unicam (CSI-2 receiver) driver
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ MAINTAINERS | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3417,6 +3417,13 @@ N:	bcm113*
+ N:	bcm216*
+ N:	kona
+ 
++BROADCOM BCM2835 CAMERA DRIVER
++M:	Dave Stevenson <dave.stevenson@raspberrypi.org>
++L:	linux-media@vger.kernel.org
++S:	Maintained
++F:	drivers/media/platform/bcm2835/
++F:	Documentation/devicetree/bindings/media/bcm2835-unicam.txt
++
+ BROADCOM BCM47XX MIPS ARCHITECTURE
+ M:	Hauke Mehrtens <hauke@hauke-m.de>
+ M:	Rafał Miłecki <zajec5@gmail.com>
diff --git a/target/linux/bcm27xx/patches-5.10/950-0111-media-tc358743-Return-an-appropriate-colorspace-from.patch b/target/linux/bcm27xx/patches-5.10/950-0111-media-tc358743-Return-an-appropriate-colorspace-from.patch
new file mode 100644
index 0000000000..c204a51b50
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0111-media-tc358743-Return-an-appropriate-colorspace-from.patch
@@ -0,0 +1,98 @@
+From 56feb06d0ad3092abf74957463b7c2023b7f7c95 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 22 Nov 2018 17:31:06 +0000
+Subject: [PATCH] media: tc358743: Return an appropriate colorspace
+ from tc358743_set_fmt
+
+When calling tc358743_set_fmt, the code was calling tc358743_get_fmt
+to choose a valid format. However that sets the colorspace
+based on what was read back from the chip. When you set the format,
+then the driver would choose and program the colorspace based
+on the format code.
+
+The result was that if you called try or set format for UYVY
+when the current format was RGB3 then you would get told sRGB,
+and try RGB3 when current was UYVY and you would get told
+SMPTE170M.
+
+The value programmed into the chip is determined by this driver,
+therefore there is no need to read back the value. Return the
+colorspace based on the format set/tried instead.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/tc358743.c | 40 +++++++++++++-----------------------
+ 1 file changed, 14 insertions(+), 26 deletions(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -1691,12 +1691,23 @@ static int tc358743_enum_mbus_code(struc
+ 	return 0;
+ }
+ 
++static u32 tc358743_g_colorspace(u32 code)
++{
++	switch (code) {
++	case MEDIA_BUS_FMT_RGB888_1X24:
++		return V4L2_COLORSPACE_SRGB;
++	case MEDIA_BUS_FMT_UYVY8_1X16:
++		return V4L2_COLORSPACE_SMPTE170M;
++	default:
++		return 0;
++	}
++}
++
+ static int tc358743_get_fmt(struct v4l2_subdev *sd,
+ 		struct v4l2_subdev_pad_config *cfg,
+ 		struct v4l2_subdev_format *format)
+ {
+ 	struct tc358743_state *state = to_state(sd);
+-	u8 vi_rep = i2c_rd8(sd, VI_REP);
+ 
+ 	if (format->pad != 0)
+ 		return -EINVAL;
+@@ -1706,23 +1717,7 @@ static int tc358743_get_fmt(struct v4l2_
+ 	format->format.height = state->timings.bt.height;
+ 	format->format.field = V4L2_FIELD_NONE;
+ 
+-	switch (vi_rep & MASK_VOUT_COLOR_SEL) {
+-	case MASK_VOUT_COLOR_RGB_FULL:
+-	case MASK_VOUT_COLOR_RGB_LIMITED:
+-		format->format.colorspace = V4L2_COLORSPACE_SRGB;
+-		break;
+-	case MASK_VOUT_COLOR_601_YCBCR_LIMITED:
+-	case MASK_VOUT_COLOR_601_YCBCR_FULL:
+-		format->format.colorspace = V4L2_COLORSPACE_SMPTE170M;
+-		break;
+-	case MASK_VOUT_COLOR_709_YCBCR_FULL:
+-	case MASK_VOUT_COLOR_709_YCBCR_LIMITED:
+-		format->format.colorspace = V4L2_COLORSPACE_REC709;
+-		break;
+-	default:
+-		format->format.colorspace = 0;
+-		break;
+-	}
++	format->format.colorspace = tc358743_g_colorspace(format->format.code);
+ 
+ 	return 0;
+ }
+@@ -1737,18 +1732,11 @@ static int tc358743_set_fmt(struct v4l2_
+ 	int ret = tc358743_get_fmt(sd, cfg, format);
+ 
+ 	format->format.code = code;
++	format->format.colorspace = tc358743_g_colorspace(code);
+ 
+ 	if (ret)
+ 		return ret;
+ 
+-	switch (code) {
+-	case MEDIA_BUS_FMT_RGB888_1X24:
+-	case MEDIA_BUS_FMT_UYVY8_1X16:
+-		break;
+-	default:
+-		return -EINVAL;
+-	}
+-
+ 	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+ 		return 0;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0112-staging-mmal-vchiq-Avoid-use-of-bool-in-structures.patch b/target/linux/bcm27xx/patches-5.10/950-0112-staging-mmal-vchiq-Avoid-use-of-bool-in-structures.patch
new file mode 100644
index 0000000000..4b820ee58b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0112-staging-mmal-vchiq-Avoid-use-of-bool-in-structures.patch
@@ -0,0 +1,24 @@
+From ec20cd708f7497a77d8832d5e043214b1a414f94 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 29 Oct 2018 16:20:46 +0000
+Subject: [PATCH] staging: mmal-vchiq: Avoid use of bool in structures
+
+Fixes up a checkpatch error "Avoid using bool structure members
+because of possible alignment issues".
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -1775,7 +1775,7 @@ int vchiq_mmal_component_enable(struct v
+ 
+ 	ret = enable_component(instance, component);
+ 	if (ret == 0)
+-		component->enabled = true;
++		component->enabled = 1;
+ 
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0113-staging-mmal-vchiq-Add-support-for-event-callbacks.patch b/target/linux/bcm27xx/patches-5.10/950-0113-staging-mmal-vchiq-Add-support-for-event-callbacks.patch
new file mode 100644
index 0000000000..048ba65cbf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0113-staging-mmal-vchiq-Add-support-for-event-callbacks.patch
@@ -0,0 +1,356 @@
+From 9db03c416d385ff601211212e0233a8cf3f42812 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 24 Sep 2018 18:15:38 +0100
+Subject: [PATCH] staging: mmal-vchiq: Add support for event callbacks.
+
+(Preparation for the codec driver).
+The codec uses the event mechanism to report things such as
+resolution changes. It is signalled by the cmd field of the buffer
+being non-zero.
+
+Add support for passing this information out to the client.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vc04_services/vchiq-mmal/mmal-common.h    |   1 +
+ .../vc04_services/vchiq-mmal/mmal-msg.h       |  35 ++++
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c     | 170 ++++++++++++++++--
+ .../vc04_services/vchiq-mmal/mmal-vchiq.h     |   4 +
+ 4 files changed, 196 insertions(+), 14 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-common.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-common.h
+@@ -50,6 +50,7 @@ struct mmal_buffer {
+ 
+ 	struct mmal_msg_context *msg_context;
+ 
++	u32 cmd;		/* MMAL command. 0=data. */
+ 	unsigned long length;
+ 	u32 mmal_flags;
+ 	s64 dts;
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
+@@ -346,6 +346,41 @@ struct mmal_msg_port_parameter_get_reply
+ /* event messages */
+ #define MMAL_WORKER_EVENT_SPACE 256
+ 
++/* Four CC's for events */
++#define MMAL_FOURCC(a, b, c, d) ((a) | (b << 8) | (c << 16) | (d << 24))
++
++#define MMAL_EVENT_ERROR		MMAL_FOURCC('E', 'R', 'R', 'O')
++#define MMAL_EVENT_EOS			MMAL_FOURCC('E', 'E', 'O', 'S')
++#define MMAL_EVENT_FORMAT_CHANGED	MMAL_FOURCC('E', 'F', 'C', 'H')
++#define MMAL_EVENT_PARAMETER_CHANGED	MMAL_FOURCC('E', 'P', 'C', 'H')
++
++/* Structs for each of the event message payloads */
++struct mmal_msg_event_eos {
++	u32 port_type;	/**< Type of port that received the end of stream */
++	u32 port_index;	/**< Index of port that received the end of stream */
++};
++
++/** Format changed event data. */
++struct mmal_msg_event_format_changed {
++	/* Minimum size of buffers the port requires */
++	u32 buffer_size_min;
++	/* Minimum number of buffers the port requires */
++	u32 buffer_num_min;
++	/* Size of buffers the port recommends for optimal performance.
++	 * A value of zero means no special recommendation.
++	 */
++	u32 buffer_size_recommended;
++	/* Number of buffers the port recommends for optimal
++	 * performance. A value of zero means no special recommendation.
++	 */
++	u32 buffer_num_recommended;
++
++	u32 es_ptr;
++	struct mmal_es_format format;
++	union mmal_es_specific_format es;
++	u8 extradata[MMAL_FORMAT_EXTRADATA_MAX_SIZE];
++};
++
+ struct mmal_msg_event_to_host {
+ 	u32 client_component;	/* component context */
+ 
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -143,6 +143,8 @@ struct mmal_msg_context {
+ 			/* Presentation and Decode timestamps */
+ 			s64 pts;
+ 			s64 dts;
++			/* MMAL buffer command flag */
++			u32 cmd;
+ 
+ 			int status;	/* context status */
+ 
+@@ -233,18 +235,6 @@ release_msg_context(struct mmal_msg_cont
+ 	kfree(msg_context);
+ }
+ 
+-/* deals with receipt of event to host message */
+-static void event_to_host_cb(struct vchiq_mmal_instance *instance,
+-			     struct mmal_msg *msg, u32 msg_len)
+-{
+-	pr_debug("unhandled event\n");
+-	pr_debug("component:%u port type:%d num:%d cmd:0x%x length:%d\n",
+-		 msg->u.event_to_host.client_component,
+-		 msg->u.event_to_host.port_type,
+-		 msg->u.event_to_host.port_num,
+-		 msg->u.event_to_host.cmd, msg->u.event_to_host.length);
+-}
+-
+ /* workqueue scheduled callback
+  *
+  * we do this because it is important we do not call any other vchiq
+@@ -266,13 +256,18 @@ static void buffer_work_cb(struct work_s
+ 	buffer->mmal_flags = msg_context->u.bulk.mmal_flags;
+ 	buffer->dts = msg_context->u.bulk.dts;
+ 	buffer->pts = msg_context->u.bulk.pts;
++	buffer->cmd = msg_context->u.bulk.cmd;
+ 
+-	atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu);
++	if (!buffer->cmd)
++		atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu);
+ 
+ 	msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance,
+ 					    msg_context->u.bulk.port,
+ 					    msg_context->u.bulk.status,
+ 					    msg_context->u.bulk.buffer);
++
++	if (buffer->cmd)
++		mutex_unlock(&msg_context->u.bulk.port->event_context_mutex);
+ }
+ 
+ /* workqueue scheduled callback to handle receiving buffers
+@@ -350,6 +345,7 @@ static int bulk_receive(struct vchiq_mma
+ 	msg_context->u.bulk.buffer_used = rd_len;
+ 	msg_context->u.bulk.dts = msg->u.buffer_from_host.buffer_header.dts;
+ 	msg_context->u.bulk.pts = msg->u.buffer_from_host.buffer_header.pts;
++	msg_context->u.bulk.cmd = msg->u.buffer_from_host.buffer_header.cmd;
+ 
+ 	queue_work(msg_context->instance->bulk_wq,
+ 		   &msg_context->u.bulk.buffer_to_host_work);
+@@ -452,6 +448,103 @@ buffer_from_host(struct vchiq_mmal_insta
+ 	return ret;
+ }
+ 
++/* deals with receipt of event to host message */
++static void event_to_host_cb(struct vchiq_mmal_instance *instance,
++			     struct mmal_msg *msg, u32 msg_len)
++{
++	/* FIXME: Not going to work on 64 bit */
++	struct vchiq_mmal_component *component =
++		(struct vchiq_mmal_component *)msg->u.event_to_host.client_component;
++	struct vchiq_mmal_port *port = NULL;
++	struct mmal_msg_context *msg_context;
++	u32 port_num = msg->u.event_to_host.port_num;
++
++	if (msg->u.buffer_from_host.drvbuf.magic == MMAL_MAGIC) {
++		pr_err("%s: MMAL_MSG_TYPE_BUFFER_TO_HOST with bad magic\n",
++		       __func__);
++		return;
++	}
++
++	switch (msg->u.event_to_host.port_type) {
++	case MMAL_PORT_TYPE_CONTROL:
++		if (port_num) {
++			pr_err("%s: port_num of %u >= number of ports 1",
++			       __func__, port_num);
++			return;
++		}
++		port = &component->control;
++		break;
++	case MMAL_PORT_TYPE_INPUT:
++		if (port_num >= component->inputs) {
++			pr_err("%s: port_num of %u >= number of ports %u",
++			       __func__, port_num,
++			       port_num >= component->inputs);
++			return;
++		}
++		port = &component->input[port_num];
++		break;
++	case MMAL_PORT_TYPE_OUTPUT:
++		if (port_num >= component->outputs) {
++			pr_err("%s: port_num of %u >= number of ports %u",
++			       __func__, port_num,
++			       port_num >= component->outputs);
++			return;
++		}
++		port = &component->output[port_num];
++		break;
++	case MMAL_PORT_TYPE_CLOCK:
++		if (port_num >= component->clocks) {
++			pr_err("%s: port_num of %u >= number of ports %u",
++			       __func__, port_num,
++			       port_num >= component->clocks);
++			return;
++		}
++		port = &component->clock[port_num];
++		break;
++	default:
++		break;
++	}
++
++	if (!mutex_trylock(&port->event_context_mutex)) {
++		pr_err("dropping event 0x%x\n", msg->u.event_to_host.cmd);
++		return;
++	}
++	msg_context = port->event_context;
++
++	if (msg->h.status != MMAL_MSG_STATUS_SUCCESS) {
++		/* message reception had an error */
++		//pr_warn
++		pr_err("%s: error %d in reply\n", __func__, msg->h.status);
++
++		msg_context->u.bulk.status = msg->h.status;
++	} else if (msg->u.event_to_host.length > MMAL_WORKER_EVENT_SPACE) {
++		/* data is not in message, queue a bulk receive */
++		pr_err("%s: payload not in message - bulk receive??! NOT SUPPORTED\n",
++		       __func__);
++		msg_context->u.bulk.status = -1;
++	} else {
++		memcpy(msg_context->u.bulk.buffer->buffer,
++		       msg->u.event_to_host.data,
++		       msg->u.event_to_host.length);
++
++		msg_context->u.bulk.buffer_used =
++		    msg->u.event_to_host.length;
++
++		msg_context->u.bulk.mmal_flags = 0;
++		msg_context->u.bulk.dts = MMAL_TIME_UNKNOWN;
++		msg_context->u.bulk.pts = MMAL_TIME_UNKNOWN;
++		msg_context->u.bulk.cmd = msg->u.event_to_host.cmd;
++
++		pr_debug("event component:%u port type:%d num:%d cmd:0x%x length:%d\n",
++			 msg->u.event_to_host.client_component,
++			 msg->u.event_to_host.port_type,
++			 msg->u.event_to_host.port_num,
++			 msg->u.event_to_host.cmd, msg->u.event_to_host.length);
++	}
++
++	schedule_work(&msg_context->u.bulk.work);
++}
++
+ /* deals with receipt of buffer to host message */
+ static void buffer_to_host_cb(struct vchiq_mmal_instance *instance,
+ 			      struct mmal_msg *msg, u32 msg_len)
+@@ -1332,6 +1425,7 @@ static int port_disable(struct vchiq_mma
+ 				mmalbuf->mmal_flags = 0;
+ 				mmalbuf->dts = MMAL_TIME_UNKNOWN;
+ 				mmalbuf->pts = MMAL_TIME_UNKNOWN;
++				mmalbuf->cmd = 0;
+ 				port->buffer_cb(instance,
+ 						port, 0, mmalbuf);
+ 			}
+@@ -1633,6 +1727,43 @@ int mmal_vchi_buffer_cleanup(struct mmal
+ }
+ EXPORT_SYMBOL_GPL(mmal_vchi_buffer_cleanup);
+ 
++static void init_event_context(struct vchiq_mmal_instance *instance,
++			       struct vchiq_mmal_port *port)
++{
++	struct mmal_msg_context *ctx = get_msg_context(instance);
++
++	mutex_init(&port->event_context_mutex);
++
++	port->event_context = ctx;
++	ctx->u.bulk.instance = instance;
++	ctx->u.bulk.port = port;
++	ctx->u.bulk.buffer =
++		kzalloc(sizeof(*ctx->u.bulk.buffer), GFP_KERNEL);
++	if (!ctx->u.bulk.buffer)
++		goto release_msg_context;
++	ctx->u.bulk.buffer->buffer = kzalloc(MMAL_WORKER_EVENT_SPACE,
++					     GFP_KERNEL);
++	if (!ctx->u.bulk.buffer->buffer)
++		goto release_buffer;
++
++	INIT_WORK(&ctx->u.bulk.work, buffer_work_cb);
++	return;
++
++release_buffer:
++	kfree(ctx->u.bulk.buffer);
++release_msg_context:
++	release_msg_context(ctx);
++}
++
++static void free_event_context(struct vchiq_mmal_port *port)
++{
++	struct mmal_msg_context *ctx = port->event_context;
++
++	kfree(ctx->u.bulk.buffer->buffer);
++	kfree(ctx->u.bulk.buffer);
++	release_msg_context(ctx);
++}
++
+ /* Initialise a mmal component and its ports
+  *
+  */
+@@ -1682,6 +1813,7 @@ int vchiq_mmal_component_init(struct vch
+ 	ret = port_info_get(instance, &component->control);
+ 	if (ret < 0)
+ 		goto release_component;
++	init_event_context(instance, &component->control);
+ 
+ 	for (idx = 0; idx < component->inputs; idx++) {
+ 		component->input[idx].type = MMAL_PORT_TYPE_INPUT;
+@@ -1692,6 +1824,7 @@ int vchiq_mmal_component_init(struct vch
+ 		ret = port_info_get(instance, &component->input[idx]);
+ 		if (ret < 0)
+ 			goto release_component;
++		init_event_context(instance, &component->input[idx]);
+ 	}
+ 
+ 	for (idx = 0; idx < component->outputs; idx++) {
+@@ -1703,6 +1836,7 @@ int vchiq_mmal_component_init(struct vch
+ 		ret = port_info_get(instance, &component->output[idx]);
+ 		if (ret < 0)
+ 			goto release_component;
++		init_event_context(instance, &component->output[idx]);
+ 	}
+ 
+ 	for (idx = 0; idx < component->clocks; idx++) {
+@@ -1714,6 +1848,7 @@ int vchiq_mmal_component_init(struct vch
+ 		ret = port_info_get(instance, &component->clock[idx]);
+ 		if (ret < 0)
+ 			goto release_component;
++		init_event_context(instance, &component->clock[idx]);
+ 	}
+ 
+ 	*component_out = component;
+@@ -1739,7 +1874,7 @@ EXPORT_SYMBOL_GPL(vchiq_mmal_component_i
+ int vchiq_mmal_component_finalise(struct vchiq_mmal_instance *instance,
+ 				  struct vchiq_mmal_component *component)
+ {
+-	int ret;
++	int ret, idx;
+ 
+ 	if (mutex_lock_interruptible(&instance->vchiq_mutex))
+ 		return -EINTR;
+@@ -1751,6 +1886,13 @@ int vchiq_mmal_component_finalise(struct
+ 
+ 	component->in_use = 0;
+ 
++	for (idx = 0; idx < component->inputs; idx++)
++		free_event_context(&component->input[idx]);
++	for (idx = 0; idx < component->outputs; idx++)
++		free_event_context(&component->output[idx]);
++	for (idx = 0; idx < component->clocks; idx++)
++		free_event_context(&component->clock[idx]);
++
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
+ 	return ret;
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+@@ -79,6 +79,10 @@ struct vchiq_mmal_port {
+ 	vchiq_mmal_buffer_cb buffer_cb;
+ 	/* callback context */
+ 	void *cb_ctx;
++
++	/* ensure serialised use of the one event context structure */
++	struct mutex event_context_mutex;
++	struct mmal_msg_context *event_context;
+ };
+ 
+ struct vchiq_mmal_component {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0114-staging-vc04_services-Support-sending-data-to-MMAL-p.patch b/target/linux/bcm27xx/patches-5.10/950-0114-staging-vc04_services-Support-sending-data-to-MMAL-p.patch
new file mode 100644
index 0000000000..76a401beeb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0114-staging-vc04_services-Support-sending-data-to-MMAL-p.patch
@@ -0,0 +1,42 @@
+From a15278923fdaa73cdf1bef1ec0f1c973c64dbb43 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 24 Sep 2018 18:26:02 +0100
+Subject: [PATCH] staging: vc04_services: Support sending data to MMAL
+ ports
+
+Add the ability to send data to ports. This only supports
+zero copy mode as the required bulk transfer setup calls
+are not done.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c      | 18 +++++++++++++-----
+ 1 file changed, 13 insertions(+), 5 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -422,11 +422,19 @@ buffer_from_host(struct vchiq_mmal_insta
+ 	m.u.buffer_from_host.buffer_header.data =
+ 		(u32)(unsigned long)buf->buffer;
+ 	m.u.buffer_from_host.buffer_header.alloc_size = buf->buffer_size;
+-	m.u.buffer_from_host.buffer_header.length = 0;	/* nothing used yet */
+-	m.u.buffer_from_host.buffer_header.offset = 0;	/* no offset */
+-	m.u.buffer_from_host.buffer_header.flags = 0;	/* no flags */
+-	m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN;
+-	m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN;
++	if (port->type == MMAL_PORT_TYPE_OUTPUT) {
++		m.u.buffer_from_host.buffer_header.length = 0;
++		m.u.buffer_from_host.buffer_header.offset = 0;
++		m.u.buffer_from_host.buffer_header.flags = 0;
++		m.u.buffer_from_host.buffer_header.pts = MMAL_TIME_UNKNOWN;
++		m.u.buffer_from_host.buffer_header.dts = MMAL_TIME_UNKNOWN;
++	} else {
++		m.u.buffer_from_host.buffer_header.length = buf->length;
++		m.u.buffer_from_host.buffer_header.offset = 0;
++		m.u.buffer_from_host.buffer_header.flags = buf->mmal_flags;
++		m.u.buffer_from_host.buffer_header.pts = buf->pts;
++		m.u.buffer_from_host.buffer_header.dts = buf->dts;
++	}
+ 
+ 	/* clear buffer type sepecific data */
+ 	memset(&m.u.buffer_from_host.buffer_header_type_specific, 0,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0115-media-videobuf2-Allow-exporting-of-a-struct-dmabuf.patch b/target/linux/bcm27xx/patches-5.10/950-0115-media-videobuf2-Allow-exporting-of-a-struct-dmabuf.patch
new file mode 100644
index 0000000000..4ef794c6c0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0115-media-videobuf2-Allow-exporting-of-a-struct-dmabuf.patch
@@ -0,0 +1,83 @@
+From 2147f93fd4871833b157834ef708a5b99e8e280b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 29 Oct 2018 17:57:45 +0000
+Subject: [PATCH] media: videobuf2: Allow exporting of a struct dmabuf
+
+videobuf2 only allowed exporting a dmabuf as a file descriptor,
+but there are instances where having the struct dma_buf is
+useful within the kernel.
+
+Split the current implementation into two, one step which
+exports a struct dma_buf, and the second which converts that
+into an fd.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../media/common/videobuf2/videobuf2-core.c   | 21 ++++++++++++++++---
+ include/media/videobuf2-core.h                | 15 +++++++++++++
+ 2 files changed, 33 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/common/videobuf2/videobuf2-core.c
++++ b/drivers/media/common/videobuf2/videobuf2-core.c
+@@ -2140,12 +2140,12 @@ static int __find_plane_by_offset(struct
+ 	return -EINVAL;
+ }
+ 
+-int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
+-		unsigned int index, unsigned int plane, unsigned int flags)
++int vb2_core_expbuf_dmabuf(struct vb2_queue *q, unsigned int type,
++			   unsigned int index, unsigned int plane,
++			   unsigned int flags, struct dma_buf **dmabuf)
+ {
+ 	struct vb2_buffer *vb = NULL;
+ 	struct vb2_plane *vb_plane;
+-	int ret;
+ 	struct dma_buf *dbuf;
+ 
+ 	if (q->memory != VB2_MEMORY_MMAP) {
+@@ -2195,6 +2195,21 @@ int vb2_core_expbuf(struct vb2_queue *q,
+ 		return -EINVAL;
+ 	}
+ 
++	*dmabuf = dbuf;
++	return 0;
++}
++EXPORT_SYMBOL_GPL(vb2_core_expbuf_dmabuf);
++
++int vb2_core_expbuf(struct vb2_queue *q, int *fd, unsigned int type,
++		    unsigned int index, unsigned int plane, unsigned int flags)
++{
++	struct dma_buf *dbuf;
++	int ret;
++
++	ret = vb2_core_expbuf_dmabuf(q, type, index, plane, flags, &dbuf);
++	if (ret)
++		return ret;
++
+ 	ret = dma_buf_fd(dbuf, flags & ~O_ACCMODE);
+ 	if (ret < 0) {
+ 		dprintk(q, 3, "buffer %d, plane %d failed to export (%d)\n",
+--- a/include/media/videobuf2-core.h
++++ b/include/media/videobuf2-core.h
+@@ -902,6 +902,21 @@ int vb2_core_streamon(struct vb2_queue *
+ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type);
+ 
+ /**
++ * vb2_core_expbuf_dmabuf() - Export a buffer as a dma_buf structure
++ * @q:         videobuf2 queue
++ * @type:      buffer type
++ * @index:     id number of the buffer
++ * @plane:     index of the plane to be exported, 0 for single plane queues
++ * @flags:     flags for newly created file, currently only O_CLOEXEC is
++ *             supported, refer to manual of open syscall for more details
++ * @dmabuf:    Returns the dmabuf pointer
++ *
++ */
++int vb2_core_expbuf_dmabuf(struct vb2_queue *q, unsigned int type,
++			   unsigned int index, unsigned int plane,
++			   unsigned int flags, struct dma_buf **dmabuf);
++
++/**
+  * vb2_core_expbuf() - Export a buffer as a file descriptor.
+  * @q:		pointer to &struct vb2_queue with videobuf2 queue.
+  * @fd:		pointer to the file descriptor associated with DMABUF
diff --git a/target/linux/bcm27xx/patches-5.10/950-0116-staging-mmal-vchiq-Fix-client_component-for-64-bit-k.patch b/target/linux/bcm27xx/patches-5.10/950-0116-staging-mmal-vchiq-Fix-client_component-for-64-bit-k.patch
new file mode 100644
index 0000000000..464ec402c5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0116-staging-mmal-vchiq-Fix-client_component-for-64-bit-k.patch
@@ -0,0 +1,35 @@
+From b9154d619c0ae2c8636b9bb3f76fe3daa9dc6d8d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 22 Jan 2019 12:04:09 +0000
+Subject: [PATCH] staging: mmal-vchiq: Fix client_component for 64 bit
+ kernel
+
+The MMAL client_component field is used with the event
+mechanism to allow the client to identify the component for
+which the event is generated.
+The field is only 32bits in size, therefore we can't use a
+pointer to the component in a 64 bit kernel.
+
+Component handles are already held in an array per VCHI
+instance, so use the array index as the client_component handle
+to avoid having to create a new IDR for this purpose.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -460,9 +460,9 @@ buffer_from_host(struct vchiq_mmal_insta
+ static void event_to_host_cb(struct vchiq_mmal_instance *instance,
+ 			     struct mmal_msg *msg, u32 msg_len)
+ {
+-	/* FIXME: Not going to work on 64 bit */
++	int comp_idx = msg->u.event_to_host.client_component;
+ 	struct vchiq_mmal_component *component =
+-		(struct vchiq_mmal_component *)msg->u.event_to_host.client_component;
++					&instance->component[comp_idx];
+ 	struct vchiq_mmal_port *port = NULL;
+ 	struct mmal_msg_context *msg_context;
+ 	u32 port_num = msg->u.event_to_host.port_num;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0117-clk-clk-bcm2835-Use-zd-when-printing-size_t.patch b/target/linux/bcm27xx/patches-5.10/950-0117-clk-clk-bcm2835-Use-zd-when-printing-size_t.patch
new file mode 100644
index 0000000000..0a984fb404
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0117-clk-clk-bcm2835-Use-zd-when-printing-size_t.patch
@@ -0,0 +1,24 @@
+From 1ade3c32d515dba5afa50f389d374b19d1b76cdb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 24 Jan 2019 15:09:28 +0000
+Subject: [PATCH] clk: clk-bcm2835: Use %zd when printing size_t
+
+The debug text for how many clocks have been registered
+uses "%d" with a size_t. Correct it to "%zd".
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -2382,7 +2382,7 @@ static int bcm2835_clk_probe(struct plat
+ 		return ret;
+ 
+ 	/* note that we have registered all the clocks */
+-	dev_dbg(dev, "registered %d clocks\n", asize);
++	dev_dbg(dev, "registered %zd clocks\n", asize);
+ 
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0118-media-ov5647-Use-gpiod_set_value_cansleep.patch b/target/linux/bcm27xx/patches-5.10/950-0118-media-ov5647-Use-gpiod_set_value_cansleep.patch
new file mode 100644
index 0000000000..1c0a24f805
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0118-media-ov5647-Use-gpiod_set_value_cansleep.patch
@@ -0,0 +1,54 @@
+From 58f1758adcdbfd1cf556eb3cbb85b88ddcef0840 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 18 Sep 2018 11:08:51 +0100
+Subject: [PATCH] media: ov5647: Use gpiod_set_value_cansleep
+
+All calls to the gpio library are in contexts that can sleep,
+therefore there is no issue with having those GPIOs controlled
+by controllers which require sleeping (eg I2C GPIO expanders).
+
+Switch to using gpiod_set_value_cansleep instead of gpiod_set_value
+to avoid triggering the warning in gpiolib should the GPIO
+controller need to sleep.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/i2c/ov5647.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -373,7 +373,7 @@ static int ov5647_sensor_power(struct v4
+ 		dev_dbg(&client->dev, "OV5647 power on\n");
+ 
+ 		if (ov5647->pwdn) {
+-			gpiod_set_value(ov5647->pwdn, 0);
++			gpiod_set_value_cansleep(ov5647->pwdn, 0);
+ 			msleep(PWDN_ACTIVE_DELAY_MS);
+ 		}
+ 
+@@ -415,7 +415,7 @@ static int ov5647_sensor_power(struct v4
+ 
+ 		clk_disable_unprepare(ov5647->xclk);
+ 
+-		gpiod_set_value(ov5647->pwdn, 1);
++		gpiod_set_value_cansleep(ov5647->pwdn, 1);
+ 	}
+ 
+ 	/* Update the power count. */
+@@ -648,13 +648,13 @@ static int ov5647_probe(struct i2c_clien
+ 		goto mutex_remove;
+ 
+ 	if (sensor->pwdn) {
+-		gpiod_set_value(sensor->pwdn, 0);
++		gpiod_set_value_cansleep(sensor->pwdn, 0);
+ 		msleep(PWDN_ACTIVE_DELAY_MS);
+ 	}
+ 
+ 	ret = ov5647_detect(sd);
+ 
+-	gpiod_set_value(sensor->pwdn, 1);
++	gpiod_set_value_cansleep(sensor->pwdn, 1);
+ 
+ 	if (ret < 0)
+ 		goto error;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0119-staging-mmal_vchiq-Add-in-the-Bayer-encoding-formats.patch b/target/linux/bcm27xx/patches-5.10/950-0119-staging-mmal_vchiq-Add-in-the-Bayer-encoding-formats.patch
new file mode 100644
index 0000000000..c7a642c4ed
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0119-staging-mmal_vchiq-Add-in-the-Bayer-encoding-formats.patch
@@ -0,0 +1,51 @@
+From 39b79b302b63d8ba86a0da4d219e5ad2491bac1d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 13 Feb 2019 12:33:29 +0000
+Subject: [PATCH] staging: mmal_vchiq: Add in the Bayer encoding
+ formats
+
+The list of formats was copied before Bayer support was added.
+The ISP supports Bayer and is being supported by the bcm2835_codec
+driver, so add in the encodings for them.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vc04_services/vchiq-mmal/mmal-encodings.h | 27 +++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
+@@ -69,6 +69,33 @@
+  */
+ #define MMAL_ENCODING_OPAQUE           MMAL_FOURCC('O', 'P', 'Q', 'V')
+ 
++/* Bayer formats
++ * FourCC values copied from V4L2 where defined.
++ */
++/* 8 bit per pixel Bayer formats. */
++#define MMAL_ENCODING_BAYER_SBGGR8     MMAL_FOURCC('B', 'A', '8', '1')
++#define MMAL_ENCODING_BAYER_SGBRG8     MMAL_FOURCC('G', 'B', 'R', 'G')
++#define MMAL_ENCODING_BAYER_SGRBG8     MMAL_FOURCC('G', 'R', 'B', 'G')
++#define MMAL_ENCODING_BAYER_SRGGB8     MMAL_FOURCC('R', 'G', 'G', 'B')
++
++/* 10 bit per pixel packed Bayer formats. */
++#define MMAL_ENCODING_BAYER_SBGGR10P   MMAL_FOURCC('p', 'B', 'A', 'A')
++#define MMAL_ENCODING_BAYER_SGRBG10P   MMAL_FOURCC('p', 'g', 'A', 'A')
++#define MMAL_ENCODING_BAYER_SGBRG10P   MMAL_FOURCC('p', 'G', 'A', 'A')
++#define MMAL_ENCODING_BAYER_SRGGB10P   MMAL_FOURCC('p', 'R', 'A', 'A')
++
++/* 12 bit per pixel packed Bayer formats. */
++#define MMAL_ENCODING_BAYER_SBGGR12P   MMAL_FOURCC('p', 'B', '1', '2')
++#define MMAL_ENCODING_BAYER_SGRBG12P   MMAL_FOURCC('p', 'g', '1', '2')
++#define MMAL_ENCODING_BAYER_SGBRG12P   MMAL_FOURCC('p', 'G', '1', '2')
++#define MMAL_ENCODING_BAYER_SRGGB12P   MMAL_FOURCC('p', 'R', '1', '2')
++
++/* 16 bit per pixel Bayer formats. */
++#define MMAL_ENCODING_BAYER_SBGGR16    MMAL_FOURCC('B', 'G', '1', '6')
++#define MMAL_ENCODING_BAYER_SGBRG16    MMAL_FOURCC('G', 'B', '1', '6')
++#define MMAL_ENCODING_BAYER_SGRBG16    MMAL_FOURCC('G', 'R', '1', '6')
++#define MMAL_ENCODING_BAYER_SRGGB16    MMAL_FOURCC('R', 'G', '1', '6')
++
+ /** An EGL image handle
+  */
+ #define MMAL_ENCODING_EGL_IMAGE        MMAL_FOURCC('E', 'G', 'L', 'I')
diff --git a/target/linux/bcm27xx/patches-5.10/950-0120-staging-mmal-vchiq-Update-mmal_parameters.h-with-rec.patch b/target/linux/bcm27xx/patches-5.10/950-0120-staging-mmal-vchiq-Update-mmal_parameters.h-with-rec.patch
new file mode 100644
index 0000000000..4ea2b995e8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0120-staging-mmal-vchiq-Update-mmal_parameters.h-with-rec.patch
@@ -0,0 +1,56 @@
+From d3356393f78e85eff4b36ad95d86d5f418a87865 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Mon, 18 Feb 2019 15:52:29 +0000
+Subject: [PATCH] staging: mmal-vchiq: Update mmal_parameters.h with
+ recently defined params
+
+mmal_parameters.h hasn't been updated to reflect additions made
+over the last few years. Update it to reflect the currently
+supported parameters.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vchiq-mmal/mmal-parameters.h              | 32 ++++++++++++++++++-
+ 1 file changed, 31 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -580,7 +580,37 @@ enum mmal_parameter_video_type {
+ 	MMAL_PARAMETER_VIDEO_ENCODE_H264_LOW_DELAY_HRD_FLAG,
+ 
+ 	/**< @ref MMAL_PARAMETER_BOOLEAN_T */
+-	MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER
++	MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER,
++
++	/**< Take a @ref MMAL_PARAMETER_BOOLEAN_T. */
++	MMAL_PARAMETER_VIDEO_ENCODE_SEI_ENABLE,
++
++	/**< Take a @ref MMAL_PARAMETER_BOOLEAN_T. */
++	MMAL_PARAMETER_VIDEO_ENCODE_INLINE_VECTORS,
++
++	/**< Take a @ref MMAL_PARAMETER_VIDEO_RENDER_STATS_T. */
++	MMAL_PARAMETER_VIDEO_RENDER_STATS,
++
++	/**< Take a @ref MMAL_PARAMETER_VIDEO_INTERLACE_TYPE_T. */
++	MMAL_PARAMETER_VIDEO_INTERLACE_TYPE,
++
++	/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_INTERPOLATE_TIMESTAMPS,
++
++	/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_ENCODE_SPS_TIMING,
++
++	/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS,
++
++	/**< Takes a @ref MMAL_PARAMETER_SOURCE_PATTERN_T */
++	MMAL_PARAMETER_VIDEO_SOURCE_PATTERN,
++
++	/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_ENCODE_SEPARATE_NAL_BUFS,
++
++	/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_VIDEO_DROPPABLE_PFRAME_LENGTH,
+ };
+ 
+ /** Valid mirror modes */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0121-staging-mmal-vchiq-Free-the-event-context-for-contro.patch b/target/linux/bcm27xx/patches-5.10/950-0121-staging-mmal-vchiq-Free-the-event-context-for-contro.patch
new file mode 100644
index 0000000000..94743b025b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0121-staging-mmal-vchiq-Free-the-event-context-for-contro.patch
@@ -0,0 +1,28 @@
+From fd281e20be4590566f0a75d965318685b8562df6 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 1 May 2019 13:27:23 +0100
+Subject: [PATCH] staging: mmal-vchiq: Free the event context for
+ control ports
+
+vchiq_mmal_component_init calls init_event_context for the
+control port, but vchiq_mmal_component_finalise didn't free
+it, causing a memory leak..
+
+Add the free call.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -1901,6 +1901,8 @@ int vchiq_mmal_component_finalise(struct
+ 	for (idx = 0; idx < component->clocks; idx++)
+ 		free_event_context(&component->clock[idx]);
+ 
++	free_event_context(&component->control);
++
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
+ 	return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0122-staging-mmal-vchiq-Fix-memory-leak-in-error-path.patch b/target/linux/bcm27xx/patches-5.10/950-0122-staging-mmal-vchiq-Fix-memory-leak-in-error-path.patch
new file mode 100644
index 0000000000..e42228e52f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0122-staging-mmal-vchiq-Fix-memory-leak-in-error-path.patch
@@ -0,0 +1,76 @@
+From 00dd46a6ddc94ee87db183dfec1e096c159b1d7b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Thu, 2 May 2019 15:50:01 +0100
+Subject: [PATCH] staging: mmal-vchiq: Fix memory leak in error path
+
+On error, vchiq_mmal_component_init could leave the
+event context allocated for ports.
+Clean them up in the error path.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c     | 29 +++++++++++++------
+ 1 file changed, 20 insertions(+), 9 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -1767,9 +1767,26 @@ static void free_event_context(struct vc
+ {
+ 	struct mmal_msg_context *ctx = port->event_context;
+ 
++	if (!ctx)
++		return;
++
+ 	kfree(ctx->u.bulk.buffer->buffer);
+ 	kfree(ctx->u.bulk.buffer);
+ 	release_msg_context(ctx);
++	port->event_context = NULL;
++}
++
++static void release_all_event_contexts(struct vchiq_mmal_component *component)
++{
++	int idx;
++
++	for (idx = 0; idx < component->inputs; idx++)
++		free_event_context(&component->input[idx]);
++	for (idx = 0; idx < component->outputs; idx++)
++		free_event_context(&component->output[idx]);
++	for (idx = 0; idx < component->clocks; idx++)
++		free_event_context(&component->clock[idx]);
++	free_event_context(&component->control);
+ }
+ 
+ /* Initialise a mmal component and its ports
+@@ -1867,6 +1884,7 @@ int vchiq_mmal_component_init(struct vch
+ 
+ release_component:
+ 	destroy_component(instance, component);
++	release_all_event_contexts(component);
+ unlock:
+ 	if (component)
+ 		component->in_use = 0;
+@@ -1882,7 +1900,7 @@ EXPORT_SYMBOL_GPL(vchiq_mmal_component_i
+ int vchiq_mmal_component_finalise(struct vchiq_mmal_instance *instance,
+ 				  struct vchiq_mmal_component *component)
+ {
+-	int ret, idx;
++	int ret;
+ 
+ 	if (mutex_lock_interruptible(&instance->vchiq_mutex))
+ 		return -EINTR;
+@@ -1894,14 +1912,7 @@ int vchiq_mmal_component_finalise(struct
+ 
+ 	component->in_use = 0;
+ 
+-	for (idx = 0; idx < component->inputs; idx++)
+-		free_event_context(&component->input[idx]);
+-	for (idx = 0; idx < component->outputs; idx++)
+-		free_event_context(&component->output[idx]);
+-	for (idx = 0; idx < component->clocks; idx++)
+-		free_event_context(&component->clock[idx]);
+-
+-	free_event_context(&component->control);
++	release_all_event_contexts(component);
+ 
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0123-w1-w1-gpio-Make-GPIO-an-output-for-strong-pullup.patch b/target/linux/bcm27xx/patches-5.10/950-0123-w1-w1-gpio-Make-GPIO-an-output-for-strong-pullup.patch
new file mode 100644
index 0000000000..286498cc88
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0123-w1-w1-gpio-Make-GPIO-an-output-for-strong-pullup.patch
@@ -0,0 +1,27 @@
+From c8ce94db62682da391a3c0d1e148b1a5a959b7e1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 12 Jun 2019 17:15:05 +0100
+Subject: [PATCH] w1: w1-gpio: Make GPIO an output for strong pullup
+
+The logic to drive the data line high to implement a strong pullup
+assumed that the pin was already an output - setting a value does
+not change an input.
+
+See: https://github.com/raspberrypi/firmware/issues/1143
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/w1/masters/w1-gpio.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/w1/masters/w1-gpio.c
++++ b/drivers/w1/masters/w1-gpio.c
+@@ -30,7 +30,7 @@ static u8 w1_gpio_set_pullup(void *data,
+ 			 * This will OVERRIDE open drain emulation and force-pull
+ 			 * the line high for some time.
+ 			 */
+-			gpiod_set_raw_value(pdata->gpiod, 1);
++			gpiod_direction_output_raw(pdata->gpiod, 1);
+ 			msleep(pdata->pullup_duration);
+ 			/*
+ 			 * This will simply set the line as input since we are doing
diff --git a/target/linux/bcm27xx/patches-5.10/950-0124-arm-bcm2835-Fix-FIQ-early-ioremap.patch b/target/linux/bcm27xx/patches-5.10/950-0124-arm-bcm2835-Fix-FIQ-early-ioremap.patch
new file mode 100644
index 0000000000..5fc558d36b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0124-arm-bcm2835-Fix-FIQ-early-ioremap.patch
@@ -0,0 +1,73 @@
+From 8bf21a7f5449fde59e4c9772db0696b3dc4cfaef Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 20 Feb 2019 08:49:39 +0000
+Subject: [PATCH] arm: bcm2835: Fix FIQ early ioremap
+
+The ioremapping creates mappings within the vmalloc area. The
+equivalent early function, create_mapping, now checks that the
+requested explicit virtual address is between VMALLOC_START and
+VMALLOC_END. As there is no reason to have any correlation between
+the physical and virtual addresses, put the required mappings at
+VMALLOC_START and above.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 21 +++++++++++++++------
+ 1 file changed, 15 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -5,17 +5,20 @@
+ 
+ #include <linux/init.h>
+ #include <linux/irqchip.h>
++#include <linux/mm.h>
+ #include <linux/of_address.h>
+ #include <linux/of_fdt.h>
+ #include <asm/system_info.h>
+ 
+ #include <asm/mach/arch.h>
+ #include <asm/mach/map.h>
++#include <asm/memory.h>
++#include <asm/pgtable.h>
+ 
+ #include "platsmp.h"
+ 
+-#define BCM2835_USB_VIRT_BASE   0xf0980000
+-#define BCM2835_USB_VIRT_MPHI   0xf0006000
++#define BCM2835_USB_VIRT_BASE   (VMALLOC_START)
++#define BCM2835_USB_VIRT_MPHI   (VMALLOC_START + 0x10000)
+ 
+ static void __init bcm2835_init(void)
+ {
+@@ -74,20 +77,26 @@ static int __init bcm2835_map_usb(unsign
+ 
+ static void __init bcm2835_map_io(void)
+ {
+-	const __be32 *ranges;
++	const __be32 *ranges, *address_cells;
++	unsigned long root, addr_cells;
+ 	int soc, len;
+ 	unsigned long p2b_offset;
+ 
+ 	debug_ll_io_init();
+ 
++	root = of_get_flat_dt_root();
+ 	/* Find out how to map bus to physical address first from soc/ranges */
+-	soc = of_get_flat_dt_subnode_by_name(of_get_flat_dt_root(), "soc");
++	soc = of_get_flat_dt_subnode_by_name(root, "soc");
+ 	if (soc < 0)
+ 		return;
++	address_cells = of_get_flat_dt_prop(root, "#address-cells", &len);
++	if (!address_cells || len < (sizeof(unsigned long)))
++		return;
++	addr_cells = be32_to_cpu(address_cells[0]);
+ 	ranges = of_get_flat_dt_prop(soc, "ranges", &len);
+-	if (!ranges || len < (sizeof(unsigned long) * 3))
++	if (!ranges || len < (sizeof(unsigned long) * (2 + addr_cells)))
+ 		return;
+-	p2b_offset = be32_to_cpu(ranges[0]) - be32_to_cpu(ranges[1]);
++	p2b_offset = be32_to_cpu(ranges[0]) - be32_to_cpu(ranges[addr_cells]);
+ 
+ 	/* Now search for bcm2708-usb node in device tree */
+ 	of_scan_flat_dt(bcm2835_map_usb, &p2b_offset);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch b/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch
new file mode 100644
index 0000000000..6c36ec4e6d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0125-arm-bcm2835-DMA-can-only-address-1GB.patch
@@ -0,0 +1,25 @@
+From eac607290fee8b1bcd08c48ac49f089f41a0e696 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 29 May 2019 15:47:42 +0100
+Subject: [PATCH] arm: bcm2835: DMA can only address 1GB
+
+The legacy peripherals can only address the first gigabyte of RAM, so
+ensure that DMA allocations are restricted to that region.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -114,6 +114,9 @@ static const char * const bcm2835_compat
+ };
+ 
+ DT_MACHINE_START(BCM2835, "BCM2835")
++#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
++	.dma_zone_size	= SZ_1G,
++#endif
+ 	.map_io = bcm2835_map_io,
+ 	.init_machine = bcm2835_init,
+ 	.dt_compat = bcm2835_compat,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0126-hwrng-iproc-rng200-Add-BCM2838-support.patch b/target/linux/bcm27xx/patches-5.10/950-0126-hwrng-iproc-rng200-Add-BCM2838-support.patch
new file mode 100644
index 0000000000..85585199f9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0126-hwrng-iproc-rng200-Add-BCM2838-support.patch
@@ -0,0 +1,153 @@
+From aae625342e4c3647a1fe7983cac36d658e714602 Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+Date: Sat, 4 May 2019 17:06:15 +0200
+Subject: [PATCH] hwrng: iproc-rng200: Add BCM2838 support
+
+The HWRNG on the BCM2838 is compatible to iproc-rng200, so add the
+support to this driver instead of bcm2835-rng.
+
+Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
+
+hwrng: iproc-rng200: Correct SoC name
+
+The Pi 4 SoC is called BCM2711, not BCM2838.
+
+Fixes: "hwrng: iproc-rng200: Add BCM2838 support"
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/char/hw_random/Kconfig        |  2 +-
+ drivers/char/hw_random/iproc-rng200.c | 78 +++++++++++++++++++++++++--
+ 2 files changed, 76 insertions(+), 4 deletions(-)
+
+--- a/drivers/char/hw_random/Kconfig
++++ b/drivers/char/hw_random/Kconfig
+@@ -104,7 +104,7 @@ config HW_RANDOM_IPROC_RNG200
+ 	default HW_RANDOM
+ 	help
+ 	  This driver provides kernel-side support for the RNG200
+-	  hardware found on the Broadcom iProc and STB SoCs.
++	  hardware found on the Broadcom iProc, BCM2711 and STB SoCs.
+ 
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called iproc-rng200
+--- a/drivers/char/hw_random/iproc-rng200.c
++++ b/drivers/char/hw_random/iproc-rng200.c
+@@ -29,6 +29,7 @@
+ #define RNG_CTRL_RNG_RBGEN_MASK				0x00001FFF
+ #define RNG_CTRL_RNG_RBGEN_ENABLE			0x00000001
+ #define RNG_CTRL_RNG_RBGEN_DISABLE			0x00000000
++#define RNG_CTRL_RNG_DIV_CTRL_SHIFT			13
+ 
+ #define RNG_SOFT_RESET_OFFSET				0x04
+ #define RNG_SOFT_RESET					0x00000001
+@@ -36,16 +37,23 @@
+ #define RBG_SOFT_RESET_OFFSET				0x08
+ #define RBG_SOFT_RESET					0x00000001
+ 
++#define RNG_TOTAL_BIT_COUNT_OFFSET			0x0C
++
++#define RNG_TOTAL_BIT_COUNT_THRESHOLD_OFFSET		0x10
++
+ #define RNG_INT_STATUS_OFFSET				0x18
+ #define RNG_INT_STATUS_MASTER_FAIL_LOCKOUT_IRQ_MASK	0x80000000
+ #define RNG_INT_STATUS_STARTUP_TRANSITIONS_MET_IRQ_MASK	0x00020000
+ #define RNG_INT_STATUS_NIST_FAIL_IRQ_MASK		0x00000020
+ #define RNG_INT_STATUS_TOTAL_BITS_COUNT_IRQ_MASK	0x00000001
+ 
++#define RNG_INT_ENABLE_OFFSET				0x1C
++
+ #define RNG_FIFO_DATA_OFFSET				0x20
+ 
+ #define RNG_FIFO_COUNT_OFFSET				0x24
+ #define RNG_FIFO_COUNT_RNG_FIFO_COUNT_MASK		0x000000FF
++#define RNG_FIFO_COUNT_RNG_FIFO_THRESHOLD_SHIFT		8
+ 
+ struct iproc_rng200_dev {
+ 	struct hwrng rng;
+@@ -166,6 +174,64 @@ static int iproc_rng200_init(struct hwrn
+ 	return 0;
+ }
+ 
++static int bcm2711_rng200_read(struct hwrng *rng, void *buf, size_t max,
++			       bool wait)
++{
++	struct iproc_rng200_dev *priv = to_rng_priv(rng);
++	u32 max_words = max / sizeof(u32);
++	u32 num_words, count, val;
++
++	/* ensure warm up period has elapsed */
++	while (1) {
++		val = ioread32(priv->base + RNG_TOTAL_BIT_COUNT_OFFSET);
++		if (val > 16)
++			break;
++		cpu_relax();
++	}
++
++	/* ensure fifo is not empty */
++	while (1) {
++		num_words = ioread32(priv->base + RNG_FIFO_COUNT_OFFSET) &
++			    RNG_FIFO_COUNT_RNG_FIFO_COUNT_MASK;
++		if (num_words)
++			break;
++		if (!wait)
++			return 0;
++		cpu_relax();
++	}
++
++	if (num_words > max_words)
++		num_words = max_words;
++
++	for (count = 0; count < num_words; count++) {
++		((u32 *)buf)[count] = ioread32(priv->base +
++					       RNG_FIFO_DATA_OFFSET);
++	}
++
++	return num_words * sizeof(u32);
++}
++
++static int bcm2711_rng200_init(struct hwrng *rng)
++{
++	struct iproc_rng200_dev *priv = to_rng_priv(rng);
++	uint32_t val;
++
++	if (ioread32(priv->base + RNG_CTRL_OFFSET) & RNG_CTRL_RNG_RBGEN_MASK)
++		return 0;
++
++	/* initial numbers generated are "less random" so will be discarded */
++	val = 0x40000;
++	iowrite32(val, priv->base + RNG_TOTAL_BIT_COUNT_THRESHOLD_OFFSET);
++	/* min fifo count to generate full interrupt */
++	val = 2 << RNG_FIFO_COUNT_RNG_FIFO_THRESHOLD_SHIFT;
++	iowrite32(val, priv->base + RNG_FIFO_COUNT_OFFSET);
++	/* enable the rng - 1Mhz sample rate */
++	val = (0x3 << RNG_CTRL_RNG_DIV_CTRL_SHIFT) | RNG_CTRL_RNG_RBGEN_MASK;
++	iowrite32(val, priv->base + RNG_CTRL_OFFSET);
++
++	return 0;
++}
++
+ static void iproc_rng200_cleanup(struct hwrng *rng)
+ {
+ 	struct iproc_rng200_dev *priv = to_rng_priv(rng);
+@@ -195,11 +261,17 @@ static int iproc_rng200_probe(struct pla
+ 		return PTR_ERR(priv->base);
+ 	}
+ 
+-	priv->rng.name = "iproc-rng200";
+-	priv->rng.read = iproc_rng200_read;
+-	priv->rng.init = iproc_rng200_init;
++	priv->rng.name = pdev->name;
+ 	priv->rng.cleanup = iproc_rng200_cleanup;
+ 
++	if (of_device_is_compatible(dev->of_node, "brcm,bcm2711-rng200")) {
++		priv->rng.init = bcm2711_rng200_init;
++		priv->rng.read = bcm2711_rng200_read;
++	} else {
++		priv->rng.init = iproc_rng200_init;
++		priv->rng.read = iproc_rng200_read;
++	}
++
+ 	/* Register driver */
+ 	ret = devm_hwrng_register(dev, &priv->rng);
+ 	if (ret) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0127-mmc-sdhci-iproc-Fix-vmmc-regulators-on-iProc.patch b/target/linux/bcm27xx/patches-5.10/950-0127-mmc-sdhci-iproc-Fix-vmmc-regulators-on-iProc.patch
new file mode 100644
index 0000000000..770dfc6db7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0127-mmc-sdhci-iproc-Fix-vmmc-regulators-on-iProc.patch
@@ -0,0 +1,46 @@
+From efc6e571660a0d0ca53fb603cc4f132481e8977f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 2 Aug 2019 15:20:11 +0100
+Subject: [PATCH] mmc: sdhci-iproc: Fix vmmc regulators on iProc
+
+The Linux support for controlling card power via regulators appears to
+be contentious. I would argue that the default behaviour is contrary to
+the SDHCI spec - turning off the power writes a reserved value to the
+SD Bus Voltage Select field of the Power Control Register, which
+seems to kill the Arasan/iProc controller - but fortunately there is a
+hook in sdhci_ops to override the behaviour. Borrow the implementation
+from sdhci_arasan_set_power.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/mmc/host/sdhci-iproc.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+--- a/drivers/mmc/host/sdhci-iproc.c
++++ b/drivers/mmc/host/sdhci-iproc.c
+@@ -173,6 +173,17 @@ static unsigned int sdhci_iproc_get_max_
+ 		return pltfm_host->clock;
+ }
+ 
++static void sdhci_iproc_set_power(struct sdhci_host *host, unsigned char mode,
++				  unsigned short vdd)
++{
++	if (!IS_ERR(host->mmc->supply.vmmc)) {
++		struct mmc_host *mmc = host->mmc;
++
++		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
++	}
++	sdhci_set_power_noreg(host, mode, vdd);
++}
++
+ static const struct sdhci_ops sdhci_iproc_ops = {
+ 	.set_clock = sdhci_set_clock,
+ 	.get_max_clock = sdhci_iproc_get_max_clock,
+@@ -190,6 +201,7 @@ static const struct sdhci_ops sdhci_ipro
+ 	.write_b = sdhci_iproc_writeb,
+ 	.set_clock = sdhci_set_clock,
+ 	.get_max_clock = sdhci_iproc_get_max_clock,
++	.set_power = sdhci_iproc_set_power,
+ 	.set_bus_width = sdhci_set_bus_width,
+ 	.reset = sdhci_reset,
+ 	.set_uhs_signaling = sdhci_set_uhs_signaling,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0128-vchiq-Add-36-bit-address-support.patch b/target/linux/bcm27xx/patches-5.10/950-0128-vchiq-Add-36-bit-address-support.patch
new file mode 100644
index 0000000000..bfe6fc3869
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0128-vchiq-Add-36-bit-address-support.patch
@@ -0,0 +1,202 @@
+From 4237f040ec6d54ef0b3782415d354e5b9a023873 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 1 Nov 2018 17:31:37 +0000
+Subject: [PATCH] vchiq: Add 36-bit address support
+
+Conditional on a new compatible string, change the pagelist encoding
+such that the top 24 bits are the pfn, leaving 8 bits for run length
+(-1).
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+
+staging/vchiq_arm: Fix bcm2711 compatible string
+
+Fixes: "vchiq: Add 36-bit address support"
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../interface/vchiq_arm/vchiq_2835_arm.c      | 90 ++++++++++++++-----
+ .../interface/vchiq_arm/vchiq_arm.c           |  6 ++
+ .../interface/vchiq_arm/vchiq_arm.h           |  1 +
+ 3 files changed, 75 insertions(+), 22 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+@@ -16,6 +16,8 @@
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ #define TOTAL_SLOTS (VCHIQ_SLOT_ZERO_SLOTS + 2 * 32)
++#define VC_SAFE(x) (g_use_36bit_addrs ? ((u32)(x) | 0xc0000000) : (u32)(x))
++#define IS_VC_SAFE(x) (g_use_36bit_addrs ? !((x) & ~0x3fffffffull) : 1)
+ 
+ #include "vchiq_arm.h"
+ #include "vchiq_connected.h"
+@@ -58,6 +60,7 @@ static void __iomem *g_regs;
+  * of 32.
+  */
+ static unsigned int g_cache_line_size = 32;
++static unsigned int g_use_36bit_addrs = 0;
+ static unsigned int g_fragments_size;
+ static char *g_fragments_base;
+ static char *g_free_fragments;
+@@ -100,6 +103,8 @@ int vchiq_platform_init(struct platform_
+ 	g_cache_line_size = drvdata->cache_line_size;
+ 	g_fragments_size = 2 * g_cache_line_size;
+ 
++	g_use_36bit_addrs = (dev->dma_pfn_offset == 0);
++
+ 	/* Allocate space for the channels in coherent memory */
+ 	slot_mem_size = PAGE_ALIGN(TOTAL_SLOTS * VCHIQ_SLOT_SIZE);
+ 	frag_mem_size = PAGE_ALIGN(g_fragments_size * MAX_FRAGMENTS);
+@@ -111,14 +116,21 @@ int vchiq_platform_init(struct platform_
+ 		return -ENOMEM;
+ 	}
+ 
++	if (!IS_VC_SAFE(slot_phys)) {
++		dev_err(dev, "allocated DMA memory %pad is not VC-safe\n",
++			&slot_phys);
++		return -ENOMEM;
++	}
++
+ 	WARN_ON(((unsigned long)slot_mem & (PAGE_SIZE - 1)) != 0);
++	channelbase = VC_SAFE(slot_phys);
+ 
+ 	vchiq_slot_zero = vchiq_init_slots(slot_mem, slot_mem_size);
+ 	if (!vchiq_slot_zero)
+ 		return -EINVAL;
+ 
+ 	vchiq_slot_zero->platform_data[VCHIQ_PLATFORM_FRAGMENTS_OFFSET_IDX] =
+-		(int)slot_phys + slot_mem_size;
++		channelbase + slot_mem_size;
+ 	vchiq_slot_zero->platform_data[VCHIQ_PLATFORM_FRAGMENTS_COUNT_IDX] =
+ 		MAX_FRAGMENTS;
+ 
+@@ -151,7 +163,6 @@ int vchiq_platform_init(struct platform_
+ 	}
+ 
+ 	/* Send the base address of the slots to VideoCore */
+-	channelbase = slot_phys;
+ 	err = rpi_firmware_property(fw, RPI_FIRMWARE_VCHIQ_INIT,
+ 				    &channelbase, sizeof(channelbase));
+ 	if (err || channelbase) {
+@@ -229,7 +240,7 @@ vchiq_prepare_bulk_data(struct vchiq_bul
+ 	if (!pagelistinfo)
+ 		return VCHIQ_ERROR;
+ 
+-	bulk->data = pagelistinfo->dma_addr;
++	bulk->data = (void *)VC_SAFE(pagelistinfo->dma_addr);
+ 
+ 	/*
+ 	 * Store the pagelistinfo address in remote_data,
+@@ -447,25 +458,60 @@ create_pagelist(char *buf, char __user *
+ 
+ 	/* Combine adjacent blocks for performance */
+ 	k = 0;
+-	for_each_sg(scatterlist, sg, dma_buffers, i) {
+-		u32 len = sg_dma_len(sg);
+-		u32 addr = sg_dma_address(sg);
+-
+-		/* Note: addrs is the address + page_count - 1
+-		 * The firmware expects blocks after the first to be page-
+-		 * aligned and a multiple of the page size
+-		 */
+-		WARN_ON(len == 0);
+-		WARN_ON(i && (i != (dma_buffers - 1)) && (len & ~PAGE_MASK));
+-		WARN_ON(i && (addr & ~PAGE_MASK));
+-		if (k > 0 &&
+-		    ((addrs[k - 1] & PAGE_MASK) +
+-		     (((addrs[k - 1] & ~PAGE_MASK) + 1) << PAGE_SHIFT))
+-		    == (addr & PAGE_MASK))
+-			addrs[k - 1] += ((len + PAGE_SIZE - 1) >> PAGE_SHIFT);
+-		else
+-			addrs[k++] = (addr & PAGE_MASK) |
+-				(((len + PAGE_SIZE - 1) >> PAGE_SHIFT) - 1);
++	if (g_use_36bit_addrs) {
++		for_each_sg(scatterlist, sg, dma_buffers, i) {
++			u32 len = sg_dma_len(sg);
++			u64 addr = sg_dma_address(sg);
++			u32 page_id = (u32)((addr >> 4) & ~0xff);
++			u32 sg_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
++
++			/* Note: addrs is the address + page_count - 1
++			 * The firmware expects blocks after the first to be page-
++			 * aligned and a multiple of the page size
++			 */
++			WARN_ON(len == 0);
++			WARN_ON(i &&
++				(i != (dma_buffers - 1)) && (len & ~PAGE_MASK));
++			WARN_ON(i && (addr & ~PAGE_MASK));
++			WARN_ON(upper_32_bits(addr) > 0xf);
++			if (k > 0 &&
++			    ((addrs[k - 1] & ~0xff) +
++			     (((addrs[k - 1] & 0xff) + 1) << 8)
++			     == page_id)) {
++				u32 inc_pages = min(sg_pages,
++						    0xff - (addrs[k - 1] & 0xff));
++				addrs[k - 1] += inc_pages;
++				page_id += inc_pages << 8;
++				sg_pages -= inc_pages;
++			}
++			while (sg_pages) {
++				u32 inc_pages = min(sg_pages, 0x100u);
++				addrs[k++] = page_id | (inc_pages - 1);
++				page_id += inc_pages << 8;
++				sg_pages -= inc_pages;
++			}
++		}
++	} else {
++		for_each_sg(scatterlist, sg, dma_buffers, i) {
++			u32 len = sg_dma_len(sg);
++			u32 addr = VC_SAFE(sg_dma_address(sg));
++			u32 new_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
++
++			/* Note: addrs is the address + page_count - 1
++			 * The firmware expects blocks after the first to be page-
++			 * aligned and a multiple of the page size
++			 */
++			WARN_ON(len == 0);
++			WARN_ON(i && (i != (dma_buffers - 1)) && (len & ~PAGE_MASK));
++			WARN_ON(i && (addr & ~PAGE_MASK));
++			if (k > 0 &&
++			    ((addrs[k - 1] & PAGE_MASK) +
++			     (((addrs[k - 1] & ~PAGE_MASK) + 1) << PAGE_SHIFT))
++			    == (addr & PAGE_MASK))
++				addrs[k - 1] += new_pages;
++			else
++				addrs[k++] = (addr & PAGE_MASK) | (new_pages - 1);
++		}
+ 	}
+ 
+ 	/* Partial cache lines (fragments) require special measures */
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -118,6 +118,11 @@ static struct vchiq_drvdata bcm2836_drvd
+ 	.cache_line_size = 64,
+ };
+ 
++static struct vchiq_drvdata bcm2711_drvdata = {
++	.cache_line_size = 64,
++	.use_36bit_addrs = true,
++};
++
+ static const char *const ioctl_names[] = {
+ 	"CONNECT",
+ 	"SHUTDOWN",
+@@ -2679,6 +2684,7 @@ void vchiq_platform_conn_state_changed(s
+ static const struct of_device_id vchiq_of_match[] = {
+ 	{ .compatible = "brcm,bcm2835-vchiq", .data = &bcm2835_drvdata },
+ 	{ .compatible = "brcm,bcm2836-vchiq", .data = &bcm2836_drvdata },
++	{ .compatible = "brcm,bcm2711-vchiq", .data = &bcm2711_drvdata },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, vchiq_of_match);
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
+@@ -52,6 +52,7 @@ struct vchiq_arm_state {
+ 
+ struct vchiq_drvdata {
+ 	const unsigned int cache_line_size;
++	const bool use_36bit_addrs;
+ 	struct rpi_firmware *fw;
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0129-bcm2835-pcm.c-Support-multichannel-audio.patch b/target/linux/bcm27xx/patches-5.10/950-0129-bcm2835-pcm.c-Support-multichannel-audio.patch
new file mode 100644
index 0000000000..58be800b80
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0129-bcm2835-pcm.c-Support-multichannel-audio.patch
@@ -0,0 +1,46 @@
+From 968742728020752788d4b3a6cd75c977db161b46 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 30 Apr 2019 19:15:30 +0100
+Subject: [PATCH] bcm2835-pcm.c: Support multichannel audio
+
+---
+ .../vc04_services/bcm2835-audio/bcm2835-pcm.c   | 17 +++++++++--------
+ 1 file changed, 9 insertions(+), 8 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+@@ -14,9 +14,9 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
++	.rates = SNDRV_PCM_RATE_CONTINUOUS |  SNDRV_PCM_RATE_8000_192000,
+ 	.rate_min = 8000,
+-	.rate_max = 48000,
++	.rate_max = 192000,
+ 	.channels_min = 1,
+ 	.channels_max = 2,
+ 	.buffer_bytes_max = 128 * 1024,
+@@ -31,15 +31,16 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
+-	SNDRV_PCM_RATE_48000,
++	.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
++	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
++	SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
+ 	.rate_min = 44100,
+-	.rate_max = 48000,
++	.rate_max = 192000,
+ 	.channels_min = 2,
+-	.channels_max = 2,
+-	.buffer_bytes_max = 128 * 1024,
++	.channels_max = 8,
++	.buffer_bytes_max = 512 * 1024,
+ 	.period_bytes_min = 1 * 1024,
+-	.period_bytes_max = 128 * 1024,
++	.period_bytes_max = 512 * 1024,
+ 	.periods_min = 1,
+ 	.periods_max = 128,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0130-bcmgenet-constrain-max-DMA-burst-length.patch b/target/linux/bcm27xx/patches-5.10/950-0130-bcmgenet-constrain-max-DMA-burst-length.patch
new file mode 100644
index 0000000000..1aef72804e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0130-bcmgenet-constrain-max-DMA-burst-length.patch
@@ -0,0 +1,20 @@
+From adfa8e90db935da2b8bdfa9b8e8a3070f6c05818 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Wed, 12 Sep 2018 14:44:53 +0100
+Subject: [PATCH] bcmgenet: constrain max DMA burst length
+
+---
+ drivers/net/ethernet/broadcom/genet/bcmgenet.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+@@ -29,7 +29,7 @@
+ #define ENET_PAD		8
+ #define ENET_MAX_MTU_SIZE	(ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \
+ 				 ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD)
+-#define DMA_MAX_BURST_LENGTH    0x10
++#define DMA_MAX_BURST_LENGTH    0x08
+ 
+ /* misc. configuration */
+ #define MAX_NUM_OF_FS_RULES		16
diff --git a/target/linux/bcm27xx/patches-5.10/950-0131-bcmgenet-Better-coalescing-parameter-defaults.patch b/target/linux/bcm27xx/patches-5.10/950-0131-bcmgenet-Better-coalescing-parameter-defaults.patch
new file mode 100644
index 0000000000..09164c714d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0131-bcmgenet-Better-coalescing-parameter-defaults.patch
@@ -0,0 +1,43 @@
+From c69b192667d50c317bab33e283e7cfce1622e499 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 27 Mar 2019 13:45:46 +0000
+Subject: [PATCH] bcmgenet: Better coalescing parameter defaults
+
+Set defaults for TX and RX packet coalescing to be equivalent to:
+
+  # ethtool -C eth0 tx-frames 10
+  # ethtool -C eth0 rx-usecs 50
+
+This may be something we want to set via DT parameters in the
+future.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/ethernet/broadcom/genet/bcmgenet.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+@@ -2595,7 +2595,7 @@ static void bcmgenet_init_tx_ring(struct
+ 
+ 	bcmgenet_tdma_ring_writel(priv, index, 0, TDMA_PROD_INDEX);
+ 	bcmgenet_tdma_ring_writel(priv, index, 0, TDMA_CONS_INDEX);
+-	bcmgenet_tdma_ring_writel(priv, index, 1, DMA_MBUF_DONE_THRESH);
++	bcmgenet_tdma_ring_writel(priv, index, 10, DMA_MBUF_DONE_THRESH);
+ 	/* Disable rate control for now */
+ 	bcmgenet_tdma_ring_writel(priv, index, flow_period_val,
+ 				  TDMA_FLOW_PERIOD);
+@@ -4058,9 +4058,12 @@ static int bcmgenet_probe(struct platfor
+ 	netif_set_real_num_rx_queues(priv->dev, priv->hw_params->rx_queues + 1);
+ 
+ 	/* Set default coalescing parameters */
+-	for (i = 0; i < priv->hw_params->rx_queues; i++)
++	for (i = 0; i < priv->hw_params->rx_queues; i++) {
+ 		priv->rx_rings[i].rx_max_coalesced_frames = 1;
++		priv->rx_rings[i].rx_coalesce_usecs = 50;
++	}
+ 	priv->rx_rings[DESC_INDEX].rx_max_coalesced_frames = 1;
++	priv->rx_rings[DESC_INDEX].rx_coalesce_usecs = 50;
+ 
+ 	/* libphy will determine the link state */
+ 	netif_carrier_off(dev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0132-net-genet-enable-link-energy-detect-powerdown-for-ex.patch b/target/linux/bcm27xx/patches-5.10/950-0132-net-genet-enable-link-energy-detect-powerdown-for-ex.patch
new file mode 100644
index 0000000000..4c6fbe89de
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0132-net-genet-enable-link-energy-detect-powerdown-for-ex.patch
@@ -0,0 +1,31 @@
+From 79bf7ef15016f04a100973b6d207d2aa63552898 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 14 May 2019 17:17:59 +0100
+Subject: [PATCH] net: genet: enable link energy detect powerdown for
+ external PHYs
+
+There are several warts surrounding bcmgenet_mii_probe() as this
+function is called from ndo_open, but it's calling registration-type
+functions. The probe should be called at probe time and refactored
+such that the PHY device data can be extracted to limit the scope
+of this flag to Broadcom PHYs.
+
+For now, pass this flag in as it puts our attached PHY into a low-power
+state when disconnected.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/net/ethernet/broadcom/genet/bcmmii.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
+@@ -293,6 +293,8 @@ int bcmgenet_mii_probe(struct net_device
+ 	/* Communicate the integrated PHY revision */
+ 	if (priv->internal_phy)
+ 		phy_flags = priv->gphy_rev;
++	else
++		phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE;
+ 
+ 	/* Initialize link state variables that bcmgenet_mii_setup() uses */
+ 	priv->old_link = -1;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0133-spi-bcm2835-enable-shared-interrupt-support.patch b/target/linux/bcm27xx/patches-5.10/950-0133-spi-bcm2835-enable-shared-interrupt-support.patch
new file mode 100644
index 0000000000..ce9872f645
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0133-spi-bcm2835-enable-shared-interrupt-support.patch
@@ -0,0 +1,35 @@
+From aac689d308b3f6dff8a8ccbd85f8a32078a92318 Mon Sep 17 00:00:00 2001
+From: Martin Sperl <kernel@martin.sperl.org>
+Date: Mon, 13 May 2019 11:05:27 +0000
+Subject: [PATCH] spi: bcm2835: enable shared interrupt support
+
+Add shared interrupt support for this driver.
+
+Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
+---
+ drivers/spi/spi-bcm2835.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -379,6 +379,10 @@ static irqreturn_t bcm2835_spi_interrupt
+ 	if (bs->tx_len && cs & BCM2835_SPI_CS_DONE)
+ 		bcm2835_wr_fifo_blind(bs, BCM2835_SPI_FIFO_SIZE);
+ 
++	/* check if we got interrupt enabled */
++	if (!(bcm2835_rd(bs, BCM2835_SPI_CS) & BCM2835_SPI_CS_INTR))
++		return IRQ_NONE;
++
+ 	/* Read as many bytes as possible from FIFO */
+ 	bcm2835_rd_fifo(bs);
+ 	/* Write as many bytes as possible to FIFO */
+@@ -1329,7 +1333,8 @@ static int bcm2835_spi_probe(struct plat
+ 	bcm2835_wr(bs, BCM2835_SPI_CS,
+ 		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
+ 
+-	err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt, 0,
++	err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt,
++			       IRQF_SHARED,
+ 			       dev_name(&pdev->dev), bs);
+ 	if (err) {
+ 		dev_err(&pdev->dev, "could not request IRQ: %d\n", err);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0134-clk-bcm2835-Don-t-wait-for-pllh-lock.patch b/target/linux/bcm27xx/patches-5.10/950-0134-clk-bcm2835-Don-t-wait-for-pllh-lock.patch
new file mode 100644
index 0000000000..3a8d43665b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0134-clk-bcm2835-Don-t-wait-for-pllh-lock.patch
@@ -0,0 +1,38 @@
+From c1fb629fa486608edab88fb4aa9ab54dd2dcb52c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 23 Jan 2019 16:11:50 +0000
+Subject: [PATCH] clk-bcm2835: Don't wait for pllh lock
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 18 ++++++++++--------
+ 1 file changed, 10 insertions(+), 8 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -644,15 +644,17 @@ static int bcm2835_pll_on(struct clk_hw
+ 	spin_unlock(&cprman->regs_lock);
+ 
+ 	/* Wait for the PLL to lock. */
+-	timeout = ktime_add_ns(ktime_get(), LOCK_TIMEOUT_NS);
+-	while (!(cprman_read(cprman, CM_LOCK) & data->lock_mask)) {
+-		if (ktime_after(ktime_get(), timeout)) {
+-			dev_err(cprman->dev, "%s: couldn't lock PLL\n",
+-				clk_hw_get_name(hw));
+-			return -ETIMEDOUT;
+-		}
++	if (strcmp(data->name, "pllh")) {
++		timeout = ktime_add_ns(ktime_get(), LOCK_TIMEOUT_NS);
++		while (!(cprman_read(cprman, CM_LOCK) & data->lock_mask)) {
++			if (ktime_after(ktime_get(), timeout)) {
++				dev_err(cprman->dev, "%s: couldn't lock PLL\n",
++					clk_hw_get_name(hw));
++				return -ETIMEDOUT;
++			}
+ 
+-		cpu_relax();
++			cpu_relax();
++		}
+ 	}
+ 
+ 	cprman_write(cprman, data->a2w_ctrl_reg,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0135-soc-bcm-bcm2835-pm-Add-support-for-2711.patch b/target/linux/bcm27xx/patches-5.10/950-0135-soc-bcm-bcm2835-pm-Add-support-for-2711.patch
new file mode 100644
index 0000000000..4624dd2c1c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0135-soc-bcm-bcm2835-pm-Add-support-for-2711.patch
@@ -0,0 +1,102 @@
+From ca09b9e400f42e5be7d0646237f6ada07ee6c01c Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Fri, 11 Jan 2019 17:31:07 -0800
+Subject: [PATCH] soc: bcm: bcm2835-pm: Add support for 2711.
+
+Without the actual power management part any more, there's a lot less
+to set up for V3D.  We just need to clear the RSTN field for the power
+domain, and expose the reset controller for toggling it again.
+
+This is definitely incomplete -- the old ISP and H264 is in the old
+bridge, but since we have no consumers of it I've just done the
+minimum to get V3D working.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/mfd/bcm2835-pm.c        | 11 +++++++++++
+ drivers/soc/bcm/bcm2835-power.c | 22 ++++++++++++++++++++++
+ include/linux/mfd/bcm2835-pm.h  |  1 +
+ 3 files changed, 34 insertions(+)
+
+--- a/drivers/mfd/bcm2835-pm.c
++++ b/drivers/mfd/bcm2835-pm.c
+@@ -50,6 +50,17 @@ static int bcm2835_pm_probe(struct platf
+ 	if (ret)
+ 		return ret;
+ 
++	/* Map the ARGON ASB regs if present. */
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
++	if (res) {
++		pm->arg_asb = devm_ioremap_resource(dev, res);
++		if (IS_ERR(pm->arg_asb)) {
++			dev_err(dev, "Failed to map ARGON ASB: %ld\n",
++				PTR_ERR(pm->arg_asb));
++			return PTR_ERR(pm->arg_asb);
++		}
++	}
++
+ 	/* We'll use the presence of the AXI ASB regs in the
+ 	 * bcm2835-pm binding as the key for whether we can reference
+ 	 * the full PM register range and support power domains.
+--- a/drivers/soc/bcm/bcm2835-power.c
++++ b/drivers/soc/bcm/bcm2835-power.c
+@@ -143,6 +143,8 @@ struct bcm2835_power {
+ 	/* AXI Async bridge registers. */
+ 	void __iomem		*asb;
+ 
++	bool is_2711;
++
+ 	struct genpd_onecell_data pd_xlate;
+ 	struct bcm2835_power_domain domains[BCM2835_POWER_DOMAIN_COUNT];
+ 	struct reset_controller_dev reset;
+@@ -192,6 +194,10 @@ static int bcm2835_power_power_off(struc
+ {
+ 	struct bcm2835_power *power = pd->power;
+ 
++	/* 2711 has no power domains above the reset controller. */
++	if (power->is_2711)
++		return 0;
++
+ 	/* Enable functional isolation */
+ 	PM_WRITE(pm_reg, PM_READ(pm_reg) & ~PM_ISFUNC);
+ 
+@@ -213,6 +219,10 @@ static int bcm2835_power_power_on(struct
+ 	int inrush;
+ 	bool powok;
+ 
++	/* 2711 has no power domains above the reset controller. */
++	if (power->is_2711)
++		return 0;
++
+ 	/* If it was already powered on by the fw, leave it that way. */
+ 	if (PM_READ(pm_reg) & PM_POWUP)
+ 		return 0;
+@@ -627,6 +637,18 @@ static int bcm2835_power_probe(struct pl
+ 	power->base = pm->base;
+ 	power->asb = pm->asb;
+ 
++	/* 2711 hack: the new ARGON ASB took over V3D, which is our
++	 * only consumer of this driver so far.  The old ASB seems to
++	 * still be present with ISP and H264 bits but no V3D, but I
++	 * don't know if that's real or not.  The V3D is in the same
++	 * place in the new ASB as the old one, so just poke the new
++	 * one for now.
++	 */
++	if (pm->arg_asb) {
++		power->asb = pm->arg_asb;
++		power->is_2711 = true;
++	}
++
+ 	id = ASB_READ(ASB_AXI_BRDG_ID);
+ 	if (id != 0x62726467 /* "BRDG" */) {
+ 		dev_err(dev, "ASB register ID returned 0x%08x\n", id);
+--- a/include/linux/mfd/bcm2835-pm.h
++++ b/include/linux/mfd/bcm2835-pm.h
+@@ -9,6 +9,7 @@ struct bcm2835_pm {
+ 	struct device *dev;
+ 	void __iomem *base;
+ 	void __iomem *asb;
++	void __iomem *arg_asb;
+ };
+ 
+ #endif /* BCM2835_MFD_PM_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0136-clk-bcm2835-Add-support-for-setting-leaf-clock-rates.patch b/target/linux/bcm27xx/patches-5.10/950-0136-clk-bcm2835-Add-support-for-setting-leaf-clock-rates.patch
new file mode 100644
index 0000000000..4ad140bbbb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0136-clk-bcm2835-Add-support-for-setting-leaf-clock-rates.patch
@@ -0,0 +1,53 @@
+From a1dcaba80910c0196b6e51111ba3890372067e0e Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 2 May 2019 15:11:05 -0700
+Subject: [PATCH] clk: bcm2835: Add support for setting leaf clock
+ rates while running.
+
+As long as you wait for !BUSY, you can do glitch-free updates of clock
+rate while the clock is running.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 22 +++++++++++++---------
+ 1 file changed, 13 insertions(+), 9 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1115,15 +1115,19 @@ static int bcm2835_clock_set_rate(struct
+ 
+ 	spin_lock(&cprman->regs_lock);
+ 
+-	/*
+-	 * Setting up frac support
+-	 *
+-	 * In principle it is recommended to stop/start the clock first,
+-	 * but as we set CLK_SET_RATE_GATE during registration of the
+-	 * clock this requirement should be take care of by the
+-	 * clk-framework.
++	ctl = cprman_read(cprman, data->ctl_reg);
++
++	/* If the clock is running, we have to pause clock generation while
++	 * updating the control and div regs.  This is glitchless (no clock
++	 * signals generated faster than the rate) but each reg access is two
++	 * OSC cycles so the clock will slow down for a moment.
+ 	 */
+-	ctl = cprman_read(cprman, data->ctl_reg) & ~CM_FRAC;
++	if (ctl & CM_ENABLE) {
++		cprman_write(cprman, data->ctl_reg, ctl & ~CM_ENABLE);
++		bcm2835_clock_wait_busy(clock);
++	}
++
++	ctl &= ~CM_FRAC;
+ 	ctl |= (div & CM_DIV_FRAC_MASK) ? CM_FRAC : 0;
+ 	cprman_write(cprman, data->ctl_reg, ctl);
+ 
+@@ -1499,7 +1503,7 @@ static struct clk_hw *bcm2835_register_c
+ 		init.ops = &bcm2835_vpu_clock_clk_ops;
+ 	} else {
+ 		init.ops = &bcm2835_clock_clk_ops;
+-		init.flags |= CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE;
++		init.flags |= CLK_SET_PARENT_GATE;
+ 
+ 		/* If the clock wasn't actually enabled at boot, it's not
+ 		 * critical.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0137-clk-bcm2835-Allow-reparenting-leaf-clocks-while-they.patch b/target/linux/bcm27xx/patches-5.10/950-0137-clk-bcm2835-Allow-reparenting-leaf-clocks-while-they.patch
new file mode 100644
index 0000000000..093548898d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0137-clk-bcm2835-Allow-reparenting-leaf-clocks-while-they.patch
@@ -0,0 +1,71 @@
+From c6c55ad6f9269c703e8b7f9832640dbc0390238a Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 2 May 2019 15:24:04 -0700
+Subject: [PATCH] clk: bcm2835: Allow reparenting leaf clocks while
+ they're running.
+
+This falls under the same "we can reprogram glitch-free as long as we
+pause generation" rule as updating the div/frac fields.  This can be
+used for runtime reclocking of V3D to manage power leakage.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 19 ++++++++++++++++---
+ 1 file changed, 16 insertions(+), 3 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1104,8 +1104,10 @@ static int bcm2835_clock_on(struct clk_h
+ 	return 0;
+ }
+ 
+-static int bcm2835_clock_set_rate(struct clk_hw *hw,
+-				  unsigned long rate, unsigned long parent_rate)
++static int bcm2835_clock_set_rate_and_parent(struct clk_hw *hw,
++					     unsigned long rate,
++					     unsigned long parent_rate,
++					     u8 parent)
+ {
+ 	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
+ 	struct bcm2835_cprman *cprman = clock->cprman;
+@@ -1127,6 +1129,11 @@ static int bcm2835_clock_set_rate(struct
+ 		bcm2835_clock_wait_busy(clock);
+ 	}
+ 
++	if (parent != 0xff) {
++		ctl &= ~(CM_SRC_MASK << CM_SRC_SHIFT);
++		ctl |= parent << CM_SRC_SHIFT;
++	}
++
+ 	ctl &= ~CM_FRAC;
+ 	ctl |= (div & CM_DIV_FRAC_MASK) ? CM_FRAC : 0;
+ 	cprman_write(cprman, data->ctl_reg, ctl);
+@@ -1138,6 +1145,12 @@ static int bcm2835_clock_set_rate(struct
+ 	return 0;
+ }
+ 
++static int bcm2835_clock_set_rate(struct clk_hw *hw,
++				  unsigned long rate, unsigned long parent_rate)
++{
++	return bcm2835_clock_set_rate_and_parent(hw, rate, parent_rate, 0xff);
++}
++
+ static bool
+ bcm2835_clk_is_pllc(struct clk_hw *hw)
+ {
+@@ -1321,6 +1334,7 @@ static const struct clk_ops bcm2835_cloc
+ 	.unprepare = bcm2835_clock_off,
+ 	.recalc_rate = bcm2835_clock_get_rate,
+ 	.set_rate = bcm2835_clock_set_rate,
++	.set_rate_and_parent = bcm2835_clock_set_rate_and_parent,
+ 	.determine_rate = bcm2835_clock_determine_rate,
+ 	.set_parent = bcm2835_clock_set_parent,
+ 	.get_parent = bcm2835_clock_get_parent,
+@@ -1503,7 +1517,6 @@ static struct clk_hw *bcm2835_register_c
+ 		init.ops = &bcm2835_vpu_clock_clk_ops;
+ 	} else {
+ 		init.ops = &bcm2835_clock_clk_ops;
+-		init.flags |= CLK_SET_PARENT_GATE;
+ 
+ 		/* If the clock wasn't actually enabled at boot, it's not
+ 		 * critical.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0138-usb-add-plumbing-for-updating-interrupt-endpoint-int.patch b/target/linux/bcm27xx/patches-5.10/950-0138-usb-add-plumbing-for-updating-interrupt-endpoint-int.patch
new file mode 100644
index 0000000000..886899267e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0138-usb-add-plumbing-for-updating-interrupt-endpoint-int.patch
@@ -0,0 +1,104 @@
+From e1cd62d5163e73d18b4e3083a8a09dfb9c67fd4b Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 11 Jun 2019 10:55:00 +0100
+Subject: [PATCH] usb: add plumbing for updating interrupt endpoint
+ interval state
+
+xHCI caches device and endpoint data after the interface is configured,
+so an explicit command needs to be issued for any device driver wanting
+to alter the polling interval of an endpoint.
+
+Add usb_fixup_endpoint() to allow drivers to do this. The fixup must be
+called after calculating endpoint bandwidth requirements but before any
+URBs are submitted.
+
+If polling intervals are shortened, any bandwidth reservations are no
+longer valid but in practice polling intervals are only ever relaxed.
+
+Limit the scope to interrupt transfers for now.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/usb/core/hcd.c     | 10 ++++++++++
+ drivers/usb/core/message.c | 15 +++++++++++++++
+ include/linux/usb.h        |  2 ++
+ include/linux/usb/hcd.h    |  7 +++++++
+ 4 files changed, 34 insertions(+)
+
+--- a/drivers/usb/core/hcd.c
++++ b/drivers/usb/core/hcd.c
+@@ -1945,6 +1945,16 @@ reset:
+ 	return ret;
+ }
+ 
++void usb_hcd_fixup_endpoint(struct usb_device *udev,
++			    struct usb_host_endpoint *ep, int interval)
++{
++	struct usb_hcd *hcd;
++
++	hcd = bus_to_hcd(udev->bus);
++	if (hcd->driver->fixup_endpoint)
++		hcd->driver->fixup_endpoint(hcd, udev, ep, interval);
++}
++
+ /* Disables the endpoint: synchronizes with the hcd to make sure all
+  * endpoint state is gone from hardware.  usb_hcd_flush_endpoint() must
+  * have been called previously.  Use for set_configuration, set_interface,
+--- a/drivers/usb/core/message.c
++++ b/drivers/usb/core/message.c
+@@ -1259,6 +1259,21 @@ static void remove_intf_ep_devs(struct u
+ 	intf->ep_devs_created = 0;
+ }
+ 
++void usb_fixup_endpoint(struct usb_device *dev, int epaddr, int interval)
++{
++	unsigned int epnum = epaddr & USB_ENDPOINT_NUMBER_MASK;
++	struct usb_host_endpoint *ep;
++
++	if (usb_endpoint_out(epaddr))
++		ep = dev->ep_out[epnum];
++	else
++		ep = dev->ep_in[epnum];
++
++	if (ep && usb_endpoint_xfer_int(&ep->desc))
++		usb_hcd_fixup_endpoint(dev, ep, interval);
++}
++EXPORT_SYMBOL_GPL(usb_fixup_endpoint);
++
+ /**
+  * usb_disable_endpoint -- Disable an endpoint by address
+  * @dev: the device whose endpoint is being disabled
+--- a/include/linux/usb.h
++++ b/include/linux/usb.h
+@@ -1838,6 +1838,8 @@ extern int usb_clear_halt(struct usb_dev
+ extern int usb_reset_configuration(struct usb_device *dev);
+ extern int usb_set_interface(struct usb_device *dev, int ifnum, int alternate);
+ extern void usb_reset_endpoint(struct usb_device *dev, unsigned int epaddr);
++extern void usb_fixup_endpoint(struct usb_device *dev, int epaddr,
++			       int interval);
+ 
+ /* this request isn't really synchronous, but it belongs with the others */
+ extern int usb_driver_set_configuration(struct usb_device *udev, int config);
+--- a/include/linux/usb/hcd.h
++++ b/include/linux/usb/hcd.h
+@@ -382,6 +382,11 @@ struct hc_driver {
+ 		 * or bandwidth constraints.
+ 		 */
+ 	void	(*reset_bandwidth)(struct usb_hcd *, struct usb_device *);
++		/* Override the endpoint-derived interval
++		 * (if there is any cached hardware state).
++		 */
++	void	(*fixup_endpoint)(struct usb_hcd *hcd, struct usb_device *udev,
++				  struct usb_host_endpoint *ep, int interval);
+ 		/* Returns the hardware-chosen device address */
+ 	int	(*address_device)(struct usb_hcd *, struct usb_device *udev);
+ 		/* prepares the hardware to send commands to the device */
+@@ -443,6 +448,8 @@ extern void usb_hcd_unmap_urb_setup_for_
+ extern void usb_hcd_unmap_urb_for_dma(struct usb_hcd *, struct urb *);
+ extern void usb_hcd_flush_endpoint(struct usb_device *udev,
+ 		struct usb_host_endpoint *ep);
++extern void usb_hcd_fixup_endpoint(struct usb_device *udev,
++		struct usb_host_endpoint *ep, int interval);
+ extern void usb_hcd_disable_endpoint(struct usb_device *udev,
+ 		struct usb_host_endpoint *ep);
+ extern void usb_hcd_reset_endpoint(struct usb_device *udev,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0139-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch b/target/linux/bcm27xx/patches-5.10/950-0139-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch
new file mode 100644
index 0000000000..406bb04d46
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0139-xhci-implement-xhci_fixup_endpoint-for-interval-adju.patch
@@ -0,0 +1,129 @@
+From 574aabfd5a408bc10da01bb4abe222abc013ea45 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 11 Jun 2019 11:33:39 +0100
+Subject: [PATCH] xhci: implement xhci_fixup_endpoint for interval
+ adjustments
+
+Must be called in a non-atomic context, after the endpoint
+has been registered with the hardware via xhci_add_endpoint
+and before the first URB is submitted for the endpoint.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/usb/host/xhci.c | 98 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 98 insertions(+)
+
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -1467,6 +1467,103 @@ command_cleanup:
+ }
+ 
+ /*
++ * RPI: Fixup endpoint intervals when requested
++ * - Check interval versus the (cached) endpoint context
++ * - set the endpoint interval to the new value
++ * - force an endpoint configure command
++ * XXX: bandwidth is not recalculated. We should probably do that.
++ */
++static void xhci_fixup_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
++				struct usb_host_endpoint *ep, int interval)
++{
++	struct xhci_hcd *xhci;
++	struct xhci_ep_ctx *ep_ctx_out, *ep_ctx_in;
++	struct xhci_command *command;
++	struct xhci_input_control_ctx *ctrl_ctx;
++	struct xhci_virt_device *vdev;
++	int xhci_interval;
++	int ret;
++	int ep_index;
++	unsigned long flags;
++	u32 ep_info_tmp;
++
++	xhci = hcd_to_xhci(hcd);
++	ep_index = xhci_get_endpoint_index(&ep->desc);
++
++	/* FS/LS interval translations */
++	if ((udev->speed == USB_SPEED_FULL ||
++	     udev->speed == USB_SPEED_LOW))
++		interval *= 8;
++
++	mutex_lock(&xhci->mutex);
++
++	spin_lock_irqsave(&xhci->lock, flags);
++
++	vdev = xhci->devs[udev->slot_id];
++	/* Get context-derived endpoint interval */
++	ep_ctx_out = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index);
++	ep_ctx_in = xhci_get_ep_ctx(xhci, vdev->in_ctx, ep_index);
++	xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx_out->ep_info));
++
++	if (interval == xhci_interval) {
++		spin_unlock_irqrestore(&xhci->lock, flags);
++		mutex_unlock(&xhci->mutex);
++		return;
++	}
++
++	xhci_dbg(xhci, "Fixup interval=%d xhci_interval=%d\n",
++		 interval, xhci_interval);
++	command = xhci_alloc_command_with_ctx(xhci, true, GFP_ATOMIC);
++	if (!command) {
++		/* Failure here is benign, poll at the original rate */
++		spin_unlock_irqrestore(&xhci->lock, flags);
++		mutex_unlock(&xhci->mutex);
++		return;
++	}
++
++	/* xHCI uses exponents for intervals... */
++	xhci_interval = fls(interval) - 1;
++	xhci_interval = clamp_val(xhci_interval, 3, 10);
++	ep_info_tmp = le32_to_cpu(ep_ctx_out->ep_info);
++	ep_info_tmp &= ~EP_INTERVAL(255);
++	ep_info_tmp |= EP_INTERVAL(xhci_interval);
++
++	/* Keep the endpoint context up-to-date while issuing the command. */
++	xhci_endpoint_copy(xhci, vdev->in_ctx,
++			   vdev->out_ctx, ep_index);
++	ep_ctx_in->ep_info = cpu_to_le32(ep_info_tmp);
++
++	/*
++	 * We need to drop the lock, so take an explicit copy
++	 * of the ep context.
++	 */
++	xhci_endpoint_copy(xhci, command->in_ctx, vdev->in_ctx, ep_index);
++
++	ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx);
++	if (!ctrl_ctx) {
++		xhci_warn(xhci,
++			  "%s: Could not get input context, bad type.\n",
++			  __func__);
++		spin_unlock_irqrestore(&xhci->lock, flags);
++		xhci_free_command(xhci, command);
++		mutex_unlock(&xhci->mutex);
++		return;
++	}
++	ctrl_ctx->add_flags = xhci_get_endpoint_flag_from_index(ep_index);
++	ctrl_ctx->drop_flags = 0;
++
++	spin_unlock_irqrestore(&xhci->lock, flags);
++
++	ret = xhci_configure_endpoint(xhci, udev, command,
++				      false, false);
++	if (ret)
++		xhci_warn(xhci, "%s: Configure endpoint failed: %d\n",
++			  __func__, ret);
++	xhci_free_command(xhci, command);
++	mutex_unlock(&xhci->mutex);
++}
++
++/*
+  * non-error returns are a promise to giveback() the urb later
+  * we drop ownership so next owner (or urb unlink) can get it
+  */
+@@ -5361,6 +5458,7 @@ static const struct hc_driver xhci_hc_dr
+ 	.endpoint_reset =	xhci_endpoint_reset,
+ 	.check_bandwidth =	xhci_check_bandwidth,
+ 	.reset_bandwidth =	xhci_reset_bandwidth,
++	.fixup_endpoint =	xhci_fixup_endpoint,
+ 	.address_device =	xhci_address_device,
+ 	.enable_device =	xhci_enable_device,
+ 	.update_hub_device =	xhci_update_hub_device,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0140-usbhid-call-usb_fixup_endpoint-after-mangling-interv.patch b/target/linux/bcm27xx/patches-5.10/950-0140-usbhid-call-usb_fixup_endpoint-after-mangling-interv.patch
new file mode 100644
index 0000000000..332139dadb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0140-usbhid-call-usb_fixup_endpoint-after-mangling-interv.patch
@@ -0,0 +1,23 @@
+From 39deae2e4d179df6532687902948a84c39bb2f34 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 11 Jun 2019 11:42:03 +0100
+Subject: [PATCH] usbhid: call usb_fixup_endpoint after mangling
+ intervals
+
+Lets the mousepoll override mechanism work with xhci.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/hid/usbhid/hid-core.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/hid/usbhid/hid-core.c
++++ b/drivers/hid/usbhid/hid-core.c
+@@ -1128,6 +1128,7 @@ static int usbhid_start(struct hid_devic
+ 				interval = hid_kbpoll_interval;
+ 			break;
+ 		}
++		usb_fixup_endpoint(dev, endpoint->bEndpointAddress, interval);
+ 
+ 		ret = -ENOMEM;
+ 		if (usb_endpoint_dir_in(endpoint)) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0141-arm-bcm2835-Add-bcm2838-compatible-string.patch b/target/linux/bcm27xx/patches-5.10/950-0141-arm-bcm2835-Add-bcm2838-compatible-string.patch
new file mode 100644
index 0000000000..c83d117997
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0141-arm-bcm2835-Add-bcm2838-compatible-string.patch
@@ -0,0 +1,20 @@
+From a085d0f6d2eddd876becfbc6b658fd1d6db5cd0b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 11 Jun 2019 17:38:28 +0100
+Subject: [PATCH] arm: bcm2835: Add bcm2838 compatible string.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -109,6 +109,7 @@ static const char * const bcm2835_compat
+ #ifdef CONFIG_ARCH_MULTI_V7
+ 	"brcm,bcm2836",
+ 	"brcm,bcm2837",
++	"brcm,bcm2838",
+ #endif
+ 	NULL
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0142-drm-v3d-Add-support-for-2711.patch b/target/linux/bcm27xx/patches-5.10/950-0142-drm-v3d-Add-support-for-2711.patch
new file mode 100644
index 0000000000..e11eee95e8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0142-drm-v3d-Add-support-for-2711.patch
@@ -0,0 +1,20 @@
+From c124b2797bc42c9363345581e233a53d811d72af Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 4 Oct 2018 17:22:43 -0700
+Subject: [PATCH] drm/v3d: Add support for 2711.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/v3d/v3d_drv.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -227,6 +227,7 @@ static struct drm_driver v3d_drm_driver
+ static const struct of_device_id v3d_of_match[] = {
+ 	{ .compatible = "brcm,7268-v3d" },
+ 	{ .compatible = "brcm,7278-v3d" },
++	{ .compatible = "brcm,2711-v3d" },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, v3d_of_match);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0143-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch b/target/linux/bcm27xx/patches-5.10/950-0143-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch
new file mode 100644
index 0000000000..1276cf5b52
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0143-drm-v3d-Skip-MMU-flush-if-the-device-is-currently-of.patch
@@ -0,0 +1,52 @@
+From ca945515e1a3be554e654823d6a27403d43318c2 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 14 Jan 2019 12:35:43 -0800
+Subject: [PATCH] drm/v3d: Skip MMU flush if the device is currently
+ off.
+
+If it's off, we know it will be reset on poweron, so the MMU won't
+have any TLB cached from before this point.  Avoids failed waits for
+MMU flush to reply.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+(cherry picked from commit 3ee4e2e0a9e9587eacbb69b067bbc72ab2cdc47b)
+---
+ drivers/gpu/drm/v3d/v3d_mmu.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_mmu.c
++++ b/drivers/gpu/drm/v3d/v3d_mmu.c
+@@ -18,6 +18,8 @@
+  * each client.  This is not yet implemented.
+  */
+ 
++#include <linux/pm_runtime.h>
++
+ #include "v3d_drv.h"
+ #include "v3d_regs.h"
+ 
+@@ -34,6 +36,14 @@ static int v3d_mmu_flush_all(struct v3d_
+ {
+ 	int ret;
+ 
++	/* Keep power on the device on until we're done with this
++	 * call, but skip the flush if the device is off and will be
++	 * reset when powered back on.
++	 */
++	ret = pm_runtime_get_if_in_use(v3d->dev);
++	if (ret == 0)
++		return 0;
++
+ 	/* Make sure that another flush isn't already running when we
+ 	 * start this one.
+ 	 */
+@@ -61,6 +71,9 @@ static int v3d_mmu_flush_all(struct v3d_
+ 	if (ret)
+ 		dev_err(v3d->drm.dev, "MMUC flush wait idle failed\n");
+ 
++	pm_runtime_mark_last_busy(v3d->dev);
++	pm_runtime_put_autosuspend(v3d->dev);
++
+ 	return ret;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0144-drm-v3d-Hook-up-the-runtime-PM-ops.patch b/target/linux/bcm27xx/patches-5.10/950-0144-drm-v3d-Hook-up-the-runtime-PM-ops.patch
new file mode 100644
index 0000000000..9fcffec0b0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0144-drm-v3d-Hook-up-the-runtime-PM-ops.patch
@@ -0,0 +1,34 @@
+From e7398ddc64a8540bb016d653ff0bddfc0660f606 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 14 Jan 2019 14:47:57 -0800
+Subject: [PATCH] drm/v3d: Hook up the runtime PM ops.
+
+In translating the runtime PM code from vc4, I missed the ".pm"
+assignment to actually connect them up.  Fixes missing MMU setup if
+runtime PM resets V3D.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+(cherry picked from commit ca197699af29baa8236c74c53d4904ca8957ee06)
+---
+ drivers/gpu/drm/v3d/v3d_drv.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -70,7 +70,7 @@ static int v3d_runtime_resume(struct dev
+ }
+ #endif
+ 
+-static const struct dev_pm_ops v3d_v3d_pm_ops = {
++static const struct dev_pm_ops v3d_pm_ops = {
+ 	SET_RUNTIME_PM_OPS(v3d_runtime_suspend, v3d_runtime_resume, NULL)
+ };
+ 
+@@ -356,6 +356,7 @@ static struct platform_driver v3d_platfo
+ 	.driver		= {
+ 		.name	= "v3d",
+ 		.of_match_table = v3d_of_match,
++		.pm = &v3d_pm_ops,
+ 	},
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0145-xhci-add-quirk-for-host-controllers-that-don-t-updat.patch b/target/linux/bcm27xx/patches-5.10/950-0145-xhci-add-quirk-for-host-controllers-that-don-t-updat.patch
new file mode 100644
index 0000000000..59a1cf11bd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0145-xhci-add-quirk-for-host-controllers-that-don-t-updat.patch
@@ -0,0 +1,90 @@
+From e47ad4978bde4920c1e1eb381531a6904025c852 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Thu, 11 Jul 2019 17:55:43 +0100
+Subject: [PATCH] xhci: add quirk for host controllers that don't
+ update endpoint DCS
+
+Seen on a VLI VL805 PCIe to USB controller. For non-stream endpoints
+at least, if the xHC halts on a particular TRB due to an error then
+the DCS field in the Out Endpoint Context maintained by the hardware
+is not updated with the current cycle state.
+
+Using the quirk XHCI_EP_CTX_BROKEN_DCS and instead fetch the DCS bit
+from the TRB that the xHC stopped on.
+
+See: https://github.com/raspberrypi/linux/issues/3060
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/usb/host/xhci-pci.c  |  4 +++-
+ drivers/usb/host/xhci-ring.c | 26 +++++++++++++++++++++++++-
+ drivers/usb/host/xhci.h      |  1 +
+ 3 files changed, 29 insertions(+), 2 deletions(-)
+
+--- a/drivers/usb/host/xhci-pci.c
++++ b/drivers/usb/host/xhci-pci.c
+@@ -274,8 +274,10 @@ static void xhci_pci_quirks(struct devic
+ 			pdev->device == 0x3432)
+ 		xhci->quirks |= XHCI_BROKEN_STREAMS;
+ 
+-	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
++	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
+ 		xhci->quirks |= XHCI_LPM_SUPPORT;
++		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
++	}
+ 
+ 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+ 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -556,7 +556,10 @@ void xhci_find_new_dequeue_state(struct
+ 	struct xhci_virt_ep *ep = &dev->eps[ep_index];
+ 	struct xhci_ring *ep_ring;
+ 	struct xhci_segment *new_seg;
++	struct xhci_segment *halted_seg = NULL;
+ 	union xhci_trb *new_deq;
++	union xhci_trb *halted_trb;
++	int index = 0;
+ 	dma_addr_t addr;
+ 	u64 hw_dequeue;
+ 	bool cycle_found = false;
+@@ -594,7 +597,28 @@ void xhci_find_new_dequeue_state(struct
+ 	hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id);
+ 	new_seg = ep_ring->deq_seg;
+ 	new_deq = ep_ring->dequeue;
+-	state->new_cycle_state = hw_dequeue & 0x1;
++
++	/*
++	 * Quirk: xHC write-back of the DCS field in the hardware dequeue
++	 * pointer is wrong - use the cycle state of the TRB pointed to by
++	 * the dequeue pointer.
++	 */
++	if (xhci->quirks & XHCI_EP_CTX_BROKEN_DCS &&
++	    !(ep->ep_state & EP_HAS_STREAMS))
++		halted_seg = trb_in_td(xhci, cur_td->start_seg,
++				       cur_td->first_trb, cur_td->last_trb,
++				       hw_dequeue & ~0xf, false);
++	if (halted_seg) {
++		index = ((dma_addr_t)(hw_dequeue & ~0xf) - halted_seg->dma) /
++			 sizeof(*halted_trb);
++		halted_trb = &halted_seg->trbs[index];
++		state->new_cycle_state = halted_trb->generic.field[3] & 0x1;
++		xhci_dbg(xhci, "Endpoint DCS = %d TRB index = %d cycle = %d\n",
++			 (u8)(hw_dequeue & 0x1), index,
++			 state->new_cycle_state);
++	} else {
++		state->new_cycle_state = hw_dequeue & 0x1;
++	}
+ 	state->stream_id = stream_id;
+ 
+ 	/*
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -1881,6 +1881,7 @@ struct xhci_hcd {
+ #define XHCI_DISABLE_SPARSE	BIT_ULL(38)
+ #define XHCI_SG_TRB_CACHE_SIZE_QUIRK	BIT_ULL(39)
+ #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
++#define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(41)
+ 
+ 	unsigned int		num_active_eps;
+ 	unsigned int		limit_active_eps;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0146-i2c-bcm2835-Set-clock-stretch-timeout-to-35ms.patch b/target/linux/bcm27xx/patches-5.10/950-0146-i2c-bcm2835-Set-clock-stretch-timeout-to-35ms.patch
new file mode 100644
index 0000000000..9cb93621bb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0146-i2c-bcm2835-Set-clock-stretch-timeout-to-35ms.patch
@@ -0,0 +1,47 @@
+From 930c69b932959ad237347ca02b31bf1e9ebf227a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 12 Jul 2019 15:38:35 +0100
+Subject: [PATCH] i2c: bcm2835: Set clock-stretch timeout to 35ms
+
+The BCM2835 I2C blocks have a register to set the clock-stretch
+timeout - how long the device is allowed to hold SCL low - in bus
+cycles. The current driver doesn't write to the register, therefore
+the default value of 64 cycles is being used for all devices.
+
+Set the timeout to the value recommended for SMBus - 35ms.
+
+See: https://github.com/raspberrypi/linux/issues/3064
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/i2c/busses/i2c-bcm2835.c | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+--- a/drivers/i2c/busses/i2c-bcm2835.c
++++ b/drivers/i2c/busses/i2c-bcm2835.c
+@@ -188,6 +188,7 @@ static int clk_bcm2835_i2c_set_rate(stru
+ {
+ 	struct clk_bcm2835_i2c *div = to_clk_bcm2835_i2c(hw);
+ 	u32 redl, fedl;
++	u32 clk_tout;
+ 	u32 divider = clk_bcm2835_i2c_calc_divider(rate, parent_rate);
+ 
+ 	if (divider == -EINVAL)
+@@ -211,6 +212,17 @@ static int clk_bcm2835_i2c_set_rate(stru
+ 	bcm2835_i2c_writel(div->i2c_dev, BCM2835_I2C_DEL,
+ 			   (fedl << BCM2835_I2C_FEDL_SHIFT) |
+ 			   (redl << BCM2835_I2C_REDL_SHIFT));
++
++	/*
++	 * Set the clock stretch timeout to the SMBUs-recommended 35ms.
++	 */
++	if (rate > 0xffff*1000/35)
++	    clk_tout = 0xffff;
++	else
++	    clk_tout = 35*rate/1000;
++
++	bcm2835_i2c_writel(div->i2c_dev, BCM2835_I2C_CLKT, clk_tout);
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0147-clk-bcm2835-Avoid-null-pointer-exception.patch b/target/linux/bcm27xx/patches-5.10/950-0147-clk-bcm2835-Avoid-null-pointer-exception.patch
new file mode 100644
index 0000000000..29613d1a40
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0147-clk-bcm2835-Avoid-null-pointer-exception.patch
@@ -0,0 +1,29 @@
+From 17e36f484c42177981279d791cbc55a43c5d5a12 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 6 Aug 2019 15:23:14 +0100
+Subject: [PATCH] clk-bcm2835: Avoid null pointer exception
+
+clk_desc_array[BCM2835_PLLB] doesn't exist so we dereference null when iterating
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -2310,9 +2310,11 @@ static bool bcm2835_clk_is_claimed(const
+ 	int i;
+ 
+ 	for (i = 0; i < ARRAY_SIZE(clk_desc_array); i++) {
+-		const char *clk_name = *(const char **)(clk_desc_array[i].data);
+-		if (!strcmp(name, clk_name))
+-		    return bcm2835_clk_claimed[i];
++		if (clk_desc_array[i].data) {
++			const char *clk_name = *(const char **)(clk_desc_array[i].data);
++			if (!strcmp(name, clk_name))
++				return bcm2835_clk_claimed[i];
++		}
+ 	}
+ 
+ 	return false;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0148-drm-v3d-HACK-gut-runtime-pm-for-now.patch b/target/linux/bcm27xx/patches-5.10/950-0148-drm-v3d-HACK-gut-runtime-pm-for-now.patch
new file mode 100644
index 0000000000..d986de4dd3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0148-drm-v3d-HACK-gut-runtime-pm-for-now.patch
@@ -0,0 +1,109 @@
+From 1480a99bfef66b0c0f07c90436a873937b656ce7 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Mon, 14 Jan 2019 15:13:17 -0800
+Subject: [PATCH] drm/v3d: HACK: gut runtime pm for now.
+
+Something is still unstable -- on starting a new glxgears from an idle
+X11, I get an MMU violation in high addresses.  The CTS also failed
+quite quickly.  With this, CTS progresses for an hour before OOMing
+(allocating some big buffers when my board only has 600MB available to
+Linux)
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/v3d/v3d_debugfs.c | 16 +---------------
+ drivers/gpu/drm/v3d/v3d_drv.c     |  9 ---------
+ 2 files changed, 1 insertion(+), 24 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_debugfs.c
++++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
+@@ -4,7 +4,6 @@
+ #include <linux/circ_buf.h>
+ #include <linux/ctype.h>
+ #include <linux/debugfs.h>
+-#include <linux/pm_runtime.h>
+ #include <linux/seq_file.h>
+ 
+ #include <drm/drm_debugfs.h>
+@@ -130,11 +129,8 @@ static int v3d_v3d_debugfs_ident(struct
+ 	struct drm_device *dev = node->minor->dev;
+ 	struct v3d_dev *v3d = to_v3d_dev(dev);
+ 	u32 ident0, ident1, ident2, ident3, cores;
+-	int ret, core;
++	int core;
+ 
+-	ret = pm_runtime_get_sync(v3d->drm.dev);
+-	if (ret < 0)
+-		return ret;
+ 
+ 	ident0 = V3D_READ(V3D_HUB_IDENT0);
+ 	ident1 = V3D_READ(V3D_HUB_IDENT1);
+@@ -187,9 +183,6 @@ static int v3d_v3d_debugfs_ident(struct
+ 			   (misccfg & V3D_MISCCFG_OVRTMUOUT) != 0);
+ 	}
+ 
+-	pm_runtime_mark_last_busy(v3d->drm.dev);
+-	pm_runtime_put_autosuspend(v3d->drm.dev);
+-
+ 	return 0;
+ }
+ 
+@@ -217,11 +210,6 @@ static int v3d_measure_clock(struct seq_
+ 	uint32_t cycles;
+ 	int core = 0;
+ 	int measure_ms = 1000;
+-	int ret;
+-
+-	ret = pm_runtime_get_sync(v3d->drm.dev);
+-	if (ret < 0)
+-		return ret;
+ 
+ 	if (v3d->ver >= 40) {
+ 		V3D_CORE_WRITE(core, V3D_V4_PCTR_0_SRC_0_3,
+@@ -245,8 +233,6 @@ static int v3d_measure_clock(struct seq_
+ 		   cycles / (measure_ms * 1000),
+ 		   (cycles / (measure_ms * 100)) % 10);
+ 
+-	pm_runtime_mark_last_busy(v3d->drm.dev);
+-	pm_runtime_put_autosuspend(v3d->drm.dev);
+ 
+ 	return 0;
+ }
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -79,7 +79,6 @@ static int v3d_get_param_ioctl(struct dr
+ {
+ 	struct v3d_dev *v3d = to_v3d_dev(dev);
+ 	struct drm_v3d_get_param *args = data;
+-	int ret;
+ 	static const u32 reg_map[] = {
+ 		[DRM_V3D_PARAM_V3D_UIFCFG] = V3D_HUB_UIFCFG,
+ 		[DRM_V3D_PARAM_V3D_HUB_IDENT1] = V3D_HUB_IDENT1,
+@@ -105,17 +104,12 @@ static int v3d_get_param_ioctl(struct dr
+ 		if (args->value != 0)
+ 			return -EINVAL;
+ 
+-		ret = pm_runtime_get_sync(v3d->drm.dev);
+-		if (ret < 0)
+-			return ret;
+ 		if (args->param >= DRM_V3D_PARAM_V3D_CORE0_IDENT0 &&
+ 		    args->param <= DRM_V3D_PARAM_V3D_CORE0_IDENT2) {
+ 			args->value = V3D_CORE_READ(0, offset);
+ 		} else {
+ 			args->value = V3D_READ(offset);
+ 		}
+-		pm_runtime_mark_last_busy(v3d->drm.dev);
+-		pm_runtime_put_autosuspend(v3d->drm.dev);
+ 		return 0;
+ 	}
+ 
+@@ -308,9 +302,6 @@ static int v3d_platform_drm_probe(struct
+ 		return -ENOMEM;
+ 	}
+ 
+-	pm_runtime_use_autosuspend(dev);
+-	pm_runtime_set_autosuspend_delay(dev, 50);
+-	pm_runtime_enable(dev);
+ 
+ 	ret = v3d_gem_init(drm);
+ 	if (ret)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0149-drm-v3d-Clock-V3D-down-when-not-in-use.patch b/target/linux/bcm27xx/patches-5.10/950-0149-drm-v3d-Clock-V3D-down-when-not-in-use.patch
new file mode 100644
index 0000000000..652207e5e1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0149-drm-v3d-Clock-V3D-down-when-not-in-use.patch
@@ -0,0 +1,161 @@
+From 6a9c9cba52a98a3ca380d43c5a12ef4fc190276d Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 2 May 2019 13:22:53 -0700
+Subject: [PATCH] drm/v3d: Clock V3D down when not in use.
+
+My various attempts at re-enabling runtime PM have failed, so just
+crank the clock down when V3D is idle to reduce power consumption.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/v3d/v3d_drv.c | 18 ++++++++++++
+ drivers/gpu/drm/v3d/v3d_drv.h |  6 ++++
+ drivers/gpu/drm/v3d/v3d_gem.c | 53 +++++++++++++++++++++++++++++++----
+ 3 files changed, 72 insertions(+), 5 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -289,6 +289,21 @@ static int v3d_platform_drm_probe(struct
+ 		}
+ 	}
+ 
++	v3d->clk = devm_clk_get(dev, NULL);
++	if (IS_ERR(v3d->clk)) {
++		if (ret != -EPROBE_DEFER)
++			dev_err(dev, "Failed to get clock\n");
++		goto dev_free;
++	}
++	v3d->clk_up_rate = clk_get_rate(v3d->clk);
++	/* For downclocking, drop it to the minimum frequency we can get from
++	 * the CPRMAN clock generator dividing off our parent.  The divider is
++	 * 4 bits, but ask for just higher than that so that rounding doesn't
++	 * make cprman reject our rate.
++	 */
++	v3d->clk_down_rate =
++		(clk_get_rate(clk_get_parent(v3d->clk)) / (1 << 4)) + 10000;
++
+ 	if (v3d->ver < 41) {
+ 		ret = map_regs(v3d, &v3d->gca_regs, "gca");
+ 		if (ret)
+@@ -315,6 +330,9 @@ static int v3d_platform_drm_probe(struct
+ 	if (ret)
+ 		goto irq_disable;
+ 
++	ret = clk_set_rate(v3d->clk, v3d->clk_down_rate);
++	WARN_ON_ONCE(ret != 0);
++
+ 	return 0;
+ 
+ irq_disable:
+--- a/drivers/gpu/drm/v3d/v3d_drv.h
++++ b/drivers/gpu/drm/v3d/v3d_drv.h
+@@ -51,6 +51,12 @@ struct v3d_dev {
+ 	void __iomem *bridge_regs;
+ 	void __iomem *gca_regs;
+ 	struct clk *clk;
++	struct delayed_work clk_down_work;
++	unsigned long clk_up_rate, clk_down_rate;
++	struct mutex clk_lock;
++	u32 clk_refcount;
++	bool clk_up;
++
+ 	struct reset_control *reset;
+ 
+ 	/* Virtual and DMA addresses of the single shared page table. */
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -4,6 +4,7 @@
+ #include <linux/device.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/io.h>
++#include <linux/clk.h>
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
+ #include <linux/pm_runtime.h>
+@@ -19,6 +20,47 @@
+ #include "v3d_trace.h"
+ 
+ static void
++v3d_clock_down_work(struct work_struct *work)
++{
++	struct v3d_dev *v3d =
++		container_of(work, struct v3d_dev, clk_down_work.work);
++	int ret;
++
++	ret = clk_set_rate(v3d->clk, v3d->clk_down_rate);
++	v3d->clk_up = false;
++	WARN_ON_ONCE(ret != 0);
++}
++
++static void
++v3d_clock_up_get(struct v3d_dev *v3d)
++{
++	mutex_lock(&v3d->clk_lock);
++	if (v3d->clk_refcount++ == 0) {
++		cancel_delayed_work_sync(&v3d->clk_down_work);
++		if (!v3d->clk_up)  {
++			int ret;
++
++			ret = clk_set_rate(v3d->clk, v3d->clk_up_rate);
++			WARN_ON_ONCE(ret != 0);
++			v3d->clk_up = true;
++		}
++	}
++	mutex_unlock(&v3d->clk_lock);
++}
++
++static void
++v3d_clock_up_put(struct v3d_dev *v3d)
++{
++	mutex_lock(&v3d->clk_lock);
++	if (--v3d->clk_refcount == 0) {
++		schedule_delayed_work(&v3d->clk_down_work,
++				      msecs_to_jiffies(100));
++	}
++	mutex_unlock(&v3d->clk_lock);
++}
++
++
++static void
+ v3d_init_core(struct v3d_dev *v3d, int core)
+ {
+ 	/* Set OVRTMUOUT, which means that the texture sampler uniform
+@@ -354,6 +396,7 @@ v3d_job_free(struct kref *ref)
+ 	struct v3d_job *job = container_of(ref, struct v3d_job, refcount);
+ 	unsigned long index;
+ 	struct dma_fence *fence;
++	struct v3d_dev *v3d = job->v3d;
+ 	int i;
+ 
+ 	for (i = 0; i < job->bo_count; i++) {
+@@ -367,11 +410,7 @@ v3d_job_free(struct kref *ref)
+ 	}
+ 	xa_destroy(&job->deps);
+ 
+-	dma_fence_put(job->irq_fence);
+-	dma_fence_put(job->done_fence);
+-
+-	pm_runtime_mark_last_busy(job->v3d->drm.dev);
+-	pm_runtime_put_autosuspend(job->v3d->drm.dev);
++	v3d_clock_up_put(v3d);
+ 
+ 	kfree(job);
+ }
+@@ -453,6 +492,7 @@ v3d_job_init(struct v3d_dev *v3d, struct
+ 	if (ret)
+ 		goto fail;
+ 
++	v3d_clock_up_get(v3d);
+ 	kref_init(&job->refcount);
+ 
+ 	return 0;
+@@ -879,6 +919,9 @@ v3d_gem_init(struct drm_device *dev)
+ 	mutex_init(&v3d->sched_lock);
+ 	mutex_init(&v3d->cache_clean_lock);
+ 
++	mutex_init(&v3d->clk_lock);
++	INIT_DELAYED_WORK(&v3d->clk_down_work, v3d_clock_down_work);
++
+ 	/* Note: We don't allocate address 0.  Various bits of HW
+ 	 * treat 0 as special, such as the occlusion query counters
+ 	 * where 0 means "disabled".
diff --git a/target/linux/bcm27xx/patches-5.10/950-0150-drivers-char-add-chardev-for-mmap-ing-the-RPiVid-con.patch b/target/linux/bcm27xx/patches-5.10/950-0150-drivers-char-add-chardev-for-mmap-ing-the-RPiVid-con.patch
new file mode 100644
index 0000000000..0b9a1356d6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0150-drivers-char-add-chardev-for-mmap-ing-the-RPiVid-con.patch
@@ -0,0 +1,441 @@
+From e264c7d05860aa12664fa3db8bcf8c4cbc20a62e Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Thu, 9 May 2019 14:30:37 +0100
+Subject: [PATCH] drivers: char: add chardev for mmap'ing the RPiVid
+ control registers
+
+Based on the gpiomem driver, allow mapping of the decoder register
+spaces such that userspace can access control/status registers.
+This driver is intended for use with a custom ffmpeg backend accelerator
+prior to a v4l2 driver being written.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+
+driver: char: rpivid: Destroy the legacy device on remove
+
+The legacy name support created a new device that was never destroyed.
+If the driver was unloaded and reloaded, it failed due to the
+device already existing.
+
+Fixes: "75f1d14 driver: char: rpivid - also support legacy name"
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+driver: char: rpivid: Clean up error handling use of ERR_PTR/IS_ERR
+
+The driver used an unnecessary intermediate void* variable so it
+only called ERR_PTR once to convert to the error value.
+
+Switch to converting as the error arises to remove these intermediate
+variables.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+driver: char: rpivid: Add error handling to the legacy device load
+
+The return value from device_create for the legacy device was never
+checked or handled. Add the required error handling.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+driver: char: rpivid: Fix coding style whitespace issues.
+
+Makes checkpatch happier.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+driver: char: rpimem: Add SPDX licence header.
+
+Stops checkpatch complaining.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+driver: char: rpivid: Fix access to freed memory
+
+The error path during probe frees the private memory block, and
+then promptly dereferences it to log an error message.
+
+Use the base device instead of the pointer to it in the private
+structure.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/char/broadcom/Kconfig      |   8 +
+ drivers/char/broadcom/Makefile     |   1 +
+ drivers/char/broadcom/rpivid-mem.c | 292 +++++++++++++++++++++++++++++
+ drivers/mfd/bcm2835-pm.c           |  12 +-
+ drivers/soc/bcm/bcm2835-power.c    |   6 +-
+ include/linux/mfd/bcm2835-pm.h     |   2 +-
+ 6 files changed, 311 insertions(+), 10 deletions(-)
+ create mode 100644 drivers/char/broadcom/rpivid-mem.c
+
+--- a/drivers/char/broadcom/Kconfig
++++ b/drivers/char/broadcom/Kconfig
+@@ -39,3 +39,11 @@ config BCM2835_SMI_DEV
+ 		This driver provides a character device interface (ioctl + read/write) to
+ 		Broadcom's Secondary Memory interface. The low-level functionality is provided
+ 		by the SMI driver itself.
++
++config RPIVID_MEM
++	tristate "Character device driver for the Raspberry Pi RPIVid video decoder hardware"
++	default n
++	help
++		This driver provides a character device interface for memory-map operations
++		so userspace tools can access the control and status registers of the
++		Raspberry Pi RPiVid video decoder hardware.
+--- a/drivers/char/broadcom/Makefile
++++ b/drivers/char/broadcom/Makefile
+@@ -2,3 +2,4 @@ obj-$(CONFIG_BCM2708_VCMEM)	+= vc_mem.o
+ obj-$(CONFIG_BCM_VCIO)		+= vcio.o
+ obj-$(CONFIG_BCM2835_DEVGPIOMEM)+= bcm2835-gpiomem.o
+ obj-$(CONFIG_BCM2835_SMI_DEV)	+= bcm2835_smi_dev.o
++obj-$(CONFIG_RPIVID_MEM)	+= rpivid-mem.o
+--- /dev/null
++++ b/drivers/char/broadcom/rpivid-mem.c
+@@ -0,0 +1,292 @@
++// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
++/**
++ * rpivid-mem.c - character device access to the RPiVid decoder registers
++ *
++ * Based on bcm2835-gpiomem.c. Provides IO memory access to the decoder
++ * register blocks such that ffmpeg plugins can access the hardware.
++ *
++ * Jonathan Bell <jonathan@raspberrypi.org>
++ * Copyright (c) 2019, Raspberry Pi (Trading) Ltd.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions, and the following disclaimer,
++ *    without modification.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The names of the above-listed copyright holders may not be used
++ *    to endorse or promote products derived from this software without
++ *    specific prior written permission.
++ *
++ * ALTERNATIVELY, this software may be distributed under the terms of the
++ * GNU General Public License ("GPL") version 2, as published by the Free
++ * Software Foundation.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
++ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
++ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
++ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
++ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
++ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
++ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
++ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/of_device.h>
++#include <linux/platform_device.h>
++#include <linux/mm.h>
++#include <linux/slab.h>
++#include <linux/cdev.h>
++#include <linux/pagemap.h>
++#include <linux/io.h>
++
++#define DRIVER_NAME "rpivid-mem"
++#define DEVICE_MINOR 0
++
++struct rpivid_mem_priv {
++	dev_t devid;
++	struct class *class;
++	struct cdev rpivid_mem_cdev;
++	unsigned long regs_phys;
++	unsigned long mem_window_len;
++	struct device *dev;
++	const char *name;
++};
++
++static int rpivid_mem_open(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++	struct rpivid_mem_priv *priv;
++
++	if (dev != DEVICE_MINOR && dev != DEVICE_MINOR + 1)
++		ret = -ENXIO;
++
++	priv = container_of(inode->i_cdev, struct rpivid_mem_priv,
++				rpivid_mem_cdev);
++	if (!priv)
++		return -EINVAL;
++	file->private_data = priv;
++	return ret;
++}
++
++static int rpivid_mem_release(struct inode *inode, struct file *file)
++{
++	int dev = iminor(inode);
++	int ret = 0;
++
++	if (dev != DEVICE_MINOR && dev != DEVICE_MINOR + 1)
++		ret = -ENXIO;
++
++	return ret;
++}
++
++static const struct vm_operations_struct rpivid_mem_vm_ops = {
++#ifdef CONFIG_HAVE_IOREMAP_PROT
++	.access = generic_access_phys
++#endif
++};
++
++static int rpivid_mem_mmap(struct file *file, struct vm_area_struct *vma)
++{
++	struct rpivid_mem_priv *priv;
++	unsigned long pages;
++
++	priv = file->private_data;
++	pages = priv->regs_phys >> PAGE_SHIFT;
++	/*
++	 * The address decode is far larger than the actual number of registers.
++	 * Just map the whole lot in.
++	 */
++	vma->vm_page_prot = phys_mem_access_prot(file, pages,
++						 priv->mem_window_len,
++						 vma->vm_page_prot);
++	vma->vm_ops = &rpivid_mem_vm_ops;
++	if (remap_pfn_range(vma, vma->vm_start,
++			pages,
++			priv->mem_window_len,
++			vma->vm_page_prot)) {
++		return -EAGAIN;
++	}
++	return 0;
++}
++
++static const struct file_operations
++rpivid_mem_fops = {
++	.owner = THIS_MODULE,
++	.open = rpivid_mem_open,
++	.release = rpivid_mem_release,
++	.mmap = rpivid_mem_mmap,
++};
++
++static const struct of_device_id rpivid_mem_of_match[];
++static int rpivid_mem_probe(struct platform_device *pdev)
++{
++	int err;
++	const struct of_device_id *id;
++	struct device *dev = &pdev->dev;
++	struct resource *ioresource;
++	struct rpivid_mem_priv *priv;
++
++	/* Allocate buffers and instance data */
++
++	priv = kzalloc(sizeof(struct rpivid_mem_priv), GFP_KERNEL);
++
++	if (!priv) {
++		err = -ENOMEM;
++		goto failed_inst_alloc;
++	}
++	platform_set_drvdata(pdev, priv);
++
++	priv->dev = dev;
++	id = of_match_device(rpivid_mem_of_match, dev);
++	if (!id)
++		return -EINVAL;
++	priv->name = id->data;
++
++	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (ioresource) {
++		priv->regs_phys = ioresource->start;
++		priv->mem_window_len = ioresource->end - ioresource->start;
++	} else {
++		dev_err(priv->dev, "failed to get IO resource");
++		err = -ENOENT;
++		goto failed_get_resource;
++	}
++
++	/* Create character device entries */
++
++	err = alloc_chrdev_region(&priv->devid,
++				  DEVICE_MINOR, 2, priv->name);
++	if (err != 0) {
++		dev_err(priv->dev, "unable to allocate device number");
++		goto failed_alloc_chrdev;
++	}
++	cdev_init(&priv->rpivid_mem_cdev, &rpivid_mem_fops);
++	priv->rpivid_mem_cdev.owner = THIS_MODULE;
++	err = cdev_add(&priv->rpivid_mem_cdev, priv->devid, 2);
++	if (err != 0) {
++		dev_err(priv->dev, "unable to register device");
++		goto failed_cdev_add;
++	}
++
++	/* Create sysfs entries */
++
++	priv->class = class_create(THIS_MODULE, priv->name);
++	if (IS_ERR(priv->class)) {
++		err = PTR_ERR(priv->class);
++		goto failed_class_create;
++	}
++
++	dev = device_create(priv->class, NULL, priv->devid, NULL, priv->name);
++	if (IS_ERR(dev)) {
++		err = PTR_ERR(dev);
++		goto failed_device_create;
++	}
++
++	/* Legacy alias */
++	{
++		char *oldname = kstrdup(priv->name, GFP_KERNEL);
++
++		oldname[1] = 'a';
++		oldname[2] = 'r';
++		oldname[3] = 'g';
++		oldname[4] = 'o';
++		oldname[5] = 'n';
++		dev = device_create(priv->class, NULL, priv->devid + 1, NULL,
++				    oldname + 1);
++		kfree(oldname);
++
++		if (IS_ERR(dev)) {
++			err = PTR_ERR(dev);
++			goto failed_legacy_device_create;
++		}
++	}
++
++	dev_info(priv->dev, "%s initialised: Registers at 0x%08lx length 0x%08lx",
++		priv->name, priv->regs_phys, priv->mem_window_len);
++
++	return 0;
++
++failed_legacy_device_create:
++	device_destroy(priv->class, priv->devid);
++failed_device_create:
++	class_destroy(priv->class);
++failed_class_create:
++	cdev_del(&priv->rpivid_mem_cdev);
++failed_cdev_add:
++	unregister_chrdev_region(priv->devid, 1);
++failed_alloc_chrdev:
++failed_get_resource:
++	kfree(priv);
++failed_inst_alloc:
++	dev_err(&pdev->dev, "could not load rpivid_mem");
++	return err;
++}
++
++static int rpivid_mem_remove(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	struct rpivid_mem_priv *priv = platform_get_drvdata(pdev);
++
++	device_destroy(priv->class, priv->devid + 1);
++	device_destroy(priv->class, priv->devid);
++	class_destroy(priv->class);
++	cdev_del(&priv->rpivid_mem_cdev);
++	unregister_chrdev_region(priv->devid, 1);
++	kfree(priv);
++
++	dev_info(dev, "%s driver removed - OK", priv->name);
++	return 0;
++}
++
++static const struct of_device_id rpivid_mem_of_match[] = {
++	{
++		.compatible = "raspberrypi,rpivid-hevc-decoder",
++		.data = "rpivid-hevcmem",
++	},
++	{
++		.compatible = "raspberrypi,rpivid-h264-decoder",
++		.data = "rpivid-h264mem",
++	},
++	{
++		.compatible = "raspberrypi,rpivid-vp9-decoder",
++		.data = "rpivid-vp9mem",
++	},
++	/* The "intc" is included as this block of hardware contains the
++	 * "frame done" status flags.
++	 */
++	{
++		.compatible = "raspberrypi,rpivid-local-intc",
++		.data = "rpivid-intcmem",
++	},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, rpivid_mem_of_match);
++
++static struct platform_driver rpivid_mem_driver = {
++	.probe = rpivid_mem_probe,
++	.remove = rpivid_mem_remove,
++	.driver = {
++		   .name = DRIVER_NAME,
++		   .owner = THIS_MODULE,
++		   .of_match_table = rpivid_mem_of_match,
++		   },
++};
++
++module_platform_driver(rpivid_mem_driver);
++
++MODULE_ALIAS("platform:rpivid-mem");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Driver for accessing RPiVid decoder registers from userspace");
++MODULE_AUTHOR("Jonathan Bell <jonathan@raspberrypi.org>");
+--- a/drivers/mfd/bcm2835-pm.c
++++ b/drivers/mfd/bcm2835-pm.c
+@@ -50,14 +50,14 @@ static int bcm2835_pm_probe(struct platf
+ 	if (ret)
+ 		return ret;
+ 
+-	/* Map the ARGON ASB regs if present. */
++	/* Map the RPiVid ASB regs if present. */
+ 	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ 	if (res) {
+-		pm->arg_asb = devm_ioremap_resource(dev, res);
+-		if (IS_ERR(pm->arg_asb)) {
+-			dev_err(dev, "Failed to map ARGON ASB: %ld\n",
+-				PTR_ERR(pm->arg_asb));
+-			return PTR_ERR(pm->arg_asb);
++		pm->rpivid_asb = devm_ioremap_resource(dev, res);
++		if (IS_ERR(pm->rpivid_asb)) {
++			dev_err(dev, "Failed to map RPiVid ASB: %ld\n",
++				PTR_ERR(pm->rpivid_asb));
++			return PTR_ERR(pm->rpivid_asb);
+ 		}
+ 	}
+ 
+--- a/drivers/soc/bcm/bcm2835-power.c
++++ b/drivers/soc/bcm/bcm2835-power.c
+@@ -637,15 +637,15 @@ static int bcm2835_power_probe(struct pl
+ 	power->base = pm->base;
+ 	power->asb = pm->asb;
+ 
+-	/* 2711 hack: the new ARGON ASB took over V3D, which is our
++	/* 2711 hack: the new RPiVid ASB took over V3D, which is our
+ 	 * only consumer of this driver so far.  The old ASB seems to
+ 	 * still be present with ISP and H264 bits but no V3D, but I
+ 	 * don't know if that's real or not.  The V3D is in the same
+ 	 * place in the new ASB as the old one, so just poke the new
+ 	 * one for now.
+ 	 */
+-	if (pm->arg_asb) {
+-		power->asb = pm->arg_asb;
++	if (pm->rpivid_asb) {
++		power->asb = pm->rpivid_asb;
+ 		power->is_2711 = true;
+ 	}
+ 
+--- a/include/linux/mfd/bcm2835-pm.h
++++ b/include/linux/mfd/bcm2835-pm.h
+@@ -9,7 +9,7 @@ struct bcm2835_pm {
+ 	struct device *dev;
+ 	void __iomem *base;
+ 	void __iomem *asb;
+-	void __iomem *arg_asb;
++	void __iomem *rpivid_asb;
+ };
+ 
+ #endif /* BCM2835_MFD_PM_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0151-hid-usb-Add-device-quirks-for-Freeway-Airmouse-T3-an.patch b/target/linux/bcm27xx/patches-5.10/950-0151-hid-usb-Add-device-quirks-for-Freeway-Airmouse-T3-an.patch
new file mode 100644
index 0000000000..217b2117d4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0151-hid-usb-Add-device-quirks-for-Freeway-Airmouse-T3-an.patch
@@ -0,0 +1,63 @@
+From 25805001705a4b01edec63c6ec63482d16dce8d1 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Thu, 1 Aug 2019 16:41:20 +0100
+Subject: [PATCH] hid: usb: Add device quirks for Freeway Airmouse T3
+ and MX3
+
+These wireless mouse/keyboard combo remote control devices specify
+multiple "wheel" events in their report descriptors. The wheel events
+are incorrectly defined and apparently map to accelerometer data, leading
+to spurious mouse scroll events being generated at an extreme rate when
+the device is moved.
+
+As a workaround, use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE to mask
+feeding the extra wheel events to the input subsystem.
+
+See: https://github.com/raspberrypi/firmware/issues/1189
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/hid/hid-ids.h    | 6 ++++++
+ drivers/hid/hid-quirks.c | 2 ++
+ 2 files changed, 8 insertions(+)
+
+--- a/drivers/hid/hid-ids.h
++++ b/drivers/hid/hid-ids.h
+@@ -221,6 +221,9 @@
+ #define USB_VENDOR_ID_BAANTO		0x2453
+ #define USB_DEVICE_ID_BAANTO_MT_190W2	0x0100
+ 
++#define USB_VENDOR_ID_BEKEN		0x25a7
++#define USB_DEVICE_ID_AIRMOUSE_T3	0x2402
++
+ #define USB_VENDOR_ID_BELKIN		0x050d
+ #define USB_DEVICE_ID_FLIP_KVM		0x3201
+ 
+@@ -1268,6 +1271,9 @@
+ #define USB_VENDOR_ID_XAT	0x2505
+ #define USB_DEVICE_ID_XAT_CSR	0x0220
+ 
++#define USB_VENDOR_ID_XENTA			0x1d57
++#define USB_DEVICE_ID_AIRMOUSE_MX3		0xad03
++
+ #define USB_VENDOR_ID_XIN_MO			0x16c0
+ #define USB_DEVICE_ID_XIN_MO_DUAL_ARCADE	0x05e1
+ #define USB_DEVICE_ID_THT_2P_ARCADE		0x75e1
+--- a/drivers/hid/hid-quirks.c
++++ b/drivers/hid/hid-quirks.c
+@@ -41,6 +41,7 @@ static const struct hid_device_id hid_qu
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS682), HID_QUIRK_NOGET },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS692), HID_QUIRK_NOGET },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM), HID_QUIRK_NOGET },
++	{ HID_USB_DEVICE(USB_VENDOR_ID_BEKEN, USB_DEVICE_ID_AIRMOUSE_T3), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH), HID_QUIRK_MULTI_INPUT },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE2), HID_QUIRK_ALWAYS_POLL },
+@@ -193,6 +194,7 @@ static const struct hid_device_id hid_qu
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_QUAD_USB_JOYPAD), HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE), HID_QUIRK_MULTI_INPUT },
+ 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_GROUP_AUDIO), HID_QUIRK_NOGET },
++	{ HID_USB_DEVICE(USB_VENDOR_ID_XENTA, USB_DEVICE_ID_AIRMOUSE_MX3), HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE },
+ 
+ 	{ 0 }
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0152-Add-HDMI1-facility-to-the-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0152-Add-HDMI1-facility-to-the-driver.patch
new file mode 100644
index 0000000000..7a4a48aaed
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0152-Add-HDMI1-facility-to-the-driver.patch
@@ -0,0 +1,85 @@
+From 3dbfcfbd3f9a0cae3bb426954ad5fd7d193507cc Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Tue, 16 Jul 2019 12:18:21 +0100
+Subject: [PATCH] Add HDMI1 facility to the driver.
+
+For generic ALSA, all you need is the bcm2835.h change, but
+have also added structures for IEC958 HDMI. Not sure how to
+test those.
+---
+ .../vc04_services/bcm2835-audio/bcm2835.c     | 29 ++++++++++++++++---
+ .../vc04_services/bcm2835-audio/bcm2835.h     |  4 ++-
+ 2 files changed, 28 insertions(+), 5 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -79,7 +79,11 @@ static int bcm2835_audio_alsa_newpcm(str
+ 	if (err)
+ 		return err;
+ 
+-	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI", 1, 0, 1, true);
++	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI", 1, AUDIO_DEST_HDMI0, 1, true);
++	if (err)
++		return err;
++
++	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI1", 2, AUDIO_DEST_HDMI1, 1, true);
+ 	if (err)
+ 		return err;
+ 
+@@ -106,7 +110,7 @@ static struct bcm2835_audio_driver bcm28
+ 	.newctl = snd_bcm2835_new_ctl,
+ };
+ 
+-static struct bcm2835_audio_driver bcm2835_audio_hdmi = {
++static struct bcm2835_audio_driver bcm2835_audio_hdmi0 = {
+ 	.driver = {
+ 		.name = "bcm2835_hdmi",
+ 		.owner = THIS_MODULE,
+@@ -116,7 +120,20 @@ static struct bcm2835_audio_driver bcm28
+ 	.minchannels = 1,
+ 	.newpcm = bcm2835_audio_simple_newpcm,
+ 	.newctl = snd_bcm2835_new_hdmi_ctl,
+-	.route = AUDIO_DEST_HDMI
++	.route = AUDIO_DEST_HDMI0
++};
++
++static struct bcm2835_audio_driver bcm2835_audio_hdmi1 = {
++	.driver = {
++		.name = "bcm2835_hdmi",
++		.owner = THIS_MODULE,
++	},
++	.shortname = "bcm2835 HDMI 1",
++	.longname  = "bcm2835 HDMI 1",
++	.minchannels = 1,
++	.newpcm = bcm2835_audio_simple_newpcm,
++	.newctl = snd_bcm2835_new_hdmi_ctl,
++	.route = AUDIO_DEST_HDMI1
+ };
+ 
+ static struct bcm2835_audio_driver bcm2835_audio_headphones = {
+@@ -143,7 +160,11 @@ static struct bcm2835_audio_drivers chil
+ 		.is_enabled = &enable_compat_alsa,
+ 	},
+ 	{
+-		.audio_driver = &bcm2835_audio_hdmi,
++		.audio_driver = &bcm2835_audio_hdmi0,
++		.is_enabled = &enable_hdmi,
++	},
++	{
++		.audio_driver = &bcm2835_audio_hdmi1,
+ 		.is_enabled = &enable_hdmi,
+ 	},
+ 	{
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
+@@ -33,7 +33,9 @@ enum {
+ enum snd_bcm2835_route {
+ 	AUDIO_DEST_AUTO = 0,
+ 	AUDIO_DEST_HEADPHONES = 1,
+-	AUDIO_DEST_HDMI = 2,
++	AUDIO_DEST_HDMI = 2,  // for backwards compatibility.
++	AUDIO_DEST_HDMI0 = 2,
++	AUDIO_DEST_HDMI1 = 3,
+ 	AUDIO_DEST_MAX,
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0153-net-bcmgenet-Workaround-2-for-Pi4-Ethernet-fail.patch b/target/linux/bcm27xx/patches-5.10/950-0153-net-bcmgenet-Workaround-2-for-Pi4-Ethernet-fail.patch
new file mode 100644
index 0000000000..5f446dcc2f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0153-net-bcmgenet-Workaround-2-for-Pi4-Ethernet-fail.patch
@@ -0,0 +1,51 @@
+From 5d5a886b8ae7d18e6aeb44acd37fc4bd23ca1952 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 9 Aug 2019 08:51:43 +0100
+Subject: [PATCH] net: bcmgenet: Workaround #2 for Pi4 Ethernet fail
+
+Some combinations of Pi 4Bs and Ethernet switches don't reliably get a
+DCHP-assigned IP address, leaving the unit with a self=assigned 169.254
+address. In the failure case, the Pi is left able to receive packets
+but not send them, suggesting that the MAC<->PHY link is getting into
+a bad state.
+
+It has been found empirically that skipping a reset step by the genet
+driver prevents the failures. No downsides have been discovered yet,
+and unlike the forced renegotiation it doesn't increase the time to
+get an IP address, so the workaround is enabled by default; add
+
+  genet.skip_umac_reset=n
+
+to the command line to disable it.
+
+See: https://github.com/raspberrypi/linux/issues/3108
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+@@ -67,6 +67,9 @@
+ 
+ /* Forward declarations */
+ static void bcmgenet_set_rx_mode(struct net_device *dev);
++static bool skip_umac_reset = true;
++module_param(skip_umac_reset, bool, 0444);
++MODULE_PARM_DESC(skip_umac_reset, "Skip UMAC reset step");
+ 
+ static inline void bcmgenet_writel(u32 value, void __iomem *offset)
+ {
+@@ -2426,6 +2429,11 @@ static void reset_umac(struct bcmgenet_p
+ 	bcmgenet_rbuf_ctrl_set(priv, 0);
+ 	udelay(10);
+ 
++	if (skip_umac_reset) {
++		pr_warn("Skipping UMAC reset\n");
++		return;
++	}
++
+ 	/* issue soft reset and disable MAC while updating its registers */
+ 	bcmgenet_umac_writel(priv, CMD_SW_RESET, UMAC_CMD);
+ 	udelay(2);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0154-xhci-Use-more-event-ring-segment-table-entries.patch b/target/linux/bcm27xx/patches-5.10/950-0154-xhci-Use-more-event-ring-segment-table-entries.patch
new file mode 100644
index 0000000000..b80544a16b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0154-xhci-Use-more-event-ring-segment-table-entries.patch
@@ -0,0 +1,60 @@
+From 56212428792d53e5d2c741733d5f284331e84c97 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 13 Aug 2019 15:53:29 +0100
+Subject: [PATCH] xhci: Use more event ring segment table entries
+
+Users have reported log spam created by "Event Ring Full" xHC event
+TRBs. These are caused by interrupt latency in conjunction with a very
+busy set of devices on the bus. The errors are benign, but throughput
+will suffer as the xHC will pause processing of transfers until the
+event ring is drained by the kernel. Expand the number of event TRB slots
+available by increasing the number of event ring segments in the ERST.
+
+Controllers have a hardware-defined limit as to the number of ERST
+entries they can process, so make the actual number in use
+min(ERST_MAX_SEGS, hw_max).
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/usb/host/xhci-mem.c | 8 +++++---
+ drivers/usb/host/xhci.h     | 4 ++--
+ 2 files changed, 7 insertions(+), 5 deletions(-)
+
+--- a/drivers/usb/host/xhci-mem.c
++++ b/drivers/usb/host/xhci-mem.c
+@@ -2525,9 +2525,11 @@ int xhci_mem_init(struct xhci_hcd *xhci,
+ 	 * Event ring setup: Allocate a normal ring, but also setup
+ 	 * the event ring segment table (ERST).  Section 4.9.3.
+ 	 */
++	val2 = 1 << HCS_ERST_MAX(xhci->hcs_params2);
++	val2 = min_t(unsigned int, ERST_MAX_SEGS, val2);
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Allocating event ring");
+-	xhci->event_ring = xhci_ring_alloc(xhci, ERST_NUM_SEGS, 1, TYPE_EVENT,
+-					0, flags);
++	xhci->event_ring = xhci_ring_alloc(xhci, val2, 1, TYPE_EVENT,
++					   0, flags);
+ 	if (!xhci->event_ring)
+ 		goto fail;
+ 	if (xhci_check_trb_in_td_math(xhci) < 0)
+@@ -2540,7 +2542,7 @@ int xhci_mem_init(struct xhci_hcd *xhci,
+ 	/* set ERST count with the number of entries in the segment table */
+ 	val = readl(&xhci->ir_set->erst_size);
+ 	val &= ERST_SIZE_MASK;
+-	val |= ERST_NUM_SEGS;
++	val |= val2;
+ 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
+ 			"// Write ERST size = %i to ir_set 0 (some bits preserved)",
+ 			val);
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -1650,8 +1650,8 @@ struct urb_priv {
+  * Each segment table entry is 4*32bits long.  1K seems like an ok size:
+  * (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table,
+  * meaning 64 ring segments.
+- * Initial allocated size of the ERST, in number of entries */
+-#define	ERST_NUM_SEGS	1
++ * Maximum number of segments in the ERST */
++#define	ERST_MAX_SEGS	8
+ /* Initial allocated size of the ERST, in number of entries */
+ #define	ERST_SIZE	64
+ /* Initial number of event segment rings allocated */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0155-configs-arm64-bcm2711-Enable-V3D.patch b/target/linux/bcm27xx/patches-5.10/950-0155-configs-arm64-bcm2711-Enable-V3D.patch
new file mode 100644
index 0000000000..002602b8c1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0155-configs-arm64-bcm2711-Enable-V3D.patch
@@ -0,0 +1,28 @@
+From d724240a2db99f47c3eb8330960b14a2719ed7cd Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 15 Aug 2019 12:02:34 +0100
+Subject: [PATCH] configs: arm64/bcm2711: Enable V3D
+
+Enable the V3D driver, which depends on BCM2835_POWER.
+
+Originally submitted by GitHub user 'phire' in a slightly different
+form.
+
+See: https://github.com/raspberrypi/linux/pull/3063
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/v3d/Kconfig
++++ b/drivers/gpu/drm/v3d/Kconfig
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0-only
+ config DRM_V3D
+ 	tristate "Broadcom V3D 3.x and newer"
+-	depends on ARCH_BCM || ARCH_BCMSTB || COMPILE_TEST
++	depends on ARCH_BCM || ARCH_BCMSTB || ARCH_BCM2835 || COMPILE_TEST
+ 	depends on DRM
+ 	depends on COMMON_CLK
+ 	depends on MMU
diff --git a/target/linux/bcm27xx/patches-5.10/950-0156-arch-arm-Add-model-string-to-cpuinfo.patch b/target/linux/bcm27xx/patches-5.10/950-0156-arch-arm-Add-model-string-to-cpuinfo.patch
new file mode 100644
index 0000000000..8624ad929c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0156-arch-arm-Add-model-string-to-cpuinfo.patch
@@ -0,0 +1,36 @@
+From 5f7b32d4608113927128391620cd80048db52a2e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 3 Sep 2019 18:16:56 +0100
+Subject: [PATCH] arch/arm: Add model string to cpuinfo
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/kernel/setup.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/arch/arm/kernel/setup.c
++++ b/arch/arm/kernel/setup.c
+@@ -1255,6 +1255,8 @@ static int c_show(struct seq_file *m, vo
+ {
+ 	int i, j;
+ 	u32 cpuid;
++	struct device_node *np;
++	const char *model;
+ 
+ 	for_each_online_cpu(i) {
+ 		/*
+@@ -1314,6 +1316,14 @@ static int c_show(struct seq_file *m, vo
+ 	seq_printf(m, "Revision\t: %04x\n", system_rev);
+ 	seq_printf(m, "Serial\t\t: %s\n", system_serial);
+ 
++	np = of_find_node_by_path("/");
++	if (np) {
++		if (!of_property_read_string(np, "model",
++					     &model))
++			seq_printf(m, "Model\t\t: %s\n", model);
++		of_node_put(np);
++	}
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0157-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch b/target/linux/bcm27xx/patches-5.10/950-0157-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch
new file mode 100644
index 0000000000..5d2cd9691a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0157-arch-arm64-Add-Revision-Serial-Model-to-cpuinfo.patch
@@ -0,0 +1,58 @@
+From 24f0d858fbabe69c32829edc0e2765b1fa5cc8ec Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 3 Sep 2019 18:17:25 +0100
+Subject: [PATCH] arch/arm64: Add Revision, Serial, Model to cpuinfo
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm64/kernel/cpuinfo.c | 25 +++++++++++++++++++++++++
+ 1 file changed, 25 insertions(+)
+
+--- a/arch/arm64/kernel/cpuinfo.c
++++ b/arch/arm64/kernel/cpuinfo.c
+@@ -17,6 +17,7 @@
+ #include <linux/elf.h>
+ #include <linux/init.h>
+ #include <linux/kernel.h>
++#include <linux/of_platform.h>
+ #include <linux/personality.h>
+ #include <linux/preempt.h>
+ #include <linux/printk.h>
+@@ -137,6 +138,10 @@ static int c_show(struct seq_file *m, vo
+ {
+ 	int i, j;
+ 	bool compat = personality(current->personality) == PER_LINUX32;
++	struct device_node *np;
++	const char *model;
++	const char *serial;
++	u32 revision;
+ 
+ 	for_each_online_cpu(i) {
+ 		struct cpuinfo_arm64 *cpuinfo = &per_cpu(cpu_data, i);
+@@ -197,6 +202,26 @@ static int c_show(struct seq_file *m, vo
+ 		seq_printf(m, "CPU revision\t: %d\n\n", MIDR_REVISION(midr));
+ 	}
+ 
++	seq_printf(m, "Hardware\t: BCM2835\n");
++
++	np = of_find_node_by_path("/system");
++	if (np) {
++		if (!of_property_read_u32(np, "linux,revision", &revision))
++			seq_printf(m, "Revision\t: %04x\n", revision);
++		of_node_put(np);
++	}
++
++	np = of_find_node_by_path("/");
++	if (np) {
++		if (!of_property_read_string(np, "serial-number",
++					     &serial))
++			seq_printf(m, "Serial\t\t: %s\n", serial);
++		if (!of_property_read_string(np, "model",
++					     &model))
++			seq_printf(m, "Model\t\t: %s\n", model);
++		of_node_put(np);
++	}
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0158-media-dt-bindings-Add-binding-for-the-Sony-IMX219-se.patch b/target/linux/bcm27xx/patches-5.10/950-0158-media-dt-bindings-Add-binding-for-the-Sony-IMX219-se.patch
new file mode 100644
index 0000000000..b957f8f3f9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0158-media-dt-bindings-Add-binding-for-the-Sony-IMX219-se.patch
@@ -0,0 +1,77 @@
+From 4e4be52826939d4baa054e0c859fffd5c9ee7cd6 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 28 Aug 2019 13:34:30 +0100
+Subject: [PATCH] media: dt-bindings: Add binding for the Sony IMX219
+ sensor
+
+The IMX219 is an 8MPix CSI2 sensor, supporting 2 or 4 data lanes.
+Document the binding for this device.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../devicetree/bindings/media/i2c/imx219.txt  | 59 +++++++++++++++++++
+ 1 file changed, 59 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/i2c/imx219.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/i2c/imx219.txt
+@@ -0,0 +1,59 @@
++* Sony 1/4.0-Inch 8Mpixel CMOS Digital Image Sensor
++
++The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor with
++an active array size of 3280H x 2464V. It is programmable through I2C
++interface. The I2C address is fixed to 0x10 as per sensor data sheet.
++Image data is sent through MIPI CSI-2, which is configured as either 2 or 4
++data lanes.
++
++Required Properties:
++- compatible: value should be "sony,imx219" for imx219 sensor
++- reg: I2C bus address of the device
++- clocks: reference to the xclk input clock.
++- clock-names: should be "xclk".
++- DOVDD-supply: Digital I/O voltage supply, 1.8 volts
++- AVDD-supply: Analog voltage supply, 2.8 volts
++- DVDD-supply: Digital core voltage supply, 1.2 volts
++
++Optional Properties:
++- xclr-gpios: reference to the GPIO connected to the xclr pin, if any. Must be
++	      released after all supplies are applied.
++	      This is an active high signal to the imx219.
++
++The imx219 device node should contain one 'port' child node with
++an 'endpoint' subnode. For further reading on port node refer to
++Documentation/devicetree/bindings/media/video-interfaces.txt.
++
++Endpoint node required properties for CSI-2 connection are:
++- remote-endpoint: a phandle to the bus receiver's endpoint node.
++- clock-lanes: should be set to <0> (clock lane on hardware lane 0)
++- data-lanes: should be set to <1 2>, or  <1 2 3 4> (two or four lane CSI-2
++  supported)
++
++Example:
++	sensor@10 {
++		compatible = "sony,imx219";
++		reg = <0x10>;
++		#address-cells = <1>;
++		#size-cells = <0>;
++		clocks = <&imx219_clk>;
++		clock-names = "xclk";
++		xclr-gpios = <&gpio_sensor 0 0>;
++		DOVDD-supply = <&vgen4_reg>; /* 1.8v */
++		AVDD-supply = <&vgen3_reg>;  /* 2.8v */
++		DVDD-supply = <&vgen2_reg>;  /* 1.2v */
++
++		imx219_clk: camera-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <24000000>;
++		};
++
++		port {
++			sensor_out: endpoint {
++				remote-endpoint = <&csiss_in>;
++				clock-lanes = <0>;
++				data-lanes = <1 2>;
++			};
++		};
++	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0159-v4l2-Add-a-Greyworld-AWB-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0159-v4l2-Add-a-Greyworld-AWB-mode.patch
new file mode 100644
index 0000000000..5755cde42c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0159-v4l2-Add-a-Greyworld-AWB-mode.patch
@@ -0,0 +1,34 @@
+From 1c6c1ab42e61cdca555c85bdde5677b13b5cd5f3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Fri, 6 Sep 2019 15:04:51 +0100
+Subject: [PATCH] v4l2: Add a Greyworld AWB mode.
+
+Adds a simple greyworld white balance preset, mainly for use
+with cameras without an IR filter (eg Raspberry Pi NoIR)
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/media/v4l2-core/v4l2-ctrls.c | 1 +
+ include/uapi/linux/v4l2-controls.h   | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/drivers/media/v4l2-core/v4l2-ctrls.c
++++ b/drivers/media/v4l2-core/v4l2-ctrls.c
+@@ -275,6 +275,7 @@ const char * const *v4l2_ctrl_get_menu(u
+ 		"Flash",
+ 		"Cloudy",
+ 		"Shade",
++		"Greyworld",
+ 		NULL,
+ 	};
+ 	static const char * const camera_iso_sensitivity_auto[] = {
+--- a/include/uapi/linux/v4l2-controls.h
++++ b/include/uapi/linux/v4l2-controls.h
+@@ -886,6 +886,7 @@ enum v4l2_auto_n_preset_white_balance {
+ 	V4L2_WHITE_BALANCE_FLASH		= 7,
+ 	V4L2_WHITE_BALANCE_CLOUDY		= 8,
+ 	V4L2_WHITE_BALANCE_SHADE		= 9,
++	V4L2_WHITE_BALANCE_GREYWORLD		= 10,
+ };
+ 
+ #define V4L2_CID_WIDE_DYNAMIC_RANGE		(V4L2_CID_CAMERA_CLASS_BASE+21)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0160-staging-bcm2835-camera-Add-greyworld-AWB-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0160-staging-bcm2835-camera-Add-greyworld-AWB-mode.patch
new file mode 100644
index 0000000000..cbbe6727cd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0160-staging-bcm2835-camera-Add-greyworld-AWB-mode.patch
@@ -0,0 +1,37 @@
+From 827f9e8f76bd2674835026e37aba31b3c3a784e4 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Fri, 6 Sep 2019 15:13:06 +0100
+Subject: [PATCH] staging: bcm2835-camera: Add greyworld AWB mode
+
+This is mainly used for the NoIR camera which has no IR
+filter and can completely confuse normal AWB presets.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/staging/vc04_services/bcm2835-camera/controls.c    | 4 ++++
+ drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h | 1 +
+ 2 files changed, 5 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
+@@ -474,6 +474,10 @@ static int ctrl_set_awb_mode(struct bm28
+ 	case V4L2_WHITE_BALANCE_SHADE:
+ 		u32_value = MMAL_PARAM_AWBMODE_SHADE;
+ 		break;
++
++	case V4L2_WHITE_BALANCE_GREYWORLD:
++		u32_value = MMAL_PARAM_AWBMODE_GREYWORLD;
++		break;
+ 	}
+ 
+ 	return vchiq_mmal_port_parameter_set(dev->instance, control,
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -313,6 +313,7 @@ enum mmal_parameter_awbmode {
+ 	MMAL_PARAM_AWBMODE_INCANDESCENT,
+ 	MMAL_PARAM_AWBMODE_FLASH,
+ 	MMAL_PARAM_AWBMODE_HORIZON,
++	MMAL_PARAM_AWBMODE_GREYWORLD,
+ };
+ 
+ enum mmal_parameter_imagefx {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0161-drm-v3d-Delete-pm_runtime-support.patch b/target/linux/bcm27xx/patches-5.10/950-0161-drm-v3d-Delete-pm_runtime-support.patch
new file mode 100644
index 0000000000..f6fdee0f48
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0161-drm-v3d-Delete-pm_runtime-support.patch
@@ -0,0 +1,62 @@
+From 194db68e9c6c18c536714859e788de36a146dabb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 18 Sep 2019 17:22:36 +0100
+Subject: [PATCH] drm/v3d: Delete pm_runtime support
+
+The pm_runtime was blocking changelist submission, so delete it as a
+temporary workaround.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_gem.c |  5 -----
+ drivers/gpu/drm/v3d/v3d_mmu.c | 11 -----------
+ 2 files changed, 16 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -478,10 +478,6 @@ v3d_job_init(struct v3d_dev *v3d, struct
+ 	job->v3d = v3d;
+ 	job->free = free;
+ 
+-	ret = pm_runtime_get_sync(v3d->drm.dev);
+-	if (ret < 0)
+-		return ret;
+-
+ 	xa_init_flags(&job->deps, XA_FLAGS_ALLOC);
+ 
+ 	ret = drm_syncobj_find_fence(file_priv, in_sync, 0, 0, &in_fence);
+@@ -498,7 +494,6 @@ v3d_job_init(struct v3d_dev *v3d, struct
+ 	return 0;
+ fail:
+ 	xa_destroy(&job->deps);
+-	pm_runtime_put_autosuspend(v3d->drm.dev);
+ 	return ret;
+ }
+ 
+--- a/drivers/gpu/drm/v3d/v3d_mmu.c
++++ b/drivers/gpu/drm/v3d/v3d_mmu.c
+@@ -36,14 +36,6 @@ static int v3d_mmu_flush_all(struct v3d_
+ {
+ 	int ret;
+ 
+-	/* Keep power on the device on until we're done with this
+-	 * call, but skip the flush if the device is off and will be
+-	 * reset when powered back on.
+-	 */
+-	ret = pm_runtime_get_if_in_use(v3d->dev);
+-	if (ret == 0)
+-		return 0;
+-
+ 	/* Make sure that another flush isn't already running when we
+ 	 * start this one.
+ 	 */
+@@ -71,9 +63,6 @@ static int v3d_mmu_flush_all(struct v3d_
+ 	if (ret)
+ 		dev_err(v3d->drm.dev, "MMUC flush wait idle failed\n");
+ 
+-	pm_runtime_mark_last_busy(v3d->dev);
+-	pm_runtime_put_autosuspend(v3d->dev);
+-
+ 	return ret;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0162-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch b/target/linux/bcm27xx/patches-5.10/950-0162-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch
new file mode 100644
index 0000000000..c3be3d58e6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0162-kbuild-Allow-.dtbo-overlays-to-be-built-piecemeal.patch
@@ -0,0 +1,36 @@
+From 39e3ab3e857a617b982dbeee2037f13edc46f799 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 23 Sep 2019 09:26:41 +0100
+Subject: [PATCH] kbuild: Allow .dtbo overlays to be built piecemeal
+
+Before 4.20, it was possible to build an arbitrary overlay by copying
+it to arm/boot/dts/overlays/mytest-overlay.dts and running:
+
+    make ARCH=arm overlays/mytest.dtbo
+
+In 4.20 the .dtb build rules were centralised, requiring the dowstream
+.dtbo build rules to be changed. They were, enough to support "make ...
+dtbs", but not sufficiently to allow this ad-hoc, one-off building of
+individual files.
+
+Add the missing makefile rule to support this way of building.
+
+See: https://github.com/raspberrypi/linux/issues/3250
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ Makefile | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/Makefile
++++ b/Makefile
+@@ -1354,6 +1354,9 @@ ifneq ($(dtstree),)
+ %.dtb: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
+ 
++%.dtbo: prepare3 scripts_dtc
++	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
++
+ PHONY += dtbs dtbs_install dtbs_check
+ dtbs: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0163-ARM-bcm-Switch-board-clk-and-pinctrl-to-bcm2711-comp.patch b/target/linux/bcm27xx/patches-5.10/950-0163-ARM-bcm-Switch-board-clk-and-pinctrl-to-bcm2711-comp.patch
new file mode 100644
index 0000000000..30f0455942
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0163-ARM-bcm-Switch-board-clk-and-pinctrl-to-bcm2711-comp.patch
@@ -0,0 +1,26 @@
+From 676c69523fd366c0dfac97d2c343f565b563f62d Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+Date: Thu, 19 Sep 2019 20:45:30 +0200
+Subject: [PATCH] ARM: bcm: Switch board, clk and pinctrl to bcm2711
+ compatible
+
+After the decision to use bcm2711 compatible for upstream, we should
+switch all accepted compatibles to bcm2711. So we can boot with
+one DTB the down- and the upstream kernel.
+
+Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -109,7 +109,7 @@ static const char * const bcm2835_compat
+ #ifdef CONFIG_ARCH_MULTI_V7
+ 	"brcm,bcm2836",
+ 	"brcm,bcm2837",
+-	"brcm,bcm2838",
++	"brcm,bcm2711",
+ #endif
+ 	NULL
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0164-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch b/target/linux/bcm27xx/patches-5.10/950-0164-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch
new file mode 100644
index 0000000000..3feaba9482
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0164-Rename-HDMI-ALSA-device-names-check-for-enable-state.patch
@@ -0,0 +1,139 @@
+From 8f1af3614dd55e3c725b7f28f68ee6404e5f2e1a Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Tue, 24 Sep 2019 18:26:55 +0100
+Subject: [PATCH] Rename HDMI ALSA device names, check for enable state
+
+HDMI Alsa devices renamed to match names used by DRM, to
+HDMI 1 and HDMI 2
+
+Check for which HDMI devices are connected and only create
+devices for those that are present.
+
+The rename of the devices might cause some backwards compatibility
+issues, but since this particular part of the driver needs to be
+specifically enabled, I suspect the number of people who will see
+the problem will be very small.
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+---
+ .../vc04_services/bcm2835-audio/bcm2835.c     | 70 +++++++++++++++++--
+ 1 file changed, 63 insertions(+), 7 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -9,8 +9,9 @@
+ #include <linux/of.h>
+ 
+ #include "bcm2835.h"
++#include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+-static bool enable_hdmi;
++static bool enable_hdmi, enable_hdmi0, enable_hdmi1;
+ static bool enable_headphones;
+ static bool enable_compat_alsa = true;
+ 
+@@ -115,8 +116,8 @@ static struct bcm2835_audio_driver bcm28
+ 		.name = "bcm2835_hdmi",
+ 		.owner = THIS_MODULE,
+ 	},
+-	.shortname = "bcm2835 HDMI",
+-	.longname  = "bcm2835 HDMI",
++	.shortname = "bcm2835 HDMI 1",
++	.longname  = "bcm2835 HDMI 1",
+ 	.minchannels = 1,
+ 	.newpcm = bcm2835_audio_simple_newpcm,
+ 	.newctl = snd_bcm2835_new_hdmi_ctl,
+@@ -128,8 +129,8 @@ static struct bcm2835_audio_driver bcm28
+ 		.name = "bcm2835_hdmi",
+ 		.owner = THIS_MODULE,
+ 	},
+-	.shortname = "bcm2835 HDMI 1",
+-	.longname  = "bcm2835 HDMI 1",
++	.shortname = "bcm2835 HDMI 2",
++	.longname  = "bcm2835 HDMI 2",
+ 	.minchannels = 1,
+ 	.newpcm = bcm2835_audio_simple_newpcm,
+ 	.newctl = snd_bcm2835_new_hdmi_ctl,
+@@ -161,11 +162,11 @@ static struct bcm2835_audio_drivers chil
+ 	},
+ 	{
+ 		.audio_driver = &bcm2835_audio_hdmi0,
+-		.is_enabled = &enable_hdmi,
++		.is_enabled = &enable_hdmi0,
+ 	},
+ 	{
+ 		.audio_driver = &bcm2835_audio_hdmi1,
+-		.is_enabled = &enable_hdmi,
++		.is_enabled = &enable_hdmi1,
+ 	},
+ 	{
+ 		.audio_driver = &bcm2835_audio_headphones,
+@@ -312,6 +313,53 @@ static int snd_add_child_devices(struct
+ 	return 0;
+ }
+ 
++static void set_hdmi_enables(struct device *dev)
++{
++	struct device_node *firmware_node;
++	struct rpi_firmware *firmware;
++	u32 num_displays, i, display_id;
++	int ret;
++
++	firmware_node = of_parse_phandle(dev->of_node, "brcm,firmware", 0);
++	firmware = rpi_firmware_get(firmware_node);
++
++	if (!firmware)
++		return;
++
++	of_node_put(firmware_node);
++
++	ret = rpi_firmware_property(firmware,
++				    RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS,
++				    &num_displays, sizeof(u32));
++
++	if (ret)
++		return;
++
++	for (i = 0; i < num_displays; i++) {
++		display_id = i;
++		ret = rpi_firmware_property(firmware,
++				RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID,
++				&display_id, sizeof(display_id));
++		if (!ret) {
++			if (display_id == 2)
++				enable_hdmi0 = true;
++			if (display_id == 7)
++				enable_hdmi1 = true;
++		}
++	}
++
++	if (!enable_hdmi0 && enable_hdmi1) {
++		/* Swap them over and reassign route. This means
++		 * that if we only have one connected, it is always named
++		 *  HDMI1, irrespective of if its on port HDMI0 or HDMI1.
++		 *  This should match with the naming of HDMI ports in DRM
++		 */
++		enable_hdmi0 = true;
++		enable_hdmi1 = false;
++		bcm2835_audio_hdmi0.route = AUDIO_DEST_HDMI1;
++	}
++}
++
+ static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
+ {
+ 	struct device *dev = &pdev->dev;
+@@ -332,6 +380,14 @@ static int snd_bcm2835_alsa_probe(struct
+ 			 numchans);
+ 	}
+ 
++	if (!enable_compat_alsa) {
++		set_hdmi_enables(dev);
++		// In this mode, always enable analog output
++		enable_headphones = true;
++	} else {
++		enable_hdmi0 = enable_hdmi;
++	}
++
+ 	err = bcm2835_devm_add_vchi_ctx(dev);
+ 	if (err)
+ 		return err;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0165-dt-bindings-Add-binding-for-the-Infineon-IRS1125-sen.patch b/target/linux/bcm27xx/patches-5.10/950-0165-dt-bindings-Add-binding-for-the-Infineon-IRS1125-sen.patch
new file mode 100644
index 0000000000..ae1a0e256c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0165-dt-bindings-Add-binding-for-the-Infineon-IRS1125-sen.patch
@@ -0,0 +1,66 @@
+From effbf244f11642594a739755285cd16591831b13 Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Thu, 10 Oct 2019 19:12:08 +0200
+Subject: [PATCH] dt-bindings: Add binding for the Infineon IRS1125
+ sensor
+
+Adds a binding for the Infineon IRS1125 time-of-flight depth
+sensor.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ .../devicetree/bindings/media/i2c/irs1125.txt | 48 +++++++++++++++++++
+ 1 file changed, 48 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/i2c/irs1125.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/i2c/irs1125.txt
+@@ -0,0 +1,48 @@
++* Infineon irs1125 time of flight sensor
++
++The Infineon irs1125 is a time of flight digital image sensor with
++an active array size of 352H x 286V. It is programmable through I2C
++interface. The I2C address defaults to 0x3D, but can be reconfigured
++to address 0x3C or 0x41 via I2C commands. Image data is sent through
++MIPI CSI-2, which is configured as either 1 or 2 data lanes.
++
++Required Properties:
++- compatible: value should be "infineon,irs1125" for irs1125 sensor
++- reg: I2C bus address of the device
++- clocks: reference to the xclk input clock.
++- pwdn-gpios: reference to the GPIO connected to the reset pin.
++	      This is an active low signal to the iirs1125.
++
++The irs1125 device node should contain one 'port' child node with
++an 'endpoint' subnode. For further reading on port node refer to
++Documentation/devicetree/bindings/media/video-interfaces.txt.
++
++Endpoint node required properties for CSI-2 connection are:
++- remote-endpoint: a phandle to the bus receiver's endpoint node.
++- clock-lanes: should be set to <0> (clock lane on hardware lane 0)
++- data-lanes: should be set to <1> or <1 2> (one or two lane CSI-2
++  supported)
++
++Example:
++	sensor@10 {
++		compatible = "infineon,irs1125";
++		reg = <0x3D>;
++		#address-cells = <1>;
++		#size-cells = <0>;
++		clocks = <&irs1125_clk>;
++		pwdn-gpios = <&gpio 5 0>;
++
++		irs1125_clk: camera-clk {
++			compatible = "fixed-clock";
++			#clock-cells = <0>;
++			clock-frequency = <26000000>;
++		};
++
++		port {
++			sensor_out: endpoint {
++				remote-endpoint = <&csiss_in>;
++				clock-lanes = <0>;
++				data-lanes = <1 2>;
++			};
++		};
++	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0166-media-i2c-Add-a-driver-for-the-Infineon-IRS1125-dept.patch b/target/linux/bcm27xx/patches-5.10/950-0166-media-i2c-Add-a-driver-for-the-Infineon-IRS1125-dept.patch
new file mode 100644
index 0000000000..27507ff879
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0166-media-i2c-Add-a-driver-for-the-Infineon-IRS1125-dept.patch
@@ -0,0 +1,1231 @@
+From 21da9db2602925f6584936c167c8ce9b81ab2e0a Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Thu, 10 Oct 2019 19:12:36 +0200
+Subject: [PATCH] media: i2c: Add a driver for the Infineon IRS1125
+ depth sensor
+
+The Infineon IRS1125 is a time of flight depth sensor that
+has a CSI-2 interface.
+
+Add a V4L2 subdevice driver for this device.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ drivers/media/i2c/Kconfig   |   12 +
+ drivers/media/i2c/Makefile  |    1 +
+ drivers/media/i2c/irs1125.c | 1112 +++++++++++++++++++++++++++++++++++
+ drivers/media/i2c/irs1125.h |   61 ++
+ 4 files changed, 1186 insertions(+)
+ create mode 100644 drivers/media/i2c/irs1125.c
+ create mode 100644 drivers/media/i2c/irs1125.h
+
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -1060,6 +1060,18 @@ config VIDEO_OV13858
+ 	  This is a Video4Linux2 sensor driver for the OmniVision
+ 	  OV13858 camera.
+ 
++config VIDEO_IRS1125
++	tristate "Infineon IRS1125 sensor support"
++	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
++	depends on MEDIA_CAMERA_SUPPORT
++	select V4L2_FWNODE
++	help
++	  This is a Video4Linux2 sensor-level driver for the Infineon
++	  IRS1125 camera.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called irs1125.
++
+ config VIDEO_VS6624
+ 	tristate "ST VS6624 sensor support"
+ 	depends on VIDEO_V4L2 && I2C
+--- a/drivers/media/i2c/Makefile
++++ b/drivers/media/i2c/Makefile
+@@ -84,6 +84,7 @@ obj-$(CONFIG_VIDEO_OV8856) += ov8856.o
+ obj-$(CONFIG_VIDEO_OV9640) += ov9640.o
+ obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
+ obj-$(CONFIG_VIDEO_OV13858) += ov13858.o
++obj-$(CONFIG_VIDEO_IRS1125) += irs1125.o
+ obj-$(CONFIG_VIDEO_MT9M001) += mt9m001.o
+ obj-$(CONFIG_VIDEO_MT9M032) += mt9m032.o
+ obj-$(CONFIG_VIDEO_MT9M111) += mt9m111.o
+--- /dev/null
++++ b/drivers/media/i2c/irs1125.c
+@@ -0,0 +1,1112 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * A V4L2 driver for Infineon IRS1125 TOF cameras.
++ * Copyright (C) 2018, pieye GmbH
++ *
++ * Based on V4L2 OmniVision OV5647 Image Sensor driver
++ * Copyright (C) 2016 Ramiro Oliveira <roliveir@synopsys.com>
++ *
++ * DT / fwnode changes, and GPIO control taken from ov5640.c
++ * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.
++ * Copyright (C) 2014-2017 Mentor Graphics Inc.
++ *
++ */
++
++#include "irs1125.h"
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/gpio/consumer.h>
++#include <linux/i2c.h>
++#include <linux/init.h>
++#include <linux/io.h>
++#include <linux/module.h>
++#include <linux/of_graph.h>
++#include <linux/slab.h>
++#include <linux/videodev2.h>
++#include <linux/firmware.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-fwnode.h>
++#include <media/v4l2-image-sizes.h>
++#include <media/v4l2-mediabus.h>
++#include <media/v4l2-ctrls.h>
++
++#define CHECK_BIT(val, pos) ((val) & BIT(pos))
++
++#define SENSOR_NAME "irs1125"
++
++#define RESET_ACTIVE_DELAY_MS	 20
++
++#define IRS1125_ALTERNATE_FW "irs1125_af.bin"
++
++#define IRS1125_REG_CSICFG       0xA882
++#define IRS1125_REG_DESIGN_STEP	 0xB0AD
++#define IRS1125_REG_EFUSEVAL2	 0xB09F
++#define IRS1125_REG_EFUSEVAL3	 0xB0A0
++#define IRS1125_REG_EFUSEVAL4	 0xB0A1
++#define IRS1125_REG_DMEM_SHADOW	 0xC320
++
++#define IRS1125_DESIGN_STEP_EXPECTED 0x0a12
++
++#define IRS1125_ROW_START_DEF		0
++#define IRS1125_COLUMN_START_DEF	0
++#define IRS1125_WINDOW_HEIGHT_DEF	 288
++#define IRS1125_WINDOW_WIDTH_DEF	352
++
++struct regval_list {
++	u16 addr;
++	u16 data;
++};
++
++struct irs1125 {
++	struct v4l2_subdev sd;
++	struct media_pad pad;
++	/* the parsed DT endpoint info */
++	struct v4l2_fwnode_endpoint ep;
++
++	struct clk *xclk;
++	struct v4l2_ctrl_handler ctrl_handler;
++
++	/* To serialize asynchronus callbacks */
++	struct mutex lock;
++
++	/* image data layout */
++	unsigned int num_seq;
++
++	/* reset pin */
++	struct gpio_desc *reset;
++
++	/* V4l2 Controls to grab */
++	struct v4l2_ctrl *ctrl_modplls;
++	struct v4l2_ctrl *ctrl_numseq;
++
++	int power_count;
++};
++
++static inline struct irs1125 *to_state(struct v4l2_subdev *sd)
++{
++	return container_of(sd, struct irs1125, sd);
++}
++
++static struct regval_list irs1125_26MHz[] = {
++	{0xB017, 0x0413},
++	{0xB086, 0x3535},
++	{0xB0AE, 0xEF02},
++	{0xA000, 0x0004},
++	{0xFFFF, 100},
++
++	{0xB062, 0x6383},
++	{0xB063, 0x55A8},
++	{0xB068, 0x7628},
++	{0xB069, 0x03E2},
++
++	{0xFFFF, 100},
++	{0xB05A, 0x01C5},
++	{0xB05C, 0x0206},
++	{0xB05D, 0x01C5},
++	{0xB05F, 0x0206},
++	{0xB016, 0x1335},
++	{0xFFFF, 100},
++	{0xA893, 0x8261},
++	{0xA894, 0x89d8},
++	{0xA895, 0x131d},
++	{0xA896, 0x4251},
++	{0xA897, 0x9D8A},
++	{0xA898, 0x0BD8},
++	{0xA899, 0x2245},
++	{0xA89A, 0xAB9B},
++	{0xA89B, 0x03B9},
++	{0xA89C, 0x8041},
++	{0xA89D, 0xE07E},
++	{0xA89E, 0x0307},
++	{0xFFFF, 100},
++	{0xA88D, 0x0004},
++	{0xA800, 0x0E68},
++	{0xA801, 0x0000},
++	{0xA802, 0x000C},
++	{0xA803, 0x0000},
++	{0xA804, 0x0E68},
++	{0xA805, 0x0000},
++	{0xA806, 0x0440},
++	{0xA807, 0x0000},
++	{0xA808, 0x0E68},
++	{0xA809, 0x0000},
++	{0xA80A, 0x0884},
++	{0xA80B, 0x0000},
++	{0xA80C, 0x0E68},
++	{0xA80D, 0x0000},
++	{0xA80E, 0x0CC8},
++	{0xA80F, 0x0000},
++	{0xA810, 0x0E68},
++	{0xA811, 0x0000},
++	{0xA812, 0x2000},
++	{0xA813, 0x0000},
++	{0xA882, 0x0081},
++	{0xA88C, 0x403A},
++	{0xA88F, 0x031E},
++	{0xA892, 0x0351},
++	{0x9813, 0x13FF},
++	{0x981B, 0x7608},
++
++	{0xB008, 0x0000},
++	{0xB015, 0x1513},
++
++	{0xFFFF, 100}
++};
++
++static struct regval_list irs1125_seq_cfg[] = {
++	{0xC3A0, 0x823D},
++	{0xC3A1, 0xB13B},
++	{0xC3A2, 0x0313},
++	{0xC3A3, 0x4659},
++	{0xC3A4, 0xC4EC},
++	{0xC3A5, 0x03CE},
++	{0xC3A6, 0x4259},
++	{0xC3A7, 0xC4EC},
++	{0xC3A8, 0x03CE},
++	{0xC3A9, 0x8839},
++	{0xC3AA, 0x89D8},
++	{0xC3AB, 0x031D},
++
++	{0xC24C, 0x5529},
++	{0xC24D, 0x0000},
++	{0xC24E, 0x1200},
++	{0xC24F, 0x6CB2},
++	{0xC250, 0x0000},
++	{0xC251, 0x5529},
++	{0xC252, 0x42F4},
++	{0xC253, 0xD1AF},
++	{0xC254, 0x8A18},
++	{0xC255, 0x0002},
++	{0xC256, 0x5529},
++	{0xC257, 0x6276},
++	{0xC258, 0x11A7},
++	{0xC259, 0xD907},
++	{0xC25A, 0x0000},
++	{0xC25B, 0x5529},
++	{0xC25C, 0x07E0},
++	{0xC25D, 0x7BFE},
++	{0xC25E, 0x6402},
++	{0xC25F, 0x0019},
++
++	{0xC3AC, 0x0007},
++	{0xC3AD, 0xED88},
++	{0xC320, 0x003E},
++	{0xC321, 0x0000},
++	{0xC322, 0x2000},
++	{0xC323, 0x0000},
++	{0xC324, 0x0271},
++	{0xC325, 0x0000},
++	{0xC326, 0x000C},
++	{0xC327, 0x0000},
++	{0xC328, 0x0271},
++	{0xC329, 0x0000},
++	{0xC32A, 0x0440},
++	{0xC32B, 0x0000},
++	{0xC32C, 0x0271},
++	{0xC32D, 0x0000},
++	{0xC32E, 0x0884},
++	{0xC32F, 0x0000},
++	{0xC330, 0x0271},
++	{0xC331, 0x0000},
++	{0xC332, 0x0CC8},
++	{0xC333, 0x0000},
++	{0xA88D, 0x0004},
++
++	{0xA890, 0x0000},
++	{0xC219, 0x0002},
++	{0xC21A, 0x0000},
++	{0xC21B, 0x0000},
++	{0xC21C, 0x00CD},
++	{0xC21D, 0x0009},
++	{0xC21E, 0x00CD},
++	{0xC21F, 0x0009},
++
++	{0xA87C, 0x0000},
++	{0xC032, 0x0001},
++	{0xC034, 0x0000},
++	{0xC035, 0x0001},
++	{0xC039, 0x0000},
++	{0xC401, 0x0002},
++
++	{0xFFFF, 1},
++	{0xA87C, 0x0001}
++};
++
++static int irs1125_write(struct v4l2_subdev *sd, u16 reg, u16 val)
++{
++	int ret;
++	unsigned char data[4] = { reg >> 8, reg & 0xff, val >> 8, val & 0xff};
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	ret = i2c_master_send(client, data, 4);
++	if (ret < 0)
++		dev_err(&client->dev, "%s: i2c write error, reg: %x\n",
++			__func__, reg);
++
++	return ret;
++}
++
++static int irs1125_read(struct v4l2_subdev *sd, u16 reg, u16 *val)
++{
++	int ret;
++	unsigned char data_w[2] = { reg >> 8, reg & 0xff };
++	char rdval[2];
++
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	ret = i2c_master_send(client, data_w, 2);
++	if (ret < 0) {
++		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
++			__func__, reg);
++		return ret;
++	}
++
++	ret = i2c_master_recv(client, rdval, 2);
++	if (ret < 0)
++		dev_err(&client->dev, "%s: i2c read error, reg: %x\n",
++			__func__, reg);
++
++	*val = rdval[1] | (rdval[0] << 8);
++
++	return ret;
++}
++
++static int irs1125_write_array(struct v4l2_subdev *sd,
++			       struct regval_list *regs, int array_size)
++{
++	int i, ret;
++
++	for (i = 0; i < array_size; i++) {
++		if (regs[i].addr == 0xFFFF) {
++			msleep(regs[i].data);
++		} else {
++			ret = irs1125_write(sd, regs[i].addr, regs[i].data);
++			if (ret < 0)
++				return ret;
++		}
++	}
++
++	return 0;
++}
++
++static int irs1125_stream_on(struct v4l2_subdev *sd)
++{
++	int ret;
++	struct irs1125 *irs1125 = to_state(sd);
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	v4l2_ctrl_grab(irs1125->ctrl_numseq, 1);
++	v4l2_ctrl_grab(irs1125->ctrl_modplls, 1);
++
++	ret = irs1125_write(sd, 0xC400, 0x0001);
++	if (ret < 0) {
++		dev_err(&client->dev, "error enabling firmware: %d", ret);
++		return ret;
++	}
++
++	msleep(100);
++
++	return irs1125_write(sd, 0xA87C, 0x0001);
++}
++
++static int irs1125_stream_off(struct v4l2_subdev *sd)
++{
++	int ret;
++	struct irs1125 *irs1125 = to_state(sd);
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	v4l2_ctrl_grab(irs1125->ctrl_numseq, 0);
++	v4l2_ctrl_grab(irs1125->ctrl_modplls, 0);
++
++	ret = irs1125_write(sd, 0xA87C, 0x0000);
++	if (ret < 0) {
++		dev_err(&client->dev, "error disabling trigger: %d", ret);
++		return ret;
++	}
++
++	msleep(100);
++
++	return irs1125_write(sd, 0xC400, 0x0002);
++}
++
++static int __sensor_init(struct v4l2_subdev *sd)
++{
++	unsigned int cnt, idx;
++	int ret;
++	u16 val;
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++	struct irs1125 *irs1125 = to_state(sd);
++	const struct firmware *fw;
++	struct regval_list *reg_data;
++
++	cnt = 0;
++	while (1) {
++		ret = irs1125_read(sd, 0xC40F, &val);
++		if (ret < 0) {
++			dev_err(&client->dev, "read register 0xC40F failed\n");
++			return ret;
++		}
++		if (CHECK_BIT(val, 14) == 0)
++			break;
++
++		if (cnt >= 5) {
++			dev_err(&client->dev, "timeout waiting for 0xC40F\n");
++			return -EAGAIN;
++		}
++
++		cnt++;
++	}
++
++	ret = irs1125_write_array(sd, irs1125_26MHz,
++				  ARRAY_SIZE(irs1125_26MHz));
++	if (ret < 0) {
++		dev_err(&client->dev, "write sensor default regs error\n");
++		return ret;
++	}
++
++	/* set CSI-2 number of data lanes */
++	if (irs1125->ep.bus.mipi_csi2.num_data_lanes == 1) {
++		val = 0x0001;
++	} else if (irs1125->ep.bus.mipi_csi2.num_data_lanes == 2) {
++		val = 0x0081;
++	} else {
++		dev_err(&client->dev, "invalid number of data lanes %d\n",
++			irs1125->ep.bus.mipi_csi2.num_data_lanes);
++		return -EINVAL;
++	}
++
++	ret = irs1125_write(sd, IRS1125_REG_CSICFG, val);
++	if (ret < 0) {
++		dev_err(&client->dev, "write sensor csi2 config error\n");
++		return ret;
++	}
++
++	/* request the firmware, this will block and timeout */
++	ret = request_firmware(&fw, IRS1125_ALTERNATE_FW, &client->dev);
++	if (ret) {
++		dev_err(&client->dev,
++			"did not find the firmware file '%s' (status %d)\n",
++			IRS1125_ALTERNATE_FW, ret);
++		return ret;
++	}
++
++	if (fw->size % 4) {
++		dev_err(&client->dev, "firmware file '%s' invalid\n",
++			IRS1125_ALTERNATE_FW);
++		release_firmware(fw);
++		return -EINVAL;
++	}
++
++	for (idx = 0; idx < fw->size; idx += 4)	{
++		reg_data = (struct regval_list *)&fw->data[idx];
++		ret = irs1125_write(sd, reg_data->addr, reg_data->data);
++		if (ret < 0) {
++			dev_err(&client->dev, "firmware write error\n");
++			release_firmware(fw);
++			return ret;
++		}
++	}
++	release_firmware(fw);
++
++	ret = irs1125_write_array(sd, irs1125_seq_cfg,
++				  ARRAY_SIZE(irs1125_seq_cfg));
++	if (ret < 0) {
++		dev_err(&client->dev, "write default sequence failed\n");
++		return ret;
++	}
++
++	return 0;
++}
++
++static int irs1125_sensor_power(struct v4l2_subdev *sd, int on)
++{
++	int ret = 0;
++	struct irs1125 *irs1125 = to_state(sd);
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	mutex_lock(&irs1125->lock);
++
++	if (on && !irs1125->power_count) {
++		gpiod_set_value_cansleep(irs1125->reset, 1);
++		msleep(RESET_ACTIVE_DELAY_MS);
++
++		ret = clk_prepare_enable(irs1125->xclk);
++		if (ret < 0) {
++			dev_err(&client->dev, "clk prepare enable failed\n");
++			goto out;
++		}
++
++		ret = __sensor_init(sd);
++		if (ret < 0) {
++			clk_disable_unprepare(irs1125->xclk);
++			dev_err(&client->dev,
++				"Camera not available, check Power\n");
++			goto out;
++		}
++	} else if (!on && irs1125->power_count == 1) {
++		gpiod_set_value_cansleep(irs1125->reset, 0);
++	}
++
++	/* Update the power count. */
++	irs1125->power_count += on ? 1 : -1;
++	WARN_ON(irs1125->power_count < 0);
++
++out:
++	mutex_unlock(&irs1125->lock);
++
++	return ret;
++}
++
++#ifdef CONFIG_VIDEO_ADV_DEBUG
++static int irs1125_sensor_get_register(struct v4l2_subdev *sd,
++				       struct v4l2_dbg_register *reg)
++{
++	u16 val;
++	int ret;
++
++	ret = irs1125_read(sd, reg->reg & 0xffff, &val);
++	if (ret < 0)
++		return ret;
++
++	reg->val = val;
++	reg->size = 1;
++
++	return 0;
++}
++
++static int irs1125_sensor_set_register(struct v4l2_subdev *sd,
++				       const struct v4l2_dbg_register *reg)
++{
++	return irs1125_write(sd, reg->reg & 0xffff, reg->val & 0xffff);
++}
++#endif
++
++static const struct v4l2_subdev_core_ops irs1125_subdev_core_ops = {
++	.s_power = irs1125_sensor_power,
++#ifdef CONFIG_VIDEO_ADV_DEBUG
++	.g_register = irs1125_sensor_get_register,
++	.s_register = irs1125_sensor_set_register,
++#endif
++};
++
++static int irs1125_s_stream(struct v4l2_subdev *sd, int enable)
++{
++	if (enable)
++		return irs1125_stream_on(sd);
++	else
++		return irs1125_stream_off(sd);
++}
++
++static const struct v4l2_subdev_video_ops irs1125_subdev_video_ops = {
++	.s_stream = irs1125_s_stream,
++};
++
++static int irs1125_enum_mbus_code(struct v4l2_subdev *sd,
++				  struct v4l2_subdev_pad_config *cfg,
++	struct v4l2_subdev_mbus_code_enum *code)
++{
++	if (code->index > 0)
++		return -EINVAL;
++
++	code->code = MEDIA_BUS_FMT_Y12_1X12;
++
++	return 0;
++}
++
++static int irs1125_set_get_fmt(struct v4l2_subdev *sd,
++			       struct v4l2_subdev_pad_config *cfg,
++			       struct v4l2_subdev_format *format)
++{
++	struct v4l2_mbus_framefmt *fmt = &format->format;
++	struct irs1125 *irs1125 = to_state(sd);
++
++	if (format->pad != 0)
++		return -EINVAL;
++
++	/* Only one format is supported, so return that */
++	memset(fmt, 0, sizeof(*fmt));
++	fmt->code = MEDIA_BUS_FMT_Y12_1X12;
++	fmt->colorspace = V4L2_COLORSPACE_RAW;
++	fmt->field = V4L2_FIELD_NONE;
++	fmt->width = IRS1125_WINDOW_WIDTH_DEF;
++	fmt->height = IRS1125_WINDOW_HEIGHT_DEF * irs1125->num_seq;
++
++	return 0;
++}
++
++static const struct v4l2_subdev_pad_ops irs1125_subdev_pad_ops = {
++	.enum_mbus_code = irs1125_enum_mbus_code,
++	.set_fmt = irs1125_set_get_fmt,
++	.get_fmt = irs1125_set_get_fmt,
++};
++
++static const struct v4l2_subdev_ops irs1125_subdev_ops = {
++	.core = &irs1125_subdev_core_ops,
++	.video = &irs1125_subdev_video_ops,
++	.pad = &irs1125_subdev_pad_ops,
++};
++
++static int irs1125_s_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct irs1125 *dev = container_of(ctrl->handler,
++					struct irs1125, ctrl_handler);
++	struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
++	int err, i;
++	struct irs1125_mod_pll *mod_cur, *mod_new;
++	struct irs1125_seq_cfg *cfg_cur, *cfg_new;
++	u16 addr, val;
++
++	err = 0;
++
++	switch (ctrl->id) {
++	case IRS1125_CID_SAFE_RECONFIG:
++	{
++		struct irs1125_illu *illu_cur, *illu_new;
++
++		illu_new = (struct irs1125_illu *)ctrl->p_new.p;
++		illu_cur = (struct irs1125_illu *)ctrl->p_cur.p;
++		for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
++			if (illu_cur[i].exposure != illu_new[i].exposure) {
++				addr = 0xA850 + i * 2;
++				val = illu_new[i].exposure;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (illu_cur[i].framerate != illu_new[i].framerate) {
++				addr = 0xA851 + i * 2;
++				val = illu_new[i].framerate;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++		}
++		break;
++	}
++	case IRS1125_CID_MOD_PLL:
++		mod_new = (struct irs1125_mod_pll *)ctrl->p_new.p;
++		mod_cur = (struct irs1125_mod_pll *)ctrl->p_cur.p;
++		for (i = 0; i < IRS1125_NUM_MOD_PLLS; i++) {
++			if (mod_cur[i].pllcfg1 != mod_new[i].pllcfg1) {
++				addr = 0xC3A0 + i * 3;
++				val = mod_new[i].pllcfg1;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg2 != mod_new[i].pllcfg2) {
++				addr = 0xC3A1 + i * 3;
++				val = mod_new[i].pllcfg2;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg3 != mod_new[i].pllcfg3) {
++				addr = 0xC3A2 + i * 3;
++				val = mod_new[i].pllcfg3;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg4 != mod_new[i].pllcfg4) {
++				addr = 0xC24C + i * 5;
++				val = mod_new[i].pllcfg4;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg5 != mod_new[i].pllcfg5) {
++				addr = 0xC24D + i * 5;
++				val = mod_new[i].pllcfg5;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg6 != mod_new[i].pllcfg6) {
++				addr = 0xC24E + i * 5;
++				val = mod_new[i].pllcfg6;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg7 != mod_new[i].pllcfg7) {
++				addr = 0xC24F + i * 5;
++				val = mod_new[i].pllcfg7;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (mod_cur[i].pllcfg8 != mod_new[i].pllcfg8) {
++				addr = 0xC250 + i * 5;
++				val = mod_new[i].pllcfg8;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++		}
++		break;
++	case IRS1125_CID_SEQ_CONFIG:
++		cfg_new = (struct irs1125_seq_cfg *)ctrl->p_new.p;
++		cfg_cur = (struct irs1125_seq_cfg *)ctrl->p_cur.p;
++		for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
++			if (cfg_cur[i].exposure != cfg_new[i].exposure)	{
++				addr = IRS1125_REG_DMEM_SHADOW + i * 4;
++				val = cfg_new[i].exposure;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (cfg_cur[i].framerate != cfg_new[i].framerate) {
++				addr = IRS1125_REG_DMEM_SHADOW + 1 + i * 4;
++				val = cfg_new[i].framerate;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (cfg_cur[i].ps != cfg_new[i].ps) {
++				addr = IRS1125_REG_DMEM_SHADOW + 2 + i * 4;
++				val = cfg_new[i].ps;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++			if (cfg_cur[i].pll != cfg_new[i].pll) {
++				addr = IRS1125_REG_DMEM_SHADOW + 3 + i * 4;
++				val = cfg_new[i].pll;
++				err = irs1125_write(&dev->sd, addr, val);
++				if (err < 0)
++					break;
++			}
++		}
++		break;
++	case IRS1125_CID_NUM_SEQS:
++		err = irs1125_write(&dev->sd, 0xA88D, ctrl->val - 1);
++		if (err >= 0)
++			dev->num_seq = ctrl->val;
++		break;
++	case IRS1125_CID_CONTINUOUS_TRIG:
++		if (ctrl->val == 0)
++			err = irs1125_write(&dev->sd, 0xA87C, 0);
++		else
++			err = irs1125_write(&dev->sd, 0xA87C, 1);
++		break;
++	case IRS1125_CID_TRIGGER:
++		if (ctrl->val != 0) {
++			err = irs1125_write(&dev->sd, 0xA87C, 1);
++			if (err >= 0)
++				err = irs1125_write(&dev->sd, 0xA87C, 0);
++		}
++		break;
++	case IRS1125_CID_RECONFIG:
++		if (ctrl->val != 0)
++			err = irs1125_write(&dev->sd, 0xA87A, 1);
++		break;
++	case IRS1125_CID_ILLU_ON:
++		if (ctrl->val == 0)
++			err = irs1125_write(&dev->sd, 0xA892, 0x377);
++		else
++			err = irs1125_write(&dev->sd, 0xA892, 0x355);
++		break;
++	default:
++		break;
++	}
++
++	if (err < 0)
++		dev_err(&client->dev, "Error executing control ID: %d, val %d, err %d",
++			ctrl->id, ctrl->val, err);
++	else
++		err = 0;
++
++	return err;
++}
++
++static const struct v4l2_ctrl_ops irs1125_ctrl_ops = {
++	.s_ctrl = irs1125_s_ctrl,
++};
++
++static const struct v4l2_ctrl_config irs1125_custom_ctrls[] = {
++	{
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_NUM_SEQS,
++		.name = "Change number of sequences",
++		.type = V4L2_CTRL_TYPE_INTEGER,
++		.flags = V4L2_CTRL_FLAG_MODIFY_LAYOUT,
++		.min = 1,
++		.max = 20,
++		.step = 1,
++		.def = 5,
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_MOD_PLL,
++		.name = "Reconfigure modulation PLLs",
++		.type = V4L2_CTRL_TYPE_U16,
++		.flags = V4L2_CTRL_FLAG_HAS_PAYLOAD,
++		.min = 0,
++		.max = U16_MAX,
++		.step = 1,
++		.def = 0,
++		.elem_size = sizeof(u16),
++		.dims = {sizeof(struct irs1125_mod_pll) / sizeof(u16),
++			IRS1125_NUM_MOD_PLLS}
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_SAFE_RECONFIG,
++		.name = "Change exposure and pause of single seq",
++		.type = V4L2_CTRL_TYPE_U16,
++		.flags = V4L2_CTRL_FLAG_HAS_PAYLOAD,
++		.min = 0,
++		.max = U16_MAX,
++		.step = 1,
++		.def = 0,
++		.elem_size = sizeof(u16),
++		.dims = {sizeof(struct irs1125_illu) / sizeof(u16),
++			IRS1125_NUM_SEQ_ENTRIES}
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_SEQ_CONFIG,
++		.name = "Change sequence settings",
++		.type = V4L2_CTRL_TYPE_U16,
++		.flags = V4L2_CTRL_FLAG_HAS_PAYLOAD,
++		.min = 0,
++		.max = U16_MAX,
++		.step = 1,
++		.def = 0,
++		.elem_size = sizeof(u16),
++		.dims = {sizeof(struct irs1125_seq_cfg) / sizeof(u16),
++			IRS1125_NUM_SEQ_ENTRIES}
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_CONTINUOUS_TRIG,
++		.name = "Enable/disable continuous trigger",
++		.type = V4L2_CTRL_TYPE_BOOLEAN,
++		.flags = V4L2_CTRL_FLAG_EXECUTE_ON_WRITE,
++		.min = 0,
++		.max = 1,
++		.step = 1,
++		.def = 0
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_TRIGGER,
++		.name = "Capture a single sequence",
++		.type = V4L2_CTRL_TYPE_BOOLEAN,
++		.flags = V4L2_CTRL_FLAG_EXECUTE_ON_WRITE,
++		.min = 0,
++		.max = 1,
++		.step = 1,
++		.def = 0
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_RECONFIG,
++		.name = "Trigger imager reconfiguration",
++		.type = V4L2_CTRL_TYPE_BOOLEAN,
++		.flags = V4L2_CTRL_FLAG_EXECUTE_ON_WRITE,
++		.min = 0,
++		.max = 1,
++		.step = 1,
++		.def = 0
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_ILLU_ON,
++		.name = "Turn illu on or off",
++		.type = V4L2_CTRL_TYPE_BOOLEAN,
++		.flags = V4L2_CTRL_FLAG_EXECUTE_ON_WRITE,
++		.min = 0,
++		.max = 1,
++		.step = 1,
++		.def = 1
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_IDENT0,
++		.name = "Get ident 0 information",
++		.type = V4L2_CTRL_TYPE_INTEGER,
++		.flags = V4L2_CTRL_FLAG_READ_ONLY,
++		.min = S32_MIN,
++		.max = S32_MAX,
++		.step = 1,
++		.def = 0
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_IDENT1,
++		.name = "Get ident 1 information",
++		.type = V4L2_CTRL_TYPE_INTEGER,
++		.flags = V4L2_CTRL_FLAG_READ_ONLY,
++		.min = S32_MIN,
++		.max = S32_MAX,
++		.step = 1,
++		.def = 0
++	}, {
++		.ops = &irs1125_ctrl_ops,
++		.id = IRS1125_CID_IDENT2,
++		.name = "Get ident 2 information",
++		.type = V4L2_CTRL_TYPE_INTEGER,
++		.flags = V4L2_CTRL_FLAG_READ_ONLY,
++		.min = S32_MIN,
++		.max = S32_MAX,
++		.step = 1,
++		.def = 0
++	}
++};
++
++static int irs1125_detect(struct v4l2_subdev *sd)
++{
++	u16 read;
++	int ret;
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	ret = irs1125_read(sd, IRS1125_REG_DESIGN_STEP, &read);
++	if (ret < 0) {
++		dev_err(&client->dev, "error reading from i2c\n");
++		return ret;
++	}
++
++	if (read != IRS1125_DESIGN_STEP_EXPECTED) {
++		dev_err(&client->dev, "Design step expected 0x%x got 0x%x",
++			IRS1125_DESIGN_STEP_EXPECTED, read);
++		return -ENODEV;
++	}
++
++	return 0;
++}
++
++static int irs1125_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
++{
++	struct v4l2_mbus_framefmt *format =
++	v4l2_subdev_get_try_format(sd, fh->pad, 0);
++
++	format->code = MEDIA_BUS_FMT_Y12_1X12;
++	format->width = IRS1125_WINDOW_WIDTH_DEF;
++	format->height = IRS1125_WINDOW_HEIGHT_DEF;
++	format->field = V4L2_FIELD_NONE;
++	format->colorspace = V4L2_COLORSPACE_RAW;
++
++	return 0;
++}
++
++static const struct v4l2_subdev_internal_ops irs1125_subdev_internal_ops = {
++	.open = irs1125_open,
++};
++
++static int irs1125_ctrls_init(struct irs1125 *sensor, struct device *dev)
++{
++	struct v4l2_ctrl *ctrl;
++	int err, i;
++	struct v4l2_ctrl_handler *hdl;
++
++	hdl = &sensor->ctrl_handler;
++	v4l2_ctrl_handler_init(hdl, ARRAY_SIZE(irs1125_custom_ctrls));
++
++	for (i = 0; i < ARRAY_SIZE(irs1125_custom_ctrls); i++)	{
++		ctrl = v4l2_ctrl_new_custom(hdl, &irs1125_custom_ctrls[i],
++					    NULL);
++		if (!ctrl)
++			dev_err(dev, "Failed to init custom control %s\n",
++				irs1125_custom_ctrls[i].name);
++		else if (irs1125_custom_ctrls[i].id == IRS1125_CID_NUM_SEQS)
++			sensor->ctrl_numseq = ctrl;
++		else if (irs1125_custom_ctrls[i].id == IRS1125_CID_MOD_PLL)
++			sensor->ctrl_modplls = ctrl;
++	}
++
++	if (hdl->error)	{
++		dev_err(dev, "Error %d adding controls\n", hdl->error);
++		err = hdl->error;
++		goto error_ctrls;
++	}
++
++	sensor->sd.ctrl_handler = hdl;
++	return 0;
++
++error_ctrls:
++	v4l2_ctrl_handler_free(&sensor->ctrl_handler);
++	return -err;
++}
++
++static int irs1125_ident_setup(struct irs1125 *sensor, struct device *dev)
++{
++	int ret;
++	struct v4l2_ctrl *ctrl;
++	struct v4l2_subdev *sd;
++	u16 read;
++
++	sd = &sensor->sd;
++
++	ctrl = v4l2_ctrl_find(&sensor->ctrl_handler, IRS1125_CID_IDENT0);
++	if (!ctrl) {
++		dev_err(dev, "could not find device ctrl.\n");
++		return -EINVAL;
++	}
++
++	ret = irs1125_read(sd, IRS1125_REG_EFUSEVAL2, &read);
++	if (ret < 0) {
++		dev_err(dev, "error reading from i2c\n");
++		return -EIO;
++	}
++
++	v4l2_ctrl_s_ctrl(ctrl, read);
++
++	ctrl = v4l2_ctrl_find(&sensor->ctrl_handler, IRS1125_CID_IDENT1);
++	if (!ctrl) {
++		dev_err(dev, "could not find device ctrl.\n");
++		return -EINVAL;
++	}
++
++	ret = irs1125_read(sd, IRS1125_REG_EFUSEVAL3, &read);
++	if (ret < 0) {
++		dev_err(dev, "error reading from i2c\n");
++		return -EIO;
++	}
++
++	v4l2_ctrl_s_ctrl(ctrl, read);
++
++	ctrl = v4l2_ctrl_find(&sensor->ctrl_handler, IRS1125_CID_IDENT2);
++	if (!ctrl) {
++		dev_err(dev, "could not find device ctrl.\n");
++		return -EINVAL;
++	}
++
++	ret = irs1125_read(sd, IRS1125_REG_EFUSEVAL4, &read);
++	if (ret < 0) {
++		dev_err(dev, "error reading from i2c\n");
++		return -EIO;
++	}
++	v4l2_ctrl_s_ctrl(ctrl, read & 0xFFFC);
++
++	return 0;
++}
++
++static int irs1125_probe(struct i2c_client *client,
++			 const struct i2c_device_id *id)
++{
++	struct device *dev = &client->dev;
++	struct irs1125 *sensor;
++	int ret;
++	struct fwnode_handle *endpoint;
++	u32 xclk_freq;
++	int gpio_num;
++
++	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
++	if (!sensor)
++		return -ENOMEM;
++
++	v4l2_i2c_subdev_init(&sensor->sd, client, &irs1125_subdev_ops);
++
++	/* Get CSI2 bus config */
++	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev),
++						  NULL);
++	if (!endpoint) {
++		dev_err(dev, "endpoint node not found\n");
++		return -EINVAL;
++	}
++
++	ret = v4l2_fwnode_endpoint_parse(endpoint, &sensor->ep);
++	fwnode_handle_put(endpoint);
++	if (ret) {
++		dev_err(dev, "Could not parse endpoint\n");
++		return ret;
++	}
++
++	/* get system clock (xclk) */
++	sensor->xclk = devm_clk_get(dev, NULL);
++	if (IS_ERR(sensor->xclk)) {
++		dev_err(dev, "could not get xclk");
++		return PTR_ERR(sensor->xclk);
++	}
++
++	xclk_freq = clk_get_rate(sensor->xclk);
++	if (xclk_freq != 26000000) {
++		dev_err(dev, "Unsupported clock frequency: %u\n", xclk_freq);
++		return -EINVAL;
++	}
++
++	sensor->num_seq = 5;
++
++	/* Request the power down GPIO */
++	sensor->reset = devm_gpiod_get(&client->dev, "pwdn",
++				       GPIOD_OUT_LOW);
++
++	if (IS_ERR(sensor->reset)) {
++		dev_err(dev, "could not get reset");
++		return PTR_ERR(sensor->reset);
++	}
++
++	gpio_num = desc_to_gpio(sensor->reset);
++
++	mutex_init(&sensor->lock);
++
++	ret = irs1125_ctrls_init(sensor, dev);
++	if (ret < 0)
++		goto mutex_remove;
++
++	sensor->sd.internal_ops = &irs1125_subdev_internal_ops;
++	sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++	sensor->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
++	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
++	ret = media_entity_pads_init(&sensor->sd.entity, 1, &sensor->pad);
++	if (ret < 0)
++		goto mutex_remove;
++
++	gpiod_set_value_cansleep(sensor->reset, 1);
++	msleep(RESET_ACTIVE_DELAY_MS);
++
++	ret = irs1125_detect(&sensor->sd);
++	if (ret < 0)
++		goto error;
++
++	ret = irs1125_ident_setup(sensor, dev);
++	if (ret < 0)
++		goto error;
++
++	gpiod_set_value_cansleep(sensor->reset, 0);
++
++	ret = v4l2_async_register_subdev(&sensor->sd);
++	if (ret < 0)
++		goto error;
++
++	dev_dbg(dev, "Infineon IRS1125 camera driver probed\n");
++
++	return 0;
++
++error:
++	media_entity_cleanup(&sensor->sd.entity);
++mutex_remove:
++	mutex_destroy(&sensor->lock);
++	return ret;
++}
++
++static int irs1125_remove(struct i2c_client *client)
++{
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct irs1125 *irs1125 = to_state(sd);
++
++	v4l2_async_unregister_subdev(&irs1125->sd);
++	media_entity_cleanup(&irs1125->sd.entity);
++	v4l2_device_unregister_subdev(sd);
++	mutex_destroy(&irs1125->lock);
++	v4l2_ctrl_handler_free(&irs1125->ctrl_handler);
++
++	return 0;
++}
++
++#if IS_ENABLED(CONFIG_OF)
++static const struct of_device_id irs1125_of_match[] = {
++	{ .compatible = "infineon,irs1125" },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, irs1125_of_match);
++#endif
++
++static struct i2c_driver irs1125_driver = {
++	.driver = {
++		.of_match_table = of_match_ptr(irs1125_of_match),
++		.name	 = SENSOR_NAME,
++	},
++	.probe		= irs1125_probe,
++	.remove		= irs1125_remove,
++};
++
++module_i2c_driver(irs1125_driver);
++
++MODULE_AUTHOR("Markus Proeller <markus.proeller@pieye.org>");
++MODULE_DESCRIPTION("Infineon irs1125 sensor driver");
++MODULE_LICENSE("GPL v2");
++
+--- /dev/null
++++ b/drivers/media/i2c/irs1125.h
+@@ -0,0 +1,61 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * A V4L2 driver for Infineon IRS1125 TOF cameras.
++ * Copyright (C) 2018, pieye GmbH
++ *
++ * Based on V4L2 OmniVision OV5647 Image Sensor driver
++ * Copyright (C) 2016 Ramiro Oliveira <roliveir@synopsys.com>
++ *
++ * DT / fwnode changes, and GPIO control taken from ov5640.c
++ * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.
++ * Copyright (C) 2014-2017 Mentor Graphics Inc.
++ *
++ */
++
++#ifndef IRS1125_H
++#define IRS1125_H
++
++#include <linux/v4l2-controls.h>
++#include <linux/types.h>
++
++#define IRS1125_NUM_SEQ_ENTRIES 20
++#define IRS1125_NUM_MOD_PLLS 4
++
++#define IRS1125_CID_CUSTOM_BASE        (V4L2_CID_USER_BASE | 0xf000)
++#define IRS1125_CID_SAFE_RECONFIG      (IRS1125_CID_CUSTOM_BASE + 0)
++#define IRS1125_CID_CONTINUOUS_TRIG    (IRS1125_CID_CUSTOM_BASE + 1)
++#define IRS1125_CID_TRIGGER            (IRS1125_CID_CUSTOM_BASE + 2)
++#define IRS1125_CID_RECONFIG           (IRS1125_CID_CUSTOM_BASE + 3)
++#define IRS1125_CID_ILLU_ON            (IRS1125_CID_CUSTOM_BASE + 4)
++#define IRS1125_CID_NUM_SEQS           (IRS1125_CID_CUSTOM_BASE + 5)
++#define IRS1125_CID_MOD_PLL            (IRS1125_CID_CUSTOM_BASE + 6)
++#define IRS1125_CID_SEQ_CONFIG         (IRS1125_CID_CUSTOM_BASE + 7)
++#define IRS1125_CID_IDENT0             (IRS1125_CID_CUSTOM_BASE + 8)
++#define IRS1125_CID_IDENT1             (IRS1125_CID_CUSTOM_BASE + 9)
++#define IRS1125_CID_IDENT2             (IRS1125_CID_CUSTOM_BASE + 10)
++
++struct irs1125_seq_cfg {
++	__u16 exposure;
++	__u16 framerate;
++	__u16 ps;
++	__u16 pll;
++};
++
++struct irs1125_illu {
++	__u16 exposure;
++	__u16 framerate;
++};
++
++struct irs1125_mod_pll {
++	__u16 pllcfg1;
++	__u16 pllcfg2;
++	__u16 pllcfg3;
++	__u16 pllcfg4;
++	__u16 pllcfg5;
++	__u16 pllcfg6;
++	__u16 pllcfg7;
++	__u16 pllcfg8;
++};
++
++#endif /* IRS1125 */
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0167-drm-v3d-Don-t-clear-MMU-control-bits-on-exception.patch b/target/linux/bcm27xx/patches-5.10/950-0167-drm-v3d-Don-t-clear-MMU-control-bits-on-exception.patch
new file mode 100644
index 0000000000..19bb22080f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0167-drm-v3d-Don-t-clear-MMU-control-bits-on-exception.patch
@@ -0,0 +1,34 @@
+From 7372f1f8c151f752aa533eaf2b85ad9b21ec9639 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 11 Nov 2019 14:01:41 +0000
+Subject: [PATCH] drm/v3d: Don't clear MMU control bits on exception
+
+MMU exception conditions are reported in the V3D_MMU_CTRL register as
+write-1-to-clear (W1C) bits. The MMU interrupt handling code clears any
+exceptions, but does so by masking out any other bits and writing the
+result back. There are some important control bits in that register,
+including MMU_ENABLE, so a safer approach is to simply write back the
+value just read unaltered.
+
+This patch doesn't remove the cause of the apparent PTE errors, but it
+does reduce the impact to just an error in the kernel log.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_irq.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_irq.c
++++ b/drivers/gpu/drm/v3d/v3d_irq.c
+@@ -178,10 +178,7 @@ v3d_hub_irq(int irq, void *arg)
+ 		};
+ 		const char *client = "?";
+ 
+-		V3D_WRITE(V3D_MMU_CTL,
+-			  V3D_READ(V3D_MMU_CTL) & (V3D_MMU_CTL_CAP_EXCEEDED |
+-						   V3D_MMU_CTL_PT_INVALID |
+-						   V3D_MMU_CTL_WRITE_VIOLATION));
++		V3D_WRITE(V3D_MMU_CTL, V3D_READ(V3D_MMU_CTL));
+ 
+ 		if (v3d->ver >= 41) {
+ 			axi_id = axi_id >> 5;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0168-drm-v3d-Suppress-all-but-the-first-MMU-error.patch b/target/linux/bcm27xx/patches-5.10/950-0168-drm-v3d-Suppress-all-but-the-first-MMU-error.patch
new file mode 100644
index 0000000000..94647bc7da
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0168-drm-v3d-Suppress-all-but-the-first-MMU-error.patch
@@ -0,0 +1,39 @@
+From e5d63db582ac8f702e6647c47e118c7e1b2412a3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 11 Nov 2019 20:18:08 +0000
+Subject: [PATCH] drm/v3d: Suppress all but the first MMU error
+
+The v3d driver currently encounters a lot of MMU PTE exceptions, so
+only log the first to avoid swamping the kernel log.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_irq.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_irq.c
++++ b/drivers/gpu/drm/v3d/v3d_irq.c
+@@ -177,6 +177,7 @@ v3d_hub_irq(int irq, void *arg)
+ 			"GMP",
+ 		};
+ 		const char *client = "?";
++		static int logged_error;
+ 
+ 		V3D_WRITE(V3D_MMU_CTL, V3D_READ(V3D_MMU_CTL));
+ 
+@@ -186,6 +187,7 @@ v3d_hub_irq(int irq, void *arg)
+ 				client = v3d41_axi_ids[axi_id];
+ 		}
+ 
++		if (!logged_error)
+ 		dev_err(v3d->drm.dev, "MMU error from client %s (%d) at 0x%llx%s%s%s\n",
+ 			client, axi_id, (long long)vio_addr,
+ 			((intsts & V3D_HUB_INT_MMU_WRV) ?
+@@ -194,6 +196,7 @@ v3d_hub_irq(int irq, void *arg)
+ 			 ", pte invalid" : ""),
+ 			((intsts & V3D_HUB_INT_MMU_CAP) ?
+ 			 ", cap exceeded" : ""));
++		logged_error = 1;
+ 		status = IRQ_HANDLED;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0169-drm-v3d-Plug-dma_fence-leak.patch b/target/linux/bcm27xx/patches-5.10/950-0169-drm-v3d-Plug-dma_fence-leak.patch
new file mode 100644
index 0000000000..b96ecc2238
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0169-drm-v3d-Plug-dma_fence-leak.patch
@@ -0,0 +1,28 @@
+From 6ae6a3a41d658321aee47577d88cbbbef3ea6b78 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 12 Nov 2019 16:41:21 +0000
+Subject: [PATCH] drm/v3d: Plug dma_fence leak
+
+The irq_fence and done_fence are given a reference that is never
+released. The necessary dma_fence_put()s seem to have been
+deleted in error in an earlier commit.
+
+Fixes: 0b73676836b2 ("drm/v3d: Clock V3D down when not in use.")
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_gem.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -410,6 +410,9 @@ v3d_job_free(struct kref *ref)
+ 	}
+ 	xa_destroy(&job->deps);
+ 
++	dma_fence_put(job->irq_fence);
++	dma_fence_put(job->done_fence);
++
+ 	v3d_clock_up_put(v3d);
+ 
+ 	kfree(job);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0170-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch b/target/linux/bcm27xx/patches-5.10/950-0170-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch
new file mode 100644
index 0000000000..76e81fda43
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0170-staging-vchiq_arm-Register-vcsm-cma-as-a-platform-dr.patch
@@ -0,0 +1,40 @@
+From 9999a14d45012bce466bd52449c3dcbeb1736367 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 Nov 2019 13:57:48 +0000
+Subject: [PATCH] staging: vchiq_arm: Register vcsm-cma as a platform
+ driver
+
+Following the same pattern as bcm2835-camera and bcm2835-audio,
+register the vcsm-cma driver as a platform driver
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -109,6 +109,7 @@ static struct class  *vchiq_class;
+ static DEFINE_SPINLOCK(msg_queue_spinlock);
+ static struct platform_device *bcm2835_camera;
+ static struct platform_device *bcm2835_audio;
++static struct platform_device *vcsm_cma;
+ 
+ static struct vchiq_drvdata bcm2835_drvdata = {
+ 	.cache_line_size = 32,
+@@ -2765,6 +2766,7 @@ static int vchiq_probe(struct platform_d
+ 		VCHIQ_VERSION, VCHIQ_VERSION_MIN,
+ 		MAJOR(vchiq_devid), MINOR(vchiq_devid));
+ 
++	vcsm_cma = vchiq_register_child(pdev, "vcsm-cma");
+ 	bcm2835_camera = vchiq_register_child(pdev, "bcm2835-camera");
+ 	bcm2835_audio = vchiq_register_child(pdev, "bcm2835_audio");
+ 
+@@ -2781,6 +2783,7 @@ static int vchiq_remove(struct platform_
+ {
+ 	platform_device_unregister(bcm2835_audio);
+ 	platform_device_unregister(bcm2835_camera);
++	platform_device_unregister(vcsm_cma);
+ 	vchiq_debugfs_deinit();
+ 	device_destroy(vchiq_class, vchiq_devid);
+ 	cdev_del(&vchiq_cdev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0171-staging-vchiq_arm-Register-bcm2835-codec-as-a-platfo.patch b/target/linux/bcm27xx/patches-5.10/950-0171-staging-vchiq_arm-Register-bcm2835-codec-as-a-platfo.patch
new file mode 100644
index 0000000000..dea284e0e6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0171-staging-vchiq_arm-Register-bcm2835-codec-as-a-platfo.patch
@@ -0,0 +1,40 @@
+From 49d23a9d1982010b7b677f3f5c78ffbf46e39d85 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 Nov 2019 13:57:58 +0000
+Subject: [PATCH] staging: vchiq_arm: Register bcm2835-codec as a
+ platform driver
+
+Following the same pattern as bcm2835-camera and bcm2835-audio,
+register the V4L2 codec driver as a platform driver
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -109,6 +109,7 @@ static struct class  *vchiq_class;
+ static DEFINE_SPINLOCK(msg_queue_spinlock);
+ static struct platform_device *bcm2835_camera;
+ static struct platform_device *bcm2835_audio;
++static struct platform_device *bcm2835_codec;
+ static struct platform_device *vcsm_cma;
+ 
+ static struct vchiq_drvdata bcm2835_drvdata = {
+@@ -2767,6 +2768,7 @@ static int vchiq_probe(struct platform_d
+ 		MAJOR(vchiq_devid), MINOR(vchiq_devid));
+ 
+ 	vcsm_cma = vchiq_register_child(pdev, "vcsm-cma");
++	bcm2835_codec = vchiq_register_child(pdev, "bcm2835-codec");
+ 	bcm2835_camera = vchiq_register_child(pdev, "bcm2835-camera");
+ 	bcm2835_audio = vchiq_register_child(pdev, "bcm2835_audio");
+ 
+@@ -2783,6 +2785,7 @@ static int vchiq_remove(struct platform_
+ {
+ 	platform_device_unregister(bcm2835_audio);
+ 	platform_device_unregister(bcm2835_camera);
++	platform_device_unregister(bcm2835_codec);
+ 	platform_device_unregister(vcsm_cma);
+ 	vchiq_debugfs_deinit();
+ 	device_destroy(vchiq_class, vchiq_devid);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0172-net-bcmgenet-The-second-IRQ-is-optional.patch b/target/linux/bcm27xx/patches-5.10/950-0172-net-bcmgenet-The-second-IRQ-is-optional.patch
new file mode 100644
index 0000000000..34b3238ed6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0172-net-bcmgenet-The-second-IRQ-is-optional.patch
@@ -0,0 +1,24 @@
+From 7f729e862d5d0f6605874393af075a6aa8e98bd5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 14 Nov 2019 11:59:01 +0000
+Subject: [PATCH] net: bcmgenet: The second IRQ is optional
+
+As of 5.4, the kernel logs errors for absent IRQs unless requested
+with platform_get_irq_optional.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_irq.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_irq.c
++++ b/drivers/gpu/drm/v3d/v3d_irq.c
+@@ -217,7 +217,7 @@ v3d_irq_init(struct v3d_dev *v3d)
+ 		V3D_CORE_WRITE(core, V3D_CTL_INT_CLR, V3D_CORE_IRQS);
+ 	V3D_WRITE(V3D_HUB_INT_CLR, V3D_HUB_IRQS);
+ 
+-	irq1 = platform_get_irq(v3d_to_pdev(v3d), 1);
++	irq1 = platform_get_irq_optional(v3d_to_pdev(v3d), 1);
+ 	if (irq1 == -EPROBE_DEFER)
+ 		return irq1;
+ 	if (irq1 > 0) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0173-net-phy-2711-Allow-ethernet-LED-mode-to-be-set-via-d.patch b/target/linux/bcm27xx/patches-5.10/950-0173-net-phy-2711-Allow-ethernet-LED-mode-to-be-set-via-d.patch
new file mode 100644
index 0000000000..84ad9387f6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0173-net-phy-2711-Allow-ethernet-LED-mode-to-be-set-via-d.patch
@@ -0,0 +1,46 @@
+From 3ab0c4b6aa76a4dedb51c4e800b5b4ba29187c46 Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Thu, 31 Oct 2019 14:39:44 +0000
+Subject: [PATCH] net:phy:2711 Allow ethernet LED mode to be set via
+ device tree
+
+Add device tree entries and code to allow the specification of
+the lighting modes for the LED's on the ethernet connector.
+
+Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
+---
+ drivers/net/phy/broadcom.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/phy/broadcom.c
++++ b/drivers/net/phy/broadcom.c
+@@ -313,6 +313,9 @@ static void bcm54xx_adjust_rxrefclk(stru
+ static int bcm54xx_config_init(struct phy_device *phydev)
+ {
+ 	int reg, err, val;
++	u32 led_modes[] = {BCM_LED_MULTICOLOR_LINK_ACT,
++			   BCM_LED_MULTICOLOR_LINK_ACT};
++	struct device_node *np = phydev->mdio.dev.of_node;
+ 
+ 	reg = phy_read(phydev, MII_BCM54XX_ECR);
+ 	if (reg < 0)
+@@ -368,6 +371,8 @@ static int bcm54xx_config_init(struct ph
+ 
+ 	bcm54xx_phydsp_config(phydev);
+ 
++	of_property_read_u32_array(np, "led-modes", led_modes, 2);
++
+ 	/* Encode link speed into LED1 and LED3 pair (green/amber).
+ 	 * Also flash these two LEDs on activity. This means configuring
+ 	 * them for MULTICOLOR and encoding link/activity into them.
+@@ -377,8 +382,8 @@ static int bcm54xx_config_init(struct ph
+ 	bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
+ 
+ 	val = BCM_LED_MULTICOLOR_IN_PHASE |
+-		BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
+-		BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
++		BCM5482_SHD_LEDS1_LED1(led_modes[0]) |
++		BCM5482_SHD_LEDS1_LED3(led_modes[1]);
+ 	bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0174-net-phy-2711-Change-the-default-ethernet-LED-actions.patch b/target/linux/bcm27xx/patches-5.10/950-0174-net-phy-2711-Change-the-default-ethernet-LED-actions.patch
new file mode 100644
index 0000000000..a6bf06b43c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0174-net-phy-2711-Change-the-default-ethernet-LED-actions.patch
@@ -0,0 +1,33 @@
+From 0534ec9429d41d9a00851444498f11b222d350b8 Mon Sep 17 00:00:00 2001
+From: James Hughes <james.hughes@raspberrypi.org>
+Date: Thu, 7 Nov 2019 14:59:59 +0000
+Subject: [PATCH] net:phy:2711 Change the default ethernet LED actions
+
+This should return default behaviour back to that of previous
+releases.
+---
+ drivers/net/phy/broadcom.c | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+--- a/drivers/net/phy/broadcom.c
++++ b/drivers/net/phy/broadcom.c
+@@ -314,7 +314,7 @@ static int bcm54xx_config_init(struct ph
+ {
+ 	int reg, err, val;
+ 	u32 led_modes[] = {BCM_LED_MULTICOLOR_LINK_ACT,
+-			   BCM_LED_MULTICOLOR_LINK_ACT};
++			   BCM_LED_MULTICOLOR_LINK};
+ 	struct device_node *np = phydev->mdio.dev.of_node;
+ 
+ 	reg = phy_read(phydev, MII_BCM54XX_ECR);
+@@ -373,10 +373,6 @@ static int bcm54xx_config_init(struct ph
+ 
+ 	of_property_read_u32_array(np, "led-modes", led_modes, 2);
+ 
+-	/* Encode link speed into LED1 and LED3 pair (green/amber).
+-	 * Also flash these two LEDs on activity. This means configuring
+-	 * them for MULTICOLOR and encoding link/activity into them.
+-	 */
+ 	val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
+ 		BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
+ 	bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0175-v3d_drv-Handle-missing-clock-more-gracefully.patch b/target/linux/bcm27xx/patches-5.10/950-0175-v3d_drv-Handle-missing-clock-more-gracefully.patch
new file mode 100644
index 0000000000..0596ba97f7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0175-v3d_drv-Handle-missing-clock-more-gracefully.patch
@@ -0,0 +1,27 @@
+From d26aa66c1e5b8c31547315d5421a83f0dd1eeef5 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Fri, 23 Aug 2019 16:34:38 +0100
+Subject: [PATCH] v3d_drv: Handle missing clock more gracefully
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/v3d/v3d_drv.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -290,10 +290,10 @@ static int v3d_platform_drm_probe(struct
+ 	}
+ 
+ 	v3d->clk = devm_clk_get(dev, NULL);
+-	if (IS_ERR(v3d->clk)) {
+-		if (ret != -EPROBE_DEFER)
+-			dev_err(dev, "Failed to get clock\n");
+-		goto dev_free;
++	if (IS_ERR_OR_NULL(v3d->clk)) {
++		if (PTR_ERR(v3d->clk) != -EPROBE_DEFER)
++			dev_err(dev, "Failed to get clock (%ld)\n", PTR_ERR(v3d->clk));
++		return PTR_ERR(v3d->clk);
+ 	}
+ 	v3d->clk_up_rate = clk_get_rate(v3d->clk);
+ 	/* For downclocking, drop it to the minimum frequency we can get from
diff --git a/target/linux/bcm27xx/patches-5.10/950-0176-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch b/target/linux/bcm27xx/patches-5.10/950-0176-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch
new file mode 100644
index 0000000000..ac1f38f089
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0176-v3d_gem-Kick-the-clock-so-firmware-knows-we-are-usin.patch
@@ -0,0 +1,27 @@
+From a29ca7c68f90f9e59e7bca36b52c738faf7851ad Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Thu, 5 Sep 2019 17:59:14 +0100
+Subject: [PATCH] v3d_gem: Kick the clock so firmware knows we are
+ using firmware clock interface
+
+Setting the v3d clock to low value allows firmware to handle dvfs in case
+where v3d hardware is not being actively used (e.g. console use).
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/v3d/v3d_gem.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/gpu/drm/v3d/v3d_gem.c
++++ b/drivers/gpu/drm/v3d/v3d_gem.c
+@@ -920,6 +920,10 @@ v3d_gem_init(struct drm_device *dev)
+ 	mutex_init(&v3d->clk_lock);
+ 	INIT_DELAYED_WORK(&v3d->clk_down_work, v3d_clock_down_work);
+ 
++	/* kick the clock so firmware knows we are using firmware clock interface */
++	v3d_clock_up_get(v3d);
++	v3d_clock_up_put(v3d);
++
+ 	/* Note: We don't allocate address 0.  Various bits of HW
+ 	 * treat 0 as special, such as the occlusion query counters
+ 	 * where 0 means "disabled".
diff --git a/target/linux/bcm27xx/patches-5.10/950-0177-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch b/target/linux/bcm27xx/patches-5.10/950-0177-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch
new file mode 100644
index 0000000000..258f058529
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0177-clk-raspberrypi-Allow-cpufreq-driver-to-also-adjust-.patch
@@ -0,0 +1,25 @@
+From 9111e23e3749f49ec35e062c3c7e9a46ebbd8642 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 9 Sep 2019 15:49:56 +0100
+Subject: [PATCH] clk-raspberrypi: Allow cpufreq driver to also adjust
+ gpu clocks
+
+For performance/power it is beneficial to adjust gpu clocks with arm clock.
+This is how the downstream cpufreq driver works
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -97,7 +97,7 @@ static int raspberrypi_clock_property(st
+ 	struct raspberrypi_firmware_prop msg = {
+ 		.id = cpu_to_le32(data->id),
+ 		.val = cpu_to_le32(*val),
+-		.disable_turbo = cpu_to_le32(1),
++		.disable_turbo = cpu_to_le32(0),
+ 	};
+ 	int ret;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0178-clk-bcm2835-Disable-v3d-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0178-clk-bcm2835-Disable-v3d-clock.patch
new file mode 100644
index 0000000000..b1e46d95cb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0178-clk-bcm2835-Disable-v3d-clock.patch
@@ -0,0 +1,58 @@
+From dcfed6cdcd38f9b0ca706af74710969aa8082c38 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 3 Sep 2019 20:28:00 +0100
+Subject: [PATCH] clk-bcm2835: Disable v3d clock
+
+This is controlled by firmware, see clk-raspberrypi.c
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-bcm2835.c | 30 ++++++++++++------------------
+ 1 file changed, 12 insertions(+), 18 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -1741,16 +1741,12 @@ static const struct bcm2835_clk_desc clk
+ 		.hold_mask = CM_PLLA_HOLDCORE,
+ 		.fixed_divider = 1,
+ 		.flags = CLK_SET_RATE_PARENT),
+-	[BCM2835_PLLA_PER]	= REGISTER_PLL_DIV(
+-		SOC_ALL,
+-		.name = "plla_per",
+-		.source_pll = "plla",
+-		.cm_reg = CM_PLLA,
+-		.a2w_reg = A2W_PLLA_PER,
+-		.load_mask = CM_PLLA_LOADPER,
+-		.hold_mask = CM_PLLA_HOLDPER,
+-		.fixed_divider = 1,
+-		.flags = CLK_SET_RATE_PARENT),
++
++	/*
++	 * PLLA_PER is used for gpu clocks. Controlled by firmware, see
++	 * clk-raspberrypi.c.
++	 */
++
+ 	[BCM2835_PLLA_DSI0]	= REGISTER_PLL_DIV(
+ 		SOC_ALL,
+ 		.name = "plla_dsi0",
+@@ -2051,14 +2047,12 @@ static const struct bcm2835_clk_desc clk
+ 		.int_bits = 6,
+ 		.frac_bits = 0,
+ 		.tcnt_mux = 3),
+-	[BCM2835_CLOCK_V3D]	= REGISTER_VPU_CLK(
+-		SOC_ALL,
+-		.name = "v3d",
+-		.ctl_reg = CM_V3DCTL,
+-		.div_reg = CM_V3DDIV,
+-		.int_bits = 4,
+-		.frac_bits = 8,
+-		.tcnt_mux = 4),
++
++	/*
++	 * CLOCK_V3D is used for v3d clock. Controlled by firmware, see
++	 * clk-raspberrypi.c.
++	 */
++
+ 	/*
+ 	 * VPU clock.  This doesn't have an enable bit, since it drives
+ 	 * the bus for everything else, and is special so it doesn't need
diff --git a/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch b/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch
new file mode 100644
index 0000000000..1289309a59
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0179-drm-v3d-Set-dma_mask-as-well-as-coherent_dma_mask.patch
@@ -0,0 +1,27 @@
+From 0a34bafa5816dd1425550968ff7d3de2dc955e6f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 22 Nov 2019 16:23:32 +0000
+Subject: [PATCH] drm/v3d: Set dma_mask as well as coherent_dma_mask
+
+Both coherent_dma_mask and dma_mask act as constraints on allocations
+and bounce buffer usage, so be sure to set dma_mask to the appropriate
+value otherwise the effective mask could be incorrect.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/v3d/v3d_drv.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/v3d/v3d_drv.c
++++ b/drivers/gpu/drm/v3d/v3d_drv.c
+@@ -263,8 +263,8 @@ static int v3d_platform_drm_probe(struct
+ 		return ret;
+ 
+ 	mmu_debug = V3D_READ(V3D_MMU_DEBUG_INFO);
+-	dev->coherent_dma_mask =
+-		DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH));
++	dma_set_mask_and_coherent(dev,
++		DMA_BIT_MASK(30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_PA_WIDTH)));
+ 	v3d->va_width = 30 + V3D_GET_FIELD(mmu_debug, V3D_MMU_VA_WIDTH);
+ 
+ 	ident1 = V3D_READ(V3D_HUB_IDENT1);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0180-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch b/target/linux/bcm27xx/patches-5.10/950-0180-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch
new file mode 100644
index 0000000000..894ac6bb5d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0180-staging-vchiq_arm-Set-up-dma-ranges-on-child-devices.patch
@@ -0,0 +1,33 @@
+From f18a78bd6232ebe254486740eb5f9bbdc4650879 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 29 Jan 2019 16:13:25 +0000
+Subject: [PATCH] staging: vchiq_arm: Set up dma ranges on child
+ devices
+
+The VCHIQ driver now loads the audio, camera, codec, and vc-sm
+drivers as platform drivers. However they were not being given
+the correct DMA configuration.
+
+Call of_dma_configure with the parent (VCHIQ) parameters to be
+inherited by the child.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c   | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -2710,6 +2710,12 @@ vchiq_register_child(struct platform_dev
+ 		child = NULL;
+ 	}
+ 
++	/*
++	 * We want the dma-ranges etc to be copied from the parent VCHIQ device
++	 * to be passed on to the children too.
++	 */
++	of_dma_configure(&new_dev->dev, pdev->dev.of_node, true);
++
+ 	return child;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0181-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch b/target/linux/bcm27xx/patches-5.10/950-0181-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
new file mode 100644
index 0000000000..0f07dd8d25
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0181-staging-vchiq-Use-the-old-dma-controller-for-OF-conf.patch
@@ -0,0 +1,51 @@
+From d7dbf1141d107ba6df15b04498e5fb88b6b61912 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 18 Jun 2019 12:15:50 +0100
+Subject: [PATCH] staging: vchiq: Use the old dma controller for OF
+ config on platform devices
+
+vchiq on Pi4 is no longer under the soc node, therefore it
+doesn't get the dma-ranges for the VPU.
+
+Switch to using the configuration of the old dma controller as
+that will set the dma-ranges correctly.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ .../interface/vchiq_arm/vchiq_arm.c             | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -2696,6 +2696,7 @@ vchiq_register_child(struct platform_dev
+ {
+ 	struct platform_device_info pdevinfo;
+ 	struct platform_device *child;
++	struct device_node *np;
+ 
+ 	memset(&pdevinfo, 0, sizeof(pdevinfo));
+ 
+@@ -2711,10 +2712,20 @@ vchiq_register_child(struct platform_dev
+ 	}
+ 
+ 	/*
+-	 * We want the dma-ranges etc to be copied from the parent VCHIQ device
+-	 * to be passed on to the children too.
++	 * We want the dma-ranges etc to be copied from a device with the
++	 * correct dma-ranges for the VPU.
++	 * VCHIQ on Pi4 is now under scb which doesn't get those dma-ranges.
++	 * Take the "dma" node as going to be suitable as it sees the world
++	 * through the same eyes as the VPU.
+ 	 */
+-	of_dma_configure(&new_dev->dev, pdev->dev.of_node, true);
++	np = of_find_node_by_path("dma");
++	if (!np)
++		np = pdev->dev.of_node;
++
++	of_dma_configure(&child->dev, np, true);
++
++	if (np != pdev->dev.of_node)
++		of_node_put(np);
+ 
+ 	return child;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0182-ARM-bcm-Backport-BCM2711-support-from-upstream.patch b/target/linux/bcm27xx/patches-5.10/950-0182-ARM-bcm-Backport-BCM2711-support-from-upstream.patch
new file mode 100644
index 0000000000..9f65d5d4fa
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0182-ARM-bcm-Backport-BCM2711-support-from-upstream.patch
@@ -0,0 +1,47 @@
+From 20534fd2fedd5c3febd239475e64d3dfc7d8400b Mon Sep 17 00:00:00 2001
+From: Stefan Wahren <wahrenst@gmx.net>
+Date: Fri, 27 Dec 2019 11:40:56 +0100
+Subject: [PATCH] ARM: bcm: Backport BCM2711 support from upstream
+
+Make the BCM2711 a different machine, but keep it in board_bcm2835.
+
+Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
+---
+ arch/arm/mach-bcm/board_bcm2835.c | 17 +++++++++++++++--
+ 1 file changed, 15 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/mach-bcm/board_bcm2835.c
++++ b/arch/arm/mach-bcm/board_bcm2835.c
+@@ -109,17 +109,30 @@ static const char * const bcm2835_compat
+ #ifdef CONFIG_ARCH_MULTI_V7
+ 	"brcm,bcm2836",
+ 	"brcm,bcm2837",
+-	"brcm,bcm2711",
+ #endif
+ 	NULL
+ };
+ 
+ DT_MACHINE_START(BCM2835, "BCM2835")
++	.map_io = bcm2835_map_io,
++	.init_machine = bcm2835_init,
++	.dt_compat = bcm2835_compat,
++	.smp = smp_ops(bcm2836_smp_ops),
++MACHINE_END
++
++static const char * const bcm2711_compat[] = {
++#ifdef CONFIG_ARCH_MULTI_V7
++	"brcm,bcm2711",
++#endif
++	NULL
++};
++
++DT_MACHINE_START(BCM2711, "BCM2711")
+ #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+ 	.dma_zone_size	= SZ_1G,
+ #endif
+ 	.map_io = bcm2835_map_io,
+ 	.init_machine = bcm2835_init,
+-	.dt_compat = bcm2835_compat,
++	.dt_compat = bcm2711_compat,
+ 	.smp = smp_ops(bcm2836_smp_ops),
+ MACHINE_END
diff --git a/target/linux/bcm27xx/patches-5.10/950-0183-Initialise-rpi-firmware-before-clk-bcm2835.patch b/target/linux/bcm27xx/patches-5.10/950-0183-Initialise-rpi-firmware-before-clk-bcm2835.patch
new file mode 100644
index 0000000000..dcd9ff4346
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0183-Initialise-rpi-firmware-before-clk-bcm2835.patch
@@ -0,0 +1,47 @@
+From a4dd91006d4fdbd5c0f32e48eb7babc98ebc37f2 Mon Sep 17 00:00:00 2001
+From: Luke Hinds <7058938+lukehinds@users.noreply.github.com>
+Date: Wed, 22 Jan 2020 16:03:00 +0000
+Subject: [PATCH] Initialise rpi-firmware before clk-bcm2835
+
+The IMA (Integrity Measurement Architecture) looks for a TPM (Trusted
+Platform Module) having been registered when it initialises; otherwise
+it assumes there is no TPM. It has been observed on BCM2835 that IMA
+is initialised before TPM, and that initialising the BCM2835 clock
+driver before the firmware driver has the effect of reversing this
+order.
+
+Change the firmware driver to initialise at core_initcall, delaying the
+BCM2835 clock driver to postcore_initcall.
+
+See: https://github.com/raspberrypi/linux/issues/3291
+     https://github.com/raspberrypi/linux/pull/3297
+
+Signed-off-by: Luke Hinds <lhinds@redhat.com>
+Co-authored-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/clk/bcm/clk-bcm2835.c  | 2 +-
+ drivers/firmware/raspberrypi.c | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/clk/bcm/clk-bcm2835.c
++++ b/drivers/clk/bcm/clk-bcm2835.c
+@@ -2429,7 +2429,7 @@ static int __init __bcm2835_clk_driver_i
+ {
+ 	return platform_driver_register(&bcm2835_clk_driver);
+ }
+-core_initcall(__bcm2835_clk_driver_init);
++postcore_initcall(__bcm2835_clk_driver_init);
+ 
+ MODULE_AUTHOR("Eric Anholt <eric@anholt.net>");
+ MODULE_DESCRIPTION("BCM2835 clock driver");
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -430,7 +430,7 @@ out2:
+ out1:
+ 	return ret;
+ }
+-subsys_initcall(rpi_firmware_init);
++core_initcall(rpi_firmware_init);
+ 
+ static void __init rpi_firmware_exit(void)
+ {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0184-staging-vchiq_arm-Give-vchiq-children-DT-nodes.patch b/target/linux/bcm27xx/patches-5.10/950-0184-staging-vchiq_arm-Give-vchiq-children-DT-nodes.patch
new file mode 100644
index 0000000000..f0457de0e8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0184-staging-vchiq_arm-Give-vchiq-children-DT-nodes.patch
@@ -0,0 +1,39 @@
+From 3e21610821310bfc015bbc8494e0e1f357e5a49e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 3 Feb 2020 17:30:46 +0000
+Subject: [PATCH] staging: vchiq_arm: Give vchiq children DT nodes
+
+vchiq kernel clients are now instantiated as platform drivers rather
+than using DT, but the children of the vchiq interface may still
+benefit from access to DT properties. Give them the option of a
+a sub-node of the vchiq parent for configuration and to allow
+them to be disabled.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -2705,12 +2705,20 @@ vchiq_register_child(struct platform_dev
+ 	pdevinfo.id = PLATFORM_DEVID_NONE;
+ 	pdevinfo.dma_mask = DMA_BIT_MASK(32);
+ 
++	np = of_get_child_by_name(pdev->dev.of_node, name);
++
++	/* Skip the child if it is explicitly disabled */
++	if (np && !of_device_is_available(np))
++		return NULL;
++
+ 	child = platform_device_register_full(&pdevinfo);
+ 	if (IS_ERR(child)) {
+ 		dev_warn(&pdev->dev, "%s not registered\n", name);
+ 		child = NULL;
+ 	}
+ 
++	child->dev.of_node = np;
++
+ 	/*
+ 	 * We want the dma-ranges etc to be copied from a device with the
+ 	 * correct dma-ranges for the VPU.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0185-pinctrl-bcm2835-Remove-gpiochip-on-error.patch b/target/linux/bcm27xx/patches-5.10/950-0185-pinctrl-bcm2835-Remove-gpiochip-on-error.patch
new file mode 100644
index 0000000000..497c283325
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0185-pinctrl-bcm2835-Remove-gpiochip-on-error.patch
@@ -0,0 +1,25 @@
+From 0da3ef334d4949431f34fea9f315d967e47a6a73 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 6 Jan 2020 16:04:30 +0000
+Subject: [PATCH] pinctrl: bcm2835: Remove gpiochip on error
+
+A failure in gpiochip_irqchip_add leads to a leak of a gpiochip. Fix
+the leak with the use of devm_gpiochip_add_data.
+
+Fixes: 85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -1300,7 +1300,7 @@ static int bcm2835_pinctrl_probe(struct
+ 	girq->default_type = IRQ_TYPE_NONE;
+ 	girq->handler = handle_level_irq;
+ 
+-	err = gpiochip_add_data(&pc->gpio_chip, pc);
++	err = devm_gpiochip_add_data(dev, &pc->gpio_chip, pc);
+ 	if (err) {
+ 		dev_err(dev, "could not add GPIO chip\n");
+ 		return err;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0186-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch b/target/linux/bcm27xx/patches-5.10/950-0186-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch
new file mode 100644
index 0000000000..2d13736fcb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0186-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch
@@ -0,0 +1,78 @@
+From 069990e0b524a7acdcfef0505913ee20401fec5a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 6 Jan 2020 14:05:42 +0000
+Subject: [PATCH] pinctrl: bcm2835: Change init order for gpio hogs
+
+pinctrl-bcm2835 is a combined pinctrl/gpio driver. Currently the gpio
+side is registered first, but this breaks gpio hogs (which are
+configured during gpiochip_add_data). Part of the hog initialisation
+is a call to pinctrl_gpio_request, and since the pinctrl driver hasn't
+yet been registered this results in an -EPROBE_DEFER from which it can
+never recover.
+
+Change the initialisation sequence to register the pinctrl driver
+first.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=260600
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 29 +++++++++++++++------------
+ 1 file changed, 16 insertions(+), 13 deletions(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -1244,6 +1244,18 @@ static int bcm2835_pinctrl_probe(struct
+ 		raw_spin_lock_init(&pc->irq_lock[i]);
+ 	}
+ 
++	pc->pctl_desc = *pdata->pctl_desc;
++	pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
++	if (IS_ERR(pc->pctl_dev)) {
++		gpiochip_remove(&pc->gpio_chip);
++		return PTR_ERR(pc->pctl_dev);
++	}
++
++	pc->gpio_range = *pdata->gpio_range;
++	pc->gpio_range.base = pc->gpio_chip.base;
++	pc->gpio_range.gc = &pc->gpio_chip;
++	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
++
+ 	girq = &pc->gpio_chip.irq;
+ 	girq->chip = &bcm2835_gpio_irq_chip;
+ 	girq->parent_handler = bcm2835_gpio_irq_handler;
+@@ -1251,8 +1263,10 @@ static int bcm2835_pinctrl_probe(struct
+ 	girq->parents = devm_kcalloc(dev, BCM2835_NUM_IRQS,
+ 				     sizeof(*girq->parents),
+ 				     GFP_KERNEL);
+-	if (!girq->parents)
++	if (!girq->parents) {
++		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
+ 		return -ENOMEM;
++	}
+ 
+ 	if (is_7211) {
+ 		pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
+@@ -1303,21 +1317,10 @@ static int bcm2835_pinctrl_probe(struct
+ 	err = devm_gpiochip_add_data(dev, &pc->gpio_chip, pc);
+ 	if (err) {
+ 		dev_err(dev, "could not add GPIO chip\n");
++		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
+ 		return err;
+ 	}
+ 
+-	pc->pctl_desc = *pdata->pctl_desc;
+-	pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
+-	if (IS_ERR(pc->pctl_dev)) {
+-		gpiochip_remove(&pc->gpio_chip);
+-		return PTR_ERR(pc->pctl_dev);
+-	}
+-
+-	pc->gpio_range = *pdata->gpio_range;
+-	pc->gpio_range.base = pc->gpio_chip.base;
+-	pc->gpio_range.gc = &pc->gpio_chip;
+-	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+-
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0187-pinctrl-bcm2835-Accept-fewer-than-expected-IRQs.patch b/target/linux/bcm27xx/patches-5.10/950-0187-pinctrl-bcm2835-Accept-fewer-than-expected-IRQs.patch
new file mode 100644
index 0000000000..4456504ee8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0187-pinctrl-bcm2835-Accept-fewer-than-expected-IRQs.patch
@@ -0,0 +1,31 @@
+From 9ab71458b5475c7d8d42896721e593f6ef1a5c7a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 25 Feb 2020 17:38:20 +0000
+Subject: [PATCH] pinctrl: bcm2835: Accept fewer than expected IRQs
+
+The downstream .dts files only request two GPIO IRQs. Truncate the
+array of parent IRQs when irq_of_parse_and_map returns 0.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -1288,9 +1288,13 @@ static int bcm2835_pinctrl_probe(struct
+ 		char *name;
+ 
+ 		girq->parents[i] = irq_of_parse_and_map(np, i);
+-		if (!is_7211)
++		if (!is_7211) {
++			if (!girq->parents[i]) {
++				girq->num_parents = i;
++				break;
++			}
+ 			continue;
+-
++		}
+ 		/* Skip over the all banks interrupts */
+ 		pc->wake_irq[i] = irq_of_parse_and_map(np, i +
+ 						       BCM2835_NUM_IRQS + 1);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0188-drivers-char-vcio-Use-common-compat-header.patch b/target/linux/bcm27xx/patches-5.10/950-0188-drivers-char-vcio-Use-common-compat-header.patch
new file mode 100644
index 0000000000..f02e370859
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0188-drivers-char-vcio-Use-common-compat-header.patch
@@ -0,0 +1,23 @@
+From b1c80253689fe3d451d08ec707907b2dca61ddc3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 2 Mar 2020 14:40:19 +0000
+Subject: [PATCH] drivers: char: vcio: Use common compat header
+
+The definition of compat_ptr is now common for most platforms, but
+requires the inclusion of <linux/compat.h>.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/char/broadcom/vcio.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/char/broadcom/vcio.c
++++ b/drivers/char/broadcom/vcio.c
+@@ -18,6 +18,7 @@
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/uaccess.h>
++#include <linux/compat.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ #define MBOX_CHAN_PROPERTY 8
diff --git a/target/linux/bcm27xx/patches-5.10/950-0189-video-fbdev-bcm2708_fb-Use-common-compat-header.patch b/target/linux/bcm27xx/patches-5.10/950-0189-video-fbdev-bcm2708_fb-Use-common-compat-header.patch
new file mode 100644
index 0000000000..6a4b9650c5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0189-video-fbdev-bcm2708_fb-Use-common-compat-header.patch
@@ -0,0 +1,23 @@
+From 6dd897b34471d95f9c01d19df06c339fe6fbf38c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 2 Mar 2020 14:42:23 +0000
+Subject: [PATCH] video: fbdev: bcm2708_fb: Use common compat header
+
+The definition of compat_ptr is now common for most platforms, but
+requires the inclusion of <linux/compat.h>.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/video/fbdev/bcm2708_fb.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -38,6 +38,7 @@
+ #include <linux/cred.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ #include <linux/mutex.h>
++#include <linux/compat.h>
+ 
+ //#define BCM2708_FB_DEBUG
+ #define MODULE_NAME "bcm2708_fb"
diff --git a/target/linux/bcm27xx/patches-5.10/950-0190-of-overlay-Correct-symbol-path-fixups.patch b/target/linux/bcm27xx/patches-5.10/950-0190-of-overlay-Correct-symbol-path-fixups.patch
new file mode 100644
index 0000000000..cbbf4937f7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0190-of-overlay-Correct-symbol-path-fixups.patch
@@ -0,0 +1,37 @@
+From 68e9899b2c99dbe97ecf9008e7e43f5b393f26a3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 6 Feb 2020 12:23:15 +0000
+Subject: [PATCH] of: overlay: Correct symbol path fixups
+
+When symbols from overlays are added to the live tree their paths must
+be rebased. The translated symbol is normally the result of joining
+the fragment-relative path (with a leading "/") to the target path
+(either copied directly from the "target-path" property or resolved
+from the phandle). This translation fails when the target is the root
+node (a common case for Raspberry Pi overlays) because the resulting
+path starts with a double slash. For example, if target-path is "/" and
+the fragment adds a node called "newnode", the label associated with
+that node will be assigned the path "//newnode", which can't be found
+in the tree.
+
+Fix the failure case by explicitly replacing a target path of "/" with
+an empty string.
+
+Fixes: d1651b03c2df ("of: overlay: add overlay symbols to live device tree")
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/of/overlay.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/of/overlay.c
++++ b/drivers/of/overlay.c
+@@ -245,6 +245,8 @@ static struct property *dup_and_fixup_sy
+ 	if (!target_path)
+ 		return NULL;
+ 	target_path_len = strlen(target_path);
++	if (!strcmp(target_path, "/"))
++		target_path_len = 0;
+ 
+ 	new_prop = kzalloc(sizeof(*new_prop), GFP_KERNEL);
+ 	if (!new_prop)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0191-dt-bindings-pci-Add-DT-docs-for-Brcmstb-PCIe-device.patch b/target/linux/bcm27xx/patches-5.10/950-0191-dt-bindings-pci-Add-DT-docs-for-Brcmstb-PCIe-device.patch
new file mode 100644
index 0000000000..566f08cbe3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0191-dt-bindings-pci-Add-DT-docs-for-Brcmstb-PCIe-device.patch
@@ -0,0 +1,77 @@
+From 4f65cebc14d6af8b4a9f19426b43b3ae49ee8538 Mon Sep 17 00:00:00 2001
+From: Jim Quinlan <jim2101024@gmail.com>
+Date: Mon, 15 Jan 2018 18:28:39 -0500
+Subject: [PATCH] dt-bindings: pci: Add DT docs for Brcmstb PCIe device
+
+The DT bindings description of the Brcmstb PCIe device is described.  This
+node can be used by almost all Broadcom settop box chips, using
+ARM, ARM64, or MIPS CPU architectures.
+
+Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
+---
+ .../devicetree/bindings/pci/brcmstb-pcie.txt  | 59 +++++++++++++++++++
+ 1 file changed, 59 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/pci/brcmstb-pcie.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pci/brcmstb-pcie.txt
+@@ -0,0 +1,59 @@
++Brcmstb PCIe Host Controller Device Tree Bindings
++
++Required Properties:
++- compatible
++  "brcm,bcm7425-pcie" -- for 7425 family MIPS-based SOCs.
++  "brcm,bcm7435-pcie" -- for 7435 family MIPS-based SOCs.
++  "brcm,bcm7445-pcie" -- for 7445 and later ARM based SOCs (not including
++      the 7278).
++  "brcm,bcm7278-pcie"  -- for 7278 family ARM-based SOCs.
++
++- reg -- the register start address and length for the PCIe reg block.
++- interrupts -- two interrupts are specified; the first interrupt is for
++     the PCI host controller and the second is for MSI if the built-in
++     MSI controller is to be used.
++- interrupt-names -- names of the interrupts (above): "pcie" and "msi".
++- #address-cells -- set to <3>.
++- #size-cells -- set to <2>.
++- #interrupt-cells: set to <1>.
++- interrupt-map-mask and interrupt-map, standard PCI properties to define the
++     mapping of the PCIe interface to interrupt numbers.
++- ranges: ranges for the PCI memory and I/O regions.
++- linux,pci-domain -- should be unique per host controller.
++
++Optional Properties:
++- clocks -- phandle of pcie clock.
++- clock-names -- set to "sw_pcie" if clocks is used.
++- dma-ranges -- Specifies the inbound memory mapping regions when
++     an "identity map" is not possible.
++- msi-controller -- this property is typically specified to have the
++     PCIe controller use its internal MSI controller.
++- msi-parent -- set to use an external MSI interrupt controller.
++- brcm,enable-ssc -- (boolean) indicates usage of spread-spectrum clocking.
++- max-link-speed --  (integer) indicates desired generation of link:
++     1 => 2.5 Gbps (gen1), 2 => 5.0 Gbps (gen2), 3 => 8.0 Gbps (gen3).
++
++Example Node:
++
++pcie0: pcie@f0460000 {
++		reg = <0x0 0xf0460000 0x0 0x9310>;
++		interrupts = <0x0 0x0 0x4>;
++		compatible = "brcm,bcm7445-pcie";
++		#address-cells = <3>;
++		#size-cells = <2>;
++		ranges = <0x02000000 0x00000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x08000000
++			  0x02000000 0x00000000 0x08000000 0x00000000 0xc8000000 0x00000000 0x08000000>;
++		#interrupt-cells = <1>;
++		interrupt-map-mask = <0 0 0 7>;
++		interrupt-map = <0 0 0 1 &intc 0 47 3
++				 0 0 0 2 &intc 0 48 3
++				 0 0 0 3 &intc 0 49 3
++				 0 0 0 4 &intc 0 50 3>;
++		clocks = <&sw_pcie0>;
++		clock-names = "sw_pcie";
++		msi-parent = <&pcie0>;  /* use PCIe's internal MSI controller */
++		msi-controller;         /* use PCIe's internal MSI controller */
++		brcm,ssc;
++		max-link-speed = <1>;
++		linux,pci-domain = <0>;
++	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0192-Kbuild-Allow-.dtbo-overlays-to-be-built-adjust.patch b/target/linux/bcm27xx/patches-5.10/950-0192-Kbuild-Allow-.dtbo-overlays-to-be-built-adjust.patch
new file mode 100644
index 0000000000..bf59fc6c8f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0192-Kbuild-Allow-.dtbo-overlays-to-be-built-adjust.patch
@@ -0,0 +1,26 @@
+From 45ae2035e05d4519d86f1073a257dea3a920f484 Mon Sep 17 00:00:00 2001
+From: Nataliya Korovkina <malus.brandywine@gmail.com>
+Date: Thu, 12 Mar 2020 17:22:53 -0400
+Subject: [PATCH] Kbuild: Allow .dtbo overlays to be built, adjust.
+
+This is adjustment to commit
+d368ceaacdccd7732dc97d1d7987bdf7149d62e3 "kbuild: Allow .dtbo overlays to be built piecemeal"
+
+prepare3 target has gone from mainline tree in branch 5.4.y
+
+Signed-off-by: Nataliya Korovkina <malus.brandywine@gmail.com>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/Makefile
++++ b/Makefile
+@@ -1354,7 +1354,7 @@ ifneq ($(dtstree),)
+ %.dtb: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
+ 
+-%.dtbo: prepare3 scripts_dtc
++%.dtbo: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
+ 
+ PHONY += dtbs dtbs_install dtbs_check
diff --git a/target/linux/bcm27xx/patches-5.10/950-0193-bcmgenet-Disable-skip_umac_reset-by-default.patch b/target/linux/bcm27xx/patches-5.10/950-0193-bcmgenet-Disable-skip_umac_reset-by-default.patch
new file mode 100644
index 0000000000..9792ac8290
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0193-bcmgenet-Disable-skip_umac_reset-by-default.patch
@@ -0,0 +1,23 @@
+From f290455548d9e9ea5f03464d229d08a854a9fb37 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 1 Apr 2020 11:22:44 +0100
+Subject: [PATCH] bcmgenet: Disable skip_umac_reset by default
+
+Possible fixed upstream by 'net: bcmgenet: keep MAC in reset until PHY is up'
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+@@ -67,7 +67,7 @@
+ 
+ /* Forward declarations */
+ static void bcmgenet_set_rx_mode(struct net_device *dev);
+-static bool skip_umac_reset = true;
++static bool skip_umac_reset = false;
+ module_param(skip_umac_reset, bool, 0444);
+ MODULE_PARM_DESC(skip_umac_reset, "Skip UMAC reset step");
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0194-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch b/target/linux/bcm27xx/patches-5.10/950-0194-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch
new file mode 100644
index 0000000000..c075dd1f9c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0194-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch
@@ -0,0 +1,55 @@
+From 1a3319588434a2acfe47a38fcdf6583a3b84ecd3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 24 Jan 2020 14:22:06 +0000
+Subject: [PATCH] drm/fourcc: Add packed 10bit YUV 4:2:0 format
+
+Adds a format that is 3 10bit YUV 4:2:0 samples packed into
+a 32bit work (with 2 spare bits).
+
+Supported on Broadcom BCM2711 chips.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/drm_fourcc.c  |  3 +++
+ include/uapi/drm/drm_fourcc.h | 11 +++++++++++
+ 2 files changed, 14 insertions(+)
+
+--- a/drivers/gpu/drm/drm_fourcc.c
++++ b/drivers/gpu/drm/drm_fourcc.c
+@@ -286,6 +286,9 @@ const struct drm_format_info *__drm_form
+ 		  .num_planes = 3, .char_per_block = { 2, 2, 2 },
+ 		  .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0,
+ 		  .vsub = 0, .is_yuv = true },
++		{ .format = DRM_FORMAT_P030,            .depth = 0,  .num_planes = 2,
++		  .char_per_block = { 4, 4, 0 }, .block_w = { 3, 0, 0 }, .block_h = { 1, 0, 0 },
++		  .hsub = 2, .vsub = 2, .is_yuv = true},
+ 	};
+ 
+ 	unsigned int i;
+--- a/include/uapi/drm/drm_fourcc.h
++++ b/include/uapi/drm/drm_fourcc.h
+@@ -288,6 +288,13 @@ extern "C" {
+ #define DRM_FORMAT_Q401		fourcc_code('Q', '4', '0', '1')
+ 
+ /*
++ * 2 plane YCbCr MSB aligned, 3 pixels packed into 4 bytes.
++ * index 0 = Y plane, [31:0] x:Y2:Y1:Y0 2:10:10:10 little endian
++ * index 1 = Cr:Cb plane, [63:0] x:Cr2:Cb2:Cr1:x:Cb1:Cr0:Cb0 [2:10:10:10:2:10:10:10] little endian
++ */
++#define DRM_FORMAT_P030		fourcc_code('P', '0', '3', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel packed */
++
++/*
+  * 3 plane YCbCr
+  * index 0: Y plane, [7:0] Y
+  * index 1: Cb plane, [7:0] Cb
+@@ -777,6 +784,10 @@ drm_fourcc_canonicalize_nvidia_format_mo
+  * and UV.  Some SAND-using hardware stores UV in a separate tiled
+  * image from Y to reduce the column height, which is not supported
+  * with these modifiers.
++ *
++ * The DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT modifier is also
++ * supported for DRM_FORMAT_P030 where the columns remain as 128 bytes
++ * wide, but as this is a 10 bpp format that translates to 96 pixels.
+  */
+ 
+ #define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \
diff --git a/target/linux/bcm27xx/patches-5.10/950-0195-media-uapi-hevc-Add-scaling-matrix-control.patch b/target/linux/bcm27xx/patches-5.10/950-0195-media-uapi-hevc-Add-scaling-matrix-control.patch
new file mode 100644
index 0000000000..53e3f49914
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0195-media-uapi-hevc-Add-scaling-matrix-control.patch
@@ -0,0 +1,150 @@
+From e4ae41f35d7d361759b5aa1e1a3e13bafd46f9db Mon Sep 17 00:00:00 2001
+From: Jernej Skrabec <jernej.skrabec@siol.net>
+Date: Fri, 13 Dec 2019 17:04:25 +0100
+Subject: [PATCH] media: uapi: hevc: Add scaling matrix control
+
+Taken from https://patchwork.linuxtv.org/patch/60728/
+Changes (mainly documentation) have been requested.
+
+HEVC has a scaling matrix concept. Add support for it.
+
+Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
+---
+ .../media/v4l/ext-ctrls-codec.rst             | 41 +++++++++++++++++++
+ .../media/v4l/pixfmt-compressed.rst           |  1 +
+ drivers/media/v4l2-core/v4l2-ctrls.c          | 10 +++++
+ include/media/hevc-ctrls.h                    | 11 +++++
+ 4 files changed, 63 insertions(+)
+
+--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
++++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+@@ -4319,6 +4319,47 @@ enum v4l2_mpeg_video_hevc_size_of_length
+       - ``padding[6]``
+       - Applications and drivers must set this to zero.
+ 
++``V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX (struct)``
++    Specifies the scaling matrix (as extracted from the bitstream) for
++    the associated HEVC slice data. The bitstream parameters are
++    defined according to :ref:`hevc`, section 7.4.5 "Scaling list
++    data semantics". For further documentation, refer to the above
++    specification, unless there is an explicit comment stating
++    otherwise.
++
++    .. note::
++
++       This compound control is not yet part of the public kernel API and
++       it is expected to change.
++
++.. c:type:: v4l2_ctrl_hevc_scaling_matrix
++
++.. cssclass:: longtable
++
++.. flat-table:: struct v4l2_ctrl_hevc_scaling_matrix
++    :header-rows:  0
++    :stub-columns: 0
++    :widths:       1 1 2
++
++    * - __u8
++      - ``scaling_list_4x4[6][16]``
++      -
++    * - __u8
++      - ``scaling_list_8x8[6][64]``
++      -
++    * - __u8
++      - ``scaling_list_16x16[6][64]``
++      -
++    * - __u8
++      - ``scaling_list_32x32[2][64]``
++      -
++    * - __u8
++      - ``scaling_list_dc_coef_16x16[6]``
++      -
++    * - __u8
++      - ``scaling_list_dc_coef_32x32[2]``
++      -
++
+ ``V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE (enum)``
+     Specifies the decoding mode to use. Currently exposes slice-based and
+     frame-based decoding but new modes might be added later on.
+--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
++++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+@@ -200,6 +200,7 @@ Compressed Formats
+         * ``V4L2_CID_MPEG_VIDEO_HEVC_SPS``
+         * ``V4L2_CID_MPEG_VIDEO_HEVC_PPS``
+         * ``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS``
++        * ``V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX``
+ 	See the :ref:`associated Codec Control IDs <v4l2-mpeg-hevc>`.
+ 	Buffers associated with this pixel format must contain the appropriate
+ 	number of macroblocks to decode a full corresponding frame.
+--- a/drivers/media/v4l2-core/v4l2-ctrls.c
++++ b/drivers/media/v4l2-core/v4l2-ctrls.c
+@@ -1022,6 +1022,7 @@ const char *v4l2_ctrl_get_name(u32 id)
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_SPS:			return "HEVC Sequence Parameter Set";
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_PPS:			return "HEVC Picture Parameter Set";
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS:		return "HEVC Slice Parameters";
++	case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX:		return "HEVC Scaling Matrix";
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE:		return "HEVC Decode Mode";
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE:		return "HEVC Start Code";
+ 
+@@ -1462,6 +1463,9 @@ void v4l2_ctrl_fill(u32 id, const char *
+ 	case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS:
+ 		*type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS;
+ 		break;
++	case V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX:
++		*type = V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX;
++		break;
+ 	case V4L2_CID_UNIT_CELL_SIZE:
+ 		*type = V4L2_CTRL_TYPE_AREA;
+ 		*flags |= V4L2_CTRL_FLAG_READ_ONLY;
+@@ -1935,6 +1939,9 @@ static int std_validate_compound(const s
+ 		zero_padding(*p_hevc_slice_params);
+ 		break;
+ 
++	case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX:
++		break;
++
+ 	case V4L2_CTRL_TYPE_AREA:
+ 		area = p;
+ 		if (!area->width || !area->height)
+@@ -2645,6 +2652,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(s
+ 	case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
+ 		elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params);
+ 		break;
++	case V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX:
++		elem_size = sizeof(struct v4l2_ctrl_hevc_scaling_matrix);
++		break;
+ 	case V4L2_CTRL_TYPE_AREA:
+ 		elem_size = sizeof(struct v4l2_area);
+ 		break;
+--- a/include/media/hevc-ctrls.h
++++ b/include/media/hevc-ctrls.h
+@@ -19,6 +19,7 @@
+ #define V4L2_CID_MPEG_VIDEO_HEVC_SPS		(V4L2_CID_MPEG_BASE + 1008)
+ #define V4L2_CID_MPEG_VIDEO_HEVC_PPS		(V4L2_CID_MPEG_BASE + 1009)
+ #define V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS	(V4L2_CID_MPEG_BASE + 1010)
++#define V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX	(V4L2_CID_MPEG_BASE + 1011)
+ #define V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE	(V4L2_CID_MPEG_BASE + 1015)
+ #define V4L2_CID_MPEG_VIDEO_HEVC_START_CODE	(V4L2_CID_MPEG_BASE + 1016)
+ 
+@@ -26,6 +27,7 @@
+ #define V4L2_CTRL_TYPE_HEVC_SPS 0x0120
+ #define V4L2_CTRL_TYPE_HEVC_PPS 0x0121
+ #define V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS 0x0122
++#define V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX 0x0123
+ 
+ enum v4l2_mpeg_video_hevc_decode_mode {
+ 	V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED,
+@@ -210,4 +212,13 @@ struct v4l2_ctrl_hevc_slice_params {
+ 	__u64	flags;
+ };
+ 
++struct v4l2_ctrl_hevc_scaling_matrix {
++	__u8	scaling_list_4x4[6][16];
++	__u8	scaling_list_8x8[6][64];
++	__u8	scaling_list_16x16[6][64];
++	__u8	scaling_list_32x32[2][64];
++	__u8	scaling_list_dc_coef_16x16[6];
++	__u8	scaling_list_dc_coef_32x32[2];
++};
++
+ #endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0196-media-uapi-hevc-Add-segment-address-field.patch b/target/linux/bcm27xx/patches-5.10/950-0196-media-uapi-hevc-Add-segment-address-field.patch
new file mode 100644
index 0000000000..b0e610bf04
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0196-media-uapi-hevc-Add-segment-address-field.patch
@@ -0,0 +1,61 @@
+From 551676b89a12d9de33618c1c02b749653941fe83 Mon Sep 17 00:00:00 2001
+From: Jernej Skrabec <jernej.skrabec@siol.net>
+Date: Fri, 13 Dec 2019 17:04:27 +0100
+Subject: [PATCH] media: uapi: hevc: Add segment address field
+
+From https://patchwork.linuxtv.org/patch/60725/
+Changes requested, but mainly docs.
+
+If HEVC frame consists of multiple slices, segment address has to be
+known in order to properly decode it.
+
+Add segment address field to slice parameters.
+
+Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
+---
+ Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 5 ++++-
+ include/media/hevc-ctrls.h                                | 5 ++++-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
++++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+@@ -4111,6 +4111,9 @@ enum v4l2_mpeg_video_hevc_size_of_length
+     * - __u32
+       - ``data_bit_offset``
+       - Offset (in bits) to the video data in the current slice data.
++    * - __u32
++      - ``slice_segment_addr``
++      -
+     * - __u8
+       - ``nal_unit_type``
+       -
+@@ -4188,7 +4191,7 @@ enum v4l2_mpeg_video_hevc_size_of_length
+       - ``num_rps_poc_lt_curr``
+       - The number of reference pictures in the long-term set.
+     * - __u8
+-      - ``padding[7]``
++      - ``padding[5]``
+       - Applications and drivers must set this to zero.
+     * - struct :c:type:`v4l2_hevc_dpb_entry`
+       - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+--- a/include/media/hevc-ctrls.h
++++ b/include/media/hevc-ctrls.h
+@@ -168,6 +168,9 @@ struct v4l2_ctrl_hevc_slice_params {
+ 	__u32	bit_size;
+ 	__u32	data_bit_offset;
+ 
++	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
++	__u32	slice_segment_addr;
++
+ 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
+ 	__u8	nal_unit_type;
+ 	__u8	nuh_temporal_id_plus1;
+@@ -201,7 +204,7 @@ struct v4l2_ctrl_hevc_slice_params {
+ 	__u8	num_rps_poc_st_curr_after;
+ 	__u8	num_rps_poc_lt_curr;
+ 
+-	__u8	padding;
++	__u8	padding[5];
+ 
+ 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
+ 	struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
diff --git a/target/linux/bcm27xx/patches-5.10/950-0197-media-uapi-Add-hevc-ctrls-for-WPP-decoding.patch b/target/linux/bcm27xx/patches-5.10/950-0197-media-uapi-Add-hevc-ctrls-for-WPP-decoding.patch
new file mode 100644
index 0000000000..a018a1ba47
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0197-media-uapi-Add-hevc-ctrls-for-WPP-decoding.patch
@@ -0,0 +1,40 @@
+From cfbd02c5469513b6d28d9012b14d70baa44869c5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 23 Mar 2020 19:00:17 +0000
+Subject: [PATCH] media: uapi: Add hevc ctrls for WPP decoding
+
+WPP can allow greater parallelism within the decode, but needs
+offset information to be passed in.
+
+Adds num_entry_point_offsets and entry_point_offset_minus1 to
+v4l2_ctrl_hevc_slice_params.
+
+This is based on Jernej Skrabec's patches for cedrus which
+implement the same feature.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ include/media/hevc-ctrls.h | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/include/media/hevc-ctrls.h
++++ b/include/media/hevc-ctrls.h
+@@ -170,6 +170,7 @@ struct v4l2_ctrl_hevc_slice_params {
+ 
+ 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
+ 	__u32	slice_segment_addr;
++	__u32	num_entry_point_offsets;
+ 
+ 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
+ 	__u8	nal_unit_type;
+@@ -204,7 +205,9 @@ struct v4l2_ctrl_hevc_slice_params {
+ 	__u8	num_rps_poc_st_curr_after;
+ 	__u8	num_rps_poc_lt_curr;
+ 
+-	__u8	padding[5];
++	__u8	padding;
++
++	__u32	entry_point_offset_minus1[256];
+ 
+ 	/* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
+ 	struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
diff --git a/target/linux/bcm27xx/patches-5.10/950-0198-media-videodev2.h-Add-a-format-for-column-YUV4-2-0-m.patch b/target/linux/bcm27xx/patches-5.10/950-0198-media-videodev2.h-Add-a-format-for-column-YUV4-2-0-m.patch
new file mode 100644
index 0000000000..abeddf9c76
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0198-media-videodev2.h-Add-a-format-for-column-YUV4-2-0-m.patch
@@ -0,0 +1,302 @@
+From 3e25101dea3ed13e98339dffbc9410459e617d9a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 24 Jan 2020 14:28:21 +0000
+Subject: [PATCH] media: videodev2.h: Add a format for column YUV4:2:0
+ modes
+
+Some of the Broadcom codec blocks use a column based YUV4:2:0 image
+format, so add the documentation and defines for both 8 and 10 bit
+versions.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../media/v4l/pixfmt-nv12-col128.rst          | 215 ++++++++++++++++++
+ .../userspace-api/media/v4l/pixfmt-nv12.rst   |  14 +-
+ .../userspace-api/media/v4l/yuv-formats.rst   |   1 +
+ drivers/media/v4l2-core/v4l2-ioctl.c          |   2 +
+ include/uapi/linux/videodev2.h                |   4 +
+ 5 files changed, 233 insertions(+), 3 deletions(-)
+ create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-nv12-col128.rst
+
+--- /dev/null
++++ b/Documentation/userspace-api/media/v4l/pixfmt-nv12-col128.rst
+@@ -0,0 +1,215 @@
++.. Permission is granted to copy, distribute and/or modify this
++.. document under the terms of the GNU Free Documentation License,
++.. Version 1.1 or any later version published by the Free Software
++.. Foundation, with no Invariant Sections, no Front-Cover Texts
++.. and no Back-Cover Texts. A copy of the license is included at
++.. Documentation/media/uapi/fdl-appendix.rst.
++..
++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
++
++.. _V4L2_PIX_FMT_NV12_COL128:
++.. _V4L2_PIX_FMT_NV12_10_COL128:
++
++********************************************************************************
++V4L2_PIX_FMT_NV12_COL128, V4L2_PIX_FMT_NV12_10_COL128
++********************************************************************************
++
++
++V4L2_PIX_FMT_NV21_COL128
++Formats with ½ horizontal and vertical chroma resolution. This format
++has two planes - one for luminance and one for chrominance. Chroma
++samples are interleaved. The difference to ``V4L2_PIX_FMT_NV12`` is the
++memory layout. The image is split into columns of 128 bytes wide rather than
++being in raster order.
++
++V4L2_PIX_FMT_NV12_10_COL128
++Follows the same pattern as ``V4L2_PIX_FMT_NV21_COL128`` with 128 byte, but is
++a 10bit format with 3 10-bit samples being packed into 4 bytes. Each 128 byte
++wide column therefore contains 96 samples.
++
++
++Description
++===========
++
++This is the two-plane versions of the YUV 4:2:0 format where data is
++grouped into 128 byte wide columns. The three components are separated into
++two sub-images or planes. The Y plane has one byte per pixel and pixels
++are grouped into 128 byte wide columns. The CbCr plane has the same width,
++in bytes, as the Y plane (and the image), but is half as tall in pixels.
++The chroma plane is also in 128 byte columns, reflecting 64 Cb and 64 Cr
++samples.
++
++The chroma samples for a column follow the luma samples. If there is any
++paddding, then that will be reflected via the selection API.
++The luma height must be a multiple of 2 lines.
++
++The normal bytesperline is effectively fixed at 128. However the format
++requires knowledge of the stride between columns, therefore the bytesperline
++value has been repurposed to denote the number of 128 byte long lines between
++the start of each column.
++
++**Byte Order.**
++
++
++.. flat-table::
++    :header-rows:  0
++    :stub-columns: 0
++    :widths: 12 12 12 12 12 4 12 12 12 12
++
++    * - start + 0:
++      - Y'\ :sub:`0,0`
++      - Y'\ :sub:`0,1`
++      - Y'\ :sub:`0,2`
++      - Y'\ :sub:`0,3`
++      - ...
++      - Y'\ :sub:`0,124`
++      - Y'\ :sub:`0,125`
++      - Y'\ :sub:`0,126`
++      - Y'\ :sub:`0,127`
++    * - start + 128:
++      - Y'\ :sub:`1,0`
++      - Y'\ :sub:`1,1`
++      - Y'\ :sub:`1,2`
++      - Y'\ :sub:`1,3`
++      - ...
++      - Y'\ :sub:`1,124`
++      - Y'\ :sub:`1,125`
++      - Y'\ :sub:`1,126`
++      - Y'\ :sub:`1,127`
++    * - start + 256:
++      - Y'\ :sub:`2,0`
++      - Y'\ :sub:`2,1`
++      - Y'\ :sub:`2,2`
++      - Y'\ :sub:`2,3`
++      - ...
++      - Y'\ :sub:`2,124`
++      - Y'\ :sub:`2,125`
++      - Y'\ :sub:`2,126`
++      - Y'\ :sub:`2,127`
++    * - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++    * - start + ((height-1) * 128):
++      - Y'\ :sub:`height-1,0`
++      - Y'\ :sub:`height-1,1`
++      - Y'\ :sub:`height-1,2`
++      - Y'\ :sub:`height-1,3`
++      - ...
++      - Y'\ :sub:`height-1,124`
++      - Y'\ :sub:`height-1,125`
++      - Y'\ :sub:`height-1,126`
++      - Y'\ :sub:`height-1,127`
++    * - start + ((height) * 128):
++      - Cb\ :sub:`0,0`
++      - Cr\ :sub:`0,0`
++      - Cb\ :sub:`0,1`
++      - Cr\ :sub:`0,1`
++      - ...
++      - Cb\ :sub:`0,62`
++      - Cr\ :sub:`0,62`
++      - Cb\ :sub:`0,63`
++      - Cr\ :sub:`0,63`
++    * - start + ((height+1) * 128):
++      - Cb\ :sub:`1,0`
++      - Cr\ :sub:`1,0`
++      - Cb\ :sub:`1,1`
++      - Cr\ :sub:`1,1`
++      - ...
++      - Cb\ :sub:`1,62`
++      - Cr\ :sub:`1,62`
++      - Cb\ :sub:`1,63`
++      - Cr\ :sub:`1,63`
++    * - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++    * - start + ((height+(height/2)-1) * 128):
++      - Cb\ :sub:`(height/2)-1,0`
++      - Cr\ :sub:`(height/2)-1,0`
++      - Cb\ :sub:`(height/2)-1,1`
++      - Cr\ :sub:`(height/2)-1,1`
++      - ...
++      - Cb\ :sub:`(height/2)-1,62`
++      - Cr\ :sub:`(height/2)-1,62`
++      - Cb\ :sub:`(height/2)-1,63`
++      - Cr\ :sub:`(height/2)-1,63`
++    * - start + (bytesperline * 128):
++      - Y'\ :sub:`0,128`
++      - Y'\ :sub:`0,129`
++      - Y'\ :sub:`0,130`
++      - Y'\ :sub:`0,131`
++      - ...
++      - Y'\ :sub:`0,252`
++      - Y'\ :sub:`0,253`
++      - Y'\ :sub:`0,254`
++      - Y'\ :sub:`0,255`
++    * - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++      - ...
++
++V4L2_PIX_FMT_NV12_10_COL128 uses the same 128 byte column structure, but
++encodes 10-bit YUV.
++3 10-bit values are packed into 4 bytes as bits 9:0, 19:10, and 29:20, with
++bits 30 & 31 unused. For the luma plane, bits 9:0 are Y0, 19:10 are Y1, and
++29:20 are Y2. For the chroma plane the samples always come in pairs of Cr
++and Cb, so it needs to be considered 6 values packed in 8 bytes.
++
++Bit-packed representation.
++
++.. raw:: latex
++
++    \small
++
++.. tabularcolumns:: |p{1.2cm}||p{1.2cm}||p{1.2cm}||p{1.2cm}|p{3.2cm}|p{3.2cm}|
++
++.. flat-table::
++    :header-rows:  0
++    :stub-columns: 0
++    :widths: 8 8 8 8
++
++    * - Y'\ :sub:`00[7:0]`
++      - Y'\ :sub:`01[5:0] (bits 7--2)` Y'\ :sub:`00[9:8]`\ (bits 1--0)
++      - Y'\ :sub:`02[3:0] (bits 7--4)` Y'\ :sub:`01[9:6]`\ (bits 3--0)
++      - unused (bits 7--6)` Y'\ :sub:`02[9:4]`\ (bits 5--0)
++
++.. raw:: latex
++
++    \small
++
++.. tabularcolumns:: |p{1.2cm}||p{1.2cm}||p{1.2cm}||p{1.2cm}|p{3.2cm}|p{3.2cm}|
++
++.. flat-table::
++    :header-rows:  0
++    :stub-columns: 0
++    :widths: 12 12 12 12 12 12 12 12
++
++    * - Cb\ :sub:`00[7:0]`
++      - Cr\ :sub:`00[5:0]`\ (bits 7--2) Cb\ :sub:`00[9:8]`\ (bits 1--0)
++      - Cb\ :sub:`01[3:0]`\ (bits 7--4) Cr\ :sub:`00[9:6]`\ (bits 3--0)
++      - unused (bits 7--6) Cb\ :sub:`02[9:4]`\ (bits 5--0)
++      - Cr\ :sub:`01[7:0]`
++      - Cb\ :sub:`02[5:0]`\ (bits 7--2) Cr\ :sub:`01[9:8]`\ (bits 1--0)
++      - Cr\ :sub:`02[3:0]`\ (bits 7--4) Cb\ :sub:`02[9:6]`\ (bits 3--0)
++      - unused (bits 7--6) Cr\ :sub:`02[9:4]`\ (bits 5--0)
++
++.. raw:: latex
++
++    \normalsize
++
++
++
++
+--- a/Documentation/userspace-api/media/v4l/pixfmt-nv12.rst
++++ b/Documentation/userspace-api/media/v4l/pixfmt-nv12.rst
+@@ -3,9 +3,9 @@
+ .. _V4L2-PIX-FMT-NV12:
+ .. _V4L2-PIX-FMT-NV21:
+ 
+-******************************************************
+-V4L2_PIX_FMT_NV12 ('NV12'), V4L2_PIX_FMT_NV21 ('NV21')
+-******************************************************
++********************************************************************************
++V4L2_PIX_FMT_NV12 ('NV12'), V4L2_PIX_FMT_NV21 ('NV21'), V4L2_PIX_FMT_NV12_COL128
++********************************************************************************
+ 
+ 
+ V4L2_PIX_FMT_NV21
+@@ -31,6 +31,14 @@ with a Cr byte.
+ If the Y plane has pad bytes after each row, then the CbCr plane has as
+ many pad bytes after its rows.
+ 
++``V4L2_PIX_FMT_NV12_COL128`` is the tiled version of
++``V4L2_PIX_FMT_NV12`` with the image broken down into 128 pixel wide columns of
++Y followed by the associated combined CbCr plane.
++The normal bytesperline is effectively fixed at 128. However the format
++requires knowledge of the stride between columns, therefore the bytesperline
++value has been repurposed to denote the number of 128 byte long lines between
++the start of each column.
++
+ **Byte Order.**
+ Each cell is one byte.
+ 
+--- a/Documentation/userspace-api/media/v4l/yuv-formats.rst
++++ b/Documentation/userspace-api/media/v4l/yuv-formats.rst
+@@ -51,6 +51,7 @@ to brightness information.
+     pixfmt-nv12
+     pixfmt-nv12m
+     pixfmt-nv12mt
++    pixfmt-nv12-col128
+     pixfmt-nv16
+     pixfmt-nv16m
+     pixfmt-nv24
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1325,6 +1325,8 @@ static void v4l_fill_fmtdesc(struct v4l2
+ 	case V4L2_PIX_FMT_NV61M:	descr = "Y/CrCb 4:2:2 (N-C)"; break;
+ 	case V4L2_PIX_FMT_NV12MT:	descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
+ 	case V4L2_PIX_FMT_NV12MT_16X16:	descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
++	case V4L2_PIX_FMT_NV12_COL128:	descr = "Y/CbCr 4:2:0 (128b cols)"; break;
++	case V4L2_PIX_FMT_NV12_10_COL128: descr = "10-bit Y/CbCr 4:2:0 (128b cols)"; break;
+ 	case V4L2_PIX_FMT_YUV420M:	descr = "Planar YUV 4:2:0 (N-C)"; break;
+ 	case V4L2_PIX_FMT_YVU420M:	descr = "Planar YVU 4:2:0 (N-C)"; break;
+ 	case V4L2_PIX_FMT_YUV422M:	descr = "Planar YUV 4:2:2 (N-C)"; break;
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -745,6 +745,10 @@ struct v4l2_pix_format {
+ #define V4L2_PIX_FMT_INZI     v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
+ #define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */
+ #define V4L2_PIX_FMT_CNF4     v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */
++#define V4L2_PIX_FMT_NV12_COL128 v4l2_fourcc('N', 'C', '1', '2') /* 12  Y/CbCr 4:2:0 128 pixel wide column */
++#define V4L2_PIX_FMT_NV12_10_COL128 v4l2_fourcc('N', 'C', '3', '0')
++								/* Y/CbCr 4:2:0 10bpc, 3x10 packed as 4 bytes in
++								 * a 128 bytes / 96 pixel wide column */
+ 
+ /* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
+ #define V4L2_PIX_FMT_IPU3_SBGGR10	v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0199-media-dt-bindings-media-Add-binding-for-the-Raspberr.patch b/target/linux/bcm27xx/patches-5.10/950-0199-media-dt-bindings-media-Add-binding-for-the-Raspberr.patch
new file mode 100644
index 0000000000..c7bd718cfc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0199-media-dt-bindings-media-Add-binding-for-the-Raspberr.patch
@@ -0,0 +1,106 @@
+From 9b6a40e7b71b4f133e1151313b38ba187764a9e9 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 17 Mar 2020 10:53:16 +0000
+Subject: [PATCH] media: dt-bindings: media: Add binding for the
+ Raspberry PI HEVC decoder
+
+Adds a binding for the HEVC decoder found on the BCM2711 / Raspberry Pi 4.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bindings/media/rpivid_hevc.yaml           | 72 +++++++++++++++++++
+ MAINTAINERS                                   |  7 ++
+ 2 files changed, 79 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/rpivid_hevc.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/rpivid_hevc.yaml
+@@ -0,0 +1,72 @@
++# SPDX-License-Identifier: GPL-2.0-only
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/media/rpivid_hevc.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Raspberry Pi HEVC Decoder
++
++maintainers:
++  - Raspberry Pi <kernel-list@raspberrypi.com>
++
++description: |-
++  The Camera Adaptation Layer (CAL) is a key component for image capture
++  applications. The capture module provides the system interface and the
++  processing capability to connect CSI2 image-sensor modules to the
++  DRA72x device.
++
++properties:
++  compatible:
++    enum:
++      - raspberrypi,rpivid-vid-decoder
++
++  reg:
++    minItems: 2
++    items:
++      - description: The HEVC main register region
++      - description: The Interrupt controller register region
++
++  reg-names:
++    minItems: 2
++    items:
++      - const: hevc
++      - const: intc
++
++  interrupts:
++    maxItems: 1
++
++  clocks:
++    items:
++      - description: The HEVC block clock
++
++  clock-names:
++    items:
++      - const: hevc
++
++required:
++  - compatible
++  - reg
++  - reg-names
++  - interrupts
++  - clocks
++
++additionalProperties: false
++
++examples:
++  - |
++    #include <dt-bindings/interrupt-controller/arm-gic.h>
++
++    video-codec@7eb10000 {
++        compatible = "raspberrypi,rpivid-vid-decoder";
++        reg = <0x0 0x7eb10000 0x1000>,	/* INTC */
++              <0x0 0x7eb00000 0x10000>; /* HEVC */
++        reg-names = "intc",
++                    "hevc";
++
++        interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
++
++        clocks = <&clk 0>;
++        clock-names = "hevc";
++    };
++
++...
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3417,6 +3417,13 @@ N:	bcm113*
+ N:	bcm216*
+ N:	kona
+ 
++BROADCOM BCM2711 HEVC DECODER
++M:	Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
++L:	linux-media@vger.kernel.org
++S:	Maintained
++F:	Documentation/devicetree/bindings/media/rpivid_hevc.jaml
++F:	drivers/staging/media/rpivid
++
+ BROADCOM BCM2835 CAMERA DRIVER
+ M:	Dave Stevenson <dave.stevenson@raspberrypi.org>
+ L:	linux-media@vger.kernel.org
diff --git a/target/linux/bcm27xx/patches-5.10/950-0200-staging-media-Add-Raspberry-Pi-V4L2-H265-decoder.patch b/target/linux/bcm27xx/patches-5.10/950-0200-staging-media-Add-Raspberry-Pi-V4L2-H265-decoder.patch
new file mode 100644
index 0000000000..491c0b8c43
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0200-staging-media-Add-Raspberry-Pi-V4L2-H265-decoder.patch
@@ -0,0 +1,4341 @@
+From ea6d2c1bdad5a18f0d81ed4923a62f01180e3250 Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 5 Mar 2020 18:30:41 +0000
+Subject: [PATCH] staging: media: Add Raspberry Pi V4L2 H265 decoder
+
+This driver is for the HEVC/H265 decoder block on the Raspberry
+Pi 4, and conforms to the V4L2 stateless decoder API.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/Kconfig               |    2 +
+ drivers/staging/media/Makefile              |    1 +
+ drivers/staging/media/rpivid/Kconfig        |   16 +
+ drivers/staging/media/rpivid/Makefile       |    5 +
+ drivers/staging/media/rpivid/rpivid.c       |  432 ++++
+ drivers/staging/media/rpivid/rpivid.h       |  181 ++
+ drivers/staging/media/rpivid/rpivid_dec.c   |   79 +
+ drivers/staging/media/rpivid/rpivid_dec.h   |   19 +
+ drivers/staging/media/rpivid/rpivid_h265.c  | 2275 +++++++++++++++++++
+ drivers/staging/media/rpivid/rpivid_hw.c    |  321 +++
+ drivers/staging/media/rpivid/rpivid_hw.h    |  300 +++
+ drivers/staging/media/rpivid/rpivid_video.c |  593 +++++
+ drivers/staging/media/rpivid/rpivid_video.h |   30 +
+ 13 files changed, 4254 insertions(+)
+ create mode 100644 drivers/staging/media/rpivid/Kconfig
+ create mode 100644 drivers/staging/media/rpivid/Makefile
+ create mode 100644 drivers/staging/media/rpivid/rpivid.c
+ create mode 100644 drivers/staging/media/rpivid/rpivid.h
+ create mode 100644 drivers/staging/media/rpivid/rpivid_dec.c
+ create mode 100644 drivers/staging/media/rpivid/rpivid_dec.h
+ create mode 100644 drivers/staging/media/rpivid/rpivid_h265.c
+ create mode 100644 drivers/staging/media/rpivid/rpivid_hw.c
+ create mode 100644 drivers/staging/media/rpivid/rpivid_hw.h
+ create mode 100644 drivers/staging/media/rpivid/rpivid_video.c
+ create mode 100644 drivers/staging/media/rpivid/rpivid_video.h
+
+--- a/drivers/staging/media/Kconfig
++++ b/drivers/staging/media/Kconfig
+@@ -34,6 +34,8 @@ source "drivers/staging/media/omap4iss/K
+ 
+ source "drivers/staging/media/rkvdec/Kconfig"
+ 
++source "drivers/staging/media/rpivid/Kconfig"
++
+ source "drivers/staging/media/sunxi/Kconfig"
+ 
+ source "drivers/staging/media/tegra-vde/Kconfig"
+--- a/drivers/staging/media/Makefile
++++ b/drivers/staging/media/Makefile
+@@ -5,6 +5,7 @@ obj-$(CONFIG_VIDEO_IMX_MEDIA)	+= imx/
+ obj-$(CONFIG_VIDEO_MESON_VDEC)	+= meson/vdec/
+ obj-$(CONFIG_VIDEO_OMAP4)	+= omap4iss/
+ obj-$(CONFIG_VIDEO_ROCKCHIP_VDEC)	+= rkvdec/
++obj-$(CONFIG_VIDEO_RPIVID)	+= rpivid/
+ obj-$(CONFIG_VIDEO_SUNXI)	+= sunxi/
+ obj-$(CONFIG_VIDEO_TEGRA)	+= tegra-video/
+ obj-$(CONFIG_TEGRA_VDE)		+= tegra-vde/
+--- /dev/null
++++ b/drivers/staging/media/rpivid/Kconfig
+@@ -0,0 +1,16 @@
++# SPDX-License-Identifier: GPL-2.0
++
++config VIDEO_RPIVID
++	tristate "Rpi H265 driver"
++	depends on VIDEO_DEV && VIDEO_V4L2
++	depends on MEDIA_CONTROLLER
++	depends on OF
++	depends on MEDIA_CONTROLLER_REQUEST_API
++	select VIDEOBUF2_DMA_CONTIG
++	select V4L2_MEM2MEM_DEV
++	help
++	  Support for the Rpi H265 h/w decoder.
++
++	  To compile this driver as a module, choose M here: the module
++	  will be called rpivid-hevc.
++
+--- /dev/null
++++ b/drivers/staging/media/rpivid/Makefile
+@@ -0,0 +1,5 @@
++# SPDX-License-Identifier: GPL-2.0
++obj-$(CONFIG_VIDEO_RPIVID) += rpivid-hevc.o
++
++rpivid-hevc-y = rpivid.o rpivid_video.o rpivid_dec.o \
++		 rpivid_hw.o rpivid_h265.o
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid.c
+@@ -0,0 +1,432 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#include <linux/platform_device.h>
++#include <linux/module.h>
++#include <linux/of.h>
++
++#include <media/v4l2-device.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-mem2mem.h>
++
++#include "rpivid.h"
++#include "rpivid_video.h"
++#include "rpivid_hw.h"
++#include "rpivid_dec.h"
++
++/*
++ * Default /dev/videoN node number.
++ * Deliberately avoid the very low numbers as these are often taken by webcams
++ * etc, and simple apps tend to only go for /dev/video0.
++ */
++static int video_nr = 19;
++module_param(video_nr, int, 0644);
++MODULE_PARM_DESC(video_nr, "decoder video device number");
++
++static const struct rpivid_control rpivid_ctrls[] = {
++	{
++		.cfg = {
++			.id	= V4L2_CID_MPEG_VIDEO_HEVC_SPS,
++		},
++		.required	= true,
++	},
++	{
++		.cfg = {
++			.id	= V4L2_CID_MPEG_VIDEO_HEVC_PPS,
++		},
++		.required	= true,
++	},
++	{
++		.cfg = {
++			.id = V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX,
++		},
++		.required	= false,
++	},
++	{
++		.cfg = {
++			.id	= V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS,
++		},
++		.required	= true,
++	},
++	{
++		.cfg = {
++			.id	= V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE,
++			.max	= V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED,
++			.def	= V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED,
++		},
++		.required	= false,
++	},
++	{
++		.cfg = {
++			.id	= V4L2_CID_MPEG_VIDEO_HEVC_START_CODE,
++			.max	= V4L2_MPEG_VIDEO_HEVC_START_CODE_NONE,
++			.def	= V4L2_MPEG_VIDEO_HEVC_START_CODE_NONE,
++		},
++		.required	= false,
++	},
++};
++
++#define rpivid_ctrls_COUNT	ARRAY_SIZE(rpivid_ctrls)
++
++void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id)
++{
++	unsigned int i;
++
++	for (i = 0; ctx->ctrls[i]; i++)
++		if (ctx->ctrls[i]->id == id)
++			return ctx->ctrls[i]->p_cur.p;
++
++	return NULL;
++}
++
++static int rpivid_init_ctrls(struct rpivid_dev *dev, struct rpivid_ctx *ctx)
++{
++	struct v4l2_ctrl_handler *hdl = &ctx->hdl;
++	struct v4l2_ctrl *ctrl;
++	unsigned int ctrl_size;
++	unsigned int i;
++
++	v4l2_ctrl_handler_init(hdl, rpivid_ctrls_COUNT);
++	if (hdl->error) {
++		v4l2_err(&dev->v4l2_dev,
++			 "Failed to initialize control handler\n");
++		return hdl->error;
++	}
++
++	ctrl_size = sizeof(ctrl) * rpivid_ctrls_COUNT + 1;
++
++	ctx->ctrls = kzalloc(ctrl_size, GFP_KERNEL);
++	if (!ctx->ctrls)
++		return -ENOMEM;
++
++	for (i = 0; i < rpivid_ctrls_COUNT; i++) {
++		ctrl = v4l2_ctrl_new_custom(hdl, &rpivid_ctrls[i].cfg,
++					    NULL);
++		if (hdl->error) {
++			v4l2_err(&dev->v4l2_dev,
++				 "Failed to create new custom control id=%#x\n",
++				 rpivid_ctrls[i].cfg.id);
++
++			v4l2_ctrl_handler_free(hdl);
++			kfree(ctx->ctrls);
++			return hdl->error;
++		}
++
++		ctx->ctrls[i] = ctrl;
++	}
++
++	ctx->fh.ctrl_handler = hdl;
++	v4l2_ctrl_handler_setup(hdl);
++
++	return 0;
++}
++
++static int rpivid_request_validate(struct media_request *req)
++{
++	struct media_request_object *obj;
++	struct v4l2_ctrl_handler *parent_hdl, *hdl;
++	struct rpivid_ctx *ctx = NULL;
++	struct v4l2_ctrl *ctrl_test;
++	unsigned int count;
++	unsigned int i;
++
++	list_for_each_entry(obj, &req->objects, list) {
++		struct vb2_buffer *vb;
++
++		if (vb2_request_object_is_buffer(obj)) {
++			vb = container_of(obj, struct vb2_buffer, req_obj);
++			ctx = vb2_get_drv_priv(vb->vb2_queue);
++
++			break;
++		}
++	}
++
++	if (!ctx)
++		return -ENOENT;
++
++	count = vb2_request_buffer_cnt(req);
++	if (!count) {
++		v4l2_info(&ctx->dev->v4l2_dev,
++			  "No buffer was provided with the request\n");
++		return -ENOENT;
++	} else if (count > 1) {
++		v4l2_info(&ctx->dev->v4l2_dev,
++			  "More than one buffer was provided with the request\n");
++		return -EINVAL;
++	}
++
++	parent_hdl = &ctx->hdl;
++
++	hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl);
++	if (!hdl) {
++		v4l2_info(&ctx->dev->v4l2_dev, "Missing codec control(s)\n");
++		return -ENOENT;
++	}
++
++	for (i = 0; i < rpivid_ctrls_COUNT; i++) {
++		if (!rpivid_ctrls[i].required)
++			continue;
++
++		ctrl_test =
++			v4l2_ctrl_request_hdl_ctrl_find(hdl,
++							rpivid_ctrls[i].cfg.id);
++		if (!ctrl_test) {
++			v4l2_info(&ctx->dev->v4l2_dev,
++				  "Missing required codec control\n");
++			return -ENOENT;
++		}
++	}
++
++	v4l2_ctrl_request_hdl_put(hdl);
++
++	return vb2_request_validate(req);
++}
++
++static int rpivid_open(struct file *file)
++{
++	struct rpivid_dev *dev = video_drvdata(file);
++	struct rpivid_ctx *ctx = NULL;
++	int ret;
++
++	if (mutex_lock_interruptible(&dev->dev_mutex))
++		return -ERESTARTSYS;
++
++	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
++	if (!ctx) {
++		mutex_unlock(&dev->dev_mutex);
++		return -ENOMEM;
++	}
++
++	v4l2_fh_init(&ctx->fh, video_devdata(file));
++	file->private_data = &ctx->fh;
++	ctx->dev = dev;
++
++	ret = rpivid_init_ctrls(dev, ctx);
++	if (ret)
++		goto err_free;
++
++	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx,
++					    &rpivid_queue_init);
++	if (IS_ERR(ctx->fh.m2m_ctx)) {
++		ret = PTR_ERR(ctx->fh.m2m_ctx);
++		goto err_ctrls;
++	}
++
++	/* The only bit of format info that we can guess now is H265 src
++	 * Everything else we need more info for
++	 */
++	ctx->src_fmt.pixelformat = RPIVID_SRC_PIXELFORMAT_DEFAULT;
++	rpivid_prepare_src_format(&ctx->src_fmt);
++
++	v4l2_fh_add(&ctx->fh);
++
++	mutex_unlock(&dev->dev_mutex);
++
++	return 0;
++
++err_ctrls:
++	v4l2_ctrl_handler_free(&ctx->hdl);
++err_free:
++	kfree(ctx);
++	mutex_unlock(&dev->dev_mutex);
++
++	return ret;
++}
++
++static int rpivid_release(struct file *file)
++{
++	struct rpivid_dev *dev = video_drvdata(file);
++	struct rpivid_ctx *ctx = container_of(file->private_data,
++					      struct rpivid_ctx, fh);
++
++	mutex_lock(&dev->dev_mutex);
++
++	v4l2_fh_del(&ctx->fh);
++	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
++
++	v4l2_ctrl_handler_free(&ctx->hdl);
++	kfree(ctx->ctrls);
++
++	v4l2_fh_exit(&ctx->fh);
++
++	kfree(ctx);
++
++	mutex_unlock(&dev->dev_mutex);
++
++	return 0;
++}
++
++static const struct v4l2_file_operations rpivid_fops = {
++	.owner		= THIS_MODULE,
++	.open		= rpivid_open,
++	.release	= rpivid_release,
++	.poll		= v4l2_m2m_fop_poll,
++	.unlocked_ioctl	= video_ioctl2,
++	.mmap		= v4l2_m2m_fop_mmap,
++};
++
++static const struct video_device rpivid_video_device = {
++	.name		= RPIVID_NAME,
++	.vfl_dir	= VFL_DIR_M2M,
++	.fops		= &rpivid_fops,
++	.ioctl_ops	= &rpivid_ioctl_ops,
++	.minor		= -1,
++	.release	= video_device_release_empty,
++	.device_caps	= V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
++};
++
++static const struct v4l2_m2m_ops rpivid_m2m_ops = {
++	.device_run	= rpivid_device_run,
++};
++
++static const struct media_device_ops rpivid_m2m_media_ops = {
++	.req_validate	= rpivid_request_validate,
++	.req_queue	= v4l2_m2m_request_queue,
++};
++
++static int rpivid_probe(struct platform_device *pdev)
++{
++	struct rpivid_dev *dev;
++	struct video_device *vfd;
++	int ret;
++
++	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
++	if (!dev)
++		return -ENOMEM;
++
++	dev->vfd = rpivid_video_device;
++	dev->dev = &pdev->dev;
++	dev->pdev = pdev;
++
++	ret = 0;
++	ret = rpivid_hw_probe(dev);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to probe hardware\n");
++		return ret;
++	}
++
++	dev->dec_ops = &rpivid_dec_ops_h265;
++
++	mutex_init(&dev->dev_mutex);
++
++	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to register V4L2 device\n");
++		return ret;
++	}
++
++	vfd = &dev->vfd;
++	vfd->lock = &dev->dev_mutex;
++	vfd->v4l2_dev = &dev->v4l2_dev;
++
++	snprintf(vfd->name, sizeof(vfd->name), "%s", rpivid_video_device.name);
++	video_set_drvdata(vfd, dev);
++
++	dev->m2m_dev = v4l2_m2m_init(&rpivid_m2m_ops);
++	if (IS_ERR(dev->m2m_dev)) {
++		v4l2_err(&dev->v4l2_dev,
++			 "Failed to initialize V4L2 M2M device\n");
++		ret = PTR_ERR(dev->m2m_dev);
++
++		goto err_v4l2;
++	}
++
++	dev->mdev.dev = &pdev->dev;
++	strscpy(dev->mdev.model, RPIVID_NAME, sizeof(dev->mdev.model));
++	strscpy(dev->mdev.bus_info, "platform:" RPIVID_NAME,
++		sizeof(dev->mdev.bus_info));
++
++	media_device_init(&dev->mdev);
++	dev->mdev.ops = &rpivid_m2m_media_ops;
++	dev->v4l2_dev.mdev = &dev->mdev;
++
++	ret = video_register_device(vfd, VFL_TYPE_VIDEO, video_nr);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
++		goto err_m2m;
++	}
++
++	v4l2_info(&dev->v4l2_dev,
++		  "Device registered as /dev/video%d\n", vfd->num);
++
++	ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd,
++						 MEDIA_ENT_F_PROC_VIDEO_DECODER);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev,
++			 "Failed to initialize V4L2 M2M media controller\n");
++		goto err_video;
++	}
++
++	ret = media_device_register(&dev->mdev);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev, "Failed to register media device\n");
++		goto err_m2m_mc;
++	}
++
++	platform_set_drvdata(pdev, dev);
++
++	return 0;
++
++err_m2m_mc:
++	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
++err_video:
++	video_unregister_device(&dev->vfd);
++err_m2m:
++	v4l2_m2m_release(dev->m2m_dev);
++err_v4l2:
++	v4l2_device_unregister(&dev->v4l2_dev);
++
++	return ret;
++}
++
++static int rpivid_remove(struct platform_device *pdev)
++{
++	struct rpivid_dev *dev = platform_get_drvdata(pdev);
++
++	if (media_devnode_is_registered(dev->mdev.devnode)) {
++		media_device_unregister(&dev->mdev);
++		v4l2_m2m_unregister_media_controller(dev->m2m_dev);
++		media_device_cleanup(&dev->mdev);
++	}
++
++	v4l2_m2m_release(dev->m2m_dev);
++	video_unregister_device(&dev->vfd);
++	v4l2_device_unregister(&dev->v4l2_dev);
++
++	rpivid_hw_remove(dev);
++
++	return 0;
++}
++
++static const struct of_device_id rpivid_dt_match[] = {
++	{
++		.compatible = "raspberrypi,rpivid-vid-decoder",
++	},
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, rpivid_dt_match);
++
++static struct platform_driver rpivid_driver = {
++	.probe		= rpivid_probe,
++	.remove		= rpivid_remove,
++	.driver		= {
++		.name = RPIVID_NAME,
++		.of_match_table	= of_match_ptr(rpivid_dt_match),
++	},
++};
++module_platform_driver(rpivid_driver);
++
++MODULE_LICENSE("GPL v2");
++MODULE_AUTHOR("John Cox <jc@kynesim.co.uk>");
++MODULE_DESCRIPTION("Raspberry Pi HEVC V4L2 driver");
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -0,0 +1,181 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#ifndef _RPIVID_H_
++#define _RPIVID_H_
++
++#include <linux/clk.h>
++#include <linux/platform_device.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-mem2mem.h>
++#include <media/videobuf2-v4l2.h>
++#include <media/videobuf2-dma-contig.h>
++
++#define OPT_DEBUG_POLL_IRQ  0
++
++#define RPIVID_NAME			"rpivid"
++
++#define RPIVID_CAPABILITY_UNTILED	BIT(0)
++#define RPIVID_CAPABILITY_H265_DEC	BIT(1)
++
++#define RPIVID_QUIRK_NO_DMA_OFFSET	BIT(0)
++
++#define RPIVID_SRC_PIXELFORMAT_DEFAULT	V4L2_PIX_FMT_HEVC_SLICE
++
++enum rpivid_irq_status {
++	RPIVID_IRQ_NONE,
++	RPIVID_IRQ_ERROR,
++	RPIVID_IRQ_OK,
++};
++
++struct rpivid_control {
++	struct v4l2_ctrl_config cfg;
++	unsigned char		required:1;
++};
++
++struct rpivid_h265_run {
++	const struct v4l2_ctrl_hevc_sps			*sps;
++	const struct v4l2_ctrl_hevc_pps			*pps;
++	const struct v4l2_ctrl_hevc_slice_params	*slice_params;
++	const struct v4l2_ctrl_hevc_scaling_matrix	*scaling_matrix;
++};
++
++struct rpivid_run {
++	struct vb2_v4l2_buffer	*src;
++	struct vb2_v4l2_buffer	*dst;
++
++	struct rpivid_h265_run	h265;
++};
++
++struct rpivid_buffer {
++	struct v4l2_m2m_buffer          m2m_buf;
++};
++
++struct rpivid_dec_state;
++struct rpivid_dec_env;
++#define RPIVID_DEC_ENV_COUNT 3
++
++struct rpivid_gptr {
++	size_t size;
++	__u8 *ptr;
++	dma_addr_t addr;
++	unsigned long attrs;
++};
++
++struct rpivid_dev;
++typedef void (*rpivid_irq_callback)(struct rpivid_dev *dev, void *ctx);
++
++struct rpivid_q_aux;
++#define RPIVID_AUX_ENT_COUNT VB2_MAX_FRAME
++
++#define RPIVID_P2BUF_COUNT 2
++
++struct rpivid_ctx {
++	struct v4l2_fh			fh;
++	struct rpivid_dev		*dev;
++
++	struct v4l2_pix_format		src_fmt;
++	struct v4l2_pix_format		dst_fmt;
++	int dst_fmt_set;
++
++	struct v4l2_ctrl_handler	hdl;
++	struct v4l2_ctrl		**ctrls;
++
++	/* Decode state - stateless decoder my *** */
++	/* state contains stuff that is only needed in phase0
++	 * it could be held in dec_env but that would be wasteful
++	 */
++	struct rpivid_dec_state *state;
++	struct rpivid_dec_env *dec0;
++
++	/* Spinlock protecting dec_free */
++	spinlock_t dec_lock;
++	struct rpivid_dec_env *dec_free;
++
++	struct rpivid_dec_env *dec_pool;
++
++	/* Some of these should be in dev */
++	struct rpivid_gptr bitbufs[1];  /* Will be 2 */
++	struct rpivid_gptr cmdbufs[1];  /* Will be 2 */
++	unsigned int p2idx;
++	atomic_t p2out;
++	struct rpivid_gptr pu_bufs[RPIVID_P2BUF_COUNT];
++	struct rpivid_gptr coeff_bufs[RPIVID_P2BUF_COUNT];
++
++	/* Spinlock protecting aux_free */
++	spinlock_t aux_lock;
++	struct rpivid_q_aux *aux_free;
++
++	struct rpivid_q_aux *aux_ents[RPIVID_AUX_ENT_COUNT];
++
++	unsigned int colmv_stride;
++	unsigned int colmv_picsize;
++};
++
++struct rpivid_dec_ops {
++	void (*setup)(struct rpivid_ctx *ctx, struct rpivid_run *run);
++	int (*start)(struct rpivid_ctx *ctx);
++	void (*stop)(struct rpivid_ctx *ctx);
++	void (*trigger)(struct rpivid_ctx *ctx);
++};
++
++struct rpivid_variant {
++	unsigned int	capabilities;
++	unsigned int	quirks;
++	unsigned int	mod_rate;
++};
++
++struct rpivid_hw_irq_ent;
++
++struct rpivid_hw_irq_ctrl {
++	/* Spinlock protecting claim and tail */
++	spinlock_t lock;
++	struct rpivid_hw_irq_ent *claim;
++	struct rpivid_hw_irq_ent *tail;
++
++	/* Ent for pending irq - also prevents sched */
++	struct rpivid_hw_irq_ent *irq;
++	/* Non-zero => do not start a new job - outer layer sched pending */
++	int no_sched;
++	/* Thread CB requested */
++	bool thread_reqed;
++};
++
++struct rpivid_dev {
++	struct v4l2_device	v4l2_dev;
++	struct video_device	vfd;
++	struct media_device	mdev;
++	struct media_pad	pad[2];
++	struct platform_device	*pdev;
++	struct device		*dev;
++	struct v4l2_m2m_dev	*m2m_dev;
++	struct rpivid_dec_ops	*dec_ops;
++
++	/* Device file mutex */
++	struct mutex		dev_mutex;
++
++	void __iomem		*base_irq;
++	void __iomem		*base_h265;
++
++	struct clk		*clock;
++
++	struct rpivid_hw_irq_ctrl ic_active1;
++	struct rpivid_hw_irq_ctrl ic_active2;
++};
++
++extern struct rpivid_dec_ops rpivid_dec_ops_h265;
++
++void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id);
++
++#endif
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_dec.c
+@@ -0,0 +1,79 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#include <media/v4l2-device.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-mem2mem.h>
++
++#include "rpivid.h"
++#include "rpivid_dec.h"
++
++void rpivid_device_run(void *priv)
++{
++	struct rpivid_ctx *ctx = priv;
++	struct rpivid_dev *dev = ctx->dev;
++	struct rpivid_run run = {};
++	struct media_request *src_req;
++
++	run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
++	run.dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
++
++	if (!run.src || !run.dst) {
++		v4l2_err(&dev->v4l2_dev, "%s: Missing buffer: src=%p, dst=%p\n",
++			 __func__, run.src, run.dst);
++		/* We are stuffed - this probably won't dig us out of our
++		 * current situation but it is better than nothing
++		 */
++		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++						 VB2_BUF_STATE_ERROR);
++		return;
++	}
++
++	/* Apply request(s) controls if needed. */
++	src_req = run.src->vb2_buf.req_obj.req;
++
++	if (src_req)
++		v4l2_ctrl_request_setup(src_req, &ctx->hdl);
++
++	switch (ctx->src_fmt.pixelformat) {
++	case V4L2_PIX_FMT_HEVC_SLICE:
++		run.h265.sps =
++			rpivid_find_control_data(ctx,
++						 V4L2_CID_MPEG_VIDEO_HEVC_SPS);
++		run.h265.pps =
++			rpivid_find_control_data(ctx,
++						 V4L2_CID_MPEG_VIDEO_HEVC_PPS);
++		run.h265.slice_params =
++			rpivid_find_control_data(ctx,
++						 V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS);
++		run.h265.scaling_matrix =
++			rpivid_find_control_data(ctx,
++						 V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX);
++		break;
++
++	default:
++		break;
++	}
++
++	v4l2_m2m_buf_copy_metadata(run.src, run.dst, true);
++
++	dev->dec_ops->setup(ctx, &run);
++
++	/* Complete request(s) controls if needed. */
++
++	if (src_req)
++		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
++
++	dev->dec_ops->trigger(ctx);
++}
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_dec.h
+@@ -0,0 +1,19 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#ifndef _RPIVID_DEC_H_
++#define _RPIVID_DEC_H_
++
++void rpivid_device_run(void *priv);
++
++#endif
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -0,0 +1,2275 @@
++// SPDX-License-Identifier: GPL-2.0-or-later
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#include <linux/delay.h>
++#include <linux/types.h>
++
++#include <media/videobuf2-dma-contig.h>
++
++#include "rpivid.h"
++#include "rpivid_hw.h"
++
++#define DEBUG_TRACE_P1_CMD 0
++#define DEBUG_TRACE_EXECUTION 0
++
++#if DEBUG_TRACE_EXECUTION
++#define xtrace_in(dev_, de_)\
++	v4l2_info(&(dev_)->v4l2_dev, "%s[%d]: in\n",   __func__,\
++		  (de_) == NULL ? -1 : (de_)->decode_order)
++#define xtrace_ok(dev_, de_)\
++	v4l2_info(&(dev_)->v4l2_dev, "%s[%d]: ok\n",   __func__,\
++		  (de_) == NULL ? -1 : (de_)->decode_order)
++#define xtrace_fin(dev_, de_)\
++	v4l2_info(&(dev_)->v4l2_dev, "%s[%d]: finish\n", __func__,\
++		  (de_) == NULL ? -1 : (de_)->decode_order)
++#define xtrace_fail(dev_, de_)\
++	v4l2_info(&(dev_)->v4l2_dev, "%s[%d]: FAIL\n", __func__,\
++		  (de_) == NULL ? -1 : (de_)->decode_order)
++#else
++#define xtrace_in(dev_, de_)
++#define xtrace_ok(dev_, de_)
++#define xtrace_fin(dev_, de_)
++#define xtrace_fail(dev_, de_)
++#endif
++
++enum hevc_slice_type {
++	HEVC_SLICE_B = 0,
++	HEVC_SLICE_P = 1,
++	HEVC_SLICE_I = 2,
++};
++
++enum hevc_layer { L0 = 0, L1 = 1 };
++
++static int gptr_alloc(struct rpivid_dev *const dev, struct rpivid_gptr *gptr,
++		      size_t size, unsigned long attrs)
++{
++	gptr->size = size;
++	gptr->attrs = attrs;
++	gptr->addr = 0;
++	gptr->ptr = dma_alloc_attrs(dev->dev, gptr->size, &gptr->addr,
++				    GFP_KERNEL, gptr->attrs);
++	return !gptr->ptr ? -ENOMEM : 0;
++}
++
++static void gptr_free(struct rpivid_dev *const dev,
++		      struct rpivid_gptr *const gptr)
++{
++	if (gptr->ptr)
++		dma_free_attrs(dev->dev, gptr->size, gptr->ptr, gptr->addr,
++			       gptr->attrs);
++	gptr->size = 0;
++	gptr->ptr = NULL;
++	gptr->addr = 0;
++	gptr->attrs = 0;
++}
++
++/* Realloc but do not copy */
++static int gptr_realloc_new(struct rpivid_dev * const dev,
++			    struct rpivid_gptr * const gptr, size_t size)
++{
++	if (size == gptr->size)
++		return 0;
++
++	if (gptr->ptr)
++		dma_free_attrs(dev->dev, gptr->size, gptr->ptr,
++			       gptr->addr, gptr->attrs);
++
++	gptr->addr = 0;
++	gptr->size = size;
++	gptr->ptr = dma_alloc_attrs(dev->dev, gptr->size,
++				    &gptr->addr, GFP_KERNEL, gptr->attrs);
++	return gptr->ptr ? 0 : -ENOMEM;
++}
++
++/* floor(log2(x)) */
++static unsigned int log2_size(size_t x)
++{
++	unsigned int n = 0;
++
++	if (x & ~0xffff) {
++		n += 16;
++		x >>= 16;
++	}
++	if (x & ~0xff) {
++		n += 8;
++		x >>= 8;
++	}
++	if (x & ~0xf) {
++		n += 4;
++		x >>= 4;
++	}
++	if (x & ~3) {
++		n += 2;
++		x >>= 2;
++	}
++	return (x & ~1) ? n + 1 : n;
++}
++
++static size_t round_up_size(const size_t x)
++{
++	/* Admit no size < 256 */
++	const unsigned int n = x < 256 ? 8 : log2_size(x) - 1;
++
++	return x >= (3 << n) ? 4 << n : (3 << n);
++}
++
++static size_t next_size(const size_t x)
++{
++	return round_up_size(x + 1);
++}
++
++#define NUM_SCALING_FACTORS 4064 /* Not a typo = 0xbe0 + 0x400 */
++
++#define AXI_BASE64 0
++
++#define PROB_BACKUP ((20 << 12) + (20 << 6) + (0 << 0))
++#define PROB_RELOAD ((20 << 12) + (20 << 0) + (0 << 6))
++
++#define HEVC_MAX_REFS V4L2_HEVC_DPB_ENTRIES_NUM_MAX
++
++//////////////////////////////////////////////////////////////////////////////
++
++struct rpi_cmd {
++	u32 addr;
++	u32 data;
++} __packed;
++
++struct rpivid_q_aux {
++	unsigned int refcount;
++	unsigned int q_index;
++	struct rpivid_q_aux *next;
++	struct rpivid_gptr col;
++};
++
++//////////////////////////////////////////////////////////////////////////////
++
++enum rpivid_decode_state {
++	RPIVID_DECODE_SLICE_START,
++	RPIVID_DECODE_SLICE_CONTINUE,
++	RPIVID_DECODE_ERROR_CONTINUE,
++	RPIVID_DECODE_ERROR_DONE,
++	RPIVID_DECODE_PHASE1,
++	RPIVID_DECODE_END,
++};
++
++struct rpivid_dec_env {
++	struct rpivid_ctx *ctx;
++	struct rpivid_dec_env *next;
++
++	enum rpivid_decode_state state;
++	unsigned int decode_order;
++	int p1_status;		/* P1 status - what to realloc */
++
++	struct rpivid_dec_env *phase_wait_q_next;
++
++	struct rpi_cmd *cmd_fifo;
++	unsigned int cmd_len, cmd_max;
++	unsigned int num_slice_msgs;
++	unsigned int pic_width_in_ctbs_y;
++	unsigned int pic_height_in_ctbs_y;
++	unsigned int dpbno_col;
++	u32 reg_slicestart;
++	int collocated_from_l0_flag;
++	unsigned int wpp_entry_x;
++	unsigned int wpp_entry_y;
++
++	u32 rpi_config2;
++	u32 rpi_framesize;
++	u32 rpi_currpoc;
++
++	struct vb2_v4l2_buffer *frame_buf; // Detached dest buffer
++	unsigned int frame_c_offset;
++	unsigned int frame_stride;
++	dma_addr_t frame_addr;
++	dma_addr_t ref_addrs[16];
++	struct rpivid_q_aux *frame_aux;
++	struct rpivid_q_aux *col_aux;
++
++	dma_addr_t pu_base_vc;
++	dma_addr_t coeff_base_vc;
++	u32 pu_stride;
++	u32 coeff_stride;
++
++	struct rpivid_gptr *bit_copy_gptr;
++	size_t bit_copy_len;
++	struct rpivid_gptr *cmd_copy_gptr;
++
++	u16 slice_msgs[2 * HEVC_MAX_REFS * 8 + 3];
++	u8 scaling_factors[NUM_SCALING_FACTORS];
++
++	struct rpivid_hw_irq_ent irq_ent;
++};
++
++#define member_size(type, member) sizeof(((type *)0)->member)
++
++struct rpivid_dec_state {
++	struct v4l2_ctrl_hevc_sps sps;
++	struct v4l2_ctrl_hevc_pps pps;
++
++	// Helper vars & tables derived from sps/pps
++	unsigned int log2_ctb_size; /* log2 width of a CTB */
++	unsigned int ctb_width; /* Width in CTBs */
++	unsigned int ctb_height; /* Height in CTBs */
++	unsigned int ctb_size; /* Pic area in CTBs */
++	unsigned int num_tile_columns;
++	unsigned int num_tile_rows;
++	u8 column_width[member_size(struct v4l2_ctrl_hevc_pps,
++				    column_width_minus1)];
++	u8 row_height[member_size(struct v4l2_ctrl_hevc_pps,
++				  row_height_minus1)];
++
++	int *col_bd;
++	int *row_bd;
++	int *ctb_addr_rs_to_ts;
++	int *ctb_addr_ts_to_rs;
++	int *tile_id;
++
++	// Aux starage for DPB
++	// Hold refs
++	struct rpivid_q_aux *ref_aux[HEVC_MAX_REFS];
++	struct rpivid_q_aux *frame_aux;
++
++	// Slice vars
++	unsigned int slice_idx;
++	bool frame_end;
++	bool slice_temporal_mvp;  /* Slice flag but constant for frame */
++
++	// Temp vars per run - don't actually need to persist
++	u8 *src_buf;
++	dma_addr_t src_addr;
++	const struct v4l2_ctrl_hevc_slice_params *sh;
++	unsigned int nb_refs[2];
++	unsigned int slice_qp;
++	unsigned int max_num_merge_cand; // 0 if I-slice
++	bool dependent_slice_segment_flag;
++};
++
++static inline int clip_int(const int x, const int lo, const int hi)
++{
++	return x < lo ? lo : x > hi ? hi : x;
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Phase 1 command and bit FIFOs
++
++#if DEBUG_TRACE_P1_CMD
++static int p1_z;
++#endif
++
++// ???? u16 addr - put in u32
++static int p1_apb_write(struct rpivid_dec_env *const de, const u16 addr,
++			const u32 data)
++{
++	if (de->cmd_len == de->cmd_max)
++		de->cmd_fifo =
++			krealloc(de->cmd_fifo,
++				 (de->cmd_max *= 2) * sizeof(struct rpi_cmd),
++				 GFP_KERNEL);
++	de->cmd_fifo[de->cmd_len].addr = addr;
++	de->cmd_fifo[de->cmd_len].data = data;
++
++#if DEBUG_TRACE_P1_CMD
++	if (++p1_z < 256) {
++		v4l2_info(&de->ctx->dev->v4l2_dev, "[%02x] %x %x\n",
++			  de->cmd_len, addr, data);
++	}
++#endif
++
++	return de->cmd_len++;
++}
++
++static int ctb_to_tile(unsigned int ctb, unsigned int *bd, int num)
++{
++	int i;
++
++	for (i = 1; ctb >= bd[i]; i++)
++		; // bd[] has num+1 elements; bd[0]=0;
++	return i - 1;
++}
++
++static int ctb_to_slice_w_h(unsigned int ctb, int ctb_size, int width,
++			    unsigned int *bd, int num)
++{
++	if (ctb < bd[num - 1])
++		return ctb_size;
++	else if (width % ctb_size)
++		return width % ctb_size;
++	else
++		return ctb_size;
++}
++
++static void aux_q_free(struct rpivid_ctx *const ctx,
++		       struct rpivid_q_aux *const aq)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++
++	gptr_free(dev, &aq->col);
++	kfree(aq);
++}
++
++static struct rpivid_q_aux *aux_q_alloc(struct rpivid_ctx *const ctx)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++	struct rpivid_q_aux *const aq = kzalloc(sizeof(*aq), GFP_KERNEL);
++
++	if (!aq)
++		return NULL;
++
++	aq->refcount = 1;
++	if (gptr_alloc(dev, &aq->col, ctx->colmv_picsize,
++		       DMA_ATTR_FORCE_CONTIGUOUS | DMA_ATTR_NO_KERNEL_MAPPING))
++		goto fail;
++
++	return aq;
++
++fail:
++	kfree(aq);
++	return NULL;
++}
++
++static struct rpivid_q_aux *aux_q_new(struct rpivid_ctx *const ctx,
++				      const unsigned int q_index)
++{
++	struct rpivid_q_aux *aq;
++	unsigned long lockflags;
++
++	spin_lock_irqsave(&ctx->aux_lock, lockflags);
++	aq = ctx->aux_free;
++	if (aq) {
++		ctx->aux_free = aq->next;
++		aq->next = NULL;
++		aq->refcount = 1;
++	}
++	spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
++
++	if (!aq) {
++		aq = aux_q_alloc(ctx);
++		if (!aq)
++			return NULL;
++	}
++
++	aq->q_index = q_index;
++	ctx->aux_ents[q_index] = aq;
++	return aq;
++}
++
++static struct rpivid_q_aux *aux_q_ref(struct rpivid_ctx *const ctx,
++				      struct rpivid_q_aux *const aq)
++{
++	if (aq) {
++		unsigned long lockflags;
++
++		spin_lock_irqsave(&ctx->aux_lock, lockflags);
++
++		++aq->refcount;
++
++		spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
++	}
++	return aq;
++}
++
++static void aux_q_release(struct rpivid_ctx *const ctx,
++			  struct rpivid_q_aux **const paq)
++{
++	struct rpivid_q_aux *const aq = *paq;
++	*paq = NULL;
++
++	if (aq) {
++		unsigned long lockflags;
++
++		spin_lock_irqsave(&ctx->aux_lock, lockflags);
++
++		if (--aq->refcount == 0) {
++			aq->next = ctx->aux_free;
++			ctx->aux_free = aq;
++			ctx->aux_ents[aq->q_index] = NULL;
++		}
++
++		spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
++	}
++}
++
++static void aux_q_init(struct rpivid_ctx *const ctx)
++{
++	spin_lock_init(&ctx->aux_lock);
++	ctx->aux_free = NULL;
++}
++
++static void aux_q_uninit(struct rpivid_ctx *const ctx)
++{
++	struct rpivid_q_aux *aq;
++
++	ctx->colmv_picsize = 0;
++	ctx->colmv_stride = 0;
++	while ((aq = ctx->aux_free) != NULL) {
++		ctx->aux_free = aq->next;
++		aux_q_free(ctx, aq);
++	}
++}
++
++//////////////////////////////////////////////////////////////////////////////
++
++/*
++ * Initialisation process for context variables (CABAC init)
++ * see H.265 9.3.2.2
++ *
++ * N.B. If comparing with FFmpeg note that this h/w uses slightly different
++ * offsets to FFmpegs array
++ */
++
++/* Actual number of values */
++#define RPI_PROB_VALS 154U
++/* Rounded up as we copy words */
++#define RPI_PROB_ARRAY_SIZE ((154 + 3) & ~3)
++
++/* Initialiser values - see tables H.265 9-4 through 9-42 */
++static const u8 prob_init[3][156] = {
++	{
++		153, 200, 139, 141, 157, 154, 154, 154, 154, 154, 184, 154, 154,
++		154, 184, 63,  154, 154, 154, 154, 154, 154, 154, 154, 154, 154,
++		154, 154, 154, 153, 138, 138, 111, 141, 94,  138, 182, 154, 154,
++		154, 140, 92,  137, 138, 140, 152, 138, 139, 153, 74,  149, 92,
++		139, 107, 122, 152, 140, 179, 166, 182, 140, 227, 122, 197, 110,
++		110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111,
++		79,  108, 123, 63,  110, 110, 124, 125, 140, 153, 125, 127, 140,
++		109, 111, 143, 127, 111, 79,  108, 123, 63,  91,  171, 134, 141,
++		138, 153, 136, 167, 152, 152, 139, 139, 111, 111, 125, 110, 110,
++		94,  124, 108, 124, 107, 125, 141, 179, 153, 125, 107, 125, 141,
++		179, 153, 125, 107, 125, 141, 179, 153, 125, 140, 139, 182, 182,
++		152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111, 0,   0,
++	},
++	{
++		153, 185, 107, 139, 126, 197, 185, 201, 154, 149, 154, 139, 154,
++		154, 154, 152, 110, 122, 95,  79,  63,  31,  31,  153, 153, 168,
++		140, 198, 79,  124, 138, 94,  153, 111, 149, 107, 167, 154, 154,
++		154, 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136,
++		153, 121, 136, 137, 169, 194, 166, 167, 154, 167, 137, 182, 125,
++		110, 94,  110, 95,  79,  125, 111, 110, 78,  110, 111, 111, 95,
++		94,  108, 123, 108, 125, 110, 94,  110, 95,  79,  125, 111, 110,
++		78,  110, 111, 111, 95,  94,  108, 123, 108, 121, 140, 61,  154,
++		107, 167, 91,  122, 107, 167, 139, 139, 155, 154, 139, 153, 139,
++		123, 123, 63,  153, 166, 183, 140, 136, 153, 154, 166, 183, 140,
++		136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 153, 123, 123,
++		107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140, 0,   0,
++	},
++	{
++		153, 160, 107, 139, 126, 197, 185, 201, 154, 134, 154, 139, 154,
++		154, 183, 152, 154, 137, 95,  79,  63,  31,  31,  153, 153, 168,
++		169, 198, 79,  224, 167, 122, 153, 111, 149, 92,  167, 154, 154,
++		154, 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136,
++		153, 121, 136, 122, 169, 208, 166, 167, 154, 152, 167, 182, 125,
++		110, 124, 110, 95,  94,  125, 111, 111, 79,  125, 126, 111, 111,
++		79,  108, 123, 93,  125, 110, 124, 110, 95,  94,  125, 111, 111,
++		79,  125, 126, 111, 111, 79,  108, 123, 93,  121, 140, 61,  154,
++		107, 167, 91,  107, 107, 167, 139, 139, 170, 154, 139, 153, 139,
++		123, 123, 63,  124, 166, 183, 140, 136, 153, 154, 166, 183, 140,
++		136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 153, 138, 138,
++		122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140, 0,   0,
++	},
++};
++
++static void write_prob(struct rpivid_dec_env *const de,
++		       const struct rpivid_dec_state *const s)
++{
++	u8 dst[RPI_PROB_ARRAY_SIZE];
++
++	const unsigned int init_type =
++		((s->sh->flags & V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT) != 0 &&
++		 s->sh->slice_type != HEVC_SLICE_I) ?
++			s->sh->slice_type + 1 :
++			2 - s->sh->slice_type;
++	const u8 *p = prob_init[init_type];
++	const int q = clip_int(s->slice_qp, 0, 51);
++	unsigned int i;
++
++	for (i = 0; i < RPI_PROB_VALS; i++) {
++		int init_value = p[i];
++		int m = (init_value >> 4) * 5 - 45;
++		int n = ((init_value & 15) << 3) - 16;
++		int pre = 2 * (((m * q) >> 4) + n) - 127;
++
++		pre ^= pre >> 31;
++		if (pre > 124)
++			pre = 124 + (pre & 1);
++		dst[i] = pre;
++	}
++	for (i = RPI_PROB_VALS; i != RPI_PROB_ARRAY_SIZE; ++i)
++		dst[i] = 0;
++
++	for (i = 0; i < RPI_PROB_ARRAY_SIZE; i += 4)
++		p1_apb_write(de, 0x1000 + i,
++			     dst[i] + (dst[i + 1] << 8) + (dst[i + 2] << 16) +
++				     (dst[i + 3] << 24));
++}
++
++static void write_scaling_factors(struct rpivid_dec_env *const de)
++{
++	int i;
++	const u8 *p = (u8 *)de->scaling_factors;
++
++	for (i = 0; i < NUM_SCALING_FACTORS; i += 4, p += 4)
++		p1_apb_write(de, 0x2000 + i,
++			     p[0] + (p[1] << 8) + (p[2] << 16) + (p[3] << 24));
++}
++
++static inline __u32 dma_to_axi_addr(dma_addr_t a)
++{
++	return (__u32)(a >> 6);
++}
++
++static void write_bitstream(struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s)
++{
++	// Note that FFmpeg removes emulation prevention bytes, so this is
++	// matched in the configuration here.
++	// Whether that is the correct behaviour or not is not clear in the
++	// spec.
++	const int rpi_use_emu = 1;
++	unsigned int offset = s->sh->data_bit_offset / 8 + 1;
++	const unsigned int len = (s->sh->bit_size + 7) / 8 - offset;
++	dma_addr_t addr;
++
++	if (s->src_addr != 0) {
++		addr = s->src_addr + offset;
++	} else {
++		memcpy(de->bit_copy_gptr->ptr + de->bit_copy_len,
++		       s->src_buf + offset, len);
++		addr = de->bit_copy_gptr->addr + de->bit_copy_len;
++		de->bit_copy_len += (len + 63) & ~63;
++	}
++	offset = addr & 63;
++
++	p1_apb_write(de, RPI_BFBASE, dma_to_axi_addr(addr));
++	p1_apb_write(de, RPI_BFNUM, len);
++	p1_apb_write(de, RPI_BFCONTROL, offset + (1 << 7)); // Stop
++	p1_apb_write(de, RPI_BFCONTROL, offset + (rpi_use_emu << 6));
++}
++
++//////////////////////////////////////////////////////////////////////////////
++
++static void write_slice(struct rpivid_dec_env *const de,
++			const struct rpivid_dec_state *const s,
++			const unsigned int slice_w,
++			const unsigned int slice_h)
++{
++	u32 u32 = (s->sh->slice_type << 12) +
++		  (((s->sh->flags &
++		     V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA) != 0)
++		   << 14) +
++		  (((s->sh->flags &
++		     V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA) != 0)
++		   << 15) +
++		  (slice_w << 17) + (slice_h << 24);
++
++	u32 |= (s->max_num_merge_cand << 0) + (s->nb_refs[L0] << 4) +
++	       (s->nb_refs[L1] << 8);
++
++	if (s->sh->slice_type == HEVC_SLICE_B)
++		u32 |= ((s->sh->flags &
++			 V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO) != 0)
++		       << 16;
++	p1_apb_write(de, RPI_SLICE, u32);
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Tiles mode
++
++static void new_entry_point(struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s,
++			    const int do_bte,
++			    const int reset_qp_y, const int ctb_addr_ts)
++{
++	int ctb_col = s->ctb_addr_ts_to_rs[ctb_addr_ts] %
++							de->pic_width_in_ctbs_y;
++	int ctb_row = s->ctb_addr_ts_to_rs[ctb_addr_ts] /
++							de->pic_width_in_ctbs_y;
++
++	int tile_x = ctb_to_tile(ctb_col, s->col_bd, s->num_tile_columns);
++	int tile_y = ctb_to_tile(ctb_row, s->row_bd, s->num_tile_rows);
++
++	int endx = s->col_bd[tile_x + 1] - 1;
++	int endy = s->row_bd[tile_y + 1] - 1;
++
++	u8 slice_w = ctb_to_slice_w_h(ctb_col, 1 << s->log2_ctb_size,
++				      s->sps.pic_width_in_luma_samples,
++				      s->col_bd, s->num_tile_columns);
++	u8 slice_h = ctb_to_slice_w_h(ctb_row, 1 << s->log2_ctb_size,
++				      s->sps.pic_height_in_luma_samples,
++				      s->row_bd, s->num_tile_rows);
++
++	p1_apb_write(de, RPI_TILESTART,
++		     s->col_bd[tile_x] + (s->row_bd[tile_y] << 16));
++	p1_apb_write(de, RPI_TILEEND, endx + (endy << 16));
++
++	if (do_bte)
++		p1_apb_write(de, RPI_BEGINTILEEND, endx + (endy << 16));
++
++	write_slice(de, s, slice_w, slice_h);
++
++	if (reset_qp_y) {
++		unsigned int sps_qp_bd_offset =
++			6 * s->sps.bit_depth_luma_minus8;
++
++		p1_apb_write(de, RPI_QP, sps_qp_bd_offset + s->slice_qp);
++	}
++
++	p1_apb_write(de, RPI_MODE,
++		     (0xFFFF << 0) + (0x0 << 16) +
++			     ((tile_x == s->num_tile_columns - 1) << 17) +
++			     ((tile_y == s->num_tile_rows - 1) << 18));
++
++	p1_apb_write(de, RPI_CONTROL, (ctb_col << 0) + (ctb_row << 16));
++}
++
++//////////////////////////////////////////////////////////////////////////////
++
++static void new_slice_segment(struct rpivid_dec_env *const de,
++			      const struct rpivid_dec_state *const s)
++{
++	const struct v4l2_ctrl_hevc_sps *const sps = &s->sps;
++	const struct v4l2_ctrl_hevc_pps *const pps = &s->pps;
++
++	p1_apb_write(de,
++		     RPI_SPS0,
++		     ((sps->log2_min_luma_coding_block_size_minus3 + 3) << 0) |
++		     (s->log2_ctb_size << 4) |
++		     ((sps->log2_min_luma_transform_block_size_minus2 + 2)
++							<< 8) |
++		     ((sps->log2_min_luma_transform_block_size_minus2 + 2 +
++		       sps->log2_diff_max_min_luma_transform_block_size)
++						<< 12) |
++		     ((sps->bit_depth_luma_minus8 + 8) << 16) |
++		     ((sps->bit_depth_chroma_minus8 + 8) << 20) |
++		     (sps->max_transform_hierarchy_depth_intra << 24) |
++		     (sps->max_transform_hierarchy_depth_inter << 28));
++
++	p1_apb_write(de,
++		     RPI_SPS1,
++		     ((sps->pcm_sample_bit_depth_luma_minus1 + 1) << 0) |
++		     ((sps->pcm_sample_bit_depth_chroma_minus1 + 1) << 4) |
++		     ((sps->log2_min_pcm_luma_coding_block_size_minus3 + 3)
++						<< 8) |
++		     ((sps->log2_min_pcm_luma_coding_block_size_minus3 + 3 +
++		       sps->log2_diff_max_min_pcm_luma_coding_block_size)
++						<< 12) |
++		     (((sps->flags & V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE) ?
++				0 : sps->chroma_format_idc) << 16) |
++		     ((!!(sps->flags & V4L2_HEVC_SPS_FLAG_AMP_ENABLED)) << 18) |
++		     ((!!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED)) << 19) |
++		     ((!!(sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED))
++						<< 20) |
++		     ((!!(sps->flags &
++			   V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED))
++						<< 21));
++
++	p1_apb_write(de,
++		     RPI_PPS,
++		     ((s->log2_ctb_size - pps->diff_cu_qp_delta_depth) << 0) |
++		     ((!!(pps->flags & V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED))
++						 << 4) |
++		     ((!!(pps->flags &
++				V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED))
++						 << 5) |
++		     ((!!(pps->flags & V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED))
++						 << 6) |
++		     ((!!(pps->flags &
++				V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED))
++						<< 7) |
++		     (((pps->pps_cb_qp_offset + s->sh->slice_cb_qp_offset) & 255)
++						<< 8) |
++		     (((pps->pps_cr_qp_offset + s->sh->slice_cr_qp_offset) & 255)
++						<< 16) |
++		     ((!!(pps->flags &
++				V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED))
++						<< 24));
++
++	if ((sps->flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED) != 0)
++		write_scaling_factors(de);
++
++	if (!s->dependent_slice_segment_flag) {
++		int ctb_col = s->sh->slice_segment_addr %
++							de->pic_width_in_ctbs_y;
++		int ctb_row = s->sh->slice_segment_addr /
++							de->pic_width_in_ctbs_y;
++
++		de->reg_slicestart = (ctb_col << 0) + (ctb_row << 16);
++	}
++
++	p1_apb_write(de, RPI_SLICESTART, de->reg_slicestart);
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Slice messages
++
++static void msg_slice(struct rpivid_dec_env *const de, const u16 msg)
++{
++	de->slice_msgs[de->num_slice_msgs++] = msg;
++}
++
++static void program_slicecmds(struct rpivid_dec_env *const de,
++			      const int sliceid)
++{
++	int i;
++
++	p1_apb_write(de, RPI_SLICECMDS, de->num_slice_msgs + (sliceid << 8));
++
++	for (i = 0; i < de->num_slice_msgs; i++)
++		p1_apb_write(de, 0x4000 + 4 * i, de->slice_msgs[i] & 0xffff);
++}
++
++// NoBackwardPredictionFlag 8.3.5
++// Simply checks POCs
++static int has_backward(const struct v4l2_hevc_dpb_entry *const dpb,
++			const __u8 *const idx, const unsigned int n,
++			const unsigned int cur_poc)
++{
++	unsigned int i;
++
++	for (i = 0; i < n; ++i) {
++		// Compare mod 2^16
++		// We only get u16 pocs & 8.3.1 says
++		// "The bitstream shall not contain data that result in values
++		//  of DiffPicOrderCnt( picA, picB ) used in the decoding
++		//  process that are not in the range of −2^15 to 2^15 − 1,
++		//  inclusive."
++		if (((cur_poc - dpb[idx[i]].pic_order_cnt[0]) & 0x8000) != 0)
++			return 0;
++	}
++	return 1;
++}
++
++static void pre_slice_decode(struct rpivid_dec_env *const de,
++			     const struct rpivid_dec_state *const s)
++{
++	const struct v4l2_ctrl_hevc_slice_params *const sh = s->sh;
++	int weighted_pred_flag, idx;
++	u16 cmd_slice;
++	unsigned int collocated_from_l0_flag;
++
++	de->num_slice_msgs = 0;
++
++	cmd_slice = 0;
++	if (sh->slice_type == HEVC_SLICE_I)
++		cmd_slice = 1;
++	if (sh->slice_type == HEVC_SLICE_P)
++		cmd_slice = 2;
++	if (sh->slice_type == HEVC_SLICE_B)
++		cmd_slice = 3;
++
++	cmd_slice |= (s->nb_refs[L0] << 2) | (s->nb_refs[L1] << 6) |
++		     (s->max_num_merge_cand << 11);
++
++	collocated_from_l0_flag =
++		!s->slice_temporal_mvp ||
++		sh->slice_type != HEVC_SLICE_B ||
++		(sh->flags & V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0);
++	cmd_slice |= collocated_from_l0_flag << 14;
++
++	if (sh->slice_type == HEVC_SLICE_P || sh->slice_type == HEVC_SLICE_B) {
++		// Flag to say all reference pictures are from the past
++		const int no_backward_pred_flag =
++			has_backward(sh->dpb, sh->ref_idx_l0, s->nb_refs[L0],
++				     sh->slice_pic_order_cnt) &&
++			has_backward(sh->dpb, sh->ref_idx_l1, s->nb_refs[L1],
++				     sh->slice_pic_order_cnt);
++		cmd_slice |= no_backward_pred_flag << 10;
++		msg_slice(de, cmd_slice);
++
++		if (s->slice_temporal_mvp) {
++			const __u8 *const rpl = collocated_from_l0_flag ?
++						sh->ref_idx_l0 : sh->ref_idx_l1;
++			de->dpbno_col = rpl[sh->collocated_ref_idx];
++			//v4l2_info(&de->ctx->dev->v4l2_dev,
++			//	    "L0=%d col_ref_idx=%d,
++			//          dpb_no=%d\n", collocated_from_l0_flag,
++			//          sh->collocated_ref_idx, de->dpbno_col);
++		}
++
++		// Write reference picture descriptions
++		weighted_pred_flag =
++			sh->slice_type == HEVC_SLICE_P ?
++				!!(s->pps.flags & V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED) :
++				!!(s->pps.flags & V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED);
++
++		for (idx = 0; idx < s->nb_refs[L0]; ++idx) {
++			unsigned int dpb_no = sh->ref_idx_l0[idx];
++			//v4l2_info(&de->ctx->dev->v4l2_dev,
++			//	  "L0[%d]=dpb[%d]\n", idx, dpb_no);
++
++			msg_slice(de,
++				  dpb_no |
++				  (sh->dpb[dpb_no].rps ==
++					V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR ?
++						 (1 << 4) : 0) |
++				  (weighted_pred_flag ? (3 << 5) : 0));
++			msg_slice(de, sh->dpb[dpb_no].pic_order_cnt[0]);
++
++			if (weighted_pred_flag) {
++				const struct v4l2_hevc_pred_weight_table
++					*const w = &sh->pred_weight_table;
++				const int luma_weight_denom =
++					(1 << w->luma_log2_weight_denom);
++				const unsigned int chroma_log2_weight_denom =
++					(w->luma_log2_weight_denom +
++					 w->delta_chroma_log2_weight_denom);
++				const int chroma_weight_denom =
++					(1 << chroma_log2_weight_denom);
++
++				msg_slice(de,
++					  w->luma_log2_weight_denom |
++					  (((w->delta_luma_weight_l0[idx] +
++					     luma_weight_denom) & 0x1ff)
++						 << 3));
++				msg_slice(de, w->luma_offset_l0[idx] & 0xff);
++				msg_slice(de,
++					  chroma_log2_weight_denom |
++					  (((w->delta_chroma_weight_l0[idx][0] +
++					     chroma_weight_denom) & 0x1ff)
++						   << 3));
++				msg_slice(de,
++					  w->chroma_offset_l0[idx][0] & 0xff);
++				msg_slice(de,
++					  chroma_log2_weight_denom |
++					  (((w->delta_chroma_weight_l0[idx][1] +
++					     chroma_weight_denom) & 0x1ff)
++						   << 3));
++				msg_slice(de,
++					  w->chroma_offset_l0[idx][1] & 0xff);
++			}
++		}
++
++		for (idx = 0; idx < s->nb_refs[L1]; ++idx) {
++			unsigned int dpb_no = sh->ref_idx_l1[idx];
++			//v4l2_info(&de->ctx->dev->v4l2_dev,
++			//          "L1[%d]=dpb[%d]\n", idx, dpb_no);
++			msg_slice(de,
++				  dpb_no |
++				  (sh->dpb[dpb_no].rps ==
++					 V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR ?
++						 (1 << 4) : 0) |
++					(weighted_pred_flag ? (3 << 5) : 0));
++			msg_slice(de, sh->dpb[dpb_no].pic_order_cnt[0]);
++			if (weighted_pred_flag) {
++				const struct v4l2_hevc_pred_weight_table
++					*const w = &sh->pred_weight_table;
++				const int luma_weight_denom =
++					(1 << w->luma_log2_weight_denom);
++				const unsigned int chroma_log2_weight_denom =
++					(w->luma_log2_weight_denom +
++					 w->delta_chroma_log2_weight_denom);
++				const int chroma_weight_denom =
++					(1 << chroma_log2_weight_denom);
++
++				msg_slice(de,
++					  w->luma_log2_weight_denom |
++					  (((w->delta_luma_weight_l1[idx] +
++					     luma_weight_denom) & 0x1ff) << 3));
++				msg_slice(de, w->luma_offset_l1[idx] & 0xff);
++				msg_slice(de,
++					  chroma_log2_weight_denom |
++					  (((w->delta_chroma_weight_l1[idx][0] +
++					     chroma_weight_denom) & 0x1ff)
++							<< 3));
++				msg_slice(de,
++					  w->chroma_offset_l1[idx][0] & 0xff);
++				msg_slice(de,
++					  chroma_log2_weight_denom |
++					  (((w->delta_chroma_weight_l1[idx][1] +
++					     chroma_weight_denom) & 0x1ff)
++						   << 3));
++				msg_slice(de,
++					  w->chroma_offset_l1[idx][1] & 0xff);
++			}
++		}
++	} else {
++		msg_slice(de, cmd_slice);
++	}
++
++	msg_slice(de,
++		  (sh->slice_beta_offset_div2 & 15) |
++		  ((sh->slice_tc_offset_div2 & 15) << 4) |
++		  ((sh->flags &
++		    V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED) ?
++						1 << 8 : 0) |
++		  ((sh->flags &
++			  V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED) ?
++						1 << 9 : 0) |
++		  ((s->pps.flags &
++			  V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED) ?
++						1 << 10 : 0));
++
++	msg_slice(de, ((sh->slice_cr_qp_offset & 31) << 5) +
++		       (sh->slice_cb_qp_offset & 31)); // CMD_QPOFF
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Write STATUS register with expected end CTU address of previous slice
++
++static void end_previous_slice(struct rpivid_dec_env *const de,
++			       const struct rpivid_dec_state *const s,
++			       const int ctb_addr_ts)
++{
++	int last_x =
++		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] % de->pic_width_in_ctbs_y;
++	int last_y =
++		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] / de->pic_width_in_ctbs_y;
++
++	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
++}
++
++static void wpp_pause(struct rpivid_dec_env *const de, int ctb_row)
++{
++	p1_apb_write(de, RPI_STATUS, (ctb_row << 18) + 0x25);
++	p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++	p1_apb_write(de, RPI_MODE,
++		     ctb_row == de->pic_height_in_ctbs_y - 1 ?
++							0x70000 : 0x30000);
++	p1_apb_write(de, RPI_CONTROL, (ctb_row << 16) + 2);
++}
++
++static void wpp_end_previous_slice(struct rpivid_dec_env *const de,
++				   const struct rpivid_dec_state *const s,
++				   int ctb_addr_ts)
++{
++	int new_x = s->sh->slice_segment_addr % de->pic_width_in_ctbs_y;
++	int new_y = s->sh->slice_segment_addr / de->pic_width_in_ctbs_y;
++	int last_x =
++		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] % de->pic_width_in_ctbs_y;
++	int last_y =
++		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] / de->pic_width_in_ctbs_y;
++
++	if (de->wpp_entry_x < 2 && (de->wpp_entry_y < new_y || new_x > 2) &&
++	    de->pic_width_in_ctbs_y > 2)
++		wpp_pause(de, last_y);
++	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
++	if (new_x == 2 || (de->pic_width_in_ctbs_y == 2 &&
++			   de->wpp_entry_y < new_y))
++		p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Wavefront mode
++
++static void wpp_entry_point(struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s,
++			    const int do_bte,
++			    const int reset_qp_y, const int ctb_addr_ts)
++{
++	int ctb_size = 1 << s->log2_ctb_size;
++	int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
++
++	int ctb_col = de->wpp_entry_x = ctb_addr_rs % de->pic_width_in_ctbs_y;
++	int ctb_row = de->wpp_entry_y = ctb_addr_rs / de->pic_width_in_ctbs_y;
++
++	int endx = de->pic_width_in_ctbs_y - 1;
++	int endy = ctb_row;
++
++	u8 slice_w = ctb_to_slice_w_h(ctb_col, ctb_size,
++				      s->sps.pic_width_in_luma_samples,
++				      s->col_bd, s->num_tile_columns);
++	u8 slice_h = ctb_to_slice_w_h(ctb_row, ctb_size,
++				      s->sps.pic_height_in_luma_samples,
++				      s->row_bd, s->num_tile_rows);
++
++	p1_apb_write(de, RPI_TILESTART, 0);
++	p1_apb_write(de, RPI_TILEEND, endx + (endy << 16));
++
++	if (do_bte)
++		p1_apb_write(de, RPI_BEGINTILEEND, endx + (endy << 16));
++
++	write_slice(de, s, slice_w,
++		    ctb_row == de->pic_height_in_ctbs_y - 1 ?
++							slice_h : ctb_size);
++
++	if (reset_qp_y) {
++		unsigned int sps_qp_bd_offset =
++			6 * s->sps.bit_depth_luma_minus8;
++
++		p1_apb_write(de, RPI_QP, sps_qp_bd_offset + s->slice_qp);
++	}
++
++	p1_apb_write(de, RPI_MODE,
++		     ctb_row == de->pic_height_in_ctbs_y - 1 ?
++							0x60001 : 0x20001);
++	p1_apb_write(de, RPI_CONTROL, (ctb_col << 0) + (ctb_row << 16));
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Wavefront mode
++
++static void wpp_decode_slice(struct rpivid_dec_env *const de,
++			     const struct rpivid_dec_state *const s,
++			     const struct v4l2_ctrl_hevc_slice_params *sh,
++			     int ctb_addr_ts)
++{
++	int i, reset_qp_y = 1;
++	int indep = !s->dependent_slice_segment_flag;
++	int ctb_col = s->sh->slice_segment_addr % de->pic_width_in_ctbs_y;
++
++	if (ctb_addr_ts)
++		wpp_end_previous_slice(de, s, ctb_addr_ts);
++	pre_slice_decode(de, s);
++	write_bitstream(de, s);
++	if (ctb_addr_ts == 0 || indep || de->pic_width_in_ctbs_y == 1)
++		write_prob(de, s);
++	else if (ctb_col == 0)
++		p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
++	else
++		reset_qp_y = 0;
++	program_slicecmds(de, s->slice_idx);
++	new_slice_segment(de, s);
++	wpp_entry_point(de, s, indep, reset_qp_y, ctb_addr_ts);
++
++	for (i = 0; i < s->sh->num_entry_point_offsets; i++) {
++		int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
++		int ctb_row = ctb_addr_rs / de->pic_width_in_ctbs_y;
++		int last_x = de->pic_width_in_ctbs_y - 1;
++
++		if (de->pic_width_in_ctbs_y > 2)
++			wpp_pause(de, ctb_row);
++		p1_apb_write(de, RPI_STATUS,
++			     (ctb_row << 18) + (last_x << 5) + 2);
++		if (de->pic_width_in_ctbs_y == 2)
++			p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++		if (de->pic_width_in_ctbs_y == 1)
++			write_prob(de, s);
++		else
++			p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
++		ctb_addr_ts += s->column_width[0];
++		wpp_entry_point(de, s, 0, 1, ctb_addr_ts);
++	}
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Tiles mode
++
++static void decode_slice(struct rpivid_dec_env *const de,
++			 const struct rpivid_dec_state *const s,
++			 const struct v4l2_ctrl_hevc_slice_params *const sh,
++			 int ctb_addr_ts)
++{
++	int i, reset_qp_y;
++
++	if (ctb_addr_ts)
++		end_previous_slice(de, s, ctb_addr_ts);
++
++	pre_slice_decode(de, s);
++	write_bitstream(de, s);
++
++#if DEBUG_TRACE_P1_CMD
++	if (p1_z < 256) {
++		v4l2_info(&de->ctx->dev->v4l2_dev,
++			  "TS=%d, tile=%d/%d, dss=%d, flags=%#llx\n",
++			  ctb_addr_ts, s->tile_id[ctb_addr_ts],
++			  s->tile_id[ctb_addr_ts - 1],
++			  s->dependent_slice_segment_flag, sh->flags);
++	}
++#endif
++
++	reset_qp_y = ctb_addr_ts == 0 ||
++		   s->tile_id[ctb_addr_ts] != s->tile_id[ctb_addr_ts - 1] ||
++		   !s->dependent_slice_segment_flag;
++	if (reset_qp_y)
++		write_prob(de, s);
++
++	program_slicecmds(de, s->slice_idx);
++	new_slice_segment(de, s);
++	new_entry_point(de, s, !s->dependent_slice_segment_flag, reset_qp_y,
++			ctb_addr_ts);
++
++	for (i = 0; i < s->sh->num_entry_point_offsets; i++) {
++		int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
++		int ctb_col = ctb_addr_rs % de->pic_width_in_ctbs_y;
++		int ctb_row = ctb_addr_rs / de->pic_width_in_ctbs_y;
++		int tile_x = ctb_to_tile(ctb_col, s->col_bd,
++					 s->num_tile_columns - 1);
++		int tile_y =
++			ctb_to_tile(ctb_row, s->row_bd, s->num_tile_rows - 1);
++		int last_x = s->col_bd[tile_x + 1] - 1;
++		int last_y = s->row_bd[tile_y + 1] - 1;
++
++		p1_apb_write(de, RPI_STATUS,
++			     2 + (last_x << 5) + (last_y << 18));
++		write_prob(de, s);
++		ctb_addr_ts += s->column_width[tile_x] * s->row_height[tile_y];
++		new_entry_point(de, s, 0, 1, ctb_addr_ts);
++	}
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Scaling factors
++
++static void expand_scaling_list(const unsigned int size_id,
++				const unsigned int matrix_id, u8 *const dst0,
++				const u8 *const src0, uint8_t dc)
++{
++	u8 *d;
++	unsigned int x, y;
++
++	// FIXME: matrix_id is unused ?
++	switch (size_id) {
++	case 0:
++		memcpy(dst0, src0, 16);
++		break;
++	case 1:
++		memcpy(dst0, src0, 64);
++		break;
++	case 2:
++		d = dst0;
++
++		for (y = 0; y != 16; y++) {
++			const u8 *s = src0 + (y >> 1) * 8;
++
++			for (x = 0; x != 8; ++x) {
++				*d++ = *s;
++				*d++ = *s++;
++			}
++		}
++		dst0[0] = dc;
++		break;
++	default:
++		d = dst0;
++
++		for (y = 0; y != 32; y++) {
++			const u8 *s = src0 + (y >> 2) * 8;
++
++			for (x = 0; x != 8; ++x) {
++				*d++ = *s;
++				*d++ = *s;
++				*d++ = *s;
++				*d++ = *s++;
++			}
++		}
++		dst0[0] = dc;
++		break;
++	}
++}
++
++static void populate_scaling_factors(const struct rpivid_run *const run,
++				     struct rpivid_dec_env *const de,
++				     const struct rpivid_dec_state *const s)
++{
++	const struct v4l2_ctrl_hevc_scaling_matrix *const sl =
++		run->h265.scaling_matrix;
++	// Array of constants for scaling factors
++	static const u32 scaling_factor_offsets[4][6] = {
++		// MID0    MID1    MID2    MID3    MID4    MID5
++		// SID0 (4x4)
++		{ 0x0000, 0x0010, 0x0020, 0x0030, 0x0040, 0x0050 },
++		// SID1 (8x8)
++		{ 0x0060, 0x00A0, 0x00E0, 0x0120, 0x0160, 0x01A0 },
++		// SID2 (16x16)
++		{ 0x01E0, 0x02E0, 0x03E0, 0x04E0, 0x05E0, 0x06E0 },
++		// SID3 (32x32)
++		{ 0x07E0, 0x0BE0, 0x0000, 0x0000, 0x0000, 0x0000 }
++	};
++
++	unsigned int mid;
++
++	for (mid = 0; mid < 6; mid++)
++		expand_scaling_list(0, mid,
++				    de->scaling_factors +
++					    scaling_factor_offsets[0][mid],
++				    sl->scaling_list_4x4[mid], 0);
++	for (mid = 0; mid < 6; mid++)
++		expand_scaling_list(1, mid,
++				    de->scaling_factors +
++					    scaling_factor_offsets[1][mid],
++				    sl->scaling_list_8x8[mid], 0);
++	for (mid = 0; mid < 6; mid++)
++		expand_scaling_list(2, mid,
++				    de->scaling_factors +
++					    scaling_factor_offsets[2][mid],
++				    sl->scaling_list_16x16[mid],
++				    sl->scaling_list_dc_coef_16x16[mid]);
++	for (mid = 0; mid < 2; mid += 1)
++		expand_scaling_list(3, mid,
++				    de->scaling_factors +
++					    scaling_factor_offsets[3][mid],
++				    sl->scaling_list_32x32[mid],
++				    sl->scaling_list_dc_coef_32x32[mid]);
++}
++
++static void free_ps_info(struct rpivid_dec_state *const s)
++{
++	kfree(s->ctb_addr_rs_to_ts);
++	s->ctb_addr_rs_to_ts = NULL;
++	kfree(s->ctb_addr_ts_to_rs);
++	s->ctb_addr_ts_to_rs = NULL;
++	kfree(s->tile_id);
++	s->tile_id = NULL;
++
++	kfree(s->col_bd);
++	s->col_bd = NULL;
++	kfree(s->row_bd);
++	s->row_bd = NULL;
++}
++
++static int updated_ps(struct rpivid_dec_state *const s)
++{
++	unsigned int ctb_addr_rs;
++	int j, x, y, tile_id;
++	unsigned int i;
++
++	free_ps_info(s);
++
++	// Inferred parameters
++	s->log2_ctb_size = s->sps.log2_min_luma_coding_block_size_minus3 + 3 +
++			   s->sps.log2_diff_max_min_luma_coding_block_size;
++
++	s->ctb_width = (s->sps.pic_width_in_luma_samples +
++			(1 << s->log2_ctb_size) - 1) >>
++		       s->log2_ctb_size;
++	s->ctb_height = (s->sps.pic_height_in_luma_samples +
++			 (1 << s->log2_ctb_size) - 1) >>
++			s->log2_ctb_size;
++	s->ctb_size = s->ctb_width * s->ctb_height;
++
++	// Inferred parameters
++
++	if (!(s->pps.flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED)) {
++		s->num_tile_columns = 1;
++		s->num_tile_rows = 1;
++		s->column_width[0] = s->ctb_width;
++		s->row_height[0] = s->ctb_height;
++	} else {
++		s->num_tile_columns = s->pps.num_tile_columns_minus1 + 1;
++		s->num_tile_rows = s->pps.num_tile_rows_minus1 + 1;
++		for (i = 0; i < s->num_tile_columns; ++i)
++			s->column_width[i] = s->pps.column_width_minus1[i] + 1;
++		for (i = 0; i < s->num_tile_rows; ++i)
++			s->row_height[i] = s->pps.row_height_minus1[i] + 1;
++	}
++
++	s->col_bd = kmalloc((s->num_tile_columns + 1) * sizeof(*s->col_bd),
++			    GFP_KERNEL);
++	s->row_bd = kmalloc((s->num_tile_rows + 1) * sizeof(*s->row_bd),
++			    GFP_KERNEL);
++
++	s->col_bd[0] = 0;
++	for (i = 0; i < s->num_tile_columns; i++)
++		s->col_bd[i + 1] = s->col_bd[i] + s->column_width[i];
++
++	s->row_bd[0] = 0;
++	for (i = 0; i < s->num_tile_rows; i++)
++		s->row_bd[i + 1] = s->row_bd[i] + s->row_height[i];
++
++	s->ctb_addr_rs_to_ts = kmalloc_array(s->ctb_size,
++					     sizeof(*s->ctb_addr_rs_to_ts),
++					     GFP_KERNEL);
++	s->ctb_addr_ts_to_rs = kmalloc_array(s->ctb_size,
++					     sizeof(*s->ctb_addr_ts_to_rs),
++					     GFP_KERNEL);
++	s->tile_id = kmalloc_array(s->ctb_size, sizeof(*s->tile_id),
++				   GFP_KERNEL);
++
++	for (ctb_addr_rs = 0; ctb_addr_rs < s->ctb_size; ctb_addr_rs++) {
++		int tb_x = ctb_addr_rs % s->ctb_width;
++		int tb_y = ctb_addr_rs / s->ctb_width;
++		int tile_x = 0;
++		int tile_y = 0;
++		int val = 0;
++
++		for (i = 0; i < s->num_tile_columns; i++) {
++			if (tb_x < s->col_bd[i + 1]) {
++				tile_x = i;
++				break;
++			}
++		}
++
++		for (i = 0; i < s->num_tile_rows; i++) {
++			if (tb_y < s->row_bd[i + 1]) {
++				tile_y = i;
++				break;
++			}
++		}
++
++		for (i = 0; i < tile_x; i++)
++			val += s->row_height[tile_y] * s->column_width[i];
++		for (i = 0; i < tile_y; i++)
++			val += s->ctb_width * s->row_height[i];
++
++		val += (tb_y - s->row_bd[tile_y]) * s->column_width[tile_x] +
++		       tb_x - s->col_bd[tile_x];
++
++		s->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
++		s->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
++	}
++
++	for (j = 0, tile_id = 0; j < s->num_tile_rows; j++)
++		for (i = 0; i < s->num_tile_columns; i++, tile_id++)
++			for (y = s->row_bd[j]; y < s->row_bd[j + 1]; y++)
++				for (x = s->col_bd[i];
++				     x < s->col_bd[i + 1];
++				     x++)
++					s->tile_id[s->ctb_addr_rs_to_ts
++							   [y * s->ctb_width +
++							    x]] = tile_id;
++
++	return 0;
++}
++
++static int frame_end(struct rpivid_dev *const dev,
++		     struct rpivid_dec_env *const de,
++		     const struct rpivid_dec_state *const s)
++{
++	const unsigned int last_x = s->col_bd[s->num_tile_columns] - 1;
++	const unsigned int last_y = s->row_bd[s->num_tile_rows] - 1;
++	size_t cmd_size;
++
++	if (s->pps.flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED) {
++		if (de->wpp_entry_x < 2 && de->pic_width_in_ctbs_y > 2)
++			wpp_pause(de, last_y);
++	}
++	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
++
++	// Copy commands out to dma buf
++	cmd_size = de->cmd_len * sizeof(de->cmd_fifo[0]);
++
++	if (!de->cmd_copy_gptr->ptr || cmd_size > de->cmd_copy_gptr->size) {
++		size_t cmd_alloc = round_up_size(cmd_size);
++
++		if (gptr_realloc_new(dev, de->cmd_copy_gptr, cmd_alloc)) {
++			v4l2_err(&dev->v4l2_dev,
++				 "Alloc cmd buffer (%d): FAILED\n", cmd_alloc);
++			return -ENOMEM;
++		}
++		v4l2_info(&dev->v4l2_dev, "Alloc cmd buffer (%d): OK\n",
++			  cmd_alloc);
++	}
++
++	memcpy(de->cmd_copy_gptr->ptr, de->cmd_fifo, cmd_size);
++	return 0;
++}
++
++static void setup_colmv(struct rpivid_ctx *const ctx, struct rpivid_run *run,
++			struct rpivid_dec_state *const s)
++{
++	ctx->colmv_stride = ALIGN(s->sps.pic_width_in_luma_samples, 64);
++	ctx->colmv_picsize = ctx->colmv_stride *
++		(ALIGN(s->sps.pic_height_in_luma_samples, 64) >> 4);
++}
++
++// Can be called from irq context
++static struct rpivid_dec_env *dec_env_new(struct rpivid_ctx *const ctx)
++{
++	struct rpivid_dec_env *de;
++	unsigned long lock_flags;
++
++	spin_lock_irqsave(&ctx->dec_lock, lock_flags);
++
++	de = ctx->dec_free;
++	if (de) {
++		ctx->dec_free = de->next;
++		de->next = NULL;
++		de->state = RPIVID_DECODE_SLICE_START;
++	}
++
++	spin_unlock_irqrestore(&ctx->dec_lock, lock_flags);
++	return de;
++}
++
++// Can be called from irq context
++static void dec_env_delete(struct rpivid_dec_env *const de)
++{
++	struct rpivid_ctx * const ctx = de->ctx;
++	unsigned long lock_flags;
++
++	aux_q_release(ctx, &de->frame_aux);
++	aux_q_release(ctx, &de->col_aux);
++
++	spin_lock_irqsave(&ctx->dec_lock, lock_flags);
++
++	de->state = RPIVID_DECODE_END;
++	de->next = ctx->dec_free;
++	ctx->dec_free = de;
++
++	spin_unlock_irqrestore(&ctx->dec_lock, lock_flags);
++}
++
++static void dec_env_uninit(struct rpivid_ctx *const ctx)
++{
++	unsigned int i;
++
++	if (ctx->dec_pool) {
++		for (i = 0; i != RPIVID_DEC_ENV_COUNT; ++i) {
++			struct rpivid_dec_env *const de = ctx->dec_pool + i;
++
++			kfree(de->cmd_fifo);
++		}
++
++		kfree(ctx->dec_pool);
++	}
++
++	ctx->dec_pool = NULL;
++	ctx->dec_free = NULL;
++}
++
++static int dec_env_init(struct rpivid_ctx *const ctx)
++{
++	unsigned int i;
++
++	ctx->dec_pool = kzalloc(sizeof(*ctx->dec_pool) * RPIVID_DEC_ENV_COUNT,
++				GFP_KERNEL);
++	if (!ctx->dec_pool)
++		return -1;
++
++	spin_lock_init(&ctx->dec_lock);
++
++	// Build free chain
++	ctx->dec_free = ctx->dec_pool;
++	for (i = 0; i != RPIVID_DEC_ENV_COUNT - 1; ++i)
++		ctx->dec_pool[i].next = ctx->dec_pool + i + 1;
++
++	// Fill in other bits
++	for (i = 0; i != RPIVID_DEC_ENV_COUNT; ++i) {
++		struct rpivid_dec_env *const de = ctx->dec_pool + i;
++
++		de->ctx = ctx;
++		de->decode_order = i;
++		de->cmd_max = 1024;
++		de->cmd_fifo = kmalloc_array(de->cmd_max,
++					     sizeof(struct rpi_cmd),
++					     GFP_KERNEL);
++		if (!de->cmd_fifo)
++			goto fail;
++	}
++
++	return 0;
++
++fail:
++	dec_env_uninit(ctx);
++	return -1;
++}
++
++// Assume that we get exactly the same DPB for every slice
++// it makes no real sense otherwise
++#if V4L2_HEVC_DPB_ENTRIES_NUM_MAX > 16
++#error HEVC_DPB_ENTRIES > h/w slots
++#endif
++
++static u32 mk_config2(const struct rpivid_dec_state *const s)
++{
++	const struct v4l2_ctrl_hevc_sps *const sps = &s->sps;
++	const struct v4l2_ctrl_hevc_pps *const pps = &s->pps;
++	u32 c;
++	// BitDepthY
++	c = (sps->bit_depth_luma_minus8 + 8) << 0;
++	 // BitDepthC
++	c |= (sps->bit_depth_chroma_minus8 + 8) << 4;
++	 // BitDepthY
++	if (sps->bit_depth_luma_minus8)
++		c |= BIT(8);
++	// BitDepthC
++	if (sps->bit_depth_chroma_minus8)
++		c |= BIT(9);
++	c |= s->log2_ctb_size << 10;
++	if (pps->flags & V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED)
++		c |= BIT(13);
++	if (sps->flags & V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED)
++		c |= BIT(14);
++	if (sps->flags & V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED)
++		c |= BIT(15); /* Write motion vectors to external memory */
++	c |= (pps->log2_parallel_merge_level_minus2 + 2) << 16;
++	if (s->slice_temporal_mvp)
++		c |= BIT(19);
++	if (sps->flags & V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED)
++		c |= BIT(20);
++	c |= (pps->pps_cb_qp_offset & 31) << 21;
++	c |= (pps->pps_cr_qp_offset & 31) << 26;
++	return c;
++}
++
++static void rpivid_h265_setup(struct rpivid_ctx *ctx, struct rpivid_run *run)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++	const struct v4l2_ctrl_hevc_slice_params *const sh =
++						run->h265.slice_params;
++	const struct v4l2_hevc_pred_weight_table *pred_weight_table;
++	struct rpivid_q_aux *dpb_q_aux[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
++	struct rpivid_dec_state *const s = ctx->state;
++	struct vb2_queue *vq;
++	struct rpivid_dec_env *de;
++	int ctb_addr_ts;
++	unsigned int i;
++	int use_aux;
++	bool slice_temporal_mvp;
++
++	pred_weight_table = &sh->pred_weight_table;
++
++	s->frame_end =
++		((run->src->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF) == 0);
++
++	de = ctx->dec0;
++	slice_temporal_mvp = (sh->flags &
++		   V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED);
++
++	if (de && de->state != RPIVID_DECODE_END) {
++		++s->slice_idx;
++
++		switch (de->state) {
++		case RPIVID_DECODE_SLICE_CONTINUE:
++			// Expected state
++			break;
++		default:
++			v4l2_err(&dev->v4l2_dev, "%s: Unexpected state: %d\n",
++				 __func__, de->state);
++		/* FALLTHRU */
++		case RPIVID_DECODE_ERROR_CONTINUE:
++			// Uncleared error - fail now
++			goto fail;
++		}
++
++		if (s->slice_temporal_mvp != slice_temporal_mvp) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Slice Temporal MVP non-constant\n");
++			goto fail;
++		}
++	} else {
++		/* Frame start */
++		unsigned int ctb_size_y;
++		bool sps_changed = false;
++
++		if (memcmp(&s->sps, run->h265.sps, sizeof(s->sps)) != 0) {
++			/* SPS changed */
++			v4l2_info(&dev->v4l2_dev, "SPS changed\n");
++			memcpy(&s->sps, run->h265.sps, sizeof(s->sps));
++			sps_changed = true;
++		}
++		if (sps_changed ||
++		    memcmp(&s->pps, run->h265.pps, sizeof(s->pps)) != 0) {
++			/* SPS changed */
++			v4l2_info(&dev->v4l2_dev, "PPS changed\n");
++			memcpy(&s->pps, run->h265.pps, sizeof(s->pps));
++
++			/* Recalc stuff as required */
++			updated_ps(s);
++		}
++
++		de = dec_env_new(ctx);
++		if (!de) {
++			v4l2_err(&dev->v4l2_dev,
++				 "Failed to find free decode env\n");
++			goto fail;
++		}
++		ctx->dec0 = de;
++
++		ctb_size_y =
++			1U << (s->sps.log2_min_luma_coding_block_size_minus3 +
++			       3 +
++			       s->sps.log2_diff_max_min_luma_coding_block_size);
++
++		de->pic_width_in_ctbs_y =
++			(s->sps.pic_width_in_luma_samples + ctb_size_y - 1) /
++				ctb_size_y; // 7-15
++		de->pic_height_in_ctbs_y =
++			(s->sps.pic_height_in_luma_samples + ctb_size_y - 1) /
++				ctb_size_y; // 7-17
++		de->cmd_len = 0;
++		de->dpbno_col = ~0U;
++
++		de->bit_copy_gptr = ctx->bitbufs + 0;
++		de->bit_copy_len = 0;
++		de->cmd_copy_gptr = ctx->cmdbufs + 0;
++
++		de->frame_c_offset = ctx->dst_fmt.height * 128;
++		de->frame_stride = ctx->dst_fmt.bytesperline * 128;
++		de->frame_addr =
++			vb2_dma_contig_plane_dma_addr(&run->dst->vb2_buf, 0);
++		de->frame_aux = NULL;
++
++		if (s->sps.bit_depth_luma_minus8 !=
++		    s->sps.bit_depth_chroma_minus8) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Chroma depth (%d) != Luma depth (%d)\n",
++				  s->sps.bit_depth_chroma_minus8 + 8,
++				  s->sps.bit_depth_luma_minus8 + 8);
++			goto fail;
++		}
++		if (s->sps.bit_depth_luma_minus8 == 0) {
++			if (ctx->dst_fmt.pixelformat !=
++						V4L2_PIX_FMT_NV12_COL128) {
++				v4l2_err(&dev->v4l2_dev,
++					 "Pixel format %#x != NV12_COL128 for 8-bit output",
++					 ctx->dst_fmt.pixelformat);
++				goto fail;
++			}
++		} else if (s->sps.bit_depth_luma_minus8 == 2) {
++			if (ctx->dst_fmt.pixelformat !=
++						V4L2_PIX_FMT_NV12_10_COL128) {
++				v4l2_err(&dev->v4l2_dev,
++					 "Pixel format %#x != NV12_10_COL128 for 10-bit output",
++					 ctx->dst_fmt.pixelformat);
++				goto fail;
++			}
++		} else {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Luma depth (%d) unsupported\n",
++				  s->sps.bit_depth_luma_minus8 + 8);
++			goto fail;
++		}
++		if (run->dst->vb2_buf.num_planes != 1) {
++			v4l2_warn(&dev->v4l2_dev, "Capture planes (%d) != 1\n",
++				  run->dst->vb2_buf.num_planes);
++			goto fail;
++		}
++		if (run->dst->planes[0].length <
++		    ctx->dst_fmt.sizeimage) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Capture plane[0] length (%d) < sizeimage (%d)\n",
++				  run->dst->planes[0].length,
++				  ctx->dst_fmt.sizeimage);
++			goto fail;
++		}
++
++		if (s->sps.pic_width_in_luma_samples > 4096 ||
++		    s->sps.pic_height_in_luma_samples > 4096) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Pic dimension (%dx%d) exeeds 4096\n",
++				  s->sps.pic_width_in_luma_samples,
++				  s->sps.pic_height_in_luma_samples);
++			goto fail;
++		}
++
++		// Fill in ref planes with our address s.t. if we mess
++		// up refs somehow then we still have a valid address
++		// entry
++		for (i = 0; i != 16; ++i)
++			de->ref_addrs[i] = de->frame_addr;
++
++		/*
++		 * Stash initial temporal_mvp flag
++		 * This must be the same for all pic slices (7.4.7.1)
++		 */
++		s->slice_temporal_mvp = slice_temporal_mvp;
++
++		// Phase 2 reg pre-calc
++		de->rpi_config2 = mk_config2(s);
++		de->rpi_framesize = (s->sps.pic_height_in_luma_samples << 16) |
++				    s->sps.pic_width_in_luma_samples;
++		de->rpi_currpoc = sh->slice_pic_order_cnt;
++
++		if (s->sps.flags &
++		    V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED) {
++			setup_colmv(ctx, run, s);
++		}
++
++		s->slice_idx = 0;
++
++		if (sh->slice_segment_addr != 0) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "New frame but segment_addr=%d\n",
++				  sh->slice_segment_addr);
++			goto fail;
++		}
++
++		/* Allocate a bitbuf if we need one - don't need one if single
++		 * slice as we can use the src buf directly
++		 */
++		if (!s->frame_end && !de->bit_copy_gptr->ptr) {
++			const size_t wxh = s->sps.pic_width_in_luma_samples *
++				s->sps.pic_height_in_luma_samples;
++			size_t bits_alloc;
++
++			/* Annex A gives a min compression of 2 @ lvl 3.1
++			 * (wxh <= 983040) and min 4 thereafter but avoid
++			 * the odity of 983041 having a lower limit than
++			 * 983040.
++			 * Multiply by 3/2 for 4:2:0
++			 */
++			bits_alloc = wxh < 983040 ? wxh * 3 / 4 :
++				wxh < 983040 * 2 ? 983040 * 3 / 4 :
++				wxh * 3 / 8;
++			bits_alloc = round_up_size(bits_alloc);
++
++			if (gptr_alloc(dev, de->bit_copy_gptr,
++				       bits_alloc,
++				       DMA_ATTR_FORCE_CONTIGUOUS) != 0) {
++				v4l2_err(&dev->v4l2_dev,
++					 "Unable to alloc buf (%d) for bit copy\n",
++					 bits_alloc);
++				goto fail;
++			}
++			v4l2_info(&dev->v4l2_dev,
++				  "Alloc buf (%d) for bit copy OK\n",
++				  bits_alloc);
++		}
++	}
++
++	// Pre calc a few things
++	s->src_addr =
++		!s->frame_end ?
++			0 :
++			vb2_dma_contig_plane_dma_addr(&run->src->vb2_buf, 0);
++	s->src_buf = s->src_addr != 0 ? NULL :
++					vb2_plane_vaddr(&run->src->vb2_buf, 0);
++	if (!s->src_addr && !s->src_buf) {
++		v4l2_err(&dev->v4l2_dev, "Failed to map src buffer\n");
++		goto fail;
++	}
++
++	s->sh = sh;
++	s->slice_qp = 26 + s->pps.init_qp_minus26 + s->sh->slice_qp_delta;
++	s->max_num_merge_cand = sh->slice_type == HEVC_SLICE_I ?
++					0 :
++					(5 - sh->five_minus_max_num_merge_cand);
++	// * SH DSS flag invented by me - but clearly needed
++	s->dependent_slice_segment_flag =
++		((sh->flags &
++		  V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT) != 0);
++
++	s->nb_refs[0] = (sh->slice_type == HEVC_SLICE_I) ?
++				0 :
++				sh->num_ref_idx_l0_active_minus1 + 1;
++	s->nb_refs[1] = (sh->slice_type != HEVC_SLICE_B) ?
++				0 :
++				sh->num_ref_idx_l1_active_minus1 + 1;
++
++	if (s->sps.flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED)
++		populate_scaling_factors(run, de, s);
++
++	ctb_addr_ts = s->ctb_addr_rs_to_ts[sh->slice_segment_addr];
++
++	if ((s->pps.flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED))
++		wpp_decode_slice(de, s, sh, ctb_addr_ts);
++	else
++		decode_slice(de, s, sh, ctb_addr_ts);
++
++	if (!s->frame_end)
++		return;
++
++	// Frame end
++	memset(dpb_q_aux, 0,
++	       sizeof(*dpb_q_aux) * V4L2_HEVC_DPB_ENTRIES_NUM_MAX);
++	/*
++	 * Need Aux ents for all (ref) DPB ents if temporal MV could
++	 * be enabled for any pic
++	 * ** At the moment we have aux ents for all pics whether or not
++	 *    they are ref
++	 */
++	use_aux = ((s->sps.flags &
++		  V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED) != 0);
++
++	// Locate ref frames
++	// At least in the current implementation this is constant across all
++	// slices. If this changes we will need idx mapping code.
++	// Uses sh so here rather than trigger
++
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
++
++	if (!vq) {
++		v4l2_err(&dev->v4l2_dev, "VQ gone!\n");
++		goto fail;
++	}
++
++	//        v4l2_info(&dev->v4l2_dev, "rpivid_h265_end of frame\n");
++	if (frame_end(dev, de, s))
++		goto fail;
++
++	for (i = 0; i < sh->num_active_dpb_entries; ++i) {
++		int buffer_index =
++			vb2_find_timestamp(vq, sh->dpb[i].timestamp, 0);
++		struct vb2_buffer *buf = buffer_index < 0 ?
++					NULL :
++					vb2_get_buffer(vq, buffer_index);
++
++		if (!buf) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Missing DPB ent %d, timestamp=%lld, index=%d\n",
++				  i, (long long)sh->dpb[i].timestamp,
++				  buffer_index);
++			continue;
++		}
++
++		if (use_aux) {
++			dpb_q_aux[i] = aux_q_ref(ctx,
++						 ctx->aux_ents[buffer_index]);
++			if (!dpb_q_aux[i])
++				v4l2_warn(&dev->v4l2_dev,
++					  "Missing DPB AUX ent %d index=%d\n",
++					  i, buffer_index);
++		}
++
++		de->ref_addrs[i] =
++			vb2_dma_contig_plane_dma_addr(buf, 0);
++	}
++
++	// Move DPB from temp
++	for (i = 0; i != V4L2_HEVC_DPB_ENTRIES_NUM_MAX; ++i) {
++		aux_q_release(ctx, &s->ref_aux[i]);
++		s->ref_aux[i] = dpb_q_aux[i];
++	}
++	// Unref the old frame aux too - it is either in the DPB or not
++	// now
++	aux_q_release(ctx, &s->frame_aux);
++
++	if (use_aux) {
++		// New frame so new aux ent
++		// ??? Do we need this if non-ref ??? can we tell
++		s->frame_aux = aux_q_new(ctx, run->dst->vb2_buf.index);
++
++		if (!s->frame_aux) {
++			v4l2_err(&dev->v4l2_dev,
++				 "Failed to obtain aux storage for frame\n");
++			goto fail;
++		}
++
++		de->frame_aux = aux_q_ref(ctx, s->frame_aux);
++	}
++
++	if (de->dpbno_col != ~0U) {
++		if (de->dpbno_col >= sh->num_active_dpb_entries) {
++			v4l2_err(&dev->v4l2_dev,
++				 "Col ref index %d >= %d\n",
++				 de->dpbno_col,
++				 sh->num_active_dpb_entries);
++		} else {
++			// Standard requires that the col pic is
++			// constant for the duration of the pic
++			// (text of collocated_ref_idx in H265-2 2018
++			// 7.4.7.1)
++
++			// Spot the collocated ref in passing
++			de->col_aux = aux_q_ref(ctx,
++						dpb_q_aux[de->dpbno_col]);
++
++			if (!de->col_aux) {
++				v4l2_warn(&dev->v4l2_dev,
++					  "Missing DPB ent for col\n");
++				// Probably need to abort if this fails
++				// as P2 may explode on bad data
++				goto fail;
++			}
++		}
++	}
++
++	de->state = RPIVID_DECODE_PHASE1;
++	return;
++
++fail:
++	if (de)
++		// Actual error reporting happens in Trigger
++		de->state = s->frame_end ? RPIVID_DECODE_ERROR_DONE :
++					   RPIVID_DECODE_ERROR_CONTINUE;
++}
++
++//////////////////////////////////////////////////////////////////////////////
++// Handle PU and COEFF stream overflow
++
++// Returns:
++// -1  Phase 1 decode error
++//  0  OK
++// >0  Out of space (bitmask)
++
++#define STATUS_COEFF_EXHAUSTED	8
++#define STATUS_PU_EXHAUSTED	16
++
++static int check_status(const struct rpivid_dev *const dev)
++{
++	const u32 cfstatus = apb_read(dev, RPI_CFSTATUS);
++	const u32 cfnum = apb_read(dev, RPI_CFNUM);
++	u32 status = apb_read(dev, RPI_STATUS);
++
++	// Handle PU and COEFF stream overflow
++
++	// this is the definition of successful completion of phase 1
++	// it assures that status register is zero and all blocks in each tile
++	// have completed
++	if (cfstatus == cfnum)
++		return 0;	//No error
++
++	status &= (STATUS_PU_EXHAUSTED | STATUS_COEFF_EXHAUSTED);
++	if (status)
++		return status;
++
++	return -1;
++}
++
++static void cb_phase2(struct rpivid_dev *const dev, void *v)
++{
++	struct rpivid_dec_env *const de = v;
++	struct rpivid_ctx *const ctx = de->ctx;
++
++	xtrace_in(dev, de);
++
++	v4l2_m2m_cap_buf_return(dev->m2m_dev, ctx->fh.m2m_ctx, de->frame_buf,
++				VB2_BUF_STATE_DONE);
++	de->frame_buf = NULL;
++
++	/* Delete de before finish as finish might immediately trigger a reuse
++	 * of de
++	 */
++	dec_env_delete(de);
++
++	if (atomic_add_return(-1, &ctx->p2out) >= RPIVID_P2BUF_COUNT - 1) {
++		xtrace_fin(dev, de);
++		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++						 VB2_BUF_STATE_DONE);
++	}
++
++	xtrace_ok(dev, de);
++}
++
++static void phase2_claimed(struct rpivid_dev *const dev, void *v)
++{
++	struct rpivid_dec_env *const de = v;
++	unsigned int i;
++
++	xtrace_in(dev, de);
++
++	apb_write_vc_addr(dev, RPI_PURBASE, de->pu_base_vc);
++	apb_write_vc_len(dev, RPI_PURSTRIDE, de->pu_stride);
++	apb_write_vc_addr(dev, RPI_COEFFRBASE, de->coeff_base_vc);
++	apb_write_vc_len(dev, RPI_COEFFRSTRIDE, de->coeff_stride);
++
++	apb_write_vc_addr(dev, RPI_OUTYBASE, de->frame_addr);
++	apb_write_vc_addr(dev, RPI_OUTCBASE,
++			  de->frame_addr + de->frame_c_offset);
++	apb_write_vc_len(dev, RPI_OUTYSTRIDE, de->frame_stride);
++	apb_write_vc_len(dev, RPI_OUTCSTRIDE, de->frame_stride);
++
++	//    v4l2_info(&dev->v4l2_dev, "Frame: Y=%llx, C=%llx, Stride=%x\n",
++	//              de->frame_addr, de->frame_addr + de->frame_c_offset,
++	//              de->frame_stride);
++
++	for (i = 0; i < 16; i++) {
++		// Strides are in fact unused but fill in anyway
++		apb_write_vc_addr(dev, 0x9000 + 16 * i, de->ref_addrs[i]);
++		apb_write_vc_len(dev, 0x9004 + 16 * i, de->frame_stride);
++		apb_write_vc_addr(dev, 0x9008 + 16 * i,
++				  de->ref_addrs[i] + de->frame_c_offset);
++		apb_write_vc_len(dev, 0x900C + 16 * i, de->frame_stride);
++	}
++
++	apb_write(dev, RPI_CONFIG2, de->rpi_config2);
++	apb_write(dev, RPI_FRAMESIZE, de->rpi_framesize);
++	apb_write(dev, RPI_CURRPOC, de->rpi_currpoc);
++	//    v4l2_info(&dev->v4l2_dev, "Config2=%#x, FrameSize=%#x, POC=%#x\n",
++	//    de->rpi_config2, de->rpi_framesize, de->rpi_currpoc);
++
++	// collocated reads/writes
++	apb_write_vc_len(dev, RPI_COLSTRIDE,
++			 de->ctx->colmv_stride); // Read vals
++	apb_write_vc_len(dev, RPI_MVSTRIDE,
++			 de->ctx->colmv_stride); // Write vals
++	apb_write_vc_addr(dev, RPI_MVBASE,
++			  !de->frame_aux ? 0 : de->frame_aux->col.addr);
++	apb_write_vc_addr(dev, RPI_COLBASE,
++			  !de->col_aux ? 0 : de->col_aux->col.addr);
++
++	//v4l2_info(&dev->v4l2_dev,
++	//	   "Mv=%llx, Col=%llx, Stride=%x, Buf=%llx->%llx\n",
++	//	   de->rpi_mvbase, de->rpi_colbase, de->ctx->colmv_stride,
++	//	   de->ctx->colmvbuf.addr, de->ctx->colmvbuf.addr +
++	//	   de->ctx->colmvbuf.size);
++
++	rpivid_hw_irq_active2_irq(dev, &de->irq_ent, cb_phase2, de);
++
++	apb_write_final(dev, RPI_NUMROWS, de->pic_height_in_ctbs_y);
++
++	xtrace_ok(dev, de);
++}
++
++static void phase1_claimed(struct rpivid_dev *const dev, void *v);
++
++static void phase1_thread(struct rpivid_dev *const dev, void *v)
++{
++	struct rpivid_dec_env *const de = v;
++	struct rpivid_ctx *const ctx = de->ctx;
++
++	struct rpivid_gptr *const pu_gptr = ctx->pu_bufs + ctx->p2idx;
++	struct rpivid_gptr *const coeff_gptr = ctx->coeff_bufs + ctx->p2idx;
++
++	xtrace_in(dev, de);
++
++	if (de->p1_status & STATUS_PU_EXHAUSTED) {
++		if (gptr_realloc_new(dev, pu_gptr, next_size(pu_gptr->size))) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: PU realloc (%#x) failed\n",
++				 __func__, pu_gptr->size);
++			goto fail;
++		}
++		v4l2_info(&dev->v4l2_dev, "%s: PU realloc (%#x) OK\n",
++			  __func__, pu_gptr->size);
++	}
++
++	if (de->p1_status & STATUS_COEFF_EXHAUSTED) {
++		if (gptr_realloc_new(dev, coeff_gptr,
++				     next_size(coeff_gptr->size))) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: Coeff realloc (%#x) failed\n",
++				 __func__, coeff_gptr->size);
++			goto fail;
++		}
++		v4l2_info(&dev->v4l2_dev, "%s: Coeff realloc (%#x) OK\n",
++			  __func__, coeff_gptr->size);
++	}
++
++	phase1_claimed(dev, de);
++	xtrace_ok(dev, de);
++	return;
++
++fail:
++	dec_env_delete(de);
++	xtrace_fin(dev, de);
++	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++					 VB2_BUF_STATE_ERROR);
++	xtrace_fail(dev, de);
++}
++
++/* Always called in irq context (this is good) */
++static void cb_phase1(struct rpivid_dev *const dev, void *v)
++{
++	struct rpivid_dec_env *const de = v;
++	struct rpivid_ctx *const ctx = de->ctx;
++
++	xtrace_in(dev, de);
++
++	de->p1_status = check_status(dev);
++	if (de->p1_status != 0) {
++		v4l2_info(&dev->v4l2_dev, "%s: Post wait: %#x\n",
++			  __func__, de->p1_status);
++
++		if (de->p1_status < 0)
++			goto fail;
++
++		/* Need to realloc - push onto a thread rather than IRQ */
++		rpivid_hw_irq_active1_thread(dev, &de->irq_ent,
++					     phase1_thread, de);
++		return;
++	}
++
++	/* After the frame-buf is detached it must be returned but from
++	 * this point onward (phase2_claimed, cb_phase2) there are no error
++	 * paths so the return at the end of cb_phase2 is all that is needed
++	 */
++	de->frame_buf = v4l2_m2m_cap_buf_detach(dev->m2m_dev, ctx->fh.m2m_ctx);
++	if (!de->frame_buf) {
++		v4l2_err(&dev->v4l2_dev, "%s: No detached buffer\n", __func__);
++		goto fail;
++	}
++
++	ctx->p2idx =
++		(ctx->p2idx + 1 >= RPIVID_P2BUF_COUNT) ? 0 : ctx->p2idx + 1;
++
++	// Enable the next setup if our Q isn't too big
++	if (atomic_add_return(1, &ctx->p2out) < RPIVID_P2BUF_COUNT) {
++		xtrace_fin(dev, de);
++		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++						 VB2_BUF_STATE_DONE);
++	}
++
++	rpivid_hw_irq_active2_claim(dev, &de->irq_ent, phase2_claimed, de);
++
++	xtrace_ok(dev, de);
++	return;
++
++fail:
++	dec_env_delete(de);
++	xtrace_fin(dev, de);
++	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++					 VB2_BUF_STATE_ERROR);
++	xtrace_fail(dev, de);
++}
++
++static void phase1_claimed(struct rpivid_dev *const dev, void *v)
++{
++	struct rpivid_dec_env *const de = v;
++	struct rpivid_ctx *const ctx = de->ctx;
++
++	const struct rpivid_gptr * const pu_gptr = ctx->pu_bufs + ctx->p2idx;
++	const struct rpivid_gptr * const coeff_gptr = ctx->coeff_bufs +
++						      ctx->p2idx;
++
++	xtrace_in(dev, de);
++
++	de->pu_base_vc = pu_gptr->addr;
++	de->pu_stride =
++		ALIGN_DOWN(pu_gptr->size / de->pic_height_in_ctbs_y, 64);
++
++	de->coeff_base_vc = coeff_gptr->addr;
++	de->coeff_stride =
++		ALIGN_DOWN(coeff_gptr->size / de->pic_height_in_ctbs_y, 64);
++
++	apb_write_vc_addr(dev, RPI_PUWBASE, de->pu_base_vc);
++	apb_write_vc_len(dev, RPI_PUWSTRIDE, de->pu_stride);
++	apb_write_vc_addr(dev, RPI_COEFFWBASE, de->coeff_base_vc);
++	apb_write_vc_len(dev, RPI_COEFFWSTRIDE, de->coeff_stride);
++
++	// Trigger command FIFO
++	apb_write(dev, RPI_CFNUM, de->cmd_len);
++
++	// Claim irq
++	rpivid_hw_irq_active1_irq(dev, &de->irq_ent, cb_phase1, de);
++
++	// And start the h/w
++	apb_write_vc_addr_final(dev, RPI_CFBASE, de->cmd_copy_gptr->addr);
++
++	xtrace_ok(dev, de);
++}
++
++static void dec_state_delete(struct rpivid_ctx *const ctx)
++{
++	unsigned int i;
++	struct rpivid_dec_state *const s = ctx->state;
++
++	if (!s)
++		return;
++	ctx->state = NULL;
++
++	free_ps_info(s);
++
++	for (i = 0; i != HEVC_MAX_REFS; ++i)
++		aux_q_release(ctx, &s->ref_aux[i]);
++	aux_q_release(ctx, &s->frame_aux);
++
++	kfree(s);
++}
++
++static void rpivid_h265_stop(struct rpivid_ctx *ctx)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++	unsigned int i;
++
++	v4l2_info(&dev->v4l2_dev, "%s\n", __func__);
++
++	dec_env_uninit(ctx);
++	dec_state_delete(ctx);
++
++	// dec_env & state must be killed before this to release the buffer to
++	// the free pool
++	aux_q_uninit(ctx);
++
++	for (i = 0; i != ARRAY_SIZE(ctx->bitbufs); ++i)
++		gptr_free(dev, ctx->bitbufs + i);
++	for (i = 0; i != ARRAY_SIZE(ctx->cmdbufs); ++i)
++		gptr_free(dev, ctx->cmdbufs + i);
++	for (i = 0; i != ARRAY_SIZE(ctx->pu_bufs); ++i)
++		gptr_free(dev, ctx->pu_bufs + i);
++	for (i = 0; i != ARRAY_SIZE(ctx->coeff_bufs); ++i)
++		gptr_free(dev, ctx->coeff_bufs + i);
++}
++
++static int rpivid_h265_start(struct rpivid_ctx *ctx)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++	unsigned int i;
++
++	unsigned int w = ctx->dst_fmt.width;
++	unsigned int h = ctx->dst_fmt.height;
++	unsigned int wxh;
++	size_t pu_alloc;
++	size_t coeff_alloc;
++
++	// Generate a sanitised WxH for memory alloc
++	// Assume HD if unset
++	if (w == 0)
++		w = 1920;
++	if (w > 4096)
++		w = 4096;
++	if (h == 0)
++		w = 1088;
++	if (h > 4096)
++		h = 4096;
++	wxh = w * h;
++
++	v4l2_info(&dev->v4l2_dev, "%s: (%dx%d)\n", __func__,
++		  ctx->dst_fmt.width, ctx->dst_fmt.height);
++
++	ctx->dec0 = NULL;
++	ctx->state = kzalloc(sizeof(*ctx->state), GFP_KERNEL);
++	if (!ctx->state) {
++		v4l2_err(&dev->v4l2_dev, "Failed to allocate decode state\n");
++		goto fail;
++	}
++
++	if (dec_env_init(ctx) != 0) {
++		v4l2_err(&dev->v4l2_dev, "Failed to allocate decode envs\n");
++		goto fail;
++	}
++
++	// 16k is plenty for most purposes but we will realloc if needed
++	for (i = 0; i != ARRAY_SIZE(ctx->cmdbufs); ++i) {
++		if (gptr_alloc(dev, ctx->cmdbufs + i, 0x4000,
++			       DMA_ATTR_FORCE_CONTIGUOUS))
++			goto fail;
++	}
++
++	// Finger in the air PU & Coeff alloc
++	// Will be realloced if too small
++	coeff_alloc = round_up_size(wxh);
++	pu_alloc = round_up_size(wxh / 4);
++	for (i = 0; i != ARRAY_SIZE(ctx->pu_bufs); ++i) {
++		// Don't actually need a kernel mapping here
++		if (gptr_alloc(dev, ctx->pu_bufs + i, pu_alloc,
++			       DMA_ATTR_FORCE_CONTIGUOUS |
++					DMA_ATTR_NO_KERNEL_MAPPING))
++			goto fail;
++		if (gptr_alloc(dev, ctx->coeff_bufs + i, coeff_alloc,
++			       DMA_ATTR_FORCE_CONTIGUOUS |
++					DMA_ATTR_NO_KERNEL_MAPPING))
++			goto fail;
++	}
++	aux_q_init(ctx);
++
++	return 0;
++
++fail:
++	rpivid_h265_stop(ctx);
++	return -ENOMEM;
++}
++
++static void rpivid_h265_trigger(struct rpivid_ctx *ctx)
++{
++	struct rpivid_dev *const dev = ctx->dev;
++	struct rpivid_dec_env *const de = ctx->dec0;
++
++	xtrace_in(dev, de);
++
++	switch (!de ? RPIVID_DECODE_ERROR_CONTINUE : de->state) {
++	case RPIVID_DECODE_SLICE_START:
++		de->state = RPIVID_DECODE_SLICE_CONTINUE;
++	/* FALLTHRU */
++	case RPIVID_DECODE_SLICE_CONTINUE:
++		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++						 VB2_BUF_STATE_DONE);
++		break;
++	default:
++		v4l2_err(&dev->v4l2_dev, "%s: Unexpected state: %d\n", __func__,
++			 de->state);
++	/* FALLTHRU */
++	case RPIVID_DECODE_ERROR_DONE:
++		ctx->dec0 = NULL;
++		dec_env_delete(de);
++	/* FALLTHRU */
++	case RPIVID_DECODE_ERROR_CONTINUE:
++		xtrace_fin(dev, de);
++		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++						 VB2_BUF_STATE_ERROR);
++		break;
++	case RPIVID_DECODE_PHASE1:
++		ctx->dec0 = NULL;
++		rpivid_hw_irq_active1_claim(dev, &de->irq_ent, phase1_claimed,
++					    de);
++		break;
++	}
++
++	xtrace_ok(dev, de);
++}
++
++struct rpivid_dec_ops rpivid_dec_ops_h265 = {
++	.setup = rpivid_h265_setup,
++	.start = rpivid_h265_start,
++	.stop = rpivid_h265_stop,
++	.trigger = rpivid_h265_trigger,
++};
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_hw.c
+@@ -0,0 +1,321 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++#include <linux/clk.h>
++#include <linux/component.h>
++#include <linux/dma-mapping.h>
++#include <linux/interrupt.h>
++#include <linux/io.h>
++#include <linux/of_reserved_mem.h>
++#include <linux/of_device.h>
++#include <linux/of_platform.h>
++#include <linux/platform_device.h>
++#include <linux/regmap.h>
++#include <linux/reset.h>
++
++#include <media/videobuf2-core.h>
++#include <media/v4l2-mem2mem.h>
++
++#include "rpivid.h"
++#include "rpivid_hw.h"
++
++static void pre_irq(struct rpivid_dev *dev, struct rpivid_hw_irq_ent *ient,
++		    rpivid_irq_callback cb, void *v,
++		    struct rpivid_hw_irq_ctrl *ictl)
++{
++	unsigned long flags;
++
++	if (ictl->irq) {
++		v4l2_err(&dev->v4l2_dev, "Attempt to claim IRQ when already claimed\n");
++		return;
++	}
++
++	ient->cb = cb;
++	ient->v = v;
++
++	// Not sure this lock is actually required
++	spin_lock_irqsave(&ictl->lock, flags);
++	ictl->irq = ient;
++	spin_unlock_irqrestore(&ictl->lock, flags);
++}
++
++static void sched_claim(struct rpivid_dev * const dev,
++			struct rpivid_hw_irq_ctrl * const ictl)
++{
++	for (;;) {
++		struct rpivid_hw_irq_ent *ient = NULL;
++		unsigned long flags;
++
++		spin_lock_irqsave(&ictl->lock, flags);
++
++		if (--ictl->no_sched <= 0) {
++			ient = ictl->claim;
++			if (!ictl->irq && ient) {
++				ictl->claim = ient->next;
++				ictl->no_sched = 1;
++			}
++		}
++
++		spin_unlock_irqrestore(&ictl->lock, flags);
++
++		if (!ient)
++			break;
++
++		ient->cb(dev, ient->v);
++	}
++}
++
++/* Should only ever be called from its own IRQ cb so no lock required */
++static void pre_thread(struct rpivid_dev *dev,
++		       struct rpivid_hw_irq_ent *ient,
++		       rpivid_irq_callback cb, void *v,
++		       struct rpivid_hw_irq_ctrl *ictl)
++{
++	ient->cb = cb;
++	ient->v = v;
++	ictl->irq = ient;
++	ictl->thread_reqed = true;
++	ictl->no_sched++;
++}
++
++// Called in irq context
++static void do_irq(struct rpivid_dev * const dev,
++		   struct rpivid_hw_irq_ctrl * const ictl)
++{
++	struct rpivid_hw_irq_ent *ient;
++	unsigned long flags;
++
++	spin_lock_irqsave(&ictl->lock, flags);
++	ient = ictl->irq;
++	if (ient) {
++		ictl->no_sched++;
++		ictl->irq = NULL;
++	}
++	spin_unlock_irqrestore(&ictl->lock, flags);
++
++	if (ient) {
++		ient->cb(dev, ient->v);
++
++		sched_claim(dev, ictl);
++	}
++}
++
++static void do_claim(struct rpivid_dev * const dev,
++		     struct rpivid_hw_irq_ent *ient,
++		     const rpivid_irq_callback cb, void * const v,
++		     struct rpivid_hw_irq_ctrl * const ictl)
++{
++	unsigned long flags;
++
++	ient->next = NULL;
++	ient->cb = cb;
++	ient->v = v;
++
++	spin_lock_irqsave(&ictl->lock, flags);
++
++	if (ictl->claim) {
++		// If we have a Q then add to end
++		ictl->tail->next = ient;
++		ictl->tail = ient;
++		ient = NULL;
++	} else if (ictl->no_sched || ictl->irq) {
++		// Empty Q but other activity in progress so Q
++		ictl->claim = ient;
++		ictl->tail = ient;
++		ient = NULL;
++	} else {
++		// Nothing else going on - schedule immediately and
++		// prevent anything else scheduling claims
++		ictl->no_sched = 1;
++	}
++
++	spin_unlock_irqrestore(&ictl->lock, flags);
++
++	if (ient) {
++		ient->cb(dev, ient->v);
++
++		sched_claim(dev, ictl);
++	}
++}
++
++static void ictl_init(struct rpivid_hw_irq_ctrl * const ictl)
++{
++	spin_lock_init(&ictl->lock);
++	ictl->claim = NULL;
++	ictl->tail = NULL;
++	ictl->irq = NULL;
++	ictl->no_sched = 0;
++}
++
++static void ictl_uninit(struct rpivid_hw_irq_ctrl * const ictl)
++{
++	// Nothing to do
++}
++
++#if !OPT_DEBUG_POLL_IRQ
++static irqreturn_t rpivid_irq_irq(int irq, void *data)
++{
++	struct rpivid_dev * const dev = data;
++	__u32 ictrl;
++
++	ictrl = irq_read(dev, ARG_IC_ICTRL);
++	if (!(ictrl & ARG_IC_ICTRL_ALL_IRQ_MASK)) {
++		v4l2_warn(&dev->v4l2_dev, "IRQ but no IRQ bits set\n");
++		return IRQ_NONE;
++	}
++
++	// Cancel any/all irqs
++	irq_write(dev, ARG_IC_ICTRL, ictrl & ~ARG_IC_ICTRL_SET_ZERO_MASK);
++
++	// Service Active2 before Active1 so Phase 1 can transition to Phase 2
++	// without delay
++	if (ictrl & ARG_IC_ICTRL_ACTIVE2_INT_SET)
++		do_irq(dev, &dev->ic_active2);
++	if (ictrl & ARG_IC_ICTRL_ACTIVE1_INT_SET)
++		do_irq(dev, &dev->ic_active1);
++
++	return dev->ic_active1.thread_reqed || dev->ic_active2.thread_reqed ?
++		IRQ_WAKE_THREAD : IRQ_HANDLED;
++}
++
++static void do_thread(struct rpivid_dev * const dev,
++		      struct rpivid_hw_irq_ctrl *const ictl)
++{
++	unsigned long flags;
++	struct rpivid_hw_irq_ent *ient = NULL;
++
++	spin_lock_irqsave(&ictl->lock, flags);
++
++	if (ictl->thread_reqed) {
++		ient = ictl->irq;
++		ictl->thread_reqed = false;
++		ictl->irq = NULL;
++	}
++
++	spin_unlock_irqrestore(&ictl->lock, flags);
++
++	if (ient) {
++		ient->cb(dev, ient->v);
++
++		sched_claim(dev, ictl);
++	}
++}
++
++static irqreturn_t rpivid_irq_thread(int irq, void *data)
++{
++	struct rpivid_dev * const dev = data;
++
++	do_thread(dev, &dev->ic_active1);
++	do_thread(dev, &dev->ic_active2);
++
++	return IRQ_HANDLED;
++}
++#endif
++
++/* May only be called from Active1 CB
++ * IRQs should not be expected until execution continues in the cb
++ */
++void rpivid_hw_irq_active1_thread(struct rpivid_dev *dev,
++				  struct rpivid_hw_irq_ent *ient,
++				  rpivid_irq_callback thread_cb, void *ctx)
++{
++	pre_thread(dev, ient, thread_cb, ctx, &dev->ic_active1);
++}
++
++void rpivid_hw_irq_active1_claim(struct rpivid_dev *dev,
++				 struct rpivid_hw_irq_ent *ient,
++				 rpivid_irq_callback ready_cb, void *ctx)
++{
++	do_claim(dev, ient, ready_cb, ctx, &dev->ic_active1);
++}
++
++void rpivid_hw_irq_active1_irq(struct rpivid_dev *dev,
++			       struct rpivid_hw_irq_ent *ient,
++			       rpivid_irq_callback irq_cb, void *ctx)
++{
++	pre_irq(dev, ient, irq_cb, ctx, &dev->ic_active1);
++}
++
++void rpivid_hw_irq_active2_claim(struct rpivid_dev *dev,
++				 struct rpivid_hw_irq_ent *ient,
++				 rpivid_irq_callback ready_cb, void *ctx)
++{
++	do_claim(dev, ient, ready_cb, ctx, &dev->ic_active2);
++}
++
++void rpivid_hw_irq_active2_irq(struct rpivid_dev *dev,
++			       struct rpivid_hw_irq_ent *ient,
++			       rpivid_irq_callback irq_cb, void *ctx)
++{
++	pre_irq(dev, ient, irq_cb, ctx, &dev->ic_active2);
++}
++
++int rpivid_hw_probe(struct rpivid_dev *dev)
++{
++	struct resource *res;
++	__u32 irq_stat;
++	int irq_dec;
++	int ret = 0;
++
++	ictl_init(&dev->ic_active1);
++	ictl_init(&dev->ic_active2);
++
++	res = platform_get_resource_byname(dev->pdev, IORESOURCE_MEM, "intc");
++	if (!res)
++		return -ENODEV;
++
++	dev->base_irq = devm_ioremap(dev->dev, res->start, resource_size(res));
++	if (IS_ERR(dev->base_irq))
++		return PTR_ERR(dev->base_irq);
++
++	res = platform_get_resource_byname(dev->pdev, IORESOURCE_MEM, "hevc");
++	if (!res)
++		return -ENODEV;
++
++	dev->base_h265 = devm_ioremap(dev->dev, res->start, resource_size(res));
++	if (IS_ERR(dev->base_h265))
++		return PTR_ERR(dev->base_h265);
++
++	dev->clock = devm_clk_get(&dev->pdev->dev, "hevc");
++	if (IS_ERR(dev->clock))
++		return PTR_ERR(dev->clock);
++
++	// Disable IRQs & reset anything pending
++	irq_write(dev, 0,
++		  ARG_IC_ICTRL_ACTIVE1_EN_SET | ARG_IC_ICTRL_ACTIVE2_EN_SET);
++	irq_stat = irq_read(dev, 0);
++	irq_write(dev, 0, irq_stat);
++
++#if !OPT_DEBUG_POLL_IRQ
++	irq_dec = platform_get_irq(dev->pdev, 0);
++	if (irq_dec <= 0)
++		return irq_dec;
++	ret = devm_request_threaded_irq(dev->dev, irq_dec,
++					rpivid_irq_irq,
++					rpivid_irq_thread,
++					0, dev_name(dev->dev), dev);
++	if (ret) {
++		dev_err(dev->dev, "Failed to request IRQ - %d\n", ret);
++
++		return ret;
++	}
++#endif
++	return ret;
++}
++
++void rpivid_hw_remove(struct rpivid_dev *dev)
++{
++	// IRQ auto freed on unload so no need to do it here
++	ictl_uninit(&dev->ic_active1);
++	ictl_uninit(&dev->ic_active2);
++}
++
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_hw.h
+@@ -0,0 +1,300 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#ifndef _RPIVID_HW_H_
++#define _RPIVID_HW_H_
++
++struct rpivid_hw_irq_ent {
++	struct rpivid_hw_irq_ent *next;
++	rpivid_irq_callback cb;
++	void *v;
++};
++
++/* Phase 1 Register offsets */
++
++#define RPI_SPS0 0
++#define RPI_SPS1 4
++#define RPI_PPS 8
++#define RPI_SLICE 12
++#define RPI_TILESTART 16
++#define RPI_TILEEND 20
++#define RPI_SLICESTART 24
++#define RPI_MODE 28
++#define RPI_LEFT0 32
++#define RPI_LEFT1 36
++#define RPI_LEFT2 40
++#define RPI_LEFT3 44
++#define RPI_QP 48
++#define RPI_CONTROL 52
++#define RPI_STATUS 56
++#define RPI_VERSION 60
++#define RPI_BFBASE 64
++#define RPI_BFNUM 68
++#define RPI_BFCONTROL 72
++#define RPI_BFSTATUS 76
++#define RPI_PUWBASE 80
++#define RPI_PUWSTRIDE 84
++#define RPI_COEFFWBASE 88
++#define RPI_COEFFWSTRIDE 92
++#define RPI_SLICECMDS 96
++#define RPI_BEGINTILEEND 100
++#define RPI_TRANSFER 104
++#define RPI_CFBASE 108
++#define RPI_CFNUM 112
++#define RPI_CFSTATUS 116
++
++/* Phase 2 Register offsets */
++
++#define RPI_PURBASE 0x8000
++#define RPI_PURSTRIDE 0x8004
++#define RPI_COEFFRBASE 0x8008
++#define RPI_COEFFRSTRIDE 0x800C
++#define RPI_NUMROWS 0x8010
++#define RPI_CONFIG2 0x8014
++#define RPI_OUTYBASE 0x8018
++#define RPI_OUTYSTRIDE 0x801C
++#define RPI_OUTCBASE 0x8020
++#define RPI_OUTCSTRIDE 0x8024
++#define RPI_STATUS2 0x8028
++#define RPI_FRAMESIZE 0x802C
++#define RPI_MVBASE 0x8030
++#define RPI_MVSTRIDE 0x8034
++#define RPI_COLBASE 0x8038
++#define RPI_COLSTRIDE 0x803C
++#define RPI_CURRPOC 0x8040
++
++/*
++ * Write a general register value
++ * Order is unimportant
++ */
++static inline void apb_write(const struct rpivid_dev * const dev,
++			     const unsigned int offset, const u32 val)
++{
++	writel_relaxed(val, dev->base_h265 + offset);
++}
++
++/* Write the final register value that actually starts the phase */
++static inline void apb_write_final(const struct rpivid_dev * const dev,
++				   const unsigned int offset, const u32 val)
++{
++	writel(val, dev->base_h265 + offset);
++}
++
++static inline u32 apb_read(const struct rpivid_dev * const dev,
++			   const unsigned int offset)
++{
++	return readl(dev->base_h265 + offset);
++}
++
++static inline void irq_write(const struct rpivid_dev * const dev,
++			     const unsigned int offset, const u32 val)
++{
++	writel(val, dev->base_irq + offset);
++}
++
++static inline u32 irq_read(const struct rpivid_dev * const dev,
++			   const unsigned int offset)
++{
++	return readl(dev->base_irq + offset);
++}
++
++static inline void apb_write_vc_addr(const struct rpivid_dev * const dev,
++				     const unsigned int offset,
++				     const dma_addr_t a)
++{
++	apb_write(dev, offset, (u32)(a >> 6));
++}
++
++static inline void apb_write_vc_addr_final(const struct rpivid_dev * const dev,
++					   const unsigned int offset,
++					   const dma_addr_t a)
++{
++	apb_write_final(dev, offset, (u32)(a >> 6));
++}
++
++static inline void apb_write_vc_len(const struct rpivid_dev * const dev,
++				    const unsigned int offset,
++				    const unsigned int x)
++{
++	apb_write(dev, offset, (x + 63) >> 6);
++}
++
++/* *ARG_IC_ICTRL - Interrupt control for ARGON Core*
++ * Offset (byte space) = 40'h2b10000
++ * Physical Address (byte space) = 40'h7eb10000
++ * Verilog Macro Address = `ARG_IC_REG_START + `ARGON_INTCTRL_ICTRL
++ * Reset Value = 32'b100x100x_100xxxxx_xxxxxxx0_x100x100
++ * Access = RW (32-bit only)
++ * Interrupt control logic for ARGON Core.
++ */
++#define ARG_IC_ICTRL 0
++
++/* acc=LWC ACTIVE1_INT FIELD ACCESS: LWC
++ *
++ * Interrupt 1
++ * This is set and held when an hevc_active1 interrupt edge is detected
++ * The polarity of the edge is set by the ACTIVE1_EDGE field
++ * Write a 1 to this bit to clear down the latched interrupt
++ * The latched interrupt is only enabled out onto the interrupt line if
++ * ACTIVE1_EN is set
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_ACTIVE1_INT_SET		BIT(0)
++
++/* ACTIVE1_EDGE Sets the polarity of the interrupt edge detection logic
++ * This logic detects edges of the hevc_active1 line from the argon core
++ * 0 = negedge, 1 = posedge
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_ACTIVE1_EDGE_SET		BIT(1)
++
++/* ACTIVE1_EN Enables ACTIVE1_INT out onto the argon interrupt line.
++ * If this isn't set, the interrupt logic will work but no interrupt will be
++ * set to the interrupt controller
++ * Reset value is *1* decimal.
++ *
++ * [JC] The above appears to be a lie - if unset then b0 is never set
++ */
++#define ARG_IC_ICTRL_ACTIVE1_EN_SET		BIT(2)
++
++/* acc=RO ACTIVE1_STATUS FIELD ACCESS: RO
++ *
++ * The current status of the hevc_active1 signal
++ */
++#define ARG_IC_ICTRL_ACTIVE1_STATUS_SET		BIT(3)
++
++/* acc=LWC ACTIVE2_INT FIELD ACCESS: LWC
++ *
++ * Interrupt 2
++ * This is set and held when an hevc_active2 interrupt edge is detected
++ * The polarity of the edge is set by the ACTIVE2_EDGE field
++ * Write a 1 to this bit to clear down the latched interrupt
++ * The latched interrupt is only enabled out onto the interrupt line if
++ * ACTIVE2_EN is set
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_ACTIVE2_INT_SET		BIT(4)
++
++/* ACTIVE2_EDGE Sets the polarity of the interrupt edge detection logic
++ * This logic detects edges of the hevc_active2 line from the argon core
++ * 0 = negedge, 1 = posedge
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_ACTIVE2_EDGE_SET		BIT(5)
++
++/* ACTIVE2_EN Enables ACTIVE2_INT out onto the argon interrupt line.
++ * If this isn't set, the interrupt logic will work but no interrupt will be
++ * set to the interrupt controller
++ * Reset value is *1* decimal.
++ */
++#define ARG_IC_ICTRL_ACTIVE2_EN_SET		BIT(6)
++
++/* acc=RO ACTIVE2_STATUS FIELD ACCESS: RO
++ *
++ * The current status of the hevc_active2 signal
++ */
++#define ARG_IC_ICTRL_ACTIVE2_STATUS_SET		BIT(7)
++
++/* TEST_INT Forces the argon int high for test purposes.
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_TEST_INT			BIT(8)
++#define ARG_IC_ICTRL_SPARE			BIT(9)
++
++/* acc=RO VP9_INTERRUPT_STATUS FIELD ACCESS: RO
++ *
++ * The current status of the vp9_interrupt signal
++ */
++#define ARG_IC_ICTRL_VP9_INTERRUPT_STATUS	BIT(10)
++
++/* AIO_INT_ENABLE 1 = Or the AIO int in with the Argon int so the VPU can see
++ * it
++ * 0 = the AIO int is masked. (It should still be connected to the GIC though).
++ */
++#define ARG_IC_ICTRL_AIO_INT_ENABLE		BIT(20)
++#define ARG_IC_ICTRL_H264_ACTIVE_INT		BIT(21)
++#define ARG_IC_ICTRL_H264_ACTIVE_EDGE		BIT(22)
++#define ARG_IC_ICTRL_H264_ACTIVE_EN		BIT(23)
++#define ARG_IC_ICTRL_H264_ACTIVE_STATUS		BIT(24)
++#define ARG_IC_ICTRL_H264_INTERRUPT_INT		BIT(25)
++#define ARG_IC_ICTRL_H264_INTERRUPT_EDGE	BIT(26)
++#define ARG_IC_ICTRL_H264_INTERRUPT_EN		BIT(27)
++
++/* acc=RO H264_INTERRUPT_STATUS FIELD ACCESS: RO
++ *
++ * The current status of the h264_interrupt signal
++ */
++#define ARG_IC_ICTRL_H264_INTERRUPT_STATUS	BIT(28)
++
++/* acc=LWC VP9_INTERRUPT_INT FIELD ACCESS: LWC
++ *
++ * Interrupt 1
++ * This is set and held when an vp9_interrupt interrupt edge is detected
++ * The polarity of the edge is set by the VP9_INTERRUPT_EDGE field
++ * Write a 1 to this bit to clear down the latched interrupt
++ * The latched interrupt is only enabled out onto the interrupt line if
++ * VP9_INTERRUPT_EN is set
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_VP9_INTERRUPT_INT		BIT(29)
++
++/* VP9_INTERRUPT_EDGE Sets the polarity of the interrupt edge detection logic
++ * This logic detects edges of the vp9_interrupt line from the argon h264 core
++ * 0 = negedge, 1 = posedge
++ * Reset value is *0* decimal.
++ */
++#define ARG_IC_ICTRL_VP9_INTERRUPT_EDGE		BIT(30)
++
++/* VP9_INTERRUPT_EN Enables VP9_INTERRUPT_INT out onto the argon interrupt line.
++ * If this isn't set, the interrupt logic will work but no interrupt will be
++ * set to the interrupt controller
++ * Reset value is *1* decimal.
++ */
++#define ARG_IC_ICTRL_VP9_INTERRUPT_EN		BIT(31)
++
++/* Bits 19:12, 11 reserved - read ?, write 0 */
++#define ARG_IC_ICTRL_SET_ZERO_MASK		((0xff << 12) | BIT(11))
++
++/* All IRQ bits */
++#define ARG_IC_ICTRL_ALL_IRQ_MASK   (\
++		ARG_IC_ICTRL_VP9_INTERRUPT_INT  |\
++		ARG_IC_ICTRL_H264_INTERRUPT_INT |\
++		ARG_IC_ICTRL_ACTIVE1_INT_SET    |\
++		ARG_IC_ICTRL_ACTIVE2_INT_SET)
++
++/* Auto release once all CBs called */
++void rpivid_hw_irq_active1_claim(struct rpivid_dev *dev,
++				 struct rpivid_hw_irq_ent *ient,
++				 rpivid_irq_callback ready_cb, void *ctx);
++/* May only be called in claim cb */
++void rpivid_hw_irq_active1_irq(struct rpivid_dev *dev,
++			       struct rpivid_hw_irq_ent *ient,
++			       rpivid_irq_callback irq_cb, void *ctx);
++/* May only be called in irq cb */
++void rpivid_hw_irq_active1_thread(struct rpivid_dev *dev,
++				  struct rpivid_hw_irq_ent *ient,
++				  rpivid_irq_callback thread_cb, void *ctx);
++
++/* Auto release once all CBs called */
++void rpivid_hw_irq_active2_claim(struct rpivid_dev *dev,
++				 struct rpivid_hw_irq_ent *ient,
++				 rpivid_irq_callback ready_cb, void *ctx);
++/* May only be called in claim cb */
++void rpivid_hw_irq_active2_irq(struct rpivid_dev *dev,
++			       struct rpivid_hw_irq_ent *ient,
++			       rpivid_irq_callback irq_cb, void *ctx);
++
++int rpivid_hw_probe(struct rpivid_dev *dev);
++void rpivid_hw_remove(struct rpivid_dev *dev);
++
++#endif
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -0,0 +1,593 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#include <media/videobuf2-dma-contig.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-mem2mem.h>
++
++#include "rpivid.h"
++#include "rpivid_video.h"
++#include "rpivid_dec.h"
++
++#define RPIVID_DECODE_SRC	BIT(0)
++#define RPIVID_DECODE_DST	BIT(1)
++
++#define RPIVID_MIN_WIDTH	16U
++#define RPIVID_MIN_HEIGHT	16U
++#define RPIVID_MAX_WIDTH	4096U
++#define RPIVID_MAX_HEIGHT	4096U
++
++static inline struct rpivid_ctx *rpivid_file2ctx(struct file *file)
++{
++	return container_of(file->private_data, struct rpivid_ctx, fh);
++}
++
++/* constrain x to y,y*2 */
++static inline unsigned int constrain2x(unsigned int x, unsigned int y)
++{
++	return (x < y) ?
++			y :
++			(x > y * 2) ? y : x;
++}
++
++int rpivid_prepare_src_format(struct v4l2_pix_format *pix_fmt)
++{
++	if (pix_fmt->pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
++		return -EINVAL;
++
++	/* Zero bytes per line for encoded source. */
++	pix_fmt->bytesperline = 0;
++	/* Choose some minimum size since this can't be 0 */
++	pix_fmt->sizeimage = max_t(u32, SZ_1K, pix_fmt->sizeimage);
++	pix_fmt->field = V4L2_FIELD_NONE;
++	return 0;
++}
++
++int rpivid_prepare_dst_format(struct v4l2_pix_format *pix_fmt)
++{
++	unsigned int width = pix_fmt->width;
++	unsigned int height = pix_fmt->height;
++	unsigned int sizeimage = pix_fmt->sizeimage;
++	unsigned int bytesperline = pix_fmt->bytesperline;
++
++	switch (pix_fmt->pixelformat) {
++	/* For column formats set bytesperline to column height (stride2) */
++	case V4L2_PIX_FMT_NV12_COL128:
++		/* Width rounds up to columns */
++		width = ALIGN(min(width, RPIVID_MAX_WIDTH), 128);
++
++		/* 16 aligned height - not sure we even need that */
++		height = ALIGN(height, 16);
++		/* column height
++		 * Accept suggested shape if at least min & < 2 * min
++		 */
++		bytesperline = constrain2x(bytesperline, height * 3 / 2);
++
++		/* image size
++		 * Again allow plausible variation in case added padding is
++		 * required
++		 */
++		sizeimage = constrain2x(sizeimage, bytesperline * width);
++		break;
++
++	case V4L2_PIX_FMT_NV12_10_COL128:
++		/* width in pixels (3 pels = 4 bytes) rounded to 128 byte
++		 * columns
++		 */
++		width = ALIGN(((min(width, RPIVID_MAX_WIDTH) + 2) / 3), 32) * 3;
++
++		/* 16-aligned height. */
++		height = ALIGN(height, 16);
++
++		/* column height
++		 * Accept suggested shape if at least min & < 2 * min
++		 */
++		bytesperline = constrain2x(bytesperline, height * 3 / 2);
++
++		/* image size
++		 * Again allow plausible variation in case added padding is
++		 * required
++		 */
++		sizeimage = constrain2x(sizeimage,
++					bytesperline * width * 4 / 3);
++		break;
++
++	default:
++		return -EINVAL;
++	}
++
++	pix_fmt->width = width;
++	pix_fmt->height = height;
++
++	pix_fmt->field = V4L2_FIELD_NONE;
++	pix_fmt->bytesperline = bytesperline;
++	pix_fmt->sizeimage = sizeimage;
++	return 0;
++}
++
++static int rpivid_querycap(struct file *file, void *priv,
++			   struct v4l2_capability *cap)
++{
++	strscpy(cap->driver, RPIVID_NAME, sizeof(cap->driver));
++	strscpy(cap->card, RPIVID_NAME, sizeof(cap->card));
++	snprintf(cap->bus_info, sizeof(cap->bus_info),
++		 "platform:%s", RPIVID_NAME);
++
++	return 0;
++}
++
++static int rpivid_enum_fmt_vid_out(struct file *file, void *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	// Input formats
++
++	// H.265 Slice only currently
++	if (f->index == 0) {
++		f->pixelformat = V4L2_PIX_FMT_HEVC_SLICE;
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int rpivid_hevc_validate_sps(const struct v4l2_ctrl_hevc_sps * const sps)
++{
++	const unsigned int ctb_log2_size_y =
++			sps->log2_min_luma_coding_block_size_minus3 + 3 +
++			sps->log2_diff_max_min_luma_coding_block_size;
++	const unsigned int min_tb_log2_size_y =
++			sps->log2_min_luma_transform_block_size_minus2 + 2;
++	const unsigned int max_tb_log2_size_y = min_tb_log2_size_y +
++			sps->log2_diff_max_min_luma_transform_block_size;
++
++	/* Local limitations */
++	if (sps->pic_width_in_luma_samples < 32 ||
++	    sps->pic_width_in_luma_samples > 4096)
++		return 0;
++	if (sps->pic_height_in_luma_samples < 32 ||
++	    sps->pic_height_in_luma_samples > 4096)
++		return 0;
++	if (!(sps->bit_depth_luma_minus8 == 0 ||
++	      sps->bit_depth_luma_minus8 == 2))
++		return 0;
++	if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8)
++		return 0;
++	if (sps->chroma_format_idc != 1)
++		return 0;
++
++	/*  Limits from H.265 7.4.3.2.1 */
++	if (sps->log2_max_pic_order_cnt_lsb_minus4 > 12)
++		return 0;
++	if (sps->sps_max_dec_pic_buffering_minus1 > 15)
++		return 0;
++	if (sps->sps_max_num_reorder_pics >
++				sps->sps_max_dec_pic_buffering_minus1)
++		return 0;
++	if (ctb_log2_size_y > 6)
++		return 0;
++	if (max_tb_log2_size_y > 5)
++		return 0;
++	if (max_tb_log2_size_y > ctb_log2_size_y)
++		return 0;
++	if (sps->max_transform_hierarchy_depth_inter >
++				(ctb_log2_size_y - min_tb_log2_size_y))
++		return 0;
++	if (sps->max_transform_hierarchy_depth_intra >
++				(ctb_log2_size_y - min_tb_log2_size_y))
++		return 0;
++	/* Check pcm stuff */
++	if (sps->num_short_term_ref_pic_sets > 64)
++		return 0;
++	if (sps->num_long_term_ref_pics_sps > 32)
++		return 0;
++	return 1;
++}
++
++static inline int is_sps_set(const struct v4l2_ctrl_hevc_sps * const sps)
++{
++	return sps && sps->pic_width_in_luma_samples != 0;
++}
++
++static u32 pixelformat_from_sps(const struct v4l2_ctrl_hevc_sps * const sps,
++				const int index)
++{
++	u32 pf = 0;
++
++	// Use width 0 as a signifier of unsetness
++	if (!is_sps_set(sps)) {
++		/* Treat this as an error? For now return both */
++		if (index == 0)
++			pf = V4L2_PIX_FMT_NV12_COL128;
++		else if (index == 1)
++			pf = V4L2_PIX_FMT_NV12_10_COL128;
++	} else if (index == 0 && rpivid_hevc_validate_sps(sps)) {
++		if (sps->bit_depth_luma_minus8 == 0)
++			pf = V4L2_PIX_FMT_NV12_COL128;
++		else if (sps->bit_depth_luma_minus8 == 2)
++			pf = V4L2_PIX_FMT_NV12_10_COL128;
++	}
++
++	return pf;
++}
++
++static struct v4l2_pix_format
++rpivid_hevc_default_dst_fmt(struct rpivid_ctx * const ctx)
++{
++	const struct v4l2_ctrl_hevc_sps * const sps =
++		rpivid_find_control_data(ctx, V4L2_CID_MPEG_VIDEO_HEVC_SPS);
++	struct v4l2_pix_format pix_fmt = {
++		.width = sps->pic_width_in_luma_samples,
++		.height = sps->pic_height_in_luma_samples,
++		.pixelformat = pixelformat_from_sps(sps, 0)
++	};
++
++	rpivid_prepare_dst_format(&pix_fmt);
++	return pix_fmt;
++}
++
++static u32 rpivid_hevc_get_dst_pixelformat(struct rpivid_ctx * const ctx,
++					   const int index)
++{
++	const struct v4l2_ctrl_hevc_sps * const sps =
++		rpivid_find_control_data(ctx, V4L2_CID_MPEG_VIDEO_HEVC_SPS);
++
++	return pixelformat_from_sps(sps, index);
++}
++
++static int rpivid_enum_fmt_vid_cap(struct file *file, void *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	struct rpivid_ctx * const ctx = rpivid_file2ctx(file);
++
++	const u32 pf = rpivid_hevc_get_dst_pixelformat(ctx, f->index);
++
++	if (pf == 0)
++		return -EINVAL;
++
++	f->pixelformat = pf;
++	return 0;
++}
++
++static int rpivid_g_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
++
++	if (!ctx->dst_fmt_set)
++		ctx->dst_fmt = rpivid_hevc_default_dst_fmt(ctx);
++	f->fmt.pix = ctx->dst_fmt;
++	return 0;
++}
++
++static int rpivid_g_fmt_vid_out(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
++
++	f->fmt.pix = ctx->src_fmt;
++	return 0;
++}
++
++static inline void copy_color(struct v4l2_pix_format *d,
++			      const struct v4l2_pix_format *s)
++{
++	d->colorspace   = s->colorspace;
++	d->xfer_func    = s->xfer_func;
++	d->ycbcr_enc    = s->ycbcr_enc;
++	d->quantization = s->quantization;
++}
++
++static int rpivid_try_fmt_vid_cap(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
++	const struct v4l2_ctrl_hevc_sps * const sps =
++		rpivid_find_control_data(ctx, V4L2_CID_MPEG_VIDEO_HEVC_SPS);
++	u32 pixelformat;
++	int i;
++
++	/* Reject format types we don't support */
++	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
++		return -EINVAL;
++
++	for (i = 0; (pixelformat = pixelformat_from_sps(sps, i)) != 0; i++) {
++		if (f->fmt.pix.pixelformat == pixelformat)
++			break;
++	}
++
++	// If we can't use requested fmt then set to default
++	if (pixelformat == 0) {
++		pixelformat = pixelformat_from_sps(sps, 0);
++		// If we don't have a default then give up
++		if (pixelformat == 0)
++			return -EINVAL;
++	}
++
++	// We don't have any way of finding out colourspace so believe
++	// anything we are told - take anything set in src as a default
++	if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
++		copy_color(&f->fmt.pix, &ctx->src_fmt);
++
++	f->fmt.pix.pixelformat = pixelformat;
++	return rpivid_prepare_dst_format(&f->fmt.pix);
++}
++
++static int rpivid_try_fmt_vid_out(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
++		return -EINVAL;
++
++	if (rpivid_prepare_src_format(&f->fmt.pix)) {
++		// Set default src format
++		f->fmt.pix.pixelformat = RPIVID_SRC_PIXELFORMAT_DEFAULT;
++		rpivid_prepare_src_format(&f->fmt.pix);
++	}
++	return 0;
++}
++
++static int rpivid_s_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
++	struct vb2_queue *vq;
++	int ret;
++
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
++	if (vb2_is_busy(vq))
++		return -EBUSY;
++
++	ret = rpivid_try_fmt_vid_cap(file, priv, f);
++	if (ret)
++		return ret;
++
++	ctx->dst_fmt = f->fmt.pix;
++	ctx->dst_fmt_set = 1;
++
++	return 0;
++}
++
++static int rpivid_s_fmt_vid_out(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
++	struct vb2_queue *vq;
++	int ret;
++
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
++	if (vb2_is_busy(vq))
++		return -EBUSY;
++
++	ret = rpivid_try_fmt_vid_out(file, priv, f);
++	if (ret)
++		return ret;
++
++	ctx->src_fmt = f->fmt.pix;
++	ctx->dst_fmt_set = 0;  // Setting src invalidates dst
++
++	vq->subsystem_flags |=
++		VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
++
++	/* Propagate colorspace information to capture. */
++	copy_color(&ctx->dst_fmt, &f->fmt.pix);
++	return 0;
++}
++
++const struct v4l2_ioctl_ops rpivid_ioctl_ops = {
++	.vidioc_querycap		= rpivid_querycap,
++
++	.vidioc_enum_fmt_vid_cap	= rpivid_enum_fmt_vid_cap,
++	.vidioc_g_fmt_vid_cap		= rpivid_g_fmt_vid_cap,
++	.vidioc_try_fmt_vid_cap		= rpivid_try_fmt_vid_cap,
++	.vidioc_s_fmt_vid_cap		= rpivid_s_fmt_vid_cap,
++
++	.vidioc_enum_fmt_vid_out	= rpivid_enum_fmt_vid_out,
++	.vidioc_g_fmt_vid_out		= rpivid_g_fmt_vid_out,
++	.vidioc_try_fmt_vid_out		= rpivid_try_fmt_vid_out,
++	.vidioc_s_fmt_vid_out		= rpivid_s_fmt_vid_out,
++
++	.vidioc_reqbufs			= v4l2_m2m_ioctl_reqbufs,
++	.vidioc_querybuf		= v4l2_m2m_ioctl_querybuf,
++	.vidioc_qbuf			= v4l2_m2m_ioctl_qbuf,
++	.vidioc_dqbuf			= v4l2_m2m_ioctl_dqbuf,
++	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
++	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
++	.vidioc_expbuf			= v4l2_m2m_ioctl_expbuf,
++
++	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
++	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,
++
++	.vidioc_try_decoder_cmd		= v4l2_m2m_ioctl_stateless_try_decoder_cmd,
++	.vidioc_decoder_cmd		= v4l2_m2m_ioctl_stateless_decoder_cmd,
++
++	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
++	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
++};
++
++static int rpivid_queue_setup(struct vb2_queue *vq, unsigned int *nbufs,
++			      unsigned int *nplanes, unsigned int sizes[],
++			      struct device *alloc_devs[])
++{
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
++	struct v4l2_pix_format *pix_fmt;
++
++	if (V4L2_TYPE_IS_OUTPUT(vq->type))
++		pix_fmt = &ctx->src_fmt;
++	else
++		pix_fmt = &ctx->dst_fmt;
++
++	if (*nplanes) {
++		if (sizes[0] < pix_fmt->sizeimage)
++			return -EINVAL;
++	} else {
++		sizes[0] = pix_fmt->sizeimage;
++		*nplanes = 1;
++	}
++
++	return 0;
++}
++
++static void rpivid_queue_cleanup(struct vb2_queue *vq, u32 state)
++{
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
++	struct vb2_v4l2_buffer *vbuf;
++
++	for (;;) {
++		if (V4L2_TYPE_IS_OUTPUT(vq->type))
++			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
++		else
++			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
++
++		if (!vbuf)
++			return;
++
++		v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req,
++					   &ctx->hdl);
++		v4l2_m2m_buf_done(vbuf, state);
++	}
++}
++
++static int rpivid_buf_out_validate(struct vb2_buffer *vb)
++{
++	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
++
++	vbuf->field = V4L2_FIELD_NONE;
++	return 0;
++}
++
++static int rpivid_buf_prepare(struct vb2_buffer *vb)
++{
++	struct vb2_queue *vq = vb->vb2_queue;
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
++	struct v4l2_pix_format *pix_fmt;
++
++	if (V4L2_TYPE_IS_OUTPUT(vq->type))
++		pix_fmt = &ctx->src_fmt;
++	else
++		pix_fmt = &ctx->dst_fmt;
++
++	if (vb2_plane_size(vb, 0) < pix_fmt->sizeimage)
++		return -EINVAL;
++
++	vb2_set_plane_payload(vb, 0, pix_fmt->sizeimage);
++
++	return 0;
++}
++
++static int rpivid_start_streaming(struct vb2_queue *vq, unsigned int count)
++{
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
++	struct rpivid_dev *dev = ctx->dev;
++	int ret = 0;
++
++	if (ctx->src_fmt.pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
++		return -EINVAL;
++
++	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->start)
++		ret = dev->dec_ops->start(ctx);
++
++	ret = clk_set_rate(dev->clock, 500 * 1000 * 1000);
++	if (ret) {
++		dev_err(dev->dev, "Failed to set clock rate\n");
++		goto out;
++	}
++
++	ret = clk_prepare_enable(dev->clock);
++	if (ret)
++		dev_err(dev->dev, "Failed to enable clock\n");
++
++out:
++	if (ret)
++		rpivid_queue_cleanup(vq, VB2_BUF_STATE_QUEUED);
++
++	return ret;
++}
++
++static void rpivid_stop_streaming(struct vb2_queue *vq)
++{
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
++	struct rpivid_dev *dev = ctx->dev;
++
++	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->stop)
++		dev->dec_ops->stop(ctx);
++
++	rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
++
++	clk_disable_unprepare(dev->clock);
++}
++
++static void rpivid_buf_queue(struct vb2_buffer *vb)
++{
++	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++
++	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
++}
++
++static void rpivid_buf_request_complete(struct vb2_buffer *vb)
++{
++	struct rpivid_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++
++	v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl);
++}
++
++static struct vb2_ops rpivid_qops = {
++	.queue_setup		= rpivid_queue_setup,
++	.buf_prepare		= rpivid_buf_prepare,
++	.buf_queue		= rpivid_buf_queue,
++	.buf_out_validate	= rpivid_buf_out_validate,
++	.buf_request_complete	= rpivid_buf_request_complete,
++	.start_streaming	= rpivid_start_streaming,
++	.stop_streaming		= rpivid_stop_streaming,
++	.wait_prepare		= vb2_ops_wait_prepare,
++	.wait_finish		= vb2_ops_wait_finish,
++};
++
++int rpivid_queue_init(void *priv, struct vb2_queue *src_vq,
++		      struct vb2_queue *dst_vq)
++{
++	struct rpivid_ctx *ctx = priv;
++	int ret;
++
++	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
++	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
++	src_vq->drv_priv = ctx;
++	src_vq->buf_struct_size = sizeof(struct rpivid_buffer);
++	src_vq->min_buffers_needed = 1;
++	src_vq->ops = &rpivid_qops;
++	src_vq->mem_ops = &vb2_dma_contig_memops;
++	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
++	src_vq->lock = &ctx->dev->dev_mutex;
++	src_vq->dev = ctx->dev->dev;
++	src_vq->supports_requests = true;
++	src_vq->requires_requests = true;
++
++	ret = vb2_queue_init(src_vq);
++	if (ret)
++		return ret;
++
++	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
++	dst_vq->drv_priv = ctx;
++	dst_vq->buf_struct_size = sizeof(struct rpivid_buffer);
++	dst_vq->min_buffers_needed = 1;
++	dst_vq->ops = &rpivid_qops;
++	dst_vq->mem_ops = &vb2_dma_contig_memops;
++	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
++	dst_vq->lock = &ctx->dev->dev_mutex;
++	dst_vq->dev = ctx->dev->dev;
++
++	return vb2_queue_init(dst_vq);
++}
+--- /dev/null
++++ b/drivers/staging/media/rpivid/rpivid_video.h
+@@ -0,0 +1,30 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Raspberry Pi HEVC driver
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd
++ *
++ * Based on the Cedrus VPU driver, that is:
++ *
++ * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
++ * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
++ * Copyright (C) 2018 Bootlin
++ */
++
++#ifndef _RPIVID_VIDEO_H_
++#define _RPIVID_VIDEO_H_
++
++struct rpivid_format {
++	u32		pixelformat;
++	u32		directions;
++	unsigned int	capabilities;
++};
++
++extern const struct v4l2_ioctl_ops rpivid_ioctl_ops;
++
++int rpivid_queue_init(void *priv, struct vb2_queue *src_vq,
++		      struct vb2_queue *dst_vq);
++int rpivid_prepare_src_format(struct v4l2_pix_format *pix_fmt);
++int rpivid_prepare_dst_format(struct v4l2_pix_format *pix_fmt);
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0201-mmc-sdhci-Silence-MMC-warnings.patch b/target/linux/bcm27xx/patches-5.10/950-0201-mmc-sdhci-Silence-MMC-warnings.patch
new file mode 100644
index 0000000000..071aa0287c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0201-mmc-sdhci-Silence-MMC-warnings.patch
@@ -0,0 +1,42 @@
+From 966a8df34ba0d98908dd381f27f6cfd615b3cb74 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 6 Dec 2019 13:05:27 +0100
+Subject: [PATCH] mmc: sdhci: Silence MMC warnings
+
+When the MMC isn't plugged in, the driver will spam the console which is
+pretty annoying when using NFS.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/mmc/host/sdhci.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/drivers/mmc/host/sdhci.c
++++ b/drivers/mmc/host/sdhci.c
+@@ -41,7 +41,7 @@
+ 	pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
+ 
+ #define SDHCI_DUMP(f, x...) \
+-	pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
++	pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
+ 
+ #define MAX_TUNING_LOOP 40
+ 
+@@ -3126,7 +3126,7 @@ static void sdhci_timeout_timer(struct t
+ 	spin_lock_irqsave(&host->lock, flags);
+ 
+ 	if (host->cmd && !sdhci_data_line_cmd(host->cmd)) {
+-		pr_err("%s: Timeout waiting for hardware cmd interrupt.\n",
++		pr_debug("%s: Timeout waiting for hardware cmd interrupt.\n",
+ 		       mmc_hostname(host->mmc));
+ 		sdhci_dumpregs(host);
+ 
+@@ -3148,7 +3148,7 @@ static void sdhci_timeout_data_timer(str
+ 
+ 	if (host->data || host->data_cmd ||
+ 	    (host->cmd && sdhci_data_line_cmd(host->cmd))) {
+-		pr_err("%s: Timeout waiting for hardware interrupt.\n",
++		pr_debug("%s: Timeout waiting for hardware interrupt.\n",
+ 		       mmc_hostname(host->mmc));
+ 		sdhci_dumpregs(host);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0202-dt-bindings-clock-Add-a-binding-for-the-RPi-Firmware.patch b/target/linux/bcm27xx/patches-5.10/950-0202-dt-bindings-clock-Add-a-binding-for-the-RPi-Firmware.patch
new file mode 100644
index 0000000000..3cca6de751
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0202-dt-bindings-clock-Add-a-binding-for-the-RPi-Firmware.patch
@@ -0,0 +1,63 @@
+From 5567ea58dd5814de7dd1c9756ab985fd0f753bce Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 13 Feb 2020 17:51:09 +0100
+Subject: [PATCH] dt-bindings: clock: Add a binding for the RPi
+ Firmware clocks
+
+The firmare running on the RPi VideoCore can be used to discover and
+change the various clocks running in the BCM2711. Since devices will
+need to use them through the DT, let's add a pretty simple binding.
+
+Cc: Michael Turquette <mturquette@baylibre.com>
+Cc: Stephen Boyd <sboyd@kernel.org>
+Cc: Rob Herring <robh+dt@kernel.org>
+Cc: linux-clk@vger.kernel.org
+Cc: devicetree@vger.kernel.org
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../clock/raspberrypi,firmware-clocks.yaml    | 39 +++++++++++++++++++
+ 1 file changed, 39 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml
+@@ -0,0 +1,39 @@
++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/clock/raspberrypi,firmware-clocks.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: RaspberryPi Firmware Clocks Device Tree Bindings
++
++maintainers:
++  - Maxime Ripard <mripard@kernel.org>
++
++properties:
++  "#clock-cells":
++    const: 1
++
++  compatible:
++    const: raspberrypi,firmware-clocks
++
++  raspberrypi,firmware:
++    $ref: /schemas/types.yaml#/definitions/phandle
++    description: >
++      Phandle to the mailbox node to communicate with the firmware.
++
++required:
++  - "#clock-cells"
++  - compatible
++  - raspberrypi,firmware
++
++additionalProperties: false
++
++examples:
++  - |
++    firmware_clocks: firmware-clocks {
++        compatible = "raspberrypi,firmware-clocks";
++        raspberrypi,firmware = <&firmware>;
++        #clock-cells = <1>;
++    };
++
++...
diff --git a/target/linux/bcm27xx/patches-5.10/950-0203-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch b/target/linux/bcm27xx/patches-5.10/950-0203-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch
new file mode 100644
index 0000000000..13d9012610
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0203-dt-bindings-display-vc4-hdmi-Add-BCM2711-HDMI-contro.patch
@@ -0,0 +1,174 @@
+From 2cbd6432676b68e210f9ff4a1c1dd5d5463a6d6b Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 13 Feb 2020 16:45:24 +0100
+Subject: [PATCH] dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI
+ controllers bindings
+
+The HDMI controllers found in the BCM2711 SoC need some adjustments to the
+bindings, especially since the registers have been shuffled around in more
+register ranges.
+
+Cc: Rob Herring <robh+dt@kernel.org>
+Cc: devicetree@vger.kernel.org
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../bindings/display/brcm,bcm2835-hdmi.yaml   | 118 ++++++++++++++++--
+ 1 file changed, 109 insertions(+), 9 deletions(-)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
+@@ -11,24 +11,58 @@ maintainers:
+ 
+ properties:
+   compatible:
+-    const: brcm,bcm2835-hdmi
++    enum:
++      - brcm,bcm2835-hdmi
++      - brcm,bcm2711-hdmi0
++      - brcm,bcm2711-hdmi1
+ 
+   reg:
++    oneOf:
++      - items:
++        - description: HDMI register range
++        - description: HD register range
++
++      - items:
++        - description: HDMI controller register range
++        - description: DVP register range
++        - description: HDMI PHY register range
++        - description: Rate Manager register range
++        - description: Packet RAM register range
++        - description: Metadata RAM register range
++        - description: CSC register range
++        - description: CEC register range
++        - description: HD register range
++
++  reg-names:
+     items:
+-      - description: HDMI register range
+-      - description: HD register range
++      - const: hdmi
++      - const: dvp
++      - const: phy
++      - const: rm
++      - const: packet
++      - const: metadata
++      - const: csc
++      - const: cec
++      - const: hd
+ 
+   interrupts:
+     minItems: 2
+ 
+   clocks:
+-    items:
+-      - description: The pixel clock
+-      - description: The HDMI state machine clock
++    oneOf:
++      - items:
++        - description: The pixel clock
++        - description: The HDMI state machine clock
++
++      - items:
++        - description: The HDMI state machine clock
+ 
+   clock-names:
+-    items:
+-      - const: pixel
++    oneOf:
++      - items:
++        - const: pixel
++        - const: hdmi
++
+       - const: hdmi
+ 
+   ddc:
+@@ -50,15 +84,54 @@ properties:
+   dma-names:
+     const: audio-rx
+ 
++  resets:
++    maxItems: 1
++
+ required:
+   - compatible
+   - reg
+-  - interrupts
+   - clocks
+   - ddc
+ 
+ additionalProperties: false
+ 
++if:
++  properties:
++    compatible:
++      contains:
++        enum:
++          - brcm,bcm2711-hdmi0
++          - brcm,bcm2711-hdmi1
++
++then:
++  properties:
++    reg:
++      minItems: 9
++
++    clocks:
++      maxItems: 1
++
++    clock-names:
++      maxItems: 1
++
++  required:
++    - reg-names
++    - resets
++
++else:
++  properties:
++    reg:
++      maxItems: 2
++
++    clocks:
++      minItems: 2
++
++    clock-names:
++      minItems: 2
++
++  required:
++    - interrupts
++
+ examples:
+   - |
+     #include <dt-bindings/clock/bcm2835.h>
+@@ -76,4 +149,31 @@ examples:
+         clock-names = "pixel", "hdmi";
+     };
+ 
++  - |
++    hdmi0: hdmi@7ef00700 {
++        compatible = "brcm,bcm2711-hdmi0";
++        reg = <0x7ef00700 0x300>,
++              <0x7ef00300 0x200>,
++              <0x7ef00f00 0x80>,
++              <0x7ef00f80 0x80>,
++              <0x7ef01b00 0x200>,
++              <0x7ef01f00 0x400>,
++              <0x7ef00200 0x80>,
++              <0x7ef04300 0x100>,
++              <0x7ef20000 0x100>;
++        reg-names = "hdmi",
++                    "dvp",
++                    "phy",
++                    "rm",
++                    "packet",
++                    "metadata",
++                    "csc",
++                    "cec",
++                    "hd";
++        clocks = <&firmware_clocks 13>;
++        clock-names = "hdmi";
++        resets = <&dvp 0>;
++        ddc = <&ddc0>;
++    };
++
+ ...
diff --git a/target/linux/bcm27xx/patches-5.10/950-0204-drm-Checking-of-the-pitch-is-only-valid-for-linear-f.patch b/target/linux/bcm27xx/patches-5.10/950-0204-drm-Checking-of-the-pitch-is-only-valid-for-linear-f.patch
new file mode 100644
index 0000000000..44e0648700
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0204-drm-Checking-of-the-pitch-is-only-valid-for-linear-f.patch
@@ -0,0 +1,39 @@
+From c24a6aef5b7ef24fb5c6f83ada015b06bcc3c665 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 27 Jan 2020 10:22:44 +0000
+Subject: [PATCH] drm: Checking of the pitch is only valid for linear
+ formats
+
+framebuffer_check was computing a minimum pitch value and ensuring
+that the provided value was greater than this.
+That check is only valid if the format is linear.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/drm_framebuffer.c | 16 ++++++++++------
+ 1 file changed, 10 insertions(+), 6 deletions(-)
+
+--- a/drivers/gpu/drm/drm_framebuffer.c
++++ b/drivers/gpu/drm/drm_framebuffer.c
+@@ -217,12 +217,16 @@ static int framebuffer_check(struct drm_
+ 		if (min_pitch > UINT_MAX)
+ 			return -ERANGE;
+ 
+-		if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
+-			return -ERANGE;
++		if (r->modifier[i] == DRM_FORMAT_MOD_LINEAR) {
++			if ((uint64_t)height * r->pitches[i] + r->offsets[i] >
++								UINT_MAX)
++				return -ERANGE;
+ 
+-		if (block_size && r->pitches[i] < min_pitch) {
+-			DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
+-			return -EINVAL;
++			if (block_size && r->pitches[i] < min_pitch) {
++				DRM_DEBUG_KMS("bad pitch %u for plane %d\n",
++					      r->pitches[i], i);
++				return -EINVAL;
++			}
+ 		}
+ 
+ 		if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0205-overlays-Fix-dtc-warnings-in-i2c-gpio.patch b/target/linux/bcm27xx/patches-5.10/950-0205-overlays-Fix-dtc-warnings-in-i2c-gpio.patch
new file mode 100644
index 0000000000..43db2828bb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0205-overlays-Fix-dtc-warnings-in-i2c-gpio.patch
@@ -0,0 +1,24 @@
+From 987af76904b945d39b90e6a5294f8f2f691fb8fb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 8 Apr 2020 11:59:39 +0100
+Subject: [PATCH] overlays: Fix dtc warnings in i2c-gpio
+
+Better late than never.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+@@ -11,6 +11,9 @@
+ 		target-path = "/";
+ 
+ 		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
+ 			i2c_gpio: i2c@0 {
+ 				reg = <0xffffffff>;
+ 				compatible = "i2c-gpio";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0206-driver-char-rpivid-Remove-legacy-name-support.patch b/target/linux/bcm27xx/patches-5.10/950-0206-driver-char-rpivid-Remove-legacy-name-support.patch
new file mode 100644
index 0000000000..1e21fb17b0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0206-driver-char-rpivid-Remove-legacy-name-support.patch
@@ -0,0 +1,53 @@
+From 8967fee444367746114e366fd48331e56f0d36d6 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 20 Apr 2020 22:18:52 +0100
+Subject: [PATCH] driver: char: rpivid: Remove legacy name support
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/char/broadcom/rpivid-mem.c | 22 ----------------------
+ 1 file changed, 22 deletions(-)
+
+--- a/drivers/char/broadcom/rpivid-mem.c
++++ b/drivers/char/broadcom/rpivid-mem.c
+@@ -193,32 +193,11 @@ static int rpivid_mem_probe(struct platf
+ 		goto failed_device_create;
+ 	}
+ 
+-	/* Legacy alias */
+-	{
+-		char *oldname = kstrdup(priv->name, GFP_KERNEL);
+-
+-		oldname[1] = 'a';
+-		oldname[2] = 'r';
+-		oldname[3] = 'g';
+-		oldname[4] = 'o';
+-		oldname[5] = 'n';
+-		dev = device_create(priv->class, NULL, priv->devid + 1, NULL,
+-				    oldname + 1);
+-		kfree(oldname);
+-
+-		if (IS_ERR(dev)) {
+-			err = PTR_ERR(dev);
+-			goto failed_legacy_device_create;
+-		}
+-	}
+-
+ 	dev_info(priv->dev, "%s initialised: Registers at 0x%08lx length 0x%08lx",
+ 		priv->name, priv->regs_phys, priv->mem_window_len);
+ 
+ 	return 0;
+ 
+-failed_legacy_device_create:
+-	device_destroy(priv->class, priv->devid);
+ failed_device_create:
+ 	class_destroy(priv->class);
+ failed_class_create:
+@@ -238,7 +217,6 @@ static int rpivid_mem_remove(struct plat
+ 	struct device *dev = &pdev->dev;
+ 	struct rpivid_mem_priv *priv = platform_get_drvdata(pdev);
+ 
+-	device_destroy(priv->class, priv->devid + 1);
+ 	device_destroy(priv->class, priv->devid);
+ 	class_destroy(priv->class);
+ 	cdev_del(&priv->rpivid_mem_cdev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0207-spi-Force-CS_HIGH-if-GPIO-descriptors-are-used.patch b/target/linux/bcm27xx/patches-5.10/950-0207-spi-Force-CS_HIGH-if-GPIO-descriptors-are-used.patch
new file mode 100644
index 0000000000..64572594a5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0207-spi-Force-CS_HIGH-if-GPIO-descriptors-are-used.patch
@@ -0,0 +1,57 @@
+From 4b6c8cda93174f36754f549498c133ccaeaa2218 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 17 Apr 2020 10:46:19 +0100
+Subject: [PATCH] spi: Force CS_HIGH if GPIO descriptors are used
+
+Commit f3186dd87669 ("spi: Optionally use GPIO descriptors for CS GPIOs")
+amended of_spi_parse_dt() to always set SPI_CS_HIGH for SPI slaves whose
+Chip Select is defined by a "cs-gpios" devicetree property.
+
+This change breaks drivers whose probe functions set the mode field of
+the spi_device because in doing so they clear the SPI_CS_HIGH flag.
+
+Fix by setting SPI_CS_HIGH in spi_setup (under the same conditions as
+in of_spi_parse_dt()).
+
+See also: 83b2a8fe43bd ("spi: spidev: Fix CS polarity if GPIO descriptors are used")
+
+Fixes: f3186dd87669 ("spi: Optionally use GPIO descriptors for CS GPIOs")
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+
+SQUASH: spi: Demote SPI_CS_HIGH warning to KERN_DEBUG
+
+This warning is unavoidable from a client's perspective and
+doesn't indicate anything wrong (just surprising).
+
+SQUASH with "spi: use_gpio_descriptor fixup moved to spi_setup"
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/spi/spi.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -3338,6 +3338,7 @@ static int __spi_validate_bits_per_word(
+  */
+ int spi_setup(struct spi_device *spi)
+ {
++	struct spi_controller *ctlr = spi->controller;
+ 	unsigned	bad_bits, ugly_bits;
+ 	int		status;
+ 
+@@ -3355,6 +3356,14 @@ int spi_setup(struct spi_device *spi)
+ 		(SPI_TX_DUAL | SPI_TX_QUAD | SPI_TX_OCTAL |
+ 		 SPI_RX_DUAL | SPI_RX_QUAD | SPI_RX_OCTAL)))
+ 		return -EINVAL;
++
++	if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods &&
++	    ctlr->cs_gpiods[spi->chip_select] && !(spi->mode & SPI_CS_HIGH)) {
++		dev_dbg(&spi->dev,
++			"setup: forcing CS_HIGH (use_gpio_descriptors)\n");
++		spi->mode |= SPI_CS_HIGH;
++	}
++
+ 	/* help drivers fail *cleanly* when they need options
+ 	 * that aren't supported with their current controller
+ 	 * SPI_CS_WORD has a fallback software implementation,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0208-driver-char-rpivid-Don-t-map-more-than-wanted.patch b/target/linux/bcm27xx/patches-5.10/950-0208-driver-char-rpivid-Don-t-map-more-than-wanted.patch
new file mode 100644
index 0000000000..849c44197f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0208-driver-char-rpivid-Don-t-map-more-than-wanted.patch
@@ -0,0 +1,51 @@
+From 7b7873548f21f42e6d3032d038d3e8b2c2b22939 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 21 Apr 2020 11:30:23 +0100
+Subject: [PATCH] driver: char: rpivid: Don't map more than wanted
+
+Limit mappings to the permitted range, but don't map more than asked
+for otherwise we walk off the end of the allocated VMA.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/char/broadcom/rpivid-mem.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/drivers/char/broadcom/rpivid-mem.c
++++ b/drivers/char/broadcom/rpivid-mem.c
+@@ -100,6 +100,7 @@ static int rpivid_mem_mmap(struct file *
+ {
+ 	struct rpivid_mem_priv *priv;
+ 	unsigned long pages;
++	unsigned long len;
+ 
+ 	priv = file->private_data;
+ 	pages = priv->regs_phys >> PAGE_SHIFT;
+@@ -107,14 +108,13 @@ static int rpivid_mem_mmap(struct file *
+ 	 * The address decode is far larger than the actual number of registers.
+ 	 * Just map the whole lot in.
+ 	 */
+-	vma->vm_page_prot = phys_mem_access_prot(file, pages,
+-						 priv->mem_window_len,
++	len = min(vma->vm_end - vma->vm_start, priv->mem_window_len);
++	vma->vm_page_prot = phys_mem_access_prot(file, pages, len,
+ 						 vma->vm_page_prot);
+ 	vma->vm_ops = &rpivid_mem_vm_ops;
+ 	if (remap_pfn_range(vma, vma->vm_start,
+-			pages,
+-			priv->mem_window_len,
+-			vma->vm_page_prot)) {
++			    pages, len,
++			    vma->vm_page_prot)) {
+ 		return -EAGAIN;
+ 	}
+ 	return 0;
+@@ -156,7 +156,7 @@ static int rpivid_mem_probe(struct platf
+ 	ioresource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ 	if (ioresource) {
+ 		priv->regs_phys = ioresource->start;
+-		priv->mem_window_len = ioresource->end - ioresource->start;
++		priv->mem_window_len = (ioresource->end + 1) - ioresource->start;
+ 	} else {
+ 		dev_err(priv->dev, "failed to get IO resource");
+ 		err = -ENOENT;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0209-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch b/target/linux/bcm27xx/patches-5.10/950-0209-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch
new file mode 100644
index 0000000000..8e573e6e84
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0209-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch
@@ -0,0 +1,2709 @@
+From cbbd6cbf9376ae582e1141f41a0011341cac0fc5 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 1 Apr 2020 08:39:49 +0100
+Subject: [PATCH] media: bcm2835-unicam: Driver for CCP2/CSI2 camera
+ interface
+
+Add driver for the Unicam camera receiver block on
+BCM283x processors.
+
+This commit is made up of a series of changes cherry-picked from the
+rpi-4.19.y branch.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ MAINTAINERS                                   |    2 +-
+ drivers/media/platform/Kconfig                |    1 +
+ drivers/media/platform/Makefile               |    2 +
+ drivers/media/platform/bcm2835/Kconfig        |   14 +
+ drivers/media/platform/bcm2835/Makefile       |    3 +
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 2369 +++++++++++++++++
+ .../media/platform/bcm2835/vc4-regs-unicam.h  |  253 ++
+ 7 files changed, 2643 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/media/platform/bcm2835/Kconfig
+ create mode 100644 drivers/media/platform/bcm2835/Makefile
+ create mode 100644 drivers/media/platform/bcm2835/bcm2835-unicam.c
+ create mode 100644 drivers/media/platform/bcm2835/vc4-regs-unicam.h
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3425,7 +3425,7 @@ F:	Documentation/devicetree/bindings/med
+ F:	drivers/staging/media/rpivid
+ 
+ BROADCOM BCM2835 CAMERA DRIVER
+-M:	Dave Stevenson <dave.stevenson@raspberrypi.org>
++M:	Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
+ L:	linux-media@vger.kernel.org
+ S:	Maintained
+ F:	drivers/media/platform/bcm2835/
+--- a/drivers/media/platform/Kconfig
++++ b/drivers/media/platform/Kconfig
+@@ -152,6 +152,7 @@ source "drivers/media/platform/am437x/Kc
+ source "drivers/media/platform/xilinx/Kconfig"
+ source "drivers/media/platform/rcar-vin/Kconfig"
+ source "drivers/media/platform/atmel/Kconfig"
++source "drivers/media/platform/bcm2835/Kconfig"
+ source "drivers/media/platform/sunxi/Kconfig"
+ 
+ config VIDEO_TI_CAL
+--- a/drivers/media/platform/Makefile
++++ b/drivers/media/platform/Makefile
+@@ -79,4 +79,6 @@ obj-$(CONFIG_VIDEO_QCOM_CAMSS)		+= qcom/
+ 
+ obj-$(CONFIG_VIDEO_QCOM_VENUS)		+= qcom/venus/
+ 
++obj-y					+= bcm2835/
++
+ obj-y					+= sunxi/
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/Kconfig
+@@ -0,0 +1,14 @@
++# Broadcom VideoCore4 V4L2 camera support
++
++config VIDEO_BCM2835_UNICAM
++	tristate "Broadcom BCM2835 Unicam video capture driver"
++	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER
++	depends on ARCH_BCM2835 || COMPILE_TEST
++	select VIDEOBUF2_DMA_CONTIG
++	select V4L2_FWNODE
++	help
++	  Say Y here to enable V4L2 subdevice for CSI2 receiver.
++	  This is a V4L2 subdevice that interfaces directly to the VC4 peripheral.
++
++	   To compile this driver as a module, choose M here. The module
++	   will be called bcm2835-unicam.
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/Makefile
+@@ -0,0 +1,3 @@
++# Makefile for BCM2835 Unicam driver
++
++obj-$(CONFIG_VIDEO_BCM2835_UNICAM) += bcm2835-unicam.o
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -0,0 +1,2369 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * BCM2835 Unicam Capture Driver
++ *
++ * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd.
++ *
++ * Dave Stevenson <dave.stevenson@raspberrypi.com>
++ *
++ * Based on TI am437x driver by
++ *   Benoit Parrot <bparrot@ti.com>
++ *   Lad, Prabhakar <prabhakar.csengg@gmail.com>
++ *
++ * and TI CAL camera interface driver by
++ *    Benoit Parrot <bparrot@ti.com>
++ *
++ *
++ * There are two camera drivers in the kernel for BCM283x - this one
++ * and bcm2835-camera (currently in staging).
++ *
++ * This driver directly controls the Unicam peripheral - there is no
++ * involvement with the VideoCore firmware. Unicam receives CSI-2 or
++ * CCP2 data and writes it into SDRAM.
++ * The only potential processing options are to repack Bayer data into an
++ * alternate format, and applying windowing.
++ * The repacking does not shift the data, so can repack V4L2_PIX_FMT_Sxxxx10P
++ * to V4L2_PIX_FMT_Sxxxx10, or V4L2_PIX_FMT_Sxxxx12P to V4L2_PIX_FMT_Sxxxx12,
++ * but not generically up to V4L2_PIX_FMT_Sxxxx16. The driver will add both
++ * formats where the relevant formats are defined, and will automatically
++ * configure the repacking as required.
++ * Support for windowing may be added later.
++ *
++ * It should be possible to connect this driver to any sensor with a
++ * suitable output interface and V4L2 subdevice driver.
++ *
++ * bcm2835-camera uses the VideoCore firmware to control the sensor,
++ * Unicam, ISP, and all tuner control loops. Fully processed frames are
++ * delivered to the driver by the firmware. It only has sensor drivers
++ * for Omnivision OV5647, and Sony IMX219 sensors.
++ *
++ * The two drivers are mutually exclusive for the same Unicam instance.
++ * The VideoCore firmware checks the device tree configuration during boot.
++ * If it finds device tree nodes called csi0 or csi1 it will block the
++ * firmware from accessing the peripheral, and bcm2835-camera will
++ * not be able to stream data.
++ */
++
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/io.h>
++#include <linux/module.h>
++#include <linux/of_device.h>
++#include <linux/of_graph.h>
++#include <linux/pinctrl/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/pm_runtime.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <linux/videodev2.h>
++
++#include <media/v4l2-common.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-dev.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-dv-timings.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-fwnode.h>
++#include <media/videobuf2-dma-contig.h>
++
++#include "vc4-regs-unicam.h"
++
++#define UNICAM_MODULE_NAME	"unicam"
++#define UNICAM_VERSION		"0.1.0"
++
++static int debug;
++module_param(debug, int, 0644);
++MODULE_PARM_DESC(debug, "Debug level 0-3");
++
++#define unicam_dbg(level, dev, fmt, arg...)	\
++		v4l2_dbg(level, debug, &(dev)->v4l2_dev, fmt, ##arg)
++#define unicam_info(dev, fmt, arg...)	\
++		v4l2_info(&(dev)->v4l2_dev, fmt, ##arg)
++#define unicam_err(dev, fmt, arg...)	\
++		v4l2_err(&(dev)->v4l2_dev, fmt, ##arg)
++
++/* To protect against a dodgy sensor driver never returning an error from
++ * enum_mbus_code, set a maximum index value to be used.
++ */
++#define MAX_ENUM_MBUS_CODE	128
++
++/*
++ * Stride is a 16 bit register, but also has to be a multiple of 32.
++ */
++#define BPL_ALIGNMENT		32
++#define MAX_BYTESPERLINE	((1 << 16) - BPL_ALIGNMENT)
++/*
++ * Max width is therefore determined by the max stride divided by
++ * the number of bits per pixel. Take 32bpp as a
++ * worst case.
++ * No imposed limit on the height, so adopt a square image for want
++ * of anything better.
++ */
++#define MAX_WIDTH	(MAX_BYTESPERLINE / 4)
++#define MAX_HEIGHT	MAX_WIDTH
++/* Define a nominal minimum image size */
++#define MIN_WIDTH	16
++#define MIN_HEIGHT	16
++
++/*
++ * struct unicam_fmt - Unicam media bus format information
++ * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a.
++ * @repacked_fourcc: V4L2 pixel format FCC identifier if the data is expanded
++ * out to 16bpp. 0 if n/a.
++ * @code: V4L2 media bus format code.
++ * @depth: Bits per pixel as delivered from the source.
++ * @csi_dt: CSI data type.
++ * @check_variants: Flag to denote that there are multiple mediabus formats
++ *		still in the list that could match this V4L2 format.
++ */
++struct unicam_fmt {
++	u32	fourcc;
++	u32	repacked_fourcc;
++	u32	code;
++	u8	depth;
++	u8	csi_dt;
++	u8	check_variants;
++};
++
++static const struct unicam_fmt formats[] = {
++	/* YUV Formats */
++	{
++		.fourcc		= V4L2_PIX_FMT_YUYV,
++		.code		= MEDIA_BUS_FMT_YUYV8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_UYVY,
++		.code		= MEDIA_BUS_FMT_UYVY8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YVYU,
++		.code		= MEDIA_BUS_FMT_YVYU8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_VYUY,
++		.code		= MEDIA_BUS_FMT_VYUY8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YUYV,
++		.code		= MEDIA_BUS_FMT_YUYV8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_UYVY,
++		.code		= MEDIA_BUS_FMT_UYVY8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YVYU,
++		.code		= MEDIA_BUS_FMT_YVYU8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_VYUY,
++		.code		= MEDIA_BUS_FMT_VYUY8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++	/* RGB Formats */
++		.fourcc		= V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
++		.code		= MEDIA_BUS_FMT_RGB565_2X8_LE,
++		.depth		= 16,
++		.csi_dt		= 0x22,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
++		.code		= MEDIA_BUS_FMT_RGB565_2X8_BE,
++		.depth		= 16,
++		.csi_dt		= 0x22
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */
++		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
++		.depth		= 16,
++		.csi_dt		= 0x21,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */
++		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE,
++		.depth		= 16,
++		.csi_dt		= 0x21,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB24, /* rgb */
++		.code		= MEDIA_BUS_FMT_RGB888_1X24,
++		.depth		= 24,
++		.csi_dt		= 0x24,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_BGR24, /* bgr */
++		.code		= MEDIA_BUS_FMT_BGR888_1X24,
++		.depth		= 24,
++		.csi_dt		= 0x24,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB32, /* argb */
++		.code		= MEDIA_BUS_FMT_ARGB8888_1X32,
++		.depth		= 32,
++		.csi_dt		= 0x0,
++	}, {
++	/* Bayer Formats */
++		.fourcc		= V4L2_PIX_FMT_SBGGR8,
++		.code		= MEDIA_BUS_FMT_SBGGR8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG8,
++		.code		= MEDIA_BUS_FMT_SGBRG8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG8,
++		.code		= MEDIA_BUS_FMT_SGRBG8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB8,
++		.code		= MEDIA_BUS_FMT_SRGGB8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SBGGR10,
++		.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGBRG10,
++		.code		= MEDIA_BUS_FMT_SGBRG10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGRBG10,
++		.code		= MEDIA_BUS_FMT_SGRBG10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SRGGB10,
++		.code		= MEDIA_BUS_FMT_SRGGB10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SBGGR12,
++		.code		= MEDIA_BUS_FMT_SBGGR12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGBRG12,
++		.code		= MEDIA_BUS_FMT_SGBRG12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGRBG12,
++		.code		= MEDIA_BUS_FMT_SGRBG12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SRGGB12,
++		.code		= MEDIA_BUS_FMT_SRGGB12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR14P,
++		.code		= MEDIA_BUS_FMT_SBGGR14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG14P,
++		.code		= MEDIA_BUS_FMT_SGBRG14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG14P,
++		.code		= MEDIA_BUS_FMT_SGRBG14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB14P,
++		.code		= MEDIA_BUS_FMT_SRGGB14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++	/*
++	 * 16 bit Bayer formats could be supported, but there is no CSI2
++	 * data_type defined for raw 16, and no sensors that produce it at
++	 * present.
++	 */
++
++	/* Greyscale formats */
++		.fourcc		= V4L2_PIX_FMT_GREY,
++		.code		= MEDIA_BUS_FMT_Y8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_Y10P,
++		.repacked_fourcc = V4L2_PIX_FMT_Y10,
++		.code		= MEDIA_BUS_FMT_Y10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		/* NB There is no packed V4L2 fourcc for this format. */
++		.repacked_fourcc = V4L2_PIX_FMT_Y12,
++		.code		= MEDIA_BUS_FMT_Y12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	},
++};
++
++struct unicam_dmaqueue {
++	struct list_head	active;
++};
++
++struct unicam_buffer {
++	struct vb2_v4l2_buffer vb;
++	struct list_head list;
++};
++
++struct unicam_cfg {
++	/* peripheral base address */
++	void __iomem *base;
++	/* clock gating base address */
++	void __iomem *clk_gate_base;
++};
++
++#define MAX_POSSIBLE_PIX_FMTS (ARRAY_SIZE(formats))
++
++struct unicam_device {
++	/* V4l2 specific parameters */
++	/* Identifies video device for this channel */
++	struct video_device video_dev;
++	struct v4l2_ctrl_handler ctrl_handler;
++
++	struct v4l2_fwnode_endpoint endpoint;
++
++	struct v4l2_async_subdev asd;
++
++	/* unicam cfg */
++	struct unicam_cfg cfg;
++	/* clock handle */
++	struct clk *clock;
++	/* V4l2 device */
++	struct v4l2_device v4l2_dev;
++	struct media_device mdev;
++	struct media_pad pad;
++
++	/* parent device */
++	struct platform_device *pdev;
++	/* subdevice async Notifier */
++	struct v4l2_async_notifier notifier;
++	unsigned int sequence;
++
++	/* ptr to  sub device */
++	struct v4l2_subdev *sensor;
++	/* Pad config for the sensor */
++	struct v4l2_subdev_pad_config *sensor_config;
++	/* current input at the sub device */
++	int current_input;
++
++	/* Pointer pointing to current v4l2_buffer */
++	struct unicam_buffer *cur_frm;
++	/* Pointer pointing to next v4l2_buffer */
++	struct unicam_buffer *next_frm;
++
++	/* video capture */
++	const struct unicam_fmt	*fmt;
++	/* Used to store current pixel format */
++	struct v4l2_format v_fmt;
++	/* Used to store current mbus frame format */
++	struct v4l2_mbus_framefmt m_fmt;
++
++	unsigned int virtual_channel;
++	enum v4l2_mbus_type bus_type;
++	/*
++	 * Stores bus.mipi_csi2.flags for CSI2 sensors, or
++	 * bus.mipi_csi1.strobe for CCP2.
++	 */
++	unsigned int bus_flags;
++	unsigned int max_data_lanes;
++	unsigned int active_data_lanes;
++
++	struct v4l2_rect crop;
++
++	/* Currently selected input on subdev */
++	int input;
++
++	/* Buffer queue used in video-buf */
++	struct vb2_queue buffer_queue;
++	/* Queue of filled frames */
++	struct unicam_dmaqueue dma_queue;
++	/* IRQ lock for DMA queue */
++	spinlock_t dma_queue_lock;
++	/* lock used to access this structure */
++	struct mutex lock;
++	/* Flag to denote that we are processing buffers */
++	int streaming;
++};
++
++/* Hardware access */
++#define clk_write(dev, val) writel((val) | 0x5a000000, (dev)->clk_gate_base)
++#define clk_read(dev) readl((dev)->clk_gate_base)
++
++#define reg_read(dev, offset) readl((dev)->base + (offset))
++#define reg_write(dev, offset, val) writel(val, (dev)->base + (offset))
++
++#define reg_read_field(dev, offset, mask) get_field(reg_read((dev), (offset), \
++						    mask))
++
++static inline int get_field(u32 value, u32 mask)
++{
++	return (value & mask) >> __ffs(mask);
++}
++
++static inline void set_field(u32 *valp, u32 field, u32 mask)
++{
++	u32 val = *valp;
++
++	val &= ~mask;
++	val |= (field << __ffs(mask)) & mask;
++	*valp = val;
++}
++
++static inline void reg_write_field(struct unicam_cfg *dev, u32 offset,
++				   u32 field, u32 mask)
++{
++	u32 val = reg_read((dev), (offset));
++
++	set_field(&val, field, mask);
++	reg_write((dev), (offset), val);
++}
++
++/* Power management functions */
++static inline int unicam_runtime_get(struct unicam_device *dev)
++{
++	return pm_runtime_get_sync(&dev->pdev->dev);
++}
++
++static inline void unicam_runtime_put(struct unicam_device *dev)
++{
++	pm_runtime_put_sync(&dev->pdev->dev);
++}
++
++/* Format setup functions */
++static const struct unicam_fmt *find_format_by_code(u32 code)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(formats); i++) {
++		if (formats[i].code == code)
++			return &formats[i];
++	}
++
++	return NULL;
++}
++
++static int check_mbus_format(struct unicam_device *dev,
++			     const struct unicam_fmt *format)
++{
++	struct v4l2_subdev_mbus_code_enum mbus_code;
++	int ret = 0;
++	int i;
++
++	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
++		memset(&mbus_code, 0, sizeof(mbus_code));
++		mbus_code.index = i;
++		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
++				       NULL, &mbus_code);
++
++		if (!ret && mbus_code.code == format->code)
++			return 1;
++	}
++
++	return 0;
++}
++
++static const struct unicam_fmt *find_format_by_pix(struct unicam_device *dev,
++						   u32 pixelformat)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(formats); i++) {
++		if (formats[i].fourcc == pixelformat ||
++		    formats[i].repacked_fourcc == pixelformat) {
++			if (formats[i].check_variants &&
++			    !check_mbus_format(dev, &formats[i]))
++				continue;
++			return &formats[i];
++		}
++	}
++
++	return NULL;
++}
++
++static inline unsigned int bytes_per_line(u32 width,
++					  const struct unicam_fmt *fmt,
++					  u32 v4l2_fourcc)
++{
++	if (v4l2_fourcc == fmt->repacked_fourcc)
++		/* Repacking always goes to 16bpp */
++		return ALIGN(width << 1, BPL_ALIGNMENT);
++	else
++		return ALIGN((width * fmt->depth) >> 3, BPL_ALIGNMENT);
++}
++
++static int __subdev_get_format(struct unicam_device *dev,
++			       struct v4l2_mbus_framefmt *fmt)
++{
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++	};
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret < 0)
++		return ret;
++
++	*fmt = sd_fmt.format;
++
++	unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__,
++		   fmt->width, fmt->height, fmt->code);
++
++	return 0;
++}
++
++static int __subdev_set_format(struct unicam_device *dev,
++			       struct v4l2_mbus_framefmt *fmt)
++{
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++	};
++	int ret;
++
++	sd_fmt.format = *fmt;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret < 0)
++		return ret;
++
++	unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__,
++		   fmt->width, fmt->height, fmt->code);
++
++	return 0;
++}
++
++static int unicam_calc_format_size_bpl(struct unicam_device *dev,
++				       const struct unicam_fmt *fmt,
++				       struct v4l2_format *f)
++{
++	unsigned int min_bytesperline;
++
++	v4l_bound_align_image(&f->fmt.pix.width, MIN_WIDTH, MAX_WIDTH, 2,
++			      &f->fmt.pix.height, MIN_HEIGHT, MAX_HEIGHT, 0,
++			      0);
++
++	min_bytesperline = bytes_per_line(f->fmt.pix.width, fmt,
++					  f->fmt.pix.pixelformat);
++
++	if (f->fmt.pix.bytesperline > min_bytesperline &&
++	    f->fmt.pix.bytesperline <= MAX_BYTESPERLINE)
++		f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline,
++						BPL_ALIGNMENT);
++	else
++		f->fmt.pix.bytesperline = min_bytesperline;
++
++	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
++
++	unicam_dbg(3, dev, "%s: fourcc: %08X size: %dx%d bpl:%d img_size:%d\n",
++		   __func__,
++		   f->fmt.pix.pixelformat,
++		   f->fmt.pix.width, f->fmt.pix.height,
++		   f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
++
++	return 0;
++}
++
++static int unicam_reset_format(struct unicam_device *dev)
++{
++	struct v4l2_mbus_framefmt mbus_fmt;
++	int ret;
++
++	ret = __subdev_get_format(dev, &mbus_fmt);
++	if (ret) {
++		unicam_err(dev, "Failed to get_format - ret %d\n", ret);
++		return ret;
++	}
++
++	if (mbus_fmt.code != dev->fmt->code) {
++		unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
++			   dev->fmt->code, mbus_fmt.code);
++		return ret;
++	}
++
++	v4l2_fill_pix_format(&dev->v_fmt.fmt.pix, &mbus_fmt);
++	dev->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++
++	unicam_calc_format_size_bpl(dev, dev->fmt, &dev->v_fmt);
++
++	dev->m_fmt = mbus_fmt;
++
++	return 0;
++}
++
++static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr)
++{
++	/*
++	 * dmaaddr should be a 32-bit address with the top two bits set to 0x3
++	 * to signify uncached access through the Videocore memory controller.
++	 */
++	BUG_ON((dmaaddr >> 30) != 0x3);
++
++	reg_write(&dev->cfg, UNICAM_IBSA0, dmaaddr);
++	reg_write(&dev->cfg, UNICAM_IBEA0,
++		  dmaaddr + dev->v_fmt.fmt.pix.sizeimage);
++}
++
++static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
++{
++	dma_addr_t start_addr, cur_addr;
++	unsigned int stride = dev->v_fmt.fmt.pix.bytesperline;
++	struct unicam_buffer *frm = dev->cur_frm;
++
++	if (!frm)
++		return 0;
++
++	start_addr = vb2_dma_contig_plane_dma_addr(&frm->vb.vb2_buf, 0);
++	cur_addr = reg_read(&dev->cfg, UNICAM_IBWP);
++	return (unsigned int)(cur_addr - start_addr) / stride;
++}
++
++static inline void unicam_schedule_next_buffer(struct unicam_device *dev)
++{
++	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_buffer *buf;
++	dma_addr_t addr;
++
++	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
++	dev->next_frm = buf;
++	list_del(&buf->list);
++
++	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
++	unicam_wr_dma_addr(dev, addr);
++}
++
++static inline void unicam_process_buffer_complete(struct unicam_device *dev)
++{
++	dev->cur_frm->vb.field = dev->m_fmt.field;
++	dev->cur_frm->vb.sequence = dev->sequence++;
++
++	vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
++	dev->cur_frm = dev->next_frm;
++}
++
++/*
++ * unicam_isr : ISR handler for unicam capture
++ * @irq: irq number
++ * @dev_id: dev_id ptr
++ *
++ * It changes status of the captured buffer, takes next buffer from the queue
++ * and sets its address in unicam registers
++ */
++static irqreturn_t unicam_isr(int irq, void *dev)
++{
++	struct unicam_device *unicam = (struct unicam_device *)dev;
++	struct unicam_cfg *cfg = &unicam->cfg;
++	struct unicam_dmaqueue *dma_q = &unicam->dma_queue;
++	unsigned int lines_done = unicam_get_lines_done(dev);
++	unsigned int sequence = unicam->sequence;
++	int ista, sta;
++
++	/*
++	 * Don't service interrupts if not streaming.
++	 * Avoids issues if the VPU should enable the
++	 * peripheral without the kernel knowing (that
++	 * shouldn't happen, but causes issues if it does).
++	 */
++	if (!unicam->streaming)
++		return IRQ_HANDLED;
++
++	sta = reg_read(cfg, UNICAM_STA);
++	/* Write value back to clear the interrupts */
++	reg_write(cfg, UNICAM_STA, sta);
++
++	ista = reg_read(cfg, UNICAM_ISTA);
++	/* Write value back to clear the interrupts */
++	reg_write(cfg, UNICAM_ISTA, ista);
++
++	unicam_dbg(3, unicam, "ISR: ISTA: 0x%X, STA: 0x%X, sequence %d, lines done %d",
++		   ista, sta, sequence, lines_done);
++
++	if (!(sta && (UNICAM_IS | UNICAM_PI0)))
++		return IRQ_HANDLED;
++
++	if (ista & UNICAM_FSI) {
++		/*
++		 * Timestamp is to be when the first data byte was captured,
++		 * aka frame start.
++		 */
++		if (unicam->cur_frm)
++			unicam->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
++	}
++	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
++		/*
++		 * Ensure we have swapped buffers already as we can't
++		 * stop the peripheral. Overwrite the frame we've just
++		 * captured instead.
++		 */
++		if (unicam->cur_frm && unicam->cur_frm != unicam->next_frm)
++			unicam_process_buffer_complete(unicam);
++	}
++
++	/* Cannot swap buffer at frame end, there may be a race condition
++	 * where the HW does not actually swap it if the new frame has
++	 * already started.
++	 */
++	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
++		spin_lock(&unicam->dma_queue_lock);
++		if (!list_empty(&dma_q->active) &&
++		    unicam->cur_frm == unicam->next_frm)
++			unicam_schedule_next_buffer(unicam);
++		spin_unlock(&unicam->dma_queue_lock);
++	}
++
++	if (reg_read(&unicam->cfg, UNICAM_ICTL) & UNICAM_FCM) {
++		/* Switch out of trigger mode if selected */
++		reg_write_field(&unicam->cfg, UNICAM_ICTL, 1, UNICAM_TFC);
++		reg_write_field(&unicam->cfg, UNICAM_ICTL, 0, UNICAM_FCM);
++	}
++	return IRQ_HANDLED;
++}
++
++static int unicam_querycap(struct file *file, void *priv,
++			   struct v4l2_capability *cap)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
++	strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
++
++	snprintf(cap->bus_info, sizeof(cap->bus_info),
++		 "platform:%s", dev->v4l2_dev.name);
++
++	return 0;
++}
++
++static int unicam_enum_fmt_vid_cap(struct file *file, void  *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct v4l2_subdev_mbus_code_enum mbus_code;
++	const struct unicam_fmt *fmt = NULL;
++	int index = 0;
++	int ret = 0;
++	int i;
++
++	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
++		memset(&mbus_code, 0, sizeof(mbus_code));
++		mbus_code.index = i;
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
++				       NULL, &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx %d returned %d - index invalid\n",
++				   i, ret);
++			return -EINVAL;
++		}
++
++		fmt = find_format_by_code(mbus_code.code);
++		if (fmt) {
++			if (fmt->fourcc) {
++				if (index == f->index) {
++					f->pixelformat = fmt->fourcc;
++					break;
++				}
++				index++;
++			}
++			if (fmt->repacked_fourcc) {
++				if (index == f->index) {
++					f->pixelformat = fmt->repacked_fourcc;
++					break;
++				}
++				index++;
++			}
++		}
++	}
++
++	return 0;
++}
++
++static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	*f = dev->v_fmt;
++
++	return 0;
++}
++
++static
++const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev)
++{
++	struct v4l2_subdev_mbus_code_enum mbus_code;
++	const struct unicam_fmt *fmt = NULL;
++	int ret;
++	int j;
++
++	for (j = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++j) {
++		memset(&mbus_code, 0, sizeof(mbus_code));
++		mbus_code.index = j;
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
++				       &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx %d returned %d - continue\n",
++				   j, ret);
++			continue;
++		}
++
++		unicam_dbg(2, dev, "subdev %s: code: 0x%08x idx: %d\n",
++			   dev->sensor->name, mbus_code.code, j);
++
++		fmt = find_format_by_code(mbus_code.code);
++		unicam_dbg(2, dev, "fmt 0x%08x returned as %p, V4L2 FOURCC 0x%08x, csi_dt 0x%02x\n",
++			   mbus_code.code, fmt, fmt ? fmt->fourcc : 0,
++			   fmt ? fmt->csi_dt : 0);
++		if (fmt)
++			return fmt;
++	}
++
++	return NULL;
++}
++
++static int unicam_try_fmt_vid_cap(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_TRY,
++	};
++	struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
++	if (!fmt) {
++		/* Pixel format not supported by unicam. Choose the first
++		 * supported format, and let the sensor choose something else.
++		 */
++		unicam_dbg(3, dev, "Fourcc format (0x%08x) not found. Use first format.\n",
++			   f->fmt.pix.pixelformat);
++
++		fmt = &formats[0];
++		f->fmt.pix.pixelformat = fmt->fourcc;
++	}
++
++	v4l2_fill_mbus_format(mbus_fmt, &f->fmt.pix, fmt->code);
++	/*
++	 * No support for receiving interlaced video, so never
++	 * request it from the sensor subdev.
++	 */
++	mbus_fmt->field = V4L2_FIELD_NONE;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
++		return ret;
++
++	if (mbus_fmt->field != V4L2_FIELD_NONE)
++		unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
++
++	v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
++	if (mbus_fmt->code != fmt->code) {
++		/* Sensor has returned an alternate format */
++		fmt = find_format_by_code(mbus_fmt->code);
++		if (!fmt) {
++			/* The alternate format is one unicam can't support.
++			 * Find the first format that is supported by both, and
++			 * then set that.
++			 */
++			fmt = get_first_supported_format(dev);
++			mbus_fmt->code = fmt->code;
++
++			ret = v4l2_subdev_call(dev->sensor, pad, set_fmt,
++					       dev->sensor_config, &sd_fmt);
++			if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
++				return ret;
++
++			if (mbus_fmt->field != V4L2_FIELD_NONE)
++				unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
++
++			v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
++
++			if (mbus_fmt->code != fmt->code) {
++				/* We've set a format that the sensor reports
++				 * as being supported, but it refuses to set it.
++				 * Not much else we can do.
++				 * Assume that the sensor driver may accept the
++				 * format when it is set (rather than tried).
++				 */
++				unicam_err(dev, "Sensor won't accept default format, and Unicam can't support sensor default\n");
++			}
++		}
++
++		if (fmt->fourcc)
++			f->fmt.pix.pixelformat = fmt->fourcc;
++		else
++			f->fmt.pix.pixelformat = fmt->repacked_fourcc;
++	}
++
++	return unicam_calc_format_size_bpl(dev, fmt, f);
++}
++
++static int unicam_s_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct vb2_queue *q = &dev->buffer_queue;
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	if (vb2_is_busy(q))
++		return -EBUSY;
++
++	ret = unicam_try_fmt_vid_cap(file, priv, f);
++	if (ret < 0)
++		return ret;
++
++	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
++	if (!fmt) {
++		/* Unknown pixel format - adopt a default.
++		 * This shouldn't happen as try_fmt should have resolved any
++		 * issues first.
++		 */
++		fmt = get_first_supported_format(dev);
++		if (!fmt)
++			/* It shouldn't be possible to get here with no
++			 * supported formats
++			 */
++			return -EINVAL;
++		f->fmt.pix.pixelformat = fmt->fourcc;
++		return -EINVAL;
++	}
++
++	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, fmt->code);
++
++	ret = __subdev_set_format(dev, &mbus_fmt);
++	if (ret) {
++		unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
++			   __func__, ret);
++		return ret;
++	}
++
++	/* Just double check nothing has gone wrong */
++	if (mbus_fmt.code != fmt->code) {
++		unicam_dbg(3, dev,
++			   "%s subdev changed format on us, this should not happen\n",
++			   __func__);
++		return -EINVAL;
++	}
++
++	dev->fmt = fmt;
++	dev->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat;
++	dev->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline;
++	unicam_reset_format(dev);
++
++	unicam_dbg(3, dev, "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n",
++		   __func__, dev->v_fmt.fmt.pix.width,
++		   dev->v_fmt.fmt.pix.height, mbus_fmt.code,
++		   dev->v_fmt.fmt.pix.pixelformat);
++
++	*f = dev->v_fmt;
++
++	return 0;
++}
++
++static int unicam_queue_setup(struct vb2_queue *vq,
++			      unsigned int *nbuffers,
++			      unsigned int *nplanes,
++			      unsigned int sizes[],
++			      struct device *alloc_devs[])
++{
++	struct unicam_device *dev = vb2_get_drv_priv(vq);
++	unsigned int size = dev->v_fmt.fmt.pix.sizeimage;
++
++	if (vq->num_buffers + *nbuffers < 3)
++		*nbuffers = 3 - vq->num_buffers;
++
++	if (*nplanes) {
++		if (sizes[0] < size) {
++			unicam_err(dev, "sizes[0] %i < size %u\n", sizes[0],
++				   size);
++			return -EINVAL;
++		}
++		size = sizes[0];
++	}
++
++	*nplanes = 1;
++	sizes[0] = size;
++
++	return 0;
++}
++
++static int unicam_buffer_prepare(struct vb2_buffer *vb)
++{
++	struct unicam_device *dev = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
++					      vb.vb2_buf);
++	unsigned long size;
++
++	if (WARN_ON(!dev->fmt))
++		return -EINVAL;
++
++	size = dev->v_fmt.fmt.pix.sizeimage;
++	if (vb2_plane_size(vb, 0) < size) {
++		unicam_err(dev, "data will not fit into plane (%lu < %lu)\n",
++			   vb2_plane_size(vb, 0), size);
++		return -EINVAL;
++	}
++
++	vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
++	return 0;
++}
++
++static void unicam_buffer_queue(struct vb2_buffer *vb)
++{
++	struct unicam_device *dev = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
++					      vb.vb2_buf);
++	struct unicam_dmaqueue *dma_queue = &dev->dma_queue;
++	unsigned long flags = 0;
++
++	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	list_add_tail(&buf->list, &dma_queue->active);
++	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++}
++
++static void unicam_set_packing_config(struct unicam_device *dev)
++{
++	int pack, unpack;
++	u32 val;
++
++	if (dev->v_fmt.fmt.pix.pixelformat == dev->fmt->fourcc) {
++		unpack = UNICAM_PUM_NONE;
++		pack = UNICAM_PPM_NONE;
++	} else {
++		switch (dev->fmt->depth) {
++		case 8:
++			unpack = UNICAM_PUM_UNPACK8;
++			break;
++		case 10:
++			unpack = UNICAM_PUM_UNPACK10;
++			break;
++		case 12:
++			unpack = UNICAM_PUM_UNPACK12;
++			break;
++		case 14:
++			unpack = UNICAM_PUM_UNPACK14;
++			break;
++		case 16:
++			unpack = UNICAM_PUM_UNPACK16;
++			break;
++		default:
++			unpack = UNICAM_PUM_NONE;
++			break;
++		}
++
++		/* Repacking is always to 16bpp */
++		pack = UNICAM_PPM_PACK16;
++	}
++
++	val = 0;
++	set_field(&val, unpack, UNICAM_PUM_MASK);
++	set_field(&val, pack, UNICAM_PPM_MASK);
++	reg_write(&dev->cfg, UNICAM_IPIPE, val);
++}
++
++static void unicam_cfg_image_id(struct unicam_device *dev)
++{
++	struct unicam_cfg *cfg = &dev->cfg;
++
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 mode */
++		reg_write(cfg, UNICAM_IDI0,
++			  (dev->virtual_channel << 6) | dev->fmt->csi_dt);
++	} else {
++		/* CCP2 mode */
++		reg_write(cfg, UNICAM_IDI0, (0x80 | dev->fmt->csi_dt));
++	}
++}
++
++static void unicam_start_rx(struct unicam_device *dev, unsigned long addr)
++{
++	struct unicam_cfg *cfg = &dev->cfg;
++	int line_int_freq = dev->v_fmt.fmt.pix.height >> 2;
++	unsigned int i;
++	u32 val;
++
++	if (line_int_freq < 128)
++		line_int_freq = 128;
++
++	/* Enable lane clocks */
++	val = 1;
++	for (i = 0; i < dev->active_data_lanes; i++)
++		val = val << 2 | 1;
++	clk_write(cfg, val);
++
++	/* Basic init */
++	reg_write(cfg, UNICAM_CTRL, UNICAM_MEM);
++
++	/* Enable analogue control, and leave in reset. */
++	val = UNICAM_AR;
++	set_field(&val, 7, UNICAM_CTATADJ_MASK);
++	set_field(&val, 7, UNICAM_PTATADJ_MASK);
++	reg_write(cfg, UNICAM_ANA, val);
++	usleep_range(1000, 2000);
++
++	/* Come out of reset */
++	reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_AR);
++
++	/* Peripheral reset */
++	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR);
++	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR);
++
++	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE);
++
++	/* Enable Rx control. */
++	val = reg_read(cfg, UNICAM_CTRL);
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		set_field(&val, UNICAM_CPM_CSI2, UNICAM_CPM_MASK);
++		set_field(&val, UNICAM_DCM_STROBE, UNICAM_DCM_MASK);
++	} else {
++		set_field(&val, UNICAM_CPM_CCP2, UNICAM_CPM_MASK);
++		set_field(&val, dev->bus_flags, UNICAM_DCM_MASK);
++	}
++	/* Packet framer timeout */
++	set_field(&val, 0xf, UNICAM_PFT_MASK);
++	set_field(&val, 128, UNICAM_OET_MASK);
++	reg_write(cfg, UNICAM_CTRL, val);
++
++	reg_write(cfg, UNICAM_IHWIN, 0);
++	reg_write(cfg, UNICAM_IVWIN, 0);
++
++	/* AXI bus access QoS setup */
++	val = reg_read(&dev->cfg, UNICAM_PRI);
++	set_field(&val, 0, UNICAM_BL_MASK);
++	set_field(&val, 0, UNICAM_BS_MASK);
++	set_field(&val, 0xe, UNICAM_PP_MASK);
++	set_field(&val, 8, UNICAM_NP_MASK);
++	set_field(&val, 2, UNICAM_PT_MASK);
++	set_field(&val, 1, UNICAM_PE);
++	reg_write(cfg, UNICAM_PRI, val);
++
++	reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_DDL);
++
++	/* Always start in trigger frame capture mode (UNICAM_FCM set) */
++	val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM;
++	set_field(&val,  line_int_freq, UNICAM_LCIE_MASK);
++	reg_write(cfg, UNICAM_ICTL, val);
++	reg_write(cfg, UNICAM_STA, UNICAM_STA_MASK_ALL);
++	reg_write(cfg, UNICAM_ISTA, UNICAM_ISTA_MASK_ALL);
++
++	/* tclk_term_en */
++	reg_write_field(cfg, UNICAM_CLT, 2, UNICAM_CLT1_MASK);
++	/* tclk_settle */
++	reg_write_field(cfg, UNICAM_CLT, 6, UNICAM_CLT2_MASK);
++	/* td_term_en */
++	reg_write_field(cfg, UNICAM_DLT, 2, UNICAM_DLT1_MASK);
++	/* ths_settle */
++	reg_write_field(cfg, UNICAM_DLT, 6, UNICAM_DLT2_MASK);
++	/* trx_enable */
++	reg_write_field(cfg, UNICAM_DLT, 0, UNICAM_DLT3_MASK);
++
++	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_SOE);
++
++	/* Packet compare setup - required to avoid missing frame ends */
++	val = 0;
++	set_field(&val, 1, UNICAM_PCE);
++	set_field(&val, 1, UNICAM_GI);
++	set_field(&val, 1, UNICAM_CPH);
++	set_field(&val, 0, UNICAM_PCVC_MASK);
++	set_field(&val, 1, UNICAM_PCDT_MASK);
++	reg_write(cfg, UNICAM_CMP0, val);
++
++	/* Enable clock lane and set up terminations */
++	val = 0;
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 */
++		set_field(&val, 1, UNICAM_CLE);
++		set_field(&val, 1, UNICAM_CLLPE);
++		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
++			set_field(&val, 1, UNICAM_CLTRE);
++			set_field(&val, 1, UNICAM_CLHSE);
++		}
++	} else {
++		/* CCP2 */
++		set_field(&val, 1, UNICAM_CLE);
++		set_field(&val, 1, UNICAM_CLHSE);
++		set_field(&val, 1, UNICAM_CLTRE);
++	}
++	reg_write(cfg, UNICAM_CLK, val);
++
++	/*
++	 * Enable required data lanes with appropriate terminations.
++	 * The same value needs to be written to UNICAM_DATn registers for
++	 * the active lanes, and 0 for inactive ones.
++	 */
++	val = 0;
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 */
++		set_field(&val, 1, UNICAM_DLE);
++		set_field(&val, 1, UNICAM_DLLPE);
++		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
++			set_field(&val, 1, UNICAM_DLTRE);
++			set_field(&val, 1, UNICAM_DLHSE);
++		}
++	} else {
++		/* CCP2 */
++		set_field(&val, 1, UNICAM_DLE);
++		set_field(&val, 1, UNICAM_DLHSE);
++		set_field(&val, 1, UNICAM_DLTRE);
++	}
++	reg_write(cfg, UNICAM_DAT0, val);
++
++	if (dev->active_data_lanes == 1)
++		val = 0;
++	reg_write(cfg, UNICAM_DAT1, val);
++
++	if (dev->max_data_lanes > 2) {
++		/*
++		 * Registers UNICAM_DAT2 and UNICAM_DAT3 only valid if the
++		 * instance supports more than 2 data lanes.
++		 */
++		if (dev->active_data_lanes == 2)
++			val = 0;
++		reg_write(cfg, UNICAM_DAT2, val);
++
++		if (dev->active_data_lanes == 3)
++			val = 0;
++		reg_write(cfg, UNICAM_DAT3, val);
++	}
++
++	reg_write(&dev->cfg, UNICAM_IBLS, dev->v_fmt.fmt.pix.bytesperline);
++	unicam_wr_dma_addr(dev, addr);
++	unicam_set_packing_config(dev);
++	unicam_cfg_image_id(dev);
++
++	/* Disabled embedded data */
++	val = 0;
++	set_field(&val, 0, UNICAM_EDL_MASK);
++	reg_write(cfg, UNICAM_DCS, val);
++
++	val = reg_read(cfg, UNICAM_MISC);
++	set_field(&val, 1, UNICAM_FL0);
++	set_field(&val, 1, UNICAM_FL1);
++	reg_write(cfg, UNICAM_MISC, val);
++
++	/* Enable peripheral */
++	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPE);
++
++	/* Load image pointers */
++	reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_LIP_MASK);
++
++	/*
++	 * Enable trigger only for the first frame to
++	 * sync correctly to the FS from the source.
++	 */
++	reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_TFC);
++}
++
++static void unicam_disable(struct unicam_device *dev)
++{
++	struct unicam_cfg *cfg = &dev->cfg;
++
++	/* Analogue lane control disable */
++	reg_write_field(cfg, UNICAM_ANA, 1, UNICAM_DDL);
++
++	/* Stop the output engine */
++	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_SOE);
++
++	/* Disable the data lanes. */
++	reg_write(cfg, UNICAM_DAT0, 0);
++	reg_write(cfg, UNICAM_DAT1, 0);
++
++	if (dev->max_data_lanes > 2) {
++		reg_write(cfg, UNICAM_DAT2, 0);
++		reg_write(cfg, UNICAM_DAT3, 0);
++	}
++
++	/* Peripheral reset */
++	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR);
++	usleep_range(50, 100);
++	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR);
++
++	/* Disable peripheral */
++	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE);
++
++	/* Disable all lane clocks */
++	clk_write(cfg, 0);
++}
++
++static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count)
++{
++	struct unicam_device *dev = vb2_get_drv_priv(vq);
++	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_buffer *buf, *tmp;
++	unsigned long addr = 0;
++	unsigned long flags;
++	int ret;
++
++	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
++	dev->cur_frm = buf;
++	dev->next_frm = buf;
++	list_del(&buf->list);
++	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++
++	addr = vb2_dma_contig_plane_dma_addr(&dev->cur_frm->vb.vb2_buf, 0);
++	dev->sequence = 0;
++
++	ret = unicam_runtime_get(dev);
++	if (ret < 0) {
++		unicam_dbg(3, dev, "unicam_runtime_get failed\n");
++		goto err_release_buffers;
++	}
++
++	dev->active_data_lanes = dev->max_data_lanes;
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY &&
++	    v4l2_subdev_has_op(dev->sensor, video, g_mbus_config)) {
++		struct v4l2_mbus_config mbus_config;
++
++		ret = v4l2_subdev_call(dev->sensor, video, g_mbus_config,
++				       &mbus_config);
++		if (ret < 0) {
++			unicam_dbg(3, dev, "g_mbus_config failed\n");
++			goto err_pm_put;
++		}
++
++		dev->active_data_lanes =
++			(mbus_config.flags & V4L2_MBUS_CSI2_LANE_MASK) >>
++					__ffs(V4L2_MBUS_CSI2_LANE_MASK);
++		if (!dev->active_data_lanes)
++			dev->active_data_lanes = dev->max_data_lanes;
++	}
++	if (dev->active_data_lanes > dev->max_data_lanes) {
++		unicam_err(dev, "Device has requested %u data lanes, which is >%u configured in DT\n",
++			   dev->active_data_lanes, dev->max_data_lanes);
++		ret = -EINVAL;
++		goto err_pm_put;
++	}
++
++	unicam_dbg(1, dev, "Running with %u data lanes\n",
++		   dev->active_data_lanes);
++
++	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
++	if (ret) {
++		unicam_err(dev, "failed to set up clock\n");
++		goto err_pm_put;
++	}
++
++	ret = clk_prepare_enable(dev->clock);
++	if (ret) {
++		unicam_err(dev, "Failed to enable CSI clock: %d\n", ret);
++		goto err_pm_put;
++	}
++	dev->streaming = 1;
++
++	unicam_start_rx(dev, addr);
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1);
++	if (ret < 0) {
++		unicam_err(dev, "stream on failed in subdev\n");
++		goto err_disable_unicam;
++	}
++
++	return 0;
++
++err_disable_unicam:
++	unicam_disable(dev);
++	clk_disable_unprepare(dev->clock);
++err_pm_put:
++	unicam_runtime_put(dev);
++err_release_buffers:
++	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
++		list_del(&buf->list);
++		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
++	}
++	if (dev->cur_frm != dev->next_frm)
++		vb2_buffer_done(&dev->next_frm->vb.vb2_buf,
++				VB2_BUF_STATE_QUEUED);
++	vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
++	dev->next_frm = NULL;
++	dev->cur_frm = NULL;
++
++	return ret;
++}
++
++static void unicam_stop_streaming(struct vb2_queue *vq)
++{
++	struct unicam_device *dev = vb2_get_drv_priv(vq);
++	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_buffer *buf, *tmp;
++	unsigned long flags;
++
++	if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0)
++		unicam_err(dev, "stream off failed in subdev\n");
++
++	unicam_disable(dev);
++
++	/* Release all active buffers */
++	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
++		list_del(&buf->list);
++		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++	}
++
++	if (dev->cur_frm == dev->next_frm) {
++		vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++	} else {
++		vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++		vb2_buffer_done(&dev->next_frm->vb.vb2_buf,
++				VB2_BUF_STATE_ERROR);
++	}
++	dev->cur_frm = NULL;
++	dev->next_frm = NULL;
++	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++
++	clk_disable_unprepare(dev->clock);
++	unicam_runtime_put(dev);
++}
++
++static int unicam_enum_input(struct file *file, void *priv,
++			     struct v4l2_input *inp)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	if (inp->index != 0)
++		return -EINVAL;
++
++	inp->type = V4L2_INPUT_TYPE_CAMERA;
++	if (v4l2_subdev_has_op(dev->sensor, video, s_dv_timings)) {
++		inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
++		inp->std = 0;
++	} else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) {
++		inp->capabilities = V4L2_IN_CAP_STD;
++		if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std)
++					< 0)
++			inp->std = V4L2_STD_ALL;
++	} else {
++		inp->capabilities = 0;
++		inp->std = 0;
++	}
++	sprintf(inp->name, "Camera 0");
++	return 0;
++}
++
++static int unicam_g_input(struct file *file, void *priv, unsigned int *i)
++{
++	*i = 0;
++
++	return 0;
++}
++
++static int unicam_s_input(struct file *file, void *priv, unsigned int i)
++{
++	/*
++	 * FIXME: Ideally we would like to be able to query the source
++	 * subdevice for information over the input connectors it supports,
++	 * and map that through in to a call to video_ops->s_routing.
++	 * There is no infrastructure support for defining that within
++	 * devicetree at present. Until that is implemented we can't
++	 * map a user physical connector number to s_routing input number.
++	 */
++	if (i > 0)
++		return -EINVAL;
++
++	return 0;
++}
++
++static int unicam_querystd(struct file *file, void *priv,
++			   v4l2_std_id *std)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, video, querystd, std);
++}
++
++static int unicam_g_std(struct file *file, void *priv, v4l2_std_id *std)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, video, g_std, std);
++}
++
++static int unicam_s_std(struct file *file, void *priv, v4l2_std_id std)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	int ret;
++	v4l2_std_id current_std;
++
++	ret = v4l2_subdev_call(dev->sensor, video, g_std, &current_std);
++	if (ret)
++		return ret;
++
++	if (std == current_std)
++		return 0;
++
++	if (vb2_is_busy(&dev->buffer_queue))
++		return -EBUSY;
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_std, std);
++
++	/* Force recomputation of bytesperline */
++	dev->v_fmt.fmt.pix.bytesperline = 0;
++
++	unicam_reset_format(dev);
++
++	return ret;
++}
++
++static int unicam_s_edid(struct file *file, void *priv, struct v4l2_edid *edid)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, pad, set_edid, edid);
++}
++
++static int unicam_g_edid(struct file *file, void *priv, struct v4l2_edid *edid)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, pad, get_edid, edid);
++}
++
++static int unicam_enum_framesizes(struct file *file, void *priv,
++				  struct v4l2_frmsizeenum *fsize)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	const struct unicam_fmt *fmt;
++	struct v4l2_subdev_frame_size_enum fse;
++	int ret;
++
++	/* check for valid format */
++	fmt = find_format_by_pix(dev, fsize->pixel_format);
++	if (!fmt) {
++		unicam_dbg(3, dev, "Invalid pixel code: %x\n",
++			   fsize->pixel_format);
++		return -EINVAL;
++	}
++
++	fse.index = fsize->index;
++	fse.pad = 0;
++	fse.code = fmt->code;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_size, NULL, &fse);
++	if (ret)
++		return ret;
++
++	unicam_dbg(1, dev, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
++		   __func__, fse.index, fse.code, fse.min_width, fse.max_width,
++		   fse.min_height, fse.max_height);
++
++	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
++	fsize->discrete.width = fse.max_width;
++	fsize->discrete.height = fse.max_height;
++
++	return 0;
++}
++
++static int unicam_enum_frameintervals(struct file *file, void *priv,
++				      struct v4l2_frmivalenum *fival)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	const struct unicam_fmt *fmt;
++	struct v4l2_subdev_frame_interval_enum fie = {
++		.index = fival->index,
++		.width = fival->width,
++		.height = fival->height,
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++	};
++	int ret;
++
++	fmt = find_format_by_pix(dev, fival->pixel_format);
++	if (!fmt)
++		return -EINVAL;
++
++	fie.code = fmt->code;
++	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_interval,
++			       NULL, &fie);
++	if (ret)
++		return ret;
++
++	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
++	fival->discrete = fie.interval;
++
++	return 0;
++}
++
++static int unicam_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_g_parm_cap(video_devdata(file), dev->sensor, a);
++}
++
++static int unicam_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_s_parm_cap(video_devdata(file), dev->sensor, a);
++}
++
++static int unicam_g_dv_timings(struct file *file, void *priv,
++			       struct v4l2_dv_timings *timings)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, video, g_dv_timings, timings);
++}
++
++static int unicam_s_dv_timings(struct file *file, void *priv,
++			       struct v4l2_dv_timings *timings)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct v4l2_dv_timings current_timings;
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings,
++			       &current_timings);
++
++	if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
++		return 0;
++
++	if (vb2_is_busy(&dev->buffer_queue))
++		return -EBUSY;
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_dv_timings, timings);
++
++	/* Force recomputation of bytesperline */
++	dev->v_fmt.fmt.pix.bytesperline = 0;
++
++	unicam_reset_format(dev);
++
++	return ret;
++}
++
++static int unicam_query_dv_timings(struct file *file, void *priv,
++				   struct v4l2_dv_timings *timings)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, video, query_dv_timings, timings);
++}
++
++static int unicam_enum_dv_timings(struct file *file, void *priv,
++				  struct v4l2_enum_dv_timings *timings)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, pad, enum_dv_timings, timings);
++}
++
++static int unicam_dv_timings_cap(struct file *file, void *priv,
++				 struct v4l2_dv_timings_cap *cap)
++{
++	struct unicam_device *dev = video_drvdata(file);
++
++	return v4l2_subdev_call(dev->sensor, pad, dv_timings_cap, cap);
++}
++
++static int unicam_subscribe_event(struct v4l2_fh *fh,
++				  const struct v4l2_event_subscription *sub)
++{
++	switch (sub->type) {
++	case V4L2_EVENT_SOURCE_CHANGE:
++		return v4l2_event_subscribe(fh, sub, 4, NULL);
++	}
++
++	return v4l2_ctrl_subscribe_event(fh, sub);
++}
++
++static int unicam_log_status(struct file *file, void *fh)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_cfg *cfg = &dev->cfg;
++	u32 reg;
++
++	/* status for sub devices */
++	v4l2_device_call_all(&dev->v4l2_dev, 0, core, log_status);
++
++	unicam_info(dev, "-----Receiver status-----\n");
++	unicam_info(dev, "V4L2 width/height:   %ux%u\n",
++		    dev->v_fmt.fmt.pix.width, dev->v_fmt.fmt.pix.height);
++	unicam_info(dev, "Mediabus format:     %08x\n", dev->fmt->code);
++	unicam_info(dev, "V4L2 format:         %08x\n",
++		    dev->v_fmt.fmt.pix.pixelformat);
++	reg = reg_read(&dev->cfg, UNICAM_IPIPE);
++	unicam_info(dev, "Unpacking/packing:   %u / %u\n",
++		    get_field(reg, UNICAM_PUM_MASK),
++		    get_field(reg, UNICAM_PPM_MASK));
++	unicam_info(dev, "----Live data----\n");
++	unicam_info(dev, "Programmed stride:   %4u\n",
++		    reg_read(cfg, UNICAM_IBLS));
++	unicam_info(dev, "Detected resolution: %ux%u\n",
++		    reg_read(cfg, UNICAM_IHSTA),
++		    reg_read(cfg, UNICAM_IVSTA));
++	unicam_info(dev, "Write pointer:       %08x\n",
++		    reg_read(cfg, UNICAM_IBWP));
++
++	return 0;
++}
++
++static void unicam_notify(struct v4l2_subdev *sd,
++			  unsigned int notification, void *arg)
++{
++	struct unicam_device *dev =
++		container_of(sd->v4l2_dev, struct unicam_device, v4l2_dev);
++
++	switch (notification) {
++	case V4L2_DEVICE_NOTIFY_EVENT:
++		v4l2_event_queue(&dev->video_dev, arg);
++		break;
++	default:
++		break;
++	}
++}
++
++static const struct vb2_ops unicam_video_qops = {
++	.wait_prepare		= vb2_ops_wait_prepare,
++	.wait_finish		= vb2_ops_wait_finish,
++	.queue_setup		= unicam_queue_setup,
++	.buf_prepare		= unicam_buffer_prepare,
++	.buf_queue		= unicam_buffer_queue,
++	.start_streaming	= unicam_start_streaming,
++	.stop_streaming		= unicam_stop_streaming,
++};
++
++/*
++ * unicam_open : This function is based on the v4l2_fh_open helper function.
++ * It has been augmented to handle sensor subdevice power management,
++ */
++static int unicam_open(struct file *file)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	int ret;
++
++	mutex_lock(&dev->lock);
++
++	ret = v4l2_fh_open(file);
++	if (ret) {
++		unicam_err(dev, "v4l2_fh_open failed\n");
++		goto unlock;
++	}
++
++	if (!v4l2_fh_is_singular_file(file))
++		goto unlock;
++
++	ret = v4l2_subdev_call(dev->sensor, core, s_power, 1);
++	if (ret < 0 && ret != -ENOIOCTLCMD) {
++		v4l2_fh_release(file);
++		goto unlock;
++	}
++
++	ret = 0;
++
++unlock:
++	mutex_unlock(&dev->lock);
++	return ret;
++}
++
++static int unicam_release(struct file *file)
++{
++	struct unicam_device *dev = video_drvdata(file);
++	struct v4l2_subdev *sd = dev->sensor;
++	bool fh_singular;
++	int ret;
++
++	mutex_lock(&dev->lock);
++
++	fh_singular = v4l2_fh_is_singular_file(file);
++
++	ret = _vb2_fop_release(file, NULL);
++
++	if (fh_singular)
++		v4l2_subdev_call(sd, core, s_power, 0);
++
++	mutex_unlock(&dev->lock);
++
++	return ret;
++}
++
++/* unicam capture driver file operations */
++static const struct v4l2_file_operations unicam_fops = {
++	.owner		= THIS_MODULE,
++	.open           = unicam_open,
++	.release        = unicam_release,
++	.read		= vb2_fop_read,
++	.poll		= vb2_fop_poll,
++	.unlocked_ioctl	= video_ioctl2,
++	.mmap		= vb2_fop_mmap,
++};
++
++/* unicam capture ioctl operations */
++static const struct v4l2_ioctl_ops unicam_ioctl_ops = {
++	.vidioc_querycap		= unicam_querycap,
++	.vidioc_enum_fmt_vid_cap	= unicam_enum_fmt_vid_cap,
++	.vidioc_g_fmt_vid_cap		= unicam_g_fmt_vid_cap,
++	.vidioc_s_fmt_vid_cap		= unicam_s_fmt_vid_cap,
++	.vidioc_try_fmt_vid_cap		= unicam_try_fmt_vid_cap,
++
++	.vidioc_enum_input		= unicam_enum_input,
++	.vidioc_g_input			= unicam_g_input,
++	.vidioc_s_input			= unicam_s_input,
++
++	.vidioc_querystd		= unicam_querystd,
++	.vidioc_s_std			= unicam_s_std,
++	.vidioc_g_std			= unicam_g_std,
++
++	.vidioc_g_edid			= unicam_g_edid,
++	.vidioc_s_edid			= unicam_s_edid,
++
++	.vidioc_enum_framesizes		= unicam_enum_framesizes,
++	.vidioc_enum_frameintervals	= unicam_enum_frameintervals,
++
++	.vidioc_g_parm			= unicam_g_parm,
++	.vidioc_s_parm			= unicam_s_parm,
++
++	.vidioc_s_dv_timings		= unicam_s_dv_timings,
++	.vidioc_g_dv_timings		= unicam_g_dv_timings,
++	.vidioc_query_dv_timings	= unicam_query_dv_timings,
++	.vidioc_enum_dv_timings		= unicam_enum_dv_timings,
++	.vidioc_dv_timings_cap		= unicam_dv_timings_cap,
++
++	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
++	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
++	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
++	.vidioc_querybuf		= vb2_ioctl_querybuf,
++	.vidioc_qbuf			= vb2_ioctl_qbuf,
++	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
++	.vidioc_expbuf			= vb2_ioctl_expbuf,
++	.vidioc_streamon		= vb2_ioctl_streamon,
++	.vidioc_streamoff		= vb2_ioctl_streamoff,
++
++	.vidioc_log_status		= unicam_log_status,
++	.vidioc_subscribe_event		= unicam_subscribe_event,
++	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
++};
++
++static int
++unicam_async_bound(struct v4l2_async_notifier *notifier,
++		   struct v4l2_subdev *subdev,
++		   struct v4l2_async_subdev *asd)
++{
++	struct unicam_device *unicam = container_of(notifier->v4l2_dev,
++					       struct unicam_device, v4l2_dev);
++
++	if (unicam->sensor) {
++		unicam_info(unicam, "Rejecting subdev %s (Already set!!)",
++			    subdev->name);
++		return 0;
++	}
++
++	unicam->sensor = subdev;
++	unicam_dbg(1, unicam, "Using sensor %s for capture\n", subdev->name);
++
++	return 0;
++}
++
++static int unicam_probe_complete(struct unicam_device *unicam)
++{
++	struct video_device *vdev;
++	struct vb2_queue *q;
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	v4l2_set_subdev_hostdata(unicam->sensor, unicam);
++
++	unicam->v4l2_dev.notify = unicam_notify;
++
++	unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
++	if (!unicam->sensor_config)
++		return -ENOMEM;
++
++	ret = __subdev_get_format(unicam, &mbus_fmt);
++	if (ret) {
++		unicam_err(unicam, "Failed to get_format - ret %d\n", ret);
++		return ret;
++	}
++
++	fmt = find_format_by_code(mbus_fmt.code);
++	if (!fmt) {
++		/* Find the first format that the sensor and unicam both
++		 * support
++		 */
++		fmt = get_first_supported_format(unicam);
++
++		if (!fmt)
++			/* No compatible formats */
++			return -EINVAL;
++
++		mbus_fmt.code = fmt->code;
++		ret = __subdev_set_format(unicam, &mbus_fmt);
++		if (ret)
++			return -EINVAL;
++	}
++	if (mbus_fmt.field != V4L2_FIELD_NONE) {
++		/* Interlaced not supported - disable it now. */
++		mbus_fmt.field = V4L2_FIELD_NONE;
++		ret = __subdev_set_format(unicam, &mbus_fmt);
++		if (ret)
++			return -EINVAL;
++	}
++
++	unicam->fmt = fmt;
++	if (fmt->fourcc)
++		unicam->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++	else
++		unicam->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
++
++	/* Read current subdev format */
++	unicam_reset_format(unicam);
++
++	if (v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
++		v4l2_std_id tvnorms;
++
++		if (WARN_ON(!v4l2_subdev_has_op(unicam->sensor, video,
++						g_tvnorms)))
++			/*
++			 * Subdevice should not advertise s_std but not
++			 * g_tvnorms
++			 */
++			return -EINVAL;
++
++		ret = v4l2_subdev_call(unicam->sensor, video,
++				       g_tvnorms, &tvnorms);
++		if (WARN_ON(ret))
++			return -EINVAL;
++		unicam->video_dev.tvnorms |= tvnorms;
++	}
++
++	spin_lock_init(&unicam->dma_queue_lock);
++	mutex_init(&unicam->lock);
++
++	/* Add controls from the subdevice */
++	ret = v4l2_ctrl_add_handler(&unicam->ctrl_handler,
++				    unicam->sensor->ctrl_handler, NULL, true);
++	if (ret < 0)
++		return ret;
++
++	q = &unicam->buffer_queue;
++	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
++	q->drv_priv = unicam;
++	q->ops = &unicam_video_qops;
++	q->mem_ops = &vb2_dma_contig_memops;
++	q->buf_struct_size = sizeof(struct unicam_buffer);
++	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
++	q->lock = &unicam->lock;
++	q->min_buffers_needed = 2;
++	q->dev = &unicam->pdev->dev;
++
++	ret = vb2_queue_init(q);
++	if (ret) {
++		unicam_err(unicam, "vb2_queue_init() failed\n");
++		return ret;
++	}
++
++	INIT_LIST_HEAD(&unicam->dma_queue.active);
++
++	vdev = &unicam->video_dev;
++	strlcpy(vdev->name, UNICAM_MODULE_NAME, sizeof(vdev->name));
++	vdev->release = video_device_release_empty;
++	vdev->fops = &unicam_fops;
++	vdev->ioctl_ops = &unicam_ioctl_ops;
++	vdev->v4l2_dev = &unicam->v4l2_dev;
++	vdev->vfl_dir = VFL_DIR_RX;
++	vdev->queue = q;
++	vdev->lock = &unicam->lock;
++	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
++			    V4L2_CAP_READWRITE;
++
++	/* If the source has no controls then remove our ctrl handler. */
++	if (list_empty(&unicam->ctrl_handler.ctrls))
++		unicam->v4l2_dev.ctrl_handler = NULL;
++
++	video_set_drvdata(vdev, unicam);
++	vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
++
++	if (!v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_STD);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_STD);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUMSTD);
++	}
++	if (!v4l2_subdev_has_op(unicam->sensor, video, querystd))
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_QUERYSTD);
++	if (!v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_EDID);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_EDID);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_DV_TIMINGS_CAP);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_DV_TIMINGS);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_DV_TIMINGS);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUM_DV_TIMINGS);
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_QUERY_DV_TIMINGS);
++	}
++	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
++		v4l2_disable_ioctl(&unicam->video_dev,
++				   VIDIOC_ENUM_FRAMEINTERVALS);
++	if (!v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_PARM);
++	if (!v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_PARM);
++
++	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
++		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUM_FRAMESIZES);
++
++	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
++	if (ret) {
++		unicam_err(unicam, "Unable to register video device.\n");
++		return ret;
++	}
++
++	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
++	if (ret) {
++		unicam_err(unicam,
++			   "Unable to register subdev nodes.\n");
++		video_unregister_device(&unicam->video_dev);
++		return ret;
++	}
++
++	ret = media_create_pad_link(&unicam->sensor->entity, 0,
++				    &unicam->video_dev.entity, 0,
++				    MEDIA_LNK_FL_ENABLED |
++				    MEDIA_LNK_FL_IMMUTABLE);
++	if (ret) {
++		unicam_err(unicam, "Unable to create pad links.\n");
++		video_unregister_device(&unicam->video_dev);
++		return ret;
++	}
++
++	return 0;
++}
++
++static int unicam_async_complete(struct v4l2_async_notifier *notifier)
++{
++	struct unicam_device *unicam = container_of(notifier->v4l2_dev,
++					struct unicam_device, v4l2_dev);
++
++	return unicam_probe_complete(unicam);
++}
++
++static const struct v4l2_async_notifier_operations unicam_async_ops = {
++	.bound = unicam_async_bound,
++	.complete = unicam_async_complete,
++};
++
++static int of_unicam_connect_subdevs(struct unicam_device *dev)
++{
++	struct platform_device *pdev = dev->pdev;
++	struct device_node *parent, *ep_node = NULL, *remote_ep = NULL,
++			*sensor_node = NULL;
++	struct v4l2_fwnode_endpoint *ep;
++	struct v4l2_async_subdev *asd;
++	unsigned int peripheral_data_lanes;
++	int ret = -EINVAL;
++	unsigned int lane;
++
++	parent = pdev->dev.of_node;
++
++	asd = &dev->asd;
++	ep = &dev->endpoint;
++
++	ep_node = of_graph_get_next_endpoint(parent, NULL);
++	if (!ep_node) {
++		unicam_dbg(3, dev, "can't get next endpoint\n");
++		goto cleanup_exit;
++	}
++
++	unicam_dbg(3, dev, "ep_node is %s\n", ep_node->name);
++
++	v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), ep);
++
++	for (lane = 0; lane < ep->bus.mipi_csi2.num_data_lanes; lane++) {
++		if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) {
++			unicam_err(dev, "Local endpoint - data lane reordering not supported\n");
++			goto cleanup_exit;
++		}
++	}
++
++	peripheral_data_lanes = ep->bus.mipi_csi2.num_data_lanes;
++
++	sensor_node = of_graph_get_remote_port_parent(ep_node);
++	if (!sensor_node) {
++		unicam_dbg(3, dev, "can't get remote parent\n");
++		goto cleanup_exit;
++	}
++	unicam_dbg(3, dev, "sensor_node is %s\n", sensor_node->name);
++	asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
++	asd->match.fwnode = of_fwnode_handle(sensor_node);
++
++	remote_ep = of_graph_get_remote_endpoint(ep_node);
++	if (!remote_ep) {
++		unicam_dbg(3, dev, "can't get remote-endpoint\n");
++		goto cleanup_exit;
++	}
++	unicam_dbg(3, dev, "remote_ep is %s\n", remote_ep->name);
++	v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), ep);
++	unicam_dbg(3, dev, "parsed remote_ep to endpoint. nr_of_link_frequencies %u, bus_type %u\n",
++		   ep->nr_of_link_frequencies, ep->bus_type);
++
++	switch (ep->bus_type) {
++	case V4L2_MBUS_CSI2_DPHY:
++		if (ep->bus.mipi_csi2.num_data_lanes >
++				peripheral_data_lanes) {
++			unicam_err(dev, "Subdevice %s wants too many data lanes (%u > %u)\n",
++				   sensor_node->name,
++				   ep->bus.mipi_csi2.num_data_lanes,
++				   peripheral_data_lanes);
++			goto cleanup_exit;
++		}
++		for (lane = 0;
++		     lane < ep->bus.mipi_csi2.num_data_lanes;
++		     lane++) {
++			if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) {
++				unicam_err(dev, "Subdevice %s - incompatible data lane config\n",
++					   sensor_node->name);
++				goto cleanup_exit;
++			}
++		}
++		dev->max_data_lanes = ep->bus.mipi_csi2.num_data_lanes;
++		dev->bus_flags = ep->bus.mipi_csi2.flags;
++		break;
++	case V4L2_MBUS_CCP2:
++		if (ep->bus.mipi_csi1.clock_lane != 0 ||
++		    ep->bus.mipi_csi1.data_lane != 1) {
++			unicam_err(dev, "Subdevice %s incompatible lane config\n",
++				   sensor_node->name);
++			goto cleanup_exit;
++		}
++		dev->max_data_lanes = 1;
++		dev->bus_flags = ep->bus.mipi_csi1.strobe;
++		break;
++	default:
++		/* Unsupported bus type */
++		unicam_err(dev, "sub-device %s is not a CSI2 or CCP2 device %d\n",
++			   sensor_node->name, ep->bus_type);
++		goto cleanup_exit;
++	}
++
++	/* Store bus type - CSI2 or CCP2 */
++	dev->bus_type = ep->bus_type;
++	unicam_dbg(3, dev, "bus_type is %d\n", dev->bus_type);
++
++	/* Store Virtual Channel number */
++	dev->virtual_channel = ep->base.id;
++
++	unicam_dbg(3, dev, "v4l2-endpoint: %s\n",
++		   dev->bus_type == V4L2_MBUS_CSI2_DPHY ? "CSI2" : "CCP2");
++	unicam_dbg(3, dev, "Virtual Channel=%d\n", dev->virtual_channel);
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY)
++		unicam_dbg(3, dev, "flags=0x%08x\n", ep->bus.mipi_csi2.flags);
++	unicam_dbg(3, dev, "num_data_lanes=%d\n", dev->max_data_lanes);
++
++	unicam_dbg(1, dev, "found sub-device %s\n", sensor_node->name);
++
++	v4l2_async_notifier_init(&dev->notifier);
++
++	ret = v4l2_async_notifier_add_subdev(&dev->notifier, asd);
++	if (ret) {
++		unicam_err(dev, "Error adding subdevice - ret %d\n", ret);
++		goto cleanup_exit;
++	}
++
++	dev->notifier.ops = &unicam_async_ops;
++	ret = v4l2_async_notifier_register(&dev->v4l2_dev,
++					   &dev->notifier);
++	if (ret) {
++		unicam_err(dev, "Error registering async notifier - ret %d\n",
++			   ret);
++		ret = -EINVAL;
++	}
++
++cleanup_exit:
++	if (remote_ep)
++		of_node_put(remote_ep);
++	if (sensor_node)
++		of_node_put(sensor_node);
++	if (ep_node)
++		of_node_put(ep_node);
++
++	return ret;
++}
++
++static int unicam_probe(struct platform_device *pdev)
++{
++	struct unicam_cfg *unicam_cfg;
++	struct unicam_device *unicam;
++	struct v4l2_ctrl_handler *hdl;
++	struct resource	*res;
++	int ret;
++
++	unicam = devm_kzalloc(&pdev->dev, sizeof(*unicam), GFP_KERNEL);
++	if (!unicam)
++		return -ENOMEM;
++
++	unicam->pdev = pdev;
++	unicam_cfg = &unicam->cfg;
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	unicam_cfg->base = devm_ioremap_resource(&pdev->dev, res);
++	if (IS_ERR(unicam_cfg->base)) {
++		unicam_err(unicam, "Failed to get main io block\n");
++		return PTR_ERR(unicam_cfg->base);
++	}
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++	unicam_cfg->clk_gate_base = devm_ioremap_resource(&pdev->dev, res);
++	if (IS_ERR(unicam_cfg->clk_gate_base)) {
++		unicam_err(unicam, "Failed to get 2nd io block\n");
++		return PTR_ERR(unicam_cfg->clk_gate_base);
++	}
++
++	unicam->clock = devm_clk_get(&pdev->dev, "lp");
++	if (IS_ERR(unicam->clock)) {
++		unicam_err(unicam, "Failed to get clock\n");
++		return PTR_ERR(unicam->clock);
++	}
++
++	ret = platform_get_irq(pdev, 0);
++	if (ret <= 0) {
++		dev_err(&pdev->dev, "No IRQ resource\n");
++		return -ENODEV;
++	}
++
++	ret = devm_request_irq(&pdev->dev, ret, unicam_isr, 0,
++			       "unicam_capture0", unicam);
++	if (ret) {
++		dev_err(&pdev->dev, "Unable to request interrupt\n");
++		return -EINVAL;
++	}
++
++	unicam->mdev.dev = &pdev->dev;
++	strscpy(unicam->mdev.model, UNICAM_MODULE_NAME,
++		sizeof(unicam->mdev.model));
++	strscpy(unicam->mdev.serial, "", sizeof(unicam->mdev.serial));
++	snprintf(unicam->mdev.bus_info, sizeof(unicam->mdev.bus_info),
++		 "platform:%s %s",
++		 pdev->dev.driver->name, dev_name(&pdev->dev));
++	unicam->mdev.hw_revision = 1;
++
++	media_entity_pads_init(&unicam->video_dev.entity, 1, &unicam->pad);
++	media_device_init(&unicam->mdev);
++
++	unicam->v4l2_dev.mdev = &unicam->mdev;
++
++	ret = v4l2_device_register(&pdev->dev, &unicam->v4l2_dev);
++	if (ret) {
++		unicam_err(unicam,
++			   "Unable to register v4l2 device.\n");
++		goto media_cleanup;
++	}
++
++	ret = media_device_register(&unicam->mdev);
++	if (ret < 0) {
++		unicam_err(unicam,
++			   "Unable to register media-controller device.\n");
++		goto probe_out_v4l2_unregister;
++	}
++
++	/* Reserve space for the controls */
++	hdl = &unicam->ctrl_handler;
++	ret = v4l2_ctrl_handler_init(hdl, 16);
++	if (ret < 0)
++		goto media_unregister;
++	unicam->v4l2_dev.ctrl_handler = hdl;
++
++	/* set the driver data in platform device */
++	platform_set_drvdata(pdev, unicam);
++
++	ret = of_unicam_connect_subdevs(unicam);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to connect subdevs\n");
++		goto free_hdl;
++	}
++
++	/* Enable the block power domain */
++	pm_runtime_enable(&pdev->dev);
++
++	return 0;
++
++free_hdl:
++	v4l2_ctrl_handler_free(hdl);
++media_unregister:
++	media_device_unregister(&unicam->mdev);
++probe_out_v4l2_unregister:
++	v4l2_device_unregister(&unicam->v4l2_dev);
++media_cleanup:
++	media_device_cleanup(&unicam->mdev);
++
++	return ret;
++}
++
++static int unicam_remove(struct platform_device *pdev)
++{
++	struct unicam_device *unicam = platform_get_drvdata(pdev);
++
++	unicam_dbg(2, unicam, "%s\n", __func__);
++
++	pm_runtime_disable(&pdev->dev);
++
++	v4l2_async_notifier_unregister(&unicam->notifier);
++	v4l2_ctrl_handler_free(&unicam->ctrl_handler);
++	v4l2_device_unregister(&unicam->v4l2_dev);
++	video_unregister_device(&unicam->video_dev);
++	if (unicam->sensor_config)
++		v4l2_subdev_free_pad_config(unicam->sensor_config);
++	media_device_unregister(&unicam->mdev);
++	media_device_cleanup(&unicam->mdev);
++
++	return 0;
++}
++
++static const struct of_device_id unicam_of_match[] = {
++	{ .compatible = "brcm,bcm2835-unicam", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, unicam_of_match);
++
++static struct platform_driver unicam_driver = {
++	.probe		= unicam_probe,
++	.remove		= unicam_remove,
++	.driver = {
++		.name	= UNICAM_MODULE_NAME,
++		.of_match_table = of_match_ptr(unicam_of_match),
++	},
++};
++
++module_platform_driver(unicam_driver);
++
++MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.com>");
++MODULE_DESCRIPTION("BCM2835 Unicam driver");
++MODULE_LICENSE("GPL");
++MODULE_VERSION(UNICAM_VERSION);
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/vc4-regs-unicam.h
+@@ -0,0 +1,253 @@
++/* SPDX-License-Identifier: GPL-2.0-only */
++
++/*
++ * Copyright (C) 2017-2020 Raspberry Pi Trading.
++ * Dave Stevenson <dave.stevenson@raspberrypi.com>
++ */
++
++#ifndef VC4_REGS_UNICAM_H
++#define VC4_REGS_UNICAM_H
++
++/*
++ * The following values are taken from files found within the code drop
++ * made by Broadcom for the BCM21553 Graphics Driver, predominantly in
++ * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h.
++ * They have been modified to be only the register offset.
++ */
++#define UNICAM_CTRL	0x000
++#define UNICAM_STA	0x004
++#define UNICAM_ANA	0x008
++#define UNICAM_PRI	0x00c
++#define UNICAM_CLK	0x010
++#define UNICAM_CLT	0x014
++#define UNICAM_DAT0	0x018
++#define UNICAM_DAT1	0x01c
++#define UNICAM_DAT2	0x020
++#define UNICAM_DAT3	0x024
++#define UNICAM_DLT	0x028
++#define UNICAM_CMP0	0x02c
++#define UNICAM_CMP1	0x030
++#define UNICAM_CAP0	0x034
++#define UNICAM_CAP1	0x038
++#define UNICAM_ICTL	0x100
++#define UNICAM_ISTA	0x104
++#define UNICAM_IDI0	0x108
++#define UNICAM_IPIPE	0x10c
++#define UNICAM_IBSA0	0x110
++#define UNICAM_IBEA0	0x114
++#define UNICAM_IBLS	0x118
++#define UNICAM_IBWP	0x11c
++#define UNICAM_IHWIN	0x120
++#define UNICAM_IHSTA	0x124
++#define UNICAM_IVWIN	0x128
++#define UNICAM_IVSTA	0x12c
++#define UNICAM_ICC	0x130
++#define UNICAM_ICS	0x134
++#define UNICAM_IDC	0x138
++#define UNICAM_IDPO	0x13c
++#define UNICAM_IDCA	0x140
++#define UNICAM_IDCD	0x144
++#define UNICAM_IDS	0x148
++#define UNICAM_DCS	0x200
++#define UNICAM_DBSA0	0x204
++#define UNICAM_DBEA0	0x208
++#define UNICAM_DBWP	0x20c
++#define UNICAM_DBCTL	0x300
++#define UNICAM_IBSA1	0x304
++#define UNICAM_IBEA1	0x308
++#define UNICAM_IDI1	0x30c
++#define UNICAM_DBSA1	0x310
++#define UNICAM_DBEA1	0x314
++#define UNICAM_MISC	0x400
++
++/*
++ * The following bitmasks are from the kernel released by Broadcom
++ * for Android - https://android.googlesource.com/kernel/bcm/
++ * The Rhea, Hawaii, and Java chips all contain the same VideoCore4
++ * Unicam block as BCM2835, as defined in eg
++ * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar.
++ * Values reworked to use the kernel BIT and GENMASK macros.
++ *
++ * Some of the bit mnenomics have been amended to match the datasheet.
++ */
++/* UNICAM_CTRL Register */
++#define UNICAM_CPE		BIT(0)
++#define UNICAM_MEM		BIT(1)
++#define UNICAM_CPR		BIT(2)
++#define UNICAM_CPM_MASK		GENMASK(3, 3)
++#define UNICAM_CPM_CSI2		0
++#define UNICAM_CPM_CCP2		1
++#define UNICAM_SOE		BIT(4)
++#define UNICAM_DCM_MASK		GENMASK(5, 5)
++#define UNICAM_DCM_STROBE	0
++#define UNICAM_DCM_DATA		1
++#define UNICAM_SLS		BIT(6)
++#define UNICAM_PFT_MASK		GENMASK(11, 8)
++#define UNICAM_OET_MASK		GENMASK(20, 12)
++
++/* UNICAM_STA Register */
++#define UNICAM_SYN		BIT(0)
++#define UNICAM_CS		BIT(1)
++#define UNICAM_SBE		BIT(2)
++#define UNICAM_PBE		BIT(3)
++#define UNICAM_HOE		BIT(4)
++#define UNICAM_PLE		BIT(5)
++#define UNICAM_SSC		BIT(6)
++#define UNICAM_CRCE		BIT(7)
++#define UNICAM_OES		BIT(8)
++#define UNICAM_IFO		BIT(9)
++#define UNICAM_OFO		BIT(10)
++#define UNICAM_BFO		BIT(11)
++#define UNICAM_DL		BIT(12)
++#define UNICAM_PS		BIT(13)
++#define UNICAM_IS		BIT(14)
++#define UNICAM_PI0		BIT(15)
++#define UNICAM_PI1		BIT(16)
++#define UNICAM_FSI_S		BIT(17)
++#define UNICAM_FEI_S		BIT(18)
++#define UNICAM_LCI_S		BIT(19)
++#define UNICAM_BUF0_RDY		BIT(20)
++#define UNICAM_BUF0_NO		BIT(21)
++#define UNICAM_BUF1_RDY		BIT(22)
++#define UNICAM_BUF1_NO		BIT(23)
++#define UNICAM_DI		BIT(24)
++
++#define UNICAM_STA_MASK_ALL \
++		(UNICAM_DL + \
++		UNICAM_SBE + \
++		UNICAM_PBE + \
++		UNICAM_HOE + \
++		UNICAM_PLE + \
++		UNICAM_SSC + \
++		UNICAM_CRCE + \
++		UNICAM_IFO + \
++		UNICAM_OFO + \
++		UNICAM_PS + \
++		UNICAM_PI0 + \
++		UNICAM_PI1)
++
++/* UNICAM_ANA Register */
++#define UNICAM_APD		BIT(0)
++#define UNICAM_BPD		BIT(1)
++#define UNICAM_AR		BIT(2)
++#define UNICAM_DDL		BIT(3)
++#define UNICAM_CTATADJ_MASK	GENMASK(7, 4)
++#define UNICAM_PTATADJ_MASK	GENMASK(11, 8)
++
++/* UNICAM_PRI Register */
++#define UNICAM_PE		BIT(0)
++#define UNICAM_PT_MASK		GENMASK(2, 1)
++#define UNICAM_NP_MASK		GENMASK(7, 4)
++#define UNICAM_PP_MASK		GENMASK(11, 8)
++#define UNICAM_BS_MASK		GENMASK(15, 12)
++#define UNICAM_BL_MASK		GENMASK(17, 16)
++
++/* UNICAM_CLK Register */
++#define UNICAM_CLE		BIT(0)
++#define UNICAM_CLPD		BIT(1)
++#define UNICAM_CLLPE		BIT(2)
++#define UNICAM_CLHSE		BIT(3)
++#define UNICAM_CLTRE		BIT(4)
++#define UNICAM_CLAC_MASK	GENMASK(8, 5)
++#define UNICAM_CLSTE		BIT(29)
++
++/* UNICAM_CLT Register */
++#define UNICAM_CLT1_MASK	GENMASK(7, 0)
++#define UNICAM_CLT2_MASK	GENMASK(15, 8)
++
++/* UNICAM_DATn Registers */
++#define UNICAM_DLE		BIT(0)
++#define UNICAM_DLPD		BIT(1)
++#define UNICAM_DLLPE		BIT(2)
++#define UNICAM_DLHSE		BIT(3)
++#define UNICAM_DLTRE		BIT(4)
++#define UNICAM_DLSM		BIT(5)
++#define UNICAM_DLFO		BIT(28)
++#define UNICAM_DLSTE		BIT(29)
++
++#define UNICAM_DAT_MASK_ALL (UNICAM_DLSTE + UNICAM_DLFO)
++
++/* UNICAM_DLT Register */
++#define UNICAM_DLT1_MASK	GENMASK(7, 0)
++#define UNICAM_DLT2_MASK	GENMASK(15, 8)
++#define UNICAM_DLT3_MASK	GENMASK(23, 16)
++
++/* UNICAM_ICTL Register */
++#define UNICAM_FSIE		BIT(0)
++#define UNICAM_FEIE		BIT(1)
++#define UNICAM_IBOB		BIT(2)
++#define UNICAM_FCM		BIT(3)
++#define UNICAM_TFC		BIT(4)
++#define UNICAM_LIP_MASK		GENMASK(6, 5)
++#define UNICAM_LCIE_MASK	GENMASK(28, 16)
++
++/* UNICAM_IDI0/1 Register */
++#define UNICAM_ID0_MASK		GENMASK(7, 0)
++#define UNICAM_ID1_MASK		GENMASK(15, 8)
++#define UNICAM_ID2_MASK		GENMASK(23, 16)
++#define UNICAM_ID3_MASK		GENMASK(31, 24)
++
++/* UNICAM_ISTA Register */
++#define UNICAM_FSI		BIT(0)
++#define UNICAM_FEI		BIT(1)
++#define UNICAM_LCI		BIT(2)
++
++#define UNICAM_ISTA_MASK_ALL (UNICAM_FSI + UNICAM_FEI + UNICAM_LCI)
++
++/* UNICAM_IPIPE Register */
++#define UNICAM_PUM_MASK		GENMASK(2, 0)
++		/* Unpacking modes */
++		#define UNICAM_PUM_NONE		0
++		#define UNICAM_PUM_UNPACK6	1
++		#define UNICAM_PUM_UNPACK7	2
++		#define UNICAM_PUM_UNPACK8	3
++		#define UNICAM_PUM_UNPACK10	4
++		#define UNICAM_PUM_UNPACK12	5
++		#define UNICAM_PUM_UNPACK14	6
++		#define UNICAM_PUM_UNPACK16	7
++#define UNICAM_DDM_MASK		GENMASK(6, 3)
++#define UNICAM_PPM_MASK		GENMASK(9, 7)
++		/* Packing modes */
++		#define UNICAM_PPM_NONE		0
++		#define UNICAM_PPM_PACK8	1
++		#define UNICAM_PPM_PACK10	2
++		#define UNICAM_PPM_PACK12	3
++		#define UNICAM_PPM_PACK14	4
++		#define UNICAM_PPM_PACK16	5
++#define UNICAM_DEM_MASK		GENMASK(11, 10)
++#define UNICAM_DEBL_MASK	GENMASK(14, 12)
++#define UNICAM_ICM_MASK		GENMASK(16, 15)
++#define UNICAM_IDM_MASK		GENMASK(17, 17)
++
++/* UNICAM_ICC Register */
++#define UNICAM_ICFL_MASK	GENMASK(4, 0)
++#define UNICAM_ICFH_MASK	GENMASK(9, 5)
++#define UNICAM_ICST_MASK	GENMASK(12, 10)
++#define UNICAM_ICLT_MASK	GENMASK(15, 13)
++#define UNICAM_ICLL_MASK	GENMASK(31, 16)
++
++/* UNICAM_DCS Register */
++#define UNICAM_DIE		BIT(0)
++#define UNICAM_DIM		BIT(1)
++#define UNICAM_DBOB		BIT(3)
++#define UNICAM_FDE		BIT(4)
++#define UNICAM_LDP		BIT(5)
++#define UNICAM_EDL_MASK		GENMASK(15, 8)
++
++/* UNICAM_DBCTL Register */
++#define UNICAM_DBEN		BIT(0)
++#define UNICAM_BUF0_IE		BIT(1)
++#define UNICAM_BUF1_IE		BIT(2)
++
++/* UNICAM_CMP[0,1] register */
++#define UNICAM_PCE		BIT(31)
++#define UNICAM_GI		BIT(9)
++#define UNICAM_CPH		BIT(8)
++#define UNICAM_PCVC_MASK	GENMASK(7, 6)
++#define UNICAM_PCDT_MASK	GENMASK(5, 0)
++
++/* UNICAM_MISC register */
++#define UNICAM_FL0		BIT(6)
++#define UNICAM_FL1		BIT(9)
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0210-media-uapi-v4l2-core-Add-sensor-ancillary-data-V4L2-.patch b/target/linux/bcm27xx/patches-5.10/950-0210-media-uapi-v4l2-core-Add-sensor-ancillary-data-V4L2-.patch
new file mode 100644
index 0000000000..a89ce1a8d6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0210-media-uapi-v4l2-core-Add-sensor-ancillary-data-V4L2-.patch
@@ -0,0 +1,85 @@
+From 2f43e72bd136b5e69dbc6453555d8c5fecbb9d3a Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 1 Apr 2020 08:46:29 +0100
+Subject: [PATCH] media: uapi: v4l2-core: Add sensor ancillary data
+ V4L2 foucc type.
+
+Add V4L2_META_FMT_SENSOR_DATA format 4CC.
+
+This new format will be used by the BCM2835 Unicam device to return
+out camera sensor embedded data.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../userspace-api/media/v4l/meta-formats.rst  |  1 +
+ .../media/v4l/pixfmt-meta-sensor-data.rst     | 32 +++++++++++++++++++
+ drivers/media/v4l2-core/v4l2-ioctl.c          |  1 +
+ include/uapi/linux/videodev2.h                |  1 +
+ 4 files changed, 35 insertions(+)
+ create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-meta-sensor-data.rst
+
+--- a/Documentation/userspace-api/media/v4l/meta-formats.rst
++++ b/Documentation/userspace-api/media/v4l/meta-formats.rst
+@@ -15,6 +15,7 @@ These formats are used for the :ref:`met
+     pixfmt-meta-d4xx
+     pixfmt-meta-intel-ipu3
+     pixfmt-meta-rkisp1
++    pixfmt-meta-sensor-data
+     pixfmt-meta-uvc
+     pixfmt-meta-vsp1-hgo
+     pixfmt-meta-vsp1-hgt
+--- /dev/null
++++ b/Documentation/userspace-api/media/v4l/pixfmt-meta-sensor-data.rst
+@@ -0,0 +1,32 @@
++.. Permission is granted to copy, distribute and/or modify this
++.. document under the terms of the GNU Free Documentation License,
++.. Version 1.1 or any later version published by the Free Software
++.. Foundation, with no Invariant Sections, no Front-Cover Texts
++.. and no Back-Cover Texts. A copy of the license is included at
++.. Documentation/media/uapi/fdl-appendix.rst.
++..
++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
++
++.. _v4l2-meta-fmt-sensor-data:
++
++***********************************
++V4L2_META_FMT_SENSOR_DATA  ('SENS')
++***********************************
++
++Sensor Ancillary Metadata
++
++Description
++===========
++
++This format describes ancillary data generated by a camera sensor and
++transmitted over a stream on the camera bus. Sensor vendors generally have their
++own custom format for this ancillary data. Some vendors follow a generic
++CSI-2/SMIA embedded data format as described in the `CSI-2 specification.
++<https://mipi.org/specifications/csi-2>`_
++
++The size of the embedded buffer is defined as a single line with a pixel width
++width specified in bytes. This is obtained by a call to the
++:c:type:`VIDIOC_SUBDEV_G_FMT` ioctl on the sensor subdevice where the ``pad``
++field in :c:type:`v4l2_subdev_format` is set to 1.  Note that this size is fixed
++and cannot be modified with a call to :c:type:`VIDIOC_SUBDEV_S_FMT`.
++
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1404,6 +1404,7 @@ static void v4l_fill_fmtdesc(struct v4l2
+ 	case V4L2_META_FMT_UVC:		descr = "UVC Payload Header Metadata"; break;
+ 	case V4L2_META_FMT_D4XX:	descr = "Intel D4xx UVC Metadata"; break;
+ 	case V4L2_META_FMT_VIVID:       descr = "Vivid Metadata"; break;
++	case V4L2_META_FMT_SENSOR_DATA:	descr = "Sensor Ancillary Metadata"; break;
+ 
+ 	default:
+ 		/* Compressed formats */
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -778,6 +778,7 @@ struct v4l2_pix_format {
+ #define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
+ #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
+ #define V4L2_META_FMT_VIVID	  v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
++#define V4L2_META_FMT_SENSOR_DATA v4l2_fourcc('S', 'E', 'N', 'S') /* Sensor Ancillary metadata */
+ 
+ /* priv field value to indicates that subsequent fields are valid. */
+ #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
diff --git a/target/linux/bcm27xx/patches-5.10/950-0211-media-uapi-Add-MEDIA_BUS_FMT_SENSOR_DATA-media-bus-f.patch b/target/linux/bcm27xx/patches-5.10/950-0211-media-uapi-Add-MEDIA_BUS_FMT_SENSOR_DATA-media-bus-f.patch
new file mode 100644
index 0000000000..cc55451353
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0211-media-uapi-Add-MEDIA_BUS_FMT_SENSOR_DATA-media-bus-f.patch
@@ -0,0 +1,64 @@
+From 6c8bd941bfcbb6fc4f6b4f8261aa03f280e80f20 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 21 Jan 2020 14:06:47 +0000
+Subject: [PATCH] media: uapi: Add MEDIA_BUS_FMT_SENSOR_DATA media bus
+ format
+
+This patch adds MEDIA_BUS_FMT_SENSOR_DATA used by the bcm2835-unicam
+driver to support CSI-2 embedded data streams from camera sensors.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/v4l/subdev-formats.rst              | 33 +++++++++++++++++++
+ include/uapi/linux/media-bus-format.h         |  3 ++
+ 2 files changed, 36 insertions(+)
+
+--- a/Documentation/userspace-api/media/v4l/subdev-formats.rst
++++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst
+@@ -7899,3 +7899,36 @@ formats.
+       - 0x5001
+       - Interleaved raw UYVY and JPEG image format with embedded meta-data
+ 	used by Samsung S3C73MX camera sensors.
++
++
++
++.. _v4l2-mbus-sensor-data:
++
++Sensor Ancillary Metadata Formats
++^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
++
++This section lists ancillary data generated by a camera sensor and
++transmitted over a stream on the camera bus.
++
++The following table lists the existing sensor ancillary metadata formats:
++
++
++.. _v4l2-mbus-pixelcode-sensor-metadata:
++
++.. tabularcolumns:: |p{8.0cm}|p{1.4cm}|p{7.7cm}|
++
++.. flat-table:: Sensor ancillary metadata formats
++    :header-rows:  1
++    :stub-columns: 0
++
++    * - Identifier
++      - Code
++      - Comments
++    * .. _MEDIA_BUS_FMT_SENSOR_DATA:
++
++      - MEDIA_BUS_FMT_SENSOR_DATA
++      - 0x7001
++      - Sensor vendor specific ancillary metadata. Some vendors follow a generic
++        CSI-2/SMIA embedded data format as described in the `CSI-2 specification.
++	<https://mipi.org/specifications/csi-2>`_
++
+--- a/include/uapi/linux/media-bus-format.h
++++ b/include/uapi/linux/media-bus-format.h
+@@ -156,4 +156,7 @@
+ /* HSV - next is	0x6002 */
+ #define MEDIA_BUS_FMT_AHSV8888_1X32		0x6001
+ 
++/* Sensor ancillary metadata formats - next is 0x7002 */
++#define MEDIA_BUS_FMT_SENSOR_DATA		0x7001
++
+ #endif /* __LINUX_MEDIA_BUS_FORMAT_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0212-media-bcm2835-unicam-Add-support-for-mulitple-device.patch b/target/linux/bcm27xx/patches-5.10/950-0212-media-bcm2835-unicam-Add-support-for-mulitple-device.patch
new file mode 100644
index 0000000000..3c21c3b523
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0212-media-bcm2835-unicam-Add-support-for-mulitple-device.patch
@@ -0,0 +1,1084 @@
+From bc7cac66c7c590d64fb4d4597f3bb661f7a0893f Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 7 Apr 2020 10:42:14 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for mulitple
+ device nodes.
+
+Move device node specific state out of the device state structure and
+into a new node structure.  This separation will be needed for future
+changes where we will add an embedded data node to the driver to work
+alongside the existing image data node.
+
+Currently only use a single image node, so this commit does not add
+any functional changes.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 484 ++++++++++--------
+ 1 file changed, 283 insertions(+), 201 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -109,7 +109,8 @@ MODULE_PARM_DESC(debug, "Debug level 0-3
+ /* Define a nominal minimum image size */
+ #define MIN_WIDTH	16
+ #define MIN_HEIGHT	16
+-
++/* Maximum number of simulataneous streams Uncaim can handle. */
++#define MAX_NODES	2
+ /*
+  * struct unicam_fmt - Unicam media bus format information
+  * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a.
+@@ -346,11 +347,37 @@ struct unicam_cfg {
+ 
+ #define MAX_POSSIBLE_PIX_FMTS (ARRAY_SIZE(formats))
+ 
+-struct unicam_device {
+-	/* V4l2 specific parameters */
++struct unicam_node {
++	bool registered;
++	unsigned int pad_id;
++	/* Pointer pointing to current v4l2_buffer */
++	struct unicam_buffer *cur_frm;
++	/* Pointer pointing to next v4l2_buffer */
++	struct unicam_buffer *next_frm;
++	/* video capture */
++	const struct unicam_fmt *fmt;
++	/* Used to store current pixel format */
++	struct v4l2_format v_fmt;
++	/* Used to store current mbus frame format */
++	struct v4l2_mbus_framefmt m_fmt;
++	/* Buffer queue used in video-buf */
++	struct vb2_queue buffer_queue;
++	/* Queue of filled frames */
++	struct unicam_dmaqueue dma_queue;
++	/* IRQ lock for DMA queue */
++	spinlock_t dma_queue_lock;
++	/* lock used to access this structure */
++	struct mutex lock;
+ 	/* Identifies video device for this channel */
+ 	struct video_device video_dev;
++	/* Pointer to the parent handle */
++	struct unicam_device *dev;
++	struct media_pad pad;
+ 	struct v4l2_ctrl_handler ctrl_handler;
++};
++
++struct unicam_device {
++	/* V4l2 specific parameters */
+ 
+ 	struct v4l2_fwnode_endpoint endpoint;
+ 
+@@ -363,7 +390,6 @@ struct unicam_device {
+ 	/* V4l2 device */
+ 	struct v4l2_device v4l2_dev;
+ 	struct media_device mdev;
+-	struct media_pad pad;
+ 
+ 	/* parent device */
+ 	struct platform_device *pdev;
+@@ -378,18 +404,6 @@ struct unicam_device {
+ 	/* current input at the sub device */
+ 	int current_input;
+ 
+-	/* Pointer pointing to current v4l2_buffer */
+-	struct unicam_buffer *cur_frm;
+-	/* Pointer pointing to next v4l2_buffer */
+-	struct unicam_buffer *next_frm;
+-
+-	/* video capture */
+-	const struct unicam_fmt	*fmt;
+-	/* Used to store current pixel format */
+-	struct v4l2_format v_fmt;
+-	/* Used to store current mbus frame format */
+-	struct v4l2_mbus_framefmt m_fmt;
+-
+ 	unsigned int virtual_channel;
+ 	enum v4l2_mbus_type bus_type;
+ 	/*
+@@ -401,20 +415,10 @@ struct unicam_device {
+ 	unsigned int active_data_lanes;
+ 
+ 	struct v4l2_rect crop;
+-
+-	/* Currently selected input on subdev */
+-	int input;
+-
+-	/* Buffer queue used in video-buf */
+-	struct vb2_queue buffer_queue;
+-	/* Queue of filled frames */
+-	struct unicam_dmaqueue dma_queue;
+-	/* IRQ lock for DMA queue */
+-	spinlock_t dma_queue_lock;
+-	/* lock used to access this structure */
+-	struct mutex lock;
+ 	/* Flag to denote that we are processing buffers */
+ 	int streaming;
++
++	struct unicam_node node[MAX_NODES];
+ };
+ 
+ /* Hardware access */
+@@ -526,10 +530,11 @@ static inline unsigned int bytes_per_lin
+ }
+ 
+ static int __subdev_get_format(struct unicam_device *dev,
+-			       struct v4l2_mbus_framefmt *fmt)
++			       struct v4l2_mbus_framefmt *fmt, int pad_id)
+ {
+ 	struct v4l2_subdev_format sd_fmt = {
+ 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.pad = pad_id
+ 	};
+ 	int ret;
+ 
+@@ -598,29 +603,30 @@ static int unicam_calc_format_size_bpl(s
+ 	return 0;
+ }
+ 
+-static int unicam_reset_format(struct unicam_device *dev)
++static int unicam_reset_format(struct unicam_node *node)
+ {
++	struct unicam_device *dev = node->dev;
+ 	struct v4l2_mbus_framefmt mbus_fmt;
+ 	int ret;
+ 
+-	ret = __subdev_get_format(dev, &mbus_fmt);
++	ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
+ 	if (ret) {
+ 		unicam_err(dev, "Failed to get_format - ret %d\n", ret);
+ 		return ret;
+ 	}
+ 
+-	if (mbus_fmt.code != dev->fmt->code) {
++	if (mbus_fmt.code != dev->node[0].fmt->code) {
+ 		unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
+-			   dev->fmt->code, mbus_fmt.code);
++			   dev->node[0].fmt->code, mbus_fmt.code);
+ 		return ret;
+ 	}
+ 
+-	v4l2_fill_pix_format(&dev->v_fmt.fmt.pix, &mbus_fmt);
+-	dev->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	v4l2_fill_pix_format(&dev->node[0].v_fmt.fmt.pix, &mbus_fmt);
++	dev->node[0].v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ 
+-	unicam_calc_format_size_bpl(dev, dev->fmt, &dev->v_fmt);
++	unicam_calc_format_size_bpl(dev, dev->node[0].fmt, &dev->node[0].v_fmt);
+ 
+-	dev->m_fmt = mbus_fmt;
++	dev->node[0].m_fmt = mbus_fmt;
+ 
+ 	return 0;
+ }
+@@ -635,14 +641,14 @@ static void unicam_wr_dma_addr(struct un
+ 
+ 	reg_write(&dev->cfg, UNICAM_IBSA0, dmaaddr);
+ 	reg_write(&dev->cfg, UNICAM_IBEA0,
+-		  dmaaddr + dev->v_fmt.fmt.pix.sizeimage);
++		  dmaaddr + dev->node[0].v_fmt.fmt.pix.sizeimage);
+ }
+ 
+ static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
+ {
+ 	dma_addr_t start_addr, cur_addr;
+-	unsigned int stride = dev->v_fmt.fmt.pix.bytesperline;
+-	struct unicam_buffer *frm = dev->cur_frm;
++	unsigned int stride = dev->node[0].v_fmt.fmt.pix.bytesperline;
++	struct unicam_buffer *frm = dev->node[0].cur_frm;
+ 
+ 	if (!frm)
+ 		return 0;
+@@ -654,12 +660,12 @@ static inline unsigned int unicam_get_li
+ 
+ static inline void unicam_schedule_next_buffer(struct unicam_device *dev)
+ {
+-	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_dmaqueue *dma_q = &dev->node[0].dma_queue;
+ 	struct unicam_buffer *buf;
+ 	dma_addr_t addr;
+ 
+ 	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+-	dev->next_frm = buf;
++	dev->node[0].next_frm = buf;
+ 	list_del(&buf->list);
+ 
+ 	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
+@@ -668,11 +674,11 @@ static inline void unicam_schedule_next_
+ 
+ static inline void unicam_process_buffer_complete(struct unicam_device *dev)
+ {
+-	dev->cur_frm->vb.field = dev->m_fmt.field;
+-	dev->cur_frm->vb.sequence = dev->sequence++;
++	dev->node[0].cur_frm->vb.field = dev->node[0].m_fmt.field;
++	dev->node[0].cur_frm->vb.sequence = dev->sequence++;
+ 
+-	vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+-	dev->cur_frm = dev->next_frm;
++	vb2_buffer_done(&dev->node[0].cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
++	dev->node[0].cur_frm = dev->node[0].next_frm;
+ }
+ 
+ /*
+@@ -687,7 +693,7 @@ static irqreturn_t unicam_isr(int irq, v
+ {
+ 	struct unicam_device *unicam = (struct unicam_device *)dev;
+ 	struct unicam_cfg *cfg = &unicam->cfg;
+-	struct unicam_dmaqueue *dma_q = &unicam->dma_queue;
++	struct unicam_dmaqueue *dma_q = &unicam->node[0].dma_queue;
+ 	unsigned int lines_done = unicam_get_lines_done(dev);
+ 	unsigned int sequence = unicam->sequence;
+ 	int ista, sta;
+@@ -720,8 +726,9 @@ static irqreturn_t unicam_isr(int irq, v
+ 		 * Timestamp is to be when the first data byte was captured,
+ 		 * aka frame start.
+ 		 */
+-		if (unicam->cur_frm)
+-			unicam->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
++		if (unicam->node[0].cur_frm)
++			unicam->node[0].cur_frm->vb.vb2_buf.timestamp =
++				ktime_get_ns();
+ 	}
+ 	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
+ 		/*
+@@ -729,7 +736,8 @@ static irqreturn_t unicam_isr(int irq, v
+ 		 * stop the peripheral. Overwrite the frame we've just
+ 		 * captured instead.
+ 		 */
+-		if (unicam->cur_frm && unicam->cur_frm != unicam->next_frm)
++		if (unicam->node[0].cur_frm &&
++		    unicam->node[0].cur_frm != unicam->node[0].next_frm)
+ 			unicam_process_buffer_complete(unicam);
+ 	}
+ 
+@@ -738,11 +746,11 @@ static irqreturn_t unicam_isr(int irq, v
+ 	 * already started.
+ 	 */
+ 	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
+-		spin_lock(&unicam->dma_queue_lock);
++		spin_lock(&unicam->node[0].dma_queue_lock);
+ 		if (!list_empty(&dma_q->active) &&
+-		    unicam->cur_frm == unicam->next_frm)
++		    unicam->node[0].cur_frm == unicam->node[0].next_frm)
+ 			unicam_schedule_next_buffer(unicam);
+-		spin_unlock(&unicam->dma_queue_lock);
++		spin_unlock(&unicam->node[0].dma_queue_lock);
+ 	}
+ 
+ 	if (reg_read(&unicam->cfg, UNICAM_ICTL) & UNICAM_FCM) {
+@@ -756,7 +764,8 @@ static irqreturn_t unicam_isr(int irq, v
+ static int unicam_querycap(struct file *file, void *priv,
+ 			   struct v4l2_capability *cap)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
+ 	strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
+@@ -770,7 +779,8 @@ static int unicam_querycap(struct file *
+ static int unicam_enum_fmt_vid_cap(struct file *file, void  *priv,
+ 				   struct v4l2_fmtdesc *f)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	struct v4l2_subdev_mbus_code_enum mbus_code;
+ 	const struct unicam_fmt *fmt = NULL;
+ 	int index = 0;
+@@ -815,9 +825,9 @@ static int unicam_enum_fmt_vid_cap(struc
+ static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
+ 				struct v4l2_format *f)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
+ 
+-	*f = dev->v_fmt;
++	*f = node->v_fmt;
+ 
+ 	return 0;
+ }
+@@ -859,9 +869,11 @@ const struct unicam_fmt *get_first_suppo
+ static int unicam_try_fmt_vid_cap(struct file *file, void *priv,
+ 				  struct v4l2_format *f)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	struct v4l2_subdev_format sd_fmt = {
+ 		.which = V4L2_SUBDEV_FORMAT_TRY,
++		.pad = 0
+ 	};
+ 	struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
+ 	const struct unicam_fmt *fmt;
+@@ -939,8 +951,9 @@ static int unicam_try_fmt_vid_cap(struct
+ static int unicam_s_fmt_vid_cap(struct file *file, void *priv,
+ 				struct v4l2_format *f)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
+-	struct vb2_queue *q = &dev->buffer_queue;
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct vb2_queue *q = &node->buffer_queue;
+ 	struct v4l2_mbus_framefmt mbus_fmt = {0};
+ 	const struct unicam_fmt *fmt;
+ 	int ret;
+@@ -985,17 +998,18 @@ static int unicam_s_fmt_vid_cap(struct f
+ 		return -EINVAL;
+ 	}
+ 
+-	dev->fmt = fmt;
+-	dev->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat;
+-	dev->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline;
+-	unicam_reset_format(dev);
+-
+-	unicam_dbg(3, dev, "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n",
+-		   __func__, dev->v_fmt.fmt.pix.width,
+-		   dev->v_fmt.fmt.pix.height, mbus_fmt.code,
+-		   dev->v_fmt.fmt.pix.pixelformat);
++	node->fmt = fmt;
++	node->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat;
++	node->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline;
++	unicam_reset_format(node);
++
++	unicam_dbg(3, dev,
++		   "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n",
++		   __func__, node->v_fmt.fmt.pix.width,
++		   node->v_fmt.fmt.pix.height, mbus_fmt.code,
++		   node->v_fmt.fmt.pix.pixelformat);
+ 
+-	*f = dev->v_fmt;
++	*f = node->v_fmt;
+ 
+ 	return 0;
+ }
+@@ -1006,8 +1020,9 @@ static int unicam_queue_setup(struct vb2
+ 			      unsigned int sizes[],
+ 			      struct device *alloc_devs[])
+ {
+-	struct unicam_device *dev = vb2_get_drv_priv(vq);
+-	unsigned int size = dev->v_fmt.fmt.pix.sizeimage;
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++	unsigned int size = node->v_fmt.fmt.pix.sizeimage;
+ 
+ 	if (vq->num_buffers + *nbuffers < 3)
+ 		*nbuffers = 3 - vq->num_buffers;
+@@ -1029,15 +1044,16 @@ static int unicam_queue_setup(struct vb2
+ 
+ static int unicam_buffer_prepare(struct vb2_buffer *vb)
+ {
+-	struct unicam_device *dev = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_device *dev = node->dev;
+ 	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
+ 					      vb.vb2_buf);
+ 	unsigned long size;
+ 
+-	if (WARN_ON(!dev->fmt))
++	if (WARN_ON(!node->fmt))
+ 		return -EINVAL;
+ 
+-	size = dev->v_fmt.fmt.pix.sizeimage;
++	size = node->v_fmt.fmt.pix.sizeimage;
+ 	if (vb2_plane_size(vb, 0) < size) {
+ 		unicam_err(dev, "data will not fit into plane (%lu < %lu)\n",
+ 			   vb2_plane_size(vb, 0), size);
+@@ -1050,15 +1066,15 @@ static int unicam_buffer_prepare(struct
+ 
+ static void unicam_buffer_queue(struct vb2_buffer *vb)
+ {
+-	struct unicam_device *dev = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
+ 	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
+ 					      vb.vb2_buf);
+-	struct unicam_dmaqueue *dma_queue = &dev->dma_queue;
++	struct unicam_dmaqueue *dma_queue = &node->dma_queue;
+ 	unsigned long flags = 0;
+ 
+-	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	spin_lock_irqsave(&node->dma_queue_lock, flags);
+ 	list_add_tail(&buf->list, &dma_queue->active);
+-	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+ }
+ 
+ static void unicam_set_packing_config(struct unicam_device *dev)
+@@ -1066,11 +1082,12 @@ static void unicam_set_packing_config(st
+ 	int pack, unpack;
+ 	u32 val;
+ 
+-	if (dev->v_fmt.fmt.pix.pixelformat == dev->fmt->fourcc) {
++	if (dev->node[0].v_fmt.fmt.pix.pixelformat ==
++	    dev->node[0].fmt->fourcc) {
+ 		unpack = UNICAM_PUM_NONE;
+ 		pack = UNICAM_PPM_NONE;
+ 	} else {
+-		switch (dev->fmt->depth) {
++		switch (dev->node[0].fmt->depth) {
+ 		case 8:
+ 			unpack = UNICAM_PUM_UNPACK8;
+ 			break;
+@@ -1108,17 +1125,17 @@ static void unicam_cfg_image_id(struct u
+ 	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+ 		/* CSI2 mode */
+ 		reg_write(cfg, UNICAM_IDI0,
+-			  (dev->virtual_channel << 6) | dev->fmt->csi_dt);
++			(dev->virtual_channel << 6) | dev->node[0].fmt->csi_dt);
+ 	} else {
+ 		/* CCP2 mode */
+-		reg_write(cfg, UNICAM_IDI0, (0x80 | dev->fmt->csi_dt));
++		reg_write(cfg, UNICAM_IDI0, (0x80 | dev->node[0].fmt->csi_dt));
+ 	}
+ }
+ 
+ static void unicam_start_rx(struct unicam_device *dev, unsigned long addr)
+ {
+ 	struct unicam_cfg *cfg = &dev->cfg;
+-	int line_int_freq = dev->v_fmt.fmt.pix.height >> 2;
++	int line_int_freq = dev->node[0].v_fmt.fmt.pix.height >> 2;
+ 	unsigned int i;
+ 	u32 val;
+ 
+@@ -1266,7 +1283,8 @@ static void unicam_start_rx(struct unica
+ 		reg_write(cfg, UNICAM_DAT3, val);
+ 	}
+ 
+-	reg_write(&dev->cfg, UNICAM_IBLS, dev->v_fmt.fmt.pix.bytesperline);
++	reg_write(&dev->cfg, UNICAM_IBLS,
++		  dev->node[0].v_fmt.fmt.pix.bytesperline);
+ 	unicam_wr_dma_addr(dev, addr);
+ 	unicam_set_packing_config(dev);
+ 	unicam_cfg_image_id(dev);
+@@ -1327,21 +1345,22 @@ static void unicam_disable(struct unicam
+ 
+ static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count)
+ {
+-	struct unicam_device *dev = vb2_get_drv_priv(vq);
+-	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+ 	struct unicam_buffer *buf, *tmp;
+ 	unsigned long addr = 0;
+ 	unsigned long flags;
+ 	int ret;
+ 
+-	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	spin_lock_irqsave(&node->dma_queue_lock, flags);
+ 	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+-	dev->cur_frm = buf;
+-	dev->next_frm = buf;
++	node->cur_frm = buf;
++	node->next_frm = buf;
+ 	list_del(&buf->list);
+-	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+ 
+-	addr = vb2_dma_contig_plane_dma_addr(&dev->cur_frm->vb.vb2_buf, 0);
++	addr = vb2_dma_contig_plane_dma_addr(&node->cur_frm->vb.vb2_buf, 0);
+ 	dev->sequence = 0;
+ 
+ 	ret = unicam_runtime_get(dev);
+@@ -1411,20 +1430,21 @@ err_release_buffers:
+ 		list_del(&buf->list);
+ 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
+ 	}
+-	if (dev->cur_frm != dev->next_frm)
+-		vb2_buffer_done(&dev->next_frm->vb.vb2_buf,
++	if (node->cur_frm != node->next_frm)
++		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+ 				VB2_BUF_STATE_QUEUED);
+-	vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
+-	dev->next_frm = NULL;
+-	dev->cur_frm = NULL;
++	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
++	node->next_frm = NULL;
++	node->cur_frm = NULL;
+ 
+ 	return ret;
+ }
+ 
+ static void unicam_stop_streaming(struct vb2_queue *vq)
+ {
+-	struct unicam_device *dev = vb2_get_drv_priv(vq);
+-	struct unicam_dmaqueue *dma_q = &dev->dma_queue;
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+ 	struct unicam_buffer *buf, *tmp;
+ 	unsigned long flags;
+ 
+@@ -1434,22 +1454,24 @@ static void unicam_stop_streaming(struct
+ 	unicam_disable(dev);
+ 
+ 	/* Release all active buffers */
+-	spin_lock_irqsave(&dev->dma_queue_lock, flags);
++	spin_lock_irqsave(&node->dma_queue_lock, flags);
+ 	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
+ 		list_del(&buf->list);
+ 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ 	}
+ 
+-	if (dev->cur_frm == dev->next_frm) {
+-		vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++	if (node->cur_frm == node->next_frm) {
++		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
++				VB2_BUF_STATE_ERROR);
+ 	} else {
+-		vb2_buffer_done(&dev->cur_frm->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+-		vb2_buffer_done(&dev->next_frm->vb.vb2_buf,
++		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
++				VB2_BUF_STATE_ERROR);
++		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+ 				VB2_BUF_STATE_ERROR);
+ 	}
+-	dev->cur_frm = NULL;
+-	dev->next_frm = NULL;
+-	spin_unlock_irqrestore(&dev->dma_queue_lock, flags);
++	node->cur_frm = NULL;
++	node->next_frm = NULL;
++	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+ 
+ 	clk_disable_unprepare(dev->clock);
+ 	unicam_runtime_put(dev);
+@@ -1458,7 +1480,8 @@ static void unicam_stop_streaming(struct
+ static int unicam_enum_input(struct file *file, void *priv,
+ 			     struct v4l2_input *inp)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	if (inp->index != 0)
+ 		return -EINVAL;
+@@ -1506,21 +1529,24 @@ static int unicam_s_input(struct file *f
+ static int unicam_querystd(struct file *file, void *priv,
+ 			   v4l2_std_id *std)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, video, querystd, std);
+ }
+ 
+ static int unicam_g_std(struct file *file, void *priv, v4l2_std_id *std)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, video, g_std, std);
+ }
+ 
+ static int unicam_s_std(struct file *file, void *priv, v4l2_std_id std)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	int ret;
+ 	v4l2_std_id current_std;
+ 
+@@ -1531,29 +1557,31 @@ static int unicam_s_std(struct file *fil
+ 	if (std == current_std)
+ 		return 0;
+ 
+-	if (vb2_is_busy(&dev->buffer_queue))
++	if (vb2_is_busy(&node->buffer_queue))
+ 		return -EBUSY;
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, video, s_std, std);
+ 
+ 	/* Force recomputation of bytesperline */
+-	dev->v_fmt.fmt.pix.bytesperline = 0;
++	node->v_fmt.fmt.pix.bytesperline = 0;
+ 
+-	unicam_reset_format(dev);
++	unicam_reset_format(node);
+ 
+ 	return ret;
+ }
+ 
+ static int unicam_s_edid(struct file *file, void *priv, struct v4l2_edid *edid)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, pad, set_edid, edid);
+ }
+ 
+ static int unicam_g_edid(struct file *file, void *priv, struct v4l2_edid *edid)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, pad, get_edid, edid);
+ }
+@@ -1561,7 +1589,8 @@ static int unicam_g_edid(struct file *fi
+ static int unicam_enum_framesizes(struct file *file, void *priv,
+ 				  struct v4l2_frmsizeenum *fsize)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	const struct unicam_fmt *fmt;
+ 	struct v4l2_subdev_frame_size_enum fse;
+ 	int ret;
+@@ -1596,7 +1625,8 @@ static int unicam_enum_framesizes(struct
+ static int unicam_enum_frameintervals(struct file *file, void *priv,
+ 				      struct v4l2_frmivalenum *fival)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	const struct unicam_fmt *fmt;
+ 	struct v4l2_subdev_frame_interval_enum fie = {
+ 		.index = fival->index,
+@@ -1624,14 +1654,16 @@ static int unicam_enum_frameintervals(st
+ 
+ static int unicam_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_g_parm_cap(video_devdata(file), dev->sensor, a);
+ }
+ 
+ static int unicam_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_s_parm_cap(video_devdata(file), dev->sensor, a);
+ }
+@@ -1639,7 +1671,8 @@ static int unicam_s_parm(struct file *fi
+ static int unicam_g_dv_timings(struct file *file, void *priv,
+ 			       struct v4l2_dv_timings *timings)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, video, g_dv_timings, timings);
+ }
+@@ -1647,7 +1680,8 @@ static int unicam_g_dv_timings(struct fi
+ static int unicam_s_dv_timings(struct file *file, void *priv,
+ 			       struct v4l2_dv_timings *timings)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	struct v4l2_dv_timings current_timings;
+ 	int ret;
+ 
+@@ -1657,15 +1691,15 @@ static int unicam_s_dv_timings(struct fi
+ 	if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
+ 		return 0;
+ 
+-	if (vb2_is_busy(&dev->buffer_queue))
++	if (vb2_is_busy(&node->buffer_queue))
+ 		return -EBUSY;
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, video, s_dv_timings, timings);
+ 
+ 	/* Force recomputation of bytesperline */
+-	dev->v_fmt.fmt.pix.bytesperline = 0;
++	node->v_fmt.fmt.pix.bytesperline = 0;
+ 
+-	unicam_reset_format(dev);
++	unicam_reset_format(node);
+ 
+ 	return ret;
+ }
+@@ -1673,7 +1707,8 @@ static int unicam_s_dv_timings(struct fi
+ static int unicam_query_dv_timings(struct file *file, void *priv,
+ 				   struct v4l2_dv_timings *timings)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, video, query_dv_timings, timings);
+ }
+@@ -1681,7 +1716,8 @@ static int unicam_query_dv_timings(struc
+ static int unicam_enum_dv_timings(struct file *file, void *priv,
+ 				  struct v4l2_enum_dv_timings *timings)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, pad, enum_dv_timings, timings);
+ }
+@@ -1689,7 +1725,8 @@ static int unicam_enum_dv_timings(struct
+ static int unicam_dv_timings_cap(struct file *file, void *priv,
+ 				 struct v4l2_dv_timings_cap *cap)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 
+ 	return v4l2_subdev_call(dev->sensor, pad, dv_timings_cap, cap);
+ }
+@@ -1707,7 +1744,8 @@ static int unicam_subscribe_event(struct
+ 
+ static int unicam_log_status(struct file *file, void *fh)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	struct unicam_cfg *cfg = &dev->cfg;
+ 	u32 reg;
+ 
+@@ -1716,10 +1754,10 @@ static int unicam_log_status(struct file
+ 
+ 	unicam_info(dev, "-----Receiver status-----\n");
+ 	unicam_info(dev, "V4L2 width/height:   %ux%u\n",
+-		    dev->v_fmt.fmt.pix.width, dev->v_fmt.fmt.pix.height);
+-	unicam_info(dev, "Mediabus format:     %08x\n", dev->fmt->code);
++		    node->v_fmt.fmt.pix.width, node->v_fmt.fmt.pix.height);
++	unicam_info(dev, "Mediabus format:     %08x\n", node->fmt->code);
+ 	unicam_info(dev, "V4L2 format:         %08x\n",
+-		    dev->v_fmt.fmt.pix.pixelformat);
++		    node->v_fmt.fmt.pix.pixelformat);
+ 	reg = reg_read(&dev->cfg, UNICAM_IPIPE);
+ 	unicam_info(dev, "Unpacking/packing:   %u / %u\n",
+ 		    get_field(reg, UNICAM_PUM_MASK),
+@@ -1744,7 +1782,7 @@ static void unicam_notify(struct v4l2_su
+ 
+ 	switch (notification) {
+ 	case V4L2_DEVICE_NOTIFY_EVENT:
+-		v4l2_event_queue(&dev->video_dev, arg);
++		v4l2_event_queue(&dev->node[0].video_dev, arg);
+ 		break;
+ 	default:
+ 		break;
+@@ -1767,10 +1805,11 @@ static const struct vb2_ops unicam_video
+  */
+ static int unicam_open(struct file *file)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	int ret;
+ 
+-	mutex_lock(&dev->lock);
++	mutex_lock(&node->lock);
+ 
+ 	ret = v4l2_fh_open(file);
+ 	if (ret) {
+@@ -1790,18 +1829,19 @@ static int unicam_open(struct file *file
+ 	ret = 0;
+ 
+ unlock:
+-	mutex_unlock(&dev->lock);
++	mutex_unlock(&node->lock);
+ 	return ret;
+ }
+ 
+ static int unicam_release(struct file *file)
+ {
+-	struct unicam_device *dev = video_drvdata(file);
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
+ 	struct v4l2_subdev *sd = dev->sensor;
+ 	bool fh_singular;
+ 	int ret;
+ 
+-	mutex_lock(&dev->lock);
++	mutex_lock(&node->lock);
+ 
+ 	fh_singular = v4l2_fh_is_singular_file(file);
+ 
+@@ -1810,7 +1850,7 @@ static int unicam_release(struct file *f
+ 	if (fh_singular)
+ 		v4l2_subdev_call(sd, core, s_power, 0);
+ 
+-	mutex_unlock(&dev->lock);
++	mutex_unlock(&node->lock);
+ 
+ 	return ret;
+ }
+@@ -1892,7 +1932,8 @@ unicam_async_bound(struct v4l2_async_not
+ 	return 0;
+ }
+ 
+-static int unicam_probe_complete(struct unicam_device *unicam)
++static int register_node(struct unicam_device *unicam, struct unicam_node *node,
++			 enum v4l2_buf_type type, int pad_id)
+ {
+ 	struct video_device *vdev;
+ 	struct vb2_queue *q;
+@@ -1900,15 +1941,7 @@ static int unicam_probe_complete(struct
+ 	const struct unicam_fmt *fmt;
+ 	int ret;
+ 
+-	v4l2_set_subdev_hostdata(unicam->sensor, unicam);
+-
+-	unicam->v4l2_dev.notify = unicam_notify;
+-
+-	unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
+-	if (!unicam->sensor_config)
+-		return -ENOMEM;
+-
+-	ret = __subdev_get_format(unicam, &mbus_fmt);
++	ret = __subdev_get_format(unicam, &mbus_fmt, pad_id);
+ 	if (ret) {
+ 		unicam_err(unicam, "Failed to get_format - ret %d\n", ret);
+ 		return ret;
+@@ -1938,14 +1971,15 @@ static int unicam_probe_complete(struct
+ 			return -EINVAL;
+ 	}
+ 
+-	unicam->fmt = fmt;
++	node->pad_id = pad_id;
++	node->fmt = fmt;
+ 	if (fmt->fourcc)
+-		unicam->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++		node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+ 	else
+-		unicam->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
++		node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
+ 
+ 	/* Read current subdev format */
+-	unicam_reset_format(unicam);
++	unicam_reset_format(node);
+ 
+ 	if (v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+ 		v4l2_std_id tvnorms;
+@@ -1962,27 +1996,30 @@ static int unicam_probe_complete(struct
+ 				       g_tvnorms, &tvnorms);
+ 		if (WARN_ON(ret))
+ 			return -EINVAL;
+-		unicam->video_dev.tvnorms |= tvnorms;
++		node->video_dev.tvnorms |= tvnorms;
+ 	}
+ 
+-	spin_lock_init(&unicam->dma_queue_lock);
+-	mutex_init(&unicam->lock);
++	spin_lock_init(&node->dma_queue_lock);
++	mutex_init(&node->lock);
+ 
+-	/* Add controls from the subdevice */
+-	ret = v4l2_ctrl_add_handler(&unicam->ctrl_handler,
+-				    unicam->sensor->ctrl_handler, NULL, true);
+-	if (ret < 0)
+-		return ret;
++	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
++		/* Add controls from the subdevice */
++		ret = v4l2_ctrl_add_handler(&node->ctrl_handler,
++					    unicam->sensor->ctrl_handler, NULL,
++					    true);
++		if (ret < 0)
++			return ret;
++	}
+ 
+-	q = &unicam->buffer_queue;
+-	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	q = &node->buffer_queue;
++	q->type = type;
+ 	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
+-	q->drv_priv = unicam;
++	q->drv_priv = node;
+ 	q->ops = &unicam_video_qops;
+ 	q->mem_ops = &vb2_dma_contig_memops;
+ 	q->buf_struct_size = sizeof(struct unicam_buffer);
+ 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+-	q->lock = &unicam->lock;
++	q->lock = &node->lock;
+ 	q->min_buffers_needed = 2;
+ 	q->dev = &unicam->pdev->dev;
+ 
+@@ -1992,9 +2029,9 @@ static int unicam_probe_complete(struct
+ 		return ret;
+ 	}
+ 
+-	INIT_LIST_HEAD(&unicam->dma_queue.active);
++	INIT_LIST_HEAD(&node->dma_queue.active);
+ 
+-	vdev = &unicam->video_dev;
++	vdev = &node->video_dev;
+ 	strlcpy(vdev->name, UNICAM_MODULE_NAME, sizeof(vdev->name));
+ 	vdev->release = video_device_release_empty;
+ 	vdev->fops = &unicam_fops;
+@@ -2002,69 +2039,113 @@ static int unicam_probe_complete(struct
+ 	vdev->v4l2_dev = &unicam->v4l2_dev;
+ 	vdev->vfl_dir = VFL_DIR_RX;
+ 	vdev->queue = q;
+-	vdev->lock = &unicam->lock;
++	vdev->lock = &node->lock;
+ 	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+ 			    V4L2_CAP_READWRITE;
+-
+ 	/* If the source has no controls then remove our ctrl handler. */
+-	if (list_empty(&unicam->ctrl_handler.ctrls))
++	if (list_empty(&node->ctrl_handler.ctrls))
+ 		unicam->v4l2_dev.ctrl_handler = NULL;
+ 
+-	video_set_drvdata(vdev, unicam);
++	node->dev = unicam;
++	video_set_drvdata(vdev, node);
+ 	vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
+ 
+ 	if (!v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_STD);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_STD);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUMSTD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_STD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUMSTD);
+ 	}
+ 	if (!v4l2_subdev_has_op(unicam->sensor, video, querystd))
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_QUERYSTD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERYSTD);
+ 	if (!v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_EDID);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_EDID);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_DV_TIMINGS_CAP);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_DV_TIMINGS);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_DV_TIMINGS);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUM_DV_TIMINGS);
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_QUERY_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_EDID);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_EDID);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_DV_TIMINGS_CAP);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERY_DV_TIMINGS);
+ 	}
+ 	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
+-		v4l2_disable_ioctl(&unicam->video_dev,
++		v4l2_disable_ioctl(&node->video_dev,
+ 				   VIDIOC_ENUM_FRAMEINTERVALS);
+ 	if (!v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_G_PARM);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_PARM);
+ 	if (!v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_S_PARM);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_PARM);
+ 
+ 	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
+-		v4l2_disable_ioctl(&unicam->video_dev, VIDIOC_ENUM_FRAMESIZES);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES);
+ 
+ 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+ 	if (ret) {
+ 		unicam_err(unicam, "Unable to register video device.\n");
+ 		return ret;
+ 	}
++	node->registered = true;
+ 
+-	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
++	ret = media_create_pad_link(&unicam->sensor->entity,
++				    0, &node->video_dev.entity, 0,
++				    MEDIA_LNK_FL_ENABLED |
++				    MEDIA_LNK_FL_IMMUTABLE);
++	if (ret)
++		unicam_err(unicam, "Unable to create pad links.\n");
++
++	return ret;
++}
++
++static void unregister_nodes(struct unicam_device *unicam)
++{
++	if (unicam->node[0].registered) {
++		video_unregister_device(&unicam->node[0].video_dev);
++		unicam->node[0].registered = false;
++	}
++	if (unicam->node[1].registered) {
++		video_unregister_device(&unicam->node[1].video_dev);
++		unicam->node[1].registered = false;
++	}
++}
++
++static int unicam_probe_complete(struct unicam_device *unicam)
++{
++	int ret;
++
++	v4l2_set_subdev_hostdata(unicam->sensor, unicam);
++
++	unicam->v4l2_dev.notify = unicam_notify;
++
++	unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
++	if (!unicam->sensor_config)
++		return -ENOMEM;
++
++	ret = register_node(unicam, &unicam->node[0],
++			    V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
+ 	if (ret) {
+-		unicam_err(unicam,
+-			   "Unable to register subdev nodes.\n");
+-		video_unregister_device(&unicam->video_dev);
+-		return ret;
++		unicam_err(unicam, "Unable to register subdev node 0.\n");
++		goto unregister;
++	}
++	if (unicam->sensor->entity.num_pads >= 2) {
++		ret = register_node(unicam, &unicam->node[1],
++				    V4L2_BUF_TYPE_META_CAPTURE, 1);
++		if (ret) {
++			unicam_err(unicam,
++				   "Unable to register subdev node 1.\n");
++			goto unregister;
++		}
+ 	}
+ 
+-	ret = media_create_pad_link(&unicam->sensor->entity, 0,
+-				    &unicam->video_dev.entity, 0,
+-				    MEDIA_LNK_FL_ENABLED |
+-				    MEDIA_LNK_FL_IMMUTABLE);
++	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
+ 	if (ret) {
+-		unicam_err(unicam, "Unable to create pad links.\n");
+-		video_unregister_device(&unicam->video_dev);
+-		return ret;
++		unicam_err(unicam, "Unable to register subdev nodes.\n");
++		goto unregister;
+ 	}
+ 
+ 	return 0;
++
++unregister:
++	unregister_nodes(unicam);
++
++	return ret;
+ }
+ 
+ static int unicam_async_complete(struct v4l2_async_notifier *notifier)
+@@ -2274,7 +2355,8 @@ static int unicam_probe(struct platform_
+ 		 pdev->dev.driver->name, dev_name(&pdev->dev));
+ 	unicam->mdev.hw_revision = 1;
+ 
+-	media_entity_pads_init(&unicam->video_dev.entity, 1, &unicam->pad);
++	media_entity_pads_init(&unicam->node[0].video_dev.entity, 1,
++			       &unicam->node[0].pad);
+ 	media_device_init(&unicam->mdev);
+ 
+ 	unicam->v4l2_dev.mdev = &unicam->mdev;
+@@ -2294,7 +2376,7 @@ static int unicam_probe(struct platform_
+ 	}
+ 
+ 	/* Reserve space for the controls */
+-	hdl = &unicam->ctrl_handler;
++	hdl = &unicam->node[0].ctrl_handler;
+ 	ret = v4l2_ctrl_handler_init(hdl, 16);
+ 	if (ret < 0)
+ 		goto media_unregister;
+@@ -2335,9 +2417,9 @@ static int unicam_remove(struct platform
+ 	pm_runtime_disable(&pdev->dev);
+ 
+ 	v4l2_async_notifier_unregister(&unicam->notifier);
+-	v4l2_ctrl_handler_free(&unicam->ctrl_handler);
++	v4l2_ctrl_handler_free(&unicam->node[0].ctrl_handler);
+ 	v4l2_device_unregister(&unicam->v4l2_dev);
+-	video_unregister_device(&unicam->video_dev);
++	unregister_nodes(unicam);
+ 	if (unicam->sensor_config)
+ 		v4l2_subdev_free_pad_config(unicam->sensor_config);
+ 	media_device_unregister(&unicam->mdev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0213-media-bcm2835-unicam-Add-embedded-data-node.patch b/target/linux/bcm27xx/patches-5.10/950-0213-media-bcm2835-unicam-Add-embedded-data-node.patch
new file mode 100644
index 0000000000..4fc8270869
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0213-media-bcm2835-unicam-Add-embedded-data-node.patch
@@ -0,0 +1,1170 @@
+From 0dae2f81f08fc6f8641e10b99c61e73314553d79 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 16 Apr 2020 11:35:41 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add embedded data node.
+
+This patch adds a new node in the bcm2835-unicam driver to support
+CSI-2 embedded data streams.  The subdevice is queried to see if
+embedded data is available from the sensor.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 667 +++++++++++++-----
+ 1 file changed, 474 insertions(+), 193 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -109,8 +109,15 @@ MODULE_PARM_DESC(debug, "Debug level 0-3
+ /* Define a nominal minimum image size */
+ #define MIN_WIDTH	16
+ #define MIN_HEIGHT	16
+-/* Maximum number of simulataneous streams Uncaim can handle. */
+-#define MAX_NODES	2
++/* Default size of the embedded buffer */
++#define UNICAM_EMBEDDED_SIZE	8192
++
++enum pad_types {
++	IMAGE_PAD,
++	METADATA_PAD,
++	MAX_NODES
++};
++
+ /*
+  * struct unicam_fmt - Unicam media bus format information
+  * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a.
+@@ -327,6 +334,12 @@ static const struct unicam_fmt formats[]
+ 		.depth		= 12,
+ 		.csi_dt		= 0x2c,
+ 	},
++	/* Embedded data format */
++	{
++		.fourcc		= V4L2_META_FMT_SENSOR_DATA,
++		.code		= MEDIA_BUS_FMT_SENSOR_DATA,
++		.depth		= 8,
++	}
+ };
+ 
+ struct unicam_dmaqueue {
+@@ -348,7 +361,9 @@ struct unicam_cfg {
+ #define MAX_POSSIBLE_PIX_FMTS (ARRAY_SIZE(formats))
+ 
+ struct unicam_node {
+-	bool registered;
++	int registered;
++	int open;
++	int streaming;
+ 	unsigned int pad_id;
+ 	/* Pointer pointing to current v4l2_buffer */
+ 	struct unicam_buffer *cur_frm;
+@@ -374,6 +389,7 @@ struct unicam_node {
+ 	struct unicam_device *dev;
+ 	struct media_pad pad;
+ 	struct v4l2_ctrl_handler ctrl_handler;
++	unsigned int embedded_lines;
+ };
+ 
+ struct unicam_device {
+@@ -401,8 +417,6 @@ struct unicam_device {
+ 	struct v4l2_subdev *sensor;
+ 	/* Pad config for the sensor */
+ 	struct v4l2_subdev_pad_config *sensor_config;
+-	/* current input at the sub device */
+-	int current_input;
+ 
+ 	unsigned int virtual_channel;
+ 	enum v4l2_mbus_type bus_type;
+@@ -413,10 +427,7 @@ struct unicam_device {
+ 	unsigned int bus_flags;
+ 	unsigned int max_data_lanes;
+ 	unsigned int active_data_lanes;
+-
+-	struct v4l2_rect crop;
+-	/* Flag to denote that we are processing buffers */
+-	int streaming;
++	bool sensor_embedded_data;
+ 
+ 	struct unicam_node node[MAX_NODES];
+ };
+@@ -488,6 +499,7 @@ static int check_mbus_format(struct unic
+ 	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
+ 		memset(&mbus_code, 0, sizeof(mbus_code));
+ 		mbus_code.index = i;
++		mbus_code.pad = IMAGE_PAD;
+ 		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ 
+ 		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
+@@ -552,10 +564,11 @@ static int __subdev_get_format(struct un
+ }
+ 
+ static int __subdev_set_format(struct unicam_device *dev,
+-			       struct v4l2_mbus_framefmt *fmt)
++			       struct v4l2_mbus_framefmt *fmt, int pad_id)
+ {
+ 	struct v4l2_subdev_format sd_fmt = {
+ 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.pad = pad_id
+ 	};
+ 	int ret;
+ 
+@@ -566,8 +579,12 @@ static int __subdev_set_format(struct un
+ 	if (ret < 0)
+ 		return ret;
+ 
+-	unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__,
+-		   fmt->width, fmt->height, fmt->code);
++	if (pad_id == IMAGE_PAD)
++		unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__, fmt->width,
++			   fmt->height, fmt->code);
++	else
++		unicam_dbg(1, dev, "%s Embedded data code:%04x\n", __func__,
++			   sd_fmt.format.code);
+ 
+ 	return 0;
+ }
+@@ -609,46 +626,70 @@ static int unicam_reset_format(struct un
+ 	struct v4l2_mbus_framefmt mbus_fmt;
+ 	int ret;
+ 
+-	ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
+-	if (ret) {
+-		unicam_err(dev, "Failed to get_format - ret %d\n", ret);
+-		return ret;
+-	}
++	if (dev->sensor_embedded_data || node->pad_id != METADATA_PAD) {
++		ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
++		if (ret) {
++			unicam_err(dev, "Failed to get_format - ret %d\n", ret);
++			return ret;
++		}
+ 
+-	if (mbus_fmt.code != dev->node[0].fmt->code) {
+-		unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
+-			   dev->node[0].fmt->code, mbus_fmt.code);
+-		return ret;
++		if (mbus_fmt.code != node->fmt->code) {
++			unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
++				   node->fmt->code, mbus_fmt.code);
++			return ret;
++		}
+ 	}
+ 
+-	v4l2_fill_pix_format(&dev->node[0].v_fmt.fmt.pix, &mbus_fmt);
+-	dev->node[0].v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+-
+-	unicam_calc_format_size_bpl(dev, dev->node[0].fmt, &dev->node[0].v_fmt);
+-
+-	dev->node[0].m_fmt = mbus_fmt;
++	if (node->pad_id == IMAGE_PAD) {
++		v4l2_fill_pix_format(&node->v_fmt.fmt.pix, &mbus_fmt);
++		node->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++		unicam_calc_format_size_bpl(dev, node->fmt, &node->v_fmt);
++	} else {
++		node->v_fmt.type = V4L2_BUF_TYPE_META_CAPTURE;
++		node->v_fmt.fmt.meta.dataformat = V4L2_META_FMT_SENSOR_DATA;
++		if (dev->sensor_embedded_data) {
++			node->v_fmt.fmt.meta.buffersize =
++					mbus_fmt.width * mbus_fmt.height;
++			node->embedded_lines = mbus_fmt.height;
++		} else {
++			node->v_fmt.fmt.meta.buffersize = UNICAM_EMBEDDED_SIZE;
++			node->embedded_lines = 1;
++		}
++	}
+ 
++	node->m_fmt = mbus_fmt;
+ 	return 0;
+ }
+ 
+-static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr)
++static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr,
++			       int pad_id)
+ {
++	dma_addr_t endaddr;
++
+ 	/*
+ 	 * dmaaddr should be a 32-bit address with the top two bits set to 0x3
+ 	 * to signify uncached access through the Videocore memory controller.
+ 	 */
+ 	BUG_ON((dmaaddr >> 30) != 0x3);
+ 
+-	reg_write(&dev->cfg, UNICAM_IBSA0, dmaaddr);
+-	reg_write(&dev->cfg, UNICAM_IBEA0,
+-		  dmaaddr + dev->node[0].v_fmt.fmt.pix.sizeimage);
++	if (pad_id == IMAGE_PAD) {
++		endaddr = dmaaddr +
++			  dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage;
++		reg_write(&dev->cfg, UNICAM_IBSA0, dmaaddr);
++		reg_write(&dev->cfg, UNICAM_IBEA0, endaddr);
++	} else {
++		endaddr = dmaaddr +
++			  dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
++		reg_write(&dev->cfg, UNICAM_DBSA0, dmaaddr);
++		reg_write(&dev->cfg, UNICAM_DBEA0, endaddr);
++	}
+ }
+ 
+ static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
+ {
+ 	dma_addr_t start_addr, cur_addr;
+-	unsigned int stride = dev->node[0].v_fmt.fmt.pix.bytesperline;
+-	struct unicam_buffer *frm = dev->node[0].cur_frm;
++	unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline;
++	struct unicam_buffer *frm = dev->node[IMAGE_PAD].cur_frm;
+ 
+ 	if (!frm)
+ 		return 0;
+@@ -658,27 +699,51 @@ static inline unsigned int unicam_get_li
+ 	return (unsigned int)(cur_addr - start_addr) / stride;
+ }
+ 
+-static inline void unicam_schedule_next_buffer(struct unicam_device *dev)
++static inline void unicam_schedule_next_buffer(struct unicam_node *node)
+ {
+-	struct unicam_dmaqueue *dma_q = &dev->node[0].dma_queue;
++	struct unicam_device *dev = node->dev;
++	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+ 	struct unicam_buffer *buf;
+ 	dma_addr_t addr;
+ 
+ 	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+-	dev->node[0].next_frm = buf;
++	node->next_frm = buf;
+ 	list_del(&buf->list);
+ 
+ 	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
+-	unicam_wr_dma_addr(dev, addr);
++	unicam_wr_dma_addr(dev, addr, node->pad_id);
+ }
+ 
+-static inline void unicam_process_buffer_complete(struct unicam_device *dev)
++static inline void unicam_process_buffer_complete(struct unicam_node *node,
++						  unsigned int sequence)
+ {
+-	dev->node[0].cur_frm->vb.field = dev->node[0].m_fmt.field;
+-	dev->node[0].cur_frm->vb.sequence = dev->sequence++;
++	node->cur_frm->vb.field = node->m_fmt.field;
++	node->cur_frm->vb.sequence = sequence;
++
++	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
++	node->cur_frm = node->next_frm;
++}
+ 
+-	vb2_buffer_done(&dev->node[0].cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+-	dev->node[0].cur_frm = dev->node[0].next_frm;
++static int unicam_num_nodes_streaming(struct unicam_device *dev)
++{
++	return dev->node[IMAGE_PAD].streaming +
++	       dev->node[METADATA_PAD].streaming;
++}
++
++static int unicam_all_nodes_streaming(struct unicam_device *dev)
++{
++	int ret;
++
++	ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming;
++	ret &= !dev->node[METADATA_PAD].open ||
++	       dev->node[METADATA_PAD].streaming;
++	return ret;
++}
++
++static int unicam_all_nodes_disabled(struct unicam_device *dev)
++{
++	return !dev->node[IMAGE_PAD].streaming &&
++	       !dev->node[METADATA_PAD].streaming;
+ }
+ 
+ /*
+@@ -693,10 +758,12 @@ static irqreturn_t unicam_isr(int irq, v
+ {
+ 	struct unicam_device *unicam = (struct unicam_device *)dev;
+ 	struct unicam_cfg *cfg = &unicam->cfg;
+-	struct unicam_dmaqueue *dma_q = &unicam->node[0].dma_queue;
+ 	unsigned int lines_done = unicam_get_lines_done(dev);
+ 	unsigned int sequence = unicam->sequence;
++	int num_nodes_streaming = unicam_num_nodes_streaming(dev);
+ 	int ista, sta;
++	u64 ts;
++	int i;
+ 
+ 	/*
+ 	 * Don't service interrupts if not streaming.
+@@ -704,7 +771,7 @@ static irqreturn_t unicam_isr(int irq, v
+ 	 * peripheral without the kernel knowing (that
+ 	 * shouldn't happen, but causes issues if it does).
+ 	 */
+-	if (!unicam->streaming)
++	if (unicam_all_nodes_disabled(unicam))
+ 		return IRQ_HANDLED;
+ 
+ 	sta = reg_read(cfg, UNICAM_STA);
+@@ -726,9 +793,12 @@ static irqreturn_t unicam_isr(int irq, v
+ 		 * Timestamp is to be when the first data byte was captured,
+ 		 * aka frame start.
+ 		 */
+-		if (unicam->node[0].cur_frm)
+-			unicam->node[0].cur_frm->vb.vb2_buf.timestamp =
+-				ktime_get_ns();
++		ts = ktime_get_ns();
++		for (i = 0; i < num_nodes_streaming; i++) {
++			if (unicam->node[i].cur_frm)
++				unicam->node[i].cur_frm->vb.vb2_buf.timestamp =
++								ts;
++		}
+ 	}
+ 	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
+ 		/*
+@@ -736,9 +806,13 @@ static irqreturn_t unicam_isr(int irq, v
+ 		 * stop the peripheral. Overwrite the frame we've just
+ 		 * captured instead.
+ 		 */
+-		if (unicam->node[0].cur_frm &&
+-		    unicam->node[0].cur_frm != unicam->node[0].next_frm)
+-			unicam_process_buffer_complete(unicam);
++		for (i = 0; i < num_nodes_streaming; i++) {
++			if (unicam->node[i].cur_frm &&
++			    unicam->node[i].cur_frm != unicam->node[i].next_frm)
++				unicam_process_buffer_complete(&unicam->node[i],
++							       sequence);
++		}
++		unicam->sequence++;
+ 	}
+ 
+ 	/* Cannot swap buffer at frame end, there may be a race condition
+@@ -746,11 +820,13 @@ static irqreturn_t unicam_isr(int irq, v
+ 	 * already started.
+ 	 */
+ 	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
+-		spin_lock(&unicam->node[0].dma_queue_lock);
+-		if (!list_empty(&dma_q->active) &&
+-		    unicam->node[0].cur_frm == unicam->node[0].next_frm)
+-			unicam_schedule_next_buffer(unicam);
+-		spin_unlock(&unicam->node[0].dma_queue_lock);
++		for (i = 0; i < num_nodes_streaming; i++) {
++			spin_lock(&unicam->node[i].dma_queue_lock);
++			if (!list_empty(&unicam->node[i].dma_queue.active) &&
++			    unicam->node[i].cur_frm == unicam->node[i].next_frm)
++				unicam_schedule_next_buffer(&unicam->node[i]);
++			spin_unlock(&unicam->node[i].dma_queue_lock);
++		}
+ 	}
+ 
+ 	if (reg_read(&unicam->cfg, UNICAM_ICTL) & UNICAM_FCM) {
+@@ -773,6 +849,15 @@ static int unicam_querycap(struct file *
+ 	snprintf(cap->bus_info, sizeof(cap->bus_info),
+ 		 "platform:%s", dev->v4l2_dev.name);
+ 
++	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
++			    V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS |
++			    V4L2_CAP_META_CAPTURE;
++
++	if (node->pad_id == IMAGE_PAD)
++		cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
++	else
++		cap->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
++
+ 	return 0;
+ }
+ 
+@@ -787,9 +872,14 @@ static int unicam_enum_fmt_vid_cap(struc
+ 	int ret = 0;
+ 	int i;
+ 
++	if (node->pad_id == METADATA_PAD)
++		return -EINVAL;
++
+ 	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
+ 		memset(&mbus_code, 0, sizeof(mbus_code));
+ 		mbus_code.index = i;
++		mbus_code.pad = IMAGE_PAD;
++		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ 
+ 		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
+ 				       NULL, &mbus_code);
+@@ -827,6 +917,9 @@ static int unicam_g_fmt_vid_cap(struct f
+ {
+ 	struct unicam_node *node = video_drvdata(file);
+ 
++	if (node->pad_id == METADATA_PAD)
++		return -EINVAL;
++
+ 	*f = node->v_fmt;
+ 
+ 	return 0;
+@@ -843,6 +936,9 @@ const struct unicam_fmt *get_first_suppo
+ 	for (j = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++j) {
+ 		memset(&mbus_code, 0, sizeof(mbus_code));
+ 		mbus_code.index = j;
++		mbus_code.pad = IMAGE_PAD;
++		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
++
+ 		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
+ 				       &mbus_code);
+ 		if (ret < 0) {
+@@ -873,12 +969,15 @@ static int unicam_try_fmt_vid_cap(struct
+ 	struct unicam_device *dev = node->dev;
+ 	struct v4l2_subdev_format sd_fmt = {
+ 		.which = V4L2_SUBDEV_FORMAT_TRY,
+-		.pad = 0
++		.pad = IMAGE_PAD
+ 	};
+ 	struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
+ 	const struct unicam_fmt *fmt;
+ 	int ret;
+ 
++	if (node->pad_id == METADATA_PAD)
++		return -EINVAL;
++
+ 	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
+ 	if (!fmt) {
+ 		/* Pixel format not supported by unicam. Choose the first
+@@ -983,7 +1082,7 @@ static int unicam_s_fmt_vid_cap(struct f
+ 
+ 	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, fmt->code);
+ 
+-	ret = __subdev_set_format(dev, &mbus_fmt);
++	ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id);
+ 	if (ret) {
+ 		unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
+ 			   __func__, ret);
+@@ -1014,6 +1113,106 @@ static int unicam_s_fmt_vid_cap(struct f
+ 	return 0;
+ }
+ 
++static int unicam_enum_fmt_meta_cap(struct file *file, void *priv,
++				    struct v4l2_fmtdesc *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_mbus_code_enum mbus_code;
++	const struct unicam_fmt *fmt = NULL;
++	int ret = 0;
++
++	if (node->pad_id != METADATA_PAD || f->index != 0)
++		return -EINVAL;
++
++	if (dev->sensor_embedded_data) {
++		memset(&mbus_code, 0, sizeof(mbus_code));
++		mbus_code.index = f->index;
++		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
++		mbus_code.pad = METADATA_PAD;
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
++				       &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx 0 returned %d - index invalid\n",
++				   ret);
++			return -EINVAL;
++		}
++	} else {
++		mbus_code.code = MEDIA_BUS_FMT_SENSOR_DATA;
++	}
++
++	fmt = find_format_by_code(mbus_code.code);
++	if (fmt)
++		f->pixelformat = fmt->fourcc;
++
++	return 0;
++}
++
++static int unicam_g_fmt_meta_cap(struct file *file, void *priv,
++				 struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++
++	if (node->pad_id != METADATA_PAD)
++		return -EINVAL;
++
++	*f = node->v_fmt;
++
++	return 0;
++}
++
++static int unicam_try_fmt_meta_cap(struct file *file, void *priv,
++				   struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++
++	if (node->pad_id != METADATA_PAD)
++		return -EINVAL;
++
++	*f = node->v_fmt;
++
++	return 0;
++}
++
++static int unicam_s_fmt_meta_cap(struct file *file, void *priv,
++				 struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_mbus_framefmt mbus_fmt = { 0 };
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	if (node->pad_id == IMAGE_PAD)
++		return -EINVAL;
++
++	if (dev->sensor_embedded_data) {
++		fmt = find_format_by_pix(dev, f->fmt.meta.dataformat);
++		if (!fmt) {
++			unicam_err(dev, "unknown format: V4L2 pix 0x%08x\n",
++				   f->fmt.meta.dataformat);
++			return -EINVAL;
++		}
++		mbus_fmt.code = fmt->code;
++		ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id);
++		if (ret) {
++			unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
++				   __func__, ret);
++			return ret;
++		}
++	}
++
++	*f = node->v_fmt;
++
++	unicam_dbg(3, dev, "%s size %d, V4L2 pix 0x%08x\n",
++		   __func__, node->v_fmt.fmt.meta.buffersize,
++		   node->v_fmt.fmt.meta.dataformat);
++
++	return 0;
++}
++
+ static int unicam_queue_setup(struct vb2_queue *vq,
+ 			      unsigned int *nbuffers,
+ 			      unsigned int *nplanes,
+@@ -1022,7 +1221,9 @@ static int unicam_queue_setup(struct vb2
+ {
+ 	struct unicam_node *node = vb2_get_drv_priv(vq);
+ 	struct unicam_device *dev = node->dev;
+-	unsigned int size = node->v_fmt.fmt.pix.sizeimage;
++	unsigned int size = node->pad_id == IMAGE_PAD ?
++				    node->v_fmt.fmt.pix.sizeimage :
++				    node->v_fmt.fmt.meta.buffersize;
+ 
+ 	if (vq->num_buffers + *nbuffers < 3)
+ 		*nbuffers = 3 - vq->num_buffers;
+@@ -1053,7 +1254,8 @@ static int unicam_buffer_prepare(struct
+ 	if (WARN_ON(!node->fmt))
+ 		return -EINVAL;
+ 
+-	size = node->v_fmt.fmt.pix.sizeimage;
++	size = node->pad_id == IMAGE_PAD ? node->v_fmt.fmt.pix.sizeimage :
++					   node->v_fmt.fmt.meta.buffersize;
+ 	if (vb2_plane_size(vb, 0) < size) {
+ 		unicam_err(dev, "data will not fit into plane (%lu < %lu)\n",
+ 			   vb2_plane_size(vb, 0), size);
+@@ -1082,12 +1284,12 @@ static void unicam_set_packing_config(st
+ 	int pack, unpack;
+ 	u32 val;
+ 
+-	if (dev->node[0].v_fmt.fmt.pix.pixelformat ==
+-	    dev->node[0].fmt->fourcc) {
++	if (dev->node[IMAGE_PAD].v_fmt.fmt.pix.pixelformat ==
++	    dev->node[IMAGE_PAD].fmt->fourcc) {
+ 		unpack = UNICAM_PUM_NONE;
+ 		pack = UNICAM_PPM_NONE;
+ 	} else {
+-		switch (dev->node[0].fmt->depth) {
++		switch (dev->node[IMAGE_PAD].fmt->depth) {
+ 		case 8:
+ 			unpack = UNICAM_PUM_UNPACK8;
+ 			break;
+@@ -1125,17 +1327,31 @@ static void unicam_cfg_image_id(struct u
+ 	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+ 		/* CSI2 mode */
+ 		reg_write(cfg, UNICAM_IDI0,
+-			(dev->virtual_channel << 6) | dev->node[0].fmt->csi_dt);
++			  (dev->virtual_channel << 6) |
++					      dev->node[IMAGE_PAD].fmt->csi_dt);
+ 	} else {
+ 		/* CCP2 mode */
+-		reg_write(cfg, UNICAM_IDI0, (0x80 | dev->node[0].fmt->csi_dt));
++		reg_write(cfg, UNICAM_IDI0,
++			  0x80 | dev->node[IMAGE_PAD].fmt->csi_dt);
+ 	}
+ }
+ 
+-static void unicam_start_rx(struct unicam_device *dev, unsigned long addr)
++static void unicam_enable_ed(struct unicam_device *dev)
++{
++	struct unicam_cfg *cfg = &dev->cfg;
++	u32 val = reg_read(cfg, UNICAM_DCS);
++
++	set_field(&val, 2, UNICAM_EDL_MASK);
++	/* Do not wrap at the end of the embedded data buffer */
++	set_field(&val, 0, UNICAM_DBOB);
++
++	reg_write(cfg, UNICAM_DCS, val);
++}
++
++static void unicam_start_rx(struct unicam_device *dev, dma_addr_t *addr)
+ {
+ 	struct unicam_cfg *cfg = &dev->cfg;
+-	int line_int_freq = dev->node[0].v_fmt.fmt.pix.height >> 2;
++	int line_int_freq = dev->node[IMAGE_PAD].v_fmt.fmt.pix.height >> 2;
+ 	unsigned int i;
+ 	u32 val;
+ 
+@@ -1284,27 +1500,31 @@ static void unicam_start_rx(struct unica
+ 	}
+ 
+ 	reg_write(&dev->cfg, UNICAM_IBLS,
+-		  dev->node[0].v_fmt.fmt.pix.bytesperline);
+-	unicam_wr_dma_addr(dev, addr);
++		  dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline);
++	unicam_wr_dma_addr(dev, addr[IMAGE_PAD], IMAGE_PAD);
+ 	unicam_set_packing_config(dev);
+ 	unicam_cfg_image_id(dev);
+ 
+-	/* Disabled embedded data */
+-	val = 0;
+-	set_field(&val, 0, UNICAM_EDL_MASK);
+-	reg_write(cfg, UNICAM_DCS, val);
+-
+ 	val = reg_read(cfg, UNICAM_MISC);
+ 	set_field(&val, 1, UNICAM_FL0);
+ 	set_field(&val, 1, UNICAM_FL1);
+ 	reg_write(cfg, UNICAM_MISC, val);
+ 
++	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) {
++		unicam_enable_ed(dev);
++		unicam_wr_dma_addr(dev, addr[METADATA_PAD], METADATA_PAD);
++	}
++
+ 	/* Enable peripheral */
+ 	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPE);
+ 
+ 	/* Load image pointers */
+ 	reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_LIP_MASK);
+ 
++	/* Load embedded data buffer pointers if needed */
++	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data)
++		reg_write_field(cfg, UNICAM_DCS, 1, UNICAM_LDP);
++
+ 	/*
+ 	 * Enable trigger only for the first frame to
+ 	 * sync correctly to the FS from the source.
+@@ -1339,6 +1559,9 @@ static void unicam_disable(struct unicam
+ 	/* Disable peripheral */
+ 	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE);
+ 
++	/* Clear ED setup */
++	reg_write(cfg, UNICAM_DCS, 0);
++
+ 	/* Disable all lane clocks */
+ 	clk_write(cfg, 0);
+ }
+@@ -1347,26 +1570,23 @@ static int unicam_start_streaming(struct
+ {
+ 	struct unicam_node *node = vb2_get_drv_priv(vq);
+ 	struct unicam_device *dev = node->dev;
+-	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+-	struct unicam_buffer *buf, *tmp;
+-	unsigned long addr = 0;
++	struct unicam_buffer *buf;
++	dma_addr_t buffer_addr[MAX_NODES] = { 0 };
++	int num_nodes_streaming;
+ 	unsigned long flags;
+-	int ret;
++	int ret, i;
+ 
+-	spin_lock_irqsave(&node->dma_queue_lock, flags);
+-	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+-	node->cur_frm = buf;
+-	node->next_frm = buf;
+-	list_del(&buf->list);
+-	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
++	node->streaming = 1;
++	if (!unicam_all_nodes_streaming(dev)) {
++		unicam_dbg(3, dev, "Not all nodes are streaming yet.");
++		return 0;
++	}
+ 
+-	addr = vb2_dma_contig_plane_dma_addr(&node->cur_frm->vb.vb2_buf, 0);
+ 	dev->sequence = 0;
+-
+ 	ret = unicam_runtime_get(dev);
+ 	if (ret < 0) {
+ 		unicam_dbg(3, dev, "unicam_runtime_get failed\n");
+-		goto err_release_buffers;
++		return ret;
+ 	}
+ 
+ 	dev->active_data_lanes = dev->max_data_lanes;
+@@ -1388,7 +1608,7 @@ static int unicam_start_streaming(struct
+ 			dev->active_data_lanes = dev->max_data_lanes;
+ 	}
+ 	if (dev->active_data_lanes > dev->max_data_lanes) {
+-		unicam_err(dev, "Device has requested %u data lanes, which is >%u configured in DT\n",
++		unicam_err(dev,	"Device has requested %u data lanes, which is >%u configured in DT\n",
+ 			   dev->active_data_lanes, dev->max_data_lanes);
+ 		ret = -EINVAL;
+ 		goto err_pm_put;
+@@ -1408,9 +1628,22 @@ static int unicam_start_streaming(struct
+ 		unicam_err(dev, "Failed to enable CSI clock: %d\n", ret);
+ 		goto err_pm_put;
+ 	}
+-	dev->streaming = 1;
+ 
+-	unicam_start_rx(dev, addr);
++	num_nodes_streaming = unicam_num_nodes_streaming(dev);
++	for (i = 0; i < num_nodes_streaming; i++) {
++		spin_lock_irqsave(&dev->node[i].dma_queue_lock, flags);
++		buf = list_entry(dev->node[i].dma_queue.active.next,
++				 struct unicam_buffer, list);
++		dev->node[i].cur_frm = buf;
++		dev->node[i].next_frm = buf;
++		list_del(&buf->list);
++		spin_unlock_irqrestore(&dev->node[i].dma_queue_lock, flags);
++		buffer_addr[i] =
++		vb2_dma_contig_plane_dma_addr(&dev->node[i].cur_frm->vb.vb2_buf,
++					      0);
++	}
++
++	unicam_start_rx(dev, buffer_addr);
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1);
+ 	if (ret < 0) {
+@@ -1421,21 +1654,11 @@ static int unicam_start_streaming(struct
+ 	return 0;
+ 
+ err_disable_unicam:
++	node->streaming = 0;
+ 	unicam_disable(dev);
+ 	clk_disable_unprepare(dev->clock);
+ err_pm_put:
+ 	unicam_runtime_put(dev);
+-err_release_buffers:
+-	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
+-		list_del(&buf->list);
+-		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
+-	}
+-	if (node->cur_frm != node->next_frm)
+-		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_QUEUED);
+-	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
+-	node->next_frm = NULL;
+-	node->cur_frm = NULL;
+ 
+ 	return ret;
+ }
+@@ -1448,33 +1671,47 @@ static void unicam_stop_streaming(struct
+ 	struct unicam_buffer *buf, *tmp;
+ 	unsigned long flags;
+ 
+-	if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0)
+-		unicam_err(dev, "stream off failed in subdev\n");
++	node->streaming = 0;
+ 
+-	unicam_disable(dev);
++	if (node->pad_id == IMAGE_PAD) {
++		/* Stop streaming the sensor and disable the peripheral.
++		 * We cannot continue streaming embedded data with the
++		 * image pad disabled.
++		 */
++		if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0)
++			unicam_err(dev, "stream off failed in subdev\n");
+ 
+-	/* Release all active buffers */
++		unicam_disable(dev);
++		clk_disable_unprepare(dev->clock);
++		unicam_runtime_put(dev);
++
++	} else if (node->pad_id == METADATA_PAD) {
++		/* Null out the embedded data buffer address so the HW does
++		 * not use it.  This is only really needed if the embedded data
++		 * pad is disabled before the image pad.  The 0x3 in the top two
++		 * bits signifies uncached accesses through the Videocore
++		 * memory controller.
++		 */
++		unicam_wr_dma_addr(dev, 0xc0000000, METADATA_PAD);
++	}
++
++	/* Clear all queued buffers for the node */
+ 	spin_lock_irqsave(&node->dma_queue_lock, flags);
+ 	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
+ 		list_del(&buf->list);
+ 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ 	}
+ 
+-	if (node->cur_frm == node->next_frm) {
+-		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_ERROR);
+-	} else {
++	if (node->cur_frm)
+ 		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
+ 				VB2_BUF_STATE_ERROR);
++	if (node->next_frm && node->cur_frm != node->next_frm)
+ 		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+ 				VB2_BUF_STATE_ERROR);
+-	}
++
+ 	node->cur_frm = NULL;
+ 	node->next_frm = NULL;
+ 	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+-
+-	clk_disable_unprepare(dev->clock);
+-	unicam_runtime_put(dev);
+ }
+ 
+ static int unicam_enum_input(struct file *file, void *priv,
+@@ -1595,17 +1832,23 @@ static int unicam_enum_framesizes(struct
+ 	struct v4l2_subdev_frame_size_enum fse;
+ 	int ret;
+ 
+-	/* check for valid format */
+-	fmt = find_format_by_pix(dev, fsize->pixel_format);
+-	if (!fmt) {
+-		unicam_dbg(3, dev, "Invalid pixel code: %x\n",
+-			   fsize->pixel_format);
+-		return -EINVAL;
++	if (node->pad_id == IMAGE_PAD) {
++		/* check for valid format */
++		fmt = find_format_by_pix(dev, fsize->pixel_format);
++		if (!fmt) {
++			unicam_dbg(3, dev, "Invalid pixel code: %x\n",
++				   fsize->pixel_format);
++			return -EINVAL;
++		}
++		fse.code = fmt->code;
++	} else {
++		/* This pad is for embedded data, so just set the format */
++		fse.code = MEDIA_BUS_FMT_SENSOR_DATA;
+ 	}
+ 
++	fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+ 	fse.index = fsize->index;
+-	fse.pad = 0;
+-	fse.code = fmt->code;
++	fse.pad = node->pad_id;
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_size, NULL, &fse);
+ 	if (ret)
+@@ -1782,7 +2025,7 @@ static void unicam_notify(struct v4l2_su
+ 
+ 	switch (notification) {
+ 	case V4L2_DEVICE_NOTIFY_EVENT:
+-		v4l2_event_queue(&dev->node[0].video_dev, arg);
++		v4l2_event_queue(&dev->node[IMAGE_PAD].video_dev, arg);
+ 		break;
+ 	default:
+ 		break;
+@@ -1826,6 +2069,7 @@ static int unicam_open(struct file *file
+ 		goto unlock;
+ 	}
+ 
++	node->open++;
+ 	ret = 0;
+ 
+ unlock:
+@@ -1850,6 +2094,10 @@ static int unicam_release(struct file *f
+ 	if (fh_singular)
+ 		v4l2_subdev_call(sd, core, s_power, 0);
+ 
++	if (node->streaming)
++		unicam_stop_streaming(&node->buffer_queue);
++
++	node->open--;
+ 	mutex_unlock(&node->lock);
+ 
+ 	return ret;
+@@ -1874,6 +2122,11 @@ static const struct v4l2_ioctl_ops unica
+ 	.vidioc_s_fmt_vid_cap		= unicam_s_fmt_vid_cap,
+ 	.vidioc_try_fmt_vid_cap		= unicam_try_fmt_vid_cap,
+ 
++	.vidioc_enum_fmt_meta_cap	= unicam_enum_fmt_meta_cap,
++	.vidioc_g_fmt_meta_cap		= unicam_g_fmt_meta_cap,
++	.vidioc_s_fmt_meta_cap		= unicam_s_fmt_meta_cap,
++	.vidioc_try_fmt_meta_cap	= unicam_try_fmt_meta_cap,
++
+ 	.vidioc_enum_input		= unicam_enum_input,
+ 	.vidioc_g_input			= unicam_g_input,
+ 	.vidioc_s_input			= unicam_s_input,
+@@ -1941,42 +2194,53 @@ static int register_node(struct unicam_d
+ 	const struct unicam_fmt *fmt;
+ 	int ret;
+ 
+-	ret = __subdev_get_format(unicam, &mbus_fmt, pad_id);
+-	if (ret) {
+-		unicam_err(unicam, "Failed to get_format - ret %d\n", ret);
+-		return ret;
+-	}
+-
+-	fmt = find_format_by_code(mbus_fmt.code);
+-	if (!fmt) {
+-		/* Find the first format that the sensor and unicam both
+-		 * support
+-		 */
+-		fmt = get_first_supported_format(unicam);
++	if (unicam->sensor_embedded_data || pad_id != METADATA_PAD) {
++		ret = __subdev_get_format(unicam, &mbus_fmt, pad_id);
++		if (ret) {
++			unicam_err(unicam, "Failed to get_format - ret %d\n",
++				   ret);
++			return ret;
++		}
+ 
+-		if (!fmt)
+-			/* No compatible formats */
+-			return -EINVAL;
++		fmt = find_format_by_code(mbus_fmt.code);
++		if (!fmt) {
++			/* Find the first format that the sensor and unicam both
++			 * support
++			 */
++			fmt = get_first_supported_format(unicam);
+ 
+-		mbus_fmt.code = fmt->code;
+-		ret = __subdev_set_format(unicam, &mbus_fmt);
+-		if (ret)
+-			return -EINVAL;
+-	}
+-	if (mbus_fmt.field != V4L2_FIELD_NONE) {
+-		/* Interlaced not supported - disable it now. */
+-		mbus_fmt.field = V4L2_FIELD_NONE;
+-		ret = __subdev_set_format(unicam, &mbus_fmt);
+-		if (ret)
+-			return -EINVAL;
++			if (!fmt)
++				/* No compatible formats */
++				return -EINVAL;
++
++			mbus_fmt.code = fmt->code;
++			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
++			if (ret)
++				return -EINVAL;
++		}
++		if (mbus_fmt.field != V4L2_FIELD_NONE) {
++			/* Interlaced not supported - disable it now. */
++			mbus_fmt.field = V4L2_FIELD_NONE;
++			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
++			if (ret)
++				return -EINVAL;
++		}
++	} else {
++		/* Fix this node format as embedded data. */
++		fmt = find_format_by_code(MEDIA_BUS_FMT_SENSOR_DATA);
+ 	}
+ 
++	node->dev = unicam;
+ 	node->pad_id = pad_id;
+ 	node->fmt = fmt;
+-	if (fmt->fourcc)
+-		node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+-	else
++	if (fmt->fourcc) {
++		if (fmt->fourcc != V4L2_META_FMT_SENSOR_DATA)
++			node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++		else
++			node->v_fmt.fmt.meta.dataformat = fmt->fourcc;
++	} else {
+ 		node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
++	}
+ 
+ 	/* Read current subdev format */
+ 	unicam_reset_format(node);
+@@ -2002,13 +2266,21 @@ static int register_node(struct unicam_d
+ 	spin_lock_init(&node->dma_queue_lock);
+ 	mutex_init(&node->lock);
+ 
+-	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
++	vdev = &node->video_dev;
++	if (pad_id == IMAGE_PAD) {
+ 		/* Add controls from the subdevice */
+ 		ret = v4l2_ctrl_add_handler(&node->ctrl_handler,
+ 					    unicam->sensor->ctrl_handler, NULL,
+ 					    true);
+ 		if (ret < 0)
+ 			return ret;
++
++		/*
++		 * If the sensor subdevice has any controls, associate the node
++		 *  with the ctrl handler to allow access from userland.
++		 */
++		if (!list_empty(&node->ctrl_handler.ctrls))
++			vdev->ctrl_handler = &node->ctrl_handler;
+ 	}
+ 
+ 	q = &node->buffer_queue;
+@@ -2031,8 +2303,6 @@ static int register_node(struct unicam_d
+ 
+ 	INIT_LIST_HEAD(&node->dma_queue.active);
+ 
+-	vdev = &node->video_dev;
+-	strlcpy(vdev->name, UNICAM_MODULE_NAME, sizeof(vdev->name));
+ 	vdev->release = video_device_release_empty;
+ 	vdev->fops = &unicam_fops;
+ 	vdev->ioctl_ops = &unicam_ioctl_ops;
+@@ -2040,24 +2310,28 @@ static int register_node(struct unicam_d
+ 	vdev->vfl_dir = VFL_DIR_RX;
+ 	vdev->queue = q;
+ 	vdev->lock = &node->lock;
+-	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+-			    V4L2_CAP_READWRITE;
+-	/* If the source has no controls then remove our ctrl handler. */
+-	if (list_empty(&node->ctrl_handler.ctrls))
+-		unicam->v4l2_dev.ctrl_handler = NULL;
++	vdev->device_caps = (pad_id == IMAGE_PAD) ?
++			    (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING) :
++			    (V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING);
++
++	/* Define the device names */
++	snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME,
++		 node->pad_id == IMAGE_PAD ? "image" : "embedded");
+ 
+-	node->dev = unicam;
+ 	video_set_drvdata(vdev, node);
+ 	vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
+ 
+-	if (!v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_STD);
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUMSTD);
+ 	}
+-	if (!v4l2_subdev_has_op(unicam->sensor, video, querystd))
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, querystd))
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERYSTD);
+-	if (!v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_EDID);
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_EDID);
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_DV_TIMINGS_CAP);
+@@ -2066,15 +2340,19 @@ static int register_node(struct unicam_d
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_DV_TIMINGS);
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERY_DV_TIMINGS);
+ 	}
+-	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
+ 		v4l2_disable_ioctl(&node->video_dev,
+ 				   VIDIOC_ENUM_FRAMEINTERVALS);
+-	if (!v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_PARM);
+-	if (!v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_PARM);
+ 
+-	if (!v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES);
+ 
+ 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+@@ -2082,27 +2360,29 @@ static int register_node(struct unicam_d
+ 		unicam_err(unicam, "Unable to register video device.\n");
+ 		return ret;
+ 	}
+-	node->registered = true;
++	node->registered = 1;
+ 
+-	ret = media_create_pad_link(&unicam->sensor->entity,
+-				    0, &node->video_dev.entity, 0,
+-				    MEDIA_LNK_FL_ENABLED |
+-				    MEDIA_LNK_FL_IMMUTABLE);
+-	if (ret)
+-		unicam_err(unicam, "Unable to create pad links.\n");
++	if (unicam->sensor_embedded_data) {
++		ret = media_create_pad_link(&unicam->sensor->entity, pad_id,
++					    &node->video_dev.entity, 0,
++					    MEDIA_LNK_FL_ENABLED |
++					    MEDIA_LNK_FL_IMMUTABLE);
++		if (ret)
++			unicam_err(unicam, "Unable to create pad links.\n");
++	}
+ 
+ 	return ret;
+ }
+ 
+ static void unregister_nodes(struct unicam_device *unicam)
+ {
+-	if (unicam->node[0].registered) {
+-		video_unregister_device(&unicam->node[0].video_dev);
+-		unicam->node[0].registered = false;
+-	}
+-	if (unicam->node[1].registered) {
+-		video_unregister_device(&unicam->node[1].video_dev);
+-		unicam->node[1].registered = false;
++	if (unicam->node[IMAGE_PAD].registered) {
++		video_unregister_device(&unicam->node[IMAGE_PAD].video_dev);
++		unicam->node[IMAGE_PAD].registered = 0;
++	}
++	if (unicam->node[METADATA_PAD].registered) {
++		video_unregister_device(&unicam->node[METADATA_PAD].video_dev);
++		unicam->node[METADATA_PAD].registered = 0;
+ 	}
+ }
+ 
+@@ -2118,20 +2398,20 @@ static int unicam_probe_complete(struct
+ 	if (!unicam->sensor_config)
+ 		return -ENOMEM;
+ 
+-	ret = register_node(unicam, &unicam->node[0],
+-			    V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
++	unicam->sensor_embedded_data = (unicam->sensor->entity.num_pads >= 2);
++
++	ret = register_node(unicam, &unicam->node[IMAGE_PAD],
++			    V4L2_BUF_TYPE_VIDEO_CAPTURE, IMAGE_PAD);
+ 	if (ret) {
+ 		unicam_err(unicam, "Unable to register subdev node 0.\n");
+ 		goto unregister;
+ 	}
+-	if (unicam->sensor->entity.num_pads >= 2) {
+-		ret = register_node(unicam, &unicam->node[1],
+-				    V4L2_BUF_TYPE_META_CAPTURE, 1);
+-		if (ret) {
+-			unicam_err(unicam,
+-				   "Unable to register subdev node 1.\n");
+-			goto unregister;
+-		}
++
++	ret = register_node(unicam, &unicam->node[METADATA_PAD],
++			    V4L2_BUF_TYPE_META_CAPTURE, METADATA_PAD);
++	if (ret) {
++		unicam_err(unicam, "Unable to register subdev node 1.\n");
++		goto unregister;
+ 	}
+ 
+ 	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
+@@ -2355,8 +2635,10 @@ static int unicam_probe(struct platform_
+ 		 pdev->dev.driver->name, dev_name(&pdev->dev));
+ 	unicam->mdev.hw_revision = 1;
+ 
+-	media_entity_pads_init(&unicam->node[0].video_dev.entity, 1,
+-			       &unicam->node[0].pad);
++	media_entity_pads_init(&unicam->node[IMAGE_PAD].video_dev.entity, 1,
++			       &unicam->node[IMAGE_PAD].pad);
++	media_entity_pads_init(&unicam->node[METADATA_PAD].video_dev.entity, 1,
++			       &unicam->node[METADATA_PAD].pad);
+ 	media_device_init(&unicam->mdev);
+ 
+ 	unicam->v4l2_dev.mdev = &unicam->mdev;
+@@ -2376,11 +2658,10 @@ static int unicam_probe(struct platform_
+ 	}
+ 
+ 	/* Reserve space for the controls */
+-	hdl = &unicam->node[0].ctrl_handler;
++	hdl = &unicam->node[IMAGE_PAD].ctrl_handler;
+ 	ret = v4l2_ctrl_handler_init(hdl, 16);
+ 	if (ret < 0)
+ 		goto media_unregister;
+-	unicam->v4l2_dev.ctrl_handler = hdl;
+ 
+ 	/* set the driver data in platform device */
+ 	platform_set_drvdata(pdev, unicam);
+@@ -2417,7 +2698,7 @@ static int unicam_remove(struct platform
+ 	pm_runtime_disable(&pdev->dev);
+ 
+ 	v4l2_async_notifier_unregister(&unicam->notifier);
+-	v4l2_ctrl_handler_free(&unicam->node[0].ctrl_handler);
++	v4l2_ctrl_handler_free(&unicam->node[IMAGE_PAD].ctrl_handler);
+ 	v4l2_device_unregister(&unicam->v4l2_dev);
+ 	unregister_nodes(unicam);
+ 	if (unicam->sensor_config)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0214-media-bcm2835-unicam-Use-dummy-buffer-if-none-have-b.patch b/target/linux/bcm27xx/patches-5.10/950-0214-media-bcm2835-unicam-Use-dummy-buffer-if-none-have-b.patch
new file mode 100644
index 0000000000..811fa9f08c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0214-media-bcm2835-unicam-Use-dummy-buffer-if-none-have-b.patch
@@ -0,0 +1,308 @@
+From 43f17e232abec4960a2edd6f245d6e1e0058a858 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 2 Apr 2020 16:08:51 +0100
+Subject: [PATCH] media: bcm2835-unicam: Use dummy buffer if none have
+ been queued
+
+If no buffer has been queued by a userland application, we use an
+internal dummy buffer for the hardware to spin in. This will allow
+the driver to release the existing userland buffer back to the
+application for processing.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 160 ++++++++++++------
+ 1 file changed, 110 insertions(+), 50 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -47,6 +47,7 @@
+ #include <linux/clk.h>
+ #include <linux/delay.h>
+ #include <linux/device.h>
++#include <linux/dma-mapping.h>
+ #include <linux/err.h>
+ #include <linux/init.h>
+ #include <linux/interrupt.h>
+@@ -112,6 +113,12 @@ MODULE_PARM_DESC(debug, "Debug level 0-3
+ /* Default size of the embedded buffer */
+ #define UNICAM_EMBEDDED_SIZE	8192
+ 
++/*
++ * Size of the dummy buffer. Can be any size really, but the DMA
++ * allocation works in units of page sizes.
++ */
++#define DUMMY_BUF_SIZE	(PAGE_SIZE)
++
+ enum pad_types {
+ 	IMAGE_PAD,
+ 	METADATA_PAD,
+@@ -390,6 +397,12 @@ struct unicam_node {
+ 	struct media_pad pad;
+ 	struct v4l2_ctrl_handler ctrl_handler;
+ 	unsigned int embedded_lines;
++	/*
++	 * Dummy buffer intended to be used by unicam
++	 * if we have no other queued buffers to swap to.
++	 */
++	void *dummy_buf_cpu_addr;
++	dma_addr_t dummy_buf_dma_addr;
+ };
+ 
+ struct unicam_device {
+@@ -661,27 +674,24 @@ static int unicam_reset_format(struct un
+ 	return 0;
+ }
+ 
+-static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr,
+-			       int pad_id)
++static void unicam_wr_dma_addr(struct unicam_cfg *cfg, dma_addr_t dmaaddr,
++			       unsigned int buffer_size, int pad_id)
+ {
+-	dma_addr_t endaddr;
++	dma_addr_t endaddr = dmaaddr + buffer_size;
+ 
+ 	/*
+-	 * dmaaddr should be a 32-bit address with the top two bits set to 0x3
+-	 * to signify uncached access through the Videocore memory controller.
++	 * dmaaddr and endaddr should be a 32-bit address with the top two bits
++	 * set to 0x3 to signify uncached access through the Videocore memory
++	 * controller.
+ 	 */
+-	BUG_ON((dmaaddr >> 30) != 0x3);
++	BUG_ON((dmaaddr >> 30) != 0x3 && (endaddr >> 30) != 0x3);
+ 
+ 	if (pad_id == IMAGE_PAD) {
+-		endaddr = dmaaddr +
+-			  dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage;
+-		reg_write(&dev->cfg, UNICAM_IBSA0, dmaaddr);
+-		reg_write(&dev->cfg, UNICAM_IBEA0, endaddr);
++		reg_write(cfg, UNICAM_IBSA0, dmaaddr);
++		reg_write(cfg, UNICAM_IBEA0, endaddr);
+ 	} else {
+-		endaddr = dmaaddr +
+-			  dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
+-		reg_write(&dev->cfg, UNICAM_DBSA0, dmaaddr);
+-		reg_write(&dev->cfg, UNICAM_DBEA0, endaddr);
++		reg_write(cfg, UNICAM_DBSA0, dmaaddr);
++		reg_write(cfg, UNICAM_DBEA0, endaddr);
+ 	}
+ }
+ 
+@@ -704,6 +714,7 @@ static inline void unicam_schedule_next_
+ 	struct unicam_device *dev = node->dev;
+ 	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+ 	struct unicam_buffer *buf;
++	unsigned int size;
+ 	dma_addr_t addr;
+ 
+ 	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+@@ -711,7 +722,23 @@ static inline void unicam_schedule_next_
+ 	list_del(&buf->list);
+ 
+ 	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
+-	unicam_wr_dma_addr(dev, addr, node->pad_id);
++	size = (node->pad_id == IMAGE_PAD) ?
++			dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage :
++			dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
++
++	unicam_wr_dma_addr(&dev->cfg, addr, size, node->pad_id);
++}
++
++static inline void unicam_schedule_dummy_buffer(struct unicam_node *node)
++{
++	struct unicam_device *dev = node->dev;
++	dma_addr_t addr = node->dummy_buf_dma_addr;
++
++	unicam_dbg(3, dev, "Scheduling dummy buffer for node %d\n",
++		   node->pad_id);
++
++	unicam_wr_dma_addr(&dev->cfg, addr, DUMMY_BUF_SIZE, node->pad_id);
++	node->next_frm = NULL;
+ }
+ 
+ static inline void unicam_process_buffer_complete(struct unicam_node *node,
+@@ -721,7 +748,6 @@ static inline void unicam_process_buffer
+ 	node->cur_frm->vb.sequence = sequence;
+ 
+ 	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+-	node->cur_frm = node->next_frm;
+ }
+ 
+ static int unicam_num_nodes_streaming(struct unicam_device *dev)
+@@ -788,6 +814,28 @@ static irqreturn_t unicam_isr(int irq, v
+ 	if (!(sta && (UNICAM_IS | UNICAM_PI0)))
+ 		return IRQ_HANDLED;
+ 
++	/*
++	 * We must run the frame end handler first. If we have a valid next_frm
++	 * and we get a simultaneout FE + FS interrupt, running the FS handler
++	 * first would null out the next_frm ptr and we would have lost the
++	 * buffer forever.
++	 */
++	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
++		/*
++		 * Ensure we have swapped buffers already as we can't
++		 * stop the peripheral. If no buffer is available, use a
++		 * dummy buffer to dump out frames until we get a new buffer
++		 * to use.
++		 */
++		for (i = 0; i < num_nodes_streaming; i++) {
++			if (unicam->node[i].cur_frm)
++				unicam_process_buffer_complete(&unicam->node[i],
++							       sequence);
++			unicam->node[i].cur_frm = unicam->node[i].next_frm;
++		}
++		unicam->sequence++;
++	}
++
+ 	if (ista & UNICAM_FSI) {
+ 		/*
+ 		 * Timestamp is to be when the first data byte was captured,
+@@ -798,24 +846,16 @@ static irqreturn_t unicam_isr(int irq, v
+ 			if (unicam->node[i].cur_frm)
+ 				unicam->node[i].cur_frm->vb.vb2_buf.timestamp =
+ 								ts;
++			/*
++			 * Set the next frame output to go to a dummy frame
++			 * if we have not managed to obtain another frame
++			 * from the queue.
++			 */
++			unicam_schedule_dummy_buffer(&unicam->node[i]);
+ 		}
+ 	}
+-	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
+-		/*
+-		 * Ensure we have swapped buffers already as we can't
+-		 * stop the peripheral. Overwrite the frame we've just
+-		 * captured instead.
+-		 */
+-		for (i = 0; i < num_nodes_streaming; i++) {
+-			if (unicam->node[i].cur_frm &&
+-			    unicam->node[i].cur_frm != unicam->node[i].next_frm)
+-				unicam_process_buffer_complete(&unicam->node[i],
+-							       sequence);
+-		}
+-		unicam->sequence++;
+-	}
+-
+-	/* Cannot swap buffer at frame end, there may be a race condition
++	/*
++	 * Cannot swap buffer at frame end, there may be a race condition
+ 	 * where the HW does not actually swap it if the new frame has
+ 	 * already started.
+ 	 */
+@@ -823,7 +863,7 @@ static irqreturn_t unicam_isr(int irq, v
+ 		for (i = 0; i < num_nodes_streaming; i++) {
+ 			spin_lock(&unicam->node[i].dma_queue_lock);
+ 			if (!list_empty(&unicam->node[i].dma_queue.active) &&
+-			    unicam->node[i].cur_frm == unicam->node[i].next_frm)
++			    !unicam->node[i].next_frm)
+ 				unicam_schedule_next_buffer(&unicam->node[i]);
+ 			spin_unlock(&unicam->node[i].dma_queue_lock);
+ 		}
+@@ -1352,7 +1392,7 @@ static void unicam_start_rx(struct unica
+ {
+ 	struct unicam_cfg *cfg = &dev->cfg;
+ 	int line_int_freq = dev->node[IMAGE_PAD].v_fmt.fmt.pix.height >> 2;
+-	unsigned int i;
++	unsigned int size, i;
+ 	u32 val;
+ 
+ 	if (line_int_freq < 128)
+@@ -1413,7 +1453,7 @@ static void unicam_start_rx(struct unica
+ 	reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_DDL);
+ 
+ 	/* Always start in trigger frame capture mode (UNICAM_FCM set) */
+-	val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM;
++	val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM | UNICAM_IBOB;
+ 	set_field(&val,  line_int_freq, UNICAM_LCIE_MASK);
+ 	reg_write(cfg, UNICAM_ICTL, val);
+ 	reg_write(cfg, UNICAM_STA, UNICAM_STA_MASK_ALL);
+@@ -1501,7 +1541,8 @@ static void unicam_start_rx(struct unica
+ 
+ 	reg_write(&dev->cfg, UNICAM_IBLS,
+ 		  dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline);
+-	unicam_wr_dma_addr(dev, addr[IMAGE_PAD], IMAGE_PAD);
++	size = dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage;
++	unicam_wr_dma_addr(&dev->cfg, addr[IMAGE_PAD], size, IMAGE_PAD);
+ 	unicam_set_packing_config(dev);
+ 	unicam_cfg_image_id(dev);
+ 
+@@ -1511,8 +1552,10 @@ static void unicam_start_rx(struct unica
+ 	reg_write(cfg, UNICAM_MISC, val);
+ 
+ 	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) {
++		size = dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
+ 		unicam_enable_ed(dev);
+-		unicam_wr_dma_addr(dev, addr[METADATA_PAD], METADATA_PAD);
++		unicam_wr_dma_addr(&dev->cfg, addr[METADATA_PAD], size,
++				   METADATA_PAD);
+ 	}
+ 
+ 	/* Enable peripheral */
+@@ -1686,13 +1729,14 @@ static void unicam_stop_streaming(struct
+ 		unicam_runtime_put(dev);
+ 
+ 	} else if (node->pad_id == METADATA_PAD) {
+-		/* Null out the embedded data buffer address so the HW does
+-		 * not use it.  This is only really needed if the embedded data
+-		 * pad is disabled before the image pad.  The 0x3 in the top two
+-		 * bits signifies uncached accesses through the Videocore
+-		 * memory controller.
++		/* Allow the hardware to spin in the dummy buffer.
++		 * This is only really needed if the embedded data pad is
++		 * disabled before the image pad.  The 0x3 in the top two bits
++		 * signifies uncached accesses through the Videocore memory
++		 * controller.
+ 		 */
+-		unicam_wr_dma_addr(dev, 0xc0000000, METADATA_PAD);
++		unicam_wr_dma_addr(&dev->cfg, node->dummy_buf_dma_addr,
++				   DUMMY_BUF_SIZE, METADATA_PAD);
+ 	}
+ 
+ 	/* Clear all queued buffers for the node */
+@@ -2321,6 +2365,15 @@ static int register_node(struct unicam_d
+ 	video_set_drvdata(vdev, node);
+ 	vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
+ 
++	node->dummy_buf_cpu_addr = dma_alloc_coherent(&unicam->pdev->dev,
++						      DUMMY_BUF_SIZE,
++						      &node->dummy_buf_dma_addr,
++						      GFP_ATOMIC);
++	if (!node->dummy_buf_cpu_addr) {
++		unicam_err(unicam, "Unable to allocate dummy buffer.\n");
++		return -ENOMEM;
++	}
++
+ 	if (node->pad_id == METADATA_PAD ||
+ 	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
+@@ -2376,13 +2429,20 @@ static int register_node(struct unicam_d
+ 
+ static void unregister_nodes(struct unicam_device *unicam)
+ {
+-	if (unicam->node[IMAGE_PAD].registered) {
+-		video_unregister_device(&unicam->node[IMAGE_PAD].video_dev);
+-		unicam->node[IMAGE_PAD].registered = 0;
+-	}
+-	if (unicam->node[METADATA_PAD].registered) {
+-		video_unregister_device(&unicam->node[METADATA_PAD].video_dev);
+-		unicam->node[METADATA_PAD].registered = 0;
++	struct unicam_node *node;
++	int i;
++
++	for (i = 0; i < MAX_NODES; i++) {
++		node = &unicam->node[i];
++		if (node->dummy_buf_cpu_addr) {
++			dma_free_coherent(&unicam->pdev->dev, DUMMY_BUF_SIZE,
++					  node->dummy_buf_cpu_addr,
++					  node->dummy_buf_dma_addr);
++		}
++		if (node->registered) {
++			video_unregister_device(&node->video_dev);
++			node->registered = 0;
++		}
+ 	}
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0215-media-bcm2835-unicam-Disable-event-related-ioctls-on.patch b/target/linux/bcm27xx/patches-5.10/950-0215-media-bcm2835-unicam-Disable-event-related-ioctls-on.patch
new file mode 100644
index 0000000000..21b1f39280
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0215-media-bcm2835-unicam-Disable-event-related-ioctls-on.patch
@@ -0,0 +1,31 @@
+From 62bd5b64e0213e0b2cf0d0e65e7b0a30399b5e36 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Date: Tue, 24 Mar 2020 23:13:02 +0200
+Subject: [PATCH] media: bcm2835-unicam: Disable event-related ioctls
+ on metadata node
+
+The unicam driver supports both the SOURCE_CHANGE and CTRL events. Both
+events are only generated on the image video node, so the event-related
+ioctls are useless on the medatada node. Disable them.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
+Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2374,6 +2374,11 @@ static int register_node(struct unicam_d
+ 		return -ENOMEM;
+ 	}
+ 
++	if (node->pad_id == METADATA_PAD) {
++		v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
++		v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
++		v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
++	}
+ 	if (node->pad_id == METADATA_PAD ||
+ 	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch b/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch
new file mode 100644
index 0000000000..40fe0a9750
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0216-media-bcm2835-unicam-Add-support-for-the-FRAME_SYNC-.patch
@@ -0,0 +1,55 @@
+From 6195ecf605368d29a9ef684da387a6929845f925 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Date: Tue, 24 Mar 2020 23:13:02 +0200
+Subject: [PATCH] media: bcm2835-unicam: Add support for the FRAME_SYNC
+ event
+
+The FRAME_SYNC event is useful for userspace image processing algorithms
+to program the camera sensor as early as possible after frame start.
+Support it.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
+Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
+Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -772,6 +772,16 @@ static int unicam_all_nodes_disabled(str
+ 	       !dev->node[METADATA_PAD].streaming;
+ }
+ 
++static void unicam_queue_event_sof(struct unicam_device *unicam)
++{
++	struct v4l2_event event = {
++		.type = V4L2_EVENT_FRAME_SYNC,
++		.u.frame_sync.frame_sequence = unicam->sequence,
++	};
++
++	v4l2_event_queue(&unicam->node[IMAGE_PAD].video_dev, &event);
++}
++
+ /*
+  * unicam_isr : ISR handler for unicam capture
+  * @irq: irq number
+@@ -853,6 +863,8 @@ static irqreturn_t unicam_isr(int irq, v
+ 			 */
+ 			unicam_schedule_dummy_buffer(&unicam->node[i]);
+ 		}
++
++		unicam_queue_event_sof(unicam);
+ 	}
+ 	/*
+ 	 * Cannot swap buffer at frame end, there may be a race condition
+@@ -2022,6 +2034,8 @@ static int unicam_subscribe_event(struct
+ 				  const struct v4l2_event_subscription *sub)
+ {
+ 	switch (sub->type) {
++	case V4L2_EVENT_FRAME_SYNC:
++		return v4l2_event_subscribe(fh, sub, 2, NULL);
+ 	case V4L2_EVENT_SOURCE_CHANGE:
+ 		return v4l2_event_subscribe(fh, sub, 4, NULL);
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0217-media-imx219-Advertise-embedded-data-node-on-media-p.patch b/target/linux/bcm27xx/patches-5.10/950-0217-media-imx219-Advertise-embedded-data-node-on-media-p.patch
new file mode 100644
index 0000000000..d8055af5b2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0217-media-imx219-Advertise-embedded-data-node-on-media-p.patch
@@ -0,0 +1,336 @@
+From fde54dfff6652b153af9fab8114b27510b0fe8b4 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 12 Mar 2020 14:09:38 +0000
+Subject: [PATCH] media: imx219: Advertise embedded data node on media
+ pad 1
+
+This commit updates the imx219 driver to adverise support for embedded
+data streams.  This can then be used by the bcm2835-unicam driver, which
+has recently been updated to expose the embedded data stream to
+userland.
+
+The imx219 sensor subdevice overloads the media pad to differentiate
+between image stream (pad 0) and embedded data stream (pad 1) when
+performing the v4l2_subdev_pad_ops functions.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx219.c | 226 +++++++++++++++++++++++++------------
+ 1 file changed, 155 insertions(+), 71 deletions(-)
+
+--- a/drivers/media/i2c/imx219.c
++++ b/drivers/media/i2c/imx219.c
+@@ -118,6 +118,16 @@
+ #define IMX219_PIXEL_ARRAY_WIDTH	3280U
+ #define IMX219_PIXEL_ARRAY_HEIGHT	2464U
+ 
++/* Embedded metadata stream structure */
++#define IMX219_EMBEDDED_LINE_WIDTH 16384
++#define IMX219_NUM_EMBEDDED_LINES 1
++
++enum pad_types {
++	IMAGE_PAD,
++	METADATA_PAD,
++	NUM_PADS
++};
++
+ struct imx219_reg {
+ 	u16 address;
+ 	u8 val;
+@@ -536,7 +546,7 @@ static const struct imx219_mode supporte
+ 
+ struct imx219 {
+ 	struct v4l2_subdev sd;
+-	struct media_pad pad;
++	struct media_pad pad[NUM_PADS];
+ 
+ 	struct v4l2_mbus_framefmt fmt;
+ 
+@@ -685,18 +695,26 @@ static void imx219_set_default_format(st
+ static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+ {
+ 	struct imx219 *imx219 = to_imx219(sd);
+-	struct v4l2_mbus_framefmt *try_fmt =
+-		v4l2_subdev_get_try_format(sd, fh->pad, 0);
++	struct v4l2_mbus_framefmt *try_fmt_img =
++		v4l2_subdev_get_try_format(sd, fh->pad, IMAGE_PAD);
++	struct v4l2_mbus_framefmt *try_fmt_meta =
++		v4l2_subdev_get_try_format(sd, fh->pad, METADATA_PAD);
+ 	struct v4l2_rect *try_crop;
+ 
+ 	mutex_lock(&imx219->mutex);
+ 
+-	/* Initialize try_fmt */
+-	try_fmt->width = supported_modes[0].width;
+-	try_fmt->height = supported_modes[0].height;
+-	try_fmt->code = imx219_get_format_code(imx219,
+-					       MEDIA_BUS_FMT_SRGGB10_1X10);
+-	try_fmt->field = V4L2_FIELD_NONE;
++	/* Initialize try_fmt for the image pad */
++	try_fmt_img->width = supported_modes[0].width;
++	try_fmt_img->height = supported_modes[0].height;
++	try_fmt_img->code = imx219_get_format_code(imx219,
++						   MEDIA_BUS_FMT_SRGGB10_1X10);
++	try_fmt_img->field = V4L2_FIELD_NONE;
++
++	/* Initialize try_fmt for the embedded metadata pad */
++	try_fmt_meta->width = IMX219_EMBEDDED_LINE_WIDTH;
++	try_fmt_meta->height = IMX219_NUM_EMBEDDED_LINES;
++	try_fmt_meta->code = MEDIA_BUS_FMT_SENSOR_DATA;
++	try_fmt_meta->field = V4L2_FIELD_NONE;
+ 
+ 	/* Initialize try_crop rectangle. */
+ 	try_crop = v4l2_subdev_get_try_crop(sd, fh->pad, 0);
+@@ -805,10 +823,21 @@ static int imx219_enum_mbus_code(struct
+ {
+ 	struct imx219 *imx219 = to_imx219(sd);
+ 
+-	if (code->index >= (ARRAY_SIZE(codes) / 4))
++	if (code->pad >= NUM_PADS)
+ 		return -EINVAL;
+ 
+-	code->code = imx219_get_format_code(imx219, codes[code->index * 4]);
++	if (code->pad == IMAGE_PAD) {
++		if (code->index >= (ARRAY_SIZE(codes) / 4))
++			return -EINVAL;
++
++		code->code = imx219_get_format_code(imx219,
++						    codes[code->index * 4]);
++	} else {
++		if (code->index > 0)
++			return -EINVAL;
++
++		code->code = MEDIA_BUS_FMT_SENSOR_DATA;
++	}
+ 
+ 	return 0;
+ }
+@@ -819,16 +848,29 @@ static int imx219_enum_frame_size(struct
+ {
+ 	struct imx219 *imx219 = to_imx219(sd);
+ 
+-	if (fse->index >= ARRAY_SIZE(supported_modes))
++	if (fse->pad >= NUM_PADS)
+ 		return -EINVAL;
+ 
+-	if (fse->code != imx219_get_format_code(imx219, fse->code))
+-		return -EINVAL;
++	if (fse->pad == IMAGE_PAD) {
++		if (fse->index >= ARRAY_SIZE(supported_modes))
++			return -EINVAL;
++
++		if (fse->code != imx219_get_format_code(imx219, fse->code))
++			return -EINVAL;
++
++		fse->min_width = supported_modes[fse->index].width;
++		fse->max_width = fse->min_width;
++		fse->min_height = supported_modes[fse->index].height;
++		fse->max_height = fse->min_height;
++	} else {
++		if (fse->code != MEDIA_BUS_FMT_SENSOR_DATA || fse->index > 0)
++			return -EINVAL;
+ 
+-	fse->min_width = supported_modes[fse->index].width;
+-	fse->max_width = fse->min_width;
+-	fse->min_height = supported_modes[fse->index].height;
+-	fse->max_height = fse->min_height;
++		fse->min_width = IMX219_EMBEDDED_LINE_WIDTH;
++		fse->max_width = fse->min_width;
++		fse->min_height = IMX219_NUM_EMBEDDED_LINES;
++		fse->max_height = fse->min_height;
++	}
+ 
+ 	return 0;
+ }
+@@ -843,9 +885,9 @@ static void imx219_reset_colorspace(stru
+ 	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
+ }
+ 
+-static void imx219_update_pad_format(struct imx219 *imx219,
+-				     const struct imx219_mode *mode,
+-				     struct v4l2_subdev_format *fmt)
++static void imx219_update_image_pad_format(struct imx219 *imx219,
++					   const struct imx219_mode *mode,
++					   struct v4l2_subdev_format *fmt)
+ {
+ 	fmt->format.width = mode->width;
+ 	fmt->format.height = mode->height;
+@@ -853,20 +895,38 @@ static void imx219_update_pad_format(str
+ 	imx219_reset_colorspace(&fmt->format);
+ }
+ 
++static void imx219_update_metadata_pad_format(struct v4l2_subdev_format *fmt)
++{
++	fmt->format.width = IMX219_EMBEDDED_LINE_WIDTH;
++	fmt->format.height = IMX219_NUM_EMBEDDED_LINES;
++	fmt->format.code = MEDIA_BUS_FMT_SENSOR_DATA;
++	fmt->format.field = V4L2_FIELD_NONE;
++}
++
+ static int __imx219_get_pad_format(struct imx219 *imx219,
+ 				   struct v4l2_subdev_pad_config *cfg,
+ 				   struct v4l2_subdev_format *fmt)
+ {
++	if (fmt->pad >= NUM_PADS)
++		return -EINVAL;
++
+ 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ 		struct v4l2_mbus_framefmt *try_fmt =
+ 			v4l2_subdev_get_try_format(&imx219->sd, cfg, fmt->pad);
+ 		/* update the code which could change due to vflip or hflip: */
+-		try_fmt->code = imx219_get_format_code(imx219, try_fmt->code);
++		try_fmt->code = fmt->pad == IMAGE_PAD ?
++				imx219_get_format_code(imx219, try_fmt->code) :
++				MEDIA_BUS_FMT_SENSOR_DATA;
+ 		fmt->format = *try_fmt;
+ 	} else {
+-		imx219_update_pad_format(imx219, imx219->mode, fmt);
+-		fmt->format.code = imx219_get_format_code(imx219,
+-							  imx219->fmt.code);
++		if (fmt->pad == IMAGE_PAD) {
++			imx219_update_image_pad_format(imx219, imx219->mode,
++						       fmt);
++			fmt->format.code = imx219_get_format_code(imx219,
++							      imx219->fmt.code);
++		} else {
++			imx219_update_metadata_pad_format(fmt);
++		}
+ 	}
+ 
+ 	return 0;
+@@ -896,51 +956,74 @@ static int imx219_set_pad_format(struct
+ 	int exposure_max, exposure_def, hblank;
+ 	unsigned int i;
+ 
+-	mutex_lock(&imx219->mutex);
+-
+-	for (i = 0; i < ARRAY_SIZE(codes); i++)
+-		if (codes[i] == fmt->format.code)
+-			break;
+-	if (i >= ARRAY_SIZE(codes))
+-		i = 0;
++	if (fmt->pad >= NUM_PADS)
++		return -EINVAL;
+ 
+-	/* Bayer order varies with flips */
+-	fmt->format.code = imx219_get_format_code(imx219, codes[i]);
++	mutex_lock(&imx219->mutex);
+ 
+-	mode = v4l2_find_nearest_size(supported_modes,
+-				      ARRAY_SIZE(supported_modes),
+-				      width, height,
+-				      fmt->format.width, fmt->format.height);
+-	imx219_update_pad_format(imx219, mode, fmt);
+-	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+-		framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+-		*framefmt = fmt->format;
+-	} else if (imx219->mode != mode ||
+-		   imx219->fmt.code != fmt->format.code) {
+-		imx219->fmt = fmt->format;
+-		imx219->mode = mode;
+-		/* Update limits and set FPS to default */
+-		__v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN,
+-					 IMX219_VTS_MAX - mode->height, 1,
+-					 mode->vts_def - mode->height);
+-		__v4l2_ctrl_s_ctrl(imx219->vblank,
+-				   mode->vts_def - mode->height);
+-		/* Update max exposure while meeting expected vblanking */
+-		exposure_max = mode->vts_def - 4;
+-		exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
+-			exposure_max : IMX219_EXPOSURE_DEFAULT;
+-		__v4l2_ctrl_modify_range(imx219->exposure,
+-					 imx219->exposure->minimum,
+-					 exposure_max, imx219->exposure->step,
+-					 exposure_def);
+-		/*
+-		 * Currently PPL is fixed to IMX219_PPL_DEFAULT, so hblank
+-		 * depends on mode->width only, and is not changeble in any
+-		 * way other than changing the mode.
+-		 */
+-		hblank = IMX219_PPL_DEFAULT - mode->width;
+-		__v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank, 1,
+-					 hblank);
++	if (fmt->pad == IMAGE_PAD) {
++		for (i = 0; i < ARRAY_SIZE(codes); i++)
++			if (codes[i] == fmt->format.code)
++				break;
++		if (i >= ARRAY_SIZE(codes))
++			i = 0;
++
++		/* Bayer order varies with flips */
++		fmt->format.code = imx219_get_format_code(imx219, codes[i]);
++
++		mode = v4l2_find_nearest_size(supported_modes,
++					      ARRAY_SIZE(supported_modes),
++					      width, height,
++					      fmt->format.width,
++					      fmt->format.height);
++		imx219_update_image_pad_format(imx219, mode, fmt);
++		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++			framefmt = v4l2_subdev_get_try_format(sd, cfg,
++							      fmt->pad);
++			*framefmt = fmt->format;
++		} else if (imx219->mode != mode ||
++			imx219->fmt.code != fmt->format.code) {
++			imx219->fmt = fmt->format;
++			imx219->mode = mode;
++			/* Update limits and set FPS to default */
++			__v4l2_ctrl_modify_range(imx219->vblank,
++						 IMX219_VBLANK_MIN,
++						 IMX219_VTS_MAX - mode->height,
++						 1,
++						 mode->vts_def - mode->height);
++			__v4l2_ctrl_s_ctrl(imx219->vblank,
++					   mode->vts_def - mode->height);
++			/*
++			 * Update max exposure while meeting
++			 * expected vblanking
++			 */
++			exposure_max = mode->vts_def - 4;
++			exposure_def =
++				(exposure_max < IMX219_EXPOSURE_DEFAULT) ?
++					exposure_max : IMX219_EXPOSURE_DEFAULT;
++			__v4l2_ctrl_modify_range(imx219->exposure,
++						 imx219->exposure->minimum,
++						 exposure_max,
++						 imx219->exposure->step,
++						 exposure_def);
++			/*
++			 * Currently PPL is fixed to IMX219_PPL_DEFAULT, so
++			 * hblank depends on mode->width only, and is not
++			 * changeble in any way other than changing the mode.
++			 */
++			hblank = IMX219_PPL_DEFAULT - mode->width;
++			__v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank,
++						 1, hblank);
++		}
++	} else {
++		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++			framefmt = v4l2_subdev_get_try_format(sd, cfg,
++							      fmt->pad);
++			*framefmt = fmt->format;
++		} else {
++			/* Only one embedded data mode is supported */
++			imx219_update_metadata_pad_format(fmt);
++		}
+ 	}
+ 
+ 	mutex_unlock(&imx219->mutex);
+@@ -1511,13 +1594,14 @@ static int imx219_probe(struct i2c_clien
+ 	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ 	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ 
+-	/* Initialize source pad */
+-	imx219->pad.flags = MEDIA_PAD_FL_SOURCE;
++	/* Initialize source pads */
++	imx219->pad[IMAGE_PAD].flags = MEDIA_PAD_FL_SOURCE;
++	imx219->pad[METADATA_PAD].flags = MEDIA_PAD_FL_SOURCE;
+ 
+ 	/* Initialize default format */
+ 	imx219_set_default_format(imx219);
+ 
+-	ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad);
++	ret = media_entity_pads_init(&imx219->sd.entity, NUM_PADS, imx219->pad);
+ 	if (ret) {
+ 		dev_err(dev, "failed to init entity pads: %d\n", ret);
+ 		goto error_handler_free;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0218-media-bcm2835-unicam-Re-fetch-mbus-code-from-subdev-.patch b/target/linux/bcm27xx/patches-5.10/950-0218-media-bcm2835-unicam-Re-fetch-mbus-code-from-subdev-.patch
new file mode 100644
index 0000000000..3bd8c0fc58
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0218-media-bcm2835-unicam-Re-fetch-mbus-code-from-subdev-.patch
@@ -0,0 +1,49 @@
+From e2eb4940fd6b819d4db64e2822a2ffca7ee0a7f3 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 21 Apr 2020 16:26:03 +0100
+Subject: [PATCH] media: bcm2835-unicam: Re-fetch mbus code from subdev
+ on a g_fmt call
+
+The sensor subdevice may change the Bayer order if a H/V flip is
+requested after a s_fmt call.  Unicam g_fmt must call the subdev get_fmt
+in case this has happened and return out the correct format 4cc.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 21 ++++++++++++++++++-
+ 1 file changed, 20 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -967,11 +967,30 @@ static int unicam_enum_fmt_vid_cap(struc
+ static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
+ 				struct v4l2_format *f)
+ {
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
+ 	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	const struct unicam_fmt *fmt = NULL;
++	int ret;
+ 
+-	if (node->pad_id == METADATA_PAD)
++	if (node->pad_id != IMAGE_PAD)
+ 		return -EINVAL;
+ 
++	/*
++	 * If a flip has occurred in the sensor, the fmt code might have
++	 * changed. So we will need to re-fetch the format from the subdevice.
++	 */
++	ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
++	if (ret)
++		return -EINVAL;
++
++	/* Find the V4L2 format from mbus code. We must match a known format. */
++	fmt = find_format_by_code(mbus_fmt.code);
++	if (!fmt)
++		return -EINVAL;
++
++	node->fmt = fmt;
++	node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+ 	*f = node->v_fmt;
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0219-media-uapi-v4l2-core-Add-ISP-statistics-output-V4L2-.patch b/target/linux/bcm27xx/patches-5.10/950-0219-media-uapi-v4l2-core-Add-ISP-statistics-output-V4L2-.patch
new file mode 100644
index 0000000000..a2974a98b4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0219-media-uapi-v4l2-core-Add-ISP-statistics-output-V4L2-.patch
@@ -0,0 +1,94 @@
+From 4e9d4f3927e2e9b5fae5fefe4faf82d5ecfc86cd Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 23 Apr 2020 10:20:26 +0100
+Subject: [PATCH] media: uapi: v4l2-core: Add ISP statistics output
+ V4L2 fourcc type
+
+Add V4L2_META_FMT_BCM2835_ISP_STATS V4L2 format type.
+
+This new format will be used by the BCM2835 ISP device to return
+out ISP statistics for 3A.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../userspace-api/media/v4l/meta-formats.rst  |  1 +
+ .../v4l/pixfmt-meta-bcm2835-isp-stats.rst     | 41 +++++++++++++++++++
+ drivers/media/v4l2-core/v4l2-ioctl.c          |  1 +
+ include/uapi/linux/videodev2.h                |  1 +
+ 4 files changed, 44 insertions(+)
+ create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
+
+--- a/Documentation/userspace-api/media/v4l/meta-formats.rst
++++ b/Documentation/userspace-api/media/v4l/meta-formats.rst
+@@ -12,6 +12,7 @@ These formats are used for the :ref:`met
+ .. toctree::
+     :maxdepth: 1
+ 
++    pixfmt-meta-bcm2835-isp-stats
+     pixfmt-meta-d4xx
+     pixfmt-meta-intel-ipu3
+     pixfmt-meta-rkisp1
+--- /dev/null
++++ b/Documentation/userspace-api/media/v4l/pixfmt-meta-bcm2835-isp-stats.rst
+@@ -0,0 +1,41 @@
++.. Permission is granted to copy, distribute and/or modify this
++.. document under the terms of the GNU Free Documentation License,
++.. Version 1.1 or any later version published by the Free Software
++.. Foundation, with no Invariant Sections, no Front-Cover Texts
++.. and no Back-Cover Texts. A copy of the license is included at
++.. Documentation/media/uapi/fdl-appendix.rst.
++..
++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
++
++.. _v4l2-meta-fmt-bcm2835-isp-stats:
++
++*****************************************
++V4L2_META_FMT_BCM2835_ISP_STATS  ('BSTA')
++*****************************************
++
++BCM2835 ISP Statistics
++
++Description
++===========
++
++The BCM2835 ISP hardware calculate image statistics for an input Bayer frame.
++These statistics are obtained from the "bcm2835-isp0-capture3" device node
++using the :c:type:`v4l2_meta_format` interface. They are formatted as described
++by the :c:type:`bcm2835_isp_stats` structure below.
++
++.. code-block:: c
++
++	#define DEFAULT_AWB_REGIONS_X 16
++	#define DEFAULT_AWB_REGIONS_Y 12
++
++	#define NUM_HISTOGRAMS 2
++	#define NUM_HISTOGRAM_BINS 128
++	#define AWB_REGIONS (DEFAULT_AWB_REGIONS_X * DEFAULT_AWB_REGIONS_Y)
++	#define FLOATING_REGIONS 16
++	#define AGC_REGIONS 16
++	#define FOCUS_REGIONS 12
++
++.. kernel-doc:: include/uapi/linux/bcm2835-isp.h
++   :functions: bcm2835_isp_stats_hist bcm2835_isp_stats_region
++	             bcm2835_isp_stats_focus bcm2835_isp_stats
++
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1405,6 +1405,7 @@ static void v4l_fill_fmtdesc(struct v4l2
+ 	case V4L2_META_FMT_D4XX:	descr = "Intel D4xx UVC Metadata"; break;
+ 	case V4L2_META_FMT_VIVID:       descr = "Vivid Metadata"; break;
+ 	case V4L2_META_FMT_SENSOR_DATA:	descr = "Sensor Ancillary Metadata"; break;
++	case V4L2_META_FMT_BCM2835_ISP_STATS: descr = "BCM2835 ISP Image Statistics"; break;
+ 
+ 	default:
+ 		/* Compressed formats */
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -779,6 +779,7 @@ struct v4l2_pix_format {
+ #define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */
+ #define V4L2_META_FMT_VIVID	  v4l2_fourcc('V', 'I', 'V', 'D') /* Vivid Metadata */
+ #define V4L2_META_FMT_SENSOR_DATA v4l2_fourcc('S', 'E', 'N', 'S') /* Sensor Ancillary metadata */
++#define V4L2_META_FMT_BCM2835_ISP_STATS v4l2_fourcc('B', 'S', 'T', 'A') /* BCM2835 ISP image statistics output */
+ 
+ /* priv field value to indicates that subsequent fields are valid. */
+ #define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe
diff --git a/target/linux/bcm27xx/patches-5.10/950-0220-media-uapi-v4l-ctrls-Add-CID-base-for-the-bcm2835-is.patch b/target/linux/bcm27xx/patches-5.10/950-0220-media-uapi-v4l-ctrls-Add-CID-base-for-the-bcm2835-is.patch
new file mode 100644
index 0000000000..ec838bc50b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0220-media-uapi-v4l-ctrls-Add-CID-base-for-the-bcm2835-is.patch
@@ -0,0 +1,169 @@
+From 1dccb28000e0b12b5796a682f1995bdf0f38f7e5 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 21 Apr 2020 15:06:19 +0100
+Subject: [PATCH] media: uapi: v4l-ctrls: Add CID base for the
+ bcm2835-isp driver
+
+We are reserving controls for the new bcm2835-isp driver.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../admin-guide/media/bcm2835-isp.rst         | 127 ++++++++++++++++++
+ .../userspace-api/media/drivers/index.rst     |   1 +
+ include/uapi/linux/v4l2-controls.h            |   4 +
+ 3 files changed, 132 insertions(+)
+ create mode 100644 Documentation/admin-guide/media/bcm2835-isp.rst
+
+--- /dev/null
++++ b/Documentation/admin-guide/media/bcm2835-isp.rst
+@@ -0,0 +1,127 @@
++.. SPDX-License-Identifier: GPL-2.0
++
++BCM2835 ISP Driver
++==================
++
++Introduction
++------------
++
++The BCM2835 Image Sensor Pipeline (ISP) is a fixed function hardware pipeline
++for performing image processing operations.  Images are fed to the input
++of the ISP through memory frame buffers.  These images may be in various YUV,
++RGB, or Bayer formats.  A typical use case would have Bayer images obtained from
++an image sensor by the BCM2835 Unicam peripheral, written to a memory
++frame buffer, and finally fed into the input of the ISP.  Two concurrent output
++images may be generated in YUV or RGB format at different resolutions.
++Statistics output is also generated for Bayer input images.
++
++The bcm2835-isp driver exposes the following media pads as V4L2 device nodes:
++
++.. tabularcolumns:: |l|l|l|l|
++
++.. cssclass: longtable
++
++.. flat-table::
++
++    * - *Pad*
++      - *Direction*
++      - *Purpose*
++      - *Formats*
++
++    * - "bcm2835-isp0-output0"
++      - sink
++      - Accepts Bayer, RGB or YUV format frame buffers as input to the ISP HW
++        pipeline.
++      - :ref:`RAW8 <V4L2-PIX-FMT-SRGGB8>`,
++        :ref:`RAW10P <V4L2-PIX-FMT-SRGGB10P>`,
++        :ref:`RAW12P <V4L2-PIX-FMT-SRGGB12P>`,
++        :ref:`RAW14P <V4L2-PIX-FMT-SRGGB14P>`,
++        :ref:`RAW16 <V4L2-PIX-FMT-SRGGB16>`,
++        :ref:`RGB24/BGR24 <V4L2-PIX-FMT-RGB24>`,
++        :ref:`YUYV <V4L2-PIX-FMT-YUYV>`,
++        :ref:`YVYU <V4L2-PIX-FMT-YVYU>`,
++        :ref:`UYVY <V4L2-PIX-FMT-UYVY>`,
++        :ref:`VYUY <V4L2-PIX-FMT-VYUY>`,
++        :ref:`YUV420/YVU420 <V4L2-PIX-FMT-YUV420>`
++
++    * - "bcm2835-isp0-capture1"
++      - source
++      - High resolution YUV or RGB processed output from the ISP.
++      - :ref:`RGB565 <V4L2-PIX-FMT-RGB565>`,
++        :ref:`RGB24/BGR24 <V4L2-PIX-FMT-RGB24>`,
++        :ref:`ABGR32 <V4L2-PIX-FMT-ABGR32>`,
++        :ref:`YUYV <V4L2-PIX-FMT-YUYV>`,
++        :ref:`YVYU <V4L2-PIX-FMT-YVYU>`,
++        :ref:`UYVY <V4L2-PIX-FMT-UYVY>`,
++        :ref:`VYUY <V4L2-PIX-FMT-VYUY>`.
++        :ref:`YUV420/YVU420 <V4L2-PIX-FMT-YUV420>`,
++        :ref:`NV12/NV21 <V4L2-PIX-FMT-NV12>`,
++
++    * - "bcm2835-isp0-capture2"
++      - source
++      - Low resolution YUV processed output from the ISP. The output of
++        this pad cannot have a resolution larger than the "bcm2835-isp0-capture1" pad in any dimension.
++      - :ref:`YUYV <V4L2-PIX-FMT-YUYV>`,
++        :ref:`YVYU <V4L2-PIX-FMT-YVYU>`,
++        :ref:`UYVY <V4L2-PIX-FMT-UYVY>`,
++        :ref:`VYUY <V4L2-PIX-FMT-VYUY>`.
++        :ref:`YUV420/YVU420 <V4L2-PIX-FMT-YUV420>`,
++        :ref:`NV12/NV21 <V4L2-PIX-FMT-NV12>`,
++
++    * - "bcm2835-isp0-capture1"
++      - source
++      - Image statistics calculated from the input image provided on the
++        "bcm2835-isp0-output0" pad.  Statistics are only available for Bayer
++        format input images.
++      - :ref:`v4l2-meta-fmt-bcm2835-isp-stats`.
++
++Pipeline Configuration
++----------------------
++
++The ISP pipeline can be configure through user-space by calling
++:ref:`VIDIOC_S_EXT_CTRLS <VIDIOC_G_EXT_CTRLS>` on the “bcm2835-isp0-output0”
++node with the appropriate parameters as shown in the table below.
++
++.. tabularcolumns:: |p{2cm}|p{5.0cm}|
++
++.. cssclass: longtable
++
++.. flat-table::
++
++    * - *id*
++      - *Parameter*
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_CC_MATRIX``
++      - struct :c:type:`bcm2835_isp_custom_ccm`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_LENS_SHADING``
++      - struct :c:type:`bcm2835_isp_lens_shading`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_BLACK_LEVEL``
++      - struct :c:type:`bcm2835_isp_black_level`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_GEQ``
++      - struct :c:type:`bcm2835_isp_geq`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_GAMMA``
++      - struct :c:type:`bcm2835_isp_gamma`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_DENOISE``
++      - struct :c:type:`bcm2835_isp_denoise`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_SHARPEN``
++      - struct :c:type:`bcm2835_isp_sharpen`
++
++    * - ``V4L2_CID_USER_BCM2835_ISP_DPC``
++      - struct :c:type:`bcm2835_isp_dpc`
++
++++++++++++++++++++++++++
++Configuration Parameters
++++++++++++++++++++++++++
++
++.. kernel-doc:: include/uapi/linux/bcm2835-isp.h
++   :functions: bcm2835_isp_rational bcm2835_isp_ccm bcm2835_isp_custom_ccm
++                bcm2835_isp_gain_format bcm2835_isp_lens_shading
++                bcm2835_isp_black_level bcm2835_isp_geq bcm2835_isp_gamma
++                bcm2835_isp_denoise bcm2835_isp_sharpen
++                bcm2835_isp_dpc_mode bcm2835_isp_dpc
+--- a/Documentation/userspace-api/media/drivers/index.rst
++++ b/Documentation/userspace-api/media/drivers/index.rst
+@@ -33,6 +33,7 @@ For more details see the file COPYING in
+ 
+ 	cx2341x-uapi
+ 	imx-uapi
++	bcm2835-isp
+ 	max2175
+ 	meye-uapi
+ 	omap3isp-uapi
+--- a/include/uapi/linux/v4l2-controls.h
++++ b/include/uapi/linux/v4l2-controls.h
+@@ -198,6 +198,10 @@ enum v4l2_colorfx {
+  */
+ #define V4L2_CID_USER_ATMEL_ISC_BASE		(V4L2_CID_USER_BASE + 0x10c0)
+ 
++/* The base for the bcm2835-isp driver controls.
++ * We reserve 16 controls for this driver. */
++#define V4L2_CID_USER_BCM2835_ISP_BASE		(V4L2_CID_USER_BASE + 0x10e0)
++
+ /* MPEG-class control IDs */
+ /* The MPEG controls are applicable to all codec controls
+  * and the 'MPEG' part of the define is historical */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0221-staging-vchiq-Load-bcm2835_isp-driver-from-vchiq.patch b/target/linux/bcm27xx/patches-5.10/950-0221-staging-vchiq-Load-bcm2835_isp-driver-from-vchiq.patch
new file mode 100644
index 0000000000..e621e74073
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0221-staging-vchiq-Load-bcm2835_isp-driver-from-vchiq.patch
@@ -0,0 +1,39 @@
+From c05548e7942540ef85c096853d56114816e92a39 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 22 Apr 2020 08:32:32 +0100
+Subject: [PATCH] staging: vchiq: Load bcm2835_isp driver from vchiq
+
+bcmn2835_isp is a platform driver dependent on vchiq,
+therefore add the load/unload functions for it to vchiq.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -111,6 +111,7 @@ static struct platform_device *bcm2835_c
+ static struct platform_device *bcm2835_audio;
+ static struct platform_device *bcm2835_codec;
+ static struct platform_device *vcsm_cma;
++static struct platform_device *bcm2835_isp;
+ 
+ static struct vchiq_drvdata bcm2835_drvdata = {
+ 	.cache_line_size = 32,
+@@ -2796,6 +2797,7 @@ static int vchiq_probe(struct platform_d
+ 	bcm2835_codec = vchiq_register_child(pdev, "bcm2835-codec");
+ 	bcm2835_camera = vchiq_register_child(pdev, "bcm2835-camera");
+ 	bcm2835_audio = vchiq_register_child(pdev, "bcm2835_audio");
++	bcm2835_isp = vchiq_register_child(pdev, "bcm2835-isp");
+ 
+ 	return 0;
+ 
+@@ -2808,6 +2810,7 @@ failed_platform_init:
+ 
+ static int vchiq_remove(struct platform_device *pdev)
+ {
++	platform_device_unregister(bcm2835_isp);
+ 	platform_device_unregister(bcm2835_audio);
+ 	platform_device_unregister(bcm2835_camera);
+ 	platform_device_unregister(bcm2835_codec);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0222-bcm2835-dma-Add-proper-40-bit-DMA-support.patch b/target/linux/bcm27xx/patches-5.10/950-0222-bcm2835-dma-Add-proper-40-bit-DMA-support.patch
new file mode 100644
index 0000000000..12291834b1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0222-bcm2835-dma-Add-proper-40-bit-DMA-support.patch
@@ -0,0 +1,801 @@
+From e53a536e7a182f97adf5394c4ef621a30adf6543 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Thu, 4 Apr 2019 13:33:47 +0100
+Subject: [PATCH] bcm2835-dma: Add proper 40-bit DMA support
+
+BCM2711 has 4 DMA channels with a 40-bit address range, allowing them
+to access the full 4GB of memory on a Pi 4.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/dma/bcm2835-dma.c | 485 ++++++++++++++++++++++++++++++++------
+ 1 file changed, 412 insertions(+), 73 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -38,6 +38,11 @@
+ #define BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED 14
+ #define BCM2835_DMA_CHAN_NAME_SIZE 8
+ #define BCM2835_DMA_BULK_MASK  BIT(0)
++#define BCM2711_DMA_MEMCPY_CHAN 14
++
++struct bcm2835_dma_cfg_data {
++	u32	chan_40bit_mask;
++};
+ 
+ /**
+  * struct bcm2835_dmadev - BCM2835 DMA controller
+@@ -50,6 +55,7 @@ struct bcm2835_dmadev {
+ 	struct dma_device ddev;
+ 	void __iomem *base;
+ 	dma_addr_t zero_page;
++	const struct bcm2835_dma_cfg_data *cfg_data;
+ };
+ 
+ struct bcm2835_dma_cb {
+@@ -62,6 +68,17 @@ struct bcm2835_dma_cb {
+ 	uint32_t pad[2];
+ };
+ 
++struct bcm2711_dma40_scb {
++	uint32_t ti;
++	uint32_t src;
++	uint32_t srci;
++	uint32_t dst;
++	uint32_t dsti;
++	uint32_t len;
++	uint32_t next_cb;
++	uint32_t rsvd;
++};
++
+ struct bcm2835_cb_entry {
+ 	struct bcm2835_dma_cb *cb;
+ 	dma_addr_t paddr;
+@@ -82,6 +99,7 @@ struct bcm2835_chan {
+ 	unsigned int irq_flags;
+ 
+ 	bool is_lite_channel;
++	bool is_40bit_channel;
+ };
+ 
+ struct bcm2835_desc {
+@@ -171,13 +189,118 @@ struct bcm2835_desc {
+ #define BCM2835_DMA_DATA_TYPE_S128	16
+ 
+ /* Valid only for channels 0 - 14, 15 has its own base address */
+-#define BCM2835_DMA_CHAN(n)	((n) << 8) /* Base address */
++#define BCM2835_DMA_CHAN_SIZE	0x100
++#define BCM2835_DMA_CHAN(n)	((n) * BCM2835_DMA_CHAN_SIZE) /* Base address */
+ #define BCM2835_DMA_CHANIO(base, n) ((base) + BCM2835_DMA_CHAN(n))
+ 
+ /* the max dma length for different channels */
+ #define MAX_DMA_LEN SZ_1G
+ #define MAX_LITE_DMA_LEN (SZ_64K - 4)
+ 
++/* 40-bit DMA support */
++#define BCM2711_DMA40_CS	0x00
++#define BCM2711_DMA40_CB	0x04
++#define BCM2711_DMA40_DEBUG	0x0c
++#define BCM2711_DMA40_TI	0x10
++#define BCM2711_DMA40_SRC	0x14
++#define BCM2711_DMA40_SRCI	0x18
++#define BCM2711_DMA40_DEST	0x1c
++#define BCM2711_DMA40_DESTI	0x20
++#define BCM2711_DMA40_LEN	0x24
++#define BCM2711_DMA40_NEXT_CB	0x28
++#define BCM2711_DMA40_DEBUG2	0x2c
++
++#define BCM2711_DMA40_ACTIVE		BIT(0)
++#define BCM2711_DMA40_END		BIT(1)
++#define BCM2711_DMA40_INT		BIT(2)
++#define BCM2711_DMA40_DREQ		BIT(3)  /* DREQ state */
++#define BCM2711_DMA40_RD_PAUSED		BIT(4)  /* Reading is paused */
++#define BCM2711_DMA40_WR_PAUSED		BIT(5)  /* Writing is paused */
++#define BCM2711_DMA40_DREQ_PAUSED	BIT(6)  /* Is paused by DREQ flow control */
++#define BCM2711_DMA40_WAITING_FOR_WRITES BIT(7)  /* Waiting for last write */
++#define BCM2711_DMA40_ERR		BIT(10)
++#define BCM2711_DMA40_QOS(x)		(((x) & 0x1f) << 16)
++#define BCM2711_DMA40_PANIC_QOS(x)	(((x) & 0x1f) << 20)
++#define BCM2711_DMA40_WAIT_FOR_WRITES	BIT(28)
++#define BCM2711_DMA40_DISDEBUG		BIT(29)
++#define BCM2711_DMA40_ABORT		BIT(30)
++#define BCM2711_DMA40_HALT		BIT(31)
++#define BCM2711_DMA40_CS_FLAGS(x) (x & (BCM2711_DMA40_QOS(15) | \
++					BCM2711_DMA40_PANIC_QOS(15) | \
++					BCM2711_DMA40_WAIT_FOR_WRITES |	\
++					BCM2711_DMA40_DISDEBUG))
++
++/* Transfer information bits */
++#define BCM2711_DMA40_INTEN		BIT(0)
++#define BCM2711_DMA40_TDMODE		BIT(1) /* 2D-Mode */
++#define BCM2711_DMA40_WAIT_RESP		BIT(2) /* wait for AXI write to be acked */
++#define BCM2711_DMA40_WAIT_RD_RESP	BIT(3) /* wait for AXI read to complete */
++#define BCM2711_DMA40_PER_MAP(x)	((x & 31) << 9) /* REQ source */
++#define BCM2711_DMA40_S_DREQ		BIT(14) /* enable SREQ for source */
++#define BCM2711_DMA40_D_DREQ		BIT(15) /* enable DREQ for destination */
++#define BCM2711_DMA40_S_WAIT(x)		((x & 0xff) << 16) /* add DMA read-wait cycles */
++#define BCM2711_DMA40_D_WAIT(x)		((x & 0xff) << 24) /* add DMA write-wait cycles */
++
++/* debug register bits */
++#define BCM2711_DMA40_DEBUG_WRITE_ERR		BIT(0)
++#define BCM2711_DMA40_DEBUG_FIFO_ERR		BIT(1)
++#define BCM2711_DMA40_DEBUG_READ_ERR		BIT(2)
++#define BCM2711_DMA40_DEBUG_READ_CB_ERR		BIT(3)
++#define BCM2711_DMA40_DEBUG_IN_ON_ERR		BIT(8)
++#define BCM2711_DMA40_DEBUG_ABORT_ON_ERR	BIT(9)
++#define BCM2711_DMA40_DEBUG_HALT_ON_ERR		BIT(10)
++#define BCM2711_DMA40_DEBUG_DISABLE_CLK_GATE	BIT(11)
++#define BCM2711_DMA40_DEBUG_RSTATE_SHIFT	14
++#define BCM2711_DMA40_DEBUG_RSTATE_BITS		4
++#define BCM2711_DMA40_DEBUG_WSTATE_SHIFT	18
++#define BCM2711_DMA40_DEBUG_WSTATE_BITS		4
++#define BCM2711_DMA40_DEBUG_RESET		BIT(23)
++#define BCM2711_DMA40_DEBUG_ID_SHIFT		24
++#define BCM2711_DMA40_DEBUG_ID_BITS		4
++#define BCM2711_DMA40_DEBUG_VERSION_SHIFT	28
++#define BCM2711_DMA40_DEBUG_VERSION_BITS	4
++
++/* Valid only for channels 0 - 3 (11 - 14) */
++#define BCM2711_DMA40_CHAN(n)	(((n) + 11) << 8) /* Base address */
++#define BCM2711_DMA40_CHANIO(base, n) ((base) + BCM2711_DMA_CHAN(n))
++
++/* the max dma length for different channels */
++#define MAX_DMA40_LEN SZ_1G
++
++#define BCM2711_DMA40_BURST_LEN(x)	((min(x,16) - 1) << 8)
++#define BCM2711_DMA40_INC		BIT(12)
++#define BCM2711_DMA40_SIZE_32		(0 << 13)
++#define BCM2711_DMA40_SIZE_64		(1 << 13)
++#define BCM2711_DMA40_SIZE_128		(2 << 13)
++#define BCM2711_DMA40_SIZE_256		(3 << 13)
++#define BCM2711_DMA40_IGNORE		BIT(15)
++#define BCM2711_DMA40_STRIDE(x)		((x) << 16) /* For 2D mode */
++
++#define BCM2711_DMA40_MEMCPY_FLAGS \
++	(BCM2711_DMA40_QOS(0) | \
++	 BCM2711_DMA40_PANIC_QOS(0) | \
++	 BCM2711_DMA40_WAIT_FOR_WRITES | \
++	 BCM2711_DMA40_DISDEBUG)
++
++#define BCM2711_DMA40_MEMCPY_XFER_INFO \
++	(BCM2711_DMA40_SIZE_128 | \
++	 BCM2711_DMA40_INC | \
++	 BCM2711_DMA40_BURST_LEN(16))
++
++struct bcm2835_dmadev *memcpy_parent;
++static void __iomem *memcpy_chan;
++static struct bcm2711_dma40_scb *memcpy_scb;
++static dma_addr_t memcpy_scb_dma;
++DEFINE_SPINLOCK(memcpy_lock);
++
++static const struct bcm2835_dma_cfg_data bcm2835_dma_cfg = {
++	.chan_40bit_mask = 0,
++};
++
++static const struct bcm2835_dma_cfg_data bcm2711_dma_cfg = {
++	.chan_40bit_mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
++};
++
+ static inline size_t bcm2835_dma_max_frame_length(struct bcm2835_chan *c)
+ {
+ 	/* lite and normal channels have different max frame length */
+@@ -207,6 +330,32 @@ static inline struct bcm2835_desc *to_bc
+ 	return container_of(t, struct bcm2835_desc, vd.tx);
+ }
+ 
++static inline uint32_t to_bcm2711_ti(uint32_t info)
++{
++	return ((info & BCM2835_DMA_INT_EN) ? BCM2711_DMA40_INTEN : 0) |
++		((info & BCM2835_DMA_WAIT_RESP) ? BCM2711_DMA40_WAIT_RESP : 0) |
++		((info & BCM2835_DMA_S_DREQ) ?
++		 (BCM2711_DMA40_S_DREQ | BCM2711_DMA40_WAIT_RD_RESP) : 0) |
++		((info & BCM2835_DMA_D_DREQ) ? BCM2711_DMA40_D_DREQ : 0) |
++		BCM2711_DMA40_PER_MAP((info >> 16) & 0x1f);
++}
++
++static inline uint32_t to_bcm2711_srci(uint32_t info)
++{
++	return ((info & BCM2835_DMA_S_INC) ? BCM2711_DMA40_INC : 0);
++}
++
++static inline uint32_t to_bcm2711_dsti(uint32_t info)
++{
++	return ((info & BCM2835_DMA_D_INC) ? BCM2711_DMA40_INC : 0);
++}
++
++static inline uint32_t to_bcm2711_cbaddr(dma_addr_t addr)
++{
++	BUG_ON(addr & 0x1f);
++	return (addr >> 5);
++}
++
+ static void bcm2835_dma_free_cb_chain(struct bcm2835_desc *desc)
+ {
+ 	size_t i;
+@@ -225,45 +374,53 @@ static void bcm2835_dma_desc_free(struct
+ }
+ 
+ static void bcm2835_dma_create_cb_set_length(
+-	struct bcm2835_chan *chan,
++	struct bcm2835_chan *c,
+ 	struct bcm2835_dma_cb *control_block,
+ 	size_t len,
+ 	size_t period_len,
+ 	size_t *total_len,
+ 	u32 finalextrainfo)
+ {
+-	size_t max_len = bcm2835_dma_max_frame_length(chan);
++	size_t max_len = bcm2835_dma_max_frame_length(c);
++	uint32_t cb_len;
+ 
+ 	/* set the length taking lite-channel limitations into account */
+-	control_block->length = min_t(u32, len, max_len);
++	cb_len = min_t(u32, len, max_len);
+ 
+-	/* finished if we have no period_length */
+-	if (!period_len)
+-		return;
++	if (period_len) {
++		/*
++		 * period_len means: that we need to generate
++		 * transfers that are terminating at every
++		 * multiple of period_len - this is typically
++		 * used to set the interrupt flag in info
++		 * which is required during cyclic transfers
++		 */
+ 
+-	/*
+-	 * period_len means: that we need to generate
+-	 * transfers that are terminating at every
+-	 * multiple of period_len - this is typically
+-	 * used to set the interrupt flag in info
+-	 * which is required during cyclic transfers
+-	 */
++		/* have we filled in period_length yet? */
++		if (*total_len + cb_len < period_len) {
++			/* update number of bytes in this period so far */
++			*total_len += cb_len;
++		} else {
++			/* calculate the length that remains to reach period_len */
++			cb_len = period_len - *total_len;
+ 
+-	/* have we filled in period_length yet? */
+-	if (*total_len + control_block->length < period_len) {
+-		/* update number of bytes in this period so far */
+-		*total_len += control_block->length;
+-		return;
++			/* reset total_length for next period */
++			*total_len = 0;
++		}
+ 	}
+ 
+-	/* calculate the length that remains to reach period_length */
+-	control_block->length = period_len - *total_len;
+-
+-	/* reset total_length for next period */
+-	*total_len = 0;
+-
+-	/* add extrainfo bits in info */
+-	control_block->info |= finalextrainfo;
++	if (c->is_40bit_channel) {
++		struct bcm2711_dma40_scb *scb =
++			(struct bcm2711_dma40_scb *)control_block;
++
++		scb->len = cb_len;
++		/* add extrainfo bits to ti */
++		scb->ti |= to_bcm2711_ti(finalextrainfo);
++	} else {
++		control_block->length = cb_len;
++		/* add extrainfo bits to info */
++		control_block->info |= finalextrainfo;
++	}
+ }
+ 
+ static inline size_t bcm2835_dma_count_frames_for_sg(
+@@ -286,7 +443,7 @@ static inline size_t bcm2835_dma_count_f
+ /**
+  * bcm2835_dma_create_cb_chain - create a control block and fills data in
+  *
+- * @chan:           the @dma_chan for which we run this
++ * @c:              the @bcm2835_chan for which we run this
+  * @direction:      the direction in which we transfer
+  * @cyclic:         it is a cyclic transfer
+  * @info:           the default info bits to apply per controlblock
+@@ -304,12 +461,11 @@ static inline size_t bcm2835_dma_count_f
+  * @gfp:            the GFP flag to use for allocation
+  */
+ static struct bcm2835_desc *bcm2835_dma_create_cb_chain(
+-	struct dma_chan *chan, enum dma_transfer_direction direction,
++	struct bcm2835_chan *c, enum dma_transfer_direction direction,
+ 	bool cyclic, u32 info, u32 finalextrainfo, size_t frames,
+ 	dma_addr_t src, dma_addr_t dst, size_t buf_len,
+ 	size_t period_len, gfp_t gfp)
+ {
+-	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	size_t len = buf_len, total_len;
+ 	size_t frame;
+ 	struct bcm2835_desc *d;
+@@ -341,11 +497,23 @@ static struct bcm2835_desc *bcm2835_dma_
+ 
+ 		/* fill in the control block */
+ 		control_block = cb_entry->cb;
+-		control_block->info = info;
+-		control_block->src = src;
+-		control_block->dst = dst;
+-		control_block->stride = 0;
+-		control_block->next = 0;
++		if (c->is_40bit_channel) {
++			struct bcm2711_dma40_scb *scb =
++				(struct bcm2711_dma40_scb *)control_block;
++			scb->ti = to_bcm2711_ti(info);
++			scb->src = lower_32_bits(src);
++			scb->srci= upper_32_bits(src) | to_bcm2711_srci(info);
++			scb->dst = lower_32_bits(dst);
++			scb->dsti = upper_32_bits(dst) | to_bcm2711_dsti(info);
++			scb->next_cb = 0;
++		} else {
++			control_block->info = info;
++			control_block->src = src;
++			control_block->dst = dst;
++			control_block->stride = 0;
++			control_block->next = 0;
++		}
++
+ 		/* set up length in control_block if requested */
+ 		if (buf_len) {
+ 			/* calculate length honoring period_length */
+@@ -359,7 +527,11 @@ static struct bcm2835_desc *bcm2835_dma_
+ 		}
+ 
+ 		/* link this the last controlblock */
+-		if (frame)
++		if (frame && c->is_40bit_channel)
++			((struct bcm2711_dma40_scb *)
++			 d->cb_list[frame - 1].cb)->next_cb =
++				to_bcm2711_cbaddr(cb_entry->paddr);
++		if (frame && !c->is_40bit_channel)
+ 			d->cb_list[frame - 1].cb->next = cb_entry->paddr;
+ 
+ 		/* update src and dst and length */
+@@ -369,11 +541,21 @@ static struct bcm2835_desc *bcm2835_dma_
+ 			dst += control_block->length;
+ 
+ 		/* Length of total transfer */
+-		d->size += control_block->length;
++		if (c->is_40bit_channel)
++			d->size += ((struct bcm2711_dma40_scb *)control_block)->len;
++		else
++			d->size += control_block->length;
+ 	}
+ 
+ 	/* the last frame requires extra flags */
+-	d->cb_list[d->frames - 1].cb->info |= finalextrainfo;
++	if (c->is_40bit_channel) {
++		struct bcm2711_dma40_scb *scb =
++			(struct bcm2711_dma40_scb *)d->cb_list[d->frames-1].cb;
++
++		scb->ti |= to_bcm2711_ti(finalextrainfo);
++	} else {
++		d->cb_list[d->frames - 1].cb->info |= finalextrainfo;
++	}
+ 
+ 	/* detect a size missmatch */
+ 	if (buf_len && (d->size != buf_len))
+@@ -387,13 +569,12 @@ error_cb:
+ }
+ 
+ static void bcm2835_dma_fill_cb_chain_with_sg(
+-	struct dma_chan *chan,
++	struct bcm2835_chan *c,
+ 	enum dma_transfer_direction direction,
+ 	struct bcm2835_cb_entry *cb,
+ 	struct scatterlist *sgl,
+ 	unsigned int sg_len)
+ {
+-	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	size_t len, max_len;
+ 	unsigned int i;
+ 	dma_addr_t addr;
+@@ -401,14 +582,35 @@ static void bcm2835_dma_fill_cb_chain_wi
+ 
+ 	max_len = bcm2835_dma_max_frame_length(c);
+ 	for_each_sg(sgl, sgent, sg_len, i) {
+-		for (addr = sg_dma_address(sgent), len = sg_dma_len(sgent);
+-		     len > 0;
+-		     addr += cb->cb->length, len -= cb->cb->length, cb++) {
+-			if (direction == DMA_DEV_TO_MEM)
+-				cb->cb->dst = addr;
+-			else
+-				cb->cb->src = addr;
+-			cb->cb->length = min(len, max_len);
++		if (c->is_40bit_channel) {
++			struct bcm2711_dma40_scb *scb;
++
++			for (addr = sg_dma_address(sgent),
++				     len = sg_dma_len(sgent);
++				     len > 0;
++			     addr += scb->len, len -= scb->len, cb++) {
++				scb = (struct bcm2711_dma40_scb *)cb->cb;
++				if (direction == DMA_DEV_TO_MEM) {
++					scb->dst = lower_32_bits(addr);
++					scb->dsti = upper_32_bits(addr) | BCM2711_DMA40_INC;
++				} else {
++					scb->src = lower_32_bits(addr);
++					scb->srci = upper_32_bits(addr) | BCM2711_DMA40_INC;
++				}
++				scb->len = min(len, max_len);
++			}
++		} else {
++			for (addr = sg_dma_address(sgent),
++				     len = sg_dma_len(sgent);
++			     len > 0;
++			     addr += cb->cb->length, len -= cb->cb->length,
++			     cb++) {
++				if (direction == DMA_DEV_TO_MEM)
++					cb->cb->dst = addr;
++				else
++					cb->cb->src = addr;
++				cb->cb->length = min(len, max_len);
++			}
+ 		}
+ 	}
+ }
+@@ -417,6 +619,10 @@ static void bcm2835_dma_abort(struct bcm
+ {
+ 	void __iomem *chan_base = c->chan_base;
+ 	long int timeout = 10000;
++	u32 wait_mask = BCM2835_DMA_WAITING_FOR_WRITES;
++
++	if (c->is_40bit_channel)
++		wait_mask = BCM2711_DMA40_WAITING_FOR_WRITES;
+ 
+ 	/*
+ 	 * A zero control block address means the channel is idle.
+@@ -429,8 +635,7 @@ static void bcm2835_dma_abort(struct bcm
+ 	writel(0, chan_base + BCM2835_DMA_CS);
+ 
+ 	/* Wait for any current AXI transfer to complete */
+-	while ((readl(chan_base + BCM2835_DMA_CS) &
+-		BCM2835_DMA_WAITING_FOR_WRITES) && --timeout)
++	while ((readl(chan_base + BCM2835_DMA_CS) & wait_mask) && --timeout)
+ 		cpu_relax();
+ 
+ 	/* Peripheral might be stuck and fail to signal AXI write responses */
+@@ -455,9 +660,16 @@ static void bcm2835_dma_start_desc(struc
+ 
+ 	c->desc = d = to_bcm2835_dma_desc(&vd->tx);
+ 
+-	writel(d->cb_list[0].paddr, c->chan_base + BCM2835_DMA_ADDR);
+-	writel(BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
+-	       c->chan_base + BCM2835_DMA_CS);
++	if (c->is_40bit_channel) {
++		writel(to_bcm2711_cbaddr(d->cb_list[0].paddr),
++		       c->chan_base + BCM2711_DMA40_CB);
++		writel(BCM2711_DMA40_ACTIVE | BCM2711_DMA40_CS_FLAGS(c->dreq),
++		       c->chan_base + BCM2711_DMA40_CS);
++	} else {
++		writel(d->cb_list[0].paddr, c->chan_base + BCM2835_DMA_ADDR);
++		writel(BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
++		       c->chan_base + BCM2835_DMA_CS);
++	}
+ }
+ 
+ static irqreturn_t bcm2835_dma_callback(int irq, void *data)
+@@ -484,8 +696,7 @@ static irqreturn_t bcm2835_dma_callback(
+ 	 * if this IRQ handler is threaded.) If the channel is finished, it
+ 	 * will remain idle despite the ACTIVE flag being set.
+ 	 */
+-	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE |
+-	       BCM2835_DMA_CS_FLAGS(c->dreq),
++	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
+ 	       c->chan_base + BCM2835_DMA_CS);
+ 
+ 	d = c->desc;
+@@ -588,9 +799,17 @@ static enum dma_status bcm2835_dma_tx_st
+ 		struct bcm2835_desc *d = c->desc;
+ 		dma_addr_t pos;
+ 
+-		if (d->dir == DMA_MEM_TO_DEV)
++		if (d->dir == DMA_MEM_TO_DEV && c->is_40bit_channel)
++			pos = readl(c->chan_base + BCM2711_DMA40_SRC) +
++				((readl(c->chan_base + BCM2711_DMA40_SRCI) &
++				  0xff) << 8);
++		else if (d->dir == DMA_MEM_TO_DEV && !c->is_40bit_channel)
+ 			pos = readl(c->chan_base + BCM2835_DMA_SOURCE_AD);
+-		else if (d->dir == DMA_DEV_TO_MEM)
++		else if (d->dir == DMA_DEV_TO_MEM && c->is_40bit_channel)
++			pos = readl(c->chan_base + BCM2711_DMA40_DEST) +
++				((readl(c->chan_base + BCM2711_DMA40_DESTI) &
++				  0xff) << 8);
++		else if (d->dir == DMA_DEV_TO_MEM && !c->is_40bit_channel)
+ 			pos = readl(c->chan_base + BCM2835_DMA_DEST_AD);
+ 		else
+ 			pos = 0;
+@@ -636,7 +855,7 @@ static struct dma_async_tx_descriptor *b
+ 	frames = bcm2835_dma_frames_for_length(len, max_len);
+ 
+ 	/* allocate the CB chain - this also fills in the pointers */
+-	d = bcm2835_dma_create_cb_chain(chan, DMA_MEM_TO_MEM, false,
++	d = bcm2835_dma_create_cb_chain(c, DMA_MEM_TO_MEM, false,
+ 					info, extra, frames,
+ 					src, dst, len, 0, GFP_KERNEL);
+ 	if (!d)
+@@ -671,11 +890,21 @@ static struct dma_async_tx_descriptor *b
+ 		if (c->cfg.src_addr_width != DMA_SLAVE_BUSWIDTH_4_BYTES)
+ 			return NULL;
+ 		src = c->cfg.src_addr;
++		/*
++		 * One would think it ought to be possible to get the physical
++		 * to dma address mapping information from the dma-ranges DT
++		 * property, but I've not found a way yet that doesn't involve
++		 * open-coding the whole thing.
++		 */
++		if (c->is_40bit_channel)
++		    src |= 0x400000000ull;
+ 		info |= BCM2835_DMA_S_DREQ | BCM2835_DMA_D_INC;
+ 	} else {
+ 		if (c->cfg.dst_addr_width != DMA_SLAVE_BUSWIDTH_4_BYTES)
+ 			return NULL;
+ 		dst = c->cfg.dst_addr;
++		if (c->is_40bit_channel)
++		    dst |= 0x400000000ull;
+ 		info |= BCM2835_DMA_D_DREQ | BCM2835_DMA_S_INC;
+ 	}
+ 
+@@ -683,7 +912,7 @@ static struct dma_async_tx_descriptor *b
+ 	frames = bcm2835_dma_count_frames_for_sg(c, sgl, sg_len);
+ 
+ 	/* allocate the CB chain */
+-	d = bcm2835_dma_create_cb_chain(chan, direction, false,
++	d = bcm2835_dma_create_cb_chain(c, direction, false,
+ 					info, extra,
+ 					frames, src, dst, 0, 0,
+ 					GFP_NOWAIT);
+@@ -691,7 +920,7 @@ static struct dma_async_tx_descriptor *b
+ 		return NULL;
+ 
+ 	/* fill in frames with scatterlist pointers */
+-	bcm2835_dma_fill_cb_chain_with_sg(chan, direction, d->cb_list,
++	bcm2835_dma_fill_cb_chain_with_sg(c, direction, d->cb_list,
+ 					  sgl, sg_len);
+ 
+ 	return vchan_tx_prep(&c->vc, &d->vd, flags);
+@@ -745,12 +974,16 @@ static struct dma_async_tx_descriptor *b
+ 		if (c->cfg.src_addr_width != DMA_SLAVE_BUSWIDTH_4_BYTES)
+ 			return NULL;
+ 		src = c->cfg.src_addr;
++		if (c->is_40bit_channel)
++		    src |= 0x400000000ull;
+ 		dst = buf_addr;
+ 		info |= BCM2835_DMA_S_DREQ | BCM2835_DMA_D_INC;
+ 	} else {
+ 		if (c->cfg.dst_addr_width != DMA_SLAVE_BUSWIDTH_4_BYTES)
+ 			return NULL;
+ 		dst = c->cfg.dst_addr;
++		if (c->is_40bit_channel)
++		    dst |= 0x400000000ull;
+ 		src = buf_addr;
+ 		info |= BCM2835_DMA_D_DREQ | BCM2835_DMA_S_INC;
+ 
+@@ -770,7 +1003,7 @@ static struct dma_async_tx_descriptor *b
+ 	 * note that we need to use GFP_NOWAIT, as the ALSA i2s dmaengine
+ 	 * implementation calls prep_dma_cyclic with interrupts disabled.
+ 	 */
+-	d = bcm2835_dma_create_cb_chain(chan, direction, true,
++	d = bcm2835_dma_create_cb_chain(c, direction, true,
+ 					info, extra,
+ 					frames, src, dst, buf_len,
+ 					period_len, GFP_NOWAIT);
+@@ -778,7 +1011,12 @@ static struct dma_async_tx_descriptor *b
+ 		return NULL;
+ 
+ 	/* wrap around into a loop */
+-	d->cb_list[d->frames - 1].cb->next = d->cb_list[0].paddr;
++	if (c->is_40bit_channel)
++		((struct bcm2711_dma40_scb *)
++		 d->cb_list[frames - 1].cb)->next_cb =
++			to_bcm2711_cbaddr(d->cb_list[0].paddr);
++	else
++		d->cb_list[d->frames - 1].cb->next = d->cb_list[0].paddr;
+ 
+ 	return vchan_tx_prep(&c->vc, &d->vd, flags);
+ }
+@@ -839,9 +1077,11 @@ static int bcm2835_dma_chan_init(struct
+ 	c->irq_number = irq;
+ 	c->irq_flags = irq_flags;
+ 
+-	/* check in DEBUG register if this is a LITE channel */
+-	if (readl(c->chan_base + BCM2835_DMA_DEBUG) &
+-		BCM2835_DMA_DEBUG_LITE)
++	/* check for 40bit and lite channels */
++	if (d->cfg_data->chan_40bit_mask & BIT(chan_id))
++		c->is_40bit_channel = true;
++	else if (readl(c->chan_base + BCM2835_DMA_DEBUG) &
++		 BCM2835_DMA_DEBUG_LITE)
+ 		c->is_lite_channel = true;
+ 
+ 	return 0;
+@@ -861,8 +1101,58 @@ static void bcm2835_dma_free(struct bcm2
+ 			     DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC);
+ }
+ 
++int bcm2711_dma40_memcpy_init(void)
++{
++	if (!memcpy_parent)
++		return -EPROBE_DEFER;
++
++	if (!memcpy_chan)
++		return -EINVAL;
++
++	if (!memcpy_scb)
++		return -ENOMEM;
++
++	return 0;
++}
++EXPORT_SYMBOL(bcm2711_dma40_memcpy_init);
++
++void bcm2711_dma40_memcpy(dma_addr_t dst, dma_addr_t src, size_t size)
++{
++	struct bcm2711_dma40_scb *scb = memcpy_scb;
++	unsigned long flags;
++
++	if (!scb) {
++		pr_err("bcm2711_dma40_memcpy not initialised!\n");
++		return;
++	}
++
++	spin_lock_irqsave(&memcpy_lock, flags);
++
++	scb->ti = 0;
++	scb->src = lower_32_bits(src);
++	scb->srci = upper_32_bits(src) | BCM2711_DMA40_MEMCPY_XFER_INFO;
++	scb->dst = lower_32_bits(dst);
++	scb->dsti = upper_32_bits(dst) | BCM2711_DMA40_MEMCPY_XFER_INFO;
++	scb->len = size;
++	scb->next_cb = 0;
++
++	writel((u32)(memcpy_scb_dma >> 5), memcpy_chan + BCM2711_DMA40_CB);
++	writel(BCM2711_DMA40_MEMCPY_FLAGS + BCM2711_DMA40_ACTIVE,
++	       memcpy_chan + BCM2711_DMA40_CS);
++
++	/* Poll for completion */
++	while (!(readl(memcpy_chan + BCM2711_DMA40_CS) & BCM2711_DMA40_END))
++		cpu_relax();
++
++	writel(BCM2711_DMA40_END, memcpy_chan + BCM2711_DMA40_CS);
++
++	spin_unlock_irqrestore(&memcpy_lock, flags);
++}
++EXPORT_SYMBOL(bcm2711_dma40_memcpy);
++
+ static const struct of_device_id bcm2835_dma_of_match[] = {
+-	{ .compatible = "brcm,bcm2835-dma", },
++	{ .compatible = "brcm,bcm2835-dma", .data = &bcm2835_dma_cfg },
++	{ .compatible = "brcm,bcm2711-dma", .data = &bcm2711_dma_cfg },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, bcm2835_dma_of_match);
+@@ -894,6 +1184,8 @@ static int bcm2835_dma_probe(struct plat
+ 	int irq_flags;
+ 	uint32_t chans_available;
+ 	char chan_name[BCM2835_DMA_CHAN_NAME_SIZE];
++	const struct of_device_id *of_id;
++	int chan_count, chan_start, chan_end;
+ 
+ 	if (!pdev->dev.dma_mask)
+ 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+@@ -914,9 +1206,13 @@ static int bcm2835_dma_probe(struct plat
+ 	base = devm_ioremap_resource(&pdev->dev, res);
+ 	if (IS_ERR(base))
+ 		return PTR_ERR(base);
+-	rc = bcm_dmaman_probe(pdev, base, BCM2835_DMA_BULK_MASK);
+-	if (rc)
+-		dev_err(&pdev->dev, "Failed to initialize the legacy API\n");
++
++	/* The set of channels can be split across multiple instances. */
++	chan_start = ((u32)(uintptr_t)base / BCM2835_DMA_CHAN_SIZE) & 0xf;
++	base -= BCM2835_DMA_CHAN(chan_start);
++	chan_count = resource_size(res) / BCM2835_DMA_CHAN_SIZE;
++	chan_end = min(chan_start + chan_count,
++			 BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED + 1);
+ 
+ 	od->base = base;
+ 
+@@ -953,6 +1249,14 @@ static int bcm2835_dma_probe(struct plat
+ 		return -ENOMEM;
+ 	}
+ 
++	of_id = of_match_node(bcm2835_dma_of_match, pdev->dev.of_node);
++	if (!of_id) {
++		dev_err(&pdev->dev, "Failed to match compatible string\n");
++		return -EINVAL;
++	}
++
++	od->cfg_data = of_id->data;
++
+ 	/* Request DMA channel mask from device tree */
+ 	if (of_property_read_u32(pdev->dev.of_node,
+ 			"brcm,dma-channel-mask",
+@@ -962,11 +1266,34 @@ static int bcm2835_dma_probe(struct plat
+ 		goto err_no_dma;
+ 	}
+ 
+-	/* Channel 0 is used by the legacy API */
+-	chans_available &= ~BCM2835_DMA_BULK_MASK;
++	/* One channel is reserved for the legacy API */
++	if (chans_available & BCM2835_DMA_BULK_MASK) {
++		rc = bcm_dmaman_probe(pdev, base,
++				      chans_available & BCM2835_DMA_BULK_MASK);
++		if (rc)
++			dev_err(&pdev->dev,
++				"Failed to initialize the legacy API\n");
++
++		chans_available &= ~BCM2835_DMA_BULK_MASK;
++	}
++
++	/* And possibly one for the 40-bit DMA memcpy API */
++	if (chans_available & od->cfg_data->chan_40bit_mask &
++	    BIT(BCM2711_DMA_MEMCPY_CHAN)) {
++		memcpy_parent = od;
++		memcpy_chan = BCM2835_DMA_CHANIO(base, BCM2711_DMA_MEMCPY_CHAN);
++		memcpy_scb = dma_alloc_coherent(memcpy_parent->ddev.dev,
++						sizeof(*memcpy_scb),
++						&memcpy_scb_dma, GFP_KERNEL);
++		if (!memcpy_scb)
++			dev_warn(&pdev->dev,
++				 "Failed to allocated memcpy scb\n");
++
++		chans_available &= ~BIT(BCM2711_DMA_MEMCPY_CHAN);
++	}
+ 
+ 	/* get irqs for each channel that we support */
+-	for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
++	for (i = chan_start; i < chan_end; i++) {
+ 		/* skip masked out channels */
+ 		if (!(chans_available & (1 << i))) {
+ 			irq[i] = -1;
+@@ -989,13 +1316,17 @@ static int bcm2835_dma_probe(struct plat
+ 		irq[i] = platform_get_irq(pdev, i < 11 ? i : 11);
+ 	}
+ 
++	chan_count = 0;
++
+ 	/* get irqs for each channel */
+-	for (i = 0; i <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; i++) {
++	for (i = chan_start; i < chan_end; i++) {
+ 		/* skip channels without irq */
+ 		if (irq[i] < 0)
+ 			continue;
+ 
+ 		/* check if there are other channels that also use this irq */
++		/* FIXME: This will fail if interrupts are shared across
++		   instances */
+ 		irq_flags = 0;
+ 		for (j = 0; j <= BCM2835_DMA_MAX_DMA_CHAN_SUPPORTED; j++)
+ 			if ((i != j) && (irq[j] == irq[i])) {
+@@ -1007,9 +1338,10 @@ static int bcm2835_dma_probe(struct plat
+ 		rc = bcm2835_dma_chan_init(od, i, irq[i], irq_flags);
+ 		if (rc)
+ 			goto err_no_dma;
++		chan_count++;
+ 	}
+ 
+-	dev_dbg(&pdev->dev, "Initialized %i DMA channels\n", i);
++	dev_dbg(&pdev->dev, "Initialized %i DMA channels\n", chan_count);
+ 
+ 	/* Device-tree DMA controller registration */
+ 	rc = of_dma_controller_register(pdev->dev.of_node,
+@@ -1041,6 +1373,13 @@ static int bcm2835_dma_remove(struct pla
+ 
+ 	bcm_dmaman_remove(pdev);
+ 	dma_async_device_unregister(&od->ddev);
++	if (memcpy_parent == od) {
++		dma_free_coherent(&pdev->dev, sizeof(*memcpy_scb), memcpy_scb,
++				  memcpy_scb_dma);
++		memcpy_parent = NULL;
++		memcpy_scb = NULL;
++		memcpy_chan = NULL;
++	}
+ 	bcm2835_dma_free(od);
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0223-overlays-Make-the-i2c-gpio-overlay-safe-again.patch b/target/linux/bcm27xx/patches-5.10/950-0223-overlays-Make-the-i2c-gpio-overlay-safe-again.patch
new file mode 100644
index 0000000000..589b583158
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0223-overlays-Make-the-i2c-gpio-overlay-safe-again.patch
@@ -0,0 +1,32 @@
+From 4721459bb386bf32b2295b947f38b91cdd97929b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 1 May 2020 17:56:13 +0100
+Subject: [PATCH] overlays: Make the i2c-gpio overlay safe again
+
+Like many overlays, the i2c-gpio overlay goes to efforts to avoid
+generating warnings about #address-cells and #size-cells not
+being defined, which it does by defining them. Unfortunately this
+is fatal if they don't match what the system requires, and the
+recent switch to #size-cells = 2 on 2711 made i2c-gpio very
+dangerous.
+
+In the absence of the knowledge of a clean way to fix this, just delete
+the declarations and suffer the warnings.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 3 ---
+ 1 file changed, 3 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+@@ -11,9 +11,6 @@
+ 		target-path = "/";
+ 
+ 		__overlay__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+ 			i2c_gpio: i2c@0 {
+ 				reg = <0xffffffff>;
+ 				compatible = "i2c-gpio";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0224-media-i2c-imx219-Declare-that-the-driver-can-create-.patch b/target/linux/bcm27xx/patches-5.10/950-0224-media-i2c-imx219-Declare-that-the-driver-can-create-.patch
new file mode 100644
index 0000000000..87e1000617
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0224-media-i2c-imx219-Declare-that-the-driver-can-create-.patch
@@ -0,0 +1,27 @@
+From 8a251d243fa3931f3b03677f4f58ceb728f42e99 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 20 Apr 2020 11:01:21 +0100
+Subject: [PATCH] media: i2c: imx219: Declare that the driver can
+ create events
+
+The flag V4L2_SUBDEV_FL_HAS_EVENTS is required if the subdev can
+generate events. It can create events from the ctrl handler, therefore
+this is required.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx219.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx219.c
++++ b/drivers/media/i2c/imx219.c
+@@ -1591,7 +1591,8 @@ static int imx219_probe(struct i2c_clien
+ 
+ 	/* Initialize subdev */
+ 	imx219->sd.internal_ops = &imx219_internal_ops;
+-	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
++			    V4L2_SUBDEV_FL_HAS_EVENTS;
+ 	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+ 
+ 	/* Initialize source pads */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0225-media-ov5647-Fix-return-codes-from-ov5647_write-ov56.patch b/target/linux/bcm27xx/patches-5.10/950-0225-media-ov5647-Fix-return-codes-from-ov5647_write-ov56.patch
new file mode 100644
index 0000000000..19f24a33a6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0225-media-ov5647-Fix-return-codes-from-ov5647_write-ov56.patch
@@ -0,0 +1,74 @@
+From 0a17f217911f989cd58df868f902b488088a1398 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.org>
+Date: Wed, 15 Jan 2020 13:40:38 +0000
+Subject: [PATCH] media: ov5647: Fix return codes from
+ ov5647_write/ov5647_read functions.
+
+Previously they were returning positive non-zero codes for success,
+which were getting passed up the call stack. Since release 4.19,
+do_dentry_open (fs/open.c) has been catching these and flagging an
+error. (So this driver has been broken since that date.)
+
+Fixes: 3c2472a [media] media: i2c: Add support for OV5647 sensor
+Signed-off-by: David Plowman <david.plowman@raspberrypi.org>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 30 +++++++++++++++++++++++++++---
+ 1 file changed, 27 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -214,9 +214,18 @@ static int ov5647_write(struct v4l2_subd
+ 	struct i2c_client *client = v4l2_get_subdevdata(sd);
+ 
+ 	ret = i2c_master_send(client, data, 3);
+-	if (ret < 0)
++	/*
++	 * Writing the wrong number of bytes also needs to be flagged as an
++	 * error. Success needs to produce a 0 return code.
++	 */
++	if (ret == 3) {
++		ret = 0;
++	} else {
+ 		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
+ 				__func__, reg);
++		if (ret >= 0)
++			ret = -EINVAL;
++	}
+ 
+ 	return ret;
+ }
+@@ -228,16 +237,31 @@ static int ov5647_read(struct v4l2_subde
+ 	struct i2c_client *client = v4l2_get_subdevdata(sd);
+ 
+ 	ret = i2c_master_send(client, data_w, 2);
+-	if (ret < 0) {
++	/*
++	 * A negative return code, or sending the wrong number of bytes, both
++	 * count as an error.
++	 */
++	if (ret != 2) {
+ 		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
+ 			__func__, reg);
++		if (ret >= 0)
++			ret = -EINVAL;
+ 		return ret;
+ 	}
+ 
+ 	ret = i2c_master_recv(client, val, 1);
+-	if (ret < 0)
++	/*
++	 * The only return value indicating success is 1. Anything else, even
++	 * a non-negative value, indicates something went wrong.
++	 */
++	if (ret == 1) {
++		ret = 0;
++	} else {
+ 		dev_dbg(&client->dev, "%s: i2c read error, reg: %x\n",
+ 				__func__, reg);
++		if (ret >= 0)
++			ret = -EINVAL;
++	}
+ 
+ 	return ret;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0226-media-ov5647-Add-basic-support-for-multiple-sensor-m.patch b/target/linux/bcm27xx/patches-5.10/950-0226-media-ov5647-Add-basic-support-for-multiple-sensor-m.patch
new file mode 100644
index 0000000000..be41bb4a26
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0226-media-ov5647-Add-basic-support-for-multiple-sensor-m.patch
@@ -0,0 +1,407 @@
+From c3535af52b9f641565db400aab050298b786fcf3 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 29 Jan 2020 15:30:53 +0000
+Subject: [PATCH] media: ov5647: Add basic support for multiple sensor
+ modes.
+
+Specifically:
+
+Added a structure ov5647_mode and a list of supported_modes (though no
+actual new modes as yet). The state object points to the "current mode".
+
+ov5647_enum_mbus_code, ov5647_enum_frame_size, ov5647_set_fmt and
+ov5647_get_fmt all needed upgrading to cope with multiple modes.
+
+__sensor_init (which writes all the registers) is now called by
+ov5647_stream_on (once the mode is known) rather than by
+ov5647_sensor_power.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 268 ++++++++++++++++++++++++++++---------
+ 1 file changed, 202 insertions(+), 66 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -86,13 +86,17 @@ struct regval_list {
+ 	u8 data;
+ };
+ 
++struct ov5647_mode {
++	struct v4l2_mbus_framefmt	format;
++	struct regval_list		*reg_list;
++	unsigned int			num_regs;
++};
++
+ struct ov5647 {
+ 	struct v4l2_subdev		sd;
+ 	struct media_pad		pad;
+ 	struct mutex			lock;
+-	struct v4l2_mbus_framefmt	format;
+-	unsigned int			width;
+-	unsigned int			height;
++	const struct ov5647_mode	*mode;
+ 	int				power_count;
+ 	struct clk			*xclk;
+ 	struct gpio_desc		*pwdn;
+@@ -207,6 +211,32 @@ static struct regval_list ov5647_640x480
+ 	{0x0100, 0x01},
+ };
+ 
++static struct ov5647_mode supported_modes_8bit[] = {
++	/*
++	 * Original 8-bit VGA mode
++	 * Uncentred crop (top left quarter) from 2x2 binned 1296x972 image.
++	 */
++	{
++		{
++			.code = MEDIA_BUS_FMT_SBGGR8_1X8,
++			.colorspace = V4L2_COLORSPACE_SRGB,
++			.field = V4L2_FIELD_NONE,
++			.width = 640,
++			.height = 480
++		},
++		ov5647_640x480,
++		ARRAY_SIZE(ov5647_640x480)
++	},
++	/* more modes below here... */
++};
++
++static struct ov5647_mode supported_modes_10bit[] = {
++	/* no 10-bit modes yet */
++};
++
++/* Use original 8-bit VGA mode as default. */
++#define OV5647_DEFAULT_MODE (&supported_modes_8bit[0])
++
+ static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
+ {
+ 	int ret;
+@@ -293,12 +323,55 @@ static int ov5647_set_virtual_channel(st
+ 	return ov5647_write(sd, OV5647_REG_MIPI_CTRL14, channel_id | (channel << 6));
+ }
+ 
++static int __sensor_init(struct v4l2_subdev *sd)
++{
++	int ret;
++	u8 resetval, rdval;
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++	struct ov5647 *state = to_state(sd);
++
++	ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
++	if (ret < 0)
++		return ret;
++
++	ret = ov5647_write_array(sd, state->mode->reg_list,
++				 state->mode->num_regs);
++	if (ret < 0) {
++		dev_err(&client->dev, "write sensor default regs error\n");
++		return ret;
++	}
++
++	ret = ov5647_set_virtual_channel(sd, 0);
++	if (ret < 0)
++		return ret;
++
++	ret = ov5647_read(sd, OV5647_SW_STANDBY, &resetval);
++	if (ret < 0)
++		return ret;
++
++	if (!(resetval & 0x01)) {
++		dev_err(&client->dev, "Device was in SW standby");
++		ret = ov5647_write(sd, OV5647_SW_STANDBY, 0x01);
++		if (ret < 0)
++			return ret;
++	}
++
++	return 0;
++}
++
+ static int ov5647_stream_on(struct v4l2_subdev *sd)
+ {
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
+ 	struct ov5647 *ov5647 = to_state(sd);
+ 	u8 val = MIPI_CTRL00_BUS_IDLE;
+ 	int ret;
+ 
++	ret = __sensor_init(sd);
++	if (ret < 0) {
++		dev_err(&client->dev, "sensor_init failed\n");
++		return ret;
++	}
++
+ 	if (ov5647->flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)
+ 		val |= MIPI_CTRL00_CLOCK_LANE_GATE |
+ 		       MIPI_CTRL00_LINE_SYNC_ENABLE;
+@@ -347,44 +420,6 @@ static int set_sw_standby(struct v4l2_su
+ 	return ov5647_write(sd, OV5647_SW_STANDBY, rdval);
+ }
+ 
+-static int __sensor_init(struct v4l2_subdev *sd)
+-{
+-	int ret;
+-	u8 resetval, rdval;
+-	struct i2c_client *client = v4l2_get_subdevdata(sd);
+-
+-	ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
+-	if (ret < 0)
+-		return ret;
+-
+-	ret = ov5647_write_array(sd, ov5647_640x480,
+-					ARRAY_SIZE(ov5647_640x480));
+-	if (ret < 0) {
+-		dev_err(&client->dev, "write sensor default regs error\n");
+-		return ret;
+-	}
+-
+-	ret = ov5647_set_virtual_channel(sd, 0);
+-	if (ret < 0)
+-		return ret;
+-
+-	ret = ov5647_read(sd, OV5647_SW_STANDBY, &resetval);
+-	if (ret < 0)
+-		return ret;
+-
+-	if (!(resetval & 0x01)) {
+-		dev_err(&client->dev, "Device was in SW standby");
+-		ret = ov5647_write(sd, OV5647_SW_STANDBY, 0x01);
+-		if (ret < 0)
+-			return ret;
+-	}
+-
+-	/*
+-	 * stream off to make the clock lane into LP-11 state.
+-	 */
+-	return ov5647_stream_off(sd);
+-}
+-
+ static int ov5647_sensor_power(struct v4l2_subdev *sd, int on)
+ {
+ 	int ret = 0;
+@@ -408,7 +443,7 @@ static int ov5647_sensor_power(struct v4
+ 		}
+ 
+ 		ret = ov5647_write_array(sd, sensor_oe_enable_regs,
+-				ARRAY_SIZE(sensor_oe_enable_regs));
++					 ARRAY_SIZE(sensor_oe_enable_regs));
+ 		if (ret < 0) {
+ 			clk_disable_unprepare(ov5647->xclk);
+ 			dev_err(&client->dev,
+@@ -416,7 +451,10 @@ static int ov5647_sensor_power(struct v4
+ 			goto out;
+ 		}
+ 
+-		ret = __sensor_init(sd);
++		/*
++		 * Ensure streaming off to make clock lane go into LP-11 state.
++		 */
++		ret = ov5647_stream_off(sd);
+ 		if (ret < 0) {
+ 			clk_disable_unprepare(ov5647->xclk);
+ 			dev_err(&client->dev,
+@@ -427,7 +465,7 @@ static int ov5647_sensor_power(struct v4
+ 		dev_dbg(&client->dev, "OV5647 power off\n");
+ 
+ 		ret = ov5647_write_array(sd, sensor_oe_disable_regs,
+-				ARRAY_SIZE(sensor_oe_disable_regs));
++					 ARRAY_SIZE(sensor_oe_disable_regs));
+ 
+ 		if (ret < 0)
+ 			dev_dbg(&client->dev, "disable oe failed\n");
+@@ -489,10 +527,19 @@ static const struct v4l2_subdev_core_ops
+ 
+ static int ov5647_s_stream(struct v4l2_subdev *sd, int enable)
+ {
++	struct ov5647 *state = to_state(sd);
++	int ret = 0;
++
++	mutex_lock(&state->lock);
++
+ 	if (enable)
+-		return ov5647_stream_on(sd);
++		ret = ov5647_stream_on(sd);
+ 	else
+-		return ov5647_stream_off(sd);
++		ret = ov5647_stream_off(sd);
++
++	mutex_unlock(&state->lock);
++
++	return ret;
+ }
+ 
+ static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = {
+@@ -503,38 +550,127 @@ static int ov5647_enum_mbus_code(struct
+ 				struct v4l2_subdev_pad_config *cfg,
+ 				struct v4l2_subdev_mbus_code_enum *code)
+ {
+-	if (code->index > 0)
++	if (code->index == 0 && ARRAY_SIZE(supported_modes_8bit))
++		code->code = MEDIA_BUS_FMT_SBGGR8_1X8;
++	else if (code->index == 0 && ARRAY_SIZE(supported_modes_8bit) == 0 &&
++		 ARRAY_SIZE(supported_modes_10bit))
++		code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
++	else if (code->index == 1 && ARRAY_SIZE(supported_modes_8bit) &&
++		 ARRAY_SIZE(supported_modes_10bit))
++		code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
++	else
+ 		return -EINVAL;
+ 
+-	code->code = MEDIA_BUS_FMT_SBGGR8_1X8;
++	return 0;
++}
++
++static int ov5647_enum_frame_size(struct v4l2_subdev *sd,
++				  struct v4l2_subdev_pad_config *cfg,
++				  struct v4l2_subdev_frame_size_enum *fse)
++{
++	struct ov5647_mode *mode = NULL;
++
++	if (fse->code == MEDIA_BUS_FMT_SBGGR8_1X8) {
++		if (fse->index >= ARRAY_SIZE(supported_modes_8bit))
++			return -EINVAL;
++		mode = &supported_modes_8bit[fse->index];
++	} else if (fse->code == MEDIA_BUS_FMT_SBGGR10_1X10) {
++		if (fse->index >= ARRAY_SIZE(supported_modes_10bit))
++			return -EINVAL;
++		mode = &supported_modes_10bit[fse->index];
++	} else {
++		return -EINVAL;
++	}
++
++	fse->min_width = mode->format.width;
++	fse->max_width = fse->min_width;
++	fse->min_height = mode->format.height;
++	fse->max_height = fse->min_height;
++
++	return 0;
++}
++
++static int ov5647_set_fmt(struct v4l2_subdev *sd,
++			  struct v4l2_subdev_pad_config *cfg,
++			  struct v4l2_subdev_format *format)
++{
++	struct v4l2_mbus_framefmt *fmt = &format->format;
++	struct ov5647 *state = to_state(sd);
++	struct v4l2_mbus_framefmt *framefmt;
++	const struct ov5647_mode *mode_8bit, *mode_10bit, *mode = NULL;
++
++	if (format->pad != 0)
++		return -EINVAL;
++
++	mutex_lock(&state->lock);
++
++	/*
++	 * Try to respect any given pixel format, otherwise try for a 10-bit
++	 * mode.
++	 */
++	mode_8bit = v4l2_find_nearest_size(supported_modes_8bit,
++					   ARRAY_SIZE(supported_modes_8bit),
++					   format.width, format.height,
++					   format->format.width,
++					   format->format.height);
++	mode_10bit = v4l2_find_nearest_size(supported_modes_10bit,
++					    ARRAY_SIZE(supported_modes_10bit),
++					    format.width, format.height,
++					    format->format.width,
++					    format->format.height);
++	if (format->format.code == MEDIA_BUS_FMT_SBGGR8_1X8 && mode_8bit)
++		mode = mode_8bit;
++	else if (format->format.code == MEDIA_BUS_FMT_SBGGR10_1X10 &&
++		 mode_10bit)
++		mode = mode_10bit;
++	else if (mode_10bit)
++		mode = mode_10bit;
++	else
++		mode = mode_8bit;
++
++	if (!mode)
++		return -EINVAL;
++
++	*fmt = mode->format;
++	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
++		framefmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
++		*framefmt = format->format;
++	} else {
++		state->mode = mode;
++	}
++
++	mutex_unlock(&state->lock);
+ 
+ 	return 0;
+ }
+ 
+-static int ov5647_set_get_fmt(struct v4l2_subdev *sd,
+-			      struct v4l2_subdev_pad_config *cfg,
+-			      struct v4l2_subdev_format *format)
++static int ov5647_get_fmt(struct v4l2_subdev *sd,
++			  struct v4l2_subdev_pad_config *cfg,
++			  struct v4l2_subdev_format *format)
+ {
+ 	struct v4l2_mbus_framefmt *fmt = &format->format;
++	struct ov5647 *state = to_state(sd);
+ 
+ 	if (format->pad != 0)
+ 		return -EINVAL;
+ 
+-	/* Only one format is supported, so return that */
+-	memset(fmt, 0, sizeof(*fmt));
+-	fmt->code = MEDIA_BUS_FMT_SBGGR8_1X8;
+-	fmt->colorspace = V4L2_COLORSPACE_SRGB;
+-	fmt->field = V4L2_FIELD_NONE;
+-	fmt->width = 640;
+-	fmt->height = 480;
++	mutex_lock(&state->lock);
++
++	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
++		*fmt = *v4l2_subdev_get_try_format(sd, cfg, format->pad);
++	else
++		*fmt = state->mode->format;
++
++	mutex_unlock(&state->lock);
+ 
+ 	return 0;
+ }
+ 
+ static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = {
+ 	.enum_mbus_code = ov5647_enum_mbus_code,
+-	.set_fmt =	  ov5647_set_get_fmt,
+-	.get_fmt =	  ov5647_set_get_fmt,
++	.set_fmt =	  ov5647_set_fmt,
++	.get_fmt =	  ov5647_get_fmt,
++	.enum_frame_size = ov5647_enum_frame_size,
+ };
+ 
+ static const struct v4l2_subdev_ops ov5647_subdev_ops = {
+@@ -580,18 +716,15 @@ static int ov5647_open(struct v4l2_subde
+ 				v4l2_subdev_get_try_format(sd, fh->pad, 0);
+ 	struct v4l2_rect *crop =
+ 				v4l2_subdev_get_try_crop(sd, fh->pad, 0);
++	struct ov5647 *state = to_state(sd);
+ 
+ 	crop->left = OV5647_COLUMN_START_DEF;
+ 	crop->top = OV5647_ROW_START_DEF;
+ 	crop->width = OV5647_WINDOW_WIDTH_DEF;
+ 	crop->height = OV5647_WINDOW_HEIGHT_DEF;
+ 
+-	format->code = MEDIA_BUS_FMT_SBGGR8_1X8;
+-
+-	format->width = OV5647_WINDOW_WIDTH_DEF;
+-	format->height = OV5647_WINDOW_HEIGHT_DEF;
+-	format->field = V4L2_FIELD_NONE;
+-	format->colorspace = V4L2_COLORSPACE_SRGB;
++	/* Set the default format to the same as the sensor. */
++	*format = state->mode->format;
+ 
+ 	return 0;
+ }
+@@ -660,6 +793,9 @@ static int ov5647_probe(struct i2c_clien
+ 
+ 	mutex_init(&sensor->lock);
+ 
++	/* Set the default mode before we init the subdev */
++	sensor->mode = OV5647_DEFAULT_MODE;
++
+ 	sd = &sensor->sd;
+ 	v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops);
+ 	sensor->sd.internal_ops = &ov5647_subdev_internal_ops;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0227-media-ov5647-Add-V4L2-controls-for-analogue-gain-exp.patch b/target/linux/bcm27xx/patches-5.10/950-0227-media-ov5647-Add-V4L2-controls-for-analogue-gain-exp.patch
new file mode 100644
index 0000000000..583edace3a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0227-media-ov5647-Add-V4L2-controls-for-analogue-gain-exp.patch
@@ -0,0 +1,277 @@
+From 0c212ccaa2e790de8eb43b2766767f2713f93915 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 29 Jan 2020 15:31:23 +0000
+Subject: [PATCH] media: ov5647: Add V4L2 controls for analogue gain,
+ exposure and AWB
+
+Added basic v4l2_ctrl_handler infrastructure (there was none
+previously).
+
+Added controls to let AWB/AEC/AGC run in the sensor's auto mode or
+manually. Also controls to set exposure (in lines) and analogue gain
+(as a register code) from user code.
+
+Also delete registers (just the one) from the VGA mode register set
+that are now controlled by the new V4L2 controls.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 175 ++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 174 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -29,11 +29,13 @@
+ #include <linux/of_graph.h>
+ #include <linux/slab.h>
+ #include <linux/videodev2.h>
++#include <media/v4l2-ctrls.h>
+ #include <media/v4l2-device.h>
+ #include <media/v4l2-fwnode.h>
+ #include <media/v4l2-image-sizes.h>
+ #include <media/v4l2-mediabus.h>
+ 
++
+ #define SENSOR_NAME "ov5647"
+ 
+ /*
+@@ -53,9 +55,16 @@
+ #define OV5647_REG_CHIPID_H		0x300A
+ #define OV5647_REG_CHIPID_L		0x300B
+ #define OV5640_REG_PAD_OUT		0x300D
++#define OV5647_REG_EXP_HI		0x3500
++#define OV5647_REG_EXP_MID		0x3501
++#define OV5647_REG_EXP_LO		0x3502
++#define OV5647_REG_AEC_AGC		0x3503
++#define OV5647_REG_GAIN_HI		0x350A
++#define OV5647_REG_GAIN_LO		0x350B
+ #define OV5647_REG_FRAME_OFF_NUMBER	0x4202
+ #define OV5647_REG_MIPI_CTRL00		0x4800
+ #define OV5647_REG_MIPI_CTRL14		0x4814
++#define OV5647_REG_AWB			0x5001
+ 
+ #define REG_TERM 0xfffe
+ #define VAL_TERM 0xfe
+@@ -101,6 +110,7 @@ struct ov5647 {
+ 	struct clk			*xclk;
+ 	struct gpio_desc		*pwdn;
+ 	unsigned int			flags;
++	struct v4l2_ctrl_handler	ctrls;
+ };
+ 
+ static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
+@@ -135,7 +145,6 @@ static struct regval_list ov5647_640x480
+ 	{0x3612, 0x59},
+ 	{0x3618, 0x00},
+ 	{0x5000, 0x06},
+-	{0x5001, 0x01},
+ 	{0x5002, 0x41},
+ 	{0x5003, 0x08},
+ 	{0x5a00, 0x08},
+@@ -372,6 +381,11 @@ static int ov5647_stream_on(struct v4l2_
+ 		return ret;
+ 	}
+ 
++	/* Apply customized values from user when stream starts */
++	ret =  __v4l2_ctrl_handler_setup(sd->ctrl_handler);
++	if (ret)
++		return ret;
++
+ 	if (ov5647->flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)
+ 		val |= MIPI_CTRL00_CLOCK_LANE_GATE |
+ 		       MIPI_CTRL00_LINE_SYNC_ENABLE;
+@@ -753,6 +767,120 @@ static int ov5647_parse_dt(struct device
+ 	return ret;
+ }
+ 
++static int ov5647_s_auto_white_balance(struct v4l2_subdev *sd, u32 val)
++{
++	/* non-zero turns on AWB */
++	return ov5647_write(sd, OV5647_REG_AWB, val ? 1 : 0);
++}
++
++static int ov5647_s_autogain(struct v4l2_subdev *sd, u32 val)
++{
++	int ret;
++	u8 reg;
++
++	/* non-zero turns on AGC by clearing bit 1 */
++	ret = ov5647_read(sd, OV5647_REG_AEC_AGC, &reg);
++	if (ret == 0)
++		ret = ov5647_write(sd, OV5647_REG_AEC_AGC,
++				   val ? reg & ~2 : reg | 2);
++
++	return ret;
++}
++
++static int ov5647_s_exposure_auto(struct v4l2_subdev *sd, u32 val)
++{
++	int ret;
++	u8 reg;
++
++	/* Everything except V4L2_EXPOSURE_MANUAL turns on AEC by
++	 * clearing bit 0
++	 */
++	ret = ov5647_read(sd, OV5647_REG_AEC_AGC, &reg);
++	if (ret == 0)
++		ret = ov5647_write(sd, OV5647_REG_AEC_AGC,
++				   val == V4L2_EXPOSURE_MANUAL ?
++				   reg | 1 : reg & ~1);
++
++	return ret;
++}
++
++static int ov5647_s_analogue_gain(struct v4l2_subdev *sd, u32 val)
++{
++	int ret;
++
++	/* 10 bits of gain, 2 in the high register */
++	ret = ov5647_write(sd, OV5647_REG_GAIN_HI, (val >> 8) & 3);
++	if (ret == 0)
++		ret = ov5647_write(sd, OV5647_REG_GAIN_LO, val & 0xff);
++
++	return ret;
++}
++
++static int ov5647_s_exposure(struct v4l2_subdev *sd, u32 val)
++{
++	int ret;
++
++	/* Sensor has 20 bits, but the bottom 4 bits are fractions of a line
++	 * which we leave as zero (and don't receive in "val").
++	 */
++	ret = ov5647_write(sd, OV5647_REG_EXP_HI, (val >> 12) & 0xf);
++	if (ret == 0)
++		ov5647_write(sd, OV5647_REG_EXP_MID, (val >> 4) & 0xff);
++	if (ret == 0)
++		ov5647_write(sd, OV5647_REG_EXP_LO, (val & 0xf) << 4);
++
++	return ret;
++}
++
++static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct ov5647 *state = container_of(ctrl->handler,
++					     struct ov5647, ctrls);
++	struct v4l2_subdev *sd = &state->sd;
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++	int ret = 0;
++
++	/* v4l2_ctrl_lock() locks our own mutex */
++
++	/*
++	 * If the device is not powered up by the host driver do
++	 * not apply any controls to H/W at this time. Instead
++	 * the controls will be restored right after power-up.
++	 */
++	if (state->power_count == 0)
++		return 0;
++
++	switch (ctrl->id) {
++	case V4L2_CID_AUTO_WHITE_BALANCE:
++		ret = ov5647_s_auto_white_balance(sd, ctrl->val);
++		break;
++	case V4L2_CID_AUTOGAIN:
++		ret = ov5647_s_autogain(sd, ctrl->val);
++		break;
++	case V4L2_CID_EXPOSURE_AUTO:
++		ret = ov5647_s_exposure_auto(sd, ctrl->val);
++		break;
++	case V4L2_CID_ANALOGUE_GAIN:
++		ret = ov5647_s_analogue_gain(sd, ctrl->val);
++		break;
++	case V4L2_CID_EXPOSURE:
++		ret = ov5647_s_exposure(sd, ctrl->val);
++		break;
++	default:
++		dev_info(&client->dev,
++			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
++			 ctrl->id, ctrl->val);
++		ret = -EINVAL;
++		break;
++	}
++
++	return ret;
++}
++
++static const struct v4l2_ctrl_ops ov5647_ctrl_ops = {
++	.s_ctrl = ov5647_s_ctrl,
++};
++
+ static int ov5647_probe(struct i2c_client *client)
+ {
+ 	struct device *dev = &client->dev;
+@@ -761,6 +889,7 @@ static int ov5647_probe(struct i2c_clien
+ 	struct v4l2_subdev *sd;
+ 	struct device_node *np = client->dev.of_node;
+ 	u32 xclk_freq;
++	struct v4l2_ctrl *ctrl;
+ 
+ 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+ 	if (!sensor)
+@@ -793,6 +922,48 @@ static int ov5647_probe(struct i2c_clien
+ 
+ 	mutex_init(&sensor->lock);
+ 
++	/* Initialise controls. */
++	v4l2_ctrl_handler_init(&sensor->ctrls, 3);
++	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++			  V4L2_CID_AUTOGAIN,
++			  0,  /* min */
++			  1,  /* max */
++			  1,  /* step */
++			  1); /* default */
++	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++			  V4L2_CID_AUTO_WHITE_BALANCE,
++			  0,  /* min */
++			  1,  /* max */
++			  1,  /* step */
++			  1); /* default */
++	v4l2_ctrl_new_std_menu(&sensor->ctrls, &ov5647_ctrl_ops,
++			       V4L2_CID_EXPOSURE_AUTO,
++			       V4L2_EXPOSURE_MANUAL,  /* max */
++			       0,                     /* skip_mask */
++			       V4L2_EXPOSURE_AUTO);   /* default */
++	ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++				 V4L2_CID_EXPOSURE,
++				 4,     /* min lines */
++				 65535, /* max lines (4+8+4 bits)*/
++				 1,     /* step */
++				 1000); /* default number of lines */
++	ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
++	ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++				 V4L2_CID_ANALOGUE_GAIN,
++				 16,   /* min, 16 = 1.0x */
++				 1023, /* max (10 bits) */
++				 1,    /* step */
++				 32);  /* default, 32 = 2.0x */
++	ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
++
++	if (sensor->ctrls.error) {
++		ret = sensor->ctrls.error;
++		dev_err(&client->dev, "%s control init failed (%d)\n",
++			__func__, ret);
++		goto error;
++	}
++	sensor->sd.ctrl_handler = &sensor->ctrls;
++
+ 	/* Set the default mode before we init the subdev */
+ 	sensor->mode = OV5647_DEFAULT_MODE;
+ 
+@@ -828,6 +999,7 @@ static int ov5647_probe(struct i2c_clien
+ error:
+ 	media_entity_cleanup(&sd->entity);
+ mutex_remove:
++	v4l2_ctrl_handler_free(&sensor->ctrls);
+ 	mutex_destroy(&sensor->lock);
+ 	return ret;
+ }
+@@ -839,6 +1011,7 @@ static int ov5647_remove(struct i2c_clie
+ 
+ 	v4l2_async_unregister_subdev(&ov5647->sd);
+ 	media_entity_cleanup(&ov5647->sd.entity);
++	v4l2_ctrl_handler_free(&ov5647->ctrls);
+ 	v4l2_device_unregister_subdev(sd);
+ 	mutex_destroy(&ov5647->lock);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0228-media-ov5647-Add-extra-10-bit-sensor-modes.patch b/target/linux/bcm27xx/patches-5.10/950-0228-media-ov5647-Add-extra-10-bit-sensor-modes.patch
new file mode 100644
index 0000000000..32b2375a48
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0228-media-ov5647-Add-extra-10-bit-sensor-modes.patch
@@ -0,0 +1,549 @@
+From 004f4065edbb817a54121937514eb94159ecce69 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 29 Jan 2020 15:31:28 +0000
+Subject: [PATCH] media: ov5647: Add extra 10-bit sensor modes.
+
+The 8-bit VGA mode remains, we add the following 10-bit modes:
+
+Mode 0: 2592x1944 full resolution.
+
+Mode 1: 1920x1080 full resolution, but centre-cropped.
+(This mode achieves 30fps, mode 0 does not.)
+
+Mode 2: 1296x972 full field-of-view 2x2 binned mode.
+
+Mode 3: VGA full field of view mode.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 463 ++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 452 insertions(+), 11 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -111,6 +111,7 @@ struct ov5647 {
+ 	struct gpio_desc		*pwdn;
+ 	unsigned int			flags;
+ 	struct v4l2_ctrl_handler	ctrls;
++	bool				write_mode_regs;
+ };
+ 
+ static inline struct ov5647 *to_state(struct v4l2_subdev *sd)
+@@ -130,7 +131,7 @@ static struct regval_list sensor_oe_enab
+ 	{0x3002, 0xe4},
+ };
+ 
+-static struct regval_list ov5647_640x480[] = {
++static struct regval_list ov5647_640x480_8bit[] = {
+ 	{0x0100, 0x00},
+ 	{0x0103, 0x01},
+ 	{0x3034, 0x08},
+@@ -220,9 +221,378 @@ static struct regval_list ov5647_640x480
+ 	{0x0100, 0x01},
+ };
+ 
++static struct regval_list ov5647_2592x1944_10bit[] = {
++	{0x0100, 0x00},
++	{0x0103, 0x01},
++	{0x3034, 0x1a},
++	{0x3035, 0x21},
++	{0x3036, 0x69},
++	{0x303c, 0x11},
++	{0x3106, 0xf5},
++	{0x3821, 0x06},
++	{0x3820, 0x00},
++	{0x3827, 0xec},
++	{0x370c, 0x03},
++	{0x3612, 0x5b},
++	{0x3618, 0x04},
++	{0x5000, 0x06},
++	{0x5002, 0x41},
++	{0x5003, 0x08},
++	{0x5a00, 0x08},
++	{0x3000, 0x00},
++	{0x3001, 0x00},
++	{0x3002, 0x00},
++	{0x3016, 0x08},
++	{0x3017, 0xe0},
++	{0x3018, 0x44},
++	{0x301c, 0xf8},
++	{0x301d, 0xf0},
++	{0x3a18, 0x00},
++	{0x3a19, 0xf8},
++	{0x3c01, 0x80},
++	{0x3b07, 0x0c},
++	{0x380c, 0x0b},
++	{0x380d, 0x1c},
++	{0x380e, 0x07},
++	{0x380f, 0xb0},
++	{0x3814, 0x11},
++	{0x3815, 0x11},
++	{0x3708, 0x64},
++	{0x3709, 0x12},
++	{0x3808, 0x0a},
++	{0x3809, 0x20},
++	{0x380a, 0x07},
++	{0x380b, 0x98},
++	{0x3800, 0x00},
++	{0x3801, 0x00},
++	{0x3802, 0x00},
++	{0x3803, 0x00},
++	{0x3804, 0x0a},
++	{0x3805, 0x3f},
++	{0x3806, 0x07},
++	{0x3807, 0xa3},
++	{0x3811, 0x10},
++	{0x3813, 0x06},
++	{0x3630, 0x2e},
++	{0x3632, 0xe2},
++	{0x3633, 0x23},
++	{0x3634, 0x44},
++	{0x3636, 0x06},
++	{0x3620, 0x64},
++	{0x3621, 0xe0},
++	{0x3600, 0x37},
++	{0x3704, 0xa0},
++	{0x3703, 0x5a},
++	{0x3715, 0x78},
++	{0x3717, 0x01},
++	{0x3731, 0x02},
++	{0x370b, 0x60},
++	{0x3705, 0x1a},
++	{0x3f05, 0x02},
++	{0x3f06, 0x10},
++	{0x3f01, 0x0a},
++	{0x3a08, 0x01},
++	{0x3a09, 0x28},
++	{0x3a0a, 0x00},
++	{0x3a0b, 0xf6},
++	{0x3a0d, 0x08},
++	{0x3a0e, 0x06},
++	{0x3a0f, 0x58},
++	{0x3a10, 0x50},
++	{0x3a1b, 0x58},
++	{0x3a1e, 0x50},
++	{0x3a11, 0x60},
++	{0x3a1f, 0x28},
++	{0x4001, 0x02},
++	{0x4004, 0x04},
++	{0x4000, 0x09},
++	{0x4837, 0x19},
++	{0x4800, 0x24},
++	{0x3503, 0x03},
++	{0x0100, 0x01},
++};
++
++static struct regval_list ov5647_1080p30_10bit[] = {
++	{0x0100, 0x00},
++	{0x0103, 0x01},
++	{0x3034, 0x1a},
++	{0x3035, 0x21},
++	{0x3036, 0x62},
++	{0x303c, 0x11},
++	{0x3106, 0xf5},
++	{0x3821, 0x06},
++	{0x3820, 0x00},
++	{0x3827, 0xec},
++	{0x370c, 0x03},
++	{0x3612, 0x5b},
++	{0x3618, 0x04},
++	{0x5000, 0x06},
++	{0x5002, 0x41},
++	{0x5003, 0x08},
++	{0x5a00, 0x08},
++	{0x3000, 0x00},
++	{0x3001, 0x00},
++	{0x3002, 0x00},
++	{0x3016, 0x08},
++	{0x3017, 0xe0},
++	{0x3018, 0x44},
++	{0x301c, 0xf8},
++	{0x301d, 0xf0},
++	{0x3a18, 0x00},
++	{0x3a19, 0xf8},
++	{0x3c01, 0x80},
++	{0x3b07, 0x0c},
++	{0x380c, 0x09},
++	{0x380d, 0x70},
++	{0x380e, 0x04},
++	{0x380f, 0x50},
++	{0x3814, 0x11},
++	{0x3815, 0x11},
++	{0x3708, 0x64},
++	{0x3709, 0x12},
++	{0x3808, 0x07},
++	{0x3809, 0x80},
++	{0x380a, 0x04},
++	{0x380b, 0x38},
++	{0x3800, 0x01},
++	{0x3801, 0x5c},
++	{0x3802, 0x01},
++	{0x3803, 0xb2},
++	{0x3804, 0x08},
++	{0x3805, 0xe3},
++	{0x3806, 0x05},
++	{0x3807, 0xf1},
++	{0x3811, 0x04},
++	{0x3813, 0x02},
++	{0x3630, 0x2e},
++	{0x3632, 0xe2},
++	{0x3633, 0x23},
++	{0x3634, 0x44},
++	{0x3636, 0x06},
++	{0x3620, 0x64},
++	{0x3621, 0xe0},
++	{0x3600, 0x37},
++	{0x3704, 0xa0},
++	{0x3703, 0x5a},
++	{0x3715, 0x78},
++	{0x3717, 0x01},
++	{0x3731, 0x02},
++	{0x370b, 0x60},
++	{0x3705, 0x1a},
++	{0x3f05, 0x02},
++	{0x3f06, 0x10},
++	{0x3f01, 0x0a},
++	{0x3a08, 0x01},
++	{0x3a09, 0x4b},
++	{0x3a0a, 0x01},
++	{0x3a0b, 0x13},
++	{0x3a0d, 0x04},
++	{0x3a0e, 0x03},
++	{0x3a0f, 0x58},
++	{0x3a10, 0x50},
++	{0x3a1b, 0x58},
++	{0x3a1e, 0x50},
++	{0x3a11, 0x60},
++	{0x3a1f, 0x28},
++	{0x4001, 0x02},
++	{0x4004, 0x04},
++	{0x4000, 0x09},
++	{0x4837, 0x19},
++	{0x4800, 0x34},
++	{0x3503, 0x03},
++	{0x0100, 0x01},
++};
++
++static struct regval_list ov5647_2x2binned_10bit[] = {
++	{0x0100, 0x00},
++	{0x0103, 0x01},
++	{0x3034, 0x1A},
++	{0x3035, 0x21},
++	{0x3036, 0x62},
++	{0x303C, 0x11},
++	{0x3106, 0xF5},
++	{0x3827, 0xEC},
++	{0x370C, 0x03},
++	{0x3612, 0x59},
++	{0x3618, 0x00},
++	{0x5000, 0x06},
++	{0x5002, 0x41},
++	{0x5003, 0x08},
++	{0x5A00, 0x08},
++	{0x3000, 0x00},
++	{0x3001, 0x00},
++	{0x3002, 0x00},
++	{0x3016, 0x08},
++	{0x3017, 0xE0},
++	{0x3018, 0x44},
++	{0x301C, 0xF8},
++	{0x301D, 0xF0},
++	{0x3A18, 0x00},
++	{0x3A19, 0xF8},
++	{0x3C01, 0x80},
++	{0x3B07, 0x0C},
++	{0x3800, 0x00},
++	{0x3801, 0x00},
++	{0x3802, 0x00},
++	{0x3803, 0x00},
++	{0x3804, 0x0A},
++	{0x3805, 0x3F},
++	{0x3806, 0x07},
++	{0x3807, 0xA3},
++	{0x3808, 0x05},
++	{0x3809, 0x10},
++	{0x380A, 0x03},
++	{0x380B, 0xCC},
++	{0x380C, 0x07},
++	{0x380D, 0x68},
++	{0x3811, 0x0c},
++	{0x3813, 0x06},
++	{0x3814, 0x31},
++	{0x3815, 0x31},
++	{0x3630, 0x2E},
++	{0x3632, 0xE2},
++	{0x3633, 0x23},
++	{0x3634, 0x44},
++	{0x3636, 0x06},
++	{0x3620, 0x64},
++	{0x3621, 0xE0},
++	{0x3600, 0x37},
++	{0x3704, 0xA0},
++	{0x3703, 0x5A},
++	{0x3715, 0x78},
++	{0x3717, 0x01},
++	{0x3731, 0x02},
++	{0x370B, 0x60},
++	{0x3705, 0x1A},
++	{0x3F05, 0x02},
++	{0x3F06, 0x10},
++	{0x3F01, 0x0A},
++	{0x3A08, 0x01},
++	{0x3A09, 0x28},
++	{0x3A0A, 0x00},
++	{0x3A0B, 0xF6},
++	{0x3A0D, 0x08},
++	{0x3A0E, 0x06},
++	{0x3A0F, 0x58},
++	{0x3A10, 0x50},
++	{0x3A1B, 0x58},
++	{0x3A1E, 0x50},
++	{0x3A11, 0x60},
++	{0x3A1F, 0x28},
++	{0x4001, 0x02},
++	{0x4004, 0x04},
++	{0x4000, 0x09},
++	{0x4837, 0x16},
++	{0x4800, 0x24},
++	{0x3503, 0x03},
++	{0x3820, 0x41},
++	{0x3821, 0x07},
++	{0x380E, 0x05},
++	{0x380F, 0x9B},
++	{0x350A, 0x00},
++	{0x350B, 0x10},
++	{0x3500, 0x00},
++	{0x3501, 0x1A},
++	{0x3502, 0xF0},
++	{0x3212, 0xA0},
++	{0x0100, 0x01},
++};
++
++static struct regval_list ov5647_640x480_10bit[] = {
++	{0x0100, 0x00},
++	{0x0103, 0x01},
++	{0x3035, 0x11},
++	{0x3036, 0x46},
++	{0x303c, 0x11},
++	{0x3821, 0x07},
++	{0x3820, 0x41},
++	{0x370c, 0x03},
++	{0x3612, 0x59},
++	{0x3618, 0x00},
++	{0x5000, 0x06},
++	{0x5003, 0x08},
++	{0x5a00, 0x08},
++	{0x3000, 0xff},
++	{0x3001, 0xff},
++	{0x3002, 0xff},
++	{0x301d, 0xf0},
++	{0x3a18, 0x00},
++	{0x3a19, 0xf8},
++	{0x3c01, 0x80},
++	{0x3b07, 0x0c},
++	{0x380c, 0x07},
++	{0x380d, 0x3c},
++	{0x380e, 0x01},
++	{0x380f, 0xf8},
++	{0x3814, 0x35},
++	{0x3815, 0x35},
++	{0x3708, 0x64},
++	{0x3709, 0x52},
++	{0x3808, 0x02},
++	{0x3809, 0x80},
++	{0x380a, 0x01},
++	{0x380b, 0xe0},
++	{0x3800, 0x00},
++	{0x3801, 0x10},
++	{0x3802, 0x00},
++	{0x3803, 0x00},
++	{0x3804, 0x0a},
++	{0x3805, 0x2f},
++	{0x3806, 0x07},
++	{0x3807, 0x9f},
++	{0x3630, 0x2e},
++	{0x3632, 0xe2},
++	{0x3633, 0x23},
++	{0x3634, 0x44},
++	{0x3620, 0x64},
++	{0x3621, 0xe0},
++	{0x3600, 0x37},
++	{0x3704, 0xa0},
++	{0x3703, 0x5a},
++	{0x3715, 0x78},
++	{0x3717, 0x01},
++	{0x3731, 0x02},
++	{0x370b, 0x60},
++	{0x3705, 0x1a},
++	{0x3f05, 0x02},
++	{0x3f06, 0x10},
++	{0x3f01, 0x0a},
++	{0x3a08, 0x01},
++	{0x3a09, 0x2e},
++	{0x3a0a, 0x00},
++	{0x3a0b, 0xfb},
++	{0x3a0d, 0x02},
++	{0x3a0e, 0x01},
++	{0x3a0f, 0x58},
++	{0x3a10, 0x50},
++	{0x3a1b, 0x58},
++	{0x3a1e, 0x50},
++	{0x3a11, 0x60},
++	{0x3a1f, 0x28},
++	{0x4001, 0x02},
++	{0x4004, 0x02},
++	{0x4000, 0x09},
++	{0x3000, 0x00},
++	{0x3001, 0x00},
++	{0x3002, 0x00},
++	{0x3017, 0xe0},
++	{0x301c, 0xfc},
++	{0x3636, 0x06},
++	{0x3016, 0x08},
++	{0x3827, 0xec},
++	{0x3018, 0x44},
++	{0x3035, 0x21},
++	{0x3106, 0xf5},
++	{0x3034, 0x1a},
++	{0x301c, 0xf8},
++	{0x4800, 0x34},
++	{0x3503, 0x03},
++	{0x0100, 0x01},
++};
++
+ static struct ov5647_mode supported_modes_8bit[] = {
+ 	/*
+-	 * Original 8-bit VGA mode
++	 * MODE 0: Original 8-bit VGA mode.
+ 	 * Uncentred crop (top left quarter) from 2x2 binned 1296x972 image.
+ 	 */
+ 	{
+@@ -233,14 +603,70 @@ static struct ov5647_mode supported_mode
+ 			.width = 640,
+ 			.height = 480
+ 		},
+-		ov5647_640x480,
+-		ARRAY_SIZE(ov5647_640x480)
++		ov5647_640x480_8bit,
++		ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+-	/* more modes below here... */
+ };
+ 
+ static struct ov5647_mode supported_modes_10bit[] = {
+-	/* no 10-bit modes yet */
++	/*
++	 * MODE 0: 2592x1944 full resolution full FOV 10-bit mode.
++	 */
++	{
++		{
++			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
++			.colorspace = V4L2_COLORSPACE_SRGB,
++			.field = V4L2_FIELD_NONE,
++			.width = 2592,
++			.height = 1944
++		},
++		ov5647_2592x1944_10bit,
++		ARRAY_SIZE(ov5647_2592x1944_10bit)
++	},
++	/*
++	 * MODE 1: 1080p30 10-bit mode.
++	 * Full resolution centre-cropped down to 1080p.
++	 */
++	{
++		{
++			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
++			.colorspace = V4L2_COLORSPACE_SRGB,
++			.field = V4L2_FIELD_NONE,
++			.width = 1920,
++			.height = 1080
++		},
++		ov5647_1080p30_10bit,
++		ARRAY_SIZE(ov5647_1080p30_10bit)
++	},
++	/*
++	 * MODE 2: 2x2 binned full FOV 10-bit mode.
++	 */
++	{
++		{
++			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
++			.colorspace = V4L2_COLORSPACE_SRGB,
++			.field = V4L2_FIELD_NONE,
++			.width = 1296,
++			.height = 972
++		},
++		ov5647_2x2binned_10bit,
++		ARRAY_SIZE(ov5647_2x2binned_10bit)
++	},
++	/*
++	 * MODE 3: 10-bit VGA full FOV mode 60fps.
++	 * 2x2 binned and subsampled down to VGA.
++	 */
++	{
++		{
++			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
++			.colorspace = V4L2_COLORSPACE_SRGB,
++			.field = V4L2_FIELD_NONE,
++			.width = 640,
++			.height = 480
++		},
++		ov5647_640x480_10bit,
++		ARRAY_SIZE(ov5647_640x480_10bit)
++	},
+ };
+ 
+ /* Use original 8-bit VGA mode as default. */
+@@ -343,11 +769,14 @@ static int __sensor_init(struct v4l2_sub
+ 	if (ret < 0)
+ 		return ret;
+ 
+-	ret = ov5647_write_array(sd, state->mode->reg_list,
+-				 state->mode->num_regs);
+-	if (ret < 0) {
+-		dev_err(&client->dev, "write sensor default regs error\n");
+-		return ret;
++	if (state->write_mode_regs) {
++		ret = ov5647_write_array(sd, state->mode->reg_list,
++					 state->mode->num_regs);
++		if (ret < 0) {
++			dev_err(&client->dev, "write sensor default regs error\n");
++			return ret;
++		}
++		state->write_mode_regs = false;
+ 	}
+ 
+ 	ret = ov5647_set_virtual_channel(sd, 0);
+@@ -475,6 +904,9 @@ static int ov5647_sensor_power(struct v4
+ 				"Camera not available, check Power\n");
+ 			goto out;
+ 		}
++
++		/* Write out the register set over I2C on stream-on. */
++		ov5647->write_mode_regs = true;
+ 	} else if (!on && ov5647->power_count == 1) {
+ 		dev_dbg(&client->dev, "OV5647 power off\n");
+ 
+@@ -650,6 +1082,12 @@ static int ov5647_set_fmt(struct v4l2_su
+ 		framefmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
+ 		*framefmt = format->format;
+ 	} else {
++		/*
++		 * If we have changed modes, write the I2C register list on
++		 * a stream_on().
++		 */
++		if (state->mode != mode)
++			state->write_mode_regs = true;
+ 		state->mode = mode;
+ 	}
+ 
+@@ -967,6 +1405,9 @@ static int ov5647_probe(struct i2c_clien
+ 	/* Set the default mode before we init the subdev */
+ 	sensor->mode = OV5647_DEFAULT_MODE;
+ 
++	/* Write out the register set over I2C on stream-on. */
++	sensor->write_mode_regs = true;
++
+ 	sd = &sensor->sd;
+ 	v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops);
+ 	sensor->sd.internal_ops = &ov5647_subdev_internal_ops;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0229-media-ov5647-change-defaults-to-better-match-raw-cam.patch b/target/linux/bcm27xx/patches-5.10/950-0229-media-ov5647-change-defaults-to-better-match-raw-cam.patch
new file mode 100644
index 0000000000..43053890d3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0229-media-ov5647-change-defaults-to-better-match-raw-cam.patch
@@ -0,0 +1,59 @@
+From aab5d5842d718544ef906dc8cc5c221e6121160f Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 29 Jan 2020 15:31:32 +0000
+Subject: [PATCH] media: ov5647: change defaults to better match raw
+ camera applications.
+
+Specifically:
+
+* AWB is now off by default.
+
+* AEC/AGC is also off by default.
+
+* The default mode is changed to the 10-bit 2x2 binned mode.
+
+AWB and AEC/AGC can be re-enabled using the usual V4L2 controls. The
+original 8-bit mode will be respected if an application requests the
+8-bit format.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -669,8 +669,8 @@ static struct ov5647_mode supported_mode
+ 	},
+ };
+ 
+-/* Use original 8-bit VGA mode as default. */
+-#define OV5647_DEFAULT_MODE (&supported_modes_8bit[0])
++/* Use 2x2 binned 10-bit mode as default. */
++#define OV5647_DEFAULT_MODE (&supported_modes_10bit[2])
+ 
+ static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
+ {
+@@ -1367,18 +1367,18 @@ static int ov5647_probe(struct i2c_clien
+ 			  0,  /* min */
+ 			  1,  /* max */
+ 			  1,  /* step */
+-			  1); /* default */
++			  0); /* default */
+ 	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			  V4L2_CID_AUTO_WHITE_BALANCE,
+ 			  0,  /* min */
+ 			  1,  /* max */
+ 			  1,  /* step */
+-			  1); /* default */
++			  0); /* default */
+ 	v4l2_ctrl_new_std_menu(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			       V4L2_CID_EXPOSURE_AUTO,
+ 			       V4L2_EXPOSURE_MANUAL,  /* max */
+ 			       0,                     /* skip_mask */
+-			       V4L2_EXPOSURE_AUTO);   /* default */
++			       V4L2_EXPOSURE_MANUAL); /* default */
+ 	ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 				 V4L2_CID_EXPOSURE,
+ 				 4,     /* min lines */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0230-media-i2c-ov5647-Add-support-for-g_selection-to-refl.patch b/target/linux/bcm27xx/patches-5.10/950-0230-media-i2c-ov5647-Add-support-for-g_selection-to-refl.patch
new file mode 100644
index 0000000000..3b3bba282c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0230-media-i2c-ov5647-Add-support-for-g_selection-to-refl.patch
@@ -0,0 +1,206 @@
+From 450dc10dd858314fcb5e18942b6e5260e3478f10 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 11:46:07 +0100
+Subject: [PATCH] media: i2c: ov5647: Add support for g_selection to
+ reflect cropping/binning
+
+In order to apply lens shading correctly the client needs to know how
+each mode crops or scales the image compared to the full sensor array.
+Implement this (based on the imx219 equivalent).
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 119 ++++++++++++++++++++++++++++++-------
+ 1 file changed, 96 insertions(+), 23 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -70,25 +70,14 @@
+ #define VAL_TERM 0xfe
+ #define REG_DLY  0xffff
+ 
+-#define OV5647_ROW_START		0x01
+-#define OV5647_ROW_START_MIN		0
+-#define OV5647_ROW_START_MAX		2004
+-#define OV5647_ROW_START_DEF		54
+-
+-#define OV5647_COLUMN_START		0x02
+-#define OV5647_COLUMN_START_MIN		0
+-#define OV5647_COLUMN_START_MAX		2750
+-#define OV5647_COLUMN_START_DEF		16
+-
+-#define OV5647_WINDOW_HEIGHT		0x03
+-#define OV5647_WINDOW_HEIGHT_MIN	2
+-#define OV5647_WINDOW_HEIGHT_MAX	2006
+-#define OV5647_WINDOW_HEIGHT_DEF	1944
+-
+-#define OV5647_WINDOW_WIDTH		0x04
+-#define OV5647_WINDOW_WIDTH_MIN		2
+-#define OV5647_WINDOW_WIDTH_MAX		2752
+-#define OV5647_WINDOW_WIDTH_DEF		2592
++/* OV5647 native and active pixel array size */
++#define OV5647_NATIVE_WIDTH		2624U
++#define OV5647_NATIVE_HEIGHT		1956U
++
++#define OV5647_PIXEL_ARRAY_LEFT		16U
++#define OV5647_PIXEL_ARRAY_TOP		16U
++#define OV5647_PIXEL_ARRAY_WIDTH	2592U
++#define OV5647_PIXEL_ARRAY_HEIGHT	1944U
+ 
+ struct regval_list {
+ 	u16 addr;
+@@ -97,6 +86,9 @@ struct regval_list {
+ 
+ struct ov5647_mode {
+ 	struct v4l2_mbus_framefmt	format;
++	/* Analog crop rectangle. */
++	struct v4l2_rect crop;
++
+ 	struct regval_list		*reg_list;
+ 	unsigned int			num_regs;
+ };
+@@ -603,6 +595,12 @@ static struct ov5647_mode supported_mode
+ 			.width = 640,
+ 			.height = 480
+ 		},
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 1280,
++			.height = 960,
++		},
+ 		ov5647_640x480_8bit,
+ 		ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+@@ -620,6 +618,12 @@ static struct ov5647_mode supported_mode
+ 			.width = 2592,
+ 			.height = 1944
+ 		},
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 2592,
++			.height = 1944
++		},
+ 		ov5647_2592x1944_10bit,
+ 		ARRAY_SIZE(ov5647_2592x1944_10bit)
+ 	},
+@@ -635,6 +639,12 @@ static struct ov5647_mode supported_mode
+ 			.width = 1920,
+ 			.height = 1080
+ 		},
++		.crop = {
++			.left = 348,
++			.top = 434,
++			.width = 1928,
++			.height = 1080,
++		},
+ 		ov5647_1080p30_10bit,
+ 		ARRAY_SIZE(ov5647_1080p30_10bit)
+ 	},
+@@ -649,6 +659,12 @@ static struct ov5647_mode supported_mode
+ 			.width = 1296,
+ 			.height = 972
+ 		},
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 2592,
++			.height = 1944,
++		},
+ 		ov5647_2x2binned_10bit,
+ 		ARRAY_SIZE(ov5647_2x2binned_10bit)
+ 	},
+@@ -664,6 +680,12 @@ static struct ov5647_mode supported_mode
+ 			.width = 640,
+ 			.height = 480
+ 		},
++		.crop = {
++			.left = 16,
++			.top = 0,
++			.width = 2560,
++			.height = 1920,
++		},
+ 		ov5647_640x480_10bit,
+ 		ARRAY_SIZE(ov5647_640x480_10bit)
+ 	},
+@@ -971,6 +993,56 @@ static const struct v4l2_subdev_core_ops
+ #endif
+ };
+ 
++static const struct v4l2_rect *
++__ov5647_get_pad_crop(struct ov5647 *ov5647, struct v4l2_subdev_pad_config *cfg,
++		      unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++	switch (which) {
++	case V4L2_SUBDEV_FORMAT_TRY:
++		return v4l2_subdev_get_try_crop(&ov5647->sd, cfg, pad);
++	case V4L2_SUBDEV_FORMAT_ACTIVE:
++		return &ov5647->mode->crop;
++	}
++
++	return NULL;
++}
++
++static int ov5647_get_selection(struct v4l2_subdev *sd,
++				struct v4l2_subdev_pad_config *cfg,
++				struct v4l2_subdev_selection *sel)
++{
++	switch (sel->target) {
++	case V4L2_SEL_TGT_CROP: {
++		struct ov5647 *state = to_state(sd);
++
++		mutex_lock(&state->lock);
++		sel->r = *__ov5647_get_pad_crop(state, cfg, sel->pad,
++						sel->which);
++		mutex_unlock(&state->lock);
++
++		return 0;
++	}
++
++	case V4L2_SEL_TGT_NATIVE_SIZE:
++		sel->r.top = 0;
++		sel->r.left = 0;
++		sel->r.width = OV5647_NATIVE_WIDTH;
++		sel->r.height = OV5647_NATIVE_HEIGHT;
++
++		return 0;
++
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++		sel->r.top = OV5647_PIXEL_ARRAY_TOP;
++		sel->r.left = OV5647_PIXEL_ARRAY_LEFT;
++		sel->r.width = OV5647_PIXEL_ARRAY_WIDTH;
++		sel->r.height = OV5647_PIXEL_ARRAY_HEIGHT;
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
+ static int ov5647_s_stream(struct v4l2_subdev *sd, int enable)
+ {
+ 	struct ov5647 *state = to_state(sd);
+@@ -1122,6 +1194,7 @@ static const struct v4l2_subdev_pad_ops
+ 	.enum_mbus_code = ov5647_enum_mbus_code,
+ 	.set_fmt =	  ov5647_set_fmt,
+ 	.get_fmt =	  ov5647_get_fmt,
++	.get_selection =  ov5647_get_selection,
+ 	.enum_frame_size = ov5647_enum_frame_size,
+ };
+ 
+@@ -1170,10 +1243,10 @@ static int ov5647_open(struct v4l2_subde
+ 				v4l2_subdev_get_try_crop(sd, fh->pad, 0);
+ 	struct ov5647 *state = to_state(sd);
+ 
+-	crop->left = OV5647_COLUMN_START_DEF;
+-	crop->top = OV5647_ROW_START_DEF;
+-	crop->width = OV5647_WINDOW_WIDTH_DEF;
+-	crop->height = OV5647_WINDOW_HEIGHT_DEF;
++	crop->left = OV5647_PIXEL_ARRAY_LEFT;
++	crop->top = OV5647_PIXEL_ARRAY_TOP;
++	crop->width = OV5647_PIXEL_ARRAY_WIDTH;
++	crop->height = OV5647_PIXEL_ARRAY_HEIGHT;
+ 
+ 	/* Set the default format to the same as the sensor. */
+ 	*format = state->mode->format;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0231-media-i2c-ov5467-Fixup-error-path-to-release-mutex.patch b/target/linux/bcm27xx/patches-5.10/950-0231-media-i2c-ov5467-Fixup-error-path-to-release-mutex.patch
new file mode 100644
index 0000000000..2547aac869
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0231-media-i2c-ov5467-Fixup-error-path-to-release-mutex.patch
@@ -0,0 +1,29 @@
+From 5c462e56efdb4de0e3b785082d8adae675ccaefd Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 11:50:52 +0100
+Subject: [PATCH] media: i2c: ov5467: Fixup error path to release mutex
+
+"87f3ab9 media: ov5647: Add basic support for multiple sensor modes."
+added a return path ov5647_set_fmt that didn't release the device
+mutex that it had claimed.
+Release the mutex.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -1146,8 +1146,10 @@ static int ov5647_set_fmt(struct v4l2_su
+ 	else
+ 		mode = mode_8bit;
+ 
+-	if (!mode)
++	if (!mode) {
++		mutex_unlock(&state->lock);
+ 		return -EINVAL;
++	}
+ 
+ 	*fmt = mode->format;
+ 	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0232-media-i2c-ov5647-Support-V4L2_CID_PIXEL_RATE.patch b/target/linux/bcm27xx/patches-5.10/950-0232-media-i2c-ov5647-Support-V4L2_CID_PIXEL_RATE.patch
new file mode 100644
index 0000000000..78054d937f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0232-media-i2c-ov5647-Support-V4L2_CID_PIXEL_RATE.patch
@@ -0,0 +1,131 @@
+From 5cb8892104a869adaf76d40629b5a0230d32edd0 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 12:25:13 +0100
+Subject: [PATCH] media: i2c: ov5647: Support V4L2_CID_PIXEL_RATE
+
+Clients need to know the pixel rate in order to compute exposure
+and frame rate values.
+Advertise it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 31 +++++++++++++++++++++++++++----
+ 1 file changed, 27 insertions(+), 4 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -89,6 +89,8 @@ struct ov5647_mode {
+ 	/* Analog crop rectangle. */
+ 	struct v4l2_rect crop;
+ 
++	u64 pixel_rate;
++
+ 	struct regval_list		*reg_list;
+ 	unsigned int			num_regs;
+ };
+@@ -103,6 +105,7 @@ struct ov5647 {
+ 	struct gpio_desc		*pwdn;
+ 	unsigned int			flags;
+ 	struct v4l2_ctrl_handler	ctrls;
++	struct v4l2_ctrl		*pixel_rate;
+ 	bool				write_mode_regs;
+ };
+ 
+@@ -601,6 +604,7 @@ static struct ov5647_mode supported_mode
+ 			.width = 1280,
+ 			.height = 960,
+ 		},
++		.pixel_rate = 77291670,
+ 		ov5647_640x480_8bit,
+ 		ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+@@ -624,6 +628,7 @@ static struct ov5647_mode supported_mode
+ 			.width = 2592,
+ 			.height = 1944
+ 		},
++		.pixel_rate = 87500000,
+ 		ov5647_2592x1944_10bit,
+ 		ARRAY_SIZE(ov5647_2592x1944_10bit)
+ 	},
+@@ -645,6 +650,7 @@ static struct ov5647_mode supported_mode
+ 			.width = 1928,
+ 			.height = 1080,
+ 		},
++		.pixel_rate = 81666700,
+ 		ov5647_1080p30_10bit,
+ 		ARRAY_SIZE(ov5647_1080p30_10bit)
+ 	},
+@@ -665,6 +671,7 @@ static struct ov5647_mode supported_mode
+ 			.width = 2592,
+ 			.height = 1944,
+ 		},
++		.pixel_rate = 81666700,
+ 		ov5647_2x2binned_10bit,
+ 		ARRAY_SIZE(ov5647_2x2binned_10bit)
+ 	},
+@@ -686,6 +693,7 @@ static struct ov5647_mode supported_mode
+ 			.width = 2560,
+ 			.height = 1920,
+ 		},
++		.pixel_rate = 55000000,
+ 		ov5647_640x480_10bit,
+ 		ARRAY_SIZE(ov5647_640x480_10bit)
+ 	},
+@@ -1163,6 +1171,11 @@ static int ov5647_set_fmt(struct v4l2_su
+ 		if (state->mode != mode)
+ 			state->write_mode_regs = true;
+ 		state->mode = mode;
++
++		__v4l2_ctrl_modify_range(state->pixel_rate,
++					 mode->pixel_rate,
++					 mode->pixel_rate, 1,
++					 mode->pixel_rate);
+ 	}
+ 
+ 	mutex_unlock(&state->lock);
+@@ -1379,6 +1392,9 @@ static int ov5647_s_ctrl(struct v4l2_ctr
+ 	case V4L2_CID_EXPOSURE:
+ 		ret = ov5647_s_exposure(sd, ctrl->val);
+ 		break;
++	case V4L2_CID_PIXEL_RATE:
++		/* Read-only, but we adjust it based on mode. */
++		break;
+ 	default:
+ 		dev_info(&client->dev,
+ 			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
+@@ -1436,7 +1452,7 @@ static int ov5647_probe(struct i2c_clien
+ 	mutex_init(&sensor->lock);
+ 
+ 	/* Initialise controls. */
+-	v4l2_ctrl_handler_init(&sensor->ctrls, 3);
++	v4l2_ctrl_handler_init(&sensor->ctrls, 6);
+ 	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			  V4L2_CID_AUTOGAIN,
+ 			  0,  /* min */
+@@ -1469,6 +1485,16 @@ static int ov5647_probe(struct i2c_clien
+ 				 32);  /* default, 32 = 2.0x */
+ 	ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
+ 
++	/* Set the default mode before we init the subdev */
++	sensor->mode = OV5647_DEFAULT_MODE;
++
++	/* By default, PIXEL_RATE is read only, but it does change per mode */
++	sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++					       V4L2_CID_PIXEL_RATE,
++					       sensor->mode->pixel_rate,
++					       sensor->mode->pixel_rate, 1,
++					       sensor->mode->pixel_rate);
++
+ 	if (sensor->ctrls.error) {
+ 		ret = sensor->ctrls.error;
+ 		dev_err(&client->dev, "%s control init failed (%d)\n",
+@@ -1477,9 +1503,6 @@ static int ov5647_probe(struct i2c_clien
+ 	}
+ 	sensor->sd.ctrl_handler = &sensor->ctrls;
+ 
+-	/* Set the default mode before we init the subdev */
+-	sensor->mode = OV5647_DEFAULT_MODE;
+-
+ 	/* Write out the register set over I2C on stream-on. */
+ 	sensor->write_mode_regs = true;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0233-media-i2c-ov5647-Set-V4L2_SUBDEV_FL_HAS_EVENTS-flag.patch b/target/linux/bcm27xx/patches-5.10/950-0233-media-i2c-ov5647-Set-V4L2_SUBDEV_FL_HAS_EVENTS-flag.patch
new file mode 100644
index 0000000000..1f7710e382
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0233-media-i2c-ov5647-Set-V4L2_SUBDEV_FL_HAS_EVENTS-flag.patch
@@ -0,0 +1,143 @@
+From 29e3826878f43cd88414824be055cf5fcd57ab23 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 17:25:56 +0100
+Subject: [PATCH] media: i2c: ov5647: Set V4L2_SUBDEV_FL_HAS_EVENTS
+ flag
+
+The ov5647 subdev can generate control events, therefore set
+the V4L2_SUBDEV_FL_HAS_EVENTS flag.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 29 +++++++++++++++++++++++++++--
+ 1 file changed, 27 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -90,6 +90,8 @@ struct ov5647_mode {
+ 	struct v4l2_rect crop;
+ 
+ 	u64 pixel_rate;
++	/* HTS as defined in the register set (0x380C/0x380D) */
++	int hts;
+ 
+ 	struct regval_list		*reg_list;
+ 	unsigned int			num_regs;
+@@ -106,6 +108,7 @@ struct ov5647 {
+ 	unsigned int			flags;
+ 	struct v4l2_ctrl_handler	ctrls;
+ 	struct v4l2_ctrl		*pixel_rate;
++	struct v4l2_ctrl		*hblank;
+ 	bool				write_mode_regs;
+ };
+ 
+@@ -605,6 +608,7 @@ static struct ov5647_mode supported_mode
+ 			.height = 960,
+ 		},
+ 		.pixel_rate = 77291670,
++		.hts = 1896,
+ 		ov5647_640x480_8bit,
+ 		ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+@@ -629,6 +633,7 @@ static struct ov5647_mode supported_mode
+ 			.height = 1944
+ 		},
+ 		.pixel_rate = 87500000,
++		.hts = 2844,
+ 		ov5647_2592x1944_10bit,
+ 		ARRAY_SIZE(ov5647_2592x1944_10bit)
+ 	},
+@@ -651,6 +656,7 @@ static struct ov5647_mode supported_mode
+ 			.height = 1080,
+ 		},
+ 		.pixel_rate = 81666700,
++		.hts = 2416,
+ 		ov5647_1080p30_10bit,
+ 		ARRAY_SIZE(ov5647_1080p30_10bit)
+ 	},
+@@ -672,6 +678,7 @@ static struct ov5647_mode supported_mode
+ 			.height = 1944,
+ 		},
+ 		.pixel_rate = 81666700,
++		.hts = 1896,
+ 		ov5647_2x2binned_10bit,
+ 		ARRAY_SIZE(ov5647_2x2binned_10bit)
+ 	},
+@@ -694,6 +701,7 @@ static struct ov5647_mode supported_mode
+ 			.height = 1920,
+ 		},
+ 		.pixel_rate = 55000000,
++		.hts = 1852,
+ 		ov5647_640x480_10bit,
+ 		ARRAY_SIZE(ov5647_640x480_10bit)
+ 	},
+@@ -1168,6 +1176,8 @@ static int ov5647_set_fmt(struct v4l2_su
+ 		 * If we have changed modes, write the I2C register list on
+ 		 * a stream_on().
+ 		 */
++		int hblank;
++
+ 		if (state->mode != mode)
+ 			state->write_mode_regs = true;
+ 		state->mode = mode;
+@@ -1176,6 +1186,9 @@ static int ov5647_set_fmt(struct v4l2_su
+ 					 mode->pixel_rate,
+ 					 mode->pixel_rate, 1,
+ 					 mode->pixel_rate);
++		hblank = mode->hts - mode->format.width;
++		__v4l2_ctrl_modify_range(state->hblank, hblank, hblank, 1,
++					 hblank);
+ 	}
+ 
+ 	mutex_unlock(&state->lock);
+@@ -1395,6 +1408,9 @@ static int ov5647_s_ctrl(struct v4l2_ctr
+ 	case V4L2_CID_PIXEL_RATE:
+ 		/* Read-only, but we adjust it based on mode. */
+ 		break;
++	case V4L2_CID_HBLANK:
++		/* Read-only, but we adjust it based on mode. */
++		break;
+ 	default:
+ 		dev_info(&client->dev,
+ 			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
+@@ -1419,6 +1435,7 @@ static int ov5647_probe(struct i2c_clien
+ 	struct device_node *np = client->dev.of_node;
+ 	u32 xclk_freq;
+ 	struct v4l2_ctrl *ctrl;
++	int hblank;
+ 
+ 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+ 	if (!sensor)
+@@ -1452,7 +1469,7 @@ static int ov5647_probe(struct i2c_clien
+ 	mutex_init(&sensor->lock);
+ 
+ 	/* Initialise controls. */
+-	v4l2_ctrl_handler_init(&sensor->ctrls, 6);
++	v4l2_ctrl_handler_init(&sensor->ctrls, 7);
+ 	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			  V4L2_CID_AUTOGAIN,
+ 			  0,  /* min */
+@@ -1495,6 +1512,13 @@ static int ov5647_probe(struct i2c_clien
+ 					       sensor->mode->pixel_rate, 1,
+ 					       sensor->mode->pixel_rate);
+ 
++	/* By default, HBLANK is read only, but it does change per mode */
++	hblank = sensor->mode->hts - sensor->mode->format.width;
++	sensor->hblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++					   V4L2_CID_HBLANK, hblank, hblank, 1,
++					   hblank);
++	sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
++
+ 	if (sensor->ctrls.error) {
+ 		ret = sensor->ctrls.error;
+ 		dev_err(&client->dev, "%s control init failed (%d)\n",
+@@ -1509,7 +1533,8 @@ static int ov5647_probe(struct i2c_clien
+ 	sd = &sensor->sd;
+ 	v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops);
+ 	sensor->sd.internal_ops = &ov5647_subdev_internal_ops;
+-	sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++	sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
++			    V4L2_SUBDEV_FL_HAS_EVENTS;
+ 
+ 	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
+ 	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0234-media-i2c-ov5647-Add-support-for-V4L2_CID_VBLANK.patch b/target/linux/bcm27xx/patches-5.10/950-0234-media-i2c-ov5647-Add-support-for-V4L2_CID_VBLANK.patch
new file mode 100644
index 0000000000..53a6dad006
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0234-media-i2c-ov5647-Add-support-for-V4L2_CID_VBLANK.patch
@@ -0,0 +1,205 @@
+From 95a10a4709eea202f3ce833fdeb9b30c17d80148 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 21:39:58 +0100
+Subject: [PATCH] media: i2c: ov5647: Add support for V4L2_CID_VBLANK
+
+Adds vblank control to allow for frame rate control.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 65 ++++++++++++++++++++++++++++++++------
+ 1 file changed, 55 insertions(+), 10 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -61,6 +61,8 @@
+ #define OV5647_REG_AEC_AGC		0x3503
+ #define OV5647_REG_GAIN_HI		0x350A
+ #define OV5647_REG_GAIN_LO		0x350B
++#define OV5647_REG_VTS_HI		0x380e
++#define OV5647_REG_VTS_LO		0x380f
+ #define OV5647_REG_FRAME_OFF_NUMBER	0x4202
+ #define OV5647_REG_MIPI_CTRL00		0x4800
+ #define OV5647_REG_MIPI_CTRL14		0x4814
+@@ -79,6 +81,9 @@
+ #define OV5647_PIXEL_ARRAY_WIDTH	2592U
+ #define OV5647_PIXEL_ARRAY_HEIGHT	1944U
+ 
++#define OV5647_VBLANK_MIN		4
++#define OV5647_VTS_MAX			32767
++
+ struct regval_list {
+ 	u16 addr;
+ 	u8 data;
+@@ -92,6 +97,8 @@ struct ov5647_mode {
+ 	u64 pixel_rate;
+ 	/* HTS as defined in the register set (0x380C/0x380D) */
+ 	int hts;
++	/* Default VTS value for this mode */
++	int vts_def;
+ 
+ 	struct regval_list		*reg_list;
+ 	unsigned int			num_regs;
+@@ -109,6 +116,7 @@ struct ov5647 {
+ 	struct v4l2_ctrl_handler	ctrls;
+ 	struct v4l2_ctrl		*pixel_rate;
+ 	struct v4l2_ctrl		*hblank;
++	struct v4l2_ctrl		*vblank;
+ 	bool				write_mode_regs;
+ };
+ 
+@@ -161,8 +169,6 @@ static struct regval_list ov5647_640x480
+ 	{0x3b07, 0x0c},
+ 	{0x380c, 0x07},
+ 	{0x380d, 0x68},
+-	{0x380e, 0x03},
+-	{0x380f, 0xd8},
+ 	{0x3814, 0x31},
+ 	{0x3815, 0x31},
+ 	{0x3708, 0x64},
+@@ -251,8 +257,6 @@ static struct regval_list ov5647_2592x19
+ 	{0x3b07, 0x0c},
+ 	{0x380c, 0x0b},
+ 	{0x380d, 0x1c},
+-	{0x380e, 0x07},
+-	{0x380f, 0xb0},
+ 	{0x3814, 0x11},
+ 	{0x3815, 0x11},
+ 	{0x3708, 0x64},
+@@ -342,8 +346,6 @@ static struct regval_list ov5647_1080p30
+ 	{0x3b07, 0x0c},
+ 	{0x380c, 0x09},
+ 	{0x380d, 0x70},
+-	{0x380e, 0x04},
+-	{0x380f, 0x50},
+ 	{0x3814, 0x11},
+ 	{0x3815, 0x11},
+ 	{0x3708, 0x64},
+@@ -485,8 +487,6 @@ static struct regval_list ov5647_2x2binn
+ 	{0x3503, 0x03},
+ 	{0x3820, 0x41},
+ 	{0x3821, 0x07},
+-	{0x380E, 0x05},
+-	{0x380F, 0x9B},
+ 	{0x350A, 0x00},
+ 	{0x350B, 0x10},
+ 	{0x3500, 0x00},
+@@ -520,8 +520,6 @@ static struct regval_list ov5647_640x480
+ 	{0x3b07, 0x0c},
+ 	{0x380c, 0x07},
+ 	{0x380d, 0x3c},
+-	{0x380e, 0x01},
+-	{0x380f, 0xf8},
+ 	{0x3814, 0x35},
+ 	{0x3815, 0x35},
+ 	{0x3708, 0x64},
+@@ -609,6 +607,7 @@ static struct ov5647_mode supported_mode
+ 		},
+ 		.pixel_rate = 77291670,
+ 		.hts = 1896,
++		.vts_def = 0x3d8,
+ 		ov5647_640x480_8bit,
+ 		ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+@@ -634,6 +633,7 @@ static struct ov5647_mode supported_mode
+ 		},
+ 		.pixel_rate = 87500000,
+ 		.hts = 2844,
++		.vts_def = 0x7b0,
+ 		ov5647_2592x1944_10bit,
+ 		ARRAY_SIZE(ov5647_2592x1944_10bit)
+ 	},
+@@ -657,6 +657,7 @@ static struct ov5647_mode supported_mode
+ 		},
+ 		.pixel_rate = 81666700,
+ 		.hts = 2416,
++		.vts_def = 0x450,
+ 		ov5647_1080p30_10bit,
+ 		ARRAY_SIZE(ov5647_1080p30_10bit)
+ 	},
+@@ -679,6 +680,7 @@ static struct ov5647_mode supported_mode
+ 		},
+ 		.pixel_rate = 81666700,
+ 		.hts = 1896,
++		.vts_def = 0x59b,
+ 		ov5647_2x2binned_10bit,
+ 		ARRAY_SIZE(ov5647_2x2binned_10bit)
+ 	},
+@@ -702,6 +704,7 @@ static struct ov5647_mode supported_mode
+ 		},
+ 		.pixel_rate = 55000000,
+ 		.hts = 1852,
++		.vts_def = 0x1f8,
+ 		ov5647_640x480_10bit,
+ 		ARRAY_SIZE(ov5647_640x480_10bit)
+ 	},
+@@ -710,6 +713,29 @@ static struct ov5647_mode supported_mode
+ /* Use 2x2 binned 10-bit mode as default. */
+ #define OV5647_DEFAULT_MODE (&supported_modes_10bit[2])
+ 
++static int ov5647_write16(struct v4l2_subdev *sd, u16 reg, u16 val)
++{
++	int ret;
++	unsigned char data[4] = { reg >> 8, reg & 0xff, val >> 8, val & 0xff};
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++
++	ret = i2c_master_send(client, data, 4);
++	/*
++	 * Writing the wrong number of bytes also needs to be flagged as an
++	 * error. Success needs to produce a 0 return code.
++	 */
++	if (ret == 4) {
++		ret = 0;
++	} else {
++		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
++			__func__, reg);
++		if (ret >= 0)
++			ret = -EINVAL;
++	}
++
++	return ret;
++}
++
+ static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
+ {
+ 	int ret;
+@@ -1189,6 +1215,14 @@ static int ov5647_set_fmt(struct v4l2_su
+ 		hblank = mode->hts - mode->format.width;
+ 		__v4l2_ctrl_modify_range(state->hblank, hblank, hblank, 1,
+ 					 hblank);
++
++		__v4l2_ctrl_modify_range(state->vblank,
++					 OV5647_VBLANK_MIN,
++					 OV5647_VTS_MAX - mode->format.height,
++					 1,
++					 mode->vts_def - mode->format.height);
++		__v4l2_ctrl_s_ctrl(state->vblank,
++				   mode->vts_def - mode->format.height);
+ 	}
+ 
+ 	mutex_unlock(&state->lock);
+@@ -1411,6 +1445,10 @@ static int ov5647_s_ctrl(struct v4l2_ctr
+ 	case V4L2_CID_HBLANK:
+ 		/* Read-only, but we adjust it based on mode. */
+ 		break;
++	case V4L2_CID_VBLANK:
++		ret = ov5647_write16(sd, OV5647_REG_VTS_HI,
++				     state->mode->format.height + ctrl->val);
++		break;
+ 	default:
+ 		dev_info(&client->dev,
+ 			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
+@@ -1519,6 +1557,13 @@ static int ov5647_probe(struct i2c_clien
+ 					   hblank);
+ 	sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ 
++	sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++					   V4L2_CID_VBLANK, OV5647_VBLANK_MIN,
++					   OV5647_VTS_MAX -
++						sensor->mode->format.height, 1,
++					   sensor->mode->vts_def -
++						sensor->mode->format.height);
++
+ 	if (sensor->ctrls.error) {
+ 		ret = sensor->ctrls.error;
+ 		dev_err(&client->dev, "%s control init failed (%d)\n",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0235-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch b/target/linux/bcm27xx/patches-5.10/950-0235-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch
new file mode 100644
index 0000000000..b1505e7d06
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0235-media-i2c-ov5647-Neither-analogue-gain-nor-exposure-.patch
@@ -0,0 +1,58 @@
+From 05a1c88d9b8dd344edfce3eaa00a3cac866cf3ad Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 21:47:25 +0100
+Subject: [PATCH] media: i2c: ov5647: Neither analogue gain nor
+ exposure need EXECUTE_ON_WRITE
+
+The controls for analogue gain and exposure were defined with
+V4L2_CTRL_FLAG_EXECUTE_ON_WRITE. This is not required as we only need
+to send changes to the sensor.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 27 ++++++++++++---------------
+ 1 file changed, 12 insertions(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -1472,7 +1472,6 @@ static int ov5647_probe(struct i2c_clien
+ 	struct v4l2_subdev *sd;
+ 	struct device_node *np = client->dev.of_node;
+ 	u32 xclk_freq;
+-	struct v4l2_ctrl *ctrl;
+ 	int hblank;
+ 
+ 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+@@ -1525,20 +1524,18 @@ static int ov5647_probe(struct i2c_clien
+ 			       V4L2_EXPOSURE_MANUAL,  /* max */
+ 			       0,                     /* skip_mask */
+ 			       V4L2_EXPOSURE_MANUAL); /* default */
+-	ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+-				 V4L2_CID_EXPOSURE,
+-				 4,     /* min lines */
+-				 65535, /* max lines (4+8+4 bits)*/
+-				 1,     /* step */
+-				 1000); /* default number of lines */
+-	ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
+-	ctrl = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+-				 V4L2_CID_ANALOGUE_GAIN,
+-				 16,   /* min, 16 = 1.0x */
+-				 1023, /* max (10 bits) */
+-				 1,    /* step */
+-				 32);  /* default, 32 = 2.0x */
+-	ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE;
++	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++			  V4L2_CID_EXPOSURE,
++			  4,     /* min lines */
++			  65535, /* max lines (4+8+4 bits)*/
++			  1,     /* step */
++			  1000); /* default number of lines */
++	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++			  V4L2_CID_ANALOGUE_GAIN,
++			  16,   /* min, 16 = 1.0x */
++			  1023, /* max (10 bits) */
++			  1,    /* step */
++			  32);  /* default, 32 = 2.0x */
+ 
+ 	/* Set the default mode before we init the subdev */
+ 	sensor->mode = OV5647_DEFAULT_MODE;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0236-media-i2c-ov5647-Use-member-names-in-mode-tables.patch b/target/linux/bcm27xx/patches-5.10/950-0236-media-i2c-ov5647-Use-member-names-in-mode-tables.patch
new file mode 100644
index 0000000000..e96e6a40b1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0236-media-i2c-ov5647-Use-member-names-in-mode-tables.patch
@@ -0,0 +1,111 @@
+From 1073eef3ada930c9c35b2b0da30828cfe1ea4024 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 22:11:01 +0100
+Subject: [PATCH] media: i2c: ov5647: Use member names in mode tables
+
+To make adding new members to the mode structures easier, use
+the member names in the initialisers.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 30 +++++++++++++++---------------
+ 1 file changed, 15 insertions(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -592,7 +592,7 @@ static struct ov5647_mode supported_mode
+ 	 * Uncentred crop (top left quarter) from 2x2 binned 1296x972 image.
+ 	 */
+ 	{
+-		{
++		.format = {
+ 			.code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ 			.colorspace = V4L2_COLORSPACE_SRGB,
+ 			.field = V4L2_FIELD_NONE,
+@@ -608,8 +608,8 @@ static struct ov5647_mode supported_mode
+ 		.pixel_rate = 77291670,
+ 		.hts = 1896,
+ 		.vts_def = 0x3d8,
+-		ov5647_640x480_8bit,
+-		ARRAY_SIZE(ov5647_640x480_8bit)
++		.reg_list = ov5647_640x480_8bit,
++		.num_regs = ARRAY_SIZE(ov5647_640x480_8bit)
+ 	},
+ };
+ 
+@@ -618,7 +618,7 @@ static struct ov5647_mode supported_mode
+ 	 * MODE 0: 2592x1944 full resolution full FOV 10-bit mode.
+ 	 */
+ 	{
+-		{
++		.format = {
+ 			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ 			.colorspace = V4L2_COLORSPACE_SRGB,
+ 			.field = V4L2_FIELD_NONE,
+@@ -634,15 +634,15 @@ static struct ov5647_mode supported_mode
+ 		.pixel_rate = 87500000,
+ 		.hts = 2844,
+ 		.vts_def = 0x7b0,
+-		ov5647_2592x1944_10bit,
+-		ARRAY_SIZE(ov5647_2592x1944_10bit)
++		.reg_list = ov5647_2592x1944_10bit,
++		.num_regs = ARRAY_SIZE(ov5647_2592x1944_10bit)
+ 	},
+ 	/*
+ 	 * MODE 1: 1080p30 10-bit mode.
+ 	 * Full resolution centre-cropped down to 1080p.
+ 	 */
+ 	{
+-		{
++		.format = {
+ 			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ 			.colorspace = V4L2_COLORSPACE_SRGB,
+ 			.field = V4L2_FIELD_NONE,
+@@ -658,14 +658,14 @@ static struct ov5647_mode supported_mode
+ 		.pixel_rate = 81666700,
+ 		.hts = 2416,
+ 		.vts_def = 0x450,
+-		ov5647_1080p30_10bit,
+-		ARRAY_SIZE(ov5647_1080p30_10bit)
++		.reg_list = ov5647_1080p30_10bit,
++		.num_regs = ARRAY_SIZE(ov5647_1080p30_10bit)
+ 	},
+ 	/*
+ 	 * MODE 2: 2x2 binned full FOV 10-bit mode.
+ 	 */
+ 	{
+-		{
++		.format = {
+ 			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ 			.colorspace = V4L2_COLORSPACE_SRGB,
+ 			.field = V4L2_FIELD_NONE,
+@@ -681,15 +681,15 @@ static struct ov5647_mode supported_mode
+ 		.pixel_rate = 81666700,
+ 		.hts = 1896,
+ 		.vts_def = 0x59b,
+-		ov5647_2x2binned_10bit,
+-		ARRAY_SIZE(ov5647_2x2binned_10bit)
++		.reg_list = ov5647_2x2binned_10bit,
++		.num_regs = ARRAY_SIZE(ov5647_2x2binned_10bit)
+ 	},
+ 	/*
+ 	 * MODE 3: 10-bit VGA full FOV mode 60fps.
+ 	 * 2x2 binned and subsampled down to VGA.
+ 	 */
+ 	{
+-		{
++		.format = {
+ 			.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ 			.colorspace = V4L2_COLORSPACE_SRGB,
+ 			.field = V4L2_FIELD_NONE,
+@@ -705,8 +705,8 @@ static struct ov5647_mode supported_mode
+ 		.pixel_rate = 55000000,
+ 		.hts = 1852,
+ 		.vts_def = 0x1f8,
+-		ov5647_640x480_10bit,
+-		ARRAY_SIZE(ov5647_640x480_10bit)
++		.reg_list = ov5647_640x480_10bit,
++		.num_regs = ARRAY_SIZE(ov5647_640x480_10bit)
+ 	},
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0237-media-i2c-ov5647-Advertise-the-correct-exposure-rang.patch b/target/linux/bcm27xx/patches-5.10/950-0237-media-i2c-ov5647-Advertise-the-correct-exposure-rang.patch
new file mode 100644
index 0000000000..6bdde3a7ab
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0237-media-i2c-ov5647-Advertise-the-correct-exposure-rang.patch
@@ -0,0 +1,119 @@
+From 7048b8678ac96eb512adfb18990eff0c9b8109f5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 30 Apr 2020 11:03:00 +0100
+Subject: [PATCH] media: i2c: ov5647: Advertise the correct exposure
+ range
+
+Exposure is clipped by the VTS of the mode, so needs to be updated as
+and when this is changed.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 47 +++++++++++++++++++++++++++++++-------
+ 1 file changed, 39 insertions(+), 8 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -84,6 +84,11 @@
+ #define OV5647_VBLANK_MIN		4
+ #define OV5647_VTS_MAX			32767
+ 
++#define OV5647_EXPOSURE_MIN		4
++#define OV5647_EXPOSURE_STEP		1
++#define OV5647_EXPOSURE_DEFAULT		1000
++#define OV5647_EXPOSURE_MAX		65535
++
+ struct regval_list {
+ 	u16 addr;
+ 	u8 data;
+@@ -117,6 +122,7 @@ struct ov5647 {
+ 	struct v4l2_ctrl		*pixel_rate;
+ 	struct v4l2_ctrl		*hblank;
+ 	struct v4l2_ctrl		*vblank;
++	struct v4l2_ctrl		*exposure;
+ 	bool				write_mode_regs;
+ };
+ 
+@@ -1202,7 +1208,7 @@ static int ov5647_set_fmt(struct v4l2_su
+ 		 * If we have changed modes, write the I2C register list on
+ 		 * a stream_on().
+ 		 */
+-		int hblank;
++		int exposure_max, exposure_def, hblank;
+ 
+ 		if (state->mode != mode)
+ 			state->write_mode_regs = true;
+@@ -1223,6 +1229,15 @@ static int ov5647_set_fmt(struct v4l2_su
+ 					 mode->vts_def - mode->format.height);
+ 		__v4l2_ctrl_s_ctrl(state->vblank,
+ 				   mode->vts_def - mode->format.height);
++
++		exposure_max = mode->vts_def - 4;
++		exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ?
++					exposure_max : OV5647_EXPOSURE_DEFAULT;
++		__v4l2_ctrl_modify_range(state->exposure,
++					 state->exposure->minimum,
++					 exposure_max,
++					 state->exposure->step,
++					 exposure_def);
+ 	}
+ 
+ 	mutex_unlock(&state->lock);
+@@ -1415,6 +1430,19 @@ static int ov5647_s_ctrl(struct v4l2_ctr
+ 
+ 	/* v4l2_ctrl_lock() locks our own mutex */
+ 
++	if (ctrl->id == V4L2_CID_VBLANK) {
++		int exposure_max, exposure_def;
++
++		/* Update max exposure while meeting expected vblanking */
++		exposure_max = state->mode->format.height + ctrl->val - 4;
++		exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ?
++			exposure_max : OV5647_EXPOSURE_DEFAULT;
++		__v4l2_ctrl_modify_range(state->exposure,
++					 state->exposure->minimum,
++					 exposure_max, state->exposure->step,
++					 exposure_def);
++	}
++
+ 	/*
+ 	 * If the device is not powered up by the host driver do
+ 	 * not apply any controls to H/W at this time. Instead
+@@ -1472,7 +1500,7 @@ static int ov5647_probe(struct i2c_clien
+ 	struct v4l2_subdev *sd;
+ 	struct device_node *np = client->dev.of_node;
+ 	u32 xclk_freq;
+-	int hblank;
++	int hblank, exposure_max, exposure_def;
+ 
+ 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+ 	if (!sensor)
+@@ -1525,12 +1553,6 @@ static int ov5647_probe(struct i2c_clien
+ 			       0,                     /* skip_mask */
+ 			       V4L2_EXPOSURE_MANUAL); /* default */
+ 	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+-			  V4L2_CID_EXPOSURE,
+-			  4,     /* min lines */
+-			  65535, /* max lines (4+8+4 bits)*/
+-			  1,     /* step */
+-			  1000); /* default number of lines */
+-	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			  V4L2_CID_ANALOGUE_GAIN,
+ 			  16,   /* min, 16 = 1.0x */
+ 			  1023, /* max (10 bits) */
+@@ -1540,6 +1562,15 @@ static int ov5647_probe(struct i2c_clien
+ 	/* Set the default mode before we init the subdev */
+ 	sensor->mode = OV5647_DEFAULT_MODE;
+ 
++	exposure_max = sensor->mode->vts_def - 4;
++	exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ?
++		exposure_max : OV5647_EXPOSURE_DEFAULT;
++	sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
++					     V4L2_CID_EXPOSURE,
++					     OV5647_EXPOSURE_MIN, exposure_max,
++					     OV5647_EXPOSURE_STEP,
++					     exposure_def);
++
+ 	/* By default, PIXEL_RATE is read only, but it does change per mode */
+ 	sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 					       V4L2_CID_PIXEL_RATE,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0238-media-bcm2835-unicam-Add-support-for-VIDIOC_-S-G-_SE.patch b/target/linux/bcm27xx/patches-5.10/950-0238-media-bcm2835-unicam-Add-support-for-VIDIOC_-S-G-_SE.patch
new file mode 100644
index 0000000000..e875f6c77b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0238-media-bcm2835-unicam-Add-support-for-VIDIOC_-S-G-_SE.patch
@@ -0,0 +1,82 @@
+From c4b4c783173ae54db7f9f656b25b45f7719f068d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 16:45:02 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for
+ VIDIOC_[S|G]_SELECTION
+
+Sensors are now reflecting cropping and scaling parameters through
+the selection API, therefore Unicam needs to forward the requests
+through to the subdev.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 44 +++++++++++++++++++
+ 1 file changed, 44 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1898,6 +1898,39 @@ static int unicam_g_edid(struct file *fi
+ 	return v4l2_subdev_call(dev->sensor, pad, get_edid, edid);
+ }
+ 
++static int unicam_s_selection(struct file *file, void *priv,
++			      struct v4l2_selection *sel)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_selection sdsel = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.target = sel->target,
++		.flags = sel->flags,
++		.r = sel->r,
++	};
++
++	return v4l2_subdev_call(dev->sensor, pad, set_selection, NULL, &sdsel);
++}
++
++static int unicam_g_selection(struct file *file, void *priv,
++			      struct v4l2_selection *sel)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_selection sdsel = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.target = sel->target,
++	};
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, get_selection, NULL, &sdsel);
++	if (!ret)
++		sel->r = sdsel.r;
++
++	return ret;
++}
++
+ static int unicam_enum_framesizes(struct file *file, void *priv,
+ 				  struct v4l2_frmsizeenum *fsize)
+ {
+@@ -2218,6 +2251,9 @@ static const struct v4l2_ioctl_ops unica
+ 	.vidioc_enum_framesizes		= unicam_enum_framesizes,
+ 	.vidioc_enum_frameintervals	= unicam_enum_frameintervals,
+ 
++	.vidioc_g_selection		= unicam_g_selection,
++	.vidioc_s_selection		= unicam_s_selection,
++
+ 	.vidioc_g_parm			= unicam_g_parm,
+ 	.vidioc_s_parm			= unicam_s_parm,
+ 
+@@ -2446,6 +2482,14 @@ static int register_node(struct unicam_d
+ 	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES);
+ 
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, set_selection))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_SELECTION);
++
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, get_selection))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_SELECTION);
++
+ 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+ 	if (ret) {
+ 		unicam_err(unicam, "Unable to register video device.\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0239-media-bcm2835-unicam-Do-not-stop-streaming-in-unicam.patch b/target/linux/bcm27xx/patches-5.10/950-0239-media-bcm2835-unicam-Do-not-stop-streaming-in-unicam.patch
new file mode 100644
index 0000000000..54b78d639a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0239-media-bcm2835-unicam-Do-not-stop-streaming-in-unicam.patch
@@ -0,0 +1,28 @@
+From 533e6df1f7cc3aa022319f4419b3a38e7b76ce16 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 29 Apr 2020 22:05:09 +0100
+Subject: [PATCH] media: bcm2835-unicam: Do not stop streaming in
+ unicam_release
+
+unicam_release calls _vb2_fop_release, which will call stop_streaming
+if that particular node was streaming. Calling it unconditionally (as
+the code was) means that if a second handle was opened eg to alter
+a setting, on closing that connection it also stopped Unicam.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2204,9 +2204,6 @@ static int unicam_release(struct file *f
+ 	if (fh_singular)
+ 		v4l2_subdev_call(sd, core, s_power, 0);
+ 
+-	if (node->streaming)
+-		unicam_stop_streaming(&node->buffer_queue);
+-
+ 	node->open--;
+ 	mutex_unlock(&node->lock);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch b/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch
new file mode 100644
index 0000000000..5b1ef1b468
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0240-media-bcm2835-unicam-Fix-reference-counting-in-unica.patch
@@ -0,0 +1,38 @@
+From 0d2110a5d2764c80179590e707929d0e6dda0c6d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 30 Apr 2020 09:52:50 +0100
+Subject: [PATCH] media: bcm2835-unicam: Fix reference counting in
+ unicam_open
+
+The reference counting of node->open was only incremented after
+a check that the node was v4l2_fh_is_singular_file, which resulted
+in the counting going wrong and s_power not being called at an
+appropriate time.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2170,16 +2170,18 @@ static int unicam_open(struct file *file
+ 		goto unlock;
+ 	}
+ 
++	node->open++;
++
+ 	if (!v4l2_fh_is_singular_file(file))
+ 		goto unlock;
+ 
+ 	ret = v4l2_subdev_call(dev->sensor, core, s_power, 1);
+ 	if (ret < 0 && ret != -ENOIOCTLCMD) {
+ 		v4l2_fh_release(file);
++		node->open--;
+ 		goto unlock;
+ 	}
+ 
+-	node->open++;
+ 	ret = 0;
+ 
+ unlock:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0241-media-i2c-tc358743-Fix-fallthrough-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0241-media-i2c-tc358743-Fix-fallthrough-warning.patch
new file mode 100644
index 0000000000..819ab16f37
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0241-media-i2c-tc358743-Fix-fallthrough-warning.patch
@@ -0,0 +1,20 @@
+From 973e92cd9ff33dcf24492457e5bae6554f938e23 Mon Sep 17 00:00:00 2001
+From: Jacko Dirks <jdirks.linuxdev@gmail.com>
+Date: Tue, 5 May 2020 14:28:14 +0200
+Subject: [PATCH] media: i2c: tc358743: Fix fallthrough warning
+
+Signed-off-by: Jacko Dirks <jdirks.linuxdev@gmail.com>
+---
+ drivers/media/i2c/tc358743.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -2006,6 +2006,7 @@ static int tc358743_probe_of(struct tc35
+ 	switch (bps_pr_lane) {
+ 	default:
+ 		dev_warn(dev, "untested bps per lane: %u bps\n", bps_pr_lane);
++		/* fall through */
+ 	case 594000000U:
+ 		state->pdata.lineinitcnt = 0xe80;
+ 		state->pdata.lptxtimecnt = 0x003;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0242-media-bcm2835-unicam-Fix-uninitialized-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0242-media-bcm2835-unicam-Fix-uninitialized-warning.patch
new file mode 100644
index 0000000000..83cc78f84e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0242-media-bcm2835-unicam-Fix-uninitialized-warning.patch
@@ -0,0 +1,21 @@
+From 3f024ccec9f9b661a5a7e37760fbc2558095a0a8 Mon Sep 17 00:00:00 2001
+From: Jacko Dirks <jdirks.linuxdev@gmail.com>
+Date: Tue, 5 May 2020 14:33:31 +0200
+Subject: [PATCH] media: bcm2835: unicam: Fix uninitialized warning
+
+Signed-off-by: Jacko Dirks <jdirks.linuxdev@gmail.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1001,7 +1001,7 @@ const struct unicam_fmt *get_first_suppo
+ {
+ 	struct v4l2_subdev_mbus_code_enum mbus_code;
+ 	const struct unicam_fmt *fmt = NULL;
+-	int ret;
++	int ret = 0;
+ 	int j;
+ 
+ 	for (j = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++j) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0243-video-bcm2708_fb-Disable-FB-if-no-displays-found.patch b/target/linux/bcm27xx/patches-5.10/950-0243-video-bcm2708_fb-Disable-FB-if-no-displays-found.patch
new file mode 100644
index 0000000000..a6fc3f1360
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0243-video-bcm2708_fb-Disable-FB-if-no-displays-found.patch
@@ -0,0 +1,34 @@
+From 927defe02be209d870171b385673c58b6dfa6964 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 5 May 2020 19:45:41 +0100
+Subject: [PATCH] video: bcm2708_fb: Disable FB if no displays found
+
+If the firmware hasn't detected a display, the driver would assume
+one display was available, but because it had failed to retrieve the
+display size it would try to allocate a zero-sized buffer.
+
+Avoid the allocation failure by bailing out early if no display is
+found.
+
+See: https://github.com/raspberrypi/linux/issues/3598
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/video/fbdev/bcm2708_fb.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -1092,10 +1092,9 @@ static int bcm2708_fb_probe(struct platf
+ 	 * set one display
+ 	 */
+ 	if (ret || num_displays == 0) {
+-		num_displays = 1;
+ 		dev_err(&dev->dev,
+-			"Unable to determine number of FB's. Assuming 1\n");
+-		ret = 0;
++			"Unable to determine number of FBs. Disabling driver.\n");
++		return -ENOENT;
+ 	} else {
+ 		fbdev->firmware_supports_multifb = 1;
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0244-dt-bindings-media-i2c-Add-IMX477-CMOS-sensor-binding.patch b/target/linux/bcm27xx/patches-5.10/950-0244-dt-bindings-media-i2c-Add-IMX477-CMOS-sensor-binding.patch
new file mode 100644
index 0000000000..0326c85515
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0244-dt-bindings-media-i2c-Add-IMX477-CMOS-sensor-binding.patch
@@ -0,0 +1,130 @@
+From f312f497a22b3a69640d628277f5c56238860bc3 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 7 May 2020 15:50:54 +0100
+Subject: [PATCH] dt-bindings: media: i2c: Add IMX477 CMOS sensor
+ binding
+
+Add YAML device tree binding for IMX477 CMOS image sensor.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../devicetree/bindings/media/i2c/imx477.yaml | 113 ++++++++++++++++++
+ 1 file changed, 113 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/i2c/imx477.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/i2c/imx477.yaml
+@@ -0,0 +1,113 @@
++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/media/i2c/imx477.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Sony 1/2.3-Inch 12Mpixel CMOS Digital Image Sensor
++
++maintainers:
++  - Naushir Patuck <naush@raspberypi.com>
++
++description: |-
++  The Sony IMX477 is a 1/2.3-inch CMOS active pixel digital image sensor
++  with an active array size of 4056H x 3040V. It is programmable through
++  I2C interface. The I2C address is fixed to 0x1A as per sensor data sheet.
++  Image data is sent through MIPI CSI-2, which is configured as either 2 or
++  4 data lanes.
++
++properties:
++  compatible:
++    const: sony,imx477
++
++  reg:
++    description: I2C device address
++    maxItems: 1
++
++  clocks:
++    maxItems: 1
++
++  VDIG-supply:
++    description:
++      Digital I/O voltage supply, 1.05 volts
++
++  VANA-supply:
++    description:
++      Analog voltage supply, 2.8 volts
++
++  VDDL-supply:
++    description:
++      Digital core voltage supply, 1.8 volts
++
++  reset-gpios:
++    description: |-
++      Reference to the GPIO connected to the xclr pin, if any.
++      Must be released (set high) after all all supplies and INCK are applied.
++
++  # See ../video-interfaces.txt for more details
++  port:
++    type: object
++    properties:
++      endpoint:
++        type: object
++        properties:
++          data-lanes:
++            description: |-
++              The sensor supports either two-lane, or four-lane operation.
++              For two-lane operation the property must be set to <1 2>.
++            items:
++              - const: 1
++              - const: 2
++
++          clock-noncontinuous:
++            type: boolean
++            description: |-
++              MIPI CSI-2 clock is non-continuous if this property is present,
++              otherwise it's continuous.
++
++          link-frequencies:
++            allOf:
++              - $ref: /schemas/types.yaml#/definitions/uint64-array
++            description:
++              Allowed data bus frequencies.
++
++        required:
++          - link-frequencies
++
++required:
++  - compatible
++  - reg
++  - clocks
++  - VANA-supply
++  - VDIG-supply
++  - VDDL-supply
++  - port
++
++additionalProperties: false
++
++examples:
++  - |
++    i2c0 {
++        #address-cells = <1>;
++        #size-cells = <0>;
++
++        imx477: sensor@10 {
++            compatible = "sony,imx477";
++            reg = <0x1a>;
++            clocks = <&imx477_clk>;
++            VANA-supply = <&imx477_vana>;   /* 2.8v */
++            VDIG-supply = <&imx477_vdig>;   /* 1.05v */
++            VDDL-supply = <&imx477_vddl>;   /* 1.8v */
++
++            port {
++                imx477_0: endpoint {
++                    remote-endpoint = <&csi1_ep>;
++                    data-lanes = <1 2>;
++                    clock-noncontinuous;
++                    link-frequencies = /bits/ 64 <450000000>;
++                };
++            };
++        };
++    };
++
++...
diff --git a/target/linux/bcm27xx/patches-5.10/950-0245-media-bcm2835-unicam-Always-service-interrupts.patch b/target/linux/bcm27xx/patches-5.10/950-0245-media-bcm2835-unicam-Always-service-interrupts.patch
new file mode 100644
index 0000000000..f863e4694f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0245-media-bcm2835-unicam-Always-service-interrupts.patch
@@ -0,0 +1,51 @@
+From 320838e297c604a51ae37e6e55983c880ced9f42 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 13 May 2020 18:28:27 +0100
+Subject: [PATCH] media: bcm2835-unicam: Always service interrupts
+
+From when bringing up the driver, there was a check in the isr
+to ignore interrupts (claiming them handled) should the driver
+not be streaming.
+
+The VPU now will not register a camera driver if it finds a
+CSI2 node enabled in device tree, therefore this flawed check is
+redundant.
+
+https://github.com/raspberrypi/linux/issues/3602
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 15 ---------------
+ 1 file changed, 15 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -766,12 +766,6 @@ static int unicam_all_nodes_streaming(st
+ 	return ret;
+ }
+ 
+-static int unicam_all_nodes_disabled(struct unicam_device *dev)
+-{
+-	return !dev->node[IMAGE_PAD].streaming &&
+-	       !dev->node[METADATA_PAD].streaming;
+-}
+-
+ static void unicam_queue_event_sof(struct unicam_device *unicam)
+ {
+ 	struct v4l2_event event = {
+@@ -801,15 +795,6 @@ static irqreturn_t unicam_isr(int irq, v
+ 	u64 ts;
+ 	int i;
+ 
+-	/*
+-	 * Don't service interrupts if not streaming.
+-	 * Avoids issues if the VPU should enable the
+-	 * peripheral without the kernel knowing (that
+-	 * shouldn't happen, but causes issues if it does).
+-	 */
+-	if (unicam_all_nodes_disabled(unicam))
+-		return IRQ_HANDLED;
+-
+ 	sta = reg_read(cfg, UNICAM_STA);
+ 	/* Write value back to clear the interrupts */
+ 	reg_write(cfg, UNICAM_STA, sta);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0246-sc16is7xx-Fix-for-hardware-flow-control.patch b/target/linux/bcm27xx/patches-5.10/950-0246-sc16is7xx-Fix-for-hardware-flow-control.patch
new file mode 100644
index 0000000000..aeabd97257
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0246-sc16is7xx-Fix-for-hardware-flow-control.patch
@@ -0,0 +1,70 @@
+From 287fbc1b38d530aef3bc66420db7591808ff9969 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 13 May 2020 20:10:15 +0100
+Subject: [PATCH] sc16is7xx: Fix for hardware flow control
+
+The SC16IS7XX hardware flow control is mishandled by the driver in
+a number of ways:
+
+  1. The set_baud method accidentally clears it when setting EFR bit.
+  2. Even though hardware flow control is enabled, it isn't indicated
+     back to the serial framework.
+  3. Applying the flow control clears the EFR bit.
+  4. The CTS support is not indicated in the return from
+     sc16is7xx_get_mctrl.
+
+Address all of those issues using a mixture of patches found on the
+linked pages.
+
+See: https://github.com/raspberrypi/linux/issues/2542
+See: https://www.spinics.net/lists/linux-serial/msg21794.html
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/tty/serial/sc16is7xx.c | 14 ++++++++++----
+ 1 file changed, 10 insertions(+), 4 deletions(-)
+
+--- a/drivers/tty/serial/sc16is7xx.c
++++ b/drivers/tty/serial/sc16is7xx.c
+@@ -523,8 +523,9 @@ static int sc16is7xx_set_baud(struct uar
+ 
+ 	/* Enable enhanced features */
+ 	regcache_cache_bypass(s->regmap, true);
+-	sc16is7xx_port_write(port, SC16IS7XX_EFR_REG,
+-			     SC16IS7XX_EFR_ENABLE_BIT);
++	sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
++			      SC16IS7XX_EFR_ENABLE_BIT,
++			      SC16IS7XX_EFR_ENABLE_BIT);
+ 	regcache_cache_bypass(s->regmap, false);
+ 
+ 	/* Put LCR back to the normal mode */
+@@ -839,7 +840,7 @@ static unsigned int sc16is7xx_get_mctrl(
+ 	/* DCD and DSR are not wired and CTS/RTS is handled automatically
+ 	 * so just indicate DSR and CAR asserted
+ 	 */
+-	return TIOCM_DSR | TIOCM_CAR;
++	return TIOCM_DSR | TIOCM_CAR | TIOCM_RI | TIOCM_CTS;
+ }
+ 
+ static void sc16is7xx_set_mctrl(struct uart_port *port, unsigned int mctrl)
+@@ -926,14 +927,19 @@ static void sc16is7xx_set_termios(struct
+ 	regcache_cache_bypass(s->regmap, true);
+ 	sc16is7xx_port_write(port, SC16IS7XX_XON1_REG, termios->c_cc[VSTART]);
+ 	sc16is7xx_port_write(port, SC16IS7XX_XOFF1_REG, termios->c_cc[VSTOP]);
+-	if (termios->c_cflag & CRTSCTS)
++	if (termios->c_cflag & CRTSCTS) {
+ 		flow |= SC16IS7XX_EFR_AUTOCTS_BIT |
+ 			SC16IS7XX_EFR_AUTORTS_BIT;
++		port->status |= UPSTAT_AUTOCTS;
++	};
+ 	if (termios->c_iflag & IXON)
+ 		flow |= SC16IS7XX_EFR_SWFLOW3_BIT;
+ 	if (termios->c_iflag & IXOFF)
+ 		flow |= SC16IS7XX_EFR_SWFLOW1_BIT;
+ 
++	/* Always set enable enhanced */
++	flow |= SC16IS7XX_EFR_ENABLE_BIT;
++
+ 	sc16is7xx_port_write(port, SC16IS7XX_EFR_REG, flow);
+ 	regcache_cache_bypass(s->regmap, false);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0247-staging-vc04_services-mmal-vchiq-Update-parameters-l.patch b/target/linux/bcm27xx/patches-5.10/950-0247-staging-vc04_services-mmal-vchiq-Update-parameters-l.patch
new file mode 100644
index 0000000000..3a113a1d3f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0247-staging-vc04_services-mmal-vchiq-Update-parameters-l.patch
@@ -0,0 +1,28 @@
+From c50cbae8ecdd826ce9b710ce405ff8b459b0b781 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 15 May 2020 13:42:10 +0100
+Subject: [PATCH] staging: vc04_services: mmal-vchiq: Update parameters
+ list
+
+Adds in a couple of new MMAL parameter defines.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -612,6 +612,12 @@ enum mmal_parameter_video_type {
+ 
+ 	/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
+ 	MMAL_PARAMETER_VIDEO_DROPPABLE_PFRAME_LENGTH,
++
++	/**< Take a @ref MMAL_PARAMETER_VIDEO_STALL_T */
++	MMAL_PARAMETER_VIDEO_STALL_THRESHOLD,
++
++	/**< Take a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
+ };
+ 
+ /** Valid mirror modes */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0248-staging-vc04_services-bcm2835-camera-Request-headers.patch b/target/linux/bcm27xx/patches-5.10/950-0248-staging-vc04_services-bcm2835-camera-Request-headers.patch
new file mode 100644
index 0000000000..a2efc1d214
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0248-staging-vc04_services-bcm2835-camera-Request-headers.patch
@@ -0,0 +1,30 @@
+From 1f0594a0dedb69f45c414fb05683921ef79b65b9 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 15 May 2020 13:48:59 +0100
+Subject: [PATCH] staging:vc04_services: bcm2835-camera: Request
+ headers with I-frame
+
+V4L2 wishes to have the codec header bytes in the same buffer as the
+first encoded frame, so it does become 1-in 1-out for encoding.
+The firmware now has an option to do this, so enable it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/bcm2835-camera/bcm2835-camera.c   | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -1734,6 +1734,12 @@ static int mmal_init(struct bm2835_mmal_
+ 					      MMAL_PARAMETER_MINIMISE_FRAGMENTATION,
+ 					      &enable,
+ 					      sizeof(enable));
++
++		/* Enable inserting headers into the first frame */
++		vchiq_mmal_port_parameter_set(dev->instance,
++					      &dev->component[COMP_VIDEO_ENCODE]->control,
++					      MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
++					      &enable, sizeof(enable));
+ 	}
+ 	ret = bm2835_mmal_set_all_camera_controls(dev);
+ 	if (ret < 0) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0249-kbuild-Disable-gcc-plugins.patch b/target/linux/bcm27xx/patches-5.10/950-0249-kbuild-Disable-gcc-plugins.patch
new file mode 100644
index 0000000000..f3a0b33a92
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0249-kbuild-Disable-gcc-plugins.patch
@@ -0,0 +1,28 @@
+From 4c6ffdf90a3a982fa11676faf658eebfd000867b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 8 Apr 2020 15:23:56 +0100
+Subject: [PATCH] kbuild: Disable gcc plugins
+
+The GCC plugin feature leads to different kernel configurations on what
+ought to be equivalent build systems because they depend on the build
+hosts native compilers rather than the cross compilers needed for the
+target. This causes problems with module symbol version mismatches.
+
+Disable GCC plugins for all build hosts.
+
+Advanced build script hackery borrowed from a patch by milhouse.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ scripts/gcc-plugin.sh | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/scripts/gcc-plugin.sh
++++ b/scripts/gcc-plugin.sh
+@@ -1,5 +1,6 @@
+ #!/bin/sh
+ # SPDX-License-Identifier: GPL-2.0
++exit 1 # Disable plugins
+ 
+ set -e
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0250-media-bcm2835-unicam-Retain-packing-information-on-G.patch b/target/linux/bcm27xx/patches-5.10/950-0250-media-bcm2835-unicam-Retain-packing-information-on-G.patch
new file mode 100644
index 0000000000..0c94a803ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0250-media-bcm2835-unicam-Retain-packing-information-on-G.patch
@@ -0,0 +1,48 @@
+From 9e8d2ff820bdc215ea0d06feb3fd95960cbeda6f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 19 May 2020 11:46:47 +0100
+Subject: [PATCH] media: bcm2835-unicam: Retain packing information on
+ G_FMT
+
+The change to retrieve the pixel format always on g_fmt didn't
+check whether the native or unpacked version of the format
+had been requested, and always returned the packed one.
+Correct this so that the packing setting is retained whereever
+possible.
+
+Fixes "9d59e89 media: bcm2835-unicam: Re-fetch mbus code from subdev
+on a g_fmt call"
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -974,8 +974,23 @@ static int unicam_g_fmt_vid_cap(struct f
+ 	if (!fmt)
+ 		return -EINVAL;
+ 
+-	node->fmt = fmt;
+-	node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++	if (node->fmt != fmt) {
++		/*
++		 * The sensor format has changed so the pixelformat needs to
++		 * be updated. Try and retain the packed/unpacked choice if
++		 * at all possible.
++		 */
++		if (node->fmt->repacked_fourcc ==
++						node->v_fmt.fmt.pix.pixelformat)
++			/* Using the repacked format */
++			node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
++		else
++			/* Using the native format */
++			node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++
++		node->fmt = fmt;
++	}
++
+ 	*f = node->v_fmt;
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0251-zswap-Defer-zswap-initialisation.patch b/target/linux/bcm27xx/patches-5.10/950-0251-zswap-Defer-zswap-initialisation.patch
new file mode 100644
index 0000000000..111d7dcfc3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0251-zswap-Defer-zswap-initialisation.patch
@@ -0,0 +1,125 @@
+From 164ec4ae01c28cd627d085c19f5e1c631b4cccff Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 5 May 2020 15:23:32 +0100
+Subject: [PATCH] zswap: Defer zswap initialisation
+
+Enabling zswap support in the kernel configuration costs about 1.5MB
+of RAM, even when zswap is not enabled at runtime. This cost can be
+reduced significantly by deferring initialisation (including pool
+creation) until the "enabled" parameter is set to true. There is a
+small cost to this in that some initialisation code has to remain in
+memory after the init phase, just in case they are needed later,
+but the total size increase is negligible.
+
+See: https://github.com/raspberrypi/linux/pull/3432
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ mm/zswap.c | 53 +++++++++++++++++++++++++++++------------------------
+ 1 file changed, 29 insertions(+), 24 deletions(-)
+
+--- a/mm/zswap.c
++++ b/mm/zswap.c
+@@ -592,8 +592,9 @@ error:
+ 	return NULL;
+ }
+ 
+-static __init struct zswap_pool *__zswap_pool_create_fallback(void)
++static bool zswap_try_pool_create(void)
+ {
++	struct zswap_pool *pool;
+ 	bool has_comp, has_zpool;
+ 
+ 	has_comp = crypto_has_comp(zswap_compressor, 0, 0);
+@@ -629,9 +630,21 @@ static __init struct zswap_pool *__zswap
+ 	}
+ 
+ 	if (!has_comp || !has_zpool)
+-		return NULL;
++		return false;
++
++	pool = zswap_pool_create(zswap_zpool_type, zswap_compressor);
+ 
+-	return zswap_pool_create(zswap_zpool_type, zswap_compressor);
++	if (pool) {
++		pr_info("loaded using pool %s/%s\n", pool->tfm_name,
++			zpool_get_type(pool->zpool));
++		list_add(&pool->list, &zswap_pools);
++		zswap_has_pool = true;
++	} else {
++		pr_err("pool creation failed\n");
++		zswap_enabled = false;
++	}
++
++	return zswap_enabled;
+ }
+ 
+ static void zswap_pool_destroy(struct zswap_pool *pool)
+@@ -804,16 +817,19 @@ static int zswap_zpool_param_set(const c
+ static int zswap_enabled_param_set(const char *val,
+ 				   const struct kernel_param *kp)
+ {
++	int ret;
++
+ 	if (zswap_init_failed) {
+ 		pr_err("can't enable, initialization failed\n");
+ 		return -ENODEV;
+ 	}
+-	if (!zswap_has_pool && zswap_init_started) {
+-		pr_err("can't enable, no pool configured\n");
+-		return -ENODEV;
+-	}
+ 
+-	return param_set_bool(val, kp);
++	ret = param_set_bool(val, kp);
++	if (!ret && zswap_enabled && zswap_init_started && !zswap_has_pool)
++		if (!zswap_try_pool_create())
++			ret = -ENODEV;
++
++	return ret;
+ }
+ 
+ /*********************************
+@@ -1314,7 +1330,6 @@ static void __exit zswap_debugfs_exit(vo
+ **********************************/
+ static int __init init_zswap(void)
+ {
+-	struct zswap_pool *pool;
+ 	int ret;
+ 
+ 	zswap_init_started = true;
+@@ -1338,29 +1353,19 @@ static int __init init_zswap(void)
+ 	if (ret)
+ 		goto hp_fail;
+ 
+-	pool = __zswap_pool_create_fallback();
+-	if (pool) {
+-		pr_info("loaded using pool %s/%s\n", pool->tfm_name,
+-			zpool_get_type(pool->zpool));
+-		list_add(&pool->list, &zswap_pools);
+-		zswap_has_pool = true;
+-	} else {
+-		pr_err("pool creation failed\n");
+-		zswap_enabled = false;
+-	}
+-
+ 	shrink_wq = create_workqueue("zswap-shrink");
+ 	if (!shrink_wq)
+-		goto fallback_fail;
++		goto hp_fail;
+ 
+ 	frontswap_register_ops(&zswap_frontswap_ops);
+ 	if (zswap_debugfs_init())
+ 		pr_warn("debugfs initialization failed\n");
++
++	if (zswap_enabled)
++		zswap_try_pool_create();
++
+ 	return 0;
+ 
+-fallback_fail:
+-	if (pool)
+-		zswap_pool_destroy(pool);
+ hp_fail:
+ 	cpuhp_remove_state(CPUHP_MM_ZSWP_MEM_PREPARE);
+ dstmem_fail:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0252-SQUASH-pinctrl-bcm2835-Set-base-for-bcm2711-GPIO-to-.patch b/target/linux/bcm27xx/patches-5.10/950-0252-SQUASH-pinctrl-bcm2835-Set-base-for-bcm2711-GPIO-to-.patch
new file mode 100644
index 0000000000..95ced63872
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0252-SQUASH-pinctrl-bcm2835-Set-base-for-bcm2711-GPIO-to-.patch
@@ -0,0 +1,27 @@
+From abc82e964df6c13999cff7b148b12efb255f19aa Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 22 May 2020 11:35:33 +0100
+Subject: [PATCH] SQUASH: pinctrl: bcm2835: Set base for bcm2711 GPIO
+ to 0
+
+Without this patch GPIOs don't seem to work properly, primarily
+noticeable as broken LEDs.
+
+Squash with "pinctrl-bcm2835: Set base to 0 give expected gpio numbering"
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+@@ -378,7 +378,7 @@ static const struct gpio_chip bcm2711_gp
+ 	.get = bcm2835_gpio_get,
+ 	.set = bcm2835_gpio_set,
+ 	.set_config = gpiochip_generic_config,
+-	.base = -1,
++	.base = 0,
+ 	.ngpio = BCM2711_NUM_GPIOS,
+ 	.can_sleep = false,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0253-staging-vchiq_arm-Clean-up-40-bit-DMA-support.patch b/target/linux/bcm27xx/patches-5.10/950-0253-staging-vchiq_arm-Clean-up-40-bit-DMA-support.patch
new file mode 100644
index 0000000000..b9d4c1701b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0253-staging-vchiq_arm-Clean-up-40-bit-DMA-support.patch
@@ -0,0 +1,174 @@
+From 461092c036303037c0efe37002079ce6e9ed8ba5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 20 May 2020 16:36:33 +0100
+Subject: [PATCH] staging: vchiq_arm: Clean up 40-bit DMA support
+
+Manage the split between addresses for the VPU and addresses for the
+40-bit DMA controller with a dedicated DMA device pointer that on non-
+BCM2711 platforms is the same as the main VCHIQ device. This allows
+the VCHIQ node to stay in the usual place in the DT, and removes the
+ugly VC_SAFE macros.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+
+staging: vchiq_arm: Use g_dma_dev for dma_unmap_sg
+
+Commit "staging: vchiq_arm: Clean up 40-bit DMA support" failed to
+change one of the calls to dma_unmap_sg to pass in g_dma_dev (rather
+than g_dev). Correct that oversight.
+
+See: https://github.com/raspberrypi/linux/issues/3647
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../interface/vchiq_arm/vchiq_2835_arm.c      | 42 ++++++++++++-------
+ .../interface/vchiq_arm/vchiq_arm.c           | 14 -------
+ 2 files changed, 27 insertions(+), 29 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+@@ -16,8 +16,6 @@
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+ 
+ #define TOTAL_SLOTS (VCHIQ_SLOT_ZERO_SLOTS + 2 * 32)
+-#define VC_SAFE(x) (g_use_36bit_addrs ? ((u32)(x) | 0xc0000000) : (u32)(x))
+-#define IS_VC_SAFE(x) (g_use_36bit_addrs ? !((x) & ~0x3fffffffull) : 1)
+ 
+ #include "vchiq_arm.h"
+ #include "vchiq_connected.h"
+@@ -66,6 +64,7 @@ static char *g_fragments_base;
+ static char *g_free_fragments;
+ static struct semaphore g_free_fragments_sema;
+ static struct device *g_dev;
++static struct device *g_dma_dev;
+ 
+ static DEFINE_SEMAPHORE(g_free_fragments_mutex);
+ 
+@@ -82,6 +81,7 @@ free_pagelist(struct vchiq_pagelist_info
+ int vchiq_platform_init(struct platform_device *pdev, struct vchiq_state *state)
+ {
+ 	struct device *dev = &pdev->dev;
++	struct device *dma_dev = NULL;
+ 	struct vchiq_drvdata *drvdata = platform_get_drvdata(pdev);
+ 	struct rpi_firmware *fw = drvdata->fw;
+ 	struct vchiq_slot_zero *vchiq_slot_zero;
+@@ -103,7 +103,23 @@ int vchiq_platform_init(struct platform_
+ 	g_cache_line_size = drvdata->cache_line_size;
+ 	g_fragments_size = 2 * g_cache_line_size;
+ 
+-	g_use_36bit_addrs = (dev->dma_pfn_offset == 0);
++	if (drvdata->use_36bit_addrs) {
++		struct device_node *dma_node =
++			of_find_compatible_node(NULL, NULL, "brcm,bcm2711-dma");
++
++		if (dma_node) {
++			struct platform_device *pdev;
++
++			pdev = of_find_device_by_node(dma_node);
++			if (pdev)
++				dma_dev = &pdev->dev;
++			of_node_put(dma_node);
++			g_use_36bit_addrs = true;
++		} else {
++			dev_err(dev, "40-bit DMA controller not found\n");
++			return -EINVAL;
++		}
++	}
+ 
+ 	/* Allocate space for the channels in coherent memory */
+ 	slot_mem_size = PAGE_ALIGN(TOTAL_SLOTS * VCHIQ_SLOT_SIZE);
+@@ -116,14 +132,8 @@ int vchiq_platform_init(struct platform_
+ 		return -ENOMEM;
+ 	}
+ 
+-	if (!IS_VC_SAFE(slot_phys)) {
+-		dev_err(dev, "allocated DMA memory %pad is not VC-safe\n",
+-			&slot_phys);
+-		return -ENOMEM;
+-	}
+-
+ 	WARN_ON(((unsigned long)slot_mem & (PAGE_SIZE - 1)) != 0);
+-	channelbase = VC_SAFE(slot_phys);
++	channelbase = slot_phys;
+ 
+ 	vchiq_slot_zero = vchiq_init_slots(slot_mem, slot_mem_size);
+ 	if (!vchiq_slot_zero)
+@@ -171,6 +181,8 @@ int vchiq_platform_init(struct platform_
+ 	}
+ 
+ 	g_dev = dev;
++	g_dma_dev = dma_dev ?: dev;
++
+ 	vchiq_log_info(vchiq_arm_log_level,
+ 		"vchiq_init - done (slots %pK, phys %pad)",
+ 		vchiq_slot_zero, &slot_phys);
+@@ -240,7 +252,7 @@ vchiq_prepare_bulk_data(struct vchiq_bul
+ 	if (!pagelistinfo)
+ 		return VCHIQ_ERROR;
+ 
+-	bulk->data = (void *)VC_SAFE(pagelistinfo->dma_addr);
++	bulk->data = pagelistinfo->dma_addr;
+ 
+ 	/*
+ 	 * Store the pagelistinfo address in remote_data,
+@@ -295,7 +307,7 @@ static void
+ cleanup_pagelistinfo(struct vchiq_pagelist_info *pagelistinfo)
+ {
+ 	if (pagelistinfo->scatterlist_mapped) {
+-		dma_unmap_sg(g_dev, pagelistinfo->scatterlist,
++		dma_unmap_sg(g_dma_dev, pagelistinfo->scatterlist,
+ 			     pagelistinfo->num_pages, pagelistinfo->dma_dir);
+ 	}
+ 
+@@ -444,7 +456,7 @@ create_pagelist(char *buf, char __user *
+ 		count -= len;
+ 	}
+ 
+-	dma_buffers = dma_map_sg(g_dev,
++	dma_buffers = dma_map_sg(g_dma_dev,
+ 				 scatterlist,
+ 				 num_pages,
+ 				 pagelistinfo->dma_dir);
+@@ -494,7 +506,7 @@ create_pagelist(char *buf, char __user *
+ 	} else {
+ 		for_each_sg(scatterlist, sg, dma_buffers, i) {
+ 			u32 len = sg_dma_len(sg);
+-			u32 addr = VC_SAFE(sg_dma_address(sg));
++			u32 addr = sg_dma_address(sg);
+ 			u32 new_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ 
+ 			/* Note: addrs is the address + page_count - 1
+@@ -555,7 +567,7 @@ free_pagelist(struct vchiq_pagelist_info
+ 	 * NOTE: dma_unmap_sg must be called before the
+ 	 * cpu can touch any of the data/pages.
+ 	 */
+-	dma_unmap_sg(g_dev, pagelistinfo->scatterlist,
++	dma_unmap_sg(g_dma_dev, pagelistinfo->scatterlist,
+ 		     pagelistinfo->num_pages, pagelistinfo->dma_dir);
+ 	pagelistinfo->scatterlist_mapped = 0;
+ 
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -2720,22 +2720,8 @@ vchiq_register_child(struct platform_dev
+ 
+ 	child->dev.of_node = np;
+ 
+-	/*
+-	 * We want the dma-ranges etc to be copied from a device with the
+-	 * correct dma-ranges for the VPU.
+-	 * VCHIQ on Pi4 is now under scb which doesn't get those dma-ranges.
+-	 * Take the "dma" node as going to be suitable as it sees the world
+-	 * through the same eyes as the VPU.
+-	 */
+-	np = of_find_node_by_path("dma");
+-	if (!np)
+-		np = pdev->dev.of_node;
+-
+ 	of_dma_configure(&child->dev, np, true);
+ 
+-	if (np != pdev->dev.of_node)
+-		of_node_put(np);
+-
+ 	return child;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch b/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch
new file mode 100644
index 0000000000..6421bcfc76
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch
@@ -0,0 +1,28 @@
+From f858ff156427e99d5abeebc80c666caab33b3637 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Thu, 28 May 2020 11:09:48 +0100
+Subject: [PATCH] media: bcm2835-unicam: change minimum number of
+ vb2_queue buffers to 1
+
+Since the unicam driver was modified to write to a dummy buffer when no
+user-supplied buffer is available, it can now write to and return a
+buffer even when there's only a single one. Enable this by changing the
+min_buffers_needed in the vb2_queue; it will be useful for enabling
+still captures without allocating more memory than absolutely necessary.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2404,7 +2404,7 @@ static int register_node(struct unicam_d
+ 	q->buf_struct_size = sizeof(struct unicam_buffer);
+ 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ 	q->lock = &node->lock;
+-	q->min_buffers_needed = 2;
++	q->min_buffers_needed = 1;
+ 	q->dev = &unicam->pdev->dev;
+ 
+ 	ret = vb2_queue_init(q);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch b/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch
new file mode 100644
index 0000000000..50eccbfbd9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch
@@ -0,0 +1,33 @@
+From d9d1244f8aa9d776073e2a12e0cb9542d89bd3cb Mon Sep 17 00:00:00 2001
+From: Hristo Venev <hristo@venev.name>
+Date: Fri, 5 Jun 2020 09:22:49 +0000
+Subject: [PATCH] snd_bcm2835: disable HDMI audio when vc4 is used
+ (#3640)
+
+Things don't work too well when both the vc4 driver and the firmware
+driver are trying to control the same audio output:
+
+[  763.569406] bcm2835_audio bcm2835_audio: vchi message timeout, msg=5
+
+Hence, when the vc4 HDMI driver is used, let it control audio. This is done
+by introducing a new device tree property to the audio node, and
+extending the vc4-kms-v3d overlays to set it appropriately.
+
+Signed-off-by: Hristo Venev <hristo@venev.name>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -381,7 +381,9 @@ static int snd_bcm2835_alsa_probe(struct
+ 	}
+ 
+ 	if (!enable_compat_alsa) {
+-		set_hdmi_enables(dev);
++		if (!of_property_read_bool(dev->of_node, "brcm,disable-hdmi"))
++			set_hdmi_enables(dev);
++
+ 		// In this mode, always enable analog output
+ 		enable_headphones = true;
+ 	} else {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0256-gpiolib-Don-t-prevent-IRQ-usage-of-output-GPIOs.patch b/target/linux/bcm27xx/patches-5.10/950-0256-gpiolib-Don-t-prevent-IRQ-usage-of-output-GPIOs.patch
new file mode 100644
index 0000000000..4defea7e16
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0256-gpiolib-Don-t-prevent-IRQ-usage-of-output-GPIOs.patch
@@ -0,0 +1,50 @@
+From 205dc5dbd2b1978f5c75daa0afabf0cf15c8e1fe Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 24 Apr 2018 14:42:27 +0100
+Subject: [PATCH] gpiolib: Don't prevent IRQ usage of output GPIOs
+
+Upstream Linux deems using output GPIOs to generate IRQs as a bogus
+use case, even though the BCM2835 GPIO controller is capable of doing
+so. A number of users would like to make use of this facility, so
+disable the checks.
+
+See: https://github.com/raspberrypi/linux/issues/2527
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpio/gpiolib.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -51,6 +51,8 @@
+ #define	extra_checks	0
+ #endif
+ 
++#define dont_test_bit(b,d) (0)
++
+ /* Device and char device-related information */
+ static DEFINE_IDA(gpio_ida);
+ static dev_t gpio_devt;
+@@ -2444,8 +2446,8 @@ int gpiod_direction_output(struct gpio_d
+ 		value = !!value;
+ 
+ 	/* GPIOs used for enabled IRQs shall not be set as output */
+-	if (test_bit(FLAG_USED_AS_IRQ, &desc->flags) &&
+-	    test_bit(FLAG_IRQ_IS_ENABLED, &desc->flags)) {
++	if (dont_test_bit(FLAG_USED_AS_IRQ, &desc->flags) &&
++	    dont_test_bit(FLAG_IRQ_IS_ENABLED, &desc->flags)) {
+ 		gpiod_err(desc,
+ 			  "%s: tried to set a GPIO tied to an IRQ as output\n",
+ 			  __func__);
+@@ -3250,8 +3252,8 @@ int gpiochip_lock_as_irq(struct gpio_chi
+ 	}
+ 
+ 	/* To be valid for IRQ the line needs to be input or open drain */
+-	if (test_bit(FLAG_IS_OUT, &desc->flags) &&
+-	    !test_bit(FLAG_OPEN_DRAIN, &desc->flags)) {
++	if (dont_test_bit(FLAG_IS_OUT, &desc->flags) &&
++	    !dont_test_bit(FLAG_OPEN_DRAIN, &desc->flags)) {
+ 		chip_err(gc,
+ 			 "%s: tried to flag a GPIO set as output for IRQ\n",
+ 			 __func__);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0257-PCI-brcmstb-Add-DT-property-to-control-L1SS.patch b/target/linux/bcm27xx/patches-5.10/950-0257-PCI-brcmstb-Add-DT-property-to-control-L1SS.patch
new file mode 100644
index 0000000000..77c2239a5d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0257-PCI-brcmstb-Add-DT-property-to-control-L1SS.patch
@@ -0,0 +1,79 @@
+From 9bb199ebcdb864f9ec5df0e168df4a25820482ea Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 11 Jun 2020 09:57:03 +0100
+Subject: [PATCH] PCI: brcmstb: Add DT property to control L1SS
+
+The BRCM PCIe block has controls to enable control of the CLKREQ#
+signal by the L1SS, and to gate the refclk with the CLKREQ# input.
+These controls are mutually exclusive - the upstream code sets the
+latter, but some use cases require the former.
+
+Add a Device Tree property - brcm,enable-l1ss - to switch to the
+L1SS configuration.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/pci/controller/pcie-brcmstb.c | 30 ++++++++++++++++++++-------
+ 1 file changed, 23 insertions(+), 7 deletions(-)
+
+--- a/drivers/pci/controller/pcie-brcmstb.c
++++ b/drivers/pci/controller/pcie-brcmstb.c
+@@ -114,8 +114,9 @@
+ 		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_LIMIT_HI + ((win) * 8)
+ 
+ #define PCIE_MISC_HARD_PCIE_HARD_DEBUG					0x4204
+-#define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK	0x2
+-#define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK		0x08000000
++#define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK	BIT(1)
++#define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_L1SS_ENABLE_MASK		BIT(21)
++#define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK		BIT(27)
+ 
+ 
+ #define PCIE_INTR2_CPU_BASE		0x4300
+@@ -276,6 +277,7 @@ struct brcm_pcie {
+ 	struct clk		*clk;
+ 	struct device_node	*np;
+ 	bool			ssc;
++	bool			l1ss;
+ 	int			gen;
+ 	u64			msi_target_addr;
+ 	struct brcm_msi		*msi;
+@@ -1025,12 +1027,25 @@ static int brcm_pcie_setup(struct brcm_p
+ 		PCIE_RC_CFG_VENDOR_VENDOR_SPECIFIC_REG1_ENDIAN_MODE_BAR2_MASK);
+ 	writel(tmp, base + PCIE_RC_CFG_VENDOR_VENDOR_SPECIFIC_REG1);
+ 
+-	/*
+-	 * Refclk from RC should be gated with CLKREQ# input when ASPM L0s,L1
+-	 * is enabled => setting the CLKREQ_DEBUG_ENABLE field to 1.
+-	 */
+ 	tmp = readl(base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+-	tmp |= PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK;
++	if (pcie->l1ss) {
++		/*
++		 * Enable CLKREQ# signalling include L1 Substate control of
++		 * the CLKREQ# signal and the external reference clock buffer.
++		 * meet requirement for Endpoints that require CLKREQ#
++		 * assertion to clock active within 400ns.
++		 */
++		tmp &= ~PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK;
++		tmp |= PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_L1SS_ENABLE_MASK;
++	} else {
++		/*
++		 * Refclk from RC should be gated with CLKREQ# input when
++		 * ASPM L0s,L1 is enabled => setting the CLKREQ_DEBUG_ENABLE
++		 * field to 1.
++		 */
++		tmp &= ~PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_L1SS_ENABLE_MASK;
++		tmp |= PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK;
++	}
+ 	writel(tmp, base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+ 
+ 	return 0;
+@@ -1251,6 +1266,7 @@ static int brcm_pcie_probe(struct platfo
+ 	pcie->gen = (ret < 0) ? 0 : ret;
+ 
+ 	pcie->ssc = of_property_read_bool(np, "brcm,enable-ssc");
++	pcie->l1ss = of_property_read_bool(np, "brcm,enable-l1ss");
+ 
+ 	ret = clk_prepare_enable(pcie->clk);
+ 	if (ret) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0258-media-irs1125-Using-i2c_transfer-for-ic2-reads.patch b/target/linux/bcm27xx/patches-5.10/950-0258-media-irs1125-Using-i2c_transfer-for-ic2-reads.patch
new file mode 100644
index 0000000000..a9d47a6ef4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0258-media-irs1125-Using-i2c_transfer-for-ic2-reads.patch
@@ -0,0 +1,65 @@
+From 1123bcc35585a13cc25c6802f8d3968d185d7f9a Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Tue, 16 Jun 2020 13:24:31 +0200
+Subject: [PATCH] media: irs1125: Using i2c_transfer for ic2 reads
+
+Reading data over i2c is done by using i2c_transfer to ensure that this
+operation can't be interrupted.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ drivers/media/i2c/irs1125.c | 37 ++++++++++++++++++++++---------------
+ 1 file changed, 22 insertions(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/irs1125.c
++++ b/drivers/media/i2c/irs1125.c
+@@ -248,27 +248,34 @@ static int irs1125_write(struct v4l2_sub
+ 
+ static int irs1125_read(struct v4l2_subdev *sd, u16 reg, u16 *val)
+ {
+-	int ret;
+-	unsigned char data_w[2] = { reg >> 8, reg & 0xff };
+-	char rdval[2];
+-
+ 	struct i2c_client *client = v4l2_get_subdevdata(sd);
++	struct i2c_msg msgs[2];
++	u8 addr_buf[2] = { reg >> 8, reg & 0xff };
++	u8 data_buf[2] = { 0, };
++	int ret;
+ 
+-	ret = i2c_master_send(client, data_w, 2);
+-	if (ret < 0) {
+-		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
+-			__func__, reg);
++	/* Write register address */
++	msgs[0].addr = client->addr;
++	msgs[0].flags = 0;
++	msgs[0].len = ARRAY_SIZE(addr_buf);
++	msgs[0].buf = addr_buf;
++
++	/* Read data from register */
++	msgs[1].addr = client->addr;
++	msgs[1].flags = I2C_M_RD;
++	msgs[1].len = 2;
++	msgs[1].buf = data_buf;
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++	if (ret != ARRAY_SIZE(msgs)) {
++		if (ret >= 0)
++			ret = -EIO;
+ 		return ret;
+ 	}
+ 
+-	ret = i2c_master_recv(client, rdval, 2);
+-	if (ret < 0)
+-		dev_err(&client->dev, "%s: i2c read error, reg: %x\n",
+-			__func__, reg);
+-
+-	*val = rdval[1] | (rdval[0] << 8);
++	*val = data_buf[1] | (data_buf[0] << 8);
+ 
+-	return ret;
++	return 0;
+ }
+ 
+ static int irs1125_write_array(struct v4l2_subdev *sd,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0259-media-irs1125-Refactoring-and-debug-messages.patch b/target/linux/bcm27xx/patches-5.10/950-0259-media-irs1125-Refactoring-and-debug-messages.patch
new file mode 100644
index 0000000000..b9aedb6546
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0259-media-irs1125-Refactoring-and-debug-messages.patch
@@ -0,0 +1,123 @@
+From 77ec8aff3939654e3c5fadff77252f0c0c4cb685 Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Tue, 16 Jun 2020 13:27:42 +0200
+Subject: [PATCH] media: irs1125: Refactoring and debug messages
+
+Changed some variable names to comply with checkpatch --strict mode.
+Debug messages added.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ drivers/media/i2c/irs1125.c | 36 ++++++++++++++++++++----------------
+ 1 file changed, 20 insertions(+), 16 deletions(-)
+
+--- a/drivers/media/i2c/irs1125.c
++++ b/drivers/media/i2c/irs1125.c
+@@ -15,6 +15,7 @@
+ #include "irs1125.h"
+ #include <linux/clk.h>
+ #include <linux/delay.h>
++#include <linux/firmware.h>
+ #include <linux/gpio/consumer.h>
+ #include <linux/i2c.h>
+ #include <linux/init.h>
+@@ -22,13 +23,13 @@
+ #include <linux/module.h>
+ #include <linux/of_graph.h>
+ #include <linux/slab.h>
++#include <linux/types.h>
+ #include <linux/videodev2.h>
+-#include <linux/firmware.h>
++#include <media/v4l2-ctrls.h>
+ #include <media/v4l2-device.h>
+ #include <media/v4l2-fwnode.h>
+ #include <media/v4l2-image-sizes.h>
+ #include <media/v4l2-mediabus.h>
+-#include <media/v4l2-ctrls.h>
+ 
+ #define CHECK_BIT(val, pos) ((val) & BIT(pos))
+ 
+@@ -38,18 +39,19 @@
+ 
+ #define IRS1125_ALTERNATE_FW "irs1125_af.bin"
+ 
+-#define IRS1125_REG_CSICFG       0xA882
+-#define IRS1125_REG_DESIGN_STEP	 0xB0AD
+-#define IRS1125_REG_EFUSEVAL2	 0xB09F
+-#define IRS1125_REG_EFUSEVAL3	 0xB0A0
+-#define IRS1125_REG_EFUSEVAL4	 0xB0A1
+-#define IRS1125_REG_DMEM_SHADOW	 0xC320
++#define IRS1125_REG_SAFE_RECONFIG	0xA850
++#define IRS1125_REG_CSICFG		0xA882
++#define IRS1125_REG_DESIGN_STEP		0xB0AD
++#define IRS1125_REG_EFUSEVAL2		0xB09F
++#define IRS1125_REG_EFUSEVAL3		0xB0A0
++#define IRS1125_REG_EFUSEVAL4		0xB0A1
++#define IRS1125_REG_DMEM_SHADOW		0xC320
+ 
+-#define IRS1125_DESIGN_STEP_EXPECTED 0x0a12
++#define IRS1125_DESIGN_STEP_EXPECTED	0x0a12
+ 
+ #define IRS1125_ROW_START_DEF		0
+ #define IRS1125_COLUMN_START_DEF	0
+-#define IRS1125_WINDOW_HEIGHT_DEF	 288
++#define IRS1125_WINDOW_HEIGHT_DEF	288
+ #define IRS1125_WINDOW_WIDTH_DEF	352
+ 
+ struct regval_list {
+@@ -87,7 +89,7 @@ static inline struct irs1125 *to_state(s
+ 	return container_of(sd, struct irs1125, sd);
+ }
+ 
+-static struct regval_list irs1125_26MHz[] = {
++static struct regval_list irs1125_26mhz[] = {
+ 	{0xB017, 0x0413},
+ 	{0xB086, 0x3535},
+ 	{0xB0AE, 0xEF02},
+@@ -153,7 +155,7 @@ static struct regval_list irs1125_26MHz[
+ 	{0xFFFF, 100}
+ };
+ 
+-static struct regval_list irs1125_seq_cfg[] = {
++static struct regval_list irs1125_seq_cfg_init[] = {
+ 	{0xC3A0, 0x823D},
+ 	{0xC3A1, 0xB13B},
+ 	{0xC3A2, 0x0313},
+@@ -243,6 +245,7 @@ static int irs1125_write(struct v4l2_sub
+ 		dev_err(&client->dev, "%s: i2c write error, reg: %x\n",
+ 			__func__, reg);
+ 
++	dev_dbg(&client->dev, "write addr 0x%04x, val 0x%04x\n", reg, val);
+ 	return ret;
+ }
+ 
+@@ -364,8 +367,8 @@ static int __sensor_init(struct v4l2_sub
+ 		cnt++;
+ 	}
+ 
+-	ret = irs1125_write_array(sd, irs1125_26MHz,
+-				  ARRAY_SIZE(irs1125_26MHz));
++	ret = irs1125_write_array(sd, irs1125_26mhz,
++				  ARRAY_SIZE(irs1125_26mhz));
+ 	if (ret < 0) {
+ 		dev_err(&client->dev, "write sensor default regs error\n");
+ 		return ret;
+@@ -415,8 +418,8 @@ static int __sensor_init(struct v4l2_sub
+ 	}
+ 	release_firmware(fw);
+ 
+-	ret = irs1125_write_array(sd, irs1125_seq_cfg,
+-				  ARRAY_SIZE(irs1125_seq_cfg));
++	ret = irs1125_write_array(sd, irs1125_seq_cfg_init,
++				  ARRAY_SIZE(irs1125_seq_cfg_init));
+ 	if (ret < 0) {
+ 		dev_err(&client->dev, "write default sequence failed\n");
+ 		return ret;
+@@ -1037,6 +1040,7 @@ static int irs1125_probe(struct i2c_clie
+ 	}
+ 
+ 	gpio_num = desc_to_gpio(sensor->reset);
++	dev_dbg(&client->dev, "reset on GPIO num %d\n", gpio_num);
+ 
+ 	mutex_init(&sensor->lock);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0260-media-irs1125-Atomic-access-to-imager-reconfiguratio.patch b/target/linux/bcm27xx/patches-5.10/950-0260-media-irs1125-Atomic-access-to-imager-reconfiguratio.patch
new file mode 100644
index 0000000000..5c33c023f2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0260-media-irs1125-Atomic-access-to-imager-reconfiguratio.patch
@@ -0,0 +1,381 @@
+From aa2af4f9994e6209e4b01d259ae67afb5c87e459 Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Tue, 16 Jun 2020 13:31:36 +0200
+Subject: [PATCH] media: irs1125: Atomic access to imager
+ reconfiguration
+
+Instead of changing the exposure and framerate settings for all sequences,
+they can be changed for every sequence individually now. Therefore the
+IRS1125_CID_SAFE_RECONFIG ctrl has been removed and replaced by
+IRS1125_CID_SAFE_RECONFIG_S<seq_num>_EXPO and *_FRAME ctrls.
+
+The consistency check in the sequence ctrl IRS1125_CID_SEQ_CONFIG
+is removed.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ drivers/media/i2c/irs1125.c | 224 ++++++++++++++++++++++++------------
+ drivers/media/i2c/irs1125.h |  68 ++++++++---
+ 2 files changed, 204 insertions(+), 88 deletions(-)
+
+--- a/drivers/media/i2c/irs1125.c
++++ b/drivers/media/i2c/irs1125.c
+@@ -89,6 +89,52 @@ static inline struct irs1125 *to_state(s
+ 	return container_of(sd, struct irs1125, sd);
+ }
+ 
++static const char *expo_ctrl_names[IRS1125_NUM_SEQ_ENTRIES] = {
++	"safe reconfiguration of exposure of sequence 0",
++	"safe reconfiguration of exposure of sequence 1",
++	"safe reconfiguration of exposure of sequence 2",
++	"safe reconfiguration of exposure of sequence 3",
++	"safe reconfiguration of exposure of sequence 4",
++	"safe reconfiguration of exposure of sequence 5",
++	"safe reconfiguration of exposure of sequence 6",
++	"safe reconfiguration of exposure of sequence 7",
++	"safe reconfiguration of exposure of sequence 8",
++	"safe reconfiguration of exposure of sequence 9",
++	"safe reconfiguration of exposure of sequence 10",
++	"safe reconfiguration of exposure of sequence 11",
++	"safe reconfiguration of exposure of sequence 12",
++	"safe reconfiguration of exposure of sequence 13",
++	"safe reconfiguration of exposure of sequence 14",
++	"safe reconfiguration of exposure of sequence 15",
++	"safe reconfiguration of exposure of sequence 16",
++	"safe reconfiguration of exposure of sequence 17",
++	"safe reconfiguration of exposure of sequence 18",
++	"safe reconfiguration of exposure of sequence 19",
++};
++
++static const char *frame_ctrl_names[IRS1125_NUM_SEQ_ENTRIES] = {
++	"safe reconfiguration of framerate of sequence 0",
++	"safe reconfiguration of framerate of sequence 1",
++	"safe reconfiguration of framerate of sequence 2",
++	"safe reconfiguration of framerate of sequence 3",
++	"safe reconfiguration of framerate of sequence 4",
++	"safe reconfiguration of framerate of sequence 5",
++	"safe reconfiguration of framerate of sequence 6",
++	"safe reconfiguration of framerate of sequence 7",
++	"safe reconfiguration of framerate of sequence 8",
++	"safe reconfiguration of framerate of sequence 9",
++	"safe reconfiguration of framerate of sequence 10",
++	"safe reconfiguration of framerate of sequence 11",
++	"safe reconfiguration of framerate of sequence 12",
++	"safe reconfiguration of framerate of sequence 13",
++	"safe reconfiguration of framerate of sequence 14",
++	"safe reconfiguration of framerate of sequence 15",
++	"safe reconfiguration of framerate of sequence 16",
++	"safe reconfiguration of framerate of sequence 17",
++	"safe reconfiguration of framerate of sequence 18",
++	"safe reconfiguration of framerate of sequence 19",
++};
++
+ static struct regval_list irs1125_26mhz[] = {
+ 	{0xB017, 0x0413},
+ 	{0xB086, 0x3535},
+@@ -561,36 +607,57 @@ static int irs1125_s_ctrl(struct v4l2_ct
+ 	struct irs1125 *dev = container_of(ctrl->handler,
+ 					struct irs1125, ctrl_handler);
+ 	struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
+-	int err, i;
+ 	struct irs1125_mod_pll *mod_cur, *mod_new;
+-	struct irs1125_seq_cfg *cfg_cur, *cfg_new;
+ 	u16 addr, val;
+-
+-	err = 0;
++	int err = 0, i;
+ 
+ 	switch (ctrl->id) {
+-	case IRS1125_CID_SAFE_RECONFIG:
+-	{
+-		struct irs1125_illu *illu_cur, *illu_new;
+-
+-		illu_new = (struct irs1125_illu *)ctrl->p_new.p;
+-		illu_cur = (struct irs1125_illu *)ctrl->p_cur.p;
+-		for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
+-			if (illu_cur[i].exposure != illu_new[i].exposure) {
+-				addr = 0xA850 + i * 2;
+-				val = illu_new[i].exposure;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (illu_cur[i].framerate != illu_new[i].framerate) {
+-				addr = 0xA851 + i * 2;
+-				val = illu_new[i].framerate;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-		}
++	case IRS1125_CID_SAFE_RECONFIG_S0_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S0_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S1_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S1_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S2_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S2_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S3_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S3_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S4_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S4_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S5_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S5_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S6_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S6_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S7_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S7_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S8_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S8_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S9_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S9_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S10_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S10_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S11_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S11_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S12_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S12_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S13_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S13_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S14_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S14_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S15_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S15_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S16_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S16_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S17_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S17_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S18_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S18_FRAME:
++	case IRS1125_CID_SAFE_RECONFIG_S19_EXPO:
++	case IRS1125_CID_SAFE_RECONFIG_S19_FRAME: {
++		unsigned int offset = ctrl->id -
++			IRS1125_CID_SAFE_RECONFIG_S0_EXPO;
++
++		err = irs1125_write(&dev->sd,
++				    IRS1125_REG_SAFE_RECONFIG + offset,
++				    ctrl->val);
+ 		break;
+ 	}
+ 	case IRS1125_CID_MOD_PLL:
+@@ -655,40 +722,40 @@ static int irs1125_s_ctrl(struct v4l2_ct
+ 			}
+ 		}
+ 		break;
+-	case IRS1125_CID_SEQ_CONFIG:
++	case IRS1125_CID_SEQ_CONFIG: {
++		struct irs1125_seq_cfg *cfg_new;
++
+ 		cfg_new = (struct irs1125_seq_cfg *)ctrl->p_new.p;
+-		cfg_cur = (struct irs1125_seq_cfg *)ctrl->p_cur.p;
+ 		for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
+-			if (cfg_cur[i].exposure != cfg_new[i].exposure)	{
+-				addr = IRS1125_REG_DMEM_SHADOW + i * 4;
+-				val = cfg_new[i].exposure;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (cfg_cur[i].framerate != cfg_new[i].framerate) {
+-				addr = IRS1125_REG_DMEM_SHADOW + 1 + i * 4;
+-				val = cfg_new[i].framerate;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (cfg_cur[i].ps != cfg_new[i].ps) {
+-				addr = IRS1125_REG_DMEM_SHADOW + 2 + i * 4;
+-				val = cfg_new[i].ps;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (cfg_cur[i].pll != cfg_new[i].pll) {
+-				addr = IRS1125_REG_DMEM_SHADOW + 3 + i * 4;
+-				val = cfg_new[i].pll;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
++			unsigned int seq_offset = i * 4;
++			u16 addr, val;
++
++			addr = IRS1125_REG_DMEM_SHADOW + seq_offset;
++			val = cfg_new[i].exposure;
++			err = irs1125_write(&dev->sd, addr, val);
++			if (err < 0)
++				break;
++
++			addr = IRS1125_REG_DMEM_SHADOW + 1 + seq_offset;
++			val = cfg_new[i].framerate;
++			err = irs1125_write(&dev->sd, addr, val);
++			if (err < 0)
++				break;
++
++			addr = IRS1125_REG_DMEM_SHADOW + 2 + seq_offset;
++			val = cfg_new[i].ps;
++			err = irs1125_write(&dev->sd, addr, val);
++			if (err < 0)
++				break;
++
++			addr = IRS1125_REG_DMEM_SHADOW + 3 + seq_offset;
++			val = cfg_new[i].pll;
++			err = irs1125_write(&dev->sd, addr, val);
++			if (err < 0)
++				break;
+ 		}
+ 		break;
++	}
+ 	case IRS1125_CID_NUM_SEQS:
+ 		err = irs1125_write(&dev->sd, 0xA88D, ctrl->val - 1);
+ 		if (err >= 0)
+@@ -760,19 +827,6 @@ static const struct v4l2_ctrl_config irs
+ 			IRS1125_NUM_MOD_PLLS}
+ 	}, {
+ 		.ops = &irs1125_ctrl_ops,
+-		.id = IRS1125_CID_SAFE_RECONFIG,
+-		.name = "Change exposure and pause of single seq",
+-		.type = V4L2_CTRL_TYPE_U16,
+-		.flags = V4L2_CTRL_FLAG_HAS_PAYLOAD,
+-		.min = 0,
+-		.max = U16_MAX,
+-		.step = 1,
+-		.def = 0,
+-		.elem_size = sizeof(u16),
+-		.dims = {sizeof(struct irs1125_illu) / sizeof(u16),
+-			IRS1125_NUM_SEQ_ENTRIES}
+-	}, {
+-		.ops = &irs1125_ctrl_ops,
+ 		.id = IRS1125_CID_SEQ_CONFIG,
+ 		.name = "Change sequence settings",
+ 		.type = V4L2_CTRL_TYPE_U16,
+@@ -900,9 +954,16 @@ static int irs1125_ctrls_init(struct irs
+ {
+ 	struct v4l2_ctrl *ctrl;
+ 	int err, i;
+-	struct v4l2_ctrl_handler *hdl;
++	struct v4l2_ctrl_handler *hdl = &sensor->ctrl_handler;
++	struct v4l2_ctrl_config ctrl_cfg = {
++		.ops = &irs1125_ctrl_ops,
++		.type = V4L2_CTRL_TYPE_INTEGER,
++		.min = 0,
++		.max = U16_MAX,
++		.step = 1,
++		.def = 0x1000
++	};
+ 
+-	hdl = &sensor->ctrl_handler;
+ 	v4l2_ctrl_handler_init(hdl, ARRAY_SIZE(irs1125_custom_ctrls));
+ 
+ 	for (i = 0; i < ARRAY_SIZE(irs1125_custom_ctrls); i++)	{
+@@ -923,6 +984,27 @@ static int irs1125_ctrls_init(struct irs
+ 		goto error_ctrls;
+ 	}
+ 
++	for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
++		ctrl_cfg.name = expo_ctrl_names[i];
++		ctrl_cfg.id = IRS1125_CID_SAFE_RECONFIG_S0_EXPO + i * 2;
++		ctrl = v4l2_ctrl_new_custom(hdl, &ctrl_cfg,
++					    NULL);
++		if (!ctrl)
++			dev_err(dev, "Failed to init exposure control %s\n",
++				ctrl_cfg.name);
++	}
++
++	ctrl_cfg.def = 0;
++	for (i = 0; i < IRS1125_NUM_SEQ_ENTRIES; i++) {
++		ctrl_cfg.name = frame_ctrl_names[i];
++		ctrl_cfg.id = IRS1125_CID_SAFE_RECONFIG_S0_FRAME + i * 2;
++		ctrl = v4l2_ctrl_new_custom(hdl, &ctrl_cfg,
++					    NULL);
++		if (!ctrl)
++			dev_err(dev, "Failed to init framerate control %s\n",
++				ctrl_cfg.name);
++	}
++
+ 	sensor->sd.ctrl_handler = hdl;
+ 	return 0;
+ 
+--- a/drivers/media/i2c/irs1125.h
++++ b/drivers/media/i2c/irs1125.h
+@@ -21,18 +21,57 @@
+ #define IRS1125_NUM_SEQ_ENTRIES 20
+ #define IRS1125_NUM_MOD_PLLS 4
+ 
+-#define IRS1125_CID_CUSTOM_BASE        (V4L2_CID_USER_BASE | 0xf000)
+-#define IRS1125_CID_SAFE_RECONFIG      (IRS1125_CID_CUSTOM_BASE + 0)
+-#define IRS1125_CID_CONTINUOUS_TRIG    (IRS1125_CID_CUSTOM_BASE + 1)
+-#define IRS1125_CID_TRIGGER            (IRS1125_CID_CUSTOM_BASE + 2)
+-#define IRS1125_CID_RECONFIG           (IRS1125_CID_CUSTOM_BASE + 3)
+-#define IRS1125_CID_ILLU_ON            (IRS1125_CID_CUSTOM_BASE + 4)
+-#define IRS1125_CID_NUM_SEQS           (IRS1125_CID_CUSTOM_BASE + 5)
+-#define IRS1125_CID_MOD_PLL            (IRS1125_CID_CUSTOM_BASE + 6)
+-#define IRS1125_CID_SEQ_CONFIG         (IRS1125_CID_CUSTOM_BASE + 7)
+-#define IRS1125_CID_IDENT0             (IRS1125_CID_CUSTOM_BASE + 8)
+-#define IRS1125_CID_IDENT1             (IRS1125_CID_CUSTOM_BASE + 9)
+-#define IRS1125_CID_IDENT2             (IRS1125_CID_CUSTOM_BASE + 10)
++#define IRS1125_CID_CUSTOM_BASE			(V4L2_CID_USER_BASE | 0xf000)
++#define IRS1125_CID_CONTINUOUS_TRIG		(IRS1125_CID_CUSTOM_BASE + 1)
++#define IRS1125_CID_TRIGGER			(IRS1125_CID_CUSTOM_BASE + 2)
++#define IRS1125_CID_RECONFIG			(IRS1125_CID_CUSTOM_BASE + 3)
++#define IRS1125_CID_ILLU_ON			(IRS1125_CID_CUSTOM_BASE + 4)
++#define IRS1125_CID_NUM_SEQS			(IRS1125_CID_CUSTOM_BASE + 5)
++#define IRS1125_CID_MOD_PLL			(IRS1125_CID_CUSTOM_BASE + 6)
++#define IRS1125_CID_SEQ_CONFIG			(IRS1125_CID_CUSTOM_BASE + 7)
++#define IRS1125_CID_IDENT0			(IRS1125_CID_CUSTOM_BASE + 8)
++#define IRS1125_CID_IDENT1			(IRS1125_CID_CUSTOM_BASE + 9)
++#define IRS1125_CID_IDENT2			(IRS1125_CID_CUSTOM_BASE + 10)
++#define IRS1125_CID_SAFE_RECONFIG_S0_EXPO	(IRS1125_CID_CUSTOM_BASE + 11)
++#define IRS1125_CID_SAFE_RECONFIG_S0_FRAME	(IRS1125_CID_CUSTOM_BASE + 12)
++#define IRS1125_CID_SAFE_RECONFIG_S1_EXPO	(IRS1125_CID_CUSTOM_BASE + 13)
++#define IRS1125_CID_SAFE_RECONFIG_S1_FRAME	(IRS1125_CID_CUSTOM_BASE + 14)
++#define IRS1125_CID_SAFE_RECONFIG_S2_EXPO	(IRS1125_CID_CUSTOM_BASE + 15)
++#define IRS1125_CID_SAFE_RECONFIG_S2_FRAME	(IRS1125_CID_CUSTOM_BASE + 16)
++#define IRS1125_CID_SAFE_RECONFIG_S3_EXPO	(IRS1125_CID_CUSTOM_BASE + 17)
++#define IRS1125_CID_SAFE_RECONFIG_S3_FRAME	(IRS1125_CID_CUSTOM_BASE + 18)
++#define IRS1125_CID_SAFE_RECONFIG_S4_EXPO	(IRS1125_CID_CUSTOM_BASE + 19)
++#define IRS1125_CID_SAFE_RECONFIG_S4_FRAME	(IRS1125_CID_CUSTOM_BASE + 20)
++#define IRS1125_CID_SAFE_RECONFIG_S5_EXPO	(IRS1125_CID_CUSTOM_BASE + 21)
++#define IRS1125_CID_SAFE_RECONFIG_S5_FRAME	(IRS1125_CID_CUSTOM_BASE + 22)
++#define IRS1125_CID_SAFE_RECONFIG_S6_EXPO	(IRS1125_CID_CUSTOM_BASE + 23)
++#define IRS1125_CID_SAFE_RECONFIG_S6_FRAME	(IRS1125_CID_CUSTOM_BASE + 24)
++#define IRS1125_CID_SAFE_RECONFIG_S7_EXPO	(IRS1125_CID_CUSTOM_BASE + 25)
++#define IRS1125_CID_SAFE_RECONFIG_S7_FRAME	(IRS1125_CID_CUSTOM_BASE + 26)
++#define IRS1125_CID_SAFE_RECONFIG_S8_EXPO	(IRS1125_CID_CUSTOM_BASE + 27)
++#define IRS1125_CID_SAFE_RECONFIG_S8_FRAME	(IRS1125_CID_CUSTOM_BASE + 28)
++#define IRS1125_CID_SAFE_RECONFIG_S9_EXPO	(IRS1125_CID_CUSTOM_BASE + 29)
++#define IRS1125_CID_SAFE_RECONFIG_S9_FRAME	(IRS1125_CID_CUSTOM_BASE + 30)
++#define IRS1125_CID_SAFE_RECONFIG_S10_EXPO	(IRS1125_CID_CUSTOM_BASE + 31)
++#define IRS1125_CID_SAFE_RECONFIG_S10_FRAME	(IRS1125_CID_CUSTOM_BASE + 32)
++#define IRS1125_CID_SAFE_RECONFIG_S11_EXPO	(IRS1125_CID_CUSTOM_BASE + 33)
++#define IRS1125_CID_SAFE_RECONFIG_S11_FRAME	(IRS1125_CID_CUSTOM_BASE + 34)
++#define IRS1125_CID_SAFE_RECONFIG_S12_EXPO	(IRS1125_CID_CUSTOM_BASE + 35)
++#define IRS1125_CID_SAFE_RECONFIG_S12_FRAME	(IRS1125_CID_CUSTOM_BASE + 36)
++#define IRS1125_CID_SAFE_RECONFIG_S13_EXPO	(IRS1125_CID_CUSTOM_BASE + 37)
++#define IRS1125_CID_SAFE_RECONFIG_S13_FRAME	(IRS1125_CID_CUSTOM_BASE + 38)
++#define IRS1125_CID_SAFE_RECONFIG_S14_EXPO	(IRS1125_CID_CUSTOM_BASE + 39)
++#define IRS1125_CID_SAFE_RECONFIG_S14_FRAME	(IRS1125_CID_CUSTOM_BASE + 40)
++#define IRS1125_CID_SAFE_RECONFIG_S15_EXPO	(IRS1125_CID_CUSTOM_BASE + 41)
++#define IRS1125_CID_SAFE_RECONFIG_S15_FRAME	(IRS1125_CID_CUSTOM_BASE + 42)
++#define IRS1125_CID_SAFE_RECONFIG_S16_EXPO	(IRS1125_CID_CUSTOM_BASE + 43)
++#define IRS1125_CID_SAFE_RECONFIG_S16_FRAME	(IRS1125_CID_CUSTOM_BASE + 44)
++#define IRS1125_CID_SAFE_RECONFIG_S17_EXPO	(IRS1125_CID_CUSTOM_BASE + 45)
++#define IRS1125_CID_SAFE_RECONFIG_S17_FRAME	(IRS1125_CID_CUSTOM_BASE + 46)
++#define IRS1125_CID_SAFE_RECONFIG_S18_EXPO	(IRS1125_CID_CUSTOM_BASE + 47)
++#define IRS1125_CID_SAFE_RECONFIG_S18_FRAME	(IRS1125_CID_CUSTOM_BASE + 48)
++#define IRS1125_CID_SAFE_RECONFIG_S19_EXPO	(IRS1125_CID_CUSTOM_BASE + 49)
++#define IRS1125_CID_SAFE_RECONFIG_S19_FRAME	(IRS1125_CID_CUSTOM_BASE + 50)
+ 
+ struct irs1125_seq_cfg {
+ 	__u16 exposure;
+@@ -41,11 +80,6 @@ struct irs1125_seq_cfg {
+ 	__u16 pll;
+ };
+ 
+-struct irs1125_illu {
+-	__u16 exposure;
+-	__u16 framerate;
+-};
+-
+ struct irs1125_mod_pll {
+ 	__u16 pllcfg1;
+ 	__u16 pllcfg2;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0261-media-irs1125-Keep-HW-in-sync-after-imager-reset.patch b/target/linux/bcm27xx/patches-5.10/950-0261-media-irs1125-Keep-HW-in-sync-after-imager-reset.patch
new file mode 100644
index 0000000000..1bacd924e2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0261-media-irs1125-Keep-HW-in-sync-after-imager-reset.patch
@@ -0,0 +1,181 @@
+From 60794484c063805631e50b5a4fbc81538d51944e Mon Sep 17 00:00:00 2001
+From: Markus Proeller <markus.proeller@pieye.org>
+Date: Tue, 16 Jun 2020 13:33:56 +0200
+Subject: [PATCH] media: irs1125: Keep HW in sync after imager reset
+
+When closing the video device, the irs1125 is put in power down state.
+To keep V4L2 ctrls and the HW in sync, v4l2_ctrl_handler_setup is
+called after power up.
+
+The compound ctrl IRS1125_CID_MOD_PLL however has a default value
+of all zeros, which puts the imager into a non responding state.
+Thus, this ctrl is not written by the driver into HW after power up.
+The userspace has to take care to write senseful data.
+
+Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
+---
+ drivers/media/i2c/irs1125.c | 121 +++++++++++++++++-------------------
+ 1 file changed, 58 insertions(+), 63 deletions(-)
+
+--- a/drivers/media/i2c/irs1125.c
++++ b/drivers/media/i2c/irs1125.c
+@@ -82,6 +82,7 @@ struct irs1125 {
+ 	struct v4l2_ctrl *ctrl_numseq;
+ 
+ 	int power_count;
++	bool mod_pll_init;
+ };
+ 
+ static inline struct irs1125 *to_state(struct v4l2_subdev *sd)
+@@ -276,8 +277,7 @@ static struct regval_list irs1125_seq_cf
+ 	{0xC039, 0x0000},
+ 	{0xC401, 0x0002},
+ 
+-	{0xFFFF, 1},
+-	{0xA87C, 0x0001}
++	{0xFFFF, 1}
+ };
+ 
+ static int irs1125_write(struct v4l2_subdev *sd, u16 reg, u16 val)
+@@ -471,7 +471,11 @@ static int __sensor_init(struct v4l2_sub
+ 		return ret;
+ 	}
+ 
+-	return 0;
++	irs1125->mod_pll_init = true;
++	v4l2_ctrl_handler_setup(&irs1125->ctrl_handler);
++	irs1125->mod_pll_init = false;
++
++	return irs1125_write(sd, 0xA87C, 0x0001);
+ }
+ 
+ static int irs1125_sensor_power(struct v4l2_subdev *sd, int on)
+@@ -607,8 +611,6 @@ static int irs1125_s_ctrl(struct v4l2_ct
+ 	struct irs1125 *dev = container_of(ctrl->handler,
+ 					struct irs1125, ctrl_handler);
+ 	struct i2c_client *client = v4l2_get_subdevdata(&dev->sd);
+-	struct irs1125_mod_pll *mod_cur, *mod_new;
+-	u16 addr, val;
+ 	int err = 0, i;
+ 
+ 	switch (ctrl->id) {
+@@ -660,68 +662,61 @@ static int irs1125_s_ctrl(struct v4l2_ct
+ 				    ctrl->val);
+ 		break;
+ 	}
+-	case IRS1125_CID_MOD_PLL:
++	case IRS1125_CID_MOD_PLL: {
++		struct irs1125_mod_pll *mod_new;
++
++		if (dev->mod_pll_init)
++			break;
++
+ 		mod_new = (struct irs1125_mod_pll *)ctrl->p_new.p;
+-		mod_cur = (struct irs1125_mod_pll *)ctrl->p_cur.p;
+ 		for (i = 0; i < IRS1125_NUM_MOD_PLLS; i++) {
+-			if (mod_cur[i].pllcfg1 != mod_new[i].pllcfg1) {
+-				addr = 0xC3A0 + i * 3;
+-				val = mod_new[i].pllcfg1;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg2 != mod_new[i].pllcfg2) {
+-				addr = 0xC3A1 + i * 3;
+-				val = mod_new[i].pllcfg2;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg3 != mod_new[i].pllcfg3) {
+-				addr = 0xC3A2 + i * 3;
+-				val = mod_new[i].pllcfg3;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg4 != mod_new[i].pllcfg4) {
+-				addr = 0xC24C + i * 5;
+-				val = mod_new[i].pllcfg4;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg5 != mod_new[i].pllcfg5) {
+-				addr = 0xC24D + i * 5;
+-				val = mod_new[i].pllcfg5;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg6 != mod_new[i].pllcfg6) {
+-				addr = 0xC24E + i * 5;
+-				val = mod_new[i].pllcfg6;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg7 != mod_new[i].pllcfg7) {
+-				addr = 0xC24F + i * 5;
+-				val = mod_new[i].pllcfg7;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
+-			if (mod_cur[i].pllcfg8 != mod_new[i].pllcfg8) {
+-				addr = 0xC250 + i * 5;
+-				val = mod_new[i].pllcfg8;
+-				err = irs1125_write(&dev->sd, addr, val);
+-				if (err < 0)
+-					break;
+-			}
++			unsigned int pll_offset, ssc_offset;
++
++			pll_offset = i * 3;
++			ssc_offset = i * 5;
++
++			err = irs1125_write(&dev->sd, 0xC3A0 + pll_offset,
++					    mod_new[i].pllcfg1);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC3A1 + pll_offset,
++					    mod_new[i].pllcfg2);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC3A2 + pll_offset,
++					    mod_new[i].pllcfg3);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC24C + ssc_offset,
++					    mod_new[i].pllcfg4);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC24D + ssc_offset,
++					    mod_new[i].pllcfg5);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC24E + ssc_offset,
++					    mod_new[i].pllcfg6);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC24F + ssc_offset,
++					    mod_new[i].pllcfg7);
++			if (err < 0)
++				break;
++
++			err = irs1125_write(&dev->sd, 0xC250 + ssc_offset,
++					    mod_new[i].pllcfg8);
++			if (err < 0)
++				break;
+ 		}
+ 		break;
++	}
+ 	case IRS1125_CID_SEQ_CONFIG: {
+ 		struct irs1125_seq_cfg *cfg_new;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0262-staging-bcm2835-audio-Add-missing-MODULE_ALIAS.patch b/target/linux/bcm27xx/patches-5.10/950-0262-staging-bcm2835-audio-Add-missing-MODULE_ALIAS.patch
new file mode 100644
index 0000000000..8f3efed07a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0262-staging-bcm2835-audio-Add-missing-MODULE_ALIAS.patch
@@ -0,0 +1,30 @@
+From 0465c9ffbf41667c8553d18ace95d2be2f2f4b00 Mon Sep 17 00:00:00 2001
+From: Maxim Mikityanskiy <maxtram95@gmail.com>
+Date: Sat, 20 Jun 2020 15:40:00 +0300
+Subject: [PATCH] staging: bcm2835-audio: Add missing MODULE_ALIAS
+
+Commit 8353fe6f1e0f ("Revert "staging: bcm2835-audio: Drop DT
+dependency"") reverts the upstream change and makes bcm2835-audio use
+device tree again, however, it also removes the MODULE_ALIAS for the
+platform device. This MODULE_ALIAS is needed, because VCHIQ registers
+bcm2835-audio as a child platform device since commit 25c7597af20d
+("staging: vchiq_arm: Register a platform device for audio"), and this
+mechanism is adopted also in the downstream kernel.
+
+This commit puts back that MODULE_ALIAS to make bcm2835-audio
+autoprobing work again. The rest of VCHIQ children have their
+MODULE_ALIASes in place.
+
+Fixes: 8353fe6f1e0f ("Revert "staging: bcm2835-audio: Drop DT dependency"")
+Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -438,3 +438,4 @@ module_platform_driver(bcm2835_alsa_driv
+ MODULE_AUTHOR("Dom Cobley");
+ MODULE_DESCRIPTION("Alsa driver for BCM2835 chip");
+ MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:bcm2835_audio");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0263-drivers-media-Remove-the-downstream-version-of-bcm28.patch b/target/linux/bcm27xx/patches-5.10/950-0263-drivers-media-Remove-the-downstream-version-of-bcm28.patch
new file mode 100644
index 0000000000..381b2a5bd2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0263-drivers-media-Remove-the-downstream-version-of-bcm28.patch
@@ -0,0 +1,3175 @@
+From e1690f8e0f8ac07021dd5e6b53bf6df2c9cf0ae2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 23 Jun 2020 10:05:57 +0100
+Subject: [PATCH] drivers: media: Remove the downstream version of
+ bcm2835-unicam
+
+About to be replaced by the upstream version.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/Kconfig        |   14 -
+ drivers/media/platform/bcm2835/Makefile       |    3 -
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 2873 -----------------
+ .../media/platform/bcm2835/vc4-regs-unicam.h  |  253 --
+ 4 files changed, 3143 deletions(-)
+ delete mode 100644 drivers/media/platform/bcm2835/Kconfig
+ delete mode 100644 drivers/media/platform/bcm2835/Makefile
+ delete mode 100644 drivers/media/platform/bcm2835/bcm2835-unicam.c
+ delete mode 100644 drivers/media/platform/bcm2835/vc4-regs-unicam.h
+
+--- a/drivers/media/platform/bcm2835/Kconfig
++++ /dev/null
+@@ -1,14 +0,0 @@
+-# Broadcom VideoCore4 V4L2 camera support
+-
+-config VIDEO_BCM2835_UNICAM
+-	tristate "Broadcom BCM2835 Unicam video capture driver"
+-	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER
+-	depends on ARCH_BCM2835 || COMPILE_TEST
+-	select VIDEOBUF2_DMA_CONTIG
+-	select V4L2_FWNODE
+-	help
+-	  Say Y here to enable V4L2 subdevice for CSI2 receiver.
+-	  This is a V4L2 subdevice that interfaces directly to the VC4 peripheral.
+-
+-	   To compile this driver as a module, choose M here. The module
+-	   will be called bcm2835-unicam.
+--- a/drivers/media/platform/bcm2835/Makefile
++++ /dev/null
+@@ -1,3 +0,0 @@
+-# Makefile for BCM2835 Unicam driver
+-
+-obj-$(CONFIG_VIDEO_BCM2835_UNICAM) += bcm2835-unicam.o
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ /dev/null
+@@ -1,2873 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0-only
+-/*
+- * BCM2835 Unicam Capture Driver
+- *
+- * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd.
+- *
+- * Dave Stevenson <dave.stevenson@raspberrypi.com>
+- *
+- * Based on TI am437x driver by
+- *   Benoit Parrot <bparrot@ti.com>
+- *   Lad, Prabhakar <prabhakar.csengg@gmail.com>
+- *
+- * and TI CAL camera interface driver by
+- *    Benoit Parrot <bparrot@ti.com>
+- *
+- *
+- * There are two camera drivers in the kernel for BCM283x - this one
+- * and bcm2835-camera (currently in staging).
+- *
+- * This driver directly controls the Unicam peripheral - there is no
+- * involvement with the VideoCore firmware. Unicam receives CSI-2 or
+- * CCP2 data and writes it into SDRAM.
+- * The only potential processing options are to repack Bayer data into an
+- * alternate format, and applying windowing.
+- * The repacking does not shift the data, so can repack V4L2_PIX_FMT_Sxxxx10P
+- * to V4L2_PIX_FMT_Sxxxx10, or V4L2_PIX_FMT_Sxxxx12P to V4L2_PIX_FMT_Sxxxx12,
+- * but not generically up to V4L2_PIX_FMT_Sxxxx16. The driver will add both
+- * formats where the relevant formats are defined, and will automatically
+- * configure the repacking as required.
+- * Support for windowing may be added later.
+- *
+- * It should be possible to connect this driver to any sensor with a
+- * suitable output interface and V4L2 subdevice driver.
+- *
+- * bcm2835-camera uses the VideoCore firmware to control the sensor,
+- * Unicam, ISP, and all tuner control loops. Fully processed frames are
+- * delivered to the driver by the firmware. It only has sensor drivers
+- * for Omnivision OV5647, and Sony IMX219 sensors.
+- *
+- * The two drivers are mutually exclusive for the same Unicam instance.
+- * The VideoCore firmware checks the device tree configuration during boot.
+- * If it finds device tree nodes called csi0 or csi1 it will block the
+- * firmware from accessing the peripheral, and bcm2835-camera will
+- * not be able to stream data.
+- */
+-
+-#include <linux/clk.h>
+-#include <linux/delay.h>
+-#include <linux/device.h>
+-#include <linux/dma-mapping.h>
+-#include <linux/err.h>
+-#include <linux/init.h>
+-#include <linux/interrupt.h>
+-#include <linux/io.h>
+-#include <linux/module.h>
+-#include <linux/of_device.h>
+-#include <linux/of_graph.h>
+-#include <linux/pinctrl/consumer.h>
+-#include <linux/platform_device.h>
+-#include <linux/pm_runtime.h>
+-#include <linux/slab.h>
+-#include <linux/uaccess.h>
+-#include <linux/videodev2.h>
+-
+-#include <media/v4l2-common.h>
+-#include <media/v4l2-ctrls.h>
+-#include <media/v4l2-dev.h>
+-#include <media/v4l2-device.h>
+-#include <media/v4l2-dv-timings.h>
+-#include <media/v4l2-event.h>
+-#include <media/v4l2-ioctl.h>
+-#include <media/v4l2-fwnode.h>
+-#include <media/videobuf2-dma-contig.h>
+-
+-#include "vc4-regs-unicam.h"
+-
+-#define UNICAM_MODULE_NAME	"unicam"
+-#define UNICAM_VERSION		"0.1.0"
+-
+-static int debug;
+-module_param(debug, int, 0644);
+-MODULE_PARM_DESC(debug, "Debug level 0-3");
+-
+-#define unicam_dbg(level, dev, fmt, arg...)	\
+-		v4l2_dbg(level, debug, &(dev)->v4l2_dev, fmt, ##arg)
+-#define unicam_info(dev, fmt, arg...)	\
+-		v4l2_info(&(dev)->v4l2_dev, fmt, ##arg)
+-#define unicam_err(dev, fmt, arg...)	\
+-		v4l2_err(&(dev)->v4l2_dev, fmt, ##arg)
+-
+-/* To protect against a dodgy sensor driver never returning an error from
+- * enum_mbus_code, set a maximum index value to be used.
+- */
+-#define MAX_ENUM_MBUS_CODE	128
+-
+-/*
+- * Stride is a 16 bit register, but also has to be a multiple of 32.
+- */
+-#define BPL_ALIGNMENT		32
+-#define MAX_BYTESPERLINE	((1 << 16) - BPL_ALIGNMENT)
+-/*
+- * Max width is therefore determined by the max stride divided by
+- * the number of bits per pixel. Take 32bpp as a
+- * worst case.
+- * No imposed limit on the height, so adopt a square image for want
+- * of anything better.
+- */
+-#define MAX_WIDTH	(MAX_BYTESPERLINE / 4)
+-#define MAX_HEIGHT	MAX_WIDTH
+-/* Define a nominal minimum image size */
+-#define MIN_WIDTH	16
+-#define MIN_HEIGHT	16
+-/* Default size of the embedded buffer */
+-#define UNICAM_EMBEDDED_SIZE	8192
+-
+-/*
+- * Size of the dummy buffer. Can be any size really, but the DMA
+- * allocation works in units of page sizes.
+- */
+-#define DUMMY_BUF_SIZE	(PAGE_SIZE)
+-
+-enum pad_types {
+-	IMAGE_PAD,
+-	METADATA_PAD,
+-	MAX_NODES
+-};
+-
+-/*
+- * struct unicam_fmt - Unicam media bus format information
+- * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a.
+- * @repacked_fourcc: V4L2 pixel format FCC identifier if the data is expanded
+- * out to 16bpp. 0 if n/a.
+- * @code: V4L2 media bus format code.
+- * @depth: Bits per pixel as delivered from the source.
+- * @csi_dt: CSI data type.
+- * @check_variants: Flag to denote that there are multiple mediabus formats
+- *		still in the list that could match this V4L2 format.
+- */
+-struct unicam_fmt {
+-	u32	fourcc;
+-	u32	repacked_fourcc;
+-	u32	code;
+-	u8	depth;
+-	u8	csi_dt;
+-	u8	check_variants;
+-};
+-
+-static const struct unicam_fmt formats[] = {
+-	/* YUV Formats */
+-	{
+-		.fourcc		= V4L2_PIX_FMT_YUYV,
+-		.code		= MEDIA_BUS_FMT_YUYV8_2X8,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-		.check_variants = 1,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_UYVY,
+-		.code		= MEDIA_BUS_FMT_UYVY8_2X8,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-		.check_variants = 1,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_YVYU,
+-		.code		= MEDIA_BUS_FMT_YVYU8_2X8,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-		.check_variants = 1,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_VYUY,
+-		.code		= MEDIA_BUS_FMT_VYUY8_2X8,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-		.check_variants = 1,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_YUYV,
+-		.code		= MEDIA_BUS_FMT_YUYV8_1X16,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_UYVY,
+-		.code		= MEDIA_BUS_FMT_UYVY8_1X16,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_YVYU,
+-		.code		= MEDIA_BUS_FMT_YVYU8_1X16,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_VYUY,
+-		.code		= MEDIA_BUS_FMT_VYUY8_1X16,
+-		.depth		= 16,
+-		.csi_dt		= 0x1e,
+-	}, {
+-	/* RGB Formats */
+-		.fourcc		= V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
+-		.code		= MEDIA_BUS_FMT_RGB565_2X8_LE,
+-		.depth		= 16,
+-		.csi_dt		= 0x22,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
+-		.code		= MEDIA_BUS_FMT_RGB565_2X8_BE,
+-		.depth		= 16,
+-		.csi_dt		= 0x22
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */
+-		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
+-		.depth		= 16,
+-		.csi_dt		= 0x21,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */
+-		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE,
+-		.depth		= 16,
+-		.csi_dt		= 0x21,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_RGB24, /* rgb */
+-		.code		= MEDIA_BUS_FMT_RGB888_1X24,
+-		.depth		= 24,
+-		.csi_dt		= 0x24,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_BGR24, /* bgr */
+-		.code		= MEDIA_BUS_FMT_BGR888_1X24,
+-		.depth		= 24,
+-		.csi_dt		= 0x24,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_RGB32, /* argb */
+-		.code		= MEDIA_BUS_FMT_ARGB8888_1X32,
+-		.depth		= 32,
+-		.csi_dt		= 0x0,
+-	}, {
+-	/* Bayer Formats */
+-		.fourcc		= V4L2_PIX_FMT_SBGGR8,
+-		.code		= MEDIA_BUS_FMT_SBGGR8_1X8,
+-		.depth		= 8,
+-		.csi_dt		= 0x2a,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGBRG8,
+-		.code		= MEDIA_BUS_FMT_SGBRG8_1X8,
+-		.depth		= 8,
+-		.csi_dt		= 0x2a,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGRBG8,
+-		.code		= MEDIA_BUS_FMT_SGRBG8_1X8,
+-		.depth		= 8,
+-		.csi_dt		= 0x2a,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SRGGB8,
+-		.code		= MEDIA_BUS_FMT_SRGGB8_1X8,
+-		.depth		= 8,
+-		.csi_dt		= 0x2a,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SBGGR10P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SBGGR10,
+-		.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
+-		.depth		= 10,
+-		.csi_dt		= 0x2b,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGBRG10P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SGBRG10,
+-		.code		= MEDIA_BUS_FMT_SGBRG10_1X10,
+-		.depth		= 10,
+-		.csi_dt		= 0x2b,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGRBG10P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SGRBG10,
+-		.code		= MEDIA_BUS_FMT_SGRBG10_1X10,
+-		.depth		= 10,
+-		.csi_dt		= 0x2b,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SRGGB10P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SRGGB10,
+-		.code		= MEDIA_BUS_FMT_SRGGB10_1X10,
+-		.depth		= 10,
+-		.csi_dt		= 0x2b,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SBGGR12P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SBGGR12,
+-		.code		= MEDIA_BUS_FMT_SBGGR12_1X12,
+-		.depth		= 12,
+-		.csi_dt		= 0x2c,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGBRG12P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SGBRG12,
+-		.code		= MEDIA_BUS_FMT_SGBRG12_1X12,
+-		.depth		= 12,
+-		.csi_dt		= 0x2c,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGRBG12P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SGRBG12,
+-		.code		= MEDIA_BUS_FMT_SGRBG12_1X12,
+-		.depth		= 12,
+-		.csi_dt		= 0x2c,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SRGGB12P,
+-		.repacked_fourcc = V4L2_PIX_FMT_SRGGB12,
+-		.code		= MEDIA_BUS_FMT_SRGGB12_1X12,
+-		.depth		= 12,
+-		.csi_dt		= 0x2c,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SBGGR14P,
+-		.code		= MEDIA_BUS_FMT_SBGGR14_1X14,
+-		.depth		= 14,
+-		.csi_dt		= 0x2d,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGBRG14P,
+-		.code		= MEDIA_BUS_FMT_SGBRG14_1X14,
+-		.depth		= 14,
+-		.csi_dt		= 0x2d,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SGRBG14P,
+-		.code		= MEDIA_BUS_FMT_SGRBG14_1X14,
+-		.depth		= 14,
+-		.csi_dt		= 0x2d,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_SRGGB14P,
+-		.code		= MEDIA_BUS_FMT_SRGGB14_1X14,
+-		.depth		= 14,
+-		.csi_dt		= 0x2d,
+-	}, {
+-	/*
+-	 * 16 bit Bayer formats could be supported, but there is no CSI2
+-	 * data_type defined for raw 16, and no sensors that produce it at
+-	 * present.
+-	 */
+-
+-	/* Greyscale formats */
+-		.fourcc		= V4L2_PIX_FMT_GREY,
+-		.code		= MEDIA_BUS_FMT_Y8_1X8,
+-		.depth		= 8,
+-		.csi_dt		= 0x2a,
+-	}, {
+-		.fourcc		= V4L2_PIX_FMT_Y10P,
+-		.repacked_fourcc = V4L2_PIX_FMT_Y10,
+-		.code		= MEDIA_BUS_FMT_Y10_1X10,
+-		.depth		= 10,
+-		.csi_dt		= 0x2b,
+-	}, {
+-		/* NB There is no packed V4L2 fourcc for this format. */
+-		.repacked_fourcc = V4L2_PIX_FMT_Y12,
+-		.code		= MEDIA_BUS_FMT_Y12_1X12,
+-		.depth		= 12,
+-		.csi_dt		= 0x2c,
+-	},
+-	/* Embedded data format */
+-	{
+-		.fourcc		= V4L2_META_FMT_SENSOR_DATA,
+-		.code		= MEDIA_BUS_FMT_SENSOR_DATA,
+-		.depth		= 8,
+-	}
+-};
+-
+-struct unicam_dmaqueue {
+-	struct list_head	active;
+-};
+-
+-struct unicam_buffer {
+-	struct vb2_v4l2_buffer vb;
+-	struct list_head list;
+-};
+-
+-struct unicam_cfg {
+-	/* peripheral base address */
+-	void __iomem *base;
+-	/* clock gating base address */
+-	void __iomem *clk_gate_base;
+-};
+-
+-#define MAX_POSSIBLE_PIX_FMTS (ARRAY_SIZE(formats))
+-
+-struct unicam_node {
+-	int registered;
+-	int open;
+-	int streaming;
+-	unsigned int pad_id;
+-	/* Pointer pointing to current v4l2_buffer */
+-	struct unicam_buffer *cur_frm;
+-	/* Pointer pointing to next v4l2_buffer */
+-	struct unicam_buffer *next_frm;
+-	/* video capture */
+-	const struct unicam_fmt *fmt;
+-	/* Used to store current pixel format */
+-	struct v4l2_format v_fmt;
+-	/* Used to store current mbus frame format */
+-	struct v4l2_mbus_framefmt m_fmt;
+-	/* Buffer queue used in video-buf */
+-	struct vb2_queue buffer_queue;
+-	/* Queue of filled frames */
+-	struct unicam_dmaqueue dma_queue;
+-	/* IRQ lock for DMA queue */
+-	spinlock_t dma_queue_lock;
+-	/* lock used to access this structure */
+-	struct mutex lock;
+-	/* Identifies video device for this channel */
+-	struct video_device video_dev;
+-	/* Pointer to the parent handle */
+-	struct unicam_device *dev;
+-	struct media_pad pad;
+-	struct v4l2_ctrl_handler ctrl_handler;
+-	unsigned int embedded_lines;
+-	/*
+-	 * Dummy buffer intended to be used by unicam
+-	 * if we have no other queued buffers to swap to.
+-	 */
+-	void *dummy_buf_cpu_addr;
+-	dma_addr_t dummy_buf_dma_addr;
+-};
+-
+-struct unicam_device {
+-	/* V4l2 specific parameters */
+-
+-	struct v4l2_fwnode_endpoint endpoint;
+-
+-	struct v4l2_async_subdev asd;
+-
+-	/* unicam cfg */
+-	struct unicam_cfg cfg;
+-	/* clock handle */
+-	struct clk *clock;
+-	/* V4l2 device */
+-	struct v4l2_device v4l2_dev;
+-	struct media_device mdev;
+-
+-	/* parent device */
+-	struct platform_device *pdev;
+-	/* subdevice async Notifier */
+-	struct v4l2_async_notifier notifier;
+-	unsigned int sequence;
+-
+-	/* ptr to  sub device */
+-	struct v4l2_subdev *sensor;
+-	/* Pad config for the sensor */
+-	struct v4l2_subdev_pad_config *sensor_config;
+-
+-	unsigned int virtual_channel;
+-	enum v4l2_mbus_type bus_type;
+-	/*
+-	 * Stores bus.mipi_csi2.flags for CSI2 sensors, or
+-	 * bus.mipi_csi1.strobe for CCP2.
+-	 */
+-	unsigned int bus_flags;
+-	unsigned int max_data_lanes;
+-	unsigned int active_data_lanes;
+-	bool sensor_embedded_data;
+-
+-	struct unicam_node node[MAX_NODES];
+-};
+-
+-/* Hardware access */
+-#define clk_write(dev, val) writel((val) | 0x5a000000, (dev)->clk_gate_base)
+-#define clk_read(dev) readl((dev)->clk_gate_base)
+-
+-#define reg_read(dev, offset) readl((dev)->base + (offset))
+-#define reg_write(dev, offset, val) writel(val, (dev)->base + (offset))
+-
+-#define reg_read_field(dev, offset, mask) get_field(reg_read((dev), (offset), \
+-						    mask))
+-
+-static inline int get_field(u32 value, u32 mask)
+-{
+-	return (value & mask) >> __ffs(mask);
+-}
+-
+-static inline void set_field(u32 *valp, u32 field, u32 mask)
+-{
+-	u32 val = *valp;
+-
+-	val &= ~mask;
+-	val |= (field << __ffs(mask)) & mask;
+-	*valp = val;
+-}
+-
+-static inline void reg_write_field(struct unicam_cfg *dev, u32 offset,
+-				   u32 field, u32 mask)
+-{
+-	u32 val = reg_read((dev), (offset));
+-
+-	set_field(&val, field, mask);
+-	reg_write((dev), (offset), val);
+-}
+-
+-/* Power management functions */
+-static inline int unicam_runtime_get(struct unicam_device *dev)
+-{
+-	return pm_runtime_get_sync(&dev->pdev->dev);
+-}
+-
+-static inline void unicam_runtime_put(struct unicam_device *dev)
+-{
+-	pm_runtime_put_sync(&dev->pdev->dev);
+-}
+-
+-/* Format setup functions */
+-static const struct unicam_fmt *find_format_by_code(u32 code)
+-{
+-	unsigned int i;
+-
+-	for (i = 0; i < ARRAY_SIZE(formats); i++) {
+-		if (formats[i].code == code)
+-			return &formats[i];
+-	}
+-
+-	return NULL;
+-}
+-
+-static int check_mbus_format(struct unicam_device *dev,
+-			     const struct unicam_fmt *format)
+-{
+-	struct v4l2_subdev_mbus_code_enum mbus_code;
+-	int ret = 0;
+-	int i;
+-
+-	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
+-		memset(&mbus_code, 0, sizeof(mbus_code));
+-		mbus_code.index = i;
+-		mbus_code.pad = IMAGE_PAD;
+-		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+-
+-		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
+-				       NULL, &mbus_code);
+-
+-		if (!ret && mbus_code.code == format->code)
+-			return 1;
+-	}
+-
+-	return 0;
+-}
+-
+-static const struct unicam_fmt *find_format_by_pix(struct unicam_device *dev,
+-						   u32 pixelformat)
+-{
+-	unsigned int i;
+-
+-	for (i = 0; i < ARRAY_SIZE(formats); i++) {
+-		if (formats[i].fourcc == pixelformat ||
+-		    formats[i].repacked_fourcc == pixelformat) {
+-			if (formats[i].check_variants &&
+-			    !check_mbus_format(dev, &formats[i]))
+-				continue;
+-			return &formats[i];
+-		}
+-	}
+-
+-	return NULL;
+-}
+-
+-static inline unsigned int bytes_per_line(u32 width,
+-					  const struct unicam_fmt *fmt,
+-					  u32 v4l2_fourcc)
+-{
+-	if (v4l2_fourcc == fmt->repacked_fourcc)
+-		/* Repacking always goes to 16bpp */
+-		return ALIGN(width << 1, BPL_ALIGNMENT);
+-	else
+-		return ALIGN((width * fmt->depth) >> 3, BPL_ALIGNMENT);
+-}
+-
+-static int __subdev_get_format(struct unicam_device *dev,
+-			       struct v4l2_mbus_framefmt *fmt, int pad_id)
+-{
+-	struct v4l2_subdev_format sd_fmt = {
+-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+-		.pad = pad_id
+-	};
+-	int ret;
+-
+-	ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_config,
+-			       &sd_fmt);
+-	if (ret < 0)
+-		return ret;
+-
+-	*fmt = sd_fmt.format;
+-
+-	unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__,
+-		   fmt->width, fmt->height, fmt->code);
+-
+-	return 0;
+-}
+-
+-static int __subdev_set_format(struct unicam_device *dev,
+-			       struct v4l2_mbus_framefmt *fmt, int pad_id)
+-{
+-	struct v4l2_subdev_format sd_fmt = {
+-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+-		.pad = pad_id
+-	};
+-	int ret;
+-
+-	sd_fmt.format = *fmt;
+-
+-	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
+-			       &sd_fmt);
+-	if (ret < 0)
+-		return ret;
+-
+-	if (pad_id == IMAGE_PAD)
+-		unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__, fmt->width,
+-			   fmt->height, fmt->code);
+-	else
+-		unicam_dbg(1, dev, "%s Embedded data code:%04x\n", __func__,
+-			   sd_fmt.format.code);
+-
+-	return 0;
+-}
+-
+-static int unicam_calc_format_size_bpl(struct unicam_device *dev,
+-				       const struct unicam_fmt *fmt,
+-				       struct v4l2_format *f)
+-{
+-	unsigned int min_bytesperline;
+-
+-	v4l_bound_align_image(&f->fmt.pix.width, MIN_WIDTH, MAX_WIDTH, 2,
+-			      &f->fmt.pix.height, MIN_HEIGHT, MAX_HEIGHT, 0,
+-			      0);
+-
+-	min_bytesperline = bytes_per_line(f->fmt.pix.width, fmt,
+-					  f->fmt.pix.pixelformat);
+-
+-	if (f->fmt.pix.bytesperline > min_bytesperline &&
+-	    f->fmt.pix.bytesperline <= MAX_BYTESPERLINE)
+-		f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline,
+-						BPL_ALIGNMENT);
+-	else
+-		f->fmt.pix.bytesperline = min_bytesperline;
+-
+-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+-
+-	unicam_dbg(3, dev, "%s: fourcc: %08X size: %dx%d bpl:%d img_size:%d\n",
+-		   __func__,
+-		   f->fmt.pix.pixelformat,
+-		   f->fmt.pix.width, f->fmt.pix.height,
+-		   f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
+-
+-	return 0;
+-}
+-
+-static int unicam_reset_format(struct unicam_node *node)
+-{
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_mbus_framefmt mbus_fmt;
+-	int ret;
+-
+-	if (dev->sensor_embedded_data || node->pad_id != METADATA_PAD) {
+-		ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
+-		if (ret) {
+-			unicam_err(dev, "Failed to get_format - ret %d\n", ret);
+-			return ret;
+-		}
+-
+-		if (mbus_fmt.code != node->fmt->code) {
+-			unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
+-				   node->fmt->code, mbus_fmt.code);
+-			return ret;
+-		}
+-	}
+-
+-	if (node->pad_id == IMAGE_PAD) {
+-		v4l2_fill_pix_format(&node->v_fmt.fmt.pix, &mbus_fmt);
+-		node->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+-		unicam_calc_format_size_bpl(dev, node->fmt, &node->v_fmt);
+-	} else {
+-		node->v_fmt.type = V4L2_BUF_TYPE_META_CAPTURE;
+-		node->v_fmt.fmt.meta.dataformat = V4L2_META_FMT_SENSOR_DATA;
+-		if (dev->sensor_embedded_data) {
+-			node->v_fmt.fmt.meta.buffersize =
+-					mbus_fmt.width * mbus_fmt.height;
+-			node->embedded_lines = mbus_fmt.height;
+-		} else {
+-			node->v_fmt.fmt.meta.buffersize = UNICAM_EMBEDDED_SIZE;
+-			node->embedded_lines = 1;
+-		}
+-	}
+-
+-	node->m_fmt = mbus_fmt;
+-	return 0;
+-}
+-
+-static void unicam_wr_dma_addr(struct unicam_cfg *cfg, dma_addr_t dmaaddr,
+-			       unsigned int buffer_size, int pad_id)
+-{
+-	dma_addr_t endaddr = dmaaddr + buffer_size;
+-
+-	/*
+-	 * dmaaddr and endaddr should be a 32-bit address with the top two bits
+-	 * set to 0x3 to signify uncached access through the Videocore memory
+-	 * controller.
+-	 */
+-	BUG_ON((dmaaddr >> 30) != 0x3 && (endaddr >> 30) != 0x3);
+-
+-	if (pad_id == IMAGE_PAD) {
+-		reg_write(cfg, UNICAM_IBSA0, dmaaddr);
+-		reg_write(cfg, UNICAM_IBEA0, endaddr);
+-	} else {
+-		reg_write(cfg, UNICAM_DBSA0, dmaaddr);
+-		reg_write(cfg, UNICAM_DBEA0, endaddr);
+-	}
+-}
+-
+-static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
+-{
+-	dma_addr_t start_addr, cur_addr;
+-	unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline;
+-	struct unicam_buffer *frm = dev->node[IMAGE_PAD].cur_frm;
+-
+-	if (!frm)
+-		return 0;
+-
+-	start_addr = vb2_dma_contig_plane_dma_addr(&frm->vb.vb2_buf, 0);
+-	cur_addr = reg_read(&dev->cfg, UNICAM_IBWP);
+-	return (unsigned int)(cur_addr - start_addr) / stride;
+-}
+-
+-static inline void unicam_schedule_next_buffer(struct unicam_node *node)
+-{
+-	struct unicam_device *dev = node->dev;
+-	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+-	struct unicam_buffer *buf;
+-	unsigned int size;
+-	dma_addr_t addr;
+-
+-	buf = list_entry(dma_q->active.next, struct unicam_buffer, list);
+-	node->next_frm = buf;
+-	list_del(&buf->list);
+-
+-	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
+-	size = (node->pad_id == IMAGE_PAD) ?
+-			dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage :
+-			dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
+-
+-	unicam_wr_dma_addr(&dev->cfg, addr, size, node->pad_id);
+-}
+-
+-static inline void unicam_schedule_dummy_buffer(struct unicam_node *node)
+-{
+-	struct unicam_device *dev = node->dev;
+-	dma_addr_t addr = node->dummy_buf_dma_addr;
+-
+-	unicam_dbg(3, dev, "Scheduling dummy buffer for node %d\n",
+-		   node->pad_id);
+-
+-	unicam_wr_dma_addr(&dev->cfg, addr, DUMMY_BUF_SIZE, node->pad_id);
+-	node->next_frm = NULL;
+-}
+-
+-static inline void unicam_process_buffer_complete(struct unicam_node *node,
+-						  unsigned int sequence)
+-{
+-	node->cur_frm->vb.field = node->m_fmt.field;
+-	node->cur_frm->vb.sequence = sequence;
+-
+-	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+-}
+-
+-static int unicam_num_nodes_streaming(struct unicam_device *dev)
+-{
+-	return dev->node[IMAGE_PAD].streaming +
+-	       dev->node[METADATA_PAD].streaming;
+-}
+-
+-static int unicam_all_nodes_streaming(struct unicam_device *dev)
+-{
+-	int ret;
+-
+-	ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming;
+-	ret &= !dev->node[METADATA_PAD].open ||
+-	       dev->node[METADATA_PAD].streaming;
+-	return ret;
+-}
+-
+-static void unicam_queue_event_sof(struct unicam_device *unicam)
+-{
+-	struct v4l2_event event = {
+-		.type = V4L2_EVENT_FRAME_SYNC,
+-		.u.frame_sync.frame_sequence = unicam->sequence,
+-	};
+-
+-	v4l2_event_queue(&unicam->node[IMAGE_PAD].video_dev, &event);
+-}
+-
+-/*
+- * unicam_isr : ISR handler for unicam capture
+- * @irq: irq number
+- * @dev_id: dev_id ptr
+- *
+- * It changes status of the captured buffer, takes next buffer from the queue
+- * and sets its address in unicam registers
+- */
+-static irqreturn_t unicam_isr(int irq, void *dev)
+-{
+-	struct unicam_device *unicam = (struct unicam_device *)dev;
+-	struct unicam_cfg *cfg = &unicam->cfg;
+-	unsigned int lines_done = unicam_get_lines_done(dev);
+-	unsigned int sequence = unicam->sequence;
+-	int num_nodes_streaming = unicam_num_nodes_streaming(dev);
+-	int ista, sta;
+-	u64 ts;
+-	int i;
+-
+-	sta = reg_read(cfg, UNICAM_STA);
+-	/* Write value back to clear the interrupts */
+-	reg_write(cfg, UNICAM_STA, sta);
+-
+-	ista = reg_read(cfg, UNICAM_ISTA);
+-	/* Write value back to clear the interrupts */
+-	reg_write(cfg, UNICAM_ISTA, ista);
+-
+-	unicam_dbg(3, unicam, "ISR: ISTA: 0x%X, STA: 0x%X, sequence %d, lines done %d",
+-		   ista, sta, sequence, lines_done);
+-
+-	if (!(sta && (UNICAM_IS | UNICAM_PI0)))
+-		return IRQ_HANDLED;
+-
+-	/*
+-	 * We must run the frame end handler first. If we have a valid next_frm
+-	 * and we get a simultaneout FE + FS interrupt, running the FS handler
+-	 * first would null out the next_frm ptr and we would have lost the
+-	 * buffer forever.
+-	 */
+-	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
+-		/*
+-		 * Ensure we have swapped buffers already as we can't
+-		 * stop the peripheral. If no buffer is available, use a
+-		 * dummy buffer to dump out frames until we get a new buffer
+-		 * to use.
+-		 */
+-		for (i = 0; i < num_nodes_streaming; i++) {
+-			if (unicam->node[i].cur_frm)
+-				unicam_process_buffer_complete(&unicam->node[i],
+-							       sequence);
+-			unicam->node[i].cur_frm = unicam->node[i].next_frm;
+-		}
+-		unicam->sequence++;
+-	}
+-
+-	if (ista & UNICAM_FSI) {
+-		/*
+-		 * Timestamp is to be when the first data byte was captured,
+-		 * aka frame start.
+-		 */
+-		ts = ktime_get_ns();
+-		for (i = 0; i < num_nodes_streaming; i++) {
+-			if (unicam->node[i].cur_frm)
+-				unicam->node[i].cur_frm->vb.vb2_buf.timestamp =
+-								ts;
+-			/*
+-			 * Set the next frame output to go to a dummy frame
+-			 * if we have not managed to obtain another frame
+-			 * from the queue.
+-			 */
+-			unicam_schedule_dummy_buffer(&unicam->node[i]);
+-		}
+-
+-		unicam_queue_event_sof(unicam);
+-	}
+-	/*
+-	 * Cannot swap buffer at frame end, there may be a race condition
+-	 * where the HW does not actually swap it if the new frame has
+-	 * already started.
+-	 */
+-	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
+-		for (i = 0; i < num_nodes_streaming; i++) {
+-			spin_lock(&unicam->node[i].dma_queue_lock);
+-			if (!list_empty(&unicam->node[i].dma_queue.active) &&
+-			    !unicam->node[i].next_frm)
+-				unicam_schedule_next_buffer(&unicam->node[i]);
+-			spin_unlock(&unicam->node[i].dma_queue_lock);
+-		}
+-	}
+-
+-	if (reg_read(&unicam->cfg, UNICAM_ICTL) & UNICAM_FCM) {
+-		/* Switch out of trigger mode if selected */
+-		reg_write_field(&unicam->cfg, UNICAM_ICTL, 1, UNICAM_TFC);
+-		reg_write_field(&unicam->cfg, UNICAM_ICTL, 0, UNICAM_FCM);
+-	}
+-	return IRQ_HANDLED;
+-}
+-
+-static int unicam_querycap(struct file *file, void *priv,
+-			   struct v4l2_capability *cap)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
+-	strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
+-
+-	snprintf(cap->bus_info, sizeof(cap->bus_info),
+-		 "platform:%s", dev->v4l2_dev.name);
+-
+-	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
+-			    V4L2_CAP_READWRITE | V4L2_CAP_DEVICE_CAPS |
+-			    V4L2_CAP_META_CAPTURE;
+-
+-	if (node->pad_id == IMAGE_PAD)
+-		cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
+-	else
+-		cap->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
+-
+-	return 0;
+-}
+-
+-static int unicam_enum_fmt_vid_cap(struct file *file, void  *priv,
+-				   struct v4l2_fmtdesc *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev_mbus_code_enum mbus_code;
+-	const struct unicam_fmt *fmt = NULL;
+-	int index = 0;
+-	int ret = 0;
+-	int i;
+-
+-	if (node->pad_id == METADATA_PAD)
+-		return -EINVAL;
+-
+-	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
+-		memset(&mbus_code, 0, sizeof(mbus_code));
+-		mbus_code.index = i;
+-		mbus_code.pad = IMAGE_PAD;
+-		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+-
+-		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
+-				       NULL, &mbus_code);
+-		if (ret < 0) {
+-			unicam_dbg(2, dev,
+-				   "subdev->enum_mbus_code idx %d returned %d - index invalid\n",
+-				   i, ret);
+-			return -EINVAL;
+-		}
+-
+-		fmt = find_format_by_code(mbus_code.code);
+-		if (fmt) {
+-			if (fmt->fourcc) {
+-				if (index == f->index) {
+-					f->pixelformat = fmt->fourcc;
+-					break;
+-				}
+-				index++;
+-			}
+-			if (fmt->repacked_fourcc) {
+-				if (index == f->index) {
+-					f->pixelformat = fmt->repacked_fourcc;
+-					break;
+-				}
+-				index++;
+-			}
+-		}
+-	}
+-
+-	return 0;
+-}
+-
+-static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
+-				struct v4l2_format *f)
+-{
+-	struct v4l2_mbus_framefmt mbus_fmt = {0};
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	const struct unicam_fmt *fmt = NULL;
+-	int ret;
+-
+-	if (node->pad_id != IMAGE_PAD)
+-		return -EINVAL;
+-
+-	/*
+-	 * If a flip has occurred in the sensor, the fmt code might have
+-	 * changed. So we will need to re-fetch the format from the subdevice.
+-	 */
+-	ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
+-	if (ret)
+-		return -EINVAL;
+-
+-	/* Find the V4L2 format from mbus code. We must match a known format. */
+-	fmt = find_format_by_code(mbus_fmt.code);
+-	if (!fmt)
+-		return -EINVAL;
+-
+-	if (node->fmt != fmt) {
+-		/*
+-		 * The sensor format has changed so the pixelformat needs to
+-		 * be updated. Try and retain the packed/unpacked choice if
+-		 * at all possible.
+-		 */
+-		if (node->fmt->repacked_fourcc ==
+-						node->v_fmt.fmt.pix.pixelformat)
+-			/* Using the repacked format */
+-			node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
+-		else
+-			/* Using the native format */
+-			node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+-
+-		node->fmt = fmt;
+-	}
+-
+-	*f = node->v_fmt;
+-
+-	return 0;
+-}
+-
+-static
+-const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev)
+-{
+-	struct v4l2_subdev_mbus_code_enum mbus_code;
+-	const struct unicam_fmt *fmt = NULL;
+-	int ret = 0;
+-	int j;
+-
+-	for (j = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++j) {
+-		memset(&mbus_code, 0, sizeof(mbus_code));
+-		mbus_code.index = j;
+-		mbus_code.pad = IMAGE_PAD;
+-		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+-
+-		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
+-				       &mbus_code);
+-		if (ret < 0) {
+-			unicam_dbg(2, dev,
+-				   "subdev->enum_mbus_code idx %d returned %d - continue\n",
+-				   j, ret);
+-			continue;
+-		}
+-
+-		unicam_dbg(2, dev, "subdev %s: code: 0x%08x idx: %d\n",
+-			   dev->sensor->name, mbus_code.code, j);
+-
+-		fmt = find_format_by_code(mbus_code.code);
+-		unicam_dbg(2, dev, "fmt 0x%08x returned as %p, V4L2 FOURCC 0x%08x, csi_dt 0x%02x\n",
+-			   mbus_code.code, fmt, fmt ? fmt->fourcc : 0,
+-			   fmt ? fmt->csi_dt : 0);
+-		if (fmt)
+-			return fmt;
+-	}
+-
+-	return NULL;
+-}
+-
+-static int unicam_try_fmt_vid_cap(struct file *file, void *priv,
+-				  struct v4l2_format *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev_format sd_fmt = {
+-		.which = V4L2_SUBDEV_FORMAT_TRY,
+-		.pad = IMAGE_PAD
+-	};
+-	struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
+-	const struct unicam_fmt *fmt;
+-	int ret;
+-
+-	if (node->pad_id == METADATA_PAD)
+-		return -EINVAL;
+-
+-	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
+-	if (!fmt) {
+-		/* Pixel format not supported by unicam. Choose the first
+-		 * supported format, and let the sensor choose something else.
+-		 */
+-		unicam_dbg(3, dev, "Fourcc format (0x%08x) not found. Use first format.\n",
+-			   f->fmt.pix.pixelformat);
+-
+-		fmt = &formats[0];
+-		f->fmt.pix.pixelformat = fmt->fourcc;
+-	}
+-
+-	v4l2_fill_mbus_format(mbus_fmt, &f->fmt.pix, fmt->code);
+-	/*
+-	 * No support for receiving interlaced video, so never
+-	 * request it from the sensor subdev.
+-	 */
+-	mbus_fmt->field = V4L2_FIELD_NONE;
+-
+-	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
+-			       &sd_fmt);
+-	if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+-		return ret;
+-
+-	if (mbus_fmt->field != V4L2_FIELD_NONE)
+-		unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
+-
+-	v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
+-	if (mbus_fmt->code != fmt->code) {
+-		/* Sensor has returned an alternate format */
+-		fmt = find_format_by_code(mbus_fmt->code);
+-		if (!fmt) {
+-			/* The alternate format is one unicam can't support.
+-			 * Find the first format that is supported by both, and
+-			 * then set that.
+-			 */
+-			fmt = get_first_supported_format(dev);
+-			mbus_fmt->code = fmt->code;
+-
+-			ret = v4l2_subdev_call(dev->sensor, pad, set_fmt,
+-					       dev->sensor_config, &sd_fmt);
+-			if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
+-				return ret;
+-
+-			if (mbus_fmt->field != V4L2_FIELD_NONE)
+-				unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
+-
+-			v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
+-
+-			if (mbus_fmt->code != fmt->code) {
+-				/* We've set a format that the sensor reports
+-				 * as being supported, but it refuses to set it.
+-				 * Not much else we can do.
+-				 * Assume that the sensor driver may accept the
+-				 * format when it is set (rather than tried).
+-				 */
+-				unicam_err(dev, "Sensor won't accept default format, and Unicam can't support sensor default\n");
+-			}
+-		}
+-
+-		if (fmt->fourcc)
+-			f->fmt.pix.pixelformat = fmt->fourcc;
+-		else
+-			f->fmt.pix.pixelformat = fmt->repacked_fourcc;
+-	}
+-
+-	return unicam_calc_format_size_bpl(dev, fmt, f);
+-}
+-
+-static int unicam_s_fmt_vid_cap(struct file *file, void *priv,
+-				struct v4l2_format *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct vb2_queue *q = &node->buffer_queue;
+-	struct v4l2_mbus_framefmt mbus_fmt = {0};
+-	const struct unicam_fmt *fmt;
+-	int ret;
+-
+-	if (vb2_is_busy(q))
+-		return -EBUSY;
+-
+-	ret = unicam_try_fmt_vid_cap(file, priv, f);
+-	if (ret < 0)
+-		return ret;
+-
+-	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
+-	if (!fmt) {
+-		/* Unknown pixel format - adopt a default.
+-		 * This shouldn't happen as try_fmt should have resolved any
+-		 * issues first.
+-		 */
+-		fmt = get_first_supported_format(dev);
+-		if (!fmt)
+-			/* It shouldn't be possible to get here with no
+-			 * supported formats
+-			 */
+-			return -EINVAL;
+-		f->fmt.pix.pixelformat = fmt->fourcc;
+-		return -EINVAL;
+-	}
+-
+-	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, fmt->code);
+-
+-	ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id);
+-	if (ret) {
+-		unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
+-			   __func__, ret);
+-		return ret;
+-	}
+-
+-	/* Just double check nothing has gone wrong */
+-	if (mbus_fmt.code != fmt->code) {
+-		unicam_dbg(3, dev,
+-			   "%s subdev changed format on us, this should not happen\n",
+-			   __func__);
+-		return -EINVAL;
+-	}
+-
+-	node->fmt = fmt;
+-	node->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat;
+-	node->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline;
+-	unicam_reset_format(node);
+-
+-	unicam_dbg(3, dev,
+-		   "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n",
+-		   __func__, node->v_fmt.fmt.pix.width,
+-		   node->v_fmt.fmt.pix.height, mbus_fmt.code,
+-		   node->v_fmt.fmt.pix.pixelformat);
+-
+-	*f = node->v_fmt;
+-
+-	return 0;
+-}
+-
+-static int unicam_enum_fmt_meta_cap(struct file *file, void *priv,
+-				    struct v4l2_fmtdesc *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev_mbus_code_enum mbus_code;
+-	const struct unicam_fmt *fmt = NULL;
+-	int ret = 0;
+-
+-	if (node->pad_id != METADATA_PAD || f->index != 0)
+-		return -EINVAL;
+-
+-	if (dev->sensor_embedded_data) {
+-		memset(&mbus_code, 0, sizeof(mbus_code));
+-		mbus_code.index = f->index;
+-		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+-		mbus_code.pad = METADATA_PAD;
+-
+-		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
+-				       &mbus_code);
+-		if (ret < 0) {
+-			unicam_dbg(2, dev,
+-				   "subdev->enum_mbus_code idx 0 returned %d - index invalid\n",
+-				   ret);
+-			return -EINVAL;
+-		}
+-	} else {
+-		mbus_code.code = MEDIA_BUS_FMT_SENSOR_DATA;
+-	}
+-
+-	fmt = find_format_by_code(mbus_code.code);
+-	if (fmt)
+-		f->pixelformat = fmt->fourcc;
+-
+-	return 0;
+-}
+-
+-static int unicam_g_fmt_meta_cap(struct file *file, void *priv,
+-				 struct v4l2_format *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-
+-	if (node->pad_id != METADATA_PAD)
+-		return -EINVAL;
+-
+-	*f = node->v_fmt;
+-
+-	return 0;
+-}
+-
+-static int unicam_try_fmt_meta_cap(struct file *file, void *priv,
+-				   struct v4l2_format *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-
+-	if (node->pad_id != METADATA_PAD)
+-		return -EINVAL;
+-
+-	*f = node->v_fmt;
+-
+-	return 0;
+-}
+-
+-static int unicam_s_fmt_meta_cap(struct file *file, void *priv,
+-				 struct v4l2_format *f)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_mbus_framefmt mbus_fmt = { 0 };
+-	const struct unicam_fmt *fmt;
+-	int ret;
+-
+-	if (node->pad_id == IMAGE_PAD)
+-		return -EINVAL;
+-
+-	if (dev->sensor_embedded_data) {
+-		fmt = find_format_by_pix(dev, f->fmt.meta.dataformat);
+-		if (!fmt) {
+-			unicam_err(dev, "unknown format: V4L2 pix 0x%08x\n",
+-				   f->fmt.meta.dataformat);
+-			return -EINVAL;
+-		}
+-		mbus_fmt.code = fmt->code;
+-		ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id);
+-		if (ret) {
+-			unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
+-				   __func__, ret);
+-			return ret;
+-		}
+-	}
+-
+-	*f = node->v_fmt;
+-
+-	unicam_dbg(3, dev, "%s size %d, V4L2 pix 0x%08x\n",
+-		   __func__, node->v_fmt.fmt.meta.buffersize,
+-		   node->v_fmt.fmt.meta.dataformat);
+-
+-	return 0;
+-}
+-
+-static int unicam_queue_setup(struct vb2_queue *vq,
+-			      unsigned int *nbuffers,
+-			      unsigned int *nplanes,
+-			      unsigned int sizes[],
+-			      struct device *alloc_devs[])
+-{
+-	struct unicam_node *node = vb2_get_drv_priv(vq);
+-	struct unicam_device *dev = node->dev;
+-	unsigned int size = node->pad_id == IMAGE_PAD ?
+-				    node->v_fmt.fmt.pix.sizeimage :
+-				    node->v_fmt.fmt.meta.buffersize;
+-
+-	if (vq->num_buffers + *nbuffers < 3)
+-		*nbuffers = 3 - vq->num_buffers;
+-
+-	if (*nplanes) {
+-		if (sizes[0] < size) {
+-			unicam_err(dev, "sizes[0] %i < size %u\n", sizes[0],
+-				   size);
+-			return -EINVAL;
+-		}
+-		size = sizes[0];
+-	}
+-
+-	*nplanes = 1;
+-	sizes[0] = size;
+-
+-	return 0;
+-}
+-
+-static int unicam_buffer_prepare(struct vb2_buffer *vb)
+-{
+-	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
+-	struct unicam_device *dev = node->dev;
+-	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
+-					      vb.vb2_buf);
+-	unsigned long size;
+-
+-	if (WARN_ON(!node->fmt))
+-		return -EINVAL;
+-
+-	size = node->pad_id == IMAGE_PAD ? node->v_fmt.fmt.pix.sizeimage :
+-					   node->v_fmt.fmt.meta.buffersize;
+-	if (vb2_plane_size(vb, 0) < size) {
+-		unicam_err(dev, "data will not fit into plane (%lu < %lu)\n",
+-			   vb2_plane_size(vb, 0), size);
+-		return -EINVAL;
+-	}
+-
+-	vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
+-	return 0;
+-}
+-
+-static void unicam_buffer_queue(struct vb2_buffer *vb)
+-{
+-	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
+-	struct unicam_buffer *buf = container_of(vb, struct unicam_buffer,
+-					      vb.vb2_buf);
+-	struct unicam_dmaqueue *dma_queue = &node->dma_queue;
+-	unsigned long flags = 0;
+-
+-	spin_lock_irqsave(&node->dma_queue_lock, flags);
+-	list_add_tail(&buf->list, &dma_queue->active);
+-	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+-}
+-
+-static void unicam_set_packing_config(struct unicam_device *dev)
+-{
+-	int pack, unpack;
+-	u32 val;
+-
+-	if (dev->node[IMAGE_PAD].v_fmt.fmt.pix.pixelformat ==
+-	    dev->node[IMAGE_PAD].fmt->fourcc) {
+-		unpack = UNICAM_PUM_NONE;
+-		pack = UNICAM_PPM_NONE;
+-	} else {
+-		switch (dev->node[IMAGE_PAD].fmt->depth) {
+-		case 8:
+-			unpack = UNICAM_PUM_UNPACK8;
+-			break;
+-		case 10:
+-			unpack = UNICAM_PUM_UNPACK10;
+-			break;
+-		case 12:
+-			unpack = UNICAM_PUM_UNPACK12;
+-			break;
+-		case 14:
+-			unpack = UNICAM_PUM_UNPACK14;
+-			break;
+-		case 16:
+-			unpack = UNICAM_PUM_UNPACK16;
+-			break;
+-		default:
+-			unpack = UNICAM_PUM_NONE;
+-			break;
+-		}
+-
+-		/* Repacking is always to 16bpp */
+-		pack = UNICAM_PPM_PACK16;
+-	}
+-
+-	val = 0;
+-	set_field(&val, unpack, UNICAM_PUM_MASK);
+-	set_field(&val, pack, UNICAM_PPM_MASK);
+-	reg_write(&dev->cfg, UNICAM_IPIPE, val);
+-}
+-
+-static void unicam_cfg_image_id(struct unicam_device *dev)
+-{
+-	struct unicam_cfg *cfg = &dev->cfg;
+-
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+-		/* CSI2 mode */
+-		reg_write(cfg, UNICAM_IDI0,
+-			  (dev->virtual_channel << 6) |
+-					      dev->node[IMAGE_PAD].fmt->csi_dt);
+-	} else {
+-		/* CCP2 mode */
+-		reg_write(cfg, UNICAM_IDI0,
+-			  0x80 | dev->node[IMAGE_PAD].fmt->csi_dt);
+-	}
+-}
+-
+-static void unicam_enable_ed(struct unicam_device *dev)
+-{
+-	struct unicam_cfg *cfg = &dev->cfg;
+-	u32 val = reg_read(cfg, UNICAM_DCS);
+-
+-	set_field(&val, 2, UNICAM_EDL_MASK);
+-	/* Do not wrap at the end of the embedded data buffer */
+-	set_field(&val, 0, UNICAM_DBOB);
+-
+-	reg_write(cfg, UNICAM_DCS, val);
+-}
+-
+-static void unicam_start_rx(struct unicam_device *dev, dma_addr_t *addr)
+-{
+-	struct unicam_cfg *cfg = &dev->cfg;
+-	int line_int_freq = dev->node[IMAGE_PAD].v_fmt.fmt.pix.height >> 2;
+-	unsigned int size, i;
+-	u32 val;
+-
+-	if (line_int_freq < 128)
+-		line_int_freq = 128;
+-
+-	/* Enable lane clocks */
+-	val = 1;
+-	for (i = 0; i < dev->active_data_lanes; i++)
+-		val = val << 2 | 1;
+-	clk_write(cfg, val);
+-
+-	/* Basic init */
+-	reg_write(cfg, UNICAM_CTRL, UNICAM_MEM);
+-
+-	/* Enable analogue control, and leave in reset. */
+-	val = UNICAM_AR;
+-	set_field(&val, 7, UNICAM_CTATADJ_MASK);
+-	set_field(&val, 7, UNICAM_PTATADJ_MASK);
+-	reg_write(cfg, UNICAM_ANA, val);
+-	usleep_range(1000, 2000);
+-
+-	/* Come out of reset */
+-	reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_AR);
+-
+-	/* Peripheral reset */
+-	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR);
+-	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR);
+-
+-	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE);
+-
+-	/* Enable Rx control. */
+-	val = reg_read(cfg, UNICAM_CTRL);
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+-		set_field(&val, UNICAM_CPM_CSI2, UNICAM_CPM_MASK);
+-		set_field(&val, UNICAM_DCM_STROBE, UNICAM_DCM_MASK);
+-	} else {
+-		set_field(&val, UNICAM_CPM_CCP2, UNICAM_CPM_MASK);
+-		set_field(&val, dev->bus_flags, UNICAM_DCM_MASK);
+-	}
+-	/* Packet framer timeout */
+-	set_field(&val, 0xf, UNICAM_PFT_MASK);
+-	set_field(&val, 128, UNICAM_OET_MASK);
+-	reg_write(cfg, UNICAM_CTRL, val);
+-
+-	reg_write(cfg, UNICAM_IHWIN, 0);
+-	reg_write(cfg, UNICAM_IVWIN, 0);
+-
+-	/* AXI bus access QoS setup */
+-	val = reg_read(&dev->cfg, UNICAM_PRI);
+-	set_field(&val, 0, UNICAM_BL_MASK);
+-	set_field(&val, 0, UNICAM_BS_MASK);
+-	set_field(&val, 0xe, UNICAM_PP_MASK);
+-	set_field(&val, 8, UNICAM_NP_MASK);
+-	set_field(&val, 2, UNICAM_PT_MASK);
+-	set_field(&val, 1, UNICAM_PE);
+-	reg_write(cfg, UNICAM_PRI, val);
+-
+-	reg_write_field(cfg, UNICAM_ANA, 0, UNICAM_DDL);
+-
+-	/* Always start in trigger frame capture mode (UNICAM_FCM set) */
+-	val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM | UNICAM_IBOB;
+-	set_field(&val,  line_int_freq, UNICAM_LCIE_MASK);
+-	reg_write(cfg, UNICAM_ICTL, val);
+-	reg_write(cfg, UNICAM_STA, UNICAM_STA_MASK_ALL);
+-	reg_write(cfg, UNICAM_ISTA, UNICAM_ISTA_MASK_ALL);
+-
+-	/* tclk_term_en */
+-	reg_write_field(cfg, UNICAM_CLT, 2, UNICAM_CLT1_MASK);
+-	/* tclk_settle */
+-	reg_write_field(cfg, UNICAM_CLT, 6, UNICAM_CLT2_MASK);
+-	/* td_term_en */
+-	reg_write_field(cfg, UNICAM_DLT, 2, UNICAM_DLT1_MASK);
+-	/* ths_settle */
+-	reg_write_field(cfg, UNICAM_DLT, 6, UNICAM_DLT2_MASK);
+-	/* trx_enable */
+-	reg_write_field(cfg, UNICAM_DLT, 0, UNICAM_DLT3_MASK);
+-
+-	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_SOE);
+-
+-	/* Packet compare setup - required to avoid missing frame ends */
+-	val = 0;
+-	set_field(&val, 1, UNICAM_PCE);
+-	set_field(&val, 1, UNICAM_GI);
+-	set_field(&val, 1, UNICAM_CPH);
+-	set_field(&val, 0, UNICAM_PCVC_MASK);
+-	set_field(&val, 1, UNICAM_PCDT_MASK);
+-	reg_write(cfg, UNICAM_CMP0, val);
+-
+-	/* Enable clock lane and set up terminations */
+-	val = 0;
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+-		/* CSI2 */
+-		set_field(&val, 1, UNICAM_CLE);
+-		set_field(&val, 1, UNICAM_CLLPE);
+-		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
+-			set_field(&val, 1, UNICAM_CLTRE);
+-			set_field(&val, 1, UNICAM_CLHSE);
+-		}
+-	} else {
+-		/* CCP2 */
+-		set_field(&val, 1, UNICAM_CLE);
+-		set_field(&val, 1, UNICAM_CLHSE);
+-		set_field(&val, 1, UNICAM_CLTRE);
+-	}
+-	reg_write(cfg, UNICAM_CLK, val);
+-
+-	/*
+-	 * Enable required data lanes with appropriate terminations.
+-	 * The same value needs to be written to UNICAM_DATn registers for
+-	 * the active lanes, and 0 for inactive ones.
+-	 */
+-	val = 0;
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
+-		/* CSI2 */
+-		set_field(&val, 1, UNICAM_DLE);
+-		set_field(&val, 1, UNICAM_DLLPE);
+-		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
+-			set_field(&val, 1, UNICAM_DLTRE);
+-			set_field(&val, 1, UNICAM_DLHSE);
+-		}
+-	} else {
+-		/* CCP2 */
+-		set_field(&val, 1, UNICAM_DLE);
+-		set_field(&val, 1, UNICAM_DLHSE);
+-		set_field(&val, 1, UNICAM_DLTRE);
+-	}
+-	reg_write(cfg, UNICAM_DAT0, val);
+-
+-	if (dev->active_data_lanes == 1)
+-		val = 0;
+-	reg_write(cfg, UNICAM_DAT1, val);
+-
+-	if (dev->max_data_lanes > 2) {
+-		/*
+-		 * Registers UNICAM_DAT2 and UNICAM_DAT3 only valid if the
+-		 * instance supports more than 2 data lanes.
+-		 */
+-		if (dev->active_data_lanes == 2)
+-			val = 0;
+-		reg_write(cfg, UNICAM_DAT2, val);
+-
+-		if (dev->active_data_lanes == 3)
+-			val = 0;
+-		reg_write(cfg, UNICAM_DAT3, val);
+-	}
+-
+-	reg_write(&dev->cfg, UNICAM_IBLS,
+-		  dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline);
+-	size = dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage;
+-	unicam_wr_dma_addr(&dev->cfg, addr[IMAGE_PAD], size, IMAGE_PAD);
+-	unicam_set_packing_config(dev);
+-	unicam_cfg_image_id(dev);
+-
+-	val = reg_read(cfg, UNICAM_MISC);
+-	set_field(&val, 1, UNICAM_FL0);
+-	set_field(&val, 1, UNICAM_FL1);
+-	reg_write(cfg, UNICAM_MISC, val);
+-
+-	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) {
+-		size = dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
+-		unicam_enable_ed(dev);
+-		unicam_wr_dma_addr(&dev->cfg, addr[METADATA_PAD], size,
+-				   METADATA_PAD);
+-	}
+-
+-	/* Enable peripheral */
+-	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPE);
+-
+-	/* Load image pointers */
+-	reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_LIP_MASK);
+-
+-	/* Load embedded data buffer pointers if needed */
+-	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data)
+-		reg_write_field(cfg, UNICAM_DCS, 1, UNICAM_LDP);
+-
+-	/*
+-	 * Enable trigger only for the first frame to
+-	 * sync correctly to the FS from the source.
+-	 */
+-	reg_write_field(cfg, UNICAM_ICTL, 1, UNICAM_TFC);
+-}
+-
+-static void unicam_disable(struct unicam_device *dev)
+-{
+-	struct unicam_cfg *cfg = &dev->cfg;
+-
+-	/* Analogue lane control disable */
+-	reg_write_field(cfg, UNICAM_ANA, 1, UNICAM_DDL);
+-
+-	/* Stop the output engine */
+-	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_SOE);
+-
+-	/* Disable the data lanes. */
+-	reg_write(cfg, UNICAM_DAT0, 0);
+-	reg_write(cfg, UNICAM_DAT1, 0);
+-
+-	if (dev->max_data_lanes > 2) {
+-		reg_write(cfg, UNICAM_DAT2, 0);
+-		reg_write(cfg, UNICAM_DAT3, 0);
+-	}
+-
+-	/* Peripheral reset */
+-	reg_write_field(cfg, UNICAM_CTRL, 1, UNICAM_CPR);
+-	usleep_range(50, 100);
+-	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPR);
+-
+-	/* Disable peripheral */
+-	reg_write_field(cfg, UNICAM_CTRL, 0, UNICAM_CPE);
+-
+-	/* Clear ED setup */
+-	reg_write(cfg, UNICAM_DCS, 0);
+-
+-	/* Disable all lane clocks */
+-	clk_write(cfg, 0);
+-}
+-
+-static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count)
+-{
+-	struct unicam_node *node = vb2_get_drv_priv(vq);
+-	struct unicam_device *dev = node->dev;
+-	struct unicam_buffer *buf;
+-	dma_addr_t buffer_addr[MAX_NODES] = { 0 };
+-	int num_nodes_streaming;
+-	unsigned long flags;
+-	int ret, i;
+-
+-	node->streaming = 1;
+-	if (!unicam_all_nodes_streaming(dev)) {
+-		unicam_dbg(3, dev, "Not all nodes are streaming yet.");
+-		return 0;
+-	}
+-
+-	dev->sequence = 0;
+-	ret = unicam_runtime_get(dev);
+-	if (ret < 0) {
+-		unicam_dbg(3, dev, "unicam_runtime_get failed\n");
+-		return ret;
+-	}
+-
+-	dev->active_data_lanes = dev->max_data_lanes;
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY &&
+-	    v4l2_subdev_has_op(dev->sensor, video, g_mbus_config)) {
+-		struct v4l2_mbus_config mbus_config;
+-
+-		ret = v4l2_subdev_call(dev->sensor, video, g_mbus_config,
+-				       &mbus_config);
+-		if (ret < 0) {
+-			unicam_dbg(3, dev, "g_mbus_config failed\n");
+-			goto err_pm_put;
+-		}
+-
+-		dev->active_data_lanes =
+-			(mbus_config.flags & V4L2_MBUS_CSI2_LANE_MASK) >>
+-					__ffs(V4L2_MBUS_CSI2_LANE_MASK);
+-		if (!dev->active_data_lanes)
+-			dev->active_data_lanes = dev->max_data_lanes;
+-	}
+-	if (dev->active_data_lanes > dev->max_data_lanes) {
+-		unicam_err(dev,	"Device has requested %u data lanes, which is >%u configured in DT\n",
+-			   dev->active_data_lanes, dev->max_data_lanes);
+-		ret = -EINVAL;
+-		goto err_pm_put;
+-	}
+-
+-	unicam_dbg(1, dev, "Running with %u data lanes\n",
+-		   dev->active_data_lanes);
+-
+-	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
+-	if (ret) {
+-		unicam_err(dev, "failed to set up clock\n");
+-		goto err_pm_put;
+-	}
+-
+-	ret = clk_prepare_enable(dev->clock);
+-	if (ret) {
+-		unicam_err(dev, "Failed to enable CSI clock: %d\n", ret);
+-		goto err_pm_put;
+-	}
+-
+-	num_nodes_streaming = unicam_num_nodes_streaming(dev);
+-	for (i = 0; i < num_nodes_streaming; i++) {
+-		spin_lock_irqsave(&dev->node[i].dma_queue_lock, flags);
+-		buf = list_entry(dev->node[i].dma_queue.active.next,
+-				 struct unicam_buffer, list);
+-		dev->node[i].cur_frm = buf;
+-		dev->node[i].next_frm = buf;
+-		list_del(&buf->list);
+-		spin_unlock_irqrestore(&dev->node[i].dma_queue_lock, flags);
+-		buffer_addr[i] =
+-		vb2_dma_contig_plane_dma_addr(&dev->node[i].cur_frm->vb.vb2_buf,
+-					      0);
+-	}
+-
+-	unicam_start_rx(dev, buffer_addr);
+-
+-	ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1);
+-	if (ret < 0) {
+-		unicam_err(dev, "stream on failed in subdev\n");
+-		goto err_disable_unicam;
+-	}
+-
+-	return 0;
+-
+-err_disable_unicam:
+-	node->streaming = 0;
+-	unicam_disable(dev);
+-	clk_disable_unprepare(dev->clock);
+-err_pm_put:
+-	unicam_runtime_put(dev);
+-
+-	return ret;
+-}
+-
+-static void unicam_stop_streaming(struct vb2_queue *vq)
+-{
+-	struct unicam_node *node = vb2_get_drv_priv(vq);
+-	struct unicam_device *dev = node->dev;
+-	struct unicam_dmaqueue *dma_q = &node->dma_queue;
+-	struct unicam_buffer *buf, *tmp;
+-	unsigned long flags;
+-
+-	node->streaming = 0;
+-
+-	if (node->pad_id == IMAGE_PAD) {
+-		/* Stop streaming the sensor and disable the peripheral.
+-		 * We cannot continue streaming embedded data with the
+-		 * image pad disabled.
+-		 */
+-		if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0)
+-			unicam_err(dev, "stream off failed in subdev\n");
+-
+-		unicam_disable(dev);
+-		clk_disable_unprepare(dev->clock);
+-		unicam_runtime_put(dev);
+-
+-	} else if (node->pad_id == METADATA_PAD) {
+-		/* Allow the hardware to spin in the dummy buffer.
+-		 * This is only really needed if the embedded data pad is
+-		 * disabled before the image pad.  The 0x3 in the top two bits
+-		 * signifies uncached accesses through the Videocore memory
+-		 * controller.
+-		 */
+-		unicam_wr_dma_addr(&dev->cfg, node->dummy_buf_dma_addr,
+-				   DUMMY_BUF_SIZE, METADATA_PAD);
+-	}
+-
+-	/* Clear all queued buffers for the node */
+-	spin_lock_irqsave(&node->dma_queue_lock, flags);
+-	list_for_each_entry_safe(buf, tmp, &dma_q->active, list) {
+-		list_del(&buf->list);
+-		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+-	}
+-
+-	if (node->cur_frm)
+-		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_ERROR);
+-	if (node->next_frm && node->cur_frm != node->next_frm)
+-		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_ERROR);
+-
+-	node->cur_frm = NULL;
+-	node->next_frm = NULL;
+-	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
+-}
+-
+-static int unicam_enum_input(struct file *file, void *priv,
+-			     struct v4l2_input *inp)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	if (inp->index != 0)
+-		return -EINVAL;
+-
+-	inp->type = V4L2_INPUT_TYPE_CAMERA;
+-	if (v4l2_subdev_has_op(dev->sensor, video, s_dv_timings)) {
+-		inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+-		inp->std = 0;
+-	} else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) {
+-		inp->capabilities = V4L2_IN_CAP_STD;
+-		if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std)
+-					< 0)
+-			inp->std = V4L2_STD_ALL;
+-	} else {
+-		inp->capabilities = 0;
+-		inp->std = 0;
+-	}
+-	sprintf(inp->name, "Camera 0");
+-	return 0;
+-}
+-
+-static int unicam_g_input(struct file *file, void *priv, unsigned int *i)
+-{
+-	*i = 0;
+-
+-	return 0;
+-}
+-
+-static int unicam_s_input(struct file *file, void *priv, unsigned int i)
+-{
+-	/*
+-	 * FIXME: Ideally we would like to be able to query the source
+-	 * subdevice for information over the input connectors it supports,
+-	 * and map that through in to a call to video_ops->s_routing.
+-	 * There is no infrastructure support for defining that within
+-	 * devicetree at present. Until that is implemented we can't
+-	 * map a user physical connector number to s_routing input number.
+-	 */
+-	if (i > 0)
+-		return -EINVAL;
+-
+-	return 0;
+-}
+-
+-static int unicam_querystd(struct file *file, void *priv,
+-			   v4l2_std_id *std)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, video, querystd, std);
+-}
+-
+-static int unicam_g_std(struct file *file, void *priv, v4l2_std_id *std)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, video, g_std, std);
+-}
+-
+-static int unicam_s_std(struct file *file, void *priv, v4l2_std_id std)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	int ret;
+-	v4l2_std_id current_std;
+-
+-	ret = v4l2_subdev_call(dev->sensor, video, g_std, &current_std);
+-	if (ret)
+-		return ret;
+-
+-	if (std == current_std)
+-		return 0;
+-
+-	if (vb2_is_busy(&node->buffer_queue))
+-		return -EBUSY;
+-
+-	ret = v4l2_subdev_call(dev->sensor, video, s_std, std);
+-
+-	/* Force recomputation of bytesperline */
+-	node->v_fmt.fmt.pix.bytesperline = 0;
+-
+-	unicam_reset_format(node);
+-
+-	return ret;
+-}
+-
+-static int unicam_s_edid(struct file *file, void *priv, struct v4l2_edid *edid)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, pad, set_edid, edid);
+-}
+-
+-static int unicam_g_edid(struct file *file, void *priv, struct v4l2_edid *edid)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, pad, get_edid, edid);
+-}
+-
+-static int unicam_s_selection(struct file *file, void *priv,
+-			      struct v4l2_selection *sel)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev_selection sdsel = {
+-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+-		.target = sel->target,
+-		.flags = sel->flags,
+-		.r = sel->r,
+-	};
+-
+-	return v4l2_subdev_call(dev->sensor, pad, set_selection, NULL, &sdsel);
+-}
+-
+-static int unicam_g_selection(struct file *file, void *priv,
+-			      struct v4l2_selection *sel)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev_selection sdsel = {
+-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+-		.target = sel->target,
+-	};
+-	int ret;
+-
+-	ret = v4l2_subdev_call(dev->sensor, pad, get_selection, NULL, &sdsel);
+-	if (!ret)
+-		sel->r = sdsel.r;
+-
+-	return ret;
+-}
+-
+-static int unicam_enum_framesizes(struct file *file, void *priv,
+-				  struct v4l2_frmsizeenum *fsize)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	const struct unicam_fmt *fmt;
+-	struct v4l2_subdev_frame_size_enum fse;
+-	int ret;
+-
+-	if (node->pad_id == IMAGE_PAD) {
+-		/* check for valid format */
+-		fmt = find_format_by_pix(dev, fsize->pixel_format);
+-		if (!fmt) {
+-			unicam_dbg(3, dev, "Invalid pixel code: %x\n",
+-				   fsize->pixel_format);
+-			return -EINVAL;
+-		}
+-		fse.code = fmt->code;
+-	} else {
+-		/* This pad is for embedded data, so just set the format */
+-		fse.code = MEDIA_BUS_FMT_SENSOR_DATA;
+-	}
+-
+-	fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
+-	fse.index = fsize->index;
+-	fse.pad = node->pad_id;
+-
+-	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_size, NULL, &fse);
+-	if (ret)
+-		return ret;
+-
+-	unicam_dbg(1, dev, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
+-		   __func__, fse.index, fse.code, fse.min_width, fse.max_width,
+-		   fse.min_height, fse.max_height);
+-
+-	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+-	fsize->discrete.width = fse.max_width;
+-	fsize->discrete.height = fse.max_height;
+-
+-	return 0;
+-}
+-
+-static int unicam_enum_frameintervals(struct file *file, void *priv,
+-				      struct v4l2_frmivalenum *fival)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	const struct unicam_fmt *fmt;
+-	struct v4l2_subdev_frame_interval_enum fie = {
+-		.index = fival->index,
+-		.width = fival->width,
+-		.height = fival->height,
+-		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
+-	};
+-	int ret;
+-
+-	fmt = find_format_by_pix(dev, fival->pixel_format);
+-	if (!fmt)
+-		return -EINVAL;
+-
+-	fie.code = fmt->code;
+-	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_interval,
+-			       NULL, &fie);
+-	if (ret)
+-		return ret;
+-
+-	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
+-	fival->discrete = fie.interval;
+-
+-	return 0;
+-}
+-
+-static int unicam_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_g_parm_cap(video_devdata(file), dev->sensor, a);
+-}
+-
+-static int unicam_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_s_parm_cap(video_devdata(file), dev->sensor, a);
+-}
+-
+-static int unicam_g_dv_timings(struct file *file, void *priv,
+-			       struct v4l2_dv_timings *timings)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, video, g_dv_timings, timings);
+-}
+-
+-static int unicam_s_dv_timings(struct file *file, void *priv,
+-			       struct v4l2_dv_timings *timings)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_dv_timings current_timings;
+-	int ret;
+-
+-	ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings,
+-			       &current_timings);
+-
+-	if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
+-		return 0;
+-
+-	if (vb2_is_busy(&node->buffer_queue))
+-		return -EBUSY;
+-
+-	ret = v4l2_subdev_call(dev->sensor, video, s_dv_timings, timings);
+-
+-	/* Force recomputation of bytesperline */
+-	node->v_fmt.fmt.pix.bytesperline = 0;
+-
+-	unicam_reset_format(node);
+-
+-	return ret;
+-}
+-
+-static int unicam_query_dv_timings(struct file *file, void *priv,
+-				   struct v4l2_dv_timings *timings)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, video, query_dv_timings, timings);
+-}
+-
+-static int unicam_enum_dv_timings(struct file *file, void *priv,
+-				  struct v4l2_enum_dv_timings *timings)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, pad, enum_dv_timings, timings);
+-}
+-
+-static int unicam_dv_timings_cap(struct file *file, void *priv,
+-				 struct v4l2_dv_timings_cap *cap)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-
+-	return v4l2_subdev_call(dev->sensor, pad, dv_timings_cap, cap);
+-}
+-
+-static int unicam_subscribe_event(struct v4l2_fh *fh,
+-				  const struct v4l2_event_subscription *sub)
+-{
+-	switch (sub->type) {
+-	case V4L2_EVENT_FRAME_SYNC:
+-		return v4l2_event_subscribe(fh, sub, 2, NULL);
+-	case V4L2_EVENT_SOURCE_CHANGE:
+-		return v4l2_event_subscribe(fh, sub, 4, NULL);
+-	}
+-
+-	return v4l2_ctrl_subscribe_event(fh, sub);
+-}
+-
+-static int unicam_log_status(struct file *file, void *fh)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct unicam_cfg *cfg = &dev->cfg;
+-	u32 reg;
+-
+-	/* status for sub devices */
+-	v4l2_device_call_all(&dev->v4l2_dev, 0, core, log_status);
+-
+-	unicam_info(dev, "-----Receiver status-----\n");
+-	unicam_info(dev, "V4L2 width/height:   %ux%u\n",
+-		    node->v_fmt.fmt.pix.width, node->v_fmt.fmt.pix.height);
+-	unicam_info(dev, "Mediabus format:     %08x\n", node->fmt->code);
+-	unicam_info(dev, "V4L2 format:         %08x\n",
+-		    node->v_fmt.fmt.pix.pixelformat);
+-	reg = reg_read(&dev->cfg, UNICAM_IPIPE);
+-	unicam_info(dev, "Unpacking/packing:   %u / %u\n",
+-		    get_field(reg, UNICAM_PUM_MASK),
+-		    get_field(reg, UNICAM_PPM_MASK));
+-	unicam_info(dev, "----Live data----\n");
+-	unicam_info(dev, "Programmed stride:   %4u\n",
+-		    reg_read(cfg, UNICAM_IBLS));
+-	unicam_info(dev, "Detected resolution: %ux%u\n",
+-		    reg_read(cfg, UNICAM_IHSTA),
+-		    reg_read(cfg, UNICAM_IVSTA));
+-	unicam_info(dev, "Write pointer:       %08x\n",
+-		    reg_read(cfg, UNICAM_IBWP));
+-
+-	return 0;
+-}
+-
+-static void unicam_notify(struct v4l2_subdev *sd,
+-			  unsigned int notification, void *arg)
+-{
+-	struct unicam_device *dev =
+-		container_of(sd->v4l2_dev, struct unicam_device, v4l2_dev);
+-
+-	switch (notification) {
+-	case V4L2_DEVICE_NOTIFY_EVENT:
+-		v4l2_event_queue(&dev->node[IMAGE_PAD].video_dev, arg);
+-		break;
+-	default:
+-		break;
+-	}
+-}
+-
+-static const struct vb2_ops unicam_video_qops = {
+-	.wait_prepare		= vb2_ops_wait_prepare,
+-	.wait_finish		= vb2_ops_wait_finish,
+-	.queue_setup		= unicam_queue_setup,
+-	.buf_prepare		= unicam_buffer_prepare,
+-	.buf_queue		= unicam_buffer_queue,
+-	.start_streaming	= unicam_start_streaming,
+-	.stop_streaming		= unicam_stop_streaming,
+-};
+-
+-/*
+- * unicam_open : This function is based on the v4l2_fh_open helper function.
+- * It has been augmented to handle sensor subdevice power management,
+- */
+-static int unicam_open(struct file *file)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	int ret;
+-
+-	mutex_lock(&node->lock);
+-
+-	ret = v4l2_fh_open(file);
+-	if (ret) {
+-		unicam_err(dev, "v4l2_fh_open failed\n");
+-		goto unlock;
+-	}
+-
+-	node->open++;
+-
+-	if (!v4l2_fh_is_singular_file(file))
+-		goto unlock;
+-
+-	ret = v4l2_subdev_call(dev->sensor, core, s_power, 1);
+-	if (ret < 0 && ret != -ENOIOCTLCMD) {
+-		v4l2_fh_release(file);
+-		node->open--;
+-		goto unlock;
+-	}
+-
+-	ret = 0;
+-
+-unlock:
+-	mutex_unlock(&node->lock);
+-	return ret;
+-}
+-
+-static int unicam_release(struct file *file)
+-{
+-	struct unicam_node *node = video_drvdata(file);
+-	struct unicam_device *dev = node->dev;
+-	struct v4l2_subdev *sd = dev->sensor;
+-	bool fh_singular;
+-	int ret;
+-
+-	mutex_lock(&node->lock);
+-
+-	fh_singular = v4l2_fh_is_singular_file(file);
+-
+-	ret = _vb2_fop_release(file, NULL);
+-
+-	if (fh_singular)
+-		v4l2_subdev_call(sd, core, s_power, 0);
+-
+-	node->open--;
+-	mutex_unlock(&node->lock);
+-
+-	return ret;
+-}
+-
+-/* unicam capture driver file operations */
+-static const struct v4l2_file_operations unicam_fops = {
+-	.owner		= THIS_MODULE,
+-	.open           = unicam_open,
+-	.release        = unicam_release,
+-	.read		= vb2_fop_read,
+-	.poll		= vb2_fop_poll,
+-	.unlocked_ioctl	= video_ioctl2,
+-	.mmap		= vb2_fop_mmap,
+-};
+-
+-/* unicam capture ioctl operations */
+-static const struct v4l2_ioctl_ops unicam_ioctl_ops = {
+-	.vidioc_querycap		= unicam_querycap,
+-	.vidioc_enum_fmt_vid_cap	= unicam_enum_fmt_vid_cap,
+-	.vidioc_g_fmt_vid_cap		= unicam_g_fmt_vid_cap,
+-	.vidioc_s_fmt_vid_cap		= unicam_s_fmt_vid_cap,
+-	.vidioc_try_fmt_vid_cap		= unicam_try_fmt_vid_cap,
+-
+-	.vidioc_enum_fmt_meta_cap	= unicam_enum_fmt_meta_cap,
+-	.vidioc_g_fmt_meta_cap		= unicam_g_fmt_meta_cap,
+-	.vidioc_s_fmt_meta_cap		= unicam_s_fmt_meta_cap,
+-	.vidioc_try_fmt_meta_cap	= unicam_try_fmt_meta_cap,
+-
+-	.vidioc_enum_input		= unicam_enum_input,
+-	.vidioc_g_input			= unicam_g_input,
+-	.vidioc_s_input			= unicam_s_input,
+-
+-	.vidioc_querystd		= unicam_querystd,
+-	.vidioc_s_std			= unicam_s_std,
+-	.vidioc_g_std			= unicam_g_std,
+-
+-	.vidioc_g_edid			= unicam_g_edid,
+-	.vidioc_s_edid			= unicam_s_edid,
+-
+-	.vidioc_enum_framesizes		= unicam_enum_framesizes,
+-	.vidioc_enum_frameintervals	= unicam_enum_frameintervals,
+-
+-	.vidioc_g_selection		= unicam_g_selection,
+-	.vidioc_s_selection		= unicam_s_selection,
+-
+-	.vidioc_g_parm			= unicam_g_parm,
+-	.vidioc_s_parm			= unicam_s_parm,
+-
+-	.vidioc_s_dv_timings		= unicam_s_dv_timings,
+-	.vidioc_g_dv_timings		= unicam_g_dv_timings,
+-	.vidioc_query_dv_timings	= unicam_query_dv_timings,
+-	.vidioc_enum_dv_timings		= unicam_enum_dv_timings,
+-	.vidioc_dv_timings_cap		= unicam_dv_timings_cap,
+-
+-	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
+-	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
+-	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
+-	.vidioc_querybuf		= vb2_ioctl_querybuf,
+-	.vidioc_qbuf			= vb2_ioctl_qbuf,
+-	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
+-	.vidioc_expbuf			= vb2_ioctl_expbuf,
+-	.vidioc_streamon		= vb2_ioctl_streamon,
+-	.vidioc_streamoff		= vb2_ioctl_streamoff,
+-
+-	.vidioc_log_status		= unicam_log_status,
+-	.vidioc_subscribe_event		= unicam_subscribe_event,
+-	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
+-};
+-
+-static int
+-unicam_async_bound(struct v4l2_async_notifier *notifier,
+-		   struct v4l2_subdev *subdev,
+-		   struct v4l2_async_subdev *asd)
+-{
+-	struct unicam_device *unicam = container_of(notifier->v4l2_dev,
+-					       struct unicam_device, v4l2_dev);
+-
+-	if (unicam->sensor) {
+-		unicam_info(unicam, "Rejecting subdev %s (Already set!!)",
+-			    subdev->name);
+-		return 0;
+-	}
+-
+-	unicam->sensor = subdev;
+-	unicam_dbg(1, unicam, "Using sensor %s for capture\n", subdev->name);
+-
+-	return 0;
+-}
+-
+-static int register_node(struct unicam_device *unicam, struct unicam_node *node,
+-			 enum v4l2_buf_type type, int pad_id)
+-{
+-	struct video_device *vdev;
+-	struct vb2_queue *q;
+-	struct v4l2_mbus_framefmt mbus_fmt = {0};
+-	const struct unicam_fmt *fmt;
+-	int ret;
+-
+-	if (unicam->sensor_embedded_data || pad_id != METADATA_PAD) {
+-		ret = __subdev_get_format(unicam, &mbus_fmt, pad_id);
+-		if (ret) {
+-			unicam_err(unicam, "Failed to get_format - ret %d\n",
+-				   ret);
+-			return ret;
+-		}
+-
+-		fmt = find_format_by_code(mbus_fmt.code);
+-		if (!fmt) {
+-			/* Find the first format that the sensor and unicam both
+-			 * support
+-			 */
+-			fmt = get_first_supported_format(unicam);
+-
+-			if (!fmt)
+-				/* No compatible formats */
+-				return -EINVAL;
+-
+-			mbus_fmt.code = fmt->code;
+-			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
+-			if (ret)
+-				return -EINVAL;
+-		}
+-		if (mbus_fmt.field != V4L2_FIELD_NONE) {
+-			/* Interlaced not supported - disable it now. */
+-			mbus_fmt.field = V4L2_FIELD_NONE;
+-			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
+-			if (ret)
+-				return -EINVAL;
+-		}
+-	} else {
+-		/* Fix this node format as embedded data. */
+-		fmt = find_format_by_code(MEDIA_BUS_FMT_SENSOR_DATA);
+-	}
+-
+-	node->dev = unicam;
+-	node->pad_id = pad_id;
+-	node->fmt = fmt;
+-	if (fmt->fourcc) {
+-		if (fmt->fourcc != V4L2_META_FMT_SENSOR_DATA)
+-			node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
+-		else
+-			node->v_fmt.fmt.meta.dataformat = fmt->fourcc;
+-	} else {
+-		node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
+-	}
+-
+-	/* Read current subdev format */
+-	unicam_reset_format(node);
+-
+-	if (v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+-		v4l2_std_id tvnorms;
+-
+-		if (WARN_ON(!v4l2_subdev_has_op(unicam->sensor, video,
+-						g_tvnorms)))
+-			/*
+-			 * Subdevice should not advertise s_std but not
+-			 * g_tvnorms
+-			 */
+-			return -EINVAL;
+-
+-		ret = v4l2_subdev_call(unicam->sensor, video,
+-				       g_tvnorms, &tvnorms);
+-		if (WARN_ON(ret))
+-			return -EINVAL;
+-		node->video_dev.tvnorms |= tvnorms;
+-	}
+-
+-	spin_lock_init(&node->dma_queue_lock);
+-	mutex_init(&node->lock);
+-
+-	vdev = &node->video_dev;
+-	if (pad_id == IMAGE_PAD) {
+-		/* Add controls from the subdevice */
+-		ret = v4l2_ctrl_add_handler(&node->ctrl_handler,
+-					    unicam->sensor->ctrl_handler, NULL,
+-					    true);
+-		if (ret < 0)
+-			return ret;
+-
+-		/*
+-		 * If the sensor subdevice has any controls, associate the node
+-		 *  with the ctrl handler to allow access from userland.
+-		 */
+-		if (!list_empty(&node->ctrl_handler.ctrls))
+-			vdev->ctrl_handler = &node->ctrl_handler;
+-	}
+-
+-	q = &node->buffer_queue;
+-	q->type = type;
+-	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
+-	q->drv_priv = node;
+-	q->ops = &unicam_video_qops;
+-	q->mem_ops = &vb2_dma_contig_memops;
+-	q->buf_struct_size = sizeof(struct unicam_buffer);
+-	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+-	q->lock = &node->lock;
+-	q->min_buffers_needed = 1;
+-	q->dev = &unicam->pdev->dev;
+-
+-	ret = vb2_queue_init(q);
+-	if (ret) {
+-		unicam_err(unicam, "vb2_queue_init() failed\n");
+-		return ret;
+-	}
+-
+-	INIT_LIST_HEAD(&node->dma_queue.active);
+-
+-	vdev->release = video_device_release_empty;
+-	vdev->fops = &unicam_fops;
+-	vdev->ioctl_ops = &unicam_ioctl_ops;
+-	vdev->v4l2_dev = &unicam->v4l2_dev;
+-	vdev->vfl_dir = VFL_DIR_RX;
+-	vdev->queue = q;
+-	vdev->lock = &node->lock;
+-	vdev->device_caps = (pad_id == IMAGE_PAD) ?
+-			    (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING) :
+-			    (V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING);
+-
+-	/* Define the device names */
+-	snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME,
+-		 node->pad_id == IMAGE_PAD ? "image" : "embedded");
+-
+-	video_set_drvdata(vdev, node);
+-	vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
+-
+-	node->dummy_buf_cpu_addr = dma_alloc_coherent(&unicam->pdev->dev,
+-						      DUMMY_BUF_SIZE,
+-						      &node->dummy_buf_dma_addr,
+-						      GFP_ATOMIC);
+-	if (!node->dummy_buf_cpu_addr) {
+-		unicam_err(unicam, "Unable to allocate dummy buffer.\n");
+-		return -ENOMEM;
+-	}
+-
+-	if (node->pad_id == METADATA_PAD) {
+-		v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
+-		v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
+-		v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
+-	}
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_STD);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUMSTD);
+-	}
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, video, querystd))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERYSTD);
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_EDID);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_EDID);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_DV_TIMINGS_CAP);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_DV_TIMINGS);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_DV_TIMINGS);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_DV_TIMINGS);
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERY_DV_TIMINGS);
+-	}
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
+-		v4l2_disable_ioctl(&node->video_dev,
+-				   VIDIOC_ENUM_FRAMEINTERVALS);
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_PARM);
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_PARM);
+-
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES);
+-
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, pad, set_selection))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_SELECTION);
+-
+-	if (node->pad_id == METADATA_PAD ||
+-	    !v4l2_subdev_has_op(unicam->sensor, pad, get_selection))
+-		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_SELECTION);
+-
+-	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+-	if (ret) {
+-		unicam_err(unicam, "Unable to register video device.\n");
+-		return ret;
+-	}
+-	node->registered = 1;
+-
+-	if (unicam->sensor_embedded_data) {
+-		ret = media_create_pad_link(&unicam->sensor->entity, pad_id,
+-					    &node->video_dev.entity, 0,
+-					    MEDIA_LNK_FL_ENABLED |
+-					    MEDIA_LNK_FL_IMMUTABLE);
+-		if (ret)
+-			unicam_err(unicam, "Unable to create pad links.\n");
+-	}
+-
+-	return ret;
+-}
+-
+-static void unregister_nodes(struct unicam_device *unicam)
+-{
+-	struct unicam_node *node;
+-	int i;
+-
+-	for (i = 0; i < MAX_NODES; i++) {
+-		node = &unicam->node[i];
+-		if (node->dummy_buf_cpu_addr) {
+-			dma_free_coherent(&unicam->pdev->dev, DUMMY_BUF_SIZE,
+-					  node->dummy_buf_cpu_addr,
+-					  node->dummy_buf_dma_addr);
+-		}
+-		if (node->registered) {
+-			video_unregister_device(&node->video_dev);
+-			node->registered = 0;
+-		}
+-	}
+-}
+-
+-static int unicam_probe_complete(struct unicam_device *unicam)
+-{
+-	int ret;
+-
+-	v4l2_set_subdev_hostdata(unicam->sensor, unicam);
+-
+-	unicam->v4l2_dev.notify = unicam_notify;
+-
+-	unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
+-	if (!unicam->sensor_config)
+-		return -ENOMEM;
+-
+-	unicam->sensor_embedded_data = (unicam->sensor->entity.num_pads >= 2);
+-
+-	ret = register_node(unicam, &unicam->node[IMAGE_PAD],
+-			    V4L2_BUF_TYPE_VIDEO_CAPTURE, IMAGE_PAD);
+-	if (ret) {
+-		unicam_err(unicam, "Unable to register subdev node 0.\n");
+-		goto unregister;
+-	}
+-
+-	ret = register_node(unicam, &unicam->node[METADATA_PAD],
+-			    V4L2_BUF_TYPE_META_CAPTURE, METADATA_PAD);
+-	if (ret) {
+-		unicam_err(unicam, "Unable to register subdev node 1.\n");
+-		goto unregister;
+-	}
+-
+-	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
+-	if (ret) {
+-		unicam_err(unicam, "Unable to register subdev nodes.\n");
+-		goto unregister;
+-	}
+-
+-	return 0;
+-
+-unregister:
+-	unregister_nodes(unicam);
+-
+-	return ret;
+-}
+-
+-static int unicam_async_complete(struct v4l2_async_notifier *notifier)
+-{
+-	struct unicam_device *unicam = container_of(notifier->v4l2_dev,
+-					struct unicam_device, v4l2_dev);
+-
+-	return unicam_probe_complete(unicam);
+-}
+-
+-static const struct v4l2_async_notifier_operations unicam_async_ops = {
+-	.bound = unicam_async_bound,
+-	.complete = unicam_async_complete,
+-};
+-
+-static int of_unicam_connect_subdevs(struct unicam_device *dev)
+-{
+-	struct platform_device *pdev = dev->pdev;
+-	struct device_node *parent, *ep_node = NULL, *remote_ep = NULL,
+-			*sensor_node = NULL;
+-	struct v4l2_fwnode_endpoint *ep;
+-	struct v4l2_async_subdev *asd;
+-	unsigned int peripheral_data_lanes;
+-	int ret = -EINVAL;
+-	unsigned int lane;
+-
+-	parent = pdev->dev.of_node;
+-
+-	asd = &dev->asd;
+-	ep = &dev->endpoint;
+-
+-	ep_node = of_graph_get_next_endpoint(parent, NULL);
+-	if (!ep_node) {
+-		unicam_dbg(3, dev, "can't get next endpoint\n");
+-		goto cleanup_exit;
+-	}
+-
+-	unicam_dbg(3, dev, "ep_node is %s\n", ep_node->name);
+-
+-	v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), ep);
+-
+-	for (lane = 0; lane < ep->bus.mipi_csi2.num_data_lanes; lane++) {
+-		if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) {
+-			unicam_err(dev, "Local endpoint - data lane reordering not supported\n");
+-			goto cleanup_exit;
+-		}
+-	}
+-
+-	peripheral_data_lanes = ep->bus.mipi_csi2.num_data_lanes;
+-
+-	sensor_node = of_graph_get_remote_port_parent(ep_node);
+-	if (!sensor_node) {
+-		unicam_dbg(3, dev, "can't get remote parent\n");
+-		goto cleanup_exit;
+-	}
+-	unicam_dbg(3, dev, "sensor_node is %s\n", sensor_node->name);
+-	asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
+-	asd->match.fwnode = of_fwnode_handle(sensor_node);
+-
+-	remote_ep = of_graph_get_remote_endpoint(ep_node);
+-	if (!remote_ep) {
+-		unicam_dbg(3, dev, "can't get remote-endpoint\n");
+-		goto cleanup_exit;
+-	}
+-	unicam_dbg(3, dev, "remote_ep is %s\n", remote_ep->name);
+-	v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), ep);
+-	unicam_dbg(3, dev, "parsed remote_ep to endpoint. nr_of_link_frequencies %u, bus_type %u\n",
+-		   ep->nr_of_link_frequencies, ep->bus_type);
+-
+-	switch (ep->bus_type) {
+-	case V4L2_MBUS_CSI2_DPHY:
+-		if (ep->bus.mipi_csi2.num_data_lanes >
+-				peripheral_data_lanes) {
+-			unicam_err(dev, "Subdevice %s wants too many data lanes (%u > %u)\n",
+-				   sensor_node->name,
+-				   ep->bus.mipi_csi2.num_data_lanes,
+-				   peripheral_data_lanes);
+-			goto cleanup_exit;
+-		}
+-		for (lane = 0;
+-		     lane < ep->bus.mipi_csi2.num_data_lanes;
+-		     lane++) {
+-			if (ep->bus.mipi_csi2.data_lanes[lane] != lane + 1) {
+-				unicam_err(dev, "Subdevice %s - incompatible data lane config\n",
+-					   sensor_node->name);
+-				goto cleanup_exit;
+-			}
+-		}
+-		dev->max_data_lanes = ep->bus.mipi_csi2.num_data_lanes;
+-		dev->bus_flags = ep->bus.mipi_csi2.flags;
+-		break;
+-	case V4L2_MBUS_CCP2:
+-		if (ep->bus.mipi_csi1.clock_lane != 0 ||
+-		    ep->bus.mipi_csi1.data_lane != 1) {
+-			unicam_err(dev, "Subdevice %s incompatible lane config\n",
+-				   sensor_node->name);
+-			goto cleanup_exit;
+-		}
+-		dev->max_data_lanes = 1;
+-		dev->bus_flags = ep->bus.mipi_csi1.strobe;
+-		break;
+-	default:
+-		/* Unsupported bus type */
+-		unicam_err(dev, "sub-device %s is not a CSI2 or CCP2 device %d\n",
+-			   sensor_node->name, ep->bus_type);
+-		goto cleanup_exit;
+-	}
+-
+-	/* Store bus type - CSI2 or CCP2 */
+-	dev->bus_type = ep->bus_type;
+-	unicam_dbg(3, dev, "bus_type is %d\n", dev->bus_type);
+-
+-	/* Store Virtual Channel number */
+-	dev->virtual_channel = ep->base.id;
+-
+-	unicam_dbg(3, dev, "v4l2-endpoint: %s\n",
+-		   dev->bus_type == V4L2_MBUS_CSI2_DPHY ? "CSI2" : "CCP2");
+-	unicam_dbg(3, dev, "Virtual Channel=%d\n", dev->virtual_channel);
+-	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY)
+-		unicam_dbg(3, dev, "flags=0x%08x\n", ep->bus.mipi_csi2.flags);
+-	unicam_dbg(3, dev, "num_data_lanes=%d\n", dev->max_data_lanes);
+-
+-	unicam_dbg(1, dev, "found sub-device %s\n", sensor_node->name);
+-
+-	v4l2_async_notifier_init(&dev->notifier);
+-
+-	ret = v4l2_async_notifier_add_subdev(&dev->notifier, asd);
+-	if (ret) {
+-		unicam_err(dev, "Error adding subdevice - ret %d\n", ret);
+-		goto cleanup_exit;
+-	}
+-
+-	dev->notifier.ops = &unicam_async_ops;
+-	ret = v4l2_async_notifier_register(&dev->v4l2_dev,
+-					   &dev->notifier);
+-	if (ret) {
+-		unicam_err(dev, "Error registering async notifier - ret %d\n",
+-			   ret);
+-		ret = -EINVAL;
+-	}
+-
+-cleanup_exit:
+-	if (remote_ep)
+-		of_node_put(remote_ep);
+-	if (sensor_node)
+-		of_node_put(sensor_node);
+-	if (ep_node)
+-		of_node_put(ep_node);
+-
+-	return ret;
+-}
+-
+-static int unicam_probe(struct platform_device *pdev)
+-{
+-	struct unicam_cfg *unicam_cfg;
+-	struct unicam_device *unicam;
+-	struct v4l2_ctrl_handler *hdl;
+-	struct resource	*res;
+-	int ret;
+-
+-	unicam = devm_kzalloc(&pdev->dev, sizeof(*unicam), GFP_KERNEL);
+-	if (!unicam)
+-		return -ENOMEM;
+-
+-	unicam->pdev = pdev;
+-	unicam_cfg = &unicam->cfg;
+-
+-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+-	unicam_cfg->base = devm_ioremap_resource(&pdev->dev, res);
+-	if (IS_ERR(unicam_cfg->base)) {
+-		unicam_err(unicam, "Failed to get main io block\n");
+-		return PTR_ERR(unicam_cfg->base);
+-	}
+-
+-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+-	unicam_cfg->clk_gate_base = devm_ioremap_resource(&pdev->dev, res);
+-	if (IS_ERR(unicam_cfg->clk_gate_base)) {
+-		unicam_err(unicam, "Failed to get 2nd io block\n");
+-		return PTR_ERR(unicam_cfg->clk_gate_base);
+-	}
+-
+-	unicam->clock = devm_clk_get(&pdev->dev, "lp");
+-	if (IS_ERR(unicam->clock)) {
+-		unicam_err(unicam, "Failed to get clock\n");
+-		return PTR_ERR(unicam->clock);
+-	}
+-
+-	ret = platform_get_irq(pdev, 0);
+-	if (ret <= 0) {
+-		dev_err(&pdev->dev, "No IRQ resource\n");
+-		return -ENODEV;
+-	}
+-
+-	ret = devm_request_irq(&pdev->dev, ret, unicam_isr, 0,
+-			       "unicam_capture0", unicam);
+-	if (ret) {
+-		dev_err(&pdev->dev, "Unable to request interrupt\n");
+-		return -EINVAL;
+-	}
+-
+-	unicam->mdev.dev = &pdev->dev;
+-	strscpy(unicam->mdev.model, UNICAM_MODULE_NAME,
+-		sizeof(unicam->mdev.model));
+-	strscpy(unicam->mdev.serial, "", sizeof(unicam->mdev.serial));
+-	snprintf(unicam->mdev.bus_info, sizeof(unicam->mdev.bus_info),
+-		 "platform:%s %s",
+-		 pdev->dev.driver->name, dev_name(&pdev->dev));
+-	unicam->mdev.hw_revision = 1;
+-
+-	media_entity_pads_init(&unicam->node[IMAGE_PAD].video_dev.entity, 1,
+-			       &unicam->node[IMAGE_PAD].pad);
+-	media_entity_pads_init(&unicam->node[METADATA_PAD].video_dev.entity, 1,
+-			       &unicam->node[METADATA_PAD].pad);
+-	media_device_init(&unicam->mdev);
+-
+-	unicam->v4l2_dev.mdev = &unicam->mdev;
+-
+-	ret = v4l2_device_register(&pdev->dev, &unicam->v4l2_dev);
+-	if (ret) {
+-		unicam_err(unicam,
+-			   "Unable to register v4l2 device.\n");
+-		goto media_cleanup;
+-	}
+-
+-	ret = media_device_register(&unicam->mdev);
+-	if (ret < 0) {
+-		unicam_err(unicam,
+-			   "Unable to register media-controller device.\n");
+-		goto probe_out_v4l2_unregister;
+-	}
+-
+-	/* Reserve space for the controls */
+-	hdl = &unicam->node[IMAGE_PAD].ctrl_handler;
+-	ret = v4l2_ctrl_handler_init(hdl, 16);
+-	if (ret < 0)
+-		goto media_unregister;
+-
+-	/* set the driver data in platform device */
+-	platform_set_drvdata(pdev, unicam);
+-
+-	ret = of_unicam_connect_subdevs(unicam);
+-	if (ret) {
+-		dev_err(&pdev->dev, "Failed to connect subdevs\n");
+-		goto free_hdl;
+-	}
+-
+-	/* Enable the block power domain */
+-	pm_runtime_enable(&pdev->dev);
+-
+-	return 0;
+-
+-free_hdl:
+-	v4l2_ctrl_handler_free(hdl);
+-media_unregister:
+-	media_device_unregister(&unicam->mdev);
+-probe_out_v4l2_unregister:
+-	v4l2_device_unregister(&unicam->v4l2_dev);
+-media_cleanup:
+-	media_device_cleanup(&unicam->mdev);
+-
+-	return ret;
+-}
+-
+-static int unicam_remove(struct platform_device *pdev)
+-{
+-	struct unicam_device *unicam = platform_get_drvdata(pdev);
+-
+-	unicam_dbg(2, unicam, "%s\n", __func__);
+-
+-	pm_runtime_disable(&pdev->dev);
+-
+-	v4l2_async_notifier_unregister(&unicam->notifier);
+-	v4l2_ctrl_handler_free(&unicam->node[IMAGE_PAD].ctrl_handler);
+-	v4l2_device_unregister(&unicam->v4l2_dev);
+-	unregister_nodes(unicam);
+-	if (unicam->sensor_config)
+-		v4l2_subdev_free_pad_config(unicam->sensor_config);
+-	media_device_unregister(&unicam->mdev);
+-	media_device_cleanup(&unicam->mdev);
+-
+-	return 0;
+-}
+-
+-static const struct of_device_id unicam_of_match[] = {
+-	{ .compatible = "brcm,bcm2835-unicam", },
+-	{ /* sentinel */ },
+-};
+-MODULE_DEVICE_TABLE(of, unicam_of_match);
+-
+-static struct platform_driver unicam_driver = {
+-	.probe		= unicam_probe,
+-	.remove		= unicam_remove,
+-	.driver = {
+-		.name	= UNICAM_MODULE_NAME,
+-		.of_match_table = of_match_ptr(unicam_of_match),
+-	},
+-};
+-
+-module_platform_driver(unicam_driver);
+-
+-MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.com>");
+-MODULE_DESCRIPTION("BCM2835 Unicam driver");
+-MODULE_LICENSE("GPL");
+-MODULE_VERSION(UNICAM_VERSION);
+--- a/drivers/media/platform/bcm2835/vc4-regs-unicam.h
++++ /dev/null
+@@ -1,253 +0,0 @@
+-/* SPDX-License-Identifier: GPL-2.0-only */
+-
+-/*
+- * Copyright (C) 2017-2020 Raspberry Pi Trading.
+- * Dave Stevenson <dave.stevenson@raspberrypi.com>
+- */
+-
+-#ifndef VC4_REGS_UNICAM_H
+-#define VC4_REGS_UNICAM_H
+-
+-/*
+- * The following values are taken from files found within the code drop
+- * made by Broadcom for the BCM21553 Graphics Driver, predominantly in
+- * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h.
+- * They have been modified to be only the register offset.
+- */
+-#define UNICAM_CTRL	0x000
+-#define UNICAM_STA	0x004
+-#define UNICAM_ANA	0x008
+-#define UNICAM_PRI	0x00c
+-#define UNICAM_CLK	0x010
+-#define UNICAM_CLT	0x014
+-#define UNICAM_DAT0	0x018
+-#define UNICAM_DAT1	0x01c
+-#define UNICAM_DAT2	0x020
+-#define UNICAM_DAT3	0x024
+-#define UNICAM_DLT	0x028
+-#define UNICAM_CMP0	0x02c
+-#define UNICAM_CMP1	0x030
+-#define UNICAM_CAP0	0x034
+-#define UNICAM_CAP1	0x038
+-#define UNICAM_ICTL	0x100
+-#define UNICAM_ISTA	0x104
+-#define UNICAM_IDI0	0x108
+-#define UNICAM_IPIPE	0x10c
+-#define UNICAM_IBSA0	0x110
+-#define UNICAM_IBEA0	0x114
+-#define UNICAM_IBLS	0x118
+-#define UNICAM_IBWP	0x11c
+-#define UNICAM_IHWIN	0x120
+-#define UNICAM_IHSTA	0x124
+-#define UNICAM_IVWIN	0x128
+-#define UNICAM_IVSTA	0x12c
+-#define UNICAM_ICC	0x130
+-#define UNICAM_ICS	0x134
+-#define UNICAM_IDC	0x138
+-#define UNICAM_IDPO	0x13c
+-#define UNICAM_IDCA	0x140
+-#define UNICAM_IDCD	0x144
+-#define UNICAM_IDS	0x148
+-#define UNICAM_DCS	0x200
+-#define UNICAM_DBSA0	0x204
+-#define UNICAM_DBEA0	0x208
+-#define UNICAM_DBWP	0x20c
+-#define UNICAM_DBCTL	0x300
+-#define UNICAM_IBSA1	0x304
+-#define UNICAM_IBEA1	0x308
+-#define UNICAM_IDI1	0x30c
+-#define UNICAM_DBSA1	0x310
+-#define UNICAM_DBEA1	0x314
+-#define UNICAM_MISC	0x400
+-
+-/*
+- * The following bitmasks are from the kernel released by Broadcom
+- * for Android - https://android.googlesource.com/kernel/bcm/
+- * The Rhea, Hawaii, and Java chips all contain the same VideoCore4
+- * Unicam block as BCM2835, as defined in eg
+- * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar.
+- * Values reworked to use the kernel BIT and GENMASK macros.
+- *
+- * Some of the bit mnenomics have been amended to match the datasheet.
+- */
+-/* UNICAM_CTRL Register */
+-#define UNICAM_CPE		BIT(0)
+-#define UNICAM_MEM		BIT(1)
+-#define UNICAM_CPR		BIT(2)
+-#define UNICAM_CPM_MASK		GENMASK(3, 3)
+-#define UNICAM_CPM_CSI2		0
+-#define UNICAM_CPM_CCP2		1
+-#define UNICAM_SOE		BIT(4)
+-#define UNICAM_DCM_MASK		GENMASK(5, 5)
+-#define UNICAM_DCM_STROBE	0
+-#define UNICAM_DCM_DATA		1
+-#define UNICAM_SLS		BIT(6)
+-#define UNICAM_PFT_MASK		GENMASK(11, 8)
+-#define UNICAM_OET_MASK		GENMASK(20, 12)
+-
+-/* UNICAM_STA Register */
+-#define UNICAM_SYN		BIT(0)
+-#define UNICAM_CS		BIT(1)
+-#define UNICAM_SBE		BIT(2)
+-#define UNICAM_PBE		BIT(3)
+-#define UNICAM_HOE		BIT(4)
+-#define UNICAM_PLE		BIT(5)
+-#define UNICAM_SSC		BIT(6)
+-#define UNICAM_CRCE		BIT(7)
+-#define UNICAM_OES		BIT(8)
+-#define UNICAM_IFO		BIT(9)
+-#define UNICAM_OFO		BIT(10)
+-#define UNICAM_BFO		BIT(11)
+-#define UNICAM_DL		BIT(12)
+-#define UNICAM_PS		BIT(13)
+-#define UNICAM_IS		BIT(14)
+-#define UNICAM_PI0		BIT(15)
+-#define UNICAM_PI1		BIT(16)
+-#define UNICAM_FSI_S		BIT(17)
+-#define UNICAM_FEI_S		BIT(18)
+-#define UNICAM_LCI_S		BIT(19)
+-#define UNICAM_BUF0_RDY		BIT(20)
+-#define UNICAM_BUF0_NO		BIT(21)
+-#define UNICAM_BUF1_RDY		BIT(22)
+-#define UNICAM_BUF1_NO		BIT(23)
+-#define UNICAM_DI		BIT(24)
+-
+-#define UNICAM_STA_MASK_ALL \
+-		(UNICAM_DL + \
+-		UNICAM_SBE + \
+-		UNICAM_PBE + \
+-		UNICAM_HOE + \
+-		UNICAM_PLE + \
+-		UNICAM_SSC + \
+-		UNICAM_CRCE + \
+-		UNICAM_IFO + \
+-		UNICAM_OFO + \
+-		UNICAM_PS + \
+-		UNICAM_PI0 + \
+-		UNICAM_PI1)
+-
+-/* UNICAM_ANA Register */
+-#define UNICAM_APD		BIT(0)
+-#define UNICAM_BPD		BIT(1)
+-#define UNICAM_AR		BIT(2)
+-#define UNICAM_DDL		BIT(3)
+-#define UNICAM_CTATADJ_MASK	GENMASK(7, 4)
+-#define UNICAM_PTATADJ_MASK	GENMASK(11, 8)
+-
+-/* UNICAM_PRI Register */
+-#define UNICAM_PE		BIT(0)
+-#define UNICAM_PT_MASK		GENMASK(2, 1)
+-#define UNICAM_NP_MASK		GENMASK(7, 4)
+-#define UNICAM_PP_MASK		GENMASK(11, 8)
+-#define UNICAM_BS_MASK		GENMASK(15, 12)
+-#define UNICAM_BL_MASK		GENMASK(17, 16)
+-
+-/* UNICAM_CLK Register */
+-#define UNICAM_CLE		BIT(0)
+-#define UNICAM_CLPD		BIT(1)
+-#define UNICAM_CLLPE		BIT(2)
+-#define UNICAM_CLHSE		BIT(3)
+-#define UNICAM_CLTRE		BIT(4)
+-#define UNICAM_CLAC_MASK	GENMASK(8, 5)
+-#define UNICAM_CLSTE		BIT(29)
+-
+-/* UNICAM_CLT Register */
+-#define UNICAM_CLT1_MASK	GENMASK(7, 0)
+-#define UNICAM_CLT2_MASK	GENMASK(15, 8)
+-
+-/* UNICAM_DATn Registers */
+-#define UNICAM_DLE		BIT(0)
+-#define UNICAM_DLPD		BIT(1)
+-#define UNICAM_DLLPE		BIT(2)
+-#define UNICAM_DLHSE		BIT(3)
+-#define UNICAM_DLTRE		BIT(4)
+-#define UNICAM_DLSM		BIT(5)
+-#define UNICAM_DLFO		BIT(28)
+-#define UNICAM_DLSTE		BIT(29)
+-
+-#define UNICAM_DAT_MASK_ALL (UNICAM_DLSTE + UNICAM_DLFO)
+-
+-/* UNICAM_DLT Register */
+-#define UNICAM_DLT1_MASK	GENMASK(7, 0)
+-#define UNICAM_DLT2_MASK	GENMASK(15, 8)
+-#define UNICAM_DLT3_MASK	GENMASK(23, 16)
+-
+-/* UNICAM_ICTL Register */
+-#define UNICAM_FSIE		BIT(0)
+-#define UNICAM_FEIE		BIT(1)
+-#define UNICAM_IBOB		BIT(2)
+-#define UNICAM_FCM		BIT(3)
+-#define UNICAM_TFC		BIT(4)
+-#define UNICAM_LIP_MASK		GENMASK(6, 5)
+-#define UNICAM_LCIE_MASK	GENMASK(28, 16)
+-
+-/* UNICAM_IDI0/1 Register */
+-#define UNICAM_ID0_MASK		GENMASK(7, 0)
+-#define UNICAM_ID1_MASK		GENMASK(15, 8)
+-#define UNICAM_ID2_MASK		GENMASK(23, 16)
+-#define UNICAM_ID3_MASK		GENMASK(31, 24)
+-
+-/* UNICAM_ISTA Register */
+-#define UNICAM_FSI		BIT(0)
+-#define UNICAM_FEI		BIT(1)
+-#define UNICAM_LCI		BIT(2)
+-
+-#define UNICAM_ISTA_MASK_ALL (UNICAM_FSI + UNICAM_FEI + UNICAM_LCI)
+-
+-/* UNICAM_IPIPE Register */
+-#define UNICAM_PUM_MASK		GENMASK(2, 0)
+-		/* Unpacking modes */
+-		#define UNICAM_PUM_NONE		0
+-		#define UNICAM_PUM_UNPACK6	1
+-		#define UNICAM_PUM_UNPACK7	2
+-		#define UNICAM_PUM_UNPACK8	3
+-		#define UNICAM_PUM_UNPACK10	4
+-		#define UNICAM_PUM_UNPACK12	5
+-		#define UNICAM_PUM_UNPACK14	6
+-		#define UNICAM_PUM_UNPACK16	7
+-#define UNICAM_DDM_MASK		GENMASK(6, 3)
+-#define UNICAM_PPM_MASK		GENMASK(9, 7)
+-		/* Packing modes */
+-		#define UNICAM_PPM_NONE		0
+-		#define UNICAM_PPM_PACK8	1
+-		#define UNICAM_PPM_PACK10	2
+-		#define UNICAM_PPM_PACK12	3
+-		#define UNICAM_PPM_PACK14	4
+-		#define UNICAM_PPM_PACK16	5
+-#define UNICAM_DEM_MASK		GENMASK(11, 10)
+-#define UNICAM_DEBL_MASK	GENMASK(14, 12)
+-#define UNICAM_ICM_MASK		GENMASK(16, 15)
+-#define UNICAM_IDM_MASK		GENMASK(17, 17)
+-
+-/* UNICAM_ICC Register */
+-#define UNICAM_ICFL_MASK	GENMASK(4, 0)
+-#define UNICAM_ICFH_MASK	GENMASK(9, 5)
+-#define UNICAM_ICST_MASK	GENMASK(12, 10)
+-#define UNICAM_ICLT_MASK	GENMASK(15, 13)
+-#define UNICAM_ICLL_MASK	GENMASK(31, 16)
+-
+-/* UNICAM_DCS Register */
+-#define UNICAM_DIE		BIT(0)
+-#define UNICAM_DIM		BIT(1)
+-#define UNICAM_DBOB		BIT(3)
+-#define UNICAM_FDE		BIT(4)
+-#define UNICAM_LDP		BIT(5)
+-#define UNICAM_EDL_MASK		GENMASK(15, 8)
+-
+-/* UNICAM_DBCTL Register */
+-#define UNICAM_DBEN		BIT(0)
+-#define UNICAM_BUF0_IE		BIT(1)
+-#define UNICAM_BUF1_IE		BIT(2)
+-
+-/* UNICAM_CMP[0,1] register */
+-#define UNICAM_PCE		BIT(31)
+-#define UNICAM_GI		BIT(9)
+-#define UNICAM_CPH		BIT(8)
+-#define UNICAM_PCVC_MASK	GENMASK(7, 6)
+-#define UNICAM_PCDT_MASK	GENMASK(5, 0)
+-
+-/* UNICAM_MISC register */
+-#define UNICAM_FL0		BIT(6)
+-#define UNICAM_FL1		BIT(9)
+-
+-#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0264-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch b/target/linux/bcm27xx/patches-5.10/950-0264-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch
new file mode 100644
index 0000000000..67e4cdadae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0264-media-bcm2835-unicam-Driver-for-CCP2-CSI2-camera-int.patch
@@ -0,0 +1,3150 @@
+From ad386ab52fe80a35042a1a0d0eef0c87d2419dfc Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Mon, 4 May 2020 12:25:41 +0300
+Subject: [PATCH] media: bcm2835-unicam: Driver for CCP2/CSI2 camera
+ interface
+
+Add a driver for the Unicam camera receiver block on BCM283x processors.
+Compared to the bcm2835-camera driver present in staging, this driver
+handles the Unicam block only (CSI-2 receiver), and doesn't depend on
+the VC4 firmware running on the VPU.
+
+The commit is made up of a series of changes cherry-picked from the
+rpi-5.4.y branch of https://github.com/raspberrypi/linux/ with
+additional enhancements, forward-ported to the mainline kernel.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Reported-by: kbuild test robot <lkp@intel.com>
+---
+ MAINTAINERS                                   |    2 +-
+ drivers/media/platform/bcm2835/Kconfig        |   15 +
+ drivers/media/platform/bcm2835/Makefile       |    3 +
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 2825 +++++++++++++++++
+ .../media/platform/bcm2835/vc4-regs-unicam.h  |  253 ++
+ 5 files changed, 3097 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/media/platform/bcm2835/Kconfig
+ create mode 100644 drivers/media/platform/bcm2835/Makefile
+ create mode 100644 drivers/media/platform/bcm2835/bcm2835-unicam.c
+ create mode 100644 drivers/media/platform/bcm2835/vc4-regs-unicam.h
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3429,7 +3429,7 @@ M:	Raspberry Pi Kernel Maintenance <kern
+ L:	linux-media@vger.kernel.org
+ S:	Maintained
+ F:	drivers/media/platform/bcm2835/
+-F:	Documentation/devicetree/bindings/media/bcm2835-unicam.txt
++F:	Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml
+ 
+ BROADCOM BCM47XX MIPS ARCHITECTURE
+ M:	Hauke Mehrtens <hauke@hauke-m.de>
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/Kconfig
+@@ -0,0 +1,15 @@
++# Broadcom VideoCore4 V4L2 camera support
++
++config VIDEO_BCM2835_UNICAM
++	tristate "Broadcom BCM2835 Unicam video capture driver"
++	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER
++	depends on ARCH_BCM2835 || COMPILE_TEST
++	select VIDEOBUF2_DMA_CONTIG
++	select V4L2_FWNODE
++	help
++	  Say Y here to enable support for the BCM2835 CSI-2 receiver. This is a
++	  V4L2 driver that controls the CSI-2 receiver directly, independently
++	  from the VC4 firmware.
++
++	  To compile this driver as a module, choose M here. The module will be
++	  called bcm2835-unicam.
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/Makefile
+@@ -0,0 +1,3 @@
++# Makefile for BCM2835 Unicam driver
++
++obj-$(CONFIG_VIDEO_BCM2835_UNICAM) += bcm2835-unicam.o
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -0,0 +1,2825 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * BCM2835 Unicam Capture Driver
++ *
++ * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd.
++ *
++ * Dave Stevenson <dave.stevenson@raspberrypi.com>
++ *
++ * Based on TI am437x driver by
++ *   Benoit Parrot <bparrot@ti.com>
++ *   Lad, Prabhakar <prabhakar.csengg@gmail.com>
++ *
++ * and TI CAL camera interface driver by
++ *    Benoit Parrot <bparrot@ti.com>
++ *
++ *
++ * There are two camera drivers in the kernel for BCM283x - this one
++ * and bcm2835-camera (currently in staging).
++ *
++ * This driver directly controls the Unicam peripheral - there is no
++ * involvement with the VideoCore firmware. Unicam receives CSI-2 or
++ * CCP2 data and writes it into SDRAM.
++ * The only potential processing options are to repack Bayer data into an
++ * alternate format, and applying windowing.
++ * The repacking does not shift the data, so can repack V4L2_PIX_FMT_Sxxxx10P
++ * to V4L2_PIX_FMT_Sxxxx10, or V4L2_PIX_FMT_Sxxxx12P to V4L2_PIX_FMT_Sxxxx12,
++ * but not generically up to V4L2_PIX_FMT_Sxxxx16. The driver will add both
++ * formats where the relevant formats are defined, and will automatically
++ * configure the repacking as required.
++ * Support for windowing may be added later.
++ *
++ * It should be possible to connect this driver to any sensor with a
++ * suitable output interface and V4L2 subdevice driver.
++ *
++ * bcm2835-camera uses the VideoCore firmware to control the sensor,
++ * Unicam, ISP, and all tuner control loops. Fully processed frames are
++ * delivered to the driver by the firmware. It only has sensor drivers
++ * for Omnivision OV5647, and Sony IMX219 sensors.
++ *
++ * The two drivers are mutually exclusive for the same Unicam instance.
++ * The VideoCore firmware checks the device tree configuration during boot.
++ * If it finds device tree nodes called csi0 or csi1 it will block the
++ * firmware from accessing the peripheral, and bcm2835-camera will
++ * not be able to stream data.
++ */
++
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/device.h>
++#include <linux/dma-mapping.h>
++#include <linux/err.h>
++#include <linux/init.h>
++#include <linux/interrupt.h>
++#include <linux/io.h>
++#include <linux/module.h>
++#include <linux/of_device.h>
++#include <linux/of_graph.h>
++#include <linux/pinctrl/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/pm_runtime.h>
++#include <linux/slab.h>
++#include <linux/uaccess.h>
++#include <linux/videodev2.h>
++
++#include <media/v4l2-common.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-dev.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-dv-timings.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-fwnode.h>
++#include <media/videobuf2-dma-contig.h>
++
++#include "vc4-regs-unicam.h"
++
++#define UNICAM_MODULE_NAME	"unicam"
++#define UNICAM_VERSION		"0.1.0"
++
++static int debug;
++module_param(debug, int, 0644);
++MODULE_PARM_DESC(debug, "Debug level 0-3");
++
++#define unicam_dbg(level, dev, fmt, arg...)	\
++		v4l2_dbg(level, debug, &(dev)->v4l2_dev, fmt, ##arg)
++#define unicam_info(dev, fmt, arg...)	\
++		v4l2_info(&(dev)->v4l2_dev, fmt, ##arg)
++#define unicam_err(dev, fmt, arg...)	\
++		v4l2_err(&(dev)->v4l2_dev, fmt, ##arg)
++
++/*
++ * To protect against a dodgy sensor driver never returning an error from
++ * enum_mbus_code, set a maximum index value to be used.
++ */
++#define MAX_ENUM_MBUS_CODE	128
++
++/*
++ * Stride is a 16 bit register, but also has to be a multiple of 32.
++ */
++#define BPL_ALIGNMENT		32
++#define MAX_BYTESPERLINE	((1 << 16) - BPL_ALIGNMENT)
++/*
++ * Max width is therefore determined by the max stride divided by
++ * the number of bits per pixel. Take 32bpp as a
++ * worst case.
++ * No imposed limit on the height, so adopt a square image for want
++ * of anything better.
++ */
++#define MAX_WIDTH		(MAX_BYTESPERLINE / 4)
++#define MAX_HEIGHT		MAX_WIDTH
++/* Define a nominal minimum image size */
++#define MIN_WIDTH		16
++#define MIN_HEIGHT		16
++/* Default size of the embedded buffer */
++#define UNICAM_EMBEDDED_SIZE	8192
++
++/*
++ * Size of the dummy buffer. Can be any size really, but the DMA
++ * allocation works in units of page sizes.
++ */
++#define DUMMY_BUF_SIZE		(PAGE_SIZE)
++
++enum pad_types {
++	IMAGE_PAD,
++	METADATA_PAD,
++	MAX_NODES
++};
++
++/*
++ * struct unicam_fmt - Unicam media bus format information
++ * @pixelformat: V4L2 pixel format FCC identifier. 0 if n/a.
++ * @repacked_fourcc: V4L2 pixel format FCC identifier if the data is expanded
++ * out to 16bpp. 0 if n/a.
++ * @code: V4L2 media bus format code.
++ * @depth: Bits per pixel as delivered from the source.
++ * @csi_dt: CSI data type.
++ * @check_variants: Flag to denote that there are multiple mediabus formats
++ *		still in the list that could match this V4L2 format.
++ */
++struct unicam_fmt {
++	u32	fourcc;
++	u32	repacked_fourcc;
++	u32	code;
++	u8	depth;
++	u8	csi_dt;
++	u8	check_variants;
++};
++
++static const struct unicam_fmt formats[] = {
++	/* YUV Formats */
++	{
++		.fourcc		= V4L2_PIX_FMT_YUYV,
++		.code		= MEDIA_BUS_FMT_YUYV8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_UYVY,
++		.code		= MEDIA_BUS_FMT_UYVY8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YVYU,
++		.code		= MEDIA_BUS_FMT_YVYU8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_VYUY,
++		.code		= MEDIA_BUS_FMT_VYUY8_2X8,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++		.check_variants = 1,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YUYV,
++		.code		= MEDIA_BUS_FMT_YUYV8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_UYVY,
++		.code		= MEDIA_BUS_FMT_UYVY8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_YVYU,
++		.code		= MEDIA_BUS_FMT_YVYU8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_VYUY,
++		.code		= MEDIA_BUS_FMT_VYUY8_1X16,
++		.depth		= 16,
++		.csi_dt		= 0x1e,
++	}, {
++	/* RGB Formats */
++		.fourcc		= V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
++		.code		= MEDIA_BUS_FMT_RGB565_2X8_LE,
++		.depth		= 16,
++		.csi_dt		= 0x22,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
++		.code		= MEDIA_BUS_FMT_RGB565_2X8_BE,
++		.depth		= 16,
++		.csi_dt		= 0x22
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB555, /* gggbbbbb arrrrrgg */
++		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
++		.depth		= 16,
++		.csi_dt		= 0x21,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB555X, /* arrrrrgg gggbbbbb */
++		.code		= MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE,
++		.depth		= 16,
++		.csi_dt		= 0x21,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB24, /* rgb */
++		.code		= MEDIA_BUS_FMT_RGB888_1X24,
++		.depth		= 24,
++		.csi_dt		= 0x24,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_BGR24, /* bgr */
++		.code		= MEDIA_BUS_FMT_BGR888_1X24,
++		.depth		= 24,
++		.csi_dt		= 0x24,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_RGB32, /* argb */
++		.code		= MEDIA_BUS_FMT_ARGB8888_1X32,
++		.depth		= 32,
++		.csi_dt		= 0x0,
++	}, {
++	/* Bayer Formats */
++		.fourcc		= V4L2_PIX_FMT_SBGGR8,
++		.code		= MEDIA_BUS_FMT_SBGGR8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG8,
++		.code		= MEDIA_BUS_FMT_SGBRG8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG8,
++		.code		= MEDIA_BUS_FMT_SGRBG8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB8,
++		.code		= MEDIA_BUS_FMT_SRGGB8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SBGGR10,
++		.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGBRG10,
++		.code		= MEDIA_BUS_FMT_SGBRG10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGRBG10,
++		.code		= MEDIA_BUS_FMT_SGRBG10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB10P,
++		.repacked_fourcc = V4L2_PIX_FMT_SRGGB10,
++		.code		= MEDIA_BUS_FMT_SRGGB10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SBGGR12,
++		.code		= MEDIA_BUS_FMT_SBGGR12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGBRG12,
++		.code		= MEDIA_BUS_FMT_SGBRG12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGRBG12,
++		.code		= MEDIA_BUS_FMT_SGRBG12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB12P,
++		.repacked_fourcc = V4L2_PIX_FMT_SRGGB12,
++		.code		= MEDIA_BUS_FMT_SRGGB12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SBGGR14P,
++		.code		= MEDIA_BUS_FMT_SBGGR14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGBRG14P,
++		.code		= MEDIA_BUS_FMT_SGBRG14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SGRBG14P,
++		.code		= MEDIA_BUS_FMT_SGRBG14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_SRGGB14P,
++		.code		= MEDIA_BUS_FMT_SRGGB14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
++	}, {
++	/*
++	 * 16 bit Bayer formats could be supported, but there is no CSI2
++	 * data_type defined for raw 16, and no sensors that produce it at
++	 * present.
++	 */
++
++	/* Greyscale formats */
++		.fourcc		= V4L2_PIX_FMT_GREY,
++		.code		= MEDIA_BUS_FMT_Y8_1X8,
++		.depth		= 8,
++		.csi_dt		= 0x2a,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_Y10P,
++		.repacked_fourcc = V4L2_PIX_FMT_Y10,
++		.code		= MEDIA_BUS_FMT_Y10_1X10,
++		.depth		= 10,
++		.csi_dt		= 0x2b,
++	}, {
++		/* NB There is no packed V4L2 fourcc for this format. */
++		.repacked_fourcc = V4L2_PIX_FMT_Y12,
++		.code		= MEDIA_BUS_FMT_Y12_1X12,
++		.depth		= 12,
++		.csi_dt		= 0x2c,
++	},
++	/* Embedded data format */
++	{
++		.fourcc		= V4L2_META_FMT_SENSOR_DATA,
++		.code		= MEDIA_BUS_FMT_SENSOR_DATA,
++		.depth		= 8,
++	}
++};
++
++struct unicam_buffer {
++	struct vb2_v4l2_buffer vb;
++	struct list_head list;
++};
++
++static inline struct unicam_buffer *to_unicam_buffer(struct vb2_buffer *vb)
++{
++	return container_of(vb, struct unicam_buffer, vb.vb2_buf);
++}
++
++struct unicam_node {
++	bool registered;
++	int open;
++	bool streaming;
++	unsigned int pad_id;
++	/* Pointer pointing to current v4l2_buffer */
++	struct unicam_buffer *cur_frm;
++	/* Pointer pointing to next v4l2_buffer */
++	struct unicam_buffer *next_frm;
++	/* video capture */
++	const struct unicam_fmt *fmt;
++	/* Used to store current pixel format */
++	struct v4l2_format v_fmt;
++	/* Used to store current mbus frame format */
++	struct v4l2_mbus_framefmt m_fmt;
++	/* Buffer queue used in video-buf */
++	struct vb2_queue buffer_queue;
++	/* Queue of filled frames */
++	struct list_head dma_queue;
++	/* IRQ lock for DMA queue */
++	spinlock_t dma_queue_lock;
++	/* lock used to access this structure */
++	struct mutex lock;
++	/* Identifies video device for this channel */
++	struct video_device video_dev;
++	/* Pointer to the parent handle */
++	struct unicam_device *dev;
++	struct media_pad pad;
++	unsigned int embedded_lines;
++	/*
++	 * Dummy buffer intended to be used by unicam
++	 * if we have no other queued buffers to swap to.
++	 */
++	void *dummy_buf_cpu_addr;
++	dma_addr_t dummy_buf_dma_addr;
++};
++
++struct unicam_device {
++	struct kref kref;
++
++	/* V4l2 specific parameters */
++	struct v4l2_async_subdev asd;
++
++	/* peripheral base address */
++	void __iomem *base;
++	/* clock gating base address */
++	void __iomem *clk_gate_base;
++	/* clock handle */
++	struct clk *clock;
++	/* V4l2 device */
++	struct v4l2_device v4l2_dev;
++	struct media_device mdev;
++
++	/* parent device */
++	struct platform_device *pdev;
++	/* subdevice async Notifier */
++	struct v4l2_async_notifier notifier;
++	unsigned int sequence;
++
++	/* ptr to  sub device */
++	struct v4l2_subdev *sensor;
++	/* Pad config for the sensor */
++	struct v4l2_subdev_pad_config *sensor_config;
++
++	enum v4l2_mbus_type bus_type;
++	/*
++	 * Stores bus.mipi_csi2.flags for CSI2 sensors, or
++	 * bus.mipi_csi1.strobe for CCP2.
++	 */
++	unsigned int bus_flags;
++	unsigned int max_data_lanes;
++	unsigned int active_data_lanes;
++	bool sensor_embedded_data;
++
++	struct unicam_node node[MAX_NODES];
++	struct v4l2_ctrl_handler ctrl_handler;
++};
++
++static inline struct unicam_device *
++to_unicam_device(struct v4l2_device *v4l2_dev)
++{
++	return container_of(v4l2_dev, struct unicam_device, v4l2_dev);
++}
++
++/* Hardware access */
++static inline void clk_write(struct unicam_device *dev, u32 val)
++{
++	writel(val | 0x5a000000, dev->clk_gate_base);
++}
++
++static inline u32 reg_read(struct unicam_device *dev, u32 offset)
++{
++	return readl(dev->base + offset);
++}
++
++static inline void reg_write(struct unicam_device *dev, u32 offset, u32 val)
++{
++	writel(val, dev->base + offset);
++}
++
++static inline int get_field(u32 value, u32 mask)
++{
++	return (value & mask) >> __ffs(mask);
++}
++
++static inline void set_field(u32 *valp, u32 field, u32 mask)
++{
++	u32 val = *valp;
++
++	val &= ~mask;
++	val |= (field << __ffs(mask)) & mask;
++	*valp = val;
++}
++
++static inline u32 reg_read_field(struct unicam_device *dev, u32 offset,
++				 u32 mask)
++{
++	return get_field(reg_read(dev, offset), mask);
++}
++
++static inline void reg_write_field(struct unicam_device *dev, u32 offset,
++				   u32 field, u32 mask)
++{
++	u32 val = reg_read(dev, offset);
++
++	set_field(&val, field, mask);
++	reg_write(dev, offset, val);
++}
++
++/* Power management functions */
++static inline int unicam_runtime_get(struct unicam_device *dev)
++{
++	return pm_runtime_get_sync(&dev->pdev->dev);
++}
++
++static inline void unicam_runtime_put(struct unicam_device *dev)
++{
++	pm_runtime_put_sync(&dev->pdev->dev);
++}
++
++/* Format setup functions */
++static const struct unicam_fmt *find_format_by_code(u32 code)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(formats); i++) {
++		if (formats[i].code == code)
++			return &formats[i];
++	}
++
++	return NULL;
++}
++
++static int check_mbus_format(struct unicam_device *dev,
++			     const struct unicam_fmt *format)
++{
++	unsigned int i;
++	int ret = 0;
++
++	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
++		struct v4l2_subdev_mbus_code_enum mbus_code = {
++			.index = i,
++			.pad = IMAGE_PAD,
++			.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		};
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
++				       NULL, &mbus_code);
++
++		if (!ret && mbus_code.code == format->code)
++			return 1;
++	}
++
++	return 0;
++}
++
++static const struct unicam_fmt *find_format_by_pix(struct unicam_device *dev,
++						   u32 pixelformat)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(formats); i++) {
++		if (formats[i].fourcc == pixelformat ||
++		    formats[i].repacked_fourcc == pixelformat) {
++			if (formats[i].check_variants &&
++			    !check_mbus_format(dev, &formats[i]))
++				continue;
++			return &formats[i];
++		}
++	}
++
++	return NULL;
++}
++
++static inline unsigned int bytes_per_line(u32 width,
++					  const struct unicam_fmt *fmt,
++					  u32 v4l2_fourcc)
++{
++	if (v4l2_fourcc == fmt->repacked_fourcc)
++		/* Repacking always goes to 16bpp */
++		return ALIGN(width << 1, BPL_ALIGNMENT);
++	else
++		return ALIGN((width * fmt->depth) >> 3, BPL_ALIGNMENT);
++}
++
++static int __subdev_get_format(struct unicam_device *dev,
++			       struct v4l2_mbus_framefmt *fmt, int pad_id)
++{
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.pad = pad_id
++	};
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, get_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret < 0)
++		return ret;
++
++	*fmt = sd_fmt.format;
++
++	unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__,
++		   fmt->width, fmt->height, fmt->code);
++
++	return 0;
++}
++
++static int __subdev_set_format(struct unicam_device *dev,
++			       struct v4l2_mbus_framefmt *fmt, int pad_id)
++{
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.pad = pad_id
++	};
++	int ret;
++
++	sd_fmt.format = *fmt;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret < 0)
++		return ret;
++
++	*fmt = sd_fmt.format;
++
++	if (pad_id == IMAGE_PAD)
++		unicam_dbg(1, dev, "%s %dx%d code:%04x\n", __func__, fmt->width,
++			   fmt->height, fmt->code);
++	else
++		unicam_dbg(1, dev, "%s Embedded data code:%04x\n", __func__,
++			   sd_fmt.format.code);
++
++	return 0;
++}
++
++static int unicam_calc_format_size_bpl(struct unicam_device *dev,
++				       const struct unicam_fmt *fmt,
++				       struct v4l2_format *f)
++{
++	unsigned int min_bytesperline;
++
++	v4l_bound_align_image(&f->fmt.pix.width, MIN_WIDTH, MAX_WIDTH, 2,
++			      &f->fmt.pix.height, MIN_HEIGHT, MAX_HEIGHT, 0,
++			      0);
++
++	min_bytesperline = bytes_per_line(f->fmt.pix.width, fmt,
++					  f->fmt.pix.pixelformat);
++
++	if (f->fmt.pix.bytesperline > min_bytesperline &&
++	    f->fmt.pix.bytesperline <= MAX_BYTESPERLINE)
++		f->fmt.pix.bytesperline = ALIGN(f->fmt.pix.bytesperline,
++						BPL_ALIGNMENT);
++	else
++		f->fmt.pix.bytesperline = min_bytesperline;
++
++	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
++
++	unicam_dbg(3, dev, "%s: fourcc: %08X size: %dx%d bpl:%d img_size:%d\n",
++		   __func__,
++		   f->fmt.pix.pixelformat,
++		   f->fmt.pix.width, f->fmt.pix.height,
++		   f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
++
++	return 0;
++}
++
++static int unicam_reset_format(struct unicam_node *node)
++{
++	struct unicam_device *dev = node->dev;
++	struct v4l2_mbus_framefmt mbus_fmt;
++	int ret;
++
++	if (dev->sensor_embedded_data || node->pad_id != METADATA_PAD) {
++		ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
++		if (ret) {
++			unicam_err(dev, "Failed to get_format - ret %d\n", ret);
++			return ret;
++		}
++
++		if (mbus_fmt.code != node->fmt->code) {
++			unicam_err(dev, "code mismatch - fmt->code %08x, mbus_fmt.code %08x\n",
++				   node->fmt->code, mbus_fmt.code);
++			return ret;
++		}
++	}
++
++	if (node->pad_id == IMAGE_PAD) {
++		v4l2_fill_pix_format(&node->v_fmt.fmt.pix, &mbus_fmt);
++		node->v_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++		unicam_calc_format_size_bpl(dev, node->fmt, &node->v_fmt);
++	} else {
++		node->v_fmt.type = V4L2_BUF_TYPE_META_CAPTURE;
++		node->v_fmt.fmt.meta.dataformat = V4L2_META_FMT_SENSOR_DATA;
++		if (dev->sensor_embedded_data) {
++			node->v_fmt.fmt.meta.buffersize =
++					mbus_fmt.width * mbus_fmt.height;
++			node->embedded_lines = mbus_fmt.height;
++		} else {
++			node->v_fmt.fmt.meta.buffersize = UNICAM_EMBEDDED_SIZE;
++			node->embedded_lines = 1;
++		}
++	}
++
++	node->m_fmt = mbus_fmt;
++	return 0;
++}
++
++static void unicam_wr_dma_addr(struct unicam_device *dev, dma_addr_t dmaaddr,
++			       unsigned int buffer_size, int pad_id)
++{
++	dma_addr_t endaddr = dmaaddr + buffer_size;
++
++	/*
++	 * dmaaddr and endaddr should be a 32-bit address with the top two bits
++	 * set to 0x3 to signify uncached access through the Videocore memory
++	 * controller.
++	 */
++	WARN_ON((dmaaddr >> 30) != 0x3 || (endaddr >> 30) != 0x3);
++
++	if (pad_id == IMAGE_PAD) {
++		reg_write(dev, UNICAM_IBSA0, dmaaddr);
++		reg_write(dev, UNICAM_IBEA0, endaddr);
++	} else {
++		reg_write(dev, UNICAM_DBSA0, dmaaddr);
++		reg_write(dev, UNICAM_DBEA0, endaddr);
++	}
++}
++
++static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
++{
++	dma_addr_t start_addr, cur_addr;
++	unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline;
++	struct unicam_buffer *frm = dev->node[IMAGE_PAD].cur_frm;
++
++	if (!frm)
++		return 0;
++
++	start_addr = vb2_dma_contig_plane_dma_addr(&frm->vb.vb2_buf, 0);
++	cur_addr = reg_read(dev, UNICAM_IBWP);
++	return (unsigned int)(cur_addr - start_addr) / stride;
++}
++
++static inline void unicam_schedule_next_buffer(struct unicam_node *node)
++{
++	struct unicam_device *dev = node->dev;
++	struct unicam_buffer *buf;
++	unsigned int size;
++	dma_addr_t addr;
++
++	buf = list_first_entry(&node->dma_queue, struct unicam_buffer, list);
++	node->next_frm = buf;
++	list_del(&buf->list);
++
++	addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
++	size = (node->pad_id == IMAGE_PAD) ?
++			node->v_fmt.fmt.pix.sizeimage :
++			node->v_fmt.fmt.meta.buffersize;
++
++	unicam_wr_dma_addr(dev, addr, size, node->pad_id);
++}
++
++static inline void unicam_schedule_dummy_buffer(struct unicam_node *node)
++{
++	struct unicam_device *dev = node->dev;
++
++	unicam_dbg(3, dev, "Scheduling dummy buffer for node %d\n",
++		   node->pad_id);
++
++	unicam_wr_dma_addr(dev, node->dummy_buf_dma_addr, DUMMY_BUF_SIZE,
++			   node->pad_id);
++	node->next_frm = NULL;
++}
++
++static inline void unicam_process_buffer_complete(struct unicam_node *node,
++						  unsigned int sequence)
++{
++	node->cur_frm->vb.field = node->m_fmt.field;
++	node->cur_frm->vb.sequence = sequence;
++
++	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
++}
++
++static bool unicam_all_nodes_streaming(struct unicam_device *dev)
++{
++	bool ret;
++
++	ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming;
++	ret &= !dev->node[METADATA_PAD].open ||
++	       dev->node[METADATA_PAD].streaming;
++	return ret;
++}
++
++static bool unicam_all_nodes_disabled(struct unicam_device *dev)
++{
++	return !dev->node[IMAGE_PAD].streaming &&
++	       !dev->node[METADATA_PAD].streaming;
++}
++
++static void unicam_queue_event_sof(struct unicam_device *unicam)
++{
++	struct v4l2_event event = {
++		.type = V4L2_EVENT_FRAME_SYNC,
++		.u.frame_sync.frame_sequence = unicam->sequence,
++	};
++
++	v4l2_event_queue(&unicam->node[IMAGE_PAD].video_dev, &event);
++}
++
++/*
++ * unicam_isr : ISR handler for unicam capture
++ * @irq: irq number
++ * @dev_id: dev_id ptr
++ *
++ * It changes status of the captured buffer, takes next buffer from the queue
++ * and sets its address in unicam registers
++ */
++static irqreturn_t unicam_isr(int irq, void *dev)
++{
++	struct unicam_device *unicam = dev;
++	unsigned int lines_done = unicam_get_lines_done(dev);
++	unsigned int sequence = unicam->sequence;
++	unsigned int i;
++	u32 ista, sta;
++	u64 ts;
++
++	/*
++	 * Don't service interrupts if not streaming.
++	 * Avoids issues if the VPU should enable the
++	 * peripheral without the kernel knowing (that
++	 * shouldn't happen, but causes issues if it does).
++	 */
++	if (unicam_all_nodes_disabled(unicam))
++		return IRQ_NONE;
++
++	sta = reg_read(unicam, UNICAM_STA);
++	/* Write value back to clear the interrupts */
++	reg_write(unicam, UNICAM_STA, sta);
++
++	ista = reg_read(unicam, UNICAM_ISTA);
++	/* Write value back to clear the interrupts */
++	reg_write(unicam, UNICAM_ISTA, ista);
++
++	unicam_dbg(3, unicam, "ISR: ISTA: 0x%X, STA: 0x%X, sequence %d, lines done %d",
++		   ista, sta, sequence, lines_done);
++
++	if (!(sta & (UNICAM_IS | UNICAM_PI0)))
++		return IRQ_HANDLED;
++
++	/*
++	 * We must run the frame end handler first. If we have a valid next_frm
++	 * and we get a simultaneout FE + FS interrupt, running the FS handler
++	 * first would null out the next_frm ptr and we would have lost the
++	 * buffer forever.
++	 */
++	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
++		/*
++		 * Ensure we have swapped buffers already as we can't
++		 * stop the peripheral. If no buffer is available, use a
++		 * dummy buffer to dump out frames until we get a new buffer
++		 * to use.
++		 */
++		for (i = 0; i < ARRAY_SIZE(unicam->node); i++) {
++			if (!unicam->node[i].streaming)
++				continue;
++
++			if (unicam->node[i].cur_frm)
++				unicam_process_buffer_complete(&unicam->node[i],
++							       sequence);
++			unicam->node[i].cur_frm = unicam->node[i].next_frm;
++		}
++		unicam->sequence++;
++	}
++
++	if (ista & UNICAM_FSI) {
++		/*
++		 * Timestamp is to be when the first data byte was captured,
++		 * aka frame start.
++		 */
++		ts = ktime_get_ns();
++		for (i = 0; i < ARRAY_SIZE(unicam->node); i++) {
++			if (!unicam->node[i].streaming)
++				continue;
++
++			if (unicam->node[i].cur_frm)
++				unicam->node[i].cur_frm->vb.vb2_buf.timestamp =
++								ts;
++			/*
++			 * Set the next frame output to go to a dummy frame
++			 * if we have not managed to obtain another frame
++			 * from the queue.
++			 */
++			unicam_schedule_dummy_buffer(&unicam->node[i]);
++		}
++
++		unicam_queue_event_sof(unicam);
++	}
++
++	/*
++	 * Cannot swap buffer at frame end, there may be a race condition
++	 * where the HW does not actually swap it if the new frame has
++	 * already started.
++	 */
++	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
++		for (i = 0; i < ARRAY_SIZE(unicam->node); i++) {
++			if (!unicam->node[i].streaming)
++				continue;
++
++			spin_lock(&unicam->node[i].dma_queue_lock);
++			if (!list_empty(&unicam->node[i].dma_queue) &&
++			    !unicam->node[i].next_frm)
++				unicam_schedule_next_buffer(&unicam->node[i]);
++			spin_unlock(&unicam->node[i].dma_queue_lock);
++		}
++	}
++
++	if (reg_read(unicam, UNICAM_ICTL) & UNICAM_FCM) {
++		/* Switch out of trigger mode if selected */
++		reg_write_field(unicam, UNICAM_ICTL, 1, UNICAM_TFC);
++		reg_write_field(unicam, UNICAM_ICTL, 0, UNICAM_FCM);
++	}
++	return IRQ_HANDLED;
++}
++
++static int unicam_querycap(struct file *file, void *priv,
++			   struct v4l2_capability *cap)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
++	strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
++
++	snprintf(cap->bus_info, sizeof(cap->bus_info),
++		 "platform:%s", dev_name(&dev->pdev->dev));
++
++	cap->capabilities |= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_META_CAPTURE;
++
++	return 0;
++}
++
++static int unicam_enum_fmt_vid_cap(struct file *file, void  *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	unsigned int index = 0;
++	unsigned int i;
++	int ret = 0;
++
++	if (node->pad_id != IMAGE_PAD)
++		return -EINVAL;
++
++	for (i = 0; !ret && i < MAX_ENUM_MBUS_CODE; i++) {
++		struct v4l2_subdev_mbus_code_enum mbus_code = {
++			.index = i,
++			.pad = IMAGE_PAD,
++			.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		};
++		const struct unicam_fmt *fmt;
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code,
++				       NULL, &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx %d returned %d - index invalid\n",
++				   i, ret);
++			return -EINVAL;
++		}
++
++		fmt = find_format_by_code(mbus_code.code);
++		if (fmt) {
++			if (fmt->fourcc) {
++				if (index == f->index) {
++					f->pixelformat = fmt->fourcc;
++					break;
++				}
++				index++;
++			}
++			if (fmt->repacked_fourcc) {
++				if (index == f->index) {
++					f->pixelformat = fmt->repacked_fourcc;
++					break;
++				}
++				index++;
++			}
++		}
++	}
++
++	return 0;
++}
++
++static int unicam_g_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	const struct unicam_fmt *fmt = NULL;
++	int ret;
++
++	if (node->pad_id != IMAGE_PAD)
++		return -EINVAL;
++
++	/*
++	 * If a flip has occurred in the sensor, the fmt code might have
++	 * changed. So we will need to re-fetch the format from the subdevice.
++	 */
++	ret = __subdev_get_format(dev, &mbus_fmt, node->pad_id);
++	if (ret)
++		return -EINVAL;
++
++	/* Find the V4L2 format from mbus code. We must match a known format. */
++	fmt = find_format_by_code(mbus_fmt.code);
++	if (!fmt)
++		return -EINVAL;
++
++	node->fmt = fmt;
++	node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++	*f = node->v_fmt;
++
++	return 0;
++}
++
++static
++const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev)
++{
++	struct v4l2_subdev_mbus_code_enum mbus_code;
++	const struct unicam_fmt *fmt = NULL;
++	unsigned int i;
++	int ret;
++
++	for (i = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++i) {
++		memset(&mbus_code, 0, sizeof(mbus_code));
++		mbus_code.index = i;
++		mbus_code.pad = IMAGE_PAD;
++		mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
++				       &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx %u returned %d - continue\n",
++				   i, ret);
++			continue;
++		}
++
++		unicam_dbg(2, dev, "subdev %s: code: 0x%08x idx: %u\n",
++			   dev->sensor->name, mbus_code.code, i);
++
++		fmt = find_format_by_code(mbus_code.code);
++		unicam_dbg(2, dev, "fmt 0x%08x returned as %p, V4L2 FOURCC 0x%08x, csi_dt 0x%02x\n",
++			   mbus_code.code, fmt, fmt ? fmt->fourcc : 0,
++			   fmt ? fmt->csi_dt : 0);
++		if (fmt)
++			return fmt;
++	}
++
++	return NULL;
++}
++
++static int unicam_try_fmt_vid_cap(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_format sd_fmt = {
++		.which = V4L2_SUBDEV_FORMAT_TRY,
++		.pad = IMAGE_PAD
++	};
++	struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	if (node->pad_id != IMAGE_PAD)
++		return -EINVAL;
++
++	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
++	if (!fmt) {
++		/*
++		 * Pixel format not supported by unicam. Choose the first
++		 * supported format, and let the sensor choose something else.
++		 */
++		unicam_dbg(3, dev, "Fourcc format (0x%08x) not found. Use first format.\n",
++			   f->fmt.pix.pixelformat);
++
++		fmt = &formats[0];
++		f->fmt.pix.pixelformat = fmt->fourcc;
++	}
++
++	v4l2_fill_mbus_format(mbus_fmt, &f->fmt.pix, fmt->code);
++	/*
++	 * No support for receiving interlaced video, so never
++	 * request it from the sensor subdev.
++	 */
++	mbus_fmt->field = V4L2_FIELD_NONE;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, set_fmt, dev->sensor_config,
++			       &sd_fmt);
++	if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
++		return ret;
++
++	if (mbus_fmt->field != V4L2_FIELD_NONE)
++		unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
++
++	v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
++	if (mbus_fmt->code != fmt->code) {
++		/* Sensor has returned an alternate format */
++		fmt = find_format_by_code(mbus_fmt->code);
++		if (!fmt) {
++			/*
++			 * The alternate format is one unicam can't support.
++			 * Find the first format that is supported by both, and
++			 * then set that.
++			 */
++			fmt = get_first_supported_format(dev);
++			mbus_fmt->code = fmt->code;
++
++			ret = v4l2_subdev_call(dev->sensor, pad, set_fmt,
++					       dev->sensor_config, &sd_fmt);
++			if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
++				return ret;
++
++			if (mbus_fmt->field != V4L2_FIELD_NONE)
++				unicam_info(dev, "Sensor trying to send interlaced video - results may be unpredictable\n");
++
++			v4l2_fill_pix_format(&f->fmt.pix, &sd_fmt.format);
++
++			if (mbus_fmt->code != fmt->code) {
++				/*
++				 * We've set a format that the sensor reports
++				 * as being supported, but it refuses to set it.
++				 * Not much else we can do.
++				 * Assume that the sensor driver may accept the
++				 * format when it is set (rather than tried).
++				 */
++				unicam_err(dev, "Sensor won't accept default format, and Unicam can't support sensor default\n");
++			}
++		}
++
++		if (fmt->fourcc)
++			f->fmt.pix.pixelformat = fmt->fourcc;
++		else
++			f->fmt.pix.pixelformat = fmt->repacked_fourcc;
++	}
++
++	return unicam_calc_format_size_bpl(dev, fmt, f);
++}
++
++static int unicam_s_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct vb2_queue *q = &node->buffer_queue;
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	if (vb2_is_busy(q))
++		return -EBUSY;
++
++	ret = unicam_try_fmt_vid_cap(file, priv, f);
++	if (ret < 0)
++		return ret;
++
++	fmt = find_format_by_pix(dev, f->fmt.pix.pixelformat);
++	if (!fmt) {
++		/*
++		 * Unknown pixel format - adopt a default.
++		 * This shouldn't happen as try_fmt should have resolved any
++		 * issues first.
++		 */
++		fmt = get_first_supported_format(dev);
++		if (!fmt)
++			/*
++			 * It shouldn't be possible to get here with no
++			 * supported formats
++			 */
++			return -EINVAL;
++		f->fmt.pix.pixelformat = fmt->fourcc;
++		return -EINVAL;
++	}
++
++	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, fmt->code);
++
++	ret = __subdev_set_format(dev, &mbus_fmt, node->pad_id);
++	if (ret) {
++		unicam_dbg(3, dev, "%s __subdev_set_format failed %d\n",
++			   __func__, ret);
++		return ret;
++	}
++
++	/* Just double check nothing has gone wrong */
++	if (mbus_fmt.code != fmt->code) {
++		unicam_dbg(3, dev,
++			   "%s subdev changed format on us, this should not happen\n",
++			   __func__);
++		return -EINVAL;
++	}
++
++	node->fmt = fmt;
++	node->v_fmt.fmt.pix.pixelformat = f->fmt.pix.pixelformat;
++	node->v_fmt.fmt.pix.bytesperline = f->fmt.pix.bytesperline;
++	unicam_reset_format(node);
++
++	unicam_dbg(3, dev,
++		   "%s %dx%d, mbus_fmt 0x%08X, V4L2 pix 0x%08X.\n",
++		   __func__, node->v_fmt.fmt.pix.width,
++		   node->v_fmt.fmt.pix.height, mbus_fmt.code,
++		   node->v_fmt.fmt.pix.pixelformat);
++
++	*f = node->v_fmt;
++
++	return 0;
++}
++
++static int unicam_enum_fmt_meta_cap(struct file *file, void *priv,
++				    struct v4l2_fmtdesc *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	const struct unicam_fmt *fmt;
++	u32 code;
++	int ret = 0;
++
++	if (node->pad_id != METADATA_PAD || f->index != 0)
++		return -EINVAL;
++
++	if (dev->sensor_embedded_data) {
++		struct v4l2_subdev_mbus_code_enum mbus_code = {
++			.index = f->index,
++			.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++			.pad = METADATA_PAD,
++		};
++
++		ret = v4l2_subdev_call(dev->sensor, pad, enum_mbus_code, NULL,
++				       &mbus_code);
++		if (ret < 0) {
++			unicam_dbg(2, dev,
++				   "subdev->enum_mbus_code idx 0 returned %d - index invalid\n",
++				   ret);
++			return -EINVAL;
++		}
++
++		code = mbus_code.code;
++	} else {
++		code = MEDIA_BUS_FMT_SENSOR_DATA;
++	}
++
++	fmt = find_format_by_code(code);
++	if (fmt)
++		f->pixelformat = fmt->fourcc;
++
++	return 0;
++}
++
++static int unicam_g_fmt_meta_cap(struct file *file, void *priv,
++				 struct v4l2_format *f)
++{
++	struct unicam_node *node = video_drvdata(file);
++
++	if (node->pad_id != METADATA_PAD)
++		return -EINVAL;
++
++	*f = node->v_fmt;
++
++	return 0;
++}
++
++static int unicam_queue_setup(struct vb2_queue *vq,
++			      unsigned int *nbuffers,
++			      unsigned int *nplanes,
++			      unsigned int sizes[],
++			      struct device *alloc_devs[])
++{
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++	unsigned int size = node->pad_id == IMAGE_PAD ?
++				    node->v_fmt.fmt.pix.sizeimage :
++				    node->v_fmt.fmt.meta.buffersize;
++
++	if (vq->num_buffers + *nbuffers < 3)
++		*nbuffers = 3 - vq->num_buffers;
++
++	if (*nplanes) {
++		if (sizes[0] < size) {
++			unicam_err(dev, "sizes[0] %i < size %u\n", sizes[0],
++				   size);
++			return -EINVAL;
++		}
++		size = sizes[0];
++	}
++
++	*nplanes = 1;
++	sizes[0] = size;
++
++	return 0;
++}
++
++static int unicam_buffer_prepare(struct vb2_buffer *vb)
++{
++	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_device *dev = node->dev;
++	struct unicam_buffer *buf = to_unicam_buffer(vb);
++	unsigned long size;
++
++	if (WARN_ON(!node->fmt))
++		return -EINVAL;
++
++	size = node->pad_id == IMAGE_PAD ? node->v_fmt.fmt.pix.sizeimage :
++					   node->v_fmt.fmt.meta.buffersize;
++	if (vb2_plane_size(vb, 0) < size) {
++		unicam_err(dev, "data will not fit into plane (%lu < %lu)\n",
++			   vb2_plane_size(vb, 0), size);
++		return -EINVAL;
++	}
++
++	vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size);
++	return 0;
++}
++
++static void unicam_buffer_queue(struct vb2_buffer *vb)
++{
++	struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue);
++	struct unicam_buffer *buf = to_unicam_buffer(vb);
++	unsigned long flags;
++
++	spin_lock_irqsave(&node->dma_queue_lock, flags);
++	list_add_tail(&buf->list, &node->dma_queue);
++	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
++}
++
++static void unicam_set_packing_config(struct unicam_device *dev)
++{
++	u32 pack, unpack;
++	u32 val;
++
++	if (dev->node[IMAGE_PAD].v_fmt.fmt.pix.pixelformat ==
++	    dev->node[IMAGE_PAD].fmt->fourcc) {
++		unpack = UNICAM_PUM_NONE;
++		pack = UNICAM_PPM_NONE;
++	} else {
++		switch (dev->node[IMAGE_PAD].fmt->depth) {
++		case 8:
++			unpack = UNICAM_PUM_UNPACK8;
++			break;
++		case 10:
++			unpack = UNICAM_PUM_UNPACK10;
++			break;
++		case 12:
++			unpack = UNICAM_PUM_UNPACK12;
++			break;
++		case 14:
++			unpack = UNICAM_PUM_UNPACK14;
++			break;
++		case 16:
++			unpack = UNICAM_PUM_UNPACK16;
++			break;
++		default:
++			unpack = UNICAM_PUM_NONE;
++			break;
++		}
++
++		/* Repacking is always to 16bpp */
++		pack = UNICAM_PPM_PACK16;
++	}
++
++	val = 0;
++	set_field(&val, unpack, UNICAM_PUM_MASK);
++	set_field(&val, pack, UNICAM_PPM_MASK);
++	reg_write(dev, UNICAM_IPIPE, val);
++}
++
++static void unicam_cfg_image_id(struct unicam_device *dev)
++{
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 mode, hardcode VC 0 for now. */
++		reg_write(dev, UNICAM_IDI0,
++			  (0 << 6) | dev->node[IMAGE_PAD].fmt->csi_dt);
++	} else {
++		/* CCP2 mode */
++		reg_write(dev, UNICAM_IDI0,
++			  0x80 | dev->node[IMAGE_PAD].fmt->csi_dt);
++	}
++}
++
++static void unicam_enable_ed(struct unicam_device *dev)
++{
++	u32 val = reg_read(dev, UNICAM_DCS);
++
++	set_field(&val, 2, UNICAM_EDL_MASK);
++	/* Do not wrap at the end of the embedded data buffer */
++	set_field(&val, 0, UNICAM_DBOB);
++
++	reg_write(dev, UNICAM_DCS, val);
++}
++
++static void unicam_start_rx(struct unicam_device *dev, dma_addr_t *addr)
++{
++	int line_int_freq = dev->node[IMAGE_PAD].v_fmt.fmt.pix.height >> 2;
++	unsigned int size, i;
++	u32 val;
++
++	if (line_int_freq < 128)
++		line_int_freq = 128;
++
++	/* Enable lane clocks */
++	val = 1;
++	for (i = 0; i < dev->active_data_lanes; i++)
++		val = val << 2 | 1;
++	clk_write(dev, val);
++
++	/* Basic init */
++	reg_write(dev, UNICAM_CTRL, UNICAM_MEM);
++
++	/* Enable analogue control, and leave in reset. */
++	val = UNICAM_AR;
++	set_field(&val, 7, UNICAM_CTATADJ_MASK);
++	set_field(&val, 7, UNICAM_PTATADJ_MASK);
++	reg_write(dev, UNICAM_ANA, val);
++	usleep_range(1000, 2000);
++
++	/* Come out of reset */
++	reg_write_field(dev, UNICAM_ANA, 0, UNICAM_AR);
++
++	/* Peripheral reset */
++	reg_write_field(dev, UNICAM_CTRL, 1, UNICAM_CPR);
++	reg_write_field(dev, UNICAM_CTRL, 0, UNICAM_CPR);
++
++	reg_write_field(dev, UNICAM_CTRL, 0, UNICAM_CPE);
++
++	/* Enable Rx control. */
++	val = reg_read(dev, UNICAM_CTRL);
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		set_field(&val, UNICAM_CPM_CSI2, UNICAM_CPM_MASK);
++		set_field(&val, UNICAM_DCM_STROBE, UNICAM_DCM_MASK);
++	} else {
++		set_field(&val, UNICAM_CPM_CCP2, UNICAM_CPM_MASK);
++		set_field(&val, dev->bus_flags, UNICAM_DCM_MASK);
++	}
++	/* Packet framer timeout */
++	set_field(&val, 0xf, UNICAM_PFT_MASK);
++	set_field(&val, 128, UNICAM_OET_MASK);
++	reg_write(dev, UNICAM_CTRL, val);
++
++	reg_write(dev, UNICAM_IHWIN, 0);
++	reg_write(dev, UNICAM_IVWIN, 0);
++
++	/* AXI bus access QoS setup */
++	val = reg_read(dev, UNICAM_PRI);
++	set_field(&val, 0, UNICAM_BL_MASK);
++	set_field(&val, 0, UNICAM_BS_MASK);
++	set_field(&val, 0xe, UNICAM_PP_MASK);
++	set_field(&val, 8, UNICAM_NP_MASK);
++	set_field(&val, 2, UNICAM_PT_MASK);
++	set_field(&val, 1, UNICAM_PE);
++	reg_write(dev, UNICAM_PRI, val);
++
++	reg_write_field(dev, UNICAM_ANA, 0, UNICAM_DDL);
++
++	/* Always start in trigger frame capture mode (UNICAM_FCM set) */
++	val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM | UNICAM_IBOB;
++	set_field(&val, line_int_freq, UNICAM_LCIE_MASK);
++	reg_write(dev, UNICAM_ICTL, val);
++	reg_write(dev, UNICAM_STA, UNICAM_STA_MASK_ALL);
++	reg_write(dev, UNICAM_ISTA, UNICAM_ISTA_MASK_ALL);
++
++	/* tclk_term_en */
++	reg_write_field(dev, UNICAM_CLT, 2, UNICAM_CLT1_MASK);
++	/* tclk_settle */
++	reg_write_field(dev, UNICAM_CLT, 6, UNICAM_CLT2_MASK);
++	/* td_term_en */
++	reg_write_field(dev, UNICAM_DLT, 2, UNICAM_DLT1_MASK);
++	/* ths_settle */
++	reg_write_field(dev, UNICAM_DLT, 6, UNICAM_DLT2_MASK);
++	/* trx_enable */
++	reg_write_field(dev, UNICAM_DLT, 0, UNICAM_DLT3_MASK);
++
++	reg_write_field(dev, UNICAM_CTRL, 0, UNICAM_SOE);
++
++	/* Packet compare setup - required to avoid missing frame ends */
++	val = 0;
++	set_field(&val, 1, UNICAM_PCE);
++	set_field(&val, 1, UNICAM_GI);
++	set_field(&val, 1, UNICAM_CPH);
++	set_field(&val, 0, UNICAM_PCVC_MASK);
++	set_field(&val, 1, UNICAM_PCDT_MASK);
++	reg_write(dev, UNICAM_CMP0, val);
++
++	/* Enable clock lane and set up terminations */
++	val = 0;
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 */
++		set_field(&val, 1, UNICAM_CLE);
++		set_field(&val, 1, UNICAM_CLLPE);
++		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
++			set_field(&val, 1, UNICAM_CLTRE);
++			set_field(&val, 1, UNICAM_CLHSE);
++		}
++	} else {
++		/* CCP2 */
++		set_field(&val, 1, UNICAM_CLE);
++		set_field(&val, 1, UNICAM_CLHSE);
++		set_field(&val, 1, UNICAM_CLTRE);
++	}
++	reg_write(dev, UNICAM_CLK, val);
++
++	/*
++	 * Enable required data lanes with appropriate terminations.
++	 * The same value needs to be written to UNICAM_DATn registers for
++	 * the active lanes, and 0 for inactive ones.
++	 */
++	val = 0;
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		/* CSI2 */
++		set_field(&val, 1, UNICAM_DLE);
++		set_field(&val, 1, UNICAM_DLLPE);
++		if (dev->bus_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK) {
++			set_field(&val, 1, UNICAM_DLTRE);
++			set_field(&val, 1, UNICAM_DLHSE);
++		}
++	} else {
++		/* CCP2 */
++		set_field(&val, 1, UNICAM_DLE);
++		set_field(&val, 1, UNICAM_DLHSE);
++		set_field(&val, 1, UNICAM_DLTRE);
++	}
++	reg_write(dev, UNICAM_DAT0, val);
++
++	if (dev->active_data_lanes == 1)
++		val = 0;
++	reg_write(dev, UNICAM_DAT1, val);
++
++	if (dev->max_data_lanes > 2) {
++		/*
++		 * Registers UNICAM_DAT2 and UNICAM_DAT3 only valid if the
++		 * instance supports more than 2 data lanes.
++		 */
++		if (dev->active_data_lanes == 2)
++			val = 0;
++		reg_write(dev, UNICAM_DAT2, val);
++
++		if (dev->active_data_lanes == 3)
++			val = 0;
++		reg_write(dev, UNICAM_DAT3, val);
++	}
++
++	reg_write(dev, UNICAM_IBLS,
++		  dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline);
++	size = dev->node[IMAGE_PAD].v_fmt.fmt.pix.sizeimage;
++	unicam_wr_dma_addr(dev, addr[IMAGE_PAD], size, IMAGE_PAD);
++	unicam_set_packing_config(dev);
++	unicam_cfg_image_id(dev);
++
++	val = reg_read(dev, UNICAM_MISC);
++	set_field(&val, 1, UNICAM_FL0);
++	set_field(&val, 1, UNICAM_FL1);
++	reg_write(dev, UNICAM_MISC, val);
++
++	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data) {
++		size = dev->node[METADATA_PAD].v_fmt.fmt.meta.buffersize;
++		unicam_enable_ed(dev);
++		unicam_wr_dma_addr(dev, addr[METADATA_PAD], size, METADATA_PAD);
++	}
++
++	/* Enable peripheral */
++	reg_write_field(dev, UNICAM_CTRL, 1, UNICAM_CPE);
++
++	/* Load image pointers */
++	reg_write_field(dev, UNICAM_ICTL, 1, UNICAM_LIP_MASK);
++
++	/* Load embedded data buffer pointers if needed */
++	if (dev->node[METADATA_PAD].streaming && dev->sensor_embedded_data)
++		reg_write_field(dev, UNICAM_DCS, 1, UNICAM_LDP);
++
++	/*
++	 * Enable trigger only for the first frame to
++	 * sync correctly to the FS from the source.
++	 */
++	reg_write_field(dev, UNICAM_ICTL, 1, UNICAM_TFC);
++}
++
++static void unicam_disable(struct unicam_device *dev)
++{
++	/* Analogue lane control disable */
++	reg_write_field(dev, UNICAM_ANA, 1, UNICAM_DDL);
++
++	/* Stop the output engine */
++	reg_write_field(dev, UNICAM_CTRL, 1, UNICAM_SOE);
++
++	/* Disable the data lanes. */
++	reg_write(dev, UNICAM_DAT0, 0);
++	reg_write(dev, UNICAM_DAT1, 0);
++
++	if (dev->max_data_lanes > 2) {
++		reg_write(dev, UNICAM_DAT2, 0);
++		reg_write(dev, UNICAM_DAT3, 0);
++	}
++
++	/* Peripheral reset */
++	reg_write_field(dev, UNICAM_CTRL, 1, UNICAM_CPR);
++	usleep_range(50, 100);
++	reg_write_field(dev, UNICAM_CTRL, 0, UNICAM_CPR);
++
++	/* Disable peripheral */
++	reg_write_field(dev, UNICAM_CTRL, 0, UNICAM_CPE);
++
++	/* Clear ED setup */
++	reg_write(dev, UNICAM_DCS, 0);
++
++	/* Disable all lane clocks */
++	clk_write(dev, 0);
++}
++
++static void unicam_return_buffers(struct unicam_node *node)
++{
++	struct unicam_buffer *buf, *tmp;
++	unsigned long flags;
++
++	spin_lock_irqsave(&node->dma_queue_lock, flags);
++	list_for_each_entry_safe(buf, tmp, &node->dma_queue, list) {
++		list_del(&buf->list);
++		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++	}
++
++	if (node->cur_frm)
++		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
++				VB2_BUF_STATE_ERROR);
++	if (node->next_frm && node->cur_frm != node->next_frm)
++		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
++				VB2_BUF_STATE_ERROR);
++
++	node->cur_frm = NULL;
++	node->next_frm = NULL;
++	spin_unlock_irqrestore(&node->dma_queue_lock, flags);
++}
++
++static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count)
++{
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++	dma_addr_t buffer_addr[MAX_NODES] = { 0 };
++	unsigned long flags;
++	unsigned int i;
++	int ret;
++
++	node->streaming = true;
++	if (!unicam_all_nodes_streaming(dev)) {
++		unicam_dbg(3, dev, "Not all nodes are streaming yet.");
++		return 0;
++	}
++
++	dev->sequence = 0;
++	ret = unicam_runtime_get(dev);
++	if (ret < 0) {
++		unicam_dbg(3, dev, "unicam_runtime_get failed\n");
++		goto err_streaming;
++	}
++
++	/*
++	 * TODO: Retrieve the number of active data lanes from the connected
++	 * subdevice.
++	 */
++	dev->active_data_lanes = dev->max_data_lanes;
++
++	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
++	if (ret) {
++		unicam_err(dev, "failed to set up clock\n");
++		goto err_pm_put;
++	}
++
++	ret = clk_prepare_enable(dev->clock);
++	if (ret) {
++		unicam_err(dev, "Failed to enable CSI clock: %d\n", ret);
++		goto err_pm_put;
++	}
++
++	for (i = 0; i < ARRAY_SIZE(dev->node); i++) {
++		struct unicam_buffer *buf;
++
++		if (!dev->node[i].streaming)
++			continue;
++
++		spin_lock_irqsave(&dev->node[i].dma_queue_lock, flags);
++		buf = list_first_entry(&dev->node[i].dma_queue,
++				       struct unicam_buffer, list);
++		dev->node[i].cur_frm = buf;
++		dev->node[i].next_frm = buf;
++		list_del(&buf->list);
++		spin_unlock_irqrestore(&dev->node[i].dma_queue_lock, flags);
++
++		buffer_addr[i] =
++			vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
++	}
++
++	unicam_start_rx(dev, buffer_addr);
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_stream, 1);
++	if (ret < 0) {
++		unicam_err(dev, "stream on failed in subdev\n");
++		goto err_disable_unicam;
++	}
++
++	return 0;
++
++err_disable_unicam:
++	unicam_disable(dev);
++	clk_disable_unprepare(dev->clock);
++err_pm_put:
++	unicam_runtime_put(dev);
++err_streaming:
++	unicam_return_buffers(node);
++	node->streaming = false;
++
++	return ret;
++}
++
++static void unicam_stop_streaming(struct vb2_queue *vq)
++{
++	struct unicam_node *node = vb2_get_drv_priv(vq);
++	struct unicam_device *dev = node->dev;
++
++	node->streaming = false;
++
++	if (node->pad_id == IMAGE_PAD) {
++		/*
++		 * Stop streaming the sensor and disable the peripheral.
++		 * We cannot continue streaming embedded data with the
++		 * image pad disabled.
++		 */
++		if (v4l2_subdev_call(dev->sensor, video, s_stream, 0) < 0)
++			unicam_err(dev, "stream off failed in subdev\n");
++
++		unicam_disable(dev);
++		clk_disable_unprepare(dev->clock);
++		unicam_runtime_put(dev);
++
++	} else if (node->pad_id == METADATA_PAD) {
++		/*
++		 * Allow the hardware to spin in the dummy buffer.
++		 * This is only really needed if the embedded data pad is
++		 * disabled before the image pad.
++		 */
++		unicam_wr_dma_addr(dev, node->dummy_buf_dma_addr,
++				   DUMMY_BUF_SIZE, METADATA_PAD);
++	}
++
++	/* Clear all queued buffers for the node */
++	unicam_return_buffers(node);
++}
++
++static int unicam_enum_input(struct file *file, void *priv,
++			     struct v4l2_input *inp)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	if (inp->index != 0)
++		return -EINVAL;
++
++	inp->type = V4L2_INPUT_TYPE_CAMERA;
++	if (v4l2_subdev_has_op(dev->sensor, video, s_dv_timings)) {
++		inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
++		inp->std = 0;
++	} else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) {
++		inp->capabilities = V4L2_IN_CAP_STD;
++		if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std)
++					< 0)
++			inp->std = V4L2_STD_ALL;
++	} else {
++		inp->capabilities = 0;
++		inp->std = 0;
++	}
++	sprintf(inp->name, "Camera 0");
++	return 0;
++}
++
++static int unicam_g_input(struct file *file, void *priv, unsigned int *i)
++{
++	*i = 0;
++
++	return 0;
++}
++
++static int unicam_s_input(struct file *file, void *priv, unsigned int i)
++{
++	/*
++	 * FIXME: Ideally we would like to be able to query the source
++	 * subdevice for information over the input connectors it supports,
++	 * and map that through in to a call to video_ops->s_routing.
++	 * There is no infrastructure support for defining that within
++	 * devicetree at present. Until that is implemented we can't
++	 * map a user physical connector number to s_routing input number.
++	 */
++	if (i > 0)
++		return -EINVAL;
++
++	return 0;
++}
++
++static int unicam_querystd(struct file *file, void *priv,
++			   v4l2_std_id *std)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, video, querystd, std);
++}
++
++static int unicam_g_std(struct file *file, void *priv, v4l2_std_id *std)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, video, g_std, std);
++}
++
++static int unicam_s_std(struct file *file, void *priv, v4l2_std_id std)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	int ret;
++	v4l2_std_id current_std;
++
++	ret = v4l2_subdev_call(dev->sensor, video, g_std, &current_std);
++	if (ret)
++		return ret;
++
++	if (std == current_std)
++		return 0;
++
++	if (vb2_is_busy(&node->buffer_queue))
++		return -EBUSY;
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_std, std);
++
++	/* Force recomputation of bytesperline */
++	node->v_fmt.fmt.pix.bytesperline = 0;
++
++	unicam_reset_format(node);
++
++	return ret;
++}
++
++static int unicam_s_edid(struct file *file, void *priv, struct v4l2_edid *edid)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, pad, set_edid, edid);
++}
++
++static int unicam_g_edid(struct file *file, void *priv, struct v4l2_edid *edid)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, pad, get_edid, edid);
++}
++
++static int unicam_s_selection(struct file *file, void *priv,
++			      struct v4l2_selection *sel)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_selection sdsel = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.target = sel->target,
++		.flags = sel->flags,
++		.r = sel->r,
++	};
++
++	return v4l2_subdev_call(dev->sensor, pad, set_selection, NULL, &sdsel);
++}
++
++static int unicam_g_selection(struct file *file, void *priv,
++			      struct v4l2_selection *sel)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev_selection sdsel = {
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++		.target = sel->target,
++	};
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, get_selection, NULL, &sdsel);
++	if (!ret)
++		sel->r = sdsel.r;
++
++	return ret;
++}
++
++static int unicam_enum_framesizes(struct file *file, void *priv,
++				  struct v4l2_frmsizeenum *fsize)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	const struct unicam_fmt *fmt;
++	struct v4l2_subdev_frame_size_enum fse;
++	int ret;
++
++	/* check for valid format */
++	fmt = find_format_by_pix(dev, fsize->pixel_format);
++	if (!fmt) {
++		unicam_dbg(3, dev, "Invalid pixel code: %x\n",
++			   fsize->pixel_format);
++		return -EINVAL;
++	}
++	fse.code = fmt->code;
++
++	fse.which = V4L2_SUBDEV_FORMAT_ACTIVE;
++	fse.index = fsize->index;
++	fse.pad = node->pad_id;
++
++	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_size, NULL, &fse);
++	if (ret)
++		return ret;
++
++	unicam_dbg(1, dev, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
++		   __func__, fse.index, fse.code, fse.min_width, fse.max_width,
++		   fse.min_height, fse.max_height);
++
++	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
++	fsize->discrete.width = fse.max_width;
++	fsize->discrete.height = fse.max_height;
++
++	return 0;
++}
++
++static int unicam_enum_frameintervals(struct file *file, void *priv,
++				      struct v4l2_frmivalenum *fival)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	const struct unicam_fmt *fmt;
++	struct v4l2_subdev_frame_interval_enum fie = {
++		.index = fival->index,
++		.width = fival->width,
++		.height = fival->height,
++		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
++	};
++	int ret;
++
++	fmt = find_format_by_pix(dev, fival->pixel_format);
++	if (!fmt)
++		return -EINVAL;
++
++	fie.code = fmt->code;
++	ret = v4l2_subdev_call(dev->sensor, pad, enum_frame_interval,
++			       NULL, &fie);
++	if (ret)
++		return ret;
++
++	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
++	fival->discrete = fie.interval;
++
++	return 0;
++}
++
++static int unicam_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_g_parm_cap(video_devdata(file), dev->sensor, a);
++}
++
++static int unicam_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_s_parm_cap(video_devdata(file), dev->sensor, a);
++}
++
++static int unicam_g_dv_timings(struct file *file, void *priv,
++			       struct v4l2_dv_timings *timings)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, video, g_dv_timings, timings);
++}
++
++static int unicam_s_dv_timings(struct file *file, void *priv,
++			       struct v4l2_dv_timings *timings)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_dv_timings current_timings;
++	int ret;
++
++	ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings,
++			       &current_timings);
++
++	if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
++		return 0;
++
++	if (vb2_is_busy(&node->buffer_queue))
++		return -EBUSY;
++
++	ret = v4l2_subdev_call(dev->sensor, video, s_dv_timings, timings);
++
++	/* Force recomputation of bytesperline */
++	node->v_fmt.fmt.pix.bytesperline = 0;
++
++	unicam_reset_format(node);
++
++	return ret;
++}
++
++static int unicam_query_dv_timings(struct file *file, void *priv,
++				   struct v4l2_dv_timings *timings)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, video, query_dv_timings, timings);
++}
++
++static int unicam_enum_dv_timings(struct file *file, void *priv,
++				  struct v4l2_enum_dv_timings *timings)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, pad, enum_dv_timings, timings);
++}
++
++static int unicam_dv_timings_cap(struct file *file, void *priv,
++				 struct v4l2_dv_timings_cap *cap)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++
++	return v4l2_subdev_call(dev->sensor, pad, dv_timings_cap, cap);
++}
++
++static int unicam_subscribe_event(struct v4l2_fh *fh,
++				  const struct v4l2_event_subscription *sub)
++{
++	switch (sub->type) {
++	case V4L2_EVENT_FRAME_SYNC:
++		return v4l2_event_subscribe(fh, sub, 2, NULL);
++	case V4L2_EVENT_SOURCE_CHANGE:
++		return v4l2_event_subscribe(fh, sub, 4, NULL);
++	}
++
++	return v4l2_ctrl_subscribe_event(fh, sub);
++}
++
++static int unicam_log_status(struct file *file, void *fh)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	u32 reg;
++
++	/* status for sub devices */
++	v4l2_device_call_all(&dev->v4l2_dev, 0, core, log_status);
++
++	unicam_info(dev, "-----Receiver status-----\n");
++	unicam_info(dev, "V4L2 width/height:   %ux%u\n",
++		    node->v_fmt.fmt.pix.width, node->v_fmt.fmt.pix.height);
++	unicam_info(dev, "Mediabus format:     %08x\n", node->fmt->code);
++	unicam_info(dev, "V4L2 format:         %08x\n",
++		    node->v_fmt.fmt.pix.pixelformat);
++	reg = reg_read(dev, UNICAM_IPIPE);
++	unicam_info(dev, "Unpacking/packing:   %u / %u\n",
++		    get_field(reg, UNICAM_PUM_MASK),
++		    get_field(reg, UNICAM_PPM_MASK));
++	unicam_info(dev, "----Live data----\n");
++	unicam_info(dev, "Programmed stride:   %4u\n",
++		    reg_read(dev, UNICAM_IBLS));
++	unicam_info(dev, "Detected resolution: %ux%u\n",
++		    reg_read(dev, UNICAM_IHSTA),
++		    reg_read(dev, UNICAM_IVSTA));
++	unicam_info(dev, "Write pointer:       %08x\n",
++		    reg_read(dev, UNICAM_IBWP));
++
++	return 0;
++}
++
++static void unicam_notify(struct v4l2_subdev *sd,
++			  unsigned int notification, void *arg)
++{
++	struct unicam_device *dev = to_unicam_device(sd->v4l2_dev);
++
++	switch (notification) {
++	case V4L2_DEVICE_NOTIFY_EVENT:
++		v4l2_event_queue(&dev->node[IMAGE_PAD].video_dev, arg);
++		break;
++	default:
++		break;
++	}
++}
++
++static const struct vb2_ops unicam_video_qops = {
++	.wait_prepare		= vb2_ops_wait_prepare,
++	.wait_finish		= vb2_ops_wait_finish,
++	.queue_setup		= unicam_queue_setup,
++	.buf_prepare		= unicam_buffer_prepare,
++	.buf_queue		= unicam_buffer_queue,
++	.start_streaming	= unicam_start_streaming,
++	.stop_streaming		= unicam_stop_streaming,
++};
++
++/*
++ * unicam_v4l2_open : This function is based on the v4l2_fh_open helper
++ * function. It has been augmented to handle sensor subdevice power management,
++ */
++static int unicam_v4l2_open(struct file *file)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	int ret;
++
++	mutex_lock(&node->lock);
++
++	ret = v4l2_fh_open(file);
++	if (ret) {
++		unicam_err(dev, "v4l2_fh_open failed\n");
++		goto unlock;
++	}
++
++	node->open++;
++
++	if (!v4l2_fh_is_singular_file(file))
++		goto unlock;
++
++	ret = v4l2_subdev_call(dev->sensor, core, s_power, 1);
++	if (ret < 0 && ret != -ENOIOCTLCMD) {
++		v4l2_fh_release(file);
++		node->open--;
++		goto unlock;
++	}
++
++	ret = 0;
++
++unlock:
++	mutex_unlock(&node->lock);
++	return ret;
++}
++
++static int unicam_v4l2_release(struct file *file)
++{
++	struct unicam_node *node = video_drvdata(file);
++	struct unicam_device *dev = node->dev;
++	struct v4l2_subdev *sd = dev->sensor;
++	bool fh_singular;
++	int ret;
++
++	mutex_lock(&node->lock);
++
++	fh_singular = v4l2_fh_is_singular_file(file);
++
++	ret = _vb2_fop_release(file, NULL);
++
++	if (fh_singular)
++		v4l2_subdev_call(sd, core, s_power, 0);
++
++	node->open--;
++	mutex_unlock(&node->lock);
++
++	return ret;
++}
++
++/* unicam capture driver file operations */
++static const struct v4l2_file_operations unicam_fops = {
++	.owner		= THIS_MODULE,
++	.open		= unicam_v4l2_open,
++	.release	= unicam_v4l2_release,
++	.read		= vb2_fop_read,
++	.poll		= vb2_fop_poll,
++	.unlocked_ioctl	= video_ioctl2,
++	.mmap		= vb2_fop_mmap,
++};
++
++/* unicam capture ioctl operations */
++static const struct v4l2_ioctl_ops unicam_ioctl_ops = {
++	.vidioc_querycap		= unicam_querycap,
++	.vidioc_enum_fmt_vid_cap	= unicam_enum_fmt_vid_cap,
++	.vidioc_g_fmt_vid_cap		= unicam_g_fmt_vid_cap,
++	.vidioc_s_fmt_vid_cap		= unicam_s_fmt_vid_cap,
++	.vidioc_try_fmt_vid_cap		= unicam_try_fmt_vid_cap,
++
++	.vidioc_enum_fmt_meta_cap	= unicam_enum_fmt_meta_cap,
++	.vidioc_g_fmt_meta_cap		= unicam_g_fmt_meta_cap,
++	.vidioc_s_fmt_meta_cap		= unicam_g_fmt_meta_cap,
++	.vidioc_try_fmt_meta_cap	= unicam_g_fmt_meta_cap,
++
++	.vidioc_enum_input		= unicam_enum_input,
++	.vidioc_g_input			= unicam_g_input,
++	.vidioc_s_input			= unicam_s_input,
++
++	.vidioc_querystd		= unicam_querystd,
++	.vidioc_s_std			= unicam_s_std,
++	.vidioc_g_std			= unicam_g_std,
++
++	.vidioc_g_edid			= unicam_g_edid,
++	.vidioc_s_edid			= unicam_s_edid,
++
++	.vidioc_enum_framesizes		= unicam_enum_framesizes,
++	.vidioc_enum_frameintervals	= unicam_enum_frameintervals,
++
++	.vidioc_g_selection		= unicam_g_selection,
++	.vidioc_s_selection		= unicam_s_selection,
++
++	.vidioc_g_parm			= unicam_g_parm,
++	.vidioc_s_parm			= unicam_s_parm,
++
++	.vidioc_s_dv_timings		= unicam_s_dv_timings,
++	.vidioc_g_dv_timings		= unicam_g_dv_timings,
++	.vidioc_query_dv_timings	= unicam_query_dv_timings,
++	.vidioc_enum_dv_timings		= unicam_enum_dv_timings,
++	.vidioc_dv_timings_cap		= unicam_dv_timings_cap,
++
++	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
++	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
++	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
++	.vidioc_querybuf		= vb2_ioctl_querybuf,
++	.vidioc_qbuf			= vb2_ioctl_qbuf,
++	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
++	.vidioc_expbuf			= vb2_ioctl_expbuf,
++	.vidioc_streamon		= vb2_ioctl_streamon,
++	.vidioc_streamoff		= vb2_ioctl_streamoff,
++
++	.vidioc_log_status		= unicam_log_status,
++	.vidioc_subscribe_event		= unicam_subscribe_event,
++	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
++};
++
++static int
++unicam_async_bound(struct v4l2_async_notifier *notifier,
++		   struct v4l2_subdev *subdev,
++		   struct v4l2_async_subdev *asd)
++{
++	struct unicam_device *unicam = to_unicam_device(notifier->v4l2_dev);
++
++	if (unicam->sensor) {
++		unicam_info(unicam, "Rejecting subdev %s (Already set!!)",
++			    subdev->name);
++		return 0;
++	}
++
++	unicam->sensor = subdev;
++	unicam_dbg(1, unicam, "Using sensor %s for capture\n", subdev->name);
++
++	return 0;
++}
++
++static void unicam_release(struct kref *kref)
++{
++	struct unicam_device *unicam =
++		container_of(kref, struct unicam_device, kref);
++
++	v4l2_ctrl_handler_free(&unicam->ctrl_handler);
++	media_device_cleanup(&unicam->mdev);
++
++	if (unicam->sensor_config)
++		v4l2_subdev_free_pad_config(unicam->sensor_config);
++
++	kfree(unicam);
++}
++
++static void unicam_put(struct unicam_device *unicam)
++{
++	kref_put(&unicam->kref, unicam_release);
++}
++
++static void unicam_get(struct unicam_device *unicam)
++{
++	kref_get(&unicam->kref);
++}
++
++static void unicam_node_release(struct video_device *vdev)
++{
++	struct unicam_node *node = video_get_drvdata(vdev);
++
++	unicam_put(node->dev);
++}
++
++static int register_node(struct unicam_device *unicam, struct unicam_node *node,
++			 enum v4l2_buf_type type, int pad_id)
++{
++	struct video_device *vdev;
++	struct vb2_queue *q;
++	struct v4l2_mbus_framefmt mbus_fmt = {0};
++	const struct unicam_fmt *fmt;
++	int ret;
++
++	if (pad_id == IMAGE_PAD) {
++		ret = __subdev_get_format(unicam, &mbus_fmt, pad_id);
++		if (ret) {
++			unicam_err(unicam, "Failed to get_format - ret %d\n",
++				   ret);
++			return ret;
++		}
++
++		fmt = find_format_by_code(mbus_fmt.code);
++		if (!fmt) {
++			/*
++			 * Find the first format that the sensor and unicam both
++			 * support
++			 */
++			fmt = get_first_supported_format(unicam);
++
++			if (!fmt)
++				/* No compatible formats */
++				return -EINVAL;
++
++			mbus_fmt.code = fmt->code;
++			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
++			if (ret)
++				return -EINVAL;
++		}
++		if (mbus_fmt.field != V4L2_FIELD_NONE) {
++			/* Interlaced not supported - disable it now. */
++			mbus_fmt.field = V4L2_FIELD_NONE;
++			ret = __subdev_set_format(unicam, &mbus_fmt, pad_id);
++			if (ret)
++				return -EINVAL;
++		}
++
++		node->v_fmt.fmt.pix.pixelformat = fmt->fourcc ? fmt->fourcc
++						: fmt->repacked_fourcc;
++	} else {
++		/* Fix this node format as embedded data. */
++		fmt = find_format_by_code(MEDIA_BUS_FMT_SENSOR_DATA);
++		node->v_fmt.fmt.meta.dataformat = fmt->fourcc;
++	}
++
++	node->dev = unicam;
++	node->pad_id = pad_id;
++	node->fmt = fmt;
++
++	/* Read current subdev format */
++	unicam_reset_format(node);
++
++	if (v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
++		v4l2_std_id tvnorms;
++
++		if (WARN_ON(!v4l2_subdev_has_op(unicam->sensor, video,
++						g_tvnorms)))
++			/*
++			 * Subdevice should not advertise s_std but not
++			 * g_tvnorms
++			 */
++			return -EINVAL;
++
++		ret = v4l2_subdev_call(unicam->sensor, video,
++				       g_tvnorms, &tvnorms);
++		if (WARN_ON(ret))
++			return -EINVAL;
++		node->video_dev.tvnorms |= tvnorms;
++	}
++
++	spin_lock_init(&node->dma_queue_lock);
++	mutex_init(&node->lock);
++
++	vdev = &node->video_dev;
++	if (pad_id == IMAGE_PAD) {
++		/* Add controls from the subdevice */
++		ret = v4l2_ctrl_add_handler(&unicam->ctrl_handler,
++					    unicam->sensor->ctrl_handler, NULL,
++					    true);
++		if (ret < 0)
++			return ret;
++
++		/*
++		 * If the sensor subdevice has any controls, associate the node
++		 *  with the ctrl handler to allow access from userland.
++		 */
++		if (!list_empty(&unicam->ctrl_handler.ctrls))
++			vdev->ctrl_handler = &unicam->ctrl_handler;
++	}
++
++	q = &node->buffer_queue;
++	q->type = type;
++	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
++	q->drv_priv = node;
++	q->ops = &unicam_video_qops;
++	q->mem_ops = &vb2_dma_contig_memops;
++	q->buf_struct_size = sizeof(struct unicam_buffer);
++	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
++	q->lock = &node->lock;
++	q->min_buffers_needed = 2;
++	q->dev = &unicam->pdev->dev;
++
++	ret = vb2_queue_init(q);
++	if (ret) {
++		unicam_err(unicam, "vb2_queue_init() failed\n");
++		return ret;
++	}
++
++	INIT_LIST_HEAD(&node->dma_queue);
++
++	vdev->release = unicam_node_release;
++	vdev->fops = &unicam_fops;
++	vdev->ioctl_ops = &unicam_ioctl_ops;
++	vdev->v4l2_dev = &unicam->v4l2_dev;
++	vdev->vfl_dir = VFL_DIR_RX;
++	vdev->queue = q;
++	vdev->lock = &node->lock;
++	vdev->device_caps = (pad_id == IMAGE_PAD) ?
++			    (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING) :
++			    (V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING);
++
++	/* Define the device names */
++	snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME,
++		 pad_id == IMAGE_PAD ? "image" : "embedded");
++
++	video_set_drvdata(vdev, node);
++	if (pad_id == IMAGE_PAD)
++		vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT;
++	node->pad.flags = MEDIA_PAD_FL_SINK;
++	media_entity_pads_init(&vdev->entity, 1, &node->pad);
++
++	node->dummy_buf_cpu_addr = dma_alloc_coherent(&unicam->pdev->dev,
++						      DUMMY_BUF_SIZE,
++						      &node->dummy_buf_dma_addr,
++						      GFP_KERNEL);
++	if (!node->dummy_buf_cpu_addr) {
++		unicam_err(unicam, "Unable to allocate dummy buffer.\n");
++		return -ENOMEM;
++	}
++
++	if (pad_id == METADATA_PAD) {
++		v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
++		v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
++		v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
++	}
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_STD);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUMSTD);
++	}
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, querystd))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERYSTD);
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_dv_timings)) {
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_EDID);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_EDID);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_DV_TIMINGS_CAP);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_DV_TIMINGS);
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_QUERY_DV_TIMINGS);
++	}
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_interval))
++		v4l2_disable_ioctl(&node->video_dev,
++				   VIDIOC_ENUM_FRAMEINTERVALS);
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, g_frame_interval))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_PARM);
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, video, s_frame_interval))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_PARM);
++
++	if (pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, enum_frame_size))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_ENUM_FRAMESIZES);
++
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, set_selection))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_SELECTION);
++
++	if (node->pad_id == METADATA_PAD ||
++	    !v4l2_subdev_has_op(unicam->sensor, pad, get_selection))
++		v4l2_disable_ioctl(&node->video_dev, VIDIOC_G_SELECTION);
++
++	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
++	if (ret) {
++		unicam_err(unicam, "Unable to register video device %s\n",
++			   vdev->name);
++		return ret;
++	}
++
++	/*
++	 * Acquire a reference to unicam, which will be released when the video
++	 * device will be unregistered and userspace will have closed all open
++	 * file handles.
++	 */
++	unicam_get(unicam);
++	node->registered = true;
++
++	if (pad_id != METADATA_PAD || unicam->sensor_embedded_data) {
++		ret = media_create_pad_link(&unicam->sensor->entity, pad_id,
++					    &node->video_dev.entity, 0,
++					    MEDIA_LNK_FL_ENABLED |
++					    MEDIA_LNK_FL_IMMUTABLE);
++		if (ret)
++			unicam_err(unicam, "Unable to create pad link for %s\n",
++				   vdev->name);
++	}
++
++	return ret;
++}
++
++static void unregister_nodes(struct unicam_device *unicam)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(unicam->node); i++) {
++		struct unicam_node *node = &unicam->node[i];
++
++		if (node->dummy_buf_cpu_addr) {
++			dma_free_coherent(&unicam->pdev->dev, DUMMY_BUF_SIZE,
++					  node->dummy_buf_cpu_addr,
++					  node->dummy_buf_dma_addr);
++		}
++
++		if (node->registered) {
++			node->registered = false;
++			video_unregister_device(&node->video_dev);
++		}
++	}
++}
++
++static int unicam_probe_complete(struct unicam_device *unicam)
++{
++	int ret;
++
++	unicam->v4l2_dev.notify = unicam_notify;
++
++	unicam->sensor_config = v4l2_subdev_alloc_pad_config(unicam->sensor);
++	if (!unicam->sensor_config)
++		return -ENOMEM;
++
++	unicam->sensor_embedded_data = (unicam->sensor->entity.num_pads >= 2);
++
++	ret = register_node(unicam, &unicam->node[IMAGE_PAD],
++			    V4L2_BUF_TYPE_VIDEO_CAPTURE, IMAGE_PAD);
++	if (ret) {
++		unicam_err(unicam, "Unable to register image video device.\n");
++		goto unregister;
++	}
++
++	ret = register_node(unicam, &unicam->node[METADATA_PAD],
++			    V4L2_BUF_TYPE_META_CAPTURE, METADATA_PAD);
++	if (ret) {
++		unicam_err(unicam, "Unable to register metadata video device.\n");
++		goto unregister;
++	}
++
++	ret = v4l2_device_register_ro_subdev_nodes(&unicam->v4l2_dev);
++	if (ret) {
++		unicam_err(unicam, "Unable to register subdev nodes.\n");
++		goto unregister;
++	}
++
++	/*
++	 * Release the initial reference, all references are now owned by the
++	 * video devices.
++	 */
++	unicam_put(unicam);
++	return 0;
++
++unregister:
++	unregister_nodes(unicam);
++	unicam_put(unicam);
++
++	return ret;
++}
++
++static int unicam_async_complete(struct v4l2_async_notifier *notifier)
++{
++	struct unicam_device *unicam = to_unicam_device(notifier->v4l2_dev);
++
++	return unicam_probe_complete(unicam);
++}
++
++static const struct v4l2_async_notifier_operations unicam_async_ops = {
++	.bound = unicam_async_bound,
++	.complete = unicam_async_complete,
++};
++
++static int of_unicam_connect_subdevs(struct unicam_device *dev)
++{
++	struct platform_device *pdev = dev->pdev;
++	struct v4l2_fwnode_endpoint ep = { 0 };
++	struct device_node *ep_node;
++	struct device_node *sensor_node;
++	unsigned int lane;
++	int ret = -EINVAL;
++
++	if (of_property_read_u32(pdev->dev.of_node, "brcm,num-data-lanes",
++				 &dev->max_data_lanes) < 0) {
++		unicam_err(dev, "number of data lanes not set\n");
++		return -EINVAL;
++	}
++
++	/* Get the local endpoint and remote device. */
++	ep_node = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
++	if (!ep_node) {
++		unicam_dbg(3, dev, "can't get next endpoint\n");
++		return -EINVAL;
++	}
++
++	unicam_dbg(3, dev, "ep_node is %pOF\n", ep_node);
++
++	sensor_node = of_graph_get_remote_port_parent(ep_node);
++	if (!sensor_node) {
++		unicam_dbg(3, dev, "can't get remote parent\n");
++		goto cleanup_exit;
++	}
++
++	unicam_dbg(1, dev, "found subdevice %pOF\n", sensor_node);
++
++	/* Parse the local endpoint and validate its configuration. */
++	v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep_node), &ep);
++
++	unicam_dbg(3, dev, "parsed local endpoint, bus_type %u\n",
++		   ep.bus_type);
++
++	dev->bus_type = ep.bus_type;
++
++	switch (ep.bus_type) {
++	case V4L2_MBUS_CSI2_DPHY:
++		switch (ep.bus.mipi_csi2.num_data_lanes) {
++		case 1:
++		case 2:
++		case 4:
++			break;
++
++		default:
++			unicam_err(dev, "subdevice %pOF: %u data lanes not supported\n",
++				   sensor_node,
++				   ep.bus.mipi_csi2.num_data_lanes);
++			goto cleanup_exit;
++		}
++
++		for (lane = 0; lane < ep.bus.mipi_csi2.num_data_lanes; lane++) {
++			if (ep.bus.mipi_csi2.data_lanes[lane] != lane + 1) {
++				unicam_err(dev, "subdevice %pOF: data lanes reordering not supported\n",
++					   sensor_node);
++				goto cleanup_exit;
++			}
++		}
++
++		if (ep.bus.mipi_csi2.num_data_lanes > dev->max_data_lanes) {
++			unicam_err(dev, "subdevice requires %u data lanes when %u are supported\n",
++				   ep.bus.mipi_csi2.num_data_lanes,
++				   dev->max_data_lanes);
++		}
++
++		dev->max_data_lanes = ep.bus.mipi_csi2.num_data_lanes;
++		dev->bus_flags = ep.bus.mipi_csi2.flags;
++
++		break;
++
++	case V4L2_MBUS_CCP2:
++		if (ep.bus.mipi_csi1.clock_lane != 0 ||
++		    ep.bus.mipi_csi1.data_lane != 1) {
++			unicam_err(dev, "subdevice %pOF: unsupported lanes configuration\n",
++				   sensor_node);
++			goto cleanup_exit;
++		}
++
++		dev->max_data_lanes = 1;
++		dev->bus_flags = ep.bus.mipi_csi1.strobe;
++		break;
++
++	default:
++		/* Unsupported bus type */
++		unicam_err(dev, "subdevice %pOF: unsupported bus type %u\n",
++			   sensor_node, ep.bus_type);
++		goto cleanup_exit;
++	}
++
++	unicam_dbg(3, dev, "subdevice %pOF: %s bus, %u data lanes, flags=0x%08x\n",
++		   sensor_node,
++		   dev->bus_type == V4L2_MBUS_CSI2_DPHY ? "CSI-2" : "CCP2",
++		   dev->max_data_lanes, dev->bus_flags);
++
++	/* Initialize and register the async notifier. */
++	v4l2_async_notifier_init(&dev->notifier);
++	dev->notifier.ops = &unicam_async_ops;
++
++	dev->asd.match_type = V4L2_ASYNC_MATCH_FWNODE;
++	dev->asd.match.fwnode = of_fwnode_handle(sensor_node);
++	ret = v4l2_async_notifier_add_subdev(&dev->notifier, &dev->asd);
++	if (ret) {
++		unicam_err(dev, "Error adding subdevice: %d\n", ret);
++		goto cleanup_exit;
++	}
++
++	ret = v4l2_async_notifier_register(&dev->v4l2_dev, &dev->notifier);
++	if (ret) {
++		unicam_err(dev, "Error registering async notifier: %d\n", ret);
++		ret = -EINVAL;
++	}
++
++cleanup_exit:
++	of_node_put(sensor_node);
++	of_node_put(ep_node);
++
++	return ret;
++}
++
++static int unicam_probe(struct platform_device *pdev)
++{
++	struct unicam_device *unicam;
++	int ret;
++
++	unicam = kzalloc(sizeof(*unicam), GFP_KERNEL);
++	if (!unicam)
++		return -ENOMEM;
++
++	kref_init(&unicam->kref);
++	unicam->pdev = pdev;
++
++	unicam->base = devm_platform_ioremap_resource(pdev, 0);
++	if (IS_ERR(unicam->base)) {
++		unicam_err(unicam, "Failed to get main io block\n");
++		ret = PTR_ERR(unicam->base);
++		goto err_unicam_put;
++	}
++
++	unicam->clk_gate_base = devm_platform_ioremap_resource(pdev, 1);
++	if (IS_ERR(unicam->clk_gate_base)) {
++		unicam_err(unicam, "Failed to get 2nd io block\n");
++		ret = PTR_ERR(unicam->clk_gate_base);
++		goto err_unicam_put;
++	}
++
++	unicam->clock = devm_clk_get(&pdev->dev, "lp");
++	if (IS_ERR(unicam->clock)) {
++		unicam_err(unicam, "Failed to get clock\n");
++		ret = PTR_ERR(unicam->clock);
++		goto err_unicam_put;
++	}
++
++	ret = platform_get_irq(pdev, 0);
++	if (ret <= 0) {
++		dev_err(&pdev->dev, "No IRQ resource\n");
++		ret = -EINVAL;
++		goto err_unicam_put;
++	}
++
++	ret = devm_request_irq(&pdev->dev, ret, unicam_isr, 0,
++			       "unicam_capture0", unicam);
++	if (ret) {
++		dev_err(&pdev->dev, "Unable to request interrupt\n");
++		ret = -EINVAL;
++		goto err_unicam_put;
++	}
++
++	unicam->mdev.dev = &pdev->dev;
++	strscpy(unicam->mdev.model, UNICAM_MODULE_NAME,
++		sizeof(unicam->mdev.model));
++	strscpy(unicam->mdev.serial, "", sizeof(unicam->mdev.serial));
++	snprintf(unicam->mdev.bus_info, sizeof(unicam->mdev.bus_info),
++		 "platform:%s", dev_name(&pdev->dev));
++	unicam->mdev.hw_revision = 0;
++
++	media_device_init(&unicam->mdev);
++
++	unicam->v4l2_dev.mdev = &unicam->mdev;
++
++	ret = v4l2_device_register(&pdev->dev, &unicam->v4l2_dev);
++	if (ret) {
++		unicam_err(unicam,
++			   "Unable to register v4l2 device.\n");
++		goto err_unicam_put;
++	}
++
++	ret = media_device_register(&unicam->mdev);
++	if (ret < 0) {
++		unicam_err(unicam,
++			   "Unable to register media-controller device.\n");
++		goto err_v4l2_unregister;
++	}
++
++	/* Reserve space for the controls */
++	ret = v4l2_ctrl_handler_init(&unicam->ctrl_handler, 16);
++	if (ret < 0)
++		goto err_media_unregister;
++
++	/* set the driver data in platform device */
++	platform_set_drvdata(pdev, unicam);
++
++	ret = of_unicam_connect_subdevs(unicam);
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to connect subdevs\n");
++		goto err_media_unregister;
++	}
++
++	/* Enable the block power domain */
++	pm_runtime_enable(&pdev->dev);
++
++	return 0;
++
++err_media_unregister:
++	media_device_unregister(&unicam->mdev);
++err_v4l2_unregister:
++	v4l2_device_unregister(&unicam->v4l2_dev);
++err_unicam_put:
++	unicam_put(unicam);
++
++	return ret;
++}
++
++static int unicam_remove(struct platform_device *pdev)
++{
++	struct unicam_device *unicam = platform_get_drvdata(pdev);
++
++	unicam_dbg(2, unicam, "%s\n", __func__);
++
++	v4l2_async_notifier_unregister(&unicam->notifier);
++	v4l2_device_unregister(&unicam->v4l2_dev);
++	media_device_unregister(&unicam->mdev);
++	unregister_nodes(unicam);
++
++	pm_runtime_disable(&pdev->dev);
++
++	return 0;
++}
++
++static const struct of_device_id unicam_of_match[] = {
++	{ .compatible = "brcm,bcm2835-unicam", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, unicam_of_match);
++
++static struct platform_driver unicam_driver = {
++	.probe		= unicam_probe,
++	.remove		= unicam_remove,
++	.driver = {
++		.name	= UNICAM_MODULE_NAME,
++		.of_match_table = of_match_ptr(unicam_of_match),
++	},
++};
++
++module_platform_driver(unicam_driver);
++
++MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.com>");
++MODULE_DESCRIPTION("BCM2835 Unicam driver");
++MODULE_LICENSE("GPL");
++MODULE_VERSION(UNICAM_VERSION);
+--- /dev/null
++++ b/drivers/media/platform/bcm2835/vc4-regs-unicam.h
+@@ -0,0 +1,253 @@
++/* SPDX-License-Identifier: GPL-2.0-only */
++
++/*
++ * Copyright (C) 2017-2020 Raspberry Pi Trading.
++ * Dave Stevenson <dave.stevenson@raspberrypi.com>
++ */
++
++#ifndef VC4_REGS_UNICAM_H
++#define VC4_REGS_UNICAM_H
++
++/*
++ * The following values are taken from files found within the code drop
++ * made by Broadcom for the BCM21553 Graphics Driver, predominantly in
++ * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h.
++ * They have been modified to be only the register offset.
++ */
++#define UNICAM_CTRL	0x000
++#define UNICAM_STA	0x004
++#define UNICAM_ANA	0x008
++#define UNICAM_PRI	0x00c
++#define UNICAM_CLK	0x010
++#define UNICAM_CLT	0x014
++#define UNICAM_DAT0	0x018
++#define UNICAM_DAT1	0x01c
++#define UNICAM_DAT2	0x020
++#define UNICAM_DAT3	0x024
++#define UNICAM_DLT	0x028
++#define UNICAM_CMP0	0x02c
++#define UNICAM_CMP1	0x030
++#define UNICAM_CAP0	0x034
++#define UNICAM_CAP1	0x038
++#define UNICAM_ICTL	0x100
++#define UNICAM_ISTA	0x104
++#define UNICAM_IDI0	0x108
++#define UNICAM_IPIPE	0x10c
++#define UNICAM_IBSA0	0x110
++#define UNICAM_IBEA0	0x114
++#define UNICAM_IBLS	0x118
++#define UNICAM_IBWP	0x11c
++#define UNICAM_IHWIN	0x120
++#define UNICAM_IHSTA	0x124
++#define UNICAM_IVWIN	0x128
++#define UNICAM_IVSTA	0x12c
++#define UNICAM_ICC	0x130
++#define UNICAM_ICS	0x134
++#define UNICAM_IDC	0x138
++#define UNICAM_IDPO	0x13c
++#define UNICAM_IDCA	0x140
++#define UNICAM_IDCD	0x144
++#define UNICAM_IDS	0x148
++#define UNICAM_DCS	0x200
++#define UNICAM_DBSA0	0x204
++#define UNICAM_DBEA0	0x208
++#define UNICAM_DBWP	0x20c
++#define UNICAM_DBCTL	0x300
++#define UNICAM_IBSA1	0x304
++#define UNICAM_IBEA1	0x308
++#define UNICAM_IDI1	0x30c
++#define UNICAM_DBSA1	0x310
++#define UNICAM_DBEA1	0x314
++#define UNICAM_MISC	0x400
++
++/*
++ * The following bitmasks are from the kernel released by Broadcom
++ * for Android - https://android.googlesource.com/kernel/bcm/
++ * The Rhea, Hawaii, and Java chips all contain the same VideoCore4
++ * Unicam block as BCM2835, as defined in eg
++ * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar.
++ * Values reworked to use the kernel BIT and GENMASK macros.
++ *
++ * Some of the bit mnenomics have been amended to match the datasheet.
++ */
++/* UNICAM_CTRL Register */
++#define UNICAM_CPE		BIT(0)
++#define UNICAM_MEM		BIT(1)
++#define UNICAM_CPR		BIT(2)
++#define UNICAM_CPM_MASK		GENMASK(3, 3)
++#define UNICAM_CPM_CSI2		0
++#define UNICAM_CPM_CCP2		1
++#define UNICAM_SOE		BIT(4)
++#define UNICAM_DCM_MASK		GENMASK(5, 5)
++#define UNICAM_DCM_STROBE	0
++#define UNICAM_DCM_DATA		1
++#define UNICAM_SLS		BIT(6)
++#define UNICAM_PFT_MASK		GENMASK(11, 8)
++#define UNICAM_OET_MASK		GENMASK(20, 12)
++
++/* UNICAM_STA Register */
++#define UNICAM_SYN		BIT(0)
++#define UNICAM_CS		BIT(1)
++#define UNICAM_SBE		BIT(2)
++#define UNICAM_PBE		BIT(3)
++#define UNICAM_HOE		BIT(4)
++#define UNICAM_PLE		BIT(5)
++#define UNICAM_SSC		BIT(6)
++#define UNICAM_CRCE		BIT(7)
++#define UNICAM_OES		BIT(8)
++#define UNICAM_IFO		BIT(9)
++#define UNICAM_OFO		BIT(10)
++#define UNICAM_BFO		BIT(11)
++#define UNICAM_DL		BIT(12)
++#define UNICAM_PS		BIT(13)
++#define UNICAM_IS		BIT(14)
++#define UNICAM_PI0		BIT(15)
++#define UNICAM_PI1		BIT(16)
++#define UNICAM_FSI_S		BIT(17)
++#define UNICAM_FEI_S		BIT(18)
++#define UNICAM_LCI_S		BIT(19)
++#define UNICAM_BUF0_RDY		BIT(20)
++#define UNICAM_BUF0_NO		BIT(21)
++#define UNICAM_BUF1_RDY		BIT(22)
++#define UNICAM_BUF1_NO		BIT(23)
++#define UNICAM_DI		BIT(24)
++
++#define UNICAM_STA_MASK_ALL \
++		(UNICAM_DL + \
++		UNICAM_SBE + \
++		UNICAM_PBE + \
++		UNICAM_HOE + \
++		UNICAM_PLE + \
++		UNICAM_SSC + \
++		UNICAM_CRCE + \
++		UNICAM_IFO + \
++		UNICAM_OFO + \
++		UNICAM_PS + \
++		UNICAM_PI0 + \
++		UNICAM_PI1)
++
++/* UNICAM_ANA Register */
++#define UNICAM_APD		BIT(0)
++#define UNICAM_BPD		BIT(1)
++#define UNICAM_AR		BIT(2)
++#define UNICAM_DDL		BIT(3)
++#define UNICAM_CTATADJ_MASK	GENMASK(7, 4)
++#define UNICAM_PTATADJ_MASK	GENMASK(11, 8)
++
++/* UNICAM_PRI Register */
++#define UNICAM_PE		BIT(0)
++#define UNICAM_PT_MASK		GENMASK(2, 1)
++#define UNICAM_NP_MASK		GENMASK(7, 4)
++#define UNICAM_PP_MASK		GENMASK(11, 8)
++#define UNICAM_BS_MASK		GENMASK(15, 12)
++#define UNICAM_BL_MASK		GENMASK(17, 16)
++
++/* UNICAM_CLK Register */
++#define UNICAM_CLE		BIT(0)
++#define UNICAM_CLPD		BIT(1)
++#define UNICAM_CLLPE		BIT(2)
++#define UNICAM_CLHSE		BIT(3)
++#define UNICAM_CLTRE		BIT(4)
++#define UNICAM_CLAC_MASK	GENMASK(8, 5)
++#define UNICAM_CLSTE		BIT(29)
++
++/* UNICAM_CLT Register */
++#define UNICAM_CLT1_MASK	GENMASK(7, 0)
++#define UNICAM_CLT2_MASK	GENMASK(15, 8)
++
++/* UNICAM_DATn Registers */
++#define UNICAM_DLE		BIT(0)
++#define UNICAM_DLPD		BIT(1)
++#define UNICAM_DLLPE		BIT(2)
++#define UNICAM_DLHSE		BIT(3)
++#define UNICAM_DLTRE		BIT(4)
++#define UNICAM_DLSM		BIT(5)
++#define UNICAM_DLFO		BIT(28)
++#define UNICAM_DLSTE		BIT(29)
++
++#define UNICAM_DAT_MASK_ALL (UNICAM_DLSTE + UNICAM_DLFO)
++
++/* UNICAM_DLT Register */
++#define UNICAM_DLT1_MASK	GENMASK(7, 0)
++#define UNICAM_DLT2_MASK	GENMASK(15, 8)
++#define UNICAM_DLT3_MASK	GENMASK(23, 16)
++
++/* UNICAM_ICTL Register */
++#define UNICAM_FSIE		BIT(0)
++#define UNICAM_FEIE		BIT(1)
++#define UNICAM_IBOB		BIT(2)
++#define UNICAM_FCM		BIT(3)
++#define UNICAM_TFC		BIT(4)
++#define UNICAM_LIP_MASK		GENMASK(6, 5)
++#define UNICAM_LCIE_MASK	GENMASK(28, 16)
++
++/* UNICAM_IDI0/1 Register */
++#define UNICAM_ID0_MASK		GENMASK(7, 0)
++#define UNICAM_ID1_MASK		GENMASK(15, 8)
++#define UNICAM_ID2_MASK		GENMASK(23, 16)
++#define UNICAM_ID3_MASK		GENMASK(31, 24)
++
++/* UNICAM_ISTA Register */
++#define UNICAM_FSI		BIT(0)
++#define UNICAM_FEI		BIT(1)
++#define UNICAM_LCI		BIT(2)
++
++#define UNICAM_ISTA_MASK_ALL (UNICAM_FSI + UNICAM_FEI + UNICAM_LCI)
++
++/* UNICAM_IPIPE Register */
++#define UNICAM_PUM_MASK		GENMASK(2, 0)
++		/* Unpacking modes */
++		#define UNICAM_PUM_NONE		0
++		#define UNICAM_PUM_UNPACK6	1
++		#define UNICAM_PUM_UNPACK7	2
++		#define UNICAM_PUM_UNPACK8	3
++		#define UNICAM_PUM_UNPACK10	4
++		#define UNICAM_PUM_UNPACK12	5
++		#define UNICAM_PUM_UNPACK14	6
++		#define UNICAM_PUM_UNPACK16	7
++#define UNICAM_DDM_MASK		GENMASK(6, 3)
++#define UNICAM_PPM_MASK		GENMASK(9, 7)
++		/* Packing modes */
++		#define UNICAM_PPM_NONE		0
++		#define UNICAM_PPM_PACK8	1
++		#define UNICAM_PPM_PACK10	2
++		#define UNICAM_PPM_PACK12	3
++		#define UNICAM_PPM_PACK14	4
++		#define UNICAM_PPM_PACK16	5
++#define UNICAM_DEM_MASK		GENMASK(11, 10)
++#define UNICAM_DEBL_MASK	GENMASK(14, 12)
++#define UNICAM_ICM_MASK		GENMASK(16, 15)
++#define UNICAM_IDM_MASK		GENMASK(17, 17)
++
++/* UNICAM_ICC Register */
++#define UNICAM_ICFL_MASK	GENMASK(4, 0)
++#define UNICAM_ICFH_MASK	GENMASK(9, 5)
++#define UNICAM_ICST_MASK	GENMASK(12, 10)
++#define UNICAM_ICLT_MASK	GENMASK(15, 13)
++#define UNICAM_ICLL_MASK	GENMASK(31, 16)
++
++/* UNICAM_DCS Register */
++#define UNICAM_DIE		BIT(0)
++#define UNICAM_DIM		BIT(1)
++#define UNICAM_DBOB		BIT(3)
++#define UNICAM_FDE		BIT(4)
++#define UNICAM_LDP		BIT(5)
++#define UNICAM_EDL_MASK		GENMASK(15, 8)
++
++/* UNICAM_DBCTL Register */
++#define UNICAM_DBEN		BIT(0)
++#define UNICAM_BUF0_IE		BIT(1)
++#define UNICAM_BUF1_IE		BIT(2)
++
++/* UNICAM_CMP[0,1] register */
++#define UNICAM_PCE		BIT(31)
++#define UNICAM_GI		BIT(9)
++#define UNICAM_CPH		BIT(8)
++#define UNICAM_PCVC_MASK	GENMASK(7, 6)
++#define UNICAM_PCDT_MASK	GENMASK(5, 0)
++
++/* UNICAM_MISC register */
++#define UNICAM_FL0		BIT(6)
++#define UNICAM_FL1		BIT(9)
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0265-media-bcm2835-unicam-Add-support-for-get_mbus_config.patch b/target/linux/bcm27xx/patches-5.10/950-0265-media-bcm2835-unicam-Add-support-for-get_mbus_config.patch
new file mode 100644
index 0000000000..7d871240a2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0265-media-bcm2835-unicam-Add-support-for-get_mbus_config.patch
@@ -0,0 +1,56 @@
+From 80a9aa25edc6144c3d6d3aaf9f731240d8868714 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 23 Jun 2020 14:32:51 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for
+ get_mbus_config to set num lanes
+
+Use the get_mbus_config pad subdev call to allow a source to use
+fewer than the number of CSI2 lanes defined in device tree.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 31 ++++++++++++++++---
+ 1 file changed, 27 insertions(+), 4 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1639,12 +1639,35 @@ static int unicam_start_streaming(struct
+ 		goto err_streaming;
+ 	}
+ 
+-	/*
+-	 * TODO: Retrieve the number of active data lanes from the connected
+-	 * subdevice.
+-	 */
+ 	dev->active_data_lanes = dev->max_data_lanes;
+ 
++	if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
++		struct v4l2_mbus_config mbus_config = { 0 };
++
++		ret = v4l2_subdev_call(dev->sensor, pad, get_mbus_config,
++				       0, &mbus_config);
++		if (ret < 0 && ret != -ENOIOCTLCMD) {
++			unicam_dbg(3, dev, "g_mbus_config failed\n");
++			goto err_pm_put;
++		}
++
++		dev->active_data_lanes =
++			(mbus_config.flags & V4L2_MBUS_CSI2_LANE_MASK) >>
++					__ffs(V4L2_MBUS_CSI2_LANE_MASK);
++		if (!dev->active_data_lanes)
++			dev->active_data_lanes = dev->max_data_lanes;
++		if (dev->active_data_lanes > dev->max_data_lanes) {
++			unicam_err(dev, "Device has requested %u data lanes, which is >%u configured in DT\n",
++				   dev->active_data_lanes,
++				   dev->max_data_lanes);
++			ret = -EINVAL;
++			goto err_pm_put;
++		}
++	}
++
++	unicam_dbg(1, dev, "Running with %u data lanes\n",
++		   dev->active_data_lanes);
++
+ 	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
+ 	if (ret) {
+ 		unicam_err(dev, "failed to set up clock\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0266-media-bcm2835-unicam-Avoid-gcc-warning-over-0-on-end.patch b/target/linux/bcm27xx/patches-5.10/950-0266-media-bcm2835-unicam-Avoid-gcc-warning-over-0-on-end.patch
new file mode 100644
index 0000000000..1980fda68d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0266-media-bcm2835-unicam-Avoid-gcc-warning-over-0-on-end.patch
@@ -0,0 +1,27 @@
+From 03a0144820fa1e5b832b8086a82d99b37b7152a1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 26 Jun 2020 15:53:44 +0100
+Subject: [PATCH] media: bcm2835-unicam: Avoid gcc warning over {0} on
+ endpoint
+
+Older gcc versions object to = { 0 } initialisation if the first
+elemtn in the structure is a substructure.
+
+Use = { } to avoid this compiler warning.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2586,7 +2586,7 @@ static const struct v4l2_async_notifier_
+ static int of_unicam_connect_subdevs(struct unicam_device *dev)
+ {
+ 	struct platform_device *pdev = dev->pdev;
+-	struct v4l2_fwnode_endpoint ep = { 0 };
++	struct v4l2_fwnode_endpoint ep = { };
+ 	struct device_node *ep_node;
+ 	struct device_node *sensor_node;
+ 	unsigned int lane;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0267-media-i2c-imx290-set-the-format-before-VIDIOC_SUBDEV.patch b/target/linux/bcm27xx/patches-5.10/950-0267-media-i2c-imx290-set-the-format-before-VIDIOC_SUBDEV.patch
new file mode 100644
index 0000000000..741d9be947
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0267-media-i2c-imx290-set-the-format-before-VIDIOC_SUBDEV.patch
@@ -0,0 +1,40 @@
+From 79d340a54b121610b1d2c5061e8fd1991c6bb1ab Mon Sep 17 00:00:00 2001
+From: Andrey Konovalov <andrey.konovalov@linaro.org>
+Date: Fri, 12 Jun 2020 15:53:46 +0200
+Subject: [PATCH] media: i2c: imx290: set the format before
+ VIDIOC_SUBDEV_G_FMT is called
+
+Commit d46cfdc86c30d5ec768924f0b1e2683c8d20b671 upstream.
+
+With the current driver 'media-ctl -p' issued right after the imx290 driver
+is loaded prints:
+pad0: Source
+             [fmt:unknown/0x0]
+
+The format value of zero is due to the current_format field of the imx290
+struct not being initialized yet.
+
+As imx290_entity_init_cfg() calls imx290_set_fmt(), the current_mode field
+is also initialized, so the line which set current_mode to a default value
+in driver's probe() function is no longer needed.
+
+Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
+Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
+Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
+---
+ drivers/media/i2c/imx290.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1091,6 +1091,9 @@ static int imx290_probe(struct i2c_clien
+ 		goto free_ctrl;
+ 	}
+ 
++	/* Initialize the frame format (this also sets imx290->current_mode) */
++	imx290_entity_init_cfg(&imx290->sd, NULL);
++
+ 	ret = v4l2_async_register_subdev(&imx290->sd);
+ 	if (ret < 0) {
+ 		dev_err(dev, "Could not register v4l2 device\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0268-media-i2c-imx290-Add-support-for-74.25MHz-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0268-media-i2c-imx290-Add-support-for-74.25MHz-clock.patch
new file mode 100644
index 0000000000..04fd46ccee
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0268-media-i2c-imx290-Add-support-for-74.25MHz-clock.patch
@@ -0,0 +1,264 @@
+From 4af1d6fb5bdf21e25a0e3819eb1184d33c4b192e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 08:28:51 +0100
+Subject: [PATCH] media: i2c: imx290: Add support for 74.25MHz clock
+
+The existing driver only supported a clock of 37.125MHz, but the
+sensor also supports 74.25MHz.
+
+Add the relevant register modifications to support this alternate
+clock frequency.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 119 ++++++++++++++++++++++++++++++-------
+ 1 file changed, 97 insertions(+), 22 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1,6 +1,10 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /*
+- * Sony IMX290 CMOS Image Sensor Driver
++ * Sony IMX290/327 CMOS Image Sensor Driver
++ *
++ * The IMX290 and IMX327 are very similar 1920x1080 1/2.8 CMOS image sensors.
++ * IMX327 can support up to 60fps, whilst IMX290 support up to 120fps (only
++ * 10bit and when connected over 4 CSI-2 lanes).
+  *
+  * Copyright (C) 2019 FRAMOS GmbH.
+  *
+@@ -22,6 +26,11 @@
+ #include <media/v4l2-fwnode.h>
+ #include <media/v4l2-subdev.h>
+ 
++enum imx290_clk_index {
++	CLK_37_125,
++	CLK_74_25,
++};
++
+ #define IMX290_STANDBY 0x3000
+ #define IMX290_REGHOLD 0x3001
+ #define IMX290_XMSTA 0x3002
+@@ -60,11 +69,16 @@ struct imx290_mode {
+ 
+ 	const struct imx290_regval *data;
+ 	u32 data_size;
++
++	/* Clock setup can vary. Index as enum imx290_clk_index */
++	const struct imx290_regval *clk_data[2];
++	u32 clk_size;
+ };
+ 
+ struct imx290 {
+ 	struct device *dev;
+ 	struct clk *xclk;
++	u32 xclk_freq;
+ 	struct regmap *regmap;
+ 	u8 nlanes;
+ 	u8 bpp;
+@@ -116,8 +130,6 @@ static const struct imx290_regval imx290
+ 	{ 0x3018, 0x65 },
+ 	{ 0x3019, 0x04 },
+ 	{ 0x301a, 0x00 },
+-	{ 0x3444, 0x20 },
+-	{ 0x3445, 0x25 },
+ 	{ 0x303a, 0x0c },
+ 	{ 0x3040, 0x00 },
+ 	{ 0x3041, 0x00 },
+@@ -171,6 +183,30 @@ static const struct imx290_regval imx290
+ 	{ 0x33b3, 0x04 },
+ };
+ 
++static const struct imx290_regval imx290_37_125mhz_clock_1080p[] = {
++	{ 0x305c, 0x18 },
++	{ 0x305d, 0x03 },
++	{ 0x305e, 0x20 },
++	{ 0x305f, 0x01 },
++	{ 0x315e, 0x1a },
++	{ 0x3164, 0x1a },
++	{ 0x3444, 0x20 },
++	{ 0x3445, 0x25 },
++	{ 0x3480, 0x49 },
++};
++
++static const struct imx290_regval imx290_74_250mhz_clock_1080p[] = {
++	{ 0x305c, 0x0c },
++	{ 0x305d, 0x03 },
++	{ 0x305e, 0x10 },
++	{ 0x305f, 0x01 },
++	{ 0x315e, 0x1b },
++	{ 0x3164, 0x1b },
++	{ 0x3444, 0x40 },
++	{ 0x3445, 0x4a },
++	{ 0x3480, 0x92 },
++};
++
+ static const struct imx290_regval imx290_1080p_settings[] = {
+ 	/* mode settings */
+ 	{ 0x3007, 0x00 },
+@@ -182,13 +218,6 @@ static const struct imx290_regval imx290
+ 	{ 0x3419, 0x04 },
+ 	{ 0x3012, 0x64 },
+ 	{ 0x3013, 0x00 },
+-	{ 0x305c, 0x18 },
+-	{ 0x305d, 0x03 },
+-	{ 0x305e, 0x20 },
+-	{ 0x305f, 0x01 },
+-	{ 0x315e, 0x1a },
+-	{ 0x3164, 0x1a },
+-	{ 0x3480, 0x49 },
+ 	/* data rate settings */
+ 	{ 0x3405, 0x10 },
+ 	{ 0x3446, 0x57 },
+@@ -209,6 +238,30 @@ static const struct imx290_regval imx290
+ 	{ 0x3455, 0x00 },
+ };
+ 
++static const struct imx290_regval imx290_37_125mhz_clock_720p[] = {
++	{ 0x305c, 0x20 },
++	{ 0x305d, 0x00 },
++	{ 0x305e, 0x20 },
++	{ 0x305f, 0x01 },
++	{ 0x315e, 0x1a },
++	{ 0x3164, 0x1a },
++	{ 0x3444, 0x20 },
++	{ 0x3445, 0x25 },
++	{ 0x3480, 0x49 },
++};
++
++static const struct imx290_regval imx290_74_250mhz_clock_720p[] = {
++	{ 0x305c, 0x10 },
++	{ 0x305d, 0x00 },
++	{ 0x305e, 0x10 },
++	{ 0x305f, 0x01 },
++	{ 0x315e, 0x1b },
++	{ 0x3164, 0x1b },
++	{ 0x3444, 0x40 },
++	{ 0x3445, 0x4a },
++	{ 0x3480, 0x92 },
++};
++
+ static const struct imx290_regval imx290_720p_settings[] = {
+ 	/* mode settings */
+ 	{ 0x3007, 0x10 },
+@@ -220,13 +273,6 @@ static const struct imx290_regval imx290
+ 	{ 0x3419, 0x02 },
+ 	{ 0x3012, 0x64 },
+ 	{ 0x3013, 0x00 },
+-	{ 0x305c, 0x20 },
+-	{ 0x305d, 0x00 },
+-	{ 0x305e, 0x20 },
+-	{ 0x305f, 0x01 },
+-	{ 0x315e, 0x1a },
+-	{ 0x3164, 0x1a },
+-	{ 0x3480, 0x49 },
+ 	/* data rate settings */
+ 	{ 0x3405, 0x10 },
+ 	{ 0x3446, 0x4f },
+@@ -312,6 +358,11 @@ static const struct imx290_mode imx290_m
+ 		.link_freq_index = FREQ_INDEX_1080P,
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
++		.clk_data = {
++			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
++			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
++		},
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_1080p),
+ 	},
+ 	{
+ 		.width = 1280,
+@@ -320,6 +371,11 @@ static const struct imx290_mode imx290_m
+ 		.link_freq_index = FREQ_INDEX_720P,
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
++		.clk_data = {
++			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
++			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
++		},
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_1080p),
+ 	},
+ };
+ 
+@@ -331,6 +387,11 @@ static const struct imx290_mode imx290_m
+ 		.link_freq_index = FREQ_INDEX_1080P,
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
++		.clk_data = {
++			[CLK_37_125] = imx290_37_125mhz_clock_720p,
++			[CLK_74_25] = imx290_74_250mhz_clock_720p,
++		},
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_720p),
+ 	},
+ 	{
+ 		.width = 1280,
+@@ -339,6 +400,11 @@ static const struct imx290_mode imx290_m
+ 		.link_freq_index = FREQ_INDEX_720P,
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
++		.clk_data = {
++			[CLK_37_125] = imx290_37_125mhz_clock_720p,
++			[CLK_74_25] = imx290_74_250mhz_clock_720p,
++		},
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_720p),
+ 	},
+ };
+ 
+@@ -712,6 +778,8 @@ static int imx290_set_hmax(struct imx290
+ /* Start streaming */
+ static int imx290_start_streaming(struct imx290 *imx290)
+ {
++	enum imx290_clk_index clk_idx = imx290->xclk_freq == 37125000 ?
++					CLK_37_125 : CLK_74_25;
+ 	int ret;
+ 
+ 	/* Set init register settings */
+@@ -723,6 +791,14 @@ static int imx290_start_streaming(struct
+ 		return ret;
+ 	}
+ 
++	ret = imx290_set_register_array(imx290,
++					imx290->current_mode->clk_data[clk_idx],
++					imx290->current_mode->clk_size);
++	if (ret < 0) {
++		dev_err(imx290->dev, "Could not set clock registers\n");
++		return ret;
++	}
++
+ 	/* Apply the register values related to current frame format */
+ 	ret = imx290_write_current_format(imx290);
+ 	if (ret < 0) {
+@@ -939,7 +1015,6 @@ static int imx290_probe(struct i2c_clien
+ 		.bus_type = V4L2_MBUS_CSI2_DPHY
+ 	};
+ 	struct imx290 *imx290;
+-	u32 xclk_freq;
+ 	s64 fq;
+ 	int ret;
+ 
+@@ -1003,21 +1078,21 @@ static int imx290_probe(struct i2c_clien
+ 	}
+ 
+ 	ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
+-				       &xclk_freq);
++				       &imx290->xclk_freq);
+ 	if (ret) {
+ 		dev_err(dev, "Could not get xclk frequency\n");
+ 		goto free_err;
+ 	}
+ 
+ 	/* external clock must be 37.125 MHz */
+-	if (xclk_freq != 37125000) {
++	if (imx290->xclk_freq != 37125000 && imx290->xclk_freq != 74250000) {
+ 		dev_err(dev, "External clock frequency %u is not supported\n",
+-			xclk_freq);
++			imx290->xclk_freq);
+ 		ret = -EINVAL;
+ 		goto free_err;
+ 	}
+ 
+-	ret = clk_set_rate(imx290->xclk, xclk_freq);
++	ret = clk_set_rate(imx290->xclk, imx290->xclk_freq);
+ 	if (ret) {
+ 		dev_err(dev, "Could not set xclk frequency\n");
+ 		goto free_err;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0269-media-i2c-imx290-Correct-range-for-V4L2_CID_GAIN-to-.patch b/target/linux/bcm27xx/patches-5.10/950-0269-media-i2c-imx290-Correct-range-for-V4L2_CID_GAIN-to-.patch
new file mode 100644
index 0000000000..3674f1ecde
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0269-media-i2c-imx290-Correct-range-for-V4L2_CID_GAIN-to-.patch
@@ -0,0 +1,26 @@
+From 5b95bb7b2d6b1a866c3ddd752bdbcfa09b0657b0 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 13:41:43 +0100
+Subject: [PATCH] media: i2c: imx290: Correct range for V4L2_CID_GAIN
+ to 0-238
+
+The datasheet lists the gain as being 0.0 to 72.0dB in 0.3dB steps, which
+makes 238 steps total.
+Correct the 0-72 range defined in the driver.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1124,7 +1124,7 @@ static int imx290_probe(struct i2c_clien
+ 	v4l2_ctrl_handler_init(&imx290->ctrls, 4);
+ 
+ 	v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+-			  V4L2_CID_GAIN, 0, 72, 1, 0);
++			  V4L2_CID_GAIN, 0, 238, 1, 0);
+ 
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0270-media-i2c-imx290-Convert-HMAX-setting-into-V4L2_CID_.patch b/target/linux/bcm27xx/patches-5.10/950-0270-media-i2c-imx290-Convert-HMAX-setting-into-V4L2_CID_.patch
new file mode 100644
index 0000000000..609ca7fe31
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0270-media-i2c-imx290-Convert-HMAX-setting-into-V4L2_CID_.patch
@@ -0,0 +1,159 @@
+From a3359aca41e5942a74f803ce8837ef24456db2d5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 14:36:40 +0100
+Subject: [PATCH] media: i2c: imx290: Convert HMAX setting into
+ V4L2_CID_HBLANK
+
+Userspace needs to know HBLANK if it is to work out exposure times
+and frame rates, therefore convert it to map onto V4L2_CID_HBLANK
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 66 +++++++++++++++++++++++++-------------
+ 1 file changed, 44 insertions(+), 22 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -40,6 +40,9 @@ enum imx290_clk_index {
+ #define IMX290_GAIN 0x3014
+ #define IMX290_HMAX_LOW 0x301c
+ #define IMX290_HMAX_HIGH 0x301d
++#define IMX290_HMAX_MIN_2LANE 4400 /* Min of 4400 pixels = 30fps */
++#define IMX290_HMAX_MIN_4LANE 2200 /* Min of 2200 pixels = 60fps */
++#define IMX290_HMAX_MAX 0xffff
+ #define IMX290_PGCTRL 0x308c
+ #define IMX290_PHY_LANE_NUM 0x3407
+ #define IMX290_CSI_LANE_MODE 0x3443
+@@ -82,6 +85,7 @@ struct imx290 {
+ 	struct regmap *regmap;
+ 	u8 nlanes;
+ 	u8 bpp;
++	u16 hmax_min;
+ 
+ 	struct v4l2_subdev sd;
+ 	struct media_pad pad;
+@@ -94,6 +98,7 @@ struct imx290 {
+ 	struct v4l2_ctrl_handler ctrls;
+ 	struct v4l2_ctrl *link_freq;
+ 	struct v4l2_ctrl *pixel_rate;
++	struct v4l2_ctrl *hblank;
+ 
+ 	struct mutex lock;
+ };
+@@ -518,6 +523,26 @@ static int imx290_set_gain(struct imx290
+ 	return ret;
+ }
+ 
++static int imx290_set_hmax(struct imx290 *imx290, u32 val)
++{
++	u32 hmax = val + imx290->current_mode->width;
++	int ret;
++
++	ret = imx290_write_reg(imx290, IMX290_HMAX_LOW, (hmax & 0xff));
++	if (ret) {
++		dev_err(imx290->dev, "Error setting HMAX register\n");
++		return ret;
++	}
++
++	ret = imx290_write_reg(imx290, IMX290_HMAX_HIGH, ((hmax >> 8) & 0xff));
++	if (ret) {
++		dev_err(imx290->dev, "Error setting HMAX register\n");
++		return ret;
++	}
++
++	return 0;
++}
++
+ /* Stop streaming */
+ static int imx290_stop_streaming(struct imx290 *imx290)
+ {
+@@ -546,6 +571,9 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_GAIN:
+ 		ret = imx290_set_gain(imx290, ctrl->val);
+ 		break;
++	case V4L2_CID_HBLANK:
++		ret = imx290_set_hmax(imx290, ctrl->val);
++		break;
+ 	case V4L2_CID_TEST_PATTERN:
+ 		if (ctrl->val) {
+ 			imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
+@@ -702,6 +730,12 @@ static int imx290_set_fmt(struct v4l2_su
+ 		if (imx290->pixel_rate)
+ 			__v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate,
+ 						 imx290_calc_pixel_rate(imx290));
++
++		if (imx290->hblank)
++			__v4l2_ctrl_modify_range(imx290->hblank,
++						 imx290->hmax_min - mode->width,
++						 IMX290_HMAX_MAX - mode->width,
++						 1, mode->hmax - mode->width);
+ 	}
+ 
+ 	*format = fmt->format;
+@@ -756,25 +790,6 @@ static int imx290_write_current_format(s
+ 	return 0;
+ }
+ 
+-static int imx290_set_hmax(struct imx290 *imx290, u32 val)
+-{
+-	int ret;
+-
+-	ret = imx290_write_reg(imx290, IMX290_HMAX_LOW, (val & 0xff));
+-	if (ret) {
+-		dev_err(imx290->dev, "Error setting HMAX register\n");
+-		return ret;
+-	}
+-
+-	ret = imx290_write_reg(imx290, IMX290_HMAX_HIGH, ((val >> 8) & 0xff));
+-	if (ret) {
+-		dev_err(imx290->dev, "Error setting HMAX register\n");
+-		return ret;
+-	}
+-
+-	return 0;
+-}
+-
+ /* Start streaming */
+ static int imx290_start_streaming(struct imx290 *imx290)
+ {
+@@ -813,9 +828,6 @@ static int imx290_start_streaming(struct
+ 		dev_err(imx290->dev, "Could not set current mode\n");
+ 		return ret;
+ 	}
+-	ret = imx290_set_hmax(imx290, imx290->current_mode->hmax);
+-	if (ret < 0)
+-		return ret;
+ 
+ 	/* Apply customized values from user */
+ 	ret = v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler);
+@@ -1014,6 +1026,7 @@ static int imx290_probe(struct i2c_clien
+ 	struct v4l2_fwnode_endpoint ep = {
+ 		.bus_type = V4L2_MBUS_CSI2_DPHY
+ 	};
++	const struct imx290_mode *mode;
+ 	struct imx290 *imx290;
+ 	s64 fq;
+ 	int ret;
+@@ -1052,6 +1065,8 @@ static int imx290_probe(struct i2c_clien
+ 		ret = -EINVAL;
+ 		goto free_err;
+ 	}
++	imx290->hmax_min = (imx290->nlanes == 2) ? IMX290_HMAX_MIN_2LANE :
++						 IMX290_HMAX_MIN_4LANE;
+ 
+ 	dev_dbg(dev, "Using %u data lanes\n", imx290->nlanes);
+ 
+@@ -1126,6 +1141,13 @@ static int imx290_probe(struct i2c_clien
+ 	v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ 			  V4L2_CID_GAIN, 0, 238, 1, 0);
+ 
++	mode = imx290->current_mode;
++	imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					   V4L2_CID_HBLANK,
++					   imx290->hmax_min - mode->width,
++					   IMX290_HMAX_MAX - mode->width, 1,
++					   mode->hmax - mode->width);
++
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ 				       V4L2_CID_LINK_FREQ,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0271-media-i2c-imx290-Add-support-for-V4L2_CID_VBLANK.patch b/target/linux/bcm27xx/patches-5.10/950-0271-media-i2c-imx290-Add-support-for-V4L2_CID_VBLANK.patch
new file mode 100644
index 0000000000..fe9f9808e2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0271-media-i2c-imx290-Add-support-for-V4L2_CID_VBLANK.patch
@@ -0,0 +1,141 @@
+From e8ad74c090f54cf8ce845b627e4312b6166059fd Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 18:09:12 +0100
+Subject: [PATCH] media: i2c: imx290: Add support for V4L2_CID_VBLANK
+
+In order to calculate framerate and durations userspace needs
+the vertical blanking information. This can be configurable,
+and indeed the datasheet lists different values for VBLANK for
+the 1080p and 720p modes.
+
+Add the new control, and adopt the datasheet values for each mode.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 38 ++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 36 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -38,6 +38,8 @@ enum imx290_clk_index {
+ #define IMX290_BLKLEVEL_LOW 0x300a
+ #define IMX290_BLKLEVEL_HIGH 0x300b
+ #define IMX290_GAIN 0x3014
++#define IMX290_VMAX_LOW 0x3018
++#define IMX290_VMAX_MAX 0x3fff
+ #define IMX290_HMAX_LOW 0x301c
+ #define IMX290_HMAX_HIGH 0x301d
+ #define IMX290_HMAX_MIN_2LANE 4400 /* Min of 4400 pixels = 30fps */
+@@ -68,6 +70,7 @@ struct imx290_mode {
+ 	u32 width;
+ 	u32 height;
+ 	u32 hmax;
++	u32 vmax;
+ 	u8 link_freq_index;
+ 
+ 	const struct imx290_regval *data;
+@@ -99,6 +102,7 @@ struct imx290 {
+ 	struct v4l2_ctrl *link_freq;
+ 	struct v4l2_ctrl *pixel_rate;
+ 	struct v4l2_ctrl *hblank;
++	struct v4l2_ctrl *vblank;
+ 
+ 	struct mutex lock;
+ };
+@@ -132,8 +136,6 @@ static const char * const imx290_test_pa
+ 
+ static const struct imx290_regval imx290_global_init_settings[] = {
+ 	{ 0x3007, 0x00 },
+-	{ 0x3018, 0x65 },
+-	{ 0x3019, 0x04 },
+ 	{ 0x301a, 0x00 },
+ 	{ 0x303a, 0x0c },
+ 	{ 0x3040, 0x00 },
+@@ -360,6 +362,7 @@ static const struct imx290_mode imx290_m
+ 		.width = 1920,
+ 		.height = 1080,
+ 		.hmax = 0x1130,
++		.vmax = 0x0465,
+ 		.link_freq_index = FREQ_INDEX_1080P,
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
+@@ -373,6 +376,7 @@ static const struct imx290_mode imx290_m
+ 		.width = 1280,
+ 		.height = 720,
+ 		.hmax = 0x19c8,
++		.vmax = 0x02ee,
+ 		.link_freq_index = FREQ_INDEX_720P,
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
+@@ -389,6 +393,7 @@ static const struct imx290_mode imx290_m
+ 		.width = 1920,
+ 		.height = 1080,
+ 		.hmax = 0x0898,
++		.vmax = 0x0465,
+ 		.link_freq_index = FREQ_INDEX_1080P,
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
+@@ -402,6 +407,7 @@ static const struct imx290_mode imx290_m
+ 		.width = 1280,
+ 		.height = 720,
+ 		.hmax = 0x0ce4,
++		.vmax = 0x02ee,
+ 		.link_freq_index = FREQ_INDEX_720P,
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
+@@ -543,6 +549,19 @@ static int imx290_set_hmax(struct imx290
+ 	return 0;
+ }
+ 
++static int imx290_set_vmax(struct imx290 *imx290, u32 val)
++{
++	u32 vmax = val + imx290->current_mode->height;
++	int ret;
++
++	ret = imx290_write_buffered_reg(imx290, IMX290_VMAX_LOW, 3,
++					vmax);
++	if (ret)
++		dev_err(imx290->dev, "Unable to write vmax\n");
++
++	return ret;
++}
++
+ /* Stop streaming */
+ static int imx290_stop_streaming(struct imx290 *imx290)
+ {
+@@ -574,6 +593,9 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_HBLANK:
+ 		ret = imx290_set_hmax(imx290, ctrl->val);
+ 		break;
++	case V4L2_CID_VBLANK:
++		ret = imx290_set_vmax(imx290, ctrl->val);
++		break;
+ 	case V4L2_CID_TEST_PATTERN:
+ 		if (ctrl->val) {
+ 			imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
+@@ -736,6 +758,12 @@ static int imx290_set_fmt(struct v4l2_su
+ 						 imx290->hmax_min - mode->width,
+ 						 IMX290_HMAX_MAX - mode->width,
+ 						 1, mode->hmax - mode->width);
++		if (imx290->vblank)
++			__v4l2_ctrl_modify_range(imx290->vblank,
++						 mode->vmax - mode->height,
++						 IMX290_VMAX_MAX - mode->height,
++						 1,
++						 mode->vmax - mode->height);
+ 	}
+ 
+ 	*format = fmt->format;
+@@ -1148,6 +1176,12 @@ static int imx290_probe(struct i2c_clien
+ 					   IMX290_HMAX_MAX - mode->width, 1,
+ 					   mode->hmax - mode->width);
+ 
++	imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					   V4L2_CID_VBLANK,
++					   mode->vmax - mode->height,
++					   IMX290_VMAX_MAX - mode->height, 1,
++					   mode->vmax - mode->height);
++
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ 				       V4L2_CID_LINK_FREQ,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0272-media-i2c-imx290-Add-exposure-control-to-the-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0272-media-i2c-imx290-Add-exposure-control-to-the-driver.patch
new file mode 100644
index 0000000000..0865830752
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0272-media-i2c-imx290-Add-exposure-control-to-the-driver.patch
@@ -0,0 +1,93 @@
+From 3802436037a2df9a85eee1e2917521c02e2263b7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 18:19:13 +0100
+Subject: [PATCH] media: i2c: imx290: Add exposure control to the
+ driver.
+
+Adds support for V4L2_CID_EXPOSURE so that userspace can control
+the sensor exposure time.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 35 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 35 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -45,6 +45,10 @@ enum imx290_clk_index {
+ #define IMX290_HMAX_MIN_2LANE 4400 /* Min of 4400 pixels = 30fps */
+ #define IMX290_HMAX_MIN_4LANE 2200 /* Min of 2200 pixels = 60fps */
+ #define IMX290_HMAX_MAX 0xffff
++
++#define IMX290_EXPOSURE_MIN 2
++#define IMX290_EXPOSURE_STEP 1
++#define IMX290_EXPOSURE_LOW 0x3020
+ #define IMX290_PGCTRL 0x308c
+ #define IMX290_PHY_LANE_NUM 0x3407
+ #define IMX290_CSI_LANE_MODE 0x3443
+@@ -103,6 +107,7 @@ struct imx290 {
+ 	struct v4l2_ctrl *pixel_rate;
+ 	struct v4l2_ctrl *hblank;
+ 	struct v4l2_ctrl *vblank;
++	struct v4l2_ctrl *exposure;
+ 
+ 	struct mutex lock;
+ };
+@@ -529,6 +534,20 @@ static int imx290_set_gain(struct imx290
+ 	return ret;
+ }
+ 
++static int imx290_set_exposure(struct imx290 *imx290, u32 value)
++{
++	u32 exposure = (imx290->current_mode->height + imx290->vblank->val) -
++						value;
++	int ret;
++
++	ret = imx290_write_buffered_reg(imx290, IMX290_EXPOSURE_LOW, 3,
++					exposure);
++	if (ret)
++		dev_err(imx290->dev, "Unable to write exposure\n");
++
++	return ret;
++}
++
+ static int imx290_set_hmax(struct imx290 *imx290, u32 val)
+ {
+ 	u32 hmax = val + imx290->current_mode->width;
+@@ -590,6 +609,9 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_GAIN:
+ 		ret = imx290_set_gain(imx290, ctrl->val);
+ 		break;
++	case V4L2_CID_EXPOSURE:
++		ret = imx290_set_exposure(imx290, ctrl->val);
++		break;
+ 	case V4L2_CID_HBLANK:
+ 		ret = imx290_set_hmax(imx290, ctrl->val);
+ 		break;
+@@ -764,6 +786,12 @@ static int imx290_set_fmt(struct v4l2_su
+ 						 IMX290_VMAX_MAX - mode->height,
+ 						 1,
+ 						 mode->vmax - mode->height);
++		if (imx290->exposure)
++			__v4l2_ctrl_modify_range(imx290->exposure,
++						 mode->vmax - mode->height,
++						 mode->vmax - 4,
++						 IMX290_EXPOSURE_STEP,
++						 mode->vmax - 4);
+ 	}
+ 
+ 	*format = fmt->format;
+@@ -1182,6 +1210,13 @@ static int imx290_probe(struct i2c_clien
+ 					   IMX290_VMAX_MAX - mode->height, 1,
+ 					   mode->vmax - mode->height);
+ 
++	imx290->exposure = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					     V4L2_CID_EXPOSURE,
++					     IMX290_EXPOSURE_MIN,
++					     mode->vmax - 4,
++					     IMX290_EXPOSURE_STEP,
++					     mode->vmax - 4);
++
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ 				       V4L2_CID_LINK_FREQ,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0273-media-i2c-imx290-Add-H-and-V-flip-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0273-media-i2c-imx290-Add-H-and-V-flip-controls.patch
new file mode 100644
index 0000000000..0ad9193d6d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0273-media-i2c-imx290-Add-H-and-V-flip-controls.patch
@@ -0,0 +1,83 @@
+From ab78051da1ad984c5b424c1e75f487d2a2f2c026 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Jun 2020 18:34:16 +0100
+Subject: [PATCH] media: i2c: imx290: Add H and V flip controls
+
+The sensor supports horizontal and vertical flips, so support them
+through V4L2_CID_HFLIP and V4L2_CID_VFLIP.
+
+This sensor does NOT change the Bayer order when changing the
+direction of readout, therefore no special handling is required for
+that.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -34,6 +34,7 @@ enum imx290_clk_index {
+ #define IMX290_STANDBY 0x3000
+ #define IMX290_REGHOLD 0x3001
+ #define IMX290_XMSTA 0x3002
++#define IMX290_FLIP_WINMODE 0x3007
+ #define IMX290_FR_FDG_SEL 0x3009
+ #define IMX290_BLKLEVEL_LOW 0x300a
+ #define IMX290_BLKLEVEL_HIGH 0x300b
+@@ -107,6 +108,8 @@ struct imx290 {
+ 	struct v4l2_ctrl *pixel_rate;
+ 	struct v4l2_ctrl *hblank;
+ 	struct v4l2_ctrl *vblank;
++	struct v4l2_ctrl *hflip;
++	struct v4l2_ctrl *vflip;
+ 	struct v4l2_ctrl *exposure;
+ 
+ 	struct mutex lock;
+@@ -600,6 +603,7 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	struct imx290 *imx290 = container_of(ctrl->handler,
+ 					     struct imx290, ctrls);
+ 	int ret = 0;
++	u8 val;
+ 
+ 	/* V4L2 controls values will be applied only when power is already up */
+ 	if (!pm_runtime_get_if_in_use(imx290->dev))
+@@ -618,6 +622,16 @@ static int imx290_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_VBLANK:
+ 		ret = imx290_set_vmax(imx290, ctrl->val);
+ 		break;
++	case V4L2_CID_HFLIP:
++	case V4L2_CID_VFLIP:
++		/* WINMODE is in bits [6:4], so need to read-modify-write */
++		ret = imx290_read_reg(imx290, IMX290_FLIP_WINMODE, &val);
++		if (ret)
++			break;
++		val &= ~0x03;
++		val |= imx290->vflip->val | (imx290->hflip->val << 1);
++		ret = imx290_write_reg(imx290, IMX290_FLIP_WINMODE, val);
++		break;
+ 	case V4L2_CID_TEST_PATTERN:
+ 		if (ctrl->val) {
+ 			imx290_write_reg(imx290, IMX290_BLKLEVEL_LOW, 0x00);
+@@ -924,6 +938,9 @@ static int imx290_set_stream(struct v4l2
+ 		imx290_stop_streaming(imx290);
+ 		pm_runtime_put(imx290->dev);
+ 	}
++	/* vflip and hflip cannot change during streaming */
++	__v4l2_ctrl_grab(imx290->vflip, enable);
++	__v4l2_ctrl_grab(imx290->hflip, enable);
+ 
+ unlock_and_return:
+ 
+@@ -1217,6 +1234,11 @@ static int imx290_probe(struct i2c_clien
+ 					     IMX290_EXPOSURE_STEP,
+ 					     mode->vmax - 4);
+ 
++	imx290->hflip = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					  V4L2_CID_HFLIP, 0, 1, 1, 0);
++	imx290->vflip = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++					  V4L2_CID_VFLIP, 0, 1, 1, 0);
++
+ 	imx290->link_freq =
+ 		v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ 				       V4L2_CID_LINK_FREQ,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0274-media-dt-bindings-media-i2c-Add-mono-version-to-IMX2.patch b/target/linux/bcm27xx/patches-5.10/950-0274-media-dt-bindings-media-i2c-Add-mono-version-to-IMX2.patch
new file mode 100644
index 0000000000..bc195d9cb3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0274-media-dt-bindings-media-i2c-Add-mono-version-to-IMX2.patch
@@ -0,0 +1,36 @@
+From 5e67752c725fa06d0e2455dac19fbef93e313eb7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 16:52:14 +0100
+Subject: [PATCH] media: dt-bindings: media: i2c: Add mono version to
+ IMX290 bindings
+
+The IMX290 module is available as either monochrome or colour and
+the variant is not detectable at runtime.
+
+Add a new compatible string for the monochrome version.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ Documentation/devicetree/bindings/media/i2c/imx290.txt | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+--- a/Documentation/devicetree/bindings/media/i2c/imx290.txt
++++ b/Documentation/devicetree/bindings/media/i2c/imx290.txt
+@@ -1,13 +1,14 @@
+ * Sony IMX290 1/2.8-Inch CMOS Image Sensor
+ 
+ The Sony IMX290 is a 1/2.8-Inch CMOS Solid-state image sensor with
+-Square Pixel for Color Cameras. It is programmable through I2C and 4-wire
+-interfaces. The sensor output is available via CMOS logic parallel SDR output,
++Square Pixel for Color or Monochrome Cameras. It is programmable through I2C
++and 4-wire interfaces.
++The sensor output is available via CMOS logic parallel SDR output,
+ Low voltage LVDS DDR output and CSI-2 serial data output. The CSI-2 bus is the
+ default. No bindings have been defined for the other busses.
+ 
+ Required Properties:
+-- compatible: Should be "sony,imx290"
++- compatible: Should be "sony,imx290", or "sony,imx290-mono"
+ - reg: I2C bus address of the device
+ - clocks: Reference to the xclk clock.
+ - clock-names: Should be "xclk".
diff --git a/target/linux/bcm27xx/patches-5.10/950-0275-media-i2c-imx290-Add-support-for-the-mono-sensor-var.patch b/target/linux/bcm27xx/patches-5.10/950-0275-media-i2c-imx290-Add-support-for-the-mono-sensor-var.patch
new file mode 100644
index 0000000000..a0f79ef9d1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0275-media-i2c-imx290-Add-support-for-the-mono-sensor-var.patch
@@ -0,0 +1,185 @@
+From 550fc1298f6a4726e3944944561a047b3e04b134 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 17:03:11 +0100
+Subject: [PATCH] media : i2c: imx290: Add support for the mono sensor
+ variant.
+
+The IMX290 module is available as either mono or colour (Bayer).
+
+Update the driver so that it can advertise the correct mono
+formats instead of the colour ones.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 58 +++++++++++++++++++++++++++-----------
+ 1 file changed, 41 insertions(+), 17 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1,10 +1,12 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /*
+- * Sony IMX290/327 CMOS Image Sensor Driver
++ * Sony IMX290 & IMX327 CMOS Image Sensor Driver
+  *
+  * The IMX290 and IMX327 are very similar 1920x1080 1/2.8 CMOS image sensors.
+- * IMX327 can support up to 60fps, whilst IMX290 support up to 120fps (only
+- * 10bit and when connected over 4 CSI-2 lanes).
++ * IMX327 can support up to 60fps, whilst IMX290 can support up to 120fps, but
++ * only 10bit and when connected over 4 CSI-2 lanes.
++ * The modules don't appear to have a mechanism to identify whether the mono or
++ * colour variant is connected, therefore it is done via compatible string.
+  *
+  * Copyright (C) 2019 FRAMOS GmbH.
+  *
+@@ -17,6 +19,7 @@
+ #include <linux/gpio/consumer.h>
+ #include <linux/i2c.h>
+ #include <linux/module.h>
++#include <linux/of_device.h>
+ #include <linux/pm_runtime.h>
+ #include <linux/regmap.h>
+ #include <linux/regulator/consumer.h>
+@@ -95,6 +98,8 @@ struct imx290 {
+ 	u8 bpp;
+ 	u16 hmax_min;
+ 
++	const struct imx290_pixfmt *formats;
++
+ 	struct v4l2_subdev sd;
+ 	struct media_pad pad;
+ 	struct v4l2_mbus_framefmt current_format;
+@@ -120,11 +125,18 @@ struct imx290_pixfmt {
+ 	u8 bpp;
+ };
+ 
+-static const struct imx290_pixfmt imx290_formats[] = {
++#define IMX290_NUM_FORMATS 2
++
++static const struct imx290_pixfmt imx290_colour_formats[IMX290_NUM_FORMATS] = {
+ 	{ MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
+ 	{ MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
+ };
+ 
++static const struct imx290_pixfmt imx290_mono_formats[IMX290_NUM_FORMATS] = {
++	{ MEDIA_BUS_FMT_Y10_1X10, 10 },
++	{ MEDIA_BUS_FMT_Y12_1X12, 12 },
++};
++
+ static const struct regmap_config imx290_regmap_config = {
+ 	.reg_bits = 16,
+ 	.val_bits = 8,
+@@ -671,10 +683,12 @@ static int imx290_enum_mbus_code(struct
+ 				 struct v4l2_subdev_pad_config *cfg,
+ 				 struct v4l2_subdev_mbus_code_enum *code)
+ {
+-	if (code->index >= ARRAY_SIZE(imx290_formats))
++	const struct imx290 *imx290 = to_imx290(sd);
++
++	if (code->index >= IMX290_NUM_FORMATS)
+ 		return -EINVAL;
+ 
+-	code->code = imx290_formats[code->index].code;
++	code->code = imx290->formats[code->index].code;
+ 
+ 	return 0;
+ }
+@@ -686,8 +700,8 @@ static int imx290_enum_frame_size(struct
+ 	const struct imx290 *imx290 = to_imx290(sd);
+ 	const struct imx290_mode *imx290_modes = imx290_modes_ptr(imx290);
+ 
+-	if ((fse->code != imx290_formats[0].code) &&
+-	    (fse->code != imx290_formats[1].code))
++	if (fse->code != imx290->formats[0].code &&
++	    fse->code != imx290->formats[1].code)
+ 		return -EINVAL;
+ 
+ 	if (fse->index >= imx290_modes_num(imx290))
+@@ -765,14 +779,14 @@ static int imx290_set_fmt(struct v4l2_su
+ 	fmt->format.width = mode->width;
+ 	fmt->format.height = mode->height;
+ 
+-	for (i = 0; i < ARRAY_SIZE(imx290_formats); i++)
+-		if (imx290_formats[i].code == fmt->format.code)
++	for (i = 0; i < IMX290_NUM_FORMATS; i++)
++		if (imx290->formats[i].code == fmt->format.code)
+ 			break;
+ 
+-	if (i >= ARRAY_SIZE(imx290_formats))
++	if (i >= IMX290_NUM_FORMATS)
+ 		i = 0;
+ 
+-	fmt->format.code = imx290_formats[i].code;
++	fmt->format.code = imx290->formats[i].code;
+ 	fmt->format.field = V4L2_FIELD_NONE;
+ 
+ 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+@@ -780,7 +794,7 @@ static int imx290_set_fmt(struct v4l2_su
+ 	} else {
+ 		format = &imx290->current_format;
+ 		imx290->current_mode = mode;
+-		imx290->bpp = imx290_formats[i].bpp;
++		imx290->bpp = imx290->formats[i].bpp;
+ 
+ 		if (imx290->link_freq)
+ 			__v4l2_ctrl_s_ctrl(imx290->link_freq,
+@@ -835,6 +849,7 @@ static int imx290_write_current_format(s
+ 
+ 	switch (imx290->current_format.code) {
+ 	case MEDIA_BUS_FMT_SRGGB10_1X10:
++	case MEDIA_BUS_FMT_Y10_1X10:
+ 		ret = imx290_set_register_array(imx290, imx290_10bit_settings,
+ 						ARRAY_SIZE(
+ 							imx290_10bit_settings));
+@@ -844,6 +859,7 @@ static int imx290_write_current_format(s
+ 		}
+ 		break;
+ 	case MEDIA_BUS_FMT_SRGGB12_1X12:
++	case MEDIA_BUS_FMT_Y12_1X12:
+ 		ret = imx290_set_register_array(imx290, imx290_12bit_settings,
+ 						ARRAY_SIZE(
+ 							imx290_12bit_settings));
+@@ -1091,6 +1107,12 @@ static s64 imx290_check_link_freqs(const
+ 	return 0;
+ }
+ 
++static const struct of_device_id imx290_of_match[] = {
++	{ .compatible = "sony,imx290", .data = imx290_colour_formats },
++	{ .compatible = "sony,imx290-mono", .data = imx290_mono_formats },
++	{ /* sentinel */ }
++};
++
+ static int imx290_probe(struct i2c_client *client)
+ {
+ 	struct device *dev = &client->dev;
+@@ -1099,6 +1121,7 @@ static int imx290_probe(struct i2c_clien
+ 	struct v4l2_fwnode_endpoint ep = {
+ 		.bus_type = V4L2_MBUS_CSI2_DPHY
+ 	};
++	const struct of_device_id *match;
+ 	const struct imx290_mode *mode;
+ 	struct imx290 *imx290;
+ 	s64 fq;
+@@ -1115,6 +1138,11 @@ static int imx290_probe(struct i2c_clien
+ 		return -ENODEV;
+ 	}
+ 
++	match = of_match_device(imx290_of_match, dev);
++	if (!match)
++		return -ENODEV;
++	imx290->formats = (const struct imx290_pixfmt *)match->data;
++
+ 	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
+ 	if (!endpoint) {
+ 		dev_err(dev, "Endpoint node not found\n");
+@@ -1333,10 +1361,6 @@ static int imx290_remove(struct i2c_clie
+ 	return 0;
+ }
+ 
+-static const struct of_device_id imx290_of_match[] = {
+-	{ .compatible = "sony,imx290" },
+-	{ /* sentinel */ }
+-};
+ MODULE_DEVICE_TABLE(of, imx290_of_match);
+ 
+ static struct i2c_driver imx290_i2c_driver = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0276-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch b/target/linux/bcm27xx/patches-5.10/950-0276-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch
new file mode 100644
index 0000000000..1e6b140802
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0276-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch
@@ -0,0 +1,43 @@
+From 4e0e8f87b81ed1dfa9876e0ce4492cc8f64c935a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 26 Jun 2020 18:11:49 +0100
+Subject: [PATCH] media: i2c: imx290: Switch set_hmax to use
+ imx290_write_buffered_reg
+
+imx290_set_hmax was using two independent writes to set up hmax,
+when all other multi-register writes were using imx290_write_buffered_reg
+which claims the group hold first.
+
+Switch imx290_set_hmax to using imx290_write_buffered_reg too.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 15 ++++-----------
+ 1 file changed, 4 insertions(+), 11 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -568,19 +568,12 @@ static int imx290_set_hmax(struct imx290
+ 	u32 hmax = val + imx290->current_mode->width;
+ 	int ret;
+ 
+-	ret = imx290_write_reg(imx290, IMX290_HMAX_LOW, (hmax & 0xff));
+-	if (ret) {
++	ret = imx290_write_buffered_reg(imx290, IMX290_HMAX_LOW, 2,
++					hmax);
++	if (ret)
+ 		dev_err(imx290->dev, "Error setting HMAX register\n");
+-		return ret;
+-	}
+ 
+-	ret = imx290_write_reg(imx290, IMX290_HMAX_HIGH, ((hmax >> 8) & 0xff));
+-	if (ret) {
+-		dev_err(imx290->dev, "Error setting HMAX register\n");
+-		return ret;
+-	}
+-
+-	return 0;
++	return ret;
+ }
+ 
+ static int imx290_set_vmax(struct imx290 *imx290, u32 val)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0277-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch b/target/linux/bcm27xx/patches-5.10/950-0277-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch
new file mode 100644
index 0000000000..304552f790
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0277-serial-8250-bcm2835aux-defer-if-clock-is-zero.patch
@@ -0,0 +1,28 @@
+From e3af8dd4ba4fc1ae6260823dfb3a82236471c353 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 2 Jul 2020 13:53:20 +0100
+Subject: [PATCH] serial: 8250: bcm2835aux - defer if clock is zero
+
+See: https://github.com/raspberrypi/linux/issues/3700
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/tty/serial/8250/8250_bcm2835aux.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/tty/serial/8250/8250_bcm2835aux.c
++++ b/drivers/tty/serial/8250/8250_bcm2835aux.c
+@@ -148,6 +148,13 @@ static int bcm2835aux_serial_probe(struc
+ 	 */
+ 	up.port.uartclk = clk_get_rate(data->clk) * 2;
+ 
++	/* The clock is only queried at probe time, which means we get one shot
++	 * at this. A zero clock is never going to work and is almost certainly
++	 * due to a parent not being ready, so prefer to defer.
++	 */
++	if (!up.port.uartclk)
++	    return -EPROBE_DEFER;
++
+ 	/* register the port */
+ 	ret = serial8250_register_8250_port(&up);
+ 	if (ret < 0) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0278-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch b/target/linux/bcm27xx/patches-5.10/950-0278-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch
new file mode 100644
index 0000000000..fb27792ca3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0278-media-Add-a-pixel-format-for-MIPI-packed-12bit-luma-.patch
@@ -0,0 +1,95 @@
+From 85e4a24a7f8fd96cc765c038bbae601ca69daa39 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 May 2020 16:59:03 +0100
+Subject: [PATCH] media: Add a pixel format for MIPI packed 12bit luma
+ only.
+
+This is the format used by monochrome 12bit image sensors.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../userspace-api/media/v4l/pixfmt-y12p.rst   | 45 +++++++++++++++++++
+ .../userspace-api/media/v4l/yuv-formats.rst   |  1 +
+ drivers/media/v4l2-core/v4l2-ioctl.c          |  1 +
+ include/uapi/linux/videodev2.h                |  1 +
+ 4 files changed, 48 insertions(+)
+ create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-y12p.rst
+
+--- /dev/null
++++ b/Documentation/userspace-api/media/v4l/pixfmt-y12p.rst
+@@ -0,0 +1,45 @@
++.. Permission is granted to copy, distribute and/or modify this
++.. document under the terms of the GNU Free Documentation License,
++.. Version 1.1 or any later version published by the Free Software
++.. Foundation, with no Invariant Sections, no Front-Cover Texts
++.. and no Back-Cover Texts. A copy of the license is included at
++.. Documentation/media/uapi/fdl-appendix.rst.
++..
++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
++
++.. _V4L2-PIX-FMT-Y12P:
++
++******************************
++V4L2_PIX_FMT_Y12P ('Y12P')
++******************************
++
++Grey-scale image as a MIPI RAW12 packed array
++
++
++Description
++===========
++
++This is a packed grey-scale image format with a depth of 12 bits per
++pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes
++contain the 8 high order bits of the pixels, and the 3rd byte contains the 4
++least significants bits of each pixel, in the same order.
++
++**Byte Order.**
++Each cell is one byte.
++
++.. tabularcolumns:: |p{2.2cm}|p{1.2cm}|p{1.2cm}|p{3.1cm}|
++
++
++.. flat-table::
++    :header-rows:  0
++    :stub-columns: 0
++    :widths:       2 1 1 1
++
++
++    -  -  start + 0:
++       -  Y'\ :sub:`00high`
++       -  Y'\ :sub:`01high`
++       -  Y'\ :sub:`01low`\ (bits 7--4)
++
++          Y'\ :sub:`00low`\ (bits 3--0)
++
+--- a/Documentation/userspace-api/media/v4l/yuv-formats.rst
++++ b/Documentation/userspace-api/media/v4l/yuv-formats.rst
+@@ -28,6 +28,7 @@ to brightness information.
+     pixfmt-grey
+     pixfmt-y10
+     pixfmt-y12
++    pixfmt-y12p
+     pixfmt-y14
+     pixfmt-y10b
+     pixfmt-y10p
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1283,6 +1283,7 @@ static void v4l_fill_fmtdesc(struct v4l2
+ 	case V4L2_PIX_FMT_Y16_BE:	descr = "16-bit Greyscale BE"; break;
+ 	case V4L2_PIX_FMT_Y10BPACK:	descr = "10-bit Greyscale (Packed)"; break;
+ 	case V4L2_PIX_FMT_Y10P:		descr = "10-bit Greyscale (MIPI Packed)"; break;
++	case V4L2_PIX_FMT_Y12P:		descr = "12-bit Greyscale (MIPI Packed)"; break;
+ 	case V4L2_PIX_FMT_Y8I:		descr = "Interleaved 8-bit Greyscale"; break;
+ 	case V4L2_PIX_FMT_Y12I:		descr = "Interleaved 12-bit Greyscale"; break;
+ 	case V4L2_PIX_FMT_Z16:		descr = "16-bit Depth"; break;
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -580,6 +580,7 @@ struct v4l2_pix_format {
+ /* Grey bit-packed formats */
+ #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
+ #define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */
++#define V4L2_PIX_FMT_Y12P    v4l2_fourcc('Y', '1', '2', 'P') /* 12  Greyscale, MIPI RAW12 packed */
+ 
+ /* Palette formats */
+ #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0279-media-Add-a-pixel-format-for-MIPI-packed-14bit-luma-.patch b/target/linux/bcm27xx/patches-5.10/950-0279-media-Add-a-pixel-format-for-MIPI-packed-14bit-luma-.patch
new file mode 100644
index 0000000000..e6b27905cb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0279-media-Add-a-pixel-format-for-MIPI-packed-14bit-luma-.patch
@@ -0,0 +1,104 @@
+From e3da593c79ce8e7ab7072fe1551fc1e8b5494eab Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 17:51:03 +0100
+Subject: [PATCH] media: Add a pixel format for MIPI packed 14bit luma
+ only.
+
+This is the format used by monochrome 14bit image sensors.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../userspace-api/media/v4l/pixfmt-y14p.rst   | 54 +++++++++++++++++++
+ .../userspace-api/media/v4l/yuv-formats.rst   |  1 +
+ drivers/media/v4l2-core/v4l2-ioctl.c          |  1 +
+ include/uapi/linux/videodev2.h                |  1 +
+ 4 files changed, 57 insertions(+)
+ create mode 100644 Documentation/userspace-api/media/v4l/pixfmt-y14p.rst
+
+--- /dev/null
++++ b/Documentation/userspace-api/media/v4l/pixfmt-y14p.rst
+@@ -0,0 +1,54 @@
++.. Permission is granted to copy, distribute and/or modify this
++.. document under the terms of the GNU Free Documentation License,
++.. Version 1.1 or any later version published by the Free Software
++.. Foundation, with no Invariant Sections, no Front-Cover Texts
++.. and no Back-Cover Texts. A copy of the license is included at
++.. Documentation/media/uapi/fdl-appendix.rst.
++..
++.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
++
++.. _V4L2-PIX-FMT-Y14P:
++
++**************************
++V4L2_PIX_FMT_Y14P ('Y14P')
++**************************
++
++Grey-scale image as a MIPI RAW14 packed array
++
++
++Description
++===========
++
++This is a packed grey-scale image format with a depth of 14 bits per
++pixel. Every four consecutive samples are packed into seven bytes. Each
++of the first four bytes contain the eight high order bits of the pixels,
++and the three following bytes contains the six least significants bits of
++each pixel, in the same order.
++
++**Byte Order.**
++Each cell is one byte.
++
++.. tabularcolumns:: |p{1.8cm}|p{1.0cm}|p{1.0cm}|p{1.0cm}|p{1.1cm}|p{3.3cm}|p{3.3cm}|p{3.3cm}|
++
++.. flat-table::
++    :header-rows:  0
++    :stub-columns: 0
++    :widths:       2 1 1 1 1 3 3 3
++
++
++    -  -  start + 0:
++       -  Y'\ :sub:`00high`
++       -  Y'\ :sub:`01high`
++       -  Y'\ :sub:`02high`
++       -  Y'\ :sub:`03high`
++       -  Y'\ :sub:`01low bits 1--0`\ (bits 7--6)
++
++	  Y'\ :sub:`00low bits 5--0`\ (bits 5--0)
++
++       -  Y'\ :sub:`02low bits 3--0`\ (bits 7--4)
++
++	  Y'\ :sub:`01low bits 5--2`\ (bits 3--0)
++
++       -  Y'\ :sub:`03low bits 5--0`\ (bits 7--2)
++
++	  Y'\ :sub:`02low bits 5--4`\ (bits 1--0)
+--- a/Documentation/userspace-api/media/v4l/yuv-formats.rst
++++ b/Documentation/userspace-api/media/v4l/yuv-formats.rst
+@@ -30,6 +30,7 @@ to brightness information.
+     pixfmt-y12
+     pixfmt-y12p
+     pixfmt-y14
++    pixfmt-y14p
+     pixfmt-y10b
+     pixfmt-y10p
+     pixfmt-y16
+--- a/drivers/media/v4l2-core/v4l2-ioctl.c
++++ b/drivers/media/v4l2-core/v4l2-ioctl.c
+@@ -1284,6 +1284,7 @@ static void v4l_fill_fmtdesc(struct v4l2
+ 	case V4L2_PIX_FMT_Y10BPACK:	descr = "10-bit Greyscale (Packed)"; break;
+ 	case V4L2_PIX_FMT_Y10P:		descr = "10-bit Greyscale (MIPI Packed)"; break;
+ 	case V4L2_PIX_FMT_Y12P:		descr = "12-bit Greyscale (MIPI Packed)"; break;
++	case V4L2_PIX_FMT_Y14P:		descr = "14-bit Greyscale (MIPI Packed)"; break;
+ 	case V4L2_PIX_FMT_Y8I:		descr = "Interleaved 8-bit Greyscale"; break;
+ 	case V4L2_PIX_FMT_Y12I:		descr = "Interleaved 12-bit Greyscale"; break;
+ 	case V4L2_PIX_FMT_Z16:		descr = "16-bit Depth"; break;
+--- a/include/uapi/linux/videodev2.h
++++ b/include/uapi/linux/videodev2.h
+@@ -581,6 +581,7 @@ struct v4l2_pix_format {
+ #define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
+ #define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */
+ #define V4L2_PIX_FMT_Y12P    v4l2_fourcc('Y', '1', '2', 'P') /* 12  Greyscale, MIPI RAW12 packed */
++#define V4L2_PIX_FMT_Y14P    v4l2_fourcc('Y', '1', '4', 'P') /* 14  Greyscale, MIPI RAW12 packed */
+ 
+ /* Palette formats */
+ #define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0280-media-bcm2835-unicam-Add-support-for-12bit-mono-pack.patch b/target/linux/bcm27xx/patches-5.10/950-0280-media-bcm2835-unicam-Add-support-for-12bit-mono-pack.patch
new file mode 100644
index 0000000000..02cbe77f7f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0280-media-bcm2835-unicam-Add-support-for-12bit-mono-pack.patch
@@ -0,0 +1,25 @@
+From 8fc548dd572d72cda45ffc52f12f42c93049029e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 17:53:32 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for 12bit mono
+ packed format
+
+Now that V4L2_PIX_FMT_Y12P is defined, allow passing raw 12bit
+mono packed data through the peripheral.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -336,7 +336,7 @@ static const struct unicam_fmt formats[]
+ 		.depth		= 10,
+ 		.csi_dt		= 0x2b,
+ 	}, {
+-		/* NB There is no packed V4L2 fourcc for this format. */
++		.fourcc		= V4L2_PIX_FMT_Y12P,
+ 		.repacked_fourcc = V4L2_PIX_FMT_Y12,
+ 		.code		= MEDIA_BUS_FMT_Y12_1X12,
+ 		.depth		= 12,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0281-media-bcm2835-unicam-Add-support-for-14bit-mono-sour.patch b/target/linux/bcm27xx/patches-5.10/950-0281-media-bcm2835-unicam-Add-support-for-14bit-mono-sour.patch
new file mode 100644
index 0000000000..8b50dceafe
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0281-media-bcm2835-unicam-Add-support-for-14bit-mono-sour.patch
@@ -0,0 +1,29 @@
+From dd3b1e96b9d27f26a0aedc2eb5eae08ba1a4ef48 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Jun 2020 18:03:47 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for 14bit mono
+ sources
+
+Now that V4L2_PIX_FMT_Y14 and V4L2_PIX_FMT_Y14P are defined,
+allow passing 14bit mono data through the peripheral.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -341,6 +341,12 @@ static const struct unicam_fmt formats[]
+ 		.code		= MEDIA_BUS_FMT_Y12_1X12,
+ 		.depth		= 12,
+ 		.csi_dt		= 0x2c,
++	}, {
++		.fourcc		= V4L2_PIX_FMT_Y14P,
++		.repacked_fourcc = V4L2_PIX_FMT_Y14,
++		.code		= MEDIA_BUS_FMT_Y14_1X14,
++		.depth		= 14,
++		.csi_dt		= 0x2d,
+ 	},
+ 	/* Embedded data format */
+ 	{
diff --git a/target/linux/bcm27xx/patches-5.10/950-0282-media-bcm2835-unicam-Add-support-for-unpacked-14bit-.patch b/target/linux/bcm27xx/patches-5.10/950-0282-media-bcm2835-unicam-Add-support-for-unpacked-14bit-.patch
new file mode 100644
index 0000000000..f6035e1139
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0282-media-bcm2835-unicam-Add-support-for-unpacked-14bit-.patch
@@ -0,0 +1,42 @@
+From bdc34f2e9bd66e717888a1867e540a6b4f85b55d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 1 Jul 2020 10:57:57 +0100
+Subject: [PATCH] media: bcm2835-unicam: Add support for unpacked 14bit
+ Bayer formats
+
+Now that the 14bit non-packed Bayer formats are defined, add them
+into the supported formats lookup table.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -299,21 +299,25 @@ static const struct unicam_fmt formats[]
+ 		.csi_dt		= 0x2c,
+ 	}, {
+ 		.fourcc		= V4L2_PIX_FMT_SBGGR14P,
++		.repacked_fourcc = V4L2_PIX_FMT_SBGGR14,
+ 		.code		= MEDIA_BUS_FMT_SBGGR14_1X14,
+ 		.depth		= 14,
+ 		.csi_dt		= 0x2d,
+ 	}, {
+ 		.fourcc		= V4L2_PIX_FMT_SGBRG14P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGBRG14,
+ 		.code		= MEDIA_BUS_FMT_SGBRG14_1X14,
+ 		.depth		= 14,
+ 		.csi_dt		= 0x2d,
+ 	}, {
+ 		.fourcc		= V4L2_PIX_FMT_SGRBG14P,
++		.repacked_fourcc = V4L2_PIX_FMT_SGRBG14,
+ 		.code		= MEDIA_BUS_FMT_SGRBG14_1X14,
+ 		.depth		= 14,
+ 		.csi_dt		= 0x2d,
+ 	}, {
+ 		.fourcc		= V4L2_PIX_FMT_SRGGB14P,
++		.repacked_fourcc = V4L2_PIX_FMT_SRGGB14,
+ 		.code		= MEDIA_BUS_FMT_SRGGB14_1X14,
+ 		.depth		= 14,
+ 		.csi_dt		= 0x2d,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch b/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch
new file mode 100644
index 0000000000..43a7bd90c8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0283-bcm2835-dma-Add-NO_WAIT_RESP-flag.patch
@@ -0,0 +1,54 @@
+From 33528413733fa956913cfe139dcd3ddd550839e4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 1 Jul 2020 20:28:27 +0100
+Subject: [PATCH] bcm2835-dma: Add NO_WAIT_RESP flag
+
+Use bit 27 of the dreq value (the second cell of the DT DMA descriptor)
+to request that the WAIT_RESP bit is not set.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/dma/bcm2835-dma.c | 11 ++++++++---
+ 1 file changed, 8 insertions(+), 3 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -165,6 +165,11 @@ struct bcm2835_desc {
+ #define BCM2835_DMA_WAIT(x)	((x & 31) << 21) /* add DMA-wait cycles */
+ #define BCM2835_DMA_NO_WIDE_BURSTS BIT(26) /* no 2 beat write bursts */
+ 
++/* A fake bit to request that the driver doesn't set the WAIT_RESP bit. */
++#define BCM2835_DMA_NO_WAIT_RESP BIT(27)
++#define WAIT_RESP(x) ((x & BCM2835_DMA_NO_WAIT_RESP) ? \
++		      0 : BCM2835_DMA_WAIT_RESP)
++
+ /* debug register bits */
+ #define BCM2835_DMA_DEBUG_LAST_NOT_SET_ERR	BIT(0)
+ #define BCM2835_DMA_DEBUG_FIFO_ERR		BIT(1)
+@@ -843,7 +848,7 @@ static struct dma_async_tx_descriptor *b
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+ 	u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC;
+-	u32 extra = BCM2835_DMA_INT_EN | BCM2835_DMA_WAIT_RESP;
++	u32 extra = BCM2835_DMA_INT_EN | WAIT_RESP(c->dreq);
+ 	size_t max_len = bcm2835_dma_max_frame_length(c);
+ 	size_t frames;
+ 
+@@ -873,7 +878,7 @@ static struct dma_async_tx_descriptor *b
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+ 	dma_addr_t src = 0, dst = 0;
+-	u32 info = BCM2835_DMA_WAIT_RESP;
++	u32 info = WAIT_RESP(c->dreq);
+ 	u32 extra = BCM2835_DMA_INT_EN;
+ 	size_t frames;
+ 
+@@ -935,7 +940,7 @@ static struct dma_async_tx_descriptor *b
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+ 	dma_addr_t src, dst;
+-	u32 info = BCM2835_DMA_WAIT_RESP;
++	u32 info = WAIT_RESP(c->dreq);
+ 	u32 extra = 0;
+ 	size_t max_len = bcm2835_dma_max_frame_length(c);
+ 	size_t frames;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0284-media-i2c-add-ov9281-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0284-media-i2c-add-ov9281-driver.patch
new file mode 100644
index 0000000000..b807db513e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0284-media-i2c-add-ov9281-driver.patch
@@ -0,0 +1,1218 @@
+From 63ef88ff48e864eed44d25e6edd61c743e6efd30 Mon Sep 17 00:00:00 2001
+From: Zefa Chen <zefa.chen@rock-chips.com>
+Date: Fri, 17 May 2019 18:23:03 +0800
+Subject: [PATCH] media: i2c: add ov9281 driver.
+
+Change-Id: I7b77250bbc56d2f861450cf77271ad15f9b88ab1
+Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
+---
+ drivers/media/i2c/Kconfig  |   11 +
+ drivers/media/i2c/Makefile |    1 +
+ drivers/media/i2c/ov9281.c | 1171 ++++++++++++++++++++++++++++++++++++
+ 3 files changed, 1183 insertions(+)
+ create mode 100644 drivers/media/i2c/ov9281.c
+
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -1040,6 +1040,17 @@ config VIDEO_OV9640
+ 	  This is a Video4Linux2 sensor driver for the OmniVision
+ 	  OV9640 camera sensor.
+ 
++config VIDEO_OV9281
++	tristate "OmniVision OV9281 sensor support"
++	depends on I2C && VIDEO_V4L2
++	depends on MEDIA_CAMERA_SUPPORT
++	help
++	  This is a Video4Linux2 sensor-level driver for the OmniVision
++	  OV9281 camera.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called ov9281.
++
+ config VIDEO_OV9650
+ 	tristate "OmniVision OV9650/OV9652 sensor support"
+ 	depends on I2C && VIDEO_V4L2
+--- a/drivers/media/i2c/Makefile
++++ b/drivers/media/i2c/Makefile
+@@ -81,6 +81,7 @@ obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
+ obj-$(CONFIG_VIDEO_OV772X) += ov772x.o
+ obj-$(CONFIG_VIDEO_OV7740) += ov7740.o
+ obj-$(CONFIG_VIDEO_OV8856) += ov8856.o
++obj-$(CONFIG_VIDEO_OV9281) += ov9281.o
+ obj-$(CONFIG_VIDEO_OV9640) += ov9640.o
+ obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
+ obj-$(CONFIG_VIDEO_OV13858) += ov13858.o
+--- /dev/null
++++ b/drivers/media/i2c/ov9281.c
+@@ -0,0 +1,1171 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * ov9281 driver
++ *
++ * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
++ */
++
++#include <linux/clk.h>
++#include <linux/device.h>
++#include <linux/delay.h>
++#include <linux/gpio/consumer.h>
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/pm_runtime.h>
++#include <linux/regulator/consumer.h>
++#include <linux/sysfs.h>
++#include <linux/slab.h>
++#include <linux/rk-camera-module.h>
++#include <media/media-entity.h>
++#include <media/v4l2-async.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-subdev.h>
++#include <linux/pinctrl/consumer.h>
++
++#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x0)
++
++#ifndef V4L2_CID_DIGITAL_GAIN
++#define V4L2_CID_DIGITAL_GAIN		V4L2_CID_GAIN
++#endif
++
++#define OV9281_LINK_FREQ_400MHZ		400000000
++/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
++#define OV9281_PIXEL_RATE		(OV9281_LINK_FREQ_400MHZ * 2 * 2 / 10)
++#define OV9281_XVCLK_FREQ		24000000
++
++#define CHIP_ID				0x9281
++#define OV9281_REG_CHIP_ID		0x300a
++
++#define OV9281_REG_CTRL_MODE		0x0100
++#define OV9281_MODE_SW_STANDBY		0x0
++#define OV9281_MODE_STREAMING		BIT(0)
++
++#define OV9281_REG_EXPOSURE		0x3500
++#define	OV9281_EXPOSURE_MIN		4
++#define	OV9281_EXPOSURE_STEP		1
++#define OV9281_VTS_MAX			0x7fff
++
++#define OV9281_REG_GAIN_H		0x3508
++#define OV9281_REG_GAIN_L		0x3509
++#define OV9281_GAIN_H_MASK		0x07
++#define OV9281_GAIN_H_SHIFT		8
++#define OV9281_GAIN_L_MASK		0xff
++#define OV9281_GAIN_MIN			0x10
++#define OV9281_GAIN_MAX			0xf8
++#define OV9281_GAIN_STEP		1
++#define OV9281_GAIN_DEFAULT		0x10
++
++#define OV9281_REG_TEST_PATTERN		0x5e00
++#define OV9281_TEST_PATTERN_ENABLE	0x80
++#define OV9281_TEST_PATTERN_DISABLE	0x0
++
++#define OV9281_REG_VTS			0x380e
++
++#define REG_NULL			0xFFFF
++
++#define OV9281_REG_VALUE_08BIT		1
++#define OV9281_REG_VALUE_16BIT		2
++#define OV9281_REG_VALUE_24BIT		3
++
++#define OV9281_LANES			2
++#define OV9281_BITS_PER_SAMPLE		10
++
++#define OF_CAMERA_PINCTRL_STATE_DEFAULT	"rockchip,camera_default"
++#define OF_CAMERA_PINCTRL_STATE_SLEEP	"rockchip,camera_sleep"
++
++#define OV9281_NAME			"ov9281"
++
++static const char * const ov9281_supply_names[] = {
++	"avdd",		/* Analog power */
++	"dovdd",	/* Digital I/O power */
++	"dvdd",		/* Digital core power */
++};
++
++#define OV9281_NUM_SUPPLIES ARRAY_SIZE(ov9281_supply_names)
++
++struct regval {
++	u16 addr;
++	u8 val;
++};
++
++struct ov9281_mode {
++	u32 width;
++	u32 height;
++	u32 max_fps;
++	u32 hts_def;
++	u32 vts_def;
++	u32 exp_def;
++	const struct regval *reg_list;
++};
++
++struct ov9281 {
++	struct i2c_client	*client;
++	struct clk		*xvclk;
++	struct gpio_desc	*reset_gpio;
++	struct gpio_desc	*pwdn_gpio;
++	struct regulator_bulk_data supplies[OV9281_NUM_SUPPLIES];
++
++	struct pinctrl		*pinctrl;
++	struct pinctrl_state	*pins_default;
++	struct pinctrl_state	*pins_sleep;
++
++	struct v4l2_subdev	subdev;
++	struct media_pad	pad;
++	struct v4l2_ctrl_handler ctrl_handler;
++	struct v4l2_ctrl	*exposure;
++	struct v4l2_ctrl	*anal_gain;
++	struct v4l2_ctrl	*digi_gain;
++	struct v4l2_ctrl	*hblank;
++	struct v4l2_ctrl	*vblank;
++	struct v4l2_ctrl	*test_pattern;
++	struct mutex		mutex;
++	bool			streaming;
++	bool			power_on;
++	const struct ov9281_mode *cur_mode;
++	u32			module_index;
++	const char		*module_facing;
++	const char		*module_name;
++	const char		*len_name;
++};
++
++#define to_ov9281(sd) container_of(sd, struct ov9281, subdev)
++
++/*
++ * Xclk 24Mhz
++ */
++static const struct regval ov9281_global_regs[] = {
++	{REG_NULL, 0x00},
++};
++
++/*
++ * Xclk 24Mhz
++ * max_framerate 120fps
++ * mipi_datarate per lane 800Mbps
++ */
++static const struct regval ov9281_1280x800_regs[] = {
++	{0x0103, 0x01},
++	{0x0302, 0x32},
++	{0x030d, 0x50},
++	{0x030e, 0x02},
++	{0x3001, 0x00},
++	{0x3004, 0x00},
++	{0x3005, 0x00},
++	{0x3006, 0x04},
++	{0x3011, 0x0a},
++	{0x3013, 0x18},
++	{0x3022, 0x01},
++	{0x3023, 0x00},
++	{0x302c, 0x00},
++	{0x302f, 0x00},
++	{0x3030, 0x04},
++	{0x3039, 0x32},
++	{0x303a, 0x00},
++	{0x303f, 0x01},
++	{0x3500, 0x00},
++	{0x3501, 0x2a},
++	{0x3502, 0x90},
++	{0x3503, 0x08},
++	{0x3505, 0x8c},
++	{0x3507, 0x03},
++	{0x3508, 0x00},
++	{0x3509, 0x10},
++	{0x3610, 0x80},
++	{0x3611, 0xa0},
++	{0x3620, 0x6f},
++	{0x3632, 0x56},
++	{0x3633, 0x78},
++	{0x3662, 0x05},
++	{0x3666, 0x00},
++	{0x366f, 0x5a},
++	{0x3680, 0x84},
++	{0x3712, 0x80},
++	{0x372d, 0x22},
++	{0x3731, 0x80},
++	{0x3732, 0x30},
++	{0x3778, 0x00},
++	{0x377d, 0x22},
++	{0x3788, 0x02},
++	{0x3789, 0xa4},
++	{0x378a, 0x00},
++	{0x378b, 0x4a},
++	{0x3799, 0x20},
++	{0x3800, 0x00},
++	{0x3801, 0x00},
++	{0x3802, 0x00},
++	{0x3803, 0x00},
++	{0x3804, 0x05},
++	{0x3805, 0x0f},
++	{0x3806, 0x03},
++	{0x3807, 0x2f},
++	{0x3808, 0x05},
++	{0x3809, 0x00},
++	{0x380a, 0x03},
++	{0x380b, 0x20},
++	{0x380c, 0x02},
++	{0x380d, 0xd8},
++	{0x380e, 0x03},
++	{0x380f, 0x8e},
++	{0x3810, 0x00},
++	{0x3811, 0x08},
++	{0x3812, 0x00},
++	{0x3813, 0x08},
++	{0x3814, 0x11},
++	{0x3815, 0x11},
++	{0x3820, 0x40},
++	{0x3821, 0x00},
++	{0x3881, 0x42},
++	{0x38b1, 0x00},
++	{0x3920, 0xff},
++	{0x4003, 0x40},
++	{0x4008, 0x04},
++	{0x4009, 0x0b},
++	{0x400c, 0x00},
++	{0x400d, 0x07},
++	{0x4010, 0x40},
++	{0x4043, 0x40},
++	{0x4307, 0x30},
++	{0x4317, 0x00},
++	{0x4501, 0x00},
++	{0x4507, 0x00},
++	{0x4509, 0x00},
++	{0x450a, 0x08},
++	{0x4601, 0x04},
++	{0x470f, 0x00},
++	{0x4f07, 0x00},
++	{0x4800, 0x00},
++	{0x5000, 0x9f},
++	{0x5001, 0x00},
++	{0x5e00, 0x00},
++	{0x5d00, 0x07},
++	{0x5d01, 0x00},
++	{REG_NULL, 0x00},
++};
++
++static const struct ov9281_mode supported_modes[] = {
++	{
++		.width = 1280,
++		.height = 800,
++		.max_fps = 120,
++		.exp_def = 0x0320,
++		.hts_def = 0x0b60,//0x2d8*4
++		.vts_def = 0x038e,
++		.reg_list = ov9281_1280x800_regs,
++	},
++};
++
++static const s64 link_freq_menu_items[] = {
++	OV9281_LINK_FREQ_400MHZ
++};
++
++static const char * const ov9281_test_pattern_menu[] = {
++	"Disabled",
++	"Vertical Color Bar Type 1",
++	"Vertical Color Bar Type 2",
++	"Vertical Color Bar Type 3",
++	"Vertical Color Bar Type 4"
++};
++
++/* Write registers up to 4 at a time */
++static int ov9281_write_reg(struct i2c_client *client, u16 reg,
++			    u32 len, u32 val)
++{
++	u32 buf_i, val_i;
++	u8 buf[6];
++	u8 *val_p;
++	__be32 val_be;
++
++	if (len > 4)
++		return -EINVAL;
++
++	buf[0] = reg >> 8;
++	buf[1] = reg & 0xff;
++
++	val_be = cpu_to_be32(val);
++	val_p = (u8 *)&val_be;
++	buf_i = 2;
++	val_i = 4 - len;
++
++	while (val_i < 4)
++		buf[buf_i++] = val_p[val_i++];
++
++	if (i2c_master_send(client, buf, len + 2) != len + 2)
++		return -EIO;
++
++	return 0;
++}
++
++static int ov9281_write_array(struct i2c_client *client,
++			      const struct regval *regs)
++{
++	u32 i;
++	int ret = 0;
++
++	for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
++		ret = ov9281_write_reg(client, regs[i].addr,
++				       OV9281_REG_VALUE_08BIT, regs[i].val);
++
++	return ret;
++}
++
++/* Read registers up to 4 at a time */
++static int ov9281_read_reg(struct i2c_client *client, u16 reg, unsigned int len,
++			   u32 *val)
++{
++	struct i2c_msg msgs[2];
++	u8 *data_be_p;
++	__be32 data_be = 0;
++	__be16 reg_addr_be = cpu_to_be16(reg);
++	int ret;
++
++	if (len > 4 || !len)
++		return -EINVAL;
++
++	data_be_p = (u8 *)&data_be;
++	/* Write register address */
++	msgs[0].addr = client->addr;
++	msgs[0].flags = 0;
++	msgs[0].len = 2;
++	msgs[0].buf = (u8 *)&reg_addr_be;
++
++	/* Read data from register */
++	msgs[1].addr = client->addr;
++	msgs[1].flags = I2C_M_RD;
++	msgs[1].len = len;
++	msgs[1].buf = &data_be_p[4 - len];
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++	if (ret != ARRAY_SIZE(msgs))
++		return -EIO;
++
++	*val = be32_to_cpu(data_be);
++
++	return 0;
++}
++
++static int ov9281_get_reso_dist(const struct ov9281_mode *mode,
++				struct v4l2_mbus_framefmt *framefmt)
++{
++	return abs(mode->width - framefmt->width) +
++	       abs(mode->height - framefmt->height);
++}
++
++static const struct ov9281_mode *
++ov9281_find_best_fit(struct v4l2_subdev_format *fmt)
++{
++	struct v4l2_mbus_framefmt *framefmt = &fmt->format;
++	int dist;
++	int cur_best_fit = 0;
++	int cur_best_fit_dist = -1;
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
++		dist = ov9281_get_reso_dist(&supported_modes[i], framefmt);
++		if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
++			cur_best_fit_dist = dist;
++			cur_best_fit = i;
++		}
++	}
++
++	return &supported_modes[cur_best_fit];
++}
++
++static int ov9281_set_fmt(struct v4l2_subdev *sd,
++			  struct v4l2_subdev_pad_config *cfg,
++			  struct v4l2_subdev_format *fmt)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	const struct ov9281_mode *mode;
++	s64 h_blank, vblank_def;
++
++	mutex_lock(&ov9281->mutex);
++
++	mode = ov9281_find_best_fit(fmt);
++	fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
++	fmt->format.width = mode->width;
++	fmt->format.height = mode->height;
++	fmt->format.field = V4L2_FIELD_NONE;
++	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
++		*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
++#else
++		mutex_unlock(&ov9281->mutex);
++		return -ENOTTY;
++#endif
++	} else {
++		ov9281->cur_mode = mode;
++		h_blank = mode->hts_def - mode->width;
++		__v4l2_ctrl_modify_range(ov9281->hblank, h_blank,
++					 h_blank, 1, h_blank);
++		vblank_def = mode->vts_def - mode->height;
++		__v4l2_ctrl_modify_range(ov9281->vblank, vblank_def,
++					 OV9281_VTS_MAX - mode->height,
++					 1, vblank_def);
++	}
++
++	mutex_unlock(&ov9281->mutex);
++
++	return 0;
++}
++
++static int ov9281_get_fmt(struct v4l2_subdev *sd,
++			  struct v4l2_subdev_pad_config *cfg,
++			  struct v4l2_subdev_format *fmt)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	const struct ov9281_mode *mode = ov9281->cur_mode;
++
++	mutex_lock(&ov9281->mutex);
++	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
++		fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
++#else
++		mutex_unlock(&ov9281->mutex);
++		return -ENOTTY;
++#endif
++	} else {
++		fmt->format.width = mode->width;
++		fmt->format.height = mode->height;
++		fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
++		fmt->format.field = V4L2_FIELD_NONE;
++	}
++	mutex_unlock(&ov9281->mutex);
++
++	return 0;
++}
++
++static int ov9281_enum_mbus_code(struct v4l2_subdev *sd,
++				 struct v4l2_subdev_pad_config *cfg,
++				 struct v4l2_subdev_mbus_code_enum *code)
++{
++	if (code->index != 0)
++		return -EINVAL;
++	code->code = MEDIA_BUS_FMT_Y10_1X10;
++
++	return 0;
++}
++
++static int ov9281_enum_frame_sizes(struct v4l2_subdev *sd,
++				   struct v4l2_subdev_pad_config *cfg,
++				   struct v4l2_subdev_frame_size_enum *fse)
++{
++	if (fse->index >= ARRAY_SIZE(supported_modes))
++		return -EINVAL;
++
++	if (fse->code != MEDIA_BUS_FMT_Y10_1X10)
++		return -EINVAL;
++
++	fse->min_width  = supported_modes[fse->index].width;
++	fse->max_width  = supported_modes[fse->index].width;
++	fse->max_height = supported_modes[fse->index].height;
++	fse->min_height = supported_modes[fse->index].height;
++
++	return 0;
++}
++
++static int ov9281_enable_test_pattern(struct ov9281 *ov9281, u32 pattern)
++{
++	u32 val;
++
++	if (pattern)
++		val = (pattern - 1) | OV9281_TEST_PATTERN_ENABLE;
++	else
++		val = OV9281_TEST_PATTERN_DISABLE;
++
++	return ov9281_write_reg(ov9281->client, OV9281_REG_TEST_PATTERN,
++				OV9281_REG_VALUE_08BIT, val);
++}
++
++static int OV9281_g_frame_interval(struct v4l2_subdev *sd,
++				   struct v4l2_subdev_frame_interval *fi)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	const struct ov9281_mode *mode = ov9281->cur_mode;
++
++	mutex_lock(&ov9281->mutex);
++	fi->interval.numerator = 10000;
++	fi->interval.denominator = mode->max_fps * 10000;
++	mutex_unlock(&ov9281->mutex);
++
++	return 0;
++}
++
++static void ov9281_get_module_inf(struct ov9281 *ov9281,
++				  struct rkmodule_inf *inf)
++{
++	memset(inf, 0, sizeof(*inf));
++	strlcpy(inf->base.sensor, OV9281_NAME, sizeof(inf->base.sensor));
++	strlcpy(inf->base.module, ov9281->module_name,
++		sizeof(inf->base.module));
++	strlcpy(inf->base.lens, ov9281->len_name, sizeof(inf->base.lens));
++}
++
++static long ov9281_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	long ret = 0;
++
++	switch (cmd) {
++	case RKMODULE_GET_MODULE_INFO:
++		ov9281_get_module_inf(ov9281, (struct rkmodule_inf *)arg);
++		break;
++	default:
++		ret = -ENOIOCTLCMD;
++		break;
++	}
++
++	return ret;
++}
++
++#ifdef CONFIG_COMPAT
++static long ov9281_compat_ioctl32(struct v4l2_subdev *sd,
++				  unsigned int cmd, unsigned long arg)
++{
++	void __user *up = compat_ptr(arg);
++	struct rkmodule_inf *inf;
++	struct rkmodule_awb_cfg *cfg;
++	long ret;
++
++	switch (cmd) {
++	case RKMODULE_GET_MODULE_INFO:
++		inf = kzalloc(sizeof(*inf), GFP_KERNEL);
++		if (!inf) {
++			ret = -ENOMEM;
++			return ret;
++		}
++
++		ret = ov9281_ioctl(sd, cmd, inf);
++		if (!ret)
++			ret = copy_to_user(up, inf, sizeof(*inf));
++		kfree(inf);
++		break;
++	case RKMODULE_AWB_CFG:
++		cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
++		if (!cfg) {
++			ret = -ENOMEM;
++			return ret;
++		}
++
++		ret = copy_from_user(cfg, up, sizeof(*cfg));
++		if (!ret)
++			ret = ov9281_ioctl(sd, cmd, cfg);
++		kfree(cfg);
++		break;
++	default:
++		ret = -ENOIOCTLCMD;
++		break;
++	}
++
++	return ret;
++}
++#endif
++
++static int __ov9281_start_stream(struct ov9281 *ov9281)
++{
++	int ret;
++
++	ret = ov9281_write_array(ov9281->client, ov9281->cur_mode->reg_list);
++	if (ret)
++		return ret;
++
++	/* In case these controls are set before streaming */
++	mutex_unlock(&ov9281->mutex);
++	ret = v4l2_ctrl_handler_setup(&ov9281->ctrl_handler);
++	mutex_lock(&ov9281->mutex);
++	if (ret)
++		return ret;
++
++	return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE,
++				OV9281_REG_VALUE_08BIT, OV9281_MODE_STREAMING);
++}
++
++static int __ov9281_stop_stream(struct ov9281 *ov9281)
++{
++	return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE,
++				OV9281_REG_VALUE_08BIT, OV9281_MODE_SW_STANDBY);
++}
++
++static int ov9281_s_stream(struct v4l2_subdev *sd, int on)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	struct i2c_client *client = ov9281->client;
++	int ret = 0;
++
++	mutex_lock(&ov9281->mutex);
++	on = !!on;
++	if (on == ov9281->streaming)
++		goto unlock_and_return;
++
++	if (on) {
++		ret = pm_runtime_get_sync(&client->dev);
++		if (ret < 0) {
++			pm_runtime_put_noidle(&client->dev);
++			goto unlock_and_return;
++		}
++
++		ret = __ov9281_start_stream(ov9281);
++		if (ret) {
++			v4l2_err(sd, "start stream failed while write regs\n");
++			pm_runtime_put(&client->dev);
++			goto unlock_and_return;
++		}
++	} else {
++		__ov9281_stop_stream(ov9281);
++		pm_runtime_put(&client->dev);
++	}
++
++	ov9281->streaming = on;
++
++unlock_and_return:
++	mutex_unlock(&ov9281->mutex);
++
++	return ret;
++}
++
++static int ov9281_s_power(struct v4l2_subdev *sd, int on)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	struct i2c_client *client = ov9281->client;
++	int ret = 0;
++
++	mutex_lock(&ov9281->mutex);
++
++	/* If the power state is not modified - no work to do. */
++	if (ov9281->power_on == !!on)
++		goto unlock_and_return;
++
++	if (on) {
++		ret = pm_runtime_get_sync(&client->dev);
++		if (ret < 0) {
++			pm_runtime_put_noidle(&client->dev);
++			goto unlock_and_return;
++		}
++		ret = ov9281_write_array(ov9281->client, ov9281_global_regs);
++		if (ret) {
++			v4l2_err(sd, "could not set init registers\n");
++			pm_runtime_put_noidle(&client->dev);
++			goto unlock_and_return;
++		}
++		ov9281->power_on = true;
++	} else {
++		pm_runtime_put(&client->dev);
++		ov9281->power_on = false;
++	}
++
++unlock_and_return:
++	mutex_unlock(&ov9281->mutex);
++
++	return ret;
++}
++
++/* Calculate the delay in us by clock rate and clock cycles */
++static inline u32 ov9281_cal_delay(u32 cycles)
++{
++	return DIV_ROUND_UP(cycles, OV9281_XVCLK_FREQ / 1000 / 1000);
++}
++
++static int __ov9281_power_on(struct ov9281 *ov9281)
++{
++	int ret;
++	u32 delay_us;
++	struct device *dev = &ov9281->client->dev;
++
++	if (!IS_ERR_OR_NULL(ov9281->pins_default)) {
++		ret = pinctrl_select_state(ov9281->pinctrl,
++					   ov9281->pins_default);
++		if (ret < 0)
++			dev_err(dev, "could not set pins\n");
++	}
++
++	ret = clk_prepare_enable(ov9281->xvclk);
++	if (ret < 0) {
++		dev_err(dev, "Failed to enable xvclk\n");
++		return ret;
++	}
++
++	if (!IS_ERR(ov9281->reset_gpio))
++		gpiod_set_value_cansleep(ov9281->reset_gpio, 0);
++
++	ret = regulator_bulk_enable(OV9281_NUM_SUPPLIES, ov9281->supplies);
++	if (ret < 0) {
++		dev_err(dev, "Failed to enable regulators\n");
++		goto disable_clk;
++	}
++
++	if (!IS_ERR(ov9281->reset_gpio))
++		gpiod_set_value_cansleep(ov9281->reset_gpio, 1);
++
++	usleep_range(500, 1000);
++	if (!IS_ERR(ov9281->pwdn_gpio))
++		gpiod_set_value_cansleep(ov9281->pwdn_gpio, 1);
++
++	/* 8192 cycles prior to first SCCB transaction */
++	delay_us = ov9281_cal_delay(8192);
++	usleep_range(delay_us, delay_us * 2);
++
++	return 0;
++
++disable_clk:
++	clk_disable_unprepare(ov9281->xvclk);
++
++	return ret;
++}
++
++static void __ov9281_power_off(struct ov9281 *ov9281)
++{
++	int ret;
++	struct device *dev = &ov9281->client->dev;
++
++	if (!IS_ERR(ov9281->pwdn_gpio))
++		gpiod_set_value_cansleep(ov9281->pwdn_gpio, 0);
++	clk_disable_unprepare(ov9281->xvclk);
++	if (!IS_ERR(ov9281->reset_gpio))
++		gpiod_set_value_cansleep(ov9281->reset_gpio, 0);
++	if (!IS_ERR_OR_NULL(ov9281->pins_sleep)) {
++		ret = pinctrl_select_state(ov9281->pinctrl,
++					   ov9281->pins_sleep);
++		if (ret < 0)
++			dev_dbg(dev, "could not set pins\n");
++	}
++	regulator_bulk_disable(OV9281_NUM_SUPPLIES, ov9281->supplies);
++}
++
++static int ov9281_runtime_resume(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct ov9281 *ov9281 = to_ov9281(sd);
++
++	return __ov9281_power_on(ov9281);
++}
++
++static int ov9281_runtime_suspend(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct ov9281 *ov9281 = to_ov9281(sd);
++
++	__ov9281_power_off(ov9281);
++
++	return 0;
++}
++
++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
++static int ov9281_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
++{
++	struct ov9281 *ov9281 = to_ov9281(sd);
++	struct v4l2_mbus_framefmt *try_fmt =
++				v4l2_subdev_get_try_format(sd, fh->pad, 0);
++	const struct ov9281_mode *def_mode = &supported_modes[0];
++
++	mutex_lock(&ov9281->mutex);
++	/* Initialize try_fmt */
++	try_fmt->width = def_mode->width;
++	try_fmt->height = def_mode->height;
++	try_fmt->code = MEDIA_BUS_FMT_Y10_1X10;
++	try_fmt->field = V4L2_FIELD_NONE;
++
++	mutex_unlock(&ov9281->mutex);
++	/* No crop or compose */
++
++	return 0;
++}
++#endif
++
++static const struct dev_pm_ops ov9281_pm_ops = {
++	SET_RUNTIME_PM_OPS(ov9281_runtime_suspend,
++			   ov9281_runtime_resume, NULL)
++};
++
++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
++static const struct v4l2_subdev_internal_ops ov9281_internal_ops = {
++	.open = ov9281_open,
++};
++#endif
++
++static const struct v4l2_subdev_core_ops ov9281_core_ops = {
++	.s_power = ov9281_s_power,
++	.ioctl = ov9281_ioctl,
++#ifdef CONFIG_COMPAT
++	.compat_ioctl32 = ov9281_compat_ioctl32,
++#endif
++};
++
++static const struct v4l2_subdev_video_ops ov9281_video_ops = {
++	.s_stream = ov9281_s_stream,
++	.g_frame_interval = OV9281_g_frame_interval,
++};
++
++static const struct v4l2_subdev_pad_ops ov9281_pad_ops = {
++	.enum_mbus_code = ov9281_enum_mbus_code,
++	.enum_frame_size = ov9281_enum_frame_sizes,
++	.get_fmt = ov9281_get_fmt,
++	.set_fmt = ov9281_set_fmt,
++};
++
++static const struct v4l2_subdev_ops ov9281_subdev_ops = {
++	.core	= &ov9281_core_ops,
++	.video	= &ov9281_video_ops,
++	.pad	= &ov9281_pad_ops,
++};
++
++static int ov9281_set_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct ov9281 *ov9281 = container_of(ctrl->handler,
++					     struct ov9281, ctrl_handler);
++	struct i2c_client *client = ov9281->client;
++	s64 max;
++	int ret = 0;
++
++	/* Propagate change of current control to all related controls */
++	switch (ctrl->id) {
++	case V4L2_CID_VBLANK:
++		/* Update max exposure while meeting expected vblanking */
++		max = ov9281->cur_mode->height + ctrl->val - 4;
++		__v4l2_ctrl_modify_range(ov9281->exposure,
++					 ov9281->exposure->minimum, max,
++					 ov9281->exposure->step,
++					 ov9281->exposure->default_value);
++		break;
++	}
++
++	if (pm_runtime_get(&client->dev) <= 0)
++		return 0;
++
++	switch (ctrl->id) {
++	case V4L2_CID_EXPOSURE:
++		/* 4 least significant bits of expsoure are fractional part */
++		ret = ov9281_write_reg(ov9281->client, OV9281_REG_EXPOSURE,
++				       OV9281_REG_VALUE_24BIT, ctrl->val << 4);
++		break;
++	case V4L2_CID_ANALOGUE_GAIN:
++		ret = ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_H,
++				       OV9281_REG_VALUE_08BIT,
++				       (ctrl->val >> OV9281_GAIN_H_SHIFT) & OV9281_GAIN_H_MASK);
++		ret |= ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_L,
++				       OV9281_REG_VALUE_08BIT,
++				       ctrl->val & OV9281_GAIN_L_MASK);
++		break;
++	case V4L2_CID_VBLANK:
++		ret = ov9281_write_reg(ov9281->client, OV9281_REG_VTS,
++				       OV9281_REG_VALUE_16BIT,
++				       ctrl->val + ov9281->cur_mode->height);
++		break;
++	case V4L2_CID_TEST_PATTERN:
++		ret = ov9281_enable_test_pattern(ov9281, ctrl->val);
++		break;
++	default:
++		dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
++			 __func__, ctrl->id, ctrl->val);
++		break;
++	}
++
++	pm_runtime_put(&client->dev);
++
++	return ret;
++}
++
++static const struct v4l2_ctrl_ops ov9281_ctrl_ops = {
++	.s_ctrl = ov9281_set_ctrl,
++};
++
++static int ov9281_initialize_controls(struct ov9281 *ov9281)
++{
++	const struct ov9281_mode *mode;
++	struct v4l2_ctrl_handler *handler;
++	struct v4l2_ctrl *ctrl;
++	s64 exposure_max, vblank_def;
++	u32 h_blank;
++	int ret;
++
++	handler = &ov9281->ctrl_handler;
++	mode = ov9281->cur_mode;
++	ret = v4l2_ctrl_handler_init(handler, 8);
++	if (ret)
++		return ret;
++	handler->lock = &ov9281->mutex;
++
++	ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
++				      0, 0, link_freq_menu_items);
++	if (ctrl)
++		ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
++
++	v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
++			  0, OV9281_PIXEL_RATE, 1, OV9281_PIXEL_RATE);
++
++	h_blank = mode->hts_def - mode->width;
++	ov9281->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
++				h_blank, h_blank, 1, h_blank);
++	if (ov9281->hblank)
++		ov9281->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
++
++	vblank_def = mode->vts_def - mode->height;
++	ov9281->vblank = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
++				V4L2_CID_VBLANK, vblank_def,
++				OV9281_VTS_MAX - mode->height,
++				1, vblank_def);
++
++	exposure_max = mode->vts_def - 4;
++	ov9281->exposure = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
++				V4L2_CID_EXPOSURE, OV9281_EXPOSURE_MIN,
++				exposure_max, OV9281_EXPOSURE_STEP,
++				mode->exp_def);
++
++	ov9281->anal_gain = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
++				V4L2_CID_ANALOGUE_GAIN, OV9281_GAIN_MIN,
++				OV9281_GAIN_MAX, OV9281_GAIN_STEP,
++				OV9281_GAIN_DEFAULT);
++
++	ov9281->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
++				&ov9281_ctrl_ops, V4L2_CID_TEST_PATTERN,
++				ARRAY_SIZE(ov9281_test_pattern_menu) - 1,
++				0, 0, ov9281_test_pattern_menu);
++
++	if (handler->error) {
++		ret = handler->error;
++		dev_err(&ov9281->client->dev,
++			"Failed to init controls(%d)\n", ret);
++		goto err_free_handler;
++	}
++
++	ov9281->subdev.ctrl_handler = handler;
++
++	return 0;
++
++err_free_handler:
++	v4l2_ctrl_handler_free(handler);
++
++	return ret;
++}
++
++static int ov9281_check_sensor_id(struct ov9281 *ov9281,
++				  struct i2c_client *client)
++{
++	struct device *dev = &ov9281->client->dev;
++	u32 id = 0;
++	int ret;
++
++	ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID,
++			      OV9281_REG_VALUE_16BIT, &id);
++	if (id != CHIP_ID) {
++		dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
++		return -ENODEV;
++	}
++
++	dev_info(dev, "Detected OV%06x sensor\n", CHIP_ID);
++
++	return 0;
++}
++
++static int ov9281_configure_regulators(struct ov9281 *ov9281)
++{
++	unsigned int i;
++
++	for (i = 0; i < OV9281_NUM_SUPPLIES; i++)
++		ov9281->supplies[i].supply = ov9281_supply_names[i];
++
++	return devm_regulator_bulk_get(&ov9281->client->dev,
++				       OV9281_NUM_SUPPLIES,
++				       ov9281->supplies);
++}
++
++static int ov9281_probe(struct i2c_client *client,
++			const struct i2c_device_id *id)
++{
++	struct device *dev = &client->dev;
++	struct device_node *node = dev->of_node;
++	struct ov9281 *ov9281;
++	struct v4l2_subdev *sd;
++	char facing[2];
++	int ret;
++
++	dev_info(dev, "driver version: %02x.%02x.%02x",
++		DRIVER_VERSION >> 16,
++		(DRIVER_VERSION & 0xff00) >> 8,
++		DRIVER_VERSION & 0x00ff);
++
++	ov9281 = devm_kzalloc(dev, sizeof(*ov9281), GFP_KERNEL);
++	if (!ov9281)
++		return -ENOMEM;
++
++	ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
++				   &ov9281->module_index);
++	ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
++				       &ov9281->module_facing);
++	ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
++				       &ov9281->module_name);
++	ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
++				       &ov9281->len_name);
++	if (ret) {
++		dev_err(dev, "could not get module information!\n");
++		return -EINVAL;
++	}
++
++	ov9281->client = client;
++	ov9281->cur_mode = &supported_modes[0];
++
++	ov9281->xvclk = devm_clk_get(dev, "xvclk");
++	if (IS_ERR(ov9281->xvclk)) {
++		dev_err(dev, "Failed to get xvclk\n");
++		return -EINVAL;
++	}
++	ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ);
++	if (ret < 0) {
++		dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
++		return ret;
++	}
++	if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ)
++		dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
++
++	ov9281->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
++	if (IS_ERR(ov9281->reset_gpio))
++		dev_warn(dev, "Failed to get reset-gpios\n");
++
++	ov9281->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
++	if (IS_ERR(ov9281->pwdn_gpio))
++		dev_warn(dev, "Failed to get pwdn-gpios\n");
++
++	ov9281->pinctrl = devm_pinctrl_get(dev);
++	if (!IS_ERR(ov9281->pinctrl)) {
++		ov9281->pins_default =
++			pinctrl_lookup_state(ov9281->pinctrl,
++					     OF_CAMERA_PINCTRL_STATE_DEFAULT);
++		if (IS_ERR(ov9281->pins_default))
++			dev_err(dev, "could not get default pinstate\n");
++
++		ov9281->pins_sleep =
++			pinctrl_lookup_state(ov9281->pinctrl,
++					     OF_CAMERA_PINCTRL_STATE_SLEEP);
++		if (IS_ERR(ov9281->pins_sleep))
++			dev_err(dev, "could not get sleep pinstate\n");
++	} else {
++		dev_err(dev, "no pinctrl\n");
++	}
++
++	ret = ov9281_configure_regulators(ov9281);
++	if (ret) {
++		dev_err(dev, "Failed to get power regulators\n");
++		return ret;
++	}
++
++	mutex_init(&ov9281->mutex);
++
++	sd = &ov9281->subdev;
++	v4l2_i2c_subdev_init(sd, client, &ov9281_subdev_ops);
++	ret = ov9281_initialize_controls(ov9281);
++	if (ret)
++		goto err_destroy_mutex;
++
++	ret = __ov9281_power_on(ov9281);
++	if (ret)
++		goto err_free_handler;
++
++	ret = ov9281_check_sensor_id(ov9281, client);
++	if (ret)
++		goto err_power_off;
++
++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
++	sd->internal_ops = &ov9281_internal_ops;
++	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++#endif
++#if defined(CONFIG_MEDIA_CONTROLLER)
++	ov9281->pad.flags = MEDIA_PAD_FL_SOURCE;
++	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
++	ret = media_entity_init(&sd->entity, 1, &ov9281->pad, 0);
++	if (ret < 0)
++		goto err_power_off;
++#endif
++
++	memset(facing, 0, sizeof(facing));
++	if (strcmp(ov9281->module_facing, "back") == 0)
++		facing[0] = 'b';
++	else
++		facing[0] = 'f';
++
++	snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
++		 ov9281->module_index, facing,
++		 OV9281_NAME, dev_name(sd->dev));
++	ret = v4l2_async_register_subdev_sensor_common(sd);
++	if (ret) {
++		dev_err(dev, "v4l2 async register subdev failed\n");
++		goto err_clean_entity;
++	}
++
++	pm_runtime_set_active(dev);
++	pm_runtime_enable(dev);
++	pm_runtime_idle(dev);
++
++	return 0;
++
++err_clean_entity:
++#if defined(CONFIG_MEDIA_CONTROLLER)
++	media_entity_cleanup(&sd->entity);
++#endif
++err_power_off:
++	__ov9281_power_off(ov9281);
++err_free_handler:
++	v4l2_ctrl_handler_free(&ov9281->ctrl_handler);
++err_destroy_mutex:
++	mutex_destroy(&ov9281->mutex);
++
++	return ret;
++}
++
++static int ov9281_remove(struct i2c_client *client)
++{
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct ov9281 *ov9281 = to_ov9281(sd);
++
++	v4l2_async_unregister_subdev(sd);
++#if defined(CONFIG_MEDIA_CONTROLLER)
++	media_entity_cleanup(&sd->entity);
++#endif
++	v4l2_ctrl_handler_free(&ov9281->ctrl_handler);
++	mutex_destroy(&ov9281->mutex);
++
++	pm_runtime_disable(&client->dev);
++	if (!pm_runtime_status_suspended(&client->dev))
++		__ov9281_power_off(ov9281);
++	pm_runtime_set_suspended(&client->dev);
++
++	return 0;
++}
++
++#if IS_ENABLED(CONFIG_OF)
++static const struct of_device_id ov9281_of_match[] = {
++	{ .compatible = "ovti,ov9281" },
++	{},
++};
++MODULE_DEVICE_TABLE(of, ov9281_of_match);
++#endif
++
++static const struct i2c_device_id ov9281_match_id[] = {
++	{ "ovti,ov9281", 0 },
++	{ },
++};
++
++static struct i2c_driver ov9281_i2c_driver = {
++	.driver = {
++		.name = OV9281_NAME,
++		.pm = &ov9281_pm_ops,
++		.of_match_table = of_match_ptr(ov9281_of_match),
++	},
++	.probe		= &ov9281_probe,
++	.remove		= &ov9281_remove,
++	.id_table	= ov9281_match_id,
++};
++
++static int __init sensor_mod_init(void)
++{
++	return i2c_add_driver(&ov9281_i2c_driver);
++}
++
++static void __exit sensor_mod_exit(void)
++{
++	i2c_del_driver(&ov9281_i2c_driver);
++}
++
++device_initcall_sync(sensor_mod_init);
++module_exit(sensor_mod_exit);
++
++MODULE_DESCRIPTION("OmniVision ov9281 sensor driver");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0285-media-i2c-ov9281-fix-mclk-issue-when-probe-multiple-.patch b/target/linux/bcm27xx/patches-5.10/950-0285-media-i2c-ov9281-fix-mclk-issue-when-probe-multiple-.patch
new file mode 100644
index 0000000000..b444221198
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0285-media-i2c-ov9281-fix-mclk-issue-when-probe-multiple-.patch
@@ -0,0 +1,60 @@
+From ecaf713a6535e49f1eb4374f6241421e8e61d407 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 14 Apr 2020 15:47:09 +0100
+Subject: [PATCH] media: i2c: ov9281: fix mclk issue when probe
+ multiple camera.
+
+Takes the ov9281 part only from the Rockchip's patch.
+
+Change-Id: I30e833baf2c1bb07d6d87ddb3b00759ab45a90e4
+Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
+---
+ drivers/media/i2c/ov9281.c | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -3,6 +3,7 @@
+  * ov9281 driver
+  *
+  * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
++ * V0.0X01.0X02 fix mclk issue when probe multiple camera.
+  */
+ 
+ #include <linux/clk.h>
+@@ -22,7 +23,7 @@
+ #include <media/v4l2-subdev.h>
+ #include <linux/pinctrl/consumer.h>
+ 
+-#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x0)
++#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x2)
+ 
+ #ifndef V4L2_CID_DIGITAL_GAIN
+ #define V4L2_CID_DIGITAL_GAIN		V4L2_CID_GAIN
+@@ -676,6 +677,12 @@ static int __ov9281_power_on(struct ov92
+ 			dev_err(dev, "could not set pins\n");
+ 	}
+ 
++	ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ);
++	if (ret < 0)
++		dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
++	if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ)
++		dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
++
+ 	ret = clk_prepare_enable(ov9281->xvclk);
+ 	if (ret < 0) {
+ 		dev_err(dev, "Failed to enable xvclk\n");
+@@ -1008,13 +1015,6 @@ static int ov9281_probe(struct i2c_clien
+ 		dev_err(dev, "Failed to get xvclk\n");
+ 		return -EINVAL;
+ 	}
+-	ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ);
+-	if (ret < 0) {
+-		dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
+-		return ret;
+-	}
+-	if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ)
+-		dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
+ 
+ 	ov9281->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ 	if (IS_ERR(ov9281->reset_gpio))
diff --git a/target/linux/bcm27xx/patches-5.10/950-0286-media-i2c-ov9281-add-enum_frame_interval-function-fo.patch b/target/linux/bcm27xx/patches-5.10/950-0286-media-i2c-ov9281-add-enum_frame_interval-function-fo.patch
new file mode 100644
index 0000000000..aab12fe4b1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0286-media-i2c-ov9281-add-enum_frame_interval-function-fo.patch
@@ -0,0 +1,97 @@
+From ffb4500f4c368183fb71ce20698eb4bd25bc0ed7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 14 Apr 2020 15:51:50 +0100
+Subject: [PATCH] media: i2c: ov9281: add enum_frame_interval function
+ for iq tool 2.2 and hal3
+
+Adds the ov9281 parts of the Rockchip patch adding enum_frame_interval to
+a large number of drivers.
+
+Change-Id: I03344cd6cf278dd7c18fce8e97479089ef185a5c
+Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
+---
+ drivers/media/i2c/ov9281.c | 31 ++++++++++++++++++++++++++-----
+ 1 file changed, 26 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -4,6 +4,7 @@
+  *
+  * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+  * V0.0X01.0X02 fix mclk issue when probe multiple camera.
++ * V0.0X01.0X03 add enum_frame_interval function.
+  */
+ 
+ #include <linux/clk.h>
+@@ -23,7 +24,7 @@
+ #include <media/v4l2-subdev.h>
+ #include <linux/pinctrl/consumer.h>
+ 
+-#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x2)
++#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x3)
+ 
+ #ifndef V4L2_CID_DIGITAL_GAIN
+ #define V4L2_CID_DIGITAL_GAIN		V4L2_CID_GAIN
+@@ -92,7 +93,7 @@ struct regval {
+ struct ov9281_mode {
+ 	u32 width;
+ 	u32 height;
+-	u32 max_fps;
++	struct v4l2_fract max_fps;
+ 	u32 hts_def;
+ 	u32 vts_def;
+ 	u32 exp_def;
+@@ -246,7 +247,10 @@ static const struct ov9281_mode supporte
+ 	{
+ 		.width = 1280,
+ 		.height = 800,
+-		.max_fps = 120,
++		.max_fps = {
++			.numerator = 10000,
++			.denominator = 1200000,
++		},
+ 		.exp_def = 0x0320,
+ 		.hts_def = 0x0b60,//0x2d8*4
+ 		.vts_def = 0x038e,
+@@ -483,8 +487,7 @@ static int OV9281_g_frame_interval(struc
+ 	const struct ov9281_mode *mode = ov9281->cur_mode;
+ 
+ 	mutex_lock(&ov9281->mutex);
+-	fi->interval.numerator = 10000;
+-	fi->interval.denominator = mode->max_fps * 10000;
++	fi->interval = mode->max_fps;
+ 	mutex_unlock(&ov9281->mutex);
+ 
+ 	return 0;
+@@ -778,6 +781,23 @@ static int ov9281_open(struct v4l2_subde
+ }
+ #endif
+ 
++static int
++ov9281_enum_frame_interval(struct v4l2_subdev *sd,
++			   struct v4l2_subdev_pad_config *cfg,
++			   struct v4l2_subdev_frame_interval_enum *fie)
++{
++	if (fie->index >= ARRAY_SIZE(supported_modes))
++		return -EINVAL;
++
++	if (fie->code != MEDIA_BUS_FMT_Y10_1X10)
++		return -EINVAL;
++
++	fie->width = supported_modes[fie->index].width;
++	fie->height = supported_modes[fie->index].height;
++	fie->interval = supported_modes[fie->index].max_fps;
++	return 0;
++}
++
+ static const struct dev_pm_ops ov9281_pm_ops = {
+ 	SET_RUNTIME_PM_OPS(ov9281_runtime_suspend,
+ 			   ov9281_runtime_resume, NULL)
+@@ -805,6 +825,7 @@ static const struct v4l2_subdev_video_op
+ static const struct v4l2_subdev_pad_ops ov9281_pad_ops = {
+ 	.enum_mbus_code = ov9281_enum_mbus_code,
+ 	.enum_frame_size = ov9281_enum_frame_sizes,
++	.enum_frame_interval = ov9281_enum_frame_interval,
+ 	.get_fmt = ov9281_get_fmt,
+ 	.set_fmt = ov9281_set_fmt,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0287-media-i2c-ov9281-Fixup-for-recent-kernel-releases-an.patch b/target/linux/bcm27xx/patches-5.10/950-0287-media-i2c-ov9281-Fixup-for-recent-kernel-releases-an.patch
new file mode 100644
index 0000000000..5e09d99ff9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0287-media-i2c-ov9281-Fixup-for-recent-kernel-releases-an.patch
@@ -0,0 +1,681 @@
+From a73ced40f7ca1b0735e5d0d1c45087e02023a618 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 14 Apr 2020 16:12:33 +0100
+Subject: [PATCH] media: i2c: ov9281: Fixup for recent kernel releases,
+ and remove custom code
+
+The Rockchip driver was based on a 4.4 kernel, and had several custom
+Rockchip parts.
+
+Update to 5.4 kernel APIs, with the relevant controls required by
+libcamera, and remove custom Rockchip parts.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 361 +++++++++++++------------------------
+ 1 file changed, 122 insertions(+), 239 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -1,6 +1,11 @@
+ // SPDX-License-Identifier: GPL-2.0
+ /*
+- * ov9281 driver
++ * Omnivision OV9281 1280x800 global shutter image sensor driver
++ *
++ * This driver has been taken from
++ * https://github.com/rockchip-linux/kernel/blob/develop-4.4/drivers/media/i2c/ov9281.c
++ * cleaned up, made to compile against mainline kernels instead of the Rockchip
++ * vendor kernel, and the relevant controls added to work with libcamera.
+  *
+  * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+  * V0.0X01.0X02 fix mclk issue when probe multiple camera.
+@@ -17,22 +22,18 @@
+ #include <linux/regulator/consumer.h>
+ #include <linux/sysfs.h>
+ #include <linux/slab.h>
+-#include <linux/rk-camera-module.h>
+ #include <media/media-entity.h>
+ #include <media/v4l2-async.h>
+ #include <media/v4l2-ctrls.h>
+ #include <media/v4l2-subdev.h>
+-#include <linux/pinctrl/consumer.h>
+-
+-#define DRIVER_VERSION			KERNEL_VERSION(0, 0x01, 0x3)
+-
+-#ifndef V4L2_CID_DIGITAL_GAIN
+-#define V4L2_CID_DIGITAL_GAIN		V4L2_CID_GAIN
+-#endif
+ 
+ #define OV9281_LINK_FREQ_400MHZ		400000000
++#define OV9281_LANES			2
++#define OV9281_BITS_PER_SAMPLE		10
++
+ /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
+-#define OV9281_PIXEL_RATE		(OV9281_LINK_FREQ_400MHZ * 2 * 2 / 10)
++#define OV9281_PIXEL_RATE		(OV9281_LINK_FREQ_400MHZ * 2 * \
++					 OV9281_LANES / OV9281_BITS_PER_SAMPLE)
+ #define OV9281_XVCLK_FREQ		24000000
+ 
+ #define CHIP_ID				0x9281
+@@ -63,18 +64,24 @@
+ 
+ #define OV9281_REG_VTS			0x380e
+ 
++/*
++ * OV9281 native and active pixel array size.
++ * Datasheet not available to confirm these values, so assume there are no
++ * border pixels.
++ */
++#define OV9281_NATIVE_WIDTH		1280U
++#define OV9281_NATIVE_HEIGHT		800U
++#define OV9281_PIXEL_ARRAY_LEFT		0U
++#define OV9281_PIXEL_ARRAY_TOP		0U
++#define OV9281_PIXEL_ARRAY_WIDTH	1280U
++#define OV9281_PIXEL_ARRAY_HEIGHT	800U
++
+ #define REG_NULL			0xFFFF
+ 
+ #define OV9281_REG_VALUE_08BIT		1
+ #define OV9281_REG_VALUE_16BIT		2
+ #define OV9281_REG_VALUE_24BIT		3
+ 
+-#define OV9281_LANES			2
+-#define OV9281_BITS_PER_SAMPLE		10
+-
+-#define OF_CAMERA_PINCTRL_STATE_DEFAULT	"rockchip,camera_default"
+-#define OF_CAMERA_PINCTRL_STATE_SLEEP	"rockchip,camera_sleep"
+-
+ #define OV9281_NAME			"ov9281"
+ 
+ static const char * const ov9281_supply_names[] = {
+@@ -93,10 +100,10 @@ struct regval {
+ struct ov9281_mode {
+ 	u32 width;
+ 	u32 height;
+-	struct v4l2_fract max_fps;
+ 	u32 hts_def;
+ 	u32 vts_def;
+ 	u32 exp_def;
++	struct v4l2_rect crop;
+ 	const struct regval *reg_list;
+ };
+ 
+@@ -107,10 +114,6 @@ struct ov9281 {
+ 	struct gpio_desc	*pwdn_gpio;
+ 	struct regulator_bulk_data supplies[OV9281_NUM_SUPPLIES];
+ 
+-	struct pinctrl		*pinctrl;
+-	struct pinctrl_state	*pins_default;
+-	struct pinctrl_state	*pins_sleep;
+-
+ 	struct v4l2_subdev	subdev;
+ 	struct media_pad	pad;
+ 	struct v4l2_ctrl_handler ctrl_handler;
+@@ -124,23 +127,12 @@ struct ov9281 {
+ 	bool			streaming;
+ 	bool			power_on;
+ 	const struct ov9281_mode *cur_mode;
+-	u32			module_index;
+-	const char		*module_facing;
+-	const char		*module_name;
+-	const char		*len_name;
+ };
+ 
+ #define to_ov9281(sd) container_of(sd, struct ov9281, subdev)
+ 
+ /*
+  * Xclk 24Mhz
+- */
+-static const struct regval ov9281_global_regs[] = {
+-	{REG_NULL, 0x00},
+-};
+-
+-/*
+- * Xclk 24Mhz
+  * max_framerate 120fps
+  * mipi_datarate per lane 800Mbps
+  */
+@@ -247,13 +239,15 @@ static const struct ov9281_mode supporte
+ 	{
+ 		.width = 1280,
+ 		.height = 800,
+-		.max_fps = {
+-			.numerator = 10000,
+-			.denominator = 1200000,
+-		},
+ 		.exp_def = 0x0320,
+-		.hts_def = 0x0b60,//0x2d8*4
++		.hts_def = 0x05b0,	/* 0x2d8*2 */
+ 		.vts_def = 0x038e,
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 1280,
++			.height = 800
++		},
+ 		.reg_list = ov9281_1280x800_regs,
+ 	},
+ };
+@@ -389,22 +383,28 @@ static int ov9281_set_fmt(struct v4l2_su
+ 	fmt->format.width = mode->width;
+ 	fmt->format.height = mode->height;
+ 	fmt->format.field = V4L2_FIELD_NONE;
++	fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
++	fmt->format.ycbcr_enc =
++			V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->format.colorspace);
++	fmt->format.quantization =
++		V4L2_MAP_QUANTIZATION_DEFAULT(true, fmt->format.colorspace,
++					      fmt->format.ycbcr_enc);
++	fmt->format.xfer_func =
++		V4L2_MAP_XFER_FUNC_DEFAULT(fmt->format.colorspace);
++
+ 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ 		*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
+-#else
+-		mutex_unlock(&ov9281->mutex);
+-		return -ENOTTY;
+-#endif
+ 	} else {
+ 		ov9281->cur_mode = mode;
+ 		h_blank = mode->hts_def - mode->width;
+ 		__v4l2_ctrl_modify_range(ov9281->hblank, h_blank,
+ 					 h_blank, 1, h_blank);
++		__v4l2_ctrl_s_ctrl(ov9281->hblank, h_blank);
+ 		vblank_def = mode->vts_def - mode->height;
+ 		__v4l2_ctrl_modify_range(ov9281->vblank, vblank_def,
+ 					 OV9281_VTS_MAX - mode->height,
+ 					 1, vblank_def);
++		__v4l2_ctrl_s_ctrl(ov9281->vblank, vblank_def);
+ 	}
+ 
+ 	mutex_unlock(&ov9281->mutex);
+@@ -421,17 +421,21 @@ static int ov9281_get_fmt(struct v4l2_su
+ 
+ 	mutex_lock(&ov9281->mutex);
+ 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ 		fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+-#else
+-		mutex_unlock(&ov9281->mutex);
+-		return -ENOTTY;
+-#endif
+ 	} else {
+ 		fmt->format.width = mode->width;
+ 		fmt->format.height = mode->height;
+ 		fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
+ 		fmt->format.field = V4L2_FIELD_NONE;
++		fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
++		fmt->format.ycbcr_enc =
++			V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->format.colorspace);
++		fmt->format.quantization =
++			V4L2_MAP_QUANTIZATION_DEFAULT(true,
++						      fmt->format.colorspace,
++						      fmt->format.ycbcr_enc);
++		fmt->format.xfer_func =
++			V4L2_MAP_XFER_FUNC_DEFAULT(fmt->format.colorspace);
+ 	}
+ 	mutex_unlock(&ov9281->mutex);
+ 
+@@ -442,7 +446,7 @@ static int ov9281_enum_mbus_code(struct
+ 				 struct v4l2_subdev_pad_config *cfg,
+ 				 struct v4l2_subdev_mbus_code_enum *code)
+ {
+-	if (code->index != 0)
++	if (code->index)
+ 		return -EINVAL;
+ 	code->code = MEDIA_BUS_FMT_Y10_1X10;
+ 
+@@ -480,88 +484,56 @@ static int ov9281_enable_test_pattern(st
+ 				OV9281_REG_VALUE_08BIT, val);
+ }
+ 
+-static int OV9281_g_frame_interval(struct v4l2_subdev *sd,
+-				   struct v4l2_subdev_frame_interval *fi)
+-{
+-	struct ov9281 *ov9281 = to_ov9281(sd);
+-	const struct ov9281_mode *mode = ov9281->cur_mode;
+-
+-	mutex_lock(&ov9281->mutex);
+-	fi->interval = mode->max_fps;
+-	mutex_unlock(&ov9281->mutex);
++static const struct v4l2_rect *
++__ov9281_get_pad_crop(struct ov9281 *ov9281, struct v4l2_subdev_pad_config *cfg,
++		      unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++	switch (which) {
++	case V4L2_SUBDEV_FORMAT_TRY:
++		return v4l2_subdev_get_try_crop(&ov9281->subdev, cfg, pad);
++	case V4L2_SUBDEV_FORMAT_ACTIVE:
++		return &ov9281->cur_mode->crop;
++	}
+ 
+-	return 0;
++	return NULL;
+ }
+ 
+-static void ov9281_get_module_inf(struct ov9281 *ov9281,
+-				  struct rkmodule_inf *inf)
++static int ov9281_get_selection(struct v4l2_subdev *sd,
++				struct v4l2_subdev_pad_config *cfg,
++				struct v4l2_subdev_selection *sel)
+ {
+-	memset(inf, 0, sizeof(*inf));
+-	strlcpy(inf->base.sensor, OV9281_NAME, sizeof(inf->base.sensor));
+-	strlcpy(inf->base.module, ov9281->module_name,
+-		sizeof(inf->base.module));
+-	strlcpy(inf->base.lens, ov9281->len_name, sizeof(inf->base.lens));
+-}
++	switch (sel->target) {
++	case V4L2_SEL_TGT_CROP: {
++		struct ov9281 *ov9281 = to_ov9281(sd);
+ 
+-static long ov9281_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+-{
+-	struct ov9281 *ov9281 = to_ov9281(sd);
+-	long ret = 0;
++		mutex_lock(&ov9281->mutex);
++		sel->r = *__ov9281_get_pad_crop(ov9281, cfg, sel->pad,
++						sel->which);
++		mutex_unlock(&ov9281->mutex);
+ 
+-	switch (cmd) {
+-	case RKMODULE_GET_MODULE_INFO:
+-		ov9281_get_module_inf(ov9281, (struct rkmodule_inf *)arg);
+-		break;
+-	default:
+-		ret = -ENOIOCTLCMD;
+-		break;
++		return 0;
+ 	}
+ 
+-	return ret;
+-}
++	case V4L2_SEL_TGT_NATIVE_SIZE:
++		sel->r.top = 0;
++		sel->r.left = 0;
++		sel->r.width = OV9281_NATIVE_WIDTH;
++		sel->r.height = OV9281_NATIVE_HEIGHT;
+ 
+-#ifdef CONFIG_COMPAT
+-static long ov9281_compat_ioctl32(struct v4l2_subdev *sd,
+-				  unsigned int cmd, unsigned long arg)
+-{
+-	void __user *up = compat_ptr(arg);
+-	struct rkmodule_inf *inf;
+-	struct rkmodule_awb_cfg *cfg;
+-	long ret;
+-
+-	switch (cmd) {
+-	case RKMODULE_GET_MODULE_INFO:
+-		inf = kzalloc(sizeof(*inf), GFP_KERNEL);
+-		if (!inf) {
+-			ret = -ENOMEM;
+-			return ret;
+-		}
++		return 0;
+ 
+-		ret = ov9281_ioctl(sd, cmd, inf);
+-		if (!ret)
+-			ret = copy_to_user(up, inf, sizeof(*inf));
+-		kfree(inf);
+-		break;
+-	case RKMODULE_AWB_CFG:
+-		cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
+-		if (!cfg) {
+-			ret = -ENOMEM;
+-			return ret;
+-		}
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
++		sel->r.top = OV9281_PIXEL_ARRAY_TOP;
++		sel->r.left = OV9281_PIXEL_ARRAY_LEFT;
++		sel->r.width = OV9281_PIXEL_ARRAY_WIDTH;
++		sel->r.height = OV9281_PIXEL_ARRAY_HEIGHT;
+ 
+-		ret = copy_from_user(cfg, up, sizeof(*cfg));
+-		if (!ret)
+-			ret = ov9281_ioctl(sd, cmd, cfg);
+-		kfree(cfg);
+-		break;
+-	default:
+-		ret = -ENOIOCTLCMD;
+-		break;
++		return 0;
+ 	}
+ 
+-	return ret;
++	return -EINVAL;
+ }
+-#endif
+ 
+ static int __ov9281_start_stream(struct ov9281 *ov9281)
+ {
+@@ -643,12 +615,6 @@ static int ov9281_s_power(struct v4l2_su
+ 			pm_runtime_put_noidle(&client->dev);
+ 			goto unlock_and_return;
+ 		}
+-		ret = ov9281_write_array(ov9281->client, ov9281_global_regs);
+-		if (ret) {
+-			v4l2_err(sd, "could not set init registers\n");
+-			pm_runtime_put_noidle(&client->dev);
+-			goto unlock_and_return;
+-		}
+ 		ov9281->power_on = true;
+ 	} else {
+ 		pm_runtime_put(&client->dev);
+@@ -673,18 +639,12 @@ static int __ov9281_power_on(struct ov92
+ 	u32 delay_us;
+ 	struct device *dev = &ov9281->client->dev;
+ 
+-	if (!IS_ERR_OR_NULL(ov9281->pins_default)) {
+-		ret = pinctrl_select_state(ov9281->pinctrl,
+-					   ov9281->pins_default);
+-		if (ret < 0)
+-			dev_err(dev, "could not set pins\n");
+-	}
+-
+ 	ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ);
+ 	if (ret < 0)
+ 		dev_warn(dev, "Failed to set xvclk rate (24MHz)\n");
+ 	if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ)
+-		dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
++		dev_warn(dev, "xvclk mismatched, modes are based on 24MHz - rate is %lu\n",
++			 clk_get_rate(ov9281->xvclk));
+ 
+ 	ret = clk_prepare_enable(ov9281->xvclk);
+ 	if (ret < 0) {
+@@ -722,20 +682,11 @@ disable_clk:
+ 
+ static void __ov9281_power_off(struct ov9281 *ov9281)
+ {
+-	int ret;
+-	struct device *dev = &ov9281->client->dev;
+-
+ 	if (!IS_ERR(ov9281->pwdn_gpio))
+ 		gpiod_set_value_cansleep(ov9281->pwdn_gpio, 0);
+ 	clk_disable_unprepare(ov9281->xvclk);
+ 	if (!IS_ERR(ov9281->reset_gpio))
+ 		gpiod_set_value_cansleep(ov9281->reset_gpio, 0);
+-	if (!IS_ERR_OR_NULL(ov9281->pins_sleep)) {
+-		ret = pinctrl_select_state(ov9281->pinctrl,
+-					   ov9281->pins_sleep);
+-		if (ret < 0)
+-			dev_dbg(dev, "could not set pins\n");
+-	}
+ 	regulator_bulk_disable(OV9281_NUM_SUPPLIES, ov9281->supplies);
+ }
+ 
+@@ -759,7 +710,6 @@ static int ov9281_runtime_suspend(struct
+ 	return 0;
+ }
+ 
+-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ static int ov9281_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+ {
+ 	struct ov9281 *ov9281 = to_ov9281(sd);
+@@ -773,61 +723,42 @@ static int ov9281_open(struct v4l2_subde
+ 	try_fmt->height = def_mode->height;
+ 	try_fmt->code = MEDIA_BUS_FMT_Y10_1X10;
+ 	try_fmt->field = V4L2_FIELD_NONE;
++	try_fmt->colorspace = V4L2_COLORSPACE_SRGB;
++	try_fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(try_fmt->colorspace);
++	try_fmt->quantization =
++		V4L2_MAP_QUANTIZATION_DEFAULT(true, try_fmt->colorspace,
++					      try_fmt->ycbcr_enc);
++	try_fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(try_fmt->colorspace);
+ 
+ 	mutex_unlock(&ov9281->mutex);
+ 	/* No crop or compose */
+ 
+ 	return 0;
+ }
+-#endif
+-
+-static int
+-ov9281_enum_frame_interval(struct v4l2_subdev *sd,
+-			   struct v4l2_subdev_pad_config *cfg,
+-			   struct v4l2_subdev_frame_interval_enum *fie)
+-{
+-	if (fie->index >= ARRAY_SIZE(supported_modes))
+-		return -EINVAL;
+-
+-	if (fie->code != MEDIA_BUS_FMT_Y10_1X10)
+-		return -EINVAL;
+-
+-	fie->width = supported_modes[fie->index].width;
+-	fie->height = supported_modes[fie->index].height;
+-	fie->interval = supported_modes[fie->index].max_fps;
+-	return 0;
+-}
+ 
+ static const struct dev_pm_ops ov9281_pm_ops = {
+ 	SET_RUNTIME_PM_OPS(ov9281_runtime_suspend,
+ 			   ov9281_runtime_resume, NULL)
+ };
+ 
+-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ static const struct v4l2_subdev_internal_ops ov9281_internal_ops = {
+ 	.open = ov9281_open,
+ };
+-#endif
+ 
+ static const struct v4l2_subdev_core_ops ov9281_core_ops = {
+ 	.s_power = ov9281_s_power,
+-	.ioctl = ov9281_ioctl,
+-#ifdef CONFIG_COMPAT
+-	.compat_ioctl32 = ov9281_compat_ioctl32,
+-#endif
+ };
+ 
+ static const struct v4l2_subdev_video_ops ov9281_video_ops = {
+ 	.s_stream = ov9281_s_stream,
+-	.g_frame_interval = OV9281_g_frame_interval,
+ };
+ 
+ static const struct v4l2_subdev_pad_ops ov9281_pad_ops = {
+ 	.enum_mbus_code = ov9281_enum_mbus_code,
+ 	.enum_frame_size = ov9281_enum_frame_sizes,
+-	.enum_frame_interval = ov9281_enum_frame_interval,
+ 	.get_fmt = ov9281_get_fmt,
+ 	.set_fmt = ov9281_set_fmt,
++	.get_selection = ov9281_get_selection,
+ };
+ 
+ static const struct v4l2_subdev_ops ov9281_subdev_ops = {
+@@ -868,7 +799,8 @@ static int ov9281_set_ctrl(struct v4l2_c
+ 	case V4L2_CID_ANALOGUE_GAIN:
+ 		ret = ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_H,
+ 				       OV9281_REG_VALUE_08BIT,
+-				       (ctrl->val >> OV9281_GAIN_H_SHIFT) & OV9281_GAIN_H_MASK);
++				       (ctrl->val >> OV9281_GAIN_H_SHIFT) &
++							OV9281_GAIN_H_MASK);
+ 		ret |= ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_L,
+ 				       OV9281_REG_VALUE_08BIT,
+ 				       ctrl->val & OV9281_GAIN_L_MASK);
+@@ -922,31 +854,34 @@ static int ov9281_initialize_controls(st
+ 
+ 	h_blank = mode->hts_def - mode->width;
+ 	ov9281->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
+-				h_blank, h_blank, 1, h_blank);
++					   h_blank, h_blank, 1, h_blank);
+ 	if (ov9281->hblank)
+ 		ov9281->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ 
+ 	vblank_def = mode->vts_def - mode->height;
+ 	ov9281->vblank = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+-				V4L2_CID_VBLANK, vblank_def,
+-				OV9281_VTS_MAX - mode->height,
+-				1, vblank_def);
++					   V4L2_CID_VBLANK, vblank_def,
++					   OV9281_VTS_MAX - mode->height, 1,
++					   vblank_def);
+ 
+ 	exposure_max = mode->vts_def - 4;
+ 	ov9281->exposure = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+-				V4L2_CID_EXPOSURE, OV9281_EXPOSURE_MIN,
+-				exposure_max, OV9281_EXPOSURE_STEP,
+-				mode->exp_def);
++					     V4L2_CID_EXPOSURE,
++					     OV9281_EXPOSURE_MIN, exposure_max,
++					     OV9281_EXPOSURE_STEP,
++					     mode->exp_def);
+ 
+ 	ov9281->anal_gain = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
+-				V4L2_CID_ANALOGUE_GAIN, OV9281_GAIN_MIN,
+-				OV9281_GAIN_MAX, OV9281_GAIN_STEP,
+-				OV9281_GAIN_DEFAULT);
+-
+-	ov9281->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
+-				&ov9281_ctrl_ops, V4L2_CID_TEST_PATTERN,
+-				ARRAY_SIZE(ov9281_test_pattern_menu) - 1,
+-				0, 0, ov9281_test_pattern_menu);
++					      V4L2_CID_ANALOGUE_GAIN,
++					      OV9281_GAIN_MIN, OV9281_GAIN_MAX,
++					      OV9281_GAIN_STEP,
++					      OV9281_GAIN_DEFAULT);
++
++	ov9281->test_pattern =
++		v4l2_ctrl_new_std_menu_items(handler, &ov9281_ctrl_ops,
++					     V4L2_CID_TEST_PATTERN,
++					     ARRAY_SIZE(ov9281_test_pattern_menu) - 1,
++					     0, 0, ov9281_test_pattern_menu);
+ 
+ 	if (handler->error) {
+ 		ret = handler->error;
+@@ -1000,34 +935,14 @@ static int ov9281_probe(struct i2c_clien
+ 			const struct i2c_device_id *id)
+ {
+ 	struct device *dev = &client->dev;
+-	struct device_node *node = dev->of_node;
+ 	struct ov9281 *ov9281;
+ 	struct v4l2_subdev *sd;
+-	char facing[2];
+ 	int ret;
+ 
+-	dev_info(dev, "driver version: %02x.%02x.%02x",
+-		DRIVER_VERSION >> 16,
+-		(DRIVER_VERSION & 0xff00) >> 8,
+-		DRIVER_VERSION & 0x00ff);
+-
+ 	ov9281 = devm_kzalloc(dev, sizeof(*ov9281), GFP_KERNEL);
+ 	if (!ov9281)
+ 		return -ENOMEM;
+ 
+-	ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
+-				   &ov9281->module_index);
+-	ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
+-				       &ov9281->module_facing);
+-	ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
+-				       &ov9281->module_name);
+-	ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
+-				       &ov9281->len_name);
+-	if (ret) {
+-		dev_err(dev, "could not get module information!\n");
+-		return -EINVAL;
+-	}
+-
+ 	ov9281->client = client;
+ 	ov9281->cur_mode = &supported_modes[0];
+ 
+@@ -1037,31 +952,15 @@ static int ov9281_probe(struct i2c_clien
+ 		return -EINVAL;
+ 	}
+ 
+-	ov9281->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
++	ov9281->reset_gpio = devm_gpiod_get_optional(dev, "reset",
++						     GPIOD_OUT_LOW);
+ 	if (IS_ERR(ov9281->reset_gpio))
+ 		dev_warn(dev, "Failed to get reset-gpios\n");
+ 
+-	ov9281->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW);
++	ov9281->pwdn_gpio = devm_gpiod_get_optional(dev, "pwdn", GPIOD_OUT_LOW);
+ 	if (IS_ERR(ov9281->pwdn_gpio))
+ 		dev_warn(dev, "Failed to get pwdn-gpios\n");
+ 
+-	ov9281->pinctrl = devm_pinctrl_get(dev);
+-	if (!IS_ERR(ov9281->pinctrl)) {
+-		ov9281->pins_default =
+-			pinctrl_lookup_state(ov9281->pinctrl,
+-					     OF_CAMERA_PINCTRL_STATE_DEFAULT);
+-		if (IS_ERR(ov9281->pins_default))
+-			dev_err(dev, "could not get default pinstate\n");
+-
+-		ov9281->pins_sleep =
+-			pinctrl_lookup_state(ov9281->pinctrl,
+-					     OF_CAMERA_PINCTRL_STATE_SLEEP);
+-		if (IS_ERR(ov9281->pins_sleep))
+-			dev_err(dev, "could not get sleep pinstate\n");
+-	} else {
+-		dev_err(dev, "no pinctrl\n");
+-	}
+-
+ 	ret = ov9281_configure_regulators(ov9281);
+ 	if (ret) {
+ 		dev_err(dev, "Failed to get power regulators\n");
+@@ -1084,26 +983,16 @@ static int ov9281_probe(struct i2c_clien
+ 	if (ret)
+ 		goto err_power_off;
+ 
+-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
+ 	sd->internal_ops = &ov9281_internal_ops;
+ 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+-#endif
+-#if defined(CONFIG_MEDIA_CONTROLLER)
++
+ 	ov9281->pad.flags = MEDIA_PAD_FL_SOURCE;
+-	sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR;
+-	ret = media_entity_init(&sd->entity, 1, &ov9281->pad, 0);
++	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
++	ret = media_entity_pads_init(&sd->entity, 1, &ov9281->pad);
+ 	if (ret < 0)
+ 		goto err_power_off;
+-#endif
+-
+-	memset(facing, 0, sizeof(facing));
+-	if (strcmp(ov9281->module_facing, "back") == 0)
+-		facing[0] = 'b';
+-	else
+-		facing[0] = 'f';
+ 
+-	snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
+-		 ov9281->module_index, facing,
++	snprintf(sd->name, sizeof(sd->name), "m%s %s",
+ 		 OV9281_NAME, dev_name(sd->dev));
+ 	ret = v4l2_async_register_subdev_sensor_common(sd);
+ 	if (ret) {
+@@ -1118,9 +1007,7 @@ static int ov9281_probe(struct i2c_clien
+ 	return 0;
+ 
+ err_clean_entity:
+-#if defined(CONFIG_MEDIA_CONTROLLER)
+ 	media_entity_cleanup(&sd->entity);
+-#endif
+ err_power_off:
+ 	__ov9281_power_off(ov9281);
+ err_free_handler:
+@@ -1137,9 +1024,7 @@ static int ov9281_remove(struct i2c_clie
+ 	struct ov9281 *ov9281 = to_ov9281(sd);
+ 
+ 	v4l2_async_unregister_subdev(sd);
+-#if defined(CONFIG_MEDIA_CONTROLLER)
+ 	media_entity_cleanup(&sd->entity);
+-#endif
+ 	v4l2_ctrl_handler_free(&ov9281->ctrl_handler);
+ 	mutex_destroy(&ov9281->mutex);
+ 
+@@ -1151,13 +1036,11 @@ static int ov9281_remove(struct i2c_clie
+ 	return 0;
+ }
+ 
+-#if IS_ENABLED(CONFIG_OF)
+ static const struct of_device_id ov9281_of_match[] = {
+ 	{ .compatible = "ovti,ov9281" },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, ov9281_of_match);
+-#endif
+ 
+ static const struct i2c_device_id ov9281_match_id[] = {
+ 	{ "ovti,ov9281", 0 },
diff --git a/target/linux/bcm27xx/patches-5.10/950-0288-media-i2c-ov9281-Read-chip-ID-via-2-reads.patch b/target/linux/bcm27xx/patches-5.10/950-0288-media-i2c-ov9281-Read-chip-ID-via-2-reads.patch
new file mode 100644
index 0000000000..185fb77f5c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0288-media-i2c-ov9281-Read-chip-ID-via-2-reads.patch
@@ -0,0 +1,42 @@
+From e5bf123ed1069795286e5caa8f2a67bb5977691c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 6 Jul 2020 17:51:32 +0100
+Subject: [PATCH] media: i2c: ov9281: Read chip ID via 2 reads
+
+Vision Components have made an OV9281 module which blocks reading
+back the majority of registers to comply with NDAs, and in doing
+so doesn't allow auto-increment register reading as used when
+reading the chip ID.
+
+Use two reads and manually combine the results.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -904,13 +904,17 @@ static int ov9281_check_sensor_id(struct
+ 				  struct i2c_client *client)
+ {
+ 	struct device *dev = &ov9281->client->dev;
+-	u32 id = 0;
++	u32 id = 0, id_msb;
+ 	int ret;
+ 
+-	ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID,
+-			      OV9281_REG_VALUE_16BIT, &id);
+-	if (id != CHIP_ID) {
+-		dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
++	ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID + 1,
++			      OV9281_REG_VALUE_08BIT, &id);
++	if (!ret)
++		ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID,
++				      OV9281_REG_VALUE_08BIT, &id_msb);
++	id |= (id_msb << 8);
++	if (ret || id != CHIP_ID) {
++		dev_err(dev, "Unexpected sensor id(%04x), ret(%d)\n", id, ret);
+ 		return -ENODEV;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0289-media-i2c-imx290-Explicitly-set-v-h-blank-on-mode-ch.patch b/target/linux/bcm27xx/patches-5.10/950-0289-media-i2c-imx290-Explicitly-set-v-h-blank-on-mode-ch.patch
new file mode 100644
index 0000000000..bdcf9005b5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0289-media-i2c-imx290-Explicitly-set-v-h-blank-on-mode-ch.patch
@@ -0,0 +1,46 @@
+From f7ff6542ad9cdee4a1e67a0243f7dcc93cceb08a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 10:31:53 +0100
+Subject: [PATCH] media: i2c: imx290: Explicitly set v&h blank on mode
+ change
+
+__v4l2_ctrl_modify_range only updates the current value should
+it be invalid within the new range. That can leave modes producing
+odd frame rates.
+
+Explicitly update the HBLANK and VBLANK values so that on mode
+change we revert to the default frame rate for the mode.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -796,17 +796,23 @@ static int imx290_set_fmt(struct v4l2_su
+ 			__v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate,
+ 						 imx290_calc_pixel_rate(imx290));
+ 
+-		if (imx290->hblank)
++		if (imx290->hblank) {
+ 			__v4l2_ctrl_modify_range(imx290->hblank,
+ 						 imx290->hmax_min - mode->width,
+ 						 IMX290_HMAX_MAX - mode->width,
+ 						 1, mode->hmax - mode->width);
+-		if (imx290->vblank)
++			__v4l2_ctrl_s_ctrl(imx290->hblank,
++					   mode->hmax - mode->width);
++		}
++		if (imx290->vblank) {
+ 			__v4l2_ctrl_modify_range(imx290->vblank,
+ 						 mode->vmax - mode->height,
+ 						 IMX290_VMAX_MAX - mode->height,
+ 						 1,
+ 						 mode->vmax - mode->height);
++			__v4l2_ctrl_s_ctrl(imx290->vblank,
++					   mode->vmax - mode->height);
++		}
+ 		if (imx290->exposure)
+ 			__v4l2_ctrl_modify_range(imx290->exposure,
+ 						 mode->vmax - mode->height,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0290-media-i2c-imx290-Add-support-for-g_selection-to-repo.patch b/target/linux/bcm27xx/patches-5.10/950-0290-media-i2c-imx290-Add-support-for-g_selection-to-repo.patch
new file mode 100644
index 0000000000..17798e50b7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0290-media-i2c-imx290-Add-support-for-g_selection-to-repo.patch
@@ -0,0 +1,156 @@
+From ee95eb32c4202a2d290af6c754806ef3bdfb3fda Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 11:23:48 +0100
+Subject: [PATCH] media: i2c: imx290: Add support for g_selection to
+ report cropping
+
+Userspace needs to know the cropping arrangements for each mode,
+so expose this through g_selection.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 84 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 84 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -61,6 +61,13 @@ enum imx290_clk_index {
+ #define IMX290_PGCTRL_THRU BIT(1)
+ #define IMX290_PGCTRL_MODE(n) ((n) << 4)
+ 
++#define IMX290_NATIVE_WIDTH		1945U
++#define IMX290_NATIVE_HEIGHT		1109U
++#define IMX290_PIXEL_ARRAY_LEFT		4U
++#define IMX290_PIXEL_ARRAY_TOP		12U
++#define IMX290_PIXEL_ARRAY_WIDTH	1937U
++#define IMX290_PIXEL_ARRAY_HEIGHT	1097U
++
+ static const char * const imx290_supply_name[] = {
+ 	"vdda",
+ 	"vddd",
+@@ -80,6 +87,7 @@ struct imx290_mode {
+ 	u32 hmax;
+ 	u32 vmax;
+ 	u8 link_freq_index;
++	struct v4l2_rect crop;
+ 
+ 	const struct imx290_regval *data;
+ 	u32 data_size;
+@@ -384,6 +392,12 @@ static const struct imx290_mode imx290_m
+ 		.hmax = 0x1130,
+ 		.vmax = 0x0465,
+ 		.link_freq_index = FREQ_INDEX_1080P,
++		.crop = {
++			.left = 4 + 8,
++			.top = 12 + 8,
++			.width = 1920,
++			.height = 1080,
++		},
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
+ 		.clk_data = {
+@@ -398,6 +412,12 @@ static const struct imx290_mode imx290_m
+ 		.hmax = 0x19c8,
+ 		.vmax = 0x02ee,
+ 		.link_freq_index = FREQ_INDEX_720P,
++		.crop = {
++			.left = 4 + 8 + 320,
++			.top = 12 + 8 + 180,
++			.width = 1280,
++			.height = 720,
++		},
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
+ 		.clk_data = {
+@@ -415,6 +435,12 @@ static const struct imx290_mode imx290_m
+ 		.hmax = 0x0898,
+ 		.vmax = 0x0465,
+ 		.link_freq_index = FREQ_INDEX_1080P,
++		.crop = {
++			.left = 4 + 8,
++			.top = 12 + 8,
++			.width = 1920,
++			.height = 1080,
++		},
+ 		.data = imx290_1080p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_1080p_settings),
+ 		.clk_data = {
+@@ -429,6 +455,12 @@ static const struct imx290_mode imx290_m
+ 		.hmax = 0x0ce4,
+ 		.vmax = 0x02ee,
+ 		.link_freq_index = FREQ_INDEX_720P,
++		.crop = {
++			.left = 4 + 8 + 320,
++			.top = 12 + 8 + 180,
++			.width = 1280,
++			.height = 720,
++		},
+ 		.data = imx290_720p_settings,
+ 		.data_size = ARRAY_SIZE(imx290_720p_settings),
+ 		.clk_data = {
+@@ -875,6 +907,57 @@ static int imx290_write_current_format(s
+ 	return 0;
+ }
+ 
++static const struct v4l2_rect *
++__imx290_get_pad_crop(struct imx290 *imx290, struct v4l2_subdev_pad_config *cfg,
++		      unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++	switch (which) {
++	case V4L2_SUBDEV_FORMAT_TRY:
++		return v4l2_subdev_get_try_crop(&imx290->sd, cfg, pad);
++	case V4L2_SUBDEV_FORMAT_ACTIVE:
++		return &imx290->current_mode->crop;
++	}
++
++	return NULL;
++}
++
++static int imx290_get_selection(struct v4l2_subdev *sd,
++				struct v4l2_subdev_pad_config *cfg,
++				struct v4l2_subdev_selection *sel)
++{
++	switch (sel->target) {
++	case V4L2_SEL_TGT_CROP: {
++		struct imx290 *imx290 = to_imx290(sd);
++
++		mutex_lock(&imx290->lock);
++		sel->r = *__imx290_get_pad_crop(imx290, cfg, sel->pad,
++						sel->which);
++		mutex_unlock(&imx290->lock);
++
++		return 0;
++	}
++
++	case V4L2_SEL_TGT_NATIVE_SIZE:
++		sel->r.top = 0;
++		sel->r.left = 0;
++		sel->r.width = IMX290_NATIVE_WIDTH;
++		sel->r.height = IMX290_NATIVE_HEIGHT;
++
++		return 0;
++
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
++		sel->r.top = IMX290_PIXEL_ARRAY_TOP;
++		sel->r.left = IMX290_PIXEL_ARRAY_LEFT;
++		sel->r.width = IMX290_PIXEL_ARRAY_WIDTH;
++		sel->r.height = IMX290_PIXEL_ARRAY_HEIGHT;
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
+ /* Start streaming */
+ static int imx290_start_streaming(struct imx290 *imx290)
+ {
+@@ -1073,6 +1156,7 @@ static const struct v4l2_subdev_pad_ops
+ 	.enum_frame_size = imx290_enum_frame_size,
+ 	.get_fmt = imx290_get_fmt,
+ 	.set_fmt = imx290_set_fmt,
++	.get_selection = imx290_get_selection,
+ };
+ 
+ static const struct v4l2_subdev_ops imx290_subdev_ops = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0291-media-i2c-imx290-Set-the-colorspace-fields-in-the-fo.patch b/target/linux/bcm27xx/patches-5.10/950-0291-media-i2c-imx290-Set-the-colorspace-fields-in-the-fo.patch
new file mode 100644
index 0000000000..6cca04ae4d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0291-media-i2c-imx290-Set-the-colorspace-fields-in-the-fo.patch
@@ -0,0 +1,31 @@
+From b6eaf8158d0e2053680dc72e45d2a4e7d0617312 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 11:51:26 +0100
+Subject: [PATCH] media: i2c: imx290: Set the colorspace fields in the
+ format
+
+The colorspace fields were left untouched in imx290_set_fmt
+which lead to a v4l2-compliance failure.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -813,6 +813,14 @@ static int imx290_set_fmt(struct v4l2_su
+ 
+ 	fmt->format.code = imx290->formats[i].code;
+ 	fmt->format.field = V4L2_FIELD_NONE;
++	fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
++	fmt->format.ycbcr_enc =
++			V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->format.colorspace);
++	fmt->format.quantization =
++		V4L2_MAP_QUANTIZATION_DEFAULT(true, fmt->format.colorspace,
++					      fmt->format.ycbcr_enc);
++	fmt->format.xfer_func =
++		V4L2_MAP_XFER_FUNC_DEFAULT(fmt->format.colorspace);
+ 
+ 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ 		format = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0292-media-bcm2835-unicam-Reinstate-V4L2_CAP_READWRITE-in.patch b/target/linux/bcm27xx/patches-5.10/950-0292-media-bcm2835-unicam-Reinstate-V4L2_CAP_READWRITE-in.patch
new file mode 100644
index 0000000000..abc33dcd32
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0292-media-bcm2835-unicam-Reinstate-V4L2_CAP_READWRITE-in.patch
@@ -0,0 +1,28 @@
+From 615ab5f76328d089d64d46ea0676efe407e6b9c5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 14:23:40 +0100
+Subject: [PATCH] media: bcm2835-unicam: Reinstate V4L2_CAP_READWRITE
+ in the caps
+
+v4l2-compliance throws a failure if the device doesn't advertise
+V4L2_CAP_READWRITE but allows read or write operations.
+We do support read, so reinstate the flag.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2418,8 +2418,8 @@ static int register_node(struct unicam_d
+ 	vdev->queue = q;
+ 	vdev->lock = &node->lock;
+ 	vdev->device_caps = (pad_id == IMAGE_PAD) ?
+-			    (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING) :
+-			    (V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING);
++				V4L2_CAP_VIDEO_CAPTURE : V4L2_CAP_META_CAPTURE;
++	vdev->device_caps |= V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
+ 
+ 	/* Define the device names */
+ 	snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0293-media-bcm2835-unicam-Ensure-type-is-VIDEO_CAPTURE-in.patch b/target/linux/bcm27xx/patches-5.10/950-0293-media-bcm2835-unicam-Ensure-type-is-VIDEO_CAPTURE-in.patch
new file mode 100644
index 0000000000..0645035f52
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0293-media-bcm2835-unicam-Ensure-type-is-VIDEO_CAPTURE-in.patch
@@ -0,0 +1,36 @@
+From c1dc0c0bcda6de7374a46d99a73f855603d366a5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 14:52:43 +0100
+Subject: [PATCH] media: bcm2835-unicam: Ensure type is VIDEO_CAPTURE
+ in [g|s]_selection
+
+[g|s]_selection pass in a buffer type that needs to be validated
+before passing on to the sensor subdev.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1885,6 +1885,9 @@ static int unicam_s_selection(struct fil
+ 		.r = sel->r,
+ 	};
+ 
++	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
++		return -EINVAL;
++
+ 	return v4l2_subdev_call(dev->sensor, pad, set_selection, NULL, &sdsel);
+ }
+ 
+@@ -1899,6 +1902,9 @@ static int unicam_g_selection(struct fil
+ 	};
+ 	int ret;
+ 
++	if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
++		return -EINVAL;
++
+ 	ret = v4l2_subdev_call(dev->sensor, pad, get_selection, NULL, &sdsel);
+ 	if (!ret)
+ 		sel->r = sdsel.r;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0294-media-bcm2835-unicam-Set-VPU-min-clock-freq-to-250Mh.patch b/target/linux/bcm27xx/patches-5.10/950-0294-media-bcm2835-unicam-Set-VPU-min-clock-freq-to-250Mh.patch
new file mode 100644
index 0000000000..7fd337edb8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0294-media-bcm2835-unicam-Set-VPU-min-clock-freq-to-250Mh.patch
@@ -0,0 +1,127 @@
+From d839c8936020f393c5536d83b783198217243e8d Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Mon, 11 May 2020 13:02:22 +0100
+Subject: [PATCH] media: bcm2835: unicam: Set VPU min clock freq to
+ 250Mhz.
+
+When streaming with Unicam, the VPU must have a clock frequency of at
+least 250Mhz.  Otherwise, the input fifos could overrun, causing
+image corruption.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 49 +++++++++++++++++--
+ 1 file changed, 44 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -89,6 +89,11 @@ MODULE_PARM_DESC(debug, "Debug level 0-3
+ 		v4l2_err(&(dev)->v4l2_dev, fmt, ##arg)
+ 
+ /*
++ * Unicam must request a minimum of 250Mhz from the VPU clock.
++ * Otherwise the input FIFOs overrun and cause image corruption.
++ */
++#define MIN_VPU_CLOCK_RATE (250 * 1000 * 1000)
++/*
+  * To protect against a dodgy sensor driver never returning an error from
+  * enum_mbus_code, set a maximum index value to be used.
+  */
+@@ -417,8 +422,10 @@ struct unicam_device {
+ 	void __iomem *base;
+ 	/* clock gating base address */
+ 	void __iomem *clk_gate_base;
+-	/* clock handle */
++	/* lp clock handle */
+ 	struct clk *clock;
++	/* vpu clock handle */
++	struct clk *vpu_clock;
+ 	/* V4l2 device */
+ 	struct v4l2_device v4l2_dev;
+ 	struct media_device mdev;
+@@ -1678,16 +1685,28 @@ static int unicam_start_streaming(struct
+ 	unicam_dbg(1, dev, "Running with %u data lanes\n",
+ 		   dev->active_data_lanes);
+ 
+-	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
++	ret = clk_set_min_rate(dev->vpu_clock, MIN_VPU_CLOCK_RATE);
++	if (ret) {
++		unicam_err(dev, "failed to set up VPU clock\n");
++		goto err_pm_put;
++	}
++
++	ret = clk_prepare_enable(dev->vpu_clock);
+ 	if (ret) {
+-		unicam_err(dev, "failed to set up clock\n");
++		unicam_err(dev, "Failed to enable VPU clock: %d\n", ret);
+ 		goto err_pm_put;
+ 	}
+ 
++	ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
++	if (ret) {
++		unicam_err(dev, "failed to set up CSI clock\n");
++		goto err_vpu_clock;
++	}
++
+ 	ret = clk_prepare_enable(dev->clock);
+ 	if (ret) {
+ 		unicam_err(dev, "Failed to enable CSI clock: %d\n", ret);
+-		goto err_pm_put;
++		goto err_vpu_clock;
+ 	}
+ 
+ 	for (i = 0; i < ARRAY_SIZE(dev->node); i++) {
+@@ -1721,6 +1740,11 @@ static int unicam_start_streaming(struct
+ err_disable_unicam:
+ 	unicam_disable(dev);
+ 	clk_disable_unprepare(dev->clock);
++err_vpu_clock:
++	ret = clk_set_min_rate(dev->vpu_clock, 0);
++	if (ret)
++		unicam_err(dev, "failed to reset the VPU clock\n");
++	clk_disable_unprepare(dev->vpu_clock);
+ err_pm_put:
+ 	unicam_runtime_put(dev);
+ err_streaming:
+@@ -1738,6 +1762,8 @@ static void unicam_stop_streaming(struct
+ 	node->streaming = false;
+ 
+ 	if (node->pad_id == IMAGE_PAD) {
++		int ret;
++
+ 		/*
+ 		 * Stop streaming the sensor and disable the peripheral.
+ 		 * We cannot continue streaming embedded data with the
+@@ -1747,6 +1773,12 @@ static void unicam_stop_streaming(struct
+ 			unicam_err(dev, "stream off failed in subdev\n");
+ 
+ 		unicam_disable(dev);
++
++		ret = clk_set_min_rate(dev->vpu_clock, 0);
++		if (ret)
++			unicam_err(dev, "failed to reset the min VPU clock\n");
++
++		clk_disable_unprepare(dev->vpu_clock);
+ 		clk_disable_unprepare(dev->clock);
+ 		unicam_runtime_put(dev);
+ 
+@@ -2750,11 +2782,18 @@ static int unicam_probe(struct platform_
+ 
+ 	unicam->clock = devm_clk_get(&pdev->dev, "lp");
+ 	if (IS_ERR(unicam->clock)) {
+-		unicam_err(unicam, "Failed to get clock\n");
++		unicam_err(unicam, "Failed to get lp clock\n");
+ 		ret = PTR_ERR(unicam->clock);
+ 		goto err_unicam_put;
+ 	}
+ 
++	unicam->vpu_clock = devm_clk_get(&pdev->dev, "vpu");
++	if (IS_ERR(unicam->vpu_clock)) {
++		unicam_err(unicam, "Failed to get vpu clock\n");
++		ret = PTR_ERR(unicam->vpu_clock);
++		goto err_unicam_put;
++	}
++
+ 	ret = platform_get_irq(pdev, 0);
+ 	if (ret <= 0) {
+ 		dev_err(&pdev->dev, "No IRQ resource\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0295-dt-bindings-bcm2835-unicam-Update-documentation-with.patch b/target/linux/bcm27xx/patches-5.10/950-0295-dt-bindings-bcm2835-unicam-Update-documentation-with.patch
new file mode 100644
index 0000000000..a2e8401a05
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0295-dt-bindings-bcm2835-unicam-Update-documentation-with.patch
@@ -0,0 +1,38 @@
+From 45ae6757ee8379bc04e718591b23e45fae4c968c Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Mon, 11 May 2020 13:06:27 +0100
+Subject: [PATCH] dt-bindings: bcm2835-unicam: Update documentation
+ with new clock params
+
+Update the documentation to reflect the new "VPU" clock needed
+by the bcm2835-unicam driver.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../devicetree/bindings/media/bcm2835-unicam.txt          | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/Documentation/devicetree/bindings/media/bcm2835-unicam.txt
++++ b/Documentation/devicetree/bindings/media/bcm2835-unicam.txt
+@@ -20,7 +20,7 @@ Required properties:
+ - interrupts	: should contain the IRQ line for this Unicam instance.
+ - clocks	: list of clock specifiers, corresponding to entries in
+ 		  clock-names property.
+-- clock-names	: must contain an "lp" entry, matching entries in the
++- clock-names	: must contain "lp" and "vpu" entries, matching entries in the
+ 		  clocks property.
+ 
+ Unicam supports a single port node. It should contain one 'port' child node
+@@ -46,9 +46,9 @@ Example:
+ 		reg = <0x7e801000 0x800>,
+ 		      <0x7e802004 0x4>;
+ 		interrupts = <2 7>;
+-		clocks = <&clocks BCM2835_CLOCK_CAM1>;
+-		clock-names = "lp";
+-
++		clocks = <&clocks BCM2835_CLOCK_CAM1>,
++			 <&firmware_clocks 4>;
++		clock-names = "lp", "vpu";
+ 		port {
+ 			csi1_ep: endpoint {
+ 				remote-endpoint = <&tc358743_0>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0296-media-i2c-ov5647-Parse-and-register-properties.patch b/target/linux/bcm27xx/patches-5.10/950-0296-media-i2c-ov5647-Parse-and-register-properties.patch
new file mode 100644
index 0000000000..10f5512b6a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0296-media-i2c-ov5647-Parse-and-register-properties.patch
@@ -0,0 +1,49 @@
+From 0f0998ed9620f676ee78eb6f606b0b2fa118bf68 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Date: Sat, 4 Jul 2020 01:45:08 +0300
+Subject: [PATCH] media: i2c: ov5647: Parse and register properties
+
+Parse device properties and register controls for them using the V4L2
+fwnode properties helpers.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+---
+ drivers/media/i2c/ov5647.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -1501,6 +1501,7 @@ static int ov5647_probe(struct i2c_clien
+ 	struct device_node *np = client->dev.of_node;
+ 	u32 xclk_freq;
+ 	int hblank, exposure_max, exposure_def;
++	struct v4l2_fwnode_device_properties props;
+ 
+ 	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+ 	if (!sensor)
+@@ -1534,7 +1535,7 @@ static int ov5647_probe(struct i2c_clien
+ 	mutex_init(&sensor->lock);
+ 
+ 	/* Initialise controls. */
+-	v4l2_ctrl_handler_init(&sensor->ctrls, 7);
++	v4l2_ctrl_handler_init(&sensor->ctrls, 9);
+ 	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+ 			  V4L2_CID_AUTOGAIN,
+ 			  0,  /* min */
+@@ -1598,6 +1599,16 @@ static int ov5647_probe(struct i2c_clien
+ 			__func__, ret);
+ 		goto error;
+ 	}
++
++	ret = v4l2_fwnode_device_parse(&client->dev, &props);
++	if (ret)
++		goto error;
++
++	ret = v4l2_ctrl_new_fwnode_properties(&sensor->ctrls, &ov5647_ctrl_ops,
++					      &props);
++	if (ret)
++		goto error;
++
+ 	sensor->sd.ctrl_handler = &sensor->ctrls;
+ 
+ 	/* Write out the register set over I2C on stream-on. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch b/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch
new file mode 100644
index 0000000000..2b1257526f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch
@@ -0,0 +1,235 @@
+From 136ae921cea7e7a189ee99d126253631f880ded0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 13 Jul 2020 10:33:19 +0100
+Subject: [PATCH] leds: Add the actpwr trigger
+
+The actpwr trigger is a meta trigger that cycles between an inverted
+mmc0 and default-on. It is written in a way that could fairly easily
+be generalised to support alternative sets of source triggers.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/leds/trigger/Kconfig          |  11 ++
+ drivers/leds/trigger/Makefile         |   1 +
+ drivers/leds/trigger/ledtrig-actpwr.c | 190 ++++++++++++++++++++++++++
+ 3 files changed, 202 insertions(+)
+ create mode 100644 drivers/leds/trigger/ledtrig-actpwr.c
+
+--- a/drivers/leds/trigger/Kconfig
++++ b/drivers/leds/trigger/Kconfig
+@@ -151,4 +151,15 @@ config LEDS_TRIGGER_AUDIO
+ 	  the audio mute and mic-mute changes.
+ 	  If unsure, say N
+ 
++config LEDS_TRIGGER_ACTPWR
++	tristate "ACT/PWR Input Trigger"
++	depends on LEDS_TRIGGERS
++	help
++	  This trigger is intended for platforms that have one software-
++	  controllable LED and no dedicated activity or power LEDs, hence the
++	  need to make the one LED perform both functions. It cycles between
++	  default-on and an inverted mmc0 every 500ms, guaranteeing that it is
++	  on for at least half of the time.
++	  If unsure, say N.
++
+ endif # LEDS_TRIGGERS
+--- a/drivers/leds/trigger/Makefile
++++ b/drivers/leds/trigger/Makefile
+@@ -16,3 +16,4 @@ obj-$(CONFIG_LEDS_TRIGGER_PANIC)	+= ledt
+ obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
+ obj-$(CONFIG_LEDS_TRIGGER_PATTERN)	+= ledtrig-pattern.o
+ obj-$(CONFIG_LEDS_TRIGGER_AUDIO)	+= ledtrig-audio.o
++obj-$(CONFIG_LEDS_TRIGGER_ACTPWR)	+= ledtrig-actpwr.o
+--- /dev/null
++++ b/drivers/leds/trigger/ledtrig-actpwr.c
+@@ -0,0 +1,190 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Activity/power trigger
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Based on Atsushi Nemoto's ledtrig-heartbeat.c, although there may be
++ * nothing left of the original now.
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/timer.h>
++#include <linux/leds.h>
++#include "../leds.h"
++
++enum {
++	TRIG_ACT,
++	TRIG_PWR,
++
++	TRIG_COUNT
++};
++
++struct actpwr_trig_src {
++	const char *name;
++	int interval;
++	bool invert;
++};
++
++struct actpwr_vled {
++	struct led_classdev cdev;
++	struct actpwr_trig_data *parent;
++	enum led_brightness value;
++	unsigned int interval;
++	bool invert;
++};
++
++struct actpwr_trig_data {
++	struct led_trigger trig;
++	struct actpwr_vled virt_leds[TRIG_COUNT];
++	struct actpwr_vled *active;
++	struct timer_list timer;
++	int next_active;
++};
++
++static int actpwr_trig_activate(struct led_classdev *led_cdev);
++static void actpwr_trig_deactivate(struct led_classdev *led_cdev);
++
++static const struct actpwr_trig_src actpwr_trig_sources[TRIG_COUNT] = {
++	[TRIG_ACT] = { "mmc0", 500, true },
++	[TRIG_PWR] = { "default-on", 500, false },
++};
++
++static struct actpwr_trig_data actpwr_data = {
++	{
++		.name     = "actpwr",
++		.activate = actpwr_trig_activate,
++		.deactivate = actpwr_trig_deactivate,
++	}
++};
++
++static void actpwr_brightness_set(struct led_classdev *led_cdev,
++				  enum led_brightness value)
++{
++	struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled,
++					       cdev);
++	struct actpwr_trig_data *trig = vled->parent;
++
++	if (vled->invert)
++		value = !value;
++	vled->value = value;
++
++	if (vled == trig->active)
++		led_trigger_event(&trig->trig, value);
++}
++
++static int actpwr_brightness_set_blocking(struct led_classdev *led_cdev,
++					  enum led_brightness value)
++{
++	actpwr_brightness_set(led_cdev, value);
++	return 0;
++}
++
++static enum led_brightness actpwr_brightness_get(struct led_classdev *led_cdev)
++{
++	struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled,
++					      cdev);
++
++	return vled->value;
++}
++
++static void actpwr_trig_cycle(struct timer_list *t)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++	struct actpwr_vled *active;
++
++	active = &trig->virt_leds[trig->next_active];
++	trig->active = active;
++	trig->next_active = (trig->next_active + 1) % TRIG_COUNT;
++
++	led_trigger_event(&trig->trig, active->value);
++
++	mod_timer(&trig->timer, jiffies + msecs_to_jiffies(active->interval));
++}
++
++static int actpwr_trig_activate(struct led_classdev *led_cdev)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++
++	/* Start the timer if this is the first LED */
++	if (!trig->active)
++		actpwr_trig_cycle(&trig->timer);
++	else
++		led_set_brightness_nosleep(led_cdev, trig->active->value);
++
++	return 0;
++}
++
++static void actpwr_trig_deactivate(struct led_classdev *led_cdev)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++
++	if (list_empty(&trig->trig.led_cdevs)) {
++		del_timer_sync(&trig->timer);
++		trig->active = NULL;
++	}
++}
++
++static int __init actpwr_trig_init(void)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++	int ret = 0;
++	int i;
++
++	timer_setup(&trig->timer, actpwr_trig_cycle, 0);
++
++	/* Register one "LED" for each source trigger */
++	for (i = 0; i < TRIG_COUNT; i++)
++	{
++		struct actpwr_vled *vled = &trig->virt_leds[i];
++		struct led_classdev *cdev = &vled->cdev;
++		const struct actpwr_trig_src *src = &actpwr_trig_sources[i];
++
++		vled->parent = trig;
++		vled->interval = src->interval;
++		vled->invert = src->invert;
++		cdev->name = src->name;
++		cdev->brightness_set = actpwr_brightness_set;
++		cdev->brightness_set_blocking = actpwr_brightness_set_blocking;
++		cdev->brightness_get = actpwr_brightness_get;
++		cdev->default_trigger = src->name;
++		ret = led_classdev_register(NULL, cdev);
++		if (ret)
++			goto error_classdev;
++	}
++
++	ret = led_trigger_register(&trig->trig);
++	if (ret)
++		goto error_classdev;
++
++	return 0;
++
++error_classdev:
++	while (i > 0)
++	{
++		i--;
++		led_classdev_unregister(&trig->virt_leds[i].cdev);
++	}
++
++	return ret;
++}
++
++static void __exit actpwr_trig_exit(void)
++{
++	int i;
++
++	led_trigger_unregister(&actpwr_data.trig);
++	for (i = 0; i < TRIG_COUNT; i++)
++	{
++		led_classdev_unregister(&actpwr_data.virt_leds[i].cdev);
++	}
++}
++
++module_init(actpwr_trig_init);
++module_exit(actpwr_trig_exit);
++
++MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>");
++MODULE_DESCRIPTION("ACT/PWR LED trigger");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0298-staging-vchiq_arm-children-inherit-DMA-config.patch b/target/linux/bcm27xx/patches-5.10/950-0298-staging-vchiq_arm-children-inherit-DMA-config.patch
new file mode 100644
index 0000000000..b9e548c7ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0298-staging-vchiq_arm-children-inherit-DMA-config.patch
@@ -0,0 +1,36 @@
+From e2e8b2dfdfda27958a276c719fda8b162f229bc8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 21 Jul 2020 17:34:09 +0100
+Subject: [PATCH] staging: vchiq_arm: children inherit DMA config
+
+Although it is no longer necessary for vchiq's children to have a
+different DMA configuration to the parent, they do still need to
+explicitly to have their DMA configuration set - to be that of the
+parent.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../vc04_services/interface/vchiq_arm/vchiq_arm.c      | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+@@ -2720,8 +2720,18 @@ vchiq_register_child(struct platform_dev
+ 
+ 	child->dev.of_node = np;
+ 
++	/*
++	 * We want the dma-ranges etc to be copied from the parent VCHIQ device
++	 * to be passed on to the children without a node of their own.
++	 */
++	if (!np)
++		np = pdev->dev.of_node;
++
+ 	of_dma_configure(&child->dev, np, true);
+ 
++	if (np != pdev->dev.of_node)
++		of_node_put(np);
++
+ 	return child;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0299-bcm2835-dma-Advertise-the-full-DMA-range.patch b/target/linux/bcm27xx/patches-5.10/950-0299-bcm2835-dma-Advertise-the-full-DMA-range.patch
new file mode 100644
index 0000000000..be31b6984a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0299-bcm2835-dma-Advertise-the-full-DMA-range.patch
@@ -0,0 +1,77 @@
+From 0aa2706c9c452213c352400a41e4878c09995153 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 22 Jul 2020 17:59:31 +0100
+Subject: [PATCH] bcm2835-dma: Advertise the full DMA range
+
+Unless the DMA mask is set wider than 32 bits, DMA mapping will use a
+bounce buffer.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/dma/bcm2835-dma.c | 18 +++++++++++++++---
+ 1 file changed, 15 insertions(+), 3 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -41,6 +41,7 @@
+ #define BCM2711_DMA_MEMCPY_CHAN 14
+ 
+ struct bcm2835_dma_cfg_data {
++	u64	dma_mask;
+ 	u32	chan_40bit_mask;
+ };
+ 
+@@ -300,10 +301,12 @@ DEFINE_SPINLOCK(memcpy_lock);
+ 
+ static const struct bcm2835_dma_cfg_data bcm2835_dma_cfg = {
+ 	.chan_40bit_mask = 0,
++	.dma_mask = DMA_BIT_MASK(32),
+ };
+ 
+ static const struct bcm2835_dma_cfg_data bcm2711_dma_cfg = {
+ 	.chan_40bit_mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
++	.dma_mask = DMA_BIT_MASK(36),
+ };
+ 
+ static inline size_t bcm2835_dma_max_frame_length(struct bcm2835_chan *c)
+@@ -1180,6 +1183,8 @@ static struct dma_chan *bcm2835_dma_xlat
+ 
+ static int bcm2835_dma_probe(struct platform_device *pdev)
+ {
++	const struct bcm2835_dma_cfg_data *cfg_data;
++	const struct of_device_id *of_id;
+ 	struct bcm2835_dmadev *od;
+ 	struct resource *res;
+ 	void __iomem *base;
+@@ -1189,13 +1194,20 @@ static int bcm2835_dma_probe(struct plat
+ 	int irq_flags;
+ 	uint32_t chans_available;
+ 	char chan_name[BCM2835_DMA_CHAN_NAME_SIZE];
+-	const struct of_device_id *of_id;
+ 	int chan_count, chan_start, chan_end;
+ 
++	of_id = of_match_node(bcm2835_dma_of_match, pdev->dev.of_node);
++	if (!of_id) {
++		dev_err(&pdev->dev, "Failed to match compatible string\n");
++		return -EINVAL;
++	}
++
++	cfg_data = of_id->data;
++
+ 	if (!pdev->dev.dma_mask)
+ 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+ 
+-	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
++	rc = dma_set_mask_and_coherent(&pdev->dev, cfg_data->dma_mask);
+ 	if (rc) {
+ 		dev_err(&pdev->dev, "Unable to set DMA mask\n");
+ 		return rc;
+@@ -1260,7 +1272,7 @@ static int bcm2835_dma_probe(struct plat
+ 		return -EINVAL;
+ 	}
+ 
+-	od->cfg_data = of_id->data;
++	od->cfg_data = cfg_data;
+ 
+ 	/* Request DMA channel mask from device tree */
+ 	if (of_property_read_u32(pdev->dev.of_node,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0300-ARM-proc-v7-Force-misalignment-of-early-stmia.patch b/target/linux/bcm27xx/patches-5.10/950-0300-ARM-proc-v7-Force-misalignment-of-early-stmia.patch
new file mode 100644
index 0000000000..3910f77230
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0300-ARM-proc-v7-Force-misalignment-of-early-stmia.patch
@@ -0,0 +1,60 @@
+From 9e5b2debe12d4e840a7d3ec0cf22b215396ed46e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 29 Jul 2020 13:47:55 +0100
+Subject: [PATCH] ARM: proc-v7: Force misalignment of early stmia
+
+In an attempt to prevent the problem of CPUn not starting, explicitly
+misalign the scratch space used to save registers acros the cache
+invalidation.
+
+Notes:
+At this stage in the boot process the core is running with its cache
+disabled. Before enabling the cache its contents must be explicitly
+invalidated, a process that requires quite a few registers that the
+caller must preserve. Evidence suggests that something is writing a
+block of zeroes over that space at a time when all other cores should
+be idle, possibly some kind of write-combiner, and the misalignment is
+designed to disrupt any write-coalescing.
+
+In truth, I don't understand why this patch works, and when the failure
+is so random it is hard to be certain that this isn't just rolling the
+dice again. One interesting test would be to change the "addeq r12, #4"s
+to "addeq r12, #0"s determine see if the offset itself is significant or
+just the additional code.
+
+See: https://github.com/Hexxeh/rpi-firmware/issues/232
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/mm/proc-v7.S | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/mm/proc-v7.S
++++ b/arch/arm/mm/proc-v7.S
+@@ -287,6 +287,8 @@ __v7_ca17mp_setup:
+ 	mov	r10, #0
+ 1:	adr	r0, __v7_setup_stack_ptr
+ 	ldr	r12, [r0]
++	tst	r12, #0x1f
++	addeq	r12, r12, #4
+ 	add	r12, r12, r0			@ the local stack
+ 	stmia	r12, {r1-r6, lr}		@ v7_invalidate_l1 touches r0-r6
+ 	bl      v7_invalidate_l1
+@@ -474,6 +476,8 @@ __v7_setup:
+ 	adr	r0, __v7_setup_stack_ptr
+ 	ldr	r12, [r0]
+ 	add	r12, r12, r0			@ the local stack
++	tst	r12, #0x1f
++	addeq	r12, r12, #4
+ 	stmia	r12, {r1-r6, lr}		@ v7_invalidate_l1 touches r0-r6
+ 	bl      v7_invalidate_l1
+ 	ldmia	r12, {r1-r6, lr}
+@@ -557,7 +561,7 @@ ENDPROC(__v7_setup)
+ 	.bss
+ 	.align	2
+ __v7_setup_stack:
+-	.space	4 * 7				@ 7 registers
++	.space	4 * 8				@ 7 registers + 1 spare
+ 
+ 	__INITDATA
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0301-media-bcm2835-unicam-Select-MEDIA_CONTROLLER-and-VID.patch b/target/linux/bcm27xx/patches-5.10/950-0301-media-bcm2835-unicam-Select-MEDIA_CONTROLLER-and-VID.patch
new file mode 100644
index 0000000000..b85588cc28
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0301-media-bcm2835-unicam-Select-MEDIA_CONTROLLER-and-VID.patch
@@ -0,0 +1,27 @@
+From 37e99c4779131e96caf9083b68dad151ef8a9219 Mon Sep 17 00:00:00 2001
+From: Hristo Venev <hristo@venev.name>
+Date: Wed, 19 Aug 2020 17:02:22 +0300
+Subject: [PATCH] media: bcm2835: unicam: Select MEDIA_CONTROLLER and
+ VIDEO_V4L2_SUBDEV_API
+
+That is what almost all other drivers appear to be doing.
+
+Signed-off-by: Hristo Venev <hristo@venev.name>
+---
+ drivers/media/platform/bcm2835/Kconfig | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/Kconfig
++++ b/drivers/media/platform/bcm2835/Kconfig
+@@ -2,8 +2,10 @@
+ 
+ config VIDEO_BCM2835_UNICAM
+ 	tristate "Broadcom BCM2835 Unicam video capture driver"
+-	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && MEDIA_CONTROLLER
++	depends on VIDEO_V4L2
+ 	depends on ARCH_BCM2835 || COMPILE_TEST
++	select VIDEO_V4L2_SUBDEV_API
++	select MEDIA_CONTROLLER
+ 	select VIDEOBUF2_DMA_CONTIG
+ 	select V4L2_FWNODE
+ 	help
diff --git a/target/linux/bcm27xx/patches-5.10/950-0302-staging-media-rpivid-Select-MEDIA_CONTROLLER-and-MED.patch b/target/linux/bcm27xx/patches-5.10/950-0302-staging-media-rpivid-Select-MEDIA_CONTROLLER-and-MED.patch
new file mode 100644
index 0000000000..9e28c0bba2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0302-staging-media-rpivid-Select-MEDIA_CONTROLLER-and-MED.patch
@@ -0,0 +1,32 @@
+From 09cc3528a822ee9d1f7be9e19af760b5e60f1c8f Mon Sep 17 00:00:00 2001
+From: Hristo Venev <hristo@venev.name>
+Date: Wed, 19 Aug 2020 17:05:53 +0300
+Subject: [PATCH] staging: media: rpivid: Select MEDIA_CONTROLLER and
+ MEDIA_CONTROLLER_REQUEST_API
+
+MEDIA_CONTROLLER_REQUEST_API is a hidden option. If rpivid depends on it,
+the user would need to first enable another driver that selects
+MEDIA_CONTROLLER_REQUEST_API, and only then rpivid would become available.
+
+By selecting it instead of depending on it, it becomes possible to enable
+rpivid without having to enable other potentially unnecessary drivers.
+
+Signed-off-by: Hristo Venev <hristo@venev.name>
+---
+ drivers/staging/media/rpivid/Kconfig | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/media/rpivid/Kconfig
++++ b/drivers/staging/media/rpivid/Kconfig
+@@ -3,9 +3,9 @@
+ config VIDEO_RPIVID
+ 	tristate "Rpi H265 driver"
+ 	depends on VIDEO_DEV && VIDEO_V4L2
+-	depends on MEDIA_CONTROLLER
+ 	depends on OF
+-	depends on MEDIA_CONTROLLER_REQUEST_API
++	select MEDIA_CONTROLLER
++	select MEDIA_CONTROLLER_REQUEST_API
+ 	select VIDEOBUF2_DMA_CONTIG
+ 	select V4L2_MEM2MEM_DEV
+ 	help
diff --git a/target/linux/bcm27xx/patches-5.10/950-0303-media-bcm2835-unicam-Drop-WARN-on-uing-direct-cache-.patch b/target/linux/bcm27xx/patches-5.10/950-0303-media-bcm2835-unicam-Drop-WARN-on-uing-direct-cache-.patch
new file mode 100644
index 0000000000..7526aa2d4c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0303-media-bcm2835-unicam-Drop-WARN-on-uing-direct-cache-.patch
@@ -0,0 +1,34 @@
+From b8f093d573b6de5ca22642c60abfe3f49fdfed6b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 27 Aug 2020 16:30:26 +0100
+Subject: [PATCH] media: bcm2835-unicam: Drop WARN on uing direct cache
+ alias
+
+Pi 0&1 pass all ARM accesses through the VPU L2 cache, therefore
+the dma-ranges property sets the cache alias bits to other
+than the direct alias, hence this WARN was firing.
+
+It was overprotective coding, so assume that everything is OK
+with the dma-ranges, and remove the WARN.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 7 -------
+ 1 file changed, 7 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -709,13 +709,6 @@ static void unicam_wr_dma_addr(struct un
+ {
+ 	dma_addr_t endaddr = dmaaddr + buffer_size;
+ 
+-	/*
+-	 * dmaaddr and endaddr should be a 32-bit address with the top two bits
+-	 * set to 0x3 to signify uncached access through the Videocore memory
+-	 * controller.
+-	 */
+-	WARN_ON((dmaaddr >> 30) != 0x3 || (endaddr >> 30) != 0x3);
+-
+ 	if (pad_id == IMAGE_PAD) {
+ 		reg_write(dev, UNICAM_IBSA0, dmaaddr);
+ 		reg_write(dev, UNICAM_IBEA0, endaddr);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0304-media-i2c-tc358743-Only-allow-supported-pixel-fmts-i.patch b/target/linux/bcm27xx/patches-5.10/950-0304-media-i2c-tc358743-Only-allow-supported-pixel-fmts-i.patch
new file mode 100644
index 0000000000..ca2c70cc3b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0304-media-i2c-tc358743-Only-allow-supported-pixel-fmts-i.patch
@@ -0,0 +1,30 @@
+From d542ce00f99420cce4ccaa9cb79e3a216c5ae583 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 10 Jul 2020 12:40:50 +0100
+Subject: [PATCH] media: i2c: tc358743: Only allow supported pixel fmts
+ in set_fmt
+
+Fix commit "media: tc358743: Return an appropriate colorspace from
+tc358743_set_fmt" to ensure that the format passed in to set_fmt
+is checked to be valid, and reset to the current format if not.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/tc358743.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -1731,8 +1731,10 @@ static int tc358743_set_fmt(struct v4l2_
+ 	u32 code = format->format.code; /* is overwritten by get_fmt */
+ 	int ret = tc358743_get_fmt(sd, cfg, format);
+ 
+-	format->format.code = code;
+-	format->format.colorspace = tc358743_g_colorspace(code);
++	if (code == MEDIA_BUS_FMT_RGB888_1X24 ||
++	    code == MEDIA_BUS_FMT_UYVY8_1X16)
++		format->format.code = code;
++	format->format.colorspace = tc358743_g_colorspace(format->format.code);
+ 
+ 	if (ret)
+ 		return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0305-media-i2c-ov9281-Add-support-for-8-bit-readout.patch b/target/linux/bcm27xx/patches-5.10/950-0305-media-i2c-ov9281-Add-support-for-8-bit-readout.patch
new file mode 100644
index 0000000000..145402e213
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0305-media-i2c-ov9281-Add-support-for-8-bit-readout.patch
@@ -0,0 +1,188 @@
+From 071d66e19764cb2019e95cb44d08a1848e688f12 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 7 Jul 2020 18:29:10 +0100
+Subject: [PATCH] media: i2c: ov9281: Add support for 8 bit readout
+
+The sensor supports 8 bit mode as well as 10bit, so add the
+relevant code to allow selection of this.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 66 ++++++++++++++++++++++++++++++--------
+ 1 file changed, 52 insertions(+), 14 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -29,11 +29,12 @@
+ 
+ #define OV9281_LINK_FREQ_400MHZ		400000000
+ #define OV9281_LANES			2
+-#define OV9281_BITS_PER_SAMPLE		10
+ 
+ /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */
+-#define OV9281_PIXEL_RATE		(OV9281_LINK_FREQ_400MHZ * 2 * \
+-					 OV9281_LANES / OV9281_BITS_PER_SAMPLE)
++#define OV9281_PIXEL_RATE_10BIT		(OV9281_LINK_FREQ_400MHZ * 2 * \
++					 OV9281_LANES / 10)
++#define OV9281_PIXEL_RATE_8BIT		(OV9281_LINK_FREQ_400MHZ * 2 * \
++					 OV9281_LANES / 8)
+ #define OV9281_XVCLK_FREQ		24000000
+ 
+ #define CHIP_ID				0x9281
+@@ -122,24 +123,25 @@ struct ov9281 {
+ 	struct v4l2_ctrl	*digi_gain;
+ 	struct v4l2_ctrl	*hblank;
+ 	struct v4l2_ctrl	*vblank;
++	struct v4l2_ctrl	*pixel_rate;
+ 	struct v4l2_ctrl	*test_pattern;
+ 	struct mutex		mutex;
+ 	bool			streaming;
+ 	bool			power_on;
+ 	const struct ov9281_mode *cur_mode;
++	u32			code;
+ };
+ 
+ #define to_ov9281(sd) container_of(sd, struct ov9281, subdev)
+ 
+ /*
+  * Xclk 24Mhz
+- * max_framerate 120fps
++ * max_framerate 120fps for 10 bit, 144fps for 8 bit.
+  * mipi_datarate per lane 800Mbps
+  */
+ static const struct regval ov9281_1280x800_regs[] = {
+ 	{0x0103, 0x01},
+ 	{0x0302, 0x32},
+-	{0x030d, 0x50},
+ 	{0x030e, 0x02},
+ 	{0x3001, 0x00},
+ 	{0x3004, 0x00},
+@@ -168,7 +170,6 @@ static const struct regval ov9281_1280x8
+ 	{0x3620, 0x6f},
+ 	{0x3632, 0x56},
+ 	{0x3633, 0x78},
+-	{0x3662, 0x05},
+ 	{0x3666, 0x00},
+ 	{0x366f, 0x5a},
+ 	{0x3680, 0x84},
+@@ -235,6 +236,18 @@ static const struct regval ov9281_1280x8
+ 	{REG_NULL, 0x00},
+ };
+ 
++static const struct regval op_10bit[] = {
++	{0x030d, 0x50},
++	{0x3662, 0x05},
++	{REG_NULL, 0x00},
++};
++
++static const struct regval op_8bit[] = {
++	{0x030d, 0x60},
++	{0x3662, 0x07},
++	{REG_NULL, 0x00},
++};
++
+ static const struct ov9281_mode supported_modes[] = {
+ 	{
+ 		.width = 1280,
+@@ -374,12 +387,13 @@ static int ov9281_set_fmt(struct v4l2_su
+ {
+ 	struct ov9281 *ov9281 = to_ov9281(sd);
+ 	const struct ov9281_mode *mode;
+-	s64 h_blank, vblank_def;
++	s64 h_blank, vblank_def, pixel_rate;
+ 
+ 	mutex_lock(&ov9281->mutex);
+ 
+ 	mode = ov9281_find_best_fit(fmt);
+-	fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
++	if (fmt->format.code != MEDIA_BUS_FMT_Y8_1X8)
++		fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
+ 	fmt->format.width = mode->width;
+ 	fmt->format.height = mode->height;
+ 	fmt->format.field = V4L2_FIELD_NONE;
+@@ -396,6 +410,7 @@ static int ov9281_set_fmt(struct v4l2_su
+ 		*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
+ 	} else {
+ 		ov9281->cur_mode = mode;
++		ov9281->code = fmt->format.code;
+ 		h_blank = mode->hts_def - mode->width;
+ 		__v4l2_ctrl_modify_range(ov9281->hblank, h_blank,
+ 					 h_blank, 1, h_blank);
+@@ -405,6 +420,11 @@ static int ov9281_set_fmt(struct v4l2_su
+ 					 OV9281_VTS_MAX - mode->height,
+ 					 1, vblank_def);
+ 		__v4l2_ctrl_s_ctrl(ov9281->vblank, vblank_def);
++
++		pixel_rate = (fmt->format.code == MEDIA_BUS_FMT_Y10_1X10) ?
++			OV9281_PIXEL_RATE_10BIT : OV9281_PIXEL_RATE_8BIT;
++		__v4l2_ctrl_modify_range(ov9281->pixel_rate, pixel_rate,
++					 pixel_rate, 1, pixel_rate);
+ 	}
+ 
+ 	mutex_unlock(&ov9281->mutex);
+@@ -425,7 +445,7 @@ static int ov9281_get_fmt(struct v4l2_su
+ 	} else {
+ 		fmt->format.width = mode->width;
+ 		fmt->format.height = mode->height;
+-		fmt->format.code = MEDIA_BUS_FMT_Y10_1X10;
++		fmt->format.code = ov9281->code;
+ 		fmt->format.field = V4L2_FIELD_NONE;
+ 		fmt->format.colorspace = V4L2_COLORSPACE_SRGB;
+ 		fmt->format.ycbcr_enc =
+@@ -446,9 +466,16 @@ static int ov9281_enum_mbus_code(struct
+ 				 struct v4l2_subdev_pad_config *cfg,
+ 				 struct v4l2_subdev_mbus_code_enum *code)
+ {
+-	if (code->index)
++	switch (code->index) {
++	default:
+ 		return -EINVAL;
+-	code->code = MEDIA_BUS_FMT_Y10_1X10;
++	case 0:
++		code->code = MEDIA_BUS_FMT_Y10_1X10;
++		break;
++	case 1:
++		code->code = MEDIA_BUS_FMT_Y8_1X8;
++		break;
++	}
+ 
+ 	return 0;
+ }
+@@ -460,7 +487,8 @@ static int ov9281_enum_frame_sizes(struc
+ 	if (fse->index >= ARRAY_SIZE(supported_modes))
+ 		return -EINVAL;
+ 
+-	if (fse->code != MEDIA_BUS_FMT_Y10_1X10)
++	if (fse->code != MEDIA_BUS_FMT_Y10_1X10 &&
++	    fse->code != MEDIA_BUS_FMT_Y8_1X8)
+ 		return -EINVAL;
+ 
+ 	fse->min_width  = supported_modes[fse->index].width;
+@@ -543,6 +571,13 @@ static int __ov9281_start_stream(struct
+ 	if (ret)
+ 		return ret;
+ 
++	if (ov9281->code == MEDIA_BUS_FMT_Y10_1X10)
++		ret = ov9281_write_array(ov9281->client, op_10bit);
++	else
++		ret = ov9281_write_array(ov9281->client, op_8bit);
++	if (ret)
++		return ret;
++
+ 	/* In case these controls are set before streaming */
+ 	mutex_unlock(&ov9281->mutex);
+ 	ret = v4l2_ctrl_handler_setup(&ov9281->ctrl_handler);
+@@ -849,8 +884,11 @@ static int ov9281_initialize_controls(st
+ 	if (ctrl)
+ 		ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+ 
+-	v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
+-			  0, OV9281_PIXEL_RATE, 1, OV9281_PIXEL_RATE);
++	ov9281->pixel_rate = v4l2_ctrl_new_std(handler, NULL,
++					       V4L2_CID_PIXEL_RATE,
++					       OV9281_PIXEL_RATE_10BIT,
++					       OV9281_PIXEL_RATE_10BIT, 1,
++					       OV9281_PIXEL_RATE_10BIT);
+ 
+ 	h_blank = mode->hts_def - mode->width;
+ 	ov9281->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0306-bcm2835-mmc-uninitialized_var-is-no-more.patch b/target/linux/bcm27xx/patches-5.10/950-0306-bcm2835-mmc-uninitialized_var-is-no-more.patch
new file mode 100644
index 0000000000..a89e4ab112
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0306-bcm2835-mmc-uninitialized_var-is-no-more.patch
@@ -0,0 +1,20 @@
+From 99c87c4c80fb0dd24f6849d0846c0c4a418903a9 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Thu, 3 Sep 2020 14:02:21 +0100
+Subject: [PATCH] bcm2835-mmc: uninitialized_var is no more
+
+---
+ drivers/mmc/host/bcm2835-mmc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mmc/host/bcm2835-mmc.c
++++ b/drivers/mmc/host/bcm2835-mmc.c
+@@ -367,7 +367,7 @@ static void bcm2835_bcm2835_mmc_read_blo
+ 	unsigned long flags;
+ 	size_t blksize, len, chunk;
+ 
+-	u32 uninitialized_var(scratch);
++	u32 scratch = 0;
+ 	u8 *buf;
+ 
+ 	blksize = host->data->blksz;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0307-dwc_otg-whitelist_table-is-now-productlist_table.patch b/target/linux/bcm27xx/patches-5.10/950-0307-dwc_otg-whitelist_table-is-now-productlist_table.patch
new file mode 100644
index 0000000000..6841a2df4a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0307-dwc_otg-whitelist_table-is-now-productlist_table.patch
@@ -0,0 +1,20 @@
+From 1ecaa185ff343a783c147b17dd85482c507d2d9e Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Thu, 3 Sep 2020 14:02:41 +0100
+Subject: [PATCH] dwc_otg: whitelist_table is now productlist_table
+
+---
+ drivers/usb/core/otg_productlist.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/usb/core/otg_productlist.h
++++ b/drivers/usb/core/otg_productlist.h
+@@ -139,7 +139,7 @@ static int is_targeted(struct usb_device
+ 		/* NOTE: can't use usb_match_id() since interface caches
+ 		 * aren't set up yet. this is cut/paste from that code.
+ 		 */
+-		for (id = whitelist_table; id->match_flags; id++) {
++		for (id = productlist_table; id->match_flags; id++) {
+ #ifdef DEBUG
+ 			dev_dbg(&dev->dev,
+ 				"ID: V:%04x P:%04x DC:%04x SC:%04x PR:%04x \n",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0308-vchiq_2835_arm-Implement-a-DMA-pool-for-small-bulk-t.patch b/target/linux/bcm27xx/patches-5.10/950-0308-vchiq_2835_arm-Implement-a-DMA-pool-for-small-bulk-t.patch
new file mode 100644
index 0000000000..991c962ac6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0308-vchiq_2835_arm-Implement-a-DMA-pool-for-small-bulk-t.patch
@@ -0,0 +1,122 @@
+From afbc6c9f890bd3d877451138b2ffd5bd19bfdf61 Mon Sep 17 00:00:00 2001
+From: detule <ogjoneski@gmail.com>
+Date: Tue, 2 Oct 2018 04:10:08 -0400
+Subject: [PATCH] vchiq_2835_arm: Implement a DMA pool for small bulk
+ transfers (#2699)
+
+During a bulk transfer we request a DMA allocation to hold the
+scatter-gather list.  Most of the time, this allocation is small
+(<< PAGE_SIZE), however it can be requested at a high enough frequency
+to cause fragmentation and/or stress the CMA allocator (think time
+spent in compaction here, or during allocations elsewhere).
+
+Implement a pool to serve up small DMA allocations, falling back
+to a coherent allocation if the request is greater than
+VCHIQ_DMA_POOL_SIZE.
+
+Signed-off-by: Oliver Gjoneski <ogjoneski@gmail.com>
+---
+ .../interface/vchiq_arm/vchiq_2835_arm.c      | 36 ++++++++++++++++---
+ 1 file changed, 32 insertions(+), 4 deletions(-)
+
+--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
++++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+@@ -7,6 +7,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/pagemap.h>
+ #include <linux/dma-mapping.h>
++#include <linux/dmapool.h>
+ #include <linux/io.h>
+ #include <linux/platform_device.h>
+ #include <linux/uaccess.h>
+@@ -29,6 +30,8 @@
+ #define BELL0	0x00
+ #define BELL2	0x08
+ 
++#define VCHIQ_DMA_POOL_SIZE PAGE_SIZE
++
+ struct vchiq_2835_state {
+ 	int inited;
+ 	struct vchiq_arm_state arm_state;
+@@ -38,6 +41,7 @@ struct vchiq_pagelist_info {
+ 	struct pagelist *pagelist;
+ 	size_t pagelist_buffer_size;
+ 	dma_addr_t dma_addr;
++	bool is_from_pool;
+ 	enum dma_data_direction dma_dir;
+ 	unsigned int num_pages;
+ 	unsigned int pages_need_release;
+@@ -58,6 +62,7 @@ static void __iomem *g_regs;
+  * of 32.
+  */
+ static unsigned int g_cache_line_size = 32;
++static struct dma_pool *g_dma_pool;
+ static unsigned int g_use_36bit_addrs = 0;
+ static unsigned int g_fragments_size;
+ static char *g_fragments_base;
+@@ -182,6 +187,13 @@ int vchiq_platform_init(struct platform_
+ 
+ 	g_dev = dev;
+ 	g_dma_dev = dma_dev ?: dev;
++	g_dma_pool = dmam_pool_create("vchiq_scatter_pool", dev,
++				      VCHIQ_DMA_POOL_SIZE, g_cache_line_size,
++				      0);
++	if (!g_dma_pool) {
++		dev_err(dev, "failed to create dma pool");
++		return -ENOMEM;
++	}
+ 
+ 	vchiq_log_info(vchiq_arm_log_level,
+ 		"vchiq_init - done (slots %pK, phys %pad)",
+@@ -314,8 +326,14 @@ cleanup_pagelistinfo(struct vchiq_pageli
+ 	if (pagelistinfo->pages_need_release)
+ 		unpin_user_pages(pagelistinfo->pages, pagelistinfo->num_pages);
+ 
+-	dma_free_coherent(g_dev, pagelistinfo->pagelist_buffer_size,
+-			  pagelistinfo->pagelist, pagelistinfo->dma_addr);
++	if (pagelistinfo->is_from_pool) {
++		dma_pool_free(g_dma_pool, pagelistinfo->pagelist,
++			      pagelistinfo->dma_addr);
++	} else {
++		dma_free_coherent(g_dev, pagelistinfo->pagelist_buffer_size,
++				  pagelistinfo->pagelist,
++				  pagelistinfo->dma_addr);
++	}
+ }
+ 
+ /* There is a potential problem with partial cache lines (pages?)
+@@ -336,6 +354,7 @@ create_pagelist(char *buf, char __user *
+ 	u32 *addrs;
+ 	unsigned int num_pages, offset, i, k;
+ 	int actual_pages;
++	bool is_from_pool;
+ 	size_t pagelist_size;
+ 	struct scatterlist *scatterlist, *sg;
+ 	int dma_buffers;
+@@ -365,8 +384,16 @@ create_pagelist(char *buf, char __user *
+ 	/* Allocate enough storage to hold the page pointers and the page
+ 	 * list
+ 	 */
+-	pagelist = dma_alloc_coherent(g_dev, pagelist_size, &dma_addr,
+-				      GFP_KERNEL);
++	if (pagelist_size > VCHIQ_DMA_POOL_SIZE) {
++		pagelist = dma_alloc_coherent(g_dev,
++					       pagelist_size,
++					       &dma_addr,
++					       GFP_KERNEL);
++		is_from_pool = false;
++	} else {
++		pagelist = dma_pool_alloc(g_dma_pool, GFP_KERNEL, &dma_addr);
++		is_from_pool = true;
++	}
+ 
+ 	vchiq_log_trace(vchiq_arm_log_level, "%s - %pK", __func__, pagelist);
+ 
+@@ -387,6 +414,7 @@ create_pagelist(char *buf, char __user *
+ 	pagelistinfo->pagelist = pagelist;
+ 	pagelistinfo->pagelist_buffer_size = pagelist_size;
+ 	pagelistinfo->dma_addr = dma_addr;
++	pagelistinfo->is_from_pool = is_from_pool;
+ 	pagelistinfo->dma_dir =  (type == PAGELIST_WRITE) ?
+ 				  DMA_TO_DEVICE : DMA_FROM_DEVICE;
+ 	pagelistinfo->num_pages = num_pages;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0309-include-firmware-Add-enum-for-RPI_FIRMWARE_FRAMEBUFF.patch b/target/linux/bcm27xx/patches-5.10/950-0309-include-firmware-Add-enum-for-RPI_FIRMWARE_FRAMEBUFF.patch
new file mode 100644
index 0000000000..fda153f06c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0309-include-firmware-Add-enum-for-RPI_FIRMWARE_FRAMEBUFF.patch
@@ -0,0 +1,23 @@
+From 80025c80d57bdd265e47d1bfe62e68f54ca672d5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 3 Sep 2020 17:09:07 +0100
+Subject: [PATCH] include/firmware: Add enum for
+ RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID
+
+Used by audio and FKMS.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ include/soc/bcm2835/raspberrypi-firmware.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -114,6 +114,7 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_TOUCHBUF =               0x0004000f,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_GPIOVIRTBUF =            0x00040010,
+ 	RPI_FIRMWARE_FRAMEBUFFER_RELEASE =                    0x00048001,
++	RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID =             0x00040016,
+ 	RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM =            0x00048013,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS =           0x00040013,
+ 	RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_SETTINGS =       0x00040014,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0310-vc4_hdmi-Remove-cec_available-flag-as-always-support.patch b/target/linux/bcm27xx/patches-5.10/950-0310-vc4_hdmi-Remove-cec_available-flag-as-always-support.patch
new file mode 100644
index 0000000000..a11a43f80c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0310-vc4_hdmi-Remove-cec_available-flag-as-always-support.patch
@@ -0,0 +1,44 @@
+From 8dda85398458dc330758ef5e1408d66995ffa068 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Thu, 7 May 2020 18:16:09 +0100
+Subject: [PATCH] vc4_hdmi: Remove cec_available flag as always
+ supported
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ----
+ drivers/gpu/drm/vc4/vc4_hdmi.h | 3 ---
+ 2 files changed, 7 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1488,9 +1488,6 @@ static int vc4_hdmi_cec_init(struct vc4_
+ 	u32 value;
+ 	int ret;
+ 
+-	if (!vc4_hdmi->variant->cec_available)
+-		return 0;
+-
+ 	vc4_hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops,
+ 						  vc4_hdmi, "vc4",
+ 						  CEC_CAP_DEFAULTS |
+@@ -1910,7 +1907,6 @@ static const struct vc4_hdmi_variant bcm
+ 	.debugfs_name		= "hdmi_regs",
+ 	.card_name		= "vc4-hdmi",
+ 	.max_pixel_clock	= 162000000,
+-	.cec_available		= true,
+ 	.registers		= vc4_hdmi_fields,
+ 	.num_registers		= ARRAY_SIZE(vc4_hdmi_fields),
+ 
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -43,9 +43,6 @@ struct vc4_hdmi_variant {
+ 	/* Filename to expose the registers in debugfs */
+ 	const char *debugfs_name;
+ 
+-	/* Set to true when the CEC support is available */
+-	bool cec_available;
+-
+ 	/* Maximum pixel clock supported by the controller (in Hz) */
+ 	unsigned long long max_pixel_clock;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0311-drm-vc4-Adopt-the-dma-configuration-from-the-HVS-or-.patch b/target/linux/bcm27xx/patches-5.10/950-0311-drm-vc4-Adopt-the-dma-configuration-from-the-HVS-or-.patch
new file mode 100644
index 0000000000..b99102f6d2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0311-drm-vc4-Adopt-the-dma-configuration-from-the-HVS-or-.patch
@@ -0,0 +1,54 @@
+From d57ee5afedf0b1b9a9afb29357c484acda5a40af Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 19 May 2020 14:54:28 +0100
+Subject: [PATCH] drm/vc4: Adopt the dma configuration from the HVS or
+ V3D component
+
+vc4_drv isn't necessarily under the /soc node in DT as it is a
+virtual device, but it is the one that does the allocations.
+The DMA addresses are consumed by primarily the HVS or V3D, and
+those require VideoCore cache alias address mapping, and so will be
+under /soc.
+
+During probe find the a suitable device node for HVS or V3D,
+and adopt the DMA configuration of that node.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -246,6 +246,14 @@ static void vc4_match_add_drivers(struct
+ 	}
+ }
+ 
++const struct of_device_id vc4_dma_range_matches[] = {
++	{ .compatible = "brcm,bcm2835-hvs" },
++	{ .compatible = "brcm,bcm2835-v3d" },
++	{ .compatible = "brcm,cygnus-v3d" },
++	{ .compatible = "brcm,vc4-v3d" },
++	{}
++};
++
+ static int vc4_drm_bind(struct device *dev)
+ {
+ 	struct platform_device *pdev = to_platform_device(dev);
+@@ -263,6 +271,16 @@ static int vc4_drm_bind(struct device *d
+ 		vc4_drm_driver.driver_features &= ~DRIVER_RENDER;
+ 	of_node_put(node);
+ 
++	node = of_find_matching_node_and_match(NULL, vc4_dma_range_matches,
++					       NULL);
++	if (node) {
++		ret = of_dma_configure(dev, node, true);
++		of_node_put(node);
++
++		if (ret)
++			return ret;
++	}
++
+ 	vc4 = devm_drm_dev_alloc(dev, &vc4_drm_driver, struct vc4_dev, base);
+ 	if (IS_ERR(vc4))
+ 		return PTR_ERR(vc4);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch b/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch
new file mode 100644
index 0000000000..3ab091ba33
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch
@@ -0,0 +1,42 @@
+From 1a0b802bb6bca3b42034245d35b56309749a362c Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 23 Jun 2020 18:37:01 +0100
+Subject: [PATCH] vc4_hdmi: Set HD_CTL_WHOLSMP and HD_CTL_CHALIGN_SET
+
+Symptom is random switching of speakers when using multichannel.
+
+Repeatedly running speakertest -c8 occasionally starts with
+channels jumbled. This is fixed with HD_CTL_WHOLSMP.
+
+The other bit looks beneficial and apears harmless in testing so
+I'd suggest adding it too.
+
+Documentation says: HD_CTL_WHILSMP_SET
+Wait for whole sample. When this bit is set MAI transmit will start
+only when there is at least one whole sample available in the fifo.
+
+Documentation says: HD_CTL_CHALIGN_SET
+Channel Align When Overflow. This bit is used to realign the audio
+channels in case of an overflow.
+If this bit is set, after the detection of an overflow, equal
+amount of dummy words to the missing words will be written to fifo,
+filling up the broken sample and maintaining alignment.
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1074,7 +1074,9 @@ static int vc4_hdmi_audio_trigger(struct
+ 		HDMI_WRITE(HDMI_MAI_CTL,
+ 			   VC4_SET_FIELD(vc4_hdmi->audio.channels,
+ 					 VC4_HD_MAI_CTL_CHNUM) |
+-			   VC4_HD_MAI_CTL_ENABLE);
++					 VC4_HD_MAI_CTL_WHOLSMP |
++					 VC4_HD_MAI_CTL_CHALIGN |
++					 VC4_HD_MAI_CTL_ENABLE);
+ 		break;
+ 	case SNDRV_PCM_TRIGGER_STOP:
+ 		HDMI_WRITE(HDMI_MAI_CTL,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch b/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch
new file mode 100644
index 0000000000..a1f423cefb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch
@@ -0,0 +1,124 @@
+From 80ba4d12d096a8f7855835ee54dc17d1e3a0d31a Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Tue, 10 Mar 2020 22:21:15 +0000
+Subject: [PATCH] vc4_hdmi: Set HDMI_MAI_FMT
+
+The hardware uses this for generating the right audio
+data island packets when using formats other than PCM
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 48 ++++++++++++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_regs.h | 30 +++++++++++++++++++++
+ 2 files changed, 78 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -988,6 +988,44 @@ static void vc4_hdmi_audio_shutdown(stru
+ 	vc4_hdmi->audio.substream = NULL;
+ }
+ 
++static int sample_rate_to_mai_fmt(int samplerate)
++{
++	switch (samplerate) {
++	case 8000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_8000;
++	case 11025:
++		return VC4_HDMI_MAI_SAMPLE_RATE_11025;
++	case 12000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_12000;
++	case 16000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_16000;
++	case 22050:
++		return VC4_HDMI_MAI_SAMPLE_RATE_22050;
++	case 24000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_24000;
++	case 32000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_32000;
++	case 44100:
++		return VC4_HDMI_MAI_SAMPLE_RATE_44100;
++	case 48000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_48000;
++	case 64000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_64000;
++	case 88200:
++		return VC4_HDMI_MAI_SAMPLE_RATE_88200;
++	case 96000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_96000;
++	case 128000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_128000;
++	case 176400:
++		return VC4_HDMI_MAI_SAMPLE_RATE_176400;
++	case 192000:
++		return VC4_HDMI_MAI_SAMPLE_RATE_192000;
++	default:
++		return VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED;
++	}
++}
++
+ /* HDMI audio codec callbacks */
+ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream,
+ 				    struct snd_pcm_hw_params *params,
+@@ -998,6 +1036,8 @@ static int vc4_hdmi_audio_hw_params(stru
+ 	struct device *dev = &vc4_hdmi->pdev->dev;
+ 	u32 audio_packet_config, channel_mask;
+ 	u32 channel_map;
++	u32 mai_audio_format;
++	u32 mai_sample_rate;
+ 
+ 	if (substream != vc4_hdmi->audio.substream)
+ 		return -EINVAL;
+@@ -1018,6 +1058,14 @@ static int vc4_hdmi_audio_hw_params(stru
+ 
+ 	vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
+ 
++	mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
++	mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
++	HDMI_WRITE(HDMI_MAI_FMT,
++		   VC4_SET_FIELD(mai_sample_rate,
++				 VC4_HDMI_MAI_FORMAT_SAMPLE_RATE) |
++		   VC4_SET_FIELD(mai_audio_format,
++				 VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT));
++
+ 	/* The B frame identifier should match the value used by alsa-lib (8) */
+ 	audio_packet_config =
+ 		VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT |
+--- a/drivers/gpu/drm/vc4/vc4_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_regs.h
+@@ -516,6 +516,36 @@
+ # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_MASK			VC4_MASK(7, 0)
+ # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_SHIFT			0
+ 
++# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_MASK		VC4_MASK(23, 16)
++# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_SHIFT		16
++
++enum {
++	VC4_HDMI_MAI_FORMAT_PCM = 2,
++	VC4_HDMI_MAI_FORMAT_HBR = 200,
++};
++
++# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_MASK		VC4_MASK(15, 8)
++# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_SHIFT		8
++
++enum {
++	VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED = 0,
++	VC4_HDMI_MAI_SAMPLE_RATE_8000 = 1,
++	VC4_HDMI_MAI_SAMPLE_RATE_11025 = 2,
++	VC4_HDMI_MAI_SAMPLE_RATE_12000 = 3,
++	VC4_HDMI_MAI_SAMPLE_RATE_16000 = 4,
++	VC4_HDMI_MAI_SAMPLE_RATE_22050 = 5,
++	VC4_HDMI_MAI_SAMPLE_RATE_24000 = 6,
++	VC4_HDMI_MAI_SAMPLE_RATE_32000 = 7,
++	VC4_HDMI_MAI_SAMPLE_RATE_44100 = 8,
++	VC4_HDMI_MAI_SAMPLE_RATE_48000 = 9,
++	VC4_HDMI_MAI_SAMPLE_RATE_64000 = 10,
++	VC4_HDMI_MAI_SAMPLE_RATE_88200 = 11,
++	VC4_HDMI_MAI_SAMPLE_RATE_96000 = 12,
++	VC4_HDMI_MAI_SAMPLE_RATE_128000 = 13,
++	VC4_HDMI_MAI_SAMPLE_RATE_176400 = 14,
++	VC4_HDMI_MAI_SAMPLE_RATE_192000 = 15,
++};
++
+ # define VC4_HDMI_RAM_PACKET_ENABLE		BIT(16)
+ 
+ /* When set, the CTS_PERIOD counts based on MAI bus sync pulse instead
diff --git a/target/linux/bcm27xx/patches-5.10/950-0314-drm-vc4-add-iec958-controls-to-vc4_hdmi.patch b/target/linux/bcm27xx/patches-5.10/950-0314-drm-vc4-add-iec958-controls-to-vc4_hdmi.patch
new file mode 100644
index 0000000000..9369658500
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0314-drm-vc4-add-iec958-controls-to-vc4_hdmi.patch
@@ -0,0 +1,119 @@
+From 29e5bf9305e98a57a895d6806fafa6e67f257fd8 Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Tue, 17 Mar 2020 12:12:22 +0100
+Subject: [PATCH] drm/vc4: add iec958 controls to vc4_hdmi
+
+Although vc4 get an IEC958 formatted stream passed in from userspace
+the driver needs the info from the channel status bits to properly
+set up the hardware, eg for HBR passthrough.
+
+Add iec958 controls so the channel status bits can be passed in
+from userspace.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 60 ++++++++++++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  2 ++
+ 2 files changed, 62 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -44,6 +44,7 @@
+ #include <linux/pm_runtime.h>
+ #include <linux/rational.h>
+ #include <linux/reset.h>
++#include <sound/asoundef.h>
+ #include <sound/dmaengine_pcm.h>
+ #include <sound/pcm_drm_eld.h>
+ #include <sound/pcm_params.h>
+@@ -1179,6 +1180,47 @@ static int vc4_hdmi_audio_eld_ctl_get(st
+ 	return 0;
+ }
+ 
++static int vc4_spdif_info(struct snd_kcontrol *kcontrol,
++			  struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
++	uinfo->count = 1;
++	return 0;
++}
++
++static int vc4_spdif_playback_get(struct snd_kcontrol *kcontrol,
++				  struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
++	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
++
++	memcpy(ucontrol->value.iec958.status, vc4_hdmi->audio.iec_status,
++	       sizeof(vc4_hdmi->audio.iec_status));
++
++	return 0;
++}
++
++static int vc4_spdif_playback_put(struct snd_kcontrol *kcontrol,
++				  struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
++	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
++
++	memcpy(vc4_hdmi->audio.iec_status, ucontrol->value.iec958.status,
++	       sizeof(vc4_hdmi->audio.iec_status));
++
++	return 0;
++}
++
++static int vc4_spdif_mask_get(struct snd_kcontrol *kcontrol,
++			      struct snd_ctl_elem_value *ucontrol)
++{
++	memset(ucontrol->value.iec958.status, 0xff,
++	       sizeof_field(struct vc4_hdmi_audio, iec_status));
++
++	return 0;
++}
++
+ static const struct snd_kcontrol_new vc4_hdmi_audio_controls[] = {
+ 	{
+ 		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+@@ -1188,6 +1230,19 @@ static const struct snd_kcontrol_new vc4
+ 		.info = vc4_hdmi_audio_eld_ctl_info,
+ 		.get = vc4_hdmi_audio_eld_ctl_get,
+ 	},
++	{
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
++		.info =    vc4_spdif_info,
++		.get =     vc4_spdif_playback_get,
++		.put =     vc4_spdif_playback_put,
++	},
++	{
++		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
++		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
++		.info =    vc4_spdif_info,
++		.get =     vc4_spdif_mask_get,
++	},
+ };
+ 
+ static const struct snd_soc_dapm_widget vc4_hdmi_audio_widgets[] = {
+@@ -1308,6 +1363,11 @@ static int vc4_hdmi_audio_init(struct vc
+ 	vc4_hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ 	vc4_hdmi->audio.dma_data.maxburst = 2;
+ 
++	vc4_hdmi->audio.iec_status[0] = IEC958_AES0_CON_NOT_COPYRIGHT;
++	vc4_hdmi->audio.iec_status[1] =
++		IEC958_AES1_CON_ORIGINAL | IEC958_AES1_CON_PCM_CODER;
++	vc4_hdmi->audio.iec_status[3] = IEC958_AES3_CON_FS_48000;
++
+ 	ret = devm_snd_dmaengine_pcm_register(dev, &pcm_conf, 0);
+ 	if (ret) {
+ 		dev_err(dev, "Could not register PCM component: %d\n", ret);
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -107,6 +107,8 @@ struct vc4_hdmi_audio {
+ 	struct snd_pcm_substream *substream;
+ 
+ 	bool streaming;
++
++	unsigned char iec_status[4];
+ };
+ 
+ /* General HDMI hardware state. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch b/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch
new file mode 100644
index 0000000000..cfe27b866a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch
@@ -0,0 +1,58 @@
+From 7b6cfdfc74c7e9c00060a0c4146a6358b261f7db Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Thu, 19 Mar 2020 20:00:35 +0100
+Subject: [PATCH] drm/vc4: move setup from hw_params to prepare
+
+Configuring HDMI audio registers in prepare allows us to take
+IEC958 bits into account which are set by the alsa hook after
+the hw_params call.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 20 +++++++++++---------
+ 1 file changed, 11 insertions(+), 9 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1028,9 +1028,8 @@ static int sample_rate_to_mai_fmt(int sa
+ }
+ 
+ /* HDMI audio codec callbacks */
+-static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream,
+-				    struct snd_pcm_hw_params *params,
+-				    struct snd_soc_dai *dai)
++static int vc4_hdmi_audio_prepare(struct snd_pcm_substream *substream,
++				  struct snd_soc_dai *dai)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);
+ 	struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
+@@ -1043,12 +1042,15 @@ static int vc4_hdmi_audio_hw_params(stru
+ 	if (substream != vc4_hdmi->audio.substream)
+ 		return -EINVAL;
+ 
+-	dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
+-		params_rate(params), params_width(params),
+-		params_channels(params));
++	dev_dbg(dev, "%s: %u Hz, %d bit, %d channels AES0=%02x\n",
++		__func__,
++		substream->runtime->rate,
++		snd_pcm_format_width(substream->runtime->format),
++		substream->runtime->channels,
++		vc4_hdmi->audio.iec_status[0]);
+ 
+-	vc4_hdmi->audio.channels = params_channels(params);
+-	vc4_hdmi->audio.samplerate = params_rate(params);
++	vc4_hdmi->audio.channels = substream->runtime->channels;
++	vc4_hdmi->audio.samplerate = substream->runtime->rate;
+ 
+ 	HDMI_WRITE(HDMI_MAI_CTL,
+ 		   VC4_HD_MAI_CTL_RESET |
+@@ -1270,7 +1272,7 @@ static const struct snd_soc_component_dr
+ static const struct snd_soc_dai_ops vc4_hdmi_audio_dai_ops = {
+ 	.startup = vc4_hdmi_audio_startup,
+ 	.shutdown = vc4_hdmi_audio_shutdown,
+-	.hw_params = vc4_hdmi_audio_hw_params,
++	.prepare = vc4_hdmi_audio_prepare,
+ 	.set_fmt = vc4_hdmi_audio_set_fmt,
+ 	.trigger = vc4_hdmi_audio_trigger,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0316-drm-vc4-enable-HBR-MAI-format-on-HBR-streams.patch b/target/linux/bcm27xx/patches-5.10/950-0316-drm-vc4-enable-HBR-MAI-format-on-HBR-streams.patch
new file mode 100644
index 0000000000..f48a12bd6e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0316-drm-vc4-enable-HBR-MAI-format-on-HBR-streams.patch
@@ -0,0 +1,25 @@
+From 465b5e6889b1af1c9c061751a0ee234a27644030 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Fri, 10 Jul 2020 11:51:16 +0100
+Subject: [PATCH] drm/vc4: enable HBR MAI format on HBR streams
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1062,7 +1062,11 @@ static int vc4_hdmi_audio_prepare(struct
+ 	vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
+ 
+ 	mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
+-	mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
++	if (vc4_hdmi->audio.iec_status[0] & IEC958_AES0_NONAUDIO &&
++	    vc4_hdmi->audio.channels == 8)
++		mai_audio_format = VC4_HDMI_MAI_FORMAT_HBR;
++	else
++		mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
+ 	HDMI_WRITE(HDMI_MAI_FMT,
+ 		   VC4_SET_FIELD(mai_sample_rate,
+ 				 VC4_HDMI_MAI_FORMAT_SAMPLE_RATE) |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch b/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch
new file mode 100644
index 0000000000..96b5456d4b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch
@@ -0,0 +1,47 @@
+From 3c398513990aa0edc5b9ebfbdd2395623562c6e4 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Thu, 25 Jun 2020 18:48:40 +0100
+Subject: [PATCH] vc4_hdmi: Remove firmware logic for MAI threshold
+ setting
+
+This was a workaround for bugs in hardware on earlier Pi models
+and wasn't totally successful.
+
+It makes audio quality worse on a Pi4 at the higher sample rates
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 22 ++++++----------------
+ 1 file changed, 6 insertions(+), 16 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1083,22 +1083,12 @@ static int vc4_hdmi_audio_prepare(struct
+ 	audio_packet_config |= VC4_SET_FIELD(channel_mask,
+ 					     VC4_HDMI_AUDIO_PACKET_CEA_MASK);
+ 
+-	/* Set the MAI threshold.  This logic mimics the firmware's. */
+-	if (vc4_hdmi->audio.samplerate > 96000) {
+-		HDMI_WRITE(HDMI_MAI_THR,
+-			   VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQHIGH) |
+-			   VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW));
+-	} else if (vc4_hdmi->audio.samplerate > 48000) {
+-		HDMI_WRITE(HDMI_MAI_THR,
+-			   VC4_SET_FIELD(0x14, VC4_HD_MAI_THR_DREQHIGH) |
+-			   VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW));
+-	} else {
+-		HDMI_WRITE(HDMI_MAI_THR,
+-			   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
+-			   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
+-			   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
+-			   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
+-	}
++	/* Set the MAI threshold */
++	HDMI_WRITE(HDMI_MAI_THR,
++		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
++		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
++		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
++		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
+ 
+ 	HDMI_WRITE(HDMI_MAI_CONFIG,
+ 		   VC4_HDMI_MAI_CONFIG_BIT_REVERSE |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0318-vc_hdmi-Set-VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE.patch b/target/linux/bcm27xx/patches-5.10/950-0318-vc_hdmi-Set-VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE.patch
new file mode 100644
index 0000000000..c5e1baa02b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0318-vc_hdmi-Set-VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE.patch
@@ -0,0 +1,24 @@
+From f4a590c59a65381a0b9aa045e5fc493b3dbb5945 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 30 Jun 2020 11:23:49 +0100
+Subject: [PATCH] vc_hdmi: Set VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE
+
+Without this bit set, HDMI_MAI_FORMAT doesn't pick up
+the format and samplerate from DVP_CFG_MAI0_FMT and you
+can't get HDMI_HDMI_13_AUDIO_STATUS_1 to indicate HBR mode
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1092,6 +1092,7 @@ static int vc4_hdmi_audio_prepare(struct
+ 
+ 	HDMI_WRITE(HDMI_MAI_CONFIG,
+ 		   VC4_HDMI_MAI_CONFIG_BIT_REVERSE |
++		   VC4_HDMI_MAI_CONFIG_FORMAT_REVERSE |
+ 		   VC4_SET_FIELD(channel_mask, VC4_HDMI_MAI_CHANNEL_MASK));
+ 
+ 	channel_map = vc4_hdmi->variant->channel_map(vc4_hdmi, channel_mask);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0319-drm-vc4-Add-support-for-DRM_FORMAT_P030-to-vc4-plane.patch b/target/linux/bcm27xx/patches-5.10/950-0319-drm-vc4-Add-support-for-DRM_FORMAT_P030-to-vc4-plane.patch
new file mode 100644
index 0000000000..c3db8c7319
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0319-drm-vc4-Add-support-for-DRM_FORMAT_P030-to-vc4-plane.patch
@@ -0,0 +1,163 @@
+From 286cf26ca3f6628a82c8c37e7059585c8389b82a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 24 Jan 2020 14:25:41 +0000
+Subject: [PATCH] drm/vc4: Add support for DRM_FORMAT_P030 to vc4
+ planes
+
+This currently doesn't handle non-zero source rectangles correctly,
+but add support for DRM_FORMAT_P030 with DRM_FORMAT_MOD_BROADCOM_SAND128
+modifier to planes when running on HVS5.
+
+WIP still for source cropping SAND/P030 formats
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 79 ++++++++++++++++++++++++---------
+ 1 file changed, 57 insertions(+), 22 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -33,6 +33,7 @@ static const struct hvs_format {
+ 	u32 hvs; /* HVS_FORMAT_* */
+ 	u32 pixel_order;
+ 	u32 pixel_order_hvs5;
++	bool hvs5_only;
+ } hvs_formats[] = {
+ 	{
+ 		.drm = DRM_FORMAT_XRGB8888,
+@@ -128,6 +129,12 @@ static const struct hvs_format {
+ 		.hvs = HVS_PIXEL_FORMAT_YCBCR_YUV422_2PLANE,
+ 		.pixel_order = HVS_PIXEL_ORDER_XYCRCB,
+ 	},
++	{
++		.drm = DRM_FORMAT_P030,
++		.hvs = HVS_PIXEL_FORMAT_YCBCR_10BIT,
++		.pixel_order = HVS_PIXEL_ORDER_XYCBCR,
++		.hvs5_only = true,
++	},
+ };
+ 
+ static const struct hvs_format *vc4_get_hvs_format(u32 drm_format)
+@@ -769,27 +776,33 @@ static int vc4_plane_mode_set(struct drm
+ 		uint32_t param = fourcc_mod_broadcom_param(fb->modifier);
+ 		u32 tile_w, tile, x_off, pix_per_tile;
+ 
+-		hvs_format = HVS_PIXEL_FORMAT_H264;
+-
+-		switch (base_format_mod) {
+-		case DRM_FORMAT_MOD_BROADCOM_SAND64:
+-			tiling = SCALER_CTL0_TILING_64B;
+-			tile_w = 64;
+-			break;
+-		case DRM_FORMAT_MOD_BROADCOM_SAND128:
++		if (fb->format->format == DRM_FORMAT_P030) {
++			hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT;
+ 			tiling = SCALER_CTL0_TILING_128B;
+-			tile_w = 128;
+-			break;
+-		case DRM_FORMAT_MOD_BROADCOM_SAND256:
+-			tiling = SCALER_CTL0_TILING_256B_OR_T;
+-			tile_w = 256;
+-			break;
+-		default:
+-			break;
+-		}
++			tile_w = 96;
++		} else {
++			hvs_format = HVS_PIXEL_FORMAT_H264;
+ 
++			switch (base_format_mod) {
++			case DRM_FORMAT_MOD_BROADCOM_SAND64:
++				tiling = SCALER_CTL0_TILING_64B;
++				tile_w = 64;
++				break;
++			case DRM_FORMAT_MOD_BROADCOM_SAND128:
++				tiling = SCALER_CTL0_TILING_128B;
++				tile_w = 128;
++				break;
++			case DRM_FORMAT_MOD_BROADCOM_SAND256:
++				tiling = SCALER_CTL0_TILING_256B_OR_T;
++				tile_w = 256;
++				break;
++			default:
++				break;
++			}
++		}
+ 		if (param > SCALER_TILE_HEIGHT_MASK) {
+-			DRM_DEBUG_KMS("SAND height too large (%d)\n", param);
++			DRM_DEBUG_KMS("SAND height too large (%d)\n",
++				      param);
+ 			return -EINVAL;
+ 		}
+ 
+@@ -799,6 +812,13 @@ static int vc4_plane_mode_set(struct drm
+ 
+ 		/* Adjust the base pointer to the first pixel to be scanned
+ 		 * out.
++		 *
++		 * For P030, y_ptr [31:4] is the 128bit word for the start pixel
++		 * y_ptr [3:0] is the pixel (0-11) contained within that 128bit
++		 * word that should be taken as the first pixel.
++		 * Ditto uv_ptr [31:4] vs [3:0], however [3:0] contains the
++		 * element within the 128bit word, eg for pixel 3 the value
++		 * should be 6.
+ 		 */
+ 		for (i = 0; i < num_planes; i++) {
+ 			vc4_state->offsets[i] += param * tile_w * tile;
+@@ -960,7 +980,8 @@ static int vc4_plane_mode_set(struct drm
+ 
+ 	/* Pitch word 1/2 */
+ 	for (i = 1; i < num_planes; i++) {
+-		if (hvs_format != HVS_PIXEL_FORMAT_H264) {
++		if (hvs_format != HVS_PIXEL_FORMAT_H264 &&
++		    hvs_format != HVS_PIXEL_FORMAT_YCBCR_10BIT) {
+ 			vc4_dlist_write(vc4_state,
+ 					VC4_SET_FIELD(fb->pitches[i],
+ 						      SCALER_SRC_PITCH));
+@@ -1320,6 +1341,13 @@ static bool vc4_format_mod_supported(str
+ 		default:
+ 			return false;
+ 		}
++	case DRM_FORMAT_P030:
++		switch (fourcc_mod_broadcom_mod(modifier)) {
++		case DRM_FORMAT_MOD_BROADCOM_SAND128:
++			return true;
++		default:
++			return false;
++		}
+ 	case DRM_FORMAT_RGBX1010102:
+ 	case DRM_FORMAT_BGRX1010102:
+ 	case DRM_FORMAT_RGBA1010102:
+@@ -1352,8 +1380,11 @@ struct drm_plane *vc4_plane_init(struct
+ 	struct drm_plane *plane = NULL;
+ 	struct vc4_plane *vc4_plane;
+ 	u32 formats[ARRAY_SIZE(hvs_formats)];
++	int num_formats = 0;
+ 	int ret = 0;
+ 	unsigned i;
++	bool hvs5 = of_device_is_compatible(dev->dev->of_node,
++					    "brcm,bcm2711-vc5");
+ 	static const uint64_t modifiers[] = {
+ 		DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
+ 		DRM_FORMAT_MOD_BROADCOM_SAND128,
+@@ -1368,13 +1399,17 @@ struct drm_plane *vc4_plane_init(struct
+ 	if (!vc4_plane)
+ 		return ERR_PTR(-ENOMEM);
+ 
+-	for (i = 0; i < ARRAY_SIZE(hvs_formats); i++)
+-		formats[i] = hvs_formats[i].drm;
++	for (i = 0; i < ARRAY_SIZE(hvs_formats); i++) {
++		if (!hvs_formats[i].hvs5_only || hvs5) {
++			formats[num_formats] = hvs_formats[i].drm;
++			num_formats++;
++		}
++	}
+ 
+ 	plane = &vc4_plane->base;
+ 	ret = drm_universal_plane_init(dev, plane, 0,
+ 				       &vc4_plane_funcs,
+-				       formats, ARRAY_SIZE(formats),
++				       formats, num_formats,
+ 				       modifiers, type, NULL);
+ 	if (ret)
+ 		return ERR_PTR(ret);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0320-drm-vc4-Add-support-for-YUV-color-encodings-and-rang.patch b/target/linux/bcm27xx/patches-5.10/950-0320-drm-vc4-Add-support-for-YUV-color-encodings-and-rang.patch
new file mode 100644
index 0000000000..23f0533472
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0320-drm-vc4-Add-support-for-YUV-color-encodings-and-rang.patch
@@ -0,0 +1,139 @@
+From 9582109f14a5e357c6287b5ab658293e8359fa47 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 17 Sep 2019 18:28:17 +0100
+Subject: [PATCH] drm/vc4: Add support for YUV color encodings and
+ ranges
+
+The BT601/BT709 color encoding and limited vs full
+range properties were not being exposed, defaulting
+always to BT601 limited range.
+
+Expose the parameters and set the registers appropriately.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 72 +++++++++++++++++++++++++++++++--
+ drivers/gpu/drm/vc4/vc4_regs.h  |  3 ++
+ 2 files changed, 72 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -628,6 +628,53 @@ static int vc4_plane_allocate_lbm(struct
+ 	return 0;
+ }
+ 
++/* The colorspace conversion matrices are held in 3 entries in the dlist.
++ * Create an array of them, with entries for each full and limited mode, and
++ * each supported colorspace.
++ */
++#define VC4_LIMITED_RANGE	0
++#define VC4_FULL_RANGE		1
++
++static const u32 colorspace_coeffs[2][DRM_COLOR_ENCODING_MAX][3] = {
++	{
++		/* Limited range */
++		{
++			/* BT601 */
++			SCALER_CSC0_ITR_R_601_5,
++			SCALER_CSC1_ITR_R_601_5,
++			SCALER_CSC2_ITR_R_601_5,
++		}, {
++			/* BT709 */
++			SCALER_CSC0_ITR_R_709_3,
++			SCALER_CSC1_ITR_R_709_3,
++			SCALER_CSC2_ITR_R_709_3,
++		}, {
++			/* BT2020. Not supported yet - copy 601 */
++			SCALER_CSC0_ITR_R_601_5,
++			SCALER_CSC1_ITR_R_601_5,
++			SCALER_CSC2_ITR_R_601_5,
++		}
++	}, {
++		/* Full range */
++		{
++			/* JFIF */
++			SCALER_CSC0_JPEG_JFIF,
++			SCALER_CSC1_JPEG_JFIF,
++			SCALER_CSC2_JPEG_JFIF,
++		}, {
++			/* BT709 */
++			SCALER_CSC0_ITR_R_709_3_FR,
++			SCALER_CSC1_ITR_R_709_3_FR,
++			SCALER_CSC2_ITR_R_709_3_FR,
++		}, {
++			/* BT2020. Not supported yet - copy JFIF */
++			SCALER_CSC0_JPEG_JFIF,
++			SCALER_CSC1_JPEG_JFIF,
++			SCALER_CSC2_JPEG_JFIF,
++		}
++	}
++};
++
+ /* Writes out a full display list for an active plane to the plane's
+  * private dlist state.
+  */
+@@ -992,9 +1039,20 @@ static int vc4_plane_mode_set(struct drm
+ 
+ 	/* Colorspace conversion words */
+ 	if (vc4_state->is_yuv) {
+-		vc4_dlist_write(vc4_state, SCALER_CSC0_ITR_R_601_5);
+-		vc4_dlist_write(vc4_state, SCALER_CSC1_ITR_R_601_5);
+-		vc4_dlist_write(vc4_state, SCALER_CSC2_ITR_R_601_5);
++		enum drm_color_encoding color_encoding = state->color_encoding;
++		enum drm_color_range color_range = state->color_range;
++		const u32 *ccm;
++
++		if (color_encoding >= DRM_COLOR_ENCODING_MAX)
++			color_encoding = DRM_COLOR_YCBCR_BT601;
++		if (color_range >= DRM_COLOR_RANGE_MAX)
++			color_range = DRM_COLOR_YCBCR_LIMITED_RANGE;
++
++		ccm = colorspace_coeffs[color_range][color_encoding];
++
++		vc4_dlist_write(vc4_state, ccm[0]);
++		vc4_dlist_write(vc4_state, ccm[1]);
++		vc4_dlist_write(vc4_state, ccm[2]);
+ 	}
+ 
+ 	vc4_state->lbm_offset = 0;
+@@ -1423,6 +1481,14 @@ struct drm_plane *vc4_plane_init(struct
+ 					   DRM_MODE_REFLECT_X |
+ 					   DRM_MODE_REFLECT_Y);
+ 
++	drm_plane_create_color_properties(plane,
++					  BIT(DRM_COLOR_YCBCR_BT601) |
++					  BIT(DRM_COLOR_YCBCR_BT709),
++					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
++					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
++					  DRM_COLOR_YCBCR_BT709,
++					  DRM_COLOR_YCBCR_LIMITED_RANGE);
++
+ 	return plane;
+ }
+ 
+--- a/drivers/gpu/drm/vc4/vc4_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_regs.h
+@@ -976,6 +976,7 @@ enum hvs_pixel_format {
+ #define SCALER_CSC0_ITR_R_601_5			0x00f00000
+ #define SCALER_CSC0_ITR_R_709_3			0x00f00000
+ #define SCALER_CSC0_JPEG_JFIF			0x00000000
++#define SCALER_CSC0_ITR_R_709_3_FR		0x00000000
+ 
+ /* S2.8 contribution of Cb to Green */
+ #define SCALER_CSC1_COEF_CB_GRN_MASK		VC4_MASK(31, 22)
+@@ -992,6 +993,7 @@ enum hvs_pixel_format {
+ #define SCALER_CSC1_ITR_R_601_5			0xe73304a8
+ #define SCALER_CSC1_ITR_R_709_3			0xf2b784a8
+ #define SCALER_CSC1_JPEG_JFIF			0xea34a400
++#define SCALER_CSC1_ITR_R_709_3_FR		0xe23d0400
+ 
+ /* S2.8 contribution of Cb to Red */
+ #define SCALER_CSC2_COEF_CB_RED_MASK		VC4_MASK(29, 20)
+@@ -1005,6 +1007,7 @@ enum hvs_pixel_format {
+ #define SCALER_CSC2_ITR_R_601_5			0x00066204
+ #define SCALER_CSC2_ITR_R_709_3			0x00072a1c
+ #define SCALER_CSC2_JPEG_JFIF			0x000599c5
++#define SCALER_CSC2_ITR_R_709_3_FR		0x00064ddb
+ 
+ #define SCALER_TPZ0_VERT_RECALC			BIT(31)
+ #define SCALER_TPZ0_SCALE_MASK			VC4_MASK(28, 8)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0321-drm-vc4-Add-firmware-kms-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0321-drm-vc4-Add-firmware-kms-mode.patch
new file mode 100644
index 0000000000..751c75fc32
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0321-drm-vc4-Add-firmware-kms-mode.patch
@@ -0,0 +1,2364 @@
+From 0f304a905699ed05a418ac1cd98bcec6f2220a89 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 7 Sep 2020 17:32:27 +0100
+Subject: [PATCH] drm/vc4: Add firmware-kms mode
+
+This is a squash of all firmware-kms related patches from previous
+branches, up to and including
+"drm/vc4: Set the possible crtcs mask correctly for planes with FKMS"
+plus a couple of minor fixups for the 5.9 branch.
+Please refer to earlier branches for full history.
+
+This patch includes work by Eric Anholt, James Hughes, Phil Elwell,
+Dave Stevenson, Dom Cobley, and Jonathon Bell.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+
+drm/vc4: Fixup firmware-kms after "drm/atomic: Pass the full state to CRTC atomic enable/disable"
+
+Prototype for those calls changed, so amend fkms (which isn't
+upstream) to match.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/Makefile               |    1 +
+ drivers/gpu/drm/vc4/vc4_drv.c              |   15 +-
+ drivers/gpu/drm/vc4/vc4_drv.h              |    8 +
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c     | 1958 ++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_kms.c              |   27 +-
+ drivers/gpu/drm/vc4/vc_image_types.h       |  175 ++
+ include/soc/bcm2835/raspberrypi-firmware.h |    6 +
+ 7 files changed, 2177 insertions(+), 13 deletions(-)
+ create mode 100644 drivers/gpu/drm/vc4/vc4_firmware_kms.c
+ create mode 100644 drivers/gpu/drm/vc4/vc_image_types.h
+
+--- a/drivers/gpu/drm/vc4/Makefile
++++ b/drivers/gpu/drm/vc4/Makefile
+@@ -9,6 +9,7 @@ vc4-y := \
+ 	vc4_dpi.o \
+ 	vc4_dsi.o \
+ 	vc4_fence.o \
++	vc4_firmware_kms.o \
+ 	vc4_kms.o \
+ 	vc4_gem.o \
+ 	vc4_hdmi.o \
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -307,9 +307,11 @@ static int vc4_drm_bind(struct device *d
+ 	if (ret)
+ 		return ret;
+ 
+-	ret = vc4_plane_create_additional_planes(drm);
+-	if (ret)
+-		goto unbind_all;
++	if (!vc4->firmware_kms) {
++		ret = vc4_plane_create_additional_planes(drm);
++		if (ret)
++			goto unbind_all;
++	}
+ 
+ 	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
+ 
+@@ -317,8 +319,10 @@ static int vc4_drm_bind(struct device *d
+ 	if (ret < 0)
+ 		goto unbind_all;
+ 
+-	drm_for_each_crtc(crtc, drm)
+-		vc4_crtc_disable_at_boot(crtc);
++	if (!vc4->firmware_kms) {
++		drm_for_each_crtc(crtc, drm)
++			vc4_crtc_disable_at_boot(crtc);
++	}
+ 
+ 	ret = drm_dev_register(drm, 0);
+ 	if (ret < 0)
+@@ -356,6 +360,7 @@ static struct platform_driver *const com
+ 	&vc4_hvs_driver,
+ 	&vc4_txp_driver,
+ 	&vc4_crtc_driver,
++	&vc4_firmware_kms_driver,
+ 	&vc4_v3d_driver,
+ };
+ 
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -74,12 +74,17 @@ struct vc4_perfmon {
+ struct vc4_dev {
+ 	struct drm_device base;
+ 
++	bool firmware_kms;
++	struct rpi_firmware *firmware;
++
++	struct vc4_hdmi *hdmi;
+ 	struct vc4_hvs *hvs;
+ 	struct vc4_v3d *v3d;
+ 	struct vc4_dpi *dpi;
+ 	struct vc4_dsi *dsi1;
+ 	struct vc4_vec *vec;
+ 	struct vc4_txp *txp;
++	struct vc4_fkms *fkms;
+ 
+ 	struct vc4_hang_state *hang_state;
+ 
+@@ -877,6 +882,9 @@ extern struct platform_driver vc4_dsi_dr
+ /* vc4_fence.c */
+ extern const struct dma_fence_ops vc4_fence_ops;
+ 
++/* vc4_firmware_kms.c */
++extern struct platform_driver vc4_firmware_kms_driver;
++
+ /* vc4_gem.c */
+ int vc4_gem_init(struct drm_device *dev);
+ int vc4_submit_cl_ioctl(struct drm_device *dev, void *data,
+--- /dev/null
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -0,0 +1,1958 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * Copyright (C) 2016 Broadcom
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++/**
++ * DOC: VC4 firmware KMS module.
++ *
++ * As a hack to get us from the current closed source driver world
++ * toward a totally open stack, implement KMS on top of the Raspberry
++ * Pi's firmware display stack.
++ */
++
++#include <drm/drm_atomic_helper.h>
++#include <drm/drm_crtc_helper.h>
++#include <drm/drm_drv.h>
++#include <drm/drm_fb_cma_helper.h>
++#include <drm/drm_fourcc.h>
++#include <drm/drm_gem_framebuffer_helper.h>
++#include <drm/drm_plane_helper.h>
++#include <drm/drm_probe_helper.h>
++#include <drm/drm_vblank.h>
++
++#include <linux/component.h>
++#include <linux/clk.h>
++#include <linux/debugfs.h>
++#include <linux/module.h>
++
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#include "vc4_drv.h"
++#include "vc4_regs.h"
++#include "vc_image_types.h"
++
++int fkms_max_refresh_rate = 85;
++module_param(fkms_max_refresh_rate, int, 0644);
++MODULE_PARM_DESC(fkms_max_refresh_rate, "Max supported refresh rate");
++
++struct get_display_cfg {
++	u32  max_pixel_clock[2];  //Max pixel clock for each display
++};
++
++struct vc4_fkms {
++	struct get_display_cfg cfg;
++	bool bcm2711;
++};
++
++#define PLANES_PER_CRTC		8
++
++struct set_plane {
++	u8 display;
++	u8 plane_id;
++	u8 vc_image_type;
++	s8 layer;
++
++	u16 width;
++	u16 height;
++
++	u16 pitch;
++	u16 vpitch;
++
++	u32 src_x;	/* 16p16 */
++	u32 src_y;	/* 16p16 */
++
++	u32 src_w;	/* 16p16 */
++	u32 src_h;	/* 16p16 */
++
++	s16 dst_x;
++	s16 dst_y;
++
++	u16 dst_w;
++	u16 dst_h;
++
++	u8 alpha;
++	u8 num_planes;
++	u8 is_vu;
++	u8 color_encoding;
++
++	u32 planes[4];  /* DMA address of each plane */
++
++	u32 transform;
++};
++
++/* Values for the transform field */
++#define TRANSFORM_NO_ROTATE	0
++#define TRANSFORM_ROTATE_180	BIT(1)
++#define TRANSFORM_FLIP_HRIZ	BIT(16)
++#define TRANSFORM_FLIP_VERT	BIT(17)
++
++struct mailbox_set_plane {
++	struct rpi_firmware_property_tag_header tag;
++	struct set_plane plane;
++};
++
++struct mailbox_blank_display {
++	struct rpi_firmware_property_tag_header tag1;
++	u32 display;
++	struct rpi_firmware_property_tag_header tag2;
++	u32 blank;
++};
++
++struct mailbox_display_pwr {
++	struct rpi_firmware_property_tag_header tag1;
++	u32 display;
++	u32 state;
++};
++
++struct mailbox_get_edid {
++	struct rpi_firmware_property_tag_header tag1;
++	u32 block;
++	u32 display_number;
++	u8 edid[128];
++};
++
++struct set_timings {
++	u8 display;
++	u8 padding;
++	u16 video_id_code;
++
++	u32 clock;		/* in kHz */
++
++	u16 hdisplay;
++	u16 hsync_start;
++
++	u16 hsync_end;
++	u16 htotal;
++
++	u16 hskew;
++	u16 vdisplay;
++
++	u16 vsync_start;
++	u16 vsync_end;
++
++	u16 vtotal;
++	u16 vscan;
++
++	u16 vrefresh;
++	u16 padding2;
++
++	u32 flags;
++#define  TIMINGS_FLAGS_H_SYNC_POS	BIT(0)
++#define  TIMINGS_FLAGS_H_SYNC_NEG	0
++#define  TIMINGS_FLAGS_V_SYNC_POS	BIT(1)
++#define  TIMINGS_FLAGS_V_SYNC_NEG	0
++#define  TIMINGS_FLAGS_INTERLACE	BIT(2)
++
++#define TIMINGS_FLAGS_ASPECT_MASK	GENMASK(7, 4)
++#define TIMINGS_FLAGS_ASPECT_NONE	(0 << 4)
++#define TIMINGS_FLAGS_ASPECT_4_3	(1 << 4)
++#define TIMINGS_FLAGS_ASPECT_16_9	(2 << 4)
++#define TIMINGS_FLAGS_ASPECT_64_27	(3 << 4)
++#define TIMINGS_FLAGS_ASPECT_256_135	(4 << 4)
++
++/* Limited range RGB flag. Not set corresponds to full range. */
++#define TIMINGS_FLAGS_RGB_LIMITED	BIT(8)
++/* DVI monitor, therefore disable infoframes. Not set corresponds to HDMI. */
++#define TIMINGS_FLAGS_DVI		BIT(9)
++/* Double clock */
++#define TIMINGS_FLAGS_DBL_CLK		BIT(10)
++};
++
++struct mailbox_set_mode {
++	struct rpi_firmware_property_tag_header tag1;
++	struct set_timings timings;
++};
++
++static const struct vc_image_format {
++	u32 drm;	/* DRM_FORMAT_* */
++	u32 vc_image;	/* VC_IMAGE_* */
++	u32 is_vu;
++} vc_image_formats[] = {
++	{
++		.drm = DRM_FORMAT_XRGB8888,
++		.vc_image = VC_IMAGE_XRGB8888,
++	},
++	{
++		.drm = DRM_FORMAT_ARGB8888,
++		.vc_image = VC_IMAGE_ARGB8888,
++	},
++/*
++ *	FIXME: Need to resolve which DRM format goes to which vc_image format
++ *	for the remaining RGBA and RGBX formats.
++ *	{
++ *		.drm = DRM_FORMAT_ABGR8888,
++ *		.vc_image = VC_IMAGE_RGBA8888,
++ *	},
++ *	{
++ *		.drm = DRM_FORMAT_XBGR8888,
++ *		.vc_image = VC_IMAGE_RGBA8888,
++ *	},
++ */
++	{
++		.drm = DRM_FORMAT_RGB565,
++		.vc_image = VC_IMAGE_RGB565,
++	},
++	{
++		.drm = DRM_FORMAT_RGB888,
++		.vc_image = VC_IMAGE_BGR888,
++	},
++	{
++		.drm = DRM_FORMAT_BGR888,
++		.vc_image = VC_IMAGE_RGB888,
++	},
++	{
++		.drm = DRM_FORMAT_YUV422,
++		.vc_image = VC_IMAGE_YUV422PLANAR,
++	},
++	{
++		.drm = DRM_FORMAT_YUV420,
++		.vc_image = VC_IMAGE_YUV420,
++	},
++	{
++		.drm = DRM_FORMAT_YVU420,
++		.vc_image = VC_IMAGE_YUV420,
++		.is_vu = 1,
++	},
++	{
++		.drm = DRM_FORMAT_NV12,
++		.vc_image = VC_IMAGE_YUV420SP,
++	},
++	{
++		.drm = DRM_FORMAT_NV21,
++		.vc_image = VC_IMAGE_YUV420SP,
++		.is_vu = 1,
++	},
++	{
++		.drm = DRM_FORMAT_P030,
++		.vc_image = VC_IMAGE_YUV10COL,
++	},
++};
++
++static const struct vc_image_format *vc4_get_vc_image_fmt(u32 drm_format)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++) {
++		if (vc_image_formats[i].drm == drm_format)
++			return &vc_image_formats[i];
++	}
++
++	return NULL;
++}
++
++/* The firmware delivers a vblank interrupt to us through the SMI
++ * hardware, which has only this one register.
++ */
++#define SMICS 0x0
++#define SMIDSW0 0x14
++#define SMIDSW1 0x1C
++#define SMICS_INTERRUPTS (BIT(9) | BIT(10) | BIT(11))
++
++/* Flag to denote that the firmware is giving multiple display callbacks */
++#define SMI_NEW 0xabcd0000
++
++#define vc4_crtc vc4_kms_crtc
++#define to_vc4_crtc to_vc4_kms_crtc
++struct vc4_crtc {
++	struct drm_crtc base;
++	struct drm_encoder *encoder;
++	struct drm_connector *connector;
++	void __iomem *regs;
++
++	struct drm_pending_vblank_event *event;
++	bool vblank_enabled;
++	u32 display_number;
++	u32 display_type;
++};
++
++static inline struct vc4_crtc *to_vc4_crtc(struct drm_crtc *crtc)
++{
++	return container_of(crtc, struct vc4_crtc, base);
++}
++
++struct vc4_fkms_encoder {
++	struct drm_encoder base;
++	bool hdmi_monitor;
++	bool rgb_range_selectable;
++	int display_num;
++};
++
++static inline struct vc4_fkms_encoder *
++to_vc4_fkms_encoder(struct drm_encoder *encoder)
++{
++	return container_of(encoder, struct vc4_fkms_encoder, base);
++}
++
++/* "Broadcast RGB" property.
++ * Allows overriding of HDMI full or limited range RGB
++ */
++#define VC4_BROADCAST_RGB_AUTO 0
++#define VC4_BROADCAST_RGB_FULL 1
++#define VC4_BROADCAST_RGB_LIMITED 2
++
++/* VC4 FKMS connector KMS struct */
++struct vc4_fkms_connector {
++	struct drm_connector base;
++
++	/* Since the connector is attached to just the one encoder,
++	 * this is the reference to it so we can do the best_encoder()
++	 * hook.
++	 */
++	struct drm_encoder *encoder;
++	struct vc4_dev *vc4_dev;
++	u32 display_number;
++	u32 display_type;
++
++	struct drm_property *broadcast_rgb_property;
++};
++
++static inline struct vc4_fkms_connector *
++to_vc4_fkms_connector(struct drm_connector *connector)
++{
++	return container_of(connector, struct vc4_fkms_connector, base);
++}
++
++/* VC4 FKMS connector state */
++struct vc4_fkms_connector_state {
++	struct drm_connector_state base;
++
++	int broadcast_rgb;
++};
++
++#define to_vc4_fkms_connector_state(x) \
++			container_of(x, struct vc4_fkms_connector_state, base)
++
++static u32 vc4_get_display_type(u32 display_number)
++{
++	const u32 display_types[] = {
++		/* The firmware display (DispmanX) IDs map to specific types in
++		 * a fixed manner.
++		 */
++		DRM_MODE_ENCODER_DSI,	/* MAIN_LCD - DSI or DPI */
++		DRM_MODE_ENCODER_DSI,	/* AUX_LCD */
++		DRM_MODE_ENCODER_TMDS,	/* HDMI0 */
++		DRM_MODE_ENCODER_TVDAC,	/* VEC */
++		DRM_MODE_ENCODER_NONE,	/* FORCE_LCD */
++		DRM_MODE_ENCODER_NONE,	/* FORCE_TV */
++		DRM_MODE_ENCODER_NONE,	/* FORCE_OTHER */
++		DRM_MODE_ENCODER_TMDS,	/* HDMI1 */
++		DRM_MODE_ENCODER_NONE,	/* FORCE_TV2 */
++	};
++	return display_number > ARRAY_SIZE(display_types) - 1 ?
++			DRM_MODE_ENCODER_NONE : display_types[display_number];
++}
++
++/* Firmware's structure for making an FB mbox call. */
++struct fbinfo_s {
++	u32 xres, yres, xres_virtual, yres_virtual;
++	u32 pitch, bpp;
++	u32 xoffset, yoffset;
++	u32 base;
++	u32 screen_size;
++	u16 cmap[256];
++};
++
++struct vc4_fkms_plane {
++	struct drm_plane base;
++	struct fbinfo_s *fbinfo;
++	dma_addr_t fbinfo_bus_addr;
++	u32 pitch;
++	struct mailbox_set_plane mb;
++};
++
++static inline struct vc4_fkms_plane *to_vc4_fkms_plane(struct drm_plane *plane)
++{
++	return (struct vc4_fkms_plane *)plane;
++}
++
++static int vc4_plane_set_blank(struct drm_plane *plane, bool blank)
++{
++	struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
++	struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
++	struct mailbox_set_plane blank_mb = {
++		.tag = { RPI_FIRMWARE_SET_PLANE, sizeof(struct set_plane), 0 },
++		.plane = {
++			.display = vc4_plane->mb.plane.display,
++			.plane_id = vc4_plane->mb.plane.plane_id,
++		}
++	};
++	static const char * const plane_types[] = {
++							"overlay",
++							"primary",
++							"cursor"
++						  };
++	int ret;
++
++	DRM_DEBUG_ATOMIC("[PLANE:%d:%s] %s plane %s",
++			 plane->base.id, plane->name, plane_types[plane->type],
++			 blank ? "blank" : "unblank");
++
++	if (blank)
++		ret = rpi_firmware_property_list(vc4->firmware, &blank_mb,
++						 sizeof(blank_mb));
++	else
++		ret = rpi_firmware_property_list(vc4->firmware, &vc4_plane->mb,
++						 sizeof(vc4_plane->mb));
++
++	WARN_ONCE(ret, "%s: firmware call failed. Please update your firmware",
++		  __func__);
++	return ret;
++}
++
++static void vc4_fkms_crtc_get_margins(struct drm_crtc_state *state,
++				      unsigned int *left, unsigned int *right,
++				      unsigned int *top, unsigned int *bottom)
++{
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_connector_state *conn_state;
++	struct drm_connector *conn;
++	int i;
++
++	*left = vc4_state->margins.left;
++	*right = vc4_state->margins.right;
++	*top = vc4_state->margins.top;
++	*bottom = vc4_state->margins.bottom;
++
++	/* We have to interate over all new connector states because
++	 * vc4_fkms_crtc_get_margins() might be called before
++	 * vc4_fkms_crtc_atomic_check() which means margins info in
++	 * vc4_crtc_state might be outdated.
++	 */
++	for_each_new_connector_in_state(state->state, conn, conn_state, i) {
++		if (conn_state->crtc != state->crtc)
++			continue;
++
++		*left = conn_state->tv.margins.left;
++		*right = conn_state->tv.margins.right;
++		*top = conn_state->tv.margins.top;
++		*bottom = conn_state->tv.margins.bottom;
++		break;
++	}
++}
++
++static int vc4_fkms_margins_adj(struct drm_plane_state *pstate,
++				struct set_plane *plane)
++{
++	unsigned int left, right, top, bottom;
++	int adjhdisplay, adjvdisplay;
++	struct drm_crtc_state *crtc_state;
++
++	crtc_state = drm_atomic_get_new_crtc_state(pstate->state,
++						   pstate->crtc);
++
++	vc4_fkms_crtc_get_margins(crtc_state, &left, &right, &top, &bottom);
++
++	if (!left && !right && !top && !bottom)
++		return 0;
++
++	if (left + right >= crtc_state->mode.hdisplay ||
++	    top + bottom >= crtc_state->mode.vdisplay)
++		return -EINVAL;
++
++	adjhdisplay = crtc_state->mode.hdisplay - (left + right);
++	plane->dst_x = DIV_ROUND_CLOSEST(plane->dst_x * adjhdisplay,
++					 (int)crtc_state->mode.hdisplay);
++	plane->dst_x += left;
++	if (plane->dst_x > (int)(crtc_state->mode.hdisplay - left))
++		plane->dst_x = crtc_state->mode.hdisplay - left;
++
++	adjvdisplay = crtc_state->mode.vdisplay - (top + bottom);
++	plane->dst_y = DIV_ROUND_CLOSEST(plane->dst_y * adjvdisplay,
++					 (int)crtc_state->mode.vdisplay);
++	plane->dst_y += top;
++	if (plane->dst_y > (int)(crtc_state->mode.vdisplay - top))
++		plane->dst_y = crtc_state->mode.vdisplay - top;
++
++	plane->dst_w = DIV_ROUND_CLOSEST(plane->dst_w * adjhdisplay,
++					 crtc_state->mode.hdisplay);
++	plane->dst_h = DIV_ROUND_CLOSEST(plane->dst_h * adjvdisplay,
++					 crtc_state->mode.vdisplay);
++
++	if (!plane->dst_w || !plane->dst_h)
++		return -EINVAL;
++
++	return 0;
++}
++
++static void vc4_plane_atomic_update(struct drm_plane *plane,
++				    struct drm_plane_state *old_state)
++{
++	struct drm_plane_state *state = plane->state;
++
++	/*
++	 * Do NOT set now, as we haven't checked if the crtc is active or not.
++	 * Set from vc4_plane_set_blank instead.
++	 *
++	 * If the CRTC is on (or going to be on) and we're enabled,
++	 * then unblank.  Otherwise, stay blank until CRTC enable.
++	 */
++	if (state->crtc->state->active)
++		vc4_plane_set_blank(plane, false);
++}
++
++static void vc4_plane_atomic_disable(struct drm_plane *plane,
++				     struct drm_plane_state *old_state)
++{
++	struct drm_plane_state *state = plane->state;
++	struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
++
++	DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane disable %dx%d@%d +%d,%d\n",
++			 plane->base.id, plane->name,
++			 state->crtc_w,
++			 state->crtc_h,
++			 vc4_plane->mb.plane.vc_image_type,
++			 state->crtc_x,
++			 state->crtc_y);
++	vc4_plane_set_blank(plane, true);
++}
++
++static bool plane_enabled(struct drm_plane_state *state)
++{
++	return state->fb && state->crtc;
++}
++
++static int vc4_plane_to_mb(struct drm_plane *plane,
++			   struct mailbox_set_plane *mb,
++			   struct drm_plane_state *state)
++{
++	struct drm_framebuffer *fb = state->fb;
++	struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
++	const struct drm_format_info *drm_fmt = fb->format;
++	const struct vc_image_format *vc_fmt =
++					vc4_get_vc_image_fmt(drm_fmt->format);
++	int num_planes = fb->format->num_planes;
++	unsigned int rotation;
++
++	mb->plane.vc_image_type = vc_fmt->vc_image;
++	mb->plane.width = fb->width;
++	mb->plane.height = fb->height;
++	mb->plane.pitch = fb->pitches[0];
++	mb->plane.src_w = state->src_w;
++	mb->plane.src_h = state->src_h;
++	mb->plane.src_x = state->src_x;
++	mb->plane.src_y = state->src_y;
++	mb->plane.dst_w = state->crtc_w;
++	mb->plane.dst_h = state->crtc_h;
++	mb->plane.dst_x = state->crtc_x;
++	mb->plane.dst_y = state->crtc_y;
++	mb->plane.alpha = state->alpha >> 8;
++	mb->plane.layer = state->normalized_zpos ?
++					state->normalized_zpos : -127;
++	mb->plane.num_planes = num_planes;
++	mb->plane.is_vu = vc_fmt->is_vu;
++	mb->plane.planes[0] = bo->paddr + fb->offsets[0];
++
++	rotation = drm_rotation_simplify(state->rotation,
++					 DRM_MODE_ROTATE_0 |
++					 DRM_MODE_REFLECT_X |
++					 DRM_MODE_REFLECT_Y);
++
++	mb->plane.transform = TRANSFORM_NO_ROTATE;
++	if (rotation & DRM_MODE_REFLECT_X)
++		mb->plane.transform |= TRANSFORM_FLIP_HRIZ;
++	if (rotation & DRM_MODE_REFLECT_Y)
++		mb->plane.transform |= TRANSFORM_FLIP_VERT;
++
++	vc4_fkms_margins_adj(state, &mb->plane);
++
++	if (num_planes > 1) {
++		/* Assume this must be YUV */
++		/* Makes assumptions on the stride for the chroma planes as we
++		 * can't easily plumb in non-standard pitches.
++		 */
++		mb->plane.planes[1] = bo->paddr + fb->offsets[1];
++		if (num_planes > 2)
++			mb->plane.planes[2] = bo->paddr + fb->offsets[2];
++		else
++			mb->plane.planes[2] = 0;
++
++		/* Special case the YUV420 with U and V as line interleaved
++		 * planes as we have special handling for that case.
++		 */
++		if (num_planes == 3 &&
++		    (fb->offsets[2] - fb->offsets[1]) == fb->pitches[1])
++			mb->plane.vc_image_type = VC_IMAGE_YUV420_S;
++
++		switch (state->color_encoding) {
++		default:
++		case DRM_COLOR_YCBCR_BT601:
++			if (state->color_range == DRM_COLOR_YCBCR_LIMITED_RANGE)
++				mb->plane.color_encoding =
++						VC_IMAGE_YUVINFO_CSC_ITUR_BT601;
++			else
++				mb->plane.color_encoding =
++						VC_IMAGE_YUVINFO_CSC_JPEG_JFIF;
++			break;
++		case DRM_COLOR_YCBCR_BT709:
++			/* Currently no support for a full range BT709 */
++			mb->plane.color_encoding =
++						VC_IMAGE_YUVINFO_CSC_ITUR_BT709;
++			break;
++		case DRM_COLOR_YCBCR_BT2020:
++			/* Currently no support for a full range BT2020 */
++			mb->plane.color_encoding =
++					VC_IMAGE_YUVINFO_CSC_REC_2020;
++			break;
++		}
++	} else {
++		mb->plane.planes[1] = 0;
++		mb->plane.planes[2] = 0;
++	}
++	mb->plane.planes[3] = 0;
++
++	switch (fourcc_mod_broadcom_mod(fb->modifier)) {
++	case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
++		switch (mb->plane.vc_image_type) {
++		case VC_IMAGE_XRGB8888:
++			mb->plane.vc_image_type = VC_IMAGE_TF_RGBX32;
++			break;
++		case VC_IMAGE_ARGB8888:
++			mb->plane.vc_image_type = VC_IMAGE_TF_RGBA32;
++			break;
++		case VC_IMAGE_RGB565:
++			mb->plane.vc_image_type = VC_IMAGE_TF_RGB565;
++			break;
++		}
++		break;
++	case DRM_FORMAT_MOD_BROADCOM_SAND128:
++		switch (mb->plane.vc_image_type) {
++		case VC_IMAGE_YUV420SP:
++			mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
++			break;
++		/* VC_IMAGE_YUV10COL could be included in here, but it is only
++		 * valid as a SAND128 format, so the table at the top will have
++		 * already set the correct format.
++		 */
++		}
++		/* Note that the column pitch is passed across in lines, not
++		 * bytes.
++		 */
++		mb->plane.pitch = fourcc_mod_broadcom_param(fb->modifier);
++		break;
++	}
++
++	DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane update %dx%d@%d +dst(%d,%d, %d,%d) +src(%d,%d, %d,%d) 0x%08x/%08x/%08x/%d, alpha %u zpos %u\n",
++			 plane->base.id, plane->name,
++			 mb->plane.width,
++			 mb->plane.height,
++			 mb->plane.vc_image_type,
++			 state->crtc_x,
++			 state->crtc_y,
++			 state->crtc_w,
++			 state->crtc_h,
++			 mb->plane.src_x,
++			 mb->plane.src_y,
++			 mb->plane.src_w,
++			 mb->plane.src_h,
++			 mb->plane.planes[0],
++			 mb->plane.planes[1],
++			 mb->plane.planes[2],
++			 fb->pitches[0],
++			 state->alpha,
++			 state->normalized_zpos);
++
++	return 0;
++}
++
++static int vc4_plane_atomic_check(struct drm_plane *plane,
++				  struct drm_plane_state *state)
++{
++	struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
++
++	if (!plane_enabled(state))
++		return 0;
++
++	return vc4_plane_to_mb(plane, &vc4_plane->mb, state);
++}
++
++/* Called during init to allocate the plane's atomic state. */
++static void vc4_plane_reset(struct drm_plane *plane)
++{
++	struct vc4_plane_state *vc4_state;
++
++	WARN_ON(plane->state);
++
++	vc4_state = kzalloc(sizeof(*vc4_state), GFP_KERNEL);
++	if (!vc4_state)
++		return;
++
++	__drm_atomic_helper_plane_reset(plane, &vc4_state->base);
++}
++
++static void vc4_plane_destroy(struct drm_plane *plane)
++{
++	drm_plane_cleanup(plane);
++}
++
++static bool vc4_fkms_format_mod_supported(struct drm_plane *plane,
++					  uint32_t format,
++					  uint64_t modifier)
++{
++	/* Support T_TILING for RGB formats only. */
++	switch (format) {
++	case DRM_FORMAT_XRGB8888:
++	case DRM_FORMAT_ARGB8888:
++	case DRM_FORMAT_RGB565:
++		switch (modifier) {
++		case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
++		case DRM_FORMAT_MOD_LINEAR:
++			return true;
++		default:
++			return false;
++		}
++	case DRM_FORMAT_NV12:
++		switch (fourcc_mod_broadcom_mod(modifier)) {
++		case DRM_FORMAT_MOD_LINEAR:
++		case DRM_FORMAT_MOD_BROADCOM_SAND128:
++			return true;
++		default:
++			return false;
++		}
++	case DRM_FORMAT_P030:
++		switch (fourcc_mod_broadcom_mod(modifier)) {
++		case DRM_FORMAT_MOD_BROADCOM_SAND128:
++			return true;
++		default:
++			return false;
++		}
++	case DRM_FORMAT_NV21:
++	case DRM_FORMAT_RGB888:
++	case DRM_FORMAT_BGR888:
++	case DRM_FORMAT_YUV422:
++	case DRM_FORMAT_YUV420:
++	case DRM_FORMAT_YVU420:
++	default:
++		return (modifier == DRM_FORMAT_MOD_LINEAR);
++	}
++}
++
++static struct drm_plane_state *vc4_plane_duplicate_state(struct drm_plane *plane)
++{
++	struct vc4_plane_state *vc4_state;
++
++	if (WARN_ON(!plane->state))
++		return NULL;
++
++	vc4_state = kzalloc(sizeof(*vc4_state), GFP_KERNEL);
++	if (!vc4_state)
++		return NULL;
++
++	__drm_atomic_helper_plane_duplicate_state(plane, &vc4_state->base);
++
++	return &vc4_state->base;
++}
++
++static const struct drm_plane_funcs vc4_plane_funcs = {
++	.update_plane = drm_atomic_helper_update_plane,
++	.disable_plane = drm_atomic_helper_disable_plane,
++	.destroy = vc4_plane_destroy,
++	.set_property = NULL,
++	.reset = vc4_plane_reset,
++	.atomic_duplicate_state = vc4_plane_duplicate_state,
++	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
++	.format_mod_supported = vc4_fkms_format_mod_supported,
++};
++
++static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = {
++	.prepare_fb = drm_gem_fb_prepare_fb,
++	.cleanup_fb = NULL,
++	.atomic_check = vc4_plane_atomic_check,
++	.atomic_update = vc4_plane_atomic_update,
++	.atomic_disable = vc4_plane_atomic_disable,
++};
++
++static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev,
++					     enum drm_plane_type type,
++					     u8 display_num,
++					     u8 plane_id)
++{
++	struct drm_plane *plane = NULL;
++	struct vc4_fkms_plane *vc4_plane;
++	u32 formats[ARRAY_SIZE(vc_image_formats)];
++	unsigned int default_zpos = 0;
++	u32 num_formats = 0;
++	int ret = 0;
++	static const uint64_t modifiers[] = {
++		DRM_FORMAT_MOD_LINEAR,
++		/* VC4_T_TILED should come after linear, because we
++		 * would prefer to scan out linear (less bus traffic).
++		 */
++		DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
++		DRM_FORMAT_MOD_BROADCOM_SAND128,
++		DRM_FORMAT_MOD_INVALID,
++	};
++	int i;
++
++	vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane),
++				 GFP_KERNEL);
++	if (!vc4_plane) {
++		ret = -ENOMEM;
++		goto fail;
++	}
++
++	for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++)
++		formats[num_formats++] = vc_image_formats[i].drm;
++
++	plane = &vc4_plane->base;
++	ret = drm_universal_plane_init(dev, plane, 0,
++				       &vc4_plane_funcs,
++				       formats, num_formats, modifiers,
++				       type, NULL);
++
++	/* FIXME: Do we need to be checking return values from all these calls?
++	 */
++	drm_plane_helper_add(plane, &vc4_plane_helper_funcs);
++
++	drm_plane_create_alpha_property(plane);
++	drm_plane_create_rotation_property(plane, DRM_MODE_ROTATE_0,
++					   DRM_MODE_ROTATE_0 |
++					   DRM_MODE_ROTATE_180 |
++					   DRM_MODE_REFLECT_X |
++					   DRM_MODE_REFLECT_Y);
++	drm_plane_create_color_properties(plane,
++					  BIT(DRM_COLOR_YCBCR_BT601) |
++					  BIT(DRM_COLOR_YCBCR_BT709) |
++					  BIT(DRM_COLOR_YCBCR_BT2020),
++					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
++					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
++					  DRM_COLOR_YCBCR_BT709,
++					  DRM_COLOR_YCBCR_LIMITED_RANGE);
++
++	/*
++	 * Default frame buffer setup is with FB on -127, and raspistill etc
++	 * tend to drop overlays on layer 2. Cursor plane was on layer +127.
++	 *
++	 * For F-KMS the mailbox call allows for a s8.
++	 * Remap zpos 0 to -127 for the background layer, but leave all the
++	 * other layers as requested by KMS.
++	 */
++	switch (type) {
++	default:
++	case DRM_PLANE_TYPE_PRIMARY:
++		default_zpos = 0;
++		break;
++	case DRM_PLANE_TYPE_OVERLAY:
++		default_zpos = 1;
++		break;
++	case DRM_PLANE_TYPE_CURSOR:
++		default_zpos = 2;
++		break;
++	}
++	drm_plane_create_zpos_property(plane, default_zpos, 0, 127);
++
++	/* Prepare the static elements of the mailbox structure */
++	vc4_plane->mb.tag.tag = RPI_FIRMWARE_SET_PLANE;
++	vc4_plane->mb.tag.buf_size = sizeof(struct set_plane);
++	vc4_plane->mb.tag.req_resp_size = 0;
++	vc4_plane->mb.plane.display = display_num;
++	vc4_plane->mb.plane.plane_id = plane_id;
++	vc4_plane->mb.plane.layer = default_zpos ? default_zpos : -127;
++
++	return plane;
++fail:
++	if (plane)
++		vc4_plane_destroy(plane);
++
++	return ERR_PTR(ret);
++}
++
++static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
++{
++	struct drm_device *dev = crtc->dev;
++	struct vc4_dev *vc4 = to_vc4_dev(dev);
++	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++	struct drm_display_mode *mode = &crtc->state->adjusted_mode;
++	struct vc4_fkms_encoder *vc4_encoder =
++					to_vc4_fkms_encoder(vc4_crtc->encoder);
++	struct mailbox_set_mode mb = {
++		.tag1 = { RPI_FIRMWARE_SET_TIMING,
++			  sizeof(struct set_timings), 0},
++	};
++	union hdmi_infoframe frame;
++	int ret;
++
++	ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, vc4_crtc->connector, mode);
++	if (ret < 0) {
++		DRM_ERROR("couldn't fill AVI infoframe\n");
++		return;
++	}
++
++	DRM_DEBUG_KMS("Setting mode for display num %u mode name %s, clk %d, h(disp %d, start %d, end %d, total %d, skew %d) v(disp %d, start %d, end %d, total %d, scan %d), vrefresh %d, par %u, flags 0x%04x\n",
++		      vc4_crtc->display_number, mode->name, mode->clock,
++		      mode->hdisplay, mode->hsync_start, mode->hsync_end,
++		      mode->htotal, mode->hskew, mode->vdisplay,
++		      mode->vsync_start, mode->vsync_end, mode->vtotal,
++		      mode->vscan, drm_mode_vrefresh(mode),
++		      mode->picture_aspect_ratio, mode->flags);
++	mb.timings.display = vc4_crtc->display_number;
++
++	mb.timings.clock = mode->clock;
++	mb.timings.hdisplay = mode->hdisplay;
++	mb.timings.hsync_start = mode->hsync_start;
++	mb.timings.hsync_end = mode->hsync_end;
++	mb.timings.htotal = mode->htotal;
++	mb.timings.hskew = mode->hskew;
++	mb.timings.vdisplay = mode->vdisplay;
++	mb.timings.vsync_start = mode->vsync_start;
++	mb.timings.vsync_end = mode->vsync_end;
++	mb.timings.vtotal = mode->vtotal;
++	mb.timings.vscan = mode->vscan;
++	mb.timings.vrefresh = drm_mode_vrefresh(mode);
++	mb.timings.flags = 0;
++	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
++		mb.timings.flags |= TIMINGS_FLAGS_H_SYNC_POS;
++	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
++		mb.timings.flags |= TIMINGS_FLAGS_V_SYNC_POS;
++
++	switch (frame.avi.picture_aspect) {
++	default:
++	case HDMI_PICTURE_ASPECT_NONE:
++		mb.timings.flags |= TIMINGS_FLAGS_ASPECT_NONE;
++		break;
++	case HDMI_PICTURE_ASPECT_4_3:
++		mb.timings.flags |= TIMINGS_FLAGS_ASPECT_4_3;
++		break;
++	case HDMI_PICTURE_ASPECT_16_9:
++		mb.timings.flags |= TIMINGS_FLAGS_ASPECT_16_9;
++		break;
++	case HDMI_PICTURE_ASPECT_64_27:
++		mb.timings.flags |= TIMINGS_FLAGS_ASPECT_64_27;
++		break;
++	case HDMI_PICTURE_ASPECT_256_135:
++		mb.timings.flags |= TIMINGS_FLAGS_ASPECT_256_135;
++		break;
++	}
++
++	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
++		mb.timings.flags |= TIMINGS_FLAGS_INTERLACE;
++	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
++		mb.timings.flags |= TIMINGS_FLAGS_DBL_CLK;
++
++	mb.timings.video_id_code = frame.avi.video_code;
++
++	if (!vc4_encoder->hdmi_monitor) {
++		mb.timings.flags |= TIMINGS_FLAGS_DVI;
++	} else {
++		struct vc4_fkms_connector_state *conn_state =
++			to_vc4_fkms_connector_state(vc4_crtc->connector->state);
++
++		if (conn_state->broadcast_rgb == VC4_BROADCAST_RGB_AUTO) {
++			/* See CEA-861-E - 5.1 Default Encoding Parameters */
++			if (drm_default_rgb_quant_range(mode) ==
++					HDMI_QUANTIZATION_RANGE_LIMITED)
++				mb.timings.flags |= TIMINGS_FLAGS_RGB_LIMITED;
++		} else {
++			if (conn_state->broadcast_rgb ==
++						VC4_BROADCAST_RGB_LIMITED)
++				mb.timings.flags |= TIMINGS_FLAGS_RGB_LIMITED;
++
++			/* If not using the default range, then do not provide
++			 * a VIC as the HDMI spec requires that we do not
++			 * signal the opposite of the defined range in the AVI
++			 * infoframe.
++			 */
++			if (!!(mb.timings.flags & TIMINGS_FLAGS_RGB_LIMITED) !=
++			    (drm_default_rgb_quant_range(mode) ==
++					HDMI_QUANTIZATION_RANGE_LIMITED))
++				mb.timings.video_id_code = 0;
++		}
++	}
++
++	/*
++	 * FIXME: To implement
++	 * switch(mode->flag & DRM_MODE_FLAG_3D_MASK) {
++	 * case DRM_MODE_FLAG_3D_NONE:
++	 * case DRM_MODE_FLAG_3D_FRAME_PACKING:
++	 * case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
++	 * case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
++	 * case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
++	 * case DRM_MODE_FLAG_3D_L_DEPTH:
++	 * case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
++	 * case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
++	 * case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
++	 * }
++	 */
++
++	ret = rpi_firmware_property_list(vc4->firmware, &mb, sizeof(mb));
++}
++
++static void vc4_crtc_disable(struct drm_crtc *crtc,
++			     struct drm_atomic_state *state)
++{
++	struct drm_device *dev = crtc->dev;
++	struct drm_plane *plane;
++
++	DRM_DEBUG_KMS("[CRTC:%d] vblanks off.\n",
++		      crtc->base.id);
++	drm_crtc_vblank_off(crtc);
++
++	/* Always turn the planes off on CRTC disable. In DRM, planes
++	 * are enabled/disabled through the update/disable hooks
++	 * above, and the CRTC enable/disable independently controls
++	 * whether anything scans out at all, but the firmware doesn't
++	 * give us a CRTC-level control for that.
++	 */
++
++	drm_atomic_crtc_for_each_plane(plane, crtc)
++		vc4_plane_atomic_disable(plane, plane->state);
++
++	/*
++	 * Make sure we issue a vblank event after disabling the CRTC if
++	 * someone was waiting it.
++	 */
++	if (crtc->state->event) {
++		unsigned long flags;
++
++		spin_lock_irqsave(&dev->event_lock, flags);
++		drm_crtc_send_vblank_event(crtc, crtc->state->event);
++		crtc->state->event = NULL;
++		spin_unlock_irqrestore(&dev->event_lock, flags);
++	}
++}
++
++static void vc4_crtc_consume_event(struct drm_crtc *crtc)
++{
++	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++	struct drm_device *dev = crtc->dev;
++	unsigned long flags;
++
++	if (!crtc->state->event)
++		return;
++
++	crtc->state->event->pipe = drm_crtc_index(crtc);
++
++	WARN_ON(drm_crtc_vblank_get(crtc) != 0);
++
++	spin_lock_irqsave(&dev->event_lock, flags);
++	vc4_crtc->event = crtc->state->event;
++	crtc->state->event = NULL;
++	spin_unlock_irqrestore(&dev->event_lock, flags);
++}
++
++static void vc4_crtc_enable(struct drm_crtc *crtc,
++			    struct drm_atomic_state *state)
++{
++	struct drm_plane *plane;
++
++	DRM_DEBUG_KMS("[CRTC:%d] vblanks on.\n",
++		      crtc->base.id);
++	drm_crtc_vblank_on(crtc);
++	vc4_crtc_consume_event(crtc);
++
++	/* Unblank the planes (if they're supposed to be displayed). */
++	drm_atomic_crtc_for_each_plane(plane, crtc)
++		if (plane->state->fb)
++			vc4_plane_set_blank(plane, plane->state->visible);
++}
++
++static enum drm_mode_status
++vc4_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
++{
++	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++	struct drm_device *dev = crtc->dev;
++	struct vc4_dev *vc4 = to_vc4_dev(dev);
++	struct vc4_fkms *fkms = vc4->fkms;
++
++	/* Do not allow doublescan modes from user space */
++	if (mode->flags & DRM_MODE_FLAG_DBLSCAN) {
++		DRM_DEBUG_KMS("[CRTC:%d] Doublescan mode rejected.\n",
++			      crtc->base.id);
++		return MODE_NO_DBLESCAN;
++	}
++
++	/* Disable refresh rates > defined threshold (default 85Hz) as limited
++	 * gain from them
++	 */
++	if (drm_mode_vrefresh(mode) > fkms_max_refresh_rate)
++		return MODE_BAD_VVALUE;
++
++	/* Limit the pixel clock based on the HDMI clock limits from the
++	 * firmware
++	 */
++	switch (vc4_crtc->display_number) {
++	case 2:	/* HDMI0 */
++		if (fkms->cfg.max_pixel_clock[0] &&
++		    mode->clock > fkms->cfg.max_pixel_clock[0])
++			return MODE_CLOCK_HIGH;
++		break;
++	case 7:	/* HDMI1 */
++		if (fkms->cfg.max_pixel_clock[1] &&
++		    mode->clock > fkms->cfg.max_pixel_clock[1])
++			return MODE_CLOCK_HIGH;
++		break;
++	}
++
++	/* Pi4 can't generate odd horizontal timings on HDMI, so reject modes
++	 * that would set them.
++	 */
++	if (fkms->bcm2711 &&
++	    (vc4_crtc->display_number == 2 || vc4_crtc->display_number == 7) &&
++	    !(mode->flags & DRM_MODE_FLAG_DBLCLK) &&
++	    ((mode->hdisplay |				/* active */
++	      (mode->hsync_start - mode->hdisplay) |	/* front porch */
++	      (mode->hsync_end - mode->hsync_start) |	/* sync pulse */
++	      (mode->htotal - mode->hsync_end)) & 1))	/* back porch */ {
++		DRM_DEBUG_KMS("[CRTC:%d] Odd timing rejected %u %u %u %u.\n",
++			      crtc->base.id, mode->hdisplay, mode->hsync_start,
++			      mode->hsync_end, mode->htotal);
++		return MODE_H_ILLEGAL;
++	}
++
++	return MODE_OK;
++}
++
++static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
++				 struct drm_crtc_state *state)
++{
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_connector *conn;
++	struct drm_connector_state *conn_state;
++	int i;
++
++	DRM_DEBUG_KMS("[CRTC:%d] crtc_atomic_check.\n", crtc->base.id);
++
++	for_each_new_connector_in_state(state->state, conn, conn_state, i) {
++		if (conn_state->crtc != crtc)
++			continue;
++
++		vc4_state->margins.left = conn_state->tv.margins.left;
++		vc4_state->margins.right = conn_state->tv.margins.right;
++		vc4_state->margins.top = conn_state->tv.margins.top;
++		vc4_state->margins.bottom = conn_state->tv.margins.bottom;
++		break;
++	}
++	return 0;
++}
++
++static void vc4_crtc_atomic_flush(struct drm_crtc *crtc,
++				  struct drm_crtc_state *old_state)
++{
++	DRM_DEBUG_KMS("[CRTC:%d] crtc_atomic_flush.\n",
++		      crtc->base.id);
++	if (crtc->state->active && old_state->active && crtc->state->event)
++		vc4_crtc_consume_event(crtc);
++}
++
++static void vc4_crtc_handle_page_flip(struct vc4_crtc *vc4_crtc)
++{
++	struct drm_crtc *crtc = &vc4_crtc->base;
++	struct drm_device *dev = crtc->dev;
++	unsigned long flags;
++
++	spin_lock_irqsave(&dev->event_lock, flags);
++	if (vc4_crtc->event) {
++		drm_crtc_send_vblank_event(crtc, vc4_crtc->event);
++		vc4_crtc->event = NULL;
++		drm_crtc_vblank_put(crtc);
++	}
++	spin_unlock_irqrestore(&dev->event_lock, flags);
++}
++
++static irqreturn_t vc4_crtc_irq_handler(int irq, void *data)
++{
++	struct vc4_crtc **crtc_list = data;
++	int i;
++	u32 stat = readl(crtc_list[0]->regs + SMICS);
++	irqreturn_t ret = IRQ_NONE;
++	u32 chan;
++
++	if (stat & SMICS_INTERRUPTS) {
++		writel(0, crtc_list[0]->regs + SMICS);
++
++		chan = readl(crtc_list[0]->regs + SMIDSW0);
++
++		if ((chan & 0xFFFF0000) != SMI_NEW) {
++			/* Older firmware. Treat the one interrupt as vblank/
++			 * complete for all crtcs.
++			 */
++			for (i = 0; crtc_list[i]; i++) {
++				if (crtc_list[i]->vblank_enabled)
++					drm_crtc_handle_vblank(&crtc_list[i]->base);
++				vc4_crtc_handle_page_flip(crtc_list[i]);
++			}
++		} else {
++			if (chan & 1) {
++				writel(SMI_NEW, crtc_list[0]->regs + SMIDSW0);
++				if (crtc_list[0]->vblank_enabled)
++					drm_crtc_handle_vblank(&crtc_list[0]->base);
++				vc4_crtc_handle_page_flip(crtc_list[0]);
++			}
++
++			if (crtc_list[1]) {
++				/* Check for the secondary display too */
++				chan = readl(crtc_list[0]->regs + SMIDSW1);
++
++				if (chan & 1) {
++					writel(SMI_NEW, crtc_list[0]->regs + SMIDSW1);
++
++					if (crtc_list[1]->vblank_enabled)
++						drm_crtc_handle_vblank(&crtc_list[1]->base);
++					vc4_crtc_handle_page_flip(crtc_list[1]);
++				}
++			}
++		}
++
++		ret = IRQ_HANDLED;
++	}
++
++	return ret;
++}
++
++static int vc4_fkms_page_flip(struct drm_crtc *crtc,
++			      struct drm_framebuffer *fb,
++			      struct drm_pending_vblank_event *event,
++			      uint32_t flags,
++			      struct drm_modeset_acquire_ctx *ctx)
++{
++	if (flags & DRM_MODE_PAGE_FLIP_ASYNC) {
++		DRM_ERROR("Async flips aren't allowed\n");
++		return -EINVAL;
++	}
++
++	return drm_atomic_helper_page_flip(crtc, fb, event, flags, ctx);
++}
++
++static struct drm_crtc_state *
++vc4_fkms_crtc_duplicate_state(struct drm_crtc *crtc)
++{
++	struct vc4_crtc_state *vc4_state, *old_vc4_state;
++
++	vc4_state = kzalloc(sizeof(*vc4_state), GFP_KERNEL);
++	if (!vc4_state)
++		return NULL;
++
++	old_vc4_state = to_vc4_crtc_state(crtc->state);
++	vc4_state->margins = old_vc4_state->margins;
++
++	__drm_atomic_helper_crtc_duplicate_state(crtc, &vc4_state->base);
++	return &vc4_state->base;
++}
++
++static void
++vc4_fkms_crtc_reset(struct drm_crtc *crtc)
++{
++	if (crtc->state)
++		__drm_atomic_helper_crtc_destroy_state(crtc->state);
++
++	crtc->state = kzalloc(sizeof(*crtc->state), GFP_KERNEL);
++	if (crtc->state)
++		crtc->state->crtc = crtc;
++}
++
++static int vc4_fkms_enable_vblank(struct drm_crtc *crtc)
++{
++	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++
++	DRM_DEBUG_KMS("[CRTC:%d] enable_vblank.\n",
++		      crtc->base.id);
++	vc4_crtc->vblank_enabled = true;
++
++	return 0;
++}
++
++static void vc4_fkms_disable_vblank(struct drm_crtc *crtc)
++{
++	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++
++	DRM_DEBUG_KMS("[CRTC:%d] disable_vblank.\n",
++		      crtc->base.id);
++	vc4_crtc->vblank_enabled = false;
++}
++
++static const struct drm_crtc_funcs vc4_crtc_funcs = {
++	.set_config = drm_atomic_helper_set_config,
++	.destroy = drm_crtc_cleanup,
++	.page_flip = vc4_fkms_page_flip,
++	.set_property = NULL,
++	.cursor_set = NULL, /* handled by drm_mode_cursor_universal */
++	.cursor_move = NULL, /* handled by drm_mode_cursor_universal */
++	.reset = vc4_fkms_crtc_reset,
++	.atomic_duplicate_state = vc4_fkms_crtc_duplicate_state,
++	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
++	.enable_vblank = vc4_fkms_enable_vblank,
++	.disable_vblank = vc4_fkms_disable_vblank,
++};
++
++static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = {
++	.mode_set_nofb = vc4_crtc_mode_set_nofb,
++	.mode_valid = vc4_crtc_mode_valid,
++	.atomic_check = vc4_crtc_atomic_check,
++	.atomic_flush = vc4_crtc_atomic_flush,
++	.atomic_enable = vc4_crtc_enable,
++	.atomic_disable = vc4_crtc_disable,
++};
++
++static const struct of_device_id vc4_firmware_kms_dt_match[] = {
++	{ .compatible = "raspberrypi,rpi-firmware-kms" },
++	{ .compatible = "raspberrypi,rpi-firmware-kms-2711",
++	  .data = (void *)1 },
++	{}
++};
++
++static enum drm_connector_status
++vc4_fkms_connector_detect(struct drm_connector *connector, bool force)
++{
++	DRM_DEBUG_KMS("connector detect.\n");
++	return connector_status_connected;
++}
++
++/* Queries the firmware to populate a drm_mode structure for this display */
++static int vc4_fkms_get_fw_mode(struct vc4_fkms_connector *fkms_connector,
++				struct drm_display_mode *mode)
++{
++	struct vc4_dev *vc4 = fkms_connector->vc4_dev;
++	struct set_timings timings = { 0 };
++	int ret;
++
++	timings.display = fkms_connector->display_number;
++
++	ret = rpi_firmware_property(vc4->firmware,
++				    RPI_FIRMWARE_GET_DISPLAY_TIMING, &timings,
++				    sizeof(timings));
++	if (ret || !timings.clock)
++		/* No mode returned - abort */
++		return -1;
++
++	/* Equivalent to DRM_MODE macro. */
++	memset(mode, 0, sizeof(*mode));
++	strncpy(mode->name, "FIXED_MODE", sizeof(mode->name));
++	mode->status = 0;
++	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
++	mode->clock = timings.clock;
++	mode->hdisplay = timings.hdisplay;
++	mode->hsync_start = timings.hsync_start;
++	mode->hsync_end = timings.hsync_end;
++	mode->htotal = timings.htotal;
++	mode->hskew = 0;
++	mode->vdisplay = timings.vdisplay;
++	mode->vsync_start = timings.vsync_start;
++	mode->vsync_end = timings.vsync_end;
++	mode->vtotal = timings.vtotal;
++	mode->vscan = timings.vscan;
++
++	if (timings.flags & TIMINGS_FLAGS_H_SYNC_POS)
++		mode->flags |= DRM_MODE_FLAG_PHSYNC;
++	else
++		mode->flags |= DRM_MODE_FLAG_NHSYNC;
++
++	if (timings.flags & TIMINGS_FLAGS_V_SYNC_POS)
++		mode->flags |= DRM_MODE_FLAG_PVSYNC;
++	else
++		mode->flags |= DRM_MODE_FLAG_NVSYNC;
++
++	if (timings.flags & TIMINGS_FLAGS_INTERLACE)
++		mode->flags |= DRM_MODE_FLAG_INTERLACE;
++
++	return 0;
++}
++
++static int vc4_fkms_get_edid_block(void *data, u8 *buf, unsigned int block,
++				   size_t len)
++{
++	struct vc4_fkms_connector *fkms_connector =
++					(struct vc4_fkms_connector *)data;
++	struct vc4_dev *vc4 = fkms_connector->vc4_dev;
++	struct mailbox_get_edid mb = {
++		.tag1 = { RPI_FIRMWARE_GET_EDID_BLOCK_DISPLAY,
++			  128 + 8, 0 },
++		.block = block,
++		.display_number = fkms_connector->display_number,
++	};
++	int ret = 0;
++
++	ret = rpi_firmware_property_list(vc4->firmware, &mb, sizeof(mb));
++
++	if (!ret)
++		memcpy(buf, mb.edid, len);
++
++	return ret;
++}
++
++static int vc4_fkms_connector_get_modes(struct drm_connector *connector)
++{
++	struct vc4_fkms_connector *fkms_connector =
++					to_vc4_fkms_connector(connector);
++	struct drm_encoder *encoder = fkms_connector->encoder;
++	struct vc4_fkms_encoder *vc4_encoder = to_vc4_fkms_encoder(encoder);
++	struct drm_display_mode fw_mode;
++	struct drm_display_mode *mode;
++	struct edid *edid;
++	int num_modes;
++
++	if (!vc4_fkms_get_fw_mode(fkms_connector, &fw_mode)) {
++		drm_mode_debug_printmodeline(&fw_mode);
++		mode = drm_mode_duplicate(connector->dev,
++					  &fw_mode);
++		drm_mode_probed_add(connector, mode);
++		num_modes = 1;	/* 1 mode */
++	} else {
++		edid = drm_do_get_edid(connector, vc4_fkms_get_edid_block,
++				       fkms_connector);
++
++		/* FIXME: Can we do CEC?
++		 * cec_s_phys_addr_from_edid(vc4->hdmi->cec_adap, edid);
++		 * if (!edid)
++		 *	return -ENODEV;
++		 */
++
++		vc4_encoder->hdmi_monitor = drm_detect_hdmi_monitor(edid);
++
++		drm_connector_update_edid_property(connector, edid);
++		num_modes = drm_add_edid_modes(connector, edid);
++		kfree(edid);
++	}
++
++	return num_modes;
++}
++
++/* This is the DSI panel resolution. Use this as a default should the firmware
++ * not respond to our request for the timings.
++ */
++static const struct drm_display_mode lcd_mode = {
++	DRM_MODE("800x480", DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
++		 25979400 / 1000,
++		 800, 800 + 1, 800 + 1 + 2, 800 + 1 + 2 + 46, 0,
++		 480, 480 + 7, 480 + 7 + 2, 480 + 7 + 2 + 21, 0,
++		 0)
++};
++
++static int vc4_fkms_lcd_connector_get_modes(struct drm_connector *connector)
++{
++	struct vc4_fkms_connector *fkms_connector =
++					to_vc4_fkms_connector(connector);
++	struct drm_display_mode *mode;
++	struct drm_display_mode fw_mode;
++
++	if (!vc4_fkms_get_fw_mode(fkms_connector, &fw_mode) && fw_mode.clock)
++		mode = drm_mode_duplicate(connector->dev,
++					  &fw_mode);
++	else
++		mode = drm_mode_duplicate(connector->dev,
++					  &lcd_mode);
++
++	if (!mode) {
++		DRM_ERROR("Failed to create a new display mode\n");
++		return -ENOMEM;
++	}
++
++	drm_mode_probed_add(connector, mode);
++
++	/* We have one mode */
++	return 1;
++}
++
++static struct drm_encoder *
++vc4_fkms_connector_best_encoder(struct drm_connector *connector)
++{
++	struct vc4_fkms_connector *fkms_connector =
++		to_vc4_fkms_connector(connector);
++	DRM_DEBUG_KMS("best_connector.\n");
++	return fkms_connector->encoder;
++}
++
++static void vc4_fkms_connector_destroy(struct drm_connector *connector)
++{
++	DRM_DEBUG_KMS("[CONNECTOR:%d] destroy.\n",
++		      connector->base.id);
++	drm_connector_unregister(connector);
++	drm_connector_cleanup(connector);
++}
++
++/**
++ * vc4_connector_duplicate_state - duplicate connector state
++ * @connector: digital connector
++ *
++ * Allocates and returns a copy of the connector state (both common and
++ * digital connector specific) for the specified connector.
++ *
++ * Returns: The newly allocated connector state, or NULL on failure.
++ */
++struct drm_connector_state *
++vc4_connector_duplicate_state(struct drm_connector *connector)
++{
++	struct vc4_fkms_connector_state *state;
++
++	state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);
++	if (!state)
++		return NULL;
++
++	__drm_atomic_helper_connector_duplicate_state(connector, &state->base);
++	return &state->base;
++}
++
++/**
++ * vc4_connector_atomic_get_property - hook for connector->atomic_get_property.
++ * @connector: Connector to get the property for.
++ * @state: Connector state to retrieve the property from.
++ * @property: Property to retrieve.
++ * @val: Return value for the property.
++ *
++ * Returns the atomic property value for a digital connector.
++ */
++int vc4_connector_atomic_get_property(struct drm_connector *connector,
++				      const struct drm_connector_state *state,
++				      struct drm_property *property,
++				      uint64_t *val)
++{
++	struct vc4_fkms_connector *fkms_connector =
++					to_vc4_fkms_connector(connector);
++	struct vc4_fkms_connector_state *vc4_conn_state =
++					to_vc4_fkms_connector_state(state);
++
++	if (property == fkms_connector->broadcast_rgb_property) {
++		*val = vc4_conn_state->broadcast_rgb;
++	} else {
++		DRM_DEBUG_ATOMIC("Unknown property [PROP:%d:%s]\n",
++				 property->base.id, property->name);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++/**
++ * vc4_connector_atomic_set_property - hook for connector->atomic_set_property.
++ * @connector: Connector to set the property for.
++ * @state: Connector state to set the property on.
++ * @property: Property to set.
++ * @val: New value for the property.
++ *
++ * Sets the atomic property value for a digital connector.
++ */
++int vc4_connector_atomic_set_property(struct drm_connector *connector,
++				      struct drm_connector_state *state,
++				      struct drm_property *property,
++				      uint64_t val)
++{
++	struct vc4_fkms_connector *fkms_connector =
++					to_vc4_fkms_connector(connector);
++	struct vc4_fkms_connector_state *vc4_conn_state =
++					to_vc4_fkms_connector_state(state);
++
++	if (property == fkms_connector->broadcast_rgb_property) {
++		vc4_conn_state->broadcast_rgb = val;
++		return 0;
++	}
++
++	DRM_DEBUG_ATOMIC("Unknown property [PROP:%d:%s]\n",
++			 property->base.id, property->name);
++	return -EINVAL;
++}
++
++static void vc4_hdmi_connector_reset(struct drm_connector *connector)
++{
++	drm_atomic_helper_connector_reset(connector);
++	drm_atomic_helper_connector_tv_reset(connector);
++}
++
++static const struct drm_connector_funcs vc4_fkms_connector_funcs = {
++	.detect = vc4_fkms_connector_detect,
++	.fill_modes = drm_helper_probe_single_connector_modes,
++	.destroy = vc4_fkms_connector_destroy,
++	.reset = vc4_hdmi_connector_reset,
++	.atomic_duplicate_state = vc4_connector_duplicate_state,
++	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
++	.atomic_get_property = vc4_connector_atomic_get_property,
++	.atomic_set_property = vc4_connector_atomic_set_property,
++};
++
++static const struct drm_connector_helper_funcs vc4_fkms_connector_helper_funcs = {
++	.get_modes = vc4_fkms_connector_get_modes,
++	.best_encoder = vc4_fkms_connector_best_encoder,
++};
++
++static const struct drm_connector_helper_funcs vc4_fkms_lcd_conn_helper_funcs = {
++	.get_modes = vc4_fkms_lcd_connector_get_modes,
++	.best_encoder = vc4_fkms_connector_best_encoder,
++};
++
++static const struct drm_prop_enum_list broadcast_rgb_names[] = {
++	{ VC4_BROADCAST_RGB_AUTO, "Automatic" },
++	{ VC4_BROADCAST_RGB_FULL, "Full" },
++	{ VC4_BROADCAST_RGB_LIMITED, "Limited 16:235" },
++};
++
++static void
++vc4_attach_broadcast_rgb_property(struct vc4_fkms_connector *fkms_connector)
++{
++	struct drm_device *dev = fkms_connector->base.dev;
++	struct drm_property *prop;
++
++	prop = fkms_connector->broadcast_rgb_property;
++	if (!prop) {
++		prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
++						"Broadcast RGB",
++						broadcast_rgb_names,
++						ARRAY_SIZE(broadcast_rgb_names));
++		if (!prop)
++			return;
++
++		fkms_connector->broadcast_rgb_property = prop;
++	}
++
++	drm_object_attach_property(&fkms_connector->base.base, prop, 0);
++}
++
++static struct drm_connector *
++vc4_fkms_connector_init(struct drm_device *dev, struct drm_encoder *encoder,
++			u32 display_num)
++{
++	struct drm_connector *connector = NULL;
++	struct vc4_fkms_connector *fkms_connector;
++	struct vc4_fkms_connector_state *conn_state = NULL;
++	struct vc4_dev *vc4_dev = to_vc4_dev(dev);
++	int ret = 0;
++
++	DRM_DEBUG_KMS("connector_init, display_num %u\n", display_num);
++
++	fkms_connector = devm_kzalloc(dev->dev, sizeof(*fkms_connector),
++				      GFP_KERNEL);
++	if (!fkms_connector)
++		return ERR_PTR(-ENOMEM);
++
++	/*
++	 * Allocate enough memory to hold vc4_fkms_connector_state,
++	 */
++	conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);
++	if (!conn_state) {
++		kfree(fkms_connector);
++		return ERR_PTR(-ENOMEM);
++	}
++
++	connector = &fkms_connector->base;
++
++	fkms_connector->encoder = encoder;
++	fkms_connector->display_number = display_num;
++	fkms_connector->display_type = vc4_get_display_type(display_num);
++	fkms_connector->vc4_dev = vc4_dev;
++
++	__drm_atomic_helper_connector_reset(connector,
++					    &conn_state->base);
++
++	if (fkms_connector->display_type == DRM_MODE_ENCODER_DSI) {
++		drm_connector_init(dev, connector, &vc4_fkms_connector_funcs,
++				   DRM_MODE_CONNECTOR_DSI);
++		drm_connector_helper_add(connector,
++					 &vc4_fkms_lcd_conn_helper_funcs);
++		connector->interlace_allowed = 0;
++	} else if (fkms_connector->display_type == DRM_MODE_ENCODER_TVDAC) {
++		drm_connector_init(dev, connector, &vc4_fkms_connector_funcs,
++				   DRM_MODE_CONNECTOR_Composite);
++		drm_connector_helper_add(connector,
++					 &vc4_fkms_lcd_conn_helper_funcs);
++		connector->interlace_allowed = 1;
++	} else {
++		drm_connector_init(dev, connector, &vc4_fkms_connector_funcs,
++				   DRM_MODE_CONNECTOR_HDMIA);
++		drm_connector_helper_add(connector,
++					 &vc4_fkms_connector_helper_funcs);
++		connector->interlace_allowed = 1;
++	}
++
++	ret = drm_mode_create_tv_margin_properties(dev);
++	if (ret)
++		goto fail;
++
++	drm_connector_attach_tv_margin_properties(connector);
++
++	connector->polled = (DRM_CONNECTOR_POLL_CONNECT |
++			     DRM_CONNECTOR_POLL_DISCONNECT);
++
++	connector->doublescan_allowed = 0;
++
++	vc4_attach_broadcast_rgb_property(fkms_connector);
++
++	drm_connector_attach_encoder(connector, encoder);
++
++	return connector;
++
++ fail:
++	if (connector)
++		vc4_fkms_connector_destroy(connector);
++
++	return ERR_PTR(ret);
++}
++
++static void vc4_fkms_encoder_destroy(struct drm_encoder *encoder)
++{
++	DRM_DEBUG_KMS("Encoder_destroy\n");
++	drm_encoder_cleanup(encoder);
++}
++
++static const struct drm_encoder_funcs vc4_fkms_encoder_funcs = {
++	.destroy = vc4_fkms_encoder_destroy,
++};
++
++static void vc4_fkms_display_power(struct drm_encoder *encoder, bool power)
++{
++	struct vc4_fkms_encoder *vc4_encoder = to_vc4_fkms_encoder(encoder);
++	struct vc4_dev *vc4 = to_vc4_dev(encoder->dev);
++
++	struct mailbox_display_pwr pwr = {
++		.tag1 = {RPI_FIRMWARE_SET_DISPLAY_POWER, 8, 0, },
++		.display = vc4_encoder->display_num,
++		.state = power ? 1 : 0,
++	};
++
++	rpi_firmware_property_list(vc4->firmware, &pwr, sizeof(pwr));
++}
++
++static void vc4_fkms_encoder_enable(struct drm_encoder *encoder)
++{
++	vc4_fkms_display_power(encoder, true);
++	DRM_DEBUG_KMS("Encoder_enable\n");
++}
++
++static void vc4_fkms_encoder_disable(struct drm_encoder *encoder)
++{
++	vc4_fkms_display_power(encoder, false);
++	DRM_DEBUG_KMS("Encoder_disable\n");
++}
++
++static const struct drm_encoder_helper_funcs vc4_fkms_encoder_helper_funcs = {
++	.enable = vc4_fkms_encoder_enable,
++	.disable = vc4_fkms_encoder_disable,
++};
++
++static int vc4_fkms_create_screen(struct device *dev, struct drm_device *drm,
++				  int display_idx, int display_ref,
++				  struct vc4_crtc **ret_crtc)
++{
++	struct vc4_dev *vc4 = to_vc4_dev(drm);
++	struct vc4_crtc *vc4_crtc;
++	struct vc4_fkms_encoder *vc4_encoder;
++	struct drm_crtc *crtc;
++	struct drm_plane *destroy_plane, *temp;
++	struct mailbox_blank_display blank = {
++		.tag1 = {RPI_FIRMWARE_FRAMEBUFFER_SET_DISPLAY_NUM, 4, 0, },
++		.display = display_idx,
++		.tag2 = { RPI_FIRMWARE_FRAMEBUFFER_BLANK, 4, 0, },
++		.blank = 1,
++	};
++	struct drm_plane *planes[PLANES_PER_CRTC];
++	int ret, i;
++
++	vc4_crtc = devm_kzalloc(dev, sizeof(*vc4_crtc), GFP_KERNEL);
++	if (!vc4_crtc)
++		return -ENOMEM;
++	crtc = &vc4_crtc->base;
++
++	vc4_crtc->display_number = display_ref;
++	vc4_crtc->display_type = vc4_get_display_type(display_ref);
++
++	/* Blank the firmware provided framebuffer */
++	rpi_firmware_property_list(vc4->firmware, &blank, sizeof(blank));
++
++	for (i = 0; i < PLANES_PER_CRTC; i++) {
++		planes[i] = vc4_fkms_plane_init(drm,
++						(i == 0) ?
++						  DRM_PLANE_TYPE_PRIMARY :
++						  (i == PLANES_PER_CRTC - 1) ?
++							DRM_PLANE_TYPE_CURSOR :
++							DRM_PLANE_TYPE_OVERLAY,
++						display_ref,
++						i + (display_idx * PLANES_PER_CRTC)
++					       );
++		if (IS_ERR(planes[i])) {
++			dev_err(dev, "failed to construct plane %u\n", i);
++			ret = PTR_ERR(planes[i]);
++			goto err;
++		}
++	}
++
++	drm_crtc_init_with_planes(drm, crtc, planes[0],
++				  planes[PLANES_PER_CRTC - 1], &vc4_crtc_funcs,
++				  NULL);
++	drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs);
++
++	/* Update the possible_crtcs mask for the overlay plane(s) */
++	for (i = 1; i < (PLANES_PER_CRTC - 1); i++)
++		planes[i]->possible_crtcs = drm_crtc_mask(crtc);
++
++	vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL);
++	if (!vc4_encoder)
++		return -ENOMEM;
++	vc4_crtc->encoder = &vc4_encoder->base;
++
++	vc4_encoder->display_num = display_ref;
++	vc4_encoder->base.possible_crtcs |= drm_crtc_mask(crtc);
++
++	drm_encoder_init(drm, &vc4_encoder->base, &vc4_fkms_encoder_funcs,
++			 vc4_crtc->display_type, NULL);
++	drm_encoder_helper_add(&vc4_encoder->base,
++			       &vc4_fkms_encoder_helper_funcs);
++
++	vc4_crtc->connector = vc4_fkms_connector_init(drm, &vc4_encoder->base,
++						      display_ref);
++	if (IS_ERR(vc4_crtc->connector)) {
++		ret = PTR_ERR(vc4_crtc->connector);
++		goto err_destroy_encoder;
++	}
++
++	*ret_crtc = vc4_crtc;
++
++	return 0;
++
++err_destroy_encoder:
++	vc4_fkms_encoder_destroy(vc4_crtc->encoder);
++	list_for_each_entry_safe(destroy_plane, temp,
++				 &drm->mode_config.plane_list, head) {
++		if (destroy_plane->possible_crtcs == 1 << drm_crtc_index(crtc))
++			destroy_plane->funcs->destroy(destroy_plane);
++	}
++err:
++	return ret;
++}
++
++static int vc4_fkms_bind(struct device *dev, struct device *master, void *data)
++{
++	struct platform_device *pdev = to_platform_device(dev);
++	struct drm_device *drm = dev_get_drvdata(master);
++	struct vc4_dev *vc4 = to_vc4_dev(drm);
++	struct device_node *firmware_node;
++	const struct of_device_id *match;
++	struct vc4_crtc **crtc_list;
++	u32 num_displays, display_num;
++	struct vc4_fkms *fkms;
++	int ret;
++	u32 display_id;
++
++	vc4->firmware_kms = true;
++
++	fkms = devm_kzalloc(dev, sizeof(*fkms), GFP_KERNEL);
++	if (!fkms)
++		return -ENOMEM;
++
++	match = of_match_device(vc4_firmware_kms_dt_match, dev);
++	if (!match)
++		return -ENODEV;
++	if (match->data)
++		fkms->bcm2711 = true;
++
++	firmware_node = of_parse_phandle(dev->of_node, "brcm,firmware", 0);
++	vc4->firmware = rpi_firmware_get(firmware_node);
++	if (!vc4->firmware) {
++		DRM_DEBUG("Failed to get Raspberry Pi firmware reference.\n");
++		return -EPROBE_DEFER;
++	}
++	of_node_put(firmware_node);
++
++	ret = rpi_firmware_property(vc4->firmware,
++				    RPI_FIRMWARE_FRAMEBUFFER_GET_NUM_DISPLAYS,
++				    &num_displays, sizeof(u32));
++
++	/* If we fail to get the number of displays, then
++	 * assume old firmware that doesn't have the mailbox call, so just
++	 * set one display
++	 */
++	if (ret) {
++		num_displays = 1;
++		DRM_WARN("Unable to determine number of displays - assuming 1\n");
++		ret = 0;
++	}
++
++	ret = rpi_firmware_property(vc4->firmware,
++				    RPI_FIRMWARE_GET_DISPLAY_CFG,
++				    &fkms->cfg, sizeof(fkms->cfg));
++
++	if (ret)
++		return -EINVAL;
++	/* The firmware works in Hz. This will be compared against kHz, so div
++	 * 1000 now rather than multiple times later.
++	 */
++	fkms->cfg.max_pixel_clock[0] /= 1000;
++	fkms->cfg.max_pixel_clock[1] /= 1000;
++
++	/* Allocate a list, with space for a NULL on the end */
++	crtc_list = devm_kzalloc(dev, sizeof(crtc_list) * (num_displays + 1),
++				 GFP_KERNEL);
++	if (!crtc_list)
++		return -ENOMEM;
++
++	for (display_num = 0; display_num < num_displays; display_num++) {
++		display_id = display_num;
++		ret = rpi_firmware_property(vc4->firmware,
++					    RPI_FIRMWARE_FRAMEBUFFER_GET_DISPLAY_ID,
++					    &display_id, sizeof(display_id));
++		/* FIXME: Determine the correct error handling here.
++		 * Should we fail to create the one "screen" but keep the
++		 * others, or fail the whole thing?
++		 */
++		if (ret)
++			DRM_ERROR("Failed to get display id %u\n", display_num);
++
++		ret = vc4_fkms_create_screen(dev, drm, display_num, display_id,
++					     &crtc_list[display_num]);
++		if (ret)
++			DRM_ERROR("Oh dear, failed to create display %u\n",
++				  display_num);
++	}
++
++	if (num_displays > 0) {
++		/* Map the SMI interrupt reg */
++		crtc_list[0]->regs = vc4_ioremap_regs(pdev, 0);
++		if (IS_ERR(crtc_list[0]->regs))
++			DRM_ERROR("Oh dear, failed to map registers\n");
++
++		writel(0, crtc_list[0]->regs + SMICS);
++		ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
++				       vc4_crtc_irq_handler, 0,
++				       "vc4 firmware kms", crtc_list);
++		if (ret)
++			DRM_ERROR("Oh dear, failed to register IRQ\n");
++	} else {
++		DRM_WARN("No displays found. Consider forcing hotplug if HDMI is attached\n");
++	}
++
++	vc4->fkms = fkms;
++
++	platform_set_drvdata(pdev, crtc_list);
++
++	return 0;
++}
++
++static void vc4_fkms_unbind(struct device *dev, struct device *master,
++			    void *data)
++{
++	struct platform_device *pdev = to_platform_device(dev);
++	struct vc4_crtc **crtc_list = dev_get_drvdata(dev);
++	int i;
++
++	for (i = 0; crtc_list[i]; i++) {
++		vc4_fkms_connector_destroy(crtc_list[i]->connector);
++		vc4_fkms_encoder_destroy(crtc_list[i]->encoder);
++		drm_crtc_cleanup(&crtc_list[i]->base);
++	}
++
++	platform_set_drvdata(pdev, NULL);
++}
++
++static const struct component_ops vc4_fkms_ops = {
++	.bind   = vc4_fkms_bind,
++	.unbind = vc4_fkms_unbind,
++};
++
++static int vc4_fkms_probe(struct platform_device *pdev)
++{
++	return component_add(&pdev->dev, &vc4_fkms_ops);
++}
++
++static int vc4_fkms_remove(struct platform_device *pdev)
++{
++	component_del(&pdev->dev, &vc4_fkms_ops);
++	return 0;
++}
++
++struct platform_driver vc4_firmware_kms_driver = {
++	.probe = vc4_fkms_probe,
++	.remove = vc4_fkms_remove,
++	.driver = {
++		.name = "vc4_firmware_kms",
++		.of_match_table = vc4_firmware_kms_dt_match,
++	},
++};
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -154,6 +154,9 @@ vc4_ctm_commit(struct vc4_dev *vc4, stru
+ 	struct vc4_ctm_state *ctm_state = to_vc4_ctm_state(vc4->ctm_manager.state);
+ 	struct drm_color_ctm *ctm = ctm_state->ctm;
+ 
++	if (vc4->firmware_kms)
++		return;
++
+ 	if (ctm_state->fifo) {
+ 		HVS_WRITE(SCALER_OLEDCOEF2,
+ 			  VC4_SET_FIELD(vc4_ctm_s31_32_to_s0_9(ctm->matrix[0]),
+@@ -315,14 +318,14 @@ vc4_atomic_complete_commit(struct drm_at
+ 	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ 		struct vc4_crtc_state *vc4_crtc_state;
+ 
+-		if (!new_crtc_state->commit)
++		if (!new_crtc_state->commit || vc4->firmware_kms)
+ 			continue;
+ 
+ 		vc4_crtc_state = to_vc4_crtc_state(new_crtc_state);
+ 		vc4_hvs_mask_underrun(dev, vc4_crtc_state->assigned_channel);
+ 	}
+ 
+-	if (vc4->hvs->hvs5)
++	if (vc4->hvs && vc4->hvs->hvs5)
+ 		clk_set_min_rate(hvs->core_clk, 500000000);
+ 
+ 	drm_atomic_helper_wait_for_fences(dev, state, false);
+@@ -333,10 +336,12 @@ vc4_atomic_complete_commit(struct drm_at
+ 
+ 	vc4_ctm_commit(vc4, state);
+ 
+-	if (vc4->hvs->hvs5)
+-		vc5_hvs_pv_muxing_commit(vc4, state);
+-	else
+-		vc4_hvs_pv_muxing_commit(vc4, state);
++	if (!vc4->firmware_kms) {
++		if (vc4->hvs->hvs5)
++			vc5_hvs_pv_muxing_commit(vc4, state);
++		else
++			vc4_hvs_pv_muxing_commit(vc4, state);
++	}
+ 
+ 	drm_atomic_helper_commit_planes(dev, state, 0);
+ 
+@@ -352,7 +357,7 @@ vc4_atomic_complete_commit(struct drm_at
+ 
+ 	drm_atomic_helper_commit_cleanup_done(state);
+ 
+-	if (vc4->hvs->hvs5)
++	if (vc4->hvs && vc4->hvs->hvs5)
+ 		clk_set_min_rate(hvs->core_clk, 0);
+ 
+ 	drm_atomic_state_put(state);
+@@ -413,7 +418,8 @@ static int vc4_atomic_commit(struct drm_
+ 	 * drm_atomic_helper_setup_commit() from auto-completing
+ 	 * commit->flip_done.
+ 	 */
+-	state->legacy_cursor_update = false;
++	if (!vc4->firmware_kms)
++		state->legacy_cursor_update = false;
+ 	ret = drm_atomic_helper_setup_commit(state, nonblock);
+ 	if (ret)
+ 		return ret;
+@@ -778,6 +784,7 @@ static int vc4_hvs_channels_obj_init(str
+ static int vc4_pv_muxing_atomic_check(struct drm_device *dev,
+ 				      struct drm_atomic_state *state)
+ {
++	struct vc4_dev *vc4 = to_vc4_dev(state->dev);
+ 	struct vc4_hvs_state *hvs_new_state;
+ 	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ 	struct drm_crtc *crtc;
+@@ -795,6 +802,9 @@ static int vc4_pv_muxing_atomic_check(st
+ 		struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 		unsigned int matching_channels;
+ 
++		if (vc4->firmware_kms)
++			continue;
++
+ 		/* Nothing to do here, let's skip it */
+ 		if (old_crtc_state->enable == new_crtc_state->enable)
+ 			continue;
+@@ -913,6 +923,7 @@ int vc4_kms_load(struct drm_device *dev)
+ 	dev->mode_config.preferred_depth = 24;
+ 	dev->mode_config.async_page_flip = true;
+ 	dev->mode_config.allow_fb_modifiers = true;
++	dev->mode_config.normalize_zpos = true;
+ 
+ 	ret = vc4_ctm_obj_init(vc4);
+ 	if (ret)
+--- /dev/null
++++ b/drivers/gpu/drm/vc4/vc_image_types.h
+@@ -0,0 +1,175 @@
++
++/*
++ * Copyright (c) 2012, Broadcom Europe Ltd
++ *
++ * Values taken from vc_image_types.h released by Broadcom at
++ * https://github.com/raspberrypi/userland/blob/master/interface/vctypes/vc_image_types.h
++ * and vc_image_structs.h at
++ * https://github.com/raspberrypi/userland/blob/master/interface/vctypes/vc_image_structs.h
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++enum {
++	VC_IMAGE_MIN = 0, //bounds for error checking
++
++	VC_IMAGE_RGB565 = 1,
++	VC_IMAGE_1BPP,
++	VC_IMAGE_YUV420,
++	VC_IMAGE_48BPP,
++	VC_IMAGE_RGB888,
++	VC_IMAGE_8BPP,
++	/* 4bpp palettised image */
++	VC_IMAGE_4BPP,
++	/* A separated format of 16 colour/light shorts followed by 16 z
++	 * values
++	 */
++	VC_IMAGE_3D32,
++	/* 16 colours followed by 16 z values */
++	VC_IMAGE_3D32B,
++	/* A separated format of 16 material/colour/light shorts followed by
++	 * 16 z values
++	 */
++	VC_IMAGE_3D32MAT,
++	/* 32 bit format containing 18 bits of 6.6.6 RGB, 9 bits per short */
++	VC_IMAGE_RGB2X9,
++	/* 32-bit format holding 18 bits of 6.6.6 RGB */
++	VC_IMAGE_RGB666,
++	/* 4bpp palettised image with embedded palette */
++	VC_IMAGE_PAL4_OBSOLETE,
++	/* 8bpp palettised image with embedded palette */
++	VC_IMAGE_PAL8_OBSOLETE,
++	/* RGB888 with an alpha byte after each pixel */
++	VC_IMAGE_RGBA32,
++	/* a line of Y (32-byte padded), a line of U (16-byte padded), and a
++	 * line of V (16-byte padded)
++	 */
++	VC_IMAGE_YUV422,
++	/* RGB565 with a transparent patch */
++	VC_IMAGE_RGBA565,
++	/* Compressed (4444) version of RGBA32 */
++	VC_IMAGE_RGBA16,
++	/* VCIII codec format */
++	VC_IMAGE_YUV_UV,
++	/* VCIII T-format RGBA8888 */
++	VC_IMAGE_TF_RGBA32,
++	/* VCIII T-format RGBx8888 */
++	VC_IMAGE_TF_RGBX32,
++	/* VCIII T-format float */
++	VC_IMAGE_TF_FLOAT,
++	/* VCIII T-format RGBA4444 */
++	VC_IMAGE_TF_RGBA16,
++	/* VCIII T-format RGB5551 */
++	VC_IMAGE_TF_RGBA5551,
++	/* VCIII T-format RGB565 */
++	VC_IMAGE_TF_RGB565,
++	/* VCIII T-format 8-bit luma and 8-bit alpha */
++	VC_IMAGE_TF_YA88,
++	/* VCIII T-format 8 bit generic sample */
++	VC_IMAGE_TF_BYTE,
++	/* VCIII T-format 8-bit palette */
++	VC_IMAGE_TF_PAL8,
++	/* VCIII T-format 4-bit palette */
++	VC_IMAGE_TF_PAL4,
++	/* VCIII T-format Ericsson Texture Compressed */
++	VC_IMAGE_TF_ETC1,
++	/* RGB888 with R & B swapped */
++	VC_IMAGE_BGR888,
++	/* RGB888 with R & B swapped, but with no pitch, i.e. no padding after
++	 * each row of pixels
++	 */
++	VC_IMAGE_BGR888_NP,
++	/* Bayer image, extra defines which variant is being used */
++	VC_IMAGE_BAYER,
++	/* General wrapper for codec images e.g. JPEG from camera */
++	VC_IMAGE_CODEC,
++	/* VCIII codec format */
++	VC_IMAGE_YUV_UV32,
++	/* VCIII T-format 8-bit luma */
++	VC_IMAGE_TF_Y8,
++	/* VCIII T-format 8-bit alpha */
++	VC_IMAGE_TF_A8,
++	/* VCIII T-format 16-bit generic sample */
++	VC_IMAGE_TF_SHORT,
++	/* VCIII T-format 1bpp black/white */
++	VC_IMAGE_TF_1BPP,
++	VC_IMAGE_OPENGL,
++	/* VCIII-B0 HVS YUV 4:4:4 interleaved samples */
++	VC_IMAGE_YUV444I,
++	/* Y, U, & V planes separately (VC_IMAGE_YUV422 has them interleaved on
++	 * a per line basis)
++	 */
++	VC_IMAGE_YUV422PLANAR,
++	/* 32bpp with 8bit alpha at MS byte, with R, G, B (LS byte) */
++	VC_IMAGE_ARGB8888,
++	/* 32bpp with 8bit unused at MS byte, with R, G, B (LS byte) */
++	VC_IMAGE_XRGB8888,
++
++	/* interleaved 8 bit samples of Y, U, Y, V (4 flavours) */
++	VC_IMAGE_YUV422YUYV,
++	VC_IMAGE_YUV422YVYU,
++	VC_IMAGE_YUV422UYVY,
++	VC_IMAGE_YUV422VYUY,
++
++	/* 32bpp like RGBA32 but with unused alpha */
++	VC_IMAGE_RGBX32,
++	/* 32bpp, corresponding to RGBA with unused alpha */
++	VC_IMAGE_RGBX8888,
++	/* 32bpp, corresponding to BGRA with unused alpha */
++	VC_IMAGE_BGRX8888,
++
++	/* Y as a plane, then UV byte interleaved in plane with same pitch,
++	 * half height
++	 */
++	VC_IMAGE_YUV420SP,
++
++	/* Y, U, & V planes separately 4:4:4 */
++	VC_IMAGE_YUV444PLANAR,
++
++	/* T-format 8-bit U - same as TF_Y8 buf from U plane */
++	VC_IMAGE_TF_U8,
++	/* T-format 8-bit U - same as TF_Y8 buf from V plane */
++	VC_IMAGE_TF_V8,
++
++	/* YUV4:2:0 planar, 16bit values */
++	VC_IMAGE_YUV420_16,
++	/* YUV4:2:0 codec format, 16bit values */
++	VC_IMAGE_YUV_UV_16,
++	/* YUV4:2:0 with U,V in side-by-side format */
++	VC_IMAGE_YUV420_S,
++	/* 10-bit YUV 420 column image format */
++	VC_IMAGE_YUV10COL,
++	/* 32-bpp, 10-bit R/G/B, 2-bit Alpha */
++	VC_IMAGE_RGBA1010102,
++
++	VC_IMAGE_MAX,     /* bounds for error checking */
++	VC_IMAGE_FORCE_ENUM_16BIT = 0xffff,
++};
++
++enum {
++	/* Unknown or unset - defaults to BT601 interstitial */
++	VC_IMAGE_YUVINFO_UNSPECIFIED    = 0,
++
++	/* colour-space conversions data [4 bits] */
++
++	/* ITU-R BT.601-5 [SDTV] (compatible with VideoCore-II) */
++	VC_IMAGE_YUVINFO_CSC_ITUR_BT601      = 1,
++	/* ITU-R BT.709-3 [HDTV] */
++	VC_IMAGE_YUVINFO_CSC_ITUR_BT709      = 2,
++	/* JPEG JFIF */
++	VC_IMAGE_YUVINFO_CSC_JPEG_JFIF       = 3,
++	/* Title 47 Code of Federal Regulations (2003) 73.682 (a) (20) */
++	VC_IMAGE_YUVINFO_CSC_FCC             = 4,
++	/* Society of Motion Picture and Television Engineers 240M (1999) */
++	VC_IMAGE_YUVINFO_CSC_SMPTE_240M      = 5,
++	/* ITU-R BT.470-2 System M */
++	VC_IMAGE_YUVINFO_CSC_ITUR_BT470_2_M  = 6,
++	/* ITU-R BT.470-2 System B,G */
++	VC_IMAGE_YUVINFO_CSC_ITUR_BT470_2_BG = 7,
++	/* JPEG JFIF, but with 16..255 luma */
++	VC_IMAGE_YUVINFO_CSC_JPEG_JFIF_Y16_255 = 8,
++	/* Rec 2020 */
++	VC_IMAGE_YUVINFO_CSC_REC_2020        = 9,
++};
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -75,6 +75,7 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_GET_DISPMANX_RESOURCE_MEM_HANDLE =       0x00030014,
+ 	RPI_FIRMWARE_GET_EDID_BLOCK =                         0x00030020,
+ 	RPI_FIRMWARE_GET_CUSTOMER_OTP =                       0x00030021,
++	RPI_FIRMWARE_GET_EDID_BLOCK_DISPLAY =                 0x00030023,
+ 	RPI_FIRMWARE_GET_DOMAIN_STATE =                       0x00030030,
+ 	RPI_FIRMWARE_GET_THROTTLED =                          0x00030046,
+ 	RPI_FIRMWARE_GET_CLOCK_MEASURED =                     0x00030047,
+@@ -148,6 +149,11 @@ enum rpi_firmware_property_tag {
+ 
+ 	RPI_FIRMWARE_VCHIQ_INIT =                             0x00048010,
+ 
++	RPI_FIRMWARE_SET_PLANE =                              0x00048015,
++	RPI_FIRMWARE_GET_DISPLAY_TIMING =                     0x00040017,
++	RPI_FIRMWARE_SET_TIMING =                             0x00048017,
++	RPI_FIRMWARE_GET_DISPLAY_CFG =                        0x00040018,
++	RPI_FIRMWARE_SET_DISPLAY_POWER =		      0x00048019,
+ 	RPI_FIRMWARE_GET_COMMAND_LINE =                       0x00050001,
+ 	RPI_FIRMWARE_GET_DMA_CHANNELS =                       0x00060001,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0322-drm-vc4-Add-FKMS-as-an-acceptable-node-for-dma-range.patch b/target/linux/bcm27xx/patches-5.10/950-0322-drm-vc4-Add-FKMS-as-an-acceptable-node-for-dma-range.patch
new file mode 100644
index 0000000000..d3f5582732
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0322-drm-vc4-Add-FKMS-as-an-acceptable-node-for-dma-range.patch
@@ -0,0 +1,27 @@
+From 169f0a14f21a95194c5de355ce9a95d36aa97bef Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 19 May 2020 16:20:30 +0100
+Subject: [PATCH] drm/vc4: Add FKMS as an acceptable node for dma
+ ranges.
+
+Under FKMS, the firmware (via FKMS) also requires the VideoCore cache
+aliases for image planes, as defined by the dma-ranges under /soc.
+
+Add rpi-firmware-kms to the list of acceptable nodes to look for
+to copy dma config from.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -248,6 +248,7 @@ static void vc4_match_add_drivers(struct
+ 
+ const struct of_device_id vc4_dma_range_matches[] = {
+ 	{ .compatible = "brcm,bcm2835-hvs" },
++	{ .compatible = "raspberrypi,rpi-firmware-kms" },
+ 	{ .compatible = "brcm,bcm2835-v3d" },
+ 	{ .compatible = "brcm,cygnus-v3d" },
+ 	{ .compatible = "brcm,vc4-v3d" },
diff --git a/target/linux/bcm27xx/patches-5.10/950-0323-media-i2c-Add-driver-for-Sony-IMX477-sensor.patch b/target/linux/bcm27xx/patches-5.10/950-0323-media-i2c-Add-driver-for-Sony-IMX477-sensor.patch
new file mode 100644
index 0000000000..bbfecb7ad6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0323-media-i2c-Add-driver-for-Sony-IMX477-sensor.patch
@@ -0,0 +1,2266 @@
+From 93582ca03e35b453e6da5c50a80339f5d00c3f05 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 8 May 2020 10:00:12 +0100
+Subject: [PATCH] media: i2c: Add driver for Sony IMX477 sensor
+
+Adds a driver for the 12MPix Sony IMX477 CSI2 sensor.
+Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver
+currently only supports 2 lanes.
+
+The following Bayer modes are currently available:
+
+4056x3040 12-bit @ 10fps
+2028x1520 12-bit (binned) @ 40fps
+2028x1050 12-bit (cropped/binned) @ 50fps
+1012x760 10-bit (scaled) @ 120 fps
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ MAINTAINERS                |    8 +
+ drivers/media/i2c/Kconfig  |   11 +
+ drivers/media/i2c/Makefile |    1 +
+ drivers/media/i2c/imx477.c | 2191 ++++++++++++++++++++++++++++++++++++
+ 4 files changed, 2211 insertions(+)
+ create mode 100644 drivers/media/i2c/imx477.c
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -16346,6 +16346,14 @@ S:	Maintained
+ T:	git git://linuxtv.org/media_tree.git
+ F:	drivers/media/i2c/imx355.c
+ 
++SONY IMX477 SENSOR DRIVER
++M:	Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
++L:	linux-media@vger.kernel.org
++S:	Maintained
++T:	git git://linuxtv.org/media_tree.git
++F:	Documentation/devicetree/bindings/media/i2c/imx477.yaml
++F:	drivers/media/i2c/imx477.c
++
+ SONY MEMORYSTICK SUBSYSTEM
+ M:	Maxim Levitsky <maximlevitsky@gmail.com>
+ M:	Alex Dubov <oakad@yahoo.com>
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -801,6 +801,17 @@ config VIDEO_IMX290
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called imx290.
+ 
++config VIDEO_IMX477
++	tristate "Sony IMX477 sensor support"
++	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
++	depends on MEDIA_CAMERA_SUPPORT
++	help
++	  This is a Video4Linux2 sensor driver for the Sony
++	  IMX477 camera.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called imx477.
++
+ config VIDEO_IMX319
+ 	tristate "Sony IMX319 sensor support"
+ 	depends on I2C && VIDEO_V4L2
+--- a/drivers/media/i2c/Makefile
++++ b/drivers/media/i2c/Makefile
+@@ -119,6 +119,7 @@ obj-$(CONFIG_VIDEO_IMX219)	+= imx219.o
+ obj-$(CONFIG_VIDEO_IMX258)	+= imx258.o
+ obj-$(CONFIG_VIDEO_IMX274)	+= imx274.o
+ obj-$(CONFIG_VIDEO_IMX290)	+= imx290.o
++obj-$(CONFIG_VIDEO_IMX477)	+= imx477.o
+ obj-$(CONFIG_VIDEO_IMX319)	+= imx319.o
+ obj-$(CONFIG_VIDEO_IMX355)	+= imx355.o
+ obj-$(CONFIG_VIDEO_MAX9286)	+= max9286.o
+--- /dev/null
++++ b/drivers/media/i2c/imx477.c
+@@ -0,0 +1,2191 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * A V4L2 driver for Sony IMX477 cameras.
++ * Copyright (C) 2020, Raspberry Pi (Trading) Ltd
++ *
++ * Based on Sony imx219 camera driver
++ * Copyright (C) 2019-2020 Raspberry Pi (Trading) Ltd
++ */
++#include <asm/unaligned.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/gpio/consumer.h>
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/pm_runtime.h>
++#include <linux/regulator/consumer.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-fwnode.h>
++#include <media/v4l2-mediabus.h>
++
++#define IMX477_REG_VALUE_08BIT		1
++#define IMX477_REG_VALUE_16BIT		2
++
++/* Chip ID */
++#define IMX477_REG_CHIP_ID		0x0016
++#define IMX477_CHIP_ID			0x0477
++
++#define IMX477_REG_MODE_SELECT		0x0100
++#define IMX477_MODE_STANDBY		0x00
++#define IMX477_MODE_STREAMING		0x01
++
++#define IMX477_REG_ORIENTATION		0x101
++
++#define IMX477_XCLK_FREQ		24000000
++
++#define IMX477_DEFAULT_LINK_FREQ	450000000
++
++/* Pixel rate is fixed at 840MHz for all the modes */
++#define IMX477_PIXEL_RATE		840000000
++
++/* V_TIMING internal */
++#define IMX477_REG_FRAME_LENGTH		0x0340
++#define IMX477_FRAME_LENGTH_MAX		0xffdc
++
++/* Exposure control */
++#define IMX477_REG_EXPOSURE		0x0202
++#define IMX477_EXPOSURE_OFFSET		22
++#define IMX477_EXPOSURE_MIN		20
++#define IMX477_EXPOSURE_STEP		1
++#define IMX477_EXPOSURE_DEFAULT		0x640
++#define IMX477_EXPOSURE_MAX		(IMX477_FRAME_LENGTH_MAX - \
++					 IMX477_EXPOSURE_OFFSET)
++
++/* Analog gain control */
++#define IMX477_REG_ANALOG_GAIN		0x0204
++#define IMX477_ANA_GAIN_MIN		0
++#define IMX477_ANA_GAIN_MAX		978
++#define IMX477_ANA_GAIN_STEP		1
++#define IMX477_ANA_GAIN_DEFAULT		0x0
++
++/* Digital gain control */
++#define IMX477_REG_DIGITAL_GAIN		0x020e
++#define IMX477_DGTL_GAIN_MIN		0x0100
++#define IMX477_DGTL_GAIN_MAX		0xffff
++#define IMX477_DGTL_GAIN_DEFAULT	0x0100
++#define IMX477_DGTL_GAIN_STEP		1
++
++/* Test Pattern Control */
++#define IMX477_REG_TEST_PATTERN		0x0600
++#define IMX477_TEST_PATTERN_DISABLE	0
++#define IMX477_TEST_PATTERN_SOLID_COLOR	1
++#define IMX477_TEST_PATTERN_COLOR_BARS	2
++#define IMX477_TEST_PATTERN_GREY_COLOR	3
++#define IMX477_TEST_PATTERN_PN9		4
++
++/* Test pattern colour components */
++#define IMX477_REG_TEST_PATTERN_R	0x0602
++#define IMX477_REG_TEST_PATTERN_GR	0x0604
++#define IMX477_REG_TEST_PATTERN_B	0x0606
++#define IMX477_REG_TEST_PATTERN_GB	0x0608
++#define IMX477_TEST_PATTERN_COLOUR_MIN	0
++#define IMX477_TEST_PATTERN_COLOUR_MAX	0x0fff
++#define IMX477_TEST_PATTERN_COLOUR_STEP	1
++#define IMX477_TEST_PATTERN_R_DEFAULT	IMX477_TEST_PATTERN_COLOUR_MAX
++#define IMX477_TEST_PATTERN_GR_DEFAULT	0
++#define IMX477_TEST_PATTERN_B_DEFAULT	0
++#define IMX477_TEST_PATTERN_GB_DEFAULT	0
++
++/* Embedded metadata stream structure */
++#define IMX477_EMBEDDED_LINE_WIDTH 16384
++#define IMX477_NUM_EMBEDDED_LINES 1
++
++enum pad_types {
++	IMAGE_PAD,
++	METADATA_PAD,
++	NUM_PADS
++};
++
++/* IMX477 native and active pixel array size. */
++#define IMX477_NATIVE_WIDTH		4072U
++#define IMX477_NATIVE_HEIGHT		3176U
++#define IMX477_PIXEL_ARRAY_LEFT		8U
++#define IMX477_PIXEL_ARRAY_TOP		16U
++#define IMX477_PIXEL_ARRAY_WIDTH	4056U
++#define IMX477_PIXEL_ARRAY_HEIGHT	3040U
++
++struct imx477_reg {
++	u16 address;
++	u8 val;
++};
++
++struct imx477_reg_list {
++	unsigned int num_of_regs;
++	const struct imx477_reg *regs;
++};
++
++/* Mode : resolution and related config&values */
++struct imx477_mode {
++	/* Frame width */
++	unsigned int width;
++
++	/* Frame height */
++	unsigned int height;
++
++	/* H-timing in pixels */
++	unsigned int line_length_pix;
++
++	/* Analog crop rectangle. */
++	struct v4l2_rect crop;
++
++	/* Highest possible framerate. */
++	struct v4l2_fract timeperframe_min;
++
++	/* Default framerate. */
++	struct v4l2_fract timeperframe_default;
++
++	/* Default register values */
++	struct imx477_reg_list reg_list;
++};
++
++static const struct imx477_reg mode_common_regs[] = {
++	{0x0136, 0x18},
++	{0x0137, 0x00},
++	{0xe000, 0x00},
++	{0xe07a, 0x01},
++	{0x0808, 0x02},
++	{0x4ae9, 0x18},
++	{0x4aea, 0x08},
++	{0xf61c, 0x04},
++	{0xf61e, 0x04},
++	{0x4ae9, 0x21},
++	{0x4aea, 0x80},
++	{0x38a8, 0x1f},
++	{0x38a9, 0xff},
++	{0x38aa, 0x1f},
++	{0x38ab, 0xff},
++	{0x55d4, 0x00},
++	{0x55d5, 0x00},
++	{0x55d6, 0x07},
++	{0x55d7, 0xff},
++	{0x55e8, 0x07},
++	{0x55e9, 0xff},
++	{0x55ea, 0x00},
++	{0x55eb, 0x00},
++	{0x574c, 0x07},
++	{0x574d, 0xff},
++	{0x574e, 0x00},
++	{0x574f, 0x00},
++	{0x5754, 0x00},
++	{0x5755, 0x00},
++	{0x5756, 0x07},
++	{0x5757, 0xff},
++	{0x5973, 0x04},
++	{0x5974, 0x01},
++	{0x5d13, 0xc3},
++	{0x5d14, 0x58},
++	{0x5d15, 0xa3},
++	{0x5d16, 0x1d},
++	{0x5d17, 0x65},
++	{0x5d18, 0x8c},
++	{0x5d1a, 0x06},
++	{0x5d1b, 0xa9},
++	{0x5d1c, 0x45},
++	{0x5d1d, 0x3a},
++	{0x5d1e, 0xab},
++	{0x5d1f, 0x15},
++	{0x5d21, 0x0e},
++	{0x5d22, 0x52},
++	{0x5d23, 0xaa},
++	{0x5d24, 0x7d},
++	{0x5d25, 0x57},
++	{0x5d26, 0xa8},
++	{0x5d37, 0x5a},
++	{0x5d38, 0x5a},
++	{0x5d77, 0x7f},
++	{0x7b75, 0x0e},
++	{0x7b76, 0x0b},
++	{0x7b77, 0x08},
++	{0x7b78, 0x0a},
++	{0x7b79, 0x47},
++	{0x7b7c, 0x00},
++	{0x7b7d, 0x00},
++	{0x8d1f, 0x00},
++	{0x8d27, 0x00},
++	{0x9004, 0x03},
++	{0x9200, 0x50},
++	{0x9201, 0x6c},
++	{0x9202, 0x71},
++	{0x9203, 0x00},
++	{0x9204, 0x71},
++	{0x9205, 0x01},
++	{0x9371, 0x6a},
++	{0x9373, 0x6a},
++	{0x9375, 0x64},
++	{0x991a, 0x00},
++	{0x996b, 0x8c},
++	{0x996c, 0x64},
++	{0x996d, 0x50},
++	{0x9a4c, 0x0d},
++	{0x9a4d, 0x0d},
++	{0xa001, 0x0a},
++	{0xa003, 0x0a},
++	{0xa005, 0x0a},
++	{0xa006, 0x01},
++	{0xa007, 0xc0},
++	{0xa009, 0xc0},
++	{0x3d8a, 0x01},
++	{0x4421, 0x04},
++	{0x7b3b, 0x01},
++	{0x7b4c, 0x00},
++	{0x9905, 0x00},
++	{0x9907, 0x00},
++	{0x9909, 0x00},
++	{0x990b, 0x00},
++	{0x9944, 0x3c},
++	{0x9947, 0x3c},
++	{0x994a, 0x8c},
++	{0x994b, 0x50},
++	{0x994c, 0x1b},
++	{0x994d, 0x8c},
++	{0x994e, 0x50},
++	{0x994f, 0x1b},
++	{0x9950, 0x8c},
++	{0x9951, 0x1b},
++	{0x9952, 0x0a},
++	{0x9953, 0x8c},
++	{0x9954, 0x1b},
++	{0x9955, 0x0a},
++	{0x9a13, 0x04},
++	{0x9a14, 0x04},
++	{0x9a19, 0x00},
++	{0x9a1c, 0x04},
++	{0x9a1d, 0x04},
++	{0x9a26, 0x05},
++	{0x9a27, 0x05},
++	{0x9a2c, 0x01},
++	{0x9a2d, 0x03},
++	{0x9a2f, 0x05},
++	{0x9a30, 0x05},
++	{0x9a41, 0x00},
++	{0x9a46, 0x00},
++	{0x9a47, 0x00},
++	{0x9c17, 0x35},
++	{0x9c1d, 0x31},
++	{0x9c29, 0x50},
++	{0x9c3b, 0x2f},
++	{0x9c41, 0x6b},
++	{0x9c47, 0x2d},
++	{0x9c4d, 0x40},
++	{0x9c6b, 0x00},
++	{0x9c71, 0xc8},
++	{0x9c73, 0x32},
++	{0x9c75, 0x04},
++	{0x9c7d, 0x2d},
++	{0x9c83, 0x40},
++	{0x9c94, 0x3f},
++	{0x9c95, 0x3f},
++	{0x9c96, 0x3f},
++	{0x9c97, 0x00},
++	{0x9c98, 0x00},
++	{0x9c99, 0x00},
++	{0x9c9a, 0x3f},
++	{0x9c9b, 0x3f},
++	{0x9c9c, 0x3f},
++	{0x9ca0, 0x0f},
++	{0x9ca1, 0x0f},
++	{0x9ca2, 0x0f},
++	{0x9ca3, 0x00},
++	{0x9ca4, 0x00},
++	{0x9ca5, 0x00},
++	{0x9ca6, 0x1e},
++	{0x9ca7, 0x1e},
++	{0x9ca8, 0x1e},
++	{0x9ca9, 0x00},
++	{0x9caa, 0x00},
++	{0x9cab, 0x00},
++	{0x9cac, 0x09},
++	{0x9cad, 0x09},
++	{0x9cae, 0x09},
++	{0x9cbd, 0x50},
++	{0x9cbf, 0x50},
++	{0x9cc1, 0x50},
++	{0x9cc3, 0x40},
++	{0x9cc5, 0x40},
++	{0x9cc7, 0x40},
++	{0x9cc9, 0x0a},
++	{0x9ccb, 0x0a},
++	{0x9ccd, 0x0a},
++	{0x9d17, 0x35},
++	{0x9d1d, 0x31},
++	{0x9d29, 0x50},
++	{0x9d3b, 0x2f},
++	{0x9d41, 0x6b},
++	{0x9d47, 0x42},
++	{0x9d4d, 0x5a},
++	{0x9d6b, 0x00},
++	{0x9d71, 0xc8},
++	{0x9d73, 0x32},
++	{0x9d75, 0x04},
++	{0x9d7d, 0x42},
++	{0x9d83, 0x5a},
++	{0x9d94, 0x3f},
++	{0x9d95, 0x3f},
++	{0x9d96, 0x3f},
++	{0x9d97, 0x00},
++	{0x9d98, 0x00},
++	{0x9d99, 0x00},
++	{0x9d9a, 0x3f},
++	{0x9d9b, 0x3f},
++	{0x9d9c, 0x3f},
++	{0x9d9d, 0x1f},
++	{0x9d9e, 0x1f},
++	{0x9d9f, 0x1f},
++	{0x9da0, 0x0f},
++	{0x9da1, 0x0f},
++	{0x9da2, 0x0f},
++	{0x9da3, 0x00},
++	{0x9da4, 0x00},
++	{0x9da5, 0x00},
++	{0x9da6, 0x1e},
++	{0x9da7, 0x1e},
++	{0x9da8, 0x1e},
++	{0x9da9, 0x00},
++	{0x9daa, 0x00},
++	{0x9dab, 0x00},
++	{0x9dac, 0x09},
++	{0x9dad, 0x09},
++	{0x9dae, 0x09},
++	{0x9dc9, 0x0a},
++	{0x9dcb, 0x0a},
++	{0x9dcd, 0x0a},
++	{0x9e17, 0x35},
++	{0x9e1d, 0x31},
++	{0x9e29, 0x50},
++	{0x9e3b, 0x2f},
++	{0x9e41, 0x6b},
++	{0x9e47, 0x2d},
++	{0x9e4d, 0x40},
++	{0x9e6b, 0x00},
++	{0x9e71, 0xc8},
++	{0x9e73, 0x32},
++	{0x9e75, 0x04},
++	{0x9e94, 0x0f},
++	{0x9e95, 0x0f},
++	{0x9e96, 0x0f},
++	{0x9e97, 0x00},
++	{0x9e98, 0x00},
++	{0x9e99, 0x00},
++	{0x9ea0, 0x0f},
++	{0x9ea1, 0x0f},
++	{0x9ea2, 0x0f},
++	{0x9ea3, 0x00},
++	{0x9ea4, 0x00},
++	{0x9ea5, 0x00},
++	{0x9ea6, 0x3f},
++	{0x9ea7, 0x3f},
++	{0x9ea8, 0x3f},
++	{0x9ea9, 0x00},
++	{0x9eaa, 0x00},
++	{0x9eab, 0x00},
++	{0x9eac, 0x09},
++	{0x9ead, 0x09},
++	{0x9eae, 0x09},
++	{0x9ec9, 0x0a},
++	{0x9ecb, 0x0a},
++	{0x9ecd, 0x0a},
++	{0x9f17, 0x35},
++	{0x9f1d, 0x31},
++	{0x9f29, 0x50},
++	{0x9f3b, 0x2f},
++	{0x9f41, 0x6b},
++	{0x9f47, 0x42},
++	{0x9f4d, 0x5a},
++	{0x9f6b, 0x00},
++	{0x9f71, 0xc8},
++	{0x9f73, 0x32},
++	{0x9f75, 0x04},
++	{0x9f94, 0x0f},
++	{0x9f95, 0x0f},
++	{0x9f96, 0x0f},
++	{0x9f97, 0x00},
++	{0x9f98, 0x00},
++	{0x9f99, 0x00},
++	{0x9f9a, 0x2f},
++	{0x9f9b, 0x2f},
++	{0x9f9c, 0x2f},
++	{0x9f9d, 0x00},
++	{0x9f9e, 0x00},
++	{0x9f9f, 0x00},
++	{0x9fa0, 0x0f},
++	{0x9fa1, 0x0f},
++	{0x9fa2, 0x0f},
++	{0x9fa3, 0x00},
++	{0x9fa4, 0x00},
++	{0x9fa5, 0x00},
++	{0x9fa6, 0x1e},
++	{0x9fa7, 0x1e},
++	{0x9fa8, 0x1e},
++	{0x9fa9, 0x00},
++	{0x9faa, 0x00},
++	{0x9fab, 0x00},
++	{0x9fac, 0x09},
++	{0x9fad, 0x09},
++	{0x9fae, 0x09},
++	{0x9fc9, 0x0a},
++	{0x9fcb, 0x0a},
++	{0x9fcd, 0x0a},
++	{0xa14b, 0xff},
++	{0xa151, 0x0c},
++	{0xa153, 0x50},
++	{0xa155, 0x02},
++	{0xa157, 0x00},
++	{0xa1ad, 0xff},
++	{0xa1b3, 0x0c},
++	{0xa1b5, 0x50},
++	{0xa1b9, 0x00},
++	{0xa24b, 0xff},
++	{0xa257, 0x00},
++	{0xa2ad, 0xff},
++	{0xa2b9, 0x00},
++	{0xb21f, 0x04},
++	{0xb35c, 0x00},
++	{0xb35e, 0x08},
++	{0x0112, 0x0c},
++	{0x0113, 0x0c},
++	{0x0114, 0x01},
++	{0x0350, 0x00},
++	{0xbcf1, 0x02},
++	{0x3ff9, 0x01},
++};
++
++/* 12 mpix 10fps */
++static const struct imx477_reg mode_4056x3040_regs[] = {
++	{0x0342, 0x5d},
++	{0x0343, 0xc0},
++	{0x0344, 0x00},
++	{0x0345, 0x00},
++	{0x0346, 0x00},
++	{0x0347, 0x00},
++	{0x0348, 0x0f},
++	{0x0349, 0xd7},
++	{0x034a, 0x0b},
++	{0x034b, 0xdf},
++	{0x00e3, 0x00},
++	{0x00e4, 0x00},
++	{0x00fc, 0x0a},
++	{0x00fd, 0x0a},
++	{0x00fe, 0x0a},
++	{0x00ff, 0x0a},
++	{0x0220, 0x00},
++	{0x0221, 0x11},
++	{0x0381, 0x01},
++	{0x0383, 0x01},
++	{0x0385, 0x01},
++	{0x0387, 0x01},
++	{0x0900, 0x00},
++	{0x0901, 0x11},
++	{0x0902, 0x02},
++	{0x3140, 0x02},
++	{0x3c00, 0x00},
++	{0x3c01, 0x03},
++	{0x3c02, 0xa2},
++	{0x3f0d, 0x01},
++	{0x5748, 0x07},
++	{0x5749, 0xff},
++	{0x574a, 0x00},
++	{0x574b, 0x00},
++	{0x7b75, 0x0a},
++	{0x7b76, 0x0c},
++	{0x7b77, 0x07},
++	{0x7b78, 0x06},
++	{0x7b79, 0x3c},
++	{0x7b53, 0x01},
++	{0x9369, 0x5a},
++	{0x936b, 0x55},
++	{0x936d, 0x28},
++	{0x9304, 0x00},
++	{0x9305, 0x00},
++	{0x9e9a, 0x2f},
++	{0x9e9b, 0x2f},
++	{0x9e9c, 0x2f},
++	{0x9e9d, 0x00},
++	{0x9e9e, 0x00},
++	{0x9e9f, 0x00},
++	{0xa2a9, 0x60},
++	{0xa2b7, 0x00},
++	{0x0401, 0x00},
++	{0x0404, 0x00},
++	{0x0405, 0x10},
++	{0x0408, 0x00},
++	{0x0409, 0x00},
++	{0x040a, 0x00},
++	{0x040b, 0x00},
++	{0x040c, 0x0f},
++	{0x040d, 0xd8},
++	{0x040e, 0x0b},
++	{0x040f, 0xe0},
++	{0x034c, 0x0f},
++	{0x034d, 0xd8},
++	{0x034e, 0x0b},
++	{0x034f, 0xe0},
++	{0x0301, 0x05},
++	{0x0303, 0x02},
++	{0x0305, 0x04},
++	{0x0306, 0x01},
++	{0x0307, 0x5e},
++	{0x0309, 0x0c},
++	{0x030b, 0x02},
++	{0x030d, 0x02},
++	{0x030e, 0x00},
++	{0x030f, 0x96},
++	{0x0310, 0x01},
++	{0x0820, 0x07},
++	{0x0821, 0x08},
++	{0x0822, 0x00},
++	{0x0823, 0x00},
++	{0x080a, 0x00},
++	{0x080b, 0x7f},
++	{0x080c, 0x00},
++	{0x080d, 0x4f},
++	{0x080e, 0x00},
++	{0x080f, 0x77},
++	{0x0810, 0x00},
++	{0x0811, 0x5f},
++	{0x0812, 0x00},
++	{0x0813, 0x57},
++	{0x0814, 0x00},
++	{0x0815, 0x4f},
++	{0x0816, 0x01},
++	{0x0817, 0x27},
++	{0x0818, 0x00},
++	{0x0819, 0x3f},
++	{0xe04c, 0x00},
++	{0xe04d, 0x7f},
++	{0xe04e, 0x00},
++	{0xe04f, 0x1f},
++	{0x3e20, 0x01},
++	{0x3e37, 0x00},
++	{0x3f50, 0x00},
++	{0x3f56, 0x02},
++	{0x3f57, 0xae},
++};
++
++/* 2x2 binned. 40fps */
++static const struct imx477_reg mode_2028x1520_regs[] = {
++	{0x0342, 0x31},
++	{0x0343, 0xc4},
++	{0x0344, 0x00},
++	{0x0345, 0x00},
++	{0x0346, 0x00},
++	{0x0347, 0x00},
++	{0x0348, 0x0f},
++	{0x0349, 0xd7},
++	{0x034a, 0x0b},
++	{0x034b, 0xdf},
++	{0x0220, 0x00},
++	{0x0221, 0x11},
++	{0x0381, 0x01},
++	{0x0383, 0x01},
++	{0x0385, 0x01},
++	{0x0387, 0x01},
++	{0x0900, 0x01},
++	{0x0901, 0x12},
++	{0x0902, 0x02},
++	{0x3140, 0x02},
++	{0x3c00, 0x00},
++	{0x3c01, 0x03},
++	{0x3c02, 0xa2},
++	{0x3f0d, 0x01},
++	{0x5748, 0x07},
++	{0x5749, 0xff},
++	{0x574a, 0x00},
++	{0x574b, 0x00},
++	{0x7b53, 0x01},
++	{0x9369, 0x73},
++	{0x936b, 0x64},
++	{0x936d, 0x5f},
++	{0x9304, 0x00},
++	{0x9305, 0x00},
++	{0x9e9a, 0x2f},
++	{0x9e9b, 0x2f},
++	{0x9e9c, 0x2f},
++	{0x9e9d, 0x00},
++	{0x9e9e, 0x00},
++	{0x9e9f, 0x00},
++	{0xa2a9, 0x60},
++	{0xa2b7, 0x00},
++	{0x0401, 0x01},
++	{0x0404, 0x00},
++	{0x0405, 0x20},
++	{0x0408, 0x00},
++	{0x0409, 0x00},
++	{0x040a, 0x00},
++	{0x040b, 0x00},
++	{0x040c, 0x0f},
++	{0x040d, 0xd8},
++	{0x040e, 0x0b},
++	{0x040f, 0xe0},
++	{0x034c, 0x07},
++	{0x034d, 0xec},
++	{0x034e, 0x05},
++	{0x034f, 0xf0},
++	{0x0301, 0x05},
++	{0x0303, 0x02},
++	{0x0305, 0x04},
++	{0x0306, 0x01},
++	{0x0307, 0x5e},
++	{0x0309, 0x0c},
++	{0x030b, 0x02},
++	{0x030d, 0x02},
++	{0x030e, 0x00},
++	{0x030f, 0x96},
++	{0x0310, 0x01},
++	{0x0820, 0x07},
++	{0x0821, 0x08},
++	{0x0822, 0x00},
++	{0x0823, 0x00},
++	{0x080a, 0x00},
++	{0x080b, 0x7f},
++	{0x080c, 0x00},
++	{0x080d, 0x4f},
++	{0x080e, 0x00},
++	{0x080f, 0x77},
++	{0x0810, 0x00},
++	{0x0811, 0x5f},
++	{0x0812, 0x00},
++	{0x0813, 0x57},
++	{0x0814, 0x00},
++	{0x0815, 0x4f},
++	{0x0816, 0x01},
++	{0x0817, 0x27},
++	{0x0818, 0x00},
++	{0x0819, 0x3f},
++	{0xe04c, 0x00},
++	{0xe04d, 0x7f},
++	{0xe04e, 0x00},
++	{0xe04f, 0x1f},
++	{0x3e20, 0x01},
++	{0x3e37, 0x00},
++	{0x3f50, 0x00},
++	{0x3f56, 0x01},
++	{0x3f57, 0x6c},
++};
++
++/* 1080p cropped mode */
++static const struct imx477_reg mode_2028x1080_regs[] = {
++	{0x0342, 0x31},
++	{0x0343, 0xc4},
++	{0x0344, 0x00},
++	{0x0345, 0x00},
++	{0x0346, 0x01},
++	{0x0347, 0xb8},
++	{0x0348, 0x0f},
++	{0x0349, 0xd7},
++	{0x034a, 0x0a},
++	{0x034b, 0x27},
++	{0x0220, 0x00},
++	{0x0221, 0x11},
++	{0x0381, 0x01},
++	{0x0383, 0x01},
++	{0x0385, 0x01},
++	{0x0387, 0x01},
++	{0x0900, 0x01},
++	{0x0901, 0x12},
++	{0x0902, 0x02},
++	{0x3140, 0x02},
++	{0x3c00, 0x00},
++	{0x3c01, 0x03},
++	{0x3c02, 0xa2},
++	{0x3f0d, 0x01},
++	{0x5748, 0x07},
++	{0x5749, 0xff},
++	{0x574a, 0x00},
++	{0x574b, 0x00},
++	{0x7b53, 0x01},
++	{0x9369, 0x73},
++	{0x936b, 0x64},
++	{0x936d, 0x5f},
++	{0x9304, 0x00},
++	{0x9305, 0x00},
++	{0x9e9a, 0x2f},
++	{0x9e9b, 0x2f},
++	{0x9e9c, 0x2f},
++	{0x9e9d, 0x00},
++	{0x9e9e, 0x00},
++	{0x9e9f, 0x00},
++	{0xa2a9, 0x60},
++	{0xa2b7, 0x00},
++	{0x0401, 0x01},
++	{0x0404, 0x00},
++	{0x0405, 0x20},
++	{0x0408, 0x00},
++	{0x0409, 0x00},
++	{0x040a, 0x00},
++	{0x040b, 0x00},
++	{0x040c, 0x0f},
++	{0x040d, 0xd8},
++	{0x040e, 0x04},
++	{0x040f, 0x38},
++	{0x034c, 0x07},
++	{0x034d, 0xec},
++	{0x034e, 0x04},
++	{0x034f, 0x38},
++	{0x0301, 0x05},
++	{0x0303, 0x02},
++	{0x0305, 0x04},
++	{0x0306, 0x01},
++	{0x0307, 0x5e},
++	{0x0309, 0x0c},
++	{0x030b, 0x02},
++	{0x030d, 0x02},
++	{0x030e, 0x00},
++	{0x030f, 0x96},
++	{0x0310, 0x01},
++	{0x0820, 0x07},
++	{0x0821, 0x08},
++	{0x0822, 0x00},
++	{0x0823, 0x00},
++	{0x080a, 0x00},
++	{0x080b, 0x7f},
++	{0x080c, 0x00},
++	{0x080d, 0x4f},
++	{0x080e, 0x00},
++	{0x080f, 0x77},
++	{0x0810, 0x00},
++	{0x0811, 0x5f},
++	{0x0812, 0x00},
++	{0x0813, 0x57},
++	{0x0814, 0x00},
++	{0x0815, 0x4f},
++	{0x0816, 0x01},
++	{0x0817, 0x27},
++	{0x0818, 0x00},
++	{0x0819, 0x3f},
++	{0xe04c, 0x00},
++	{0xe04d, 0x7f},
++	{0xe04e, 0x00},
++	{0xe04f, 0x1f},
++	{0x3e20, 0x01},
++	{0x3e37, 0x00},
++	{0x3f50, 0x00},
++	{0x3f56, 0x01},
++	{0x3f57, 0x6c},
++};
++
++/* 4x4 binned. 120fps */
++static const struct imx477_reg mode_1012x760_regs[] = {
++	{0x420b, 0x01},
++	{0x990c, 0x00},
++	{0x990d, 0x08},
++	{0x9956, 0x8c},
++	{0x9957, 0x64},
++	{0x9958, 0x50},
++	{0x9a48, 0x06},
++	{0x9a49, 0x06},
++	{0x9a4a, 0x06},
++	{0x9a4b, 0x06},
++	{0x9a4c, 0x06},
++	{0x9a4d, 0x06},
++	{0x0112, 0x0a},
++	{0x0113, 0x0a},
++	{0x0114, 0x01},
++	{0x0342, 0x14},
++	{0x0343, 0x60},
++	{0x0344, 0x00},
++	{0x0345, 0x00},
++	{0x0346, 0x00},
++	{0x0347, 0x00},
++	{0x0348, 0x0f},
++	{0x0349, 0xd3},
++	{0x034a, 0x0b},
++	{0x034b, 0xdf},
++	{0x00e3, 0x00},
++	{0x00e4, 0x00},
++	{0x00fc, 0x0a},
++	{0x00fd, 0x0a},
++	{0x00fe, 0x0a},
++	{0x00ff, 0x0a},
++	{0x0220, 0x00},
++	{0x0221, 0x11},
++	{0x0381, 0x01},
++	{0x0383, 0x01},
++	{0x0385, 0x01},
++	{0x0387, 0x03},
++	{0x0900, 0x01},
++	{0x0901, 0x22},
++	{0x0902, 0x02},
++	{0x3140, 0x02},
++	{0x3c00, 0x00},
++	{0x3c01, 0x01},
++	{0x3c02, 0x9c},
++	{0x3f0d, 0x00},
++	{0x5748, 0x00},
++	{0x5749, 0x00},
++	{0x574a, 0x00},
++	{0x574b, 0xa4},
++	{0x7b75, 0x0e},
++	{0x7b76, 0x09},
++	{0x7b77, 0x08},
++	{0x7b78, 0x06},
++	{0x7b79, 0x34},
++	{0x7b53, 0x00},
++	{0x9369, 0x73},
++	{0x936b, 0x64},
++	{0x936d, 0x5f},
++	{0x9304, 0x03},
++	{0x9305, 0x80},
++	{0x9e9a, 0x3f},
++	{0x9e9b, 0x3f},
++	{0x9e9c, 0x3f},
++	{0x9e9d, 0x27},
++	{0x9e9e, 0x27},
++	{0x9e9f, 0x27},
++	{0xa2a9, 0x27},
++	{0xa2b7, 0x03},
++	{0x0401, 0x01},
++	{0x0404, 0x00},
++	{0x0405, 0x20},
++	{0x0408, 0x00},
++	{0x0409, 0x00},
++	{0x040a, 0x00},
++	{0x040b, 0x00},
++	{0x040c, 0x07},
++	{0x040d, 0xea},
++	{0x040e, 0x02},
++	{0x040f, 0xf8},
++	{0x034c, 0x03},
++	{0x034d, 0xf4},
++	{0x034e, 0x02},
++	{0x034f, 0xf8},
++	{0x0301, 0x05},
++	{0x0303, 0x02},
++	{0x0305, 0x02},
++	{0x0306, 0x00},
++	{0x0307, 0xaf},
++	{0x0309, 0x0a},
++	{0x030b, 0x02},
++	{0x030d, 0x02},
++	{0x030e, 0x00},
++	{0x030f, 0x96},
++	{0x0310, 0x01},
++	{0x0820, 0x07},
++	{0x0821, 0x08},
++	{0x0822, 0x00},
++	{0x0823, 0x00},
++	{0x080a, 0x00},
++	{0x080b, 0x6f},
++	{0x080c, 0x00},
++	{0x080d, 0x3f},
++	{0x080e, 0x00},
++	{0x080f, 0xff},
++	{0x0810, 0x00},
++	{0x0811, 0x4f},
++	{0x0812, 0x00},
++	{0x0813, 0x47},
++	{0x0814, 0x00},
++	{0x0815, 0x37},
++	{0x0816, 0x00},
++	{0x0817, 0xe7},
++	{0x0818, 0x00},
++	{0x0819, 0x2f},
++	{0xe04c, 0x00},
++	{0xe04d, 0x5f},
++	{0xe04e, 0x00},
++	{0xe04f, 0x1f},
++	{0x3e20, 0x01},
++	{0x3e37, 0x00},
++	{0x3f50, 0x00},
++	{0x3f56, 0x00},
++	{0x3f57, 0x96},
++};
++
++/* Mode configs */
++static const struct imx477_mode supported_modes_12bit[] = {
++	{
++		/* 12MPix 10fps mode */
++		.width = 4056,
++		.height = 3040,
++		.line_length_pix = 0x5dc0,
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 4056,
++			.height = 3040,
++		},
++		.timeperframe_min = {
++			.numerator = 100,
++			.denominator = 1000
++		},
++		.timeperframe_default = {
++			.numerator = 100,
++			.denominator = 1000
++		},
++		.reg_list = {
++			.num_of_regs = ARRAY_SIZE(mode_4056x3040_regs),
++			.regs = mode_4056x3040_regs,
++		},
++	},
++	{
++		/* 2x2 binned 40fps mode */
++		.width = 2028,
++		.height = 1520,
++		.line_length_pix = 0x31c4,
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 4056,
++			.height = 3040,
++		},
++		.timeperframe_min = {
++			.numerator = 100,
++			.denominator = 4000
++		},
++		.timeperframe_default = {
++			.numerator = 100,
++			.denominator = 3000
++		},
++		.reg_list = {
++			.num_of_regs = ARRAY_SIZE(mode_2028x1520_regs),
++			.regs = mode_2028x1520_regs,
++		},
++	},
++	{
++		/* 1080p 50fps cropped mode */
++		.width = 2028,
++		.height = 1080,
++		.line_length_pix = 0x31c4,
++		.crop = {
++			.left = 0,
++			.top = 440,
++			.width = 4056,
++			.height = 2600,
++		},
++		.timeperframe_min = {
++			.numerator = 100,
++			.denominator = 5000
++		},
++		.timeperframe_default = {
++			.numerator = 100,
++			.denominator = 3000
++		},
++		.reg_list = {
++			.num_of_regs = ARRAY_SIZE(mode_2028x1080_regs),
++			.regs = mode_2028x1080_regs,
++		},
++	}
++};
++
++static const struct imx477_mode supported_modes_10bit[] = {
++	{
++		/* 720P 120fps. 4x4 binned */
++		.width = 1012,
++		.height = 760,
++		.line_length_pix = 0x1460,
++		.crop = {
++			/*
++			 * FIXME: the analog crop rectangle is actually
++			 * programmed with a horizontal displacement of 0
++			 * pixels, not 4. It gets shrunk after going through
++			 * the scaler. Move this information to the compose
++			 * rectangle once the driver is expanded to represent
++			 * its processing blocks with multiple subdevs.
++			 */
++			.left = 4,
++			.top = 0,
++			.width = 4052,
++			.height = 3040,
++		},
++		.timeperframe_min = {
++			.numerator = 100,
++			.denominator = 12000
++		},
++		.timeperframe_default = {
++			.numerator = 100,
++			.denominator = 60000
++		},
++		.reg_list = {
++			.num_of_regs = ARRAY_SIZE(mode_1012x760_regs),
++			.regs = mode_1012x760_regs,
++		}
++	}
++};
++
++/*
++ * The supported formats.
++ * This table MUST contain 4 entries per format, to cover the various flip
++ * combinations in the order
++ * - no flip
++ * - h flip
++ * - v flip
++ * - h&v flips
++ */
++static const u32 codes[] = {
++	/* 12-bit modes. */
++	MEDIA_BUS_FMT_SRGGB12_1X12,
++	MEDIA_BUS_FMT_SGRBG12_1X12,
++	MEDIA_BUS_FMT_SGBRG12_1X12,
++	MEDIA_BUS_FMT_SBGGR12_1X12,
++	/* 10-bit modes. */
++	MEDIA_BUS_FMT_SRGGB10_1X10,
++	MEDIA_BUS_FMT_SGRBG10_1X10,
++	MEDIA_BUS_FMT_SGBRG10_1X10,
++	MEDIA_BUS_FMT_SBGGR10_1X10,
++};
++
++static const char * const imx477_test_pattern_menu[] = {
++	"Disabled",
++	"Color Bars",
++	"Solid Color",
++	"Grey Color Bars",
++	"PN9"
++};
++
++static const int imx477_test_pattern_val[] = {
++	IMX477_TEST_PATTERN_DISABLE,
++	IMX477_TEST_PATTERN_COLOR_BARS,
++	IMX477_TEST_PATTERN_SOLID_COLOR,
++	IMX477_TEST_PATTERN_GREY_COLOR,
++	IMX477_TEST_PATTERN_PN9,
++};
++
++/* regulator supplies */
++static const char * const imx477_supply_name[] = {
++	/* Supplies can be enabled in any order */
++	"VANA",  /* Analog (2.8V) supply */
++	"VDIG",  /* Digital Core (1.05V) supply */
++	"VDDL",  /* IF (1.8V) supply */
++};
++
++#define IMX477_NUM_SUPPLIES ARRAY_SIZE(imx477_supply_name)
++
++/*
++ * Initialisation delay between XCLR low->high and the moment when the sensor
++ * can start capture (i.e. can leave software standby), given by T7 in the
++ * datasheet is 8ms.  This does include I2C setup time as well.
++ *
++ * Note, that delay between XCLR low->high and reading the CCI ID register (T6
++ * in the datasheet) is much smaller - 600us.
++ */
++#define IMX477_XCLR_MIN_DELAY_US	8000
++#define IMX477_XCLR_DELAY_RANGE_US	1000
++
++struct imx477 {
++	struct v4l2_subdev sd;
++	struct media_pad pad[NUM_PADS];
++
++	struct v4l2_mbus_framefmt fmt;
++
++	struct clk *xclk;
++	u32 xclk_freq;
++
++	struct gpio_desc *reset_gpio;
++	struct regulator_bulk_data supplies[IMX477_NUM_SUPPLIES];
++
++	struct v4l2_ctrl_handler ctrl_handler;
++	/* V4L2 Controls */
++	struct v4l2_ctrl *pixel_rate;
++	struct v4l2_ctrl *exposure;
++	struct v4l2_ctrl *vflip;
++	struct v4l2_ctrl *hflip;
++	struct v4l2_ctrl *vblank;
++	struct v4l2_ctrl *hblank;
++
++	/* Current mode */
++	const struct imx477_mode *mode;
++
++	/*
++	 * Mutex for serialized access:
++	 * Protect sensor module set pad format and start/stop streaming safely.
++	 */
++	struct mutex mutex;
++
++	/* Streaming on/off */
++	bool streaming;
++
++	/* Rewrite common registers on stream on? */
++	bool common_regs_written;
++};
++
++static inline struct imx477 *to_imx477(struct v4l2_subdev *_sd)
++{
++	return container_of(_sd, struct imx477, sd);
++}
++
++static inline void get_mode_table(unsigned int code,
++				  const struct imx477_mode **mode_list,
++				  unsigned int *num_modes)
++{
++	switch (code) {
++	/* 12-bit */
++	case MEDIA_BUS_FMT_SRGGB12_1X12:
++	case MEDIA_BUS_FMT_SGRBG12_1X12:
++	case MEDIA_BUS_FMT_SGBRG12_1X12:
++	case MEDIA_BUS_FMT_SBGGR12_1X12:
++		*mode_list = supported_modes_12bit;
++		*num_modes = ARRAY_SIZE(supported_modes_12bit);
++		break;
++	/* 10-bit */
++	case MEDIA_BUS_FMT_SRGGB10_1X10:
++	case MEDIA_BUS_FMT_SGRBG10_1X10:
++	case MEDIA_BUS_FMT_SGBRG10_1X10:
++	case MEDIA_BUS_FMT_SBGGR10_1X10:
++		*mode_list = supported_modes_10bit;
++		*num_modes = ARRAY_SIZE(supported_modes_10bit);
++		break;
++	default:
++		*mode_list = NULL;
++		*num_modes = 0;
++	}
++}
++
++/* Read registers up to 2 at a time */
++static int imx477_read_reg(struct imx477 *imx477, u16 reg, u32 len, u32 *val)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	struct i2c_msg msgs[2];
++	u8 addr_buf[2] = { reg >> 8, reg & 0xff };
++	u8 data_buf[4] = { 0, };
++	int ret;
++
++	if (len > 4)
++		return -EINVAL;
++
++	/* Write register address */
++	msgs[0].addr = client->addr;
++	msgs[0].flags = 0;
++	msgs[0].len = ARRAY_SIZE(addr_buf);
++	msgs[0].buf = addr_buf;
++
++	/* Read data from register */
++	msgs[1].addr = client->addr;
++	msgs[1].flags = I2C_M_RD;
++	msgs[1].len = len;
++	msgs[1].buf = &data_buf[4 - len];
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++	if (ret != ARRAY_SIZE(msgs))
++		return -EIO;
++
++	*val = get_unaligned_be32(data_buf);
++
++	return 0;
++}
++
++/* Write registers up to 2 at a time */
++static int imx477_write_reg(struct imx477 *imx477, u16 reg, u32 len, u32 val)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	u8 buf[6];
++
++	if (len > 4)
++		return -EINVAL;
++
++	put_unaligned_be16(reg, buf);
++	put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
++	if (i2c_master_send(client, buf, len + 2) != len + 2)
++		return -EIO;
++
++	return 0;
++}
++
++/* Write a list of registers */
++static int imx477_write_regs(struct imx477 *imx477,
++			     const struct imx477_reg *regs, u32 len)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	unsigned int i;
++	int ret;
++
++	for (i = 0; i < len; i++) {
++		ret = imx477_write_reg(imx477, regs[i].address, 1, regs[i].val);
++		if (ret) {
++			dev_err_ratelimited(&client->dev,
++					    "Failed to write reg 0x%4.4x. error = %d\n",
++					    regs[i].address, ret);
++
++			return ret;
++		}
++	}
++
++	return 0;
++}
++
++/* Get bayer order based on flip setting. */
++static u32 imx477_get_format_code(struct imx477 *imx477, u32 code)
++{
++	unsigned int i;
++
++	lockdep_assert_held(&imx477->mutex);
++
++	for (i = 0; i < ARRAY_SIZE(codes); i++)
++		if (codes[i] == code)
++			break;
++
++	if (i >= ARRAY_SIZE(codes))
++		i = 0;
++
++	i = (i & ~3) | (imx477->vflip->val ? 2 : 0) |
++	    (imx477->hflip->val ? 1 : 0);
++
++	return codes[i];
++}
++
++static void imx477_set_default_format(struct imx477 *imx477)
++{
++	struct v4l2_mbus_framefmt *fmt = &imx477->fmt;
++
++	/* Set default mode to max resolution */
++	imx477->mode = &supported_modes_12bit[0];
++
++	fmt->code = MEDIA_BUS_FMT_SRGGB12_1X12;
++	fmt->colorspace = V4L2_COLORSPACE_SRGB;
++	fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
++	fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
++							  fmt->colorspace,
++							  fmt->ycbcr_enc);
++	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
++	fmt->width = imx477->mode->width;
++	fmt->height = imx477->mode->height;
++	fmt->field = V4L2_FIELD_NONE;
++}
++
++static int imx477_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
++{
++	struct imx477 *imx477 = to_imx477(sd);
++	struct v4l2_mbus_framefmt *try_fmt_img =
++		v4l2_subdev_get_try_format(sd, fh->pad, IMAGE_PAD);
++	struct v4l2_mbus_framefmt *try_fmt_meta =
++		v4l2_subdev_get_try_format(sd, fh->pad, METADATA_PAD);
++	struct v4l2_rect *try_crop;
++
++	mutex_lock(&imx477->mutex);
++
++	/* Initialize try_fmt for the image pad */
++	try_fmt_img->width = supported_modes_12bit[0].width;
++	try_fmt_img->height = supported_modes_12bit[0].height;
++	try_fmt_img->code = imx477_get_format_code(imx477,
++						   MEDIA_BUS_FMT_SRGGB12_1X12);
++	try_fmt_img->field = V4L2_FIELD_NONE;
++
++	/* Initialize try_fmt for the embedded metadata pad */
++	try_fmt_meta->width = IMX477_EMBEDDED_LINE_WIDTH;
++	try_fmt_meta->height = IMX477_NUM_EMBEDDED_LINES;
++	try_fmt_meta->code = MEDIA_BUS_FMT_SENSOR_DATA;
++	try_fmt_meta->field = V4L2_FIELD_NONE;
++
++	/* Initialize try_crop */
++	try_crop = v4l2_subdev_get_try_crop(sd, fh->pad, IMAGE_PAD);
++	try_crop->left = IMX477_PIXEL_ARRAY_LEFT;
++	try_crop->top = IMX477_PIXEL_ARRAY_TOP;
++	try_crop->width = IMX477_PIXEL_ARRAY_WIDTH;
++	try_crop->height = IMX477_PIXEL_ARRAY_HEIGHT;
++
++	mutex_unlock(&imx477->mutex);
++
++	return 0;
++}
++
++static int imx477_set_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct imx477 *imx477 =
++		container_of(ctrl->handler, struct imx477, ctrl_handler);
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	int ret = 0;
++
++	if (ctrl->id == V4L2_CID_VBLANK) {
++		int exposure_max, exposure_def;
++
++		/* Update max exposure while meeting expected vblanking */
++		exposure_max = imx477->mode->height + ctrl->val -
++							IMX477_EXPOSURE_OFFSET;
++		exposure_def = min(exposure_max, imx477->exposure->val);
++		__v4l2_ctrl_modify_range(imx477->exposure,
++					 imx477->exposure->minimum,
++					 exposure_max, imx477->exposure->step,
++					 exposure_def);
++	}
++
++	/*
++	 * Applying V4L2 control value only happens
++	 * when power is up for streaming
++	 */
++	if (pm_runtime_get_if_in_use(&client->dev) == 0)
++		return 0;
++
++	switch (ctrl->id) {
++	case V4L2_CID_ANALOGUE_GAIN:
++		ret = imx477_write_reg(imx477, IMX477_REG_ANALOG_GAIN,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_EXPOSURE:
++		ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_DIGITAL_GAIN:
++		ret = imx477_write_reg(imx477, IMX477_REG_DIGITAL_GAIN,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_TEST_PATTERN:
++		ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN,
++				       IMX477_REG_VALUE_16BIT,
++				       imx477_test_pattern_val[ctrl->val]);
++		break;
++	case V4L2_CID_TEST_PATTERN_RED:
++		ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_R,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_TEST_PATTERN_GREENR:
++		ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_GR,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_TEST_PATTERN_BLUE:
++		ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_B,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_TEST_PATTERN_GREENB:
++		ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_GB,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		break;
++	case V4L2_CID_HFLIP:
++	case V4L2_CID_VFLIP:
++		ret = imx477_write_reg(imx477, IMX477_REG_ORIENTATION, 1,
++				       imx477->hflip->val |
++				       imx477->vflip->val << 1);
++		break;
++	case V4L2_CID_VBLANK:
++		ret = imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH,
++				       IMX477_REG_VALUE_16BIT,
++				       imx477->mode->height + ctrl->val);
++		break;
++	default:
++		dev_info(&client->dev,
++			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
++			 ctrl->id, ctrl->val);
++		ret = -EINVAL;
++		break;
++	}
++
++	pm_runtime_put(&client->dev);
++
++	return ret;
++}
++
++static const struct v4l2_ctrl_ops imx477_ctrl_ops = {
++	.s_ctrl = imx477_set_ctrl,
++};
++
++static int imx477_enum_mbus_code(struct v4l2_subdev *sd,
++				 struct v4l2_subdev_pad_config *cfg,
++				 struct v4l2_subdev_mbus_code_enum *code)
++{
++	struct imx477 *imx477 = to_imx477(sd);
++
++	if (code->pad >= NUM_PADS)
++		return -EINVAL;
++
++	if (code->pad == IMAGE_PAD) {
++		if (code->index >= (ARRAY_SIZE(codes) / 4))
++			return -EINVAL;
++
++		code->code = imx477_get_format_code(imx477,
++						    codes[code->index * 4]);
++	} else {
++		if (code->index > 0)
++			return -EINVAL;
++
++		code->code = MEDIA_BUS_FMT_SENSOR_DATA;
++	}
++
++	return 0;
++}
++
++static int imx477_enum_frame_size(struct v4l2_subdev *sd,
++				  struct v4l2_subdev_pad_config *cfg,
++				  struct v4l2_subdev_frame_size_enum *fse)
++{
++	struct imx477 *imx477 = to_imx477(sd);
++
++	if (fse->pad >= NUM_PADS)
++		return -EINVAL;
++
++	if (fse->pad == IMAGE_PAD) {
++		const struct imx477_mode *mode_list;
++		unsigned int num_modes;
++
++		get_mode_table(fse->code, &mode_list, &num_modes);
++
++		if (fse->index >= num_modes)
++			return -EINVAL;
++
++		if (fse->code != imx477_get_format_code(imx477, fse->code))
++			return -EINVAL;
++
++		fse->min_width = mode_list[fse->index].width;
++		fse->max_width = fse->min_width;
++		fse->min_height = mode_list[fse->index].height;
++		fse->max_height = fse->min_height;
++	} else {
++		if (fse->code != MEDIA_BUS_FMT_SENSOR_DATA || fse->index > 0)
++			return -EINVAL;
++
++		fse->min_width = IMX477_EMBEDDED_LINE_WIDTH;
++		fse->max_width = fse->min_width;
++		fse->min_height = IMX477_NUM_EMBEDDED_LINES;
++		fse->max_height = fse->min_height;
++	}
++
++	return 0;
++}
++
++static void imx477_reset_colorspace(struct v4l2_mbus_framefmt *fmt)
++{
++	fmt->colorspace = V4L2_COLORSPACE_SRGB;
++	fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
++	fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
++							  fmt->colorspace,
++							  fmt->ycbcr_enc);
++	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
++}
++
++static void imx477_update_image_pad_format(struct imx477 *imx477,
++					   const struct imx477_mode *mode,
++					   struct v4l2_subdev_format *fmt)
++{
++	fmt->format.width = mode->width;
++	fmt->format.height = mode->height;
++	fmt->format.field = V4L2_FIELD_NONE;
++	imx477_reset_colorspace(&fmt->format);
++}
++
++static void imx477_update_metadata_pad_format(struct v4l2_subdev_format *fmt)
++{
++	fmt->format.width = IMX477_EMBEDDED_LINE_WIDTH;
++	fmt->format.height = IMX477_NUM_EMBEDDED_LINES;
++	fmt->format.code = MEDIA_BUS_FMT_SENSOR_DATA;
++	fmt->format.field = V4L2_FIELD_NONE;
++}
++
++static int imx477_get_pad_format(struct v4l2_subdev *sd,
++				 struct v4l2_subdev_pad_config *cfg,
++				 struct v4l2_subdev_format *fmt)
++{
++	struct imx477 *imx477 = to_imx477(sd);
++
++	if (fmt->pad >= NUM_PADS)
++		return -EINVAL;
++
++	mutex_lock(&imx477->mutex);
++
++	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++		struct v4l2_mbus_framefmt *try_fmt =
++			v4l2_subdev_get_try_format(&imx477->sd, cfg, fmt->pad);
++		/* update the code which could change due to vflip or hflip: */
++		try_fmt->code = fmt->pad == IMAGE_PAD ?
++				imx477_get_format_code(imx477, try_fmt->code) :
++				MEDIA_BUS_FMT_SENSOR_DATA;
++		fmt->format = *try_fmt;
++	} else {
++		if (fmt->pad == IMAGE_PAD) {
++			imx477_update_image_pad_format(imx477, imx477->mode,
++						       fmt);
++			fmt->format.code =
++			       imx477_get_format_code(imx477, imx477->fmt.code);
++		} else {
++			imx477_update_metadata_pad_format(fmt);
++		}
++	}
++
++	mutex_unlock(&imx477->mutex);
++	return 0;
++}
++
++static
++unsigned int imx477_get_frame_length(const struct imx477_mode *mode,
++				     const struct v4l2_fract *timeperframe)
++{
++	u64 frame_length;
++
++	frame_length = (u64)timeperframe->numerator * IMX477_PIXEL_RATE;
++	do_div(frame_length,
++	       (u64)timeperframe->denominator * mode->line_length_pix);
++
++	if (WARN_ON(frame_length > IMX477_FRAME_LENGTH_MAX))
++		frame_length = IMX477_FRAME_LENGTH_MAX;
++
++	return max_t(unsigned int, frame_length, mode->height);
++}
++
++static void imx477_set_framing_limits(struct imx477 *imx477)
++{
++	const struct imx477_mode *mode = imx477->mode;
++	unsigned int frm_length_min, frm_length_default;
++	unsigned int exposure_max, exposure_def, hblank;
++
++	frm_length_min = imx477_get_frame_length(mode, &mode->timeperframe_min);
++	frm_length_default =
++		     imx477_get_frame_length(mode, &mode->timeperframe_default);
++
++	/* Update limits and set FPS to default */
++	__v4l2_ctrl_modify_range(imx477->vblank, frm_length_min - mode->height,
++				 IMX477_FRAME_LENGTH_MAX - mode->height,
++				 1, frm_length_default - mode->height);
++	__v4l2_ctrl_s_ctrl(imx477->vblank, frm_length_default - mode->height);
++
++	/* Update max exposure while meeting expected vblanking */
++	exposure_max = IMX477_FRAME_LENGTH_MAX - IMX477_EXPOSURE_OFFSET;
++	exposure_def = frm_length_default - mode->height -
++					    IMX477_EXPOSURE_OFFSET;
++	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
++				 exposure_max, imx477->exposure->step,
++				 exposure_def);
++	/*
++	 * Currently PPL is fixed to the mode specified value, so hblank
++	 * depends on mode->width only, and is not changeable in any
++	 * way other than changing the mode.
++	 */
++	hblank = mode->line_length_pix - mode->width;
++	__v4l2_ctrl_modify_range(imx477->hblank, hblank, hblank, 1, hblank);
++}
++
++static int imx477_set_pad_format(struct v4l2_subdev *sd,
++				 struct v4l2_subdev_pad_config *cfg,
++				 struct v4l2_subdev_format *fmt)
++{
++	struct v4l2_mbus_framefmt *framefmt;
++	const struct imx477_mode *mode;
++	struct imx477 *imx477 = to_imx477(sd);
++
++	if (fmt->pad >= NUM_PADS)
++		return -EINVAL;
++
++	mutex_lock(&imx477->mutex);
++
++	if (fmt->pad == IMAGE_PAD) {
++		const struct imx477_mode *mode_list;
++		unsigned int num_modes;
++
++		/* Bayer order varies with flips */
++		fmt->format.code = imx477_get_format_code(imx477,
++							  fmt->format.code);
++
++		get_mode_table(fmt->format.code, &mode_list, &num_modes);
++
++		mode = v4l2_find_nearest_size(mode_list,
++					      num_modes,
++					      width, height,
++					      fmt->format.width,
++					      fmt->format.height);
++		imx477_update_image_pad_format(imx477, mode, fmt);
++		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++			framefmt = v4l2_subdev_get_try_format(sd, cfg,
++							      fmt->pad);
++			*framefmt = fmt->format;
++		} else {
++			imx477->mode = mode;
++			imx477_set_framing_limits(imx477);
++		}
++	} else {
++		if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++			framefmt = v4l2_subdev_get_try_format(sd, cfg,
++							      fmt->pad);
++			*framefmt = fmt->format;
++		} else {
++			/* Only one embedded data mode is supported */
++			imx477_update_metadata_pad_format(fmt);
++		}
++	}
++
++	mutex_unlock(&imx477->mutex);
++
++	return 0;
++}
++
++static const struct v4l2_rect *
++__imx477_get_pad_crop(struct imx477 *imx477, struct v4l2_subdev_pad_config *cfg,
++		      unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++	switch (which) {
++	case V4L2_SUBDEV_FORMAT_TRY:
++		return v4l2_subdev_get_try_crop(&imx477->sd, cfg, pad);
++	case V4L2_SUBDEV_FORMAT_ACTIVE:
++		return &imx477->mode->crop;
++	}
++
++	return NULL;
++}
++
++static int imx477_get_selection(struct v4l2_subdev *sd,
++				struct v4l2_subdev_pad_config *cfg,
++				struct v4l2_subdev_selection *sel)
++{
++	switch (sel->target) {
++	case V4L2_SEL_TGT_CROP: {
++		struct imx477 *imx477 = to_imx477(sd);
++
++		mutex_lock(&imx477->mutex);
++		sel->r = *__imx477_get_pad_crop(imx477, cfg, sel->pad,
++						sel->which);
++		mutex_unlock(&imx477->mutex);
++
++		return 0;
++	}
++
++	case V4L2_SEL_TGT_NATIVE_SIZE:
++		sel->r.left = 0;
++		sel->r.top = 0;
++		sel->r.width = IMX477_NATIVE_WIDTH;
++		sel->r.height = IMX477_NATIVE_HEIGHT;
++
++		return 0;
++
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++		sel->r.left = IMX477_PIXEL_ARRAY_LEFT;
++		sel->r.top = IMX477_PIXEL_ARRAY_TOP;
++		sel->r.width = IMX477_PIXEL_ARRAY_WIDTH;
++		sel->r.height = IMX477_PIXEL_ARRAY_HEIGHT;
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++/* Start streaming */
++static int imx477_start_streaming(struct imx477 *imx477)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	const struct imx477_reg_list *reg_list;
++	int ret;
++
++	if (!imx477->common_regs_written) {
++		ret = imx477_write_regs(imx477, mode_common_regs,
++					ARRAY_SIZE(mode_common_regs));
++		if (ret) {
++			dev_err(&client->dev, "%s failed to set common settings\n",
++				__func__);
++			return ret;
++		}
++		imx477->common_regs_written = true;
++	}
++
++	/* Apply default values of current mode */
++	reg_list = &imx477->mode->reg_list;
++	ret = imx477_write_regs(imx477, reg_list->regs, reg_list->num_of_regs);
++	if (ret) {
++		dev_err(&client->dev, "%s failed to set mode\n", __func__);
++		return ret;
++	}
++
++	/* Apply customized values from user */
++	ret =  __v4l2_ctrl_handler_setup(imx477->sd.ctrl_handler);
++	if (ret)
++		return ret;
++
++	/* set stream on register */
++	return imx477_write_reg(imx477, IMX477_REG_MODE_SELECT,
++				IMX477_REG_VALUE_08BIT, IMX477_MODE_STREAMING);
++}
++
++/* Stop streaming */
++static void imx477_stop_streaming(struct imx477 *imx477)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	int ret;
++
++	/* set stream off register */
++	ret = imx477_write_reg(imx477, IMX477_REG_MODE_SELECT,
++			       IMX477_REG_VALUE_08BIT, IMX477_MODE_STANDBY);
++	if (ret)
++		dev_err(&client->dev, "%s failed to set stream\n", __func__);
++}
++
++static int imx477_set_stream(struct v4l2_subdev *sd, int enable)
++{
++	struct imx477 *imx477 = to_imx477(sd);
++	struct i2c_client *client = v4l2_get_subdevdata(sd);
++	int ret = 0;
++
++	mutex_lock(&imx477->mutex);
++	if (imx477->streaming == enable) {
++		mutex_unlock(&imx477->mutex);
++		return 0;
++	}
++
++	if (enable) {
++		ret = pm_runtime_get_sync(&client->dev);
++		if (ret < 0) {
++			pm_runtime_put_noidle(&client->dev);
++			goto err_unlock;
++		}
++
++		/*
++		 * Apply default & customized values
++		 * and then start streaming.
++		 */
++		ret = imx477_start_streaming(imx477);
++		if (ret)
++			goto err_rpm_put;
++	} else {
++		imx477_stop_streaming(imx477);
++		pm_runtime_put(&client->dev);
++	}
++
++	imx477->streaming = enable;
++
++	/* vflip and hflip cannot change during streaming */
++	__v4l2_ctrl_grab(imx477->vflip, enable);
++	__v4l2_ctrl_grab(imx477->hflip, enable);
++
++	mutex_unlock(&imx477->mutex);
++
++	return ret;
++
++err_rpm_put:
++	pm_runtime_put(&client->dev);
++err_unlock:
++	mutex_unlock(&imx477->mutex);
++
++	return ret;
++}
++
++/* Power/clock management functions */
++static int imx477_power_on(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct imx477 *imx477 = to_imx477(sd);
++	int ret;
++
++	ret = regulator_bulk_enable(IMX477_NUM_SUPPLIES,
++				    imx477->supplies);
++	if (ret) {
++		dev_err(&client->dev, "%s: failed to enable regulators\n",
++			__func__);
++		return ret;
++	}
++
++	ret = clk_prepare_enable(imx477->xclk);
++	if (ret) {
++		dev_err(&client->dev, "%s: failed to enable clock\n",
++			__func__);
++		goto reg_off;
++	}
++
++	gpiod_set_value_cansleep(imx477->reset_gpio, 1);
++	usleep_range(IMX477_XCLR_MIN_DELAY_US,
++		     IMX477_XCLR_MIN_DELAY_US + IMX477_XCLR_DELAY_RANGE_US);
++
++	return 0;
++
++reg_off:
++	regulator_bulk_disable(IMX477_NUM_SUPPLIES, imx477->supplies);
++	return ret;
++}
++
++static int imx477_power_off(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct imx477 *imx477 = to_imx477(sd);
++
++	gpiod_set_value_cansleep(imx477->reset_gpio, 0);
++	regulator_bulk_disable(IMX477_NUM_SUPPLIES, imx477->supplies);
++	clk_disable_unprepare(imx477->xclk);
++
++	/* Force reprogramming of the common registers when powered up again. */
++	imx477->common_regs_written = false;
++
++	return 0;
++}
++
++static int __maybe_unused imx477_suspend(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct imx477 *imx477 = to_imx477(sd);
++
++	if (imx477->streaming)
++		imx477_stop_streaming(imx477);
++
++	return 0;
++}
++
++static int __maybe_unused imx477_resume(struct device *dev)
++{
++	struct i2c_client *client = to_i2c_client(dev);
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct imx477 *imx477 = to_imx477(sd);
++	int ret;
++
++	if (imx477->streaming) {
++		ret = imx477_start_streaming(imx477);
++		if (ret)
++			goto error;
++	}
++
++	return 0;
++
++error:
++	imx477_stop_streaming(imx477);
++	imx477->streaming = 0;
++	return ret;
++}
++
++static int imx477_get_regulators(struct imx477 *imx477)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	unsigned int i;
++
++	for (i = 0; i < IMX477_NUM_SUPPLIES; i++)
++		imx477->supplies[i].supply = imx477_supply_name[i];
++
++	return devm_regulator_bulk_get(&client->dev,
++				       IMX477_NUM_SUPPLIES,
++				       imx477->supplies);
++}
++
++/* Verify chip ID */
++static int imx477_identify_module(struct imx477 *imx477)
++{
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	int ret;
++	u32 val;
++
++	ret = imx477_read_reg(imx477, IMX477_REG_CHIP_ID,
++			      IMX477_REG_VALUE_16BIT, &val);
++	if (ret) {
++		dev_err(&client->dev, "failed to read chip id %x, with error %d\n",
++			IMX477_CHIP_ID, ret);
++		return ret;
++	}
++
++	if (val != IMX477_CHIP_ID) {
++		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
++			IMX477_CHIP_ID, val);
++		ret = -EINVAL;
++	}
++
++	return 0;
++}
++
++static const struct v4l2_subdev_core_ops imx477_core_ops = {
++	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
++	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
++};
++
++static const struct v4l2_subdev_video_ops imx477_video_ops = {
++	.s_stream = imx477_set_stream,
++};
++
++static const struct v4l2_subdev_pad_ops imx477_pad_ops = {
++	.enum_mbus_code = imx477_enum_mbus_code,
++	.get_fmt = imx477_get_pad_format,
++	.set_fmt = imx477_set_pad_format,
++	.get_selection = imx477_get_selection,
++	.enum_frame_size = imx477_enum_frame_size,
++};
++
++static const struct v4l2_subdev_ops imx477_subdev_ops = {
++	.core = &imx477_core_ops,
++	.video = &imx477_video_ops,
++	.pad = &imx477_pad_ops,
++};
++
++static const struct v4l2_subdev_internal_ops imx477_internal_ops = {
++	.open = imx477_open,
++};
++
++/* Initialize control handlers */
++static int imx477_init_controls(struct imx477 *imx477)
++{
++	struct v4l2_ctrl_handler *ctrl_hdlr;
++	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	unsigned int i;
++	int ret;
++
++	ctrl_hdlr = &imx477->ctrl_handler;
++	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 14);
++	if (ret)
++		return ret;
++
++	mutex_init(&imx477->mutex);
++	ctrl_hdlr->lock = &imx477->mutex;
++
++	/* By default, PIXEL_RATE is read only */
++	imx477->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					       V4L2_CID_PIXEL_RATE,
++					       IMX477_PIXEL_RATE,
++					       IMX477_PIXEL_RATE, 1,
++					       IMX477_PIXEL_RATE);
++
++	/*
++	 * Create the controls here, but mode specific limits are setup
++	 * in the imx477_set_framing_limits() call below.
++	 */
++	imx477->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					   V4L2_CID_VBLANK, 0, 0xffff, 1, 0);
++	imx477->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					   V4L2_CID_HBLANK, 0, 0xffff, 1, 0);
++
++	/* HBLANK is read-only for now, but does change with mode. */
++	if (imx477->hblank)
++		imx477->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
++
++	imx477->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					     V4L2_CID_EXPOSURE,
++					     IMX477_EXPOSURE_MIN,
++					     IMX477_EXPOSURE_MAX,
++					     IMX477_EXPOSURE_STEP,
++					     IMX477_EXPOSURE_DEFAULT);
++
++	v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
++			  IMX477_ANA_GAIN_MIN, IMX477_ANA_GAIN_MAX,
++			  IMX477_ANA_GAIN_STEP, IMX477_ANA_GAIN_DEFAULT);
++
++	v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
++			  IMX477_DGTL_GAIN_MIN, IMX477_DGTL_GAIN_MAX,
++			  IMX477_DGTL_GAIN_STEP, IMX477_DGTL_GAIN_DEFAULT);
++
++	imx477->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					  V4L2_CID_HFLIP, 0, 1, 1, 0);
++	if (imx477->hflip)
++		imx477->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
++
++	imx477->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					  V4L2_CID_VFLIP, 0, 1, 1, 0);
++	if (imx477->vflip)
++		imx477->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
++
++	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx477_ctrl_ops,
++				     V4L2_CID_TEST_PATTERN,
++				     ARRAY_SIZE(imx477_test_pattern_menu) - 1,
++				     0, 0, imx477_test_pattern_menu);
++	for (i = 0; i < 4; i++) {
++		/*
++		 * The assumption is that
++		 * V4L2_CID_TEST_PATTERN_GREENR == V4L2_CID_TEST_PATTERN_RED + 1
++		 * V4L2_CID_TEST_PATTERN_BLUE   == V4L2_CID_TEST_PATTERN_RED + 2
++		 * V4L2_CID_TEST_PATTERN_GREENB == V4L2_CID_TEST_PATTERN_RED + 3
++		 */
++		v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++				  V4L2_CID_TEST_PATTERN_RED + i,
++				  IMX477_TEST_PATTERN_COLOUR_MIN,
++				  IMX477_TEST_PATTERN_COLOUR_MAX,
++				  IMX477_TEST_PATTERN_COLOUR_STEP,
++				  IMX477_TEST_PATTERN_COLOUR_MAX);
++		/* The "Solid color" pattern is white by default */
++	}
++
++	if (ctrl_hdlr->error) {
++		ret = ctrl_hdlr->error;
++		dev_err(&client->dev, "%s control init failed (%d)\n",
++			__func__, ret);
++		goto error;
++	}
++
++	imx477->sd.ctrl_handler = ctrl_hdlr;
++
++	/* Setup exposure and frame/line length limits. */
++	imx477_set_framing_limits(imx477);
++
++	return 0;
++
++error:
++	v4l2_ctrl_handler_free(ctrl_hdlr);
++	mutex_destroy(&imx477->mutex);
++
++	return ret;
++}
++
++static void imx477_free_controls(struct imx477 *imx477)
++{
++	v4l2_ctrl_handler_free(imx477->sd.ctrl_handler);
++	mutex_destroy(&imx477->mutex);
++}
++
++static int imx477_check_hwcfg(struct device *dev)
++{
++	struct fwnode_handle *endpoint;
++	struct v4l2_fwnode_endpoint ep_cfg = {
++		.bus_type = V4L2_MBUS_CSI2_DPHY
++	};
++	int ret = -EINVAL;
++
++	endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
++	if (!endpoint) {
++		dev_err(dev, "endpoint node not found\n");
++		return -EINVAL;
++	}
++
++	if (v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep_cfg)) {
++		dev_err(dev, "could not parse endpoint\n");
++		goto error_out;
++	}
++
++	/* Check the number of MIPI CSI2 data lanes */
++	if (ep_cfg.bus.mipi_csi2.num_data_lanes != 2) {
++		dev_err(dev, "only 2 data lanes are currently supported\n");
++		goto error_out;
++	}
++
++	/* Check the link frequency set in device tree */
++	if (!ep_cfg.nr_of_link_frequencies) {
++		dev_err(dev, "link-frequency property not found in DT\n");
++		goto error_out;
++	}
++
++	if (ep_cfg.nr_of_link_frequencies != 1 ||
++	    ep_cfg.link_frequencies[0] != IMX477_DEFAULT_LINK_FREQ) {
++		dev_err(dev, "Link frequency not supported: %lld\n",
++			ep_cfg.link_frequencies[0]);
++		goto error_out;
++	}
++
++	ret = 0;
++
++error_out:
++	v4l2_fwnode_endpoint_free(&ep_cfg);
++	fwnode_handle_put(endpoint);
++
++	return ret;
++}
++
++static int imx477_probe(struct i2c_client *client)
++{
++	struct device *dev = &client->dev;
++	struct imx477 *imx477;
++	int ret;
++
++	imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL);
++	if (!imx477)
++		return -ENOMEM;
++
++	v4l2_i2c_subdev_init(&imx477->sd, client, &imx477_subdev_ops);
++
++	/* Check the hardware configuration in device tree */
++	if (imx477_check_hwcfg(dev))
++		return -EINVAL;
++
++	/* Get system clock (xclk) */
++	imx477->xclk = devm_clk_get(dev, NULL);
++	if (IS_ERR(imx477->xclk)) {
++		dev_err(dev, "failed to get xclk\n");
++		return PTR_ERR(imx477->xclk);
++	}
++
++	imx477->xclk_freq = clk_get_rate(imx477->xclk);
++	if (imx477->xclk_freq != IMX477_XCLK_FREQ) {
++		dev_err(dev, "xclk frequency not supported: %d Hz\n",
++			imx477->xclk_freq);
++		return -EINVAL;
++	}
++
++	ret = imx477_get_regulators(imx477);
++	if (ret) {
++		dev_err(dev, "failed to get regulators\n");
++		return ret;
++	}
++
++	/* Request optional enable pin */
++	imx477->reset_gpio = devm_gpiod_get_optional(dev, "reset",
++						     GPIOD_OUT_HIGH);
++
++	/*
++	 * The sensor must be powered for imx477_identify_module()
++	 * to be able to read the CHIP_ID register
++	 */
++	ret = imx477_power_on(dev);
++	if (ret)
++		return ret;
++
++	ret = imx477_identify_module(imx477);
++	if (ret)
++		goto error_power_off;
++
++	/* Initialize default format */
++	imx477_set_default_format(imx477);
++
++	/* Enable runtime PM and turn off the device */
++	pm_runtime_set_active(dev);
++	pm_runtime_enable(dev);
++	pm_runtime_idle(dev);
++
++	/* This needs the pm runtime to be registered. */
++	ret = imx477_init_controls(imx477);
++	if (ret)
++		goto error_power_off;
++
++	/* Initialize subdev */
++	imx477->sd.internal_ops = &imx477_internal_ops;
++	imx477->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
++			    V4L2_SUBDEV_FL_HAS_EVENTS;
++	imx477->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
++
++	/* Initialize source pads */
++	imx477->pad[IMAGE_PAD].flags = MEDIA_PAD_FL_SOURCE;
++	imx477->pad[METADATA_PAD].flags = MEDIA_PAD_FL_SOURCE;
++
++	ret = media_entity_pads_init(&imx477->sd.entity, NUM_PADS, imx477->pad);
++	if (ret) {
++		dev_err(dev, "failed to init entity pads: %d\n", ret);
++		goto error_handler_free;
++	}
++
++	ret = v4l2_async_register_subdev_sensor_common(&imx477->sd);
++	if (ret < 0) {
++		dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
++		goto error_media_entity;
++	}
++
++	return 0;
++
++error_media_entity:
++	media_entity_cleanup(&imx477->sd.entity);
++
++error_handler_free:
++	imx477_free_controls(imx477);
++
++error_power_off:
++	pm_runtime_disable(&client->dev);
++	pm_runtime_set_suspended(&client->dev);
++	imx477_power_off(&client->dev);
++
++	return ret;
++}
++
++static int imx477_remove(struct i2c_client *client)
++{
++	struct v4l2_subdev *sd = i2c_get_clientdata(client);
++	struct imx477 *imx477 = to_imx477(sd);
++
++	v4l2_async_unregister_subdev(sd);
++	media_entity_cleanup(&sd->entity);
++	imx477_free_controls(imx477);
++
++	pm_runtime_disable(&client->dev);
++	if (!pm_runtime_status_suspended(&client->dev))
++		imx477_power_off(&client->dev);
++	pm_runtime_set_suspended(&client->dev);
++
++	return 0;
++}
++
++static const struct of_device_id imx477_dt_ids[] = {
++	{ .compatible = "sony,imx477" },
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, imx477_dt_ids);
++
++static const struct dev_pm_ops imx477_pm_ops = {
++	SET_SYSTEM_SLEEP_PM_OPS(imx477_suspend, imx477_resume)
++	SET_RUNTIME_PM_OPS(imx477_power_off, imx477_power_on, NULL)
++};
++
++static struct i2c_driver imx477_i2c_driver = {
++	.driver = {
++		.name = "imx477",
++		.of_match_table	= imx477_dt_ids,
++		.pm = &imx477_pm_ops,
++	},
++	.probe_new = imx477_probe,
++	.remove = imx477_remove,
++};
++
++module_i2c_driver(imx477_i2c_driver);
++
++MODULE_AUTHOR("Naushir Patuck <naush@raspberrypi.com>");
++MODULE_DESCRIPTION("Sony IMX477 sensor driver");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0324-media-i2c-imx477-Add-support-for-adaptive-frame-cont.patch b/target/linux/bcm27xx/patches-5.10/950-0324-media-i2c-imx477-Add-support-for-adaptive-frame-cont.patch
new file mode 100644
index 0000000000..530ce647b4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0324-media-i2c-imx477-Add-support-for-adaptive-frame-cont.patch
@@ -0,0 +1,182 @@
+From bb77f5ad580f08b0b60579370ad176a23960364a Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 8 May 2020 09:41:17 +0100
+Subject: [PATCH] media: i2c: imx477: Add support for adaptive frame
+ control
+
+Use V4L2_CID_EXPOSURE_AUTO_PRIORITY to control if the driver should
+automatically adjust the sensor frame length based on exposure time,
+allowing variable frame rates and longer exposures.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 113 +++++++++++++++++++++++++++++--------
+ 1 file changed, 91 insertions(+), 22 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1082,6 +1082,8 @@ struct imx477 {
+ 	struct v4l2_ctrl *hflip;
+ 	struct v4l2_ctrl *vblank;
+ 	struct v4l2_ctrl *hblank;
++	/* This ctrl allows automatic variable framerate */
++	struct v4l2_ctrl *exposure_auto;
+ 
+ 	/* Current mode */
+ 	const struct imx477_mode *mode;
+@@ -1278,6 +1280,72 @@ static int imx477_open(struct v4l2_subde
+ 	return 0;
+ }
+ 
++static int imx477_set_exposure(struct imx477 *imx477, unsigned int val)
++{
++	int ret;
++
++	ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
++			       IMX477_REG_VALUE_16BIT, val);
++
++	/* Setup the frame length in the case of auto framerate mode. */
++	if (imx477->exposure_auto->val) {
++		unsigned int frame_length, frame_length_max, frame_length_min;
++
++		frame_length_min = imx477->vblank->minimum +
++				   imx477->mode->height;
++		frame_length_max = imx477->vblank->maximum +
++				   imx477->mode->height;
++		frame_length = max(frame_length_min,
++				   val + IMX477_EXPOSURE_OFFSET);
++		frame_length = min(frame_length_max, frame_length);
++		ret += imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH,
++					IMX477_REG_VALUE_16BIT, frame_length);
++	}
++
++	return ret;
++}
++
++static void imx477_adjust_exposure_range(struct imx477 *imx477,
++					 struct v4l2_ctrl *ctrl)
++{
++	int exposure_max, exposure_def;
++
++	if (ctrl->id == V4L2_CID_VBLANK || !ctrl->val) {
++		/*
++		 * Either VBLANK has been changed or auto framerate
++		 * adjusting has been disabled. Honour the VBLANK limits
++		 * when setting exposure.
++		 */
++		exposure_max = imx477->mode->height + imx477->vblank->val -
++						      IMX477_EXPOSURE_OFFSET;
++
++		if (ctrl->id == V4L2_CID_EXPOSURE_AUTO_PRIORITY) {
++			/*
++			 * Allow VBLANK adjustments since the driver is not
++			 * handling frame length control automatically.
++			 */
++			__v4l2_ctrl_grab(imx477->vblank, false);
++		}
++	} else {
++		/*
++		 * Auto framerate adjusting has been enabled. VBLANK
++		 * ctrl has been disabled and exposure can ramp up
++		 * to the maximum allowable value.
++		 */
++		exposure_max = IMX477_EXPOSURE_MAX;
++		/*
++		 * Do not allow VBLANK adjustments if the driver is
++		 * handling it frame length control automatically.
++		 */
++		__v4l2_ctrl_grab(imx477->vblank, true);
++	}
++
++	exposure_def = min(exposure_max, imx477->exposure->val);
++	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
++				 exposure_max, imx477->exposure->step,
++				 exposure_def);
++}
++
+ static int imx477_set_ctrl(struct v4l2_ctrl *ctrl)
+ {
+ 	struct imx477 *imx477 =
+@@ -1285,17 +1353,13 @@ static int imx477_set_ctrl(struct v4l2_c
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	int ret = 0;
+ 
+-	if (ctrl->id == V4L2_CID_VBLANK) {
+-		int exposure_max, exposure_def;
+-
+-		/* Update max exposure while meeting expected vblanking */
+-		exposure_max = imx477->mode->height + ctrl->val -
+-							IMX477_EXPOSURE_OFFSET;
+-		exposure_def = min(exposure_max, imx477->exposure->val);
+-		__v4l2_ctrl_modify_range(imx477->exposure,
+-					 imx477->exposure->minimum,
+-					 exposure_max, imx477->exposure->step,
+-					 exposure_def);
++	if (ctrl->id == V4L2_CID_VBLANK ||
++	    ctrl->id == V4L2_CID_EXPOSURE_AUTO_PRIORITY) {
++		/*
++		 * These controls may change the limits of usable exposure,
++		 * so check and adjust if necessary.
++		 */
++		imx477_adjust_exposure_range(imx477, ctrl);
+ 	}
+ 
+ 	/*
+@@ -1311,8 +1375,14 @@ static int imx477_set_ctrl(struct v4l2_c
+ 				       IMX477_REG_VALUE_16BIT, ctrl->val);
+ 		break;
+ 	case V4L2_CID_EXPOSURE:
+-		ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
+-				       IMX477_REG_VALUE_16BIT, ctrl->val);
++		ret = imx477_set_exposure(imx477, ctrl->val);
++		break;
++	case V4L2_CID_EXPOSURE_AUTO_PRIORITY:
++		/*
++		 * imx477_set_exposure() will recalculate the frame length
++		 * to adjust the framerate to match the exposure.
++		 */
++		ret = imx477_set_exposure(imx477, imx477->exposure->val);
+ 		break;
+ 	case V4L2_CID_DIGITAL_GAIN:
+ 		ret = imx477_write_reg(imx477, IMX477_REG_DIGITAL_GAIN,
+@@ -1510,9 +1580,8 @@ unsigned int imx477_get_frame_length(con
+ 
+ static void imx477_set_framing_limits(struct imx477 *imx477)
+ {
++	unsigned int frm_length_min, frm_length_default, hblank;
+ 	const struct imx477_mode *mode = imx477->mode;
+-	unsigned int frm_length_min, frm_length_default;
+-	unsigned int exposure_max, exposure_def, hblank;
+ 
+ 	frm_length_min = imx477_get_frame_length(mode, &mode->timeperframe_min);
+ 	frm_length_default =
+@@ -1522,15 +1591,10 @@ static void imx477_set_framing_limits(st
+ 	__v4l2_ctrl_modify_range(imx477->vblank, frm_length_min - mode->height,
+ 				 IMX477_FRAME_LENGTH_MAX - mode->height,
+ 				 1, frm_length_default - mode->height);
++
++	/* Setting this will adjust the exposure limits as well. */
+ 	__v4l2_ctrl_s_ctrl(imx477->vblank, frm_length_default - mode->height);
+ 
+-	/* Update max exposure while meeting expected vblanking */
+-	exposure_max = IMX477_FRAME_LENGTH_MAX - IMX477_EXPOSURE_OFFSET;
+-	exposure_def = frm_length_default - mode->height -
+-					    IMX477_EXPOSURE_OFFSET;
+-	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
+-				 exposure_max, imx477->exposure->step,
+-				 exposure_def);
+ 	/*
+ 	 * Currently PPL is fixed to the mode specified value, so hblank
+ 	 * depends on mode->width only, and is not changeable in any
+@@ -1939,6 +2003,11 @@ static int imx477_init_controls(struct i
+ 			  IMX477_DGTL_GAIN_MIN, IMX477_DGTL_GAIN_MAX,
+ 			  IMX477_DGTL_GAIN_STEP, IMX477_DGTL_GAIN_DEFAULT);
+ 
++	imx477->exposure_auto =
++			v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
++					  V4L2_CID_EXPOSURE_AUTO_PRIORITY,
++					  0, 1, 1, 0);
++
+ 	imx477->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
+ 					  V4L2_CID_HFLIP, 0, 1, 1, 0);
+ 	if (imx477->hflip)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0325-media-i2c-imx477-Return-correct-result-on-sensor-id-.patch b/target/linux/bcm27xx/patches-5.10/950-0325-media-i2c-imx477-Return-correct-result-on-sensor-id-.patch
new file mode 100644
index 0000000000..5d2cd9bdb7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0325-media-i2c-imx477-Return-correct-result-on-sensor-id-.patch
@@ -0,0 +1,25 @@
+From 15f2ddb7175008d14b25b7ab2eb71b487a497327 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 19 May 2020 16:56:33 +0100
+Subject: [PATCH] media: i2c: imx477: Return correct result on sensor
+ id verification
+
+The test should return -EIO if the register read id does not match
+the expected sensor id.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1919,7 +1919,7 @@ static int imx477_identify_module(struct
+ 	if (val != IMX477_CHIP_ID) {
+ 		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+ 			IMX477_CHIP_ID, val);
+-		ret = -EINVAL;
++		return -EIO;
+ 	}
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0326-media-i2c-imx477-Parse-and-register-properties.patch b/target/linux/bcm27xx/patches-5.10/950-0326-media-i2c-imx477-Parse-and-register-properties.patch
new file mode 100644
index 0000000000..902c839a7d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0326-media-i2c-imx477-Parse-and-register-properties.patch
@@ -0,0 +1,45 @@
+From 2a968d0a82efc2018f1831adbcbfa093f8032c87 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Date: Sat, 4 Jul 2020 01:45:08 +0300
+Subject: [PATCH] media: i2c: imx477: Parse and register properties
+
+Parse device properties and register controls for them using the V4L2
+fwnode properties helpers.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+---
+ drivers/media/i2c/imx477.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1957,11 +1957,12 @@ static int imx477_init_controls(struct i
+ {
+ 	struct v4l2_ctrl_handler *ctrl_hdlr;
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
++	struct v4l2_fwnode_device_properties props;
+ 	unsigned int i;
+ 	int ret;
+ 
+ 	ctrl_hdlr = &imx477->ctrl_handler;
+-	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 14);
++	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 16);
+ 	if (ret)
+ 		return ret;
+ 
+@@ -2045,6 +2046,15 @@ static int imx477_init_controls(struct i
+ 		goto error;
+ 	}
+ 
++	ret = v4l2_fwnode_device_parse(&client->dev, &props);
++	if (ret)
++		goto error;
++
++	ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx477_ctrl_ops,
++					      &props);
++	if (ret)
++		goto error;
++
+ 	imx477->sd.ctrl_handler = ctrl_hdlr;
+ 
+ 	/* Setup exposure and frame/line length limits. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0327-media-bcm2835-unicam-Always-service-interrupts.patch b/target/linux/bcm27xx/patches-5.10/950-0327-media-bcm2835-unicam-Always-service-interrupts.patch
new file mode 100644
index 0000000000..24c4b556f8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0327-media-bcm2835-unicam-Always-service-interrupts.patch
@@ -0,0 +1,51 @@
+From 3b1b2e000ea9430f6ccf588cb920bd8615701e1d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 13 May 2020 18:28:27 +0100
+Subject: [PATCH] media: bcm2835-unicam: Always service interrupts
+
+From when bringing up the driver, there was a check in the isr
+to ignore interrupts (claiming them handled) should the driver
+not be streaming.
+
+The VPU now will not register a camera driver if it finds a
+CSI2 node enabled in device tree, therefore this flawed check is
+redundant.
+
+https://github.com/raspberrypi/linux/issues/3602
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 15 ---------------
+ 1 file changed, 15 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -782,12 +782,6 @@ static bool unicam_all_nodes_streaming(s
+ 	return ret;
+ }
+ 
+-static bool unicam_all_nodes_disabled(struct unicam_device *dev)
+-{
+-	return !dev->node[IMAGE_PAD].streaming &&
+-	       !dev->node[METADATA_PAD].streaming;
+-}
+-
+ static void unicam_queue_event_sof(struct unicam_device *unicam)
+ {
+ 	struct v4l2_event event = {
+@@ -815,15 +809,6 @@ static irqreturn_t unicam_isr(int irq, v
+ 	u32 ista, sta;
+ 	u64 ts;
+ 
+-	/*
+-	 * Don't service interrupts if not streaming.
+-	 * Avoids issues if the VPU should enable the
+-	 * peripheral without the kernel knowing (that
+-	 * shouldn't happen, but causes issues if it does).
+-	 */
+-	if (unicam_all_nodes_disabled(unicam))
+-		return IRQ_NONE;
+-
+ 	sta = reg_read(unicam, UNICAM_STA);
+ 	/* Write value back to clear the interrupts */
+ 	reg_write(unicam, UNICAM_STA, sta);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0328-media-bcm2835-unicam-Fix-uninitialized-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0328-media-bcm2835-unicam-Fix-uninitialized-warning.patch
new file mode 100644
index 0000000000..5f8d013d5d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0328-media-bcm2835-unicam-Fix-uninitialized-warning.patch
@@ -0,0 +1,21 @@
+From 0524a77793eceb9d7c34d2833bdeec9f9cdb3825 Mon Sep 17 00:00:00 2001
+From: Jacko Dirks <jdirks.linuxdev@gmail.com>
+Date: Tue, 5 May 2020 14:33:31 +0200
+Subject: [PATCH] media: bcm2835: unicam: Fix uninitialized warning
+
+Signed-off-by: Jacko Dirks <jdirks.linuxdev@gmail.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1004,7 +1004,7 @@ const struct unicam_fmt *get_first_suppo
+ 	struct v4l2_subdev_mbus_code_enum mbus_code;
+ 	const struct unicam_fmt *fmt = NULL;
+ 	unsigned int i;
+-	int ret;
++	int ret = 0;
+ 
+ 	for (i = 0; ret != -EINVAL && ret != -ENOIOCTLCMD; ++i) {
+ 		memset(&mbus_code, 0, sizeof(mbus_code));
diff --git a/target/linux/bcm27xx/patches-5.10/950-0329-media-bcm2835-unicam-Fixup-review-comments-from-Hans.patch b/target/linux/bcm27xx/patches-5.10/950-0329-media-bcm2835-unicam-Fixup-review-comments-from-Hans.patch
new file mode 100644
index 0000000000..54fb9019e5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0329-media-bcm2835-unicam-Fixup-review-comments-from-Hans.patch
@@ -0,0 +1,244 @@
+From a658f8a9151c5852d590c998c2b806581509afbb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 23 Jun 2020 15:14:05 +0100
+Subject: [PATCH] media: bcm2835-unicam: Fixup review comments from
+ Hans.
+
+Updates the driver based on the upstream review comments from
+Hans Verkuil at https://patchwork.linuxtv.org/patch/63531/
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/Kconfig        | 12 ++--
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 70 ++++++++-----------
+ 2 files changed, 39 insertions(+), 43 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/Kconfig
++++ b/drivers/media/platform/bcm2835/Kconfig
+@@ -1,7 +1,7 @@
+ # Broadcom VideoCore4 V4L2 camera support
+ 
+ config VIDEO_BCM2835_UNICAM
+-	tristate "Broadcom BCM2835 Unicam video capture driver"
++	tristate "Broadcom BCM283x/BCM271x Unicam video capture driver"
+ 	depends on VIDEO_V4L2
+ 	depends on ARCH_BCM2835 || COMPILE_TEST
+ 	select VIDEO_V4L2_SUBDEV_API
+@@ -9,9 +9,13 @@ config VIDEO_BCM2835_UNICAM
+ 	select VIDEOBUF2_DMA_CONTIG
+ 	select V4L2_FWNODE
+ 	help
+-	  Say Y here to enable support for the BCM2835 CSI-2 receiver. This is a
+-	  V4L2 driver that controls the CSI-2 receiver directly, independently
+-	  from the VC4 firmware.
++	  Say Y here to enable support for the BCM283x/BCM271x CSI-2 receiver.
++	  This is a V4L2 driver that controls the CSI-2 receiver directly,
++	  independently from the VC4 firmware.
++	  This driver is mutually exclusive with the use of bcm2835-camera. The
++	  firmware will disable all access to the peripheral from within the
++	  firmware if it finds a DT node using it, and bcm2835-camera will
++	  therefore fail to probe.
+ 
+ 	  To compile this driver as a module, choose M here. The module will be
+ 	  called bcm2835-unicam.
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1,6 +1,6 @@
+ // SPDX-License-Identifier: GPL-2.0-only
+ /*
+- * BCM2835 Unicam Capture Driver
++ * BCM283x / BCM271x Unicam Capture Driver
+  *
+  * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd.
+  *
+@@ -571,9 +571,8 @@ static const struct unicam_fmt *find_for
+ 	return NULL;
+ }
+ 
+-static inline unsigned int bytes_per_line(u32 width,
+-					  const struct unicam_fmt *fmt,
+-					  u32 v4l2_fourcc)
++static unsigned int bytes_per_line(u32 width, const struct unicam_fmt *fmt,
++				   u32 v4l2_fourcc)
+ {
+ 	if (v4l2_fourcc == fmt->repacked_fourcc)
+ 		/* Repacking always goes to 16bpp */
+@@ -718,7 +717,7 @@ static void unicam_wr_dma_addr(struct un
+ 	}
+ }
+ 
+-static inline unsigned int unicam_get_lines_done(struct unicam_device *dev)
++static unsigned int unicam_get_lines_done(struct unicam_device *dev)
+ {
+ 	dma_addr_t start_addr, cur_addr;
+ 	unsigned int stride = dev->node[IMAGE_PAD].v_fmt.fmt.pix.bytesperline;
+@@ -732,7 +731,7 @@ static inline unsigned int unicam_get_li
+ 	return (unsigned int)(cur_addr - start_addr) / stride;
+ }
+ 
+-static inline void unicam_schedule_next_buffer(struct unicam_node *node)
++static void unicam_schedule_next_buffer(struct unicam_node *node)
+ {
+ 	struct unicam_device *dev = node->dev;
+ 	struct unicam_buffer *buf;
+@@ -751,7 +750,7 @@ static inline void unicam_schedule_next_
+ 	unicam_wr_dma_addr(dev, addr, size, node->pad_id);
+ }
+ 
+-static inline void unicam_schedule_dummy_buffer(struct unicam_node *node)
++static void unicam_schedule_dummy_buffer(struct unicam_node *node)
+ {
+ 	struct unicam_device *dev = node->dev;
+ 
+@@ -763,8 +762,8 @@ static inline void unicam_schedule_dummy
+ 	node->next_frm = NULL;
+ }
+ 
+-static inline void unicam_process_buffer_complete(struct unicam_node *node,
+-						  unsigned int sequence)
++static void unicam_process_buffer_complete(struct unicam_node *node,
++					   unsigned int sequence)
+ {
+ 	node->cur_frm->vb.field = node->m_fmt.field;
+ 	node->cur_frm->vb.sequence = sequence;
+@@ -772,16 +771,6 @@ static inline void unicam_process_buffer
+ 	vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ }
+ 
+-static bool unicam_all_nodes_streaming(struct unicam_device *dev)
+-{
+-	bool ret;
+-
+-	ret = dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming;
+-	ret &= !dev->node[METADATA_PAD].open ||
+-	       dev->node[METADATA_PAD].streaming;
+-	return ret;
+-}
+-
+ static void unicam_queue_event_sof(struct unicam_device *unicam)
+ {
+ 	struct v4l2_event event = {
+@@ -904,8 +893,8 @@ static int unicam_querycap(struct file *
+ 	struct unicam_node *node = video_drvdata(file);
+ 	struct unicam_device *dev = node->dev;
+ 
+-	strlcpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
+-	strlcpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
++	strscpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver));
++	strscpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card));
+ 
+ 	snprintf(cap->bus_info, sizeof(cap->bus_info),
+ 		 "platform:%s", dev_name(&dev->pdev->dev));
+@@ -998,8 +987,8 @@ static int unicam_g_fmt_vid_cap(struct f
+ 	return 0;
+ }
+ 
+-static
+-const struct unicam_fmt *get_first_supported_format(struct unicam_device *dev)
++static const struct unicam_fmt *
++get_first_supported_format(struct unicam_device *dev)
+ {
+ 	struct v4l2_subdev_mbus_code_enum mbus_code;
+ 	const struct unicam_fmt *fmt = NULL;
+@@ -1589,7 +1578,8 @@ static void unicam_disable(struct unicam
+ 	clk_write(dev, 0);
+ }
+ 
+-static void unicam_return_buffers(struct unicam_node *node)
++static void unicam_return_buffers(struct unicam_node *node,
++				  enum vb2_buffer_state state)
+ {
+ 	struct unicam_buffer *buf, *tmp;
+ 	unsigned long flags;
+@@ -1597,15 +1587,15 @@ static void unicam_return_buffers(struct
+ 	spin_lock_irqsave(&node->dma_queue_lock, flags);
+ 	list_for_each_entry_safe(buf, tmp, &node->dma_queue, list) {
+ 		list_del(&buf->list);
+-		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++		vb2_buffer_done(&buf->vb.vb2_buf, state);
+ 	}
+ 
+ 	if (node->cur_frm)
+ 		vb2_buffer_done(&node->cur_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_ERROR);
++				state);
+ 	if (node->next_frm && node->cur_frm != node->next_frm)
+ 		vb2_buffer_done(&node->next_frm->vb.vb2_buf,
+-				VB2_BUF_STATE_ERROR);
++				state);
+ 
+ 	node->cur_frm = NULL;
+ 	node->next_frm = NULL;
+@@ -1622,7 +1612,13 @@ static int unicam_start_streaming(struct
+ 	int ret;
+ 
+ 	node->streaming = true;
+-	if (!unicam_all_nodes_streaming(dev)) {
++	if (!(dev->node[IMAGE_PAD].open && dev->node[IMAGE_PAD].streaming &&
++	      (!dev->node[METADATA_PAD].open ||
++	       dev->node[METADATA_PAD].streaming))) {
++		/*
++		 * Metadata pad must be enabled before image pad if it is
++		 * wanted.
++		 */
+ 		unicam_dbg(3, dev, "Not all nodes are streaming yet.");
+ 		return 0;
+ 	}
+@@ -1726,7 +1722,7 @@ err_vpu_clock:
+ err_pm_put:
+ 	unicam_runtime_put(dev);
+ err_streaming:
+-	unicam_return_buffers(node);
++	unicam_return_buffers(node, VB2_BUF_STATE_QUEUED);
+ 	node->streaming = false;
+ 
+ 	return ret;
+@@ -1771,7 +1767,7 @@ static void unicam_stop_streaming(struct
+ 	}
+ 
+ 	/* Clear all queued buffers for the node */
+-	unicam_return_buffers(node);
++	unicam_return_buffers(node, VB2_BUF_STATE_ERROR);
+ }
+ 
+ static int unicam_enum_input(struct file *file, void *priv,
+@@ -1789,14 +1785,13 @@ static int unicam_enum_input(struct file
+ 		inp->std = 0;
+ 	} else if (v4l2_subdev_has_op(dev->sensor, video, s_std)) {
+ 		inp->capabilities = V4L2_IN_CAP_STD;
+-		if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std)
+-					< 0)
++		if (v4l2_subdev_call(dev->sensor, video, g_tvnorms, &inp->std) < 0)
+ 			inp->std = V4L2_STD_ALL;
+ 	} else {
+ 		inp->capabilities = 0;
+ 		inp->std = 0;
+ 	}
+-	sprintf(inp->name, "Camera 0");
++	snprintf(inp->name, sizeof(inp->name), "Camera 0");
+ 	return 0;
+ }
+ 
+@@ -2025,6 +2020,9 @@ static int unicam_s_dv_timings(struct fi
+ 	ret = v4l2_subdev_call(dev->sensor, video, g_dv_timings,
+ 			       &current_timings);
+ 
++	if (ret < 0)
++		return ret;
++
+ 	if (v4l2_match_dv_timings(timings, &current_timings, 0, false))
+ 		return 0;
+ 
+@@ -2455,12 +2453,6 @@ static int register_node(struct unicam_d
+ 		unicam_err(unicam, "Unable to allocate dummy buffer.\n");
+ 		return -ENOMEM;
+ 	}
+-
+-	if (pad_id == METADATA_PAD) {
+-		v4l2_disable_ioctl(vdev, VIDIOC_DQEVENT);
+-		v4l2_disable_ioctl(vdev, VIDIOC_SUBSCRIBE_EVENT);
+-		v4l2_disable_ioctl(vdev, VIDIOC_UNSUBSCRIBE_EVENT);
+-	}
+ 	if (pad_id == METADATA_PAD ||
+ 	    !v4l2_subdev_has_op(unicam->sensor, video, s_std)) {
+ 		v4l2_disable_ioctl(&node->video_dev, VIDIOC_S_STD);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0330-media-bcm2835-unicam-Retain-packing-information-on-G.patch b/target/linux/bcm27xx/patches-5.10/950-0330-media-bcm2835-unicam-Retain-packing-information-on-G.patch
new file mode 100644
index 0000000000..eebc893f90
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0330-media-bcm2835-unicam-Retain-packing-information-on-G.patch
@@ -0,0 +1,48 @@
+From bbdb89fbe61de5bacbb44ab919548fb84f1426d2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 19 May 2020 11:46:47 +0100
+Subject: [PATCH] media: bcm2835-unicam: Retain packing information on
+ G_FMT
+
+The change to retrieve the pixel format always on g_fmt didn't
+check whether the native or unpacked version of the format
+had been requested, and always returned the packed one.
+Correct this so that the packing setting is retained whereever
+possible.
+
+Fixes "9d59e89 media: bcm2835-unicam: Re-fetch mbus code from subdev
+on a g_fmt call"
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -980,8 +980,23 @@ static int unicam_g_fmt_vid_cap(struct f
+ 	if (!fmt)
+ 		return -EINVAL;
+ 
+-	node->fmt = fmt;
+-	node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++	if (node->fmt != fmt) {
++		/*
++		 * The sensor format has changed so the pixelformat needs to
++		 * be updated. Try and retain the packed/unpacked choice if
++		 * at all possible.
++		 */
++		if (node->fmt->repacked_fourcc ==
++						node->v_fmt.fmt.pix.pixelformat)
++			/* Using the repacked format */
++			node->v_fmt.fmt.pix.pixelformat = fmt->repacked_fourcc;
++		else
++			/* Using the native format */
++			node->v_fmt.fmt.pix.pixelformat = fmt->fourcc;
++
++		node->fmt = fmt;
++	}
++
+ 	*f = node->v_fmt;
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0331-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch b/target/linux/bcm27xx/patches-5.10/950-0331-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch
new file mode 100644
index 0000000000..052545e47e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0331-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch
@@ -0,0 +1,28 @@
+From a450dcfff0fb6882228bef9242a0c1afcef6337a Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Thu, 28 May 2020 11:09:48 +0100
+Subject: [PATCH] media: bcm2835-unicam: change minimum number of
+ vb2_queue buffers to 1
+
+Since the unicam driver was modified to write to a dummy buffer when no
+user-supplied buffer is available, it can now write to and return a
+buffer even when there's only a single one. Enable this by changing the
+min_buffers_needed in the vb2_queue; it will be useful for enabling
+still captures without allocating more memory than absolutely necessary.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -2428,7 +2428,7 @@ static int register_node(struct unicam_d
+ 	q->buf_struct_size = sizeof(struct unicam_buffer);
+ 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ 	q->lock = &node->lock;
+-	q->min_buffers_needed = 2;
++	q->min_buffers_needed = 1;
+ 	q->dev = &unicam->pdev->dev;
+ 
+ 	ret = vb2_queue_init(q);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0332-staging-fbtft-Add-support-for-display-variants.patch b/target/linux/bcm27xx/patches-5.10/950-0332-staging-fbtft-Add-support-for-display-variants.patch
new file mode 100644
index 0000000000..72f741fa89
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0332-staging-fbtft-Add-support-for-display-variants.patch
@@ -0,0 +1,205 @@
+From 809abb2cd0f810ee0a94add2e5a038c78825915d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 1 Sep 2020 18:15:27 +0100
+Subject: [PATCH] staging/fbtft: Add support for display variants
+
+Display variants are intended as a replacement for the now-deleted
+fbtft_device drivers. Drivers can register additional compatible
+strings with a custom callback that can make the required changes
+to the fbtft_display structure.
+
+Start the ball rolling by adding adafruit18, adafruit18_green and
+sainsmart18 displays.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/staging/fbtft/fb_st7735r.c | 38 +++++++++++++++++++++++++++++-
+ drivers/staging/fbtft/fbtft-core.c | 16 ++++++++++++-
+ drivers/staging/fbtft/fbtft.h      | 28 +++++++++++++++++-----
+ 3 files changed, 74 insertions(+), 8 deletions(-)
+
+--- a/drivers/staging/fbtft/fb_st7735r.c
++++ b/drivers/staging/fbtft/fb_st7735r.c
+@@ -16,6 +16,10 @@
+ #define DEFAULT_GAMMA   "0F 1A 0F 18 2F 28 20 22 1F 1B 23 37 00 07 02 10\n" \
+ 			"0F 1B 0F 17 33 2C 29 2E 30 30 39 3F 00 07 03 10"
+ 
++#define ADAFRUIT18_GAMMA \
++			"02 1c 07 12 37 32 29 2d 29 25 2B 39 00 01 03 10\n" \
++			"03 1d 07 06 2E 2C 29 2D 2E 2E 37 3F 00 00 02 10"
++
+ static const s16 default_init_sequence[] = {
+ 	-1, MIPI_DCS_SOFT_RESET,
+ 	-2, 150,                               /* delay */
+@@ -94,6 +98,14 @@ static void set_addr_win(struct fbtft_pa
+ 	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
+ }
+ 
++static void adafruit18_green_tab_set_addr_win(struct fbtft_par *par,
++					      int xs, int ys, int xe, int ye)
++{
++	write_reg(par, 0x2A, 0, xs + 2, 0, xe + 2);
++	write_reg(par, 0x2B, 0, ys + 1, 0, ye + 1);
++	write_reg(par, 0x2C);
++}
++
+ #define MY BIT(7)
+ #define MX BIT(6)
+ #define MV BIT(5)
+@@ -174,12 +186,36 @@ static struct fbtft_display display = {
+ 	},
+ };
+ 
+-FBTFT_REGISTER_DRIVER(DRVNAME, "sitronix,st7735r", &display);
++int variant_adafruit18(struct fbtft_display *display)
++{
++	display->gamma = ADAFRUIT18_GAMMA;
++	return 0;
++}
++
++int variant_adafruit18_green(struct fbtft_display *display)
++{
++	display->gamma = ADAFRUIT18_GAMMA;
++	display->fbtftops.set_addr_win = adafruit18_green_tab_set_addr_win;
++	return 0;
++}
++
++FBTFT_REGISTER_DRIVER_START(&display)
++FBTFT_COMPATIBLE("sitronix,st7735r")
++FBTFT_COMPATIBLE("fbtft,sainsmart18")
++FBTFT_VARIANT_COMPATIBLE("fbtft,adafruit18", variant_adafruit18)
++FBTFT_VARIANT_COMPATIBLE("fbtft,adafruit18_green", variant_adafruit18_green)
++FBTFT_REGISTER_DRIVER_END(DRVNAME, &display);
+ 
+ MODULE_ALIAS("spi:" DRVNAME);
+ MODULE_ALIAS("platform:" DRVNAME);
+ MODULE_ALIAS("spi:st7735r");
+ MODULE_ALIAS("platform:st7735r");
++MODULE_ALIAS("spi:sainsmart18");
++MODULE_ALIAS("platform:sainsmart");
++MODULE_ALIAS("spi:adafruit18");
++MODULE_ALIAS("platform:adafruit18");
++MODULE_ALIAS("spi:adafruit18_green");
++MODULE_ALIAS("platform:adafruit18_green");
+ 
+ MODULE_DESCRIPTION("FB driver for the ST7735R LCD Controller");
+ MODULE_AUTHOR("Noralf Tronnes");
+--- a/drivers/staging/fbtft/fbtft-core.c
++++ b/drivers/staging/fbtft/fbtft-core.c
+@@ -24,6 +24,8 @@
+ #include <linux/platform_device.h>
+ #include <linux/property.h>
+ #include <linux/spinlock.h>
++#include <linux/of.h>
++#include <linux/of_device.h>
+ 
+ #include <video/mipi_display.h>
+ 
+@@ -1194,6 +1196,7 @@ static struct fbtft_platform_data *fbtft
+  * @display: Display properties
+  * @sdev: SPI device
+  * @pdev: Platform device
++ * @dt_ids: Compatible string table
+  *
+  * Allocates, initializes and registers a framebuffer
+  *
+@@ -1203,12 +1206,15 @@ static struct fbtft_platform_data *fbtft
+  */
+ int fbtft_probe_common(struct fbtft_display *display,
+ 		       struct spi_device *sdev,
+-		       struct platform_device *pdev)
++		       struct platform_device *pdev,
++		       const struct of_device_id *dt_ids)
+ {
+ 	struct device *dev;
+ 	struct fb_info *info;
+ 	struct fbtft_par *par;
+ 	struct fbtft_platform_data *pdata;
++	const struct of_device_id *match;
++	int (*variant)(struct fbtft_display *);
+ 	int ret;
+ 
+ 	if (sdev)
+@@ -1224,6 +1230,14 @@ int fbtft_probe_common(struct fbtft_disp
+ 		pdata = fbtft_properties_read(dev);
+ 		if (IS_ERR(pdata))
+ 			return PTR_ERR(pdata);
++		match = of_match_device(dt_ids, dev);
++		if (match && match->data) {
++			/* apply the variant */
++			variant = match->data;
++			ret = (*variant)(display);
++			if (ret)
++				return ret;
++		}
+ 	}
+ 
+ 	info = fbtft_framebuffer_alloc(display, dev, pdata);
+--- a/drivers/staging/fbtft/fbtft.h
++++ b/drivers/staging/fbtft/fbtft.h
+@@ -251,7 +251,8 @@ void fbtft_register_backlight(struct fbt
+ void fbtft_unregister_backlight(struct fbtft_par *par);
+ int fbtft_init_display(struct fbtft_par *par);
+ int fbtft_probe_common(struct fbtft_display *display, struct spi_device *sdev,
+-		       struct platform_device *pdev);
++		       struct platform_device *pdev,
++		       const struct of_device_id *dt_ids);
+ int fbtft_remove_common(struct device *dev, struct fb_info *info);
+ 
+ /* fbtft-io.c */
+@@ -272,11 +273,13 @@ void fbtft_write_reg8_bus9(struct fbtft_
+ void fbtft_write_reg16_bus8(struct fbtft_par *par, int len, ...);
+ void fbtft_write_reg16_bus16(struct fbtft_par *par, int len, ...);
+ 
+-#define FBTFT_REGISTER_DRIVER(_name, _compatible, _display)                \
++#define FBTFT_REGISTER_DRIVER_START(_display)                              \
++									   \
++static const struct of_device_id dt_ids[];                                 \
+ 									   \
+ static int fbtft_driver_probe_spi(struct spi_device *spi)                  \
+ {                                                                          \
+-	return fbtft_probe_common(_display, spi, NULL);                    \
++	return fbtft_probe_common(_display, spi, NULL, dt_ids);	           \
+ }                                                                          \
+ 									   \
+ static int fbtft_driver_remove_spi(struct spi_device *spi)                 \
+@@ -288,7 +291,7 @@ static int fbtft_driver_remove_spi(struc
+ 									   \
+ static int fbtft_driver_probe_pdev(struct platform_device *pdev)           \
+ {                                                                          \
+-	return fbtft_probe_common(_display, NULL, pdev);                   \
++	return fbtft_probe_common(_display, NULL, pdev, dt_ids);           \
+ }                                                                          \
+ 									   \
+ static int fbtft_driver_remove_pdev(struct platform_device *pdev)          \
+@@ -298,8 +301,16 @@ static int fbtft_driver_remove_pdev(stru
+ 	return fbtft_remove_common(&pdev->dev, info);                      \
+ }                                                                          \
+ 									   \
+-static const struct of_device_id dt_ids[] = {                              \
+-	{ .compatible = _compatible },                                     \
++static const struct of_device_id dt_ids[] = {
++
++#define FBTFT_COMPATIBLE(_compatible)                                      \
++	{ .compatible = _compatible },
++
++#define FBTFT_VARIANT_COMPATIBLE(_compatible, _variant)                    \
++	{ .compatible = _compatible, .data = _variant },
++
++#define FBTFT_REGISTER_DRIVER_END(_name, _display)                         \
++									   \
+ 	{},                                                                \
+ };                                                                         \
+ 									   \
+@@ -344,6 +355,11 @@ static void __exit fbtft_driver_module_e
+ module_init(fbtft_driver_module_init);                                     \
+ module_exit(fbtft_driver_module_exit);
+ 
++#define FBTFT_REGISTER_DRIVER(_name, _compatible, _display)                \
++	FBTFT_REGISTER_DRIVER_START(_display)                              \
++	FBTFT_COMPATIBLE(_compatible)                                      \
++	FBTFT_REGISTER_DRIVER_END(_name, _display)
++
+ /* Debug macros */
+ 
+ /* shorthand debug levels */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0333-rpivid_h265-Fix-width-height-typo.patch b/target/linux/bcm27xx/patches-5.10/950-0333-rpivid_h265-Fix-width-height-typo.patch
new file mode 100644
index 0000000000..0aa420f744
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0333-rpivid_h265-Fix-width-height-typo.patch
@@ -0,0 +1,21 @@
+From 283636090484d4047e38a870194c212aeb197ebd Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 21 Sep 2020 14:02:44 +0100
+Subject: [PATCH] rpivid_h265: Fix width/height typo
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/staging/media/rpivid/rpivid_h265.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -2178,7 +2178,7 @@ static int rpivid_h265_start(struct rpiv
+ 	if (w > 4096)
+ 		w = 4096;
+ 	if (h == 0)
+-		w = 1088;
++		h = 1088;
+ 	if (h > 4096)
+ 		h = 4096;
+ 	wxh = w * h;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0334-net-bcmgenet-Reset-RBUF-on-first-open.patch b/target/linux/bcm27xx/patches-5.10/950-0334-net-bcmgenet-Reset-RBUF-on-first-open.patch
new file mode 100644
index 0000000000..7a6cc54f4c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0334-net-bcmgenet-Reset-RBUF-on-first-open.patch
@@ -0,0 +1,70 @@
+From eccfde35476213d30a67dedb63f007e7ae8da78c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 25 Sep 2020 15:07:23 +0100
+Subject: [PATCH] net: bcmgenet: Reset RBUF on first open
+
+If the RBUF logic is not reset when the kernel starts then there
+may be some data left over from any network boot loader. If the
+64-byte packet headers are enabled then this can be fatal.
+
+Extend bcmgenet_dma_disable to do perform the reset, but not when
+called from bcmgenet_resume in order to preserve a wake packet.
+
+N.B. This different handling of resume is just based on a hunch -
+why else wouldn't one reset the RBUF as well as the TBUF? If this
+isn't the case then it's easy to change the patch to make the RBUF
+reset unconditional.
+
+See: https://github.com/raspberrypi/linux/issues/3850
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/net/ethernet/broadcom/genet/bcmgenet.c | 16 ++++++++++++----
+ 1 file changed, 12 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+@@ -3244,7 +3244,7 @@ static void bcmgenet_get_hw_addr(struct
+ }
+ 
+ /* Returns a reusable dma control register value */
+-static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv)
++static u32 bcmgenet_dma_disable(struct bcmgenet_priv *priv, bool flush_rx)
+ {
+ 	unsigned int i;
+ 	u32 reg;
+@@ -3269,6 +3269,14 @@ static u32 bcmgenet_dma_disable(struct b
+ 	udelay(10);
+ 	bcmgenet_umac_writel(priv, 0, UMAC_TX_FLUSH);
+ 
++	if (flush_rx) {
++	    reg = bcmgenet_rbuf_ctrl_get(priv);
++	    bcmgenet_rbuf_ctrl_set(priv, reg | BIT(0));
++	    udelay(10);
++	    bcmgenet_rbuf_ctrl_set(priv, reg);
++	    udelay(10);
++	}
++
+ 	return dma_ctrl;
+ }
+ 
+@@ -3332,8 +3340,8 @@ static int bcmgenet_open(struct net_devi
+ 
+ 	bcmgenet_set_hw_addr(priv, dev->dev_addr);
+ 
+-	/* Disable RX/TX DMA and flush TX queues */
+-	dma_ctrl = bcmgenet_dma_disable(priv);
++	/* Disable RX/TX DMA and flush TX and RX queues */
++	dma_ctrl = bcmgenet_dma_disable(priv, true);
+ 
+ 	/* Reinitialize TDMA and RDMA and SW housekeeping */
+ 	ret = bcmgenet_init_dma(priv);
+@@ -4187,7 +4195,7 @@ static int bcmgenet_resume(struct device
+ 			bcmgenet_hfb_create_rxnfc_filter(priv, rule);
+ 
+ 	/* Disable RX/TX DMA and flush TX queues */
+-	dma_ctrl = bcmgenet_dma_disable(priv);
++	dma_ctrl = bcmgenet_dma_disable(priv, false);
+ 
+ 	/* Reinitialize TDMA and RDMA and SW housekeeping */
+ 	ret = bcmgenet_init_dma(priv);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0335-char-Add-broadcom-char-drivers-back-to-build-files.patch b/target/linux/bcm27xx/patches-5.10/950-0335-char-Add-broadcom-char-drivers-back-to-build-files.patch
new file mode 100644
index 0000000000..f49931f6d2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0335-char-Add-broadcom-char-drivers-back-to-build-files.patch
@@ -0,0 +1,30 @@
+From a0dab30b7061e7b56a5bd74f03bafb8e97d52135 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 28 Sep 2020 20:23:30 +0100
+Subject: [PATCH] char: Add broadcom char drivers back to build files
+
+See: https://github.com/raspberrypi/linux/issues/3875
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/char/Kconfig  | 2 ++
+ drivers/char/Makefile | 1 +
+ 2 files changed, 3 insertions(+)
+
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -5,6 +5,8 @@
+ 
+ menu "Character devices"
+ 
++source "drivers/char/broadcom/Kconfig"
++
+ source "drivers/tty/Kconfig"
+ 
+ config TTY_PRINTK
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -47,3 +47,4 @@ obj-$(CONFIG_PS3_FLASH)		+= ps3flash.o
+ obj-$(CONFIG_XILLYBUS)		+= xillybus/
+ obj-$(CONFIG_POWERNV_OP_PANEL)	+= powernv-op-panel.o
+ obj-$(CONFIG_ADI)		+= adi.o
++obj-$(CONFIG_BRCM_CHAR_DRIVERS) += broadcom/
diff --git a/target/linux/bcm27xx/patches-5.10/950-0336-dwc_otg-initialise-sched_frame-for-periodic-QHs-that.patch b/target/linux/bcm27xx/patches-5.10/950-0336-dwc_otg-initialise-sched_frame-for-periodic-QHs-that.patch
new file mode 100644
index 0000000000..77a20e6108
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0336-dwc_otg-initialise-sched_frame-for-periodic-QHs-that.patch
@@ -0,0 +1,33 @@
+From bdc90a7b7ee57434a37adcfcb07f98309cb3426b Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Wed, 7 Oct 2020 15:09:29 +0100
+Subject: [PATCH] dwc_otg: initialise sched_frame for periodic QHs that
+ were parked
+
+If a periodic QH has no remaining QTDs, then it is removed from all
+periodic schedules. When re-adding, initialise the sched_frame and
+start_split_frame from the current value of the frame counter.
+
+See https://bugs.launchpad.net/raspbian/+bug/1819560
+and
+ https://github.com/raspberrypi/linux/issues/3883
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_queue.c
+@@ -689,7 +689,11 @@ int dwc_otg_hcd_qh_add(dwc_otg_hcd_t * h
+ 				     &qh->qh_list_entry);
+ 		//hcd->fiq_state->kick_np_queues = 1;
+ 	} else {
++		/* If the QH wasn't in a schedule, then sched_frame is stale. */
++		qh->sched_frame = dwc_frame_num_inc(dwc_otg_hcd_get_frame_number(hcd),
++							SCHEDULE_SLOP);
+ 		status = schedule_periodic(hcd, qh);
++		qh->start_split_frame = qh->sched_frame;
+ 		if ( !hcd->periodic_qh_count ) {
+ 			intr_mask.b.sofintr = 1;
+ 			if (fiq_enable) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0337-staging-bcm2835-camera-Replace-deprecated-V4L2_PIX_F.patch b/target/linux/bcm27xx/patches-5.10/950-0337-staging-bcm2835-camera-Replace-deprecated-V4L2_PIX_F.patch
new file mode 100644
index 0000000000..6ef922efb8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0337-staging-bcm2835-camera-Replace-deprecated-V4L2_PIX_F.patch
@@ -0,0 +1,30 @@
+From 5ce4d307cbdf38c5c5e9abc6397ab72336cc2ca3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 8 Oct 2020 15:35:14 +0100
+Subject: [PATCH] staging: bcm2835-camera: Replace deprecated
+ V4L2_PIX_FMT_BGR32
+
+V4L2_PIX_FMT_BGR32 is deprecated as it is ambiguous over where
+the alpha byte is. Cheese/GStreamer appear to get it wrong for
+one, and qv4l2 gets red and blue swapped.
+
+Swap to the newer V4L2_PIX_FMT_BGRX32 format.
+
+https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=267736&p=1738912
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -178,7 +178,7 @@ static struct mmal_fmt formats[] = {
+ 		.ybbp = 1,
+ 		.remove_padding = 1,
+ 	}, {
+-		.fourcc = V4L2_PIX_FMT_BGR32,
++		.fourcc = V4L2_PIX_FMT_BGRX32,
+ 		.mmal = MMAL_ENCODING_BGRA,
+ 		.depth = 32,
+ 		.mmal_component = COMP_CAMERA,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0338-staging-vc04_services-Add-new-vc-sm-cma-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0338-staging-vc04_services-Add-new-vc-sm-cma-driver.patch
new file mode 100644
index 0000000000..8a744b94f0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0338-staging-vc04_services-Add-new-vc-sm-cma-driver.patch
@@ -0,0 +1,2926 @@
+From 253337e15008d614c846d07a44493008a7b803b5 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 8 Oct 2020 18:49:52 +0100
+Subject: [PATCH] staging: vc04_services: Add new vc-sm-cma driver
+
+Add Broadcom VideoCore Shared Memory support.
+
+This new driver allows contiguous memory blocks to be imported
+into the VideoCore VPU memory map, and manages the lifetime of
+those objects, only releasing the source dmabuf once the VPU has
+confirmed it has finished with it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/Kconfig         |    2 +
+ drivers/staging/vc04_services/Makefile        |    1 +
+ .../include/linux/broadcom/vc_sm_cma_ioctl.h  |  114 ++
+ .../staging/vc04_services/vc-sm-cma/Kconfig   |   10 +
+ .../staging/vc04_services/vc-sm-cma/Makefile  |   12 +
+ drivers/staging/vc04_services/vc-sm-cma/TODO  |    1 +
+ .../staging/vc04_services/vc-sm-cma/vc_sm.c   | 1725 +++++++++++++++++
+ .../staging/vc04_services/vc-sm-cma/vc_sm.h   |   84 +
+ .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.c  |  503 +++++
+ .../vc04_services/vc-sm-cma/vc_sm_cma_vchi.h  |   63 +
+ .../vc04_services/vc-sm-cma/vc_sm_defs.h      |  297 +++
+ .../vc04_services/vc-sm-cma/vc_sm_knl.h       |   28 +
+ 12 files changed, 2840 insertions(+)
+ create mode 100644 drivers/staging/vc04_services/include/linux/broadcom/vc_sm_cma_ioctl.h
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/Kconfig
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/Makefile
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/TODO
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm.h
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
+ create mode 100644 drivers/staging/vc04_services/vc-sm-cma/vc_sm_knl.h
+
+--- a/drivers/staging/vc04_services/Kconfig
++++ b/drivers/staging/vc04_services/Kconfig
+@@ -23,6 +23,8 @@ source "drivers/staging/vc04_services/bc
+ 
+ source "drivers/staging/vc04_services/bcm2835-camera/Kconfig"
+ 
++source "drivers/staging/vc04_services/vc-sm-cma/Kconfig"
++
+ source "drivers/staging/vc04_services/vchiq-mmal/Kconfig"
+ 
+ endif
+--- a/drivers/staging/vc04_services/Makefile
++++ b/drivers/staging/vc04_services/Makefile
+@@ -11,6 +11,7 @@ vchiq-objs := \
+ obj-$(CONFIG_SND_BCM2835)		+= bcm2835-audio/
+ obj-$(CONFIG_VIDEO_BCM2835)		+= bcm2835-camera/
+ obj-$(CONFIG_BCM2835_VCHIQ_MMAL)	+= vchiq-mmal/
++obj-$(CONFIG_BCM_VC_SM_CMA)		+= vc-sm-cma/
+ 
+ ccflags-y += -I $(srctree)/$(src)/include  -D__VCCOREVER__=0x04000000
+ 
+--- /dev/null
++++ b/drivers/staging/vc04_services/include/linux/broadcom/vc_sm_cma_ioctl.h
+@@ -0,0 +1,114 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++/*
++ * Copyright 2019 Raspberry Pi (Trading) Ltd.  All rights reserved.
++ *
++ * Based on vmcs_sm_ioctl.h Copyright Broadcom Corporation.
++ */
++
++#ifndef __VC_SM_CMA_IOCTL_H
++#define __VC_SM_CMA_IOCTL_H
++
++/* ---- Include Files ---------------------------------------------------- */
++
++#if defined(__KERNEL__)
++#include <linux/types.h>	/* Needed for standard types */
++#else
++#include <stdint.h>
++#endif
++
++#include <linux/ioctl.h>
++
++/* ---- Constants and Types ---------------------------------------------- */
++
++#define VC_SM_CMA_RESOURCE_NAME               32
++#define VC_SM_CMA_RESOURCE_NAME_DEFAULT       "sm-host-resource"
++
++/* Type define used to create unique IOCTL number */
++#define VC_SM_CMA_MAGIC_TYPE                  'J'
++
++/* IOCTL commands on /dev/vc-sm-cma */
++enum vc_sm_cma_cmd_e {
++	VC_SM_CMA_CMD_ALLOC = 0x5A,	/* Start at 0x5A arbitrarily */
++
++	VC_SM_CMA_CMD_IMPORT_DMABUF,
++
++	VC_SM_CMA_CMD_CLEAN_INVALID2,
++
++	VC_SM_CMA_CMD_LAST	/* Do not delete */
++};
++
++/* Cache type supported, conveniently matches the user space definition in
++ * user-vcsm.h.
++ */
++enum vc_sm_cma_cache_e {
++	VC_SM_CMA_CACHE_NONE,
++	VC_SM_CMA_CACHE_HOST,
++	VC_SM_CMA_CACHE_VC,
++	VC_SM_CMA_CACHE_BOTH,
++};
++
++/* IOCTL Data structures */
++struct vc_sm_cma_ioctl_alloc {
++	/* user -> kernel */
++	__u32 size;
++	__u32 num;
++	__u32 cached;		/* enum vc_sm_cma_cache_e */
++	__u32 pad;
++	__u8 name[VC_SM_CMA_RESOURCE_NAME];
++
++	/* kernel -> user */
++	__s32 handle;
++	__u32 vc_handle;
++	__u64 dma_addr;
++};
++
++struct vc_sm_cma_ioctl_import_dmabuf {
++	/* user -> kernel */
++	__s32 dmabuf_fd;
++	__u32 cached;		/* enum vc_sm_cma_cache_e */
++	__u8 name[VC_SM_CMA_RESOURCE_NAME];
++
++	/* kernel -> user */
++	__s32 handle;
++	__u32 vc_handle;
++	__u32 size;
++	__u32 pad;
++	__u64 dma_addr;
++};
++
++/*
++ * Cache functions to be set to struct vc_sm_cma_ioctl_clean_invalid2
++ * invalidate_mode.
++ */
++#define VC_SM_CACHE_OP_NOP       0x00
++#define VC_SM_CACHE_OP_INV       0x01
++#define VC_SM_CACHE_OP_CLEAN     0x02
++#define VC_SM_CACHE_OP_FLUSH     0x03
++
++struct vc_sm_cma_ioctl_clean_invalid2 {
++	__u32 op_count;
++	__u32 pad;
++	struct vc_sm_cma_ioctl_clean_invalid_block {
++		__u32 invalidate_mode;
++		__u32 block_count;
++		void *  __user start_address;
++		__u32 block_size;
++		__u32 inter_block_stride;
++	} s[0];
++};
++
++/* IOCTL numbers */
++#define VC_SM_CMA_IOCTL_MEM_ALLOC\
++	_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_ALLOC,\
++	 struct vc_sm_cma_ioctl_alloc)
++
++#define VC_SM_CMA_IOCTL_MEM_IMPORT_DMABUF\
++	_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_IMPORT_DMABUF,\
++	 struct vc_sm_cma_ioctl_import_dmabuf)
++
++#define VC_SM_CMA_IOCTL_MEM_CLEAN_INVALID2\
++	_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_CLEAN_INVALID2,\
++	 struct vc_sm_cma_ioctl_clean_invalid2)
++
++#endif /* __VC_SM_CMA_IOCTL_H */
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/Kconfig
+@@ -0,0 +1,10 @@
++config BCM_VC_SM_CMA
++	tristate "VideoCore Shared Memory (CMA) driver"
++	select BCM2835_VCHIQ
++	select RBTREE
++	select DMA_SHARED_BUFFER
++	help
++	  Say Y here to enable the shared memory interface that
++	  supports sharing dmabufs with VideoCore.
++	  This operates over the VCHIQ interface to a service
++	  running on VideoCore.
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/Makefile
+@@ -0,0 +1,12 @@
++ccflags-y += \
++	-I$(srctree)/$(src)/../ \
++	-I$(srctree)/$(src)/../interface/vchiq_arm\
++	-I$(srctree)/$(src)/../include
++
++ccflags-y += \
++	-D__VCCOREVER__=0
++
++vc-sm-cma-$(CONFIG_BCM_VC_SM_CMA) := \
++	vc_sm.o vc_sm_cma_vchi.o
++
++obj-$(CONFIG_BCM_VC_SM_CMA) += vc-sm-cma.o
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/TODO
+@@ -0,0 +1 @@
++No currently outstanding tasks except some clean-up.
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
+@@ -0,0 +1,1725 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * VideoCore Shared Memory driver using CMA.
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ * Dave Stevenson <dave.stevenson@raspberrypi.org>
++ *
++ * Based on vmcs_sm driver from Broadcom Corporation for some API,
++ * and taking some code for buffer allocation and dmabuf handling from
++ * videobuf2.
++ *
++ *
++ * This driver has 3 main uses:
++ * 1) Allocating buffers for the kernel or userspace that can be shared with the
++ *    VPU.
++ * 2) Importing dmabufs from elsewhere for sharing with the VPU.
++ * 3) Allocating buffers for use by the VPU.
++ *
++ * In the first and second cases the native handle is a dmabuf. Releasing the
++ * resource inherently comes from releasing the dmabuf, and this will trigger
++ * unmapping on the VPU. The underlying allocation and our buffer structure are
++ * retained until the VPU has confirmed that it has finished with it.
++ *
++ * For the VPU allocations the VPU is responsible for triggering the release,
++ * and therefore the released message decrements the dma_buf refcount (with the
++ * VPU mapping having already been marked as released).
++ */
++
++/* ---- Include Files ----------------------------------------------------- */
++#include <linux/cdev.h>
++#include <linux/device.h>
++#include <linux/debugfs.h>
++#include <linux/dma-mapping.h>
++#include <linux/dma-buf.h>
++#include <linux/errno.h>
++#include <linux/fs.h>
++#include <linux/kernel.h>
++#include <linux/list.h>
++#include <linux/miscdevice.h>
++#include <linux/module.h>
++#include <linux/mm.h>
++#include <linux/of_device.h>
++#include <linux/platform_device.h>
++#include <linux/proc_fs.h>
++#include <linux/slab.h>
++#include <linux/seq_file.h>
++#include <linux/syscalls.h>
++#include <linux/types.h>
++#include <asm/cacheflush.h>
++
++#include "vchiq_connected.h"
++#include "vc_sm_cma_vchi.h"
++
++#include "vc_sm.h"
++#include "vc_sm_knl.h"
++#include <linux/broadcom/vc_sm_cma_ioctl.h>
++
++/* ---- Private Constants and Types --------------------------------------- */
++
++#define DEVICE_NAME		"vcsm-cma"
++#define DEVICE_MINOR		0
++
++#define VC_SM_RESOURCE_NAME_DEFAULT       "sm-host-resource"
++
++#define VC_SM_DIR_ROOT_NAME	"vcsm-cma"
++#define VC_SM_STATE		"state"
++
++/* Private file data associated with each opened device. */
++struct vc_sm_privdata_t {
++	pid_t pid;                      /* PID of creator. */
++
++	int restart_sys;		/* Tracks restart on interrupt. */
++	enum vc_sm_msg_type int_action;	/* Interrupted action. */
++	u32 int_trans_id;		/* Interrupted transaction. */
++};
++
++typedef int (*VC_SM_SHOW) (struct seq_file *s, void *v);
++struct sm_pde_t {
++	VC_SM_SHOW show;          /* Debug fs function hookup. */
++	struct dentry *dir_entry; /* Debug fs directory entry. */
++	void *priv_data;          /* Private data */
++};
++
++/* Global state information. */
++struct sm_state_t {
++	struct platform_device *pdev;
++
++	struct miscdevice misc_dev;
++
++	struct sm_instance *sm_handle;	/* Handle for videocore service. */
++
++	spinlock_t kernelid_map_lock;	/* Spinlock protecting kernelid_map */
++	struct idr kernelid_map;
++
++	struct mutex map_lock;          /* Global map lock. */
++	struct list_head buffer_list;	/* List of buffer. */
++
++	struct vc_sm_privdata_t *data_knl;  /* Kernel internal data tracking. */
++	struct vc_sm_privdata_t *vpu_allocs; /* All allocations from the VPU */
++	struct dentry *dir_root;	/* Debug fs entries root. */
++	struct sm_pde_t dir_state;	/* Debug fs entries state sub-tree. */
++
++	bool require_released_callback;	/* VPU will send a released msg when it
++					 * has finished with a resource.
++					 */
++	u32 int_trans_id;		/* Interrupted transaction. */
++};
++
++struct vc_sm_dma_buf_attachment {
++	struct device *dev;
++	struct sg_table sg_table;
++	struct list_head list;
++	enum dma_data_direction	dma_dir;
++};
++
++/* ---- Private Variables ----------------------------------------------- */
++
++static struct sm_state_t *sm_state;
++static int sm_inited;
++
++/* ---- Private Function Prototypes -------------------------------------- */
++
++/* ---- Private Functions ------------------------------------------------ */
++
++static int get_kernel_id(struct vc_sm_buffer *buffer)
++{
++	int handle;
++
++	spin_lock(&sm_state->kernelid_map_lock);
++	handle = idr_alloc(&sm_state->kernelid_map, buffer, 0, 0, GFP_KERNEL);
++	spin_unlock(&sm_state->kernelid_map_lock);
++
++	return handle;
++}
++
++static struct vc_sm_buffer *lookup_kernel_id(int handle)
++{
++	return idr_find(&sm_state->kernelid_map, handle);
++}
++
++static void free_kernel_id(int handle)
++{
++	spin_lock(&sm_state->kernelid_map_lock);
++	idr_remove(&sm_state->kernelid_map, handle);
++	spin_unlock(&sm_state->kernelid_map_lock);
++}
++
++static int vc_sm_cma_seq_file_show(struct seq_file *s, void *v)
++{
++	struct sm_pde_t *sm_pde;
++
++	sm_pde = (struct sm_pde_t *)(s->private);
++
++	if (sm_pde && sm_pde->show)
++		sm_pde->show(s, v);
++
++	return 0;
++}
++
++static int vc_sm_cma_single_open(struct inode *inode, struct file *file)
++{
++	return single_open(file, vc_sm_cma_seq_file_show, inode->i_private);
++}
++
++static const struct file_operations vc_sm_cma_debug_fs_fops = {
++	.open = vc_sm_cma_single_open,
++	.read = seq_read,
++	.llseek = seq_lseek,
++	.release = single_release,
++};
++
++static int vc_sm_cma_global_state_show(struct seq_file *s, void *v)
++{
++	struct vc_sm_buffer *resource = NULL;
++	int resource_count = 0;
++
++	if (!sm_state)
++		return 0;
++
++	seq_printf(s, "\nVC-ServiceHandle     %p\n", sm_state->sm_handle);
++
++	/* Log all applicable mapping(s). */
++
++	mutex_lock(&sm_state->map_lock);
++	seq_puts(s, "\nResources\n");
++	if (!list_empty(&sm_state->buffer_list)) {
++		list_for_each_entry(resource, &sm_state->buffer_list,
++				    global_buffer_list) {
++			resource_count++;
++
++			seq_printf(s, "\nResource                %p\n",
++				   resource);
++			seq_printf(s, "           NAME         %s\n",
++				   resource->name);
++			seq_printf(s, "           SIZE         %zu\n",
++				   resource->size);
++			seq_printf(s, "           DMABUF       %p\n",
++				   resource->dma_buf);
++			if (resource->imported) {
++				seq_printf(s, "           ATTACH       %p\n",
++					   resource->import.attach);
++				seq_printf(s, "           SGT          %p\n",
++					   resource->import.sgt);
++			} else {
++				seq_printf(s, "           SGT          %p\n",
++					   resource->alloc.sg_table);
++			}
++			seq_printf(s, "           DMA_ADDR     %pad\n",
++				   &resource->dma_addr);
++			seq_printf(s, "           VC_HANDLE     %08x\n",
++				   resource->vc_handle);
++			seq_printf(s, "           VC_MAPPING    %d\n",
++				   resource->vpu_state);
++		}
++	}
++	seq_printf(s, "\n\nTotal resource count:   %d\n\n", resource_count);
++
++	mutex_unlock(&sm_state->map_lock);
++
++	return 0;
++}
++
++/*
++ * Adds a buffer to the private data list which tracks all the allocated
++ * data.
++ */
++static void vc_sm_add_resource(struct vc_sm_privdata_t *privdata,
++			       struct vc_sm_buffer *buffer)
++{
++	mutex_lock(&sm_state->map_lock);
++	list_add(&buffer->global_buffer_list, &sm_state->buffer_list);
++	mutex_unlock(&sm_state->map_lock);
++
++	pr_debug("[%s]: added buffer %p (name %s, size %zu)\n",
++		 __func__, buffer, buffer->name, buffer->size);
++}
++
++/*
++ * Cleans up imported dmabuf.
++ */
++static void vc_sm_clean_up_dmabuf(struct vc_sm_buffer *buffer)
++{
++	if (!buffer->imported)
++		return;
++
++	/* Handle cleaning up imported dmabufs */
++	mutex_lock(&buffer->lock);
++	if (buffer->import.sgt) {
++		dma_buf_unmap_attachment(buffer->import.attach,
++					 buffer->import.sgt,
++					 DMA_BIDIRECTIONAL);
++		buffer->import.sgt = NULL;
++	}
++	if (buffer->import.attach) {
++		dma_buf_detach(buffer->dma_buf, buffer->import.attach);
++		buffer->import.attach = NULL;
++	}
++	mutex_unlock(&buffer->lock);
++}
++
++/*
++ * Instructs VPU to decrement the refcount on a buffer.
++ */
++static void vc_sm_vpu_free(struct vc_sm_buffer *buffer)
++{
++	if (buffer->vc_handle && buffer->vpu_state == VPU_MAPPED) {
++		struct vc_sm_free_t free = { buffer->vc_handle, 0 };
++		int status = vc_sm_cma_vchi_free(sm_state->sm_handle, &free,
++					     &sm_state->int_trans_id);
++		if (status != 0 && status != -EINTR) {
++			pr_err("[%s]: failed to free memory on videocore (status: %u, trans_id: %u)\n",
++			       __func__, status, sm_state->int_trans_id);
++		}
++
++		if (sm_state->require_released_callback) {
++			/* Need to wait for the VPU to confirm the free. */
++
++			/* Retain a reference on this until the VPU has
++			 * released it
++			 */
++			buffer->vpu_state = VPU_UNMAPPING;
++		} else {
++			buffer->vpu_state = VPU_NOT_MAPPED;
++			buffer->vc_handle = 0;
++		}
++	}
++}
++
++/*
++ * Release an allocation.
++ * All refcounting is done via the dma buf object.
++ *
++ * Must be called with the mutex held. The function will either release the
++ * mutex (if defering the release) or destroy it. The caller must therefore not
++ * reuse the buffer on return.
++ */
++static void vc_sm_release_resource(struct vc_sm_buffer *buffer)
++{
++	pr_debug("[%s]: buffer %p (name %s, size %zu), imported %u\n",
++		 __func__, buffer, buffer->name, buffer->size,
++		 buffer->imported);
++
++	if (buffer->vc_handle) {
++		/* We've sent the unmap request but not had the response. */
++		pr_debug("[%s]: Waiting for VPU unmap response on %p\n",
++			 __func__, buffer);
++		goto defer;
++	}
++	if (buffer->in_use) {
++		/* dmabuf still in use - we await the release */
++		pr_debug("[%s]: buffer %p is still in use\n", __func__, buffer);
++		goto defer;
++	}
++
++	/* Release the allocation (whether imported dmabuf or CMA allocation) */
++	if (buffer->imported) {
++		if (buffer->import.dma_buf)
++			dma_buf_put(buffer->import.dma_buf);
++		else
++			pr_err("%s: Imported dmabuf already been put for buf %p\n",
++			       __func__, buffer);
++		buffer->import.dma_buf = NULL;
++	} else {
++		dma_free_coherent(&sm_state->pdev->dev, buffer->size,
++				  buffer->cookie, buffer->dma_addr);
++	}
++
++	/* Free our buffer. Start by removing it from the list */
++	mutex_lock(&sm_state->map_lock);
++	list_del(&buffer->global_buffer_list);
++	mutex_unlock(&sm_state->map_lock);
++
++	pr_debug("%s: Release our allocation - done\n", __func__);
++	mutex_unlock(&buffer->lock);
++
++	mutex_destroy(&buffer->lock);
++
++	kfree(buffer);
++	return;
++
++defer:
++	mutex_unlock(&buffer->lock);
++}
++
++/* Create support for private data tracking. */
++static struct vc_sm_privdata_t *vc_sm_cma_create_priv_data(pid_t id)
++{
++	char alloc_name[32];
++	struct vc_sm_privdata_t *file_data = NULL;
++
++	/* Allocate private structure. */
++	file_data = kzalloc(sizeof(*file_data), GFP_KERNEL);
++
++	if (!file_data)
++		return NULL;
++
++	snprintf(alloc_name, sizeof(alloc_name), "%d", id);
++
++	file_data->pid = id;
++
++	return file_data;
++}
++
++/* Dma buf operations for use with our own allocations */
++
++static int vc_sm_dma_buf_attach(struct dma_buf *dmabuf,
++				struct dma_buf_attachment *attachment)
++
++{
++	struct vc_sm_dma_buf_attachment *a;
++	struct sg_table *sgt;
++	struct vc_sm_buffer *buf = dmabuf->priv;
++	struct scatterlist *rd, *wr;
++	int ret, i;
++
++	a = kzalloc(sizeof(*a), GFP_KERNEL);
++	if (!a)
++		return -ENOMEM;
++
++	pr_debug("%s dmabuf %p attachment %p\n", __func__, dmabuf, attachment);
++
++	mutex_lock(&buf->lock);
++
++	INIT_LIST_HEAD(&a->list);
++
++	sgt = &a->sg_table;
++
++	/* Copy the buf->base_sgt scatter list to the attachment, as we can't
++	 * map the same scatter list to multiple attachments at the same time.
++	 */
++	ret = sg_alloc_table(sgt, buf->alloc.sg_table->orig_nents, GFP_KERNEL);
++	if (ret) {
++		kfree(a);
++		return -ENOMEM;
++	}
++
++	rd = buf->alloc.sg_table->sgl;
++	wr = sgt->sgl;
++	for (i = 0; i < sgt->orig_nents; ++i) {
++		sg_set_page(wr, sg_page(rd), rd->length, rd->offset);
++		rd = sg_next(rd);
++		wr = sg_next(wr);
++	}
++
++	a->dma_dir = DMA_NONE;
++	attachment->priv = a;
++
++	list_add(&a->list, &buf->attachments);
++	mutex_unlock(&buf->lock);
++
++	return 0;
++}
++
++static void vc_sm_dma_buf_detach(struct dma_buf *dmabuf,
++				 struct dma_buf_attachment *attachment)
++{
++	struct vc_sm_dma_buf_attachment *a = attachment->priv;
++	struct vc_sm_buffer *buf = dmabuf->priv;
++	struct sg_table *sgt;
++
++	pr_debug("%s dmabuf %p attachment %p\n", __func__, dmabuf, attachment);
++	if (!a)
++		return;
++
++	sgt = &a->sg_table;
++
++	/* release the scatterlist cache */
++	if (a->dma_dir != DMA_NONE)
++		dma_unmap_sg(attachment->dev, sgt->sgl, sgt->orig_nents,
++			     a->dma_dir);
++	sg_free_table(sgt);
++
++	mutex_lock(&buf->lock);
++	list_del(&a->list);
++	mutex_unlock(&buf->lock);
++
++	kfree(a);
++}
++
++static struct sg_table *vc_sm_map_dma_buf(struct dma_buf_attachment *attachment,
++					  enum dma_data_direction direction)
++{
++	struct vc_sm_dma_buf_attachment *a = attachment->priv;
++	/* stealing dmabuf mutex to serialize map/unmap operations */
++	struct mutex *lock = &attachment->dmabuf->lock;
++	struct sg_table *table;
++
++	mutex_lock(lock);
++	pr_debug("%s attachment %p\n", __func__, attachment);
++	table = &a->sg_table;
++
++	/* return previously mapped sg table */
++	if (a->dma_dir == direction) {
++		mutex_unlock(lock);
++		return table;
++	}
++
++	/* release any previous cache */
++	if (a->dma_dir != DMA_NONE) {
++		dma_unmap_sg(attachment->dev, table->sgl, table->orig_nents,
++			     a->dma_dir);
++		a->dma_dir = DMA_NONE;
++	}
++
++	/* mapping to the client with new direction */
++	table->nents = dma_map_sg(attachment->dev, table->sgl,
++				  table->orig_nents, direction);
++	if (!table->nents) {
++		pr_err("failed to map scatterlist\n");
++		mutex_unlock(lock);
++		return ERR_PTR(-EIO);
++	}
++
++	a->dma_dir = direction;
++	mutex_unlock(lock);
++
++	pr_debug("%s attachment %p\n", __func__, attachment);
++	return table;
++}
++
++static void vc_sm_unmap_dma_buf(struct dma_buf_attachment *attachment,
++				struct sg_table *table,
++				enum dma_data_direction direction)
++{
++	pr_debug("%s attachment %p\n", __func__, attachment);
++	dma_unmap_sg(attachment->dev, table->sgl, table->nents, direction);
++}
++
++static int vc_sm_dmabuf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++	int ret;
++
++	pr_debug("%s dmabuf %p, buf %p, vm_start %08lX\n", __func__, dmabuf,
++		 buf, vma->vm_start);
++
++	mutex_lock(&buf->lock);
++
++	/* now map it to userspace */
++	vma->vm_pgoff = 0;
++
++	ret = dma_mmap_coherent(&sm_state->pdev->dev, vma, buf->cookie,
++				buf->dma_addr, buf->size);
++
++	if (ret) {
++		pr_err("Remapping memory failed, error: %d\n", ret);
++		return ret;
++	}
++
++	vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
++
++	mutex_unlock(&buf->lock);
++
++	if (ret)
++		pr_err("%s: failure mapping buffer to userspace\n",
++		       __func__);
++
++	return ret;
++}
++
++static void vc_sm_dma_buf_release(struct dma_buf *dmabuf)
++{
++	struct vc_sm_buffer *buffer;
++
++	if (!dmabuf)
++		return;
++
++	buffer = (struct vc_sm_buffer *)dmabuf->priv;
++
++	mutex_lock(&buffer->lock);
++
++	pr_debug("%s dmabuf %p, buffer %p\n", __func__, dmabuf, buffer);
++
++	buffer->in_use = 0;
++
++	/* Unmap on the VPU */
++	vc_sm_vpu_free(buffer);
++	pr_debug("%s vpu_free done\n", __func__);
++
++	/* Unmap our dma_buf object (the vc_sm_buffer remains until released
++	 * on the VPU).
++	 */
++	vc_sm_clean_up_dmabuf(buffer);
++	pr_debug("%s clean_up dmabuf done\n", __func__);
++
++	/* buffer->lock will be destroyed by vc_sm_release_resource if finished
++	 * with, otherwise unlocked. Do NOT unlock here.
++	 */
++	vc_sm_release_resource(buffer);
++	pr_debug("%s done\n", __func__);
++}
++
++static int vc_sm_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
++					  enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf;
++	struct vc_sm_dma_buf_attachment *a;
++
++	if (!dmabuf)
++		return -EFAULT;
++
++	buf = dmabuf->priv;
++	if (!buf)
++		return -EFAULT;
++
++	mutex_lock(&buf->lock);
++
++	list_for_each_entry(a, &buf->attachments, list) {
++		dma_sync_sg_for_cpu(a->dev, a->sg_table.sgl,
++				    a->sg_table.nents, direction);
++	}
++	mutex_unlock(&buf->lock);
++
++	return 0;
++}
++
++static int vc_sm_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
++					enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf;
++	struct vc_sm_dma_buf_attachment *a;
++
++	if (!dmabuf)
++		return -EFAULT;
++	buf = dmabuf->priv;
++	if (!buf)
++		return -EFAULT;
++
++	mutex_lock(&buf->lock);
++
++	list_for_each_entry(a, &buf->attachments, list) {
++		dma_sync_sg_for_device(a->dev, a->sg_table.sgl,
++				       a->sg_table.nents, direction);
++	}
++	mutex_unlock(&buf->lock);
++
++	return 0;
++}
++
++static const struct dma_buf_ops dma_buf_ops = {
++	.map_dma_buf = vc_sm_map_dma_buf,
++	.unmap_dma_buf = vc_sm_unmap_dma_buf,
++	.mmap = vc_sm_dmabuf_mmap,
++	.release = vc_sm_dma_buf_release,
++	.attach = vc_sm_dma_buf_attach,
++	.detach = vc_sm_dma_buf_detach,
++	.begin_cpu_access = vc_sm_dma_buf_begin_cpu_access,
++	.end_cpu_access = vc_sm_dma_buf_end_cpu_access,
++};
++
++/* Dma_buf operations for chaining through to an imported dma_buf */
++
++static
++int vc_sm_import_dma_buf_attach(struct dma_buf *dmabuf,
++				struct dma_buf_attachment *attachment)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	if (!buf->imported)
++		return -EINVAL;
++	return buf->import.dma_buf->ops->attach(buf->import.dma_buf,
++						attachment);
++}
++
++static
++void vc_sm_import_dma_buf_detatch(struct dma_buf *dmabuf,
++				  struct dma_buf_attachment *attachment)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	if (!buf->imported)
++		return;
++	buf->import.dma_buf->ops->detach(buf->import.dma_buf, attachment);
++}
++
++static
++struct sg_table *vc_sm_import_map_dma_buf(struct dma_buf_attachment *attachment,
++					  enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf = attachment->dmabuf->priv;
++
++	if (!buf->imported)
++		return NULL;
++	return buf->import.dma_buf->ops->map_dma_buf(attachment,
++						     direction);
++}
++
++static
++void vc_sm_import_unmap_dma_buf(struct dma_buf_attachment *attachment,
++				struct sg_table *table,
++				enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf = attachment->dmabuf->priv;
++
++	if (!buf->imported)
++		return;
++	buf->import.dma_buf->ops->unmap_dma_buf(attachment, table, direction);
++}
++
++static
++int vc_sm_import_dmabuf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	pr_debug("%s: mmap dma_buf %p, buf %p, imported db %p\n", __func__,
++		 dmabuf, buf, buf->import.dma_buf);
++	if (!buf->imported) {
++		pr_err("%s: mmap dma_buf %p- not an imported buffer\n",
++		       __func__, dmabuf);
++		return -EINVAL;
++	}
++	return buf->import.dma_buf->ops->mmap(buf->import.dma_buf, vma);
++}
++
++static
++void vc_sm_import_dma_buf_release(struct dma_buf *dmabuf)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	pr_debug("%s: Relasing dma_buf %p\n", __func__, dmabuf);
++	mutex_lock(&buf->lock);
++	if (!buf->imported)
++		return;
++
++	buf->in_use = 0;
++
++	vc_sm_vpu_free(buf);
++
++	vc_sm_release_resource(buf);
++}
++
++static
++int vc_sm_import_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
++					  enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	if (!buf->imported)
++		return -EINVAL;
++	return buf->import.dma_buf->ops->begin_cpu_access(buf->import.dma_buf,
++							  direction);
++}
++
++static
++int vc_sm_import_dma_buf_end_cpu_access(struct dma_buf *dmabuf,
++					enum dma_data_direction direction)
++{
++	struct vc_sm_buffer *buf = dmabuf->priv;
++
++	if (!buf->imported)
++		return -EINVAL;
++	return buf->import.dma_buf->ops->end_cpu_access(buf->import.dma_buf,
++							  direction);
++}
++
++static const struct dma_buf_ops dma_buf_import_ops = {
++	.map_dma_buf = vc_sm_import_map_dma_buf,
++	.unmap_dma_buf = vc_sm_import_unmap_dma_buf,
++	.mmap = vc_sm_import_dmabuf_mmap,
++	.release = vc_sm_import_dma_buf_release,
++	.attach = vc_sm_import_dma_buf_attach,
++	.detach = vc_sm_import_dma_buf_detatch,
++	.begin_cpu_access = vc_sm_import_dma_buf_begin_cpu_access,
++	.end_cpu_access = vc_sm_import_dma_buf_end_cpu_access,
++};
++
++/* Import a dma_buf to be shared with VC. */
++int
++vc_sm_cma_import_dmabuf_internal(struct vc_sm_privdata_t *private,
++				 struct dma_buf *dma_buf,
++				 int fd,
++				 struct dma_buf **imported_buf)
++{
++	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
++	struct vc_sm_buffer *buffer = NULL;
++	struct vc_sm_import import = { };
++	struct vc_sm_import_result result = { };
++	struct dma_buf_attachment *attach = NULL;
++	struct sg_table *sgt = NULL;
++	dma_addr_t dma_addr;
++	int ret = 0;
++	int status;
++
++	/* Setup our allocation parameters */
++	pr_debug("%s: importing dma_buf %p/fd %d\n", __func__, dma_buf, fd);
++
++	if (fd < 0)
++		get_dma_buf(dma_buf);
++	else
++		dma_buf = dma_buf_get(fd);
++
++	if (!dma_buf)
++		return -EINVAL;
++
++	attach = dma_buf_attach(dma_buf, &sm_state->pdev->dev);
++	if (IS_ERR(attach)) {
++		ret = PTR_ERR(attach);
++		goto error;
++	}
++
++	sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
++	if (IS_ERR(sgt)) {
++		ret = PTR_ERR(sgt);
++		goto error;
++	}
++
++	/* Verify that the address block is contiguous */
++	if (sgt->nents != 1) {
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	/* Allocate local buffer to track this allocation. */
++	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
++	if (!buffer) {
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	import.type = VC_SM_ALLOC_NON_CACHED;
++	dma_addr = sg_dma_address(sgt->sgl);
++	import.addr = (u32)dma_addr;
++	if ((import.addr & 0xC0000000) != 0xC0000000) {
++		pr_err("%s: Expecting an uncached alias for dma_addr %pad\n",
++		       __func__, &dma_addr);
++		import.addr |= 0xC0000000;
++	}
++	import.size = sg_dma_len(sgt->sgl);
++	import.allocator = current->tgid;
++	import.kernel_id = get_kernel_id(buffer);
++
++	memcpy(import.name, VC_SM_RESOURCE_NAME_DEFAULT,
++	       sizeof(VC_SM_RESOURCE_NAME_DEFAULT));
++
++	pr_debug("[%s]: attempt to import \"%s\" data - type %u, addr %pad, size %u.\n",
++		 __func__, import.name, import.type, &dma_addr, import.size);
++
++	/* Allocate the videocore buffer. */
++	status = vc_sm_cma_vchi_import(sm_state->sm_handle, &import, &result,
++				       &sm_state->int_trans_id);
++	if (status == -EINTR) {
++		pr_debug("[%s]: requesting import memory action restart (trans_id: %u)\n",
++			 __func__, sm_state->int_trans_id);
++		ret = -ERESTARTSYS;
++		private->restart_sys = -EINTR;
++		private->int_action = VC_SM_MSG_TYPE_IMPORT;
++		goto error;
++	} else if (status || !result.res_handle) {
++		pr_debug("[%s]: failed to import memory on videocore (status: %u, trans_id: %u)\n",
++			 __func__, status, sm_state->int_trans_id);
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	mutex_init(&buffer->lock);
++	INIT_LIST_HEAD(&buffer->attachments);
++	memcpy(buffer->name, import.name,
++	       min(sizeof(buffer->name), sizeof(import.name) - 1));
++
++	/* Keep track of the buffer we created. */
++	buffer->private = private;
++	buffer->vc_handle = result.res_handle;
++	buffer->size = import.size;
++	buffer->vpu_state = VPU_MAPPED;
++
++	buffer->imported = 1;
++	buffer->import.dma_buf = dma_buf;
++
++	buffer->import.attach = attach;
++	buffer->import.sgt = sgt;
++	buffer->dma_addr = dma_addr;
++	buffer->in_use = 1;
++	buffer->kernel_id = import.kernel_id;
++
++	/*
++	 * We're done - we need to export a new dmabuf chaining through most
++	 * functions, but enabling us to release our own internal references
++	 * here.
++	 */
++	exp_info.ops = &dma_buf_import_ops;
++	exp_info.size = import.size;
++	exp_info.flags = O_RDWR;
++	exp_info.priv = buffer;
++
++	buffer->dma_buf = dma_buf_export(&exp_info);
++	if (IS_ERR(buffer->dma_buf)) {
++		ret = PTR_ERR(buffer->dma_buf);
++		goto error;
++	}
++
++	vc_sm_add_resource(private, buffer);
++
++	*imported_buf = buffer->dma_buf;
++
++	return 0;
++
++error:
++	if (result.res_handle) {
++		struct vc_sm_free_t free = { result.res_handle, 0 };
++
++		vc_sm_cma_vchi_free(sm_state->sm_handle, &free,
++				    &sm_state->int_trans_id);
++	}
++	free_kernel_id(import.kernel_id);
++	kfree(buffer);
++	if (sgt)
++		dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);
++	if (attach)
++		dma_buf_detach(dma_buf, attach);
++	dma_buf_put(dma_buf);
++	return ret;
++}
++
++static int vc_sm_cma_vpu_alloc(u32 size, u32 align, const char *name,
++			       u32 mem_handle, struct vc_sm_buffer **ret_buffer)
++{
++	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
++	struct vc_sm_buffer *buffer = NULL;
++	struct sg_table *sgt;
++	int aligned_size;
++	int ret = 0;
++
++	/* Align to the user requested align */
++	aligned_size = ALIGN(size, align);
++	/* and then to a page boundary */
++	aligned_size = PAGE_ALIGN(aligned_size);
++
++	if (!aligned_size)
++		return -EINVAL;
++
++	/* Allocate local buffer to track this allocation. */
++	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
++	if (!buffer)
++		return -ENOMEM;
++
++	mutex_init(&buffer->lock);
++	/* Acquire the mutex as vc_sm_release_resource will release it in the
++	 * error path.
++	 */
++	mutex_lock(&buffer->lock);
++
++	buffer->cookie = dma_alloc_coherent(&sm_state->pdev->dev,
++					    aligned_size, &buffer->dma_addr,
++					    GFP_KERNEL);
++	if (!buffer->cookie) {
++		pr_err("[%s]: dma_alloc_coherent alloc of %d bytes failed\n",
++		       __func__, aligned_size);
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	pr_debug("[%s]: alloc of %d bytes success\n",
++		 __func__, aligned_size);
++
++	sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
++	if (!sgt) {
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	ret = dma_get_sgtable(&sm_state->pdev->dev, sgt, buffer->cookie,
++			      buffer->dma_addr, buffer->size);
++	if (ret < 0) {
++		pr_err("failed to get scatterlist from DMA API\n");
++		kfree(sgt);
++		ret = -ENOMEM;
++		goto error;
++	}
++	buffer->alloc.sg_table = sgt;
++
++	INIT_LIST_HEAD(&buffer->attachments);
++
++	memcpy(buffer->name, name,
++	       min(sizeof(buffer->name), strlen(name)));
++
++	exp_info.ops = &dma_buf_ops;
++	exp_info.size = aligned_size;
++	exp_info.flags = O_RDWR;
++	exp_info.priv = buffer;
++
++	buffer->dma_buf = dma_buf_export(&exp_info);
++	if (IS_ERR(buffer->dma_buf)) {
++		ret = PTR_ERR(buffer->dma_buf);
++		goto error;
++	}
++	buffer->dma_addr = (u32)sg_dma_address(buffer->alloc.sg_table->sgl);
++	if ((buffer->dma_addr & 0xC0000000) != 0xC0000000) {
++		pr_warn_once("%s: Expecting an uncached alias for dma_addr %pad\n",
++			     __func__, &buffer->dma_addr);
++		buffer->dma_addr |= 0xC0000000;
++	}
++	buffer->private = sm_state->vpu_allocs;
++
++	buffer->vc_handle = mem_handle;
++	buffer->vpu_state = VPU_MAPPED;
++	buffer->vpu_allocated = 1;
++	buffer->size = size;
++	/*
++	 * Create an ID that will be passed along with our message so
++	 * that when we service the release reply, we can look up which
++	 * resource is being released.
++	 */
++	buffer->kernel_id = get_kernel_id(buffer);
++
++	vc_sm_add_resource(sm_state->vpu_allocs, buffer);
++
++	mutex_unlock(&buffer->lock);
++
++	*ret_buffer = buffer;
++	return 0;
++error:
++	if (buffer)
++		vc_sm_release_resource(buffer);
++	return ret;
++}
++
++static void
++vc_sm_vpu_event(struct sm_instance *instance, struct vc_sm_result_t *reply,
++		int reply_len)
++{
++	switch (reply->trans_id & ~0x80000000) {
++	case VC_SM_MSG_TYPE_CLIENT_VERSION:
++	{
++		/* Acknowledge that the firmware supports the version command */
++		pr_debug("%s: firmware acked version msg. Require release cb\n",
++			 __func__);
++		sm_state->require_released_callback = true;
++	}
++	break;
++	case VC_SM_MSG_TYPE_RELEASED:
++	{
++		struct vc_sm_released *release = (struct vc_sm_released *)reply;
++		struct vc_sm_buffer *buffer =
++					lookup_kernel_id(release->kernel_id);
++		if (!buffer) {
++			pr_err("%s: VC released a buffer that is already released, kernel_id %d\n",
++			       __func__, release->kernel_id);
++			break;
++		}
++		mutex_lock(&buffer->lock);
++
++		pr_debug("%s: Released addr %08x, size %u, id %08x, mem_handle %08x\n",
++			 __func__, release->addr, release->size,
++			 release->kernel_id, release->vc_handle);
++
++		buffer->vc_handle = 0;
++		buffer->vpu_state = VPU_NOT_MAPPED;
++		free_kernel_id(release->kernel_id);
++
++		if (buffer->vpu_allocated) {
++			/* VPU allocation, so release the dmabuf which will
++			 * trigger the clean up.
++			 */
++			mutex_unlock(&buffer->lock);
++			dma_buf_put(buffer->dma_buf);
++		} else {
++			vc_sm_release_resource(buffer);
++		}
++	}
++	break;
++	case VC_SM_MSG_TYPE_VC_MEM_REQUEST:
++	{
++		struct vc_sm_buffer *buffer = NULL;
++		struct vc_sm_vc_mem_request *req =
++					(struct vc_sm_vc_mem_request *)reply;
++		struct vc_sm_vc_mem_request_result reply;
++		int ret;
++
++		pr_debug("%s: Request %u bytes of memory, align %d name %s, trans_id %08x\n",
++			 __func__, req->size, req->align, req->name,
++			 req->trans_id);
++		ret = vc_sm_cma_vpu_alloc(req->size, req->align, req->name,
++					  req->vc_handle, &buffer);
++
++		reply.trans_id = req->trans_id;
++		if (!ret) {
++			reply.addr = buffer->dma_addr;
++			reply.kernel_id = buffer->kernel_id;
++			pr_debug("%s: Allocated resource buffer %p, addr %pad\n",
++				 __func__, buffer, &buffer->dma_addr);
++		} else {
++			pr_err("%s: Allocation failed size %u, name %s, vc_handle %u\n",
++			       __func__, req->size, req->name, req->vc_handle);
++			reply.addr = 0;
++			reply.kernel_id = 0;
++		}
++		vc_sm_vchi_client_vc_mem_req_reply(sm_state->sm_handle, &reply,
++						   &sm_state->int_trans_id);
++		break;
++	}
++	break;
++	default:
++		pr_err("%s: Unknown vpu cmd %x\n", __func__, reply->trans_id);
++		break;
++	}
++}
++
++/* Userspace handling */
++/*
++ * Open the device.  Creates a private state to help track all allocation
++ * associated with this device.
++ */
++static int vc_sm_cma_open(struct inode *inode, struct file *file)
++{
++	/* Make sure the device was started properly. */
++	if (!sm_state) {
++		pr_err("[%s]: invalid device\n", __func__);
++		return -EPERM;
++	}
++
++	file->private_data = vc_sm_cma_create_priv_data(current->tgid);
++	if (!file->private_data) {
++		pr_err("[%s]: failed to create data tracker\n", __func__);
++
++		return -ENOMEM;
++	}
++
++	return 0;
++}
++
++/*
++ * Close the vcsm-cma device.
++ * All allocations are file descriptors to the dmabuf objects, so we will get
++ * the clean up request on those as those are cleaned up.
++ */
++static int vc_sm_cma_release(struct inode *inode, struct file *file)
++{
++	struct vc_sm_privdata_t *file_data =
++	    (struct vc_sm_privdata_t *)file->private_data;
++	int ret = 0;
++
++	/* Make sure the device was started properly. */
++	if (!sm_state || !file_data) {
++		pr_err("[%s]: invalid device\n", __func__);
++		ret = -EPERM;
++		goto out;
++	}
++
++	pr_debug("[%s]: using private data %p\n", __func__, file_data);
++
++	/* Terminate the private data. */
++	kfree(file_data);
++
++out:
++	return ret;
++}
++
++/*
++ * Allocate a shared memory handle and block.
++ * Allocation is from CMA, and then imported into the VPU mappings.
++ */
++int vc_sm_cma_ioctl_alloc(struct vc_sm_privdata_t *private,
++			  struct vc_sm_cma_ioctl_alloc *ioparam)
++{
++	DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
++	struct vc_sm_buffer *buffer = NULL;
++	struct vc_sm_import import = { 0 };
++	struct vc_sm_import_result result = { 0 };
++	struct dma_buf *dmabuf = NULL;
++	struct sg_table *sgt;
++	int aligned_size;
++	int ret = 0;
++	int status;
++	int fd = -1;
++
++	aligned_size = PAGE_ALIGN(ioparam->size);
++
++	if (!aligned_size)
++		return -EINVAL;
++
++	/* Allocate local buffer to track this allocation. */
++	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
++	if (!buffer) {
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	buffer->cookie = dma_alloc_coherent(&sm_state->pdev->dev,
++					    aligned_size,
++					    &buffer->dma_addr,
++					    GFP_KERNEL);
++	if (!buffer->cookie) {
++		pr_err("[%s]: dma_alloc_coherent alloc of %d bytes failed\n",
++		       __func__, aligned_size);
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	import.type = VC_SM_ALLOC_NON_CACHED;
++	import.allocator = current->tgid;
++
++	if (*ioparam->name)
++		memcpy(import.name, ioparam->name, sizeof(import.name) - 1);
++	else
++		memcpy(import.name, VC_SM_RESOURCE_NAME_DEFAULT,
++		       sizeof(VC_SM_RESOURCE_NAME_DEFAULT));
++
++	mutex_init(&buffer->lock);
++	INIT_LIST_HEAD(&buffer->attachments);
++	memcpy(buffer->name, import.name,
++	       min(sizeof(buffer->name), sizeof(import.name) - 1));
++
++	exp_info.ops = &dma_buf_ops;
++	exp_info.size = aligned_size;
++	exp_info.flags = O_RDWR;
++	exp_info.priv = buffer;
++
++	dmabuf = dma_buf_export(&exp_info);
++	if (IS_ERR(dmabuf)) {
++		ret = PTR_ERR(dmabuf);
++		goto error;
++	}
++	buffer->dma_buf = dmabuf;
++
++	import.addr = buffer->dma_addr;
++	import.size = aligned_size;
++	import.kernel_id = get_kernel_id(buffer);
++
++	/* Wrap it into a videocore buffer. */
++	status = vc_sm_cma_vchi_import(sm_state->sm_handle, &import, &result,
++				       &sm_state->int_trans_id);
++	if (status == -EINTR) {
++		pr_debug("[%s]: requesting import memory action restart (trans_id: %u)\n",
++			 __func__, sm_state->int_trans_id);
++		ret = -ERESTARTSYS;
++		private->restart_sys = -EINTR;
++		private->int_action = VC_SM_MSG_TYPE_IMPORT;
++		goto error;
++	} else if (status || !result.res_handle) {
++		pr_err("[%s]: failed to import memory on videocore (status: %u, trans_id: %u)\n",
++		       __func__, status, sm_state->int_trans_id);
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	/* Keep track of the buffer we created. */
++	buffer->private = private;
++	buffer->vc_handle = result.res_handle;
++	buffer->size = import.size;
++	buffer->vpu_state = VPU_MAPPED;
++	buffer->kernel_id = import.kernel_id;
++
++	sgt = kmalloc(sizeof(*sgt), GFP_KERNEL);
++	if (!sgt) {
++		ret = -ENOMEM;
++		goto error;
++	}
++
++	ret = dma_get_sgtable(&sm_state->pdev->dev, sgt, buffer->cookie,
++			      buffer->dma_addr, buffer->size);
++	if (ret < 0) {
++		/* FIXME: error handling */
++		pr_err("failed to get scatterlist from DMA API\n");
++		kfree(sgt);
++		ret = -ENOMEM;
++		goto error;
++	}
++	buffer->alloc.sg_table = sgt;
++
++	fd = dma_buf_fd(dmabuf, O_CLOEXEC);
++	if (fd < 0)
++		goto error;
++
++	vc_sm_add_resource(private, buffer);
++
++	pr_debug("[%s]: Added resource as fd %d, buffer %p, private %p, dma_addr %pad\n",
++		 __func__, fd, buffer, private, &buffer->dma_addr);
++
++	/* We're done */
++	ioparam->handle = fd;
++	ioparam->vc_handle = buffer->vc_handle;
++	ioparam->dma_addr = buffer->dma_addr;
++	return 0;
++
++error:
++	pr_err("[%s]: something failed - cleanup. ret %d\n", __func__, ret);
++
++	if (dmabuf) {
++		/* dmabuf has been exported, therefore allow dmabuf cleanup to
++		 * deal with this
++		 */
++		dma_buf_put(dmabuf);
++	} else {
++		/* No dmabuf, therefore just free the buffer here */
++		if (buffer->cookie)
++			dma_free_coherent(&sm_state->pdev->dev, buffer->size,
++					  buffer->cookie, buffer->dma_addr);
++		kfree(buffer);
++	}
++	return ret;
++}
++
++#ifndef CONFIG_ARM64
++/* Converts VCSM_CACHE_OP_* to an operating function. */
++static void (*cache_op_to_func(const unsigned int cache_op))
++						(const void*, const void*)
++{
++	switch (cache_op) {
++	case VC_SM_CACHE_OP_NOP:
++		return NULL;
++
++	case VC_SM_CACHE_OP_INV:
++	case VC_SM_CACHE_OP_CLEAN:
++	case VC_SM_CACHE_OP_FLUSH:
++		return dmac_flush_range;
++
++	default:
++		pr_err("[%s]: Invalid cache_op: 0x%08x\n", __func__, cache_op);
++		return NULL;
++	}
++}
++
++/*
++ * Clean/invalid/flush cache of which buffer is already pinned (i.e. accessed).
++ */
++static int clean_invalid_contig_2d(const void __user *addr,
++				   const size_t block_count,
++				   const size_t block_size,
++				   const size_t stride,
++				   const unsigned int cache_op)
++{
++	size_t i;
++	void (*op_fn)(const void *start, const void *end);
++
++	if (!block_size) {
++		pr_err("[%s]: size cannot be 0\n", __func__);
++		return -EINVAL;
++	}
++
++	op_fn = cache_op_to_func(cache_op);
++	if (!op_fn)
++		return -EINVAL;
++
++	for (i = 0; i < block_count; i ++, addr += stride)
++		op_fn(addr, addr + block_size);
++
++	return 0;
++}
++
++static int vc_sm_cma_clean_invalid2(unsigned int cmdnr, unsigned long arg)
++{
++	struct vc_sm_cma_ioctl_clean_invalid2 ioparam;
++	struct vc_sm_cma_ioctl_clean_invalid_block *block = NULL;
++	int i, ret = 0;
++
++	/* Get parameter data. */
++	if (copy_from_user(&ioparam, (void *)arg, sizeof(ioparam))) {
++		pr_err("[%s]: failed to copy-from-user header for cmd %x\n",
++		       __func__, cmdnr);
++		return -EFAULT;
++	}
++	block = kmalloc(ioparam.op_count * sizeof(*block), GFP_KERNEL);
++	if (!block)
++		return -EFAULT;
++
++	if (copy_from_user(block, (void *)(arg + sizeof(ioparam)),
++			   ioparam.op_count * sizeof(*block)) != 0) {
++		pr_err("[%s]: failed to copy-from-user payload for cmd %x\n",
++		       __func__, cmdnr);
++		ret = -EFAULT;
++		goto out;
++	}
++
++	for (i = 0; i < ioparam.op_count; i++) {
++		const struct vc_sm_cma_ioctl_clean_invalid_block * const op =
++								block + i;
++
++		if (op->invalidate_mode == VC_SM_CACHE_OP_NOP)
++			continue;
++
++		ret = clean_invalid_contig_2d((void __user *)op->start_address,
++					      op->block_count, op->block_size,
++					      op->inter_block_stride,
++					      op->invalidate_mode);
++		if (ret)
++			break;
++	}
++out:
++	kfree(block);
++
++	return ret;
++}
++#endif
++
++static long vc_sm_cma_ioctl(struct file *file, unsigned int cmd,
++			    unsigned long arg)
++{
++	int ret = 0;
++	unsigned int cmdnr = _IOC_NR(cmd);
++	struct vc_sm_privdata_t *file_data =
++	    (struct vc_sm_privdata_t *)file->private_data;
++
++	/* Validate we can work with this device. */
++	if (!sm_state || !file_data) {
++		pr_err("[%s]: invalid device\n", __func__);
++		return -EPERM;
++	}
++
++	/* Action is a re-post of a previously interrupted action? */
++	if (file_data->restart_sys == -EINTR) {
++		pr_debug("[%s]: clean up of action %u (trans_id: %u) following EINTR\n",
++			 __func__, file_data->int_action,
++			 file_data->int_trans_id);
++
++		file_data->restart_sys = 0;
++	}
++
++	/* Now process the command. */
++	switch (cmdnr) {
++		/* New memory allocation.
++		 */
++	case VC_SM_CMA_CMD_ALLOC:
++	{
++		struct vc_sm_cma_ioctl_alloc ioparam;
++
++		/* Get the parameter data. */
++		if (copy_from_user
++		    (&ioparam, (void *)arg, sizeof(ioparam)) != 0) {
++			pr_err("[%s]: failed to copy-from-user for cmd %x\n",
++			       __func__, cmdnr);
++			ret = -EFAULT;
++			break;
++		}
++
++		ret = vc_sm_cma_ioctl_alloc(file_data, &ioparam);
++		if (!ret &&
++		    (copy_to_user((void *)arg, &ioparam,
++				  sizeof(ioparam)) != 0)) {
++			/* FIXME: Release allocation */
++			pr_err("[%s]: failed to copy-to-user for cmd %x\n",
++			       __func__, cmdnr);
++			ret = -EFAULT;
++		}
++		break;
++	}
++
++	case VC_SM_CMA_CMD_IMPORT_DMABUF:
++	{
++		struct vc_sm_cma_ioctl_import_dmabuf ioparam;
++		struct dma_buf *new_dmabuf;
++
++		/* Get the parameter data. */
++		if (copy_from_user
++		    (&ioparam, (void *)arg, sizeof(ioparam)) != 0) {
++			pr_err("[%s]: failed to copy-from-user for cmd %x\n",
++			       __func__, cmdnr);
++			ret = -EFAULT;
++			break;
++		}
++
++		ret = vc_sm_cma_import_dmabuf_internal(file_data,
++						       NULL,
++						       ioparam.dmabuf_fd,
++						       &new_dmabuf);
++
++		if (!ret) {
++			struct vc_sm_buffer *buf = new_dmabuf->priv;
++
++			ioparam.size = buf->size;
++			ioparam.handle = dma_buf_fd(new_dmabuf,
++						    O_CLOEXEC);
++			ioparam.vc_handle = buf->vc_handle;
++			ioparam.dma_addr = buf->dma_addr;
++
++			if (ioparam.handle < 0 ||
++			    (copy_to_user((void *)arg, &ioparam,
++					  sizeof(ioparam)) != 0)) {
++				dma_buf_put(new_dmabuf);
++				/* FIXME: Release allocation */
++				ret = -EFAULT;
++			}
++		}
++		break;
++	}
++
++#ifndef CONFIG_ARM64
++	/*
++	 * Flush/Invalidate the cache for a given mapping.
++	 * Blocks must be pinned (i.e. accessed) before this call.
++	 */
++	case VC_SM_CMA_CMD_CLEAN_INVALID2:
++		ret = vc_sm_cma_clean_invalid2(cmdnr, arg);
++		break;
++#endif
++
++	default:
++		pr_debug("[%s]: cmd %x tgid %u, owner %u\n", __func__, cmdnr,
++			 current->tgid, file_data->pid);
++
++		ret = -EINVAL;
++		break;
++	}
++
++	return ret;
++}
++
++#ifdef CONFIG_COMPAT
++struct vc_sm_cma_ioctl_clean_invalid2_32 {
++	u32 op_count;
++	struct vc_sm_cma_ioctl_clean_invalid_block_32 {
++		u16 invalidate_mode;
++		u16 block_count;
++		compat_uptr_t start_address;
++		u32 block_size;
++		u32 inter_block_stride;
++	} s[0];
++};
++
++#define VC_SM_CMA_CMD_CLEAN_INVALID2_32\
++	_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_CLEAN_INVALID2,\
++	 struct vc_sm_cma_ioctl_clean_invalid2_32)
++
++static long vc_sm_cma_compat_ioctl(struct file *file, unsigned int cmd,
++				   unsigned long arg)
++{
++	switch (cmd) {
++	case VC_SM_CMA_CMD_CLEAN_INVALID2_32:
++		/* FIXME */
++		return -EINVAL;
++
++	default:
++		return vc_sm_cma_ioctl(file, cmd, arg);
++	}
++}
++#endif
++
++/* Device operations that we managed in this driver. */
++static const struct file_operations vc_sm_ops = {
++	.owner = THIS_MODULE,
++	.unlocked_ioctl = vc_sm_cma_ioctl,
++#ifdef CONFIG_COMPAT
++	.compat_ioctl = vc_sm_cma_compat_ioctl,
++#endif
++	.open = vc_sm_cma_open,
++	.release = vc_sm_cma_release,
++};
++
++/* Driver load/unload functions */
++/* Videocore connected.  */
++static void vc_sm_connected_init(void)
++{
++	int ret;
++	struct vchiq_instance *vchiq_instance;
++	struct vc_sm_version version;
++	struct vc_sm_result_t version_result;
++
++	pr_info("[%s]: start\n", __func__);
++
++	/*
++	 * Initialize and create a VCHI connection for the shared memory service
++	 * running on videocore.
++	 */
++	ret = vchiq_initialise(&vchiq_instance);
++	if (ret) {
++		pr_err("[%s]: failed to initialise VCHI instance (ret=%d)\n",
++		       __func__, ret);
++
++		return;
++	}
++
++	ret = vchiq_connect(vchiq_instance);
++	if (ret) {
++		pr_err("[%s]: failed to connect VCHI instance (ret=%d)\n",
++		       __func__, ret);
++
++		return;
++	}
++
++	/* Initialize an instance of the shared memory service. */
++	sm_state->sm_handle = vc_sm_cma_vchi_init(vchiq_instance, 1,
++						  vc_sm_vpu_event);
++	if (!sm_state->sm_handle) {
++		pr_err("[%s]: failed to initialize shared memory service\n",
++		       __func__);
++
++		return;
++	}
++
++	/* Create a debug fs directory entry (root). */
++	sm_state->dir_root = debugfs_create_dir(VC_SM_DIR_ROOT_NAME, NULL);
++
++	sm_state->dir_state.show = &vc_sm_cma_global_state_show;
++	sm_state->dir_state.dir_entry =
++		debugfs_create_file(VC_SM_STATE, 0444, sm_state->dir_root,
++				    &sm_state->dir_state,
++				    &vc_sm_cma_debug_fs_fops);
++
++	INIT_LIST_HEAD(&sm_state->buffer_list);
++
++	/* Create a shared memory device. */
++	sm_state->misc_dev.minor = MISC_DYNAMIC_MINOR;
++	sm_state->misc_dev.name = DEVICE_NAME;
++	sm_state->misc_dev.fops = &vc_sm_ops;
++	sm_state->misc_dev.parent = NULL;
++	/* Temporarily set as 666 until udev rules have been sorted */
++	sm_state->misc_dev.mode = 0666;
++	ret = misc_register(&sm_state->misc_dev);
++	if (ret) {
++		pr_err("vcsm-cma: failed to register misc device.\n");
++		goto err_remove_debugfs;
++	}
++
++	sm_state->data_knl = vc_sm_cma_create_priv_data(0);
++	if (!sm_state->data_knl) {
++		pr_err("[%s]: failed to create kernel private data tracker\n",
++		       __func__);
++		goto err_remove_misc_dev;
++	}
++
++	version.version = 2;
++	ret = vc_sm_cma_vchi_client_version(sm_state->sm_handle, &version,
++					    &version_result,
++					    &sm_state->int_trans_id);
++	if (ret) {
++		pr_err("[%s]: Failed to send version request %d\n", __func__,
++		       ret);
++	}
++
++	/* Done! */
++	sm_inited = 1;
++	pr_info("[%s]: installed successfully\n", __func__);
++	return;
++
++err_remove_misc_dev:
++	misc_deregister(&sm_state->misc_dev);
++err_remove_debugfs:
++	debugfs_remove_recursive(sm_state->dir_root);
++	vc_sm_cma_vchi_stop(&sm_state->sm_handle);
++}
++
++/* Driver loading. */
++static int bcm2835_vc_sm_cma_probe(struct platform_device *pdev)
++{
++	pr_info("%s: Videocore shared memory driver\n", __func__);
++
++	sm_state = devm_kzalloc(&pdev->dev, sizeof(*sm_state), GFP_KERNEL);
++	if (!sm_state)
++		return -ENOMEM;
++	sm_state->pdev = pdev;
++	mutex_init(&sm_state->map_lock);
++
++	spin_lock_init(&sm_state->kernelid_map_lock);
++	idr_init_base(&sm_state->kernelid_map, 1);
++
++	pdev->dev.dma_parms = devm_kzalloc(&pdev->dev,
++					   sizeof(*pdev->dev.dma_parms),
++					   GFP_KERNEL);
++	/* dma_set_max_seg_size checks if dma_parms is NULL. */
++	dma_set_max_seg_size(&pdev->dev, 0x3FFFFFFF);
++
++	vchiq_add_connected_callback(vc_sm_connected_init);
++	return 0;
++}
++
++/* Driver unloading. */
++static int bcm2835_vc_sm_cma_remove(struct platform_device *pdev)
++{
++	pr_debug("[%s]: start\n", __func__);
++	if (sm_inited) {
++		misc_deregister(&sm_state->misc_dev);
++
++		/* Remove all proc entries. */
++		debugfs_remove_recursive(sm_state->dir_root);
++
++		/* Stop the videocore shared memory service. */
++		vc_sm_cma_vchi_stop(&sm_state->sm_handle);
++	}
++
++	if (sm_state) {
++		idr_destroy(&sm_state->kernelid_map);
++
++		/* Free the memory for the state structure. */
++		mutex_destroy(&sm_state->map_lock);
++	}
++
++	pr_debug("[%s]: end\n", __func__);
++	return 0;
++}
++
++/* Kernel API calls */
++/* Get an internal resource handle mapped from the external one. */
++int vc_sm_cma_int_handle(void *handle)
++{
++	struct dma_buf *dma_buf = (struct dma_buf *)handle;
++	struct vc_sm_buffer *buf;
++
++	/* Validate we can work with this device. */
++	if (!sm_state || !handle) {
++		pr_err("[%s]: invalid input\n", __func__);
++		return 0;
++	}
++
++	buf = (struct vc_sm_buffer *)dma_buf->priv;
++	return buf->vc_handle;
++}
++EXPORT_SYMBOL_GPL(vc_sm_cma_int_handle);
++
++/* Free a previously allocated shared memory handle and block. */
++int vc_sm_cma_free(void *handle)
++{
++	struct dma_buf *dma_buf = (struct dma_buf *)handle;
++
++	/* Validate we can work with this device. */
++	if (!sm_state || !handle) {
++		pr_err("[%s]: invalid input\n", __func__);
++		return -EPERM;
++	}
++
++	pr_debug("%s: handle %p/dmabuf %p\n", __func__, handle, dma_buf);
++
++	dma_buf_put(dma_buf);
++
++	return 0;
++}
++EXPORT_SYMBOL_GPL(vc_sm_cma_free);
++
++/* Import a dmabuf to be shared with VC. */
++int vc_sm_cma_import_dmabuf(struct dma_buf *src_dmabuf, void **handle)
++{
++	struct dma_buf *new_dma_buf;
++	int ret;
++
++	/* Validate we can work with this device. */
++	if (!sm_state || !src_dmabuf || !handle) {
++		pr_err("[%s]: invalid input\n", __func__);
++		return -EPERM;
++	}
++
++	ret = vc_sm_cma_import_dmabuf_internal(sm_state->data_knl, src_dmabuf,
++					       -1, &new_dma_buf);
++
++	if (!ret) {
++		pr_debug("%s: imported to ptr %p\n", __func__, new_dma_buf);
++
++		/* Assign valid handle at this time.*/
++		*handle = new_dma_buf;
++	} else {
++		/*
++		 * succeeded in importing the dma_buf, but then
++		 * failed to look it up again. How?
++		 * Release the fd again.
++		 */
++		pr_err("%s: imported vc_sm_cma_get_buffer failed %d\n",
++		       __func__, ret);
++	}
++
++	return ret;
++}
++EXPORT_SYMBOL_GPL(vc_sm_cma_import_dmabuf);
++
++static struct platform_driver bcm2835_vcsm_cma_driver = {
++	.probe = bcm2835_vc_sm_cma_probe,
++	.remove = bcm2835_vc_sm_cma_remove,
++	.driver = {
++		   .name = DEVICE_NAME,
++		   .owner = THIS_MODULE,
++		   },
++};
++
++module_platform_driver(bcm2835_vcsm_cma_driver);
++
++MODULE_AUTHOR("Dave Stevenson");
++MODULE_DESCRIPTION("VideoCore CMA Shared Memory Driver");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:vcsm-cma");
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.h
+@@ -0,0 +1,84 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++/*
++ * VideoCore Shared Memory driver using CMA.
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ *
++ */
++
++#ifndef VC_SM_H
++#define VC_SM_H
++
++#include <linux/device.h>
++#include <linux/dma-direction.h>
++#include <linux/kref.h>
++#include <linux/mm_types.h>
++#include <linux/mutex.h>
++#include <linux/rbtree.h>
++#include <linux/sched.h>
++#include <linux/shrinker.h>
++#include <linux/types.h>
++#include <linux/miscdevice.h>
++
++#define VC_SM_MAX_NAME_LEN 32
++
++enum vc_sm_vpu_mapping_state {
++	VPU_NOT_MAPPED,
++	VPU_MAPPED,
++	VPU_UNMAPPING
++};
++
++struct vc_sm_alloc_data {
++	unsigned long num_pages;
++	void *priv_virt;
++	struct sg_table *sg_table;
++};
++
++struct vc_sm_imported {
++	struct dma_buf *dma_buf;
++	struct dma_buf_attachment *attach;
++	struct sg_table *sgt;
++};
++
++struct vc_sm_buffer {
++	struct list_head global_buffer_list;	/* Global list of buffers. */
++
++	/* Index in the kernel_id idr so that we can find the
++	 * mmal_msg_context again when servicing the VCHI reply.
++	 */
++	int kernel_id;
++
++	size_t size;
++
++	/* Lock over all the following state for this buffer */
++	struct mutex lock;
++	struct list_head attachments;
++
++	char name[VC_SM_MAX_NAME_LEN];
++
++	int in_use:1;	/* Kernel is still using this resource */
++	int imported:1;	/* Imported dmabuf */
++
++	enum vc_sm_vpu_mapping_state vpu_state;
++	u32 vc_handle;	/* VideoCore handle for this buffer */
++	int vpu_allocated;	/*
++				 * The VPU made this allocation. Release the
++				 * local dma_buf when the VPU releases the
++				 * resource.
++				 */
++
++	/* DMABUF related fields */
++	struct dma_buf *dma_buf;
++	dma_addr_t dma_addr;
++	void *cookie;
++
++	struct vc_sm_privdata_t *private;
++
++	union {
++		struct vc_sm_alloc_data alloc;
++		struct vc_sm_imported import;
++	};
++};
++
++#endif
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.c
+@@ -0,0 +1,503 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * VideoCore Shared Memory CMA allocator
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ * Copyright 2011-2012 Broadcom Corporation.  All rights reserved.
++ *
++ * Based on vmcs_sm driver from Broadcom Corporation.
++ *
++ */
++
++/* ---- Include Files ----------------------------------------------------- */
++#include <linux/completion.h>
++#include <linux/kernel.h>
++#include <linux/kthread.h>
++#include <linux/list.h>
++#include <linux/mutex.h>
++#include <linux/semaphore.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++
++#include "vc_sm_cma_vchi.h"
++
++#define VC_SM_VER  1
++#define VC_SM_MIN_VER 0
++
++/* ---- Private Constants and Types -------------------------------------- */
++
++/* Command blocks come from a pool */
++#define SM_MAX_NUM_CMD_RSP_BLKS 32
++
++/* The number of supported connections */
++#define SM_MAX_NUM_CONNECTIONS 3
++
++struct sm_cmd_rsp_blk {
++	struct list_head head;	/* To create lists */
++	/* To be signaled when the response is there */
++	struct completion cmplt;
++
++	u32 id;
++	u16 length;
++
++	u8 msg[VC_SM_MAX_MSG_LEN];
++
++	uint32_t wait:1;
++	uint32_t sent:1;
++	uint32_t alloc:1;
++
++};
++
++struct sm_instance {
++	u32 num_connections;
++	unsigned int service_handle[SM_MAX_NUM_CONNECTIONS];
++	struct task_struct *io_thread;
++	struct completion io_cmplt;
++
++	vpu_event_cb vpu_event;
++
++	/* Mutex over the following lists */
++	struct mutex lock;
++	u32 trans_id;
++	struct list_head cmd_list;
++	struct list_head rsp_list;
++	struct list_head dead_list;
++
++	struct sm_cmd_rsp_blk free_blk[SM_MAX_NUM_CMD_RSP_BLKS];
++
++	/* Mutex over the free_list */
++	struct mutex free_lock;
++	struct list_head free_list;
++
++	struct semaphore free_sema;
++
++};
++
++/* ---- Private Variables ------------------------------------------------ */
++
++/* ---- Private Function Prototypes -------------------------------------- */
++
++/* ---- Private Functions ------------------------------------------------ */
++static int
++bcm2835_vchi_msg_queue(unsigned int handle,
++		       void *data,
++		       unsigned int size)
++{
++	return vchiq_queue_kernel_message(handle, data, size);
++}
++
++static struct
++sm_cmd_rsp_blk *vc_vchi_cmd_create(struct sm_instance *instance,
++				   enum vc_sm_msg_type id, void *msg,
++				   u32 size, int wait)
++{
++	struct sm_cmd_rsp_blk *blk;
++	struct vc_sm_msg_hdr_t *hdr;
++
++	if (down_interruptible(&instance->free_sema)) {
++		blk = kmalloc(sizeof(*blk), GFP_KERNEL);
++		if (!blk)
++			return NULL;
++
++		blk->alloc = 1;
++		init_completion(&blk->cmplt);
++	} else {
++		mutex_lock(&instance->free_lock);
++		blk =
++		    list_first_entry(&instance->free_list,
++				     struct sm_cmd_rsp_blk, head);
++		list_del(&blk->head);
++		mutex_unlock(&instance->free_lock);
++	}
++
++	blk->sent = 0;
++	blk->wait = wait;
++	blk->length = sizeof(*hdr) + size;
++
++	hdr = (struct vc_sm_msg_hdr_t *)blk->msg;
++	hdr->type = id;
++	mutex_lock(&instance->lock);
++	instance->trans_id++;
++	/*
++	 * Retain the top bit for identifying asynchronous events, or VPU cmds.
++	 */
++	instance->trans_id &= ~0x80000000;
++	hdr->trans_id = instance->trans_id;
++	blk->id = instance->trans_id;
++	mutex_unlock(&instance->lock);
++
++	if (size)
++		memcpy(hdr->body, msg, size);
++
++	return blk;
++}
++
++static void
++vc_vchi_cmd_delete(struct sm_instance *instance, struct sm_cmd_rsp_blk *blk)
++{
++	if (blk->alloc) {
++		kfree(blk);
++		return;
++	}
++
++	mutex_lock(&instance->free_lock);
++	list_add(&blk->head, &instance->free_list);
++	mutex_unlock(&instance->free_lock);
++	up(&instance->free_sema);
++}
++
++static void vc_sm_cma_vchi_rx_ack(struct sm_instance *instance,
++				  struct sm_cmd_rsp_blk *cmd,
++				  struct vc_sm_result_t *reply,
++				  u32 reply_len)
++{
++	mutex_lock(&instance->lock);
++	list_for_each_entry(cmd,
++			    &instance->rsp_list,
++			    head) {
++		if (cmd->id == reply->trans_id)
++			break;
++	}
++	mutex_unlock(&instance->lock);
++
++	if (&cmd->head == &instance->rsp_list) {
++		//pr_debug("%s: received response %u, throw away...",
++		pr_err("%s: received response %u, throw away...",
++		       __func__,
++		       reply->trans_id);
++	} else if (reply_len > sizeof(cmd->msg)) {
++		pr_err("%s: reply too big (%u) %u, throw away...",
++		       __func__, reply_len,
++		     reply->trans_id);
++	} else {
++		memcpy(cmd->msg, reply,
++		       reply_len);
++		complete(&cmd->cmplt);
++	}
++}
++
++static int vc_sm_cma_vchi_videocore_io(void *arg)
++{
++	struct sm_instance *instance = arg;
++	struct sm_cmd_rsp_blk *cmd = NULL, *cmd_tmp;
++	struct vc_sm_result_t *reply;
++	struct vchiq_header *header;
++	s32 status;
++	int svc_use = 1;
++
++	while (1) {
++		if (svc_use)
++			vchiq_release_service(instance->service_handle[0]);
++		svc_use = 0;
++
++		if (wait_for_completion_interruptible(&instance->io_cmplt))
++			continue;
++		vchiq_use_service(instance->service_handle[0]);
++		svc_use = 1;
++
++		do {
++			/*
++			 * Get new command and move it to response list
++			 */
++			mutex_lock(&instance->lock);
++			if (list_empty(&instance->cmd_list)) {
++				/* no more commands to process */
++				mutex_unlock(&instance->lock);
++				break;
++			}
++			cmd = list_first_entry(&instance->cmd_list,
++					       struct sm_cmd_rsp_blk, head);
++			list_move(&cmd->head, &instance->rsp_list);
++			cmd->sent = 1;
++			mutex_unlock(&instance->lock);
++			/* Send the command */
++			status =
++				bcm2835_vchi_msg_queue(instance->service_handle[0],
++						       cmd->msg, cmd->length);
++			if (status) {
++				pr_err("%s: failed to queue message (%d)",
++				       __func__, status);
++			}
++
++			/* If no reply is needed then we're done */
++			if (!cmd->wait) {
++				mutex_lock(&instance->lock);
++				list_del(&cmd->head);
++				mutex_unlock(&instance->lock);
++				vc_vchi_cmd_delete(instance, cmd);
++				continue;
++			}
++
++			if (status) {
++				complete(&cmd->cmplt);
++				continue;
++			}
++
++		} while (1);
++
++		while ((header = vchiq_msg_hold(instance->service_handle[0]))) {
++			reply = (struct vc_sm_result_t *)header->data;
++			if (reply->trans_id & 0x80000000) {
++				/* Async event or cmd from the VPU */
++				if (instance->vpu_event)
++					instance->vpu_event(instance, reply,
++							    header->size);
++			} else {
++				vc_sm_cma_vchi_rx_ack(instance, cmd, reply,
++						      header->size);
++			}
++
++			vchiq_release_message(instance->service_handle[0],
++					      header);
++		}
++
++		/* Go through the dead list and free them */
++		mutex_lock(&instance->lock);
++		list_for_each_entry_safe(cmd, cmd_tmp, &instance->dead_list,
++					 head) {
++			list_del(&cmd->head);
++			vc_vchi_cmd_delete(instance, cmd);
++		}
++		mutex_unlock(&instance->lock);
++	}
++
++	return 0;
++}
++
++static enum vchiq_status vc_sm_cma_vchi_callback(enum vchiq_reason reason,
++						 struct vchiq_header *header,
++						 unsigned int handle, void *userdata)
++{
++	struct sm_instance *instance = vchiq_get_service_userdata(handle);
++
++	switch (reason) {
++	case VCHIQ_MESSAGE_AVAILABLE:
++		vchiq_msg_queue_push(handle, header);
++		complete(&instance->io_cmplt);
++		break;
++
++	case VCHIQ_SERVICE_CLOSED:
++		pr_info("%s: service CLOSED!!", __func__);
++	default:
++		break;
++	}
++
++	return VCHIQ_SUCCESS;
++}
++
++struct sm_instance *vc_sm_cma_vchi_init(struct vchiq_instance *vchiq_instance,
++					unsigned int num_connections,
++					vpu_event_cb vpu_event)
++{
++	u32 i;
++	struct sm_instance *instance;
++	int status;
++
++	pr_debug("%s: start", __func__);
++
++	if (num_connections > SM_MAX_NUM_CONNECTIONS) {
++		pr_err("%s: unsupported number of connections %u (max=%u)",
++		       __func__, num_connections, SM_MAX_NUM_CONNECTIONS);
++
++		goto err_null;
++	}
++	/* Allocate memory for this instance */
++	instance = kzalloc(sizeof(*instance), GFP_KERNEL);
++
++	/* Misc initialisations */
++	mutex_init(&instance->lock);
++	init_completion(&instance->io_cmplt);
++	INIT_LIST_HEAD(&instance->cmd_list);
++	INIT_LIST_HEAD(&instance->rsp_list);
++	INIT_LIST_HEAD(&instance->dead_list);
++	INIT_LIST_HEAD(&instance->free_list);
++	sema_init(&instance->free_sema, SM_MAX_NUM_CMD_RSP_BLKS);
++	mutex_init(&instance->free_lock);
++	for (i = 0; i < SM_MAX_NUM_CMD_RSP_BLKS; i++) {
++		init_completion(&instance->free_blk[i].cmplt);
++		list_add(&instance->free_blk[i].head, &instance->free_list);
++	}
++
++	/* Open the VCHI service connections */
++	instance->num_connections = num_connections;
++	for (i = 0; i < num_connections; i++) {
++		struct vchiq_service_params_kernel params = {
++			.version = VC_SM_VER,
++			.version_min = VC_SM_MIN_VER,
++			.fourcc = VCHIQ_MAKE_FOURCC('S', 'M', 'E', 'M'),
++			.callback = vc_sm_cma_vchi_callback,
++			.userdata = instance,
++		};
++
++		status = vchiq_open_service(vchiq_instance, &params,
++					    &instance->service_handle[i]);
++		if (status) {
++			pr_err("%s: failed to open VCHI service (%d)",
++			       __func__, status);
++
++			goto err_close_services;
++		}
++	}
++	/* Create the thread which takes care of all io to/from videoocore. */
++	instance->io_thread = kthread_create(&vc_sm_cma_vchi_videocore_io,
++					     (void *)instance, "SMIO");
++	if (!instance->io_thread) {
++		pr_err("%s: failed to create SMIO thread", __func__);
++
++		goto err_close_services;
++	}
++	instance->vpu_event = vpu_event;
++	set_user_nice(instance->io_thread, -10);
++	wake_up_process(instance->io_thread);
++
++	pr_debug("%s: success - instance %p", __func__, instance);
++	return instance;
++
++err_close_services:
++	for (i = 0; i < instance->num_connections; i++) {
++		if (instance->service_handle[i])
++			vchiq_close_service(instance->service_handle[i]);
++	}
++	kfree(instance);
++err_null:
++	pr_debug("%s: FAILED", __func__);
++	return NULL;
++}
++
++int vc_sm_cma_vchi_stop(struct sm_instance **handle)
++{
++	struct sm_instance *instance;
++	u32 i;
++
++	if (!handle) {
++		pr_err("%s: invalid pointer to handle %p", __func__, handle);
++		goto lock;
++	}
++
++	if (!*handle) {
++		pr_err("%s: invalid handle %p", __func__, *handle);
++		goto lock;
++	}
++
++	instance = *handle;
++
++	/* Close all VCHI service connections */
++	for (i = 0; i < instance->num_connections; i++) {
++		vchiq_use_service(instance->service_handle[i]);
++		vchiq_close_service(instance->service_handle[i]);
++	}
++
++	kfree(instance);
++
++	*handle = NULL;
++	return 0;
++
++lock:
++	return -EINVAL;
++}
++
++static int vc_sm_cma_vchi_send_msg(struct sm_instance *handle,
++				   enum vc_sm_msg_type msg_id, void *msg,
++				   u32 msg_size, void *result, u32 result_size,
++				   u32 *cur_trans_id, u8 wait_reply)
++{
++	int status = 0;
++	struct sm_instance *instance = handle;
++	struct sm_cmd_rsp_blk *cmd_blk;
++
++	if (!handle) {
++		pr_err("%s: invalid handle", __func__);
++		return -EINVAL;
++	}
++	if (!msg) {
++		pr_err("%s: invalid msg pointer", __func__);
++		return -EINVAL;
++	}
++
++	cmd_blk =
++	    vc_vchi_cmd_create(instance, msg_id, msg, msg_size, wait_reply);
++	if (!cmd_blk) {
++		pr_err("[%s]: failed to allocate global tracking resource",
++		       __func__);
++		return -ENOMEM;
++	}
++
++	if (cur_trans_id)
++		*cur_trans_id = cmd_blk->id;
++
++	mutex_lock(&instance->lock);
++	list_add_tail(&cmd_blk->head, &instance->cmd_list);
++	mutex_unlock(&instance->lock);
++	complete(&instance->io_cmplt);
++
++	if (!wait_reply)
++		/* We're done */
++		return 0;
++
++	/* Wait for the response */
++	if (wait_for_completion_interruptible(&cmd_blk->cmplt)) {
++		mutex_lock(&instance->lock);
++		if (!cmd_blk->sent) {
++			list_del(&cmd_blk->head);
++			mutex_unlock(&instance->lock);
++			vc_vchi_cmd_delete(instance, cmd_blk);
++			return -ENXIO;
++		}
++
++		list_move(&cmd_blk->head, &instance->dead_list);
++		mutex_unlock(&instance->lock);
++		complete(&instance->io_cmplt);
++		return -EINTR;	/* We're done */
++	}
++
++	if (result && result_size) {
++		memcpy(result, cmd_blk->msg, result_size);
++	} else {
++		struct vc_sm_result_t *res =
++			(struct vc_sm_result_t *)cmd_blk->msg;
++		status = (res->success == 0) ? 0 : -ENXIO;
++	}
++
++	mutex_lock(&instance->lock);
++	list_del(&cmd_blk->head);
++	mutex_unlock(&instance->lock);
++	vc_vchi_cmd_delete(instance, cmd_blk);
++	return status;
++}
++
++int vc_sm_cma_vchi_free(struct sm_instance *handle, struct vc_sm_free_t *msg,
++			u32 *cur_trans_id)
++{
++	return vc_sm_cma_vchi_send_msg(handle, VC_SM_MSG_TYPE_FREE,
++				   msg, sizeof(*msg), 0, 0, cur_trans_id, 0);
++}
++
++int vc_sm_cma_vchi_import(struct sm_instance *handle, struct vc_sm_import *msg,
++			  struct vc_sm_import_result *result, u32 *cur_trans_id)
++{
++	return vc_sm_cma_vchi_send_msg(handle, VC_SM_MSG_TYPE_IMPORT,
++				   msg, sizeof(*msg), result, sizeof(*result),
++				   cur_trans_id, 1);
++}
++
++int vc_sm_cma_vchi_client_version(struct sm_instance *handle,
++				  struct vc_sm_version *msg,
++				  struct vc_sm_result_t *result,
++				  u32 *cur_trans_id)
++{
++	return vc_sm_cma_vchi_send_msg(handle, VC_SM_MSG_TYPE_CLIENT_VERSION,
++				   //msg, sizeof(*msg), result, sizeof(*result),
++				   //cur_trans_id, 1);
++				   msg, sizeof(*msg), NULL, 0,
++				   cur_trans_id, 0);
++}
++
++int vc_sm_vchi_client_vc_mem_req_reply(struct sm_instance *handle,
++				       struct vc_sm_vc_mem_request_result *msg,
++				       uint32_t *cur_trans_id)
++{
++	return vc_sm_cma_vchi_send_msg(handle,
++				       VC_SM_MSG_TYPE_VC_MEM_REQUEST_REPLY,
++				       msg, sizeof(*msg), 0, 0, cur_trans_id,
++				       0);
++}
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_cma_vchi.h
+@@ -0,0 +1,63 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++/*
++ * VideoCore Shared Memory CMA allocator
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ * Copyright 2011-2012 Broadcom Corporation.  All rights reserved.
++ *
++ * Based on vmcs_sm driver from Broadcom Corporation.
++ *
++ */
++
++#ifndef __VC_SM_CMA_VCHI_H__INCLUDED__
++#define __VC_SM_CMA_VCHI_H__INCLUDED__
++
++#include <linux/raspberrypi/vchiq.h>
++
++#include "vc_sm_defs.h"
++
++/*
++ * Forward declare.
++ */
++struct sm_instance;
++
++typedef void (*vpu_event_cb)(struct sm_instance *instance,
++			     struct vc_sm_result_t *reply, int reply_len);
++
++/*
++ * Initialize the shared memory service, opens up vchi connection to talk to it.
++ */
++struct sm_instance *vc_sm_cma_vchi_init(struct vchiq_instance *vchi_instance,
++					unsigned int num_connections,
++					vpu_event_cb vpu_event);
++
++/*
++ * Terminates the shared memory service.
++ */
++int vc_sm_cma_vchi_stop(struct sm_instance **handle);
++
++/*
++ * Ask the shared memory service to free up some memory that was previously
++ * allocated by the vc_sm_cma_vchi_alloc function call.
++ */
++int vc_sm_cma_vchi_free(struct sm_instance *handle, struct vc_sm_free_t *msg,
++			u32 *cur_trans_id);
++
++/*
++ * Import a contiguous block of memory and wrap it in a GPU MEM_HANDLE_T.
++ */
++int vc_sm_cma_vchi_import(struct sm_instance *handle, struct vc_sm_import *msg,
++			  struct vc_sm_import_result *result,
++			  u32 *cur_trans_id);
++
++int vc_sm_cma_vchi_client_version(struct sm_instance *handle,
++				  struct vc_sm_version *msg,
++				  struct vc_sm_result_t *result,
++				  u32 *cur_trans_id);
++
++int vc_sm_vchi_client_vc_mem_req_reply(struct sm_instance *handle,
++				       struct vc_sm_vc_mem_request_result *msg,
++				       uint32_t *cur_trans_id);
++
++#endif /* __VC_SM_CMA_VCHI_H__INCLUDED__ */
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_defs.h
+@@ -0,0 +1,297 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++/*
++ * VideoCore Shared Memory CMA allocator
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ *
++ * Based on vc_sm_defs.h from the vmcs_sm driver Copyright Broadcom Corporation.
++ * All IPC messages are copied across to this file, even if the vc-sm-cma
++ * driver is not currently using them.
++ *
++ ****************************************************************************
++ */
++
++#ifndef __VC_SM_DEFS_H__INCLUDED__
++#define __VC_SM_DEFS_H__INCLUDED__
++
++/* Maximum message length */
++#define VC_SM_MAX_MSG_LEN (sizeof(union vc_sm_msg_union_t) + \
++	sizeof(struct vc_sm_msg_hdr_t))
++#define VC_SM_MAX_RSP_LEN (sizeof(union vc_sm_msg_union_t))
++
++/* Resource name maximum size */
++#define VC_SM_RESOURCE_NAME 32
++
++/*
++ * Version to be reported to the VPU
++ * VPU assumes 0 (aka 1) which does not require the released callback, nor
++ * expect the client to handle VC_MEM_REQUESTS.
++ * Version 2 requires the released callback, and must support VC_MEM_REQUESTS.
++ */
++#define VC_SM_PROTOCOL_VERSION	2
++
++enum vc_sm_msg_type {
++	/* Message types supported for HOST->VC direction */
++
++	/* Allocate shared memory block */
++	VC_SM_MSG_TYPE_ALLOC,
++	/* Lock allocated shared memory block */
++	VC_SM_MSG_TYPE_LOCK,
++	/* Unlock allocated shared memory block */
++	VC_SM_MSG_TYPE_UNLOCK,
++	/* Unlock allocated shared memory block, do not answer command */
++	VC_SM_MSG_TYPE_UNLOCK_NOANS,
++	/* Free shared memory block */
++	VC_SM_MSG_TYPE_FREE,
++	/* Resize a shared memory block */
++	VC_SM_MSG_TYPE_RESIZE,
++	/* Walk the allocated shared memory block(s) */
++	VC_SM_MSG_TYPE_WALK_ALLOC,
++
++	/* A previously applied action will need to be reverted */
++	VC_SM_MSG_TYPE_ACTION_CLEAN,
++
++	/*
++	 * Import a physical address and wrap into a MEM_HANDLE_T.
++	 * Release with VC_SM_MSG_TYPE_FREE.
++	 */
++	VC_SM_MSG_TYPE_IMPORT,
++	/*
++	 *Tells VC the protocol version supported by this client.
++	 * 2 supports the async/cmd messages from the VPU for final release
++	 * of memory, and for VC allocations.
++	 */
++	VC_SM_MSG_TYPE_CLIENT_VERSION,
++	/* Response to VC request for memory */
++	VC_SM_MSG_TYPE_VC_MEM_REQUEST_REPLY,
++
++	/*
++	 * Asynchronous/cmd messages supported for VC->HOST direction.
++	 * Signalled by setting the top bit in vc_sm_result_t trans_id.
++	 */
++
++	/*
++	 * VC has finished with an imported memory allocation.
++	 * Release any Linux reference counts on the underlying block.
++	 */
++	VC_SM_MSG_TYPE_RELEASED,
++	/* VC request for memory */
++	VC_SM_MSG_TYPE_VC_MEM_REQUEST,
++
++	VC_SM_MSG_TYPE_MAX
++};
++
++/* Type of memory to be allocated */
++enum vc_sm_alloc_type_t {
++	VC_SM_ALLOC_CACHED,
++	VC_SM_ALLOC_NON_CACHED,
++};
++
++/* Message header for all messages in HOST->VC direction */
++struct vc_sm_msg_hdr_t {
++	u32 type;
++	u32 trans_id;
++	u8 body[0];
++
++};
++
++/* Request to allocate memory (HOST->VC) */
++struct vc_sm_alloc_t {
++	/* type of memory to allocate */
++	enum vc_sm_alloc_type_t type;
++	/* byte amount of data to allocate per unit */
++	u32 base_unit;
++	/* number of unit to allocate */
++	u32 num_unit;
++	/* alignment to be applied on allocation */
++	u32 alignment;
++	/* identity of who allocated this block */
++	u32 allocator;
++	/* resource name (for easier tracking on vc side) */
++	char name[VC_SM_RESOURCE_NAME];
++
++};
++
++/* Result of a requested memory allocation (VC->HOST) */
++struct vc_sm_alloc_result_t {
++	/* Transaction identifier */
++	u32 trans_id;
++
++	/* Resource handle */
++	u32 res_handle;
++	/* Pointer to resource buffer */
++	u32 res_mem;
++	/* Resource base size (bytes) */
++	u32 res_base_size;
++	/* Resource number */
++	u32 res_num;
++
++};
++
++/* Request to free a previously allocated memory (HOST->VC) */
++struct vc_sm_free_t {
++	/* Resource handle (returned from alloc) */
++	u32 res_handle;
++	/* Resource buffer (returned from alloc) */
++	u32 res_mem;
++
++};
++
++/* Request to lock a previously allocated memory (HOST->VC) */
++struct vc_sm_lock_unlock_t {
++	/* Resource handle (returned from alloc) */
++	u32 res_handle;
++	/* Resource buffer (returned from alloc) */
++	u32 res_mem;
++
++};
++
++/* Request to resize a previously allocated memory (HOST->VC) */
++struct vc_sm_resize_t {
++	/* Resource handle (returned from alloc) */
++	u32 res_handle;
++	/* Resource buffer (returned from alloc) */
++	u32 res_mem;
++	/* Resource *new* size requested (bytes) */
++	u32 res_new_size;
++
++};
++
++/* Result of a requested memory lock (VC->HOST) */
++struct vc_sm_lock_result_t {
++	/* Transaction identifier */
++	u32 trans_id;
++
++	/* Resource handle */
++	u32 res_handle;
++	/* Pointer to resource buffer */
++	u32 res_mem;
++	/*
++	 * Pointer to former resource buffer if the memory
++	 * was reallocated
++	 */
++	u32 res_old_mem;
++
++};
++
++/* Generic result for a request (VC->HOST) */
++struct vc_sm_result_t {
++	/* Transaction identifier */
++	u32 trans_id;
++
++	s32 success;
++
++};
++
++/* Request to revert a previously applied action (HOST->VC) */
++struct vc_sm_action_clean_t {
++	/* Action of interest */
++	enum vc_sm_msg_type res_action;
++	/* Transaction identifier for the action of interest */
++	u32 action_trans_id;
++
++};
++
++/* Request to remove all data associated with a given allocator (HOST->VC) */
++struct vc_sm_free_all_t {
++	/* Allocator identifier */
++	u32 allocator;
++};
++
++/* Request to import memory (HOST->VC) */
++struct vc_sm_import {
++	/* type of memory to allocate */
++	enum vc_sm_alloc_type_t type;
++	/* pointer to the VC (ie physical) address of the allocated memory */
++	u32 addr;
++	/* size of buffer */
++	u32 size;
++	/* opaque handle returned in RELEASED messages */
++	u32 kernel_id;
++	/* Allocator identifier */
++	u32 allocator;
++	/* resource name (for easier tracking on vc side) */
++	char     name[VC_SM_RESOURCE_NAME];
++};
++
++/* Result of a requested memory import (VC->HOST) */
++struct vc_sm_import_result {
++	/* Transaction identifier */
++	u32 trans_id;
++
++	/* Resource handle */
++	u32 res_handle;
++};
++
++/* Notification that VC has finished with an allocation (VC->HOST) */
++struct vc_sm_released {
++	/* cmd type / trans_id */
++	u32 cmd;
++
++	/* pointer to the VC (ie physical) address of the allocated memory */
++	u32 addr;
++	/* size of buffer */
++	u32 size;
++	/* opaque handle returned in RELEASED messages */
++	u32 kernel_id;
++	u32 vc_handle;
++};
++
++/*
++ * Client informing VC as to the protocol version it supports.
++ * >=2 requires the released callback, and supports VC asking for memory.
++ * Failure means that the firmware doesn't support this call, and therefore the
++ * client should either fail, or NOT rely on getting the released callback.
++ */
++struct vc_sm_version {
++	u32 version;
++};
++
++/* Request FROM VideoCore for some memory */
++struct vc_sm_vc_mem_request {
++	/* cmd type */
++	u32 cmd;
++
++	/* trans_id (from VPU) */
++	u32 trans_id;
++	/* size of buffer */
++	u32 size;
++	/* alignment of buffer */
++	u32 align;
++	/* resource name (for easier tracking) */
++	char     name[VC_SM_RESOURCE_NAME];
++	/* VPU handle for the resource */
++	u32 vc_handle;
++};
++
++/* Response from the kernel to provide the VPU with some memory */
++struct vc_sm_vc_mem_request_result {
++	/* Transaction identifier for the VPU */
++	u32 trans_id;
++	/* pointer to the physical address of the allocated memory */
++	u32 addr;
++	/* opaque handle returned in RELEASED messages */
++	u32 kernel_id;
++};
++
++/* Union of ALL messages */
++union vc_sm_msg_union_t {
++	struct vc_sm_alloc_t alloc;
++	struct vc_sm_alloc_result_t alloc_result;
++	struct vc_sm_free_t free;
++	struct vc_sm_lock_unlock_t lock_unlock;
++	struct vc_sm_action_clean_t action_clean;
++	struct vc_sm_resize_t resize;
++	struct vc_sm_lock_result_t lock_result;
++	struct vc_sm_result_t result;
++	struct vc_sm_free_all_t free_all;
++	struct vc_sm_import import;
++	struct vc_sm_import_result import_result;
++	struct vc_sm_version version;
++	struct vc_sm_released released;
++	struct vc_sm_vc_mem_request vc_request;
++	struct vc_sm_vc_mem_request_result vc_request_result;
++};
++
++#endif /* __VC_SM_DEFS_H__INCLUDED__ */
+--- /dev/null
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm_knl.h
+@@ -0,0 +1,28 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++/*
++ * VideoCore Shared Memory CMA allocator
++ *
++ * Copyright: 2018, Raspberry Pi (Trading) Ltd
++ *
++ * Based on vc_sm_defs.h from the vmcs_sm driver Copyright Broadcom Corporation.
++ *
++ */
++
++#ifndef __VC_SM_KNL_H__INCLUDED__
++#define __VC_SM_KNL_H__INCLUDED__
++
++#if !defined(__KERNEL__)
++#error "This interface is for kernel use only..."
++#endif
++
++/* Free a previously allocated or imported shared memory handle and block. */
++int vc_sm_cma_free(void *handle);
++
++/* Get an internal resource handle mapped from the external one. */
++int vc_sm_cma_int_handle(void *handle);
++
++/* Import a block of memory into the GPU space. */
++int vc_sm_cma_import_dmabuf(struct dma_buf *dmabuf, void **handle);
++
++#endif /* __VC_SM_KNL_H__INCLUDED__ */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0339-staging-vchiq-mmal-Add-support-for-14bit-Bayer.patch b/target/linux/bcm27xx/patches-5.10/950-0339-staging-vchiq-mmal-Add-support-for-14bit-Bayer.patch
new file mode 100644
index 0000000000..4941ecd862
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0339-staging-vchiq-mmal-Add-support-for-14bit-Bayer.patch
@@ -0,0 +1,27 @@
+From 3791f318fc6368e22471515dfcbc40adeb764999 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 May 2020 18:09:04 +0100
+Subject: [PATCH] staging: vchiq-mmal: Add support for 14bit Bayer
+
+Add in the missing defines.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
+@@ -90,6 +90,12 @@
+ #define MMAL_ENCODING_BAYER_SGBRG12P   MMAL_FOURCC('p', 'G', '1', '2')
+ #define MMAL_ENCODING_BAYER_SRGGB12P   MMAL_FOURCC('p', 'R', '1', '2')
+ 
++//14 bit per pixel Bayer formats.
++#define MMAL_ENCODING_BAYER_SBGGR14P   MMAL_FOURCC('p', 'B', 'E', 'E')
++#define MMAL_ENCODING_BAYER_SGBRG14P   MMAL_FOURCC('p', 'G', 'E', 'E')
++#define MMAL_ENCODING_BAYER_SGRBG14P   MMAL_FOURCC('p', 'g', 'E', 'E')
++#define MMAL_ENCODING_BAYER_SRGGB14P   MMAL_FOURCC('p', 'R', 'E', 'E')
++
+ /* 16 bit per pixel Bayer formats. */
+ #define MMAL_ENCODING_BAYER_SBGGR16    MMAL_FOURCC('B', 'G', '1', '6')
+ #define MMAL_ENCODING_BAYER_SGBRG16    MMAL_FOURCC('G', 'B', '1', '6')
diff --git a/target/linux/bcm27xx/patches-5.10/950-0340-staging-mmal-vchiq-Add-monochrome-image-formats.patch b/target/linux/bcm27xx/patches-5.10/950-0340-staging-mmal-vchiq-Add-monochrome-image-formats.patch
new file mode 100644
index 0000000000..c4c396e3f5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0340-staging-mmal-vchiq-Add-monochrome-image-formats.patch
@@ -0,0 +1,29 @@
+From 8af21994d7bd840cf8d06e099025e5657e533399 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 May 2020 18:11:14 +0100
+Subject: [PATCH] staging: mmal-vchiq: Add monochrome image formats
+
+Adds support for monochrome image formats in the various
+MIPI packings.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
+@@ -102,6 +102,13 @@
+ #define MMAL_ENCODING_BAYER_SGRBG16    MMAL_FOURCC('G', 'R', '1', '6')
+ #define MMAL_ENCODING_BAYER_SRGGB16    MMAL_FOURCC('R', 'G', '1', '6')
+ 
++/* MIPI packed monochrome images */
++#define MMAL_ENCODING_GREY    MMAL_FOURCC('G', 'R', 'E', 'Y')
++#define MMAL_ENCODING_Y10P    MMAL_FOURCC('Y', '1', '0', 'P')
++#define MMAL_ENCODING_Y12P    MMAL_FOURCC('Y', '1', '2', 'P')
++#define MMAL_ENCODING_Y14P    MMAL_FOURCC('Y', '1', '4', 'P')
++#define MMAL_ENCODING_Y16     MMAL_FOURCC('Y', '1', '6', ' ')
++
+ /** An EGL image handle
+  */
+ #define MMAL_ENCODING_EGL_IMAGE        MMAL_FOURCC('E', 'G', 'L', 'I')
diff --git a/target/linux/bcm27xx/patches-5.10/950-0341-staging-mmal-vchiq-Use-vc-sm-cma-to-support-zero-cop.patch b/target/linux/bcm27xx/patches-5.10/950-0341-staging-mmal-vchiq-Use-vc-sm-cma-to-support-zero-cop.patch
new file mode 100644
index 0000000000..87bd5e371a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0341-staging-mmal-vchiq-Use-vc-sm-cma-to-support-zero-cop.patch
@@ -0,0 +1,162 @@
+From 821d92c939fbd94e0946fe93132f0125128c9781 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 25 Sep 2018 16:07:55 +0100
+Subject: [PATCH] staging: mmal-vchiq: Use vc-sm-cma to support zero
+ copy
+
+With the vc-sm-cma driver we can support zero copy of buffers between
+the kernel and VPU. Add this support to mmal-vchiq.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/vchiq-mmal/Kconfig  |  1 +
+ .../vc04_services/vchiq-mmal/mmal-common.h    |  4 ++
+ .../vc04_services/vchiq-mmal/mmal-vchiq.c     | 65 ++++++++++++++++++-
+ .../vc04_services/vchiq-mmal/mmal-vchiq.h     |  1 +
+ 4 files changed, 69 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/Kconfig
++++ b/drivers/staging/vc04_services/vchiq-mmal/Kconfig
+@@ -1,6 +1,7 @@
+ config BCM2835_VCHIQ_MMAL
+ 	tristate "BCM2835 MMAL VCHIQ service"
+ 	depends on BCM2835_VCHIQ
++	select BCM_VC_SM_CMA
+ 	help
+ 	  Enables the MMAL API over VCHIQ interface as used for the
+ 	  majority of the multimedia services on VideoCore.
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-common.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-common.h
+@@ -50,6 +50,10 @@ struct mmal_buffer {
+ 
+ 	struct mmal_msg_context *msg_context;
+ 
++	struct dma_buf *dma_buf;/* Exported dmabuf fd from videobuf2 */
++	void *vcsm_handle;	/* VCSM handle having imported the dmabuf */
++	u32 vc_handle;		/* VC handle to that dmabuf */
++
+ 	u32 cmd;		/* MMAL command. 0=data. */
+ 	unsigned long length;
+ 	u32 mmal_flags;
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+@@ -27,9 +27,11 @@
+ #include <media/videobuf2-vmalloc.h>
+ 
+ #include "mmal-common.h"
++#include "mmal-parameters.h"
+ #include "mmal-vchiq.h"
+ #include "mmal-msg.h"
+ 
++#include "vc-sm-cma/vc_sm_knl.h"
+ /*
+  * maximum number of components supported.
+  * This matches the maximum permitted by default on the VPU
+@@ -419,8 +421,13 @@ buffer_from_host(struct vchiq_mmal_insta
+ 
+ 	/* buffer header */
+ 	m.u.buffer_from_host.buffer_header.cmd = 0;
+-	m.u.buffer_from_host.buffer_header.data =
+-		(u32)(unsigned long)buf->buffer;
++	if (port->zero_copy) {
++		m.u.buffer_from_host.buffer_header.data = buf->vc_handle;
++	} else {
++		m.u.buffer_from_host.buffer_header.data =
++			(u32)(unsigned long)buf->buffer;
++	}
++
+ 	m.u.buffer_from_host.buffer_header.alloc_size = buf->buffer_size;
+ 	if (port->type == MMAL_PORT_TYPE_OUTPUT) {
+ 		m.u.buffer_from_host.buffer_header.length = 0;
+@@ -586,6 +593,22 @@ static void buffer_to_host_cb(struct vch
+ 
+ 		msg_context->u.bulk.status = msg->h.status;
+ 
++	} else if (msg->u.buffer_from_host.is_zero_copy) {
++		/*
++		 * Zero copy buffer, so nothing to do.
++		 * Copy buffer info and make callback.
++		 */
++		msg_context->u.bulk.buffer_used =
++				msg->u.buffer_from_host.buffer_header.length;
++		msg_context->u.bulk.mmal_flags =
++				msg->u.buffer_from_host.buffer_header.flags;
++		msg_context->u.bulk.dts =
++				msg->u.buffer_from_host.buffer_header.dts;
++		msg_context->u.bulk.pts =
++				msg->u.buffer_from_host.buffer_header.pts;
++		msg_context->u.bulk.cmd =
++				msg->u.buffer_from_host.buffer_header.cmd;
++
+ 	} else if (msg->u.buffer_from_host.buffer_header.length == 0) {
+ 		/* empty buffer */
+ 		if (msg->u.buffer_from_host.buffer_header.flags &
+@@ -1530,6 +1553,9 @@ int vchiq_mmal_port_parameter_set(struct
+ 
+ 	mutex_unlock(&instance->vchiq_mutex);
+ 
++	if (parameter == MMAL_PARAMETER_ZERO_COPY && !ret)
++		port->zero_copy = !!(*(bool *)value);
++
+ 	return ret;
+ }
+ EXPORT_SYMBOL_GPL(vchiq_mmal_port_parameter_set);
+@@ -1698,6 +1724,31 @@ int vchiq_mmal_submit_buffer(struct vchi
+ 	unsigned long flags = 0;
+ 	int ret;
+ 
++	/*
++	 * We really want to do this in mmal_vchi_buffer_init but can't as
++	 * videobuf2 won't let us have the dmabuf there.
++	 */
++	if (port->zero_copy && buffer->dma_buf && !buffer->vcsm_handle) {
++		pr_debug("%s: import dmabuf %p\n", __func__, buffer->dma_buf);
++		ret = vc_sm_cma_import_dmabuf(buffer->dma_buf,
++					      &buffer->vcsm_handle);
++		if (ret) {
++			pr_err("%s: vc_sm_import_dmabuf_fd failed, ret %d\n",
++			       __func__, ret);
++			return ret;
++		}
++
++		buffer->vc_handle = vc_sm_cma_int_handle(buffer->vcsm_handle);
++		if (!buffer->vc_handle) {
++			pr_err("%s: vc_sm_int_handle failed %d\n",
++			       __func__, ret);
++			vc_sm_cma_free(buffer->vcsm_handle);
++			return ret;
++		}
++		pr_debug("%s: import dmabuf %p - got vc handle %08X\n",
++			 __func__, buffer->dma_buf, buffer->vc_handle);
++	}
++
+ 	ret = buffer_from_host(instance, port, buffer);
+ 	if (ret == -EINVAL) {
+ 		/* Port is disabled. Queue for when it is enabled. */
+@@ -1731,6 +1782,16 @@ int mmal_vchi_buffer_cleanup(struct mmal
+ 		release_msg_context(msg_context);
+ 	buf->msg_context = NULL;
+ 
++	if (buf->vcsm_handle) {
++		int ret;
++
++		pr_debug("%s: vc_sm_cma_free on handle %p\n", __func__,
++			 buf->vcsm_handle);
++		ret = vc_sm_cma_free(buf->vcsm_handle);
++		if (ret)
++			pr_err("%s: vcsm_free failed, ret %d\n", __func__, ret);
++		buf->vcsm_handle = 0;
++	}
+ 	return 0;
+ }
+ EXPORT_SYMBOL_GPL(mmal_vchi_buffer_cleanup);
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+@@ -49,6 +49,7 @@ typedef void (*vchiq_mmal_buffer_cb)(
+ 
+ struct vchiq_mmal_port {
+ 	u32 enabled:1;
++	u32 zero_copy:1;
+ 	u32 handle;
+ 	u32 type; /* port type, cached to use on port info set */
+ 	u32 index; /* port index, cached to use on port info set */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0342-staging-vc04_services-Add-a-V4L2-M2M-codec-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0342-staging-vc04_services-Add-a-V4L2-M2M-codec-driver.patch
new file mode 100644
index 0000000000..ff716ea497
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0342-staging-vc04_services-Add-a-V4L2-M2M-codec-driver.patch
@@ -0,0 +1,3070 @@
+From 0a0debba799056192927422c9dadf1db6a474580 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 8 Oct 2020 20:24:12 +0100
+Subject: [PATCH] staging: vc04_services: Add a V4L2 M2M codec driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds a V4L2 memory to memory device that wraps the MMAL
+video decode and video_encode components for H264 and MJPEG encode
+and decode, MPEG4, H263, and VP8 decode (and MPEG2 decode
+if the appropriate licence has been purchased).
+
+This patch squashes all the work done in developing the driver
+on the Raspberry Pi rpi-5.4.y kernel branch.
+Thanks to Kieran Bingham, Aman Gupta, Chen-Yu Tsai, and
+Marek Behún for their contributions. Please refer to the
+rpi-5.4.y branch for the full history.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/Kconfig         |    1 +
+ drivers/staging/vc04_services/Makefile        |    1 +
+ .../vc04_services/bcm2835-codec/Kconfig       |   11 +
+ .../vc04_services/bcm2835-codec/Makefile      |    8 +
+ .../staging/vc04_services/bcm2835-codec/TODO  |    1 +
+ .../bcm2835-codec/bcm2835-v4l2-codec.c        | 2984 +++++++++++++++++
+ 6 files changed, 3006 insertions(+)
+ create mode 100644 drivers/staging/vc04_services/bcm2835-codec/Kconfig
+ create mode 100644 drivers/staging/vc04_services/bcm2835-codec/Makefile
+ create mode 100644 drivers/staging/vc04_services/bcm2835-codec/TODO
+ create mode 100644 drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+
+--- a/drivers/staging/vc04_services/Kconfig
++++ b/drivers/staging/vc04_services/Kconfig
+@@ -24,6 +24,7 @@ source "drivers/staging/vc04_services/bc
+ source "drivers/staging/vc04_services/bcm2835-camera/Kconfig"
+ 
+ source "drivers/staging/vc04_services/vc-sm-cma/Kconfig"
++source "drivers/staging/vc04_services/bcm2835-codec/Kconfig"
+ 
+ source "drivers/staging/vc04_services/vchiq-mmal/Kconfig"
+ 
+--- a/drivers/staging/vc04_services/Makefile
++++ b/drivers/staging/vc04_services/Makefile
+@@ -12,6 +12,7 @@ obj-$(CONFIG_SND_BCM2835)		+= bcm2835-au
+ obj-$(CONFIG_VIDEO_BCM2835)		+= bcm2835-camera/
+ obj-$(CONFIG_BCM2835_VCHIQ_MMAL)	+= vchiq-mmal/
+ obj-$(CONFIG_BCM_VC_SM_CMA)		+= vc-sm-cma/
++obj-$(CONFIG_VIDEO_CODEC_BCM2835)	+= bcm2835-codec/
+ 
+ ccflags-y += -I $(srctree)/$(src)/include  -D__VCCOREVER__=0x04000000
+ 
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-codec/Kconfig
+@@ -0,0 +1,11 @@
++config VIDEO_CODEC_BCM2835
++	tristate "BCM2835 Video codec support"
++	depends on MEDIA_SUPPORT && MEDIA_CONTROLLER
++	depends on VIDEO_V4L2 && (ARCH_BCM2835 || COMPILE_TEST)
++	select BCM2835_VCHIQ_MMAL
++	select VIDEOBUF2_DMA_CONTIG
++	select V4L2_MEM2MEM_DEV
++	help
++	  Say Y here to enable the V4L2 video codecs for
++	  Broadcom BCM2835 SoC. This operates over the VCHIQ interface
++	  to a service running on VideoCore.
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-codec/Makefile
+@@ -0,0 +1,8 @@
++# SPDX-License-Identifier: GPL-2.0
++bcm2835-codec-objs := bcm2835-v4l2-codec.o
++
++obj-$(CONFIG_VIDEO_CODEC_BCM2835) += bcm2835-codec.o
++
++ccflags-y += \
++	-I$(srctree)/drivers/staging/vc04_services \
++	-D__VCCOREVER__=0x04000000
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-codec/TODO
+@@ -0,0 +1 @@
++No issues. Depends on VCHIQ which is in staging.
+\ No newline at end of file
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -0,0 +1,2984 @@
++// SPDX-License-Identifier: GPL-2.0
++
++/*
++ * A v4l2-mem2mem device that wraps the video codec MMAL component.
++ *
++ * Copyright 2018 Raspberry Pi (Trading) Ltd.
++ * Author: Dave Stevenson (dave.stevenson@raspberrypi.com)
++ *
++ * Loosely based on the vim2m virtual driver by Pawel Osciak
++ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
++ * Pawel Osciak, <pawel@osciak.com>
++ * Marek Szyprowski, <m.szyprowski@samsung.com>
++ *
++ * Whilst this driver uses the v4l2_mem2mem framework, it does not need the
++ * scheduling aspects, so will always take the buffers, pass them to the VPU,
++ * and then signal the job as complete.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the
++ * License, or (at your option) any later version
++ */
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/fs.h>
++#include <linux/timer.h>
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/platform_device.h>
++#include <linux/syscalls.h>
++
++#include <media/v4l2-mem2mem.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-ioctl.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-event.h>
++#include <media/videobuf2-dma-contig.h>
++
++#include "vchiq-mmal/mmal-encodings.h"
++#include "vchiq-mmal/mmal-msg.h"
++#include "vchiq-mmal/mmal-parameters.h"
++#include "vchiq-mmal/mmal-vchiq.h"
++
++/*
++ * Default /dev/videoN node numbers for decode and encode.
++ * Deliberately avoid the very low numbers as these are often taken by webcams
++ * etc, and simple apps tend to only go for /dev/video0.
++ */
++static int decode_video_nr = 10;
++module_param(decode_video_nr, int, 0644);
++MODULE_PARM_DESC(decode_video_nr, "decoder video device number");
++
++static int encode_video_nr = 11;
++module_param(encode_video_nr, int, 0644);
++MODULE_PARM_DESC(encode_video_nr, "encoder video device number");
++
++static int isp_video_nr = 12;
++module_param(isp_video_nr, int, 0644);
++MODULE_PARM_DESC(isp_video_nr, "isp video device number");
++
++/*
++ * Workaround for GStreamer v4l2convert component not considering Bayer formats
++ * as raw, and therefore not considering a V4L2 device that supports them as
++ * a suitable candidate.
++ */
++static bool disable_bayer;
++module_param(disable_bayer, bool, 0644);
++MODULE_PARM_DESC(disable_bayer, "Disable support for Bayer formats");
++
++static unsigned int debug;
++module_param(debug, uint, 0644);
++MODULE_PARM_DESC(debug, "activates debug info (0-3)");
++
++enum bcm2835_codec_role {
++	DECODE,
++	ENCODE,
++	ISP,
++};
++
++static const char * const roles[] = {
++	"decode",
++	"encode",
++	"isp"
++};
++
++static const char * const components[] = {
++	"ril.video_decode",
++	"ril.video_encode",
++	"ril.isp",
++};
++
++/* Timeout for stop_streaming to allow all buffers to return */
++#define COMPLETE_TIMEOUT (2 * HZ)
++
++#define MIN_W		32
++#define MIN_H		32
++#define MAX_W		1920
++#define MAX_H		1920
++#define BPL_ALIGN	32
++#define DEFAULT_WIDTH	640
++#define DEFAULT_HEIGHT	480
++/*
++ * The unanswered question - what is the maximum size of a compressed frame?
++ * V4L2 mandates that the encoded frame must fit in a single buffer. Sizing
++ * that buffer is a compromise between wasting memory and risking not fitting.
++ * The 1080P version of Big Buck Bunny has some frames that exceed 512kB.
++ * Adopt a moderately arbitrary split at 720P for switching between 512 and
++ * 768kB buffers.
++ */
++#define DEF_COMP_BUF_SIZE_GREATER_720P	(768 << 10)
++#define DEF_COMP_BUF_SIZE_720P_OR_LESS	(512 << 10)
++
++/* Flags that indicate a format can be used for capture/output */
++#define MEM2MEM_CAPTURE		BIT(0)
++#define MEM2MEM_OUTPUT		BIT(1)
++
++#define MEM2MEM_NAME		"bcm2835-codec"
++
++struct bcm2835_codec_fmt {
++	u32	fourcc;
++	int	depth;
++	int	bytesperline_align;
++	u32	flags;
++	u32	mmal_fmt;
++	int	size_multiplier_x2;
++	bool	is_bayer;
++};
++
++static const struct bcm2835_codec_fmt supported_formats[] = {
++	{
++		/* YUV formats */
++		.fourcc			= V4L2_PIX_FMT_YUV420,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_I420,
++		.size_multiplier_x2	= 3,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_YVU420,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_YV12,
++		.size_multiplier_x2	= 3,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_NV12,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_NV12,
++		.size_multiplier_x2	= 3,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_NV21,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_NV21,
++		.size_multiplier_x2	= 3,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_RGB565,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_RGB16,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_YUYV,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_YUYV,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_UYVY,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_UYVY,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_YVYU,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_YVYU,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_VYUY,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_VYUY,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* RGB formats */
++		.fourcc			= V4L2_PIX_FMT_RGB24,
++		.depth			= 24,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_RGB24,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_BGR24,
++		.depth			= 24,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BGR24,
++		.size_multiplier_x2	= 2,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_BGR32,
++		.depth			= 32,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BGRA,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* Bayer formats */
++		/* 8 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB8,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB8,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR8,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR8,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG8,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG8,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG8,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG8,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 10 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB10P,
++		.depth			= 10,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB10P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR10P,
++		.depth			= 10,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR10P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG10P,
++		.depth			= 10,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG10P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG10P,
++		.depth			= 10,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG10P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 12 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB12P,
++		.depth			= 12,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB12P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR12P,
++		.depth			= 12,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR12P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG12P,
++		.depth			= 12,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG12P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG12P,
++		.depth			= 12,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG12P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 14 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB14P,
++		.depth			= 14,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB14P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR14P,
++		.depth			= 14,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR14P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG14P,
++		.depth			= 14,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG14P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG14P,
++		.depth			= 14,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG14P,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 16 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB16,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB16,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR16,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR16,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG16,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG16,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG16,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG16,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* Monochrome MIPI formats */
++		/* 8 bit */
++		.fourcc			= V4L2_PIX_FMT_GREY,
++		.depth			= 8,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_GREY,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 10 bit */
++		.fourcc			= V4L2_PIX_FMT_Y10P,
++		.depth			= 10,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y10P,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 12 bit */
++		.fourcc			= V4L2_PIX_FMT_Y12P,
++		.depth			= 12,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y12P,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 14 bit */
++		.fourcc			= V4L2_PIX_FMT_Y14P,
++		.depth			= 14,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y14P,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 16 bit */
++		.fourcc			= V4L2_PIX_FMT_Y16,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y16,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* Compressed formats */
++		.fourcc			= V4L2_PIX_FMT_H264,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_H264,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_MJPEG,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_MJPEG,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_MPEG4,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_MP4V,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_H263,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_H263,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_MPEG2,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_MP2V,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_VP8,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_VP8,
++	},
++};
++
++struct bcm2835_codec_fmt_list {
++	struct bcm2835_codec_fmt *list;
++	unsigned int num_entries;
++};
++
++struct m2m_mmal_buffer {
++	struct v4l2_m2m_buffer	m2m;
++	struct mmal_buffer	mmal;
++};
++
++/* Per-queue, driver-specific private data */
++struct bcm2835_codec_q_data {
++	/*
++	 * These parameters should be treated as gospel, with everything else
++	 * being determined from them.
++	 */
++	/* Buffer width/height */
++	unsigned int		bytesperline;
++	unsigned int		height;
++	/* Crop size used for selection handling */
++	unsigned int		crop_width;
++	unsigned int		crop_height;
++	bool			selection_set;
++
++	unsigned int		sizeimage;
++	unsigned int		sequence;
++	struct bcm2835_codec_fmt	*fmt;
++
++	/* One extra buffer header so we can send an EOS. */
++	struct m2m_mmal_buffer	eos_buffer;
++	bool			eos_buffer_in_use;	/* debug only */
++};
++
++struct bcm2835_codec_dev {
++	struct platform_device *pdev;
++
++	/* v4l2 devices */
++	struct v4l2_device	v4l2_dev;
++	struct video_device	vfd;
++	/* mutex for the v4l2 device */
++	struct mutex		dev_mutex;
++	atomic_t		num_inst;
++
++	/* allocated mmal instance and components */
++	enum bcm2835_codec_role	role;
++	/* The list of formats supported on input and output queues. */
++	struct bcm2835_codec_fmt_list	supported_fmts[2];
++
++	struct vchiq_mmal_instance	*instance;
++
++	struct v4l2_m2m_dev	*m2m_dev;
++};
++
++struct bcm2835_codec_ctx {
++	struct v4l2_fh		fh;
++	struct bcm2835_codec_dev	*dev;
++
++	struct v4l2_ctrl_handler hdl;
++
++	struct vchiq_mmal_component  *component;
++	bool component_enabled;
++
++	enum v4l2_colorspace	colorspace;
++	enum v4l2_ycbcr_encoding ycbcr_enc;
++	enum v4l2_xfer_func	xfer_func;
++	enum v4l2_quantization	quant;
++
++	/* Source and destination queue data */
++	struct bcm2835_codec_q_data   q_data[2];
++	s32  bitrate;
++	unsigned int	framerate_num;
++	unsigned int	framerate_denom;
++
++	bool aborting;
++	int num_ip_buffers;
++	int num_op_buffers;
++	struct completion frame_cmplt;
++};
++
++struct bcm2835_codec_driver {
++	struct platform_device *pdev;
++	struct media_device	mdev;
++
++	struct bcm2835_codec_dev *encode;
++	struct bcm2835_codec_dev *decode;
++	struct bcm2835_codec_dev *isp;
++};
++
++enum {
++	V4L2_M2M_SRC = 0,
++	V4L2_M2M_DST = 1,
++};
++
++static const struct bcm2835_codec_fmt *get_fmt(u32 mmal_fmt)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(supported_formats); i++) {
++		if (supported_formats[i].mmal_fmt == mmal_fmt &&
++		    (!disable_bayer || !supported_formats[i].is_bayer))
++			return &supported_formats[i];
++	}
++	return NULL;
++}
++
++static inline
++struct bcm2835_codec_fmt_list *get_format_list(struct bcm2835_codec_dev *dev,
++					       bool capture)
++{
++	return &dev->supported_fmts[capture ? 1 : 0];
++}
++
++static
++struct bcm2835_codec_fmt *get_default_format(struct bcm2835_codec_dev *dev,
++					     bool capture)
++{
++	return &dev->supported_fmts[capture ? 1 : 0].list[0];
++}
++
++static
++struct bcm2835_codec_fmt *find_format_pix_fmt(u32 pix_fmt,
++					      struct bcm2835_codec_dev *dev,
++					      bool capture)
++{
++	struct bcm2835_codec_fmt *fmt;
++	unsigned int k;
++	struct bcm2835_codec_fmt_list *fmts =
++					&dev->supported_fmts[capture ? 1 : 0];
++
++	for (k = 0; k < fmts->num_entries; k++) {
++		fmt = &fmts->list[k];
++		if (fmt->fourcc == pix_fmt)
++			break;
++	}
++	if (k == fmts->num_entries)
++		return NULL;
++
++	return &fmts->list[k];
++}
++
++static inline
++struct bcm2835_codec_fmt *find_format(struct v4l2_format *f,
++				      struct bcm2835_codec_dev *dev,
++				      bool capture)
++{
++	return find_format_pix_fmt(f->fmt.pix_mp.pixelformat, dev, capture);
++}
++
++static inline struct bcm2835_codec_ctx *file2ctx(struct file *file)
++{
++	return container_of(file->private_data, struct bcm2835_codec_ctx, fh);
++}
++
++static struct bcm2835_codec_q_data *get_q_data(struct bcm2835_codec_ctx *ctx,
++					       enum v4l2_buf_type type)
++{
++	switch (type) {
++	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
++		return &ctx->q_data[V4L2_M2M_SRC];
++	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
++		return &ctx->q_data[V4L2_M2M_DST];
++	default:
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Invalid queue type %u\n",
++			 __func__, type);
++		break;
++	}
++	return NULL;
++}
++
++static struct vchiq_mmal_port *get_port_data(struct bcm2835_codec_ctx *ctx,
++					     enum v4l2_buf_type type)
++{
++	if (!ctx->component)
++		return NULL;
++
++	switch (type) {
++	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
++		return &ctx->component->input[0];
++	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
++		return &ctx->component->output[0];
++	default:
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Invalid queue type %u\n",
++			 __func__, type);
++		break;
++	}
++	return NULL;
++}
++
++/*
++ * mem2mem callbacks
++ */
++
++/*
++ * job_ready() - check whether an instance is ready to be scheduled to run
++ */
++static int job_ready(void *priv)
++{
++	struct bcm2835_codec_ctx *ctx = priv;
++
++	if (!v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) &&
++	    !v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx))
++		return 0;
++
++	return 1;
++}
++
++static void job_abort(void *priv)
++{
++	struct bcm2835_codec_ctx *ctx = priv;
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s\n", __func__);
++	/* Will cancel the transaction in the next interrupt handler */
++	ctx->aborting = 1;
++}
++
++static inline unsigned int get_sizeimage(int bpl, int width, int height,
++					 struct bcm2835_codec_fmt *fmt)
++{
++	if (fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
++		if (width * height > 1280 * 720)
++			return DEF_COMP_BUF_SIZE_GREATER_720P;
++		else
++			return DEF_COMP_BUF_SIZE_720P_OR_LESS;
++	} else {
++		return (bpl * height * fmt->size_multiplier_x2) >> 1;
++	}
++}
++
++static inline unsigned int get_bytesperline(int width,
++					    struct bcm2835_codec_fmt *fmt)
++{
++	return ALIGN((width * fmt->depth) >> 3, fmt->bytesperline_align);
++}
++
++static void setup_mmal_port_format(struct bcm2835_codec_ctx *ctx,
++				   struct bcm2835_codec_q_data *q_data,
++				   struct vchiq_mmal_port *port)
++{
++	port->format.encoding = q_data->fmt->mmal_fmt;
++
++	if (!(q_data->fmt->flags & V4L2_FMT_FLAG_COMPRESSED)) {
++		/* Raw image format - set width/height */
++		port->es.video.width = (q_data->bytesperline << 3) /
++						q_data->fmt->depth;
++		port->es.video.height = q_data->height;
++		port->es.video.crop.width = q_data->crop_width;
++		port->es.video.crop.height = q_data->crop_height;
++		port->es.video.frame_rate.num = ctx->framerate_num;
++		port->es.video.frame_rate.den = ctx->framerate_denom;
++	} else {
++		/* Compressed format - leave resolution as 0 for decode */
++		if (ctx->dev->role == DECODE) {
++			port->es.video.width = 0;
++			port->es.video.height = 0;
++			port->es.video.crop.width = 0;
++			port->es.video.crop.height = 0;
++		} else {
++			port->es.video.width = q_data->crop_width;
++			port->es.video.height = q_data->height;
++			port->es.video.crop.width = q_data->crop_width;
++			port->es.video.crop.height = q_data->crop_height;
++			port->format.bitrate = ctx->bitrate;
++			port->es.video.frame_rate.num = ctx->framerate_num;
++			port->es.video.frame_rate.den = ctx->framerate_denom;
++		}
++	}
++	port->es.video.crop.x = 0;
++	port->es.video.crop.y = 0;
++
++	port->current_buffer.size = q_data->sizeimage;
++};
++
++static void ip_buffer_cb(struct vchiq_mmal_instance *instance,
++			 struct vchiq_mmal_port *port, int status,
++			 struct mmal_buffer *mmal_buf)
++{
++	struct bcm2835_codec_ctx *ctx = port->cb_ctx/*, *curr_ctx*/;
++	struct m2m_mmal_buffer *buf =
++			container_of(mmal_buf, struct m2m_mmal_buffer, mmal);
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: port %p buf %p length %lu, flags %x\n",
++		 __func__, port, mmal_buf, mmal_buf->length,
++		 mmal_buf->mmal_flags);
++
++	if (buf == &ctx->q_data[V4L2_M2M_SRC].eos_buffer) {
++		/* Do we need to add lcoking to prevent multiple submission of
++		 * the EOS, and therefore handle mutliple return here?
++		 */
++		v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: eos buffer returned.\n",
++			 __func__);
++		ctx->q_data[V4L2_M2M_SRC].eos_buffer_in_use = false;
++		return;
++	}
++
++	if (status) {
++		/* error in transfer */
++		if (buf)
++			/* there was a buffer with the error so return it */
++			vb2_buffer_done(&buf->m2m.vb.vb2_buf,
++					VB2_BUF_STATE_ERROR);
++		return;
++	}
++	if (mmal_buf->cmd) {
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Not expecting cmd msgs on ip callback - %08x\n",
++			 __func__, mmal_buf->cmd);
++		/*
++		 * CHECKME: Should we return here. The buffer shouldn't have a
++		 * message context or vb2 buf associated.
++		 */
++	}
++
++	v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: no error. Return buffer %p\n",
++		 __func__, &buf->m2m.vb.vb2_buf);
++	vb2_buffer_done(&buf->m2m.vb.vb2_buf, VB2_BUF_STATE_DONE);
++
++	ctx->num_ip_buffers++;
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: done %d input buffers\n",
++		 __func__, ctx->num_ip_buffers);
++
++	if (!port->enabled)
++		complete(&ctx->frame_cmplt);
++}
++
++static void queue_res_chg_event(struct bcm2835_codec_ctx *ctx)
++{
++	static const struct v4l2_event ev_src_ch = {
++		.type = V4L2_EVENT_SOURCE_CHANGE,
++		.u.src_change.changes =
++		V4L2_EVENT_SRC_CH_RESOLUTION,
++	};
++
++	v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
++}
++
++static void send_eos_event(struct bcm2835_codec_ctx *ctx)
++{
++	static const struct v4l2_event ev = {
++		.type = V4L2_EVENT_EOS,
++	};
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "Sending EOS event\n");
++
++	v4l2_event_queue_fh(&ctx->fh, &ev);
++}
++
++static void color_mmal2v4l(struct bcm2835_codec_ctx *ctx, u32 mmal_color_space)
++{
++	switch (mmal_color_space) {
++	case MMAL_COLOR_SPACE_ITUR_BT601:
++		ctx->colorspace = V4L2_COLORSPACE_REC709;
++		ctx->xfer_func = V4L2_XFER_FUNC_709;
++		ctx->ycbcr_enc = V4L2_YCBCR_ENC_601;
++		ctx->quant = V4L2_QUANTIZATION_LIM_RANGE;
++		break;
++
++	case MMAL_COLOR_SPACE_ITUR_BT709:
++		ctx->colorspace = V4L2_COLORSPACE_REC709;
++		ctx->xfer_func = V4L2_XFER_FUNC_709;
++		ctx->ycbcr_enc = V4L2_YCBCR_ENC_709;
++		ctx->quant = V4L2_QUANTIZATION_LIM_RANGE;
++		break;
++	}
++}
++
++static void handle_fmt_changed(struct bcm2835_codec_ctx *ctx,
++			       struct mmal_buffer *mmal_buf)
++{
++	struct bcm2835_codec_q_data *q_data;
++	struct mmal_msg_event_format_changed *format =
++		(struct mmal_msg_event_format_changed *)mmal_buf->buffer;
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Format changed: buff size min %u, rec %u, buff num min %u, rec %u\n",
++		 __func__,
++		 format->buffer_size_min,
++		 format->buffer_size_recommended,
++		 format->buffer_num_min,
++		 format->buffer_num_recommended
++		);
++	if (format->format.type != MMAL_ES_TYPE_VIDEO) {
++		v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Format changed but not video %u\n",
++			 __func__, format->format.type);
++		return;
++	}
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Format changed to %ux%u, crop %ux%u, colourspace %08X\n",
++		 __func__, format->es.video.width, format->es.video.height,
++		 format->es.video.crop.width, format->es.video.crop.height,
++		 format->es.video.color_space);
++
++	q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Format was %ux%u, crop %ux%u\n",
++		 __func__, q_data->bytesperline, q_data->height,
++		 q_data->crop_width, q_data->crop_height);
++
++	q_data->crop_width = format->es.video.crop.width;
++	q_data->crop_height = format->es.video.crop.height;
++	q_data->bytesperline = get_bytesperline(format->es.video.width,
++						q_data->fmt);
++
++	q_data->height = format->es.video.height;
++	q_data->sizeimage = format->buffer_size_min;
++	if (format->es.video.color_space)
++		color_mmal2v4l(ctx, format->es.video.color_space);
++
++	queue_res_chg_event(ctx);
++}
++
++static void op_buffer_cb(struct vchiq_mmal_instance *instance,
++			 struct vchiq_mmal_port *port, int status,
++			 struct mmal_buffer *mmal_buf)
++{
++	struct bcm2835_codec_ctx *ctx = port->cb_ctx;
++	struct m2m_mmal_buffer *buf;
++	struct vb2_v4l2_buffer *vb2;
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev,
++		 "%s: status:%d, buf:%p, length:%lu, flags %u, pts %lld\n",
++		 __func__, status, mmal_buf, mmal_buf->length,
++		 mmal_buf->mmal_flags, mmal_buf->pts);
++
++	buf = container_of(mmal_buf, struct m2m_mmal_buffer, mmal);
++	vb2 = &buf->m2m.vb;
++
++	if (status) {
++		/* error in transfer */
++		if (vb2) {
++			/* there was a buffer with the error so return it */
++			vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_ERROR);
++		}
++		return;
++	}
++
++	if (mmal_buf->cmd) {
++		switch (mmal_buf->cmd) {
++		case MMAL_EVENT_FORMAT_CHANGED:
++		{
++			handle_fmt_changed(ctx, mmal_buf);
++			break;
++		}
++		default:
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Unexpected event on output callback - %08x\n",
++				 __func__, mmal_buf->cmd);
++			break;
++		}
++		return;
++	}
++
++	v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: length %lu, flags %x, idx %u\n",
++		 __func__, mmal_buf->length, mmal_buf->mmal_flags,
++		 vb2->vb2_buf.index);
++
++	if (mmal_buf->length == 0) {
++		/* stream ended, or buffer being returned during disable. */
++		v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: Empty buffer - flags %04x",
++			 __func__, mmal_buf->mmal_flags);
++		if (!mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS) {
++			vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_ERROR);
++			if (!port->enabled)
++				complete(&ctx->frame_cmplt);
++			return;
++		}
++	}
++	if (mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS) {
++		/* EOS packet from the VPU */
++		send_eos_event(ctx);
++		vb2->flags |= V4L2_BUF_FLAG_LAST;
++	}
++
++	/* vb2 timestamps in nsecs, mmal in usecs */
++	vb2->vb2_buf.timestamp = mmal_buf->pts * 1000;
++
++	vb2_set_plane_payload(&vb2->vb2_buf, 0, mmal_buf->length);
++	if (mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_KEYFRAME)
++		vb2->flags |= V4L2_BUF_FLAG_KEYFRAME;
++
++	vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_DONE);
++	ctx->num_op_buffers++;
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: done %d output buffers\n",
++		 __func__, ctx->num_op_buffers);
++
++	if (!port->enabled)
++		complete(&ctx->frame_cmplt);
++}
++
++/* vb2_to_mmal_buffer() - converts vb2 buffer header to MMAL
++ *
++ * Copies all the required fields from a VB2 buffer to the MMAL buffer header,
++ * ready for sending to the VPU.
++ */
++static void vb2_to_mmal_buffer(struct m2m_mmal_buffer *buf,
++			       struct vb2_v4l2_buffer *vb2)
++{
++	u64 pts;
++
++	buf->mmal.mmal_flags = 0;
++	if (vb2->flags & V4L2_BUF_FLAG_KEYFRAME)
++		buf->mmal.mmal_flags |= MMAL_BUFFER_HEADER_FLAG_KEYFRAME;
++
++	/*
++	 * Adding this means that the data must be framed correctly as one frame
++	 * per buffer. The underlying decoder has no such requirement, but it
++	 * will reduce latency as the bistream parser will be kicked immediately
++	 * to parse the frame, rather than relying on its own heuristics for
++	 * when to wake up.
++	 */
++	buf->mmal.mmal_flags |= MMAL_BUFFER_HEADER_FLAG_FRAME_END;
++
++	buf->mmal.length = vb2->vb2_buf.planes[0].bytesused;
++	/*
++	 * Minor ambiguity in the V4L2 spec as to whether passing in a 0 length
++	 * buffer, or one with V4L2_BUF_FLAG_LAST set denotes end of stream.
++	 * Handle either.
++	 */
++	if (!buf->mmal.length || vb2->flags & V4L2_BUF_FLAG_LAST)
++		buf->mmal.mmal_flags |= MMAL_BUFFER_HEADER_FLAG_EOS;
++
++	/* vb2 timestamps in nsecs, mmal in usecs */
++	pts = vb2->vb2_buf.timestamp;
++	do_div(pts, 1000);
++	buf->mmal.pts = pts;
++	buf->mmal.dts = MMAL_TIME_UNKNOWN;
++}
++
++/* device_run() - prepares and starts the device
++ *
++ * This simulates all the immediate preparations required before starting
++ * a device. This will be called by the framework when it decides to schedule
++ * a particular instance.
++ */
++static void device_run(void *priv)
++{
++	struct bcm2835_codec_ctx *ctx = priv;
++	struct bcm2835_codec_dev *dev = ctx->dev;
++	struct vb2_v4l2_buffer *src_buf, *dst_buf;
++	struct m2m_mmal_buffer *src_m2m_buf = NULL, *dst_m2m_buf = NULL;
++	struct v4l2_m2m_buffer *m2m;
++	int ret;
++
++	v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: off we go\n", __func__);
++
++	src_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->out_q_ctx);
++	if (src_buf) {
++		m2m = container_of(src_buf, struct v4l2_m2m_buffer, vb);
++		src_m2m_buf = container_of(m2m, struct m2m_mmal_buffer, m2m);
++		vb2_to_mmal_buffer(src_m2m_buf, src_buf);
++
++		ret = vchiq_mmal_submit_buffer(dev->instance,
++					       &ctx->component->input[0],
++					       &src_m2m_buf->mmal);
++		v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: Submitted ip buffer len %lu, pts %llu, flags %04x\n",
++			 __func__, src_m2m_buf->mmal.length,
++			 src_m2m_buf->mmal.pts, src_m2m_buf->mmal.mmal_flags);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed submitting ip buffer\n",
++				 __func__);
++	}
++
++	dst_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->cap_q_ctx);
++	if (dst_buf) {
++		m2m = container_of(dst_buf, struct v4l2_m2m_buffer, vb);
++		dst_m2m_buf = container_of(m2m, struct m2m_mmal_buffer, m2m);
++		vb2_to_mmal_buffer(dst_m2m_buf, dst_buf);
++
++		ret = vchiq_mmal_submit_buffer(dev->instance,
++					       &ctx->component->output[0],
++					       &dst_m2m_buf->mmal);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed submitting op buffer\n",
++				 __func__);
++	}
++
++	v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: Submitted src %p, dst %p\n",
++		 __func__, src_m2m_buf, dst_m2m_buf);
++
++	/* Complete the job here. */
++	v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->fh.m2m_ctx);
++}
++
++/*
++ * video ioctls
++ */
++static int vidioc_querycap(struct file *file, void *priv,
++			   struct v4l2_capability *cap)
++{
++	struct bcm2835_codec_dev *dev = video_drvdata(file);
++
++	strncpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver) - 1);
++	strncpy(cap->card, dev->vfd.name, sizeof(cap->card) - 1);
++	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
++		 MEM2MEM_NAME);
++	return 0;
++}
++
++static int enum_fmt(struct v4l2_fmtdesc *f, struct bcm2835_codec_ctx *ctx,
++		    bool capture)
++{
++	struct bcm2835_codec_fmt *fmt;
++	struct bcm2835_codec_fmt_list *fmts =
++					get_format_list(ctx->dev, capture);
++
++	if (f->index < fmts->num_entries) {
++		/* Format found */
++		fmt = &fmts->list[f->index];
++		f->pixelformat = fmt->fourcc;
++		f->flags = fmt->flags;
++		return 0;
++	}
++
++	/* Format not found */
++	return -EINVAL;
++}
++
++static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	return enum_fmt(f, ctx, true);
++}
++
++static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
++				   struct v4l2_fmtdesc *f)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	return enum_fmt(f, ctx, false);
++}
++
++static int vidioc_g_fmt(struct bcm2835_codec_ctx *ctx, struct v4l2_format *f)
++{
++	struct vb2_queue *vq;
++	struct bcm2835_codec_q_data *q_data;
++
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
++	if (!vq)
++		return -EINVAL;
++
++	q_data = get_q_data(ctx, f->type);
++
++	f->fmt.pix_mp.width			= q_data->crop_width;
++	f->fmt.pix_mp.height			= q_data->height;
++	f->fmt.pix_mp.pixelformat		= q_data->fmt->fourcc;
++	f->fmt.pix_mp.field			= V4L2_FIELD_NONE;
++	f->fmt.pix_mp.colorspace		= ctx->colorspace;
++	f->fmt.pix_mp.plane_fmt[0].sizeimage	= q_data->sizeimage;
++	f->fmt.pix_mp.plane_fmt[0].bytesperline	= q_data->bytesperline;
++	f->fmt.pix_mp.num_planes		= 1;
++	f->fmt.pix_mp.ycbcr_enc			= ctx->ycbcr_enc;
++	f->fmt.pix_mp.quantization		= ctx->quant;
++	f->fmt.pix_mp.xfer_func			= ctx->xfer_func;
++
++	memset(f->fmt.pix_mp.plane_fmt[0].reserved, 0,
++	       sizeof(f->fmt.pix_mp.plane_fmt[0].reserved));
++
++	return 0;
++}
++
++static int vidioc_g_fmt_vid_out(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	return vidioc_g_fmt(file2ctx(file), f);
++}
++
++static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	return vidioc_g_fmt(file2ctx(file), f);
++}
++
++static int vidioc_try_fmt(struct bcm2835_codec_ctx *ctx, struct v4l2_format *f,
++			  struct bcm2835_codec_fmt *fmt)
++{
++	/*
++	 * The V4L2 specification requires the driver to correct the format
++	 * struct if any of the dimensions is unsupported
++	 */
++	if (f->fmt.pix_mp.width > MAX_W)
++		f->fmt.pix_mp.width = MAX_W;
++	if (f->fmt.pix_mp.height > MAX_H)
++		f->fmt.pix_mp.height = MAX_H;
++
++	if (!fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
++		/* Only clip min w/h on capture. Treat 0x0 as unknown. */
++		if (f->fmt.pix_mp.width < MIN_W)
++			f->fmt.pix_mp.width = MIN_W;
++		if (f->fmt.pix_mp.height < MIN_H)
++			f->fmt.pix_mp.height = MIN_H;
++
++		/*
++		 * For decoders the buffer must have a vertical alignment of 16
++		 * lines.
++		 * The selection will reflect any cropping rectangle when only
++		 * some of the pixels are active.
++		 */
++		if (ctx->dev->role == DECODE)
++			f->fmt.pix_mp.height = ALIGN(f->fmt.pix_mp.height, 16);
++	}
++	f->fmt.pix_mp.num_planes = 1;
++	f->fmt.pix_mp.plane_fmt[0].bytesperline =
++		get_bytesperline(f->fmt.pix_mp.width, fmt);
++	f->fmt.pix_mp.plane_fmt[0].sizeimage =
++		get_sizeimage(f->fmt.pix_mp.plane_fmt[0].bytesperline,
++			      f->fmt.pix_mp.width, f->fmt.pix_mp.height, fmt);
++	memset(f->fmt.pix_mp.plane_fmt[0].reserved, 0,
++	       sizeof(f->fmt.pix_mp.plane_fmt[0].reserved));
++
++	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
++
++	return 0;
++}
++
++static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct bcm2835_codec_fmt *fmt;
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	fmt = find_format(f, ctx->dev, true);
++	if (!fmt) {
++		f->fmt.pix_mp.pixelformat = get_default_format(ctx->dev,
++							       true)->fourcc;
++		fmt = find_format(f, ctx->dev, true);
++	}
++
++	return vidioc_try_fmt(ctx, f, fmt);
++}
++
++static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct bcm2835_codec_fmt *fmt;
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	fmt = find_format(f, ctx->dev, false);
++	if (!fmt) {
++		f->fmt.pix_mp.pixelformat = get_default_format(ctx->dev,
++							       false)->fourcc;
++		fmt = find_format(f, ctx->dev, false);
++	}
++
++	if (!f->fmt.pix_mp.colorspace)
++		f->fmt.pix_mp.colorspace = ctx->colorspace;
++
++	return vidioc_try_fmt(ctx, f, fmt);
++}
++
++static int vidioc_s_fmt(struct bcm2835_codec_ctx *ctx, struct v4l2_format *f,
++			unsigned int requested_height)
++{
++	struct bcm2835_codec_q_data *q_data;
++	struct vb2_queue *vq;
++	struct vchiq_mmal_port *port;
++	bool update_capture_port = false;
++	int ret;
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev,	"Setting format for type %d, wxh: %dx%d, fmt: %08x, size %u\n",
++		 f->type, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
++		 f->fmt.pix_mp.pixelformat,
++		 f->fmt.pix_mp.plane_fmt[0].sizeimage);
++
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
++	if (!vq)
++		return -EINVAL;
++
++	q_data = get_q_data(ctx, f->type);
++	if (!q_data)
++		return -EINVAL;
++
++	if (vb2_is_busy(vq)) {
++		v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
++		return -EBUSY;
++	}
++
++	q_data->fmt = find_format(f, ctx->dev,
++				  f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
++	q_data->crop_width = f->fmt.pix_mp.width;
++	q_data->height = f->fmt.pix_mp.height;
++	if (!q_data->selection_set)
++		q_data->crop_height = requested_height;
++
++	/*
++	 * Copying the behaviour of vicodec which retains a single set of
++	 * colorspace parameters for both input and output.
++	 */
++	ctx->colorspace = f->fmt.pix_mp.colorspace;
++	ctx->xfer_func = f->fmt.pix_mp.xfer_func;
++	ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
++	ctx->quant = f->fmt.pix_mp.quantization;
++
++	/* All parameters should have been set correctly by try_fmt */
++	q_data->bytesperline = f->fmt.pix_mp.plane_fmt[0].bytesperline;
++	q_data->sizeimage = f->fmt.pix_mp.plane_fmt[0].sizeimage;
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev,	"Calulated bpl as %u, size %u\n",
++		 q_data->bytesperline, q_data->sizeimage);
++
++	if (ctx->dev->role == DECODE &&
++	    q_data->fmt->flags & V4L2_FMT_FLAG_COMPRESSED &&
++	    q_data->crop_width && q_data->height) {
++		/*
++		 * On the decoder, if provided with a resolution on the input
++		 * side, then replicate that to the output side.
++		 * GStreamer appears not to support V4L2_EVENT_SOURCE_CHANGE,
++		 * nor set up a resolution on the output side, therefore
++		 * we can't decode anything at a resolution other than the
++		 * default one.
++		 */
++		struct bcm2835_codec_q_data *q_data_dst =
++						&ctx->q_data[V4L2_M2M_DST];
++
++		q_data_dst->crop_width = q_data->crop_width;
++		q_data_dst->crop_height = q_data->crop_height;
++		q_data_dst->height = ALIGN(q_data->crop_height, 16);
++
++		q_data_dst->bytesperline =
++			get_bytesperline(f->fmt.pix_mp.width, q_data_dst->fmt);
++		q_data_dst->sizeimage = get_sizeimage(q_data_dst->bytesperline,
++						      q_data_dst->crop_width,
++						      q_data_dst->height,
++						      q_data_dst->fmt);
++		update_capture_port = true;
++	}
++
++	/* If we have a component then setup the port as well */
++	port = get_port_data(ctx, vq->type);
++	if (!port)
++		return 0;
++
++	setup_mmal_port_format(ctx, q_data, port);
++	ret = vchiq_mmal_port_set_format(ctx->dev->instance, port);
++	if (ret) {
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed vchiq_mmal_port_set_format on port, ret %d\n",
++			 __func__, ret);
++		ret = -EINVAL;
++	}
++
++	if (q_data->sizeimage < port->minimum_buffer.size) {
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Current buffer size of %u < min buf size %u - driver mismatch to MMAL\n",
++			 __func__, q_data->sizeimage,
++			 port->minimum_buffer.size);
++	}
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev,	"Set format for type %d, wxh: %dx%d, fmt: %08x, size %u\n",
++		 f->type, q_data->crop_width, q_data->height,
++		 q_data->fmt->fourcc, q_data->sizeimage);
++
++	if (update_capture_port) {
++		struct vchiq_mmal_port *port_dst = &ctx->component->output[0];
++		struct bcm2835_codec_q_data *q_data_dst =
++						&ctx->q_data[V4L2_M2M_DST];
++
++		setup_mmal_port_format(ctx, q_data_dst, port_dst);
++		ret = vchiq_mmal_port_set_format(ctx->dev->instance, port_dst);
++		if (ret) {
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed vchiq_mmal_port_set_format on output port, ret %d\n",
++				 __func__, ret);
++			ret = -EINVAL;
++		}
++	}
++	return ret;
++}
++
++static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	unsigned int height = f->fmt.pix_mp.height;
++	int ret;
++
++	ret = vidioc_try_fmt_vid_cap(file, priv, f);
++	if (ret)
++		return ret;
++
++	return vidioc_s_fmt(file2ctx(file), f, height);
++}
++
++static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
++				struct v4l2_format *f)
++{
++	unsigned int height = f->fmt.pix_mp.height;
++	int ret;
++
++	ret = vidioc_try_fmt_vid_out(file, priv, f);
++	if (ret)
++		return ret;
++
++	ret = vidioc_s_fmt(file2ctx(file), f, height);
++	return ret;
++}
++
++static int vidioc_g_selection(struct file *file, void *priv,
++			      struct v4l2_selection *s)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++	struct bcm2835_codec_q_data *q_data;
++
++	/*
++	 * The selection API takes V4L2_BUF_TYPE_VIDEO_CAPTURE and
++	 * V4L2_BUF_TYPE_VIDEO_OUTPUT, even if the device implements the MPLANE
++	 * API. The V4L2 core will have converted the MPLANE variants to
++	 * non-MPLANE.
++	 * Open code this instead of using get_q_data in this case.
++	 */
++	switch (s->type) {
++	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
++		/* CAPTURE on encoder is not valid. */
++		if (ctx->dev->role == ENCODE)
++			return -EINVAL;
++		q_data = &ctx->q_data[V4L2_M2M_DST];
++		break;
++	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
++		/* OUTPUT on deoder is not valid. */
++		if (ctx->dev->role == DECODE)
++			return -EINVAL;
++		q_data = &ctx->q_data[V4L2_M2M_SRC];
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	switch (ctx->dev->role) {
++	case DECODE:
++		switch (s->target) {
++		case V4L2_SEL_TGT_COMPOSE_DEFAULT:
++		case V4L2_SEL_TGT_COMPOSE:
++			s->r.left = 0;
++			s->r.top = 0;
++			s->r.width = q_data->crop_width;
++			s->r.height = q_data->crop_height;
++			break;
++		case V4L2_SEL_TGT_COMPOSE_BOUNDS:
++			s->r.left = 0;
++			s->r.top = 0;
++			s->r.width = q_data->crop_width;
++			s->r.height = q_data->crop_height;
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	case ENCODE:
++		switch (s->target) {
++		case V4L2_SEL_TGT_CROP_DEFAULT:
++		case V4L2_SEL_TGT_CROP_BOUNDS:
++			s->r.top = 0;
++			s->r.left = 0;
++			s->r.width = q_data->bytesperline;
++			s->r.height = q_data->height;
++			break;
++		case V4L2_SEL_TGT_CROP:
++			s->r.top = 0;
++			s->r.left = 0;
++			s->r.width = q_data->crop_width;
++			s->r.height = q_data->crop_height;
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	case ISP:
++		break;
++	}
++
++	return 0;
++}
++
++static int vidioc_s_selection(struct file *file, void *priv,
++			      struct v4l2_selection *s)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++	struct bcm2835_codec_q_data *q_data = NULL;
++
++	/*
++	 * The selection API takes V4L2_BUF_TYPE_VIDEO_CAPTURE and
++	 * V4L2_BUF_TYPE_VIDEO_OUTPUT, even if the device implements the MPLANE
++	 * API. The V4L2 core will have converted the MPLANE variants to
++	 * non-MPLANE.
++	 *
++	 * Open code this instead of using get_q_data in this case.
++	 */
++	switch (s->type) {
++	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
++		/* CAPTURE on encoder is not valid. */
++		if (ctx->dev->role == ENCODE)
++			return -EINVAL;
++		q_data = &ctx->q_data[V4L2_M2M_DST];
++		break;
++	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
++		/* OUTPUT on deoder is not valid. */
++		if (ctx->dev->role == DECODE)
++			return -EINVAL;
++		q_data = &ctx->q_data[V4L2_M2M_SRC];
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: ctx %p, type %d, q_data %p, target %d, rect x/y %d/%d, w/h %ux%u\n",
++		 __func__, ctx, s->type, q_data, s->target, s->r.left, s->r.top,
++		 s->r.width, s->r.height);
++
++	switch (ctx->dev->role) {
++	case DECODE:
++		switch (s->target) {
++		case V4L2_SEL_TGT_COMPOSE:
++			/* Accept cropped image */
++			s->r.left = 0;
++			s->r.top = 0;
++			s->r.width = min(s->r.width, q_data->crop_width);
++			s->r.height = min(s->r.height, q_data->height);
++			q_data->crop_width = s->r.width;
++			q_data->crop_height = s->r.height;
++			q_data->selection_set = true;
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	case ENCODE:
++		switch (s->target) {
++		case V4L2_SEL_TGT_CROP:
++			/* Only support crop from (0,0) */
++			s->r.top = 0;
++			s->r.left = 0;
++			s->r.width = min(s->r.width, q_data->crop_width);
++			s->r.height = min(s->r.height, q_data->crop_height);
++			q_data->crop_width = s->r.width;
++			q_data->crop_height = s->r.height;
++			q_data->selection_set = true;
++			break;
++		default:
++			return -EINVAL;
++		}
++		break;
++	case ISP:
++		break;
++	}
++
++	return 0;
++}
++
++static int vidioc_s_parm(struct file *file, void *priv,
++			 struct v4l2_streamparm *parm)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	if (parm->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
++		return -EINVAL;
++
++	if (!parm->parm.output.timeperframe.denominator ||
++	    !parm->parm.output.timeperframe.numerator)
++		return -EINVAL;
++
++	ctx->framerate_num =
++			parm->parm.output.timeperframe.denominator;
++	ctx->framerate_denom =
++			parm->parm.output.timeperframe.numerator;
++
++	parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
++
++	return 0;
++}
++
++static int vidioc_g_parm(struct file *file, void *priv,
++			 struct v4l2_streamparm *parm)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	if (parm->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
++		return -EINVAL;
++
++	parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
++	parm->parm.output.timeperframe.denominator =
++			ctx->framerate_num;
++	parm->parm.output.timeperframe.numerator =
++			ctx->framerate_denom;
++
++	return 0;
++}
++
++static int vidioc_subscribe_evt(struct v4l2_fh *fh,
++				const struct v4l2_event_subscription *sub)
++{
++	switch (sub->type) {
++	case V4L2_EVENT_EOS:
++		return v4l2_event_subscribe(fh, sub, 2, NULL);
++	case V4L2_EVENT_SOURCE_CHANGE:
++		return v4l2_src_change_event_subscribe(fh, sub);
++	default:
++		return v4l2_ctrl_subscribe_event(fh, sub);
++	}
++}
++
++static int bcm2835_codec_set_level_profile(struct bcm2835_codec_ctx *ctx,
++					   struct v4l2_ctrl *ctrl)
++{
++	struct mmal_parameter_video_profile param;
++	int param_size = sizeof(param);
++	int ret;
++
++	/*
++	 * Level and Profile are set via the same MMAL parameter.
++	 * Retrieve the current settings and amend the one that has changed.
++	 */
++	ret = vchiq_mmal_port_parameter_get(ctx->dev->instance,
++					    &ctx->component->output[0],
++					    MMAL_PARAMETER_PROFILE,
++					    &param,
++					    &param_size);
++	if (ret)
++		return ret;
++
++	switch (ctrl->id) {
++	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
++		switch (ctrl->val) {
++		case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE:
++			param.profile = MMAL_VIDEO_PROFILE_H264_BASELINE;
++			break;
++		case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE:
++			param.profile =
++				MMAL_VIDEO_PROFILE_H264_CONSTRAINED_BASELINE;
++			break;
++		case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN:
++			param.profile = MMAL_VIDEO_PROFILE_H264_MAIN;
++			break;
++		case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH:
++			param.profile = MMAL_VIDEO_PROFILE_H264_HIGH;
++			break;
++		default:
++			/* Should never get here */
++			break;
++		}
++		break;
++
++	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
++		switch (ctrl->val) {
++		case V4L2_MPEG_VIDEO_H264_LEVEL_1_0:
++			param.level = MMAL_VIDEO_LEVEL_H264_1;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_1B:
++			param.level = MMAL_VIDEO_LEVEL_H264_1b;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_1_1:
++			param.level = MMAL_VIDEO_LEVEL_H264_11;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_1_2:
++			param.level = MMAL_VIDEO_LEVEL_H264_12;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_1_3:
++			param.level = MMAL_VIDEO_LEVEL_H264_13;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_2_0:
++			param.level = MMAL_VIDEO_LEVEL_H264_2;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_2_1:
++			param.level = MMAL_VIDEO_LEVEL_H264_21;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_2_2:
++			param.level = MMAL_VIDEO_LEVEL_H264_22;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_3_0:
++			param.level = MMAL_VIDEO_LEVEL_H264_3;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
++			param.level = MMAL_VIDEO_LEVEL_H264_31;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
++			param.level = MMAL_VIDEO_LEVEL_H264_32;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
++			param.level = MMAL_VIDEO_LEVEL_H264_4;
++			break;
++		default:
++			/* Should never get here */
++			break;
++		}
++	}
++	ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++					    &ctx->component->output[0],
++					    MMAL_PARAMETER_PROFILE,
++					    &param,
++					    param_size);
++
++	return ret;
++}
++
++static int bcm2835_codec_s_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct bcm2835_codec_ctx *ctx =
++		container_of(ctrl->handler, struct bcm2835_codec_ctx, hdl);
++	int ret = 0;
++
++	switch (ctrl->id) {
++	case V4L2_CID_MPEG_VIDEO_BITRATE:
++		ctx->bitrate = ctrl->val;
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_VIDEO_BIT_RATE,
++						    &ctrl->val,
++						    sizeof(ctrl->val));
++		break;
++
++	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
++		u32 bitrate_mode;
++
++		if (!ctx->component)
++			break;
++
++		switch (ctrl->val) {
++		default:
++		case V4L2_MPEG_VIDEO_BITRATE_MODE_VBR:
++			bitrate_mode = MMAL_VIDEO_RATECONTROL_VARIABLE;
++			break;
++		case V4L2_MPEG_VIDEO_BITRATE_MODE_CBR:
++			bitrate_mode = MMAL_VIDEO_RATECONTROL_CONSTANT;
++			break;
++		}
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_RATECONTROL,
++						    &bitrate_mode,
++						    sizeof(bitrate_mode));
++		break;
++	}
++	case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER:
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_VIDEO_ENCODE_INLINE_HEADER,
++						    &ctrl->val,
++						    sizeof(ctrl->val));
++		break;
++
++	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_INTRAPERIOD,
++						    &ctrl->val,
++						    sizeof(ctrl->val));
++		break;
++
++	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
++	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
++		if (!ctx->component)
++			break;
++
++		ret = bcm2835_codec_set_level_profile(ctx, ctrl);
++		break;
++
++	case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME: {
++		u32 mmal_bool = 1;
++
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_VIDEO_REQUEST_I_FRAME,
++						    &mmal_bool,
++						    sizeof(mmal_bool));
++		break;
++	}
++
++	default:
++		v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n");
++		return -EINVAL;
++	}
++
++	if (ret)
++		v4l2_err(&ctx->dev->v4l2_dev, "Failed setting ctrl %08x, ret %d\n",
++			 ctrl->id, ret);
++	return ret ? -EINVAL : 0;
++}
++
++static const struct v4l2_ctrl_ops bcm2835_codec_ctrl_ops = {
++	.s_ctrl = bcm2835_codec_s_ctrl,
++};
++
++static int vidioc_try_decoder_cmd(struct file *file, void *priv,
++				  struct v4l2_decoder_cmd *cmd)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	if (ctx->dev->role != DECODE)
++		return -EINVAL;
++
++	switch (cmd->cmd) {
++	case V4L2_DEC_CMD_STOP:
++		if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK) {
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: DEC cmd->flags=%u stop to black not supported",
++				 __func__, cmd->flags);
++			return -EINVAL;
++		}
++		break;
++	case V4L2_DEC_CMD_START:
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static int vidioc_decoder_cmd(struct file *file, void *priv,
++			      struct v4l2_decoder_cmd *cmd)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++	struct bcm2835_codec_q_data *q_data = &ctx->q_data[V4L2_M2M_SRC];
++	int ret;
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s, cmd %u", __func__,
++		 cmd->cmd);
++	ret = vidioc_try_decoder_cmd(file, priv, cmd);
++	if (ret)
++		return ret;
++
++	switch (cmd->cmd) {
++	case V4L2_DEC_CMD_STOP:
++		if (q_data->eos_buffer_in_use)
++			v4l2_err(&ctx->dev->v4l2_dev, "EOS buffers already in use\n");
++		q_data->eos_buffer_in_use = true;
++
++		q_data->eos_buffer.mmal.buffer_size = 0;
++		q_data->eos_buffer.mmal.length = 0;
++		q_data->eos_buffer.mmal.mmal_flags =
++						MMAL_BUFFER_HEADER_FLAG_EOS;
++		q_data->eos_buffer.mmal.pts = 0;
++		q_data->eos_buffer.mmal.dts = 0;
++
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_submit_buffer(ctx->dev->instance,
++					       &ctx->component->input[0],
++					       &q_data->eos_buffer.mmal);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev,
++				 "%s: EOS buffer submit failed %d\n",
++				 __func__, ret);
++
++		break;
++
++	case V4L2_DEC_CMD_START:
++		/* Do we need to do anything here? */
++		break;
++
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int vidioc_try_encoder_cmd(struct file *file, void *priv,
++				  struct v4l2_encoder_cmd *cmd)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	if (ctx->dev->role != ENCODE)
++		return -EINVAL;
++
++	switch (cmd->cmd) {
++	case V4L2_ENC_CMD_STOP:
++		break;
++
++	case V4L2_ENC_CMD_START:
++		/* Do we need to do anything here? */
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static int vidioc_encoder_cmd(struct file *file, void *priv,
++			      struct v4l2_encoder_cmd *cmd)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++	struct bcm2835_codec_q_data *q_data = &ctx->q_data[V4L2_M2M_SRC];
++	int ret;
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s, cmd %u", __func__,
++		 cmd->cmd);
++	ret = vidioc_try_encoder_cmd(file, priv, cmd);
++	if (ret)
++		return ret;
++
++	switch (cmd->cmd) {
++	case V4L2_ENC_CMD_STOP:
++		if (q_data->eos_buffer_in_use)
++			v4l2_err(&ctx->dev->v4l2_dev, "EOS buffers already in use\n");
++		q_data->eos_buffer_in_use = true;
++
++		q_data->eos_buffer.mmal.buffer_size = 0;
++		q_data->eos_buffer.mmal.length = 0;
++		q_data->eos_buffer.mmal.mmal_flags =
++						MMAL_BUFFER_HEADER_FLAG_EOS;
++		q_data->eos_buffer.mmal.pts = 0;
++		q_data->eos_buffer.mmal.dts = 0;
++
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_submit_buffer(ctx->dev->instance,
++					       &ctx->component->input[0],
++					       &q_data->eos_buffer.mmal);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev,
++				 "%s: EOS buffer submit failed %d\n",
++				 __func__, ret);
++
++		break;
++	case V4L2_ENC_CMD_START:
++		/* Do we need to do anything here? */
++		break;
++
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int vidioc_enum_framesizes(struct file *file, void *fh,
++				  struct v4l2_frmsizeenum *fsize)
++{
++	struct bcm2835_codec_fmt *fmt;
++
++	fmt = find_format_pix_fmt(fsize->pixel_format, file2ctx(file)->dev,
++				  true);
++	if (!fmt)
++		fmt = find_format_pix_fmt(fsize->pixel_format,
++					  file2ctx(file)->dev,
++					  false);
++
++	if (!fmt)
++		return -EINVAL;
++
++	if (fsize->index)
++		return -EINVAL;
++
++	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
++
++	fsize->stepwise.min_width = MIN_W;
++	fsize->stepwise.max_width = MAX_W;
++	fsize->stepwise.step_width = 1;
++	fsize->stepwise.min_height = MIN_H;
++	fsize->stepwise.max_height = MAX_H;
++	fsize->stepwise.step_height = 1;
++
++	return 0;
++}
++
++static const struct v4l2_ioctl_ops bcm2835_codec_ioctl_ops = {
++	.vidioc_querycap	= vidioc_querycap,
++
++	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
++	.vidioc_g_fmt_vid_cap_mplane	= vidioc_g_fmt_vid_cap,
++	.vidioc_try_fmt_vid_cap_mplane	= vidioc_try_fmt_vid_cap,
++	.vidioc_s_fmt_vid_cap_mplane	= vidioc_s_fmt_vid_cap,
++
++	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
++	.vidioc_g_fmt_vid_out_mplane	= vidioc_g_fmt_vid_out,
++	.vidioc_try_fmt_vid_out_mplane	= vidioc_try_fmt_vid_out,
++	.vidioc_s_fmt_vid_out_mplane	= vidioc_s_fmt_vid_out,
++
++	.vidioc_reqbufs		= v4l2_m2m_ioctl_reqbufs,
++	.vidioc_querybuf	= v4l2_m2m_ioctl_querybuf,
++	.vidioc_qbuf		= v4l2_m2m_ioctl_qbuf,
++	.vidioc_dqbuf		= v4l2_m2m_ioctl_dqbuf,
++	.vidioc_prepare_buf	= v4l2_m2m_ioctl_prepare_buf,
++	.vidioc_create_bufs	= v4l2_m2m_ioctl_create_bufs,
++	.vidioc_expbuf		= v4l2_m2m_ioctl_expbuf,
++
++	.vidioc_streamon	= v4l2_m2m_ioctl_streamon,
++	.vidioc_streamoff	= v4l2_m2m_ioctl_streamoff,
++
++	.vidioc_g_selection	= vidioc_g_selection,
++	.vidioc_s_selection	= vidioc_s_selection,
++
++	.vidioc_g_parm		= vidioc_g_parm,
++	.vidioc_s_parm		= vidioc_s_parm,
++
++	.vidioc_subscribe_event = vidioc_subscribe_evt,
++	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
++
++	.vidioc_decoder_cmd = vidioc_decoder_cmd,
++	.vidioc_try_decoder_cmd = vidioc_try_decoder_cmd,
++	.vidioc_encoder_cmd = vidioc_encoder_cmd,
++	.vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
++	.vidioc_enum_framesizes = vidioc_enum_framesizes,
++};
++
++static int bcm2835_codec_set_ctrls(struct bcm2835_codec_ctx *ctx)
++{
++	/*
++	 * Query the control handler for the value of the various controls and
++	 * set them.
++	 */
++	const u32 control_ids[] = {
++		V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
++		V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER,
++		V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
++		V4L2_CID_MPEG_VIDEO_H264_LEVEL,
++		V4L2_CID_MPEG_VIDEO_H264_PROFILE,
++	};
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(control_ids); i++) {
++		struct v4l2_ctrl *ctrl;
++
++		ctrl = v4l2_ctrl_find(&ctx->hdl, control_ids[i]);
++		if (ctrl)
++			bcm2835_codec_s_ctrl(ctrl);
++	}
++
++	return 0;
++}
++
++static int bcm2835_codec_create_component(struct bcm2835_codec_ctx *ctx)
++{
++	struct bcm2835_codec_dev *dev = ctx->dev;
++	unsigned int enable = 1;
++	int ret;
++
++	ret = vchiq_mmal_component_init(dev->instance, components[dev->role],
++					&ctx->component);
++	if (ret < 0) {
++		v4l2_err(&dev->v4l2_dev, "%s: failed to create component %s\n",
++			 __func__, components[dev->role]);
++		return -ENOMEM;
++	}
++
++	vchiq_mmal_port_parameter_set(dev->instance, &ctx->component->input[0],
++				      MMAL_PARAMETER_ZERO_COPY, &enable,
++				      sizeof(enable));
++	vchiq_mmal_port_parameter_set(dev->instance, &ctx->component->output[0],
++				      MMAL_PARAMETER_ZERO_COPY, &enable,
++				      sizeof(enable));
++
++	setup_mmal_port_format(ctx, &ctx->q_data[V4L2_M2M_SRC],
++			       &ctx->component->input[0]);
++
++	setup_mmal_port_format(ctx, &ctx->q_data[V4L2_M2M_DST],
++			       &ctx->component->output[0]);
++
++	ret = vchiq_mmal_port_set_format(dev->instance,
++					 &ctx->component->input[0]);
++	if (ret < 0) {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: vchiq_mmal_port_set_format ip port failed\n",
++			 __func__);
++		goto destroy_component;
++	}
++
++	ret = vchiq_mmal_port_set_format(dev->instance,
++					 &ctx->component->output[0]);
++	if (ret < 0) {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: vchiq_mmal_port_set_format op port failed\n",
++			 __func__);
++		goto destroy_component;
++	}
++
++	if (dev->role == ENCODE) {
++		u32 param = 1;
++
++		if (ctx->q_data[V4L2_M2M_SRC].sizeimage <
++			ctx->component->output[0].minimum_buffer.size)
++			v4l2_err(&dev->v4l2_dev, "buffer size mismatch sizeimage %u < min size %u\n",
++				 ctx->q_data[V4L2_M2M_SRC].sizeimage,
++				 ctx->component->output[0].minimum_buffer.size);
++
++		/* Now we have a component we can set all the ctrls */
++		bcm2835_codec_set_ctrls(ctx);
++
++		/* Enable SPS Timing header so framerate information is encoded
++		 * in the H264 header.
++		 */
++		vchiq_mmal_port_parameter_set(ctx->dev->instance,
++					      &ctx->component->output[0],
++					      MMAL_PARAMETER_VIDEO_ENCODE_SPS_TIMING,
++					      &param, sizeof(param));
++
++		/* Enable inserting headers into the first frame */
++		vchiq_mmal_port_parameter_set(ctx->dev->instance,
++					      &ctx->component->control,
++					      MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
++					      &param, sizeof(param));
++		/*
++		 * Avoid fragmenting the buffers over multiple frames (unless
++		 * the frame is bigger than the whole buffer)
++		 */
++		vchiq_mmal_port_parameter_set(ctx->dev->instance,
++					      &ctx->component->control,
++					      MMAL_PARAMETER_MINIMISE_FRAGMENTATION,
++					      &param, sizeof(param));
++	} else {
++		if (ctx->q_data[V4L2_M2M_DST].sizeimage <
++			ctx->component->output[0].minimum_buffer.size)
++			v4l2_err(&dev->v4l2_dev, "buffer size mismatch sizeimage %u < min size %u\n",
++				 ctx->q_data[V4L2_M2M_DST].sizeimage,
++				 ctx->component->output[0].minimum_buffer.size);
++	}
++	v4l2_dbg(2, debug, &dev->v4l2_dev, "%s: component created as %s\n",
++		 __func__, components[dev->role]);
++
++	return 0;
++
++destroy_component:
++	vchiq_mmal_component_finalise(ctx->dev->instance, ctx->component);
++	ctx->component = NULL;
++
++	return ret;
++}
++
++/*
++ * Queue operations
++ */
++
++static int bcm2835_codec_queue_setup(struct vb2_queue *vq,
++				     unsigned int *nbuffers,
++				     unsigned int *nplanes,
++				     unsigned int sizes[],
++				     struct device *alloc_devs[])
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vq);
++	struct bcm2835_codec_q_data *q_data;
++	struct vchiq_mmal_port *port;
++	unsigned int size;
++
++	q_data = get_q_data(ctx, vq->type);
++	if (!q_data)
++		return -EINVAL;
++
++	if (!ctx->component)
++		if (bcm2835_codec_create_component(ctx))
++			return -EINVAL;
++
++	port = get_port_data(ctx, vq->type);
++
++	size = q_data->sizeimage;
++
++	if (*nplanes)
++		return sizes[0] < size ? -EINVAL : 0;
++
++	*nplanes = 1;
++
++	sizes[0] = size;
++	port->current_buffer.size = size;
++
++	if (*nbuffers < port->minimum_buffer.num)
++		*nbuffers = port->minimum_buffer.num;
++	/* Add one buffer to take an EOS */
++	port->current_buffer.num = *nbuffers + 1;
++
++	return 0;
++}
++
++static int bcm2835_codec_mmal_buf_cleanup(struct mmal_buffer *mmal_buf)
++{
++	mmal_vchi_buffer_cleanup(mmal_buf);
++
++	if (mmal_buf->dma_buf) {
++		dma_buf_put(mmal_buf->dma_buf);
++		mmal_buf->dma_buf = NULL;
++	}
++
++	return 0;
++}
++
++static int bcm2835_codec_buf_init(struct vb2_buffer *vb)
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++	struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
++	struct v4l2_m2m_buffer *m2m = container_of(vb2, struct v4l2_m2m_buffer,
++						   vb);
++	struct m2m_mmal_buffer *buf = container_of(m2m, struct m2m_mmal_buffer,
++						   m2m);
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: ctx:%p, vb %p\n",
++		 __func__, ctx, vb);
++	buf->mmal.buffer = vb2_plane_vaddr(&buf->m2m.vb.vb2_buf, 0);
++	buf->mmal.buffer_size = vb2_plane_size(&buf->m2m.vb.vb2_buf, 0);
++
++	mmal_vchi_buffer_init(ctx->dev->instance, &buf->mmal);
++
++	return 0;
++}
++
++static int bcm2835_codec_buf_prepare(struct vb2_buffer *vb)
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++	struct bcm2835_codec_q_data *q_data;
++	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
++	struct v4l2_m2m_buffer *m2m = container_of(vbuf, struct v4l2_m2m_buffer,
++						   vb);
++	struct m2m_mmal_buffer *buf = container_of(m2m, struct m2m_mmal_buffer,
++						   m2m);
++	struct dma_buf *dma_buf;
++	int ret;
++
++	v4l2_dbg(4, debug, &ctx->dev->v4l2_dev, "%s: type: %d ptr %p\n",
++		 __func__, vb->vb2_queue->type, vb);
++
++	q_data = get_q_data(ctx, vb->vb2_queue->type);
++	if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
++		if (vbuf->field == V4L2_FIELD_ANY)
++			vbuf->field = V4L2_FIELD_NONE;
++		if (vbuf->field != V4L2_FIELD_NONE) {
++			v4l2_err(&ctx->dev->v4l2_dev, "%s field isn't supported\n",
++				 __func__);
++			return -EINVAL;
++		}
++	}
++
++	if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
++		v4l2_err(&ctx->dev->v4l2_dev, "%s data will not fit into plane (%lu < %lu)\n",
++			 __func__, vb2_plane_size(vb, 0),
++			 (long)q_data->sizeimage);
++		return -EINVAL;
++	}
++
++	if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type))
++		vb2_set_plane_payload(vb, 0, q_data->sizeimage);
++
++	switch (vb->memory) {
++	case VB2_MEMORY_DMABUF:
++		dma_buf = dma_buf_get(vb->planes[0].m.fd);
++
++		if (dma_buf != buf->mmal.dma_buf) {
++			/* dmabuf either hasn't already been mapped, or it has
++			 * changed.
++			 */
++			if (buf->mmal.dma_buf) {
++				v4l2_err(&ctx->dev->v4l2_dev,
++					 "%s Buffer changed - why did the core not call cleanup?\n",
++					 __func__);
++				bcm2835_codec_mmal_buf_cleanup(&buf->mmal);
++			}
++
++			buf->mmal.dma_buf = dma_buf;
++		} else {
++			/* We already have a reference count on the dmabuf, so
++			 * release the one we acquired above.
++			 */
++			dma_buf_put(dma_buf);
++		}
++		ret = 0;
++		break;
++	case VB2_MEMORY_MMAP:
++		/*
++		 * We want to do this at init, but vb2_core_expbuf checks that
++		 * the index < q->num_buffers, and q->num_buffers only gets
++		 * updated once all the buffers are allocated.
++		 */
++		if (!buf->mmal.dma_buf) {
++			ret = vb2_core_expbuf_dmabuf(vb->vb2_queue,
++						     vb->vb2_queue->type,
++						     vb->index, 0,
++						     O_CLOEXEC,
++						     &buf->mmal.dma_buf);
++			if (ret)
++				v4l2_err(&ctx->dev->v4l2_dev,
++					 "%s: Failed to expbuf idx %d, ret %d\n",
++					 __func__, vb->index, ret);
++		} else {
++			ret = 0;
++		}
++		break;
++	default:
++		ret = -EINVAL;
++		break;
++	}
++
++	return ret;
++}
++
++static void bcm2835_codec_buf_queue(struct vb2_buffer *vb)
++{
++	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++
++	v4l2_dbg(4, debug, &ctx->dev->v4l2_dev, "%s: type: %d ptr %p vbuf->flags %u, seq %u, bytesused %u\n",
++		 __func__, vb->vb2_queue->type, vb, vbuf->flags, vbuf->sequence,
++		 vb->planes[0].bytesused);
++	v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
++}
++
++static void bcm2835_codec_buffer_cleanup(struct vb2_buffer *vb)
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
++	struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
++	struct v4l2_m2m_buffer *m2m = container_of(vb2, struct v4l2_m2m_buffer,
++						   vb);
++	struct m2m_mmal_buffer *buf = container_of(m2m, struct m2m_mmal_buffer,
++						   m2m);
++
++	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: ctx:%p, vb %p\n",
++		 __func__, ctx, vb);
++
++	bcm2835_codec_mmal_buf_cleanup(&buf->mmal);
++}
++
++static int bcm2835_codec_start_streaming(struct vb2_queue *q,
++					 unsigned int count)
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(q);
++	struct bcm2835_codec_dev *dev = ctx->dev;
++	struct bcm2835_codec_q_data *q_data = get_q_data(ctx, q->type);
++	struct vchiq_mmal_port *port = get_port_data(ctx, q->type);
++	int ret;
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: type: %d count %d\n",
++		 __func__, q->type, count);
++	q_data->sequence = 0;
++
++	if (!ctx->component_enabled) {
++		ret = vchiq_mmal_component_enable(dev->instance,
++						  ctx->component);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed enabling component, ret %d\n",
++				 __func__, ret);
++		ctx->component_enabled = true;
++	}
++
++	if (count < port->minimum_buffer.num)
++		count = port->minimum_buffer.num;
++
++	if (port->current_buffer.num < count + 1) {
++		v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: ctx:%p, buffer count changed %u to %u\n",
++			 __func__, ctx, port->current_buffer.num, count + 1);
++
++		port->current_buffer.num = count + 1;
++		ret = vchiq_mmal_port_set_format(dev->instance, port);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Error updating buffer count, ret %d\n",
++				 __func__, ret);
++	}
++
++	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
++		/*
++		 * Create the EOS buffer.
++		 * We only need the MMAL part, and want to NOT attach a memory
++		 * buffer to it as it should only take flags.
++		 */
++		memset(&q_data->eos_buffer, 0, sizeof(q_data->eos_buffer));
++		mmal_vchi_buffer_init(dev->instance,
++				      &q_data->eos_buffer.mmal);
++		q_data->eos_buffer_in_use = false;
++
++		port->cb_ctx = ctx;
++		ret = vchiq_mmal_port_enable(dev->instance,
++					     port,
++					     ip_buffer_cb);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed enabling i/p port, ret %d\n",
++				 __func__, ret);
++	} else {
++		port->cb_ctx = ctx;
++		ret = vchiq_mmal_port_enable(dev->instance,
++					     port,
++					     op_buffer_cb);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed enabling o/p port, ret %d\n",
++				 __func__, ret);
++	}
++	return ret;
++}
++
++static void bcm2835_codec_stop_streaming(struct vb2_queue *q)
++{
++	struct bcm2835_codec_ctx *ctx = vb2_get_drv_priv(q);
++	struct bcm2835_codec_dev *dev = ctx->dev;
++	struct bcm2835_codec_q_data *q_data = get_q_data(ctx, q->type);
++	struct vchiq_mmal_port *port = get_port_data(ctx, q->type);
++	struct vb2_v4l2_buffer *vbuf;
++	int ret;
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: type: %d - return buffers\n",
++		 __func__, q->type);
++
++	init_completion(&ctx->frame_cmplt);
++
++	/* Clear out all buffers held by m2m framework */
++	for (;;) {
++		if (V4L2_TYPE_IS_OUTPUT(q->type))
++			vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
++		else
++			vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
++		if (!vbuf)
++			break;
++		v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: return buffer %p\n",
++			 __func__, vbuf);
++
++		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
++	}
++
++	/* Disable MMAL port - this will flush buffers back */
++	ret = vchiq_mmal_port_disable(dev->instance, port);
++	if (ret)
++		v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed disabling %s port, ret %d\n",
++			 __func__, V4L2_TYPE_IS_OUTPUT(q->type) ? "i/p" : "o/p",
++			 ret);
++
++	while (atomic_read(&port->buffers_with_vpu)) {
++		v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: Waiting for buffers to be returned - %d outstanding\n",
++			 __func__, atomic_read(&port->buffers_with_vpu));
++		ret = wait_for_completion_timeout(&ctx->frame_cmplt,
++						  COMPLETE_TIMEOUT);
++		if (ret <= 0) {
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Timeout waiting for buffers to be returned - %d outstanding\n",
++				 __func__,
++				 atomic_read(&port->buffers_with_vpu));
++			break;
++		}
++	}
++
++	/* If both ports disabled, then disable the component */
++	if (ctx->component_enabled &&
++	    !ctx->component->input[0].enabled &&
++	    !ctx->component->output[0].enabled) {
++		ret = vchiq_mmal_component_disable(dev->instance,
++						   ctx->component);
++		if (ret)
++			v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed enabling component, ret %d\n",
++				 __func__, ret);
++		ctx->component_enabled = false;
++	}
++
++	if (V4L2_TYPE_IS_OUTPUT(q->type))
++		mmal_vchi_buffer_cleanup(&q_data->eos_buffer.mmal);
++
++	v4l2_dbg(1, debug, &ctx->dev->v4l2_dev, "%s: done\n", __func__);
++}
++
++static const struct vb2_ops bcm2835_codec_qops = {
++	.queue_setup	 = bcm2835_codec_queue_setup,
++	.buf_init	 = bcm2835_codec_buf_init,
++	.buf_prepare	 = bcm2835_codec_buf_prepare,
++	.buf_queue	 = bcm2835_codec_buf_queue,
++	.buf_cleanup	 = bcm2835_codec_buffer_cleanup,
++	.start_streaming = bcm2835_codec_start_streaming,
++	.stop_streaming  = bcm2835_codec_stop_streaming,
++	.wait_prepare	 = vb2_ops_wait_prepare,
++	.wait_finish	 = vb2_ops_wait_finish,
++};
++
++static int queue_init(void *priv, struct vb2_queue *src_vq,
++		      struct vb2_queue *dst_vq)
++{
++	struct bcm2835_codec_ctx *ctx = priv;
++	int ret;
++
++	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
++	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
++	src_vq->drv_priv = ctx;
++	src_vq->buf_struct_size = sizeof(struct m2m_mmal_buffer);
++	src_vq->ops = &bcm2835_codec_qops;
++	src_vq->mem_ops = &vb2_dma_contig_memops;
++	src_vq->dev = &ctx->dev->pdev->dev;
++	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
++	src_vq->lock = &ctx->dev->dev_mutex;
++
++	ret = vb2_queue_init(src_vq);
++	if (ret)
++		return ret;
++
++	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
++	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
++	dst_vq->drv_priv = ctx;
++	dst_vq->buf_struct_size = sizeof(struct m2m_mmal_buffer);
++	dst_vq->ops = &bcm2835_codec_qops;
++	dst_vq->mem_ops = &vb2_dma_contig_memops;
++	dst_vq->dev = &ctx->dev->pdev->dev;
++	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
++	dst_vq->lock = &ctx->dev->dev_mutex;
++
++	return vb2_queue_init(dst_vq);
++}
++
++/*
++ * File operations
++ */
++static int bcm2835_codec_open(struct file *file)
++{
++	struct bcm2835_codec_dev *dev = video_drvdata(file);
++	struct bcm2835_codec_ctx *ctx = NULL;
++	struct v4l2_ctrl_handler *hdl;
++	int rc = 0;
++
++	if (mutex_lock_interruptible(&dev->dev_mutex)) {
++		v4l2_err(&dev->v4l2_dev, "Mutex fail\n");
++		return -ERESTARTSYS;
++	}
++	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
++	if (!ctx) {
++		rc = -ENOMEM;
++		goto open_unlock;
++	}
++
++	ctx->q_data[V4L2_M2M_SRC].fmt = get_default_format(dev, false);
++	ctx->q_data[V4L2_M2M_DST].fmt = get_default_format(dev, true);
++
++	ctx->q_data[V4L2_M2M_SRC].crop_width = DEFAULT_WIDTH;
++	ctx->q_data[V4L2_M2M_SRC].crop_height = DEFAULT_HEIGHT;
++	ctx->q_data[V4L2_M2M_SRC].height = DEFAULT_HEIGHT;
++	ctx->q_data[V4L2_M2M_SRC].bytesperline =
++			get_bytesperline(DEFAULT_WIDTH,
++					 ctx->q_data[V4L2_M2M_SRC].fmt);
++	ctx->q_data[V4L2_M2M_SRC].sizeimage =
++		get_sizeimage(ctx->q_data[V4L2_M2M_SRC].bytesperline,
++			      ctx->q_data[V4L2_M2M_SRC].crop_width,
++			      ctx->q_data[V4L2_M2M_SRC].height,
++			      ctx->q_data[V4L2_M2M_SRC].fmt);
++
++	ctx->q_data[V4L2_M2M_DST].crop_width = DEFAULT_WIDTH;
++	ctx->q_data[V4L2_M2M_DST].crop_height = DEFAULT_HEIGHT;
++	ctx->q_data[V4L2_M2M_DST].height = DEFAULT_HEIGHT;
++	ctx->q_data[V4L2_M2M_DST].bytesperline =
++			get_bytesperline(DEFAULT_WIDTH,
++					 ctx->q_data[V4L2_M2M_DST].fmt);
++	ctx->q_data[V4L2_M2M_DST].sizeimage =
++		get_sizeimage(ctx->q_data[V4L2_M2M_DST].bytesperline,
++			      ctx->q_data[V4L2_M2M_DST].crop_width,
++			      ctx->q_data[V4L2_M2M_DST].height,
++			      ctx->q_data[V4L2_M2M_DST].fmt);
++
++	ctx->colorspace = V4L2_COLORSPACE_REC709;
++	ctx->bitrate = 10 * 1000 * 1000;
++
++	ctx->framerate_num = 30;
++	ctx->framerate_denom = 1;
++
++	/* Initialise V4L2 contexts */
++	v4l2_fh_init(&ctx->fh, video_devdata(file));
++	file->private_data = &ctx->fh;
++	ctx->dev = dev;
++	hdl = &ctx->hdl;
++	if (dev->role == ENCODE) {
++		/* Encode controls */
++		v4l2_ctrl_handler_init(hdl, 7);
++
++		v4l2_ctrl_new_std_menu(hdl, &bcm2835_codec_ctrl_ops,
++				       V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
++				       V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
++				       V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MPEG_VIDEO_BITRATE,
++				  25 * 1000, 25 * 1000 * 1000,
++				  25 * 1000, 10 * 1000 * 1000);
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER,
++				  0, 1,
++				  1, 0);
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
++				  0, 0x7FFFFFFF,
++				  1, 60);
++		v4l2_ctrl_new_std_menu(hdl, &bcm2835_codec_ctrl_ops,
++				       V4L2_CID_MPEG_VIDEO_H264_LEVEL,
++				       V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
++				       ~(BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_0) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1B) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_1) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_2) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_1_3) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_0) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_1) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_2_2) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_1) |
++					 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_2)),
++				       V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
++		v4l2_ctrl_new_std_menu(hdl, &bcm2835_codec_ctrl_ops,
++				       V4L2_CID_MPEG_VIDEO_H264_PROFILE,
++				       V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
++				       ~(BIT(V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
++					 BIT(V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) |
++					 BIT(V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
++					 BIT(V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
++					V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
++				  0, 0, 0, 0);
++		if (hdl->error) {
++			rc = hdl->error;
++			goto free_ctrl_handler;
++		}
++		ctx->fh.ctrl_handler = hdl;
++		v4l2_ctrl_handler_setup(hdl);
++	} else if (dev->role == DECODE) {
++		v4l2_ctrl_handler_init(hdl, 1);
++
++		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
++				  V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
++				  1, 1, 1, 1);
++		if (hdl->error) {
++			rc = hdl->error;
++			goto free_ctrl_handler;
++		}
++		ctx->fh.ctrl_handler = hdl;
++		v4l2_ctrl_handler_setup(hdl);
++	}
++
++	ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
++
++	if (IS_ERR(ctx->fh.m2m_ctx)) {
++		rc = PTR_ERR(ctx->fh.m2m_ctx);
++
++		goto free_ctrl_handler;
++	}
++
++	/* Set both queues as buffered as we have buffering in the VPU. That
++	 * means that we will be scheduled whenever either an input or output
++	 * buffer is available (otherwise one of each are required).
++	 */
++	v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true);
++	v4l2_m2m_set_dst_buffered(ctx->fh.m2m_ctx, true);
++
++	v4l2_fh_add(&ctx->fh);
++	atomic_inc(&dev->num_inst);
++
++	mutex_unlock(&dev->dev_mutex);
++	return 0;
++
++free_ctrl_handler:
++	v4l2_ctrl_handler_free(hdl);
++	kfree(ctx);
++open_unlock:
++	mutex_unlock(&dev->dev_mutex);
++	return rc;
++}
++
++static int bcm2835_codec_release(struct file *file)
++{
++	struct bcm2835_codec_dev *dev = video_drvdata(file);
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: Releasing instance %p\n",
++		 __func__, ctx);
++
++	v4l2_fh_del(&ctx->fh);
++	v4l2_fh_exit(&ctx->fh);
++	v4l2_ctrl_handler_free(&ctx->hdl);
++	mutex_lock(&dev->dev_mutex);
++	v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
++
++	if (ctx->component)
++		vchiq_mmal_component_finalise(dev->instance, ctx->component);
++
++	mutex_unlock(&dev->dev_mutex);
++	kfree(ctx);
++
++	atomic_dec(&dev->num_inst);
++
++	return 0;
++}
++
++static const struct v4l2_file_operations bcm2835_codec_fops = {
++	.owner		= THIS_MODULE,
++	.open		= bcm2835_codec_open,
++	.release	= bcm2835_codec_release,
++	.poll		= v4l2_m2m_fop_poll,
++	.unlocked_ioctl	= video_ioctl2,
++	.mmap		= v4l2_m2m_fop_mmap,
++};
++
++static const struct video_device bcm2835_codec_videodev = {
++	.name		= MEM2MEM_NAME,
++	.vfl_dir	= VFL_DIR_M2M,
++	.fops		= &bcm2835_codec_fops,
++	.ioctl_ops	= &bcm2835_codec_ioctl_ops,
++	.minor		= -1,
++	.release	= video_device_release_empty,
++};
++
++static const struct v4l2_m2m_ops m2m_ops = {
++	.device_run	= device_run,
++	.job_ready	= job_ready,
++	.job_abort	= job_abort,
++};
++
++/* Size of the array to provide to the VPU when asking for the list of supported
++ * formats.
++ * The ISP component currently advertises 44 input formats, so add a small
++ * overhead on that.
++ */
++#define MAX_SUPPORTED_ENCODINGS 50
++
++/* Populate dev->supported_fmts with the formats supported by those ports. */
++static int bcm2835_codec_get_supported_fmts(struct bcm2835_codec_dev *dev)
++{
++	struct bcm2835_codec_fmt *list;
++	struct vchiq_mmal_component *component;
++	u32 fourccs[MAX_SUPPORTED_ENCODINGS];
++	u32 param_size = sizeof(fourccs);
++	unsigned int i, j, num_encodings;
++	int ret;
++
++	ret = vchiq_mmal_component_init(dev->instance, components[dev->role],
++					&component);
++	if (ret < 0) {
++		v4l2_err(&dev->v4l2_dev, "%s: failed to create component %s\n",
++			 __func__, components[dev->role]);
++		return -ENOMEM;
++	}
++
++	ret = vchiq_mmal_port_parameter_get(dev->instance,
++					    &component->input[0],
++					    MMAL_PARAMETER_SUPPORTED_ENCODINGS,
++					    &fourccs,
++					    &param_size);
++
++	if (ret) {
++		if (ret == MMAL_MSG_STATUS_ENOSPC) {
++			v4l2_err(&dev->v4l2_dev, "%s: port has more encoding than we provided space for. Some are dropped.\n",
++				 __func__);
++			num_encodings = MAX_SUPPORTED_ENCODINGS;
++		} else {
++			v4l2_err(&dev->v4l2_dev, "%s: get_param ret %u.\n",
++				 __func__, ret);
++			ret = -EINVAL;
++			goto destroy_component;
++		}
++	} else {
++		num_encodings = param_size / sizeof(u32);
++	}
++
++	/* Assume at this stage that all encodings will be supported in V4L2.
++	 * Any that aren't supported will waste a very small amount of memory.
++	 */
++	list = devm_kzalloc(&dev->pdev->dev,
++			    sizeof(struct bcm2835_codec_fmt) * num_encodings,
++			    GFP_KERNEL);
++	if (!list) {
++		ret = -ENOMEM;
++		goto destroy_component;
++	}
++	dev->supported_fmts[0].list = list;
++
++	for (i = 0, j = 0; i < num_encodings; i++) {
++		const struct bcm2835_codec_fmt *fmt = get_fmt(fourccs[i]);
++
++		if (fmt) {
++			list[j] = *fmt;
++			j++;
++		}
++	}
++	dev->supported_fmts[0].num_entries = j;
++
++	param_size = sizeof(fourccs);
++	ret = vchiq_mmal_port_parameter_get(dev->instance,
++					    &component->output[0],
++					    MMAL_PARAMETER_SUPPORTED_ENCODINGS,
++					    &fourccs,
++					    &param_size);
++
++	if (ret) {
++		if (ret == MMAL_MSG_STATUS_ENOSPC) {
++			v4l2_err(&dev->v4l2_dev, "%s: port has more encoding than we provided space for. Some are dropped.\n",
++				 __func__);
++			num_encodings = MAX_SUPPORTED_ENCODINGS;
++		} else {
++			ret = -EINVAL;
++			goto destroy_component;
++		}
++	} else {
++		num_encodings = param_size / sizeof(u32);
++	}
++	/* Assume at this stage that all encodings will be supported in V4L2. */
++	list = devm_kzalloc(&dev->pdev->dev,
++			    sizeof(struct bcm2835_codec_fmt) * num_encodings,
++			    GFP_KERNEL);
++	if (!list) {
++		ret = -ENOMEM;
++		goto destroy_component;
++	}
++	dev->supported_fmts[1].list = list;
++
++	for (i = 0, j = 0; i < num_encodings; i++) {
++		const struct bcm2835_codec_fmt *fmt = get_fmt(fourccs[i]);
++
++		if (fmt) {
++			list[j] = *fmt;
++			j++;
++		}
++	}
++	dev->supported_fmts[1].num_entries = j;
++
++	ret = 0;
++
++destroy_component:
++	vchiq_mmal_component_finalise(dev->instance, component);
++
++	return ret;
++}
++
++static int bcm2835_codec_create(struct bcm2835_codec_driver *drv,
++				struct bcm2835_codec_dev **new_dev,
++				enum bcm2835_codec_role role)
++{
++	struct platform_device *pdev = drv->pdev;
++	struct bcm2835_codec_dev *dev;
++	struct video_device *vfd;
++	int function;
++	int video_nr;
++	int ret;
++
++	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
++	if (!dev)
++		return -ENOMEM;
++
++	dev->pdev = pdev;
++
++	dev->role = role;
++
++	ret = vchiq_mmal_init(&dev->instance);
++	if (ret)
++		return ret;
++
++	ret = bcm2835_codec_get_supported_fmts(dev);
++	if (ret)
++		goto vchiq_finalise;
++
++	atomic_set(&dev->num_inst, 0);
++	mutex_init(&dev->dev_mutex);
++
++	/* Initialise the video device */
++	dev->vfd = bcm2835_codec_videodev;
++
++	vfd = &dev->vfd;
++	vfd->lock = &dev->dev_mutex;
++	vfd->v4l2_dev = &dev->v4l2_dev;
++	vfd->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
++	vfd->v4l2_dev->mdev = &drv->mdev;
++
++	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
++	if (ret)
++		goto vchiq_finalise;
++
++	switch (role) {
++	case DECODE:
++		v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_S_PARM);
++		v4l2_disable_ioctl(vfd, VIDIOC_G_PARM);
++		function = MEDIA_ENT_F_PROC_VIDEO_DECODER;
++		video_nr = decode_video_nr;
++		break;
++	case ENCODE:
++		v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD);
++		function = MEDIA_ENT_F_PROC_VIDEO_ENCODER;
++		video_nr = encode_video_nr;
++		break;
++	case ISP:
++		v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD);
++		v4l2_disable_ioctl(vfd, VIDIOC_S_PARM);
++		v4l2_disable_ioctl(vfd, VIDIOC_G_PARM);
++		function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
++		video_nr = isp_video_nr;
++		break;
++	default:
++		ret = -EINVAL;
++		goto unreg_dev;
++	}
++
++	ret = video_register_device(vfd, VFL_TYPE_VIDEO, video_nr);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
++		goto unreg_dev;
++	}
++
++	video_set_drvdata(vfd, dev);
++	snprintf(vfd->name, sizeof(vfd->name), "%s-%s",
++		 bcm2835_codec_videodev.name, roles[role]);
++	v4l2_info(&dev->v4l2_dev, "Device registered as /dev/video%d\n",
++		  vfd->num);
++
++	*new_dev = dev;
++
++	dev->m2m_dev = v4l2_m2m_init(&m2m_ops);
++	if (IS_ERR(dev->m2m_dev)) {
++		v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
++		ret = PTR_ERR(dev->m2m_dev);
++		goto err_m2m;
++	}
++
++	ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd, function);
++	if (ret)
++		goto err_m2m;
++
++	v4l2_info(&dev->v4l2_dev, "Loaded V4L2 %s\n",
++		  roles[role]);
++	return 0;
++
++err_m2m:
++	v4l2_m2m_release(dev->m2m_dev);
++	video_unregister_device(&dev->vfd);
++unreg_dev:
++	v4l2_device_unregister(&dev->v4l2_dev);
++vchiq_finalise:
++	vchiq_mmal_finalise(dev->instance);
++	return ret;
++}
++
++static int bcm2835_codec_destroy(struct bcm2835_codec_dev *dev)
++{
++	if (!dev)
++		return -ENODEV;
++
++	v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME ", %s\n",
++		  roles[dev->role]);
++	v4l2_m2m_unregister_media_controller(dev->m2m_dev);
++	v4l2_m2m_release(dev->m2m_dev);
++	video_unregister_device(&dev->vfd);
++	v4l2_device_unregister(&dev->v4l2_dev);
++	vchiq_mmal_finalise(dev->instance);
++
++	return 0;
++}
++
++static int bcm2835_codec_probe(struct platform_device *pdev)
++{
++	struct bcm2835_codec_driver *drv;
++	struct media_device *mdev;
++	int ret = 0;
++
++	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
++	if (!drv)
++		return -ENOMEM;
++
++	drv->pdev = pdev;
++	mdev = &drv->mdev;
++	mdev->dev = &pdev->dev;
++
++	strscpy(mdev->model, bcm2835_codec_videodev.name, sizeof(mdev->model));
++	strscpy(mdev->serial, "0000", sizeof(mdev->serial));
++	snprintf(mdev->bus_info, sizeof(mdev->bus_info), "platform:%s",
++		 pdev->name);
++
++	/* This should return the vgencmd version information or such .. */
++	mdev->hw_revision = 1;
++	media_device_init(mdev);
++
++	ret = bcm2835_codec_create(drv, &drv->decode, DECODE);
++	if (ret)
++		goto out;
++
++	ret = bcm2835_codec_create(drv, &drv->encode, ENCODE);
++	if (ret)
++		goto out;
++
++	ret = bcm2835_codec_create(drv, &drv->isp, ISP);
++	if (ret)
++		goto out;
++
++	/* Register the media device node */
++	if (media_device_register(mdev) < 0)
++		goto out;
++
++	platform_set_drvdata(pdev, drv);
++
++	return 0;
++
++out:
++	if (drv->isp) {
++		bcm2835_codec_destroy(drv->isp);
++		drv->isp = NULL;
++	}
++	if (drv->encode) {
++		bcm2835_codec_destroy(drv->encode);
++		drv->encode = NULL;
++	}
++	if (drv->decode) {
++		bcm2835_codec_destroy(drv->decode);
++		drv->decode = NULL;
++	}
++	return ret;
++}
++
++static int bcm2835_codec_remove(struct platform_device *pdev)
++{
++	struct bcm2835_codec_driver *drv = platform_get_drvdata(pdev);
++
++	media_device_unregister(&drv->mdev);
++
++	bcm2835_codec_destroy(drv->isp);
++
++	bcm2835_codec_destroy(drv->encode);
++
++	bcm2835_codec_destroy(drv->decode);
++
++	media_device_cleanup(&drv->mdev);
++
++	return 0;
++}
++
++static struct platform_driver bcm2835_v4l2_codec_driver = {
++	.probe = bcm2835_codec_probe,
++	.remove = bcm2835_codec_remove,
++	.driver = {
++		   .name = "bcm2835-codec",
++		   .owner = THIS_MODULE,
++		   },
++};
++
++module_platform_driver(bcm2835_v4l2_codec_driver);
++
++MODULE_DESCRIPTION("BCM2835 codec V4L2 driver");
++MODULE_AUTHOR("Dave Stevenson, <dave.stevenson@raspberrypi.com>");
++MODULE_LICENSE("GPL");
++MODULE_VERSION("0.0.1");
++MODULE_ALIAS("platform:bcm2835-codec");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0343-bcm2835-dma-only-reserve-channel-0-if-legacy-dma-dri.patch b/target/linux/bcm27xx/patches-5.10/950-0343-bcm2835-dma-only-reserve-channel-0-if-legacy-dma-dri.patch
new file mode 100644
index 0000000000..bf7ae54c08
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0343-bcm2835-dma-only-reserve-channel-0-if-legacy-dma-dri.patch
@@ -0,0 +1,32 @@
+From 137865877ea138ef9c593ce74cbd4ddc2560e057 Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Sun, 11 Oct 2020 00:48:55 +0200
+Subject: [PATCH] bcm2835-dma: only reserve channel 0 if legacy dma
+ driver is enabled
+
+If CONFIG_DMA_BCM2708 isn't enabled there's no need to mask out
+one of the already scarce DMA channels.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ drivers/dma/bcm2835-dma.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -1283,6 +1283,7 @@ static int bcm2835_dma_probe(struct plat
+ 		goto err_no_dma;
+ 	}
+ 
++#ifdef CONFIG_DMA_BCM2708
+ 	/* One channel is reserved for the legacy API */
+ 	if (chans_available & BCM2835_DMA_BULK_MASK) {
+ 		rc = bcm_dmaman_probe(pdev, base,
+@@ -1293,6 +1294,7 @@ static int bcm2835_dma_probe(struct plat
+ 
+ 		chans_available &= ~BCM2835_DMA_BULK_MASK;
+ 	}
++#endif
+ 
+ 	/* And possibly one for the 40-bit DMA memcpy API */
+ 	if (chans_available & od->cfg_data->chan_40bit_mask &
diff --git a/target/linux/bcm27xx/patches-5.10/950-0344-uapi-bcm2835-isp-Add-bcm2835-isp-uapi-header-file.patch b/target/linux/bcm27xx/patches-5.10/950-0344-uapi-bcm2835-isp-Add-bcm2835-isp-uapi-header-file.patch
new file mode 100644
index 0000000000..60b82fed2b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0344-uapi-bcm2835-isp-Add-bcm2835-isp-uapi-header-file.patch
@@ -0,0 +1,338 @@
+From 29ac7eb75ee5ff8aeed1017f741b9f0bf2c94a89 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 12 Oct 2020 17:03:14 +0100
+Subject: [PATCH] uapi: bcm2835-isp: Add bcm2835-isp uapi header file
+
+This file defines the userland interface to the bcm2835-isp driver
+that will follow in a separate commit.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ include/uapi/linux/bcm2835-isp.h | 320 +++++++++++++++++++++++++++++++
+ 1 file changed, 320 insertions(+)
+ create mode 100644 include/uapi/linux/bcm2835-isp.h
+
+--- /dev/null
++++ b/include/uapi/linux/bcm2835-isp.h
+@@ -0,0 +1,320 @@
++/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
++/*
++ * bcm2835-isp.h
++ *
++ * BCM2835 ISP driver - user space header file.
++ *
++ * Copyright © 2019-2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Author: Naushir Patuck (naush@raspberrypi.com)
++ *
++ */
++
++#ifndef __BCM2835_ISP_H_
++#define __BCM2835_ISP_H_
++
++#include <linux/v4l2-controls.h>
++
++#define V4L2_CID_USER_BCM2835_ISP_CC_MATRIX	\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0001)
++#define V4L2_CID_USER_BCM2835_ISP_LENS_SHADING	\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0002)
++#define V4L2_CID_USER_BCM2835_ISP_BLACK_LEVEL	\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0003)
++#define V4L2_CID_USER_BCM2835_ISP_GEQ		\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0004)
++#define V4L2_CID_USER_BCM2835_ISP_GAMMA		\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0005)
++#define V4L2_CID_USER_BCM2835_ISP_DENOISE	\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0006)
++#define V4L2_CID_USER_BCM2835_ISP_SHARPEN	\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0007)
++#define V4L2_CID_USER_BCM2835_ISP_DPC		\
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0008)
++
++/*
++ * All structs below are directly mapped onto the equivalent structs in
++ * drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++ * for convenience.
++ */
++
++/**
++ * struct bcm2835_isp_rational - Rational value type.
++ *
++ * @num:	Numerator.
++ * @den:	Denominator.
++ */
++struct bcm2835_isp_rational {
++	__s32 num;
++	__u32 den;
++};
++
++/**
++ * struct bcm2835_isp_ccm - Colour correction matrix.
++ *
++ * @ccm:	3x3 correction matrix coefficients.
++ * @offsets:	1x3 correction offsets.
++ */
++struct bcm2835_isp_ccm {
++	struct bcm2835_isp_rational ccm[3][3];
++	__s32 offsets[3];
++};
++
++/**
++ * struct bcm2835_isp_custom_ccm - Custom CCM applied with the
++ *				   V4L2_CID_USER_BCM2835_ISP_CC_MATRIX ctrl.
++ *
++ * @enabled:	Enable custom CCM.
++ * @ccm:	Custom CCM coefficients and offsets.
++ */
++struct bcm2835_isp_custom_ccm {
++	__u32 enabled;
++	struct bcm2835_isp_ccm ccm;
++};
++
++/**
++ * enum bcm2835_isp_gain_format - format of the gains in the lens shading
++ *				  tables used with the
++ *				  V4L2_CID_USER_BCM2835_ISP_LENS_SHADING ctrl.
++ *
++ * @GAIN_FORMAT_U0P8_1:		Gains are u0.8 format, starting at 1.0
++ * @GAIN_FORMAT_U1P7_0:		Gains are u1.7 format, starting at 0.0
++ * @GAIN_FORMAT_U1P7_1:		Gains are u1.7 format, starting at 1.0
++ * @GAIN_FORMAT_U2P6_0:		Gains are u2.6 format, starting at 0.0
++ * @GAIN_FORMAT_U2P6_1:		Gains are u2.6 format, starting at 1.0
++ * @GAIN_FORMAT_U3P5_0:		Gains are u3.5 format, starting at 0.0
++ * @GAIN_FORMAT_U3P5_1:		Gains are u3.5 format, starting at 1.0
++ * @GAIN_FORMAT_U4P10:		Gains are u4.10 format, starting at 0.0
++ */
++enum bcm2835_isp_gain_format {
++	GAIN_FORMAT_U0P8_1 = 0,
++	GAIN_FORMAT_U1P7_0 = 1,
++	GAIN_FORMAT_U1P7_1 = 2,
++	GAIN_FORMAT_U2P6_0 = 3,
++	GAIN_FORMAT_U2P6_1 = 4,
++	GAIN_FORMAT_U3P5_0 = 5,
++	GAIN_FORMAT_U3P5_1 = 6,
++	GAIN_FORMAT_U4P10  = 7,
++};
++
++/**
++ * struct bcm2835_isp_lens_shading - Lens shading tables supplied with the
++ *				     V4L2_CID_USER_BCM2835_ISP_LENS_SHADING
++ *				     ctrl.
++ *
++ * @enabled:		Enable lens shading.
++ * @grid_cell_size:	Size of grid cells in samples (16, 32, 64, 128 or 256).
++ * @grid_width:		Width of lens shading tables in grid cells.
++ * @grid_stride:	Row to row distance (in grid cells) between grid cells
++ *			in the same horizontal location.
++ * @grid_height:	Height of lens shading tables in grid cells.
++ * @dmabuf:		dmabuf file handle containing the table.
++ * @ref_transform:	Reference transform - unsupported, please pass zero.
++ * @corner_sampled:	Whether the gains are sampled at the corner points
++ *			of the grid cells or in the cell centres.
++ * @gain_format:	Format of the gains (see enum &bcm2835_isp_gain_format).
++ */
++struct bcm2835_isp_lens_shading {
++	__u32 enabled;
++	__u32 grid_cell_size;
++	__u32 grid_width;
++	__u32 grid_stride;
++	__u32 grid_height;
++	__s32 dmabuf;
++	__u32 ref_transform;
++	__u32 corner_sampled;
++	__u32 gain_format;
++};
++
++/**
++ * struct bcm2835_isp_black_level - Sensor black level set with the
++ *				    V4L2_CID_USER_BCM2835_ISP_BLACK_LEVEL ctrl.
++ *
++ * @enabled:		Enable black level.
++ * @black_level_r:	Black level for red channel.
++ * @black_level_g:	Black level for green channels.
++ * @black_level_b:	Black level for blue channel.
++ */
++struct bcm2835_isp_black_level {
++	__u32 enabled;
++	__u16 black_level_r;
++	__u16 black_level_g;
++	__u16 black_level_b;
++	__u8 padding[2]; /* Unused */
++};
++
++/**
++ * struct bcm2835_isp_geq - Green equalisation parameters set with the
++ *			    V4L2_CID_USER_BCM2835_ISP_GEQ ctrl.
++ *
++ * @enabled:	Enable green equalisation.
++ * @offset:	Fixed offset of the green equalisation threshold.
++ * @slope:	Slope of the green equalisation threshold.
++ */
++struct bcm2835_isp_geq {
++	__u32 enabled;
++	__u32 offset;
++	struct bcm2835_isp_rational slope;
++};
++
++#define BCM2835_NUM_GAMMA_PTS 33
++
++/**
++ * struct bcm2835_isp_gamma - Gamma parameters set with the
++ *			      V4L2_CID_USER_BCM2835_ISP_GAMMA ctrl.
++ *
++ * @enabled:	Enable gamma adjustment.
++ * @X:		X values of the points defining the gamma curve.
++ *		Values should be scaled to 16 bits.
++ * @Y:		Y values of the points defining the gamma curve.
++ *		Values should be scaled to 16 bits.
++ */
++struct bcm2835_isp_gamma {
++	__u32 enabled;
++	__u16 x[BCM2835_NUM_GAMMA_PTS];
++	__u16 y[BCM2835_NUM_GAMMA_PTS];
++};
++
++/**
++ * struct bcm2835_isp_denoise - Denoise parameters set with the
++ *				V4L2_CID_USER_BCM2835_ISP_DENOISE ctrl.
++ *
++ * @enabled:	Enable denoise.
++ * @constant:	Fixed offset of the noise threshold.
++ * @slope:	Slope of the noise threshold.
++ * @strength:	Denoise strength between 0.0 (off) and 1.0 (maximum).
++ */
++struct bcm2835_isp_denoise {
++	__u32 enabled;
++	__u32 constant;
++	struct bcm2835_isp_rational slope;
++	struct bcm2835_isp_rational strength;
++};
++
++/**
++ * struct bcm2835_isp_sharpen - Sharpen parameters set with the
++ *				V4L2_CID_USER_BCM2835_ISP_SHARPEN ctrl.
++ *
++ * @enabled:	Enable sharpening.
++ * @threshold:	Threshold at which to start sharpening pixels.
++ * @strength:	Strength with which pixel sharpening increases.
++ * @limit:	Limit to the amount of sharpening applied.
++ */
++struct bcm2835_isp_sharpen {
++	__u32 enabled;
++	struct bcm2835_isp_rational threshold;
++	struct bcm2835_isp_rational strength;
++	struct bcm2835_isp_rational limit;
++};
++
++/**
++ * enum bcm2835_isp_dpc_mode - defective pixel correction (DPC) strength.
++ *
++ * @DPC_MODE_OFF:		No DPC.
++ * @DPC_MODE_NORMAL:		Normal DPC.
++ * @DPC_MODE_STRONG:		Strong DPC.
++ */
++enum bcm2835_isp_dpc_mode {
++	DPC_MODE_OFF = 0,
++	DPC_MODE_NORMAL = 1,
++	DPC_MODE_STRONG = 2,
++};
++
++/**
++ * struct bcm2835_isp_dpc - Defective pixel correction (DPC) parameters set
++ *			    with the V4L2_CID_USER_BCM2835_ISP_DPC ctrl.
++ *
++ * @enabled:	Enable DPC.
++ * @strength:	DPC strength (see enum &bcm2835_isp_dpc_mode).
++ */
++struct bcm2835_isp_dpc {
++	__u32 enabled;
++	__u32 strength;
++};
++
++/*
++ * ISP statistics structures.
++ *
++ * The bcm2835_isp_stats structure is generated at the output of the
++ * statistics node.  Note that this does not directly map onto the statistics
++ * output of the ISP HW.  Instead, the MMAL firmware code maps the HW statistics
++ * to the bcm2835_isp_stats structure.
++ */
++#define DEFAULT_AWB_REGIONS_X 16
++#define DEFAULT_AWB_REGIONS_Y 12
++
++#define NUM_HISTOGRAMS 2
++#define NUM_HISTOGRAM_BINS 128
++#define AWB_REGIONS (DEFAULT_AWB_REGIONS_X * DEFAULT_AWB_REGIONS_Y)
++#define FLOATING_REGIONS 16
++#define AGC_REGIONS 16
++#define FOCUS_REGIONS 12
++
++/**
++ * struct bcm2835_isp_stats_hist - Histogram statistics
++ *
++ * @r_hist:	Red channel histogram.
++ * @g_hist:	Combined green channel histogram.
++ * @b_hist:	Blue channel histogram.
++ */
++struct bcm2835_isp_stats_hist {
++	__u32 r_hist[NUM_HISTOGRAM_BINS];
++	__u32 g_hist[NUM_HISTOGRAM_BINS];
++	__u32 b_hist[NUM_HISTOGRAM_BINS];
++};
++
++/**
++ * struct bcm2835_isp_stats_region - Region sums.
++ *
++ * @counted:	The number of 2x2 bayer tiles accumulated.
++ * @notcounted:	The number of 2x2 bayer tiles not accumulated.
++ * @r_sum:	Total sum of counted pixels in the red channel for a region.
++ * @g_sum:	Total sum of counted pixels in the green channel for a region.
++ * @b_sum:	Total sum of counted pixels in the blue channel for a region.
++ */
++struct bcm2835_isp_stats_region {
++	__u32 counted;
++	__u32 notcounted;
++	__u64 r_sum;
++	__u64 g_sum;
++	__u64 b_sum;
++};
++
++/**
++ * struct bcm2835_isp_stats_focus - Focus statistics.
++ *
++ * @contrast_val:	Focus measure - accumulated output of the focus filter.
++ *			In the first dimension, index [0] counts pixels below a
++ *			preset threshold, and index [1] counts pixels above the
++ *			threshold.  In the second dimension, index [0] uses the
++ *			first predefined filter, and index [1] uses the second
++ *			predefined filter.
++ * @contrast_val_num:	The number of counted pixels in the above accumulation.
++ */
++struct bcm2835_isp_stats_focus {
++	__u64 contrast_val[2][2];
++	__u32 contrast_val_num[2][2];
++};
++
++/**
++ * struct bcm2835_isp_stats - ISP statistics.
++ *
++ * @version:		Version of the bcm2835_isp_stats structure.
++ * @size:		Size of the bcm2835_isp_stats structure.
++ * @hist:		Histogram statistics for the entire image.
++ * @awb_stats:		Statistics for the regions defined for AWB calculations.
++ * @floating_stats:	Statistics for arbitrarily placed (floating) regions.
++ * @agc_stats:		Statistics for the regions defined for AGC calculations.
++ * @focus_stats:	Focus filter statistics for the focus regions.
++ */
++struct bcm2835_isp_stats {
++	__u32 version;
++	__u32 size;
++	struct bcm2835_isp_stats_hist hist[NUM_HISTOGRAMS];
++	struct bcm2835_isp_stats_region awb_stats[AWB_REGIONS];
++	struct bcm2835_isp_stats_region floating_stats[FLOATING_REGIONS];
++	struct bcm2835_isp_stats_region agc_stats[AGC_REGIONS];
++	struct bcm2835_isp_stats_focus focus_stats[FOCUS_REGIONS];
++};
++
++#endif /* __BCM2835_ISP_H_ */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0345-staging-vc04_services-ISP-Add-a-more-complex-ISP-pro.patch b/target/linux/bcm27xx/patches-5.10/950-0345-staging-vc04_services-ISP-Add-a-more-complex-ISP-pro.patch
new file mode 100644
index 0000000000..80a94c4999
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0345-staging-vc04_services-ISP-Add-a-more-complex-ISP-pro.patch
@@ -0,0 +1,2406 @@
+From 852ada216764e02c211a9029de885d11868e0bbc Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 23 Apr 2020 10:17:37 +0100
+Subject: [PATCH] staging: vc04_services: ISP: Add a more complex ISP
+ processing component
+
+Driver for the BCM2835 ISP hardware block.  This driver uses the MMAL
+component to program the ISP hardware through the VC firmware.
+
+The ISP component can produce two video stream outputs, and Bayer
+image statistics. This can't be encompassed in a simple V4L2
+M2M device, so create a new device that registers 4 video nodes.
+
+This patch squashes all the development patches from the earlier
+rpi-5.4.y branch into one
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ MAINTAINERS                                   |    9 +
+ drivers/staging/vc04_services/Kconfig         |    1 +
+ drivers/staging/vc04_services/Makefile        |    1 +
+ .../staging/vc04_services/bcm2835-isp/Kconfig |   14 +
+ .../vc04_services/bcm2835-isp/Makefile        |    8 +
+ .../bcm2835-isp/bcm2835-isp-ctrls.h           |   67 +
+ .../bcm2835-isp/bcm2835-isp-fmts.h            |  353 ++++
+ .../bcm2835-isp/bcm2835-v4l2-isp.c            | 1694 +++++++++++++++++
+ .../vc04_services/vchiq-mmal/mmal-encodings.h |    4 +
+ .../vchiq-mmal/mmal-parameters.h              |  153 +-
+ 10 files changed, 2303 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/staging/vc04_services/bcm2835-isp/Kconfig
+ create mode 100644 drivers/staging/vc04_services/bcm2835-isp/Makefile
+ create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h
+ create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+ create mode 100644 drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -3431,6 +3431,15 @@ S:	Maintained
+ F:	drivers/media/platform/bcm2835/
+ F:	Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml
+ 
++BROADCOM BCM2835 ISP DRIVER
++M:	Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
++L:	linux-media@vger.kernel.org
++S:	Maintained
++F:	Documentation/media/uapi/v4l/pixfmt-meta-bcm2835-isp-stats.rst
++F:	Documentation/media/v4l-drivers/bcm2835-isp.rst
++F:	drivers/staging/vc04_services/bcm2835-isp
++F:	include/uapi/linux/bcm2835-isp.h
++
+ BROADCOM BCM47XX MIPS ARCHITECTURE
+ M:	Hauke Mehrtens <hauke@hauke-m.de>
+ M:	Rafał Miłecki <zajec5@gmail.com>
+--- a/drivers/staging/vc04_services/Kconfig
++++ b/drivers/staging/vc04_services/Kconfig
+@@ -25,6 +25,7 @@ source "drivers/staging/vc04_services/bc
+ 
+ source "drivers/staging/vc04_services/vc-sm-cma/Kconfig"
+ source "drivers/staging/vc04_services/bcm2835-codec/Kconfig"
++source "drivers/staging/vc04_services/bcm2835-isp/Kconfig"
+ 
+ source "drivers/staging/vc04_services/vchiq-mmal/Kconfig"
+ 
+--- a/drivers/staging/vc04_services/Makefile
++++ b/drivers/staging/vc04_services/Makefile
+@@ -13,6 +13,7 @@ obj-$(CONFIG_VIDEO_BCM2835)		+= bcm2835-
+ obj-$(CONFIG_BCM2835_VCHIQ_MMAL)	+= vchiq-mmal/
+ obj-$(CONFIG_BCM_VC_SM_CMA)		+= vc-sm-cma/
+ obj-$(CONFIG_VIDEO_CODEC_BCM2835)	+= bcm2835-codec/
++obj-$(CONFIG_VIDEO_ISP_BCM2835)		+= bcm2835-isp/
+ 
+ ccflags-y += -I $(srctree)/$(src)/include  -D__VCCOREVER__=0x04000000
+ 
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-isp/Kconfig
+@@ -0,0 +1,14 @@
++config VIDEO_ISP_BCM2835
++	tristate "BCM2835 ISP support"
++	depends on MEDIA_SUPPORT
++	depends on VIDEO_V4L2 && (ARCH_BCM2835 || COMPILE_TEST)
++	depends on MEDIA_CONTROLLER
++	select BCM2835_VCHIQ_MMAL
++	select VIDEOBUF2_DMA_CONTIG
++	help
++	  This is the V4L2 driver for the Broadcom BCM2835 ISP hardware.
++	  This operates over the VCHIQ interface to a service running on
++	  VideoCore.
++
++	  To compile this driver as a module, choose M here: the module
++	  will be called bcm2835-isp.
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-isp/Makefile
+@@ -0,0 +1,8 @@
++# SPDX-License-Identifier: GPL-2.0
++bcm2835-isp-objs := bcm2835-v4l2-isp.o
++
++obj-$(CONFIG_VIDEO_ISP_BCM2835) += bcm2835-isp.o
++
++ccflags-y += \
++	-I$(srctree)/drivers/staging/vc04_services \
++	-D__VCCOREVER__=0x04000000
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h
+@@ -0,0 +1,67 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Broadcom BCM2835 ISP driver
++ *
++ * Copyright © 2019-2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Author: Naushir Patuck (naush@raspberrypi.com)
++ *
++ */
++
++#ifndef BCM2835_ISP_CTRLS
++#define BCM2835_ISP_CTRLS
++
++#include <linux/bcm2835-isp.h>
++
++struct bcm2835_isp_custom_ctrl {
++	const char *name;
++	u32 id;
++	u32 size;
++	u32 flags;
++};
++
++static const struct bcm2835_isp_custom_ctrl custom_ctrls[] = {
++	{
++		.name	= "Colour Correction Matrix",
++		.id	= V4L2_CID_USER_BCM2835_ISP_CC_MATRIX,
++		.size	= sizeof(struct bcm2835_isp_custom_ccm),
++		.flags  = 0
++	}, {
++		.name	= "Lens Shading",
++		.id	= V4L2_CID_USER_BCM2835_ISP_LENS_SHADING,
++		.size	= sizeof(struct bcm2835_isp_lens_shading),
++		.flags  = V4L2_CTRL_FLAG_EXECUTE_ON_WRITE
++	}, {
++		.name	= "Black Level",
++		.id	= V4L2_CID_USER_BCM2835_ISP_BLACK_LEVEL,
++		.size	= sizeof(struct bcm2835_isp_black_level),
++		.flags  = 0
++	}, {
++		.name	= "Green Equalisation",
++		.id	= V4L2_CID_USER_BCM2835_ISP_GEQ,
++		.size	= sizeof(struct bcm2835_isp_geq),
++		.flags  = 0
++	}, {
++		.name	= "Gamma",
++		.id	= V4L2_CID_USER_BCM2835_ISP_GAMMA,
++		.size	= sizeof(struct bcm2835_isp_gamma),
++		.flags  = 0
++	}, {
++		.name	= "Sharpen",
++		.id	= V4L2_CID_USER_BCM2835_ISP_SHARPEN,
++		.size	= sizeof(struct bcm2835_isp_sharpen),
++		.flags  = 0
++	}, {
++		.name	= "Denoise",
++		.id	= V4L2_CID_USER_BCM2835_ISP_DENOISE,
++		.size	= sizeof(struct bcm2835_isp_denoise),
++		.flags  = 0
++	}, {
++		.name	= "Defective Pixel Correction",
++		.id	= V4L2_CID_USER_BCM2835_ISP_DPC,
++		.size	= sizeof(struct bcm2835_isp_dpc),
++		.flags  = 0
++	}
++};
++
++#endif
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+@@ -0,0 +1,353 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++/*
++ * Broadcom BCM2835 ISP driver
++ *
++ * Copyright © 2019-2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Author: Naushir Patuck (naush@raspberrypi.com)
++ *
++ */
++
++#ifndef BCM2835_ISP_FMTS
++#define BCM2835_ISP_FMTS
++
++#include <linux/videodev2.h>
++#include "vchiq-mmal/mmal-encodings.h"
++
++struct bcm2835_isp_fmt {
++	u32 fourcc;
++	int depth;
++	int bytesperline_align;
++	u32 mmal_fmt;
++	int size_multiplier_x2;
++	enum v4l2_colorspace colorspace;
++	unsigned int step_size;
++};
++
++static const struct bcm2835_isp_fmt supported_formats[] = {
++	{
++		/* YUV formats */
++		.fourcc		    = V4L2_PIX_FMT_YUV420,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_I420,
++		.size_multiplier_x2 = 3,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_YVU420,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_YV12,
++		.size_multiplier_x2 = 3,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_NV12,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_NV12,
++		.size_multiplier_x2 = 3,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_NV21,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_NV21,
++		.size_multiplier_x2 = 3,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_YUYV,
++		.depth		    = 16,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_YUYV,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_UYVY,
++		.depth		    = 16,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_UYVY,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_YVYU,
++		.depth		    = 16,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_YVYU,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_VYUY,
++		.depth		    = 16,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_VYUY,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.step_size	    = 2,
++	}, {
++		/* RGB formats */
++		.fourcc		    = V4L2_PIX_FMT_RGB24,
++		.depth		    = 24,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_RGB24,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.step_size	    = 1,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_RGB565,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_RGB16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.step_size	    = 1,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_BGR24,
++		.depth		    = 24,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BGR24,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.step_size	    = 1,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_XBGR32,
++		.depth		    = 32,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_BGRA,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.step_size	    = 1,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_RGBX32,
++		.depth		    = 32,
++		.bytesperline_align = 64,
++		.mmal_fmt	    = MMAL_ENCODING_RGBA,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.step_size	    = 1,
++	}, {
++		/* Bayer formats */
++		/* 8 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB8,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB8,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR8,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR8,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG8,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG8,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG8,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG8,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 10 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB10P,
++		.depth		    = 10,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB10P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR10P,
++		.depth		    = 10,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR10P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG10P,
++		.depth		    = 10,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG10P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG10P,
++		.depth		    = 10,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG10P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 12 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB12P,
++		.depth		    = 12,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB12P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR12P,
++		.depth		    = 12,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR12P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG12P,
++		.depth		    = 12,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG12P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG12P,
++		.depth		    = 12,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG12P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 14 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB14P,
++		.depth		    = 14,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB14P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR14P,
++		.depth		    = 14,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR14P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG14P,
++		.depth		    = 14,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG14P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG14P,
++		.depth		    = 14,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG14P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 16 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB16,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR16,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG16,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG16,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* Monochrome MIPI formats */
++		/* 8 bit */
++		.fourcc		    = V4L2_PIX_FMT_GREY,
++		.depth		    = 8,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_GREY,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 10 bit */
++		.fourcc		    = V4L2_PIX_FMT_Y10P,
++		.depth		    = 10,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y10P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 12 bit */
++		.fourcc		    = V4L2_PIX_FMT_Y12P,
++		.depth		    = 12,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y12P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 14 bit */
++		.fourcc		    = V4L2_PIX_FMT_Y14P,
++		.depth		    = 14,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y14P,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 16 bit */
++		.fourcc		    = V4L2_PIX_FMT_Y16,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y16,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_META_FMT_BCM2835_ISP_STATS,
++		.mmal_fmt	    = MMAL_ENCODING_BRCM_STATS,
++		/* The rest are not valid fields for stats. */
++	}
++};
++
++#endif
+--- /dev/null
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -0,0 +1,1694 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Broadcom BCM2835 ISP driver
++ *
++ * Copyright © 2019-2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Author: Naushir Patuck (naush@raspberrypi.com)
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-event.h>
++#include <media/v4l2-ioctl.h>
++#include <media/videobuf2-dma-contig.h>
++
++#include "vchiq-mmal/mmal-msg.h"
++#include "vchiq-mmal/mmal-parameters.h"
++#include "vchiq-mmal/mmal-vchiq.h"
++
++#include "vc-sm-cma/vc_sm_knl.h"
++
++#include "bcm2835-isp-ctrls.h"
++#include "bcm2835-isp-fmts.h"
++
++static unsigned int debug;
++module_param(debug, uint, 0644);
++MODULE_PARM_DESC(debug, "activates debug info");
++
++static unsigned int video_nr = 13;
++module_param(video_nr, uint, 0644);
++MODULE_PARM_DESC(video_nr, "base video device number");
++
++#define BCM2835_ISP_NAME "bcm2835-isp"
++#define BCM2835_ISP_ENTITY_NAME_LEN 32
++
++#define BCM2835_ISP_NUM_OUTPUTS 1
++#define BCM2835_ISP_NUM_CAPTURES 2
++#define BCM2835_ISP_NUM_METADATA 1
++
++#define BCM2835_ISP_NUM_NODES						\
++		(BCM2835_ISP_NUM_OUTPUTS + BCM2835_ISP_NUM_CAPTURES +	\
++		 BCM2835_ISP_NUM_METADATA)
++
++/* Default frame dimension of 1280 pixels. */
++#define DEFAULT_DIM 1280U
++/*
++ * Maximum frame dimension of 16384 pixels.  Even though the ISP runs in tiles,
++ * have a sensible limit so that we do not create an excessive number of tiles
++ * to process.
++ */
++#define MAX_DIM 16384U
++/*
++ * Minimum frame dimension of 64 pixels.  Anything lower, and the tiling
++ * algorithm may not be able to cope when applying filter context.
++ */
++#define MIN_DIM 64U
++
++/* Timeout for stop_streaming to allow all buffers to return */
++#define COMPLETE_TIMEOUT (2 * HZ)
++
++/* Per-queue, driver-specific private data */
++struct bcm2835_isp_q_data {
++	/*
++	 * These parameters should be treated as gospel, with everything else
++	 * being determined from them.
++	 */
++	unsigned int bytesperline;
++	unsigned int width;
++	unsigned int height;
++	unsigned int sizeimage;
++	const struct bcm2835_isp_fmt *fmt;
++};
++
++/*
++ * Structure to describe a single node /dev/video<N> which represents a single
++ * input or output queue to the ISP device.
++ */
++struct bcm2835_isp_node {
++	int vfl_dir;
++	unsigned int id;
++	const char *name;
++	struct vchiq_mmal_port *port;
++	struct video_device vfd;
++	struct media_pad pad;
++	struct media_intf_devnode *intf_devnode;
++	struct media_link *intf_link;
++	struct mutex lock; /* top level device node lock */
++	struct mutex queue_lock;
++
++	struct vb2_queue queue;
++	unsigned int sequence;
++
++	/* The list of formats supported on the node. */
++	struct bcm2835_isp_fmt const **supported_fmts;
++	unsigned int num_supported_fmts;
++
++	struct bcm2835_isp_q_data q_data;
++
++	/* Parent device structure */
++	struct bcm2835_isp_dev *dev;
++
++	bool registered;
++	bool media_node_registered;
++};
++
++/*
++ * Structure representing the entire ISP device, comprising several input and
++ * output nodes /dev/video<N>.
++ */
++struct bcm2835_isp_dev {
++	struct v4l2_device v4l2_dev;
++	struct device *dev;
++	struct v4l2_ctrl_handler ctrl_handler;
++	struct media_device mdev;
++	struct media_entity entity;
++	bool media_device_registered;
++	bool media_entity_registered;
++	struct vchiq_mmal_instance *mmal_instance;
++	struct vchiq_mmal_component *component;
++	struct completion frame_cmplt;
++
++	struct bcm2835_isp_node node[BCM2835_ISP_NUM_NODES];
++	struct media_pad pad[BCM2835_ISP_NUM_NODES];
++	atomic_t num_streaming;
++
++	/* Image pipeline controls. */
++	int r_gain;
++	int b_gain;
++};
++
++struct bcm2835_isp_buffer {
++	struct vb2_v4l2_buffer vb;
++	struct mmal_buffer mmal;
++};
++
++static
++inline struct bcm2835_isp_dev *node_get_dev(struct bcm2835_isp_node *node)
++{
++	return node->dev;
++}
++
++static inline bool node_is_output(struct bcm2835_isp_node *node)
++{
++	return node->queue.type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
++}
++
++static inline bool node_is_capture(struct bcm2835_isp_node *node)
++{
++	return node->queue.type == V4L2_BUF_TYPE_VIDEO_CAPTURE;
++}
++
++static inline bool node_is_stats(struct bcm2835_isp_node *node)
++{
++	return node->queue.type == V4L2_BUF_TYPE_META_CAPTURE;
++}
++
++static inline enum v4l2_buf_type index_to_queue_type(int index)
++{
++	if (index < BCM2835_ISP_NUM_OUTPUTS)
++		return V4L2_BUF_TYPE_VIDEO_OUTPUT;
++	else if (index < BCM2835_ISP_NUM_OUTPUTS + BCM2835_ISP_NUM_CAPTURES)
++		return V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	else
++		return V4L2_BUF_TYPE_META_CAPTURE;
++}
++
++static int set_isp_param(struct bcm2835_isp_node *node, u32 parameter,
++			 void *value, u32 value_size)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++
++	return vchiq_mmal_port_parameter_set(dev->mmal_instance, node->port,
++					     parameter, value, value_size);
++}
++
++static int set_wb_gains(struct bcm2835_isp_node *node)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct mmal_parameter_awbgains gains = {
++		.r_gain = { dev->r_gain, 1000 },
++		.b_gain = { dev->b_gain, 1000 }
++	};
++
++	return set_isp_param(node, MMAL_PARAMETER_CUSTOM_AWB_GAINS,
++			     &gains, sizeof(gains));
++}
++
++static int set_digital_gain(struct bcm2835_isp_node *node, uint32_t gain)
++{
++	struct mmal_parameter_rational digital_gain = {
++		.num = gain,
++		.den = 1000
++	};
++
++	return set_isp_param(node, MMAL_PARAMETER_DIGITAL_GAIN,
++			     &digital_gain, sizeof(digital_gain));
++}
++
++static const struct bcm2835_isp_fmt *get_fmt(u32 mmal_fmt)
++{
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(supported_formats); i++) {
++		if (supported_formats[i].mmal_fmt == mmal_fmt)
++			return &supported_formats[i];
++	}
++	return NULL;
++}
++
++static const
++struct bcm2835_isp_fmt *find_format_by_fourcc(unsigned int fourcc,
++					      struct bcm2835_isp_node *node)
++{
++	const struct bcm2835_isp_fmt *fmt;
++	unsigned int i;
++
++	for (i = 0; i < node->num_supported_fmts; i++) {
++		fmt = node->supported_fmts[i];
++		if (fmt->fourcc == fourcc)
++			return fmt;
++	}
++
++	return NULL;
++}
++
++static const
++struct bcm2835_isp_fmt *find_format(struct v4l2_format *f,
++				    struct bcm2835_isp_node *node)
++{
++	return find_format_by_fourcc(node_is_stats(node) ?
++				     f->fmt.meta.dataformat :
++				     f->fmt.pix.pixelformat,
++				     node);
++}
++
++/* vb2_to_mmal_buffer() - converts vb2 buffer header to MMAL
++ *
++ * Copies all the required fields from a VB2 buffer to the MMAL buffer header,
++ * ready for sending to the VPU.
++ */
++static void vb2_to_mmal_buffer(struct mmal_buffer *buf,
++			       struct vb2_v4l2_buffer *vb2)
++{
++	u64 pts;
++
++	buf->mmal_flags = 0;
++	if (vb2->flags & V4L2_BUF_FLAG_KEYFRAME)
++		buf->mmal_flags |= MMAL_BUFFER_HEADER_FLAG_KEYFRAME;
++
++	/* Data must be framed correctly as one frame per buffer. */
++	buf->mmal_flags |= MMAL_BUFFER_HEADER_FLAG_FRAME_END;
++
++	buf->length = vb2->vb2_buf.planes[0].bytesused;
++	/*
++	 * Minor ambiguity in the V4L2 spec as to whether passing in a 0 length
++	 * buffer, or one with V4L2_BUF_FLAG_LAST set denotes end of stream.
++	 * Handle either.
++	 */
++	if (!buf->length || vb2->flags & V4L2_BUF_FLAG_LAST)
++		buf->mmal_flags |= MMAL_BUFFER_HEADER_FLAG_EOS;
++
++	/* vb2 timestamps in nsecs, mmal in usecs */
++	pts = vb2->vb2_buf.timestamp;
++	do_div(pts, 1000);
++	buf->pts = pts;
++	buf->dts = MMAL_TIME_UNKNOWN;
++}
++
++static void mmal_buffer_cb(struct vchiq_mmal_instance *instance,
++			   struct vchiq_mmal_port *port, int status,
++			   struct mmal_buffer *mmal_buf)
++{
++	struct bcm2835_isp_buffer *q_buf;
++	struct bcm2835_isp_node *node = port->cb_ctx;
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct vb2_v4l2_buffer *vb2;
++
++	q_buf = container_of(mmal_buf, struct bcm2835_isp_buffer, mmal);
++	vb2 = &q_buf->vb;
++	v4l2_dbg(2, debug, &dev->v4l2_dev,
++		 "%s: port:%s[%d], status:%d, buf:%p, dmabuf:%p, length:%lu, flags %u, pts %lld\n",
++		 __func__, node_is_output(node) ? "input" : "output", node->id,
++		 status, mmal_buf, mmal_buf->dma_buf, mmal_buf->length,
++		 mmal_buf->mmal_flags, mmal_buf->pts);
++
++	if (mmal_buf->cmd)
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Unexpected event on output callback - %08x\n",
++			 __func__, mmal_buf->cmd);
++
++	if (status) {
++		/* error in transfer */
++		if (vb2) {
++			/* there was a buffer with the error so return it */
++			vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_ERROR);
++		}
++		return;
++	}
++
++	/* vb2 timestamps in nsecs, mmal in usecs */
++	vb2->vb2_buf.timestamp = mmal_buf->pts * 1000;
++	vb2->sequence = node->sequence++;
++	vb2_set_plane_payload(&vb2->vb2_buf, 0, mmal_buf->length);
++	vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_DONE);
++
++	if (!port->enabled)
++		complete(&dev->frame_cmplt);
++}
++
++static void setup_mmal_port_format(struct bcm2835_isp_node *node,
++				   struct vchiq_mmal_port *port)
++{
++	struct bcm2835_isp_q_data *q_data = &node->q_data;
++
++	port->format.encoding = q_data->fmt->mmal_fmt;
++	/* Raw image format - set width/height */
++	port->es.video.width = (q_data->bytesperline << 3) / q_data->fmt->depth;
++	port->es.video.height = q_data->height;
++	port->es.video.crop.width = q_data->width;
++	port->es.video.crop.height = q_data->height;
++	port->es.video.crop.x = 0;
++	port->es.video.crop.y = 0;
++};
++
++static int setup_mmal_port(struct bcm2835_isp_node *node)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	unsigned int enable = 1;
++	int ret;
++
++	v4l2_dbg(2, debug, &dev->v4l2_dev, "%s: setup %s[%d]\n", __func__,
++		 node->name, node->id);
++
++	vchiq_mmal_port_parameter_set(dev->mmal_instance, node->port,
++				      MMAL_PARAMETER_ZERO_COPY, &enable,
++				      sizeof(enable));
++	setup_mmal_port_format(node, node->port);
++	ret = vchiq_mmal_port_set_format(dev->mmal_instance, node->port);
++	if (ret < 0) {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: vchiq_mmal_port_set_format failed\n",
++			 __func__);
++		return ret;
++	}
++
++	if (node->q_data.sizeimage < node->port->minimum_buffer.size) {
++		v4l2_err(&dev->v4l2_dev,
++			 "buffer size mismatch sizeimage %u < min size %u\n",
++			 node->q_data.sizeimage,
++			 node->port->minimum_buffer.size);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int bcm2835_isp_mmal_buf_cleanup(struct mmal_buffer *mmal_buf)
++{
++	mmal_vchi_buffer_cleanup(mmal_buf);
++
++	if (mmal_buf->dma_buf) {
++		dma_buf_put(mmal_buf->dma_buf);
++		mmal_buf->dma_buf = NULL;
++	}
++
++	return 0;
++}
++
++static int bcm2835_isp_node_queue_setup(struct vb2_queue *q,
++					unsigned int *nbuffers,
++					unsigned int *nplanes,
++					unsigned int sizes[],
++					struct device *alloc_devs[])
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(q);
++	unsigned int size;
++
++	if (setup_mmal_port(node))
++		return -EINVAL;
++
++	size = node->q_data.sizeimage;
++	if (size == 0) {
++		v4l2_info(&node_get_dev(node)->v4l2_dev,
++			  "%s: Image size unset in queue_setup for node %s[%d]\n",
++			  __func__, node->name, node->id);
++		return -EINVAL;
++	}
++
++	if (*nplanes)
++		return sizes[0] < size ? -EINVAL : 0;
++
++	*nplanes = 1;
++	sizes[0] = size;
++
++	node->port->current_buffer.size = size;
++
++	if (*nbuffers < node->port->minimum_buffer.num)
++		*nbuffers = node->port->minimum_buffer.num;
++
++	node->port->current_buffer.num = *nbuffers;
++
++	v4l2_dbg(2, debug, &node_get_dev(node)->v4l2_dev,
++		 "%s: Image size %u, nbuffers %u for node %s[%d]\n",
++		 __func__, sizes[0], *nbuffers, node->name, node->id);
++	return 0;
++}
++
++static int bcm2835_isp_buf_init(struct vb2_buffer *vb)
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(vb->vb2_queue);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
++	struct bcm2835_isp_buffer *buf =
++		container_of(vb2, struct bcm2835_isp_buffer, vb);
++
++	v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: vb %p\n", __func__, vb);
++
++	buf->mmal.buffer = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
++	buf->mmal.buffer_size = vb2_plane_size(&buf->vb.vb2_buf, 0);
++	mmal_vchi_buffer_init(dev->mmal_instance, &buf->mmal);
++	return 0;
++}
++
++static int bcm2835_isp_buf_prepare(struct vb2_buffer *vb)
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(vb->vb2_queue);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
++	struct bcm2835_isp_buffer *buf =
++		container_of(vb2, struct bcm2835_isp_buffer, vb);
++	struct dma_buf *dma_buf;
++	int ret;
++
++	v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: type: %d ptr %p\n",
++		 __func__, vb->vb2_queue->type, vb);
++
++	if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
++		if (vb2->field == V4L2_FIELD_ANY)
++			vb2->field = V4L2_FIELD_NONE;
++		if (vb2->field != V4L2_FIELD_NONE) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s field isn't supported\n", __func__);
++			return -EINVAL;
++		}
++	}
++
++	if (vb2_plane_size(vb, 0) < node->q_data.sizeimage) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s data will not fit into plane (%lu < %lu)\n",
++			 __func__, vb2_plane_size(vb, 0),
++			 (long)node->q_data.sizeimage);
++		return -EINVAL;
++	}
++
++	if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type))
++		vb2_set_plane_payload(vb, 0, node->q_data.sizeimage);
++
++	switch (vb->memory) {
++	case VB2_MEMORY_DMABUF:
++		dma_buf = dma_buf_get(vb->planes[0].m.fd);
++
++		if (dma_buf != buf->mmal.dma_buf) {
++			/*
++			 * dmabuf either hasn't already been mapped, or it has
++			 * changed.
++			 */
++			if (buf->mmal.dma_buf) {
++				v4l2_err(&dev->v4l2_dev,
++					 "%s Buffer changed - why did the core not call cleanup?\n",
++					 __func__);
++				bcm2835_isp_mmal_buf_cleanup(&buf->mmal);
++			}
++
++			buf->mmal.dma_buf = dma_buf;
++		} else {
++			/*
++			 * Already have a reference to the buffer, so release it
++			 * here.
++			 */
++			dma_buf_put(dma_buf);
++		}
++		ret = 0;
++		break;
++	case VB2_MEMORY_MMAP:
++		/*
++		 * We want to do this at init, but vb2_core_expbuf checks that
++		 * the index < q->num_buffers, and q->num_buffers only gets
++		 * updated once all the buffers are allocated.
++		 */
++		if (!buf->mmal.dma_buf) {
++			ret = vb2_core_expbuf_dmabuf(vb->vb2_queue,
++						     vb->vb2_queue->type,
++						     vb->index, 0, O_CLOEXEC,
++						     &buf->mmal.dma_buf);
++			v4l2_dbg(3, debug, &dev->v4l2_dev,
++				 "%s: exporting ptr %p to dmabuf %p\n",
++				 __func__, vb, buf->mmal.dma_buf);
++			if (ret)
++				v4l2_err(&dev->v4l2_dev,
++					 "%s: Failed to expbuf idx %d, ret %d\n",
++					 __func__, vb->index, ret);
++		} else {
++			ret = 0;
++		}
++		break;
++	default:
++		ret = -EINVAL;
++		break;
++	}
++
++	return ret;
++}
++
++static void bcm2835_isp_node_buffer_queue(struct vb2_buffer *buf)
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(buf->vb2_queue);
++	struct vb2_v4l2_buffer *vbuf =
++		container_of(buf, struct vb2_v4l2_buffer, vb2_buf);
++	struct bcm2835_isp_buffer *buffer =
++		container_of(vbuf, struct bcm2835_isp_buffer, vb);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++
++	v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: node %s[%d], buffer %p\n",
++		 __func__, node->name, node->id, buffer);
++
++	vb2_to_mmal_buffer(&buffer->mmal, &buffer->vb);
++	v4l2_dbg(3, debug, &dev->v4l2_dev,
++		 "%s: node %s[%d] - submitting  mmal dmabuf %p\n", __func__,
++		 node->name, node->id, buffer->mmal.dma_buf);
++	vchiq_mmal_submit_buffer(dev->mmal_instance, node->port, &buffer->mmal);
++}
++
++static void bcm2835_isp_buffer_cleanup(struct vb2_buffer *vb)
++{
++	struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(vb);
++	struct bcm2835_isp_buffer *buffer =
++		container_of(vb2, struct bcm2835_isp_buffer, vb);
++
++	bcm2835_isp_mmal_buf_cleanup(&buffer->mmal);
++}
++
++static int bcm2835_isp_node_start_streaming(struct vb2_queue *q,
++					    unsigned int count)
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(q);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	int ret;
++
++	v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: node %s[%d] (count %u)\n",
++		 __func__, node->name, node->id, count);
++
++	ret = vchiq_mmal_component_enable(dev->mmal_instance, dev->component);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev, "%s: Failed enabling component, ret %d\n",
++			 __func__, ret);
++		return -EIO;
++	}
++
++	node->sequence = 0;
++	node->port->cb_ctx = node;
++	ret = vchiq_mmal_port_enable(dev->mmal_instance, node->port,
++				     mmal_buffer_cb);
++	if (!ret)
++		atomic_inc(&dev->num_streaming);
++	else
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Failed enabling port, ret %d\n", __func__, ret);
++
++	return ret;
++}
++
++static void bcm2835_isp_node_stop_streaming(struct vb2_queue *q)
++{
++	struct bcm2835_isp_node *node = vb2_get_drv_priv(q);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	unsigned int i;
++	int ret;
++
++	v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: node %s[%d], mmal port %p\n",
++		 __func__, node->name, node->id, node->port);
++
++	init_completion(&dev->frame_cmplt);
++
++	/* Disable MMAL port - this will flush buffers back */
++	ret = vchiq_mmal_port_disable(dev->mmal_instance, node->port);
++	if (ret)
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Failed disabling %s port, ret %d\n", __func__,
++			 node_is_output(node) ? "i/p" : "o/p",
++			 ret);
++
++	while (atomic_read(&node->port->buffers_with_vpu)) {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: Waiting for buffers to be returned - %d outstanding\n",
++			 __func__, atomic_read(&node->port->buffers_with_vpu));
++		ret = wait_for_completion_timeout(&dev->frame_cmplt,
++						  COMPLETE_TIMEOUT);
++		if (ret <= 0) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: Timeout waiting for buffers to be returned - %d outstanding\n",
++				 __func__,
++				 atomic_read(&node->port->buffers_with_vpu));
++			break;
++		}
++	}
++
++	/* Release the VCSM handle here to release the associated dmabuf */
++	for (i = 0; i < q->num_buffers; i++) {
++		struct vb2_v4l2_buffer *vb2 = to_vb2_v4l2_buffer(q->bufs[i]);
++		struct bcm2835_isp_buffer *buf =
++			container_of(vb2, struct bcm2835_isp_buffer, vb);
++		bcm2835_isp_mmal_buf_cleanup(&buf->mmal);
++	}
++
++	atomic_dec(&dev->num_streaming);
++	/* If all ports disabled, then disable the component */
++	if (atomic_read(&dev->num_streaming) == 0) {
++		ret = vchiq_mmal_component_disable(dev->mmal_instance,
++						   dev->component);
++		if (ret) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: Failed disabling component, ret %d\n",
++				 __func__, ret);
++		}
++	}
++
++	/*
++	 * Simply wait for any vb2 buffers to finish. We could take steps to
++	 * make them complete more quickly if we care, or even return them
++	 * ourselves.
++	 */
++	vb2_wait_for_all_buffers(&node->queue);
++}
++
++static const struct vb2_ops bcm2835_isp_node_queue_ops = {
++	.queue_setup		= bcm2835_isp_node_queue_setup,
++	.buf_init		= bcm2835_isp_buf_init,
++	.buf_prepare		= bcm2835_isp_buf_prepare,
++	.buf_queue		= bcm2835_isp_node_buffer_queue,
++	.buf_cleanup		= bcm2835_isp_buffer_cleanup,
++	.start_streaming	= bcm2835_isp_node_start_streaming,
++	.stop_streaming		= bcm2835_isp_node_stop_streaming,
++};
++
++static const
++struct bcm2835_isp_fmt *get_default_format(struct bcm2835_isp_node *node)
++{
++	return node->supported_fmts[0];
++}
++
++static inline unsigned int get_bytesperline(int width,
++					    const struct bcm2835_isp_fmt *fmt)
++{
++	/* GPU aligns 24bpp images to a multiple of 32 pixels (not bytes). */
++	if (fmt->depth == 24)
++		return ALIGN(width, 32) * 3;
++	else
++		return ALIGN((width * fmt->depth) >> 3, fmt->bytesperline_align);
++}
++
++static inline unsigned int get_sizeimage(int bpl, int width, int height,
++					 const struct bcm2835_isp_fmt *fmt)
++{
++	return (bpl * height * fmt->size_multiplier_x2) >> 1;
++}
++
++static int bcm2835_isp_s_ctrl(struct v4l2_ctrl *ctrl)
++{
++	struct bcm2835_isp_dev *dev =
++	      container_of(ctrl->handler, struct bcm2835_isp_dev, ctrl_handler);
++	struct bcm2835_isp_node *node = &dev->node[0];
++	int ret = 0;
++
++	/*
++	 * The ISP firmware driver will ensure these settings are applied on
++	 * a frame boundary, so we are safe to write them as they come in.
++	 *
++	 * Note that the bcm2835_isp_* param structures are identical to the
++	 * mmal-parameters.h definitions.  This avoids the need for unnecessary
++	 * field-by-field copying between structures.
++	 */
++	switch (ctrl->id) {
++	case V4L2_CID_RED_BALANCE:
++		dev->r_gain = ctrl->val;
++		ret = set_wb_gains(node);
++		break;
++	case V4L2_CID_BLUE_BALANCE:
++		dev->b_gain = ctrl->val;
++		ret = set_wb_gains(node);
++		break;
++	case V4L2_CID_DIGITAL_GAIN:
++		ret = set_digital_gain(node, ctrl->val);
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_CC_MATRIX:
++		ret = set_isp_param(node, MMAL_PARAMETER_CUSTOM_CCM,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_custom_ccm));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_LENS_SHADING:
++	{
++		struct bcm2835_isp_lens_shading *v4l2_ls;
++		struct mmal_parameter_lens_shading_v2 ls;
++		struct dma_buf *dmabuf;
++		void *vcsm_handle;
++
++		v4l2_ls = (struct bcm2835_isp_lens_shading *)ctrl->p_new.p_u8;
++		/*
++		 * struct bcm2835_isp_lens_shading and struct
++		 * mmal_parameter_lens_shading_v2 match so that we can do a
++		 * simple memcpy here.
++		 * Only the dmabuf to the actual table needs any manipulation.
++		 */
++		memcpy(&ls, v4l2_ls, sizeof(ls));
++
++		dmabuf = dma_buf_get(v4l2_ls->dmabuf);
++		if (IS_ERR_OR_NULL(dmabuf))
++			return -EINVAL;
++
++		ret = vc_sm_cma_import_dmabuf(dmabuf, &vcsm_handle);
++		if (ret) {
++			dma_buf_put(dmabuf);
++			return -EINVAL;
++		}
++
++		ls.mem_handle_table = vc_sm_cma_int_handle(vcsm_handle);
++		if (ls.mem_handle_table)
++			/* The VPU will take a reference on the vcsm handle,
++			 * which in turn will retain a reference on the dmabuf.
++			 * This code can therefore safely release all
++			 * references to the buffer.
++			 */
++			ret = set_isp_param(node,
++					    MMAL_PARAMETER_LENS_SHADING_OVERRIDE,
++					    &ls,
++					    sizeof(ls));
++		else
++			ret = -EINVAL;
++
++		vc_sm_cma_free(vcsm_handle);
++		dma_buf_put(dmabuf);
++		break;
++	}
++	case V4L2_CID_USER_BCM2835_ISP_BLACK_LEVEL:
++		ret = set_isp_param(node, MMAL_PARAMETER_BLACK_LEVEL,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_black_level));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_GEQ:
++		ret = set_isp_param(node, MMAL_PARAMETER_GEQ,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_geq));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_GAMMA:
++		ret = set_isp_param(node, MMAL_PARAMETER_GAMMA,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_gamma));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_DENOISE:
++		ret = set_isp_param(node, MMAL_PARAMETER_DENOISE,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_denoise));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_SHARPEN:
++		ret = set_isp_param(node, MMAL_PARAMETER_SHARPEN,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_sharpen));
++		break;
++	case V4L2_CID_USER_BCM2835_ISP_DPC:
++		ret = set_isp_param(node, MMAL_PARAMETER_DPC,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_dpc));
++		break;
++	default:
++		v4l2_info(&dev->v4l2_dev, "Unrecognised control\n");
++		ret = -EINVAL;
++	}
++
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev, "%s: Failed setting ctrl \"%s\" (%08x), err %d\n",
++			 __func__, ctrl->name, ctrl->id, ret);
++		ret = -EIO;
++	}
++
++	return ret;
++}
++
++static const struct v4l2_ctrl_ops bcm2835_isp_ctrl_ops = {
++	.s_ctrl = bcm2835_isp_s_ctrl,
++};
++
++static const struct v4l2_file_operations bcm2835_isp_fops = {
++	.owner		= THIS_MODULE,
++	.open		= v4l2_fh_open,
++	.release	= vb2_fop_release,
++	.poll		= vb2_fop_poll,
++	.unlocked_ioctl = video_ioctl2,
++	.mmap		= vb2_fop_mmap
++};
++
++static int populate_qdata_fmt(struct v4l2_format *f,
++			      struct bcm2835_isp_node *node)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct bcm2835_isp_q_data *q_data = &node->q_data;
++	int ret;
++
++	if (!node_is_stats(node)) {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: Setting pix format for type %d, wxh: %ux%u, fmt: %08x, size %u\n",
++			 __func__, f->type, f->fmt.pix.width, f->fmt.pix.height,
++			 f->fmt.pix.pixelformat, f->fmt.pix.sizeimage);
++
++		q_data->fmt = find_format(f, node);
++		q_data->width = f->fmt.pix.width;
++		q_data->height = f->fmt.pix.height;
++		q_data->height = f->fmt.pix.height;
++
++		/* All parameters should have been set correctly by try_fmt */
++		q_data->bytesperline = f->fmt.pix.bytesperline;
++		q_data->sizeimage = f->fmt.pix.sizeimage;
++	} else {
++		v4l2_dbg(1, debug, &dev->v4l2_dev,
++			 "%s: Setting meta format for fmt: %08x, size %u\n",
++			 __func__, f->fmt.meta.dataformat,
++			 f->fmt.meta.buffersize);
++
++		q_data->fmt = find_format(f, node);
++		q_data->width = 0;
++		q_data->height = 0;
++		q_data->bytesperline = 0;
++		q_data->sizeimage = f->fmt.meta.buffersize;
++	}
++
++	v4l2_dbg(1, debug, &dev->v4l2_dev,
++		 "%s: Calculated bpl as %u, size %u\n", __func__,
++		 q_data->bytesperline, q_data->sizeimage);
++
++	setup_mmal_port_format(node, node->port);
++	ret = vchiq_mmal_port_set_format(dev->mmal_instance, node->port);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Failed vchiq_mmal_port_set_format on port, ret %d\n",
++			 __func__, ret);
++		ret = -EINVAL;
++	}
++
++	if (q_data->sizeimage < node->port->minimum_buffer.size) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Current buffer size of %u < min buf size %u - driver mismatch to MMAL\n",
++			 __func__,
++			 q_data->sizeimage,
++			 node->port->minimum_buffer.size);
++	}
++
++	v4l2_dbg(1, debug, &dev->v4l2_dev,
++		 "%s: Set format for type %d, wxh: %dx%d, fmt: %08x, size %u\n",
++		 __func__, f->type, q_data->width, q_data->height,
++		 q_data->fmt->fourcc, q_data->sizeimage);
++
++	return ret;
++}
++
++static int bcm2835_isp_node_querycap(struct file *file, void *priv,
++				     struct v4l2_capability *cap)
++{
++	strscpy(cap->driver, BCM2835_ISP_NAME, sizeof(cap->driver));
++	strscpy(cap->card, BCM2835_ISP_NAME, sizeof(cap->card));
++	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
++		 BCM2835_ISP_NAME);
++
++	return 0;
++}
++
++static int bcm2835_isp_node_g_fmt(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct bcm2835_isp_node *node = video_drvdata(file);
++
++	if (f->type != node->queue.type)
++		return -EINVAL;
++
++	if (node_is_stats(node)) {
++		f->fmt.meta.dataformat = V4L2_META_FMT_BCM2835_ISP_STATS;
++		f->fmt.meta.buffersize =
++			node->port->minimum_buffer.size;
++	} else {
++		struct bcm2835_isp_q_data *q_data = &node->q_data;
++
++		f->fmt.pix.width = q_data->width;
++		f->fmt.pix.height = q_data->height;
++		f->fmt.pix.field = V4L2_FIELD_NONE;
++		f->fmt.pix.pixelformat = q_data->fmt->fourcc;
++		f->fmt.pix.bytesperline = q_data->bytesperline;
++		f->fmt.pix.sizeimage = q_data->sizeimage;
++		f->fmt.pix.colorspace = q_data->fmt->colorspace;
++	}
++
++	return 0;
++}
++
++static int bcm2835_isp_node_enum_fmt(struct file *file, void  *priv,
++				     struct v4l2_fmtdesc *f)
++{
++	struct bcm2835_isp_node *node = video_drvdata(file);
++
++	if (f->type != node->queue.type)
++		return -EINVAL;
++
++	if (f->index < node->num_supported_fmts) {
++		/* Format found */
++		f->pixelformat = node->supported_fmts[f->index]->fourcc;
++		f->flags = 0;
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int bcm2835_isp_enum_framesizes(struct file *file, void *priv,
++				       struct v4l2_frmsizeenum *fsize)
++{
++	struct bcm2835_isp_node *node = video_drvdata(file);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	const struct bcm2835_isp_fmt *fmt;
++
++	if (node_is_stats(node) || fsize->index)
++		return -EINVAL;
++
++	fmt = find_format_by_fourcc(fsize->pixel_format, node);
++	if (!fmt) {
++		v4l2_err(&dev->v4l2_dev, "Invalid pixel code: %x\n",
++			 fsize->pixel_format);
++		return -EINVAL;
++	}
++
++	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
++	fsize->stepwise.min_width = MIN_DIM;
++	fsize->stepwise.max_width = MAX_DIM;
++	fsize->stepwise.step_width = fmt->step_size;
++
++	fsize->stepwise.min_height = MIN_DIM;
++	fsize->stepwise.max_height = MAX_DIM;
++	fsize->stepwise.step_height = fmt->step_size;
++
++	return 0;
++}
++
++static int bcm2835_isp_node_try_fmt(struct file *file, void *priv,
++				    struct v4l2_format *f)
++{
++	struct bcm2835_isp_node *node = video_drvdata(file);
++	const struct bcm2835_isp_fmt *fmt;
++
++	if (f->type != node->queue.type)
++		return -EINVAL;
++
++	fmt = find_format(f, node);
++	if (!fmt)
++		fmt = get_default_format(node);
++
++	if (!node_is_stats(node)) {
++		f->fmt.pix.width = max(min(f->fmt.pix.width, MAX_DIM),
++				       MIN_DIM);
++		f->fmt.pix.height = max(min(f->fmt.pix.height, MAX_DIM),
++					MIN_DIM);
++
++		f->fmt.pix.pixelformat = fmt->fourcc;
++		f->fmt.pix.colorspace = fmt->colorspace;
++		f->fmt.pix.bytesperline = get_bytesperline(f->fmt.pix.width,
++							   fmt);
++		f->fmt.pix.field = V4L2_FIELD_NONE;
++		f->fmt.pix.sizeimage =
++			get_sizeimage(f->fmt.pix.bytesperline, f->fmt.pix.width,
++				      f->fmt.pix.height, fmt);
++	} else {
++		f->fmt.meta.dataformat = fmt->fourcc;
++		f->fmt.meta.buffersize = node->port->minimum_buffer.size;
++	}
++
++	return 0;
++}
++
++static int bcm2835_isp_node_s_fmt(struct file *file, void *priv,
++				  struct v4l2_format *f)
++{
++	struct bcm2835_isp_node *node = video_drvdata(file);
++	int ret;
++
++	if (f->type != node->queue.type)
++		return -EINVAL;
++
++	ret = bcm2835_isp_node_try_fmt(file, priv, f);
++	if (ret)
++		return ret;
++
++	v4l2_dbg(1, debug, &node_get_dev(node)->v4l2_dev,
++		 "%s: Set format for node %s[%d]\n",
++		 __func__, node->name, node->id);
++
++	return populate_qdata_fmt(f, node);
++}
++
++static int bcm2835_isp_node_s_selection(struct file *file, void *fh,
++					struct v4l2_selection *s)
++{
++	struct mmal_parameter_crop crop;
++	struct bcm2835_isp_node *node = video_drvdata(file);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++
++	/* This return value is required fro V4L2 compliance. */
++	if (node_is_stats(node))
++		return -ENOTTY;
++
++	if (!s->r.width || !s->r.height)
++		return -EINVAL;
++
++	/* We can only set crop on the input. */
++	switch (s->target) {
++	case V4L2_SEL_TGT_CROP:
++		/*
++		 * Adjust the crop window if it goes outside of the frame
++		 * dimensions.
++		 */
++		s->r.left = min((unsigned int)max(s->r.left, 0),
++				node->q_data.width - MIN_DIM);
++		s->r.top = min((unsigned int)max(s->r.top, 0),
++			       node->q_data.height - MIN_DIM);
++		s->r.width = max(min(s->r.width,
++				     node->q_data.width - s->r.left), MIN_DIM);
++		s->r.height = max(min(s->r.height,
++				      node->q_data.height - s->r.top), MIN_DIM);
++		break;
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++		/* Default (i.e. no) crop window. */
++		s->r.left = 0;
++		s->r.top = 0;
++		s->r.width = node->q_data.width;
++		s->r.height = node->q_data.height;
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	crop.rect.x = s->r.left;
++	crop.rect.y = s->r.top;
++	crop.rect.width = s->r.width;
++	crop.rect.height = s->r.height;
++
++	return vchiq_mmal_port_parameter_set(dev->mmal_instance, node->port,
++					     MMAL_PARAMETER_CROP,
++					     &crop, sizeof(crop));
++}
++
++static int bcm2835_isp_node_g_selection(struct file *file, void *fh,
++					struct v4l2_selection *s)
++{
++	struct mmal_parameter_crop crop;
++	struct bcm2835_isp_node *node = video_drvdata(file);
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	u32 crop_size = sizeof(crop);
++	int ret;
++
++	/* We can only return out an input crop. */
++	switch (s->target) {
++	case V4L2_SEL_TGT_CROP:
++		ret = vchiq_mmal_port_parameter_get(dev->mmal_instance,
++						    node->port,
++						    MMAL_PARAMETER_CROP,
++						    &crop, &crop_size);
++		if (!ret) {
++			s->r.left = crop.rect.x;
++			s->r.top = crop.rect.y;
++			s->r.width = crop.rect.width;
++			s->r.height = crop.rect.height;
++		}
++		break;
++	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
++		/* Default (i.e. no) crop window. */
++		s->r.left = 0;
++		s->r.top = 0;
++		s->r.width = node->q_data.width;
++		s->r.height = node->q_data.height;
++		ret = 0;
++		break;
++	default:
++		ret =  -EINVAL;
++	}
++
++	return ret;
++}
++
++static int bcm3285_isp_subscribe_event(struct v4l2_fh *fh,
++				       const struct v4l2_event_subscription *s)
++{
++	switch (s->type) {
++	/* Cannot change source parameters dynamically at runtime. */
++	case V4L2_EVENT_SOURCE_CHANGE:
++		return -EINVAL;
++	case V4L2_EVENT_CTRL:
++		return v4l2_ctrl_subscribe_event(fh, s);
++	default:
++		return v4l2_event_subscribe(fh, s, 4, NULL);
++	}
++}
++
++static const struct v4l2_ioctl_ops bcm2835_isp_node_ioctl_ops = {
++	.vidioc_querycap		= bcm2835_isp_node_querycap,
++	.vidioc_g_fmt_vid_cap		= bcm2835_isp_node_g_fmt,
++	.vidioc_g_fmt_vid_out		= bcm2835_isp_node_g_fmt,
++	.vidioc_g_fmt_meta_cap		= bcm2835_isp_node_g_fmt,
++	.vidioc_s_fmt_vid_cap		= bcm2835_isp_node_s_fmt,
++	.vidioc_s_fmt_vid_out		= bcm2835_isp_node_s_fmt,
++	.vidioc_s_fmt_meta_cap		= bcm2835_isp_node_s_fmt,
++	.vidioc_try_fmt_vid_cap		= bcm2835_isp_node_try_fmt,
++	.vidioc_try_fmt_vid_out		= bcm2835_isp_node_try_fmt,
++	.vidioc_try_fmt_meta_cap	= bcm2835_isp_node_try_fmt,
++	.vidioc_s_selection		= bcm2835_isp_node_s_selection,
++	.vidioc_g_selection		= bcm2835_isp_node_g_selection,
++
++	.vidioc_enum_fmt_vid_cap	= bcm2835_isp_node_enum_fmt,
++	.vidioc_enum_fmt_vid_out	= bcm2835_isp_node_enum_fmt,
++	.vidioc_enum_fmt_meta_cap	= bcm2835_isp_node_enum_fmt,
++	.vidioc_enum_framesizes		= bcm2835_isp_enum_framesizes,
++
++	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
++	.vidioc_querybuf		= vb2_ioctl_querybuf,
++	.vidioc_qbuf			= vb2_ioctl_qbuf,
++	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
++	.vidioc_expbuf			= vb2_ioctl_expbuf,
++	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
++	.vidioc_prepare_buf		= vb2_ioctl_prepare_buf,
++
++	.vidioc_streamon		= vb2_ioctl_streamon,
++	.vidioc_streamoff		= vb2_ioctl_streamoff,
++
++	.vidioc_subscribe_event		= bcm3285_isp_subscribe_event,
++	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
++};
++
++/*
++ * Size of the array to provide to the VPU when asking for the list of supported
++ * formats.
++ *
++ * The ISP component currently advertises 44 input formats, so add a small
++ * overhead on that. Should the component advertise more formats then the excess
++ * will be dropped and a warning logged.
++ */
++#define MAX_SUPPORTED_ENCODINGS 50
++
++/* Populate node->supported_fmts with the formats supported by those ports. */
++static int bcm2835_isp_get_supported_fmts(struct bcm2835_isp_node *node)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++	struct bcm2835_isp_fmt const **list;
++	unsigned int i, j, num_encodings;
++	u32 fourccs[MAX_SUPPORTED_ENCODINGS];
++	u32 param_size = sizeof(fourccs);
++	int ret;
++
++	ret = vchiq_mmal_port_parameter_get(dev->mmal_instance, node->port,
++					    MMAL_PARAMETER_SUPPORTED_ENCODINGS,
++					    &fourccs, &param_size);
++
++	if (ret) {
++		if (ret == MMAL_MSG_STATUS_ENOSPC) {
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: port has more encoding than we provided space for. Some are dropped.\n",
++				 __func__);
++			num_encodings = MAX_SUPPORTED_ENCODINGS;
++		} else {
++			v4l2_err(&dev->v4l2_dev, "%s: get_param ret %u.\n",
++				 __func__, ret);
++			return -EINVAL;
++		}
++	} else {
++		num_encodings = param_size / sizeof(u32);
++	}
++
++	/*
++	 * Assume at this stage that all encodings will be supported in V4L2.
++	 * Any that aren't supported will waste a very small amount of memory.
++	 */
++	list = devm_kzalloc(dev->dev,
++			    sizeof(struct bcm2835_isp_fmt *) * num_encodings,
++			    GFP_KERNEL);
++	if (!list)
++		return -ENOMEM;
++	node->supported_fmts = list;
++
++	for (i = 0, j = 0; i < num_encodings; i++) {
++		const struct bcm2835_isp_fmt *fmt = get_fmt(fourccs[i]);
++
++		if (fmt) {
++			list[j] = fmt;
++			j++;
++		}
++	}
++	node->num_supported_fmts = j;
++
++	return 0;
++}
++
++/*
++ * Register a device node /dev/video<N> to go along with one of the ISP's input
++ * or output nodes.
++ */
++static int register_node(struct bcm2835_isp_dev *dev,
++			 struct bcm2835_isp_node *node,
++			 int index)
++{
++	struct video_device *vfd;
++	struct vb2_queue *queue;
++	int ret;
++
++	mutex_init(&node->lock);
++
++	node->dev = dev;
++	vfd = &node->vfd;
++	queue = &node->queue;
++	queue->type = index_to_queue_type(index);
++	/*
++	 * Setup the node type-specific params.
++	 *
++	 * Only the OUTPUT node can set controls and crop windows. However,
++	 * we must allow the s/g_selection ioctl on the stats node as v4l2
++	 * compliance expects it to return a -ENOTTY, and the framework
++	 * does not handle it if the ioctl is disabled.
++	 */
++	switch (queue->type) {
++	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
++		vfd->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
++		node->id = index;
++		node->vfl_dir = VFL_DIR_TX;
++		node->name = "output";
++		node->port = &dev->component->input[node->id];
++		break;
++	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
++		vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
++		/* First Capture node starts at id 0, etc. */
++		node->id = index - BCM2835_ISP_NUM_OUTPUTS;
++		node->vfl_dir = VFL_DIR_RX;
++		node->name = "capture";
++		node->port = &dev->component->output[node->id];
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_S_CTRL);
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_S_SELECTION);
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_G_SELECTION);
++		break;
++	case V4L2_BUF_TYPE_META_CAPTURE:
++		vfd->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
++		node->id = index - BCM2835_ISP_NUM_OUTPUTS;
++		node->vfl_dir = VFL_DIR_RX;
++		node->name = "stats";
++		node->port = &dev->component->output[node->id];
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_S_CTRL);
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_S_SELECTION);
++		v4l2_disable_ioctl(&node->vfd, VIDIOC_G_SELECTION);
++		break;
++	}
++
++	/* We use the selection API instead of the old crop API. */
++	v4l2_disable_ioctl(vfd, VIDIOC_CROPCAP);
++	v4l2_disable_ioctl(vfd, VIDIOC_G_CROP);
++	v4l2_disable_ioctl(vfd, VIDIOC_S_CROP);
++
++	ret = bcm2835_isp_get_supported_fmts(node);
++	if (ret)
++		return ret;
++
++	/* Initialise the video node. */
++	vfd->vfl_type	= VFL_TYPE_VIDEO;
++	vfd->fops	= &bcm2835_isp_fops,
++	vfd->ioctl_ops	= &bcm2835_isp_node_ioctl_ops,
++	vfd->minor	= -1,
++	vfd->release	= video_device_release_empty,
++	vfd->queue	= &node->queue;
++	vfd->lock	= &node->lock;
++	vfd->v4l2_dev	= &dev->v4l2_dev;
++	vfd->vfl_dir	= node->vfl_dir;
++
++	node->q_data.fmt = get_default_format(node);
++	node->q_data.width = DEFAULT_DIM;
++	node->q_data.height = DEFAULT_DIM;
++	node->q_data.bytesperline =
++		get_bytesperline(DEFAULT_DIM, node->q_data.fmt);
++	node->q_data.sizeimage = node_is_stats(node) ?
++				 node->port->recommended_buffer.size :
++				 get_sizeimage(node->q_data.bytesperline,
++					       node->q_data.width,
++					       node->q_data.height,
++					       node->q_data.fmt);
++
++	queue->io_modes = VB2_MMAP | VB2_DMABUF;
++	queue->drv_priv = node;
++	queue->ops = &bcm2835_isp_node_queue_ops;
++	queue->mem_ops = &vb2_dma_contig_memops;
++	queue->buf_struct_size = sizeof(struct bcm2835_isp_buffer);
++	queue->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
++	queue->dev = dev->dev;
++	queue->lock = &node->queue_lock;
++
++	ret = vb2_queue_init(queue);
++	if (ret < 0) {
++		v4l2_info(&dev->v4l2_dev, "vb2_queue_init failed\n");
++		return ret;
++	}
++
++	/* Set some controls and defaults, but only on the VIDEO_OUTPUT node. */
++	if (node_is_output(node)) {
++		unsigned int i;
++
++		/* Use this ctrl template to assign custom ISP ctrls. */
++		struct v4l2_ctrl_config ctrl_template = {
++			.ops		= &bcm2835_isp_ctrl_ops,
++			.type		= V4L2_CTRL_TYPE_U8,
++			.def		= 0,
++			.min		= 0x00,
++			.max		= 0xff,
++			.step		= 1,
++		};
++
++		/* 3 standard controls, and an array of custom controls */
++		ret = v4l2_ctrl_handler_init(&dev->ctrl_handler,
++					     3 + ARRAY_SIZE(custom_ctrls));
++		if (ret) {
++			v4l2_err(&dev->v4l2_dev, "ctrl_handler init failed (%d)\n",
++				 ret);
++			goto queue_cleanup;
++		}
++
++		dev->r_gain = 1000;
++		dev->b_gain = 1000;
++
++		v4l2_ctrl_new_std(&dev->ctrl_handler,  &bcm2835_isp_ctrl_ops,
++				  V4L2_CID_RED_BALANCE, 1, 0xffff, 1,
++				  dev->r_gain);
++
++		v4l2_ctrl_new_std(&dev->ctrl_handler, &bcm2835_isp_ctrl_ops,
++				  V4L2_CID_BLUE_BALANCE, 1, 0xffff, 1,
++				  dev->b_gain);
++
++		v4l2_ctrl_new_std(&dev->ctrl_handler, &bcm2835_isp_ctrl_ops,
++				  V4L2_CID_DIGITAL_GAIN, 1, 0xffff, 1, 1000);
++
++		for (i = 0; i < ARRAY_SIZE(custom_ctrls); i++) {
++			ctrl_template.name = custom_ctrls[i].name;
++			ctrl_template.id = custom_ctrls[i].id;
++			ctrl_template.dims[0] = custom_ctrls[i].size;
++			ctrl_template.flags = custom_ctrls[i].flags;
++			v4l2_ctrl_new_custom(&dev->ctrl_handler,
++					     &ctrl_template, NULL);
++		}
++
++		node->vfd.ctrl_handler = &dev->ctrl_handler;
++		if (dev->ctrl_handler.error) {
++			ret = dev->ctrl_handler.error;
++			v4l2_err(&dev->v4l2_dev, "controls init failed (%d)\n",
++				 ret);
++			v4l2_ctrl_handler_free(&dev->ctrl_handler);
++			goto ctrl_cleanup;
++		}
++	}
++
++	/* Define the device names */
++	snprintf(vfd->name, sizeof(node->vfd.name), "%s-%s%d", BCM2835_ISP_NAME,
++		 node->name, node->id);
++
++	ret = video_register_device(vfd, VFL_TYPE_VIDEO, video_nr + index);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev,
++			 "Failed to register video %s[%d] device node\n",
++			 node->name, node->id);
++		goto ctrl_cleanup;
++	}
++
++	node->registered = true;
++	video_set_drvdata(vfd, node);
++
++	v4l2_info(&dev->v4l2_dev,
++		  "Device node %s[%d] registered as /dev/video%d\n",
++		  node->name, node->id, vfd->num);
++
++	return 0;
++
++ctrl_cleanup:
++	if (node_is_output(node))
++		v4l2_ctrl_handler_free(&dev->ctrl_handler);
++queue_cleanup:
++	vb2_queue_release(&node->queue);
++	return ret;
++}
++
++/* Unregister one of the /dev/video<N> nodes associated with the ISP. */
++static void unregister_node(struct bcm2835_isp_node *node)
++{
++	struct bcm2835_isp_dev *dev = node_get_dev(node);
++
++	v4l2_info(&dev->v4l2_dev,
++		  "Unregistering node %s[%d] device node /dev/video%d\n",
++		  node->name, node->id, node->vfd.num);
++
++	if (node->registered) {
++		video_unregister_device(&node->vfd);
++		if (node_is_output(node))
++			v4l2_ctrl_handler_free(&dev->ctrl_handler);
++		vb2_queue_release(&node->queue);
++	}
++
++	/*
++	 * node->supported_fmts.list is free'd automatically
++	 * as a managed resource.
++	 */
++	node->supported_fmts = NULL;
++	node->num_supported_fmts = 0;
++	node->vfd.ctrl_handler = NULL;
++	node->registered = false;
++}
++
++static void media_controller_unregister(struct bcm2835_isp_dev *dev)
++{
++	unsigned int i;
++
++	v4l2_info(&dev->v4l2_dev, "Unregister from media controller\n");
++
++	if (dev->media_device_registered) {
++		media_device_unregister(&dev->mdev);
++		media_device_cleanup(&dev->mdev);
++		dev->media_device_registered = false;
++	}
++
++	kfree(dev->entity.name);
++	dev->entity.name = NULL;
++
++	if (dev->media_entity_registered) {
++		media_device_unregister_entity(&dev->entity);
++		dev->media_entity_registered = false;
++	}
++
++	for (i = 0; i < BCM2835_ISP_NUM_NODES; i++) {
++		struct bcm2835_isp_node *node = &dev->node[i];
++
++		if (node->media_node_registered) {
++			media_remove_intf_links(node->intf_link->intf);
++			media_entity_remove_links(&dev->node[i].vfd.entity);
++			media_devnode_remove(node->intf_devnode);
++			media_device_unregister_entity(&node->vfd.entity);
++			kfree(node->vfd.entity.name);
++		}
++		node->media_node_registered = false;
++	}
++
++	dev->v4l2_dev.mdev = NULL;
++}
++
++static int media_controller_register_node(struct bcm2835_isp_dev *dev, int num)
++{
++	struct bcm2835_isp_node *node = &dev->node[num];
++	struct media_entity *entity = &node->vfd.entity;
++	int output = node_is_output(node);
++	char *name;
++	int ret;
++
++	v4l2_info(&dev->v4l2_dev,
++		  "Register %s node %d with media controller\n",
++		  output ? "output" : "capture", num);
++	entity->obj_type = MEDIA_ENTITY_TYPE_VIDEO_DEVICE;
++	entity->function = MEDIA_ENT_F_IO_V4L;
++	entity->info.dev.major = VIDEO_MAJOR;
++	entity->info.dev.minor = node->vfd.minor;
++	name = kmalloc(BCM2835_ISP_ENTITY_NAME_LEN, GFP_KERNEL);
++	if (!name) {
++		ret = -ENOMEM;
++		goto error_no_mem;
++	}
++	snprintf(name, BCM2835_ISP_ENTITY_NAME_LEN, "%s0-%s%d",
++		 BCM2835_ISP_NAME, output ? "output" : "capture", num);
++	entity->name = name;
++	node->pad.flags = output ? MEDIA_PAD_FL_SOURCE : MEDIA_PAD_FL_SINK;
++	ret = media_entity_pads_init(entity, 1, &node->pad);
++	if (ret)
++		goto error_pads_init;
++	ret = media_device_register_entity(&dev->mdev, entity);
++	if (ret)
++		goto error_register_entity;
++
++	node->intf_devnode = media_devnode_create(&dev->mdev,
++						  MEDIA_INTF_T_V4L_VIDEO, 0,
++						  VIDEO_MAJOR, node->vfd.minor);
++	if (!node->intf_devnode) {
++		ret = -ENOMEM;
++		goto error_devnode_create;
++	}
++
++	node->intf_link = media_create_intf_link(entity,
++						 &node->intf_devnode->intf,
++						 MEDIA_LNK_FL_IMMUTABLE |
++						 MEDIA_LNK_FL_ENABLED);
++	if (!node->intf_link) {
++		ret = -ENOMEM;
++		goto error_create_intf_link;
++	}
++
++	if (output)
++		ret = media_create_pad_link(entity, 0, &dev->entity, num,
++					    MEDIA_LNK_FL_IMMUTABLE |
++						    MEDIA_LNK_FL_ENABLED);
++	else
++		ret = media_create_pad_link(&dev->entity, num, entity, 0,
++					    MEDIA_LNK_FL_IMMUTABLE |
++					    MEDIA_LNK_FL_ENABLED);
++	if (ret)
++		goto error_create_pad_link;
++
++	dev->node[num].media_node_registered = true;
++	return 0;
++
++error_create_pad_link:
++	media_remove_intf_links(&node->intf_devnode->intf);
++error_create_intf_link:
++	media_devnode_remove(node->intf_devnode);
++error_devnode_create:
++	media_device_unregister_entity(&node->vfd.entity);
++error_register_entity:
++error_pads_init:
++	kfree(entity->name);
++	entity->name = NULL;
++error_no_mem:
++	if (ret)
++		v4l2_info(&dev->v4l2_dev, "Error registering node\n");
++
++	return ret;
++}
++
++static int media_controller_register(struct bcm2835_isp_dev *dev)
++{
++	char *name;
++	unsigned int i;
++	int ret;
++
++	v4l2_dbg(2, debug, &dev->v4l2_dev, "Registering with media controller\n");
++	dev->mdev.dev = dev->dev;
++	strscpy(dev->mdev.model, "bcm2835-isp",
++		sizeof(dev->mdev.model));
++	strscpy(dev->mdev.bus_info, "platform:bcm2835-isp",
++		sizeof(dev->mdev.bus_info));
++	media_device_init(&dev->mdev);
++	dev->v4l2_dev.mdev = &dev->mdev;
++
++	v4l2_dbg(2, debug, &dev->v4l2_dev, "Register entity for nodes\n");
++
++	name = kmalloc(BCM2835_ISP_ENTITY_NAME_LEN, GFP_KERNEL);
++	if (!name) {
++		ret = -ENOMEM;
++		goto done;
++	}
++	snprintf(name, BCM2835_ISP_ENTITY_NAME_LEN, "bcm2835_isp0");
++	dev->entity.name = name;
++	dev->entity.obj_type = MEDIA_ENTITY_TYPE_BASE;
++	dev->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
++
++	for (i = 0; i < BCM2835_ISP_NUM_NODES; i++) {
++		dev->pad[i].flags = node_is_output(&dev->node[i]) ?
++					MEDIA_PAD_FL_SINK : MEDIA_PAD_FL_SOURCE;
++	}
++
++	ret = media_entity_pads_init(&dev->entity, BCM2835_ISP_NUM_NODES,
++				     dev->pad);
++	if (ret)
++		goto done;
++
++	ret = media_device_register_entity(&dev->mdev, &dev->entity);
++	if (ret)
++		goto done;
++
++	dev->media_entity_registered = true;
++	for (i = 0; i < BCM2835_ISP_NUM_NODES; i++) {
++		ret = media_controller_register_node(dev, i);
++		if (ret)
++			goto done;
++	}
++
++	ret = media_device_register(&dev->mdev);
++	if (!ret)
++		dev->media_device_registered = true;
++done:
++	return ret;
++}
++
++static int bcm2835_isp_remove(struct platform_device *pdev)
++{
++	struct bcm2835_isp_dev *dev = platform_get_drvdata(pdev);
++	unsigned int i;
++
++	media_controller_unregister(dev);
++
++	for (i = 0; i < BCM2835_ISP_NUM_NODES; i++)
++		unregister_node(&dev->node[i]);
++
++	v4l2_device_unregister(&dev->v4l2_dev);
++
++	if (dev->component)
++		vchiq_mmal_component_finalise(dev->mmal_instance,
++					      dev->component);
++
++	vchiq_mmal_finalise(dev->mmal_instance);
++
++	return 0;
++}
++
++static int bcm2835_isp_probe(struct platform_device *pdev)
++{
++	struct bcm2835_isp_dev *dev;
++	unsigned int i;
++	int ret;
++
++	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
++	if (!dev)
++		return -ENOMEM;
++
++	dev->dev = &pdev->dev;
++
++	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
++	if (ret)
++		return ret;
++
++	ret = vchiq_mmal_init(&dev->mmal_instance);
++	if (ret) {
++		v4l2_device_unregister(&dev->v4l2_dev);
++		return ret;
++	}
++
++	ret = vchiq_mmal_component_init(dev->mmal_instance, "ril.isp",
++					&dev->component);
++	if (ret) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: failed to create ril.isp component\n", __func__);
++		goto error;
++	}
++
++	if (dev->component->inputs < BCM2835_ISP_NUM_OUTPUTS ||
++	    dev->component->outputs < BCM2835_ISP_NUM_CAPTURES +
++					BCM2835_ISP_NUM_METADATA) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: ril.isp returned %d i/p (%d expected), %d o/p (%d expected) ports\n",
++			  __func__, dev->component->inputs,
++			  BCM2835_ISP_NUM_OUTPUTS,
++			  dev->component->outputs,
++			  BCM2835_ISP_NUM_CAPTURES + BCM2835_ISP_NUM_METADATA);
++		goto error;
++	}
++
++	atomic_set(&dev->num_streaming, 0);
++
++	for (i = 0; i < BCM2835_ISP_NUM_NODES; i++) {
++		struct bcm2835_isp_node *node = &dev->node[i];
++
++		ret = register_node(dev, node, i);
++		if (ret)
++			goto error;
++	}
++
++	ret = media_controller_register(dev);
++	if (ret)
++		goto error;
++
++	platform_set_drvdata(pdev, dev);
++	v4l2_info(&dev->v4l2_dev, "Loaded V4L2 %s\n", BCM2835_ISP_NAME);
++	return 0;
++
++error:
++	bcm2835_isp_remove(pdev);
++
++	return ret;
++}
++
++static struct platform_driver bcm2835_isp_pdrv = {
++	.probe = bcm2835_isp_probe,
++	.remove = bcm2835_isp_remove,
++	.driver = {
++			.name = BCM2835_ISP_NAME,
++		  },
++};
++
++module_platform_driver(bcm2835_isp_pdrv);
++
++MODULE_DESCRIPTION("BCM2835 ISP driver");
++MODULE_AUTHOR("Naushir Patuck <naush@raspberrypi.com>");
++MODULE_LICENSE("GPL");
++MODULE_VERSION("1.0");
++MODULE_ALIAS("platform:bcm2835-isp");
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
+@@ -113,6 +113,10 @@
+  */
+ #define MMAL_ENCODING_EGL_IMAGE        MMAL_FOURCC('E', 'G', 'L', 'I')
+ 
++/** ISP image statistics format
++ */
++#define MMAL_ENCODING_BRCM_STATS       MMAL_FOURCC('S', 'T', 'A', 'T')
++
+ /* }@ */
+ 
+ /** \name Pre-defined audio encodings */
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -221,6 +221,62 @@ enum mmal_parameter_camera_type {
+ 	MMAL_PARAMETER_SHUTTER_SPEED,
+ 		/**< Takes a @ref MMAL_PARAMETER_AWB_GAINS_T */
+ 	MMAL_PARAMETER_CUSTOM_AWB_GAINS,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_SETTINGS_T */
++	MMAL_PARAMETER_CAMERA_SETTINGS,
++		/**< Takes a @ref MMAL_PARAMETER_PRIVACY_INDICATOR_T */
++	MMAL_PARAMETER_PRIVACY_INDICATOR,
++		/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_DENOISE,
++		/**< Takes a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_STILLS_DENOISE,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_ANNOTATE_T */
++	MMAL_PARAMETER_ANNOTATE,
++		/**< Takes a @ref MMAL_PARAMETER_STEREOSCOPIC_MODE_T */
++	MMAL_PARAMETER_STEREOSCOPIC_MODE,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_INTERFACE_T */
++	MMAL_PARAMETER_CAMERA_INTERFACE,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_CLOCKING_MODE_T */
++	MMAL_PARAMETER_CAMERA_CLOCKING_MODE,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_RX_CONFIG_T */
++	MMAL_PARAMETER_CAMERA_RX_CONFIG,
++		/**< Takes a @ref MMAL_PARAMETER_CAMERA_RX_TIMING_T */
++	MMAL_PARAMETER_CAMERA_RX_TIMING,
++		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_DPF_CONFIG,
++
++	/* 0x50 */
++		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_JPEG_RESTART_INTERVAL,
++		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_CAMERA_ISP_BLOCK_OVERRIDE,
++		/**< Takes a @ref MMAL_PARAMETER_LENS_SHADING_T */
++	MMAL_PARAMETER_LENS_SHADING_OVERRIDE,
++		/**< Takes a @ref MMAL_PARAMETER_UINT32_T */
++	MMAL_PARAMETER_BLACK_LEVEL,
++		/**< Takes a @ref MMAL_PARAMETER_RESIZE_T */
++	MMAL_PARAMETER_RESIZE_PARAMS,
++		/**< Takes a @ref MMAL_PARAMETER_CROP_T */
++	MMAL_PARAMETER_CROP,
++		/**< Takes a @ref MMAL_PARAMETER_INT32_T */
++	MMAL_PARAMETER_OUTPUT_SHIFT,
++		/**< Takes a @ref MMAL_PARAMETER_INT32_T */
++	MMAL_PARAMETER_CCM_SHIFT,
++		/**< Takes a @ref MMAL_PARAMETER_CUSTOM_CCM_T */
++	MMAL_PARAMETER_CUSTOM_CCM,
++		/**< Takes a @ref MMAL_PARAMETER_RATIONAL_T */
++	MMAL_PARAMETER_ANALOG_GAIN,
++		/**< Takes a @ref MMAL_PARAMETER_RATIONAL_T */
++	MMAL_PARAMETER_DIGITAL_GAIN,
++		/**< Takes a @ref MMAL_PARAMETER_DENOISE_T */
++	MMAL_PARAMETER_DENOISE,
++		/**< Takes a @ref MMAL_PARAMETER_SHARPEN_T */
++	MMAL_PARAMETER_SHARPEN,
++		/**< Takes a @ref MMAL_PARAMETER_GEQ_T */
++	MMAL_PARAMETER_GEQ,
++		/**< Tales a @ref MMAP_PARAMETER_DPC_T */
++	MMAL_PARAMETER_DPC,
++		/**< Tales a @ref MMAP_PARAMETER_GAMMA_T */
++	MMAL_PARAMETER_GAMMA,
+ };
+ 
+ struct mmal_parameter_rational {
+@@ -786,7 +842,102 @@ struct mmal_parameter_camera_info {
+ 	struct mmal_parameter_camera_info_camera
+ 		cameras[MMAL_PARAMETER_CAMERA_INFO_MAX_CAMERAS];
+ 	struct mmal_parameter_camera_info_flash
+-				flashes[MMAL_PARAMETER_CAMERA_INFO_MAX_FLASHES];
++		flashes[MMAL_PARAMETER_CAMERA_INFO_MAX_FLASHES];
++};
++
++struct mmal_parameter_ccm {
++	struct mmal_parameter_rational ccm[3][3];
++	s32 offsets[3];
++};
++
++struct mmal_parameter_custom_ccm {
++	u32 enabled; /**< Enable the custom CCM. */
++	struct mmal_parameter_ccm ccm; /**< CCM to be used. */
++};
++
++struct mmal_parameter_lens_shading {
++	u32 enabled;
++	u32 grid_cell_size;
++	u32 grid_width;
++	u32 grid_stride;
++	u32 grid_height;
++	u32 mem_handle_table;
++	u32 ref_transform;
++};
++
++enum mmal_parameter_ls_gain_format_type {
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U0P8_1 = 0,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U1P7_0 = 1,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U1P7_1 = 2,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U2P6_0 = 3,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U2P6_1 = 4,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U3P5_0 = 5,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U3P5_1 = 6,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_U4P10  = 7,
++	MMAL_PARAMETER_LS_GAIN_FORMAT_TYPE_DUMMY  = 0x7FFFFFFF
++};
++
++struct mmal_parameter_lens_shading_v2 {
++	u32 enabled;
++	u32 grid_cell_size;
++	u32 grid_width;
++	u32 grid_stride;
++	u32 grid_height;
++	u32 mem_handle_table;
++	u32 ref_transform;
++	u32 corner_sampled;
++	enum mmal_parameter_ls_gain_format_type gain_format;
++};
++
++struct mmal_parameter_black_level {
++	u32 enabled;
++	u16 black_level_r;
++	u16 black_level_g;
++	u16 black_level_b;
++	u8 pad_[2]; /* Unused */
++};
++
++struct mmal_parameter_geq {
++	u32 enabled;
++	u32 offset;
++	struct mmal_parameter_rational slope;
++};
++
++#define MMAL_NUM_GAMMA_PTS 33
++struct mmal_parameter_gamma {
++	u32 enabled;
++	u16 x[MMAL_NUM_GAMMA_PTS];
++	u16 y[MMAL_NUM_GAMMA_PTS];
++};
++
++struct mmal_parameter_denoise {
++	u32 enabled;
++	u32 constant;
++	struct mmal_parameter_rational slope;
++	struct mmal_parameter_rational strength;
++};
++
++struct mmal_parameter_sharpen {
++	u32 enabled;
++	struct mmal_parameter_rational threshold;
++	struct mmal_parameter_rational strength;
++	struct mmal_parameter_rational limit;
++};
++
++enum mmal_dpc_mode {
++	MMAL_DPC_MODE_OFF = 0,
++	MMAL_DPC_MODE_NORMAL = 1,
++	MMAL_DPC_MODE_STRONG = 2,
++	MMAL_DPC_MODE_MAX = 0x7FFFFFFF,
++};
++
++struct mmal_parameter_dpc {
++	u32 enabled;
++	u32 strength;
++};
++
++struct mmal_parameter_crop {
++	struct vchiq_mmal_rect rect;
+ };
+ 
+ #endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0346-drm-vc4-A-present-but-empty-dmas-disables-audio.patch b/target/linux/bcm27xx/patches-5.10/950-0346-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
new file mode 100644
index 0000000000..9e32fc4b4c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0346-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
@@ -0,0 +1,33 @@
+From 4de61df3c777ea6265d03be98b315c8644003ceb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 31 Jul 2019 17:36:34 +0100
+Subject: [PATCH] drm/vc4: A present but empty dmas disables audio
+
+Overlays are unable to remove properties in the base DTB, but they
+can overwrite them. Allow a present but empty 'dmas' property
+to also disable the HDMI audio interface.
+
+See: https://github.com/raspberrypi/linux/issues/2489
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1330,10 +1330,12 @@ static int vc4_hdmi_audio_init(struct vc
+ 	const __be32 *addr;
+ 	int index;
+ 	int ret;
++	int len;
+ 
+-	if (!of_find_property(dev->of_node, "dmas", NULL)) {
++	if (!of_find_property(dev->of_node, "dmas", &len) ||
++	    len == 0) {
+ 		dev_warn(dev,
+-			 "'dmas' DT property is missing, no HDMI audio\n");
++			 "'dmas' DT property is missing or empty, no HDMI audio\n");
+ 		return 0;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0347-drm-vc4-Add-debugfs-node-that-dumps-the-current-disp.patch b/target/linux/bcm27xx/patches-5.10/950-0347-drm-vc4-Add-debugfs-node-that-dumps-the-current-disp.patch
new file mode 100644
index 0000000000..1e38c54492
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0347-drm-vc4-Add-debugfs-node-that-dumps-the-current-disp.patch
@@ -0,0 +1,70 @@
+From 09157702811f9e2144a769aef1f2269306fe86bb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 6 Oct 2020 18:44:42 +0100
+Subject: [PATCH] drm/vc4: Add debugfs node that dumps the current
+ display lists
+
+This allows easy analysis of display lists when debugging.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hvs.c | 41 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hvs.c
++++ b/drivers/gpu/drm/vc4/vc4_hvs.c
+@@ -95,6 +95,45 @@ static int vc4_hvs_debugfs_underrun(stru
+ 	return 0;
+ }
+ 
++static int vc4_hvs_debugfs_dlist(struct seq_file *m, void *data)
++{
++	struct drm_info_node *node = m->private;
++	struct drm_device *dev = node->minor->dev;
++	struct vc4_dev *vc4 = to_vc4_dev(dev);
++	struct drm_printer p = drm_seq_file_printer(m);
++	unsigned int next_entry_start = 0;
++	unsigned int i, j;
++	u32 dlist_word, dispstat;
++
++	for (i = 0; i < SCALER_CHANNELS_COUNT; i++) {
++		dispstat = VC4_GET_FIELD(HVS_READ(SCALER_DISPSTATX(i)),
++					 SCALER_DISPSTATX_MODE);
++		if (dispstat == SCALER_DISPSTATX_MODE_DISABLED ||
++		    dispstat == SCALER_DISPSTATX_MODE_EOF) {
++			drm_printf(&p, "HVS chan %u disabled\n", i);
++			continue;
++		}
++
++		drm_printf(&p, "HVS chan %u:\n", i);
++
++		for (j = HVS_READ(SCALER_DISPLISTX(i)); j < 256; j++) {
++			dlist_word = readl((u32 __iomem *)vc4->hvs->dlist + j);
++			drm_printf(&p, "dlist: %02d: 0x%08x\n", j,
++				   dlist_word);
++			if (!next_entry_start ||
++			    next_entry_start == j) {
++				if (dlist_word & SCALER_CTL0_END)
++					break;
++				next_entry_start = j +
++					VC4_GET_FIELD(dlist_word,
++						      SCALER_CTL0_SIZE);
++			}
++		}
++	}
++
++	return 0;
++}
++
+ /* The filter kernel is composed of dwords each containing 3 9-bit
+  * signed integers packed next to each other.
+  */
+@@ -671,6 +710,8 @@ static int vc4_hvs_bind(struct device *d
+ 	vc4_debugfs_add_regset32(drm, "hvs_regs", &hvs->regset);
+ 	vc4_debugfs_add_file(drm, "hvs_underrun", vc4_hvs_debugfs_underrun,
+ 			     NULL);
++	vc4_debugfs_add_file(drm, "hvs_dlists", vc4_hvs_debugfs_dlist,
++			     NULL);
+ 
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0348-gpio-Add-gpio-fsm-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0348-gpio-Add-gpio-fsm-driver.patch
new file mode 100644
index 0000000000..9d2e2f87c6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0348-gpio-Add-gpio-fsm-driver.patch
@@ -0,0 +1,1182 @@
+From 69f26eddc66378e33866cb30fc36309cd1d71b4a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 30 Sep 2020 12:00:54 +0100
+Subject: [PATCH] gpio: Add gpio-fsm driver
+
+The gpio-fsm driver implements simple state machines that allow GPIOs
+to be controlled in response to inputs from other GPIOs - real and
+soft/virtual - and time delays. It can:
++ create dummy GPIOs for drivers that demand them,
++ drive multiple GPIOs from a single input, with optional delays,
++ add a debounce circuit to an input,
++ drive pattern sequences onto LEDs
+etc.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/Kconfig                |    9 +
+ drivers/gpio/Makefile               |    1 +
+ drivers/gpio/gpio-fsm.c             | 1103 +++++++++++++++++++++++++++
+ include/dt-bindings/gpio/gpio-fsm.h |   21 +
+ 4 files changed, 1134 insertions(+)
+ create mode 100644 drivers/gpio/gpio-fsm.c
+ create mode 100644 include/dt-bindings/gpio/gpio-fsm.h
+
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -1164,6 +1164,15 @@ config HTC_EGPIO
+ 	  several HTC phones.  It provides basic support for input
+ 	  pins, output pins, and irqs.
+ 
++config GPIO_FSM
++	tristate "GPIO FSM support"
++	help
++	  The GPIO FSM driver allows the creation of state machines for
++	  manipulating GPIOs (both real and virtual), with state transitions
++	  triggered by GPIO edges or delays.
++
++	  If unsure, say N.
++
+ config GPIO_JANZ_TTL
+ 	tristate "Janz VMOD-TTL Digital IO Module"
+ 	depends on MFD_JANZ_CMODIO
+--- a/drivers/gpio/Makefile
++++ b/drivers/gpio/Makefile
+@@ -60,6 +60,7 @@ obj-$(CONFIG_GPIO_EP93XX)		+= gpio-ep93x
+ obj-$(CONFIG_GPIO_EXAR)			+= gpio-exar.o
+ obj-$(CONFIG_GPIO_F7188X)		+= gpio-f7188x.o
+ obj-$(CONFIG_GPIO_FTGPIO010)		+= gpio-ftgpio010.o
++obj-$(CONFIG_GPIO_FSM)			+= gpio-fsm.o
+ obj-$(CONFIG_GPIO_GE_FPGA)		+= gpio-ge.o
+ obj-$(CONFIG_GPIO_GPIO_MM)		+= gpio-gpio-mm.o
+ obj-$(CONFIG_GPIO_GRGPIO)		+= gpio-grgpio.o
+--- /dev/null
++++ b/drivers/gpio/gpio-fsm.c
+@@ -0,0 +1,1103 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ *  GPIO FSM driver
++ *
++ *  This driver implements simple state machines that allow real GPIOs to be
++ *  controlled in response to inputs from other GPIOs - real and soft/virtual -
++ *  and time delays. It can:
++ *  + create dummy GPIOs for drivers that demand them
++ *  + drive multiple GPIOs from a single input,  with optional delays
++ *  + add a debounce circuit to an input
++ *  + drive pattern sequences onto LEDs
++ *  etc.
++ *
++ *  Copyright (C) 2020 Raspberry Pi (Trading) Ltd.
++ */
++
++#include <linux/err.h>
++#include <linux/gpio.h>
++#include <linux/gpio/driver.h>
++#include <linux/interrupt.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <dt-bindings/gpio/gpio-fsm.h>
++
++#define MODULE_NAME "gpio-fsm"
++
++#define GF_IO_TYPE(x) ((u32)(x) & 0xffff)
++#define GF_IO_INDEX(x) ((u32)(x) >> 16)
++
++enum {
++	SIGNAL_GPIO,
++	SIGNAL_SOFT
++};
++
++enum {
++	INPUT_GPIO,
++	INPUT_SOFT
++};
++
++enum {
++	SYM_UNDEFINED,
++	SYM_NAME,
++	SYM_SET,
++	SYM_START,
++	SYM_SHUTDOWN,
++
++	SYM_MAX
++};
++
++struct soft_gpio {
++	int dir;
++	int value;
++};
++
++struct input_gpio_state {
++	struct gpio_fsm *gf;
++	struct gpio_desc  *desc;
++	struct fsm_state *target;
++	int index;
++	int value;
++	int irq;
++	bool enabled;
++	bool active_low;
++};
++
++struct gpio_event {
++	int index;
++	int value;
++	struct fsm_state *target;
++};
++
++struct symtab_entry {
++	const char *name;
++	void *value;
++	struct symtab_entry *next;
++};
++
++struct output_signal {
++	u8 type;
++	u8 value;
++	u16 index;
++};
++
++struct fsm_state {
++	const char *name;
++	struct output_signal *signals;
++	struct gpio_event *gpio_events;
++	struct gpio_event *soft_events;
++	struct fsm_state *delay_target;
++	struct fsm_state *shutdown_target;
++	unsigned int num_signals;
++	unsigned int num_gpio_events;
++	unsigned int num_soft_events;
++	unsigned int delay_ms;
++	unsigned int shutdown_ms;
++};
++
++struct gpio_fsm {
++	struct gpio_chip gc;
++	struct device *dev;
++	spinlock_t spinlock;
++	struct work_struct work;
++	struct timer_list timer;
++	wait_queue_head_t shutdown_event;
++	struct fsm_state *states;
++	struct input_gpio_state *input_gpio_states;
++	struct gpio_descs *input_gpios;
++	struct gpio_descs *output_gpios;
++	struct soft_gpio *soft_gpios;
++	struct fsm_state *start_state;
++	struct fsm_state *shutdown_state;
++	unsigned int num_states;
++	unsigned int num_output_gpios;
++	unsigned int num_input_gpios;
++	unsigned int num_soft_gpios;
++	unsigned int shutdown_timeout_ms;
++	unsigned int shutdown_jiffies;
++
++	struct fsm_state *current_state;
++	struct fsm_state *next_state;
++	struct fsm_state *delay_target_state;
++	int delay_ms;
++	unsigned int debug;
++	bool shutting_down;
++	struct symtab_entry *symtab;
++};
++
++static struct symtab_entry *do_add_symbol(struct symtab_entry **symtab,
++					  const char *name, void *value)
++{
++	struct symtab_entry **p = symtab;
++
++	while (*p && strcmp((*p)->name, name))
++		p = &(*p)->next;
++
++	if (*p) {
++		/* This is an existing symbol */
++		if ((*p)->value) {
++			/* Already defined */
++			if (value) {
++				if ((uintptr_t)value < SYM_MAX)
++					return ERR_PTR(-EINVAL);
++				else
++					return ERR_PTR(-EEXIST);
++			}
++		} else {
++			/* Undefined */
++			(*p)->value = value;
++		}
++	} else {
++		/* This is a new symbol */
++		*p = kmalloc(sizeof(struct symtab_entry), GFP_KERNEL);
++		if (*p) {
++			(*p)->name = name;
++			(*p)->value = value;
++			(*p)->next = NULL;
++		}
++	}
++	return *p;
++}
++
++static int add_symbol(struct symtab_entry **symtab,
++		      const char *name, void *value)
++{
++	struct symtab_entry *sym = do_add_symbol(symtab, name, value);
++
++	return PTR_ERR_OR_ZERO(sym);
++}
++
++static struct symtab_entry *get_symbol(struct symtab_entry **symtab,
++				       const char *name)
++{
++	struct symtab_entry *sym = do_add_symbol(symtab, name, NULL);
++
++	if (IS_ERR(sym))
++		return NULL;
++	return sym;
++}
++
++static void free_symbols(struct symtab_entry **symtab)
++{
++	struct symtab_entry *sym = *symtab;
++	void *p;
++
++	*symtab = NULL;
++	while (sym) {
++		p = sym;
++		sym = sym->next;
++		kfree(p);
++	}
++}
++
++static int gpio_fsm_get_direction(struct gpio_chip *gc, unsigned int off)
++{
++	struct gpio_fsm *gf = gpiochip_get_data(gc);
++	struct soft_gpio *sg;
++
++	if (off >= gf->num_soft_gpios)
++		return -EINVAL;
++	sg = &gf->soft_gpios[off];
++
++	return sg->dir;
++}
++
++static int gpio_fsm_get(struct gpio_chip *gc, unsigned int off)
++{
++	struct gpio_fsm *gf = gpiochip_get_data(gc);
++	struct soft_gpio *sg;
++
++	if (off >= gf->num_soft_gpios)
++		return -EINVAL;
++	sg = &gf->soft_gpios[off];
++
++	return sg->value;
++}
++
++static void gpio_fsm_go_to_state(struct gpio_fsm *gf,
++				   struct fsm_state *new_state)
++{
++	struct input_gpio_state *inp_state;
++	struct gpio_event *gp_ev;
++	struct fsm_state *state;
++	int i;
++
++	dev_dbg(gf->dev, "go_to_state(%s)\n",
++		  new_state ? new_state->name : "<unset>");
++
++	spin_lock(&gf->spinlock);
++
++	if (gf->next_state) {
++		/* Something else has already requested a transition */
++		spin_unlock(&gf->spinlock);
++		return;
++	}
++
++	gf->next_state = new_state;
++	state = gf->current_state;
++	gf->delay_target_state = NULL;
++
++	if (state) {
++		/* Disarm any GPIO IRQs */
++		for (i = 0; i < state->num_gpio_events; i++) {
++			gp_ev = &state->gpio_events[i];
++			inp_state = &gf->input_gpio_states[gp_ev->index];
++			inp_state->target = NULL;
++		}
++	}
++
++	spin_unlock(&gf->spinlock);
++
++	if (new_state)
++		schedule_work(&gf->work);
++}
++
++static void gpio_fsm_set_soft(struct gpio_fsm *gf,
++				unsigned int off, int val)
++{
++	struct soft_gpio *sg = &gf->soft_gpios[off];
++	struct gpio_event *gp_ev;
++	struct fsm_state *state;
++	int i;
++
++	dev_dbg(gf->dev, "set(%d,%d)\n", off, val);
++	state = gf->current_state;
++	sg->value = val;
++	for (i = 0; i < state->num_soft_events; i++) {
++		gp_ev = &state->soft_events[i];
++		if (gp_ev->index == off && gp_ev->value == val) {
++			if (gf->debug)
++				dev_info(gf->dev,
++					 "GF_SOFT %d->%d -> %s\n", gp_ev->index,
++					 gp_ev->value, gp_ev->target->name);
++			gpio_fsm_go_to_state(gf, gp_ev->target);
++			break;
++		}
++	}
++}
++
++static int gpio_fsm_direction_input(struct gpio_chip *gc, unsigned int off)
++{
++	struct gpio_fsm *gf = gpiochip_get_data(gc);
++	struct soft_gpio *sg;
++
++	if (off >= gf->num_soft_gpios)
++		return -EINVAL;
++	sg = &gf->soft_gpios[off];
++	sg->dir = GPIOF_DIR_IN;
++
++	return 0;
++}
++
++static int gpio_fsm_direction_output(struct gpio_chip *gc, unsigned int off,
++				       int value)
++{
++	struct gpio_fsm *gf = gpiochip_get_data(gc);
++	struct soft_gpio *sg;
++
++	if (off >= gf->num_soft_gpios)
++		return -EINVAL;
++	sg = &gf->soft_gpios[off];
++	sg->dir = GPIOF_DIR_OUT;
++	gpio_fsm_set_soft(gf, off, value);
++
++	return 0;
++}
++
++static void gpio_fsm_set(struct gpio_chip *gc, unsigned int off, int val)
++{
++	struct gpio_fsm *gf;
++
++	gf = gpiochip_get_data(gc);
++	if (off < gf->num_soft_gpios)
++		gpio_fsm_set_soft(gf, off, val);
++}
++
++static void gpio_fsm_enter_state(struct gpio_fsm *gf,
++				   struct fsm_state *state)
++{
++	struct input_gpio_state *inp_state;
++	struct output_signal *signal;
++	struct gpio_event *event;
++	struct gpio_desc *gpiod;
++	struct soft_gpio *soft;
++	int value;
++	int i;
++
++	dev_dbg(gf->dev, "enter_state(%s)\n", state->name);
++
++	gf->current_state = state;
++
++	// 1. Apply any listed signals
++	for (i = 0; i < state->num_signals; i++) {
++		signal = &state->signals[i];
++
++		if (gf->debug)
++			dev_info(gf->dev, "  set %s %d->%d\n",
++				 (signal->type == SIGNAL_GPIO) ? "GF_OUT" :
++				 "GF_SOFT",
++				 signal->index, signal->value);
++		switch (signal->type) {
++		case SIGNAL_GPIO:
++			gpiod = gf->output_gpios->desc[signal->index];
++			gpiod_set_value_cansleep(gpiod, signal->value);
++			break;
++		case SIGNAL_SOFT:
++			soft = &gf->soft_gpios[signal->index];
++			gpio_fsm_set_soft(gf, signal->index, signal->value);
++			break;
++		}
++	}
++
++	// 2. Exit if successfully reached shutdown state
++	if (gf->shutting_down && state == state->shutdown_target) {
++		wake_up(&gf->shutdown_event);
++		return;
++	}
++
++	// 3. Schedule a timer callback if shutting down
++	if (state->shutdown_target) {
++		// Remember the absolute shutdown time in case remove is called
++		// at a later time.
++		gf->shutdown_jiffies =
++			jiffies + msecs_to_jiffies(state->shutdown_ms);
++
++		if (gf->shutting_down) {
++			gf->delay_target_state = state->shutdown_target;
++			gf->delay_ms = state->shutdown_ms;
++			mod_timer(&gf->timer, gf->shutdown_jiffies);
++		}
++	}
++
++	// During shutdown, skip everything else
++	if (gf->shutting_down)
++		return;
++
++	// Otherwise record what the shutdown time would be
++	gf->shutdown_jiffies = jiffies + msecs_to_jiffies(state->shutdown_ms);
++
++	// 4. Check soft inputs for transitions to take
++	for (i = 0; i < state->num_soft_events; i++) {
++		event = &state->soft_events[i];
++		if (gf->soft_gpios[event->index].value == event->value) {
++			if (gf->debug)
++				dev_info(gf->dev,
++					 "GF_SOFT %d=%d -> %s\n", event->index,
++					 event->value, event->target->name);
++			gpio_fsm_go_to_state(gf, event->target);
++			return;
++		}
++	}
++
++	// 5. Check GPIOs for transitions to take, enabling the IRQs
++	for (i = 0; i < state->num_gpio_events; i++) {
++		event = &state->gpio_events[i];
++		inp_state = &gf->input_gpio_states[event->index];
++		inp_state->target = event->target;
++		inp_state->value = event->value;
++		inp_state->enabled = true;
++
++		value = gpiod_get_value(gf->input_gpios->desc[event->index]);
++
++		// Clear stale event state
++		disable_irq(inp_state->irq);
++
++		irq_set_irq_type(inp_state->irq,
++				 (inp_state->value ^ inp_state->active_low) ?
++				 IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING);
++		enable_irq(inp_state->irq);
++
++		if (value == event->value && inp_state->target) {
++			if (gf->debug)
++				dev_info(gf->dev,
++					 "GF_IN %d=%d -> %s\n", event->index,
++					 event->value, event->target->name);
++			gpio_fsm_go_to_state(gf, event->target);
++			return;
++		}
++	}
++
++	// 6. Schedule a timer callback if delay_target
++	if (state->delay_target) {
++		gf->delay_target_state = state->delay_target;
++		gf->delay_ms = state->delay_ms;
++		mod_timer(&gf->timer,
++			  jiffies + msecs_to_jiffies(state->delay_ms));
++	}
++}
++
++static void gpio_fsm_work(struct work_struct *work)
++{
++	struct input_gpio_state *inp_state;
++	struct fsm_state *new_state;
++	struct fsm_state *state;
++	struct gpio_event *gp_ev;
++	struct gpio_fsm *gf;
++	int i;
++
++	gf = container_of(work, struct gpio_fsm, work);
++	spin_lock(&gf->spinlock);
++	state = gf->current_state;
++	new_state = gf->next_state;
++	if (!new_state)
++		new_state = gf->delay_target_state;
++	gf->next_state = NULL;
++	gf->delay_target_state = NULL;
++	spin_unlock(&gf->spinlock);
++
++	if (state) {
++		/* Disable any enabled GPIO IRQs */
++		for (i = 0; i < state->num_gpio_events; i++) {
++			gp_ev = &state->gpio_events[i];
++			inp_state = &gf->input_gpio_states[gp_ev->index];
++			if (inp_state->enabled) {
++				inp_state->enabled = false;
++				irq_set_irq_type(inp_state->irq,
++						 IRQF_TRIGGER_NONE);
++			}
++		}
++	}
++
++	if (new_state)
++		gpio_fsm_enter_state(gf, new_state);
++}
++
++static irqreturn_t gpio_fsm_gpio_irq_handler(int irq, void *dev_id)
++{
++	struct input_gpio_state *inp_state = dev_id;
++	struct gpio_fsm *gf = inp_state->gf;
++	struct fsm_state *target;
++
++	target = inp_state->target;
++	if (!target)
++		return IRQ_NONE;
++
++	/* If the IRQ has fired then the desired state _must_ have occurred */
++	inp_state->enabled = false;
++	irq_set_irq_type(inp_state->irq, IRQF_TRIGGER_NONE);
++	if (gf->debug)
++		dev_info(gf->dev, "GF_IN %d->%d -> %s\n",
++			 inp_state->index, inp_state->value, target->name);
++	gpio_fsm_go_to_state(gf, target);
++	return IRQ_HANDLED;
++}
++
++static void gpio_fsm_timer(struct timer_list *timer)
++{
++	struct gpio_fsm *gf = container_of(timer, struct gpio_fsm, timer);
++	struct fsm_state *target;
++
++	target = gf->delay_target_state;
++	if (!target)
++		return;
++
++	if (gf->debug)
++		dev_info(gf->dev, "GF_DELAY %d -> %s\n", gf->delay_ms,
++			 target->name);
++
++	gpio_fsm_go_to_state(gf, target);
++}
++
++int gpio_fsm_parse_signals(struct gpio_fsm *gf, struct fsm_state *state,
++			     struct property *prop)
++{
++	const __be32 *cells = prop->value;
++	struct output_signal *signal;
++	u32 io;
++	u32 type;
++	u32 index;
++	u32 value;
++	int ret = 0;
++	int i;
++
++	if (prop->length % 8) {
++		dev_err(gf->dev, "malformed set in state %s\n",
++			state->name);
++		return -EINVAL;
++	}
++
++	state->num_signals = prop->length/8;
++	state->signals = devm_kcalloc(gf->dev, state->num_signals,
++				      sizeof(struct output_signal),
++				      GFP_KERNEL);
++	for (i = 0; i < state->num_signals; i++) {
++		signal = &state->signals[i];
++		io = be32_to_cpu(cells[0]);
++		type = GF_IO_TYPE(io);
++		index = GF_IO_INDEX(io);
++		value = be32_to_cpu(cells[1]);
++
++		if (type != GF_OUT && type != GF_SOFT) {
++			dev_err(gf->dev,
++				"invalid set type %d in state %s\n",
++				type, state->name);
++			ret = -EINVAL;
++			break;
++		}
++		if (type == GF_OUT && index >= gf->num_output_gpios) {
++			dev_err(gf->dev,
++				"invalid GF_OUT number %d in state %s\n",
++				index, state->name);
++			ret = -EINVAL;
++			break;
++		}
++		if (type == GF_SOFT && index >= gf->num_soft_gpios) {
++			dev_err(gf->dev,
++				"invalid GF_SOFT number %d in state %s\n",
++				index, state->name);
++			ret = -EINVAL;
++			break;
++		}
++		if (value != 0 && value != 1) {
++			dev_err(gf->dev,
++				"invalid set value %d in state %s\n",
++				value, state->name);
++			ret = -EINVAL;
++			break;
++		}
++		signal->type = (type == GF_OUT) ? SIGNAL_GPIO : SIGNAL_SOFT;
++		signal->index = index;
++		signal->value = value;
++		cells += 2;
++	}
++
++	return ret;
++}
++
++struct gpio_event *new_event(struct gpio_event **events, int *num_events)
++{
++	int num = ++(*num_events);
++	*events = krealloc(*events, num * sizeof(struct gpio_event),
++			   GFP_KERNEL);
++	return *events ? *events + (num - 1) : NULL;
++}
++
++int gpio_fsm_parse_events(struct gpio_fsm *gf, struct fsm_state *state,
++			    struct property *prop)
++{
++	const __be32 *cells = prop->value;
++	struct symtab_entry *sym;
++	int num_cells;
++	int ret = 0;
++	int i;
++
++	if (prop->length % 8) {
++		dev_err(gf->dev,
++			"malformed transitions from state %s to state %s\n",
++			state->name, prop->name);
++		return -EINVAL;
++	}
++
++	sym = get_symbol(&gf->symtab, prop->name);
++	num_cells = prop->length / 4;
++	i = 0;
++	while (i < num_cells) {
++		struct gpio_event *gp_ev;
++		u32 event, param;
++		u32 index;
++
++		event = be32_to_cpu(cells[i++]);
++		param = be32_to_cpu(cells[i++]);
++		index = GF_IO_INDEX(event);
++
++		switch (GF_IO_TYPE(event)) {
++		case GF_IN:
++			if (index >= gf->num_input_gpios) {
++				dev_err(gf->dev,
++					"invalid GF_IN %d in transitions from state %s to state %s\n",
++					index, state->name, prop->name);
++				return -EINVAL;
++			}
++			if (param > 1) {
++				dev_err(gf->dev,
++					"invalid GF_IN value %d in transitions from state %s to state %s\n",
++					param, state->name, prop->name);
++				return -EINVAL;
++			}
++			gp_ev = new_event(&state->gpio_events,
++					  &state->num_gpio_events);
++			if (!gp_ev)
++				return -ENOMEM;
++			gp_ev->index = index;
++			gp_ev->value = param;
++			gp_ev->target = (struct fsm_state *)sym;
++			break;
++
++		case GF_SOFT:
++			if (index >= gf->num_soft_gpios) {
++				dev_err(gf->dev,
++					"invalid GF_SOFT %d in transitions from state %s to state %s\n",
++					index, state->name, prop->name);
++				return -EINVAL;
++			}
++			if (param > 1) {
++				dev_err(gf->dev,
++					"invalid GF_SOFT value %d in transitions from state %s to state %s\n",
++					param, state->name, prop->name);
++				return -EINVAL;
++			}
++			gp_ev = new_event(&state->soft_events,
++					  &state->num_soft_events);
++			if (!gp_ev)
++				return -ENOMEM;
++			gp_ev->index = index;
++			gp_ev->value = param;
++			gp_ev->target = (struct fsm_state *)sym;
++			break;
++
++		case GF_DELAY:
++			if (state->delay_target) {
++				dev_err(gf->dev,
++					"state %s has multiple GF_DELAYs\n",
++					state->name);
++				return -EINVAL;
++			}
++			state->delay_target = (struct fsm_state *)sym;
++			state->delay_ms = param;
++			break;
++
++		case GF_SHUTDOWN:
++			if (state->shutdown_target == state) {
++				dev_err(gf->dev,
++					"shutdown state %s has GF_SHUTDOWN\n",
++					state->name);
++				return -EINVAL;
++			} else if (state->shutdown_target) {
++				dev_err(gf->dev,
++					"state %s has multiple GF_SHUTDOWNs\n",
++					state->name);
++				return -EINVAL;
++			}
++			state->shutdown_target =
++				(struct fsm_state *)sym;
++			state->shutdown_ms = param;
++			break;
++
++		default:
++			dev_err(gf->dev,
++				"invalid event %08x in transitions from state %s to state %s\n",
++				event, state->name, prop->name);
++			return -EINVAL;
++		}
++	}
++	if (i != num_cells) {
++		dev_err(gf->dev,
++			"malformed transitions from state %s to state %s\n",
++			state->name, prop->name);
++		return -EINVAL;
++	}
++
++	return ret;
++}
++
++int gpio_fsm_parse_state(struct gpio_fsm *gf,
++			   struct fsm_state *state,
++			   struct device_node *np)
++{
++	struct symtab_entry *sym;
++	struct property *prop;
++	int ret;
++
++	state->name = np->name;
++	ret = add_symbol(&gf->symtab, np->name, state);
++	if (ret) {
++		switch (ret) {
++		case -EINVAL:
++			dev_err(gf->dev, "'%s' is not a valid state name\n",
++				np->name);
++			break;
++		case -EEXIST:
++			dev_err(gf->dev, "state %s already defined\n",
++				np->name);
++			break;
++		default:
++			dev_err(gf->dev, "error %d adding state %s symbol\n",
++				ret, np->name);
++			break;
++		}
++		return ret;
++	}
++
++	for_each_property_of_node(np, prop) {
++		sym = get_symbol(&gf->symtab, prop->name);
++		if (!sym) {
++			ret = -ENOMEM;
++			break;
++		}
++
++		switch ((uintptr_t)sym->value) {
++		case SYM_SET:
++			ret = gpio_fsm_parse_signals(gf, state, prop);
++			break;
++		case SYM_START:
++			if (gf->start_state) {
++				dev_err(gf->dev, "multiple start states\n");
++				ret = -EINVAL;
++			} else {
++				gf->start_state = state;
++			}
++			break;
++		case SYM_SHUTDOWN:
++			state->shutdown_target = state;
++			gf->shutdown_state = state;
++			break;
++		case SYM_NAME:
++			/* Ignore */
++			break;
++		default:
++			/* A set of transition events to this state */
++			ret = gpio_fsm_parse_events(gf, state, prop);
++			break;
++		}
++	}
++
++	return ret;
++}
++
++static void dump_all(struct gpio_fsm *gf)
++{
++	int i, j;
++
++	dev_info(gf->dev, "Input GPIOs:\n");
++	for (i = 0; i < gf->num_input_gpios; i++)
++		dev_info(gf->dev, "  %d: %p\n", i,
++			 gf->input_gpios->desc[i]);
++
++	dev_info(gf->dev, "Output GPIOs:\n");
++	for (i = 0; i < gf->num_output_gpios; i++)
++		dev_info(gf->dev, "  %d: %p\n", i,
++			 gf->output_gpios->desc[i]);
++
++	dev_info(gf->dev, "Soft GPIOs:\n");
++	for (i = 0; i < gf->num_soft_gpios; i++)
++		dev_info(gf->dev, "  %d: %s %d\n", i,
++			 (gf->soft_gpios[i].dir == GPIOF_DIR_IN) ? "IN" : "OUT",
++			 gf->soft_gpios[i].value);
++
++	dev_info(gf->dev, "Start state: %s\n",
++		 gf->start_state ? gf->start_state->name : "-");
++
++	dev_info(gf->dev, "Shutdown timeout: %d ms\n",
++		 gf->shutdown_timeout_ms);
++
++	for (i = 0; i < gf->num_states; i++) {
++		struct fsm_state *state = &gf->states[i];
++
++		dev_info(gf->dev, "State %s:\n", state->name);
++
++		if (state->shutdown_target == state)
++			dev_info(gf->dev, "  Shutdown state\n");
++
++		dev_info(gf->dev, "  Signals:\n");
++		for (j = 0; j < state->num_signals; j++) {
++			struct output_signal *signal = &state->signals[j];
++
++			dev_info(gf->dev, "    %d: %s %d=%d\n", j,
++				 (signal->type == SIGNAL_GPIO) ? "GPIO" :
++								 "SOFT",
++				 signal->index, signal->value);
++		}
++
++		dev_info(gf->dev, "  GPIO events:\n");
++		for (j = 0; j < state->num_gpio_events; j++) {
++			struct gpio_event *event = &state->gpio_events[j];
++
++			dev_info(gf->dev, "    %d: %d=%d -> %s\n", j,
++				 event->index, event->value,
++				 event->target->name);
++		}
++
++		dev_info(gf->dev, "  Soft events:\n");
++		for (j = 0; j < state->num_soft_events; j++) {
++			struct gpio_event *event = &state->soft_events[j];
++
++			dev_info(gf->dev, "    %d: %d=%d -> %s\n", j,
++				 event->index, event->value,
++				 event->target->name);
++		}
++
++		if (state->delay_target)
++			dev_info(gf->dev, "  Delay: %d ms -> %s\n",
++				 state->delay_ms, state->delay_target->name);
++
++		if (state->shutdown_target && state->shutdown_target != state)
++			dev_info(gf->dev, "  Shutdown: %d ms -> %s\n",
++				 state->shutdown_ms,
++				 state->shutdown_target->name);
++	}
++	dev_info(gf->dev, "\n");
++}
++
++static int resolve_sym_to_state(struct gpio_fsm *gf, struct fsm_state **pstate)
++{
++	struct symtab_entry *sym = (struct symtab_entry *)*pstate;
++
++	if (!sym)
++		return -ENOMEM;
++
++	*pstate = sym->value;
++
++	if (!*pstate) {
++		dev_err(gf->dev, "state %s not defined\n",
++			sym->name);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static int gpio_fsm_probe(struct platform_device *pdev)
++{
++	struct input_gpio_state *inp_state;
++	struct device *dev = &pdev->dev;
++	struct device_node *np = dev->of_node;
++	struct device_node *cp;
++	struct gpio_fsm *gf;
++	u32 debug = 0;
++	int num_states;
++	u32 num_soft_gpios;
++	int ret;
++	int i;
++	static const char *const reserved_symbols[] = {
++		[SYM_NAME] = "name",
++		[SYM_SET] = "set",
++		[SYM_START] = "start_state",
++		[SYM_SHUTDOWN] = "shutdown_state",
++	};
++
++	if (of_property_read_u32(np, "num-soft-gpios", &num_soft_gpios)) {
++		dev_err(dev, "missing 'num-soft-gpios' property\n");
++		return -EINVAL;
++	}
++
++	of_property_read_u32(np, "debug", &debug);
++
++	gf = devm_kzalloc(dev, sizeof(*gf), GFP_KERNEL);
++	if (!gf)
++		return -ENOMEM;
++
++	gf->dev = dev;
++	gf->debug = debug;
++
++	if (of_property_read_u32(np, "shutdown-timeout-ms",
++				 &gf->shutdown_timeout_ms))
++		gf->shutdown_timeout_ms = 5000;
++
++	gf->num_soft_gpios = num_soft_gpios;
++	gf->soft_gpios = devm_kcalloc(dev, num_soft_gpios,
++				      sizeof(struct soft_gpio), GFP_KERNEL);
++	if (!gf->soft_gpios)
++		return -ENOMEM;
++	for (i = 0; i < num_soft_gpios; i++) {
++		struct soft_gpio *sg = &gf->soft_gpios[i];
++
++		sg->dir = GPIOF_DIR_IN;
++		sg->value = 0;
++	}
++
++	gf->input_gpios = devm_gpiod_get_array_optional(dev, "input", GPIOD_IN);
++	if (IS_ERR(gf->input_gpios)) {
++		ret = PTR_ERR(gf->input_gpios);
++		dev_err(dev, "failed to get input gpios from DT - %d\n", ret);
++		return ret;
++	}
++	gf->num_input_gpios = (gf->input_gpios ? gf->input_gpios->ndescs : 0);
++
++	gf->input_gpio_states = devm_kcalloc(dev, gf->num_input_gpios,
++					     sizeof(struct input_gpio_state),
++					     GFP_KERNEL);
++	if (!gf->input_gpio_states)
++		return -ENOMEM;
++	for (i = 0; i < gf->num_input_gpios; i++) {
++		inp_state = &gf->input_gpio_states[i];
++		inp_state->desc = gf->input_gpios->desc[i];
++		inp_state->gf = gf;
++		inp_state->index = i;
++		inp_state->irq = gpiod_to_irq(inp_state->desc);
++		inp_state->active_low = gpiod_is_active_low(inp_state->desc);
++		if (inp_state->irq >= 0)
++			ret = devm_request_irq(gf->dev, inp_state->irq,
++					       gpio_fsm_gpio_irq_handler,
++					       IRQF_TRIGGER_NONE,
++					       dev_name(dev),
++					       inp_state);
++		else
++			ret = inp_state->irq;
++
++		if (ret) {
++			dev_err(dev,
++				"failed to get IRQ for input gpio - %d\n",
++				ret);
++			return ret;
++		}
++	}
++
++	gf->output_gpios = devm_gpiod_get_array_optional(dev, "output",
++							 GPIOD_OUT_LOW);
++	if (IS_ERR(gf->output_gpios)) {
++		ret = PTR_ERR(gf->output_gpios);
++		dev_err(dev, "failed to get output gpios from DT - %d\n", ret);
++		return ret;
++	}
++	gf->num_output_gpios = (gf->output_gpios ? gf->output_gpios->ndescs :
++				0);
++
++	num_states = of_get_child_count(np);
++	if (!num_states) {
++		dev_err(dev, "no states declared\n");
++		return -EINVAL;
++	}
++	gf->states = devm_kcalloc(dev, num_states,
++				  sizeof(struct fsm_state), GFP_KERNEL);
++	if (!gf->states)
++		return -ENOMEM;
++
++	// add reserved words to the symbol table
++	for (i = 0; i < ARRAY_SIZE(reserved_symbols); i++) {
++		if (reserved_symbols[i])
++			add_symbol(&gf->symtab, reserved_symbols[i], (void *)i);
++	}
++
++	// parse the state
++	for_each_child_of_node(np, cp) {
++		struct fsm_state *state = &gf->states[gf->num_states];
++
++		ret = gpio_fsm_parse_state(gf, state, cp);
++		if (ret)
++			return ret;
++		gf->num_states++;
++	}
++
++	if (!gf->start_state) {
++		dev_err(gf->dev, "no start state defined\n");
++		return -EINVAL;
++	}
++
++	// resolve symbol pointers into state pointers
++	for (i = 0; !ret && i < gf->num_states; i++) {
++		struct fsm_state *state = &gf->states[i];
++		int j;
++
++		for (j = 0; !ret && j < state->num_gpio_events; j++) {
++			struct gpio_event *ev = &state->gpio_events[j];
++
++			ret = resolve_sym_to_state(gf, &ev->target);
++		}
++
++		for (j = 0; !ret && j < state->num_soft_events; j++) {
++			struct gpio_event *ev = &state->soft_events[j];
++
++			ret = resolve_sym_to_state(gf, &ev->target);
++		}
++
++		if (!ret) {
++			resolve_sym_to_state(gf, &state->delay_target);
++			if (state->shutdown_target != state)
++				resolve_sym_to_state(gf,
++						     &state->shutdown_target);
++		}
++	}
++
++	if (!ret && gf->debug > 1)
++		dump_all(gf);
++
++	free_symbols(&gf->symtab);
++
++	if (ret)
++		return ret;
++
++	gf->gc.parent = dev;
++	gf->gc.label = np->name;
++	gf->gc.owner = THIS_MODULE;
++	gf->gc.of_node = np;
++	gf->gc.base = -1;
++	gf->gc.ngpio = num_soft_gpios;
++
++	gf->gc.get_direction = gpio_fsm_get_direction;
++	gf->gc.direction_input = gpio_fsm_direction_input;
++	gf->gc.direction_output = gpio_fsm_direction_output;
++	gf->gc.get = gpio_fsm_get;
++	gf->gc.set = gpio_fsm_set;
++	gf->gc.can_sleep = true;
++	spin_lock_init(&gf->spinlock);
++	INIT_WORK(&gf->work, gpio_fsm_work);
++	timer_setup(&gf->timer, gpio_fsm_timer, 0);
++	init_waitqueue_head(&gf->shutdown_event);
++
++	platform_set_drvdata(pdev, gf);
++
++	if (gf->debug)
++		dev_info(gf->dev, "Start -> %s\n", gf->start_state->name);
++
++	gpio_fsm_go_to_state(gf, gf->start_state);
++
++	return devm_gpiochip_add_data(dev, &gf->gc, gf);
++}
++
++static int gpio_fsm_remove(struct platform_device *pdev)
++{
++	struct gpio_fsm *gf = platform_get_drvdata(pdev);
++	int i;
++
++	if (gf->shutdown_state) {
++		if (gf->debug)
++			dev_info(gf->dev, "Shutting down...\n");
++
++		spin_lock(&gf->spinlock);
++		gf->shutting_down = true;
++		if (gf->current_state->shutdown_target &&
++		    gf->current_state->shutdown_target != gf->current_state) {
++			gf->delay_target_state =
++				gf->current_state->shutdown_target;
++			mod_timer(&gf->timer, gf->shutdown_jiffies);
++		}
++		spin_unlock(&gf->spinlock);
++
++		wait_event_timeout(gf->shutdown_event,
++				   gf->current_state->shutdown_target ==
++				   gf->current_state,
++				   msecs_to_jiffies(gf->shutdown_timeout_ms));
++		if (gf->current_state->shutdown_target == gf->current_state)
++			gpio_fsm_enter_state(gf, gf->shutdown_state);
++	}
++	cancel_work_sync(&gf->work);
++	del_timer_sync(&gf->timer);
++
++	/* Events aren't allocated from managed storage */
++	for (i = 0; i < gf->num_states; i++) {
++		kfree(gf->states[i].gpio_events);
++		kfree(gf->states[i].soft_events);
++	}
++	if (gf->debug)
++		dev_info(gf->dev, "Exiting\n");
++
++	return 0;
++}
++
++static void gpio_fsm_shutdown(struct platform_device *pdev)
++{
++	gpio_fsm_remove(pdev);
++}
++
++static const struct of_device_id gpio_fsm_ids[] = {
++	{ .compatible = "rpi,gpio-fsm" },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, gpio_fsm_ids);
++
++static struct platform_driver gpio_fsm_driver = {
++	.driver	= {
++		.name		= MODULE_NAME,
++		.of_match_table	= of_match_ptr(gpio_fsm_ids),
++	},
++	.probe = gpio_fsm_probe,
++	.remove = gpio_fsm_remove,
++	.shutdown = gpio_fsm_shutdown,
++};
++module_platform_driver(gpio_fsm_driver);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>");
++MODULE_DESCRIPTION("GPIO FSM driver");
++MODULE_ALIAS("platform:gpio-fsm");
+--- /dev/null
++++ b/include/dt-bindings/gpio/gpio-fsm.h
+@@ -0,0 +1,21 @@
++/* SPDX-License-Identifier: GPL-2.0+ */
++/*
++ * This header provides constants for binding rpi,gpio-fsm.
++ */
++
++#ifndef _DT_BINDINGS_GPIO_FSM_H
++#define _DT_BINDINGS_GPIO_FSM_H
++
++#define GF_IN       0
++#define GF_OUT      1
++#define GF_SOFT     2
++#define GF_DELAY    3
++#define GF_SHUTDOWN 4
++
++#define GF_IO(t, v) (((v) << 16) | ((t) & 0xffff))
++
++#define GF_IP(x)    GF_IO(GF_IN, (x))
++#define GF_OP(x)    GF_IO(GF_OUT, (x))
++#define GF_SW(x)    GF_IO(GF_SOFT, (x))
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0349-drm-vc4-Add-all-the-HDMI-registers-into-the-debugfs-.patch b/target/linux/bcm27xx/patches-5.10/950-0349-drm-vc4-Add-all-the-HDMI-registers-into-the-debugfs-.patch
new file mode 100644
index 0000000000..ecbefd2546
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0349-drm-vc4-Add-all-the-HDMI-registers-into-the-debugfs-.patch
@@ -0,0 +1,97 @@
+From ef65a6f064b3bd497d83b0f40908182ba2a2b863 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 21 Oct 2020 18:34:56 +0100
+Subject: [PATCH] drm/vc4: Add all the HDMI registers into the debugfs
+ dumps
+
+The vc5 HDMI registers hadn't been added into the debugfs
+register sets, therefore weren't dumped on request.
+Add them in.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 44 ++++++++++++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  9 +++++++
+ 2 files changed, 53 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -91,6 +91,12 @@ static int vc4_hdmi_debugfs_regs(struct
+ 
+ 	drm_print_regset32(&p, &vc4_hdmi->hdmi_regset);
+ 	drm_print_regset32(&p, &vc4_hdmi->hd_regset);
++	drm_print_regset32(&p, &vc4_hdmi->cec_regset);
++	drm_print_regset32(&p, &vc4_hdmi->csc_regset);
++	drm_print_regset32(&p, &vc4_hdmi->dvp_regset);
++	drm_print_regset32(&p, &vc4_hdmi->phy_regset);
++	drm_print_regset32(&p, &vc4_hdmi->ram_regset);
++	drm_print_regset32(&p, &vc4_hdmi->rm_regset);
+ 
+ 	return 0;
+ }
+@@ -1731,6 +1737,7 @@ static int vc5_hdmi_init_resources(struc
+ 	struct platform_device *pdev = vc4_hdmi->pdev;
+ 	struct device *dev = &pdev->dev;
+ 	struct resource *res;
++	int ret;
+ 
+ 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi");
+ 	if (!res)
+@@ -1821,6 +1828,38 @@ static int vc5_hdmi_init_resources(struc
+ 		return PTR_ERR(vc4_hdmi->reset);
+ 	}
+ 
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hdmi_regset, VC4_HDMI);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->hd_regset, VC4_HD);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->cec_regset, VC5_CEC);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->csc_regset, VC5_CSC);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->dvp_regset, VC5_DVP);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->phy_regset, VC5_PHY);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->ram_regset, VC5_RAM);
++	if (ret)
++		return ret;
++
++	ret = vc4_hdmi_build_regset(vc4_hdmi, &vc4_hdmi->rm_regset, VC5_RM);
++	if (ret)
++		return ret;
++
+ 	return 0;
+ }
+ 
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -161,8 +161,16 @@ struct vc4_hdmi {
+ 
+ 	struct reset_control *reset;
+ 
++	/* Common debugfs regset */
+ 	struct debugfs_regset32 hdmi_regset;
+ 	struct debugfs_regset32 hd_regset;
++	/* VC5 debugfs regset */
++	struct debugfs_regset32 cec_regset;
++	struct debugfs_regset32 csc_regset;
++	struct debugfs_regset32 dvp_regset;
++	struct debugfs_regset32 phy_regset;
++	struct debugfs_regset32 ram_regset;
++	struct debugfs_regset32 rm_regset;
+ };
+ 
+ static inline struct vc4_hdmi *
diff --git a/target/linux/bcm27xx/patches-5.10/950-0350-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch b/target/linux/bcm27xx/patches-5.10/950-0350-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch
new file mode 100644
index 0000000000..0dce47a417
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0350-ARM-dts-bcm271x-Use-a53-pmu-drop-RPI364.patch
@@ -0,0 +1,67 @@
+From 97a2cff029c6c8f7f2550935e6110b81c69bc34a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 19 Mar 2020 10:04:46 +0000
+Subject: [PATCH] ARM: dts: bcm271x: Use a53 pmu, drop RPI364
+
+The upstream bcm2837.dtsi uses cortex-a53-pmu, so we can do the same
+but with a fallback to the cortex-a7-pmu which is supported by the
+32-bit kernel.
+
+Now that we're using the natural fallback mechanism of compatible
+strings, the RPI364 macro no longer serves any purpose - remove it.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2710.dtsi                        | 6 +-----
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts      | 2 --
+ arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts      | 2 --
+ 6 files changed, 1 insertion(+), 15 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2710.dtsi
++++ b/arch/arm/boot/dts/bcm2710.dtsi
+@@ -5,11 +5,7 @@
+ 	compatible = "brcm,bcm2837", "brcm,bcm2836";
+ 
+ 	arm-pmu {
+-#ifdef RPI364
+-		compatible = "arm,armv8-pmuv3", "arm,cortex-a7-pmu";
+-#else
+-		compatible = "arm,cortex-a7-pmu";
+-#endif
++		compatible = "arm,cortex-a53-pmu", "arm,cortex-a7-pmu";
+ 	};
+ 
+ 	soc {
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-2-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-2-b.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b-plus.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-3-b-plus.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-3-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-3-b.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-cm3.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2710-rpi-cm3.dts"
+--- a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts
+@@ -1,3 +1 @@
+-#define RPI364
+-
+ #include "../../../../arm/boot/dts/bcm2711-rpi-4-b.dts"
diff --git a/target/linux/bcm27xx/patches-5.10/950-0351-overlays-Add-option-to-disable-composite-to-vc4-kms-.patch b/target/linux/bcm27xx/patches-5.10/950-0351-overlays-Add-option-to-disable-composite-to-vc4-kms-.patch
new file mode 100644
index 0000000000..dae08fe9e3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0351-overlays-Add-option-to-disable-composite-to-vc4-kms-.patch
@@ -0,0 +1,36 @@
+From 8c4205446ace4f14ec8725d11f46b570e9bc1fd3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 23 Oct 2020 14:15:41 +0100
+Subject: [PATCH] overlays: Add option to disable composite to
+ vc4-kms-v3d
+
+Composite gets enabled automatically if HDMI isn't detected,
+which can cause some grief in X should it be not connected
+and touchscreens are in use.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README                  | 2 ++
+ arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 1 +
+ 2 files changed, 3 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2949,6 +2949,8 @@ Params: cma-512                 CMA is 5
+         cma-default             Use upstream's default value
+         audio                   Enable or disable audio over HDMI (default "on")
+         noaudio                 Disable all HDMI audio (default "off")
++        nocomposite             Disable the composite video output (default
++                                "off")
+ 
+ 
+ Name:   vc4-kms-v3d-pi4
+--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+@@ -118,5 +118,6 @@
+ 	__overrides__ {
+ 		audio   = <0>,"!13", <0>,"=14";
+ 		noaudio = <0>,"=13", <0>,"!14";
++		nocomposite = <0>, "!11";
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0352-overlays-imx219-Correct-link-frequency-to-match-the-.patch b/target/linux/bcm27xx/patches-5.10/950-0352-overlays-imx219-Correct-link-frequency-to-match-the-.patch
new file mode 100644
index 0000000000..de77b9dfb0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0352-overlays-imx219-Correct-link-frequency-to-match-the-.patch
@@ -0,0 +1,25 @@
+From 7ba47043d428bce18161417f134ca6492d097744 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 11 Mar 2020 12:07:57 +0000
+Subject: [PATCH] overlays: imx219: Correct link frequency to match the
+ upstream driver
+
+The upstream driver is checking the link frequency parameter, and
+the overlay had the wrong value.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/imx219-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/imx219-overlay.dts
++++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
+@@ -36,7 +36,7 @@
+ 						data-lanes = <1 2>;
+ 						clock-noncontinuous;
+ 						link-frequencies =
+-							/bits/ 64 <297000000>;
++							/bits/ 64 <456000000>;
+ 					};
+ 				};
+ 			};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0353-dts-Add-CM4-to-arm64-dt-files.patch b/target/linux/bcm27xx/patches-5.10/950-0353-dts-Add-CM4-to-arm64-dt-files.patch
new file mode 100644
index 0000000000..706154b55a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0353-dts-Add-CM4-to-arm64-dt-files.patch
@@ -0,0 +1,28 @@
+From aa9f4bd2a82bc227bc5d11939ad3cacb7a2663e6 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 23 Oct 2020 15:45:11 +0100
+Subject: [PATCH] dts: Add CM4 to arm64 dt files
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm64/boot/dts/broadcom/Makefile            | 3 ++-
+ arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4.dts | 1 +
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4.dts
+
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -7,7 +7,8 @@ dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rp
+ dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
+-dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb \
++			      bcm2711-rpi-cm4.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
+ dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-cm3.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-cm4.dts
+@@ -0,0 +1 @@
++#include "../../../../arm/boot/dts/bcm2711-rpi-cm4.dts"
diff --git a/target/linux/bcm27xx/patches-5.10/950-0354-drm-vc4-Add-the-2711-HVS-as-a-suitable-DMA-node.patch b/target/linux/bcm27xx/patches-5.10/950-0354-drm-vc4-Add-the-2711-HVS-as-a-suitable-DMA-node.patch
new file mode 100644
index 0000000000..dbef01b24f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0354-drm-vc4-Add-the-2711-HVS-as-a-suitable-DMA-node.patch
@@ -0,0 +1,24 @@
+From 2b8894c7231f02a03e13c1785ed706471d511f8d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 26 Oct 2020 12:38:27 +0000
+Subject: [PATCH] drm/vc4: Add the 2711 HVS as a suitable DMA node
+
+With vc4-drv node not being under /soc on Pi4, we need to
+adopt the correct DMA parameters from a suitable sub-component.
+Add "brcm,bcm2711-hvs" to that list of components.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -248,6 +248,7 @@ static void vc4_match_add_drivers(struct
+ 
+ const struct of_device_id vc4_dma_range_matches[] = {
+ 	{ .compatible = "brcm,bcm2835-hvs" },
++	{ .compatible = "brcm,bcm2711-hvs" },
+ 	{ .compatible = "raspberrypi,rpi-firmware-kms" },
+ 	{ .compatible = "brcm,bcm2835-v3d" },
+ 	{ .compatible = "brcm,cygnus-v3d" },
diff --git a/target/linux/bcm27xx/patches-5.10/950-0355-xhci-quirks-add-link-TRB-quirk-for-VL805.patch b/target/linux/bcm27xx/patches-5.10/950-0355-xhci-quirks-add-link-TRB-quirk-for-VL805.patch
new file mode 100644
index 0000000000..1e1b9a9510
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0355-xhci-quirks-add-link-TRB-quirk-for-VL805.patch
@@ -0,0 +1,61 @@
+From be6ae78e28ff92b6da6af988f3013420af957481 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Mon, 26 Oct 2020 14:03:35 +0000
+Subject: [PATCH] xhci: quirks: add link TRB quirk for VL805
+
+The VL805 controller can't cope with the TR Dequeue Pointer for an endpoint
+being set to a Link TRB. The hardware-maintained endpoint context ends up
+stuck at the address of the Link TRB, leading to erroneous ring expansion
+events whenever the enqueue pointer wraps to the dequeue position.
+
+If the search for the end of the current TD and ring cycle state lands on
+a Link TRB, move to the next segment.
+
+See: https://github.com/raspberrypi/linux/issues/3919
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ drivers/usb/host/xhci-pci.c  |  1 +
+ drivers/usb/host/xhci-ring.c | 10 ++++++++++
+ drivers/usb/host/xhci.h      |  1 +
+ 3 files changed, 12 insertions(+)
+
+--- a/drivers/usb/host/xhci-pci.c
++++ b/drivers/usb/host/xhci-pci.c
+@@ -277,6 +277,7 @@ static void xhci_pci_quirks(struct devic
+ 	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
+ 		xhci->quirks |= XHCI_LPM_SUPPORT;
+ 		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
++		xhci->quirks |= XHCI_AVOID_DQ_ON_LINK;
+ 	}
+ 
+ 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -653,6 +653,16 @@ void xhci_find_new_dequeue_state(struct
+ 
+ 	} while (!cycle_found || !td_last_trb_found);
+ 
++	/*
++	 * Quirk: the xHC does not correctly parse link TRBs if the HW Dequeue
++	 * pointer is set to one. Advance to the next TRB (and next segment).
++	 */
++	if (xhci->quirks & XHCI_AVOID_DQ_ON_LINK && trb_is_link(new_deq)) {
++		if (link_trb_toggles_cycle(new_deq))
++			state->new_cycle_state ^= 0x1;
++		next_trb(xhci, ep_ring, &new_seg, &new_deq);
++	}
++
+ 	state->new_deq_seg = new_seg;
+ 	state->new_deq_ptr = new_deq;
+ 
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -1882,6 +1882,7 @@ struct xhci_hcd {
+ #define XHCI_SG_TRB_CACHE_SIZE_QUIRK	BIT_ULL(39)
+ #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
+ #define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(41)
++#define XHCI_AVOID_DQ_ON_LINK	BIT_ULL(42)
+ 
+ 	unsigned int		num_active_eps;
+ 	unsigned int		limit_active_eps;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0356-dts-Tidy-the-Raspberry-Pi-Makefile-entries.patch b/target/linux/bcm27xx/patches-5.10/950-0356-dts-Tidy-the-Raspberry-Pi-Makefile-entries.patch
new file mode 100644
index 0000000000..c8e659d42c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0356-dts-Tidy-the-Raspberry-Pi-Makefile-entries.patch
@@ -0,0 +1,43 @@
+From 8364d0445bde9900c7ef8e6f6d4ba2642dca0807 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Oct 2020 15:01:21 +0000
+Subject: [PATCH] dts: Tidy the Raspberry Pi Makefile entries
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/Makefile            | 2 +-
+ arch/arm64/boot/dts/broadcom/Makefile | 7 ++-----
+ 2 files changed, 3 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -10,8 +10,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2709-rpi-2-b.dtb \
+ 	bcm2710-rpi-2-b.dtb \
+ 	bcm2710-rpi-3-b.dtb \
+-	bcm2711-rpi-4-b.dtb \
+ 	bcm2710-rpi-3-b-plus.dtb \
++	bcm2711-rpi-4-b.dtb \
+ 	bcm2710-rpi-cm3.dtb \
+ 	bcm2711-rpi-cm4.dtb
+ 
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -3,15 +3,12 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rp
+ 			      bcm2837-rpi-3-b.dtb \
+ 			      bcm2837-rpi-3-b-plus.dtb \
+ 			      bcm2837-rpi-cm3-io3.dtb
+-dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-2-b.dtb
+-dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
+-dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb \
+-			      bcm2711-rpi-cm4.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
+-dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-cm3.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-cm4.dtb
+ 
+ subdir-y	+= northstar2
+ subdir-y	+= stingray
diff --git a/target/linux/bcm27xx/patches-5.10/950-0357-staging-bcm2835-audio-Add-disable-headphones-flag.patch b/target/linux/bcm27xx/patches-5.10/950-0357-staging-bcm2835-audio-Add-disable-headphones-flag.patch
new file mode 100644
index 0000000000..317d5626cc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0357-staging-bcm2835-audio-Add-disable-headphones-flag.patch
@@ -0,0 +1,34 @@
+From 833b2341a6db499638d404de283a1b3c3a2a225f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Oct 2020 10:23:22 +0000
+Subject: [PATCH] staging: bcm2835-audio: Add disable-headphones flag
+
+Add a property to allow the headphone output to be disabled. Use an
+integer property rather than a boolean so that an overlay can clear it.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -381,11 +381,16 @@ static int snd_bcm2835_alsa_probe(struct
+ 	}
+ 
+ 	if (!enable_compat_alsa) {
++		// In this mode, enable analog output by default
++		u32 disable_headphones = 0;
++
+ 		if (!of_property_read_bool(dev->of_node, "brcm,disable-hdmi"))
+ 			set_hdmi_enables(dev);
+ 
+-		// In this mode, always enable analog output
+-		enable_headphones = true;
++		of_property_read_u32(dev->of_node,
++				     "brcm,disable-headphones",
++				     &disable_headphones);
++		enable_headphones = !disable_headphones;
+ 	} else {
+ 		enable_hdmi0 = enable_hdmi;
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0358-ARM-dts-Disable-headphone-audio-on-Zeroes-CM4.patch b/target/linux/bcm27xx/patches-5.10/950-0358-ARM-dts-Disable-headphone-audio-on-Zeroes-CM4.patch
new file mode 100644
index 0000000000..e7801c1bed
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0358-ARM-dts-Disable-headphone-audio-on-Zeroes-CM4.patch
@@ -0,0 +1,42 @@
+From 895b2a5d3578ff5b91be41eb099280e2c63cb25c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Oct 2020 10:18:50 +0000
+Subject: [PATCH] ARM: dts: Disable headphone audio on Zeroes, CM4
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2708-rpi-zero-w.dts | 1 +
+ arch/arm/boot/dts/bcm2708-rpi-zero.dts   | 1 +
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts    | 1 +
+ 3 files changed, 3 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+@@ -152,6 +152,7 @@
+ &audio {
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&audio_pins>;
++	brcm,disable-headphones = <1>;
+ };
+ 
+ / {
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+@@ -106,6 +106,7 @@
+ &audio {
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&audio_pins>;
++	brcm,disable-headphones = <1>;
+ };
+ 
+ / {
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -574,6 +574,7 @@
+ &audio {
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&audio_pins>;
++	brcm,disable-headphones = <1>;
+ };
+ 
+ / {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0359-overlays-Enable-headphone-audio-in-audremap.patch b/target/linux/bcm27xx/patches-5.10/950-0359-overlays-Enable-headphone-audio-in-audremap.patch
new file mode 100644
index 0000000000..d0bd203852
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0359-overlays-Enable-headphone-audio-in-audremap.patch
@@ -0,0 +1,26 @@
+From b16e7c1d42fafe29a34e8e0449c2d94debb38dc4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Oct 2020 10:21:23 +0000
+Subject: [PATCH] overlays: Enable headphone audio in audremap
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/audremap-overlay.dts | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/audremap-overlay.dts
++++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
+@@ -26,6 +26,13 @@
+ 		};
+ 	};
+ 
++	fragment@3 {
++		target = <&audio>;
++		__overlay__  {
++			brcm,disable-headphones = <0>;
++		};
++	};
++
+ 	__overrides__ {
+ 		swap_lr = <&frag0>, "swap_lr?";
+ 		enable_jack = <&frag0>, "enable_jack?";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0360-rpisense-fb-Set-pseudo_pallete-to-prevent-crash-on-f.patch b/target/linux/bcm27xx/patches-5.10/950-0360-rpisense-fb-Set-pseudo_pallete-to-prevent-crash-on-f.patch
new file mode 100644
index 0000000000..ea9cce45ad
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0360-rpisense-fb-Set-pseudo_pallete-to-prevent-crash-on-f.patch
@@ -0,0 +1,30 @@
+From 5a8f4fcd60686ac1f8e86e79ecbda81a4b9fef83 Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.com>
+Date: Mon, 26 Oct 2020 16:38:21 +0000
+Subject: [PATCH] rpisense-fb: Set pseudo_pallete to prevent crash on
+ fbcon takeover
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.com>
+---
+ drivers/video/fbdev/rpisense-fb.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/video/fbdev/rpisense-fb.c
++++ b/drivers/video/fbdev/rpisense-fb.c
+@@ -52,6 +52,8 @@ static u8 gamma_low[32] = {0x00, 0x01, 0
+ 
+ static u8 gamma_user[32];
+ 
++static u32 pseudo_palette[16];
++
+ static struct rpisense_fb_param rpisense_fb_param = {
+ 	.vmem = NULL,
+ 	.vmemsize = 128,
+@@ -225,6 +227,7 @@ static int rpisense_fb_probe(struct plat
+ 	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_VIRTFB;
+ 	info->screen_base = rpisense_fb_param.vmem;
+ 	info->screen_size = rpisense_fb_param.vmemsize;
++	info->pseudo_palette = pseudo_palette;
+ 
+ 	if (lowlight)
+ 		rpisense_fb_param.gamma = gamma_low;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0361-ARM-dts-Expand-PCIe-space-on-BCM2711.patch b/target/linux/bcm27xx/patches-5.10/950-0361-ARM-dts-Expand-PCIe-space-on-BCM2711.patch
new file mode 100644
index 0000000000..a791013aa0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0361-ARM-dts-Expand-PCIe-space-on-BCM2711.patch
@@ -0,0 +1,30 @@
+From f78a15dcaf63a5ad478670fd1d52d85261e88f37 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Oct 2020 10:35:43 +0000
+Subject: [PATCH] ARM: dts: Expand PCIe space on BCM2711
+
+Attempts to connect external GPUs to Compute Module 4's PCIe bus have
+highlighted that the existing "outbound window" - the fraction of the
+PCI address base that is appears in the host's memory map - is
+restrictively small. Expand the window to a full 1GB.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=288902
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -503,8 +503,8 @@
+ 			msi-controller;
+ 			msi-parent = <&pcie0>;
+ 
+-			ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000
+-				  0x0 0x04000000>;
++			ranges = <0x02000000 0x0 0xc0000000 0x6 0x00000000
++				  0x0 0x40000000>;
+ 			/*
+ 			 * The wrapper around the PCIe block has a bug
+ 			 * preventing it from accessing beyond the first 3GB of
diff --git a/target/linux/bcm27xx/patches-5.10/950-0362-dwc_otg-Minimise-header-and-fix-build-warnings.patch b/target/linux/bcm27xx/patches-5.10/950-0362-dwc_otg-Minimise-header-and-fix-build-warnings.patch
new file mode 100644
index 0000000000..b075bf4c64
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0362-dwc_otg-Minimise-header-and-fix-build-warnings.patch
@@ -0,0 +1,887 @@
+From 649f8fd1bdd0eb3830ecc32a8e6905e6925952a1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Oct 2020 09:59:49 +0000
+Subject: [PATCH] dwc_otg: Minimise header and fix build warnings
+
+Delete a large amount of unused declaration from "usb.h", some of which
+were causing build warnings, and get the module building cleanly.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/usb/host/dwc_common_port/usb.h       | 664 -------------------
+ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c   |  10 +-
+ drivers/usb/host/dwc_otg/dwc_otg_hcd.c       |  23 +-
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c  |   3 +-
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c  |   8 +-
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c |   4 +-
+ drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c  |   2 +-
+ 7 files changed, 30 insertions(+), 684 deletions(-)
+
+--- a/drivers/usb/host/dwc_common_port/usb.h
++++ b/drivers/usb/host/dwc_common_port/usb.h
+@@ -55,12 +55,6 @@ typedef u_int8_t uByte;
+ typedef u_int8_t uWord[2];
+ typedef u_int8_t uDWord[4];
+ 
+-#define USETW2(w,h,l) ((w)[0] = (u_int8_t)(l), (w)[1] = (u_int8_t)(h))
+-#define UCONSTW(x)	{ (x) & 0xff, ((x) >> 8) & 0xff }
+-#define UCONSTDW(x)	{ (x) & 0xff, ((x) >> 8) & 0xff, \
+-			  ((x) >> 16) & 0xff, ((x) >> 24) & 0xff }
+-
+-#if 1
+ #define UGETW(w) ((w)[0] | ((w)[1] << 8))
+ #define USETW(w,v) ((w)[0] = (u_int8_t)(v), (w)[1] = (u_int8_t)((v) >> 8))
+ #define UGETDW(w) ((w)[0] | ((w)[1] << 8) | ((w)[2] << 16) | ((w)[3] << 24))
+@@ -68,31 +62,6 @@ typedef u_int8_t uDWord[4];
+ 		     (w)[1] = (u_int8_t)((v) >> 8), \
+ 		     (w)[2] = (u_int8_t)((v) >> 16), \
+ 		     (w)[3] = (u_int8_t)((v) >> 24))
+-#else
+-/*
+- * On little-endian machines that can handle unanliged accesses
+- * (e.g. i386) these macros can be replaced by the following.
+- */
+-#define UGETW(w) (*(u_int16_t *)(w))
+-#define USETW(w,v) (*(u_int16_t *)(w) = (v))
+-#define UGETDW(w) (*(u_int32_t *)(w))
+-#define USETDW(w,v) (*(u_int32_t *)(w) = (v))
+-#endif
+-
+-/*
+- * Macros for accessing UAS IU fields, which are big-endian
+- */
+-#define IUSETW2(w,h,l) ((w)[0] = (u_int8_t)(h), (w)[1] = (u_int8_t)(l))
+-#define IUCONSTW(x)	{ ((x) >> 8) & 0xff, (x) & 0xff }
+-#define IUCONSTDW(x)	{ ((x) >> 24) & 0xff, ((x) >> 16) & 0xff, \
+-			((x) >> 8) & 0xff, (x) & 0xff }
+-#define IUGETW(w) (((w)[0] << 8) | (w)[1])
+-#define IUSETW(w,v) ((w)[0] = (u_int8_t)((v) >> 8), (w)[1] = (u_int8_t)(v))
+-#define IUGETDW(w) (((w)[0] << 24) | ((w)[1] << 16) | ((w)[2] << 8) | (w)[3])
+-#define IUSETDW(w,v) ((w)[0] = (u_int8_t)((v) >> 24), \
+-		      (w)[1] = (u_int8_t)((v) >> 16), \
+-		      (w)[2] = (u_int8_t)((v) >> 8), \
+-		      (w)[3] = (u_int8_t)(v))
+ 
+ #define UPACKED __attribute__((__packed__))
+ 
+@@ -119,29 +88,6 @@ typedef struct {
+ #define UT_ENDPOINT		0x02
+ #define UT_OTHER		0x03
+ 
+-#define UT_READ_DEVICE		(UT_READ  | UT_STANDARD | UT_DEVICE)
+-#define UT_READ_INTERFACE	(UT_READ  | UT_STANDARD | UT_INTERFACE)
+-#define UT_READ_ENDPOINT	(UT_READ  | UT_STANDARD | UT_ENDPOINT)
+-#define UT_WRITE_DEVICE		(UT_WRITE | UT_STANDARD | UT_DEVICE)
+-#define UT_WRITE_INTERFACE	(UT_WRITE | UT_STANDARD | UT_INTERFACE)
+-#define UT_WRITE_ENDPOINT	(UT_WRITE | UT_STANDARD | UT_ENDPOINT)
+-#define UT_READ_CLASS_DEVICE	(UT_READ  | UT_CLASS | UT_DEVICE)
+-#define UT_READ_CLASS_INTERFACE	(UT_READ  | UT_CLASS | UT_INTERFACE)
+-#define UT_READ_CLASS_OTHER	(UT_READ  | UT_CLASS | UT_OTHER)
+-#define UT_READ_CLASS_ENDPOINT	(UT_READ  | UT_CLASS | UT_ENDPOINT)
+-#define UT_WRITE_CLASS_DEVICE	(UT_WRITE | UT_CLASS | UT_DEVICE)
+-#define UT_WRITE_CLASS_INTERFACE (UT_WRITE | UT_CLASS | UT_INTERFACE)
+-#define UT_WRITE_CLASS_OTHER	(UT_WRITE | UT_CLASS | UT_OTHER)
+-#define UT_WRITE_CLASS_ENDPOINT	(UT_WRITE | UT_CLASS | UT_ENDPOINT)
+-#define UT_READ_VENDOR_DEVICE	(UT_READ  | UT_VENDOR | UT_DEVICE)
+-#define UT_READ_VENDOR_INTERFACE (UT_READ  | UT_VENDOR | UT_INTERFACE)
+-#define UT_READ_VENDOR_OTHER	(UT_READ  | UT_VENDOR | UT_OTHER)
+-#define UT_READ_VENDOR_ENDPOINT	(UT_READ  | UT_VENDOR | UT_ENDPOINT)
+-#define UT_WRITE_VENDOR_DEVICE	(UT_WRITE | UT_VENDOR | UT_DEVICE)
+-#define UT_WRITE_VENDOR_INTERFACE (UT_WRITE | UT_VENDOR | UT_INTERFACE)
+-#define UT_WRITE_VENDOR_OTHER	(UT_WRITE | UT_VENDOR | UT_OTHER)
+-#define UT_WRITE_VENDOR_ENDPOINT (UT_WRITE | UT_VENDOR | UT_ENDPOINT)
+-
+ /* Requests */
+ #define UR_GET_STATUS		0x00
+ #define  USTAT_STANDARD_STATUS  0x00
+@@ -243,71 +189,6 @@ typedef struct {
+ typedef struct {
+ 	uByte		bLength;
+ 	uByte		bDescriptorType;
+-	uByte		bDescriptorSubtype;
+-} UPACKED usb_descriptor_t;
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-} UPACKED usb_descriptor_header_t;
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uWord		bcdUSB;
+-#define UD_USB_2_0		0x0200
+-#define UD_IS_USB2(d) (UGETW((d)->bcdUSB) >= UD_USB_2_0)
+-	uByte		bDeviceClass;
+-	uByte		bDeviceSubClass;
+-	uByte		bDeviceProtocol;
+-	uByte		bMaxPacketSize;
+-	/* The fields below are not part of the initial descriptor. */
+-	uWord		idVendor;
+-	uWord		idProduct;
+-	uWord		bcdDevice;
+-	uByte		iManufacturer;
+-	uByte		iProduct;
+-	uByte		iSerialNumber;
+-	uByte		bNumConfigurations;
+-} UPACKED usb_device_descriptor_t;
+-#define USB_DEVICE_DESCRIPTOR_SIZE 18
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uWord		wTotalLength;
+-	uByte		bNumInterface;
+-	uByte		bConfigurationValue;
+-	uByte		iConfiguration;
+-#define UC_ATT_ONE		(1 << 7)	/* must be set */
+-#define UC_ATT_SELFPOWER	(1 << 6)	/* self powered */
+-#define UC_ATT_WAKEUP		(1 << 5)	/* can wakeup */
+-#define UC_ATT_BATTERY		(1 << 4)	/* battery powered */
+-	uByte		bmAttributes;
+-#define UC_BUS_POWERED		0x80
+-#define UC_SELF_POWERED		0x40
+-#define UC_REMOTE_WAKEUP	0x20
+-	uByte		bMaxPower; /* max current in 2 mA units */
+-#define UC_POWER_FACTOR 2
+-} UPACKED usb_config_descriptor_t;
+-#define USB_CONFIG_DESCRIPTOR_SIZE 9
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uByte		bInterfaceNumber;
+-	uByte		bAlternateSetting;
+-	uByte		bNumEndpoints;
+-	uByte		bInterfaceClass;
+-	uByte		bInterfaceSubClass;
+-	uByte		bInterfaceProtocol;
+-	uByte		iInterface;
+-} UPACKED usb_interface_descriptor_t;
+-#define USB_INTERFACE_DESCRIPTOR_SIZE 9
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+ 	uByte		bEndpointAddress;
+ #define UE_GET_DIR(a)	((a) & 0x80)
+ #define UE_SET_DIR(a,d)	((a) | (((d)&1) << 7))
+@@ -332,27 +213,6 @@ typedef struct {
+ } UPACKED usb_endpoint_descriptor_t;
+ #define USB_ENDPOINT_DESCRIPTOR_SIZE 7
+ 
+-typedef struct ss_endpoint_companion_descriptor {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bMaxBurst;
+-#define USSE_GET_MAX_STREAMS(a)		((a) & 0x1f)
+-#define USSE_SET_MAX_STREAMS(a, b)	((a) | ((b) & 0x1f))
+-#define USSE_GET_MAX_PACKET_NUM(a)	((a) & 0x03)
+-#define USSE_SET_MAX_PACKET_NUM(a, b)	((a) | ((b) & 0x03))
+-	uByte bmAttributes;
+-	uWord wBytesPerInterval;
+-} UPACKED ss_endpoint_companion_descriptor_t;
+-#define USB_SS_ENDPOINT_COMPANION_DESCRIPTOR_SIZE 6
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uWord		bString[127];
+-} UPACKED usb_string_descriptor_t;
+-#define USB_MAX_STRING_LEN 128
+-#define USB_LANGUAGE_TABLE 0	/* # of the string language id table */
+-
+ /* Hub specific request */
+ #define UR_GET_BUS_STATE	0x02
+ #define UR_CLEAR_TT_BUFFER	0x08
+@@ -411,530 +271,6 @@ typedef struct {
+ } UPACKED usb_hub_descriptor_t;
+ #define USB_HUB_DESCRIPTOR_SIZE 9 /* includes deprecated PortPowerCtrlMask */
+ 
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uWord		bcdUSB;
+-	uByte		bDeviceClass;
+-	uByte		bDeviceSubClass;
+-	uByte		bDeviceProtocol;
+-	uByte		bMaxPacketSize0;
+-	uByte		bNumConfigurations;
+-	uByte		bReserved;
+-} UPACKED usb_device_qualifier_t;
+-#define USB_DEVICE_QUALIFIER_SIZE 10
+-
+-typedef struct {
+-	uByte		bLength;
+-	uByte		bDescriptorType;
+-	uByte		bmAttributes;
+-#define UOTG_SRP	0x01
+-#define UOTG_HNP	0x02
+-} UPACKED usb_otg_descriptor_t;
+-
+-/* OTG feature selectors */
+-#define UOTG_B_HNP_ENABLE	3
+-#define UOTG_A_HNP_SUPPORT	4
+-#define UOTG_A_ALT_HNP_SUPPORT	5
+-
+-typedef struct {
+-	uWord		wStatus;
+-/* Device status flags */
+-#define UDS_SELF_POWERED		0x0001
+-#define UDS_REMOTE_WAKEUP		0x0002
+-/* Endpoint status flags */
+-#define UES_HALT			0x0001
+-} UPACKED usb_status_t;
+-
+-typedef struct {
+-	uWord		wHubStatus;
+-#define UHS_LOCAL_POWER			0x0001
+-#define UHS_OVER_CURRENT		0x0002
+-	uWord		wHubChange;
+-} UPACKED usb_hub_status_t;
+-
+-typedef struct {
+-	uWord		wPortStatus;
+-#define UPS_CURRENT_CONNECT_STATUS	0x0001
+-#define UPS_PORT_ENABLED		0x0002
+-#define UPS_SUSPEND			0x0004
+-#define UPS_OVERCURRENT_INDICATOR	0x0008
+-#define UPS_RESET			0x0010
+-#define UPS_PORT_POWER			0x0100
+-#define UPS_LOW_SPEED			0x0200
+-#define UPS_HIGH_SPEED			0x0400
+-#define UPS_PORT_TEST			0x0800
+-#define UPS_PORT_INDICATOR		0x1000
+-	uWord		wPortChange;
+-#define UPS_C_CONNECT_STATUS		0x0001
+-#define UPS_C_PORT_ENABLED		0x0002
+-#define UPS_C_SUSPEND			0x0004
+-#define UPS_C_OVERCURRENT_INDICATOR	0x0008
+-#define UPS_C_PORT_RESET		0x0010
+-} UPACKED usb_port_status_t;
+-
+-#ifdef _MSC_VER
+-#include <poppack.h>
+-#endif
+-
+-/* Device class codes */
+-#define UDCLASS_IN_INTERFACE	0x00
+-#define UDCLASS_COMM		0x02
+-#define UDCLASS_HUB		0x09
+-#define  UDSUBCLASS_HUB		0x00
+-#define  UDPROTO_FSHUB		0x00
+-#define  UDPROTO_HSHUBSTT	0x01
+-#define  UDPROTO_HSHUBMTT	0x02
+-#define UDCLASS_DIAGNOSTIC	0xdc
+-#define UDCLASS_WIRELESS	0xe0
+-#define  UDSUBCLASS_RF		0x01
+-#define   UDPROTO_BLUETOOTH	0x01
+-#define UDCLASS_VENDOR		0xff
+-
+-/* Interface class codes */
+-#define UICLASS_UNSPEC		0x00
+-
+-#define UICLASS_AUDIO		0x01
+-#define  UISUBCLASS_AUDIOCONTROL	1
+-#define  UISUBCLASS_AUDIOSTREAM		2
+-#define  UISUBCLASS_MIDISTREAM		3
+-
+-#define UICLASS_CDC		0x02 /* communication */
+-#define  UISUBCLASS_DIRECT_LINE_CONTROL_MODEL	1
+-#define  UISUBCLASS_ABSTRACT_CONTROL_MODEL	2
+-#define  UISUBCLASS_TELEPHONE_CONTROL_MODEL	3
+-#define  UISUBCLASS_MULTICHANNEL_CONTROL_MODEL	4
+-#define  UISUBCLASS_CAPI_CONTROLMODEL		5
+-#define  UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL 6
+-#define  UISUBCLASS_ATM_NETWORKING_CONTROL_MODEL 7
+-#define   UIPROTO_CDC_AT			1
+-
+-#define UICLASS_HID		0x03
+-#define  UISUBCLASS_BOOT	1
+-#define  UIPROTO_BOOT_KEYBOARD	1
+-
+-#define UICLASS_PHYSICAL	0x05
+-
+-#define UICLASS_IMAGE		0x06
+-
+-#define UICLASS_PRINTER		0x07
+-#define  UISUBCLASS_PRINTER	1
+-#define  UIPROTO_PRINTER_UNI	1
+-#define  UIPROTO_PRINTER_BI	2
+-#define  UIPROTO_PRINTER_1284	3
+-
+-#define UICLASS_MASS		0x08
+-#define  UISUBCLASS_RBC		1
+-#define  UISUBCLASS_SFF8020I	2
+-#define  UISUBCLASS_QIC157	3
+-#define  UISUBCLASS_UFI		4
+-#define  UISUBCLASS_SFF8070I	5
+-#define  UISUBCLASS_SCSI	6
+-#define  UIPROTO_MASS_CBI_I	0
+-#define  UIPROTO_MASS_CBI	1
+-#define  UIPROTO_MASS_BBB_OLD	2	/* Not in the spec anymore */
+-#define  UIPROTO_MASS_BBB	80	/* 'P' for the Iomega Zip drive */
+-
+-#define UICLASS_HUB		0x09
+-#define  UISUBCLASS_HUB		0
+-#define  UIPROTO_FSHUB		0
+-#define  UIPROTO_HSHUBSTT	0 /* Yes, same as previous */
+-#define  UIPROTO_HSHUBMTT	1
+-
+-#define UICLASS_CDC_DATA	0x0a
+-#define  UISUBCLASS_DATA		0
+-#define   UIPROTO_DATA_ISDNBRI		0x30    /* Physical iface */
+-#define   UIPROTO_DATA_HDLC		0x31    /* HDLC */
+-#define   UIPROTO_DATA_TRANSPARENT	0x32    /* Transparent */
+-#define   UIPROTO_DATA_Q921M		0x50    /* Management for Q921 */
+-#define   UIPROTO_DATA_Q921		0x51    /* Data for Q921 */
+-#define   UIPROTO_DATA_Q921TM		0x52    /* TEI multiplexer for Q921 */
+-#define   UIPROTO_DATA_V42BIS		0x90    /* Data compression */
+-#define   UIPROTO_DATA_Q931		0x91    /* Euro-ISDN */
+-#define   UIPROTO_DATA_V120		0x92    /* V.24 rate adaption */
+-#define   UIPROTO_DATA_CAPI		0x93    /* CAPI 2.0 commands */
+-#define   UIPROTO_DATA_HOST_BASED	0xfd    /* Host based driver */
+-#define   UIPROTO_DATA_PUF		0xfe    /* see Prot. Unit Func. Desc.*/
+-#define   UIPROTO_DATA_VENDOR		0xff    /* Vendor specific */
+-
+-#define UICLASS_SMARTCARD	0x0b
+-
+-/*#define UICLASS_FIRM_UPD	0x0c*/
+-
+-#define UICLASS_SECURITY	0x0d
+-
+-#define UICLASS_DIAGNOSTIC	0xdc
+-
+-#define UICLASS_WIRELESS	0xe0
+-#define  UISUBCLASS_RF			0x01
+-#define   UIPROTO_BLUETOOTH		0x01
+-
+-#define UICLASS_APPL_SPEC	0xfe
+-#define  UISUBCLASS_FIRMWARE_DOWNLOAD	1
+-#define  UISUBCLASS_IRDA		2
+-#define  UIPROTO_IRDA			0
+-
+-#define UICLASS_VENDOR		0xff
+-
+-#define USB_HUB_MAX_DEPTH 5
+-
+-/*
+- * Minimum time a device needs to be powered down to go through
+- * a power cycle.  XXX Are these time in the spec?
+- */
+-#define USB_POWER_DOWN_TIME	200 /* ms */
+-#define USB_PORT_POWER_DOWN_TIME	100 /* ms */
+-
+-#if 0
+-/* These are the values from the spec. */
+-#define USB_PORT_RESET_DELAY	10  /* ms */
+-#define USB_PORT_ROOT_RESET_DELAY 50  /* ms */
+-#define USB_PORT_RESET_RECOVERY	10  /* ms */
+-#define USB_PORT_POWERUP_DELAY	100 /* ms */
+-#define USB_SET_ADDRESS_SETTLE	2   /* ms */
+-#define USB_RESUME_DELAY	(20*5)  /* ms */
+-#define USB_RESUME_WAIT		10  /* ms */
+-#define USB_RESUME_RECOVERY	10  /* ms */
+-#define USB_EXTRA_POWER_UP_TIME	0   /* ms */
+-#else
+-/* Allow for marginal (i.e. non-conforming) devices. */
+-#define USB_PORT_RESET_DELAY	50  /* ms */
+-#define USB_PORT_ROOT_RESET_DELAY 250  /* ms */
+-#define USB_PORT_RESET_RECOVERY	250  /* ms */
+-#define USB_PORT_POWERUP_DELAY	300 /* ms */
+-#define USB_SET_ADDRESS_SETTLE	10  /* ms */
+-#define USB_RESUME_DELAY	(50*5)  /* ms */
+-#define USB_RESUME_WAIT		50  /* ms */
+-#define USB_RESUME_RECOVERY	50  /* ms */
+-#define USB_EXTRA_POWER_UP_TIME	20  /* ms */
+-#endif
+-
+-#define USB_MIN_POWER		100 /* mA */
+-#define USB_MAX_POWER		500 /* mA */
+-
+-#define USB_BUS_RESET_DELAY	100 /* ms XXX?*/
+-
+-#define USB_UNCONFIG_NO 0
+-#define USB_UNCONFIG_INDEX (-1)
+-
+-/*** ioctl() related stuff ***/
+-
+-struct usb_ctl_request {
+-	int	ucr_addr;
+-	usb_device_request_t ucr_request;
+-	void	*ucr_data;
+-	int	ucr_flags;
+-#define USBD_SHORT_XFER_OK	0x04	/* allow short reads */
+-	int	ucr_actlen;		/* actual length transferred */
+-};
+-
+-struct usb_alt_interface {
+-	int	uai_config_index;
+-	int	uai_interface_index;
+-	int	uai_alt_no;
+-};
+-
+-#define USB_CURRENT_CONFIG_INDEX (-1)
+-#define USB_CURRENT_ALT_INDEX (-1)
+-
+-struct usb_config_desc {
+-	int	ucd_config_index;
+-	usb_config_descriptor_t ucd_desc;
+-};
+-
+-struct usb_interface_desc {
+-	int	uid_config_index;
+-	int	uid_interface_index;
+-	int	uid_alt_index;
+-	usb_interface_descriptor_t uid_desc;
+-};
+-
+-struct usb_endpoint_desc {
+-	int	ued_config_index;
+-	int	ued_interface_index;
+-	int	ued_alt_index;
+-	int	ued_endpoint_index;
+-	usb_endpoint_descriptor_t ued_desc;
+-};
+-
+-struct usb_full_desc {
+-	int	ufd_config_index;
+-	u_int	ufd_size;
+-	u_char	*ufd_data;
+-};
+-
+-struct usb_string_desc {
+-	int	usd_string_index;
+-	int	usd_language_id;
+-	usb_string_descriptor_t usd_desc;
+-};
+-
+-struct usb_ctl_report_desc {
+-	int	ucrd_size;
+-	u_char	ucrd_data[1024];	/* filled data size will vary */
+-};
+-
+-typedef struct { u_int32_t cookie; } usb_event_cookie_t;
+-
+-#define USB_MAX_DEVNAMES 4
+-#define USB_MAX_DEVNAMELEN 16
+-struct usb_device_info {
+-	u_int8_t	udi_bus;
+-	u_int8_t	udi_addr;	/* device address */
+-	usb_event_cookie_t udi_cookie;
+-	char		udi_product[USB_MAX_STRING_LEN];
+-	char		udi_vendor[USB_MAX_STRING_LEN];
+-	char		udi_release[8];
+-	u_int16_t	udi_productNo;
+-	u_int16_t	udi_vendorNo;
+-	u_int16_t	udi_releaseNo;
+-	u_int8_t	udi_class;
+-	u_int8_t	udi_subclass;
+-	u_int8_t	udi_protocol;
+-	u_int8_t	udi_config;
+-	u_int8_t	udi_speed;
+-#define USB_SPEED_UNKNOWN	0
+-#define USB_SPEED_LOW		1
+-#define USB_SPEED_FULL		2
+-#define USB_SPEED_HIGH		3
+-#define USB_SPEED_VARIABLE	4
+-#define USB_SPEED_SUPER		5
+-	int		udi_power;	/* power consumption in mA, 0 if selfpowered */
+-	int		udi_nports;
+-	char		udi_devnames[USB_MAX_DEVNAMES][USB_MAX_DEVNAMELEN];
+-	u_int8_t	udi_ports[16];/* hub only: addresses of devices on ports */
+-#define USB_PORT_ENABLED 0xff
+-#define USB_PORT_SUSPENDED 0xfe
+-#define USB_PORT_POWERED 0xfd
+-#define USB_PORT_DISABLED 0xfc
+-};
+-
+-struct usb_ctl_report {
+-	int	ucr_report;
+-	u_char	ucr_data[1024];	/* filled data size will vary */
+-};
+-
+-struct usb_device_stats {
+-	u_long	uds_requests[4];	/* indexed by transfer type UE_* */
+-};
+-
+-#define WUSB_MIN_IE			0x80
+-#define WUSB_WCTA_IE			0x80
+-#define WUSB_WCONNECTACK_IE		0x81
+-#define WUSB_WHOSTINFO_IE		0x82
+-#define  WUHI_GET_CA(_bmAttributes_) ((_bmAttributes_) & 0x3)
+-#define   WUHI_CA_RECONN		0x00
+-#define   WUHI_CA_LIMITED		0x01
+-#define   WUHI_CA_ALL			0x03
+-#define  WUHI_GET_MLSI(_bmAttributes_) (((_bmAttributes_) & 0x38) >> 3)
+-#define WUSB_WCHCHANGEANNOUNCE_IE	0x83
+-#define WUSB_WDEV_DISCONNECT_IE		0x84
+-#define WUSB_WHOST_DISCONNECT_IE	0x85
+-#define WUSB_WRELEASE_CHANNEL_IE	0x86
+-#define WUSB_WWORK_IE			0x87
+-#define WUSB_WCHANNEL_STOP_IE		0x88
+-#define WUSB_WDEV_KEEPALIVE_IE		0x89
+-#define WUSB_WISOCH_DISCARD_IE		0x8A
+-#define WUSB_WRESETDEVICE_IE		0x8B
+-#define WUSB_WXMIT_PACKET_ADJUST_IE	0x8C
+-#define WUSB_MAX_IE			0x8C
+-
+-/* Device Notification Types */
+-
+-#define WUSB_DN_MIN			0x01
+-#define WUSB_DN_CONNECT			0x01
+-# define WUSB_DA_OLDCONN	0x00
+-# define WUSB_DA_NEWCONN	0x01
+-# define WUSB_DA_SELF_BEACON	0x02
+-# define WUSB_DA_DIR_BEACON	0x04
+-# define WUSB_DA_NO_BEACON	0x06
+-#define WUSB_DN_DISCONNECT		0x02
+-#define WUSB_DN_EPRDY			0x03
+-#define WUSB_DN_MASAVAILCHANGED		0x04
+-#define WUSB_DN_REMOTEWAKEUP		0x05
+-#define WUSB_DN_SLEEP			0x06
+-#define WUSB_DN_ALIVE			0x07
+-#define WUSB_DN_MAX			0x07
+-
+-#ifdef _MSC_VER
+-#include <pshpack1.h>
+-#endif
+-
+-/* WUSB Handshake Data.  Used during the SET/GET HANDSHAKE requests */
+-typedef struct wusb_hndshk_data {
+-	uByte bMessageNumber;
+-	uByte bStatus;
+-	uByte tTKID[3];
+-	uByte bReserved;
+-	uByte CDID[16];
+-	uByte Nonce[16];
+-	uByte MIC[8];
+-} UPACKED wusb_hndshk_data_t;
+-#define WUSB_HANDSHAKE_LEN_FOR_MIC	38
+-
+-/* WUSB Connection Context */
+-typedef struct wusb_conn_context {
+-	uByte CHID [16];
+-	uByte CDID [16];
+-	uByte CK [16];
+-} UPACKED wusb_conn_context_t;
+-
+-/* WUSB Security Descriptor */
+-typedef struct wusb_security_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uWord wTotalLength;
+-	uByte bNumEncryptionTypes;
+-} UPACKED wusb_security_desc_t;
+-
+-/* WUSB Encryption Type Descriptor */
+-typedef struct wusb_encrypt_type_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-
+-	uByte bEncryptionType;
+-#define WUETD_UNSECURE		0
+-#define WUETD_WIRED		1
+-#define WUETD_CCM_1		2
+-#define WUETD_RSA_1		3
+-
+-	uByte bEncryptionValue;
+-	uByte bAuthKeyIndex;
+-} UPACKED wusb_encrypt_type_desc_t;
+-
+-/* WUSB Key Descriptor */
+-typedef struct wusb_key_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte tTKID[3];
+-	uByte bReserved;
+-	uByte KeyData[1];	/* variable length */
+-} UPACKED wusb_key_desc_t;
+-
+-/* WUSB BOS Descriptor (Binary device Object Store) */
+-typedef struct wusb_bos_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uWord wTotalLength;
+-	uByte bNumDeviceCaps;
+-} UPACKED wusb_bos_desc_t;
+-
+-#define USB_DEVICE_CAPABILITY_20_EXTENSION	0x02
+-typedef struct usb_dev_cap_20_ext_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bDevCapabilityType;
+-#define USB_20_EXT_LPM				0x02
+-	uDWord bmAttributes;
+-} UPACKED usb_dev_cap_20_ext_desc_t;
+-
+-#define USB_DEVICE_CAPABILITY_SS_USB		0x03
+-typedef struct usb_dev_cap_ss_usb {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bDevCapabilityType;
+-#define USB_DC_SS_USB_LTM_CAPABLE		0x02
+-	uByte bmAttributes;
+-#define USB_DC_SS_USB_SPEED_SUPPORT_LOW		0x01
+-#define USB_DC_SS_USB_SPEED_SUPPORT_FULL	0x02
+-#define USB_DC_SS_USB_SPEED_SUPPORT_HIGH	0x04
+-#define USB_DC_SS_USB_SPEED_SUPPORT_SS		0x08
+-	uWord wSpeedsSupported;
+-	uByte bFunctionalitySupport;
+-	uByte bU1DevExitLat;
+-	uWord wU2DevExitLat;
+-} UPACKED usb_dev_cap_ss_usb_t;
+-
+-#define USB_DEVICE_CAPABILITY_CONTAINER_ID	0x04
+-typedef struct usb_dev_cap_container_id {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bDevCapabilityType;
+-	uByte bReserved;
+-	uByte containerID[16];
+-} UPACKED usb_dev_cap_container_id_t;
+-
+-/* Device Capability Type Codes */
+-#define WUSB_DEVICE_CAPABILITY_WIRELESS_USB 0x01
+-
+-/* Device Capability Descriptor */
+-typedef struct wusb_dev_cap_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bDevCapabilityType;
+-	uByte caps[1];	/* Variable length */
+-} UPACKED wusb_dev_cap_desc_t;
+-
+-/* Device Capability Descriptor */
+-typedef struct wusb_dev_cap_uwb_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bDevCapabilityType;
+-	uByte bmAttributes;
+-	uWord wPHYRates;	/* Bitmap */
+-	uByte bmTFITXPowerInfo;
+-	uByte bmFFITXPowerInfo;
+-	uWord bmBandGroup;
+-	uByte bReserved;
+-} UPACKED wusb_dev_cap_uwb_desc_t;
+-
+-/* Wireless USB Endpoint Companion Descriptor */
+-typedef struct wusb_endpoint_companion_desc {
+-	uByte bLength;
+-	uByte bDescriptorType;
+-	uByte bMaxBurst;
+-	uByte bMaxSequence;
+-	uWord wMaxStreamDelay;
+-	uWord wOverTheAirPacketSize;
+-	uByte bOverTheAirInterval;
+-	uByte bmCompAttributes;
+-} UPACKED wusb_endpoint_companion_desc_t;
+-
+-/* Wireless USB Numeric Association M1 Data Structure */
+-typedef struct wusb_m1_data {
+-	uByte version;
+-	uWord langId;
+-	uByte deviceFriendlyNameLength;
+-	uByte sha_256_m3[32];
+-	uByte deviceFriendlyName[256];
+-} UPACKED wusb_m1_data_t;
+-
+-typedef struct wusb_m2_data {
+-	uByte version;
+-	uWord langId;
+-	uByte hostFriendlyNameLength;
+-	uByte pkh[384];
+-	uByte hostFriendlyName[256];
+-} UPACKED wusb_m2_data_t;
+-
+-typedef struct wusb_m3_data {
+-	uByte pkd[384];
+-	uByte nd;
+-} UPACKED wusb_m3_data_t;
+-
+-typedef struct wusb_m4_data {
+-	uDWord _attributeTypeIdAndLength_1;
+-	uWord  associationTypeId;
+-
+-	uDWord _attributeTypeIdAndLength_2;
+-	uWord  associationSubTypeId;
+-
+-	uDWord _attributeTypeIdAndLength_3;
+-	uDWord length;
+-
+-	uDWord _attributeTypeIdAndLength_4;
+-	uDWord associationStatus;
+-
+-	uDWord _attributeTypeIdAndLength_5;
+-	uByte  chid[16];
+-
+-	uDWord _attributeTypeIdAndLength_6;
+-	uByte  cdid[16];
+-
+-	uDWord _attributeTypeIdAndLength_7;
+-	uByte  bandGroups[2];
+-} UPACKED wusb_m4_data_t;
+-
+ #ifdef _MSC_VER
+ #include <poppack.h>
+ #endif
+--- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
+@@ -240,7 +240,8 @@ static int notrace fiq_increment_dma_buf
+ 	hcdma_data_t hcdma;
+ 	int i = st->channel[n].dma_info.index;
+ 	int len;
+-	struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
++	struct fiq_dma_blob *blob =
++		(struct fiq_dma_blob *)(uintptr_t)st->dma_base;
+ 
+ 	len = fiq_get_xfer_len(st, n);
+ 	fiq_print(FIQDBG_INT, st, "LEN: %03d", len);
+@@ -249,7 +250,7 @@ static int notrace fiq_increment_dma_buf
+ 	if (i > 6)
+ 		BUG();
+ 
+-	hcdma.d32 = (dma_addr_t) &blob->channel[n].index[i].buf[0];
++	hcdma.d32 = (u32)(uintptr_t)&blob->channel[n].index[i].buf[0];
+ 	FIQ_WRITE(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA, hcdma.d32);
+ 	st->channel[n].dma_info.index = i;
+ 	return 0;
+@@ -289,7 +290,8 @@ static int notrace fiq_iso_out_advance(s
+ 	hcsplt_data_t hcsplt;
+ 	hctsiz_data_t hctsiz;
+ 	hcdma_data_t hcdma;
+-	struct fiq_dma_blob *blob = (struct fiq_dma_blob *) st->dma_base;
++	struct fiq_dma_blob *blob =
++		(struct fiq_dma_blob *)(uintptr_t)st->dma_base;
+ 	int last = 0;
+ 	int i = st->channel[n].dma_info.index;
+ 
+@@ -301,7 +303,7 @@ static int notrace fiq_iso_out_advance(s
+ 		last = 1;
+ 
+ 	/* New DMA address - address of bounce buffer referred to in index */
+-	hcdma.d32 = (dma_addr_t) blob->channel[n].index[i].buf;
++	hcdma.d32 = (u32)(uintptr_t)blob->channel[n].index[i].buf;
+ 	//hcdma.d32 = FIQ_READ(st->dwc_regs_base + HC_START + (HC_OFFSET * n) + HC_DMA);
+ 	//hcdma.d32 += st->channel[n].dma_info.slot_len[i];
+ 	fiq_print(FIQDBG_INT, st, "LAST: %01d ", last);
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
+@@ -1270,7 +1270,8 @@ static void assign_and_init_hc(dwc_otg_h
+ 	hc->multi_count = 1;
+ 
+ 	if (hcd->core_if->dma_enable) {
+-		hc->xfer_buff = (uint8_t *) urb->dma + urb->actual_length;
++		hc->xfer_buff =
++		    (uint8_t *)(uintptr_t)urb->dma + urb->actual_length;
+ 
+ 		/* For non-dword aligned case */
+ 		if (((unsigned long)hc->xfer_buff & 0x3)
+@@ -1314,7 +1315,8 @@ static void assign_and_init_hc(dwc_otg_h
+ 			hc->ep_is_in = 0;
+ 			hc->data_pid_start = DWC_OTG_HC_PID_SETUP;
+ 			if (hcd->core_if->dma_enable) {
+-				hc->xfer_buff = (uint8_t *) urb->setup_dma;
++				hc->xfer_buff =
++					(uint8_t *)(uintptr_t)urb->setup_dma;
+ 			} else {
+ 				hc->xfer_buff = (uint8_t *) urb->setup_packet;
+ 			}
+@@ -1362,7 +1364,8 @@ static void assign_and_init_hc(dwc_otg_h
+ 
+ 			hc->xfer_len = 0;
+ 			if (hcd->core_if->dma_enable) {
+-				hc->xfer_buff = (uint8_t *) hcd->status_buf_dma;
++				hc->xfer_buff = (uint8_t *)
++					(uintptr_t)hcd->status_buf_dma;
+ 			} else {
+ 				hc->xfer_buff = (uint8_t *) hcd->status_buf;
+ 			}
+@@ -1390,7 +1393,7 @@ static void assign_and_init_hc(dwc_otg_h
+ 			frame_desc->status = 0;
+ 
+ 			if (hcd->core_if->dma_enable) {
+-				hc->xfer_buff = (uint8_t *) urb->dma;
++				hc->xfer_buff = (uint8_t *)(uintptr_t)urb->dma;
+ 			} else {
+ 				hc->xfer_buff = (uint8_t *) urb->buf;
+ 			}
+@@ -1571,8 +1574,10 @@ int fiq_fsm_setup_periodic_dma(dwc_otg_h
+ 		 * Pointer arithmetic on hcd->fiq_state->dma_base (a dma_addr_t)
+ 		 * to point it to the correct offset in the allocated buffers.
+ 		 */
+-		blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
+-		st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
++		blob = (struct fiq_dma_blob *)
++			(uintptr_t)hcd->fiq_state->dma_base;
++		st->hcdma_copy.d32 =(u32)(uintptr_t)
++			blob->channel[hc->hc_num].index[0].buf;
+ 
+ 		/* Calculate the max number of CSPLITS such that the FIQ can time out
+ 		 * a transaction if it fails.
+@@ -1627,8 +1632,10 @@ int fiq_fsm_setup_periodic_dma(dwc_otg_h
+ 			 * dma_addr_t) to point it to the correct offset in the
+ 			 * allocated buffers.
+ 			 */
+-			blob = (struct fiq_dma_blob *) hcd->fiq_state->dma_base;
+-			st->hcdma_copy.d32 = (dma_addr_t) blob->channel[hc->hc_num].index[0].buf;
++			blob = (struct fiq_dma_blob *)
++				(uintptr_t)hcd->fiq_state->dma_base;
++			st->hcdma_copy.d32 = (u32)(uintptr_t)
++				blob->channel[hc->hc_num].index[0].buf;
+ 
+ 			/* fixup xfersize to the actual packet size */
+ 			st->hctsiz_copy.b.pid = 0;
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_ddma.c
+@@ -620,7 +620,8 @@ static void init_non_isoc_dma_desc(dwc_o
+ 
+ 		if (n_desc) {
+ 			/* SG request - more than 1 QTDs */
+-			hc->xfer_buff = (uint8_t *)qtd->urb->dma + qtd->urb->actual_length;
++			hc->xfer_buff = (uint8_t *)(uintptr_t)qtd->urb->dma +
++					qtd->urb->actual_length;
+ 			hc->xfer_len = qtd->urb->length - qtd->urb->actual_length;
+ 		}
+ 
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
+@@ -1857,10 +1857,10 @@ static int32_t handle_hc_ahberr_intr(dwc
+ 	DWC_ERROR("  Max packet size: %d\n",
+ 		  dwc_otg_hcd_get_mps(&urb->pipe_info));
+ 	DWC_ERROR("  Data buffer length: %d\n", urb->length);
+-	DWC_ERROR("  Transfer buffer: %p, Transfer DMA: %p\n",
+-		  urb->buf, (void *)urb->dma);
+-	DWC_ERROR("  Setup buffer: %p, Setup DMA: %p\n",
+-		  urb->setup_packet, (void *)urb->setup_dma);
++	DWC_ERROR("  Transfer buffer: %p, Transfer DMA: %pad\n",
++		  urb->buf, &urb->dma);
++	DWC_ERROR("  Setup buffer: %p, Setup DMA: %pad\n",
++		  urb->setup_packet, &urb->setup_dma);
+ 	DWC_ERROR("  Interval: %d\n", urb->interval);
+ 
+ 	/* Core haltes the channel for Descriptor DMA mode */
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+@@ -482,8 +482,8 @@ static void hcd_init_fiq(void *cookie)
+ 			otg_dev->os_dep.mphi_base + 0x1f0;
+ 		dwc_otg_hcd->fiq_state->mphi_regs.swirq_clr =
+ 			otg_dev->os_dep.mphi_base + 0x1f4;
+-		DWC_WARN("Fake MPHI regs_base at 0x%08x",
+-			 (int)dwc_otg_hcd->fiq_state->mphi_regs.base);
++		DWC_WARN("Fake MPHI regs_base at %px",
++			 dwc_otg_hcd->fiq_state->mphi_regs.base);
+ 	} else {
+ 		dwc_otg_hcd->fiq_state->mphi_regs.ctrl =
+ 			otg_dev->os_dep.mphi_base + 0x4c;
+--- a/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd_intr.c
+@@ -3377,7 +3377,7 @@ void predict_nextep_seq( dwc_otg_core_if
+ 	dtknq1_data_t dtknqr1;
+ 	uint32_t in_tkn_epnums[4];
+ 	uint8_t seqnum[MAX_EPS_CHANNELS];
+-	uint8_t intkn_seq[TOKEN_Q_DEPTH];
++	uint8_t intkn_seq[1 << 5];
+ 	grstctl_t resetctl = {.d32 = 0 };
+ 	uint8_t temp;
+ 	int ndx = 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0363-gpio-fsm-Fix-a-build-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0363-gpio-fsm-Fix-a-build-warning.patch
new file mode 100644
index 0000000000..742d23bbc9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0363-gpio-fsm-Fix-a-build-warning.patch
@@ -0,0 +1,22 @@
+From f6df23eb130f2407565db92e60b66a56b9b6fdea Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Oct 2020 12:10:04 +0000
+Subject: [PATCH] gpio-fsm: Fix a build warning
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/gpio-fsm.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpio/gpio-fsm.c
++++ b/drivers/gpio/gpio-fsm.c
+@@ -956,7 +956,8 @@ static int gpio_fsm_probe(struct platfor
+ 	// add reserved words to the symbol table
+ 	for (i = 0; i < ARRAY_SIZE(reserved_symbols); i++) {
+ 		if (reserved_symbols[i])
+-			add_symbol(&gf->symtab, reserved_symbols[i], (void *)i);
++			add_symbol(&gf->symtab, reserved_symbols[i],
++				   (void *)(uintptr_t)i);
+ 	}
+ 
+ 	// parse the state
diff --git a/target/linux/bcm27xx/patches-5.10/950-0364-rpivid_h625-Fix-build-warnings.patch b/target/linux/bcm27xx/patches-5.10/950-0364-rpivid_h625-Fix-build-warnings.patch
new file mode 100644
index 0000000000..af66eafa53
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0364-rpivid_h625-Fix-build-warnings.patch
@@ -0,0 +1,68 @@
+From 9543aebf83bfe2a2e81a607dc8240ee3a9a1ce66 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Oct 2020 12:10:40 +0000
+Subject: [PATCH] rpivid_h625: Fix build warnings
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/staging/media/rpivid/rpivid_h265.c | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -1341,10 +1341,10 @@ static int frame_end(struct rpivid_dev *
+ 
+ 		if (gptr_realloc_new(dev, de->cmd_copy_gptr, cmd_alloc)) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "Alloc cmd buffer (%d): FAILED\n", cmd_alloc);
++				 "Alloc cmd buffer (%zu): FAILED\n", cmd_alloc);
+ 			return -ENOMEM;
+ 		}
+-		v4l2_info(&dev->v4l2_dev, "Alloc cmd buffer (%d): OK\n",
++		v4l2_info(&dev->v4l2_dev, "Alloc cmd buffer (%zu): OK\n",
+ 			  cmd_alloc);
+ 	}
+ 
+@@ -1696,12 +1696,12 @@ static void rpivid_h265_setup(struct rpi
+ 				       bits_alloc,
+ 				       DMA_ATTR_FORCE_CONTIGUOUS) != 0) {
+ 				v4l2_err(&dev->v4l2_dev,
+-					 "Unable to alloc buf (%d) for bit copy\n",
++					 "Unable to alloc buf (%zu) for bit copy\n",
+ 					 bits_alloc);
+ 				goto fail;
+ 			}
+ 			v4l2_info(&dev->v4l2_dev,
+-				  "Alloc buf (%d) for bit copy OK\n",
++				  "Alloc buf (%zu) for bit copy OK\n",
+ 				  bits_alloc);
+ 		}
+ 	}
+@@ -1995,11 +1995,11 @@ static void phase1_thread(struct rpivid_
+ 	if (de->p1_status & STATUS_PU_EXHAUSTED) {
+ 		if (gptr_realloc_new(dev, pu_gptr, next_size(pu_gptr->size))) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: PU realloc (%#x) failed\n",
++				 "%s: PU realloc (%zx) failed\n",
+ 				 __func__, pu_gptr->size);
+ 			goto fail;
+ 		}
+-		v4l2_info(&dev->v4l2_dev, "%s: PU realloc (%#x) OK\n",
++		v4l2_info(&dev->v4l2_dev, "%s: PU realloc (%zx) OK\n",
+ 			  __func__, pu_gptr->size);
+ 	}
+ 
+@@ -2007,11 +2007,11 @@ static void phase1_thread(struct rpivid_
+ 		if (gptr_realloc_new(dev, coeff_gptr,
+ 				     next_size(coeff_gptr->size))) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: Coeff realloc (%#x) failed\n",
++				 "%s: Coeff realloc (%zx) failed\n",
+ 				 __func__, coeff_gptr->size);
+ 			goto fail;
+ 		}
+-		v4l2_info(&dev->v4l2_dev, "%s: Coeff realloc (%#x) OK\n",
++		v4l2_info(&dev->v4l2_dev, "%s: Coeff realloc (%zx) OK\n",
+ 			  __func__, coeff_gptr->size);
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0365-bcm2708_fb-Fix-a-build-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0365-bcm2708_fb-Fix-a-build-warning.patch
new file mode 100644
index 0000000000..1c59fa7f35
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0365-bcm2708_fb-Fix-a-build-warning.patch
@@ -0,0 +1,22 @@
+From c672997eca56c52f5ba42cd644168dcb35e52e4a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Oct 2020 12:12:22 +0000
+Subject: [PATCH] bcm2708_fb: Fix a build warning
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/video/fbdev/bcm2708_fb.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/video/fbdev/bcm2708_fb.c
++++ b/drivers/video/fbdev/bcm2708_fb.c
+@@ -693,7 +693,8 @@ static long vc_mem_copy(struct bcm2708_f
+ 		u8 *q = (u8 *)ioparam->dst + offset;
+ 
+ 		dma_memcpy(fb, bus_addr,
+-			   INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
++			   INTALIAS_L1L2_NONALLOCATING((u32)(uintptr_t)p),
++						       size);
+ 		if (copy_to_user(q, buf, s) != 0) {
+ 			pr_err("[%s]: failed to copy-to-user\n", __func__);
+ 			rc = -EFAULT;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0366-PiFi-40-Devicetree-files.patch b/target/linux/bcm27xx/patches-5.10/950-0366-PiFi-40-Devicetree-files.patch
new file mode 100644
index 0000000000..2f8db38b81
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0366-PiFi-40-Devicetree-files.patch
@@ -0,0 +1,91 @@
+From 5dd5b4625a4435f64ee6a1c9f47e3609e771f14b Mon Sep 17 00:00:00 2001
+From: David Knell <david.knell@gmail.com>
+Date: Wed, 28 Oct 2020 14:20:56 +0000
+Subject: [PATCH] PiFi-40 Devicetree files
+
+Signed-off-by: David Knell <david.knell@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 +++
+ .../arm/boot/dts/overlays/pifi-40-overlay.dts | 50 +++++++++++++++++++
+ 3 files changed, 57 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/pifi-40-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -125,6 +125,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	pca953x.dtbo \
+ 	pibell.dtbo \
+ 	pifacedigital.dtbo \
++	pifi-40.dtbo \
+ 	piglow.dtbo \
+ 	piscreen.dtbo \
+ 	piscreen2r.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2000,6 +2000,12 @@ Params: spi-present-mask        8-bit in
+                                 0-3, which can be configured with JP1 and JP2.
+ 
+ 
++Name:   pifi-40
++Info:   Configures the PiFi 40W stereo amplifier
++Load:   dtoverlay=pifi-40
++Params: <None>
++
++
+ Name:   piglow
+ Info:   Configures the PiGlow by pimoroni.com
+ Load:   dtoverlay=piglow
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pifi-40-overlay.dts
+@@ -0,0 +1,50 @@
++// Definitions for PiFi-40 Amp
++/dts-v1/;
++/plugin/;
++#include <dt-bindings/gpio/gpio.h>
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tas5711l: audio-codec@1a {
++				compatible = "ti,tas5711";
++				reg = <0x1a>;
++				#sound-dai-cells = <0>;
++				sound-name-prefix = "Left";
++				status = "okay";
++			};
++
++			tas5711r: audio-codec@1b {
++				compatible = "ti,tas5711";
++				reg = <0x1b>;
++				#sound-dai-cells = <0>;
++				sound-name-prefix = "Right";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		pifi_40: __overlay__ {
++			compatible = "pifi,pifi-40";
++			audio-codec = <&tas5711l &tas5711r>;
++			i2s-controller = <&i2s>;
++			pdn-gpios = <&gpio 23 1>;
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0367-PiFi-40-driver-Makefile-and-Kconfig.patch b/target/linux/bcm27xx/patches-5.10/950-0367-PiFi-40-driver-Makefile-and-Kconfig.patch
new file mode 100644
index 0000000000..82e781b08c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0367-PiFi-40-driver-Makefile-and-Kconfig.patch
@@ -0,0 +1,332 @@
+From 0fa0f5932fff8c960862176fd61a7bccd2f28b90 Mon Sep 17 00:00:00 2001
+From: David Knell <david.knell@gmail.com>
+Date: Wed, 28 Oct 2020 14:21:37 +0000
+Subject: [PATCH] PiFi-40 driver, Makefile and Kconfig
+
+Signed-off-by: David Knell <david.knell@gmail.com>
+---
+ sound/soc/bcm/Kconfig   |   8 ++
+ sound/soc/bcm/Makefile  |   3 +
+ sound/soc/bcm/pifi-40.c | 283 ++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 294 insertions(+)
+ create mode 100644 sound/soc/bcm/pifi-40.c
+
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -100,6 +100,14 @@ config SND_BCM2708_SOC_HIFIBERRY_AMP
+         help
+          Say Y or M if you want to add support for the HifiBerry Amp amplifier board.
+ 
++ config SND_BCM2708_SOC_PIFI_40
++         tristate "Support for the PiFi-40 amp"
++         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++         select SND_SOC_TAS571X
++         select SND_PIFI_40
++         help
++          Say Y or M if you want to add support for the PiFi40 amp board
++
+ config SND_BCM2708_SOC_RPI_CIRRUS
+         tristate "Support for Cirrus Logic Audio Card"
+         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -45,6 +45,7 @@ snd-soc-pisound-objs := pisound.o
+ snd-soc-fe-pi-audio-objs := fe-pi-audio.o
+ snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
+ snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
++snd-soc-pifi-40-objs := pifi-40.o
+ 
+ obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD)  += snd-soc-googlevoicehat-codec.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
+@@ -74,3 +75,5 @@ obj-$(CONFIG_SND_PISOUND) += snd-soc-pis
+ obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
+ obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o
+ obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o
++obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o
++
+--- /dev/null
++++ b/sound/soc/bcm/pifi-40.c
+@@ -0,0 +1,283 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * ALSA ASoC Machine Driver for PiFi-40
++ *
++ * Author:	David Knell <david.knell@gmail.com)
++ *		based on code by Daniel Matuschek <info@crazy-audio.com>
++ *		based on code by Florian Meier <florian.meier@koalo.de>
++ * Copyright (C) 2020
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/gpio/consumer.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <linux/firmware.h>
++#include <linux/delay.h>
++#include <sound/tlv.h>
++
++static struct gpio_desc *pdn_gpio;
++static int vol = 0x30;
++
++// Volume control
++static int pifi_40_vol_get(struct snd_kcontrol *kcontrol,
++			   struct snd_ctl_elem_value *ucontrol)
++{
++	ucontrol->value.integer.value[0] = vol;
++	ucontrol->value.integer.value[1] = vol;
++	return 0;
++}
++
++static int pifi_40_vol_set(struct snd_kcontrol *kcontrol,
++			   struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
++	struct snd_soc_pcm_runtime *rtd;
++	unsigned int v = ucontrol->value.integer.value[0];
++	struct snd_soc_component *dac[2];
++
++	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++	dac[0] = asoc_rtd_to_codec(rtd, 0)->component;
++	dac[1] = asoc_rtd_to_codec(rtd, 1)->component;
++
++	snd_soc_component_write(dac[0], 0x07, 255 - v);
++	snd_soc_component_write(dac[1], 0x07, 255 - v);
++
++	vol = v;
++	return 1;
++}
++
++static const DECLARE_TLV_DB_SCALE(digital_tlv_master, -10350, 50, 1);
++static const struct snd_kcontrol_new pifi_40_controls[] = {
++	SOC_DOUBLE_R_EXT_TLV("Master Volume", 0x00, 0x01,
++			     0x00, // Min
++			     0xff, // Max
++			     0x01, // Invert
++			     pifi_40_vol_get, pifi_40_vol_set,
++			     digital_tlv_master)
++};
++
++static const char * const codec_ctl_pfx[] = { "Left", "Right" };
++
++static const char * const codec_ctl_name[] = { "Master Volume",
++					"Speaker Volume",
++					"Speaker Switch" };
++
++static int snd_pifi_40_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_card *card = rtd->card;
++	struct snd_soc_component *dac[2];
++	struct snd_kcontrol *kctl;
++	int i, j;
++
++	dac[0] = asoc_rtd_to_codec(rtd, 0)->component;
++	dac[1] = asoc_rtd_to_codec(rtd, 1)->component;
++
++
++	// Set up cards - pulse power down first
++	gpiod_set_value_cansleep(pdn_gpio, 1);
++	usleep_range(1000, 10000);
++	gpiod_set_value_cansleep(pdn_gpio, 0);
++	usleep_range(20000, 30000);
++
++	// Oscillator trim
++	snd_soc_component_write(dac[0], 0x1b, 0);
++	snd_soc_component_write(dac[1], 0x1b, 0);
++	usleep_range(60000, 80000);
++
++	// Common setup
++	for (i = 0; i < 2; i++) {
++		// MCLK at 64fs, sample rate 44.1 or 48kHz
++		snd_soc_component_write(dac[i], 0x00, 0x60);
++
++		// Set up for PBTL
++		snd_soc_component_write(dac[i], 0x19, 0x3A);
++		snd_soc_component_write(dac[i], 0x25, 0x01103245);
++
++		// Master vol to -10db
++		snd_soc_component_write(dac[i], 0x07, 0x44);
++	}
++	// Inputs set to L and R respectively
++	snd_soc_component_write(dac[0], 0x20, 0x00017772);
++	snd_soc_component_write(dac[1], 0x20, 0x00107772);
++
++	// Remove codec controls
++	for (i = 0; i < 2; i++) {
++		for (j = 0; j < 3; j++) {
++			char cname[256];
++
++			sprintf(cname, "%s %s", codec_ctl_pfx[i],
++				codec_ctl_name[j]);
++			kctl = snd_soc_card_get_kcontrol(card, cname);
++			if (!kctl) {
++				pr_info("Control %s not found\n",
++				       cname);
++			} else {
++				kctl->vd[0].access =
++					SNDRV_CTL_ELEM_ACCESS_READWRITE;
++				snd_ctl_remove(card->snd_card, kctl);
++			}
++		}
++	}
++
++	return 0;
++}
++
++static int snd_pifi_40_hw_params(struct snd_pcm_substream *substream,
++				 struct snd_pcm_hw_params *params)
++{
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
++	unsigned int sample_bits;
++
++	sample_bits = snd_pcm_format_physical_width(params_format(params));
++	return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++
++static struct snd_soc_ops snd_pifi_40_ops = { .hw_params =
++						      snd_pifi_40_hw_params };
++
++static struct snd_soc_dai_link_component pifi_40_codecs[] = {
++	{
++		.dai_name = "tas571x-hifi",
++	},
++	{
++		.dai_name = "tas571x-hifi",
++	},
++};
++
++SND_SOC_DAILINK_DEFS(
++	pifi_40_dai, DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi"),
++			   COMP_CODEC("tas571x.1-001b", "tas571x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_pifi_40_dai[] = {
++	{
++		.name = "PiFi40",
++		.stream_name = "PiFi40",
++		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++			   SND_SOC_DAIFMT_CBS_CFS,
++		.ops = &snd_pifi_40_ops,
++		.init = snd_pifi_40_init,
++		SND_SOC_DAILINK_REG(pifi_40_dai),
++	},
++};
++
++// Machine driver
++static struct snd_soc_card snd_pifi_40 = {
++	.name = "PiFi40",
++	.owner = THIS_MODULE,
++	.dai_link = snd_pifi_40_dai,
++	.num_links = ARRAY_SIZE(snd_pifi_40_dai),
++	.controls = pifi_40_controls,
++	.num_controls = ARRAY_SIZE(pifi_40_controls)
++};
++
++static void snd_pifi_40_pdn(struct snd_soc_card *card, int on)
++{
++	if (pdn_gpio)
++		gpiod_set_value_cansleep(pdn_gpio, on ? 0 : 1);
++}
++
++static int snd_pifi_40_probe(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = &snd_pifi_40;
++	int ret = 0, i = 0;
++
++	card->dev = &pdev->dev;
++	platform_set_drvdata(pdev, &snd_pifi_40);
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai;
++
++		dai = &snd_pifi_40_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node, "i2s-controller",
++					    0);
++		if (i2s_node) {
++			for (i = 0; i < card->num_links; i++) {
++				dai->cpus->dai_name = NULL;
++				dai->cpus->of_node = i2s_node;
++				dai->platforms->name = NULL;
++				dai->platforms->of_node = i2s_node;
++			}
++		}
++
++		pifi_40_codecs[0].of_node =
++			of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
++		pifi_40_codecs[1].of_node =
++			of_parse_phandle(pdev->dev.of_node, "audio-codec", 1);
++		if (!pifi_40_codecs[0].of_node || !pifi_40_codecs[1].of_node) {
++			dev_err(&pdev->dev,
++				"Property 'audio-codec' missing or invalid\n");
++			return -EINVAL;
++		}
++
++		pdn_gpio = devm_gpiod_get_optional(&pdev->dev, "pdn",
++						   GPIOD_OUT_LOW);
++		if (IS_ERR(pdn_gpio)) {
++			ret = PTR_ERR(pdn_gpio);
++			dev_err(&pdev->dev, "failed to get pdn gpio: %d\n",
++				ret);
++			return ret;
++		}
++
++		ret = snd_soc_register_card(&snd_pifi_40);
++		if (ret < 0) {
++			dev_err(&pdev->dev,
++				"snd_soc_register_card() failed: %d\n", ret);
++			return ret;
++		}
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++static int snd_pifi_40_remove(struct platform_device *pdev)
++{
++	struct snd_soc_card *card = platform_get_drvdata(pdev);
++
++	kfree(&card->drvdata);
++	snd_pifi_40_pdn(&snd_pifi_40, 0);
++	return snd_soc_unregister_card(&snd_pifi_40);
++}
++
++static const struct of_device_id snd_pifi_40_of_match[] = {
++	{
++		.compatible = "pifi,pifi-40",
++	},
++	{ /* sentinel */ },
++};
++
++MODULE_DEVICE_TABLE(of, snd_pifi_40_of_match);
++
++static struct platform_driver snd_pifi_40_driver = {
++	.driver = {
++		.name = "snd-pifi-40",
++		.owner = THIS_MODULE,
++		.of_match_table = snd_pifi_40_of_match,
++	},
++	.probe = snd_pifi_40_probe,
++	.remove = snd_pifi_40_remove,
++};
++
++module_platform_driver(snd_pifi_40_driver);
++
++MODULE_AUTHOR("David Knell <david.knell@gmail.com>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for PiFi-40");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0368-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch b/target/linux/bcm27xx/patches-5.10/950-0368-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch
new file mode 100644
index 0000000000..b02dcb8492
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0368-bcm2835-pcm-Fix-up-multichannel-pcm-audio.patch
@@ -0,0 +1,55 @@
+From 658f2c37e37817ed680b85a5aa97a4661d0306a6 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 27 Oct 2020 12:24:14 +0000
+Subject: [PATCH] bcm2835-pcm: Fix up multichannel pcm audio
+
+Fixes: a9c1660ff5f02d048c5f31abf1fd1108ccf9ef87
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ .../vc04_services/bcm2835-audio/bcm2835-pcm.c | 21 +++++++++----------
+ 1 file changed, 10 insertions(+), 11 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+@@ -14,14 +14,14 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_CONTINUOUS |  SNDRV_PCM_RATE_8000_192000,
++	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_192000,
+ 	.rate_min = 8000,
+ 	.rate_max = 192000,
+ 	.channels_min = 1,
+-	.channels_max = 2,
+-	.buffer_bytes_max = 128 * 1024,
++	.channels_max = 8,
++	.buffer_bytes_max = 512 * 1024,
+ 	.period_bytes_min = 1 * 1024,
+-	.period_bytes_max = 128 * 1024,
++	.period_bytes_max = 512 * 1024,
+ 	.periods_min = 1,
+ 	.periods_max = 128,
+ };
+@@ -31,16 +31,15 @@ static const struct snd_pcm_hardware snd
+ 		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ 		 SNDRV_PCM_INFO_SYNC_APPLPTR),
+ 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+-	.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+-	SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+-	SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
++	.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
++	SNDRV_PCM_RATE_48000,
+ 	.rate_min = 44100,
+-	.rate_max = 192000,
++	.rate_max = 48000,
+ 	.channels_min = 2,
+-	.channels_max = 8,
+-	.buffer_bytes_max = 512 * 1024,
++	.channels_max = 2,
++	.buffer_bytes_max = 128 * 1024,
+ 	.period_bytes_min = 1 * 1024,
+-	.period_bytes_max = 512 * 1024,
++	.period_bytes_max = 128 * 1024,
+ 	.periods_min = 1,
+ 	.periods_max = 128,
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0369-watchdog-bcm2835-Ignore-params-after-the-partition-n.patch b/target/linux/bcm27xx/patches-5.10/950-0369-watchdog-bcm2835-Ignore-params-after-the-partition-n.patch
new file mode 100644
index 0000000000..dba18c6fc6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0369-watchdog-bcm2835-Ignore-params-after-the-partition-n.patch
@@ -0,0 +1,29 @@
+From c518032ec09c3e21872a5b2f9114655d55d9ade1 Mon Sep 17 00:00:00 2001
+From: Tim Gover <tim.gover@raspberrypi.org>
+Date: Thu, 22 Oct 2020 15:30:55 +0100
+Subject: [PATCH] watchdog: bcm2835: Ignore params after the partition
+ number
+
+Use sscanf to extract the partition number and ignore extra parameters
+which are only relevant to other reboot notifiers.
+---
+ drivers/watchdog/bcm2835_wdt.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/watchdog/bcm2835_wdt.c
++++ b/drivers/watchdog/bcm2835_wdt.c
+@@ -126,10 +126,12 @@ static int bcm2835_restart(struct watchd
+ {
+ 	struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
+ 
+-	unsigned long long val;
++	unsigned long val;
+ 	u8 partition = 0;
+ 
+-	if (data && !kstrtoull(data, 0, &val) && val <= 63)
++	// Allow extra arguments separated by spaces after
++	// the partition number.
++	if (data && sscanf(data, "%lu", &val) && val < 63)
+ 		partition = val;
+ 
+ 	__bcm2835_restart(wdt, partition);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0370-firmware-raspberrypi-Add-support-for-tryonce-reboot-.patch b/target/linux/bcm27xx/patches-5.10/950-0370-firmware-raspberrypi-Add-support-for-tryonce-reboot-.patch
new file mode 100644
index 0000000000..ea48f5ac89
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0370-firmware-raspberrypi-Add-support-for-tryonce-reboot-.patch
@@ -0,0 +1,72 @@
+From e32f7ddc830c3388a68dfe34881bce32afded0b9 Mon Sep 17 00:00:00 2001
+From: Tim Gover <tim.gover@raspberrypi.com>
+Date: Tue, 20 Oct 2020 11:55:37 +0100
+Subject: [PATCH] firmware: raspberrypi: Add support for tryonce reboot
+ flag
+
+Define a new mailbox (SET_REBOOT_FLAGS) which may be used to
+pass optional flags to the Raspberry Pi firmware that changes
+the behaviour of the bootloader and firmware during a reboot.
+
+Currently this just defines the 'tryboot' flag which causes
+the firmware to load tryboot.txt instead config.txt. This
+alternate configuration file can be used to specify the
+path of an alternate firmware and kernels allowing a fallback
+mechanism to be implemented for OS upgrades.
+---
+ drivers/firmware/raspberrypi.c             | 25 ++++++++++++++++++++--
+ include/soc/bcm2835/raspberrypi-firmware.h |  2 ++
+ 2 files changed, 25 insertions(+), 2 deletions(-)
+
+--- a/drivers/firmware/raspberrypi.c
++++ b/drivers/firmware/raspberrypi.c
+@@ -191,6 +191,7 @@ static int rpi_firmware_notify_reboot(st
+ {
+ 	struct rpi_firmware *fw;
+ 	struct platform_device *pdev = g_pdev;
++	u32 reboot_flags = 0;
+ 
+ 	if (!pdev)
+ 		return 0;
+@@ -199,8 +200,28 @@ static int rpi_firmware_notify_reboot(st
+ 	if (!fw)
+ 		return 0;
+ 
+-	(void)rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_REBOOT,
+-				    0, 0);
++	// The partition id is the first parameter followed by zero or
++	// more flags separated by spaces indicating the reason for the reboot.
++	//
++	// 'tryboot': Sets a one-shot flag which is cleared upon reboot and
++	//            causes the tryboot.txt to be loaded instead of config.txt
++	//            by the bootloader and the start.elf firmware.
++	//
++	//            This is intended to allow automatic fallback to a known
++	//            good image if an OS/FW upgrade fails.
++	//
++	// N.B. The firmware mechanism for storing reboot flags may vary
++	// on different Raspberry Pi models.
++	if (data && strstr(data, " tryboot"))
++		reboot_flags |= 0x1;
++
++	// The mailbox might have been called earlier, directly via vcmailbox
++	// so only overwrite if reboot flags are passed to the reboot command.
++	if (reboot_flags)
++		(void)rpi_firmware_property(fw, RPI_FIRMWARE_SET_REBOOT_FLAGS,
++				&reboot_flags, sizeof(reboot_flags));
++
++	(void)rpi_firmware_property(fw, RPI_FIRMWARE_NOTIFY_REBOOT, NULL, 0);
+ 
+ 	return 0;
+ }
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -96,6 +96,8 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_GET_POE_HAT_VAL =                        0x00030049,
+ 	RPI_FIRMWARE_SET_POE_HAT_VAL =                        0x00030050,
+ 	RPI_FIRMWARE_NOTIFY_XHCI_RESET =                      0x00030058,
++	RPI_FIRMWARE_GET_REBOOT_FLAGS =                       0x00030064,
++	RPI_FIRMWARE_SET_REBOOT_FLAGS =                       0x00038064,
+ 
+ 	/* Dispmanx TAGS */
+ 	RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE =                   0x00040001,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0371-phy-broadcom-split-out-the-BCM54213PE-from-the-BCM54.patch b/target/linux/bcm27xx/patches-5.10/950-0371-phy-broadcom-split-out-the-BCM54213PE-from-the-BCM54.patch
new file mode 100644
index 0000000000..4fbb4d6594
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0371-phy-broadcom-split-out-the-BCM54213PE-from-the-BCM54.patch
@@ -0,0 +1,71 @@
+From 7b0e9b30aaf78bddfcb589be0686846076f23f62 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 14 May 2019 17:00:41 +0100
+Subject: [PATCH] phy: broadcom: split out the BCM54213PE from the
+ BCM54210E IDs
+
+The last nibble is a revision ID, and the 54213pe is a later rev
+than the 54210e. Running the 54210e setup code on a 54213pe results
+in a broken RGMII interface.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/net/phy/broadcom.c | 16 +++++++++++++---
+ include/linux/brcmphy.h    |  1 +
+ 2 files changed, 14 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/phy/broadcom.c
++++ b/drivers/net/phy/broadcom.c
+@@ -252,7 +252,8 @@ static void bcm54xx_adjust_rxrefclk(stru
+ 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
+ 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M &&
+ 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 &&
+-	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811)
++	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811 &&
++	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54213PE)
+ 		return;
+ 
+ 	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3);
+@@ -763,13 +764,21 @@ static struct phy_driver broadcom_driver
+ 	.config_intr	= bcm_phy_config_intr,
+ }, {
+ 	.phy_id		= PHY_ID_BCM54210E,
+-	.phy_id_mask	= 0xfffffff0,
++	.phy_id_mask	= 0xffffffff,
+ 	.name		= "Broadcom BCM54210E",
+ 	/* PHY_GBIT_FEATURES */
+ 	.config_init	= bcm54xx_config_init,
+ 	.ack_interrupt	= bcm_phy_ack_intr,
+ 	.config_intr	= bcm_phy_config_intr,
+ }, {
++	.phy_id		= PHY_ID_BCM54213PE,
++	.phy_id_mask	= 0xffffffff,
++	.name		= "Broadcom BCM54213PE",
++	/* PHY_GBIT_FEATURES */
++	.config_init	= bcm54xx_config_init,
++	.ack_interrupt	= bcm_phy_ack_intr,
++	.config_intr	= bcm_phy_config_intr,
++}, {
+ 	.phy_id		= PHY_ID_BCM5461,
+ 	.phy_id_mask	= 0xfffffff0,
+ 	.name		= "Broadcom BCM5461",
+@@ -924,7 +933,8 @@ module_phy_driver(broadcom_drivers);
+ static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
+ 	{ PHY_ID_BCM5411, 0xfffffff0 },
+ 	{ PHY_ID_BCM5421, 0xfffffff0 },
+-	{ PHY_ID_BCM54210E, 0xfffffff0 },
++	{ PHY_ID_BCM54210E, 0xffffffff },
++	{ PHY_ID_BCM54213PE, 0xffffffff },
+ 	{ PHY_ID_BCM5461, 0xfffffff0 },
+ 	{ PHY_ID_BCM54612E, 0xfffffff0 },
+ 	{ PHY_ID_BCM54616S, 0xfffffff0 },
+--- a/include/linux/brcmphy.h
++++ b/include/linux/brcmphy.h
+@@ -22,6 +22,7 @@
+ #define PHY_ID_BCM5411			0x00206070
+ #define PHY_ID_BCM5421			0x002060e0
+ #define PHY_ID_BCM54210E		0x600d84a0
++#define PHY_ID_BCM54213PE		0x600d84a2
+ #define PHY_ID_BCM5464			0x002060b0
+ #define PHY_ID_BCM5461			0x002060c0
+ #define PHY_ID_BCM54612E		0x03625e60
diff --git a/target/linux/bcm27xx/patches-5.10/950-0372-phy-broadcom-Add-bcm54213pe-configuration.patch b/target/linux/bcm27xx/patches-5.10/950-0372-phy-broadcom-Add-bcm54213pe-configuration.patch
new file mode 100644
index 0000000000..2b44e6d433
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0372-phy-broadcom-Add-bcm54213pe-configuration.patch
@@ -0,0 +1,34 @@
+From 066277e9437e41fea9c59455cc575b51a918af0c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 29 Oct 2020 14:10:56 +0000
+Subject: [PATCH] phy: broadcom: Add bcm54213pe configuration
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/net/phy/broadcom.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/net/phy/broadcom.c
++++ b/drivers/net/phy/broadcom.c
+@@ -82,6 +82,11 @@ static int bcm54210e_config_init(struct
+ 	return 0;
+ }
+ 
++static int bcm54213pe_config_init(struct phy_device *phydev)
++{
++	return bcm54210e_config_init(phydev);
++}
++
+ static int bcm54612e_config_init(struct phy_device *phydev)
+ {
+ 	int reg;
+@@ -357,6 +362,9 @@ static int bcm54xx_config_init(struct ph
+ 	case PHY_ID_BCM54616S:
+ 		err = bcm54616s_config_init(phydev);
+ 		break;
++	case PHY_ID_BCM54213PE:
++		err = bcm54213pe_config_init(phydev);
++		break;
+ 	case PHY_ID_BCM54810:
+ 		/* For BCM54810, we need to disable BroadR-Reach function */
+ 		val = bcm_phy_read_exp(phydev,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0373-overlays-Add-MAX31856-support-to-maxtherm-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0373-overlays-Add-MAX31856-support-to-maxtherm-overlay.patch
new file mode 100644
index 0000000000..e7e6ee0bd8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0373-overlays-Add-MAX31856-support-to-maxtherm-overlay.patch
@@ -0,0 +1,102 @@
+From 9444edfa8b5b18f8727b82853dd50345a400a316 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 22 Oct 2020 17:11:12 +0100
+Subject: [PATCH] overlays: Add MAX31856 support to maxtherm overlay
+
+Extend the maxtherm overlay with support for the MAX31856.
+The driver reads the thermocouple type from a property, which is much
+more civilised.
+
+See: https://github.com/raspberrypi/linux/issues/3915
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             | 18 ++++++++++++-----
+ .../boot/dts/overlays/maxtherm-overlay.dts    | 20 +++++++++++++++++++
+ 2 files changed, 33 insertions(+), 5 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1666,20 +1666,19 @@ Params: no-sdmode               Driver d
+ 
+ 
+ Name:   maxtherm
+-Info:   Configure a MAX6675 or MAX31855 thermocouple as an IIO device.
++Info:   Configure a MAX6675, MAX31855 or MAX31856 thermocouple as an IIO device.
+ 
+         For devices on spi1 or spi2, the interfaces should be enabled
+         with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
+         The overlay expects to disable the relevant spidev node, so also using
+         e.g. cs0_spidev=off is unnecessary.
+ 
+-        Note:   with the 5.7 kernel (and later) there will also be
+-                overlays for MAX31855E, MAX31855J, MAX31855K,
+-                MAX31885N, MAX31855R, MAX31855S and MAX31855T.
+-
+         Example:
+         MAX31855 on /dev/spidev0.0
+             dtoverlay=maxtherm,spi0-0,max31855
++        MAX31856 using a type J thermocouple on /dev/spidev2.1
++            dtoverlay=spi2-2cs
++            dtoverlay=maxtherm,spi2-1,max31856,type_j
+ 
+ Load:   dtoverlay=maxtherm,<param>=<val>
+ Params: spi<n>-<m>              Configure device at spi<n>, cs<m>
+@@ -1693,6 +1692,15 @@ Params: spi<n>-<m>              Configur
+         max31855r               Enable support for the MAX31855R
+         max31855s               Enable support for the MAX31855S
+         max31855t               Enable support for the MAX31855T
++        max31856                Enable support for the MAX31856 (with type K)
++        type_b                  Select a type B sensor for max31856
++        type_e                  Select a type E sensor for max31856
++        type_j                  Select a type J sensor for max31856
++        type_k                  Select a type K sensor for max31856
++        type_n                  Select a type N sensor for max31856
++        type_r                  Select a type R sensor for max31856
++        type_s                  Select a type S sensor for max31856
++        type_t                  Select a type T sensor for max31856
+ 
+ 
+ Name:   mbed-dac
+--- a/arch/arm/boot/dts/overlays/maxtherm-overlay.dts
++++ b/arch/arm/boot/dts/overlays/maxtherm-overlay.dts
+@@ -5,6 +5,8 @@
+ /dts-v1/;
+ /plugin/;
+ 
++#include <dt-bindings/iio/temperature/thermocouple.h>
++
+ / {
+ 	compatible = "brcm,bcm2835";
+ 
+@@ -128,6 +130,15 @@
+ 		};
+ 	};
+ 
++	fragment@16 {
++		target = <&max>;
++		__dormant__ {
++			compatible = "maxim,max31856";
++			spi-cpha;
++			thermocouple-type = <THERMOCOUPLE_TYPE_K>;
++		};
++	};
++
+ 	__overrides__ {
+ 		spi0-0 = <0>, "+0",
+ 			 <&maxfrag>,"target:0=",<&spi0>,
+@@ -162,5 +173,14 @@
+ 		max31855r = <0>,"+13";
+ 		max31855s = <0>,"+14";
+ 		max31855t = <0>,"+15";
++		max31856  = <0>,"+16";
++		type_b    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_B>;
++		type_e    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_E>;
++		type_j    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_J>;
++		type_k    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_K>;
++		type_n    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_N>;
++		type_r    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_R>;
++		type_s    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_S>;
++		type_t    = <&max>,"thermocouple-type:0=",<THERMOCOUPLE_TYPE_T>;
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0374-ARM-dts-Add-bcm2711-rpi-400.dts.patch b/target/linux/bcm27xx/patches-5.10/950-0374-ARM-dts-Add-bcm2711-rpi-400.dts.patch
new file mode 100644
index 0000000000..4b9a7e55a1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0374-ARM-dts-Add-bcm2711-rpi-400.dts.patch
@@ -0,0 +1,657 @@
+From 57e4984d7b342860d635155c13bf747d2c225e26 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 14 Jul 2020 14:21:33 +0100
+Subject: [PATCH] ARM: dts: Add bcm2711-rpi-400.dts
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/Makefile                    |   1 +
+ arch/arm/boot/dts/bcm2711-rpi-400.dts         | 615 ++++++++++++++++++
+ arch/arm64/boot/dts/broadcom/Makefile         |   1 +
+ .../boot/dts/broadcom/bcm2711-rpi-400.dts     |   1 +
+ 4 files changed, 618 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm2711-rpi-400.dts
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -12,6 +12,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2710-rpi-3-b.dtb \
+ 	bcm2710-rpi-3-b-plus.dtb \
+ 	bcm2711-rpi-4-b.dtb \
++	bcm2711-rpi-400.dtb \
+ 	bcm2710-rpi-cm3.dtb \
+ 	bcm2711-rpi-cm4.dtb
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -0,0 +1,615 @@
++// SPDX-License-Identifier: GPL-2.0
++/dts-v1/;
++#include "bcm2711.dtsi"
++#include "bcm2835-rpi.dtsi"
++
++#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
++
++/ {
++	compatible = "raspberrypi,400", "brcm,bcm2711";
++	model = "Raspberry Pi 400";
++
++	chosen {
++		/* 8250 auxiliary UART instead of pl011 */
++		stdout-path = "serial1:115200n8";
++	};
++
++	/* Will be filled by the bootloader */
++	memory@0 {
++		device_type = "memory";
++		reg = <0 0 0>;
++	};
++
++	aliases {
++		emmc2bus = &emmc2bus;
++		ethernet0 = &genet;
++		pcie0 = &pcie0;
++	};
++
++	leds {
++		act {
++			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++		};
++
++		pwr {
++			label = "PWR";
++			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++			default-state = "keep";
++			linux,default-trigger = "default-on";
++		};
++	};
++
++	wifi_pwrseq: wifi-pwrseq {
++		compatible = "mmc-pwrseq-simple";
++		reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
++	};
++
++	sd_io_1v8_reg: sd_io_1v8_reg {
++		compatible = "regulator-gpio";
++		regulator-name = "vdd-sd-io";
++		regulator-min-microvolt = <1800000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		regulator-always-on;
++		regulator-settling-time-us = <5000>;
++		gpios = <&expgpio 4 GPIO_ACTIVE_HIGH>;
++		states = <1800000 0x1
++			  3300000 0x0>;
++		status = "okay";
++	};
++
++	sd_vcc_reg: sd_vcc_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "vcc-sd";
++		regulator-min-microvolt = <3300000>;
++		regulator-max-microvolt = <3300000>;
++		regulator-boot-on;
++		enable-active-high;
++		gpio = <&expgpio 6 GPIO_ACTIVE_HIGH>;
++	};
++};
++
++&ddc0 {
++	status = "okay";
++};
++
++&ddc1 {
++	status = "okay";
++};
++
++&firmware {
++	firmware_clocks: clocks {
++		compatible = "raspberrypi,firmware-clocks";
++		#clock-cells = <1>;
++	};
++
++	expgpio: gpio {
++		compatible = "raspberrypi,firmware-gpio";
++		gpio-controller;
++		#gpio-cells = <2>;
++		gpio-line-names = "BT_ON",
++				  "WL_ON",
++				  "PWR_LED_OFF",
++				  "GLOBAL_RESET",
++				  "VDD_SD_IO_SEL",
++				  "CAM_GPIO",
++				  "SD_PWR_ON",
++				  "SD_OC_N";
++		status = "okay";
++	};
++
++	reset: reset {
++		compatible = "raspberrypi,firmware-reset";
++		#reset-cells = <1>;
++	};
++};
++
++&gpio {
++	/*
++	 * Parts taken from rpi_SCH_4b_4p0_reduced.pdf and
++	 * the official GPU firmware DT blob.
++	 *
++	 * Legend:
++	 * "FOO" = GPIO line named "FOO" on the schematic
++	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
++	 */
++	gpio-line-names = "ID_SDA",
++			  "ID_SCL",
++			  "SDA1",
++			  "SCL1",
++			  "GPIO_GCLK",
++			  "GPIO5",
++			  "GPIO6",
++			  "SPI_CE1_N",
++			  "SPI_CE0_N",
++			  "SPI_MISO",
++			  "SPI_MOSI",
++			  "SPI_SCLK",
++			  "GPIO12",
++			  "GPIO13",
++			  /* Serial port */
++			  "TXD1",
++			  "RXD1",
++			  "GPIO16",
++			  "GPIO17",
++			  "GPIO18",
++			  "GPIO19",
++			  "GPIO20",
++			  "GPIO21",
++			  "GPIO22",
++			  "GPIO23",
++			  "GPIO24",
++			  "GPIO25",
++			  "GPIO26",
++			  "GPIO27",
++			  "RGMII_MDIO",
++			  "RGMIO_MDC",
++			  /* Used by BT module */
++			  "CTS0",
++			  "RTS0",
++			  "TXD0",
++			  "RXD0",
++			  /* Used by Wifi */
++			  "SD1_CLK",
++			  "SD1_CMD",
++			  "SD1_DATA0",
++			  "SD1_DATA1",
++			  "SD1_DATA2",
++			  "SD1_DATA3",
++			  /* Shared with SPI flash */
++			  "PWM0_MISO",
++			  "PWM1_MOSI",
++			  "STATUS_LED_G_CLK",
++			  "SPIFLASH_CE_N",
++			  "SDA0",
++			  "SCL0",
++			  "RGMII_RXCLK",
++			  "RGMII_RXCTL",
++			  "RGMII_RXD0",
++			  "RGMII_RXD1",
++			  "RGMII_RXD2",
++			  "RGMII_RXD3",
++			  "RGMII_TXCLK",
++			  "RGMII_TXCTL",
++			  "RGMII_TXD0",
++			  "RGMII_TXD1",
++			  "RGMII_TXD2",
++			  "RGMII_TXD3";
++};
++
++&hdmi0 {
++	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
++	clock-names = "hdmi", "bvb", "audio", "cec";
++	status = "okay";
++};
++
++&hdmi1 {
++	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
++	clock-names = "hdmi", "bvb", "audio", "cec";
++	status = "okay";
++};
++
++&hvs {
++	clocks = <&firmware_clocks 4>;
++};
++
++&pixelvalve0 {
++	status = "okay";
++};
++
++&pixelvalve1 {
++	status = "okay";
++};
++
++&pixelvalve2 {
++	status = "okay";
++};
++
++&pixelvalve4 {
++	status = "okay";
++};
++
++&pwm1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
++	status = "okay";
++};
++
++/* SDHCI is used to control the SDIO for wireless */
++&sdhci {
++	#address-cells = <1>;
++	#size-cells = <0>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&emmc_gpio34>;
++	bus-width = <4>;
++	non-removable;
++	mmc-pwrseq = <&wifi_pwrseq>;
++	status = "okay";
++
++	brcmf: wifi@1 {
++		reg = <1>;
++		compatible = "brcm,bcm4329-fmac";
++	};
++};
++
++/* EMMC2 is used to drive the SD card */
++&emmc2 {
++	vqmmc-supply = <&sd_io_1v8_reg>;
++	vmmc-supply = <&sd_vcc_reg>;
++	broken-cd;
++	status = "okay";
++};
++
++&genet {
++	phy-handle = <&phy1>;
++	phy-mode = "rgmii-rxid";
++	status = "okay";
++};
++
++&genet_mdio {
++	phy1: ethernet-phy@1 {
++		/* No PHY interrupt */
++		reg = <0x1>;
++	};
++};
++
++&pcie0 {
++	pci@1,0 {
++		#address-cells = <3>;
++		#size-cells = <2>;
++		ranges;
++
++		reg = <0 0 0 0 0>;
++
++		usb@1,0 {
++			reg = <0x10000 0 0 0 0>;
++			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
++		};
++	};
++};
++
++/* uart0 communicates with the BT module */
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
++	uart-has-rtscts;
++	status = "okay";
++
++	bluetooth {
++		compatible = "brcm,bcm43438-bt";
++		max-speed = <2000000>;
++		shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
++	};
++};
++
++/* uart1 is mapped to the pin header */
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_gpio14>;
++	status = "okay";
++};
++
++&vchiq {
++	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
++};
++
++&vc4 {
++	status = "okay";
++};
++
++&vec {
++	status = "disabled";
++};
++
++// =============================================
++// Downstream rpi- changes
++
++#define BCM2711
++
++#include "bcm270x.dtsi"
++#include "bcm271x-rpi-bt.dtsi"
++
++/ {
++	soc {
++		/delete-node/ pixelvalve@7e807000;
++		/delete-node/ hdmi@7e902000;
++	};
++};
++
++#include "bcm2711-rpi.dtsi"
++#include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++
++/ {
++	chosen {
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++	};
++
++	aliases {
++		serial0 = &uart1;
++		serial1 = &uart0;
++		mmc0 = &emmc2;
++		mmc1 = &mmcnr;
++		mmc2 = &sdhost;
++		/delete-property/ i2c2;
++		i2c3 = &i2c3;
++		i2c4 = &i2c4;
++		i2c5 = &i2c5;
++		i2c6 = &i2c6;
++		/delete-property/ intc;
++	};
++
++	/delete-node/ wifi-pwrseq;
++};
++
++&mmcnr {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-0 = <&uart1_pins>;
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev@0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++
++	spidev1: spidev@1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <125000000>;
++	};
++};
++
++&gpio {
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi3_pins: spi3_pins {
++		brcm,pins = <1 2 3>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi3_cs_pins: spi3_cs_pins {
++		brcm,pins = <0 24>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi4_pins: spi4_pins {
++		brcm,pins = <5 6 7>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi4_cs_pins: spi4_cs_pins {
++		brcm,pins = <4 25>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi5_pins: spi5_pins {
++		brcm,pins = <13 14 15>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi5_cs_pins: spi5_cs_pins {
++		brcm,pins = <12 26>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	spi6_pins: spi6_pins {
++		brcm,pins = <19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++	};
++
++	spi6_cs_pins: spi6_cs_pins {
++		brcm,pins = <18 27>;
++		brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c3_pins: i2c3 {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c4_pins: i2c4 {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c5_pins: i2c5 {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2c6_pins: i2c6 {
++		brcm,pins = <22 23>;
++		brcm,function = <BCM2835_FSEL_ALT5>;
++		brcm,pull = <BCM2835_PUD_UP>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <BCM2835_FSEL_ALT0>;
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins =     <34 35 36 37 38 39>;
++		brcm,function = <BCM2835_FSEL_ALT3>; // alt3 = SD1
++		brcm,pull =     <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = "-"; // non-empty to keep btuart happy, //4 = 0
++				 // to fool pinctrl
++		brcm,function = <0>;
++		brcm,pull = <2>;
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <32 33>;
++		brcm,function = <BCM2835_FSEL_ALT3>;
++		brcm,pull = <0 2>;
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	uart2_pins: uart2_pins {
++		brcm,pins = <0 1>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart3_pins: uart3_pins {
++		brcm,pins = <4 5>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart4_pins: uart4_pins {
++		brcm,pins = <8 9>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++
++	uart5_pins: uart5_pins {
++		brcm,pins = <12 13>;
++		brcm,function = <BCM2835_FSEL_ALT4>;
++		brcm,pull = <0 2>;
++	};
++};
++
++&i2c0if {
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++/ {
++	__overrides__ {
++		/delete-property/ i2c2_baudrate;
++		/delete-property/ i2c2_iknowwhatimdoing;
++	};
++};
++
++// =============================================
++// Board specific stuff here
++
++/ {
++	power_ctrl: power_ctrl {
++		compatible = "gpio-poweroff";
++		gpios = <&expgpio 5 0>;
++		force;
++	};
++};
++
++&sdhost {
++	status = "disabled";
++};
++
++&phy1 {
++	led-modes = <0x00 0x08>; /* link/activity link */
++};
++
++&gpio {
++	audio_pins: audio_pins {
++		brcm,pins = <40 41>;
++		brcm,function = <4>;
++	};
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "default-on";
++		default-state = "on";
++		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
++	};
++
++	pwr_led: pwr {
++		label = "led1";
++		linux,default-trigger = "default-on";
++		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++	};
++};
++
++&pwm1 {
++	status = "disabled";
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++	brcm,disable-headphones = <1>;
++};
++
++/ {
++	__overrides__ {
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		pwr_led_gpio = <&pwr_led>,"gpios:4";
++		pwr_led_activelow = <&pwr_led>,"gpios:8";
++		pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
++
++		eth_led0 = <&phy1>,"led-modes:0";
++		eth_led1 = <&phy1>,"led-modes:4";
++
++		sd_poll_once = <&emmc2>, "non-removable?";
++		spi_dma4 = <&spi0>, "dmas:0=", <&dma40>,
++			   <&spi0>, "dmas:8=", <&dma40>;
++	};
++};
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rp
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb
+ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-cm4.dtb
+ 
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-400.dts
+@@ -0,0 +1 @@
++#include "../../../../arm/boot/dts/bcm2711-rpi-400.dts"
diff --git a/target/linux/bcm27xx/patches-5.10/950-0375-overlays-Deprecate-and-delete-the-sdtweak-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0375-overlays-Deprecate-and-delete-the-sdtweak-overlay.patch
new file mode 100644
index 0000000000..72dc8877ce
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0375-overlays-Deprecate-and-delete-the-sdtweak-overlay.patch
@@ -0,0 +1,112 @@
+From 068c8b508a0501de9bda9d6d9a8c4ddc06cf7ff8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 4 Nov 2020 11:25:02 +0000
+Subject: [PATCH] overlays: Deprecate and delete the sdtweak overlay
+
+The sdtweak overlay has been superseded by the board-specific
+sd_* parameters such as sd_poll_once, sd_overclock etc.
+
+For example, replace:
+
+    dtoverlay=sdtweak,poll_once
+
+with:
+
+    dtparam=sd_poll_once
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 -
+ arch/arm/boot/dts/overlays/README             | 27 +++----------------
+ arch/arm/boot/dts/overlays/overlay_map.dts    |  4 +++
+ .../arm/boot/dts/overlays/sdtweak-overlay.dts | 25 -----------------
+ 4 files changed, 8 insertions(+), 49 deletions(-)
+ delete mode 100644 arch/arm/boot/dts/overlays/sdtweak-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -158,7 +158,6 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	sc16is752-spi1.dtbo \
+ 	sdhost.dtbo \
+ 	sdio.dtbo \
+-	sdtweak.dtbo \
+ 	sh1106-spi.dtbo \
+ 	smi.dtbo \
+ 	smi-dev.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2409,29 +2409,10 @@ Load:   <Deprecated>
+ 
+ 
+ Name:   sdtweak
+-Info:   Tunes the bcm2835-sdhost SD/MMC driver
+-        N.B. This functionality is now available via the sd_* dtparams in the
+-        base DTB.
+-Load:   dtoverlay=sdtweak,<param>=<val>
+-Params: overclock_50            Clock (in MHz) to use when the MMC framework
+-                                requests 50MHz
+-
+-        force_pio               Disable DMA support (default off)
+-
+-        pio_limit               Number of blocks above which to use DMA
+-                                (default 1)
+-
+-        debug                   Enable debug output (default off)
+-
+-        poll_once               Looks for a card once after booting. Useful
+-                                for network booting scenarios to avoid the
+-                                overhead of continuous polling. N.B. Using
+-                                this option restricts the system to using a
+-                                single card per boot (or none at all).
+-                                (default off)
+-
+-        enable                  Set to off to completely disable the interface
+-                                (default on)
++Info:   This overlay is now deprecated. Use the sd_* dtparams in the
++        base DTB, e.g. "dtoverlay=sdtweak,poll_once" becomes
++        "dtparam=sd_poll_once".
++Load:   <Deprecated>
+ 
+ 
+ Name:   sh1106-spi
+--- a/arch/arm/boot/dts/overlays/overlay_map.dts
++++ b/arch/arm/boot/dts/overlays/overlay_map.dts
+@@ -61,6 +61,10 @@
+ 		deprecated = "use sdio,bus_width=1,gpios_22_25";
+ 	};
+ 
++	sdtweak {
++		deprecated = "use 'dtparam=sd_poll_once' etc.";
++	};
++
+ 	spi0-cs {
+ 		renamed = "spi0-2cs";
+ 	};
+--- a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
++++ /dev/null
+@@ -1,25 +0,0 @@
+-/dts-v1/;
+-/plugin/;
+-
+-/* Provide backwards compatible aliases for the old sdhost dtparams. */
+-
+-/{
+-	compatible = "brcm,bcm2835";
+-
+-	fragment@0 {
+-		target = <&sdhost>;
+-		frag0: __overlay__ {
+-			brcm,overclock-50 = <0>;
+-			brcm,pio-limit = <1>;
+-		};
+-	};
+-
+-	__overrides__ {
+-		overclock_50     = <&frag0>,"brcm,overclock-50:0";
+-		force_pio        = <&frag0>,"brcm,force-pio?";
+-		pio_limit        = <&frag0>,"brcm,pio-limit:0";
+-		debug            = <&frag0>,"brcm,debug?";
+-		enable           = <&frag0>,"status";
+-		poll_once        = <&frag0>,"non-removable?";
+-	};
+-};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0376-ARM-dts-bcm27xx-Remove-enable_headphones-setting.patch b/target/linux/bcm27xx/patches-5.10/950-0376-ARM-dts-bcm27xx-Remove-enable_headphones-setting.patch
new file mode 100644
index 0000000000..88dfcb39f8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0376-ARM-dts-bcm27xx-Remove-enable_headphones-setting.patch
@@ -0,0 +1,110 @@
+From 5ec30e3d930de9ca7bddbb8ef6b367c0bc89306f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 5 Nov 2020 11:39:35 +0000
+Subject: [PATCH] ARM: dts: bcm27xx: Remove enable_headphones setting
+
+The enable_headphones parameter of the snd_bcm2835 module is forced
+to 1 if enable_compat_alsa is 0, so setting them both on the kernel
+command line is pointless (and, in the case of Pi 400 and Pi Zeroes,
+confusing).
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2708-rpi-zero-w.dts   | 2 +-
+ arch/arm/boot/dts/bcm2708-rpi-zero.dts     | 2 +-
+ arch/arm/boot/dts/bcm270x.dtsi             | 2 +-
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts | 2 +-
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts      | 2 +-
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts      | 2 +-
+ arch/arm/boot/dts/bcm2711-rpi-400.dts      | 2 +-
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts      | 2 +-
+ 8 files changed, 8 insertions(+), 8 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+@@ -11,7 +11,7 @@
+ 	model = "Raspberry Pi Zero W";
+ 
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+@@ -10,7 +10,7 @@
+ 	model = "Raspberry Pi Zero";
+ 
+ 	chosen {
+-		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ };
+ 
+--- a/arch/arm/boot/dts/bcm270x.dtsi
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -3,7 +3,7 @@
+ 
+ / {
+ 	chosen {
+-		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 		/delete-property/ stdout-path;
+ 	};
+ 
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -12,7 +12,7 @@
+ 	model = "Raspberry Pi 3 Model B+";
+ 
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -12,7 +12,7 @@
+ 	model = "Raspberry Pi 3 Model B";
+ 
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -322,7 +322,7 @@
+ 
+ / {
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -322,7 +322,7 @@
+ 
+ / {
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -309,7 +309,7 @@
+ 
+ / {
+ 	chosen {
+-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_headphones=1";
++		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
+ 	};
+ 
+ 	aliases {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0377-vc4_hdmi-Report-that-3d-stereo-is-allowed.patch b/target/linux/bcm27xx/patches-5.10/950-0377-vc4_hdmi-Report-that-3d-stereo-is-allowed.patch
new file mode 100644
index 0000000000..1fdc3a0123
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0377-vc4_hdmi-Report-that-3d-stereo-is-allowed.patch
@@ -0,0 +1,20 @@
+From cf945bde1fe7db593bfaab44505f9cd5246c49b6 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 9 Nov 2020 19:49:32 +0000
+Subject: [PATCH] vc4_hdmi: Report that 3d/stereo is allowed
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -256,6 +256,7 @@ static int vc4_hdmi_connector_init(struc
+ 
+ 	connector->interlace_allowed = 1;
+ 	connector->doublescan_allowed = 0;
++	connector->stereo_allowed = 1;
+ 
+ 	drm_connector_attach_encoder(connector, encoder);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0378-PCI-brcmstb-Restore-initial-fundamental-reset.patch b/target/linux/bcm27xx/patches-5.10/950-0378-PCI-brcmstb-Restore-initial-fundamental-reset.patch
new file mode 100644
index 0000000000..f4b85020b5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0378-PCI-brcmstb-Restore-initial-fundamental-reset.patch
@@ -0,0 +1,35 @@
+From 92f08923793d755a2eb1bf4724c6b6764cfba071 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 11 Nov 2020 17:08:33 +0000
+Subject: [PATCH] PCI: brcmstb: Restore initial fundamental reset
+
+[1] replaced a single reset function with a pointer to one of two
+implementations, but also removed the call asserting the reset
+at the start of brcm_pcie_setup. Doing so breaks Raspberry Pis with
+VL805 XHCI controllers lacking dedicated SPI EEPROMs, which have been
+used for USB booting but then need to be reset so that the kernel
+can reconfigure them. The lack of a reset causes the firmware's loading
+of the EEPROM image to RAM to fail, breaking USB for the kernel.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?p=1758157#p1758157
+
+Fixes: 04356ac30771 ("PCI: brcmstb: Add bcm7278 PERST# support")
+
+[1] 04356ac30771 ("PCI: brcmstb: Add bcm7278 PERST# support")
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/pci/controller/pcie-brcmstb.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/pci/controller/pcie-brcmstb.c
++++ b/drivers/pci/controller/pcie-brcmstb.c
+@@ -871,6 +871,8 @@ static int brcm_pcie_setup(struct brcm_p
+ 
+ 	/* Reset the bridge */
+ 	pcie->bridge_sw_init_set(pcie, 1);
++	pcie->perst_set(pcie, 1);
++
+ 	usleep_range(100, 200);
+ 
+ 	/* Take the bridge out of reset */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0379-vc4-Clear-unused-infoframe-packet-RAM-registers.patch b/target/linux/bcm27xx/patches-5.10/950-0379-vc4-Clear-unused-infoframe-packet-RAM-registers.patch
new file mode 100644
index 0000000000..93ec210795
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0379-vc4-Clear-unused-infoframe-packet-RAM-registers.patch
@@ -0,0 +1,45 @@
+From cd097b7d08cef3c0e79f5d2ab2776c6c6b00a869 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 10 Nov 2020 20:04:08 +0000
+Subject: [PATCH] vc4: Clear unused infoframe packet RAM registers
+
+Using a hdmi analyser the bytes in packet ram
+registers beyond the length were visible in the
+infoframes and it flagged the checksum as invalid.
+
+Zeroing unused words of packet RAM avoids this
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -284,9 +284,11 @@ static void vc4_hdmi_write_infoframe(str
+ 	const struct vc4_hdmi_register *ram_packet_start =
+ 		&vc4_hdmi->variant->registers[HDMI_RAM_PACKET_START];
+ 	u32 packet_reg = ram_packet_start->offset + VC4_HDMI_PACKET_STRIDE * packet_id;
++	u32 packet_reg_next = ram_packet_start->offset +
++		VC4_HDMI_PACKET_STRIDE * (packet_id + 1);
+ 	void __iomem *base = __vc4_hdmi_get_field_base(vc4_hdmi,
+ 						       ram_packet_start->reg);
+-	uint8_t buffer[VC4_HDMI_PACKET_STRIDE];
++	uint8_t buffer[VC4_HDMI_PACKET_STRIDE] = {};
+ 	ssize_t len, i;
+ 	int ret;
+ 
+@@ -319,6 +321,13 @@ static void vc4_hdmi_write_infoframe(str
+ 		packet_reg += 4;
+ 	}
+ 
++	/*
++	 * clear remainder of packet ram as it's included in the
++	 * infoframe and triggers a checksum error on hdmi analyser
++	 */
++	for (; packet_reg < packet_reg_next; packet_reg += 4)
++		writel(0, base + packet_reg);
++
+ 	HDMI_WRITE(HDMI_RAM_PACKET_CONFIG,
+ 		   HDMI_READ(HDMI_RAM_PACKET_CONFIG) | BIT(packet_id));
+ 	ret = wait_for((HDMI_READ(HDMI_RAM_PACKET_STATUS) &
diff --git a/target/linux/bcm27xx/patches-5.10/950-0380-Input-edt-ft5x06-Poll-the-device-if-no-interrupt-is-.patch b/target/linux/bcm27xx/patches-5.10/950-0380-Input-edt-ft5x06-Poll-the-device-if-no-interrupt-is-.patch
new file mode 100644
index 0000000000..0b99d4bf9e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0380-Input-edt-ft5x06-Poll-the-device-if-no-interrupt-is-.patch
@@ -0,0 +1,98 @@
+From d7763e8128b7697f5521e08f097f455d20aab5be Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 6 Nov 2020 18:45:10 +0000
+Subject: [PATCH] Input: edt-ft5x06: Poll the device if no interrupt is
+ configured.
+
+Not all systems have the interrupt line wired up, so switch to
+polling the touchscreen off a timer if no interrupt line is
+configured.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/input/touchscreen/edt-ft5x06.c | 51 +++++++++++++++++++++-----
+ 1 file changed, 41 insertions(+), 10 deletions(-)
+
+--- a/drivers/input/touchscreen/edt-ft5x06.c
++++ b/drivers/input/touchscreen/edt-ft5x06.c
+@@ -69,6 +69,8 @@
+ #define EDT_RAW_DATA_RETRIES		100
+ #define EDT_RAW_DATA_DELAY		1000 /* usec */
+ 
++#define POLL_INTERVAL_MS		17	/* 17ms = 60fps */
++
+ enum edt_pmode {
+ 	EDT_PMODE_NOT_SUPPORTED,
+ 	EDT_PMODE_HIBERNATE,
+@@ -126,6 +128,9 @@ struct edt_ft5x06_ts_data {
+ 
+ 	struct edt_reg_addr reg_addr;
+ 	enum edt_ver version;
++
++	struct timer_list timer;
++	struct work_struct work_i2c_poll;
+ };
+ 
+ struct edt_i2c_chip_data {
+@@ -275,6 +280,22 @@ out:
+ 	return IRQ_HANDLED;
+ }
+ 
++static void edt_ft5x06_ts_irq_poll_timer(struct timer_list *t)
++{
++	struct edt_ft5x06_ts_data *tsdata = from_timer(tsdata, t, timer);
++
++	schedule_work(&tsdata->work_i2c_poll);
++	mod_timer(&tsdata->timer, jiffies + msecs_to_jiffies(POLL_INTERVAL_MS));
++}
++
++static void edt_ft5x06_ts_work_i2c_poll(struct work_struct *work)
++{
++	struct edt_ft5x06_ts_data *tsdata = container_of(work,
++			struct edt_ft5x06_ts_data, work_i2c_poll);
++
++	edt_ft5x06_ts_isr(0, tsdata);
++}
++
+ static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,
+ 				     u8 addr, u8 value)
+ {
+@@ -1221,17 +1242,27 @@ static int edt_ft5x06_ts_probe(struct i2
+ 
+ 	i2c_set_clientdata(client, tsdata);
+ 
+-	irq_flags = irq_get_trigger_type(client->irq);
+-	if (irq_flags == IRQF_TRIGGER_NONE)
+-		irq_flags = IRQF_TRIGGER_FALLING;
+-	irq_flags |= IRQF_ONESHOT;
+-
+-	error = devm_request_threaded_irq(&client->dev, client->irq,
+-					NULL, edt_ft5x06_ts_isr, irq_flags,
+-					client->name, tsdata);
+-	if (error) {
+-		dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
+-		return error;
++	if (client->irq) {
++		irq_flags = irq_get_trigger_type(client->irq);
++		if (irq_flags == IRQF_TRIGGER_NONE)
++			irq_flags = IRQF_TRIGGER_FALLING;
++		irq_flags |= IRQF_ONESHOT;
++
++		error = devm_request_threaded_irq(&client->dev, client->irq,
++						  NULL, edt_ft5x06_ts_isr,
++						  irq_flags, client->name,
++						  tsdata);
++		if (error) {
++			dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
++			return error;
++		}
++	} else {
++		INIT_WORK(&tsdata->work_i2c_poll,
++			  edt_ft5x06_ts_work_i2c_poll);
++		timer_setup(&tsdata->timer, edt_ft5x06_ts_irq_poll_timer, 0);
++		tsdata->timer.expires = jiffies +
++					msecs_to_jiffies(POLL_INTERVAL_MS);
++		add_timer(&tsdata->timer);
+ 	}
+ 
+ 	error = devm_device_add_group(&client->dev, &edt_ft5x06_attr_group);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch b/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch
new file mode 100644
index 0000000000..238b9ae2f6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0381-dtoverlays-Add-an-overlay-for-the-EDT-FT5406-touchsc.patch
@@ -0,0 +1,96 @@
+From e7972981794db2cfa349aa5d34171f83d4ffe830 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 6 Nov 2020 18:52:25 +0000
+Subject: [PATCH] dtoverlays: Add an overlay for the EDT FT5406
+ touchscreen
+
+This touchscreen controller is used by the 7" DSI panel, and
+this overlay configures it for when it is NOT being polled by
+the firmware.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 14 +++++++
+ .../boot/dts/overlays/edt-ft5406-overlay.dts  | 42 +++++++++++++++++++
+ 3 files changed, 57 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -40,6 +40,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	draws.dtbo \
+ 	dwc-otg.dtbo \
+ 	dwc2.dtbo \
++	edt-ft5406.dtbo \
+ 	enc28j60.dtbo \
+ 	enc28j60-spi2.dtbo \
+ 	exc3000.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -733,6 +733,20 @@ Params: dr_mode                 Dual rol
+ [ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
+ 
+ 
++Name:   edt-ft5406
++Info:   Overlay for the EDT FT5406 touchscreen on the CSI/DSI I2C interface.
++        This works with the Raspberry Pi 7" touchscreen when not being polled
++        by the firmware.
++        You MUST use either "disable_touchscreen=1" or "ignore_lcd=1" in
++        config.txt to stop the firmware polling the touchscreen.
++Load:   dtoverlay=edt-ft5406,<param>=<val>
++Params: sizex                   Touchscreen size x (default 800)
++        sizey                   Touchscreen size y (default 480)
++        invx                    Touchscreen inverted x axis
++        invy                    Touchscreen inverted y axis
++        swapxy                  Touchscreen swapped x y axis
++
++
+ Name:   enc28j60
+ Info:   Overlay for the Microchip ENC28J60 Ethernet Controller on SPI0
+ Load:   dtoverlay=enc28j60,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/edt-ft5406-overlay.dts
+@@ -0,0 +1,42 @@
++/*
++ * Device Tree overlay for RaspberryPi 7" Touchscreen panel
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++			ft5406: ts@38 {
++				compatible = "edt,edt-ft5406";
++				reg = <0x38>;
++
++				touchscreen-size-x = < 800 >;
++				touchscreen-size-y = < 480 >;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		sizex = <&ft5406>,"touchscreen-size-x:0";
++		sizey = <&ft5406>,"touchscreen-size-y:0";
++		invx = <&ft5406>,"touchscreen-inverted-x?";
++		invy = <&ft5406>,"touchscreen-inverted-y?";
++		swapxy = <&ft5406>,"touchscreen-swapped-x-y?";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0382-drm-panel-raspberrypi-touchscreen-Use-independent-I2.patch b/target/linux/bcm27xx/patches-5.10/950-0382-drm-panel-raspberrypi-touchscreen-Use-independent-I2.patch
new file mode 100644
index 0000000000..57aabc7e87
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0382-drm-panel-raspberrypi-touchscreen-Use-independent-I2.patch
@@ -0,0 +1,58 @@
+From 3ad3a680ece56c7134d9500a0413b4f9259c07d8 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 23 Apr 2020 10:17:18 +0100
+Subject: [PATCH] drm/panel/raspberrypi-touchscreen: Use independent
+ I2C actions with delay.
+
+We now have the hardware I2C controller pinmuxed to the drive the
+display I2C, but this controller does not support clock stretching.
+The Atmel micro-controller in the panel requires clock stretching
+to allow it to prepare any data to be read.
+
+Split the rpi_touchscreen_i2c_read into two independent transactions with
+a delay between them for the Atmel to prepare the data.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../drm/panel/panel-raspberrypi-touchscreen.c | 30 ++++++++++++++++++-
+ 1 file changed, 29 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
++++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+@@ -219,7 +219,35 @@ static struct rpi_touchscreen *panel_to_
+ 
+ static int rpi_touchscreen_i2c_read(struct rpi_touchscreen *ts, u8 reg)
+ {
+-	return i2c_smbus_read_byte_data(ts->i2c, reg);
++	struct i2c_client *client = ts->i2c;
++	struct i2c_msg msgs[1];
++	u8 addr_buf[1] = { reg };
++	u8 data_buf[1] = { 0, };
++	int ret;
++
++	/* Write register address */
++	msgs[0].addr = client->addr;
++	msgs[0].flags = 0;
++	msgs[0].len = ARRAY_SIZE(addr_buf);
++	msgs[0].buf = addr_buf;
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++	if (ret != ARRAY_SIZE(msgs))
++		return -EIO;
++
++	usleep_range(100, 300);
++
++	/* Read data from register */
++	msgs[0].addr = client->addr;
++	msgs[0].flags = I2C_M_RD;
++	msgs[0].len = 1;
++	msgs[0].buf = data_buf;
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++	if (ret != ARRAY_SIZE(msgs))
++		return -EIO;
++
++	return data_buf[0];
+ }
+ 
+ static void rpi_touchscreen_i2c_write(struct rpi_touchscreen *ts,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0383-drm-panel-raspberrypi-ts-Insert-delay-before-polling.patch b/target/linux/bcm27xx/patches-5.10/950-0383-drm-panel-raspberrypi-ts-Insert-delay-before-polling.patch
new file mode 100644
index 0000000000..ce838a6114
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0383-drm-panel-raspberrypi-ts-Insert-delay-before-polling.patch
@@ -0,0 +1,26 @@
+From 01cb60004018afba6e2b60149e4adbbf9e87d90b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 10 Nov 2020 11:21:56 +0000
+Subject: [PATCH] drm/panel/raspberrypi-ts: Insert delay before polling
+ for startup state
+
+In switching to the hardware I2C controller there is an issue
+where we seem to not get back the correct state from the Pi
+touchscreen.
+Insert a delay before polling to avoid this condition.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
++++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+@@ -299,6 +299,7 @@ static int rpi_touchscreen_enable(struct
+ 	int i;
+ 
+ 	rpi_touchscreen_i2c_write(ts, REG_POWERON, 1);
++	usleep_range(20000, 25000);
+ 	/* Wait for nPWRDWN to go low to indicate poweron is done. */
+ 	for (i = 0; i < 100; i++) {
+ 		if (rpi_touchscreen_i2c_read(ts, REG_PORTB) & 1)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0384-Add-devicetree-support-for-RaspberryPi-7-panel-over-.patch b/target/linux/bcm27xx/patches-5.10/950-0384-Add-devicetree-support-for-RaspberryPi-7-panel-over-.patch
new file mode 100644
index 0000000000..cc4e2039da
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0384-Add-devicetree-support-for-RaspberryPi-7-panel-over-.patch
@@ -0,0 +1,100 @@
+From 818fff9eed1c36f404f0556a0b239b43799a094b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 10 Nov 2020 17:49:35 +0000
+Subject: [PATCH] Add devicetree support for RaspberryPi 7" panel over
+ DSI I2C
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  8 +++
+ .../overlays/vc4-kms-dsi-7inch-overlay.dts    | 56 +++++++++++++++++++
+ 3 files changed, 65 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-7inch-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -201,6 +201,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	upstream.dtbo \
+ 	upstream-pi4.dtbo \
+ 	vc4-fkms-v3d.dtbo \
++	vc4-kms-dsi-7inch.dtbo \
+ 	vc4-kms-kippah-7inch.dtbo \
+ 	vc4-kms-v3d.dtbo \
+ 	vc4-kms-v3d-pi4.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2935,6 +2935,14 @@ Params: cma-512                 CMA is 5
+         cma-default             Use upstream's default value
+ 
+ 
++Name:   vc4-kms-dsi-7inch
++Info:   Enable the Raspberry Pi DSI 7" screen.
++        Use edt-ft5406 for the touchscreen element.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-dsi-7inch
++Params: <None>
++
++
+ Name:   vc4-kms-kippah-7inch
+ Info:   Enable the Adafruit DPI Kippah with the 7" Ontat panel attached.
+         Requires vc4-kms-v3d to be loaded.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-7inch-overlay.dts
+@@ -0,0 +1,56 @@
++/*
++ * Device Tree overlay for RaspberryPi 7" Touchscreen panel
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&dsi1>;
++		__overlay__ {
++			#address-cells = <1>; size-cells = <0>;
++			status = "okay";
++			port {
++				dsi_out_port: endpoint {
++					remote-endpoint = <&panel_dsi_port>;
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++			lcd@45 {
++				compatible = "raspberrypi,7inch-touchscreen-panel";
++				reg = <0x45>;
++				port {
++					panel_dsi_port: endpoint {
++						remote-endpoint = <&dsi_out_port>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0385-mcp251xfd-add-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0385-mcp251xfd-add-overlay.patch
new file mode 100644
index 0000000000..8d5d1927fc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0385-mcp251xfd-add-overlay.patch
@@ -0,0 +1,283 @@
+From 6a028ad5aed9e68280c9ccf6d4ca5370fcfdb4a2 Mon Sep 17 00:00:00 2001
+From: Marc Kleine-Budde <mkl@pengutronix.de>
+Date: Fri, 15 Nov 2019 00:54:07 +0100
+Subject: [PATCH] mcp251xfd: add overlay
+
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+---
+ arch/arm/boot/dts/overlays/Makefile           |   1 +
+ arch/arm/boot/dts/overlays/README             |  22 ++
+ .../boot/dts/overlays/mcp251xfd-overlay.dts   | 226 ++++++++++++++++++
+ 3 files changed, 249 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/mcp251xfd-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -108,6 +108,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	mcp23s17.dtbo \
+ 	mcp2515-can0.dtbo \
+ 	mcp2515-can1.dtbo \
++	mcp251xfd.dtbo \
+ 	mcp3008.dtbo \
+ 	mcp3202.dtbo \
+ 	mcp342x.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1779,6 +1779,28 @@ Params: oscillator              Clock fr
+         interrupt               GPIO for interrupt signal
+ 
+ 
++Name:   mcp251xfd
++Info:   Configures the MCP251XFD CAN controller family
++        For devices on spi1 or spi2, the interfaces should be enabled
++        with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
++Load:   dtoverlay=mcp251xfd,<param>=<val>
++Params: spi<n>-<m>              Configure device at spi<n>, cs<m>
++                                (boolean, required)
++
++        oscillator              Clock frequency for the CAN controller (Hz)
++
++        speed                   Maximum SPI frequence (Hz)
++
++        interrupt               GPIO for interrupt signal
++
++        rx_interrupt            GPIO for RX interrupt signal (nINT1) (optional)
++
++        xceiver_enable          GPIO for CAN transceiver enable (optional)
++
++        xceiver_active_high     specifiy if CAN transceiver enable pin is
++                                active high (optional, default: active low)
++
++
+ Name:   mcp3008
+ Info:   Configures MCP3008 A/D converters
+         For devices on spi1 or spi2, the interfaces should be enabled
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/mcp251xfd-overlay.dts
+@@ -0,0 +1,226 @@
++// SPDX-License-Identifier: (GPL-2.0 OR MIT)
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&spidev0>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@1 {
++		target = <&spidev1>;
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target-path = "spi1/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@3 {
++		target-path = "spi1/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@4 {
++		target-path = "spi1/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@5 {
++		target-path = "spi2/spidev@0";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@6 {
++		target-path = "spi2/spidev@1";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@7 {
++		target-path = "spi2/spidev@2";
++		__dormant__ {
++			status = "disabled";
++		};
++	};
++
++	fragment@8 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins: mcp251xfd_pins {
++				brcm,pins = <25>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc: mcp251xfd-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++
++	mcp251xfd_frag: fragment@10 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp251xfd: mcp251xfd@0 {
++				compatible = "microchip,mcp251xfd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc>;
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&mcp251xfd>;
++		mcp251xfd_rx_int_gpios: __dormant__ {
++			microchip,rx-int-gpios = <&gpio 255 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	fragment@12 {
++		target = <&gpio>;
++		__dormant__ {
++			mcp251xfd_xceiver_pins: mcp251xfd_xceiver_pins {
++				brcm,pins = <255>;
++				brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++			};
++		};
++	};
++
++	fragment@13 {
++		target-path = "/";
++		__dormant__ {
++			reg_mcp251xfd_xceiver: reg_mcp251xfd_xceiver {
++				compatible = "regulator-fixed";
++				regulator-name = "mcp251xfd_xceiver";
++				regulator-min-microvolt = <3300000>;
++				regulator-max-microvolt = <3300000>;
++				gpio = <&gpio 4 GPIO_ACTIVE_HIGH>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_xceiver_pins>;
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&mcp251xfd>;
++		__dormant__ {
++			xceiver-supply = <&reg_mcp251xfd_xceiver>;
++		};
++	};
++
++	__overrides__ {
++		spi0-0 = <0>, "+0",
++			<&mcp251xfd_frag>, "target:0=", <&spi0>,
++			<&mcp251xfd>, "reg:0=0",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi0_0_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi0-0-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi0_0_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi0-0-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi0-0-xceiver";
++		spi0-1 = <0>, "+1",
++			<&mcp251xfd_frag>, "target:0=", <&spi0>,
++			<&mcp251xfd>, "reg:0=1",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi0_1_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi0-1-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi0_1_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi0-1-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi0-1-xceiver";
++		spi1-0 = <0>, "+2",
++			<&mcp251xfd_frag>, "target:0=", <&spi1>,
++			<&mcp251xfd>, "reg:0=0",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi1_0_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi1-0-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi1_0_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi1-0-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi1-0-xceiver";
++		spi1-1 = <0>, "+3",
++			<&mcp251xfd_frag>, "target:0=", <&spi1>,
++			<&mcp251xfd>, "reg:0=1",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi1_1_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi1-1-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi1_1_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi1-1-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi1-1-xceiver";
++		spi1-2 = <0>, "+4",
++			<&mcp251xfd_frag>, "target:0=", <&spi1>,
++			<&mcp251xfd>, "reg:0=2",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi1_2_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi1-2-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi1_2_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi1-2-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi1-2-xceiver";
++		spi2-0 = <0>, "+5",
++			<&mcp251xfd_frag>, "target:0=", <&spi2>,
++			<&mcp251xfd>, "reg:0=0",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi2_0_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi2-0-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi2_0_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi2-0-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi2-0-xceiver";
++		spi2-1 = <0>, "+6",
++			<&mcp251xfd_frag>, "target:0=", <&spi2>,
++			<&mcp251xfd>, "reg:0=1",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi2_1_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi2-1-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi2_1_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi2-1-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi2-1-xceiver";
++		spi2-2 = <0>, "+7",
++			<&mcp251xfd_frag>, "target:0=", <&spi2>,
++			<&mcp251xfd>, "reg:0=2",
++			<&mcp251xfd_pins>, "name=mcp251xfd_spi2_2_pins",
++			<&clk_mcp251xfd_osc>, "name=mcp251xfd-spi2-2-osc",
++			<&mcp251xfd_xceiver_pins>, "name=mcp251xfd_spi2_2_xceiver_pins",
++			<&reg_mcp251xfd_xceiver>, "name=reg-mcp251xfd-spi2-2-xceiver",
++			<&reg_mcp251xfd_xceiver>, "regulator-name=mcp251xfd-spi2-2-xceiver";
++		oscillator = <&clk_mcp251xfd_osc>, "clock-frequency:0";
++		speed = <&mcp251xfd>, "spi-max-frequency:0";
++		interrupt = <&mcp251xfd_pins>, "brcm,pins:0",
++			<&mcp251xfd>, "interrupts:0";
++		rx_interrupt = <0>, "+11",
++			<&mcp251xfd_pins>, "brcm,pins:4",
++			<&mcp251xfd_rx_int_gpios>, "microchip,rx-int-gpios:4";
++		xceiver_enable = <0>, "+12+13+14",
++			<&mcp251xfd_xceiver_pins>, "brcm,pins:0",
++			<&reg_mcp251xfd_xceiver>, "gpio:4";
++		xceiver_active_high = <&reg_mcp251xfd_xceiver>, "enable-active-high?";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0386-media-ov9281-Add-1280x720-and-640x480-modes.patch b/target/linux/bcm27xx/patches-5.10/950-0386-media-ov9281-Add-1280x720-and-640x480-modes.patch
new file mode 100644
index 0000000000..83e2a74b7a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0386-media-ov9281-Add-1280x720-and-640x480-modes.patch
@@ -0,0 +1,209 @@
+From dd40e2ef1f8e6cded376b928451740a828e5e6ef Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Sun, 22 Nov 2020 11:01:08 +0000
+Subject: [PATCH] media: ov9281: Add 1280x720 and 640x480 modes
+
+Breaks out common register set and adds the different registers
+for 1280x720 (cropped) and 640x480 (skipped) modes
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 146 ++++++++++++++++++++++++++++++++-----
+ 1 file changed, 126 insertions(+), 20 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -139,7 +139,7 @@ struct ov9281 {
+  * max_framerate 120fps for 10 bit, 144fps for 8 bit.
+  * mipi_datarate per lane 800Mbps
+  */
+-static const struct regval ov9281_1280x800_regs[] = {
++static const struct regval ov9281_common_regs[] = {
+ 	{0x0103, 0x01},
+ 	{0x0302, 0x32},
+ 	{0x030e, 0x02},
+@@ -177,13 +177,35 @@ static const struct regval ov9281_1280x8
+ 	{0x372d, 0x22},
+ 	{0x3731, 0x80},
+ 	{0x3732, 0x30},
+-	{0x3778, 0x00},
+ 	{0x377d, 0x22},
+ 	{0x3788, 0x02},
+ 	{0x3789, 0xa4},
+ 	{0x378a, 0x00},
+ 	{0x378b, 0x4a},
+ 	{0x3799, 0x20},
++	{0x3881, 0x42},
++	{0x38b1, 0x00},
++	{0x3920, 0xff},
++	{0x4010, 0x40},
++	{0x4043, 0x40},
++	{0x4307, 0x30},
++	{0x4317, 0x00},
++	{0x4501, 0x00},
++	{0x450a, 0x08},
++	{0x4601, 0x04},
++	{0x470f, 0x00},
++	{0x4f07, 0x00},
++	{0x4800, 0x00},
++	{0x5000, 0x9f},
++	{0x5001, 0x00},
++	{0x5e00, 0x00},
++	{0x5d00, 0x07},
++	{0x5d01, 0x00},
++	{REG_NULL, 0x00},
++};
++
++static const struct regval ov9281_1280x800_regs[] = {
++	{0x3778, 0x10},
+ 	{0x3800, 0x00},
+ 	{0x3801, 0x00},
+ 	{0x3802, 0x00},
+@@ -208,31 +230,83 @@ static const struct regval ov9281_1280x8
+ 	{0x3815, 0x11},
+ 	{0x3820, 0x40},
+ 	{0x3821, 0x00},
+-	{0x3881, 0x42},
+-	{0x38b1, 0x00},
+-	{0x3920, 0xff},
+ 	{0x4003, 0x40},
+ 	{0x4008, 0x04},
+ 	{0x4009, 0x0b},
+ 	{0x400c, 0x00},
+ 	{0x400d, 0x07},
+-	{0x4010, 0x40},
+-	{0x4043, 0x40},
+-	{0x4307, 0x30},
+-	{0x4317, 0x00},
+-	{0x4501, 0x00},
+ 	{0x4507, 0x00},
+ 	{0x4509, 0x00},
+-	{0x450a, 0x08},
+-	{0x4601, 0x04},
+-	{0x470f, 0x00},
+-	{0x4f07, 0x00},
+-	{0x4800, 0x00},
+-	{0x5000, 0x9f},
+-	{0x5001, 0x00},
+-	{0x5e00, 0x00},
+-	{0x5d00, 0x07},
+-	{0x5d01, 0x00},
++	{REG_NULL, 0x00},
++};
++
++static const struct regval ov9281_1280x720_regs[] = {
++	{0x3778, 0x10},
++	{0x3800, 0x00},
++	{0x3801, 0x00},
++	{0x3802, 0x00},
++	{0x3803, 0x28},
++	{0x3804, 0x05},
++	{0x3805, 0x0f},
++	{0x3806, 0x03},
++	{0x3807, 0x07},
++	{0x3808, 0x05},
++	{0x3809, 0x00},
++	{0x380a, 0x02},
++	{0x380b, 0xd0},
++	{0x380c, 0x02},
++	{0x380d, 0xd8},
++	{0x380e, 0x03},
++	{0x380f, 0x8e},
++	{0x3810, 0x00},
++	{0x3811, 0x08},
++	{0x3812, 0x00},
++	{0x3813, 0x08},
++	{0x3814, 0x11},
++	{0x3815, 0x11},
++	{0x3820, 0x40},
++	{0x3821, 0x00},
++	{0x4003, 0x40},
++	{0x4008, 0x04},
++	{0x4009, 0x0b},
++	{0x400c, 0x00},
++	{0x400d, 0x07},
++	{0x4507, 0x00},
++	{0x4509, 0x00},
++	{REG_NULL, 0x00},
++};
++
++static const struct regval ov9281_640x400_regs[] = {
++	{0x3800, 0x00},
++	{0x3801, 0x00},
++	{0x3802, 0x00},
++	{0x3803, 0x00},
++	{0x3804, 0x05},
++	{0x3805, 0x0f},
++	{0x3806, 0x03},
++	{0x3807, 0x2f},
++	{0x3808, 0x02},
++	{0x3809, 0x80},
++	{0x380a, 0x01},
++	{0x380b, 0x90},
++	{0x380c, 0x02},
++	{0x380d, 0xd8},
++	{0x380e, 0x02},
++	{0x380f, 0x08},
++	{0x3810, 0x00},
++	{0x3811, 0x04},
++	{0x3812, 0x00},
++	{0x3813, 0x04},
++	{0x3814, 0x31},
++	{0x3815, 0x22},
++	{0x3820, 0x60},
++	{0x3821, 0x01},
++	{0x4008, 0x02},
++	{0x4009, 0x05},
++	{0x400c, 0x00},
++	{0x400d, 0x03},
++	{0x4507, 0x03},
++	{0x4509, 0x80},
+ 	{REG_NULL, 0x00},
+ };
+ 
+@@ -263,6 +337,34 @@ static const struct ov9281_mode supporte
+ 		},
+ 		.reg_list = ov9281_1280x800_regs,
+ 	},
++	{
++		.width = 1280,
++		.height = 720,
++		.exp_def = 0x0320,
++		.hts_def = 0x05b0,
++		.vts_def = 761,
++		.crop = {
++			.left = 0,
++			.top = 40,
++			.width = 1280,
++			.height = 720
++		},
++		.reg_list = ov9281_1280x720_regs,
++	},
++	{
++		.width = 640,
++		.height = 400,
++		.exp_def = 0x0320,
++		.hts_def = 0x05b0,
++		.vts_def = 421,
++		.crop = {
++			.left = 0,
++			.top = 0,
++			.width = 1280,
++			.height = 800
++		},
++		.reg_list = ov9281_640x400_regs,
++	},
+ };
+ 
+ static const s64 link_freq_menu_items[] = {
+@@ -567,6 +669,10 @@ static int __ov9281_start_stream(struct
+ {
+ 	int ret;
+ 
++	ret = ov9281_write_array(ov9281->client, ov9281_common_regs);
++	if (ret)
++		return ret;
++
+ 	ret = ov9281_write_array(ov9281->client, ov9281->cur_mode->reg_list);
+ 	if (ret)
+ 		return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0387-dt-bindings-Add-compatible-for-BCM2711-DSI1.patch b/target/linux/bcm27xx/patches-5.10/950-0387-dt-bindings-Add-compatible-for-BCM2711-DSI1.patch
new file mode 100644
index 0000000000..7b7741f9ac
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0387-dt-bindings-Add-compatible-for-BCM2711-DSI1.patch
@@ -0,0 +1,23 @@
+From 3acfacedd3d8f627d40bfaaf1a8312fe69823572 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 12 Nov 2020 17:01:52 +0000
+Subject: [PATCH] dt-bindings: Add compatible for BCM2711 DSI1
+
+DSI1 on BCM2711 doesn't require the DMA workaround that is used
+on BCM2835/6/7, therefore it needs a new compatible string.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-dsi0.yaml
+@@ -20,6 +20,7 @@ properties:
+     enum:
+       - brcm,bcm2835-dsi0
+       - brcm,bcm2835-dsi1
++      - brcm,bcm2711-dsi1
+ 
+   reg:
+     maxItems: 1
diff --git a/target/linux/bcm27xx/patches-5.10/950-0388-dt-Use-compatible-string-for-BCM2711-DSI1.patch b/target/linux/bcm27xx/patches-5.10/950-0388-dt-Use-compatible-string-for-BCM2711-DSI1.patch
new file mode 100644
index 0000000000..635718e01d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0388-dt-Use-compatible-string-for-BCM2711-DSI1.patch
@@ -0,0 +1,23 @@
+From 3fa54d7688eaea066f1478ed6bc6051ee3b11f2b Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 12 Nov 2020 18:42:30 +0000
+Subject: [PATCH] dt: Use compatible string for BCM2711 DSI1
+
+Updates the compatible string for DSI1 on BCM2711 to
+differentiate it from BCM2835.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -554,6 +554,7 @@
+ 
+ &dsi1 {
+ 	interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
++	compatible = "brcm,bcm2711-dsi1";
+ };
+ 
+ &gpio {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0389-drm-vc4-Correct-DSI-register-definition.patch b/target/linux/bcm27xx/patches-5.10/950-0389-drm-vc4-Correct-DSI-register-definition.patch
new file mode 100644
index 0000000000..f8a2a69354
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0389-drm-vc4-Correct-DSI-register-definition.patch
@@ -0,0 +1,34 @@
+From 264515dcb2a318072530a2171c084dc207006399 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 30 Nov 2020 16:16:03 +0000
+Subject: [PATCH] drm/vc4: Correct DSI register definition
+
+The DSI1_PHY_AFEC0_PD_DLANE1 and DSI1_PHY_AFEC0_PD_DLANE3 register
+definitions were swapped, so trying to use more than a single data
+lane failed as lane 1 would get powered down.
+(In theory a 4 lane device would work as all lanes would remain
+powered).
+
+Correct the definitions.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -306,11 +306,11 @@
+ # define DSI0_PHY_AFEC0_RESET			BIT(11)
+ # define DSI1_PHY_AFEC0_PD_BG			BIT(11)
+ # define DSI0_PHY_AFEC0_PD			BIT(10)
+-# define DSI1_PHY_AFEC0_PD_DLANE3		BIT(10)
++# define DSI1_PHY_AFEC0_PD_DLANE1		BIT(10)
+ # define DSI0_PHY_AFEC0_PD_BG			BIT(9)
+ # define DSI1_PHY_AFEC0_PD_DLANE2		BIT(9)
+ # define DSI0_PHY_AFEC0_PD_DLANE1		BIT(8)
+-# define DSI1_PHY_AFEC0_PD_DLANE1		BIT(8)
++# define DSI1_PHY_AFEC0_PD_DLANE3		BIT(8)
+ # define DSI_PHY_AFEC0_PTATADJ_MASK		VC4_MASK(7, 4)
+ # define DSI_PHY_AFEC0_PTATADJ_SHIFT		4
+ # define DSI_PHY_AFEC0_CTATADJ_MASK		VC4_MASK(3, 0)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0390-Allo-boss2-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0390-Allo-boss2-driver.patch
new file mode 100644
index 0000000000..b07f7c9f2d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0390-Allo-boss2-driver.patch
@@ -0,0 +1,1185 @@
+From 5eba3bb8b48060a5ddf143c1aa69840a90dd9162 Mon Sep 17 00:00:00 2001
+From: Sudeep <sudeepkumar@cem-solutions.net>
+Date: Fri, 23 Oct 2020 15:47:17 +0530
+Subject: [PATCH] Allo boss2 driver
+
+Signed-off-by: Sudeep <sudeepkumar@cem-solutions.net>
+---
+ sound/soc/bcm/Kconfig          |    9 +
+ sound/soc/bcm/Makefile         |    2 +
+ sound/soc/bcm/allo-boss2-dac.c | 1133 ++++++++++++++++++++++++++++++++
+ 3 files changed, 1144 insertions(+)
+ create mode 100644 sound/soc/bcm/allo-boss2-dac.c
+
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -267,6 +267,15 @@ config SND_BCM2708_SOC_ALLO_BOSS_DAC
+ 	help
+ 	  Say Y or M if you want to add support for Allo Boss DAC.
+ 
++config SND_BCM2708_SOC_ALLO_BOSS2_DAC
++	tristate "Support for Allo Boss2 DAC"
++	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++	depends on I2C
++	select REGMAP_I2C
++	select SND_AUDIO_GRAPH_CARD
++	help
++	  Say Y or M if you want to add support for Allo Boss2 DAC.
++
+ config SND_BCM2708_SOC_ALLO_DIGIONE
+ 	tristate "Support for Allo DigiOne"
+ 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -38,6 +38,7 @@ snd-soc-digidac1-soundcard-objs := digid
+ snd-soc-dionaudio-loco-objs := dionaudio_loco.o
+ snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o
+ snd-soc-allo-boss-dac-objs := allo-boss-dac.o
++snd-soc-allo-boss2-dac-objs := allo-boss2-dac.o
+ snd-soc-allo-piano-dac-objs := allo-piano-dac.o
+ snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
+ snd-soc-allo-katana-codec-objs := allo-katana-codec.o
+@@ -68,6 +69,7 @@ obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) +=
+ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o
+ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS2_DAC) += snd-soc-allo-boss2-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-codec.o
+--- /dev/null
++++ b/sound/soc/bcm/allo-boss2-dac.c
+@@ -0,0 +1,1133 @@
++/*
++ * Driver for the ALLO KATANA CODEC
++ *
++ * Author: Jaikumar <sudeepkumar@cem-solutions.net>
++ *		Copyright 2018
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/pm.h>
++#include <linux/i2c.h>
++#include <linux/of_device.h>
++#include <linux/regmap.h>
++#include <linux/slab.h>
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/soc-dapm.h>
++#include <sound/initval.h>
++#include <sound/tlv.h>
++#include <linux/of_gpio.h>
++#include <linux/regulator/consumer.h>
++#include <linux/pm_runtime.h>
++#include <linux/of_irq.h>
++#include <linux/completion.h>
++#include <linux/mutex.h>
++#include <linux/workqueue.h>
++#include <sound/jack.h>
++
++#include "../codecs/cs43130.h"
++
++#include <linux/clk.h>
++#include <linux/gcd.h>
++#define DEBUG
++
++#define CS43130_DSD_EN_MASK             0x10
++#define CS43130_PDN_DONE_INT_MASK        0x00
++
++static struct gpio_desc *snd_allo_clk44gpio;
++static struct gpio_desc *snd_allo_clk48gpio;
++
++struct  cs43130_priv {
++	struct snd_soc_component        *component;
++	struct regmap                   *regmap;
++	struct regulator_bulk_data      supplies[CS43130_NUM_SUPPLIES];
++	struct gpio_desc                *reset_gpio;
++	unsigned int                    dev_id; /* codec device ID */
++	int                             xtal_ibias;
++	/* shared by both DAIs */
++	struct mutex                    clk_mutex;
++	int                             clk_req;
++	bool                            pll_bypass;
++	struct completion               xtal_rdy;
++	struct completion               pll_rdy;
++	unsigned int                    mclk;
++	unsigned int                    mclk_int;
++	int                             mclk_int_src;
++
++	/* DAI specific */
++	struct cs43130_dai              dais[CS43130_DAI_ID_MAX];
++
++	/* HP load specific */
++	bool                            dc_meas;
++	bool                            ac_meas;
++	bool                            hpload_done;
++	struct completion               hpload_evt;
++	unsigned int                    hpload_stat;
++	u16                             hpload_dc[2];
++	u16                             dc_threshold[CS43130_DC_THRESHOLD];
++	u16                             ac_freq[CS43130_AC_FREQ];
++	u16                             hpload_ac[CS43130_AC_FREQ][2];
++	struct workqueue_struct         *wq;
++	struct work_struct              work;
++	struct snd_soc_jack             jack;
++};
++
++static const struct reg_default cs43130_reg_defaults[] = {
++	{CS43130_SYS_CLK_CTL_1, 0x06},
++	{CS43130_SP_SRATE, 0x01},
++	{CS43130_SP_BITSIZE, 0x05},
++	{CS43130_PAD_INT_CFG, 0x03},
++	{CS43130_PWDN_CTL, 0xFE},
++	{CS43130_CRYSTAL_SET, 0x04},
++	{CS43130_PLL_SET_1, 0x00},
++	{CS43130_PLL_SET_2, 0x00},
++	{CS43130_PLL_SET_3, 0x00},
++	{CS43130_PLL_SET_4, 0x00},
++	{CS43130_PLL_SET_5, 0x40},
++	{CS43130_PLL_SET_6, 0x10},
++	{CS43130_PLL_SET_7, 0x80},
++	{CS43130_PLL_SET_8, 0x03},
++	{CS43130_PLL_SET_9, 0x02},
++	{CS43130_PLL_SET_10, 0x02},
++	{CS43130_CLKOUT_CTL, 0x00},
++	{CS43130_ASP_NUM_1, 0x01},
++	{CS43130_ASP_NUM_2, 0x00},
++	{CS43130_ASP_DEN_1, 0x08},
++	{CS43130_ASP_DEN_2, 0x00},
++	{CS43130_ASP_LRCK_HI_TIME_1, 0x1F},
++	{CS43130_ASP_LRCK_HI_TIME_2, 0x00},
++	{CS43130_ASP_LRCK_PERIOD_1, 0x3F},
++	{CS43130_ASP_LRCK_PERIOD_2, 0x00},
++	{CS43130_ASP_CLOCK_CONF, 0x0C},
++	{CS43130_ASP_FRAME_CONF, 0x0A},
++	{CS43130_XSP_NUM_1, 0x01},
++	{CS43130_XSP_NUM_2, 0x00},
++	{CS43130_XSP_DEN_1, 0x02},
++	{CS43130_XSP_DEN_2, 0x00},
++	{CS43130_XSP_LRCK_HI_TIME_1, 0x1F},
++	{CS43130_XSP_LRCK_HI_TIME_2, 0x00},
++	{CS43130_XSP_LRCK_PERIOD_1, 0x3F},
++	{CS43130_XSP_LRCK_PERIOD_2, 0x00},
++	{CS43130_XSP_CLOCK_CONF, 0x0C},
++	{CS43130_XSP_FRAME_CONF, 0x0A},
++	{CS43130_ASP_CH_1_LOC, 0x00},
++	{CS43130_ASP_CH_2_LOC, 0x00},
++	{CS43130_ASP_CH_1_SZ_EN, 0x06},
++	{CS43130_ASP_CH_2_SZ_EN, 0x0E},
++	{CS43130_XSP_CH_1_LOC, 0x00},
++	{CS43130_XSP_CH_2_LOC, 0x00},
++	{CS43130_XSP_CH_1_SZ_EN, 0x06},
++	{CS43130_XSP_CH_2_SZ_EN, 0x0E},
++	{CS43130_DSD_VOL_B, 0x78},
++	{CS43130_DSD_VOL_A, 0x78},
++	{CS43130_DSD_PATH_CTL_1, 0xA8},
++	{CS43130_DSD_INT_CFG, 0x00},
++	{CS43130_DSD_PATH_CTL_2, 0x02},
++	{CS43130_DSD_PCM_MIX_CTL, 0x00},
++	{CS43130_DSD_PATH_CTL_3, 0x40},
++	{CS43130_HP_OUT_CTL_1, 0x30},
++	{CS43130_PCM_FILT_OPT, 0x02},
++	{CS43130_PCM_VOL_B, 0x78},
++	{CS43130_PCM_VOL_A, 0x78},
++	{CS43130_PCM_PATH_CTL_1, 0xA8},
++	{CS43130_PCM_PATH_CTL_2, 0x00},
++	{CS43130_CLASS_H_CTL, 0x1E},
++	{CS43130_HP_DETECT, 0x04},
++	{CS43130_HP_LOAD_1, 0x00},
++	{CS43130_HP_MEAS_LOAD_1, 0x00},
++	{CS43130_HP_MEAS_LOAD_2, 0x00},
++	{CS43130_INT_MASK_1, 0xFF},
++	{CS43130_INT_MASK_2, 0xFF},
++	{CS43130_INT_MASK_3, 0xFF},
++	{CS43130_INT_MASK_4, 0xFF},
++	{CS43130_INT_MASK_5, 0xFF},
++};
++static bool cs43130_volatile_register(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
++	case CS43130_HP_DC_STAT_1 ... CS43130_HP_DC_STAT_2:
++	case CS43130_HP_AC_STAT_1 ... CS43130_HP_AC_STAT_2:
++		return true;
++	default:
++		return false;
++	}
++}
++
++static const char * const pcm_spd_texts[] = {
++	"Fast",
++	"Slow",
++};
++
++static SOC_ENUM_SINGLE_DECL(pcm_spd_enum, CS43130_PCM_FILT_OPT, 7,
++			pcm_spd_texts);
++
++static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12750, 0);
++
++static const struct snd_kcontrol_new cs43130_controls[] = {
++	SOC_DOUBLE_R_TLV("Master Playback Volume", CS43130_PCM_VOL_B,
++			CS43130_PCM_VOL_A, 0, 255, 1, master_tlv),
++	SOC_DOUBLE("Master Playback Switch", CS43130_PCM_PATH_CTL_1,
++			0, 1, 1, 1),
++	SOC_DOUBLE_R_TLV("Digital Playback Volume", CS43130_DSD_VOL_B,
++			CS43130_DSD_VOL_A, 0, 255, 1, master_tlv),
++	SOC_DOUBLE("Digital Playback Switch", CS43130_DSD_PATH_CTL_1,
++			0, 1, 1, 1),
++	SOC_SINGLE("HV_Enable", CS43130_HP_OUT_CTL_1, 0, 1, 0),
++	SOC_ENUM("PCM Filter Speed", pcm_spd_enum),
++	SOC_SINGLE("PCM Phase Compensation", CS43130_PCM_FILT_OPT, 6, 1, 0),
++	SOC_SINGLE("PCM Nonoversample Emulate", CS43130_PCM_FILT_OPT, 5, 1, 0),
++	SOC_SINGLE("PCM High-pass Filter", CS43130_PCM_FILT_OPT, 1, 1, 0),
++	SOC_SINGLE("PCM De-emphasis Filter", CS43130_PCM_FILT_OPT, 0, 1, 0),
++};
++
++static bool cs43130_readable_register(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case CS43130_DEVID_AB ... CS43130_SYS_CLK_CTL_1:
++	case CS43130_SP_SRATE ... CS43130_PAD_INT_CFG:
++	case CS43130_PWDN_CTL:
++	case CS43130_CRYSTAL_SET:
++	case CS43130_PLL_SET_1 ... CS43130_PLL_SET_5:
++	case CS43130_PLL_SET_6:
++	case CS43130_PLL_SET_7:
++	case CS43130_PLL_SET_8:
++	case CS43130_PLL_SET_9:
++	case CS43130_PLL_SET_10:
++	case CS43130_CLKOUT_CTL:
++	case CS43130_ASP_NUM_1 ... CS43130_ASP_FRAME_CONF:
++	case CS43130_XSP_NUM_1 ... CS43130_XSP_FRAME_CONF:
++	case CS43130_ASP_CH_1_LOC:
++	case CS43130_ASP_CH_2_LOC:
++	case CS43130_ASP_CH_1_SZ_EN:
++	case CS43130_ASP_CH_2_SZ_EN:
++	case CS43130_XSP_CH_1_LOC:
++	case CS43130_XSP_CH_2_LOC:
++	case CS43130_XSP_CH_1_SZ_EN:
++	case CS43130_XSP_CH_2_SZ_EN:
++	case CS43130_DSD_VOL_B ... CS43130_DSD_PATH_CTL_3:
++	case CS43130_HP_OUT_CTL_1:
++	case CS43130_PCM_FILT_OPT ... CS43130_PCM_PATH_CTL_2:
++	case CS43130_CLASS_H_CTL:
++	case CS43130_HP_DETECT:
++	case CS43130_HP_STATUS:
++	case CS43130_HP_LOAD_1:
++	case CS43130_HP_MEAS_LOAD_1:
++	case CS43130_HP_MEAS_LOAD_2:
++	case CS43130_HP_DC_STAT_1:
++	case CS43130_HP_DC_STAT_2:
++	case CS43130_HP_AC_STAT_1:
++	case CS43130_HP_AC_STAT_2:
++	case CS43130_HP_LOAD_STAT:
++	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
++	case CS43130_INT_MASK_1 ... CS43130_INT_MASK_5:
++		return true;
++	default:
++		return false;
++	}
++}
++static bool cs43130_precious_register(struct device *dev, unsigned int reg)
++{
++	switch (reg) {
++	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
++		return true;
++	default:
++		return false;
++	}
++}
++static int cs43130_pcm_pdn(struct snd_soc_component *component)
++{
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++	int ret;
++	unsigned int reg, pdn_int;
++
++	regmap_write(cs43130->regmap, CS43130_DSD_PATH_CTL_2, 0x02);
++	regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
++			CS43130_PDN_DONE_INT_MASK, 0);
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++			CS43130_PDN_HP_MASK, 1 << CS43130_PDN_HP_SHIFT);
++	usleep_range(10, 50);
++	ret = regmap_read(cs43130->regmap, CS43130_INT_STATUS_1, &reg);
++	pdn_int = reg & 0xFE;
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++			CS43130_PDN_ASP_MASK, 1 << CS43130_PDN_ASP_SHIFT);
++	return 0;
++
++}
++static int cs43130_pwr_up_asp_dac(struct snd_soc_component *component)
++{
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++
++	regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
++			CS43130_ASP_3ST_MASK, 0);
++	regmap_write(cs43130->regmap, CS43130_DXD1, 0x99);
++	regmap_write(cs43130->regmap, CS43130_DXD13, 0x20);
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++			CS43130_PDN_ASP_MASK, 0);
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++			CS43130_PDN_HP_MASK, 0);
++	usleep_range(10000, 12000);
++	regmap_write(cs43130->regmap, CS43130_DXD1, 0x00);
++	regmap_write(cs43130->regmap, CS43130_DXD13, 0x00);
++	return 0;
++}
++static int cs43130_change_clksrc(struct snd_soc_component *component,
++				enum cs43130_mclk_src_sel src)
++{
++	int ret;
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++	int mclk_int_decoded;
++
++	if (src == cs43130->mclk_int_src) {
++		/* clk source has not changed */
++		return 0;
++	}
++	switch (cs43130->mclk_int) {
++	case CS43130_MCLK_22M:
++		mclk_int_decoded = CS43130_MCLK_22P5;
++		break;
++	case CS43130_MCLK_24M:
++		mclk_int_decoded = CS43130_MCLK_24P5;
++		break;
++	default:
++		dev_err(component->dev, "Invalid MCLK INT freq: %u\n",
++			cs43130->mclk_int);
++		return -EINVAL;
++	}
++
++	switch (src) {
++	case CS43130_MCLK_SRC_EXT:
++		cs43130->pll_bypass = true;
++		cs43130->mclk_int_src = CS43130_MCLK_SRC_EXT;
++		if (cs43130->xtal_ibias == CS43130_XTAL_UNUSED) {
++			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++					CS43130_PDN_XTAL_MASK,
++					1 << CS43130_PDN_XTAL_SHIFT);
++		} else {
++			reinit_completion(&cs43130->xtal_rdy);
++			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
++					CS43130_XTAL_RDY_INT_MASK, 0);
++			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++					CS43130_PDN_XTAL_MASK, 0);
++			ret = wait_for_completion_timeout(&cs43130->xtal_rdy,
++					msecs_to_jiffies(100));
++			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
++					CS43130_XTAL_RDY_INT_MASK,
++					1 << CS43130_XTAL_RDY_INT_SHIFT);
++			if (ret == 0) {
++				dev_err(component->dev, "Timeout waiting for XTAL_READY interrupt\n");
++				return -ETIMEDOUT;
++			}
++		}
++	regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
++				CS43130_MCLK_SRC_SEL_MASK,
++				src << CS43130_MCLK_SRC_SEL_SHIFT);
++	regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
++				CS43130_MCLK_INT_MASK,
++				mclk_int_decoded << CS43130_MCLK_INT_SHIFT);
++	usleep_range(150, 200);
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++				CS43130_PDN_PLL_MASK,
++				1 << CS43130_PDN_PLL_SHIFT);
++	break;
++	case CS43130_MCLK_SRC_RCO:
++		cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;
++
++		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
++				CS43130_MCLK_SRC_SEL_MASK,
++				src << CS43130_MCLK_SRC_SEL_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
++				CS43130_MCLK_INT_MASK,
++				CS43130_MCLK_22P5 << CS43130_MCLK_INT_SHIFT);
++		usleep_range(150, 200);
++		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++				CS43130_PDN_XTAL_MASK,
++				1 << CS43130_PDN_XTAL_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++				CS43130_PDN_PLL_MASK,
++				1 << CS43130_PDN_PLL_SHIFT);
++	break;
++	default:
++		dev_err(component->dev, "Invalid MCLK source value\n");
++		return -EINVAL;
++	}
++
++	return 0;
++}
++static const struct cs43130_bitwidth_map cs43130_bitwidth_table[] = {
++	{8,     CS43130_SP_BIT_SIZE_8,  CS43130_CH_BIT_SIZE_8},
++	{16,    CS43130_SP_BIT_SIZE_16, CS43130_CH_BIT_SIZE_16},
++	{24,    CS43130_SP_BIT_SIZE_24, CS43130_CH_BIT_SIZE_24},
++	{32,    CS43130_SP_BIT_SIZE_32, CS43130_CH_BIT_SIZE_32},
++};
++
++static const struct cs43130_bitwidth_map *cs43130_get_bitwidth_table(
++					unsigned int bitwidth)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(cs43130_bitwidth_table); i++) {
++		if (cs43130_bitwidth_table[i].bitwidth == bitwidth)
++			return &cs43130_bitwidth_table[i];
++	}
++
++	return NULL;
++}
++static int cs43130_set_bitwidth(int dai_id, unsigned int bitwidth_dai,
++				struct regmap *regmap)
++{
++	const struct cs43130_bitwidth_map *bw_map;
++
++	bw_map = cs43130_get_bitwidth_table(bitwidth_dai);
++	if (!bw_map)
++		return -EINVAL;
++
++	switch (dai_id) {
++	case CS43130_ASP_PCM_DAI:
++	case CS43130_ASP_DOP_DAI:
++		regmap_update_bits(regmap, CS43130_ASP_CH_1_SZ_EN,
++				CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
++		regmap_update_bits(regmap, CS43130_ASP_CH_2_SZ_EN,
++				CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
++		regmap_update_bits(regmap, CS43130_SP_BITSIZE,
++				CS43130_ASP_BITSIZE_MASK, bw_map->sp_bit);
++		break;
++	case CS43130_XSP_DOP_DAI:
++		regmap_update_bits(regmap, CS43130_XSP_CH_1_SZ_EN,
++				CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
++		regmap_update_bits(regmap, CS43130_XSP_CH_2_SZ_EN,
++				CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
++		regmap_update_bits(regmap, CS43130_SP_BITSIZE,
++				CS43130_XSP_BITSIZE_MASK, bw_map->sp_bit <<
++				CS43130_XSP_BITSIZE_SHIFT);
++	break;
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++static const struct cs43130_rate_map cs43130_rate_table[] = {
++	{32000,         CS43130_ASP_SPRATE_32K},
++	{44100,         CS43130_ASP_SPRATE_44_1K},
++	{48000,         CS43130_ASP_SPRATE_48K},
++	{88200,         CS43130_ASP_SPRATE_88_2K},
++	{96000,         CS43130_ASP_SPRATE_96K},
++	{176400,        CS43130_ASP_SPRATE_176_4K},
++	{192000,        CS43130_ASP_SPRATE_192K},
++	{352800,        CS43130_ASP_SPRATE_352_8K},
++	{384000,        CS43130_ASP_SPRATE_384K},
++};
++
++static const struct cs43130_rate_map *cs43130_get_rate_table(int fs)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(cs43130_rate_table); i++) {
++		if (cs43130_rate_table[i].fs == fs)
++			return &cs43130_rate_table[i];
++	}
++
++	return NULL;
++}
++
++static const struct cs43130_clk_gen *cs43130_get_clk_gen(int mclk_int, int fs,
++	const struct cs43130_clk_gen *clk_gen_table, int len_clk_gen_table)
++{
++	int i;
++
++	for (i = 0; i < len_clk_gen_table; i++) {
++		if (clk_gen_table[i].mclk_int == mclk_int &&
++					clk_gen_table[i].fs == fs)
++			return &clk_gen_table[i];
++	}
++	return NULL;
++}
++
++static int cs43130_set_sp_fmt(int dai_id, unsigned int bitwidth_sclk,
++				struct snd_pcm_hw_params *params,
++				struct cs43130_priv *cs43130)
++{
++	u16 frm_size;
++	u16 hi_size;
++	u8 frm_delay;
++	u8 frm_phase;
++	u8 frm_data;
++	u8 sclk_edge;
++	u8 lrck_edge;
++	u8 clk_data;
++	u8 loc_ch1;
++	u8 loc_ch2;
++	u8 dai_mode_val;
++	const struct cs43130_clk_gen *clk_gen;
++
++	switch (cs43130->dais[dai_id].dai_format) {
++	case SND_SOC_DAIFMT_I2S:
++		hi_size = bitwidth_sclk;
++		frm_delay = 2;
++		frm_phase = 0;
++		break;
++	case SND_SOC_DAIFMT_LEFT_J:
++		hi_size = bitwidth_sclk;
++		frm_delay = 2;
++		frm_phase = 1;
++		break;
++	case SND_SOC_DAIFMT_DSP_A:
++		hi_size = 1;
++		frm_delay = 2;
++		frm_phase = 1;
++		break;
++	case SND_SOC_DAIFMT_DSP_B:
++		hi_size = 1;
++		frm_delay = 0;
++		frm_phase = 1;
++		break;
++	default:
++		return -EINVAL;
++	}
++	switch (cs43130->dais[dai_id].dai_mode) {
++	case SND_SOC_DAIFMT_CBS_CFS:
++		dai_mode_val = 0;
++		break;
++	case SND_SOC_DAIFMT_CBM_CFM:
++		dai_mode_val = 1;
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	frm_size = bitwidth_sclk * params_channels(params);
++	sclk_edge = 1;
++	lrck_edge = 0;
++	loc_ch1 = 0;
++	loc_ch2 = bitwidth_sclk * (params_channels(params) - 1);
++
++	frm_data = frm_delay & CS43130_SP_FSD_MASK;
++	frm_data |= (frm_phase << CS43130_SP_STP_SHIFT) & CS43130_SP_STP_MASK;
++
++	clk_data = lrck_edge & CS43130_SP_LCPOL_IN_MASK;
++	clk_data |= (lrck_edge << CS43130_SP_LCPOL_OUT_SHIFT) &
++			CS43130_SP_LCPOL_OUT_MASK;
++	clk_data |= (sclk_edge << CS43130_SP_SCPOL_IN_SHIFT) &
++			CS43130_SP_SCPOL_IN_MASK;
++	clk_data |= (sclk_edge << CS43130_SP_SCPOL_OUT_SHIFT) &
++			CS43130_SP_SCPOL_OUT_MASK;
++	clk_data |= (dai_mode_val << CS43130_SP_MODE_SHIFT) &
++			CS43130_SP_MODE_MASK;
++	switch (dai_id) {
++	case CS43130_ASP_PCM_DAI:
++	case CS43130_ASP_DOP_DAI:
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_1,
++			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
++			CS43130_SP_LCPR_LSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_2,
++			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
++			CS43130_SP_LCPR_MSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_1,
++			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
++			CS43130_SP_LCHI_LSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_2,
++			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
++			CS43130_SP_LCHI_MSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_ASP_FRAME_CONF, frm_data);
++		regmap_write(cs43130->regmap, CS43130_ASP_CH_1_LOC, loc_ch1);
++		regmap_write(cs43130->regmap, CS43130_ASP_CH_2_LOC, loc_ch2);
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_1_SZ_EN,
++			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_2_SZ_EN,
++			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_ASP_CLOCK_CONF, clk_data);
++		break;
++	case CS43130_XSP_DOP_DAI:
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_1,
++			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
++			CS43130_SP_LCPR_LSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_2,
++			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
++			CS43130_SP_LCPR_MSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_1,
++			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
++			CS43130_SP_LCHI_LSB_DATA_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_2,
++			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
++			CS43130_SP_LCHI_MSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_XSP_FRAME_CONF, frm_data);
++		regmap_write(cs43130->regmap, CS43130_XSP_CH_1_LOC, loc_ch1);
++		regmap_write(cs43130->regmap, CS43130_XSP_CH_2_LOC, loc_ch2);
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_1_SZ_EN,
++			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_2_SZ_EN,
++			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_XSP_CLOCK_CONF, clk_data);
++		break;
++	default:
++		return -EINVAL;
++	}
++	switch (frm_size) {
++	case 16:
++		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
++						params_rate(params),
++						cs43130_16_clk_gen,
++						ARRAY_SIZE(cs43130_16_clk_gen));
++		break;
++	case 32:
++		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
++						params_rate(params),
++						cs43130_32_clk_gen,
++						ARRAY_SIZE(cs43130_32_clk_gen));
++		break;
++	case 48:
++		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
++						params_rate(params),
++						cs43130_48_clk_gen,
++						ARRAY_SIZE(cs43130_48_clk_gen));
++		break;
++	case 64:
++		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
++						params_rate(params),
++						cs43130_64_clk_gen,
++						ARRAY_SIZE(cs43130_64_clk_gen));
++		break;
++	default:
++		return -EINVAL;
++	}
++	if (!clk_gen)
++		return -EINVAL;
++	switch (dai_id) {
++	case CS43130_ASP_PCM_DAI:
++	case CS43130_ASP_DOP_DAI:
++		regmap_write(cs43130->regmap, CS43130_ASP_DEN_1,
++				(clk_gen->den & CS43130_SP_M_LSB_DATA_MASK) >>
++				CS43130_SP_M_LSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_ASP_DEN_2,
++				(clk_gen->den & CS43130_SP_M_MSB_DATA_MASK) >>
++				CS43130_SP_M_MSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_ASP_NUM_1,
++				(clk_gen->num & CS43130_SP_N_LSB_DATA_MASK) >>
++				CS43130_SP_N_LSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_ASP_NUM_2,
++				(clk_gen->num & CS43130_SP_N_MSB_DATA_MASK) >>
++				CS43130_SP_N_MSB_DATA_SHIFT);
++		break;
++	case CS43130_XSP_DOP_DAI:
++		regmap_write(cs43130->regmap, CS43130_XSP_DEN_1,
++				(clk_gen->den & CS43130_SP_M_LSB_DATA_MASK) >>
++				CS43130_SP_M_LSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_XSP_DEN_2,
++				(clk_gen->den & CS43130_SP_M_MSB_DATA_MASK) >>
++				CS43130_SP_M_MSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_XSP_NUM_1,
++				(clk_gen->num & CS43130_SP_N_LSB_DATA_MASK) >>
++				CS43130_SP_N_LSB_DATA_SHIFT);
++		regmap_write(cs43130->regmap, CS43130_XSP_NUM_2,
++				(clk_gen->num & CS43130_SP_N_MSB_DATA_MASK) >>
++				CS43130_SP_N_MSB_DATA_SHIFT);
++		break;
++	default:
++		return -EINVAL;
++	}
++	return 0;
++}
++
++static int cs43130_hw_params(struct snd_pcm_substream *substream,
++				struct snd_pcm_hw_params *params,
++				struct snd_soc_dai *dai)
++{
++	struct snd_soc_component *component = dai->component;
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++	const struct cs43130_rate_map *rate_map;
++	unsigned int sclk = cs43130->dais[dai->id].sclk;
++	unsigned int bitwidth_sclk;
++	unsigned int bitwidth_dai = (unsigned int)(params_width(params));
++	unsigned int dop_rate = (unsigned int)(params_rate(params));
++	unsigned int required_clk, ret;
++	u8 dsd_speed;
++
++	cs43130->pll_bypass = true;
++	cs43130_pcm_pdn(component);
++	mutex_lock(&cs43130->clk_mutex);
++	if (!cs43130->clk_req) {
++		/* no DAI is currently using clk */
++		if (!(CS43130_MCLK_22M % params_rate(params))) {
++			required_clk = CS43130_MCLK_22M;
++			cs43130->mclk_int =  CS43130_MCLK_22M;
++			gpiod_set_value_cansleep(snd_allo_clk44gpio, 1);
++			gpiod_set_value_cansleep(snd_allo_clk48gpio, 0);
++			usleep_range(13500, 14000);
++		} else {
++			required_clk = CS43130_MCLK_24M;
++			cs43130->mclk_int =  CS43130_MCLK_24M;
++			gpiod_set_value_cansleep(snd_allo_clk48gpio, 1);
++			gpiod_set_value_cansleep(snd_allo_clk44gpio, 0);
++			usleep_range(13500, 14000);
++		}
++		if (cs43130->pll_bypass)
++			cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT);
++		else
++			cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL);
++	}
++
++	cs43130->clk_req++;
++	mutex_unlock(&cs43130->clk_mutex);
++
++	switch (dai->id) {
++	case CS43130_ASP_DOP_DAI:
++	case CS43130_XSP_DOP_DAI:
++		/* DoP bitwidth is always 24-bit */
++		bitwidth_dai = 24;
++		sclk = params_rate(params) * bitwidth_dai *
++				params_channels(params);
++
++		switch (params_rate(params)) {
++		case 176400:
++			dsd_speed = 0;
++			break;
++		case 352800:
++			dsd_speed = 1;
++			break;
++		default:
++			dev_err(component->dev, "Rate(%u) not supported\n",
++				params_rate(params));
++			return -EINVAL;
++		}
++
++		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
++					CS43130_DSD_SPEED_MASK,
++					dsd_speed << CS43130_DSD_SPEED_SHIFT);
++		break;
++	case CS43130_ASP_PCM_DAI:
++		rate_map = cs43130_get_rate_table(params_rate(params));
++		if (!rate_map)
++			return -EINVAL;
++
++		regmap_write(cs43130->regmap, CS43130_SP_SRATE, rate_map->val);
++		if ((dop_rate == 176400) && (bitwidth_dai == 24)) {
++			dsd_speed = 0;
++			regmap_update_bits(cs43130->regmap,
++					CS43130_DSD_PATH_CTL_2,
++					CS43130_DSD_SPEED_MASK,
++					dsd_speed << CS43130_DSD_SPEED_SHIFT);
++			regmap_update_bits(cs43130->regmap,
++					CS43130_DSD_PATH_CTL_2,
++					CS43130_DSD_SRC_MASK,
++					CS43130_DSD_SRC_ASP <<
++					CS43130_DSD_SRC_SHIFT);
++			regmap_update_bits(cs43130->regmap,
++					CS43130_DSD_PATH_CTL_2,
++					CS43130_DSD_EN_MASK, 0x01 <<
++					CS43130_DSD_EN_SHIFT);
++		}
++		break;
++	default:
++		dev_err(component->dev, "Invalid DAI (%d)\n", dai->id);
++		return -EINVAL;
++	}
++
++	switch (dai->id) {
++	case CS43130_ASP_DOP_DAI:
++		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
++				CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_ASP <<
++				CS43130_DSD_SRC_SHIFT);
++		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
++				CS43130_DSD_EN_MASK, 0x01 <<
++				CS43130_DSD_EN_SHIFT);
++		break;
++	case CS43130_XSP_DOP_DAI:
++		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
++				CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_XSP <<
++				CS43130_DSD_SRC_SHIFT);
++		break;
++	}
++	if (!sclk && cs43130->dais[dai->id].dai_mode ==
++						SND_SOC_DAIFMT_CBM_CFM) {
++		/* Calculate SCLK in master mode if unassigned */
++		sclk = params_rate(params) * bitwidth_dai *
++				params_channels(params);
++	}
++	if (!sclk) {
++		/* at this point, SCLK must be set */
++		dev_err(component->dev, "SCLK freq is not set\n");
++		return -EINVAL;
++	}
++
++	bitwidth_sclk = (sclk / params_rate(params)) / params_channels(params);
++	if (bitwidth_sclk < bitwidth_dai) {
++		dev_err(component->dev, "Format not supported: SCLK freq is too low\n");
++		return -EINVAL;
++	}
++
++	dev_dbg(component->dev,
++		"sclk = %u, fs = %d, bitwidth_dai = %u\n",
++		sclk, params_rate(params), bitwidth_dai);
++
++	dev_dbg(component->dev,
++		"bitwidth_sclk = %u, num_ch = %u\n",
++		bitwidth_sclk, params_channels(params));
++
++	cs43130_set_bitwidth(dai->id, bitwidth_dai, cs43130->regmap);
++	cs43130_set_sp_fmt(dai->id, bitwidth_sclk, params, cs43130);
++	ret = cs43130_pwr_up_asp_dac(component);
++	return 0;
++}
++
++static int cs43130_hw_free(struct snd_pcm_substream *substream,
++					struct snd_soc_dai *dai)
++{
++	struct snd_soc_component *component = dai->component;
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++
++	mutex_lock(&cs43130->clk_mutex);
++	cs43130->clk_req--;
++	if (!cs43130->clk_req) {
++		/* no DAI is currently using clk */
++		cs43130_change_clksrc(component, CS43130_MCLK_SRC_RCO);
++		cs43130_pcm_pdn(component);
++	}
++	mutex_unlock(&cs43130->clk_mutex);
++
++	return 0;
++}
++
++static const unsigned int cs43130_asp_src_rates[] = {
++	32000, 44100, 48000, 88200, 96000, 176400, 192000
++};
++
++static const struct snd_pcm_hw_constraint_list cs43130_asp_constraints = {
++	.count  = ARRAY_SIZE(cs43130_asp_src_rates),
++	.list   = cs43130_asp_src_rates,
++};
++
++static int cs43130_pcm_startup(struct snd_pcm_substream *substream,
++					struct snd_soc_dai *dai)
++{
++	return snd_pcm_hw_constraint_list(substream->runtime, 0,
++					SNDRV_PCM_HW_PARAM_RATE,
++					&cs43130_asp_constraints);
++}
++
++static int cs43130_pcm_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
++{
++	struct snd_soc_component *component = codec_dai->component;
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++
++	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++	case SND_SOC_DAIFMT_CBS_CFS:
++		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBS_CFS;
++		break;
++	case SND_SOC_DAIFMT_CBM_CFM:
++		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBM_CFM;
++		break;
++	default:
++		dev_err(component->dev, "unsupported mode\n");
++		return -EINVAL;
++	}
++
++	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
++	case SND_SOC_DAIFMT_I2S:
++		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_I2S;
++		break;
++	case SND_SOC_DAIFMT_LEFT_J:
++		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_LEFT_J;
++		break;
++	default:
++		dev_err(component->dev,
++			"unsupported audio format\n");
++		return -EINVAL;
++	}
++
++	dev_dbg(component->dev, "dai_id = %d,  dai_mode = %u, dai_format = %u\n",
++			codec_dai->id,
++			cs43130->dais[codec_dai->id].dai_mode,
++			cs43130->dais[codec_dai->id].dai_format);
++
++	return 0;
++}
++
++static int cs43130_set_sysclk(struct snd_soc_dai *codec_dai,
++					int clk_id, unsigned int freq, int dir)
++{
++	struct snd_soc_component *component = codec_dai->component;
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++
++	cs43130->dais[codec_dai->id].sclk = freq;
++	dev_dbg(component->dev, "dai_id = %d,  sclk = %u\n", codec_dai->id,
++				cs43130->dais[codec_dai->id].sclk);
++
++	return 0;
++}
++
++static int cs43130_component_set_sysclk(struct snd_soc_component *component,
++					int clk_id, int source,
++					unsigned int freq, int dir)
++{
++	struct cs43130_priv *cs43130 =
++				snd_soc_component_get_drvdata(component);
++
++	dev_dbg(component->dev, "clk_id = %d, source = %d, freq = %d, dir = %d\n",
++		clk_id, source, freq, dir);
++
++	switch (freq) {
++	case CS43130_MCLK_22M:
++	case CS43130_MCLK_24M:
++		cs43130->mclk = freq;
++		break;
++	default:
++		dev_err(component->dev, "Invalid MCLK INT freq: %u\n", freq);
++		return -EINVAL;
++	}
++
++	if (source == CS43130_MCLK_SRC_EXT) {
++		cs43130->pll_bypass = true;
++	} else {
++		dev_err(component->dev, "Invalid MCLK source\n");
++		return -EINVAL;
++	}
++
++	return 0;
++}
++static u16 const cs43130_ac_freq[CS43130_AC_FREQ] = {
++	24,
++	43,
++	93,
++	200,
++	431,
++	928,
++	2000,
++	4309,
++	9283,
++	20000,
++};
++static const struct snd_soc_dai_ops cs43130_dai_ops = {
++	.startup        = cs43130_pcm_startup,
++	.hw_params	= cs43130_hw_params,
++	.hw_free        = cs43130_hw_free,
++	.set_sysclk     = cs43130_set_sysclk,
++	.set_fmt        = cs43130_pcm_set_fmt,
++};
++
++static struct snd_soc_dai_driver cs43130_codec_dai = {
++	.name = "allo-cs43130",
++	.playback = {
++		.stream_name = "Playback",
++		.channels_min = 2,
++		.channels_max = 2,
++		.rates = SNDRV_PCM_RATE_CONTINUOUS,
++		.rate_min = 44100,
++		.rate_max = 192000,
++		.formats = SNDRV_PCM_FMTBIT_S16_LE |
++			SNDRV_PCM_FMTBIT_S24_LE |
++			SNDRV_PCM_FMTBIT_S32_LE
++
++	},
++	.ops = &cs43130_dai_ops,
++};
++
++static struct snd_soc_component_driver cs43130_component_driver = {
++	.idle_bias_on           = true,
++	.controls		= cs43130_controls,
++	.num_controls		= ARRAY_SIZE(cs43130_controls),
++	.set_sysclk             = cs43130_component_set_sysclk,
++	.idle_bias_on           = 1,
++	.use_pmdown_time        = 1,
++	.endianness             = 1,
++	.non_legacy_dai_naming  = 1,
++};
++
++static const struct regmap_config cs43130_regmap = {
++	.reg_bits               = 24,
++	.pad_bits               = 8,
++	.val_bits               = 8,
++
++	.max_register           = CS43130_LASTREG,
++	.reg_defaults           = cs43130_reg_defaults,
++	.num_reg_defaults       = ARRAY_SIZE(cs43130_reg_defaults),
++	.readable_reg           = cs43130_readable_register,
++	.precious_reg           = cs43130_precious_register,
++	.volatile_reg           = cs43130_volatile_register,
++	.cache_type             = REGCACHE_RBTREE,
++	/* needed for regcache_sync */
++	.use_single_read        = true,
++	.use_single_write       = true,
++};
++
++static u16 const cs43130_dc_threshold[CS43130_DC_THRESHOLD] = {
++	50,
++	120,
++};
++
++static int cs43130_handle_device_data(struct i2c_client *i2c_client,
++					struct cs43130_priv *cs43130)
++{
++	struct device_node *np = i2c_client->dev.of_node;
++	unsigned int val;
++	int i;
++
++	if (of_property_read_u32(np, "cirrus,xtal-ibias", &val) < 0) {
++	/* Crystal is unused. System clock is used for external MCLK */
++		cs43130->xtal_ibias = CS43130_XTAL_UNUSED;
++		return 0;
++	}
++
++	switch (val) {
++	case 1:
++		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_7_5UA;
++		break;
++	case 2:
++		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_12_5UA;
++		break;
++	case 3:
++		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_15UA;
++		break;
++	default:
++		dev_err(&i2c_client->dev,
++			"Invalid cirrus,xtal-ibias value: %d\n", val);
++		return -EINVAL;
++	}
++
++	cs43130->dc_meas = of_property_read_bool(np, "cirrus,dc-measure");
++	cs43130->ac_meas = of_property_read_bool(np, "cirrus,ac-measure");
++
++	if (of_property_read_u16_array(np, "cirrus,ac-freq", cs43130->ac_freq,
++					CS43130_AC_FREQ) < 0) {
++		for (i = 0; i < CS43130_AC_FREQ; i++)
++			cs43130->ac_freq[i] = cs43130_ac_freq[i];
++	}
++
++	if (of_property_read_u16_array(np, "cirrus,dc-threshold",
++					cs43130->dc_threshold,
++					CS43130_DC_THRESHOLD) < 0) {
++		for (i = 0; i < CS43130_DC_THRESHOLD; i++)
++			cs43130->dc_threshold[i] = cs43130_dc_threshold[i];
++	}
++
++	return 0;
++}
++
++
++static int allo_cs43130_component_probe(struct i2c_client *i2c,
++			     const struct i2c_device_id *id)
++{
++	struct regmap *regmap;
++	struct regmap_config config = cs43130_regmap;
++	struct device *dev = &i2c->dev;
++	struct cs43130_priv *cs43130;
++	unsigned int devid = 0;
++	unsigned int reg;
++	int ret;
++
++	regmap = devm_regmap_init_i2c(i2c, &config);
++	if (IS_ERR(regmap))
++		return PTR_ERR(regmap);
++
++	cs43130 = devm_kzalloc(dev, sizeof(struct cs43130_priv),
++					GFP_KERNEL);
++	if (!cs43130)
++		return -ENOMEM;
++
++	dev_set_drvdata(dev, cs43130);
++	cs43130->regmap = regmap;
++
++	if (i2c->dev.of_node) {
++		ret = cs43130_handle_device_data(i2c, cs43130);
++		if (ret != 0)
++			return ret;
++	}
++	usleep_range(2000, 2050);
++
++	ret = regmap_read(cs43130->regmap, CS43130_DEVID_AB, &reg);
++	devid = (reg & 0xFF) << 12;
++	ret = regmap_read(cs43130->regmap, CS43130_DEVID_CD, &reg);
++	devid |= (reg & 0xFF) << 4;
++	ret = regmap_read(cs43130->regmap, CS43130_DEVID_E, &reg);
++	devid |= (reg & 0xF0) >> 4;
++	if (devid != CS43198_CHIP_ID) {
++		dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
++		return ret;
++	}
++
++	cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;
++	msleep(20);
++
++	ret = snd_soc_register_component(dev, &cs43130_component_driver,
++				    &cs43130_codec_dai, 1);
++	if (ret != 0) {
++		dev_err(dev, "failed to register codec: %d\n", ret);
++		return ret;
++	}
++	regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
++			CS43130_ASP_3ST_MASK, 0);
++	regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
++			CS43130_XSP_3ST_MASK, 1);
++	regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
++			CS43130_PDN_HP_MASK, 1 << CS43130_PDN_HP_SHIFT);
++	msleep(20);
++	regmap_write(cs43130->regmap, CS43130_CLASS_H_CTL, 0x06);
++	snd_allo_clk44gpio = devm_gpiod_get(dev, "clock44", GPIOD_OUT_HIGH);
++	if (IS_ERR(snd_allo_clk44gpio))
++		dev_err(dev, "devm_gpiod_get() failed\n");
++
++	snd_allo_clk48gpio = devm_gpiod_get(dev, "clock48", GPIOD_OUT_LOW);
++	if (IS_ERR(snd_allo_clk48gpio))
++		dev_err(dev, "devm_gpiod_get() failed\n");
++
++	return 0;
++}
++
++static int allo_cs43130_component_remove(struct i2c_client *i2c)
++{
++	snd_soc_unregister_component(&i2c->dev);
++	return 0;
++}
++
++static const struct i2c_device_id allo_cs43130_component_id[] = {
++	{ "allo-cs43198", },
++	{ }
++};
++MODULE_DEVICE_TABLE(i2c, allo_cs43130_component_id);
++
++static const struct of_device_id allo_cs43130_codec_of_match[] = {
++	{ .compatible = "allo,allo-cs43198", },
++	{ }
++};
++MODULE_DEVICE_TABLE(of, allo_cs43130_codec_of_match);
++
++static struct i2c_driver allo_cs43130_component_driver = {
++	.probe		= allo_cs43130_component_probe,
++	.remove		= allo_cs43130_component_remove,
++	.id_table	= allo_cs43130_component_id,
++	.driver		= {
++	.name		= "allo-cs43198",
++	.of_match_table = allo_cs43130_codec_of_match,
++	},
++};
++
++module_i2c_driver(allo_cs43130_component_driver);
++
++MODULE_DESCRIPTION("ASoC Allo Boss2 Codec Driver");
++MODULE_AUTHOR("Sudeepkumar <sudeepkumar@cem-solutions.net>");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0391-Add-allo-boss2-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0391-Add-allo-boss2-overlay.patch
new file mode 100644
index 0000000000..841e942b63
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0391-Add-allo-boss2-overlay.patch
@@ -0,0 +1,98 @@
+From d05c88f5281ef8d50c984bfca8faf8420c656057 Mon Sep 17 00:00:00 2001
+From: Sudeep <sudeepkumar@cem-solutions.net>
+Date: Fri, 23 Oct 2020 15:51:15 +0530
+Subject: [PATCH] Add allo boss2 overlay
+
+Signed-off-by: Sudeep <sudeepkumar@cem-solutions.net>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 ++
+ .../overlays/allo-boss2-dac-audio-overlay.dts | 57 +++++++++++++++++++
+ 3 files changed, 64 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/allo-boss2-dac-audio-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -14,6 +14,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	adv728x-m.dtbo \
+ 	akkordion-iqdacplus.dtbo \
+ 	allo-boss-dac-pcm512x-audio.dtbo \
++	allo-boss2-dac-audio.dtbo \
+ 	allo-digione.dtbo \
+ 	allo-katana-dac-audio.dtbo \
+ 	allo-piano-dac-pcm512x-audio.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -420,6 +420,12 @@ Params: 24db_digital_gain       Allow ga
+                                 slave"
+ 
+ 
++Name:   allo-boss2-dac-audio
++Info:   Configures the Allo Boss2 DAC audio card
++Load:   dtoverlay=allo-boss2-dac-audio
++Params: <None>
++
++
+ Name:   allo-digione
+ Info:   Configures the Allo Digione audio card
+ Load:   dtoverlay=allo-digione
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-boss2-dac-audio-overlay.dts
+@@ -0,0 +1,57 @@
++/* * Definitions for Allo Boss2 DAC boards
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			#sound-dai-cells = <0>;
++			status = "okay";
++			cpu_port: port {
++				cpu_endpoint: endpoint {
++					remote-endpoint = <&codec_endpoint>;
++					bitclock-master = <&codec_endpoint>;
++					frame-master = <&codec_endpoint>;
++					dai-format = "i2s";
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++			allo-cs43130@30 {
++				#sound-dai-cells = <0>;
++				compatible = "allo,allo-cs43198";
++				clock44-gpio = <&gpio 5 0>;
++				clock48-gpio = <&gpio 6 0>;
++				reg = <0x30>;
++				port {
++					codec_endpoint: endpoint {
++					remote-endpoint = <&cpu_endpoint>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		boss2_dac: __overlay__ {
++			compatible = "audio-graph-card";
++			label = "Allo Boss2";
++			dais = <&cpu_port>;
++			status = "okay";
++		};
++	};
++};
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0392-Overlay-Update-Allo-Piano-Plus-dac-driver-for-5.4.y-.patch b/target/linux/bcm27xx/patches-5.10/950-0392-Overlay-Update-Allo-Piano-Plus-dac-driver-for-5.4.y-.patch
new file mode 100644
index 0000000000..41aca2bc1d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0392-Overlay-Update-Allo-Piano-Plus-dac-driver-for-5.4.y-.patch
@@ -0,0 +1,30 @@
+From b26fca3f72b9d79141a0355909602f5194dbd1b3 Mon Sep 17 00:00:00 2001
+From: paul-1 <6473457+paul-1@users.noreply.github.com>
+Date: Wed, 4 Nov 2020 19:17:48 -0500
+Subject: [PATCH] Overlay: Update Allo Piano Plus dac driver for 5.4.y
+ kernels.
+
+Create unique names for the two instances of the codec driver.
+
+Signed-off-by: Paul Hermann <paul@picoreplayer.org>
+---
+ .../dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts  | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/allo-piano-dac-plus-pcm512x-audio-overlay.dts
+@@ -23,12 +23,14 @@
+ 				#sound-dai-cells = <0>;
+ 				compatible = "ti,pcm5122";
+ 				reg = <0x4c>;
++				sound-name-prefix = "Main";
+ 				status = "okay";
+ 			};
+ 			allo_pcm5122_4d: pcm5122@4d {
+ 				#sound-dai-cells = <0>;
+ 				compatible = "ti,pcm5122";
+ 				reg = <0x4d>;
++				sound-name-prefix = "Sub";
+ 				status = "okay";
+ 			};
+ 		};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0393-media-bcm2835-unicam-Correctly-handle-error-propagat.patch b/target/linux/bcm27xx/patches-5.10/950-0393-media-bcm2835-unicam-Correctly-handle-error-propagat.patch
new file mode 100644
index 0000000000..455df46aac
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0393-media-bcm2835-unicam-Correctly-handle-error-propagat.patch
@@ -0,0 +1,27 @@
+From a9077829ddaaea3366c4ff9be8b98e7c85403a1c Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 2 Dec 2020 15:22:23 +0000
+Subject: [PATCH] media: bcm2835-unicam: Correctly handle error
+ propagation for stream on
+
+On a failure in start_streaming(), the error code would not propagate to
+the calling function on all conditions. This would cause the userland
+caller to not know of the failure.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1730,8 +1730,7 @@ err_disable_unicam:
+ 	unicam_disable(dev);
+ 	clk_disable_unprepare(dev->clock);
+ err_vpu_clock:
+-	ret = clk_set_min_rate(dev->vpu_clock, 0);
+-	if (ret)
++	if (clk_set_min_rate(dev->vpu_clock, 0))
+ 		unicam_err(dev, "failed to reset the VPU clock\n");
+ 	clk_disable_unprepare(dev->vpu_clock);
+ err_pm_put:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0394-media-bcm2835-unicam-Return-early-from-stop_streamin.patch b/target/linux/bcm27xx/patches-5.10/950-0394-media-bcm2835-unicam-Return-early-from-stop_streamin.patch
new file mode 100644
index 0000000000..d61fac705f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0394-media-bcm2835-unicam-Return-early-from-stop_streamin.patch
@@ -0,0 +1,64 @@
+From a95a3e417cf425d03b3a62c1b34730cfcb21b197 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 2 Dec 2020 15:26:09 +0000
+Subject: [PATCH] media: bcm2835-unicam: Return early from
+ stop_streaming() if stopped
+
+clk_disable_unprepare() is called unconditionally in stop_streaming().
+This is incorrect in the cases where start_streaming() fails, and
+unprepares all clocks as part of the failure cleanup. To avoid this,
+ensure that clk_disable_unprepare() is only called in stop_streaming()
+if the clocks are in a prepared state.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 16 +++++++++-------
+ 1 file changed, 9 insertions(+), 7 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -426,6 +426,8 @@ struct unicam_device {
+ 	struct clk *clock;
+ 	/* vpu clock handle */
+ 	struct clk *vpu_clock;
++	/* clock status for error handling */
++	bool clocks_enabled;
+ 	/* V4l2 device */
+ 	struct v4l2_device v4l2_dev;
+ 	struct media_device mdev;
+@@ -1724,6 +1726,7 @@ static int unicam_start_streaming(struct
+ 		goto err_disable_unicam;
+ 	}
+ 
++	dev->clocks_enabled = true;
+ 	return 0;
+ 
+ err_disable_unicam:
+@@ -1750,8 +1753,6 @@ static void unicam_stop_streaming(struct
+ 	node->streaming = false;
+ 
+ 	if (node->pad_id == IMAGE_PAD) {
+-		int ret;
+-
+ 		/*
+ 		 * Stop streaming the sensor and disable the peripheral.
+ 		 * We cannot continue streaming embedded data with the
+@@ -1762,12 +1763,13 @@ static void unicam_stop_streaming(struct
+ 
+ 		unicam_disable(dev);
+ 
+-		ret = clk_set_min_rate(dev->vpu_clock, 0);
+-		if (ret)
+-			unicam_err(dev, "failed to reset the min VPU clock\n");
++		if (dev->clocks_enabled) {
++			if (clk_set_min_rate(dev->vpu_clock, 0))
++				unicam_err(dev, "failed to reset the min VPU clock\n");
+ 
+-		clk_disable_unprepare(dev->vpu_clock);
+-		clk_disable_unprepare(dev->clock);
++			clk_disable_unprepare(dev->vpu_clock);
++			clk_disable_unprepare(dev->clock);
++		}
+ 		unicam_runtime_put(dev);
+ 
+ 	} else if (node->pad_id == METADATA_PAD) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0395-media-bcm2835-unicam-Clear-clock-state-when-stopping.patch b/target/linux/bcm27xx/patches-5.10/950-0395-media-bcm2835-unicam-Clear-clock-state-when-stopping.patch
new file mode 100644
index 0000000000..c74315f3fb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0395-media-bcm2835-unicam-Clear-clock-state-when-stopping.patch
@@ -0,0 +1,25 @@
+From 038ee7126dcfe172eefa1ee4c271af51fc9e633c Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 2 Dec 2020 16:48:41 +0000
+Subject: [PATCH] media: bcm2835-unicam: Clear clock state when
+ stopping streaming
+
+Commit 65e08c465020d4c5b51afb452efc2246d80fd66f failed to clear the
+clock state when the device stopped streaming. Fix this, as it might
+again cause the same problems when doing an unprepare.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1769,6 +1769,7 @@ static void unicam_stop_streaming(struct
+ 
+ 			clk_disable_unprepare(dev->vpu_clock);
+ 			clk_disable_unprepare(dev->clock);
++			dev->clocks_enabled = false;
+ 		}
+ 		unicam_runtime_put(dev);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch b/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch
new file mode 100644
index 0000000000..a7145c0c4e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch
@@ -0,0 +1,27 @@
+From 9cd85b8b4c18c913ac1d63eb2b6d13e3230516a3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 3 Dec 2020 13:44:42 +0000
+Subject: [PATCH] PCI: brcmstb: Advertise MSI-X support
+
+Although the BRCMSTB PCIe interface doesn't technically support the
+MSI-X spec, in practise it seems to work provided no more than 32
+MSI-Xs are required. Add the required flag to the driver to allow
+experimentation with devices that demand MSI-X support.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/pci/controller/pcie-brcmstb.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/pci/controller/pcie-brcmstb.c
++++ b/drivers/pci/controller/pcie-brcmstb.c
+@@ -463,7 +463,8 @@ static struct irq_chip brcm_msi_irq_chip
+ 
+ static struct msi_domain_info brcm_msi_domain_info = {
+ 	/* Multi MSI is supported by the controller, but not by this driver */
+-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
++	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
++		   MSI_FLAG_PCI_MSIX),
+ 	.chip	= &brcm_msi_irq_chip,
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0397-ARM-dts-CM4-audio-pins-are-not-connected.patch b/target/linux/bcm27xx/patches-5.10/950-0397-ARM-dts-CM4-audio-pins-are-not-connected.patch
new file mode 100644
index 0000000000..65b1a03af6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0397-ARM-dts-CM4-audio-pins-are-not-connected.patch
@@ -0,0 +1,21 @@
+From 3b2a09e95b28f9fd30bc569135d4e939d3d5eb7f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 7 Dec 2020 09:35:57 +0000
+Subject: [PATCH] ARM: dts: CM4 audio pins are not connected
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -548,8 +548,6 @@
+ 
+ &gpio {
+ 	audio_pins: audio_pins {
+-		brcm,pins = <40 41>;
+-		brcm,function = <4>;
+ 	};
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0398-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch b/target/linux/bcm27xx/patches-5.10/950-0398-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch
new file mode 100644
index 0000000000..8c9f55aa13
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0398-overlays-Add-PCF85063-and-PCF85063A-to-i2c-rtc.patch
@@ -0,0 +1,339 @@
+From ba93a3eeaf4101166feec31b4a2799b6d4aee640 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 7 Dec 2020 08:49:53 +0000
+Subject: [PATCH] overlays: Add PCF85063 and PCF85063A to i2c-rtc
+
+Add support for the PCF85063 and PCF85063A RTC devices to the
+i2c-rtc overlay.
+
+Also enable the device to be used on i2c0 (i2c_vc) on GPIOs 0&1 (use
+parameter "i2c0") and GPIOs 44 & 45 (use parameter "i2c_csi_dsi").
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             |  8 ++
+ .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 98 ++++++++++---------
+ 2 files changed, 61 insertions(+), 45 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1257,6 +1257,10 @@ Params: abx80x                  Select o
+ 
+         pcf2129                 Select the PCF2129 device
+ 
++        pcf85063                Select the PCF85363 device
++
++        pcf85063a               Select the PCF85363A device
++
+         pcf8523                 Select the PCF8523 device
+ 
+         pcf85363                Select the PCF85363 device
+@@ -1269,6 +1273,10 @@ Params: abx80x                  Select o
+ 
+         sd3078                  Select the ZXW Shenzhen whwave SD3078 device
+ 
++        i2c0                    Choose the I2C0 bus on GPIOs 0&1
++
++        i2c_csi_dsi             Choose the I2C0 bus on GPIOs 44&45
++
+         addr                    Sets the address for the RTC. Note that the
+                                 device must be configured to use the specified
+                                 address.
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -6,235 +6,238 @@
+ 	compatible = "brcm,bcm2835";
+ 
+ 	fragment@0 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			abx80x: abx80x@69 {
+ 				compatible = "abracon,abx80x";
+ 				reg = <0x69>;
+ 				abracon,tc-diode = "standard";
+ 				abracon,tc-resistor = <0>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@1 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds1307: ds1307@68 {
+ 				compatible = "dallas,ds1307";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@2 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds1339: ds1339@68 {
+ 				compatible = "dallas,ds1339";
+ 				trickle-resistor-ohms = <0>;
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@3 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			ds3231: ds3231@68 {
+ 				compatible = "maxim,ds3231";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@4 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			mcp7940x: mcp7940x@6f {
+ 				compatible = "microchip,mcp7940x";
+ 				reg = <0x6f>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@5 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			mcp7941x: mcp7941x@6f {
+ 				compatible = "microchip,mcp7941x";
+ 				reg = <0x6f>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@6 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf2127@51 {
+ 				compatible = "nxp,pcf2127";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@7 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf8523: pcf8523@68 {
+ 				compatible = "nxp,pcf8523";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@8 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf8563: pcf8563@51 {
+ 				compatible = "nxp,pcf8563";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@9 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			m41t62: m41t62@68 {
+ 				compatible = "st,m41t62";
+ 				reg = <0x68>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@10 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			rv3028: rv3028@52 {
+ 				compatible = "microcrystal,rv3028";
+ 				reg = <0x52>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@11 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf2129@51 {
+ 				compatible = "nxp,pcf2129";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@12 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 	       __dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			pcf85363@51 {
+ 				compatible = "nxp,pcf85363";
+ 				reg = <0x51>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@13 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			rv1805: rv1805@69 {
+ 				compatible = "microcrystal,rv1805";
+ 				reg = <0x69>;
+ 				abracon,tc-diode = "standard";
+ 				abracon,tc-resistor = <0>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
+ 	fragment@14 {
+-		target = <&i2c_arm>;
++		target = <&i2cbus>;
+ 		__dormant__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+-			status = "okay";
+ 
+ 			sd3078: sd3078@32 {
+ 				compatible = "whwave,sd3078";
+ 				reg = <0x32>;
+-				status = "okay";
+ 			};
+ 		};
+ 	};
+ 
++	fragment@15 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063@51 {
++				compatible = "nxp,pcf85063";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@16 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063a@51 {
++				compatible = "nxp,pcf85063a";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	frag100: fragment@100 {
++		target = <&i2c_arm>;
++		i2cbus: __overlay__ {
++			status = "okay";
++		};
++	};
++
+ 	__overrides__ {
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+@@ -251,6 +254,11 @@
+ 		pcf85363 = <0>,"+12";
+ 		rv1805 = <0>,"+13";
+ 		sd3078 = <0>,"+14";
++		pcf85063 = <0>,"+15";
++		pcf85063a = <0>,"+16";
++
++		i2c0 = <&frag100>, "target:0=",<&i2c0>;
++		i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>;
+ 
+ 		addr = <&abx80x>, "reg:0",
+ 		       <&ds1307>, "reg:0",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0399-overlays-Fix-cut-and-paste-error-in-README.patch b/target/linux/bcm27xx/patches-5.10/950-0399-overlays-Fix-cut-and-paste-error-in-README.patch
new file mode 100644
index 0000000000..ba4453c1cc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0399-overlays-Fix-cut-and-paste-error-in-README.patch
@@ -0,0 +1,24 @@
+From 4e88fb586d6b2e062c1bb9613fa9aaf4ee52fe79 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 7 Dec 2020 17:18:39 +0000
+Subject: [PATCH] overlays: Fix cut-and-paste error in README
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1257,9 +1257,9 @@ Params: abx80x                  Select o
+ 
+         pcf2129                 Select the PCF2129 device
+ 
+-        pcf85063                Select the PCF85363 device
++        pcf85063                Select the PCF85063 device
+ 
+-        pcf85063a               Select the PCF85363A device
++        pcf85063a               Select the PCF85063A device
+ 
+         pcf8523                 Select the PCF8523 device
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0400-staging-bcm2835-codec-Ensure-OUTPUT-timestamps-are-a.patch b/target/linux/bcm27xx/patches-5.10/950-0400-staging-bcm2835-codec-Ensure-OUTPUT-timestamps-are-a.patch
new file mode 100644
index 0000000000..e4a5eb832c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0400-staging-bcm2835-codec-Ensure-OUTPUT-timestamps-are-a.patch
@@ -0,0 +1,53 @@
+From 35e371f270fb14320de11b93cbc0f1e1024ff58c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 4 Nov 2020 18:31:02 +0000
+Subject: [PATCH] staging/bcm2835-codec: Ensure OUTPUT timestamps are
+ always forwarded
+
+The firmware by default tries to ensure that decoded frame
+timestamps always increment. This is counter to the V4L2 API
+which wants exactly the OUTPUT queue timestamps passed to the
+CAPTURE queue buffers.
+
+Disable the firmware option.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c              | 13 +++++++++++++
+ .../vc04_services/vchiq-mmal/mmal-parameters.h      |  3 +++
+ 2 files changed, 16 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -2001,6 +2001,19 @@ static int bcm2835_codec_create_componen
+ 				      MMAL_PARAMETER_ZERO_COPY, &enable,
+ 				      sizeof(enable));
+ 
++	if (dev->role == DECODE) {
++		/*
++		 * Disable firmware option that ensures decoded timestamps
++		 * always increase.
++		 */
++		enable = 0;
++		vchiq_mmal_port_parameter_set(dev->instance,
++					      &ctx->component->output[0],
++					      MMAL_PARAMETER_VIDEO_VALIDATE_TIMESTAMPS,
++					      &enable,
++					      sizeof(enable));
++	}
++
+ 	setup_mmal_port_format(ctx, &ctx->q_data[V4L2_M2M_SRC],
+ 			       &ctx->component->input[0]);
+ 
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -674,6 +674,9 @@ enum mmal_parameter_video_type {
+ 
+ 	/**< Take a @ref MMAL_PARAMETER_BOOLEAN_T */
+ 	MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
++
++	/**< Take a @ref MMAL_PARAMETER_BOOLEAN_T */
++	MMAL_PARAMETER_VIDEO_VALIDATE_TIMESTAMPS,
+ };
+ 
+ /** Valid mirror modes */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0401-net-lan78xx-Ack-pending-PHY-ints-when-resetting.patch b/target/linux/bcm27xx/patches-5.10/950-0401-net-lan78xx-Ack-pending-PHY-ints-when-resetting.patch
new file mode 100644
index 0000000000..16830c00a2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0401-net-lan78xx-Ack-pending-PHY-ints-when-resetting.patch
@@ -0,0 +1,32 @@
+From 4f060bf5900e8f17fb8cb8508dc08006b2a844b1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 15 Dec 2020 16:38:37 +0000
+Subject: [PATCH] net: lan78xx: Ack pending PHY ints when resetting
+
+lan78xx_link_reset explicitly clears the MAC's view of the PHY's IRQ
+status. In doing so it potentially leaves the PHY with a pending
+interrupt that will never be acknowledged, at which point no further
+interrupts will be generated.
+
+Avoid the problem by acknowledging any pending PHY interrupt after
+clearing the MAC's status bit.
+
+See: https://github.com/raspberrypi/linux/issues/2937
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/net/usb/lan78xx.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -1181,6 +1181,9 @@ static int lan78xx_link_reset(struct lan
+ 	if (unlikely(ret < 0))
+ 		return -EIO;
+ 
++	/* Acknowledge any pending PHY interrupt, lest it be the last */
++	phy_read(phydev, LAN88XX_INT_STS);
++
+ 	phy_read_status(phydev);
+ 
+ 	if (!phydev->link && dev->link_on) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0402-overlays-mpu6050-Add-addr-parameter.patch b/target/linux/bcm27xx/patches-5.10/950-0402-overlays-mpu6050-Add-addr-parameter.patch
new file mode 100644
index 0000000000..3806b8fa9f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0402-overlays-mpu6050-Add-addr-parameter.patch
@@ -0,0 +1,36 @@
+From 3e0ea72cab201faea51f8cdb490562151a3f01fd Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 15 Dec 2020 17:02:17 +0000
+Subject: [PATCH] overlays: mpu6050: Add 'addr' parameter
+
+The mpu6050 starts up at address 0x68 by default, but can be set to
+0x69 if the ADO pin is pulled high. Give the overlay an addr parameter
+to allow devices at the alternate address to be used.
+
+See: https://github.com/Hexxeh/rpi-firmware/issues/252
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README              | 1 +
+ arch/arm/boot/dts/overlays/mpu6050-overlay.dts | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1920,6 +1920,7 @@ Name:   mpu6050
+ Info:   Overlay for i2c connected mpu6050 imu
+ Load:   dtoverlay=mpu6050,<param>=<val>
+ Params: interrupt               GPIO pin for interrupt (default 4)
++        addr                    I2C address of the device (default 0x68)
+ 
+ 
+ Name:   mz61581
+--- a/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mpu6050-overlay.dts
+@@ -24,5 +24,6 @@
+ 
+         __overrides__ {
+                 interrupt = <&mpu6050>,"interrupts:0";
++                addr = <&mpu6050>,"reg:0";
+         };
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0403-drm-vc4-Make-normalize_zpos-conditional-on-using-fkm.patch b/target/linux/bcm27xx/patches-5.10/950-0403-drm-vc4-Make-normalize_zpos-conditional-on-using-fkm.patch
new file mode 100644
index 0000000000..b93da878c1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0403-drm-vc4-Make-normalize_zpos-conditional-on-using-fkm.patch
@@ -0,0 +1,29 @@
+From a384e2c5d6e72e08e3d183b58ca8697f6665a793 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 15 Dec 2020 16:26:51 +0000
+Subject: [PATCH] drm/vc4: Make normalize_zpos conditional on using
+ fkms
+
+Eric's view was that there was no point in having zpos
+support on vc4 as all the planes had the same functionality.
+
+Can be later squashed into (and fixes):
+drm/vc4: Add firmware-kms mode
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_kms.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -923,7 +923,8 @@ int vc4_kms_load(struct drm_device *dev)
+ 	dev->mode_config.preferred_depth = 24;
+ 	dev->mode_config.async_page_flip = true;
+ 	dev->mode_config.allow_fb_modifiers = true;
+-	dev->mode_config.normalize_zpos = true;
++	if (vc4->firmware_kms)
++		dev->mode_config.normalize_zpos = true;
+ 
+ 	ret = vc4_ctm_obj_init(vc4);
+ 	if (ret)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0404-overlays-Add-missing-addresses-to-ads1015-ads1115.patch b/target/linux/bcm27xx/patches-5.10/950-0404-overlays-Add-missing-addresses-to-ads1015-ads1115.patch
new file mode 100644
index 0000000000..346c1017e0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0404-overlays-Add-missing-addresses-to-ads1015-ads1115.patch
@@ -0,0 +1,41 @@
+From f3f0143ace6866e7370e1cec6ff04f0e6ede11dd Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 16 Dec 2020 09:28:17 +0000
+Subject: [PATCH] overlays: Add missing addresses to ads1015/ads1115
+
+The overlays for the ads1015 and ads1115 I2C ADCs omitted the addresses
+in the main device node names. As well as breaking the conventions for
+I2C devices, this prevents the firmware from renaming them when the
+"reg" property is modified, which in turn stops the overlays from being
+instantiated multiple times.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=294465
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/ads1015-overlay.dts | 2 +-
+ arch/arm/boot/dts/overlays/ads1115-overlay.dts | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/ads1015-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ads1015-overlay.dts
+@@ -13,7 +13,7 @@
+             #address-cells = <1>;
+             #size-cells = <0>;
+             status = "okay";
+-            ads1015: ads1015 {
++            ads1015: ads1015@48 {
+                 compatible = "ti,ads1015";
+                 status = "okay";
+                 #address-cells = <1>;
+--- a/arch/arm/boot/dts/overlays/ads1115-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ads1115-overlay.dts
+@@ -15,7 +15,7 @@
+ 			#size-cells = <0>;
+ 			status = "okay";
+ 
+-			ads1115: ads1115 {
++			ads1115: ads1115@48 {
+ 				compatible = "ti,ads1115";
+ 				status = "okay";
+ 				#address-cells = <1>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0405-media-i2c-imx477-Selection-compliance-fixes.patch b/target/linux/bcm27xx/patches-5.10/950-0405-media-i2c-imx477-Selection-compliance-fixes.patch
new file mode 100644
index 0000000000..1a206b5214
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0405-media-i2c-imx477-Selection-compliance-fixes.patch
@@ -0,0 +1,80 @@
+From cdbecdb538b1854fd61213c490da8b2ded81b5d8 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 9 Dec 2020 11:30:12 +0000
+Subject: [PATCH] media: i2c: imx477: Selection compliance fixes
+
+To comply with the intended usage of the V4L2 selection target when
+used to retrieve a sensor image properties, adjust the rectangles
+returned by the imx477 driver.
+
+The top/left crop coordinates of the TGT_CROP rectangle were set to
+(0, 0) instead of (8, 16) which is the offset from the larger physical
+pixel array rectangle. This was also a mismatch with the default values
+crop rectangle value, so this is corrected. Found with v4l2-compliance.
+
+While at it, add V4L2_SEL_TGT_CROP_BOUNDS support: CROP_DEFAULT and
+CROP_BOUNDS have the same size as the non-active pixels are not readable
+using the selection API. Found with v4l2-compliance.
+
+This commit mirrors 543790f777ba1b3264c168c653db6d415e7c983f done for
+the imx219 sensor.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 17 +++++++++--------
+ 1 file changed, 9 insertions(+), 8 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -900,8 +900,8 @@ static const struct imx477_mode supporte
+ 		.height = 3040,
+ 		.line_length_pix = 0x5dc0,
+ 		.crop = {
+-			.left = 0,
+-			.top = 0,
++			.left = IMX477_PIXEL_ARRAY_LEFT,
++			.top = IMX477_PIXEL_ARRAY_TOP,
+ 			.width = 4056,
+ 			.height = 3040,
+ 		},
+@@ -924,8 +924,8 @@ static const struct imx477_mode supporte
+ 		.height = 1520,
+ 		.line_length_pix = 0x31c4,
+ 		.crop = {
+-			.left = 0,
+-			.top = 0,
++			.left = IMX477_PIXEL_ARRAY_LEFT,
++			.top = IMX477_PIXEL_ARRAY_TOP,
+ 			.width = 4056,
+ 			.height = 3040,
+ 		},
+@@ -948,8 +948,8 @@ static const struct imx477_mode supporte
+ 		.height = 1080,
+ 		.line_length_pix = 0x31c4,
+ 		.crop = {
+-			.left = 0,
+-			.top = 440,
++			.left = IMX477_PIXEL_ARRAY_LEFT,
++			.top = IMX477_PIXEL_ARRAY_TOP + 440,
+ 			.width = 4056,
+ 			.height = 2600,
+ 		},
+@@ -983,8 +983,8 @@ static const struct imx477_mode supporte
+ 			 * rectangle once the driver is expanded to represent
+ 			 * its processing blocks with multiple subdevs.
+ 			 */
+-			.left = 4,
+-			.top = 0,
++			.left = IMX477_PIXEL_ARRAY_LEFT + 4,
++			.top = IMX477_PIXEL_ARRAY_TOP,
+ 			.width = 4052,
+ 			.height = 3040,
+ 		},
+@@ -1696,6 +1696,7 @@ static int imx477_get_selection(struct v
+ 		return 0;
+ 
+ 	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
+ 		sel->r.left = IMX477_PIXEL_ARRAY_LEFT;
+ 		sel->r.top = IMX477_PIXEL_ARRAY_TOP;
+ 		sel->r.width = IMX477_PIXEL_ARRAY_WIDTH;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0406-staging-vc04_services-codec-Add-support-for-CID-MPEG.patch b/target/linux/bcm27xx/patches-5.10/950-0406-staging-vc04_services-codec-Add-support-for-CID-MPEG.patch
new file mode 100644
index 0000000000..ca3d454f4b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0406-staging-vc04_services-codec-Add-support-for-CID-MPEG.patch
@@ -0,0 +1,64 @@
+From 8c2356e38c9a51356a9f0eacf08f4de6521ad0bd Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Sun, 13 Dec 2020 16:45:58 +0000
+Subject: [PATCH] staging/vc04_services/codec: Add support for CID
+ MPEG_HEADER_MODE
+
+Control V4L2_CID_MPEG_VIDEO_HEADER_MODE controls whether the encoder
+is meant to emit the header bytes as a separate packet or with the
+first encoded frame.
+Add support for it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c         | 18 +++++++++++++++++-
+ 1 file changed, 17 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1692,6 +1692,17 @@ static int bcm2835_codec_s_ctrl(struct v
+ 						    sizeof(ctrl->val));
+ 		break;
+ 
++	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
++		if (!ctx->component)
++			break;
++
++		ret = vchiq_mmal_port_parameter_set(ctx->dev->instance,
++						    &ctx->component->output[0],
++						    MMAL_PARAMETER_VIDEO_ENCODE_HEADERS_WITH_FRAME,
++						    &ctrl->val,
++						    sizeof(ctrl->val));
++		break;
++
+ 	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
+ 		if (!ctx->component)
+ 			break;
+@@ -1963,6 +1974,7 @@ static int bcm2835_codec_set_ctrls(struc
+ 	const u32 control_ids[] = {
+ 		V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
+ 		V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER,
++		V4L2_CID_MPEG_VIDEO_HEADER_MODE,
+ 		V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
+ 		V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+ 		V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+@@ -2515,7 +2527,7 @@ static int bcm2835_codec_open(struct fil
+ 	hdl = &ctx->hdl;
+ 	if (dev->role == ENCODE) {
+ 		/* Encode controls */
+-		v4l2_ctrl_handler_init(hdl, 7);
++		v4l2_ctrl_handler_init(hdl, 9);
+ 
+ 		v4l2_ctrl_new_std_menu(hdl, &bcm2835_codec_ctrl_ops,
+ 				       V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
+@@ -2525,6 +2537,10 @@ static int bcm2835_codec_open(struct fil
+ 				  V4L2_CID_MPEG_VIDEO_BITRATE,
+ 				  25 * 1000, 25 * 1000 * 1000,
+ 				  25 * 1000, 10 * 1000 * 1000);
++		v4l2_ctrl_new_std_menu(hdl, &bcm2835_codec_ctrl_ops,
++				       V4L2_CID_MPEG_VIDEO_HEADER_MODE,
++				       V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
++				       0, V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
+ 		v4l2_ctrl_new_std(hdl, &bcm2835_codec_ctrl_ops,
+ 				  V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER,
+ 				  0, 1,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0407-staging-vc04_services-codec-Clear-last-buf-dequeued-.patch b/target/linux/bcm27xx/patches-5.10/950-0407-staging-vc04_services-codec-Clear-last-buf-dequeued-.patch
new file mode 100644
index 0000000000..a64930c1cb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0407-staging-vc04_services-codec-Clear-last-buf-dequeued-.patch
@@ -0,0 +1,37 @@
+From b35ad716845db394d9850d123d3617653f26a921 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Sun, 13 Dec 2020 16:54:43 +0000
+Subject: [PATCH] staging/vc04_services/codec: Clear last buf dequeued
+ flag on START
+
+It appears that the V4L2 M2M framework requires the driver to manually
+call vb2_clear_last_buffer_dequeued on the CAPTURE queue during a
+V4L2_DEC_CMD_START.
+Add such a call.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1780,6 +1780,7 @@ static int vidioc_decoder_cmd(struct fil
+ {
+ 	struct bcm2835_codec_ctx *ctx = file2ctx(file);
+ 	struct bcm2835_codec_q_data *q_data = &ctx->q_data[V4L2_M2M_SRC];
++	struct vb2_queue *dst_vq;
+ 	int ret;
+ 
+ 	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s, cmd %u", __func__,
+@@ -1815,7 +1816,9 @@ static int vidioc_decoder_cmd(struct fil
+ 		break;
+ 
+ 	case V4L2_DEC_CMD_START:
+-		/* Do we need to do anything here? */
++		dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
++					 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
++		vb2_clear_last_buffer_dequeued(dst_vq);
+ 		break;
+ 
+ 	default:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0408-drm-atomic-Pass-the-full-state-to-CRTC-atomic-enable.patch b/target/linux/bcm27xx/patches-5.10/950-0408-drm-atomic-Pass-the-full-state-to-CRTC-atomic-enable.patch
new file mode 100644
index 0000000000..3953a1d0ab
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0408-drm-atomic-Pass-the-full-state-to-CRTC-atomic-enable.patch
@@ -0,0 +1,1183 @@
+From 41661de0a014d606f6f55dd030a14bc341e677fc Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 8 Oct 2020 14:44:08 +0200
+Subject: [PATCH] drm/atomic: Pass the full state to CRTC atomic
+ enable/disable
+
+Commit 351f950db4ab28c321a1bd4b92e4bb03e34c4703 upstream.
+
+If the CRTC driver ever needs to access the full DRM state, it can't do so
+at atomic_enable / atomic_disable time since drm_atomic_helper_swap_state
+will have cleared the pointer from the struct drm_crtc_state to the struct
+drm_atomic_state before calling those hooks.
+
+In order to allow that, let's pass the full DRM state to atomic_enable and
+atomic_disable. The conversion was done using the coccinelle script below,
+built tested on all the drivers and actually tested on vc4.
+
+virtual report
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+identifier dev, state;
+identifier crtc, crtc_state;
+@@
+
+ disable_outputs(struct drm_device *dev, struct drm_atomic_state *state)
+ {
+ 	<...
+-	FUNCS->atomic_disable(crtc, crtc_state);
++	FUNCS->atomic_disable(crtc, state);
+ 	...>
+ }
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+identifier dev, state;
+identifier crtc, crtc_state;
+@@
+
+ drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, struct drm_atomic_state *state)
+ {
+ 	<...
+-	FUNCS->atomic_enable(crtc, crtc_state);
++	FUNCS->atomic_enable(crtc, state);
+ 	...>
+ }
+
+@@
+identifier crtc, old_state;
+@@
+
+ struct drm_crtc_helper_funcs {
+	...
+-	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
++	void (*atomic_enable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
+	...
+-	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
++	void (*atomic_disable)(struct drm_crtc *crtc, struct drm_atomic_state *state);
+	...
+}
+
+@ crtc_atomic_func @
+identifier helpers;
+identifier func;
+@@
+
+(
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_enable = func,
+	...,
+};
+|
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_disable = func,
+	...,
+};
+)
+
+@ ignores_old_state @
+identifier crtc_atomic_func.func;
+identifier crtc, old_state;
+@@
+
+void func(struct drm_crtc *crtc,
+		struct drm_crtc_state *old_state)
+{
+	... when != old_state
+}
+
+@ adds_old_state depends on crtc_atomic_func && !ignores_old_state @
+identifier crtc_atomic_func.func;
+identifier crtc, old_state;
+@@
+
+void func(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
+{
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
+	...
+}
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+expression E;
+type T;
+@@
+
+void func(...)
+{
+	...
+-	T state = E;
++	T crtc_state = E;
+	<+...
+-	state
++	crtc_state
+	...+>
+
+}
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+type T;
+@@
+
+void func(...)
+{
+	...
+-	T state;
++	T crtc_state;
+	<+...
+-	state
++	crtc_state
+	...+>
+
+}
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+identifier old_state;
+identifier crtc;
+@@
+
+void func(struct drm_crtc *crtc,
+-	       struct drm_crtc_state *old_state
++	       struct drm_atomic_state *state
+	       )
+		{ ... }
+
+@ include depends on adds_old_state @
+@@
+
+ #include <drm/drm_atomic.h>
+
+@ no_include depends on !include && adds_old_state @
+@@
+
++ #include <drm/drm_atomic.h>
+  #include <drm/...>
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Link: https://patchwork.freedesktop.org/patch/msgid/845aa10ef171fc0ea060495efef142a0c13f7870.1602161031.git-series.maxime@cerno.tech
+---
+ drivers/gpu/drm/arc/arcpgu_crtc.c                |  4 ++--
+ drivers/gpu/drm/arm/display/komeda/komeda_crtc.c |  8 ++++++--
+ drivers/gpu/drm/arm/hdlcd_crtc.c                 |  4 ++--
+ drivers/gpu/drm/arm/malidp_crtc.c                |  6 ++++--
+ drivers/gpu/drm/armada/armada_crtc.c             |  8 ++++++--
+ drivers/gpu/drm/ast/ast_mode.c                   |  6 ++++--
+ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c   |  4 ++--
+ drivers/gpu/drm/drm_atomic_helper.c              |  4 ++--
+ drivers/gpu/drm/drm_simple_kms_helper.c          |  4 ++--
+ drivers/gpu/drm/exynos/exynos_drm_crtc.c         |  4 ++--
+ drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c       |  6 ++++--
+ drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c   |  4 ++--
+ drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c  |  4 ++--
+ drivers/gpu/drm/imx/dcss/dcss-crtc.c             |  9 +++++++--
+ drivers/gpu/drm/imx/ipuv3-crtc.c                 |  6 ++++--
+ drivers/gpu/drm/ingenic/ingenic-drm-drv.c        |  4 ++--
+ drivers/gpu/drm/mediatek/mtk_drm_crtc.c          |  4 ++--
+ drivers/gpu/drm/meson/meson_crtc.c               |  8 ++++----
+ drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c         |  7 +++++--
+ drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c        |  4 ++--
+ drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c        |  4 ++--
+ drivers/gpu/drm/mxsfb/mxsfb_kms.c                |  4 ++--
+ drivers/gpu/drm/omapdrm/omap_crtc.c              |  4 ++--
+ drivers/gpu/drm/qxl/qxl_display.c                |  4 ++--
+ drivers/gpu/drm/rcar-du/rcar_du_crtc.c           |  6 ++++--
+ drivers/gpu/drm/rockchip/rockchip_drm_vop.c      |  6 ++++--
+ drivers/gpu/drm/sti/sti_crtc.c                   |  4 ++--
+ drivers/gpu/drm/stm/ltdc.c                       |  4 ++--
+ drivers/gpu/drm/sun4i/sun4i_crtc.c               |  4 ++--
+ drivers/gpu/drm/tegra/dc.c                       |  8 ++++----
+ drivers/gpu/drm/tidss/tidss_crtc.c               |  6 ++++--
+ drivers/gpu/drm/tilcdc/tilcdc_crtc.c             |  4 ++--
+ drivers/gpu/drm/vboxvideo/vbox_mode.c            |  4 ++--
+ drivers/gpu/drm/vc4/vc4_crtc.c                   |  8 ++++++--
+ drivers/gpu/drm/vc4/vc4_txp.c                    |  9 +++++++--
+ drivers/gpu/drm/virtio/virtgpu_display.c         |  4 ++--
+ drivers/gpu/drm/vkms/vkms_crtc.c                 |  4 ++--
+ drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c              |  4 ++--
+ drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c             |  4 ++--
+ drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c             |  4 ++--
+ drivers/gpu/drm/xlnx/zynqmp_disp.c               |  6 ++++--
+ drivers/gpu/drm/zte/zx_vou.c                     |  4 ++--
+ include/drm/drm_modeset_helper_vtables.h         | 13 ++-----------
+ 43 files changed, 131 insertions(+), 99 deletions(-)
+
+--- a/drivers/gpu/drm/arc/arcpgu_crtc.c
++++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
+@@ -116,7 +116,7 @@ static void arc_pgu_crtc_mode_set_nofb(s
+ }
+ 
+ static void arc_pgu_crtc_atomic_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ 	struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
+ 
+@@ -127,7 +127,7 @@ static void arc_pgu_crtc_atomic_enable(s
+ }
+ 
+ static void arc_pgu_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ 	struct arcpgu_drm_private *arcpgu = crtc_to_arcpgu_priv(crtc);
+ 
+--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
++++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+@@ -273,8 +273,10 @@ komeda_crtc_do_flush(struct drm_crtc *cr
+ 
+ static void
+ komeda_crtc_atomic_enable(struct drm_crtc *crtc,
+-			  struct drm_crtc_state *old)
++			  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state,
++								   crtc);
+ 	pm_runtime_get_sync(crtc->dev->dev);
+ 	komeda_crtc_prepare(to_kcrtc(crtc));
+ 	drm_crtc_vblank_on(crtc);
+@@ -319,8 +321,10 @@ komeda_crtc_flush_and_wait_for_flip_done
+ 
+ static void
+ komeda_crtc_atomic_disable(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old)
++			   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state,
++								   crtc);
+ 	struct komeda_crtc *kcrtc = to_kcrtc(crtc);
+ 	struct komeda_crtc_state *old_st = to_kcrtc_st(old);
+ 	struct komeda_pipeline *master = kcrtc->master;
+--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
++++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
+@@ -168,7 +168,7 @@ static void hdlcd_crtc_mode_set_nofb(str
+ }
+ 
+ static void hdlcd_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
+ 
+@@ -179,7 +179,7 @@ static void hdlcd_crtc_atomic_enable(str
+ }
+ 
+ static void hdlcd_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct hdlcd_drm_private *hdlcd = crtc_to_hdlcd_priv(crtc);
+ 
+--- a/drivers/gpu/drm/arm/malidp_crtc.c
++++ b/drivers/gpu/drm/arm/malidp_crtc.c
+@@ -46,7 +46,7 @@ static enum drm_mode_status malidp_crtc_
+ }
+ 
+ static void malidp_crtc_atomic_enable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
+ 	struct malidp_hw_device *hwdev = malidp->dev;
+@@ -70,8 +70,10 @@ static void malidp_crtc_atomic_enable(st
+ }
+ 
+ static void malidp_crtc_atomic_disable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
+ 	struct malidp_hw_device *hwdev = malidp->dev;
+ 	int err;
+--- a/drivers/gpu/drm/armada/armada_crtc.c
++++ b/drivers/gpu/drm/armada/armada_crtc.c
+@@ -467,8 +467,10 @@ static void armada_drm_crtc_atomic_flush
+ }
+ 
+ static void armada_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ 	struct drm_pending_vblank_event *event;
+ 
+@@ -503,8 +505,10 @@ static void armada_drm_crtc_atomic_disab
+ }
+ 
+ static void armada_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_state)
++					  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ 
+ 	DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+--- a/drivers/gpu/drm/ast/ast_mode.c
++++ b/drivers/gpu/drm/ast/ast_mode.c
+@@ -793,7 +793,7 @@ ast_crtc_helper_atomic_flush(struct drm_
+ 
+ static void
+ ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state)
++			      struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct ast_private *ast = to_ast_private(dev);
+@@ -816,8 +816,10 @@ ast_crtc_helper_atomic_enable(struct drm
+ 
+ static void
+ ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
+-			       struct drm_crtc_state *old_crtc_state)
++			       struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct ast_private *ast = to_ast_private(dev);
+ 
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+@@ -165,7 +165,7 @@ atmel_hlcdc_crtc_mode_valid(struct drm_c
+ }
+ 
+ static void atmel_hlcdc_crtc_atomic_disable(struct drm_crtc *c,
+-					    struct drm_crtc_state *old_state)
++					    struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = c->dev;
+ 	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+@@ -200,7 +200,7 @@ static void atmel_hlcdc_crtc_atomic_disa
+ }
+ 
+ static void atmel_hlcdc_crtc_atomic_enable(struct drm_crtc *c,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = c->dev;
+ 	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -1093,7 +1093,7 @@ disable_outputs(struct drm_device *dev,
+ 		if (new_crtc_state->enable && funcs->prepare)
+ 			funcs->prepare(crtc);
+ 		else if (funcs->atomic_disable)
+-			funcs->atomic_disable(crtc, old_crtc_state);
++			funcs->atomic_disable(crtc, old_state);
+ 		else if (funcs->disable)
+ 			funcs->disable(crtc);
+ 		else if (funcs->dpms)
+@@ -1358,7 +1358,7 @@ void drm_atomic_helper_commit_modeset_en
+ 			DRM_DEBUG_ATOMIC("enabling [CRTC:%d:%s]\n",
+ 					 crtc->base.id, crtc->name);
+ 			if (funcs->atomic_enable)
+-				funcs->atomic_enable(crtc, old_crtc_state);
++				funcs->atomic_enable(crtc, old_state);
+ 			else if (funcs->commit)
+ 				funcs->commit(crtc);
+ 		}
+--- a/drivers/gpu/drm/drm_simple_kms_helper.c
++++ b/drivers/gpu/drm/drm_simple_kms_helper.c
+@@ -99,7 +99,7 @@ static int drm_simple_kms_crtc_check(str
+ }
+ 
+ static void drm_simple_kms_crtc_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ 	struct drm_plane *plane;
+ 	struct drm_simple_display_pipe *pipe;
+@@ -113,7 +113,7 @@ static void drm_simple_kms_crtc_enable(s
+ }
+ 
+ static void drm_simple_kms_crtc_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ 	struct drm_simple_display_pipe *pipe;
+ 
+--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
++++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+@@ -19,7 +19,7 @@
+ #include "exynos_drm_plane.h"
+ 
+ static void exynos_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_state)
++					  struct drm_atomic_state *state)
+ {
+ 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ 
+@@ -30,7 +30,7 @@ static void exynos_drm_crtc_atomic_enabl
+ }
+ 
+ static void exynos_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ 
+--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
++++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
+@@ -43,8 +43,10 @@ static void fsl_dcu_drm_crtc_atomic_flus
+ }
+ 
+ static void fsl_dcu_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_crtc_state)
++					struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+ 
+@@ -62,7 +64,7 @@ static void fsl_dcu_drm_crtc_atomic_disa
+ }
+ 
+ static void fsl_dcu_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
++++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
+@@ -172,7 +172,7 @@ static void hibmc_crtc_dpms(struct drm_c
+ }
+ 
+ static void hibmc_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	unsigned int reg;
+ 	struct hibmc_drm_private *priv = crtc->dev->dev_private;
+@@ -191,7 +191,7 @@ static void hibmc_crtc_atomic_enable(str
+ }
+ 
+ static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	unsigned int reg;
+ 	struct hibmc_drm_private *priv = crtc->dev->dev_private;
+--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
++++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+@@ -436,7 +436,7 @@ static void ade_dump_regs(void __iomem *
+ #endif
+ 
+ static void ade_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
+ 	struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
+@@ -459,7 +459,7 @@ static void ade_crtc_atomic_enable(struc
+ }
+ 
+ static void ade_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
+ 	struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
+--- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c
++++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
+@@ -3,6 +3,7 @@
+  * Copyright 2019 NXP.
+  */
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_vblank.h>
+ #include <linux/platform_device.h>
+@@ -77,8 +78,10 @@ static void dcss_crtc_atomic_flush(struc
+ }
+ 
+ static void dcss_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct dcss_crtc *dcss_crtc = container_of(crtc, struct dcss_crtc,
+ 						   base);
+ 	struct dcss_dev *dcss = dcss_crtc->base.dev->dev_private;
+@@ -111,8 +114,10 @@ static void dcss_crtc_atomic_enable(stru
+ }
+ 
+ static void dcss_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_crtc_state)
++				     struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct dcss_crtc *dcss_crtc = container_of(crtc, struct dcss_crtc,
+ 						   base);
+ 	struct dcss_dev *dcss = dcss_crtc->base.dev->dev_private;
+--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
++++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
+@@ -47,7 +47,7 @@ static inline struct ipu_crtc *to_ipu_cr
+ }
+ 
+ static void ipu_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+ 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
+@@ -79,8 +79,10 @@ static void ipu_crtc_disable_planes(stru
+ }
+ 
+ static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+ 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
+ 
+--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
++++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+@@ -112,7 +112,7 @@ static inline struct ingenic_drm *drm_cr
+ }
+ 
+ static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+ 
+@@ -126,7 +126,7 @@ static void ingenic_drm_crtc_atomic_enab
+ }
+ 
+ static void ingenic_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+-					    struct drm_crtc_state *state)
++					    struct drm_atomic_state *state)
+ {
+ 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+ 	unsigned int var;
+--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
++++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+@@ -517,7 +517,7 @@ void mtk_drm_crtc_async_update(struct dr
+ }
+ 
+ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+ 	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+@@ -542,7 +542,7 @@ static void mtk_drm_crtc_atomic_enable(s
+ }
+ 
+ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+ 	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+--- a/drivers/gpu/drm/meson/meson_crtc.c
++++ b/drivers/gpu/drm/meson/meson_crtc.c
+@@ -82,7 +82,7 @@ static const struct drm_crtc_funcs meson
+ };
+ 
+ static void meson_g12a_crtc_atomic_enable(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_state)
++					  struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	struct drm_crtc_state *crtc_state = crtc->state;
+@@ -118,7 +118,7 @@ static void meson_g12a_crtc_atomic_enabl
+ }
+ 
+ static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	struct drm_crtc_state *crtc_state = crtc->state;
+@@ -146,7 +146,7 @@ static void meson_crtc_atomic_enable(str
+ }
+ 
+ static void meson_g12a_crtc_atomic_disable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	struct meson_drm *priv = meson_crtc->priv;
+@@ -171,7 +171,7 @@ static void meson_g12a_crtc_atomic_disab
+ }
+ 
+ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	struct meson_drm *priv = meson_crtc->priv;
+--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
++++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+@@ -11,6 +11,7 @@
+ #include <linux/ktime.h>
+ #include <linux/bits.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_crtc.h>
+ #include <drm/drm_flip_work.h>
+ #include <drm/drm_mode.h>
+@@ -706,10 +707,12 @@ static struct drm_crtc_state *dpu_crtc_d
+ }
+ 
+ static void dpu_crtc_disable(struct drm_crtc *crtc,
+-			     struct drm_crtc_state *old_crtc_state)
++			     struct drm_atomic_state *state)
+ {
+ 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+ 	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct drm_encoder *encoder;
+ 	unsigned long flags;
+ 	bool release_bandwidth = false;
+@@ -770,7 +773,7 @@ static void dpu_crtc_disable(struct drm_
+ }
+ 
+ static void dpu_crtc_enable(struct drm_crtc *crtc,
+-		struct drm_crtc_state *old_crtc_state)
++		struct drm_atomic_state *state)
+ {
+ 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+ 	struct drm_encoder *encoder;
+--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
+@@ -264,7 +264,7 @@ static void mdp4_crtc_mode_set_nofb(stru
+ }
+ 
+ static void mdp4_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
+ 	struct mdp4_kms *mdp4_kms = get_kms(crtc);
+@@ -284,7 +284,7 @@ static void mdp4_crtc_atomic_disable(str
+ }
+ 
+ static void mdp4_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
+ 	struct mdp4_kms *mdp4_kms = get_kms(crtc);
+--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+@@ -483,7 +483,7 @@ static u32 mdp5_crtc_get_vblank_counter(
+ }
+ 
+ static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ 	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+@@ -529,7 +529,7 @@ static void mdp5_crtc_vblank_on(struct d
+ }
+ 
+ static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ 	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+@@ -303,7 +303,7 @@ static void mxsfb_crtc_atomic_flush(stru
+ }
+ 
+ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
+ 	struct drm_device *drm = mxsfb->drm;
+@@ -327,7 +327,7 @@ static void mxsfb_crtc_atomic_enable(str
+ }
+ 
+ static void mxsfb_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev);
+ 	struct drm_device *drm = mxsfb->drm;
+--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
++++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
+@@ -436,7 +436,7 @@ static void omap_crtc_arm_event(struct d
+ }
+ 
+ static void omap_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct omap_drm_private *priv = crtc->dev->dev_private;
+ 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+@@ -462,7 +462,7 @@ static void omap_crtc_atomic_enable(stru
+ }
+ 
+ static void omap_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct omap_drm_private *priv = crtc->dev->dev_private;
+ 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+--- a/drivers/gpu/drm/qxl/qxl_display.c
++++ b/drivers/gpu/drm/qxl/qxl_display.c
+@@ -445,13 +445,13 @@ static const struct drm_framebuffer_func
+ };
+ 
+ static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
+ 	qxl_crtc_update_monitors_config(crtc, "enable");
+ }
+ 
+ static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	qxl_crtc_update_monitors_config(crtc, "disable");
+ }
+--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+@@ -710,7 +710,7 @@ static int rcar_du_crtc_atomic_check(str
+ }
+ 
+ static void rcar_du_crtc_atomic_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
+ 	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(crtc->state);
+@@ -745,8 +745,10 @@ static void rcar_du_crtc_atomic_enable(s
+ }
+ 
+ static void rcar_du_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
+ 	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(old_state);
+ 	struct rcar_du_device *rcdu = rcrtc->dev;
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+@@ -693,7 +693,7 @@ static void rockchip_drm_set_win_enabled
+ }
+ 
+ static void vop_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct vop *vop = to_vop(crtc);
+ 
+@@ -1261,8 +1261,10 @@ static void vop_crtc_atomic_begin(struct
+ }
+ 
+ static void vop_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct vop *vop = to_vop(crtc);
+ 	const struct vop_data *vop_data = vop->data;
+ 	struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state);
+--- a/drivers/gpu/drm/sti/sti_crtc.c
++++ b/drivers/gpu/drm/sti/sti_crtc.c
+@@ -23,7 +23,7 @@
+ #include "sti_vtg.h"
+ 
+ static void sti_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct sti_mixer *mixer = to_sti_mixer(crtc);
+ 
+@@ -35,7 +35,7 @@ static void sti_crtc_atomic_enable(struc
+ }
+ 
+ static void sti_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct sti_mixer *mixer = to_sti_mixer(crtc);
+ 
+--- a/drivers/gpu/drm/stm/ltdc.c
++++ b/drivers/gpu/drm/stm/ltdc.c
+@@ -420,7 +420,7 @@ static void ltdc_crtc_update_clut(struct
+ }
+ 
+ static void ltdc_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct ltdc_device *ldev = crtc_to_ltdc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+@@ -442,7 +442,7 @@ static void ltdc_crtc_atomic_enable(stru
+ }
+ 
+ static void ltdc_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct ltdc_device *ldev = crtc_to_ltdc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
++++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
+@@ -101,7 +101,7 @@ static void sun4i_crtc_atomic_flush(stru
+ }
+ 
+ static void sun4i_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
+ 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
+@@ -122,7 +122,7 @@ static void sun4i_crtc_atomic_disable(st
+ }
+ 
+ static void sun4i_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct drm_encoder *encoder = sun4i_crtc_get_encoder(crtc);
+ 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
+--- a/drivers/gpu/drm/tegra/dc.c
++++ b/drivers/gpu/drm/tegra/dc.c
+@@ -1748,7 +1748,7 @@ static int tegra_dc_wait_idle(struct teg
+ }
+ 
+ static void tegra_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct tegra_dc *dc = to_tegra_dc(crtc);
+ 	u32 value;
+@@ -1805,10 +1805,10 @@ static void tegra_crtc_atomic_disable(st
+ }
+ 
+ static void tegra_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct drm_display_mode *mode = &crtc->state->adjusted_mode;
+-	struct tegra_dc_state *state = to_dc_state(crtc->state);
++	struct tegra_dc_state *crtc_state = to_dc_state(crtc->state);
+ 	struct tegra_dc *dc = to_tegra_dc(crtc);
+ 	u32 value;
+ 	int err;
+@@ -1888,7 +1888,7 @@ static void tegra_crtc_atomic_enable(str
+ 		tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR);
+ 
+ 	/* apply PLL and pixel clock changes */
+-	tegra_dc_commit_state(dc, state);
++	tegra_dc_commit_state(dc, crtc_state);
+ 
+ 	/* program display mode */
+ 	tegra_dc_set_timings(dc, mode);
+--- a/drivers/gpu/drm/tidss/tidss_crtc.c
++++ b/drivers/gpu/drm/tidss/tidss_crtc.c
+@@ -212,8 +212,10 @@ static void tidss_crtc_atomic_flush(stru
+ }
+ 
+ static void tidss_crtc_atomic_enable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+ 	struct tidss_device *tidss = to_tidss(ddev);
+@@ -255,7 +257,7 @@ static void tidss_crtc_atomic_enable(str
+ }
+ 
+ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
++++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+@@ -484,7 +484,7 @@ static void tilcdc_crtc_enable(struct dr
+ }
+ 
+ static void tilcdc_crtc_atomic_enable(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_state)
++				      struct drm_atomic_state *state)
+ {
+ 	tilcdc_crtc_enable(crtc);
+ }
+@@ -541,7 +541,7 @@ static void tilcdc_crtc_disable(struct d
+ }
+ 
+ static void tilcdc_crtc_atomic_disable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ 	tilcdc_crtc_disable(crtc);
+ }
+--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
++++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
+@@ -213,12 +213,12 @@ static void vbox_crtc_set_base_and_mode(
+ }
+ 
+ static void vbox_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
+ }
+ 
+ static void vbox_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_crtc_state)
++				     struct drm_atomic_state *state)
+ {
+ }
+ 
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -489,8 +489,10 @@ int vc4_crtc_disable_at_boot(struct drm_
+ }
+ 
+ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state);
+ 	struct drm_device *dev = crtc->dev;
+ 
+@@ -516,8 +518,10 @@ static void vc4_crtc_atomic_disable(stru
+ }
+ 
+ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -13,6 +13,7 @@
+ #include <linux/of_platform.h>
+ #include <linux/pm_runtime.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_edid.h>
+ #include <drm/drm_fb_cma_helper.h>
+@@ -401,15 +402,19 @@ static int vc4_txp_atomic_check(struct d
+ }
+ 
+ static void vc4_txp_atomic_enable(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	drm_crtc_vblank_on(crtc);
+ 	vc4_hvs_atomic_enable(crtc, old_state);
+ }
+ 
+ static void vc4_txp_atomic_disable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 
+ 	/* Disable vblank irq handling before crtc is disabled. */
+--- a/drivers/gpu/drm/virtio/virtgpu_display.c
++++ b/drivers/gpu/drm/virtio/virtgpu_display.c
+@@ -95,12 +95,12 @@ static void virtio_gpu_crtc_mode_set_nof
+ }
+ 
+ static void virtio_gpu_crtc_atomic_enable(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_state)
++					  struct drm_atomic_state *state)
+ {
+ }
+ 
+ static void virtio_gpu_crtc_atomic_disable(struct drm_crtc *crtc,
+-					   struct drm_crtc_state *old_state)
++					   struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct virtio_gpu_device *vgdev = dev->dev_private;
+--- a/drivers/gpu/drm/vkms/vkms_crtc.c
++++ b/drivers/gpu/drm/vkms/vkms_crtc.c
+@@ -215,13 +215,13 @@ static int vkms_crtc_atomic_check(struct
+ }
+ 
+ static void vkms_crtc_atomic_enable(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	drm_crtc_vblank_on(crtc);
+ }
+ 
+ static void vkms_crtc_atomic_disable(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	drm_crtc_vblank_off(crtc);
+ }
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+@@ -214,7 +214,7 @@ static void vmw_ldu_crtc_mode_set_nofb(s
+  * CRTC, it makes more sense to do those at plane update time.
+  */
+ static void vmw_ldu_crtc_atomic_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ }
+ 
+@@ -224,7 +224,7 @@ static void vmw_ldu_crtc_atomic_enable(s
+  * @crtc: CRTC to be turned off
+  */
+ static void vmw_ldu_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ }
+ 
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
+@@ -279,7 +279,7 @@ static void vmw_sou_crtc_helper_prepare(
+  * This is called after a mode set has been completed.
+  */
+ static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *old_state)
++				       struct drm_atomic_state *state)
+ {
+ }
+ 
+@@ -289,7 +289,7 @@ static void vmw_sou_crtc_atomic_enable(s
+  * @crtc: CRTC to be turned off
+  */
+ static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ 	struct vmw_private *dev_priv;
+ 	struct vmw_screen_object_unit *sou;
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+@@ -408,12 +408,12 @@ static void vmw_stdu_crtc_helper_prepare
+ }
+ 
+ static void vmw_stdu_crtc_atomic_enable(struct drm_crtc *crtc,
+-					struct drm_crtc_state *old_state)
++					struct drm_atomic_state *state)
+ {
+ }
+ 
+ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *old_state)
++					 struct drm_atomic_state *state)
+ {
+ 	struct vmw_private *dev_priv;
+ 	struct vmw_screen_target_display_unit *stdu;
+--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
++++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
+@@ -1441,7 +1441,7 @@ static int zynqmp_disp_crtc_setup_clock(
+ 
+ static void
+ zynqmp_disp_crtc_atomic_enable(struct drm_crtc *crtc,
+-			       struct drm_crtc_state *old_crtc_state)
++			       struct drm_atomic_state *state)
+ {
+ 	struct zynqmp_disp *disp = crtc_to_disp(crtc);
+ 	struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
+@@ -1472,8 +1472,10 @@ zynqmp_disp_crtc_atomic_enable(struct dr
+ 
+ static void
+ zynqmp_disp_crtc_atomic_disable(struct drm_crtc *crtc,
+-				struct drm_crtc_state *old_crtc_state)
++				struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct zynqmp_disp *disp = crtc_to_disp(crtc);
+ 	struct drm_plane_state *old_plane_state;
+ 
+--- a/drivers/gpu/drm/zte/zx_vou.c
++++ b/drivers/gpu/drm/zte/zx_vou.c
+@@ -350,7 +350,7 @@ static inline void vou_chn_set_update(st
+ }
+ 
+ static void zx_crtc_atomic_enable(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ {
+ 	struct drm_display_mode *mode = &crtc->state->adjusted_mode;
+ 	bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
+@@ -455,7 +455,7 @@ static void zx_crtc_atomic_enable(struct
+ }
+ 
+ static void zx_crtc_atomic_disable(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct zx_crtc *zcrtc = to_zx_crtc(crtc);
+ 	const struct zx_crtc_bits *bits = zcrtc->bits;
+--- a/include/drm/drm_modeset_helper_vtables.h
++++ b/include/drm/drm_modeset_helper_vtables.h
+@@ -417,14 +417,10 @@ struct drm_crtc_helper_funcs {
+ 	 * @atomic_enable must be the inverse of @atomic_disable for atomic
+ 	 * drivers.
+ 	 *
+-	 * Drivers can use the @old_crtc_state input parameter if the operations
+-	 * needed to enable the CRTC don't depend solely on the new state but
+-	 * also on the transition between the old state and the new state.
+-	 *
+ 	 * This function is optional.
+ 	 */
+ 	void (*atomic_enable)(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state);
++			      struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @atomic_disable:
+@@ -441,15 +437,10 @@ struct drm_crtc_helper_funcs {
+ 	 * need to implement it if there's no need to disable anything at the
+ 	 * CRTC level.
+ 	 *
+-	 * Comparing to @disable, this one provides the additional input
+-	 * parameter @old_crtc_state which could be used to access the old
+-	 * state. Atomic drivers should consider to use this one instead
+-	 * of @disable.
+-	 *
+ 	 * This function is optional.
+ 	 */
+ 	void (*atomic_disable)(struct drm_crtc *crtc,
+-			       struct drm_crtc_state *old_crtc_state);
++			       struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @get_scanout_position:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0409-drm-atomic-Pass-the-full-state-to-CRTC-atomic_check.patch b/target/linux/bcm27xx/patches-5.10/950-0409-drm-atomic-Pass-the-full-state-to-CRTC-atomic_check.patch
new file mode 100644
index 0000000000..5111cc280b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0409-drm-atomic-Pass-the-full-state-to-CRTC-atomic_check.patch
@@ -0,0 +1,1027 @@
+From 27a4cd3c9986626cc731282e2e4887121f72f5f7 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 28 Oct 2020 13:32:21 +0100
+Subject: [PATCH] drm/atomic: Pass the full state to CRTC atomic_check
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Commit 29b77ad7b9ca8c87152a1a9e8188970fb2a93df4 upstream.
+
+The current atomic helpers have either their object state being passed as
+an argument or the full atomic state.
+
+The former is the pattern that was done at first, before switching to the
+latter for new hooks or when it was needed.
+
+Let's start convert all the remaining helpers to provide a consistent
+interface, starting with the CRTC's atomic_check.
+
+The conversion was done using the coccinelle script below,
+built tested on all the drivers and actually tested on vc4.
+
+virtual report
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+struct drm_crtc *crtc;
+struct drm_crtc_state *crtc_state;
+identifier dev, state;
+identifier ret, f;
+@@
+
+ f(struct drm_device *dev, struct drm_atomic_state *state)
+ {
+	<...
+-	ret = FUNCS->atomic_check(crtc, crtc_state);
++	ret = FUNCS->atomic_check(crtc, state);
+	...>
+ }
+
+@@
+identifier crtc, new_state;
+@@
+
+ struct drm_crtc_helper_funcs {
+ 	...
+-	int (*atomic_check)(struct drm_crtc *crtc, struct drm_crtc_state *new_state);
++	int (*atomic_check)(struct drm_crtc *crtc, struct drm_atomic_state *state);
+ 	...
+}
+
+@ crtc_atomic_func @
+identifier helpers;
+identifier func;
+@@
+
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_check = func,
+	...,
+};
+
+@ ignores_new_state @
+identifier crtc_atomic_func.func;
+identifier crtc, new_state;
+@@
+
+ int func(struct drm_crtc *crtc,
+		struct drm_crtc_state *new_state)
+ {
+	... when != new_state
+ }
+
+@ adds_new_state depends on crtc_atomic_func && !ignores_new_state @
+identifier crtc_atomic_func.func;
+identifier crtc, new_state;
+@@
+
+ int func(struct drm_crtc *crtc, struct drm_crtc_state *new_state)
+ {
++	struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state, crtc);
+ 	...
+ }
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+expression E;
+type T;
+@@
+
+ int func(...)
+ {
+	...
+-	T state = E;
++	T crtc_state = E;
+ 	<+...
+-	state
++	crtc_state
+ 	...+>
+ }
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+type T;
+@@
+
+ int func(...)
+ {
+ 	...
+-	T state;
++	T crtc_state;
+ 	<+...
+-	state
++	crtc_state
+ 	...+>
+ }
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+identifier new_state;
+identifier crtc;
+@@
+
+ int func(struct drm_crtc *crtc,
+-	       struct drm_crtc_state *new_state
++	       struct drm_atomic_state *state
+	       )
+ { ... }
+
+@@
+identifier new_state;
+identifier crtc;
+@@
+
+ int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
+-                             struct drm_crtc_state *new_state
++                             struct drm_atomic_state *state
+               )
+ {
++       struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state, crtc);
+	...
+ }
+
+@@
+identifier new_state;
+identifier crtc;
+@@
+
+ int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
+-                             struct drm_crtc_state *new_state
++                             struct drm_atomic_state *state
+               );
+
+@ include depends on adds_new_state @
+@@
+
+ #include <drm/drm_atomic.h>
+
+@ no_include depends on !include && adds_new_state @
+@@
+
++ #include <drm/drm_atomic.h>
+  #include <drm/...>
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201028123222.1732139-1-maxime@cerno.tech
+---
+ .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 ++++++-----
+ .../gpu/drm/arm/display/komeda/komeda_crtc.c  | 10 ++++----
+ drivers/gpu/drm/arm/malidp_crtc.c             | 20 ++++++++--------
+ drivers/gpu/drm/armada/armada_crtc.c          | 10 ++++----
+ drivers/gpu/drm/ast/ast_mode.c                | 12 ++++++----
+ .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c    |  3 ++-
+ drivers/gpu/drm/drm_atomic_helper.c           |  2 +-
+ drivers/gpu/drm/drm_simple_kms_helper.c       | 10 ++++----
+ drivers/gpu/drm/exynos/exynos_drm_crtc.c      |  8 ++++---
+ drivers/gpu/drm/imx/ipuv3-crtc.c              |  6 +++--
+ drivers/gpu/drm/ingenic/ingenic-drm-drv.c     | 15 ++++++++----
+ drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c      | 23 +++++++++++--------
+ drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c     |  2 +-
+ drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c     | 13 +++++++----
+ drivers/gpu/drm/mxsfb/mxsfb_kms.c             | 10 ++++----
+ drivers/gpu/drm/nouveau/dispnv50/head.c       |  7 ++++--
+ drivers/gpu/drm/omapdrm/omap_crtc.c           | 13 +++++++----
+ drivers/gpu/drm/rcar-du/rcar_du_crtc.c        | 11 +++++----
+ drivers/gpu/drm/rockchip/rockchip_drm_vop.c   |  4 +++-
+ drivers/gpu/drm/sun4i/sun4i_crtc.c            |  7 ++++--
+ drivers/gpu/drm/tidss/tidss_crtc.c            | 10 ++++----
+ drivers/gpu/drm/tilcdc/tilcdc_crtc.c          | 12 ++++++----
+ drivers/gpu/drm/vc4/vc4_crtc.c                | 11 +++++----
+ drivers/gpu/drm/vc4/vc4_txp.c                 | 10 ++++----
+ drivers/gpu/drm/virtio/virtgpu_display.c      |  2 +-
+ drivers/gpu/drm/vkms/vkms_crtc.c              | 16 +++++++------
+ drivers/gpu/drm/vmwgfx/vmwgfx_kms.c           |  4 +++-
+ drivers/gpu/drm/vmwgfx/vmwgfx_kms.h           |  2 +-
+ drivers/gpu/drm/xlnx/zynqmp_disp.c            |  6 +++--
+ include/drm/drm_modeset_helper_vtables.h      |  5 ++--
+ 30 files changed, 168 insertions(+), 110 deletions(-)
+
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -5601,17 +5601,19 @@ static void dm_update_crtc_active_planes
+ }
+ 
+ static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
+-				       struct drm_crtc_state *state)
++				       struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+ 	struct dc *dc = adev->dm.dc;
+-	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
++	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
+ 	int ret = -EINVAL;
+ 
+-	dm_update_crtc_active_planes(crtc, state);
++	dm_update_crtc_active_planes(crtc, crtc_state);
+ 
+ 	if (unlikely(!dm_crtc_state->stream &&
+-		     modeset_required(state, NULL, dm_crtc_state->stream))) {
++		     modeset_required(crtc_state, NULL, dm_crtc_state->stream))) {
+ 		WARN_ON(1);
+ 		return ret;
+ 	}
+@@ -5622,8 +5624,8 @@ static int dm_crtc_helper_atomic_check(s
+ 	 * planes are disabled, which is not supported by the hardware. And there is legacy
+ 	 * userspace which stops using the HW cursor altogether in response to the resulting EINVAL.
+ 	 */
+-	if (state->enable &&
+-	    !(state->plane_mask & drm_plane_mask(crtc->primary)))
++	if (crtc_state->enable &&
++	    !(crtc_state->plane_mask & drm_plane_mask(crtc->primary)))
+ 		return -EINVAL;
+ 
+ 	/* In some use cases, like reset, no stream is attached */
+--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
++++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+@@ -74,16 +74,18 @@ static void komeda_crtc_update_clock_rat
+  */
+ static int
+ komeda_crtc_atomic_check(struct drm_crtc *crtc,
+-			 struct drm_crtc_state *state)
++			 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct komeda_crtc *kcrtc = to_kcrtc(crtc);
+-	struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(state);
++	struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_state);
+ 	int err;
+ 
+-	if (drm_atomic_crtc_needs_modeset(state))
++	if (drm_atomic_crtc_needs_modeset(crtc_state))
+ 		komeda_crtc_update_clock_ratio(kcrtc_st);
+ 
+-	if (state->active) {
++	if (crtc_state->active) {
+ 		err = komeda_build_display_data_flow(kcrtc, kcrtc_st);
+ 		if (err)
+ 			return err;
+--- a/drivers/gpu/drm/arm/malidp_crtc.c
++++ b/drivers/gpu/drm/arm/malidp_crtc.c
+@@ -337,8 +337,10 @@ mclk_calc:
+ }
+ 
+ static int malidp_crtc_atomic_check(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
+ 	struct malidp_hw_device *hwdev = malidp->dev;
+ 	struct drm_plane *plane;
+@@ -373,7 +375,7 @@ static int malidp_crtc_atomic_check(stru
+ 	 */
+ 
+ 	/* first count the number of rotated planes */
+-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
++	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
+ 		struct drm_framebuffer *fb = pstate->fb;
+ 
+ 		if ((pstate->rotation & MALIDP_ROTATED_MASK) || fb->modifier)
+@@ -389,7 +391,7 @@ static int malidp_crtc_atomic_check(stru
+ 		rot_mem_free += hwdev->rotation_memory[1];
+ 
+ 	/* now validate the rotation memory requirements */
+-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
++	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
+ 		struct malidp_plane *mp = to_malidp_plane(plane);
+ 		struct malidp_plane_state *ms = to_malidp_plane_state(pstate);
+ 		struct drm_framebuffer *fb = pstate->fb;
+@@ -417,18 +419,18 @@ static int malidp_crtc_atomic_check(stru
+ 	}
+ 
+ 	/* If only the writeback routing has changed, we don't need a modeset */
+-	if (state->connectors_changed) {
++	if (crtc_state->connectors_changed) {
+ 		u32 old_mask = crtc->state->connector_mask;
+-		u32 new_mask = state->connector_mask;
++		u32 new_mask = crtc_state->connector_mask;
+ 
+ 		if ((old_mask ^ new_mask) ==
+ 		    (1 << drm_connector_index(&malidp->mw_connector.base)))
+-			state->connectors_changed = false;
++			crtc_state->connectors_changed = false;
+ 	}
+ 
+-	ret = malidp_crtc_atomic_check_gamma(crtc, state);
+-	ret = ret ? ret : malidp_crtc_atomic_check_ctm(crtc, state);
+-	ret = ret ? ret : malidp_crtc_atomic_check_scaling(crtc, state);
++	ret = malidp_crtc_atomic_check_gamma(crtc, crtc_state);
++	ret = ret ? ret : malidp_crtc_atomic_check_ctm(crtc, crtc_state);
++	ret = ret ? ret : malidp_crtc_atomic_check_scaling(crtc, crtc_state);
+ 
+ 	return ret;
+ }
+--- a/drivers/gpu/drm/armada/armada_crtc.c
++++ b/drivers/gpu/drm/armada/armada_crtc.c
+@@ -413,15 +413,17 @@ static void armada_drm_crtc_mode_set_nof
+ }
+ 
+ static int armada_drm_crtc_atomic_check(struct drm_crtc *crtc,
+-					struct drm_crtc_state *state)
++					struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
+ 
+-	if (state->gamma_lut && drm_color_lut_size(state->gamma_lut) != 256)
++	if (crtc_state->gamma_lut && drm_color_lut_size(crtc_state->gamma_lut) != 256)
+ 		return -EINVAL;
+ 
+-	if (state->color_mgmt_changed)
+-		state->planes_changed = true;
++	if (crtc_state->color_mgmt_changed)
++		crtc_state->planes_changed = true;
+ 
+ 	return 0;
+ }
+--- a/drivers/gpu/drm/ast/ast_mode.c
++++ b/drivers/gpu/drm/ast/ast_mode.c
+@@ -751,24 +751,26 @@ static void ast_crtc_dpms(struct drm_crt
+ }
+ 
+ static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
+-					struct drm_crtc_state *state)
++					struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct ast_crtc_state *ast_state;
+ 	const struct drm_format_info *format;
+ 	bool succ;
+ 
+-	if (!state->enable)
++	if (!crtc_state->enable)
+ 		return 0; /* no mode checks if CRTC is being disabled */
+ 
+-	ast_state = to_ast_crtc_state(state);
++	ast_state = to_ast_crtc_state(crtc_state);
+ 
+ 	format = ast_state->format;
+ 	if (drm_WARN_ON_ONCE(dev, !format))
+ 		return -EINVAL; /* BUG: We didn't set format in primary check(). */
+ 
+-	succ = ast_get_vbios_mode_info(format, &state->mode,
+-				       &state->adjusted_mode,
++	succ = ast_get_vbios_mode_info(format, &crtc_state->mode,
++				       &crtc_state->adjusted_mode,
+ 				       &ast_state->vbios_mode_info);
+ 	if (!succ)
+ 		return -EINVAL;
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+@@ -325,8 +325,9 @@ static int atmel_hlcdc_crtc_select_outpu
+ }
+ 
+ static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
+-					 struct drm_crtc_state *s)
++					 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *s = drm_atomic_get_new_crtc_state(state, c);
+ 	int ret;
+ 
+ 	ret = atmel_hlcdc_crtc_select_output_mode(s);
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -918,7 +918,7 @@ drm_atomic_helper_check_planes(struct dr
+ 		if (!funcs || !funcs->atomic_check)
+ 			continue;
+ 
+-		ret = funcs->atomic_check(crtc, new_crtc_state);
++		ret = funcs->atomic_check(crtc, state);
+ 		if (ret) {
+ 			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic driver check failed\n",
+ 					 crtc->base.id, crtc->name);
+--- a/drivers/gpu/drm/drm_simple_kms_helper.c
++++ b/drivers/gpu/drm/drm_simple_kms_helper.c
+@@ -86,16 +86,18 @@ drm_simple_kms_crtc_mode_valid(struct dr
+ }
+ 
+ static int drm_simple_kms_crtc_check(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *state)
++				     struct drm_atomic_state *state)
+ {
+-	bool has_primary = state->plane_mask &
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	bool has_primary = crtc_state->plane_mask &
+ 			   drm_plane_mask(crtc->primary);
+ 
+ 	/* We always want to have an active plane with an active CRTC */
+-	if (has_primary != state->enable)
++	if (has_primary != crtc_state->enable)
+ 		return -EINVAL;
+ 
+-	return drm_atomic_add_affected_planes(state->state, crtc);
++	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
+ }
+ 
+ static void drm_simple_kms_crtc_enable(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
++++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+@@ -49,15 +49,17 @@ static void exynos_drm_crtc_atomic_disab
+ }
+ 
+ static int exynos_crtc_atomic_check(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *state)
++				     struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ 
+-	if (!state->enable)
++	if (!crtc_state->enable)
+ 		return 0;
+ 
+ 	if (exynos_crtc->ops->atomic_check)
+-		return exynos_crtc->ops->atomic_check(exynos_crtc, state);
++		return exynos_crtc->ops->atomic_check(exynos_crtc, crtc_state);
+ 
+ 	return 0;
+ }
+--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
++++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
+@@ -227,11 +227,13 @@ static bool ipu_crtc_mode_fixup(struct d
+ }
+ 
+ static int ipu_crtc_atomic_check(struct drm_crtc *crtc,
+-				 struct drm_crtc_state *state)
++				 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	u32 primary_plane_mask = drm_plane_mask(crtc->primary);
+ 
+-	if (state->active && (primary_plane_mask & state->plane_mask) == 0)
++	if (crtc_state->active && (primary_plane_mask & crtc_state->plane_mask) == 0)
+ 		return -EINVAL;
+ 
+ 	return 0;
+--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
++++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+@@ -195,22 +195,27 @@ static void ingenic_drm_crtc_update_timi
+ }
+ 
+ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *state)
++					 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+ 	struct drm_plane_state *f1_state, *f0_state, *ipu_state = NULL;
+ 
+-	if (drm_atomic_crtc_needs_modeset(state) && priv->soc_info->has_osd) {
+-		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
++	if (drm_atomic_crtc_needs_modeset(crtc_state) && priv->soc_info->has_osd) {
++		f1_state = drm_atomic_get_plane_state(crtc_state->state,
++						      &priv->f1);
+ 		if (IS_ERR(f1_state))
+ 			return PTR_ERR(f1_state);
+ 
+-		f0_state = drm_atomic_get_plane_state(state->state, &priv->f0);
++		f0_state = drm_atomic_get_plane_state(crtc_state->state,
++						      &priv->f0);
+ 		if (IS_ERR(f0_state))
+ 			return PTR_ERR(f0_state);
+ 
+ 		if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && priv->ipu_plane) {
+-			ipu_state = drm_atomic_get_plane_state(state->state, priv->ipu_plane);
++			ipu_state = drm_atomic_get_plane_state(crtc_state->state,
++							       priv->ipu_plane);
+ 			if (IS_ERR(ipu_state))
+ 				return PTR_ERR(ipu_state);
+ 
+--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
++++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+@@ -815,10 +815,12 @@ struct plane_state {
+ };
+ 
+ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
+-		struct drm_crtc_state *state)
++		struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+-	struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
++	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc_state);
+ 	struct plane_state *pstates;
+ 
+ 	const struct drm_plane_state *pstate;
+@@ -835,32 +837,33 @@ static int dpu_crtc_atomic_check(struct
+ 
+ 	pstates = kzalloc(sizeof(*pstates) * DPU_STAGE_MAX * 4, GFP_KERNEL);
+ 
+-	if (!state->enable || !state->active) {
++	if (!crtc_state->enable || !crtc_state->active) {
+ 		DPU_DEBUG("crtc%d -> enable %d, active %d, skip atomic_check\n",
+-				crtc->base.id, state->enable, state->active);
++				crtc->base.id, crtc_state->enable,
++				crtc_state->active);
+ 		goto end;
+ 	}
+ 
+-	mode = &state->adjusted_mode;
++	mode = &crtc_state->adjusted_mode;
+ 	DPU_DEBUG("%s: check", dpu_crtc->name);
+ 
+ 	/* force a full mode set if active state changed */
+-	if (state->active_changed)
+-		state->mode_changed = true;
++	if (crtc_state->active_changed)
++		crtc_state->mode_changed = true;
+ 
+ 	memset(pipe_staged, 0, sizeof(pipe_staged));
+ 
+ 	if (cstate->num_mixers) {
+ 		mixer_width = mode->hdisplay / cstate->num_mixers;
+ 
+-		_dpu_crtc_setup_lm_bounds(crtc, state);
++		_dpu_crtc_setup_lm_bounds(crtc, crtc_state);
+ 	}
+ 
+ 	crtc_rect.x2 = mode->hdisplay;
+ 	crtc_rect.y2 = mode->vdisplay;
+ 
+ 	 /* get plane state for all drm planes associated with crtc state */
+-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
++	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
+ 		struct drm_rect dst, clip = crtc_rect;
+ 
+ 		if (IS_ERR_OR_NULL(pstate)) {
+@@ -966,7 +969,7 @@ static int dpu_crtc_atomic_check(struct
+ 
+ 	atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);
+ 
+-	rc = dpu_core_perf_crtc_check(crtc, state);
++	rc = dpu_core_perf_crtc_check(crtc, crtc_state);
+ 	if (rc) {
+ 		DPU_ERROR("crtc%d failed performance check %d\n",
+ 				crtc->base.id, rc);
+--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
+@@ -307,7 +307,7 @@ static void mdp4_crtc_atomic_enable(stru
+ }
+ 
+ static int mdp4_crtc_atomic_check(struct drm_crtc *crtc,
+-		struct drm_crtc_state *state)
++		struct drm_atomic_state *state)
+ {
+ 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
+ 	DBG("%s: check", mdp4_crtc->name);
+--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+@@ -7,6 +7,7 @@
+ 
+ #include <linux/sort.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_mode.h>
+ #include <drm/drm_crtc.h>
+ #include <drm/drm_flip_work.h>
+@@ -682,15 +683,17 @@ static enum mdp_mixer_stage_id get_start
+ }
+ 
+ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
+-		struct drm_crtc_state *state)
++		struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
+ 	struct drm_plane *plane;
+ 	struct drm_device *dev = crtc->dev;
+ 	struct plane_state pstates[STAGE_MAX + 1];
+ 	const struct mdp5_cfg_hw *hw_cfg;
+ 	const struct drm_plane_state *pstate;
+-	const struct drm_display_mode *mode = &state->adjusted_mode;
++	const struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ 	bool cursor_plane = false;
+ 	bool need_right_mixer = false;
+ 	int cnt = 0, i;
+@@ -699,7 +702,7 @@ static int mdp5_crtc_atomic_check(struct
+ 
+ 	DBG("%s: check", crtc->name);
+ 
+-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
++	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
+ 		if (!pstate->visible)
+ 			continue;
+ 
+@@ -731,7 +734,7 @@ static int mdp5_crtc_atomic_check(struct
+ 	if (mode->hdisplay > hw_cfg->lm.max_width)
+ 		need_right_mixer = true;
+ 
+-	ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer);
++	ret = mdp5_crtc_setup_pipeline(crtc, crtc_state, need_right_mixer);
+ 	if (ret) {
+ 		DRM_DEV_ERROR(dev->dev, "couldn't assign mixers %d\n", ret);
+ 		return ret;
+@@ -744,7 +747,7 @@ static int mdp5_crtc_atomic_check(struct
+ 	WARN_ON(cursor_plane &&
+ 		(pstates[cnt - 1].plane->type != DRM_PLANE_TYPE_CURSOR));
+ 
+-	start = get_start_stage(crtc, state, &pstates[0].state->base);
++	start = get_start_stage(crtc, crtc_state, &pstates[0].state->base);
+ 
+ 	/* verify that there are not too many planes attached to crtc
+ 	 * and that we don't have conflicting mixer stages:
+--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+@@ -270,17 +270,19 @@ static void mxsfb_crtc_mode_set_nofb(str
+ }
+ 
+ static int mxsfb_crtc_atomic_check(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *state)
++				   struct drm_atomic_state *state)
+ {
+-	bool has_primary = state->plane_mask &
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	bool has_primary = crtc_state->plane_mask &
+ 			   drm_plane_mask(crtc->primary);
+ 
+ 	/* The primary plane has to be enabled when the CRTC is active. */
+-	if (state->active && !has_primary)
++	if (crtc_state->active && !has_primary)
+ 		return -EINVAL;
+ 
+ 	/* TODO: Is this needed ? */
+-	return drm_atomic_add_affected_planes(state->state, crtc);
++	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
+ }
+ 
+ static void mxsfb_crtc_atomic_flush(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
++++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
+@@ -30,6 +30,7 @@
+ #include <nvif/event.h>
+ #include <nvif/cl0046.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_crtc_helper.h>
+ #include <drm/drm_vblank.h>
+@@ -310,12 +311,14 @@ nv50_head_atomic_check_mode(struct nv50_
+ }
+ 
+ static int
+-nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
++nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct nouveau_drm *drm = nouveau_drm(crtc->dev);
+ 	struct nv50_head *head = nv50_head(crtc);
+ 	struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
+-	struct nv50_head_atom *asyh = nv50_head_atom(state);
++	struct nv50_head_atom *asyh = nv50_head_atom(crtc_state);
+ 	struct nouveau_conn_atom *asyc = NULL;
+ 	struct drm_connector_state *conns;
+ 	struct drm_connector *conn;
+--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
++++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
+@@ -569,22 +569,25 @@ static bool omap_crtc_is_manually_update
+ }
+ 
+ static int omap_crtc_atomic_check(struct drm_crtc *crtc,
+-				struct drm_crtc_state *state)
++				struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct drm_plane_state *pri_state;
+ 
+-	if (state->color_mgmt_changed && state->gamma_lut) {
+-		unsigned int length = state->gamma_lut->length /
++	if (crtc_state->color_mgmt_changed && crtc_state->gamma_lut) {
++		unsigned int length = crtc_state->gamma_lut->length /
+ 			sizeof(struct drm_color_lut);
+ 
+ 		if (length < 2)
+ 			return -EINVAL;
+ 	}
+ 
+-	pri_state = drm_atomic_get_new_plane_state(state->state, crtc->primary);
++	pri_state = drm_atomic_get_new_plane_state(crtc_state->state,
++						   crtc->primary);
+ 	if (pri_state) {
+ 		struct omap_crtc_state *omap_crtc_state =
+-			to_omap_crtc_state(state);
++			to_omap_crtc_state(crtc_state);
+ 
+ 		/* Mirror new values for zpos and rotation in omap_crtc_state */
+ 		omap_crtc_state->zpos = pri_state->zpos;
+--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+@@ -682,20 +682,23 @@ static void rcar_du_crtc_stop(struct rca
+  */
+ 
+ static int rcar_du_crtc_atomic_check(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *state)
++				     struct drm_atomic_state *state)
+ {
+-	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(crtc_state);
+ 	struct drm_encoder *encoder;
+ 	int ret;
+ 
+-	ret = rcar_du_cmm_check(crtc, state);
++	ret = rcar_du_cmm_check(crtc, crtc_state);
+ 	if (ret)
+ 		return ret;
+ 
+ 	/* Store the routes from the CRTC output to the DU outputs. */
+ 	rstate->outputs = 0;
+ 
+-	drm_for_each_encoder_mask(encoder, crtc->dev, state->encoder_mask) {
++	drm_for_each_encoder_mask(encoder, crtc->dev,
++				  crtc_state->encoder_mask) {
+ 		struct rcar_du_encoder *renc;
+ 
+ 		/* Skip the writeback encoder. */
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+@@ -1416,8 +1416,10 @@ static void vop_wait_for_irq_handler(str
+ }
+ 
+ static int vop_crtc_atomic_check(struct drm_crtc *crtc,
+-				 struct drm_crtc_state *crtc_state)
++				 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct vop *vop = to_vop(crtc);
+ 	struct drm_plane *plane;
+ 	struct drm_plane_state *plane_state;
+--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
++++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
+@@ -15,6 +15,7 @@
+ 
+ #include <video/videomode.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_crtc.h>
+ #include <drm/drm_modes.h>
+@@ -45,14 +46,16 @@ static struct drm_encoder *sun4i_crtc_ge
+ }
+ 
+ static int sun4i_crtc_atomic_check(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
+ 	struct sunxi_engine *engine = scrtc->engine;
+ 	int ret = 0;
+ 
+ 	if (engine && engine->ops && engine->ops->atomic_check)
+-		ret = engine->ops->atomic_check(engine, state);
++		ret = engine->ops->atomic_check(engine, crtc_state);
+ 
+ 	return ret;
+ }
+--- a/drivers/gpu/drm/tidss/tidss_crtc.c
++++ b/drivers/gpu/drm/tidss/tidss_crtc.c
+@@ -85,8 +85,10 @@ void tidss_crtc_error_irq(struct drm_crt
+ /* drm_crtc_helper_funcs */
+ 
+ static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *state)
++				   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	struct drm_device *ddev = crtc->dev;
+ 	struct tidss_device *tidss = to_tidss(ddev);
+ 	struct dispc_device *dispc = tidss->dispc;
+@@ -97,10 +99,10 @@ static int tidss_crtc_atomic_check(struc
+ 
+ 	dev_dbg(ddev->dev, "%s\n", __func__);
+ 
+-	if (!state->enable)
++	if (!crtc_state->enable)
+ 		return 0;
+ 
+-	mode = &state->adjusted_mode;
++	mode = &crtc_state->adjusted_mode;
+ 
+ 	ok = dispc_vp_mode_valid(dispc, hw_videoport, mode);
+ 	if (ok != MODE_OK) {
+@@ -109,7 +111,7 @@ static int tidss_crtc_atomic_check(struc
+ 		return -EINVAL;
+ 	}
+ 
+-	return dispc_vp_bus_check(dispc, hw_videoport, state);
++	return dispc_vp_bus_check(dispc, hw_videoport, crtc_state);
+ }
+ 
+ /*
+--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
++++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+@@ -669,15 +669,17 @@ static bool tilcdc_crtc_mode_fixup(struc
+ }
+ 
+ static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
+ 	/* If we are not active we don't care */
+-	if (!state->active)
++	if (!crtc_state->active)
+ 		return 0;
+ 
+-	if (state->state->planes[0].ptr != crtc->primary ||
+-	    state->state->planes[0].state == NULL ||
+-	    state->state->planes[0].state->crtc != crtc) {
++	if (crtc_state->state->planes[0].ptr != crtc->primary ||
++	    crtc_state->state->planes[0].state == NULL ||
++	    crtc_state->state->planes[0].state->crtc != crtc) {
+ 		dev_dbg(crtc->dev->dev, "CRTC primary plane must be present");
+ 		return -EINVAL;
+ 	}
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -601,18 +601,21 @@ void vc4_crtc_get_margins(struct drm_crt
+ }
+ 
+ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
+-				 struct drm_crtc_state *state)
++				 struct drm_atomic_state *state)
+ {
+-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	struct drm_connector *conn;
+ 	struct drm_connector_state *conn_state;
+ 	int ret, i;
+ 
+-	ret = vc4_hvs_atomic_check(crtc, state);
++	ret = vc4_hvs_atomic_check(crtc, crtc_state);
+ 	if (ret)
+ 		return ret;
+ 
+-	for_each_new_connector_in_state(state->state, conn, conn_state, i) {
++	for_each_new_connector_in_state(crtc_state->state, conn, conn_state,
++					i) {
+ 		if (conn_state->crtc != crtc)
+ 			continue;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -386,16 +386,18 @@ static const struct drm_crtc_funcs vc4_t
+ };
+ 
+ static int vc4_txp_atomic_check(struct drm_crtc *crtc,
+-				struct drm_crtc_state *state)
++				struct drm_atomic_state *state)
+ {
+-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	int ret;
+ 
+-	ret = vc4_hvs_atomic_check(crtc, state);
++	ret = vc4_hvs_atomic_check(crtc, crtc_state);
+ 	if (ret)
+ 		return ret;
+ 
+-	state->no_vblank = true;
++	crtc_state->no_vblank = true;
+ 	vc4_state->feed_txp = true;
+ 
+ 	return 0;
+--- a/drivers/gpu/drm/virtio/virtgpu_display.c
++++ b/drivers/gpu/drm/virtio/virtgpu_display.c
+@@ -111,7 +111,7 @@ static void virtio_gpu_crtc_atomic_disab
+ }
+ 
+ static int virtio_gpu_crtc_atomic_check(struct drm_crtc *crtc,
+-					struct drm_crtc_state *state)
++					struct drm_atomic_state *state)
+ {
+ 	return 0;
+ }
+--- a/drivers/gpu/drm/vkms/vkms_crtc.c
++++ b/drivers/gpu/drm/vkms/vkms_crtc.c
+@@ -169,9 +169,11 @@ static const struct drm_crtc_funcs vkms_
+ };
+ 
+ static int vkms_crtc_atomic_check(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *state)
++				  struct drm_atomic_state *state)
+ {
+-	struct vkms_crtc_state *vkms_state = to_vkms_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	struct vkms_crtc_state *vkms_state = to_vkms_crtc_state(crtc_state);
+ 	struct drm_plane *plane;
+ 	struct drm_plane_state *plane_state;
+ 	int i = 0, ret;
+@@ -179,12 +181,12 @@ static int vkms_crtc_atomic_check(struct
+ 	if (vkms_state->active_planes)
+ 		return 0;
+ 
+-	ret = drm_atomic_add_affected_planes(state->state, crtc);
++	ret = drm_atomic_add_affected_planes(crtc_state->state, crtc);
+ 	if (ret < 0)
+ 		return ret;
+ 
+-	drm_for_each_plane_mask(plane, crtc->dev, state->plane_mask) {
+-		plane_state = drm_atomic_get_existing_plane_state(state->state,
++	drm_for_each_plane_mask(plane, crtc->dev, crtc_state->plane_mask) {
++		plane_state = drm_atomic_get_existing_plane_state(crtc_state->state,
+ 								  plane);
+ 		WARN_ON(!plane_state);
+ 
+@@ -200,8 +202,8 @@ static int vkms_crtc_atomic_check(struct
+ 	vkms_state->num_active_planes = i;
+ 
+ 	i = 0;
+-	drm_for_each_plane_mask(plane, crtc->dev, state->plane_mask) {
+-		plane_state = drm_atomic_get_existing_plane_state(state->state,
++	drm_for_each_plane_mask(plane, crtc->dev, crtc_state->plane_mask) {
++		plane_state = drm_atomic_get_existing_plane_state(crtc_state->state,
+ 								  plane);
+ 
+ 		if (!plane_state->visible)
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+@@ -522,8 +522,10 @@ int vmw_du_cursor_plane_atomic_check(str
+ 
+ 
+ int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
+-			     struct drm_crtc_state *new_state)
++			     struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
++									 crtc);
+ 	struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
+ 	int connector_mask = drm_connector_mask(&du->connector);
+ 	bool has_primary = new_state->plane_mask &
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+@@ -473,7 +473,7 @@ void vmw_du_plane_unpin_surf(struct vmw_
+ 			     bool unreference);
+ 
+ int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
+-			     struct drm_crtc_state *state);
++			     struct drm_atomic_state *state);
+ void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
+ 			      struct drm_crtc_state *old_crtc_state);
+ void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
++++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
+@@ -1505,9 +1505,11 @@ zynqmp_disp_crtc_atomic_disable(struct d
+ }
+ 
+ static int zynqmp_disp_crtc_atomic_check(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *state)
++					 struct drm_atomic_state *state)
+ {
+-	return drm_atomic_add_affected_planes(state->state, crtc);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
+ }
+ 
+ static void
+--- a/include/drm/drm_modeset_helper_vtables.h
++++ b/include/drm/drm_modeset_helper_vtables.h
+@@ -336,8 +336,7 @@ struct drm_crtc_helper_funcs {
+ 	 *
+ 	 * This function is called in the check phase of an atomic update. The
+ 	 * driver is not allowed to change anything outside of the free-standing
+-	 * state objects passed-in or assembled in the overall &drm_atomic_state
+-	 * update tracking structure.
++	 * state object passed-in.
+ 	 *
+ 	 * Also beware that userspace can request its own custom modes, neither
+ 	 * core nor helpers filter modes to the list of probe modes reported by
+@@ -353,7 +352,7 @@ struct drm_crtc_helper_funcs {
+ 	 * deadlock.
+ 	 */
+ 	int (*atomic_check)(struct drm_crtc *crtc,
+-			    struct drm_crtc_state *state);
++			    struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @atomic_begin:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0410-drm-atomic-Pass-the-full-state-to-CRTC-atomic-begin-.patch b/target/linux/bcm27xx/patches-5.10/950-0410-drm-atomic-Pass-the-full-state-to-CRTC-atomic-begin-.patch
new file mode 100644
index 0000000000..86a918a40e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0410-drm-atomic-Pass-the-full-state-to-CRTC-atomic-begin-.patch
@@ -0,0 +1,1018 @@
+From 0dd369ae91c3c4d2db2aa292935d12db5a0d97e1 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 28 Oct 2020 13:32:22 +0100
+Subject: [PATCH] drm/atomic: Pass the full state to CRTC atomic begin
+ and flush
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Commit f6ebe9f9c9233a6114eb922aba9a0c9ccc2d2e14 upstream.
+
+The current atomic helpers have either their object state being passed as
+an argument or the full atomic state.
+
+The former is the pattern that was done at first, before switching to the
+latter for new hooks or when it was needed.
+
+Let's start convert all the remaining helpers to provide a consistent
+interface, starting with the CRTC's atomic_begin and atomic_flush.
+
+The conversion was done using the coccinelle script below, built tested on
+all the drivers and actually tested on vc4.
+
+virtual report
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+identifier old_crtc_state, old_state;
+identifier crtc;
+identifier f;
+@@
+
+ f(struct drm_crtc_state *old_crtc_state)
+ {
+	...
+ 	struct drm_atomic_state *old_state = old_crtc_state->state;
+	<...
+-	FUNCS->atomic_begin(crtc, old_crtc_state);
++	FUNCS->atomic_begin(crtc, old_state);
+	...>
+ }
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+identifier old_crtc_state, old_state;
+identifier crtc;
+identifier f;
+@@
+
+ f(struct drm_crtc_state *old_crtc_state)
+ {
+	...
+ 	struct drm_atomic_state *old_state = old_crtc_state->state;
+	<...
+-	FUNCS->atomic_flush(crtc, old_crtc_state);
++	FUNCS->atomic_flush(crtc, old_state);
+	...>
+ }
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+struct drm_crtc *crtc;
+struct drm_crtc_state *crtc_state;
+identifier dev, state;
+identifier f;
+@@
+
+ f(struct drm_device *dev, struct drm_atomic_state *state, ...)
+ {
+	<...
+-	FUNCS->atomic_begin(crtc, crtc_state);
++	FUNCS->atomic_begin(crtc, state);
+	...>
+ }
+
+@@
+struct drm_crtc_helper_funcs *FUNCS;
+struct drm_crtc *crtc;
+struct drm_crtc_state *crtc_state;
+identifier dev, state;
+identifier f;
+@@
+
+ f(struct drm_device *dev, struct drm_atomic_state *state, ...)
+ {
+	<...
+-	FUNCS->atomic_flush(crtc, crtc_state);
++	FUNCS->atomic_flush(crtc, state);
+	...>
+ }
+
+@@
+identifier crtc, old_state;
+@@
+
+ struct drm_crtc_helper_funcs {
+	...
+-	void (*atomic_begin)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
++	void (*atomic_begin)(struct drm_crtc *crtc, struct drm_atomic_state *state);
+	...
+-	void (*atomic_flush)(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
++	void (*atomic_flush)(struct drm_crtc *crtc, struct drm_atomic_state *state);
+	...
+}
+
+@ crtc_atomic_func @
+identifier helpers;
+identifier func;
+@@
+
+(
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_begin = func,
+	...,
+};
+|
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_flush = func,
+	...,
+};
+)
+
+@ ignores_old_state @
+identifier crtc_atomic_func.func;
+identifier crtc, old_state;
+@@
+
+void func(struct drm_crtc *crtc,
+		struct drm_crtc_state *old_state)
+{
+	... when != old_state
+}
+
+@ adds_old_state depends on crtc_atomic_func && !ignores_old_state @
+identifier crtc_atomic_func.func;
+identifier crtc, old_state;
+@@
+
+void func(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
+{
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
+	...
+}
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+expression E;
+type T;
+@@
+
+void func(...)
+{
+	...
+-	T state = E;
++	T crtc_state = E;
+	<+...
+-	state
++	crtc_state
+	...+>
+
+}
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+type T;
+@@
+
+void func(...)
+{
+	...
+-	T state;
++	T crtc_state;
+	<+...
+-	state
++	crtc_state
+	...+>
+
+}
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   )
+{
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
+	...
+}
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   );
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   )
+{
+	...
+}
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   );
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   )
+{
+	...
+}
+
+@@
+identifier old_state;
+identifier crtc;
+@@
+
+ void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state
++			   struct drm_atomic_state *state
+			   );
+
+@ depends on crtc_atomic_func @
+identifier crtc_atomic_func.func;
+identifier old_state;
+identifier crtc;
+@@
+
+void func(struct drm_crtc *crtc,
+-	       struct drm_crtc_state *old_state
++	       struct drm_atomic_state *state
+	       )
+		{ ... }
+
+@ include depends on adds_old_state @
+@@
+
+ #include <drm/drm_atomic.h>
+
+@ no_include depends on !include && adds_old_state @
+@@
+
++ #include <drm/drm_atomic.h>
+  #include <drm/...>
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201028123222.1732139-2-maxime@cerno.tech
+---
+ drivers/gpu/drm/arm/display/komeda/komeda_crtc.c |  4 +++-
+ drivers/gpu/drm/arm/hdlcd_crtc.c                 |  2 +-
+ drivers/gpu/drm/armada/armada_crtc.c             |  4 ++--
+ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c   |  4 ++--
+ drivers/gpu/drm/drm_atomic_helper.c              |  8 ++++----
+ drivers/gpu/drm/exynos/exynos_drm_crtc.c         |  4 ++--
+ drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c       |  2 +-
+ drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c   |  4 ++--
+ drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c  |  4 ++--
+ drivers/gpu/drm/imx/dcss/dcss-crtc.c             |  4 ++--
+ drivers/gpu/drm/imx/ipuv3-crtc.c                 |  4 ++--
+ drivers/gpu/drm/ingenic/ingenic-drm-drv.c        | 14 +++++++-------
+ drivers/gpu/drm/mediatek/mtk_drm_crtc.c          | 16 ++++++++--------
+ drivers/gpu/drm/meson/meson_crtc.c               |  4 ++--
+ drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c         |  4 ++--
+ drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c        |  4 ++--
+ drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c        |  4 ++--
+ drivers/gpu/drm/mxsfb/mxsfb_kms.c                |  2 +-
+ drivers/gpu/drm/omapdrm/omap_crtc.c              |  4 ++--
+ drivers/gpu/drm/qxl/qxl_display.c                |  2 +-
+ drivers/gpu/drm/rcar-du/rcar_du_crtc.c           |  4 ++--
+ drivers/gpu/drm/rockchip/rockchip_drm_vop.c      |  8 ++++++--
+ drivers/gpu/drm/sti/sti_crtc.c                   |  2 +-
+ drivers/gpu/drm/stm/ltdc.c                       |  2 +-
+ drivers/gpu/drm/sun4i/sun4i_crtc.c               |  6 ++++--
+ drivers/gpu/drm/tegra/dc.c                       | 10 +++++-----
+ drivers/gpu/drm/tidss/tidss_crtc.c               |  4 +++-
+ drivers/gpu/drm/tilcdc/tilcdc_crtc.c             |  2 +-
+ drivers/gpu/drm/vboxvideo/vbox_mode.c            |  2 +-
+ drivers/gpu/drm/vc4/vc4_drv.h                    |  3 ++-
+ drivers/gpu/drm/vc4/vc4_hvs.c                    |  4 +++-
+ drivers/gpu/drm/virtio/virtgpu_display.c         |  2 +-
+ drivers/gpu/drm/vkms/vkms_crtc.c                 |  4 ++--
+ drivers/gpu/drm/vmwgfx/vmwgfx_kms.c              |  4 ++--
+ drivers/gpu/drm/vmwgfx/vmwgfx_kms.h              |  4 ++--
+ drivers/gpu/drm/xlnx/zynqmp_disp.c               |  4 ++--
+ drivers/gpu/drm/zte/zx_vou.c                     |  2 +-
+ include/drm/drm_modeset_helper_vtables.h         |  4 ++--
+ 38 files changed, 91 insertions(+), 78 deletions(-)
+
+--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
++++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+@@ -385,8 +385,10 @@ komeda_crtc_atomic_disable(struct drm_cr
+ 
+ static void
+ komeda_crtc_atomic_flush(struct drm_crtc *crtc,
+-			 struct drm_crtc_state *old)
++			 struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state,
++								   crtc);
+ 	/* commit with modeset will be handled in enable/disable */
+ 	if (drm_atomic_crtc_needs_modeset(crtc->state))
+ 		return;
+--- a/drivers/gpu/drm/arm/hdlcd_crtc.c
++++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
+@@ -205,7 +205,7 @@ static enum drm_mode_status hdlcd_crtc_m
+ }
+ 
+ static void hdlcd_crtc_atomic_begin(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct drm_pending_vblank_event *event = crtc->state->event;
+ 
+--- a/drivers/gpu/drm/armada/armada_crtc.c
++++ b/drivers/gpu/drm/armada/armada_crtc.c
+@@ -429,7 +429,7 @@ static int armada_drm_crtc_atomic_check(
+ }
+ 
+ static void armada_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *old_crtc_state)
++					 struct drm_atomic_state *state)
+ {
+ 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ 
+@@ -443,7 +443,7 @@ static void armada_drm_crtc_atomic_begin
+ }
+ 
+ static void armada_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *old_crtc_state)
++					 struct drm_atomic_state *state)
+ {
+ 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
+ 
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+@@ -342,7 +342,7 @@ static int atmel_hlcdc_crtc_atomic_check
+ }
+ 
+ static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc *c,
+-					  struct drm_crtc_state *old_s)
++					  struct drm_atomic_state *state)
+ {
+ 	struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+ 
+@@ -357,7 +357,7 @@ static void atmel_hlcdc_crtc_atomic_begi
+ }
+ 
+ static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_s)
++					  struct drm_atomic_state *state)
+ {
+ 	/* TODO: write common plane control register if available */
+ }
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -2507,7 +2507,7 @@ void drm_atomic_helper_commit_planes(str
+ 		if (active_only && !new_crtc_state->active)
+ 			continue;
+ 
+-		funcs->atomic_begin(crtc, old_crtc_state);
++		funcs->atomic_begin(crtc, old_state);
+ 	}
+ 
+ 	for_each_oldnew_plane_in_state(old_state, plane, old_plane_state, new_plane_state, i) {
+@@ -2565,7 +2565,7 @@ void drm_atomic_helper_commit_planes(str
+ 		if (active_only && !new_crtc_state->active)
+ 			continue;
+ 
+-		funcs->atomic_flush(crtc, old_crtc_state);
++		funcs->atomic_flush(crtc, old_state);
+ 	}
+ }
+ EXPORT_SYMBOL(drm_atomic_helper_commit_planes);
+@@ -2603,7 +2603,7 @@ drm_atomic_helper_commit_planes_on_crtc(
+ 
+ 	crtc_funcs = crtc->helper_private;
+ 	if (crtc_funcs && crtc_funcs->atomic_begin)
+-		crtc_funcs->atomic_begin(crtc, old_crtc_state);
++		crtc_funcs->atomic_begin(crtc, old_state);
+ 
+ 	drm_for_each_plane_mask(plane, crtc->dev, plane_mask) {
+ 		struct drm_plane_state *old_plane_state =
+@@ -2629,7 +2629,7 @@ drm_atomic_helper_commit_planes_on_crtc(
+ 	}
+ 
+ 	if (crtc_funcs && crtc_funcs->atomic_flush)
+-		crtc_funcs->atomic_flush(crtc, old_crtc_state);
++		crtc_funcs->atomic_flush(crtc, old_state);
+ }
+ EXPORT_SYMBOL(drm_atomic_helper_commit_planes_on_crtc);
+ 
+--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
++++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+@@ -65,7 +65,7 @@ static int exynos_crtc_atomic_check(stru
+ }
+ 
+ static void exynos_crtc_atomic_begin(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_crtc_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ 
+@@ -74,7 +74,7 @@ static void exynos_crtc_atomic_begin(str
+ }
+ 
+ static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_crtc_state)
++				     struct drm_atomic_state *state)
+ {
+ 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ 
+--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
++++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
+@@ -21,7 +21,7 @@
+ #include "fsl_dcu_drm_plane.h"
+ 
+ static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *old_crtc_state)
++					  struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
+--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
++++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
+@@ -393,7 +393,7 @@ static void hibmc_crtc_mode_set_nofb(str
+ }
+ 
+ static void hibmc_crtc_atomic_begin(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	unsigned int reg;
+ 	struct drm_device *dev = crtc->dev;
+@@ -413,7 +413,7 @@ static void hibmc_crtc_atomic_begin(stru
+ }
+ 
+ static void hibmc_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ 
+ {
+ 	unsigned long flags;
+--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
++++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+@@ -485,7 +485,7 @@ static void ade_crtc_mode_set_nofb(struc
+ }
+ 
+ static void ade_crtc_atomic_begin(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ {
+ 	struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
+ 	struct ade_hw_ctx *ctx = kcrtc->hw_ctx;
+@@ -498,7 +498,7 @@ static void ade_crtc_atomic_begin(struct
+ }
+ 
+ static void ade_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ 
+ {
+ 	struct kirin_crtc *kcrtc = to_kirin_crtc(crtc);
+--- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c
++++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c
+@@ -53,13 +53,13 @@ static const struct drm_crtc_funcs dcss_
+ };
+ 
+ static void dcss_crtc_atomic_begin(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	drm_crtc_vblank_on(crtc);
+ }
+ 
+ static void dcss_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct dcss_crtc *dcss_crtc = container_of(crtc, struct dcss_crtc,
+ 						   base);
+--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
++++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
+@@ -240,13 +240,13 @@ static int ipu_crtc_atomic_check(struct
+ }
+ 
+ static void ipu_crtc_atomic_begin(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
+ 	drm_crtc_vblank_on(crtc);
+ }
+ 
+ static void ipu_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
+ 	spin_lock_irq(&crtc->dev->event_lock);
+ 	if (crtc->state->event) {
+--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
++++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+@@ -253,7 +253,7 @@ ingenic_drm_crtc_mode_valid(struct drm_c
+ }
+ 
+ static void ingenic_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *oldstate)
++					  struct drm_atomic_state *state)
+ {
+ 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+ 	u32 ctrl = 0;
+@@ -273,20 +273,20 @@ static void ingenic_drm_crtc_atomic_begi
+ }
+ 
+ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+-					  struct drm_crtc_state *oldstate)
++					  struct drm_atomic_state *state)
+ {
+ 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+-	struct drm_crtc_state *state = crtc->state;
+-	struct drm_pending_vblank_event *event = state->event;
++	struct drm_crtc_state *crtc_state = crtc->state;
++	struct drm_pending_vblank_event *event = crtc_state->event;
+ 
+-	if (drm_atomic_crtc_needs_modeset(state)) {
+-		ingenic_drm_crtc_update_timings(priv, &state->mode);
++	if (drm_atomic_crtc_needs_modeset(crtc_state)) {
++		ingenic_drm_crtc_update_timings(priv, &crtc_state->mode);
+ 
+ 		clk_set_rate(priv->pix_clk, state->adjusted_mode.clock * 1000);
+ 	}
+ 
+ 	if (event) {
+-		state->event = NULL;
++		crtc_state->event = NULL;
+ 
+ 		spin_lock_irq(&crtc->dev->event_lock);
+ 		if (drm_crtc_vblank_get(crtc) == 0)
+--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
++++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+@@ -575,24 +575,24 @@ static void mtk_drm_crtc_atomic_disable(
+ }
+ 
+ static void mtk_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_crtc_state)
++				      struct drm_atomic_state *state)
+ {
+-	struct mtk_crtc_state *state = to_mtk_crtc_state(crtc->state);
++	struct mtk_crtc_state *crtc_state = to_mtk_crtc_state(crtc->state);
+ 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+ 
+-	if (mtk_crtc->event && state->base.event)
++	if (mtk_crtc->event && crtc_state->base.event)
+ 		DRM_ERROR("new event while there is still a pending event\n");
+ 
+-	if (state->base.event) {
+-		state->base.event->pipe = drm_crtc_index(crtc);
++	if (crtc_state->base.event) {
++		crtc_state->base.event->pipe = drm_crtc_index(crtc);
+ 		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+-		mtk_crtc->event = state->base.event;
+-		state->base.event = NULL;
++		mtk_crtc->event = crtc_state->base.event;
++		crtc_state->base.event = NULL;
+ 	}
+ }
+ 
+ static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_crtc_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+ 	int i;
+--- a/drivers/gpu/drm/meson/meson_crtc.c
++++ b/drivers/gpu/drm/meson/meson_crtc.c
+@@ -201,7 +201,7 @@ static void meson_crtc_atomic_disable(st
+ }
+ 
+ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	unsigned long flags;
+@@ -217,7 +217,7 @@ static void meson_crtc_atomic_begin(stru
+ }
+ 
+ static void meson_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
+ 	struct meson_drm *priv = meson_crtc->priv;
+--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
++++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+@@ -486,7 +486,7 @@ static void _dpu_crtc_setup_cp_blocks(st
+ }
+ 
+ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
+-		struct drm_crtc_state *old_state)
++		struct drm_atomic_state *state)
+ {
+ 	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
+ 	struct drm_encoder *encoder;
+@@ -527,7 +527,7 @@ static void dpu_crtc_atomic_begin(struct
+ }
+ 
+ static void dpu_crtc_atomic_flush(struct drm_crtc *crtc,
+-		struct drm_crtc_state *old_crtc_state)
++		struct drm_atomic_state *state)
+ {
+ 	struct dpu_crtc *dpu_crtc;
+ 	struct drm_device *dev;
+--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
+@@ -316,14 +316,14 @@ static int mdp4_crtc_atomic_check(struct
+ }
+ 
+ static void mdp4_crtc_atomic_begin(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
+ 	DBG("%s: begin", mdp4_crtc->name);
+ }
+ 
+ static void mdp4_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
+ 	struct drm_device *dev = crtc->dev;
+--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
++++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+@@ -772,13 +772,13 @@ static int mdp5_crtc_atomic_check(struct
+ }
+ 
+ static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	DBG("%s: begin", crtc->name);
+ }
+ 
+ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
+ 	struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
+--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+@@ -286,7 +286,7 @@ static int mxsfb_crtc_atomic_check(struc
+ }
+ 
+ static void mxsfb_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct drm_pending_vblank_event *event;
+ 
+--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
++++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
+@@ -601,12 +601,12 @@ static int omap_crtc_atomic_check(struct
+ }
+ 
+ static void omap_crtc_atomic_begin(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ }
+ 
+ static void omap_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct omap_drm_private *priv = crtc->dev->dev_private;
+ 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+--- a/drivers/gpu/drm/qxl/qxl_display.c
++++ b/drivers/gpu/drm/qxl/qxl_display.c
+@@ -373,7 +373,7 @@ static void qxl_crtc_update_monitors_con
+ }
+ 
+ static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
+ 	qxl_crtc_update_monitors_config(crtc, "flush");
+ }
+--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+@@ -779,7 +779,7 @@ static void rcar_du_crtc_atomic_disable(
+ }
+ 
+ static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_crtc_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
+ 
+@@ -808,7 +808,7 @@ static void rcar_du_crtc_atomic_begin(st
+ }
+ 
+ static void rcar_du_crtc_atomic_flush(struct drm_crtc *crtc,
+-				      struct drm_crtc_state *old_crtc_state)
++				      struct drm_atomic_state *state)
+ {
+ 	struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
+ 	struct drm_device *dev = rcrtc->crtc.dev;
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+@@ -1247,8 +1247,10 @@ static void vop_crtc_gamma_set(struct vo
+ }
+ 
+ static void vop_crtc_atomic_begin(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct vop *vop = to_vop(crtc);
+ 
+ 	/*
+@@ -1463,8 +1465,10 @@ static int vop_crtc_atomic_check(struct
+ }
+ 
+ static void vop_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct drm_atomic_state *old_state = old_crtc_state->state;
+ 	struct drm_plane_state *old_plane_state, *new_plane_state;
+ 	struct vop *vop = to_vop(crtc);
+--- a/drivers/gpu/drm/sti/sti_crtc.c
++++ b/drivers/gpu/drm/sti/sti_crtc.c
+@@ -133,7 +133,7 @@ sti_crtc_mode_set_nofb(struct drm_crtc *
+ }
+ 
+ static void sti_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_crtc_state)
++				  struct drm_atomic_state *state)
+ {
+ 	struct drm_device *drm_dev = crtc->dev;
+ 	struct sti_mixer *mixer = to_sti_mixer(crtc);
+--- a/drivers/gpu/drm/stm/ltdc.c
++++ b/drivers/gpu/drm/stm/ltdc.c
+@@ -625,7 +625,7 @@ static void ltdc_crtc_mode_set_nofb(stru
+ }
+ 
+ static void ltdc_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct ltdc_device *ldev = crtc_to_ltdc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
++++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
+@@ -61,8 +61,10 @@ static int sun4i_crtc_atomic_check(struc
+ }
+ 
+ static void sun4i_crtc_atomic_begin(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct sunxi_engine *engine = scrtc->engine;
+@@ -82,7 +84,7 @@ static void sun4i_crtc_atomic_begin(stru
+ }
+ 
+ static void sun4i_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_state)
++				    struct drm_atomic_state *state)
+ {
+ 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
+ 	struct drm_pending_vblank_event *event = crtc->state->event;
+--- a/drivers/gpu/drm/tegra/dc.c
++++ b/drivers/gpu/drm/tegra/dc.c
+@@ -1924,7 +1924,7 @@ static void tegra_crtc_atomic_enable(str
+ }
+ 
+ static void tegra_crtc_atomic_begin(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
+ 	unsigned long flags;
+ 
+@@ -1943,17 +1943,17 @@ static void tegra_crtc_atomic_begin(stru
+ }
+ 
+ static void tegra_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
+-	struct tegra_dc_state *state = to_dc_state(crtc->state);
++	struct tegra_dc_state *crtc_state = to_dc_state(crtc->state);
+ 	struct tegra_dc *dc = to_tegra_dc(crtc);
+ 	u32 value;
+ 
+-	value = state->planes << 8 | GENERAL_UPDATE;
++	value = crtc_state->planes << 8 | GENERAL_UPDATE;
+ 	tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
+ 	value = tegra_dc_readl(dc, DC_CMD_STATE_CONTROL);
+ 
+-	value = state->planes | GENERAL_ACT_REQ;
++	value = crtc_state->planes | GENERAL_ACT_REQ;
+ 	tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
+ 	value = tegra_dc_readl(dc, DC_CMD_STATE_CONTROL);
+ }
+--- a/drivers/gpu/drm/tidss/tidss_crtc.c
++++ b/drivers/gpu/drm/tidss/tidss_crtc.c
+@@ -163,8 +163,10 @@ static void tidss_crtc_position_planes(s
+ }
+ 
+ static void tidss_crtc_atomic_flush(struct drm_crtc *crtc,
+-				    struct drm_crtc_state *old_crtc_state)
++				    struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
++									      crtc);
+ 	struct tidss_crtc *tcrtc = to_tidss_crtc(crtc);
+ 	struct drm_device *ddev = crtc->dev;
+ 	struct tidss_device *tidss = to_tidss(ddev);
+--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
++++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+@@ -547,7 +547,7 @@ static void tilcdc_crtc_atomic_disable(s
+ }
+ 
+ static void tilcdc_crtc_atomic_flush(struct drm_crtc *crtc,
+-				     struct drm_crtc_state *old_state)
++				     struct drm_atomic_state *state)
+ {
+ 	if (!crtc->state->event)
+ 		return;
+--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
++++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
+@@ -223,7 +223,7 @@ static void vbox_crtc_atomic_disable(str
+ }
+ 
+ static void vbox_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ }
+ 
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -928,7 +928,8 @@ int vc4_hvs_get_fifo_from_output(struct
+ int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
+ void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+ void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+-void vc4_hvs_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *state);
++void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
++			  struct drm_atomic_state *state);
+ void vc4_hvs_dump_state(struct drm_device *dev);
+ void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel);
+ void vc4_hvs_mask_underrun(struct drm_device *dev, int channel);
+--- a/drivers/gpu/drm/vc4/vc4_hvs.c
++++ b/drivers/gpu/drm/vc4/vc4_hvs.c
+@@ -453,8 +453,10 @@ void vc4_hvs_atomic_disable(struct drm_c
+ }
+ 
+ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
+-			  struct drm_crtc_state *old_state)
++			  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+ 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
+--- a/drivers/gpu/drm/virtio/virtgpu_display.c
++++ b/drivers/gpu/drm/virtio/virtgpu_display.c
+@@ -117,7 +117,7 @@ static int virtio_gpu_crtc_atomic_check(
+ }
+ 
+ static void virtio_gpu_crtc_atomic_flush(struct drm_crtc *crtc,
+-					 struct drm_crtc_state *old_state)
++					 struct drm_atomic_state *state)
+ {
+ 	struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(crtc);
+ 
+--- a/drivers/gpu/drm/vkms/vkms_crtc.c
++++ b/drivers/gpu/drm/vkms/vkms_crtc.c
+@@ -229,7 +229,7 @@ static void vkms_crtc_atomic_disable(str
+ }
+ 
+ static void vkms_crtc_atomic_begin(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct vkms_output *vkms_output = drm_crtc_to_vkms_output(crtc);
+ 
+@@ -240,7 +240,7 @@ static void vkms_crtc_atomic_begin(struc
+ }
+ 
+ static void vkms_crtc_atomic_flush(struct drm_crtc *crtc,
+-				   struct drm_crtc_state *old_crtc_state)
++				   struct drm_atomic_state *state)
+ {
+ 	struct vkms_output *vkms_output = drm_crtc_to_vkms_output(crtc);
+ 
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+@@ -554,13 +554,13 @@ int vmw_du_crtc_atomic_check(struct drm_
+ 
+ 
+ void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state)
++			      struct drm_atomic_state *state)
+ {
+ }
+ 
+ 
+ void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state)
++			      struct drm_atomic_state *state)
+ {
+ 	struct drm_pending_vblank_event *event = crtc->state->event;
+ 
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+@@ -475,9 +475,9 @@ void vmw_du_plane_unpin_surf(struct vmw_
+ int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
+ 			     struct drm_atomic_state *state);
+ void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state);
++			      struct drm_atomic_state *state);
+ void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state);
++			      struct drm_atomic_state *state);
+ void vmw_du_crtc_reset(struct drm_crtc *crtc);
+ struct drm_crtc_state *vmw_du_crtc_duplicate_state(struct drm_crtc *crtc);
+ void vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
++++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
+@@ -1514,14 +1514,14 @@ static int zynqmp_disp_crtc_atomic_check
+ 
+ static void
+ zynqmp_disp_crtc_atomic_begin(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state)
++			      struct drm_atomic_state *state)
+ {
+ 	drm_crtc_vblank_on(crtc);
+ }
+ 
+ static void
+ zynqmp_disp_crtc_atomic_flush(struct drm_crtc *crtc,
+-			      struct drm_crtc_state *old_crtc_state)
++			      struct drm_atomic_state *state)
+ {
+ 	if (crtc->state->event) {
+ 		struct drm_pending_vblank_event *event;
+--- a/drivers/gpu/drm/zte/zx_vou.c
++++ b/drivers/gpu/drm/zte/zx_vou.c
+@@ -473,7 +473,7 @@ static void zx_crtc_atomic_disable(struc
+ }
+ 
+ static void zx_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ {
+ 	struct drm_pending_vblank_event *event = crtc->state->event;
+ 
+--- a/include/drm/drm_modeset_helper_vtables.h
++++ b/include/drm/drm_modeset_helper_vtables.h
+@@ -373,7 +373,7 @@ struct drm_crtc_helper_funcs {
+ 	 * transitional plane helpers, but it is optional.
+ 	 */
+ 	void (*atomic_begin)(struct drm_crtc *crtc,
+-			     struct drm_crtc_state *old_crtc_state);
++			     struct drm_atomic_state *state);
+ 	/**
+ 	 * @atomic_flush:
+ 	 *
+@@ -397,7 +397,7 @@ struct drm_crtc_helper_funcs {
+ 	 * transitional plane helpers, but it is optional.
+ 	 */
+ 	void (*atomic_flush)(struct drm_crtc *crtc,
+-			     struct drm_crtc_state *old_crtc_state);
++			     struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @atomic_enable:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0411-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch b/target/linux/bcm27xx/patches-5.10/950-0411-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch
new file mode 100644
index 0000000000..0373e4ab71
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0411-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch
@@ -0,0 +1,109 @@
+From d584fdf44b251f77cc29330d17b60be078acb440 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 7 Dec 2020 16:57:11 +0100
+Subject: [PATCH] drm/vc4: hvs: Align the HVS atomic hooks to the new
+ API
+
+Since the CRTC setup in vc4 is split between the PixelValves/TXP and the
+HVS, only the PV/TXP atomic hooks were updated in the previous commits, but
+it makes sense to update the HVS ones too.
+
+Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 4 +---
+ drivers/gpu/drm/vc4/vc4_drv.h  | 4 ++--
+ drivers/gpu/drm/vc4/vc4_hvs.c  | 8 +++++---
+ drivers/gpu/drm/vc4/vc4_txp.c  | 8 ++------
+ 4 files changed, 10 insertions(+), 14 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -520,8 +520,6 @@ static void vc4_crtc_atomic_disable(stru
+ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
+ 				   struct drm_atomic_state *state)
+ {
+-	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+-									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+@@ -534,7 +532,7 @@ static void vc4_crtc_atomic_enable(struc
+ 	 */
+ 	drm_crtc_vblank_on(crtc);
+ 
+-	vc4_hvs_atomic_enable(crtc, old_state);
++	vc4_hvs_atomic_enable(crtc, state);
+ 
+ 	if (vc4_encoder->pre_crtc_configure)
+ 		vc4_encoder->pre_crtc_configure(encoder);
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -926,8 +926,8 @@ extern struct platform_driver vc4_hvs_dr
+ void vc4_hvs_stop_channel(struct drm_device *dev, unsigned int output);
+ int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output);
+ int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
+-void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
+-void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
++void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state);
++void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state);
+ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
+ 			  struct drm_atomic_state *state);
+ void vc4_hvs_dump_state(struct drm_device *dev);
+--- a/drivers/gpu/drm/vc4/vc4_hvs.c
++++ b/drivers/gpu/drm/vc4/vc4_hvs.c
+@@ -430,11 +430,12 @@ static void vc4_hvs_update_dlist(struct
+ }
+ 
+ void vc4_hvs_atomic_enable(struct drm_crtc *crtc,
+-			   struct drm_crtc_state *old_state)
++			   struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
++	struct drm_crtc_state *new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(new_crtc_state);
+ 	struct drm_display_mode *mode = &crtc->state->adjusted_mode;
+ 	bool oneshot = vc4_state->feed_txp;
+ 
+@@ -443,9 +444,10 @@ void vc4_hvs_atomic_enable(struct drm_cr
+ }
+ 
+ void vc4_hvs_atomic_disable(struct drm_crtc *crtc,
+-			    struct drm_crtc_state *old_state)
++			    struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc);
+ 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(old_state);
+ 	unsigned int chan = vc4_state->assigned_channel;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -406,23 +406,19 @@ static int vc4_txp_atomic_check(struct d
+ static void vc4_txp_atomic_enable(struct drm_crtc *crtc,
+ 				  struct drm_atomic_state *state)
+ {
+-	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+-									 crtc);
+ 	drm_crtc_vblank_on(crtc);
+-	vc4_hvs_atomic_enable(crtc, old_state);
++	vc4_hvs_atomic_enable(crtc, state);
+ }
+ 
+ static void vc4_txp_atomic_disable(struct drm_crtc *crtc,
+ 				   struct drm_atomic_state *state)
+ {
+-	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+-									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 
+ 	/* Disable vblank irq handling before crtc is disabled. */
+ 	drm_crtc_vblank_off(crtc);
+ 
+-	vc4_hvs_atomic_disable(crtc, old_state);
++	vc4_hvs_atomic_disable(crtc, state);
+ 
+ 	/*
+ 	 * Make sure we issue a vblank event after disabling the CRTC if
diff --git a/target/linux/bcm27xx/patches-5.10/950-0412-drm-vc4-Pass-the-atomic-state-to-encoder-hooks.patch b/target/linux/bcm27xx/patches-5.10/950-0412-drm-vc4-Pass-the-atomic-state-to-encoder-hooks.patch
new file mode 100644
index 0000000000..a887097301
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0412-drm-vc4-Pass-the-atomic-state-to-encoder-hooks.patch
@@ -0,0 +1,161 @@
+From a7a8569adc035cf74a3b82d00ba266ac9b249a15 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:36 +0100
+Subject: [PATCH] drm/vc4: Pass the atomic state to encoder hooks
+
+We'll need to access the connector state in our encoder setup, so let's
+just pass the whole DRM state to our private encoder hooks.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 18 ++++++++++--------
+ drivers/gpu/drm/vc4/vc4_drv.h  | 10 +++++-----
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 15 ++++++++++-----
+ 3 files changed, 25 insertions(+), 18 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -420,7 +420,9 @@ static void require_hvs_enabled(struct d
+ 		     SCALER_DISPCTRL_ENABLE);
+ }
+ 
+-static int vc4_crtc_disable(struct drm_crtc *crtc, unsigned int channel)
++static int vc4_crtc_disable(struct drm_crtc *crtc,
++			    struct drm_atomic_state *state,
++			    unsigned int channel)
+ {
+ 	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+@@ -452,13 +454,13 @@ static int vc4_crtc_disable(struct drm_c
+ 	mdelay(20);
+ 
+ 	if (vc4_encoder && vc4_encoder->post_crtc_disable)
+-		vc4_encoder->post_crtc_disable(encoder);
++		vc4_encoder->post_crtc_disable(encoder, state);
+ 
+ 	vc4_crtc_pixelvalve_reset(crtc);
+ 	vc4_hvs_stop_channel(dev, channel);
+ 
+ 	if (vc4_encoder && vc4_encoder->post_crtc_powerdown)
+-		vc4_encoder->post_crtc_powerdown(encoder);
++		vc4_encoder->post_crtc_powerdown(encoder, state);
+ 
+ 	return 0;
+ }
+@@ -485,7 +487,7 @@ int vc4_crtc_disable_at_boot(struct drm_
+ 	if (channel < 0)
+ 		return 0;
+ 
+-	return vc4_crtc_disable(crtc, channel);
++	return vc4_crtc_disable(crtc, NULL, channel);
+ }
+ 
+ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
+@@ -501,7 +503,7 @@ static void vc4_crtc_atomic_disable(stru
+ 	/* Disable vblank irq handling before crtc is disabled. */
+ 	drm_crtc_vblank_off(crtc);
+ 
+-	vc4_crtc_disable(crtc, old_vc4_state->assigned_channel);
++	vc4_crtc_disable(crtc, state, old_vc4_state->assigned_channel);
+ 
+ 	/*
+ 	 * Make sure we issue a vblank event after disabling the CRTC if
+@@ -535,14 +537,14 @@ static void vc4_crtc_atomic_enable(struc
+ 	vc4_hvs_atomic_enable(crtc, state);
+ 
+ 	if (vc4_encoder->pre_crtc_configure)
+-		vc4_encoder->pre_crtc_configure(encoder);
++		vc4_encoder->pre_crtc_configure(encoder, state);
+ 
+ 	vc4_crtc_config_pv(crtc);
+ 
+ 	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
+ 
+ 	if (vc4_encoder->pre_crtc_enable)
+-		vc4_encoder->pre_crtc_enable(encoder);
++		vc4_encoder->pre_crtc_enable(encoder, state);
+ 
+ 	/* When feeding the transposer block the pixelvalve is unneeded and
+ 	 * should not be enabled.
+@@ -551,7 +553,7 @@ static void vc4_crtc_atomic_enable(struc
+ 		   CRTC_READ(PV_V_CONTROL) | PV_VCONTROL_VIDEN);
+ 
+ 	if (vc4_encoder->post_crtc_enable)
+-		vc4_encoder->post_crtc_enable(encoder);
++		vc4_encoder->post_crtc_enable(encoder, state);
+ }
+ 
+ static enum drm_mode_status vc4_crtc_mode_valid(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -449,12 +449,12 @@ struct vc4_encoder {
+ 	enum vc4_encoder_type type;
+ 	u32 clock_select;
+ 
+-	void (*pre_crtc_configure)(struct drm_encoder *encoder);
+-	void (*pre_crtc_enable)(struct drm_encoder *encoder);
+-	void (*post_crtc_enable)(struct drm_encoder *encoder);
++	void (*pre_crtc_configure)(struct drm_encoder *encoder, struct drm_atomic_state *state);
++	void (*pre_crtc_enable)(struct drm_encoder *encoder, struct drm_atomic_state *state);
++	void (*post_crtc_enable)(struct drm_encoder *encoder, struct drm_atomic_state *state);
+ 
+-	void (*post_crtc_disable)(struct drm_encoder *encoder);
+-	void (*post_crtc_powerdown)(struct drm_encoder *encoder);
++	void (*post_crtc_disable)(struct drm_encoder *encoder, struct drm_atomic_state *state);
++	void (*post_crtc_powerdown)(struct drm_encoder *encoder, struct drm_atomic_state *state);
+ };
+ 
+ static inline struct vc4_encoder *
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -411,7 +411,8 @@ static void vc4_hdmi_set_infoframes(stru
+ 		vc4_hdmi_set_audio_infoframe(encoder);
+ }
+ 
+-static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder)
++static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
++					       struct drm_atomic_state *state)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 
+@@ -424,7 +425,8 @@ static void vc4_hdmi_encoder_post_crtc_d
+ 		   HDMI_READ(HDMI_VID_CTL) | VC4_HD_VID_CTL_BLANKPIX);
+ }
+ 
+-static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder)
++static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder,
++						 struct drm_atomic_state *state)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	int ret;
+@@ -637,7 +639,8 @@ static void vc4_hdmi_recenter_fifo(struc
+ 		  "VC4_HDMI_FIFO_CTL_RECENTER_DONE");
+ }
+ 
+-static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder)
++static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
++						struct drm_atomic_state *state)
+ {
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+@@ -719,7 +722,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		vc4_hdmi->variant->set_timings(vc4_hdmi, mode);
+ }
+ 
+-static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder)
++static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder,
++					     struct drm_atomic_state *state)
+ {
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ 	struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
+@@ -741,7 +745,8 @@ static void vc4_hdmi_encoder_pre_crtc_en
+ 	HDMI_WRITE(HDMI_FIFO_CTL, VC4_HDMI_FIFO_CTL_MASTER_SLAVE_N);
+ }
+ 
+-static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder)
++static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder,
++					      struct drm_atomic_state *state)
+ {
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0413-drm-vc4-hdmi-Don-t-access-the-connector-state-in-res.patch b/target/linux/bcm27xx/patches-5.10/950-0413-drm-vc4-hdmi-Don-t-access-the-connector-state-in-res.patch
new file mode 100644
index 0000000000..4d0a4e056e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0413-drm-vc4-hdmi-Don-t-access-the-connector-state-in-res.patch
@@ -0,0 +1,35 @@
+From e1b4f5c3970e14abe197f328077b348b4969e68f Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:38 +0100
+Subject: [PATCH] drm/vc4: hdmi: Don't access the connector state in
+ reset if kmalloc fails
+
+drm_atomic_helper_connector_reset uses kmalloc which, from an API
+standpoint, can fail, and thus setting connector->state to NULL.
+However, our reset hook then calls drm_atomic_helper_connector_tv_reset
+that will access connector->state without checking if it's a valid
+pointer or not.
+
+Make sure we don't end up accessing a NULL pointer.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Suggested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -215,7 +215,9 @@ static int vc4_hdmi_connector_get_modes(
+ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
+ {
+ 	drm_atomic_helper_connector_reset(connector);
+-	drm_atomic_helper_connector_tv_reset(connector);
++
++	if (connector->state)
++		drm_atomic_helper_connector_tv_reset(connector);
+ }
+ 
+ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0414-drm-vc4-hdmi-Create-a-custom-connector-state.patch b/target/linux/bcm27xx/patches-5.10/950-0414-drm-vc4-hdmi-Create-a-custom-connector-state.patch
new file mode 100644
index 0000000000..31ffe4d5d4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0414-drm-vc4-hdmi-Create-a-custom-connector-state.patch
@@ -0,0 +1,88 @@
+From e072b2d845ff91716d630f4d2a105bf63698cfe1 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:39 +0100
+Subject: [PATCH] drm/vc4: hdmi: Create a custom connector state
+
+When run with a higher bpc than 8, the clock of the HDMI controller needs
+to be adjusted. Let's create a connector state that will be used at
+atomic_check and atomic_enable to compute and store the clock rate
+associated to the state.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 33 ++++++++++++++++++++++++++++++---
+ drivers/gpu/drm/vc4/vc4_hdmi.h | 10 ++++++++++
+ 2 files changed, 40 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -214,10 +214,37 @@ static int vc4_hdmi_connector_get_modes(
+ 
+ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
+ {
+-	drm_atomic_helper_connector_reset(connector);
++	struct vc4_hdmi_connector_state *old_state =
++		conn_state_to_vc4_hdmi_conn_state(connector->state);
++	struct vc4_hdmi_connector_state *new_state =
++		kzalloc(sizeof(*new_state), GFP_KERNEL);
+ 
+ 	if (connector->state)
+-		drm_atomic_helper_connector_tv_reset(connector);
++		__drm_atomic_helper_connector_destroy_state(connector->state);
++
++	kfree(old_state);
++	__drm_atomic_helper_connector_reset(connector, &new_state->base);
++
++	if (!new_state)
++		return;
++
++	drm_atomic_helper_connector_tv_reset(connector);
++}
++
++static struct drm_connector_state *
++vc4_hdmi_connector_duplicate_state(struct drm_connector *connector)
++{
++	struct drm_connector_state *conn_state = connector->state;
++	struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state);
++	struct vc4_hdmi_connector_state *new_state;
++
++	new_state = kzalloc(sizeof(*new_state), GFP_KERNEL);
++	if (!new_state)
++		return NULL;
++
++	__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
++
++	return &new_state->base;
+ }
+ 
+ static const struct drm_connector_funcs vc4_hdmi_connector_funcs = {
+@@ -225,7 +252,7 @@ static const struct drm_connector_funcs
+ 	.fill_modes = drm_helper_probe_single_connector_modes,
+ 	.destroy = vc4_hdmi_connector_destroy,
+ 	.reset = vc4_hdmi_connector_reset,
+-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
++	.atomic_duplicate_state = vc4_hdmi_connector_duplicate_state,
+ 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+ };
+ 
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -187,6 +187,16 @@ encoder_to_vc4_hdmi(struct drm_encoder *
+ 	return container_of(_encoder, struct vc4_hdmi, encoder);
+ }
+ 
++struct vc4_hdmi_connector_state {
++	struct drm_connector_state	base;
++};
++
++static inline struct vc4_hdmi_connector_state *
++conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
++{
++	return container_of(conn_state, struct vc4_hdmi_connector_state, base);
++}
++
+ void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
+ 		       struct drm_display_mode *mode);
+ void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0415-drm-vc4-hdmi-Store-pixel-frequency-in-the-connector-.patch b/target/linux/bcm27xx/patches-5.10/950-0415-drm-vc4-hdmi-Store-pixel-frequency-in-the-connector-.patch
new file mode 100644
index 0000000000..ebeadd64f6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0415-drm-vc4-hdmi-Store-pixel-frequency-in-the-connector-.patch
@@ -0,0 +1,97 @@
+From 1dd22d945a99fa35e387e01101c758ae7be3d9a4 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:40 +0100
+Subject: [PATCH] drm/vc4: hdmi: Store pixel frequency in the connector
+ state
+
+The pixel rate is for now quite simple to compute, but with more features
+(30 and 36 bits output, YUV output, etc.) will depend on a bunch of
+connectors properties.
+
+Let's store the rate we have to run the pixel clock at in our custom
+connector state, and compute it in atomic_check.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 26 +++++++++++++++++++++++++-
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  1 +
+ 2 files changed, 26 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -242,6 +242,7 @@ vc4_hdmi_connector_duplicate_state(struc
+ 	if (!new_state)
+ 		return NULL;
+ 
++	new_state->pixel_rate = vc4_state->pixel_rate;
+ 	__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
+ 
+ 	return &new_state->base;
+@@ -668,9 +669,29 @@ static void vc4_hdmi_recenter_fifo(struc
+ 		  "VC4_HDMI_FIFO_CTL_RECENTER_DONE");
+ }
+ 
++static struct drm_connector_state *
++vc4_hdmi_encoder_get_connector_state(struct drm_encoder *encoder,
++				     struct drm_atomic_state *state)
++{
++	struct drm_connector_state *conn_state;
++	struct drm_connector *connector;
++	unsigned int i;
++
++	for_each_new_connector_in_state(state, connector, conn_state, i) {
++		if (conn_state->best_encoder == encoder)
++			return conn_state;
++	}
++
++	return NULL;
++}
++
+ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
+ 						struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *conn_state =
++		vc4_hdmi_encoder_get_connector_state(encoder, state);
++	struct vc4_hdmi_connector_state *vc4_conn_state =
++		conn_state_to_vc4_hdmi_conn_state(conn_state);
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	unsigned long pixel_rate, hsm_rate;
+@@ -682,7 +703,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		return;
+ 	}
+ 
+-	pixel_rate = mode->clock * 1000 * ((mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1);
++	pixel_rate = vc4_conn_state->pixel_rate;
+ 	ret = clk_set_rate(vc4_hdmi->pixel_clock, pixel_rate);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to set pixel clock rate: %d\n", ret);
+@@ -844,6 +865,7 @@ static int vc4_hdmi_encoder_atomic_check
+ 					 struct drm_crtc_state *crtc_state,
+ 					 struct drm_connector_state *conn_state)
+ {
++	struct vc4_hdmi_connector_state *vc4_state = conn_state_to_vc4_hdmi_conn_state(conn_state);
+ 	struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	unsigned long long pixel_rate = mode->clock * 1000;
+@@ -874,6 +896,8 @@ static int vc4_hdmi_encoder_atomic_check
+ 	if (pixel_rate > vc4_hdmi->variant->max_pixel_clock)
+ 		return -EINVAL;
+ 
++	vc4_state->pixel_rate = pixel_rate;
++
+ 	return 0;
+ }
+ 
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -189,6 +189,7 @@ encoder_to_vc4_hdmi(struct drm_encoder *
+ 
+ struct vc4_hdmi_connector_state {
+ 	struct drm_connector_state	base;
++	unsigned long long		pixel_rate;
+ };
+ 
+ static inline struct vc4_hdmi_connector_state *
diff --git a/target/linux/bcm27xx/patches-5.10/950-0416-drm-vc4-hdmi-Use-the-connector-state-pixel-rate-for-.patch b/target/linux/bcm27xx/patches-5.10/950-0416-drm-vc4-hdmi-Use-the-connector-state-pixel-rate-for-.patch
new file mode 100644
index 0000000000..b1de0c29ee
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0416-drm-vc4-hdmi-Use-the-connector-state-pixel-rate-for-.patch
@@ -0,0 +1,102 @@
+From 6d15419acb9914041e90bc88044d87bbcdcfec00 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:41 +0100
+Subject: [PATCH] drm/vc4: hdmi: Use the connector state pixel rate for
+ the PHY
+
+The PHY initialisation parameters are not based on the pixel clock but
+the TMDS clock rate which can be the pixel clock in the standard case,
+but could be adjusted based on some parameters like the bits per color.
+
+Since the TMDS clock rate is stored in our custom connector state
+already, let's reuse it from there instead of computing it again.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c     |  2 +-
+ drivers/gpu/drm/vc4/vc4_hdmi.h     | 11 +++++------
+ drivers/gpu/drm/vc4/vc4_hdmi_phy.c |  8 +++++---
+ 3 files changed, 11 insertions(+), 10 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -761,7 +761,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	}
+ 
+ 	if (vc4_hdmi->variant->phy_init)
+-		vc4_hdmi->variant->phy_init(vc4_hdmi, mode);
++		vc4_hdmi->variant->phy_init(vc4_hdmi, vc4_conn_state);
+ 
+ 	HDMI_WRITE(HDMI_SCHEDULER_CONTROL,
+ 		   HDMI_READ(HDMI_SCHEDULER_CONTROL) |
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -21,10 +21,9 @@ to_vc4_hdmi_encoder(struct drm_encoder *
+ 	return container_of(encoder, struct vc4_hdmi_encoder, base.base);
+ }
+ 
+-struct drm_display_mode;
+-
+ struct vc4_hdmi;
+ struct vc4_hdmi_register;
++struct vc4_hdmi_connector_state;
+ 
+ enum vc4_hdmi_phy_channel {
+ 	PHY_LANE_0 = 0,
+@@ -77,9 +76,9 @@ struct vc4_hdmi_variant {
+ 	void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
+ 			    struct drm_display_mode *mode);
+ 
+-	/* Callback to initialize the PHY according to the mode */
++	/* Callback to initialize the PHY according to the connector state */
+ 	void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
+-			 struct drm_display_mode *mode);
++			 struct vc4_hdmi_connector_state *vc4_conn_state);
+ 
+ 	/* Callback to disable the PHY */
+ 	void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
+@@ -199,13 +198,13 @@ conn_state_to_vc4_hdmi_conn_state(struct
+ }
+ 
+ void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
+-		       struct drm_display_mode *mode);
++		       struct vc4_hdmi_connector_state *vc4_conn_state);
+ void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
+ void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
+ void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
+ 
+ void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
+-		       struct drm_display_mode *mode);
++		       struct vc4_hdmi_connector_state *vc4_conn_state);
+ void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
+ void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
+ void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
+--- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
+@@ -127,7 +127,8 @@
+ 
+ #define OSCILLATOR_FREQUENCY	54000000
+ 
+-void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode)
++void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
++		       struct vc4_hdmi_connector_state *conn_state)
+ {
+ 	/* PHY should be in reset, like
+ 	 * vc4_hdmi_encoder_disable() does.
+@@ -339,11 +340,12 @@ static void vc5_hdmi_reset_phy(struct vc
+ 	HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, BIT(10));
+ }
+ 
+-void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode)
++void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
++		       struct vc4_hdmi_connector_state *conn_state)
+ {
+ 	const struct phy_lane_settings *chan0_settings, *chan1_settings, *chan2_settings, *clock_settings;
+ 	const struct vc4_hdmi_variant *variant = vc4_hdmi->variant;
+-	unsigned long long pixel_freq = mode->clock * 1000;
++	unsigned long long pixel_freq = conn_state->pixel_rate;
+ 	unsigned long long vco_freq;
+ 	unsigned char word_sel;
+ 	u8 vco_sel, vco_div;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0417-drm-vc4-hdmi-Enable-10-12-bpc-output.patch b/target/linux/bcm27xx/patches-5.10/950-0417-drm-vc4-hdmi-Enable-10-12-bpc-output.patch
new file mode 100644
index 0000000000..ac821dd45a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0417-drm-vc4-hdmi-Enable-10-12-bpc-output.patch
@@ -0,0 +1,203 @@
+From 72a998c1462527c2d61c2f9a38525c99da442fb4 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:43 +0100
+Subject: [PATCH] drm/vc4: hdmi: Enable 10/12 bpc output
+
+The BCM2711 supports higher bpc count than just 8, so let's support it in
+our driver.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c      | 70 ++++++++++++++++++++++++++++-
+ drivers/gpu/drm/vc4/vc4_hdmi.h      |  1 +
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h |  9 ++++
+ 3 files changed, 79 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -77,6 +77,17 @@
+ #define VC5_HDMI_VERTB_VSPO_SHIFT		16
+ #define VC5_HDMI_VERTB_VSPO_MASK		VC4_MASK(29, 16)
+ 
++#define VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_SHIFT	8
++#define VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_MASK	VC4_MASK(10, 8)
++
++#define VC5_HDMI_DEEP_COLOR_CONFIG_1_COLOR_DEPTH_SHIFT		0
++#define VC5_HDMI_DEEP_COLOR_CONFIG_1_COLOR_DEPTH_MASK		VC4_MASK(3, 0)
++
++#define VC5_HDMI_GCP_CONFIG_GCP_ENABLE		BIT(31)
++
++#define VC5_HDMI_GCP_WORD_1_GCP_SUBPACKET_BYTE_1_SHIFT	8
++#define VC5_HDMI_GCP_WORD_1_GCP_SUBPACKET_BYTE_1_MASK	VC4_MASK(15, 8)
++
+ # define VC4_HD_M_SW_RST			BIT(2)
+ # define VC4_HD_M_ENABLE			BIT(0)
+ 
+@@ -228,6 +239,8 @@ static void vc4_hdmi_connector_reset(str
+ 	if (!new_state)
+ 		return;
+ 
++	new_state->base.max_bpc = 8;
++	new_state->base.max_requested_bpc = 8;
+ 	drm_atomic_helper_connector_tv_reset(connector);
+ }
+ 
+@@ -274,12 +287,20 @@ static int vc4_hdmi_connector_init(struc
+ 				    vc4_hdmi->ddc);
+ 	drm_connector_helper_add(connector, &vc4_hdmi_connector_helper_funcs);
+ 
++	/*
++	 * Some of the properties below require access to state, like bpc.
++	 * Allocate some default initial connector state with our reset helper.
++	 */
++	if (connector->funcs->reset)
++		connector->funcs->reset(connector);
++
+ 	/* Create and attach TV margin props to this connector. */
+ 	ret = drm_mode_create_tv_margin_properties(dev);
+ 	if (ret)
+ 		return ret;
+ 
+ 	drm_connector_attach_tv_margin_properties(connector);
++	drm_connector_attach_max_bpc_property(connector, 8, 12);
+ 
+ 	connector->polled = (DRM_CONNECTOR_POLL_CONNECT |
+ 			     DRM_CONNECTOR_POLL_DISCONNECT);
+@@ -554,6 +575,7 @@ static void vc5_hdmi_csc_setup(struct vc
+ }
+ 
+ static void vc4_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
++				 struct drm_connector_state *state,
+ 				 struct drm_display_mode *mode)
+ {
+ 	bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
+@@ -597,7 +619,9 @@ static void vc4_hdmi_set_timings(struct
+ 	HDMI_WRITE(HDMI_VERTB0, vertb_even);
+ 	HDMI_WRITE(HDMI_VERTB1, vertb);
+ }
++
+ static void vc5_hdmi_set_timings(struct vc4_hdmi *vc4_hdmi,
++				 struct drm_connector_state *state,
+ 				 struct drm_display_mode *mode)
+ {
+ 	bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC;
+@@ -617,6 +641,9 @@ static void vc5_hdmi_set_timings(struct
+ 					mode->crtc_vsync_end -
+ 					interlaced,
+ 					VC4_HDMI_VERTB_VBP));
++	unsigned char gcp;
++	bool gcp_en;
++	u32 reg;
+ 
+ 	HDMI_WRITE(HDMI_VEC_INTERFACE_XBAR, 0x354021);
+ 	HDMI_WRITE(HDMI_HORZA,
+@@ -642,6 +669,39 @@ static void vc5_hdmi_set_timings(struct
+ 	HDMI_WRITE(HDMI_VERTB0, vertb_even);
+ 	HDMI_WRITE(HDMI_VERTB1, vertb);
+ 
++	switch (state->max_bpc) {
++	case 12:
++		gcp = 6;
++		gcp_en = true;
++		break;
++	case 10:
++		gcp = 5;
++		gcp_en = true;
++		break;
++	case 8:
++	default:
++		gcp = 4;
++		gcp_en = false;
++		break;
++	}
++
++	reg = HDMI_READ(HDMI_DEEP_COLOR_CONFIG_1);
++	reg &= ~(VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_MASK |
++		 VC5_HDMI_DEEP_COLOR_CONFIG_1_COLOR_DEPTH_MASK);
++	reg |= VC4_SET_FIELD(2, VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE) |
++	       VC4_SET_FIELD(gcp, VC5_HDMI_DEEP_COLOR_CONFIG_1_COLOR_DEPTH);
++	HDMI_WRITE(HDMI_DEEP_COLOR_CONFIG_1, reg);
++
++	reg = HDMI_READ(HDMI_GCP_WORD_1);
++	reg &= ~VC5_HDMI_GCP_WORD_1_GCP_SUBPACKET_BYTE_1_MASK;
++	reg |= VC4_SET_FIELD(gcp, VC5_HDMI_GCP_WORD_1_GCP_SUBPACKET_BYTE_1);
++	HDMI_WRITE(HDMI_GCP_WORD_1, reg);
++
++	reg = HDMI_READ(HDMI_GCP_CONFIG);
++	reg &= ~VC5_HDMI_GCP_CONFIG_GCP_ENABLE;
++	reg |= gcp_en ? VC5_HDMI_GCP_CONFIG_GCP_ENABLE : 0;
++	HDMI_WRITE(HDMI_GCP_CONFIG, reg);
++
+ 	HDMI_WRITE(HDMI_CLOCK_STOP, 0);
+ }
+ 
+@@ -769,7 +829,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		   VC4_HDMI_SCHEDULER_CONTROL_IGNORE_VSYNC_PREDICTS);
+ 
+ 	if (vc4_hdmi->variant->set_timings)
+-		vc4_hdmi->variant->set_timings(vc4_hdmi, mode);
++		vc4_hdmi->variant->set_timings(vc4_hdmi, conn_state, mode);
+ }
+ 
+ static void vc4_hdmi_encoder_pre_crtc_enable(struct drm_encoder *encoder,
+@@ -890,6 +950,14 @@ static int vc4_hdmi_encoder_atomic_check
+ 		pixel_rate = mode->clock * 1000;
+ 	}
+ 
++	if (conn_state->max_bpc == 12) {
++		pixel_rate = pixel_rate * 150;
++		do_div(pixel_rate, 100);
++	} else if (conn_state->max_bpc == 10) {
++		pixel_rate = pixel_rate * 125;
++		do_div(pixel_rate, 100);
++	}
++
+ 	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
+ 		pixel_rate = pixel_rate * 2;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -74,6 +74,7 @@ struct vc4_hdmi_variant {
+ 
+ 	/* Callback to configure the video timings in the HDMI block */
+ 	void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
++			    struct drm_connector_state *state,
+ 			    struct drm_display_mode *mode);
+ 
+ 	/* Callback to initialize the PHY according to the connector state */
+--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
+@@ -60,9 +60,12 @@ enum vc4_hdmi_field {
+ 	 */
+ 	HDMI_CTS_0,
+ 	HDMI_CTS_1,
++	HDMI_DEEP_COLOR_CONFIG_1,
+ 	HDMI_DVP_CTL,
+ 	HDMI_FIFO_CTL,
+ 	HDMI_FRAME_COUNT,
++	HDMI_GCP_CONFIG,
++	HDMI_GCP_WORD_1,
+ 	HDMI_HORZA,
+ 	HDMI_HORZB,
+ 	HDMI_HOTPLUG,
+@@ -231,6 +234,9 @@ static const struct vc4_hdmi_register vc
+ 	VC4_HDMI_REG(HDMI_VERTB1, 0x0f8),
+ 	VC4_HDMI_REG(HDMI_MAI_CHANNEL_MAP, 0x09c),
+ 	VC4_HDMI_REG(HDMI_MAI_CONFIG, 0x0a0),
++	VC4_HDMI_REG(HDMI_DEEP_COLOR_CONFIG_1, 0x170),
++	VC4_HDMI_REG(HDMI_GCP_CONFIG, 0x178),
++	VC4_HDMI_REG(HDMI_GCP_WORD_1, 0x17c),
+ 	VC4_HDMI_REG(HDMI_HOTPLUG, 0x1a8),
+ 
+ 	VC5_DVP_REG(HDMI_CLOCK_STOP, 0x0bc),
+@@ -307,6 +313,9 @@ static const struct vc4_hdmi_register vc
+ 	VC4_HDMI_REG(HDMI_VERTB1, 0x0f8),
+ 	VC4_HDMI_REG(HDMI_MAI_CHANNEL_MAP, 0x09c),
+ 	VC4_HDMI_REG(HDMI_MAI_CONFIG, 0x0a0),
++	VC4_HDMI_REG(HDMI_DEEP_COLOR_CONFIG_1, 0x170),
++	VC4_HDMI_REG(HDMI_GCP_CONFIG, 0x178),
++	VC4_HDMI_REG(HDMI_GCP_WORD_1, 0x17c),
+ 	VC4_HDMI_REG(HDMI_HOTPLUG, 0x1a8),
+ 
+ 	VC5_DVP_REG(HDMI_CLOCK_STOP, 0x0bc),
diff --git a/target/linux/bcm27xx/patches-5.10/950-0418-drm-vc4-Fixup-fkms-for-API-change.patch b/target/linux/bcm27xx/patches-5.10/950-0418-drm-vc4-Fixup-fkms-for-API-change.patch
new file mode 100644
index 0000000000..ca271279c4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0418-drm-vc4-Fixup-fkms-for-API-change.patch
@@ -0,0 +1,50 @@
+From 3adbeebf1fb33937d8b5ef52103b7721621c57b1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 1 Dec 2020 14:57:41 +0000
+Subject: [PATCH] drm/vc4: Fixup fkms for API change
+
+Atomic flush and check changed API, so fix up the downstream-only
+FKMS driver.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 13 +++++++++----
+ 1 file changed, 9 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -1107,16 +1107,18 @@ vc4_crtc_mode_valid(struct drm_crtc *crt
+ }
+ 
+ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
+-				 struct drm_crtc_state *state)
++				 struct drm_atomic_state *state)
+ {
+-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
++									  crtc);
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	struct drm_connector *conn;
+ 	struct drm_connector_state *conn_state;
+ 	int i;
+ 
+ 	DRM_DEBUG_KMS("[CRTC:%d] crtc_atomic_check.\n", crtc->base.id);
+ 
+-	for_each_new_connector_in_state(state->state, conn, conn_state, i) {
++	for_each_new_connector_in_state(crtc_state->state, conn, conn_state, i) {
+ 		if (conn_state->crtc != crtc)
+ 			continue;
+ 
+@@ -1130,8 +1132,11 @@ static int vc4_crtc_atomic_check(struct
+ }
+ 
+ static void vc4_crtc_atomic_flush(struct drm_crtc *crtc,
+-				  struct drm_crtc_state *old_state)
++				  struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
++									 crtc);
++
+ 	DRM_DEBUG_KMS("[CRTC:%d] crtc_atomic_flush.\n",
+ 		      crtc->base.id);
+ 	if (crtc->state->active && old_state->active && crtc->state->event)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0419-overlays-Rebuild-upstream-with-latest-ovmerge.patch b/target/linux/bcm27xx/patches-5.10/950-0419-overlays-Rebuild-upstream-with-latest-ovmerge.patch
new file mode 100644
index 0000000000..ec110189df
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0419-overlays-Rebuild-upstream-with-latest-ovmerge.patch
@@ -0,0 +1,291 @@
+From 9deb443820a6cbcc39446928bab722a2a6c1f72a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 30 Dec 2020 20:00:38 +0000
+Subject: [PATCH] overlays: Rebuild "upstream" with latest ovmerge
+
+The latest ovmerge drops disabled fragments, causing the "upstream"
+overlay to change.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../boot/dts/overlays/upstream-overlay.dts    | 38 ++++-------
+ .../dts/overlays/upstream-pi4-overlay.dts     | 66 +++++--------------
+ 2 files changed, 31 insertions(+), 73 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/upstream-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-overlay.dts
+@@ -8,96 +8,84 @@
+ / {
+ 	compatible = "brcm,bcm2835";
+ 	fragment@0 {
+-		target = <&cma>;
+-		__dormant__ {
+-			size = <0x10000000>;
+-		};
+-	};
+-	fragment@1 {
+ 		target = <&i2c2>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@2 {
++	fragment@1 {
+ 		target = <&fb>;
+ 		__overlay__ {
+ 			status = "disabled";
+ 		};
+ 	};
+-	fragment@3 {
++	fragment@2 {
+ 		target = <&pixelvalve0>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@4 {
++	fragment@3 {
+ 		target = <&pixelvalve1>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@5 {
++	fragment@4 {
+ 		target = <&pixelvalve2>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@6 {
++	fragment@5 {
+ 		target = <&hvs>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@7 {
++	fragment@6 {
+ 		target = <&hdmi>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@8 {
++	fragment@7 {
+ 		target = <&v3d>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@9 {
++	fragment@8 {
+ 		target = <&vc4>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@10 {
++	fragment@9 {
+ 		target = <&clocks>;
+ 		__overlay__ {
+ 			claim-clocks = <BCM2835_PLLD_DSI0 BCM2835_PLLD_DSI1 BCM2835_PLLH_AUX BCM2835_PLLH_PIX>;
+ 		};
+ 	};
+-	fragment@11 {
++	fragment@10 {
+ 		target = <&vec>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@12 {
++	fragment@11 {
+ 		target = <&txp>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@13 {
+-		target = <&hdmi>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@14 {
++	fragment@12 {
+ 		target = <&audio>;
+ 		__overlay__ {
+ 			brcm,disable-hdmi;
+ 		};
+ 	};
+-	fragment@15 {
++	fragment@13 {
+ 		target = <&usb>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;
+--- a/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+@@ -8,144 +8,114 @@
+ / {
+ 	compatible = "brcm,bcm2835";
+ 	fragment@0 {
+-		target = <&cma>;
+-		__dormant__ {
+-			size = <0x10000000>;
+-		};
+-	};
+-	fragment@1 {
+ 		target = <&ddc0>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@2 {
++	fragment@1 {
+ 		target = <&ddc1>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@3 {
++	fragment@2 {
+ 		target = <&hdmi0>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@4 {
++	fragment@3 {
+ 		target = <&hdmi1>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@5 {
++	fragment@4 {
+ 		target = <&hvs>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@6 {
++	fragment@5 {
+ 		target = <&pixelvalve0>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@7 {
++	fragment@6 {
+ 		target = <&pixelvalve1>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@8 {
++	fragment@7 {
+ 		target = <&pixelvalve2>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@9 {
++	fragment@8 {
+ 		target = <&pixelvalve3>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@10 {
++	fragment@9 {
+ 		target = <&pixelvalve4>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@11 {
++	fragment@10 {
+ 		target = <&v3d>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@12 {
++	fragment@11 {
+ 		target = <&vc4>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@13 {
++	fragment@12 {
+ 		target = <&txp>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@14 {
++	fragment@13 {
+ 		target = <&fb>;
+ 		__overlay__ {
+ 			status = "disabled";
+ 		};
+ 	};
+-	fragment@15 {
++	fragment@14 {
+ 		target = <&firmwarekms>;
+ 		__overlay__ {
+ 			status = "disabled";
+ 		};
+ 	};
+-	fragment@16 {
++	fragment@15 {
+ 		target = <&vec>;
+ 		__overlay__ {
+ 			status = "disabled";
+ 		};
+ 	};
+-	fragment@17 {
+-		target = <&hdmi0>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@18 {
+-		target = <&hdmi1>;
+-		__dormant__ {
+-			dmas;
+-		};
+-	};
+-	fragment@19 {
++	fragment@16 {
+ 		target = <&audio>;
+ 		__overlay__ {
+ 			brcm,disable-hdmi;
+ 		};
+ 	};
+-	fragment@20 {
++	fragment@17 {
+ 		target = <&dvp>;
+ 		__overlay__ {
+ 			status = "okay";
+ 		};
+ 	};
+-	fragment@21 {
+-		target = <&pixelvalve3>;
+-		__dormant__ {
+-			status = "okay";
+-		};
+-	};
+-	fragment@22 {
+-		target = <&vec>;
+-		__dormant__ {
+-			status = "okay";
+-		};
+-	};
+-	fragment@23 {
++	fragment@18 {
+ 		target = <&usb>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0420-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT-4034.patch b/target/linux/bcm27xx/patches-5.10/950-0420-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT-4034.patch
new file mode 100644
index 0000000000..f526a1573c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0420-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT-4034.patch
@@ -0,0 +1,217 @@
+From 0f49536b413a81aedb9635c7b2613ca5a8d554c4 Mon Sep 17 00:00:00 2001
+From: menschel <menschel.p@posteo.de>
+Date: Wed, 30 Dec 2020 21:55:34 +0100
+Subject: [PATCH] Add overlay for Seeed Studio CAN BUS FD HAT (#4034)
+
+This patch adds the overlay for the Seeed Studio CAN BUS FD HAT
+with two CAN FD Channels and an RTC.
+https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html
+
+The overlay was generated by
+ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 \
+           mcp251xfd-overlay.dts,spi0-1,interrupt=24 \
+           i2c-rtc-overlay.dts,pcf85063
+
+
+Also, add description on how to generate overlays
+
+Signed-off-by: Patrick Menschel <menschel.p@posteo.de>
+---
+ arch/arm/boot/dts/overlays/Makefile           |   1 +
+ arch/arm/boot/dts/overlays/README             |  46 +++++++
+ .../dts/overlays/seeed-can-fd-hat-overlay.dts | 117 ++++++++++++++++++
+ 3 files changed, 164 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/seeed-can-fd-hat-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -161,6 +161,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	sc16is752-spi1.dtbo \
+ 	sdhost.dtbo \
+ 	sdio.dtbo \
++	seeed-can-fd-hat.dtbo \
+ 	sh1106-spi.dtbo \
+ 	smi.dtbo \
+ 	smi-dev.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -81,6 +81,44 @@ Parameters usually have default values,
+ mandatory. See the list of overlays below for a description of the parameters
+ and their defaults.
+ 
++Making new Overlays based on existing Overlays
++==============================================
++
++Recent overlays have been designed in a more general way, so that they can be
++adapted to hardware by changing their parameters. When you have additional
++hardware with more than one device of a kind, you end up using the same overlay
++multiple times with other parameters, e.g.
++
++    # 2 CAN FD interfaces on spi but with different pins
++    dtoverlay=mcp251xfd,spi0-0,interrupt=25
++    dtoverlay=mcp251xfd,spi0-1,interrupt=24
++
++    # a realtime clock on i2c
++    dtoverlay=i2c-rtc,pcf85063
++
++While this approach does work, it requires knowledge about the hardware design.
++It is more feasible to simplify things for the end user by providing a single
++overlay as it is done the traditional way.
++
++A new overlay can be generated by using ovmerge utility.
++https://github.com/raspberrypi/utils/blob/master/ovmerge/ovmerge
++
++To generate an overlay for the above configuration we pass the configuration
++to ovmerge and add the -c flag.
++
++    ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 \
++               mcp251xfd-overlay.dts,spi0-1,interrupt=24 \
++               i2c-rtc-overlay.dts,pcf85063 \
++    >> merged-overlay.dts
++
++The -c option writes the command above as a comment into the overlay as
++a marker that this overlay is generated and how it was generated.
++After compiling the overlay it can be loaded in a single line.
++
++    dtoverlay=merged
++
++It does the same as the original configuration but without parameters.
++
+ The Overlay and Parameter Reference
+ ===================================
+ 
+@@ -2466,6 +2504,14 @@ Info:   This overlay is now deprecated.
+ Load:   <Deprecated>
+ 
+ 
++Name:   seeed-can-fd-hat
++Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels and an
++        RTC.
++        https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html
++Load:   dtoverlay=seeed-can-fd-hat
++Params: <None>
++
++
+ Name:   sh1106-spi
+ Info:   Overlay for SH1106 OLED via SPI using fbtft staging driver.
+ Load:   dtoverlay=sh1106-spi,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/seeed-can-fd-hat-overlay.dts
+@@ -0,0 +1,117 @@
++// redo: ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 mcp251xfd-overlay.dts,spi0-1,interrupt=24 i2c-rtc-overlay.dts,pcf85063
++
++// Device tree overlay for https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html 
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins: mcp251xfd_spi0_0_pins {
++				brcm,pins = <25>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@2 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc: mcp251xfd-spi0-0-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@3 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@0 {
++				compatible = "microchip,mcp251xfd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc>;
++			};
++		};
++	};
++	fragment@4 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@5 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins_1: mcp251xfd_spi0_1_pins {
++				brcm,pins = <24>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@6 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc_1: mcp251xfd-spi0-1-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@7 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@1 {
++				compatible = "microchip,mcp251xfd";
++				reg = <1>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins_1>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc_1>;
++			};
++		};
++	};
++	fragment@8 {
++		target = <&i2cbus>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pcf85063@51 {
++				compatible = "nxp,pcf85063";
++				reg = <0x51>;
++			};
++		};
++	};
++	fragment@9 {
++		target = <&i2c_arm>;
++		i2cbus: __overlay__ {
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0421-vc-sm-cma-fixed-kbuild-problem.patch b/target/linux/bcm27xx/patches-5.10/950-0421-vc-sm-cma-fixed-kbuild-problem.patch
new file mode 100644
index 0000000000..47b39ad21b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0421-vc-sm-cma-fixed-kbuild-problem.patch
@@ -0,0 +1,30 @@
+From 2e4145c9a9d22423d11ad33d56b01bc2973bcdbe Mon Sep 17 00:00:00 2001
+From: gesangtome <gesangtome@foxmail.com>
+Date: Fri, 1 Jan 2021 18:03:17 +0800
+Subject: [PATCH] vc-sm-cma: fixed kbuild problem
+
+error logs:
+  drivers/staging/vc04_services/vc-sm-cma/Kconfig:1:error: recursive dependency detected!
+  drivers/staging/vc04_services/vc-sm-cma/Kconfig:1:      symbol BCM_VC_SM_CMA is selected by BCM2835_VCHIQ_MMAL
+  drivers/staging/vc04_services/vchiq-mmal/Kconfig:1:     symbol BCM2835_VCHIQ_MMAL depends on BCM2835_VCHIQ
+  drivers/staging/vc04_services/Kconfig:14:       symbol BCM2835_VCHIQ is selected by BCM_VC_SM_CMA
+  For a resolution refer to Documentation/kbuild/kconfig-language.rst
+  subsection "Kconfig recursive dependency limitations"
+
+Tested-by: make ARCH=arm64 bcm2711_defconfig
+Test platform: fedora 33
+Branch: rpi-5.10.y
+---
+ drivers/staging/vc04_services/vchiq-mmal/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/Kconfig
++++ b/drivers/staging/vc04_services/vchiq-mmal/Kconfig
+@@ -1,6 +1,6 @@
+ config BCM2835_VCHIQ_MMAL
+ 	tristate "BCM2835 MMAL VCHIQ service"
+-	depends on BCM2835_VCHIQ
++	select BCM2835_VCHIQ
+ 	select BCM_VC_SM_CMA
+ 	help
+ 	  Enables the MMAL API over VCHIQ interface as used for the
diff --git a/target/linux/bcm27xx/patches-5.10/950-0422-staging-vc04-services-codec-Fix-logical-precedence-i.patch b/target/linux/bcm27xx/patches-5.10/950-0422-staging-vc04-services-codec-Fix-logical-precedence-i.patch
new file mode 100644
index 0000000000..7d81cdfb02
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0422-staging-vc04-services-codec-Fix-logical-precedence-i.patch
@@ -0,0 +1,36 @@
+From 984a05a26dacc21487d4b0fef4296dd695f3e0d8 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Sat, 2 Jan 2021 10:51:58 +0000
+Subject: [PATCH] staging/vc04-services/codec: Fix logical precedence
+ issue
+
+Two issues identified with operator precedence in logical
+expressions. Fix them.
+
+https://github.com/raspberrypi/linux/issues/4040
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c  | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -908,7 +908,7 @@ static void op_buffer_cb(struct vchiq_mm
+ 		/* stream ended, or buffer being returned during disable. */
+ 		v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: Empty buffer - flags %04x",
+ 			 __func__, mmal_buf->mmal_flags);
+-		if (!mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS) {
++		if (!(mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_EOS)) {
+ 			vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_ERROR);
+ 			if (!port->enabled)
+ 				complete(&ctx->frame_cmplt);
+@@ -1135,7 +1135,7 @@ static int vidioc_try_fmt(struct bcm2835
+ 	if (f->fmt.pix_mp.height > MAX_H)
+ 		f->fmt.pix_mp.height = MAX_H;
+ 
+-	if (!fmt->flags & V4L2_FMT_FLAG_COMPRESSED) {
++	if (!(fmt->flags & V4L2_FMT_FLAG_COMPRESSED)) {
+ 		/* Only clip min w/h on capture. Treat 0x0 as unknown. */
+ 		if (f->fmt.pix_mp.width < MIN_W)
+ 			f->fmt.pix_mp.width = MIN_W;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0423-staging-vc04_services-Add-additional-unpacked-raw-fo.patch b/target/linux/bcm27xx/patches-5.10/950-0423-staging-vc04_services-Add-additional-unpacked-raw-fo.patch
new file mode 100644
index 0000000000..cd3cced2ae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0423-staging-vc04_services-Add-additional-unpacked-raw-fo.patch
@@ -0,0 +1,51 @@
+From 44d7b4f2225a120a4ecaa3b0528c9fc9ce6bfafb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 10:43:20 +0000
+Subject: [PATCH] staging/vc04_services: Add additional unpacked raw
+ formats
+
+Support has been added for the unpacked (16bpp) versions of
+the MIPI raw 10, 12, and 14 formats, so add the 4CCs for them.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/vchiq-mmal/mmal-encodings.h | 22 +++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-encodings.h
+@@ -102,12 +102,34 @@
+ #define MMAL_ENCODING_BAYER_SGRBG16    MMAL_FOURCC('G', 'R', '1', '6')
+ #define MMAL_ENCODING_BAYER_SRGGB16    MMAL_FOURCC('R', 'G', '1', '6')
+ 
++/* 10 bit per pixel unpacked (16bit) Bayer formats. */
++#define MMAL_ENCODING_BAYER_SBGGR10    MMAL_FOURCC('B', 'G', '1', '0')
++#define MMAL_ENCODING_BAYER_SGRBG10    MMAL_FOURCC('B', 'A', '1', '0')
++#define MMAL_ENCODING_BAYER_SGBRG10    MMAL_FOURCC('G', 'B', '1', '0')
++#define MMAL_ENCODING_BAYER_SRGGB10    MMAL_FOURCC('R', 'G', '1', '0')
++
++/* 12 bit per pixel unpacked (16bit) Bayer formats */
++#define MMAL_ENCODING_BAYER_SBGGR12    MMAL_FOURCC('B', 'G', '1', '2')
++#define MMAL_ENCODING_BAYER_SGRBG12    MMAL_FOURCC('B', 'A', '1', '2')
++#define MMAL_ENCODING_BAYER_SGBRG12    MMAL_FOURCC('G', 'B', '1', '2')
++#define MMAL_ENCODING_BAYER_SRGGB12    MMAL_FOURCC('R', 'G', '1', '2')
++
++/* 14 bit per pixel unpacked (16bit) Bayer formats */
++#define MMAL_ENCODING_BAYER_SBGGR14    MMAL_FOURCC('B', 'G', '1', '4')
++#define MMAL_ENCODING_BAYER_SGBRG14    MMAL_FOURCC('G', 'B', '1', '4')
++#define MMAL_ENCODING_BAYER_SGRBG14    MMAL_FOURCC('G', 'R', '1', '4')
++#define MMAL_ENCODING_BAYER_SRGGB14    MMAL_FOURCC('R', 'G', '1', '4')
++
+ /* MIPI packed monochrome images */
+ #define MMAL_ENCODING_GREY    MMAL_FOURCC('G', 'R', 'E', 'Y')
+ #define MMAL_ENCODING_Y10P    MMAL_FOURCC('Y', '1', '0', 'P')
+ #define MMAL_ENCODING_Y12P    MMAL_FOURCC('Y', '1', '2', 'P')
+ #define MMAL_ENCODING_Y14P    MMAL_FOURCC('Y', '1', '4', 'P')
+ #define MMAL_ENCODING_Y16     MMAL_FOURCC('Y', '1', '6', ' ')
++/* Unpacked monochrome formats (16bit per sample, but only N LSBs used) */
++#define MMAL_ENCODING_Y10     MMAL_FOURCC('Y', '1', '0', ' ')
++#define MMAL_ENCODING_Y12     MMAL_FOURCC('Y', '1', '2', ' ')
++#define MMAL_ENCODING_Y14     MMAL_FOURCC('Y', '1', '4', ' ')
+ 
+ /** An EGL image handle
+  */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0424-staging-bcm2835-codec-Add-the-unpacked-16bpp-raw-for.patch b/target/linux/bcm27xx/patches-5.10/950-0424-staging-bcm2835-codec-Add-the-unpacked-16bpp-raw-for.patch
new file mode 100644
index 0000000000..1f85d7deb8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0424-staging-bcm2835-codec-Add-the-unpacked-16bpp-raw-for.patch
@@ -0,0 +1,167 @@
+From 49a0627f025c62465563090dc7785ba6c9764bcd Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 10:45:16 +0000
+Subject: [PATCH] staging/bcm2835-codec: Add the unpacked (16bpp) raw
+ formats
+
+Now that the firmware supports the unpacked (16bpp) variants
+of the MIPI raw formats, add the mappings.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c        | 128 +++++++++++++++++-
+ 1 file changed, 126 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -381,6 +381,106 @@ static const struct bcm2835_codec_fmt su
+ 		.size_multiplier_x2	= 2,
+ 		.is_bayer		= true,
+ 	}, {
++		/* Bayer formats unpacked to 16bpp */
++		/* 10 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB10,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB10,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR10,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR10,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG10,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG10,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG10,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG10,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 12 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB12,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB12,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR12,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR12,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG12,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG12,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG12,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG12,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		/* 14 bit */
++		.fourcc			= V4L2_PIX_FMT_SRGGB14,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SRGGB14,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SBGGR14,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SBGGR14,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGRBG14,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGRBG14,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
++		.fourcc			= V4L2_PIX_FMT_SGBRG14,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_BAYER_SGBRG14,
++		.size_multiplier_x2	= 2,
++		.is_bayer		= true,
++	}, {
+ 		/* Monochrome MIPI formats */
+ 		/* 8 bit */
+ 		.fourcc			= V4L2_PIX_FMT_GREY,
+@@ -422,6 +522,30 @@ static const struct bcm2835_codec_fmt su
+ 		.mmal_fmt		= MMAL_ENCODING_Y16,
+ 		.size_multiplier_x2	= 2,
+ 	}, {
++		/* 10 bit as 16bpp */
++		.fourcc			= V4L2_PIX_FMT_Y10,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y10,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 12 bit as 16bpp */
++		.fourcc			= V4L2_PIX_FMT_Y12,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y12,
++		.size_multiplier_x2	= 2,
++	}, {
++		/* 14 bit as 16bpp */
++		.fourcc			= V4L2_PIX_FMT_Y14,
++		.depth			= 16,
++		.bytesperline_align	= 32,
++		.flags			= 0,
++		.mmal_fmt		= MMAL_ENCODING_Y14,
++		.size_multiplier_x2	= 2,
++	}, {
+ 		/* Compressed formats */
+ 		.fourcc			= V4L2_PIX_FMT_H264,
+ 		.depth			= 0,
+@@ -2681,10 +2805,10 @@ static const struct v4l2_m2m_ops m2m_ops
+ 
+ /* Size of the array to provide to the VPU when asking for the list of supported
+  * formats.
+- * The ISP component currently advertises 44 input formats, so add a small
++ * The ISP component currently advertises 62 input formats, so add a small
+  * overhead on that.
+  */
+-#define MAX_SUPPORTED_ENCODINGS 50
++#define MAX_SUPPORTED_ENCODINGS 70
+ 
+ /* Populate dev->supported_fmts with the formats supported by those ports. */
+ static int bcm2835_codec_get_supported_fmts(struct bcm2835_codec_dev *dev)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0425-staging-bcm2835-codec-Log-the-number-of-excess-suppo.patch b/target/linux/bcm27xx/patches-5.10/950-0425-staging-bcm2835-codec-Log-the-number-of-excess-suppo.patch
new file mode 100644
index 0000000000..7b05309e9a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0425-staging-bcm2835-codec-Log-the-number-of-excess-suppo.patch
@@ -0,0 +1,43 @@
+From fec4f38da35da73f0ee3b28ad7daaf4a97855ea7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 11:41:26 +0000
+Subject: [PATCH] staging/bcm2835-codec: Log the number of excess
+ supported formats
+
+When logging that the firmware has provided more supported formats
+than we had allocated storage for, log the number allocated and
+returned.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -2836,8 +2836,10 @@ static int bcm2835_codec_get_supported_f
+ 
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+-			v4l2_err(&dev->v4l2_dev, "%s: port has more encoding than we provided space for. Some are dropped.\n",
+-				 __func__);
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 __func__, param_size / sizeof(u32),
++				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
+ 		} else {
+ 			v4l2_err(&dev->v4l2_dev, "%s: get_param ret %u.\n",
+@@ -2880,8 +2882,10 @@ static int bcm2835_codec_get_supported_f
+ 
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+-			v4l2_err(&dev->v4l2_dev, "%s: port has more encoding than we provided space for. Some are dropped.\n",
+-				 __func__);
++			v4l2_err(&dev->v4l2_dev,
++				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 __func__, param_size / sizeof(u32),
++				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
+ 		} else {
+ 			ret = -EINVAL;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0426-staging-bcm2835-isp-Add-the-unpacked-16bpp-raw-forma.patch b/target/linux/bcm27xx/patches-5.10/950-0426-staging-bcm2835-isp-Add-the-unpacked-16bpp-raw-forma.patch
new file mode 100644
index 0000000000..2df09e2f33
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0426-staging-bcm2835-isp-Add-the-unpacked-16bpp-raw-forma.patch
@@ -0,0 +1,174 @@
+From 9a021facd450a55231938131702cbc8b4e9c92e7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 11:37:10 +0000
+Subject: [PATCH] staging/bcm2835-isp: Add the unpacked (16bpp) raw
+ formats
+
+Now that the firmware supports the unpacked (16bpp) variants
+of the MIPI raw formats, add the mappings.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-isp/bcm2835-isp-fmts.h            | 127 ++++++++++++++++++
+ .../bcm2835-isp/bcm2835-v4l2-isp.c            |   4 +-
+ 2 files changed, 129 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+@@ -298,6 +298,106 @@ static const struct bcm2835_isp_fmt supp
+ 		.colorspace	    = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
++		/* Bayer formats unpacked to 16bpp */
++		/* 10 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB10,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB10,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR10,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR10,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG10,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG10,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG10,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG10,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 12 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB12,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB12,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR12,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR12,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG12,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG12,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG12,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG12,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 14 bit */
++		.fourcc		    = V4L2_PIX_FMT_SRGGB14,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB14,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SBGGR14,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR14,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGRBG14,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG14,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		.fourcc		    = V4L2_PIX_FMT_SGBRG14,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG14,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
+ 		/* Monochrome MIPI formats */
+ 		/* 8 bit */
+ 		.fourcc		    = V4L2_PIX_FMT_GREY,
+@@ -343,6 +443,33 @@ static const struct bcm2835_isp_fmt supp
+ 		.size_multiplier_x2 = 2,
+ 		.colorspace	    = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
++	}, {
++		/* 10 bit as 16bpp */
++		.fourcc		    = V4L2_PIX_FMT_Y10,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y10,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 12 bit as 16bpp */
++		.fourcc		    = V4L2_PIX_FMT_Y12,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y12,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
++	}, {
++		/* 14 bit as 16bpp */
++		.fourcc		    = V4L2_PIX_FMT_Y14,
++		.depth		    = 16,
++		.bytesperline_align = 32,
++		.mmal_fmt	    = MMAL_ENCODING_Y14,
++		.size_multiplier_x2 = 2,
++		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_META_FMT_BCM2835_ISP_STATS,
+ 		.mmal_fmt	    = MMAL_ENCODING_BRCM_STATS,
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -1146,11 +1146,11 @@ static const struct v4l2_ioctl_ops bcm28
+  * Size of the array to provide to the VPU when asking for the list of supported
+  * formats.
+  *
+- * The ISP component currently advertises 44 input formats, so add a small
++ * The ISP component currently advertises 62 input formats, so add a small
+  * overhead on that. Should the component advertise more formats then the excess
+  * will be dropped and a warning logged.
+  */
+-#define MAX_SUPPORTED_ENCODINGS 50
++#define MAX_SUPPORTED_ENCODINGS 70
+ 
+ /* Populate node->supported_fmts with the formats supported by those ports. */
+ static int bcm2835_isp_get_supported_fmts(struct bcm2835_isp_node *node)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0427-staging-bcm2835-isp-Log-the-number-of-excess-support.patch b/target/linux/bcm27xx/patches-5.10/950-0427-staging-bcm2835-isp-Log-the-number-of-excess-support.patch
new file mode 100644
index 0000000000..09f13dc6dc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0427-staging-bcm2835-isp-Log-the-number-of-excess-support.patch
@@ -0,0 +1,29 @@
+From 6d82a5755bd242633d3640bf0fff5b05d52c4e01 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 11:43:22 +0000
+Subject: [PATCH] staging/bcm2835-isp: Log the number of excess
+ supported formats
+
+When logging that the firmware has provided more supported formats
+than we had allocated storage for, log the number allocated and
+returned.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -1169,8 +1169,9 @@ static int bcm2835_isp_get_supported_fmt
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: port has more encoding than we provided space for. Some are dropped.\n",
+-				 __func__);
++				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 __func__, param_size / sizeof(u32),
++				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
+ 		} else {
+ 			v4l2_err(&dev->v4l2_dev, "%s: get_param ret %u.\n",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0428-bcm2835-dma-Add-bcm2835-dma-Add-DMA_WIDE_SOURCE-and-.patch b/target/linux/bcm27xx/patches-5.10/950-0428-bcm2835-dma-Add-bcm2835-dma-Add-DMA_WIDE_SOURCE-and-.patch
new file mode 100644
index 0000000000..c7ea30c239
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0428-bcm2835-dma-Add-bcm2835-dma-Add-DMA_WIDE_SOURCE-and-.patch
@@ -0,0 +1,64 @@
+From 7ab9c31d27699755870da3bae07b4a0f167b4284 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 30 Dec 2020 14:51:29 +0000
+Subject: [PATCH] bcm2835-dma: Add bcm2835-dma: Add DMA_WIDE_SOURCE and
+ DMA_WIDE_DEST flags
+
+Use (reserved) bits 24 and 25 of the dreq value
+(the second cell of the DT DMA descriptor) to request
+that wide source reads or wide dest writes are required
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/dma/bcm2835-dma.c | 19 ++++++++++++++++---
+ 1 file changed, 16 insertions(+), 3 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -171,6 +171,17 @@ struct bcm2835_desc {
+ #define WAIT_RESP(x) ((x & BCM2835_DMA_NO_WAIT_RESP) ? \
+ 		      0 : BCM2835_DMA_WAIT_RESP)
+ 
++/* A fake bit to request that the driver requires wide reads */
++#define BCM2835_DMA_WIDE_SOURCE BIT(24)
++#define WIDE_SOURCE(x) ((x & BCM2835_DMA_WIDE_SOURCE) ? \
++		      BCM2835_DMA_S_WIDTH : 0)
++
++/* A fake bit to request that the driver requires wide writes */
++#define BCM2835_DMA_WIDE_DEST BIT(25)
++#define WIDE_DEST(x) ((x & BCM2835_DMA_WIDE_DEST) ? \
++		      BCM2835_DMA_D_WIDTH : 0)
++
++
+ /* debug register bits */
+ #define BCM2835_DMA_DEBUG_LAST_NOT_SET_ERR	BIT(0)
+ #define BCM2835_DMA_DEBUG_FIFO_ERR		BIT(1)
+@@ -850,7 +861,8 @@ static struct dma_async_tx_descriptor *b
+ {
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+-	u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC;
++	u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC |
++		   WIDE_SOURCE(c->dreq) | WIDE_DEST(c->dreq);
+ 	u32 extra = BCM2835_DMA_INT_EN | WAIT_RESP(c->dreq);
+ 	size_t max_len = bcm2835_dma_max_frame_length(c);
+ 	size_t frames;
+@@ -881,7 +893,8 @@ static struct dma_async_tx_descriptor *b
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+ 	dma_addr_t src = 0, dst = 0;
+-	u32 info = WAIT_RESP(c->dreq);
++	u32 info = WAIT_RESP(c->dreq) |
++		   WIDE_SOURCE(c->dreq) | WIDE_DEST(c->dreq);
+ 	u32 extra = BCM2835_DMA_INT_EN;
+ 	size_t frames;
+ 
+@@ -943,7 +956,7 @@ static struct dma_async_tx_descriptor *b
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+ 	dma_addr_t src, dst;
+-	u32 info = WAIT_RESP(c->dreq);
++	u32 info = WAIT_RESP(c->dreq) | WIDE_SOURCE(c->dreq) | WIDE_DEST(c->dreq);
+ 	u32 extra = 0;
+ 	size_t max_len = bcm2835_dma_max_frame_length(c);
+ 	size_t frames;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0429-bcm2835-dma-Move-WAIT_RESP-from-extra-to-info.patch b/target/linux/bcm27xx/patches-5.10/950-0429-bcm2835-dma-Move-WAIT_RESP-from-extra-to-info.patch
new file mode 100644
index 0000000000..b1f19739f1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0429-bcm2835-dma-Move-WAIT_RESP-from-extra-to-info.patch
@@ -0,0 +1,25 @@
+From 319fb2652bdfc0176ec8c69ce612c0f0dcc4a0ed Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 11 Jan 2021 14:49:33 +0000
+Subject: [PATCH] bcm2835-dma: Move WAIT_RESP from extra to info
+
+Questionable: Might want to drop
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/dma/bcm2835-dma.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -861,9 +861,9 @@ static struct dma_async_tx_descriptor *b
+ {
+ 	struct bcm2835_chan *c = to_bcm2835_dma_chan(chan);
+ 	struct bcm2835_desc *d;
+-	u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC |
++	u32 info = BCM2835_DMA_D_INC | BCM2835_DMA_S_INC | WAIT_RESP(c->dreq) |
+ 		   WIDE_SOURCE(c->dreq) | WIDE_DEST(c->dreq);
+-	u32 extra = BCM2835_DMA_INT_EN | WAIT_RESP(c->dreq);
++	u32 extra = BCM2835_DMA_INT_EN;
+ 	size_t max_len = bcm2835_dma_max_frame_length(c);
+ 	size_t frames;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0430-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch b/target/linux/bcm27xx/patches-5.10/950-0430-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch
new file mode 100644
index 0000000000..c9f3514a06
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0430-bcm2835-dma-Avoid-losing-CS-flags-after-interrupt.patch
@@ -0,0 +1,21 @@
+From 5226757c28364667ee1a6acad60dd76fc3394e34 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 6 Jan 2021 18:16:10 +0000
+Subject: [PATCH] bcm2835-dma: Avoid losing CS flags after interrupt
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/dma/bcm2835-dma.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/dma/bcm2835-dma.c
++++ b/drivers/dma/bcm2835-dma.c
+@@ -715,7 +715,7 @@ static irqreturn_t bcm2835_dma_callback(
+ 	 * if this IRQ handler is threaded.) If the channel is finished, it
+ 	 * will remain idle despite the ACTIVE flag being set.
+ 	 */
+-	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
++	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
+ 	       c->chan_base + BCM2835_DMA_CS);
+ 
+ 	d = c->desc;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0431-dt-Enable-DMA_WIDE_SOURCE-and-DMA_WIDE_DEST-for-hdmi.patch b/target/linux/bcm27xx/patches-5.10/950-0431-dt-Enable-DMA_WIDE_SOURCE-and-DMA_WIDE_DEST-for-hdmi.patch
new file mode 100644
index 0000000000..e5a9ef642a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0431-dt-Enable-DMA_WIDE_SOURCE-and-DMA_WIDE_DEST-for-hdmi.patch
@@ -0,0 +1,43 @@
+From 4e79497bed02399934bdc8beaa980cb4b7bdf19f Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 11 Jan 2021 13:06:23 +0000
+Subject: [PATCH] dt: Enable DMA_WIDE_SOURCE and DMA_WIDE_DEST for hdmi
+ audio
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi    | 4 ++--
+ arch/arm/boot/dts/bcm2835-common.dtsi | 2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -179,7 +179,7 @@
+ };
+ 
+ &hdmi0 {
+-	dmas = <&dma (10|(1<<27))>;
++	dmas = <&dma (10|(1<<27)|(1<<24))>;
+ 	status = "disabled";
+ };
+ 
+@@ -188,7 +188,7 @@
+ };
+ 
+ &hdmi1 {
+-	dmas = <&dma (17|(1<<27))>;
++	dmas = <&dma (17|(1<<27)|(1<<24))>;
+ 	status = "disabled";
+ };
+ 
+--- a/arch/arm/boot/dts/bcm2835-common.dtsi
++++ b/arch/arm/boot/dts/bcm2835-common.dtsi
+@@ -123,7 +123,7 @@
+ 			clocks = <&clocks BCM2835_PLLH_PIX>,
+ 				 <&clocks BCM2835_CLOCK_HSM>;
+ 			clock-names = "pixel", "hdmi";
+-			dmas = <&dma (17|(1<<27))>;
++			dmas = <&dma (17|(1<<27)|(1<<24))>;
+ 			dma-names = "audio-rx";
+ 			status = "disabled";
+ 		};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0432-bcm2711-rpi.dtsi-Bump-hdmi-audio-dma-panic-priority-.patch b/target/linux/bcm27xx/patches-5.10/950-0432-bcm2711-rpi.dtsi-Bump-hdmi-audio-dma-panic-priority-.patch
new file mode 100644
index 0000000000..e838df50c6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0432-bcm2711-rpi.dtsi-Bump-hdmi-audio-dma-panic-priority-.patch
@@ -0,0 +1,33 @@
+From c6faef087c0a9a5f89dd29e1a557cb3dfc4b993b Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 6 Jan 2021 18:16:29 +0000
+Subject: [PATCH] bcm2711-rpi.dtsi: Bump hdmi audio dma panic priority
+ to max
+
+Set panic priority to 15 and leave normal priority at 0
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -179,7 +179,7 @@
+ };
+ 
+ &hdmi0 {
+-	dmas = <&dma (10|(1<<27)|(1<<24))>;
++	dmas = <&dma (10|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
+ 	status = "disabled";
+ };
+ 
+@@ -188,7 +188,7 @@
+ };
+ 
+ &hdmi1 {
+-	dmas = <&dma (17|(1<<27)|(1<<24))>;
++	dmas = <&dma (17|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
+ 	status = "disabled";
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0433-media-i2c-ov5647-Selection-compliance-fixes.patch b/target/linux/bcm27xx/patches-5.10/950-0433-media-i2c-ov5647-Selection-compliance-fixes.patch
new file mode 100644
index 0000000000..c5bd53423f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0433-media-i2c-ov5647-Selection-compliance-fixes.patch
@@ -0,0 +1,88 @@
+From 86d0f09da59d89d549c1ce4c0996d5c84e9d7d7a Mon Sep 17 00:00:00 2001
+From: Paul Elder <paul.elder@ideasonboard.com>
+Date: Tue, 22 Dec 2020 14:27:46 +0900
+Subject: [PATCH] media: i2c: ov5647: Selection compliance fixes
+
+To comply with the intended usage of the V4L2 selection target when
+used to retrieve a sensor image properties, adjust the rectangles
+returned by the ov5647 driver.
+
+The top/left crop coordinates of the TGT_CROP rectangle were set to
+(0, 0) instead of (16, 16) which is the offset from the larger physical
+pixel array rectangle. This was also a mismatch with the default values
+crop rectangle value, so this is corrected. Found with v4l2-compliance.
+
+While at it, add V4L2_SEL_TGT_CROP_BOUNDS support: CROP_DEFAULT and
+CROP_BOUNDS have the same size as the non-active pixels are not readable
+using the selection API. Found with v4l2-compliance.
+
+Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
+---
+ drivers/media/i2c/ov5647.c | 21 +++++++++++----------
+ 1 file changed, 11 insertions(+), 10 deletions(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -606,8 +606,8 @@ static struct ov5647_mode supported_mode
+ 			.height = 480
+ 		},
+ 		.crop = {
+-			.left = 0,
+-			.top = 0,
++			.left = OV5647_PIXEL_ARRAY_LEFT,
++			.top = OV5647_PIXEL_ARRAY_TOP,
+ 			.width = 1280,
+ 			.height = 960,
+ 		},
+@@ -632,8 +632,8 @@ static struct ov5647_mode supported_mode
+ 			.height = 1944
+ 		},
+ 		.crop = {
+-			.left = 0,
+-			.top = 0,
++			.left = OV5647_PIXEL_ARRAY_LEFT,
++			.top = OV5647_PIXEL_ARRAY_TOP,
+ 			.width = 2592,
+ 			.height = 1944
+ 		},
+@@ -656,8 +656,8 @@ static struct ov5647_mode supported_mode
+ 			.height = 1080
+ 		},
+ 		.crop = {
+-			.left = 348,
+-			.top = 434,
++			.left = 364,
++			.top = 450,
+ 			.width = 1928,
+ 			.height = 1080,
+ 		},
+@@ -679,8 +679,8 @@ static struct ov5647_mode supported_mode
+ 			.height = 972
+ 		},
+ 		.crop = {
+-			.left = 0,
+-			.top = 0,
++			.left = OV5647_PIXEL_ARRAY_LEFT,
++			.top = OV5647_PIXEL_ARRAY_TOP,
+ 			.width = 2592,
+ 			.height = 1944,
+ 		},
+@@ -703,8 +703,8 @@ static struct ov5647_mode supported_mode
+ 			.height = 480
+ 		},
+ 		.crop = {
+-			.left = 16,
+-			.top = 0,
++			.left = OV5647_PIXEL_ARRAY_LEFT,
++			.top = OV5647_PIXEL_ARRAY_TOP,
+ 			.width = 2560,
+ 			.height = 1920,
+ 		},
+@@ -1080,6 +1080,7 @@ static int ov5647_get_selection(struct v
+ 		return 0;
+ 
+ 	case V4L2_SEL_TGT_CROP_DEFAULT:
++	case V4L2_SEL_TGT_CROP_BOUNDS:
+ 		sel->r.top = OV5647_PIXEL_ARRAY_TOP;
+ 		sel->r.left = OV5647_PIXEL_ARRAY_LEFT;
+ 		sel->r.width = OV5647_PIXEL_ARRAY_WIDTH;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0434-overlays-give-Seeed-Studio-CAN-BUS-FD-HAT-a-v2-postf.patch b/target/linux/bcm27xx/patches-5.10/950-0434-overlays-give-Seeed-Studio-CAN-BUS-FD-HAT-a-v2-postf.patch
new file mode 100644
index 0000000000..5a4205e4e5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0434-overlays-give-Seeed-Studio-CAN-BUS-FD-HAT-a-v2-postf.patch
@@ -0,0 +1,286 @@
+From 69da0bd66630848403a1ccbb927d5325fc54381e Mon Sep 17 00:00:00 2001
+From: Marc Kleine-Budde <mkl@pengutronix.de>
+Date: Sat, 2 Jan 2021 21:08:59 +0100
+Subject: [PATCH] overlays: give Seeed Studio CAN BUS FD HAT a -v2
+ postfix
+
+There are several versions of the Seeed Studio CAN BUS FD HAT. This is the
+second version, based on the mcp2518fd, so give it a -v2 postfix.
+
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+---
+ arch/arm/boot/dts/overlays/Makefile                       | 2 +-
+ arch/arm/boot/dts/overlays/README                         | 8 ++++----
+ ...fd-hat-overlay.dts => seeed-can-fd-hat-v2-overlay.dts} | 0
+ 3 files changed, 5 insertions(+), 5 deletions(-)
+ rename arch/arm/boot/dts/overlays/{seeed-can-fd-hat-overlay.dts => seeed-can-fd-hat-v2-overlay.dts} (100%)
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -161,7 +161,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	sc16is752-spi1.dtbo \
+ 	sdhost.dtbo \
+ 	sdio.dtbo \
+-	seeed-can-fd-hat.dtbo \
++	seeed-can-fd-hat-v2.dtbo \
+ 	sh1106-spi.dtbo \
+ 	smi.dtbo \
+ 	smi-dev.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2504,11 +2504,11 @@ Info:   This overlay is now deprecated.
+ Load:   <Deprecated>
+ 
+ 
+-Name:   seeed-can-fd-hat
+-Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels and an
+-        RTC.
++Name:   seeed-can-fd-hat-v2
++Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels
++        (based on the mcp2518fd) and an RTC.
+         https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html
+-Load:   dtoverlay=seeed-can-fd-hat
++Load:   dtoverlay=seeed-can-fd-hat-v2
+ Params: <None>
+ 
+ 
+--- a/arch/arm/boot/dts/overlays/seeed-can-fd-hat-overlay.dts
++++ /dev/null
+@@ -1,117 +0,0 @@
+-// redo: ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 mcp251xfd-overlay.dts,spi0-1,interrupt=24 i2c-rtc-overlay.dts,pcf85063
+-
+-// Device tree overlay for https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html 
+-
+-/dts-v1/;
+-/plugin/;
+-
+-#include <dt-bindings/gpio/gpio.h>
+-#include <dt-bindings/interrupt-controller/irq.h>
+-#include <dt-bindings/pinctrl/bcm2835.h>
+-
+-/ {
+-	compatible = "brcm,bcm2835";
+-	fragment@0 {
+-		target = <&spidev0>;
+-		__overlay__ {
+-			status = "disabled";
+-		};
+-	};
+-	fragment@1 {
+-		target = <&gpio>;
+-		__overlay__ {
+-			mcp251xfd_pins: mcp251xfd_spi0_0_pins {
+-				brcm,pins = <25>;
+-				brcm,function = <BCM2835_FSEL_GPIO_IN>;
+-			};
+-		};
+-	};
+-	fragment@2 {
+-		target-path = "/clocks";
+-		__overlay__ {
+-			clk_mcp251xfd_osc: mcp251xfd-spi0-0-osc {
+-				#clock-cells = <0>;
+-				compatible = "fixed-clock";
+-				clock-frequency = <40000000>;
+-			};
+-		};
+-	};
+-	fragment@3 {
+-		target = <&spi0>;
+-		__overlay__ {
+-			status = "okay";
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			mcp251xfd@0 {
+-				compatible = "microchip,mcp251xfd";
+-				reg = <0>;
+-				pinctrl-names = "default";
+-				pinctrl-0 = <&mcp251xfd_pins>;
+-				spi-max-frequency = <20000000>;
+-				interrupt-parent = <&gpio>;
+-				interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
+-				clocks = <&clk_mcp251xfd_osc>;
+-			};
+-		};
+-	};
+-	fragment@4 {
+-		target = <&spidev1>;
+-		__overlay__ {
+-			status = "disabled";
+-		};
+-	};
+-	fragment@5 {
+-		target = <&gpio>;
+-		__overlay__ {
+-			mcp251xfd_pins_1: mcp251xfd_spi0_1_pins {
+-				brcm,pins = <24>;
+-				brcm,function = <BCM2835_FSEL_GPIO_IN>;
+-			};
+-		};
+-	};
+-	fragment@6 {
+-		target-path = "/clocks";
+-		__overlay__ {
+-			clk_mcp251xfd_osc_1: mcp251xfd-spi0-1-osc {
+-				#clock-cells = <0>;
+-				compatible = "fixed-clock";
+-				clock-frequency = <40000000>;
+-			};
+-		};
+-	};
+-	fragment@7 {
+-		target = <&spi0>;
+-		__overlay__ {
+-			status = "okay";
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			mcp251xfd@1 {
+-				compatible = "microchip,mcp251xfd";
+-				reg = <1>;
+-				pinctrl-names = "default";
+-				pinctrl-0 = <&mcp251xfd_pins_1>;
+-				spi-max-frequency = <20000000>;
+-				interrupt-parent = <&gpio>;
+-				interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
+-				clocks = <&clk_mcp251xfd_osc_1>;
+-			};
+-		};
+-	};
+-	fragment@8 {
+-		target = <&i2cbus>;
+-		__overlay__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			pcf85063@51 {
+-				compatible = "nxp,pcf85063";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-	fragment@9 {
+-		target = <&i2c_arm>;
+-		i2cbus: __overlay__ {
+-			status = "okay";
+-		};
+-	};
+-};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/seeed-can-fd-hat-v2-overlay.dts
+@@ -0,0 +1,117 @@
++// redo: ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 mcp251xfd-overlay.dts,spi0-1,interrupt=24 i2c-rtc-overlay.dts,pcf85063
++
++// Device tree overlay for https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html 
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins: mcp251xfd_spi0_0_pins {
++				brcm,pins = <25>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@2 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc: mcp251xfd-spi0-0-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@3 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@0 {
++				compatible = "microchip,mcp251xfd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc>;
++			};
++		};
++	};
++	fragment@4 {
++		target = <&spidev1>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@5 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins_1: mcp251xfd_spi0_1_pins {
++				brcm,pins = <24>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@6 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc_1: mcp251xfd-spi0-1-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@7 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@1 {
++				compatible = "microchip,mcp251xfd";
++				reg = <1>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins_1>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc_1>;
++			};
++		};
++	};
++	fragment@8 {
++		target = <&i2cbus>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pcf85063@51 {
++				compatible = "nxp,pcf85063";
++				reg = <0x51>;
++			};
++		};
++	};
++	fragment@9 {
++		target = <&i2c_arm>;
++		i2cbus: __overlay__ {
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0435-overlays-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT.patch b/target/linux/bcm27xx/patches-5.10/950-0435-overlays-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT.patch
new file mode 100644
index 0000000000..50b31c6eca
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0435-overlays-Add-overlay-for-Seeed-Studio-CAN-BUS-FD-HAT.patch
@@ -0,0 +1,192 @@
+From a58855e02a8a0a0de898efcfb0e4790076a0d640 Mon Sep 17 00:00:00 2001
+From: Marc Kleine-Budde <mkl@pengutronix.de>
+Date: Sat, 2 Jan 2021 21:38:58 +0100
+Subject: [PATCH] overlays: Add overlay for Seeed Studio CAN BUS FD HAT
+ v1 (based on mcp2517fd)
+
+This patch adds the overlay for the Seeed Studio CAN BUS FD HAT v1 with two CAN
+FD Channels (based on mcp2517fd).
+
+https://www.seeedstudio.com/2-Channel-CAN-BUS-FD-Shield-for-Raspberry-Pi-p-4072.html
+
+The overlay was generated by:
+ovmerge -c spi1-1cs-overlay.dts,cs0_pin=18,cs0_spidev=false \
+           mcp251xfd-overlay.dts,spi0-0,interrupt=25 \
+           mcp251xfd-overlay.dts,spi1-0,interrupt=24
+
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+---
+ arch/arm/boot/dts/overlays/Makefile           |   1 +
+ arch/arm/boot/dts/overlays/README             |   8 +
+ .../overlays/seeed-can-fd-hat-v1-overlay.dts  | 138 ++++++++++++++++++
+ 3 files changed, 147 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/seeed-can-fd-hat-v1-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -161,6 +161,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	sc16is752-spi1.dtbo \
+ 	sdhost.dtbo \
+ 	sdio.dtbo \
++	seeed-can-fd-hat-v1.dtbo \
+ 	seeed-can-fd-hat-v2.dtbo \
+ 	sh1106-spi.dtbo \
+ 	smi.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2504,6 +2504,14 @@ Info:   This overlay is now deprecated.
+ Load:   <Deprecated>
+ 
+ 
++Name:   seeed-can-fd-hat-v1
++Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels
++        (based on the mcp2517fd).
++        https://www.seeedstudio.com/2-Channel-CAN-BUS-FD-Shield-for-Raspberry-Pi-p-4072.html
++Load:   dtoverlay=seeed-can-fd-hat-v1
++Params: <None>
++
++
+ Name:   seeed-can-fd-hat-v2
+ Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels
+         (based on the mcp2518fd) and an RTC.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/seeed-can-fd-hat-v1-overlay.dts
+@@ -0,0 +1,138 @@
++// redo: ovmerge -c spi1-1cs-overlay.dts,cs0_pin=18,cs0_spidev=false mcp251xfd-overlay.dts,spi0-0,interrupt=25 mcp251xfd-overlay.dts,spi1-0,interrupt=24
++
++// Device tree overlay for https://www.seeedstudio.com/2-Channel-CAN-BUS-FD-Shield-for-Raspberry-Pi-p-4072.html
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/interrupt-controller/irq.h>
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++	fragment@0 {
++		target = <&gpio>;
++		__overlay__ {
++			spi1_pins: spi1_pins {
++				brcm,pins = <19 20 21>;
++				brcm,function = <3>;
++			};
++			spi1_cs_pins: spi1_cs_pins {
++				brcm,pins = <18>;
++				brcm,function = <1>;
++			};
++		};
++	};
++	fragment@1 {
++		target = <&spi1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			pinctrl-names = "default";
++			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
++			cs-gpios = <&gpio 18 1>;
++			status = "okay";
++			spidev@0 {
++				compatible = "spidev";
++				reg = <0>;
++				#address-cells = <1>;
++				#size-cells = <0>;
++				spi-max-frequency = <125000000>;
++				status = "disabled";
++			};
++		};
++	};
++	fragment@2 {
++		target = <&aux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@3 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@4 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins: mcp251xfd_spi0_0_pins {
++				brcm,pins = <25>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@5 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc: mcp251xfd-spi0-0-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@6 {
++		target = <&spi0>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@0 {
++				compatible = "microchip,mcp251xfd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc>;
++			};
++		};
++	};
++	fragment@7 {
++		target-path = "spi1/spidev@0";
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++	fragment@8 {
++		target = <&gpio>;
++		__overlay__ {
++			mcp251xfd_pins_1: mcp251xfd_spi1_0_pins {
++				brcm,pins = <24>;
++				brcm,function = <BCM2835_FSEL_GPIO_IN>;
++			};
++		};
++	};
++	fragment@9 {
++		target-path = "/clocks";
++		__overlay__ {
++			clk_mcp251xfd_osc_1: mcp251xfd-spi1-0-osc {
++				#clock-cells = <0>;
++				compatible = "fixed-clock";
++				clock-frequency = <40000000>;
++			};
++		};
++	};
++	fragment@10 {
++		target = <&spi1>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			mcp251xfd@0 {
++				compatible = "microchip,mcp251xfd";
++				reg = <0>;
++				pinctrl-names = "default";
++				pinctrl-0 = <&mcp251xfd_pins_1>;
++				spi-max-frequency = <20000000>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
++				clocks = <&clk_mcp251xfd_osc_1>;
++			};
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0436-overlays-add-wm8960-soundcard-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0436-overlays-add-wm8960-soundcard-overlay.patch
new file mode 100644
index 0000000000..47fe5e75b3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0436-overlays-add-wm8960-soundcard-overlay.patch
@@ -0,0 +1,129 @@
+From fcfad9655db52b44c8e26727be97dea78531eea5 Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Sat, 2 Jan 2021 02:34:03 +0000
+Subject: [PATCH] overlays: add wm8960-soundcard overlay
+
+add overlay for waveshare wm8960 simple-audio-card
+
+Change-type: patch
+Signed-off-by: Aaron Shaw <shawaj@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  3 +-
+ arch/arm/boot/dts/overlays/README             |  7 ++
+ .../dts/overlays/wm8960-soundcard-overlay.dts | 82 +++++++++++++++++++
+ 3 files changed, 91 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -213,7 +213,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	w1-gpio.dtbo \
+ 	w1-gpio-pullup.dtbo \
+ 	w5500.dtbo \
+-	wittypi.dtbo
++	wittypi.dtbo \
++	wm8960-soundcard.dtbo
+ 
+ targets += dtbs dtbs_install
+ targets += $(dtbo-y)
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3127,6 +3127,13 @@ Params: led_gpio                GPIO for
+                                 "default-on")
+ 
+ 
++Name:   wm8960-soundcard
++Info:   Overlay for the Waveshare wm8960 soundcard
++Load:   dtoverlay=wm8960-soundcard,<param>=<val>
++Params: alsaname                Changes the card name in ALSA
++        compatible              Changes the codec compatibility
++
++
+ Troubleshooting
+ ===============
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
+@@ -0,0 +1,82 @@
++// Definitions for Waveshare WM8960 https://github.com/waveshare/WM8960-Audio-HAT
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path="/";
++		__overlay__ {
++			wm8960_mclk: wm8960_mclk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <12288000>;
++			};
++		};
++	};
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			wm8960: wm8960 {
++				compatible = "wlf,wm8960";
++				reg = <0x1a>;
++				#sound-dai-cells = <0>;
++				AVDD-supply = <&vdd_5v0_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++			};
++		};
++	};
++
++
++	fragment@3 {
++		target = <&sound>;
++		slave_overlay: __overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "wm8960-soundcard"; 
++			status = "okay";
++
++			simple-audio-card,widgets =
++				"Microphone", "Mic Jack",
++				"Line", "Line In",
++				"Line", "Line Out",
++				"Speaker", "Speaker",
++				"Headphone", "Headphone Jack";
++			simple-audio-card,routing =
++				"Headphone Jack", "HP_L",
++				"Headphone Jack", "HP_R",
++				"Speaker", "SPK_LP",
++				"Speaker", "SPK_LN",
++				"LINPUT1", "Mic Jack",
++				"LINPUT3", "Mic Jack",
++				"RINPUT1", "Mic Jack",
++				"RINPUT2", "Mic Jack";
++
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++			dailink0_slave: simple-audio-card,codec {
++				sound-dai = <&wm8960>;
++				clocks = <&wm8960_mclk>;
++				clock-names = "mclk";
++			};
++		};
++	};
++
++	__overrides__ {
++		alsaname = <&slave_overlay>,"simple-audio-card,name";
++		compatible = <&wm8960>,"compatible";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0437-overlays-add-spi-override-to-merus-amp-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0437-overlays-add-spi-override-to-merus-amp-overlay.patch
new file mode 100644
index 0000000000..b352dbe43a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0437-overlays-add-spi-override-to-merus-amp-overlay.patch
@@ -0,0 +1,44 @@
+From e4ba525d61b49bd7355356ccc5eb76026f986c0a Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Sat, 26 Dec 2020 03:13:14 +0000
+Subject: [PATCH] overlays: add spi override to merus-amp overlay
+
+adds an override to the merus-amp overlay to turn the spi bus off
+
+Change-type: patch
+Signed-off-by: Aaron Shaw <shawaj@gmail.com>
+---
+ arch/arm/boot/dts/overlays/README                |  4 ++--
+ arch/arm/boot/dts/overlays/merus-amp-overlay.dts | 10 ++++++++++
+ 2 files changed, 12 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1914,8 +1914,8 @@ Params: speed                   Display
+ 
+ Name:   merus-amp
+ Info:   Configures the merus-amp audio card
+-Load:   dtoverlay=merus-amp
+-Params: <None>
++Load:   dtoverlay=merus-amp,<param>=<val>
++Params: spioff                  Turn SPI bus off
+ 
+ 
+ Name:   midi-uart0
+--- a/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
+@@ -57,4 +57,14 @@
+ 			status = "okay";
+ 		};
+ 	};
++
++	fragment@4 {
++		target = <&spi0>;
++		frag4: __overlay__ {
++		};
++	};
++
++	__overrides__ {
++		spioff = <&frag4>, "status=disabled";
++	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0438-dt-Add-a-camera-regulator-node-to-all-downstream-Pi-.patch b/target/linux/bcm27xx/patches-5.10/950-0438-dt-Add-a-camera-regulator-node-to-all-downstream-Pi-.patch
new file mode 100644
index 0000000000..1fc25fbea3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0438-dt-Add-a-camera-regulator-node-to-all-downstream-Pi-.patch
@@ -0,0 +1,328 @@
+From 7782ca4dcb10a244ae476126220890a0843c439e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 Jan 2021 17:28:57 +0000
+Subject: [PATCH] dt: Add a camera regulator node to all downstream Pi
+ platforms
+
+The current firmware fixup of camera sensor overlays is not
+particularly nice, and it stops you being able to load them
+dynamically.
+It's also incompatible with creating a simple DT that can be
+loaded for both CAM1 and CAM0 on a CM as they would both
+try to claim the one GPIO.
+
+Almost all sensors have a hook of some form for a regulator, so
+it's relatively straightforward to convert them all to use a
+fixed regulator with GPIO control.
+
+Add a fixed regulator node for each platform with the GPIO
+correctly configured for the camera shutdown line. (The LED line
+is ignored).
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2708-rpi-b-plus.dts          |  5 +++++
+ arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts          |  5 +++++
+ arch/arm/boot/dts/bcm2708-rpi-b.dts               |  5 +++++
+ arch/arm/boot/dts/bcm2708-rpi-cm.dts              | 15 +++++++++++++++
+ arch/arm/boot/dts/bcm2708-rpi-zero-w.dts          |  5 +++++
+ arch/arm/boot/dts/bcm2708-rpi-zero.dts            |  5 +++++
+ arch/arm/boot/dts/bcm2709-rpi-2-b.dts             |  5 +++++
+ arch/arm/boot/dts/bcm2710-rpi-2-b.dts             |  5 +++++
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts        |  5 +++++
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts             |  5 +++++
+ arch/arm/boot/dts/bcm2710-rpi-cm3.dts             | 15 +++++++++++++++
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts             |  5 +++++
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts             |  8 ++++++++
+ arch/arm/boot/dts/bcm283x-rpi-cam1-regulator.dtsi | 10 ++++++++++
+ 14 files changed, 98 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm283x-rpi-cam1-regulator.dtsi
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+@@ -5,6 +5,7 @@
+ #include "bcm283x-rpi-smsc9514.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
+@@ -111,6 +112,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
+@@ -4,6 +4,7 @@
+ #include "bcm2708-rpi.dtsi"
+ #include "bcm283x-rpi-smsc9512.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,model-b", "brcm,bcm2835";
+@@ -118,6 +119,10 @@ i2c_csi_dsi: &i2c1 {
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 27 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
+@@ -5,6 +5,7 @@
+ #include "bcm283x-rpi-smsc9512.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,model-b", "brcm,bcm2835";
+@@ -105,6 +106,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 21 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
+@@ -8,6 +8,21 @@
+ / {
+ 	compatible = "raspberrypi,compute-module", "brcm,bcm2835";
+ 	model = "Raspberry Pi Compute Module";
++
++	cam1_reg: cam1_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam1-regulator";
++		gpio = <&gpio 2 GPIO_ACTIVE_HIGH>;
++		enable-active-high;
++		status = "disabled";
++	};
++	cam0_reg: cam0_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam0-regulator";
++		gpio = <&gpio 30 GPIO_ACTIVE_HIGH>;
++		enable-active-high;
++		status = "disabled";
++	};
+ };
+ 
+ &uart0 {
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+@@ -5,6 +5,7 @@
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
+ #include "bcm2708-rpi-bt.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
+@@ -155,6 +156,10 @@
+ 	brcm,disable-headphones = <1>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 44 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+@@ -4,6 +4,7 @@
+ #include "bcm2708-rpi.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,model-zero", "brcm,bcm2835";
+@@ -109,6 +110,10 @@
+ 	brcm,disable-headphones = <1>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+@@ -5,6 +5,7 @@
+ #include "bcm283x-rpi-smsc9514.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
+@@ -111,6 +112,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
+@@ -5,6 +5,7 @@
+ #include "bcm283x-rpi-smsc9514.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_28.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,2-model-b-rev2", "brcm,bcm2837";
+@@ -111,6 +112,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -6,6 +6,7 @@
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_44.dtsi"
+ #include "bcm271x-rpi-bt.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,3-model-b-plus", "brcm,bcm2837";
+@@ -176,6 +177,10 @@
+ 	microchip,downshift-after = <2>;
+ };
+ 
++&cam1_reg {
++	gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -6,6 +6,7 @@
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_44.dtsi"
+ #include "bcm271x-rpi-bt.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
+@@ -185,6 +186,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+@@ -8,6 +8,21 @@
+ / {
+ 	compatible = "raspberrypi,3-compute-module", "brcm,bcm2837";
+ 	model = "Raspberry Pi Compute Module 3";
++
++	cam1_reg: cam1_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam1-regulator";
++		gpio = <&gpio 2 GPIO_ACTIVE_HIGH>;
++		enable-active-high;
++		status = "disabled";
++	};
++	cam0_reg: cam0_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam0-regulator";
++		gpio = <&gpio 30 GPIO_ACTIVE_HIGH>;
++		enable-active-high;
++		status = "disabled";
++	};
+ };
+ 
+ &uart0 {
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -319,6 +319,7 @@
+ #include "bcm2711-rpi.dtsi"
+ #include "bcm283x-rpi-csi1-2lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	chosen {
+@@ -585,6 +586,10 @@
+ 	pinctrl-0 = <&audio_pins>;
+ };
+ 
++&cam1_reg {
++	gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -327,6 +327,14 @@
+ 	};
+ 
+ 	/delete-node/ wifi-pwrseq;
++
++	cam0_reg: cam1_reg: cam1_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam1-reg";
++		gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
++		enable-active-high;
++		status = "disabled";
++	};
+ };
+ 
+ &mmcnr {
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm283x-rpi-cam1-regulator.dtsi
+@@ -0,0 +1,10 @@
++// SPDX-License-Identifier: GPL-2.0
++
++/ {
++	cam1_reg: cam1_reg {
++		compatible = "regulator-fixed";
++		regulator-name = "cam1-reg";
++		enable-active-high;
++		status = "disabled";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0439-dtoverlays-Update-sensor-overlays-to-use-cam1_reg-wh.patch b/target/linux/bcm27xx/patches-5.10/950-0439-dtoverlays-Update-sensor-overlays-to-use-cam1_reg-wh.patch
new file mode 100644
index 0000000000..a82dc80c71
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0439-dtoverlays-Update-sensor-overlays-to-use-cam1_reg-wh.patch
@@ -0,0 +1,243 @@
+From ca1159109b527af8450b627936c6eb732f496c14 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 6 Jan 2021 17:42:31 +0000
+Subject: [PATCH] dtoverlays: Update sensor overlays to use cam1_reg
+ where possible
+
+Update those overlays that use the regulator framework to use the
+new cam1_reg node to control the camera shutdown line, and remove
+the firmware workaround nodes.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/imx219-overlay.dts | 18 +++++---------
+ .../boot/dts/overlays/imx290_327-overlay.dtsi | 18 +++++---------
+ arch/arm/boot/dts/overlays/imx477-overlay.dts | 24 +++++++------------
+ arch/arm/boot/dts/overlays/ov7251-overlay.dts | 18 +++++---------
+ arch/arm/boot/dts/overlays/ov9281-overlay.dts | 19 ++++++---------
+ 5 files changed, 34 insertions(+), 63 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/imx219-overlay.dts
++++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
+@@ -23,7 +23,7 @@
+ 				clocks = <&imx219_clk>;
+ 				clock-names = "xclk";
+ 
+-				VANA-supply = <&imx219_vana>;	/* 2.8v */
++				VANA-supply = <&cam1_reg>;	/* 2.8v */
+ 				VDIG-supply = <&imx219_vdig>;	/* 1.8v */
+ 				VDDL-supply = <&imx219_vddl>;	/* 1.2v */
+ 
+@@ -69,14 +69,6 @@
+ 	fragment@3 {
+ 		target-path="/";
+ 		__overlay__ {
+-			imx219_vana: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "imx219_vana";
+-				regulator-min-microvolt = <2800000>;
+-				regulator-max-microvolt = <2800000>;
+-				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
+-				enable-active-high;
+-			};
+ 			imx219_vdig: fixedregulator@1 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "imx219_vdig";
+@@ -106,10 +98,12 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target-path="/__overrides__";
++		target = <&cam1_reg>;
+ 		__overlay__ {
+-			cam0-pwdn-ctrl = <&imx219_vana>,"gpio:0";
+-			cam0-pwdn      = <&imx219_vana>,"gpio:4";
++			status = "okay";
++			regulator-name = "imx219_vana";
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
+ 
+--- a/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
++++ b/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
+@@ -24,7 +24,7 @@
+ 				clock-names = "xclk";
+ 				clock-frequency = <37125000>;
+ 
+-				vdda-supply = <&imx290_vdda>;	/* 2.8v */
++				vdda-supply = <&cam1_reg>;	/* 2.8v */
+ 				vdddo-supply = <&imx290_vdddo>;	/* 1.8v */
+ 				vddd-supply = <&imx290_vddd>;	/* 1.5v */
+ 
+@@ -61,14 +61,6 @@
+ 	fragment@3 {
+ 		target-path="/";
+ 		__overlay__ {
+-			imx290_vdda: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "imx290_vdda";
+-				regulator-min-microvolt = <2800000>;
+-				regulator-max-microvolt = <2800000>;
+-				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
+-				enable-active-high;
+-			};
+ 			imx290_vdddo: fixedregulator@1 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "imx290_vdddo";
+@@ -98,10 +90,12 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target-path="/__overrides__";
++		target = <&cam1_reg>;
+ 		__overlay__ {
+-			cam0-pwdn-ctrl = <&imx290_vdda>,"gpio:0";
+-			cam0-pwdn      = <&imx290_vdda>,"gpio:4";
++			status = "okay";
++			regulator-name = "imx290_vdda";
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
+ 
+--- a/arch/arm/boot/dts/overlays/imx477-overlay.dts
++++ b/arch/arm/boot/dts/overlays/imx477-overlay.dts
+@@ -23,7 +23,7 @@
+ 				clocks = <&imx477_clk>;
+ 				clock-names = "xclk";
+ 
+-				VANA-supply = <&imx477_vana>;	/* 2.8v */
++				VANA-supply = <&cam1_reg>;	/* 2.8v */
+ 				VDIG-supply = <&imx477_vdig>;	/* 1.05v */
+ 				VDDL-supply = <&imx477_vddl>;	/* 1.8v */
+ 
+@@ -69,22 +69,13 @@
+ 	fragment@3 {
+ 		target-path="/";
+ 		__overlay__ {
+-			imx477_vana: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "imx477_vana";
+-				regulator-min-microvolt = <2800000>;
+-				regulator-max-microvolt = <2800000>;
+-				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
+-				enable-active-high;
+-				startup-delay-us = <300000>;
+-			};
+-			imx477_vdig: fixedregulator@1 {
++			imx477_vdig: fixedregulator@0 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "imx477_vdig";
+ 				regulator-min-microvolt = <1050000>;
+ 				regulator-max-microvolt = <1050000>;
+ 			};
+-			imx477_vddl: fixedregulator@2 {
++			imx477_vddl: fixedregulator@1 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "imx477_vddl";
+ 				regulator-min-microvolt = <1800000>;
+@@ -106,10 +97,13 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target-path="/__overrides__";
++		target = <&cam1_reg>;
+ 		__overlay__ {
+-			cam0-pwdn-ctrl = <&imx477_vana>,"gpio:0";
+-			cam0-pwdn      = <&imx477_vana>,"gpio:4";
++			status = "okay";
++			regulator-name = "imx477_vana";
++			startup-delay-us = <300000>;
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
+ 
+--- a/arch/arm/boot/dts/overlays/ov7251-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ov7251-overlay.dts
+@@ -25,11 +25,9 @@
+ 				clock-frequency = <24000000>;
+ 
+ 				vdddo-supply = <&ov7251_dovdd>;
+-				vdda-supply = <&ov7251_avdd>;
++				vdda-supply = <&cam1_reg>;
+ 				vddd-supply = <&ov7251_dvdd>;
+ 
+-				enable-gpios = <&gpio 41 GPIO_ACTIVE_HIGH>;
+-
+ 				port {
+ 					ov7251_0: endpoint {
+ 						remote-endpoint = <&csi1_ep>;
+@@ -68,12 +66,6 @@
+ 	fragment@3 {
+ 		target-path="/";
+ 		__overlay__ {
+-			ov7251_avdd: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "ov7251_avdd";
+-				regulator-min-microvolt = <2800000>;
+-				regulator-max-microvolt = <2800000>;
+-			};
+ 			ov7251_dovdd: fixedregulator@1 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "ov7251_dovdd";
+@@ -102,10 +94,12 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target-path="/__overrides__";
++		target = <&cam1_reg>;
+ 		__overlay__ {
+-			cam0-pwdn-ctrl = <&ov7251>,"enable-gpios:0";
+-			cam0-pwdn      = <&ov7251>,"enable-gpios:4";
++			status = "okay";
++			regulator-name = "ov7251_avdd";
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/ov9281-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ov9281-overlay.dts
+@@ -23,7 +23,7 @@
+ 				clocks = <&ov9281_clk>;
+ 				clock-names = "xvclk";
+ 
+-				avdd-supply = <&ov9281_avdd>;
++				avdd-supply = <&cam1_reg>;
+ 				dovdd-supply = <&ov9281_dovdd>;
+ 				dvdd-supply = <&ov9281_dvdd>;
+ 
+@@ -66,14 +66,6 @@
+ 	fragment@3 {
+ 		target-path="/";
+ 		__overlay__ {
+-			ov9281_avdd: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "ov9281_avdd";
+-				regulator-min-microvolt = <2800000>;
+-				regulator-max-microvolt = <2800000>;
+-				gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
+-				enable-active-high;
+-			};
+ 			ov9281_dovdd: fixedregulator@1 {
+ 				compatible = "regulator-fixed";
+ 				regulator-name = "ov9281_dovdd";
+@@ -102,10 +94,13 @@
+ 	};
+ 
+ 	fragment@5 {
+-		target-path="/__overrides__";
++		target = <&cam1_reg>;
+ 		__overlay__ {
+-			cam0-pwdn-ctrl = <&ov9281_avdd>,"gpio:0";
+-			cam0-pwdn      = <&ov9281_avdd>,"gpio:4";
++			status = "okay";
++			regulator-name = "ov9281_avdd";
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
++
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0440-overlays-seeed-can-fd-hat-clarify-how-to-identify-HA.patch b/target/linux/bcm27xx/patches-5.10/950-0440-overlays-seeed-can-fd-hat-clarify-how-to-identify-HA.patch
new file mode 100644
index 0000000000..1f591c51ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0440-overlays-seeed-can-fd-hat-clarify-how-to-identify-HA.patch
@@ -0,0 +1,45 @@
+From d26e1eb0a7c538c457138245f5c5ad0c8312dc9f Mon Sep 17 00:00:00 2001
+From: Marc Kleine-Budde <mkl@pengutronix.de>
+Date: Sat, 9 Jan 2021 17:03:32 +0100
+Subject: [PATCH] overlays: seeed-can-fd-hat: clarify how to identify
+ HAT version
+
+It turns out the used CAN SPI chip is not a good way to identify the version of
+the CAN HAT.
+
+There are two different board layouts of the Seeed Studio CAN BUS FD HAT. The
+v1 board doesn't have a battery holder, while the v2 board has. Update the
+overlay README accordinly.
+
+Link: https://github.com/Seeed-Studio/seeed-linux-dtoverlays/issues/13
+Cc: Patrick Menschel <menschel.p@posteo.de>
+Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
+---
+ arch/arm/boot/dts/overlays/README | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2505,16 +2505,18 @@ Load:   <Deprecated>
+ 
+ 
+ Name:   seeed-can-fd-hat-v1
+-Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels
+-        (based on the mcp2517fd).
++Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD
++        channels without RTC. Use this overlay if your HAT has no
++        battery holder.
+         https://www.seeedstudio.com/2-Channel-CAN-BUS-FD-Shield-for-Raspberry-Pi-p-4072.html
+ Load:   dtoverlay=seeed-can-fd-hat-v1
+ Params: <None>
+ 
+ 
+ Name:   seeed-can-fd-hat-v2
+-Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD channels
+-        (based on the mcp2518fd) and an RTC.
++Info:   Overlay for Seeed Studio CAN BUS FD HAT with two CAN FD
++        channels and an RTC. Use this overlay if your HAT has a
++        battery holder.
+         https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html
+ Load:   dtoverlay=seeed-can-fd-hat-v2
+ Params: <None>
diff --git a/target/linux/bcm27xx/patches-5.10/950-0441-SQUASH-Revert-overlays-Make-the-i2c-gpio-overlay-saf.patch b/target/linux/bcm27xx/patches-5.10/950-0441-SQUASH-Revert-overlays-Make-the-i2c-gpio-overlay-saf.patch
new file mode 100644
index 0000000000..b95b8c0a5f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0441-SQUASH-Revert-overlays-Make-the-i2c-gpio-overlay-saf.patch
@@ -0,0 +1,26 @@
+From d30018da40f9a6ce037a2acf2ea46d0ad3a08e6a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 13 Jan 2021 21:25:38 +0000
+Subject: [PATCH] SQUASH: Revert: "overlays: Make the i2c-gpio overlay
+ safe again"
+
+This revert and its neighbour are opposites. When squashing, delete
+the original commits as well.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+@@ -11,6 +11,9 @@
+ 		target-path = "/";
+ 
+ 		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
+ 			i2c_gpio: i2c@0 {
+ 				reg = <0xffffffff>;
+ 				compatible = "i2c-gpio";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0442-SQUASH-Revert-overlays-Fix-dtc-warnings-in-i2c-gpio.patch b/target/linux/bcm27xx/patches-5.10/950-0442-SQUASH-Revert-overlays-Fix-dtc-warnings-in-i2c-gpio.patch
new file mode 100644
index 0000000000..f70a56d950
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0442-SQUASH-Revert-overlays-Fix-dtc-warnings-in-i2c-gpio.patch
@@ -0,0 +1,28 @@
+From 283e74412227e4d3baab7a2dc48d90d0dd044bbf Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 13 Jan 2021 21:27:56 +0000
+Subject: [PATCH] SQUASH: Revert "overlays: Fix dtc warnings in
+ i2c-gpio"
+
+This reverts commit 1c15edc0dca002c8536e9f1f5e1ec43017815018.
+
+This revert and its neighbour are opposites. When squashing, delete
+the original commits as well.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 3 ---
+ 1 file changed, 3 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+@@ -11,9 +11,6 @@
+ 		target-path = "/";
+ 
+ 		__overlay__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+ 			i2c_gpio: i2c@0 {
+ 				reg = <0xffffffff>;
+ 				compatible = "i2c-gpio";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0443-uapi-bcm2835-isp-Add-colour-denoise-configuration.patch b/target/linux/bcm27xx/patches-5.10/950-0443-uapi-bcm2835-isp-Add-colour-denoise-configuration.patch
new file mode 100644
index 0000000000..854b0ba147
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0443-uapi-bcm2835-isp-Add-colour-denoise-configuration.patch
@@ -0,0 +1,56 @@
+From aed98a04e57de36ad35d4fd09c5ce0c9cdd580dc Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 14 Jan 2021 09:18:42 +0000
+Subject: [PATCH] uapi: bcm2835-isp: Add colour denoise configuration
+
+Add a configuration structure for colour denoise to the bcm2835_isp
+driver.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ include/uapi/linux/bcm2835-isp.h | 27 +++++++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+--- a/include/uapi/linux/bcm2835-isp.h
++++ b/include/uapi/linux/bcm2835-isp.h
+@@ -31,6 +31,8 @@
+ 				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0007)
+ #define V4L2_CID_USER_BCM2835_ISP_DPC		\
+ 				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0008)
++#define V4L2_CID_USER_BCM2835_ISP_CDN \
++				(V4L2_CID_USER_BCM2835_ISP_BASE + 0x0009)
+ 
+ /*
+  * All structs below are directly mapped onto the equivalent structs in
+@@ -176,6 +178,31 @@ struct bcm2835_isp_gamma {
+ };
+ 
+ /**
++ * enum bcm2835_isp_cdn_mode - Mode of operation for colour denoise.
++ *
++ * @CDN_MODE_FAST:		Fast (but lower quality) colour denoise
++ *				algorithm, typically used for video recording.
++ * @CDN_HIGH_QUALITY:		High quality (but slower) colour denoise
++ *				algorithm, typically used for stills capture.
++ */
++enum bcm2835_isp_cdn_mode {
++	CDN_MODE_FAST = 0,
++	CDN_MODE_HIGH_QUALITY = 1,
++};
++
++/**
++ * struct bcm2835_isp_cdn - Colour denoise parameters set with the
++ *			    V4L2_CID_USER_BCM2835_ISP_CDN ctrl.
++ *
++ * @enabled:	Enable colour denoise.
++ * @mode:	Colour denoise operating mode (see enum &bcm2835_isp_cdn_mode)
++ */
++struct bcm2835_isp_cdn {
++	__u32 enabled;
++	__u32 mode;
++};
++
++/**
+  * struct bcm2835_isp_denoise - Denoise parameters set with the
+  *				V4L2_CID_USER_BCM2835_ISP_DENOISE ctrl.
+  *
diff --git a/target/linux/bcm27xx/patches-5.10/950-0444-staging-vc04_services-ISP-Add-colour-denoise-control.patch b/target/linux/bcm27xx/patches-5.10/950-0444-staging-vc04_services-ISP-Add-colour-denoise-control.patch
new file mode 100644
index 0000000000..8f7a0a303a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0444-staging-vc04_services-ISP-Add-colour-denoise-control.patch
@@ -0,0 +1,75 @@
+From 42a7effa20225e5a3b70d5d10c13146b5bab6af2 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 14 Jan 2021 09:20:52 +0000
+Subject: [PATCH] staging: vc04_services: ISP: Add colour denoise
+ control
+
+Add colour denoise control to the bcm2835 driver through a new v4l2
+control: V4L2_CID_USER_BCM2835_ISP_CDN.
+
+Add the accompanying MMAL configuration structure definitions as well.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h   |  5 +++++
+ .../vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c    |  5 +++++
+ .../vc04_services/vchiq-mmal/mmal-parameters.h      | 13 +++++++++++++
+ 3 files changed, 23 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-ctrls.h
+@@ -57,6 +57,11 @@ static const struct bcm2835_isp_custom_c
+ 		.size	= sizeof(struct bcm2835_isp_denoise),
+ 		.flags  = 0
+ 	}, {
++		.name	= "Colour Denoise",
++		.id	= V4L2_CID_USER_BCM2835_ISP_CDN,
++		.size	= sizeof(struct bcm2835_isp_cdn),
++		.flags  = 0
++	}, {
+ 		.name	= "Defective Pixel Correction",
+ 		.id	= V4L2_CID_USER_BCM2835_ISP_DPC,
+ 		.size	= sizeof(struct bcm2835_isp_dpc),
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -764,6 +764,11 @@ static int bcm2835_isp_s_ctrl(struct v4l
+ 				    ctrl->p_new.p_u8,
+ 				    sizeof(struct bcm2835_isp_denoise));
+ 		break;
++	case V4L2_CID_USER_BCM2835_ISP_CDN:
++		ret = set_isp_param(node, MMAL_PARAMETER_CDN,
++				    ctrl->p_new.p_u8,
++				    sizeof(struct bcm2835_isp_cdn));
++		break;
+ 	case V4L2_CID_USER_BCM2835_ISP_SHARPEN:
+ 		ret = set_isp_param(node, MMAL_PARAMETER_SHARPEN,
+ 				    ctrl->p_new.p_u8,
+--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
++++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
+@@ -277,6 +277,8 @@ enum mmal_parameter_camera_type {
+ 	MMAL_PARAMETER_DPC,
+ 		/**< Tales a @ref MMAP_PARAMETER_GAMMA_T */
+ 	MMAL_PARAMETER_GAMMA,
++		/**< Takes a @ref MMAL_PARAMETER_CDN_T */
++	MMAL_PARAMETER_CDN,
+ };
+ 
+ struct mmal_parameter_rational {
+@@ -913,6 +915,17 @@ struct mmal_parameter_gamma {
+ 	u16 y[MMAL_NUM_GAMMA_PTS];
+ };
+ 
++enum mmal_parameter_cdn_mode {
++	MMAL_PARAM_CDN_FAST = 0,
++	MMAL_PARAM_CDN_HIGH_QUALITY = 1,
++	MMAL_PARAM_CDN_DUMMY  = 0x7FFFFFFF
++};
++
++struct mmal_parameter_colour_denoise {
++	u32 enabled;
++	enum mmal_parameter_cdn_mode mode;
++};
++
+ struct mmal_parameter_denoise {
+ 	u32 enabled;
+ 	u32 constant;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0445-dt-bindings-nvmem-Add-bindings-for-rmem-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0445-dt-bindings-nvmem-Add-bindings-for-rmem-driver.patch
new file mode 100644
index 0000000000..6c3c3e31a9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0445-dt-bindings-nvmem-Add-bindings-for-rmem-driver.patch
@@ -0,0 +1,75 @@
+From 15cfca011ac1e08e073628b36f40d64f03fcf2b2 Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Thu, 10 Dec 2020 19:22:45 +0100
+Subject: [PATCH] dt-bindings: nvmem: Add bindings for rmem driver
+
+Firmware/co-processors might use reserved memory areas in order to pass
+data stemming from an nvmem device otherwise non accessible to Linux.
+For example an EEPROM memory only physically accessible to firmware, or
+data only accessible early at boot time.
+
+Introduce the dt-bindings to nvmem's rmem.
+
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+
+---
+
+Changes since v1:
+ - Update schema to new driver design
+---
+ .../devicetree/bindings/nvmem/rmem.yaml       | 49 +++++++++++++++++++
+ 1 file changed, 49 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/nvmem/rmem.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/nvmem/rmem.yaml
+@@ -0,0 +1,49 @@
++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/nvmem/rmem.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Reserved Memory Based nvmem Device
++
++maintainers:
++  - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
++
++allOf:
++  - $ref: "nvmem.yaml#"
++
++properties:
++  compatible:
++    items:
++      - enum:
++        - raspberrypi,bootloader-config
++      - const: nvmem-rmem
++
++  no-map:
++    $ref: /schemas/types.yaml#/definitions/flag
++    description:
++      Avoid creating a virtual mapping of the region as part of the OS'
++      standard mapping of system memory.
++
++required:
++  - compatible
++  - no-map
++
++unevaluatedProperties: false
++
++examples:
++  - |
++        reserved-memory {
++                #address-cells = <1>;
++                #size-cells = <1>;
++
++                blconfig: nvram@10000000 {
++                        compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
++                        #address-cells = <1>;
++                        #size-cells = <1>;
++                        reg = <0x10000000 0x1000>;
++                        no-map;
++                };
++        };
++
++...
diff --git a/target/linux/bcm27xx/patches-5.10/950-0446-nvmem-Add-driver-to-expose-reserved-memory-as-nvmem.patch b/target/linux/bcm27xx/patches-5.10/950-0446-nvmem-Add-driver-to-expose-reserved-memory-as-nvmem.patch
new file mode 100644
index 0000000000..79fc84f5ac
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0446-nvmem-Add-driver-to-expose-reserved-memory-as-nvmem.patch
@@ -0,0 +1,163 @@
+From 639949895123bb937b374ccacae0675ff4ab6e55 Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Thu, 10 Dec 2020 12:13:49 +0100
+Subject: [PATCH] nvmem: Add driver to expose reserved memory as nvmem
+
+Firmware/co-processors might use reserved memory areas in order to pass
+data stemming from an nvmem device otherwise non accessible to Linux.
+For example an EEPROM memory only physically accessible to firmware, or
+data only accessible early at boot time.
+
+In order to expose this data to other drivers and user-space, the driver
+models the reserved memory area as an nvmem device.
+
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+
+---
+
+Changes since v1:
+ - Remove reserved memory phandle indirection by directly creating a
+   platform device from the reserved memory DT node
+ - Only map memory upon reading it to avoid corruption
+ - Small cosmetic cleanups
+---
+ drivers/nvmem/Kconfig  |  8 ++++
+ drivers/nvmem/Makefile |  2 +
+ drivers/nvmem/rmem.c   | 97 ++++++++++++++++++++++++++++++++++++++++++
+ drivers/of/platform.c  |  1 +
+ 4 files changed, 108 insertions(+)
+ create mode 100644 drivers/nvmem/rmem.c
+
+--- a/drivers/nvmem/Kconfig
++++ b/drivers/nvmem/Kconfig
+@@ -270,4 +270,12 @@ config SPRD_EFUSE
+ 	  This driver can also be built as a module. If so, the module
+ 	  will be called nvmem-sprd-efuse.
+ 
++config NVMEM_RMEM
++	tristate "Reserved Memory Based Driver Support"
++	help
++	  This drivers maps reserved memory into an nvmem device. It might be
++	  useful to expose information left by firmware in memory.
++
++	  This driver can also be built as a module. If so, the module
++	  will be called nvmem-rmem.
+ endif
+--- a/drivers/nvmem/Makefile
++++ b/drivers/nvmem/Makefile
+@@ -55,3 +55,5 @@ obj-$(CONFIG_NVMEM_ZYNQMP)	+= nvmem_zynq
+ nvmem_zynqmp_nvmem-y		:= zynqmp_nvmem.o
+ obj-$(CONFIG_SPRD_EFUSE)	+= nvmem_sprd_efuse.o
+ nvmem_sprd_efuse-y		:= sprd-efuse.o
++obj-$(CONFIG_NVMEM_RMEM) 	+= nvmem-rmem.o
++nvmem-rmem-y			:= rmem.o
+--- /dev/null
++++ b/drivers/nvmem/rmem.c
+@@ -0,0 +1,97 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ * Copyright (C) 2020 Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
++ */
++
++#include <linux/io.h>
++#include <linux/module.h>
++#include <linux/nvmem-provider.h>
++#include <linux/of_reserved_mem.h>
++#include <linux/platform_device.h>
++
++struct rmem {
++	struct device *dev;
++	struct nvmem_device *nvmem;
++	struct reserved_mem *mem;
++
++	phys_addr_t size;
++};
++
++static int rmem_read(void *context, unsigned int offset,
++		     void *val, size_t bytes)
++{
++	struct rmem *priv = context;
++	size_t available = priv->mem->size;
++	loff_t off = offset;
++	void *addr;
++	int count;
++
++	/*
++	 * Only map the reserved memory at this point to avoid potential rogue
++	 * kernel threads inadvertently modifying it. Based on the current
++	 * uses-cases for this driver, the performance hit isn't a concern.
++	 * Nor is likely to be, given the nature of the subsystem. Most nvmem
++	 * devices operate over slow buses to begin with.
++	 *
++	 * An alternative would be setting the memory as RO, set_memory_ro(),
++	 * but as of Dec 2020 this isn't possible on arm64.
++	 */
++	addr = memremap(priv->mem->base, available, MEMREMAP_WB);
++	if (IS_ERR(addr)) {
++		dev_err(priv->dev, "Failed to remap memory region\n");
++		return PTR_ERR(addr);
++	}
++
++	count = memory_read_from_buffer(val, bytes, &off, addr, available);
++
++	memunmap(addr);
++
++	return count;
++}
++
++static int rmem_probe(struct platform_device *pdev)
++{
++	struct nvmem_config config = { };
++	struct device *dev = &pdev->dev;
++	struct reserved_mem *mem;
++	struct rmem *priv;
++
++	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
++	if (!priv)
++		return -ENOMEM;
++	priv->dev = dev;
++
++	mem = of_reserved_mem_lookup(dev->of_node);
++	if (!mem) {
++		dev_err(dev, "Failed to lookup reserved memory\n");
++		return -EINVAL;
++	}
++	priv->mem = mem;
++
++	config.dev = dev;
++	config.priv = priv;
++	config.name = "rmem";
++	config.size = mem->size;
++	config.reg_read = rmem_read;
++
++	return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &config));
++}
++
++static const struct of_device_id rmem_match[] = {
++	{ .compatible = "nvmem-rmem", },
++	{ /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, rmem_match);
++
++static struct platform_driver rmem_driver = {
++	.probe = rmem_probe,
++	.driver = {
++		.name = "rmem",
++		.of_match_table = rmem_match,
++	},
++};
++module_platform_driver(rmem_driver);
++
++MODULE_AUTHOR("Nicolas Saenz Julienne <nsaenzjulienne@suse.de>");
++MODULE_DESCRIPTION("Reserved Memory Based nvmem Driver");
++MODULE_LICENSE("GPL");
+--- a/drivers/of/platform.c
++++ b/drivers/of/platform.c
+@@ -511,6 +511,7 @@ static const struct of_device_id reserve
+ 	{ .compatible = "qcom,rmtfs-mem" },
+ 	{ .compatible = "qcom,cmd-db" },
+ 	{ .compatible = "ramoops" },
++	{ .compatible = "nvmem-rmem" },
+ 	{}
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0447-ARM-dts-bcm2711-Add-reserved-memory-template-to-hold.patch b/target/linux/bcm27xx/patches-5.10/950-0447-ARM-dts-bcm2711-Add-reserved-memory-template-to-hold.patch
new file mode 100644
index 0000000000..e671d4584a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0447-ARM-dts-bcm2711-Add-reserved-memory-template-to-hold.patch
@@ -0,0 +1,60 @@
+From b3a070cf6fe04129d2c174e45c14b98a759e0402 Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Fri, 11 Dec 2020 12:22:01 +0100
+Subject: [PATCH] ARM: dts: bcm2711: Add reserved memory template to
+ hold firmware configuration
+
+RPi4's co-processor will copy the board's bootloader[1] configuration
+into memory for the OS to consume. Specifically, for the bootloader
+configuration and upgrade user-space routines to query it through
+nvmem's sysfs interface.
+
+Introduce a reserved-memory area template for the co-processor to edit
+before booting the system so as for Linux not to overwrite that memory
+and to expose it as an nvmem device.
+
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+
+[1] https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711_bootloader_config.md
+---
+
+Changes since v1:
+ - Introduce compatible string
+ - Change alias name to something more explicit
+---
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 17 +++++++++++++++++
+ 1 file changed, 17 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -24,6 +24,7 @@
+ 		emmc2bus = &emmc2bus;
+ 		ethernet0 = &genet;
+ 		pcie0 = &pcie0;
++		blconfig = &blconfig;
+ 	};
+ 
+ 	leds {
+@@ -215,6 +216,22 @@
+ 	status = "okay";
+ };
+ 
++&rmem {
++	/*
++	 * RPi4's co-processor will copy the board's bootloader configuration
++	 * into memory for the OS to consume. It'll also update this node with
++	 * its placement information.
++	 */
++	blconfig: nvram@0 {
++		compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		reg = <0x0 0x0 0x0>;
++		no-map;
++		status = "disabled";
++	};
++};
++
+ /* SDHCI is used to control the SDIO for wireless */
+ &sdhci {
+ 	#address-cells = <1>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0448-spi-bcm2835-Workaround-fix-for-zero-length-transfers.patch b/target/linux/bcm27xx/patches-5.10/950-0448-spi-bcm2835-Workaround-fix-for-zero-length-transfers.patch
new file mode 100644
index 0000000000..2b9d30ff18
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0448-spi-bcm2835-Workaround-fix-for-zero-length-transfers.patch
@@ -0,0 +1,50 @@
+From 54545710d40fd00e3c727603a446500b1b9b3d88 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 28 Jan 2021 11:30:04 +0000
+Subject: [PATCH] spi: bcm2835: Workaround/fix for zero-length
+ transfers
+
+A relatively recent commit ([1]) contained optimisation for the PIO
+SPI FIFO-filling functions. The commit message includes the phrase
+"[t]he blind and counted loops are always called with nonzero count".
+This is technically true, but it is still possible for count to become
+zero before the loop is entered - if tfr->len is zero. Moving the loop
+exit condition to the end of the loop saves a few cycles, but results
+in a near-infinite loop should the revised count be zero on entry.
+
+Strangely, zero-lengthed transfers aren't filtered by the SPI framework
+and, even more strangely, the Python3 spidev library is triggering them
+for no obvious reason.
+
+Avoid the problem completely by bailing out of the main transfer
+function early if trf->len is zero, although there may be a case for
+moving the mitigation into the framework.
+
+See: https://github.com/raspberrypi/linux/issues/4100
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+
+[1] 26751de25d25 ("spi: bcm2835: Micro-optimise FIFO loops")
+---
+ drivers/spi/spi-bcm2835.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -1092,6 +1092,16 @@ static int bcm2835_spi_transfer_one(stru
+ 	unsigned long hz_per_byte, byte_limit;
+ 	u32 cs = bs->prepare_cs[spi->chip_select];
+ 
++	if (unlikely(!tfr->len)) {
++		static int warned;
++
++		if (!warned)
++			dev_warn(&spi->dev,
++				 "zero-length SPI transfer ignored\n");
++		warned = 1;
++		return 0;
++	}
++
+ 	/* set clock */
+ 	spi_hz = tfr->speed_hz;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0449-kbuild-Silence-unavoidable-dtc-overlay-warnings.patch b/target/linux/bcm27xx/patches-5.10/950-0449-kbuild-Silence-unavoidable-dtc-overlay-warnings.patch
new file mode 100644
index 0000000000..f3138154ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0449-kbuild-Silence-unavoidable-dtc-overlay-warnings.patch
@@ -0,0 +1,31 @@
+From 452e2d1248f7782e769cdbdd01a0f479715d7bfb Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 29 Jan 2021 10:34:11 +0000
+Subject: [PATCH] kbuild: Silence unavoidable dtc overlay warnings
+
+Much effort has been put into finding ways to avoid warnings from dtc
+about overlays, usually to do with the presence of #address-cells and
+size-cells, but not exclusively so. Since the issues being warned about
+are harmless, suppress the warnings to declutter the build output and
+to avoid alarming users.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ scripts/Makefile.lib | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -348,6 +348,12 @@ cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ;
+ 	$(DTC) -@ -H epapr -O dtb -o $@ -b 0 \
+ 		-i $(dir $<) $(DTC_FLAGS) \
+ 		-Wno-interrupts_property \
++		-Wno-label_is_string \
++		-Wno-reg_format \
++		-Wno-pci_device_bus_num \
++		-Wno-i2c_bus_reg \
++		-Wno-spi_bus_reg \
++		-Wno-avoid_default_addr_size \
+ 		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
+ 	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0450-Adds-the-DT-overlays-to-support-Hifiberry-AMP100.patch b/target/linux/bcm27xx/patches-5.10/950-0450-Adds-the-DT-overlays-to-support-Hifiberry-AMP100.patch
new file mode 100644
index 0000000000..1ddf1c9456
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0450-Adds-the-DT-overlays-to-support-Hifiberry-AMP100.patch
@@ -0,0 +1,132 @@
+From bcaa1b9dcc731ff3d7a8d36769062e9571d0738c Mon Sep 17 00:00:00 2001
+From: Joerg Schambacher <joerg@i2audio.com>
+Date: Fri, 29 Jan 2021 08:26:44 +0100
+Subject: [PATCH] Adds the DT-overlays to support Hifiberry AMP100
+
+Adds new DT-overlay to control AMP100.
+
+Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 30 ++++++++-
+ .../dts/overlays/hifiberry-amp100-overlay.dts | 64 +++++++++++++++++++
+ 3 files changed, 94 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm/boot/dts/overlays/hifiberry-amp100-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -61,6 +61,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	hd44780-lcd.dtbo \
+ 	hdmi-backlight-hwhack-gpio.dtbo \
+ 	hifiberry-amp.dtbo \
++	hifiberry-amp100.dtbo \
+ 	hifiberry-dac.dtbo \
+ 	hifiberry-dacplus.dtbo \
+ 	hifiberry-dacplusadc.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1059,8 +1059,36 @@ Load:   dtoverlay=hifiberry-amp
+ Params: <None>
+ 
+ 
++Name:   hifiberry-amp100
++Info:   Configures the HifiBerry AMP100 audio card
++Load:   dtoverlay=hifiberry-amp100,<param>=<val>
++Params: 24db_digital_gain       Allow gain to be applied via the PCM512x codec
++                                Digital volume control. Enable with
++                                "dtoverlay=hifiberry-amp100,24db_digital_gain"
++                                (The default behaviour is that the Digital
++                                volume control is limited to a maximum of
++                                0dB. ie. it can attenuate but not provide
++                                gain. For most users, this will be desired
++                                as it will prevent clipping. By appending
++                                the 24dB_digital_gain parameter, the Digital
++                                volume control will allow up to 24dB of
++                                gain. If this parameter is enabled, it is the
++                                responsibility of the user to ensure that
++                                the Digital volume control is set to a value
++                                that does not result in clipping/distortion!)
++        slave                   Force DAC+ Pro into slave mode, using Pi as
++                                master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
++        auto_mute               If set to 'true' the amplifier is automatically
++                                muted when the DAC is not playing.
++        mute_ext_ctl            The amplifier's HW mute control is enabled
++                                in ALSA mixer and set to <val>.
++                                Will be overwritten by ALSA user settings.
++
++
+ Name:   hifiberry-dac
+-Info:   Configures the HifiBerry DAC audio card
++Info:   Configures the HifiBerry DAC audio cards
+ Load:   dtoverlay=hifiberry-dac
+ Params: <None>
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/hifiberry-amp100-overlay.dts
+@@ -0,0 +1,64 @@
++// Definitions for HiFiBerry AMP100
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			dacpro_osc: dacpro_osc {
++				compatible = "hifiberry,dacpro-clk";
++				#clock-cells = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pcm5122@4d {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5122";
++				reg = <0x4d>;
++				clocks = <&dacpro_osc>;
++				AVDD-supply = <&vdd_3v3_reg>;
++				DVDD-supply = <&vdd_3v3_reg>;
++				CPVDD-supply = <&vdd_3v3_reg>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&sound>;
++		hifiberry_dacplus: __overlay__ {
++			compatible = "hifiberry,hifiberry-dacplus";
++			i2s-controller = <&i2s>;
++			status = "okay";
++			mute-gpio = <&gpio 4 0>;
++			reset-gpio = <&gpio 17 0x11>;
++		};
++	};
++
++	__overrides__ {
++		24db_digital_gain =
++			<&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
++		slave = <&hifiberry_dacplus>,"hifiberry-dacplus,slave?";
++		leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
++		mute_ext_ctl = <&hifiberry_dacplus>,"hifiberry-dacplus,mute_ext_ctl:0";
++		auto_mute = <&hifiberry_dacplus>,"hifiberry-dacplus,auto_mute?";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0451-Enhances-the-Hifiberry-DAC-driver-for-Hifiberry-AMP1.patch b/target/linux/bcm27xx/patches-5.10/950-0451-Enhances-the-Hifiberry-DAC-driver-for-Hifiberry-AMP1.patch
new file mode 100644
index 0000000000..9d26dab979
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0451-Enhances-the-Hifiberry-DAC-driver-for-Hifiberry-AMP1.patch
@@ -0,0 +1,238 @@
+From 1aebaa90d468875109f0bf37cd89c7cfd9ac69bf Mon Sep 17 00:00:00 2001
+From: Joerg Schambacher <joerg@i2audio.com>
+Date: Fri, 29 Jan 2021 16:16:39 +0100
+Subject: [PATCH] Enhances the Hifiberry DAC+ driver for Hifiberry
+ AMP100 support
+
+Adds the necessary GPIO handling and ALSA mixer extensions.
+Also fixes a problem with the PLL/CLK control when switching sample rates.
+Thanks to Clive Messer for the support!
+
+Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>
+---
+ sound/soc/bcm/hifiberry_dacplus.c | 124 ++++++++++++++++++++++++++----
+ 1 file changed, 111 insertions(+), 13 deletions(-)
+
+--- a/sound/soc/bcm/hifiberry_dacplus.c
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -1,10 +1,10 @@
+ /*
+- * ASoC Driver for HiFiBerry DAC+ / DAC Pro
++ * ASoC Driver for HiFiBerry DAC+ / DAC Pro / AMP100
+  *
+  * Author:	Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com>
+  *		Copyright 2014-2015
+  *		based on code by Florian Meier <florian.meier@koalo.de>
+- *		Headphone added by Joerg Schambacher, joerg@i2audio.com
++ *		Headphone/AMP100 Joerg Schambacher <joerg@hifiberry.com>
+  *
+  * This program is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU General Public License
+@@ -17,6 +17,8 @@
+  */
+ 
+ #include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <../drivers/gpio/gpiolib.h>
+ #include <linux/platform_device.h>
+ #include <linux/kernel.h>
+ #include <linux/clk.h>
+@@ -53,6 +55,47 @@ static bool slave;
+ static bool snd_rpi_hifiberry_is_dacpro;
+ static bool digital_gain_0db_limit = true;
+ static bool leds_off;
++static bool auto_mute;
++static int mute_ext_ctl;
++static int mute_ext;
++static struct gpio_desc *snd_mute_gpio;
++static struct gpio_desc *snd_reset_gpio;
++static struct snd_soc_card snd_rpi_hifiberry_dacplus;
++
++static int snd_rpi_hifiberry_dacplus_mute_set(int mute)
++{
++	gpiod_set_value_cansleep(snd_mute_gpio, mute);
++	return 1;
++}
++
++static int snd_rpi_hifiberry_dacplus_mute_get(struct snd_kcontrol *kcontrol,
++				struct snd_ctl_elem_value *ucontrol)
++{
++	ucontrol->value.integer.value[0] = mute_ext;
++
++	return 0;
++}
++
++static int snd_rpi_hifiberry_dacplus_mute_put(struct snd_kcontrol *kcontrol,
++				struct snd_ctl_elem_value *ucontrol)
++{
++	if (mute_ext == ucontrol->value.integer.value[0])
++		return 0;
++
++	mute_ext = ucontrol->value.integer.value[0];
++
++	return snd_rpi_hifiberry_dacplus_mute_set(mute_ext);
++}
++
++static const char * const mute_text[] = {"Play", "Mute"};
++static const struct soc_enum hb_dacplus_opt_mute_enum =
++	SOC_ENUM_SINGLE_EXT(2, mute_text);
++
++static const struct snd_kcontrol_new hb_dacplus_opt_mute_controls[] = {
++	SOC_ENUM_EXT("Mute(ext)", hb_dacplus_opt_mute_enum,
++			      snd_rpi_hifiberry_dacplus_mute_get,
++			      snd_rpi_hifiberry_dacplus_mute_put),
++};
+ 
+ static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_component *component,
+ 	int clk_id)
+@@ -68,6 +111,7 @@ static void snd_rpi_hifiberry_dacplus_se
+ 		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+ 		break;
+ 	}
++	usleep_range(2000, 2100);
+ }
+ 
+ static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_component *component)
+@@ -85,13 +129,6 @@ static bool snd_rpi_hifiberry_dacplus_is
+ 	return (!(sck & 0x40));
+ }
+ 
+-static bool snd_rpi_hifiberry_dacplus_is_sclk_sleep(
+-	struct snd_soc_component *component)
+-{
+-	msleep(2);
+-	return snd_rpi_hifiberry_dacplus_is_sclk(component);
+-}
+-
+ static bool snd_rpi_hifiberry_dacplus_is_pro_card(struct snd_soc_component *component)
+ {
+ 	bool isClk44EN, isClk48En, isNoClk;
+@@ -99,13 +136,13 @@ static bool snd_rpi_hifiberry_dacplus_is
+ 	snd_rpi_hifiberry_dacplus_clk_gpio(component);
+ 
+ 	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
+-	isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++	isClk44EN = snd_rpi_hifiberry_dacplus_is_sclk(component);
+ 
+ 	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
+-	isNoClk = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++	isNoClk = snd_rpi_hifiberry_dacplus_is_sclk(component);
+ 
+ 	snd_rpi_hifiberry_dacplus_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
+-	isClk48En = snd_rpi_hifiberry_dacplus_is_sclk_sleep(component);
++	isClk48En = snd_rpi_hifiberry_dacplus_is_sclk(component);
+ 
+ 	return (isClk44EN && isClk48En && !isNoClk);
+ }
+@@ -149,6 +186,7 @@ static int snd_rpi_hifiberry_dacplus_ini
+ {
+ 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+ 	struct pcm512x_priv *priv;
++	struct snd_soc_card *card = &snd_rpi_hifiberry_dacplus;
+ 
+ 	if (slave)
+ 		snd_rpi_hifiberry_is_dacpro = false;
+@@ -187,6 +225,20 @@ static int snd_rpi_hifiberry_dacplus_ini
+ 		if (ret < 0)
+ 			dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
+ 	}
++	if (snd_reset_gpio) {
++		gpiod_set_value_cansleep(snd_reset_gpio, 0);
++		msleep(1);
++		gpiod_set_value_cansleep(snd_reset_gpio, 1);
++		msleep(1);
++		gpiod_set_value_cansleep(snd_reset_gpio, 0);
++	}
++
++	if (mute_ext_ctl)
++		snd_soc_add_card_controls(card,	hb_dacplus_opt_mute_controls,
++				ARRAY_SIZE(hb_dacplus_opt_mute_controls));
++
++	if (snd_mute_gpio)
++		gpiod_set_value_cansleep(snd_mute_gpio,	mute_ext);
+ 
+ 	return 0;
+ }
+@@ -254,6 +306,8 @@ static int snd_rpi_hifiberry_dacplus_sta
+ 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+ 
++	if (auto_mute)
++		gpiod_set_value_cansleep(snd_mute_gpio, 0);
+ 	if (leds_off)
+ 		return 0;
+ 	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+@@ -267,6 +321,8 @@ static void snd_rpi_hifiberry_dacplus_sh
+ 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+ 
+ 	snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++	if (auto_mute)
++		gpiod_set_value_cansleep(snd_mute_gpio, 1);
+ }
+ 
+ /* machine stream operations */
+@@ -342,6 +398,8 @@ static int snd_rpi_hifiberry_dacplus_pro
+ 	struct device_node *tpa_node;
+ 	struct property *tpa_prop;
+ 	struct of_changeset ocs;
++	struct property *pp;
++	int tmp;
+ 
+ 	/* probe for head phone amp */
+ 	ret = hb_hp_detect();
+@@ -396,6 +454,39 @@ static int snd_rpi_hifiberry_dacplus_pro
+ 						"hifiberry-dacplus,slave");
+ 		leds_off = of_property_read_bool(pdev->dev.of_node,
+ 						"hifiberry-dacplus,leds_off");
++		auto_mute = of_property_read_bool(pdev->dev.of_node,
++						"hifiberry-dacplus,auto_mute");
++
++		/*
++		 * check for HW MUTE as defined in DT-overlay
++		 * active high, therefore default to HIGH to MUTE
++		 */
++		snd_mute_gpio =	devm_gpiod_get_optional(&pdev->dev,
++						 "mute", GPIOD_OUT_HIGH);
++		if (IS_ERR(snd_mute_gpio)) {
++			dev_err(&pdev->dev, "Can't allocate GPIO (HW-MUTE)");
++			return PTR_ERR(snd_mute_gpio);
++		}
++
++		/* add ALSA control if requested in DT-overlay (AMP100) */
++		pp = of_find_property(pdev->dev.of_node,
++				"hifiberry-dacplus,mute_ext_ctl", &tmp);
++		if (pp) {
++			if (!of_property_read_u32(pdev->dev.of_node,
++				"hifiberry-dacplus,mute_ext_ctl", &mute_ext)) {
++				/* ALSA control will be used */
++				mute_ext_ctl = 1;
++			}
++		}
++
++		/* check for HW RESET (AMP100) */
++		snd_reset_gpio = devm_gpiod_get_optional(&pdev->dev,
++						"reset", GPIOD_OUT_HIGH);
++		if (IS_ERR(snd_reset_gpio)) {
++			dev_err(&pdev->dev, "Can't allocate GPIO (HW-RESET)");
++			return PTR_ERR(snd_reset_gpio);
++		}
++
+ 	}
+ 
+ 	ret = devm_snd_soc_register_card(&pdev->dev,
+@@ -403,7 +494,14 @@ static int snd_rpi_hifiberry_dacplus_pro
+ 	if (ret && ret != -EPROBE_DEFER)
+ 		dev_err(&pdev->dev,
+ 			"snd_soc_register_card() failed: %d\n", ret);
+-
++	if (!ret) {
++		if (snd_mute_gpio)
++			dev_info(&pdev->dev, "GPIO%i for HW-MUTE selected",
++					gpio_chip_hwgpio(snd_mute_gpio));
++		if (snd_reset_gpio)
++			dev_info(&pdev->dev, "GPIO%i for HW-RESET selected",
++					gpio_chip_hwgpio(snd_reset_gpio));
++	}
+ 	return ret;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch b/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch
new file mode 100644
index 0000000000..d5be433528
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch
@@ -0,0 +1,41 @@
+From a3028b49ed28dfcd27fb12dd811ef5572fc80c30 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 3 Feb 2021 16:23:43 +0000
+Subject: [PATCH] ARM: dts: Declare Pi400 and CM4 have no audio pins
+
+The audio_pins node is left as a placeholder for the audremap overlay,
+and it must have (empty) brcm,function and brcm,pins properties
+otherwise it will be rejected by the pinctrl driver.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=301891
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 4 ++--
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 2 ++
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -565,8 +565,8 @@
+ 
+ &gpio {
+ 	audio_pins: audio_pins {
+-		brcm,pins = <40 41>;
+-		brcm,function = <4>;
++		brcm,pins = <>;
++		brcm,function = <>;
+ 	};
+ };
+ 
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -556,6 +556,8 @@
+ 
+ &gpio {
+ 	audio_pins: audio_pins {
++		brcm,pins = <>;
++		brcm,function = <>;
+ 	};
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0453-media-i2c-imx290-Replace-V4L2_CID_GAIN-with-V4L2_CID.patch b/target/linux/bcm27xx/patches-5.10/950-0453-media-i2c-imx290-Replace-V4L2_CID_GAIN-with-V4L2_CID.patch
new file mode 100644
index 0000000000..7195802624
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0453-media-i2c-imx290-Replace-V4L2_CID_GAIN-with-V4L2_CID.patch
@@ -0,0 +1,38 @@
+From 4a7aa2079f074dc7c2767bfa98eafb1a387f5129 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Thu, 4 Feb 2021 17:29:32 +0000
+Subject: [PATCH] media: i2c: imx290: Replace V4L2_CID_GAIN with
+ V4L2_CID_ANALOGUE_GAIN
+
+Most software (including libcamera) requires V4L2_CID_ANALOGUE_GAIN,
+not V4L2_CID_GAIN.
+
+The range for the control is 0 to 100 for which the sensor uses only
+analogue gain; higher values would involve digital gain which this
+control should not apply.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -647,7 +647,7 @@ static int imx290_set_ctrl(struct v4l2_c
+ 		return 0;
+ 
+ 	switch (ctrl->id) {
+-	case V4L2_CID_GAIN:
++	case V4L2_CID_ANALOGUE_GAIN:
+ 		ret = imx290_set_gain(imx290, ctrl->val);
+ 		break;
+ 	case V4L2_CID_EXPOSURE:
+@@ -1331,7 +1331,7 @@ static int imx290_probe(struct i2c_clien
+ 	v4l2_ctrl_handler_init(&imx290->ctrls, 4);
+ 
+ 	v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+-			  V4L2_CID_GAIN, 0, 238, 1, 0);
++			  V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0);
+ 
+ 	mode = imx290->current_mode;
+ 	imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0454-media-i2c-imx290-Fix-number-of-controls-in-v4l2_ctrl.patch b/target/linux/bcm27xx/patches-5.10/950-0454-media-i2c-imx290-Fix-number-of-controls-in-v4l2_ctrl.patch
new file mode 100644
index 0000000000..02e0e435a4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0454-media-i2c-imx290-Fix-number-of-controls-in-v4l2_ctrl.patch
@@ -0,0 +1,28 @@
+From ff6a86ca7b8ca22cf270300ac192c7101a43bb44 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Thu, 4 Feb 2021 21:21:44 +0000
+Subject: [PATCH] media: i2c: imx290: Fix number of controls in
+ v4l2_ctrl_handler_init
+
+The number is only a hint, but may as well be correct.
+
+Fixes: 471e0029e98aa ("media: i2c: imx290: Convert HMAX setting into V4L2_CID_HBLANK")
+Fixes: be0b9b7ad1c27 ("media: i2c: imx290: Add support for V4L2_CID_VBLANK")
+Fixes: 8483f0d7599aa ("media: i2c: imx290: Add exposure control to the driver.")
+Fixes: 9764f3459c401 ("media: i2c: imx290: Add H and V flip controls")
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1328,7 +1328,7 @@ static int imx290_probe(struct i2c_clien
+ 	 */
+ 	imx290_entity_init_cfg(&imx290->sd, NULL);
+ 
+-	v4l2_ctrl_handler_init(&imx290->ctrls, 4);
++	v4l2_ctrl_handler_init(&imx290->ctrls, 9);
+ 
+ 	v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ 			  V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0455-ARM-bcm-Select-BRCMSTB_L2_IRQ-for-bcm2835.patch b/target/linux/bcm27xx/patches-5.10/950-0455-ARM-bcm-Select-BRCMSTB_L2_IRQ-for-bcm2835.patch
new file mode 100644
index 0000000000..e8923685fd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0455-ARM-bcm-Select-BRCMSTB_L2_IRQ-for-bcm2835.patch
@@ -0,0 +1,37 @@
+From c6d5aeba7fd60727436c04bfa4cae8b29d48e0de Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:22:55 +0100
+Subject: [PATCH] ARM: bcm: Select BRCMSTB_L2_IRQ for bcm2835
+
+The BCM2711 has a number of instances of interrupt controllers handled
+by the driver behind the BRCMSTB_L2_IRQ Kconfig option (irq-brcmstb-l2).
+
+Let's select that driver as part of the ARCH_BCM2835 Kconfig option.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Acked-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ arch/arm/mach-bcm/Kconfig    | 1 +
+ arch/arm64/Kconfig.platforms | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/arch/arm/mach-bcm/Kconfig
++++ b/arch/arm/mach-bcm/Kconfig
+@@ -161,6 +161,7 @@ config ARCH_BCM2835
+ 	select ARM_TIMER_SP804
+ 	select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
+ 	select BCM2835_TIMER
++	select BRCMSTB_L2_IRQ
+ 	select FIQ
+ 	select PINCTRL
+ 	select PINCTRL_BCM2835
+--- a/arch/arm64/Kconfig.platforms
++++ b/arch/arm64/Kconfig.platforms
+@@ -39,6 +39,7 @@ config ARCH_BCM2835
+ 	select ARM_AMBA
+ 	select ARM_GIC
+ 	select ARM_TIMER_SP804
++	select BRCMSTB_L2_IRQ
+ 	help
+ 	  This enables support for the Broadcom BCM2837 and BCM2711 SoC.
+ 	  These SoCs are used in the Raspberry Pi 3 and 4 devices.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0456-drm-vc4-hdmi-Update-the-CEC-clock-divider-on-HSM-rat.patch b/target/linux/bcm27xx/patches-5.10/950-0456-drm-vc4-hdmi-Update-the-CEC-clock-divider-on-HSM-rat.patch
new file mode 100644
index 0000000000..8c64066094
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0456-drm-vc4-hdmi-Update-the-CEC-clock-divider-on-HSM-rat.patch
@@ -0,0 +1,31 @@
+From beadd8dfb16c626c2261fc6f8aab935cd7412603 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:01 +0100
+Subject: [PATCH] drm/vc4: hdmi: Update the CEC clock divider on HSM
+ rate change
+
+As part of the enable sequence we might change the HSM clock rate if the
+pixel rate is different than the one we were already dealing with.
+
+On the BCM2835 however, the CEC clock derives from the HSM clock so any
+rate change will need to be reflected in the CEC clock divider to output
+40kHz.
+
+Fixes: cd4cb49dc5bb ("drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate")
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -801,6 +801,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 
+ 	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
+ 
++	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
++
+ 	/*
+ 	 * FIXME: When the pixel freq is 594MHz (4k60), this needs to be setup
+ 	 * at 300MHz.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0457-drm-vc4-hdmi-Introduce-a-CEC-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0457-drm-vc4-hdmi-Introduce-a-CEC-clock.patch
new file mode 100644
index 0000000000..52117eec29
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0457-drm-vc4-hdmi-Introduce-a-CEC-clock.patch
@@ -0,0 +1,60 @@
+From b4627f9f36d8af7cb7bf24d8c1daee8b48f12299 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:02 +0100
+Subject: [PATCH] drm/vc4: hdmi: Introduce a CEC clock
+
+While the BCM2835 had the CEC clock derived from the HSM clock, the
+BCM2711 has a dedicated parent clock for it.
+
+Let's introduce a separate clock for it so that we can handle both
+cases.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 9 ++++++++-
+ drivers/gpu/drm/vc4/vc4_hdmi.h | 1 +
+ 2 files changed, 9 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -150,7 +150,7 @@ static void vc4_hdmi_cec_update_clk_div(
+ 	 * Set the clock divider: the hsm_clock rate and this divider
+ 	 * setting will give a 40 kHz CEC clock.
+ 	 */
+-	clk_cnt = clk_get_rate(vc4_hdmi->hsm_clock) / CEC_CLOCK_FREQ;
++	clk_cnt = clk_get_rate(vc4_hdmi->cec_clock) / CEC_CLOCK_FREQ;
+ 	value |= clk_cnt << VC4_HDMI_CEC_DIV_CLK_CNT_SHIFT;
+ 	HDMI_WRITE(HDMI_CEC_CNTRL_1, value);
+ }
+@@ -1866,6 +1866,7 @@ static int vc4_hdmi_init_resources(struc
+ 		return PTR_ERR(vc4_hdmi->hsm_clock);
+ 	}
+ 	vc4_hdmi->audio_clock = vc4_hdmi->hsm_clock;
++	vc4_hdmi->cec_clock = vc4_hdmi->hsm_clock;
+ 
+ 	return 0;
+ }
+@@ -1960,6 +1961,12 @@ static int vc5_hdmi_init_resources(struc
+ 		return PTR_ERR(vc4_hdmi->audio_clock);
+ 	}
+ 
++	vc4_hdmi->cec_clock = devm_clk_get(dev, "cec");
++	if (IS_ERR(vc4_hdmi->cec_clock)) {
++		DRM_ERROR("Failed to get CEC clock\n");
++		return PTR_ERR(vc4_hdmi->cec_clock);
++	}
++
+ 	vc4_hdmi->reset = devm_reset_control_get(dev, NULL);
+ 	if (IS_ERR(vc4_hdmi->reset)) {
+ 		DRM_ERROR("Failed to get HDMI reset line\n");
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -154,6 +154,7 @@ struct vc4_hdmi {
+ 	bool cec_tx_ok;
+ 	bool cec_irq_was_rx;
+ 
++	struct clk *cec_clock;
+ 	struct clk *pixel_clock;
+ 	struct clk *hsm_clock;
+ 	struct clk *audio_clock;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0458-drm-vc4-hdmi-Split-the-interrupt-handlers.patch b/target/linux/bcm27xx/patches-5.10/950-0458-drm-vc4-hdmi-Split-the-interrupt-handlers.patch
new file mode 100644
index 0000000000..edc67eaae2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0458-drm-vc4-hdmi-Split-the-interrupt-handlers.patch
@@ -0,0 +1,141 @@
+From 423173ed6e873ec9a6ae0e62d55bd4c746f0f982 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:03 +0100
+Subject: [PATCH] drm/vc4: hdmi: Split the interrupt handlers
+
+The BCM2711 has two different interrupt sources to transmit and receive
+CEC messages, provided through an external interrupt chip shared between
+the two HDMI interrupt controllers.
+
+The rest of the CEC controller is identical though so we need to change
+a bit the code organisation to share the code as much as possible, yet
+still allowing to register independant handlers.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 86 +++++++++++++++++++++++++---------
+ 1 file changed, 65 insertions(+), 21 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1571,15 +1571,22 @@ static int vc4_hdmi_audio_init(struct vc
+ }
+ 
+ #ifdef CONFIG_DRM_VC4_HDMI_CEC
+-static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv)
++static irqreturn_t vc4_cec_irq_handler_rx_thread(int irq, void *priv)
++{
++	struct vc4_hdmi *vc4_hdmi = priv;
++
++	if (vc4_hdmi->cec_rx_msg.len)
++		cec_received_msg(vc4_hdmi->cec_adap,
++				 &vc4_hdmi->cec_rx_msg);
++
++	return IRQ_HANDLED;
++}
++
++static irqreturn_t vc4_cec_irq_handler_tx_thread(int irq, void *priv)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = priv;
+ 
+-	if (vc4_hdmi->cec_irq_was_rx) {
+-		if (vc4_hdmi->cec_rx_msg.len)
+-			cec_received_msg(vc4_hdmi->cec_adap,
+-					 &vc4_hdmi->cec_rx_msg);
+-	} else if (vc4_hdmi->cec_tx_ok) {
++	if (vc4_hdmi->cec_tx_ok) {
+ 		cec_transmit_done(vc4_hdmi->cec_adap, CEC_TX_STATUS_OK,
+ 				  0, 0, 0, 0);
+ 	} else {
+@@ -1593,6 +1600,19 @@ static irqreturn_t vc4_cec_irq_handler_t
+ 	return IRQ_HANDLED;
+ }
+ 
++static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv)
++{
++	struct vc4_hdmi *vc4_hdmi = priv;
++	irqreturn_t ret;
++
++	if (vc4_hdmi->cec_irq_was_rx)
++		ret = vc4_cec_irq_handler_rx_thread(irq, priv);
++	else
++		ret = vc4_cec_irq_handler_tx_thread(irq, priv);
++
++	return ret;
++}
++
+ static void vc4_cec_read_msg(struct vc4_hdmi *vc4_hdmi, u32 cntrl1)
+ {
+ 	struct drm_device *dev = vc4_hdmi->connector.dev;
+@@ -1617,31 +1637,55 @@ static void vc4_cec_read_msg(struct vc4_
+ 	}
+ }
+ 
++static irqreturn_t vc4_cec_irq_handler_tx_bare(int irq, void *priv)
++{
++	struct vc4_hdmi *vc4_hdmi = priv;
++	u32 cntrl1;
++
++	cntrl1 = HDMI_READ(HDMI_CEC_CNTRL_1);
++	vc4_hdmi->cec_tx_ok = cntrl1 & VC4_HDMI_CEC_TX_STATUS_GOOD;
++	cntrl1 &= ~VC4_HDMI_CEC_START_XMIT_BEGIN;
++	HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1);
++
++	return IRQ_WAKE_THREAD;
++}
++
++static irqreturn_t vc4_cec_irq_handler_rx_bare(int irq, void *priv)
++{
++	struct vc4_hdmi *vc4_hdmi = priv;
++	u32 cntrl1;
++
++	vc4_hdmi->cec_rx_msg.len = 0;
++	cntrl1 = HDMI_READ(HDMI_CEC_CNTRL_1);
++	vc4_cec_read_msg(vc4_hdmi, cntrl1);
++	cntrl1 |= VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
++	HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1);
++	cntrl1 &= ~VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
++
++	HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1);
++
++	return IRQ_WAKE_THREAD;
++}
++
+ static irqreturn_t vc4_cec_irq_handler(int irq, void *priv)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = priv;
+ 	u32 stat = HDMI_READ(HDMI_CEC_CPU_STATUS);
+-	u32 cntrl1, cntrl5;
++	irqreturn_t ret;
++	u32 cntrl5;
+ 
+ 	if (!(stat & VC4_HDMI_CPU_CEC))
+ 		return IRQ_NONE;
+-	vc4_hdmi->cec_rx_msg.len = 0;
+-	cntrl1 = HDMI_READ(HDMI_CEC_CNTRL_1);
++
+ 	cntrl5 = HDMI_READ(HDMI_CEC_CNTRL_5);
+ 	vc4_hdmi->cec_irq_was_rx = cntrl5 & VC4_HDMI_CEC_RX_CEC_INT;
+-	if (vc4_hdmi->cec_irq_was_rx) {
+-		vc4_cec_read_msg(vc4_hdmi, cntrl1);
+-		cntrl1 |= VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
+-		HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1);
+-		cntrl1 &= ~VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
+-	} else {
+-		vc4_hdmi->cec_tx_ok = cntrl1 & VC4_HDMI_CEC_TX_STATUS_GOOD;
+-		cntrl1 &= ~VC4_HDMI_CEC_START_XMIT_BEGIN;
+-	}
+-	HDMI_WRITE(HDMI_CEC_CNTRL_1, cntrl1);
+-	HDMI_WRITE(HDMI_CEC_CPU_CLEAR, VC4_HDMI_CPU_CEC);
++	if (vc4_hdmi->cec_irq_was_rx)
++		ret = vc4_cec_irq_handler_rx_bare(irq, priv);
++	else
++		ret = vc4_cec_irq_handler_tx_bare(irq, priv);
+ 
+-	return IRQ_WAKE_THREAD;
++	HDMI_WRITE(HDMI_CEC_CPU_CLEAR, VC4_HDMI_CPU_CEC);
++	return ret;
+ }
+ 
+ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0459-drm-vc4-hdmi-Support-BCM2711-CEC-interrupt-setup.patch b/target/linux/bcm27xx/patches-5.10/950-0459-drm-vc4-hdmi-Support-BCM2711-CEC-interrupt-setup.patch
new file mode 100644
index 0000000000..1e6f1d4c0d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0459-drm-vc4-hdmi-Support-BCM2711-CEC-interrupt-setup.patch
@@ -0,0 +1,116 @@
+From fe8bcda64e4d30cf91f2807973940873c1a577a2 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:04 +0100
+Subject: [PATCH] drm/vc4: hdmi: Support BCM2711 CEC interrupt setup
+
+The HDMI controller found in the BCM2711 has an external interrupt
+controller for the CEC and hotplug interrupt shared between the two
+instances.
+
+Let's add a variant flag to register a single interrupt handler and
+deals with the interrupt handler setup, or two interrupt handlers
+relying on an external irqchip.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 42 ++++++++++++++++++++++++++--------
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  7 ++++++
+ 2 files changed, 39 insertions(+), 10 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1722,9 +1722,11 @@ static int vc4_hdmi_cec_adap_enable(stru
+ 			   ((3600 / usecs) << VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT) |
+ 			   ((3500 / usecs) << VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT));
+ 
+-		HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC);
++		if (!vc4_hdmi->variant->external_irq_controller)
++			HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC);
+ 	} else {
+-		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
++		if (!vc4_hdmi->variant->external_irq_controller)
++			HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
+ 		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
+ 			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
+ 	}
+@@ -1796,8 +1798,6 @@ static int vc4_hdmi_cec_init(struct vc4_
+ 	cec_fill_conn_info_from_drm(&conn_info, &vc4_hdmi->connector);
+ 	cec_s_conn_info(vc4_hdmi->cec_adap, &conn_info);
+ 
+-	HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff);
+-
+ 	value = HDMI_READ(HDMI_CEC_CNTRL_1);
+ 	/* Set the logical address to Unregistered */
+ 	value |= VC4_HDMI_CEC_ADDR_MASK;
+@@ -1805,12 +1805,32 @@ static int vc4_hdmi_cec_init(struct vc4_
+ 
+ 	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
+ 
+-	ret = devm_request_threaded_irq(&pdev->dev, platform_get_irq(pdev, 0),
+-					vc4_cec_irq_handler,
+-					vc4_cec_irq_handler_thread, 0,
+-					"vc4 hdmi cec", vc4_hdmi);
+-	if (ret)
+-		goto err_delete_cec_adap;
++	if (vc4_hdmi->variant->external_irq_controller) {
++		ret = devm_request_threaded_irq(&pdev->dev,
++						platform_get_irq_byname(pdev, "cec-rx"),
++						vc4_cec_irq_handler_rx_bare,
++						vc4_cec_irq_handler_rx_thread, 0,
++						"vc4 hdmi cec rx", vc4_hdmi);
++		if (ret)
++			goto err_delete_cec_adap;
++
++		ret = devm_request_threaded_irq(&pdev->dev,
++						platform_get_irq_byname(pdev, "cec-tx"),
++						vc4_cec_irq_handler_tx_bare,
++						vc4_cec_irq_handler_tx_thread, 0,
++						"vc4 hdmi cec tx", vc4_hdmi);
++		if (ret)
++			goto err_delete_cec_adap;
++	} else {
++		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff);
++
++		ret = devm_request_threaded_irq(&pdev->dev, platform_get_irq(pdev, 0),
++						vc4_cec_irq_handler,
++						vc4_cec_irq_handler_thread, 0,
++						"vc4 hdmi cec", vc4_hdmi);
++		if (ret)
++			goto err_delete_cec_adap;
++	}
+ 
+ 	ret = cec_register_adapter(vc4_hdmi->cec_adap, &pdev->dev);
+ 	if (ret < 0)
+@@ -2272,6 +2292,7 @@ static const struct vc4_hdmi_variant bcm
+ 		PHY_LANE_CK,
+ 	},
+ 	.unsupported_odd_h_timings	= true,
++	.external_irq_controller	= true,
+ 
+ 	.init_resources		= vc5_hdmi_init_resources,
+ 	.csc_setup		= vc5_hdmi_csc_setup,
+@@ -2298,6 +2319,7 @@ static const struct vc4_hdmi_variant bcm
+ 		PHY_LANE_2,
+ 	},
+ 	.unsupported_odd_h_timings	= true,
++	.external_irq_controller	= true,
+ 
+ 	.init_resources		= vc5_hdmi_init_resources,
+ 	.csc_setup		= vc5_hdmi_csc_setup,
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -61,6 +61,13 @@ struct vc4_hdmi_variant {
+ 	/* The BCM2711 cannot deal with odd horizontal pixel timings */
+ 	bool unsupported_odd_h_timings;
+ 
++	/*
++	 * The BCM2711 CEC/hotplug IRQ controller is shared between the
++	 * two HDMI controllers, and we have a proper irqchip driver for
++	 * it.
++	 */
++	bool external_irq_controller;
++
+ 	/* Callback to get the resources (memory region, interrupts,
+ 	 * clocks, etc) for that variant.
+ 	 */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0460-drm-vc4-hdmi-Don-t-register-the-CEC-adapter-if-there.patch b/target/linux/bcm27xx/patches-5.10/950-0460-drm-vc4-hdmi-Don-t-register-the-CEC-adapter-if-there.patch
new file mode 100644
index 0000000000..e20e0be9c3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0460-drm-vc4-hdmi-Don-t-register-the-CEC-adapter-if-there.patch
@@ -0,0 +1,37 @@
+From 8fb908fe3f80d6bbc0a7f5e7fe14ababe7f87f83 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:06 +0100
+Subject: [PATCH] drm/vc4: hdmi: Don't register the CEC adapter if
+ there's no interrupts
+
+We introduced the BCM2711 support to the vc4 HDMI controller with 5.10,
+but this was lacking any of the interrupts of the CEC controller so we
+have to deal with the backward compatibility.
+
+Do so by simply ignoring the CEC setup if the DT doesn't have the
+interrupts property.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1784,9 +1784,15 @@ static int vc4_hdmi_cec_init(struct vc4_
+ {
+ 	struct cec_connector_info conn_info;
+ 	struct platform_device *pdev = vc4_hdmi->pdev;
++	struct device *dev = &pdev->dev;
+ 	u32 value;
+ 	int ret;
+ 
++	if (!of_find_property(dev->of_node, "interrupts", NULL)) {
++		dev_warn(dev, "'interrupts' DT property is missing, no CEC\n");
++		return 0;
++	}
++
+ 	vc4_hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops,
+ 						  vc4_hdmi, "vc4",
+ 						  CEC_CAP_DEFAULTS |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0461-dt-binding-display-bcm2711-hdmi-Add-CEC-and-hotplug-.patch b/target/linux/bcm27xx/patches-5.10/950-0461-dt-binding-display-bcm2711-hdmi-Add-CEC-and-hotplug-.patch
new file mode 100644
index 0000000000..dd989dfb9c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0461-dt-binding-display-bcm2711-hdmi-Add-CEC-and-hotplug-.patch
@@ -0,0 +1,51 @@
+From d08cc5b251941721372910b4f7d0fdafced25d45 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:07 +0100
+Subject: [PATCH] dt-binding: display: bcm2711-hdmi: Add CEC and
+ hotplug interrupts
+
+The CEC and hotplug interrupts were missing when that binding was
+introduced, let's add them in now that we've figured out how it works.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bindings/display/brcm,bcm2711-hdmi.yaml   | 20 ++++++++++++++++++-
+ 1 file changed, 19 insertions(+), 1 deletion(-)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
+@@ -53,6 +53,24 @@ properties:
+       - const: audio
+       - const: cec
+ 
++  interrupts:
++    items:
++      - description: CEC TX interrupt
++      - description: CEC RX interrupt
++      - description: CEC stuck at low interrupt
++      - description: Wake-up interrupt
++      - description: Hotplug connected interrupt
++      - description: Hotplug removed interrupt
++
++  interrupt-names:
++    items:
++      - const: cec-tx
++      - const: cec-rx
++      - const: cec-low
++      - const: wakeup
++      - const: hpd-connected
++      - const: hpd-removed
++
+   ddc:
+     allOf:
+       - $ref: /schemas/types.yaml#/definitions/phandle
+@@ -90,7 +108,7 @@ required:
+   - resets
+   - ddc
+ 
+-additionalProperties: false
++unevaluatedProperties: false
+ 
+ examples:
+   - |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0462-ARM-dts-bcm2711-Add-the-CEC-interrupt-controller.patch b/target/linux/bcm27xx/patches-5.10/950-0462-ARM-dts-bcm2711-Add-the-CEC-interrupt-controller.patch
new file mode 100644
index 0000000000..1821b1e6b4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0462-ARM-dts-bcm2711-Add-the-CEC-interrupt-controller.patch
@@ -0,0 +1,58 @@
+From 37e369738ad24d0e43a5db645dcf3a7c434d0db9 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 11 Jan 2021 15:23:09 +0100
+Subject: [PATCH] ARM: dts: bcm2711: Add the CEC interrupt controller
+
+The CEC and hotplug interrupts go through an interrupt controller shared
+between the two HDMI controllers.
+
+Let's add that interrupt controller and the interrupts for both HDMI
+controllers
+
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -308,6 +308,14 @@
+ 			#reset-cells = <1>;
+ 		};
+ 
++		aon_intr: interrupt-controller@7ef00100 {
++			compatible = "brcm,bcm2711-l2-intc", "brcm,l2-intc";
++			reg = <0x7ef00100 0x30>;
++			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
++			interrupt-controller;
++			#interrupt-cells = <1>;
++		};
++
+ 		hdmi0: hdmi@7ef00700 {
+ 			compatible = "brcm,bcm2711-hdmi0";
+ 			reg = <0x7ef00700 0x300>,
+@@ -336,6 +344,11 @@
+ 				 <&clk_27MHz>;
+ 			clock-names = "hdmi", "bvb", "audio", "cec";
+ 			resets = <&dvp 0>;
++			interrupt-parent = <&aon_intr>;
++			interrupts = <0>, <1>, <2>,
++				     <3>, <4>, <5>;
++			interrupt-names = "cec-tx", "cec-rx", "cec-low",
++					  "wakeup", "hpd-connected", "hpd-removed";
+ 			ddc = <&ddc0>;
+ 			dmas = <&dma 10>;
+ 			dma-names = "audio-rx";
+@@ -380,6 +393,11 @@
+ 				 <&dvp 0>,
+ 				 <&clk_27MHz>;
+ 			resets = <&dvp 1>;
++			interrupt-parent = <&aon_intr>;
++			interrupts = <8>, <7>, <6>,
++				     <9>, <10>, <11>;
++			interrupt-names = "cec-tx", "cec-rx", "cec-low",
++					  "wakeup", "hpd-connected", "hpd-removed";
+ 			dmas = <&dma 17>;
+ 			dma-names = "audio-rx";
+ 			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0463-bcm2711-Disable-bsc_intr-and-aon_intr-by-default-and.patch b/target/linux/bcm27xx/patches-5.10/950-0463-bcm2711-Disable-bsc_intr-and-aon_intr-by-default-and.patch
new file mode 100644
index 0000000000..168567b4ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0463-bcm2711-Disable-bsc_intr-and-aon_intr-by-default-and.patch
@@ -0,0 +1,38 @@
+From 8c11d9b768c6753f045e8669a9d90bb008874b4b Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 9 Dec 2020 16:37:01 +0000
+Subject: [PATCH] bcm2711: Disable bsc_intr and aon_intr by default and
+ enable in overlay
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi                     |  2 ++
+ .../boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts  | 14 ++++++++++++++
+ 2 files changed, 16 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -314,6 +314,7 @@
+ 			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ 			interrupt-controller;
+ 			#interrupt-cells = <1>;
++			status = "disabled";
+ 		};
+ 
+ 		hdmi0: hdmi@7ef00700 {
+--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+@@ -166,6 +166,13 @@
+ 		};
+ 	};
+ 
++	fragment@24 {
++		target = <&aon_intr>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
+ 	__overrides__ {
+ 		audio   = <0>,"!17";
+ 		audio1   = <0>,"!18";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0464-bcm2711-Remove-old-GIC-interrupt.patch b/target/linux/bcm27xx/patches-5.10/950-0464-bcm2711-Remove-old-GIC-interrupt.patch
new file mode 100644
index 0000000000..2d1b6ac45c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0464-bcm2711-Remove-old-GIC-interrupt.patch
@@ -0,0 +1,30 @@
+From b74589474b5db6154cca49278df7fdccf92b6ab9 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 11 Jan 2021 17:08:20 +0000
+Subject: [PATCH] bcm2711: Remove old GIC interrupt
+
+Now handled through aon_intr
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -353,7 +353,6 @@
+ 			ddc = <&ddc0>;
+ 			dmas = <&dma 10>;
+ 			dma-names = "audio-rx";
+-			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ 			status = "disabled";
+ 		};
+ 
+@@ -401,7 +400,6 @@
+ 					  "wakeup", "hpd-connected", "hpd-removed";
+ 			dmas = <&dma 17>;
+ 			dma-names = "audio-rx";
+-			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+ 			status = "disabled";
+ 		};
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0465-staging-bcm2835-camera-Fix-the-cherry-pick-of-AWB-Gr.patch b/target/linux/bcm27xx/patches-5.10/950-0465-staging-bcm2835-camera-Fix-the-cherry-pick-of-AWB-Gr.patch
new file mode 100644
index 0000000000..9d4fc40cbc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0465-staging-bcm2835-camera-Fix-the-cherry-pick-of-AWB-Gr.patch
@@ -0,0 +1,28 @@
+From da208ac4f51f643928847eabd81b7422fa6f6536 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 8 Feb 2021 11:48:35 +0000
+Subject: [PATCH] staging:bcm2835-camera: Fix the cherry-pick of AWB
+ Greyworld
+
+The cherry-pick of the patch that added the greyworld AWB mode
+was incomplete. Fix it up.
+
+Fixes: b3ef481fe243 "staging: bcm2835-camera: Add greyworld AWB mode"
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-camera/controls.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
+@@ -1056,8 +1056,8 @@ static const struct bm2835_mmal_v4l2_ctr
+ 	{
+ 		.id = V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
+ 		.type = MMAL_CONTROL_TYPE_STD_MENU,
+-		.min = ~0x3ff,
+-		.max = V4L2_WHITE_BALANCE_SHADE,
++		.min = ~0x7ff,
++		.max = V4L2_WHITE_BALANCE_GREYWORLD,
+ 		.def = V4L2_WHITE_BALANCE_AUTO,
+ 		.step = 0,
+ 		.imenu = NULL,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0466-Overlays-for-PiFi-Mini-amp.patch b/target/linux/bcm27xx/patches-5.10/950-0466-Overlays-for-PiFi-Mini-amp.patch
new file mode 100644
index 0000000000..24dc00be6a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0466-Overlays-for-PiFi-Mini-amp.patch
@@ -0,0 +1,83 @@
+From 1040be57555a700e5949aa509299fea40649269e Mon Sep 17 00:00:00 2001
+From: David Knell <david.knell@gmail.com>
+Date: Mon, 8 Feb 2021 03:33:30 +0000
+Subject: [PATCH] Overlays for PiFi-Mini amp
+
+Signed-off-by: David Knell <david.knell@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 +++
+ .../dts/overlays/pifi-mini-210-overlay.dts    | 42 +++++++++++++++++++
+ 3 files changed, 49 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/pifi-mini-210-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -130,6 +130,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	pibell.dtbo \
+ 	pifacedigital.dtbo \
+ 	pifi-40.dtbo \
++	pifi-mini-210.dtbo \
+ 	piglow.dtbo \
+ 	piscreen.dtbo \
+ 	piscreen2r.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2131,6 +2131,12 @@ Load:   dtoverlay=pifi-40
+ Params: <None>
+ 
+ 
++Name:   pifi-mini-210
++Info:   Configures the PiFi Mini stereo amplifier
++Load:   dtoverlay=pifi-mini-210
++Params: <None>
++
++
+ Name:   piglow
+ Info:   Configures the PiGlow by pimoroni.com
+ Load:   dtoverlay=piglow
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pifi-mini-210-overlay.dts
+@@ -0,0 +1,42 @@
++// Definitions for PiFi Mini 210
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			tas5711@1a {
++				#sound-dai-cells = <0>;
++				compatible = "ti,tas5711";
++				reg = <0x1a>;
++				status = "okay";
++				pdn-gpios = <&gpio 23 1>;
++				reset-gpios = <&gpio 24 1>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "pifi,pifi-mini-210";
++			i2s-controller = <&i2s>;
++
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch b/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch
new file mode 100644
index 0000000000..a74bc8c966
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch
@@ -0,0 +1,144 @@
+From 4951e0d22b58566678a16d53bf06851e1b63eeff Mon Sep 17 00:00:00 2001
+From: David Knell <david.knell@gmail.com>
+Date: Mon, 8 Feb 2021 03:35:15 +0000
+Subject: [PATCH] Added PiFi-Mini to rpi-simple-soundcard.c
+
+Signed-off-by: David Knell <david.knell@gmail.com>
+---
+ sound/soc/bcm/rpi-simple-soundcard.c | 94 +++++++++++++++++++++++++---
+ 1 file changed, 87 insertions(+), 7 deletions(-)
+
+--- a/sound/soc/bcm/rpi-simple-soundcard.c
++++ b/sound/soc/bcm/rpi-simple-soundcard.c
+@@ -32,6 +32,7 @@
+ 
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
++#include <linux/gpio/consumer.h>
+ 
+ #include <sound/core.h>
+ #include <sound/pcm.h>
+@@ -45,6 +46,13 @@ struct snd_rpi_simple_drvdata {
+ 	unsigned int fixed_bclk_ratio;
+ };
+ 
++static struct snd_soc_card snd_rpi_simple = {
++	.driver_name  = "RPi-simple",
++	.owner        = THIS_MODULE,
++	.dai_link     = NULL,
++	.num_links    = 1, /* Only a single DAI supported at the moment */
++};
++
+ static int snd_rpi_simple_init(struct snd_soc_pcm_runtime *rtd)
+ {
+ 	struct snd_rpi_simple_drvdata *drvdata =
+@@ -58,6 +66,60 @@ static int snd_rpi_simple_init(struct sn
+ 	return 0;
+ }
+ 
++static int pifi_mini_210_init(struct snd_soc_pcm_runtime *rtd)
++{
++	struct snd_soc_component *dac;
++	struct gpio_desc *pdn_gpio, *rst_gpio;
++	struct snd_soc_dai *codec_dai;
++	int ret;
++
++	snd_rpi_simple_init(rtd);
++	codec_dai = asoc_rtd_to_codec(rtd, 0);
++
++	dac = codec_dai[0].component;
++
++	pdn_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "pdn",
++						GPIOD_OUT_LOW);
++	if (IS_ERR(pdn_gpio)) {
++		ret = PTR_ERR(pdn_gpio);
++		dev_err(snd_rpi_simple.dev, "failed to get pdn gpio: %d\n", ret);
++		return ret;
++	}
++
++	rst_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "rst",
++						GPIOD_OUT_LOW);
++	if (IS_ERR(rst_gpio)) {
++		ret = PTR_ERR(rst_gpio);
++		dev_err(snd_rpi_simple.dev, "failed to get rst gpio: %d\n", ret);
++		return ret;
++	}
++
++	// Set up cards - pulse power down and reset first, then
++	// set up according to datasheet
++	gpiod_set_value_cansleep(pdn_gpio, 1);
++	gpiod_set_value_cansleep(rst_gpio, 1);
++	usleep_range(1000, 10000);
++	gpiod_set_value_cansleep(pdn_gpio, 0);
++	usleep_range(20000, 30000);
++	gpiod_set_value_cansleep(rst_gpio, 0);
++	usleep_range(20000, 30000);
++
++	// Oscillator trim
++	snd_soc_component_write(dac, 0x1b, 0);
++	usleep_range(60000, 80000);
++
++	// MCLK at 64fs, sample rate 44.1 or 48kHz
++	snd_soc_component_write(dac, 0x00, 0x60);
++
++	// Set up for BTL - AD/BD mode - AD is 0x00107772, BD is 0x00987772
++	snd_soc_component_write(dac, 0x20, 0x00107772);
++
++	// End mute
++	snd_soc_component_write(dac, 0x05, 0x00);
++
++	return 0;
++}
++
+ static int snd_rpi_simple_hw_params(struct snd_pcm_substream *substream,
+ 		struct snd_pcm_hw_params *params)
+ {
+@@ -255,6 +317,29 @@ static struct snd_rpi_simple_drvdata drv
+ 	.fixed_bclk_ratio = 64,
+ };
+ 
++SND_SOC_DAILINK_DEFS(pifi_mini_210,
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
++
++static struct snd_soc_dai_link snd_pifi_mini_210_dai[] = {
++	{
++		.name           = "PiFi Mini 210",
++		.stream_name    = "PiFi Mini 210 HiFi",
++		.init			= pifi_mini_210_init,
++		.dai_fmt        = SND_SOC_DAIFMT_I2S |
++					SND_SOC_DAIFMT_NB_NF |
++					SND_SOC_DAIFMT_CBS_CFS,
++		SND_SOC_DAILINK_REG(pifi_mini_210),
++	},
++};
++
++static struct snd_rpi_simple_drvdata drvdata_pifi_mini_210 = {
++	.card_name        = "snd_pifi_mini_210",
++	.dai              = snd_pifi_mini_210_dai,
++	.fixed_bclk_ratio = 64,
++};
++
+ static const struct of_device_id snd_rpi_simple_of_match[] = {
+ 	{ .compatible = "adi,adau1977-adc",
+ 		.data = (void *) &drvdata_adau1977 },
+@@ -269,16 +354,11 @@ static const struct of_device_id snd_rpi
+ 	{ .compatible = "rpi,rpi-dac", &drvdata_rpi_dac},
+ 	{ .compatible = "merus,merus-amp",
+ 		.data = (void *) &drvdata_merus_amp },
++	{ .compatible = "pifi,pifi-mini-210",
++		.data = (void *) &drvdata_pifi_mini_210 },
+ 	{},
+ };
+ 
+-static struct snd_soc_card snd_rpi_simple = {
+-	.driver_name  = "RPi-simple",
+-	.owner        = THIS_MODULE,
+-	.dai_link     = NULL,
+-	.num_links    = 1, /* Only a single DAI supported at the moment */
+-};
+-
+ static int snd_rpi_simple_probe(struct platform_device *pdev)
+ {
+ 	int ret = 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0468-bcm2835-isp-Allow-formats-with-different-colour-spac.patch b/target/linux/bcm27xx/patches-5.10/950-0468-bcm2835-isp-Allow-formats-with-different-colour-spac.patch
new file mode 100644
index 0000000000..8dc53051bd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0468-bcm2835-isp-Allow-formats-with-different-colour-spac.patch
@@ -0,0 +1,712 @@
+From bfa002eac168328b599ea70ed81667c03b16cb7e Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 12 Jan 2021 13:55:39 +0000
+Subject: [PATCH] bcm2835-isp: Allow formats with different colour
+ spaces.
+
+Each supported format now includes a mask showing the allowed colour
+spaces, as well as a default colour space for when one was not
+specified.
+
+Additionally we translate the colour space to mmal format and pass it
+over to the VideoCore.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ .../bcm2835-isp/bcm2835-isp-fmts.h            | 180 ++++++++++++------
+ .../bcm2835-isp/bcm2835-v4l2-isp.c            |  66 ++++++-
+ 2 files changed, 190 insertions(+), 56 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+@@ -20,10 +20,29 @@ struct bcm2835_isp_fmt {
+ 	int bytesperline_align;
+ 	u32 mmal_fmt;
+ 	int size_multiplier_x2;
+-	enum v4l2_colorspace colorspace;
++	u32 colorspace_mask;
++	enum v4l2_colorspace colorspace_default;
+ 	unsigned int step_size;
+ };
+ 
++#define V4L2_COLORSPACE_MASK(colorspace) BIT(colorspace)
++
++#define V4L2_COLORSPACE_MASK_JPEG V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_JPEG)
++#define V4L2_COLORSPACE_MASK_SMPTE170M V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_SMPTE170M)
++#define V4L2_COLORSPACE_MASK_REC709 V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_REC709)
++#define V4L2_COLORSPACE_MASK_SRGB V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_SRGB)
++#define V4L2_COLORSPACE_MASK_RAW V4L2_COLORSPACE_MASK(V4L2_COLORSPACE_RAW)
++
++/*
++ * The colour spaces we support for YUV outputs. SRGB features here because,
++ * once you assign the default transfer func and so on, it and JPEG effectively
++ * mean the same.
++ */
++#define V4L2_COLORSPACE_MASK_YUV (V4L2_COLORSPACE_MASK_JPEG | \
++				  V4L2_COLORSPACE_MASK_SRGB | \
++				  V4L2_COLORSPACE_MASK_SMPTE170M | \
++				  V4L2_COLORSPACE_MASK_REC709)
++
+ static const struct bcm2835_isp_fmt supported_formats[] = {
+ 	{
+ 		/* YUV formats */
+@@ -32,7 +51,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_I420,
+ 		.size_multiplier_x2 = 3,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_JPEG,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_YVU420,
+@@ -40,7 +60,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_YV12,
+ 		.size_multiplier_x2 = 3,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_NV12,
+@@ -48,7 +69,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_NV12,
+ 		.size_multiplier_x2 = 3,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_NV21,
+@@ -56,7 +78,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_NV21,
+ 		.size_multiplier_x2 = 3,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_YUYV,
+@@ -64,7 +87,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_YUYV,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_UYVY,
+@@ -72,7 +96,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_UYVY,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_YVYU,
+@@ -80,7 +105,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_YVYU,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_VYUY,
+@@ -88,7 +114,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_VYUY,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SMPTE170M,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
++		.colorspace_default = V4L2_COLORSPACE_SMPTE170M,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* RGB formats */
+@@ -97,7 +124,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_RGB24,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_SRGB,
++		.colorspace_default = V4L2_COLORSPACE_SRGB,
+ 		.step_size	    = 1,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_RGB565,
+@@ -105,7 +133,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_RGB16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_SRGB,
++		.colorspace_default = V4L2_COLORSPACE_SRGB,
+ 		.step_size	    = 1,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_BGR24,
+@@ -113,7 +142,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BGR24,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_SRGB,
++		.colorspace_default = V4L2_COLORSPACE_SRGB,
+ 		.step_size	    = 1,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_XBGR32,
+@@ -121,7 +151,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_BGRA,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_SRGB,
++		.colorspace_default = V4L2_COLORSPACE_SRGB,
+ 		.step_size	    = 1,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_RGBX32,
+@@ -129,7 +160,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_RGBA,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_SRGB,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_SRGB,
++		.colorspace_default = V4L2_COLORSPACE_SRGB,
+ 		.step_size	    = 1,
+ 	}, {
+ 		/* Bayer formats */
+@@ -139,7 +171,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB8,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR8,
+@@ -147,7 +180,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR8,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG8,
+@@ -155,7 +189,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG8,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG8,
+@@ -163,7 +198,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG8,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 10 bit */
+@@ -172,7 +208,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB10P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR10P,
+@@ -180,7 +217,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR10P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG10P,
+@@ -188,7 +226,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG10P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG10P,
+@@ -196,7 +235,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG10P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 12 bit */
+@@ -205,7 +245,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB12P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR12P,
+@@ -213,7 +254,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR12P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG12P,
+@@ -221,7 +263,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG12P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG12P,
+@@ -229,7 +272,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG12P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 14 bit */
+@@ -238,7 +282,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB14P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR14P,
+@@ -246,7 +291,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR14P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG14P,
+@@ -254,7 +300,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG14P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG14P,
+@@ -262,7 +309,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG14P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 16 bit */
+@@ -271,7 +319,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR16,
+@@ -279,7 +328,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG16,
+@@ -287,7 +337,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG16,
+@@ -295,7 +346,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* Bayer formats unpacked to 16bpp */
+@@ -305,7 +357,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB10,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR10,
+@@ -313,7 +366,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR10,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG10,
+@@ -321,7 +375,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG10,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG10,
+@@ -329,7 +384,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG10,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 12 bit */
+@@ -338,7 +394,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB12,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR12,
+@@ -346,7 +403,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR12,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG12,
+@@ -354,7 +412,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG12,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG12,
+@@ -362,7 +421,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG12,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 14 bit */
+@@ -371,7 +431,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SRGGB14,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SBGGR14,
+@@ -379,7 +440,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SBGGR14,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGRBG14,
+@@ -387,7 +449,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGRBG14,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_SGBRG14,
+@@ -395,7 +458,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_BAYER_SGBRG14,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* Monochrome MIPI formats */
+@@ -405,7 +469,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_GREY,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 10 bit */
+@@ -414,7 +479,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y10P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 12 bit */
+@@ -423,7 +489,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y12P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 14 bit */
+@@ -432,7 +499,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y14P,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 16 bit */
+@@ -441,7 +509,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y16,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 10 bit as 16bpp */
+@@ -450,7 +519,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y10,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 12 bit as 16bpp */
+@@ -459,7 +529,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y12,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		/* 14 bit as 16bpp */
+@@ -468,7 +539,8 @@ static const struct bcm2835_isp_fmt supp
+ 		.bytesperline_align = 32,
+ 		.mmal_fmt	    = MMAL_ENCODING_Y14,
+ 		.size_multiplier_x2 = 2,
+-		.colorspace	    = V4L2_COLORSPACE_RAW,
++		.colorspace_mask    = V4L2_COLORSPACE_MASK_RAW,
++		.colorspace_default = V4L2_COLORSPACE_RAW,
+ 		.step_size	    = 2,
+ 	}, {
+ 		.fourcc		    = V4L2_META_FMT_BCM2835_ISP_STATS,
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -72,6 +72,7 @@ struct bcm2835_isp_q_data {
+ 	unsigned int width;
+ 	unsigned int height;
+ 	unsigned int sizeimage;
++	enum v4l2_colorspace colorspace;
+ 	const struct bcm2835_isp_fmt *fmt;
+ };
+ 
+@@ -311,6 +312,43 @@ static void mmal_buffer_cb(struct vchiq_
+ 		complete(&dev->frame_cmplt);
+ }
+ 
++struct colorspace_translation {
++	enum v4l2_colorspace v4l2_value;
++	u32 mmal_value;
++};
++
++static u32 translate_color_space(enum v4l2_colorspace color_space)
++{
++	static const struct colorspace_translation translations[] = {
++		{ V4L2_COLORSPACE_DEFAULT, MMAL_COLOR_SPACE_UNKNOWN },
++		{ V4L2_COLORSPACE_SMPTE170M, MMAL_COLOR_SPACE_ITUR_BT601 },
++		{ V4L2_COLORSPACE_SMPTE240M, MMAL_COLOR_SPACE_SMPTE240M },
++		{ V4L2_COLORSPACE_REC709, MMAL_COLOR_SPACE_ITUR_BT709 },
++		/* V4L2_COLORSPACE_BT878 unavailable */
++		{ V4L2_COLORSPACE_470_SYSTEM_M, MMAL_COLOR_SPACE_BT470_2_M },
++		{ V4L2_COLORSPACE_470_SYSTEM_BG, MMAL_COLOR_SPACE_BT470_2_BG },
++		{ V4L2_COLORSPACE_JPEG, MMAL_COLOR_SPACE_JPEG_JFIF },
++		/*
++		 * We don't have an encoding for SRGB as such, but VideoCore
++		 * will do the right thing if it gets "unknown".
++		 */
++		{ V4L2_COLORSPACE_SRGB, MMAL_COLOR_SPACE_UNKNOWN },
++		/* V4L2_COLORSPACE_OPRGB unavailable */
++		/* V4L2_COLORSPACE_BT2020 unavailable */
++		/* V4L2_COLORSPACE_RAW unavailable */
++		/* V4L2_COLORSPACE_DCI_P3 unavailable */
++	};
++
++	unsigned int i;
++
++	for (i = 0; i < ARRAY_SIZE(translations); i++) {
++		if (color_space == translations[i].v4l2_value)
++			return translations[i].mmal_value;
++	}
++
++	return MMAL_COLOR_SPACE_UNKNOWN;
++}
++
+ static void setup_mmal_port_format(struct bcm2835_isp_node *node,
+ 				   struct vchiq_mmal_port *port)
+ {
+@@ -324,6 +362,7 @@ static void setup_mmal_port_format(struc
+ 	port->es.video.crop.height = q_data->height;
+ 	port->es.video.crop.x = 0;
+ 	port->es.video.crop.y = 0;
++	port->es.video.color_space = translate_color_space(q_data->colorspace);
+ };
+ 
+ static int setup_mmal_port(struct bcm2835_isp_node *node)
+@@ -827,6 +866,9 @@ static int populate_qdata_fmt(struct v4l
+ 		/* All parameters should have been set correctly by try_fmt */
+ 		q_data->bytesperline = f->fmt.pix.bytesperline;
+ 		q_data->sizeimage = f->fmt.pix.sizeimage;
++
++		/* We must indicate which of the allowed colour spaces we have. */
++		q_data->colorspace = f->fmt.pix.colorspace;
+ 	} else {
+ 		v4l2_dbg(1, debug, &dev->v4l2_dev,
+ 			 "%s: Setting meta format for fmt: %08x, size %u\n",
+@@ -838,6 +880,9 @@ static int populate_qdata_fmt(struct v4l
+ 		q_data->height = 0;
+ 		q_data->bytesperline = 0;
+ 		q_data->sizeimage = f->fmt.meta.buffersize;
++
++		/* This won't mean anything for metadata, but may as well fill it in. */
++		q_data->colorspace = V4L2_COLORSPACE_DEFAULT;
+ 	}
+ 
+ 	v4l2_dbg(1, debug, &dev->v4l2_dev,
+@@ -901,7 +946,7 @@ static int bcm2835_isp_node_g_fmt(struct
+ 		f->fmt.pix.pixelformat = q_data->fmt->fourcc;
+ 		f->fmt.pix.bytesperline = q_data->bytesperline;
+ 		f->fmt.pix.sizeimage = q_data->sizeimage;
+-		f->fmt.pix.colorspace = q_data->fmt->colorspace;
++		f->fmt.pix.colorspace = q_data->colorspace;
+ 	}
+ 
+ 	return 0;
+@@ -968,13 +1013,29 @@ static int bcm2835_isp_node_try_fmt(stru
+ 		fmt = get_default_format(node);
+ 
+ 	if (!node_is_stats(node)) {
++		int is_rgb;
++
+ 		f->fmt.pix.width = max(min(f->fmt.pix.width, MAX_DIM),
+ 				       MIN_DIM);
+ 		f->fmt.pix.height = max(min(f->fmt.pix.height, MAX_DIM),
+ 					MIN_DIM);
+ 
+ 		f->fmt.pix.pixelformat = fmt->fourcc;
+-		f->fmt.pix.colorspace = fmt->colorspace;
++
++		/*
++		 * Fill in the actual colour space when the requested one was
++		 * not supported. This also catches the case when the "default"
++		 * colour space was requested (as that's never in the mask).
++		 */
++		if (!(V4L2_COLORSPACE_MASK(f->fmt.pix.colorspace) & fmt->colorspace_mask))
++			f->fmt.pix.colorspace = fmt->colorspace_default;
++		/* In all cases, we only support the defaults for these: */
++		f->fmt.pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(f->fmt.pix.colorspace);
++		f->fmt.pix.xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(f->fmt.pix.colorspace);
++		is_rgb = f->fmt.pix.colorspace == V4L2_COLORSPACE_SRGB;
++		f->fmt.pix.quantization = V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, f->fmt.pix.colorspace,
++									f->fmt.pix.ycbcr_enc);
++
+ 		f->fmt.pix.bytesperline = get_bytesperline(f->fmt.pix.width,
+ 							   fmt);
+ 		f->fmt.pix.field = V4L2_FIELD_NONE;
+@@ -1299,6 +1360,7 @@ static int register_node(struct bcm2835_
+ 					       node->q_data.width,
+ 					       node->q_data.height,
+ 					       node->q_data.fmt);
++	node->q_data.colorspace = node->q_data.fmt->colorspace_default;
+ 
+ 	queue->io_modes = VB2_MMAP | VB2_DMABUF;
+ 	queue->drv_priv = node;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0469-Hifiberry-DAC-ADC-Pro-fix-for-the-PLL-when-changing-.patch b/target/linux/bcm27xx/patches-5.10/950-0469-Hifiberry-DAC-ADC-Pro-fix-for-the-PLL-when-changing-.patch
new file mode 100644
index 0000000000..e3b7e30b2e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0469-Hifiberry-DAC-ADC-Pro-fix-for-the-PLL-when-changing-.patch
@@ -0,0 +1,56 @@
+From efe6cdae919bf4beffbef1e5691f2766182e0803 Mon Sep 17 00:00:00 2001
+From: Joerg Schambacher <joerg@i2audio.com>
+Date: Mon, 1 Feb 2021 16:53:46 +0100
+Subject: [PATCH] Hifiberry DAC+ADC Pro fix for the PLL when changing
+ sample rates
+
+Adds 2 msecs delay when switching between oscillators to allow
+correct PLL settling.
+Thanks to Clive Messer for the support!
+
+Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>
+---
+ sound/soc/bcm/hifiberry_dacplusadcpro.c | 14 ++++----------
+ 1 file changed, 4 insertions(+), 10 deletions(-)
+
+--- a/sound/soc/bcm/hifiberry_dacplusadcpro.c
++++ b/sound/soc/bcm/hifiberry_dacplusadcpro.c
+@@ -190,6 +190,7 @@ static void snd_rpi_hifiberry_dacplusadc
+ 				PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+ 		break;
+ 	}
++	usleep_range(2000, 2100);
+ }
+ 
+ static void snd_rpi_hifiberry_dacplusadcpro_clk_gpio(struct snd_soc_component *component)
+@@ -207,13 +208,6 @@ static bool snd_rpi_hifiberry_dacplusadc
+ 	return (!(sck & 0x40));
+ }
+ 
+-static bool snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(
+-	struct snd_soc_component *component)
+-{
+-	msleep(2);
+-	return snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+-}
+-
+ static bool snd_rpi_hifiberry_dacplusadcpro_is_pro_card(struct snd_soc_component *component)
+ {
+ 	bool isClk44EN, isClk48En, isNoClk;
+@@ -221,13 +215,13 @@ static bool snd_rpi_hifiberry_dacplusadc
+ 	snd_rpi_hifiberry_dacplusadcpro_clk_gpio(component);
+ 
+ 	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK44EN);
+-	isClk44EN = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++	isClk44EN = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+ 
+ 	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK);
+-	isNoClk = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++	isNoClk = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+ 
+ 	snd_rpi_hifiberry_dacplusadcpro_select_clk(component, HIFIBERRY_DACPRO_CLK48EN);
+-	isClk48En = snd_rpi_hifiberry_dacplusadcpro_is_sclk_sleep(component);
++	isClk48En = snd_rpi_hifiberry_dacplusadcpro_is_sclk(component);
+ 
+ 	return (isClk44EN && isClk48En && !isNoClk);
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0470-Fixed-picture-line-bug-in-all-ov9281-modes.patch b/target/linux/bcm27xx/patches-5.10/950-0470-Fixed-picture-line-bug-in-all-ov9281-modes.patch
new file mode 100644
index 0000000000..ecec2a9115
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0470-Fixed-picture-line-bug-in-all-ov9281-modes.patch
@@ -0,0 +1,38 @@
+From 02fe3934ba9b18cf48ad905626df8591cdfab8cf Mon Sep 17 00:00:00 2001
+From: Mathias Anhalt <mathiasanhalt@web.de>
+Date: Sun, 24 Jan 2021 15:15:01 +0100
+Subject: [PATCH] Fixed picture line bug in all ov9281 modes
+
+Signed-off-by: Mathias Anhalt <mathiasanhalt@web.de>
+---
+ drivers/media/i2c/ov9281.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -205,7 +205,7 @@ static const struct regval ov9281_common
+ };
+ 
+ static const struct regval ov9281_1280x800_regs[] = {
+-	{0x3778, 0x10},
++	{0x3778, 0x00},
+ 	{0x3800, 0x00},
+ 	{0x3801, 0x00},
+ 	{0x3802, 0x00},
+@@ -241,7 +241,7 @@ static const struct regval ov9281_1280x8
+ };
+ 
+ static const struct regval ov9281_1280x720_regs[] = {
+-	{0x3778, 0x10},
++	{0x3778, 0x00},
+ 	{0x3800, 0x00},
+ 	{0x3801, 0x00},
+ 	{0x3802, 0x00},
+@@ -277,6 +277,7 @@ static const struct regval ov9281_1280x7
+ };
+ 
+ static const struct regval ov9281_640x400_regs[] = {
++	{0x3778, 0x10},
+ 	{0x3800, 0x00},
+ 	{0x3801, 0x00},
+ 	{0x3802, 0x00},
diff --git a/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch b/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch
new file mode 100644
index 0000000000..ded3dce942
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0471-Added-hflip-and-vflip-controls-to-ov9281.patch
@@ -0,0 +1,112 @@
+From 6c7ebe661716fc23c52cd800a173e4675b10202a Mon Sep 17 00:00:00 2001
+From: Mathias Anhalt <mathiasanhalt@web.de>
+Date: Wed, 3 Feb 2021 20:34:09 +0100
+Subject: [PATCH] Added hflip and vflip controls to ov9281
+
+Signed-off-by: Mathias Anhalt <mathiasanhalt@web.de>
+---
+ drivers/media/i2c/ov9281.c | 58 +++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 57 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -40,6 +40,10 @@
+ #define CHIP_ID				0x9281
+ #define OV9281_REG_CHIP_ID		0x300a
+ 
++#define OV9281_REG_TIMING_FORMAT_1		0x3820
++#define OV9281_REG_TIMING_FORMAT_2		0x3821
++#define OV9281_FLIP_BIT				BIT(2)
++
+ #define OV9281_REG_CTRL_MODE		0x0100
+ #define OV9281_MODE_SW_STANDBY		0x0
+ #define OV9281_MODE_STREAMING		BIT(0)
+@@ -123,6 +127,8 @@ struct ov9281 {
+ 	struct v4l2_ctrl	*digi_gain;
+ 	struct v4l2_ctrl	*hblank;
+ 	struct v4l2_ctrl	*vblank;
++	struct v4l2_ctrl	*hflip;
++	struct v4l2_ctrl	*vflip;
+ 	struct v4l2_ctrl	*pixel_rate;
+ 	struct v4l2_ctrl	*test_pattern;
+ 	struct mutex		mutex;
+@@ -615,6 +621,42 @@ static int ov9281_enable_test_pattern(st
+ 				OV9281_REG_VALUE_08BIT, val);
+ }
+ 
++static int ov9281_set_ctrl_hflip(struct ov9281 *ov9281, int value)
++{
++	u32 current_val;
++	int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_2,
++					OV9281_REG_VALUE_08BIT, &current_val);
++	if (!ret) {
++		if (value)
++			current_val |= OV9281_FLIP_BIT;
++		else
++			current_val &= ~OV9281_FLIP_BIT;
++		return ov9281_write_reg(ov9281->client,
++						OV9281_REG_TIMING_FORMAT_2,
++						OV9281_REG_VALUE_08BIT,
++						current_val);
++	}
++	return ret;
++}
++
++static int ov9281_set_ctrl_vflip(struct ov9281 *ov9281, int value)
++{
++	u32 current_val;
++	int ret = ov9281_read_reg(ov9281->client, OV9281_REG_TIMING_FORMAT_1,
++					OV9281_REG_VALUE_08BIT, &current_val);
++	if (!ret) {
++		if (value)
++			current_val |= OV9281_FLIP_BIT;
++		else
++			current_val &= ~OV9281_FLIP_BIT;
++		return ov9281_write_reg(ov9281->client,
++						OV9281_REG_TIMING_FORMAT_1,
++						OV9281_REG_VALUE_08BIT,
++						current_val);
++	}
++	return ret;
++}
++
+ static const struct v4l2_rect *
+ __ov9281_get_pad_crop(struct ov9281 *ov9281, struct v4l2_subdev_pad_config *cfg,
+ 		      unsigned int pad, enum v4l2_subdev_format_whence which)
+@@ -933,6 +975,12 @@ static int ov9281_set_ctrl(struct v4l2_c
+ 		return 0;
+ 
+ 	switch (ctrl->id) {
++	case V4L2_CID_HFLIP:
++		ret = ov9281_set_ctrl_hflip(ov9281, ctrl->val);
++		break;
++	case V4L2_CID_VFLIP:
++		ret = ov9281_set_ctrl_vflip(ov9281, ctrl->val);
++		break;
+ 	case V4L2_CID_EXPOSURE:
+ 		/* 4 least significant bits of expsoure are fractional part */
+ 		ret = ov9281_write_reg(ov9281->client, OV9281_REG_EXPOSURE,
+@@ -981,7 +1029,7 @@ static int ov9281_initialize_controls(st
+ 
+ 	handler = &ov9281->ctrl_handler;
+ 	mode = ov9281->cur_mode;
+-	ret = v4l2_ctrl_handler_init(handler, 8);
++	ret = v4l2_ctrl_handler_init(handler, 9);
+ 	if (ret)
+ 		return ret;
+ 	handler->lock = &ov9281->mutex;
+@@ -1022,6 +1070,14 @@ static int ov9281_initialize_controls(st
+ 					      OV9281_GAIN_STEP,
+ 					      OV9281_GAIN_DEFAULT);
+ 
++	ov9281->vflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
++					  V4L2_CID_VFLIP,
++						0, 1, 1, 0);
++
++	ov9281->hflip = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops,
++					  V4L2_CID_HFLIP,
++						0, 1, 1, 0);
++
+ 	ov9281->test_pattern =
+ 		v4l2_ctrl_new_std_menu_items(handler, &ov9281_ctrl_ops,
+ 					     V4L2_CID_TEST_PATTERN,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0472-gpio-fsm-Rename-num-soft-gpios-to-avoid-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0472-gpio-fsm-Rename-num-soft-gpios-to-avoid-warning.patch
new file mode 100644
index 0000000000..5b5e71b250
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0472-gpio-fsm-Rename-num-soft-gpios-to-avoid-warning.patch
@@ -0,0 +1,32 @@
+From f55b35f2dbd1ab60fe8d59c56ae1cbad2f3e67ab Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 15 Feb 2021 10:25:35 +0000
+Subject: [PATCH] gpio-fsm: Rename 'num-soft-gpios' to avoid warning
+
+As of 5.10, the Device Tree parser warns about properties that look
+like references to "suppliers" of various services. "num-soft-gpios"
+resembles a declaration of a GPIO called "num-soft", causing the value
+to be interpreted as a phandle, the owner of which is checked for a
+"#gpio-cells" property.
+
+To avoid this warning, rename the gpio-fsm property to "num-swgpios".
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/gpio-fsm.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpio/gpio-fsm.c
++++ b/drivers/gpio/gpio-fsm.c
+@@ -866,8 +866,9 @@ static int gpio_fsm_probe(struct platfor
+ 		[SYM_SHUTDOWN] = "shutdown_state",
+ 	};
+ 
+-	if (of_property_read_u32(np, "num-soft-gpios", &num_soft_gpios)) {
+-		dev_err(dev, "missing 'num-soft-gpios' property\n");
++	if (of_property_read_u32(np, "num-swgpios", &num_soft_gpios) &&
++	    of_property_read_u32(np, "num-soft-gpios", &num_soft_gpios)) {
++		dev_err(dev, "missing 'num-swgpios' property\n");
+ 		return -EINVAL;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0473-overlays-Rename-gpio-fsm-property-num-soft-gpios.patch b/target/linux/bcm27xx/patches-5.10/950-0473-overlays-Rename-gpio-fsm-property-num-soft-gpios.patch
new file mode 100644
index 0000000000..143f70a0f0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0473-overlays-Rename-gpio-fsm-property-num-soft-gpios.patch
@@ -0,0 +1,38 @@
+From 89a7202785673e8bcef072ebcbe1eb0599b8ba88 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 15 Feb 2021 10:32:18 +0000
+Subject: [PATCH] overlays: Rename gpio-fsm property num-soft-gpios
+
+The gpio-fsm property "num-soft-gpios" triggers a kernel DT checker
+that warns about the lack of #gpio-cells on a random node with the
+phandle that just happens to match the number of soft GPIOs. Rename
+the property to "num-swgpios" to avoid the warning.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/fsm-demo-overlay.dts  | 2 +-
+ arch/arm/boot/dts/overlays/ghost-amp-overlay.dts | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
++++ b/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
+@@ -22,7 +22,7 @@
+ 				debug = <0>;
+ 				gpio-controller;
+ 				#gpio-cells = <2>;
+-				num-soft-gpios = <1>;
++				num-swgpios = <1>;
+ 				gpio-line-names = "button2";
+ 				input-gpios  = <&gpio 6 1>;  // BUTTON1 (active-low)
+ 				output-gpios = <&gpio 7 0>,  // RED
+--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -58,7 +58,7 @@
+ 				debug = <0>;
+ 				gpio-controller;
+ 				#gpio-cells = <2>;
+-				num-soft-gpios = <1>;
++				num-swgpios = <1>;
+ 				gpio-line-names = "enable";
+ 				input-gpios  = <&gpio 5 1>;  // FAULT (active low)
+ 				output-gpios = <&gpio 22 0>, // RELAY1
diff --git a/target/linux/bcm27xx/patches-5.10/950-0474-drm-fix-HDR-static-metadata-type-field-numbering.patch b/target/linux/bcm27xx/patches-5.10/950-0474-drm-fix-HDR-static-metadata-type-field-numbering.patch
new file mode 100644
index 0000000000..10374f7f3b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0474-drm-fix-HDR-static-metadata-type-field-numbering.patch
@@ -0,0 +1,31 @@
+From 9b1a01165ec1821802d2ec2090f3667e9faf9e79 Mon Sep 17 00:00:00 2001
+From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
+Date: Wed, 27 Nov 2019 14:42:35 +0000
+Subject: [PATCH] drm: fix HDR static metadata type field numbering
+
+According to CTA-861 specification, HDR static metadata data block allows a
+sink to indicate which HDR metadata types it supports by setting the SM_0 to
+SM_7 bits. Currently, only Static Metadata Type 1 is supported and this is
+indicated by setting the SM_0 bit to 1.
+
+However, the connector->hdr_sink_metadata.hdmi_type1.metadata_type is always
+0, because hdr_metadata_type() in drm_edid.c checks the wrong bit.
+
+This patch corrects the HDMI_STATIC_METADATA_TYPE1 bit position.
+
+Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
+---
+ include/linux/hdmi.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/include/linux/hdmi.h
++++ b/include/linux/hdmi.h
+@@ -156,7 +156,7 @@ enum hdmi_content_type {
+ };
+ 
+ enum hdmi_metadata_type {
+-	HDMI_STATIC_METADATA_TYPE1 = 1,
++	HDMI_STATIC_METADATA_TYPE1 = 0,
+ };
+ 
+ enum hdmi_eotf {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0475-drm-vc4-Add-HDR-metadata-property-to-the-VC5-HDMI-co.patch b/target/linux/bcm27xx/patches-5.10/950-0475-drm-vc4-Add-HDR-metadata-property-to-the-VC5-HDMI-co.patch
new file mode 100644
index 0000000000..3a4d39b612
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0475-drm-vc4-Add-HDR-metadata-property-to-the-VC5-HDMI-co.patch
@@ -0,0 +1,99 @@
+From 82a5aa1df1b04efef46c7be82a7d71ea5300ce92 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 2 Dec 2020 18:36:24 +0000
+Subject: [PATCH] drm/vc4: Add HDR metadata property to the VC5 HDMI
+ connectors
+
+Now that we can export deeper colour depths, add in the signalling
+for HDR metadata.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 28 ++++++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  3 +++
+ 2 files changed, 31 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -309,6 +309,10 @@ static int vc4_hdmi_connector_init(struc
+ 	connector->doublescan_allowed = 0;
+ 	connector->stereo_allowed = 1;
+ 
++	if (vc4_hdmi->variant->supports_hdr)
++		drm_object_attach_property(&connector->base,
++			connector->dev->mode_config.hdr_output_metadata_property, 0);
++
+ 	drm_connector_attach_encoder(connector, encoder);
+ 
+ 	return 0;
+@@ -448,6 +452,25 @@ static void vc4_hdmi_set_audio_infoframe
+ 	vc4_hdmi_write_infoframe(encoder, &frame);
+ }
+ 
++static void vc4_hdmi_set_hdr_infoframe(struct drm_encoder *encoder)
++{
++	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++	struct drm_connector *connector = &vc4_hdmi->connector;
++	struct drm_connector_state *conn_state = connector->state;
++	union hdmi_infoframe frame;
++
++	if (!vc4_hdmi->variant->supports_hdr)
++		return;
++
++	if (!conn_state->hdr_output_metadata)
++		return;
++
++	if (drm_hdmi_infoframe_set_hdr_metadata(&frame.drm, conn_state))
++		return;
++
++	vc4_hdmi_write_infoframe(encoder, &frame);
++}
++
+ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+@@ -460,6 +483,8 @@ static void vc4_hdmi_set_infoframes(stru
+ 	 */
+ 	if (vc4_hdmi->audio.streaming)
+ 		vc4_hdmi_set_audio_infoframe(encoder);
++
++	vc4_hdmi_set_hdr_infoframe(encoder);
+ }
+ 
+ static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
+@@ -2282,6 +2307,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
+ 	.channel_map		= vc4_hdmi_channel_map,
++	.supports_hdr		= false,
+ };
+ 
+ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
+@@ -2309,6 +2335,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
+ 	.channel_map		= vc5_hdmi_channel_map,
++	.supports_hdr		= true,
+ };
+ 
+ static const struct vc4_hdmi_variant bcm2711_hdmi1_variant = {
+@@ -2336,6 +2363,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
+ 	.channel_map		= vc5_hdmi_channel_map,
++	.supports_hdr		= true,
+ };
+ 
+ static const struct of_device_id vc4_hdmi_dt_match[] = {
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -99,6 +99,9 @@ struct vc4_hdmi_variant {
+ 
+ 	/* Callback to get channel map */
+ 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
++
++	/* Enables HDR metadata */
++	bool supports_hdr;
+ };
+ 
+ /* HDMI audio information */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0476-drm-vc4-Add-connector-check-to-trigger-mode_change-w.patch b/target/linux/bcm27xx/patches-5.10/950-0476-drm-vc4-Add-connector-check-to-trigger-mode_change-w.patch
new file mode 100644
index 0000000000..7a200aca3d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0476-drm-vc4-Add-connector-check-to-trigger-mode_change-w.patch
@@ -0,0 +1,67 @@
+From c8a76985213abda828a2098c3d6ce8a49b5f9766 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Fri, 5 Feb 2021 14:07:12 +0000
+Subject: [PATCH] drm/vc4: Add connector check to trigger mode_change
+ when hdr metadata changes
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 40 ++++++++++++++++++++++++++++++++++
+ 1 file changed, 40 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -223,6 +223,45 @@ static int vc4_hdmi_connector_get_modes(
+ 	return ret;
+ }
+ 
++static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
++			       const struct drm_connector_state *new_state)
++{
++	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
++	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
++
++	if (!old_blob || !new_blob)
++		return old_blob == new_blob;
++
++	if (old_blob->length != new_blob->length)
++		return false;
++
++	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
++}
++
++static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
++					  struct drm_atomic_state *state)
++{
++	struct drm_connector_state *old_state =
++		drm_atomic_get_old_connector_state(state, connector);
++	struct drm_connector_state *new_state =
++		drm_atomic_get_new_connector_state(state, connector);
++	struct drm_crtc *crtc = new_state->crtc;
++	struct drm_crtc_state *crtc_state;
++
++	if (!crtc)
++		return 0;
++
++	if (!hdr_metadata_equal(old_state, new_state)) {
++		crtc_state = drm_atomic_get_crtc_state(state, crtc);
++		if (IS_ERR(crtc_state))
++			return PTR_ERR(crtc_state);
++
++		crtc_state->mode_changed = true;
++	}
++
++	return 0;
++}
++
+ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
+ {
+ 	struct vc4_hdmi_connector_state *old_state =
+@@ -272,6 +311,7 @@ static const struct drm_connector_funcs
+ 
+ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs = {
+ 	.get_modes = vc4_hdmi_connector_get_modes,
++	.atomic_check = vc4_hdmi_connector_atomic_check,
+ };
+ 
+ static int vc4_hdmi_connector_init(struct drm_device *dev,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0477-staging-rpivid-Fix-crash-when-CMA-alloc-fails.patch b/target/linux/bcm27xx/patches-5.10/950-0477-staging-rpivid-Fix-crash-when-CMA-alloc-fails.patch
new file mode 100644
index 0000000000..e47db9a43d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0477-staging-rpivid-Fix-crash-when-CMA-alloc-fails.patch
@@ -0,0 +1,118 @@
+From 8ae4692aefa338ae3fff89c513fddd0400ea7a2a Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Mon, 8 Feb 2021 16:01:37 +0000
+Subject: [PATCH] staging: rpivid: Fix crash when CMA alloc fails
+
+If realloc to increase coeff size fails then attempt to re-allocate
+the original size.  If that also fails then flag a fatal error to abort
+all further decode.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.h      |  3 ++
+ drivers/staging/media/rpivid/rpivid_h265.c | 44 +++++++++++++++++++++-
+ 2 files changed, 45 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -88,6 +88,9 @@ struct rpivid_ctx {
+ 	struct v4l2_pix_format		src_fmt;
+ 	struct v4l2_pix_format		dst_fmt;
+ 	int dst_fmt_set;
++	// fatal_err is set if an error has occurred s.t. decode cannot
++	// continue (such as running out of CMA)
++	int fatal_err;
+ 
+ 	struct v4l2_ctrl_handler	hdl;
+ 	struct v4l2_ctrl		**ctrls;
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -73,10 +73,18 @@ static void gptr_free(struct rpivid_dev
+ 	gptr->attrs = 0;
+ }
+ 
+-/* Realloc but do not copy */
++/* Realloc but do not copy
++ *
++ * Frees then allocs.
++ * If the alloc fails then it attempts to re-allocote the old size
++ * On error then check gptr->ptr to determine if anything is currently
++ * allocated.
++ */
+ static int gptr_realloc_new(struct rpivid_dev * const dev,
+ 			    struct rpivid_gptr * const gptr, size_t size)
+ {
++	const size_t old_size = gptr->size;
++
+ 	if (size == gptr->size)
+ 		return 0;
+ 
+@@ -88,7 +96,21 @@ static int gptr_realloc_new(struct rpivi
+ 	gptr->size = size;
+ 	gptr->ptr = dma_alloc_attrs(dev->dev, gptr->size,
+ 				    &gptr->addr, GFP_KERNEL, gptr->attrs);
+-	return gptr->ptr ? 0 : -ENOMEM;
++
++	if (!gptr->ptr) {
++		gptr->addr = 0;
++		gptr->size = old_size;
++		gptr->ptr = dma_alloc_attrs(dev->dev, gptr->size,
++					    &gptr->addr, GFP_KERNEL, gptr->attrs);
++		if (!gptr->ptr) {
++			gptr->size = 0;
++			gptr->addr = 0;
++			gptr->attrs = 0;
++		}
++		return -ENOMEM;
++	}
++
++	return 0;
+ }
+ 
+ /* floor(log2(x)) */
+@@ -2020,6 +2042,12 @@ static void phase1_thread(struct rpivid_
+ 	return;
+ 
+ fail:
++	if (!pu_gptr->addr || !coeff_gptr->addr) {
++		v4l2_err(&dev->v4l2_dev,
++			 "%s: Fatal: failed to reclaim old alloc\n",
++			 __func__);
++		ctx->fatal_err = 1;
++	}
+ 	dec_env_delete(de);
+ 	xtrace_fin(dev, de);
+ 	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+@@ -2093,6 +2121,9 @@ static void phase1_claimed(struct rpivid
+ 
+ 	xtrace_in(dev, de);
+ 
++	if (ctx->fatal_err)
++		goto fail;
++
+ 	de->pu_base_vc = pu_gptr->addr;
+ 	de->pu_stride =
+ 		ALIGN_DOWN(pu_gptr->size / de->pic_height_in_ctbs_y, 64);
+@@ -2116,6 +2147,14 @@ static void phase1_claimed(struct rpivid
+ 	apb_write_vc_addr_final(dev, RPI_CFBASE, de->cmd_copy_gptr->addr);
+ 
+ 	xtrace_ok(dev, de);
++	return;
++
++fail:
++	dec_env_delete(de);
++	xtrace_fin(dev, de);
++	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++					 VB2_BUF_STATE_ERROR);
++	xtrace_fail(dev, de);
+ }
+ 
+ static void dec_state_delete(struct rpivid_ctx *const ctx)
+@@ -2186,6 +2225,7 @@ static int rpivid_h265_start(struct rpiv
+ 	v4l2_info(&dev->v4l2_dev, "%s: (%dx%d)\n", __func__,
+ 		  ctx->dst_fmt.width, ctx->dst_fmt.height);
+ 
++	ctx->fatal_err = 0;
+ 	ctx->dec0 = NULL;
+ 	ctx->state = kzalloc(sizeof(*ctx->state), GFP_KERNEL);
+ 	if (!ctx->state) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0478-dt-Add-option-for-dpi-without-DE-and-PCLK-for-VGA666.patch b/target/linux/bcm27xx/patches-5.10/950-0478-dt-Add-option-for-dpi-without-DE-and-PCLK-for-VGA666.patch
new file mode 100644
index 0000000000..9b687f2f30
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0478-dt-Add-option-for-dpi-without-DE-and-PCLK-for-VGA666.patch
@@ -0,0 +1,30 @@
+From dad204699d870a86849a635ebec84f3259923a0e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 4 Feb 2021 14:23:58 +0000
+Subject: [PATCH] dt: Add option for dpi without DE and PCLK (for
+ VGA666)
+
+VGA666 doesn't use the DE or PCLK signals, therefore there is
+no point in claiming their use. It's also then possible to
+use GPIOs 0&1 for DDC to read the EDID from the display.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm270x.dtsi | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm270x.dtsi
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -170,6 +170,12 @@
+ 			     20 21>;
+ 		brcm,function = <BCM2835_FSEL_ALT2>;
+ 	};
++	dpi_18bit_gpio2: dpi_18bit_gpio2 {
++		brcm,pins = <2 3 4 5 6 7 8 9 10 11
++			     12 13 14 15 16 17 18 19
++			     20 21>;
++		brcm,function = <BCM2835_FSEL_ALT2>;
++	};
+ };
+ 
+ &uart0 {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0479-dtoverlays-Add-an-overlay-for-the-VGA666-when-used-w.patch b/target/linux/bcm27xx/patches-5.10/950-0479-dtoverlays-Add-an-overlay-for-the-VGA666-when-used-w.patch
new file mode 100644
index 0000000000..0bfe1c9e30
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0479-dtoverlays-Add-an-overlay-for-the-VGA666-when-used-w.patch
@@ -0,0 +1,153 @@
+From 99f2ab0dad947049e0fa62e88c1e4c1feb7ab379 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 4 Feb 2021 14:41:10 +0000
+Subject: [PATCH] dtoverlays: Add an overlay for the VGA666 when used
+ with vc4-kms-v3d
+
+Includes optional use of GPIOs 0&1 / BSC0 for DDC to read the EDID
+from the display.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |   1 +
+ arch/arm/boot/dts/overlays/README             |  10 ++
+ .../dts/overlays/vc4-kms-vga666-overlay.dts   | 100 ++++++++++++++++++
+ 3 files changed, 111 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-vga666-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -211,6 +211,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	vc4-kms-kippah-7inch.dtbo \
+ 	vc4-kms-v3d.dtbo \
+ 	vc4-kms-v3d-pi4.dtbo \
++	vc4-kms-vga666.dtbo \
+ 	vga666.dtbo \
+ 	w1-gpio.dtbo \
+ 	w1-gpio-pullup.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3120,10 +3120,20 @@ Params: cma-512                 CMA is 5
+                                 outputs)
+ 
+ 
++Name:   vc4-kms-vga666
++Info:   Enable the VGA666 (resistor ladder ADC) for the vc4-kms-v3d driver.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-vga666,<param>
++Params: ddc                     Enables GPIOs 0&1 as the I2C to read the EDID
++                                from the display. NB These are NOT 5V tolerant
++                                GPIOs, therefore level shifters are required.
++
++
+ Name:   vga666
+ Info:   Overlay for the Fen Logic VGA666 board
+         This uses GPIOs 2-21 (so no I2C), and activates the output 2-3 seconds
+         after the kernel has started.
++        NOT for use with vc4-kms-v3d.
+ Load:   dtoverlay=vga666
+ Params: <None>
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-vga666-overlay.dts
+@@ -0,0 +1,100 @@
++/*
++ * vc4-kms-vga666-overlay.dts
++ * Configures a FenLogic or similar VGA666 DPI adapter when using the
++ * vc4-kms-v3d driver.
++ * If a suitable I2C level shifter is connected to GPIOs 0&1 and the VGA
++ * ID1/SDA (pin 12) and ID3/SCL (pin 15) lines, then there is the option to
++ * enable reading the EDID from the display.
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			vga_connector: vga_connector {
++				compatible = "vga-connector";
++				label = "vga";
++
++				port {
++					vga_con_in: endpoint {
++						remote-endpoint = <&vga666_out>;
++					};
++				};
++			};
++
++			vga_dac {
++				compatible = "dumb-vga-dac";
++
++				ports {
++					#address-cells = <1>;
++					#size-cells = <0>;
++
++					port@0 {
++						reg = <0>;
++
++						vga666_in: endpoint {
++							remote-endpoint = <&dpi_out>;
++						};
++					};
++
++					port@1 {
++						reg = <1>;
++
++						vga666_out: endpoint {
++							remote-endpoint = <&vga_con_in>;
++						};
++					};
++				};
++			};
++
++		};
++	};
++
++	fragment@1 {
++		target = <&dpi>;
++		__overlay__  {
++			status = "okay";
++
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi_18bit_gpio2>;
++
++			port {
++				dpi_out: endpoint@0 {
++					remote-endpoint = <&vga666_in>;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&vga_connector>;
++		__dormant__  {
++			ddc-i2c-bus = <&i2c_vc>;
++		};
++	};
++
++	fragment@3 {
++		target = <&i2c0if>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
++	__overrides__ {
++		ddc = <0>,"=2", <0>,"=3", <0>,"=4";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0480-drm-vc4-Change-the-default-DPI-format-to-being-18bpp.patch b/target/linux/bcm27xx/patches-5.10/950-0480-drm-vc4-Change-the-default-DPI-format-to-being-18bpp.patch
new file mode 100644
index 0000000000..b7aa16ee40
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0480-drm-vc4-Change-the-default-DPI-format-to-being-18bpp.patch
@@ -0,0 +1,34 @@
+From 9a5326f4c3a3a066802886f1e09216a1894c943d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 12 Feb 2021 17:31:37 +0000
+Subject: [PATCH] drm/vc4: Change the default DPI format to being
+ 18bpp, not 24.
+
+DPI hasn't really been used up until now, so the default has
+been meaningless.
+In theory we should be able to pass the desired format for the
+adjacent bridge chip through, but framework seems to be missing
+for that.
+
+As the main device to use DPI is the VGA666 or Adafruit Kippah,
+both of which use RGB666, change the default to being RGB666 instead
+of RGB888.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_dpi.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dpi.c
++++ b/drivers/gpu/drm/vc4/vc4_dpi.c
+@@ -178,8 +178,8 @@ static void vc4_dpi_encoder_enable(struc
+ 			break;
+ 		}
+ 	} else {
+-		/* Default to 24bit if no connector found. */
+-		dpi_c |= VC4_SET_FIELD(DPI_FORMAT_24BIT_888_RGB, DPI_FORMAT);
++		/* Default to 18bit if no connector found. */
++		dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1, DPI_FORMAT);
+ 	}
+ 
+ 	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch b/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch
new file mode 100644
index 0000000000..c930e0d6f8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0481-gpio-fsm-Show-state-info-in-sys-class-gpio-fsm.patch
@@ -0,0 +1,184 @@
+From 1e50027d42006cbc42957b5053caf96ee52c7f8c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Sat, 17 Oct 2020 15:42:54 +0100
+Subject: [PATCH] gpio-fsm: Show state info in /sys/class/gpio-fsm
+
+Add gpio-fsm sysfs entries under /sys/class/gpio-fsm. For each state
+machine show the current state, which state (if any) will be entered
+after a delay, and the current value of that delay.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/gpio-fsm.c | 112 ++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 108 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpio/gpio-fsm.c
++++ b/drivers/gpio/gpio-fsm.c
+@@ -20,6 +20,7 @@
+ #include <linux/interrupt.h>
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
++#include <linux/sysfs.h>
+ 
+ #include <dt-bindings/gpio/gpio-fsm.h>
+ 
+@@ -120,6 +121,7 @@ struct gpio_fsm {
+ 	struct fsm_state *current_state;
+ 	struct fsm_state *next_state;
+ 	struct fsm_state *delay_target_state;
++	unsigned int delay_jiffies;
+ 	int delay_ms;
+ 	unsigned int debug;
+ 	bool shutting_down;
+@@ -364,9 +366,10 @@ static void gpio_fsm_enter_state(struct
+ 			jiffies + msecs_to_jiffies(state->shutdown_ms);
+ 
+ 		if (gf->shutting_down) {
++			gf->delay_jiffies = gf->shutdown_jiffies;
+ 			gf->delay_target_state = state->shutdown_target;
+ 			gf->delay_ms = state->shutdown_ms;
+-			mod_timer(&gf->timer, gf->shutdown_jiffies);
++			mod_timer(&gf->timer, gf->delay_jiffies);
+ 		}
+ 	}
+ 
+@@ -421,9 +424,10 @@ static void gpio_fsm_enter_state(struct
+ 	// 6. Schedule a timer callback if delay_target
+ 	if (state->delay_target) {
+ 		gf->delay_target_state = state->delay_target;
++		gf->delay_jiffies = jiffies +
++			msecs_to_jiffies(state->delay_ms);
+ 		gf->delay_ms = state->delay_ms;
+-		mod_timer(&gf->timer,
+-			  jiffies + msecs_to_jiffies(state->delay_ms));
++		mod_timer(&gf->timer, gf->delay_jiffies);
+ 	}
+ }
+ 
+@@ -847,10 +851,81 @@ static int resolve_sym_to_state(struct g
+ 	return 0;
+ }
+ 
++
++/*
++ * /sys/class/gpio-fsm/<fsm-name>/
++ *   /state ... the current state
++ */
++
++static ssize_t state_show(struct device *dev,
++			  struct device_attribute *attr, char *buf)
++{
++	const struct gpio_fsm *gf = dev_get_drvdata(dev);
++
++	return sprintf(buf, "%s\n", gf->current_state->name);
++}
++static DEVICE_ATTR_RO(state);
++
++static ssize_t delay_state_show(struct device *dev,
++			  struct device_attribute *attr, char *buf)
++{
++	const struct gpio_fsm *gf = dev_get_drvdata(dev);
++
++	return sprintf(buf, "%s\n",
++		       gf->delay_target_state ? gf->delay_target_state->name :
++		       "-");
++}
++
++static DEVICE_ATTR_RO(delay_state);
++
++static ssize_t delay_ms_show(struct device *dev,
++			     struct device_attribute *attr, char *buf)
++{
++	const struct gpio_fsm *gf = dev_get_drvdata(dev);
++	int jiffies_left;
++
++	jiffies_left = gf->delay_jiffies - jiffies;
++	return sprintf(buf,
++		       gf->delay_target_state ? "%u\n" : "-\n",
++		       jiffies_to_msecs(jiffies_left));
++}
++static DEVICE_ATTR_RO(delay_ms);
++
++static struct attribute *gpio_fsm_attrs[] = {
++	&dev_attr_state.attr,
++	&dev_attr_delay_state.attr,
++	&dev_attr_delay_ms.attr,
++	NULL,
++};
++
++static const struct attribute_group gpio_fsm_group = {
++	.attrs = gpio_fsm_attrs,
++	//.is_visible = gpio_is_visible,
++};
++
++static const struct attribute_group *gpio_fsm_groups[] = {
++	&gpio_fsm_group,
++	NULL
++};
++
++static struct attribute *gpio_fsm_class_attrs[] = {
++	// There are no top-level attributes
++	NULL,
++};
++ATTRIBUTE_GROUPS(gpio_fsm_class);
++
++static struct class gpio_fsm_class = {
++	.name =		MODULE_NAME,
++	.owner =	THIS_MODULE,
++
++	.class_groups = gpio_fsm_class_groups,
++};
++
+ static int gpio_fsm_probe(struct platform_device *pdev)
+ {
+ 	struct input_gpio_state *inp_state;
+ 	struct device *dev = &pdev->dev;
++	struct device *sysfs_dev;
+ 	struct device_node *np = dev->of_node;
+ 	struct device_node *cp;
+ 	struct gpio_fsm *gf;
+@@ -1029,6 +1104,13 @@ static int gpio_fsm_probe(struct platfor
+ 
+ 	platform_set_drvdata(pdev, gf);
+ 
++	sysfs_dev = device_create_with_groups(&gpio_fsm_class, dev,
++					      MKDEV(0, 0), gf,
++					      gpio_fsm_groups,
++					      "%s", np->name);
++	if (IS_ERR(sysfs_dev))
++		dev_err(gf->dev, "Error creating sysfs entry\n");
++
+ 	if (gf->debug)
+ 		dev_info(gf->dev, "Start -> %s\n", gf->start_state->name);
+ 
+@@ -1097,7 +1179,29 @@ static struct platform_driver gpio_fsm_d
+ 	.remove = gpio_fsm_remove,
+ 	.shutdown = gpio_fsm_shutdown,
+ };
+-module_platform_driver(gpio_fsm_driver);
++
++static int gpio_fsm_init(void)
++{
++	int ret;
++
++	ret = class_register(&gpio_fsm_class);
++	if (ret)
++		return ret;
++
++	ret = platform_driver_register(&gpio_fsm_driver);
++	if (ret)
++		class_unregister(&gpio_fsm_class);
++
++	return ret;
++}
++module_init(gpio_fsm_init);
++
++static void gpio_fsm_exit(void)
++{
++	platform_driver_unregister(&gpio_fsm_driver);
++	class_unregister(&gpio_fsm_class);
++}
++module_exit(gpio_fsm_exit);
+ 
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0482-gpio-fsm-Fix-shutdown-timeout-handling.patch b/target/linux/bcm27xx/patches-5.10/950-0482-gpio-fsm-Fix-shutdown-timeout-handling.patch
new file mode 100644
index 0000000000..e774c100c4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0482-gpio-fsm-Fix-shutdown-timeout-handling.patch
@@ -0,0 +1,26 @@
+From a8862588c1ebbcb49b0650707020910270a81f07 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 17 Feb 2021 09:21:30 +0000
+Subject: [PATCH] gpio-fsm: Fix shutdown timeout handling
+
+The driver is intended to jump directly to a shutdown state in the
+event of a timeout during shutdown, but the sense of the test was
+inverted.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/gpio/gpio-fsm.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpio/gpio-fsm.c
++++ b/drivers/gpio/gpio-fsm.c
+@@ -1142,7 +1142,8 @@ static int gpio_fsm_remove(struct platfo
+ 				   gf->current_state->shutdown_target ==
+ 				   gf->current_state,
+ 				   msecs_to_jiffies(gf->shutdown_timeout_ms));
+-		if (gf->current_state->shutdown_target == gf->current_state)
++		/* On failure to reach a shutdown state, jump to one */
++		if (gf->current_state->shutdown_target != gf->current_state)
+ 			gpio_fsm_enter_state(gf, gf->shutdown_state);
+ 	}
+ 	cancel_work_sync(&gf->work);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0483-overlays-fsm-demo-Ensure-all-LEDs-are-turned-off.patch b/target/linux/bcm27xx/patches-5.10/950-0483-overlays-fsm-demo-Ensure-all-LEDs-are-turned-off.patch
new file mode 100644
index 0000000000..9bc5e81223
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0483-overlays-fsm-demo-Ensure-all-LEDs-are-turned-off.patch
@@ -0,0 +1,26 @@
+From 9884944068a577ef556d544ff7f57e4433aa995b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 17 Feb 2021 09:29:26 +0000
+Subject: [PATCH] overlays: fsm-demo: Ensure all LEDs are turned off
+
+If the shutdown process is delayed enough to trigger the shutdown
+timeout then one or more states in the shutdown sequence might be
+skipped. Ensure that all LEDs are turned off regardless by explicitly
+doing so in the shutdown state, as an example of good practices.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/fsm-demo-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
++++ b/arch/arm/boot/dts/overlays/fsm-demo-overlay.dts
+@@ -92,7 +92,7 @@
+ 
+ 				shutdown4 {
+ 					shutdown_state;
+-					set = <RED 0>;
++					set = <RED 0>, <AMBER 0>, <GREEN 0>;
+ 				};
+ 			};
+ 	       };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0484-media-i2c-imx477-Remove-auto-frame-length-adjusting.patch b/target/linux/bcm27xx/patches-5.10/950-0484-media-i2c-imx477-Remove-auto-frame-length-adjusting.patch
new file mode 100644
index 0000000000..07c929ac49
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0484-media-i2c-imx477-Remove-auto-frame-length-adjusting.patch
@@ -0,0 +1,142 @@
+From d5517d71c77ba67cb9dc1985a649ff11017eca0e Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 10 Feb 2021 10:18:53 +0000
+Subject: [PATCH] media: i2c: imx477: Remove auto frame length
+ adjusting
+
+The V4L2_CID_EXPOSURE_AUTO_PRIORITY was used to let the sensor control
+frame length (effectively framerate) based on the requested exposure
+time requested. Remove this feature as it is never used, and goes
+against how V4L2 likes to handle exposure and vblank controls.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 83 +++-----------------------------------
+ 1 file changed, 6 insertions(+), 77 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1082,8 +1082,6 @@ struct imx477 {
+ 	struct v4l2_ctrl *hflip;
+ 	struct v4l2_ctrl *vblank;
+ 	struct v4l2_ctrl *hblank;
+-	/* This ctrl allows automatic variable framerate */
+-	struct v4l2_ctrl *exposure_auto;
+ 
+ 	/* Current mode */
+ 	const struct imx477_mode *mode;
+@@ -1280,66 +1278,14 @@ static int imx477_open(struct v4l2_subde
+ 	return 0;
+ }
+ 
+-static int imx477_set_exposure(struct imx477 *imx477, unsigned int val)
+-{
+-	int ret;
+-
+-	ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
+-			       IMX477_REG_VALUE_16BIT, val);
+-
+-	/* Setup the frame length in the case of auto framerate mode. */
+-	if (imx477->exposure_auto->val) {
+-		unsigned int frame_length, frame_length_max, frame_length_min;
+-
+-		frame_length_min = imx477->vblank->minimum +
+-				   imx477->mode->height;
+-		frame_length_max = imx477->vblank->maximum +
+-				   imx477->mode->height;
+-		frame_length = max(frame_length_min,
+-				   val + IMX477_EXPOSURE_OFFSET);
+-		frame_length = min(frame_length_max, frame_length);
+-		ret += imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH,
+-					IMX477_REG_VALUE_16BIT, frame_length);
+-	}
+-
+-	return ret;
+-}
+-
+ static void imx477_adjust_exposure_range(struct imx477 *imx477,
+ 					 struct v4l2_ctrl *ctrl)
+ {
+ 	int exposure_max, exposure_def;
+ 
+-	if (ctrl->id == V4L2_CID_VBLANK || !ctrl->val) {
+-		/*
+-		 * Either VBLANK has been changed or auto framerate
+-		 * adjusting has been disabled. Honour the VBLANK limits
+-		 * when setting exposure.
+-		 */
+-		exposure_max = imx477->mode->height + imx477->vblank->val -
+-						      IMX477_EXPOSURE_OFFSET;
+-
+-		if (ctrl->id == V4L2_CID_EXPOSURE_AUTO_PRIORITY) {
+-			/*
+-			 * Allow VBLANK adjustments since the driver is not
+-			 * handling frame length control automatically.
+-			 */
+-			__v4l2_ctrl_grab(imx477->vblank, false);
+-		}
+-	} else {
+-		/*
+-		 * Auto framerate adjusting has been enabled. VBLANK
+-		 * ctrl has been disabled and exposure can ramp up
+-		 * to the maximum allowable value.
+-		 */
+-		exposure_max = IMX477_EXPOSURE_MAX;
+-		/*
+-		 * Do not allow VBLANK adjustments if the driver is
+-		 * handling it frame length control automatically.
+-		 */
+-		__v4l2_ctrl_grab(imx477->vblank, true);
+-	}
+-
++	/* Honour the VBLANK limits when setting exposure. */
++	exposure_max = imx477->mode->height + imx477->vblank->val -
++						IMX477_EXPOSURE_OFFSET;
+ 	exposure_def = min(exposure_max, imx477->exposure->val);
+ 	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
+ 				 exposure_max, imx477->exposure->step,
+@@ -1353,14 +1299,8 @@ static int imx477_set_ctrl(struct v4l2_c
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	int ret = 0;
+ 
+-	if (ctrl->id == V4L2_CID_VBLANK ||
+-	    ctrl->id == V4L2_CID_EXPOSURE_AUTO_PRIORITY) {
+-		/*
+-		 * These controls may change the limits of usable exposure,
+-		 * so check and adjust if necessary.
+-		 */
++	if (ctrl->id == V4L2_CID_VBLANK)
+ 		imx477_adjust_exposure_range(imx477, ctrl);
+-	}
+ 
+ 	/*
+ 	 * Applying V4L2 control value only happens
+@@ -1375,14 +1315,8 @@ static int imx477_set_ctrl(struct v4l2_c
+ 				       IMX477_REG_VALUE_16BIT, ctrl->val);
+ 		break;
+ 	case V4L2_CID_EXPOSURE:
+-		ret = imx477_set_exposure(imx477, ctrl->val);
+-		break;
+-	case V4L2_CID_EXPOSURE_AUTO_PRIORITY:
+-		/*
+-		 * imx477_set_exposure() will recalculate the frame length
+-		 * to adjust the framerate to match the exposure.
+-		 */
+-		ret = imx477_set_exposure(imx477, imx477->exposure->val);
++		ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
++				       IMX477_REG_VALUE_16BIT, ctrl->val);
+ 		break;
+ 	case V4L2_CID_DIGITAL_GAIN:
+ 		ret = imx477_write_reg(imx477, IMX477_REG_DIGITAL_GAIN,
+@@ -2005,11 +1939,6 @@ static int imx477_init_controls(struct i
+ 			  IMX477_DGTL_GAIN_MIN, IMX477_DGTL_GAIN_MAX,
+ 			  IMX477_DGTL_GAIN_STEP, IMX477_DGTL_GAIN_DEFAULT);
+ 
+-	imx477->exposure_auto =
+-			v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
+-					  V4L2_CID_EXPOSURE_AUTO_PRIORITY,
+-					  0, 1, 1, 0);
+-
+ 	imx477->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops,
+ 					  V4L2_CID_HFLIP, 0, 1, 1, 0);
+ 	if (imx477->hflip)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0485-media-i2c-imx477-Add-very-long-exposure-control-to-t.patch b/target/linux/bcm27xx/patches-5.10/950-0485-media-i2c-imx477-Add-very-long-exposure-control-to-t.patch
new file mode 100644
index 0000000000..1ad1f5ddbd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0485-media-i2c-imx477-Add-very-long-exposure-control-to-t.patch
@@ -0,0 +1,126 @@
+From 973d774838b036ceef91e09a7994558c793b4d8a Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Wed, 10 Feb 2021 10:50:32 +0000
+Subject: [PATCH] media: i2c: imx477: Add very long exposure control to
+ the driver
+
+Add support for very long exposures by using the exposure multiplier
+register. Userland does not need to pass any additional controls to
+enable long exposures, it simply requests a larger vblank to extend the
+exposure control range appropriately.
+
+Currently, since hblank is fixed, a maximum of approximately 124 seconds
+of exposure time can be used. In a future change, hblank could also be
+controlled in userland to give over 200 seconds of exposure time.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 47 +++++++++++++++++++++++++++++++++-----
+ 1 file changed, 41 insertions(+), 6 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -44,6 +44,10 @@
+ #define IMX477_REG_FRAME_LENGTH		0x0340
+ #define IMX477_FRAME_LENGTH_MAX		0xffdc
+ 
++/* Long exposure multiplier */
++#define IMX477_LONG_EXP_SHIFT_MAX	7
++#define IMX477_LONG_EXP_SHIFT_REG	0x3100
++
+ /* Exposure control */
+ #define IMX477_REG_EXPOSURE		0x0202
+ #define IMX477_EXPOSURE_OFFSET		22
+@@ -1097,6 +1101,9 @@ struct imx477 {
+ 
+ 	/* Rewrite common registers on stream on? */
+ 	bool common_regs_written;
++
++	/* Current long exposure factor in use. Set through V4L2_CID_VBLANK */
++	unsigned int long_exp_shift;
+ };
+ 
+ static inline struct imx477 *to_imx477(struct v4l2_subdev *_sd)
+@@ -1285,13 +1292,33 @@ static void imx477_adjust_exposure_range
+ 
+ 	/* Honour the VBLANK limits when setting exposure. */
+ 	exposure_max = imx477->mode->height + imx477->vblank->val -
+-						IMX477_EXPOSURE_OFFSET;
++		       (IMX477_EXPOSURE_OFFSET << imx477->long_exp_shift);
+ 	exposure_def = min(exposure_max, imx477->exposure->val);
+ 	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
+ 				 exposure_max, imx477->exposure->step,
+ 				 exposure_def);
+ }
+ 
++static int imx477_set_frame_length(struct imx477 *imx477, unsigned int val)
++{
++	int ret = 0;
++
++	imx477->long_exp_shift = 0;
++
++	while (val > IMX477_FRAME_LENGTH_MAX) {
++		imx477->long_exp_shift++;
++		val >>= 1;
++	}
++
++	ret = imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH,
++			       IMX477_REG_VALUE_16BIT, val);
++	if (ret)
++		return ret;
++
++	return imx477_write_reg(imx477, IMX477_LONG_EXP_SHIFT_REG,
++				IMX477_REG_VALUE_08BIT, imx477->long_exp_shift);
++}
++
+ static int imx477_set_ctrl(struct v4l2_ctrl *ctrl)
+ {
+ 	struct imx477 *imx477 =
+@@ -1299,6 +1326,10 @@ static int imx477_set_ctrl(struct v4l2_c
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	int ret = 0;
+ 
++	/*
++	 * The VBLANK control may change the limits of usable exposure, so check
++	 * and adjust if necessary.
++	 */
+ 	if (ctrl->id == V4L2_CID_VBLANK)
+ 		imx477_adjust_exposure_range(imx477, ctrl);
+ 
+@@ -1316,7 +1347,8 @@ static int imx477_set_ctrl(struct v4l2_c
+ 		break;
+ 	case V4L2_CID_EXPOSURE:
+ 		ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE,
+-				       IMX477_REG_VALUE_16BIT, ctrl->val);
++				       IMX477_REG_VALUE_16BIT, ctrl->val >>
++							imx477->long_exp_shift);
+ 		break;
+ 	case V4L2_CID_DIGITAL_GAIN:
+ 		ret = imx477_write_reg(imx477, IMX477_REG_DIGITAL_GAIN,
+@@ -1350,9 +1382,8 @@ static int imx477_set_ctrl(struct v4l2_c
+ 				       imx477->vflip->val << 1);
+ 		break;
+ 	case V4L2_CID_VBLANK:
+-		ret = imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH,
+-				       IMX477_REG_VALUE_16BIT,
+-				       imx477->mode->height + ctrl->val);
++		ret = imx477_set_frame_length(imx477,
++					      imx477->mode->height + ctrl->val);
+ 		break;
+ 	default:
+ 		dev_info(&client->dev,
+@@ -1521,9 +1552,13 @@ static void imx477_set_framing_limits(st
+ 	frm_length_default =
+ 		     imx477_get_frame_length(mode, &mode->timeperframe_default);
+ 
++	/* Default to no long exposure multiplier. */
++	imx477->long_exp_shift = 0;
++
+ 	/* Update limits and set FPS to default */
+ 	__v4l2_ctrl_modify_range(imx477->vblank, frm_length_min - mode->height,
+-				 IMX477_FRAME_LENGTH_MAX - mode->height,
++				 ((1 << IMX477_LONG_EXP_SHIFT_MAX) *
++					IMX477_FRAME_LENGTH_MAX) - mode->height,
+ 				 1, frm_length_default - mode->height);
+ 
+ 	/* Setting this will adjust the exposure limits as well. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0486-media-i2c-imx290-Fix-up-exposure-calcuations-and-ran.patch b/target/linux/bcm27xx/patches-5.10/950-0486-media-i2c-imx290-Fix-up-exposure-calcuations-and-ran.patch
new file mode 100644
index 0000000000..9caf98942d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0486-media-i2c-imx290-Fix-up-exposure-calcuations-and-ran.patch
@@ -0,0 +1,59 @@
+From 2b7aa91757952e3214ddfd335ae527b89240ecb8 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 17 Feb 2021 18:08:12 +0000
+Subject: [PATCH] media: i2c: imx290: Fix up exposure calcuations and
+ ranges
+
+Should now correspond exactly to the datasheet.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 14 +++++++-------
+ 1 file changed, 7 insertions(+), 7 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -50,7 +50,7 @@ enum imx290_clk_index {
+ #define IMX290_HMAX_MIN_4LANE 2200 /* Min of 2200 pixels = 60fps */
+ #define IMX290_HMAX_MAX 0xffff
+ 
+-#define IMX290_EXPOSURE_MIN 2
++#define IMX290_EXPOSURE_MIN 1
+ #define IMX290_EXPOSURE_STEP 1
+ #define IMX290_EXPOSURE_LOW 0x3020
+ #define IMX290_PGCTRL 0x308c
+@@ -584,7 +584,7 @@ static int imx290_set_gain(struct imx290
+ static int imx290_set_exposure(struct imx290 *imx290, u32 value)
+ {
+ 	u32 exposure = (imx290->current_mode->height + imx290->vblank->val) -
+-						value;
++						value - 1;
+ 	int ret;
+ 
+ 	ret = imx290_write_buffered_reg(imx290, IMX290_EXPOSURE_LOW, 3,
+@@ -855,10 +855,10 @@ static int imx290_set_fmt(struct v4l2_su
+ 		}
+ 		if (imx290->exposure)
+ 			__v4l2_ctrl_modify_range(imx290->exposure,
+-						 mode->vmax - mode->height,
+-						 mode->vmax - 4,
++						 IMX290_EXPOSURE_MIN,
++						 mode->vmax - 2,
+ 						 IMX290_EXPOSURE_STEP,
+-						 mode->vmax - 4);
++						 mode->vmax - 2);
+ 	}
+ 
+ 	*format = fmt->format;
+@@ -1349,9 +1349,9 @@ static int imx290_probe(struct i2c_clien
+ 	imx290->exposure = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ 					     V4L2_CID_EXPOSURE,
+ 					     IMX290_EXPOSURE_MIN,
+-					     mode->vmax - 4,
++					     mode->vmax - 2,
+ 					     IMX290_EXPOSURE_STEP,
+-					     mode->vmax - 4);
++					     mode->vmax - 2);
+ 
+ 	imx290->hflip = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ 					  V4L2_CID_HFLIP, 0, 1, 1, 0);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0487-media-i2c-imx290-Handle-exposure-correctly-when-vbla.patch b/target/linux/bcm27xx/patches-5.10/950-0487-media-i2c-imx290-Handle-exposure-correctly-when-vbla.patch
new file mode 100644
index 0000000000..ed1701103a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0487-media-i2c-imx290-Handle-exposure-correctly-when-vbla.patch
@@ -0,0 +1,42 @@
+From 8e9c9047f05e165d158b3718528fc8bcdaf856e8 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Thu, 18 Feb 2021 11:58:29 +0000
+Subject: [PATCH] media: i2c: imx290: Handle exposure correctly when
+ vblank changes
+
+When vblank changes we must modify the exposure range. Also, with this
+sensor, the effective exposure time implicitly changes when vblank
+does, so we have to reset it after every vblank update.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -618,6 +618,24 @@ static int imx290_set_vmax(struct imx290
+ 	if (ret)
+ 		dev_err(imx290->dev, "Unable to write vmax\n");
+ 
++	/*
++	 * Changing vblank changes the allowed range for exposure.
++	 * We don't supply the current exposure as default here as it
++	 * may lie outside the new range. We will reset it just below.
++	 */
++	__v4l2_ctrl_modify_range(imx290->exposure,
++				 IMX290_EXPOSURE_MIN,
++				 vmax - 2,
++				 IMX290_EXPOSURE_STEP,
++				 vmax - 2);
++
++	/*
++	 * Becuse of the way exposure works for this sensor, updating
++	 * vblank causes the effective exposure to change, so we must
++	 * set it back to the "new" correct value.
++	 */
++	imx290_set_exposure(imx290, imx290->exposure->val);
++
+ 	return ret;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0488-DAC-overlays-4154.patch b/target/linux/bcm27xx/patches-5.10/950-0488-DAC-overlays-4154.patch
new file mode 100644
index 0000000000..31509d9225
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0488-DAC-overlays-4154.patch
@@ -0,0 +1,153 @@
+From 58e6a45fb77833acc3fdaf0460ed3407f22dee63 Mon Sep 17 00:00:00 2001
+From: pifi-bz <73530753+pifi-bz@users.noreply.github.com>
+Date: Fri, 19 Feb 2021 13:14:32 +0200
+Subject: [PATCH] DAC overlays  (#4154)
+
+Adding overlays for PiFi DAC Zero and PiFi DAC HD.
+
+Signed-off-by: David Knell <david.knell@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  2 +
+ arch/arm/boot/dts/overlays/README             | 12 +++++
+ .../boot/dts/overlays/pifi-dac-hd-overlay.dts | 49 +++++++++++++++++++
+ .../dts/overlays/pifi-dac-zero-overlay.dts    | 49 +++++++++++++++++++
+ 4 files changed, 112 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/pifi-dac-hd-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/pifi-dac-zero-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -130,6 +130,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	pibell.dtbo \
+ 	pifacedigital.dtbo \
+ 	pifi-40.dtbo \
++	pifi-dac-hd.dtbo \
++	pifi-dac-zero.dtbo \
+ 	pifi-mini-210.dtbo \
+ 	piglow.dtbo \
+ 	piscreen.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2131,6 +2131,18 @@ Load:   dtoverlay=pifi-40
+ Params: <None>
+ 
+ 
++Name:   pifi-dac-hd
++Info:   Configures the PiFi DAC HD
++Load:   dtoverlay=pifi-dac-hd
++Params: <None>
++
++
++Name:   pifi-dac-zero
++Info:   Configures the PiFi DAC Zero
++Load:   dtoverlay=pifi-dac-zero
++Params: <None>
++
++
+ Name:   pifi-mini-210
+ Info:   Configures the PiFi Mini stereo amplifier
+ Load:   dtoverlay=pifi-mini-210
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pifi-dac-hd-overlay.dts
+@@ -0,0 +1,49 @@
++// Overlay for PiFi-DAC-HD
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target = <&i2c1>;
++		__overlay__ {
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells =<0>;
++
++			pcm5142: pcm5142@4c {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5142";
++				reg = <0x4c>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,name = "PiFi-DAC-HD";
++			status = "okay";
++
++			simple-audio-card,dai-link@1 {
++				format = "i2s";
++				cpu {
++					sound-dai = <&i2s>;
++				};
++				codec {
++					sound-dai = <&pcm5142>;
++				};
++			};
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pifi-dac-zero-overlay.dts
+@@ -0,0 +1,49 @@
++// Overlay for PiFi-DAC-Zero
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,name = "PiFi-DAC-Zero";
++			status = "okay";
++
++			simple-audio-card,dai-link@1 {
++				format = "i2s";
++
++				cpu {
++					sound-dai = <&i2s>;
++					dai-tdm-slot-num = <2>;
++					dai-tdm-slot-width = <32>;
++				};
++
++				codec {
++					sound-dai = <&codec_out>;
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			codec_out: pcm5102a-codec {
++				#sound-dai-cells = <0>;
++				compatible = "ti,pcm5102a";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2s>;
++		__overlay__ {
++			#sound-dai-cells = <0>;
++			status = "okay";
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0489-media-i2c-imx477-Fix-crop-height-for-2028x1080-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0489-media-i2c-imx477-Fix-crop-height-for-2028x1080-mode.patch
new file mode 100644
index 0000000000..d62d9344eb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0489-media-i2c-imx477-Fix-crop-height-for-2028x1080-mode.patch
@@ -0,0 +1,25 @@
+From 0444c9cf99e6dc1353b8bcfcd3580e3a4d91fb22 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 18 Feb 2021 15:05:57 +0000
+Subject: [PATCH] media: i2c: imx477: Fix crop height for 2028x1080
+ mode
+
+The crop height for this mode was set at 2600 lines, it should be 2160
+lines instead.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -955,7 +955,7 @@ static const struct imx477_mode supporte
+ 			.left = IMX477_PIXEL_ARRAY_LEFT,
+ 			.top = IMX477_PIXEL_ARRAY_TOP + 440,
+ 			.width = 4056,
+-			.height = 2600,
++			.height = 2160,
+ 		},
+ 		.timeperframe_min = {
+ 			.numerator = 100,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0490-media-i2c-imx477-Replace-existing-1012x760-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0490-media-i2c-imx477-Replace-existing-1012x760-mode.patch
new file mode 100644
index 0000000000..512cd6ae54
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0490-media-i2c-imx477-Replace-existing-1012x760-mode.patch
@@ -0,0 +1,197 @@
+From f90f60490c5f5f944077a42b2394c0b51c393ce1 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Thu, 18 Feb 2021 15:23:11 +0000
+Subject: [PATCH] media: i2c: imx477: Replace existing 1012x760 mode
+
+The existing 1012x760 120 fps mode has significant IQ problem using
+the internal sensor scaler. Replace this mode with a 1332x990 120 fps
+mode instead. This new mode has a smaller field of view, but does not
+suffer from the bad IQ of the original mode.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 97 ++++++++++++++++++++------------------
+ 1 file changed, 50 insertions(+), 47 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -770,7 +770,7 @@ static const struct imx477_reg mode_2028
+ };
+ 
+ /* 4x4 binned. 120fps */
+-static const struct imx477_reg mode_1012x760_regs[] = {
++static const struct imx477_reg mode_1332x990_regs[] = {
+ 	{0x420b, 0x01},
+ 	{0x990c, 0x00},
+ 	{0x990d, 0x08},
+@@ -786,28 +786,31 @@ static const struct imx477_reg mode_1012
+ 	{0x0112, 0x0a},
+ 	{0x0113, 0x0a},
+ 	{0x0114, 0x01},
+-	{0x0342, 0x14},
+-	{0x0343, 0x60},
++	{0x0342, 0x1a},
++	{0x0343, 0x08},
++	{0x0340, 0x04},
++	{0x0341, 0x1a},
+ 	{0x0344, 0x00},
+ 	{0x0345, 0x00},
+-	{0x0346, 0x00},
+-	{0x0347, 0x00},
++	{0x0346, 0x02},
++	{0x0347, 0x10},
+ 	{0x0348, 0x0f},
+-	{0x0349, 0xd3},
+-	{0x034a, 0x0b},
+-	{0x034b, 0xdf},
++	{0x0349, 0xd7},
++	{0x034a, 0x09},
++	{0x034b, 0xcf},
+ 	{0x00e3, 0x00},
+ 	{0x00e4, 0x00},
+ 	{0x00fc, 0x0a},
+ 	{0x00fd, 0x0a},
+ 	{0x00fe, 0x0a},
+ 	{0x00ff, 0x0a},
++	{0xe013, 0x00},
+ 	{0x0220, 0x00},
+ 	{0x0221, 0x11},
+ 	{0x0381, 0x01},
+ 	{0x0383, 0x01},
+ 	{0x0385, 0x01},
+-	{0x0387, 0x03},
++	{0x0387, 0x01},
+ 	{0x0900, 0x01},
+ 	{0x0901, 0x22},
+ 	{0x0902, 0x02},
+@@ -831,29 +834,29 @@ static const struct imx477_reg mode_1012
+ 	{0x936d, 0x5f},
+ 	{0x9304, 0x03},
+ 	{0x9305, 0x80},
+-	{0x9e9a, 0x3f},
+-	{0x9e9b, 0x3f},
+-	{0x9e9c, 0x3f},
+-	{0x9e9d, 0x27},
+-	{0x9e9e, 0x27},
+-	{0x9e9f, 0x27},
++	{0x9e9a, 0x2f},
++	{0x9e9b, 0x2f},
++	{0x9e9c, 0x2f},
++	{0x9e9d, 0x00},
++	{0x9e9e, 0x00},
++	{0x9e9f, 0x00},
+ 	{0xa2a9, 0x27},
+ 	{0xa2b7, 0x03},
+-	{0x0401, 0x01},
++	{0x0401, 0x00},
+ 	{0x0404, 0x00},
+-	{0x0405, 0x20},
+-	{0x0408, 0x00},
+-	{0x0409, 0x00},
++	{0x0405, 0x10},
++	{0x0408, 0x01},
++	{0x0409, 0x5c},
+ 	{0x040a, 0x00},
+ 	{0x040b, 0x00},
+-	{0x040c, 0x07},
+-	{0x040d, 0xea},
+-	{0x040e, 0x02},
+-	{0x040f, 0xf8},
+-	{0x034c, 0x03},
+-	{0x034d, 0xf4},
+-	{0x034e, 0x02},
+-	{0x034f, 0xf8},
++	{0x040c, 0x05},
++	{0x040d, 0x34},
++	{0x040e, 0x03},
++	{0x040f, 0xde},
++	{0x034c, 0x05},
++	{0x034d, 0x34},
++	{0x034e, 0x03},
++	{0x034f, 0xde},
+ 	{0x0301, 0x05},
+ 	{0x0303, 0x02},
+ 	{0x0305, 0x02},
+@@ -870,21 +873,21 @@ static const struct imx477_reg mode_1012
+ 	{0x0822, 0x00},
+ 	{0x0823, 0x00},
+ 	{0x080a, 0x00},
+-	{0x080b, 0x6f},
++	{0x080b, 0x7f},
+ 	{0x080c, 0x00},
+-	{0x080d, 0x3f},
++	{0x080d, 0x4f},
+ 	{0x080e, 0x00},
+-	{0x080f, 0xff},
++	{0x080f, 0x77},
+ 	{0x0810, 0x00},
+-	{0x0811, 0x4f},
++	{0x0811, 0x5f},
+ 	{0x0812, 0x00},
+-	{0x0813, 0x47},
++	{0x0813, 0x57},
+ 	{0x0814, 0x00},
+-	{0x0815, 0x37},
+-	{0x0816, 0x00},
+-	{0x0817, 0xe7},
++	{0x0815, 0x4f},
++	{0x0816, 0x01},
++	{0x0817, 0x27},
+ 	{0x0818, 0x00},
+-	{0x0819, 0x2f},
++	{0x0819, 0x3f},
+ 	{0xe04c, 0x00},
+ 	{0xe04d, 0x5f},
+ 	{0xe04e, 0x00},
+@@ -893,7 +896,7 @@ static const struct imx477_reg mode_1012
+ 	{0x3e37, 0x00},
+ 	{0x3f50, 0x00},
+ 	{0x3f56, 0x00},
+-	{0x3f57, 0x96},
++	{0x3f57, 0xbf},
+ };
+ 
+ /* Mode configs */
+@@ -974,9 +977,9 @@ static const struct imx477_mode supporte
+ 
+ static const struct imx477_mode supported_modes_10bit[] = {
+ 	{
+-		/* 720P 120fps. 4x4 binned */
+-		.width = 1012,
+-		.height = 760,
++		/* 120fps. 2x2 binned and cropped */
++		.width = 1332,
++		.height = 990,
+ 		.line_length_pix = 0x1460,
+ 		.crop = {
+ 			/*
+@@ -987,10 +990,10 @@ static const struct imx477_mode supporte
+ 			 * rectangle once the driver is expanded to represent
+ 			 * its processing blocks with multiple subdevs.
+ 			 */
+-			.left = IMX477_PIXEL_ARRAY_LEFT + 4,
+-			.top = IMX477_PIXEL_ARRAY_TOP,
+-			.width = 4052,
+-			.height = 3040,
++			.left = IMX477_PIXEL_ARRAY_LEFT + 696,
++			.top = IMX477_PIXEL_ARRAY_TOP + 528,
++			.width = 2664,
++			.height = 1980,
+ 		},
+ 		.timeperframe_min = {
+ 			.numerator = 100,
+@@ -998,11 +1001,11 @@ static const struct imx477_mode supporte
+ 		},
+ 		.timeperframe_default = {
+ 			.numerator = 100,
+-			.denominator = 60000
++			.denominator = 12000
+ 		},
+ 		.reg_list = {
+-			.num_of_regs = ARRAY_SIZE(mode_1012x760_regs),
+-			.regs = mode_1012x760_regs,
++			.num_of_regs = ARRAY_SIZE(mode_1332x990_regs),
++			.regs = mode_1332x990_regs,
+ 		}
+ 	}
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0491-media-i2c-imx477-Remove-internal-v4l2_mbus_framefmt-.patch b/target/linux/bcm27xx/patches-5.10/950-0491-media-i2c-imx477-Remove-internal-v4l2_mbus_framefmt-.patch
new file mode 100644
index 0000000000..5e15d6b4a3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0491-media-i2c-imx477-Remove-internal-v4l2_mbus_framefmt-.patch
@@ -0,0 +1,70 @@
+From 013bd52fb83d145e90b8678c004ae1b32854d7f7 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 19 Feb 2021 10:30:49 +0000
+Subject: [PATCH] media: i2c: imx477: Remove internal
+ v4l2_mbus_framefmt from the state
+
+The only field in this struct that is used is the format code, so
+replace the struct with this single field.
+
+Save the format code in imx477_set_pad_format() when setting up a new
+mode so that imx477_get_pad_format() performs the right lookup.
+Otherwise, this caused a bug where the mode lookup occurred on the
+12-bit table rather than the 10-bit table.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 19 ++++---------------
+ 1 file changed, 4 insertions(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1073,7 +1073,7 @@ struct imx477 {
+ 	struct v4l2_subdev sd;
+ 	struct media_pad pad[NUM_PADS];
+ 
+-	struct v4l2_mbus_framefmt fmt;
++	unsigned int fmt_code;
+ 
+ 	struct clk *xclk;
+ 	u32 xclk_freq;
+@@ -1235,21 +1235,9 @@ static u32 imx477_get_format_code(struct
+ 
+ static void imx477_set_default_format(struct imx477 *imx477)
+ {
+-	struct v4l2_mbus_framefmt *fmt = &imx477->fmt;
+-
+ 	/* Set default mode to max resolution */
+ 	imx477->mode = &supported_modes_12bit[0];
+-
+-	fmt->code = MEDIA_BUS_FMT_SRGGB12_1X12;
+-	fmt->colorspace = V4L2_COLORSPACE_SRGB;
+-	fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace);
+-	fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
+-							  fmt->colorspace,
+-							  fmt->ycbcr_enc);
+-	fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace);
+-	fmt->width = imx477->mode->width;
+-	fmt->height = imx477->mode->height;
+-	fmt->field = V4L2_FIELD_NONE;
++	imx477->fmt_code = MEDIA_BUS_FMT_SRGGB12_1X12;
+ }
+ 
+ static int imx477_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+@@ -1520,7 +1508,7 @@ static int imx477_get_pad_format(struct
+ 			imx477_update_image_pad_format(imx477, imx477->mode,
+ 						       fmt);
+ 			fmt->format.code =
+-			       imx477_get_format_code(imx477, imx477->fmt.code);
++			       imx477_get_format_code(imx477, imx477->fmt_code);
+ 		} else {
+ 			imx477_update_metadata_pad_format(fmt);
+ 		}
+@@ -1611,6 +1599,7 @@ static int imx477_set_pad_format(struct
+ 			*framefmt = fmt->format;
+ 		} else {
+ 			imx477->mode = mode;
++			imx477->fmt_code = fmt->format.code;
+ 			imx477_set_framing_limits(imx477);
+ 		}
+ 	} else {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0492-media-i2c-imx477-Remove-unused-function-parameter.patch b/target/linux/bcm27xx/patches-5.10/950-0492-media-i2c-imx477-Remove-unused-function-parameter.patch
new file mode 100644
index 0000000000..4099c3c4da
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0492-media-i2c-imx477-Remove-unused-function-parameter.patch
@@ -0,0 +1,34 @@
+From 208c3db346fe64ed5e270350920aad5bc5425a14 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 19 Feb 2021 11:06:40 +0000
+Subject: [PATCH] media: i2c: imx477: Remove unused function parameter
+
+The struct imx477 *ctrl parameter is not used in the function
+imx477_adjust_exposure_range(), so remove it.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1276,8 +1276,7 @@ static int imx477_open(struct v4l2_subde
+ 	return 0;
+ }
+ 
+-static void imx477_adjust_exposure_range(struct imx477 *imx477,
+-					 struct v4l2_ctrl *ctrl)
++static void imx477_adjust_exposure_range(struct imx477 *imx477)
+ {
+ 	int exposure_max, exposure_def;
+ 
+@@ -1322,7 +1321,7 @@ static int imx477_set_ctrl(struct v4l2_c
+ 	 * and adjust if necessary.
+ 	 */
+ 	if (ctrl->id == V4L2_CID_VBLANK)
+-		imx477_adjust_exposure_range(imx477, ctrl);
++		imx477_adjust_exposure_range(imx477);
+ 
+ 	/*
+ 	 * Applying V4L2 control value only happens
diff --git a/target/linux/bcm27xx/patches-5.10/950-0493-overlays-i2c-rtc-Add-the-Dallas-DS1340.patch b/target/linux/bcm27xx/patches-5.10/950-0493-overlays-i2c-rtc-Add-the-Dallas-DS1340.patch
new file mode 100644
index 0000000000..08b1f4a1bc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0493-overlays-i2c-rtc-Add-the-Dallas-DS1340.patch
@@ -0,0 +1,63 @@
+From fd478b369992e56665de3aabf0e19e24b5fa5e43 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 26 Feb 2021 14:19:00 +0000
+Subject: [PATCH] overlays: i2c-rtc: Add the Dallas DS1340
+
+See: https://github.com/raspberrypi/linux/issues/4180
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README              |  2 ++
+ arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 16 ++++++++++++++++
+ 2 files changed, 18 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1311,6 +1311,8 @@ Params: abx80x                  Select o
+ 
+         ds1339                  Select the DS1339 device
+ 
++        ds1340                  Select the DS1340 device
++
+         ds3231                  Select the DS3231 device
+ 
+         m41t62                  Select the M41T62 device
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -231,6 +231,20 @@
+ 		};
+ 	};
+ 
++	fragment@17 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ds1340: ds1340@68 {
++				compatible = "dallas,ds1340";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++			};
++		};
++	};
++
+ 	frag100: fragment@100 {
+ 		target = <&i2c_arm>;
+ 		i2cbus: __overlay__ {
+@@ -242,6 +256,7 @@
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+ 		ds1339 = <0>,"+2";
++		ds1340 = <0>,"+17";
+ 		ds3231 = <0>,"+3";
+ 		mcp7940x = <0>,"+4";
+ 		mcp7941x = <0>,"+5";
+@@ -273,6 +288,7 @@
+ 		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+ 				     <&rv1805>,"abracon,tc-diode";
+ 		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
++					<&ds1340>,"trickle-resistor-ohms:0",
+ 					<&abx80x>,"abracon,tc-resistor:0",
+ 					<&rv3028>,"trickle-resistor-ohms:0",
+ 					<&rv1805>,"abracon,tc-resistor:0";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0494-overlays-Update-the-upstream-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0494-overlays-Update-the-upstream-overlay.patch
new file mode 100644
index 0000000000..ed59556cb2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0494-overlays-Update-the-upstream-overlay.patch
@@ -0,0 +1,25 @@
+From 6108bbb3c19fcba6b4b108efaefbc88cc8e1ba3e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 26 Feb 2021 14:20:05 +0000
+Subject: [PATCH] overlays: Update the upstream overlay
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+@@ -116,6 +116,12 @@
+ 		};
+ 	};
+ 	fragment@18 {
++		target = <&aon_intr>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++	fragment@19 {
+ 		target = <&usb>;
+ 		#address-cells = <1>;
+ 		#size-cells = <1>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch b/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
new file mode 100644
index 0000000000..77b1b5693e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
@@ -0,0 +1,45 @@
+From 637d132b72c9208e086b71fbf39954cff3fb851c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 1 Mar 2021 09:12:44 +0000
+Subject: [PATCH] Revert "Bluetooth: Always request for user
+ confirmation for Just Works (LE SC)"
+
+This reverts commit ffee202a78c2980688bc5d2f7d56480e69a5e0c9.
+
+The commit "Bluetooth: Always request for user confirmation for Just
+Works" prevents BLE devices pairing in (at least) the Raspberry Pi OS
+GUI. After reverting it, pairing works again. Although this companion
+commit ("... (LE SC)") has not been demonstrated to be problematic,
+it follows the same logic and therefore could affect some use cases.
+
+If another solution to the problem is found then this reversion will
+be removed.
+
+See: https://github.com/raspberrypi/linux/issues/4139
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ net/bluetooth/smp.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+--- a/net/bluetooth/smp.c
++++ b/net/bluetooth/smp.c
+@@ -2201,7 +2201,7 @@ mackey_and_ltk:
+ 	if (err)
+ 		return SMP_UNSPECIFIED;
+ 
+-	if (smp->method == REQ_OOB) {
++	if (smp->method == JUST_WORKS || smp->method == REQ_OOB) {
+ 		if (hcon->out) {
+ 			sc_dhkey_check(smp);
+ 			SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
+@@ -2216,9 +2216,6 @@ mackey_and_ltk:
+ 	confirm_hint = 0;
+ 
+ confirm:
+-	if (smp->method == JUST_WORKS)
+-		confirm_hint = 1;
+-
+ 	err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type,
+ 					hcon->dst_type, passkey, confirm_hint);
+ 	if (err)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0496-Revert-Bluetooth-Always-request-for-user-confirmatio.patch b/target/linux/bcm27xx/patches-5.10/950-0496-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
new file mode 100644
index 0000000000..04c33ad904
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0496-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
@@ -0,0 +1,43 @@
+From e067981f7f882c787df637561fde847f197e9e00 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 1 Mar 2021 09:14:35 +0000
+Subject: [PATCH] Revert "Bluetooth: Always request for user
+ confirmation for Just Works"
+
+This reverts commit 92516cd97fd4d8ad5b1421a0d51771044f453a5f.
+
+Thi commit "Bluetooth: Always request for user confirmation for Just
+Works" prevents BLE devices pairing in (at least) the Raspberry Pi OS
+GUI. After reverting it, pairing works again.
+
+If another solution to the problem is found then this reversion will
+be removed.
+
+See: https://github.com/raspberrypi/linux/issues/4139
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ net/bluetooth/smp.c | 11 ++---------
+ 1 file changed, 2 insertions(+), 9 deletions(-)
+
+--- a/net/bluetooth/smp.c
++++ b/net/bluetooth/smp.c
+@@ -883,16 +883,9 @@ static int tk_request(struct l2cap_conn
+ 	    hcon->io_capability == HCI_IO_NO_INPUT_OUTPUT)
+ 		smp->method = JUST_WORKS;
+ 
+-	/* If Just Works, Continue with Zero TK and ask user-space for
+-	 * confirmation */
++	/* If Just Works, Continue with Zero TK */
+ 	if (smp->method == JUST_WORKS) {
+-		ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst,
+-						hcon->type,
+-						hcon->dst_type,
+-						passkey, 1);
+-		if (ret)
+-			return ret;
+-		set_bit(SMP_FLAG_WAIT_USER, &smp->flags);
++		set_bit(SMP_FLAG_TK_VALID, &smp->flags);
+ 		return 0;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0497-media-bcm2835-unicam-Fix-bug-in-buffer-swapping-logi.patch b/target/linux/bcm27xx/patches-5.10/950-0497-media-bcm2835-unicam-Fix-bug-in-buffer-swapping-logi.patch
new file mode 100644
index 0000000000..f8c37f2784
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0497-media-bcm2835-unicam-Fix-bug-in-buffer-swapping-logi.patch
@@ -0,0 +1,75 @@
+From 8740c5d8ab750b3e12f7f081082e2ae8c22ab6db Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 5 Mar 2021 15:40:45 +0000
+Subject: [PATCH] media: bcm2835-unicam: Fix bug in buffer swapping
+ logic
+
+If multiple sets of interrupts occur simultaneously, it may be unsafe
+to swap buffers, as the hardware may already be re-using the current
+buffers. In such cases, avoid swapping buffers, and wait for the next
+opportunity at the Frame End interrupt to signal completion.
+
+Additionally, check the packet compare status when watching for frame
+end for buffers swaps, as this could also signify a frame end event.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ .../media/platform/bcm2835/bcm2835-unicam.c   | 21 ++++++++++++++++---
+ 1 file changed, 18 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -798,6 +798,7 @@ static irqreturn_t unicam_isr(int irq, v
+ 	unsigned int sequence = unicam->sequence;
+ 	unsigned int i;
+ 	u32 ista, sta;
++	bool fe;
+ 	u64 ts;
+ 
+ 	sta = reg_read(unicam, UNICAM_STA);
+@@ -815,12 +816,18 @@ static irqreturn_t unicam_isr(int irq, v
+ 		return IRQ_HANDLED;
+ 
+ 	/*
++	 * Look for either the Frame End interrupt or the Packet Capture status
++	 * to signal a frame end.
++	 */
++	fe = (ista & UNICAM_FEI || sta & UNICAM_PI0);
++
++	/*
+ 	 * We must run the frame end handler first. If we have a valid next_frm
+ 	 * and we get a simultaneout FE + FS interrupt, running the FS handler
+ 	 * first would null out the next_frm ptr and we would have lost the
+ 	 * buffer forever.
+ 	 */
+-	if (ista & UNICAM_FEI || sta & UNICAM_PI0) {
++	if (fe) {
+ 		/*
+ 		 * Ensure we have swapped buffers already as we can't
+ 		 * stop the peripheral. If no buffer is available, use a
+@@ -831,7 +838,15 @@ static irqreturn_t unicam_isr(int irq, v
+ 			if (!unicam->node[i].streaming)
+ 				continue;
+ 
+-			if (unicam->node[i].cur_frm)
++			/*
++			 * If cur_frm == next_frm, it means we have not had
++			 * a chance to swap buffers, likely due to having
++			 * multiple interrupts occurring simultaneously (like FE
++			 * + FS + LS). In this case, we cannot signal the buffer
++			 * as complete, as the HW will reuse that buffer.
++			 */
++			if (unicam->node[i].cur_frm &&
++			    unicam->node[i].cur_frm != unicam->node[i].next_frm)
+ 				unicam_process_buffer_complete(&unicam->node[i],
+ 							       sequence);
+ 			unicam->node[i].cur_frm = unicam->node[i].next_frm;
+@@ -868,7 +883,7 @@ static irqreturn_t unicam_isr(int irq, v
+ 	 * where the HW does not actually swap it if the new frame has
+ 	 * already started.
+ 	 */
+-	if (ista & (UNICAM_FSI | UNICAM_LCI) && !(ista & UNICAM_FEI)) {
++	if (ista & (UNICAM_FSI | UNICAM_LCI) && !fe) {
+ 		for (i = 0; i < ARRAY_SIZE(unicam->node); i++) {
+ 			if (!unicam->node[i].streaming)
+ 				continue;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0498-Assign-crypto-aliases-to-different-AES-implementatio.patch b/target/linux/bcm27xx/patches-5.10/950-0498-Assign-crypto-aliases-to-different-AES-implementatio.patch
new file mode 100644
index 0000000000..4e4240bbe3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0498-Assign-crypto-aliases-to-different-AES-implementatio.patch
@@ -0,0 +1,105 @@
+From 6d99147c19566e0f82eccef876f5aae2bc8d1fcb Mon Sep 17 00:00:00 2001
+From: Ben Avison <bavison@riscosopen.org>
+Date: Mon, 8 Mar 2021 15:32:25 +0000
+Subject: [PATCH] Assign crypto aliases to different AES implementation
+ modules
+
+The kernel modules aes-neon-blk and aes-neon-bs perform poorly, at least on
+Cortex-A72 without crypto extensions. In fact, aes-arm64 outperforms them
+on benchmarks, despite it being a simpler implementation (only accelerating
+the single-block AES cipher).
+
+For modes of operation where multiple cipher blocks can be processed in
+parallel, aes-neon-bs outperforms aes-neon-blk by around 60-70% and aes-arm64
+is another 10-20% faster still. But the difference is even more marked with
+modes of operation with dependencies between neighbouring blocks, such as
+CBC encryption, which defeat parallelism: in these cases, aes-arm64 is
+typically around 250% faster than either aes-neon-blk or aes-neon-bs.
+
+The key trade-off with aes-arm64 is that the look-up tables are situated in
+RAM. This leaves them potentially open to cache timing attacks. The two other
+modules, by contrast, load the look-up tables into NEON registers and so are
+able to perform in constant time.
+
+This patch aims to load aes-arm64 more often.
+
+If none of the currently-loaded crypto modules implement a given algorithm,
+a new one is typically selected for loading using a platform-neutral alias
+describing the required algorithm. To enable users to still
+load aes-neon-blk or aes-neon-bs if they really want them, while still
+ensuring that aes-arm64 is usually selected, remove the aliases from
+aes-neonbs-glue.c and aes-glue.c and apply them to aes-cipher-glue.c, but
+still build the two NEON modules.
+
+Since aes-glue.c can also be used to build aes-ce-blk, leave them enabled
+if USE_V8_CRYPTO_EXTENSIONS is defined, to ensure they are selected if we
+in future use a CPU which has the crypto extensions enabled.
+
+Note that the algorithm priority specifiers are unchanged, so if
+aes-neon-bs is loaded at the same time as aes-arm64, the former will be
+used in preference. However, aes-neon-blk and aes-arm64 have tied priority,
+so whichever module was loaded first will be used (assuming aes-neon-bs is
+not loaded).
+
+Signed-off-by: Ben Avison <bavison@riscosopen.org>
+---
+ arch/arm64/crypto/aes-cipher-glue.c | 10 ++++++++++
+ arch/arm64/crypto/aes-glue.c        |  4 ++--
+ arch/arm64/crypto/aes-neonbs-glue.c |  5 -----
+ 3 files changed, 12 insertions(+), 7 deletions(-)
+
+--- a/arch/arm64/crypto/aes-cipher-glue.c
++++ b/arch/arm64/crypto/aes-cipher-glue.c
+@@ -9,6 +9,16 @@
+ #include <linux/crypto.h>
+ #include <linux/module.h>
+ 
++MODULE_ALIAS_CRYPTO("ecb(aes)");
++MODULE_ALIAS_CRYPTO("cbc(aes)");
++MODULE_ALIAS_CRYPTO("ctr(aes)");
++MODULE_ALIAS_CRYPTO("xts(aes)");
++MODULE_ALIAS_CRYPTO("cts(cbc(aes))");
++MODULE_ALIAS_CRYPTO("essiv(cbc(aes),sha256)");
++MODULE_ALIAS_CRYPTO("cmac(aes)");
++MODULE_ALIAS_CRYPTO("xcbc(aes)");
++MODULE_ALIAS_CRYPTO("cbcmac(aes)");
++
+ asmlinkage void __aes_arm64_encrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+ asmlinkage void __aes_arm64_decrypt(u32 *rk, u8 *out, const u8 *in, int rounds);
+ 
+--- a/arch/arm64/crypto/aes-glue.c
++++ b/arch/arm64/crypto/aes-glue.c
+@@ -55,17 +55,17 @@ MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS
+ #define aes_mac_update		neon_aes_mac_update
+ MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 NEON");
+ #endif
+-#if defined(USE_V8_CRYPTO_EXTENSIONS) || !IS_ENABLED(CONFIG_CRYPTO_AES_ARM64_BS)
++#if defined(USE_V8_CRYPTO_EXTENSIONS)
+ MODULE_ALIAS_CRYPTO("ecb(aes)");
+ MODULE_ALIAS_CRYPTO("cbc(aes)");
+ MODULE_ALIAS_CRYPTO("ctr(aes)");
+ MODULE_ALIAS_CRYPTO("xts(aes)");
+-#endif
+ MODULE_ALIAS_CRYPTO("cts(cbc(aes))");
+ MODULE_ALIAS_CRYPTO("essiv(cbc(aes),sha256)");
+ MODULE_ALIAS_CRYPTO("cmac(aes)");
+ MODULE_ALIAS_CRYPTO("xcbc(aes)");
+ MODULE_ALIAS_CRYPTO("cbcmac(aes)");
++#endif
+ 
+ MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+ MODULE_LICENSE("GPL v2");
+--- a/arch/arm64/crypto/aes-neonbs-glue.c
++++ b/arch/arm64/crypto/aes-neonbs-glue.c
+@@ -18,11 +18,6 @@
+ MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+ MODULE_LICENSE("GPL v2");
+ 
+-MODULE_ALIAS_CRYPTO("ecb(aes)");
+-MODULE_ALIAS_CRYPTO("cbc(aes)");
+-MODULE_ALIAS_CRYPTO("ctr(aes)");
+-MODULE_ALIAS_CRYPTO("xts(aes)");
+-
+ asmlinkage void aesbs_convert_key(u8 out[], u32 const rk[], int rounds);
+ 
+ asmlinkage void aesbs_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[],
diff --git a/target/linux/bcm27xx/patches-5.10/950-0499-overlays-Improve-the-i2c-rtc-i2c_csi_dsi-option.patch b/target/linux/bcm27xx/patches-5.10/950-0499-overlays-Improve-the-i2c-rtc-i2c_csi_dsi-option.patch
new file mode 100644
index 0000000000..a9ec817150
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0499-overlays-Improve-the-i2c-rtc-i2c_csi_dsi-option.patch
@@ -0,0 +1,50 @@
+From 7792f64f6d4fbd67ed99e63ad7e828430adb6bac Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 11 Mar 2021 16:11:46 +0000
+Subject: [PATCH] overlays: Improve the i2c-rtc,i2c_csi_dsi option
+
+The i2c_csi_dsi parameter of the i2c-rtc overlay (added for the CM4IO
+board) causes the RTC devices to be probed on the I2C0 bus appearing
+on GPIOs 44 and 45. However, it didn't enable the other nodes necessary
+for it to work - "dtparam=i2c_vc=on" was also required.
+
+Fix that.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts | 17 ++++++++++++++++-
+ 1 file changed, 16 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -252,6 +252,20 @@
+ 		};
+ 	};
+ 
++	fragment@101 {
++		target = <&i2c0if>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
++	fragment@102 {
++		target = <&i2c0mux>;
++		__dormant__ {
++			status = "okay";
++		};
++	};
++
+ 	__overrides__ {
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+@@ -273,7 +287,8 @@
+ 		pcf85063a = <0>,"+16";
+ 
+ 		i2c0 = <&frag100>, "target:0=",<&i2c0>;
+-		i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>;
++		i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>,
++			      <0>,"+101+102";
+ 
+ 		addr = <&abx80x>, "reg:0",
+ 		       <&ds1307>, "reg:0",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch b/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch
new file mode 100644
index 0000000000..6c13d5e330
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0500-media-v4l2_m2m-In-buffered-mode-run-jobs-if-either-p.patch
@@ -0,0 +1,33 @@
+From f9ab3e8acbbd27e81a232aa671838ace4263d46a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 1 Feb 2021 18:48:47 +0000
+Subject: [PATCH] media/v4l2_m2m: In buffered mode run jobs if either
+ port is streaming
+
+In order to get the intended behaviour of the stateful video
+decoder API where only the OUTPUT queue needs to be enabled and fed
+buffers in order to get the SOURCE_CHANGED event that configures the
+CAPTURE queue, we want the device to run should either queue be
+streaming.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/v4l2-core/v4l2-mem2mem.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
++++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
+@@ -301,9 +301,10 @@ static void __v4l2_m2m_try_queue(struct
+ 
+ 	dprintk("Trying to schedule a job for m2m_ctx: %p\n", m2m_ctx);
+ 
+-	if (!m2m_ctx->out_q_ctx.q.streaming
+-	    || !m2m_ctx->cap_q_ctx.q.streaming) {
+-		dprintk("Streaming needs to be on for both queues\n");
++	if (!(m2m_ctx->out_q_ctx.q.streaming &&
++	      m2m_ctx->cap_q_ctx.q.streaming) &&
++	    !(m2m_ctx->out_q_ctx.buffered && m2m_ctx->out_q_ctx.q.streaming)) {
++		dprintk("Streaming needs to be on for both queues, or buffered and OUTPUT streaming\n");
+ 		return;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0501-staging-bcm2835-codec-Correct-logging-of-size_t-to-z.patch b/target/linux/bcm27xx/patches-5.10/950-0501-staging-bcm2835-codec-Correct-logging-of-size_t-to-z.patch
new file mode 100644
index 0000000000..e3346d9ebc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0501-staging-bcm2835-codec-Correct-logging-of-size_t-to-z.patch
@@ -0,0 +1,34 @@
+From c3da01fd97044bb1a48bd9146d15b374d4c1ce55 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 1 Feb 2021 18:55:37 +0000
+Subject: [PATCH] staging/bcm2835-codec: Correct logging of size_t to
+ %zu
+
+Fixes: "staging/bcm2835-codec: Log the number of excess supported formats"
+Which used %u for printing a size_t, and 64bit builds then log a warning.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c  | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -2837,7 +2837,7 @@ static int bcm2835_codec_get_supported_f
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 "%s: port has more encodings than we provided space for. Some are dropped (%zu vs %u).\n",
+ 				 __func__, param_size / sizeof(u32),
+ 				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
+@@ -2883,7 +2883,7 @@ static int bcm2835_codec_get_supported_f
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 "%s: port has more encodings than we provided space for. Some are dropped (%zu vs %u).\n",
+ 				 __func__, param_size / sizeof(u32),
+ 				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0502-staging-bcm2835-codec-Add-support-for-pixel-aspect-r.patch b/target/linux/bcm27xx/patches-5.10/950-0502-staging-bcm2835-codec-Add-support-for-pixel-aspect-r.patch
new file mode 100644
index 0000000000..ed5e3f7fa1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0502-staging-bcm2835-codec-Add-support-for-pixel-aspect-r.patch
@@ -0,0 +1,82 @@
+From 5a1f76940af2691627837bb4f181a672abfaffa2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 2 Feb 2021 15:50:18 +0000
+Subject: [PATCH] staging/bcm2835-codec: Add support for pixel aspect
+ ratio
+
+If the format is detected by the driver and a V4L2_EVENT_SOURCE_CHANGE
+event is generated, then pass on the pixel aspect ratio as well.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c        | 31 +++++++++++++++++++
+ 1 file changed, 31 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -602,6 +602,7 @@ struct bcm2835_codec_q_data {
+ 	unsigned int		crop_width;
+ 	unsigned int		crop_height;
+ 	bool			selection_set;
++	struct v4l2_fract	aspect_ratio;
+ 
+ 	unsigned int		sizeimage;
+ 	unsigned int		sequence;
+@@ -981,6 +982,9 @@ static void handle_fmt_changed(struct bc
+ 	if (format->es.video.color_space)
+ 		color_mmal2v4l(ctx, format->es.video.color_space);
+ 
++	q_data->aspect_ratio.numerator = format->es.video.par.num;
++	q_data->aspect_ratio.denominator = format->es.video.par.den;
++
+ 	queue_res_chg_event(ctx);
+ }
+ 
+@@ -1657,6 +1661,29 @@ static int vidioc_g_parm(struct file *fi
+ 	return 0;
+ }
+ 
++static int vidioc_g_pixelaspect(struct file *file, void *fh, int type,
++				struct v4l2_fract *f)
++{
++	struct bcm2835_codec_ctx *ctx = file2ctx(file);
++
++	/*
++	 * The selection API takes V4L2_BUF_TYPE_VIDEO_CAPTURE and
++	 * V4L2_BUF_TYPE_VIDEO_OUTPUT, even if the device implements the MPLANE
++	 * API. The V4L2 core will have converted the MPLANE variants to
++	 * non-MPLANE.
++	 * Open code this instead of using get_q_data in this case.
++	 */
++	if (ctx->dev->role != DECODE)
++		return -ENOIOCTLCMD;
++
++	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
++		return -EINVAL;
++
++	*f = ctx->q_data[V4L2_M2M_DST].aspect_ratio;
++
++	return 0;
++}
++
+ static int vidioc_subscribe_evt(struct v4l2_fh *fh,
+ 				const struct v4l2_event_subscription *sub)
+ {
+@@ -2082,6 +2109,8 @@ static const struct v4l2_ioctl_ops bcm28
+ 	.vidioc_g_parm		= vidioc_g_parm,
+ 	.vidioc_s_parm		= vidioc_s_parm,
+ 
++	.vidioc_g_pixelaspect	= vidioc_g_pixelaspect,
++
+ 	.vidioc_subscribe_event = vidioc_subscribe_evt,
+ 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ 
+@@ -2640,6 +2669,8 @@ static int bcm2835_codec_open(struct fil
+ 			      ctx->q_data[V4L2_M2M_DST].crop_width,
+ 			      ctx->q_data[V4L2_M2M_DST].height,
+ 			      ctx->q_data[V4L2_M2M_DST].fmt);
++	ctx->q_data[V4L2_M2M_DST].aspect_ratio.numerator = 1;
++	ctx->q_data[V4L2_M2M_DST].aspect_ratio.denominator = 1;
+ 
+ 	ctx->colorspace = V4L2_COLORSPACE_REC709;
+ 	ctx->bitrate = 10 * 1000 * 1000;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0503-staging-bcm2835-codec-Implement-additional-g_selecti.patch b/target/linux/bcm27xx/patches-5.10/950-0503-staging-bcm2835-codec-Implement-additional-g_selecti.patch
new file mode 100644
index 0000000000..5b9cd745c5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0503-staging-bcm2835-codec-Implement-additional-g_selecti.patch
@@ -0,0 +1,35 @@
+From ba936c1969753c11ed4f903d007f7e6a9e2d8abb Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 2 Feb 2021 16:46:39 +0000
+Subject: [PATCH] staging/bcm2835-codec: Implement additional
+ g_selection calls for decode
+
+v4l_cropcap calls our vidioc_g_pixelaspect function to get the pixel
+aspect ratio, but also calls g_selection for V4L2_SEL_TGT_CROP_BOUNDS
+and V4L2_SEL_TGT_CROP_DEFAULT. Whilst it allows for vidioc_g_pixelaspect
+not to be implemented, it doesn't allow for either of the other two.
+
+Add in support for the additional selection targets.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c      | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1517,6 +1517,14 @@ static int vidioc_g_selection(struct fil
+ 			s->r.width = q_data->crop_width;
+ 			s->r.height = q_data->crop_height;
+ 			break;
++		case V4L2_SEL_TGT_CROP_BOUNDS:
++		case V4L2_SEL_TGT_CROP_DEFAULT:
++			s->r.left = 0;
++			s->r.top = 0;
++			s->r.width = (q_data->bytesperline << 3) /
++						q_data->fmt->depth;
++			s->r.height = q_data->height;
++			break;
+ 		default:
+ 			return -EINVAL;
+ 		}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0504-staging-bcm2835-codec-Add-VC-1-support.patch b/target/linux/bcm27xx/patches-5.10/950-0504-staging-bcm2835-codec-Add-VC-1-support.patch
new file mode 100644
index 0000000000..bd70e73997
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0504-staging-bcm2835-codec-Add-VC-1-support.patch
@@ -0,0 +1,29 @@
+From 11bf5a8b401bbc34ace1acd8be9ed4099d95d0b1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 10 Mar 2021 19:07:48 +0000
+Subject: [PATCH] staging/bcm2835-codec: Add VC-1 support.
+
+Providing the relevant licence has been purchased, then Pi0-3
+can decode VC-1.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c       | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -576,7 +576,12 @@ static const struct bcm2835_codec_fmt su
+ 		.depth			= 0,
+ 		.flags			= V4L2_FMT_FLAG_COMPRESSED,
+ 		.mmal_fmt		= MMAL_ENCODING_VP8,
+-	},
++	}, {
++		.fourcc			= V4L2_PIX_FMT_VC1_ANNEX_G,
++		.depth			= 0,
++		.flags			= V4L2_FMT_FLAG_COMPRESSED,
++		.mmal_fmt		= MMAL_ENCODING_WVC1,
++	}
+ };
+ 
+ struct bcm2835_codec_fmt_list {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0505-vc4-drm-Avoid-full-hdmi-audio-fifo-writes.patch b/target/linux/bcm27xx/patches-5.10/950-0505-vc4-drm-Avoid-full-hdmi-audio-fifo-writes.patch
new file mode 100644
index 0000000000..7f9df9b0ff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0505-vc4-drm-Avoid-full-hdmi-audio-fifo-writes.patch
@@ -0,0 +1,32 @@
+From d0df79e13ab947367b86d7861e34f85aa6aad020 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Sun, 24 Jan 2021 15:44:10 +0000
+Subject: [PATCH] vc4/drm: Avoid full hdmi audio fifo writes
+
+We are getting occasional VC4_HD_MAI_CTL_ERRORF in
+HDMI_MAI_CTL which seem to correspond with audio dropouts.
+
+Reduce the threshold where we deassert DREQ to avoid the fifo overfilling
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1294,10 +1294,10 @@ static int vc4_hdmi_audio_prepare(struct
+ 
+ 	/* Set the MAI threshold */
+ 	HDMI_WRITE(HDMI_MAI_THR,
+-		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
+-		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
+-		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
+-		   VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
++		   VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_PANICHIGH) |
++		   VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_PANICLOW) |
++		   VC4_SET_FIELD(0x06, VC4_HD_MAI_THR_DREQHIGH) |
++		   VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_DREQLOW));
+ 
+ 	HDMI_WRITE(HDMI_MAI_CONFIG,
+ 		   VC4_HDMI_MAI_CONFIG_BIT_REVERSE |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch b/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch
new file mode 100644
index 0000000000..e829a24d74
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch
@@ -0,0 +1,36 @@
+From 40799ca446bed8dcb0bfc667fafb1c3a20f88b87 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Fri, 12 Mar 2021 11:26:29 +0000
+Subject: [PATCH] vc4/drm: Increase hdmi audio axi priority to avoid
+ lost samples
+
+With HBR audio (8 channel 192kHz) we get occasional VC4_HD_MAI_CTL_DLATE error flags in
+HDMI_MAI_CTL which seem to correspond with audio dropouts.
+
+Increasing the normal AXI priority for dma is needed to avoid these
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -179,7 +179,7 @@
+ };
+ 
+ &hdmi0 {
+-	dmas = <&dma (10|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
++	dmas = <&dma (10|(1<<27)|(1<<24)|(10<<16)|(15<<20))>;
+ 	status = "disabled";
+ };
+ 
+@@ -188,7 +188,7 @@
+ };
+ 
+ &hdmi1 {
+-	dmas = <&dma (17|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
++	dmas = <&dma (17|(1<<27)|(1<<24)|(10<<16)|(15<<20))>;
+ 	status = "disabled";
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0507-overlays-gpio-led-new-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0507-overlays-gpio-led-new-overlay.patch
new file mode 100644
index 0000000000..0450e26bbf
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0507-overlays-gpio-led-new-overlay.patch
@@ -0,0 +1,191 @@
+From 095bad7f310809a951735d03be9d06938524a6bc Mon Sep 17 00:00:00 2001
+From: Assaf Gordon <assafgordon@gmail.com>
+Date: Fri, 12 Mar 2021 00:13:07 -0700
+Subject: [PATCH] overlays: gpio-led: new overlay
+
+Add generic connection between the kernel's LED framework and
+RPI's GPIO pins.
+
+Signed-off-by: Assaf Gordon <assafgordon@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 56 +++++++++++
+ .../boot/dts/overlays/gpio-led-overlay.dts    | 97 +++++++++++++++++++
+ 3 files changed, 154 insertions(+)
+ create mode 100755 arch/arm/boot/dts/overlays/gpio-led-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -54,6 +54,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	gpio-ir.dtbo \
+ 	gpio-ir-tx.dtbo \
+ 	gpio-key.dtbo \
++	gpio-led.dtbo \
+ 	gpio-no-bank0-irq.dtbo \
+ 	gpio-no-irq.dtbo \
+ 	gpio-poweroff.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -914,6 +914,62 @@ Params: gpio                    GPIO pin
+         keycode                 Set the key code for the button
+ 
+ 
++
++Name:   gpio-led
++Info:   This is a generic overlay for activating LEDs (or any other component)
++        by a GPIO pin. Multiple LEDs can be set up using multiple calls to the
++        overlay. While there are many existing methods to activate LEDs on the
++        RPi, this method offers some advantages:
++        1) Does not require any userspace programs.
++        2) LEDs can be connected to the kernel's led-trigger framework,
++           and drive the LED based on triggers such as cpu load, heartbeat,
++           kernel panic, key input, timers and others.
++        3) LED can be tied to the input state of another GPIO pin.
++        4) The LED is setup early during the kernel boot process (useful
++           for cpu/heartbeat/panic triggers).
++
++        Typical electrical connection is:
++           RPI-GPIO.19  ->  LED  -> 300ohm resister  -> RPI-GND
++        The GPIO pin number can be changed with the 'gpio=' parameter.
++
++        To control an LED from userspace, write a 0 or 1 value:
++           echo 1 > /sys/class/leds/myled1/brightness
++        The 'myled1' name can be changed with the 'label=' parameter.
++
++        To connect the LED to a kernel trigger from userspace:
++           echo cpu > /sys/class/leds/myled1/trigger
++           echo heartbeat > /sys/class/leds/myled1/trigger
++           echo none > /sys/class/leds/myled1/trigger
++        To connect the LED to GPIO.26 pin (physical pin 37):
++           echo gpio > /sys/class/leds/myled1/trigger
++           echo 26 > /sys/class/leds/myled1/gpio
++        Available triggers:
++           cat /sys/class/leds/myled1/trigger
++
++        More information about the Linux kernel LED/Trigger system:
++           https://www.kernel.org/doc/Documentation/leds/leds-class.rst
++           https://www.kernel.org/doc/Documentation/leds/ledtrig-oneshot.rst
++Load:   dtoverlay=gpio-led,<param>=<val>
++Params: gpio                    GPIO pin connected to the LED (default 19)
++        label                   The label for this LED. It will appear under
++                                /sys/class/leds/<label> . Default 'myled1'.
++        trigger                 Set the led-trigger to connect to this LED.
++                                default 'none' (LED is user-controlled).
++                                Some possible triggers:
++                                 cpu - CPU load (all CPUs)
++                                 cpu0 - CPU load of first CPU.
++                                 mmc - disk activity (all disks)
++                                 panic - turn on on kernel panic
++                                 heartbeat - indicate system health
++                                 gpio - connect to a GPIO input pin (note:
++                                        currently the GPIO PIN can not be set
++                                        using overlay parameters, must be
++                                        done in userspace, see examples above.
++        active_low              Set to 1 to turn invert the LED control
++                                (writing 0 to /sys/class/leds/XXX/brightness
++                                will turn on the GPIO/LED). Default '0'.
++
++
+ Name:   gpio-no-bank0-irq
+ Info:   Use this overlay to disable GPIO interrupts for GPIOs in bank 0 (0-27),
+         which can be useful for UIO drivers.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/gpio-led-overlay.dts
+@@ -0,0 +1,97 @@
++// SPDX-License-Identifier: GPL-2.0-or-later
++/*
++ * gpio-led - generic connection of kernel's LED framework to the RPI's GPIO.
++ * Copyright (C) 2021 House Gordon Software Company Ltd. <assafgordon@gmail.com>
++ *
++ * Based on information from:
++ *   https://mjoldfield.com/atelier/2017/03/rpi-devicetree.html
++ *   https://www.raspberrypi.org/documentation/configuration/device-tree.md
++ *   https://www.kernel.org/doc/html/latest/leds/index.html
++ *
++ * compile with:
++ *   dtc -@ -Hepapr -I dts -O dtb -o gpio-led.dtbo gpio-led-overlay.dts
++ *
++ * There will be some warnings (can be ignored):
++ *  Warning (label_is_string): /__overrides__:label: property is not a string
++ *  Warning (unit_address_vs_reg): /fragment@0/__overlay__/led_pins@0:
++ *                                 node has a unit name, but no reg property
++ *  Warning (unit_address_vs_reg): /fragment@1/__overlay__/leds@0:
++ *                                 node has a unit name, but no reg property
++ *  Warning (gpios_property): /__overrides__: Missing property
++ *                 '#gpio-cells' in node /fragment@1/__overlay__/leds@0/led
++ *                  or bad phandle (referred from gpio[0])
++ *
++ * Typical electrical connection is:
++ *    RPI-GPIO.19  ->  LED  -> 300ohm resister  -> RPI-GND
++ *    The GPIO pin number can be changed with the 'gpio=' parameter.
++ *
++ * Test from user-space with:
++ *   # if nothing is shown, the overlay file isn't found in /boot/overlays
++ *   dtoverlay -a | grep gpio-led
++ *
++ *   # Load the overlay
++ *   dtoverlay gpio-led label=moo gpio=19
++ *
++ *   # if nothing is shown, the overlay wasn't loaded successfully
++ *   dtoverlay -l | grep gpio-led
++ *
++ *   echo 1 > /sys/class/leds/moo/brightness
++ *   echo 0 > /sys/class/leds/moo/brightness
++ *   echo cpu > /sys/class/leds/moo/trigger
++ *   echo heartbeat > /sys/class/leds/moo/trigger
++ *
++ *   # unload the overlay
++ *   dtoverlay -r gpio-led
++ *
++ * To load in /boot/config.txt add lines such as:
++ *   dtoverlay=gpio-led,gpio=19,label=heart,trigger=heartbeat
++ *   dtoverlay=gpio-led,gpio=26,label=brain,trigger=cpu
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		// Configure the gpio pin controller
++		target = <&gpio>;
++		__overlay__ {
++			led_pin: led_pins@19 {
++				brcm,pins = <19>; // gpio number
++				brcm,function = <1>; // 0 = input, 1 = output
++				brcm,pull = <0>; // 0 = none, 1 = pull down, 2 = pull up
++			};
++		};
++	};
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			leds: leds@0 {
++				compatible = "gpio-leds";
++				pinctrl-names = "default";
++				pinctrl-0 = <&led_pin>;
++				status = "okay";
++
++				led: led {
++			                label = "myled1";
++					gpios = <&gpio 19 0>;
++			                linux,default-trigger = "none";
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		gpio =       <&led>,"gpios:4",
++		             <&leds>,"reg:0",
++		             <&led_pin>,"brcm,pins:0",
++		             <&led_pin>,"reg:0";
++		label =      <&led>,"label";
++		active_low = <&led>,"gpios:8";
++		trigger =    <&led>,"linux,default-trigger";
++	};
++
++};
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch
new file mode 100644
index 0000000000..0186a0b81b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0508-overlays-Add-pcie-32bit-dma-overlay.patch
@@ -0,0 +1,86 @@
+From ce2860020c57a59c543139ad7b260624cd930dff Mon Sep 17 00:00:00 2001
+From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+Date: Mon, 15 Mar 2021 17:25:02 +0100
+Subject: [PATCH] overlays: Add pcie-32bit-dma overlay
+
+In order to accommodate full PCI DMA access to memory on newer BCM2711
+revisions, we're forced to map PCIe's view of physical memory with an
+offset. This offset makes DMA addressing dependent on having 64bit
+support on the PCI device's side. Which isn't always the case.
+
+In order to mitigate this, introduce the pcie-32bit-dma overlay which
+will forbid firmware from updating the default inbound memory window.
+The default setting, albeit limited to accessing the lower 3GB of
+memory, will allow for 32bit DMA addresses at the expense of having to
+bounce buffers.
+
+Link: https://github.com/raspberrypi/linux/issues/4197
+Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+---
+ arch/arm/boot/dts/overlays/Makefile            |  1 +
+ arch/arm/boot/dts/overlays/README              |  7 +++++++
+ arch/arm/boot/dts/overlays/overlay_map.dts     |  4 ++++
+ .../dts/overlays/pcie-32bit-dma-overlay.dts    | 18 ++++++++++++++++++
+ 4 files changed, 30 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/pcie-32bit-dma-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -128,6 +128,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	ov9281.dtbo \
+ 	papirus.dtbo \
+ 	pca953x.dtbo \
++	pcie-32bit-dma.dtbo \
+ 	pibell.dtbo \
+ 	pifacedigital.dtbo \
+ 	pifi-40.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2135,6 +2135,13 @@ Params: addr                    I2C addr
+         xra1202                 Select the Exar XRA1202 (8 bit)
+ 
+ 
++Name:   pcie-32bit-dma
++Info:   Force PCIe config to support 32bit DMA addresses at the expense of
++        having to bounce buffers.
++Load:   dtoverlay=pcie-32bit-dma
++Params: <None>
++
++
+ [ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
+ 
+ 
+--- a/arch/arm/boot/dts/overlays/overlay_map.dts
++++ b/arch/arm/boot/dts/overlays/overlay_map.dts
+@@ -37,6 +37,10 @@
+ 		deprecated = "use gpio-ir";
+ 	};
+ 
++	pcie-32bit-dma {
++		bcm2711;
++	};
++
+ 	pi3-act-led {
+ 		renamed = "act-led";
+ 	};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/pcie-32bit-dma-overlay.dts
+@@ -0,0 +1,18 @@
++/*
++ * pcie-32bit-dma-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@0 {
++		target-path = "/aliases";
++		__overlay__ {
++			pcie0 = "";
++		};
++	};
++
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0509-ARM-dts-bcm2711-Add-aliases-for-additional-SPIs.patch b/target/linux/bcm27xx/patches-5.10/950-0509-ARM-dts-bcm2711-Add-aliases-for-additional-SPIs.patch
new file mode 100644
index 0000000000..cb62ec07dd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0509-ARM-dts-bcm2711-Add-aliases-for-additional-SPIs.patch
@@ -0,0 +1,55 @@
+From fe7d0fa216c1ebea42e3391b18e9192eca5fa20f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 22 Mar 2021 09:27:16 +0000
+Subject: [PATCH] ARM: dts: bcm2711: Add aliases for additional SPIs
+
+Without aliases for the new SPI interfaces in BCM2711, spidev instances
+will be allocated sequential numbers that may not match the number of
+the physical interface.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 4 ++++
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 4 ++++
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 4 ++++
+ 3 files changed, 12 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -354,6 +354,10 @@
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		spi3 = &spi3;
++		spi4 = &spi4;
++		spi5 = &spi5;
++		spi6 = &spi6;
+ 		/delete-property/ intc;
+ 	};
+ 
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -336,6 +336,10 @@
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		spi3 = &spi3;
++		spi4 = &spi4;
++		spi5 = &spi5;
++		spi6 = &spi6;
+ 		/delete-property/ intc;
+ 	};
+ 
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -323,6 +323,10 @@
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		spi3 = &spi3;
++		spi4 = &spi4;
++		spi5 = &spi5;
++		spi6 = &spi6;
+ 		/delete-property/ intc;
+ 	};
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0510-Make-rpi-poe-fan-less-noisy-in-cool-environments.patch b/target/linux/bcm27xx/patches-5.10/950-0510-Make-rpi-poe-fan-less-noisy-in-cool-environments.patch
new file mode 100644
index 0000000000..6dea05e207
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0510-Make-rpi-poe-fan-less-noisy-in-cool-environments.patch
@@ -0,0 +1,24 @@
+From 6e4cd276213a20bc55146588b0ec2fc6b622a9d7 Mon Sep 17 00:00:00 2001
+From: ProBackup-nl <515451+ProBackup-nl@users.noreply.github.com>
+Date: Thu, 18 Mar 2021 18:21:43 +0100
+Subject: [PATCH] Make rpi poe fan less noisy in cool environments
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Run the PoE hat fan with reduced noise when possible. The PoE hat fan will spin even at PWM=1 and spins almost silent. Tested at 17ºC, the fan PWM alternates between 1 and 10, which is a lot less noisy then alternating between PWM levels 0 and 31.
+---
+ arch/arm/boot/dts/overlays/rpi-poe-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
+@@ -16,7 +16,7 @@
+ 				cooling-min-state = <0>;
+ 				cooling-max-state = <4>;
+ 				#cooling-cells = <2>;
+-				cooling-levels = <0 31 63 150 255>;
++				cooling-levels = <0 1 10 100 255>;
+ 				status = "okay";
+ 			};
+ 		};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch b/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch
new file mode 100644
index 0000000000..b156c9072e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0511-vc4-drm-Fix-source-offsets-with-DRM_FORMAT_P030.patch
@@ -0,0 +1,71 @@
+From c470db2240fa76293025852533ae8bf1c5679bfb Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 22 Mar 2021 19:43:48 +0000
+Subject: [PATCH] vc4/drm: Fix source offsets with DRM_FORMAT_P030
+
+Spec says: bits [31:4] of the given address should point to
+the 128-bit word containing the desired starting pixel,
+and bits[3:0] should be between 0 and 11, indicating which
+of the 12-pixels in that 128-bit word is the first pixel to be used
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 24 ++++++++++++++++--------
+ 1 file changed, 16 insertions(+), 8 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -824,9 +824,20 @@ static int vc4_plane_mode_set(struct drm
+ 		u32 tile_w, tile, x_off, pix_per_tile;
+ 
+ 		if (fb->format->format == DRM_FORMAT_P030) {
++			/*
++			 * Spec says: bits [31:4] of the given address should point to
++			 * the 128-bit word containing the desired starting pixel,
++			 * and bits[3:0] should be between 0 and 11, indicating which
++			 * of the 12-pixels in that 128-bit word is the first pixel to be used
++			 */
++			u32 aligned = vc4_state->src_x / 12;
++			u32 last_bits = vc4_state->src_x % 12;
++
++			x_off = aligned * 16 + last_bits;
+ 			hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT;
+ 			tiling = SCALER_CTL0_TILING_128B;
+-			tile_w = 96;
++			tile_w = 128;
++			pix_per_tile = 96;
+ 		} else {
+ 			hvs_format = HVS_PIXEL_FORMAT_H264;
+ 
+@@ -846,17 +857,16 @@ static int vc4_plane_mode_set(struct drm
+ 			default:
+ 				break;
+ 			}
++			pix_per_tile = tile_w / fb->format->cpp[0];
++			x_off = (vc4_state->src_x % pix_per_tile) /
++				(i ? h_subsample : 1) * fb->format->cpp[i];
+ 		}
+ 		if (param > SCALER_TILE_HEIGHT_MASK) {
+ 			DRM_DEBUG_KMS("SAND height too large (%d)\n",
+ 				      param);
+ 			return -EINVAL;
+ 		}
+-
+-		pix_per_tile = tile_w / fb->format->cpp[0];
+ 		tile = vc4_state->src_x / pix_per_tile;
+-		x_off = vc4_state->src_x % pix_per_tile;
+-
+ 		/* Adjust the base pointer to the first pixel to be scanned
+ 		 * out.
+ 		 *
+@@ -872,9 +882,7 @@ static int vc4_plane_mode_set(struct drm
+ 			vc4_state->offsets[i] += src_y /
+ 						 (i ? v_subsample : 1) *
+ 						 tile_w;
+-			vc4_state->offsets[i] += x_off /
+-						 (i ? h_subsample : 1) *
+-						 fb->format->cpp[i];
++			vc4_state->offsets[i] += x_off & ~(i ? 1 : 0);
+ 		}
+ 
+ 		pitch0 = VC4_SET_FIELD(param, SCALER_TILE_HEIGHT);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0512-vc4-drm-vc4_plane-Remove-subpixel-positioning-check.patch b/target/linux/bcm27xx/patches-5.10/950-0512-vc4-drm-vc4_plane-Remove-subpixel-positioning-check.patch
new file mode 100644
index 0000000000..d9aa857856
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0512-vc4-drm-vc4_plane-Remove-subpixel-positioning-check.patch
@@ -0,0 +1,62 @@
+From aa5ba5fd06cffacf4831fe6e9aef65081287924e Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 15 Mar 2021 13:28:06 +0000
+Subject: [PATCH] vc4/drm: vc4_plane: Remove subpixel positioning check
+
+There is little harm in ignoring fractional coordinates
+(they just get truncated).
+
+Without this:
+modetest -M vc4 -F tiles,gradient -s 32:1920x1080-60 -P89@74:1920x1080*.1.1@XR24
+
+is rejected. We have the same issue in Kodi when trying to
+use zoom options on video.
+
+Note: even if all coordinates are fully integer. e.g.
+src:[0,0,1920,1080] dest:[-10,-10,1940,1100]
+
+it will still get rejected as drm_atomic_helper_check_plane_state
+uses drm_rect_clip_scaled which transforms this to fractional src coords
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 21 ++++++++-------------
+ 1 file changed, 8 insertions(+), 13 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -339,7 +339,6 @@ static int vc4_plane_setup_clipping_and_
+ 	struct vc4_plane_state *vc4_state = to_vc4_plane_state(state);
+ 	struct drm_framebuffer *fb = state->fb;
+ 	struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
+-	u32 subpixel_src_mask = (1 << 16) - 1;
+ 	int num_planes = fb->format->num_planes;
+ 	struct drm_crtc_state *crtc_state;
+ 	u32 h_subsample = fb->format->hsub;
+@@ -361,18 +360,14 @@ static int vc4_plane_setup_clipping_and_
+ 	for (i = 0; i < num_planes; i++)
+ 		vc4_state->offsets[i] = bo->paddr + fb->offsets[i];
+ 
+-	/* We don't support subpixel source positioning for scaling. */
+-	if ((state->src.x1 & subpixel_src_mask) ||
+-	    (state->src.x2 & subpixel_src_mask) ||
+-	    (state->src.y1 & subpixel_src_mask) ||
+-	    (state->src.y2 & subpixel_src_mask)) {
+-		return -EINVAL;
+-	}
+-
+-	vc4_state->src_x = state->src.x1 >> 16;
+-	vc4_state->src_y = state->src.y1 >> 16;
+-	vc4_state->src_w[0] = (state->src.x2 - state->src.x1) >> 16;
+-	vc4_state->src_h[0] = (state->src.y2 - state->src.y1) >> 16;
++	/* We don't support subpixel source positioning for scaling,
++	 * but fractional coordinates can be generated by clipping
++	 * so just round for now
++	 */
++	vc4_state->src_x = DIV_ROUND_CLOSEST(state->src.x1, 1<<16);
++	vc4_state->src_y = DIV_ROUND_CLOSEST(state->src.y1, 1<<16);
++	vc4_state->src_w[0] = DIV_ROUND_CLOSEST(state->src.x2, 1<<16) - vc4_state->src_x;
++	vc4_state->src_h[0] = DIV_ROUND_CLOSEST(state->src.y2, 1<<16) - vc4_state->src_y;
+ 
+ 	vc4_state->crtc_x = state->dst.x1;
+ 	vc4_state->crtc_y = state->dst.y1;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0513-clk-raspberrypi-Also-support-HEVC-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0513-clk-raspberrypi-Also-support-HEVC-clock.patch
new file mode 100644
index 0000000000..6b44611e61
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0513-clk-raspberrypi-Also-support-HEVC-clock.patch
@@ -0,0 +1,20 @@
+From 0bf118ac01f74d16e6220261b0ca66928587fb43 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 22 Feb 2021 18:47:19 +0000
+Subject: [PATCH] clk-raspberrypi: Also support HEVC clock
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -271,6 +271,7 @@ static int raspberrypi_discover_clocks(s
+ 		case RPI_FIRMWARE_CORE_CLK_ID:
+ 		case RPI_FIRMWARE_M2MC_CLK_ID:
+ 		case RPI_FIRMWARE_V3D_CLK_ID:
++		case RPI_FIRMWARE_HEVC_CLK_ID:
+ 		case RPI_FIRMWARE_PIXEL_BVB_CLK_ID:
+ 			hw = raspberrypi_clk_register(rpi, clks->parent,
+ 						      clks->id);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0514-dt-Switch-hevc-clock-from-fixed-to-firmware-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0514-dt-Switch-hevc-clock-from-fixed-to-firmware-driver.patch
new file mode 100644
index 0000000000..0cb889897c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0514-dt-Switch-hevc-clock-from-fixed-to-firmware-driver.patch
@@ -0,0 +1,37 @@
+From f62df99cbc8077b602006ccc47e4d2ce6acdeed2 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 22 Feb 2021 18:47:43 +0000
+Subject: [PATCH] dt: Switch hevc clock from fixed to firmware driver
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts | 13 +------------
+ 1 file changed, 1 insertion(+), 12 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+@@ -24,7 +24,7 @@
+ 
+ 				interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+ 
+-				clocks = <&hevc_clk>;
++				clocks = <&firmware_clocks 11>;
+ 				clock-names = "hevc";
+ 			};
+ 		};
+@@ -47,15 +47,4 @@
+ 			};
+ 		};
+ 	};
+-
+-	fragment@2 {
+-		target-path = "/";
+-		__overlay__ {
+-			hevc_clk: hevc_clk {
+-				compatible = "fixed-clock";
+-				#clock-cells = <0>;
+-				clock-frequency = <500000000>;
+-			};
+-		};
+-	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0515-rpivid-Request-maximum-hevc-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0515-rpivid-Request-maximum-hevc-clock.patch
new file mode 100644
index 0000000000..eb25cbefd3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0515-rpivid-Request-maximum-hevc-clock.patch
@@ -0,0 +1,51 @@
+From a292e26529c7f46a549625f94bdbba004d8caa5f Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 22 Feb 2021 18:50:50 +0000
+Subject: [PATCH] rpivid: Request maximum hevc clock
+
+Query maximum and minimum clock from driver
+and use those
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/staging/media/rpivid/rpivid_video.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -490,6 +490,7 @@ static int rpivid_start_streaming(struct
+ {
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+ 	struct rpivid_dev *dev = ctx->dev;
++	long max_hevc_clock = clk_round_rate(dev->clock, ULONG_MAX);
+ 	int ret = 0;
+ 
+ 	if (ctx->src_fmt.pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
+@@ -498,7 +499,7 @@ static int rpivid_start_streaming(struct
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->start)
+ 		ret = dev->dec_ops->start(ctx);
+ 
+-	ret = clk_set_rate(dev->clock, 500 * 1000 * 1000);
++	ret = clk_set_rate(dev->clock, max_hevc_clock);
+ 	if (ret) {
+ 		dev_err(dev->dev, "Failed to set clock rate\n");
+ 		goto out;
+@@ -519,12 +520,18 @@ static void rpivid_stop_streaming(struct
+ {
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+ 	struct rpivid_dev *dev = ctx->dev;
++	long min_hevc_clock = clk_round_rate(dev->clock, 0);
++	int ret;
+ 
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->stop)
+ 		dev->dec_ops->stop(ctx);
+ 
+ 	rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
+ 
++	ret = clk_set_rate(dev->clock, min_hevc_clock);
++	if (ret)
++		dev_err(dev->dev, "Failed to set minimum clock rate\n");
++
+ 	clk_disable_unprepare(dev->clock);
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch b/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch
new file mode 100644
index 0000000000..7f446e7189
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0516-staging-bcm2835-camera-Add-support-for-DMABUFs.patch
@@ -0,0 +1,37 @@
+From 12dc4e884b44a95ebd4da612a5f57a24e9a1930f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 17 Mar 2021 12:34:57 +0000
+Subject: [PATCH] staging/bcm2835-camera: Add support for DMABUFs
+
+DMABUFs are all handled by videobuf2, so there is no reason not
+to enable support for them.
+
+Note that this driver is still using the vmalloc allocator, so
+the buffers it allocates will not be compatible with the codec
+or ISP driver that require contiguous buffers. However this
+driver should be able to import the buffers allocated by them.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c
+@@ -1453,6 +1453,7 @@ static const struct v4l2_ioctl_ops camer
+ 	.vidioc_querybuf = vb2_ioctl_querybuf,
+ 	.vidioc_qbuf = vb2_ioctl_qbuf,
+ 	.vidioc_dqbuf = vb2_ioctl_dqbuf,
++	.vidioc_expbuf = vb2_ioctl_expbuf,
+ 	.vidioc_enum_framesizes = vidioc_enum_framesizes,
+ 	.vidioc_enum_frameintervals = vidioc_enum_frameintervals,
+ 	.vidioc_g_parm        = vidioc_g_parm,
+@@ -1934,7 +1935,7 @@ static int bcm2835_mmal_probe(struct pla
+ 		q = &dev->capture.vb_vidq;
+ 		memset(q, 0, sizeof(*q));
+ 		q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+-		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ;
++		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ | VB2_DMABUF;
+ 		q->drv_priv = dev;
+ 		q->buf_struct_size = sizeof(struct vb2_mmal_buffer);
+ 		q->ops = &bm2835_mmal_video_qops;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0517-staging-fbtft-Add-minipitft13-variant.patch b/target/linux/bcm27xx/patches-5.10/950-0517-staging-fbtft-Add-minipitft13-variant.patch
new file mode 100644
index 0000000000..26419b40c7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0517-staging-fbtft-Add-minipitft13-variant.patch
@@ -0,0 +1,105 @@
+From b279b2516d9fc40cc491b142fbf453f9533f6e4f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 19 Feb 2021 10:25:01 +0000
+Subject: [PATCH] staging: fbtft: Add minipitft13 variant
+
+The Adafruit Mini-PiTFT13 display needs offsets applying when rotated,
+so use the "variant" mechanism to select a custom set_addr_win method
+using a dedicated compatible string of "fbtft,minipitft13".
+
+See: https://github.com/raspberrypi/firmware/issues/1524
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/staging/fbtft/fb_st7789v.c | 45 +++++++++++++++++++++++++++++-
+ 1 file changed, 44 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/fbtft/fb_st7789v.c
++++ b/drivers/staging/fbtft/fb_st7789v.c
+@@ -66,6 +66,12 @@ enum st7789v_command {
+ #define MADCTL_MX BIT(6) /* bitmask for column address order */
+ #define MADCTL_MY BIT(7) /* bitmask for page address order */
+ 
++static u32 col_offset = 0;
++static u32 row_offset = 0;
++static u8 col_hack_fix_offset = 0;
++static short x_offset = 0;
++static short y_offset = 0;
++
+ /**
+  * init_display() - initialize the display controller
+  *
+@@ -145,6 +151,22 @@ static int init_display(struct fbtft_par
+ 	return 0;
+ }
+ 
++static void minipitft13_set_addr_win(struct fbtft_par *par, int xs, int ys,
++				     int xe, int ye)
++{
++	xs += x_offset;
++	xe += x_offset;
++	ys += y_offset;
++	ye += y_offset;
++	write_reg(par, MIPI_DCS_SET_COLUMN_ADDRESS,
++		  xs >> 8, xs & 0xFF, xe >> 8, xe & 0xFF);
++
++	write_reg(par, MIPI_DCS_SET_PAGE_ADDRESS,
++		  ys >> 8, ys & 0xFF, ye >> 8, ye & 0xFF);
++
++	write_reg(par, MIPI_DCS_WRITE_MEMORY_START);
++}
++
+ /**
+  * set_var() - apply LCD properties like rotation and BGR mode
+  *
+@@ -155,20 +177,32 @@ static int init_display(struct fbtft_par
+ static int set_var(struct fbtft_par *par)
+ {
+ 	u8 madctl_par = 0;
++	struct fbtft_display *display = &par->pdata->display;
++	u32 width = display->width;
++	u32 height = display->height;
+ 
+ 	if (par->bgr)
+ 		madctl_par |= MADCTL_BGR;
+ 	switch (par->info->var.rotate) {
+ 	case 0:
++		x_offset = 0;
++		y_offset = 0;
+ 		break;
+ 	case 90:
+ 		madctl_par |= (MADCTL_MV | MADCTL_MY);
++		x_offset = (320 - height) - row_offset;
++		y_offset = (240 - width) - col_offset;
+ 		break;
+ 	case 180:
+ 		madctl_par |= (MADCTL_MX | MADCTL_MY);
++		x_offset = (240 - width) - col_offset + col_hack_fix_offset;
++		// hack tweak to account for extra pixel width to make even
++		y_offset = (320 - height) - row_offset;
+ 		break;
+ 	case 270:
+ 		madctl_par |= (MADCTL_MV | MADCTL_MX);
++		x_offset = row_offset;
++		y_offset = col_offset;
+ 		break;
+ 	default:
+ 		return -EINVAL;
+@@ -265,7 +299,16 @@ static struct fbtft_display display = {
+ 	},
+ };
+ 
+-FBTFT_REGISTER_DRIVER(DRVNAME, "sitronix,st7789v", &display);
++int variant_minipitft13(struct fbtft_display *display)
++{
++	display->fbtftops.set_addr_win = minipitft13_set_addr_win;
++	return 0;
++}
++
++FBTFT_REGISTER_DRIVER_START(&display)
++FBTFT_COMPATIBLE("sitronix,st7789v")
++FBTFT_VARIANT_COMPATIBLE("fbtft,minipitft13", variant_minipitft13)
++FBTFT_REGISTER_DRIVER_END(DRVNAME, &display);
+ 
+ MODULE_ALIAS("spi:" DRVNAME);
+ MODULE_ALIAS("platform:" DRVNAME);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0518-overlays-Add-minipitft13-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0518-overlays-Add-minipitft13-overlay.patch
new file mode 100644
index 0000000000..35405ee137
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0518-overlays-Add-minipitft13-overlay.patch
@@ -0,0 +1,100 @@
+From 6c6596610381249719e87e324a9689cabc2a7cd8 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 18 Feb 2021 21:05:44 +0000
+Subject: [PATCH] overlays: Add minipitft13 overlay
+
+minipitft13 is an overlay for the Adafruit 1.3" 240x240 display
+(code 4484).
+
+See: https://github.com/raspberrypi/firmware/issues/1524
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ .../boot/dts/overlays/minipitft13-overlay.dts | 70 +++++++++++++++++++
+ 2 files changed, 71 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/minipitft13-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -119,6 +119,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	merus-amp.dtbo \
+ 	midi-uart0.dtbo \
+ 	midi-uart1.dtbo \
++	minipitft13.dtbo \
+ 	miniuart-bt.dtbo \
+ 	mmc.dtbo \
+ 	mpu6050.dtbo \
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/minipitft13-overlay.dts
+@@ -0,0 +1,70 @@
++/*
++ * Device Tree overlay for Adafruit Mini PiTFT 1.3" and 1.5" 240x240 Display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&spi0>;
++                __overlay__ {
++                        status = "okay";
++
++                        spidev@0{
++                                status = "disabled";
++                        };
++
++                        spidev@1{
++                                status = "disabled";
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&gpio>;
++                __overlay__ {
++                        pitft_pins: pitft_pins {
++                                brcm,pins = <25>;
++                                brcm,function = <1>; /* out */
++                                brcm,pull = <0>; /* none */
++                        };
++                };
++        };
++
++        fragment@2 {
++                target = <&spi0>;
++                __overlay__ {
++                        /* needed to avoid dtc warning */
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++
++                        pitft: pitft@0 {
++                                compatible = "fbtft,minipitft13";
++                                reg = <0>;
++                                pinctrl-names = "default";
++                                pinctrl-0 = <&pitft_pins>;
++                                spi-max-frequency = <32000000>;
++                                rotate = <0>;
++                                width = <240>;
++                                height = <240>;
++                                buswidth = <8>;
++                                dc-gpios = <&gpio 25 0>;
++                                led-gpios = <&gpio 26 0>;
++                                debug = <0>;
++                        };
++                };
++        };
++
++        __overrides__ {
++                speed =   <&pitft>,"spi-max-frequency:0";
++                rotate =  <&pitft>,"rotate:0";
++                width =   <&pitft>,"width:0";
++                height =  <&pitft>,"height:0";
++                fps =     <&pitft>,"fps:0";
++                debug =   <&pitft>,"debug:0";
++        };
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0519-overlays-ghost-amp-Minor-tweaks.patch b/target/linux/bcm27xx/patches-5.10/950-0519-overlays-ghost-amp-Minor-tweaks.patch
new file mode 100644
index 0000000000..eee37db756
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0519-overlays-ghost-amp-Minor-tweaks.patch
@@ -0,0 +1,71 @@
+From e88444a73ef7bc16869e60ad1e392129a07a9f2c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 3 Mar 2021 10:31:13 +0000
+Subject: [PATCH] overlays: ghost-amp: Minor tweaks
+
+1. Reduce the delay between RELAY1 and RELAY2 to 1000ms.
+2. Rename the states to simplify LED control by an external script.
+3. Claim all the required GPIOs, enabling pull-ups on the input.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../boot/dts/overlays/ghost-amp-overlay.dts   | 20 ++++++++++++++++---
+ 1 file changed, 17 insertions(+), 3 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -54,6 +54,8 @@
+ 		__overlay__ {
+ 			amp: ghost-amp {
+ 				compatible = "rpi,gpio-fsm";
++				pinctrl-names = "default";
++				pinctrl-0 = <&ghost_amp_pins>;
+ 
+ 				debug = <0>;
+ 				gpio-controller;
+@@ -77,18 +79,18 @@
+ 
+ 				amp_on_1 {
+ 					set = <RELAY1 1>;
+-					amp_on = <GF_DELAY 1500>;
++					amp_on = <GF_DELAY 1000>;
+ 					amp_off = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+ 				amp_on {
+ 					set = <RELAY2 1>;
+-					amp_off_wait = <ENABLE 0>;
++					amp_on_wait = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+-				amp_off_wait {
++				amp_on_wait {
+ 					amp_off_1 = <GF_DELAY (30*60*1000)>,
+ 						    <GF_SHUTDOWN 0>;
+ 					amp_on = <ENABLE 1>;
+@@ -107,11 +109,23 @@
+ 				fault {
+ 					set = <RELAY2 0>,
+ 					      <RELAY1 0>;
++					amp_off = <FAULT 0>;
+ 					shutdown_state;
+ 				};
+ 			};
+ 		};
+ 	};
++
++	fragment@4 {
++		target = <&gpio>;
++		__overlay__ {
++			ghost_amp_pins: ghost_amp_pins {
++				brcm,pins = <5 22 23>;
++				brcm,function = <0 1 1>; /* in out out */
++				brcm,pull = <2 0 0>; /* up none none */
++			};
++		};
++	};
+ 
+ 	__overrides__ {
+ 		fsm_debug = <&amp>,"debug:0";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0520-overlays-Add-README-entry-for-minipitft13.patch b/target/linux/bcm27xx/patches-5.10/950-0520-overlays-Add-README-entry-for-minipitft13.patch
new file mode 100644
index 0000000000..7f06a02c82
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0520-overlays-Add-README-entry-for-minipitft13.patch
@@ -0,0 +1,30 @@
+From 7f2f7250d1f5ad8369fa4424e9091c6fffde408d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 29 Mar 2021 12:05:06 +0100
+Subject: [PATCH] overlays: Add README entry for minipitft13
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2018,6 +2018,17 @@ Load:   dtoverlay=midi-uart1
+ Params: <None>
+ 
+ 
++Name:   minipitft13
++Info:   Overlay for AdaFruit Mini Pi 1.3" TFT via SPI using fbtft driver.
++Load:   dtoverlay=minipitft13,<param>=<val>
++Params: speed                   SPI bus speed (default 32000000)
++        rotate                  Display rotation (0, 90, 180 or 270; default 0)
++        width                   Display width (default 240)
++        height                  Display height (default 240)
++        fps                     Delay between frame updates (default 25)
++        debug                   Debug output level (0-7; default 0)
++
++
+ Name:   miniuart-bt
+ Info:   Switch the onboard Bluetooth function on Pi 3B, 3B+, 3A+, 4B and Zero W
+         to use the mini-UART (ttyS0) and restore UART0/ttyAMA0 over GPIOs 14 &
diff --git a/target/linux/bcm27xx/patches-5.10/950-0521-ARM-dts-update-bcm2711-rpi-cm4.dts-and-400.patch b/target/linux/bcm27xx/patches-5.10/950-0521-ARM-dts-update-bcm2711-rpi-cm4.dts-and-400.patch
new file mode 100644
index 0000000000..f60418856a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0521-ARM-dts-update-bcm2711-rpi-cm4.dts-and-400.patch
@@ -0,0 +1,205 @@
+From a38d7464ca20e1c0aaa3ed77e03e1ea6af4bc557 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 31 Mar 2021 10:22:30 +0100
+Subject: [PATCH] ARM: dts: update bcm2711-rpi-cm4.dts and -400
+
+Neither CM4 nor Pi 400 have appeared upstream yet, and as a result
+they have missed out on improvements to the Pi 4B platform.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+
+ARM: dts: Bring bcm2711-rpi-400.dts up-to-date
+
+Pi 400 support has not appeared upstream yet, and as a result it has
+missed out on improvements to the other Pi 4 platforms.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 17 +++++++
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 73 +++++++++++++++++++++------
+ 2 files changed, 74 insertions(+), 16 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -24,6 +24,7 @@
+ 		emmc2bus = &emmc2bus;
+ 		ethernet0 = &genet;
+ 		pcie0 = &pcie0;
++		blconfig = &blconfig;
+ 	};
+ 
+ 	leds {
+@@ -215,6 +216,22 @@
+ 	status = "okay";
+ };
+ 
++&rmem {
++	/*
++	 * RPi4's co-processor will copy the board's bootloader configuration
++	 * into memory for the OS to consume. It'll also update this node with
++	 * its placement information.
++	 */
++	blconfig: nvram@0 {
++		compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		reg = <0x0 0x0 0x0>;
++		no-map;
++		status = "disabled";
++	};
++};
++
+ /* SDHCI is used to control the SDIO for wireless */
+ &sdhci {
+ 	#address-cells = <1>;
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -3,6 +3,8 @@
+ #include "bcm2711.dtsi"
+ #include "bcm2835-rpi.dtsi"
+ 
++#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
++
+ / {
+ 	compatible = "raspberrypi,4-compute-module", "brcm,bcm2711";
+ 	model = "Raspberry Pi Compute Module 4";
+@@ -22,6 +24,7 @@
+ 		emmc2bus = &emmc2bus;
+ 		ethernet0 = &genet;
+ 		pcie0 = &pcie0;
++		blconfig = &blconfig;
+ 	};
+ 
+ 	leds {
+@@ -76,6 +79,11 @@
+ };
+ 
+ &firmware {
++	firmware_clocks: clocks {
++		compatible = "raspberrypi,firmware-clocks";
++		#clock-cells = <1>;
++	};
++
+ 	expgpio: gpio {
+ 		compatible = "raspberrypi,firmware-gpio";
+ 		gpio-controller;
+@@ -102,6 +110,11 @@
+ 			output-low;
+ 		};
+ 	};
++
++	reset: reset {
++		compatible = "raspberrypi,firmware-reset";
++		#reset-cells = <1>;
++	};
+ };
+ 
+ &gpio {
+@@ -209,20 +222,28 @@
+ 	status = "okay";
+ };
+ 
+-&vc4 {
+-	status = "okay";
+-};
+-
+-&vec {
+-	status = "disabled";
+-};
+-
+ &pwm1 {
+ 	pinctrl-names = "default";
+ 	pinctrl-0 = <&pwm1_0_gpio40 &pwm1_1_gpio41>;
+ 	status = "okay";
+ };
+ 
++&rmem {
++	/*
++	 * RPi4's co-processor will copy the board's bootloader configuration
++	 * into memory for the OS to consume. It'll also update this node with
++	 * its placement information.
++	 */
++	blconfig: nvram@0 {
++		compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
++		#address-cells = <1>;
++		#size-cells = <1>;
++		reg = <0x0 0x0 0x0>;
++		no-map;
++		status = "disabled";
++	};
++};
++
+ /* SDHCI is used to control the SDIO for wireless */
+ &sdhci {
+ 	#address-cells = <1>;
+@@ -262,6 +283,21 @@
+ 	};
+ };
+ 
++&pcie0 {
++	pci@1,0 {
++		#address-cells = <3>;
++		#size-cells = <2>;
++		ranges;
++
++		reg = <0 0 0 0 0>;
++
++		usb@1,0 {
++			reg = <0x10000 0 0 0 0>;
++			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
++		};
++	};
++};
++
+ /* uart0 communicates with the BT module */
+ &uart0 {
+ 	pinctrl-names = "default";
+@@ -287,6 +323,14 @@
+ 	interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ 
++&vc4 {
++	status = "okay";
++};
++
++&vec {
++	status = "disabled";
++};
++
+ // =============================================
+ // Downstream rpi- changes
+ 
+@@ -306,6 +350,7 @@
+ #include "bcm283x-rpi-csi0-2lane.dtsi"
+ #include "bcm283x-rpi-csi1-4lane.dtsi"
+ #include "bcm283x-rpi-i2c0mux_0_44.dtsi"
++#include "bcm283x-rpi-cam1-regulator.dtsi"
+ 
+ / {
+ 	chosen {
+@@ -331,14 +376,6 @@
+ 	};
+ 
+ 	/delete-node/ wifi-pwrseq;
+-
+-	cam0_reg: cam1_reg: cam1_reg {
+-		compatible = "regulator-fixed";
+-		regulator-name = "cam1-reg";
+-		gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
+-		enable-active-high;
+-		status = "disabled";
+-	};
+ };
+ 
+ &mmcnr {
+@@ -589,6 +626,10 @@
+ 	brcm,disable-headphones = <1>;
+ };
+ 
++cam0_reg: &cam1_reg {
++	gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0522-vc4-drm-SQUASH-Fix-source-offsets-with-DRM_FORMAT_P0.patch b/target/linux/bcm27xx/patches-5.10/950-0522-vc4-drm-SQUASH-Fix-source-offsets-with-DRM_FORMAT_P0.patch
new file mode 100644
index 0000000000..711b2e5f17
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0522-vc4-drm-SQUASH-Fix-source-offsets-with-DRM_FORMAT_P0.patch
@@ -0,0 +1,30 @@
+From 38643fd0a26ba42938a361db296e28f3b4975d8c Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 31 Mar 2021 18:12:55 +0100
+Subject: [PATCH] vc4/drm: SQUASH: Fix source offsets with
+ DRM_FORMAT_P030
+
+x_off should only be within current stripe
+The stripe number is accounted for elsewhere
+
+Fixes: 9b1b1beb1c7e58b ("vc4/drm: Fix source offsets with DRM_FORMAT_P030")
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -825,8 +825,9 @@ static int vc4_plane_mode_set(struct drm
+ 			 * and bits[3:0] should be between 0 and 11, indicating which
+ 			 * of the 12-pixels in that 128-bit word is the first pixel to be used
+ 			 */
+-			u32 aligned = vc4_state->src_x / 12;
+-			u32 last_bits = vc4_state->src_x % 12;
++	                u32 remaining_pixels = vc4_state->src_x % 96;
++			u32 aligned = remaining_pixels / 12;
++			u32 last_bits = remaining_pixels % 12;
+ 
+ 			x_off = aligned * 16 + last_bits;
+ 			hvs_format = HVS_PIXEL_FORMAT_YCBCR_10BIT;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0523-dwc-otg-fix-clang-Wignored-attributes-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0523-dwc-otg-fix-clang-Wignored-attributes-warning.patch
new file mode 100644
index 0000000000..97bbeabc34
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0523-dwc-otg-fix-clang-Wignored-attributes-warning.patch
@@ -0,0 +1,36 @@
+From a928bb06853aa2fb2a17f5e6d22273e9731f8b3b Mon Sep 17 00:00:00 2001
+From: Jo Henke <37883863+jo-he@users.noreply.github.com>
+Date: Tue, 6 Apr 2021 11:21:35 +0000
+Subject: [PATCH] dwc-otg: fix clang -Wignored-attributes warning
+
+warning: attribute declaration must precede definition
+---
+ drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h
++++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.h
+@@ -255,17 +255,17 @@ struct fiq_dma_info {
+ 	u8 slot_len[6];
+ };
+ 
+-struct __attribute__((packed)) fiq_split_dma_slot {
++struct fiq_split_dma_slot {
+ 	u8 buf[188];
+-};
++} __attribute__((packed));
+ 
+ struct fiq_dma_channel {
+-	struct __attribute__((packed)) fiq_split_dma_slot index[6];
+-};
++	struct fiq_split_dma_slot index[6];
++} __attribute__((packed));
+ 
+ struct fiq_dma_blob {
+-	struct __attribute__((packed)) fiq_dma_channel channel[0];
+-};
++	struct fiq_dma_channel channel[0];
++} __attribute__((packed));
+ 
+ /**
+  * struct fiq_hs_isoc_info - USB2.0 isochronous data
diff --git a/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch
new file mode 100644
index 0000000000..3194f4d553
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch
@@ -0,0 +1,21 @@
+From bb876407b553af0fd55b2b07f0261d1f02eae6c1 Mon Sep 17 00:00:00 2001
+From: Jo Henke <37883863+jo-he@users.noreply.github.com>
+Date: Tue, 6 Apr 2021 11:38:28 +0000
+Subject: [PATCH] dwc-otg: fix clang -Wsometimes-uninitialized warning
+
+warning: variable 'retval' is used uninitialized whenever 'if' condition is false
+---
+ drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
+@@ -805,7 +805,7 @@ static int32_t dwc_otg_handle_pwrdn_sess
+  */
+ static uint32_t dwc_otg_handle_pwrdn_stschng_intr(dwc_otg_device_t *otg_dev)
+ {
+-	int retval;
++	uint32_t retval = 0;
+ 	gpwrdn_data_t gpwrdn = {.d32 = 0 };
+ 	gpwrdn_data_t gpwrdn_temp = {.d32 = 0 };
+ 	dwc_otg_core_if_t *core_if = otg_dev->core_if;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0525-dwc-otg-fix-clang-Wpointer-bool-conversion-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0525-dwc-otg-fix-clang-Wpointer-bool-conversion-warning.patch
new file mode 100644
index 0000000000..4e65f9a1a9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0525-dwc-otg-fix-clang-Wpointer-bool-conversion-warning.patch
@@ -0,0 +1,24 @@
+From 58429d46cf9700a9087662633ab71027eeb80bd6 Mon Sep 17 00:00:00 2001
+From: Jo Henke <37883863+jo-he@users.noreply.github.com>
+Date: Tue, 6 Apr 2021 11:45:14 +0000
+Subject: [PATCH] dwc-otg: fix clang -Wpointer-bool-conversion warning
+
+warning: address of array 'desc->wMaxPacketSize' will always evaluate to 'true'
+
+The wMaxPacketSize field is actually a two element array which content should
+be accessed via the UGETW macro.
+---
+ drivers/usb/host/dwc_otg/dwc_otg_pcd.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_pcd.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_pcd.c
+@@ -1487,7 +1487,7 @@ int dwc_otg_pcd_ep_enable(dwc_otg_pcd_t
+ 	num = UE_GET_ADDR(desc->bEndpointAddress);
+ 	dir = UE_GET_DIR(desc->bEndpointAddress);
+ 
+-	if (!desc->wMaxPacketSize) {
++	if (!UGETW(desc->wMaxPacketSize)) {
+ 		DWC_WARN("bad maxpacketsize\n");
+ 		retval = -DWC_E_INVALID;
+ 		goto out;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0526-Update-Allo-Piano-Dac-Driver.patch b/target/linux/bcm27xx/patches-5.10/950-0526-Update-Allo-Piano-Dac-Driver.patch
new file mode 100644
index 0000000000..7f1b7b30a6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0526-Update-Allo-Piano-Dac-Driver.patch
@@ -0,0 +1,277 @@
+From df85dac9b4a0855ba40c14fdf7ba93b33fd1db35 Mon Sep 17 00:00:00 2001
+From: paul-1 <6473457+paul-1@users.noreply.github.com>
+Date: Fri, 2 Apr 2021 10:56:19 -0400
+Subject: [PATCH] Update Allo Piano Dac Driver
+
+Add unique names to the individual dac coded drivers
+Remove some of the codec controls that are not used.
+
+Signed-off-by: Paul Hermann <paul@picoreplayer.org>
+
+# Conflicts:
+#	sound/soc/bcm/allo-piano-dac-plus.c
+---
+ sound/soc/bcm/allo-piano-dac-plus.c | 152 +++++++++++++++++++++-------
+ 1 file changed, 114 insertions(+), 38 deletions(-)
+
+--- a/sound/soc/bcm/allo-piano-dac-plus.c
++++ b/sound/soc/bcm/allo-piano-dac-plus.c
+@@ -2,7 +2,8 @@
+  * ALSA ASoC Machine Driver for Allo Piano DAC Plus Subwoofer
+  *
+  * Author:	Baswaraj K <jaikumar@cem-solutions.net>
+- *		Copyright 2016
++ *		Copyright 2020
++ *		based on code by David Knell <david.knell@gmail.com)
+  *		based on code by Daniel Matuschek <info@crazy-audio.com>
+  *		based on code by Florian Meier <florian.meier@koalo.de>
+  *
+@@ -276,8 +277,15 @@ static int snd_allo_piano_dual_mode_put(
+ 				PCM512x_DIGITAL_VOLUME_2, 0xff);
+ 
+ 		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+-			if (!strncmp(kctl->id.name, "Digital Playback Volume",
+-					sizeof(kctl->id.name))) {
++			if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
++				sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = mc->reg;
++				break;
++			}
++			if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
++				sizeof(kctl->id.name))) {
+ 				mc = (struct soc_mixer_control *)
+ 					kctl->private_value;
+ 				mc->rreg = mc->reg;
+@@ -291,13 +299,20 @@ static int snd_allo_piano_dual_mode_put(
+ 						PCM512x_DIGITAL_VOLUME_3);
+ 
+ 		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+-			if (!strncmp(kctl->id.name, "Digital Playback Volume",
+-					sizeof(kctl->id.name))) {
++			if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
++				sizeof(kctl->id.name))) {
+ 				mc = (struct soc_mixer_control *)
+ 					kctl->private_value;
+ 				mc->rreg = PCM512x_DIGITAL_VOLUME_3;
+ 				break;
+ 			}
++			if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
++				sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = PCM512x_DIGITAL_VOLUME_2;
++				break;
++			}
+ 		}
+ 
+ 		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+@@ -344,13 +359,20 @@ static int snd_allo_piano_mode_put(struc
+ 						PCM512x_DIGITAL_VOLUME_2);
+ 
+ 		list_for_each_entry(kctl, &snd_card_ptr->controls, list) {
+-			if (!strncmp(kctl->id.name, "Digital Playback Volume",
+-					sizeof(kctl->id.name))) {
++			if (!strncmp(kctl->id.name, "Main Digital Playback Volume",
++				sizeof(kctl->id.name))) {
+ 				mc = (struct soc_mixer_control *)
+ 					kctl->private_value;
+ 				mc->rreg = PCM512x_DIGITAL_VOLUME_3;
+ 				break;
+ 			}
++			if (!strncmp(kctl->id.name, "Sub Digital Playback Volume",
++				sizeof(kctl->id.name))) {
++				mc = (struct soc_mixer_control *)
++					kctl->private_value;
++				mc->rreg = PCM512x_DIGITAL_VOLUME_2;
++				break;
++			}
+ 		}
+ 		snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+ 				PCM512x_DIGITAL_VOLUME_3, left_val);
+@@ -397,6 +419,7 @@ static int pcm512x_get_reg_sub(struct sn
+ 	unsigned int left_val = 0;
+ 	unsigned int right_val = 0;
+ 	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
++
+ 	right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+ 			PCM512x_DIGITAL_VOLUME_3);
+ 	if (glb_ptr->dual_mode != 1) {
+@@ -428,12 +451,6 @@ static int pcm512x_set_reg_sub(struct sn
+ 	int ret = 0;
+ 
+ 	rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
+-	if (glb_ptr->dual_mode != 1) {
+-		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+-				PCM512x_DIGITAL_VOLUME_2, (~left_val));
+-		if (ret < 0)
+-			return ret;
+-	}
+ 
+ 	if (digital_gain_0db_limit) {
+ 		ret = snd_soc_limit_volume(card, "Subwoofer Playback Volume",
+@@ -443,10 +460,20 @@ static int pcm512x_set_reg_sub(struct sn
+ 				ret);
+ 	}
+ 
+-	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+-			PCM512x_DIGITAL_VOLUME_3, (~right_val));
+-	if (ret < 0)
+-		return ret;
++	// When in Dual Mono, Sub vol control should not set anything.
++	if (glb_ptr->dual_mode != 1) { //Not in Dual Mono mode
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_2, (~left_val));
++		if (ret < 0)
++			return ret;
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_3, (~right_val));
++		if (ret < 0)
++			return ret;
++
++	}
+ 
+ 	return 1;
+ }
+@@ -505,7 +532,7 @@ static int pcm512x_get_reg_master(struct
+ 	left_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 0)->component,
+ 			PCM512x_DIGITAL_VOLUME_2);
+ 
+-	if (glb_ptr->dual_mode == 1) {
++	if (glb_ptr->dual_mode == 1) {  // in Dual Mono mode
+ 		right_val = snd_soc_component_read(asoc_rtd_to_codec(rtd, 1)->component,
+ 				PCM512x_DIGITAL_VOLUME_3);
+ 	} else {
+@@ -543,8 +570,21 @@ static int pcm512x_set_reg_master(struct
+ 				ret);
+ 	}
+ 
+-	if (glb_ptr->dual_mode != 1) {
++	if (glb_ptr->dual_mode == 1) { //in Dual Mono Mode
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
++				PCM512x_DIGITAL_VOLUME_2, (~left_val));
++		if (ret < 0)
++			return ret;
++
+ 		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
++				PCM512x_DIGITAL_VOLUME_3, (~right_val));
++		if (ret < 0)
++			return ret;
++
++	} else {
++
++		ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+ 				PCM512x_DIGITAL_VOLUME_2, (~left_val));
+ 		if (ret < 0)
+ 			return ret;
+@@ -555,16 +595,6 @@ static int pcm512x_set_reg_master(struct
+ 			return ret;
+ 
+ 	}
+-
+-	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 1)->component,
+-			PCM512x_DIGITAL_VOLUME_3, (~right_val));
+-	if (ret < 0)
+-		return ret;
+-
+-	ret = snd_soc_component_write(asoc_rtd_to_codec(rtd, 0)->component,
+-			PCM512x_DIGITAL_VOLUME_2, (~left_val));
+-	if (ret < 0)
+-		return ret;
+ 	return 1;
+ }
+ 
+@@ -680,10 +710,32 @@ static const struct snd_kcontrol_new all
+ 			pcm512x_set_reg_master_switch),
+ };
+ 
++static const char * const codec_ctl_pfx[] = { "Main", "Sub" };
++static const char * const codec_ctl_name[] = {
++	"Digital Playback Volume",
++	"Digital Playback Switch",
++	"Auto Mute Mono Switch",
++	"Auto Mute Switch",
++	"Auto Mute Time Left",
++	"Auto Mute Time Right",
++	"Clock Missing Period",
++	"Max Overclock DAC",
++	"Max Overclock DSP",
++	"Max Overclock PLL",
++	"Volume Ramp Down Emergency Rate",
++	"Volume Ramp Down Emergency Step",
++	"Volume Ramp Up Rate",
++	"Volume Ramp Down Rate",
++	"Volume Ramp Up Step",
++	"Volume Ramp Down Step"
++};
++
+ static int snd_allo_piano_dac_init(struct snd_soc_pcm_runtime *rtd)
+ {
+ 	struct snd_soc_card *card = rtd->card;
+ 	struct glb_pool *glb_ptr;
++	struct snd_kcontrol *kctl;
++	int i, j;
+ 
+ 	glb_ptr = kzalloc(sizeof(struct glb_pool), GFP_KERNEL);
+ 	if (!glb_ptr)
+@@ -698,12 +750,36 @@ static int snd_allo_piano_dac_init(struc
+ 	if (digital_gain_0db_limit) {
+ 		int ret;
+ 
+-		ret = snd_soc_limit_volume(card, "Digital Playback Volume",
+-					207);
+-		if (ret < 0)
+-			dev_warn(card->dev, "Failed to set volume limit: %d\n",
+-				ret);
++		//Set volume limit on both dacs
++		for (i = 0; i < ARRAY_SIZE(codec_ctl_pfx); i++) {
++			char cname[256];
++
++			sprintf(cname, "%s %s", codec_ctl_pfx[i], codec_ctl_name[0]);
++			ret = snd_soc_limit_volume(card, cname, 207);
++			if (ret < 0)
++				dev_warn(card->dev, "Failed to set volume limit: %d\n",
++					ret);
++		}
++	}
++
++	// Remove codec controls
++	for (i = 0; i < ARRAY_SIZE(codec_ctl_pfx); i++) {
++		for (j = 0; j < ARRAY_SIZE(codec_ctl_name); j++) {
++			char cname[256];
++
++			sprintf(cname, "%s %s", codec_ctl_pfx[i], codec_ctl_name[j]);
++			kctl = snd_soc_card_get_kcontrol(card, cname);
++			if (!kctl) {
++				dev_err(rtd->card->dev, "Control %s not found\n",
++				       cname);
++			} else {
++				kctl->vd[0].access =
++					SNDRV_CTL_ELEM_ACCESS_READWRITE;
++				snd_ctl_remove(card->snd_card, kctl);
++			}
++		}
+ 	}
++
+ 	return 0;
+ }
+ 
+@@ -842,10 +918,10 @@ static struct snd_soc_dai_link_component
+ };
+ 
+ SND_SOC_DAILINK_DEFS(allo_piano_dai_plus,
+-	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
+-	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "pcm512x-hifi"),
+-			   COMP_CODEC(NULL, "pcm512x-hifi")),
+-	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++	DAILINK_COMP_ARRAY(COMP_EMPTY()),
++	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004c", "pcm512x-hifi"),
++			   COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi")),
++	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+ 
+ static struct snd_soc_dai_link snd_allo_piano_dac_dai[] = {
+ 	{
diff --git a/target/linux/bcm27xx/patches-5.10/950-0527-drm-connector-Create-a-helper-to-attach-the-hdr_outp.patch b/target/linux/bcm27xx/patches-5.10/950-0527-drm-connector-Create-a-helper-to-attach-the-hdr_outp.patch
new file mode 100644
index 0000000000..7799301d98
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0527-drm-connector-Create-a-helper-to-attach-the-hdr_outp.patch
@@ -0,0 +1,99 @@
+From c65eada45c578cfb558ee9a92ce5048a367692d7 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 19 Mar 2021 11:21:41 +0100
+Subject: [PATCH] drm/connector: Create a helper to attach the
+ hdr_output_metadata property
+
+All the drivers that implement HDR output call pretty much the same
+function to initialise the hdr_output_metadata property, and while the
+creation of that property is in a helper, every driver uses the same
+code to attach it.
+
+Provide a helper for it as well
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 +---
+ drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     |  3 +--
+ drivers/gpu/drm/drm_connector.c               | 21 +++++++++++++++++++
+ drivers/gpu/drm/i915/display/intel_hdmi.c     |  3 +--
+ include/drm/drm_connector.h                   |  1 +
+ 5 files changed, 25 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -6524,9 +6524,7 @@ void amdgpu_dm_connector_init_helper(str
+ 	if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
+ 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
+-		drm_object_attach_property(
+-			&aconnector->base.base,
+-			dm->ddev->mode_config.hdr_output_metadata_property, 0);
++		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
+ 
+ 		if (!aconnector->mst_port)
+ 			drm_connector_attach_vrr_capable_property(&aconnector->base);
+--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+@@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(stru
+ 	drm_connector_attach_max_bpc_property(connector, 8, 16);
+ 
+ 	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
+-		drm_object_attach_property(&connector->base,
+-			connector->dev->mode_config.hdr_output_metadata_property, 0);
++		drm_connector_attach_hdr_output_metadata_property(connector);
+ 
+ 	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
+ 
+--- a/drivers/gpu/drm/drm_connector.c
++++ b/drivers/gpu/drm/drm_connector.c
+@@ -2144,6 +2144,27 @@ int drm_connector_attach_max_bpc_propert
+ EXPORT_SYMBOL(drm_connector_attach_max_bpc_property);
+ 
+ /**
++ * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property
++ * @connector: connector to attach the property on.
++ *
++ * This is used to allow the userspace to send HDR Metadata to the
++ * driver.
++ *
++ * Returns:
++ * Zero on success, negative errno on failure.
++ */
++int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector)
++{
++	struct drm_device *dev = connector->dev;
++	struct drm_property *prop = dev->mode_config.hdr_output_metadata_property;
++
++	drm_object_attach_property(&connector->base, prop, 0);
++
++	return 0;
++}
++EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
++
++/**
+  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
+  * capable property for a connector
+  * @connector: drm connector
+--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
++++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
+@@ -2971,8 +2971,7 @@ intel_hdmi_add_properties(struct intel_h
+ 	drm_connector_attach_content_type_property(connector);
+ 
+ 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
+-		drm_object_attach_property(&connector->base,
+-			connector->dev->mode_config.hdr_output_metadata_property, 0);
++		drm_connector_attach_hdr_output_metadata_property(connector);
+ 
+ 	if (!HAS_GMCH(dev_priv))
+ 		drm_connector_attach_max_bpc_property(connector, 8, 12);
+--- a/include/drm/drm_connector.h
++++ b/include/drm/drm_connector.h
+@@ -1622,6 +1622,7 @@ int drm_connector_attach_scaling_mode_pr
+ 					       u32 scaling_mode_mask);
+ int drm_connector_attach_vrr_capable_property(
+ 		struct drm_connector *connector);
++int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+ int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
+ int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
+ int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0528-drm-connector-Add-helper-to-compare-HDR-metadata.patch b/target/linux/bcm27xx/patches-5.10/950-0528-drm-connector-Add-helper-to-compare-HDR-metadata.patch
new file mode 100644
index 0000000000..e9f664132e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0528-drm-connector-Add-helper-to-compare-HDR-metadata.patch
@@ -0,0 +1,168 @@
+From 5278eeece5b7b66019cf9c1a833c815cff9819ec Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 19 Mar 2021 13:05:53 +0100
+Subject: [PATCH] drm/connector: Add helper to compare HDR metadata
+
+All the drivers that support the HDR metadata property have a similar
+function to compare the metadata from one connector state to the next,
+and force a mode change if they differ.
+
+All these functions run pretty much the same code, so let's turn it into
+an helper that can be shared across those drivers.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 +-------------
+ drivers/gpu/drm/bridge/synopsys/dw-hdmi.c     | 17 +----------
+ drivers/gpu/drm/drm_connector.c               | 28 +++++++++++++++++++
+ drivers/gpu/drm/i915/display/intel_atomic.c   | 13 +--------
+ include/drm/drm_connector.h                   |  2 ++
+ 5 files changed, 33 insertions(+), 48 deletions(-)
+
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -5472,25 +5472,6 @@ static int fill_hdr_info_packet(const st
+ 	return 0;
+ }
+ 
+-static bool
+-is_hdr_metadata_different(const struct drm_connector_state *old_state,
+-			  const struct drm_connector_state *new_state)
+-{
+-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+-
+-	if (old_blob != new_blob) {
+-		if (old_blob && new_blob &&
+-		    old_blob->length == new_blob->length)
+-			return memcmp(old_blob->data, new_blob->data,
+-				      old_blob->length);
+-
+-		return true;
+-	}
+-
+-	return false;
+-}
+-
+ static int
+ amdgpu_dm_connector_atomic_check(struct drm_connector *conn,
+ 				 struct drm_atomic_state *state)
+@@ -5506,7 +5487,7 @@ amdgpu_dm_connector_atomic_check(struct
+ 	if (!crtc)
+ 		return 0;
+ 
+-	if (is_hdr_metadata_different(old_con_state, new_con_state)) {
++	if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) {
+ 		struct dc_info_packet hdr_infopacket;
+ 
+ 		ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket);
+--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+@@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(s
+ 	return ret;
+ }
+ 
+-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
+-			       const struct drm_connector_state *new_state)
+-{
+-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+-
+-	if (!old_blob || !new_blob)
+-		return old_blob == new_blob;
+-
+-	if (old_blob->length != new_blob->length)
+-		return false;
+-
+-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+-}
+-
+ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
+ 					  struct drm_atomic_state *state)
+ {
+@@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_chec
+ 	if (!crtc)
+ 		return 0;
+ 
+-	if (!hdr_metadata_equal(old_state, new_state)) {
++	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+ 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+ 		if (IS_ERR(crtc_state))
+ 			return PTR_ERR(crtc_state);
+--- a/drivers/gpu/drm/drm_connector.c
++++ b/drivers/gpu/drm/drm_connector.c
+@@ -2165,6 +2165,34 @@ int drm_connector_attach_hdr_output_meta
+ EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+ 
+ /**
++ * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
++ * @old_state: old connector state to compare
++ * @new_state: new connector state to compare
++ *
++ * This is used by HDR-enabled drivers to test whether the HDR metadata
++ * have changed between two different connector state (and thus probably
++ * requires a full blown mode change).
++ *
++ * Returns:
++ * True if the metadata are equal, False otherwise
++ */
++bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
++					     struct drm_connector_state *new_state)
++{
++	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
++	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
++
++	if (!old_blob || !new_blob)
++		return old_blob == new_blob;
++
++	if (old_blob->length != new_blob->length)
++		return false;
++
++	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
++}
++EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal);
++
++/**
+  * drm_connector_set_vrr_capable_property - sets the variable refresh rate
+  * capable property for a connector
+  * @connector: drm connector
+--- a/drivers/gpu/drm/i915/display/intel_atomic.c
++++ b/drivers/gpu/drm/i915/display/intel_atomic.c
+@@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_p
+ 	return -EINVAL;
+ }
+ 
+-static bool blob_equal(const struct drm_property_blob *a,
+-		       const struct drm_property_blob *b)
+-{
+-	if (a && b)
+-		return a->length == b->length &&
+-			!memcmp(a->data, b->data, a->length);
+-
+-	return !a == !b;
+-}
+-
+ int intel_digital_connector_atomic_check(struct drm_connector *conn,
+ 					 struct drm_atomic_state *state)
+ {
+@@ -150,8 +140,7 @@ int intel_digital_connector_atomic_check
+ 	    new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||
+ 	    new_conn_state->base.content_type != old_conn_state->base.content_type ||
+ 	    new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||
+-	    !blob_equal(new_conn_state->base.hdr_output_metadata,
+-			old_conn_state->base.hdr_output_metadata))
++	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))
+ 		crtc_state->mode_changed = true;
+ 
+ 	return 0;
+--- a/include/drm/drm_connector.h
++++ b/include/drm/drm_connector.h
+@@ -1623,6 +1623,8 @@ int drm_connector_attach_scaling_mode_pr
+ int drm_connector_attach_vrr_capable_property(
+ 		struct drm_connector *connector);
+ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
++bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
++					     struct drm_connector_state *new_state);
+ int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
+ int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector);
+ int drm_mode_create_dp_colorspace_property(struct drm_connector *connector);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0529-drm-vc4-Use-the-new-helpers.patch b/target/linux/bcm27xx/patches-5.10/950-0529-drm-vc4-Use-the-new-helpers.patch
new file mode 100644
index 0000000000..16412f8efe
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0529-drm-vc4-Use-the-new-helpers.patch
@@ -0,0 +1,62 @@
+From b29e72769f843afeb4585c5310f8bf23c0277daf Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 9 Apr 2021 17:31:55 +0200
+Subject: [PATCH] drm/vc4: Use the new helpers
+
+We just introduced new helpers, so let's use them.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 23 ++++-------------------
+ 1 file changed, 4 insertions(+), 19 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -223,21 +223,6 @@ static int vc4_hdmi_connector_get_modes(
+ 	return ret;
+ }
+ 
+-static bool hdr_metadata_equal(const struct drm_connector_state *old_state,
+-			       const struct drm_connector_state *new_state)
+-{
+-	struct drm_property_blob *old_blob = old_state->hdr_output_metadata;
+-	struct drm_property_blob *new_blob = new_state->hdr_output_metadata;
+-
+-	if (!old_blob || !new_blob)
+-		return old_blob == new_blob;
+-
+-	if (old_blob->length != new_blob->length)
+-		return false;
+-
+-	return !memcmp(old_blob->data, new_blob->data, old_blob->length);
+-}
+-
+ static int vc4_hdmi_connector_atomic_check(struct drm_connector *connector,
+ 					  struct drm_atomic_state *state)
+ {
+@@ -246,12 +231,13 @@ static int vc4_hdmi_connector_atomic_che
+ 	struct drm_connector_state *new_state =
+ 		drm_atomic_get_new_connector_state(state, connector);
+ 	struct drm_crtc *crtc = new_state->crtc;
+-	struct drm_crtc_state *crtc_state;
+ 
+ 	if (!crtc)
+ 		return 0;
+ 
+-	if (!hdr_metadata_equal(old_state, new_state)) {
++	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
++		struct drm_crtc_state *crtc_state;
++
+ 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+ 		if (IS_ERR(crtc_state))
+ 			return PTR_ERR(crtc_state);
+@@ -350,8 +336,7 @@ static int vc4_hdmi_connector_init(struc
+ 	connector->stereo_allowed = 1;
+ 
+ 	if (vc4_hdmi->variant->supports_hdr)
+-		drm_object_attach_property(&connector->base,
+-			connector->dev->mode_config.hdr_output_metadata_property, 0);
++		drm_connector_attach_hdr_output_metadata_property(connector);
+ 
+ 	drm_connector_attach_encoder(connector, encoder);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0530-drm-connector-Add-a-helper-to-attach-the-colorspace-.patch b/target/linux/bcm27xx/patches-5.10/950-0530-drm-connector-Add-a-helper-to-attach-the-colorspace-.patch
new file mode 100644
index 0000000000..6cae581ab2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0530-drm-connector-Add-a-helper-to-attach-the-colorspace-.patch
@@ -0,0 +1,66 @@
+From a7f87202ec94410eabff8df2f4fced0141794a9a Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 9 Apr 2021 17:07:32 +0200
+Subject: [PATCH] drm/connector: Add a helper to attach the colorspace
+ property
+
+The intel driver uses the same logic to attach the Colorspace property
+in multiple places and we'll need it in vc4 too. Let's move that common
+code in a helper.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/drm_connector.c               | 20 +++++++++++++++++++
+ .../gpu/drm/i915/display/intel_connector.c    |  3 +--
+ include/drm/drm_connector.h                   |  1 +
+ 3 files changed, 22 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/drm_connector.c
++++ b/drivers/gpu/drm/drm_connector.c
+@@ -2165,6 +2165,26 @@ int drm_connector_attach_hdr_output_meta
+ EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
+ 
+ /**
++ * drm_connector_attach_colorspace_property - attach "Colorspace" property
++ * @connector: connector to attach the property on.
++ *
++ * This is used to allow the userspace to signal the output colorspace
++ * to the driver.
++ *
++ * Returns:
++ * Zero on success, negative errno on failure.
++ */
++int drm_connector_attach_colorspace_property(struct drm_connector *connector)
++{
++	struct drm_property *prop = connector->colorspace_property;
++
++	drm_object_attach_property(&connector->base, prop, DRM_MODE_COLORIMETRY_DEFAULT);
++
++	return 0;
++}
++EXPORT_SYMBOL(drm_connector_attach_colorspace_property);
++
++/**
+  * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
+  * @old_state: old connector state to compare
+  * @new_state: new connector state to compare
+--- a/drivers/gpu/drm/i915/display/intel_connector.c
++++ b/drivers/gpu/drm/i915/display/intel_connector.c
+@@ -297,6 +297,5 @@ intel_attach_colorspace_property(struct
+ 		return;
+ 	}
+ 
+-	drm_object_attach_property(&connector->base,
+-				   connector->colorspace_property, 0);
++	drm_connector_attach_colorspace_property(connector);
+ }
+--- a/include/drm/drm_connector.h
++++ b/include/drm/drm_connector.h
+@@ -1622,6 +1622,7 @@ int drm_connector_attach_scaling_mode_pr
+ 					       u32 scaling_mode_mask);
+ int drm_connector_attach_vrr_capable_property(
+ 		struct drm_connector *connector);
++int drm_connector_attach_colorspace_property(struct drm_connector *connector);
+ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
+ bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
+ 					     struct drm_connector_state *new_state);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0531-drm-vc4-hdmi-Signal-the-proper-colorimetry-info-in-t.patch b/target/linux/bcm27xx/patches-5.10/950-0531-drm-vc4-hdmi-Signal-the-proper-colorimetry-info-in-t.patch
new file mode 100644
index 0000000000..25ad2a2bb0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0531-drm-vc4-hdmi-Signal-the-proper-colorimetry-info-in-t.patch
@@ -0,0 +1,50 @@
+From c1e98dfad80bdb512cd04c9ed5d989a5f0f6b13d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 9 Apr 2021 17:16:42 +0200
+Subject: [PATCH] drm/vc4: hdmi: Signal the proper colorimetry info in
+ the infoframe
+
+Our driver while supporting HDR didn't send the proper colorimetry info
+in the AVI infoframe.
+
+Let's add the property needed so that the userspace can let us know what
+the colorspace is supposed to be.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -235,7 +235,8 @@ static int vc4_hdmi_connector_atomic_che
+ 	if (!crtc)
+ 		return 0;
+ 
+-	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
++	if (old_state->colorspace != new_state->colorspace ||
++	    !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+ 		struct drm_crtc_state *crtc_state;
+ 
+ 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+@@ -325,6 +326,11 @@ static int vc4_hdmi_connector_init(struc
+ 	if (ret)
+ 		return ret;
+ 
++	ret = drm_mode_create_hdmi_colorspace_property(connector);
++	if (ret)
++		return ret;
++
++	drm_connector_attach_colorspace_property(connector);
+ 	drm_connector_attach_tv_margin_properties(connector);
+ 	drm_connector_attach_max_bpc_property(connector, 8, 12);
+ 
+@@ -439,7 +445,7 @@ static void vc4_hdmi_set_avi_infoframe(s
+ 					   vc4_encoder->limited_rgb_range ?
+ 					   HDMI_QUANTIZATION_RANGE_LIMITED :
+ 					   HDMI_QUANTIZATION_RANGE_FULL);
+-
++	drm_hdmi_avi_infoframe_colorspace(&frame.avi, cstate);
+ 	drm_hdmi_avi_infoframe_bars(&frame.avi, cstate);
+ 
+ 	vc4_hdmi_write_infoframe(encoder, &frame);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0532-staging-vcsm-cma-Fix-memory-leak-from-not-detaching-.patch b/target/linux/bcm27xx/patches-5.10/950-0532-staging-vcsm-cma-Fix-memory-leak-from-not-detaching-.patch
new file mode 100644
index 0000000000..6e42556247
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0532-staging-vcsm-cma-Fix-memory-leak-from-not-detaching-.patch
@@ -0,0 +1,77 @@
+From db7b984f1957e5a26775a62a78e60df3f2da671f Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 4 Nov 2020 18:54:20 +0000
+Subject: [PATCH] staging: vcsm-cma: Fix memory leak from not detaching
+ dmabuf
+
+When importing there was a missing call to detach the buffer,
+so each import leaked the sg table entry.
+
+Actually the release process for both locally allocated and
+imported buffers is identical, so fix them to both use the same
+function.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../staging/vc04_services/vc-sm-cma/vc_sm.c   | 22 ++-----------------
+ 1 file changed, 2 insertions(+), 20 deletions(-)
+
+--- a/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
++++ b/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c
+@@ -237,6 +237,7 @@ static void vc_sm_add_resource(struct vc
+ 
+ /*
+  * Cleans up imported dmabuf.
++ * Should be called with mutex held.
+  */
+ static void vc_sm_clean_up_dmabuf(struct vc_sm_buffer *buffer)
+ {
+@@ -244,7 +245,6 @@ static void vc_sm_clean_up_dmabuf(struct
+ 		return;
+ 
+ 	/* Handle cleaning up imported dmabufs */
+-	mutex_lock(&buffer->lock);
+ 	if (buffer->import.sgt) {
+ 		dma_buf_unmap_attachment(buffer->import.attach,
+ 					 buffer->import.sgt,
+@@ -255,7 +255,6 @@ static void vc_sm_clean_up_dmabuf(struct
+ 		dma_buf_detach(buffer->dma_buf, buffer->import.attach);
+ 		buffer->import.attach = NULL;
+ 	}
+-	mutex_unlock(&buffer->lock);
+ }
+ 
+ /*
+@@ -673,23 +672,6 @@ int vc_sm_import_dmabuf_mmap(struct dma_
+ }
+ 
+ static
+-void vc_sm_import_dma_buf_release(struct dma_buf *dmabuf)
+-{
+-	struct vc_sm_buffer *buf = dmabuf->priv;
+-
+-	pr_debug("%s: Relasing dma_buf %p\n", __func__, dmabuf);
+-	mutex_lock(&buf->lock);
+-	if (!buf->imported)
+-		return;
+-
+-	buf->in_use = 0;
+-
+-	vc_sm_vpu_free(buf);
+-
+-	vc_sm_release_resource(buf);
+-}
+-
+-static
+ int vc_sm_import_dma_buf_begin_cpu_access(struct dma_buf *dmabuf,
+ 					  enum dma_data_direction direction)
+ {
+@@ -717,7 +699,7 @@ static const struct dma_buf_ops dma_buf_
+ 	.map_dma_buf = vc_sm_import_map_dma_buf,
+ 	.unmap_dma_buf = vc_sm_import_unmap_dma_buf,
+ 	.mmap = vc_sm_import_dmabuf_mmap,
+-	.release = vc_sm_import_dma_buf_release,
++	.release = vc_sm_dma_buf_release,
+ 	.attach = vc_sm_import_dma_buf_attach,
+ 	.detach = vc_sm_import_dma_buf_detatch,
+ 	.begin_cpu_access = vc_sm_import_dma_buf_begin_cpu_access,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0533-vc4-kms-vc4_plane-Support-2020-colourspace-for-yuv-p.patch b/target/linux/bcm27xx/patches-5.10/950-0533-vc4-kms-vc4_plane-Support-2020-colourspace-for-yuv-p.patch
new file mode 100644
index 0000000000..85bccb24be
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0533-vc4-kms-vc4_plane-Support-2020-colourspace-for-yuv-p.patch
@@ -0,0 +1,105 @@
+From f5c7dd20b383a4ab8212736b37940a4339d80e33 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 12 Apr 2021 17:27:43 +0100
+Subject: [PATCH] vc4/kms: vc4_plane: Support 2020 colourspace for yuv
+ planes
+
+https://gist.github.com/popcornmix/6b3e23103c60170b02b148e0ba5d6ed7
+
+is the script used to generate the 601, 709 and 2020 colourspaces.
+I've regenetated the existing ones using script so it is reprocable
+but there are lsb dfferences compared to values here (copied from spec)
+whose origin is now lost.
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 19 ++++++++++---------
+ drivers/gpu/drm/vc4/vc4_regs.h  | 18 ++++++++++++------
+ 2 files changed, 22 insertions(+), 15 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -644,10 +644,10 @@ static const u32 colorspace_coeffs[2][DR
+ 			SCALER_CSC1_ITR_R_709_3,
+ 			SCALER_CSC2_ITR_R_709_3,
+ 		}, {
+-			/* BT2020. Not supported yet - copy 601 */
+-			SCALER_CSC0_ITR_R_601_5,
+-			SCALER_CSC1_ITR_R_601_5,
+-			SCALER_CSC2_ITR_R_601_5,
++			/* BT2020 */
++			SCALER_CSC0_ITR_R_2020,
++			SCALER_CSC1_ITR_R_2020,
++			SCALER_CSC2_ITR_R_2020,
+ 		}
+ 	}, {
+ 		/* Full range */
+@@ -662,10 +662,10 @@ static const u32 colorspace_coeffs[2][DR
+ 			SCALER_CSC1_ITR_R_709_3_FR,
+ 			SCALER_CSC2_ITR_R_709_3_FR,
+ 		}, {
+-			/* BT2020. Not supported yet - copy JFIF */
+-			SCALER_CSC0_JPEG_JFIF,
+-			SCALER_CSC1_JPEG_JFIF,
+-			SCALER_CSC2_JPEG_JFIF,
++			/* BT2020 */
++			SCALER_CSC0_ITR_R_2020_FR,
++			SCALER_CSC1_ITR_R_2020_FR,
++			SCALER_CSC2_ITR_R_2020_FR,
+ 		}
+ 	}
+ };
+@@ -1487,7 +1487,8 @@ struct drm_plane *vc4_plane_init(struct
+ 
+ 	drm_plane_create_color_properties(plane,
+ 					  BIT(DRM_COLOR_YCBCR_BT601) |
+-					  BIT(DRM_COLOR_YCBCR_BT709),
++					  BIT(DRM_COLOR_YCBCR_BT709) |
++					  BIT(DRM_COLOR_YCBCR_BT2020),
+ 					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
+ 					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
+ 					  DRM_COLOR_YCBCR_BT709,
+--- a/drivers/gpu/drm/vc4/vc4_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_regs.h
+@@ -975,8 +975,10 @@ enum hvs_pixel_format {
+ #define SCALER_CSC0_COEF_CR_OFS_SHIFT		0
+ #define SCALER_CSC0_ITR_R_601_5			0x00f00000
+ #define SCALER_CSC0_ITR_R_709_3			0x00f00000
++#define SCALER_CSC0_ITR_R_2020			0x00f00000
+ #define SCALER_CSC0_JPEG_JFIF			0x00000000
+ #define SCALER_CSC0_ITR_R_709_3_FR		0x00000000
++#define SCALER_CSC0_ITR_R_2020_FR		0x00000000
+ 
+ /* S2.8 contribution of Cb to Green */
+ #define SCALER_CSC1_COEF_CB_GRN_MASK		VC4_MASK(31, 22)
+@@ -991,9 +993,11 @@ enum hvs_pixel_format {
+ #define SCALER_CSC1_COEF_CR_BLU_MASK		VC4_MASK(1, 0)
+ #define SCALER_CSC1_COEF_CR_BLU_SHIFT		0
+ #define SCALER_CSC1_ITR_R_601_5			0xe73304a8
+-#define SCALER_CSC1_ITR_R_709_3			0xf2b784a8
+-#define SCALER_CSC1_JPEG_JFIF			0xea34a400
+-#define SCALER_CSC1_ITR_R_709_3_FR		0xe23d0400
++#define SCALER_CSC1_ITR_R_709_3			0xf27784a8
++#define SCALER_CSC1_ITR_R_2020			0xf43594a8
++#define SCALER_CSC1_JPEG_JFIF			0xea349400
++#define SCALER_CSC1_ITR_R_709_3_FR		0xf4388400
++#define SCALER_CSC1_ITR_R_2020_FR		0xf5b6d400
+ 
+ /* S2.8 contribution of Cb to Red */
+ #define SCALER_CSC2_COEF_CB_RED_MASK		VC4_MASK(29, 20)
+@@ -1004,10 +1008,12 @@ enum hvs_pixel_format {
+ /* S2.8 contribution of Cb to Blue */
+ #define SCALER_CSC2_COEF_CB_BLU_MASK		VC4_MASK(19, 10)
+ #define SCALER_CSC2_COEF_CB_BLU_SHIFT		10
+-#define SCALER_CSC2_ITR_R_601_5			0x00066204
+-#define SCALER_CSC2_ITR_R_709_3			0x00072a1c
+-#define SCALER_CSC2_JPEG_JFIF			0x000599c5
++#define SCALER_CSC2_ITR_R_601_5			0x00066604
++#define SCALER_CSC2_ITR_R_709_3			0x00072e1d
++#define SCALER_CSC2_ITR_R_2020			0x0006b624
++#define SCALER_CSC2_JPEG_JFIF			0x00059dc6
+ #define SCALER_CSC2_ITR_R_709_3_FR		0x00064ddb
++#define SCALER_CSC2_ITR_R_2020_FR		0x0005e5e2
+ 
+ #define SCALER_TPZ0_VERT_RECALC			BIT(31)
+ #define SCALER_TPZ0_SCALE_MASK			VC4_MASK(28, 8)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0534-sound-usb-add-device-quirks-for-A4Tech-FHD-1080p-web.patch b/target/linux/bcm27xx/patches-5.10/950-0534-sound-usb-add-device-quirks-for-A4Tech-FHD-1080p-web.patch
new file mode 100644
index 0000000000..376bc60711
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0534-sound-usb-add-device-quirks-for-A4Tech-FHD-1080p-web.patch
@@ -0,0 +1,45 @@
+From 42fbd61f4775d9ec9e7a1d1833565a45581efb27 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.com>
+Date: Thu, 15 Apr 2021 13:15:14 +0100
+Subject: [PATCH] sound/usb: add device quirks for A4Tech FHD 1080p
+ webcams
+
+These devices use a type of Sonix chipset that produces broken microphone
+data if suspended/resumed.
+
+They also don't support readback of the sample rate.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ sound/usb/quirks-table.h | 9 +++++++++
+ sound/usb/quirks.c       | 1 +
+ 2 files changed, 10 insertions(+)
+
+--- a/sound/usb/quirks-table.h
++++ b/sound/usb/quirks-table.h
+@@ -47,6 +47,15 @@
+ },
+ 
+ {
++	/* A4Tech FHD 1080p webcam */
++	USB_DEVICE(0x09da, 0x2695),
++	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
++		.ifnum = QUIRK_ANY_INTERFACE,
++		.type = QUIRK_SETUP_DISABLE_AUTOSUSPEND
++	}
++},
++
++{
+ 	/* Creative BT-D1 */
+ 	USB_DEVICE(0x041e, 0x0005),
+ 	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -1530,6 +1530,7 @@ bool snd_usb_get_sample_rate_quirk(struc
+ 	case USB_ID(0x2912, 0x30c8): /* Audioengine D1 */
+ 	case USB_ID(0x413c, 0xa506): /* Dell AE515 sound bar */
+ 	case USB_ID(0x046d, 0x084c): /* Logitech ConferenceCam Connect */
++	case USB_ID(0x09da, 0x2695): /* A4Tech FHD 1080p webcam */
+ 		return true;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0535-sound-usb-call-usb_autopm_get_interface-for-devices-.patch b/target/linux/bcm27xx/patches-5.10/950-0535-sound-usb-call-usb_autopm_get_interface-for-devices-.patch
new file mode 100644
index 0000000000..3b4a78d21b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0535-sound-usb-call-usb_autopm_get_interface-for-devices-.patch
@@ -0,0 +1,33 @@
+From ec43e93b7e36e2baa6685da504b9db3ac7048ceb Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.com>
+Date: Fri, 16 Apr 2021 11:40:23 +0100
+Subject: [PATCH] sound/usb: call usb_autopm_get_interface() for
+ devices that should not be suspended
+
+Webcams with microphones are composite devices, and autosuspend is set
+at the device level. If uvcvideo is probed after snd-usb-audio, the effect
+of the quirk applied by snd-usb-audio is undone by uvcvideo's global
+application of autosuspend.
+
+Incrementing the interface's PM refcount in such cases prevents runtime PM
+from happening, thus the device is left active.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ sound/usb/quirks.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/sound/usb/quirks.c
++++ b/sound/usb/quirks.c
+@@ -531,6 +531,11 @@ static int setup_disable_autosuspend(str
+ 				       struct usb_driver *driver,
+ 				       const struct snd_usb_audio_quirk *quirk)
+ {
++	/*
++	 * Grab the interface, because on a webcam uvcvideo may race
++	 * with snd-usb-audio during probe and re-enable autosuspend.
++	 */
++	usb_autopm_get_interface(iface);
+ 	usb_disable_autosuspend(interface_to_usbdev(iface));
+ 	return 1;	/* Continue with creating streams and mixer */
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch b/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch
new file mode 100644
index 0000000000..0a7187623b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch
@@ -0,0 +1,86 @@
+From e56470876bda3751a1926aa5876495e3678e363f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 16 Apr 2021 09:31:17 +0100
+Subject: [PATCH] overlays: ghost-amp: Add DAC mute control
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../boot/dts/overlays/ghost-amp-overlay.dts   | 28 +++++++++++--------
+ 1 file changed, 17 insertions(+), 11 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -4,10 +4,11 @@
+ 
+ #include <dt-bindings/gpio/gpio-fsm.h>
+ 
+-#define ENABLE GF_SW(0)
+-#define FAULT  GF_IP(0) // GPIO5
+-#define RELAY1 GF_OP(0) // GPIO22
+-#define RELAY2 GF_OP(1) // GPIO23
++#define ENABLE   GF_SW(0)
++#define FAULT    GF_IP(0) // GPIO5
++#define RELAY1   GF_OP(0) // GPIO22
++#define RELAY2   GF_OP(1) // GPIO23
++#define RELAYSSR GF_OP(2) // GPIO24
+ 
+ / {
+ 	compatible = "brcm,bcm2835";
+@@ -64,14 +65,16 @@
+ 				gpio-line-names = "enable";
+ 				input-gpios  = <&gpio 5 1>;  // FAULT (active low)
+ 				output-gpios = <&gpio 22 0>, // RELAY1
+-					       <&gpio 23 0>; // RELAY2
++					       <&gpio 23 0>, // RELAY2
++					       <&gpio 24 0>; // RELAYSSR
+ 				shutdown-timeout-ms = <1000>;
+ 
+ 				amp_off {
+ 					start_state;
+ 					shutdown_state;
+ 
+-					set = <RELAY2 0>,
++					set = <RELAYSSR 0>,
++					      <RELAY2 0>,
+ 					      <RELAY1 0>;
+ 					amp_on_1 = <ENABLE 1>;
+ 					fault = <FAULT 1>;
+@@ -85,12 +88,14 @@
+ 				};
+ 
+ 				amp_on {
+-					set = <RELAY2 1>;
++					set = <RELAY2 1>,
++					      <RELAYSSR 1>;
+ 					amp_on_wait = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+ 				amp_on_wait {
++					set = <RELAYSSR 0>;
+ 					amp_off_1 = <GF_DELAY (30*60*1000)>,
+ 						    <GF_SHUTDOWN 0>;
+ 					amp_on = <ENABLE 1>;
+@@ -107,7 +112,8 @@
+ 				// Keep this a distinct state to prevent
+ 				// changes and for the diagnostic output
+ 				fault {
+-					set = <RELAY2 0>,
++					set = <RELAYSSR 0>,
++					      <RELAY2 0>,
+ 					      <RELAY1 0>;
+ 					amp_off = <FAULT 0>;
+ 					shutdown_state;
+@@ -120,9 +126,9 @@
+ 		target = <&gpio>;
+ 		__overlay__ {
+ 			ghost_amp_pins: ghost_amp_pins {
+-				brcm,pins = <5 22 23>;
+-				brcm,function = <0 1 1>; /* in out out */
+-				brcm,pull = <2 0 0>; /* up none none */
++				brcm,pins = <5 22 23 24>;
++				brcm,function = <0 1 1 1>; /* in out out out */
++				brcm,pull = <2 0 0 0>; /* up none none none */
+ 			};
+ 		};
+ 	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0537-clk-Introduce-a-clock-request-API.patch b/target/linux/bcm27xx/patches-5.10/950-0537-clk-Introduce-a-clock-request-API.patch
new file mode 100644
index 0000000000..ba14120aa9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0537-clk-Introduce-a-clock-request-API.patch
@@ -0,0 +1,284 @@
+From d937a5c25139dd919d857a8e4a6491917b568176 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 13 Apr 2021 11:00:01 +0200
+Subject: [PATCH] clk: Introduce a clock request API
+
+It's not unusual to find clocks being shared across multiple devices
+that need to change the rate depending on what the device is doing at a
+given time.
+
+The SoC found on the RaspberryPi4 (BCM2711) is in such a situation
+between its two HDMI controllers that share a clock that needs to be
+raised depending on the output resolution of each controller.
+
+The current clk_set_rate API doesn't really allow to support that case
+since there's really no synchronisation between multiple users, it's
+essentially a fire-and-forget solution.
+
+clk_set_min_rate does allow for such a synchronisation, but has another
+drawback: it doesn't allow to reduce the clock rate once the work is
+over.
+
+In our previous example, this means that if we were to raise the
+resolution of one HDMI controller to the largest resolution and then
+changing for a smaller one, we would still have the clock running at the
+largest resolution rate resulting in a poor power-efficiency.
+
+In order to address both issues, let's create an API that allows user to
+create temporary requests to increase the rate to a minimum, before
+going back to the initial rate once the request is done.
+
+This introduces mainly two side-effects:
+
+  * There's an interaction between clk_set_rate and requests. This has
+    been addressed by having clk_set_rate increasing the rate if it's
+    greater than what the requests asked for, and in any case changing
+    the rate the clock will return to once all the requests are done.
+
+  * Similarly, clk_round_rate has been adjusted to take the requests
+    into account and return a rate that will be greater or equal to the
+    requested rates.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/clk.c   | 121 ++++++++++++++++++++++++++++++++++++++++++++
+ include/linux/clk.h |   4 ++
+ 2 files changed, 125 insertions(+)
+
+--- a/drivers/clk/clk.c
++++ b/drivers/clk/clk.c
+@@ -77,12 +77,14 @@ struct clk_core {
+ 	unsigned int		protect_count;
+ 	unsigned long		min_rate;
+ 	unsigned long		max_rate;
++	unsigned long		default_request_rate;
+ 	unsigned long		accuracy;
+ 	int			phase;
+ 	struct clk_duty		duty;
+ 	struct hlist_head	children;
+ 	struct hlist_node	child_node;
+ 	struct hlist_head	clks;
++	struct list_head	pending_requests;
+ 	unsigned int		notifier_count;
+ #ifdef CONFIG_DEBUG_FS
+ 	struct dentry		*dentry;
+@@ -105,6 +107,12 @@ struct clk {
+ 	struct hlist_node clks_node;
+ };
+ 
++struct clk_request {
++	struct list_head list;
++	struct clk *clk;
++	unsigned long rate;
++};
++
+ /***           runtime pm          ***/
+ static int clk_pm_runtime_get(struct clk_core *core)
+ {
+@@ -1413,10 +1421,14 @@ unsigned long clk_hw_round_rate(struct c
+ {
+ 	int ret;
+ 	struct clk_rate_request req;
++	struct clk_request *clk_req;
+ 
+ 	clk_core_get_boundaries(hw->core, &req.min_rate, &req.max_rate);
+ 	req.rate = rate;
+ 
++	list_for_each_entry(clk_req, &hw->core->pending_requests, list)
++		req.min_rate = max(clk_req->rate, req.min_rate);
++
+ 	ret = clk_core_round_rate_nolock(hw->core, &req);
+ 	if (ret)
+ 		return 0;
+@@ -1437,6 +1449,7 @@ EXPORT_SYMBOL_GPL(clk_hw_round_rate);
+ long clk_round_rate(struct clk *clk, unsigned long rate)
+ {
+ 	struct clk_rate_request req;
++	struct clk_request *clk_req;
+ 	int ret;
+ 
+ 	if (!clk)
+@@ -1450,6 +1463,9 @@ long clk_round_rate(struct clk *clk, uns
+ 	clk_core_get_boundaries(clk->core, &req.min_rate, &req.max_rate);
+ 	req.rate = rate;
+ 
++	list_for_each_entry(clk_req, &clk->core->pending_requests, list)
++		req.min_rate = max(clk_req->rate, req.min_rate);
++
+ 	ret = clk_core_round_rate_nolock(clk->core, &req);
+ 
+ 	if (clk->exclusive_count)
+@@ -1917,6 +1933,7 @@ static struct clk_core *clk_calc_new_rat
+ 	unsigned long new_rate;
+ 	unsigned long min_rate;
+ 	unsigned long max_rate;
++	struct clk_request *req;
+ 	int p_index = 0;
+ 	long ret;
+ 
+@@ -1931,6 +1948,9 @@ static struct clk_core *clk_calc_new_rat
+ 
+ 	clk_core_get_boundaries(core, &min_rate, &max_rate);
+ 
++	list_for_each_entry(req, &core->pending_requests, list)
++		min_rate = max(req->rate, min_rate);
++
+ 	/* find the closest rate and parent clk/rate */
+ 	if (clk_core_can_round(core)) {
+ 		struct clk_rate_request req;
+@@ -2135,6 +2155,7 @@ static unsigned long clk_core_req_round_
+ {
+ 	int ret, cnt;
+ 	struct clk_rate_request req;
++	struct clk_request *clk_req;
+ 
+ 	lockdep_assert_held(&prepare_lock);
+ 
+@@ -2149,6 +2170,9 @@ static unsigned long clk_core_req_round_
+ 	clk_core_get_boundaries(core, &req.min_rate, &req.max_rate);
+ 	req.rate = req_rate;
+ 
++	list_for_each_entry(clk_req, &core->pending_requests, list)
++		req.min_rate = max(clk_req->rate, req.min_rate);
++
+ 	ret = clk_core_round_rate_nolock(core, &req);
+ 
+ 	/* restore the protection */
+@@ -2242,6 +2266,9 @@ int clk_set_rate(struct clk *clk, unsign
+ 
+ 	ret = clk_core_set_rate_nolock(clk->core, rate);
+ 
++	if (!list_empty(&clk->core->pending_requests))
++		clk->core->default_request_rate = rate;
++
+ 	if (clk->exclusive_count)
+ 		clk_core_rate_protect(clk->core);
+ 
+@@ -2402,6 +2429,99 @@ int clk_set_max_rate(struct clk *clk, un
+ EXPORT_SYMBOL_GPL(clk_set_max_rate);
+ 
+ /**
++ * clk_request_start - Request a rate to be enforced temporarily
++ * @clk: the clk to act on
++ * @rate: the new rate asked for
++ *
++ * This function will create a request to temporarily increase the rate
++ * of the clock to a given rate to a certain minimum.
++ *
++ * This is meant as a best effort mechanism and while the rate of the
++ * clock will be guaranteed to be equal or higher than the requested
++ * rate, there's none on what the actual rate will be due to other
++ * factors (other requests previously set, clock boundaries, etc.).
++ *
++ * Once the request is marked as done through clk_request_done(), the
++ * rate will be reverted back to what the rate was before the request.
++ *
++ * The reported boundaries of the clock will also be adjusted so that
++ * clk_round_rate() take those requests into account. A call to
++ * clk_set_rate() during a request will affect the rate the clock will
++ * return to after the requests on that clock are done.
++ *
++ * Returns 0 on success, an ERR_PTR otherwise.
++ */
++struct clk_request *clk_request_start(struct clk *clk, unsigned long rate)
++{
++	struct clk_request *req;
++	int ret;
++
++	if (!clk)
++		return ERR_PTR(-EINVAL);
++
++	req = kzalloc(sizeof(*req), GFP_KERNEL);
++	if (!req)
++		return ERR_PTR(-ENOMEM);
++
++	clk_prepare_lock();
++
++	req->clk = clk;
++	req->rate = rate;
++
++	if (list_empty(&clk->core->pending_requests))
++		clk->core->default_request_rate = clk_core_get_rate_recalc(clk->core);
++
++	ret = clk_core_set_rate_nolock(clk->core, rate);
++	if (ret) {
++		clk_prepare_unlock();
++		kfree(req);
++		return ERR_PTR(ret);
++	}
++
++	list_add_tail(&req->list, &clk->core->pending_requests);
++	clk_prepare_unlock();
++
++	return req;
++}
++EXPORT_SYMBOL_GPL(clk_request_start);
++
++/**
++ * clk_request_done - Mark a clk_request as done
++ * @req: the request to mark done
++ *
++ * This function will remove the rate request from the clock and adjust
++ * the clock rate back to either to what it was before the request
++ * started, or if there's any other request on that clock to a proper
++ * rate for them.
++ */
++void clk_request_done(struct clk_request *req)
++{
++	struct clk_core *core = req->clk->core;
++
++	clk_prepare_lock();
++
++	list_del(&req->list);
++
++	if (list_empty(&core->pending_requests)) {
++		clk_core_set_rate_nolock(core, core->default_request_rate);
++		core->default_request_rate = 0;
++	} else {
++		struct clk_request *cur_req;
++		unsigned long new_rate = 0;
++
++		list_for_each_entry(cur_req, &core->pending_requests, list)
++			new_rate = max(new_rate, cur_req->rate);
++
++		clk_core_set_rate_nolock(core, new_rate);
++	}
++
++	clk_prepare_unlock();
++
++	kfree(req);
++}
++EXPORT_SYMBOL_GPL(clk_request_done);
++
++/**
+  * clk_get_parent - return the parent of a clk
+  * @clk: the clk whose parent gets returned
+  *
+@@ -3811,6 +3931,7 @@ __clk_register(struct device *dev, struc
+ 		goto fail_parents;
+ 
+ 	INIT_HLIST_HEAD(&core->clks);
++	INIT_LIST_HEAD(&core->pending_requests);
+ 
+ 	/*
+ 	 * Don't call clk_hw_create_clk() here because that would pin the
+--- a/include/linux/clk.h
++++ b/include/linux/clk.h
+@@ -15,6 +15,7 @@
+ 
+ struct device;
+ struct clk;
++struct clk_request;
+ struct device_node;
+ struct of_phandle_args;
+ 
+@@ -743,6 +744,9 @@ int clk_save_context(void);
+  */
+ void clk_restore_context(void);
+ 
++struct clk_request *clk_request_start(struct clk *clk, unsigned long rate);
++void clk_request_done(struct clk_request *req);
++
+ #else /* !CONFIG_HAVE_CLK */
+ 
+ static inline struct clk *clk_get(struct device *dev, const char *id)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0538-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch b/target/linux/bcm27xx/patches-5.10/950-0538-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch
new file mode 100644
index 0000000000..227c27f01d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0538-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch
@@ -0,0 +1,79 @@
+From fe77a92b9018f9a2dbab0e2a600e368d55c667b0 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 13 Apr 2021 11:55:55 +0200
+Subject: [PATCH] drm/vc4: hdmi: Convert to the new clock request API
+
+The new clock request API allows us to increase the rate of the HSM
+clock to match our pixel rate requirements while decreasing it when
+we're done, resulting in a better power-efficiency.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 22 +++++++++++++++-------
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  3 +++
+ 2 files changed, 18 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -545,6 +545,9 @@ static void vc4_hdmi_encoder_post_crtc_p
+ 		   HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
+ 
+ 	clk_disable_unprepare(vc4_hdmi->pixel_bvb_clock);
++	clk_request_done(vc4_hdmi->bvb_req);
++	clk_disable_unprepare(vc4_hdmi->hsm_clock);
++	clk_request_done(vc4_hdmi->hsm_req);
+ 	clk_disable_unprepare(vc4_hdmi->pixel_clock);
+ 
+ 	ret = pm_runtime_put(&vc4_hdmi->pdev->dev);
+@@ -849,9 +852,9 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	 * pixel clock, but HSM ends up being the limiting factor.
+ 	 */
+ 	hsm_rate = max_t(unsigned long, 120000000, (pixel_rate / 100) * 101);
+-	ret = clk_set_min_rate(vc4_hdmi->hsm_clock, hsm_rate);
+-	if (ret) {
+-		DRM_ERROR("Failed to set HSM clock rate: %d\n", ret);
++	vc4_hdmi->hsm_req = clk_request_start(vc4_hdmi->hsm_clock, hsm_rate);
++	if (IS_ERR(vc4_hdmi->hsm_req)) {
++		DRM_ERROR("Failed to set HSM clock rate: %ld\n", PTR_ERR(vc4_hdmi->hsm_req));
+ 		return;
+ 	}
+ 
+@@ -863,10 +866,12 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	 * FIXME: When the pixel freq is 594MHz (4k60), this needs to be setup
+ 	 * at 300MHz.
+ 	 */
+-	ret = clk_set_min_rate(vc4_hdmi->pixel_bvb_clock,
+-			       (hsm_rate > VC4_HSM_MID_CLOCK ? 150000000 : 75000000));
+-	if (ret) {
+-		DRM_ERROR("Failed to set pixel bvb clock rate: %d\n", ret);
++	vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock,
++					      (hsm_rate > VC4_HSM_MID_CLOCK ? 150000000 : 75000000));
++	if (IS_ERR(vc4_hdmi->bvb_req)) {
++		DRM_ERROR("Failed to set pixel bvb clock rate: %ld\n", PTR_ERR(vc4_hdmi->bvb_req));
++		clk_request_done(vc4_hdmi->hsm_req);
++		clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
+ 		return;
+ 	}
+@@ -874,6 +879,9 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	ret = clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
++		clk_request_done(vc4_hdmi->bvb_req);
++		clk_request_done(vc4_hdmi->hsm_req);
++		clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
+ 		return;
+ 	}
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -172,6 +172,9 @@ struct vc4_hdmi {
+ 
+ 	struct reset_control *reset;
+ 
++	struct clk_request *bvb_req;
++	struct clk_request *hsm_req;
++
+ 	/* Common debugfs regset */
+ 	struct debugfs_regset32 hdmi_regset;
+ 	struct debugfs_regset32 hd_regset;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0539-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch b/target/linux/bcm27xx/patches-5.10/950-0539-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch
new file mode 100644
index 0000000000..174f6fb3a1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0539-drm-vc4-hdmi-Convert-to-the-new-clock-request-API.patch
@@ -0,0 +1,42 @@
+From ccc2fa16de3fef192885831595a168a36bfdd842 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 13 Apr 2021 14:10:03 +0100
+Subject: [PATCH] drm/vc4: hdmi: Convert to the new clock request API
+
+The new clock request API allows us to increase the rate of the
+core clock as required during mode set while decreasing it when
+we're done, resulting in a better power-efficiency.
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_kms.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -313,6 +313,7 @@ vc4_atomic_complete_commit(struct drm_at
+ 	struct vc4_hvs *hvs = vc4->hvs;
+ 	struct drm_crtc_state *new_crtc_state;
+ 	struct drm_crtc *crtc;
++	struct clk_request *core_req;
+ 	int i;
+ 
+ 	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+@@ -326,7 +327,7 @@ vc4_atomic_complete_commit(struct drm_at
+ 	}
+ 
+ 	if (vc4->hvs && vc4->hvs->hvs5)
+-		clk_set_min_rate(hvs->core_clk, 500000000);
++		core_req = clk_request_start(hvs->core_clk, 500000000);
+ 
+ 	drm_atomic_helper_wait_for_fences(dev, state, false);
+ 
+@@ -358,7 +359,7 @@ vc4_atomic_complete_commit(struct drm_at
+ 	drm_atomic_helper_commit_cleanup_done(state);
+ 
+ 	if (vc4->hvs && vc4->hvs->hvs5)
+-		clk_set_min_rate(hvs->core_clk, 0);
++		clk_request_done(core_req);
+ 
+ 	drm_atomic_state_put(state);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0540-bcm2835-unicam-Switch-to-new-clock-api.patch b/target/linux/bcm27xx/patches-5.10/950-0540-bcm2835-unicam-Switch-to-new-clock-api.patch
new file mode 100644
index 0000000000..1c8eead29b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0540-bcm2835-unicam-Switch-to-new-clock-api.patch
@@ -0,0 +1,53 @@
+From 20d6f2f3e034889bcadb960e6ee4d6822d9dbcd7 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 13 Apr 2021 16:48:35 +0100
+Subject: [PATCH] bcm2835-unicam: Switch to new clock api
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 13 ++++++-------
+ 1 file changed, 6 insertions(+), 7 deletions(-)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -426,6 +426,8 @@ struct unicam_device {
+ 	struct clk *clock;
+ 	/* vpu clock handle */
+ 	struct clk *vpu_clock;
++	/* vpu clock request */
++	struct clk_request *vpu_req;
+ 	/* clock status for error handling */
+ 	bool clocks_enabled;
+ 	/* V4l2 device */
+@@ -1691,8 +1693,8 @@ static int unicam_start_streaming(struct
+ 	unicam_dbg(1, dev, "Running with %u data lanes\n",
+ 		   dev->active_data_lanes);
+ 
+-	ret = clk_set_min_rate(dev->vpu_clock, MIN_VPU_CLOCK_RATE);
+-	if (ret) {
++	dev->vpu_req = clk_request_start(dev->vpu_clock, MIN_VPU_CLOCK_RATE);
++	if (!dev->vpu_req) {
+ 		unicam_err(dev, "failed to set up VPU clock\n");
+ 		goto err_pm_put;
+ 	}
+@@ -1748,8 +1750,7 @@ err_disable_unicam:
+ 	unicam_disable(dev);
+ 	clk_disable_unprepare(dev->clock);
+ err_vpu_clock:
+-	if (clk_set_min_rate(dev->vpu_clock, 0))
+-		unicam_err(dev, "failed to reset the VPU clock\n");
++	clk_request_done(dev->vpu_req);
+ 	clk_disable_unprepare(dev->vpu_clock);
+ err_pm_put:
+ 	unicam_runtime_put(dev);
+@@ -1779,9 +1780,7 @@ static void unicam_stop_streaming(struct
+ 		unicam_disable(dev);
+ 
+ 		if (dev->clocks_enabled) {
+-			if (clk_set_min_rate(dev->vpu_clock, 0))
+-				unicam_err(dev, "failed to reset the min VPU clock\n");
+-
++			clk_request_done(dev->vpu_req);
+ 			clk_disable_unprepare(dev->vpu_clock);
+ 			clk_disable_unprepare(dev->clock);
+ 			dev->clocks_enabled = false;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0541-rpivid-Switch-to-new-clock-api.patch b/target/linux/bcm27xx/patches-5.10/950-0541-rpivid-Switch-to-new-clock-api.patch
new file mode 100644
index 0000000000..f7775015e1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0541-rpivid-Switch-to-new-clock-api.patch
@@ -0,0 +1,54 @@
+From 4ffdf70996826a87fceb78f2399c98e8a4c6aa89 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 19 Apr 2021 19:30:26 +0100
+Subject: [PATCH] rpivid: Switch to new clock api
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/staging/media/rpivid/rpivid.h       |  1 +
+ drivers/staging/media/rpivid/rpivid_video.c | 11 +++--------
+ 2 files changed, 4 insertions(+), 8 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -172,6 +172,7 @@ struct rpivid_dev {
+ 	void __iomem		*base_h265;
+ 
+ 	struct clk		*clock;
++	struct clk_request      *hevc_req;
+ 
+ 	struct rpivid_hw_irq_ctrl ic_active1;
+ 	struct rpivid_hw_irq_ctrl ic_active2;
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -499,8 +499,8 @@ static int rpivid_start_streaming(struct
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->start)
+ 		ret = dev->dec_ops->start(ctx);
+ 
+-	ret = clk_set_rate(dev->clock, max_hevc_clock);
+-	if (ret) {
++	dev->hevc_req = clk_request_start(dev->clock, max_hevc_clock);
++	if (!dev->hevc_req) {
+ 		dev_err(dev->dev, "Failed to set clock rate\n");
+ 		goto out;
+ 	}
+@@ -520,18 +520,13 @@ static void rpivid_stop_streaming(struct
+ {
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+ 	struct rpivid_dev *dev = ctx->dev;
+-	long min_hevc_clock = clk_round_rate(dev->clock, 0);
+-	int ret;
+ 
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->stop)
+ 		dev->dec_ops->stop(ctx);
+ 
+ 	rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
+ 
+-	ret = clk_set_rate(dev->clock, min_hevc_clock);
+-	if (ret)
+-		dev_err(dev->dev, "Failed to set minimum clock rate\n");
+-
++	clk_request_done(dev->hevc_req);
+ 	clk_disable_unprepare(dev->clock);
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0542-net-usb-r8152-Provide-missing-documentation-for-some.patch b/target/linux/bcm27xx/patches-5.10/950-0542-net-usb-r8152-Provide-missing-documentation-for-some.patch
new file mode 100644
index 0000000000..e69144fcd8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0542-net-usb-r8152-Provide-missing-documentation-for-some.patch
@@ -0,0 +1,72 @@
+From 586f04ce6a391419ca3cc9cef6b6f38570cede88 Mon Sep 17 00:00:00 2001
+From: Lee Jones <lee.jones@linaro.org>
+Date: Mon, 2 Nov 2020 11:45:04 +0000
+Subject: [PATCH] net: usb: r8152: Provide missing documentation for
+ some struct members
+
+commit 34e653efb602e0651867fb5ab14369b555a61dcd upstream.
+
+Fixes the following W=1 kernel build warning(s):
+
+ drivers/net/usb/r8152.c:934: warning: Function parameter or member 'blk_hdr' not described in 'fw_mac'
+ drivers/net/usb/r8152.c:934: warning: Function parameter or member 'reserved' not described in 'fw_mac'
+ drivers/net/usb/r8152.c:947: warning: Function parameter or member 'blk_hdr' not described in 'fw_phy_patch_key'
+ drivers/net/usb/r8152.c:947: warning: Function parameter or member 'reserved' not described in 'fw_phy_patch_key'
+ drivers/net/usb/r8152.c:986: warning: Function parameter or member 'blk_hdr' not described in 'fw_phy_nc'
+ drivers/net/usb/r8152.c:986: warning: Function parameter or member 'mode_pre' not described in 'fw_phy_nc'
+ drivers/net/usb/r8152.c:986: warning: Function parameter or member 'mode_post' not described in 'fw_phy_nc'
+ drivers/net/usb/r8152.c:986: warning: Function parameter or member 'reserved' not described in 'fw_phy_nc'
+
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Acked-by: Hayes Wang <hayeswang@realtek.com>
+Link: https://lore.kernel.org/r/20201102114512.1062724-23-lee.jones@linaro.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -898,6 +898,7 @@ struct fw_header {
+  * struct fw_mac - a firmware block used by RTL_FW_PLA and RTL_FW_USB.
+  *	The layout of the firmware block is:
+  *	<struct fw_mac> + <info> + <firmware data>.
++ * @blk_hdr: firmware descriptor (type, length)
+  * @fw_offset: offset of the firmware binary data. The start address of
+  *	the data would be the address of struct fw_mac + @fw_offset.
+  * @fw_reg: the register to load the firmware. Depends on chip.
+@@ -911,6 +912,7 @@ struct fw_header {
+  * @bp_num: the break point number which needs to be set for this firmware.
+  *	Depends on the firmware.
+  * @bp: break points. Depends on firmware.
++ * @reserved: reserved space (unused)
+  * @fw_ver_reg: the register to store the fw version.
+  * @fw_ver_data: the firmware version of the current type.
+  * @info: additional information for debugging, and is followed by the
+@@ -936,8 +938,10 @@ struct fw_mac {
+ /**
+  * struct fw_phy_patch_key - a firmware block used by RTL_FW_PHY_START.
+  *	This is used to set patch key when loading the firmware of PHY.
++ * @blk_hdr: firmware descriptor (type, length)
+  * @key_reg: the register to write the patch key.
+  * @key_data: patch key.
++ * @reserved: reserved space (unused)
+  */
+ struct fw_phy_patch_key {
+ 	struct fw_block blk_hdr;
+@@ -950,6 +954,7 @@ struct fw_phy_patch_key {
+  * struct fw_phy_nc - a firmware block used by RTL_FW_PHY_NC.
+  *	The layout of the firmware block is:
+  *	<struct fw_phy_nc> + <info> + <firmware data>.
++ * @blk_hdr: firmware descriptor (type, length)
+  * @fw_offset: offset of the firmware binary data. The start address of
+  *	the data would be the address of struct fw_phy_nc + @fw_offset.
+  * @fw_reg: the register to load the firmware. Depends on chip.
+@@ -960,6 +965,7 @@ struct fw_phy_patch_key {
+  * @mode_reg: the regitster of switching the mode.
+  * @mod_pre: the mode needing to be set before loading the firmware.
+  * @mod_post: the mode to be set when finishing to load the firmware.
++ * @reserved: reserved space (unused)
+  * @bp_start: the start register of break points. Depends on chip.
+  * @bp_num: the break point number which needs to be set for this firmware.
+  *	Depends on the firmware.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0543-net-usb-r8152-Fix-a-couple-of-spelling-errors-in-fw_.patch b/target/linux/bcm27xx/patches-5.10/950-0543-net-usb-r8152-Fix-a-couple-of-spelling-errors-in-fw_.patch
new file mode 100644
index 0000000000..96a9a3363d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0543-net-usb-r8152-Fix-a-couple-of-spelling-errors-in-fw_.patch
@@ -0,0 +1,34 @@
+From 5fcfa846181de6676509696c4cd7b60a22e74077 Mon Sep 17 00:00:00 2001
+From: Lee Jones <lee.jones@linaro.org>
+Date: Mon, 2 Nov 2020 11:45:09 +0000
+Subject: [PATCH] net: usb: r8152: Fix a couple of spelling errors in
+ fw_phy_nc's docs
+
+commit 9f07814d01ad085b2d9f1d55b4ce532fb2c27110 upstream.
+
+Fixes the following W=1 kernel build warning(s):
+
+ drivers/net/usb/r8152.c:992: warning: Function parameter or member 'mode_pre' not described in 'fw_phy_nc'
+ drivers/net/usb/r8152.c:992: warning: Function parameter or member 'mode_post' not described in 'fw_phy_nc'
+
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Acked-by: Hayes Wang <hayeswang@realtek.com>
+Link: https://lore.kernel.org/r/20201102114512.1062724-28-lee.jones@linaro.org
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -963,8 +963,8 @@ struct fw_phy_patch_key {
+  * @patch_en_addr: the register of enabling patch mode. Depends on chip.
+  * @patch_en_value: patch mode enabled mask. Depends on the firmware.
+  * @mode_reg: the regitster of switching the mode.
+- * @mod_pre: the mode needing to be set before loading the firmware.
+- * @mod_post: the mode to be set when finishing to load the firmware.
++ * @mode_pre: the mode needing to be set before loading the firmware.
++ * @mode_post: the mode to be set when finishing to load the firmware.
+  * @reserved: reserved space (unused)
+  * @bp_start: the start register of break points. Depends on chip.
+  * @bp_num: the break point number which needs to be set for this firmware.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0544-net-usb-r8153_ecm-support-ECM-mode-for-RTL8153.patch b/target/linux/bcm27xx/patches-5.10/950-0544-net-usb-r8153_ecm-support-ECM-mode-for-RTL8153.patch
new file mode 100644
index 0000000000..b3eb58831c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0544-net-usb-r8153_ecm-support-ECM-mode-for-RTL8153.patch
@@ -0,0 +1,320 @@
+From 0ef50460f7f053bd2a911ec53e01bfda646a5574 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Wed, 4 Nov 2020 10:19:22 +0800
+Subject: [PATCH] net/usb/r8153_ecm: support ECM mode for RTL8153
+
+commit c1aedf015ebdd0232757a66e2daccf1246bd609c upstream.
+
+Support ECM mode based on cdc_ether with relative mii functions,
+when CONFIG_USB_RTL8152 is not set, or the device is not supported
+by r8152 driver.
+
+Both r8152 and r8153_ecm would check the return value of
+rtl8152_get_version() in porbe(). If rtl8152_get_version()
+return none zero value, the r8152 is used for the device
+with vendor mode. Otherwise, the r8153_ecm is used for the
+device with ECM mode.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Link: https://lore.kernel.org/r/1394712342-15778-392-Taiwan-albertk@realtek.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/Makefile    |   2 +-
+ drivers/net/usb/r8152.c     |  30 +------
+ drivers/net/usb/r8153_ecm.c | 162 ++++++++++++++++++++++++++++++++++++
+ include/linux/usb/r8152.h   |  37 ++++++++
+ 4 files changed, 204 insertions(+), 27 deletions(-)
+ create mode 100644 drivers/net/usb/r8153_ecm.c
+ create mode 100644 include/linux/usb/r8152.h
+
+--- a/drivers/net/usb/Makefile
++++ b/drivers/net/usb/Makefile
+@@ -13,7 +13,7 @@ obj-$(CONFIG_USB_LAN78XX)	+= lan78xx.o
+ obj-$(CONFIG_USB_NET_AX8817X)	+= asix.o
+ asix-y := asix_devices.o asix_common.o ax88172a.o
+ obj-$(CONFIG_USB_NET_AX88179_178A)      += ax88179_178a.o
+-obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o
++obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o r8153_ecm.o
+ obj-$(CONFIG_USB_NET_CDC_EEM)	+= cdc_eem.o
+ obj-$(CONFIG_USB_NET_DM9601)	+= dm9601.o
+ obj-$(CONFIG_USB_NET_SR9700)	+= sr9700.o
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -26,6 +26,7 @@
+ #include <linux/acpi.h>
+ #include <linux/firmware.h>
+ #include <crypto/hash.h>
++#include <linux/usb/r8152.h>
+ 
+ /* Information for net-next */
+ #define NETNEXT_VERSION		"11"
+@@ -653,18 +654,6 @@ enum rtl_register_content {
+ 
+ #define INTR_LINK		0x0004
+ 
+-#define RTL8152_REQT_READ	0xc0
+-#define RTL8152_REQT_WRITE	0x40
+-#define RTL8152_REQ_GET_REGS	0x05
+-#define RTL8152_REQ_SET_REGS	0x05
+-
+-#define BYTE_EN_DWORD		0xff
+-#define BYTE_EN_WORD		0x33
+-#define BYTE_EN_BYTE		0x11
+-#define BYTE_EN_SIX_BYTES	0x3f
+-#define BYTE_EN_START_MASK	0x0f
+-#define BYTE_EN_END_MASK	0xf0
+-
+ #define RTL8153_MAX_PACKET	9216 /* 9K */
+ #define RTL8153_MAX_MTU		(RTL8153_MAX_PACKET - VLAN_ETH_HLEN - \
+ 				 ETH_FCS_LEN)
+@@ -689,21 +678,9 @@ enum rtl8152_flags {
+ 	LENOVO_MACPASSTHRU,
+ };
+ 
+-/* Define these values to match your device */
+-#define VENDOR_ID_REALTEK		0x0bda
+-#define VENDOR_ID_MICROSOFT		0x045e
+-#define VENDOR_ID_SAMSUNG		0x04e8
+-#define VENDOR_ID_LENOVO		0x17ef
+-#define VENDOR_ID_LINKSYS		0x13b1
+-#define VENDOR_ID_NVIDIA		0x0955
+-#define VENDOR_ID_TPLINK		0x2357
+-
+ #define DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2	0x3082
+ #define DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2		0xa387
+ 
+-#define MCU_TYPE_PLA			0x0100
+-#define MCU_TYPE_USB			0x0000
+-
+ struct tally_counter {
+ 	__le64	tx_packets;
+ 	__le64	rx_packets;
+@@ -6602,7 +6579,7 @@ static int rtl_fw_init(struct r8152 *tp)
+ 	return 0;
+ }
+ 
+-static u8 rtl_get_version(struct usb_interface *intf)
++u8 rtl8152_get_version(struct usb_interface *intf)
+ {
+ 	struct usb_device *udev = interface_to_usbdev(intf);
+ 	u32 ocp_data = 0;
+@@ -6660,12 +6637,13 @@ static u8 rtl_get_version(struct usb_int
+ 
+ 	return version;
+ }
++EXPORT_SYMBOL_GPL(rtl8152_get_version);
+ 
+ static int rtl8152_probe(struct usb_interface *intf,
+ 			 const struct usb_device_id *id)
+ {
+ 	struct usb_device *udev = interface_to_usbdev(intf);
+-	u8 version = rtl_get_version(intf);
++	u8 version = rtl8152_get_version(intf);
+ 	struct r8152 *tp;
+ 	struct net_device *netdev;
+ 	int ret;
+--- /dev/null
++++ b/drivers/net/usb/r8153_ecm.c
+@@ -0,0 +1,162 @@
++// SPDX-License-Identifier: GPL-2.0-or-later
++#include <linux/module.h>
++#include <linux/netdevice.h>
++#include <linux/mii.h>
++#include <linux/usb.h>
++#include <linux/usb/cdc.h>
++#include <linux/usb/usbnet.h>
++#include <linux/usb/r8152.h>
++
++#define OCP_BASE		0xe86c
++
++static int pla_read_word(struct usbnet *dev, u16 index)
++{
++	u16 byen = BYTE_EN_WORD;
++	u8 shift = index & 2;
++	__le32 tmp;
++	int ret;
++
++	if (shift)
++		byen <<= shift;
++
++	index &= ~3;
++
++	ret = usbnet_read_cmd(dev, RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, index,
++			      MCU_TYPE_PLA | byen, &tmp, sizeof(tmp));
++	if (ret < 0)
++		goto out;
++
++	ret = __le32_to_cpu(tmp);
++	ret >>= (shift * 8);
++	ret &= 0xffff;
++
++out:
++	return ret;
++}
++
++static int pla_write_word(struct usbnet *dev, u16 index, u32 data)
++{
++	u32 mask = 0xffff;
++	u16 byen = BYTE_EN_WORD;
++	u8 shift = index & 2;
++	__le32 tmp;
++	int ret;
++
++	data &= mask;
++
++	if (shift) {
++		byen <<= shift;
++		mask <<= (shift * 8);
++		data <<= (shift * 8);
++	}
++
++	index &= ~3;
++
++	ret = usbnet_read_cmd(dev, RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, index,
++			      MCU_TYPE_PLA | byen, &tmp, sizeof(tmp));
++
++	if (ret < 0)
++		goto out;
++
++	data |= __le32_to_cpu(tmp) & ~mask;
++	tmp = __cpu_to_le32(data);
++
++	ret = usbnet_write_cmd(dev, RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE, index,
++			       MCU_TYPE_PLA | byen, &tmp, sizeof(tmp));
++
++out:
++	return ret;
++}
++
++static int r8153_ecm_mdio_read(struct net_device *netdev, int phy_id, int reg)
++{
++	struct usbnet *dev = netdev_priv(netdev);
++	int ret;
++
++	ret = pla_write_word(dev, OCP_BASE, 0xa000);
++	if (ret < 0)
++		goto out;
++
++	ret = pla_read_word(dev, 0xb400 + reg * 2);
++
++out:
++	return ret;
++}
++
++static void r8153_ecm_mdio_write(struct net_device *netdev, int phy_id, int reg, int val)
++{
++	struct usbnet *dev = netdev_priv(netdev);
++	int ret;
++
++	ret = pla_write_word(dev, OCP_BASE, 0xa000);
++	if (ret < 0)
++		return;
++
++	ret = pla_write_word(dev, 0xb400 + reg * 2, val);
++}
++
++static int r8153_bind(struct usbnet *dev, struct usb_interface *intf)
++{
++	int status;
++
++	status = usbnet_cdc_bind(dev, intf);
++	if (status < 0)
++		return status;
++
++	dev->mii.dev = dev->net;
++	dev->mii.mdio_read = r8153_ecm_mdio_read;
++	dev->mii.mdio_write = r8153_ecm_mdio_write;
++	dev->mii.reg_num_mask = 0x1f;
++	dev->mii.supports_gmii = 1;
++
++	return status;
++}
++
++static const struct driver_info r8153_info = {
++	.description =	"RTL8153 ECM Device",
++	.flags =	FLAG_ETHER,
++	.bind =		r8153_bind,
++	.unbind =	usbnet_cdc_unbind,
++	.status =	usbnet_cdc_status,
++	.manage_power =	usbnet_manage_power,
++};
++
++static const struct usb_device_id products[] = {
++{
++	USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID_REALTEK, 0x8153, USB_CLASS_COMM,
++				      USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
++	.driver_info = (unsigned long)&r8153_info,
++},
++
++	{ },		/* END */
++};
++MODULE_DEVICE_TABLE(usb, products);
++
++static int rtl8153_ecm_probe(struct usb_interface *intf,
++			     const struct usb_device_id *id)
++{
++#if IS_REACHABLE(CONFIG_USB_RTL8152)
++	if (rtl8152_get_version(intf))
++		return -ENODEV;
++#endif
++
++	return usbnet_probe(intf, id);
++}
++
++static struct usb_driver r8153_ecm_driver = {
++	.name =		"r8153_ecm",
++	.id_table =	products,
++	.probe =	rtl8153_ecm_probe,
++	.disconnect =	usbnet_disconnect,
++	.suspend =	usbnet_suspend,
++	.resume =	usbnet_resume,
++	.reset_resume =	usbnet_resume,
++	.supports_autosuspend = 1,
++	.disable_hub_initiated_lpm = 1,
++};
++
++module_usb_driver(r8153_ecm_driver);
++
++MODULE_AUTHOR("Hayes Wang");
++MODULE_DESCRIPTION("Realtek USB ECM device");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/include/linux/usb/r8152.h
+@@ -0,0 +1,37 @@
++/* SPDX-License-Identifier: GPL-2.0-only */
++/*
++ *  Copyright (c) 2020 Realtek Semiconductor Corp. All rights reserved.
++ */
++
++#ifndef	__LINUX_R8152_H
++#define __LINUX_R8152_H
++
++#define RTL8152_REQT_READ		0xc0
++#define RTL8152_REQT_WRITE		0x40
++#define RTL8152_REQ_GET_REGS		0x05
++#define RTL8152_REQ_SET_REGS		0x05
++
++#define BYTE_EN_DWORD			0xff
++#define BYTE_EN_WORD			0x33
++#define BYTE_EN_BYTE			0x11
++#define BYTE_EN_SIX_BYTES		0x3f
++#define BYTE_EN_START_MASK		0x0f
++#define BYTE_EN_END_MASK		0xf0
++
++#define MCU_TYPE_PLA			0x0100
++#define MCU_TYPE_USB			0x0000
++
++/* Define these values to match your device */
++#define VENDOR_ID_REALTEK		0x0bda
++#define VENDOR_ID_MICROSOFT		0x045e
++#define VENDOR_ID_SAMSUNG		0x04e8
++#define VENDOR_ID_LENOVO		0x17ef
++#define VENDOR_ID_LINKSYS		0x13b1
++#define VENDOR_ID_NVIDIA		0x0955
++#define VENDOR_ID_TPLINK		0x2357
++
++#if IS_REACHABLE(CONFIG_USB_RTL8152)
++extern u8 rtl8152_get_version(struct usb_interface *intf);
++#endif
++
++#endif /* __LINUX_R8152_H */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0545-net-usb-r8152-use-new-tasklet-API.patch b/target/linux/bcm27xx/patches-5.10/950-0545-net-usb-r8152-use-new-tasklet-API.patch
new file mode 100644
index 0000000000..eeb85d7951
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0545-net-usb-r8152-use-new-tasklet-API.patch
@@ -0,0 +1,41 @@
+From 90f1afc7f96c8f7cf19c82e5f4b39e61a63b053d Mon Sep 17 00:00:00 2001
+From: Emil Renner Berthing <kernel@esmil.dk>
+Date: Sun, 31 Jan 2021 00:47:29 +0100
+Subject: [PATCH] net: usb: r8152: use new tasklet API
+
+commit f3163f1cb87141c7a41a15a5d4c98b353f807b04 upstream.
+
+This converts the driver to use the new tasklet API introduced in
+commit 12cc923f1ccc ("tasklet: Introduce new initialization API")
+
+Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 8 +++-----
+ 1 file changed, 3 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -2393,11 +2393,9 @@ static void tx_bottom(struct r8152 *tp)
+ 	} while (res == 0);
+ }
+ 
+-static void bottom_half(unsigned long data)
++static void bottom_half(struct tasklet_struct *t)
+ {
+-	struct r8152 *tp;
+-
+-	tp = (struct r8152 *)data;
++	struct r8152 *tp = from_tasklet(tp, t, tx_tl);
+ 
+ 	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ 		return;
+@@ -6695,7 +6693,7 @@ static int rtl8152_probe(struct usb_inte
+ 	mutex_init(&tp->control);
+ 	INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
+ 	INIT_DELAYED_WORK(&tp->hw_phy_work, rtl_hw_phy_work_func_t);
+-	tasklet_init(&tp->tx_tl, bottom_half, (unsigned long)tp);
++	tasklet_setup(&tp->tx_tl, bottom_half);
+ 	tasklet_disable(&tp->tx_tl);
+ 
+ 	netdev->netdev_ops = &rtl8152_netdev_ops;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0546-r8152-replace-several-functions-about-phy-patch-requ.patch b/target/linux/bcm27xx/patches-5.10/950-0546-r8152-replace-several-functions-about-phy-patch-requ.patch
new file mode 100644
index 0000000000..faaa8275c5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0546-r8152-replace-several-functions-about-phy-patch-requ.patch
@@ -0,0 +1,198 @@
+From 86b98abf4f8c691c260c5113d6a2d32f5377caca Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Wed, 3 Feb 2021 17:14:28 +0800
+Subject: [PATCH] r8152: replace several functions about phy patch
+ request
+
+commit a08c0d309d8c078d22717d815cf9853f6f2c07bd upstream.
+
+Replace r8153_patch_request() with rtl_phy_patch_request().
+Replace r8153_pre_ram_code() with rtl_pre_ram_code().
+Replace r8153_post_ram_code() with rtl_post_ram_code().
+Add rtl_patch_key_set().
+
+The new functions have an additional parameter. It is used to wait
+the patch request command finished. When the PHY is resumed from
+the state of power cut, the PHY is at a safe mode and the
+OCP_PHY_PATCH_STAT wouldn't be updated. For this situation, it is
+safe to set patch request command without waiting OCP_PHY_PATCH_STAT.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 84 ++++++++++++++++++++++++-----------------
+ 1 file changed, 50 insertions(+), 34 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -3443,59 +3443,76 @@ static void rtl_clear_bp(struct r8152 *t
+ 	ocp_write_word(tp, type, PLA_BP_BA, 0);
+ }
+ 
+-static int r8153_patch_request(struct r8152 *tp, bool request)
++static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait)
+ {
+-	u16 data;
++	u16 data, check;
+ 	int i;
+ 
+ 	data = ocp_reg_read(tp, OCP_PHY_PATCH_CMD);
+-	if (request)
++	if (request) {
+ 		data |= PATCH_REQUEST;
+-	else
++		check = 0;
++	} else {
+ 		data &= ~PATCH_REQUEST;
++		check = PATCH_READY;
++	}
+ 	ocp_reg_write(tp, OCP_PHY_PATCH_CMD, data);
+ 
+-	for (i = 0; request && i < 5000; i++) {
++	for (i = 0; wait && i < 5000; i++) {
++		u32 ocp_data;
++
+ 		usleep_range(1000, 2000);
+-		if (ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)
++		ocp_data = ocp_reg_read(tp, OCP_PHY_PATCH_STAT);
++		if ((ocp_data & PATCH_READY) ^ check)
+ 			break;
+ 	}
+ 
+-	if (request && !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) {
+-		netif_err(tp, drv, tp->netdev, "patch request fail\n");
+-		r8153_patch_request(tp, false);
++	if (request && wait &&
++	    !(ocp_reg_read(tp, OCP_PHY_PATCH_STAT) & PATCH_READY)) {
++		dev_err(&tp->intf->dev, "PHY patch request fail\n");
++		rtl_phy_patch_request(tp, false, false);
+ 		return -ETIME;
+ 	} else {
+ 		return 0;
+ 	}
+ }
+ 
+-static int r8153_pre_ram_code(struct r8152 *tp, u16 key_addr, u16 patch_key)
++static void rtl_patch_key_set(struct r8152 *tp, u16 key_addr, u16 patch_key)
+ {
+-	if (r8153_patch_request(tp, true)) {
+-		dev_err(&tp->intf->dev, "patch request fail\n");
+-		return -ETIME;
+-	}
++	if (patch_key && key_addr) {
++		sram_write(tp, key_addr, patch_key);
++		sram_write(tp, SRAM_PHY_LOCK, PHY_PATCH_LOCK);
++	} else if (key_addr) {
++		u16 data;
+ 
+-	sram_write(tp, key_addr, patch_key);
+-	sram_write(tp, SRAM_PHY_LOCK, PHY_PATCH_LOCK);
++		sram_write(tp, 0x0000, 0x0000);
+ 
+-	return 0;
++		data = ocp_reg_read(tp, OCP_PHY_LOCK);
++		data &= ~PATCH_LOCK;
++		ocp_reg_write(tp, OCP_PHY_LOCK, data);
++
++		sram_write(tp, key_addr, 0x0000);
++	} else {
++		WARN_ON_ONCE(1);
++	}
+ }
+ 
+-static int r8153_post_ram_code(struct r8152 *tp, u16 key_addr)
++static int
++rtl_pre_ram_code(struct r8152 *tp, u16 key_addr, u16 patch_key, bool wait)
+ {
+-	u16 data;
++	if (rtl_phy_patch_request(tp, true, wait))
++		return -ETIME;
+ 
+-	sram_write(tp, 0x0000, 0x0000);
++	rtl_patch_key_set(tp, key_addr, patch_key);
+ 
+-	data = ocp_reg_read(tp, OCP_PHY_LOCK);
+-	data &= ~PATCH_LOCK;
+-	ocp_reg_write(tp, OCP_PHY_LOCK, data);
++	return 0;
++}
+ 
+-	sram_write(tp, key_addr, 0x0000);
++static int rtl_post_ram_code(struct r8152 *tp, u16 key_addr, bool wait)
++{
++	rtl_patch_key_set(tp, key_addr, 0);
+ 
+-	r8153_patch_request(tp, false);
++	rtl_phy_patch_request(tp, false, wait);
+ 
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base);
+ 
+@@ -3980,7 +3997,7 @@ static void rtl8152_fw_mac_apply(struct
+ 	dev_dbg(&tp->intf->dev, "successfully applied %s\n", mac->info);
+ }
+ 
+-static void rtl8152_apply_firmware(struct r8152 *tp)
++static void rtl8152_apply_firmware(struct r8152 *tp, bool power_cut)
+ {
+ 	struct rtl_fw *rtl_fw = &tp->rtl_fw;
+ 	const struct firmware *fw;
+@@ -4011,12 +4028,11 @@ static void rtl8152_apply_firmware(struc
+ 		case RTL_FW_PHY_START:
+ 			key = (struct fw_phy_patch_key *)block;
+ 			key_addr = __le16_to_cpu(key->key_reg);
+-			r8153_pre_ram_code(tp, key_addr,
+-					   __le16_to_cpu(key->key_data));
++			rtl_pre_ram_code(tp, key_addr, __le16_to_cpu(key->key_data), !power_cut);
+ 			break;
+ 		case RTL_FW_PHY_STOP:
+ 			WARN_ON(!key_addr);
+-			r8153_post_ram_code(tp, key_addr);
++			rtl_post_ram_code(tp, key_addr, !power_cut);
+ 			break;
+ 		case RTL_FW_PHY_NC:
+ 			rtl8152_fw_phy_nc_apply(tp, (struct fw_phy_nc *)block);
+@@ -4221,7 +4237,7 @@ static void rtl8152_disable(struct r8152
+ 
+ static void r8152b_hw_phy_cfg(struct r8152 *tp)
+ {
+-	rtl8152_apply_firmware(tp);
++	rtl8152_apply_firmware(tp, false);
+ 	rtl_eee_enable(tp, tp->eee_en);
+ 	r8152_aldps_en(tp, true);
+ 	r8152b_enable_fc(tp);
+@@ -4503,7 +4519,7 @@ static void r8153_hw_phy_cfg(struct r815
+ 	/* disable EEE before updating the PHY parameters */
+ 	rtl_eee_enable(tp, false);
+ 
+-	rtl8152_apply_firmware(tp);
++	rtl8152_apply_firmware(tp, false);
+ 
+ 	if (tp->version == RTL_VER_03) {
+ 		data = ocp_reg_read(tp, OCP_EEE_CFG);
+@@ -4577,7 +4593,7 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	/* disable EEE before updating the PHY parameters */
+ 	rtl_eee_enable(tp, false);
+ 
+-	rtl8152_apply_firmware(tp);
++	rtl8152_apply_firmware(tp, false);
+ 
+ 	r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
+ 
+@@ -4618,7 +4634,7 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
+ 
+ 	/* Advnace EEE */
+-	if (!r8153_patch_request(tp, true)) {
++	if (!rtl_phy_patch_request(tp, true, true)) {
+ 		data = ocp_reg_read(tp, OCP_POWER_CFG);
+ 		data |= EEE_CLKDIV_EN;
+ 		ocp_reg_write(tp, OCP_POWER_CFG, data);
+@@ -4635,7 +4651,7 @@ static void r8153b_hw_phy_cfg(struct r81
+ 		ocp_reg_write(tp, OCP_SYSCLK_CFG, clk_div_expo(5));
+ 		tp->ups_info._250m_ckdiv = true;
+ 
+-		r8153_patch_request(tp, false);
++		rtl_phy_patch_request(tp, false, true);
+ 	}
+ 
+ 	if (tp->eee_en)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch b/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch
new file mode 100644
index 0000000000..9d12cb9761
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch
@@ -0,0 +1,134 @@
+From 29a61d8564ad3439d03c7ec135016a4e70072af1 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Wed, 3 Feb 2021 17:14:29 +0800
+Subject: [PATCH] r8152: adjust the flow of power cut for RTL8153B
+
+commit 80fd850b31f09263ad175b2f640d5c5c6f76ed41 upstream.
+
+For runtime resuming, the RTL8153B may be resumed from the state
+of power cut, when enabling the feature of UPS. Then, the PHY
+would be reset, so it is necessary to be initailized again.
+
+Besides, the USB_U1U2_TIMER also has to be set again, so I move
+it from r8153b_init() to r8153b_hw_phy_cfg().
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 68 ++++++++++++++++++++++++-----------------
+ 1 file changed, 40 insertions(+), 28 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -1371,6 +1371,10 @@ void write_mii_word(struct net_device *n
+ static int
+ r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
+ 
++static int
++rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u32 speed, u8 duplex,
++		  u32 advertising);
++
+ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
+ {
+ 	struct r8152 *tp = netdev_priv(netdev);
+@@ -3182,8 +3186,6 @@ static void r8153b_ups_en(struct r8152 *
+ 		ocp_data |= BIT(0);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
+ 	} else {
+-		u16 data;
+-
+ 		ocp_data &= ~(UPS_EN | USP_PREWAKE);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
+ 
+@@ -3191,31 +3193,20 @@ static void r8153b_ups_en(struct r8152 *
+ 		ocp_data &= ~BIT(0);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
+ 
+-		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
+-		ocp_data &= ~PCUT_STATUS;
+-		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++		if (ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0) & PCUT_STATUS) {
++			int i;
+ 
+-		data = r8153_phy_status(tp, 0);
++			for (i = 0; i < 500; i++) {
++				if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++				    AUTOLOAD_DONE)
++					break;
++				msleep(20);
++			}
+ 
+-		switch (data) {
+-		case PHY_STAT_PWRDN:
+-		case PHY_STAT_EXT_INIT:
+-			r8153b_green_en(tp,
+-					test_bit(GREEN_ETHERNET, &tp->flags));
+-
+-			data = r8152_mdio_read(tp, MII_BMCR);
+-			data &= ~BMCR_PDOWN;
+-			data |= BMCR_RESET;
+-			r8152_mdio_write(tp, MII_BMCR, data);
++			tp->rtl_ops.hw_phy_cfg(tp);
+ 
+-			data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
+-			fallthrough;
+-
+-		default:
+-			if (data != PHY_STAT_LAN_ON)
+-				netif_warn(tp, link, tp->netdev,
+-					   "PHY not ready");
+-			break;
++			rtl8152_set_speed(tp, tp->autoneg, tp->speed,
++					  tp->duplex, tp->advertising);
+ 		}
+ 	}
+ }
+@@ -4587,13 +4578,37 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	u32 ocp_data;
+ 	u16 data;
+ 
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
++	if (ocp_data & PCUT_STATUS) {
++		ocp_data &= ~PCUT_STATUS;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++	}
++
+ 	/* disable ALDPS before updating the PHY parameters */
+ 	r8153_aldps_en(tp, false);
+ 
+ 	/* disable EEE before updating the PHY parameters */
+ 	rtl_eee_enable(tp, false);
+ 
+-	rtl8152_apply_firmware(tp, false);
++	/* U1/U2/L1 idle timer. 500 us */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
++
++	data = r8153_phy_status(tp, 0);
++
++	switch (data) {
++	case PHY_STAT_PWRDN:
++	case PHY_STAT_EXT_INIT:
++		rtl8152_apply_firmware(tp, true);
++
++		data = r8152_mdio_read(tp, MII_BMCR);
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++		break;
++	case PHY_STAT_LAN_ON:
++	default:
++		rtl8152_apply_firmware(tp, false);
++		break;
++	}
+ 
+ 	r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
+ 
+@@ -5522,9 +5537,6 @@ static void r8153b_init(struct r8152 *tp
+ 	/* MSC timer = 0xfff * 8ms = 32760 ms */
+ 	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
+ 
+-	/* U1/U2/L1 idle timer. 500 us */
+-	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
+-
+ 	r8153b_power_cut_en(tp, false);
+ 	r8153b_ups_en(tp, false);
+ 	r8153_queue_wake(tp, false);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0548-r8152-enable-U1-U2-for-USB_SPEED_SUPER.patch b/target/linux/bcm27xx/patches-5.10/950-0548-r8152-enable-U1-U2-for-USB_SPEED_SUPER.patch
new file mode 100644
index 0000000000..f97deaa7d2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0548-r8152-enable-U1-U2-for-USB_SPEED_SUPER.patch
@@ -0,0 +1,47 @@
+From 69b4339c0b9f3edc6a8f681f05efaaf4add1bb0e Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 19 Feb 2021 17:04:40 +0800
+Subject: [PATCH] r8152: enable U1/U2 for USB_SPEED_SUPER
+
+commit 7a0ae61acde2cebd69665837170405eced86a6c7 upstream.
+
+U1/U2 shoued be enabled for USB 3.0 or later. The USB 2.0 doesn't
+support it.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -3335,7 +3335,7 @@ static void rtl8153b_runtime_enable(stru
+ 		r8153b_ups_en(tp, false);
+ 		r8153_queue_wake(tp, false);
+ 		rtl_runtime_suspend_enable(tp, false);
+-		if (tp->udev->speed != USB_SPEED_HIGH)
++		if (tp->udev->speed >= USB_SPEED_SUPER)
+ 			r8153b_u1u2en(tp, true);
+ 	}
+ }
+@@ -5028,7 +5028,7 @@ static void rtl8153b_up(struct r8152 *tp
+ 
+ 	r8153_aldps_en(tp, true);
+ 
+-	if (tp->udev->speed != USB_SPEED_HIGH)
++	if (tp->udev->speed >= USB_SPEED_SUPER)
+ 		r8153b_u1u2en(tp, true);
+ }
+ 
+@@ -5550,8 +5550,9 @@ static void r8153b_init(struct r8152 *tp
+ 	ocp_data |= POLL_LINK_CHG;
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
+ 
+-	if (tp->udev->speed != USB_SPEED_HIGH)
++	if (tp->udev->speed >= USB_SPEED_SUPER)
+ 		r8153b_u1u2en(tp, true);
++
+ 	usb_enable_lpm(tp->udev);
+ 
+ 	/* MAC clock speed down */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0549-r8152-check-if-the-pointer-of-the-function-exists.patch b/target/linux/bcm27xx/patches-5.10/950-0549-r8152-check-if-the-pointer-of-the-function-exists.patch
new file mode 100644
index 0000000000..4f754bc69e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0549-r8152-check-if-the-pointer-of-the-function-exists.patch
@@ -0,0 +1,51 @@
+From e78b75f5be204a0a235da995d01c778dc282bb42 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 19 Feb 2021 17:04:41 +0800
+Subject: [PATCH] r8152: check if the pointer of the function exists
+
+commit c79515e47935c747282c6ed2ee5b2ef039756eeb upstream.
+
+Return error code if autosuspend_en, eee_get, or eee_set don't exist.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -5735,6 +5735,9 @@ static int rtl8152_runtime_suspend(struc
+ 	struct net_device *netdev = tp->netdev;
+ 	int ret = 0;
+ 
++	if (!tp->rtl_ops.autosuspend_en)
++		return -EBUSY;
++
+ 	set_bit(SELECTIVE_SUSPEND, &tp->flags);
+ 	smp_mb__after_atomic();
+ 
+@@ -6134,6 +6137,11 @@ rtl_ethtool_get_eee(struct net_device *n
+ 	struct r8152 *tp = netdev_priv(net);
+ 	int ret;
+ 
++	if (!tp->rtl_ops.eee_get) {
++		ret = -EOPNOTSUPP;
++		goto out;
++	}
++
+ 	ret = usb_autopm_get_interface(tp->intf);
+ 	if (ret < 0)
+ 		goto out;
+@@ -6156,6 +6164,11 @@ rtl_ethtool_set_eee(struct net_device *n
+ 	struct r8152 *tp = netdev_priv(net);
+ 	int ret;
+ 
++	if (!tp->rtl_ops.eee_set) {
++		ret = -EOPNOTSUPP;
++		goto out;
++	}
++
+ 	ret = usb_autopm_get_interface(tp->intf);
+ 	if (ret < 0)
+ 		goto out;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0550-r8152-replace-netif_err-with-dev_err.patch b/target/linux/bcm27xx/patches-5.10/950-0550-r8152-replace-netif_err-with-dev_err.patch
new file mode 100644
index 0000000000..9136611e0f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0550-r8152-replace-netif_err-with-dev_err.patch
@@ -0,0 +1,36 @@
+From 38e44c7926512cff0b2809dc329de2a8e769e523 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 19 Feb 2021 17:04:42 +0800
+Subject: [PATCH] r8152: replace netif_err with dev_err
+
+commit 156c3207611262266f0eea589ac3f00c5657320e upstream.
+
+Some messages are before calling register_netdev(), so replace
+netif_err() with dev_err().
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -6571,7 +6571,7 @@ static int rtl_ops_init(struct r8152 *tp
+ 
+ 	default:
+ 		ret = -ENODEV;
+-		netif_err(tp, probe, tp->netdev, "Unknown Device\n");
++		dev_err(&tp->intf->dev, "Unknown Device\n");
+ 		break;
+ 	}
+ 
+@@ -6828,7 +6828,7 @@ static int rtl8152_probe(struct usb_inte
+ 
+ 	ret = register_netdev(netdev);
+ 	if (ret != 0) {
+-		netif_err(tp, probe, netdev, "couldn't register the device\n");
++		dev_err(&intf->dev, "couldn't register the device\n");
+ 		goto out1;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0551-r8152-spilt-rtl_set_eee_plus-and-r8153b_green_en.patch b/target/linux/bcm27xx/patches-5.10/950-0551-r8152-spilt-rtl_set_eee_plus-and-r8153b_green_en.patch
new file mode 100644
index 0000000000..0467e06a3c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0551-r8152-spilt-rtl_set_eee_plus-and-r8153b_green_en.patch
@@ -0,0 +1,89 @@
+From 260814de2d6cb958767785ffcb2e76915d1be32b Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 19 Feb 2021 17:04:43 +0800
+Subject: [PATCH] r8152: spilt rtl_set_eee_plus and r8153b_green_en
+
+commit 40fa7568ac230446d888b7ad402cff9e20fe3ad5 upstream.
+
+Add rtl_eee_plus_en() and rtl_green_en().
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 43 ++++++++++++++++++++++++++---------------
+ 1 file changed, 27 insertions(+), 16 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -2632,21 +2632,24 @@ static inline u8 rtl8152_get_speed(struc
+ 	return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
+ }
+ 
+-static void rtl_set_eee_plus(struct r8152 *tp)
++static void rtl_eee_plus_en(struct r8152 *tp, bool enable)
+ {
+ 	u32 ocp_data;
+-	u8 speed;
+ 
+-	speed = rtl8152_get_speed(tp);
+-	if (speed & _10bps) {
+-		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
++	if (enable)
+ 		ocp_data |= EEEP_CR_EEEP_TX;
+-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+-	} else {
+-		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
++	else
+ 		ocp_data &= ~EEEP_CR_EEEP_TX;
+-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
+-	}
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
++}
++
++static void rtl_set_eee_plus(struct r8152 *tp)
++{
++	if (rtl8152_get_speed(tp) & _10bps)
++		rtl_eee_plus_en(tp, true);
++	else
++		rtl_eee_plus_en(tp, false);
+ }
+ 
+ static void rxdy_gated_en(struct r8152 *tp, bool enable)
+@@ -3127,10 +3130,22 @@ static void r8153b_ups_flags(struct r815
+ 	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS, ups_flags);
+ }
+ 
+-static void r8153b_green_en(struct r8152 *tp, bool enable)
++static void rtl_green_en(struct r8152 *tp, bool enable)
+ {
+ 	u16 data;
+ 
++	data = sram_read(tp, SRAM_GREEN_CFG);
++	if (enable)
++		data |= GREEN_ETH_EN;
++	else
++		data &= ~GREEN_ETH_EN;
++	sram_write(tp, SRAM_GREEN_CFG, data);
++
++	tp->ups_info.green = enable;
++}
++
++static void r8153b_green_en(struct r8152 *tp, bool enable)
++{
+ 	if (enable) {
+ 		sram_write(tp, 0x8045, 0);	/* 10M abiq&ldvbias */
+ 		sram_write(tp, 0x804d, 0x1222);	/* 100M short abiq&ldvbias */
+@@ -3141,11 +3156,7 @@ static void r8153b_green_en(struct r8152
+ 		sram_write(tp, 0x805d, 0x2444);	/* 1000M short abiq&ldvbias */
+ 	}
+ 
+-	data = sram_read(tp, SRAM_GREEN_CFG);
+-	data |= GREEN_ETH_EN;
+-	sram_write(tp, SRAM_GREEN_CFG, data);
+-
+-	tp->ups_info.green = enable;
++	rtl_green_en(tp, true);
+ }
+ 
+ static u16 r8153_phy_status(struct r8152 *tp, u16 desired)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0552-r8152-set-inter-fram-gap-time-depending-on-speed.patch b/target/linux/bcm27xx/patches-5.10/950-0552-r8152-set-inter-fram-gap-time-depending-on-speed.patch
new file mode 100644
index 0000000000..15ba2bf29c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0552-r8152-set-inter-fram-gap-time-depending-on-speed.patch
@@ -0,0 +1,75 @@
+From f1bbbb260a8016373adf239c716d2da90e6ced0b Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:32 +0800
+Subject: [PATCH] r8152: set inter fram gap time depending on speed
+
+commit 5133bcc7481528e36fff0a3b056601efb704fb32 upstream.
+
+Set the maximum inter frame gap time (144ns) for speed 10M/half and
+100M/half. It improves the performance for those speeds. And, there
+is no effect for the other speeds.
+
+For 10M/half and 100M/half, the fast inter frame gap time let the
+device couldn't use the feature of the aggregation effectively,
+because the transfer would be completed fastly. Therefore, use the
+maximum value to improve the effect of the aggregation. However, you
+may not feel the improvement for fast CPUs, because they compensate
+for the effect of the aggregation.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -249,6 +249,9 @@
+ 
+ /* PLA_TCR1 */
+ #define VERSION_MASK		0x7cf0
++#define IFG_MASK		(BIT(3) | BIT(9) | BIT(8))
++#define IFG_144NS		BIT(9)
++#define IFG_96NS		(BIT(9) | BIT(8))
+ 
+ /* PLA_MTPS */
+ #define MTPS_JUMBO		(12 * 1024 / 64)
+@@ -2747,6 +2750,29 @@ static int rtl_stop_rx(struct r8152 *tp)
+ 	return 0;
+ }
+ 
++static void rtl_set_ifg(struct r8152 *tp, u16 speed)
++{
++	u32 ocp_data;
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
++	ocp_data &= ~IFG_MASK;
++	if ((speed & (_10bps | _100bps)) && !(speed & FULL_DUP)) {
++		ocp_data |= IFG_144NS;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR1, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++		ocp_data &= ~TX10MIDLE_EN;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++	} else {
++		ocp_data |= IFG_96NS;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR1, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++		ocp_data |= TX10MIDLE_EN;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++	}
++}
++
+ static inline void r8153b_rx_agg_chg_indicate(struct r8152 *tp)
+ {
+ 	ocp_write_byte(tp, MCU_TYPE_USB, USB_UPT_RXDMA_OWN,
+@@ -2850,6 +2876,8 @@ static int rtl8153_enable(struct r8152 *
+ 	r8153_set_rx_early_timeout(tp);
+ 	r8153_set_rx_early_size(tp);
+ 
++	rtl_set_ifg(tp, rtl8152_get_speed(tp));
++
+ 	if (tp->version == RTL_VER_09) {
+ 		u32 ocp_data;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0553-r8152-adjust-rtl8152_check_firmware-function.patch b/target/linux/bcm27xx/patches-5.10/950-0553-r8152-adjust-rtl8152_check_firmware-function.patch
new file mode 100644
index 0000000000..f07c160c71
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0553-r8152-adjust-rtl8152_check_firmware-function.patch
@@ -0,0 +1,152 @@
+From f10c9edf47d3fa240d965e151a48c670f5035b73 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:33 +0800
+Subject: [PATCH] r8152: adjust rtl8152_check_firmware function
+
+commit a8a7be178e81a3d4b6972cbeb0ccd091ca2f9f89 upstream.
+
+Use bits operations to record and check the firmware.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 51 +++++++++++++++++++++++------------------
+ 1 file changed, 29 insertions(+), 22 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -874,6 +874,14 @@ struct fw_header {
+ 	struct fw_block blocks[];
+ } __packed;
+ 
++enum rtl8152_fw_flags {
++	FW_FLAGS_USB = 0,
++	FW_FLAGS_PLA,
++	FW_FLAGS_START,
++	FW_FLAGS_STOP,
++	FW_FLAGS_NC,
++};
++
+ /**
+  * struct fw_mac - a firmware block used by RTL_FW_PLA and RTL_FW_USB.
+  *	The layout of the firmware block is:
+@@ -3800,10 +3808,7 @@ static long rtl8152_check_firmware(struc
+ {
+ 	const struct firmware *fw = rtl_fw->fw;
+ 	struct fw_header *fw_hdr = (struct fw_header *)fw->data;
+-	struct fw_mac *pla = NULL, *usb = NULL;
+-	struct fw_phy_patch_key *start = NULL;
+-	struct fw_phy_nc *phy_nc = NULL;
+-	struct fw_block *stop = NULL;
++	unsigned long fw_flags = 0;
+ 	long ret = -EFAULT;
+ 	int i;
+ 
+@@ -3832,50 +3837,52 @@ static long rtl8152_check_firmware(struc
+ 				goto fail;
+ 			goto fw_end;
+ 		case RTL_FW_PLA:
+-			if (pla) {
++			if (test_bit(FW_FLAGS_PLA, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"multiple PLA firmware encountered");
+ 				goto fail;
+ 			}
+ 
+-			pla = (struct fw_mac *)block;
+-			if (!rtl8152_is_fw_mac_ok(tp, pla)) {
++			if (!rtl8152_is_fw_mac_ok(tp, (struct fw_mac *)block)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check PLA firmware failed\n");
+ 				goto fail;
+ 			}
++			__set_bit(FW_FLAGS_PLA, &fw_flags);
+ 			break;
+ 		case RTL_FW_USB:
+-			if (usb) {
++			if (test_bit(FW_FLAGS_USB, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"multiple USB firmware encountered");
+ 				goto fail;
+ 			}
+ 
+-			usb = (struct fw_mac *)block;
+-			if (!rtl8152_is_fw_mac_ok(tp, usb)) {
++			if (!rtl8152_is_fw_mac_ok(tp, (struct fw_mac *)block)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check USB firmware failed\n");
+ 				goto fail;
+ 			}
++			__set_bit(FW_FLAGS_USB, &fw_flags);
+ 			break;
+ 		case RTL_FW_PHY_START:
+-			if (start || phy_nc || stop) {
++			if (test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check PHY_START fail\n");
+ 				goto fail;
+ 			}
+ 
+-			if (__le32_to_cpu(block->length) != sizeof(*start)) {
++			if (__le32_to_cpu(block->length) != sizeof(struct fw_phy_patch_key)) {
+ 				dev_err(&tp->intf->dev,
+ 					"Invalid length for PHY_START\n");
+ 				goto fail;
+ 			}
+-
+-			start = (struct fw_phy_patch_key *)block;
++			__set_bit(FW_FLAGS_START, &fw_flags);
+ 			break;
+ 		case RTL_FW_PHY_STOP:
+-			if (stop || !start) {
++			if (test_bit(FW_FLAGS_STOP, &fw_flags) ||
++			    !test_bit(FW_FLAGS_START, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"Check PHY_STOP fail\n");
+ 				goto fail;
+@@ -3886,28 +3893,28 @@ static long rtl8152_check_firmware(struc
+ 					"Invalid length for PHY_STOP\n");
+ 				goto fail;
+ 			}
+-
+-			stop = block;
++			__set_bit(FW_FLAGS_STOP, &fw_flags);
+ 			break;
+ 		case RTL_FW_PHY_NC:
+-			if (!start || stop) {
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check PHY_NC fail\n");
+ 				goto fail;
+ 			}
+ 
+-			if (phy_nc) {
++			if (test_bit(FW_FLAGS_NC, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"multiple PHY NC encountered\n");
+ 				goto fail;
+ 			}
+ 
+-			phy_nc = (struct fw_phy_nc *)block;
+-			if (!rtl8152_is_fw_phy_nc_ok(tp, phy_nc)) {
++			if (!rtl8152_is_fw_phy_nc_ok(tp, (struct fw_phy_nc *)block)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check PHY NC firmware failed\n");
+ 				goto fail;
+ 			}
++			__set_bit(FW_FLAGS_NC, &fw_flags);
+ 
+ 			break;
+ 		default:
+@@ -3921,7 +3928,7 @@ static long rtl8152_check_firmware(struc
+ 	}
+ 
+ fw_end:
+-	if ((phy_nc || start) && !stop) {
++	if (test_bit(FW_FLAGS_START, &fw_flags) && !test_bit(FW_FLAGS_STOP, &fw_flags)) {
+ 		dev_err(&tp->intf->dev, "without PHY_STOP\n");
+ 		goto fail;
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0554-r8152-add-help-function-to-change-mtu.patch b/target/linux/bcm27xx/patches-5.10/950-0554-r8152-add-help-function-to-change-mtu.patch
new file mode 100644
index 0000000000..63da9adfd3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0554-r8152-add-help-function-to-change-mtu.patch
@@ -0,0 +1,157 @@
+From f010a7d51cbb42bdb956f0a28b8868b15d7a3816 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:34 +0800
+Subject: [PATCH] r8152: add help function to change mtu
+
+commit 67ce1a806f164e59a074fea8809725d3411eaa20 upstream.
+
+The different chips may have different requests when changing mtu.
+Therefore, add a new help function of rtl_ops to change mtu. Besides,
+reset the tx/rx after changing mtu.
+
+Additionally, add mtu_to_size() and size_to_mtu() macros to simplify
+the code.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 53 ++++++++++++++++++++++++-----------------
+ 1 file changed, 31 insertions(+), 22 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -657,15 +657,13 @@ enum rtl_register_content {
+ 
+ #define INTR_LINK		0x0004
+ 
+-#define RTL8153_MAX_PACKET	9216 /* 9K */
+-#define RTL8153_MAX_MTU		(RTL8153_MAX_PACKET - VLAN_ETH_HLEN - \
+-				 ETH_FCS_LEN)
+ #define RTL8152_RMS		(VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
+ #define RTL8153_RMS		RTL8153_MAX_PACKET
+ #define RTL8152_TX_TIMEOUT	(5 * HZ)
+ #define RTL8152_NAPI_WEIGHT	64
+-#define rx_reserved_size(x)	((x) + VLAN_ETH_HLEN + ETH_FCS_LEN + \
+-				 sizeof(struct rx_desc) + RX_ALIGN)
++#define mtu_to_size(m)		((m) + VLAN_ETH_HLEN + ETH_FCS_LEN)
++#define size_to_mtu(s)		((s) - VLAN_ETH_HLEN - ETH_FCS_LEN)
++#define rx_reserved_size(x)	(mtu_to_size(x) + sizeof(struct rx_desc) + RX_ALIGN)
+ 
+ /* rtl8152 flags */
+ enum rtl8152_flags {
+@@ -795,6 +793,7 @@ struct r8152 {
+ 		bool (*in_nway)(struct r8152 *tp);
+ 		void (*hw_phy_cfg)(struct r8152 *tp);
+ 		void (*autosuspend_en)(struct r8152 *tp, bool enable);
++		void (*change_mtu)(struct r8152 *tp);
+ 	} rtl_ops;
+ 
+ 	struct ups_info {
+@@ -1021,8 +1020,7 @@ enum tx_csum_stat {
+ static const int multicast_filter_limit = 32;
+ static unsigned int agg_buf_sz = 16384;
+ 
+-#define RTL_LIMITED_TSO_SIZE	(agg_buf_sz - sizeof(struct tx_desc) - \
+-				 VLAN_ETH_HLEN - ETH_FCS_LEN)
++#define RTL_LIMITED_TSO_SIZE	(size_to_mtu(agg_buf_sz) - sizeof(struct tx_desc))
+ 
+ static
+ int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
+@@ -2632,10 +2630,7 @@ static void rtl8152_nic_reset(struct r81
+ 
+ static void set_tx_qlen(struct r8152 *tp)
+ {
+-	struct net_device *netdev = tp->netdev;
+-
+-	tp->tx_qlen = agg_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN +
+-				    sizeof(struct tx_desc));
++	tp->tx_qlen = agg_buf_sz / (mtu_to_size(tp->netdev->mtu) + sizeof(struct tx_desc));
+ }
+ 
+ static inline u8 rtl8152_get_speed(struct r8152 *tp)
+@@ -4724,6 +4719,12 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	set_bit(PHY_RESET, &tp->flags);
+ }
+ 
++static void rtl8153_change_mtu(struct r8152 *tp)
++{
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, mtu_to_size(tp->netdev->mtu));
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
++}
++
+ static void r8153_first_init(struct r8152 *tp)
+ {
+ 	u32 ocp_data;
+@@ -4756,9 +4757,7 @@ static void r8153_first_init(struct r815
+ 
+ 	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
+ 
+-	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
+-	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
++	rtl8153_change_mtu(tp);
+ 
+ 	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
+ 	ocp_data |= TCR0_AUTO_FIFO;
+@@ -4793,8 +4792,7 @@ static void r8153_enter_oob(struct r8152
+ 
+ 	wait_oob_link_list_ready(tp);
+ 
+-	ocp_data = tp->netdev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, ocp_data);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, mtu_to_size(tp->netdev->mtu));
+ 
+ 	switch (tp->version) {
+ 	case RTL_VER_03:
+@@ -6495,12 +6493,21 @@ static int rtl8152_change_mtu(struct net
+ 	dev->mtu = new_mtu;
+ 
+ 	if (netif_running(dev)) {
+-		u32 rms = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
+-
+-		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, rms);
++		if (tp->rtl_ops.change_mtu)
++			tp->rtl_ops.change_mtu(tp);
+ 
+-		if (netif_carrier_ok(dev))
+-			r8153_set_rx_early_size(tp);
++		if (netif_carrier_ok(dev)) {
++			netif_stop_queue(dev);
++			napi_disable(&tp->napi);
++			tasklet_disable(&tp->tx_tl);
++			tp->rtl_ops.disable(tp);
++			tp->rtl_ops.enable(tp);
++			rtl_start_rx(tp);
++			tasklet_enable(&tp->tx_tl);
++			napi_enable(&tp->napi);
++			rtl8152_set_rx_mode(dev);
++			netif_wake_queue(dev);
++		}
+ 	}
+ 
+ 	mutex_unlock(&tp->control);
+@@ -6589,6 +6596,7 @@ static int rtl_ops_init(struct r8152 *tp
+ 		ops->in_nway		= rtl8153_in_nway;
+ 		ops->hw_phy_cfg		= r8153_hw_phy_cfg;
+ 		ops->autosuspend_en	= rtl8153_runtime_enable;
++		ops->change_mtu		= rtl8153_change_mtu;
+ 		if (tp->udev->speed < USB_SPEED_SUPER)
+ 			tp->rx_buf_sz	= 16 * 1024;
+ 		else
+@@ -6610,6 +6618,7 @@ static int rtl_ops_init(struct r8152 *tp
+ 		ops->in_nway		= rtl8153_in_nway;
+ 		ops->hw_phy_cfg		= r8153b_hw_phy_cfg;
+ 		ops->autosuspend_en	= rtl8153b_runtime_enable;
++		ops->change_mtu		= rtl8153_change_mtu;
+ 		tp->rx_buf_sz		= 32 * 1024;
+ 		tp->eee_en		= true;
+ 		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
+@@ -6830,7 +6839,7 @@ static int rtl8152_probe(struct usb_inte
+ 		netdev->max_mtu = ETH_DATA_LEN;
+ 		break;
+ 	default:
+-		netdev->max_mtu = RTL8153_MAX_MTU;
++		netdev->max_mtu = size_to_mtu(9 * 1024);
+ 		break;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0555-r8152-support-new-chips.patch b/target/linux/bcm27xx/patches-5.10/950-0555-r8152-support-new-chips.patch
new file mode 100644
index 0000000000..d971e1cc92
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0555-r8152-support-new-chips.patch
@@ -0,0 +1,2886 @@
+From e7439e7fd384f55f55837f7e4866e74d8dca3827 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:35 +0800
+Subject: [PATCH] r8152: support new chips
+
+commit 195aae321c829dd1945900d75561e6aa79cce208 upstream.
+
+Support RTL8153C, RTL8153D, RTL8156A, and RTL8156B. The RTL8156A
+and RTL8156B are the 2.5G ethernet.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 2634 +++++++++++++++++++++++++++++++++++----
+ 1 file changed, 2359 insertions(+), 275 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -43,10 +43,14 @@
+ 
+ #define PLA_IDR			0xc000
+ #define PLA_RCR			0xc010
++#define PLA_RCR1		0xc012
+ #define PLA_RMS			0xc016
+ #define PLA_RXFIFO_CTRL0	0xc0a0
++#define PLA_RXFIFO_FULL		0xc0a2
+ #define PLA_RXFIFO_CTRL1	0xc0a4
++#define PLA_RX_FIFO_FULL	0xc0a6
+ #define PLA_RXFIFO_CTRL2	0xc0a8
++#define PLA_RX_FIFO_EMPTY	0xc0aa
+ #define PLA_DMY_REG0		0xc0b0
+ #define PLA_FMC			0xc0b4
+ #define PLA_CFG_WOL		0xc0b6
+@@ -63,6 +67,8 @@
+ #define PLA_MACDBG_PRE		0xd38c	/* RTL_VER_04 only */
+ #define PLA_MACDBG_POST		0xd38e	/* RTL_VER_04 only */
+ #define PLA_EXTRA_STATUS	0xd398
++#define PLA_GPHY_CTRL		0xd3ae
++#define PLA_POL_GPIO_CTRL	0xdc6a
+ #define PLA_EFUSE_DATA		0xdd00
+ #define PLA_EFUSE_CMD		0xdd02
+ #define PLA_LEDSEL		0xdd90
+@@ -72,6 +78,8 @@
+ #define PLA_LWAKE_CTRL_REG	0xe007
+ #define PLA_GPHY_INTR_IMR	0xe022
+ #define PLA_EEE_CR		0xe040
++#define PLA_EEE_TXTWSYS		0xe04c
++#define PLA_EEE_TXTWSYS_2P5G	0xe058
+ #define PLA_EEEP_CR		0xe080
+ #define PLA_MAC_PWR_CTRL	0xe0c0
+ #define PLA_MAC_PWR_CTRL2	0xe0ca
+@@ -82,6 +90,7 @@
+ #define PLA_TCR1		0xe612
+ #define PLA_MTPS		0xe615
+ #define PLA_TXFIFO_CTRL		0xe618
++#define PLA_TXFIFO_FULL		0xe61a
+ #define PLA_RSTTALLY		0xe800
+ #define PLA_CR			0xe813
+ #define PLA_CRWECR		0xe81c
+@@ -98,6 +107,7 @@
+ #define PLA_SFF_STS_7		0xe8de
+ #define PLA_PHYSTATUS		0xe908
+ #define PLA_CONFIG6		0xe90a /* CONFIG6 */
++#define PLA_USB_CFG		0xe952
+ #define PLA_BP_BA		0xfc26
+ #define PLA_BP_0		0xfc28
+ #define PLA_BP_1		0xfc2a
+@@ -112,6 +122,7 @@
+ #define USB_USB2PHY		0xb41e
+ #define USB_SSPHYLINK1		0xb426
+ #define USB_SSPHYLINK2		0xb428
++#define USB_L1_CTRL		0xb45e
+ #define USB_U2P3_CTRL		0xb460
+ #define USB_CSR_DUMMY1		0xb464
+ #define USB_CSR_DUMMY2		0xb466
+@@ -122,7 +133,12 @@
+ #define USB_FW_FIX_EN0		0xcfca
+ #define USB_FW_FIX_EN1		0xcfcc
+ #define USB_LPM_CONFIG		0xcfd8
++#define USB_ECM_OPTION		0xcfee
+ #define USB_CSTMR		0xcfef	/* RTL8153A */
++#define USB_MISC_2		0xcfff
++#define USB_ECM_OP		0xd26b
++#define USB_GPHY_CTRL		0xd284
++#define USB_SPEED_OPTION	0xd32a
+ #define USB_FW_CTRL		0xd334	/* RTL8153B */
+ #define USB_FC_TIMER		0xd340
+ #define USB_USB_CTRL		0xd406
+@@ -136,16 +152,20 @@
+ #define USB_RX_EXTRA_AGGR_TMR	0xd432	/* RTL8153B */
+ #define USB_TX_DMA		0xd434
+ #define USB_UPT_RXDMA_OWN	0xd437
++#define USB_UPHY3_MDCMDIO	0xd480
+ #define USB_TOLERANCE		0xd490
+ #define USB_LPM_CTRL		0xd41a
+ #define USB_BMU_RESET		0xd4b0
++#define USB_BMU_CONFIG		0xd4b4
+ #define USB_U1U2_TIMER		0xd4da
+ #define USB_FW_TASK		0xd4e8	/* RTL8153B */
++#define USB_RX_AGGR_NUM		0xd4ee
+ #define USB_UPS_CTRL		0xd800
+ #define USB_POWER_CUT		0xd80a
+ #define USB_MISC_0		0xd81a
+ #define USB_MISC_1		0xd81f
+ #define USB_AFE_CTRL2		0xd824
++#define USB_UPHY_XTAL		0xd826
+ #define USB_UPS_CFG		0xd842
+ #define USB_UPS_FLAGS		0xd848
+ #define USB_WDT1_CTRL		0xe404
+@@ -188,6 +208,9 @@
+ #define OCP_EEE_ABLE		0xa5c4
+ #define OCP_EEE_ADV		0xa5d0
+ #define OCP_EEE_LPABLE		0xa5d2
++#define OCP_10GBT_CTRL		0xa5d4
++#define OCP_10GBT_STAT		0xa5d6
++#define OCP_EEE_ADV2		0xa6d4
+ #define OCP_PHY_STATE		0xa708		/* nway state for 8153 */
+ #define OCP_PHY_PATCH_STAT	0xb800
+ #define OCP_PHY_PATCH_CMD	0xb820
+@@ -199,6 +222,7 @@
+ /* SRAM Register */
+ #define SRAM_GREEN_CFG		0x8011
+ #define SRAM_LPF_CFG		0x8012
++#define SRAM_GPHY_FW_VER	0x801e
+ #define SRAM_10M_AMP1		0x8080
+ #define SRAM_10M_AMP2		0x8082
+ #define SRAM_IMPEDANCE		0x8084
+@@ -210,11 +234,19 @@
+ #define RCR_AM			0x00000004
+ #define RCR_AB			0x00000008
+ #define RCR_ACPT_ALL		(RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
++#define SLOT_EN			BIT(11)
++
++/* PLA_RCR1 */
++#define OUTER_VLAN		BIT(7)
++#define INNER_VLAN		BIT(6)
+ 
+ /* PLA_RXFIFO_CTRL0 */
+ #define RXFIFO_THR1_NORMAL	0x00080002
+ #define RXFIFO_THR1_OOB		0x01800003
+ 
++/* PLA_RXFIFO_FULL */
++#define RXFIFO_FULL_MASK	0xfff
++
+ /* PLA_RXFIFO_CTRL1 */
+ #define RXFIFO_THR2_FULL	0x00000060
+ #define RXFIFO_THR2_HIGH	0x00000038
+@@ -285,6 +317,7 @@
+ #define MCU_BORW_EN		0x4000
+ 
+ /* PLA_CPCR */
++#define FLOW_CTRL_EN		BIT(0)
+ #define CPCR_RX_VLAN		0x0040
+ 
+ /* PLA_CFG_WOL */
+@@ -310,6 +343,10 @@
+ /* PLA_CONFIG6 */
+ #define LANWAKE_CLR_EN		BIT(0)
+ 
++/* PLA_USB_CFG */
++#define EN_XG_LIP		BIT(1)
++#define EN_G_LIP		BIT(2)
++
+ /* PLA_CONFIG5 */
+ #define BWF_EN			0x0040
+ #define MWF_EN			0x0020
+@@ -333,6 +370,7 @@
+ /* PLA_MAC_PWR_CTRL2 */
+ #define EEE_SPDWN_RATIO		0x8007
+ #define MAC_CLK_SPDWN_EN	BIT(15)
++#define EEE_SPDWN_RATIO_MASK	0xff
+ 
+ /* PLA_MAC_PWR_CTRL3 */
+ #define PLA_MCU_SPDWN_EN	BIT(14)
+@@ -345,6 +383,7 @@
+ #define PWRSAVE_SPDWN_EN	0x1000
+ #define RXDV_SPDWN_EN		0x0800
+ #define TX10MIDLE_EN		0x0100
++#define IDLE_SPDWN_EN		BIT(6)
+ #define TP100_SPDWN_EN		0x0020
+ #define TP500_SPDWN_EN		0x0010
+ #define TP1000_SPDWN_EN		0x0008
+@@ -385,6 +424,13 @@
+ #define LINK_CHANGE_FLAG	BIT(8)
+ #define POLL_LINK_CHG		BIT(0)
+ 
++/* PLA_GPHY_CTRL */
++#define GPHY_FLASH		BIT(1)
++
++/* PLA_POL_GPIO_CTRL */
++#define DACK_DET_EN		BIT(15)
++#define POL_GPHY_PATCH		BIT(4)
++
+ /* USB_USB2PHY */
+ #define USB2PHY_SUSPEND		0x0001
+ #define USB2PHY_L1		0x0002
+@@ -433,6 +479,9 @@
+ #define BMU_RESET_EP_IN		0x01
+ #define BMU_RESET_EP_OUT	0x02
+ 
++/* USB_BMU_CONFIG */
++#define ACT_ODMA		BIT(1)
++
+ /* USB_UPT_RXDMA_OWN */
+ #define OWN_UPDATE		BIT(0)
+ #define OWN_CLEAR		BIT(1)
+@@ -440,27 +489,52 @@
+ /* USB_FW_TASK */
+ #define FC_PATCH_TASK		BIT(1)
+ 
++/* USB_RX_AGGR_NUM */
++#define RX_AGGR_NUM_MASK	0x1ff
++
+ /* USB_UPS_CTRL */
+ #define POWER_CUT		0x0100
+ 
+ /* USB_PM_CTRL_STATUS */
+ #define RESUME_INDICATE		0x0001
+ 
++/* USB_ECM_OPTION */
++#define BYPASS_MAC_RESET	BIT(5)
++
+ /* USB_CSTMR */
+ #define FORCE_SUPER		BIT(0)
+ 
++/* USB_MISC_2 */
++#define UPS_FORCE_PWR_DOWN	BIT(0)
++
++/* USB_ECM_OP */
++#define	EN_ALL_SPEED		BIT(0)
++
++/* USB_GPHY_CTRL */
++#define GPHY_PATCH_DONE		BIT(2)
++#define BYPASS_FLASH		BIT(5)
++#define BACKUP_RESTRORE		BIT(6)
++
++/* USB_SPEED_OPTION */
++#define RG_PWRDN_EN		BIT(8)
++#define ALL_SPEED_OFF		BIT(9)
++
+ /* USB_FW_CTRL */
+ #define FLOW_CTRL_PATCH_OPT	BIT(1)
++#define AUTO_SPEEDUP		BIT(3)
++#define FLOW_CTRL_PATCH_2	BIT(8)
+ 
+ /* USB_FC_TIMER */
+ #define CTRL_TIMER_EN		BIT(15)
+ 
+ /* USB_USB_CTRL */
++#define CDC_ECM_EN		BIT(3)
+ #define RX_AGG_DISABLE		0x0010
+ #define RX_ZERO_EN		0x0080
+ 
+ /* USB_U2P3_CTRL */
+ #define U2P3_ENABLE		0x0001
++#define RX_DETECT8		BIT(3)
+ 
+ /* USB_POWER_CUT */
+ #define PWR_EN			0x0001
+@@ -496,8 +570,12 @@
+ #define SEN_VAL_NORMAL		0xa000
+ #define SEL_RXIDLE		0x0100
+ 
++/* USB_UPHY_XTAL */
++#define OOBS_POLLING		BIT(8)
++
+ /* USB_UPS_CFG */
+ #define SAW_CNT_1MS_MASK	0x0fff
++#define MID_REVERSE		BIT(5)	/* RTL8156A */
+ 
+ /* USB_UPS_FLAGS */
+ #define UPS_FLAGS_R_TUNE		BIT(0)
+@@ -505,6 +583,7 @@
+ #define UPS_FLAGS_250M_CKDIV		BIT(2)
+ #define UPS_FLAGS_EN_ALDPS		BIT(3)
+ #define UPS_FLAGS_CTAP_SHORT_DIS	BIT(4)
++#define UPS_FLAGS_SPEED_MASK		(0xf << 16)
+ #define ups_flags_speed(x)		((x) << 16)
+ #define UPS_FLAGS_EN_EEE		BIT(20)
+ #define UPS_FLAGS_EN_500M_EEE		BIT(21)
+@@ -525,6 +604,8 @@ enum spd_duplex {
+ 	FORCE_10M_FULL,
+ 	FORCE_100M_HALF,
+ 	FORCE_100M_FULL,
++	FORCE_1000M_FULL,
++	NWAY_2500M_FULL,
+ };
+ 
+ /* OCP_ALDPS_CONFIG */
+@@ -589,6 +670,9 @@ enum spd_duplex {
+ #define EN_10M_CLKDIV		BIT(11)
+ #define EN_10M_BGOFF		0x0080
+ 
++/* OCP_10GBT_CTRL */
++#define RTL_ADV2_5G_F_R		BIT(5)	/* Advertise 2.5GBASE-T fast-retrain */
++
+ /* OCP_PHY_STATE */
+ #define TXDIS_STATE		0x01
+ #define ABD_STATE		0x02
+@@ -608,7 +692,8 @@ enum spd_duplex {
+ #define EN_EMI_L		0x0040
+ 
+ /* OCP_SYSCLK_CFG */
+-#define clk_div_expo(x)		(min(x, 5) << 8)
++#define sysclk_div_expo(x)	(min(x, 5) << 8)
++#define clk_div_expo(x)		(min(x, 5) << 4)
+ 
+ /* SRAM_GREEN_CFG */
+ #define GREEN_ETH_EN		BIT(15)
+@@ -639,6 +724,11 @@ enum spd_duplex {
+ #define BP4_SUPER_ONLY		0x1578	/* RTL_VER_04 only */
+ 
+ enum rtl_register_content {
++	_2500bps	= BIT(10),
++	_1250bps	= BIT(9),
++	_500bps		= BIT(8),
++	_tx_flow	= BIT(6),
++	_rx_flow	= BIT(5),
+ 	_1000bps	= 0x10,
+ 	_100bps		= 0x08,
+ 	_10bps		= 0x04,
+@@ -646,6 +736,9 @@ enum rtl_register_content {
+ 	FULL_DUP	= 0x01,
+ };
+ 
++#define is_speed_2500(_speed)	(((_speed) & (_2500bps | LINK_STATUS)) == (_2500bps | LINK_STATUS))
++#define is_flow_control(_speed)	(((_speed) & (_tx_flow | _rx_flow)) == (_tx_flow | _rx_flow))
++
+ #define RTL8152_MAX_TX		4
+ #define RTL8152_MAX_RX		10
+ #define INTBUFSIZE		2
+@@ -660,7 +753,6 @@ enum rtl_register_content {
+ #define RTL8152_RMS		(VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
+ #define RTL8153_RMS		RTL8153_MAX_PACKET
+ #define RTL8152_TX_TIMEOUT	(5 * HZ)
+-#define RTL8152_NAPI_WEIGHT	64
+ #define mtu_to_size(m)		((m) + VLAN_ETH_HLEN + ETH_FCS_LEN)
+ #define size_to_mtu(s)		((s) - VLAN_ETH_HLEN - ETH_FCS_LEN)
+ #define rx_reserved_size(x)	(mtu_to_size(x) + sizeof(struct rx_desc) + RX_ALIGN)
+@@ -797,6 +889,7 @@ struct r8152 {
+ 	} rtl_ops;
+ 
+ 	struct ups_info {
++		u32 r_tune:1;
+ 		u32 _10m_ckdiv:1;
+ 		u32 _250m_ckdiv:1;
+ 		u32 aldps:1;
+@@ -838,7 +931,9 @@ struct r8152 {
+ 	u32 rx_buf_sz;
+ 	u32 rx_copybreak;
+ 	u32 rx_pending;
++	u32 fc_pause_on, fc_pause_off;
+ 
++	u32 support_2500full:1;
+ 	u16 ocp_base;
+ 	u16 speed;
+ 	u16 eee_adv;
+@@ -998,6 +1093,15 @@ enum rtl_version {
+ 	RTL_VER_07,
+ 	RTL_VER_08,
+ 	RTL_VER_09,
++
++	RTL_TEST_01,
++	RTL_VER_10,
++	RTL_VER_11,
++	RTL_VER_12,
++	RTL_VER_13,
++	RTL_VER_14,
++	RTL_VER_15,
++
+ 	RTL_VER_MAX
+ };
+ 
+@@ -1013,6 +1117,7 @@ enum tx_csum_stat {
+ #define RTL_ADVERTISED_100_FULL			BIT(3)
+ #define RTL_ADVERTISED_1000_HALF		BIT(4)
+ #define RTL_ADVERTISED_1000_FULL		BIT(5)
++#define RTL_ADVERTISED_2500_FULL		BIT(6)
+ 
+ /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
+  * The RTL chips use a 64 element hash table based on the Ethernet CRC.
+@@ -2606,7 +2711,7 @@ static netdev_tx_t rtl8152_start_xmit(st
+ 
+ static void r8152b_reset_packet_filter(struct r8152 *tp)
+ {
+-	u32	ocp_data;
++	u32 ocp_data;
+ 
+ 	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
+ 	ocp_data &= ~FMC_FCR_MCU_EN;
+@@ -2617,14 +2722,47 @@ static void r8152b_reset_packet_filter(s
+ 
+ static void rtl8152_nic_reset(struct r8152 *tp)
+ {
+-	int	i;
++	u32 ocp_data;
++	int i;
+ 
+-	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
++	switch (tp->version) {
++	case RTL_TEST_01:
++	case RTL_VER_10:
++	case RTL_VER_11:
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
++		ocp_data &= ~CR_TE;
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_BMU_RESET);
++		ocp_data &= ~BMU_RESET_EP_IN;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
++		ocp_data |= CDC_ECM_EN;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
++		ocp_data &= ~CR_RE;
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_BMU_RESET);
++		ocp_data |= BMU_RESET_EP_IN;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_BMU_RESET, ocp_data);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
++		ocp_data &= ~CDC_ECM_EN;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++		break;
+ 
+-	for (i = 0; i < 1000; i++) {
+-		if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
+-			break;
+-		usleep_range(100, 400);
++	default:
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
++
++		for (i = 0; i < 1000; i++) {
++			if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
++				break;
++			usleep_range(100, 400);
++		}
++		break;
+ 	}
+ }
+ 
+@@ -2633,9 +2771,9 @@ static void set_tx_qlen(struct r8152 *tp
+ 	tp->tx_qlen = agg_buf_sz / (mtu_to_size(tp->netdev->mtu) + sizeof(struct tx_desc));
+ }
+ 
+-static inline u8 rtl8152_get_speed(struct r8152 *tp)
++static inline u16 rtl8152_get_speed(struct r8152 *tp)
+ {
+-	return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
++	return ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
+ }
+ 
+ static void rtl_eee_plus_en(struct r8152 *tp, bool enable)
+@@ -2795,6 +2933,7 @@ static int rtl_enable(struct r8152 *tp)
+ 	switch (tp->version) {
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_14:
+ 		r8153b_rx_agg_chg_indicate(tp);
+ 		break;
+ 	default:
+@@ -2832,6 +2971,7 @@ static void r8153_set_rx_early_timeout(s
+ 
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_14:
+ 		/* The RTL8153B uses USB_RX_EXTRA_AGGR_TMR for rx timeout
+ 		 * primarily. For USB_RX_EARLY_TIMEOUT, we fix it to 128ns.
+ 		 */
+@@ -2841,6 +2981,18 @@ static void r8153_set_rx_early_timeout(s
+ 			       ocp_data);
+ 		break;
+ 
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_TIMEOUT,
++			       640 / 8);
++		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EXTRA_AGGR_TMR,
++			       ocp_data);
++		r8153b_rx_agg_chg_indicate(tp);
++		break;
++
+ 	default:
+ 		break;
+ 	}
+@@ -2860,8 +3012,19 @@ static void r8153_set_rx_early_size(stru
+ 		break;
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_14:
++		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE,
++			       ocp_data / 8);
++		break;
++	case RTL_TEST_01:
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
+ 		ocp_write_word(tp, MCU_TYPE_USB, USB_RX_EARLY_SIZE,
+ 			       ocp_data / 8);
++		r8153b_rx_agg_chg_indicate(tp);
+ 		break;
+ 	default:
+ 		WARN_ON_ONCE(1);
+@@ -2871,6 +3034,8 @@ static void r8153_set_rx_early_size(stru
+ 
+ static int rtl8153_enable(struct r8152 *tp)
+ {
++	u32 ocp_data;
++
+ 	if (test_bit(RTL8152_UNPLUG, &tp->flags))
+ 		return -ENODEV;
+ 
+@@ -2881,15 +3046,18 @@ static int rtl8153_enable(struct r8152 *
+ 
+ 	rtl_set_ifg(tp, rtl8152_get_speed(tp));
+ 
+-	if (tp->version == RTL_VER_09) {
+-		u32 ocp_data;
+-
++	switch (tp->version) {
++	case RTL_VER_09:
++	case RTL_VER_14:
+ 		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK);
+ 		ocp_data &= ~FC_PATCH_TASK;
+ 		ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
+ 		usleep_range(1000, 2000);
+ 		ocp_data |= FC_PATCH_TASK;
+ 		ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
++		break;
++	default:
++		break;
+ 	}
+ 
+ 	return rtl_enable(tp);
+@@ -2954,12 +3122,40 @@ static void rtl_rx_vlan_en(struct r8152
+ {
+ 	u32 ocp_data;
+ 
+-	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
+-	if (enable)
+-		ocp_data |= CPCR_RX_VLAN;
+-	else
+-		ocp_data &= ~CPCR_RX_VLAN;
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
++	switch (tp->version) {
++	case RTL_VER_01:
++	case RTL_VER_02:
++	case RTL_VER_03:
++	case RTL_VER_04:
++	case RTL_VER_05:
++	case RTL_VER_06:
++	case RTL_VER_07:
++	case RTL_VER_08:
++	case RTL_VER_09:
++	case RTL_VER_14:
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
++		if (enable)
++			ocp_data |= CPCR_RX_VLAN;
++		else
++			ocp_data &= ~CPCR_RX_VLAN;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
++		break;
++
++	case RTL_TEST_01:
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++	default:
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RCR1);
++		if (enable)
++			ocp_data |= OUTER_VLAN | INNER_VLAN;
++		else
++			ocp_data &= ~(OUTER_VLAN | INNER_VLAN);
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RCR1, ocp_data);
++		break;
++	}
+ }
+ 
+ static int rtl8152_set_features(struct net_device *dev,
+@@ -3052,6 +3248,40 @@ static void __rtl_set_wol(struct r8152 *
+ 		device_set_wakeup_enable(&tp->udev->dev, false);
+ }
+ 
++static void r8153_mac_clk_speed_down(struct r8152 *tp, bool enable)
++{
++	u32 ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2);
++
++	/* MAC clock speed down */
++	if (enable)
++		ocp_data |= MAC_CLK_SPDWN_EN;
++	else
++		ocp_data &= ~MAC_CLK_SPDWN_EN;
++
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);
++}
++
++static void r8156_mac_clk_spd(struct r8152 *tp, bool enable)
++{
++	u32 ocp_data;
++
++	/* MAC clock speed down */
++	if (enable) {
++		/* aldps_spdwn_ratio, tp10_spdwn_ratio */
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL,
++			       0x0403);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2);
++		ocp_data &= ~EEE_SPDWN_RATIO_MASK;
++		ocp_data |= MAC_CLK_SPDWN_EN | 0x03; /* eee_spdwn_ratio */
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);
++	} else {
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2);
++		ocp_data &= ~MAC_CLK_SPDWN_EN;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);
++	}
++}
++
+ static void r8153_u1u2en(struct r8152 *tp, bool enable)
+ {
+ 	u8 u1u2[8];
+@@ -3111,6 +3341,9 @@ static void r8153b_ups_flags(struct r815
+ 	if (tp->ups_info.eee_cmod_lv)
+ 		ups_flags |= UPS_FLAGS_EEE_CMOD_LV_EN;
+ 
++	if (tp->ups_info.r_tune)
++		ups_flags |= UPS_FLAGS_R_TUNE;
++
+ 	if (tp->ups_info._10m_ckdiv)
+ 		ups_flags |= UPS_FLAGS_EN_10M_CKDIV;
+ 
+@@ -3161,6 +3394,88 @@ static void r8153b_ups_flags(struct r815
+ 	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS, ups_flags);
+ }
+ 
++static void r8156_ups_flags(struct r8152 *tp)
++{
++	u32 ups_flags = 0;
++
++	if (tp->ups_info.green)
++		ups_flags |= UPS_FLAGS_EN_GREEN;
++
++	if (tp->ups_info.aldps)
++		ups_flags |= UPS_FLAGS_EN_ALDPS;
++
++	if (tp->ups_info.eee)
++		ups_flags |= UPS_FLAGS_EN_EEE;
++
++	if (tp->ups_info.flow_control)
++		ups_flags |= UPS_FLAGS_EN_FLOW_CTR;
++
++	if (tp->ups_info.eee_ckdiv)
++		ups_flags |= UPS_FLAGS_EN_EEE_CKDIV;
++
++	if (tp->ups_info._10m_ckdiv)
++		ups_flags |= UPS_FLAGS_EN_10M_CKDIV;
++
++	if (tp->ups_info.eee_plloff_100)
++		ups_flags |= UPS_FLAGS_EEE_PLLOFF_100;
++
++	if (tp->ups_info.eee_plloff_giga)
++		ups_flags |= UPS_FLAGS_EEE_PLLOFF_GIGA;
++
++	if (tp->ups_info._250m_ckdiv)
++		ups_flags |= UPS_FLAGS_250M_CKDIV;
++
++	switch (tp->ups_info.speed_duplex) {
++	case FORCE_10M_HALF:
++		ups_flags |= ups_flags_speed(0);
++		break;
++	case FORCE_10M_FULL:
++		ups_flags |= ups_flags_speed(1);
++		break;
++	case FORCE_100M_HALF:
++		ups_flags |= ups_flags_speed(2);
++		break;
++	case FORCE_100M_FULL:
++		ups_flags |= ups_flags_speed(3);
++		break;
++	case NWAY_10M_HALF:
++		ups_flags |= ups_flags_speed(4);
++		break;
++	case NWAY_10M_FULL:
++		ups_flags |= ups_flags_speed(5);
++		break;
++	case NWAY_100M_HALF:
++		ups_flags |= ups_flags_speed(6);
++		break;
++	case NWAY_100M_FULL:
++		ups_flags |= ups_flags_speed(7);
++		break;
++	case NWAY_1000M_FULL:
++		ups_flags |= ups_flags_speed(8);
++		break;
++	case NWAY_2500M_FULL:
++		ups_flags |= ups_flags_speed(9);
++		break;
++	default:
++		break;
++	}
++
++	switch (tp->ups_info.lite_mode) {
++	case 1:
++		ups_flags |= 0 << 5;
++		break;
++	case 2:
++		ups_flags |= 2 << 5;
++		break;
++	case 0:
++	default:
++		ups_flags |= 1 << 5;
++		break;
++	}
++
++	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPS_FLAGS, ups_flags);
++}
++
+ static void rtl_green_en(struct r8152 *tp, bool enable)
+ {
+ 	u16 data;
+@@ -3224,16 +3539,16 @@ static void r8153b_ups_en(struct r8152 *
+ 		ocp_data |= UPS_EN | USP_PREWAKE | PHASE2_EN;
+ 		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
+ 
+-		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff);
+-		ocp_data |= BIT(0);
+-		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data |= UPS_FORCE_PWR_DOWN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
+ 	} else {
+ 		ocp_data &= ~(UPS_EN | USP_PREWAKE);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
+ 
+-		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, 0xcfff);
+-		ocp_data &= ~BIT(0);
+-		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data &= ~UPS_FORCE_PWR_DOWN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
+ 
+ 		if (ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0) & PCUT_STATUS) {
+ 			int i;
+@@ -3253,6 +3568,95 @@ static void r8153b_ups_en(struct r8152 *
+ 	}
+ }
+ 
++static void r8153c_ups_en(struct r8152 *tp, bool enable)
++{
++	u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_POWER_CUT);
++
++	if (enable) {
++		r8153b_ups_flags(tp);
++
++		ocp_data |= UPS_EN | USP_PREWAKE | PHASE2_EN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data |= UPS_FORCE_PWR_DOWN;
++		ocp_data &= ~BIT(7);
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
++	} else {
++		ocp_data &= ~(UPS_EN | USP_PREWAKE);
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data &= ~UPS_FORCE_PWR_DOWN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
++
++		if (ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0) & PCUT_STATUS) {
++			int i;
++
++			for (i = 0; i < 500; i++) {
++				if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++				    AUTOLOAD_DONE)
++					break;
++				msleep(20);
++			}
++
++			tp->rtl_ops.hw_phy_cfg(tp);
++
++			rtl8152_set_speed(tp, tp->autoneg, tp->speed,
++					  tp->duplex, tp->advertising);
++		}
++
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
++		ocp_data |= BIT(8);
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
++
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
++	}
++}
++
++static void r8156_ups_en(struct r8152 *tp, bool enable)
++{
++	u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_POWER_CUT);
++
++	if (enable) {
++		r8156_ups_flags(tp);
++
++		ocp_data |= UPS_EN | USP_PREWAKE | PHASE2_EN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data |= UPS_FORCE_PWR_DOWN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
++
++		switch (tp->version) {
++		case RTL_VER_13:
++		case RTL_VER_15:
++			ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPHY_XTAL);
++			ocp_data &= ~OOBS_POLLING;
++			ocp_write_byte(tp, MCU_TYPE_USB, USB_UPHY_XTAL, ocp_data);
++			break;
++		default:
++			break;
++		}
++	} else {
++		ocp_data &= ~(UPS_EN | USP_PREWAKE);
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++		ocp_data &= ~UPS_FORCE_PWR_DOWN;
++		ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
++
++		if (ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0) & PCUT_STATUS) {
++			tp->rtl_ops.hw_phy_cfg(tp);
++
++			rtl8152_set_speed(tp, tp->autoneg, tp->speed,
++					  tp->duplex, tp->advertising);
++		}
++	}
++}
++
+ static void r8153_power_cut_en(struct r8152 *tp, bool enable)
+ {
+ 	u32 ocp_data;
+@@ -3382,6 +3786,38 @@ static void rtl8153b_runtime_enable(stru
+ 	}
+ }
+ 
++static void rtl8153c_runtime_enable(struct r8152 *tp, bool enable)
++{
++	if (enable) {
++		r8153_queue_wake(tp, true);
++		r8153b_u1u2en(tp, false);
++		r8153_u2p3en(tp, false);
++		rtl_runtime_suspend_enable(tp, true);
++		r8153c_ups_en(tp, true);
++	} else {
++		r8153c_ups_en(tp, false);
++		r8153_queue_wake(tp, false);
++		rtl_runtime_suspend_enable(tp, false);
++		r8153b_u1u2en(tp, true);
++	}
++}
++
++static void rtl8156_runtime_enable(struct r8152 *tp, bool enable)
++{
++	if (enable) {
++		r8153_queue_wake(tp, true);
++		r8153b_u1u2en(tp, false);
++		r8153_u2p3en(tp, false);
++		rtl_runtime_suspend_enable(tp, true);
++	} else {
++		r8153_queue_wake(tp, false);
++		rtl_runtime_suspend_enable(tp, false);
++		r8153_u2p3en(tp, true);
++		if (tp->udev->speed >= USB_SPEED_SUPER)
++			r8153b_u1u2en(tp, true);
++	}
++}
++
+ static void r8153_teredo_off(struct r8152 *tp)
+ {
+ 	u32 ocp_data;
+@@ -3402,14 +3838,19 @@ static void r8153_teredo_off(struct r815
+ 
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_TEST_01:
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_14:
++	case RTL_VER_15:
++	default:
+ 		/* The bit 0 ~ 7 are relative with teredo settings. They are
+ 		 * W1C (write 1 to clear), so set all 1 to disable it.
+ 		 */
+ 		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG, 0xff);
+ 		break;
+-
+-	default:
+-		break;
+ 	}
+ 
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_WDT6_CTRL, WDT6_SET_MODE);
+@@ -3444,6 +3885,12 @@ static void rtl_clear_bp(struct r8152 *t
+ 		break;
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_14:
++	case RTL_VER_15:
+ 	default:
+ 		if (type == MCU_TYPE_USB) {
+ 			ocp_write_byte(tp, MCU_TYPE_USB, USB_BP2_EN, 0);
+@@ -3653,6 +4100,11 @@ static bool rtl8152_is_fw_mac_ok(struct
+ 		case RTL_VER_06:
+ 		case RTL_VER_08:
+ 		case RTL_VER_09:
++		case RTL_VER_11:
++		case RTL_VER_12:
++		case RTL_VER_13:
++		case RTL_VER_14:
++		case RTL_VER_15:
+ 			fw_reg = 0xf800;
+ 			bp_ba_addr = PLA_BP_BA;
+ 			bp_en_addr = PLA_BP_EN;
+@@ -3676,6 +4128,11 @@ static bool rtl8152_is_fw_mac_ok(struct
+ 			break;
+ 		case RTL_VER_08:
+ 		case RTL_VER_09:
++		case RTL_VER_11:
++		case RTL_VER_12:
++		case RTL_VER_13:
++		case RTL_VER_14:
++		case RTL_VER_15:
+ 			fw_reg = 0xe600;
+ 			bp_ba_addr = USB_BP_BA;
+ 			bp_en_addr = USB_BP2_EN;
+@@ -4215,6 +4672,22 @@ static void r8153_eee_en(struct r8152 *t
+ 	tp->ups_info.eee = enable;
+ }
+ 
++static void r8156_eee_en(struct r8152 *tp, bool enable)
++{
++	u16 config;
++
++	r8153_eee_en(tp, enable);
++
++	config = ocp_reg_read(tp, OCP_EEE_ADV2);
++
++	if (enable)
++		config |= MDIO_EEE_2_5GT;
++	else
++		config &= ~MDIO_EEE_2_5GT;
++
++	ocp_reg_write(tp, OCP_EEE_ADV2, config);
++}
++
+ static void rtl_eee_enable(struct r8152 *tp, bool enable)
+ {
+ 	switch (tp->version) {
+@@ -4236,6 +4709,7 @@ static void rtl_eee_enable(struct r8152
+ 	case RTL_VER_06:
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_14:
+ 		if (enable) {
+ 			r8153_eee_en(tp, true);
+ 			ocp_reg_write(tp, OCP_EEE_ADV, tp->eee_adv);
+@@ -4244,6 +4718,19 @@ static void rtl_eee_enable(struct r8152
+ 			ocp_reg_write(tp, OCP_EEE_ADV, 0);
+ 		}
+ 		break;
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		if (enable) {
++			r8156_eee_en(tp, true);
++			ocp_reg_write(tp, OCP_EEE_ADV, tp->eee_adv);
++		} else {
++			r8156_eee_en(tp, false);
++			ocp_reg_write(tp, OCP_EEE_ADV, 0);
++		}
++		break;
+ 	default:
+ 		break;
+ 	}
+@@ -4290,6 +4777,20 @@ static void wait_oob_link_list_ready(str
+ 	}
+ }
+ 
++static void r8156b_wait_loading_flash(struct r8152 *tp)
++{
++	if ((ocp_read_word(tp, MCU_TYPE_PLA, PLA_GPHY_CTRL) & GPHY_FLASH) &&
++	    !(ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL) & BYPASS_FLASH)) {
++		int i;
++
++		for (i = 0; i < 100; i++) {
++			if (ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL) & GPHY_PATCH_DONE)
++				break;
++			usleep_range(1000, 2000);
++		}
++	}
++}
++
+ static void r8152b_exit_oob(struct r8152 *tp)
+ {
+ 	u32 ocp_data;
+@@ -4340,7 +4841,7 @@ static void r8152b_exit_oob(struct r8152
+ 	}
+ 
+ 	/* TX share fifo free credit full threshold */
+-	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
++	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL2);
+ 
+ 	ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
+ 	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_HIGH);
+@@ -4517,6 +5018,21 @@ static int r8153b_post_firmware_1(struct
+ 	return 0;
+ }
+ 
++static int r8153c_post_firmware_1(struct r8152 *tp)
++{
++	u32 ocp_data;
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_CTRL);
++	ocp_data |= FLOW_CTRL_PATCH_2;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_CTRL, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK);
++	ocp_data |= FC_PATCH_TASK;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
++
++	return 0;
++}
++
+ static void r8153_aldps_en(struct r8152 *tp, bool enable)
+ {
+ 	u16 data;
+@@ -4719,6 +5235,13 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	set_bit(PHY_RESET, &tp->flags);
+ }
+ 
++static void r8153c_hw_phy_cfg(struct r8152 *tp)
++{
++	r8153b_hw_phy_cfg(tp);
++
++	tp->ups_info.r_tune = true;
++}
++
+ static void rtl8153_change_mtu(struct r8152 *tp)
+ {
+ 	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, mtu_to_size(tp->netdev->mtu));
+@@ -4806,6 +5329,7 @@ static void r8153_enter_oob(struct r8152
+ 
+ 	case RTL_VER_08:
+ 	case RTL_VER_09:
++	case RTL_VER_14:
+ 		/* Clear teredo wake event. bit[15:8] is the teredo wakeup
+ 		 * type. Set it to zero. bits[7:0] are the W1C bits about
+ 		 * the events. Set them to all 1 to clear them.
+@@ -4842,6 +5366,96 @@ static void rtl8153_disable(struct r8152
+ 	r8153_aldps_en(tp, true);
+ }
+ 
++static int rtl8156_enable(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 speed;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return -ENODEV;
++
++	set_tx_qlen(tp);
++	rtl_set_eee_plus(tp);
++	r8153_set_rx_early_timeout(tp);
++	r8153_set_rx_early_size(tp);
++
++	speed = rtl8152_get_speed(tp);
++	rtl_set_ifg(tp, speed);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++	if (speed & _2500bps)
++		ocp_data &= ~IDLE_SPDWN_EN;
++	else
++		ocp_data |= IDLE_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++
++	if (speed & _1000bps)
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_TXTWSYS, 0x11);
++	else if (speed & _500bps)
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_TXTWSYS, 0x3d);
++
++	if (tp->udev->speed == USB_SPEED_HIGH) {
++		/* USB 0xb45e[3:0] l1_nyet_hird */
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_L1_CTRL);
++		ocp_data &= ~0xf;
++		if (is_flow_control(speed))
++			ocp_data |= 0xf;
++		else
++			ocp_data |= 0x1;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_L1_CTRL, ocp_data);
++	}
++
++	return rtl_enable(tp);
++}
++
++static int rtl8156b_enable(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 speed;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return -ENODEV;
++
++	set_tx_qlen(tp);
++	rtl_set_eee_plus(tp);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_RX_AGGR_NUM);
++	ocp_data &= ~RX_AGGR_NUM_MASK;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_RX_AGGR_NUM, ocp_data);
++
++	r8153_set_rx_early_timeout(tp);
++	r8153_set_rx_early_size(tp);
++
++	speed = rtl8152_get_speed(tp);
++	rtl_set_ifg(tp, speed);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++	if (speed & _2500bps)
++		ocp_data &= ~IDLE_SPDWN_EN;
++	else
++		ocp_data |= IDLE_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++
++	if (tp->udev->speed == USB_SPEED_HIGH) {
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_L1_CTRL);
++		ocp_data &= ~0xf;
++		if (is_flow_control(speed))
++			ocp_data |= 0xf;
++		else
++			ocp_data |= 0x1;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_L1_CTRL, ocp_data);
++	}
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK);
++	ocp_data &= ~FC_PATCH_TASK;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
++	usleep_range(1000, 2000);
++	ocp_data |= FC_PATCH_TASK;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
++
++	return rtl_enable(tp);
++}
++
+ static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u32 speed, u8 duplex,
+ 			     u32 advertising)
+ {
+@@ -4890,58 +5504,73 @@ static int rtl8152_set_speed(struct r815
+ 
+ 		tp->mii.force_media = 1;
+ 	} else {
+-		u16 anar, tmp1;
++		u16 orig, new1;
+ 		u32 support;
+ 
+ 		support = RTL_ADVERTISED_10_HALF | RTL_ADVERTISED_10_FULL |
+ 			  RTL_ADVERTISED_100_HALF | RTL_ADVERTISED_100_FULL;
+ 
+-		if (tp->mii.supports_gmii)
++		if (tp->mii.supports_gmii) {
+ 			support |= RTL_ADVERTISED_1000_FULL;
+ 
++			if (tp->support_2500full)
++				support |= RTL_ADVERTISED_2500_FULL;
++		}
++
+ 		if (!(advertising & support))
+ 			return -EINVAL;
+ 
+-		anar = r8152_mdio_read(tp, MII_ADVERTISE);
+-		tmp1 = anar & ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
++		orig = r8152_mdio_read(tp, MII_ADVERTISE);
++		new1 = orig & ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
+ 				ADVERTISE_100HALF | ADVERTISE_100FULL);
+ 		if (advertising & RTL_ADVERTISED_10_HALF) {
+-			tmp1 |= ADVERTISE_10HALF;
++			new1 |= ADVERTISE_10HALF;
+ 			tp->ups_info.speed_duplex = NWAY_10M_HALF;
+ 		}
+ 		if (advertising & RTL_ADVERTISED_10_FULL) {
+-			tmp1 |= ADVERTISE_10FULL;
++			new1 |= ADVERTISE_10FULL;
+ 			tp->ups_info.speed_duplex = NWAY_10M_FULL;
+ 		}
+ 
+ 		if (advertising & RTL_ADVERTISED_100_HALF) {
+-			tmp1 |= ADVERTISE_100HALF;
++			new1 |= ADVERTISE_100HALF;
+ 			tp->ups_info.speed_duplex = NWAY_100M_HALF;
+ 		}
+ 		if (advertising & RTL_ADVERTISED_100_FULL) {
+-			tmp1 |= ADVERTISE_100FULL;
++			new1 |= ADVERTISE_100FULL;
+ 			tp->ups_info.speed_duplex = NWAY_100M_FULL;
+ 		}
+ 
+-		if (anar != tmp1) {
+-			r8152_mdio_write(tp, MII_ADVERTISE, tmp1);
+-			tp->mii.advertising = tmp1;
++		if (orig != new1) {
++			r8152_mdio_write(tp, MII_ADVERTISE, new1);
++			tp->mii.advertising = new1;
+ 		}
+ 
+ 		if (tp->mii.supports_gmii) {
+-			u16 gbcr;
+-
+-			gbcr = r8152_mdio_read(tp, MII_CTRL1000);
+-			tmp1 = gbcr & ~(ADVERTISE_1000FULL |
++			orig = r8152_mdio_read(tp, MII_CTRL1000);
++			new1 = orig & ~(ADVERTISE_1000FULL |
+ 					ADVERTISE_1000HALF);
+ 
+ 			if (advertising & RTL_ADVERTISED_1000_FULL) {
+-				tmp1 |= ADVERTISE_1000FULL;
++				new1 |= ADVERTISE_1000FULL;
+ 				tp->ups_info.speed_duplex = NWAY_1000M_FULL;
+ 			}
+ 
+-			if (gbcr != tmp1)
+-				r8152_mdio_write(tp, MII_CTRL1000, tmp1);
++			if (orig != new1)
++				r8152_mdio_write(tp, MII_CTRL1000, new1);
++		}
++
++		if (tp->support_2500full) {
++			orig = ocp_reg_read(tp, OCP_10GBT_CTRL);
++			new1 = orig & ~MDIO_AN_10GBT_CTRL_ADV2_5G;
++
++			if (advertising & RTL_ADVERTISED_2500_FULL) {
++				new1 |= MDIO_AN_10GBT_CTRL_ADV2_5G;
++				tp->ups_info.speed_duplex = NWAY_2500M_FULL;
++			}
++
++			if (orig != new1)
++				ocp_reg_write(tp, OCP_10GBT_CTRL, new1);
+ 		}
+ 
+ 		bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
+@@ -5097,6 +5726,253 @@ static void rtl8153b_down(struct r8152 *
+ 	r8153_aldps_en(tp, true);
+ }
+ 
++static void rtl8153c_change_mtu(struct r8152 *tp)
++{
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, mtu_to_size(tp->netdev->mtu));
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, 10 * 1024 / 64);
++
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, 512 / 64);
++
++	/* Adjust the tx fifo free credit full threshold, otherwise
++	 * the fifo would be too small to send a jumbo frame packet.
++	 */
++	if (tp->netdev->mtu < 8000)
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_TXFIFO_FULL, 2048 / 8);
++	else
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_TXFIFO_FULL, 900 / 8);
++}
++
++static void rtl8153c_up(struct r8152 *tp)
++{
++	u32 ocp_data;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return;
++
++	r8153b_u1u2en(tp, false);
++	r8153_u2p3en(tp, false);
++	r8153_aldps_en(tp, false);
++
++	rxdy_gated_en(tp, true);
++	r8153_teredo_off(tp);
++
++	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
++	ocp_data &= ~RCR_ACPT_ALL;
++	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
++
++	rtl8152_nic_reset(tp);
++	rtl_reset_bmu(tp);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
++	ocp_data &= ~NOW_IS_OOB;
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
++	ocp_data &= ~MCU_BORW_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
++
++	wait_oob_link_list_ready(tp);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
++	ocp_data |= RE_INIT_LL;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
++
++	wait_oob_link_list_ready(tp);
++
++	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
++
++	rtl8153c_change_mtu(tp);
++
++	rtl8152_nic_reset(tp);
++
++	/* rx share fifo credit full threshold */
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, 0x02);
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_RXFIFO_FULL, 0x08);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_NORMAL);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_NORMAL);
++
++	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_THR_B);
++
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG34);
++	ocp_data |= BIT(8);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG34, ocp_data);
++
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
++	ocp_data &= ~PLA_MCU_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
++
++	r8153_aldps_en(tp, true);
++	r8153b_u1u2en(tp, true);
++}
++
++static inline u32 fc_pause_on_auto(struct r8152 *tp)
++{
++	return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 6 * 1024);
++}
++
++static inline u32 fc_pause_off_auto(struct r8152 *tp)
++{
++	return (ALIGN(mtu_to_size(tp->netdev->mtu), 1024) + 14 * 1024);
++}
++
++static void r8156_fc_parameter(struct r8152 *tp)
++{
++	u32 pause_on = tp->fc_pause_on ? tp->fc_pause_on : fc_pause_on_auto(tp);
++	u32 pause_off = tp->fc_pause_off ? tp->fc_pause_off : fc_pause_off_auto(tp);
++
++	switch (tp->version) {
++	case RTL_VER_10:
++	case RTL_VER_11:
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, pause_on / 8);
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, pause_off / 8);
++		break;
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_FULL, pause_on / 16);
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_RX_FIFO_EMPTY, pause_off / 16);
++		break;
++	default:
++		break;
++	}
++}
++
++static void rtl8156_change_mtu(struct r8152 *tp)
++{
++	u32 rx_max_size = mtu_to_size(tp->netdev->mtu);
++
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, rx_max_size);
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO);
++	r8156_fc_parameter(tp);
++
++	/* TX share fifo free credit full threshold */
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, 512 / 64);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TXFIFO_FULL,
++		       ALIGN(rx_max_size + sizeof(struct tx_desc), 1024) / 16);
++}
++
++static void rtl8156_up(struct r8152 *tp)
++{
++	u32 ocp_data;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return;
++
++	r8153b_u1u2en(tp, false);
++	r8153_u2p3en(tp, false);
++	r8153_aldps_en(tp, false);
++
++	rxdy_gated_en(tp, true);
++	r8153_teredo_off(tp);
++
++	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
++	ocp_data &= ~RCR_ACPT_ALL;
++	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
++
++	rtl8152_nic_reset(tp);
++	rtl_reset_bmu(tp);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
++	ocp_data &= ~NOW_IS_OOB;
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
++	ocp_data &= ~MCU_BORW_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
++
++	rtl_rx_vlan_en(tp, tp->netdev->features & NETIF_F_HW_VLAN_CTAG_RX);
++
++	rtl8156_change_mtu(tp);
++
++	switch (tp->version) {
++	case RTL_TEST_01:
++	case RTL_VER_10:
++	case RTL_VER_11:
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_BMU_CONFIG);
++		ocp_data |= ACT_ODMA;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_BMU_CONFIG, ocp_data);
++		break;
++	default:
++		break;
++	}
++
++	/* share FIFO settings */
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_FULL);
++	ocp_data &= ~RXFIFO_FULL_MASK;
++	ocp_data |= 0x08;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RXFIFO_FULL, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
++	ocp_data &= ~PLA_MCU_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_SPEED_OPTION);
++	ocp_data &= ~(RG_PWRDN_EN | ALL_SPEED_OFF);
++	ocp_write_word(tp, MCU_TYPE_USB, USB_SPEED_OPTION, ocp_data);
++
++	ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, 0x00600400);
++
++	if (tp->saved_wolopts != __rtl_get_wol(tp)) {
++		netif_warn(tp, ifup, tp->netdev, "wol setting is changed\n");
++		__rtl_set_wol(tp, tp->saved_wolopts);
++	}
++
++	r8153_aldps_en(tp, true);
++	r8153_u2p3en(tp, true);
++
++	if (tp->udev->speed >= USB_SPEED_SUPER)
++		r8153b_u1u2en(tp, true);
++}
++
++static void rtl8156_down(struct r8152 *tp)
++{
++	u32 ocp_data;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags)) {
++		rtl_drop_queued_tx(tp);
++		return;
++	}
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
++	ocp_data |= PLA_MCU_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
++
++	r8153b_u1u2en(tp, false);
++	r8153_u2p3en(tp, false);
++	r8153b_power_cut_en(tp, false);
++	r8153_aldps_en(tp, false);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
++	ocp_data &= ~NOW_IS_OOB;
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
++
++	rtl_disable(tp);
++	rtl_reset_bmu(tp);
++
++	/* Clear teredo wake event. bit[15:8] is the teredo wakeup
++	 * type. Set it to zero. bits[7:0] are the W1C bits about
++	 * the events. Set them to all 1 to clear them.
++	 */
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_TEREDO_WAKE_BASE, 0x00ff);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
++	ocp_data |= NOW_IS_OOB;
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
++
++	rtl_rx_vlan_en(tp, true);
++	rxdy_gated_en(tp, false);
++
++	ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
++	ocp_data |= RCR_APM | RCR_AM | RCR_AB;
++	ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
++
++	r8153_aldps_en(tp, true);
++}
++
+ static bool rtl8152_in_nway(struct r8152 *tp)
+ {
+ 	u16 nway_state;
+@@ -5127,7 +6003,7 @@ static void set_carrier(struct r8152 *tp
+ {
+ 	struct net_device *netdev = tp->netdev;
+ 	struct napi_struct *napi = &tp->napi;
+-	u8 speed;
++	u16 speed;
+ 
+ 	speed = rtl8152_get_speed(tp);
+ 
+@@ -5140,7 +6016,7 @@ static void set_carrier(struct r8152 *tp
+ 			rtl_start_rx(tp);
+ 			clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
+ 			_rtl8152_set_rx_mode(netdev);
+-			napi_enable(&tp->napi);
++			napi_enable(napi);
+ 			netif_wake_queue(netdev);
+ 			netif_info(tp, link, netdev, "carrier on\n");
+ 		} else if (netif_queue_stopped(netdev) &&
+@@ -5502,14 +6378,9 @@ static void r8153_init(struct r8152 *tp)
+ 
+ 	ocp_write_word(tp, MCU_TYPE_USB, USB_CONNECT_TIMER, 0x0001);
+ 
+-	/* MAC clock speed down */
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0);
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0);
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0);
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0);
+-
+ 	r8153_power_cut_en(tp, false);
+ 	rtl_runtime_suspend_enable(tp, false);
++	r8153_mac_clk_speed_down(tp, false);
+ 	r8153_u1u2en(tp, true);
+ 	usb_enable_lpm(tp->udev);
+ 
+@@ -5600,9 +6471,7 @@ static void r8153b_init(struct r8152 *tp
+ 	usb_enable_lpm(tp->udev);
+ 
+ 	/* MAC clock speed down */
+-	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2);
+-	ocp_data |= MAC_CLK_SPDWN_EN;
+-	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, ocp_data);
++	r8153_mac_clk_speed_down(tp, true);
+ 
+ 	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
+ 	ocp_data &= ~PLA_MCU_SPDWN_EN;
+@@ -5629,6 +6498,1069 @@ static void r8153b_init(struct r8152 *tp
+ 	tp->coalesce = 15000;	/* 15 us */
+ }
+ 
++static void r8153c_init(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 data;
++	int i;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return;
++
++	r8153b_u1u2en(tp, false);
++
++	/* Disable spi_en */
++	ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CONFIG5);
++	ocp_data &= ~BIT(3);
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CONFIG5, ocp_data);
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, 0xcbf0);
++	ocp_data |= BIT(1);
++	ocp_write_word(tp, MCU_TYPE_USB, 0xcbf0, ocp_data);
++
++	for (i = 0; i < 500; i++) {
++		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++		    AUTOLOAD_DONE)
++			break;
++
++		msleep(20);
++		if (test_bit(RTL8152_UNPLUG, &tp->flags))
++			return;
++	}
++
++	data = r8153_phy_status(tp, 0);
++
++	data = r8152_mdio_read(tp, MII_BMCR);
++	if (data & BMCR_PDOWN) {
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++	}
++
++	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
++
++	r8153_u2p3en(tp, false);
++
++	/* MSC timer = 0xfff * 8ms = 32760 ms */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
++
++	r8153b_power_cut_en(tp, false);
++	r8153c_ups_en(tp, false);
++	r8153_queue_wake(tp, false);
++	rtl_runtime_suspend_enable(tp, false);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS);
++	if (rtl8152_get_speed(tp) & LINK_STATUS)
++		ocp_data |= CUR_LINK_OK;
++	else
++		ocp_data &= ~CUR_LINK_OK;
++
++	ocp_data |= POLL_LINK_CHG;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
++
++	r8153b_u1u2en(tp, true);
++
++	usb_enable_lpm(tp->udev);
++
++	/* MAC clock speed down */
++	r8153_mac_clk_speed_down(tp, true);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_MISC_2);
++	ocp_data &= ~BIT(7);
++	ocp_write_byte(tp, MCU_TYPE_USB, USB_MISC_2, ocp_data);
++
++	set_bit(GREEN_ETHERNET, &tp->flags);
++
++	/* rx aggregation */
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
++	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
++	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++	rtl_tally_reset(tp);
++
++	tp->coalesce = 15000;	/* 15 us */
++}
++
++static void r8156_hw_phy_cfg(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 data;
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
++	if (ocp_data & PCUT_STATUS) {
++		ocp_data &= ~PCUT_STATUS;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++	}
++
++	data = r8153_phy_status(tp, 0);
++	switch (data) {
++	case PHY_STAT_EXT_INIT:
++		rtl8152_apply_firmware(tp, true);
++
++		data = ocp_reg_read(tp, 0xa468);
++		data &= ~(BIT(3) | BIT(1));
++		ocp_reg_write(tp, 0xa468, data);
++		break;
++	case PHY_STAT_LAN_ON:
++	case PHY_STAT_PWRDN:
++	default:
++		rtl8152_apply_firmware(tp, false);
++		break;
++	}
++
++	/* disable ALDPS before updating the PHY parameters */
++	r8153_aldps_en(tp, false);
++
++	/* disable EEE before updating the PHY parameters */
++	rtl_eee_enable(tp, false);
++
++	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
++	WARN_ON_ONCE(data != PHY_STAT_LAN_ON);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
++	ocp_data |= PFM_PWM_SWITCH;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
++
++	switch (tp->version) {
++	case RTL_VER_10:
++		data = ocp_reg_read(tp, 0xad40);
++		data &= ~0x3ff;
++		data |= BIT(7) | BIT(2);
++		ocp_reg_write(tp, 0xad40, data);
++
++		data = ocp_reg_read(tp, 0xad4e);
++		data |= BIT(4);
++		ocp_reg_write(tp, 0xad4e, data);
++		data = ocp_reg_read(tp, 0xad16);
++		data &= ~0x3ff;
++		data |= 0x6;
++		ocp_reg_write(tp, 0xad16, data);
++		data = ocp_reg_read(tp, 0xad32);
++		data &= ~0x3f;
++		data |= 6;
++		ocp_reg_write(tp, 0xad32, data);
++		data = ocp_reg_read(tp, 0xac08);
++		data &= ~(BIT(12) | BIT(8));
++		ocp_reg_write(tp, 0xac08, data);
++		data = ocp_reg_read(tp, 0xac8a);
++		data |= BIT(12) | BIT(13) | BIT(14);
++		data &= ~BIT(15);
++		ocp_reg_write(tp, 0xac8a, data);
++		data = ocp_reg_read(tp, 0xad18);
++		data |= BIT(10);
++		ocp_reg_write(tp, 0xad18, data);
++		data = ocp_reg_read(tp, 0xad1a);
++		data |= 0x3ff;
++		ocp_reg_write(tp, 0xad1a, data);
++		data = ocp_reg_read(tp, 0xad1c);
++		data |= 0x3ff;
++		ocp_reg_write(tp, 0xad1c, data);
++
++		data = sram_read(tp, 0x80ea);
++		data &= ~0xff00;
++		data |= 0xc400;
++		sram_write(tp, 0x80ea, data);
++		data = sram_read(tp, 0x80eb);
++		data &= ~0x0700;
++		data |= 0x0300;
++		sram_write(tp, 0x80eb, data);
++		data = sram_read(tp, 0x80f8);
++		data &= ~0xff00;
++		data |= 0x1c00;
++		sram_write(tp, 0x80f8, data);
++		data = sram_read(tp, 0x80f1);
++		data &= ~0xff00;
++		data |= 0x3000;
++		sram_write(tp, 0x80f1, data);
++
++		data = sram_read(tp, 0x80fe);
++		data &= ~0xff00;
++		data |= 0xa500;
++		sram_write(tp, 0x80fe, data);
++		data = sram_read(tp, 0x8102);
++		data &= ~0xff00;
++		data |= 0x5000;
++		sram_write(tp, 0x8102, data);
++		data = sram_read(tp, 0x8015);
++		data &= ~0xff00;
++		data |= 0x3300;
++		sram_write(tp, 0x8015, data);
++		data = sram_read(tp, 0x8100);
++		data &= ~0xff00;
++		data |= 0x7000;
++		sram_write(tp, 0x8100, data);
++		data = sram_read(tp, 0x8014);
++		data &= ~0xff00;
++		data |= 0xf000;
++		sram_write(tp, 0x8014, data);
++		data = sram_read(tp, 0x8016);
++		data &= ~0xff00;
++		data |= 0x6500;
++		sram_write(tp, 0x8016, data);
++		data = sram_read(tp, 0x80dc);
++		data &= ~0xff00;
++		data |= 0xed00;
++		sram_write(tp, 0x80dc, data);
++		data = sram_read(tp, 0x80df);
++		data |= BIT(8);
++		sram_write(tp, 0x80df, data);
++		data = sram_read(tp, 0x80e1);
++		data &= ~BIT(8);
++		sram_write(tp, 0x80e1, data);
++
++		data = ocp_reg_read(tp, 0xbf06);
++		data &= ~0x003f;
++		data |= 0x0038;
++		ocp_reg_write(tp, 0xbf06, data);
++
++		sram_write(tp, 0x819f, 0xddb6);
++
++		ocp_reg_write(tp, 0xbc34, 0x5555);
++		data = ocp_reg_read(tp, 0xbf0a);
++		data &= ~0x0e00;
++		data |= 0x0a00;
++		ocp_reg_write(tp, 0xbf0a, data);
++
++		data = ocp_reg_read(tp, 0xbd2c);
++		data &= ~BIT(13);
++		ocp_reg_write(tp, 0xbd2c, data);
++		break;
++	case RTL_VER_11:
++		data = ocp_reg_read(tp, 0xad16);
++		data |= 0x3ff;
++		ocp_reg_write(tp, 0xad16, data);
++		data = ocp_reg_read(tp, 0xad32);
++		data &= ~0x3f;
++		data |= 6;
++		ocp_reg_write(tp, 0xad32, data);
++		data = ocp_reg_read(tp, 0xac08);
++		data &= ~(BIT(12) | BIT(8));
++		ocp_reg_write(tp, 0xac08, data);
++		data = ocp_reg_read(tp, 0xacc0);
++		data &= ~0x3;
++		data |= BIT(1);
++		ocp_reg_write(tp, 0xacc0, data);
++		data = ocp_reg_read(tp, 0xad40);
++		data &= ~0xe7;
++		data |= BIT(6) | BIT(2);
++		ocp_reg_write(tp, 0xad40, data);
++		data = ocp_reg_read(tp, 0xac14);
++		data &= ~BIT(7);
++		ocp_reg_write(tp, 0xac14, data);
++		data = ocp_reg_read(tp, 0xac80);
++		data &= ~(BIT(8) | BIT(9));
++		ocp_reg_write(tp, 0xac80, data);
++		data = ocp_reg_read(tp, 0xac5e);
++		data &= ~0x7;
++		data |= BIT(1);
++		ocp_reg_write(tp, 0xac5e, data);
++		ocp_reg_write(tp, 0xad4c, 0x00a8);
++		ocp_reg_write(tp, 0xac5c, 0x01ff);
++		data = ocp_reg_read(tp, 0xac8a);
++		data &= ~0xf0;
++		data |= BIT(4) | BIT(5);
++		ocp_reg_write(tp, 0xac8a, data);
++		ocp_reg_write(tp, 0xb87c, 0x8157);
++		data = ocp_reg_read(tp, 0xb87e);
++		data &= ~0xff00;
++		data |= 0x0500;
++		ocp_reg_write(tp, 0xb87e, data);
++		ocp_reg_write(tp, 0xb87c, 0x8159);
++		data = ocp_reg_read(tp, 0xb87e);
++		data &= ~0xff00;
++		data |= 0x0700;
++		ocp_reg_write(tp, 0xb87e, data);
++
++		/* AAGC */
++		ocp_reg_write(tp, 0xb87c, 0x80a2);
++		ocp_reg_write(tp, 0xb87e, 0x0153);
++		ocp_reg_write(tp, 0xb87c, 0x809c);
++		ocp_reg_write(tp, 0xb87e, 0x0153);
++
++		/* EEE parameter */
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_TXTWSYS_2P5G, 0x0056);
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_USB_CFG);
++		ocp_data |= EN_XG_LIP | EN_G_LIP;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_USB_CFG, ocp_data);
++
++		sram_write(tp, 0x8257, 0x020f); /*  XG PLL */
++		sram_write(tp, 0x80ea, 0x7843); /* GIGA Master */
++
++		if (rtl_phy_patch_request(tp, true, true))
++			return;
++
++		/* Advance EEE */
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++		ocp_data |= EEE_SPDWN_EN;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++
++		data = ocp_reg_read(tp, OCP_DOWN_SPEED);
++		data &= ~(EN_EEE_100 | EN_EEE_1000);
++		data |= EN_10M_CLKDIV;
++		ocp_reg_write(tp, OCP_DOWN_SPEED, data);
++		tp->ups_info._10m_ckdiv = true;
++		tp->ups_info.eee_plloff_100 = false;
++		tp->ups_info.eee_plloff_giga = false;
++
++		data = ocp_reg_read(tp, OCP_POWER_CFG);
++		data &= ~EEE_CLKDIV_EN;
++		ocp_reg_write(tp, OCP_POWER_CFG, data);
++		tp->ups_info.eee_ckdiv = false;
++
++		ocp_reg_write(tp, OCP_SYSCLK_CFG, 0);
++		ocp_reg_write(tp, OCP_SYSCLK_CFG, sysclk_div_expo(5));
++		tp->ups_info._250m_ckdiv = false;
++
++		rtl_phy_patch_request(tp, false, true);
++
++		/* enable ADC Ibias Cal */
++		data = ocp_reg_read(tp, 0xd068);
++		data |= BIT(13);
++		ocp_reg_write(tp, 0xd068, data);
++
++		/* enable Thermal Sensor */
++		data = sram_read(tp, 0x81a2);
++		data &= ~BIT(8);
++		sram_write(tp, 0x81a2, data);
++		data = ocp_reg_read(tp, 0xb54c);
++		data &= ~0xff00;
++		data |= 0xdb00;
++		ocp_reg_write(tp, 0xb54c, data);
++
++		/* Nway 2.5G Lite */
++		data = ocp_reg_read(tp, 0xa454);
++		data &= ~BIT(0);
++		ocp_reg_write(tp, 0xa454, data);
++
++		/* CS DSP solution */
++		data = ocp_reg_read(tp, OCP_10GBT_CTRL);
++		data |= RTL_ADV2_5G_F_R;
++		ocp_reg_write(tp, OCP_10GBT_CTRL, data);
++		data = ocp_reg_read(tp, 0xad4e);
++		data &= ~BIT(4);
++		ocp_reg_write(tp, 0xad4e, data);
++		data = ocp_reg_read(tp, 0xa86a);
++		data &= ~BIT(0);
++		ocp_reg_write(tp, 0xa86a, data);
++
++		/* MDI SWAP */
++		if ((ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CFG) & MID_REVERSE) &&
++		    (ocp_reg_read(tp, 0xd068) & BIT(1))) {
++			u16 swap_a, swap_b;
++
++			data = ocp_reg_read(tp, 0xd068);
++			data &= ~0x1f;
++			data |= 0x1; /* p0 */
++			ocp_reg_write(tp, 0xd068, data);
++			swap_a = ocp_reg_read(tp, 0xd06a);
++			data &= ~0x18;
++			data |= 0x18; /* p3 */
++			ocp_reg_write(tp, 0xd068, data);
++			swap_b = ocp_reg_read(tp, 0xd06a);
++			data &= ~0x18; /* p0 */
++			ocp_reg_write(tp, 0xd068, data);
++			ocp_reg_write(tp, 0xd06a,
++				      (swap_a & ~0x7ff) | (swap_b & 0x7ff));
++			data |= 0x18; /* p3 */
++			ocp_reg_write(tp, 0xd068, data);
++			ocp_reg_write(tp, 0xd06a,
++				      (swap_b & ~0x7ff) | (swap_a & 0x7ff));
++			data &= ~0x18;
++			data |= 0x08; /* p1 */
++			ocp_reg_write(tp, 0xd068, data);
++			swap_a = ocp_reg_read(tp, 0xd06a);
++			data &= ~0x18;
++			data |= 0x10; /* p2 */
++			ocp_reg_write(tp, 0xd068, data);
++			swap_b = ocp_reg_read(tp, 0xd06a);
++			data &= ~0x18;
++			data |= 0x08; /* p1 */
++			ocp_reg_write(tp, 0xd068, data);
++			ocp_reg_write(tp, 0xd06a,
++				      (swap_a & ~0x7ff) | (swap_b & 0x7ff));
++			data &= ~0x18;
++			data |= 0x10; /* p2 */
++			ocp_reg_write(tp, 0xd068, data);
++			ocp_reg_write(tp, 0xd06a,
++				      (swap_b & ~0x7ff) | (swap_a & 0x7ff));
++			swap_a = ocp_reg_read(tp, 0xbd5a);
++			swap_b = ocp_reg_read(tp, 0xbd5c);
++			ocp_reg_write(tp, 0xbd5a, (swap_a & ~0x1f1f) |
++				      ((swap_b & 0x1f) << 8) |
++				      ((swap_b >> 8) & 0x1f));
++			ocp_reg_write(tp, 0xbd5c, (swap_b & ~0x1f1f) |
++				      ((swap_a & 0x1f) << 8) |
++				      ((swap_a >> 8) & 0x1f));
++			swap_a = ocp_reg_read(tp, 0xbc18);
++			swap_b = ocp_reg_read(tp, 0xbc1a);
++			ocp_reg_write(tp, 0xbc18, (swap_a & ~0x1f1f) |
++				      ((swap_b & 0x1f) << 8) |
++				      ((swap_b >> 8) & 0x1f));
++			ocp_reg_write(tp, 0xbc1a, (swap_b & ~0x1f1f) |
++				      ((swap_a & 0x1f) << 8) |
++				      ((swap_a >> 8) & 0x1f));
++		}
++		break;
++	default:
++		break;
++	}
++
++	rtl_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
++
++	data = ocp_reg_read(tp, 0xa428);
++	data &= ~BIT(9);
++	ocp_reg_write(tp, 0xa428, data);
++	data = ocp_reg_read(tp, 0xa5ea);
++	data &= ~BIT(0);
++	ocp_reg_write(tp, 0xa5ea, data);
++	tp->ups_info.lite_mode = 0;
++
++	if (tp->eee_en)
++		rtl_eee_enable(tp, true);
++
++	r8153_aldps_en(tp, true);
++	r8152b_enable_fc(tp);
++	r8153_u2p3en(tp, true);
++
++	set_bit(PHY_RESET, &tp->flags);
++}
++
++static void r8156b_hw_phy_cfg(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 data;
++
++	switch (tp->version) {
++	case RTL_VER_12:
++		ocp_reg_write(tp, 0xbf86, 0x9000);
++		data = ocp_reg_read(tp, 0xc402);
++		data |= BIT(10);
++		ocp_reg_write(tp, 0xc402, data);
++		data &= ~BIT(10);
++		ocp_reg_write(tp, 0xc402, data);
++		ocp_reg_write(tp, 0xbd86, 0x1010);
++		ocp_reg_write(tp, 0xbd88, 0x1010);
++		data = ocp_reg_read(tp, 0xbd4e);
++		data &= ~(BIT(10) | BIT(11));
++		data |= BIT(11);
++		ocp_reg_write(tp, 0xbd4e, data);
++		data = ocp_reg_read(tp, 0xbf46);
++		data &= ~0xf00;
++		data |= 0x700;
++		ocp_reg_write(tp, 0xbf46, data);
++		break;
++	case RTL_VER_13:
++	case RTL_VER_15:
++		r8156b_wait_loading_flash(tp);
++		break;
++	default:
++		break;
++	}
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
++	if (ocp_data & PCUT_STATUS) {
++		ocp_data &= ~PCUT_STATUS;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++	}
++
++	data = r8153_phy_status(tp, 0);
++	switch (data) {
++	case PHY_STAT_EXT_INIT:
++		rtl8152_apply_firmware(tp, true);
++
++		data = ocp_reg_read(tp, 0xa466);
++		data &= ~BIT(0);
++		ocp_reg_write(tp, 0xa466, data);
++
++		data = ocp_reg_read(tp, 0xa468);
++		data &= ~(BIT(3) | BIT(1));
++		ocp_reg_write(tp, 0xa468, data);
++		break;
++	case PHY_STAT_LAN_ON:
++	case PHY_STAT_PWRDN:
++	default:
++		rtl8152_apply_firmware(tp, false);
++		break;
++	}
++
++	data = r8152_mdio_read(tp, MII_BMCR);
++	if (data & BMCR_PDOWN) {
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++	}
++
++	/* disable ALDPS before updating the PHY parameters */
++	r8153_aldps_en(tp, false);
++
++	/* disable EEE before updating the PHY parameters */
++	rtl_eee_enable(tp, false);
++
++	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
++	WARN_ON_ONCE(data != PHY_STAT_LAN_ON);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
++	ocp_data |= PFM_PWM_SWITCH;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
++
++	switch (tp->version) {
++	case RTL_VER_12:
++		data = ocp_reg_read(tp, 0xbc08);
++		data |= BIT(3) | BIT(2);
++		ocp_reg_write(tp, 0xbc08, data);
++
++		data = sram_read(tp, 0x8fff);
++		data &= ~0xff00;
++		data |= 0x0400;
++		sram_write(tp, 0x8fff, data);
++
++		data = ocp_reg_read(tp, 0xacda);
++		data |= 0xff00;
++		ocp_reg_write(tp, 0xacda, data);
++		data = ocp_reg_read(tp, 0xacde);
++		data |= 0xf000;
++		ocp_reg_write(tp, 0xacde, data);
++		ocp_reg_write(tp, 0xac8c, 0x0ffc);
++		ocp_reg_write(tp, 0xac46, 0xb7b4);
++		ocp_reg_write(tp, 0xac50, 0x0fbc);
++		ocp_reg_write(tp, 0xac3c, 0x9240);
++		ocp_reg_write(tp, 0xac4e, 0x0db4);
++		ocp_reg_write(tp, 0xacc6, 0x0707);
++		ocp_reg_write(tp, 0xacc8, 0xa0d3);
++		ocp_reg_write(tp, 0xad08, 0x0007);
++
++		ocp_reg_write(tp, 0xb87c, 0x8560);
++		ocp_reg_write(tp, 0xb87e, 0x19cc);
++		ocp_reg_write(tp, 0xb87c, 0x8562);
++		ocp_reg_write(tp, 0xb87e, 0x19cc);
++		ocp_reg_write(tp, 0xb87c, 0x8564);
++		ocp_reg_write(tp, 0xb87e, 0x19cc);
++		ocp_reg_write(tp, 0xb87c, 0x8566);
++		ocp_reg_write(tp, 0xb87e, 0x147d);
++		ocp_reg_write(tp, 0xb87c, 0x8568);
++		ocp_reg_write(tp, 0xb87e, 0x147d);
++		ocp_reg_write(tp, 0xb87c, 0x856a);
++		ocp_reg_write(tp, 0xb87e, 0x147d);
++		ocp_reg_write(tp, 0xb87c, 0x8ffe);
++		ocp_reg_write(tp, 0xb87e, 0x0907);
++		ocp_reg_write(tp, 0xb87c, 0x80d6);
++		ocp_reg_write(tp, 0xb87e, 0x2801);
++		ocp_reg_write(tp, 0xb87c, 0x80f2);
++		ocp_reg_write(tp, 0xb87e, 0x2801);
++		ocp_reg_write(tp, 0xb87c, 0x80f4);
++		ocp_reg_write(tp, 0xb87e, 0x6077);
++		ocp_reg_write(tp, 0xb506, 0x01e7);
++
++		ocp_reg_write(tp, 0xb87c, 0x8013);
++		ocp_reg_write(tp, 0xb87e, 0x0700);
++		ocp_reg_write(tp, 0xb87c, 0x8fb9);
++		ocp_reg_write(tp, 0xb87e, 0x2801);
++		ocp_reg_write(tp, 0xb87c, 0x8fba);
++		ocp_reg_write(tp, 0xb87e, 0x0100);
++		ocp_reg_write(tp, 0xb87c, 0x8fbc);
++		ocp_reg_write(tp, 0xb87e, 0x1900);
++		ocp_reg_write(tp, 0xb87c, 0x8fbe);
++		ocp_reg_write(tp, 0xb87e, 0xe100);
++		ocp_reg_write(tp, 0xb87c, 0x8fc0);
++		ocp_reg_write(tp, 0xb87e, 0x0800);
++		ocp_reg_write(tp, 0xb87c, 0x8fc2);
++		ocp_reg_write(tp, 0xb87e, 0xe500);
++		ocp_reg_write(tp, 0xb87c, 0x8fc4);
++		ocp_reg_write(tp, 0xb87e, 0x0f00);
++		ocp_reg_write(tp, 0xb87c, 0x8fc6);
++		ocp_reg_write(tp, 0xb87e, 0xf100);
++		ocp_reg_write(tp, 0xb87c, 0x8fc8);
++		ocp_reg_write(tp, 0xb87e, 0x0400);
++		ocp_reg_write(tp, 0xb87c, 0x8fca);
++		ocp_reg_write(tp, 0xb87e, 0xf300);
++		ocp_reg_write(tp, 0xb87c, 0x8fcc);
++		ocp_reg_write(tp, 0xb87e, 0xfd00);
++		ocp_reg_write(tp, 0xb87c, 0x8fce);
++		ocp_reg_write(tp, 0xb87e, 0xff00);
++		ocp_reg_write(tp, 0xb87c, 0x8fd0);
++		ocp_reg_write(tp, 0xb87e, 0xfb00);
++		ocp_reg_write(tp, 0xb87c, 0x8fd2);
++		ocp_reg_write(tp, 0xb87e, 0x0100);
++		ocp_reg_write(tp, 0xb87c, 0x8fd4);
++		ocp_reg_write(tp, 0xb87e, 0xf400);
++		ocp_reg_write(tp, 0xb87c, 0x8fd6);
++		ocp_reg_write(tp, 0xb87e, 0xff00);
++		ocp_reg_write(tp, 0xb87c, 0x8fd8);
++		ocp_reg_write(tp, 0xb87e, 0xf600);
++
++		ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_USB_CFG);
++		ocp_data |= EN_XG_LIP | EN_G_LIP;
++		ocp_write_byte(tp, MCU_TYPE_PLA, PLA_USB_CFG, ocp_data);
++		ocp_reg_write(tp, 0xb87c, 0x813d);
++		ocp_reg_write(tp, 0xb87e, 0x390e);
++		ocp_reg_write(tp, 0xb87c, 0x814f);
++		ocp_reg_write(tp, 0xb87e, 0x790e);
++		ocp_reg_write(tp, 0xb87c, 0x80b0);
++		ocp_reg_write(tp, 0xb87e, 0x0f31);
++		data = ocp_reg_read(tp, 0xbf4c);
++		data |= BIT(1);
++		ocp_reg_write(tp, 0xbf4c, data);
++		data = ocp_reg_read(tp, 0xbcca);
++		data |= BIT(9) | BIT(8);
++		ocp_reg_write(tp, 0xbcca, data);
++		ocp_reg_write(tp, 0xb87c, 0x8141);
++		ocp_reg_write(tp, 0xb87e, 0x320e);
++		ocp_reg_write(tp, 0xb87c, 0x8153);
++		ocp_reg_write(tp, 0xb87e, 0x720e);
++		ocp_reg_write(tp, 0xb87c, 0x8529);
++		ocp_reg_write(tp, 0xb87e, 0x050e);
++		data = ocp_reg_read(tp, OCP_EEE_CFG);
++		data &= ~CTAP_SHORT_EN;
++		ocp_reg_write(tp, OCP_EEE_CFG, data);
++
++		sram_write(tp, 0x816c, 0xc4a0);
++		sram_write(tp, 0x8170, 0xc4a0);
++		sram_write(tp, 0x8174, 0x04a0);
++		sram_write(tp, 0x8178, 0x04a0);
++		sram_write(tp, 0x817c, 0x0719);
++		sram_write(tp, 0x8ff4, 0x0400);
++		sram_write(tp, 0x8ff1, 0x0404);
++
++		ocp_reg_write(tp, 0xbf4a, 0x001b);
++		ocp_reg_write(tp, 0xb87c, 0x8033);
++		ocp_reg_write(tp, 0xb87e, 0x7c13);
++		ocp_reg_write(tp, 0xb87c, 0x8037);
++		ocp_reg_write(tp, 0xb87e, 0x7c13);
++		ocp_reg_write(tp, 0xb87c, 0x803b);
++		ocp_reg_write(tp, 0xb87e, 0xfc32);
++		ocp_reg_write(tp, 0xb87c, 0x803f);
++		ocp_reg_write(tp, 0xb87e, 0x7c13);
++		ocp_reg_write(tp, 0xb87c, 0x8043);
++		ocp_reg_write(tp, 0xb87e, 0x7c13);
++		ocp_reg_write(tp, 0xb87c, 0x8047);
++		ocp_reg_write(tp, 0xb87e, 0x7c13);
++
++		ocp_reg_write(tp, 0xb87c, 0x8145);
++		ocp_reg_write(tp, 0xb87e, 0x370e);
++		ocp_reg_write(tp, 0xb87c, 0x8157);
++		ocp_reg_write(tp, 0xb87e, 0x770e);
++		ocp_reg_write(tp, 0xb87c, 0x8169);
++		ocp_reg_write(tp, 0xb87e, 0x0d0a);
++		ocp_reg_write(tp, 0xb87c, 0x817b);
++		ocp_reg_write(tp, 0xb87e, 0x1d0a);
++
++		data = sram_read(tp, 0x8217);
++		data &= ~0xff00;
++		data |= 0x5000;
++		sram_write(tp, 0x8217, data);
++		data = sram_read(tp, 0x821a);
++		data &= ~0xff00;
++		data |= 0x5000;
++		sram_write(tp, 0x821a, data);
++		sram_write(tp, 0x80da, 0x0403);
++		data = sram_read(tp, 0x80dc);
++		data &= ~0xff00;
++		data |= 0x1000;
++		sram_write(tp, 0x80dc, data);
++		sram_write(tp, 0x80b3, 0x0384);
++		sram_write(tp, 0x80b7, 0x2007);
++		data = sram_read(tp, 0x80ba);
++		data &= ~0xff00;
++		data |= 0x6c00;
++		sram_write(tp, 0x80ba, data);
++		sram_write(tp, 0x80b5, 0xf009);
++		data = sram_read(tp, 0x80bd);
++		data &= ~0xff00;
++		data |= 0x9f00;
++		sram_write(tp, 0x80bd, data);
++		sram_write(tp, 0x80c7, 0xf083);
++		sram_write(tp, 0x80dd, 0x03f0);
++		data = sram_read(tp, 0x80df);
++		data &= ~0xff00;
++		data |= 0x1000;
++		sram_write(tp, 0x80df, data);
++		sram_write(tp, 0x80cb, 0x2007);
++		data = sram_read(tp, 0x80ce);
++		data &= ~0xff00;
++		data |= 0x6c00;
++		sram_write(tp, 0x80ce, data);
++		sram_write(tp, 0x80c9, 0x8009);
++		data = sram_read(tp, 0x80d1);
++		data &= ~0xff00;
++		data |= 0x8000;
++		sram_write(tp, 0x80d1, data);
++		sram_write(tp, 0x80a3, 0x200a);
++		sram_write(tp, 0x80a5, 0xf0ad);
++		sram_write(tp, 0x809f, 0x6073);
++		sram_write(tp, 0x80a1, 0x000b);
++		data = sram_read(tp, 0x80a9);
++		data &= ~0xff00;
++		data |= 0xc000;
++		sram_write(tp, 0x80a9, data);
++
++		if (rtl_phy_patch_request(tp, true, true))
++			return;
++
++		data = ocp_reg_read(tp, 0xb896);
++		data &= ~BIT(0);
++		ocp_reg_write(tp, 0xb896, data);
++		data = ocp_reg_read(tp, 0xb892);
++		data &= ~0xff00;
++		ocp_reg_write(tp, 0xb892, data);
++		ocp_reg_write(tp, 0xb88e, 0xc23e);
++		ocp_reg_write(tp, 0xb890, 0x0000);
++		ocp_reg_write(tp, 0xb88e, 0xc240);
++		ocp_reg_write(tp, 0xb890, 0x0103);
++		ocp_reg_write(tp, 0xb88e, 0xc242);
++		ocp_reg_write(tp, 0xb890, 0x0507);
++		ocp_reg_write(tp, 0xb88e, 0xc244);
++		ocp_reg_write(tp, 0xb890, 0x090b);
++		ocp_reg_write(tp, 0xb88e, 0xc246);
++		ocp_reg_write(tp, 0xb890, 0x0c0e);
++		ocp_reg_write(tp, 0xb88e, 0xc248);
++		ocp_reg_write(tp, 0xb890, 0x1012);
++		ocp_reg_write(tp, 0xb88e, 0xc24a);
++		ocp_reg_write(tp, 0xb890, 0x1416);
++		data = ocp_reg_read(tp, 0xb896);
++		data |= BIT(0);
++		ocp_reg_write(tp, 0xb896, data);
++
++		rtl_phy_patch_request(tp, false, true);
++
++		data = ocp_reg_read(tp, 0xa86a);
++		data |= BIT(0);
++		ocp_reg_write(tp, 0xa86a, data);
++		data = ocp_reg_read(tp, 0xa6f0);
++		data |= BIT(0);
++		ocp_reg_write(tp, 0xa6f0, data);
++
++		ocp_reg_write(tp, 0xbfa0, 0xd70d);
++		ocp_reg_write(tp, 0xbfa2, 0x4100);
++		ocp_reg_write(tp, 0xbfa4, 0xe868);
++		ocp_reg_write(tp, 0xbfa6, 0xdc59);
++		ocp_reg_write(tp, 0xb54c, 0x3c18);
++		data = ocp_reg_read(tp, 0xbfa4);
++		data &= ~BIT(5);
++		ocp_reg_write(tp, 0xbfa4, data);
++		data = sram_read(tp, 0x817d);
++		data |= BIT(12);
++		sram_write(tp, 0x817d, data);
++		break;
++	case RTL_VER_13:
++		/* 2.5G INRX */
++		data = ocp_reg_read(tp, 0xac46);
++		data &= ~0x00f0;
++		data |= 0x0090;
++		ocp_reg_write(tp, 0xac46, data);
++		data = ocp_reg_read(tp, 0xad30);
++		data &= ~0x0003;
++		data |= 0x0001;
++		ocp_reg_write(tp, 0xad30, data);
++		fallthrough;
++	case RTL_VER_15:
++		/* EEE parameter */
++		ocp_reg_write(tp, 0xb87c, 0x80f5);
++		ocp_reg_write(tp, 0xb87e, 0x760e);
++		ocp_reg_write(tp, 0xb87c, 0x8107);
++		ocp_reg_write(tp, 0xb87e, 0x360e);
++		ocp_reg_write(tp, 0xb87c, 0x8551);
++		data = ocp_reg_read(tp, 0xb87e);
++		data &= ~0xff00;
++		data |= 0x0800;
++		ocp_reg_write(tp, 0xb87e, data);
++
++		/* ADC_PGA parameter */
++		data = ocp_reg_read(tp, 0xbf00);
++		data &= ~0xe000;
++		data |= 0xa000;
++		ocp_reg_write(tp, 0xbf00, data);
++		data = ocp_reg_read(tp, 0xbf46);
++		data &= ~0x0f00;
++		data |= 0x0300;
++		ocp_reg_write(tp, 0xbf46, data);
++
++		/* Green Table-PGA, 1G full viterbi */
++		sram_write(tp, 0x8044, 0x2417);
++		sram_write(tp, 0x804a, 0x2417);
++		sram_write(tp, 0x8050, 0x2417);
++		sram_write(tp, 0x8056, 0x2417);
++		sram_write(tp, 0x805c, 0x2417);
++		sram_write(tp, 0x8062, 0x2417);
++		sram_write(tp, 0x8068, 0x2417);
++		sram_write(tp, 0x806e, 0x2417);
++		sram_write(tp, 0x8074, 0x2417);
++		sram_write(tp, 0x807a, 0x2417);
++
++		/* XG PLL */
++		data = ocp_reg_read(tp, 0xbf84);
++		data &= ~0xe000;
++		data |= 0xa000;
++		ocp_reg_write(tp, 0xbf84, data);
++		break;
++	default:
++		break;
++	}
++
++	if (rtl_phy_patch_request(tp, true, true))
++		return;
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4);
++	ocp_data |= EEE_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, ocp_data);
++
++	data = ocp_reg_read(tp, OCP_DOWN_SPEED);
++	data &= ~(EN_EEE_100 | EN_EEE_1000);
++	data |= EN_10M_CLKDIV;
++	ocp_reg_write(tp, OCP_DOWN_SPEED, data);
++	tp->ups_info._10m_ckdiv = true;
++	tp->ups_info.eee_plloff_100 = false;
++	tp->ups_info.eee_plloff_giga = false;
++
++	data = ocp_reg_read(tp, OCP_POWER_CFG);
++	data &= ~EEE_CLKDIV_EN;
++	ocp_reg_write(tp, OCP_POWER_CFG, data);
++	tp->ups_info.eee_ckdiv = false;
++
++	rtl_phy_patch_request(tp, false, true);
++
++	rtl_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
++
++	data = ocp_reg_read(tp, 0xa428);
++	data &= ~BIT(9);
++	ocp_reg_write(tp, 0xa428, data);
++	data = ocp_reg_read(tp, 0xa5ea);
++	data &= ~BIT(0);
++	ocp_reg_write(tp, 0xa5ea, data);
++	tp->ups_info.lite_mode = 0;
++
++	if (tp->eee_en)
++		rtl_eee_enable(tp, true);
++
++	r8153_aldps_en(tp, true);
++	r8152b_enable_fc(tp);
++	r8153_u2p3en(tp, true);
++
++	set_bit(PHY_RESET, &tp->flags);
++}
++
++static void r8156_init(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 data;
++	int i;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return;
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP);
++	ocp_data &= ~EN_ALL_SPEED;
++	ocp_write_byte(tp, MCU_TYPE_USB, USB_ECM_OP, ocp_data);
++
++	ocp_write_word(tp, MCU_TYPE_USB, USB_SPEED_OPTION, 0);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_ECM_OPTION);
++	ocp_data |= BYPASS_MAC_RESET;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_ECM_OPTION, ocp_data);
++
++	r8153b_u1u2en(tp, false);
++
++	for (i = 0; i < 500; i++) {
++		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++		    AUTOLOAD_DONE)
++			break;
++
++		msleep(20);
++		if (test_bit(RTL8152_UNPLUG, &tp->flags))
++			return;
++	}
++
++	data = r8153_phy_status(tp, 0);
++	if (data == PHY_STAT_EXT_INIT) {
++		data = ocp_reg_read(tp, 0xa468);
++		data &= ~(BIT(3) | BIT(1));
++		ocp_reg_write(tp, 0xa468, data);
++	}
++
++	data = r8152_mdio_read(tp, MII_BMCR);
++	if (data & BMCR_PDOWN) {
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++	}
++
++	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
++	WARN_ON_ONCE(data != PHY_STAT_LAN_ON);
++
++	r8153_u2p3en(tp, false);
++
++	/* MSC timer = 0xfff * 8ms = 32760 ms */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
++
++	/* U1/U2/L1 idle timer. 500 us */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
++
++	r8153b_power_cut_en(tp, false);
++	r8156_ups_en(tp, false);
++	r8153_queue_wake(tp, false);
++	rtl_runtime_suspend_enable(tp, false);
++
++	if (tp->udev->speed >= USB_SPEED_SUPER)
++		r8153b_u1u2en(tp, true);
++
++	usb_enable_lpm(tp->udev);
++
++	r8156_mac_clk_spd(tp, true);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
++	ocp_data &= ~PLA_MCU_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS);
++	if (rtl8152_get_speed(tp) & LINK_STATUS)
++		ocp_data |= CUR_LINK_OK;
++	else
++		ocp_data &= ~CUR_LINK_OK;
++	ocp_data |= POLL_LINK_CHG;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
++
++	set_bit(GREEN_ETHERNET, &tp->flags);
++
++	/* rx aggregation */
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
++	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
++	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_BMU_CONFIG);
++	ocp_data |= ACT_ODMA;
++	ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_CONFIG, ocp_data);
++
++	rtl_tally_reset(tp);
++
++	tp->coalesce = 15000;	/* 15 us */
++}
++
++static void r8156b_init(struct r8152 *tp)
++{
++	u32 ocp_data;
++	u16 data;
++	int i;
++
++	if (test_bit(RTL8152_UNPLUG, &tp->flags))
++		return;
++
++	ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_ECM_OP);
++	ocp_data &= ~EN_ALL_SPEED;
++	ocp_write_byte(tp, MCU_TYPE_USB, USB_ECM_OP, ocp_data);
++
++	ocp_write_word(tp, MCU_TYPE_USB, USB_SPEED_OPTION, 0);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_ECM_OPTION);
++	ocp_data |= BYPASS_MAC_RESET;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_ECM_OPTION, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL);
++	ocp_data |= RX_DETECT8;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data);
++
++	r8153b_u1u2en(tp, false);
++
++	switch (tp->version) {
++	case RTL_VER_13:
++	case RTL_VER_15:
++		r8156b_wait_loading_flash(tp);
++		break;
++	default:
++		break;
++	}
++
++	for (i = 0; i < 500; i++) {
++		if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++		    AUTOLOAD_DONE)
++			break;
++
++		msleep(20);
++		if (test_bit(RTL8152_UNPLUG, &tp->flags))
++			return;
++	}
++
++	data = r8153_phy_status(tp, 0);
++	if (data == PHY_STAT_EXT_INIT) {
++		data = ocp_reg_read(tp, 0xa468);
++		data &= ~(BIT(3) | BIT(1));
++		ocp_reg_write(tp, 0xa468, data);
++
++		data = ocp_reg_read(tp, 0xa466);
++		data &= ~BIT(0);
++		ocp_reg_write(tp, 0xa466, data);
++	}
++
++	data = r8152_mdio_read(tp, MII_BMCR);
++	if (data & BMCR_PDOWN) {
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++	}
++
++	data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
++
++	r8153_u2p3en(tp, false);
++
++	/* MSC timer = 0xfff * 8ms = 32760 ms */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
++
++	/* U1/U2/L1 idle timer. 500 us */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
++
++	r8153b_power_cut_en(tp, false);
++	r8156_ups_en(tp, false);
++	r8153_queue_wake(tp, false);
++	rtl_runtime_suspend_enable(tp, false);
++
++	if (tp->udev->speed >= USB_SPEED_SUPER)
++		r8153b_u1u2en(tp, true);
++
++	usb_enable_lpm(tp->udev);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_RCR);
++	ocp_data &= ~SLOT_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
++	ocp_data |= FLOW_CTRL_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
++
++	/* enable fc timer and set timer to 600 ms. */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FC_TIMER,
++		       CTRL_TIMER_EN | (600 / 8));
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_CTRL);
++	if (!(ocp_read_word(tp, MCU_TYPE_PLA, PLA_POL_GPIO_CTRL) & DACK_DET_EN))
++		ocp_data |= FLOW_CTRL_PATCH_2;
++	ocp_data &= ~AUTO_SPEEDUP;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_CTRL, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_TASK);
++	ocp_data |= FC_PATCH_TASK;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_TASK, ocp_data);
++
++	r8156_mac_clk_spd(tp, true);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3);
++	ocp_data &= ~PLA_MCU_SPDWN_EN;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, ocp_data);
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS);
++	if (rtl8152_get_speed(tp) & LINK_STATUS)
++		ocp_data |= CUR_LINK_OK;
++	else
++		ocp_data &= ~CUR_LINK_OK;
++	ocp_data |= POLL_LINK_CHG;
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_EXTRA_STATUS, ocp_data);
++
++	set_bit(GREEN_ETHERNET, &tp->flags);
++
++	/* rx aggregation */
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
++	ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN);
++	ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
++
++	rtl_tally_reset(tp);
++
++	tp->coalesce = 15000;	/* 15 us */
++}
++
+ static int rtl8152_pre_reset(struct usb_interface *intf)
+ {
+ 	struct r8152 *tp = usb_get_intfdata(intf);
+@@ -5992,6 +7924,22 @@ int rtl8152_get_link_ksettings(struct ne
+ 
+ 	mii_ethtool_get_link_ksettings(&tp->mii, cmd);
+ 
++	linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++			 cmd->link_modes.supported, tp->support_2500full);
++
++	if (tp->support_2500full) {
++		linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++				 cmd->link_modes.advertising,
++				 ocp_reg_read(tp, OCP_10GBT_CTRL) & MDIO_AN_10GBT_CTRL_ADV2_5G);
++
++		linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++				 cmd->link_modes.lp_advertising,
++				 ocp_reg_read(tp, OCP_10GBT_STAT) & MDIO_AN_10GBT_STAT_LP2_5G);
++
++		if (is_speed_2500(rtl8152_get_speed(tp)))
++			cmd->base.speed = SPEED_2500;
++	}
++
+ 	mutex_unlock(&tp->control);
+ 
+ 	usb_autopm_put_interface(tp->intf);
+@@ -6035,6 +7983,10 @@ static int rtl8152_set_link_ksettings(st
+ 		     cmd->link_modes.advertising))
+ 		advertising |= RTL_ADVERTISED_1000_FULL;
+ 
++	if (test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
++		     cmd->link_modes.advertising))
++		advertising |= RTL_ADVERTISED_2500_FULL;
++
+ 	mutex_lock(&tp->control);
+ 
+ 	ret = rtl8152_set_speed(tp, cmd->base.autoneg, cmd->base.speed,
+@@ -6624,6 +8576,67 @@ static int rtl_ops_init(struct r8152 *tp
+ 		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
+ 		break;
+ 
++	case RTL_VER_11:
++		tp->eee_en		= true;
++		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
++		fallthrough;
++	case RTL_VER_10:
++		ops->init		= r8156_init;
++		ops->enable		= rtl8156_enable;
++		ops->disable		= rtl8153_disable;
++		ops->up			= rtl8156_up;
++		ops->down		= rtl8156_down;
++		ops->unload		= rtl8153_unload;
++		ops->eee_get		= r8153_get_eee;
++		ops->eee_set		= r8152_set_eee;
++		ops->in_nway		= rtl8153_in_nway;
++		ops->hw_phy_cfg		= r8156_hw_phy_cfg;
++		ops->autosuspend_en	= rtl8156_runtime_enable;
++		ops->change_mtu		= rtl8156_change_mtu;
++		tp->rx_buf_sz		= 48 * 1024;
++		tp->support_2500full	= 1;
++		break;
++
++	case RTL_VER_12:
++	case RTL_VER_13:
++		tp->support_2500full	= 1;
++		fallthrough;
++	case RTL_VER_15:
++		tp->eee_en		= true;
++		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
++		ops->init		= r8156b_init;
++		ops->enable		= rtl8156b_enable;
++		ops->disable		= rtl8153_disable;
++		ops->up			= rtl8156_up;
++		ops->down		= rtl8156_down;
++		ops->unload		= rtl8153_unload;
++		ops->eee_get		= r8153_get_eee;
++		ops->eee_set		= r8152_set_eee;
++		ops->in_nway		= rtl8153_in_nway;
++		ops->hw_phy_cfg		= r8156b_hw_phy_cfg;
++		ops->autosuspend_en	= rtl8156_runtime_enable;
++		ops->change_mtu		= rtl8156_change_mtu;
++		tp->rx_buf_sz		= 48 * 1024;
++		break;
++
++	case RTL_VER_14:
++		ops->init		= r8153c_init;
++		ops->enable		= rtl8153_enable;
++		ops->disable		= rtl8153_disable;
++		ops->up			= rtl8153c_up;
++		ops->down		= rtl8153b_down;
++		ops->unload		= rtl8153_unload;
++		ops->eee_get		= r8153_get_eee;
++		ops->eee_set		= r8152_set_eee;
++		ops->in_nway		= rtl8153_in_nway;
++		ops->hw_phy_cfg		= r8153c_hw_phy_cfg;
++		ops->autosuspend_en	= rtl8153c_runtime_enable;
++		ops->change_mtu		= rtl8153c_change_mtu;
++		tp->rx_buf_sz		= 32 * 1024;
++		tp->eee_en		= true;
++		tp->eee_adv		= MDIO_EEE_1000T | MDIO_EEE_100TX;
++		break;
++
+ 	default:
+ 		ret = -ENODEV;
+ 		dev_err(&tp->intf->dev, "Unknown Device\n");
+@@ -6637,11 +8650,13 @@ static int rtl_ops_init(struct r8152 *tp
+ #define FIRMWARE_8153A_3	"rtl_nic/rtl8153a-3.fw"
+ #define FIRMWARE_8153A_4	"rtl_nic/rtl8153a-4.fw"
+ #define FIRMWARE_8153B_2	"rtl_nic/rtl8153b-2.fw"
++#define FIRMWARE_8153C_1	"rtl_nic/rtl8153c-1.fw"
+ 
+ MODULE_FIRMWARE(FIRMWARE_8153A_2);
+ MODULE_FIRMWARE(FIRMWARE_8153A_3);
+ MODULE_FIRMWARE(FIRMWARE_8153A_4);
+ MODULE_FIRMWARE(FIRMWARE_8153B_2);
++MODULE_FIRMWARE(FIRMWARE_8153C_1);
+ 
+ static int rtl_fw_init(struct r8152 *tp)
+ {
+@@ -6667,6 +8682,11 @@ static int rtl_fw_init(struct r8152 *tp)
+ 		rtl_fw->pre_fw		= r8153b_pre_firmware_1;
+ 		rtl_fw->post_fw		= r8153b_post_firmware_1;
+ 		break;
++	case RTL_VER_14:
++		rtl_fw->fw_name		= FIRMWARE_8153C_1;
++		rtl_fw->pre_fw		= r8153b_pre_firmware_1;
++		rtl_fw->post_fw		= r8153c_post_firmware_1;
++		break;
+ 	default:
+ 		break;
+ 	}
+@@ -6722,6 +8742,27 @@ u8 rtl8152_get_version(struct usb_interf
+ 	case 0x6010:
+ 		version = RTL_VER_09;
+ 		break;
++	case 0x7010:
++		version = RTL_TEST_01;
++		break;
++	case 0x7020:
++		version = RTL_VER_10;
++		break;
++	case 0x7030:
++		version = RTL_VER_11;
++		break;
++	case 0x7400:
++		version = RTL_VER_12;
++		break;
++	case 0x7410:
++		version = RTL_VER_13;
++		break;
++	case 0x6400:
++		version = RTL_VER_14;
++		break;
++	case 0x7420:
++		version = RTL_VER_15;
++		break;
+ 	default:
+ 		version = RTL_VER_UNKNOWN;
+ 		dev_info(&intf->dev, "Unknown version 0x%04x\n", ocp_data);
+@@ -6834,12 +8875,29 @@ static int rtl8152_probe(struct usb_inte
+ 	/* MTU range: 68 - 1500 or 9194 */
+ 	netdev->min_mtu = ETH_MIN_MTU;
+ 	switch (tp->version) {
++	case RTL_VER_03:
++	case RTL_VER_04:
++	case RTL_VER_05:
++	case RTL_VER_06:
++	case RTL_VER_08:
++	case RTL_VER_09:
++	case RTL_VER_14:
++		netdev->max_mtu = size_to_mtu(9 * 1024);
++		break;
++	case RTL_VER_10:
++	case RTL_VER_11:
++		netdev->max_mtu = size_to_mtu(15 * 1024);
++		break;
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		netdev->max_mtu = size_to_mtu(16 * 1024);
++		break;
+ 	case RTL_VER_01:
+ 	case RTL_VER_02:
+-		netdev->max_mtu = ETH_DATA_LEN;
+-		break;
++	case RTL_VER_07:
+ 	default:
+-		netdev->max_mtu = size_to_mtu(9 * 1024);
++		netdev->max_mtu = ETH_DATA_LEN;
+ 		break;
+ 	}
+ 
+@@ -6855,7 +8913,13 @@ static int rtl8152_probe(struct usb_inte
+ 	tp->advertising = RTL_ADVERTISED_10_HALF | RTL_ADVERTISED_10_FULL |
+ 			  RTL_ADVERTISED_100_HALF | RTL_ADVERTISED_100_FULL;
+ 	if (tp->mii.supports_gmii) {
+-		tp->speed = SPEED_1000;
++		if (tp->support_2500full &&
++		    tp->udev->speed >= USB_SPEED_SUPER) {
++			tp->speed = SPEED_2500;
++			tp->advertising |= RTL_ADVERTISED_2500_FULL;
++		} else {
++			tp->speed = SPEED_1000;
++		}
+ 		tp->advertising |= RTL_ADVERTISED_1000_FULL;
+ 	}
+ 	tp->duplex = DUPLEX_FULL;
+@@ -6879,7 +8943,11 @@ static int rtl8152_probe(struct usb_inte
+ 	set_ethernet_addr(tp);
+ 
+ 	usb_set_intfdata(intf, tp);
+-	netif_napi_add(netdev, &tp->napi, r8152_poll, RTL8152_NAPI_WEIGHT);
++
++	if (tp->support_2500full)
++		netif_napi_add(netdev, &tp->napi, r8152_poll, 256);
++	else
++		netif_napi_add(netdev, &tp->napi, r8152_poll, 64);
+ 
+ 	ret = register_netdev(netdev);
+ 	if (ret != 0) {
+@@ -6915,7 +8983,8 @@ static void rtl8152_disconnect(struct us
+ 		unregister_netdev(tp->netdev);
+ 		tasklet_kill(&tp->tx_tl);
+ 		cancel_delayed_work_sync(&tp->hw_phy_work);
+-		tp->rtl_ops.unload(tp);
++		if (tp->rtl_ops.unload)
++			tp->rtl_ops.unload(tp);
+ 		rtl8152_release_firmware(tp);
+ 		free_netdev(tp->netdev);
+ 	}
+@@ -6935,13 +9004,28 @@ static void rtl8152_disconnect(struct us
+ 	.idProduct = (prod), \
+ 	.bInterfaceClass = USB_CLASS_COMM, \
+ 	.bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
++	.bInterfaceProtocol = USB_CDC_PROTO_NONE \
++}, \
++{ \
++	.match_flags = USB_DEVICE_ID_MATCH_INT_INFO | \
++		       USB_DEVICE_ID_MATCH_DEVICE, \
++	.idVendor = (vend), \
++	.idProduct = (prod), \
++	.bInterfaceClass = USB_CLASS_COMM, \
++	.bInterfaceSubClass = USB_CDC_SUBCLASS_NCM, \
+ 	.bInterfaceProtocol = USB_CDC_PROTO_NONE
+ 
+ /* table of devices that work with this driver */
+ static const struct usb_device_id rtl8152_table[] = {
++	/* Realtek */
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8050)},
++	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8053)},
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8152)},
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8153)},
++	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8155)},
++	{REALTEK_USB_DEVICE(VENDOR_ID_REALTEK, 0x8156)},
++
++	/* Microsoft */
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07ab)},
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x07c6)},
+ 	{REALTEK_USB_DEVICE(VENDOR_ID_MICROSOFT, 0x0927)},
diff --git a/target/linux/bcm27xx/patches-5.10/950-0556-r8152-support-PHY-firmware-for-RTL8156-series.patch b/target/linux/bcm27xx/patches-5.10/950-0556-r8152-support-PHY-firmware-for-RTL8156-series.patch
new file mode 100644
index 0000000000..351f83e2e4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0556-r8152-support-PHY-firmware-for-RTL8156-series.patch
@@ -0,0 +1,691 @@
+From ca09589a72a0aa17389754fb75a5cd1a5d46818f Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:36 +0800
+Subject: [PATCH] r8152: support PHY firmware for RTL8156 series
+
+commit 4a51b0e8a0143b0e83d51d9c58c6416c3818a9f2 upstream.
+
+Support new firmware type and method for RTL8156 series.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 563 +++++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 561 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -974,8 +974,60 @@ enum rtl8152_fw_flags {
+ 	FW_FLAGS_START,
+ 	FW_FLAGS_STOP,
+ 	FW_FLAGS_NC,
++	FW_FLAGS_NC1,
++	FW_FLAGS_NC2,
++	FW_FLAGS_UC2,
++	FW_FLAGS_UC,
++	FW_FLAGS_SPEED_UP,
++	FW_FLAGS_VER,
+ };
+ 
++enum rtl8152_fw_fixup_cmd {
++	FW_FIXUP_AND = 0,
++	FW_FIXUP_OR,
++	FW_FIXUP_NOT,
++	FW_FIXUP_XOR,
++};
++
++struct fw_phy_set {
++	__le16 addr;
++	__le16 data;
++} __packed;
++
++struct fw_phy_speed_up {
++	struct fw_block blk_hdr;
++	__le16 fw_offset;
++	__le16 version;
++	__le16 fw_reg;
++	__le16 reserved;
++	char info[];
++} __packed;
++
++struct fw_phy_ver {
++	struct fw_block blk_hdr;
++	struct fw_phy_set ver;
++	__le32 reserved;
++} __packed;
++
++struct fw_phy_fixup {
++	struct fw_block blk_hdr;
++	struct fw_phy_set setting;
++	__le16 bit_cmd;
++	__le16 reserved;
++} __packed;
++
++struct fw_phy_union {
++	struct fw_block blk_hdr;
++	__le16 fw_offset;
++	__le16 fw_reg;
++	struct fw_phy_set pre_set[2];
++	struct fw_phy_set bp[8];
++	struct fw_phy_set bp_en;
++	u8 pre_num;
++	u8 bp_num;
++	char info[];
++} __packed;
++
+ /**
+  * struct fw_mac - a firmware block used by RTL_FW_PLA and RTL_FW_USB.
+  *	The layout of the firmware block is:
+@@ -1080,6 +1132,15 @@ enum rtl_fw_type {
+ 	RTL_FW_PHY_START,
+ 	RTL_FW_PHY_STOP,
+ 	RTL_FW_PHY_NC,
++	RTL_FW_PHY_FIXUP,
++	RTL_FW_PHY_UNION_NC,
++	RTL_FW_PHY_UNION_NC1,
++	RTL_FW_PHY_UNION_NC2,
++	RTL_FW_PHY_UNION_UC2,
++	RTL_FW_PHY_UNION_UC,
++	RTL_FW_PHY_UNION_MISC,
++	RTL_FW_PHY_SPEED_UP,
++	RTL_FW_PHY_VER,
+ };
+ 
+ enum rtl_version {
+@@ -3999,6 +4060,162 @@ static int rtl_post_ram_code(struct r815
+ 	return 0;
+ }
+ 
++static bool rtl8152_is_fw_phy_speed_up_ok(struct r8152 *tp, struct fw_phy_speed_up *phy)
++{
++	u16 fw_offset;
++	u32 length;
++	bool rc = false;
++
++	switch (tp->version) {
++	case RTL_VER_01:
++	case RTL_VER_02:
++	case RTL_VER_03:
++	case RTL_VER_04:
++	case RTL_VER_05:
++	case RTL_VER_06:
++	case RTL_VER_07:
++	case RTL_VER_08:
++	case RTL_VER_09:
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_14:
++		goto out;
++	case RTL_VER_13:
++	case RTL_VER_15:
++	default:
++		break;
++	}
++
++	fw_offset = __le16_to_cpu(phy->fw_offset);
++	length = __le32_to_cpu(phy->blk_hdr.length);
++	if (fw_offset < sizeof(*phy) || length <= fw_offset) {
++		dev_err(&tp->intf->dev, "invalid fw_offset\n");
++		goto out;
++	}
++
++	length -= fw_offset;
++	if (length & 3) {
++		dev_err(&tp->intf->dev, "invalid block length\n");
++		goto out;
++	}
++
++	if (__le16_to_cpu(phy->fw_reg) != 0x9A00) {
++		dev_err(&tp->intf->dev, "invalid register to load firmware\n");
++		goto out;
++	}
++
++	rc = true;
++out:
++	return rc;
++}
++
++static bool rtl8152_is_fw_phy_ver_ok(struct r8152 *tp, struct fw_phy_ver *ver)
++{
++	bool rc = false;
++
++	switch (tp->version) {
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		break;
++	default:
++		goto out;
++	}
++
++	if (__le32_to_cpu(ver->blk_hdr.length) != sizeof(*ver)) {
++		dev_err(&tp->intf->dev, "invalid block length\n");
++		goto out;
++	}
++
++	if (__le16_to_cpu(ver->ver.addr) != SRAM_GPHY_FW_VER) {
++		dev_err(&tp->intf->dev, "invalid phy ver addr\n");
++		goto out;
++	}
++
++	rc = true;
++out:
++	return rc;
++}
++
++static bool rtl8152_is_fw_phy_fixup_ok(struct r8152 *tp, struct fw_phy_fixup *fix)
++{
++	bool rc = false;
++
++	switch (tp->version) {
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		break;
++	default:
++		goto out;
++	}
++
++	if (__le32_to_cpu(fix->blk_hdr.length) != sizeof(*fix)) {
++		dev_err(&tp->intf->dev, "invalid block length\n");
++		goto out;
++	}
++
++	if (__le16_to_cpu(fix->setting.addr) != OCP_PHY_PATCH_CMD ||
++	    __le16_to_cpu(fix->setting.data) != BIT(7)) {
++		dev_err(&tp->intf->dev, "invalid phy fixup\n");
++		goto out;
++	}
++
++	rc = true;
++out:
++	return rc;
++}
++
++static bool rtl8152_is_fw_phy_union_ok(struct r8152 *tp, struct fw_phy_union *phy)
++{
++	u16 fw_offset;
++	u32 length;
++	bool rc = false;
++
++	switch (tp->version) {
++	case RTL_VER_10:
++	case RTL_VER_11:
++	case RTL_VER_12:
++	case RTL_VER_13:
++	case RTL_VER_15:
++		break;
++	default:
++		goto out;
++	}
++
++	fw_offset = __le16_to_cpu(phy->fw_offset);
++	length = __le32_to_cpu(phy->blk_hdr.length);
++	if (fw_offset < sizeof(*phy) || length <= fw_offset) {
++		dev_err(&tp->intf->dev, "invalid fw_offset\n");
++		goto out;
++	}
++
++	length -= fw_offset;
++	if (length & 1) {
++		dev_err(&tp->intf->dev, "invalid block length\n");
++		goto out;
++	}
++
++	if (phy->pre_num > 2) {
++		dev_err(&tp->intf->dev, "invalid pre_num %d\n", phy->pre_num);
++		goto out;
++	}
++
++	if (phy->bp_num > 8) {
++		dev_err(&tp->intf->dev, "invalid bp_num %d\n", phy->bp_num);
++		goto out;
++	}
++
++	rc = true;
++out:
++	return rc;
++}
++
+ static bool rtl8152_is_fw_phy_nc_ok(struct r8152 *tp, struct fw_phy_nc *phy)
+ {
+ 	u32 length;
+@@ -4319,6 +4536,10 @@ static long rtl8152_check_firmware(struc
+ 		case RTL_FW_PHY_START:
+ 			if (test_bit(FW_FLAGS_START, &fw_flags) ||
+ 			    test_bit(FW_FLAGS_NC, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC1, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
+ 			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
+ 				dev_err(&tp->intf->dev,
+ 					"check PHY_START fail\n");
+@@ -4367,7 +4588,153 @@ static long rtl8152_check_firmware(struc
+ 				goto fail;
+ 			}
+ 			__set_bit(FW_FLAGS_NC, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_NC:
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC1, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "PHY_UNION_NC out of order\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_NC, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY_UNION_NC encountered\n");
++				goto fail;
++			}
+ 
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check PHY_UNION_NC failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_NC, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_NC1:
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "PHY_UNION_NC1 out of order\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_NC1, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY NC1 encountered\n");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check PHY_UNION_NC1 failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_NC1, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_NC2:
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "PHY_UNION_NC2 out of order\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_NC2, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY NC2 encountered\n");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check PHY_UNION_NC2 failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_NC2, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_UC2:
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "PHY_UNION_UC2 out of order\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_UC2, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY UC2 encountered\n");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check PHY_UNION_UC2 failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_UC2, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_UC:
++			if (!test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "PHY_UNION_UC out of order\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_UC, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY UC encountered\n");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check PHY_UNION_UC failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_UC, &fw_flags);
++			break;
++		case RTL_FW_PHY_UNION_MISC:
++			if (!rtl8152_is_fw_phy_union_ok(tp, (struct fw_phy_union *)block)) {
++				dev_err(&tp->intf->dev, "check RTL_FW_PHY_UNION_MISC failed\n");
++				goto fail;
++			}
++			break;
++		case RTL_FW_PHY_FIXUP:
++			if (!rtl8152_is_fw_phy_fixup_ok(tp, (struct fw_phy_fixup *)block)) {
++				dev_err(&tp->intf->dev, "check PHY fixup failed\n");
++				goto fail;
++			}
++			break;
++		case RTL_FW_PHY_SPEED_UP:
++			if (test_bit(FW_FLAGS_SPEED_UP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY firmware encountered");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_speed_up_ok(tp, (struct fw_phy_speed_up *)block)) {
++				dev_err(&tp->intf->dev, "check PHY speed up failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_SPEED_UP, &fw_flags);
++			break;
++		case RTL_FW_PHY_VER:
++			if (test_bit(FW_FLAGS_START, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC1, &fw_flags) ||
++			    test_bit(FW_FLAGS_NC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC2, &fw_flags) ||
++			    test_bit(FW_FLAGS_UC, &fw_flags) ||
++			    test_bit(FW_FLAGS_STOP, &fw_flags)) {
++				dev_err(&tp->intf->dev, "Invalid order to set PHY version\n");
++				goto fail;
++			}
++
++			if (test_bit(FW_FLAGS_VER, &fw_flags)) {
++				dev_err(&tp->intf->dev, "multiple PHY version encountered");
++				goto fail;
++			}
++
++			if (!rtl8152_is_fw_phy_ver_ok(tp, (struct fw_phy_ver *)block)) {
++				dev_err(&tp->intf->dev, "check PHY version failed\n");
++				goto fail;
++			}
++			__set_bit(FW_FLAGS_VER, &fw_flags);
+ 			break;
+ 		default:
+ 			dev_warn(&tp->intf->dev, "Unknown type %u is found\n",
+@@ -4390,6 +4757,143 @@ fail:
+ 	return ret;
+ }
+ 
++static void rtl_ram_code_speed_up(struct r8152 *tp, struct fw_phy_speed_up *phy, bool wait)
++{
++	u32 len;
++	u8 *data;
++
++	if (sram_read(tp, SRAM_GPHY_FW_VER) >= __le16_to_cpu(phy->version)) {
++		dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n");
++		return;
++	}
++
++	len = __le32_to_cpu(phy->blk_hdr.length);
++	len -= __le16_to_cpu(phy->fw_offset);
++	data = (u8 *)phy + __le16_to_cpu(phy->fw_offset);
++
++	if (rtl_phy_patch_request(tp, true, wait))
++		return;
++
++	while (len) {
++		u32 ocp_data, size;
++		int i;
++
++		if (len < 2048)
++			size = len;
++		else
++			size = 2048;
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL);
++		ocp_data |= GPHY_PATCH_DONE | BACKUP_RESTRORE;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL, ocp_data);
++
++		generic_ocp_write(tp, __le16_to_cpu(phy->fw_reg), 0xff, size, data, MCU_TYPE_USB);
++
++		data += size;
++		len -= size;
++
++		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_POL_GPIO_CTRL);
++		ocp_data |= POL_GPHY_PATCH;
++		ocp_write_word(tp, MCU_TYPE_PLA, PLA_POL_GPIO_CTRL, ocp_data);
++
++		for (i = 0; i < 1000; i++) {
++			if (!(ocp_read_word(tp, MCU_TYPE_PLA, PLA_POL_GPIO_CTRL) & POL_GPHY_PATCH))
++				break;
++		}
++
++		if (i == 1000) {
++			dev_err(&tp->intf->dev, "ram code speedup mode timeout\n");
++			return;
++		}
++	}
++
++	ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base);
++	rtl_phy_patch_request(tp, false, wait);
++
++	if (sram_read(tp, SRAM_GPHY_FW_VER) == __le16_to_cpu(phy->version))
++		dev_dbg(&tp->intf->dev, "successfully applied %s\n", phy->info);
++	else
++		dev_err(&tp->intf->dev, "ram code speedup mode fail\n");
++}
++
++static int rtl8152_fw_phy_ver(struct r8152 *tp, struct fw_phy_ver *phy_ver)
++{
++	u16 ver_addr, ver;
++
++	ver_addr = __le16_to_cpu(phy_ver->ver.addr);
++	ver = __le16_to_cpu(phy_ver->ver.data);
++
++	if (sram_read(tp, ver_addr) >= ver) {
++		dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n");
++		return 0;
++	}
++
++	sram_write(tp, ver_addr, ver);
++
++	dev_dbg(&tp->intf->dev, "PHY firmware version %x\n", ver);
++
++	return ver;
++}
++
++static void rtl8152_fw_phy_fixup(struct r8152 *tp, struct fw_phy_fixup *fix)
++{
++	u16 addr, data;
++
++	addr = __le16_to_cpu(fix->setting.addr);
++	data = ocp_reg_read(tp, addr);
++
++	switch (__le16_to_cpu(fix->bit_cmd)) {
++	case FW_FIXUP_AND:
++		data &= __le16_to_cpu(fix->setting.data);
++		break;
++	case FW_FIXUP_OR:
++		data |= __le16_to_cpu(fix->setting.data);
++		break;
++	case FW_FIXUP_NOT:
++		data &= ~__le16_to_cpu(fix->setting.data);
++		break;
++	case FW_FIXUP_XOR:
++		data ^= __le16_to_cpu(fix->setting.data);
++		break;
++	default:
++		return;
++	}
++
++	ocp_reg_write(tp, addr, data);
++
++	dev_dbg(&tp->intf->dev, "applied ocp %x %x\n", addr, data);
++}
++
++static void rtl8152_fw_phy_union_apply(struct r8152 *tp, struct fw_phy_union *phy)
++{
++	__le16 *data;
++	u32 length;
++	int i, num;
++
++	num = phy->pre_num;
++	for (i = 0; i < num; i++)
++		sram_write(tp, __le16_to_cpu(phy->pre_set[i].addr),
++			   __le16_to_cpu(phy->pre_set[i].data));
++
++	length = __le32_to_cpu(phy->blk_hdr.length);
++	length -= __le16_to_cpu(phy->fw_offset);
++	num = length / 2;
++	data = (__le16 *)((u8 *)phy + __le16_to_cpu(phy->fw_offset));
++
++	ocp_reg_write(tp, OCP_SRAM_ADDR, __le16_to_cpu(phy->fw_reg));
++	for (i = 0; i < num; i++)
++		ocp_reg_write(tp, OCP_SRAM_DATA, __le16_to_cpu(data[i]));
++
++	num = phy->bp_num;
++	for (i = 0; i < num; i++)
++		sram_write(tp, __le16_to_cpu(phy->bp[i].addr), __le16_to_cpu(phy->bp[i].data));
++
++	if (phy->bp_num && phy->bp_en.addr)
++		sram_write(tp, __le16_to_cpu(phy->bp_en.addr), __le16_to_cpu(phy->bp_en.data));
++
++	dev_dbg(&tp->intf->dev, "successfully applied %s\n", phy->info);
++}
++
+ static void rtl8152_fw_phy_nc_apply(struct r8152 *tp, struct fw_phy_nc *phy)
+ {
+ 	u16 mode_reg, bp_index;
+@@ -4443,6 +4947,12 @@ static void rtl8152_fw_mac_apply(struct
+ 		return;
+ 	}
+ 
++	fw_ver_reg = __le16_to_cpu(mac->fw_ver_reg);
++	if (fw_ver_reg && ocp_read_byte(tp, MCU_TYPE_USB, fw_ver_reg) >= mac->fw_ver_data) {
++		dev_dbg(&tp->intf->dev, "%s firmware has been the newest\n", type ? "PLA" : "USB");
++		return;
++	}
++
+ 	rtl_clear_bp(tp, type);
+ 
+ 	/* Enable backup/restore of MACDBG. This is required after clearing PLA
+@@ -4478,7 +4988,6 @@ static void rtl8152_fw_mac_apply(struct
+ 		ocp_write_word(tp, type, bp_en_addr,
+ 			       __le16_to_cpu(mac->bp_en_value));
+ 
+-	fw_ver_reg = __le16_to_cpu(mac->fw_ver_reg);
+ 	if (fw_ver_reg)
+ 		ocp_write_byte(tp, MCU_TYPE_USB, fw_ver_reg,
+ 			       mac->fw_ver_data);
+@@ -4493,7 +5002,7 @@ static void rtl8152_apply_firmware(struc
+ 	struct fw_header *fw_hdr;
+ 	struct fw_phy_patch_key *key;
+ 	u16 key_addr = 0;
+-	int i;
++	int i, patch_phy = 1;
+ 
+ 	if (IS_ERR_OR_NULL(rtl_fw->fw))
+ 		return;
+@@ -4515,17 +5024,40 @@ static void rtl8152_apply_firmware(struc
+ 			rtl8152_fw_mac_apply(tp, (struct fw_mac *)block);
+ 			break;
+ 		case RTL_FW_PHY_START:
++			if (!patch_phy)
++				break;
+ 			key = (struct fw_phy_patch_key *)block;
+ 			key_addr = __le16_to_cpu(key->key_reg);
+ 			rtl_pre_ram_code(tp, key_addr, __le16_to_cpu(key->key_data), !power_cut);
+ 			break;
+ 		case RTL_FW_PHY_STOP:
++			if (!patch_phy)
++				break;
+ 			WARN_ON(!key_addr);
+ 			rtl_post_ram_code(tp, key_addr, !power_cut);
+ 			break;
+ 		case RTL_FW_PHY_NC:
+ 			rtl8152_fw_phy_nc_apply(tp, (struct fw_phy_nc *)block);
+ 			break;
++		case RTL_FW_PHY_VER:
++			patch_phy = rtl8152_fw_phy_ver(tp, (struct fw_phy_ver *)block);
++			break;
++		case RTL_FW_PHY_UNION_NC:
++		case RTL_FW_PHY_UNION_NC1:
++		case RTL_FW_PHY_UNION_NC2:
++		case RTL_FW_PHY_UNION_UC2:
++		case RTL_FW_PHY_UNION_UC:
++		case RTL_FW_PHY_UNION_MISC:
++			if (patch_phy)
++				rtl8152_fw_phy_union_apply(tp, (struct fw_phy_union *)block);
++			break;
++		case RTL_FW_PHY_FIXUP:
++			if (patch_phy)
++				rtl8152_fw_phy_fixup(tp, (struct fw_phy_fixup *)block);
++			break;
++		case RTL_FW_PHY_SPEED_UP:
++			rtl_ram_code_speed_up(tp, (struct fw_phy_speed_up *)block, !power_cut);
++			break;
+ 		default:
+ 			break;
+ 		}
+@@ -5033,6 +5565,21 @@ static int r8153c_post_firmware_1(struct
+ 	return 0;
+ }
+ 
++static int r8156a_post_firmware_1(struct r8152 *tp)
++{
++	u32 ocp_data;
++
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_FW_FIX_EN1);
++	ocp_data |= FW_IP_RESET_EN;
++	ocp_write_word(tp, MCU_TYPE_USB, USB_FW_FIX_EN1, ocp_data);
++
++	/* Modify U3PHY parameter for compatibility issue */
++	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPHY3_MDCMDIO, 0x4026840e);
++	ocp_write_dword(tp, MCU_TYPE_USB, USB_UPHY3_MDCMDIO, 0x4001acc9);
++
++	return 0;
++}
++
+ static void r8153_aldps_en(struct r8152 *tp, bool enable)
+ {
+ 	u16 data;
+@@ -8651,12 +9198,16 @@ static int rtl_ops_init(struct r8152 *tp
+ #define FIRMWARE_8153A_4	"rtl_nic/rtl8153a-4.fw"
+ #define FIRMWARE_8153B_2	"rtl_nic/rtl8153b-2.fw"
+ #define FIRMWARE_8153C_1	"rtl_nic/rtl8153c-1.fw"
++#define FIRMWARE_8156A_2	"rtl_nic/rtl8156a-2.fw"
++#define FIRMWARE_8156B_2	"rtl_nic/rtl8156b-2.fw"
+ 
+ MODULE_FIRMWARE(FIRMWARE_8153A_2);
+ MODULE_FIRMWARE(FIRMWARE_8153A_3);
+ MODULE_FIRMWARE(FIRMWARE_8153A_4);
+ MODULE_FIRMWARE(FIRMWARE_8153B_2);
+ MODULE_FIRMWARE(FIRMWARE_8153C_1);
++MODULE_FIRMWARE(FIRMWARE_8156A_2);
++MODULE_FIRMWARE(FIRMWARE_8156B_2);
+ 
+ static int rtl_fw_init(struct r8152 *tp)
+ {
+@@ -8682,6 +9233,14 @@ static int rtl_fw_init(struct r8152 *tp)
+ 		rtl_fw->pre_fw		= r8153b_pre_firmware_1;
+ 		rtl_fw->post_fw		= r8153b_post_firmware_1;
+ 		break;
++	case RTL_VER_11:
++		rtl_fw->fw_name		= FIRMWARE_8156A_2;
++		rtl_fw->post_fw		= r8156a_post_firmware_1;
++		break;
++	case RTL_VER_13:
++	case RTL_VER_15:
++		rtl_fw->fw_name		= FIRMWARE_8156B_2;
++		break;
+ 	case RTL_VER_14:
+ 		rtl_fw->fw_name		= FIRMWARE_8153C_1;
+ 		rtl_fw->pre_fw		= r8153b_pre_firmware_1;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch
new file mode 100644
index 0000000000..f5abb5d3c9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch
@@ -0,0 +1,79 @@
+From 579f58dd2819910354753bc5489fc1588fe9cfe2 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:37 +0800
+Subject: [PATCH] r8152: search the configuration of vendor mode
+
+commit c2198943e33b100ed21dfb636c8fa6baef841e9d upstream.
+
+The vendor mode is not always at config #1, so it is necessary to
+set the correct configuration number.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 39 +++++++++++++++++++++++++++++++++++----
+ 1 file changed, 35 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -29,7 +29,7 @@
+ #include <linux/usb/r8152.h>
+ 
+ /* Information for net-next */
+-#define NETNEXT_VERSION		"11"
++#define NETNEXT_VERSION		"12"
+ 
+ /* Information for net */
+ #define NET_VERSION		"11"
+@@ -8108,6 +8108,39 @@ static void r8156b_init(struct r8152 *tp
+ 	tp->coalesce = 15000;	/* 15 us */
+ }
+ 
++static bool rtl_vendor_mode(struct usb_interface *intf)
++{
++	struct usb_host_interface *alt = intf->cur_altsetting;
++	struct usb_device *udev;
++	struct usb_host_config *c;
++	int i, num_configs;
++
++	if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC)
++		return true;
++
++	/* The vendor mode is not always config #1, so to find it out. */
++	udev = interface_to_usbdev(intf);
++	c = udev->config;
++	num_configs = udev->descriptor.bNumConfigurations;
++	for (i = 0; i < num_configs; (i++, c++)) {
++		struct usb_interface_descriptor	*desc = NULL;
++
++		if (c->desc.bNumInterfaces > 0)
++			desc = &c->intf_cache[0]->altsetting->desc;
++		else
++			continue;
++
++		if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
++			usb_driver_set_configuration(udev, c->desc.bConfigurationValue);
++			break;
++		}
++	}
++
++	WARN_ON_ONCE(i == num_configs);
++
++	return false;
++}
++
+ static int rtl8152_pre_reset(struct usb_interface *intf)
+ {
+ 	struct r8152 *tp = usb_get_intfdata(intf);
+@@ -9346,10 +9379,8 @@ static int rtl8152_probe(struct usb_inte
+ 	if (version == RTL_VER_UNKNOWN)
+ 		return -ENODEV;
+ 
+-	if (udev->actconfig->desc.bConfigurationValue != 1) {
+-		usb_driver_set_configuration(udev, 1);
++	if (!rtl_vendor_mode(intf))
+ 		return -ENODEV;
+-	}
+ 
+ 	if (intf->cur_altsetting->desc.bNumEndpoints < 3)
+ 		return -ENODEV;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0558-rpivid-Only-clk_request_done-once.patch b/target/linux/bcm27xx/patches-5.10/950-0558-rpivid-Only-clk_request_done-once.patch
new file mode 100644
index 0000000000..7cf8c2b27d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0558-rpivid-Only-clk_request_done-once.patch
@@ -0,0 +1,26 @@
+From 14bbd93c7d40b947bef6f6b0a203db1c5b263591 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Tue, 20 Apr 2021 13:34:18 +0100
+Subject: [PATCH] rpivid: Only clk_request_done once
+
+Fixes: 25486f49bfe2e3ae13b90478d1eebd91413136ad
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/staging/media/rpivid/rpivid_video.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -526,7 +526,11 @@ static void rpivid_stop_streaming(struct
+ 
+ 	rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
+ 
+-	clk_request_done(dev->hevc_req);
++	if (dev->hevc_req)
++	{
++		clk_request_done(dev->hevc_req);
++		dev->hevc_req = NULL;
++	}
+ 	clk_disable_unprepare(dev->clock);
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0559-dwc_otg-fix-an-undeclared-variable.patch b/target/linux/bcm27xx/patches-5.10/950-0559-dwc_otg-fix-an-undeclared-variable.patch
new file mode 100644
index 0000000000..198c2279ec
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0559-dwc_otg-fix-an-undeclared-variable.patch
@@ -0,0 +1,24 @@
+From e6845a88a3367be3c95aab00329eeedcd3eebec0 Mon Sep 17 00:00:00 2001
+From: wangzx <593074943@qq.com>
+Date: Tue, 20 Apr 2021 22:33:26 +0800
+Subject: [PATCH] dwc_otg: fix an undeclared variable Replace an
+ undeclared variable used by DWC_DEBUGPL with the real endpoint address.
+ DWC_DEBUGPL does nothing with DEBUG undefined so it did not go wrong before.
+ Signed-off-by: Zixuan Wang <wangzixuan@sjtu.edu.cn>
+
+---
+ drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
+@@ -1026,7 +1026,8 @@ static void endpoint_reset(struct usb_hc
+ 	dwc_irqflags_t flags;
+ 	dwc_otg_hcd_t *dwc_otg_hcd = hcd_to_dwc_otg_hcd(hcd);
+ 
+-	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP RESET: Endpoint Num=0x%02d\n", epnum);
++	DWC_DEBUGPL(DBG_HCD, "DWC OTG HCD EP RESET: Endpoint Num=0x%02d\n",
++		    ep->desc.bEndpointAddress);
+ 
+ 	DWC_SPINLOCK_IRQSAVE(dwc_otg_hcd->lock, &flags);
+ 	if (ep->hcpriv) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0560-drm-vc4-drv-Remove-the-DSI-pointer-in-vc4_drv.patch b/target/linux/bcm27xx/patches-5.10/950-0560-drm-vc4-drv-Remove-the-DSI-pointer-in-vc4_drv.patch
new file mode 100644
index 0000000000..29286bc654
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0560-drm-vc4-drv-Remove-the-DSI-pointer-in-vc4_drv.patch
@@ -0,0 +1,66 @@
+From f9211d36925dac42f910d7d2e4c370e414fd24d2 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 3 Dec 2020 14:25:36 +0100
+Subject: [PATCH] drm/vc4: drv: Remove the DSI pointer in vc4_drv
+
+Commit 51f4fcd9c4ea867c3b4fe58111f342ad0e80642a upstream.
+
+That pointer isn't used anywhere, so there's no point in keeping it.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-2-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_drv.h | 1 -
+ drivers/gpu/drm/vc4/vc4_dsi.c | 9 ---------
+ 2 files changed, 10 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -81,7 +81,6 @@ struct vc4_dev {
+ 	struct vc4_hvs *hvs;
+ 	struct vc4_v3d *v3d;
+ 	struct vc4_dpi *dpi;
+-	struct vc4_dsi *dsi1;
+ 	struct vc4_vec *vec;
+ 	struct vc4_txp *txp;
+ 	struct vc4_fkms *fkms;
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -1451,7 +1451,6 @@ static int vc4_dsi_bind(struct device *d
+ {
+ 	struct platform_device *pdev = to_platform_device(dev);
+ 	struct drm_device *drm = dev_get_drvdata(master);
+-	struct vc4_dev *vc4 = to_vc4_dev(drm);
+ 	struct vc4_dsi *dsi = dev_get_drvdata(dev);
+ 	struct vc4_dsi_encoder *vc4_dsi_encoder;
+ 	struct drm_panel *panel;
+@@ -1604,9 +1603,6 @@ static int vc4_dsi_bind(struct device *d
+ 	if (ret)
+ 		return ret;
+ 
+-	if (dsi->port == 1)
+-		vc4->dsi1 = dsi;
+-
+ 	drm_simple_encoder_init(drm, dsi->encoder, DRM_MODE_ENCODER_DSI);
+ 	drm_encoder_helper_add(dsi->encoder, &vc4_dsi_encoder_helper_funcs);
+ 
+@@ -1635,8 +1631,6 @@ static int vc4_dsi_bind(struct device *d
+ static void vc4_dsi_unbind(struct device *dev, struct device *master,
+ 			   void *data)
+ {
+-	struct drm_device *drm = dev_get_drvdata(master);
+-	struct vc4_dev *vc4 = to_vc4_dev(drm);
+ 	struct vc4_dsi *dsi = dev_get_drvdata(dev);
+ 
+ 	if (dsi->bridge)
+@@ -1648,9 +1642,6 @@ static void vc4_dsi_unbind(struct device
+ 	 */
+ 	list_splice_init(&dsi->bridge_chain, &dsi->encoder->bridge_chain);
+ 	drm_encoder_cleanup(dsi->encoder);
+-
+-	if (dsi->port == 1)
+-		vc4->dsi1 = NULL;
+ }
+ 
+ static const struct component_ops vc4_dsi_ops = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0561-drm-vc4-dsi-Use-snprintf-for-the-PHY-clocks-instead-.patch b/target/linux/bcm27xx/patches-5.10/950-0561-drm-vc4-dsi-Use-snprintf-for-the-PHY-clocks-instead-.patch
new file mode 100644
index 0000000000..b1b0fb5e4e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0561-drm-vc4-dsi-Use-snprintf-for-the-PHY-clocks-instead-.patch
@@ -0,0 +1,66 @@
+From 7fe646b726b66c16f731e36e95d7eda9f182ba4d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 3 Dec 2020 14:25:38 +0100
+Subject: [PATCH] drm/vc4: dsi: Use snprintf for the PHY clocks instead
+ of an array
+
+Commit dc0bf36401e891c853e0a25baeb4e0b4e6f3626d upstream.
+
+The DSI clocks setup function has been using an array to store the clock
+name of either the DSI0 or DSI1 blocks, using the port ID to choose the
+proper one.
+
+Let's switch to an snprintf call to do the same thing and simplify the
+array a bit.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-4-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 17 +++++++++--------
+ 1 file changed, 9 insertions(+), 8 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -1390,12 +1390,12 @@ vc4_dsi_init_phy_clocks(struct vc4_dsi *
+ 	struct device *dev = &dsi->pdev->dev;
+ 	const char *parent_name = __clk_get_name(dsi->pll_phy_clock);
+ 	static const struct {
+-		const char *dsi0_name, *dsi1_name;
++		const char *name;
+ 		int div;
+ 	} phy_clocks[] = {
+-		{ "dsi0_byte", "dsi1_byte", 8 },
+-		{ "dsi0_ddr2", "dsi1_ddr2", 4 },
+-		{ "dsi0_ddr", "dsi1_ddr", 2 },
++		{ "byte", 8 },
++		{ "ddr2", 4 },
++		{ "ddr", 2 },
+ 	};
+ 	int i;
+ 
+@@ -1411,8 +1411,12 @@ vc4_dsi_init_phy_clocks(struct vc4_dsi *
+ 	for (i = 0; i < ARRAY_SIZE(phy_clocks); i++) {
+ 		struct clk_fixed_factor *fix = &dsi->phy_clocks[i];
+ 		struct clk_init_data init;
++		char clk_name[16];
+ 		int ret;
+ 
++		snprintf(clk_name, sizeof(clk_name),
++			 "dsi%u_%s", dsi->port, phy_clocks[i].name);
++
+ 		/* We just use core fixed factor clock ops for the PHY
+ 		 * clocks.  The clocks are actually gated by the
+ 		 * PHY_AFEC0_DDRCLK_EN bits, which we should be
+@@ -1429,10 +1433,7 @@ vc4_dsi_init_phy_clocks(struct vc4_dsi *
+ 		memset(&init, 0, sizeof(init));
+ 		init.parent_names = &parent_name;
+ 		init.num_parents = 1;
+-		if (dsi->port == 1)
+-			init.name = phy_clocks[i].dsi1_name;
+-		else
+-			init.name = phy_clocks[i].dsi0_name;
++		init.name = clk_name;
+ 		init.ops = &clk_fixed_factor_ops;
+ 
+ 		ret = devm_clk_hw_register(dev, &fix->hw);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0562-drm-vc4-dsi-Introduce-a-variant-structure.patch b/target/linux/bcm27xx/patches-5.10/950-0562-drm-vc4-dsi-Introduce-a-variant-structure.patch
new file mode 100644
index 0000000000..c24bb4417e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0562-drm-vc4-dsi-Introduce-a-variant-structure.patch
@@ -0,0 +1,191 @@
+From 4dd1101f3e16e6202132ae34a8da2a7d78043d56 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 3 Dec 2020 14:25:39 +0100
+Subject: [PATCH] drm/vc4: dsi: Introduce a variant structure
+
+Commit d1d195ce26a14ec0a87816c09ae514e1c40e97f7 upstream.
+
+Most of the differences between DSI0 and DSI1 are handled through the
+ID. However, the BCM2711 DSI is going to introduce one more variable to
+the mix and will break some expectations of the earlier, simpler, test.
+
+Let's add a variant structure that will address most of the differences
+between those three controllers.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-5-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 63 ++++++++++++++++++++---------------
+ 1 file changed, 37 insertions(+), 26 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -493,6 +493,18 @@
+  */
+ #define DSI1_ID			0x8c
+ 
++struct vc4_dsi_variant {
++	/* Whether we're on bcm2835's DSI0 or DSI1. */
++	unsigned int port;
++
++	bool broken_axi_workaround;
++
++	const char *debugfs_name;
++	const struct debugfs_reg32 *regs;
++	size_t nregs;
++
++};
++
+ /* General DSI hardware state. */
+ struct vc4_dsi {
+ 	struct platform_device *pdev;
+@@ -509,8 +521,7 @@ struct vc4_dsi {
+ 	u32 *reg_dma_mem;
+ 	dma_addr_t reg_paddr;
+ 
+-	/* Whether we're on bcm2835's DSI0 or DSI1. */
+-	int port;
++	const struct vc4_dsi_variant *variant;
+ 
+ 	/* DSI channel for the panel we're connected to. */
+ 	u32 channel;
+@@ -586,10 +597,10 @@ dsi_dma_workaround_write(struct vc4_dsi
+ #define DSI_READ(offset) readl(dsi->regs + (offset))
+ #define DSI_WRITE(offset, val) dsi_dma_workaround_write(dsi, offset, val)
+ #define DSI_PORT_READ(offset) \
+-	DSI_READ(dsi->port ? DSI1_##offset : DSI0_##offset)
++	DSI_READ(dsi->variant->port ? DSI1_##offset : DSI0_##offset)
+ #define DSI_PORT_WRITE(offset, val) \
+-	DSI_WRITE(dsi->port ? DSI1_##offset : DSI0_##offset, val)
+-#define DSI_PORT_BIT(bit) (dsi->port ? DSI1_##bit : DSI0_##bit)
++	DSI_WRITE(dsi->variant->port ? DSI1_##offset : DSI0_##offset, val)
++#define DSI_PORT_BIT(bit) (dsi->variant->port ? DSI1_##bit : DSI0_##bit)
+ 
+ /* VC4 DSI encoder KMS struct */
+ struct vc4_dsi_encoder {
+@@ -837,7 +848,7 @@ static void vc4_dsi_encoder_enable(struc
+ 
+ 	ret = pm_runtime_get_sync(dev);
+ 	if (ret) {
+-		DRM_ERROR("Failed to runtime PM enable on DSI%d\n", dsi->port);
++		DRM_ERROR("Failed to runtime PM enable on DSI%d\n", dsi->variant->port);
+ 		return;
+ 	}
+ 
+@@ -871,7 +882,7 @@ static void vc4_dsi_encoder_enable(struc
+ 	DSI_PORT_WRITE(STAT, DSI_PORT_READ(STAT));
+ 
+ 	/* Set AFE CTR00/CTR1 to release powerdown of analog. */
+-	if (dsi->port == 0) {
++	if (dsi->variant->port == 0) {
+ 		u32 afec0 = (VC4_SET_FIELD(7, DSI_PHY_AFEC0_PTATADJ) |
+ 			     VC4_SET_FIELD(7, DSI_PHY_AFEC0_CTATADJ));
+ 
+@@ -1017,7 +1028,7 @@ static void vc4_dsi_encoder_enable(struc
+ 		       DSI_PORT_BIT(PHYC_CLANE_ENABLE) |
+ 		       ((dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) ?
+ 			0 : DSI_PORT_BIT(PHYC_HS_CLK_CONTINUOUS)) |
+-		       (dsi->port == 0 ?
++		       (dsi->variant->port == 0 ?
+ 			VC4_SET_FIELD(lpx - 1, DSI0_PHYC_ESC_CLK_LPDT) :
+ 			VC4_SET_FIELD(lpx - 1, DSI1_PHYC_ESC_CLK_LPDT)));
+ 
+@@ -1043,13 +1054,13 @@ static void vc4_dsi_encoder_enable(struc
+ 		       DSI_DISP1_ENABLE);
+ 
+ 	/* Ungate the block. */
+-	if (dsi->port == 0)
++	if (dsi->variant->port == 0)
+ 		DSI_PORT_WRITE(CTRL, DSI_PORT_READ(CTRL) | DSI0_CTRL_CTRL0);
+ 	else
+ 		DSI_PORT_WRITE(CTRL, DSI_PORT_READ(CTRL) | DSI1_CTRL_EN);
+ 
+ 	/* Bring AFE out of reset. */
+-	if (dsi->port == 0) {
++	if (dsi->variant->port == 0) {
+ 	} else {
+ 		DSI_PORT_WRITE(PHY_AFEC0,
+ 			       DSI_PORT_READ(PHY_AFEC0) &
+@@ -1305,8 +1316,16 @@ static const struct drm_encoder_helper_f
+ 	.mode_fixup = vc4_dsi_encoder_mode_fixup,
+ };
+ 
++static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
++	.port			= 1,
++	.broken_axi_workaround	= true,
++	.debugfs_name		= "dsi1_regs",
++	.regs			= dsi1_regs,
++	.nregs			= ARRAY_SIZE(dsi1_regs),
++};
++
+ static const struct of_device_id vc4_dsi_dt_match[] = {
+-	{ .compatible = "brcm,bcm2835-dsi1", (void *)(uintptr_t)1 },
++	{ .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
+ 	{}
+ };
+ 
+@@ -1317,7 +1336,7 @@ static void dsi_handle_error(struct vc4_
+ 	if (!(stat & bit))
+ 		return;
+ 
+-	DRM_ERROR("DSI%d: %s error\n", dsi->port, type);
++	DRM_ERROR("DSI%d: %s error\n", dsi->variant->port, type);
+ 	*ret = IRQ_HANDLED;
+ }
+ 
+@@ -1415,7 +1434,7 @@ vc4_dsi_init_phy_clocks(struct vc4_dsi *
+ 		int ret;
+ 
+ 		snprintf(clk_name, sizeof(clk_name),
+-			 "dsi%u_%s", dsi->port, phy_clocks[i].name);
++			 "dsi%u_%s", dsi->variant->port, phy_clocks[i].name);
+ 
+ 		/* We just use core fixed factor clock ops for the PHY
+ 		 * clocks.  The clocks are actually gated by the
+@@ -1463,7 +1482,7 @@ static int vc4_dsi_bind(struct device *d
+ 	if (!match)
+ 		return -ENODEV;
+ 
+-	dsi->port = (uintptr_t)match->data;
++	dsi->variant = match->data;
+ 
+ 	vc4_dsi_encoder = devm_kzalloc(dev, sizeof(*vc4_dsi_encoder),
+ 				       GFP_KERNEL);
+@@ -1480,13 +1499,8 @@ static int vc4_dsi_bind(struct device *d
+ 		return PTR_ERR(dsi->regs);
+ 
+ 	dsi->regset.base = dsi->regs;
+-	if (dsi->port == 0) {
+-		dsi->regset.regs = dsi0_regs;
+-		dsi->regset.nregs = ARRAY_SIZE(dsi0_regs);
+-	} else {
+-		dsi->regset.regs = dsi1_regs;
+-		dsi->regset.nregs = ARRAY_SIZE(dsi1_regs);
+-	}
++	dsi->regset.regs = dsi->variant->regs;
++	dsi->regset.nregs = dsi->variant->nregs;
+ 
+ 	if (DSI_PORT_READ(ID) != DSI_ID_VALUE) {
+ 		dev_err(dev, "Port returned 0x%08x for ID instead of 0x%08x\n",
+@@ -1498,7 +1512,7 @@ static int vc4_dsi_bind(struct device *d
+ 	 * from the ARM.  It does handle writes from the DMA engine,
+ 	 * so set up a channel for talking to it.
+ 	 */
+-	if (dsi->port == 1) {
++	if (dsi->variant->broken_axi_workaround) {
+ 		dsi->reg_dma_mem = dma_alloc_coherent(dev, 4,
+ 						      &dsi->reg_dma_paddr,
+ 						      GFP_KERNEL);
+@@ -1619,10 +1633,7 @@ static int vc4_dsi_bind(struct device *d
+ 	 */
+ 	list_splice_init(&dsi->encoder->bridge_chain, &dsi->bridge_chain);
+ 
+-	if (dsi->port == 0)
+-		vc4_debugfs_add_regset32(drm, "dsi0_regs", &dsi->regset);
+-	else
+-		vc4_debugfs_add_regset32(drm, "dsi1_regs", &dsi->regset);
++	vc4_debugfs_add_regset32(drm, dsi->variant->debugfs_name, &dsi->regset);
+ 
+ 	pm_runtime_enable(dev);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0563-drm-vc4-dsi-Add-support-for-DSI0.patch b/target/linux/bcm27xx/patches-5.10/950-0563-drm-vc4-dsi-Add-support-for-DSI0.patch
new file mode 100644
index 0000000000..57b37de100
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0563-drm-vc4-dsi-Add-support-for-DSI0.patch
@@ -0,0 +1,44 @@
+From 7302f0d6f939247c1c658b79aba0866c92560ff7 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 3 Dec 2020 14:25:40 +0100
+Subject: [PATCH] drm/vc4: dsi: Add support for DSI0
+
+Commit 4b265fe11fad4234b12d92dd8091f9aa0c878eea upstream.
+
+DSI0 was partially supported, but didn't register with the main
+driver, and the code was inconsistent as to whether it checked
+port == 0 or port == 1.
+
+Add compatible string and other support to make it consistent.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-6-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -1316,6 +1316,13 @@ static const struct drm_encoder_helper_f
+ 	.mode_fixup = vc4_dsi_encoder_mode_fixup,
+ };
+ 
++static const struct vc4_dsi_variant bcm2835_dsi0_variant = {
++	.port			= 0,
++	.debugfs_name		= "dsi0_regs",
++	.regs			= dsi0_regs,
++	.nregs			= ARRAY_SIZE(dsi0_regs),
++};
++
+ static const struct vc4_dsi_variant bcm2835_dsi1_variant = {
+ 	.port			= 1,
+ 	.broken_axi_workaround	= true,
+@@ -1325,6 +1332,7 @@ static const struct vc4_dsi_variant bcm2
+ };
+ 
+ static const struct of_device_id vc4_dsi_dt_match[] = {
++	{ .compatible = "brcm,bcm2835-dsi0", &bcm2835_dsi0_variant },
+ 	{ .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
+ 	{}
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0564-drm-vc4-dsi-Add-configuration-for-BCM2711-DSI1.patch b/target/linux/bcm27xx/patches-5.10/950-0564-drm-vc4-dsi-Add-configuration-for-BCM2711-DSI1.patch
new file mode 100644
index 0000000000..14749219b0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0564-drm-vc4-dsi-Add-configuration-for-BCM2711-DSI1.patch
@@ -0,0 +1,53 @@
+From 24b8230e039c6bef2dcc0ea4ca7cb5d2441570f1 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 3 Dec 2020 14:25:42 +0100
+Subject: [PATCH] drm/vc4: dsi: Add configuration for BCM2711 DSI1
+
+Commit d0666be8ef9e8e65d4b7fabc1606ec51f61384c0 upstream.
+
+BCM2711 DSI1 doesn't have the issue with the ARM not being
+able to write to the registers, therefore remove the DMA
+workaround for that compatible string.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203132543.861591-8-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -1316,6 +1316,13 @@ static const struct drm_encoder_helper_f
+ 	.mode_fixup = vc4_dsi_encoder_mode_fixup,
+ };
+ 
++static const struct vc4_dsi_variant bcm2711_dsi1_variant = {
++	.port			= 1,
++	.debugfs_name		= "dsi1_regs",
++	.regs			= dsi1_regs,
++	.nregs			= ARRAY_SIZE(dsi1_regs),
++};
++
+ static const struct vc4_dsi_variant bcm2835_dsi0_variant = {
+ 	.port			= 0,
+ 	.debugfs_name		= "dsi0_regs",
+@@ -1332,6 +1339,7 @@ static const struct vc4_dsi_variant bcm2
+ };
+ 
+ static const struct of_device_id vc4_dsi_dt_match[] = {
++	{ .compatible = "brcm,bcm2711-dsi1", &bcm2711_dsi1_variant },
+ 	{ .compatible = "brcm,bcm2835-dsi0", &bcm2835_dsi0_variant },
+ 	{ .compatible = "brcm,bcm2835-dsi1", &bcm2835_dsi1_variant },
+ 	{}
+@@ -1516,8 +1524,8 @@ static int vc4_dsi_bind(struct device *d
+ 		return -ENODEV;
+ 	}
+ 
+-	/* DSI1 has a broken AXI slave that doesn't respond to writes
+-	 * from the ARM.  It does handle writes from the DMA engine,
++	/* DSI1 on BCM2835/6/7 has a broken AXI slave that doesn't respond to
++	 * writes from the ARM.  It does handle writes from the DMA engine,
+ 	 * so set up a channel for talking to it.
+ 	 */
+ 	if (dsi->variant->broken_axi_workaround) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0565-drm-vc4-Correct-pixel-order-for-DSI0.patch b/target/linux/bcm27xx/patches-5.10/950-0565-drm-vc4-Correct-pixel-order-for-DSI0.patch
new file mode 100644
index 0000000000..a94405150a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0565-drm-vc4-Correct-pixel-order-for-DSI0.patch
@@ -0,0 +1,27 @@
+From 59938610a705283fef63447c7e777781358610e2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 11 Feb 2021 18:37:04 +0000
+Subject: [PATCH] drm/vc4: Correct pixel order for DSI0
+
+For slightly unknown reasons, dsi0 takes a different pixel format
+to dsi1, and that has to be set in the pixel valve.
+
+Amend the setup accordingly.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -319,7 +319,8 @@ static void vc4_crtc_config_pv(struct dr
+ 	u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1;
+ 	bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 ||
+ 		       vc4_encoder->type == VC4_ENCODER_TYPE_DSI1);
+-	u32 format = is_dsi ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24;
++	bool is_dsi1 = vc4_encoder->type == VC4_ENCODER_TYPE_DSI1;
++	u32 format = is_dsi1 ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24;
+ 	u8 ppc = pv_data->pixels_per_clock;
+ 	bool debug_dump_regs = false;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0566-drm-vc4-Register-dsi0-as-the-correct-vc4-encoder-typ.patch b/target/linux/bcm27xx/patches-5.10/950-0566-drm-vc4-Register-dsi0-as-the-correct-vc4-encoder-typ.patch
new file mode 100644
index 0000000000..30bf65e3f2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0566-drm-vc4-Register-dsi0-as-the-correct-vc4-encoder-typ.patch
@@ -0,0 +1,29 @@
+From b627cebfc64dd944b9571203e30456efbc0101c3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 8 Feb 2021 11:22:01 +0000
+Subject: [PATCH] drm/vc4: Register dsi0 as the correct vc4 encoder
+ type
+
+vc4_dsi was registering both dsi0 and dsi1 as VC4_ENCODER_TYPE_DSI1
+which seemed to work OK for a single DSI display, but fails
+if there are two DSI displays connected.
+
+Update to register the correct type.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -1506,7 +1506,8 @@ static int vc4_dsi_bind(struct device *d
+ 		return -ENOMEM;
+ 
+ 	INIT_LIST_HEAD(&dsi->bridge_chain);
+-	vc4_dsi_encoder->base.type = VC4_ENCODER_TYPE_DSI1;
++	vc4_dsi_encoder->base.type = dsi->variant->port ?
++			VC4_ENCODER_TYPE_DSI1 : VC4_ENCODER_TYPE_DSI0;
+ 	vc4_dsi_encoder->dsi = dsi;
+ 	dsi->encoder = &vc4_dsi_encoder->base.base;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0567-drm-vc4-Fix-dsi0-interrupt-support.patch b/target/linux/bcm27xx/patches-5.10/950-0567-drm-vc4-Fix-dsi0-interrupt-support.patch
new file mode 100644
index 0000000000..e9a08d2901
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0567-drm-vc4-Fix-dsi0-interrupt-support.patch
@@ -0,0 +1,188 @@
+From 1ad48331b7697e4fbc9f4bd376fc2db342045cb6 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 10 Feb 2021 18:46:22 +0000
+Subject: [PATCH] drm/vc4: Fix dsi0 interrupt support.
+
+DSI0 seemingly had very little or no testing as a load of
+the register mappings were incorrect/missing, so host
+transfers always timed out due to enabling/checking incorrect
+bits in the interrupt enable and status registers.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 111 ++++++++++++++++++++++++++--------
+ 1 file changed, 85 insertions(+), 26 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -181,8 +181,50 @@
+ 
+ #define DSI0_TXPKT_PIX_FIFO		0x20 /* AKA PIX_FIFO */
+ 
+-#define DSI0_INT_STAT		0x24
+-#define DSI0_INT_EN		0x28
++#define DSI0_INT_STAT			0x24
++#define DSI0_INT_EN			0x28
++# define DSI0_INT_FIFO_ERR		BIT(25)
++# define DSI0_INT_CMDC_DONE_MASK	VC4_MASK(24, 23)
++# define DSI0_INT_CMDC_DONE_SHIFT	23
++#  define DSI0_INT_CMDC_DONE_NO_REPEAT		1
++#  define DSI0_INT_CMDC_DONE_REPEAT		3
++# define DSI0_INT_PHY_DIR_RTF		BIT(22)
++# define DSI0_INT_PHY_D1_ULPS		BIT(21)
++# define DSI0_INT_PHY_D1_STOP		BIT(20)
++# define DSI0_INT_PHY_RXLPDT		BIT(19)
++# define DSI0_INT_PHY_RXTRIG		BIT(18)
++# define DSI0_INT_PHY_D0_ULPS		BIT(17)
++# define DSI0_INT_PHY_D0_LPDT		BIT(16)
++# define DSI0_INT_PHY_D0_FTR		BIT(15)
++# define DSI0_INT_PHY_D0_STOP		BIT(14)
++/* Signaled when the clock lane enters the given state. */
++# define DSI0_INT_PHY_CLK_ULPS		BIT(13)
++# define DSI0_INT_PHY_CLK_HS		BIT(12)
++# define DSI0_INT_PHY_CLK_FTR		BIT(11)
++/* Signaled on timeouts */
++# define DSI0_INT_PR_TO			BIT(10)
++# define DSI0_INT_TA_TO			BIT(9)
++# define DSI0_INT_LPRX_TO		BIT(8)
++# define DSI0_INT_HSTX_TO		BIT(7)
++/* Contention on a line when trying to drive the line low */
++# define DSI0_INT_ERR_CONT_LP1		BIT(6)
++# define DSI0_INT_ERR_CONT_LP0		BIT(5)
++/* Control error: incorrect line state sequence on data lane 0. */
++# define DSI0_INT_ERR_CONTROL		BIT(4)
++# define DSI0_INT_ERR_SYNC_ESC		BIT(3)
++# define DSI0_INT_RX2_PKT		BIT(2)
++# define DSI0_INT_RX1_PKT		BIT(1)
++# define DSI0_INT_CMD_PKT		BIT(0)
++
++#define DSI0_INTERRUPTS_ALWAYS_ENABLED	(DSI0_INT_ERR_SYNC_ESC | \
++					 DSI0_INT_ERR_CONTROL |	 \
++					 DSI0_INT_ERR_CONT_LP0 | \
++					 DSI0_INT_ERR_CONT_LP1 | \
++					 DSI0_INT_HSTX_TO |	 \
++					 DSI0_INT_LPRX_TO |	 \
++					 DSI0_INT_TA_TO |	 \
++					 DSI0_INT_PR_TO)
++
+ # define DSI1_INT_PHY_D3_ULPS		BIT(30)
+ # define DSI1_INT_PHY_D3_STOP		BIT(29)
+ # define DSI1_INT_PHY_D2_ULPS		BIT(28)
+@@ -894,6 +936,9 @@ static void vc4_dsi_encoder_enable(struc
+ 
+ 		DSI_PORT_WRITE(PHY_AFEC0, afec0);
+ 
++		/* AFEC reset hold time */
++		mdelay(1);
++
+ 		DSI_PORT_WRITE(PHY_AFEC1,
+ 			       VC4_SET_FIELD(6,  DSI0_PHY_AFEC1_IDR_DLANE1) |
+ 			       VC4_SET_FIELD(6,  DSI0_PHY_AFEC1_IDR_DLANE0) |
+@@ -1060,12 +1105,9 @@ static void vc4_dsi_encoder_enable(struc
+ 		DSI_PORT_WRITE(CTRL, DSI_PORT_READ(CTRL) | DSI1_CTRL_EN);
+ 
+ 	/* Bring AFE out of reset. */
+-	if (dsi->variant->port == 0) {
+-	} else {
+-		DSI_PORT_WRITE(PHY_AFEC0,
+-			       DSI_PORT_READ(PHY_AFEC0) &
+-			       ~DSI1_PHY_AFEC0_RESET);
+-	}
++	DSI_PORT_WRITE(PHY_AFEC0,
++		       DSI_PORT_READ(PHY_AFEC0) &
++		       ~DSI_PORT_BIT(PHY_AFEC0_RESET));
+ 
+ 	vc4_dsi_ulps(dsi, false);
+ 
+@@ -1184,13 +1226,28 @@ static ssize_t vc4_dsi_host_transfer(str
+ 	/* Enable the appropriate interrupt for the transfer completion. */
+ 	dsi->xfer_result = 0;
+ 	reinit_completion(&dsi->xfer_completion);
+-	DSI_PORT_WRITE(INT_STAT, DSI1_INT_TXPKT1_DONE | DSI1_INT_PHY_DIR_RTF);
+-	if (msg->rx_len) {
+-		DSI_PORT_WRITE(INT_EN, (DSI1_INTERRUPTS_ALWAYS_ENABLED |
+-					DSI1_INT_PHY_DIR_RTF));
++	if (dsi->variant->port == 0) {
++		DSI_PORT_WRITE(INT_STAT,
++			       DSI0_INT_CMDC_DONE_MASK | DSI1_INT_PHY_DIR_RTF);
++		if (msg->rx_len) {
++			DSI_PORT_WRITE(INT_EN, (DSI0_INTERRUPTS_ALWAYS_ENABLED |
++						DSI0_INT_PHY_DIR_RTF));
++		} else {
++			DSI_PORT_WRITE(INT_EN,
++				       (DSI0_INTERRUPTS_ALWAYS_ENABLED |
++					VC4_SET_FIELD(DSI0_INT_CMDC_DONE_NO_REPEAT,
++						      DSI0_INT_CMDC_DONE)));
++		}
+ 	} else {
+-		DSI_PORT_WRITE(INT_EN, (DSI1_INTERRUPTS_ALWAYS_ENABLED |
+-					DSI1_INT_TXPKT1_DONE));
++		DSI_PORT_WRITE(INT_STAT,
++			       DSI1_INT_TXPKT1_DONE | DSI1_INT_PHY_DIR_RTF);
++		if (msg->rx_len) {
++			DSI_PORT_WRITE(INT_EN, (DSI1_INTERRUPTS_ALWAYS_ENABLED |
++						DSI1_INT_PHY_DIR_RTF));
++		} else {
++			DSI_PORT_WRITE(INT_EN, (DSI1_INTERRUPTS_ALWAYS_ENABLED |
++						DSI1_INT_TXPKT1_DONE));
++		}
+ 	}
+ 
+ 	/* Send the packet. */
+@@ -1207,7 +1264,7 @@ static ssize_t vc4_dsi_host_transfer(str
+ 		ret = dsi->xfer_result;
+ 	}
+ 
+-	DSI_PORT_WRITE(INT_EN, DSI1_INTERRUPTS_ALWAYS_ENABLED);
++	DSI_PORT_WRITE(INT_EN, DSI_PORT_BIT(INTERRUPTS_ALWAYS_ENABLED));
+ 
+ 	if (ret)
+ 		goto reset_fifo_and_return;
+@@ -1253,7 +1310,7 @@ reset_fifo_and_return:
+ 		       DSI_PORT_BIT(CTRL_RESET_FIFOS));
+ 
+ 	DSI_PORT_WRITE(TXPKT1C, 0);
+-	DSI_PORT_WRITE(INT_EN, DSI1_INTERRUPTS_ALWAYS_ENABLED);
++	DSI_PORT_WRITE(INT_EN, DSI_PORT_BIT(INTERRUPTS_ALWAYS_ENABLED));
+ 	return ret;
+ }
+ 
+@@ -1386,26 +1443,28 @@ static irqreturn_t vc4_dsi_irq_handler(i
+ 	DSI_PORT_WRITE(INT_STAT, stat);
+ 
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_ERR_SYNC_ESC, "LPDT sync");
++			 DSI_PORT_BIT(INT_ERR_SYNC_ESC), "LPDT sync");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_ERR_CONTROL, "data lane 0 sequence");
++			 DSI_PORT_BIT(INT_ERR_CONTROL), "data lane 0 sequence");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_ERR_CONT_LP0, "LP0 contention");
++			 DSI_PORT_BIT(INT_ERR_CONT_LP0), "LP0 contention");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_ERR_CONT_LP1, "LP1 contention");
++			 DSI_PORT_BIT(INT_ERR_CONT_LP1), "LP1 contention");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_HSTX_TO, "HSTX timeout");
++			 DSI_PORT_BIT(INT_HSTX_TO), "HSTX timeout");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_LPRX_TO, "LPRX timeout");
++			 DSI_PORT_BIT(INT_LPRX_TO), "LPRX timeout");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_TA_TO, "turnaround timeout");
++			 DSI_PORT_BIT(INT_TA_TO), "turnaround timeout");
+ 	dsi_handle_error(dsi, &ret, stat,
+-			 DSI1_INT_PR_TO, "peripheral reset timeout");
++			 DSI_PORT_BIT(INT_PR_TO), "peripheral reset timeout");
+ 
+-	if (stat & (DSI1_INT_TXPKT1_DONE | DSI1_INT_PHY_DIR_RTF)) {
++	if (stat & ((dsi->variant->port ? DSI1_INT_TXPKT1_DONE :
++					  DSI0_INT_CMDC_DONE_MASK) |
++		    DSI_PORT_BIT(INT_PHY_DIR_RTF))) {
+ 		complete(&dsi->xfer_completion);
+ 		ret = IRQ_HANDLED;
+-	} else if (stat & DSI1_INT_HSTX_TO) {
++	} else if (stat & DSI_PORT_BIT(INT_HSTX_TO)) {
+ 		complete(&dsi->xfer_completion);
+ 		dsi->xfer_result = -ETIMEDOUT;
+ 		ret = IRQ_HANDLED;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0568-drm-vc4-Add-correct-stop-condition-to-vc4_dsi_encode.patch b/target/linux/bcm27xx/patches-5.10/950-0568-drm-vc4-Add-correct-stop-condition-to-vc4_dsi_encode.patch
new file mode 100644
index 0000000000..c6786890ba
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0568-drm-vc4-Add-correct-stop-condition-to-vc4_dsi_encode.patch
@@ -0,0 +1,30 @@
+From 709279f0925b7e17f64684a8cab44e1cb72ae56e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 15 Apr 2021 16:18:16 +0100
+Subject: [PATCH] drm/vc4: Add correct stop condition to
+ vc4_dsi_encoder_disable iteration
+
+vc4_dsi_encoder_disable is partially an open coded version of
+drm_bridge_chain_disable, but it missed a termination condition
+in the loop for ->disable which meant that no post_disable
+calls were made.
+
+Add in the termination clause.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_dsi.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_dsi.c
++++ b/drivers/gpu/drm/vc4/vc4_dsi.c
+@@ -803,6 +803,9 @@ static void vc4_dsi_encoder_disable(stru
+ 	list_for_each_entry_reverse(iter, &dsi->bridge_chain, chain_node) {
+ 		if (iter->funcs->disable)
+ 			iter->funcs->disable(iter);
++
++		if (iter == dsi->bridge)
++			break;
+ 	}
+ 
+ 	vc4_dsi_ulps(dsi, true);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch b/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch
new file mode 100644
index 0000000000..f11c70c7ae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0569-drm-atomic-Don-t-fixup-modes-that-haven-t-been-reset.patch
@@ -0,0 +1,24 @@
+From 4b060ef559d6d6cd229484a60b56e15993f3053c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 7 Jan 2021 16:30:55 +0000
+Subject: [PATCH] drm/atomic: Don't fixup modes that haven't been reset
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/drm_atomic_helper.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -430,6 +430,11 @@ mode_fixup(struct drm_atomic_state *stat
+ 		new_crtc_state =
+ 			drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
+ 
++		if (!new_crtc_state->mode_changed &&
++		    !new_crtc_state->connectors_changed) {
++			continue;
++		}
++
+ 		/*
+ 		 * Each encoder has at most one connector (since we always steal
+ 		 * it away), so we won't call ->mode_fixup twice.
diff --git a/target/linux/bcm27xx/patches-5.10/950-0570-drm-panel-jdi-lt070me05000-Use-gpiod_set_value_cansl.patch b/target/linux/bcm27xx/patches-5.10/950-0570-drm-panel-jdi-lt070me05000-Use-gpiod_set_value_cansl.patch
new file mode 100644
index 0000000000..91bce3e07b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0570-drm-panel-jdi-lt070me05000-Use-gpiod_set_value_cansl.patch
@@ -0,0 +1,67 @@
+From ec29b05b2da1d82d03730e0ac317efd3a7e97759 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 15 Apr 2021 17:30:35 +0100
+Subject: [PATCH] drm/panel: jdi-lt070me05000: Use
+ gpiod_set_value_cansleep
+
+There is no reason why the control GPIOs for the panel can not
+be connected to I2C or similar GPIO interfaces that may need to
+sleep, therefore switch from gpiod_set_value to
+gpiod_set_value_cansleep calls to configure them.
+Without that you get complaints from gpiolib every time the state
+is changed.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+--- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
++++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c
+@@ -205,11 +205,11 @@ static int jdi_panel_unprepare(struct dr
+ 	if (ret < 0)
+ 		dev_err(dev, "regulator disable failed, %d\n", ret);
+ 
+-	gpiod_set_value(jdi->enable_gpio, 0);
++	gpiod_set_value_cansleep(jdi->enable_gpio, 0);
+ 
+-	gpiod_set_value(jdi->reset_gpio, 1);
++	gpiod_set_value_cansleep(jdi->reset_gpio, 1);
+ 
+-	gpiod_set_value(jdi->dcdc_en_gpio, 0);
++	gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
+ 
+ 	jdi->prepared = false;
+ 
+@@ -233,13 +233,13 @@ static int jdi_panel_prepare(struct drm_
+ 
+ 	msleep(20);
+ 
+-	gpiod_set_value(jdi->dcdc_en_gpio, 1);
++	gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 1);
+ 	usleep_range(10, 20);
+ 
+-	gpiod_set_value(jdi->reset_gpio, 0);
++	gpiod_set_value_cansleep(jdi->reset_gpio, 0);
+ 	usleep_range(10, 20);
+ 
+-	gpiod_set_value(jdi->enable_gpio, 1);
++	gpiod_set_value_cansleep(jdi->enable_gpio, 1);
+ 	usleep_range(10, 20);
+ 
+ 	ret = jdi_panel_init(jdi);
+@@ -263,11 +263,11 @@ poweroff:
+ 	if (ret < 0)
+ 		dev_err(dev, "regulator disable failed, %d\n", ret);
+ 
+-	gpiod_set_value(jdi->enable_gpio, 0);
++	gpiod_set_value_cansleep(jdi->enable_gpio, 0);
+ 
+-	gpiod_set_value(jdi->reset_gpio, 1);
++	gpiod_set_value_cansleep(jdi->reset_gpio, 1);
+ 
+-	gpiod_set_value(jdi->dcdc_en_gpio, 0);
++	gpiod_set_value_cansleep(jdi->dcdc_en_gpio, 0);
+ 
+ 	return ret;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0571-dtoverlays-Add-overlays-for-JDI-LT070ME05000-1200x19.patch b/target/linux/bcm27xx/patches-5.10/950-0571-dtoverlays-Add-overlays-for-JDI-LT070ME05000-1200x19.patch
new file mode 100644
index 0000000000..33a4f39ee0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0571-dtoverlays-Add-overlays-for-JDI-LT070ME05000-1200x19.patch
@@ -0,0 +1,216 @@
+From 5752746d0694ee607c2971735f2befc8a86fbab9 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 15 Apr 2021 16:46:34 +0100
+Subject: [PATCH] dtoverlays: Add overlays for JDI LT070ME05000
+ 1200x1920 DSI panel
+
+Credit to forum member gizmomouse on
+https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=253912 and
+Andrey Vostrukhin of Harlab for these overlays.
+
+See https://github.com/harlab/CM4_LCD_LT070ME05000 for
+schematics and docs for the adapter board to connect this panel which
+is found in the Asus/Google 2013 Nexus 7" tablet and therefore
+relatively easily available.
+
+Note that this uses 4 DSI data lanes, and therefore MUST be used
+with DISP1 on a Compute Module. It can not be used on a standard
+Pi.
+
+There are two versions of the adapter board. V1 connects the
+display controls to Pi GPIOs, whilst v2 uses an I2C GPIO expander
+so needs no additional connections beyond the FFC and power.
+
+The touchscreen overlay for these panels varies, so that part
+is not configured.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  2 +
+ arch/arm/boot/dts/overlays/README             | 21 ++++++
+ .../vc4-kms-dsi-lt070me05000-overlay.dts      | 69 +++++++++++++++++++
+ .../vc4-kms-dsi-lt070me05000-v2-overlay.dts   | 64 +++++++++++++++++
+ 4 files changed, 156 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-lt070me05000-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dsi-lt070me05000-v2-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -213,6 +213,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	upstream-pi4.dtbo \
+ 	vc4-fkms-v3d.dtbo \
+ 	vc4-kms-dsi-7inch.dtbo \
++	vc4-kms-dsi-lt070me05000.dtbo \
++	vc4-kms-dsi-lt070me05000-v2.dtbo \
+ 	vc4-kms-kippah-7inch.dtbo \
+ 	vc4-kms-v3d.dtbo \
+ 	vc4-kms-v3d-pi4.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3158,6 +3158,27 @@ Load:   dtoverlay=vc4-kms-dsi-7inch
+ Params: <None>
+ 
+ 
++Name:   vc4-kms-dsi-lt070me05000
++Info:   Enable a JDI LT070ME05000 DSI display on DSI1.
++        Note that this is a 4 lane DSI device, so it will only work on a Compute
++        Module.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-dsi-lt070me05000,<param>
++Params: reset                   GPIO for the reset signal (default 17)
++        enable                  GPIO for the enable signal (default 4)
++        dcdc-en                 GPIO for the DC-DC converter enable (default 5)
++
++
++Name:   vc4-kms-dsi-lt070me05000-v2
++Info:   Enable a JDI LT070ME05000 DSI display on DSI1 using Harlab's V2
++        interface board.
++        Note that this is a 4 lane DSI device, so it will only work on a Compute
++        Module.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-dsi-lt070me05000-v2
++Params: <None>
++
++
+ Name:   vc4-kms-kippah-7inch
+ Info:   Enable the Adafruit DPI Kippah with the 7" Ontat panel attached.
+         Requires vc4-kms-v3d to be loaded.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-lt070me05000-overlay.dts
+@@ -0,0 +1,69 @@
++/*
++ * Device Tree overlay to connect a JDI LT070ME05000 DSI panel to DSI1.
++ * This uses 4 DSI data lanes, so can only be used with a Compute Module.
++ *
++ * Credit to forum user gizmomouse on
++ * https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=253912 and
++ * Andrey Vostrukhin of Harlab for the overlay.
++ *
++ * Refer to https://github.com/harlab/CM4_LCD_LT070ME05000 for schematics and
++ * other documentation.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&dsi1>;
++		__overlay__{
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			port {
++				dsi_out_port:endpoint {
++					remote-endpoint = <&panel_dsi_port>;
++				};
++			};
++
++			lt070me05000:lt070me05000@0 {
++				compatible    = "jdi,lt070me05000";
++				status        = "okay";
++				reg           = <0>;
++				reset-gpios   = <&gpio 17 1>;   // LCD RST
++				enable-gpios  = <&gpio 4 0>;    // LCD Enable
++				dcdc-en-gpios = <&gpio 5 0>;    // LCD DC-DC Enable
++				port {
++					panel_dsi_port: endpoint {
++						remote-endpoint = <&dsi_out_port>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&gpio>;
++		__overlay__ {
++			lt070me05000_pins: lt070me05000_pins {
++				brcm,pins = <4 5 17>;
++				brcm,function = <1 1 1>; // out
++				brcm,pull = <0 0 0>; // off
++			};
++		};
++
++	};
++
++	__overrides__ {
++		reset = <&lt070me05000_pins>,"brcm,pins:8",
++			<&lt070me05000>,"reset-gpios:4";
++
++		enable = <&lt070me05000_pins>,"brcm,pins:0",
++			<&lt070me05000>,"enable-gpios:4";
++
++		dcdc-en = <&lt070me05000_pins>,"brcm,pins:4",
++			<&lt070me05000>,"dcdc-en-gpios:4";
++	};
++};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-lt070me05000-v2-overlay.dts
+@@ -0,0 +1,64 @@
++/*
++ * Device Tree overlay to connect a JDI LT070ME05000 DSI panel to DSI1.
++ * This uses 4 DSI data lanes, so can only be used with a Compute Module.
++ *
++ * The overlay is for V2 of Harlab's interface board that uses a PCA9536 to
++ * handle the panel's control GPIOs instead of wiring it back to Pi GPIOs.
++ *
++ * Credit to Andrey Vostrukhin of Harlab for the overlay.
++ *
++ * Refer to https://github.com/harlab/CM4_LCD_LT070ME05000 for schematics and
++ * other documentation.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			pca: pca@41 {
++				compatible = "nxp,pca9536";
++				reg = <0x41>;
++				gpio-controller;
++				#gpio-cells = <2>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&dsi1>;
++		__overlay__{
++			status = "okay";
++			#address-cells = <1>;
++			#size-cells = <0>;
++			port {
++				dsi_out_port:endpoint {
++					remote-endpoint = <&panel_dsi_port>;
++				};
++			};
++
++			lt070me05000:lt070me05000@0 {
++				compatible    = "jdi,lt070me05000";
++				status        = "okay";
++				reg           = <0>;
++				reset-gpios   = <&pca 0 1>;
++				enable-gpios  = <&pca 2 0>;
++				dcdc-en-gpios = <&pca 1 0>;
++				port {
++					panel_dsi_port: endpoint {
++						remote-endpoint = <&dsi_out_port>;
++					};
++				};
++			};
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0572-clk-requests-Ignore-if-the-pointer-is-null.patch b/target/linux/bcm27xx/patches-5.10/950-0572-clk-requests-Ignore-if-the-pointer-is-null.patch
new file mode 100644
index 0000000000..5ee8e71bda
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0572-clk-requests-Ignore-if-the-pointer-is-null.patch
@@ -0,0 +1,22 @@
+From 2a5ffbf8ad9d4881f90402b1b4d7f5c2ab7b89e6 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 21 Apr 2021 12:14:44 +0200
+Subject: [PATCH] clk: requests: Ignore if the pointer is null
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/clk.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/clk/clk.c
++++ b/drivers/clk/clk.c
+@@ -2498,6 +2498,9 @@ void clk_request_done(struct clk_request
+ {
+ 	struct clk_core *core = req->clk->core;
+ 
++	if (!req)
++		return;
++
+ 	clk_prepare_lock();
+ 
+ 	list_del(&req->list);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0573-drm-vc4-hvs-Make-the-HVS-bind-first.patch b/target/linux/bcm27xx/patches-5.10/950-0573-drm-vc4-hvs-Make-the-HVS-bind-first.patch
new file mode 100644
index 0000000000..2f1d1799a0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0573-drm-vc4-hvs-Make-the-HVS-bind-first.patch
@@ -0,0 +1,41 @@
+From 7109030996578e85610f30dc60c04c952e87fb2a Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 25 Feb 2021 14:42:03 +0100
+Subject: [PATCH] drm/vc4: hvs: Make the HVS bind first
+
+We'll need to have the HVS binding before the HDMI controllers so that
+we can check whether the firmware allows to run in 4kp60. Reorder a bit
+the component list, and document the current constraints we're aware of.
+
+Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -354,12 +354,21 @@ static const struct component_master_ops
+ 	.unbind = vc4_drm_unbind,
+ };
+ 
++/*
++ * This list determines the binding order of our components, and we have
++ * a few constraints:
++ *   - The TXP driver needs to be bound before the PixelValves (CRTC)
++ *     but after the HVS to set the possible_crtc field properly
++ *   - The HDMI driver needs to be bound after the HVS so that we can
++ *     lookup the HVS maximum core clock rate and figure out if we
++ *     support 4kp60 or not.
++ */
+ static struct platform_driver *const component_drivers[] = {
++	&vc4_hvs_driver,
+ 	&vc4_hdmi_driver,
+ 	&vc4_vec_driver,
+ 	&vc4_dpi_driver,
+ 	&vc4_dsi_driver,
+-	&vc4_hvs_driver,
+ 	&vc4_txp_driver,
+ 	&vc4_crtc_driver,
+ 	&vc4_firmware_kms_driver,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0574-drm-vc4-hdmi-Properly-compute-the-BVB-clock-rate.patch b/target/linux/bcm27xx/patches-5.10/950-0574-drm-vc4-hdmi-Properly-compute-the-BVB-clock-rate.patch
new file mode 100644
index 0000000000..7a25bbe22b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0574-drm-vc4-hdmi-Properly-compute-the-BVB-clock-rate.patch
@@ -0,0 +1,55 @@
+From acc8ac41d15594d4f735531c89bbeb03d85c344d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 8 Oct 2020 16:06:08 +0200
+Subject: [PATCH] drm/vc4: hdmi: Properly compute the BVB clock rate
+
+The BVB clock rate computation doesn't take into account a mode clock of
+594MHz that we're going to need to support 4k60.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 17 +++++++++--------
+ 1 file changed, 9 insertions(+), 8 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -92,7 +92,6 @@
+ # define VC4_HD_M_ENABLE			BIT(0)
+ 
+ #define CEC_CLOCK_FREQ 40000
+-#define VC4_HSM_MID_CLOCK 149985000
+ 
+ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
+ {
+@@ -813,7 +812,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		conn_state_to_vc4_hdmi_conn_state(conn_state);
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+-	unsigned long pixel_rate, hsm_rate;
++	unsigned long bvb_rate, pixel_rate, hsm_rate;
+ 	int ret;
+ 
+ 	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+@@ -862,12 +861,14 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 
+ 	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
+ 
+-	/*
+-	 * FIXME: When the pixel freq is 594MHz (4k60), this needs to be setup
+-	 * at 300MHz.
+-	 */
+-	vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock,
+-					      (hsm_rate > VC4_HSM_MID_CLOCK ? 150000000 : 75000000));
++	if (pixel_rate > 297000000)
++		bvb_rate = 300000000;
++	else if (pixel_rate > 148500000)
++		bvb_rate = 150000000;
++	else
++		bvb_rate = 75000000;
++
++	vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock, bvb_rate);
+ 	if (IS_ERR(vc4_hdmi->bvb_req)) {
+ 		DRM_ERROR("Failed to set pixel bvb clock rate: %ld\n", PTR_ERR(vc4_hdmi->bvb_req));
+ 		clk_request_done(vc4_hdmi->hsm_req);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0575-drm-vc4-hdmi-Enable-the-scrambler.patch b/target/linux/bcm27xx/patches-5.10/950-0575-drm-vc4-hdmi-Enable-the-scrambler.patch
new file mode 100644
index 0000000000..0b00614ab8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0575-drm-vc4-hdmi-Enable-the-scrambler.patch
@@ -0,0 +1,142 @@
+From b1388530046be8a912979594f9c43b47d6f242fe Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 8 Oct 2020 16:06:58 +0200
+Subject: [PATCH] drm/vc4: hdmi: Enable the scrambler
+
+The HDMI controller on the BCM2711 includes a scrambler in order to
+reach the HDMI 2.0 modes that require it. Let's add the support for it.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c      | 64 +++++++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h |  3 ++
+ 2 files changed, 67 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -35,6 +35,7 @@
+ #include <drm/drm_edid.h>
+ #include <drm/drm_probe_helper.h>
+ #include <drm/drm_simple_kms_helper.h>
++#include <drm/drm_scdc_helper.h>
+ #include <linux/clk.h>
+ #include <linux/component.h>
+ #include <linux/i2c.h>
+@@ -77,6 +78,8 @@
+ #define VC5_HDMI_VERTB_VSPO_SHIFT		16
+ #define VC5_HDMI_VERTB_VSPO_MASK		VC4_MASK(29, 16)
+ 
++#define VC5_HDMI_SCRAMBLER_CTL_ENABLE		BIT(0)
++
+ #define VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_SHIFT	8
+ #define VC5_HDMI_DEEP_COLOR_CONFIG_1_INIT_PACK_PHASE_MASK	VC4_MASK(10, 8)
+ 
+@@ -517,6 +520,64 @@ static void vc4_hdmi_set_infoframes(stru
+ 	vc4_hdmi_set_hdr_infoframe(encoder);
+ }
+ 
++static bool vc4_hdmi_supports_scrambling(struct drm_encoder *encoder,
++					 struct drm_display_mode *mode)
++{
++	struct vc4_hdmi_encoder *vc4_encoder = to_vc4_hdmi_encoder(encoder);
++	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++	struct drm_display_info *display = &vc4_hdmi->connector.display_info;
++
++	if (!vc4_encoder->hdmi_monitor)
++		return false;
++
++	if (!display->hdmi.scdc.supported ||
++	    !display->hdmi.scdc.scrambling.supported)
++		return false;
++
++	return true;
++}
++
++static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
++{
++	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
++	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++
++	if (!vc4_hdmi_supports_scrambling(encoder, mode))
++		return;
++
++	if (!vc4_hdmi_mode_needs_scrambling(mode))
++		return;
++
++	drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, true);
++	drm_scdc_set_scrambling(vc4_hdmi->ddc, true);
++
++	HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) |
++		   VC5_HDMI_SCRAMBLER_CTL_ENABLE);
++}
++
++static void vc4_hdmi_disable_scrambling(struct drm_encoder *encoder)
++{
++	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++	struct drm_crtc *crtc = encoder->crtc;
++
++	/*
++	 * At boot, encoder->crtc will be NULL. Since we don't know the
++	 * state of the scrambler and in order to avoid any
++	 * inconsistency, let's disable it all the time.
++	 */
++	if (crtc && !vc4_hdmi_supports_scrambling(encoder, &crtc->mode))
++		return;
++
++	if (crtc && !vc4_hdmi_mode_needs_scrambling(&crtc->mode))
++		return;
++
++	HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) &
++		   ~VC5_HDMI_SCRAMBLER_CTL_ENABLE);
++
++	drm_scdc_set_scrambling(vc4_hdmi->ddc, false);
++	drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, false);
++}
++
+ static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
+ 					       struct drm_atomic_state *state)
+ {
+@@ -529,6 +590,8 @@ static void vc4_hdmi_encoder_post_crtc_d
+ 
+ 	HDMI_WRITE(HDMI_VID_CTL,
+ 		   HDMI_READ(HDMI_VID_CTL) | VC4_HD_VID_CTL_BLANKPIX);
++
++	vc4_hdmi_disable_scrambling(encoder);
+ }
+ 
+ static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder,
+@@ -979,6 +1042,7 @@ static void vc4_hdmi_encoder_post_crtc_e
+ 	}
+ 
+ 	vc4_hdmi_recenter_fifo(vc4_hdmi);
++	vc4_hdmi_enable_scrambling(encoder);
+ }
+ 
+ static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder)
+--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
+@@ -100,6 +100,7 @@ enum vc4_hdmi_field {
+ 	HDMI_RM_FORMAT,
+ 	HDMI_RM_OFFSET,
+ 	HDMI_SCHEDULER_CONTROL,
++	HDMI_SCRAMBLER_CTL,
+ 	HDMI_SW_RESET_CONTROL,
+ 	HDMI_TX_PHY_CHANNEL_SWAP,
+ 	HDMI_TX_PHY_CLK_DIV,
+@@ -238,6 +239,7 @@ static const struct vc4_hdmi_register vc
+ 	VC4_HDMI_REG(HDMI_GCP_CONFIG, 0x178),
+ 	VC4_HDMI_REG(HDMI_GCP_WORD_1, 0x17c),
+ 	VC4_HDMI_REG(HDMI_HOTPLUG, 0x1a8),
++	VC4_HDMI_REG(HDMI_SCRAMBLER_CTL, 0x1c4),
+ 
+ 	VC5_DVP_REG(HDMI_CLOCK_STOP, 0x0bc),
+ 	VC5_DVP_REG(HDMI_VEC_INTERFACE_XBAR, 0x0f0),
+@@ -317,6 +319,7 @@ static const struct vc4_hdmi_register vc
+ 	VC4_HDMI_REG(HDMI_GCP_CONFIG, 0x178),
+ 	VC4_HDMI_REG(HDMI_GCP_WORD_1, 0x17c),
+ 	VC4_HDMI_REG(HDMI_HOTPLUG, 0x1a8),
++	VC4_HDMI_REG(HDMI_SCRAMBLER_CTL, 0x1c4),
+ 
+ 	VC5_DVP_REG(HDMI_CLOCK_STOP, 0x0bc),
+ 	VC5_DVP_REG(HDMI_VEC_INTERFACE_XBAR, 0x0f0),
diff --git a/target/linux/bcm27xx/patches-5.10/950-0576-drm-vc4-hdmi-Raise-the-maximum-clock-rate.patch b/target/linux/bcm27xx/patches-5.10/950-0576-drm-vc4-hdmi-Raise-the-maximum-clock-rate.patch
new file mode 100644
index 0000000000..29ce1abe3d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0576-drm-vc4-hdmi-Raise-the-maximum-clock-rate.patch
@@ -0,0 +1,30 @@
+From 4950d441d18161b2432965ba3fc99382beafdf02 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 8 Oct 2020 16:08:06 +0200
+Subject: [PATCH] drm/vc4: hdmi: Raise the maximum clock rate
+
+Now that we have the infrastructure in place, we can raise the maximum
+pixel rate we can reach for HDMI0 on the BCM2711.
+
+HDMI1 is left untouched since its pixelvalve has a smaller FIFO and
+would need a clock faster than what we can provide to support the same
+modes.
+
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -2418,7 +2418,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.encoder_type		= VC4_ENCODER_TYPE_HDMI0,
+ 	.debugfs_name		= "hdmi0_regs",
+ 	.card_name		= "vc4-hdmi-0",
+-	.max_pixel_clock	= 297000000,
++	.max_pixel_clock	= 600000000,
+ 	.registers		= vc5_hdmi_hdmi0_fields,
+ 	.num_registers		= ARRAY_SIZE(vc5_hdmi_hdmi0_fields),
+ 	.phy_lane_mapping	= {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0577-vc4-drm-hdmi-Handle-case-when-bvb-clock-is-null.patch b/target/linux/bcm27xx/patches-5.10/950-0577-vc4-drm-hdmi-Handle-case-when-bvb-clock-is-null.patch
new file mode 100644
index 0000000000..93f4524a6f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0577-vc4-drm-hdmi-Handle-case-when-bvb-clock-is-null.patch
@@ -0,0 +1,45 @@
+From 33e8e066af31c3af1d18d615f5e8ab5e528e0000 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 21 Apr 2021 15:15:42 +0100
+Subject: [PATCH] vc4/drm: hdmi: Handle case when bvb clock is null
+
+Pi2/3 have no bvb clock but want the other clocks to remain enabled here
+
+See: https://github.com/raspberrypi/linux/issues/4299
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -607,7 +607,8 @@ static void vc4_hdmi_encoder_post_crtc_p
+ 		   HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
+ 
+ 	clk_disable_unprepare(vc4_hdmi->pixel_bvb_clock);
+-	clk_request_done(vc4_hdmi->bvb_req);
++	if (vc4_hdmi->bvb_req)
++		clk_request_done(vc4_hdmi->bvb_req);
+ 	clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 	clk_request_done(vc4_hdmi->hsm_req);
+ 	clk_disable_unprepare(vc4_hdmi->pixel_clock);
+@@ -931,7 +932,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	else
+ 		bvb_rate = 75000000;
+ 
+-	vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock, bvb_rate);
++	if (vc4_hdmi->pixel_bvb_clock)
++		vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock, bvb_rate);
+ 	if (IS_ERR(vc4_hdmi->bvb_req)) {
+ 		DRM_ERROR("Failed to set pixel bvb clock rate: %ld\n", PTR_ERR(vc4_hdmi->bvb_req));
+ 		clk_request_done(vc4_hdmi->hsm_req);
+@@ -943,7 +945,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	ret = clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
+-		clk_request_done(vc4_hdmi->bvb_req);
++		if (vc4_hdmi->bvb_req)
++			clk_request_done(vc4_hdmi->bvb_req);
+ 		clk_request_done(vc4_hdmi->hsm_req);
+ 		clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0578-overlays-spi-rtc-Add-ds3232-and-ds3234.patch b/target/linux/bcm27xx/patches-5.10/950-0578-overlays-spi-rtc-Add-ds3232-and-ds3234.patch
new file mode 100644
index 0000000000..3a2970abd6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0578-overlays-spi-rtc-Add-ds3232-and-ds3234.patch
@@ -0,0 +1,125 @@
+From 8273b9e71c1f5c1f6f74faac21de64bf42686817 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 19 Apr 2021 10:33:24 +0100
+Subject: [PATCH] overlays: spi-rtc: Add ds3232 and ds3234
+
+Extend the spi-rtc overlay to support the ds3232 and ds3234 RTCs, as
+well as adding parameters to select difference SPI controllers and
+chip selects.
+
+N.B. The default CS is now active-low - use the "cs_high" parameter to
+override this.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             | 12 +++-
+ .../arm/boot/dts/overlays/spi-rtc-overlay.dts | 58 ++++++++++++++++---
+ 2 files changed, 61 insertions(+), 9 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2689,7 +2689,17 @@ Params: <None>
+ Name:   spi-rtc
+ Info:   Adds support for a number of SPI Real Time Clock devices
+ Load:   dtoverlay=spi-rtc,<param>=<val>
+-Params: pcf2123                 Select the PCF2123 device
++Params: ds3232                  Select the DS3232 device
++        ds3234                  Select the DS3234 device
++        pcf2123                 Select the PCF2123 device
++
++        spi0_0                  Use spi0.0 (default)
++        spi0_1                  Use spi0.1
++        spi1_0                  Use spi1.0
++        spi1_1                  Use spi1.1
++        spi2_0                  Use spi2.0
++        spi2_1                  Use spi2.1
++        cs_high                 This device requires an active-high CS
+ 
+ 
+ Name:   spi0-1cs
+--- a/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/spi-rtc-overlay.dts
+@@ -1,3 +1,4 @@
++// Definitions for several SPI-based Real Time Clocks
+ /dts-v1/;
+ /plugin/;
+ 
+@@ -5,29 +6,70 @@
+ 	compatible = "brcm,bcm2835";
+ 
+ 	fragment@0 {
+-		target = <&spidev0>;
++		target = <&rtc>;
+ 		__dormant__ {
+-			status = "disabled";
++			compatible = "maxim,ds3232";
+ 		};
+ 	};
+ 
+ 	fragment@1 {
+-		target = <&spi0>;
++		target = <&rtc>;
++		__dormant__ {
++			compatible = "maxim,ds3234";
++		};
++	};
++
++	fragment@2 {
++		target = <&rtc>;
+ 		__dormant__ {
++			compatible = "nxp,rtc-pcf2123";
++		};
++	};
++
++	spidev: fragment@100 {
++		target = <&spidev0>;
++		__overlay__ {
++			status = "disabled";
++		};
++	};
++
++	frag101: fragment@101 {
++		target = <&spi0>;
++		__overlay__ {
+ 			#address-cells = <1>;
+ 			#size-cells = <0>;
+ 			status = "okay";
+ 
+-			rtc-pcf2123@0 {
+-				compatible = "nxp,rtc-pcf2123";
+-				spi-max-frequency = <5000000>;
+-				spi-cs-high = <1>;
++			rtc: rtc@0 {
+ 				reg = <0>;
++				spi-max-frequency = <5000000>;
+ 			};
+ 		};
+ 	};
+ 
+ 	__overrides__ {
+-		pcf2123 = <0>, "=0=1";
++		spi0_0 = <&spidev>, "target:0=",<&spidev0>,
++		         <&frag101>, "target:0=",<&spi0>,
++		         <&rtc>, "reg:0=0";
++		spi0_1 = <&spidev>, "target:0=",<&spidev1>,
++		         <&frag101>, "target:0=",<&spi0>,
++		         <&rtc>, "reg:0=1";
++		spi1_0 = <0>,"-100",
++		         <&frag101>, "target:0=",<&spi1>,
++		         <&rtc>, "reg:0=0";
++		spi1_1 = <0>,"-100",
++		         <&frag101>, "target:0=",<&spi1>,
++		         <&rtc>, "reg:0=1";
++		spi2_0 = <0>,"-100",
++		         <&frag101>, "target:0=",<&spi2>,
++		         <&rtc>, "reg:0=0";
++		spi2_1 = <0>,"-100",
++		         <&frag101>, "target:0=",<&spi2>,
++		         <&rtc>, "reg:0=1";
++		cs_high = <&rtc>, "spi-cs-high?";
++
++		ds3232 = <0>,"+0";
++		ds3234 = <0>,"+1";
++		pcf2123 = <0>,"+2";
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0579-drm-vc4-Fix-VEC-address-for-BCM2711-in-the-devicetre.patch b/target/linux/bcm27xx/patches-5.10/950-0579-drm-vc4-Fix-VEC-address-for-BCM2711-in-the-devicetre.patch
new file mode 100644
index 0000000000..e4f84cc2ca
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0579-drm-vc4-Fix-VEC-address-for-BCM2711-in-the-devicetre.patch
@@ -0,0 +1,72 @@
+From 2d7a55e6a467b54ea40366f689e7702b88383e38 Mon Sep 17 00:00:00 2001
+From: kFYatek <4499762+kFYatek@users.noreply.github.com>
+Date: Sat, 27 Mar 2021 21:43:33 +0100
+Subject: [PATCH] drm/vc4: Fix VEC address for BCM2711 in the
+ devicetrees
+
+The VEC has a different address (0x7ec13000) on the BCM2711 (used in
+e.g. Raspberry Pi 4) compared to BCM238x (e.g. Pi 3 and earlier). This
+was erroneously not taken account for.
+
+Definition of the VEC in the devicetrees had to be moved from
+bcm283x.dtsi to bcm2711.dtsi and bcm2835-common.dtsi to allow for this
+differentiation.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi        | 8 ++++++++
+ arch/arm/boot/dts/bcm2835-common.dtsi | 8 ++++++++
+ arch/arm/boot/dts/bcm283x.dtsi        | 8 --------
+ 3 files changed, 16 insertions(+), 8 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -300,6 +300,14 @@
+ 			status = "disabled";
+ 		};
+ 
++		vec: vec@7ec13000 {
++			compatible = "brcm,bcm2835-vec";
++			reg = <0x7ec13000 0x1000>;
++			clocks = <&clocks BCM2835_CLOCK_VEC>;
++			interrupts = <2 27>;
++			status = "disabled";
++		};
++
+ 		dvp: clock@7ef00000 {
+ 			compatible = "brcm,brcm2711-dvp";
+ 			reg = <0x7ef00000 0x10>;
+--- a/arch/arm/boot/dts/bcm2835-common.dtsi
++++ b/arch/arm/boot/dts/bcm2835-common.dtsi
+@@ -106,6 +106,14 @@
+ 			status = "okay";
+ 		};
+ 
++		vec: vec@7e806000 {
++			compatible = "brcm,bcm2835-vec";
++			reg = <0x7e806000 0x1000>;
++			clocks = <&clocks BCM2835_CLOCK_VEC>;
++			interrupts = <2 27>;
++			status = "disabled";
++		};
++
+ 		pixelvalve@7e807000 {
+ 			compatible = "brcm,bcm2835-pixelvalve2";
+ 			reg = <0x7e807000 0x100>;
+--- a/arch/arm/boot/dts/bcm283x.dtsi
++++ b/arch/arm/boot/dts/bcm283x.dtsi
+@@ -488,14 +488,6 @@
+ 			status = "disabled";
+ 		};
+ 
+-		vec: vec@7e806000 {
+-			compatible = "brcm,bcm2835-vec";
+-			reg = <0x7e806000 0x1000>;
+-			clocks = <&clocks BCM2835_CLOCK_VEC>;
+-			interrupts = <2 27>;
+-			status = "disabled";
+-		};
+-
+ 		usb: usb@7e980000 {
+ 			compatible = "brcm,bcm2835-usb";
+ 			reg = <0x7e980000 0x10000>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0580-drm-vc4-Separate-VEC-compatible-variants.patch b/target/linux/bcm27xx/patches-5.10/950-0580-drm-vc4-Separate-VEC-compatible-variants.patch
new file mode 100644
index 0000000000..e38f5fc600
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0580-drm-vc4-Separate-VEC-compatible-variants.patch
@@ -0,0 +1,106 @@
+From 8d75ba91d48ee9fd39284bf44ca5e729e134e18c Mon Sep 17 00:00:00 2001
+From: kFYatek <4499762+kFYatek@users.noreply.github.com>
+Date: Sat, 27 Mar 2021 21:43:40 +0100
+Subject: [PATCH] drm/vc4: Separate VEC compatible variants
+
+The VEC's DAC on BCM2711 is slightly different compared to the one on
+BCM283x and needs different configuration. In particular, bit 3
+(mask 0x8) switches the BCM2711 DAC input to "self-test input data",
+which makes the output unusable. Separating two compatible variants in
+devicetrees and the DRM driver was therefore necessary.
+
+The configurations used for both variants have been borrowed from
+Raspberry Pi (model 3B for BCM283x, 4B for BCM2711) firmware defaults.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ .../bindings/display/brcm,bcm2835-vec.yaml    |  4 ++-
+ arch/arm/boot/dts/bcm2711.dtsi                |  2 +-
+ drivers/gpu/drm/vc4/vc4_vec.c                 | 27 +++++++++++++++----
+ 3 files changed, 26 insertions(+), 7 deletions(-)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vec.yaml
+@@ -11,7 +11,9 @@ maintainers:
+ 
+ properties:
+   compatible:
+-    const: brcm,bcm2835-vec
++    enum:
++      - brcm,bcm2835-vec
++      - brcm,bcm2711-vec
+ 
+   reg:
+     maxItems: 1
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -301,7 +301,7 @@
+ 		};
+ 
+ 		vec: vec@7ec13000 {
+-			compatible = "brcm,bcm2835-vec";
++			compatible = "brcm,bcm2711-vec";
+ 			reg = <0x7ec13000 0x1000>;
+ 			clocks = <&clocks BCM2835_CLOCK_VEC>;
+ 			interrupts = <2 27>;
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -154,9 +154,14 @@
+ #define VEC_DAC_MISC_DAC_RST_N		BIT(0)
+ 
+ 
++struct vc4_vec_variant {
++	u32 dac_config;
++};
++
+ /* General VEC hardware state. */
+ struct vc4_vec {
+ 	struct platform_device *pdev;
++	const struct vc4_vec_variant *variant;
+ 
+ 	struct drm_encoder *encoder;
+ 	struct drm_connector *connector;
+@@ -451,10 +456,7 @@ static void vc4_vec_encoder_enable(struc
+ 	VEC_WRITE(VEC_CONFIG2,
+ 		  VEC_CONFIG2_UV_DIG_DIS | VEC_CONFIG2_RGB_DIG_DIS);
+ 	VEC_WRITE(VEC_CONFIG3, VEC_CONFIG3_HORIZ_LEN_STD);
+-	VEC_WRITE(VEC_DAC_CONFIG,
+-		  VEC_DAC_CONFIG_DAC_CTRL(0xc) |
+-		  VEC_DAC_CONFIG_DRIVER_CTRL(0xc) |
+-		  VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x46));
++	VEC_WRITE(VEC_DAC_CONFIG, vec->variant->dac_config);
+ 
+ 	/* Mask all interrupts. */
+ 	VEC_WRITE(VEC_MASK0, 0);
+@@ -507,8 +509,21 @@ static const struct drm_encoder_helper_f
+ 	.atomic_mode_set = vc4_vec_encoder_atomic_mode_set,
+ };
+ 
++static const struct vc4_vec_variant bcm2835_vec_variant = {
++	.dac_config = VEC_DAC_CONFIG_DAC_CTRL(0xc) |
++		      VEC_DAC_CONFIG_DRIVER_CTRL(0xc) |
++		      VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x46)
++};
++
++static const struct vc4_vec_variant bcm2711_vec_variant = {
++	.dac_config = VEC_DAC_CONFIG_DAC_CTRL(0x0) |
++		      VEC_DAC_CONFIG_DRIVER_CTRL(0x80) |
++		      VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x61)
++};
++
+ static const struct of_device_id vc4_vec_dt_match[] = {
+-	{ .compatible = "brcm,bcm2835-vec", .data = NULL },
++	{ .compatible = "brcm,bcm2835-vec", .data = &bcm2835_vec_variant },
++	{ .compatible = "brcm,bcm2711-vec", .data = &bcm2711_vec_variant },
+ 	{ /* sentinel */ },
+ };
+ 
+@@ -546,6 +561,8 @@ static int vc4_vec_bind(struct device *d
+ 	vec->encoder = &vc4_vec_encoder->base.base;
+ 
+ 	vec->pdev = pdev;
++	vec->variant = (const struct vc4_vec_variant *)
++		of_device_get_match_data(dev);
+ 	vec->regs = vc4_ioremap_regs(pdev, 0);
+ 	if (IS_ERR(vec->regs))
+ 		return PTR_ERR(vec->regs);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0581-clk-requests-Dereference-the-request-pointer-after-t.patch b/target/linux/bcm27xx/patches-5.10/950-0581-clk-requests-Dereference-the-request-pointer-after-t.patch
new file mode 100644
index 0000000000..9f87aadc17
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0581-clk-requests-Dereference-the-request-pointer-after-t.patch
@@ -0,0 +1,30 @@
+From 491c6fbbe8fadead32fbe316fd5d0f21e9aa01f2 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 22 Apr 2021 10:45:37 +0200
+Subject: [PATCH] clk: requests: Dereference the request pointer after
+ the check
+
+The current code will first dereference the req pointer and then test if
+it's NULL, resulting in a NULL pointer dereference if req is indeed
+NULL. Reorder the test and derefence to avoid the issue
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/clk.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/clk/clk.c
++++ b/drivers/clk/clk.c
+@@ -2496,10 +2496,11 @@ EXPORT_SYMBOL_GPL(clk_request_start);
+  */
+ void clk_request_done(struct clk_request *req)
+ {
+-	struct clk_core *core = req->clk->core;
++	struct clk_core *core;
+ 
+ 	if (!req)
+ 		return;
++	core = req->clk->core;
+ 
+ 	clk_prepare_lock();
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0582-staging-bcm2835-codec-Fix-support-for-levels-4.1-and.patch b/target/linux/bcm27xx/patches-5.10/950-0582-staging-bcm2835-codec-Fix-support-for-levels-4.1-and.patch
new file mode 100644
index 0000000000..a5bc882748
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0582-staging-bcm2835-codec-Fix-support-for-levels-4.1-and.patch
@@ -0,0 +1,36 @@
+From b935f992a71593042f118d004df7afb9c7f8b2f2 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Mar 2021 18:28:40 +0000
+Subject: [PATCH] staging/bcm2835-codec: Fix support for levels 4.1 and
+ 4.2
+
+The driver said it supported H264 levels 4.1 and 4.2, but
+was missing the V4L2 to MMAL mappings.
+
+Add in those mappings.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c  | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1789,6 +1789,17 @@ static int bcm2835_codec_set_level_profi
+ 		case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
+ 			param.level = MMAL_VIDEO_LEVEL_H264_4;
+ 			break;
++		/*
++		 * Note that the hardware spec is level 4.0. Levels above that
++		 * are there for correctly encoding the headers and may not
++		 * be able to keep up with real-time.
++		 */
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
++			param.level = MMAL_VIDEO_LEVEL_H264_41;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
++			param.level = MMAL_VIDEO_LEVEL_H264_42;
++			break;
+ 		default:
+ 			/* Should never get here */
+ 			break;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0583-staging-bcm2835-codec-Set-the-colourspace-appropriat.patch b/target/linux/bcm27xx/patches-5.10/950-0583-staging-bcm2835-codec-Set-the-colourspace-appropriat.patch
new file mode 100644
index 0000000000..7ee031fe7f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0583-staging-bcm2835-codec-Set-the-colourspace-appropriat.patch
@@ -0,0 +1,83 @@
+From 8c0f9780d9a1b7812e01605bcac497503b175f53 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 4 Feb 2021 19:08:23 +0000
+Subject: [PATCH] staging/bcm2835-codec: Set the colourspace
+ appropriately for RGB formats
+
+Video decode supports YUV and RGB formats. YUV needs to report SMPTE170M
+or REC709 appropriately, whilst RGB should report SRGB.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c        | 51 +++++++++++++------
+ 1 file changed, 36 insertions(+), 15 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -930,23 +930,43 @@ static void send_eos_event(struct bcm283
+ 	v4l2_event_queue_fh(&ctx->fh, &ev);
+ }
+ 
+-static void color_mmal2v4l(struct bcm2835_codec_ctx *ctx, u32 mmal_color_space)
++static void color_mmal2v4l(struct bcm2835_codec_ctx *ctx, u32 encoding,
++			   u32 color_space)
+ {
+-	switch (mmal_color_space) {
+-	case MMAL_COLOR_SPACE_ITUR_BT601:
+-		ctx->colorspace = V4L2_COLORSPACE_REC709;
+-		ctx->xfer_func = V4L2_XFER_FUNC_709;
+-		ctx->ycbcr_enc = V4L2_YCBCR_ENC_601;
+-		ctx->quant = V4L2_QUANTIZATION_LIM_RANGE;
+-		break;
++	int is_rgb;
+ 
+-	case MMAL_COLOR_SPACE_ITUR_BT709:
+-		ctx->colorspace = V4L2_COLORSPACE_REC709;
+-		ctx->xfer_func = V4L2_XFER_FUNC_709;
+-		ctx->ycbcr_enc = V4L2_YCBCR_ENC_709;
+-		ctx->quant = V4L2_QUANTIZATION_LIM_RANGE;
++	switch (encoding) {
++	case MMAL_ENCODING_I420:
++	case MMAL_ENCODING_YV12:
++	case MMAL_ENCODING_NV12:
++	case MMAL_ENCODING_NV21:
++	case V4L2_PIX_FMT_YUYV:
++	case V4L2_PIX_FMT_YVYU:
++	case V4L2_PIX_FMT_UYVY:
++	case V4L2_PIX_FMT_VYUY:
++		/* YUV based colourspaces */
++		switch (color_space) {
++		case MMAL_COLOR_SPACE_ITUR_BT601:
++			ctx->colorspace = V4L2_COLORSPACE_SMPTE170M;
++			break;
++
++		case MMAL_COLOR_SPACE_ITUR_BT709:
++			ctx->colorspace = V4L2_COLORSPACE_REC709;
++			break;
++		default:
++			break;
++		}
++		break;
++	default:
++		/* RGB based colourspaces */
++		ctx->colorspace = V4L2_COLORSPACE_SRGB;
+ 		break;
+ 	}
++	ctx->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(ctx->colorspace);
++	ctx->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(ctx->colorspace);
++	is_rgb = ctx->colorspace == V4L2_COLORSPACE_SRGB;
++	ctx->quant = V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, ctx->colorspace,
++						   ctx->ycbcr_enc);
+ }
+ 
+ static void handle_fmt_changed(struct bcm2835_codec_ctx *ctx,
+@@ -985,7 +1005,8 @@ static void handle_fmt_changed(struct bc
+ 	q_data->height = format->es.video.height;
+ 	q_data->sizeimage = format->buffer_size_min;
+ 	if (format->es.video.color_space)
+-		color_mmal2v4l(ctx, format->es.video.color_space);
++		color_mmal2v4l(ctx, format->format.encoding,
++			       format->es.video.color_space);
+ 
+ 	q_data->aspect_ratio.numerator = format->es.video.par.num;
+ 	q_data->aspect_ratio.denominator = format->es.video.par.den;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0584-staging-bcm2835-codec-Pass-corrupt-frame-flag.patch b/target/linux/bcm27xx/patches-5.10/950-0584-staging-bcm2835-codec-Pass-corrupt-frame-flag.patch
new file mode 100644
index 0000000000..9c5a2a37b2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0584-staging-bcm2835-codec-Pass-corrupt-frame-flag.patch
@@ -0,0 +1,42 @@
+From 4dfae141d031d0d85c5d338a09fa9253343861e3 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 9 Dec 2020 18:53:56 +0000
+Subject: [PATCH] staging/bcm2835-codec: Pass corrupt frame flag.
+
+MMAL has the flag MMAL_BUFFER_HEADER_FLAG_CORRUPTED but that
+wasn't being passed through, so add it.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c        | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1019,6 +1019,7 @@ static void op_buffer_cb(struct vchiq_mm
+ 			 struct mmal_buffer *mmal_buf)
+ {
+ 	struct bcm2835_codec_ctx *ctx = port->cb_ctx;
++	enum vb2_buffer_state buf_state = VB2_BUF_STATE_DONE;
+ 	struct m2m_mmal_buffer *buf;
+ 	struct vb2_v4l2_buffer *vb2;
+ 
+@@ -1075,6 +1076,9 @@ static void op_buffer_cb(struct vchiq_mm
+ 		vb2->flags |= V4L2_BUF_FLAG_LAST;
+ 	}
+ 
++	if (mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_CORRUPTED)
++		buf_state = VB2_BUF_STATE_ERROR;
++
+ 	/* vb2 timestamps in nsecs, mmal in usecs */
+ 	vb2->vb2_buf.timestamp = mmal_buf->pts * 1000;
+ 
+@@ -1082,7 +1086,7 @@ static void op_buffer_cb(struct vchiq_mm
+ 	if (mmal_buf->mmal_flags & MMAL_BUFFER_HEADER_FLAG_KEYFRAME)
+ 		vb2->flags |= V4L2_BUF_FLAG_KEYFRAME;
+ 
+-	vb2_buffer_done(&vb2->vb2_buf, VB2_BUF_STATE_DONE);
++	vb2_buffer_done(&vb2->vb2_buf, buf_state);
+ 	ctx->num_op_buffers++;
+ 
+ 	v4l2_dbg(2, debug, &ctx->dev->v4l2_dev, "%s: done %d output buffers\n",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0585-staging-bcm2835-camera-Add-support-for-H264-levels-4.patch b/target/linux/bcm27xx/patches-5.10/950-0585-staging-bcm2835-camera-Add-support-for-H264-levels-4.patch
new file mode 100644
index 0000000000..aaf302f72a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0585-staging-bcm2835-camera-Add-support-for-H264-levels-4.patch
@@ -0,0 +1,58 @@
+From 8c85b83a8dc6c62fa20b87f2fe51b80a3bafc169 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 25 Mar 2021 18:34:50 +0000
+Subject: [PATCH] staging/bcm2835-camera: Add support for H264 levels
+ 4.1 and 4.2
+
+Whilst the hardware can't achieve the limits of level 4.2 under
+all situations, it can exceed level 4.0.
+
+Allow selection of levels 4.1 and 4.2.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-camera/controls.c   | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
++++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
+@@ -709,6 +709,8 @@ static int ctrl_set_video_encode_profile
+ 		case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
+ 		case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
+ 		case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
+ 			dev->capture.enc_level = ctrl->val;
+ 			break;
+ 		default:
+@@ -774,6 +776,17 @@ static int ctrl_set_video_encode_profile
+ 		case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
+ 			param.level = MMAL_VIDEO_LEVEL_H264_4;
+ 			break;
++		/*
++		 * Note that the hardware spec is level 4.0. Achieving levels
++		 * above that depend on exactly the resolution and frame rate
++		 * being requested.
++		 */
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
++			param.level = MMAL_VIDEO_LEVEL_H264_41;
++			break;
++		case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
++			param.level = MMAL_VIDEO_LEVEL_H264_42;
++			break;
+ 		default:
+ 			/* Should never get here */
+ 			break;
+@@ -1224,8 +1237,10 @@ static const struct bm2835_mmal_v4l2_ctr
+ 			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
+ 			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
+ 			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
+-			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
+-		.max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
++			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
++			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_1) |
++			 BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_2)),
++		.max = V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
+ 		.def = V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
+ 		.step = 1,
+ 		.imenu = NULL,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0586-staging-bcm2835-codec-Do-not-update-crop-from-S_FMT-.patch b/target/linux/bcm27xx/patches-5.10/950-0586-staging-bcm2835-codec-Do-not-update-crop-from-S_FMT-.patch
new file mode 100644
index 0000000000..cace71630b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0586-staging-bcm2835-codec-Do-not-update-crop-from-S_FMT-.patch
@@ -0,0 +1,36 @@
+From 0409260a821dd9b8d3d8e5f4fbdee1b6f892bd4d Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 15 Apr 2021 11:07:55 +0100
+Subject: [PATCH] staging/bcm2835-codec: Do not update crop from S_FMT
+ after res change
+
+During decode, setting the CAPTURE queue format was setting the crop
+rectangle to the requested height before aligning up the format to
+cater for simple clients that weren't expecting to deal with cropping
+and the SELECTION API.
+This caused problems on some resolution change events if the client
+didn't also then use the selection API.
+
+Disable the crop update after a resolution change.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c       | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -999,6 +999,13 @@ static void handle_fmt_changed(struct bc
+ 
+ 	q_data->crop_width = format->es.video.crop.width;
+ 	q_data->crop_height = format->es.video.crop.height;
++	/*
++	 * Stop S_FMT updating crop_height should it be unaligned.
++	 * Client can still update the crop region via S_SELECTION should it
++	 * really want to, but the decoder is likely to complain that the
++	 * format then doesn't match.
++	 */
++	q_data->selection_set = true;
+ 	q_data->bytesperline = get_bytesperline(format->es.video.width,
+ 						q_data->fmt);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0587-staging-bcm2835-isp-Fix-compiler-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0587-staging-bcm2835-isp-Fix-compiler-warning.patch
new file mode 100644
index 0000000000..730e386b76
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0587-staging-bcm2835-isp-Fix-compiler-warning.patch
@@ -0,0 +1,25 @@
+From 2b301480c8ea5a2ca0c79d5a51981335976afe88 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 23 Apr 2021 16:16:49 +0100
+Subject: [PATCH] staging/bcm2835-isp: Fix compiler warning
+
+The result of dividing a u32 by a size_t is an unsigned int on arm32
+and a long unsigned int on arm64. Use "%zu" (the size_t format) to
+remove the build warning for 64-bit builds.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
+@@ -1235,7 +1235,7 @@ static int bcm2835_isp_get_supported_fmt
+ 	if (ret) {
+ 		if (ret == MMAL_MSG_STATUS_ENOSPC) {
+ 			v4l2_err(&dev->v4l2_dev,
+-				 "%s: port has more encodings than we provided space for. Some are dropped (%u vs %u).\n",
++				 "%s: port has more encodings than we provided space for. Some are dropped (%zu vs %u).\n",
+ 				 __func__, param_size / sizeof(u32),
+ 				 MAX_SUPPORTED_ENCODINGS);
+ 			num_encodings = MAX_SUPPORTED_ENCODINGS;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0588-overlays-Allow-multiple-gpio-shutdown-instances.patch b/target/linux/bcm27xx/patches-5.10/950-0588-overlays-Allow-multiple-gpio-shutdown-instances.patch
new file mode 100644
index 0000000000..054e048c69
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0588-overlays-Allow-multiple-gpio-shutdown-instances.patch
@@ -0,0 +1,42 @@
+From 76eb23d534419db5e794699ae77f1e644f975e8c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Sun, 25 Apr 2021 21:07:03 +0100
+Subject: [PATCH] overlays: Allow multiple gpio-shutdown instances
+
+There is no reason not to support multiple gpio-shutdown signals,
+so add the necessary __override__ magic.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
++++ b/arch/arm/boot/dts/overlays/gpio-shutdown-overlay.dts
+@@ -24,7 +24,7 @@
+ 			// by a "pinctrl client", as is done below. See:
+ 			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+ 			//   https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
+-			pin_state: shutdown_button_pins {
++			pin_state: shutdown_button_pins@3 {
+ 				brcm,pins = <3>; // gpio number
+ 				brcm,function = <0>; // 0 = input, 1 = output
+ 				brcm,pull = <2>; // 0 = none, 1 = pull down, 2 = pull up
+@@ -35,7 +35,7 @@
+ 		// Add a new device to the /soc devicetree node
+ 		target-path = "/soc";
+ 		__overlay__ {
+-			shutdown_button {
++			shutdown_button: shutdown_button@3 {
+ 				// Let the gpio-keys driver handle this device. See:
+ 				// https://www.kernel.org/doc/Documentation/devicetree/bindings/input/gpio-keys.txt
+ 				compatible = "gpio-keys";
+@@ -69,6 +69,8 @@
+ 	__overrides__ {
+ 		// Allow overriding the GPIO number.
+ 		gpio_pin = <&button>,"gpios:4",
++			   <&shutdown_button>,"reg:0",
++			   <&pin_state>,"reg:0",
+ 		           <&pin_state>,"brcm,pins:0";
+ 
+ 		// Allow changing the internal pullup/down state. 0 = none, 1 = pulldown, 2 = pullup
diff --git a/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch b/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
new file mode 100644
index 0000000000..bf0be953ce
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
@@ -0,0 +1,30 @@
+From 81fe79da00f4130ef329d22d6b9433f1ff7f2b6f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Apr 2021 09:58:14 +0100
+Subject: [PATCH] overlays: README - improve the gpio-poweroff guide
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -987,8 +987,15 @@ Params: <None>
+ 
+ 
+ Name:   gpio-poweroff
+-Info:   Drives a GPIO high or low on poweroff (including halt). Enabling this
+-        overlay will prevent the ability to boot by driving GPIO3 low.
++Info:   Drives a GPIO high or low on poweroff (including halt). Using this
++        overlay interferes with the normal power-down sequence, preventing the
++        kernel from resetting the SoC (a necessary step in a normal power-off
++        or reboot). This also disables the ability to triger a boot by driving
++        GPIO3 low.
++
++        Users of this overlay are required to provide an external mechanism to
++        switch off the power supply when signalled - failure to do so results
++        in a kernel BUG, increased power consumption and undefined behaviour.
+ Load:   dtoverlay=gpio-poweroff,<param>=<val>
+ Params: gpiopin                 GPIO for signalling (default 26)
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0590-SQUASH-overlays-Fix-typo-in-README.patch b/target/linux/bcm27xx/patches-5.10/950-0590-SQUASH-overlays-Fix-typo-in-README.patch
new file mode 100644
index 0000000000..f31872644b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0590-SQUASH-overlays-Fix-typo-in-README.patch
@@ -0,0 +1,21 @@
+From 2b24b2486cd95e2b644efe190ab1577d15ab3dd3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Apr 2021 10:08:21 +0100
+Subject: [PATCH] SQUASH: overlays: Fix typo in README
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -990,7 +990,7 @@ Name:   gpio-poweroff
+ Info:   Drives a GPIO high or low on poweroff (including halt). Using this
+         overlay interferes with the normal power-down sequence, preventing the
+         kernel from resetting the SoC (a necessary step in a normal power-off
+-        or reboot). This also disables the ability to triger a boot by driving
++        or reboot). This also disables the ability to trigger a boot by driving
+         GPIO3 low.
+ 
+         Users of this overlay are required to provide an external mechanism to
diff --git a/target/linux/bcm27xx/patches-5.10/950-0591-gpio-poweroff-Remember-the-old-poweroff-handler.patch b/target/linux/bcm27xx/patches-5.10/950-0591-gpio-poweroff-Remember-the-old-poweroff-handler.patch
new file mode 100644
index 0000000000..f154b3373a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0591-gpio-poweroff-Remember-the-old-poweroff-handler.patch
@@ -0,0 +1,53 @@
+From 6fe800dee9b24ef1d75a0acd5b067a1e84f2a5da Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Apr 2021 08:59:01 +0100
+Subject: [PATCH] gpio-poweroff: Remember the old poweroff handler
+
+Keeping a copy of the old poweroff handler allows it to be restored
+should this module be unloaded, but also provides a fallback if the
+power hasn't been removed when the timeout elapses.
+
+See: https://github.com/raspberrypi/rpi-eeprom/issues/330
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/power/reset/gpio-poweroff.c | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/drivers/power/reset/gpio-poweroff.c
++++ b/drivers/power/reset/gpio-poweroff.c
+@@ -24,6 +24,7 @@ static struct gpio_desc *reset_gpio;
+ static u32 timeout = DEFAULT_TIMEOUT_MS;
+ static u32 active_delay = 100;
+ static u32 inactive_delay = 100;
++static void (*old_power_off)(void);
+ 
+ static void gpio_poweroff_do_poweroff(void)
+ {
+@@ -43,6 +44,9 @@ static void gpio_poweroff_do_poweroff(vo
+ 	/* give it some time */
+ 	mdelay(timeout);
+ 
++	if (old_power_off)
++		old_power_off();
++
+ 	WARN_ON(1);
+ }
+ 
+@@ -83,6 +87,7 @@ static int gpio_poweroff_probe(struct pl
+ 		gpiod_export_link(&pdev->dev, "poweroff-gpio", reset_gpio);
+ 	}
+ 
++	old_power_off = pm_power_off;
+ 	pm_power_off = &gpio_poweroff_do_poweroff;
+ 	return 0;
+ }
+@@ -90,7 +95,7 @@ static int gpio_poweroff_probe(struct pl
+ static int gpio_poweroff_remove(struct platform_device *pdev)
+ {
+ 	if (pm_power_off == &gpio_poweroff_do_poweroff)
+-		pm_power_off = NULL;
++		pm_power_off = old_power_off;
+ 
+ 	gpiod_unexport(reset_gpio);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch b/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch
new file mode 100644
index 0000000000..455042783a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0592-drm-vc4-Allow-DBLCLK-modes-even-if-horz-timing-is-od.patch
@@ -0,0 +1,42 @@
+From 9f7c0728efb0036f6f197126aa62da40cdf4713a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 28 Apr 2021 16:14:21 +0100
+Subject: [PATCH] drm/vc4: Allow DBLCLK modes even if horz timing is
+ odd.
+
+The 2711 pixel valve can't produce odd horizontal timings, and
+checks were added to vc4_hdmi_encoder_atomic_check and
+vc4_hdmi_encoder_mode_valid to filter out/block selection of
+such modes.
+
+Modes with DRM_MODE_FLAG_DBLCLK double all the horizontal timing
+values before programming them into the PV. The PV values,
+therefore, can not be odd, and so the modes can be supported.
+
+Amend the filtering appropriately.
+
+See https://github.com/raspberrypi/linux/issues/4307
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1066,6 +1066,7 @@ static int vc4_hdmi_encoder_atomic_check
+ 	unsigned long long tmds_rate;
+ 
+ 	if (vc4_hdmi->variant->unsupported_odd_h_timings &&
++	    !(mode->flags & DRM_MODE_FLAG_DBLCLK) &&
+ 	    ((mode->hdisplay % 2) || (mode->hsync_start % 2) ||
+ 	     (mode->hsync_end % 2) || (mode->htotal % 2)))
+ 		return -EINVAL;
+@@ -1110,6 +1111,7 @@ vc4_hdmi_encoder_mode_valid(struct drm_e
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 
+ 	if (vc4_hdmi->variant->unsupported_odd_h_timings &&
++	    !(mode->flags & DRM_MODE_FLAG_DBLCLK) &&
+ 	    ((mode->hdisplay % 2) || (mode->hsync_start % 2) ||
+ 	     (mode->hsync_end % 2) || (mode->htotal % 2)))
+ 		return MODE_H_ILLEGAL;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0593-overlays-Add-ugreen-dabboard-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0593-overlays-Add-ugreen-dabboard-overlay.patch
new file mode 100644
index 0000000000..239d58cb90
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0593-overlays-Add-ugreen-dabboard-overlay.patch
@@ -0,0 +1,101 @@
+From d7a810374597774f0e01eedfc30074772f4e9f85 Mon Sep 17 00:00:00 2001
+From: Christoph <c.orth@ugreen.eu>
+Date: Wed, 28 Apr 2021 20:30:44 +0200
+Subject: [PATCH] overlays: Add ugreen-dabboard overlay
+
+This is a simple overlay based on the simple-audio-card and the dmic
+codec. It has the speciality that it is configured to use the codec
+as a master I2S device. It works for example with the Si468x DAB
+receiver on the uGreen DABBoard.
+
+See: https://github.com/raspberrypi/linux/issues/4304
+
+Signed-off-by: Christoph Orth <c.orth@ugreen.eu>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 10 ++++
+ .../dts/overlays/ugreen-dabboard-overlay.dts  | 49 +++++++++++++++++++
+ 3 files changed, 60 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/ugreen-dabboard-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -209,6 +209,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	uart4.dtbo \
+ 	uart5.dtbo \
+ 	udrc.dtbo \
++	ugreen-dabboard.dtbo \
+ 	upstream.dtbo \
+ 	upstream-pi4.dtbo \
+ 	vc4-fkms-v3d.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3130,6 +3130,16 @@ Load:   dtoverlay=udrc,<param>=<val>
+ Params: alsaname                Name of the ALSA audio device (default "udrc")
+ 
+ 
++Name:   ugreen-dabboard
++Info:   Configures the ugreen-dabboard I2S overlay
++        This is a simple overlay based on the simple-audio-card and the dmic
++        codec. It has the speciality that it is configured to use the codec
++        as a master I2S device. It works for example with the Si468x DAB
++        receiver on the uGreen DABBoard.
++Load:   dtoverlay=ugreen-dabboard,<param>=<val>
++Params: card-name               Override the default, "dabboard", card name.
++
++
+ Name:   upstream
+ Info:   Allow usage of downstream .dtb with upstream kernel. Comprises the
+         vc4-kms-v3d and dwc2 overlays.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ugreen-dabboard-overlay.dts
+@@ -0,0 +1,49 @@
++// Definitions for the ugreen dabboard I2S
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			dmic_codec: dmic-codec {
++				#sound-dai-cells = <0>;
++				compatible = "dmic-codec";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		sound_overlay: __overlay__ {
++			compatible = "simple-audio-card";
++			simple-audio-card,format = "i2s";
++			simple-audio-card,name = "dabboard";
++			simple-audio-card,bitclock-master = <&dailink0_slave>;
++			simple-audio-card,frame-master = <&dailink0_slave>;
++			simple-audio-card,widgets = "Microphone", "Microphone Jack";
++			status = "okay";
++			simple-audio-card,cpu {
++				sound-dai = <&i2s>;
++			};
++			dailink0_slave: simple-audio-card,codec {
++				#sound-dai-cells = <0>;
++				sound-dai = <&dmic_codec>;
++			};
++		};
++	};
++
++	__overrides__ {
++		card-name = <&sound_overlay>,"simple-audio-card,name";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0594-ARM-dts-bcm2711-rpi-400-Limit-MDIO-clock-speed.patch b/target/linux/bcm27xx/patches-5.10/950-0594-ARM-dts-bcm2711-rpi-400-Limit-MDIO-clock-speed.patch
new file mode 100644
index 0000000000..8f3dda341a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0594-ARM-dts-bcm2711-rpi-400-Limit-MDIO-clock-speed.patch
@@ -0,0 +1,23 @@
+From a0b9fe9f3cd79bee2f7f1755310435792942435f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 23 Apr 2021 15:02:58 +0100
+Subject: [PATCH] ARM: dts: bcm2711-rpi-400: Limit MDIO clock speed
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -616,6 +616,10 @@
+ 	brcm,disable-headphones = <1>;
+ };
+ 
++&genet_mdio {
++	clock-frequency = <1950000>;
++};
++
+ / {
+ 	__overrides__ {
+ 		act_led_gpio = <&act_led>,"gpios:4";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0595-spi-bcm2835-Increase-the-CS-limit-to-24.patch b/target/linux/bcm27xx/patches-5.10/950-0595-spi-bcm2835-Increase-the-CS-limit-to-24.patch
new file mode 100644
index 0000000000..0d4573430e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0595-spi-bcm2835-Increase-the-CS-limit-to-24.patch
@@ -0,0 +1,38 @@
+From c3fbb1e6771dabb14571552c036a049ffa470eb1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 30 Apr 2021 08:34:36 +0100
+Subject: [PATCH] spi: bcm2835: Increase the CS limit to 24
+
+Increase the maximum number of CS lines to 24, and ensure this limit is
+not exceeded.
+
+See: https://github.com/raspberrypi/linux/pull/4281
+
+Suggested-by: Joe Burmeister <joe.burmeister@devtank.co.uk>
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/spi/spi-bcm2835.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/spi/spi-bcm2835.c
++++ b/drivers/spi/spi-bcm2835.c
+@@ -28,6 +28,7 @@
+ #include <linux/gpio/consumer.h>
+ #include <linux/gpio/machine.h> /* FIXME: using chip internals */
+ #include <linux/gpio/driver.h> /* FIXME: using chip internals */
++#include <linux/of_gpio.h>
+ #include <linux/of_irq.h>
+ #include <linux/spi/spi.h>
+ 
+@@ -1299,6 +1300,11 @@ static int bcm2835_spi_probe(struct plat
+ 	struct bcm2835_spi *bs;
+ 	int err;
+ 
++	if (of_gpio_named_count(pdev->dev.of_node, "cs-gpios") >
++	    BCM2835_SPI_NUM_CS)
++		return dev_err_probe(&pdev->dev, -EINVAL,
++				     "too many chip selects\n");
++
+ 	ctlr = devm_spi_alloc_master(&pdev->dev, ALIGN(sizeof(*bs),
+ 						  dma_get_cache_alignment()));
+ 	if (!ctlr)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0596-clk-Always-clamp-the-rounded-rate.patch b/target/linux/bcm27xx/patches-5.10/950-0596-clk-Always-clamp-the-rounded-rate.patch
new file mode 100644
index 0000000000..05cbc7afae
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0596-clk-Always-clamp-the-rounded-rate.patch
@@ -0,0 +1,28 @@
+From 8f26362634435209e4f849ce2efcb2b4f48c8f5b Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 5 May 2021 15:35:34 +0200
+Subject: [PATCH] clk: Always clamp the rounded rate
+
+The current core while setting the min and max rate properly in the
+clk_request structure will not make sure that the requested rate is
+within these boundaries, leaving it to each and every driver to make
+sure it is.
+
+Add a clamp call to make sure it's always done.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/clk/clk.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/clk/clk.c
++++ b/drivers/clk/clk.c
+@@ -1316,6 +1316,8 @@ static int clk_core_determine_round_nolo
+ 	if (!core)
+ 		return 0;
+ 
++	req->rate = clamp(req->rate, req->min_rate, req->max_rate);
++
+ 	/*
+ 	 * At this point, core protection will be disabled if
+ 	 * - if the provider is not protected at all
diff --git a/target/linux/bcm27xx/patches-5.10/950-0597-drm-vc4-crtc-Pass-the-drm_atomic_state-to-config_pv.patch b/target/linux/bcm27xx/patches-5.10/950-0597-drm-vc4-crtc-Pass-the-drm_atomic_state-to-config_pv.patch
new file mode 100644
index 0000000000..8a980e63d7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0597-drm-vc4-crtc-Pass-the-drm_atomic_state-to-config_pv.patch
@@ -0,0 +1,46 @@
+From 2163477b39ed25362d5679d0cf9b843fe2c4bfbb Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 6 May 2021 17:01:46 +0200
+Subject: [PATCH] drm/vc4: crtc: Pass the drm_atomic_state to config_pv
+
+The vc4_crtc_config_pv will need to access the drm_atomic_state
+structure and its only parent function, vc4_crtc_atomic_enable already
+has access to it. Let's pass it as a parameter.
+
+Fixes: 792c3132bc1b ("drm/vc4: encoder: Add finer-grained encoder callbacks")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -305,7 +305,7 @@ static void vc4_crtc_pixelvalve_reset(st
+ 	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_FIFO_CLR);
+ }
+ 
+-static void vc4_crtc_config_pv(struct drm_crtc *crtc)
++static void vc4_crtc_config_pv(struct drm_crtc *crtc, struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+@@ -313,8 +313,8 @@ static void vc4_crtc_config_pv(struct dr
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	const struct vc4_pv_data *pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
+-	struct drm_crtc_state *state = crtc->state;
+-	struct drm_display_mode *mode = &state->adjusted_mode;
++	struct drm_crtc_state *crtc_state = crtc->state;
++	struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+ 	bool interlace = mode->flags & DRM_MODE_FLAG_INTERLACE;
+ 	u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1;
+ 	bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 ||
+@@ -540,7 +540,7 @@ static void vc4_crtc_atomic_enable(struc
+ 	if (vc4_encoder->pre_crtc_configure)
+ 		vc4_encoder->pre_crtc_configure(encoder, state);
+ 
+-	vc4_crtc_config_pv(crtc);
++	vc4_crtc_config_pv(crtc, state);
+ 
+ 	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0598-drm-vc4-crtc-Fix-vc4_get_crtc_encoder-logic.patch b/target/linux/bcm27xx/patches-5.10/950-0598-drm-vc4-crtc-Fix-vc4_get_crtc_encoder-logic.patch
new file mode 100644
index 0000000000..0b73698805
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0598-drm-vc4-crtc-Fix-vc4_get_crtc_encoder-logic.patch
@@ -0,0 +1,83 @@
+From bc75a1ca95c195508c7d9238a9dc31218ead3ad1 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 6 May 2021 17:07:07 +0200
+Subject: [PATCH] drm/vc4: crtc: Fix vc4_get_crtc_encoder logic
+
+The vc4_get_crtc_encoder function currently only works when the
+connector->state->crtc pointer is set, which is only true when the
+connector is currently enabled.
+
+However, we use it as part of the disable path as well, and our lookup
+will fail in that case, resulting in it returning a null pointer we
+can't act on.
+
+We can access the connector that used to be connected to that crtc
+though using the old connector state in the disable path.
+
+Since we want to support both the enable and disable path, we can
+support it by passing the state accessor variant as a function pointer,
+together with the atomic state.
+
+Fixes: 792c3132bc1b ("drm/vc4: encoder: Add finer-grained encoder callbacks")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 21 ++++++++++++++++-----
+ 1 file changed, 16 insertions(+), 5 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -279,14 +279,22 @@ static u32 vc4_crtc_get_fifo_full_level_
+  * allows drivers to push pixels to more than one encoder from the
+  * same CRTC.
+  */
+-static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc)
++static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
++						struct drm_atomic_state *state,
++						struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
++											 struct drm_connector *connector))
+ {
+ 	struct drm_connector *connector;
+ 	struct drm_connector_list_iter conn_iter;
+ 
+ 	drm_connector_list_iter_begin(crtc->dev, &conn_iter);
+ 	drm_for_each_connector_iter(connector, &conn_iter) {
+-		if (connector->state->crtc == crtc) {
++		struct drm_connector_state *conn_state = get_state(state, connector);
++
++		if (!conn_state)
++			continue;
++
++		if (conn_state->crtc == crtc) {
+ 			drm_connector_list_iter_end(&conn_iter);
+ 			return connector->encoder;
+ 		}
+@@ -309,7 +317,8 @@ static void vc4_crtc_config_pv(struct dr
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
++							   drm_atomic_get_new_connector_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	const struct vc4_pv_data *pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
+@@ -425,7 +434,8 @@ static int vc4_crtc_disable(struct drm_c
+ 			    struct drm_atomic_state *state,
+ 			    unsigned int channel)
+ {
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
++							   drm_atomic_get_old_connector_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	struct drm_device *dev = crtc->dev;
+@@ -525,7 +535,8 @@ static void vc4_crtc_atomic_enable(struc
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
++							   drm_atomic_get_new_connector_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 
+ 	require_hvs_enabled(dev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0599-drm-vc4-crtc-Lookup-the-encoder-from-the-register-at.patch b/target/linux/bcm27xx/patches-5.10/950-0599-drm-vc4-crtc-Lookup-the-encoder-from-the-register-at.patch
new file mode 100644
index 0000000000..8009b074a2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0599-drm-vc4-crtc-Lookup-the-encoder-from-the-register-at.patch
@@ -0,0 +1,104 @@
+From bb968f8f963e28d00fff213c62a2449c45ff19f4 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 6 May 2021 17:15:57 +0200
+Subject: [PATCH] drm/vc4: crtc: Lookup the encoder from the register
+ at boot
+
+At boot, we can't rely on the vc4_get_crtc_encoder since we don't have a
+state yet and thus will not be able to figure out which connector is
+attached to our CRTC.
+
+However, we have a muxing bit in the CRTC register we can use to get the
+encoder currently connected to the pixelvalve. We can thus read that
+register, lookup the associated register through the vc4_pv_data
+structure, and then pass it to vc4_crtc_disable so that we can perform
+the proper operations.
+
+Fixes: 875a4d536842 ("drm/vc4: drv: Disable the CRTC at boot time")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 38 ++++++++++++++++++++++++++++++----
+ 1 file changed, 34 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -431,11 +431,10 @@ static void require_hvs_enabled(struct d
+ }
+ 
+ static int vc4_crtc_disable(struct drm_crtc *crtc,
++			    struct drm_encoder *encoder,
+ 			    struct drm_atomic_state *state,
+ 			    unsigned int channel)
+ {
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+-							   drm_atomic_get_old_connector_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	struct drm_device *dev = crtc->dev;
+@@ -476,10 +475,29 @@ static int vc4_crtc_disable(struct drm_c
+ 	return 0;
+ }
+ 
++static struct drm_encoder *vc4_crtc_get_encoder_by_type(struct drm_crtc *crtc,
++							enum vc4_encoder_type type)
++{
++	struct drm_encoder *encoder;
++
++	drm_for_each_encoder(encoder, crtc->dev) {
++		struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
++
++		if (vc4_encoder->type == type)
++			return encoder;
++	}
++
++	return NULL;
++}
++
+ int vc4_crtc_disable_at_boot(struct drm_crtc *crtc)
+ {
+ 	struct drm_device *drm = crtc->dev;
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
++	enum vc4_encoder_type encoder_type;
++	const struct vc4_pv_data *pv_data;
++	struct drm_encoder *encoder;
++	unsigned encoder_sel;
+ 	int channel;
+ 
+ 	if (!(of_device_is_compatible(vc4_crtc->pdev->dev.of_node,
+@@ -498,7 +516,17 @@ int vc4_crtc_disable_at_boot(struct drm_
+ 	if (channel < 0)
+ 		return 0;
+ 
+-	return vc4_crtc_disable(crtc, NULL, channel);
++	encoder_sel = VC4_GET_FIELD(CRTC_READ(PV_CONTROL), PV_CONTROL_CLK_SELECT);
++	if (WARN_ON(encoder_sel != 0))
++		return 0;
++
++	pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
++	encoder_type = pv_data->encoder_types[encoder_sel];
++	encoder = vc4_crtc_get_encoder_by_type(crtc, encoder_type);
++	if (WARN_ON(!encoder))
++		return 0;
++
++	return vc4_crtc_disable(crtc, encoder, NULL, channel);
+ }
+ 
+ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc,
+@@ -507,6 +535,8 @@ static void vc4_crtc_atomic_disable(stru
+ 	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+ 									 crtc);
+ 	struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
++							   drm_atomic_get_old_connector_state);
+ 	struct drm_device *dev = crtc->dev;
+ 
+ 	require_hvs_enabled(dev);
+@@ -514,7 +544,7 @@ static void vc4_crtc_atomic_disable(stru
+ 	/* Disable vblank irq handling before crtc is disabled. */
+ 	drm_crtc_vblank_off(crtc);
+ 
+-	vc4_crtc_disable(crtc, state, old_vc4_state->assigned_channel);
++	vc4_crtc_disable(crtc, encoder, state, old_vc4_state->assigned_channel);
+ 
+ 	/*
+ 	 * Make sure we issue a vblank event after disabling the CRTC if
diff --git a/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch b/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch
new file mode 100644
index 0000000000..46d373b22a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0600-drm-vc4-hdmi-Simplify-the-connector-state-retrieval.patch
@@ -0,0 +1,52 @@
+From a9c640d91233d2e1b38e32644a5f53bc2de1fce0 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 29 Apr 2021 21:58:27 +0200
+Subject: [PATCH] drm/vc4: hdmi: Simplify the connector state retrieval
+
+When we have the entire DRM state, retrieving the connector state only
+requires the drm_connector pointer. Fortunately for us, we have
+allocated it as a part of the vc4_hdmi structure, so we can retrieve get
+a pointer by simply accessing our field in that structure.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 21 +++------------------
+ 1 file changed, 3 insertions(+), 18 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -851,31 +851,16 @@ static void vc4_hdmi_recenter_fifo(struc
+ 		  "VC4_HDMI_FIFO_CTL_RECENTER_DONE");
+ }
+ 
+-static struct drm_connector_state *
+-vc4_hdmi_encoder_get_connector_state(struct drm_encoder *encoder,
+-				     struct drm_atomic_state *state)
+-{
+-	struct drm_connector_state *conn_state;
+-	struct drm_connector *connector;
+-	unsigned int i;
+-
+-	for_each_new_connector_in_state(state, connector, conn_state, i) {
+-		if (conn_state->best_encoder == encoder)
+-			return conn_state;
+-	}
+-
+-	return NULL;
+-}
+-
+ static void vc4_hdmi_encoder_pre_crtc_configure(struct drm_encoder *encoder,
+ 						struct drm_atomic_state *state)
+ {
++	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++	struct drm_connector *connector = &vc4_hdmi->connector;
+ 	struct drm_connector_state *conn_state =
+-		vc4_hdmi_encoder_get_connector_state(encoder, state);
++		drm_atomic_get_new_connector_state(state, connector);
+ 	struct vc4_hdmi_connector_state *vc4_conn_state =
+ 		conn_state_to_vc4_hdmi_conn_state(conn_state);
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+-	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	unsigned long bvb_rate, pixel_rate, hsm_rate;
+ 	int ret;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0601-drm-vc4-hdmi-Rely-on-interrupts-to-handle-hotplug.patch b/target/linux/bcm27xx/patches-5.10/950-0601-drm-vc4-hdmi-Rely-on-interrupts-to-handle-hotplug.patch
new file mode 100644
index 0000000000..6f0c4fa930
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0601-drm-vc4-hdmi-Rely-on-interrupts-to-handle-hotplug.patch
@@ -0,0 +1,78 @@
+From 263d69b2c6ff1d1de6c3788d1b01760d4a1ebd9d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 29 Apr 2021 11:08:52 +0200
+Subject: [PATCH] drm/vc4: hdmi: Rely on interrupts to handle hotplug
+
+DRM currently polls for the HDMI connector status every 10s, which can
+be an issue when we connect/disconnect a display quickly or the device
+on the other end only issues a hotplug pulse (for example on EDID
+change).
+
+Switch the driver to rely on the internal controller logic for the
+BCM2711/RPi4.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 44 ++++++++++++++++++++++++++++++++++
+ 1 file changed, 44 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1689,6 +1689,46 @@ static int vc4_hdmi_audio_init(struct vc
+ 
+ }
+ 
++static irqreturn_t vc4_hdmi_hpd_irq_thread(int irq, void *priv)
++{
++	struct vc4_hdmi *vc4_hdmi = priv;
++	struct drm_device *dev = vc4_hdmi->connector.dev;
++
++	if (dev)
++		drm_kms_helper_hotplug_event(dev);
++
++	return IRQ_HANDLED;
++}
++
++static int vc4_hdmi_hotplug_init(struct vc4_hdmi *vc4_hdmi)
++{
++	struct platform_device *pdev = vc4_hdmi->pdev;
++	struct device *dev = &pdev->dev;
++	int ret;
++
++	if (vc4_hdmi->variant->external_irq_controller) {
++		ret = devm_request_threaded_irq(dev,
++						platform_get_irq_byname(pdev, "hpd-connected"),
++						NULL,
++						vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
++						"vc4 hdmi hpd connected", vc4_hdmi);
++		if (ret)
++			return ret;
++
++		ret = devm_request_threaded_irq(dev,
++						platform_get_irq_byname(pdev, "hpd-removed"),
++						NULL,
++						vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
++						"vc4 hdmi hpd disconnected", vc4_hdmi);
++		if (ret)
++			return ret;
++
++		connector->polled = DRM_CONNECTOR_POLL_HPD;
++	}
++
++	return 0;
++}
++
+ #ifdef CONFIG_DRM_VC4_HDMI_CEC
+ static irqreturn_t vc4_cec_irq_handler_rx_thread(int irq, void *priv)
+ {
+@@ -2303,6 +2343,10 @@ static int vc4_hdmi_bind(struct device *
+ 	if (ret)
+ 		goto err_destroy_encoder;
+ 
++	ret = vc4_hdmi_hotplug_init(vc4_hdmi);
++	if (ret)
++		goto err_destroy_conn;
++
+ 	ret = vc4_hdmi_cec_init(vc4_hdmi);
+ 	if (ret)
+ 		goto err_destroy_conn;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch b/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch
new file mode 100644
index 0000000000..ab461f383c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0602-drm-vc4-hdmi-Add-a-workqueue-to-set-scrambling.patch
@@ -0,0 +1,91 @@
+From c20cb28d802aa148cfa90c0682323e9d52dc0466 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 7 May 2021 15:28:21 +0200
+Subject: [PATCH] drm/vc4: hdmi: Add a workqueue to set scrambling
+
+It looks like some displays (like the LG 27UL850-W) don't enable the
+scrambling when the HDMI driver enables it. However, if we set later the
+scrambler enable bit, the display will work as expected.
+
+Let's create delayed work queue to periodically look at the display
+scrambling status, and if it's not set yet try to enable it again.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 25 +++++++++++++++++++++++++
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  2 ++
+ 2 files changed, 27 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -537,6 +537,8 @@ static bool vc4_hdmi_supports_scrambling
+ 	return true;
+ }
+ 
++#define SCRAMBLING_POLLING_DELAY_MS	1000
++
+ static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
+ {
+ 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
+@@ -553,6 +555,9 @@ static void vc4_hdmi_enable_scrambling(s
+ 
+ 	HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) |
+ 		   VC5_HDMI_SCRAMBLER_CTL_ENABLE);
++
++	queue_delayed_work(system_wq, &vc4_hdmi->scrambling_work,
++			   msecs_to_jiffies(SCRAMBLING_POLLING_DELAY_MS));
+ }
+ 
+ static void vc4_hdmi_disable_scrambling(struct drm_encoder *encoder)
+@@ -571,6 +576,9 @@ static void vc4_hdmi_disable_scrambling(
+ 	if (crtc && !vc4_hdmi_mode_needs_scrambling(&crtc->mode))
+ 		return;
+ 
++	if (delayed_work_pending(&vc4_hdmi->scrambling_work))
++		cancel_delayed_work_sync(&vc4_hdmi->scrambling_work);
++
+ 	HDMI_WRITE(HDMI_SCRAMBLER_CTL, HDMI_READ(HDMI_SCRAMBLER_CTL) &
+ 		   ~VC5_HDMI_SCRAMBLER_CTL_ENABLE);
+ 
+@@ -578,6 +586,22 @@ static void vc4_hdmi_disable_scrambling(
+ 	drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, false);
+ }
+ 
++static void vc4_hdmi_scrambling_wq(struct work_struct *work)
++{
++	struct vc4_hdmi *vc4_hdmi = container_of(to_delayed_work(work),
++						 struct vc4_hdmi,
++						 scrambling_work);
++
++	if (drm_scdc_get_scrambling_status(vc4_hdmi->ddc))
++		return;
++
++	drm_scdc_set_high_tmds_clock_ratio(vc4_hdmi->ddc, true);
++	drm_scdc_set_scrambling(vc4_hdmi->ddc, true);
++
++	queue_delayed_work(system_wq, &vc4_hdmi->scrambling_work,
++			   msecs_to_jiffies(SCRAMBLING_POLLING_DELAY_MS));
++}
++
+ static void vc4_hdmi_encoder_post_crtc_disable(struct drm_encoder *encoder,
+ 					       struct drm_atomic_state *state)
+ {
+@@ -2274,6 +2298,7 @@ static int vc4_hdmi_bind(struct device *
+ 	vc4_hdmi = devm_kzalloc(dev, sizeof(*vc4_hdmi), GFP_KERNEL);
+ 	if (!vc4_hdmi)
+ 		return -ENOMEM;
++	INIT_DELAYED_WORK(&vc4_hdmi->scrambling_work, vc4_hdmi_scrambling_wq);
+ 
+ 	dev_set_drvdata(dev, vc4_hdmi);
+ 	encoder = &vc4_hdmi->encoder.base.base;
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -131,6 +131,8 @@ struct vc4_hdmi {
+ 	struct vc4_hdmi_encoder encoder;
+ 	struct drm_connector connector;
+ 
++	struct delayed_work scrambling_work;
++
+ 	struct i2c_adapter *ddc;
+ 	void __iomem *hdmicore_regs;
+ 	void __iomem *hd_regs;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0603-vc4-drm-hdmi-Fix-missing-declaration.patch b/target/linux/bcm27xx/patches-5.10/950-0603-vc4-drm-hdmi-Fix-missing-declaration.patch
new file mode 100644
index 0000000000..7b271c3280
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0603-vc4-drm-hdmi-Fix-missing-declaration.patch
@@ -0,0 +1,21 @@
+From 68b5e1eb66bf0bdbc4ecb1987f5b0e42b017a844 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Fri, 7 May 2021 17:22:53 +0100
+Subject: [PATCH] vc4/drm: hdmi: Fix missing declaration
+
+Fixes: 671a8068ee5feae1d92e6d48027fa8de062e2af2
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1728,6 +1728,7 @@ static int vc4_hdmi_hotplug_init(struct
+ {
+ 	struct platform_device *pdev = vc4_hdmi->pdev;
+ 	struct device *dev = &pdev->dev;
++	struct drm_connector *connector = &vc4_hdmi->connector;
+ 	int ret;
+ 
+ 	if (vc4_hdmi->variant->external_irq_controller) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0604-overlays-merus-amp-remove-spi-override.patch b/target/linux/bcm27xx/patches-5.10/950-0604-overlays-merus-amp-remove-spi-override.patch
new file mode 100644
index 0000000000..6a6e4d0b5f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0604-overlays-merus-amp-remove-spi-override.patch
@@ -0,0 +1,27 @@
+From a502574b7e3283c8bf8b475b892ed6a6ddb01358 Mon Sep 17 00:00:00 2001
+From: AMuszkat <ariel.muszkat@gmail.com>
+Date: Sun, 28 Mar 2021 21:46:09 +0200
+Subject: [PATCH] overlays: merus-amp: remove spi override
+
+Signed-off-by: AMuszkat <ariel.muszkat@gmail.com>
+---
+ arch/arm/boot/dts/overlays/merus-amp-overlay.dts | 10 ----------
+ 1 file changed, 10 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/merus-amp-overlay.dts
+@@ -57,14 +57,4 @@
+ 			status = "okay";
+ 		};
+ 	};
+-
+-	fragment@4 {
+-		target = <&spi0>;
+-		frag4: __overlay__ {
+-		};
+-	};
+-
+-	__overrides__ {
+-		spioff = <&frag4>, "status=disabled";
+-	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0605-media-i2c-ov5647-Correct-pixel-array-offset.patch b/target/linux/bcm27xx/patches-5.10/950-0605-media-i2c-ov5647-Correct-pixel-array-offset.patch
new file mode 100644
index 0000000000..fbbc574912
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0605-media-i2c-ov5647-Correct-pixel-array-offset.patch
@@ -0,0 +1,25 @@
+From c4237f47536b91e894e26439353546e17c1221dc Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 11 May 2021 12:52:26 +0100
+Subject: [PATCH] media: i2c: ov5647: Correct pixel array offset
+
+The top offset in the pixel array is actually 6 (see page 3-1 of the
+OV5647 data sheet).
+
+Fixes: f2f7ad5ce5e52 ("media: i2c: ov5647: Selection compliance fixes")
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -77,7 +77,7 @@
+ #define OV5647_NATIVE_HEIGHT		1956U
+ 
+ #define OV5647_PIXEL_ARRAY_LEFT		16U
+-#define OV5647_PIXEL_ARRAY_TOP		16U
++#define OV5647_PIXEL_ARRAY_TOP		6U
+ #define OV5647_PIXEL_ARRAY_WIDTH	2592U
+ #define OV5647_PIXEL_ARRAY_HEIGHT	1944U
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0606-media-i2c-ov5647-Correct-minimum-VBLANK-value.patch b/target/linux/bcm27xx/patches-5.10/950-0606-media-i2c-ov5647-Correct-minimum-VBLANK-value.patch
new file mode 100644
index 0000000000..753d849c16
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0606-media-i2c-ov5647-Correct-minimum-VBLANK-value.patch
@@ -0,0 +1,26 @@
+From 6131e50bfae6adb5ee52ad0d08cf12bfcbf8c606 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 11 May 2021 12:57:22 +0100
+Subject: [PATCH] media: i2c: ov5647: Correct minimum VBLANK value
+
+Trial and error reveals that the minimum vblank value appears to be 24
+(the OV5647 data sheet does not give any clues). This fixes streaming
+lock-ups in full resolution mode.
+
+Fixes: 9b5a5ebedc303 ("media: i2c: ov5647: Add support for V4L2_CID_VBLANK")
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -81,7 +81,7 @@
+ #define OV5647_PIXEL_ARRAY_WIDTH	2592U
+ #define OV5647_PIXEL_ARRAY_HEIGHT	1944U
+ 
+-#define OV5647_VBLANK_MIN		4
++#define OV5647_VBLANK_MIN		24
+ #define OV5647_VTS_MAX			32767
+ 
+ #define OV5647_EXPOSURE_MIN		4
diff --git a/target/linux/bcm27xx/patches-5.10/950-0607-media-i2c-ov5647-Fix-v4l2-compliance-failure-subscri.patch b/target/linux/bcm27xx/patches-5.10/950-0607-media-i2c-ov5647-Fix-v4l2-compliance-failure-subscri.patch
new file mode 100644
index 0000000000..4a930bf745
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0607-media-i2c-ov5647-Fix-v4l2-compliance-failure-subscri.patch
@@ -0,0 +1,34 @@
+From c4a7091e7abe17e0d5a9d28fc5ad695f5ba599ae Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Wed, 12 May 2021 07:39:21 +0100
+Subject: [PATCH] media: i2c: ov5647: Fix v4l2-compliance failure
+ subscribing to events
+
+Fixes the following v4l2-compliance failure:
+
+fail: v4l2-test-controls.cpp(871): subscribe event for control 'User Controls' failed test
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/ov5647.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/media/i2c/ov5647.c
++++ b/drivers/media/i2c/ov5647.c
+@@ -31,6 +31,7 @@
+ #include <linux/videodev2.h>
+ #include <media/v4l2-ctrls.h>
+ #include <media/v4l2-device.h>
++#include <media/v4l2-event.h>
+ #include <media/v4l2-fwnode.h>
+ #include <media/v4l2-image-sizes.h>
+ #include <media/v4l2-mediabus.h>
+@@ -1039,6 +1040,8 @@ static const struct v4l2_subdev_core_ops
+ 	.g_register		= ov5647_sensor_get_register,
+ 	.s_register		= ov5647_sensor_set_register,
+ #endif
++	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
++	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+ };
+ 
+ static const struct v4l2_rect *
diff --git a/target/linux/bcm27xx/patches-5.10/950-0608-dtoverlays-Add-pinctrl-names-to-i2c0-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0608-dtoverlays-Add-pinctrl-names-to-i2c0-overlay.patch
new file mode 100644
index 0000000000..408fe54f1f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0608-dtoverlays-Add-pinctrl-names-to-i2c0-overlay.patch
@@ -0,0 +1,25 @@
+From 26715b72c201ab22e44698505969078520bddce0 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 12 May 2021 16:44:11 +0100
+Subject: [PATCH] dtoverlays: Add pinctrl-names to i2c0 overlay.
+
+Using dtoverlay=i2c0 failed to set up the pinctrl nodes as
+pinctrl-name = "default"; was missing from the i2c0if node.
+
+https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=311686&p=1864112
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c0-overlay.dts | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/arm/boot/dts/overlays/i2c0-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c0-overlay.dts
+@@ -8,6 +8,7 @@
+ 		target = <&i2c0if>;
+ 		__overlay__ {
+ 			status = "okay";
++			pinctrl-names = "default";
+ 			pinctrl-0 = <&i2c0_pins>;
+ 		};
+ 	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0609-dtoverlays-Update-__symbols__-i2c0-from-i2c0-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0609-dtoverlays-Update-__symbols__-i2c0-from-i2c0-overlay.patch
new file mode 100644
index 0000000000..7bb7f1e413
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0609-dtoverlays-Update-__symbols__-i2c0-from-i2c0-overlay.patch
@@ -0,0 +1,31 @@
+From a21652bfb50b240936124de0dbc288418106e5de Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Wed, 12 May 2021 16:47:05 +0100
+Subject: [PATCH] dtoverlays: Update /__symbols__/i2c0 from i2c0
+ overlay
+
+Update the symbol as well as the alias so that other overlays will
+then be applied against the right node.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/i2c0-overlay.dts | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/i2c0-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c0-overlay.dts
+@@ -65,6 +65,14 @@
+ 			i2c0 = "/soc/i2c@7e205000";
+ 		};
+ 	};
++
++	fragment@8 {
++		target-path = "/__symbols__";
++		__overlay__ {
++			i2c0 = "/soc/i2c@7e205000";
++		};
++	};
++
+ 	__overrides__ {
+ 		pins_0_1   = <0>,"+1-2-3-4";
+ 		pins_28_29 = <0>,"-1+2-3-4";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0610-media-rpivid-Remove-the-need-to-have-num_entry_point.patch b/target/linux/bcm27xx/patches-5.10/950-0610-media-rpivid-Remove-the-need-to-have-num_entry_point.patch
new file mode 100644
index 0000000000..7a8f2d3892
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0610-media-rpivid-Remove-the-need-to-have-num_entry_point.patch
@@ -0,0 +1,980 @@
+From 0962d9e4a57c3faa29000c63c1cb28ad39a6c80c Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 21 May 2020 11:49:37 +0100
+Subject: [PATCH] media: rpivid: Remove the need to have
+ num_entry_points set
+
+VAAPI H265 has num entry points but never sets it. Allow a VAAPI
+shim to work without requiring rewriting the VAAPI driver.
+num_entry_points can be calculated from the slice_segment_addr
+of the next slice so delay processing until we have that.
+
+Also includes some minor cosmetics.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid_h265.c | 699 +++++++++++----------
+ 1 file changed, 365 insertions(+), 334 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -202,8 +202,17 @@ struct rpivid_dec_env {
+ 	unsigned int dpbno_col;
+ 	u32 reg_slicestart;
+ 	int collocated_from_l0_flag;
+-	unsigned int wpp_entry_x;
+-	unsigned int wpp_entry_y;
++	/*
++	 * Last CTB/Tile X,Y processed by (wpp_)entry_point
++	 * Could be in _state as P0 only but needs updating where _state
++	 * is const
++	 */
++	unsigned int entry_ctb_x;
++	unsigned int entry_ctb_y;
++	unsigned int entry_tile_x;
++	unsigned int entry_tile_y;
++	unsigned int entry_qp;
++	u32 entry_slice;
+ 
+ 	u32 rpi_config2;
+ 	u32 rpi_framesize;
+@@ -239,22 +248,17 @@ struct rpivid_dec_state {
+ 	struct v4l2_ctrl_hevc_pps pps;
+ 
+ 	// Helper vars & tables derived from sps/pps
+-	unsigned int log2_ctb_size; /* log2 width of a CTB */
+-	unsigned int ctb_width; /* Width in CTBs */
+-	unsigned int ctb_height; /* Height in CTBs */
+-	unsigned int ctb_size; /* Pic area in CTBs */
+-	unsigned int num_tile_columns;
+-	unsigned int num_tile_rows;
+-	u8 column_width[member_size(struct v4l2_ctrl_hevc_pps,
+-				    column_width_minus1)];
+-	u8 row_height[member_size(struct v4l2_ctrl_hevc_pps,
+-				  row_height_minus1)];
++	unsigned int log2_ctb_size;     /* log2 width of a CTB */
++	unsigned int ctb_width;         /* Width in CTBs */
++	unsigned int ctb_height;        /* Height in CTBs */
++	unsigned int ctb_size;          /* Pic area in CTBs */
++	unsigned int tile_width;        /* Width in tiles */
++	unsigned int tile_height;       /* Height in tiles */
+ 
+ 	int *col_bd;
+ 	int *row_bd;
+ 	int *ctb_addr_rs_to_ts;
+ 	int *ctb_addr_ts_to_rs;
+-	int *tile_id;
+ 
+ 	// Aux starage for DPB
+ 	// Hold refs
+@@ -274,6 +278,12 @@ struct rpivid_dec_state {
+ 	unsigned int slice_qp;
+ 	unsigned int max_num_merge_cand; // 0 if I-slice
+ 	bool dependent_slice_segment_flag;
++
++	unsigned int start_ts;          /* slice_segment_addr -> ts */
++	unsigned int start_ctb_x;       /* CTB X,Y of start_ts */
++	unsigned int start_ctb_y;
++	unsigned int prev_ctb_x;        /* CTB X,Y of start_ts - 1 */
++	unsigned int prev_ctb_y;
+ };
+ 
+ static inline int clip_int(const int x, const int lo, const int hi)
+@@ -319,15 +329,16 @@ static int ctb_to_tile(unsigned int ctb,
+ 	return i - 1;
+ }
+ 
+-static int ctb_to_slice_w_h(unsigned int ctb, int ctb_size, int width,
+-			    unsigned int *bd, int num)
++static unsigned int ctb_to_tile_x(const struct rpivid_dec_state *const s,
++				  const unsigned int ctb_x)
+ {
+-	if (ctb < bd[num - 1])
+-		return ctb_size;
+-	else if (width % ctb_size)
+-		return width % ctb_size;
+-	else
+-		return ctb_size;
++	return ctb_to_tile(ctb_x, s->col_bd, s->tile_width);
++}
++
++static unsigned int ctb_to_tile_y(const struct rpivid_dec_state *const s,
++				  const unsigned int ctb_y)
++{
++	return ctb_to_tile(ctb_y, s->row_bd, s->tile_height);
+ }
+ 
+ static void aux_q_free(struct rpivid_ctx *const ctx,
+@@ -532,6 +543,15 @@ static void write_prob(struct rpivid_dec
+ 		p1_apb_write(de, 0x1000 + i,
+ 			     dst[i] + (dst[i + 1] << 8) + (dst[i + 2] << 16) +
+ 				     (dst[i + 3] << 24));
++
++	/*
++	 * Having written the prob array back it up
++	 * This is not always needed but is a small overhead that simplifies
++	 * (and speeds up) some multi-tile & WPP scenarios
++	 * There are no scenarios where having written a prob we ever want
++	 * a previous (non-initial) state back
++	 */
++	p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
+ }
+ 
+ static void write_scaling_factors(struct rpivid_dec_env *const de)
+@@ -552,8 +572,8 @@ static inline __u32 dma_to_axi_addr(dma_
+ static void write_bitstream(struct rpivid_dec_env *const de,
+ 			    const struct rpivid_dec_state *const s)
+ {
+-	// Note that FFmpeg removes emulation prevention bytes, so this is
+-	// matched in the configuration here.
++	// Note that FFmpeg V4L2 does not remove emulation prevention bytes,
++	// so this is matched in the configuration here.
+ 	// Whether that is the correct behaviour or not is not clear in the
+ 	// spec.
+ 	const int rpi_use_emu = 1;
+@@ -579,78 +599,26 @@ static void write_bitstream(struct rpivi
+ 
+ //////////////////////////////////////////////////////////////////////////////
+ 
+-static void write_slice(struct rpivid_dec_env *const de,
+-			const struct rpivid_dec_state *const s,
+-			const unsigned int slice_w,
+-			const unsigned int slice_h)
+-{
+-	u32 u32 = (s->sh->slice_type << 12) +
+-		  (((s->sh->flags &
+-		     V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA) != 0)
+-		   << 14) +
+-		  (((s->sh->flags &
+-		     V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA) != 0)
+-		   << 15) +
+-		  (slice_w << 17) + (slice_h << 24);
+-
+-	u32 |= (s->max_num_merge_cand << 0) + (s->nb_refs[L0] << 4) +
+-	       (s->nb_refs[L1] << 8);
+-
+-	if (s->sh->slice_type == HEVC_SLICE_B)
+-		u32 |= ((s->sh->flags &
+-			 V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO) != 0)
+-		       << 16;
+-	p1_apb_write(de, RPI_SLICE, u32);
+-}
+-
+-//////////////////////////////////////////////////////////////////////////////
+-// Tiles mode
+-
+-static void new_entry_point(struct rpivid_dec_env *const de,
+-			    const struct rpivid_dec_state *const s,
+-			    const int do_bte,
+-			    const int reset_qp_y, const int ctb_addr_ts)
++/*
++ * The slice constant part of the slice register - width and height need to
++ * be ORed in later as they are per-tile / WPP-row
++ */
++static u32 slice_reg_const(const struct rpivid_dec_state *const s)
+ {
+-	int ctb_col = s->ctb_addr_ts_to_rs[ctb_addr_ts] %
+-							de->pic_width_in_ctbs_y;
+-	int ctb_row = s->ctb_addr_ts_to_rs[ctb_addr_ts] /
+-							de->pic_width_in_ctbs_y;
+-
+-	int tile_x = ctb_to_tile(ctb_col, s->col_bd, s->num_tile_columns);
+-	int tile_y = ctb_to_tile(ctb_row, s->row_bd, s->num_tile_rows);
+-
+-	int endx = s->col_bd[tile_x + 1] - 1;
+-	int endy = s->row_bd[tile_y + 1] - 1;
+-
+-	u8 slice_w = ctb_to_slice_w_h(ctb_col, 1 << s->log2_ctb_size,
+-				      s->sps.pic_width_in_luma_samples,
+-				      s->col_bd, s->num_tile_columns);
+-	u8 slice_h = ctb_to_slice_w_h(ctb_row, 1 << s->log2_ctb_size,
+-				      s->sps.pic_height_in_luma_samples,
+-				      s->row_bd, s->num_tile_rows);
+-
+-	p1_apb_write(de, RPI_TILESTART,
+-		     s->col_bd[tile_x] + (s->row_bd[tile_y] << 16));
+-	p1_apb_write(de, RPI_TILEEND, endx + (endy << 16));
+-
+-	if (do_bte)
+-		p1_apb_write(de, RPI_BEGINTILEEND, endx + (endy << 16));
++	u32 x = (s->max_num_merge_cand << 0) |
++		(s->nb_refs[L0] << 4) |
++		(s->nb_refs[L1] << 8) |
++		(s->sh->slice_type << 12);
++
++	if (s->sh->flags & V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA)
++		x |= BIT(14);
++	if (s->sh->flags & V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA)
++		x |= BIT(15);
++	if (s->sh->slice_type == HEVC_SLICE_B &&
++	    (s->sh->flags & V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO))
++		x |= BIT(16);
+ 
+-	write_slice(de, s, slice_w, slice_h);
+-
+-	if (reset_qp_y) {
+-		unsigned int sps_qp_bd_offset =
+-			6 * s->sps.bit_depth_luma_minus8;
+-
+-		p1_apb_write(de, RPI_QP, sps_qp_bd_offset + s->slice_qp);
+-	}
+-
+-	p1_apb_write(de, RPI_MODE,
+-		     (0xFFFF << 0) + (0x0 << 16) +
+-			     ((tile_x == s->num_tile_columns - 1) << 17) +
+-			     ((tile_y == s->num_tile_rows - 1) << 18));
+-
+-	p1_apb_write(de, RPI_CONTROL, (ctb_col << 0) + (ctb_row << 16));
++	return x;
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+@@ -934,197 +902,256 @@ static void pre_slice_decode(struct rpiv
+ 		       (sh->slice_cb_qp_offset & 31)); // CMD_QPOFF
+ }
+ 
+-//////////////////////////////////////////////////////////////////////////////
+-// Write STATUS register with expected end CTU address of previous slice
+-
+-static void end_previous_slice(struct rpivid_dec_env *const de,
+-			       const struct rpivid_dec_state *const s,
+-			       const int ctb_addr_ts)
+-{
+-	int last_x =
+-		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] % de->pic_width_in_ctbs_y;
+-	int last_y =
+-		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] / de->pic_width_in_ctbs_y;
+-
+-	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
+-}
+-
+-static void wpp_pause(struct rpivid_dec_env *const de, int ctb_row)
+-{
+-	p1_apb_write(de, RPI_STATUS, (ctb_row << 18) + 0x25);
+-	p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
+-	p1_apb_write(de, RPI_MODE,
+-		     ctb_row == de->pic_height_in_ctbs_y - 1 ?
+-							0x70000 : 0x30000);
+-	p1_apb_write(de, RPI_CONTROL, (ctb_row << 16) + 2);
+-}
+-
+-static void wpp_end_previous_slice(struct rpivid_dec_env *const de,
+-				   const struct rpivid_dec_state *const s,
+-				   int ctb_addr_ts)
+-{
+-	int new_x = s->sh->slice_segment_addr % de->pic_width_in_ctbs_y;
+-	int new_y = s->sh->slice_segment_addr / de->pic_width_in_ctbs_y;
+-	int last_x =
+-		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] % de->pic_width_in_ctbs_y;
+-	int last_y =
+-		s->ctb_addr_ts_to_rs[ctb_addr_ts - 1] / de->pic_width_in_ctbs_y;
+-
+-	if (de->wpp_entry_x < 2 && (de->wpp_entry_y < new_y || new_x > 2) &&
+-	    de->pic_width_in_ctbs_y > 2)
+-		wpp_pause(de, last_y);
+-	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
+-	if (new_x == 2 || (de->pic_width_in_ctbs_y == 2 &&
+-			   de->wpp_entry_y < new_y))
+-		p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++static void write_slice(struct rpivid_dec_env *const de,
++			const struct rpivid_dec_state *const s,
++			const u32 slice_const,
++			const unsigned int ctb_col,
++			const unsigned int ctb_row)
++{
++	const unsigned int cs = (1 << s->log2_ctb_size);
++	const unsigned int w_last = s->sps.pic_width_in_luma_samples & (cs - 1);
++	const unsigned int h_last = s->sps.pic_height_in_luma_samples & (cs - 1);
++
++	p1_apb_write(de, RPI_SLICE,
++		     slice_const |
++		     ((ctb_col + 1 < s->ctb_width || !w_last ?
++				cs : w_last) << 17) |
++		     ((ctb_row + 1 < s->ctb_height || !h_last ?
++				cs : h_last) << 24));
+ }
+ 
+-//////////////////////////////////////////////////////////////////////////////
+-// Wavefront mode
++#define PAUSE_MODE_WPP  1
++#define PAUSE_MODE_TILE 0xffff
+ 
+-static void wpp_entry_point(struct rpivid_dec_env *const de,
++/*
++ * N.B. This can be called to fill in data from the previous slice so must not
++ * use any state data that may change from slice to slice (e.g. qp)
++ */
++static void new_entry_point(struct rpivid_dec_env *const de,
+ 			    const struct rpivid_dec_state *const s,
+-			    const int do_bte,
+-			    const int reset_qp_y, const int ctb_addr_ts)
+-{
+-	int ctb_size = 1 << s->log2_ctb_size;
+-	int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
+-
+-	int ctb_col = de->wpp_entry_x = ctb_addr_rs % de->pic_width_in_ctbs_y;
+-	int ctb_row = de->wpp_entry_y = ctb_addr_rs / de->pic_width_in_ctbs_y;
++			    const bool do_bte,
++			    const bool reset_qp_y,
++			    const u32 pause_mode,
++			    const unsigned int tile_x,
++			    const unsigned int tile_y,
++			    const unsigned int ctb_col,
++			    const unsigned int ctb_row,
++			    const unsigned int slice_qp,
++			    const u32 slice_const)
++{
++	const unsigned int endx = s->col_bd[tile_x + 1] - 1;
++	const unsigned int endy = (pause_mode == PAUSE_MODE_WPP) ?
++		ctb_row : s->row_bd[tile_y + 1] - 1;
+ 
+-	int endx = de->pic_width_in_ctbs_y - 1;
+-	int endy = ctb_row;
+-
+-	u8 slice_w = ctb_to_slice_w_h(ctb_col, ctb_size,
+-				      s->sps.pic_width_in_luma_samples,
+-				      s->col_bd, s->num_tile_columns);
+-	u8 slice_h = ctb_to_slice_w_h(ctb_row, ctb_size,
+-				      s->sps.pic_height_in_luma_samples,
+-				      s->row_bd, s->num_tile_rows);
+-
+-	p1_apb_write(de, RPI_TILESTART, 0);
+-	p1_apb_write(de, RPI_TILEEND, endx + (endy << 16));
++	p1_apb_write(de, RPI_TILESTART,
++		     s->col_bd[tile_x] | (s->row_bd[tile_y] << 16));
++	p1_apb_write(de, RPI_TILEEND, endx | (endy << 16));
+ 
+ 	if (do_bte)
+-		p1_apb_write(de, RPI_BEGINTILEEND, endx + (endy << 16));
++		p1_apb_write(de, RPI_BEGINTILEEND, endx | (endy << 16));
+ 
+-	write_slice(de, s, slice_w,
+-		    ctb_row == de->pic_height_in_ctbs_y - 1 ?
+-							slice_h : ctb_size);
++	write_slice(de, s, slice_const, endx, endy);
+ 
+ 	if (reset_qp_y) {
+ 		unsigned int sps_qp_bd_offset =
+ 			6 * s->sps.bit_depth_luma_minus8;
+ 
+-		p1_apb_write(de, RPI_QP, sps_qp_bd_offset + s->slice_qp);
++		p1_apb_write(de, RPI_QP, sps_qp_bd_offset + slice_qp);
+ 	}
+ 
+ 	p1_apb_write(de, RPI_MODE,
+-		     ctb_row == de->pic_height_in_ctbs_y - 1 ?
+-							0x60001 : 0x20001);
+-	p1_apb_write(de, RPI_CONTROL, (ctb_col << 0) + (ctb_row << 16));
++		     pause_mode |
++			((endx == s->ctb_width - 1) << 17) |
++			((endy == s->ctb_height - 1) << 18));
++
++	p1_apb_write(de, RPI_CONTROL, (ctb_col << 0) | (ctb_row << 16));
++
++	de->entry_tile_x = tile_x;
++	de->entry_tile_y = tile_y;
++	de->entry_ctb_x = ctb_col;
++	de->entry_ctb_y = ctb_row;
++	de->entry_qp = slice_qp;
++	de->entry_slice = slice_const;
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+ // Wavefront mode
+ 
++static void wpp_pause(struct rpivid_dec_env *const de, int ctb_row)
++{
++	p1_apb_write(de, RPI_STATUS, (ctb_row << 18) | 0x25);
++	p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++	p1_apb_write(de, RPI_MODE,
++		     ctb_row == de->pic_height_in_ctbs_y - 1 ?
++							0x70000 : 0x30000);
++	p1_apb_write(de, RPI_CONTROL, (ctb_row << 16) + 2);
++}
++
++static void wpp_entry_fill(struct rpivid_dec_env *const de,
++			   const struct rpivid_dec_state *const s,
++			   const unsigned int last_y)
++{
++	const unsigned int last_x = s->ctb_width - 1;
++
++	while (de->entry_ctb_y < last_y) {
++		/* wpp_entry_x/y set by wpp_entry_point */
++		if (s->ctb_width > 2)
++			wpp_pause(de, de->entry_ctb_y);
++		p1_apb_write(de, RPI_STATUS,
++			     (de->entry_ctb_y << 18) | (last_x << 5) | 2);
++
++		/* if width == 1 then the saved state is the init one */
++		if (s->ctb_width == 2)
++			p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++		else
++			p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
++
++		new_entry_point(de, s, false, true, PAUSE_MODE_WPP,
++				0, 0, 0, de->entry_ctb_y + 1,
++				de->entry_qp, de->entry_slice);
++	}
++}
++
++static void wpp_end_previous_slice(struct rpivid_dec_env *const de,
++				   const struct rpivid_dec_state *const s)
++{
++	wpp_entry_fill(de, s, s->prev_ctb_y);
++
++	if (de->entry_ctb_x < 2 &&
++	    (de->entry_ctb_y < s->start_ctb_y || s->start_ctb_x > 2) &&
++	    s->ctb_width > 2)
++		wpp_pause(de, s->prev_ctb_y);
++	p1_apb_write(de, RPI_STATUS,
++		     1 | (s->prev_ctb_x << 5) | (s->prev_ctb_y << 18));
++	if (s->start_ctb_x == 2 ||
++	    (s->ctb_width == 2 && de->entry_ctb_y < s->start_ctb_y))
++		p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++}
++
++/* Only main profile supported so WPP => !Tiles which makes some of the
++ * next chunk code simpler
++ */
+ static void wpp_decode_slice(struct rpivid_dec_env *const de,
+-			     const struct rpivid_dec_state *const s,
+-			     const struct v4l2_ctrl_hevc_slice_params *sh,
+-			     int ctb_addr_ts)
+-{
+-	int i, reset_qp_y = 1;
+-	int indep = !s->dependent_slice_segment_flag;
+-	int ctb_col = s->sh->slice_segment_addr % de->pic_width_in_ctbs_y;
++			     const struct rpivid_dec_state *const s)
++{
++	bool reset_qp_y = true;
++	const bool indep = !s->dependent_slice_segment_flag;
+ 
+-	if (ctb_addr_ts)
+-		wpp_end_previous_slice(de, s, ctb_addr_ts);
++	if (s->start_ts)
++		wpp_end_previous_slice(de, s);
+ 	pre_slice_decode(de, s);
+ 	write_bitstream(de, s);
+-	if (ctb_addr_ts == 0 || indep || de->pic_width_in_ctbs_y == 1)
++
++	if (!s->start_ts || indep || s->ctb_width == 1)
+ 		write_prob(de, s);
+-	else if (ctb_col == 0)
++	else if (!s->start_ctb_x)
+ 		p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
+ 	else
+-		reset_qp_y = 0;
++		reset_qp_y = false;
++
+ 	program_slicecmds(de, s->slice_idx);
+ 	new_slice_segment(de, s);
+-	wpp_entry_point(de, s, indep, reset_qp_y, ctb_addr_ts);
++	new_entry_point(de, s, indep, reset_qp_y, PAUSE_MODE_WPP,
++			0, 0, s->start_ctb_x, s->start_ctb_y,
++			s->slice_qp, slice_reg_const(s));
+ 
+-	for (i = 0; i < s->sh->num_entry_point_offsets; i++) {
+-		int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
+-		int ctb_row = ctb_addr_rs / de->pic_width_in_ctbs_y;
+-		int last_x = de->pic_width_in_ctbs_y - 1;
++	if (s->frame_end) {
++		wpp_entry_fill(de, s, s->ctb_height - 1);
++
++		if (de->entry_ctb_x < 2 && s->ctb_width > 2)
++			wpp_pause(de, s->ctb_height - 1);
+ 
+-		if (de->pic_width_in_ctbs_y > 2)
+-			wpp_pause(de, ctb_row);
+ 		p1_apb_write(de, RPI_STATUS,
+-			     (ctb_row << 18) + (last_x << 5) + 2);
+-		if (de->pic_width_in_ctbs_y == 2)
+-			p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
+-		if (de->pic_width_in_ctbs_y == 1)
+-			write_prob(de, s);
+-		else
+-			p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
+-		ctb_addr_ts += s->column_width[0];
+-		wpp_entry_point(de, s, 0, 1, ctb_addr_ts);
++			     1 | ((s->ctb_width - 1) << 5) |
++				((s->ctb_height - 1) << 18));
+ 	}
++
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+ // Tiles mode
+ 
++static void tile_entry_fill(struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s,
++			    const unsigned int last_tile_x,
++			    const unsigned int last_tile_y)
++{
++	while (de->entry_tile_y < last_tile_y ||
++	       (de->entry_tile_y == last_tile_y &&
++		de->entry_tile_x < last_tile_x)) {
++		unsigned int t_x = de->entry_tile_x;
++		unsigned int t_y = de->entry_tile_y;
++		const unsigned int last_x = s->col_bd[t_x + 1] - 1;
++		const unsigned int last_y = s->row_bd[t_y + 1] - 1;
++
++		p1_apb_write(de, RPI_STATUS,
++			     2 | (last_x << 5) | (last_y << 18));
++		p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
++
++		// Inc tile
++		if (++t_x >= s->tile_width) {
++			t_x = 0;
++			++t_y;
++		}
++
++		new_entry_point(de, s, false, true, PAUSE_MODE_TILE,
++				t_x, t_y, s->col_bd[t_x], s->row_bd[t_y],
++				de->entry_qp, de->entry_slice);
++	}
++}
++
++/*
++ * Write STATUS register with expected end CTU address of previous slice
++ */
++static void end_previous_slice(struct rpivid_dec_env *const de,
++			       const struct rpivid_dec_state *const s)
++{
++	tile_entry_fill(de, s,
++			ctb_to_tile_x(s, s->prev_ctb_x),
++			ctb_to_tile_y(s, s->prev_ctb_y));
++	p1_apb_write(de, RPI_STATUS,
++		     1 | (s->prev_ctb_x << 5) | (s->prev_ctb_y << 18));
++}
++
+ static void decode_slice(struct rpivid_dec_env *const de,
+-			 const struct rpivid_dec_state *const s,
+-			 const struct v4l2_ctrl_hevc_slice_params *const sh,
+-			 int ctb_addr_ts)
++			 const struct rpivid_dec_state *const s)
+ {
+-	int i, reset_qp_y;
++	bool reset_qp_y;
++	unsigned int tile_x = ctb_to_tile_x(s, s->start_ctb_x);
++	unsigned int tile_y = ctb_to_tile_y(s, s->start_ctb_y);
+ 
+-	if (ctb_addr_ts)
+-		end_previous_slice(de, s, ctb_addr_ts);
++	if (s->start_ts)
++		end_previous_slice(de, s);
+ 
+ 	pre_slice_decode(de, s);
+ 	write_bitstream(de, s);
+ 
+-#if DEBUG_TRACE_P1_CMD
+-	if (p1_z < 256) {
+-		v4l2_info(&de->ctx->dev->v4l2_dev,
+-			  "TS=%d, tile=%d/%d, dss=%d, flags=%#llx\n",
+-			  ctb_addr_ts, s->tile_id[ctb_addr_ts],
+-			  s->tile_id[ctb_addr_ts - 1],
+-			  s->dependent_slice_segment_flag, sh->flags);
+-	}
+-#endif
+-
+-	reset_qp_y = ctb_addr_ts == 0 ||
+-		   s->tile_id[ctb_addr_ts] != s->tile_id[ctb_addr_ts - 1] ||
+-		   !s->dependent_slice_segment_flag;
++	reset_qp_y = !s->start_ts ||
++		!s->dependent_slice_segment_flag ||
++		tile_x != ctb_to_tile_x(s, s->prev_ctb_x) ||
++		tile_y != ctb_to_tile_y(s, s->prev_ctb_y);
+ 	if (reset_qp_y)
+ 		write_prob(de, s);
+ 
+ 	program_slicecmds(de, s->slice_idx);
+ 	new_slice_segment(de, s);
+ 	new_entry_point(de, s, !s->dependent_slice_segment_flag, reset_qp_y,
+-			ctb_addr_ts);
+-
+-	for (i = 0; i < s->sh->num_entry_point_offsets; i++) {
+-		int ctb_addr_rs = s->ctb_addr_ts_to_rs[ctb_addr_ts];
+-		int ctb_col = ctb_addr_rs % de->pic_width_in_ctbs_y;
+-		int ctb_row = ctb_addr_rs / de->pic_width_in_ctbs_y;
+-		int tile_x = ctb_to_tile(ctb_col, s->col_bd,
+-					 s->num_tile_columns - 1);
+-		int tile_y =
+-			ctb_to_tile(ctb_row, s->row_bd, s->num_tile_rows - 1);
+-		int last_x = s->col_bd[tile_x + 1] - 1;
+-		int last_y = s->row_bd[tile_y + 1] - 1;
++			PAUSE_MODE_TILE,
++			tile_x, tile_y, s->start_ctb_x, s->start_ctb_y,
++			s->slice_qp, slice_reg_const(s));
+ 
++	/*
++	 * If this is the last slice then fill in the other tile entries
++	 * now, otherwise this will be done at the start of the next slice
++	 * when it will be known where this slice finishes
++	 */
++	if (s->frame_end) {
++		tile_entry_fill(de, s,
++				s->tile_width - 1,
++				s->tile_height - 1);
+ 		p1_apb_write(de, RPI_STATUS,
+-			     2 + (last_x << 5) + (last_y << 18));
+-		write_prob(de, s);
+-		ctb_addr_ts += s->column_width[tile_x] * s->row_height[tile_y];
+-		new_entry_point(de, s, 0, 1, ctb_addr_ts);
++			     1 | ((s->ctb_width - 1) << 5) |
++				((s->ctb_height - 1) << 18));
+ 	}
+ }
+ 
+@@ -1132,13 +1159,12 @@ static void decode_slice(struct rpivid_d
+ // Scaling factors
+ 
+ static void expand_scaling_list(const unsigned int size_id,
+-				const unsigned int matrix_id, u8 *const dst0,
++				u8 *const dst0,
+ 				const u8 *const src0, uint8_t dc)
+ {
+ 	u8 *d;
+ 	unsigned int x, y;
+ 
+-	// FIXME: matrix_id is unused ?
+ 	switch (size_id) {
+ 	case 0:
+ 		memcpy(dst0, src0, 16);
+@@ -1199,24 +1225,20 @@ static void populate_scaling_factors(con
+ 	unsigned int mid;
+ 
+ 	for (mid = 0; mid < 6; mid++)
+-		expand_scaling_list(0, mid,
+-				    de->scaling_factors +
++		expand_scaling_list(0, de->scaling_factors +
+ 					    scaling_factor_offsets[0][mid],
+ 				    sl->scaling_list_4x4[mid], 0);
+ 	for (mid = 0; mid < 6; mid++)
+-		expand_scaling_list(1, mid,
+-				    de->scaling_factors +
++		expand_scaling_list(1, de->scaling_factors +
+ 					    scaling_factor_offsets[1][mid],
+ 				    sl->scaling_list_8x8[mid], 0);
+ 	for (mid = 0; mid < 6; mid++)
+-		expand_scaling_list(2, mid,
+-				    de->scaling_factors +
++		expand_scaling_list(2, de->scaling_factors +
+ 					    scaling_factor_offsets[2][mid],
+ 				    sl->scaling_list_16x16[mid],
+ 				    sl->scaling_list_dc_coef_16x16[mid]);
+-	for (mid = 0; mid < 2; mid += 1)
+-		expand_scaling_list(3, mid,
+-				    de->scaling_factors +
++	for (mid = 0; mid < 2; mid++)
++		expand_scaling_list(3, de->scaling_factors +
+ 					    scaling_factor_offsets[3][mid],
+ 				    sl->scaling_list_32x32[mid],
+ 				    sl->scaling_list_dc_coef_32x32[mid]);
+@@ -1228,8 +1250,6 @@ static void free_ps_info(struct rpivid_d
+ 	s->ctb_addr_rs_to_ts = NULL;
+ 	kfree(s->ctb_addr_ts_to_rs);
+ 	s->ctb_addr_ts_to_rs = NULL;
+-	kfree(s->tile_id);
+-	s->tile_id = NULL;
+ 
+ 	kfree(s->col_bd);
+ 	s->col_bd = NULL;
+@@ -1237,10 +1257,52 @@ static void free_ps_info(struct rpivid_d
+ 	s->row_bd = NULL;
+ }
+ 
++static unsigned int tile_width(const struct rpivid_dec_state *const s,
++			       const unsigned int t_x)
++{
++	return s->col_bd[t_x + 1] - s->col_bd[t_x];
++}
++
++static unsigned int tile_height(const struct rpivid_dec_state *const s,
++				const unsigned int t_y)
++{
++	return s->row_bd[t_y + 1] - s->row_bd[t_y];
++}
++
++static void fill_rs_to_ts(struct rpivid_dec_state *const s)
++{
++	unsigned int ts = 0;
++	unsigned int t_y;
++	unsigned int tr_rs = 0;
++
++	for (t_y = 0; t_y != s->tile_height; ++t_y) {
++		const unsigned int t_h = tile_height(s, t_y);
++		unsigned int t_x;
++		unsigned int tc_rs = tr_rs;
++
++		for (t_x = 0; t_x != s->tile_width; ++t_x) {
++			const unsigned int t_w = tile_width(s, t_x);
++			unsigned int y;
++			unsigned int rs = tc_rs;
++
++			for (y = 0; y != t_h; ++y) {
++				unsigned int x;
++
++				for (x = 0; x != t_w; ++x) {
++					s->ctb_addr_rs_to_ts[rs + x] = ts;
++					s->ctb_addr_ts_to_rs[ts] = rs + x;
++					++ts;
++				}
++				rs += s->ctb_width;
++			}
++			tc_rs += t_w;
++		}
++		tr_rs += t_h * s->ctb_width;
++	}
++}
++
+ static int updated_ps(struct rpivid_dec_state *const s)
+ {
+-	unsigned int ctb_addr_rs;
+-	int j, x, y, tile_id;
+ 	unsigned int i;
+ 
+ 	free_ps_info(s);
+@@ -1259,104 +1321,49 @@ static int updated_ps(struct rpivid_dec_
+ 
+ 	// Inferred parameters
+ 
++	s->ctb_addr_rs_to_ts = kmalloc_array(s->ctb_size,
++					     sizeof(*s->ctb_addr_rs_to_ts),
++					     GFP_KERNEL);
++	s->ctb_addr_ts_to_rs = kmalloc_array(s->ctb_size,
++					     sizeof(*s->ctb_addr_ts_to_rs),
++					     GFP_KERNEL);
++
+ 	if (!(s->pps.flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED)) {
+-		s->num_tile_columns = 1;
+-		s->num_tile_rows = 1;
+-		s->column_width[0] = s->ctb_width;
+-		s->row_height[0] = s->ctb_height;
++		s->tile_width = 1;
++		s->tile_height = 1;
+ 	} else {
+-		s->num_tile_columns = s->pps.num_tile_columns_minus1 + 1;
+-		s->num_tile_rows = s->pps.num_tile_rows_minus1 + 1;
+-		for (i = 0; i < s->num_tile_columns; ++i)
+-			s->column_width[i] = s->pps.column_width_minus1[i] + 1;
+-		for (i = 0; i < s->num_tile_rows; ++i)
+-			s->row_height[i] = s->pps.row_height_minus1[i] + 1;
++		s->tile_width = s->pps.num_tile_columns_minus1 + 1;
++		s->tile_height = s->pps.num_tile_rows_minus1 + 1;
+ 	}
+ 
+-	s->col_bd = kmalloc((s->num_tile_columns + 1) * sizeof(*s->col_bd),
++	s->col_bd = kmalloc((s->tile_width + 1) * sizeof(*s->col_bd),
+ 			    GFP_KERNEL);
+-	s->row_bd = kmalloc((s->num_tile_rows + 1) * sizeof(*s->row_bd),
++	s->row_bd = kmalloc((s->tile_height + 1) * sizeof(*s->row_bd),
+ 			    GFP_KERNEL);
+ 
+ 	s->col_bd[0] = 0;
+-	for (i = 0; i < s->num_tile_columns; i++)
+-		s->col_bd[i + 1] = s->col_bd[i] + s->column_width[i];
++	for (i = 1; i < s->tile_width; i++)
++		s->col_bd[i] = s->col_bd[i - 1] +
++			s->pps.column_width_minus1[i - 1] + 1;
++	s->col_bd[s->tile_width] = s->ctb_width;
+ 
+ 	s->row_bd[0] = 0;
+-	for (i = 0; i < s->num_tile_rows; i++)
+-		s->row_bd[i + 1] = s->row_bd[i] + s->row_height[i];
++	for (i = 1; i < s->tile_height; i++)
++		s->row_bd[i] = s->row_bd[i - 1] +
++			s->pps.row_height_minus1[i - 1] + 1;
++	s->row_bd[s->tile_height] = s->ctb_height;
+ 
+-	s->ctb_addr_rs_to_ts = kmalloc_array(s->ctb_size,
+-					     sizeof(*s->ctb_addr_rs_to_ts),
+-					     GFP_KERNEL);
+-	s->ctb_addr_ts_to_rs = kmalloc_array(s->ctb_size,
+-					     sizeof(*s->ctb_addr_ts_to_rs),
+-					     GFP_KERNEL);
+-	s->tile_id = kmalloc_array(s->ctb_size, sizeof(*s->tile_id),
+-				   GFP_KERNEL);
+-
+-	for (ctb_addr_rs = 0; ctb_addr_rs < s->ctb_size; ctb_addr_rs++) {
+-		int tb_x = ctb_addr_rs % s->ctb_width;
+-		int tb_y = ctb_addr_rs / s->ctb_width;
+-		int tile_x = 0;
+-		int tile_y = 0;
+-		int val = 0;
+-
+-		for (i = 0; i < s->num_tile_columns; i++) {
+-			if (tb_x < s->col_bd[i + 1]) {
+-				tile_x = i;
+-				break;
+-			}
+-		}
+-
+-		for (i = 0; i < s->num_tile_rows; i++) {
+-			if (tb_y < s->row_bd[i + 1]) {
+-				tile_y = i;
+-				break;
+-			}
+-		}
+-
+-		for (i = 0; i < tile_x; i++)
+-			val += s->row_height[tile_y] * s->column_width[i];
+-		for (i = 0; i < tile_y; i++)
+-			val += s->ctb_width * s->row_height[i];
+-
+-		val += (tb_y - s->row_bd[tile_y]) * s->column_width[tile_x] +
+-		       tb_x - s->col_bd[tile_x];
+-
+-		s->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
+-		s->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
+-	}
+-
+-	for (j = 0, tile_id = 0; j < s->num_tile_rows; j++)
+-		for (i = 0; i < s->num_tile_columns; i++, tile_id++)
+-			for (y = s->row_bd[j]; y < s->row_bd[j + 1]; y++)
+-				for (x = s->col_bd[i];
+-				     x < s->col_bd[i + 1];
+-				     x++)
+-					s->tile_id[s->ctb_addr_rs_to_ts
+-							   [y * s->ctb_width +
+-							    x]] = tile_id;
++	fill_rs_to_ts(s);
+ 
+ 	return 0;
+ }
+ 
+-static int frame_end(struct rpivid_dev *const dev,
+-		     struct rpivid_dec_env *const de,
+-		     const struct rpivid_dec_state *const s)
+-{
+-	const unsigned int last_x = s->col_bd[s->num_tile_columns] - 1;
+-	const unsigned int last_y = s->row_bd[s->num_tile_rows] - 1;
+-	size_t cmd_size;
+-
+-	if (s->pps.flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED) {
+-		if (de->wpp_entry_x < 2 && de->pic_width_in_ctbs_y > 2)
+-			wpp_pause(de, last_y);
+-	}
+-	p1_apb_write(de, RPI_STATUS, 1 + (last_x << 5) + (last_y << 18));
+-
++static int write_cmd_buffer(struct rpivid_dev *const dev,
++			    struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s)
++{
+ 	// Copy commands out to dma buf
+-	cmd_size = de->cmd_len * sizeof(de->cmd_fifo[0]);
++	const size_t cmd_size = de->cmd_len * sizeof(de->cmd_fifo[0]);
+ 
+ 	if (!de->cmd_copy_gptr->ptr || cmd_size > de->cmd_copy_gptr->size) {
+ 		size_t cmd_alloc = round_up_size(cmd_size);
+@@ -1521,18 +1528,19 @@ static void rpivid_h265_setup(struct rpi
+ 	struct rpivid_q_aux *dpb_q_aux[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ 	struct rpivid_dec_state *const s = ctx->state;
+ 	struct vb2_queue *vq;
+-	struct rpivid_dec_env *de;
+-	int ctb_addr_ts;
++	struct rpivid_dec_env *de = ctx->dec0;
++	unsigned int prev_rs;
+ 	unsigned int i;
+ 	int use_aux;
+ 	bool slice_temporal_mvp;
+ 
++	xtrace_in(dev, de);
++
+ 	pred_weight_table = &sh->pred_weight_table;
+ 
+ 	s->frame_end =
+ 		((run->src->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF) == 0);
+ 
+-	de = ctx->dec0;
+ 	slice_temporal_mvp = (sh->flags &
+ 		   V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED);
+ 
+@@ -1662,6 +1670,13 @@ static void rpivid_h265_setup(struct rpi
+ 				  s->sps.pic_height_in_luma_samples);
+ 			goto fail;
+ 		}
++		if ((s->tile_width != 1 || s->tile_height != 1) &&
++		    (s->pps.flags &
++		     V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED)) {
++			v4l2_warn(&dev->v4l2_dev,
++				  "Tiles + WPP not supported\n");
++			goto fail;
++		}
+ 
+ 		// Fill in ref planes with our address s.t. if we mess
+ 		// up refs somehow then we still have a valid address
+@@ -1760,15 +1775,24 @@ static void rpivid_h265_setup(struct rpi
+ 	if (s->sps.flags & V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED)
+ 		populate_scaling_factors(run, de, s);
+ 
+-	ctb_addr_ts = s->ctb_addr_rs_to_ts[sh->slice_segment_addr];
++	// Calc all the random coord info to avoid repeated conversion in/out
++	s->start_ts = s->ctb_addr_rs_to_ts[sh->slice_segment_addr];
++	s->start_ctb_x = sh->slice_segment_addr % de->pic_width_in_ctbs_y;
++	s->start_ctb_y = sh->slice_segment_addr / de->pic_width_in_ctbs_y;
++	// Last CTB of previous slice
++	prev_rs = !s->start_ts ? 0 : s->ctb_addr_ts_to_rs[s->start_ts - 1];
++	s->prev_ctb_x = prev_rs % de->pic_width_in_ctbs_y;
++	s->prev_ctb_y = prev_rs / de->pic_width_in_ctbs_y;
+ 
+ 	if ((s->pps.flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED))
+-		wpp_decode_slice(de, s, sh, ctb_addr_ts);
++		wpp_decode_slice(de, s);
+ 	else
+-		decode_slice(de, s, sh, ctb_addr_ts);
++		decode_slice(de, s);
+ 
+-	if (!s->frame_end)
++	if (!s->frame_end) {
++		xtrace_ok(dev, de);
+ 		return;
++	}
+ 
+ 	// Frame end
+ 	memset(dpb_q_aux, 0,
+@@ -1776,8 +1800,9 @@ static void rpivid_h265_setup(struct rpi
+ 	/*
+ 	 * Need Aux ents for all (ref) DPB ents if temporal MV could
+ 	 * be enabled for any pic
+-	 * ** At the moment we have aux ents for all pics whether or not
+-	 *    they are ref
++	 * ** At the moment we create aux ents for all pics whether or not
++	 *    they are ref - they should then be discarded by the DPB-aux
++	 *    garbage collection code
+ 	 */
+ 	use_aux = ((s->sps.flags &
+ 		  V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED) != 0);
+@@ -1795,7 +1820,7 @@ static void rpivid_h265_setup(struct rpi
+ 	}
+ 
+ 	//        v4l2_info(&dev->v4l2_dev, "rpivid_h265_end of frame\n");
+-	if (frame_end(dev, de, s))
++	if (write_cmd_buffer(dev, de, s))
+ 		goto fail;
+ 
+ 	for (i = 0; i < sh->num_active_dpb_entries; ++i) {
+@@ -1876,6 +1901,7 @@ static void rpivid_h265_setup(struct rpi
+ 	}
+ 
+ 	de->state = RPIVID_DECODE_PHASE1;
++	xtrace_ok(dev, de);
+ 	return;
+ 
+ fail:
+@@ -1883,6 +1909,7 @@ fail:
+ 		// Actual error reporting happens in Trigger
+ 		de->state = s->frame_end ? RPIVID_DECODE_ERROR_DONE :
+ 					   RPIVID_DECODE_ERROR_CONTINUE;
++	xtrace_fail(dev, de);
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+@@ -2210,6 +2237,10 @@ static int rpivid_h265_start(struct rpiv
+ 	size_t pu_alloc;
+ 	size_t coeff_alloc;
+ 
++#if DEBUG_TRACE_P1_CMD
++	p1_z = 0;
++#endif
++
+ 	// Generate a sanitised WxH for memory alloc
+ 	// Assume HD if unset
+ 	if (w == 0)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0611-media-rpivid-Convert-to-MPLANE.patch b/target/linux/bcm27xx/patches-5.10/950-0611-media-rpivid-Convert-to-MPLANE.patch
new file mode 100644
index 0000000000..3c486f5f4e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0611-media-rpivid-Convert-to-MPLANE.patch
@@ -0,0 +1,329 @@
+From 84e8138ee002f3d0e643db45b8e27cb792c0c864 Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 11 Mar 2021 12:51:00 +0000
+Subject: [PATCH] media: rpivid: Convert to MPLANE
+
+Use multi-planar interface rather than single plane interface. This
+allows dmabufs holding compressed data to be resized.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.c       |  2 +-
+ drivers/staging/media/rpivid/rpivid.h       |  4 +-
+ drivers/staging/media/rpivid/rpivid_h265.c  |  9 ++-
+ drivers/staging/media/rpivid/rpivid_video.c | 88 ++++++++++-----------
+ drivers/staging/media/rpivid/rpivid_video.h |  4 +-
+ 5 files changed, 52 insertions(+), 55 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.c
++++ b/drivers/staging/media/rpivid/rpivid.c
+@@ -283,7 +283,7 @@ static const struct video_device rpivid_
+ 	.ioctl_ops	= &rpivid_ioctl_ops,
+ 	.minor		= -1,
+ 	.release	= video_device_release_empty,
+-	.device_caps	= V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
++	.device_caps	= V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING,
+ };
+ 
+ static const struct v4l2_m2m_ops rpivid_m2m_ops = {
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -85,8 +85,8 @@ struct rpivid_ctx {
+ 	struct v4l2_fh			fh;
+ 	struct rpivid_dev		*dev;
+ 
+-	struct v4l2_pix_format		src_fmt;
+-	struct v4l2_pix_format		dst_fmt;
++	struct v4l2_pix_format_mplane	src_fmt;
++	struct v4l2_pix_format_mplane	dst_fmt;
+ 	int dst_fmt_set;
+ 	// fatal_err is set if an error has occurred s.t. decode cannot
+ 	// continue (such as running out of CMA)
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -1613,7 +1613,7 @@ static void rpivid_h265_setup(struct rpi
+ 		de->cmd_copy_gptr = ctx->cmdbufs + 0;
+ 
+ 		de->frame_c_offset = ctx->dst_fmt.height * 128;
+-		de->frame_stride = ctx->dst_fmt.bytesperline * 128;
++		de->frame_stride = ctx->dst_fmt.plane_fmt[0].bytesperline * 128;
+ 		de->frame_addr =
+ 			vb2_dma_contig_plane_dma_addr(&run->dst->vb2_buf, 0);
+ 		de->frame_aux = NULL;
+@@ -1654,11 +1654,11 @@ static void rpivid_h265_setup(struct rpi
+ 			goto fail;
+ 		}
+ 		if (run->dst->planes[0].length <
+-		    ctx->dst_fmt.sizeimage) {
++		    ctx->dst_fmt.plane_fmt[0].sizeimage) {
+ 			v4l2_warn(&dev->v4l2_dev,
+ 				  "Capture plane[0] length (%d) < sizeimage (%d)\n",
+ 				  run->dst->planes[0].length,
+-				  ctx->dst_fmt.sizeimage);
++				  ctx->dst_fmt.plane_fmt[0].sizeimage);
+ 			goto fail;
+ 		}
+ 
+@@ -1812,7 +1812,8 @@ static void rpivid_h265_setup(struct rpi
+ 	// slices. If this changes we will need idx mapping code.
+ 	// Uses sh so here rather than trigger
+ 
+-	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
++	vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx,
++			     V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+ 
+ 	if (!vq) {
+ 		v4l2_err(&dev->v4l2_dev, "VQ gone!\n");
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -42,25 +42,27 @@ static inline unsigned int constrain2x(u
+ 			(x > y * 2) ? y : x;
+ }
+ 
+-int rpivid_prepare_src_format(struct v4l2_pix_format *pix_fmt)
++int rpivid_prepare_src_format(struct v4l2_pix_format_mplane *pix_fmt)
+ {
+ 	if (pix_fmt->pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
+ 		return -EINVAL;
+ 
+ 	/* Zero bytes per line for encoded source. */
+-	pix_fmt->bytesperline = 0;
++	pix_fmt->plane_fmt[0].bytesperline = 0;
+ 	/* Choose some minimum size since this can't be 0 */
+-	pix_fmt->sizeimage = max_t(u32, SZ_1K, pix_fmt->sizeimage);
++	pix_fmt->plane_fmt[0].sizeimage = max_t(u32, SZ_1K,
++						pix_fmt->plane_fmt[0].sizeimage);
++	pix_fmt->num_planes = 1;
+ 	pix_fmt->field = V4L2_FIELD_NONE;
+ 	return 0;
+ }
+ 
+-int rpivid_prepare_dst_format(struct v4l2_pix_format *pix_fmt)
++int rpivid_prepare_dst_format(struct v4l2_pix_format_mplane *pix_fmt)
+ {
+ 	unsigned int width = pix_fmt->width;
+ 	unsigned int height = pix_fmt->height;
+-	unsigned int sizeimage = pix_fmt->sizeimage;
+-	unsigned int bytesperline = pix_fmt->bytesperline;
++	unsigned int sizeimage = pix_fmt->plane_fmt[0].sizeimage;
++	unsigned int bytesperline = pix_fmt->plane_fmt[0].bytesperline;
+ 
+ 	switch (pix_fmt->pixelformat) {
+ 	/* For column formats set bytesperline to column height (stride2) */
+@@ -112,8 +114,9 @@ int rpivid_prepare_dst_format(struct v4l
+ 	pix_fmt->height = height;
+ 
+ 	pix_fmt->field = V4L2_FIELD_NONE;
+-	pix_fmt->bytesperline = bytesperline;
+-	pix_fmt->sizeimage = sizeimage;
++	pix_fmt->plane_fmt[0].bytesperline = bytesperline;
++	pix_fmt->plane_fmt[0].sizeimage = sizeimage;
++	pix_fmt->num_planes = 1;
+ 	return 0;
+ }
+ 
+@@ -222,12 +225,12 @@ static u32 pixelformat_from_sps(const st
+ 	return pf;
+ }
+ 
+-static struct v4l2_pix_format
++static struct v4l2_pix_format_mplane
+ rpivid_hevc_default_dst_fmt(struct rpivid_ctx * const ctx)
+ {
+ 	const struct v4l2_ctrl_hevc_sps * const sps =
+ 		rpivid_find_control_data(ctx, V4L2_CID_MPEG_VIDEO_HEVC_SPS);
+-	struct v4l2_pix_format pix_fmt = {
++	struct v4l2_pix_format_mplane pix_fmt = {
+ 		.width = sps->pic_width_in_luma_samples,
+ 		.height = sps->pic_height_in_luma_samples,
+ 		.pixelformat = pixelformat_from_sps(sps, 0)
+@@ -267,7 +270,7 @@ static int rpivid_g_fmt_vid_cap(struct f
+ 
+ 	if (!ctx->dst_fmt_set)
+ 		ctx->dst_fmt = rpivid_hevc_default_dst_fmt(ctx);
+-	f->fmt.pix = ctx->dst_fmt;
++	f->fmt.pix_mp = ctx->dst_fmt;
+ 	return 0;
+ }
+ 
+@@ -276,12 +279,12 @@ static int rpivid_g_fmt_vid_out(struct f
+ {
+ 	struct rpivid_ctx *ctx = rpivid_file2ctx(file);
+ 
+-	f->fmt.pix = ctx->src_fmt;
++	f->fmt.pix_mp = ctx->src_fmt;
+ 	return 0;
+ }
+ 
+-static inline void copy_color(struct v4l2_pix_format *d,
+-			      const struct v4l2_pix_format *s)
++static inline void copy_color(struct v4l2_pix_format_mplane *d,
++			      const struct v4l2_pix_format_mplane *s)
+ {
+ 	d->colorspace   = s->colorspace;
+ 	d->xfer_func    = s->xfer_func;
+@@ -298,12 +301,8 @@ static int rpivid_try_fmt_vid_cap(struct
+ 	u32 pixelformat;
+ 	int i;
+ 
+-	/* Reject format types we don't support */
+-	if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+-		return -EINVAL;
+-
+ 	for (i = 0; (pixelformat = pixelformat_from_sps(sps, i)) != 0; i++) {
+-		if (f->fmt.pix.pixelformat == pixelformat)
++		if (f->fmt.pix_mp.pixelformat == pixelformat)
+ 			break;
+ 	}
+ 
+@@ -317,23 +316,20 @@ static int rpivid_try_fmt_vid_cap(struct
+ 
+ 	// We don't have any way of finding out colourspace so believe
+ 	// anything we are told - take anything set in src as a default
+-	if (f->fmt.pix.colorspace == V4L2_COLORSPACE_DEFAULT)
+-		copy_color(&f->fmt.pix, &ctx->src_fmt);
++	if (f->fmt.pix_mp.colorspace == V4L2_COLORSPACE_DEFAULT)
++		copy_color(&f->fmt.pix_mp, &ctx->src_fmt);
+ 
+-	f->fmt.pix.pixelformat = pixelformat;
+-	return rpivid_prepare_dst_format(&f->fmt.pix);
++	f->fmt.pix_mp.pixelformat = pixelformat;
++	return rpivid_prepare_dst_format(&f->fmt.pix_mp);
+ }
+ 
+ static int rpivid_try_fmt_vid_out(struct file *file, void *priv,
+ 				  struct v4l2_format *f)
+ {
+-	if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+-		return -EINVAL;
+-
+-	if (rpivid_prepare_src_format(&f->fmt.pix)) {
++	if (rpivid_prepare_src_format(&f->fmt.pix_mp)) {
+ 		// Set default src format
+-		f->fmt.pix.pixelformat = RPIVID_SRC_PIXELFORMAT_DEFAULT;
+-		rpivid_prepare_src_format(&f->fmt.pix);
++		f->fmt.pix_mp.pixelformat = RPIVID_SRC_PIXELFORMAT_DEFAULT;
++		rpivid_prepare_src_format(&f->fmt.pix_mp);
+ 	}
+ 	return 0;
+ }
+@@ -353,7 +349,7 @@ static int rpivid_s_fmt_vid_cap(struct f
+ 	if (ret)
+ 		return ret;
+ 
+-	ctx->dst_fmt = f->fmt.pix;
++	ctx->dst_fmt = f->fmt.pix_mp;
+ 	ctx->dst_fmt_set = 1;
+ 
+ 	return 0;
+@@ -374,14 +370,14 @@ static int rpivid_s_fmt_vid_out(struct f
+ 	if (ret)
+ 		return ret;
+ 
+-	ctx->src_fmt = f->fmt.pix;
++	ctx->src_fmt = f->fmt.pix_mp;
+ 	ctx->dst_fmt_set = 0;  // Setting src invalidates dst
+ 
+ 	vq->subsystem_flags |=
+ 		VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF;
+ 
+ 	/* Propagate colorspace information to capture. */
+-	copy_color(&ctx->dst_fmt, &f->fmt.pix);
++	copy_color(&ctx->dst_fmt, &f->fmt.pix_mp);
+ 	return 0;
+ }
+ 
+@@ -389,14 +385,14 @@ const struct v4l2_ioctl_ops rpivid_ioctl
+ 	.vidioc_querycap		= rpivid_querycap,
+ 
+ 	.vidioc_enum_fmt_vid_cap	= rpivid_enum_fmt_vid_cap,
+-	.vidioc_g_fmt_vid_cap		= rpivid_g_fmt_vid_cap,
+-	.vidioc_try_fmt_vid_cap		= rpivid_try_fmt_vid_cap,
+-	.vidioc_s_fmt_vid_cap		= rpivid_s_fmt_vid_cap,
++	.vidioc_g_fmt_vid_cap_mplane	= rpivid_g_fmt_vid_cap,
++	.vidioc_try_fmt_vid_cap_mplane	= rpivid_try_fmt_vid_cap,
++	.vidioc_s_fmt_vid_cap_mplane	= rpivid_s_fmt_vid_cap,
+ 
+ 	.vidioc_enum_fmt_vid_out	= rpivid_enum_fmt_vid_out,
+-	.vidioc_g_fmt_vid_out		= rpivid_g_fmt_vid_out,
+-	.vidioc_try_fmt_vid_out		= rpivid_try_fmt_vid_out,
+-	.vidioc_s_fmt_vid_out		= rpivid_s_fmt_vid_out,
++	.vidioc_g_fmt_vid_out_mplane	= rpivid_g_fmt_vid_out,
++	.vidioc_try_fmt_vid_out_mplane	= rpivid_try_fmt_vid_out,
++	.vidioc_s_fmt_vid_out_mplane	= rpivid_s_fmt_vid_out,
+ 
+ 	.vidioc_reqbufs			= v4l2_m2m_ioctl_reqbufs,
+ 	.vidioc_querybuf		= v4l2_m2m_ioctl_querybuf,
+@@ -421,7 +417,7 @@ static int rpivid_queue_setup(struct vb2
+ 			      struct device *alloc_devs[])
+ {
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+-	struct v4l2_pix_format *pix_fmt;
++	struct v4l2_pix_format_mplane *pix_fmt;
+ 
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ 		pix_fmt = &ctx->src_fmt;
+@@ -429,10 +425,10 @@ static int rpivid_queue_setup(struct vb2
+ 		pix_fmt = &ctx->dst_fmt;
+ 
+ 	if (*nplanes) {
+-		if (sizes[0] < pix_fmt->sizeimage)
++		if (sizes[0] < pix_fmt->plane_fmt[0].sizeimage)
+ 			return -EINVAL;
+ 	} else {
+-		sizes[0] = pix_fmt->sizeimage;
++		sizes[0] = pix_fmt->plane_fmt[0].sizeimage;
+ 		*nplanes = 1;
+ 	}
+ 
+@@ -471,17 +467,17 @@ static int rpivid_buf_prepare(struct vb2
+ {
+ 	struct vb2_queue *vq = vb->vb2_queue;
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+-	struct v4l2_pix_format *pix_fmt;
++	struct v4l2_pix_format_mplane *pix_fmt;
+ 
+ 	if (V4L2_TYPE_IS_OUTPUT(vq->type))
+ 		pix_fmt = &ctx->src_fmt;
+ 	else
+ 		pix_fmt = &ctx->dst_fmt;
+ 
+-	if (vb2_plane_size(vb, 0) < pix_fmt->sizeimage)
++	if (vb2_plane_size(vb, 0) < pix_fmt->plane_fmt[0].sizeimage)
+ 		return -EINVAL;
+ 
+-	vb2_set_plane_payload(vb, 0, pix_fmt->sizeimage);
++	vb2_set_plane_payload(vb, 0, pix_fmt->plane_fmt[0].sizeimage);
+ 
+ 	return 0;
+ }
+@@ -567,7 +563,7 @@ int rpivid_queue_init(void *priv, struct
+ 	struct rpivid_ctx *ctx = priv;
+ 	int ret;
+ 
+-	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
++	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ 	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ 	src_vq->drv_priv = ctx;
+ 	src_vq->buf_struct_size = sizeof(struct rpivid_buffer);
+@@ -584,7 +580,7 @@ int rpivid_queue_init(void *priv, struct
+ 	if (ret)
+ 		return ret;
+ 
+-	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
++	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ 	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+ 	dst_vq->drv_priv = ctx;
+ 	dst_vq->buf_struct_size = sizeof(struct rpivid_buffer);
+--- a/drivers/staging/media/rpivid/rpivid_video.h
++++ b/drivers/staging/media/rpivid/rpivid_video.h
+@@ -24,7 +24,7 @@ extern const struct v4l2_ioctl_ops rpivi
+ 
+ int rpivid_queue_init(void *priv, struct vb2_queue *src_vq,
+ 		      struct vb2_queue *dst_vq);
+-int rpivid_prepare_src_format(struct v4l2_pix_format *pix_fmt);
+-int rpivid_prepare_dst_format(struct v4l2_pix_format *pix_fmt);
++int rpivid_prepare_src_format(struct v4l2_pix_format_mplane *pix_fmt);
++int rpivid_prepare_dst_format(struct v4l2_pix_format_mplane *pix_fmt);
+ 
+ #endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0612-media-rpivid-Add-an-enable-count-to-irq-claim-Qs.patch b/target/linux/bcm27xx/patches-5.10/950-0612-media-rpivid-Add-an-enable-count-to-irq-claim-Qs.patch
new file mode 100644
index 0000000000..00dd34c1fc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0612-media-rpivid-Add-an-enable-count-to-irq-claim-Qs.patch
@@ -0,0 +1,234 @@
+From 8b6aa431b277cc3c49c0c8be2b49b395d29325cf Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 11 Mar 2021 18:43:15 +0000
+Subject: [PATCH] media: rpivid: Add an enable count to irq claim Qs
+
+Add an enable count to the irq Q structures to allow the irq logic to
+block further callbacks if resources associated with the irq are not
+yet available.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.h    |   2 +
+ drivers/staging/media/rpivid/rpivid_hw.c | 118 +++++++++++++++--------
+ drivers/staging/media/rpivid/rpivid_hw.h |   3 +
+ 3 files changed, 85 insertions(+), 38 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -151,6 +151,8 @@ struct rpivid_hw_irq_ctrl {
+ 	struct rpivid_hw_irq_ent *irq;
+ 	/* Non-zero => do not start a new job - outer layer sched pending */
+ 	int no_sched;
++	/* Enable count. -1 always OK, 0 do not sched, +ve shed & count down */
++	int enable;
+ 	/* Thread CB requested */
+ 	bool thread_reqed;
+ };
+--- a/drivers/staging/media/rpivid/rpivid_hw.c
++++ b/drivers/staging/media/rpivid/rpivid_hw.c
+@@ -42,35 +42,62 @@ static void pre_irq(struct rpivid_dev *d
+ 	ient->cb = cb;
+ 	ient->v = v;
+ 
+-	// Not sure this lock is actually required
+ 	spin_lock_irqsave(&ictl->lock, flags);
+ 	ictl->irq = ient;
++	ictl->no_sched++;
+ 	spin_unlock_irqrestore(&ictl->lock, flags);
+ }
+ 
+-static void sched_claim(struct rpivid_dev * const dev,
+-			struct rpivid_hw_irq_ctrl * const ictl)
++/* Should be called from inside ictl->lock */
++static inline bool sched_enabled(const struct rpivid_hw_irq_ctrl * const ictl)
+ {
+-	for (;;) {
+-		struct rpivid_hw_irq_ent *ient = NULL;
+-		unsigned long flags;
++	return ictl->no_sched <= 0 && ictl->enable;
++}
+ 
+-		spin_lock_irqsave(&ictl->lock, flags);
++/* Should be called from inside ictl->lock & after checking sched_enabled() */
++static inline void set_claimed(struct rpivid_hw_irq_ctrl * const ictl)
++{
++	if (ictl->enable > 0)
++		--ictl->enable;
++	ictl->no_sched = 1;
++}
+ 
+-		if (--ictl->no_sched <= 0) {
+-			ient = ictl->claim;
+-			if (!ictl->irq && ient) {
+-				ictl->claim = ient->next;
+-				ictl->no_sched = 1;
+-			}
+-		}
++/* Should be called from inside ictl->lock */
++static struct rpivid_hw_irq_ent *get_sched(struct rpivid_hw_irq_ctrl * const ictl)
++{
++	struct rpivid_hw_irq_ent *ient;
+ 
+-		spin_unlock_irqrestore(&ictl->lock, flags);
++	if (!sched_enabled(ictl))
++		return NULL;
++
++	ient = ictl->claim;
++	if (!ient)
++		return NULL;
++	ictl->claim = ient->next;
++
++	set_claimed(ictl);
++	return ient;
++}
+ 
+-		if (!ient)
+-			break;
++/* Run a callback & check to see if there is anything else to run */
++static void sched_cb(struct rpivid_dev * const dev,
++		     struct rpivid_hw_irq_ctrl * const ictl,
++		     struct rpivid_hw_irq_ent *ient)
++{
++	while (ient) {
++		unsigned long flags;
+ 
+ 		ient->cb(dev, ient->v);
++
++		spin_lock_irqsave(&ictl->lock, flags);
++
++		/* Always dec no_sched after cb exec - must have been set
++		 * on entry to cb
++		 */
++		--ictl->no_sched;
++		ient = get_sched(ictl);
++
++		spin_unlock_irqrestore(&ictl->lock, flags);
+ 	}
+ }
+ 
+@@ -84,7 +111,7 @@ static void pre_thread(struct rpivid_dev
+ 	ient->v = v;
+ 	ictl->irq = ient;
+ 	ictl->thread_reqed = true;
+-	ictl->no_sched++;
++	ictl->no_sched++;	/* This is unwound in do_thread */
+ }
+ 
+ // Called in irq context
+@@ -96,17 +123,10 @@ static void do_irq(struct rpivid_dev * c
+ 
+ 	spin_lock_irqsave(&ictl->lock, flags);
+ 	ient = ictl->irq;
+-	if (ient) {
+-		ictl->no_sched++;
+-		ictl->irq = NULL;
+-	}
++	ictl->irq = NULL;
+ 	spin_unlock_irqrestore(&ictl->lock, flags);
+ 
+-	if (ient) {
+-		ient->cb(dev, ient->v);
+-
+-		sched_claim(dev, ictl);
+-	}
++	sched_cb(dev, ictl, ient);
+ }
+ 
+ static void do_claim(struct rpivid_dev * const dev,
+@@ -127,7 +147,7 @@ static void do_claim(struct rpivid_dev *
+ 		ictl->tail->next = ient;
+ 		ictl->tail = ient;
+ 		ient = NULL;
+-	} else if (ictl->no_sched || ictl->irq) {
++	} else if (!sched_enabled(ictl)) {
+ 		// Empty Q but other activity in progress so Q
+ 		ictl->claim = ient;
+ 		ictl->tail = ient;
+@@ -135,16 +155,34 @@ static void do_claim(struct rpivid_dev *
+ 	} else {
+ 		// Nothing else going on - schedule immediately and
+ 		// prevent anything else scheduling claims
+-		ictl->no_sched = 1;
++		set_claimed(ictl);
+ 	}
+ 
+ 	spin_unlock_irqrestore(&ictl->lock, flags);
+ 
+-	if (ient) {
+-		ient->cb(dev, ient->v);
++	sched_cb(dev, ictl, ient);
++}
+ 
+-		sched_claim(dev, ictl);
+-	}
++/* Enable n claims.
++ * n < 0   set to unlimited (default on init)
++ * n = 0   if previously unlimited then disable otherwise nop
++ * n > 0   if previously unlimited then set to n enables
++ *         otherwise add n enables
++ * The enable count is automatically decremented every time a claim is run
++ */
++static void do_enable_claim(struct rpivid_dev * const dev,
++			    int n,
++			    struct rpivid_hw_irq_ctrl * const ictl)
++{
++	unsigned long flags;
++	struct rpivid_hw_irq_ent *ient;
++
++	spin_lock_irqsave(&ictl->lock, flags);
++	ictl->enable = n < 0 ? -1 : ictl->enable <= 0 ? n : ictl->enable + n;
++	ient = get_sched(ictl);
++	spin_unlock_irqrestore(&ictl->lock, flags);
++
++	sched_cb(dev, ictl, ient);
+ }
+ 
+ static void ictl_init(struct rpivid_hw_irq_ctrl * const ictl)
+@@ -154,6 +192,8 @@ static void ictl_init(struct rpivid_hw_i
+ 	ictl->tail = NULL;
+ 	ictl->irq = NULL;
+ 	ictl->no_sched = 0;
++	ictl->enable = -1;
++	ictl->thread_reqed = false;
+ }
+ 
+ static void ictl_uninit(struct rpivid_hw_irq_ctrl * const ictl)
+@@ -203,11 +243,7 @@ static void do_thread(struct rpivid_dev
+ 
+ 	spin_unlock_irqrestore(&ictl->lock, flags);
+ 
+-	if (ient) {
+-		ient->cb(dev, ient->v);
+-
+-		sched_claim(dev, ictl);
+-	}
++	sched_cb(dev, ictl, ient);
+ }
+ 
+ static irqreturn_t rpivid_irq_thread(int irq, void *data)
+@@ -231,6 +267,12 @@ void rpivid_hw_irq_active1_thread(struct
+ 	pre_thread(dev, ient, thread_cb, ctx, &dev->ic_active1);
+ }
+ 
++void rpivid_hw_irq_active1_enable_claim(struct rpivid_dev *dev,
++					int n)
++{
++	do_enable_claim(dev, n, &dev->ic_active1);
++}
++
+ void rpivid_hw_irq_active1_claim(struct rpivid_dev *dev,
+ 				 struct rpivid_hw_irq_ent *ient,
+ 				 rpivid_irq_callback ready_cb, void *ctx)
+--- a/drivers/staging/media/rpivid/rpivid_hw.h
++++ b/drivers/staging/media/rpivid/rpivid_hw.h
+@@ -272,6 +272,9 @@ static inline void apb_write_vc_len(cons
+ 		ARG_IC_ICTRL_ACTIVE1_INT_SET    |\
+ 		ARG_IC_ICTRL_ACTIVE2_INT_SET)
+ 
++/* Regulate claim Q */
++void rpivid_hw_irq_active1_enable_claim(struct rpivid_dev *dev,
++					int n);
+ /* Auto release once all CBs called */
+ void rpivid_hw_irq_active1_claim(struct rpivid_dev *dev,
+ 				 struct rpivid_hw_irq_ent *ient,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0613-RFC-media-Add-media_request_-pin-unpin-API.patch b/target/linux/bcm27xx/patches-5.10/950-0613-RFC-media-Add-media_request_-pin-unpin-API.patch
new file mode 100644
index 0000000000..250d25dca8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0613-RFC-media-Add-media_request_-pin-unpin-API.patch
@@ -0,0 +1,94 @@
+From 739b9c6a80058d1aaeb66fdfe2910662f7f411ad Mon Sep 17 00:00:00 2001
+From: Ezequiel Garcia <ezequiel@collabora.com>
+Date: Sun, 21 Mar 2021 16:38:54 -0300
+Subject: [PATCH] RFC: media: Add media_request_{pin,unpin} API
+
+This is probably not the API we will want to add, but it
+should show what semantics are needed by drivers.
+
+The goal is to allow the OUTPUT (aka source) buffer and the
+controls associated to a request to be released from the request,
+and in particular return the OUTPUT buffer back to userspace,
+without signalling the media request fd.
+
+This is useful for devices that are able to pre-process
+the OUTPUT buffer, therefore able to release it before
+the decoding is finished. These drivers should signal
+the media request fd only after the CAPTURE buffer is done.
+
+Tested-by: John Cox <jc@kynesim.co.uk>
+Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
+---
+ drivers/media/mc/mc-request.c | 35 +++++++++++++++++++++++++++++++++++
+ include/media/media-request.h | 12 ++++++++++++
+ 2 files changed, 47 insertions(+)
+
+--- a/drivers/media/mc/mc-request.c
++++ b/drivers/media/mc/mc-request.c
+@@ -504,3 +504,38 @@ unlock:
+ 		media_request_put(req);
+ }
+ EXPORT_SYMBOL_GPL(media_request_object_complete);
++
++void media_request_pin(struct media_request *req)
++{
++	unsigned long flags;
++
++	spin_lock_irqsave(&req->lock, flags);
++	if (WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED))
++		goto unlock;
++	req->num_incomplete_objects++;
++unlock:
++	spin_unlock_irqrestore(&req->lock, flags);
++}
++EXPORT_SYMBOL_GPL(media_request_pin);
++
++void media_request_unpin(struct media_request *req)
++{
++	unsigned long flags;
++	bool completed = false;
++
++	spin_lock_irqsave(&req->lock, flags);
++	if (WARN_ON(!req->num_incomplete_objects) ||
++	    WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED))
++		goto unlock;
++
++	if (!--req->num_incomplete_objects) {
++		req->state = MEDIA_REQUEST_STATE_COMPLETE;
++		wake_up_interruptible_all(&req->poll_wait);
++		completed = true;
++	}
++unlock:
++	spin_unlock_irqrestore(&req->lock, flags);
++	if (completed)
++		media_request_put(req);
++}
++EXPORT_SYMBOL_GPL(media_request_unpin);
+--- a/include/media/media-request.h
++++ b/include/media/media-request.h
+@@ -189,6 +189,10 @@ static inline void media_request_get(str
+  */
+ void media_request_put(struct media_request *req);
+ 
++void media_request_pin(struct media_request *req);
++
++void media_request_unpin(struct media_request *req);
++
+ /**
+  * media_request_get_by_fd - Get a media request by fd
+  *
+@@ -228,6 +232,14 @@ static inline void media_request_put(str
+ {
+ }
+ 
++static inline void media_request_pin(struct media_request *req)
++{
++}
++
++static inline void media_request_unpin(struct media_request *req)
++{
++}
++
+ static inline struct media_request *
+ media_request_get_by_fd(struct media_device *mdev, int request_fd)
+ {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0614-media-rpivid-Add-a-Pass0-to-accumulate-slices-and-re.patch b/target/linux/bcm27xx/patches-5.10/950-0614-media-rpivid-Add-a-Pass0-to-accumulate-slices-and-re.patch
new file mode 100644
index 0000000000..afa8aacce0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0614-media-rpivid-Add-a-Pass0-to-accumulate-slices-and-re.patch
@@ -0,0 +1,1049 @@
+From a1902958d144d55309a1074f74fc9b3494d3042f Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 11 Mar 2021 19:08:00 +0000
+Subject: [PATCH] media: rpivid: Add a Pass0 to accumulate slices and
+ rework job finish
+
+Due to overheads in assembling controls and requests it is worth having
+the slice assembly phase separate from the h/w pass1 processing. Create
+a queue to service pass1 rather than have the pass1 finished callback
+trigger the next slice job.
+
+This requires a rework of the logic that splits up the buffer and
+request done events. This code contains two ways of doing that, we use
+Ezequiel Garcias <ezequiel@collabora.com> solution, but expect that
+in the future this will be handled by the framework in a cleaner manner.
+
+Fix up the handling of some of the memory exhaustion crashes uncovered
+in the process of writing this code.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/media/v4l2-core/v4l2-mem2mem.c     |   2 -
+ drivers/staging/media/rpivid/rpivid.c      |  11 +-
+ drivers/staging/media/rpivid/rpivid.h      |  20 +-
+ drivers/staging/media/rpivid/rpivid_dec.c  |  32 +-
+ drivers/staging/media/rpivid/rpivid_h265.c | 432 ++++++++++++++++-----
+ drivers/staging/media/rpivid/rpivid_hw.c   |   8 +-
+ 6 files changed, 374 insertions(+), 131 deletions(-)
+
+--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
++++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
+@@ -492,8 +492,6 @@ void v4l2_m2m_job_finish(struct v4l2_m2m
+ 	 * holding capture buffers. Those should use
+ 	 * v4l2_m2m_buf_done_and_job_finish() instead.
+ 	 */
+-	WARN_ON(m2m_ctx->out_q_ctx.q.subsystem_flags &
+-		VB2_V4L2_FL_SUPPORTS_M2M_HOLD_CAPTURE_BUF);
+ 	spin_lock_irqsave(&m2m_dev->job_spinlock, flags);
+ 	schedule_next = _v4l2_m2m_job_finish(m2m_dev, m2m_ctx);
+ 	spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags);
+--- a/drivers/staging/media/rpivid/rpivid.c
++++ b/drivers/staging/media/rpivid/rpivid.c
+@@ -79,17 +79,24 @@ static const struct rpivid_control rpivi
+ 
+ #define rpivid_ctrls_COUNT	ARRAY_SIZE(rpivid_ctrls)
+ 
+-void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id)
++struct v4l2_ctrl *rpivid_find_ctrl(struct rpivid_ctx *ctx, u32 id)
+ {
+ 	unsigned int i;
+ 
+ 	for (i = 0; ctx->ctrls[i]; i++)
+ 		if (ctx->ctrls[i]->id == id)
+-			return ctx->ctrls[i]->p_cur.p;
++			return ctx->ctrls[i];
+ 
+ 	return NULL;
+ }
+ 
++void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id)
++{
++	struct v4l2_ctrl *const ctrl = rpivid_find_ctrl(ctx, id);
++
++	return !ctrl ? NULL : ctrl->p_cur.p;
++}
++
+ static int rpivid_init_ctrls(struct rpivid_dev *dev, struct rpivid_ctx *ctx)
+ {
+ 	struct v4l2_ctrl_handler *hdl = &ctx->hdl;
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -24,6 +24,10 @@
+ 
+ #define OPT_DEBUG_POLL_IRQ  0
+ 
++#define RPIVID_DEC_ENV_COUNT 6
++#define RPIVID_P1BUF_COUNT 3
++#define RPIVID_P2BUF_COUNT 3
++
+ #define RPIVID_NAME			"rpivid"
+ 
+ #define RPIVID_CAPABILITY_UNTILED	BIT(0)
+@@ -45,6 +49,7 @@ struct rpivid_control {
+ };
+ 
+ struct rpivid_h265_run {
++	u32 slice_ents;
+ 	const struct v4l2_ctrl_hevc_sps			*sps;
+ 	const struct v4l2_ctrl_hevc_pps			*pps;
+ 	const struct v4l2_ctrl_hevc_slice_params	*slice_params;
+@@ -64,7 +69,6 @@ struct rpivid_buffer {
+ 
+ struct rpivid_dec_state;
+ struct rpivid_dec_env;
+-#define RPIVID_DEC_ENV_COUNT 3
+ 
+ struct rpivid_gptr {
+ 	size_t size;
+@@ -79,7 +83,6 @@ typedef void (*rpivid_irq_callback)(stru
+ struct rpivid_q_aux;
+ #define RPIVID_AUX_ENT_COUNT VB2_MAX_FRAME
+ 
+-#define RPIVID_P2BUF_COUNT 2
+ 
+ struct rpivid_ctx {
+ 	struct v4l2_fh			fh;
+@@ -108,11 +111,13 @@ struct rpivid_ctx {
+ 
+ 	struct rpivid_dec_env *dec_pool;
+ 
+-	/* Some of these should be in dev */
+-	struct rpivid_gptr bitbufs[1];  /* Will be 2 */
+-	struct rpivid_gptr cmdbufs[1];  /* Will be 2 */
++	unsigned int p1idx;
++	atomic_t p1out;
++	struct rpivid_gptr bitbufs[RPIVID_P1BUF_COUNT];
++	struct rpivid_gptr cmdbufs[RPIVID_P1BUF_COUNT];
++
++	/* *** Should be in dev *** */
+ 	unsigned int p2idx;
+-	atomic_t p2out;
+ 	struct rpivid_gptr pu_bufs[RPIVID_P2BUF_COUNT];
+ 	struct rpivid_gptr coeff_bufs[RPIVID_P2BUF_COUNT];
+ 
+@@ -141,6 +146,8 @@ struct rpivid_variant {
+ 
+ struct rpivid_hw_irq_ent;
+ 
++#define RPIVID_ICTL_ENABLE_UNLIMITED (-1)
++
+ struct rpivid_hw_irq_ctrl {
+ 	/* Spinlock protecting claim and tail */
+ 	spinlock_t lock;
+@@ -182,6 +189,7 @@ struct rpivid_dev {
+ 
+ extern struct rpivid_dec_ops rpivid_dec_ops_h265;
+ 
++struct v4l2_ctrl *rpivid_find_ctrl(struct rpivid_ctx *ctx, u32 id);
+ void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id);
+ 
+ #endif
+--- a/drivers/staging/media/rpivid/rpivid_dec.c
++++ b/drivers/staging/media/rpivid/rpivid_dec.c
+@@ -21,8 +21,8 @@
+ 
+ void rpivid_device_run(void *priv)
+ {
+-	struct rpivid_ctx *ctx = priv;
+-	struct rpivid_dev *dev = ctx->dev;
++	struct rpivid_ctx *const ctx = priv;
++	struct rpivid_dev *const dev = ctx->dev;
+ 	struct rpivid_run run = {};
+ 	struct media_request *src_req;
+ 
+@@ -32,19 +32,17 @@ void rpivid_device_run(void *priv)
+ 	if (!run.src || !run.dst) {
+ 		v4l2_err(&dev->v4l2_dev, "%s: Missing buffer: src=%p, dst=%p\n",
+ 			 __func__, run.src, run.dst);
+-		/* We are stuffed - this probably won't dig us out of our
+-		 * current situation but it is better than nothing
+-		 */
+-		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-						 VB2_BUF_STATE_ERROR);
+-		return;
++		goto fail;
+ 	}
+ 
+-	/* Apply request(s) controls if needed. */
++	/* Apply request(s) controls */
+ 	src_req = run.src->vb2_buf.req_obj.req;
++	if (!src_req) {
++		v4l2_err(&dev->v4l2_dev, "%s: Missing request\n", __func__);
++		goto fail;
++	}
+ 
+-	if (src_req)
+-		v4l2_ctrl_request_setup(src_req, &ctx->hdl);
++	v4l2_ctrl_request_setup(src_req, &ctx->hdl);
+ 
+ 	switch (ctx->src_fmt.pixelformat) {
+ 	case V4L2_PIX_FMT_HEVC_SLICE:
+@@ -70,10 +68,14 @@ void rpivid_device_run(void *priv)
+ 
+ 	dev->dec_ops->setup(ctx, &run);
+ 
+-	/* Complete request(s) controls if needed. */
+-
+-	if (src_req)
+-		v4l2_ctrl_request_complete(src_req, &ctx->hdl);
++	/* Complete request(s) controls */
++	v4l2_ctrl_request_complete(src_req, &ctx->hdl);
+ 
+ 	dev->dec_ops->trigger(ctx);
++	return;
++
++fail:
++	/* We really shouldn't get here but tidy up what we can */
++	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
++					 VB2_BUF_STATE_ERROR);
+ }
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -22,6 +22,8 @@
+ #define DEBUG_TRACE_P1_CMD 0
+ #define DEBUG_TRACE_EXECUTION 0
+ 
++#define USE_REQUEST_PIN 1
++
+ #if DEBUG_TRACE_EXECUTION
+ #define xtrace_in(dev_, de_)\
+ 	v4l2_info(&(dev_)->v4l2_dev, "%s[%d]: in\n",   __func__,\
+@@ -192,8 +194,6 @@ struct rpivid_dec_env {
+ 	unsigned int decode_order;
+ 	int p1_status;		/* P1 status - what to realloc */
+ 
+-	struct rpivid_dec_env *phase_wait_q_next;
+-
+ 	struct rpi_cmd *cmd_fifo;
+ 	unsigned int cmd_len, cmd_max;
+ 	unsigned int num_slice_msgs;
+@@ -219,6 +219,7 @@ struct rpivid_dec_env {
+ 	u32 rpi_currpoc;
+ 
+ 	struct vb2_v4l2_buffer *frame_buf; // Detached dest buffer
++	struct vb2_v4l2_buffer *src_buf;   // Detached src buffer
+ 	unsigned int frame_c_offset;
+ 	unsigned int frame_stride;
+ 	dma_addr_t frame_addr;
+@@ -235,9 +236,15 @@ struct rpivid_dec_env {
+ 	size_t bit_copy_len;
+ 	struct rpivid_gptr *cmd_copy_gptr;
+ 
+-	u16 slice_msgs[2 * HEVC_MAX_REFS * 8 + 3];
++#define SLICE_MSGS_MAX (2 * HEVC_MAX_REFS * 8 + 3)
++	u16 slice_msgs[SLICE_MSGS_MAX];
+ 	u8 scaling_factors[NUM_SCALING_FACTORS];
+ 
++#if USE_REQUEST_PIN
++	struct media_request *req_pin;
++#else
++	struct media_request_object *req_obj;
++#endif
+ 	struct rpivid_hw_irq_ent irq_ent;
+ };
+ 
+@@ -286,6 +293,17 @@ struct rpivid_dec_state {
+ 	unsigned int prev_ctb_y;
+ };
+ 
++#if !USE_REQUEST_PIN
++static void dst_req_obj_release(struct media_request_object *object)
++{
++	kfree(object);
++}
++
++static const struct media_request_object_ops dst_req_obj_ops = {
++	.release = dst_req_obj_release,
++};
++#endif
++
+ static inline int clip_int(const int x, const int lo, const int hi)
+ {
+ 	return x < lo ? lo : x > hi ? hi : x;
+@@ -298,15 +316,48 @@ static inline int clip_int(const int x,
+ static int p1_z;
+ #endif
+ 
++static int cmds_check_space(struct rpivid_dec_env *const de, unsigned int n)
++{
++	struct rpi_cmd *a;
++	unsigned int newmax;
++
++	if (n > 0x100000) {
++		v4l2_err(&de->ctx->dev->v4l2_dev,
++			 "%s: n %u implausible\n", __func__, n);
++		return -ENOMEM;
++	}
++
++	if (de->cmd_len + n <= de->cmd_max)
++		return 0;
++
++	newmax = 2 << log2_size(de->cmd_len + n);
++
++	a = krealloc(de->cmd_fifo, newmax * sizeof(struct rpi_cmd),
++		     GFP_KERNEL);
++	if (!a) {
++		v4l2_err(&de->ctx->dev->v4l2_dev,
++			 "Failed cmd buffer realloc from %u to %u\n",
++			 de->cmd_max, newmax);
++		return -ENOMEM;
++	}
++	v4l2_info(&de->ctx->dev->v4l2_dev,
++		  "cmd buffer realloc from %u to %u\n", de->cmd_max, newmax);
++
++	de->cmd_fifo = a;
++	de->cmd_max = newmax;
++	return 0;
++}
++
+ // ???? u16 addr - put in u32
+-static int p1_apb_write(struct rpivid_dec_env *const de, const u16 addr,
+-			const u32 data)
++static void p1_apb_write(struct rpivid_dec_env *const de, const u16 addr,
++			 const u32 data)
+ {
+-	if (de->cmd_len == de->cmd_max)
+-		de->cmd_fifo =
+-			krealloc(de->cmd_fifo,
+-				 (de->cmd_max *= 2) * sizeof(struct rpi_cmd),
+-				 GFP_KERNEL);
++	if (de->cmd_len >= de->cmd_max) {
++		v4l2_err(&de->ctx->dev->v4l2_dev,
++			 "%s: Overflow @ %d\n", __func__, de->cmd_len);
++		return;
++	}
++
+ 	de->cmd_fifo[de->cmd_len].addr = addr;
+ 	de->cmd_fifo[de->cmd_len].data = data;
+ 
+@@ -316,8 +367,7 @@ static int p1_apb_write(struct rpivid_de
+ 			  de->cmd_len, addr, data);
+ 	}
+ #endif
+-
+-	return de->cmd_len++;
++	de->cmd_len++;
+ }
+ 
+ static int ctb_to_tile(unsigned int ctb, unsigned int *bd, int num)
+@@ -511,6 +561,7 @@ static const u8 prob_init[3][156] = {
+ 	},
+ };
+ 
++#define CMDS_WRITE_PROB ((RPI_PROB_ARRAY_SIZE / 4) + 1)
+ static void write_prob(struct rpivid_dec_env *const de,
+ 		       const struct rpivid_dec_state *const s)
+ {
+@@ -554,6 +605,7 @@ static void write_prob(struct rpivid_dec
+ 	p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
+ }
+ 
++#define CMDS_WRITE_SCALING_FACTORS NUM_SCALING_FACTORS
+ static void write_scaling_factors(struct rpivid_dec_env *const de)
+ {
+ 	int i;
+@@ -569,8 +621,9 @@ static inline __u32 dma_to_axi_addr(dma_
+ 	return (__u32)(a >> 6);
+ }
+ 
+-static void write_bitstream(struct rpivid_dec_env *const de,
+-			    const struct rpivid_dec_state *const s)
++#define CMDS_WRITE_BITSTREAM 4
++static int write_bitstream(struct rpivid_dec_env *const de,
++			   const struct rpivid_dec_state *const s)
+ {
+ 	// Note that FFmpeg V4L2 does not remove emulation prevention bytes,
+ 	// so this is matched in the configuration here.
+@@ -584,6 +637,13 @@ static void write_bitstream(struct rpivi
+ 	if (s->src_addr != 0) {
+ 		addr = s->src_addr + offset;
+ 	} else {
++		if (len + de->bit_copy_len > de->bit_copy_gptr->size) {
++			v4l2_warn(&de->ctx->dev->v4l2_dev,
++				  "Bit copy buffer overflow: size=%zu, offset=%zu, len=%u\n",
++				  de->bit_copy_gptr->size,
++				  de->bit_copy_len, len);
++			return -ENOMEM;
++		}
+ 		memcpy(de->bit_copy_gptr->ptr + de->bit_copy_len,
+ 		       s->src_buf + offset, len);
+ 		addr = de->bit_copy_gptr->addr + de->bit_copy_len;
+@@ -595,6 +655,7 @@ static void write_bitstream(struct rpivi
+ 	p1_apb_write(de, RPI_BFNUM, len);
+ 	p1_apb_write(de, RPI_BFCONTROL, offset + (1 << 7)); // Stop
+ 	p1_apb_write(de, RPI_BFCONTROL, offset + (rpi_use_emu << 6));
++	return 0;
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+@@ -623,6 +684,7 @@ static u32 slice_reg_const(const struct
+ 
+ //////////////////////////////////////////////////////////////////////////////
+ 
++#define CMDS_NEW_SLICE_SEGMENT (4 + CMDS_WRITE_SCALING_FACTORS)
+ static void new_slice_segment(struct rpivid_dec_env *const de,
+ 			      const struct rpivid_dec_state *const s)
+ {
+@@ -706,6 +768,7 @@ static void msg_slice(struct rpivid_dec_
+ 	de->slice_msgs[de->num_slice_msgs++] = msg;
+ }
+ 
++#define CMDS_PROGRAM_SLICECMDS (1 + SLICE_MSGS_MAX)
+ static void program_slicecmds(struct rpivid_dec_env *const de,
+ 			      const int sliceid)
+ {
+@@ -902,6 +965,7 @@ static void pre_slice_decode(struct rpiv
+ 		       (sh->slice_cb_qp_offset & 31)); // CMD_QPOFF
+ }
+ 
++#define CMDS_WRITE_SLICE 1
+ static void write_slice(struct rpivid_dec_env *const de,
+ 			const struct rpivid_dec_state *const s,
+ 			const u32 slice_const,
+@@ -927,6 +991,7 @@ static void write_slice(struct rpivid_de
+  * N.B. This can be called to fill in data from the previous slice so must not
+  * use any state data that may change from slice to slice (e.g. qp)
+  */
++#define CMDS_NEW_ENTRY_POINT (6 + CMDS_WRITE_SLICE)
+ static void new_entry_point(struct rpivid_dec_env *const de,
+ 			    const struct rpivid_dec_state *const s,
+ 			    const bool do_bte,
+@@ -977,6 +1042,7 @@ static void new_entry_point(struct rpivi
+ //////////////////////////////////////////////////////////////////////////////
+ // Wavefront mode
+ 
++#define CMDS_WPP_PAUSE 4
+ static void wpp_pause(struct rpivid_dec_env *const de, int ctb_row)
+ {
+ 	p1_apb_write(de, RPI_STATUS, (ctb_row << 18) | 0x25);
+@@ -987,12 +1053,19 @@ static void wpp_pause(struct rpivid_dec_
+ 	p1_apb_write(de, RPI_CONTROL, (ctb_row << 16) + 2);
+ }
+ 
+-static void wpp_entry_fill(struct rpivid_dec_env *const de,
+-			   const struct rpivid_dec_state *const s,
+-			   const unsigned int last_y)
++#define CMDS_WPP_ENTRY_FILL_1 (CMDS_WPP_PAUSE + 2 + CMDS_NEW_ENTRY_POINT)
++static int wpp_entry_fill(struct rpivid_dec_env *const de,
++			  const struct rpivid_dec_state *const s,
++			  const unsigned int last_y)
+ {
++	int rv;
+ 	const unsigned int last_x = s->ctb_width - 1;
+ 
++	rv = cmds_check_space(de, CMDS_WPP_ENTRY_FILL_1 *
++				  (last_y - de->entry_ctb_y));
++	if (rv)
++		return rv;
++
+ 	while (de->entry_ctb_y < last_y) {
+ 		/* wpp_entry_x/y set by wpp_entry_point */
+ 		if (s->ctb_width > 2)
+@@ -1010,12 +1083,21 @@ static void wpp_entry_fill(struct rpivid
+ 				0, 0, 0, de->entry_ctb_y + 1,
+ 				de->entry_qp, de->entry_slice);
+ 	}
++	return 0;
+ }
+ 
+-static void wpp_end_previous_slice(struct rpivid_dec_env *const de,
+-				   const struct rpivid_dec_state *const s)
++static int wpp_end_previous_slice(struct rpivid_dec_env *const de,
++				  const struct rpivid_dec_state *const s)
+ {
+-	wpp_entry_fill(de, s, s->prev_ctb_y);
++	int rv;
++
++	rv = wpp_entry_fill(de, s, s->prev_ctb_y);
++	if (rv)
++		return rv;
++
++	rv = cmds_check_space(de, CMDS_WPP_PAUSE + 2);
++	if (rv)
++		return rv;
+ 
+ 	if (de->entry_ctb_x < 2 &&
+ 	    (de->entry_ctb_y < s->start_ctb_y || s->start_ctb_x > 2) &&
+@@ -1026,21 +1108,38 @@ static void wpp_end_previous_slice(struc
+ 	if (s->start_ctb_x == 2 ||
+ 	    (s->ctb_width == 2 && de->entry_ctb_y < s->start_ctb_y))
+ 		p1_apb_write(de, RPI_TRANSFER, PROB_BACKUP);
++	return 0;
+ }
+ 
+ /* Only main profile supported so WPP => !Tiles which makes some of the
+  * next chunk code simpler
+  */
+-static void wpp_decode_slice(struct rpivid_dec_env *const de,
+-			     const struct rpivid_dec_state *const s)
++static int wpp_decode_slice(struct rpivid_dec_env *const de,
++			    const struct rpivid_dec_state *const s)
+ {
+ 	bool reset_qp_y = true;
+ 	const bool indep = !s->dependent_slice_segment_flag;
++	int rv;
+ 
+-	if (s->start_ts)
+-		wpp_end_previous_slice(de, s);
++	if (s->start_ts) {
++		rv = wpp_end_previous_slice(de, s);
++		if (rv)
++			return rv;
++	}
+ 	pre_slice_decode(de, s);
+-	write_bitstream(de, s);
++
++	rv = cmds_check_space(de,
++			      CMDS_WRITE_BITSTREAM +
++				CMDS_WRITE_PROB +
++				CMDS_PROGRAM_SLICECMDS +
++				CMDS_NEW_SLICE_SEGMENT +
++				CMDS_NEW_ENTRY_POINT);
++	if (rv)
++		return rv;
++
++	rv = write_bitstream(de, s);
++	if (rv)
++		return rv;
+ 
+ 	if (!s->start_ts || indep || s->ctb_width == 1)
+ 		write_prob(de, s);
+@@ -1056,7 +1155,13 @@ static void wpp_decode_slice(struct rpiv
+ 			s->slice_qp, slice_reg_const(s));
+ 
+ 	if (s->frame_end) {
+-		wpp_entry_fill(de, s, s->ctb_height - 1);
++		rv = wpp_entry_fill(de, s, s->ctb_height - 1);
++		if (rv)
++			return rv;
++
++		rv = cmds_check_space(de, CMDS_WPP_PAUSE + 1);
++		if (rv)
++			return rv;
+ 
+ 		if (de->entry_ctb_x < 2 && s->ctb_width > 2)
+ 			wpp_pause(de, s->ctb_height - 1);
+@@ -1065,25 +1170,32 @@ static void wpp_decode_slice(struct rpiv
+ 			     1 | ((s->ctb_width - 1) << 5) |
+ 				((s->ctb_height - 1) << 18));
+ 	}
+-
++	return 0;
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+ // Tiles mode
+ 
+-static void tile_entry_fill(struct rpivid_dec_env *const de,
+-			    const struct rpivid_dec_state *const s,
+-			    const unsigned int last_tile_x,
+-			    const unsigned int last_tile_y)
++// Guarantees 1 cmd entry free on exit
++static int tile_entry_fill(struct rpivid_dec_env *const de,
++			   const struct rpivid_dec_state *const s,
++			   const unsigned int last_tile_x,
++			   const unsigned int last_tile_y)
+ {
+ 	while (de->entry_tile_y < last_tile_y ||
+ 	       (de->entry_tile_y == last_tile_y &&
+ 		de->entry_tile_x < last_tile_x)) {
++		int rv;
+ 		unsigned int t_x = de->entry_tile_x;
+ 		unsigned int t_y = de->entry_tile_y;
+ 		const unsigned int last_x = s->col_bd[t_x + 1] - 1;
+ 		const unsigned int last_y = s->row_bd[t_y + 1] - 1;
+ 
++		// One more than needed here
++		rv = cmds_check_space(de, CMDS_NEW_ENTRY_POINT + 3);
++		if (rv)
++			return rv;
++
+ 		p1_apb_write(de, RPI_STATUS,
+ 			     2 | (last_x << 5) | (last_y << 18));
+ 		p1_apb_write(de, RPI_TRANSFER, PROB_RELOAD);
+@@ -1098,33 +1210,55 @@ static void tile_entry_fill(struct rpivi
+ 				t_x, t_y, s->col_bd[t_x], s->row_bd[t_y],
+ 				de->entry_qp, de->entry_slice);
+ 	}
++	return 0;
+ }
+ 
+ /*
+  * Write STATUS register with expected end CTU address of previous slice
+  */
+-static void end_previous_slice(struct rpivid_dec_env *const de,
+-			       const struct rpivid_dec_state *const s)
++static int end_previous_slice(struct rpivid_dec_env *const de,
++			      const struct rpivid_dec_state *const s)
+ {
+-	tile_entry_fill(de, s,
+-			ctb_to_tile_x(s, s->prev_ctb_x),
+-			ctb_to_tile_y(s, s->prev_ctb_y));
++	int rv;
++
++	rv = tile_entry_fill(de, s,
++			     ctb_to_tile_x(s, s->prev_ctb_x),
++			     ctb_to_tile_y(s, s->prev_ctb_y));
++	if (rv)
++		return rv;
++
+ 	p1_apb_write(de, RPI_STATUS,
+ 		     1 | (s->prev_ctb_x << 5) | (s->prev_ctb_y << 18));
++	return 0;
+ }
+ 
+-static void decode_slice(struct rpivid_dec_env *const de,
+-			 const struct rpivid_dec_state *const s)
++static int decode_slice(struct rpivid_dec_env *const de,
++			const struct rpivid_dec_state *const s)
+ {
+ 	bool reset_qp_y;
+ 	unsigned int tile_x = ctb_to_tile_x(s, s->start_ctb_x);
+ 	unsigned int tile_y = ctb_to_tile_y(s, s->start_ctb_y);
++	int rv;
+ 
+-	if (s->start_ts)
+-		end_previous_slice(de, s);
++	if (s->start_ts) {
++		rv = end_previous_slice(de, s);
++		if (rv)
++			return rv;
++	}
++
++	rv = cmds_check_space(de,
++			      CMDS_WRITE_BITSTREAM +
++				CMDS_WRITE_PROB +
++				CMDS_PROGRAM_SLICECMDS +
++				CMDS_NEW_SLICE_SEGMENT +
++				CMDS_NEW_ENTRY_POINT);
++	if (rv)
++		return rv;
+ 
+ 	pre_slice_decode(de, s);
+-	write_bitstream(de, s);
++	rv = write_bitstream(de, s);
++	if (rv)
++		return rv;
+ 
+ 	reset_qp_y = !s->start_ts ||
+ 		!s->dependent_slice_segment_flag ||
+@@ -1146,13 +1280,16 @@ static void decode_slice(struct rpivid_d
+ 	 * when it will be known where this slice finishes
+ 	 */
+ 	if (s->frame_end) {
+-		tile_entry_fill(de, s,
+-				s->tile_width - 1,
+-				s->tile_height - 1);
++		rv = tile_entry_fill(de, s,
++				     s->tile_width - 1,
++				     s->tile_height - 1);
++		if (rv)
++			return rv;
+ 		p1_apb_write(de, RPI_STATUS,
+ 			     1 | ((s->ctb_width - 1) << 5) |
+ 				((s->ctb_height - 1) << 18));
+ 	}
++	return 0;
+ }
+ 
+ //////////////////////////////////////////////////////////////////////////////
+@@ -1524,7 +1661,7 @@ static void rpivid_h265_setup(struct rpi
+ 	struct rpivid_dev *const dev = ctx->dev;
+ 	const struct v4l2_ctrl_hevc_slice_params *const sh =
+ 						run->h265.slice_params;
+-	const struct v4l2_hevc_pred_weight_table *pred_weight_table;
++//	const struct v4l2_hevc_pred_weight_table *pred_weight_table;
+ 	struct rpivid_q_aux *dpb_q_aux[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ 	struct rpivid_dec_state *const s = ctx->state;
+ 	struct vb2_queue *vq;
+@@ -1532,11 +1669,12 @@ static void rpivid_h265_setup(struct rpi
+ 	unsigned int prev_rs;
+ 	unsigned int i;
+ 	int use_aux;
++	int rv;
+ 	bool slice_temporal_mvp;
+ 
+ 	xtrace_in(dev, de);
+ 
+-	pred_weight_table = &sh->pred_weight_table;
++//	pred_weight_table = &sh->pred_weight_table;
+ 
+ 	s->frame_end =
+ 		((run->src->flags & V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF) == 0);
+@@ -1608,9 +1746,9 @@ static void rpivid_h265_setup(struct rpi
+ 		de->cmd_len = 0;
+ 		de->dpbno_col = ~0U;
+ 
+-		de->bit_copy_gptr = ctx->bitbufs + 0;
++		de->bit_copy_gptr = ctx->bitbufs + ctx->p1idx;
+ 		de->bit_copy_len = 0;
+-		de->cmd_copy_gptr = ctx->cmdbufs + 0;
++		de->cmd_copy_gptr = ctx->cmdbufs + ctx->p1idx;
+ 
+ 		de->frame_c_offset = ctx->dst_fmt.height * 128;
+ 		de->frame_stride = ctx->dst_fmt.plane_fmt[0].bytesperline * 128;
+@@ -1727,6 +1865,9 @@ static void rpivid_h265_setup(struct rpi
+ 			bits_alloc = wxh < 983040 ? wxh * 3 / 4 :
+ 				wxh < 983040 * 2 ? 983040 * 3 / 4 :
+ 				wxh * 3 / 8;
++			/* Allow for bit depth */
++			bits_alloc += (bits_alloc *
++				       s->sps.bit_depth_luma_minus8) / 8;
+ 			bits_alloc = round_up_size(bits_alloc);
+ 
+ 			if (gptr_alloc(dev, de->bit_copy_gptr,
+@@ -1743,18 +1884,35 @@ static void rpivid_h265_setup(struct rpi
+ 		}
+ 	}
+ 
+-	// Pre calc a few things
+-	s->src_addr =
+-		!s->frame_end ?
+-			0 :
+-			vb2_dma_contig_plane_dma_addr(&run->src->vb2_buf, 0);
+-	s->src_buf = s->src_addr != 0 ? NULL :
+-					vb2_plane_vaddr(&run->src->vb2_buf, 0);
++	// Either map src buffer or use directly
++	s->src_addr = 0;
++	s->src_buf = NULL;
++
++	if (run->src->planes[0].bytesused < (sh->bit_size + 7) / 8) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Bit size %d > bytesused %d\n",
++			  sh->bit_size, run->src->planes[0].bytesused);
++		goto fail;
++	}
++	if (sh->data_bit_offset >= sh->bit_size ||
++	    sh->bit_size - sh->data_bit_offset < 8) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Bit size %d < Bit offset %d + 8\n",
++			  sh->bit_size, sh->data_bit_offset);
++		goto fail;
++	}
++
++	if (s->frame_end)
++		s->src_addr = vb2_dma_contig_plane_dma_addr(&run->src->vb2_buf,
++							    0);
++	if (!s->src_addr)
++		s->src_buf = vb2_plane_vaddr(&run->src->vb2_buf, 0);
+ 	if (!s->src_addr && !s->src_buf) {
+ 		v4l2_err(&dev->v4l2_dev, "Failed to map src buffer\n");
+ 		goto fail;
+ 	}
+ 
++	// Pre calc a few things
+ 	s->sh = sh;
+ 	s->slice_qp = 26 + s->pps.init_qp_minus26 + s->sh->slice_qp_delta;
+ 	s->max_num_merge_cand = sh->slice_type == HEVC_SLICE_I ?
+@@ -1785,9 +1943,11 @@ static void rpivid_h265_setup(struct rpi
+ 	s->prev_ctb_y = prev_rs / de->pic_width_in_ctbs_y;
+ 
+ 	if ((s->pps.flags & V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED))
+-		wpp_decode_slice(de, s);
++		rv = wpp_decode_slice(de, s);
+ 	else
+-		decode_slice(de, s);
++		rv = decode_slice(de, s);
++	if (rv)
++		goto fail;
+ 
+ 	if (!s->frame_end) {
+ 		xtrace_ok(dev, de);
+@@ -1945,29 +2105,28 @@ static int check_status(const struct rpi
+ 	return -1;
+ }
+ 
+-static void cb_phase2(struct rpivid_dev *const dev, void *v)
++static void phase2_cb(struct rpivid_dev *const dev, void *v)
+ {
+ 	struct rpivid_dec_env *const de = v;
+-	struct rpivid_ctx *const ctx = de->ctx;
+ 
+ 	xtrace_in(dev, de);
+ 
+-	v4l2_m2m_cap_buf_return(dev->m2m_dev, ctx->fh.m2m_ctx, de->frame_buf,
+-				VB2_BUF_STATE_DONE);
+-	de->frame_buf = NULL;
++	/* Done with buffers - allow new P1 */
++	rpivid_hw_irq_active1_enable_claim(dev, 1);
+ 
+-	/* Delete de before finish as finish might immediately trigger a reuse
+-	 * of de
+-	 */
+-	dec_env_delete(de);
++	v4l2_m2m_buf_done(de->frame_buf, VB2_BUF_STATE_DONE);
++	de->frame_buf = NULL;
+ 
+-	if (atomic_add_return(-1, &ctx->p2out) >= RPIVID_P2BUF_COUNT - 1) {
+-		xtrace_fin(dev, de);
+-		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-						 VB2_BUF_STATE_DONE);
+-	}
++#if USE_REQUEST_PIN
++	media_request_unpin(de->req_pin);
++	de->req_pin = NULL;
++#else
++	media_request_object_complete(de->req_obj);
++	de->req_obj = NULL;
++#endif
+ 
+ 	xtrace_ok(dev, de);
++	dec_env_delete(de);
+ }
+ 
+ static void phase2_claimed(struct rpivid_dev *const dev, void *v)
+@@ -2023,7 +2182,7 @@ static void phase2_claimed(struct rpivid
+ 	//	   de->ctx->colmvbuf.addr, de->ctx->colmvbuf.addr +
+ 	//	   de->ctx->colmvbuf.size);
+ 
+-	rpivid_hw_irq_active2_irq(dev, &de->irq_ent, cb_phase2, de);
++	rpivid_hw_irq_active2_irq(dev, &de->irq_ent, phase2_cb, de);
+ 
+ 	apb_write_final(dev, RPI_NUMROWS, de->pic_height_in_ctbs_y);
+ 
+@@ -2032,6 +2191,39 @@ static void phase2_claimed(struct rpivid
+ 
+ static void phase1_claimed(struct rpivid_dev *const dev, void *v);
+ 
++// release any and all objects associated with de
++// and reenable phase 1 if required
++static void phase1_err_fin(struct rpivid_dev *const dev,
++			   struct rpivid_ctx *const ctx,
++			   struct rpivid_dec_env *const de)
++{
++	/* Return all detached buffers */
++	if (de->src_buf)
++		v4l2_m2m_buf_done(de->src_buf, VB2_BUF_STATE_ERROR);
++	de->src_buf = NULL;
++	if (de->frame_buf)
++		v4l2_m2m_buf_done(de->frame_buf, VB2_BUF_STATE_ERROR);
++	de->frame_buf = NULL;
++#if USE_REQUEST_PIN
++	if (de->req_pin)
++		media_request_unpin(de->req_pin);
++	de->req_pin = NULL;
++#else
++	if (de->req_obj)
++		media_request_object_complete(de->req_obj);
++	de->req_obj = NULL;
++#endif
++
++	dec_env_delete(de);
++
++	/* Reenable phase 0 if we were blocking */
++	if (atomic_add_return(-1, &ctx->p1out) >= RPIVID_P1BUF_COUNT - 1)
++		v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
++
++	/* Done with P1-P2 buffers - allow new P1 */
++	rpivid_hw_irq_active1_enable_claim(dev, 1);
++}
++
+ static void phase1_thread(struct rpivid_dev *const dev, void *v)
+ {
+ 	struct rpivid_dec_env *const de = v;
+@@ -2076,15 +2268,12 @@ fail:
+ 			 __func__);
+ 		ctx->fatal_err = 1;
+ 	}
+-	dec_env_delete(de);
+-	xtrace_fin(dev, de);
+-	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-					 VB2_BUF_STATE_ERROR);
+ 	xtrace_fail(dev, de);
++	phase1_err_fin(dev, ctx, de);
+ }
+ 
+ /* Always called in irq context (this is good) */
+-static void cb_phase1(struct rpivid_dev *const dev, void *v)
++static void phase1_cb(struct rpivid_dev *const dev, void *v)
+ {
+ 	struct rpivid_dec_env *const de = v;
+ 	struct rpivid_ctx *const ctx = de->ctx;
+@@ -2092,6 +2281,7 @@ static void cb_phase1(struct rpivid_dev
+ 	xtrace_in(dev, de);
+ 
+ 	de->p1_status = check_status(dev);
++
+ 	if (de->p1_status != 0) {
+ 		v4l2_info(&dev->v4l2_dev, "%s: Post wait: %#x\n",
+ 			  __func__, de->p1_status);
+@@ -2105,24 +2295,17 @@ static void cb_phase1(struct rpivid_dev
+ 		return;
+ 	}
+ 
+-	/* After the frame-buf is detached it must be returned but from
+-	 * this point onward (phase2_claimed, cb_phase2) there are no error
+-	 * paths so the return at the end of cb_phase2 is all that is needed
+-	 */
+-	de->frame_buf = v4l2_m2m_cap_buf_detach(dev->m2m_dev, ctx->fh.m2m_ctx);
+-	if (!de->frame_buf) {
+-		v4l2_err(&dev->v4l2_dev, "%s: No detached buffer\n", __func__);
+-		goto fail;
+-	}
++	v4l2_m2m_buf_done(de->src_buf, VB2_BUF_STATE_DONE);
++	de->src_buf = NULL;
+ 
++	/* All phase1 error paths done - it is safe to inc p2idx */
+ 	ctx->p2idx =
+ 		(ctx->p2idx + 1 >= RPIVID_P2BUF_COUNT) ? 0 : ctx->p2idx + 1;
+ 
+-	// Enable the next setup if our Q isn't too big
+-	if (atomic_add_return(1, &ctx->p2out) < RPIVID_P2BUF_COUNT) {
++	/* Renable the next setup if we were blocking */
++	if (atomic_add_return(-1, &ctx->p1out) >= RPIVID_P1BUF_COUNT - 1) {
+ 		xtrace_fin(dev, de);
+-		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-						 VB2_BUF_STATE_DONE);
++		v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
+ 	}
+ 
+ 	rpivid_hw_irq_active2_claim(dev, &de->irq_ent, phase2_claimed, de);
+@@ -2131,11 +2314,8 @@ static void cb_phase1(struct rpivid_dev
+ 	return;
+ 
+ fail:
+-	dec_env_delete(de);
+-	xtrace_fin(dev, de);
+-	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-					 VB2_BUF_STATE_ERROR);
+ 	xtrace_fail(dev, de);
++	phase1_err_fin(dev, ctx, de);
+ }
+ 
+ static void phase1_claimed(struct rpivid_dev *const dev, void *v)
+@@ -2160,6 +2340,10 @@ static void phase1_claimed(struct rpivid
+ 	de->coeff_stride =
+ 		ALIGN_DOWN(coeff_gptr->size / de->pic_height_in_ctbs_y, 64);
+ 
++	/* phase1_claimed blocked until cb_phase1 completed so p2idx inc
++	 * in cb_phase1 after error detection
++	 */
++
+ 	apb_write_vc_addr(dev, RPI_PUWBASE, de->pu_base_vc);
+ 	apb_write_vc_len(dev, RPI_PUWSTRIDE, de->pu_stride);
+ 	apb_write_vc_addr(dev, RPI_COEFFWBASE, de->coeff_base_vc);
+@@ -2169,7 +2353,7 @@ static void phase1_claimed(struct rpivid
+ 	apb_write(dev, RPI_CFNUM, de->cmd_len);
+ 
+ 	// Claim irq
+-	rpivid_hw_irq_active1_irq(dev, &de->irq_ent, cb_phase1, de);
++	rpivid_hw_irq_active1_irq(dev, &de->irq_ent, phase1_cb, de);
+ 
+ 	// And start the h/w
+ 	apb_write_vc_addr_final(dev, RPI_CFBASE, de->cmd_copy_gptr->addr);
+@@ -2178,11 +2362,8 @@ static void phase1_claimed(struct rpivid
+ 	return;
+ 
+ fail:
+-	dec_env_delete(de);
+-	xtrace_fin(dev, de);
+-	v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+-					 VB2_BUF_STATE_ERROR);
+ 	xtrace_fail(dev, de);
++	phase1_err_fin(dev, ctx, de);
+ }
+ 
+ static void dec_state_delete(struct rpivid_ctx *const ctx)
+@@ -2315,7 +2496,9 @@ static void rpivid_h265_trigger(struct r
+ 	case RPIVID_DECODE_SLICE_CONTINUE:
+ 		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+ 						 VB2_BUF_STATE_DONE);
++		xtrace_ok(dev, de);
+ 		break;
++
+ 	default:
+ 		v4l2_err(&dev->v4l2_dev, "%s: Unexpected state: %d\n", __func__,
+ 			 de->state);
+@@ -2329,14 +2512,59 @@ static void rpivid_h265_trigger(struct r
+ 		v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx,
+ 						 VB2_BUF_STATE_ERROR);
+ 		break;
++
+ 	case RPIVID_DECODE_PHASE1:
+ 		ctx->dec0 = NULL;
++
++#if !USE_REQUEST_PIN
++		/* Alloc a new request object - needs to be alloced dynamically
++		 * as the media request will release it some random time after
++		 * it is completed
++		 */
++		de->req_obj = kmalloc(sizeof(*de->req_obj), GFP_KERNEL);
++		if (!de->req_obj) {
++			xtrace_fail(dev, de);
++			dec_env_delete(de);
++			v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev,
++							 ctx->fh.m2m_ctx,
++							 VB2_BUF_STATE_ERROR);
++			break;
++		}
++		media_request_object_init(de->req_obj);
++#warning probably needs to _get the req obj too
++#endif
++		ctx->p1idx = (ctx->p1idx + 1 >= RPIVID_P1BUF_COUNT) ?
++							0 : ctx->p1idx + 1;
++
++		/* We know we have src & dst so no need to test */
++		de->src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
++		de->frame_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
++
++#if USE_REQUEST_PIN
++		de->req_pin = de->src_buf->vb2_buf.req_obj.req;
++		media_request_pin(de->req_pin);
++#else
++		media_request_object_bind(de->src_buf->vb2_buf.req_obj.req,
++					  &dst_req_obj_ops, de, false,
++					  de->req_obj);
++#endif
++
++		/* We could get rid of the src buffer here if we've already
++		 * copied it, but we don't copy the last buffer unless it
++		 * didn't return a contig dma addr and that shouldn't happen
++		 */
++
++		/* Enable the next setup if our Q isn't too big */
++		if (atomic_add_return(1, &ctx->p1out) < RPIVID_P1BUF_COUNT) {
++			xtrace_fin(dev, de);
++			v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
++		}
++
+ 		rpivid_hw_irq_active1_claim(dev, &de->irq_ent, phase1_claimed,
+ 					    de);
++		xtrace_ok(dev, de);
+ 		break;
+ 	}
+-
+-	xtrace_ok(dev, de);
+ }
+ 
+ struct rpivid_dec_ops rpivid_dec_ops_h265 = {
+--- a/drivers/staging/media/rpivid/rpivid_hw.c
++++ b/drivers/staging/media/rpivid/rpivid_hw.c
+@@ -185,14 +185,14 @@ static void do_enable_claim(struct rpivi
+ 	sched_cb(dev, ictl, ient);
+ }
+ 
+-static void ictl_init(struct rpivid_hw_irq_ctrl * const ictl)
++static void ictl_init(struct rpivid_hw_irq_ctrl * const ictl, int enables)
+ {
+ 	spin_lock_init(&ictl->lock);
+ 	ictl->claim = NULL;
+ 	ictl->tail = NULL;
+ 	ictl->irq = NULL;
+ 	ictl->no_sched = 0;
+-	ictl->enable = -1;
++	ictl->enable = enables;
+ 	ictl->thread_reqed = false;
+ }
+ 
+@@ -308,8 +308,8 @@ int rpivid_hw_probe(struct rpivid_dev *d
+ 	int irq_dec;
+ 	int ret = 0;
+ 
+-	ictl_init(&dev->ic_active1);
+-	ictl_init(&dev->ic_active2);
++	ictl_init(&dev->ic_active1, RPIVID_P2BUF_COUNT);
++	ictl_init(&dev->ic_active2, RPIVID_ICTL_ENABLE_UNLIMITED);
+ 
+ 	res = platform_get_resource_byname(dev->pdev, IORESOURCE_MEM, "intc");
+ 	if (!res)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0615-media-rpivid-Map-cmd-buffer-directly.patch b/target/linux/bcm27xx/patches-5.10/950-0615-media-rpivid-Map-cmd-buffer-directly.patch
new file mode 100644
index 0000000000..f5f9b10ceb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0615-media-rpivid-Map-cmd-buffer-directly.patch
@@ -0,0 +1,160 @@
+From d4f8e47d60c180cf57eba4093a343230a824ecbf Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Mon, 29 Mar 2021 17:42:16 +0100
+Subject: [PATCH] media: rpivid: Map cmd buffer directly
+
+It is unnecessary to have a separate dmabuf to hold the cmd buffer.
+Map it directly from the kmalloc.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.h      |  3 +-
+ drivers/staging/media/rpivid/rpivid_h265.c | 48 ++++++++++------------
+ drivers/staging/media/rpivid/rpivid_hw.c   |  2 +
+ 3 files changed, 25 insertions(+), 28 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -114,7 +114,6 @@ struct rpivid_ctx {
+ 	unsigned int p1idx;
+ 	atomic_t p1out;
+ 	struct rpivid_gptr bitbufs[RPIVID_P1BUF_COUNT];
+-	struct rpivid_gptr cmdbufs[RPIVID_P1BUF_COUNT];
+ 
+ 	/* *** Should be in dev *** */
+ 	unsigned int p2idx;
+@@ -183,6 +182,8 @@ struct rpivid_dev {
+ 	struct clk		*clock;
+ 	struct clk_request      *hevc_req;
+ 
++	int			cache_align;
++
+ 	struct rpivid_hw_irq_ctrl ic_active1;
+ 	struct rpivid_hw_irq_ctrl ic_active2;
+ };
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -227,6 +227,9 @@ struct rpivid_dec_env {
+ 	struct rpivid_q_aux *frame_aux;
+ 	struct rpivid_q_aux *col_aux;
+ 
++	dma_addr_t cmd_addr;
++	size_t cmd_size;
++
+ 	dma_addr_t pu_base_vc;
+ 	dma_addr_t coeff_base_vc;
+ 	u32 pu_stride;
+@@ -234,7 +237,6 @@ struct rpivid_dec_env {
+ 
+ 	struct rpivid_gptr *bit_copy_gptr;
+ 	size_t bit_copy_len;
+-	struct rpivid_gptr *cmd_copy_gptr;
+ 
+ #define SLICE_MSGS_MAX (2 * HEVC_MAX_REFS * 8 + 3)
+ 	u16 slice_msgs[SLICE_MSGS_MAX];
+@@ -1499,22 +1501,17 @@ static int write_cmd_buffer(struct rpivi
+ 			    struct rpivid_dec_env *const de,
+ 			    const struct rpivid_dec_state *const s)
+ {
+-	// Copy commands out to dma buf
+-	const size_t cmd_size = de->cmd_len * sizeof(de->cmd_fifo[0]);
+-
+-	if (!de->cmd_copy_gptr->ptr || cmd_size > de->cmd_copy_gptr->size) {
+-		size_t cmd_alloc = round_up_size(cmd_size);
++	const size_t cmd_size = ALIGN(de->cmd_len * sizeof(de->cmd_fifo[0]),
++				      dev->cache_align);
+ 
+-		if (gptr_realloc_new(dev, de->cmd_copy_gptr, cmd_alloc)) {
+-			v4l2_err(&dev->v4l2_dev,
+-				 "Alloc cmd buffer (%zu): FAILED\n", cmd_alloc);
+-			return -ENOMEM;
+-		}
+-		v4l2_info(&dev->v4l2_dev, "Alloc cmd buffer (%zu): OK\n",
+-			  cmd_alloc);
++	de->cmd_addr = dma_map_single(dev->dev, de->cmd_fifo,
++				      cmd_size, DMA_TO_DEVICE);
++	if (dma_mapping_error(dev->dev, de->cmd_addr)) {
++		v4l2_err(&dev->v4l2_dev,
++			 "Map cmd buffer (%zu): FAILED\n", cmd_size);
++		return -ENOMEM;
+ 	}
+-
+-	memcpy(de->cmd_copy_gptr->ptr, de->cmd_fifo, cmd_size);
++	de->cmd_size = cmd_size;
+ 	return 0;
+ }
+ 
+@@ -1551,6 +1548,12 @@ static void dec_env_delete(struct rpivid
+ 	struct rpivid_ctx * const ctx = de->ctx;
+ 	unsigned long lock_flags;
+ 
++	if (de->cmd_size) {
++		dma_unmap_single(ctx->dev->dev, de->cmd_addr, de->cmd_size,
++				 DMA_TO_DEVICE);
++		de->cmd_size = 0;
++	}
++
+ 	aux_q_release(ctx, &de->frame_aux);
+ 	aux_q_release(ctx, &de->col_aux);
+ 
+@@ -1603,7 +1606,8 @@ static int dec_env_init(struct rpivid_ct
+ 
+ 		de->ctx = ctx;
+ 		de->decode_order = i;
+-		de->cmd_max = 1024;
++//		de->cmd_max = 1024;
++		de->cmd_max = 8096;
+ 		de->cmd_fifo = kmalloc_array(de->cmd_max,
+ 					     sizeof(struct rpi_cmd),
+ 					     GFP_KERNEL);
+@@ -1748,7 +1752,6 @@ static void rpivid_h265_setup(struct rpi
+ 
+ 		de->bit_copy_gptr = ctx->bitbufs + ctx->p1idx;
+ 		de->bit_copy_len = 0;
+-		de->cmd_copy_gptr = ctx->cmdbufs + ctx->p1idx;
+ 
+ 		de->frame_c_offset = ctx->dst_fmt.height * 128;
+ 		de->frame_stride = ctx->dst_fmt.plane_fmt[0].bytesperline * 128;
+@@ -2356,7 +2359,7 @@ static void phase1_claimed(struct rpivid
+ 	rpivid_hw_irq_active1_irq(dev, &de->irq_ent, phase1_cb, de);
+ 
+ 	// And start the h/w
+-	apb_write_vc_addr_final(dev, RPI_CFBASE, de->cmd_copy_gptr->addr);
++	apb_write_vc_addr_final(dev, RPI_CFBASE, de->cmd_addr);
+ 
+ 	xtrace_ok(dev, de);
+ 	return;
+@@ -2400,8 +2403,6 @@ static void rpivid_h265_stop(struct rpiv
+ 
+ 	for (i = 0; i != ARRAY_SIZE(ctx->bitbufs); ++i)
+ 		gptr_free(dev, ctx->bitbufs + i);
+-	for (i = 0; i != ARRAY_SIZE(ctx->cmdbufs); ++i)
+-		gptr_free(dev, ctx->cmdbufs + i);
+ 	for (i = 0; i != ARRAY_SIZE(ctx->pu_bufs); ++i)
+ 		gptr_free(dev, ctx->pu_bufs + i);
+ 	for (i = 0; i != ARRAY_SIZE(ctx->coeff_bufs); ++i)
+@@ -2451,13 +2452,6 @@ static int rpivid_h265_start(struct rpiv
+ 		goto fail;
+ 	}
+ 
+-	// 16k is plenty for most purposes but we will realloc if needed
+-	for (i = 0; i != ARRAY_SIZE(ctx->cmdbufs); ++i) {
+-		if (gptr_alloc(dev, ctx->cmdbufs + i, 0x4000,
+-			       DMA_ATTR_FORCE_CONTIGUOUS))
+-			goto fail;
+-	}
+-
+ 	// Finger in the air PU & Coeff alloc
+ 	// Will be realloced if too small
+ 	coeff_alloc = round_up_size(wxh);
+--- a/drivers/staging/media/rpivid/rpivid_hw.c
++++ b/drivers/staging/media/rpivid/rpivid_hw.c
+@@ -331,6 +331,8 @@ int rpivid_hw_probe(struct rpivid_dev *d
+ 	if (IS_ERR(dev->clock))
+ 		return PTR_ERR(dev->clock);
+ 
++	dev->cache_align = dma_get_cache_alignment();
++
+ 	// Disable IRQs & reset anything pending
+ 	irq_write(dev, 0,
+ 		  ARG_IC_ICTRL_ACTIVE1_EN_SET | ARG_IC_ICTRL_ACTIVE2_EN_SET);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0616-media-rpivid-Improve-values-returned-when-setting-ou.patch b/target/linux/bcm27xx/patches-5.10/950-0616-media-rpivid-Improve-values-returned-when-setting-ou.patch
new file mode 100644
index 0000000000..7aa3e22778
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0616-media-rpivid-Improve-values-returned-when-setting-ou.patch
@@ -0,0 +1,216 @@
+From 60374506d427194b8ebb8963f5358bffd347c2e3 Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 1 Apr 2021 16:20:58 +0100
+Subject: [PATCH] media: rpivid: Improve values returned when setting
+ output format
+
+Guess a better value for the compressed bitstream buffer size
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid_h265.c  | 66 ++++-----------------
+ drivers/staging/media/rpivid/rpivid_video.c | 61 +++++++++++++++++--
+ drivers/staging/media/rpivid/rpivid_video.h |  4 ++
+ 3 files changed, 70 insertions(+), 61 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -18,6 +18,7 @@
+ 
+ #include "rpivid.h"
+ #include "rpivid_hw.h"
++#include "rpivid_video.h"
+ 
+ #define DEBUG_TRACE_P1_CMD 0
+ #define DEBUG_TRACE_EXECUTION 0
+@@ -115,41 +116,9 @@ static int gptr_realloc_new(struct rpivi
+ 	return 0;
+ }
+ 
+-/* floor(log2(x)) */
+-static unsigned int log2_size(size_t x)
+-{
+-	unsigned int n = 0;
+-
+-	if (x & ~0xffff) {
+-		n += 16;
+-		x >>= 16;
+-	}
+-	if (x & ~0xff) {
+-		n += 8;
+-		x >>= 8;
+-	}
+-	if (x & ~0xf) {
+-		n += 4;
+-		x >>= 4;
+-	}
+-	if (x & ~3) {
+-		n += 2;
+-		x >>= 2;
+-	}
+-	return (x & ~1) ? n + 1 : n;
+-}
+-
+-static size_t round_up_size(const size_t x)
+-{
+-	/* Admit no size < 256 */
+-	const unsigned int n = x < 256 ? 8 : log2_size(x) - 1;
+-
+-	return x >= (3 << n) ? 4 << n : (3 << n);
+-}
+-
+ static size_t next_size(const size_t x)
+ {
+-	return round_up_size(x + 1);
++	return rpivid_round_up_size(x + 1);
+ }
+ 
+ #define NUM_SCALING_FACTORS 4064 /* Not a typo = 0xbe0 + 0x400 */
+@@ -332,7 +301,7 @@ static int cmds_check_space(struct rpivi
+ 	if (de->cmd_len + n <= de->cmd_max)
+ 		return 0;
+ 
+-	newmax = 2 << log2_size(de->cmd_len + n);
++	newmax = roundup_pow_of_two(de->cmd_len + n);
+ 
+ 	a = krealloc(de->cmd_fifo, newmax * sizeof(struct rpi_cmd),
+ 		     GFP_KERNEL);
+@@ -1855,23 +1824,10 @@ static void rpivid_h265_setup(struct rpi
+ 		 * slice as we can use the src buf directly
+ 		 */
+ 		if (!s->frame_end && !de->bit_copy_gptr->ptr) {
+-			const size_t wxh = s->sps.pic_width_in_luma_samples *
+-				s->sps.pic_height_in_luma_samples;
+ 			size_t bits_alloc;
+-
+-			/* Annex A gives a min compression of 2 @ lvl 3.1
+-			 * (wxh <= 983040) and min 4 thereafter but avoid
+-			 * the odity of 983041 having a lower limit than
+-			 * 983040.
+-			 * Multiply by 3/2 for 4:2:0
+-			 */
+-			bits_alloc = wxh < 983040 ? wxh * 3 / 4 :
+-				wxh < 983040 * 2 ? 983040 * 3 / 4 :
+-				wxh * 3 / 8;
+-			/* Allow for bit depth */
+-			bits_alloc += (bits_alloc *
+-				       s->sps.bit_depth_luma_minus8) / 8;
+-			bits_alloc = round_up_size(bits_alloc);
++			bits_alloc = rpivid_bit_buf_size(s->sps.pic_width_in_luma_samples,
++							 s->sps.pic_height_in_luma_samples,
++							 s->sps.bit_depth_luma_minus8);
+ 
+ 			if (gptr_alloc(dev, de->bit_copy_gptr,
+ 				       bits_alloc,
+@@ -2454,17 +2410,15 @@ static int rpivid_h265_start(struct rpiv
+ 
+ 	// Finger in the air PU & Coeff alloc
+ 	// Will be realloced if too small
+-	coeff_alloc = round_up_size(wxh);
+-	pu_alloc = round_up_size(wxh / 4);
++	coeff_alloc = rpivid_round_up_size(wxh);
++	pu_alloc = rpivid_round_up_size(wxh / 4);
+ 	for (i = 0; i != ARRAY_SIZE(ctx->pu_bufs); ++i) {
+ 		// Don't actually need a kernel mapping here
+ 		if (gptr_alloc(dev, ctx->pu_bufs + i, pu_alloc,
+-			       DMA_ATTR_FORCE_CONTIGUOUS |
+-					DMA_ATTR_NO_KERNEL_MAPPING))
++			       DMA_ATTR_NO_KERNEL_MAPPING))
+ 			goto fail;
+ 		if (gptr_alloc(dev, ctx->coeff_bufs + i, coeff_alloc,
+-			       DMA_ATTR_FORCE_CONTIGUOUS |
+-					DMA_ATTR_NO_KERNEL_MAPPING))
++			       DMA_ATTR_NO_KERNEL_MAPPING))
+ 			goto fail;
+ 	}
+ 	aux_q_init(ctx);
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -42,18 +42,69 @@ static inline unsigned int constrain2x(u
+ 			(x > y * 2) ? y : x;
+ }
+ 
++size_t rpivid_round_up_size(const size_t x)
++{
++	/* Admit no size < 256 */
++	const unsigned int n = x < 256 ? 8 : ilog2(x);
++
++	return x >= (3 << n) ? 4 << n : (3 << n);
++}
++
++size_t rpivid_bit_buf_size(unsigned int w, unsigned int h, unsigned int bits_minus8)
++{
++	const size_t wxh = w * h;
++	size_t bits_alloc;
++
++	/* Annex A gives a min compression of 2 @ lvl 3.1
++	 * (wxh <= 983040) and min 4 thereafter but avoid
++	 * the odity of 983041 having a lower limit than
++	 * 983040.
++	 * Multiply by 3/2 for 4:2:0
++	 */
++	bits_alloc = wxh < 983040 ? wxh * 3 / 4 :
++		wxh < 983040 * 2 ? 983040 * 3 / 4 :
++		wxh * 3 / 8;
++	/* Allow for bit depth */
++	bits_alloc += (bits_alloc * bits_minus8) / 8;
++	return rpivid_round_up_size(bits_alloc);
++}
++
+ int rpivid_prepare_src_format(struct v4l2_pix_format_mplane *pix_fmt)
+ {
++	size_t size;
++	u32 w;
++	u32 h;
++
+ 	if (pix_fmt->pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
+ 		return -EINVAL;
+ 
+-	/* Zero bytes per line for encoded source. */
+-	pix_fmt->plane_fmt[0].bytesperline = 0;
+-	/* Choose some minimum size since this can't be 0 */
+-	pix_fmt->plane_fmt[0].sizeimage = max_t(u32, SZ_1K,
+-						pix_fmt->plane_fmt[0].sizeimage);
++	w = pix_fmt->width;
++	h = pix_fmt->height;
++	if (!w || !h) {
++		w = 1920;
++		h = 1080;
++	}
++	if (w > 4096)
++		w = 4096;
++	if (h > 4096)
++		h = 4096;
++
++	if (!pix_fmt->plane_fmt[0].sizeimage ||
++	    pix_fmt->plane_fmt[0].sizeimage > SZ_32M) {
++		/* Unspecified or way too big - pick max for size */
++		size = rpivid_bit_buf_size(w, h, 2);
++	}
++	/* Set a minimum */
++	size = max_t(u32, SZ_4K, pix_fmt->plane_fmt[0].sizeimage);
++
++	pix_fmt->width = w;
++	pix_fmt->height = h;
+ 	pix_fmt->num_planes = 1;
+ 	pix_fmt->field = V4L2_FIELD_NONE;
++	/* Zero bytes per line for encoded source. */
++	pix_fmt->plane_fmt[0].bytesperline = 0;
++	pix_fmt->plane_fmt[0].sizeimage = size;
++
+ 	return 0;
+ }
+ 
+--- a/drivers/staging/media/rpivid/rpivid_video.h
++++ b/drivers/staging/media/rpivid/rpivid_video.h
+@@ -24,6 +24,10 @@ extern const struct v4l2_ioctl_ops rpivi
+ 
+ int rpivid_queue_init(void *priv, struct vb2_queue *src_vq,
+ 		      struct vb2_queue *dst_vq);
++
++size_t rpivid_bit_buf_size(unsigned int w, unsigned int h, unsigned int bits_minus8);
++size_t rpivid_round_up_size(const size_t x);
++
+ int rpivid_prepare_src_format(struct v4l2_pix_format_mplane *pix_fmt);
+ int rpivid_prepare_dst_format(struct v4l2_pix_format_mplane *pix_fmt);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0617-media-rpivid-Improve-stream_on-off-conformance-clock.patch b/target/linux/bcm27xx/patches-5.10/950-0617-media-rpivid-Improve-stream_on-off-conformance-clock.patch
new file mode 100644
index 0000000000..ad7f0a77cc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0617-media-rpivid-Improve-stream_on-off-conformance-clock.patch
@@ -0,0 +1,260 @@
+From 6a269149abd400ff09bb61b254d7d7891b2b01b1 Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Sat, 3 Apr 2021 16:27:03 +0100
+Subject: [PATCH] media: rpivid: Improve stream_on/off conformance &
+ clock setup
+
+Fix stream on & off such that failures leave the driver in the correct
+state.  Ensure that the clock is on when we are streaming and off when
+all contexts attached to this device have stopped streaming.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.c       |   8 +-
+ drivers/staging/media/rpivid/rpivid.h       |  15 ++-
+ drivers/staging/media/rpivid/rpivid_hw.c    |   1 +
+ drivers/staging/media/rpivid/rpivid_video.c | 103 +++++++++++++++-----
+ 4 files changed, 101 insertions(+), 26 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.c
++++ b/drivers/staging/media/rpivid/rpivid.c
+@@ -212,9 +212,12 @@ static int rpivid_open(struct file *file
+ 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ 	if (!ctx) {
+ 		mutex_unlock(&dev->dev_mutex);
+-		return -ENOMEM;
++		ret = -ENOMEM;
++		goto err_unlock;
+ 	}
+ 
++	mutex_init(&ctx->ctx_mutex);
++
+ 	v4l2_fh_init(&ctx->fh, video_devdata(file));
+ 	file->private_data = &ctx->fh;
+ 	ctx->dev = dev;
+@@ -245,7 +248,9 @@ static int rpivid_open(struct file *file
+ err_ctrls:
+ 	v4l2_ctrl_handler_free(&ctx->hdl);
+ err_free:
++	mutex_destroy(&ctx->ctx_mutex);
+ 	kfree(ctx);
++err_unlock:
+ 	mutex_unlock(&dev->dev_mutex);
+ 
+ 	return ret;
+@@ -266,6 +271,7 @@ static int rpivid_release(struct file *f
+ 	kfree(ctx->ctrls);
+ 
+ 	v4l2_fh_exit(&ctx->fh);
++	mutex_destroy(&ctx->ctx_mutex);
+ 
+ 	kfree(ctx);
+ 
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -84,6 +84,11 @@ struct rpivid_q_aux;
+ #define RPIVID_AUX_ENT_COUNT VB2_MAX_FRAME
+ 
+ 
++#define RPIVID_CTX_STATE_STOPPED	0	/* stream_off */
++#define RPIVID_CTX_STATE_STREAM_ON	1	/* decoding */
++#define RPIVID_CTX_STATE_STREAM_STOP	2	/* in stream_off */
++#define RPIVID_CTX_STATE_STREAM_ERR	3	/* stream_on but broken */
++
+ struct rpivid_ctx {
+ 	struct v4l2_fh			fh;
+ 	struct rpivid_dev		*dev;
+@@ -91,10 +96,19 @@ struct rpivid_ctx {
+ 	struct v4l2_pix_format_mplane	src_fmt;
+ 	struct v4l2_pix_format_mplane	dst_fmt;
+ 	int dst_fmt_set;
++
++	atomic_t 			stream_state;
++	struct clk_request		*clk_req;
++	int 				src_stream_on;
++	int 				dst_stream_on;
++
+ 	// fatal_err is set if an error has occurred s.t. decode cannot
+ 	// continue (such as running out of CMA)
+ 	int fatal_err;
+ 
++	/* Lock for queue operations */
++	struct mutex			ctx_mutex;
++
+ 	struct v4l2_ctrl_handler	hdl;
+ 	struct v4l2_ctrl		**ctrls;
+ 
+@@ -180,7 +194,6 @@ struct rpivid_dev {
+ 	void __iomem		*base_h265;
+ 
+ 	struct clk		*clock;
+-	struct clk_request      *hevc_req;
+ 
+ 	int			cache_align;
+ 
+--- a/drivers/staging/media/rpivid/rpivid_hw.c
++++ b/drivers/staging/media/rpivid/rpivid_hw.c
+@@ -359,6 +359,7 @@ int rpivid_hw_probe(struct rpivid_dev *d
+ void rpivid_hw_remove(struct rpivid_dev *dev)
+ {
+ 	// IRQ auto freed on unload so no need to do it here
++	// ioremap auto freed on unload
+ 	ictl_uninit(&dev->ic_active1);
+ 	ictl_uninit(&dev->ic_active2);
+ }
+--- a/drivers/staging/media/rpivid/rpivid_video.c
++++ b/drivers/staging/media/rpivid/rpivid_video.c
+@@ -18,6 +18,7 @@
+ #include <media/v4l2-mem2mem.h>
+ 
+ #include "rpivid.h"
++#include "rpivid_hw.h"
+ #include "rpivid_video.h"
+ #include "rpivid_dec.h"
+ 
+@@ -533,33 +534,85 @@ static int rpivid_buf_prepare(struct vb2
+ 	return 0;
+ }
+ 
++/* Only stops the clock if streaom off on both output & capture */
++static void stop_clock(struct rpivid_dev *dev, struct rpivid_ctx *ctx)
++{
++	if (ctx->src_stream_on ||
++	    ctx->dst_stream_on ||
++	    !ctx->clk_req)
++		return;
++
++	clk_request_done(ctx->clk_req);
++	ctx->clk_req = NULL;
++
++	clk_disable_unprepare(dev->clock);
++}
++
++/* Always starts the clock if it isn't already on this ctx */
++static int start_clock(struct rpivid_dev *dev, struct rpivid_ctx *ctx)
++{
++	long max_hevc_clock;
++	int rv;
++
++	if (ctx->clk_req)
++		return 0;
++
++	max_hevc_clock = clk_round_rate(dev->clock, ULONG_MAX);
++
++	ctx->clk_req = clk_request_start(dev->clock, max_hevc_clock);
++	if (!ctx->clk_req) {
++		dev_err(dev->dev, "Failed to set clock rate\n");
++		return -EIO;
++	}
++
++	rv = clk_prepare_enable(dev->clock);
++	if (rv) {
++		dev_err(dev->dev, "Failed to enable clock\n");
++		clk_request_done(ctx->clk_req);
++		ctx->clk_req = NULL;
++		return rv;
++	}
++
++	return 0;
++}
++
+ static int rpivid_start_streaming(struct vb2_queue *vq, unsigned int count)
+ {
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+ 	struct rpivid_dev *dev = ctx->dev;
+-	long max_hevc_clock = clk_round_rate(dev->clock, ULONG_MAX);
+ 	int ret = 0;
+ 
+-	if (ctx->src_fmt.pixelformat != V4L2_PIX_FMT_HEVC_SLICE)
+-		return -EINVAL;
+-
+-	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->start)
+-		ret = dev->dec_ops->start(ctx);
++	if (!V4L2_TYPE_IS_OUTPUT(vq->type)) {
++		ctx->dst_stream_on = 1;
++		goto ok;
++	}
+ 
+-	dev->hevc_req = clk_request_start(dev->clock, max_hevc_clock);
+-	if (!dev->hevc_req) {
+-		dev_err(dev->dev, "Failed to set clock rate\n");
+-		goto out;
++	if (ctx->src_fmt.pixelformat != V4L2_PIX_FMT_HEVC_SLICE) {
++		ret = -EINVAL;
++		goto fail_cleanup;
+ 	}
+ 
+-	ret = clk_prepare_enable(dev->clock);
++	if (ctx->src_stream_on)
++		goto ok;
++
++	ret = start_clock(dev, ctx);
+ 	if (ret)
+-		dev_err(dev->dev, "Failed to enable clock\n");
++		goto fail_cleanup;
+ 
+-out:
++	if (dev->dec_ops->start)
++		ret = dev->dec_ops->start(ctx);
+ 	if (ret)
+-		rpivid_queue_cleanup(vq, VB2_BUF_STATE_QUEUED);
++		goto fail_stop_clock;
++
++	ctx->src_stream_on = 1;
++ok:
++	return 0;
+ 
++fail_stop_clock:
++	stop_clock(dev, ctx);
++fail_cleanup:
++	v4l2_err(&dev->v4l2_dev, "%s: qtype=%d: FAIL\n", __func__, vq->type);
++	rpivid_queue_cleanup(vq, VB2_BUF_STATE_QUEUED);
+ 	return ret;
+ }
+ 
+@@ -568,17 +621,19 @@ static void rpivid_stop_streaming(struct
+ 	struct rpivid_ctx *ctx = vb2_get_drv_priv(vq);
+ 	struct rpivid_dev *dev = ctx->dev;
+ 
+-	if (V4L2_TYPE_IS_OUTPUT(vq->type) && dev->dec_ops->stop)
+-		dev->dec_ops->stop(ctx);
++	if (V4L2_TYPE_IS_OUTPUT(vq->type)) {
++		ctx->src_stream_on = 0;
++		if (dev->dec_ops->stop)
++			dev->dec_ops->stop(ctx);
++	} else {
++		ctx->dst_stream_on = 0;
++	}
+ 
+ 	rpivid_queue_cleanup(vq, VB2_BUF_STATE_ERROR);
+ 
+-	if (dev->hevc_req)
+-	{
+-		clk_request_done(dev->hevc_req);
+-		dev->hevc_req = NULL;
+-	}
+-	clk_disable_unprepare(dev->clock);
++	vb2_wait_for_all_buffers(vq);
++
++	stop_clock(dev, ctx);
+ }
+ 
+ static void rpivid_buf_queue(struct vb2_buffer *vb)
+@@ -622,7 +677,7 @@ int rpivid_queue_init(void *priv, struct
+ 	src_vq->ops = &rpivid_qops;
+ 	src_vq->mem_ops = &vb2_dma_contig_memops;
+ 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+-	src_vq->lock = &ctx->dev->dev_mutex;
++	src_vq->lock = &ctx->ctx_mutex;
+ 	src_vq->dev = ctx->dev->dev;
+ 	src_vq->supports_requests = true;
+ 	src_vq->requires_requests = true;
+@@ -639,7 +694,7 @@ int rpivid_queue_init(void *priv, struct
+ 	dst_vq->ops = &rpivid_qops;
+ 	dst_vq->mem_ops = &vb2_dma_contig_memops;
+ 	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+-	dst_vq->lock = &ctx->dev->dev_mutex;
++	dst_vq->lock = &ctx->ctx_mutex;
+ 	dst_vq->dev = ctx->dev->dev;
+ 
+ 	return vb2_queue_init(dst_vq);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0618-media-rpivid-Improve-SPS-PPS-error-handling-validati.patch b/target/linux/bcm27xx/patches-5.10/950-0618-media-rpivid-Improve-SPS-PPS-error-handling-validati.patch
new file mode 100644
index 0000000000..f72c241746
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0618-media-rpivid-Improve-SPS-PPS-error-handling-validati.patch
@@ -0,0 +1,256 @@
+From f30e24aa4a64cb6c341140270b74357505a20d4f Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 8 Apr 2021 18:34:09 +0100
+Subject: [PATCH] media: rpivid: Improve SPS/PPS error
+ handling/validation
+
+Move size and width checking from bitstream processing to control
+validation
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid.c      |   5 +-
+ drivers/staging/media/rpivid/rpivid.h      |   6 +-
+ drivers/staging/media/rpivid/rpivid_h265.c | 132 ++++++++++++++++++---
+ 3 files changed, 121 insertions(+), 22 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid.c
++++ b/drivers/staging/media/rpivid/rpivid.c
+@@ -38,12 +38,14 @@ static const struct rpivid_control rpivi
+ 	{
+ 		.cfg = {
+ 			.id	= V4L2_CID_MPEG_VIDEO_HEVC_SPS,
++			.ops	= &rpivid_hevc_sps_ctrl_ops,
+ 		},
+ 		.required	= true,
+ 	},
+ 	{
+ 		.cfg = {
+ 			.id	= V4L2_CID_MPEG_VIDEO_HEVC_PPS,
++			.ops	= &rpivid_hevc_pps_ctrl_ops,
+ 		},
+ 		.required	= true,
+ 	},
+@@ -119,7 +121,7 @@ static int rpivid_init_ctrls(struct rpiv
+ 
+ 	for (i = 0; i < rpivid_ctrls_COUNT; i++) {
+ 		ctrl = v4l2_ctrl_new_custom(hdl, &rpivid_ctrls[i].cfg,
+-					    NULL);
++					    ctx);
+ 		if (hdl->error) {
+ 			v4l2_err(&dev->v4l2_dev,
+ 				 "Failed to create new custom control id=%#x\n",
+@@ -191,6 +193,7 @@ static int rpivid_request_validate(struc
+ 		if (!ctrl_test) {
+ 			v4l2_info(&ctx->dev->v4l2_dev,
+ 				  "Missing required codec control\n");
++			v4l2_ctrl_request_hdl_put(hdl);
+ 			return -ENOENT;
+ 		}
+ 	}
+--- a/drivers/staging/media/rpivid/rpivid.h
++++ b/drivers/staging/media/rpivid/rpivid.h
+@@ -185,7 +185,7 @@ struct rpivid_dev {
+ 	struct platform_device	*pdev;
+ 	struct device		*dev;
+ 	struct v4l2_m2m_dev	*m2m_dev;
+-	struct rpivid_dec_ops	*dec_ops;
++	const struct rpivid_dec_ops *dec_ops;
+ 
+ 	/* Device file mutex */
+ 	struct mutex		dev_mutex;
+@@ -201,7 +201,9 @@ struct rpivid_dev {
+ 	struct rpivid_hw_irq_ctrl ic_active2;
+ };
+ 
+-extern struct rpivid_dec_ops rpivid_dec_ops_h265;
++extern const struct rpivid_dec_ops rpivid_dec_ops_h265;
++extern const struct v4l2_ctrl_ops rpivid_hevc_sps_ctrl_ops;
++extern const struct v4l2_ctrl_ops rpivid_hevc_pps_ctrl_ops;
+ 
+ struct v4l2_ctrl *rpivid_find_ctrl(struct rpivid_ctx *ctx, u32 id);
+ void *rpivid_find_control_data(struct rpivid_ctx *ctx, u32 id);
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -1432,9 +1432,13 @@ static int updated_ps(struct rpivid_dec_
+ 	s->ctb_addr_rs_to_ts = kmalloc_array(s->ctb_size,
+ 					     sizeof(*s->ctb_addr_rs_to_ts),
+ 					     GFP_KERNEL);
++	if (!s->ctb_addr_rs_to_ts)
++		goto fail;
+ 	s->ctb_addr_ts_to_rs = kmalloc_array(s->ctb_size,
+ 					     sizeof(*s->ctb_addr_ts_to_rs),
+ 					     GFP_KERNEL);
++	if (!s->ctb_addr_ts_to_rs)
++		goto fail;
+ 
+ 	if (!(s->pps.flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED)) {
+ 		s->tile_width = 1;
+@@ -1446,8 +1450,12 @@ static int updated_ps(struct rpivid_dec_
+ 
+ 	s->col_bd = kmalloc((s->tile_width + 1) * sizeof(*s->col_bd),
+ 			    GFP_KERNEL);
++	if (!s->col_bd)
++		goto fail;
+ 	s->row_bd = kmalloc((s->tile_height + 1) * sizeof(*s->row_bd),
+ 			    GFP_KERNEL);
++	if (!s->row_bd)
++		goto fail;
+ 
+ 	s->col_bd[0] = 0;
+ 	for (i = 1; i < s->tile_width; i++)
+@@ -1462,8 +1470,13 @@ static int updated_ps(struct rpivid_dec_
+ 	s->row_bd[s->tile_height] = s->ctb_height;
+ 
+ 	fill_rs_to_ts(s);
+-
+ 	return 0;
++
++fail:
++	free_ps_info(s);
++	/* Set invalid to force reload */
++	s->sps.pic_width_in_luma_samples = 0;
++	return -ENOMEM;
+ }
+ 
+ static int write_cmd_buffer(struct rpivid_dev *const dev,
+@@ -1694,7 +1707,9 @@ static void rpivid_h265_setup(struct rpi
+ 			memcpy(&s->pps, run->h265.pps, sizeof(s->pps));
+ 
+ 			/* Recalc stuff as required */
+-			updated_ps(s);
++			rv = updated_ps(s);
++			if (rv)
++				goto fail;
+ 		}
+ 
+ 		de = dec_env_new(ctx);
+@@ -1772,22 +1787,6 @@ static void rpivid_h265_setup(struct rpi
+ 			goto fail;
+ 		}
+ 
+-		if (s->sps.pic_width_in_luma_samples > 4096 ||
+-		    s->sps.pic_height_in_luma_samples > 4096) {
+-			v4l2_warn(&dev->v4l2_dev,
+-				  "Pic dimension (%dx%d) exeeds 4096\n",
+-				  s->sps.pic_width_in_luma_samples,
+-				  s->sps.pic_height_in_luma_samples);
+-			goto fail;
+-		}
+-		if ((s->tile_width != 1 || s->tile_height != 1) &&
+-		    (s->pps.flags &
+-		     V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED)) {
+-			v4l2_warn(&dev->v4l2_dev,
+-				  "Tiles + WPP not supported\n");
+-			goto fail;
+-		}
+-
+ 		// Fill in ref planes with our address s.t. if we mess
+ 		// up refs somehow then we still have a valid address
+ 		// entry
+@@ -2515,9 +2514,104 @@ static void rpivid_h265_trigger(struct r
+ 	}
+ }
+ 
+-struct rpivid_dec_ops rpivid_dec_ops_h265 = {
++const struct rpivid_dec_ops rpivid_dec_ops_h265 = {
+ 	.setup = rpivid_h265_setup,
+ 	.start = rpivid_h265_start,
+ 	.stop = rpivid_h265_stop,
+ 	.trigger = rpivid_h265_trigger,
+ };
++
++static int try_ctrl_sps(struct v4l2_ctrl *ctrl)
++{
++	const struct v4l2_ctrl_hevc_sps *const sps = ctrl->p_new.p_hevc_sps;
++	struct rpivid_ctx *const ctx = ctrl->priv;
++	struct rpivid_dev *const dev = ctx->dev;
++
++	if (sps->chroma_format_idc != 1) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Chroma format (%d) unsupported\n",
++			  sps->chroma_format_idc);
++		return -EINVAL;
++	}
++
++	if (sps->bit_depth_luma_minus8 != 0 &&
++	    sps->bit_depth_luma_minus8 != 2) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Luma depth (%d) unsupported\n",
++			  sps->bit_depth_luma_minus8 + 8);
++		return -EINVAL;
++	}
++
++	if (sps->bit_depth_luma_minus8 != sps->bit_depth_chroma_minus8) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Chroma depth (%d) != Luma depth (%d)\n",
++			  sps->bit_depth_chroma_minus8 + 8,
++			  sps->bit_depth_luma_minus8 + 8);
++		return -EINVAL;
++	}
++
++	if (!sps->pic_width_in_luma_samples ||
++	    !sps->pic_height_in_luma_samples ||
++	    sps->pic_width_in_luma_samples > 4096 ||
++	    sps->pic_height_in_luma_samples > 4096) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "Bad sps width (%u) x height (%u)\n",
++			  sps->pic_width_in_luma_samples,
++			  sps->pic_height_in_luma_samples);
++		return -EINVAL;
++	}
++
++	if (!ctx->dst_fmt_set)
++		return 0;
++
++	if ((sps->bit_depth_luma_minus8 == 0 &&
++	     ctx->dst_fmt.pixelformat != V4L2_PIX_FMT_NV12_COL128) ||
++	    (sps->bit_depth_luma_minus8 == 2 &&
++	     ctx->dst_fmt.pixelformat != V4L2_PIX_FMT_NV12_10_COL128)) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "SPS luma depth %d does not match capture format\n",
++			  sps->bit_depth_luma_minus8 + 8);
++		return -EINVAL;
++	}
++
++	if (sps->pic_width_in_luma_samples > ctx->dst_fmt.width ||
++	    sps->pic_height_in_luma_samples > ctx->dst_fmt.height) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "SPS size (%dx%d) > capture size (%d,%d)\n",
++			  sps->pic_width_in_luma_samples,
++			  sps->pic_height_in_luma_samples,
++			  ctx->dst_fmt.width,
++			  ctx->dst_fmt.height);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++const struct v4l2_ctrl_ops rpivid_hevc_sps_ctrl_ops = {
++	.try_ctrl = try_ctrl_sps,
++};
++
++static int try_ctrl_pps(struct v4l2_ctrl *ctrl)
++{
++	const struct v4l2_ctrl_hevc_pps *const pps = ctrl->p_new.p_hevc_pps;
++	struct rpivid_ctx *const ctx = ctrl->priv;
++	struct rpivid_dev *const dev = ctx->dev;
++
++	if ((pps->flags &
++	     V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED) &&
++	    (pps->flags &
++	     V4L2_HEVC_PPS_FLAG_TILES_ENABLED) &&
++	    (pps->num_tile_columns_minus1 || pps->num_tile_rows_minus1)) {
++		v4l2_warn(&dev->v4l2_dev,
++			  "WPP + Tiles not supported\n");
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++const struct v4l2_ctrl_ops rpivid_hevc_pps_ctrl_ops = {
++	.try_ctrl = try_ctrl_pps,
++};
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0619-overlays-add-sensirion-sgp30-to-i2c-sensor-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0619-overlays-add-sensirion-sgp30-to-i2c-sensor-overlay.patch
new file mode 100644
index 0000000000..45232f720e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0619-overlays-add-sensirion-sgp30-to-i2c-sensor-overlay.patch
@@ -0,0 +1,54 @@
+From 0fa1f65da585dae9cf4fce77f412eb129ac13da6 Mon Sep 17 00:00:00 2001
+From: Mehmet Ahsen <2084476+mehmetahsen@users.noreply.github.com>
+Date: Fri, 21 May 2021 00:14:29 +0200
+Subject: [PATCH] overlays: add sensirion sgp30 to i2c-sensor overlay
+
+---
+ arch/arm/boot/dts/overlays/README                |  3 +++
+ .../arm/boot/dts/overlays/i2c-sensor-overlay.dts | 16 ++++++++++++++++
+ 2 files changed, 19 insertions(+)
+ mode change 100644 => 100755 arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1527,6 +1527,9 @@ Params: addr                    Set the
+         sps30                   Select the Sensirion SPS30 particulate matter
+                                 sensor. Fixed address 0x69.
+ 
++        sgp30                   Select the Sensirion SGP30 VOC sensor.
++                                Fixed address 0x58.
++
+         tmp102                  Select the Texas Instruments TMP102 temp sensor
+                                 Valid addresses 0x48-0x4b, default 0x48
+ 
+--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+@@ -246,6 +246,21 @@
+ 		};
+ 	};
+ 
++	fragment@16 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sgp30: sgp30@58 {
++				compatible = "sensirion,sgp30";
++				reg = <0x58>;
++				status = "okay";
++			};
++		};
++	};
++
+ 	__overrides__ {
+ 		addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
+ 			<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
+@@ -267,5 +282,6 @@
+ 		max17040 = <0>,"+13";
+ 		bme680 = <0>,"+14";
+ 		sps30 = <0>,"+15";
++		sgp30 = <0>,"+16";
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0620-overlays-Remove-deleted-merus-amp-parameter.patch b/target/linux/bcm27xx/patches-5.10/950-0620-overlays-Remove-deleted-merus-amp-parameter.patch
new file mode 100644
index 0000000000..262f5b1be3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0620-overlays-Remove-deleted-merus-amp-parameter.patch
@@ -0,0 +1,23 @@
+From 10db150791a90ab672767c2a44cb68455c2b8776 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 21 May 2021 11:29:52 +0100
+Subject: [PATCH] overlays: Remove deleted merus-amp parameter
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2010,8 +2010,8 @@ Params: speed                   Display
+ 
+ Name:   merus-amp
+ Info:   Configures the merus-amp audio card
+-Load:   dtoverlay=merus-amp,<param>=<val>
+-Params: spioff                  Turn SPI bus off
++Load:   dtoverlay=merus-amp
++Params: <None>
+ 
+ 
+ Name:   midi-uart0
diff --git a/target/linux/bcm27xx/patches-5.10/950-0621-overlays-add-bh1750-and-ccs811-to-i2c-sensor-4334.patch b/target/linux/bcm27xx/patches-5.10/950-0621-overlays-add-bh1750-and-ccs811-to-i2c-sensor-4334.patch
new file mode 100644
index 0000000000..738f8347e6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0621-overlays-add-bh1750-and-ccs811-to-i2c-sensor-4334.patch
@@ -0,0 +1,96 @@
+From fa6a21d6e2e8d5416ec9d2ca7841777aa0822796 Mon Sep 17 00:00:00 2001
+From: Mart Lubbers <mart@martlubbers.net>
+Date: Tue, 11 May 2021 11:51:35 +0200
+Subject: [PATCH] overlays: add bh1750 and ccs811 to i2c-sensor (#4334)
+
+See: https://github.com/raspberrypi/linux/pull/4334
+---
+ arch/arm/boot/dts/overlays/README             | 15 +++++---
+ .../boot/dts/overlays/i2c-sensor-overlay.dts  | 35 ++++++++++++++++++-
+ 2 files changed, 45 insertions(+), 5 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1482,11 +1482,15 @@ Params: abx80x                  Select o
+ 
+ 
+ Name:   i2c-sensor
+-Info:   Adds support for a number of I2C barometric pressure and temperature
+-        sensors on i2c_arm
++Info:   Adds support for a number of I2C barometric pressure, temperature,
++        light level and chemical sensors on i2c_arm
+ Load:   dtoverlay=i2c-sensor,<param>=<val>
+-Params: addr                    Set the address for the BME280, BME680, BMP280,
+-                                DS1621, HDC100X, LM75, SHT3x or TMP102
++Params: addr                    Set the address for the BH1750, BME280, BME680,
++                                BMP280, CCS811, DS1621, HDC100X, LM75, SHT3x or
++                                TMP102
++
++        bh1750                  Select the Rohm BH1750 ambient light sensor
++                                Valid addresses 0x23 or 0x5c, default 0x23
+ 
+         bme280                  Select the Bosch Sensortronic BME280
+                                 Valid addresses 0x76-0x77, default 0x76
+@@ -1501,6 +1505,9 @@ Params: addr                    Set the
+         bmp280                  Select the Bosch Sensortronic BMP280
+                                 Valid addresses 0x76-0x77, default 0x76
+ 
++        ccs811                  Select the AMS CCS811 digital gas sensor
++                                Valid addresses 0x5a-0x5b, default 0x5b
++
+         ds1621                  Select the Dallas Semiconductors DS1621 temp
+                                 sensor. Valid addresses 0x48-0x4f, default 0x48
+ 
+--- a/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-sensor-overlay.dts
+@@ -261,10 +261,41 @@
+ 		};
+ 	};
+ 
++	fragment@17 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			ccs811: ccs811@5b {
++				compatible = "ccs811";
++				reg = <0x5b>;
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@18 {
++		target = <&i2c_arm>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			bh1750: bh1750@23 {
++				compatible = "bh1750";
++				reg = <0x23>;
++				status = "okay";
++			};
++		};
++	};
++
+ 	__overrides__ {
+ 		addr =  <&bme280>,"reg:0", <&bmp280>,"reg:0", <&tmp102>,"reg:0",
+ 			<&lm75>,"reg:0", <&hdc100x>,"reg:0", <&sht3x>,"reg:0",
+-			<&ds1621>,"reg:0", <&bme680>,"reg:0";
++			<&ds1621>,"reg:0", <&bme680>,"reg:0", <&ccs811>,"reg:0",
++			<&bh1750>,"reg:0";
+ 		bme280 = <0>,"+0";
+ 		bmp085 = <0>,"+1";
+ 		bmp180 = <0>,"+2";
+@@ -283,5 +314,7 @@
+ 		bme680 = <0>,"+14";
+ 		sps30 = <0>,"+15";
+ 		sgp30 = <0>,"+16";
++		ccs811 = <0>, "+17";
++		bh1750 = <0>, "+18";
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0622-Add-Raspberry-Pi-PoE-HAT-support.patch b/target/linux/bcm27xx/patches-5.10/950-0622-Add-Raspberry-Pi-PoE-HAT-support.patch
new file mode 100644
index 0000000000..121914c6a6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0622-Add-Raspberry-Pi-PoE-HAT-support.patch
@@ -0,0 +1,394 @@
+From 2150bf813a64c18cdc56ae6b84036377c242cebd Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.com>
+Date: Mon, 2 Dec 2019 14:48:05 +0000
+Subject: [PATCH] Add Raspberry Pi PoE+ HAT support
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.com>
+---
+ drivers/hwmon/rpi-poe-fan.c                |  35 +++-
+ drivers/power/supply/Kconfig               |   6 +
+ drivers/power/supply/Makefile              |   1 +
+ drivers/power/supply/rpi_poe_power.c       | 227 +++++++++++++++++++++
+ include/soc/bcm2835/raspberrypi-firmware.h |   3 +-
+ 5 files changed, 261 insertions(+), 11 deletions(-)
+ create mode 100644 drivers/power/supply/rpi_poe_power.c
+
+--- a/drivers/hwmon/rpi-poe-fan.c
++++ b/drivers/hwmon/rpi-poe-fan.c
+@@ -28,6 +28,7 @@
+ struct rpi_poe_fan_ctx {
+ 	struct mutex lock;
+ 	struct rpi_firmware *fw;
++	u32 set_tag;
+ 	unsigned int pwm_value;
+ 	unsigned int def_pwm_value;
+ 	unsigned int rpi_poe_fan_state;
+@@ -43,13 +44,15 @@ struct fw_tag_data_s{
+ 	u32 ret;
+ };
+ 
+-static int write_reg(struct rpi_firmware *fw, u32 reg, u32 *val){
++static int write_reg(struct rpi_firmware *fw, u32 reg, u32 *val, u32 set_tag)
++{
+ 	struct fw_tag_data_s fw_tag_data = {
+ 		.reg = reg,
+ 		.val = *val
+ 	};
+ 	int ret;
+-	ret = rpi_firmware_property(fw, RPI_FIRMWARE_SET_POE_HAT_VAL,
++
++	ret = rpi_firmware_property(fw, set_tag,
+ 				    &fw_tag_data, sizeof(fw_tag_data));
+ 	if (ret) {
+ 		return ret;
+@@ -82,7 +85,7 @@ static int rpi_poe_reboot(struct notifie
+ 						   nb);
+ 
+ 	if (ctx->pwm_value != ctx->def_pwm_value)
+-		write_reg(ctx->fw, POE_CUR_PWM, &ctx->def_pwm_value);
++		write_reg(ctx->fw, POE_CUR_PWM, &ctx->def_pwm_value, ctx->set_tag);
+ 
+ 	return NOTIFY_DONE;
+ }
+@@ -95,7 +98,7 @@ static int  __set_pwm(struct rpi_poe_fan
+ 	if (ctx->pwm_value == pwm)
+ 		goto exit_set_pwm_err;
+ 
+-	ret = write_reg(ctx->fw, POE_CUR_PWM, &pwm);
++	ret = write_reg(ctx->fw, POE_CUR_PWM, &pwm, ctx->set_tag);
+ 	if (!ret)
+ 		ctx->pwm_value = pwm;
+ exit_set_pwm_err:
+@@ -110,7 +113,7 @@ static int  __set_def_pwm(struct rpi_poe
+ 	if (ctx->def_pwm_value == def_pwm)
+ 		goto exit_set_def_pwm_err;
+ 
+-	ret = write_reg(ctx->fw, POE_DEF_PWM, &def_pwm);
++	ret = write_reg(ctx->fw, POE_DEF_PWM, &def_pwm, ctx->set_tag);
+ 	if (!ret)
+ 		ctx->def_pwm_value = def_pwm;
+ exit_set_def_pwm_err:
+@@ -297,6 +300,7 @@ static int rpi_poe_fan_probe(struct plat
+ 	struct device *hwmon;
+ 	struct device_node *np = pdev->dev.of_node;
+ 	struct device_node *fw_node;
++	u32 revision;
+ 	int ret;
+ 
+ 	fw_node = of_parse_phandle(np, "firmware", 0);
+@@ -314,6 +318,17 @@ static int rpi_poe_fan_probe(struct plat
+ 	ctx->fw = rpi_firmware_get(fw_node);
+ 	if (!ctx->fw)
+ 		return -EPROBE_DEFER;
++	ret = rpi_firmware_property(ctx->fw,
++		RPI_FIRMWARE_GET_FIRMWARE_REVISION,
++		&revision, sizeof(revision));
++	if (ret) {
++		dev_err(&pdev->dev, "Failed to get firmware revision: %i\n", ret);
++		return ret;
++	}
++	if (revision < 0x60af72e8)
++		ctx->set_tag = RPI_FIRMWARE_SET_POE_HAT_VAL_OLD;
++	else
++		ctx->set_tag = RPI_FIRMWARE_SET_POE_HAT_VAL;
+ 
+ 	platform_set_drvdata(pdev, ctx);
+ 
+@@ -378,9 +393,9 @@ static int rpi_poe_fan_remove(struct pla
+ 
+ 	unregister_reboot_notifier(&ctx->nb);
+ 	thermal_cooling_device_unregister(ctx->cdev);
+-	if (ctx->pwm_value != value) {
+-		write_reg(ctx->fw, POE_CUR_PWM, &value);
+-	}
++	if (ctx->pwm_value != value)
++		write_reg(ctx->fw, POE_CUR_PWM, &value, ctx->set_tag);
++
+ 	return 0;
+ }
+ 
+@@ -392,7 +407,7 @@ static int rpi_poe_fan_suspend(struct de
+ 	int ret = 0;
+ 
+ 	if (ctx->pwm_value != value)
+-		ret = write_reg(ctx->fw, POE_CUR_PWM, &value);
++		ret = write_reg(ctx->fw, POE_CUR_PWM, &value, ctx->set_tag);
+ 	return ret;
+ }
+ 
+@@ -403,7 +418,7 @@ static int rpi_poe_fan_resume(struct dev
+ 	int ret = 0;
+ 
+ 	if (value != 0)
+-		ret = write_reg(ctx->fw, POE_CUR_PWM, &value);
++		ret = write_reg(ctx->fw, POE_CUR_PWM, &value, ctx->set_tag);
+ 
+ 	return ret;
+ }
+--- a/drivers/power/supply/Kconfig
++++ b/drivers/power/supply/Kconfig
+@@ -28,6 +28,12 @@ config POWER_SUPPLY_HWMON
+ 	  Say 'Y' here if you want power supplies to
+ 	  have hwmon sysfs interface too.
+ 
++config RPI_POE_POWER
++	tristate "Raspberry Pi PoE+ HAT power supply driver"
++	depends on RASPBERRYPI_FIRMWARE
++	help
++	  Say Y here to enable support for Raspberry Pi PoE+ (Power over Ethernet
++	  Plus) HAT current measurement.
+ 
+ config PDA_POWER
+ 	tristate "Generic PDA/phone power driver"
+--- a/drivers/power/supply/Makefile
++++ b/drivers/power/supply/Makefile
+@@ -9,6 +9,7 @@ obj-$(CONFIG_POWER_SUPPLY)	+= power_supp
+ obj-$(CONFIG_POWER_SUPPLY_HWMON) += power_supply_hwmon.o
+ obj-$(CONFIG_GENERIC_ADC_BATTERY)	+= generic-adc-battery.o
+ 
++obj-$(CONFIG_RPI_POE_POWER)	+= rpi_poe_power.o
+ obj-$(CONFIG_PDA_POWER)		+= pda_power.o
+ obj-$(CONFIG_APM_POWER)		+= apm_power.o
+ obj-$(CONFIG_AXP20X_POWER)	+= axp20x_usb_power.o
+--- /dev/null
++++ b/drivers/power/supply/rpi_poe_power.c
+@@ -0,0 +1,227 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * rpi-poe-power.c - Raspberry Pi PoE+ HAT power supply driver.
++ *
++ * Copyright (C) 2019 Raspberry Pi (Trading) Ltd.
++ * Based on axp20x_ac_power.c by Quentin Schulz <quentin.schulz@free-electrons.com>
++ *
++ * Author: Serge Schneider <serge@raspberrypi.org>
++ */
++
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/power_supply.h>
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
++#define RPI_POE_ADC_REG			0x2
++#define RPI_POE_FLAG_REG		0x4
++
++#define RPI_POE_FLAG_AT			BIT(0)
++#define RPI_POE_FLAG_OC			BIT(1)
++
++#define RPI_POE_CURRENT_AF_MAX	(2500 * 1000)
++#define RPI_POE_CURRENT_AT_MAX	(5000 * 1000)
++
++#define DRVNAME "rpi-poe-power-supply"
++
++struct rpi_poe_power_supply_ctx {
++	struct power_supply *supply;
++	struct rpi_firmware *fw;
++};
++
++struct fw_tag_data_s {
++	u32 reg;
++	u32 val;
++	u32 ret;
++};
++
++static int write_reg(struct rpi_firmware *fw, u32 reg, u32 *val)
++{
++	struct fw_tag_data_s fw_tag_data = {
++		.reg = reg,
++		.val = *val
++	};
++	int ret;
++
++	ret = rpi_firmware_property(fw, RPI_FIRMWARE_SET_POE_HAT_VAL,
++				    &fw_tag_data, sizeof(fw_tag_data));
++	if (ret)
++		return ret;
++	else if (fw_tag_data.ret)
++		return -EIO;
++	return 0;
++}
++
++static int read_reg(struct rpi_firmware *fw, u32 reg, u32 *val)
++{
++	struct fw_tag_data_s fw_tag_data = {
++		.reg = reg,
++		.val = *val
++	};
++	int ret;
++
++	ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_POE_HAT_VAL,
++				    &fw_tag_data, sizeof(fw_tag_data));
++	if (ret)
++		return ret;
++	else if (fw_tag_data.ret)
++		return -EIO;
++
++	*val = fw_tag_data.val;
++	return 0;
++}
++
++static int rpi_poe_power_supply_get_property(struct power_supply *psy,
++					enum power_supply_property psp,
++					union power_supply_propval *r_val)
++{
++	struct rpi_poe_power_supply_ctx *ctx = power_supply_get_drvdata(psy);
++	int ret;
++	unsigned int val = 0;
++
++	switch (psp) {
++	case POWER_SUPPLY_PROP_HEALTH:
++		ret = read_reg(ctx->fw, RPI_POE_FLAG_REG, &val);
++		if (ret)
++			return ret;
++
++		if (val & RPI_POE_FLAG_OC) {
++			r_val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
++			val = RPI_POE_FLAG_OC;
++			ret = write_reg(ctx->fw, RPI_POE_FLAG_REG, &val);
++			if (ret)
++				return ret;
++			return 0;
++		}
++
++		r_val->intval = POWER_SUPPLY_HEALTH_GOOD;
++		return 0;
++
++	case POWER_SUPPLY_PROP_ONLINE:
++		ret = read_reg(ctx->fw, RPI_POE_ADC_REG, &val);
++		if (ret)
++			return ret;
++
++		r_val->intval = (val > 5);
++		return 0;
++
++	case POWER_SUPPLY_PROP_CURRENT_AVG:
++		val = 50;
++		ret = read_reg(ctx->fw, RPI_POE_ADC_REG, &val);
++		if (ret)
++			return ret;
++		val = (val * 3300)/9821;
++		r_val->intval = val * 1000;
++		return 0;
++
++	case POWER_SUPPLY_PROP_CURRENT_NOW:
++		ret = read_reg(ctx->fw, RPI_POE_ADC_REG, &val);
++		if (ret)
++			return ret;
++		val = (val * 3300)/9821;
++		r_val->intval = val * 1000;
++		return 0;
++
++	case POWER_SUPPLY_PROP_CURRENT_MAX:
++		ret = read_reg(ctx->fw, RPI_POE_FLAG_REG, &val);
++		if (ret)
++			return ret;
++
++		if (val & RPI_POE_FLAG_AT) {
++			r_val->intval = RPI_POE_CURRENT_AT_MAX;
++			return 0;
++		}
++		r_val->intval = RPI_POE_CURRENT_AF_MAX;
++		return 0;
++
++	default:
++		return -EINVAL;
++	}
++
++	return -EINVAL;
++}
++
++static enum power_supply_property rpi_poe_power_supply_properties[] = {
++	POWER_SUPPLY_PROP_HEALTH,
++	POWER_SUPPLY_PROP_ONLINE,
++	POWER_SUPPLY_PROP_CURRENT_AVG,
++	POWER_SUPPLY_PROP_CURRENT_NOW,
++	POWER_SUPPLY_PROP_CURRENT_MAX,
++};
++
++static const struct power_supply_desc rpi_poe_power_supply_desc = {
++	.name = "rpi-poe",
++	.type = POWER_SUPPLY_TYPE_MAINS,
++	.properties = rpi_poe_power_supply_properties,
++	.num_properties = ARRAY_SIZE(rpi_poe_power_supply_properties),
++	.get_property = rpi_poe_power_supply_get_property,
++};
++
++static int rpi_poe_power_supply_probe(struct platform_device *pdev)
++{
++	struct power_supply_config psy_cfg = {};
++	struct rpi_poe_power_supply_ctx *ctx;
++	struct device_node *fw_node;
++	u32 revision;
++
++	if (!of_device_is_available(pdev->dev.of_node))
++		return -ENODEV;
++
++	fw_node = of_parse_phandle(pdev->dev.of_node, "firmware", 0);
++	if (!fw_node) {
++		dev_err(&pdev->dev, "Missing firmware node\n");
++		return -ENOENT;
++	}
++
++	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
++	if (!ctx)
++		return -ENOMEM;
++
++	ctx->fw = rpi_firmware_get(fw_node);
++	if (!ctx->fw)
++		return -EPROBE_DEFER;
++	if (rpi_firmware_property(ctx->fw,
++			RPI_FIRMWARE_GET_FIRMWARE_REVISION,
++			&revision, sizeof(revision))) {
++		dev_err(&pdev->dev, "Failed to get firmware revision\n");
++		return -ENOENT;
++	}
++	if (revision < 0x60af72e8) {
++		dev_err(&pdev->dev, "Unsupported firmware\n");
++		return -ENOENT;
++	}
++	platform_set_drvdata(pdev, ctx);
++
++	psy_cfg.of_node = pdev->dev.of_node;
++	psy_cfg.drv_data = ctx;
++
++	ctx->supply = devm_power_supply_register(&pdev->dev,
++						   &rpi_poe_power_supply_desc,
++						   &psy_cfg);
++	if (IS_ERR(ctx->supply))
++		return PTR_ERR(ctx->supply);
++
++	return 0;
++}
++
++static const struct of_device_id of_rpi_poe_power_supply_match[] = {
++	{ .compatible = "raspberrypi,rpi-poe-power-supply", },
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, of_rpi_poe_power_supply_match);
++
++static struct platform_driver rpi_poe_power_supply_driver = {
++	.probe = rpi_poe_power_supply_probe,
++	.driver = {
++		.name = DRVNAME,
++		.of_match_table = of_rpi_poe_power_supply_match
++	},
++};
++
++module_platform_driver(rpi_poe_power_supply_driver);
++
++MODULE_AUTHOR("Serge Schneider <serge@raspberrypi.org>");
++MODULE_ALIAS("platform:" DRVNAME);
++MODULE_DESCRIPTION("Raspberry Pi PoE+ HAT power supply driver");
++MODULE_LICENSE("GPL");
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -94,7 +94,8 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_GET_PERIPH_REG =                         0x00030045,
+ 	RPI_FIRMWARE_SET_PERIPH_REG =                         0x00038045,
+ 	RPI_FIRMWARE_GET_POE_HAT_VAL =                        0x00030049,
+-	RPI_FIRMWARE_SET_POE_HAT_VAL =                        0x00030050,
++	RPI_FIRMWARE_SET_POE_HAT_VAL =                        0x00038049,
++	RPI_FIRMWARE_SET_POE_HAT_VAL_OLD =                    0x00030050,
+ 	RPI_FIRMWARE_NOTIFY_XHCI_RESET =                      0x00030058,
+ 	RPI_FIRMWARE_GET_REBOOT_FLAGS =                       0x00030064,
+ 	RPI_FIRMWARE_SET_REBOOT_FLAGS =                       0x00038064,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0623-overlays-Add-rpi-poe-plus-overlay.patch b/target/linux/bcm27xx/patches-5.10/950-0623-overlays-Add-rpi-poe-plus-overlay.patch
new file mode 100644
index 0000000000..67b69d85d0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0623-overlays-Add-rpi-poe-plus-overlay.patch
@@ -0,0 +1,75 @@
+From 022c80564d30bba83b82a0ccdff74648e47862dd Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.com>
+Date: Mon, 2 Dec 2019 14:48:05 +0000
+Subject: [PATCH] overlays: Add rpi-poe-plus overlay
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 21 +++++++++++++++++++
+ .../dts/overlays/rpi-poe-plus-overlay.dts     | 19 +++++++++++++++++
+ 3 files changed, 41 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -156,6 +156,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	rpi-display.dtbo \
+ 	rpi-ft5406.dtbo \
+ 	rpi-poe.dtbo \
++	rpi-poe-plus.dtbo \
+ 	rpi-proto.dtbo \
+ 	rpi-sense.dtbo \
+ 	rpi-tv.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2505,6 +2505,27 @@ Params: poe_fan_temp0           Temperat
+                                 the fan slows down (default 5000)
+ 
+ 
++Name:   rpi-poe-plus
++Info:   Raspberry Pi PoE+ HAT fan
++Load:   dtoverlay=rpi-poe-plus,<param>[=<val>]
++Params: poe_fan_temp0           Temperature (in millicelcius) at which the fan
++                                turns on (default 40000)
++        poe_fan_temp0_hyst      Temperature delta (in millicelcius) at which
++                                the fan turns off (default 2000)
++        poe_fan_temp1           Temperature (in millicelcius) at which the fan
++                                speeds up (default 45000)
++        poe_fan_temp1_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 2000)
++        poe_fan_temp2           Temperature (in millicelcius) at which the fan
++                                speeds up (default 50000)
++        poe_fan_temp2_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 2000)
++        poe_fan_temp3           Temperature (in millicelcius) at which the fan
++                                speeds up (default 55000)
++        poe_fan_temp3_hyst      Temperature delta (in millicelcius) at which
++                                the fan slows down (default 5000)
++
++
+ Name:   rpi-proto
+ Info:   Configures the RPi Proto audio card
+ Load:   dtoverlay=rpi-proto
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
+@@ -0,0 +1,19 @@
++// SPDX-License-Identifier: (GPL-2.0 OR MIT)
++// Overlay for the Raspberry Pi PoE+ HAT.
++
++#include "rpi-poe-overlay.dts"
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@3 {
++		target-path = "/";
++		__overlay__ {
++			rpi_poe_power_supply: rpi-poe-power-supply@0 {
++				compatible = "raspberrypi,rpi-poe-power-supply";
++				firmware = <&firmware>;
++				status = "okay";
++			};
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch b/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch
new file mode 100644
index 0000000000..6487b5a728
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0624-drm-vc4-FKMS-Change-of-Broadcast-RGB-mode-needs-a-mo.patch
@@ -0,0 +1,62 @@
+From caa5d5dac396f5bfaef8bd65c1c39f4ff03a504a Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Fri, 21 May 2021 11:15:04 +0100
+Subject: [PATCH] drm/vc4: FKMS: Change of Broadcast RGB mode needs a
+ mode change
+
+The Broadcast RGB (aka HDMI limited/full range) property is only
+notified to the firmware on mode change, so this needs to be
+signalled when set.
+
+https://github.com/raspberrypi/firmware/issues/1580
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 29 ++++++++++++++++++++++++++
+ 1 file changed, 29 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -1549,6 +1549,34 @@ int vc4_connector_atomic_set_property(st
+ 	return -EINVAL;
+ }
+ 
++int vc4_connector_atomic_check(struct drm_connector *connector,
++			       struct drm_atomic_state *state)
++{
++	struct drm_connector_state *old_state =
++		drm_atomic_get_old_connector_state(state, connector);
++	struct vc4_fkms_connector_state *vc4_old_state =
++					to_vc4_fkms_connector_state(old_state);
++	struct drm_connector_state *new_state =
++		drm_atomic_get_new_connector_state(state, connector);
++	struct vc4_fkms_connector_state *vc4_new_state =
++					to_vc4_fkms_connector_state(new_state);
++	struct drm_crtc *crtc = new_state->crtc;
++
++	if (!crtc)
++		return 0;
++
++	if (vc4_old_state->broadcast_rgb != vc4_new_state->broadcast_rgb) {
++		struct drm_crtc_state *crtc_state;
++
++		crtc_state = drm_atomic_get_crtc_state(state, crtc);
++		if (IS_ERR(crtc_state))
++			return PTR_ERR(crtc_state);
++
++		crtc_state->mode_changed = true;
++	}
++	return 0;
++}
++
+ static void vc4_hdmi_connector_reset(struct drm_connector *connector)
+ {
+ 	drm_atomic_helper_connector_reset(connector);
+@@ -1569,6 +1597,7 @@ static const struct drm_connector_funcs
+ static const struct drm_connector_helper_funcs vc4_fkms_connector_helper_funcs = {
+ 	.get_modes = vc4_fkms_connector_get_modes,
+ 	.best_encoder = vc4_fkms_connector_best_encoder,
++	.atomic_check = vc4_connector_atomic_check,
+ };
+ 
+ static const struct drm_connector_helper_funcs vc4_fkms_lcd_conn_helper_funcs = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0625-overlays-Add-ssd1331-spi-support-for-OLED-screen.patch b/target/linux/bcm27xx/patches-5.10/950-0625-overlays-Add-ssd1331-spi-support-for-OLED-screen.patch
new file mode 100644
index 0000000000..e04a725cc3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0625-overlays-Add-ssd1331-spi-support-for-OLED-screen.patch
@@ -0,0 +1,129 @@
+From 32a85be60c722eff17ccade5d3e12971aad15f61 Mon Sep 17 00:00:00 2001
+From: Alex Kurichenko <oleksandr.kurichenko@deluxe.com>
+Date: Tue, 1 Jun 2021 01:53:47 +0300
+Subject: [PATCH] overlays: Add ssd1331-spi support for OLED screen
+
+Signed-off-by: Alex Kurichenko <oleksandr.kurichenko@deluxe.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 11 +++
+ .../boot/dts/overlays/ssd1331-spi-overlay.dts | 83 +++++++++++++++++++
+ 3 files changed, 95 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/ssd1331-spi-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -196,6 +196,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	spi6-2cs.dtbo \
+ 	ssd1306.dtbo \
+ 	ssd1306-spi.dtbo \
++	ssd1331-spi.dtbo \
+ 	ssd1351-spi.dtbo \
+ 	superaudioboard.dtbo \
+ 	sx150x.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3015,6 +3015,17 @@ Params: speed                   SPI bus
+         height                  Display height (32 or 64; default 64)
+ 
+ 
++Name:   ssd1331-spi
++Info:   Overlay for SSD1331 OLED via SPI using fbtft staging driver.
++Load:   dtoverlay=ssd1331-spi,<param>=<val>
++Params: speed                   SPI bus speed (default 4500000)
++        rotate                  Display rotation (0, 90, 180 or 270; default 0)
++        fps                     Delay between frame updates (default 25)
++        debug                   Debug output level (0-7; default 0)
++        dc_pin                  GPIO pin for D/C (default 24)
++        reset_pin               GPIO pin for RESET (default 25)
++
++
+ Name:   ssd1351-spi
+ Info:   Overlay for SSD1351 OLED via SPI using fbtft staging driver.
+ Load:   dtoverlay=ssd1351-spi,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ssd1331-spi-overlay.dts
+@@ -0,0 +1,83 @@
++/*
++ * Device Tree overlay for SSD1331 based SPI OLED display
++ *
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target = <&spi0>;
++                __overlay__ {
++                        status = "okay";
++                };
++        };
++
++        fragment@1 {
++                target = <&spidev0>;
++                __overlay__ {
++                        status = "disabled";
++                };
++        };
++
++        fragment@2 {
++                target = <&spidev1>;
++                __overlay__ {
++                        status = "disabled";
++                };
++        };
++
++        fragment@3 {
++                target = <&gpio>;
++                __overlay__ {
++                        ssd1331_pins: ssd1331_pins {
++                                brcm,pins = <25 24>;
++                                brcm,function = <1 1>; /* out out */
++                        };
++                };
++        };
++
++        fragment@4 {
++                target = <&spi0>;
++                __overlay__ {
++                        /* needed to avoid dtc warning */
++                        #address-cells = <1>;
++                        #size-cells = <0>;
++
++                        ssd1331: ssd1331@0{
++                                compatible = "solomon,ssd1331";
++                                reg = <0>;
++                                pinctrl-names = "default";
++                                pinctrl-0 = <&ssd1331_pins>;
++
++                                spi-max-frequency = <4500000>;
++                                bgr = <0>;
++                                bpp = <16>;
++                                rotate = <0>;
++                                fps = <25>;
++                                buswidth = <8>;
++                                reset-gpios = <&gpio 25 1>;
++                                dc-gpios = <&gpio 24 0>;
++                                debug = <0>;
++
++                                solomon,height = <64>;
++                                solomon,width = <96>;
++                                solomon,page-offset = <0>;
++                        };
++                };
++        };
++
++        __overrides__ {
++                speed     = <&ssd1331>,"spi-max-frequency:0";
++                rotate    = <&ssd1331>,"rotate:0";
++                fps       = <&ssd1331>,"fps:0";
++                debug     = <&ssd1331>,"debug:0";
++                dc_pin    = <&ssd1331>,"dc-gpios:4",
++                            <&ssd1331_pins>,"brcm,pins:4";
++                reset_pin = <&ssd1331>,"reset-gpios:4",
++                            <&ssd1331_pins>,"brcm,pins:0";
++        };
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0626-Fixes-an-onboard-clock-detection-problem-of-the-PRO-.patch b/target/linux/bcm27xx/patches-5.10/950-0626-Fixes-an-onboard-clock-detection-problem-of-the-PRO-.patch
new file mode 100644
index 0000000000..cde587d00d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0626-Fixes-an-onboard-clock-detection-problem-of-the-PRO-.patch
@@ -0,0 +1,38 @@
+From d2a6770500f0f284850834ec08fbee5fd6aaee3e Mon Sep 17 00:00:00 2001
+From: Joerg Schambacher <joerg@i2audio.com>
+Date: Thu, 10 Jun 2021 13:14:05 +0200
+Subject: [PATCH] Fixes an onboard clock detection problem of the PRO
+ versions
+
+Increasing the sleep time after clock selection to 3-4ms
+allows the correct detection of all combinations of DAC+ Pro
+and DAC+ADC Pro sound cards and the various PI revisions.
+
+Signed-off-by: Joerg Schambacher <joerg@hifiberry.com>
+---
+ sound/soc/bcm/hifiberry_dacplus.c       | 2 +-
+ sound/soc/bcm/hifiberry_dacplusadcpro.c | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/sound/soc/bcm/hifiberry_dacplus.c
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -111,7 +111,7 @@ static void snd_rpi_hifiberry_dacplus_se
+ 		snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+ 		break;
+ 	}
+-	usleep_range(2000, 2100);
++	usleep_range(3000, 4000);
+ }
+ 
+ static void snd_rpi_hifiberry_dacplus_clk_gpio(struct snd_soc_component *component)
+--- a/sound/soc/bcm/hifiberry_dacplusadcpro.c
++++ b/sound/soc/bcm/hifiberry_dacplusadcpro.c
+@@ -190,7 +190,7 @@ static void snd_rpi_hifiberry_dacplusadc
+ 				PCM512x_GPIO_CONTROL_1, 0x24, 0x04);
+ 		break;
+ 	}
+-	usleep_range(2000, 2100);
++	usleep_range(3000, 4000);
+ }
+ 
+ static void snd_rpi_hifiberry_dacplusadcpro_clk_gpio(struct snd_soc_component *component)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0627-bcm2835-Allow-compressed-frames-to-set-sizeimage-438.patch b/target/linux/bcm27xx/patches-5.10/950-0627-bcm2835-Allow-compressed-frames-to-set-sizeimage-438.patch
new file mode 100644
index 0000000000..c0c86bd8cd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0627-bcm2835-Allow-compressed-frames-to-set-sizeimage-438.patch
@@ -0,0 +1,47 @@
+From 9eaafa9f93c9a97498b73583a70b9e238cbe4536 Mon Sep 17 00:00:00 2001
+From: jc-kynesim <jc@kynesim.co.uk>
+Date: Fri, 11 Jun 2021 15:14:31 +0100
+Subject: [PATCH] bcm2835: Allow compressed frames to set sizeimage
+ (#4386)
+
+Allow the user to set sizeimage in TRY_FMT and S_FMT if the format
+flags have V4L2_FMT_FLAG_COMPRESSED set
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ .../bcm2835-codec/bcm2835-v4l2-codec.c          | 17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
++++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
+@@ -1291,6 +1291,8 @@ static int vidioc_g_fmt_vid_cap(struct f
+ static int vidioc_try_fmt(struct bcm2835_codec_ctx *ctx, struct v4l2_format *f,
+ 			  struct bcm2835_codec_fmt *fmt)
+ {
++	unsigned int sizeimage;
++
+ 	/*
+ 	 * The V4L2 specification requires the driver to correct the format
+ 	 * struct if any of the dimensions is unsupported
+@@ -1319,9 +1321,18 @@ static int vidioc_try_fmt(struct bcm2835
+ 	f->fmt.pix_mp.num_planes = 1;
+ 	f->fmt.pix_mp.plane_fmt[0].bytesperline =
+ 		get_bytesperline(f->fmt.pix_mp.width, fmt);
+-	f->fmt.pix_mp.plane_fmt[0].sizeimage =
+-		get_sizeimage(f->fmt.pix_mp.plane_fmt[0].bytesperline,
+-			      f->fmt.pix_mp.width, f->fmt.pix_mp.height, fmt);
++	sizeimage = get_sizeimage(f->fmt.pix_mp.plane_fmt[0].bytesperline,
++				  f->fmt.pix_mp.width, f->fmt.pix_mp.height,
++				  fmt);
++	/*
++	 * Drivers must set sizeimage for uncompressed formats
++	 * Compressed formats allow the client to request an alternate
++	 * size for the buffer.
++	 */
++	if (!(fmt->flags & V4L2_FMT_FLAG_COMPRESSED) ||
++	    f->fmt.pix_mp.plane_fmt[0].sizeimage < sizeimage)
++		f->fmt.pix_mp.plane_fmt[0].sizeimage = sizeimage;
++
+ 	memset(f->fmt.pix_mp.plane_fmt[0].reserved, 0,
+ 	       sizeof(f->fmt.pix_mp.plane_fmt[0].reserved));
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0628-media-i2c-imx477-Fix-for-long-exposure-limit-calcula.patch b/target/linux/bcm27xx/patches-5.10/950-0628-media-i2c-imx477-Fix-for-long-exposure-limit-calcula.patch
new file mode 100644
index 0000000000..769e592657
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0628-media-i2c-imx477-Fix-for-long-exposure-limit-calcula.patch
@@ -0,0 +1,26 @@
+From cd306429474a0265660759ab12024d8ff978d586 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Fri, 11 Jun 2021 12:47:07 +0100
+Subject: [PATCH] media: i2c: imx477: Fix for long exposure limit
+ calculations
+
+Do not scale IMX477_EXPOSURE_OFFSET with the long exposure factor during
+the limit calculations. This allows larger exposure times, and does seem to be
+what the sensor is doing internally.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -1282,7 +1282,7 @@ static void imx477_adjust_exposure_range
+ 
+ 	/* Honour the VBLANK limits when setting exposure. */
+ 	exposure_max = imx477->mode->height + imx477->vblank->val -
+-		       (IMX477_EXPOSURE_OFFSET << imx477->long_exp_shift);
++		       IMX477_EXPOSURE_OFFSET;
+ 	exposure_def = min(exposure_max, imx477->exposure->val);
+ 	__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
+ 				 exposure_max, imx477->exposure->step,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch b/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch
new file mode 100644
index 0000000000..c40f7b04a6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch
@@ -0,0 +1,43 @@
+From c6ae428b0fa43bee35aa6de4fb2f5d5cc81460a4 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 14 Jun 2021 15:07:38 +0100
+Subject: [PATCH] overlays: ghost-amp: Change early-disable sequence
+
+In the event that the ENABLE signal from the codec goes low before
+RELAY2 has been enabled, wait until the full 1000ms has elapsed then
+enable RELAY2 and jump to amp_on_wait, i.e. as if output had been
+fully enabled then disabled, rather than returning to the amp_off
+idle state.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/ghost-amp-overlay.dts | 14 ++++++++++----
+ 1 file changed, 10 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -82,14 +82,20 @@
+ 
+ 				amp_on_1 {
+ 					set = <RELAY1 1>;
+-					amp_on = <GF_DELAY 1000>;
+-					amp_off = <ENABLE 0>;
++					amp_on_2 = <GF_DELAY 1000>;
++					amp_off = <GF_SHUTDOWN 0>;
++					fault = <FAULT 1>;
++				};
++
++				amp_on_2 {
++					set = <RELAY2 1>;
++					amp_on_wait = <ENABLE 0>;
++					amp_on = <GF_DELAY 1>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+ 				amp_on {
+-					set = <RELAY2 1>,
+-					      <RELAYSSR 1>;
++					set = <RELAYSSR 1>;
+ 					amp_on_wait = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0630-drm-vc4-Make-vc4_crtc_get_encoder-public.patch b/target/linux/bcm27xx/patches-5.10/950-0630-drm-vc4-Make-vc4_crtc_get_encoder-public.patch
new file mode 100644
index 0000000000..a113a95d29
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0630-drm-vc4-Make-vc4_crtc_get_encoder-public.patch
@@ -0,0 +1,45 @@
+From 68f513af115c2ff6e5869f7f78d986d6121a122b Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 26 May 2021 16:07:01 +0200
+Subject: [PATCH] drm/vc4: Make vc4_crtc_get_encoder public
+
+We'll need that function in vc4_kms to compute the core clock rate
+requirements.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 8 ++++----
+ drivers/gpu/drm/vc4/vc4_drv.h  | 5 +++++
+ 2 files changed, 9 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -279,10 +279,10 @@ static u32 vc4_crtc_get_fifo_full_level_
+  * allows drivers to push pixels to more than one encoder from the
+  * same CRTC.
+  */
+-static struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
+-						struct drm_atomic_state *state,
+-						struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
+-											 struct drm_connector *connector))
++struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
++					 struct drm_atomic_state *state,
++					 struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
++										  struct drm_connector *connector))
+ {
+ 	struct drm_connector *connector;
+ 	struct drm_connector_list_iter conn_iter;
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -522,6 +522,11 @@ vc4_crtc_to_vc4_pv_data(const struct vc4
+ 	return container_of(data, struct vc4_pv_data, base);
+ }
+ 
++struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
++					 struct drm_atomic_state *state,
++					 struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
++										  struct drm_connector *connector));
++
+ struct vc4_crtc_state {
+ 	struct drm_crtc_state base;
+ 	/* Dlist area for this CRTC configuration. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0631-ASoC-codec-hdmi-codec-Support-IEC958-encoded-PCM-for.patch b/target/linux/bcm27xx/patches-5.10/950-0631-ASoC-codec-hdmi-codec-Support-IEC958-encoded-PCM-for.patch
new file mode 100644
index 0000000000..cb9bbe350a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0631-ASoC-codec-hdmi-codec-Support-IEC958-encoded-PCM-for.patch
@@ -0,0 +1,53 @@
+From ab79274c7bab8e16822077ae0850e6cf9b2ec1b4 Mon Sep 17 00:00:00 2001
+From: Sia Jee Heng <jee.heng.sia@intel.com>
+Date: Thu, 4 Feb 2021 09:42:55 +0800
+Subject: [PATCH] ASoC: codec: hdmi-codec: Support IEC958 encoded PCM
+ format
+
+Existing hdmi-codec driver only support standard pcm format.
+Support of IEC958 encoded format pass from ALSA IEC958 plugin is needed
+so that the IEC958 encoded data can be streamed to the HDMI chip.
+
+Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
+Link: https://lore.kernel.org/r/20210204014258.10197-2-jee.heng.sia@intel.com
+Signed-off-by: Mark Brown <broonie@kernel.org>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ include/sound/hdmi-codec.h    | 5 +++++
+ sound/soc/codecs/hdmi-codec.c | 4 +++-
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+--- a/include/sound/hdmi-codec.h
++++ b/include/sound/hdmi-codec.h
+@@ -34,6 +34,11 @@ struct hdmi_codec_daifmt {
+ 	unsigned int frame_clk_inv:1;
+ 	unsigned int bit_clk_master:1;
+ 	unsigned int frame_clk_master:1;
++	/* bit_fmt could be standard PCM format or
++	 * IEC958 encoded format. ALSA IEC958 plugin will pass
++	 * IEC958_SUBFRAME format to the underneath driver.
++	 */
++	snd_pcm_format_t bit_fmt;
+ };
+ 
+ /*
+--- a/sound/soc/codecs/hdmi-codec.c
++++ b/sound/soc/codecs/hdmi-codec.c
+@@ -487,6 +487,7 @@ static int hdmi_codec_hw_params(struct s
+ 	hp.sample_rate = params_rate(params);
+ 	hp.channels = params_channels(params);
+ 
++	cf->bit_fmt = params_format(params);
+ 	return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,
+ 				       cf, &hp);
+ }
+@@ -615,7 +616,8 @@ static const struct snd_soc_dai_ops hdmi
+ 			 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\
+ 			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\
+ 			 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\
+-			 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE)
++			 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\
++			 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
+ 
+ static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ 			      struct snd_soc_dai *dai)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0632-ASoC-hdmi-codec-Rework-to-support-more-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0632-ASoC-hdmi-codec-Rework-to-support-more-controls.patch
new file mode 100644
index 0000000000..b0c403304f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0632-ASoC-hdmi-codec-Rework-to-support-more-controls.patch
@@ -0,0 +1,76 @@
+From 0ddc79efb48c97f0e678807fbe2471f122fd41f6 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 28 Apr 2021 11:56:26 +0200
+Subject: [PATCH] ASoC: hdmi-codec: Rework to support more controls
+
+We're going to add more controls to support the IEC958 output, so let's
+rework the control registration a bit to support more of them.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ sound/soc/codecs/hdmi-codec.c | 41 ++++++++++++++++++++++-------------
+ 1 file changed, 26 insertions(+), 15 deletions(-)
+
+--- a/sound/soc/codecs/hdmi-codec.c
++++ b/sound/soc/codecs/hdmi-codec.c
+@@ -619,21 +619,23 @@ static const struct snd_soc_dai_ops hdmi
+ 			 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\
+ 			 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
+ 
++struct snd_kcontrol_new hdmi_codec_controls[] = {
++	{
++		.access	= (SNDRV_CTL_ELEM_ACCESS_READ |
++			   SNDRV_CTL_ELEM_ACCESS_VOLATILE),
++		.iface	= SNDRV_CTL_ELEM_IFACE_PCM,
++		.name	= "ELD",
++		.info	= hdmi_eld_ctl_info,
++		.get	= hdmi_eld_ctl_get,
++	},
++};
++
+ static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ 			      struct snd_soc_dai *dai)
+ {
+ 	struct snd_soc_dai_driver *drv = dai->driver;
+ 	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
+-	struct snd_kcontrol *kctl;
+-	struct snd_kcontrol_new hdmi_eld_ctl = {
+-		.access	= SNDRV_CTL_ELEM_ACCESS_READ |
+-			  SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+-		.iface	= SNDRV_CTL_ELEM_IFACE_PCM,
+-		.name	= "ELD",
+-		.info	= hdmi_eld_ctl_info,
+-		.get	= hdmi_eld_ctl_get,
+-		.device	= rtd->pcm->device,
+-	};
++	unsigned int i;
+ 	int ret;
+ 
+ 	ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
+@@ -650,12 +652,21 @@ static int hdmi_codec_pcm_new(struct snd
+ 	hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
+ 	hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
+ 
+-	/* add ELD ctl with the device number corresponding to the PCM stream */
+-	kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component);
+-	if (!kctl)
+-		return -ENOMEM;
++	for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) {
++		struct snd_kcontrol *kctl;
++
++		/* add ELD ctl with the device number corresponding to the PCM stream */
++		kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);
++		if (!kctl)
++			return -ENOMEM;
++
++		kctl->id.device = rtd->pcm->device;
++		ret = snd_ctl_add(rtd->card->snd_card, kctl);
++		if (ret < 0)
++			return ret;
++	}
+ 
+-	return snd_ctl_add(rtd->card->snd_card, kctl);
++	return 0;
+ }
+ 
+ static int hdmi_dai_probe(struct snd_soc_dai *dai)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0633-snd-iec958-split-status-creation-and-fill.patch b/target/linux/bcm27xx/patches-5.10/950-0633-snd-iec958-split-status-creation-and-fill.patch
new file mode 100644
index 0000000000..3ea53da658
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0633-snd-iec958-split-status-creation-and-fill.patch
@@ -0,0 +1,209 @@
+From 5dea9e48e2a2bd39524e21c1a743f08edd8e4ef6 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 28 Apr 2021 15:29:13 +0200
+Subject: [PATCH] snd: iec958: split status creation and fill
+
+In some situations, like a codec probe, we need to provide an IEC status
+default but don't have access to the sampling rate and width yet since
+no stream has been configured yet.
+
+Each and every driver has its own default, whereas the core iec958 code
+also has some buried in the snd_pcm_create_iec958_consumer functions.
+
+Let's split these functions in two to provide a default that doesn't
+rely on the sampling rate and width, and another function to fill them
+when available.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ include/sound/pcm_iec958.h |   8 +++
+ sound/core/pcm_iec958.c    | 129 +++++++++++++++++++++++++------------
+ 2 files changed, 95 insertions(+), 42 deletions(-)
+
+--- a/include/sound/pcm_iec958.h
++++ b/include/sound/pcm_iec958.h
+@@ -4,6 +4,14 @@
+ 
+ #include <linux/types.h>
+ 
++int snd_pcm_create_iec958_consumer_default(u8 *cs, size_t len);
++
++int snd_pcm_fill_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs,
++				 size_t len);
++
++int snd_pcm_fill_iec958_consumer_hw_params(struct snd_pcm_hw_params *params,
++					   u8 *cs, size_t len);
++
+ int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs,
+ 	size_t len);
+ 
+--- a/sound/core/pcm_iec958.c
++++ b/sound/core/pcm_iec958.c
+@@ -9,41 +9,68 @@
+ #include <sound/pcm_params.h>
+ #include <sound/pcm_iec958.h>
+ 
+-static int create_iec958_consumer(uint rate, uint sample_width,
+-				  u8 *cs, size_t len)
++int snd_pcm_create_iec958_consumer_default(u8 *cs, size_t len)
+ {
+-	unsigned int fs, ws;
+-
+ 	if (len < 4)
+ 		return -EINVAL;
+ 
+-	switch (rate) {
+-	case 32000:
+-		fs = IEC958_AES3_CON_FS_32000;
+-		break;
+-	case 44100:
+-		fs = IEC958_AES3_CON_FS_44100;
+-		break;
+-	case 48000:
+-		fs = IEC958_AES3_CON_FS_48000;
+-		break;
+-	case 88200:
+-		fs = IEC958_AES3_CON_FS_88200;
+-		break;
+-	case 96000:
+-		fs = IEC958_AES3_CON_FS_96000;
+-		break;
+-	case 176400:
+-		fs = IEC958_AES3_CON_FS_176400;
+-		break;
+-	case 192000:
+-		fs = IEC958_AES3_CON_FS_192000;
+-		break;
+-	default:
++	memset(cs, 0, len);
++
++	cs[0] = IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_NONE;
++	cs[1] = IEC958_AES1_CON_GENERAL;
++	cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;
++	cs[3] = IEC958_AES3_CON_CLOCK_1000PPM | IEC958_AES3_CON_FS_NOTID;
++
++	if (len > 4)
++		cs[4] = IEC958_AES4_CON_WORDLEN_NOTID;
++
++	return len;
++}
++EXPORT_SYMBOL(snd_pcm_create_iec958_consumer_default);
++
++static int fill_iec958_consumer(uint rate, uint sample_width,
++				u8 *cs, size_t len)
++{
++	if (len < 4)
+ 		return -EINVAL;
++
++	if ((cs[3] & IEC958_AES3_CON_FS) == IEC958_AES3_CON_FS_NOTID) {
++		unsigned int fs;
++
++		switch (rate) {
++			case 32000:
++				fs = IEC958_AES3_CON_FS_32000;
++				break;
++			case 44100:
++				fs = IEC958_AES3_CON_FS_44100;
++				break;
++			case 48000:
++				fs = IEC958_AES3_CON_FS_48000;
++				break;
++			case 88200:
++				fs = IEC958_AES3_CON_FS_88200;
++				break;
++			case 96000:
++				fs = IEC958_AES3_CON_FS_96000;
++				break;
++			case 176400:
++				fs = IEC958_AES3_CON_FS_176400;
++				break;
++			case 192000:
++				fs = IEC958_AES3_CON_FS_192000;
++				break;
++			default:
++				return -EINVAL;
++		}
++
++		cs[3] &= ~IEC958_AES3_CON_FS;
++		cs[3] |= fs;
+ 	}
+ 
+-	if (len > 4) {
++	if (len > 4 &&
++	    (cs[4] & IEC958_AES4_CON_WORDLEN) == IEC958_AES4_CON_WORDLEN_NOTID) {
++		unsigned int ws;
++
+ 		switch (sample_width) {
+ 		case 16:
+ 			ws = IEC958_AES4_CON_WORDLEN_20_16;
+@@ -64,20 +91,29 @@ static int create_iec958_consumer(uint r
+ 		default:
+ 			return -EINVAL;
+ 		}
+-	}
+ 
+-	memset(cs, 0, len);
++		cs[4] &= ~IEC958_AES4_CON_WORDLEN;
++		cs[4] |= ws;
++	}
+ 
+-	cs[0] = IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_NONE;
+-	cs[1] = IEC958_AES1_CON_GENERAL;
+-	cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;
+-	cs[3] = IEC958_AES3_CON_CLOCK_1000PPM | fs;
++	return len;
++}
+ 
+-	if (len > 4)
+-		cs[4] = ws;
++int snd_pcm_fill_iec958_consumer_hw_params(struct snd_pcm_hw_params *params,
++					   u8 *cs, size_t len)
++{
++	return fill_iec958_consumer(params_rate(params), params_width(params), cs, len);
++}
++EXPORT_SYMBOL(snd_pcm_fill_iec958_consumer_hw_params);
+ 
+-	return len;
++int snd_pcm_fill_iec958_consumer(struct snd_pcm_runtime *runtime,
++				 u8 *cs, size_t len)
++{
++	return fill_iec958_consumer(runtime->rate,
++				    snd_pcm_format_width(runtime->format),
++				    cs, len);
+ }
++EXPORT_SYMBOL(snd_pcm_fill_iec958_consumer);
+ 
+ /**
+  * snd_pcm_create_iec958_consumer - create consumer format IEC958 channel status
+@@ -95,9 +131,13 @@ static int create_iec958_consumer(uint r
+ int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs,
+ 	size_t len)
+ {
+-	return create_iec958_consumer(runtime->rate,
+-				      snd_pcm_format_width(runtime->format),
+-				      cs, len);
++	int ret;
++
++	ret = snd_pcm_create_iec958_consumer_default(cs, len);
++	if (ret < 0)
++		return ret;
++
++	return snd_pcm_fill_iec958_consumer(runtime, cs, len);
+ }
+ EXPORT_SYMBOL(snd_pcm_create_iec958_consumer);
+ 
+@@ -117,7 +157,12 @@ EXPORT_SYMBOL(snd_pcm_create_iec958_cons
+ int snd_pcm_create_iec958_consumer_hw_params(struct snd_pcm_hw_params *params,
+ 					     u8 *cs, size_t len)
+ {
+-	return create_iec958_consumer(params_rate(params), params_width(params),
+-				      cs, len);
++	int ret;
++
++	ret = snd_pcm_create_iec958_consumer_default(cs, len);
++	if (ret < 0)
++		return ret;
++
++	return fill_iec958_consumer(params_rate(params), params_width(params), cs, len);
+ }
+ EXPORT_SYMBOL(snd_pcm_create_iec958_consumer_hw_params);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0634-ASoC-hdmi-codec-Add-iec958-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0634-ASoC-hdmi-codec-Add-iec958-controls.patch
new file mode 100644
index 0000000000..369c66dce1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0634-ASoC-hdmi-codec-Add-iec958-controls.patch
@@ -0,0 +1,113 @@
+From 011a6244136c86e03c77866d6ef9b8eac65fc575 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 28 Apr 2021 15:29:51 +0200
+Subject: [PATCH] ASoC: hdmi-codec: Add iec958 controls
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ sound/soc/codecs/hdmi-codec.c | 66 +++++++++++++++++++++++++++++++++--
+ 1 file changed, 64 insertions(+), 2 deletions(-)
+
+--- a/sound/soc/codecs/hdmi-codec.c
++++ b/sound/soc/codecs/hdmi-codec.c
+@@ -278,6 +278,7 @@ struct hdmi_codec_priv {
+ 	bool busy;
+ 	struct snd_soc_jack *jack;
+ 	unsigned int jack_status;
++	u8 iec_status[5];
+ };
+ 
+ static const struct snd_soc_dapm_widget hdmi_widgets[] = {
+@@ -385,6 +386,47 @@ static int hdmi_codec_chmap_ctl_get(stru
+ 	return 0;
+ }
+ 
++static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol,
++				  struct snd_ctl_elem_info *uinfo)
++{
++	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
++	uinfo->count = 1;
++	return 0;
++}
++
++static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol,
++					 struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
++	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
++
++	memcpy(ucontrol->value.iec958.status, hcp->iec_status,
++	       sizeof(hcp->iec_status));
++
++	return 0;
++}
++
++static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol,
++					 struct snd_ctl_elem_value *ucontrol)
++{
++	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
++	struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
++
++	memcpy(hcp->iec_status, ucontrol->value.iec958.status,
++	       sizeof(hcp->iec_status));
++
++	return 0;
++}
++
++static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol,
++				      struct snd_ctl_elem_value *ucontrol)
++{
++	memset(ucontrol->value.iec958.status, 0xff,
++	       sizeof_field(struct hdmi_codec_priv, iec_status));
++
++	return 0;
++}
++
+ static int hdmi_codec_startup(struct snd_pcm_substream *substream,
+ 			      struct snd_soc_dai *dai)
+ {
+@@ -458,8 +500,9 @@ static int hdmi_codec_hw_params(struct s
+ 		params_width(params), params_rate(params),
+ 		params_channels(params));
+ 
+-	ret = snd_pcm_create_iec958_consumer_hw_params(params, hp.iec.status,
+-						       sizeof(hp.iec.status));
++	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp->iec_status));
++	ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status,
++						     sizeof(hp.iec.status));
+ 	if (ret < 0) {
+ 		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",
+ 			ret);
+@@ -621,6 +664,20 @@ static const struct snd_soc_dai_ops hdmi
+ 
+ struct snd_kcontrol_new hdmi_codec_controls[] = {
+ 	{
++		.access = SNDRV_CTL_ELEM_ACCESS_READ,
++		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
++		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
++		.info = hdmi_codec_iec958_info,
++		.get = hdmi_codec_iec958_mask_get,
++	},
++	{
++		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
++		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
++		.info = hdmi_codec_iec958_info,
++		.get = hdmi_codec_iec958_default_get,
++		.put = hdmi_codec_iec958_default_put,
++	},
++	{
+ 		.access	= (SNDRV_CTL_ELEM_ACCESS_READ |
+ 			   SNDRV_CTL_ELEM_ACCESS_VOLATILE),
+ 		.iface	= SNDRV_CTL_ELEM_IFACE_PCM,
+@@ -845,6 +902,11 @@ static int hdmi_codec_probe(struct platf
+ 	hcp->hcd = *hcd;
+ 	mutex_init(&hcp->lock);
+ 
++	ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status,
++						     sizeof(hcp->iec_status));
++	if (ret < 0)
++		return ret;
++
+ 	daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL);
+ 	if (!daidrv)
+ 		return -ENOMEM;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0635-ASoC-hdmi-codec-Add-a-prepare-hook.patch b/target/linux/bcm27xx/patches-5.10/950-0635-ASoC-hdmi-codec-Add-a-prepare-hook.patch
new file mode 100644
index 0000000000..1f71d06eb9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0635-ASoC-hdmi-codec-Add-a-prepare-hook.patch
@@ -0,0 +1,202 @@
+From 067cda9dd7d018b033877df4996383b3529fdbad Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 30 Apr 2021 14:22:06 +0200
+Subject: [PATCH] ASoC: hdmi-codec: Add a prepare hook
+
+The IEC958 status bit is usually set by the userspace after hw_params
+has been called, so in order to use whatever is set by the userspace, we
+need to implement the prepare hook. Let's add it to the hdmi_codec_ops,
+and mandate that either prepare or hw_params is implemented.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ include/sound/hdmi-codec.h    |  12 +++-
+ sound/soc/codecs/hdmi-codec.c | 112 ++++++++++++++++++++++++++--------
+ 2 files changed, 99 insertions(+), 25 deletions(-)
+
+--- a/include/sound/hdmi-codec.h
++++ b/include/sound/hdmi-codec.h
+@@ -65,13 +65,23 @@ struct hdmi_codec_ops {
+ 
+ 	/*
+ 	 * Configures HDMI-encoder for audio stream.
+-	 * Mandatory
++	 * Having either prepare or hw_params is mandatory.
+ 	 */
+ 	int (*hw_params)(struct device *dev, void *data,
+ 			 struct hdmi_codec_daifmt *fmt,
+ 			 struct hdmi_codec_params *hparms);
+ 
+ 	/*
++	 * Configures HDMI-encoder for audio stream. Can be called
++	 * multiple times for each setup.
++	 *
++	 * Having either prepare or hw_params is mandatory.
++	 */
++	int (*prepare)(struct device *dev, void *data,
++		       struct hdmi_codec_daifmt *fmt,
++		       struct hdmi_codec_params *hparms);
++
++	/*
+ 	 * Shuts down the audio stream.
+ 	 * Mandatory
+ 	 */
+--- a/sound/soc/codecs/hdmi-codec.c
++++ b/sound/soc/codecs/hdmi-codec.c
+@@ -480,6 +480,42 @@ static void hdmi_codec_shutdown(struct s
+ 	mutex_unlock(&hcp->lock);
+ }
+ 
++static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai,
++					unsigned int sample_width,
++					unsigned int sample_rate,
++					unsigned int channels,
++					struct hdmi_codec_params *hp)
++{
++	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
++	int idx;
++
++	/* Select a channel allocation that matches with ELD and pcm channels */
++	idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels);
++	if (idx < 0) {
++		dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",
++			idx);
++		hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
++		return idx;
++	}
++
++	memset(hp, 0, sizeof(*hp));
++
++	hdmi_audio_infoframe_init(&hp->cea);
++	hp->cea.channels = channels;
++	hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
++	hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
++	hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
++	hp->cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id;
++
++	hp->sample_width = sample_width;
++	hp->sample_rate = sample_rate;
++	hp->channels = channels;
++
++	hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id;
++
++	return 0;
++}
++
+ static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
+ 				struct snd_pcm_hw_params *params,
+ 				struct snd_soc_dai *dai)
+@@ -494,13 +530,24 @@ static int hdmi_codec_hw_params(struct s
+ 			.dig_subframe = { 0 },
+ 		}
+ 	};
+-	int ret, idx;
++	int ret;
++
++	if (!hcp->hcd.ops->hw_params)
++		return 0;
+ 
+ 	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
+ 		params_width(params), params_rate(params),
+ 		params_channels(params));
+ 
+-	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp->iec_status));
++	ret = hdmi_codec_fill_codec_params(dai,
++					   params_width(params),
++					   params_rate(params),
++					   params_channels(params),
++					   &hp);
++	if (ret < 0)
++		return ret;
++
++	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));
+ 	ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status,
+ 						     sizeof(hp.iec.status));
+ 	if (ret < 0) {
+@@ -509,32 +556,47 @@ static int hdmi_codec_hw_params(struct s
+ 		return ret;
+ 	}
+ 
+-	hdmi_audio_infoframe_init(&hp.cea);
+-	hp.cea.channels = params_channels(params);
+-	hp.cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
+-	hp.cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
+-	hp.cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
+-
+-	/* Select a channel allocation that matches with ELD and pcm channels */
+-	idx = hdmi_codec_get_ch_alloc_table_idx(hcp, hp.cea.channels);
+-	if (idx < 0) {
+-		dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",
+-			idx);
+-		hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
+-		return idx;
+-	}
+-	hp.cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id;
+-	hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id;
+-
+-	hp.sample_width = params_width(params);
+-	hp.sample_rate = params_rate(params);
+-	hp.channels = params_channels(params);
+-
+ 	cf->bit_fmt = params_format(params);
+ 	return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,
+ 				       cf, &hp);
+ }
+ 
++static int hdmi_codec_prepare(struct snd_pcm_substream *substream,
++			      struct snd_soc_dai *dai)
++{
++	struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
++	struct hdmi_codec_daifmt *cf = dai->playback_dma_data;
++	struct snd_pcm_runtime *runtime = substream->runtime;
++	unsigned int channels = runtime->channels;
++	unsigned int width = snd_pcm_format_width(runtime->format);
++	unsigned int rate = runtime->rate;
++	struct hdmi_codec_params hp;
++	int ret;
++
++	if (!hcp->hcd.ops->prepare)
++		return 0;
++
++	dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
++		width, rate, channels);
++
++	ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp);
++	if (ret < 0)
++		return ret;
++
++	memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status));
++	ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status,
++					   sizeof(hp.iec.status));
++	if (ret < 0) {
++		dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",
++			ret);
++		return ret;
++	}
++
++	cf->bit_fmt = runtime->format;
++	return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data,
++				     cf, &hp);
++}
++
+ static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai,
+ 				  unsigned int fmt)
+ {
+@@ -626,6 +688,7 @@ static const struct snd_soc_dai_ops hdmi
+ 	.startup	= hdmi_codec_startup,
+ 	.shutdown	= hdmi_codec_shutdown,
+ 	.hw_params	= hdmi_codec_hw_params,
++	.prepare	= hdmi_codec_prepare,
+ 	.set_fmt	= hdmi_codec_i2s_set_fmt,
+ 	.mute_stream	= hdmi_codec_mute,
+ };
+@@ -889,7 +952,8 @@ static int hdmi_codec_probe(struct platf
+ 	}
+ 
+ 	dai_count = hcd->i2s + hcd->spdif;
+-	if (dai_count < 1 || !hcd->ops || !hcd->ops->hw_params ||
++	if (dai_count < 1 || !hcd->ops ||
++	    (!hcd->ops->hw_params && !hcd->ops->prepare) ||
+ 	    !hcd->ops->audio_shutdown) {
+ 		dev_err(dev, "%s: Invalid parameters\n", __func__);
+ 		return -EINVAL;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0636-drm-vc4-Register-HDMI-codec.patch b/target/linux/bcm27xx/patches-5.10/950-0636-drm-vc4-Register-HDMI-codec.patch
new file mode 100644
index 0000000000..9a294b3f31
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0636-drm-vc4-Register-HDMI-codec.patch
@@ -0,0 +1,492 @@
+From 1e6a19ca5f275155a4dd1961d351306b589b11a0 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 26 Apr 2021 14:42:26 +0200
+Subject: [PATCH] drm/vc4: Register HDMI codec
+
+The hdmi-codec brings a lot of advanced features, including the HDMI
+channel mapping. Let's use it in our driver instead of our own codec.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/Kconfig    |   1 +
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 311 +++++++++------------------------
+ drivers/gpu/drm/vc4/vc4_hdmi.h |   3 +-
+ 3 files changed, 84 insertions(+), 231 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/Kconfig
++++ b/drivers/gpu/drm/vc4/Kconfig
+@@ -12,6 +12,7 @@ config DRM_VC4
+ 	select SND_PCM
+ 	select SND_PCM_ELD
+ 	select SND_SOC_GENERIC_DMAENGINE_PCM
++	select SND_SOC_HDMI_CODEC
+ 	select DRM_MIPI_DSI
+ 	help
+ 	  Choose this option if you have a system that has a Broadcom
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -47,6 +47,7 @@
+ #include <linux/reset.h>
+ #include <sound/asoundef.h>
+ #include <sound/dmaengine_pcm.h>
++#include <sound/hdmi-codec.h>
+ #include <sound/pcm_drm_eld.h>
+ #include <sound/pcm_params.h>
+ #include <sound/soc.h>
+@@ -95,6 +96,12 @@
+ # define VC4_HD_M_ENABLE			BIT(0)
+ 
+ #define CEC_CLOCK_FREQ 40000
++#define HDMI_14_MAX_TMDS_CLK   (340 * 1000 * 1000)
++
++static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode)
++{
++	return (mode->clock * 1000) > HDMI_14_MAX_TMDS_CLK;
++}
+ 
+ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
+ {
+@@ -472,16 +479,10 @@ static void vc4_hdmi_set_spd_infoframe(s
+ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
++	struct hdmi_audio_infoframe *audio = &vc4_hdmi->audio.infoframe;
+ 	union hdmi_infoframe frame;
+-	int ret;
+-
+-	ret = hdmi_audio_infoframe_init(&frame.audio);
+-
+-	frame.audio.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
+-	frame.audio.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
+-	frame.audio.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
+-	frame.audio.channels = vc4_hdmi->audio.channels;
+ 
++	memcpy(&frame.audio, audio, sizeof(*audio));
+ 	vc4_hdmi_write_infoframe(encoder, &frame);
+ }
+ 
+@@ -1214,18 +1215,10 @@ static inline struct vc4_hdmi *dai_to_hd
+ 	return snd_soc_card_get_drvdata(card);
+ }
+ 
+-static int vc4_hdmi_audio_startup(struct snd_pcm_substream *substream,
+-				  struct snd_soc_dai *dai)
++static int vc4_hdmi_audio_startup(struct device *dev, void *data)
+ {
+-	struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);
++	struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
+ 	struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
+-	struct drm_connector *connector = &vc4_hdmi->connector;
+-	int ret;
+-
+-	if (vc4_hdmi->audio.substream && vc4_hdmi->audio.substream != substream)
+-		return -EINVAL;
+-
+-	vc4_hdmi->audio.substream = substream;
+ 
+ 	/*
+ 	 * If the HDMI encoder hasn't probed, or the encoder is
+@@ -1235,15 +1228,18 @@ static int vc4_hdmi_audio_startup(struct
+ 				VC4_HDMI_RAM_PACKET_ENABLE))
+ 		return -ENODEV;
+ 
+-	ret = snd_pcm_hw_constraint_eld(substream->runtime, connector->eld);
+-	if (ret)
+-		return ret;
++	vc4_hdmi->audio.streaming = true;
+ 
+-	return 0;
+-}
++	HDMI_WRITE(HDMI_MAI_CTL,
++		   VC4_HD_MAI_CTL_RESET |
++		   VC4_HD_MAI_CTL_FLUSH |
++		   VC4_HD_MAI_CTL_DLATE |
++		   VC4_HD_MAI_CTL_ERRORE |
++		   VC4_HD_MAI_CTL_ERRORF);
++
++	if (vc4_hdmi->variant->phy_rng_enable)
++		vc4_hdmi->variant->phy_rng_enable(vc4_hdmi);
+ 
+-static int vc4_hdmi_audio_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+-{
+ 	return 0;
+ }
+ 
+@@ -1263,17 +1259,20 @@ static void vc4_hdmi_audio_reset(struct
+ 	HDMI_WRITE(HDMI_MAI_CTL, VC4_HD_MAI_CTL_FLUSH);
+ }
+ 
+-static void vc4_hdmi_audio_shutdown(struct snd_pcm_substream *substream,
+-				    struct snd_soc_dai *dai)
++static void vc4_hdmi_audio_shutdown(struct device *dev, void *data)
+ {
+-	struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);
++	struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
+ 
+-	if (substream != vc4_hdmi->audio.substream)
+-		return;
++	HDMI_WRITE(HDMI_MAI_CTL,
++		   VC4_HD_MAI_CTL_DLATE |
++		   VC4_HD_MAI_CTL_ERRORE |
++		   VC4_HD_MAI_CTL_ERRORF);
+ 
+-	vc4_hdmi_audio_reset(vc4_hdmi);
++	if (vc4_hdmi->variant->phy_rng_disable)
++		vc4_hdmi->variant->phy_rng_disable(vc4_hdmi);
+ 
+-	vc4_hdmi->audio.substream = NULL;
++	vc4_hdmi->audio.streaming = false;
++	vc4_hdmi_audio_reset(vc4_hdmi);
+ }
+ 
+ static int sample_rate_to_mai_fmt(int samplerate)
+@@ -1315,42 +1314,35 @@ static int sample_rate_to_mai_fmt(int sa
+ }
+ 
+ /* HDMI audio codec callbacks */
+-static int vc4_hdmi_audio_prepare(struct snd_pcm_substream *substream,
+-				  struct snd_soc_dai *dai)
++static int vc4_hdmi_audio_prepare(struct device *dev, void *data,
++				  struct hdmi_codec_daifmt *daifmt,
++				  struct hdmi_codec_params *params)
+ {
+-	struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);
++	struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
+ 	struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
+-	struct device *dev = &vc4_hdmi->pdev->dev;
+ 	u32 audio_packet_config, channel_mask;
+ 	u32 channel_map;
+ 	u32 mai_audio_format;
+ 	u32 mai_sample_rate;
+ 
+-	if (substream != vc4_hdmi->audio.substream)
+-		return -EINVAL;
++	dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
++		params->sample_rate, params->sample_width,
++		params->channels);
+ 
+-	dev_dbg(dev, "%s: %u Hz, %d bit, %d channels AES0=%02x\n",
+-		__func__,
+-		substream->runtime->rate,
+-		snd_pcm_format_width(substream->runtime->format),
+-		substream->runtime->channels,
+-		vc4_hdmi->audio.iec_status[0]);
+-
+-	vc4_hdmi->audio.channels = substream->runtime->channels;
+-	vc4_hdmi->audio.samplerate = substream->runtime->rate;
++	vc4_hdmi->audio.channels = params->channels;
++	vc4_hdmi->audio.samplerate = params->sample_rate;
+ 
+ 	HDMI_WRITE(HDMI_MAI_CTL,
+-		   VC4_HD_MAI_CTL_RESET |
+-		   VC4_HD_MAI_CTL_FLUSH |
+-		   VC4_HD_MAI_CTL_DLATE |
+-		   VC4_HD_MAI_CTL_ERRORE |
+-		   VC4_HD_MAI_CTL_ERRORF);
++		   VC4_SET_FIELD(params->channels, VC4_HD_MAI_CTL_CHNUM) |
++		   VC4_HD_MAI_CTL_WHOLSMP |
++		   VC4_HD_MAI_CTL_CHALIGN |
++		   VC4_HD_MAI_CTL_ENABLE);
+ 
+ 	vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
+ 
+ 	mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
+-	if (vc4_hdmi->audio.iec_status[0] & IEC958_AES0_NONAUDIO &&
+-	    vc4_hdmi->audio.channels == 8)
++	if (params->iec.status[0] & IEC958_AES0_NONAUDIO &&
++	    params->channels == 8)
+ 		mai_audio_format = VC4_HDMI_MAI_FORMAT_HBR;
+ 	else
+ 		mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
+@@ -1387,148 +1379,12 @@ static int vc4_hdmi_audio_prepare(struct
+ 	HDMI_WRITE(HDMI_AUDIO_PACKET_CONFIG, audio_packet_config);
+ 	vc4_hdmi_set_n_cts(vc4_hdmi);
+ 
++	memcpy(&vc4_hdmi->audio.infoframe, &params->cea, sizeof(params->cea));
+ 	vc4_hdmi_set_audio_infoframe(encoder);
+ 
+ 	return 0;
+ }
+ 
+-static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
+-				  struct snd_soc_dai *dai)
+-{
+-	struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai);
+-
+-	switch (cmd) {
+-	case SNDRV_PCM_TRIGGER_START:
+-		vc4_hdmi->audio.streaming = true;
+-
+-		if (vc4_hdmi->variant->phy_rng_enable)
+-			vc4_hdmi->variant->phy_rng_enable(vc4_hdmi);
+-
+-		HDMI_WRITE(HDMI_MAI_CTL,
+-			   VC4_SET_FIELD(vc4_hdmi->audio.channels,
+-					 VC4_HD_MAI_CTL_CHNUM) |
+-					 VC4_HD_MAI_CTL_WHOLSMP |
+-					 VC4_HD_MAI_CTL_CHALIGN |
+-					 VC4_HD_MAI_CTL_ENABLE);
+-		break;
+-	case SNDRV_PCM_TRIGGER_STOP:
+-		HDMI_WRITE(HDMI_MAI_CTL,
+-			   VC4_HD_MAI_CTL_DLATE |
+-			   VC4_HD_MAI_CTL_ERRORE |
+-			   VC4_HD_MAI_CTL_ERRORF);
+-
+-		if (vc4_hdmi->variant->phy_rng_disable)
+-			vc4_hdmi->variant->phy_rng_disable(vc4_hdmi);
+-
+-		vc4_hdmi->audio.streaming = false;
+-
+-		break;
+-	default:
+-		break;
+-	}
+-
+-	return 0;
+-}
+-
+-static inline struct vc4_hdmi *
+-snd_component_to_hdmi(struct snd_soc_component *component)
+-{
+-	struct snd_soc_card *card = snd_soc_component_get_drvdata(component);
+-
+-	return snd_soc_card_get_drvdata(card);
+-}
+-
+-static int vc4_hdmi_audio_eld_ctl_info(struct snd_kcontrol *kcontrol,
+-				       struct snd_ctl_elem_info *uinfo)
+-{
+-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+-	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
+-	struct drm_connector *connector = &vc4_hdmi->connector;
+-
+-	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+-	uinfo->count = sizeof(connector->eld);
+-
+-	return 0;
+-}
+-
+-static int vc4_hdmi_audio_eld_ctl_get(struct snd_kcontrol *kcontrol,
+-				      struct snd_ctl_elem_value *ucontrol)
+-{
+-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+-	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
+-	struct drm_connector *connector = &vc4_hdmi->connector;
+-
+-	memcpy(ucontrol->value.bytes.data, connector->eld,
+-	       sizeof(connector->eld));
+-
+-	return 0;
+-}
+-
+-static int vc4_spdif_info(struct snd_kcontrol *kcontrol,
+-			  struct snd_ctl_elem_info *uinfo)
+-{
+-	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+-	uinfo->count = 1;
+-	return 0;
+-}
+-
+-static int vc4_spdif_playback_get(struct snd_kcontrol *kcontrol,
+-				  struct snd_ctl_elem_value *ucontrol)
+-{
+-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+-	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
+-
+-	memcpy(ucontrol->value.iec958.status, vc4_hdmi->audio.iec_status,
+-	       sizeof(vc4_hdmi->audio.iec_status));
+-
+-	return 0;
+-}
+-
+-static int vc4_spdif_playback_put(struct snd_kcontrol *kcontrol,
+-				  struct snd_ctl_elem_value *ucontrol)
+-{
+-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+-	struct vc4_hdmi *vc4_hdmi = snd_component_to_hdmi(component);
+-
+-	memcpy(vc4_hdmi->audio.iec_status, ucontrol->value.iec958.status,
+-	       sizeof(vc4_hdmi->audio.iec_status));
+-
+-	return 0;
+-}
+-
+-static int vc4_spdif_mask_get(struct snd_kcontrol *kcontrol,
+-			      struct snd_ctl_elem_value *ucontrol)
+-{
+-	memset(ucontrol->value.iec958.status, 0xff,
+-	       sizeof_field(struct vc4_hdmi_audio, iec_status));
+-
+-	return 0;
+-}
+-
+-static const struct snd_kcontrol_new vc4_hdmi_audio_controls[] = {
+-	{
+-		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+-			  SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+-		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+-		.name = "ELD",
+-		.info = vc4_hdmi_audio_eld_ctl_info,
+-		.get = vc4_hdmi_audio_eld_ctl_get,
+-	},
+-	{
+-		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+-		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+-		.info =    vc4_spdif_info,
+-		.get =     vc4_spdif_playback_get,
+-		.put =     vc4_spdif_playback_put,
+-	},
+-	{
+-		.iface =   SNDRV_CTL_ELEM_IFACE_MIXER,
+-		.name =    SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+-		.info =    vc4_spdif_info,
+-		.get =     vc4_spdif_mask_get,
+-	},
+-};
+-
+ static const struct snd_soc_dapm_widget vc4_hdmi_audio_widgets[] = {
+ 	SND_SOC_DAPM_OUTPUT("TX"),
+ };
+@@ -1539,8 +1395,6 @@ static const struct snd_soc_dapm_route v
+ 
+ static const struct snd_soc_component_driver vc4_hdmi_audio_component_drv = {
+ 	.name			= "vc4-hdmi-codec-dai-component",
+-	.controls		= vc4_hdmi_audio_controls,
+-	.num_controls		= ARRAY_SIZE(vc4_hdmi_audio_controls),
+ 	.dapm_widgets		= vc4_hdmi_audio_widgets,
+ 	.num_dapm_widgets	= ARRAY_SIZE(vc4_hdmi_audio_widgets),
+ 	.dapm_routes		= vc4_hdmi_audio_routes,
+@@ -1551,28 +1405,6 @@ static const struct snd_soc_component_dr
+ 	.non_legacy_dai_naming	= 1,
+ };
+ 
+-static const struct snd_soc_dai_ops vc4_hdmi_audio_dai_ops = {
+-	.startup = vc4_hdmi_audio_startup,
+-	.shutdown = vc4_hdmi_audio_shutdown,
+-	.prepare = vc4_hdmi_audio_prepare,
+-	.set_fmt = vc4_hdmi_audio_set_fmt,
+-	.trigger = vc4_hdmi_audio_trigger,
+-};
+-
+-static struct snd_soc_dai_driver vc4_hdmi_audio_codec_dai_drv = {
+-	.name = "vc4-hdmi-hifi",
+-	.playback = {
+-		.stream_name = "Playback",
+-		.channels_min = 2,
+-		.channels_max = 8,
+-		.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+-			 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+-			 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+-			 SNDRV_PCM_RATE_192000,
+-		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
+-	},
+-};
+-
+ static const struct snd_soc_component_driver vc4_hdmi_audio_cpu_dai_comp = {
+ 	.name = "vc4-hdmi-cpu-dai-component",
+ };
+@@ -1599,7 +1431,6 @@ static struct snd_soc_dai_driver vc4_hdm
+ 			 SNDRV_PCM_RATE_192000,
+ 		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
+ 	},
+-	.ops = &vc4_hdmi_audio_dai_ops,
+ };
+ 
+ static const struct snd_dmaengine_pcm_config pcm_conf = {
+@@ -1607,6 +1438,31 @@ static const struct snd_dmaengine_pcm_co
+ 	.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
+ };
+ 
++
++static int vc4_hdmi_audio_get_eld(struct device *dev, void *data,
++				  uint8_t *buf, size_t len)
++{
++	struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
++	struct drm_connector *connector = &vc4_hdmi->connector;
++
++	memcpy(buf, connector->eld, min(sizeof(connector->eld), len));
++
++	return 0;
++}
++
++static const struct hdmi_codec_ops vc4_hdmi_codec_ops = {
++	.get_eld = vc4_hdmi_audio_get_eld,
++	.prepare = vc4_hdmi_audio_prepare,
++	.audio_shutdown = vc4_hdmi_audio_shutdown,
++	.audio_startup = vc4_hdmi_audio_startup,
++};
++
++struct hdmi_codec_pdata vc4_hdmi_codec_pdata = {
++	.ops = &vc4_hdmi_codec_ops,
++	.max_i2s_channels = 8,
++	.i2s = 1,
++};
++
+ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi)
+ {
+ 	const struct vc4_hdmi_register *mai_data =
+@@ -1614,6 +1470,7 @@ static int vc4_hdmi_audio_init(struct vc
+ 	struct snd_soc_dai_link *dai_link = &vc4_hdmi->audio.link;
+ 	struct snd_soc_card *card = &vc4_hdmi->audio.card;
+ 	struct device *dev = &vc4_hdmi->pdev->dev;
++	struct platform_device *codec_pdev;
+ 	const __be32 *addr;
+ 	int index;
+ 	int ret;
+@@ -1649,11 +1506,6 @@ static int vc4_hdmi_audio_init(struct vc
+ 	vc4_hdmi->audio.dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ 	vc4_hdmi->audio.dma_data.maxburst = 2;
+ 
+-	vc4_hdmi->audio.iec_status[0] = IEC958_AES0_CON_NOT_COPYRIGHT;
+-	vc4_hdmi->audio.iec_status[1] =
+-		IEC958_AES1_CON_ORIGINAL | IEC958_AES1_CON_PCM_CODER;
+-	vc4_hdmi->audio.iec_status[3] = IEC958_AES3_CON_FS_48000;
+-
+ 	ret = devm_snd_dmaengine_pcm_register(dev, &pcm_conf, 0);
+ 	if (ret) {
+ 		dev_err(dev, "Could not register PCM component: %d\n", ret);
+@@ -1667,12 +1519,13 @@ static int vc4_hdmi_audio_init(struct vc
+ 		return ret;
+ 	}
+ 
+-	/* register component and codec dai */
+-	ret = devm_snd_soc_register_component(dev, &vc4_hdmi_audio_component_drv,
+-				     &vc4_hdmi_audio_codec_dai_drv, 1);
+-	if (ret) {
+-		dev_err(dev, "Could not register component: %d\n", ret);
+-		return ret;
++	codec_pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
++						   PLATFORM_DEVID_AUTO,
++						   &vc4_hdmi_codec_pdata,
++						   sizeof(vc4_hdmi_codec_pdata));
++	if (IS_ERR(codec_pdev)) {
++		dev_err(dev, "Couldn't register the HDMI codec: %ld\n", PTR_ERR(codec_pdev));
++		return PTR_ERR(codec_pdev);
+ 	}
+ 
+ 	dai_link->cpus		= &vc4_hdmi->audio.cpu;
+@@ -1685,9 +1538,9 @@ static int vc4_hdmi_audio_init(struct vc
+ 
+ 	dai_link->name = "MAI";
+ 	dai_link->stream_name = "MAI PCM";
+-	dai_link->codecs->dai_name = vc4_hdmi_audio_codec_dai_drv.name;
++	dai_link->codecs->dai_name = "i2s-hifi";
+ 	dai_link->cpus->dai_name = dev_name(dev);
+-	dai_link->codecs->name = dev_name(dev);
++	dai_link->codecs->name = dev_name(&codec_pdev->dev);
+ 	dai_link->platforms->name = dev_name(dev);
+ 
+ 	card->dai_link = dai_link;
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -114,8 +114,7 @@ struct vc4_hdmi_audio {
+ 	int samplerate;
+ 	int channels;
+ 	struct snd_dmaengine_dai_dma_data dma_data;
+-	struct snd_pcm_substream *substream;
+-
++	struct hdmi_audio_infoframe infoframe;
+ 	bool streaming;
+ 
+ 	unsigned char iec_status[4];
diff --git a/target/linux/bcm27xx/patches-5.10/950-0637-drm-vc4-hdmi-Remove-redundant-variables.patch b/target/linux/bcm27xx/patches-5.10/950-0637-drm-vc4-hdmi-Remove-redundant-variables.patch
new file mode 100644
index 0000000000..c147ed2708
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0637-drm-vc4-hdmi-Remove-redundant-variables.patch
@@ -0,0 +1,111 @@
+From 644a25e926abb918dfff7b3122896848ca35d2a1 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 27 Apr 2021 16:26:39 +0200
+Subject: [PATCH] drm/vc4: hdmi: Remove redundant variables
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 26 ++++++++++++--------------
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  4 ----
+ 2 files changed, 12 insertions(+), 18 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1164,12 +1164,13 @@ static u32 vc5_hdmi_channel_map(struct v
+ }
+ 
+ /* HDMI audio codec callbacks */
+-static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *vc4_hdmi)
++static void vc4_hdmi_audio_set_mai_clock(struct vc4_hdmi *vc4_hdmi,
++					 unsigned int samplerate)
+ {
+ 	u32 hsm_clock = clk_get_rate(vc4_hdmi->audio_clock);
+ 	unsigned long n, m;
+ 
+-	rational_best_approximation(hsm_clock, vc4_hdmi->audio.samplerate,
++	rational_best_approximation(hsm_clock, samplerate,
+ 				    VC4_HD_MAI_SMP_N_MASK >>
+ 				    VC4_HD_MAI_SMP_N_SHIFT,
+ 				    (VC4_HD_MAI_SMP_M_MASK >>
+@@ -1181,12 +1182,11 @@ static void vc4_hdmi_audio_set_mai_clock
+ 		   VC4_SET_FIELD(m - 1, VC4_HD_MAI_SMP_M));
+ }
+ 
+-static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi)
++static void vc4_hdmi_set_n_cts(struct vc4_hdmi *vc4_hdmi, unsigned int samplerate)
+ {
+ 	struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
+ 	struct drm_crtc *crtc = encoder->crtc;
+ 	const struct drm_display_mode *mode = &crtc->state->adjusted_mode;
+-	u32 samplerate = vc4_hdmi->audio.samplerate;
+ 	u32 n, cts;
+ 	u64 tmp;
+ 
+@@ -1320,27 +1320,25 @@ static int vc4_hdmi_audio_prepare(struct
+ {
+ 	struct vc4_hdmi *vc4_hdmi = dev_get_drvdata(dev);
+ 	struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base;
++	unsigned int sample_rate = params->sample_rate;
++	unsigned int channels = params->channels;
+ 	u32 audio_packet_config, channel_mask;
+ 	u32 channel_map;
+ 	u32 mai_audio_format;
+ 	u32 mai_sample_rate;
+ 
+ 	dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
+-		params->sample_rate, params->sample_width,
+-		params->channels);
+-
+-	vc4_hdmi->audio.channels = params->channels;
+-	vc4_hdmi->audio.samplerate = params->sample_rate;
++		sample_rate, params->sample_width, channels);
+ 
+ 	HDMI_WRITE(HDMI_MAI_CTL,
+-		   VC4_SET_FIELD(params->channels, VC4_HD_MAI_CTL_CHNUM) |
++		   VC4_SET_FIELD(channels, VC4_HD_MAI_CTL_CHNUM) |
+ 		   VC4_HD_MAI_CTL_WHOLSMP |
+ 		   VC4_HD_MAI_CTL_CHALIGN |
+ 		   VC4_HD_MAI_CTL_ENABLE);
+ 
+-	vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
++	vc4_hdmi_audio_set_mai_clock(vc4_hdmi, sample_rate);
+ 
+-	mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
++	mai_sample_rate = sample_rate_to_mai_fmt(sample_rate);
+ 	if (params->iec.status[0] & IEC958_AES0_NONAUDIO &&
+ 	    params->channels == 8)
+ 		mai_audio_format = VC4_HDMI_MAI_FORMAT_HBR;
+@@ -1358,7 +1356,7 @@ static int vc4_hdmi_audio_prepare(struct
+ 		VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_INACTIVE_CHANNELS |
+ 		VC4_SET_FIELD(0x8, VC4_HDMI_AUDIO_PACKET_B_FRAME_IDENTIFIER);
+ 
+-	channel_mask = GENMASK(vc4_hdmi->audio.channels - 1, 0);
++	channel_mask = GENMASK(channels - 1, 0);
+ 	audio_packet_config |= VC4_SET_FIELD(channel_mask,
+ 					     VC4_HDMI_AUDIO_PACKET_CEA_MASK);
+ 
+@@ -1377,7 +1375,7 @@ static int vc4_hdmi_audio_prepare(struct
+ 	channel_map = vc4_hdmi->variant->channel_map(vc4_hdmi, channel_mask);
+ 	HDMI_WRITE(HDMI_MAI_CHANNEL_MAP, channel_map);
+ 	HDMI_WRITE(HDMI_AUDIO_PACKET_CONFIG, audio_packet_config);
+-	vc4_hdmi_set_n_cts(vc4_hdmi);
++	vc4_hdmi_set_n_cts(vc4_hdmi, sample_rate);
+ 
+ 	memcpy(&vc4_hdmi->audio.infoframe, &params->cea, sizeof(params->cea));
+ 	vc4_hdmi_set_audio_infoframe(encoder);
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -111,13 +111,9 @@ struct vc4_hdmi_audio {
+ 	struct snd_soc_dai_link_component cpu;
+ 	struct snd_soc_dai_link_component codec;
+ 	struct snd_soc_dai_link_component platform;
+-	int samplerate;
+-	int channels;
+ 	struct snd_dmaengine_dai_dma_data dma_data;
+ 	struct hdmi_audio_infoframe infoframe;
+ 	bool streaming;
+-
+-	unsigned char iec_status[4];
+ };
+ 
+ /* General HDMI hardware state. */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch b/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch
new file mode 100644
index 0000000000..c4a3492c82
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch
@@ -0,0 +1,35 @@
+From 54643c62b6a848bfcfd86ac4eebbea28c0f1902e Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Wed, 28 Apr 2021 16:10:02 +0200
+Subject: [PATCH] ARM: dts: bcm2711: Tune DMA parameters for HDMI audio
+
+Enable NO_WAIT_RESP, DMA_WIDE_SOURCE, DMA_WIDE_DEST, and bump the DMA
+panic and AXI priorities to avoid any DMA transfer error with HBR audio
+(8 channel, 192Hz).
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -359,7 +359,7 @@
+ 			interrupt-names = "cec-tx", "cec-rx", "cec-low",
+ 					  "wakeup", "hpd-connected", "hpd-removed";
+ 			ddc = <&ddc0>;
+-			dmas = <&dma 10>;
++			dmas = <&dma (10 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>;
+ 			dma-names = "audio-rx";
+ 			status = "disabled";
+ 		};
+@@ -406,7 +406,7 @@
+ 				     <9>, <10>, <11>;
+ 			interrupt-names = "cec-tx", "cec-rx", "cec-low",
+ 					  "wakeup", "hpd-connected", "hpd-removed";
+-			dmas = <&dma 17>;
++			dmas = <&dma (17 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>;
+ 			dma-names = "audio-rx";
+ 			status = "disabled";
+ 		};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0639-cgroup-Disable-cgroup-memory-by-default.patch b/target/linux/bcm27xx/patches-5.10/950-0639-cgroup-Disable-cgroup-memory-by-default.patch
new file mode 100644
index 0000000000..9eddc3eb0a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0639-cgroup-Disable-cgroup-memory-by-default.patch
@@ -0,0 +1,85 @@
+From 2b13c54592135b6fab269517ed687fa9f80bf8e5 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 27 Nov 2017 17:14:54 +0000
+Subject: [PATCH] cgroup: Disable cgroup "memory" by default
+
+Some Raspberry Pis have limited RAM and most users won't use the
+cgroup memory support so it is disabled by default. Enable with:
+
+    cgroup_enable=memory
+
+See: https://github.com/raspberrypi/linux/issues/1950
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ kernel/cgroup/cgroup.c | 38 ++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 38 insertions(+)
+
+--- a/kernel/cgroup/cgroup.c
++++ b/kernel/cgroup/cgroup.c
+@@ -5665,6 +5665,9 @@ int __init cgroup_init_early(void)
+ 	return 0;
+ }
+ 
++static u16 cgroup_enable_mask __initdata;
++static int __init cgroup_disable(char *str);
++
+ /**
+  * cgroup_init - cgroup initialization
+  *
+@@ -5703,6 +5706,12 @@ int __init cgroup_init(void)
+ 
+ 	mutex_unlock(&cgroup_mutex);
+ 
++	/*
++	 * Apply an implicit disable, knowing that an explicit enable will
++	 * prevent if from doing anything.
++	 */
++	cgroup_disable("memory");
++
+ 	for_each_subsys(ss, ssid) {
+ 		if (ss->early_init) {
+ 			struct cgroup_subsys_state *css =
+@@ -6240,6 +6249,10 @@ static int __init cgroup_disable(char *s
+ 			    strcmp(token, ss->legacy_name))
+ 				continue;
+ 
++			/* An explicit cgroup_enable overrides a disable */
++			if (cgroup_enable_mask & (1 << i))
++				continue;
++
+ 			static_branch_disable(cgroup_subsys_enabled_key[i]);
+ 			pr_info("Disabling %s control group subsystem\n",
+ 				ss->name);
+@@ -6249,6 +6262,31 @@ static int __init cgroup_disable(char *s
+ }
+ __setup("cgroup_disable=", cgroup_disable);
+ 
++static int __init cgroup_enable(char *str)
++{
++	struct cgroup_subsys *ss;
++	char *token;
++	int i;
++
++	while ((token = strsep(&str, ",")) != NULL) {
++		if (!*token)
++			continue;
++
++		for_each_subsys(ss, i) {
++			if (strcmp(token, ss->name) &&
++			    strcmp(token, ss->legacy_name))
++				continue;
++
++			cgroup_enable_mask |= 1 << i;
++			static_branch_enable(cgroup_subsys_enabled_key[i]);
++			pr_info("Enabling %s control group subsystem\n",
++				ss->name);
++		}
++	}
++	return 1;
++}
++__setup("cgroup_enable=", cgroup_enable);
++
+ void __init __weak enable_debug_cgroup(void) { }
+ 
+ static int __init enable_cgroup_debug(char *str)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0640-media-i2c-imx290-Support-60fps-in-2-lane-operation.patch b/target/linux/bcm27xx/patches-5.10/950-0640-media-i2c-imx290-Support-60fps-in-2-lane-operation.patch
new file mode 100644
index 0000000000..9c688d0d86
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0640-media-i2c-imx290-Support-60fps-in-2-lane-operation.patch
@@ -0,0 +1,309 @@
+From 5886d3655e1d876325ca348cf29fad3e92a45492 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 17 Jun 2021 12:05:25 +0100
+Subject: [PATCH] media: i2c: imx290: Support 60fps in 2 lane operation
+
+Commit "97589ad61c73 media: i2c: imx290: Add support for 2 data lanes"
+added support for running in two lane mode (instead of 4), but
+without changing the link frequency that resulted in a max of 30fps.
+
+Commit "98e0500eadb7 media: i2c: imx290: Add configurable link frequency
+and pixel rate" then doubled the link frequency when in 2 lane mode,
+but didn't undo the correction for running at only 30fps, just extending
+horizontal blanking instead.
+It also didn't update the CSI timing registers in accordance with the
+datasheet.
+
+Remove the 30fps limit on 2 lane by correcting the register config
+in accordance with the datasheet for 60fps operation over 2 lanes.
+Frame rate control (via V4L2_CID_VBLANK or HBLANK) can still reduce
+the frame rate on 2 lanes back to 30fps.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 163 ++++++++++++++++++++++---------------
+ 1 file changed, 97 insertions(+), 66 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -46,8 +46,7 @@ enum imx290_clk_index {
+ #define IMX290_VMAX_MAX 0x3fff
+ #define IMX290_HMAX_LOW 0x301c
+ #define IMX290_HMAX_HIGH 0x301d
+-#define IMX290_HMAX_MIN_2LANE 4400 /* Min of 4400 pixels = 30fps */
+-#define IMX290_HMAX_MIN_4LANE 2200 /* Min of 2200 pixels = 60fps */
++#define IMX290_HMAX_MIN 2200 /* Min of 2200 pixels = 60fps */
+ #define IMX290_HMAX_MAX 0xffff
+ 
+ #define IMX290_EXPOSURE_MIN 1
+@@ -89,8 +88,11 @@ struct imx290_mode {
+ 	u8 link_freq_index;
+ 	struct v4l2_rect crop;
+ 
+-	const struct imx290_regval *data;
+-	u32 data_size;
++	const struct imx290_regval *mode_data;
++	u32 mode_data_size;
++	const struct imx290_regval *lane_data;
++	u32 lane_data_size;
++
+ 
+ 	/* Clock setup can vary. Index as enum imx290_clk_index */
+ 	const struct imx290_regval *clk_data[2];
+@@ -242,8 +244,9 @@ static const struct imx290_regval imx290
+ 	{ 0x3480, 0x92 },
+ };
+ 
+-static const struct imx290_regval imx290_1080p_settings[] = {
++static const struct imx290_regval imx290_1080p_common_settings[] = {
+ 	/* mode settings */
++	{ IMX290_FR_FDG_SEL, 0x01 },
+ 	{ 0x3007, 0x00 },
+ 	{ 0x303a, 0x0c },
+ 	{ 0x3414, 0x0a },
+@@ -253,8 +256,36 @@ static const struct imx290_regval imx290
+ 	{ 0x3419, 0x04 },
+ 	{ 0x3012, 0x64 },
+ 	{ 0x3013, 0x00 },
++};
++
++static const struct imx290_regval imx290_1080p_2lane_settings[] = {
++	{ 0x3405, 0x00 },
+ 	/* data rate settings */
++	{ IMX290_PHY_LANE_NUM, 0x01 },
++	{ IMX290_CSI_LANE_MODE, 0x01 },
++	{ 0x3446, 0x77 },
++	{ 0x3447, 0x00 },
++	{ 0x3448, 0x67 },
++	{ 0x3449, 0x00 },
++	{ 0x344a, 0x47 },
++	{ 0x344b, 0x00 },
++	{ 0x344c, 0x37 },
++	{ 0x344d, 0x00 },
++	{ 0x344e, 0x3f },
++	{ 0x344f, 0x00 },
++	{ 0x3450, 0xff },
++	{ 0x3451, 0x00 },
++	{ 0x3452, 0x3f },
++	{ 0x3453, 0x00 },
++	{ 0x3454, 0x37 },
++	{ 0x3455, 0x00 },
++};
++
++static const struct imx290_regval imx290_1080p_4lane_settings[] = {
+ 	{ 0x3405, 0x10 },
++	/* data rate settings */
++	{ IMX290_PHY_LANE_NUM, 0x03 },
++	{ IMX290_CSI_LANE_MODE, 0x03 },
+ 	{ 0x3446, 0x57 },
+ 	{ 0x3447, 0x00 },
+ 	{ 0x3448, 0x37 },
+@@ -297,8 +328,9 @@ static const struct imx290_regval imx290
+ 	{ 0x3480, 0x92 },
+ };
+ 
+-static const struct imx290_regval imx290_720p_settings[] = {
++static const struct imx290_regval imx290_720p_common_settings[] = {
+ 	/* mode settings */
++	{ IMX290_FR_FDG_SEL, 0x01 },
+ 	{ 0x3007, 0x10 },
+ 	{ 0x303a, 0x06 },
+ 	{ 0x3414, 0x04 },
+@@ -308,8 +340,36 @@ static const struct imx290_regval imx290
+ 	{ 0x3419, 0x02 },
+ 	{ 0x3012, 0x64 },
+ 	{ 0x3013, 0x00 },
++};
++
++static const struct imx290_regval imx290_720p_2lane_settings[] = {
++	{ 0x3405, 0x00 },
++	{ IMX290_PHY_LANE_NUM, 0x01 },
++	{ IMX290_CSI_LANE_MODE, 0x01 },
+ 	/* data rate settings */
++	{ 0x3446, 0x67 },
++	{ 0x3447, 0x00 },
++	{ 0x3448, 0x57 },
++	{ 0x3449, 0x00 },
++	{ 0x344a, 0x2f },
++	{ 0x344b, 0x00 },
++	{ 0x344c, 0x27 },
++	{ 0x344d, 0x00 },
++	{ 0x344e, 0x2f },
++	{ 0x344f, 0x00 },
++	{ 0x3450, 0xbf },
++	{ 0x3451, 0x00 },
++	{ 0x3452, 0x2f },
++	{ 0x3453, 0x00 },
++	{ 0x3454, 0x27 },
++	{ 0x3455, 0x00 },
++};
++
++static const struct imx290_regval imx290_720p_4lane_settings[] = {
+ 	{ 0x3405, 0x10 },
++	{ IMX290_PHY_LANE_NUM, 0x03 },
++	{ IMX290_CSI_LANE_MODE, 0x03 },
++	/* data rate settings */
+ 	{ 0x3446, 0x4f },
+ 	{ 0x3447, 0x00 },
+ 	{ 0x3448, 0x2f },
+@@ -389,7 +449,7 @@ static const struct imx290_mode imx290_m
+ 	{
+ 		.width = 1920,
+ 		.height = 1080,
+-		.hmax = 0x1130,
++		.hmax = 0x0898,
+ 		.vmax = 0x0465,
+ 		.link_freq_index = FREQ_INDEX_1080P,
+ 		.crop = {
+@@ -398,8 +458,10 @@ static const struct imx290_mode imx290_m
+ 			.width = 1920,
+ 			.height = 1080,
+ 		},
+-		.data = imx290_1080p_settings,
+-		.data_size = ARRAY_SIZE(imx290_1080p_settings),
++		.mode_data = imx290_1080p_common_settings,
++		.mode_data_size = ARRAY_SIZE(imx290_1080p_common_settings),
++		.lane_data = imx290_1080p_2lane_settings,
++		.lane_data_size = ARRAY_SIZE(imx290_1080p_2lane_settings),
+ 		.clk_data = {
+ 			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
+ 			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
+@@ -409,7 +471,7 @@ static const struct imx290_mode imx290_m
+ 	{
+ 		.width = 1280,
+ 		.height = 720,
+-		.hmax = 0x19c8,
++		.hmax = 0x0ce4,
+ 		.vmax = 0x02ee,
+ 		.link_freq_index = FREQ_INDEX_720P,
+ 		.crop = {
+@@ -418,8 +480,10 @@ static const struct imx290_mode imx290_m
+ 			.width = 1280,
+ 			.height = 720,
+ 		},
+-		.data = imx290_720p_settings,
+-		.data_size = ARRAY_SIZE(imx290_720p_settings),
++		.mode_data = imx290_720p_common_settings,
++		.mode_data_size = ARRAY_SIZE(imx290_720p_common_settings),
++		.lane_data = imx290_720p_2lane_settings,
++		.lane_data_size = ARRAY_SIZE(imx290_720p_2lane_settings),
+ 		.clk_data = {
+ 			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
+ 			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
+@@ -441,8 +505,10 @@ static const struct imx290_mode imx290_m
+ 			.width = 1920,
+ 			.height = 1080,
+ 		},
+-		.data = imx290_1080p_settings,
+-		.data_size = ARRAY_SIZE(imx290_1080p_settings),
++		.mode_data = imx290_1080p_common_settings,
++		.mode_data_size = ARRAY_SIZE(imx290_1080p_common_settings),
++		.lane_data = imx290_1080p_4lane_settings,
++		.lane_data_size = ARRAY_SIZE(imx290_1080p_4lane_settings),
+ 		.clk_data = {
+ 			[CLK_37_125] = imx290_37_125mhz_clock_720p,
+ 			[CLK_74_25] = imx290_74_250mhz_clock_720p,
+@@ -461,8 +527,10 @@ static const struct imx290_mode imx290_m
+ 			.width = 1280,
+ 			.height = 720,
+ 		},
+-		.data = imx290_720p_settings,
+-		.data_size = ARRAY_SIZE(imx290_720p_settings),
++		.mode_data = imx290_720p_common_settings,
++		.mode_data_size = ARRAY_SIZE(imx290_720p_common_settings),
++		.lane_data = imx290_720p_4lane_settings,
++		.lane_data_size = ARRAY_SIZE(imx290_720p_4lane_settings),
+ 		.clk_data = {
+ 			[CLK_37_125] = imx290_37_125mhz_clock_720p,
+ 			[CLK_74_25] = imx290_74_250mhz_clock_720p,
+@@ -1016,8 +1084,18 @@ static int imx290_start_streaming(struct
+ 	}
+ 
+ 	/* Apply default values of current mode */
+-	ret = imx290_set_register_array(imx290, imx290->current_mode->data,
+-					imx290->current_mode->data_size);
++	ret = imx290_set_register_array(imx290,
++					imx290->current_mode->mode_data,
++					imx290->current_mode->mode_data_size);
++	if (ret < 0) {
++		dev_err(imx290->dev, "Could not set current mode\n");
++		return ret;
++	}
++
++	/* Apply lane config registers of current mode */
++	ret = imx290_set_register_array(imx290,
++					imx290->current_mode->lane_data,
++					imx290->current_mode->lane_data_size);
+ 	if (ret < 0) {
+ 		dev_err(imx290->dev, "Could not set current mode\n");
+ 		return ret;
+@@ -1082,49 +1160,6 @@ static int imx290_get_regulators(struct
+ 				       imx290->supplies);
+ }
+ 
+-static int imx290_set_data_lanes(struct imx290 *imx290)
+-{
+-	int ret = 0, laneval, frsel;
+-
+-	switch (imx290->nlanes) {
+-	case 2:
+-		laneval = 0x01;
+-		frsel = 0x02;
+-		break;
+-	case 4:
+-		laneval = 0x03;
+-		frsel = 0x01;
+-		break;
+-	default:
+-		/*
+-		 * We should never hit this since the data lane count is
+-		 * validated in probe itself
+-		 */
+-		dev_err(imx290->dev, "Lane configuration not supported\n");
+-		ret = -EINVAL;
+-		goto exit;
+-	}
+-
+-	ret = imx290_write_reg(imx290, IMX290_PHY_LANE_NUM, laneval);
+-	if (ret) {
+-		dev_err(imx290->dev, "Error setting Physical Lane number register\n");
+-		goto exit;
+-	}
+-
+-	ret = imx290_write_reg(imx290, IMX290_CSI_LANE_MODE, laneval);
+-	if (ret) {
+-		dev_err(imx290->dev, "Error setting CSI Lane mode register\n");
+-		goto exit;
+-	}
+-
+-	ret = imx290_write_reg(imx290, IMX290_FR_FDG_SEL, frsel);
+-	if (ret)
+-		dev_err(imx290->dev, "Error setting FR/FDG SEL register\n");
+-
+-exit:
+-	return ret;
+-}
+-
+ static int imx290_power_on(struct device *dev)
+ {
+ 	struct i2c_client *client = to_i2c_client(dev);
+@@ -1149,9 +1184,6 @@ static int imx290_power_on(struct device
+ 	gpiod_set_value_cansleep(imx290->rst_gpio, 0);
+ 	usleep_range(30000, 31000);
+ 
+-	/* Set data lane count */
+-	imx290_set_data_lanes(imx290);
+-
+ 	return 0;
+ }
+ 
+@@ -1275,8 +1307,7 @@ static int imx290_probe(struct i2c_clien
+ 		ret = -EINVAL;
+ 		goto free_err;
+ 	}
+-	imx290->hmax_min = (imx290->nlanes == 2) ? IMX290_HMAX_MIN_2LANE :
+-						 IMX290_HMAX_MIN_4LANE;
++	imx290->hmax_min = IMX290_HMAX_MIN;
+ 
+ 	dev_dbg(dev, "Using %u data lanes\n", imx290->nlanes);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0641-media-i2c-imx290-Fix-the-pixel-rate-at-148.5Mpix-s.patch b/target/linux/bcm27xx/patches-5.10/950-0641-media-i2c-imx290-Fix-the-pixel-rate-at-148.5Mpix-s.patch
new file mode 100644
index 0000000000..e4b5a589d5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0641-media-i2c-imx290-Fix-the-pixel-rate-at-148.5Mpix-s.patch
@@ -0,0 +1,49 @@
+From 3393c38cc1462337f40e24be91f47974bcfc3e4c Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 17 Jun 2021 13:00:39 +0100
+Subject: [PATCH] media: i2c: imx290: Fix the pixel rate at 148.5Mpix/s
+
+Whilst the datasheet lists the link frequency changing between
+1080p and 720p modes, reality is that with the default blanking
+we have
+(1920 + 280) * (1080 + 45) * 60fps = 148.5MPix/s
+and
+(1280 + 2020) * (720 + 30) * 60fps = 148.5MPix/s
+and this reflects reality whether in 10 or 12 bit readout modes.
+
+How this relates to link frequency is unclear as it differs
+from the datasheet, but all exposure and frame rate calcs need
+the pixel rate to be correct, so make it so.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 16 +---------------
+ 1 file changed, 1 insertion(+), 15 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -853,23 +853,9 @@ static inline u8 imx290_get_link_freq_in
+ 	return imx290->current_mode->link_freq_index;
+ }
+ 
+-static s64 imx290_get_link_freq(struct imx290 *imx290)
+-{
+-	u8 index = imx290_get_link_freq_index(imx290);
+-
+-	return *(imx290_link_freqs_ptr(imx290) + index);
+-}
+-
+ static u64 imx290_calc_pixel_rate(struct imx290 *imx290)
+ {
+-	s64 link_freq = imx290_get_link_freq(imx290);
+-	u8 nlanes = imx290->nlanes;
+-	u64 pixel_rate;
+-
+-	/* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
+-	pixel_rate = link_freq * 2 * nlanes;
+-	do_div(pixel_rate, imx290->bpp);
+-	return pixel_rate;
++	return 148500000;
+ }
+ 
+ static int imx290_set_fmt(struct v4l2_subdev *sd,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0642-media-i2c-imx290-Fix-clock-setup-register-assignment.patch b/target/linux/bcm27xx/patches-5.10/950-0642-media-i2c-imx290-Fix-clock-setup-register-assignment.patch
new file mode 100644
index 0000000000..5945f82dff
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0642-media-i2c-imx290-Fix-clock-setup-register-assignment.patch
@@ -0,0 +1,49 @@
+From d9e5544f2fe6d7a6da8dd618c09b7564acc5be31 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Thu, 17 Jun 2021 17:27:46 +0100
+Subject: [PATCH] media: i2c: imx290: Fix clock setup register
+ assignments
+
+When the clock setups were added for the alternate external clocks,
+the settings for 2 lane 720p and 4 lane 1080p were transposed.
+2 lane 720p still worked, but 4 lane 1080p didn't.
+
+Correct the assignments.
+
+Fixes: 6b0c094a5b58 (media: i2c: imx290: Add support for 74.25MHz clock")
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -485,10 +485,10 @@ static const struct imx290_mode imx290_m
+ 		.lane_data = imx290_720p_2lane_settings,
+ 		.lane_data_size = ARRAY_SIZE(imx290_720p_2lane_settings),
+ 		.clk_data = {
+-			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
+-			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
++			[CLK_37_125] = imx290_37_125mhz_clock_720p,
++			[CLK_74_25] = imx290_74_250mhz_clock_720p,
+ 		},
+-		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_1080p),
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_720p),
+ 	},
+ };
+ 
+@@ -510,10 +510,10 @@ static const struct imx290_mode imx290_m
+ 		.lane_data = imx290_1080p_4lane_settings,
+ 		.lane_data_size = ARRAY_SIZE(imx290_1080p_4lane_settings),
+ 		.clk_data = {
+-			[CLK_37_125] = imx290_37_125mhz_clock_720p,
+-			[CLK_74_25] = imx290_74_250mhz_clock_720p,
++			[CLK_37_125] = imx290_37_125mhz_clock_1080p,
++			[CLK_74_25] = imx290_74_250mhz_clock_1080p,
+ 		},
+-		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_720p),
++		.clk_size = ARRAY_SIZE(imx290_37_125mhz_clock_1080p),
+ 	},
+ 	{
+ 		.width = 1280,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0643-drm-vc4-crtc-Add-encoder-to-vc4_crtc_config_pv-proto.patch b/target/linux/bcm27xx/patches-5.10/950-0643-drm-vc4-crtc-Add-encoder-to-vc4_crtc_config_pv-proto.patch
new file mode 100644
index 0000000000..0be9ad33ef
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0643-drm-vc4-crtc-Add-encoder-to-vc4_crtc_config_pv-proto.patch
@@ -0,0 +1,43 @@
+From 23771cfafeedba325b6e9d7dedde11eb25381d67 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 14 Jun 2021 15:27:24 +0200
+Subject: [PATCH] drm/vc4: crtc: Add encoder to vc4_crtc_config_pv
+ prototype
+
+vc4_crtc_config_pv() retrieves the encoder again, even though its only
+caller, vc4_crtc_atomic_enable(), already did.
+
+Pass the encoder pointer as an argument instead of going through all the
+connectors to retrieve it again.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -313,12 +313,11 @@ static void vc4_crtc_pixelvalve_reset(st
+ 	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_FIFO_CLR);
+ }
+ 
+-static void vc4_crtc_config_pv(struct drm_crtc *crtc, struct drm_atomic_state *state)
++static void vc4_crtc_config_pv(struct drm_crtc *crtc, struct drm_encoder *encoder,
++			       struct drm_atomic_state *state)
+ {
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+-							   drm_atomic_get_new_connector_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 	const struct vc4_pv_data *pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc);
+@@ -581,7 +580,7 @@ static void vc4_crtc_atomic_enable(struc
+ 	if (vc4_encoder->pre_crtc_configure)
+ 		vc4_encoder->pre_crtc_configure(encoder, state);
+ 
+-	vc4_crtc_config_pv(crtc, state);
++	vc4_crtc_config_pv(crtc, encoder, state);
+ 
+ 	CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) | PV_CONTROL_EN);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0644-drm-vc4-crtc-Rework-the-encoder-retrieval-code-again.patch b/target/linux/bcm27xx/patches-5.10/950-0644-drm-vc4-crtc-Rework-the-encoder-retrieval-code-again.patch
new file mode 100644
index 0000000000..3b8a0c097d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0644-drm-vc4-crtc-Rework-the-encoder-retrieval-code-again.patch
@@ -0,0 +1,96 @@
+From f1712f12335eb07211fe2869e8daee521f558ae1 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 21 Jun 2021 16:07:22 +0200
+Subject: [PATCH] drm/vc4: crtc: Rework the encoder retrieval code
+ (again)
+
+It turns out the encoder retrieval code, in addition to being
+unnecessarily complicated, has a bug when only the planes and crtcs are
+affected by a given atomic commit.
+
+Indeed, in such a case, either drm_atomic_get_old_connector_state or
+drm_atomic_get_new_connector_state will return NULL and thus our encoder
+retrieval code will not match on anything.
+
+We can however simplify the code by using drm_for_each_encoder_mask, the
+drm_crtc_state storing the encoders a given CRTC is connected to
+directly and without relying on any other state.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 30 +++++++++---------------------
+ drivers/gpu/drm/vc4/vc4_drv.h  |  4 +---
+ 2 files changed, 10 insertions(+), 24 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -280,26 +280,14 @@ static u32 vc4_crtc_get_fifo_full_level_
+  * same CRTC.
+  */
+ struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
+-					 struct drm_atomic_state *state,
+-					 struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
+-										  struct drm_connector *connector))
++					 struct drm_crtc_state *state)
+ {
+-	struct drm_connector *connector;
+-	struct drm_connector_list_iter conn_iter;
++	struct drm_encoder *encoder;
+ 
+-	drm_connector_list_iter_begin(crtc->dev, &conn_iter);
+-	drm_for_each_connector_iter(connector, &conn_iter) {
+-		struct drm_connector_state *conn_state = get_state(state, connector);
+-
+-		if (!conn_state)
+-			continue;
+-
+-		if (conn_state->crtc == crtc) {
+-			drm_connector_list_iter_end(&conn_iter);
+-			return connector->encoder;
+-		}
+-	}
+-	drm_connector_list_iter_end(&conn_iter);
++	WARN_ON(hweight32(state->encoder_mask) > 1);
++
++	drm_for_each_encoder_mask(encoder, crtc->dev, state->encoder_mask)
++		return encoder;
+ 
+ 	return NULL;
+ }
+@@ -534,8 +522,7 @@ static void vc4_crtc_atomic_disable(stru
+ 	struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state,
+ 									 crtc);
+ 	struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state);
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+-							   drm_atomic_get_old_connector_state);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, old_state);
+ 	struct drm_device *dev = crtc->dev;
+ 
+ 	require_hvs_enabled(dev);
+@@ -562,10 +549,11 @@ static void vc4_crtc_atomic_disable(stru
+ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc,
+ 				   struct drm_atomic_state *state)
+ {
++	struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
++									 crtc);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+-	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state,
+-							   drm_atomic_get_new_connector_state);
++	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, new_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 
+ 	require_hvs_enabled(dev);
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -523,9 +523,7 @@ vc4_crtc_to_vc4_pv_data(const struct vc4
+ }
+ 
+ struct drm_encoder *vc4_get_crtc_encoder(struct drm_crtc *crtc,
+-					 struct drm_atomic_state *state,
+-					 struct drm_connector_state *(*get_state)(struct drm_atomic_state *state,
+-										  struct drm_connector *connector));
++					 struct drm_crtc_state *state);
+ 
+ struct vc4_crtc_state {
+ 	struct drm_crtc_state base;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0645-drm-vc4-crtc-Add-some-logging.patch b/target/linux/bcm27xx/patches-5.10/950-0645-drm-vc4-crtc-Add-some-logging.patch
new file mode 100644
index 0000000000..fbc1f90e3f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0645-drm-vc4-crtc-Add-some-logging.patch
@@ -0,0 +1,38 @@
+From bcdc0a4520ea59c3e888ebb91c8f41e55841297d Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 21 Jun 2021 16:13:02 +0200
+Subject: [PATCH] drm/vc4: crtc: Add some logging
+
+The encoder retrieval code has been a source of bugs and glitches in the
+past and the crtc <-> encoder association been wrong in a number of
+different ways.
+
+Add some logging to quickly spot issues if they occur.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -525,6 +525,9 @@ static void vc4_crtc_atomic_disable(stru
+ 	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, old_state);
+ 	struct drm_device *dev = crtc->dev;
+ 
++	drm_dbg(dev, "Disabling CRTC %s (%u) connected to Encoder %s (%u)",
++		crtc->name, crtc->base.id, encoder->name, encoder->base.id);
++
+ 	require_hvs_enabled(dev);
+ 
+ 	/* Disable vblank irq handling before crtc is disabled. */
+@@ -556,6 +559,9 @@ static void vc4_crtc_atomic_enable(struc
+ 	struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, new_state);
+ 	struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
+ 
++	drm_dbg(dev, "Enabling CRTC %s (%u) connected to Encoder %s (%u)",
++		crtc->name, crtc->base.id, encoder->name, encoder->base.id);
++
+ 	require_hvs_enabled(dev);
+ 
+ 	/* Enable vblank irq handling before crtc is started otherwise
diff --git a/target/linux/bcm27xx/patches-5.10/950-0646-drm-vc4-Leverage-the-load-tracker-on-the-BCM2711.patch b/target/linux/bcm27xx/patches-5.10/950-0646-drm-vc4-Leverage-the-load-tracker-on-the-BCM2711.patch
new file mode 100644
index 0000000000..be486cc17a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0646-drm-vc4-Leverage-the-load-tracker-on-the-BCM2711.patch
@@ -0,0 +1,121 @@
+From e404d30f2b14a83f223aab6c92da2a52d1c91f61 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 21 Jun 2021 17:19:22 +0200
+Subject: [PATCH] drm/vc4: Leverage the load tracker on the BCM2711
+
+The load tracker was initially designed to report and warn about a load
+too high for the HVS. To do so, it computes for each plane the impact
+it's going to have on the HVS, and will warn (if it's enabled) if we go
+over what the hardware can process.
+
+While the limits being used are a bit irrelevant to the BCM2711, the
+algorithm to compute the HVS load will be one component used in order to
+compute the core clock rate on the BCM2711.
+
+Let's remove the hooks to prevent the load tracker to do its
+computation, but since we don't have the same limits, don't check them
+against them, and prevent the debugfs file to enable it from being
+created.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_debugfs.c |  7 +++++--
+ drivers/gpu/drm/vc4/vc4_drv.h     |  3 ---
+ drivers/gpu/drm/vc4/vc4_kms.c     | 16 +++++-----------
+ drivers/gpu/drm/vc4/vc4_plane.c   |  3 ---
+ 4 files changed, 10 insertions(+), 19 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_debugfs.c
++++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
+@@ -7,6 +7,7 @@
+ #include <linux/circ_buf.h>
+ #include <linux/ctype.h>
+ #include <linux/debugfs.h>
++#include <linux/platform_device.h>
+ 
+ #include "vc4_drv.h"
+ #include "vc4_regs.h"
+@@ -26,8 +27,10 @@ vc4_debugfs_init(struct drm_minor *minor
+ 	struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
+ 	struct vc4_debugfs_info_entry *entry;
+ 
+-	debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
+-			    minor->debugfs_root, &vc4->load_tracker_enabled);
++	if (!of_device_is_compatible(vc4->hvs->pdev->dev.of_node,
++				     "brcm,bcm2711-vc5"))
++		debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
++				    minor->debugfs_root, &vc4->load_tracker_enabled);
+ 
+ 	list_for_each_entry(entry, &vc4->debugfs_list, link) {
+ 		drm_debugfs_create_files(&entry->info, 1,
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -205,9 +205,6 @@ struct vc4_dev {
+ 
+ 	int power_refcount;
+ 
+-	/* Set to true when the load tracker is supported. */
+-	bool load_tracker_available;
+-
+ 	/* Set to true when the load tracker is active. */
+ 	bool load_tracker_enabled;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -598,9 +598,6 @@ static int vc4_load_tracker_atomic_check
+ 	struct drm_plane *plane;
+ 	int i;
+ 
+-	if (!vc4->load_tracker_available)
+-		return 0;
+-
+ 	priv_state = drm_atomic_get_private_obj_state(state,
+ 						      &vc4->load_tracker);
+ 	if (IS_ERR(priv_state))
+@@ -675,9 +672,6 @@ static void vc4_load_tracker_obj_fini(st
+ {
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+ 
+-	if (!vc4->load_tracker_available)
+-		return;
+-
+ 	drm_atomic_private_obj_fini(&vc4->load_tracker);
+ }
+ 
+@@ -685,9 +679,6 @@ static int vc4_load_tracker_obj_init(str
+ {
+ 	struct vc4_load_tracker_state *load_state;
+ 
+-	if (!vc4->load_tracker_available)
+-		return 0;
+-
+ 	load_state = kzalloc(sizeof(*load_state), GFP_KERNEL);
+ 	if (!load_state)
+ 		return -ENOMEM;
+@@ -891,9 +882,12 @@ int vc4_kms_load(struct drm_device *dev)
+ 					      "brcm,bcm2711-vc5");
+ 	int ret;
+ 
++	/*
++	 * The limits enforced by the load tracker aren't relevant for
++	 * the BCM2711, but the load tracker computations are used for
++	 * the core clock rate calculation.
++	 */
+ 	if (!is_vc5) {
+-		vc4->load_tracker_available = true;
+-
+ 		/* Start with the load tracker enabled. Can be
+ 		 * disabled through the debugfs load_tracker file.
+ 		 */
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -534,9 +534,6 @@ static void vc4_plane_calc_load(struct d
+ 	struct vc4_dev *vc4;
+ 
+ 	vc4 = to_vc4_dev(state->plane->dev);
+-	if (!vc4->load_tracker_available)
+-		return;
+-
+ 	vc4_state = to_vc4_plane_state(state);
+ 	crtc_state = drm_atomic_get_existing_crtc_state(state->state,
+ 							state->crtc);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0647-drm-vc4-Fix-timings-for-interlaced-modes.patch b/target/linux/bcm27xx/patches-5.10/950-0647-drm-vc4-Fix-timings-for-interlaced-modes.patch
new file mode 100644
index 0000000000..8d11e66169
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0647-drm-vc4-Fix-timings-for-interlaced-modes.patch
@@ -0,0 +1,83 @@
+From 5afb722d255335954c6b67470e0d261ea5d5ab7a Mon Sep 17 00:00:00 2001
+From: kFYatek <4499762+kFYatek@users.noreply.github.com>
+Date: Wed, 23 Jun 2021 01:11:26 +0200
+Subject: [PATCH] drm/vc4: Fix timings for interlaced modes
+
+Increase the number of post-sync blanking lines on odd fields instead of
+decreasing it on even fields. This makes the total number of lines
+properly match the modelines.
+
+Additionally fix the value of PV_VCONTROL_ODD_DELAY, which did not take
+pixels_per_clock into account, causing some displays to invert the
+fields when driven by bcm2711.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c |  7 ++++---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 12 ++++++------
+ 2 files changed, 10 insertions(+), 9 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -342,7 +342,8 @@ static void vc4_crtc_config_pv(struct dr
+ 				 PV_HORZB_HACTIVE));
+ 
+ 	CRTC_WRITE(PV_VERTA,
+-		   VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end,
++		   VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end +
++				 interlace,
+ 				 PV_VERTA_VBP) |
+ 		   VC4_SET_FIELD(mode->crtc_vsync_end - mode->crtc_vsync_start,
+ 				 PV_VERTA_VSYNC));
+@@ -354,7 +355,7 @@ static void vc4_crtc_config_pv(struct dr
+ 	if (interlace) {
+ 		CRTC_WRITE(PV_VERTA_EVEN,
+ 			   VC4_SET_FIELD(mode->crtc_vtotal -
+-					 mode->crtc_vsync_end - 1,
++					 mode->crtc_vsync_end,
+ 					 PV_VERTA_VBP) |
+ 			   VC4_SET_FIELD(mode->crtc_vsync_end -
+ 					 mode->crtc_vsync_start,
+@@ -374,7 +375,7 @@ static void vc4_crtc_config_pv(struct dr
+ 			   PV_VCONTROL_CONTINUOUS |
+ 			   (is_dsi ? PV_VCONTROL_DSI : 0) |
+ 			   PV_VCONTROL_INTERLACE |
+-			   VC4_SET_FIELD(mode->htotal * pixel_rep / 2,
++			   VC4_SET_FIELD(mode->htotal * pixel_rep / (2 * ppc),
+ 					 PV_VCONTROL_ODD_DELAY));
+ 		CRTC_WRITE(PV_VSYNCD_EVEN, 0);
+ 	} else {
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -735,12 +735,12 @@ static void vc4_hdmi_set_timings(struct
+ 				   VC4_HDMI_VERTA_VFP) |
+ 		     VC4_SET_FIELD(mode->crtc_vdisplay, VC4_HDMI_VERTA_VAL));
+ 	u32 vertb = (VC4_SET_FIELD(0, VC4_HDMI_VERTB_VSPO) |
+-		     VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end,
++		     VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end +
++				   interlaced,
+ 				   VC4_HDMI_VERTB_VBP));
+ 	u32 vertb_even = (VC4_SET_FIELD(0, VC4_HDMI_VERTB_VSPO) |
+ 			  VC4_SET_FIELD(mode->crtc_vtotal -
+-					mode->crtc_vsync_end -
+-					interlaced,
++					mode->crtc_vsync_end,
+ 					VC4_HDMI_VERTB_VBP));
+ 
+ 	HDMI_WRITE(HDMI_HORZA,
+@@ -781,12 +781,12 @@ static void vc5_hdmi_set_timings(struct
+ 				   VC5_HDMI_VERTA_VFP) |
+ 		     VC4_SET_FIELD(mode->crtc_vdisplay, VC5_HDMI_VERTA_VAL));
+ 	u32 vertb = (VC4_SET_FIELD(0, VC5_HDMI_VERTB_VSPO) |
+-		     VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end,
++		     VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end +
++				   interlaced,
+ 				   VC4_HDMI_VERTB_VBP));
+ 	u32 vertb_even = (VC4_SET_FIELD(0, VC5_HDMI_VERTB_VSPO) |
+ 			  VC4_SET_FIELD(mode->crtc_vtotal -
+-					mode->crtc_vsync_end -
+-					interlaced,
++					mode->crtc_vsync_end,
+ 					VC4_HDMI_VERTB_VBP));
+ 	unsigned char gcp;
+ 	bool gcp_en;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0648-drm-vc4-Don-t-create-hvs_load_tracker-on-fkms.patch b/target/linux/bcm27xx/patches-5.10/950-0648-drm-vc4-Don-t-create-hvs_load_tracker-on-fkms.patch
new file mode 100644
index 0000000000..199aa6efa2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0648-drm-vc4-Don-t-create-hvs_load_tracker-on-fkms.patch
@@ -0,0 +1,23 @@
+From d695c7afe2e688663041f8861ebd31c1e8275f27 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Thu, 24 Jun 2021 12:00:49 +0100
+Subject: [PATCH] drm/vc4: Don't create hvs_load_tracker on fkms
+
+fkms doesn't use vc4->hvs so protect against that
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_debugfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_debugfs.c
++++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
+@@ -27,7 +27,7 @@ vc4_debugfs_init(struct drm_minor *minor
+ 	struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
+ 	struct vc4_debugfs_info_entry *entry;
+ 
+-	if (!of_device_is_compatible(vc4->hvs->pdev->dev.of_node,
++	if (vc4->hvs && !of_device_is_compatible(vc4->hvs->pdev->dev.of_node,
+ 				     "brcm,bcm2711-vc5"))
+ 		debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
+ 				    minor->debugfs_root, &vc4->load_tracker_enabled);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0649-media-rpivid-Fix-H265-aux-ent-reuse-of-the-same-slot.patch b/target/linux/bcm27xx/patches-5.10/950-0649-media-rpivid-Fix-H265-aux-ent-reuse-of-the-same-slot.patch
new file mode 100644
index 0000000000..6ef221136f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0649-media-rpivid-Fix-H265-aux-ent-reuse-of-the-same-slot.patch
@@ -0,0 +1,151 @@
+From e3e645fde7d3141767c52a1ae0ffd2f94d0046a4 Mon Sep 17 00:00:00 2001
+From: John Cox <jc@kynesim.co.uk>
+Date: Thu, 24 Jun 2021 14:43:49 +0100
+Subject: [PATCH] media: rpivid: Fix H265 aux ent reuse of the same
+ slot
+
+It is legitimate, though unusual, for an aux ent associated with a slot
+to be selected in phase 0 before a previous selection has been used and
+released in phase 2. Fix such that if the slot is found to be in use
+that the aux ent associated with it is reused rather than an new aux
+ent being created. This fixes a problem where when the first aux ent
+was released the second was lost track of.
+
+This bug spotted in Nick's testing. It may explain some other occasional,
+unreliable decode error reports where dmesg included "Missing DPB AUX
+ent" logging.
+
+Signed-off-by: John Cox <jc@kynesim.co.uk>
+---
+ drivers/staging/media/rpivid/rpivid_h265.c | 75 ++++++++++++++--------
+ 1 file changed, 49 insertions(+), 26 deletions(-)
+
+--- a/drivers/staging/media/rpivid/rpivid_h265.c
++++ b/drivers/staging/media/rpivid/rpivid_h265.c
+@@ -371,7 +371,8 @@ static void aux_q_free(struct rpivid_ctx
+ 	kfree(aq);
+ }
+ 
+-static struct rpivid_q_aux *aux_q_alloc(struct rpivid_ctx *const ctx)
++static struct rpivid_q_aux *aux_q_alloc(struct rpivid_ctx *const ctx,
++					const unsigned int q_index)
+ {
+ 	struct rpivid_dev *const dev = ctx->dev;
+ 	struct rpivid_q_aux *const aq = kzalloc(sizeof(*aq), GFP_KERNEL);
+@@ -379,11 +380,17 @@ static struct rpivid_q_aux *aux_q_alloc(
+ 	if (!aq)
+ 		return NULL;
+ 
+-	aq->refcount = 1;
+ 	if (gptr_alloc(dev, &aq->col, ctx->colmv_picsize,
+ 		       DMA_ATTR_FORCE_CONTIGUOUS | DMA_ATTR_NO_KERNEL_MAPPING))
+ 		goto fail;
+ 
++	/*
++	 * Spinlock not required as called in P0 only and
++	 * aux checks done by _new
++	 */
++	aq->refcount = 1;
++	aq->q_index = q_index;
++	ctx->aux_ents[q_index] = aq;
+ 	return aq;
+ 
+ fail:
+@@ -398,22 +405,38 @@ static struct rpivid_q_aux *aux_q_new(st
+ 	unsigned long lockflags;
+ 
+ 	spin_lock_irqsave(&ctx->aux_lock, lockflags);
+-	aq = ctx->aux_free;
+-	if (aq) {
++	/*
++	 * If we already have this allocated to a slot then use that
++	 * and assume that it will all work itself out in the pipeline
++	 */
++	if ((aq = ctx->aux_ents[q_index]) != NULL) {
++		++aq->refcount;
++	} else if ((aq = ctx->aux_free) != NULL) {
+ 		ctx->aux_free = aq->next;
+ 		aq->next = NULL;
+ 		aq->refcount = 1;
++		aq->q_index = q_index;
++		ctx->aux_ents[q_index] = aq;
+ 	}
+ 	spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
+ 
+-	if (!aq) {
+-		aq = aux_q_alloc(ctx);
+-		if (!aq)
+-			return NULL;
+-	}
++	if (!aq)
++		aq = aux_q_alloc(ctx, q_index);
++
++	return aq;
++}
++
++static struct rpivid_q_aux *aux_q_ref_idx(struct rpivid_ctx *const ctx,
++					  const int q_index)
++{
++	unsigned long lockflags;
++	struct rpivid_q_aux *aq;
++
++	spin_lock_irqsave(&ctx->aux_lock, lockflags);
++	if ((aq = ctx->aux_ents[q_index]) != NULL)
++		++aq->refcount;
++	spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
+ 
+-	aq->q_index = q_index;
+-	ctx->aux_ents[q_index] = aq;
+ 	return aq;
+ }
+ 
+@@ -436,21 +459,21 @@ static void aux_q_release(struct rpivid_
+ 			  struct rpivid_q_aux **const paq)
+ {
+ 	struct rpivid_q_aux *const aq = *paq;
+-	*paq = NULL;
+-
+-	if (aq) {
+-		unsigned long lockflags;
++	unsigned long lockflags;
+ 
+-		spin_lock_irqsave(&ctx->aux_lock, lockflags);
++	if (!aq)
++		return;
+ 
+-		if (--aq->refcount == 0) {
+-			aq->next = ctx->aux_free;
+-			ctx->aux_free = aq;
+-			ctx->aux_ents[aq->q_index] = NULL;
+-		}
++	*paq = NULL;
+ 
+-		spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
++	spin_lock_irqsave(&ctx->aux_lock, lockflags);
++	if (--aq->refcount == 0) {
++		aq->next = ctx->aux_free;
++		ctx->aux_free = aq;
++		ctx->aux_ents[aq->q_index] = NULL;
++		aq->q_index = ~0U;
+ 	}
++	spin_unlock_irqrestore(&ctx->aux_lock, lockflags);
+ }
+ 
+ static void aux_q_init(struct rpivid_ctx *const ctx)
+@@ -1958,12 +1981,12 @@ static void rpivid_h265_setup(struct rpi
+ 		}
+ 
+ 		if (use_aux) {
+-			dpb_q_aux[i] = aux_q_ref(ctx,
+-						 ctx->aux_ents[buffer_index]);
++			dpb_q_aux[i] = aux_q_ref_idx(ctx, buffer_index);
+ 			if (!dpb_q_aux[i])
+ 				v4l2_warn(&dev->v4l2_dev,
+-					  "Missing DPB AUX ent %d index=%d\n",
+-					  i, buffer_index);
++					  "Missing DPB AUX ent %d, timestamp=%lld, index=%d\n",
++					  i, (long long)sh->dpb[i].timestamp,
++					  buffer_index);
+ 		}
+ 
+ 		de->ref_addrs[i] =
diff --git a/target/linux/bcm27xx/patches-5.10/950-0650-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch b/target/linux/bcm27xx/patches-5.10/950-0650-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch
new file mode 100644
index 0000000000..56a1e6862b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0650-Support-RPi-DPI-interface-in-mode6-for-18-bit-color.patch
@@ -0,0 +1,214 @@
+From 16edbdfde51fc3180cecb00ad0aa311bd4567650 Mon Sep 17 00:00:00 2001
+From: Joerg Quinten <aBUGSworstnightmare@gmail.com>
+Date: Fri, 18 Jun 2021 13:02:29 +0200
+Subject: [PATCH] Support RPi DPI interface in mode6 for 18-bit color
+
+A matching media bus format was added and an overlay for using it,
+both with FB and VC4 was added as well.
+
+Signed-off-by: Joerg Quinten <aBUGSworstnightmare@gmail.com>
+---
+ .../bindings/display/panel/panel-simple.yaml  |  2 +
+ .../media/v4l/subdev-formats.rst              | 74 +++++++++++++++++++
+ drivers/gpu/drm/panel/panel-simple.c          | 35 +++++++++
+ drivers/gpu/drm/vc4/vc4_dpi.c                 | 10 +++
+ include/uapi/linux/media-bus-format.h         |  4 +-
+ 5 files changed, 124 insertions(+), 1 deletion(-)
+
+--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
++++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+@@ -147,6 +147,8 @@ properties:
+       - ivo,m133nwf4-r0
+         # Innolux AT043TN24 4.3" WQVGA TFT LCD panel
+       - innolux,at043tn24
++        # Innolux AT056tN53V1 5.6" VGA (640x480) TFT LCD panel
++      - innolux,at056tn53v1
+         # Innolux AT070TN92 7.0" WQVGA TFT LCD panel
+       - innolux,at070tn92
+         # Innolux G070Y2-L01 7" WVGA (800x480) TFT LCD panel
+--- a/Documentation/userspace-api/media/v4l/subdev-formats.rst
++++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst
+@@ -908,6 +908,43 @@ The following tables list existing packe
+       - g\ :sub:`5`
+       - g\ :sub:`4`
+       - g\ :sub:`3`
++    * .. _MEDIA-BUS-FMT-BGR666-1X18:
++
++      - MEDIA_BUS_FMT_RGB666_1X18
++      - 0x101f
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      - b\ :sub:`5`
++      - b\ :sub:`4`
++      - b\ :sub:`3`
++      - b\ :sub:`2`
++      - b\ :sub:`1`
++      - b\ :sub:`0`
++      - g\ :sub:`5`
++      - g\ :sub:`4`
++      - g\ :sub:`3`
++      - g\ :sub:`2`
++      - g\ :sub:`1`
++      - g\ :sub:`0`
++      - r\ :sub:`5`
++      - r\ :sub:`4`
++      - r\ :sub:`3`
++      - r\ :sub:`2`
++      - r\ :sub:`1`
++      - r\ :sub:`0`
+     * .. _MEDIA-BUS-FMT-RGB666-1X18:
+ 
+       - MEDIA_BUS_FMT_RGB666_1X18
+@@ -982,6 +1019,43 @@ The following tables list existing packe
+       - g\ :sub:`2`
+       - g\ :sub:`1`
+       - g\ :sub:`0`
++    * .. _MEDIA-BUS-FMT-BGR666-1X24_CPADHI:
++
++      - MEDIA_BUS_FMT_BGR666_1X24_CPADHI
++      - 0x101e
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      -
++      - 0
++      - 0
++      - b\ :sub:`5`
++      - b\ :sub:`4`
++      - b\ :sub:`3`
++      - b\ :sub:`2`
++      - b\ :sub:`1`
++      - b\ :sub:`0`
++      - 0
++      - 0
++      - g\ :sub:`5`
++      - g\ :sub:`4`
++      - g\ :sub:`3`
++      - g\ :sub:`2`
++      - g\ :sub:`1`
++      - g\ :sub:`0`
++      - 0
++      - 0
++      - r\ :sub:`5`
++      - r\ :sub:`4`
++      - r\ :sub:`3`
++      - r\ :sub:`2`
++      - r\ :sub:`1`
++      - r\ :sub:`0`
+     * .. _MEDIA-BUS-FMT-RGB666-1X24_CPADHI:
+ 
+       - MEDIA_BUS_FMT_RGB666_1X24_CPADHI
+--- a/drivers/gpu/drm/panel/panel-simple.c
++++ b/drivers/gpu/drm/panel/panel-simple.c
+@@ -2093,6 +2093,38 @@ static const struct panel_desc innolux_a
+ 	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
+ };
+ 
++static const struct display_timing innolux_at056tn53v1_timing = {
++	.pixelclock = { 39700000, 39700000, 39700000},
++	.hactive = { 640, 640, 640 },
++	.hfront_porch = { 16, 16, 16 },
++	.hback_porch = { 134, 134, 134 },
++	.hsync_len = { 10, 10, 10},
++	.vactive = { 480, 480, 480 },
++	.vfront_porch = { 32, 32, 32},
++	.vback_porch = { 11, 11, 11 },
++	.vsync_len = { 2, 2, 2 },
++	.flags = DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_PHSYNC,
++};
++
++static const struct panel_desc innolux_at056tn53v1 = {
++	.timings = &innolux_at056tn53v1_timing,
++	.num_timings = 1,
++	.bpc = 6,
++	.size = {
++		.width = 112,
++		.height = 84,
++	},
++	.delay = {
++		.prepare = 50,
++		.enable = 200,
++		.disable = 110,
++		.unprepare = 200,
++	},
++	.bus_format = MEDIA_BUS_FMT_BGR666_1X24_CPADHI,
++	.bus_flags = DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE,
++	.connector_type = DRM_MODE_CONNECTOR_DPI,
++};
++
+ static const struct drm_display_mode innolux_at070tn92_mode = {
+ 	.clock = 33333,
+ 	.hdisplay = 800,
+@@ -4076,6 +4108,9 @@ static const struct of_device_id platfor
+ 		.compatible = "innolux,at043tn24",
+ 		.data = &innolux_at043tn24,
+ 	}, {
++		.compatible = "innolux,at056tn53v1",
++		.data = &innolux_at056tn53v1,
++	}, {
+ 		.compatible = "innolux,at070tn92",
+ 		.data = &innolux_at070tn92,
+ 	}, {
+--- a/drivers/gpu/drm/vc4/vc4_dpi.c
++++ b/drivers/gpu/drm/vc4/vc4_dpi.c
+@@ -165,10 +165,20 @@ static void vc4_dpi_encoder_enable(struc
+ 			dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2,
+ 					       DPI_FORMAT);
+ 			break;
++		case MEDIA_BUS_FMT_BGR666_1X24_CPADHI:
++			dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_2,
++					       DPI_FORMAT);
++			dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER);
++			break;
+ 		case MEDIA_BUS_FMT_RGB666_1X18:
+ 			dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1,
+ 					       DPI_FORMAT);
+ 			break;
++		case MEDIA_BUS_FMT_BGR666_1X18:
++			dpi_c |= VC4_SET_FIELD(DPI_FORMAT_18BIT_666_RGB_1,
++					       DPI_FORMAT);
++			dpi_c |= VC4_SET_FIELD(DPI_ORDER_BGR, DPI_ORDER);
++			break;
+ 		case MEDIA_BUS_FMT_RGB565_1X16:
+ 			dpi_c |= VC4_SET_FIELD(DPI_FORMAT_16BIT_565_RGB_3,
+ 					       DPI_FORMAT);
+--- a/include/uapi/linux/media-bus-format.h
++++ b/include/uapi/linux/media-bus-format.h
+@@ -34,7 +34,7 @@
+ 
+ #define MEDIA_BUS_FMT_FIXED			0x0001
+ 
+-/* RGB - next is	0x101d */
++/* RGB - next is	0x1020 */
+ #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
+ #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
+ #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
+@@ -45,8 +45,10 @@
+ #define MEDIA_BUS_FMT_BGR565_2X8_LE		0x1006
+ #define MEDIA_BUS_FMT_RGB565_2X8_BE		0x1007
+ #define MEDIA_BUS_FMT_RGB565_2X8_LE		0x1008
++#define MEDIA_BUS_FMT_BGR666_1X18		0x101f
+ #define MEDIA_BUS_FMT_RGB666_1X18		0x1009
+ #define MEDIA_BUS_FMT_RBG888_1X24		0x100e
++#define MEDIA_BUS_FMT_BGR666_1X24_CPADHI	0x101e
+ #define MEDIA_BUS_FMT_RGB666_1X24_CPADHI	0x1015
+ #define MEDIA_BUS_FMT_RGB666_1X7X3_SPWG		0x1010
+ #define MEDIA_BUS_FMT_BGR888_1X24		0x1013
diff --git a/target/linux/bcm27xx/patches-5.10/950-0651-overlays-Add-dpi18cpadhi-vc4-kms-dpi-at056tn53v1.patch b/target/linux/bcm27xx/patches-5.10/950-0651-overlays-Add-dpi18cpadhi-vc4-kms-dpi-at056tn53v1.patch
new file mode 100644
index 0000000000..30e0c60d04
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0651-overlays-Add-dpi18cpadhi-vc4-kms-dpi-at056tn53v1.patch
@@ -0,0 +1,163 @@
+From 5f7c6159c8bfa019b3d8d0fd7af930187f29dbad Mon Sep 17 00:00:00 2001
+From: Joerg Quinten <aBUGSworstnightmare@gmail.com>
+Date: Mon, 21 Jun 2021 16:10:32 +0200
+Subject: [PATCH] overlays: Add dpi18cpadhi, vc4-kms-dpi-at056tn53v1
+
+Signed-off-by: Joerg Quinten <aBUGSworstnightmare@gmail.com>
+---
+ arch/arm/boot/dts/bcm270x.dtsi                | 13 ++++++
+ arch/arm/boot/dts/overlays/Makefile           |  2 +
+ arch/arm/boot/dts/overlays/README             | 15 +++++++
+ .../boot/dts/overlays/dpi18cpadhi-overlay.dts | 26 +++++++++++
+ .../vc4-kms-dpi-at056tn53v1-overlay.dts       | 44 +++++++++++++++++++
+ 5 files changed, 100 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/dpi18cpadhi-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-dpi-at056tn53v1-overlay.dts
+
+--- a/arch/arm/boot/dts/bcm270x.dtsi
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -164,6 +164,19 @@
+ &gpio {
+ 	interrupts = <2 17>, <2 18>;
+ 
++	dpi_18bit_cpadhi_gpio0: dpi_18bit_cpadhi_gpio0 {
++		brcm,pins = <0 1 2 3 4 5 6 7 8 9
++			     12 13 14 15 16 17
++			     20 21 22 23 24 25>;
++		brcm,function = <BCM2835_FSEL_ALT2>;
++		brcm,pull = <0>; /* no pull */
++	};
++	dpi_18bit_cpadhi_gpio2: dpi_18bit_cpadhi_gpio2 {
++		brcm,pins = <2 3 4 5 6 7 8 9
++			     12 13 14 15 16 17
++			     20 21 22 23 24 25>;
++		brcm,function = <BCM2835_FSEL_ALT2>;
++	};
+ 	dpi_18bit_gpio0: dpi_18bit_gpio0 {
+ 		brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
+ 			     12 13 14 15 16 17 18 19
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -37,6 +37,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	disable-bt.dtbo \
+ 	disable-wifi.dtbo \
+ 	dpi18.dtbo \
++	dpi18cpadhi.dtbo \
+ 	dpi24.dtbo \
+ 	draws.dtbo \
+ 	dwc-otg.dtbo \
+@@ -215,6 +216,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	upstream.dtbo \
+ 	upstream-pi4.dtbo \
+ 	vc4-fkms-v3d.dtbo \
++	vc4-kms-dpi-at056tn53v1.dtbo \
+ 	vc4-kms-dsi-7inch.dtbo \
+ 	vc4-kms-dsi-lt070me05000.dtbo \
+ 	vc4-kms-dsi-lt070me05000-v2.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -695,6 +695,14 @@ Load:   dtoverlay=dpi18
+ Params: <None>
+ 
+ 
++Name:   dpi18cpadhi
++Info:   Overlay for a generic 18-bit DPI display (in 'mode 6' connection scheme)
++        This uses GPIOs 0-9,12-17,20-25 (so no I2C, uart etc.), and activates
++        the output 3-3 seconds after the kernel has started.
++Load:   dtoverlay=dpi18cpadhi
++Params: <None>
++
++
+ Name:   dpi24
+ Info:   Overlay for a generic 24-bit DPI display
+         This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output
+@@ -3219,6 +3227,13 @@ Params: cma-512                 CMA is 5
+         cma-default             Use upstream's default value
+ 
+ 
++Name:   vc4-kms-dpi-at056tn53v1
++Info:   Enable an Innolux 5.6in VGA TFT connected to DPI interface under KMS.
++        Requires vc4-kms-v3d to be loaded.
++Load:   dtoverlay=vc4-kms-dpi-at056tn53v1
++Params: <None>
++
++
+ Name:   vc4-kms-dsi-7inch
+ Info:   Enable the Raspberry Pi DSI 7" screen.
+         Use edt-ft5406 for the touchscreen element.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dpi18cpadhi-overlay.dts
+@@ -0,0 +1,26 @@
++/*
++ * dpi18cpadhi-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&fb>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
++		};
++	};
++
++	fragment@1 {
++		target = <&vc4>;
++		__overlay__ {
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
++		};
++	};
++};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-kms-dpi-at056tn53v1-overlay.dts
+@@ -0,0 +1,44 @@
++/*
++ * vc4-kms-dpi-at056tn53v1-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include <dt-bindings/pinctrl/bcm2835.h>
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target-path = "/";
++		__overlay__ {
++			panel: panel {
++				compatible = "innolux,at056tn53v1", "simple-panel";
++
++				port {
++					panel_in: endpoint {
++						remote-endpoint = <&dpi_out>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&dpi>;
++		__overlay__  {
++			status = "okay";
++
++			pinctrl-names = "default";
++			pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
++
++			port {
++				dpi_out: endpoint {
++					remote-endpoint = <&panel_in>;
++				};
++			};
++		};
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0652-drm-vc4-Fix-pixel-wrap-issue-with-DVP-teardown.patch b/target/linux/bcm27xx/patches-5.10/950-0652-drm-vc4-Fix-pixel-wrap-issue-with-DVP-teardown.patch
new file mode 100644
index 0000000000..9f4d700c70
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0652-drm-vc4-Fix-pixel-wrap-issue-with-DVP-teardown.patch
@@ -0,0 +1,62 @@
+From 4ec54ed688271966193b572ba5b150c6a4d270fc Mon Sep 17 00:00:00 2001
+From: Tim Gover <tim.gover@raspberrypi.com>
+Date: Thu, 24 Jun 2021 17:58:05 +0100
+Subject: [PATCH] drm: vc4: Fix pixel-wrap issue with DVP teardown
+
+Adjust the DVP enable/disable sequence to avoid a pixel getting stuck
+in an internal, non resettable FIFO within PixelValve when changing
+HDMI resolution.
+
+The blank pixels features of the DVP can prevent signals back to
+pixelvalve causing it to not clear the FIFO. Adjust the ordering
+and timing of operations to ensure the clear signal makes it through to
+pixelvalve.
+
+Signed-off-by: Tim Gover <tim.gover@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 15 ++++++++-------
+ 1 file changed, 8 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -610,12 +610,12 @@ static void vc4_hdmi_encoder_post_crtc_d
+ 
+ 	HDMI_WRITE(HDMI_RAM_PACKET_CONFIG, 0);
+ 
+-	HDMI_WRITE(HDMI_VID_CTL, HDMI_READ(HDMI_VID_CTL) |
+-		   VC4_HD_VID_CTL_CLRRGB | VC4_HD_VID_CTL_CLRSYNC);
++	HDMI_WRITE(HDMI_VID_CTL, HDMI_READ(HDMI_VID_CTL) | VC4_HD_VID_CTL_CLRRGB);
+ 
+-	HDMI_WRITE(HDMI_VID_CTL,
+-		   HDMI_READ(HDMI_VID_CTL) | VC4_HD_VID_CTL_BLANKPIX);
++	mdelay(1);
+ 
++	HDMI_WRITE(HDMI_VID_CTL,
++		   HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
+ 	vc4_hdmi_disable_scrambling(encoder);
+ }
+ 
+@@ -625,12 +625,12 @@ static void vc4_hdmi_encoder_post_crtc_p
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	int ret;
+ 
++	HDMI_WRITE(HDMI_VID_CTL,
++		   HDMI_READ(HDMI_VID_CTL) | VC4_HD_VID_CTL_BLANKPIX);
++
+ 	if (vc4_hdmi->variant->phy_disable)
+ 		vc4_hdmi->variant->phy_disable(vc4_hdmi);
+ 
+-	HDMI_WRITE(HDMI_VID_CTL,
+-		   HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
+-
+ 	clk_disable_unprepare(vc4_hdmi->pixel_bvb_clock);
+ 	if (vc4_hdmi->bvb_req)
+ 		clk_request_done(vc4_hdmi->bvb_req);
+@@ -1010,6 +1010,7 @@ static void vc4_hdmi_encoder_post_crtc_e
+ 
+ 	HDMI_WRITE(HDMI_VID_CTL,
+ 		   VC4_HD_VID_CTL_ENABLE |
++		   VC4_HD_VID_CTL_CLRRGB |
+ 		   VC4_HD_VID_CTL_UNDERFLOW_ENABLE |
+ 		   VC4_HD_VID_CTL_FRAME_COUNTER_RESET |
+ 		   (vsync_pos ? 0 : VC4_HD_VID_CTL_VSYNC_LOW) |
diff --git a/target/linux/bcm27xx/patches-5.10/950-0653-media-i2c-ov9281-Remove-override-of-subdev-name.patch b/target/linux/bcm27xx/patches-5.10/950-0653-media-i2c-ov9281-Remove-override-of-subdev-name.patch
new file mode 100644
index 0000000000..9960562dd4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0653-media-i2c-ov9281-Remove-override-of-subdev-name.patch
@@ -0,0 +1,28 @@
+From c6e499074a7862e5323b324520b5aec7d89ff420 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 28 Jun 2021 10:49:04 +0100
+Subject: [PATCH] media: i2c: ov9281: Remove override of subdev name
+
+From the original Rockchip driver, the subdev was renamed
+from the default to being "mov9281 <dev_name>" whereas the
+default would have been "ov9281 <dev_name>".
+
+Remove the override to drop back to the default rather than
+a vendor custom string.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -1197,8 +1197,6 @@ static int ov9281_probe(struct i2c_clien
+ 	if (ret < 0)
+ 		goto err_power_off;
+ 
+-	snprintf(sd->name, sizeof(sd->name), "m%s %s",
+-		 OV9281_NAME, dev_name(sd->dev));
+ 	ret = v4l2_async_register_subdev_sensor_common(sd);
+ 	if (ret) {
+ 		dev_err(dev, "v4l2 async register subdev failed\n");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0654-drm-vc4-hdmi-Use-a-fixed-rate-for-the-HSM-clock-on-B.patch b/target/linux/bcm27xx/patches-5.10/950-0654-drm-vc4-hdmi-Use-a-fixed-rate-for-the-HSM-clock-on-B.patch
new file mode 100644
index 0000000000..c9d5f3f0a2
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0654-drm-vc4-hdmi-Use-a-fixed-rate-for-the-HSM-clock-on-B.patch
@@ -0,0 +1,140 @@
+From 0e0118339ce920d988c550d9013333c5d948ab08 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 28 Jun 2021 16:07:16 +0200
+Subject: [PATCH] drm/vc4: hdmi: Use a fixed rate for the HSM clock on
+ BCM2835
+
+Before the introduction of the BCM2711 support, the HSM clock rate was
+fixed, and was the CEC and audio clock source on the SoCs previously
+supported.
+
+The HSM clock is also the source of the internal state machine of the
+controller and needs to run faster than the pixel clock. All these
+requirements were met by running at 101% of the maximum pixel rate,
+meeting the fixed clock requirement for audio and CEC, while remaining
+faster than any pixel clock we might need.
+
+However, the BCM2711 brought support for 4k and therefore increased
+significantly the rate needed for the HSM, and new, independant, clocks
+to feed the audio and CEC clocks. Since the HSM clock can also run much
+higher, we also need to lower its rate if possible to reduce its power
+consumption.
+
+The CEC support code changes its clock divider when the HSM clock rate
+is changed, but the audio support never had a similar feature and will
+glitch out if audio is played back during a mode set.
+
+Since the HSM rate was meant to be fixed on the SoCs prior to the
+BCM2711 anyway, let's introduce back a fixed HSM rate and fix audio.
+
+Fixes: cd4cb49dc5bb ("drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate")
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 54 +++++++++++++++++++++++-----------
+ drivers/gpu/drm/vc4/vc4_hdmi.h |  3 ++
+ 2 files changed, 40 insertions(+), 17 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -908,23 +908,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		return;
+ 	}
+ 
+-	/*
+-	 * As stated in RPi's vc4 firmware "HDMI state machine (HSM) clock must
+-	 * be faster than pixel clock, infinitesimally faster, tested in
+-	 * simulation. Otherwise, exact value is unimportant for HDMI
+-	 * operation." This conflicts with bcm2835's vc4 documentation, which
+-	 * states HSM's clock has to be at least 108% of the pixel clock.
+-	 *
+-	 * Real life tests reveal that vc4's firmware statement holds up, and
+-	 * users are able to use pixel clocks closer to HSM's, namely for
+-	 * 1920x1200@60Hz. So it was decided to have leave a 1% margin between
+-	 * both clocks. Which, for RPi0-3 implies a maximum pixel clock of
+-	 * 162MHz.
+-	 *
+-	 * Additionally, the AXI clock needs to be at least 25% of
+-	 * pixel clock, but HSM ends up being the limiting factor.
+-	 */
+-	hsm_rate = max_t(unsigned long, 120000000, (pixel_rate / 100) * 101);
++	hsm_rate = vc4_hdmi->variant->calc_hsm_clock(vc4_hdmi, pixel_rate);
+ 	vc4_hdmi->hsm_req = clk_request_start(vc4_hdmi->hsm_clock, hsm_rate);
+ 	if (IS_ERR(vc4_hdmi->hsm_req)) {
+ 		DRM_ERROR("Failed to set HSM clock rate: %ld\n", PTR_ERR(vc4_hdmi->hsm_req));
+@@ -1140,6 +1124,39 @@ static const struct drm_encoder_helper_f
+ 	.enable = vc4_hdmi_encoder_enable,
+ };
+ 
++static u32 vc4_hdmi_calc_hsm_clock(struct vc4_hdmi *vc4_hdmi, unsigned long pixel_rate)
++{
++	/*
++	 * Whilst this can vary, all the CEC timings are derived from this
++	 * clock, so make it constant to avoid having to reconfigure CEC on
++	 * every mode change.
++	 */
++
++	return 163682864;
++}
++
++static u32 vc5_hdmi_calc_hsm_clock(struct vc4_hdmi *vc4_hdmi, unsigned long pixel_rate)
++{
++	/*
++	 * As stated in RPi's vc4 firmware "HDMI state machine (HSM) clock must
++	 * be faster than pixel clock, infinitesimally faster, tested in
++	 * simulation. Otherwise, exact value is unimportant for HDMI
++	 * operation." This conflicts with bcm2835's vc4 documentation, which
++	 * states HSM's clock has to be at least 108% of the pixel clock.
++	 *
++	 * Real life tests reveal that vc4's firmware statement holds up, and
++	 * users are able to use pixel clocks closer to HSM's, namely for
++	 * 1920x1200@60Hz. So it was decided to have leave a 1% margin between
++	 * both clocks. Which, for RPi0-3 implies a maximum pixel clock of
++	 * 162MHz.
++	 *
++	 * Additionally, the AXI clock needs to be at least 25% of
++	 * pixel clock, but HSM ends up being the limiting factor.
++	 */
++
++	return max_t(unsigned long, 120000000, (pixel_rate / 100) * 101);
++}
++
+ static u32 vc4_hdmi_channel_map(struct vc4_hdmi *vc4_hdmi, u32 channel_mask)
+ {
+ 	int i;
+@@ -2322,6 +2339,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_disable		= vc4_hdmi_phy_disable,
+ 	.phy_rng_enable		= vc4_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc4_hdmi_phy_rng_disable,
++	.calc_hsm_clock		= vc4_hdmi_calc_hsm_clock,
+ 	.channel_map		= vc4_hdmi_channel_map,
+ 	.supports_hdr		= false,
+ };
+@@ -2350,6 +2368,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_disable		= vc5_hdmi_phy_disable,
+ 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
++	.calc_hsm_clock		= vc5_hdmi_calc_hsm_clock,
+ 	.channel_map		= vc5_hdmi_channel_map,
+ 	.supports_hdr		= true,
+ };
+@@ -2378,6 +2397,7 @@ static const struct vc4_hdmi_variant bcm
+ 	.phy_disable		= vc5_hdmi_phy_disable,
+ 	.phy_rng_enable		= vc5_hdmi_phy_rng_enable,
+ 	.phy_rng_disable	= vc5_hdmi_phy_rng_disable,
++	.calc_hsm_clock		= vc5_hdmi_calc_hsm_clock,
+ 	.channel_map		= vc5_hdmi_channel_map,
+ 	.supports_hdr		= true,
+ };
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
+@@ -97,6 +97,9 @@ struct vc4_hdmi_variant {
+ 	/* Callback to disable the RNG in the PHY */
+ 	void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
+ 
++	/* Callback to calculate hsm clock */
++	u32 (*calc_hsm_clock)(struct vc4_hdmi *vc4_hdmi, unsigned long pixel_rate);
++
+ 	/* Callback to get channel map */
+ 	u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0655-drm-vc4-hdmi-Enable-the-scrambler-on-reconnection.patch b/target/linux/bcm27xx/patches-5.10/950-0655-drm-vc4-hdmi-Enable-the-scrambler-on-reconnection.patch
new file mode 100644
index 0000000000..ebaf3e240b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0655-drm-vc4-hdmi-Enable-the-scrambler-on-reconnection.patch
@@ -0,0 +1,54 @@
+From 6dda05f181e44d54b97fff75162f63d0fb84b944 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 25 Jun 2021 16:22:39 +0200
+Subject: [PATCH] drm/vc4: hdmi: Enable the scrambler on reconnection
+
+If we have a state already and disconnect/reconnect the display, the
+SCDC messages won't be sent again since we didn't go through a disable /
+enable cycle.
+
+In order to fix this, let's call the vc4_hdmi_enable_scrambling function
+in the detect callback if there is a mode and it needs the scrambler to
+be enabled.
+
+Fixes: 74465b84fa27 ("drm/vc4: hdmi: Enable the scrambler")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +++++++++-
+ 1 file changed, 9 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -167,6 +167,8 @@ static void vc4_hdmi_cec_update_clk_div(
+ static void vc4_hdmi_cec_update_clk_div(struct vc4_hdmi *vc4_hdmi) {}
+ #endif
+ 
++static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder);
++
+ static enum drm_connector_status
+ vc4_hdmi_connector_detect(struct drm_connector *connector, bool force)
+ {
+@@ -196,6 +198,8 @@ vc4_hdmi_connector_detect(struct drm_con
+ 			}
+ 		}
+ 
++		vc4_hdmi_enable_scrambling(&vc4_hdmi->encoder.base.base);
++
+ 		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return connector_status_connected;
+ 	}
+@@ -542,9 +546,13 @@ static bool vc4_hdmi_supports_scrambling
+ 
+ static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)
+ {
+-	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
++	struct drm_display_mode *mode;
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 
++	if (!encoder->crtc || !encoder->crtc->state)
++		return;
++
++	mode = &encoder->crtc->state->adjusted_mode;
+ 	if (!vc4_hdmi_supports_scrambling(encoder, mode))
+ 		return;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0656-staging-vc04_services-isp-Set-the-YUV420-YVU420-form.patch b/target/linux/bcm27xx/patches-5.10/950-0656-staging-vc04_services-isp-Set-the-YUV420-YVU420-form.patch
new file mode 100644
index 0000000000..4182788d6f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0656-staging-vc04_services-isp-Set-the-YUV420-YVU420-form.patch
@@ -0,0 +1,39 @@
+From 992fc6d6d31391d2eeff80b8f7f1992fe5e40fe0 Mon Sep 17 00:00:00 2001
+From: Naushir Patuck <naush@raspberrypi.com>
+Date: Tue, 29 Jun 2021 12:50:58 +0100
+Subject: [PATCH] staging: vc04_services: isp: Set the YUV420/YVU420
+ format stride to 64 bytes
+
+The bcm2835 ISP requires the base address of all input/output planes to have 32
+byte alignment. Using a Y stride of 32 bytes would not guarantee that the V
+plane would fulfil this, e.g. a height of 650 lines would mean the V plane
+buffer is not 32 byte aligned for YUV420 formats.
+
+Having a Y stride of 64 bytes would ensure both U and V planes have a 32 byte
+alignment, as the luma height will always be an even number of lines.
+
+Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
+---
+ drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
++++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-isp-fmts.h
+@@ -48,7 +48,7 @@ static const struct bcm2835_isp_fmt supp
+ 		/* YUV formats */
+ 		.fourcc		    = V4L2_PIX_FMT_YUV420,
+ 		.depth		    = 8,
+-		.bytesperline_align = 32,
++		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_I420,
+ 		.size_multiplier_x2 = 3,
+ 		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
+@@ -57,7 +57,7 @@ static const struct bcm2835_isp_fmt supp
+ 	}, {
+ 		.fourcc		    = V4L2_PIX_FMT_YVU420,
+ 		.depth		    = 8,
+-		.bytesperline_align = 32,
++		.bytesperline_align = 64,
+ 		.mmal_fmt	    = MMAL_ENCODING_YV12,
+ 		.size_multiplier_x2 = 3,
+ 		.colorspace_mask    = V4L2_COLORSPACE_MASK_YUV,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0657-Documentation-devicetree-Add-documentation-for-imx37.patch b/target/linux/bcm27xx/patches-5.10/950-0657-Documentation-devicetree-Add-documentation-for-imx37.patch
new file mode 100644
index 0000000000..cd2c028d5e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0657-Documentation-devicetree-Add-documentation-for-imx37.patch
@@ -0,0 +1,142 @@
+From 8b4767bd7bc7e8ae5d115b3a8dabc4fd7e855f4b Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 29 Jun 2021 14:38:23 +0100
+Subject: [PATCH] Documentation: devicetree: Add documentation for
+ imx378 sensor
+
+The imx378 sensor is compatible with the imx477 and shares common
+device tree settings.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ .../devicetree/bindings/media/i2c/imx378.yaml | 113 ++++++++++++++++++
+ MAINTAINERS                                   |   1 +
+ 2 files changed, 114 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/media/i2c/imx378.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/media/i2c/imx378.yaml
+@@ -0,0 +1,113 @@
++# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/media/i2c/imx378.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Sony 1/2.3-Inch 12Mpixel CMOS Digital Image Sensor
++
++maintainers:
++  - Naushir Patuck <naush@raspberypi.com>
++
++description: |-
++  The Sony IMX378 is a 1/2.3-inch CMOS active pixel digital image sensor
++  with an active array size of 4056H x 3040V. It is programmable through
++  I2C interface. The I2C address is fixed to 0x1A as per sensor data sheet.
++  Image data is sent through MIPI CSI-2, which is configured as either 2 or
++  4 data lanes.
++
++properties:
++  compatible:
++    const: sony,imx378
++
++  reg:
++    description: I2C device address
++    maxItems: 1
++
++  clocks:
++    maxItems: 1
++
++  VDIG-supply:
++    description:
++      Digital I/O voltage supply, 1.05 volts
++
++  VANA-supply:
++    description:
++      Analog voltage supply, 2.8 volts
++
++  VDDL-supply:
++    description:
++      Digital core voltage supply, 1.8 volts
++
++  reset-gpios:
++    description: |-
++      Reference to the GPIO connected to the xclr pin, if any.
++      Must be released (set high) after all supplies and INCK are applied.
++
++  # See ../video-interfaces.txt for more details
++  port:
++    type: object
++    properties:
++      endpoint:
++        type: object
++        properties:
++          data-lanes:
++            description: |-
++              The sensor supports either two-lane, or four-lane operation.
++              For two-lane operation the property must be set to <1 2>.
++            items:
++              - const: 1
++              - const: 2
++
++          clock-noncontinuous:
++            type: boolean
++            description: |-
++              MIPI CSI-2 clock is non-continuous if this property is present,
++              otherwise it's continuous.
++
++          link-frequencies:
++            allOf:
++              - $ref: /schemas/types.yaml#/definitions/uint64-array
++            description:
++              Allowed data bus frequencies.
++
++        required:
++          - link-frequencies
++
++required:
++  - compatible
++  - reg
++  - clocks
++  - VANA-supply
++  - VDIG-supply
++  - VDDL-supply
++  - port
++
++additionalProperties: false
++
++examples:
++  - |
++    i2c0 {
++        #address-cells = <1>;
++        #size-cells = <0>;
++
++        imx378: sensor@10 {
++            compatible = "sony,imx378";
++            reg = <0x1a>;
++            clocks = <&imx378_clk>;
++            VANA-supply = <&imx378_vana>;   /* 2.8v */
++            VDIG-supply = <&imx378_vdig>;   /* 1.05v */
++            VDDL-supply = <&imx378_vddl>;   /* 1.8v */
++
++            port {
++                imx378_0: endpoint {
++                    remote-endpoint = <&csi1_ep>;
++                    data-lanes = <1 2>;
++                    clock-noncontinuous;
++                    link-frequencies = /bits/ 64 <450000000>;
++                };
++            };
++        };
++    };
++
++...
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -16360,6 +16360,7 @@ M:	Raspberry Pi Kernel Maintenance <kern
+ L:	linux-media@vger.kernel.org
+ S:	Maintained
+ T:	git git://linuxtv.org/media_tree.git
++F:	Documentation/devicetree/bindings/media/i2c/imx378.yaml
+ F:	Documentation/devicetree/bindings/media/i2c/imx477.yaml
+ F:	drivers/media/i2c/imx477.c
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0658-overlays-Add-overlay-for-imx378-sensor.patch b/target/linux/bcm27xx/patches-5.10/950-0658-overlays-Add-overlay-for-imx378-sensor.patch
new file mode 100644
index 0000000000..1c09045c23
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0658-overlays-Add-overlay-for-imx378-sensor.patch
@@ -0,0 +1,288 @@
+From 07dad18a058170c0bfd38fd1f0eb21407efcbafb Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 29 Jun 2021 14:41:15 +0100
+Subject: [PATCH] overlays: Add overlay for imx378 sensor
+
+This is based off a common overlay which is now also used by the
+imx477 sensor.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |   1 +
+ arch/arm/boot/dts/overlays/README             |   9 ++
+ arch/arm/boot/dts/overlays/imx378-overlay.dts |  10 ++
+ arch/arm/boot/dts/overlays/imx477-overlay.dts | 109 +-----------------
+ .../boot/dts/overlays/imx477_378-overlay.dtsi | 108 +++++++++++++++++
+ 5 files changed, 131 insertions(+), 106 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/imx378-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/imx477_378-overlay.dtsi
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -94,6 +94,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	ilitek251x.dtbo \
+ 	imx219.dtbo \
+ 	imx290.dtbo \
++	imx378.dtbo \
+ 	imx477.dtbo \
+ 	iqaudio-codec.dtbo \
+ 	iqaudio-dac.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1674,6 +1674,15 @@ Params: 4lane                   Enable 4
+         mono                    Denote that the module is a mono sensor.
+ 
+ 
++Name:   imx378
++Info:   Sony IMX378 camera module.
++        Uses Unicam 1, which is the standard camera connector on most Pi
++        variants.
++Load:   dtoverlay=imx378,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 180)
++
++
+ Name:   imx477
+ Info:   Sony IMX477 camera module.
+         Uses Unicam 1, which is the standard camera connector on most Pi
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx378-overlay.dts
+@@ -0,0 +1,10 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IMX378 camera module on VC I2C bus
++/dts-v1/;
++/plugin/;
++
++#include "imx477_378-overlay.dtsi"
++
++&imx477 {
++	compatible = "sony,imx378";
++};
+--- a/arch/arm/boot/dts/overlays/imx477-overlay.dts
++++ b/arch/arm/boot/dts/overlays/imx477-overlay.dts
+@@ -3,111 +3,8 @@
+ /dts-v1/;
+ /plugin/;
+ 
+-#include <dt-bindings/gpio/gpio.h>
++#include "imx477_378-overlay.dtsi"
+ 
+-/{
+-	compatible = "brcm,bcm2835";
+-
+-	fragment@0 {
+-		target = <&i2c_csi_dsi>;
+-		__overlay__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			imx477: imx477@1a {
+-				compatible = "sony,imx477";
+-				reg = <0x1a>;
+-				status = "okay";
+-
+-				clocks = <&imx477_clk>;
+-				clock-names = "xclk";
+-
+-				VANA-supply = <&cam1_reg>;	/* 2.8v */
+-				VDIG-supply = <&imx477_vdig>;	/* 1.05v */
+-				VDDL-supply = <&imx477_vddl>;	/* 1.8v */
+-
+-				rotation = <180>;
+-
+-				port {
+-					imx477_0: endpoint {
+-						remote-endpoint = <&csi1_ep>;
+-						clock-lanes = <0>;
+-						data-lanes = <1 2>;
+-						clock-noncontinuous;
+-						link-frequencies =
+-							/bits/ 64 <450000000>;
+-					};
+-				};
+-			};
+-		};
+-	};
+-
+-	fragment@1 {
+-		target = <&csi1>;
+-		__overlay__ {
+-			status = "okay";
+-
+-			port {
+-				csi1_ep: endpoint {
+-					remote-endpoint = <&imx477_0>;
+-					clock-lanes = <0>;
+-					data-lanes = <1 2>;
+-					clock-noncontinuous;
+-				};
+-			};
+-		};
+-	};
+-
+-	fragment@2 {
+-		target = <&i2c0if>;
+-		__overlay__ {
+-			status = "okay";
+-		};
+-	};
+-
+-	fragment@3 {
+-		target-path="/";
+-		__overlay__ {
+-			imx477_vdig: fixedregulator@0 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "imx477_vdig";
+-				regulator-min-microvolt = <1050000>;
+-				regulator-max-microvolt = <1050000>;
+-			};
+-			imx477_vddl: fixedregulator@1 {
+-				compatible = "regulator-fixed";
+-				regulator-name = "imx477_vddl";
+-				regulator-min-microvolt = <1800000>;
+-				regulator-max-microvolt = <1800000>;
+-			};
+-			imx477_clk: camera-clk {
+-				compatible = "fixed-clock";
+-				#clock-cells = <0>;
+-				clock-frequency = <24000000>;
+-			};
+-		};
+-	};
+-
+-	fragment@4 {
+-		target = <&i2c0mux>;
+-		__overlay__ {
+-			status = "okay";
+-		};
+-	};
+-
+-	fragment@5 {
+-		target = <&cam1_reg>;
+-		__overlay__ {
+-			status = "okay";
+-			regulator-name = "imx477_vana";
+-			startup-delay-us = <300000>;
+-			regulator-min-microvolt = <2800000>;
+-			regulator-max-microvolt = <2800000>;
+-		};
+-	};
+-
+-	__overrides__ {
+-		rotation = <&imx477>,"rotation:0";
+-	};
++&imx477 {
++	compatible = "sony,imx477";
+ };
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/imx477_378-overlay.dtsi
+@@ -0,0 +1,108 @@
++// SPDX-License-Identifier: GPL-2.0-only
++// Definitions for IMX477 camera module on VC I2C bus
++
++/{
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c_csi_dsi>;
++		__overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			imx477: imx477@1a {
++				reg = <0x1a>;
++				status = "okay";
++
++				clocks = <&imx477_clk>;
++				clock-names = "xclk";
++
++				VANA-supply = <&cam1_reg>;	/* 2.8v */
++				VDIG-supply = <&imx477_vdig>;	/* 1.05v */
++				VDDL-supply = <&imx477_vddl>;	/* 1.8v */
++
++				rotation = <180>;
++
++				port {
++					imx477_0: endpoint {
++						remote-endpoint = <&csi1_ep>;
++						clock-lanes = <0>;
++						data-lanes = <1 2>;
++						clock-noncontinuous;
++						link-frequencies =
++							/bits/ 64 <450000000>;
++					};
++				};
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&csi1>;
++		__overlay__ {
++			status = "okay";
++
++			port {
++				csi1_ep: endpoint {
++					remote-endpoint = <&imx477_0>;
++					clock-lanes = <0>;
++					data-lanes = <1 2>;
++					clock-noncontinuous;
++				};
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2c0if>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target-path="/";
++		__overlay__ {
++			imx477_vdig: fixedregulator@0 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx477_vdig";
++				regulator-min-microvolt = <1050000>;
++				regulator-max-microvolt = <1050000>;
++			};
++			imx477_vddl: fixedregulator@1 {
++				compatible = "regulator-fixed";
++				regulator-name = "imx477_vddl";
++				regulator-min-microvolt = <1800000>;
++				regulator-max-microvolt = <1800000>;
++			};
++			imx477_clk: camera-clk {
++				compatible = "fixed-clock";
++				#clock-cells = <0>;
++				clock-frequency = <24000000>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2c0mux>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@5 {
++		target = <&cam1_reg>;
++		__overlay__ {
++			status = "okay";
++			regulator-name = "imx477_vana";
++			startup-delay-us = <300000>;
++			regulator-min-microvolt = <2800000>;
++			regulator-max-microvolt = <2800000>;
++		};
++	};
++
++	__overrides__ {
++		rotation = <&imx477>,"rotation:0";
++	};
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch b/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch
new file mode 100644
index 0000000000..bbb5afae9e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0659-media-i2c-imx477-Extend-driver-to-support-imx378-sen.patch
@@ -0,0 +1,190 @@
+From c298f9514f99b9dfde64bb5f07fe09ee8dfdcd48 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 29 Jun 2021 14:43:01 +0100
+Subject: [PATCH] media: i2c: imx477: Extend driver to support imx378
+ sensor
+
+The imx378 sensor is almost identical to the imx477 and can be
+supported as a "compatible" sensor with just a few extra register
+writes.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/Kconfig  |  2 +-
+ drivers/media/i2c/imx477.c | 68 +++++++++++++++++++++++++++++++++-----
+ 2 files changed, 60 insertions(+), 10 deletions(-)
+
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -807,7 +807,7 @@ config VIDEO_IMX477
+ 	depends on MEDIA_CAMERA_SUPPORT
+ 	help
+ 	  This is a Video4Linux2 sensor driver for the Sony
+-	  IMX477 camera.
++	  IMX477 camera. Also supports the Sony IMX378.
+ 
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called imx477.
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -12,6 +12,7 @@
+ #include <linux/gpio/consumer.h>
+ #include <linux/i2c.h>
+ #include <linux/module.h>
++#include <linux/of_device.h>
+ #include <linux/pm_runtime.h>
+ #include <linux/regulator/consumer.h>
+ #include <media/v4l2-ctrls.h>
+@@ -26,6 +27,7 @@
+ /* Chip ID */
+ #define IMX477_REG_CHIP_ID		0x0016
+ #define IMX477_CHIP_ID			0x0477
++#define IMX378_CHIP_ID			0x0378
+ 
+ #define IMX477_REG_MODE_SELECT		0x0100
+ #define IMX477_MODE_STANDBY		0x00
+@@ -1069,6 +1071,11 @@ static const char * const imx477_supply_
+ #define IMX477_XCLR_MIN_DELAY_US	8000
+ #define IMX477_XCLR_DELAY_RANGE_US	1000
+ 
++struct imx477_compatible_data {
++	unsigned int chip_id;
++	struct imx477_reg_list extra_regs;
++};
++
+ struct imx477 {
+ 	struct v4l2_subdev sd;
+ 	struct media_pad pad[NUM_PADS];
+@@ -1107,6 +1114,9 @@ struct imx477 {
+ 
+ 	/* Current long exposure factor in use. Set through V4L2_CID_VBLANK */
+ 	unsigned int long_exp_shift;
++
++	/* Any extra information related to different compatible sensors */
++	const struct imx477_compatible_data *compatible_data;
+ };
+ 
+ static inline struct imx477 *to_imx477(struct v4l2_subdev *_sd)
+@@ -1673,11 +1683,18 @@ static int imx477_start_streaming(struct
+ {
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	const struct imx477_reg_list *reg_list;
++	const struct imx477_reg_list *extra_regs;
+ 	int ret;
+ 
+ 	if (!imx477->common_regs_written) {
+ 		ret = imx477_write_regs(imx477, mode_common_regs,
+ 					ARRAY_SIZE(mode_common_regs));
++		if (!ret) {
++			extra_regs = &imx477->compatible_data->extra_regs;
++			ret = imx477_write_regs(imx477,	extra_regs->regs,
++						extra_regs->num_of_regs);
++		}
++
+ 		if (ret) {
+ 			dev_err(&client->dev, "%s failed to set common settings\n",
+ 				__func__);
+@@ -1863,7 +1880,7 @@ static int imx477_get_regulators(struct
+ }
+ 
+ /* Verify chip ID */
+-static int imx477_identify_module(struct imx477 *imx477)
++static int imx477_identify_module(struct imx477 *imx477, u32 expected_id)
+ {
+ 	struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
+ 	int ret;
+@@ -1873,16 +1890,18 @@ static int imx477_identify_module(struct
+ 			      IMX477_REG_VALUE_16BIT, &val);
+ 	if (ret) {
+ 		dev_err(&client->dev, "failed to read chip id %x, with error %d\n",
+-			IMX477_CHIP_ID, ret);
++			expected_id, ret);
+ 		return ret;
+ 	}
+ 
+-	if (val != IMX477_CHIP_ID) {
++	if (val != expected_id) {
+ 		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+-			IMX477_CHIP_ID, val);
++			expected_id, val);
+ 		return -EIO;
+ 	}
+ 
++	dev_info(&client->dev, "Device found is imx%x\n", val);
++
+ 	return 0;
+ }
+ 
+@@ -2078,10 +2097,39 @@ error_out:
+ 	return ret;
+ }
+ 
++static const struct imx477_compatible_data imx477_compatible = {
++	.chip_id = IMX477_CHIP_ID,
++	.extra_regs = {
++		.num_of_regs = 0,
++		.regs = NULL
++	}
++};
++
++static const struct imx477_reg imx378_regs[] = {
++	{0x3e35, 0x01},
++	{0x4421, 0x08},
++	{0x3ff9, 0x00},
++};
++
++static const struct imx477_compatible_data imx378_compatible = {
++	.chip_id = IMX378_CHIP_ID,
++	.extra_regs = {
++		.num_of_regs = ARRAY_SIZE(imx378_regs),
++		.regs = imx378_regs
++	}
++};
++
++static const struct of_device_id imx477_dt_ids[] = {
++	{ .compatible = "sony,imx477", .data = &imx477_compatible },
++	{ .compatible = "sony,imx378", .data = &imx378_compatible },
++	{ /* sentinel */ }
++};
++
+ static int imx477_probe(struct i2c_client *client)
+ {
+ 	struct device *dev = &client->dev;
+ 	struct imx477 *imx477;
++	const struct of_device_id *match;
+ 	int ret;
+ 
+ 	imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL);
+@@ -2090,6 +2138,12 @@ static int imx477_probe(struct i2c_clien
+ 
+ 	v4l2_i2c_subdev_init(&imx477->sd, client, &imx477_subdev_ops);
+ 
++	match = of_match_device(imx477_dt_ids, dev);
++	if (!match)
++		return -ENODEV;
++	imx477->compatible_data =
++		(const struct imx477_compatible_data *)match->data;
++
+ 	/* Check the hardware configuration in device tree */
+ 	if (imx477_check_hwcfg(dev))
+ 		return -EINVAL;
+@@ -2126,7 +2180,7 @@ static int imx477_probe(struct i2c_clien
+ 	if (ret)
+ 		return ret;
+ 
+-	ret = imx477_identify_module(imx477);
++	ret = imx477_identify_module(imx477, imx477->compatible_data->chip_id);
+ 	if (ret)
+ 		goto error_power_off;
+ 
+@@ -2198,10 +2252,6 @@ static int imx477_remove(struct i2c_clie
+ 	return 0;
+ }
+ 
+-static const struct of_device_id imx477_dt_ids[] = {
+-	{ .compatible = "sony,imx477" },
+-	{ /* sentinel */ }
+-};
+ MODULE_DEVICE_TABLE(of, imx477_dt_ids);
+ 
+ static const struct dev_pm_ops imx477_pm_ops = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0660-overlays-Make-i2c-rtc-and-i2c-rtc-gpio-share-RTCs.patch b/target/linux/bcm27xx/patches-5.10/950-0660-overlays-Make-i2c-rtc-and-i2c-rtc-gpio-share-RTCs.patch
new file mode 100644
index 0000000000..673729b124
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0660-overlays-Make-i2c-rtc-and-i2c-rtc-gpio-share-RTCs.patch
@@ -0,0 +1,918 @@
+From 299e9ffda004d3f5f722ebbd04be0250a618203a Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 30 Jun 2021 17:03:00 +0100
+Subject: [PATCH] overlays: Make i2c-rtc and i2c-rtc-gpio share RTCs
+
+Lift the set of RTCs out of i2c-rtc and i2c-rtc-gpio to update
+i2c-rtc-gpio and to reduce duplication.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             |  10 +
+ .../arm/boot/dts/overlays/i2c-rtc-common.dtsi | 290 ++++++++++++++++++
+ .../dts/overlays/i2c-rtc-gpio-overlay.dts     | 249 +--------------
+ .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 287 +----------------
+ 4 files changed, 309 insertions(+), 527 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1445,6 +1445,8 @@ Params: abx80x                  Select o
+ 
+         ds1339                  Select the DS1339 device
+ 
++        ds1340                  Select the DS1340 device
++
+         ds3231                  Select the DS3231 device
+ 
+         m41t62                  Select the M41T62 device
+@@ -1457,14 +1459,22 @@ Params: abx80x                  Select o
+ 
+         pcf2129                 Select the PCF2129 device
+ 
++        pcf85063                Select the PCF85063 device
++
++        pcf85063a               Select the PCF85063A device
++
+         pcf8523                 Select the PCF8523 device
+ 
++        pcf85363                Select the PCF85363 device
++
+         pcf8563                 Select the PCF8563 device
+ 
+         rv1805                  Select the Micro Crystal RV1805 device
+ 
+         rv3028                  Select the Micro Crystal RV3028 device
+ 
++        sd3078                  Select the ZXW Shenzhen whwave SD3078 device
++
+         addr                    Sets the address for the RTC. Note that the
+                                 device must be configured to use the specified
+                                 address.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
+@@ -0,0 +1,290 @@
++// Definitions for several I2C based Real Time Clocks
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			abx80x: abx80x@69 {
++				compatible = "abracon,abx80x";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++			};
++		};
++	};
++
++	fragment@1 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ds1307: ds1307@68 {
++				compatible = "dallas,ds1307";
++				reg = <0x68>;
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ds1339: ds1339@68 {
++				compatible = "dallas,ds1339";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++			};
++		};
++	};
++
++	fragment@3 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ds3231: ds3231@68 {
++				compatible = "maxim,ds3231";
++				reg = <0x68>;
++			};
++		};
++	};
++
++	fragment@4 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp7940x: mcp7940x@6f {
++				compatible = "microchip,mcp7940x";
++				reg = <0x6f>;
++			};
++		};
++	};
++
++	fragment@5 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			mcp7941x: mcp7941x@6f {
++				compatible = "microchip,mcp7941x";
++				reg = <0x6f>;
++			};
++		};
++	};
++
++	fragment@6 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf2127@51 {
++				compatible = "nxp,pcf2127";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@7 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf8523: pcf8523@68 {
++				compatible = "nxp,pcf8523";
++				reg = <0x68>;
++			};
++		};
++	};
++
++	fragment@8 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf8563: pcf8563@51 {
++				compatible = "nxp,pcf8563";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@9 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			m41t62: m41t62@68 {
++				compatible = "st,m41t62";
++				reg = <0x68>;
++			};
++		};
++	};
++
++	fragment@10 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			rv3028: rv3028@52 {
++				compatible = "microcrystal,rv3028";
++				reg = <0x52>;
++			};
++		};
++	};
++
++	fragment@11 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf2129@51 {
++				compatible = "nxp,pcf2129";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@12 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85363@51 {
++				compatible = "nxp,pcf85363";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@13 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			rv1805: rv1805@69 {
++				compatible = "microcrystal,rv1805";
++				reg = <0x69>;
++				abracon,tc-diode = "standard";
++				abracon,tc-resistor = <0>;
++			};
++		};
++	};
++
++	fragment@14 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			sd3078: sd3078@32 {
++				compatible = "whwave,sd3078";
++				reg = <0x32>;
++			};
++		};
++	};
++
++	fragment@15 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063@51 {
++				compatible = "nxp,pcf85063";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@16 {
++		target = <&i2cbus>;
++	       __dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			pcf85063a@51 {
++				compatible = "nxp,pcf85063a";
++				reg = <0x51>;
++			};
++		};
++	};
++
++	fragment@17 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			ds1340: ds1340@68 {
++				compatible = "dallas,ds1340";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++			};
++		};
++	};
++
++	__overrides__ {
++		abx80x = <0>,"+0";
++		ds1307 = <0>,"+1";
++		ds1339 = <0>,"+2";
++		ds1340 = <0>,"+17";
++		ds3231 = <0>,"+3";
++		mcp7940x = <0>,"+4";
++		mcp7941x = <0>,"+5";
++		pcf2127 = <0>,"+6";
++		pcf8523 = <0>,"+7";
++		pcf8563 = <0>,"+8";
++		m41t62 = <0>,"+9";
++		rv3028 = <0>,"+10";
++		pcf2129 = <0>,"+11";
++		pcf85363 = <0>,"+12";
++		rv1805 = <0>,"+13";
++		sd3078 = <0>,"+14";
++		pcf85063 = <0>,"+15";
++		pcf85063a = <0>,"+16";
++
++		addr = <&abx80x>, "reg:0",
++		       <&ds1307>, "reg:0",
++		       <&ds1339>, "reg:0",
++		       <&ds3231>, "reg:0",
++		       <&mcp7940x>, "reg:0",
++		       <&mcp7941x>, "reg:0",
++		       <&pcf8523>, "reg:0",
++		       <&pcf8563>, "reg:0",
++		       <&m41t62>, "reg:0",
++		       <&rv1805>, "reg:0";
++		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
++				     <&rv1805>,"abracon,tc-diode";
++		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
++					<&ds1340>,"trickle-resistor-ohms:0",
++					<&abx80x>,"abracon,tc-resistor:0",
++					<&rv3028>,"trickle-resistor-ohms:0",
++					<&rv1805>,"abracon,tc-resistor:0";
++		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
++		wakeup-source = <&ds1339>,"wakeup-source?",
++				<&ds3231>,"wakeup-source?",
++				<&mcp7940x>,"wakeup-source?",
++				<&mcp7941x>,"wakeup-source?",
++				<&m41t62>,"wakeup-source?";
++	};
++};
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+@@ -5,13 +5,13 @@
+ 
+ #include <dt-bindings/gpio/gpio.h>
+ 
+-/ {
+-	compatible = "brcm,bcm2835";
++#include "i2c-rtc-common.dtsi"
+ 
+-	fragment@0 {
++/ {
++	fragment@100 {
+ 		target-path = "/";
+ 		__overlay__ {
+-			i2c_gpio: i2c-gpio-rtc@0 {
++			i2cbus: i2c-gpio-rtc@0 {
+ 				compatible = "i2c-gpio";
+ 				gpios = <&gpio 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* sda */
+ 					 &gpio 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) /* scl */
+@@ -23,244 +23,9 @@
+ 		};
+ 	};
+ 
+-	fragment@1 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			abx80x: abx80x@69 {
+-				compatible = "abracon,abx80x";
+-				reg = <0x69>;
+-				abracon,tc-diode = "standard";
+-				abracon,tc-resistor = <0>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@2 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			ds1307: ds1307@68 {
+-				compatible = "dallas,ds1307";
+-				reg = <0x68>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@3 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			ds1339: ds1339@68 {
+-				compatible = "dallas,ds1339";
+-				trickle-resistor-ohms = <0>;
+-				reg = <0x68>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@4 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			ds3231: ds3231@68 {
+-				compatible = "maxim,ds3231";
+-				reg = <0x68>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@5 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			mcp7940x: mcp7940x@6f {
+-				compatible = "microchip,mcp7940x";
+-				reg = <0x6f>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@6 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			mcp7941x: mcp7941x@6f {
+-				compatible = "microchip,mcp7941x";
+-				reg = <0x6f>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@7 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			pcf2127@51 {
+-				compatible = "nxp,pcf2127";
+-				reg = <0x51>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@8 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			pcf8523: pcf8523@68 {
+-				compatible = "nxp,pcf8523";
+-				reg = <0x68>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@9 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			pcf8563: pcf8563@51 {
+-				compatible = "nxp,pcf8563";
+-				reg = <0x51>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@10 {
+-		target = <&i2c_arm>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			m41t62: m41t62@68 {
+-				compatible = "st,m41t62";
+-				reg = <0x68>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@11 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			rv3028: rv3028@52 {
+-				compatible = "microcrystal,rv3028";
+-				reg = <0x52>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@12 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			pcf2129@51 {
+-				compatible = "nxp,pcf2129";
+-				reg = <0x51>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+-	fragment@13 {
+-		target = <&i2c_gpio>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-			status = "okay";
+-
+-			rv1805: rv1805@69 {
+-				compatible = "microcrystal,rv1805";
+-				reg = <0x69>;
+-				abracon,tc-diode = "standard";
+-				abracon,tc-resistor = <0>;
+-				status = "okay";
+-			};
+-		};
+-	};
+-
+ 	__overrides__ {
+-		abx80x = <0>,"+1";
+-		ds1307 = <0>,"+2";
+-		ds1339 = <0>,"+3";
+-		ds3231 = <0>,"+4";
+-		mcp7940x = <0>,"+5";
+-		mcp7941x = <0>,"+6";
+-		pcf2127 = <0>,"+7";
+-		pcf8523 = <0>,"+8";
+-		pcf8563 = <0>,"+9";
+-		m41t62 = <0>,"+10";
+-		rv3028 = <0>,"+11";
+-		pcf2129 = <0>,"+12";
+-		rv1805 = <0>,"+13";
+-
+-		addr = <&abx80x>, "reg:0",
+-		       <&ds1307>, "reg:0",
+-		       <&ds1339>, "reg:0",
+-		       <&ds3231>, "reg:0",
+-		       <&mcp7940x>, "reg:0",
+-		       <&mcp7941x>, "reg:0",
+-		       <&pcf8523>, "reg:0",
+-		       <&pcf8563>, "reg:0",
+-		       <&m41t62>, "reg:0",
+-		       <&rv1805>, "reg:0";
+-		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+-				     <&rv1805>,"abracon,tc-diode";
+-		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
+-					<&abx80x>,"abracon,tc-resistor:0",
+-					<&rv3028>,"trickle-resistor-ohms:0",
+-					<&rv1805>,"abracon,tc-resistor:0";
+-		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
+-		wakeup-source = <&ds1339>,"wakeup-source?",
+-				<&ds3231>,"wakeup-source?",
+-				<&mcp7940x>,"wakeup-source?",
+-				<&mcp7941x>,"wakeup-source?";
+-		i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
+-		i2c_gpio_scl = <&i2c_gpio>,"gpios:16";
+-		i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
++		i2c_gpio_sda = <&i2cbus>,"gpios:4";
++		i2c_gpio_scl = <&i2cbus>,"gpios:16";
++		i2c_gpio_delay_us = <&i2cbus>,"i2c-gpio,delay-us:0";
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -2,249 +2,9 @@
+ /dts-v1/;
+ /plugin/;
+ 
+-/ {
+-	compatible = "brcm,bcm2835";
+-
+-	fragment@0 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			abx80x: abx80x@69 {
+-				compatible = "abracon,abx80x";
+-				reg = <0x69>;
+-				abracon,tc-diode = "standard";
+-				abracon,tc-resistor = <0>;
+-			};
+-		};
+-	};
+-
+-	fragment@1 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			ds1307: ds1307@68 {
+-				compatible = "dallas,ds1307";
+-				reg = <0x68>;
+-			};
+-		};
+-	};
+-
+-	fragment@2 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			ds1339: ds1339@68 {
+-				compatible = "dallas,ds1339";
+-				trickle-resistor-ohms = <0>;
+-				reg = <0x68>;
+-			};
+-		};
+-	};
+-
+-	fragment@3 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			ds3231: ds3231@68 {
+-				compatible = "maxim,ds3231";
+-				reg = <0x68>;
+-			};
+-		};
+-	};
+-
+-	fragment@4 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			mcp7940x: mcp7940x@6f {
+-				compatible = "microchip,mcp7940x";
+-				reg = <0x6f>;
+-			};
+-		};
+-	};
+-
+-	fragment@5 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			mcp7941x: mcp7941x@6f {
+-				compatible = "microchip,mcp7941x";
+-				reg = <0x6f>;
+-			};
+-		};
+-	};
+-
+-	fragment@6 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf2127@51 {
+-				compatible = "nxp,pcf2127";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@7 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf8523: pcf8523@68 {
+-				compatible = "nxp,pcf8523";
+-				reg = <0x68>;
+-			};
+-		};
+-	};
+-
+-	fragment@8 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf8563: pcf8563@51 {
+-				compatible = "nxp,pcf8563";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@9 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			m41t62: m41t62@68 {
+-				compatible = "st,m41t62";
+-				reg = <0x68>;
+-			};
+-		};
+-	};
+-
+-	fragment@10 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			rv3028: rv3028@52 {
+-				compatible = "microcrystal,rv3028";
+-				reg = <0x52>;
+-			};
+-		};
+-	};
+-
+-	fragment@11 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf2129@51 {
+-				compatible = "nxp,pcf2129";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@12 {
+-		target = <&i2cbus>;
+-	       __dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf85363@51 {
+-				compatible = "nxp,pcf85363";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@13 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			rv1805: rv1805@69 {
+-				compatible = "microcrystal,rv1805";
+-				reg = <0x69>;
+-				abracon,tc-diode = "standard";
+-				abracon,tc-resistor = <0>;
+-			};
+-		};
+-	};
+-
+-	fragment@14 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			sd3078: sd3078@32 {
+-				compatible = "whwave,sd3078";
+-				reg = <0x32>;
+-			};
+-		};
+-	};
+-
+-	fragment@15 {
+-		target = <&i2cbus>;
+-	       __dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf85063@51 {
+-				compatible = "nxp,pcf85063";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@16 {
+-		target = <&i2cbus>;
+-	       __dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			pcf85063a@51 {
+-				compatible = "nxp,pcf85063a";
+-				reg = <0x51>;
+-			};
+-		};
+-	};
+-
+-	fragment@17 {
+-		target = <&i2cbus>;
+-		__dormant__ {
+-			#address-cells = <1>;
+-			#size-cells = <0>;
+-
+-			ds1340: ds1340@68 {
+-				compatible = "dallas,ds1340";
+-				trickle-resistor-ohms = <0>;
+-				reg = <0x68>;
+-			};
+-		};
+-	};
++#include "i2c-rtc-common.dtsi"
+ 
++/ {
+ 	frag100: fragment@100 {
+ 		target = <&i2c_arm>;
+ 		i2cbus: __overlay__ {
+@@ -267,51 +27,8 @@
+ 	};
+ 
+ 	__overrides__ {
+-		abx80x = <0>,"+0";
+-		ds1307 = <0>,"+1";
+-		ds1339 = <0>,"+2";
+-		ds1340 = <0>,"+17";
+-		ds3231 = <0>,"+3";
+-		mcp7940x = <0>,"+4";
+-		mcp7941x = <0>,"+5";
+-		pcf2127 = <0>,"+6";
+-		pcf8523 = <0>,"+7";
+-		pcf8563 = <0>,"+8";
+-		m41t62 = <0>,"+9";
+-		rv3028 = <0>,"+10";
+-		pcf2129 = <0>,"+11";
+-		pcf85363 = <0>,"+12";
+-		rv1805 = <0>,"+13";
+-		sd3078 = <0>,"+14";
+-		pcf85063 = <0>,"+15";
+-		pcf85063a = <0>,"+16";
+-
+ 		i2c0 = <&frag100>, "target:0=",<&i2c0>;
+ 		i2c_csi_dsi = <&frag100>, "target:0=",<&i2c_csi_dsi>,
+ 			      <0>,"+101+102";
+-
+-		addr = <&abx80x>, "reg:0",
+-		       <&ds1307>, "reg:0",
+-		       <&ds1339>, "reg:0",
+-		       <&ds3231>, "reg:0",
+-		       <&mcp7940x>, "reg:0",
+-		       <&mcp7941x>, "reg:0",
+-		       <&pcf8523>, "reg:0",
+-		       <&pcf8563>, "reg:0",
+-		       <&m41t62>, "reg:0",
+-		       <&rv1805>, "reg:0";
+-		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+-				     <&rv1805>,"abracon,tc-diode";
+-		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
+-					<&ds1340>,"trickle-resistor-ohms:0",
+-					<&abx80x>,"abracon,tc-resistor:0",
+-					<&rv3028>,"trickle-resistor-ohms:0",
+-					<&rv1805>,"abracon,tc-resistor:0";
+-		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
+-		wakeup-source = <&ds1339>,"wakeup-source?",
+-				<&ds3231>,"wakeup-source?",
+-				<&mcp7940x>,"wakeup-source?",
+-				<&mcp7941x>,"wakeup-source?",
+-				<&m41t62>,"wakeup-source?";
+ 	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0661-dt-bindings-clk-raspberrypi-Remove-unused-property.patch b/target/linux/bcm27xx/patches-5.10/950-0661-dt-bindings-clk-raspberrypi-Remove-unused-property.patch
new file mode 100644
index 0000000000..a202fa1d07
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0661-dt-bindings-clk-raspberrypi-Remove-unused-property.patch
@@ -0,0 +1,40 @@
+From 821ca0c791f1e7dbee2b6121acb04f71e6d81168 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 23 Jun 2021 11:47:38 +0200
+Subject: [PATCH] dt-bindings: clk: raspberrypi: Remove unused property
+
+The raspberrypi,firmware property has been documented as required in the
+binding but was never actually used in the final version of the binding.
+Remove it.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../bindings/clock/raspberrypi,firmware-clocks.yaml        | 7 -------
+ 1 file changed, 7 deletions(-)
+
+--- a/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml
++++ b/Documentation/devicetree/bindings/clock/raspberrypi,firmware-clocks.yaml
+@@ -16,15 +16,9 @@ properties:
+   compatible:
+     const: raspberrypi,firmware-clocks
+ 
+-  raspberrypi,firmware:
+-    $ref: /schemas/types.yaml#/definitions/phandle
+-    description: >
+-      Phandle to the mailbox node to communicate with the firmware.
+-
+ required:
+   - "#clock-cells"
+   - compatible
+-  - raspberrypi,firmware
+ 
+ additionalProperties: false
+ 
+@@ -32,7 +26,6 @@ examples:
+   - |
+     firmware_clocks: firmware-clocks {
+         compatible = "raspberrypi,firmware-clocks";
+-        raspberrypi,firmware = <&firmware>;
+         #clock-cells = <1>;
+     };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0662-dt-bindings-display-vc4-Add-phandle-to-the-firmware.patch b/target/linux/bcm27xx/patches-5.10/950-0662-dt-bindings-display-vc4-Add-phandle-to-the-firmware.patch
new file mode 100644
index 0000000000..55bb2b5e20
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0662-dt-bindings-display-vc4-Add-phandle-to-the-firmware.patch
@@ -0,0 +1,31 @@
+From 23db49ffa4fb3e0205433f22f56ce73cebe2cb03 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 23 Jun 2021 11:48:35 +0200
+Subject: [PATCH] dt-bindings: display: vc4: Add phandle to the
+ firmware
+
+The vc4 driver will need to tell the firmware that it takes over the
+display for the firmware to free its resources (lower the clock, free
+some memory, etc.)
+
+Let's add an optional phandle to our firmware node.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ .../devicetree/bindings/display/brcm,bcm2835-vc4.yaml        | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
++++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
+@@ -21,6 +21,11 @@ properties:
+       - brcm,bcm2835-vc4
+       - brcm,cygnus-vc4
+ 
++  raspberrypi,firmware:
++    $ref: /schemas/types.yaml#/definitions/phandle
++    description: >
++      Phandle to the mailbox node to communicate with the firmware.
++
+ required:
+   - compatible
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0663-firmware-raspberrypi-Add-RPI_FIRMWARE_NOTIFY_DISPLAY.patch b/target/linux/bcm27xx/patches-5.10/950-0663-firmware-raspberrypi-Add-RPI_FIRMWARE_NOTIFY_DISPLAY.patch
new file mode 100644
index 0000000000..e720b3fec4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0663-firmware-raspberrypi-Add-RPI_FIRMWARE_NOTIFY_DISPLAY.patch
@@ -0,0 +1,25 @@
+From 63c7602ca03b9e10dbeb202ebc1f6aa702c1d17c Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 23 Jun 2021 11:53:46 +0200
+Subject: [PATCH] firmware: raspberrypi: Add
+ RPI_FIRMWARE_NOTIFY_DISPLAY_DONE
+
+The RPI_FIRMWARE_NOTIFY_DISPLAY_DONE firmware call allows to tell the
+firmware the kernel is in charge of the display now and the firmware can
+free whatever resources it was using.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ include/soc/bcm2835/raspberrypi-firmware.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -99,6 +99,7 @@ enum rpi_firmware_property_tag {
+ 	RPI_FIRMWARE_NOTIFY_XHCI_RESET =                      0x00030058,
+ 	RPI_FIRMWARE_GET_REBOOT_FLAGS =                       0x00030064,
+ 	RPI_FIRMWARE_SET_REBOOT_FLAGS =                       0x00038064,
++	RPI_FIRMWARE_NOTIFY_DISPLAY_DONE =                    0x00030066,
+ 
+ 	/* Dispmanx TAGS */
+ 	RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE =                   0x00040001,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0664-drm-vc4-Remove-conflicting-framebuffers-before-calli.patch b/target/linux/bcm27xx/patches-5.10/950-0664-drm-vc4-Remove-conflicting-framebuffers-before-calli.patch
new file mode 100644
index 0000000000..7685933f92
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0664-drm-vc4-Remove-conflicting-framebuffers-before-calli.patch
@@ -0,0 +1,35 @@
+From 89c8ca8b57abe798418bd6544b0fac9aa87cb691 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 25 Jun 2021 17:01:33 +0200
+Subject: [PATCH] drm/vc4: Remove conflicting framebuffers before
+ callind bind_all
+
+The bind hooks will modify their controller registers, so simplefb is
+going to be unusable anyway. Let's avoid any transient state where it
+could still be in the system but no longer functionnal.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -305,6 +305,8 @@ static int vc4_drm_bind(struct device *d
+ 	if (ret)
+ 		return ret;
+ 
++	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
++
+ 	ret = component_bind_all(dev, drm);
+ 	if (ret)
+ 		return ret;
+@@ -315,8 +317,6 @@ static int vc4_drm_bind(struct device *d
+ 			goto unbind_all;
+ 	}
+ 
+-	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
+-
+ 	ret = vc4_kms_load(drm);
+ 	if (ret < 0)
+ 		goto unbind_all;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0665-drm-vc4-Notify-the-firmware-when-DRM-is-in-charge.patch b/target/linux/bcm27xx/patches-5.10/950-0665-drm-vc4-Notify-the-firmware-when-DRM-is-in-charge.patch
new file mode 100644
index 0000000000..6bb1f6fd32
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0665-drm-vc4-Notify-the-firmware-when-DRM-is-in-charge.patch
@@ -0,0 +1,54 @@
+From 154a12e5c0d417cae205b8e16431f29c627311e6 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 23 Jun 2021 11:54:58 +0200
+Subject: [PATCH] drm/vc4: Notify the firmware when DRM is in charge
+
+Once the call to drm_fb_helper_remove_conflicting_framebuffers() has
+been made, simplefb has been unregistered and the KMS driver is entirely
+in charge of the display.
+
+Thus, we can notify the firmware it can free whatever resource it was
+using to maintain simplefb functional.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 19 +++++++++++++++++++
+ 1 file changed, 19 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -36,6 +36,8 @@
+ #include <drm/drm_fb_helper.h>
+ #include <drm/drm_vblank.h>
+ 
++#include <soc/bcm2835/raspberrypi-firmware.h>
++
+ #include "uapi/drm/vc4_drm.h"
+ 
+ #include "vc4_drv.h"
+@@ -305,8 +307,25 @@ static int vc4_drm_bind(struct device *d
+ 	if (ret)
+ 		return ret;
+ 
++	node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0);
++	if (node) {
++		vc4->firmware = rpi_firmware_get(dev->of_node);
++		of_node_put(node);
++
++		if (!vc4->firmware)
++			return -EPROBE_DEFER;
++	}
++
+ 	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
+ 
++	if (vc4->firmware) {
++		ret = rpi_firmware_property(vc4->firmware,
++					    RPI_FIRMWARE_NOTIFY_DISPLAY_DONE,
++					    NULL, 0);
++		if (ret)
++			drm_warn(drm, "Couldn't stop firmware display driver: %d\n", ret);
++	}
++
+ 	ret = component_bind_all(dev, drm);
+ 	if (ret)
+ 		return ret;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0666-ARM-dts-rpi-Add-the-firmware-node-to-vc4.patch b/target/linux/bcm27xx/patches-5.10/950-0666-ARM-dts-rpi-Add-the-firmware-node-to-vc4.patch
new file mode 100644
index 0000000000..54e794c662
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0666-ARM-dts-rpi-Add-the-firmware-node-to-vc4.patch
@@ -0,0 +1,40 @@
+From e7a09a6262abe6181514a0b64f79acec8bc3c405 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 23 Jun 2021 11:56:56 +0200
+Subject: [PATCH] ARM: dts: rpi: Add the firmware node to vc4
+
+Add the firmware phandle to the vc4 node so that we can send it the
+message that we're done with the firmware display.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi | 4 ++++
+ arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 ++++
+ 2 files changed, 8 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -35,6 +35,10 @@
+ 	};
+ };
+ 
++&vc4 {
++	raspberrypi,firmware = <&firmware>;
++};
++
+ &cma {
+ 	/* Limit cma to the lower 768MB to allow room for HIGHMEM on 32-bit */
+ 	alloc-ranges = <0x0 0x00000000 0x30000000>;
+--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
+@@ -76,6 +76,10 @@
+ 	power-domains = <&power RPI_POWER_DOMAIN_USB>;
+ };
+ 
++&vc4 {
++	raspberrypi,firmware = <&firmware>;
++};
++
+ &vec {
+ 	power-domains = <&power RPI_POWER_DOMAIN_VEC>;
+ 	status = "okay";
diff --git a/target/linux/bcm27xx/patches-5.10/950-0667-drm-vc4-hdmi-Put-the-device-on-error-in-pre_crtc_con.patch b/target/linux/bcm27xx/patches-5.10/950-0667-drm-vc4-hdmi-Put-the-device-on-error-in-pre_crtc_con.patch
new file mode 100644
index 0000000000..ec225841b4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0667-drm-vc4-hdmi-Put-the-device-on-error-in-pre_crtc_con.patch
@@ -0,0 +1,65 @@
+From 60ed238e2225599540e47a95ecf50313cca9459e Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 29 Jun 2021 11:36:38 +0200
+Subject: [PATCH] drm/vc4: hdmi: Put the device on error in
+ pre_crtc_configure
+
+In the vc4_hdmi_encoder_pre_crtc_configure() function error path we
+never actually call pm_runtime_put() even though
+pm_runtime_resume_and_get() is our very first call.
+
+Fixes: 4f6e3d66ac52 ("drm/vc4: Add runtime PM support to the HDMI encoder driver")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -900,6 +900,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+ 	if (ret < 0) {
+ 		DRM_ERROR("Failed to retain power domain: %d\n", ret);
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
+@@ -907,12 +908,14 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	ret = clk_set_rate(vc4_hdmi->pixel_clock, pixel_rate);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to set pixel clock rate: %d\n", ret);
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
+ 	ret = clk_prepare_enable(vc4_hdmi->pixel_clock);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to turn on pixel clock: %d\n", ret);
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
+@@ -920,6 +923,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	vc4_hdmi->hsm_req = clk_request_start(vc4_hdmi->hsm_clock, hsm_rate);
+ 	if (IS_ERR(vc4_hdmi->hsm_req)) {
+ 		DRM_ERROR("Failed to set HSM clock rate: %ld\n", PTR_ERR(vc4_hdmi->hsm_req));
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
+@@ -941,6 +945,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		clk_request_done(vc4_hdmi->hsm_req);
+ 		clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
+@@ -952,6 +957,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 		clk_request_done(vc4_hdmi->hsm_req);
+ 		clk_disable_unprepare(vc4_hdmi->hsm_clock);
+ 		clk_disable_unprepare(vc4_hdmi->pixel_clock);
++		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0668-drm-vc4-hdmi-Split-the-CEC-disable-enable-functions-.patch b/target/linux/bcm27xx/patches-5.10/950-0668-drm-vc4-hdmi-Split-the-CEC-disable-enable-functions-.patch
new file mode 100644
index 0000000000..82b85bca78
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0668-drm-vc4-hdmi-Split-the-CEC-disable-enable-functions-.patch
@@ -0,0 +1,109 @@
+From 7090c69d64c3871867e86adc5bf568d89608c965 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 29 Jun 2021 09:53:52 +0200
+Subject: [PATCH] drm/vc4: hdmi: Split the CEC disable / enable
+ functions in two
+
+In order to ease further additions to the CEC enable and disable, let's
+split the function into two functions, one to enable and the other to
+disable.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 75 ++++++++++++++++++++--------------
+ 1 file changed, 45 insertions(+), 30 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1755,7 +1755,7 @@ static irqreturn_t vc4_cec_irq_handler(i
+ 	return ret;
+ }
+ 
+-static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
++static int vc4_hdmi_cec_enable(struct cec_adapter *adap)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
+ 	/* clock period in microseconds */
+@@ -1768,38 +1768,53 @@ static int vc4_hdmi_cec_adap_enable(stru
+ 	val |= ((4700 / usecs) << VC4_HDMI_CEC_CNT_TO_4700_US_SHIFT) |
+ 	       ((4500 / usecs) << VC4_HDMI_CEC_CNT_TO_4500_US_SHIFT);
+ 
+-	if (enable) {
+-		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
+-			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
+-		HDMI_WRITE(HDMI_CEC_CNTRL_5, val);
+-		HDMI_WRITE(HDMI_CEC_CNTRL_2,
+-			   ((1500 / usecs) << VC4_HDMI_CEC_CNT_TO_1500_US_SHIFT) |
+-			   ((1300 / usecs) << VC4_HDMI_CEC_CNT_TO_1300_US_SHIFT) |
+-			   ((800 / usecs) << VC4_HDMI_CEC_CNT_TO_800_US_SHIFT) |
+-			   ((600 / usecs) << VC4_HDMI_CEC_CNT_TO_600_US_SHIFT) |
+-			   ((400 / usecs) << VC4_HDMI_CEC_CNT_TO_400_US_SHIFT));
+-		HDMI_WRITE(HDMI_CEC_CNTRL_3,
+-			   ((2750 / usecs) << VC4_HDMI_CEC_CNT_TO_2750_US_SHIFT) |
+-			   ((2400 / usecs) << VC4_HDMI_CEC_CNT_TO_2400_US_SHIFT) |
+-			   ((2050 / usecs) << VC4_HDMI_CEC_CNT_TO_2050_US_SHIFT) |
+-			   ((1700 / usecs) << VC4_HDMI_CEC_CNT_TO_1700_US_SHIFT));
+-		HDMI_WRITE(HDMI_CEC_CNTRL_4,
+-			   ((4300 / usecs) << VC4_HDMI_CEC_CNT_TO_4300_US_SHIFT) |
+-			   ((3900 / usecs) << VC4_HDMI_CEC_CNT_TO_3900_US_SHIFT) |
+-			   ((3600 / usecs) << VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT) |
+-			   ((3500 / usecs) << VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT));
+-
+-		if (!vc4_hdmi->variant->external_irq_controller)
+-			HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC);
+-	} else {
+-		if (!vc4_hdmi->variant->external_irq_controller)
+-			HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
+-		HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
+-			   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
+-	}
++	HDMI_WRITE(HDMI_CEC_CNTRL_5, val |
++		   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
++	HDMI_WRITE(HDMI_CEC_CNTRL_5, val);
++	HDMI_WRITE(HDMI_CEC_CNTRL_2,
++		   ((1500 / usecs) << VC4_HDMI_CEC_CNT_TO_1500_US_SHIFT) |
++		   ((1300 / usecs) << VC4_HDMI_CEC_CNT_TO_1300_US_SHIFT) |
++		   ((800 / usecs) << VC4_HDMI_CEC_CNT_TO_800_US_SHIFT) |
++		   ((600 / usecs) << VC4_HDMI_CEC_CNT_TO_600_US_SHIFT) |
++		   ((400 / usecs) << VC4_HDMI_CEC_CNT_TO_400_US_SHIFT));
++	HDMI_WRITE(HDMI_CEC_CNTRL_3,
++		   ((2750 / usecs) << VC4_HDMI_CEC_CNT_TO_2750_US_SHIFT) |
++		   ((2400 / usecs) << VC4_HDMI_CEC_CNT_TO_2400_US_SHIFT) |
++		   ((2050 / usecs) << VC4_HDMI_CEC_CNT_TO_2050_US_SHIFT) |
++		   ((1700 / usecs) << VC4_HDMI_CEC_CNT_TO_1700_US_SHIFT));
++	HDMI_WRITE(HDMI_CEC_CNTRL_4,
++		   ((4300 / usecs) << VC4_HDMI_CEC_CNT_TO_4300_US_SHIFT) |
++		   ((3900 / usecs) << VC4_HDMI_CEC_CNT_TO_3900_US_SHIFT) |
++		   ((3600 / usecs) << VC4_HDMI_CEC_CNT_TO_3600_US_SHIFT) |
++		   ((3500 / usecs) << VC4_HDMI_CEC_CNT_TO_3500_US_SHIFT));
++
++	if (!vc4_hdmi->variant->external_irq_controller)
++		HDMI_WRITE(HDMI_CEC_CPU_MASK_CLEAR, VC4_HDMI_CPU_CEC);
++
+ 	return 0;
+ }
+ 
++static int vc4_hdmi_cec_disable(struct cec_adapter *adap)
++{
++	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
++
++	if (!vc4_hdmi->variant->external_irq_controller)
++		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, VC4_HDMI_CPU_CEC);
++
++	HDMI_WRITE(HDMI_CEC_CNTRL_5, HDMI_READ(HDMI_CEC_CNTRL_5) |
++		   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
++
++	return 0;
++}
++
++static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
++{
++	if (enable)
++		return vc4_hdmi_cec_enable(adap);
++	else
++		return vc4_hdmi_cec_disable(adap);
++}
++
+ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch b/target/linux/bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch
new file mode 100644
index 0000000000..cacb29d17a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0669-drm-vc4-hdmi-Make-sure-the-device-is-powered-with-CE.patch
@@ -0,0 +1,45 @@
+From ea4d08578d2e002ce01a2f6913c78fbff8195985 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 29 Jun 2021 11:41:57 +0200
+Subject: [PATCH] drm/vc4: hdmi: Make sure the device is powered with
+ CEC
+
+Similarly to what we encountered with the detect hook with DRM, nothing
+actually prevents any of the CEC callback from being run while the HDMI
+output is disabled.
+
+However, this is an issue since any register access to the controller
+when it's powered down will result in a silent hang.
+
+Let's make sure we run the runtime_pm hooks when the CEC adapter is
+opened and closed by the userspace to avoid that issue.
+
+Fixes: 15b4511a4af6 ("drm/vc4: add HDMI CEC support")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1761,6 +1761,11 @@ static int vc4_hdmi_cec_enable(struct ce
+ 	/* clock period in microseconds */
+ 	const u32 usecs = 1000000 / CEC_CLOCK_FREQ;
+ 	u32 val = HDMI_READ(HDMI_CEC_CNTRL_5);
++	int ret;
++
++	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
++	if (ret)
++		return ret;
+ 
+ 	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
+ 		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
+@@ -1804,6 +1809,8 @@ static int vc4_hdmi_cec_disable(struct c
+ 	HDMI_WRITE(HDMI_CEC_CNTRL_5, HDMI_READ(HDMI_CEC_CNTRL_5) |
+ 		   VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET);
+ 
++	pm_runtime_put(&vc4_hdmi->pdev->dev);
++
+ 	return 0;
+ }
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0670-drm-vc4-hdmi-Add-missing-clk_disable_unprepare-on-er.patch b/target/linux/bcm27xx/patches-5.10/950-0670-drm-vc4-hdmi-Add-missing-clk_disable_unprepare-on-er.patch
new file mode 100644
index 0000000000..03590ba735
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0670-drm-vc4-hdmi-Add-missing-clk_disable_unprepare-on-er.patch
@@ -0,0 +1,28 @@
+From 8865bc13c5e22daa653ce4c1c419a6efaa701dac Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 2 Jul 2021 17:44:56 +0200
+Subject: [PATCH] drm/vc4: hdmi: Add missing clk_disable_unprepare on
+ error path
+
+In vc4_hdmi_encoder_pre_crtc_configure, if clk_request_start for the HSM
+clock fails, we don't call clk_disable_unprepare on the pixel clock even
+though it's enabled by now.
+
+Make sure it's there to avoid leaking that reference.
+
+Fixes: cd4cb49dc5bb ("drm/vc4: hdmi: Adjust HSM clock rate depending on pixel rate")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -923,6 +923,7 @@ static void vc4_hdmi_encoder_pre_crtc_co
+ 	vc4_hdmi->hsm_req = clk_request_start(vc4_hdmi->hsm_clock, hsm_rate);
+ 	if (IS_ERR(vc4_hdmi->hsm_req)) {
+ 		DRM_ERROR("Failed to set HSM clock rate: %ld\n", PTR_ERR(vc4_hdmi->hsm_req));
++		clk_disable_unprepare(vc4_hdmi->pixel_clock);
+ 		pm_runtime_put(&vc4_hdmi->pdev->dev);
+ 		return;
+ 	}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0671-drm-vc4-hdmi-Warn-if-we-access-the-controller-while-.patch b/target/linux/bcm27xx/patches-5.10/950-0671-drm-vc4-hdmi-Warn-if-we-access-the-controller-while-.patch
new file mode 100644
index 0000000000..c522766201
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0671-drm-vc4-hdmi-Warn-if-we-access-the-controller-while-.patch
@@ -0,0 +1,47 @@
+From f67dbf74cc7bce6d85b7c4b5b917c30f2dfc2626 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 5 Jul 2021 10:32:30 +0200
+Subject: [PATCH] drm/vc4: hdmi: Warn if we access the controller while
+ disabled
+
+We've had many silent hangs where the kernel would look like it just
+stalled due to the access to one of the HDMI registers while the
+controller was disabled.
+
+Add a warning if we're about to do that so that it's at least not silent
+anymore.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
+@@ -1,6 +1,8 @@
+ #ifndef _VC4_HDMI_REGS_H_
+ #define _VC4_HDMI_REGS_H_
+ 
++#include <linux/pm_runtime.h>
++
+ #include "vc4_hdmi.h"
+ 
+ #define VC4_HDMI_PACKET_STRIDE			0x24
+@@ -412,6 +414,8 @@ static inline u32 vc4_hdmi_read(struct v
+ 	const struct vc4_hdmi_variant *variant = hdmi->variant;
+ 	void __iomem *base;
+ 
++	WARN_ON(!pm_runtime_active(&hdmi->pdev->dev));
++
+ 	if (reg >= variant->num_registers) {
+ 		dev_warn(&hdmi->pdev->dev,
+ 			 "Invalid register ID %u\n", reg);
+@@ -438,6 +442,8 @@ static inline void vc4_hdmi_write(struct
+ 	const struct vc4_hdmi_variant *variant = hdmi->variant;
+ 	void __iomem *base;
+ 
++	WARN_ON(!pm_runtime_active(&hdmi->pdev->dev));
++
+ 	if (reg >= variant->num_registers) {
+ 		dev_warn(&hdmi->pdev->dev,
+ 			 "Invalid register ID %u\n", reg);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch b/target/linux/bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch
new file mode 100644
index 0000000000..0aaec235d4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0672-drm-vc4-hdmi-Move-initial-register-read-after-pm_run.patch
@@ -0,0 +1,37 @@
+From 9f2c0bf1e2f3784e1f991ab30bba83ffd79b8a19 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 5 Jul 2021 10:48:07 +0200
+Subject: [PATCH] drm/vc4: hdmi: Move initial register read after
+ pm_runtime_get
+
+Commit ecdd08fd9bba ("drm/vc4: hdmi: Make sure the device is powered
+with CEC") made sure that the device is powered while there is
+CEC-related accesses but missed one register read in the variable
+declaration.
+
+Move the variable assignment after the pm_runtime_resume_and_get.
+
+Fixes: ecdd08fd9bba ("drm/vc4: hdmi: Make sure the device is powered with CEC")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1761,13 +1761,14 @@ static int vc4_hdmi_cec_enable(struct ce
+ 	struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
+ 	/* clock period in microseconds */
+ 	const u32 usecs = 1000000 / CEC_CLOCK_FREQ;
+-	u32 val = HDMI_READ(HDMI_CEC_CNTRL_5);
++	u32 val;
+ 	int ret;
+ 
+ 	ret = pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev);
+ 	if (ret)
+ 		return ret;
+ 
++	val = HDMI_READ(HDMI_CEC_CNTRL_5);
+ 	val &= ~(VC4_HDMI_CEC_TX_SW_RESET | VC4_HDMI_CEC_RX_SW_RESET |
+ 		 VC4_HDMI_CEC_CNT_TO_4700_US_MASK |
+ 		 VC4_HDMI_CEC_CNT_TO_4500_US_MASK);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0673-vc4-drv-Only-notify-firmware-of-display-done-with-km.patch b/target/linux/bcm27xx/patches-5.10/950-0673-vc4-drv-Only-notify-firmware-of-display-done-with-km.patch
new file mode 100644
index 0000000000..a15245626f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0673-vc4-drv-Only-notify-firmware-of-display-done-with-km.patch
@@ -0,0 +1,43 @@
+From b14001459c04ec0d4a99c1a422077fbce5a0aebc Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 5 Jul 2021 11:43:12 +0100
+Subject: [PATCH] vc4/drv: Only notify firmware of display done with
+ kms
+
+fkms driver still wants firmware display to be active
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 14 +++++++++++++-
+ 1 file changed, 13 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -258,6 +258,18 @@ const struct of_device_id vc4_dma_range_
+ 	{}
+ };
+ 
++/*
++ * we need this helper function for determining presence of fkms
++ * before it's been bound
++ */
++static bool firmware_kms(void)
++{
++	return of_device_is_available(of_find_compatible_node(NULL, NULL,
++	       "raspberrypi,rpi-firmware-kms")) ||
++	       of_device_is_available(of_find_compatible_node(NULL, NULL,
++	       "raspberrypi,rpi-firmware-kms-2711"));
++}
++
+ static int vc4_drm_bind(struct device *dev)
+ {
+ 	struct platform_device *pdev = to_platform_device(dev);
+@@ -318,7 +330,7 @@ static int vc4_drm_bind(struct device *d
+ 
+ 	drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
+ 
+-	if (vc4->firmware) {
++	if (vc4->firmware && !firmware_kms()) {
+ 		ret = rpi_firmware_property(vc4->firmware,
+ 					    RPI_FIRMWARE_NOTIFY_DISPLAY_DONE,
+ 					    NULL, 0);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0674-dwc_otg-Update-NetBSD-usb.h-header-licence.patch b/target/linux/bcm27xx/patches-5.10/950-0674-dwc_otg-Update-NetBSD-usb.h-header-licence.patch
new file mode 100644
index 0000000000..c2507fa990
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0674-dwc_otg-Update-NetBSD-usb.h-header-licence.patch
@@ -0,0 +1,33 @@
+From 8bc1dcb94a58098b6d6f516c4c0141bded0ca2a1 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 5 Jul 2021 19:38:21 +0100
+Subject: [PATCH] dwc_otg: Update NetBSD usb.h header licence
+
+NetBSD have changed their licensing requirements such that the 2-clause
+licence is preferred. Update usb.h in the downstream dwc_otg code
+accordingly.
+
+See https://www.netbsd.org/about/redistribution.html for more
+information.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/usb/host/dwc_common_port/usb.h | 7 -------
+ 1 file changed, 7 deletions(-)
+
+--- a/drivers/usb/host/dwc_common_port/usb.h
++++ b/drivers/usb/host/dwc_common_port/usb.h
+@@ -14,13 +14,6 @@
+  * 2. Redistributions in binary form must reproduce the above copyright
+  *    notice, this list of conditions and the following disclaimer in the
+  *    documentation and/or other materials provided with the distribution.
+- * 3. All advertising materials mentioning features or use of this software
+- *    must display the following acknowledgement:
+- *        This product includes software developed by the NetBSD
+- *        Foundation, Inc. and its contributors.
+- * 4. Neither the name of The NetBSD Foundation nor the names of its
+- *    contributors may be used to endorse or promote products derived
+- *    from this software without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
diff --git a/target/linux/bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch b/target/linux/bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch
new file mode 100644
index 0000000000..e436a0e54b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0675-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-CEC-int.patch
@@ -0,0 +1,106 @@
+From 687a0fc86f37e0bc74c8382c0d89b0929fade1de Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 5 Jul 2021 15:47:43 +0200
+Subject: [PATCH] drm/vc4: hdmi: Drop devm interrupt handler for CEC
+ interrupts
+
+The CEC interrupt handlers are registered through the
+devm_request_threaded_irq function. However, while free_irq is indeed
+called properly when the device is unbound or bind fails, it's called
+after unbind or bind is done.
+
+In our particular case, it means that on failure it creates a window
+where our interrupt handler can be called, but we're freeing every
+resource (CEC adapter, DRM objects, etc.) it might need.
+
+In order to address this, let's switch to the non-devm variant to
+control better when the handler will be unregistered and allow us to
+make it safe.
+
+Fixes: 15b4511a4af6 ("drm/vc4: add HDMI CEC support")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 49 +++++++++++++++++++++++-----------
+ 1 file changed, 33 insertions(+), 16 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1903,38 +1903,46 @@ static int vc4_hdmi_cec_init(struct vc4_
+ 	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
+ 
+ 	if (vc4_hdmi->variant->external_irq_controller) {
+-		ret = devm_request_threaded_irq(&pdev->dev,
+-						platform_get_irq_byname(pdev, "cec-rx"),
+-						vc4_cec_irq_handler_rx_bare,
+-						vc4_cec_irq_handler_rx_thread, 0,
+-						"vc4 hdmi cec rx", vc4_hdmi);
++		ret = request_threaded_irq(platform_get_irq_byname(pdev, "cec-rx"),
++					   vc4_cec_irq_handler_rx_bare,
++					   vc4_cec_irq_handler_rx_thread, 0,
++					   "vc4 hdmi cec rx", vc4_hdmi);
+ 		if (ret)
+ 			goto err_delete_cec_adap;
+ 
+-		ret = devm_request_threaded_irq(&pdev->dev,
+-						platform_get_irq_byname(pdev, "cec-tx"),
+-						vc4_cec_irq_handler_tx_bare,
+-						vc4_cec_irq_handler_tx_thread, 0,
+-						"vc4 hdmi cec tx", vc4_hdmi);
++		ret = request_threaded_irq(platform_get_irq_byname(pdev, "cec-tx"),
++					   vc4_cec_irq_handler_tx_bare,
++					   vc4_cec_irq_handler_tx_thread, 0,
++					   "vc4 hdmi cec tx", vc4_hdmi);
+ 		if (ret)
+-			goto err_delete_cec_adap;
++			goto err_remove_cec_rx_handler;
+ 	} else {
+ 		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff);
+ 
+-		ret = devm_request_threaded_irq(&pdev->dev, platform_get_irq(pdev, 0),
+-						vc4_cec_irq_handler,
+-						vc4_cec_irq_handler_thread, 0,
+-						"vc4 hdmi cec", vc4_hdmi);
++		ret = request_threaded_irq(platform_get_irq(pdev, 0),
++					   vc4_cec_irq_handler,
++					   vc4_cec_irq_handler_thread, 0,
++					   "vc4 hdmi cec", vc4_hdmi);
+ 		if (ret)
+ 			goto err_delete_cec_adap;
+ 	}
+ 
+ 	ret = cec_register_adapter(vc4_hdmi->cec_adap, &pdev->dev);
+ 	if (ret < 0)
+-		goto err_delete_cec_adap;
++		goto err_remove_handlers;
+ 
+ 	return 0;
+ 
++err_remove_handlers:
++	if (vc4_hdmi->variant->external_irq_controller)
++		free_irq(platform_get_irq_byname(pdev, "cec-tx"), vc4_hdmi);
++	else
++		free_irq(platform_get_irq(pdev, 0), vc4_hdmi);
++
++err_remove_cec_rx_handler:
++	if (vc4_hdmi->variant->external_irq_controller)
++		free_irq(platform_get_irq_byname(pdev, "cec-rx"), vc4_hdmi);
++
+ err_delete_cec_adap:
+ 	cec_delete_adapter(vc4_hdmi->cec_adap);
+ 
+@@ -1943,6 +1951,15 @@ err_delete_cec_adap:
+ 
+ static void vc4_hdmi_cec_exit(struct vc4_hdmi *vc4_hdmi)
+ {
++	struct platform_device *pdev = vc4_hdmi->pdev;
++
++	if (vc4_hdmi->variant->external_irq_controller) {
++		free_irq(platform_get_irq_byname(pdev, "cec-rx"), vc4_hdmi);
++		free_irq(platform_get_irq_byname(pdev, "cec-tx"), vc4_hdmi);
++	} else {
++		free_irq(platform_get_irq(pdev, 0), vc4_hdmi);
++	}
++
+ 	cec_unregister_adapter(vc4_hdmi->cec_adap);
+ }
+ #else
diff --git a/target/linux/bcm27xx/patches-5.10/950-0676-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-hotplug.patch b/target/linux/bcm27xx/patches-5.10/950-0676-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-hotplug.patch
new file mode 100644
index 0000000000..0594e35dbe
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0676-drm-vc4-hdmi-Drop-devm-interrupt-handler-for-hotplug.patch
@@ -0,0 +1,111 @@
+From fda46a52e84a5160d7277e55e1c1be376b0ba579 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 5 Jul 2021 17:31:48 +0200
+Subject: [PATCH] drm/vc4: hdmi: Drop devm interrupt handler for
+ hotplug interrupts
+
+The hotplugs interrupt handlers are registered through the
+devm_request_threaded_irq function. However, while free_irq is indeed
+called properly when the device is unbound or bind fails, it's called
+after unbind or bind is done.
+
+In our particular case, it means that on failure it creates a window
+where our interrupt handler can be called, but we're freeing every
+resource (CEC adapter, DRM objects, etc.) it might need.
+
+In order to address this, let's switch to the non-devm variant to
+control better when the handler will be unregistered and allow us to
+make it safe.
+
+Fixes: f4790083c7c2 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 41 +++++++++++++++++++++++-----------
+ 1 file changed, 28 insertions(+), 13 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1611,26 +1611,28 @@ static irqreturn_t vc4_hdmi_hpd_irq_thre
+ static int vc4_hdmi_hotplug_init(struct vc4_hdmi *vc4_hdmi)
+ {
+ 	struct platform_device *pdev = vc4_hdmi->pdev;
+-	struct device *dev = &pdev->dev;
+ 	struct drm_connector *connector = &vc4_hdmi->connector;
+ 	int ret;
+ 
+ 	if (vc4_hdmi->variant->external_irq_controller) {
+-		ret = devm_request_threaded_irq(dev,
+-						platform_get_irq_byname(pdev, "hpd-connected"),
+-						NULL,
+-						vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
+-						"vc4 hdmi hpd connected", vc4_hdmi);
++		unsigned int hpd_con = platform_get_irq_byname(pdev, "hpd-connected");
++		unsigned int hpd_rm = platform_get_irq_byname(pdev, "hpd-removed");
++
++		ret = request_threaded_irq(hpd_con,
++					   NULL,
++					   vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
++					   "vc4 hdmi hpd connected", vc4_hdmi);
+ 		if (ret)
+ 			return ret;
+ 
+-		ret = devm_request_threaded_irq(dev,
+-						platform_get_irq_byname(pdev, "hpd-removed"),
+-						NULL,
+-						vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
+-						"vc4 hdmi hpd disconnected", vc4_hdmi);
+-		if (ret)
++		ret = request_threaded_irq(hpd_rm,
++					   NULL,
++					   vc4_hdmi_hpd_irq_thread, IRQF_ONESHOT,
++					   "vc4 hdmi hpd disconnected", vc4_hdmi);
++		if (ret) {
++			free_irq(hpd_con, vc4_hdmi);
+ 			return ret;
++		}
+ 
+ 		connector->polled = DRM_CONNECTOR_POLL_HPD;
+ 	}
+@@ -1638,6 +1640,16 @@ static int vc4_hdmi_hotplug_init(struct
+ 	return 0;
+ }
+ 
++static void vc4_hdmi_hotplug_exit(struct vc4_hdmi *vc4_hdmi)
++{
++	struct platform_device *pdev = vc4_hdmi->pdev;
++
++	if (vc4_hdmi->variant->external_irq_controller) {
++		free_irq(platform_get_irq_byname(pdev, "hpd-connected"), vc4_hdmi);
++		free_irq(platform_get_irq_byname(pdev, "hpd-removed"), vc4_hdmi);
++	}
++}
++
+ #ifdef CONFIG_DRM_VC4_HDMI_CEC
+ static irqreturn_t vc4_cec_irq_handler_rx_thread(int irq, void *priv)
+ {
+@@ -2299,7 +2311,7 @@ static int vc4_hdmi_bind(struct device *
+ 
+ 	ret = vc4_hdmi_cec_init(vc4_hdmi);
+ 	if (ret)
+-		goto err_destroy_conn;
++		goto err_free_hotplug;
+ 
+ 	ret = vc4_hdmi_audio_init(vc4_hdmi);
+ 	if (ret)
+@@ -2313,6 +2325,8 @@ static int vc4_hdmi_bind(struct device *
+ 
+ err_free_cec:
+ 	vc4_hdmi_cec_exit(vc4_hdmi);
++err_free_hotplug:
++	vc4_hdmi_hotplug_exit(vc4_hdmi);
+ err_destroy_conn:
+ 	vc4_hdmi_connector_destroy(&vc4_hdmi->connector);
+ err_destroy_encoder:
+@@ -2354,6 +2368,7 @@ static void vc4_hdmi_unbind(struct devic
+ 	kfree(vc4_hdmi->hd_regset.regs);
+ 
+ 	vc4_hdmi_cec_exit(vc4_hdmi);
++	vc4_hdmi_hotplug_exit(vc4_hdmi);
+ 	vc4_hdmi_connector_destroy(&vc4_hdmi->connector);
+ 	drm_encoder_cleanup(&vc4_hdmi->encoder.base.base);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch b/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch
new file mode 100644
index 0000000000..bac5466509
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch
@@ -0,0 +1,35 @@
+From a4ea60641c2e5ac11d3472e723b33b36f16e6bcb Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 5 Jul 2021 16:15:56 +0200
+Subject: [PATCH] drm/vc4: hdmi: Only call into DRM framework if
+ registered
+
+Our hotplug handler will currently call the drm_kms_helper_hotplug_event
+every time a hotplug interrupt is called.
+
+However, since the device is registered after all the drivers have
+finished their bind callback, we have a window between when we install
+our interrupt handler and when drm_dev_register() is eventually called
+where our handler can run and call drm_kms_helper_hotplug_event but the
+device hasn't been registered yet, causing a null pointer dereference.
+
+Fix this by making sure we only call drm_kms_helper_hotplug_event if our
+device has been properly registered.
+
+Fixes: f4790083c7c2 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -1602,7 +1602,7 @@ static irqreturn_t vc4_hdmi_hpd_irq_thre
+ 	struct vc4_hdmi *vc4_hdmi = priv;
+ 	struct drm_device *dev = vc4_hdmi->connector.dev;
+ 
+-	if (dev)
++	if (dev && dev->registered)
+ 		drm_kms_helper_hotplug_event(dev);
+ 
+ 	return IRQ_HANDLED;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0678-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch b/target/linux/bcm27xx/patches-5.10/950-0678-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch
new file mode 100644
index 0000000000..6d86ce3524
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0678-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch
@@ -0,0 +1,24 @@
+From 8f367667b69df3af3d5fa2695f14f97910beadfa Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Thu, 8 Jul 2021 13:48:11 +0100
+Subject: [PATCH] bcm2711_thermal: Don't clamp temperature at zero
+
+The temperature sensor is valid below zero and the linux framework is happy with it.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=315382
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/thermal/broadcom/bcm2711_thermal.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/thermal/broadcom/bcm2711_thermal.c
++++ b/drivers/thermal/broadcom/bcm2711_thermal.c
+@@ -52,7 +52,7 @@ static int bcm2711_get_temp(void *data,
+ 	/* Convert a HW code to a temperature reading (millidegree celsius) */
+ 	t = slope * val + offset;
+ 
+-	*temp = t < 0 ? 0 : t;
++	*temp = t;
+ 
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0679-media-bcm2835-unicam-Forward-input-status-from-subde.patch b/target/linux/bcm27xx/patches-5.10/950-0679-media-bcm2835-unicam-Forward-input-status-from-subde.patch
new file mode 100644
index 0000000000..9a6ed6a7fb
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0679-media-bcm2835-unicam-Forward-input-status-from-subde.patch
@@ -0,0 +1,53 @@
+From bfe4361859005edec5e7ae73274c363910f56d7f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Jakub=20Van=C4=9Bk?= <linuxtardis@gmail.com>
+Date: Wed, 7 Jul 2021 22:48:20 +0200
+Subject: [PATCH] media: bcm2835-unicam: Forward input status from
+ subdevice
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The vidioc_enum_input() v4l2 ioctl is capable of returning
+sensor/input status as well. This is used in current
+GStreamer HEAD for signal detection [1].
+
+bcm2835-unicam does handle this syscall, but it didn't ask
+the subdevice driver about the input status. The input then
+appeared as always present.
+
+This commit adds the necessary query. There is a precedent for
+this - the R-Car VIN V4L2 driver does a similar call [2].
+
+[1]: https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/blob/ce0be27caf69aa9d96b73bc2b50737451b6f6936/sys/v4l2/gstv4l2src.c#L553
+[2]: https://github.com/raspberrypi/linux/blob/7fb9d006d3ff3baf2e205e0c85c4e4fd0a64fcd0/drivers/media/platform/rcar-vin/rcar-v4l2.c#L548
+
+Signed-off-by: Jakub Vaněk <linuxtardis@gmail.com>
+---
+ drivers/media/platform/bcm2835/bcm2835-unicam.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
+@@ -1806,6 +1806,7 @@ static int unicam_enum_input(struct file
+ {
+ 	struct unicam_node *node = video_drvdata(file);
+ 	struct unicam_device *dev = node->dev;
++	int ret;
+ 
+ 	if (inp->index != 0)
+ 		return -EINVAL;
+@@ -1822,6 +1823,14 @@ static int unicam_enum_input(struct file
+ 		inp->capabilities = 0;
+ 		inp->std = 0;
+ 	}
++
++	if (v4l2_subdev_has_op(dev->sensor, video, g_input_status)) {
++		ret = v4l2_subdev_call(dev->sensor, video, g_input_status,
++				       &inp->status);
++		if (ret < 0)
++			return ret;
++	}
++
+ 	snprintf(inp->name, sizeof(inp->name), "Camera 0");
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch b/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch
new file mode 100644
index 0000000000..6428e2fc0f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch
@@ -0,0 +1,94 @@
+From 63f4efd396406bcfea7f72c4ba883a9acf0e039c Mon Sep 17 00:00:00 2001
+From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com>
+Date: Fri, 9 Jul 2021 16:00:22 +0300
+Subject: [PATCH] overlays: Add overlay for Chipdip I2S master DAC
+
+Signed-off-by: Evgenij Sapunov <evgenij.sapunov@chipdip.ru>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 +++
+ .../chipdip-i2s-master-dac-overlay.dts        | 53 +++++++++++++++++++
+ 3 files changed, 60 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -30,6 +30,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	audiosense-pi.dtbo \
+ 	audremap.dtbo \
+ 	balena-fin.dtbo \
++	chipdip-i2s-master-dac.dtbo \
+ 	cma.dtbo \
+ 	dht11.dtbo \
+ 	dionaudio-loco.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -622,6 +622,12 @@ Info:   This overlay is now deprecated -
+ Load:   <Deprecated>
+ 
+ 
++Name:   chipdip-i2s-master-dac
++Info:   Configures Raspberry PI to work as I2S slave with BCLK=64Fs.
++Load:   dtoverlay=chipdip-i2s-master-dac
++Params: <None>
++
++
+ Name:   cma
+ Info:   Set custom CMA sizes, only use if you know what you are doing, might
+         clash with other overlays like vc4-fkms-v3d and vc4-kms-v3d.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
+@@ -0,0 +1,53 @@
++/*
++ * Device Tree overlay for ChipDip I2S master DAC
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2835";
++    fragment@0 {
++        target = <&sound>;
++        __overlay__ {
++            compatible = "simple-audio-card";
++            simple-audio-card,name = "ChipDip I2S master DAC";
++            status="okay";
++            playback_link: simple-audio-card,dai-link@0 {
++                format = "i2s";
++		bitclock-master = <&p_codec_dai>;
++                frame-master = <&p_codec_dai>;
++                p_cpu_dai: cpu {
++                        sound-dai = <&i2s>;
++			dai-tdm-slot-num = <2>;
++			dai-tdm-slot-width = <32>;
++				};
++
++                p_codec_dai: codec {
++                        sound-dai = <&codec_out>;
++                };
++            };
++        };
++    }; 
++
++    fragment@1 {
++        target-path = "/";
++        __overlay__ {
++            codec_out: spdif-transmitter {
++                #address-cells = <0>;
++                #size-cells = <0>;
++                #sound-dai-cells = <0>;
++                compatible = "linux,spdif-dit";
++                status = "okay";
++            };
++        };
++    };
++ 
++    fragment@2 {
++        target = <&i2s>;
++        __overlay__ {
++            #sound-dai-cells = <0>;
++            status = "okay";
++        };
++    };
++}; 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0681-drm-Introduce-an-atomic_commit_setup-function.patch b/target/linux/bcm27xx/patches-5.10/950-0681-drm-Introduce-an-atomic_commit_setup-function.patch
new file mode 100644
index 0000000000..35b874ce71
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0681-drm-Introduce-an-atomic_commit_setup-function.patch
@@ -0,0 +1,95 @@
+From 86fc6b59ae170399aaf8fd9880f1a3f79948f5a3 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 4 Dec 2020 16:11:32 +0100
+Subject: [PATCH] drm: Introduce an atomic_commit_setup function
+
+Private objects storing a state shared across all CRTCs need to be
+carefully handled to avoid a use-after-free issue.
+
+The proper way to do this to track all the commits using that shared
+state and wait for the previous commits to be done before going on with
+the current one to avoid the reordering of commits that could occur.
+
+However, this commit setup needs to be done after
+drm_atomic_helper_setup_commit(), because before the CRTC commit
+structure hasn't been allocated before, and before the workqueue is
+scheduled, because we would be potentially reordered already otherwise.
+
+That means that drivers currently have to roll their own
+drm_atomic_helper_commit() function, even though it would be identical
+if not for the commit setup.
+
+Let's introduce a hook to do so that would be called as part of
+drm_atomic_helper_commit, allowing us to reuse the atomic helpers.
+
+Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/drm_atomic_helper.c      |  9 +++++++++
+ include/drm/drm_modeset_helper_vtables.h | 21 +++++++++++++++++++++
+ 2 files changed, 30 insertions(+)
+
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -2039,6 +2039,9 @@ crtc_or_fake_commit(struct drm_atomic_st
+  * should always call this function from their
+  * &drm_mode_config_funcs.atomic_commit hook.
+  *
++ * Drivers that need to extend the commit setup to private objects can use the
++ * &drm_mode_config_helper_funcs.atomic_commit_setup hook.
++ *
+  * To be able to use this support drivers need to use a few more helper
+  * functions. drm_atomic_helper_wait_for_dependencies() must be called before
+  * actually committing the hardware state, and for nonblocking commits this call
+@@ -2082,8 +2085,11 @@ int drm_atomic_helper_setup_commit(struc
+ 	struct drm_plane *plane;
+ 	struct drm_plane_state *old_plane_state, *new_plane_state;
+ 	struct drm_crtc_commit *commit;
++	const struct drm_mode_config_helper_funcs *funcs;
+ 	int i, ret;
+ 
++	funcs = state->dev->mode_config.helper_private;
++
+ 	for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
+ 		commit = kzalloc(sizeof(*commit), GFP_KERNEL);
+ 		if (!commit)
+@@ -2160,6 +2166,9 @@ int drm_atomic_helper_setup_commit(struc
+ 		new_plane_state->commit = drm_crtc_commit_get(commit);
+ 	}
+ 
++	if (funcs && funcs->atomic_commit_setup)
++		return funcs->atomic_commit_setup(state);
++
+ 	return 0;
+ }
+ EXPORT_SYMBOL(drm_atomic_helper_setup_commit);
+--- a/include/drm/drm_modeset_helper_vtables.h
++++ b/include/drm/drm_modeset_helper_vtables.h
+@@ -1396,6 +1396,27 @@ struct drm_mode_config_helper_funcs {
+ 	 * drm_atomic_helper_commit_tail().
+ 	 */
+ 	void (*atomic_commit_tail)(struct drm_atomic_state *state);
++
++	/**
++	 * @atomic_commit_setup:
++	 *
++	 * This hook is used by the default atomic_commit() hook implemented in
++	 * drm_atomic_helper_commit() together with the nonblocking helpers (see
++	 * drm_atomic_helper_setup_commit()) to extend the DRM commit setup. It
++	 * is not used by the atomic helpers.
++	 *
++	 * This function is called at the end of
++	 * drm_atomic_helper_setup_commit(), so once the commit has been
++	 * properly setup across the generic DRM object states. It allows
++	 * drivers to do some additional commit tracking that isn't related to a
++	 * CRTC, plane or connector, tracked in a &drm_private_obj structure.
++	 *
++	 * Note that the documentation of &drm_private_obj has more details on
++	 * how one should implement this.
++	 *
++	 * This hook is optional.
++	 */
++	int (*atomic_commit_setup)(struct drm_atomic_state *state);
+ };
+ 
+ #endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0682-drm-Document-use-after-free-gotcha-with-private-obje.patch b/target/linux/bcm27xx/patches-5.10/950-0682-drm-Document-use-after-free-gotcha-with-private-obje.patch
new file mode 100644
index 0000000000..da5fa9c64b
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0682-drm-Document-use-after-free-gotcha-with-private-obje.patch
@@ -0,0 +1,44 @@
+From c417eda92ac1a1a89c160826eb2068fbdf1895ab Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 4 Dec 2020 16:11:33 +0100
+Subject: [PATCH] drm: Document use-after-free gotcha with private
+ objects
+
+The private objects have a gotcha that could result in a use-after-free,
+make sure it's properly documented.
+
+Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ include/drm/drm_atomic.h | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+--- a/include/drm/drm_atomic.h
++++ b/include/drm/drm_atomic.h
+@@ -248,6 +248,26 @@ struct drm_private_state_funcs {
+  *    drm_dev_register()
+  * 2/ all calls to drm_atomic_private_obj_fini() must be done after calling
+  *    drm_dev_unregister()
++ *
++ * If that private object is used to store a state shared by multiple
++ * CRTCs, proper care must be taken to ensure that non-blocking commits are
++ * properly ordered to avoid a use-after-free issue.
++ *
++ * Indeed, assuming a sequence of two non-blocking &drm_atomic_commit on two
++ * different &drm_crtc using different &drm_plane and &drm_connector, so with no
++ * resources shared, there's no guarantee on which commit is going to happen
++ * first. However, the second &drm_atomic_commit will consider the first
++ * &drm_private_obj its old state, and will be in charge of freeing it whenever
++ * the second &drm_atomic_commit is done.
++ *
++ * If the first &drm_atomic_commit happens after it, it will consider its
++ * &drm_private_obj the new state and will be likely to access it, resulting in
++ * an access to a freed memory region. Drivers should store (and get a reference
++ * to) the &drm_crtc_commit structure in our private state in
++ * &drm_mode_config_helper_funcs.atomic_commit_setup, and then wait for that
++ * commit to complete as the first step of
++ * &drm_mode_config_helper_funcs.atomic_commit_tail, similar to
++ * drm_atomic_helper_wait_for_dependencies().
+  */
+ struct drm_private_obj {
+ 	/**
diff --git a/target/linux/bcm27xx/patches-5.10/950-0683-drm-vc4-Simplify-a-bit-the-global-atomic_check.patch b/target/linux/bcm27xx/patches-5.10/950-0683-drm-vc4-Simplify-a-bit-the-global-atomic_check.patch
new file mode 100644
index 0000000000..3949941e46
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0683-drm-vc4-Simplify-a-bit-the-global-atomic_check.patch
@@ -0,0 +1,44 @@
+From d88f88dfdce0c6911802cb9a0da0c43ade854183 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 4 Dec 2020 16:11:34 +0100
+Subject: [PATCH] drm/vc4: Simplify a bit the global atomic_check
+
+When we can't allocate a new channel, we can simply return instead of
+having to handle both cases, and that simplifies a bit the code.
+
+Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_kms.c | 13 ++++++-------
+ 1 file changed, 6 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -793,6 +793,7 @@ static int vc4_pv_muxing_atomic_check(st
+ 			to_vc4_crtc_state(new_crtc_state);
+ 		struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
+ 		unsigned int matching_channels;
++		unsigned int channel;
+ 
+ 		if (vc4->firmware_kms)
+ 			continue;
+@@ -836,14 +837,12 @@ static int vc4_pv_muxing_atomic_check(st
+ 		 * but it works so far.
+ 		 */
+ 		matching_channels = hvs_new_state->unassigned_channels & vc4_crtc->data->hvs_available_channels;
+-		if (matching_channels) {
+-			unsigned int channel = ffs(matching_channels) - 1;
+-
+-			new_vc4_crtc_state->assigned_channel = channel;
+-			hvs_new_state->unassigned_channels &= ~BIT(channel);
+-		} else {
++		if (!matching_channels)
+ 			return -EINVAL;
+-		}
++
++		channel = ffs(matching_channels) - 1;
++		new_vc4_crtc_state->assigned_channel = channel;
++		hvs_new_state->unassigned_channels &= ~BIT(channel);
+ 	}
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0684-drm-vc4-hdmi-Don-t-poll-for-the-infoframes-status-on.patch b/target/linux/bcm27xx/patches-5.10/950-0684-drm-vc4-hdmi-Don-t-poll-for-the-infoframes-status-on.patch
new file mode 100644
index 0000000000..baade60d69
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0684-drm-vc4-hdmi-Don-t-poll-for-the-infoframes-status-on.patch
@@ -0,0 +1,63 @@
+From 643f9b3a9e48fb2378d3dde8cfef452f7628e295 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 3 Dec 2020 08:46:24 +0100
+Subject: [PATCH] drm/vc4: hdmi: Don't poll for the infoframes status
+ on setup
+
+The infoframes are sent at a regular interval as a data island packet,
+so we don't need to wait for them to be sent when we're setting them up.
+
+However, we do need to poll when we're enabling since the we can't
+update the packet RAM until it has been sent.
+
+Let's add a boolean flag to tell whether we want to poll or not to
+support both cases.
+
+Suggested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201203074624.721559-1-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -363,7 +363,8 @@ static int vc4_hdmi_connector_init(struc
+ }
+ 
+ static int vc4_hdmi_stop_packet(struct drm_encoder *encoder,
+-				enum hdmi_infoframe_type type)
++				enum hdmi_infoframe_type type,
++				bool poll)
+ {
+ 	struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
+ 	u32 packet_id = type - 0x80;
+@@ -371,6 +372,9 @@ static int vc4_hdmi_stop_packet(struct d
+ 	HDMI_WRITE(HDMI_RAM_PACKET_CONFIG,
+ 		   HDMI_READ(HDMI_RAM_PACKET_CONFIG) & ~BIT(packet_id));
+ 
++	if (!poll)
++		return 0;
++
+ 	return wait_for(!(HDMI_READ(HDMI_RAM_PACKET_STATUS) &
+ 			  BIT(packet_id)), 100);
+ }
+@@ -399,7 +403,7 @@ static void vc4_hdmi_write_infoframe(str
+ 	if (len < 0)
+ 		return;
+ 
+-	ret = vc4_hdmi_stop_packet(encoder, frame->any.type);
++	ret = vc4_hdmi_stop_packet(encoder, frame->any.type, true);
+ 	if (ret) {
+ 		DRM_ERROR("Failed to wait for infoframe to go idle: %d\n", ret);
+ 		return;
+@@ -1283,7 +1287,7 @@ static void vc4_hdmi_audio_reset(struct
+ 	int ret;
+ 
+ 	vc4_hdmi->audio.streaming = false;
+-	ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO);
++	ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO, false);
+ 	if (ret)
+ 		dev_err(dev, "Failed to stop audio infoframe: %d\n", ret);
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0685-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch b/target/linux/bcm27xx/patches-5.10/950-0685-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch
new file mode 100644
index 0000000000..1caf44cfd0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0685-drm-vc4-hvs-Align-the-HVS-atomic-hooks-to-the-new-AP.patch
@@ -0,0 +1,87 @@
+From c53200aa7d0670aa21639512880669b94699aaee Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 15 Dec 2020 16:42:35 +0100
+Subject: [PATCH] drm/vc4: hvs: Align the HVS atomic hooks to the new
+ API
+
+Since the CRTC setup in vc4 is split between the PixelValves/TXP and the
+HVS, only the PV/TXP atomic hooks were updated in the previous commits, but
+it makes sense to update the HVS ones too.
+
+Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201215154243.540115-2-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c |  2 +-
+ drivers/gpu/drm/vc4/vc4_drv.h  |  5 ++---
+ drivers/gpu/drm/vc4/vc4_hvs.c  | 10 +++++-----
+ drivers/gpu/drm/vc4/vc4_txp.c  |  2 +-
+ 4 files changed, 9 insertions(+), 10 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -646,7 +646,7 @@ static int vc4_crtc_atomic_check(struct
+ 	struct drm_connector_state *conn_state;
+ 	int ret, i;
+ 
+-	ret = vc4_hvs_atomic_check(crtc, crtc_state);
++	ret = vc4_hvs_atomic_check(crtc, state);
+ 	if (ret)
+ 		return ret;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -924,11 +924,10 @@ void vc4_irq_reset(struct drm_device *de
+ extern struct platform_driver vc4_hvs_driver;
+ void vc4_hvs_stop_channel(struct drm_device *dev, unsigned int output);
+ int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output);
+-int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
++int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state);
+ void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state);
+ void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state);
+-void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
+-			  struct drm_atomic_state *state);
++void vc4_hvs_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *state);
+ void vc4_hvs_dump_state(struct drm_device *dev);
+ void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel);
+ void vc4_hvs_mask_underrun(struct drm_device *dev, int channel);
+--- a/drivers/gpu/drm/vc4/vc4_hvs.c
++++ b/drivers/gpu/drm/vc4/vc4_hvs.c
+@@ -365,10 +365,10 @@ void vc4_hvs_stop_channel(struct drm_dev
+ 		     SCALER_DISPSTATX_EMPTY);
+ }
+ 
+-int vc4_hvs_atomic_check(struct drm_crtc *crtc,
+-			 struct drm_crtc_state *state)
++int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state)
+ {
+-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
++	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
++	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	struct drm_device *dev = crtc->dev;
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+ 	struct drm_plane *plane;
+@@ -380,10 +380,10 @@ int vc4_hvs_atomic_check(struct drm_crtc
+ 	/* The pixelvalve can only feed one encoder (and encoders are
+ 	 * 1:1 with connectors.)
+ 	 */
+-	if (hweight32(state->connector_mask) > 1)
++	if (hweight32(crtc_state->connector_mask) > 1)
+ 		return -EINVAL;
+ 
+-	drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, state)
++	drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state)
+ 		dlist_count += vc4_plane_dlist_size(plane_state);
+ 
+ 	dlist_count++; /* Account for SCALER_CTL0_END. */
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -393,7 +393,7 @@ static int vc4_txp_atomic_check(struct d
+ 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	int ret;
+ 
+-	ret = vc4_hvs_atomic_check(crtc, crtc_state);
++	ret = vc4_hvs_atomic_check(crtc, state);
+ 	if (ret)
+ 		return ret;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0686-drm-Use-the-state-pointer-directly-in-atomic_check.patch b/target/linux/bcm27xx/patches-5.10/950-0686-drm-Use-the-state-pointer-directly-in-atomic_check.patch
new file mode 100644
index 0000000000..2d16e5a2f7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0686-drm-Use-the-state-pointer-directly-in-atomic_check.patch
@@ -0,0 +1,136 @@
+From 1a941929a4163a147764711f6bfe2ad9f3614abb Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Mon, 2 Nov 2020 14:38:34 +0100
+Subject: [PATCH] drm: Use the state pointer directly in atomic_check
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Now that atomic_check takes the global atomic state as a parameter, we
+don't need to go through the pointer in the CRTC state.
+
+This was done using the following coccinelle script:
+
+@ crtc_atomic_func @
+identifier helpers;
+identifier func;
+@@
+
+static struct drm_crtc_helper_funcs helpers = {
+	...,
+	.atomic_check = func,
+	...,
+};
+
+@@
+identifier crtc_atomic_func.func;
+identifier crtc, state;
+@@
+
+  func(struct drm_crtc *crtc, struct drm_atomic_state *state) {
+  ...
+- struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
+  ... when != crtc_state
+- crtc_state->state
++ state
+  ...
+ }
+
+@@
+struct drm_crtc_state *crtc_state;
+identifier crtc_atomic_func.func;
+identifier crtc, state;
+@@
+
+  func(struct drm_crtc *crtc, struct drm_atomic_state *state) {
+  ...
+- crtc_state->state
++ state
+  ...
+ }
+
+Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201102133834.1176740-3-maxime@cerno.tech
+---
+ drivers/gpu/drm/drm_simple_kms_helper.c | 2 +-
+ drivers/gpu/drm/mxsfb/mxsfb_kms.c       | 2 +-
+ drivers/gpu/drm/omapdrm/omap_crtc.c     | 2 +-
+ drivers/gpu/drm/tilcdc/tilcdc_crtc.c    | 6 +++---
+ drivers/gpu/drm/vc4/vc4_crtc.c          | 2 +-
+ drivers/gpu/drm/xlnx/zynqmp_disp.c      | 4 +---
+ 6 files changed, 8 insertions(+), 10 deletions(-)
+
+--- a/drivers/gpu/drm/drm_simple_kms_helper.c
++++ b/drivers/gpu/drm/drm_simple_kms_helper.c
+@@ -97,7 +97,7 @@ static int drm_simple_kms_crtc_check(str
+ 	if (has_primary != crtc_state->enable)
+ 		return -EINVAL;
+ 
+-	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
++	return drm_atomic_add_affected_planes(state, crtc);
+ }
+ 
+ static void drm_simple_kms_crtc_enable(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
++++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+@@ -282,7 +282,7 @@ static int mxsfb_crtc_atomic_check(struc
+ 		return -EINVAL;
+ 
+ 	/* TODO: Is this needed ? */
+-	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
++	return drm_atomic_add_affected_planes(state, crtc);
+ }
+ 
+ static void mxsfb_crtc_atomic_flush(struct drm_crtc *crtc,
+--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
++++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
+@@ -583,7 +583,7 @@ static int omap_crtc_atomic_check(struct
+ 			return -EINVAL;
+ 	}
+ 
+-	pri_state = drm_atomic_get_new_plane_state(crtc_state->state,
++	pri_state = drm_atomic_get_new_plane_state(state,
+ 						   crtc->primary);
+ 	if (pri_state) {
+ 		struct omap_crtc_state *omap_crtc_state =
+--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
++++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+@@ -677,9 +677,9 @@ static int tilcdc_crtc_atomic_check(stru
+ 	if (!crtc_state->active)
+ 		return 0;
+ 
+-	if (crtc_state->state->planes[0].ptr != crtc->primary ||
+-	    crtc_state->state->planes[0].state == NULL ||
+-	    crtc_state->state->planes[0].state->crtc != crtc) {
++	if (state->planes[0].ptr != crtc->primary ||
++	    state->planes[0].state == NULL ||
++	    state->planes[0].state->crtc != crtc) {
+ 		dev_dbg(crtc->dev->dev, "CRTC primary plane must be present");
+ 		return -EINVAL;
+ 	}
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -650,7 +650,7 @@ static int vc4_crtc_atomic_check(struct
+ 	if (ret)
+ 		return ret;
+ 
+-	for_each_new_connector_in_state(crtc_state->state, conn, conn_state,
++	for_each_new_connector_in_state(state, conn, conn_state,
+ 					i) {
+ 		if (conn_state->crtc != crtc)
+ 			continue;
+--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
++++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
+@@ -1507,9 +1507,7 @@ zynqmp_disp_crtc_atomic_disable(struct d
+ static int zynqmp_disp_crtc_atomic_check(struct drm_crtc *crtc,
+ 					 struct drm_atomic_state *state)
+ {
+-	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+-									  crtc);
+-	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
++	return drm_atomic_add_affected_planes(state, crtc);
+ }
+ 
+ static void
diff --git a/target/linux/bcm27xx/patches-5.10/950-0687-drm-vc4-Remove-unnecessary-drm_plane_cleanup-wrapper.patch b/target/linux/bcm27xx/patches-5.10/950-0687-drm-vc4-Remove-unnecessary-drm_plane_cleanup-wrapper.patch
new file mode 100644
index 0000000000..c5c3bab555
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0687-drm-vc4-Remove-unnecessary-drm_plane_cleanup-wrapper.patch
@@ -0,0 +1,39 @@
+From c7b252e6121b8c72d0e0540478658485eaeebe86 Mon Sep 17 00:00:00 2001
+From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+Date: Wed, 17 Jan 2018 23:15:18 +0200
+Subject: [PATCH] drm: vc4: Remove unnecessary drm_plane_cleanup()
+ wrapper
+
+Use the drm_plane_cleanup() function directly as the drm_plane_funcs
+.destroy() handler without creating an unnecessary wrapper around it.
+
+Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+Acked-by: Maxime Ripard <mripard@kernel.org>
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 7 +------
+ 1 file changed, 1 insertion(+), 6 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -1363,11 +1363,6 @@ static const struct drm_plane_helper_fun
+ 	.atomic_async_update = vc4_plane_atomic_async_update,
+ };
+ 
+-static void vc4_plane_destroy(struct drm_plane *plane)
+-{
+-	drm_plane_cleanup(plane);
+-}
+-
+ static bool vc4_format_mod_supported(struct drm_plane *plane,
+ 				     uint32_t format,
+ 				     uint64_t modifier)
+@@ -1425,7 +1420,7 @@ static bool vc4_format_mod_supported(str
+ static const struct drm_plane_funcs vc4_plane_funcs = {
+ 	.update_plane = drm_atomic_helper_update_plane,
+ 	.disable_plane = drm_atomic_helper_disable_plane,
+-	.destroy = vc4_plane_destroy,
++	.destroy = drm_plane_cleanup,
+ 	.set_property = NULL,
+ 	.reset = vc4_plane_reset,
+ 	.atomic_duplicate_state = vc4_plane_duplicate_state,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0688-drm-vc4-plane-Remove-redundant-assignment.patch b/target/linux/bcm27xx/patches-5.10/950-0688-drm-vc4-plane-Remove-redundant-assignment.patch
new file mode 100644
index 0000000000..b22a084a8f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0688-drm-vc4-plane-Remove-redundant-assignment.patch
@@ -0,0 +1,26 @@
+From 9d766c97656ba1a8729e434ca6cd9b1e1172ee1f Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Thu, 18 Mar 2021 17:13:27 +0100
+Subject: [PATCH] drm/vc4: plane: Remove redundant assignment
+
+The vc4_plane_atomic_async_update function assigns twice in a row the
+src_h field in the drm_plane_state structure to the same value. Remove
+the second one.
+
+Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210318161328.1471556-2-maxime@cerno.tech
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -1226,7 +1226,6 @@ static void vc4_plane_atomic_async_updat
+ 	plane->state->src_y = state->src_y;
+ 	plane->state->src_w = state->src_w;
+ 	plane->state->src_h = state->src_h;
+-	plane->state->src_h = state->src_h;
+ 	plane->state->alpha = state->alpha;
+ 	plane->state->pixel_blend_mode = state->pixel_blend_mode;
+ 	plane->state->rotation = state->rotation;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0689-drm-automatic-legacy-gamma-support.patch b/target/linux/bcm27xx/patches-5.10/950-0689-drm-automatic-legacy-gamma-support.patch
new file mode 100644
index 0000000000..c6f9bf19d3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0689-drm-automatic-legacy-gamma-support.patch
@@ -0,0 +1,458 @@
+From 88dea782ac45343b039ee1b6ee15b55e63a5f835 Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@ti.com>
+Date: Fri, 11 Dec 2020 13:42:36 +0200
+Subject: [PATCH] drm: automatic legacy gamma support
+
+To support legacy gamma ioctls the drivers need to set
+drm_crtc_funcs.gamma_set either to a custom implementation or to
+drm_atomic_helper_legacy_gamma_set. Most of the atomic drivers do the
+latter.
+
+We can simplify this by making the core handle it automatically.
+
+Move the drm_atomic_helper_legacy_gamma_set() functionality into
+drm_color_mgmt.c to make drm_mode_gamma_set_ioctl() use
+drm_crtc_funcs.gamma_set if set or GAMMA_LUT property if not.
+
+Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
+Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201211114237.213288-2-tomi.valkeinen@ti.com
+---
+ .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   1 -
+ .../gpu/drm/arm/display/komeda/komeda_crtc.c  |   1 -
+ drivers/gpu/drm/arm/malidp_crtc.c             |   1 -
+ drivers/gpu/drm/armada/armada_crtc.c          |   1 -
+ drivers/gpu/drm/ast/ast_mode.c                |   1 -
+ .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c    |   1 -
+ drivers/gpu/drm/drm_atomic_helper.c           |  70 -----------
+ drivers/gpu/drm/drm_color_mgmt.c              | 111 ++++++++++++++++--
+ drivers/gpu/drm/i915/display/intel_display.c  |   1 -
+ drivers/gpu/drm/ingenic/ingenic-drm-drv.c     |   2 -
+ drivers/gpu/drm/mediatek/mtk_drm_crtc.c       |   1 -
+ drivers/gpu/drm/nouveau/dispnv50/head.c       |   2 -
+ drivers/gpu/drm/omapdrm/omap_crtc.c           |   1 -
+ drivers/gpu/drm/rcar-du/rcar_du_crtc.c        |   1 -
+ drivers/gpu/drm/rockchip/rockchip_drm_vop.c   |   1 -
+ drivers/gpu/drm/stm/ltdc.c                    |   1 -
+ drivers/gpu/drm/vc4/vc4_crtc.c                |   1 -
+ drivers/gpu/drm/vc4/vc4_txp.c                 |   1 -
+ include/drm/drm_atomic_helper.h               |   4 -
+ 19 files changed, 102 insertions(+), 101 deletions(-)
+
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -4988,7 +4988,6 @@ static void dm_disable_vblank(struct drm
+ static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
+ 	.reset = dm_crtc_reset_state,
+ 	.destroy = amdgpu_dm_crtc_destroy,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.page_flip = drm_atomic_helper_page_flip,
+ 	.atomic_duplicate_state = dm_crtc_duplicate_state,
+--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
++++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+@@ -548,7 +548,6 @@ static void komeda_crtc_vblank_disable(s
+ }
+ 
+ static const struct drm_crtc_funcs komeda_crtc_funcs = {
+-	.gamma_set		= drm_atomic_helper_legacy_gamma_set,
+ 	.destroy		= drm_crtc_cleanup,
+ 	.set_config		= drm_atomic_helper_set_config,
+ 	.page_flip		= drm_atomic_helper_page_flip,
+--- a/drivers/gpu/drm/arm/malidp_crtc.c
++++ b/drivers/gpu/drm/arm/malidp_crtc.c
+@@ -510,7 +510,6 @@ static void malidp_crtc_disable_vblank(s
+ }
+ 
+ static const struct drm_crtc_funcs malidp_crtc_funcs = {
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.destroy = drm_crtc_cleanup,
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.page_flip = drm_atomic_helper_page_flip,
+--- a/drivers/gpu/drm/armada/armada_crtc.c
++++ b/drivers/gpu/drm/armada/armada_crtc.c
+@@ -816,7 +816,6 @@ static const struct drm_crtc_funcs armad
+ 	.cursor_set	= armada_drm_crtc_cursor_set,
+ 	.cursor_move	= armada_drm_crtc_cursor_move,
+ 	.destroy	= armada_drm_crtc_destroy,
+-	.gamma_set	= drm_atomic_helper_legacy_gamma_set,
+ 	.set_config	= drm_atomic_helper_set_config,
+ 	.page_flip	= drm_atomic_helper_page_flip,
+ 	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+--- a/drivers/gpu/drm/ast/ast_mode.c
++++ b/drivers/gpu/drm/ast/ast_mode.c
+@@ -898,7 +898,6 @@ static void ast_crtc_atomic_destroy_stat
+ 
+ static const struct drm_crtc_funcs ast_crtc_funcs = {
+ 	.reset = ast_crtc_reset,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.destroy = drm_crtc_cleanup,
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.page_flip = drm_atomic_helper_page_flip,
+--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
++++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+@@ -473,7 +473,6 @@ static const struct drm_crtc_funcs atmel
+ 	.atomic_destroy_state = atmel_hlcdc_crtc_destroy_state,
+ 	.enable_vblank = atmel_hlcdc_crtc_enable_vblank,
+ 	.disable_vblank = atmel_hlcdc_crtc_disable_vblank,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ };
+ 
+ int atmel_hlcdc_crtc_create(struct drm_device *dev)
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -3500,76 +3500,6 @@ fail:
+ EXPORT_SYMBOL(drm_atomic_helper_page_flip_target);
+ 
+ /**
+- * drm_atomic_helper_legacy_gamma_set - set the legacy gamma correction table
+- * @crtc: CRTC object
+- * @red: red correction table
+- * @green: green correction table
+- * @blue: green correction table
+- * @size: size of the tables
+- * @ctx: lock acquire context
+- *
+- * Implements support for legacy gamma correction table for drivers
+- * that support color management through the DEGAMMA_LUT/GAMMA_LUT
+- * properties. See drm_crtc_enable_color_mgmt() and the containing chapter for
+- * how the atomic color management and gamma tables work.
+- */
+-int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc,
+-				       u16 *red, u16 *green, u16 *blue,
+-				       uint32_t size,
+-				       struct drm_modeset_acquire_ctx *ctx)
+-{
+-	struct drm_device *dev = crtc->dev;
+-	struct drm_atomic_state *state;
+-	struct drm_crtc_state *crtc_state;
+-	struct drm_property_blob *blob = NULL;
+-	struct drm_color_lut *blob_data;
+-	int i, ret = 0;
+-	bool replaced;
+-
+-	state = drm_atomic_state_alloc(crtc->dev);
+-	if (!state)
+-		return -ENOMEM;
+-
+-	blob = drm_property_create_blob(dev,
+-					sizeof(struct drm_color_lut) * size,
+-					NULL);
+-	if (IS_ERR(blob)) {
+-		ret = PTR_ERR(blob);
+-		blob = NULL;
+-		goto fail;
+-	}
+-
+-	/* Prepare GAMMA_LUT with the legacy values. */
+-	blob_data = blob->data;
+-	for (i = 0; i < size; i++) {
+-		blob_data[i].red = red[i];
+-		blob_data[i].green = green[i];
+-		blob_data[i].blue = blue[i];
+-	}
+-
+-	state->acquire_ctx = ctx;
+-	crtc_state = drm_atomic_get_crtc_state(state, crtc);
+-	if (IS_ERR(crtc_state)) {
+-		ret = PTR_ERR(crtc_state);
+-		goto fail;
+-	}
+-
+-	/* Reset DEGAMMA_LUT and CTM properties. */
+-	replaced  = drm_property_replace_blob(&crtc_state->degamma_lut, NULL);
+-	replaced |= drm_property_replace_blob(&crtc_state->ctm, NULL);
+-	replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, blob);
+-	crtc_state->color_mgmt_changed |= replaced;
+-
+-	ret = drm_atomic_commit(state);
+-
+-fail:
+-	drm_atomic_state_put(state);
+-	drm_property_blob_put(blob);
+-	return ret;
+-}
+-EXPORT_SYMBOL(drm_atomic_helper_legacy_gamma_set);
+-
+-/**
+  * drm_atomic_helper_bridge_propagate_bus_fmt() - Propagate output format to
+  *						  the input end of a bridge
+  * @bridge: bridge control structure
+--- a/drivers/gpu/drm/drm_color_mgmt.c
++++ b/drivers/gpu/drm/drm_color_mgmt.c
+@@ -22,6 +22,7 @@
+ 
+ #include <linux/uaccess.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_color_mgmt.h>
+ #include <drm/drm_crtc.h>
+ #include <drm/drm_device.h>
+@@ -89,9 +90,8 @@
+  *	modes) appropriately.
+  *
+  * There is also support for a legacy gamma table, which is set up by calling
+- * drm_mode_crtc_set_gamma_size(). Drivers which support both should use
+- * drm_atomic_helper_legacy_gamma_set() to alias the legacy gamma ramp with the
+- * "GAMMA_LUT" property above.
++ * drm_mode_crtc_set_gamma_size(). The DRM core will then alias the legacy gamma
++ * ramp with "GAMMA_LUT".
+  *
+  * Support for different non RGB color encodings is controlled through
+  * &drm_plane specific COLOR_ENCODING and COLOR_RANGE properties. They
+@@ -156,9 +156,6 @@ EXPORT_SYMBOL(drm_color_ctm_s31_32_to_qm
+  * optional. The gamma and degamma properties are only attached if
+  * their size is not 0 and ctm_property is only attached if has_ctm is
+  * true.
+- *
+- * Drivers should use drm_atomic_helper_legacy_gamma_set() to implement the
+- * legacy &drm_crtc_funcs.gamma_set callback.
+  */
+ void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
+ 				uint degamma_lut_size,
+@@ -232,6 +229,102 @@ int drm_mode_crtc_set_gamma_size(struct
+ EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+ 
+ /**
++ * drm_crtc_supports_legacy_gamma - does the crtc support legacy gamma correction table
++ * @crtc: CRTC object
++ *
++ * Returns true/false if the given crtc supports setting the legacy gamma
++ * correction table.
++ */
++static bool drm_crtc_supports_legacy_gamma(struct drm_crtc *crtc)
++{
++	u32 gamma_id = crtc->dev->mode_config.gamma_lut_property->base.id;
++
++	if (!crtc->gamma_size)
++		return false;
++
++	if (crtc->funcs->gamma_set)
++		return true;
++
++	return !!drm_mode_obj_find_prop_id(&crtc->base, gamma_id);
++}
++
++/**
++ * drm_crtc_legacy_gamma_set - set the legacy gamma correction table
++ * @crtc: CRTC object
++ * @red: red correction table
++ * @green: green correction table
++ * @blue: green correction table
++ * @size: size of the tables
++ * @ctx: lock acquire context
++ *
++ * Implements support for legacy gamma correction table for drivers
++ * that have set drm_crtc_funcs.gamma_set or that support color management
++ * through the DEGAMMA_LUT/GAMMA_LUT properties. See
++ * drm_crtc_enable_color_mgmt() and the containing chapter for
++ * how the atomic color management and gamma tables work.
++ *
++ * This function sets the gamma using drm_crtc_funcs.gamma_set if set, or
++ * alternatively using crtc color management properties.
++ */
++static int drm_crtc_legacy_gamma_set(struct drm_crtc *crtc,
++				     u16 *red, u16 *green, u16 *blue,
++				     u32 size,
++				     struct drm_modeset_acquire_ctx *ctx)
++{
++	struct drm_device *dev = crtc->dev;
++	struct drm_atomic_state *state;
++	struct drm_crtc_state *crtc_state;
++	struct drm_property_blob *blob;
++	struct drm_color_lut *blob_data;
++	int i, ret = 0;
++	bool replaced;
++
++	if (crtc->funcs->gamma_set)
++		return crtc->funcs->gamma_set(crtc, red, green, blue, size, ctx);
++
++	state = drm_atomic_state_alloc(crtc->dev);
++	if (!state)
++		return -ENOMEM;
++
++	blob = drm_property_create_blob(dev,
++					sizeof(struct drm_color_lut) * size,
++					NULL);
++	if (IS_ERR(blob)) {
++		ret = PTR_ERR(blob);
++		blob = NULL;
++		goto fail;
++	}
++
++	/* Prepare GAMMA_LUT with the legacy values. */
++	blob_data = blob->data;
++	for (i = 0; i < size; i++) {
++		blob_data[i].red = red[i];
++		blob_data[i].green = green[i];
++		blob_data[i].blue = blue[i];
++	}
++
++	state->acquire_ctx = ctx;
++	crtc_state = drm_atomic_get_crtc_state(state, crtc);
++	if (IS_ERR(crtc_state)) {
++		ret = PTR_ERR(crtc_state);
++		goto fail;
++	}
++
++	/* Set GAMMA_LUT and reset DEGAMMA_LUT and CTM */
++	replaced = drm_property_replace_blob(&crtc_state->degamma_lut, NULL);
++	replaced |= drm_property_replace_blob(&crtc_state->ctm, NULL);
++	replaced |= drm_property_replace_blob(&crtc_state->gamma_lut, blob);
++	crtc_state->color_mgmt_changed |= replaced;
++
++	ret = drm_atomic_commit(state);
++
++fail:
++	drm_atomic_state_put(state);
++	drm_property_blob_put(blob);
++	return ret;
++}
++
++/**
+  * drm_mode_gamma_set_ioctl - set the gamma table
+  * @dev: DRM device
+  * @data: ioctl data
+@@ -262,7 +355,7 @@ int drm_mode_gamma_set_ioctl(struct drm_
+ 	if (!crtc)
+ 		return -ENOENT;
+ 
+-	if (crtc->funcs->gamma_set == NULL)
++	if (!drm_crtc_supports_legacy_gamma(crtc))
+ 		return -ENOSYS;
+ 
+ 	/* memcpy into gamma store */
+@@ -290,8 +383,8 @@ int drm_mode_gamma_set_ioctl(struct drm_
+ 		goto out;
+ 	}
+ 
+-	ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base,
+-				     crtc->gamma_size, &ctx);
++	ret = drm_crtc_legacy_gamma_set(crtc, r_base, g_base, b_base,
++					crtc->gamma_size, &ctx);
+ 
+ out:
+ 	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
+--- a/drivers/gpu/drm/i915/display/intel_display.c
++++ b/drivers/gpu/drm/i915/display/intel_display.c
+@@ -16562,7 +16562,6 @@ fail:
+ }
+ 
+ #define INTEL_CRTC_FUNCS \
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set, \
+ 	.set_config = drm_atomic_helper_set_config, \
+ 	.destroy = intel_crtc_destroy, \
+ 	.page_flip = drm_atomic_helper_page_flip, \
+--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
++++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+@@ -647,8 +647,6 @@ static const struct drm_crtc_funcs ingen
+ 
+ 	.enable_vblank		= ingenic_drm_enable_vblank,
+ 	.disable_vblank		= ingenic_drm_disable_vblank,
+-
+-	.gamma_set		= drm_atomic_helper_legacy_gamma_set,
+ };
+ 
+ static const struct drm_plane_helper_funcs ingenic_drm_plane_helper_funcs = {
+--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
++++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+@@ -614,7 +614,6 @@ static const struct drm_crtc_funcs mtk_c
+ 	.reset			= mtk_drm_crtc_reset,
+ 	.atomic_duplicate_state	= mtk_drm_crtc_duplicate_state,
+ 	.atomic_destroy_state	= mtk_drm_crtc_destroy_state,
+-	.gamma_set		= drm_atomic_helper_legacy_gamma_set,
+ 	.enable_vblank		= mtk_drm_crtc_enable_vblank,
+ 	.disable_vblank		= mtk_drm_crtc_disable_vblank,
+ };
+--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
++++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
+@@ -501,7 +501,6 @@ nv50_head_destroy(struct drm_crtc *crtc)
+ static const struct drm_crtc_funcs
+ nv50_head_func = {
+ 	.reset = nv50_head_reset,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.destroy = nv50_head_destroy,
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.page_flip = drm_atomic_helper_page_flip,
+@@ -516,7 +515,6 @@ nv50_head_func = {
+ static const struct drm_crtc_funcs
+ nvd9_head_func = {
+ 	.reset = nv50_head_reset,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.destroy = nv50_head_destroy,
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.page_flip = drm_atomic_helper_page_flip,
+--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
++++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
+@@ -741,7 +741,6 @@ static const struct drm_crtc_funcs omap_
+ 	.set_config = drm_atomic_helper_set_config,
+ 	.destroy = omap_crtc_destroy,
+ 	.page_flip = drm_atomic_helper_page_flip,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.atomic_duplicate_state = omap_crtc_duplicate_state,
+ 	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
+ 	.atomic_set_property = omap_crtc_atomic_set_property,
+--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
++++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+@@ -1138,7 +1138,6 @@ static const struct drm_crtc_funcs crtc_
+ 	.set_crc_source = rcar_du_crtc_set_crc_source,
+ 	.verify_crc_source = rcar_du_crtc_verify_crc_source,
+ 	.get_crc_sources = rcar_du_crtc_get_crc_sources,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ };
+ 
+ /* -----------------------------------------------------------------------------
+--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
++++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+@@ -1642,7 +1642,6 @@ static const struct drm_crtc_funcs vop_c
+ 	.disable_vblank = vop_crtc_disable_vblank,
+ 	.set_crc_source = vop_crtc_set_crc_source,
+ 	.verify_crc_source = vop_crtc_verify_crc_source,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ };
+ 
+ static void vop_fb_unref_worker(struct drm_flip_work *work, void *val)
+--- a/drivers/gpu/drm/stm/ltdc.c
++++ b/drivers/gpu/drm/stm/ltdc.c
+@@ -742,7 +742,6 @@ static const struct drm_crtc_funcs ltdc_
+ 	.enable_vblank = ltdc_crtc_enable_vblank,
+ 	.disable_vblank = ltdc_crtc_disable_vblank,
+ 	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ };
+ 
+ /*
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -937,7 +937,6 @@ static const struct drm_crtc_funcs vc4_c
+ 	.reset = vc4_crtc_reset,
+ 	.atomic_duplicate_state = vc4_crtc_duplicate_state,
+ 	.atomic_destroy_state = vc4_crtc_destroy_state,
+-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
+ 	.enable_vblank = vc4_enable_vblank,
+ 	.disable_vblank = vc4_disable_vblank,
+ 	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -380,7 +380,6 @@ static const struct drm_crtc_funcs vc4_t
+ 	.reset			= vc4_crtc_reset,
+ 	.atomic_duplicate_state	= vc4_crtc_duplicate_state,
+ 	.atomic_destroy_state	= vc4_crtc_destroy_state,
+-	.gamma_set		= drm_atomic_helper_legacy_gamma_set,
+ 	.enable_vblank		= vc4_txp_enable_vblank,
+ 	.disable_vblank		= vc4_txp_disable_vblank,
+ };
+--- a/include/drm/drm_atomic_helper.h
++++ b/include/drm/drm_atomic_helper.h
+@@ -147,10 +147,6 @@ int drm_atomic_helper_page_flip_target(
+ 				uint32_t flags,
+ 				uint32_t target,
+ 				struct drm_modeset_acquire_ctx *ctx);
+-int drm_atomic_helper_legacy_gamma_set(struct drm_crtc *crtc,
+-				       u16 *red, u16 *green, u16 *blue,
+-				       uint32_t size,
+-				       struct drm_modeset_acquire_ctx *ctx);
+ 
+ /**
+  * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
diff --git a/target/linux/bcm27xx/patches-5.10/950-0690-drm-Pass-the-full-state-to-connectors-atomic-functio.patch b/target/linux/bcm27xx/patches-5.10/950-0690-drm-Pass-the-full-state-to-connectors-atomic-functio.patch
new file mode 100644
index 0000000000..8d62659ff0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0690-drm-Pass-the-full-state-to-connectors-atomic-functio.patch
@@ -0,0 +1,371 @@
+From 05d10aebe62239b014098c8e517dd96848f9a495 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Wed, 18 Nov 2020 10:47:58 +0100
+Subject: [PATCH] drm: Pass the full state to connectors atomic
+ functions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The current atomic helpers have either their object state being passed as
+an argument or the full atomic state.
+
+The former is the pattern that was done at first, before switching to the
+latter for new hooks or when it was needed.
+
+Now that the CRTCs have been converted, let's move forward with the
+connectors to provide a consistent interface.
+
+The conversion was done using the coccinelle script below, and built tested
+on all the drivers.
+
+@@
+identifier connector, connector_state;
+@@
+
+ struct drm_connector_helper_funcs {
+	...
+	struct drm_encoder* (*atomic_best_encoder)(struct drm_connector *connector,
+-						   struct drm_connector_state *connector_state);
++						   struct drm_atomic_state *state);
+	...
+}
+
+@@
+identifier connector, connector_state;
+@@
+
+ struct drm_connector_helper_funcs {
+	...
+	void (*atomic_commit)(struct drm_connector *connector,
+-			      struct drm_connector_state *connector_state);
++			      struct drm_atomic_state *state);
+	...
+}
+
+@@
+struct drm_connector_helper_funcs *FUNCS;
+identifier state;
+identifier connector, connector_state;
+identifier f;
+@@
+
+ f(..., struct drm_atomic_state *state, ...)
+ {
+	<+...
+-	FUNCS->atomic_commit(connector, connector_state);
++	FUNCS->atomic_commit(connector, state);
+	...+>
+ }
+
+@@
+struct drm_connector_helper_funcs *FUNCS;
+identifier state;
+identifier connector, connector_state;
+identifier var, f;
+@@
+
+ f(struct drm_atomic_state *state, ...)
+ {
+	<+...
+-	var = FUNCS->atomic_best_encoder(connector, connector_state);
++	var = FUNCS->atomic_best_encoder(connector, state);
+	...+>
+ }
+
+@ connector_atomic_func @
+identifier helpers;
+identifier func;
+@@
+
+(
+static struct drm_connector_helper_funcs helpers = {
+	...,
+	.atomic_best_encoder = func,
+	...,
+};
+|
+static struct drm_connector_helper_funcs helpers = {
+	...,
+	.atomic_commit = func,
+	...,
+};
+)
+
+@@
+identifier connector_atomic_func.func;
+identifier connector;
+symbol state;
+@@
+
+ func(struct drm_connector *connector,
+-      struct drm_connector_state *state
++      struct drm_connector_state *connector_state
+      )
+ {
+	...
+-	state
++	connector_state
+ 	...
+ }
+
+@ ignores_state @
+identifier connector_atomic_func.func;
+identifier connector, connector_state;
+@@
+
+ func(struct drm_connector *connector,
+      struct drm_connector_state *connector_state)
+{
+	... when != connector_state
+}
+
+@ adds_state depends on connector_atomic_func && !ignores_state @
+identifier connector_atomic_func.func;
+identifier connector, connector_state;
+@@
+
+ func(struct drm_connector *connector, struct drm_connector_state *connector_state)
+ {
++	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state, connector);
+	...
+ }
+
+@ depends on connector_atomic_func @
+identifier connector_atomic_func.func;
+identifier connector_state;
+identifier connector;
+@@
+
+ func(struct drm_connector *connector,
+-     struct drm_connector_state *connector_state
++     struct drm_atomic_state *state
+	   )
+ { ... }
+
+@ include depends on adds_state @
+@@
+
+ #include <drm/drm_atomic.h>
+
+@ no_include depends on !include && adds_state @
+@@
+
++ #include <drm/drm_atomic.h>
+  #include <drm/...>
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Reviewed-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
+Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+Cc: Leo Li <sunpeng.li@amd.com>
+Cc: Alex Deucher <alexander.deucher@amd.com>
+Cc: "Christian König" <christian.koenig@amd.com>
+Cc: Jani Nikula <jani.nikula@linux.intel.com>
+Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
+Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
+Cc: Ben Skeggs <bskeggs@redhat.com>
+Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
+Cc: Melissa Wen <melissa.srw@gmail.com>
+Cc: Haneen Mohammed <hamohammed.sa@gmail.com>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201118094758.506730-1-maxime@cerno.tech
+---
+ .../drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c |  5 ++++-
+ drivers/gpu/drm/drm_atomic_helper.c                 |  8 ++++----
+ drivers/gpu/drm/i915/display/intel_dp_mst.c         |  7 +++++--
+ drivers/gpu/drm/nouveau/dispnv50/disp.c             |  5 ++++-
+ drivers/gpu/drm/vc4/vc4_txp.c                       |  4 +++-
+ drivers/gpu/drm/vkms/vkms_writeback.c               |  8 ++++++--
+ include/drm/drm_modeset_helper_vtables.h            | 13 ++++++-------
+ 7 files changed, 32 insertions(+), 18 deletions(-)
+
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <linux/version.h>
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_dp_mst_helper.h>
+ #include <drm/drm_dp_helper.h>
+@@ -252,8 +253,10 @@ static int dm_dp_mst_get_modes(struct dr
+ 
+ static struct drm_encoder *
+ dm_mst_atomic_best_encoder(struct drm_connector *connector,
+-			   struct drm_connector_state *connector_state)
++			   struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state,
++											 connector);
+ 	struct drm_device *dev = connector->dev;
+ 	struct amdgpu_device *adev = drm_to_adev(dev);
+ 	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(connector_state->crtc);
+--- a/drivers/gpu/drm/drm_atomic_helper.c
++++ b/drivers/gpu/drm/drm_atomic_helper.c
+@@ -122,7 +122,8 @@ static int handle_conflicting_encoders(s
+ 			continue;
+ 
+ 		if (funcs->atomic_best_encoder)
+-			new_encoder = funcs->atomic_best_encoder(connector, new_conn_state);
++			new_encoder = funcs->atomic_best_encoder(connector,
++								 state);
+ 		else if (funcs->best_encoder)
+ 			new_encoder = funcs->best_encoder(connector);
+ 		else
+@@ -345,8 +346,7 @@ update_connector_routing(struct drm_atom
+ 	funcs = connector->helper_private;
+ 
+ 	if (funcs->atomic_best_encoder)
+-		new_encoder = funcs->atomic_best_encoder(connector,
+-							 new_connector_state);
++		new_encoder = funcs->atomic_best_encoder(connector, state);
+ 	else if (funcs->best_encoder)
+ 		new_encoder = funcs->best_encoder(connector);
+ 	else
+@@ -1318,7 +1318,7 @@ static void drm_atomic_helper_commit_wri
+ 
+ 		if (new_conn_state->writeback_job && new_conn_state->writeback_job->fb) {
+ 			WARN_ON(connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK);
+-			funcs->atomic_commit(connector, new_conn_state);
++			funcs->atomic_commit(connector, old_state);
+ 		}
+ 	}
+ }
+--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
++++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
+@@ -23,6 +23,7 @@
+  *
+  */
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_edid.h>
+ #include <drm/drm_probe_helper.h>
+@@ -708,11 +709,13 @@ intel_dp_mst_mode_valid_ctx(struct drm_c
+ }
+ 
+ static struct drm_encoder *intel_mst_atomic_best_encoder(struct drm_connector *connector,
+-							 struct drm_connector_state *state)
++							 struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state,
++											 connector);
+ 	struct intel_connector *intel_connector = to_intel_connector(connector);
+ 	struct intel_dp *intel_dp = intel_connector->mst_port;
+-	struct intel_crtc *crtc = to_intel_crtc(state->crtc);
++	struct intel_crtc *crtc = to_intel_crtc(connector_state->crtc);
+ 
+ 	return &intel_dp->mst_encoders[crtc->pipe]->base.base;
+ }
+--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
++++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
+@@ -32,6 +32,7 @@
+ #include <linux/hdmi.h>
+ #include <linux/component.h>
+ 
++#include <drm/drm_atomic.h>
+ #include <drm/drm_atomic_helper.h>
+ #include <drm/drm_dp_helper.h>
+ #include <drm/drm_edid.h>
+@@ -1161,8 +1162,10 @@ nv50_msto_new(struct drm_device *dev, st
+ 
+ static struct drm_encoder *
+ nv50_mstc_atomic_best_encoder(struct drm_connector *connector,
+-			      struct drm_connector_state *connector_state)
++			      struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state,
++											 connector);
+ 	struct nv50_mstc *mstc = nv50_mstc(connector);
+ 	struct drm_crtc *crtc = connector_state->crtc;
+ 
+--- a/drivers/gpu/drm/vc4/vc4_txp.c
++++ b/drivers/gpu/drm/vc4/vc4_txp.c
+@@ -273,8 +273,10 @@ static int vc4_txp_connector_atomic_chec
+ }
+ 
+ static void vc4_txp_connector_atomic_commit(struct drm_connector *conn,
+-					struct drm_connector_state *conn_state)
++					struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *conn_state = drm_atomic_get_new_connector_state(state,
++										    conn);
+ 	struct vc4_txp *txp = connector_to_vc4_txp(conn);
+ 	struct drm_gem_cma_object *gem;
+ 	struct drm_display_mode *mode;
+--- a/drivers/gpu/drm/vkms/vkms_writeback.c
++++ b/drivers/gpu/drm/vkms/vkms_writeback.c
+@@ -1,6 +1,8 @@
+ // SPDX-License-Identifier: GPL-2.0+
+ 
+ #include "vkms_drv.h"
++
++#include <drm/drm_atomic.h>
+ #include <drm/drm_fourcc.h>
+ #include <drm/drm_writeback.h>
+ #include <drm/drm_probe_helper.h>
+@@ -100,8 +102,10 @@ static void vkms_wb_cleanup_job(struct d
+ }
+ 
+ static void vkms_wb_atomic_commit(struct drm_connector *conn,
+-				  struct drm_connector_state *state)
++				  struct drm_atomic_state *state)
+ {
++	struct drm_connector_state *connector_state = drm_atomic_get_new_connector_state(state,
++											 conn);
+ 	struct vkms_device *vkmsdev = drm_device_to_vkms_device(conn->dev);
+ 	struct vkms_output *output = &vkmsdev->output;
+ 	struct drm_writeback_connector *wb_conn = &output->wb_connector;
+@@ -117,7 +121,7 @@ static void vkms_wb_atomic_commit(struct
+ 	crtc_state->active_writeback = conn_state->writeback_job->priv;
+ 	crtc_state->wb_pending = true;
+ 	spin_unlock_irq(&output->composer_lock);
+-	drm_writeback_queue_job(wb_conn, state);
++	drm_writeback_queue_job(wb_conn, connector_state);
+ }
+ 
+ static const struct drm_connector_helper_funcs vkms_wb_conn_helper_funcs = {
+--- a/include/drm/drm_modeset_helper_vtables.h
++++ b/include/drm/drm_modeset_helper_vtables.h
+@@ -1044,9 +1044,8 @@ struct drm_connector_helper_funcs {
+ 	 * NOTE:
+ 	 *
+ 	 * This function is called in the check phase of an atomic update. The
+-	 * driver is not allowed to change anything outside of the free-standing
+-	 * state objects passed-in or assembled in the overall &drm_atomic_state
+-	 * update tracking structure.
++	 * driver is not allowed to change anything outside of the
++	 * &drm_atomic_state update tracking structure passed in.
+ 	 *
+ 	 * RETURNS:
+ 	 *
+@@ -1056,7 +1055,7 @@ struct drm_connector_helper_funcs {
+ 	 * for this.
+ 	 */
+ 	struct drm_encoder *(*atomic_best_encoder)(struct drm_connector *connector,
+-						   struct drm_connector_state *connector_state);
++						   struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @atomic_check:
+@@ -1097,15 +1096,15 @@ struct drm_connector_helper_funcs {
+ 	 *
+ 	 * This hook is to be used by drivers implementing writeback connectors
+ 	 * that need a point when to commit the writeback job to the hardware.
+-	 * The writeback_job to commit is available in
+-	 * &drm_connector_state.writeback_job.
++	 * The writeback_job to commit is available in the new connector state,
++	 * in &drm_connector_state.writeback_job.
+ 	 *
+ 	 * This hook is optional.
+ 	 *
+ 	 * This callback is used by the atomic modeset helpers.
+ 	 */
+ 	void (*atomic_commit)(struct drm_connector *connector,
+-			      struct drm_connector_state *state);
++			      struct drm_atomic_state *state);
+ 
+ 	/**
+ 	 * @prepare_writeback_job:
diff --git a/target/linux/bcm27xx/patches-5.10/950-0691-drm-vc4-replace-idr_init-by-idr_init_base.patch b/target/linux/bcm27xx/patches-5.10/950-0691-drm-vc4-replace-idr_init-by-idr_init_base.patch
new file mode 100644
index 0000000000..2e9a8483a5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0691-drm-vc4-replace-idr_init-by-idr_init_base.patch
@@ -0,0 +1,32 @@
+From b19ef92e9e95765bab9b952aa781363fe2917254 Mon Sep 17 00:00:00 2001
+From: Deepak R Varma <mh12gx2825@gmail.com>
+Date: Fri, 6 Nov 2020 01:51:35 +0530
+Subject: [PATCH] drm/vc4: replace idr_init() by idr_init_base()
+
+idr_init() uses base 0 which is an invalid identifier for this driver.
+The idr_alloc for this driver uses VC4_PERFMONID_MIN as start value for
+ID range and it is #defined to 1. The new function idr_init_base allows
+IDR to set the ID lookup from base 1. This avoids all lookups that
+otherwise starts from 0 since 0 is always unused / available.
+
+References: commit 6ce711f27500 ("idr: Make 1-based IDRs more efficient")
+
+Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201105202135.GA145111@localhost
+---
+ drivers/gpu/drm/vc4/vc4_perfmon.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_perfmon.c
++++ b/drivers/gpu/drm/vc4/vc4_perfmon.c
+@@ -77,7 +77,7 @@ struct vc4_perfmon *vc4_perfmon_find(str
+ void vc4_perfmon_open_file(struct vc4_file *vc4file)
+ {
+ 	mutex_init(&vc4file->perfmon.lock);
+-	idr_init(&vc4file->perfmon.idr);
++	idr_init_base(&vc4file->perfmon.idr, VC4_PERFMONID_MIN);
+ }
+ 
+ static int vc4_perfmon_idr_del(int id, void *elem, void *data)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0692-drm-vc4-vc4_hdmi_regs-Mark-some-data-sets-as-__maybe.patch b/target/linux/bcm27xx/patches-5.10/950-0692-drm-vc4-vc4_hdmi_regs-Mark-some-data-sets-as-__maybe.patch
new file mode 100644
index 0000000000..bb6f742b48
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0692-drm-vc4-vc4_hdmi_regs-Mark-some-data-sets-as-__maybe.patch
@@ -0,0 +1,59 @@
+From f0f694e4624f63ea58b2bf3d1774cc86917f39c7 Mon Sep 17 00:00:00 2001
+From: Lee Jones <lee.jones@linaro.org>
+Date: Mon, 16 Nov 2020 17:41:07 +0000
+Subject: [PATCH] drm/vc4/vc4_hdmi_regs: Mark some data sets as
+ __maybe_unused
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The alternative is to move them into the source file that uses then,
+but they are large and intrusive, so that strategy is being avoided.
+
+Fixes the following W=1 kernel build warning(s):
+
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h:282:39: warning: ‘vc5_hdmi_hdmi1_fields’ defined but not used [-Wunused-const-variable=]
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h:206:39: warning: ‘vc5_hdmi_hdmi0_fields’ defined but not used [-Wunused-const-variable=]
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h:145:39: warning: ‘vc4_hdmi_fields’ defined but not used [-Wunused-const-variable=]
+
+Cc: Eric Anholt <eric@anholt.net>
+Cc: Maxime Ripard <mripard@kernel.org>
+Cc: David Airlie <airlied@linux.ie>
+Cc: Daniel Vetter <daniel@ffwll.ch>
+Cc: dri-devel@lists.freedesktop.org
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Link: https://patchwork.freedesktop.org/patch/msgid/20201116174112.1833368-38-lee.jones@linaro.org
+---
+ drivers/gpu/drm/vc4/vc4_hdmi_regs.h | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
++++ b/drivers/gpu/drm/vc4/vc4_hdmi_regs.h
+@@ -149,7 +149,7 @@ struct vc4_hdmi_register {
+ #define VC5_RAM_REG(reg, offset)	_VC4_REG(VC5_RAM, reg, offset)
+ #define VC5_RM_REG(reg, offset)		_VC4_REG(VC5_RM, reg, offset)
+ 
+-static const struct vc4_hdmi_register vc4_hdmi_fields[] = {
++static const struct vc4_hdmi_register __maybe_unused vc4_hdmi_fields[] = {
+ 	VC4_HD_REG(HDMI_M_CTL, 0x000c),
+ 	VC4_HD_REG(HDMI_MAI_CTL, 0x0014),
+ 	VC4_HD_REG(HDMI_MAI_THR, 0x0018),
+@@ -211,7 +211,7 @@ static const struct vc4_hdmi_register vc
+ 	VC4_HDMI_REG(HDMI_RAM_PACKET_START, 0x0400),
+ };
+ 
+-static const struct vc4_hdmi_register vc5_hdmi_hdmi0_fields[] = {
++static const struct vc4_hdmi_register __maybe_unused vc5_hdmi_hdmi0_fields[] = {
+ 	VC4_HD_REG(HDMI_DVP_CTL, 0x0000),
+ 	VC4_HD_REG(HDMI_MAI_CTL, 0x0010),
+ 	VC4_HD_REG(HDMI_MAI_THR, 0x0014),
+@@ -291,7 +291,7 @@ static const struct vc4_hdmi_register vc
+ 	VC5_CSC_REG(HDMI_CSC_34_33, 0x018),
+ };
+ 
+-static const struct vc4_hdmi_register vc5_hdmi_hdmi1_fields[] = {
++static const struct vc4_hdmi_register __maybe_unused vc5_hdmi_hdmi1_fields[] = {
+ 	VC4_HD_REG(HDMI_DVP_CTL, 0x0000),
+ 	VC4_HD_REG(HDMI_MAI_CTL, 0x0030),
+ 	VC4_HD_REG(HDMI_MAI_THR, 0x0034),
diff --git a/target/linux/bcm27xx/patches-5.10/950-0693-drm-vc4-remove-unneeded-variable-ret.patch b/target/linux/bcm27xx/patches-5.10/950-0693-drm-vc4-remove-unneeded-variable-ret.patch
new file mode 100644
index 0000000000..be7a81145c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0693-drm-vc4-remove-unneeded-variable-ret.patch
@@ -0,0 +1,35 @@
+From c0cfa3ce26baee0eb323481244e5a7f7a88db207 Mon Sep 17 00:00:00 2001
+From: Bernard Zhao <bernard@vivo.com>
+Date: Tue, 2 Feb 2021 04:23:38 -0800
+Subject: [PATCH] drm/vc4: remove unneeded variable: "ret"
+
+remove unneeded variable: "ret".
+
+Signed-off-by: Bernard Zhao <bernard@vivo.com>
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210202122338.15351-1-bernard@vivo.com
+(cherry picked from commit f0c5a89e534b43bfef8e7bf7baa5624cd84e1e18)
+Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
+---
+ drivers/gpu/drm/vc4/vc4_gem.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_gem.c
++++ b/drivers/gpu/drm/vc4/vc4_gem.c
+@@ -1026,7 +1026,6 @@ int vc4_queue_seqno_cb(struct drm_device
+ 		       void (*func)(struct vc4_seqno_cb *cb))
+ {
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+-	int ret = 0;
+ 	unsigned long irqflags;
+ 
+ 	cb->func = func;
+@@ -1041,7 +1040,7 @@ int vc4_queue_seqno_cb(struct drm_device
+ 	}
+ 	spin_unlock_irqrestore(&vc4->job_lock, irqflags);
+ 
+-	return ret;
++	return 0;
+ }
+ 
+ /* Scheduled when any job has been completed, this walks the list of
diff --git a/target/linux/bcm27xx/patches-5.10/950-0694-overlays-Add-overlay-for-cap1106-capacitive-touch-se.patch b/target/linux/bcm27xx/patches-5.10/950-0694-overlays-Add-overlay-for-cap1106-capacitive-touch-se.patch
new file mode 100644
index 0000000000..8f33dcd5e6
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0694-overlays-Add-overlay-for-cap1106-capacitive-touch-se.patch
@@ -0,0 +1,94 @@
+From 62ae8907efb221f232126726bf4df5c9da23a8b4 Mon Sep 17 00:00:00 2001
+From: Jesse Taube <Mr.Bossman075@gmail.com>
+Date: Thu, 8 Jul 2021 16:32:16 -0400
+Subject: [PATCH] overlays: Add overlay for cap1106 capacitive touch
+ sensor
+
+Signed-off-by: Jesse Taube  <mr.bossman075@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  6 +++
+ .../arm/boot/dts/overlays/cap1106-overlay.dts | 52 +++++++++++++++++++
+ 3 files changed, 59 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/cap1106-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -30,6 +30,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	audiosense-pi.dtbo \
+ 	audremap.dtbo \
+ 	balena-fin.dtbo \
++	cap1106.dtbo \
+ 	chipdip-i2s-master-dac.dtbo \
+ 	cma.dtbo \
+ 	dht11.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -622,6 +622,12 @@ Info:   This overlay is now deprecated -
+ Load:   <Deprecated>
+ 
+ 
++Name:   cap1106
++Info:   Enables the ability to use the cap1106 touch sensor as a keyboard
++Load:   dtoverlay=cap1106,<param>=<val>
++Params: int_pin                 GPIO pin for interrupt signal (default 23)
++
++
+ Name:   chipdip-i2s-master-dac
+ Info:   Configures Raspberry PI to work as I2S slave with BCLK=64Fs.
+ Load:   dtoverlay=chipdip-i2s-master-dac
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/cap1106-overlay.dts
+@@ -0,0 +1,52 @@
++// Overlay for cap1106 from  Microchip Semiconductor
++// add CONFIG_KEYBOARD_CAP11XX=y
++
++/dts-v1/;
++/plugin/;
++
++/ {
++        compatible = "brcm,bcm2835";
++        fragment@0 {
++                target = <&i2c1>;
++                __overlay__{
++                        status = "okay";
++                        cap1106: cap1106@28 {
++                                compatible = "microchip,cap1106";
++                                pinctrl-0 = <&cap1106_pins>;
++                                pinctrl-names = "default";
++                                interrupt-parent = <&gpio>;
++                                interrupts = <4 2>;
++                                reg = <0x28>;
++                                autorepeat;
++                                microchip,sensor-gain = <2>;
++
++                                linux,keycodes = <2>,           /* KEY_1 */
++                                                <3>,            /* KEY_2 */
++                                                <4>,            /* KEY_3 */
++                                                <5>,            /* KEY_4 */
++                                                <6>,            /* KEY_5 */
++                                                <7>;            /* KEY_6 */
++
++                                #address-cells = <1>;
++                                #size-cells = <0>;
++                                status = "okay";
++
++                        };
++                };
++        };
++        fragment@1 {
++                target = <&gpio>;
++                __overlay__ {
++                        cap1106_pins: cap1106_pins {
++                                brcm,pins = <4>;
++                                brcm,function = <0>; /* in */
++                                brcm,pull = <0>; /* none */
++                        };
++                };
++        };
++
++        __overrides__ {
++                int_pin = <&cap1106>, "interrupts:0",
++                          <&cap1106_pins>, "brcm,pins:0";
++        };
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0695-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch b/target/linux/bcm27xx/patches-5.10/950-0695-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch
new file mode 100644
index 0000000000..ced98fd502
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0695-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch
@@ -0,0 +1,38 @@
+From 0427e8464446a03d287e7ec8b7bb74dd983b6988 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 12 Jul 2021 12:27:59 +0100
+Subject: [PATCH] drm/vc4: Fix margin calculations for the right/bottom
+ edges
+
+The calculations clipped the right/bottom edge of the clipped
+range based on the left/top margins.
+
+Fixes: 666e73587f90 ("drm/vc4: Take margin setup into account when updating planes")
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_plane.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_plane.c
++++ b/drivers/gpu/drm/vc4/vc4_plane.c
+@@ -310,16 +310,16 @@ static int vc4_plane_margins_adj(struct
+ 					       adjhdisplay,
+ 					       crtc_state->mode.hdisplay);
+ 	vc4_pstate->crtc_x += left;
+-	if (vc4_pstate->crtc_x > crtc_state->mode.hdisplay - left)
+-		vc4_pstate->crtc_x = crtc_state->mode.hdisplay - left;
++	if (vc4_pstate->crtc_x > crtc_state->mode.hdisplay - right)
++		vc4_pstate->crtc_x = crtc_state->mode.hdisplay - right;
+ 
+ 	adjvdisplay = crtc_state->mode.vdisplay - (top + bottom);
+ 	vc4_pstate->crtc_y = DIV_ROUND_CLOSEST(vc4_pstate->crtc_y *
+ 					       adjvdisplay,
+ 					       crtc_state->mode.vdisplay);
+ 	vc4_pstate->crtc_y += top;
+-	if (vc4_pstate->crtc_y > crtc_state->mode.vdisplay - top)
+-		vc4_pstate->crtc_y = crtc_state->mode.vdisplay - top;
++	if (vc4_pstate->crtc_y > crtc_state->mode.vdisplay - bottom)
++		vc4_pstate->crtc_y = crtc_state->mode.vdisplay - bottom;
+ 
+ 	vc4_pstate->crtc_w = DIV_ROUND_CLOSEST(vc4_pstate->crtc_w *
+ 					       adjhdisplay,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch b/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch
new file mode 100644
index 0000000000..9454b54b49
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0696-ydrm-vc4-fkms-Fix-margin-calculations-for-the-right-.patch
@@ -0,0 +1,38 @@
+From e0aaa1acd1f33cc60e2b5c43cf6aac63bf3bbbc9 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 12 Jul 2021 13:06:07 +0100
+Subject: [PATCH] ydrm/vc4: fkms: Fix margin calculations for the
+ right/bottom edges
+
+The calculations clipped the right/bottom edge of the clipped
+range based on the left/top margins.
+
+https://github.com/raspberrypi/linux/issues/4447
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -458,15 +458,15 @@ static int vc4_fkms_margins_adj(struct d
+ 	plane->dst_x = DIV_ROUND_CLOSEST(plane->dst_x * adjhdisplay,
+ 					 (int)crtc_state->mode.hdisplay);
+ 	plane->dst_x += left;
+-	if (plane->dst_x > (int)(crtc_state->mode.hdisplay - left))
+-		plane->dst_x = crtc_state->mode.hdisplay - left;
++	if (plane->dst_x > (int)(crtc_state->mode.hdisplay - right))
++		plane->dst_x = crtc_state->mode.hdisplay - right;
+ 
+ 	adjvdisplay = crtc_state->mode.vdisplay - (top + bottom);
+ 	plane->dst_y = DIV_ROUND_CLOSEST(plane->dst_y * adjvdisplay,
+ 					 (int)crtc_state->mode.vdisplay);
+ 	plane->dst_y += top;
+-	if (plane->dst_y > (int)(crtc_state->mode.vdisplay - top))
+-		plane->dst_y = crtc_state->mode.vdisplay - top;
++	if (plane->dst_y > (int)(crtc_state->mode.vdisplay - bottom))
++		plane->dst_y = crtc_state->mode.vdisplay - bottom;
+ 
+ 	plane->dst_w = DIV_ROUND_CLOSEST(plane->dst_w * adjhdisplay,
+ 					 crtc_state->mode.hdisplay);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0697-ARM-dts-bcm2711-fold-in-the-correct-interrupt.patch b/target/linux/bcm27xx/patches-5.10/950-0697-ARM-dts-bcm2711-fold-in-the-correct-interrupt.patch
new file mode 100644
index 0000000000..103b5d5473
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0697-ARM-dts-bcm2711-fold-in-the-correct-interrupt.patch
@@ -0,0 +1,33 @@
+From b18f7a3c76cc764e58e9aabc3150a994e1d3f40b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 12 Jul 2021 15:15:44 +0100
+Subject: [PATCH] ARM: dts: bcm2711: fold in the correct interrupt
+
+The new vec node in bcm2711.dtsi should have the correct interrupt
+number to start with, rather than include the bcm283x version and
+patch it later.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711.dtsi | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711.dtsi
++++ b/arch/arm/boot/dts/bcm2711.dtsi
+@@ -304,7 +304,7 @@
+ 			compatible = "brcm,bcm2711-vec";
+ 			reg = <0x7ec13000 0x1000>;
+ 			clocks = <&clocks BCM2835_CLOCK_VEC>;
+-			interrupts = <2 27>;
++			interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+ 			status = "disabled";
+ 		};
+ 
+@@ -1106,7 +1106,3 @@
+ &usb {
+ 	interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ };
+-
+-&vec {
+-	interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+-};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0698-overlays-Add-overlay-for-Si446x-Transceiver-SPI.patch b/target/linux/bcm27xx/patches-5.10/950-0698-overlays-Add-overlay-for-Si446x-Transceiver-SPI.patch
new file mode 100644
index 0000000000..34effa3a32
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0698-overlays-Add-overlay-for-Si446x-Transceiver-SPI.patch
@@ -0,0 +1,100 @@
+From 7f747c53fc4afa9a25eeb3ca290b4fed4690ca3f Mon Sep 17 00:00:00 2001
+From: "Sunip K. Mukherjee" <sunipkmukherjee@gmail.com>
+Date: Sun, 4 Jul 2021 16:03:07 -0400
+Subject: [PATCH] overlays: Add overlay for Si446x Transceiver SPI
+
+See: https://github.com/raspberrypi/linux/pull/4430
+
+Signed-off-by: Sunip K. Mukherjee <sunipkmukherjee@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 10 ++++
+ .../boot/dts/overlays/si446x-spi0-overlay.dts | 53 +++++++++++++++++++
+ 3 files changed, 64 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/si446x-spi0-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -176,6 +176,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	seeed-can-fd-hat-v1.dtbo \
+ 	seeed-can-fd-hat-v2.dtbo \
+ 	sh1106-spi.dtbo \
++	si446x-spi0.dtbo \
+ 	smi.dtbo \
+ 	smi-dev.dtbo \
+ 	smi-nand.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2733,6 +2733,16 @@ Params: speed                   SPI bus
+         height                  Display height (32 or 64; default 64)
+ 
+ 
++Name:   si446x-spi0
++Info:   Overlay for Si446x UHF Transceiver via SPI using si446x driver.
++        The driver is currently out-of-tree at
++        https://github.com/sunipkmukherjee/silabs.git
++Load:   dtoverlay=si446x-spi0,<param>=<val>
++Params: speed                   SPI bus speed (default 4000000)
++        int_pin                 GPIO pin for interrupts (default 17)
++        reset_pin               GPIO pin for RESET (default 27)
++
++
+ Name:   smi
+ Info:   Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
+ Load:   dtoverlay=smi
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/si446x-spi0-overlay.dts
+@@ -0,0 +1,53 @@
++// Overlay for the SiLabs Si446X Controller - SPI0
++// Default Interrupt Pin: 17
++// Default SDN Pin: 27
++/dts-v1/;
++/plugin/;
++
++   / {
++    compatible = "brcm,bcm2835";
++
++    fragment@0 {
++        target = <&spi0>;
++        __overlay__ {
++            // needed to avoid dtc warning
++            #address-cells = <1>;
++            #size-cells = <0>;
++
++            status = "okay";
++
++            uhf0: si446x@0{
++                compatible = "silabs,si446x";
++                reg = <0>; // CE0
++                pinctrl-names = "default";
++                pinctrl-0 = <&uhf0_pins>;
++                interrupt-parent = <&gpio>;
++                interrupts = <17 0x2>; // falling edge
++                spi-max-frequency = <4000000>;
++                sdn_pin = <27>;
++                irq_pin = <17>;
++                status = "okay";
++            };
++        };
++    };
++
++    fragment@1 {
++        target = <&gpio>;
++        __overlay__ {
++            uhf0_pins: uhf0_pins {
++                brcm,pins = <17 27>;
++                brcm,function = <0 1>; // in, out
++                brcm,pull = <2 0>; // high, none
++            };
++        };
++    };
++
++    __overrides__ {
++        int_pin = <&uhf0>, "interrupts:0",
++                  <&uhf0>, "irq_pin:0",
++                  <&uhf0_pins>, "brcm,pins:0";
++        reset_pin = <&uhf0>, "sdn_pin:0",
++                    <&uhf0_pins>, "brcm,pins:4";
++        speed   = <&uhf0>, "spi-max-frequency:0";
++    };
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0699-drm-vc4-Fix-timings-for-VEC-modes.patch b/target/linux/bcm27xx/patches-5.10/950-0699-drm-vc4-Fix-timings-for-VEC-modes.patch
new file mode 100644
index 0000000000..43dfcfc5bc
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0699-drm-vc4-Fix-timings-for-VEC-modes.patch
@@ -0,0 +1,148 @@
+From 023e20cf561dc49897997f55e88b7d336eb5cee9 Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:07:30 +0200
+Subject: [PATCH] drm/vc4: Fix timings for VEC modes
+
+This commit fixes vertical timings of the VEC (composite output) modes
+to accurately represent the 525-line ("NTSC") and 625-line ("PAL") ITU-R
+standards.
+
+Previous timings were actually defined as 502 and 601 lines, resulting
+in non-standard 62.69 Hz and 52 Hz signals being generated,
+respectively.
+
+Changes to vc4_crtc.c have also been made, to make the PixelValve
+vertical timings accurately correspond to the DRM modeline in interlaced
+modes. The resulting VERTA/VERTB register values have been verified
+against the reference values set by the Raspberry Pi firmware.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 70 +++++++++++++++++++++-------------
+ drivers/gpu/drm/vc4/vc4_vec.c  |  4 +-
+ 2 files changed, 45 insertions(+), 29 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -316,8 +316,14 @@ static void vc4_crtc_config_pv(struct dr
+ 	bool is_dsi = (vc4_encoder->type == VC4_ENCODER_TYPE_DSI0 ||
+ 		       vc4_encoder->type == VC4_ENCODER_TYPE_DSI1);
+ 	bool is_dsi1 = vc4_encoder->type == VC4_ENCODER_TYPE_DSI1;
++	bool is_vec = vc4_encoder->type == VC4_ENCODER_TYPE_VEC;
+ 	u32 format = is_dsi1 ? PV_CONTROL_FORMAT_DSIV_24 : PV_CONTROL_FORMAT_24;
+ 	u8 ppc = pv_data->pixels_per_clock;
++
++	u16 vert_bp = mode->crtc_vtotal - mode->crtc_vsync_end;
++	u16 vert_sync = mode->crtc_vsync_end - mode->crtc_vsync_start;
++	u16 vert_fp = mode->crtc_vsync_start - mode->crtc_vdisplay;
++
+ 	bool debug_dump_regs = false;
+ 
+ 	if (debug_dump_regs) {
+@@ -341,49 +347,59 @@ static void vc4_crtc_config_pv(struct dr
+ 		   VC4_SET_FIELD(mode->hdisplay * pixel_rep / ppc,
+ 				 PV_HORZB_HACTIVE));
+ 
+-	CRTC_WRITE(PV_VERTA,
+-		   VC4_SET_FIELD(mode->crtc_vtotal - mode->crtc_vsync_end +
+-				 interlace,
+-				 PV_VERTA_VBP) |
+-		   VC4_SET_FIELD(mode->crtc_vsync_end - mode->crtc_vsync_start,
+-				 PV_VERTA_VSYNC));
+-	CRTC_WRITE(PV_VERTB,
+-		   VC4_SET_FIELD(mode->crtc_vsync_start - mode->crtc_vdisplay,
+-				 PV_VERTB_VFP) |
+-		   VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE));
+-
+ 	if (interlace) {
++		bool odd_field_first = false;
++		u32 field_delay = mode->htotal * pixel_rep / (2 * ppc);
++		u16 vert_bp_even = vert_bp;
++		u16 vert_fp_even = vert_fp;
++
++		if (is_vec) {
++			/* VEC (composite output) */
++			++field_delay;
++			if (mode->htotal == 858) {
++				/* 525-line mode (NTSC or PAL-M) */
++				odd_field_first = true;
++			}
++		}
++
++		if (odd_field_first)
++			++vert_fp_even;
++		else
++			++vert_bp;
++
+ 		CRTC_WRITE(PV_VERTA_EVEN,
+-			   VC4_SET_FIELD(mode->crtc_vtotal -
+-					 mode->crtc_vsync_end,
+-					 PV_VERTA_VBP) |
+-			   VC4_SET_FIELD(mode->crtc_vsync_end -
+-					 mode->crtc_vsync_start,
+-					 PV_VERTA_VSYNC));
++			   VC4_SET_FIELD(vert_bp_even, PV_VERTA_VBP) |
++			   VC4_SET_FIELD(vert_sync, PV_VERTA_VSYNC));
+ 		CRTC_WRITE(PV_VERTB_EVEN,
+-			   VC4_SET_FIELD(mode->crtc_vsync_start -
+-					 mode->crtc_vdisplay,
+-					 PV_VERTB_VFP) |
++			   VC4_SET_FIELD(vert_fp_even, PV_VERTB_VFP) |
+ 			   VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE));
+ 
+-		/* We set up first field even mode for HDMI.  VEC's
+-		 * NTSC mode would want first field odd instead, once
+-		 * we support it (to do so, set ODD_FIRST and put the
+-		 * delay in VSYNCD_EVEN instead).
++		/* We set up first field even mode for HDMI and VEC's PAL.
++		 * For NTSC, we need first field odd.
+ 		 */
+ 		CRTC_WRITE(PV_V_CONTROL,
+ 			   PV_VCONTROL_CONTINUOUS |
+ 			   (is_dsi ? PV_VCONTROL_DSI : 0) |
+ 			   PV_VCONTROL_INTERLACE |
+-			   VC4_SET_FIELD(mode->htotal * pixel_rep / (2 * ppc),
+-					 PV_VCONTROL_ODD_DELAY));
+-		CRTC_WRITE(PV_VSYNCD_EVEN, 0);
++			   (odd_field_first
++				   ? PV_VCONTROL_ODD_FIRST
++				   : VC4_SET_FIELD(field_delay,
++						   PV_VCONTROL_ODD_DELAY)));
++		CRTC_WRITE(PV_VSYNCD_EVEN,
++			   (odd_field_first ? field_delay : 0));
+ 	} else {
+ 		CRTC_WRITE(PV_V_CONTROL,
+ 			   PV_VCONTROL_CONTINUOUS |
+ 			   (is_dsi ? PV_VCONTROL_DSI : 0));
+ 	}
+ 
++	CRTC_WRITE(PV_VERTA,
++		   VC4_SET_FIELD(vert_bp, PV_VERTA_VBP) |
++		   VC4_SET_FIELD(vert_sync, PV_VERTA_VSYNC));
++	CRTC_WRITE(PV_VERTB,
++		   VC4_SET_FIELD(vert_fp, PV_VERTB_VFP) |
++		   VC4_SET_FIELD(mode->crtc_vdisplay, PV_VERTB_VACTIVE));
++
+ 	if (is_dsi)
+ 		CRTC_WRITE(PV_HACT_ACT, mode->hdisplay * pixel_rep);
+ 
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -262,7 +262,7 @@ static void vc4_vec_ntsc_j_mode_set(stru
+ static const struct drm_display_mode ntsc_mode = {
+ 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
+-		 480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
++		 480, 480 + 7, 480 + 7 + 6, 525, 0,
+ 		 DRM_MODE_FLAG_INTERLACE)
+ };
+ 
+@@ -284,7 +284,7 @@ static void vc4_vec_pal_m_mode_set(struc
+ static const struct drm_display_mode pal_mode = {
+ 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
+-		 576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
++		 576, 576 + 4, 576 + 4 + 6, 625, 0,
+ 		 DRM_MODE_FLAG_INTERLACE)
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0700-drm-vc4-Refactor-VEC-TV-mode-setting.patch b/target/linux/bcm27xx/patches-5.10/950-0700-drm-vc4-Refactor-VEC-TV-mode-setting.patch
new file mode 100644
index 0000000000..a1ad94ccef
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0700-drm-vc4-Refactor-VEC-TV-mode-setting.patch
@@ -0,0 +1,167 @@
+From db797f19f66c49273ad00803756c429ed776dc01 Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:07:49 +0200
+Subject: [PATCH] drm/vc4: Refactor VEC TV mode setting
+
+Change the mode_set function pointer logic to declarative config0,
+config1 and custom_freq fields, to make TV mode setting logic more
+concise and uniform.
+
+Additionally, remove the superfluous tv_mode field, which was redundant
+with the mode field in struct drm_tv_connector_state.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_vec.c | 69 +++++++++++------------------------
+ 1 file changed, 22 insertions(+), 47 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -170,8 +170,6 @@ struct vc4_vec {
+ 
+ 	struct clk *clock;
+ 
+-	const struct vc4_vec_tv_mode *tv_mode;
+-
+ 	struct debugfs_regset32 regset;
+ };
+ 
+@@ -217,7 +215,9 @@ enum vc4_vec_tv_mode_id {
+ 
+ struct vc4_vec_tv_mode {
+ 	const struct drm_display_mode *mode;
+-	void (*mode_set)(struct vc4_vec *vec);
++	u32 config0;
++	u32 config1;
++	u32 custom_freq;
+ };
+ 
+ static const struct debugfs_reg32 vec_regs[] = {
+@@ -247,18 +247,6 @@ static const struct debugfs_reg32 vec_re
+ 	VC4_REG32(VEC_DAC_MISC),
+ };
+ 
+-static void vc4_vec_ntsc_mode_set(struct vc4_vec *vec)
+-{
+-	VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN);
+-	VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
+-}
+-
+-static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
+-{
+-	VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD);
+-	VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
+-}
+-
+ static const struct drm_display_mode ntsc_mode = {
+ 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
+@@ -266,21 +254,6 @@ static const struct drm_display_mode nts
+ 		 DRM_MODE_FLAG_INTERLACE)
+ };
+ 
+-static void vc4_vec_pal_mode_set(struct vc4_vec *vec)
+-{
+-	VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
+-	VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
+-}
+-
+-static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
+-{
+-	VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
+-	VEC_WRITE(VEC_CONFIG1,
+-		  VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ);
+-	VEC_WRITE(VEC_FREQ3_2, 0x223b);
+-	VEC_WRITE(VEC_FREQ1_0, 0x61d1);
+-}
+-
+ static const struct drm_display_mode pal_mode = {
+ 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
+@@ -291,19 +264,24 @@ static const struct drm_display_mode pal
+ static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
+ 	[VC4_VEC_TV_MODE_NTSC] = {
+ 		.mode = &ntsc_mode,
+-		.mode_set = vc4_vec_ntsc_mode_set,
++		.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_NTSC_J] = {
+ 		.mode = &ntsc_mode,
+-		.mode_set = vc4_vec_ntsc_j_mode_set,
++		.config0 = VEC_CONFIG0_NTSC_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_PAL] = {
+ 		.mode = &pal_mode,
+-		.mode_set = vc4_vec_pal_mode_set,
++		.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_PAL_M] = {
+ 		.mode = &pal_mode,
+-		.mode_set = vc4_vec_pal_m_mode_set,
++		.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
++		.custom_freq = 0x223b61d1,
+ 	},
+ };
+ 
+@@ -373,7 +351,6 @@ static struct drm_connector *vc4_vec_con
+ 	drm_object_attach_property(&connector->base,
+ 				   dev->mode_config.tv_mode_property,
+ 				   VC4_VEC_TV_MODE_NTSC);
+-	vec->tv_mode = &vc4_vec_tv_modes[VC4_VEC_TV_MODE_NTSC];
+ 
+ 	drm_connector_attach_encoder(connector, vec->encoder);
+ 
+@@ -406,6 +383,7 @@ static void vc4_vec_encoder_enable(struc
+ {
+ 	struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
+ 	struct vc4_vec *vec = vc4_vec_encoder->vec;
++	unsigned int tv_mode = vec->connector->state->tv.mode;
+ 	int ret;
+ 
+ 	ret = pm_runtime_get_sync(&vec->pdev->dev);
+@@ -461,7 +439,15 @@ static void vc4_vec_encoder_enable(struc
+ 	/* Mask all interrupts. */
+ 	VEC_WRITE(VEC_MASK0, 0);
+ 
+-	vec->tv_mode->mode_set(vec);
++	VEC_WRITE(VEC_CONFIG0, vc4_vec_tv_modes[tv_mode].config0);
++	VEC_WRITE(VEC_CONFIG1, vc4_vec_tv_modes[tv_mode].config1);
++	if (vc4_vec_tv_modes[tv_mode].custom_freq != 0) {
++		VEC_WRITE(VEC_FREQ3_2,
++			  (vc4_vec_tv_modes[tv_mode].custom_freq >> 16) &
++			  0xffff);
++		VEC_WRITE(VEC_FREQ1_0,
++			  vc4_vec_tv_modes[tv_mode].custom_freq & 0xffff);
++	}
+ 
+ 	VEC_WRITE(VEC_DAC_MISC,
+ 		  VEC_DAC_MISC_VID_ACT | VEC_DAC_MISC_DAC_RST_N);
+@@ -476,16 +462,6 @@ static bool vc4_vec_encoder_mode_fixup(s
+ 	return true;
+ }
+ 
+-static void vc4_vec_encoder_atomic_mode_set(struct drm_encoder *encoder,
+-					struct drm_crtc_state *crtc_state,
+-					struct drm_connector_state *conn_state)
+-{
+-	struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
+-	struct vc4_vec *vec = vc4_vec_encoder->vec;
+-
+-	vec->tv_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
+-}
+-
+ static int vc4_vec_encoder_atomic_check(struct drm_encoder *encoder,
+ 					struct drm_crtc_state *crtc_state,
+ 					struct drm_connector_state *conn_state)
+@@ -506,7 +482,6 @@ static const struct drm_encoder_helper_f
+ 	.enable = vc4_vec_encoder_enable,
+ 	.mode_fixup = vc4_vec_encoder_mode_fixup,
+ 	.atomic_check = vc4_vec_encoder_atomic_check,
+-	.atomic_mode_set = vc4_vec_encoder_atomic_mode_set,
+ };
+ 
+ static const struct vc4_vec_variant bcm2835_vec_variant = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0701-drm-vc4-Fix-definition-of-PAL-M-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0701-drm-vc4-Fix-definition-of-PAL-M-mode.patch
new file mode 100644
index 0000000000..93796758b9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0701-drm-vc4-Fix-definition-of-PAL-M-mode.patch
@@ -0,0 +1,77 @@
+From fd0b5aec6d320f10b869cae06b6f2c8ca650e8e2 Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:07:53 +0200
+Subject: [PATCH] drm/vc4: Fix definition of PAL-M mode
+
+PAL-M is a Brazilian analog TV standard that uses a PAL-style chroma
+subcarrier at 3.575611[888111] MHz on top of 525-line (480i60) timings.
+This commit makes the driver actually use the proper VEC preset for this
+mode instead of just changing PAL subcarrier frequency.
+
+DRM mode constant names have also been changed, as they no longer
+correspond to the "NTSC" or "PAL" terms.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_vec.c | 18 +++++++++---------
+ 1 file changed, 9 insertions(+), 9 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -68,6 +68,7 @@
+ #define VEC_CONFIG0_STD_MASK		GENMASK(1, 0)
+ #define VEC_CONFIG0_NTSC_STD		0
+ #define VEC_CONFIG0_PAL_BDGHI_STD	1
++#define VEC_CONFIG0_PAL_M_STD		2
+ #define VEC_CONFIG0_PAL_N_STD		3
+ 
+ #define VEC_SCHPH			0x108
+@@ -247,14 +248,14 @@ static const struct debugfs_reg32 vec_re
+ 	VC4_REG32(VEC_DAC_MISC),
+ };
+ 
+-static const struct drm_display_mode ntsc_mode = {
++static const struct drm_display_mode drm_mode_480i = {
+ 	DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
+ 		 480, 480 + 7, 480 + 7 + 6, 525, 0,
+ 		 DRM_MODE_FLAG_INTERLACE)
+ };
+ 
+-static const struct drm_display_mode pal_mode = {
++static const struct drm_display_mode drm_mode_576i = {
+ 	DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
+ 		 720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
+ 		 576, 576 + 4, 576 + 4 + 6, 625, 0,
+@@ -263,25 +264,24 @@ static const struct drm_display_mode pal
+ 
+ static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
+ 	[VC4_VEC_TV_MODE_NTSC] = {
+-		.mode = &ntsc_mode,
++		.mode = &drm_mode_480i,
+ 		.config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
+ 		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_NTSC_J] = {
+-		.mode = &ntsc_mode,
++		.mode = &drm_mode_480i,
+ 		.config0 = VEC_CONFIG0_NTSC_STD,
+ 		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_PAL] = {
+-		.mode = &pal_mode,
++		.mode = &drm_mode_576i,
+ 		.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
+ 		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ 	[VC4_VEC_TV_MODE_PAL_M] = {
+-		.mode = &pal_mode,
+-		.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
+-		.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
+-		.custom_freq = 0x223b61d1,
++		.mode = &drm_mode_480i,
++		.config0 = VEC_CONFIG0_PAL_M_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0702-drm-vc4-Add-support-for-more-analog-TV-standards.patch b/target/linux/bcm27xx/patches-5.10/950-0702-drm-vc4-Add-support-for-more-analog-TV-standards.patch
new file mode 100644
index 0000000000..3db5488a2e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0702-drm-vc4-Add-support-for-more-analog-TV-standards.patch
@@ -0,0 +1,148 @@
+From 6eca6c329b247adab647f1d4b380cd630f923806 Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:07:58 +0200
+Subject: [PATCH] drm/vc4: Add support for more analog TV standards
+
+Add support for the following composite output modes (all of them are
+somewhat more obscure than the previously defined ones):
+
+- NTSC_443 - NTSC-style signal with the chroma subcarrier shifted to
+  4.43361875 MHz (the PAL subcarrier frequency). Never used for
+  broadcasting, but sometimes used as a hack to play NTSC content in PAL
+  regions (e.g. on VCRs).
+- PAL_N - PAL with alternative chroma subcarrier frequency,
+  3.58205625 MHz. Used as a broadcast standard in Argentina, Paraguay
+  and Uruguay to fit 576i50 with colour in 6 MHz channel raster.
+- PAL60 - 480i60 signal with PAL-style color at normal European PAL
+  frequency. Another non-standard, non-broadcast mode, used in similar
+  contexts as NTSC_443. Some displays support one but not the other.
+- SECAM - French frequency-modulated analog color standard; also have
+  been broadcast in Eastern Europe and various parts of Africa and Asia.
+  Uses the same 576i50 timings as PAL.
+
+Also added some comments explaining color subcarrier frequency
+registers.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_vec.c | 63 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 63 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -45,6 +45,7 @@
+ #define VEC_CONFIG0_YDEL(x)		((x) << 26)
+ #define VEC_CONFIG0_CDEL_MASK		GENMASK(25, 24)
+ #define VEC_CONFIG0_CDEL(x)		((x) << 24)
++#define VEC_CONFIG0_SECAM_STD		BIT(21)
+ #define VEC_CONFIG0_PBPR_FIL		BIT(18)
+ #define VEC_CONFIG0_CHROMA_GAIN_MASK	GENMASK(17, 16)
+ #define VEC_CONFIG0_CHROMA_GAIN_UNITY	(0 << 16)
+@@ -75,6 +76,27 @@
+ #define VEC_SOFT_RESET			0x10c
+ #define VEC_CLMP0_START			0x144
+ #define VEC_CLMP0_END			0x148
++
++/*
++ * These set the color subcarrier frequency
++ * if VEC_CONFIG1_CUSTOM_FREQ is enabled.
++ *
++ * VEC_FREQ1_0 contains the most significant 16-bit half-word,
++ * VEC_FREQ3_2 contains the least significant 16-bit half-word.
++ * 0x80000000 seems to be equivalent to the pixel clock
++ * (which itself is the VEC clock divided by 8).
++ *
++ * Reference values (with the default pixel clock of 13.5 MHz):
++ *
++ * NTSC  (3579545.[45] Hz)     - 0x21F07C1F
++ * PAL   (4433618.75 Hz)       - 0x2A098ACB
++ * PAL-M (3575611.[888111] Hz) - 0x21E6EFE3
++ * PAL-N (3582056.25 Hz)       - 0x21F69446
++ *
++ * NOTE: For SECAM, it is used as the Dr center frequency,
++ * regardless of whether VEC_CONFIG1_CUSTOM_FREQ is enabled or not;
++ * that is specified as 4406250 Hz, which corresponds to 0x29C71C72.
++ */
+ #define VEC_FREQ3_2			0x180
+ #define VEC_FREQ1_0			0x184
+ 
+@@ -117,6 +139,14 @@
+ 
+ #define VEC_INTERRUPT_CONTROL		0x190
+ #define VEC_INTERRUPT_STATUS		0x194
++
++/*
++ * Db center frequency for SECAM; the clock for this is the same as for
++ * VEC_FREQ3_2/VEC_FREQ1_0, which is used for Dr center frequency.
++ *
++ * This is specified as 4250000 Hz, which corresponds to 0x284BDA13.
++ * That is also the default value, so no need to set it explicitly.
++ */
+ #define VEC_FCW_SECAM_B			0x198
+ #define VEC_SECAM_GAIN_VAL		0x19c
+ 
+@@ -210,8 +240,12 @@ to_vc4_vec_connector(struct drm_connecto
+ enum vc4_vec_tv_mode_id {
+ 	VC4_VEC_TV_MODE_NTSC,
+ 	VC4_VEC_TV_MODE_NTSC_J,
++	VC4_VEC_TV_MODE_NTSC_443,
+ 	VC4_VEC_TV_MODE_PAL,
+ 	VC4_VEC_TV_MODE_PAL_M,
++	VC4_VEC_TV_MODE_PAL_N,
++	VC4_VEC_TV_MODE_PAL60,
++	VC4_VEC_TV_MODE_SECAM,
+ };
+ 
+ struct vc4_vec_tv_mode {
+@@ -273,6 +307,13 @@ static const struct vc4_vec_tv_mode vc4_
+ 		.config0 = VEC_CONFIG0_NTSC_STD,
+ 		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
++	[VC4_VEC_TV_MODE_NTSC_443] = {
++		/* NTSC with PAL chroma frequency */
++		.mode = &drm_mode_480i,
++		.config0 = VEC_CONFIG0_NTSC_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
++		.custom_freq = 0x2a098acb,
++	},
+ 	[VC4_VEC_TV_MODE_PAL] = {
+ 		.mode = &drm_mode_576i,
+ 		.config0 = VEC_CONFIG0_PAL_BDGHI_STD,
+@@ -283,6 +324,24 @@ static const struct vc4_vec_tv_mode vc4_
+ 		.config0 = VEC_CONFIG0_PAL_M_STD,
+ 		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
+ 	},
++	[VC4_VEC_TV_MODE_PAL_N] = {
++		.mode = &drm_mode_576i,
++		.config0 = VEC_CONFIG0_PAL_N_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
++	},
++	[VC4_VEC_TV_MODE_PAL60] = {
++		/* PAL-M with chroma frequency of regular PAL */
++		.mode = &drm_mode_480i,
++		.config0 = VEC_CONFIG0_PAL_M_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
++		.custom_freq = 0x2a098acb,
++	},
++	[VC4_VEC_TV_MODE_SECAM] = {
++		.mode = &drm_mode_576i,
++		.config0 = VEC_CONFIG0_SECAM_STD,
++		.config1 = VEC_CONFIG1_C_CVBS_CVBS,
++		.custom_freq = 0x29c71c72,
++	},
+ };
+ 
+ static enum drm_connector_status
+@@ -505,8 +564,12 @@ static const struct of_device_id vc4_vec
+ static const char * const tv_mode_names[] = {
+ 	[VC4_VEC_TV_MODE_NTSC] = "NTSC",
+ 	[VC4_VEC_TV_MODE_NTSC_J] = "NTSC-J",
++	[VC4_VEC_TV_MODE_NTSC_443] = "NTSC-443",
+ 	[VC4_VEC_TV_MODE_PAL] = "PAL",
+ 	[VC4_VEC_TV_MODE_PAL_M] = "PAL-M",
++	[VC4_VEC_TV_MODE_PAL_N] = "PAL-N",
++	[VC4_VEC_TV_MODE_PAL60] = "PAL60",
++	[VC4_VEC_TV_MODE_SECAM] = "SECAM",
+ };
+ 
+ static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0703-drm-vc4-Allow-setting-the-TV-norm-via-module-paramet.patch b/target/linux/bcm27xx/patches-5.10/950-0703-drm-vc4-Allow-setting-the-TV-norm-via-module-paramet.patch
new file mode 100644
index 0000000000..ba08f6fa37
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0703-drm-vc4-Allow-setting-the-TV-norm-via-module-paramet.patch
@@ -0,0 +1,144 @@
+From 2a153d97f5ea9086f309a0abef57dfe0b7a46e96 Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:08:01 +0200
+Subject: [PATCH] drm/vc4: Allow setting the TV norm via module
+ parameter
+
+Similar to the ch7006 and nouveau drivers, introduce a "tv_mode" module
+parameter that allow setting the TV norm by specifying vc4.tv_norm= on
+the kernel command line.
+
+If that is not specified, try inferring one of the most popular norms
+(PAL or NTSC) from the video mode specified on the command line. On
+Raspberry Pis, this causes the most common cases of the sdtv_mode
+setting in config.txt to be respected.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_vec.c | 72 ++++++++++++++++++++++++++++-------
+ 1 file changed, 58 insertions(+), 14 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -66,7 +66,7 @@
+ #define VEC_CONFIG0_YCDELAY		BIT(4)
+ #define VEC_CONFIG0_RAMPEN		BIT(2)
+ #define VEC_CONFIG0_YCDIS		BIT(2)
+-#define VEC_CONFIG0_STD_MASK		GENMASK(1, 0)
++#define VEC_CONFIG0_STD_MASK		(VEC_CONFIG0_SECAM_STD | GENMASK(1, 0))
+ #define VEC_CONFIG0_NTSC_STD		0
+ #define VEC_CONFIG0_PAL_BDGHI_STD	1
+ #define VEC_CONFIG0_PAL_M_STD		2
+@@ -185,6 +185,8 @@
+ #define VEC_DAC_MISC_DAC_RST_N		BIT(0)
+ 
+ 
++static char *vc4_vec_tv_norm;
++
+ struct vc4_vec_variant {
+ 	u32 dac_config;
+ };
+@@ -344,6 +346,44 @@ static const struct vc4_vec_tv_mode vc4_
+ 	},
+ };
+ 
++static const char * const tv_mode_names[] = {
++	[VC4_VEC_TV_MODE_NTSC] = "NTSC",
++	[VC4_VEC_TV_MODE_NTSC_J] = "NTSC-J",
++	[VC4_VEC_TV_MODE_NTSC_443] = "NTSC-443",
++	[VC4_VEC_TV_MODE_PAL] = "PAL",
++	[VC4_VEC_TV_MODE_PAL_M] = "PAL-M",
++	[VC4_VEC_TV_MODE_PAL_N] = "PAL-N",
++	[VC4_VEC_TV_MODE_PAL60] = "PAL60",
++	[VC4_VEC_TV_MODE_SECAM] = "SECAM",
++};
++
++enum vc4_vec_tv_mode_id
++vc4_vec_get_default_mode(struct drm_connector *connector)
++{
++	int i;
++
++	if (vc4_vec_tv_norm) {
++		for (i = 0; i < ARRAY_SIZE(tv_mode_names); i++)
++			if (strcmp(vc4_vec_tv_norm, tv_mode_names[i]) == 0)
++				return (enum vc4_vec_tv_mode_id) i;
++	} else if (connector->cmdline_mode.specified &&
++		   ((connector->cmdline_mode.refresh_specified &&
++		     (connector->cmdline_mode.refresh == 25 ||
++		      connector->cmdline_mode.refresh == 50)) ||
++		    (!connector->cmdline_mode.refresh_specified &&
++		     (connector->cmdline_mode.yres == 288 ||
++		      connector->cmdline_mode.yres == 576)))) {
++		/*
++		 * no explicitly specified TV norm; use PAL if a mode that
++		 * looks like PAL has been specified on the command line
++		 */
++		return VC4_VEC_TV_MODE_PAL;
++	}
++
++	/* in all other cases, default to NTSC */
++	return VC4_VEC_TV_MODE_NTSC;
++}
++
+ static enum drm_connector_status
+ vc4_vec_connector_detect(struct drm_connector *connector, bool force)
+ {
+@@ -373,11 +413,19 @@ static int vc4_vec_connector_get_modes(s
+ 	return 1;
+ }
+ 
++static void vc4_vec_connector_reset(struct drm_connector *connector)
++{
++	drm_atomic_helper_connector_reset(connector);
++	/* preserve TV standard */
++	if (connector->state)
++		connector->state->tv.mode = vc4_vec_get_default_mode(connector);
++}
++
+ static const struct drm_connector_funcs vc4_vec_connector_funcs = {
+ 	.detect = vc4_vec_connector_detect,
+ 	.fill_modes = drm_helper_probe_single_connector_modes,
+ 	.destroy = vc4_vec_connector_destroy,
+-	.reset = drm_atomic_helper_connector_reset,
++	.reset = vc4_vec_connector_reset,
+ 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+ };
+@@ -409,7 +457,7 @@ static struct drm_connector *vc4_vec_con
+ 
+ 	drm_object_attach_property(&connector->base,
+ 				   dev->mode_config.tv_mode_property,
+-				   VC4_VEC_TV_MODE_NTSC);
++				   vc4_vec_get_default_mode(connector));
+ 
+ 	drm_connector_attach_encoder(connector, vec->encoder);
+ 
+@@ -561,17 +609,6 @@ static const struct of_device_id vc4_vec
+ 	{ /* sentinel */ },
+ };
+ 
+-static const char * const tv_mode_names[] = {
+-	[VC4_VEC_TV_MODE_NTSC] = "NTSC",
+-	[VC4_VEC_TV_MODE_NTSC_J] = "NTSC-J",
+-	[VC4_VEC_TV_MODE_NTSC_443] = "NTSC-443",
+-	[VC4_VEC_TV_MODE_PAL] = "PAL",
+-	[VC4_VEC_TV_MODE_PAL_M] = "PAL-M",
+-	[VC4_VEC_TV_MODE_PAL_N] = "PAL-N",
+-	[VC4_VEC_TV_MODE_PAL60] = "PAL60",
+-	[VC4_VEC_TV_MODE_SECAM] = "SECAM",
+-};
+-
+ static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
+ {
+ 	struct platform_device *pdev = to_platform_device(dev);
+@@ -680,3 +717,10 @@ struct platform_driver vc4_vec_driver =
+ 		.of_match_table = vc4_vec_dt_match,
+ 	},
+ };
++
++module_param_named(tv_norm, vc4_vec_tv_norm, charp, 0600);
++MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
++		 "\t\tSupported: NTSC, NTSC-J, NTSC-443, PAL, PAL-M, PAL-N,\n"
++		 "\t\t\tPAL60, SECAM.\n"
++		 "\t\tDefault: PAL if a 50 Hz mode has been set via video=,\n"
++		 "\t\t\tNTSC otherwise");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0704-drm-vc4-Refactor-mode-checking-logic.patch b/target/linux/bcm27xx/patches-5.10/950-0704-drm-vc4-Refactor-mode-checking-logic.patch
new file mode 100644
index 0000000000..df730ee343
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0704-drm-vc4-Refactor-mode-checking-logic.patch
@@ -0,0 +1,85 @@
+From 63470fe3eedc28c8fd8c050cb5427a3f31bd99bd Mon Sep 17 00:00:00 2001
+From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+Date: Thu, 15 Jul 2021 01:08:05 +0200
+Subject: [PATCH] drm/vc4: Refactor mode checking logic
+
+Replace drm_encoder_helper_funcs::atomic_check with
+drm_connector_helper_funcs::atomic_check - the former is not called
+during drm_mode_obj_set_property_ioctl(). Set crtc_state->mode_changed
+if TV norm changes even without explicit mode change. This makes things
+like "xrandr --output Composite-1 --set mode PAL-M" work properly.
+
+Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_vec.c | 42 ++++++++++++++++++++++-------------
+ 1 file changed, 26 insertions(+), 16 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_vec.c
++++ b/drivers/gpu/drm/vc4/vc4_vec.c
+@@ -421,6 +421,31 @@ static void vc4_vec_connector_reset(stru
+ 		connector->state->tv.mode = vc4_vec_get_default_mode(connector);
+ }
+ 
++static int vc4_vec_connector_atomic_check(struct drm_connector *conn,
++					  struct drm_atomic_state *state)
++{
++	struct drm_connector_state *old_state =
++		drm_atomic_get_old_connector_state(state, conn);
++	struct drm_connector_state *new_state =
++		drm_atomic_get_new_connector_state(state, conn);
++
++	const struct vc4_vec_tv_mode *vec_mode =
++		&vc4_vec_tv_modes[new_state->tv.mode];
++
++	if (new_state->crtc) {
++		struct drm_crtc_state *crtc_state =
++			drm_atomic_get_new_crtc_state(state, new_state->crtc);
++
++		if (!drm_mode_equal(vec_mode->mode, &crtc_state->mode))
++			return -EINVAL;
++
++		if (old_state->tv.mode != new_state->tv.mode)
++			crtc_state->mode_changed = true;
++	}
++
++	return 0;
++}
++
+ static const struct drm_connector_funcs vc4_vec_connector_funcs = {
+ 	.detect = vc4_vec_connector_detect,
+ 	.fill_modes = drm_helper_probe_single_connector_modes,
+@@ -432,6 +457,7 @@ static const struct drm_connector_funcs
+ 
+ static const struct drm_connector_helper_funcs vc4_vec_connector_helper_funcs = {
+ 	.get_modes = vc4_vec_connector_get_modes,
++	.atomic_check = vc4_vec_connector_atomic_check,
+ };
+ 
+ static struct drm_connector *vc4_vec_connector_init(struct drm_device *dev,
+@@ -569,26 +595,10 @@ static bool vc4_vec_encoder_mode_fixup(s
+ 	return true;
+ }
+ 
+-static int vc4_vec_encoder_atomic_check(struct drm_encoder *encoder,
+-					struct drm_crtc_state *crtc_state,
+-					struct drm_connector_state *conn_state)
+-{
+-	const struct vc4_vec_tv_mode *vec_mode;
+-
+-	vec_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
+-
+-	if (conn_state->crtc &&
+-	    !drm_mode_equal(vec_mode->mode, &crtc_state->adjusted_mode))
+-		return -EINVAL;
+-
+-	return 0;
+-}
+-
+ static const struct drm_encoder_helper_funcs vc4_vec_encoder_helper_funcs = {
+ 	.disable = vc4_vec_encoder_disable,
+ 	.enable = vc4_vec_encoder_enable,
+ 	.mode_fixup = vc4_vec_encoder_mode_fixup,
+-	.atomic_check = vc4_vec_encoder_atomic_check,
+ };
+ 
+ static const struct vc4_vec_variant bcm2835_vec_variant = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0705-drm-vc4-Fix-typo-when-getting-firmware-node.patch b/target/linux/bcm27xx/patches-5.10/950-0705-drm-vc4-Fix-typo-when-getting-firmware-node.patch
new file mode 100644
index 0000000000..8d00fdf0e9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0705-drm-vc4-Fix-typo-when-getting-firmware-node.patch
@@ -0,0 +1,21 @@
+From d53e26567315cab039c8ae67c4f5b807c9a498b1 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Thu, 15 Jul 2021 20:08:13 +0100
+Subject: [PATCH] drm/vc4: Fix typo when getting firmware node
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ drivers/gpu/drm/vc4/vc4_drv.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_drv.c
++++ b/drivers/gpu/drm/vc4/vc4_drv.c
+@@ -321,7 +321,7 @@ static int vc4_drm_bind(struct device *d
+ 
+ 	node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0);
+ 	if (node) {
+-		vc4->firmware = rpi_firmware_get(dev->of_node);
++		vc4->firmware = rpi_firmware_get(node);
+ 		of_node_put(node);
+ 
+ 		if (!vc4->firmware)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0706-ARM-dts-bcm2711-Tidy-the-HDMI-I2C-aliases.patch b/target/linux/bcm27xx/patches-5.10/950-0706-ARM-dts-bcm2711-Tidy-the-HDMI-I2C-aliases.patch
new file mode 100644
index 0000000000..f6a60f54d1
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0706-ARM-dts-bcm2711-Tidy-the-HDMI-I2C-aliases.patch
@@ -0,0 +1,110 @@
+From fdde18c3416afd1e971ddee7a65f08bed9fd44a7 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 19 Jul 2021 10:47:02 +0100
+Subject: [PATCH] ARM: dts: bcm2711: Tidy the HDMI I2C aliases
+
+The bcm2711 vc3-kms-v3d overlay enables the I2C instances used for
+EDID data. Give these distinct I2C interface numbers (20 & 21) to
+clearly separate them from other regular I2C blocks (1, 3-6) and the
+mux on I2C0 (10+).
+
+The 2711 DTS tree no longer includes i2c2, so the explicit deletion can
+be removed.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 10 ++--------
+ arch/arm/boot/dts/bcm2711-rpi-400.dts | 10 ++--------
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 10 ++--------
+ 3 files changed, 6 insertions(+), 24 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -349,11 +349,12 @@
+ 		mmc0 = &emmc2;
+ 		mmc1 = &mmcnr;
+ 		mmc2 = &sdhost;
+-		/delete-property/ i2c2;
+ 		i2c3 = &i2c3;
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		i2c20 = &ddc0;
++		i2c21 = &ddc1;
+ 		spi3 = &spi3;
+ 		spi4 = &spi4;
+ 		spi5 = &spi5;
+@@ -559,13 +560,6 @@
+ 	pinctrl-0 = <&i2s_pins>;
+ };
+ 
+-/ {
+-	__overrides__ {
+-		/delete-property/ i2c2_baudrate;
+-		/delete-property/ i2c2_iknowwhatimdoing;
+-	};
+-};
+-
+ // =============================================
+ // Board specific stuff here
+ 
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -348,11 +348,12 @@
+ 		mmc0 = &emmc2;
+ 		mmc1 = &mmcnr;
+ 		mmc2 = &sdhost;
+-		/delete-property/ i2c2;
+ 		i2c3 = &i2c3;
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		i2c20 = &ddc0;
++		i2c21 = &ddc1;
+ 		spi3 = &spi3;
+ 		spi4 = &spi4;
+ 		spi5 = &spi5;
+@@ -558,13 +559,6 @@
+ 	pinctrl-0 = <&i2s_pins>;
+ };
+ 
+-/ {
+-	__overrides__ {
+-		/delete-property/ i2c2_baudrate;
+-		/delete-property/ i2c2_iknowwhatimdoing;
+-	};
+-};
+-
+ // =============================================
+ // Board specific stuff here
+ 
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -363,11 +363,12 @@
+ 		mmc0 = &emmc2;
+ 		mmc1 = &mmcnr;
+ 		mmc2 = &sdhost;
+-		/delete-property/ i2c2;
+ 		i2c3 = &i2c3;
+ 		i2c4 = &i2c4;
+ 		i2c5 = &i2c5;
+ 		i2c6 = &i2c6;
++		i2c20 = &ddc0;
++		i2c21 = &ddc1;
+ 		spi3 = &spi3;
+ 		spi4 = &spi4;
+ 		spi5 = &spi5;
+@@ -573,13 +574,6 @@
+ 	pinctrl-0 = <&i2s_pins>;
+ };
+ 
+-/ {
+-	__overrides__ {
+-		/delete-property/ i2c2_baudrate;
+-		/delete-property/ i2c2_iknowwhatimdoing;
+-	};
+-};
+-
+ // =============================================
+ // Board specific stuff here
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0707-media-i2c-imx477-Fix-framerates-for-1332x990-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0707-media-i2c-imx477-Fix-framerates-for-1332x990-mode.patch
new file mode 100644
index 0000000000..edebae1b1a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0707-media-i2c-imx477-Fix-framerates-for-1332x990-mode.patch
@@ -0,0 +1,25 @@
+From 184e61559e917f70f5d10c96a43055c0891504b0 Mon Sep 17 00:00:00 2001
+From: David Plowman <david.plowman@raspberrypi.com>
+Date: Tue, 20 Jul 2021 15:10:03 +0100
+Subject: [PATCH] media: i2c: imx477: Fix framerates for 1332x990 mode
+
+The imx477 driver's line length for this mode had not been updated to
+the value supplied to us by the sensor manufacturer. With this
+correction the sensor delivers the framerates that are expected.
+
+Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
+---
+ drivers/media/i2c/imx477.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx477.c
++++ b/drivers/media/i2c/imx477.c
+@@ -982,7 +982,7 @@ static const struct imx477_mode supporte
+ 		/* 120fps. 2x2 binned and cropped */
+ 		.width = 1332,
+ 		.height = 990,
+-		.line_length_pix = 0x1460,
++		.line_length_pix = 6664,
+ 		.crop = {
+ 			/*
+ 			 * FIXME: the analog crop rectangle is actually
diff --git a/target/linux/bcm27xx/patches-5.10/950-0708-drm-uapi-Add-USB-connector-type.patch b/target/linux/bcm27xx/patches-5.10/950-0708-drm-uapi-Add-USB-connector-type.patch
new file mode 100644
index 0000000000..5577652d46
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0708-drm-uapi-Add-USB-connector-type.patch
@@ -0,0 +1,49 @@
+From 6e2988c88939fdd70e6a456bdd7ad65fcdcf97c7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 13 Mar 2021 12:25:43 +0100
+Subject: [PATCH] drm/uapi: Add USB connector type
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ Upstream commit 757e26712337be6be70f7405c38cc0639957eedc ]
+
+Add a connector type for USB connected display panels.
+
+Some examples of what current userspace will name the connector:
+- Weston: "UNNAMED-%d"
+- Mutter: "Unknown20-%d"
+- X: "Unknown20-%d"
+
+v2:
+- Update drm_connector_enum_list
+- Add examples to commit message
+
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210313112545.37527-2-noralf@tronnes.org
+---
+ drivers/gpu/drm/drm_connector.c | 1 +
+ include/uapi/drm/drm_mode.h     | 1 +
+ 2 files changed, 2 insertions(+)
+
+--- a/drivers/gpu/drm/drm_connector.c
++++ b/drivers/gpu/drm/drm_connector.c
+@@ -94,6 +94,7 @@ static struct drm_conn_prop_enum_list dr
+ 	{ DRM_MODE_CONNECTOR_DPI, "DPI" },
+ 	{ DRM_MODE_CONNECTOR_WRITEBACK, "Writeback" },
+ 	{ DRM_MODE_CONNECTOR_SPI, "SPI" },
++	{ DRM_MODE_CONNECTOR_USB, "USB" },
+ };
+ 
+ void drm_connector_ida_init(void)
+--- a/include/uapi/drm/drm_mode.h
++++ b/include/uapi/drm/drm_mode.h
+@@ -367,6 +367,7 @@ enum drm_mode_subconnector {
+ #define DRM_MODE_CONNECTOR_DPI		17
+ #define DRM_MODE_CONNECTOR_WRITEBACK	18
+ #define DRM_MODE_CONNECTOR_SPI		19
++#define DRM_MODE_CONNECTOR_USB		20
+ 
+ struct drm_mode_get_connector {
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0709-drm-Add-GUD-USB-Display-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0709-drm-Add-GUD-USB-Display-driver.patch
new file mode 100644
index 0000000000..cb05ed3e3e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0709-drm-Add-GUD-USB-Display-driver.patch
@@ -0,0 +1,2676 @@
+From 140a4e12d8ec470fe0807931893d3d48ffda46b3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 13 Mar 2021 12:25:45 +0100
+Subject: [PATCH] drm: Add GUD USB Display driver
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ Upstream commit 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 ]
+
+This adds a USB display driver with the intention that it can be
+used with future USB interfaced low end displays/adapters. The Linux
+gadget device driver will serve as the canonical device implementation.
+
+The following DRM properties are supported:
+- Plane rotation
+- Connector TV properties
+
+There is also support for backlight brightness exposed as a backlight
+device.
+
+Display modes can be made available to the host driver either as DRM
+display modes or through EDID. If both are present, EDID is just passed
+on to userspace.
+
+Performance is preferred over color depth, so if the device supports
+RGB565, DRM_CAP_DUMB_PREFERRED_DEPTH will return 16.
+
+If the device transfer buffer can't fit an uncompressed framebuffer
+update, the update is split up into parts that do fit.
+
+Optimal user experience is achieved by providing damage reports either by
+setting FB_DAMAGE_CLIPS on pageflips or calling DRM_IOCTL_MODE_DIRTYFB.
+
+LZ4 compression is used if the device supports it.
+
+The driver supports a one bit monochrome transfer format: R1. This is not
+implemented in the gadget driver. It is added in preparation for future
+monochrome e-ink displays.
+
+The driver is MIT licensed to smooth the path for any BSD port of the
+driver.
+
+v2:
+- Use devm_drm_dev_alloc() and drmm_mode_config_init()
+- drm_fbdev_generic_setup: Use preferred_bpp=0, 16 was a copy paste error
+- The drm_backlight_helper is dropped, copy in the code
+- Support protocol version backwards compatibility for device
+
+v3:
+- Use donated Openmoko USB pid
+- Use direct compression from framebuffer when pitch matches, not only on
+  full frames, so split updates can benefit
+- Use __le16 in struct gud_drm_req_get_connector_status
+- Set edid property when the device only provides edid
+- Clear compression fields in struct gud_drm_req_set_buffer
+- Fix protocol version negotiation
+- Remove mode->vrefresh, it's calculated
+
+v4:
+- Drop the status req polling which was a workaround for something that
+  turned out to be a dwc2 udc driver problem
+- Add a flag for the Linux gadget to require a status request on
+  SET operations. Other devices will only get status req on STALL errors
+- Use protocol specific error codes (Peter)
+- Add a flag for devices that want to receive the entire framebuffer on
+  each flush (Lubomir)
+- Retry a failed framebuffer flush
+- If mode has changed wait for worker and clear pending damage before
+  queuing up new damage, fb width/height might have changed
+- Increase error counter on bulk transfer failures
+- Use DRM_MODE_CONNECTOR_USB
+- Handle R1 kmalloc error (Peter)
+- Don't try and replicate the USB get descriptor request standard for the
+  display descriptor (Peter)
+- Make max_buffer_size optional (Peter), drop the pow2 requirement since
+  it's not necessary anymore.
+- Don't pre-alloc a control request buffer, it was only 4k
+- Let gud.h describe the whole protocol explicitly and don't let DRM
+  leak into it (Peter)
+- Drop display mode .hskew and .vscan from the protocol
+- Shorten names: s/GUD_DRM_/GUD_/ s/gud_drm_/gud_/ (Peter)
+- Fix gud_pipe_check() connector picking when switching connector
+- Drop gud_drm_driver_gem_create_object() cached is default now
+- Retrieve USB device from struct drm_device.dev instead of keeping a
+  pointer
+- Honour fb->offsets[0]
+- Fix mode fetching when connector status is forced
+- Check EDID length reported by the device
+- Use drm_do_get_edid() so userspace can overrride EDID
+- Set epoch counter to signal connector status change
+- gud_drm_driver can be const now
+
+v5:
+- GUD_DRM_FORMAT_R1: Use non-human ascii values (Daniel)
+- Change name to: GUD USB Display (Thomas, Simon)
+- Change one __u32 -> __le32 in protocol header
+- Always log fb flush errors, unless the previous one failed
+- Run backlight update in a worker to avoid upsetting lockdep (Daniel)
+- Drop backlight_ops.get_brightness, there's no readback from the device
+  so it doesn't really add anything.
+- Set dma mask, needed by dma-buf importers
+
+v6:
+- Use obj-y in Makefile (Peter)
+- Fix missing le32_to_cpu() when using GUD_DISPLAY_MAGIC (Peter)
+- Set initial brightness on backlight device
+
+v7:
+- LZ4_compress_default() can return zero, check for that
+- Fix memory leak in gud_pipe_check() error path (Peter)
+- Improve debug and error messages (Peter)
+- Don't pass length in protocol structs (Peter)
+- Pass USB interface to gud_usb_control_msg() et al. (Peter)
+- Improve gud_connector_fill_properties() (Peter)
+- Add GUD_PIXEL_FORMAT_RGB111 (Peter)
+- Remove GUD_REQ_SET_VERSION (Peter)
+- Fix DRM_IOCTL_MODE_OBJ_SETPROPERTY and the rotation property
+- Fix dma-buf import (Thomas)
+
+v8:
+- Forgot to filter RGB111 from reaching userspace
+- Handle a device that only returns unknown device properties (Peter)
+- s/GUD_PIXEL_FORMAT_RGB111/GUD_PIXEL_FORMAT_XRGB1111/ (Peter)
+- Fix R1 and XRGB1111 format conversion
+- Add FIXME about Big Endian being broken (Peter, Ilia)
+
+Cc: Lubomir Rintel <lkundrak@v3.sk>
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Reviewed-by: Peter Stuge <peter@stuge.se>
+Tested-by: Peter Stuge <peter@stuge.se>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210313112545.37527-4-noralf@tronnes.org
+[ backport changes:
+  - Remove include drm_gem_atomic_helper.h
+  - s/drm_gem_simple_display_pipe_prepare_fb/drm_gem_fb_simple_display_pipe_prepare_fb/
+  - Remove const from gud_drm_driver
+  - Change drm_gem_shmem_{vmap,vunmap} signatures
+  - Add gud_gem_create_object() to get cached memory mapping.
+]
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ MAINTAINERS                         |   8 +
+ drivers/gpu/drm/Kconfig             |   2 +
+ drivers/gpu/drm/Makefile            |   1 +
+ drivers/gpu/drm/gud/Kconfig         |  14 +
+ drivers/gpu/drm/gud/Makefile        |   4 +
+ drivers/gpu/drm/gud/gud_connector.c | 729 ++++++++++++++++++++++++++++
+ drivers/gpu/drm/gud/gud_drv.c       | 674 +++++++++++++++++++++++++
+ drivers/gpu/drm/gud/gud_internal.h  | 154 ++++++
+ drivers/gpu/drm/gud/gud_pipe.c      | 551 +++++++++++++++++++++
+ include/drm/gud.h                   | 333 +++++++++++++
+ 10 files changed, 2470 insertions(+)
+ create mode 100644 drivers/gpu/drm/gud/Kconfig
+ create mode 100644 drivers/gpu/drm/gud/Makefile
+ create mode 100644 drivers/gpu/drm/gud/gud_connector.c
+ create mode 100644 drivers/gpu/drm/gud/gud_drv.c
+ create mode 100644 drivers/gpu/drm/gud/gud_internal.h
+ create mode 100644 drivers/gpu/drm/gud/gud_pipe.c
+ create mode 100644 include/drm/gud.h
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -5525,6 +5525,14 @@ S:	Maintained
+ F:	Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml
+ F:	drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
+ 
++DRM DRIVER FOR GENERIC USB DISPLAY
++M:	Noralf Trønnes <noralf@tronnes.org>
++S:	Maintained
++W:	https://github.com/notro/gud/wiki
++T:	git git://anongit.freedesktop.org/drm/drm-misc
++F:	drivers/gpu/drm/gud/
++F:	include/drm/gud.h
++
+ DRM DRIVER FOR GRAIN MEDIA GM12U320 PROJECTORS
+ M:	Hans de Goede <hdegoede@redhat.com>
+ S:	Maintained
+--- a/drivers/gpu/drm/Kconfig
++++ b/drivers/gpu/drm/Kconfig
+@@ -392,6 +392,8 @@ source "drivers/gpu/drm/tidss/Kconfig"
+ 
+ source "drivers/gpu/drm/xlnx/Kconfig"
+ 
++source "drivers/gpu/drm/gud/Kconfig"
++
+ # Keep legacy drivers last
+ 
+ menuconfig DRM_LEGACY
+--- a/drivers/gpu/drm/Makefile
++++ b/drivers/gpu/drm/Makefile
+@@ -124,3 +124,4 @@ obj-$(CONFIG_DRM_ASPEED_GFX) += aspeed/
+ obj-$(CONFIG_DRM_MCDE) += mcde/
+ obj-$(CONFIG_DRM_TIDSS) += tidss/
+ obj-y			+= xlnx/
++obj-y			+= gud/
+--- /dev/null
++++ b/drivers/gpu/drm/gud/Kconfig
+@@ -0,0 +1,14 @@
++# SPDX-License-Identifier: GPL-2.0
++
++config DRM_GUD
++	tristate "GUD USB Display"
++	depends on DRM && USB
++	select LZ4_COMPRESS
++	select DRM_KMS_HELPER
++	select DRM_GEM_SHMEM_HELPER
++	select BACKLIGHT_CLASS_DEVICE
++	help
++	  This is a DRM display driver for GUD USB Displays or display
++	  adapters.
++
++	  If M is selected the module will be called gud.
+--- /dev/null
++++ b/drivers/gpu/drm/gud/Makefile
+@@ -0,0 +1,4 @@
++# SPDX-License-Identifier: GPL-2.0
++
++gud-y				:= gud_drv.o gud_pipe.o gud_connector.o
++obj-$(CONFIG_DRM_GUD)		+= gud.o
+--- /dev/null
++++ b/drivers/gpu/drm/gud/gud_connector.c
+@@ -0,0 +1,729 @@
++// SPDX-License-Identifier: MIT
++/*
++ * Copyright 2020 Noralf Trønnes
++ */
++
++#include <linux/backlight.h>
++#include <linux/workqueue.h>
++
++#include <drm/drm_atomic.h>
++#include <drm/drm_atomic_state_helper.h>
++#include <drm/drm_connector.h>
++#include <drm/drm_drv.h>
++#include <drm/drm_encoder.h>
++#include <drm/drm_file.h>
++#include <drm/drm_modeset_helper_vtables.h>
++#include <drm/drm_print.h>
++#include <drm/drm_probe_helper.h>
++#include <drm/drm_simple_kms_helper.h>
++#include <drm/gud.h>
++
++#include "gud_internal.h"
++
++struct gud_connector {
++	struct drm_connector connector;
++	struct drm_encoder encoder;
++	struct backlight_device *backlight;
++	struct work_struct backlight_work;
++
++	/* Supported properties */
++	u16 *properties;
++	unsigned int num_properties;
++
++	/* Initial gadget tv state if applicable, applied on state reset */
++	struct drm_tv_connector_state initial_tv_state;
++
++	/*
++	 * Initial gadget backlight brightness if applicable, applied on state reset.
++	 * The value -ENODEV is used to signal no backlight.
++	 */
++	int initial_brightness;
++};
++
++static inline struct gud_connector *to_gud_connector(struct drm_connector *connector)
++{
++	return container_of(connector, struct gud_connector, connector);
++}
++
++static void gud_conn_err(struct drm_connector *connector, const char *msg, int ret)
++{
++	dev_err(connector->dev->dev, "%s: %s (ret=%d)\n", connector->name, msg, ret);
++}
++
++/*
++ * Use a worker to avoid taking kms locks inside the backlight lock.
++ * Other display drivers use backlight within their kms locks.
++ * This avoids inconsistent locking rules, which would upset lockdep.
++ */
++static void gud_connector_backlight_update_status_work(struct work_struct *work)
++{
++	struct gud_connector *gconn = container_of(work, struct gud_connector, backlight_work);
++	struct drm_connector *connector = &gconn->connector;
++	struct drm_connector_state *connector_state;
++	struct drm_device *drm = connector->dev;
++	struct drm_modeset_acquire_ctx ctx;
++	struct drm_atomic_state *state;
++	int idx, ret;
++
++	if (!drm_dev_enter(drm, &idx))
++		return;
++
++	state = drm_atomic_state_alloc(drm);
++	if (!state) {
++		ret = -ENOMEM;
++		goto exit;
++	}
++
++	drm_modeset_acquire_init(&ctx, 0);
++	state->acquire_ctx = &ctx;
++retry:
++	connector_state = drm_atomic_get_connector_state(state, connector);
++	if (IS_ERR(connector_state)) {
++		ret = PTR_ERR(connector_state);
++		goto out;
++	}
++
++	/* Reuse tv.brightness to avoid having to subclass */
++	connector_state->tv.brightness = gconn->backlight->props.brightness;
++
++	ret = drm_atomic_commit(state);
++out:
++	if (ret == -EDEADLK) {
++		drm_atomic_state_clear(state);
++		drm_modeset_backoff(&ctx);
++		goto retry;
++	}
++
++	drm_atomic_state_put(state);
++
++	drm_modeset_drop_locks(&ctx);
++	drm_modeset_acquire_fini(&ctx);
++exit:
++	drm_dev_exit(idx);
++
++	if (ret)
++		dev_err(drm->dev, "Failed to update backlight, err=%d\n", ret);
++}
++
++static int gud_connector_backlight_update_status(struct backlight_device *bd)
++{
++	struct drm_connector *connector = bl_get_data(bd);
++	struct gud_connector *gconn = to_gud_connector(connector);
++
++	/* The USB timeout is 5 seconds so use system_long_wq for worst case scenario */
++	queue_work(system_long_wq, &gconn->backlight_work);
++
++	return 0;
++}
++
++static const struct backlight_ops gud_connector_backlight_ops = {
++	.update_status	= gud_connector_backlight_update_status,
++};
++
++static int gud_connector_backlight_register(struct gud_connector *gconn)
++{
++	struct drm_connector *connector = &gconn->connector;
++	struct backlight_device *bd;
++	const char *name;
++	const struct backlight_properties props = {
++		.type = BACKLIGHT_RAW,
++		.scale = BACKLIGHT_SCALE_NON_LINEAR,
++		.max_brightness = 100,
++		.brightness = gconn->initial_brightness,
++	};
++
++	name = kasprintf(GFP_KERNEL, "card%d-%s-backlight",
++			 connector->dev->primary->index, connector->name);
++	if (!name)
++		return -ENOMEM;
++
++	bd = backlight_device_register(name, connector->kdev, connector,
++				       &gud_connector_backlight_ops, &props);
++	kfree(name);
++	if (IS_ERR(bd))
++		return PTR_ERR(bd);
++
++	gconn->backlight = bd;
++
++	return 0;
++}
++
++static int gud_connector_detect(struct drm_connector *connector,
++				struct drm_modeset_acquire_ctx *ctx, bool force)
++{
++	struct gud_device *gdrm = to_gud_device(connector->dev);
++	int idx, ret;
++	u8 status;
++
++	if (!drm_dev_enter(connector->dev, &idx))
++		return connector_status_disconnected;
++
++	if (force) {
++		ret = gud_usb_set(gdrm, GUD_REQ_SET_CONNECTOR_FORCE_DETECT,
++				  connector->index, NULL, 0);
++		if (ret) {
++			ret = connector_status_unknown;
++			goto exit;
++		}
++	}
++
++	ret = gud_usb_get_u8(gdrm, GUD_REQ_GET_CONNECTOR_STATUS, connector->index, &status);
++	if (ret) {
++		ret = connector_status_unknown;
++		goto exit;
++	}
++
++	switch (status & GUD_CONNECTOR_STATUS_CONNECTED_MASK) {
++	case GUD_CONNECTOR_STATUS_DISCONNECTED:
++		ret = connector_status_disconnected;
++		break;
++	case GUD_CONNECTOR_STATUS_CONNECTED:
++		ret = connector_status_connected;
++		break;
++	default:
++		ret = connector_status_unknown;
++		break;
++	};
++
++	if (status & GUD_CONNECTOR_STATUS_CHANGED)
++		connector->epoch_counter += 1;
++exit:
++	drm_dev_exit(idx);
++
++	return ret;
++}
++
++struct gud_connector_get_edid_ctx {
++	void *buf;
++	size_t len;
++	bool edid_override;
++};
++
++static int gud_connector_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len)
++{
++	struct gud_connector_get_edid_ctx *ctx = data;
++	size_t start = block * EDID_LENGTH;
++
++	ctx->edid_override = false;
++
++	if (start + len > ctx->len)
++		return -1;
++
++	memcpy(buf, ctx->buf + start, len);
++
++	return 0;
++}
++
++static int gud_connector_get_modes(struct drm_connector *connector)
++{
++	struct gud_device *gdrm = to_gud_device(connector->dev);
++	struct gud_display_mode_req *reqmodes = NULL;
++	struct gud_connector_get_edid_ctx edid_ctx;
++	unsigned int i, num_modes = 0;
++	struct edid *edid = NULL;
++	int idx, ret;
++
++	if (!drm_dev_enter(connector->dev, &idx))
++		return 0;
++
++	edid_ctx.edid_override = true;
++	edid_ctx.buf = kmalloc(GUD_CONNECTOR_MAX_EDID_LEN, GFP_KERNEL);
++	if (!edid_ctx.buf)
++		goto out;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTOR_EDID, connector->index,
++			  edid_ctx.buf, GUD_CONNECTOR_MAX_EDID_LEN);
++	if (ret > 0 && ret % EDID_LENGTH) {
++		gud_conn_err(connector, "Invalid EDID size", ret);
++	} else if (ret > 0) {
++		edid_ctx.len = ret;
++		edid = drm_do_get_edid(connector, gud_connector_get_edid_block, &edid_ctx);
++	}
++
++	kfree(edid_ctx.buf);
++	drm_connector_update_edid_property(connector, edid);
++
++	if (edid && edid_ctx.edid_override)
++		goto out;
++
++	reqmodes = kmalloc_array(GUD_CONNECTOR_MAX_NUM_MODES, sizeof(*reqmodes), GFP_KERNEL);
++	if (!reqmodes)
++		goto out;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTOR_MODES, connector->index,
++			  reqmodes, GUD_CONNECTOR_MAX_NUM_MODES * sizeof(*reqmodes));
++	if (ret <= 0)
++		goto out;
++	if (ret % sizeof(*reqmodes)) {
++		gud_conn_err(connector, "Invalid display mode array size", ret);
++		goto out;
++	}
++
++	num_modes = ret / sizeof(*reqmodes);
++
++	for (i = 0; i < num_modes; i++) {
++		struct drm_display_mode *mode;
++
++		mode = drm_mode_create(connector->dev);
++		if (!mode) {
++			num_modes = i;
++			goto out;
++		}
++
++		gud_to_display_mode(mode, &reqmodes[i]);
++		drm_mode_probed_add(connector, mode);
++	}
++out:
++	if (!num_modes)
++		num_modes = drm_add_edid_modes(connector, edid);
++
++	kfree(reqmodes);
++	kfree(edid);
++	drm_dev_exit(idx);
++
++	return num_modes;
++}
++
++static int gud_connector_atomic_check(struct drm_connector *connector,
++				      struct drm_atomic_state *state)
++{
++	struct drm_connector_state *new_state;
++	struct drm_crtc_state *new_crtc_state;
++	struct drm_connector_state *old_state;
++
++	new_state = drm_atomic_get_new_connector_state(state, connector);
++	if (!new_state->crtc)
++		return 0;
++
++	old_state = drm_atomic_get_old_connector_state(state, connector);
++	new_crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc);
++
++	if (old_state->tv.margins.left != new_state->tv.margins.left ||
++	    old_state->tv.margins.right != new_state->tv.margins.right ||
++	    old_state->tv.margins.top != new_state->tv.margins.top ||
++	    old_state->tv.margins.bottom != new_state->tv.margins.bottom ||
++	    old_state->tv.mode != new_state->tv.mode ||
++	    old_state->tv.brightness != new_state->tv.brightness ||
++	    old_state->tv.contrast != new_state->tv.contrast ||
++	    old_state->tv.flicker_reduction != new_state->tv.flicker_reduction ||
++	    old_state->tv.overscan != new_state->tv.overscan ||
++	    old_state->tv.saturation != new_state->tv.saturation ||
++	    old_state->tv.hue != new_state->tv.hue)
++		new_crtc_state->connectors_changed = true;
++
++	return 0;
++}
++
++static const struct drm_connector_helper_funcs gud_connector_helper_funcs = {
++	.detect_ctx = gud_connector_detect,
++	.get_modes = gud_connector_get_modes,
++	.atomic_check = gud_connector_atomic_check,
++};
++
++static int gud_connector_late_register(struct drm_connector *connector)
++{
++	struct gud_connector *gconn = to_gud_connector(connector);
++
++	if (gconn->initial_brightness < 0)
++		return 0;
++
++	return gud_connector_backlight_register(gconn);
++}
++
++static void gud_connector_early_unregister(struct drm_connector *connector)
++{
++	struct gud_connector *gconn = to_gud_connector(connector);
++
++	backlight_device_unregister(gconn->backlight);
++	cancel_work_sync(&gconn->backlight_work);
++}
++
++static void gud_connector_destroy(struct drm_connector *connector)
++{
++	struct gud_connector *gconn = to_gud_connector(connector);
++
++	drm_connector_cleanup(connector);
++	kfree(gconn->properties);
++	kfree(gconn);
++}
++
++static void gud_connector_reset(struct drm_connector *connector)
++{
++	struct gud_connector *gconn = to_gud_connector(connector);
++
++	drm_atomic_helper_connector_reset(connector);
++	connector->state->tv = gconn->initial_tv_state;
++	/* Set margins from command line */
++	drm_atomic_helper_connector_tv_reset(connector);
++	if (gconn->initial_brightness >= 0)
++		connector->state->tv.brightness = gconn->initial_brightness;
++}
++
++static const struct drm_connector_funcs gud_connector_funcs = {
++	.fill_modes = drm_helper_probe_single_connector_modes,
++	.late_register = gud_connector_late_register,
++	.early_unregister = gud_connector_early_unregister,
++	.destroy = gud_connector_destroy,
++	.reset = gud_connector_reset,
++	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
++	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
++};
++
++/*
++ * The tv.mode property is shared among the connectors and its enum names are
++ * driver specific. This means that if more than one connector uses tv.mode,
++ * the enum names has to be the same.
++ */
++static int gud_connector_add_tv_mode(struct gud_device *gdrm, struct drm_connector *connector)
++{
++	size_t buf_len = GUD_CONNECTOR_TV_MODE_MAX_NUM * GUD_CONNECTOR_TV_MODE_NAME_LEN;
++	const char *modes[GUD_CONNECTOR_TV_MODE_MAX_NUM];
++	unsigned int i, num_modes;
++	char *buf;
++	int ret;
++
++	buf = kmalloc(buf_len, GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTOR_TV_MODE_VALUES,
++			  connector->index, buf, buf_len);
++	if (ret < 0)
++		goto free;
++	if (!ret || ret % GUD_CONNECTOR_TV_MODE_NAME_LEN) {
++		ret = -EIO;
++		goto free;
++	}
++
++	num_modes = ret / GUD_CONNECTOR_TV_MODE_NAME_LEN;
++	for (i = 0; i < num_modes; i++)
++		modes[i] = &buf[i * GUD_CONNECTOR_TV_MODE_NAME_LEN];
++
++	ret = drm_mode_create_tv_properties(connector->dev, num_modes, modes);
++free:
++	kfree(buf);
++	if (ret < 0)
++		gud_conn_err(connector, "Failed to add TV modes", ret);
++
++	return ret;
++}
++
++static struct drm_property *
++gud_connector_property_lookup(struct drm_connector *connector, u16 prop)
++{
++	struct drm_mode_config *config = &connector->dev->mode_config;
++
++	switch (prop) {
++	case GUD_PROPERTY_TV_LEFT_MARGIN:
++		return config->tv_left_margin_property;
++	case GUD_PROPERTY_TV_RIGHT_MARGIN:
++		return config->tv_right_margin_property;
++	case GUD_PROPERTY_TV_TOP_MARGIN:
++		return config->tv_top_margin_property;
++	case GUD_PROPERTY_TV_BOTTOM_MARGIN:
++		return config->tv_bottom_margin_property;
++	case GUD_PROPERTY_TV_MODE:
++		return config->tv_mode_property;
++	case GUD_PROPERTY_TV_BRIGHTNESS:
++		return config->tv_brightness_property;
++	case GUD_PROPERTY_TV_CONTRAST:
++		return config->tv_contrast_property;
++	case GUD_PROPERTY_TV_FLICKER_REDUCTION:
++		return config->tv_flicker_reduction_property;
++	case GUD_PROPERTY_TV_OVERSCAN:
++		return config->tv_overscan_property;
++	case GUD_PROPERTY_TV_SATURATION:
++		return config->tv_saturation_property;
++	case GUD_PROPERTY_TV_HUE:
++		return config->tv_hue_property;
++	default:
++		return ERR_PTR(-EINVAL);
++	}
++}
++
++static unsigned int *gud_connector_tv_state_val(u16 prop, struct drm_tv_connector_state *state)
++{
++	switch (prop) {
++	case GUD_PROPERTY_TV_LEFT_MARGIN:
++		return &state->margins.left;
++	case GUD_PROPERTY_TV_RIGHT_MARGIN:
++		return &state->margins.right;
++	case GUD_PROPERTY_TV_TOP_MARGIN:
++		return &state->margins.top;
++	case GUD_PROPERTY_TV_BOTTOM_MARGIN:
++		return &state->margins.bottom;
++	case GUD_PROPERTY_TV_MODE:
++		return &state->mode;
++	case GUD_PROPERTY_TV_BRIGHTNESS:
++		return &state->brightness;
++	case GUD_PROPERTY_TV_CONTRAST:
++		return &state->contrast;
++	case GUD_PROPERTY_TV_FLICKER_REDUCTION:
++		return &state->flicker_reduction;
++	case GUD_PROPERTY_TV_OVERSCAN:
++		return &state->overscan;
++	case GUD_PROPERTY_TV_SATURATION:
++		return &state->saturation;
++	case GUD_PROPERTY_TV_HUE:
++		return &state->hue;
++	default:
++		return ERR_PTR(-EINVAL);
++	}
++}
++
++static int gud_connector_add_properties(struct gud_device *gdrm, struct gud_connector *gconn)
++{
++	struct drm_connector *connector = &gconn->connector;
++	struct drm_device *drm = &gdrm->drm;
++	struct gud_property_req *properties;
++	unsigned int i, num_properties;
++	int ret;
++
++	properties = kcalloc(GUD_CONNECTOR_PROPERTIES_MAX_NUM, sizeof(*properties), GFP_KERNEL);
++	if (!properties)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTOR_PROPERTIES, connector->index,
++			  properties, GUD_CONNECTOR_PROPERTIES_MAX_NUM * sizeof(*properties));
++	if (ret <= 0)
++		goto out;
++	if (ret % sizeof(*properties)) {
++		ret = -EIO;
++		goto out;
++	}
++
++	num_properties = ret / sizeof(*properties);
++	ret = 0;
++
++	gconn->properties = kcalloc(num_properties, sizeof(*gconn->properties), GFP_KERNEL);
++	if (!gconn->properties) {
++		ret = -ENOMEM;
++		goto out;
++	}
++
++	for (i = 0; i < num_properties; i++) {
++		u16 prop = le16_to_cpu(properties[i].prop);
++		u64 val = le64_to_cpu(properties[i].val);
++		struct drm_property *property;
++		unsigned int *state_val;
++
++		drm_dbg(drm, "property: %u = %llu(0x%llx)\n", prop, val, val);
++
++		switch (prop) {
++		case GUD_PROPERTY_TV_LEFT_MARGIN:
++			fallthrough;
++		case GUD_PROPERTY_TV_RIGHT_MARGIN:
++			fallthrough;
++		case GUD_PROPERTY_TV_TOP_MARGIN:
++			fallthrough;
++		case GUD_PROPERTY_TV_BOTTOM_MARGIN:
++			ret = drm_mode_create_tv_margin_properties(drm);
++			if (ret)
++				goto out;
++			break;
++		case GUD_PROPERTY_TV_MODE:
++			ret = gud_connector_add_tv_mode(gdrm, connector);
++			if (ret)
++				goto out;
++			break;
++		case GUD_PROPERTY_TV_BRIGHTNESS:
++			fallthrough;
++		case GUD_PROPERTY_TV_CONTRAST:
++			fallthrough;
++		case GUD_PROPERTY_TV_FLICKER_REDUCTION:
++			fallthrough;
++		case GUD_PROPERTY_TV_OVERSCAN:
++			fallthrough;
++		case GUD_PROPERTY_TV_SATURATION:
++			fallthrough;
++		case GUD_PROPERTY_TV_HUE:
++			/* This is a no-op if already added. */
++			ret = drm_mode_create_tv_properties(drm, 0, NULL);
++			if (ret)
++				goto out;
++			break;
++		case GUD_PROPERTY_BACKLIGHT_BRIGHTNESS:
++			if (val > 100) {
++				ret = -EINVAL;
++				goto out;
++			}
++			gconn->initial_brightness = val;
++			break;
++		default:
++			/* New ones might show up in future devices, skip those we don't know. */
++			drm_dbg(drm, "Ignoring unknown property: %u\n", prop);
++			continue;
++		}
++
++		gconn->properties[gconn->num_properties++] = prop;
++
++		if (prop == GUD_PROPERTY_BACKLIGHT_BRIGHTNESS)
++			continue; /* not a DRM property */
++
++		property = gud_connector_property_lookup(connector, prop);
++		if (WARN_ON(IS_ERR(property)))
++			continue;
++
++		state_val = gud_connector_tv_state_val(prop, &gconn->initial_tv_state);
++		if (WARN_ON(IS_ERR(state_val)))
++			continue;
++
++		*state_val = val;
++		drm_object_attach_property(&connector->base, property, 0);
++	}
++out:
++	kfree(properties);
++
++	return ret;
++}
++
++int gud_connector_fill_properties(struct drm_connector_state *connector_state,
++				  struct gud_property_req *properties)
++{
++	struct gud_connector *gconn = to_gud_connector(connector_state->connector);
++	unsigned int i;
++
++	for (i = 0; i < gconn->num_properties; i++) {
++		u16 prop = gconn->properties[i];
++		u64 val;
++
++		if (prop == GUD_PROPERTY_BACKLIGHT_BRIGHTNESS) {
++			val = connector_state->tv.brightness;
++		} else {
++			unsigned int *state_val;
++
++			state_val = gud_connector_tv_state_val(prop, &connector_state->tv);
++			if (WARN_ON_ONCE(IS_ERR(state_val)))
++				return PTR_ERR(state_val);
++
++			val = *state_val;
++		}
++
++		properties[i].prop = cpu_to_le16(prop);
++		properties[i].val = cpu_to_le64(val);
++	}
++
++	return gconn->num_properties;
++}
++
++static int gud_connector_create(struct gud_device *gdrm, unsigned int index,
++				struct gud_connector_descriptor_req *desc)
++{
++	struct drm_device *drm = &gdrm->drm;
++	struct gud_connector *gconn;
++	struct drm_connector *connector;
++	struct drm_encoder *encoder;
++	int ret, connector_type;
++	u32 flags;
++
++	gconn = kzalloc(sizeof(*gconn), GFP_KERNEL);
++	if (!gconn)
++		return -ENOMEM;
++
++	INIT_WORK(&gconn->backlight_work, gud_connector_backlight_update_status_work);
++	gconn->initial_brightness = -ENODEV;
++	flags = le32_to_cpu(desc->flags);
++	connector = &gconn->connector;
++
++	drm_dbg(drm, "Connector: index=%u type=%u flags=0x%x\n", index, desc->connector_type, flags);
++
++	switch (desc->connector_type) {
++	case GUD_CONNECTOR_TYPE_PANEL:
++		connector_type = DRM_MODE_CONNECTOR_USB;
++		break;
++	case GUD_CONNECTOR_TYPE_VGA:
++		connector_type = DRM_MODE_CONNECTOR_VGA;
++		break;
++	case GUD_CONNECTOR_TYPE_DVI:
++		connector_type = DRM_MODE_CONNECTOR_DVID;
++		break;
++	case GUD_CONNECTOR_TYPE_COMPOSITE:
++		connector_type = DRM_MODE_CONNECTOR_Composite;
++		break;
++	case GUD_CONNECTOR_TYPE_SVIDEO:
++		connector_type = DRM_MODE_CONNECTOR_SVIDEO;
++		break;
++	case GUD_CONNECTOR_TYPE_COMPONENT:
++		connector_type = DRM_MODE_CONNECTOR_Component;
++		break;
++	case GUD_CONNECTOR_TYPE_DISPLAYPORT:
++		connector_type = DRM_MODE_CONNECTOR_DisplayPort;
++		break;
++	case GUD_CONNECTOR_TYPE_HDMI:
++		connector_type = DRM_MODE_CONNECTOR_HDMIA;
++		break;
++	default: /* future types */
++		connector_type = DRM_MODE_CONNECTOR_USB;
++		break;
++	};
++
++	drm_connector_helper_add(connector, &gud_connector_helper_funcs);
++	ret = drm_connector_init(drm, connector, &gud_connector_funcs, connector_type);
++	if (ret) {
++		kfree(connector);
++		return ret;
++	}
++
++	if (WARN_ON(connector->index != index))
++		return -EINVAL;
++
++	if (flags & GUD_CONNECTOR_FLAGS_POLL_STATUS)
++		connector->polled = (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT);
++	if (flags & GUD_CONNECTOR_FLAGS_INTERLACE)
++		connector->interlace_allowed = true;
++	if (flags & GUD_CONNECTOR_FLAGS_DOUBLESCAN)
++		connector->doublescan_allowed = true;
++
++	ret = gud_connector_add_properties(gdrm, gconn);
++	if (ret) {
++		gud_conn_err(connector, "Failed to add properties", ret);
++		return ret;
++	}
++
++	/* The first connector is attached to the existing simple pipe encoder */
++	if (!connector->index) {
++		encoder = &gdrm->pipe.encoder;
++	} else {
++		encoder = &gconn->encoder;
++
++		ret = drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_NONE);
++		if (ret)
++			return ret;
++
++		encoder->possible_crtcs = 1;
++	}
++
++	return drm_connector_attach_encoder(connector, encoder);
++}
++
++int gud_get_connectors(struct gud_device *gdrm)
++{
++	struct gud_connector_descriptor_req *descs;
++	unsigned int i, num_connectors;
++	int ret;
++
++	descs = kmalloc_array(GUD_CONNECTORS_MAX_NUM, sizeof(*descs), GFP_KERNEL);
++	if (!descs)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTORS, 0,
++			  descs, GUD_CONNECTORS_MAX_NUM * sizeof(descs));
++	if (ret < 0)
++		goto free;
++	if (!ret || ret % sizeof(*descs)) {
++		ret = -EIO;
++		goto free;
++	}
++
++	num_connectors = ret / sizeof(*descs);
++
++	for (i = 0; i < num_connectors; i++) {
++		ret = gud_connector_create(gdrm, i, &descs[i]);
++		if (ret)
++			goto free;
++	}
++free:
++	kfree(descs);
++
++	return ret;
++}
+--- /dev/null
++++ b/drivers/gpu/drm/gud/gud_drv.c
+@@ -0,0 +1,674 @@
++// SPDX-License-Identifier: MIT
++/*
++ * Copyright 2020 Noralf Trønnes
++ */
++
++#include <linux/dma-buf.h>
++#include <linux/dma-mapping.h>
++#include <linux/lz4.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/string_helpers.h>
++#include <linux/usb.h>
++#include <linux/vmalloc.h>
++#include <linux/workqueue.h>
++
++#include <drm/drm_atomic_helper.h>
++#include <drm/drm_damage_helper.h>
++#include <drm/drm_debugfs.h>
++#include <drm/drm_drv.h>
++#include <drm/drm_fb_helper.h>
++#include <drm/drm_fourcc.h>
++#include <drm/drm_gem_framebuffer_helper.h>
++#include <drm/drm_gem_shmem_helper.h>
++#include <drm/drm_managed.h>
++#include <drm/drm_print.h>
++#include <drm/drm_probe_helper.h>
++#include <drm/drm_simple_kms_helper.h>
++#include <drm/gud.h>
++
++#include "gud_internal.h"
++
++/* Only used internally */
++static const struct drm_format_info gud_drm_format_r1 = {
++	.format = GUD_DRM_FORMAT_R1,
++	.num_planes = 1,
++	.char_per_block = { 1, 0, 0 },
++	.block_w = { 8, 0, 0 },
++	.block_h = { 1, 0, 0 },
++	.hsub = 1,
++	.vsub = 1,
++};
++
++static const struct drm_format_info gud_drm_format_xrgb1111 = {
++	.format = GUD_DRM_FORMAT_XRGB1111,
++	.num_planes = 1,
++	.char_per_block = { 1, 0, 0 },
++	.block_w = { 2, 0, 0 },
++	.block_h = { 1, 0, 0 },
++	.hsub = 1,
++	.vsub = 1,
++};
++
++static int gud_usb_control_msg(struct usb_interface *intf, bool in,
++			       u8 request, u16 value, void *buf, size_t len)
++{
++	u8 requesttype = USB_TYPE_VENDOR | USB_RECIP_INTERFACE;
++	u8 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
++	struct usb_device *usb = interface_to_usbdev(intf);
++	unsigned int pipe;
++
++	if (len && !buf)
++		return -EINVAL;
++
++	if (in) {
++		pipe = usb_rcvctrlpipe(usb, 0);
++		requesttype |= USB_DIR_IN;
++	} else {
++		pipe = usb_sndctrlpipe(usb, 0);
++		requesttype |= USB_DIR_OUT;
++	}
++
++	return usb_control_msg(usb, pipe, request, requesttype, value,
++			       ifnum, buf, len, USB_CTRL_GET_TIMEOUT);
++}
++
++static int gud_get_display_descriptor(struct usb_interface *intf,
++				      struct gud_display_descriptor_req *desc)
++{
++	void *buf;
++	int ret;
++
++	buf = kmalloc(sizeof(*desc), GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	ret = gud_usb_control_msg(intf, true, GUD_REQ_GET_DESCRIPTOR, 0, buf, sizeof(*desc));
++	memcpy(desc, buf, sizeof(*desc));
++	kfree(buf);
++	if (ret < 0)
++		return ret;
++	if (ret != sizeof(*desc))
++		return -EIO;
++
++	if (desc->magic != le32_to_cpu(GUD_DISPLAY_MAGIC))
++		return -ENODATA;
++
++	DRM_DEV_DEBUG_DRIVER(&intf->dev,
++			     "version=%u flags=0x%x compression=0x%x max_buffer_size=%u\n",
++			     desc->version, le32_to_cpu(desc->flags), desc->compression,
++			     le32_to_cpu(desc->max_buffer_size));
++
++	if (!desc->version || !desc->max_width || !desc->max_height ||
++	    le32_to_cpu(desc->min_width) > le32_to_cpu(desc->max_width) ||
++	    le32_to_cpu(desc->min_height) > le32_to_cpu(desc->max_height))
++		return -EINVAL;
++
++	return 0;
++}
++
++static int gud_status_to_errno(u8 status)
++{
++	switch (status) {
++	case GUD_STATUS_OK:
++		return 0;
++	case GUD_STATUS_BUSY:
++		return -EBUSY;
++	case GUD_STATUS_REQUEST_NOT_SUPPORTED:
++		return -EOPNOTSUPP;
++	case GUD_STATUS_PROTOCOL_ERROR:
++		return -EPROTO;
++	case GUD_STATUS_INVALID_PARAMETER:
++		return -EINVAL;
++	case GUD_STATUS_ERROR:
++		return -EREMOTEIO;
++	default:
++		return -EREMOTEIO;
++	}
++}
++
++static int gud_usb_get_status(struct usb_interface *intf)
++{
++	int ret, status = -EIO;
++	u8 *buf;
++
++	buf = kmalloc(sizeof(*buf), GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	ret = gud_usb_control_msg(intf, true, GUD_REQ_GET_STATUS, 0, buf, sizeof(*buf));
++	if (ret == sizeof(*buf))
++		status = gud_status_to_errno(*buf);
++	kfree(buf);
++
++	if (ret < 0)
++		return ret;
++
++	return status;
++}
++
++static int gud_usb_transfer(struct gud_device *gdrm, bool in, u8 request, u16 index,
++			    void *buf, size_t len)
++{
++	struct usb_interface *intf = to_usb_interface(gdrm->drm.dev);
++	int idx, ret;
++
++	drm_dbg(&gdrm->drm, "%s: request=0x%x index=%u len=%zu\n",
++		in ? "get" : "set", request, index, len);
++
++	if (!drm_dev_enter(&gdrm->drm, &idx))
++		return -ENODEV;
++
++	mutex_lock(&gdrm->ctrl_lock);
++
++	ret = gud_usb_control_msg(intf, in, request, index, buf, len);
++	if (ret == -EPIPE || ((gdrm->flags & GUD_DISPLAY_FLAG_STATUS_ON_SET) && !in && ret >= 0)) {
++		int status;
++
++		status = gud_usb_get_status(intf);
++		if (status < 0) {
++			ret = status;
++		} else if (ret < 0) {
++			dev_err_once(gdrm->drm.dev,
++				     "Unexpected status OK for failed transfer\n");
++			ret = -EPIPE;
++		}
++	}
++
++	if (ret < 0) {
++		drm_dbg(&gdrm->drm, "ret=%d\n", ret);
++		gdrm->stats_num_errors++;
++	}
++
++	mutex_unlock(&gdrm->ctrl_lock);
++	drm_dev_exit(idx);
++
++	return ret;
++}
++
++/*
++ * @buf cannot be allocated on the stack.
++ * Returns number of bytes received or negative error code on failure.
++ */
++int gud_usb_get(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t max_len)
++{
++	return gud_usb_transfer(gdrm, true, request, index, buf, max_len);
++}
++
++/*
++ * @buf can be allocated on the stack or NULL.
++ * Returns zero on success or negative error code on failure.
++ */
++int gud_usb_set(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t len)
++{
++	void *trbuf = NULL;
++	int ret;
++
++	if (buf && len) {
++		trbuf = kmemdup(buf, len, GFP_KERNEL);
++		if (!trbuf)
++			return -ENOMEM;
++	}
++
++	ret = gud_usb_transfer(gdrm, false, request, index, trbuf, len);
++	kfree(trbuf);
++	if (ret < 0)
++		return ret;
++
++	return ret != len ? -EIO : 0;
++}
++
++/*
++ * @val can be allocated on the stack.
++ * Returns zero on success or negative error code on failure.
++ */
++int gud_usb_get_u8(struct gud_device *gdrm, u8 request, u16 index, u8 *val)
++{
++	u8 *buf;
++	int ret;
++
++	buf = kmalloc(sizeof(*val), GFP_KERNEL);
++	if (!buf)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, request, index, buf, sizeof(*val));
++	*val = *buf;
++	kfree(buf);
++	if (ret < 0)
++		return ret;
++
++	return ret != sizeof(*val) ? -EIO : 0;
++}
++
++/* Returns zero on success or negative error code on failure. */
++int gud_usb_set_u8(struct gud_device *gdrm, u8 request, u8 val)
++{
++	return gud_usb_set(gdrm, request, 0, &val, sizeof(val));
++}
++
++static int gud_get_properties(struct gud_device *gdrm)
++{
++	struct gud_property_req *properties;
++	unsigned int i, num_properties;
++	int ret;
++
++	properties = kcalloc(GUD_PROPERTIES_MAX_NUM, sizeof(*properties), GFP_KERNEL);
++	if (!properties)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_PROPERTIES, 0,
++			  properties, GUD_PROPERTIES_MAX_NUM * sizeof(*properties));
++	if (ret <= 0)
++		goto out;
++	if (ret % sizeof(*properties)) {
++		ret = -EIO;
++		goto out;
++	}
++
++	num_properties = ret / sizeof(*properties);
++	ret = 0;
++
++	gdrm->properties = drmm_kcalloc(&gdrm->drm, num_properties, sizeof(*gdrm->properties),
++					GFP_KERNEL);
++	if (!gdrm->properties) {
++		ret = -ENOMEM;
++		goto out;
++	}
++
++	for (i = 0; i < num_properties; i++) {
++		u16 prop = le16_to_cpu(properties[i].prop);
++		u64 val = le64_to_cpu(properties[i].val);
++
++		switch (prop) {
++		case GUD_PROPERTY_ROTATION:
++			/*
++			 * DRM UAPI matches the protocol so use the value directly,
++			 * but mask out any additions on future devices.
++			 */
++			val &= GUD_ROTATION_MASK;
++			ret = drm_plane_create_rotation_property(&gdrm->pipe.plane,
++								 DRM_MODE_ROTATE_0, val);
++			break;
++		default:
++			/* New ones might show up in future devices, skip those we don't know. */
++			drm_dbg(&gdrm->drm, "Ignoring unknown property: %u\n", prop);
++			continue;
++		}
++
++		if (ret)
++			goto out;
++
++		gdrm->properties[gdrm->num_properties++] = prop;
++	}
++out:
++	kfree(properties);
++
++	return ret;
++}
++
++static struct drm_gem_object *gud_gem_create_object(struct drm_device *dev, size_t size)
++{
++	struct drm_gem_shmem_object *shmem;
++
++	shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);
++	if (!shmem)
++		return NULL;
++
++	shmem->map_cached = true;
++
++	return &shmem->base;
++}
++
++/*
++ * FIXME: Dma-buf sharing requires DMA support by the importing device.
++ *        This function is a workaround to make USB devices work as well.
++ *        See todo.rst for how to fix the issue in the dma-buf framework.
++ */
++static struct drm_gem_object *gud_gem_prime_import(struct drm_device *drm, struct dma_buf *dma_buf)
++{
++	struct gud_device *gdrm = to_gud_device(drm);
++
++	if (!gdrm->dmadev)
++		return ERR_PTR(-ENODEV);
++
++	return drm_gem_prime_import_dev(drm, dma_buf, gdrm->dmadev);
++}
++
++static int gud_stats_debugfs(struct seq_file *m, void *data)
++{
++	struct drm_info_node *node = m->private;
++	struct gud_device *gdrm = to_gud_device(node->minor->dev);
++	char buf[10];
++
++	string_get_size(gdrm->bulk_len, 1, STRING_UNITS_2, buf, sizeof(buf));
++	seq_printf(m, "Max buffer size: %s\n", buf);
++	seq_printf(m, "Number of errors:  %u\n", gdrm->stats_num_errors);
++
++	seq_puts(m, "Compression:      ");
++	if (gdrm->compression & GUD_COMPRESSION_LZ4)
++		seq_puts(m, " lz4");
++	if (!gdrm->compression)
++		seq_puts(m, " none");
++	seq_puts(m, "\n");
++
++	if (gdrm->compression) {
++		u64 remainder;
++		u64 ratio = div64_u64_rem(gdrm->stats_length, gdrm->stats_actual_length,
++					  &remainder);
++		u64 ratio_frac = div64_u64(remainder * 10, gdrm->stats_actual_length);
++
++		seq_printf(m, "Compression ratio: %llu.%llu\n", ratio, ratio_frac);
++	}
++
++	return 0;
++}
++
++static const struct drm_info_list gud_debugfs_list[] = {
++	{ "stats", gud_stats_debugfs, 0, NULL },
++};
++
++static void gud_debugfs_init(struct drm_minor *minor)
++{
++	drm_debugfs_create_files(gud_debugfs_list, ARRAY_SIZE(gud_debugfs_list),
++				 minor->debugfs_root, minor);
++}
++
++static const struct drm_simple_display_pipe_funcs gud_pipe_funcs = {
++	.check      = gud_pipe_check,
++	.update	    = gud_pipe_update,
++	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
++};
++
++static const struct drm_mode_config_funcs gud_mode_config_funcs = {
++	.fb_create = drm_gem_fb_create_with_dirty,
++	.atomic_check = drm_atomic_helper_check,
++	.atomic_commit = drm_atomic_helper_commit,
++};
++
++static const u64 gud_pipe_modifiers[] = {
++	DRM_FORMAT_MOD_LINEAR,
++	DRM_FORMAT_MOD_INVALID
++};
++
++DEFINE_DRM_GEM_FOPS(gud_fops);
++
++static struct drm_driver gud_drm_driver = {
++	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
++	.fops			= &gud_fops,
++	DRM_GEM_SHMEM_DRIVER_OPS,
++	.gem_create_object	= gud_gem_create_object,
++	.gem_prime_import	= gud_gem_prime_import,
++	.debugfs_init		= gud_debugfs_init,
++
++	.name			= "gud",
++	.desc			= "Generic USB Display",
++	.date			= "20200422",
++	.major			= 1,
++	.minor			= 0,
++};
++
++static void gud_free_buffers_and_mutex(struct drm_device *drm, void *unused)
++{
++	struct gud_device *gdrm = to_gud_device(drm);
++
++	vfree(gdrm->compress_buf);
++	kfree(gdrm->bulk_buf);
++	mutex_destroy(&gdrm->ctrl_lock);
++	mutex_destroy(&gdrm->damage_lock);
++}
++
++static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id)
++{
++	const struct drm_format_info *xrgb8888_emulation_format = NULL;
++	bool rgb565_supported = false, xrgb8888_supported = false;
++	unsigned int num_formats_dev, num_formats = 0;
++	struct usb_endpoint_descriptor *bulk_out;
++	struct gud_display_descriptor_req desc;
++	struct device *dev = &intf->dev;
++	size_t max_buffer_size = 0;
++	struct gud_device *gdrm;
++	struct drm_device *drm;
++	u8 *formats_dev;
++	u32 *formats;
++	int ret, i;
++
++	ret = usb_find_bulk_out_endpoint(intf->cur_altsetting, &bulk_out);
++	if (ret)
++		return ret;
++
++	ret = gud_get_display_descriptor(intf, &desc);
++	if (ret) {
++		DRM_DEV_DEBUG_DRIVER(dev, "Not a display interface: ret=%d\n", ret);
++		return -ENODEV;
++	}
++
++	if (desc.version > 1) {
++		dev_err(dev, "Protocol version %u is not supported\n", desc.version);
++		return -ENODEV;
++	}
++
++	gdrm = devm_drm_dev_alloc(dev, &gud_drm_driver, struct gud_device, drm);
++	if (IS_ERR(gdrm))
++		return PTR_ERR(gdrm);
++
++	drm = &gdrm->drm;
++	drm->mode_config.funcs = &gud_mode_config_funcs;
++	ret = drmm_mode_config_init(drm);
++	if (ret)
++		return ret;
++
++	gdrm->flags = le32_to_cpu(desc.flags);
++	gdrm->compression = desc.compression & GUD_COMPRESSION_LZ4;
++
++	if (gdrm->flags & GUD_DISPLAY_FLAG_FULL_UPDATE && gdrm->compression)
++		return -EINVAL;
++
++	mutex_init(&gdrm->ctrl_lock);
++	mutex_init(&gdrm->damage_lock);
++	INIT_WORK(&gdrm->work, gud_flush_work);
++	gud_clear_damage(gdrm);
++
++	ret = drmm_add_action_or_reset(drm, gud_free_buffers_and_mutex, NULL);
++	if (ret)
++		return ret;
++
++	drm->mode_config.min_width = le32_to_cpu(desc.min_width);
++	drm->mode_config.max_width = le32_to_cpu(desc.max_width);
++	drm->mode_config.min_height = le32_to_cpu(desc.min_height);
++	drm->mode_config.max_height = le32_to_cpu(desc.max_height);
++
++	formats_dev = devm_kmalloc(dev, GUD_FORMATS_MAX_NUM, GFP_KERNEL);
++	/* Add room for emulated XRGB8888 */
++	formats = devm_kmalloc_array(dev, GUD_FORMATS_MAX_NUM + 1, sizeof(*formats), GFP_KERNEL);
++	if (!formats_dev || !formats)
++		return -ENOMEM;
++
++	ret = gud_usb_get(gdrm, GUD_REQ_GET_FORMATS, 0, formats_dev, GUD_FORMATS_MAX_NUM);
++	if (ret < 0)
++		return ret;
++
++	num_formats_dev = ret;
++	for (i = 0; i < num_formats_dev; i++) {
++		const struct drm_format_info *info;
++		size_t fmt_buf_size;
++		u32 format;
++
++		format = gud_to_fourcc(formats_dev[i]);
++		if (!format) {
++			drm_dbg(drm, "Unsupported format: 0x%02x\n", formats_dev[i]);
++			continue;
++		}
++
++		if (format == GUD_DRM_FORMAT_R1)
++			info = &gud_drm_format_r1;
++		else if (format == GUD_DRM_FORMAT_XRGB1111)
++			info = &gud_drm_format_xrgb1111;
++		else
++			info = drm_format_info(format);
++
++		switch (format) {
++		case GUD_DRM_FORMAT_R1:
++			fallthrough;
++		case GUD_DRM_FORMAT_XRGB1111:
++			if (!xrgb8888_emulation_format)
++				xrgb8888_emulation_format = info;
++			break;
++		case DRM_FORMAT_RGB565:
++			rgb565_supported = true;
++			if (!xrgb8888_emulation_format)
++				xrgb8888_emulation_format = info;
++			break;
++		case DRM_FORMAT_XRGB8888:
++			xrgb8888_supported = true;
++			break;
++		};
++
++		fmt_buf_size = drm_format_info_min_pitch(info, 0, drm->mode_config.max_width) *
++			       drm->mode_config.max_height;
++		max_buffer_size = max(max_buffer_size, fmt_buf_size);
++
++		if (format == GUD_DRM_FORMAT_R1 || format == GUD_DRM_FORMAT_XRGB1111)
++			continue; /* Internal not for userspace */
++
++		formats[num_formats++] = format;
++	}
++
++	if (!num_formats && !xrgb8888_emulation_format) {
++		dev_err(dev, "No supported pixel formats found\n");
++		return -EINVAL;
++	}
++
++	/* Prefer speed over color depth */
++	if (rgb565_supported)
++		drm->mode_config.preferred_depth = 16;
++
++	if (!xrgb8888_supported && xrgb8888_emulation_format) {
++		gdrm->xrgb8888_emulation_format = xrgb8888_emulation_format;
++		formats[num_formats++] = DRM_FORMAT_XRGB8888;
++	}
++
++	if (desc.max_buffer_size)
++		max_buffer_size = le32_to_cpu(desc.max_buffer_size);
++retry:
++	/*
++	 * Use plain kmalloc here since devm_kmalloc() places struct devres at the beginning
++	 * of the buffer it allocates. This wastes a lot of memory when allocating big buffers.
++	 * Asking for 2M would actually allocate 4M. This would also prevent getting the biggest
++	 * possible buffer potentially leading to split transfers.
++	 */
++	gdrm->bulk_buf = kmalloc(max_buffer_size, GFP_KERNEL | __GFP_NOWARN);
++	if (!gdrm->bulk_buf) {
++		max_buffer_size = roundup_pow_of_two(max_buffer_size) / 2;
++		if (max_buffer_size < SZ_512K)
++			return -ENOMEM;
++		goto retry;
++	}
++
++	gdrm->bulk_pipe = usb_sndbulkpipe(interface_to_usbdev(intf), usb_endpoint_num(bulk_out));
++	gdrm->bulk_len = max_buffer_size;
++
++	if (gdrm->compression & GUD_COMPRESSION_LZ4) {
++		gdrm->lz4_comp_mem = devm_kmalloc(dev, LZ4_MEM_COMPRESS, GFP_KERNEL);
++		if (!gdrm->lz4_comp_mem)
++			return -ENOMEM;
++
++		gdrm->compress_buf = vmalloc(gdrm->bulk_len);
++		if (!gdrm->compress_buf)
++			return -ENOMEM;
++	}
++
++	ret = drm_simple_display_pipe_init(drm, &gdrm->pipe, &gud_pipe_funcs,
++					   formats, num_formats,
++					   gud_pipe_modifiers, NULL);
++	if (ret)
++		return ret;
++
++	devm_kfree(dev, formats);
++	devm_kfree(dev, formats_dev);
++
++	ret = gud_get_properties(gdrm);
++	if (ret) {
++		dev_err(dev, "Failed to get properties (error=%d)\n", ret);
++		return ret;
++	}
++
++	drm_plane_enable_fb_damage_clips(&gdrm->pipe.plane);
++
++	ret = gud_get_connectors(gdrm);
++	if (ret) {
++		dev_err(dev, "Failed to get connectors (error=%d)\n", ret);
++		return ret;
++	}
++
++	drm_mode_config_reset(drm);
++
++	usb_set_intfdata(intf, gdrm);
++
++	gdrm->dmadev = usb_intf_get_dma_device(intf);
++	if (!gdrm->dmadev)
++		dev_warn(dev, "buffer sharing not supported");
++
++	ret = drm_dev_register(drm, 0);
++	if (ret) {
++		put_device(gdrm->dmadev);
++		return ret;
++	}
++
++	drm_kms_helper_poll_init(drm);
++
++	drm_fbdev_generic_setup(drm, 0);
++
++	return 0;
++}
++
++static void gud_disconnect(struct usb_interface *interface)
++{
++	struct gud_device *gdrm = usb_get_intfdata(interface);
++	struct drm_device *drm = &gdrm->drm;
++
++	drm_dbg(drm, "%s:\n", __func__);
++
++	drm_kms_helper_poll_fini(drm);
++	drm_dev_unplug(drm);
++	drm_atomic_helper_shutdown(drm);
++	put_device(gdrm->dmadev);
++	gdrm->dmadev = NULL;
++}
++
++static int gud_suspend(struct usb_interface *intf, pm_message_t message)
++{
++	struct gud_device *gdrm = usb_get_intfdata(intf);
++
++	return drm_mode_config_helper_suspend(&gdrm->drm);
++}
++
++static int gud_resume(struct usb_interface *intf)
++{
++	struct gud_device *gdrm = usb_get_intfdata(intf);
++
++	drm_mode_config_helper_resume(&gdrm->drm);
++
++	return 0;
++}
++
++static const struct usb_device_id gud_id_table[] = {
++	{ USB_DEVICE_INTERFACE_CLASS(0x1d50, 0x614d, USB_CLASS_VENDOR_SPEC) },
++	{ }
++};
++
++MODULE_DEVICE_TABLE(usb, gud_id_table);
++
++static struct usb_driver gud_usb_driver = {
++	.name		= "gud",
++	.probe		= gud_probe,
++	.disconnect	= gud_disconnect,
++	.id_table	= gud_id_table,
++	.suspend	= gud_suspend,
++	.resume		= gud_resume,
++	.reset_resume	= gud_resume,
++};
++
++module_usb_driver(gud_usb_driver);
++
++MODULE_AUTHOR("Noralf Trønnes");
++MODULE_LICENSE("Dual MIT/GPL");
+--- /dev/null
++++ b/drivers/gpu/drm/gud/gud_internal.h
+@@ -0,0 +1,154 @@
++/* SPDX-License-Identifier: MIT */
++
++#ifndef __LINUX_GUD_INTERNAL_H
++#define __LINUX_GUD_INTERNAL_H
++
++#include <linux/list.h>
++#include <linux/mutex.h>
++#include <linux/usb.h>
++#include <linux/workqueue.h>
++#include <uapi/drm/drm_fourcc.h>
++
++#include <drm/drm_modes.h>
++#include <drm/drm_simple_kms_helper.h>
++
++struct gud_device {
++	struct drm_device drm;
++	struct drm_simple_display_pipe pipe;
++	struct device *dmadev;
++	struct work_struct work;
++	u32 flags;
++	const struct drm_format_info *xrgb8888_emulation_format;
++
++	u16 *properties;
++	unsigned int num_properties;
++
++	unsigned int bulk_pipe;
++	void *bulk_buf;
++	size_t bulk_len;
++
++	u8 compression;
++	void *lz4_comp_mem;
++	void *compress_buf;
++
++	u64 stats_length;
++	u64 stats_actual_length;
++	unsigned int stats_num_errors;
++
++	struct mutex ctrl_lock; /* Serialize get/set and status transfers */
++
++	struct mutex damage_lock; /* Protects the following members: */
++	struct drm_framebuffer *fb;
++	struct drm_rect damage;
++	bool prev_flush_failed;
++};
++
++static inline struct gud_device *to_gud_device(struct drm_device *drm)
++{
++	return container_of(drm, struct gud_device, drm);
++}
++
++static inline struct usb_device *gud_to_usb_device(struct gud_device *gdrm)
++{
++	return interface_to_usbdev(to_usb_interface(gdrm->drm.dev));
++}
++
++int gud_usb_get(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t len);
++int gud_usb_set(struct gud_device *gdrm, u8 request, u16 index, void *buf, size_t len);
++int gud_usb_get_u8(struct gud_device *gdrm, u8 request, u16 index, u8 *val);
++int gud_usb_set_u8(struct gud_device *gdrm, u8 request, u8 val);
++
++void gud_clear_damage(struct gud_device *gdrm);
++void gud_flush_work(struct work_struct *work);
++int gud_pipe_check(struct drm_simple_display_pipe *pipe,
++		   struct drm_plane_state *new_plane_state,
++		   struct drm_crtc_state *new_crtc_state);
++void gud_pipe_update(struct drm_simple_display_pipe *pipe,
++		     struct drm_plane_state *old_state);
++int gud_connector_fill_properties(struct drm_connector_state *connector_state,
++				  struct gud_property_req *properties);
++int gud_get_connectors(struct gud_device *gdrm);
++
++/* Driver internal fourcc transfer formats */
++#define GUD_DRM_FORMAT_R1		0x00000122
++#define GUD_DRM_FORMAT_XRGB1111		0x03121722
++
++static inline u8 gud_from_fourcc(u32 fourcc)
++{
++	switch (fourcc) {
++	case GUD_DRM_FORMAT_R1:
++		return GUD_PIXEL_FORMAT_R1;
++	case GUD_DRM_FORMAT_XRGB1111:
++		return GUD_PIXEL_FORMAT_XRGB1111;
++	case DRM_FORMAT_RGB565:
++		return GUD_PIXEL_FORMAT_RGB565;
++	case DRM_FORMAT_XRGB8888:
++		return GUD_PIXEL_FORMAT_XRGB8888;
++	case DRM_FORMAT_ARGB8888:
++		return GUD_PIXEL_FORMAT_ARGB8888;
++	};
++
++	return 0;
++}
++
++static inline u32 gud_to_fourcc(u8 format)
++{
++	switch (format) {
++	case GUD_PIXEL_FORMAT_R1:
++		return GUD_DRM_FORMAT_R1;
++	case GUD_PIXEL_FORMAT_XRGB1111:
++		return GUD_DRM_FORMAT_XRGB1111;
++	case GUD_PIXEL_FORMAT_RGB565:
++		return DRM_FORMAT_RGB565;
++	case GUD_PIXEL_FORMAT_XRGB8888:
++		return DRM_FORMAT_XRGB8888;
++	case GUD_PIXEL_FORMAT_ARGB8888:
++		return DRM_FORMAT_ARGB8888;
++	};
++
++	return 0;
++}
++
++static inline void gud_from_display_mode(struct gud_display_mode_req *dst,
++					 const struct drm_display_mode *src)
++{
++	u32 flags = src->flags & GUD_DISPLAY_MODE_FLAG_USER_MASK;
++
++	if (src->type & DRM_MODE_TYPE_PREFERRED)
++		flags |= GUD_DISPLAY_MODE_FLAG_PREFERRED;
++
++	dst->clock = cpu_to_le32(src->clock);
++	dst->hdisplay = cpu_to_le16(src->hdisplay);
++	dst->hsync_start = cpu_to_le16(src->hsync_start);
++	dst->hsync_end = cpu_to_le16(src->hsync_end);
++	dst->htotal = cpu_to_le16(src->htotal);
++	dst->vdisplay = cpu_to_le16(src->vdisplay);
++	dst->vsync_start = cpu_to_le16(src->vsync_start);
++	dst->vsync_end = cpu_to_le16(src->vsync_end);
++	dst->vtotal = cpu_to_le16(src->vtotal);
++	dst->flags = cpu_to_le32(flags);
++}
++
++static inline void gud_to_display_mode(struct drm_display_mode *dst,
++				       const struct gud_display_mode_req *src)
++{
++	u32 flags = le32_to_cpu(src->flags);
++
++	memset(dst, 0, sizeof(*dst));
++	dst->clock = le32_to_cpu(src->clock);
++	dst->hdisplay = le16_to_cpu(src->hdisplay);
++	dst->hsync_start = le16_to_cpu(src->hsync_start);
++	dst->hsync_end = le16_to_cpu(src->hsync_end);
++	dst->htotal = le16_to_cpu(src->htotal);
++	dst->vdisplay = le16_to_cpu(src->vdisplay);
++	dst->vsync_start = le16_to_cpu(src->vsync_start);
++	dst->vsync_end = le16_to_cpu(src->vsync_end);
++	dst->vtotal = le16_to_cpu(src->vtotal);
++	dst->flags = flags & GUD_DISPLAY_MODE_FLAG_USER_MASK;
++	dst->type = DRM_MODE_TYPE_DRIVER;
++	if (flags & GUD_DISPLAY_MODE_FLAG_PREFERRED)
++		dst->type |= DRM_MODE_TYPE_PREFERRED;
++	drm_mode_set_name(dst);
++}
++
++#endif
+--- /dev/null
++++ b/drivers/gpu/drm/gud/gud_pipe.c
+@@ -0,0 +1,551 @@
++// SPDX-License-Identifier: MIT
++/*
++ * Copyright 2020 Noralf Trønnes
++ */
++
++#include <linux/dma-buf.h>
++#include <linux/lz4.h>
++#include <linux/usb.h>
++#include <linux/workqueue.h>
++
++#include <drm/drm_atomic.h>
++#include <drm/drm_connector.h>
++#include <drm/drm_damage_helper.h>
++#include <drm/drm_drv.h>
++#include <drm/drm_format_helper.h>
++#include <drm/drm_fourcc.h>
++#include <drm/drm_framebuffer.h>
++#include <drm/drm_gem_shmem_helper.h>
++#include <drm/drm_print.h>
++#include <drm/drm_rect.h>
++#include <drm/drm_simple_kms_helper.h>
++#include <drm/gud.h>
++
++#include "gud_internal.h"
++
++/*
++ * FIXME: The driver is probably broken on Big Endian machines.
++ * See discussion:
++ * https://lore.kernel.org/dri-devel/CAKb7UvihLX0hgBOP3VBG7O+atwZcUVCPVuBdfmDMpg0NjXe-cQ@mail.gmail.com/
++ */
++
++static bool gud_is_big_endian(void)
++{
++#if defined(__BIG_ENDIAN)
++	return true;
++#else
++	return false;
++#endif
++}
++
++static size_t gud_xrgb8888_to_r124(u8 *dst, const struct drm_format_info *format,
++				   void *src, struct drm_framebuffer *fb,
++				   struct drm_rect *rect)
++{
++	unsigned int block_width = drm_format_info_block_width(format, 0);
++	unsigned int bits_per_pixel = 8 / block_width;
++	unsigned int x, y, width, height;
++	u8 pix, *pix8, *block = dst; /* Assign to silence compiler warning */
++	size_t len;
++	void *buf;
++
++	WARN_ON_ONCE(format->char_per_block[0] != 1);
++
++	/* Start on a byte boundary */
++	rect->x1 = ALIGN_DOWN(rect->x1, block_width);
++	width = drm_rect_width(rect);
++	height = drm_rect_height(rect);
++	len = drm_format_info_min_pitch(format, 0, width) * height;
++
++	buf = kmalloc(width * height, GFP_KERNEL);
++	if (!buf)
++		return 0;
++
++	drm_fb_xrgb8888_to_gray8(buf, src, fb, rect);
++	pix8 = buf;
++
++	for (y = 0; y < height; y++) {
++		for (x = 0; x < width; x++) {
++			unsigned int pixpos = x % block_width; /* within byte from the left */
++			unsigned int pixshift = (block_width - pixpos - 1) * bits_per_pixel;
++
++			if (!pixpos) {
++				block = dst++;
++				*block = 0;
++			}
++
++			pix = (*pix8++) >> (8 - bits_per_pixel);
++			*block |= pix << pixshift;
++		}
++	}
++
++	kfree(buf);
++
++	return len;
++}
++
++static size_t gud_xrgb8888_to_color(u8 *dst, const struct drm_format_info *format,
++				    void *src, struct drm_framebuffer *fb,
++				    struct drm_rect *rect)
++{
++	unsigned int block_width = drm_format_info_block_width(format, 0);
++	unsigned int bits_per_pixel = 8 / block_width;
++	u8 r, g, b, pix, *block = dst; /* Assign to silence compiler warning */
++	unsigned int x, y, width;
++	u32 *pix32;
++	size_t len;
++
++	/* Start on a byte boundary */
++	rect->x1 = ALIGN_DOWN(rect->x1, block_width);
++	width = drm_rect_width(rect);
++	len = drm_format_info_min_pitch(format, 0, width) * drm_rect_height(rect);
++
++	for (y = rect->y1; y < rect->y2; y++) {
++		pix32 = src + (y * fb->pitches[0]);
++		pix32 += rect->x1;
++
++		for (x = 0; x < width; x++) {
++			unsigned int pixpos = x % block_width; /* within byte from the left */
++			unsigned int pixshift = (block_width - pixpos - 1) * bits_per_pixel;
++
++			if (!pixpos) {
++				block = dst++;
++				*block = 0;
++			}
++
++			r = *pix32 >> 16;
++			g = *pix32 >> 8;
++			b = *pix32++;
++
++			switch (format->format) {
++			case GUD_DRM_FORMAT_XRGB1111:
++				pix = ((r >> 7) << 2) | ((g >> 7) << 1) | (b >> 7);
++				break;
++			default:
++				WARN_ON_ONCE(1);
++				return len;
++			};
++
++			*block |= pix << pixshift;
++		}
++	}
++
++	return len;
++}
++
++static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
++			  const struct drm_format_info *format, struct drm_rect *rect,
++			  struct gud_set_buffer_req *req)
++{
++	struct dma_buf_attachment *import_attach = fb->obj[0]->import_attach;
++	u8 compression = gdrm->compression;
++	void *vmap, *vaddr, *buf;
++	size_t pitch, len;
++	int ret = 0;
++
++	pitch = drm_format_info_min_pitch(format, 0, drm_rect_width(rect));
++	len = pitch * drm_rect_height(rect);
++	if (len > gdrm->bulk_len)
++		return -E2BIG;
++
++	vmap = drm_gem_shmem_vmap(fb->obj[0]);
++	if (!vmap)
++		return -ENOMEM;
++
++	vaddr = vmap + fb->offsets[0];
++
++	if (import_attach) {
++		ret = dma_buf_begin_cpu_access(import_attach->dmabuf, DMA_FROM_DEVICE);
++		if (ret)
++			goto vunmap;
++	}
++retry:
++	if (compression)
++		buf = gdrm->compress_buf;
++	else
++		buf = gdrm->bulk_buf;
++
++	/*
++	 * Imported buffers are assumed to be write-combined and thus uncached
++	 * with slow reads (at least on ARM).
++	 */
++	if (format != fb->format) {
++		if (format->format == GUD_DRM_FORMAT_R1) {
++			len = gud_xrgb8888_to_r124(buf, format, vaddr, fb, rect);
++			if (!len) {
++				ret = -ENOMEM;
++				goto end_cpu_access;
++			}
++		} else if (format->format == DRM_FORMAT_RGB565) {
++			drm_fb_xrgb8888_to_rgb565(buf, vaddr, fb, rect, gud_is_big_endian());
++		} else {
++			len = gud_xrgb8888_to_color(buf, format, vaddr, fb, rect);
++		}
++	} else if (gud_is_big_endian() && format->cpp[0] > 1) {
++		drm_fb_swab(buf, vaddr, fb, rect, !import_attach);
++	} else if (compression && !import_attach && pitch == fb->pitches[0]) {
++		/* can compress directly from the framebuffer */
++		buf = vaddr + rect->y1 * pitch;
++	} else {
++		drm_fb_memcpy(buf, vaddr, fb, rect);
++	}
++
++	memset(req, 0, sizeof(*req));
++	req->x = cpu_to_le32(rect->x1);
++	req->y = cpu_to_le32(rect->y1);
++	req->width = cpu_to_le32(drm_rect_width(rect));
++	req->height = cpu_to_le32(drm_rect_height(rect));
++	req->length = cpu_to_le32(len);
++
++	if (compression & GUD_COMPRESSION_LZ4) {
++		int complen;
++
++		complen = LZ4_compress_default(buf, gdrm->bulk_buf, len, len, gdrm->lz4_comp_mem);
++		if (complen <= 0) {
++			compression = 0;
++			goto retry;
++		}
++
++		req->compression = GUD_COMPRESSION_LZ4;
++		req->compressed_length = cpu_to_le32(complen);
++	}
++
++end_cpu_access:
++	if (import_attach)
++		dma_buf_end_cpu_access(import_attach->dmabuf, DMA_FROM_DEVICE);
++vunmap:
++	drm_gem_shmem_vunmap(fb->obj[0], vmap);
++
++	return ret;
++}
++
++static int gud_flush_rect(struct gud_device *gdrm, struct drm_framebuffer *fb,
++			  const struct drm_format_info *format, struct drm_rect *rect)
++{
++	struct usb_device *usb = gud_to_usb_device(gdrm);
++	struct gud_set_buffer_req req;
++	int ret, actual_length;
++	size_t len, trlen;
++
++	drm_dbg(&gdrm->drm, "Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
++
++	ret = gud_prep_flush(gdrm, fb, format, rect, &req);
++	if (ret)
++		return ret;
++
++	len = le32_to_cpu(req.length);
++
++	if (req.compression)
++		trlen = le32_to_cpu(req.compressed_length);
++	else
++		trlen = len;
++
++	gdrm->stats_length += len;
++	/* Did it wrap around? */
++	if (gdrm->stats_length <= len && gdrm->stats_actual_length) {
++		gdrm->stats_length = len;
++		gdrm->stats_actual_length = 0;
++	}
++	gdrm->stats_actual_length += trlen;
++
++	if (!(gdrm->flags & GUD_DISPLAY_FLAG_FULL_UPDATE) || gdrm->prev_flush_failed) {
++		ret = gud_usb_set(gdrm, GUD_REQ_SET_BUFFER, 0, &req, sizeof(req));
++		if (ret)
++			return ret;
++	}
++
++	ret = usb_bulk_msg(usb, gdrm->bulk_pipe, gdrm->bulk_buf, trlen,
++			   &actual_length, msecs_to_jiffies(3000));
++	if (!ret && trlen != actual_length)
++		ret = -EIO;
++	if (ret)
++		gdrm->stats_num_errors++;
++
++	return ret;
++}
++
++void gud_clear_damage(struct gud_device *gdrm)
++{
++	gdrm->damage.x1 = INT_MAX;
++	gdrm->damage.y1 = INT_MAX;
++	gdrm->damage.x2 = 0;
++	gdrm->damage.y2 = 0;
++}
++
++static void gud_add_damage(struct gud_device *gdrm, struct drm_rect *damage)
++{
++	gdrm->damage.x1 = min(gdrm->damage.x1, damage->x1);
++	gdrm->damage.y1 = min(gdrm->damage.y1, damage->y1);
++	gdrm->damage.x2 = max(gdrm->damage.x2, damage->x2);
++	gdrm->damage.y2 = max(gdrm->damage.y2, damage->y2);
++}
++
++static void gud_retry_failed_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
++				   struct drm_rect *damage)
++{
++	/*
++	 * pipe_update waits for the worker when the display mode is going to change.
++	 * This ensures that the width and height is still the same making it safe to
++	 * add back the damage.
++	 */
++
++	mutex_lock(&gdrm->damage_lock);
++	if (!gdrm->fb) {
++		drm_framebuffer_get(fb);
++		gdrm->fb = fb;
++	}
++	gud_add_damage(gdrm, damage);
++	mutex_unlock(&gdrm->damage_lock);
++
++	/* Retry only once to avoid a possible storm in case of continues errors. */
++	if (!gdrm->prev_flush_failed)
++		queue_work(system_long_wq, &gdrm->work);
++	gdrm->prev_flush_failed = true;
++}
++
++void gud_flush_work(struct work_struct *work)
++{
++	struct gud_device *gdrm = container_of(work, struct gud_device, work);
++	const struct drm_format_info *format;
++	struct drm_framebuffer *fb;
++	struct drm_rect damage;
++	unsigned int i, lines;
++	int idx, ret = 0;
++	size_t pitch;
++
++	if (!drm_dev_enter(&gdrm->drm, &idx))
++		return;
++
++	mutex_lock(&gdrm->damage_lock);
++	fb = gdrm->fb;
++	gdrm->fb = NULL;
++	damage = gdrm->damage;
++	gud_clear_damage(gdrm);
++	mutex_unlock(&gdrm->damage_lock);
++
++	if (!fb)
++		goto out;
++
++	format = fb->format;
++	if (format->format == DRM_FORMAT_XRGB8888 && gdrm->xrgb8888_emulation_format)
++		format = gdrm->xrgb8888_emulation_format;
++
++	/* Split update if it's too big */
++	pitch = drm_format_info_min_pitch(format, 0, drm_rect_width(&damage));
++	lines = drm_rect_height(&damage);
++
++	if (gdrm->bulk_len < lines * pitch)
++		lines = gdrm->bulk_len / pitch;
++
++	for (i = 0; i < DIV_ROUND_UP(drm_rect_height(&damage), lines); i++) {
++		struct drm_rect rect = damage;
++
++		rect.y1 += i * lines;
++		rect.y2 = min_t(u32, rect.y1 + lines, damage.y2);
++
++		ret = gud_flush_rect(gdrm, fb, format, &rect);
++		if (ret) {
++			if (ret != -ENODEV && ret != -ECONNRESET &&
++			    ret != -ESHUTDOWN && ret != -EPROTO) {
++				bool prev_flush_failed = gdrm->prev_flush_failed;
++
++				gud_retry_failed_flush(gdrm, fb, &damage);
++				if (!prev_flush_failed)
++					dev_err_ratelimited(fb->dev->dev,
++							    "Failed to flush framebuffer: error=%d\n", ret);
++			}
++			break;
++		}
++
++		gdrm->prev_flush_failed = false;
++	}
++
++	drm_framebuffer_put(fb);
++out:
++	drm_dev_exit(idx);
++}
++
++static void gud_fb_queue_damage(struct gud_device *gdrm, struct drm_framebuffer *fb,
++				struct drm_rect *damage)
++{
++	struct drm_framebuffer *old_fb = NULL;
++
++	mutex_lock(&gdrm->damage_lock);
++
++	if (fb != gdrm->fb) {
++		old_fb = gdrm->fb;
++		drm_framebuffer_get(fb);
++		gdrm->fb = fb;
++	}
++
++	gud_add_damage(gdrm, damage);
++
++	mutex_unlock(&gdrm->damage_lock);
++
++	queue_work(system_long_wq, &gdrm->work);
++
++	if (old_fb)
++		drm_framebuffer_put(old_fb);
++}
++
++int gud_pipe_check(struct drm_simple_display_pipe *pipe,
++		   struct drm_plane_state *new_plane_state,
++		   struct drm_crtc_state *new_crtc_state)
++{
++	struct gud_device *gdrm = to_gud_device(pipe->crtc.dev);
++	struct drm_plane_state *old_plane_state = pipe->plane.state;
++	const struct drm_display_mode *mode = &new_crtc_state->mode;
++	struct drm_atomic_state *state = new_plane_state->state;
++	struct drm_framebuffer *old_fb = old_plane_state->fb;
++	struct drm_connector_state *connector_state = NULL;
++	struct drm_framebuffer *fb = new_plane_state->fb;
++	const struct drm_format_info *format = fb->format;
++	struct drm_connector *connector;
++	unsigned int i, num_properties;
++	struct gud_state_req *req;
++	int idx, ret;
++	size_t len;
++
++	if (WARN_ON_ONCE(!fb))
++		return -EINVAL;
++
++	if (old_plane_state->rotation != new_plane_state->rotation)
++		new_crtc_state->mode_changed = true;
++
++	if (old_fb && old_fb->format != format)
++		new_crtc_state->mode_changed = true;
++
++	if (!new_crtc_state->mode_changed && !new_crtc_state->connectors_changed)
++		return 0;
++
++	/* Only one connector is supported */
++	if (hweight32(new_crtc_state->connector_mask) != 1)
++		return -EINVAL;
++
++	if (format->format == DRM_FORMAT_XRGB8888 && gdrm->xrgb8888_emulation_format)
++		format = gdrm->xrgb8888_emulation_format;
++
++	for_each_new_connector_in_state(state, connector, connector_state, i) {
++		if (connector_state->crtc)
++			break;
++	}
++
++	/*
++	 * DRM_IOCTL_MODE_OBJ_SETPROPERTY on the rotation property will not have
++	 * the connector included in the state.
++	 */
++	if (!connector_state) {
++		struct drm_connector_list_iter conn_iter;
++
++		drm_connector_list_iter_begin(pipe->crtc.dev, &conn_iter);
++		drm_for_each_connector_iter(connector, &conn_iter) {
++			if (connector->state->crtc) {
++				connector_state = connector->state;
++				break;
++			}
++		}
++		drm_connector_list_iter_end(&conn_iter);
++	}
++
++	if (WARN_ON_ONCE(!connector_state))
++		return -ENOENT;
++
++	len = struct_size(req, properties,
++			  GUD_PROPERTIES_MAX_NUM + GUD_CONNECTOR_PROPERTIES_MAX_NUM);
++	req = kzalloc(len, GFP_KERNEL);
++	if (!req)
++		return -ENOMEM;
++
++	gud_from_display_mode(&req->mode, mode);
++
++	req->format = gud_from_fourcc(format->format);
++	if (WARN_ON_ONCE(!req->format)) {
++		ret = -EINVAL;
++		goto out;
++	}
++
++	req->connector = drm_connector_index(connector_state->connector);
++
++	ret = gud_connector_fill_properties(connector_state, req->properties);
++	if (ret < 0)
++		goto out;
++
++	num_properties = ret;
++	for (i = 0; i < gdrm->num_properties; i++) {
++		u16 prop = gdrm->properties[i];
++		u64 val;
++
++		switch (prop) {
++		case GUD_PROPERTY_ROTATION:
++			/* DRM UAPI matches the protocol so use value directly */
++			val = new_plane_state->rotation;
++			break;
++		default:
++			WARN_ON_ONCE(1);
++			ret = -EINVAL;
++			goto out;
++		}
++
++		req->properties[num_properties + i].prop = cpu_to_le16(prop);
++		req->properties[num_properties + i].val = cpu_to_le64(val);
++		num_properties++;
++	}
++
++	if (drm_dev_enter(fb->dev, &idx)) {
++		len = struct_size(req, properties, num_properties);
++		ret = gud_usb_set(gdrm, GUD_REQ_SET_STATE_CHECK, 0, req, len);
++		drm_dev_exit(idx);
++	}  else {
++		ret = -ENODEV;
++	}
++out:
++	kfree(req);
++
++	return ret;
++}
++
++void gud_pipe_update(struct drm_simple_display_pipe *pipe,
++		     struct drm_plane_state *old_state)
++{
++	struct drm_device *drm = pipe->crtc.dev;
++	struct gud_device *gdrm = to_gud_device(drm);
++	struct drm_plane_state *state = pipe->plane.state;
++	struct drm_framebuffer *fb = state->fb;
++	struct drm_crtc *crtc = &pipe->crtc;
++	struct drm_rect damage;
++	int idx;
++
++	if (crtc->state->mode_changed || !crtc->state->enable) {
++		cancel_work_sync(&gdrm->work);
++		mutex_lock(&gdrm->damage_lock);
++		if (gdrm->fb) {
++			drm_framebuffer_put(gdrm->fb);
++			gdrm->fb = NULL;
++		}
++		gud_clear_damage(gdrm);
++		mutex_unlock(&gdrm->damage_lock);
++	}
++
++	if (!drm_dev_enter(drm, &idx))
++		return;
++
++	if (!old_state->fb)
++		gud_usb_set_u8(gdrm, GUD_REQ_SET_CONTROLLER_ENABLE, 1);
++
++	if (fb && (crtc->state->mode_changed || crtc->state->connectors_changed))
++		gud_usb_set(gdrm, GUD_REQ_SET_STATE_COMMIT, 0, NULL, 0);
++
++	if (crtc->state->active_changed)
++		gud_usb_set_u8(gdrm, GUD_REQ_SET_DISPLAY_ENABLE, crtc->state->active);
++
++	if (drm_atomic_helper_damage_merged(old_state, state, &damage)) {
++		if (gdrm->flags & GUD_DISPLAY_FLAG_FULL_UPDATE)
++			drm_rect_init(&damage, 0, 0, fb->width, fb->height);
++		gud_fb_queue_damage(gdrm, fb, &damage);
++	}
++
++	if (!crtc->state->enable)
++		gud_usb_set_u8(gdrm, GUD_REQ_SET_CONTROLLER_ENABLE, 0);
++
++	drm_dev_exit(idx);
++}
+--- /dev/null
++++ b/include/drm/gud.h
+@@ -0,0 +1,333 @@
++/* SPDX-License-Identifier: MIT */
++/*
++ * Copyright 2020 Noralf Trønnes
++ */
++
++#ifndef __LINUX_GUD_H
++#define __LINUX_GUD_H
++
++#include <linux/types.h>
++
++/*
++ * struct gud_display_descriptor_req - Display descriptor
++ * @magic: Magic value GUD_DISPLAY_MAGIC
++ * @version: Protocol version
++ * @flags: Flags
++ *         - STATUS_ON_SET: Always do a status request after a SET request.
++ *                          This is used by the Linux gadget driver since it has
++ *                          no way to control the status stage of a control OUT
++ *                          request that has a payload.
++ *         - FULL_UPDATE:   Always send the entire framebuffer when flushing changes.
++ *                          The GUD_REQ_SET_BUFFER request will not be sent
++ *                          before each bulk transfer, it will only be sent if the
++ *                          previous bulk transfer had failed. This gives the device
++ *                          a chance to reset its state machine if needed.
++ *                          This flag can not be used in combination with compression.
++ * @compression: Supported compression types
++ *               - GUD_COMPRESSION_LZ4: LZ4 lossless compression.
++ * @max_buffer_size: Maximum buffer size the device can handle (optional).
++ *                   This is useful for devices that don't have a big enough
++ *                   buffer to decompress the entire framebuffer in one go.
++ * @min_width: Minimum pixel width the controller can handle
++ * @max_width: Maximum width
++ * @min_height: Minimum height
++ * @max_height: Maximum height
++ *
++ * Devices that have only one display mode will have min_width == max_width
++ * and min_height == max_height.
++ */
++struct gud_display_descriptor_req {
++	__le32 magic;
++#define GUD_DISPLAY_MAGIC			0x1d50614d
++	__u8 version;
++	__le32 flags;
++#define GUD_DISPLAY_FLAG_STATUS_ON_SET		BIT(0)
++#define GUD_DISPLAY_FLAG_FULL_UPDATE		BIT(1)
++	__u8 compression;
++#define GUD_COMPRESSION_LZ4			BIT(0)
++	__le32 max_buffer_size;
++	__le32 min_width;
++	__le32 max_width;
++	__le32 min_height;
++	__le32 max_height;
++} __packed;
++
++/*
++ * struct gud_property_req - Property
++ * @prop: Property
++ * @val: Value
++ */
++struct gud_property_req {
++	__le16 prop;
++	__le64 val;
++} __packed;
++
++/*
++ * struct gud_display_mode_req - Display mode
++ * @clock: Pixel clock in kHz
++ * @hdisplay: Horizontal display size
++ * @hsync_start: Horizontal sync start
++ * @hsync_end: Horizontal sync end
++ * @htotal: Horizontal total size
++ * @vdisplay: Vertical display size
++ * @vsync_start: Vertical sync start
++ * @vsync_end: Vertical sync end
++ * @vtotal: Vertical total size
++ * @flags: Bits 0-13 are the same as in the RandR protocol and also what DRM uses.
++ *         The deprecated bits are reused for internal protocol flags leaving us
++ *         free to follow DRM for the other bits in the future.
++ *         - FLAG_PREFERRED: Set on the preferred display mode.
++ */
++struct gud_display_mode_req {
++	__le32 clock;
++	__le16 hdisplay;
++	__le16 hsync_start;
++	__le16 hsync_end;
++	__le16 htotal;
++	__le16 vdisplay;
++	__le16 vsync_start;
++	__le16 vsync_end;
++	__le16 vtotal;
++	__le32 flags;
++#define GUD_DISPLAY_MODE_FLAG_PHSYNC		BIT(0)
++#define GUD_DISPLAY_MODE_FLAG_NHSYNC		BIT(1)
++#define GUD_DISPLAY_MODE_FLAG_PVSYNC		BIT(2)
++#define GUD_DISPLAY_MODE_FLAG_NVSYNC		BIT(3)
++#define GUD_DISPLAY_MODE_FLAG_INTERLACE		BIT(4)
++#define GUD_DISPLAY_MODE_FLAG_DBLSCAN		BIT(5)
++#define GUD_DISPLAY_MODE_FLAG_CSYNC		BIT(6)
++#define GUD_DISPLAY_MODE_FLAG_PCSYNC		BIT(7)
++#define GUD_DISPLAY_MODE_FLAG_NCSYNC		BIT(8)
++#define GUD_DISPLAY_MODE_FLAG_HSKEW		BIT(9)
++/* BCast and PixelMultiplex are deprecated */
++#define GUD_DISPLAY_MODE_FLAG_DBLCLK		BIT(12)
++#define GUD_DISPLAY_MODE_FLAG_CLKDIV2		BIT(13)
++#define GUD_DISPLAY_MODE_FLAG_USER_MASK		\
++		(GUD_DISPLAY_MODE_FLAG_PHSYNC | GUD_DISPLAY_MODE_FLAG_NHSYNC | \
++		GUD_DISPLAY_MODE_FLAG_PVSYNC | GUD_DISPLAY_MODE_FLAG_NVSYNC | \
++		GUD_DISPLAY_MODE_FLAG_INTERLACE | GUD_DISPLAY_MODE_FLAG_DBLSCAN | \
++		GUD_DISPLAY_MODE_FLAG_CSYNC | GUD_DISPLAY_MODE_FLAG_PCSYNC | \
++		GUD_DISPLAY_MODE_FLAG_NCSYNC | GUD_DISPLAY_MODE_FLAG_HSKEW | \
++		GUD_DISPLAY_MODE_FLAG_DBLCLK | GUD_DISPLAY_MODE_FLAG_CLKDIV2)
++/* Internal protocol flags */
++#define GUD_DISPLAY_MODE_FLAG_PREFERRED		BIT(10)
++} __packed;
++
++/*
++ * struct gud_connector_descriptor_req - Connector descriptor
++ * @connector_type: Connector type (GUD_CONNECTOR_TYPE_*).
++ *                  If the host doesn't support the type it should fall back to PANEL.
++ * @flags: Flags
++ *         - POLL_STATUS: Connector status can change (polled every 10 seconds)
++ *         - INTERLACE: Interlaced modes are supported
++ *         - DOUBLESCAN: Doublescan modes are supported
++ */
++struct gud_connector_descriptor_req {
++	__u8 connector_type;
++#define GUD_CONNECTOR_TYPE_PANEL		0
++#define GUD_CONNECTOR_TYPE_VGA			1
++#define GUD_CONNECTOR_TYPE_COMPOSITE		2
++#define GUD_CONNECTOR_TYPE_SVIDEO		3
++#define GUD_CONNECTOR_TYPE_COMPONENT		4
++#define GUD_CONNECTOR_TYPE_DVI			5
++#define GUD_CONNECTOR_TYPE_DISPLAYPORT		6
++#define GUD_CONNECTOR_TYPE_HDMI			7
++	__le32 flags;
++#define GUD_CONNECTOR_FLAGS_POLL_STATUS		BIT(0)
++#define GUD_CONNECTOR_FLAGS_INTERLACE		BIT(1)
++#define GUD_CONNECTOR_FLAGS_DOUBLESCAN		BIT(2)
++} __packed;
++
++/*
++ * struct gud_set_buffer_req - Set buffer transfer info
++ * @x: X position of rectangle
++ * @y: Y position
++ * @width: Pixel width of rectangle
++ * @height: Pixel height
++ * @length: Buffer length in bytes
++ * @compression: Transfer compression
++ * @compressed_length: Compressed buffer length
++ *
++ * This request is issued right before the bulk transfer.
++ * @x, @y, @width and @height specifies the rectangle where the buffer should be
++ * placed inside the framebuffer.
++ */
++struct gud_set_buffer_req {
++	__le32 x;
++	__le32 y;
++	__le32 width;
++	__le32 height;
++	__le32 length;
++	__u8 compression;
++	__le32 compressed_length;
++} __packed;
++
++/*
++ * struct gud_state_req - Display state
++ * @mode: Display mode
++ * @format: Pixel format GUD_PIXEL_FORMAT_*
++ * @connector: Connector index
++ * @properties: Array of properties
++ *
++ * The entire state is transferred each time there's a change.
++ */
++struct gud_state_req {
++	struct gud_display_mode_req mode;
++	__u8 format;
++	__u8 connector;
++	struct gud_property_req properties[];
++} __packed;
++
++/* List of supported connector properties: */
++
++/* Margins in pixels to deal with overscan, range 0-100 */
++#define GUD_PROPERTY_TV_LEFT_MARGIN			1
++#define GUD_PROPERTY_TV_RIGHT_MARGIN			2
++#define GUD_PROPERTY_TV_TOP_MARGIN			3
++#define GUD_PROPERTY_TV_BOTTOM_MARGIN			4
++#define GUD_PROPERTY_TV_MODE				5
++/* Brightness in percent, range 0-100 */
++#define GUD_PROPERTY_TV_BRIGHTNESS			6
++/* Contrast in percent, range 0-100 */
++#define GUD_PROPERTY_TV_CONTRAST			7
++/* Flicker reduction in percent, range 0-100 */
++#define GUD_PROPERTY_TV_FLICKER_REDUCTION		8
++/* Overscan in percent, range 0-100 */
++#define GUD_PROPERTY_TV_OVERSCAN			9
++/* Saturation in percent, range 0-100 */
++#define GUD_PROPERTY_TV_SATURATION			10
++/* Hue in percent, range 0-100 */
++#define GUD_PROPERTY_TV_HUE				11
++
++/*
++ * Backlight brightness is in the range 0-100 inclusive. The value represents the human perceptual
++ * brightness and not a linear PWM value. 0 is minimum brightness which should not turn the
++ * backlight completely off. The DPMS connector property should be used to control power which will
++ * trigger a GUD_REQ_SET_DISPLAY_ENABLE request.
++ *
++ * This does not map to a DRM property, it is used with the backlight device.
++ */
++#define GUD_PROPERTY_BACKLIGHT_BRIGHTNESS		12
++
++/* List of supported properties that are not connector propeties: */
++
++/*
++ * Plane rotation. Should return the supported bitmask on
++ * GUD_REQ_GET_PROPERTIES. GUD_ROTATION_0 is mandatory.
++ *
++ * Note: This is not display rotation so 90/270 will need scaling to make it fit (unless squared).
++ */
++#define GUD_PROPERTY_ROTATION				50
++  #define GUD_ROTATION_0			BIT(0)
++  #define GUD_ROTATION_90			BIT(1)
++  #define GUD_ROTATION_180			BIT(2)
++  #define GUD_ROTATION_270			BIT(3)
++  #define GUD_ROTATION_REFLECT_X		BIT(4)
++  #define GUD_ROTATION_REFLECT_Y		BIT(5)
++  #define GUD_ROTATION_MASK			(GUD_ROTATION_0 | GUD_ROTATION_90 | \
++						GUD_ROTATION_180 | GUD_ROTATION_270 | \
++						GUD_ROTATION_REFLECT_X | GUD_ROTATION_REFLECT_Y)
++
++/* USB Control requests: */
++
++/* Get status from the last GET/SET control request. Value is u8. */
++#define GUD_REQ_GET_STATUS				0x00
++  /* Status values: */
++  #define GUD_STATUS_OK				0x00
++  #define GUD_STATUS_BUSY			0x01
++  #define GUD_STATUS_REQUEST_NOT_SUPPORTED	0x02
++  #define GUD_STATUS_PROTOCOL_ERROR		0x03
++  #define GUD_STATUS_INVALID_PARAMETER		0x04
++  #define GUD_STATUS_ERROR			0x05
++
++/* Get display descriptor as a &gud_display_descriptor_req */
++#define GUD_REQ_GET_DESCRIPTOR				0x01
++
++/* Get supported pixel formats as a byte array of GUD_PIXEL_FORMAT_* */
++#define GUD_REQ_GET_FORMATS				0x40
++  #define GUD_FORMATS_MAX_NUM			32
++  /* R1 is a 1-bit monochrome transfer format presented to userspace as XRGB8888 */
++  #define GUD_PIXEL_FORMAT_R1			0x01
++  #define GUD_PIXEL_FORMAT_XRGB1111		0x20
++  #define GUD_PIXEL_FORMAT_RGB565		0x40
++  #define GUD_PIXEL_FORMAT_XRGB8888		0x80
++  #define GUD_PIXEL_FORMAT_ARGB8888		0x81
++
++/*
++ * Get supported properties that are not connector propeties as a &gud_property_req array.
++ * gud_property_req.val often contains the initial value for the property.
++ */
++#define GUD_REQ_GET_PROPERTIES				0x41
++  #define GUD_PROPERTIES_MAX_NUM		32
++
++/* Connector requests have the connector index passed in the wValue field */
++
++/* Get connector descriptors as an array of &gud_connector_descriptor_req */
++#define GUD_REQ_GET_CONNECTORS				0x50
++  #define GUD_CONNECTORS_MAX_NUM		32
++
++/*
++ * Get properties supported by the connector as a &gud_property_req array.
++ * gud_property_req.val often contains the initial value for the property.
++ */
++#define GUD_REQ_GET_CONNECTOR_PROPERTIES		0x51
++  #define GUD_CONNECTOR_PROPERTIES_MAX_NUM	32
++
++/*
++ * Issued when there's a TV_MODE property present.
++ * Gets an array of the supported TV_MODE names each entry of length
++ * GUD_CONNECTOR_TV_MODE_NAME_LEN. Names must be NUL-terminated.
++ */
++#define GUD_REQ_GET_CONNECTOR_TV_MODE_VALUES		0x52
++  #define GUD_CONNECTOR_TV_MODE_NAME_LEN	16
++  #define GUD_CONNECTOR_TV_MODE_MAX_NUM		16
++
++/* When userspace checks connector status, this is issued first, not used for poll requests. */
++#define GUD_REQ_SET_CONNECTOR_FORCE_DETECT		0x53
++
++/*
++ * Get connector status. Value is u8.
++ *
++ * Userspace will get a HOTPLUG uevent if one of the following is true:
++ * - Connection status has changed since last
++ * - CHANGED is set
++ */
++#define GUD_REQ_GET_CONNECTOR_STATUS			0x54
++  #define GUD_CONNECTOR_STATUS_DISCONNECTED	0x00
++  #define GUD_CONNECTOR_STATUS_CONNECTED	0x01
++  #define GUD_CONNECTOR_STATUS_UNKNOWN		0x02
++  #define GUD_CONNECTOR_STATUS_CONNECTED_MASK	0x03
++  #define GUD_CONNECTOR_STATUS_CHANGED		BIT(7)
++
++/*
++ * Display modes can be fetched as either EDID data or an array of &gud_display_mode_req.
++ *
++ * If GUD_REQ_GET_CONNECTOR_MODES returns zero, EDID is used to create display modes.
++ * If both display modes and EDID are returned, EDID is just passed on to userspace
++ * in the EDID connector property.
++ */
++
++/* Get &gud_display_mode_req array of supported display modes */
++#define GUD_REQ_GET_CONNECTOR_MODES			0x55
++  #define GUD_CONNECTOR_MAX_NUM_MODES		128
++
++/* Get Extended Display Identification Data */
++#define GUD_REQ_GET_CONNECTOR_EDID			0x56
++  #define GUD_CONNECTOR_MAX_EDID_LEN		2048
++
++/* Set buffer properties before bulk transfer as &gud_set_buffer_req */
++#define GUD_REQ_SET_BUFFER				0x60
++
++/* Check display configuration as &gud_state_req */
++#define GUD_REQ_SET_STATE_CHECK				0x61
++
++/* Apply the previous STATE_CHECK configuration */
++#define GUD_REQ_SET_STATE_COMMIT			0x62
++
++/* Enable/disable the display controller, value is u8: 0/1 */
++#define GUD_REQ_SET_CONTROLLER_ENABLE			0x63
++
++/* Enable/disable display/output (DPMS), value is u8: 0/1 */
++#define GUD_REQ_SET_DISPLAY_ENABLE			0x64
++
++#endif
diff --git a/target/linux/bcm27xx/patches-5.10/950-0710-drm-gud-fix-sizeof-use.patch b/target/linux/bcm27xx/patches-5.10/950-0710-drm-gud-fix-sizeof-use.patch
new file mode 100644
index 0000000000..322c0e0081
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0710-drm-gud-fix-sizeof-use.patch
@@ -0,0 +1,38 @@
+From 7496cbd572b0f5266fd752f6182b3f138a4ff0e6 Mon Sep 17 00:00:00 2001
+From: kernel test robot <lkp@intel.com>
+Date: Mon, 22 Mar 2021 18:44:33 +0100
+Subject: [PATCH] drm/gud: fix sizeof use
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ Upstream commit b91fbdc1df15befb3e51b9795b15d71fa4298602 ]
+
+drivers/gpu/drm/gud/gud_connector.c:710:37-43: ERROR: application of sizeof to pointer
+
+ sizeof when applied to a pointer typed expression gives the size of
+ the pointer
+
+Generated by: scripts/coccinelle/misc/noderef.cocci
+
+Fixes: 40e1a70b4aed ("drm: Add GUD USB Display driver")
+Reported-by: kernel test robot <lkp@intel.com>
+Signed-off-by: kernel test robot <lkp@intel.com>
+[fix subject]
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210322174434.58849-1-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_connector.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/gud/gud_connector.c
++++ b/drivers/gpu/drm/gud/gud_connector.c
+@@ -707,7 +707,7 @@ int gud_get_connectors(struct gud_device
+ 		return -ENOMEM;
+ 
+ 	ret = gud_usb_get(gdrm, GUD_REQ_GET_CONNECTORS, 0,
+-			  descs, GUD_CONNECTORS_MAX_NUM * sizeof(descs));
++			  descs, GUD_CONNECTORS_MAX_NUM * sizeof(*descs));
+ 	if (ret < 0)
+ 		goto free;
+ 	if (!ret || ret % sizeof(*descs)) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0711-drm-gud-Remove-unneeded-semicolon.patch b/target/linux/bcm27xx/patches-5.10/950-0711-drm-gud-Remove-unneeded-semicolon.patch
new file mode 100644
index 0000000000..c1cfeeafd0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0711-drm-gud-Remove-unneeded-semicolon.patch
@@ -0,0 +1,73 @@
+From f163b3a83a57e4a6946555fa6e363c7d89bfc380 Mon Sep 17 00:00:00 2001
+From: kernel test robot <lkp@intel.com>
+Date: Mon, 22 Mar 2021 18:44:34 +0100
+Subject: [PATCH] drm/gud: Remove unneeded semicolon
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ Upstream commit 166633c85c21fbe0baec40c898ca5a4f6eee0a08 ]
+
+drivers/gpu/drm/gud/gud_connector.c:658:2-3: Unneeded semicolon
+drivers/gpu/drm/gud/gud_connector.c:186:2-3: Unneeded semicolon
+drivers/gpu/drm/gud/gud_drv.c:511:3-4: Unneeded semicolon
+drivers/gpu/drm/gud/gud_pipe.c:127:4-5: Unneeded semicolon
+
+ Remove unneeded semicolon.
+
+Generated by: scripts/coccinelle/misc/semicolon.cocci
+
+Fixes: 40e1a70b4aed ("drm: Add GUD USB Display driver")
+Reported-by: kernel test robot <lkp@intel.com>
+Signed-off-by: kernel test robot <lkp@intel.com>
+[fix subject and squash 3 per file patches]
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210322174434.58849-2-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_connector.c | 4 ++--
+ drivers/gpu/drm/gud/gud_drv.c       | 2 +-
+ drivers/gpu/drm/gud/gud_pipe.c      | 2 +-
+ 3 files changed, 4 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/gud/gud_connector.c
++++ b/drivers/gpu/drm/gud/gud_connector.c
+@@ -183,7 +183,7 @@ static int gud_connector_detect(struct d
+ 	default:
+ 		ret = connector_status_unknown;
+ 		break;
+-	};
++	}
+ 
+ 	if (status & GUD_CONNECTOR_STATUS_CHANGED)
+ 		connector->epoch_counter += 1;
+@@ -655,7 +655,7 @@ static int gud_connector_create(struct g
+ 	default: /* future types */
+ 		connector_type = DRM_MODE_CONNECTOR_USB;
+ 		break;
+-	};
++	}
+ 
+ 	drm_connector_helper_add(connector, &gud_connector_helper_funcs);
+ 	ret = drm_connector_init(drm, connector, &gud_connector_funcs, connector_type);
+--- a/drivers/gpu/drm/gud/gud_drv.c
++++ b/drivers/gpu/drm/gud/gud_drv.c
+@@ -521,7 +521,7 @@ static int gud_probe(struct usb_interfac
+ 		case DRM_FORMAT_XRGB8888:
+ 			xrgb8888_supported = true;
+ 			break;
+-		};
++		}
+ 
+ 		fmt_buf_size = drm_format_info_min_pitch(info, 0, drm->mode_config.max_width) *
+ 			       drm->mode_config.max_height;
+--- a/drivers/gpu/drm/gud/gud_pipe.c
++++ b/drivers/gpu/drm/gud/gud_pipe.c
+@@ -124,7 +124,7 @@ static size_t gud_xrgb8888_to_color(u8 *
+ 			default:
+ 				WARN_ON_ONCE(1);
+ 				return len;
+-			};
++			}
+ 
+ 			*block |= pix << pixshift;
+ 		}
diff --git a/target/linux/bcm27xx/patches-5.10/950-0712-drm-gud-cleanup-coding-style-a-bit.patch b/target/linux/bcm27xx/patches-5.10/950-0712-drm-gud-cleanup-coding-style-a-bit.patch
new file mode 100644
index 0000000000..5f30edae18
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0712-drm-gud-cleanup-coding-style-a-bit.patch
@@ -0,0 +1,41 @@
+From a70cf7096e7171131db2689a0111c08b5f7bd764 Mon Sep 17 00:00:00 2001
+From: Bernard Zhao <bernard@vivo.com>
+Date: Fri, 2 Apr 2021 01:55:21 -0700
+Subject: [PATCH] drm/gud: cleanup coding style a bit
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ Upstream commit 6dd7efc437611db16d432e0030f72d0c7e890127 ]
+
+Fix coccicheck warning:
+drivers/gpu/drm/gud/gud_internal.h:89:2-3: Unneeded semicolon
+drivers/gpu/drm/gud/gud_internal.h:107:2-3: Unneeded semicolon
+
+Signed-off-by: Bernard Zhao <bernard@vivo.com>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210402085523.76928-1-bernard@vivo.com
+---
+ drivers/gpu/drm/gud/gud_internal.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/gud/gud_internal.h
++++ b/drivers/gpu/drm/gud/gud_internal.h
+@@ -86,7 +86,7 @@ static inline u8 gud_from_fourcc(u32 fou
+ 		return GUD_PIXEL_FORMAT_XRGB8888;
+ 	case DRM_FORMAT_ARGB8888:
+ 		return GUD_PIXEL_FORMAT_ARGB8888;
+-	};
++	}
+ 
+ 	return 0;
+ }
+@@ -104,7 +104,7 @@ static inline u32 gud_to_fourcc(u8 forma
+ 		return DRM_FORMAT_XRGB8888;
+ 	case GUD_PIXEL_FORMAT_ARGB8888:
+ 		return DRM_FORMAT_ARGB8888;
+-	};
++	}
+ 
+ 	return 0;
+ }
diff --git a/target/linux/bcm27xx/patches-5.10/950-0713-drm-gud-Free-buffers-on-device-removal.patch b/target/linux/bcm27xx/patches-5.10/950-0713-drm-gud-Free-buffers-on-device-removal.patch
new file mode 100644
index 0000000000..507b7be713
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0713-drm-gud-Free-buffers-on-device-removal.patch
@@ -0,0 +1,60 @@
+From 888d867aa6f8fe384b37c0915eed07bb3a970fc4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Thu, 1 Jul 2021 19:07:47 +0200
+Subject: [PATCH] drm/gud: Free buffers on device removal
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ drm-misc commit f8ac863b6a93863334cefb94285daaa6617381b5 ]
+
+Free transfer and compression buffers on device removal instead of at
+DRM device removal time. This ensures that the usual 2x8MB buffers are
+released when the device is unplugged and not kept around should
+userspace keep the DRM device fd open.
+
+At least Ubuntu 20.04 doesn't release the DRM device on unplug.
+
+The damage_lock mutex is not destroyed because it is used outside the
+drm_dev_enter/exit block in gud_pipe_update(). AFAICT it's possible for
+an open fbdev descriptor to trigger a commit after the USB device is gone.
+
+v2: Don't destroy damage_lock
+
+Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210701170748.58009-1-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_drv.c | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+--- a/drivers/gpu/drm/gud/gud_drv.c
++++ b/drivers/gpu/drm/gud/gud_drv.c
+@@ -407,14 +407,15 @@ static struct drm_driver gud_drm_driver
+ 	.minor			= 0,
+ };
+ 
+-static void gud_free_buffers_and_mutex(struct drm_device *drm, void *unused)
++static void gud_free_buffers_and_mutex(void *data)
+ {
+-	struct gud_device *gdrm = to_gud_device(drm);
++	struct gud_device *gdrm = data;
+ 
+ 	vfree(gdrm->compress_buf);
++	gdrm->compress_buf = NULL;
+ 	kfree(gdrm->bulk_buf);
++	gdrm->bulk_buf = NULL;
+ 	mutex_destroy(&gdrm->ctrl_lock);
+-	mutex_destroy(&gdrm->damage_lock);
+ }
+ 
+ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id)
+@@ -468,7 +469,7 @@ static int gud_probe(struct usb_interfac
+ 	INIT_WORK(&gdrm->work, gud_flush_work);
+ 	gud_clear_damage(gdrm);
+ 
+-	ret = drmm_add_action_or_reset(drm, gud_free_buffers_and_mutex, NULL);
++	ret = devm_add_action(dev, gud_free_buffers_and_mutex, gdrm);
+ 	if (ret)
+ 		return ret;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0714-drm-gud-Use-scatter-gather-USB-bulk-transfer.patch b/target/linux/bcm27xx/patches-5.10/950-0714-drm-gud-Use-scatter-gather-USB-bulk-transfer.patch
new file mode 100644
index 0000000000..4a7771fdb3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0714-drm-gud-Use-scatter-gather-USB-bulk-transfer.patch
@@ -0,0 +1,204 @@
+From 1cff637824f8e5626a754cbbb97bc8f3730a88f0 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Thu, 1 Jul 2021 19:07:48 +0200
+Subject: [PATCH] drm/gud: Use scatter-gather USB bulk transfer
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ drm-misc commit 2eecd93b743b5611cd3654698794b4d0cefdc9ee ]
+
+There'a limit to how big a kmalloc buffer can be, and as memory gets
+fragmented it becomes more difficult to get big buffers. The downside of
+smaller buffers is that the driver has to split the transfer up which
+hampers performance. Compression might also take a hit because of the
+splitting.
+
+Solve this by allocating the transfer buffer using vmalloc and create a
+SG table to be passed on to the USB subsystem. vmalloc_32() is used to
+avoid DMA bounce buffers on USB controllers that can only access 32-bit
+addresses.
+
+This also solves the problem that split transfers can give host side
+tearing since flushing is decoupled from rendering.
+
+usb_sg_wait() doesn't have timeout handling builtin, so it is wrapped in
+a timer like 4 out of 6 users in the kernel have done.
+
+v2:
+- Use DIV_ROUND_UP (Linus)
+- Add timeout note to the commit log (Linus)
+- Expand note about upper buffer limit (Linus)
+- Change var name s/timer/ctx/ in gud_usb_bulk_timeout()
+
+Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210701170748.58009-2-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_drv.c      | 50 +++++++++++++++++++++---------
+ drivers/gpu/drm/gud/gud_internal.h |  2 ++
+ drivers/gpu/drm/gud/gud_pipe.c     | 47 ++++++++++++++++++++++++----
+ 3 files changed, 78 insertions(+), 21 deletions(-)
+
+--- a/drivers/gpu/drm/gud/gud_drv.c
++++ b/drivers/gpu/drm/gud/gud_drv.c
+@@ -407,13 +407,40 @@ static struct drm_driver gud_drm_driver
+ 	.minor			= 0,
+ };
+ 
++static int gud_alloc_bulk_buffer(struct gud_device *gdrm)
++{
++	unsigned int i, num_pages;
++	struct page **pages;
++	void *ptr;
++	int ret;
++
++	gdrm->bulk_buf = vmalloc_32(gdrm->bulk_len);
++	if (!gdrm->bulk_buf)
++		return -ENOMEM;
++
++	num_pages = DIV_ROUND_UP(gdrm->bulk_len, PAGE_SIZE);
++	pages = kmalloc_array(num_pages, sizeof(struct page *), GFP_KERNEL);
++	if (!pages)
++		return -ENOMEM;
++
++	for (i = 0, ptr = gdrm->bulk_buf; i < num_pages; i++, ptr += PAGE_SIZE)
++		pages[i] = vmalloc_to_page(ptr);
++
++	ret = sg_alloc_table_from_pages(&gdrm->bulk_sgt, pages, num_pages,
++					0, gdrm->bulk_len, GFP_KERNEL);
++	kfree(pages);
++
++	return ret;
++}
++
+ static void gud_free_buffers_and_mutex(void *data)
+ {
+ 	struct gud_device *gdrm = data;
+ 
+ 	vfree(gdrm->compress_buf);
+ 	gdrm->compress_buf = NULL;
+-	kfree(gdrm->bulk_buf);
++	sg_free_table(&gdrm->bulk_sgt);
++	vfree(gdrm->bulk_buf);
+ 	gdrm->bulk_buf = NULL;
+ 	mutex_destroy(&gdrm->ctrl_lock);
+ }
+@@ -550,24 +577,17 @@ static int gud_probe(struct usb_interfac
+ 
+ 	if (desc.max_buffer_size)
+ 		max_buffer_size = le32_to_cpu(desc.max_buffer_size);
+-retry:
+-	/*
+-	 * Use plain kmalloc here since devm_kmalloc() places struct devres at the beginning
+-	 * of the buffer it allocates. This wastes a lot of memory when allocating big buffers.
+-	 * Asking for 2M would actually allocate 4M. This would also prevent getting the biggest
+-	 * possible buffer potentially leading to split transfers.
+-	 */
+-	gdrm->bulk_buf = kmalloc(max_buffer_size, GFP_KERNEL | __GFP_NOWARN);
+-	if (!gdrm->bulk_buf) {
+-		max_buffer_size = roundup_pow_of_two(max_buffer_size) / 2;
+-		if (max_buffer_size < SZ_512K)
+-			return -ENOMEM;
+-		goto retry;
+-	}
++	/* Prevent a misbehaving device from allocating loads of RAM. 4096x4096@XRGB8888 = 64 MB */
++	if (max_buffer_size > SZ_64M)
++		max_buffer_size = SZ_64M;
+ 
+ 	gdrm->bulk_pipe = usb_sndbulkpipe(interface_to_usbdev(intf), usb_endpoint_num(bulk_out));
+ 	gdrm->bulk_len = max_buffer_size;
+ 
++	ret = gud_alloc_bulk_buffer(gdrm);
++	if (ret)
++		return ret;
++
+ 	if (gdrm->compression & GUD_COMPRESSION_LZ4) {
+ 		gdrm->lz4_comp_mem = devm_kmalloc(dev, LZ4_MEM_COMPRESS, GFP_KERNEL);
+ 		if (!gdrm->lz4_comp_mem)
+--- a/drivers/gpu/drm/gud/gud_internal.h
++++ b/drivers/gpu/drm/gud/gud_internal.h
+@@ -5,6 +5,7 @@
+ 
+ #include <linux/list.h>
+ #include <linux/mutex.h>
++#include <linux/scatterlist.h>
+ #include <linux/usb.h>
+ #include <linux/workqueue.h>
+ #include <uapi/drm/drm_fourcc.h>
+@@ -26,6 +27,7 @@ struct gud_device {
+ 	unsigned int bulk_pipe;
+ 	void *bulk_buf;
+ 	size_t bulk_len;
++	struct sg_table bulk_sgt;
+ 
+ 	u8 compression;
+ 	void *lz4_comp_mem;
+--- a/drivers/gpu/drm/gud/gud_pipe.c
++++ b/drivers/gpu/drm/gud/gud_pipe.c
+@@ -219,13 +219,51 @@ vunmap:
+ 	return ret;
+ }
+ 
++struct gud_usb_bulk_context {
++	struct timer_list timer;
++	struct usb_sg_request sgr;
++};
++
++static void gud_usb_bulk_timeout(struct timer_list *t)
++{
++	struct gud_usb_bulk_context *ctx = from_timer(ctx, t, timer);
++
++	usb_sg_cancel(&ctx->sgr);
++}
++
++static int gud_usb_bulk(struct gud_device *gdrm, size_t len)
++{
++	struct gud_usb_bulk_context ctx;
++	int ret;
++
++	ret = usb_sg_init(&ctx.sgr, gud_to_usb_device(gdrm), gdrm->bulk_pipe, 0,
++			  gdrm->bulk_sgt.sgl, gdrm->bulk_sgt.nents, len, GFP_KERNEL);
++	if (ret)
++		return ret;
++
++	timer_setup_on_stack(&ctx.timer, gud_usb_bulk_timeout, 0);
++	mod_timer(&ctx.timer, jiffies + msecs_to_jiffies(3000));
++
++	usb_sg_wait(&ctx.sgr);
++
++	if (!del_timer_sync(&ctx.timer))
++		ret = -ETIMEDOUT;
++	else if (ctx.sgr.status < 0)
++		ret = ctx.sgr.status;
++	else if (ctx.sgr.bytes != len)
++		ret = -EIO;
++
++	destroy_timer_on_stack(&ctx.timer);
++
++	return ret;
++}
++
+ static int gud_flush_rect(struct gud_device *gdrm, struct drm_framebuffer *fb,
+ 			  const struct drm_format_info *format, struct drm_rect *rect)
+ {
+-	struct usb_device *usb = gud_to_usb_device(gdrm);
+ 	struct gud_set_buffer_req req;
+-	int ret, actual_length;
+ 	size_t len, trlen;
++	int ret;
+ 
+ 	drm_dbg(&gdrm->drm, "Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
+ 
+@@ -254,10 +292,7 @@ static int gud_flush_rect(struct gud_dev
+ 			return ret;
+ 	}
+ 
+-	ret = usb_bulk_msg(usb, gdrm->bulk_pipe, gdrm->bulk_buf, trlen,
+-			   &actual_length, msecs_to_jiffies(3000));
+-	if (!ret && trlen != actual_length)
+-		ret = -EIO;
++	ret = gud_usb_bulk(gdrm, trlen);
+ 	if (ret)
+ 		gdrm->stats_num_errors++;
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0715-drm-gud-Add-Raspberry-Pi-Pico-ID.patch b/target/linux/bcm27xx/patches-5.10/950-0715-drm-gud-Add-Raspberry-Pi-Pico-ID.patch
new file mode 100644
index 0000000000..74b56c14e7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0715-drm-gud-Add-Raspberry-Pi-Pico-ID.patch
@@ -0,0 +1,31 @@
+From 57f251cd4c0172cd080ca83994e794b1b6515148 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 3 Jul 2021 16:13:20 +0200
+Subject: [PATCH] drm/gud: Add Raspberry Pi Pico ID
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ drm-misc commit b3f4ef669357d5b9a2c5e8c33e3967a2070db7f9 ]
+
+Add VID/PID for the Raspberry Pi Pico implementation.
+Source: https://github.com/notro/gud-pico
+
+Cc: Linus Walleij <linus.walleij@linaro.org>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Reviewed-by: Peter Stuge <peter@stuge.se>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210703141321.35494-1-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_drv.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/gpu/drm/gud/gud_drv.c
++++ b/drivers/gpu/drm/gud/gud_drv.c
+@@ -674,6 +674,7 @@ static int gud_resume(struct usb_interfa
+ 
+ static const struct usb_device_id gud_id_table[] = {
+ 	{ USB_DEVICE_INTERFACE_CLASS(0x1d50, 0x614d, USB_CLASS_VENDOR_SPEC) },
++	{ USB_DEVICE_INTERFACE_CLASS(0x16d0, 0x10a9, USB_CLASS_VENDOR_SPEC) },
+ 	{ }
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch b/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch
new file mode 100644
index 0000000000..d93e6945ed
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0716-drm-gud-Add-async_flush-module-parameter.patch
@@ -0,0 +1,55 @@
+From e0eb7ca2dd07ca8878b67cc20e75f9d7e46d80f4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Sat, 3 Jul 2021 16:13:21 +0200
+Subject: [PATCH] drm/gud: Add async_flush module parameter
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+[ drm-misc commit a0356899ebe8ecde0da9c5685cc47154db973a5e ]
+
+Provide a way for userspace to choose synchronous flushing/pageflips.
+This helps save CPU and power.
+
+It is also useful for test scripts since userspace can know when a flush
+has happended and wait before doing the next visual test.
+
+Cc: Linus Walleij <linus.walleij@linaro.org>
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+Reviewed-by: Peter Stuge <peter@stuge.se>
+Link: https://patchwork.freedesktop.org/patch/msgid/20210703141321.35494-2-noralf@tronnes.org
+---
+ drivers/gpu/drm/gud/gud_pipe.c | 15 +++++++++++++++
+ 1 file changed, 15 insertions(+)
+
+--- a/drivers/gpu/drm/gud/gud_pipe.c
++++ b/drivers/gpu/drm/gud/gud_pipe.c
+@@ -24,6 +24,19 @@
+ #include "gud_internal.h"
+ 
+ /*
++ * Some userspace rendering loops runs all displays in the same loop.
++ * This means that a fast display will have to wait for a slow one.
++ * For this reason gud does flushing asynchronous by default.
++ * The down side is that in e.g. a single display setup userspace thinks
++ * the display is insanely fast since the driver reports back immediately
++ * that the flush/pageflip is done. This wastes CPU and power.
++ * Such users might want to set this module parameter to false.
++ */
++static bool gud_async_flush = true;
++module_param_named(async_flush, gud_async_flush, bool, 0644);
++MODULE_PARM_DESC(async_flush, "Enable asynchronous flushing [default=true]");
++
++/*
+  * FIXME: The driver is probably broken on Big Endian machines.
+  * See discussion:
+  * https://lore.kernel.org/dri-devel/CAKb7UvihLX0hgBOP3VBG7O+atwZcUVCPVuBdfmDMpg0NjXe-cQ@mail.gmail.com/
+@@ -577,6 +590,8 @@ void gud_pipe_update(struct drm_simple_d
+ 		if (gdrm->flags & GUD_DISPLAY_FLAG_FULL_UPDATE)
+ 			drm_rect_init(&damage, 0, 0, fb->width, fb->height);
+ 		gud_fb_queue_damage(gdrm, fb, &damage);
++		if (!gud_async_flush)
++			flush_work(&gdrm->work);
+ 	}
+ 
+ 	if (!crtc->state->enable)
diff --git a/target/linux/bcm27xx/patches-5.10/950-0717-drm-vc4-hdmi-Make-sure-the-controller-is-powered-up-.patch b/target/linux/bcm27xx/patches-5.10/950-0717-drm-vc4-hdmi-Make-sure-the-controller-is-powered-up-.patch
new file mode 100644
index 0000000000..fdfc35d0ab
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0717-drm-vc4-hdmi-Make-sure-the-controller-is-powered-up-.patch
@@ -0,0 +1,65 @@
+From 94bc403a9a7af3bd042ecdc160e6ab0b08331df8 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Fri, 2 Jul 2021 12:03:28 +0200
+Subject: [PATCH] drm/vc4: hdmi: Make sure the controller is powered up during
+ bind
+
+In the bind hook, we actually need the device to have the HSM clock
+running during the final part of the display initialisation where we
+reset the controller and initialise the CEC component.
+
+Failing to do so will result in a complete, silent, hang of the CPU.
+
+Fixes: 411efa18e4b0 ("drm/vc4: hdmi: Move the HSM clock enable to runtime_pm")
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 17 +++++++++++++++--
+ 1 file changed, 15 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -2289,6 +2289,18 @@ static int vc4_hdmi_bind(struct device *
+ 	vc4_hdmi->disable_wifi_frequencies =
+ 		of_property_read_bool(dev->of_node, "wifi-2.4ghz-coexistence");
+ 
++	/*
++	 * We need to have the device powered up at this point to call
++	 * our reset hook and for the CEC init.
++	 */
++	ret = vc4_hdmi_runtime_resume(dev);
++	if (ret)
++		goto err_put_ddc;
++
++	pm_runtime_get_noresume(dev);
++	pm_runtime_set_active(dev);
++	pm_runtime_enable(dev);
++
+ 	if (vc4_hdmi->variant->reset)
+ 		vc4_hdmi->variant->reset(vc4_hdmi);
+ 
+@@ -2300,8 +2312,6 @@ static int vc4_hdmi_bind(struct device *
+ 		clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
+ 	}
+ 
+-	pm_runtime_enable(dev);
+-
+ 	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
+ 	drm_encoder_helper_add(encoder, &vc4_hdmi_encoder_helper_funcs);
+ 
+@@ -2325,6 +2335,8 @@ static int vc4_hdmi_bind(struct device *
+ 			     vc4_hdmi_debugfs_regs,
+ 			     vc4_hdmi);
+ 
++	pm_runtime_put_sync(dev);
++
+ 	return 0;
+ 
+ err_free_cec:
+@@ -2335,6 +2347,7 @@ err_destroy_conn:
+ 	vc4_hdmi_connector_destroy(&vc4_hdmi->connector);
+ err_destroy_encoder:
+ 	drm_encoder_cleanup(encoder);
++	pm_runtime_put_sync(dev);
+ 	pm_runtime_disable(dev);
+ err_put_ddc:
+ 	put_device(&vc4_hdmi->ddc->dev);
diff --git a/target/linux/bcm27xx/patches-5.10/950-0718-overlays-Set-CMA-to-512MB-on-Pi-4-for-vc4.patch b/target/linux/bcm27xx/patches-5.10/950-0718-overlays-Set-CMA-to-512MB-on-Pi-4-for-vc4.patch
new file mode 100644
index 0000000000..43a2775af8
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0718-overlays-Set-CMA-to-512MB-on-Pi-4-for-vc4.patch
@@ -0,0 +1,151 @@
+From aa4e10d677dfe14c7e3132595558bcbf2fc25aca Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Jul 2021 11:05:18 +0100
+Subject: [PATCH] overlays: Set CMA to 512MB on Pi 4 for vc4
+
+Pi 4s have at least 1GB, and there are advantages to having more CMA
+available (HEVC works out of the box, support for more complex video
+setups, etc.) without significant disadvantages.
+
+Can be overridden by appending a parameter to the dtoverlay line, e.g.
+dtoverlay=vc4-fkms-v3d,cma-256
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 17 +++++++
+ arch/arm/boot/dts/overlays/overlay_map.dts    |  9 ++++
+ .../dts/overlays/upstream-pi4-overlay.dts     |  2 +-
+ .../dts/overlays/vc4-fkms-v3d-pi4-overlay.dts | 44 +++++++++++++++++++
+ .../dts/overlays/vc4-kms-v3d-pi4-overlay.dts  |  6 ++-
+ 6 files changed, 77 insertions(+), 2 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/vc4-fkms-v3d-pi4-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -220,6 +220,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	upstream.dtbo \
+ 	upstream-pi4.dtbo \
+ 	vc4-fkms-v3d.dtbo \
++	vc4-fkms-v3d-pi4.dtbo \
+ 	vc4-kms-dpi-at056tn53v1.dtbo \
+ 	vc4-kms-dsi-7inch.dtbo \
+ 	vc4-kms-dsi-lt070me05000.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -3268,6 +3268,23 @@ Params: cma-512                 CMA is 5
+         cma-default             Use upstream's default value
+ 
+ 
++Name:   vc4-fkms-v3d-pi4
++Info:   Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx
++        display stack.
++Load:   dtoverlay=vc4-fkms-v3d-pi4,<param>
++Params: cma-512                 CMA is 512MB (needs 1GB)
++        cma-448                 CMA is 448MB (needs 1GB)
++        cma-384                 CMA is 384MB (needs 1GB)
++        cma-320                 CMA is 320MB (needs 1GB)
++        cma-256                 CMA is 256MB (needs 1GB)
++        cma-192                 CMA is 192MB (needs 1GB)
++        cma-128                 CMA is 128MB
++        cma-96                  CMA is 96MB
++        cma-64                  CMA is 64MB
++        cma-size                CMA size in bytes, 4MB aligned
++        cma-default             Use upstream's default value
++
++
+ Name:   vc4-kms-dpi-at056tn53v1
+ Info:   Enable an Innolux 5.6in VGA TFT connected to DPI interface under KMS.
+         Requires vc4-kms-v3d to be loaded.
+--- a/arch/arm/boot/dts/overlays/overlay_map.dts
++++ b/arch/arm/boot/dts/overlays/overlay_map.dts
+@@ -138,6 +138,15 @@
+ 		bcm2711;
+ 	};
+ 
++	vc4-fkms-v3d {
++		bcm2835;
++		bcm2711 = "vc4-fkms-v3d-pi4";
++	};
++
++	vc4-fkms-v3d-pi4 {
++		bcm2711;
++	};
++
+ 	vc4-kms-v3d {
+ 		bcm2835;
+ 		bcm2711 = "vc4-kms-v3d-pi4";
+--- a/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/upstream-pi4-overlay.dts
+@@ -6,7 +6,7 @@
+ #include <dt-bindings/clock/bcm2835.h>
+ 
+ / {
+-	compatible = "brcm,bcm2835";
++	compatible = "brcm,bcm2711";
+ 	fragment@0 {
+ 		target = <&ddc0>;
+ 		__overlay__ {
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-pi4-overlay.dts
+@@ -0,0 +1,44 @@
++/*
++ * vc4-fkms-v3d-overlay.dts
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "cma-overlay.dts"
++
++&frag0 {
++       size = <(512*1024*1024)>;
++};
++
++/ {
++	compatible = "brcm,bcm2711";
++
++	fragment@1 {
++		target = <&fb>;
++		__overlay__  {
++			status = "disabled";
++		};
++	};
++
++	fragment@2 {
++		target = <&firmwarekms>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@3 {
++		target = <&v3d>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++
++	fragment@4 {
++		target = <&vc4>;
++		__overlay__  {
++			status = "okay";
++		};
++	};
++};
+--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+@@ -9,8 +9,12 @@
+ 
+ #include "cma-overlay.dts"
+ 
++&frag0 {
++       size = <(512*1024*1024)>;
++};
++
+ / {
+-	compatible = "brcm,bcm2835";
++	compatible = "brcm,bcm2711";
+ 
+ 	fragment@1 {
+ 		target = <&ddc0>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0719-ARM-dts-Correct-CM4-PHY-MDIO-address.patch b/target/linux/bcm27xx/patches-5.10/950-0719-ARM-dts-Correct-CM4-PHY-MDIO-address.patch
new file mode 100644
index 0000000000..5be9f22ad7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0719-ARM-dts-Correct-CM4-PHY-MDIO-address.patch
@@ -0,0 +1,29 @@
+From d0edf1b5178fc3a3ef093755c209cad43e6d8426 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Jul 2021 13:24:09 +0100
+Subject: [PATCH] ARM: dts: Correct CM4 PHY MDIO address
+
+The firmware patches the PHY MDIO address in the DTB to cope with
+variations between board revisions, but the default for the CM4 PHY
+is currently 1 when it should be 0.
+
+Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -277,9 +277,9 @@
+ };
+ 
+ &genet_mdio {
+-	phy1: ethernet-phy@1 {
++	phy1: ethernet-phy@0 {
+ 		/* No PHY interrupt */
+-		reg = <0x1>;
++		reg = <0x0>;
+ 	};
+ };
+ 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0720-drm-vc4-Increase-the-core-clock-based-on-HVS-load.patch b/target/linux/bcm27xx/patches-5.10/950-0720-drm-vc4-Increase-the-core-clock-based-on-HVS-load.patch
new file mode 100644
index 0000000000..8b1add708d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0720-drm-vc4-Increase-the-core-clock-based-on-HVS-load.patch
@@ -0,0 +1,249 @@
+From cf8b55ab71c780cefff2c152949303e82559701c Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 26 Jul 2021 18:03:53 +0100
+Subject: [PATCH] drm/vc4: Increase the core clock based on HVS load
+
+Depending on a given HVS output (HVS to PixelValves) and input (planes
+attached to a channel) load, the HVS needs for the core clock to be
+raised above its boot time default.
+
+Failing to do so will result in a vblank timeout and a stalled display
+pipeline.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c |  15 +++++
+ drivers/gpu/drm/vc4/vc4_drv.h  |   3 +
+ drivers/gpu/drm/vc4/vc4_kms.c  | 116 ++++++++++++++++++++++++++++++++-
+ 3 files changed, 131 insertions(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -660,12 +660,27 @@ static int vc4_crtc_atomic_check(struct
+ 	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
+ 	struct drm_connector *conn;
+ 	struct drm_connector_state *conn_state;
++	struct drm_encoder *encoder;
+ 	int ret, i;
+ 
+ 	ret = vc4_hvs_atomic_check(crtc, state);
+ 	if (ret)
+ 		return ret;
+ 
++	encoder = vc4_get_crtc_encoder(crtc, crtc_state);
++	if (encoder) {
++		const struct drm_display_mode *mode = &crtc_state->adjusted_mode;
++		struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder);
++
++		mode = &crtc_state->adjusted_mode;
++		if (vc4_encoder->type == VC4_ENCODER_TYPE_HDMI0) {
++			vc4_state->hvs_load = max(mode->clock * mode->hdisplay / mode->htotal + 1000,
++						  mode->clock * 9 / 10) * 1000;
++		} else {
++			vc4_state->hvs_load = mode->clock * 1000;
++		}
++	}
++
+ 	for_each_new_connector_in_state(state, conn, conn_state,
+ 					i) {
+ 		if (conn_state->crtc != crtc)
+--- a/drivers/gpu/drm/vc4/vc4_drv.h
++++ b/drivers/gpu/drm/vc4/vc4_drv.h
+@@ -326,6 +326,7 @@ struct vc4_hvs {
+ 	u32 __iomem *dlist;
+ 
+ 	struct clk *core_clk;
++	struct clk_request *core_req;
+ 
+ 	/* Memory manager for CRTCs to allocate space in the display
+ 	 * list.  Units are dwords.
+@@ -537,6 +538,8 @@ struct vc4_crtc_state {
+ 		unsigned int bottom;
+ 	} margins;
+ 
++	unsigned long hvs_load;
++
+ 	/* Transitional state below, only valid during atomic commits */
+ 	bool update_muxing;
+ };
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -40,6 +40,9 @@ static struct vc4_ctm_state *to_vc4_ctm_
+ struct vc4_hvs_state {
+ 	struct drm_private_state base;
+ 	unsigned int unassigned_channels;
++	unsigned int num_outputs;
++	unsigned long fifo_load;
++	unsigned long core_clock_rate;
+ };
+ 
+ static struct vc4_hvs_state *
+@@ -186,6 +189,19 @@ vc4_ctm_commit(struct vc4_dev *vc4, stru
+ }
+ 
+ static struct vc4_hvs_state *
++vc4_hvs_get_new_global_state(struct drm_atomic_state *state)
++{
++	struct vc4_dev *vc4 = to_vc4_dev(state->dev);
++	struct drm_private_state *priv_state;
++
++	priv_state = drm_atomic_get_new_private_obj_state(state, &vc4->hvs_channels);
++	if (IS_ERR(priv_state))
++		return ERR_CAST(priv_state);
++
++	return to_vc4_hvs_state(priv_state);
++}
++
++static struct vc4_hvs_state *
+ vc4_hvs_get_global_state(struct drm_atomic_state *state)
+ {
+ 	struct vc4_dev *vc4 = to_vc4_dev(state->dev);
+@@ -312,10 +328,15 @@ vc4_atomic_complete_commit(struct drm_at
+ 	struct vc4_dev *vc4 = to_vc4_dev(dev);
+ 	struct vc4_hvs *hvs = vc4->hvs;
+ 	struct drm_crtc_state *new_crtc_state;
++	struct vc4_hvs_state *hvs_state;
+ 	struct drm_crtc *crtc;
+ 	struct clk_request *core_req;
+ 	int i;
+ 
++	hvs_state = vc4_hvs_get_new_global_state(state);
++	if (WARN_ON(!hvs_state))
++		return;
++
+ 	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+ 		struct vc4_crtc_state *vc4_crtc_state;
+ 
+@@ -326,9 +347,20 @@ vc4_atomic_complete_commit(struct drm_at
+ 		vc4_hvs_mask_underrun(dev, vc4_crtc_state->assigned_channel);
+ 	}
+ 
+-	if (vc4->hvs && vc4->hvs->hvs5)
++	if (vc4->hvs && vc4->hvs->hvs5) {
++		/*
++		 * Do a temporary request on the core clock during the
++		 * modeset.
++		 */
+ 		core_req = clk_request_start(hvs->core_clk, 500000000);
+ 
++		/*
++		 * And remove the previous one based on the HVS
++		 * requirements if any.
++		 */
++		clk_request_done(hvs->core_req);
++	}
++
+ 	drm_atomic_helper_wait_for_fences(dev, state, false);
+ 
+ 	drm_atomic_helper_wait_for_dependencies(state);
+@@ -358,8 +390,20 @@ vc4_atomic_complete_commit(struct drm_at
+ 
+ 	drm_atomic_helper_commit_cleanup_done(state);
+ 
+-	if (vc4->hvs && vc4->hvs->hvs5)
++	if (vc4->hvs && vc4->hvs->hvs5) {
++		drm_dbg(dev, "Running the core clock at %lu Hz\n",
++			hvs_state->core_clock_rate);
++
++		/*
++		 * Request a clock rate based on the current HVS
++		 * requirements.
++		 */
++		hvs->core_req = clk_request_start(hvs->core_clk,
++						  hvs_state->core_clock_rate);
++
++		/* And drop the temporary request */
+ 		clk_request_done(core_req);
++	}
+ 
+ 	drm_atomic_state_put(state);
+ 
+@@ -703,6 +747,9 @@ vc4_hvs_channels_duplicate_state(struct
+ 	__drm_atomic_helper_private_obj_duplicate_state(obj, &state->base);
+ 
+ 	state->unassigned_channels = old_state->unassigned_channels;
++	state->fifo_load = old_state->fifo_load;
++	state->num_outputs = old_state->num_outputs;
++	state->core_clock_rate = old_state->core_clock_rate;
+ 
+ 	return &state->base;
+ }
+@@ -849,6 +896,65 @@ static int vc4_pv_muxing_atomic_check(st
+ }
+ 
+ static int
++vc4_core_clock_atomic_check(struct drm_atomic_state *state)
++{
++	struct vc4_dev *vc4 = to_vc4_dev(state->dev);
++	struct drm_private_state *priv_state;
++	struct vc4_hvs_state *hvs_new_state;
++	struct vc4_load_tracker_state *load_state;
++	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
++	struct drm_crtc *crtc;
++	unsigned long pixel_rate;
++	unsigned long cob_rate;
++	unsigned int i;
++
++	priv_state = drm_atomic_get_private_obj_state(state,
++						      &vc4->load_tracker);
++	if (IS_ERR(priv_state))
++		return PTR_ERR(priv_state);
++
++	load_state = to_vc4_load_tracker_state(priv_state);
++
++	hvs_new_state = vc4_hvs_get_global_state(state);
++	if (!hvs_new_state)
++		return -EINVAL;
++
++	for_each_oldnew_crtc_in_state(state, crtc,
++				      old_crtc_state,
++				      new_crtc_state,
++				      i) {
++		if (old_crtc_state->active) {
++			struct vc4_crtc_state *old_vc4_state =
++				to_vc4_crtc_state(old_crtc_state);
++
++			hvs_new_state->num_outputs -= 1;
++			hvs_new_state->fifo_load -= old_vc4_state->hvs_load;
++		}
++
++		if (new_crtc_state->active) {
++			struct vc4_crtc_state *new_vc4_state =
++				to_vc4_crtc_state(new_crtc_state);
++
++			hvs_new_state->num_outputs += 1;
++			hvs_new_state->fifo_load += new_vc4_state->hvs_load;
++		}
++	}
++
++	cob_rate = hvs_new_state->fifo_load;
++	pixel_rate = load_state->hvs_load;
++	if (hvs_new_state->num_outputs > 1) {
++		pixel_rate = (pixel_rate * 40) / 100;
++	} else {
++		pixel_rate = (pixel_rate * 60) / 100;
++	}
++
++	hvs_new_state->core_clock_rate = max(cob_rate, pixel_rate);
++
++	return 0;
++}
++
++
++static int
+ vc4_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
+ {
+ 	int ret;
+@@ -865,7 +971,11 @@ vc4_atomic_check(struct drm_device *dev,
+ 	if (ret)
+ 		return ret;
+ 
+-	return vc4_load_tracker_atomic_check(state);
++	ret = vc4_load_tracker_atomic_check(state);
++	if (ret)
++		return ret;
++
++	return vc4_core_clock_atomic_check(state);
+ }
+ 
+ static const struct drm_mode_config_funcs vc4_mode_funcs = {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0721-drm-vc4-Increase-the-core-clock-to-a-minimum-of-500M.patch b/target/linux/bcm27xx/patches-5.10/950-0721-drm-vc4-Increase-the-core-clock-to-a-minimum-of-500M.patch
new file mode 100644
index 0000000000..ce8a285502
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0721-drm-vc4-Increase-the-core-clock-to-a-minimum-of-500M.patch
@@ -0,0 +1,40 @@
+From f79e871c8d9fbe90b351f61b052878d98b999b1b Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Mon, 26 Jul 2021 18:07:25 +0100
+Subject: [PATCH] drm/vc4: Increase the core clock to a minimum of 500MHz
+
+The core clock needs to be raised temporarily during a modeset to
+500MHz. However, the HVS core clock requirement might be higher than
+500MHz. This rate will be enforced at the end of the mode setting,
+meaning that might might end up with a core clock rate lower than
+planned on the first mode set.
+
+Use the maximum value of 500MHz and the HVS core clock rate for our
+temporary boost to fix this issue.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_kms.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -348,11 +348,17 @@ vc4_atomic_complete_commit(struct drm_at
+ 	}
+ 
+ 	if (vc4->hvs && vc4->hvs->hvs5) {
++		unsigned long core_rate = max_t(unsigned long,
++						500000000,
++						hvs_state->core_clock_rate);
++
++		drm_dbg(dev, "Raising the core clock at %lu Hz\n", core_rate);
++
+ 		/*
+ 		 * Do a temporary request on the core clock during the
+ 		 * modeset.
+ 		 */
+-		core_req = clk_request_start(hvs->core_clk, 500000000);
++		core_req = clk_request_start(hvs->core_clk, core_rate);
+ 
+ 		/*
+ 		 * And remove the previous one based on the HVS
diff --git a/target/linux/bcm27xx/patches-5.10/950-0722-overlays-Update-and-rename-chipdip-i2s-master-dac.patch b/target/linux/bcm27xx/patches-5.10/950-0722-overlays-Update-and-rename-chipdip-i2s-master-dac.patch
new file mode 100644
index 0000000000..0ec62af31e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0722-overlays-Update-and-rename-chipdip-i2s-master-dac.patch
@@ -0,0 +1,148 @@
+From e83ebb02f24f527df4916309cdb0b8a3f7d07a79 Mon Sep 17 00:00:00 2001
+From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com>
+Date: Mon, 26 Jul 2021 14:43:11 +0300
+Subject: [PATCH] overlays: Update and rename chipdip-i2s-master-dac
+
+Simple card fragment removed, GPIO fragment added.
+
+Signed-off-by: Evgenij Sapunov <evgenij.sapunov@chipdip.ru>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  2 +-
+ arch/arm/boot/dts/overlays/README             |  6 +--
+ .../boot/dts/overlays/chipdip-dac-overlay.dts | 46 ++++++++++++++++
+ .../chipdip-i2s-master-dac-overlay.dts        | 53 -------------------
+ 4 files changed, 50 insertions(+), 57 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/chipdip-dac-overlay.dts
+ delete mode 100644 arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -31,7 +31,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	audremap.dtbo \
+ 	balena-fin.dtbo \
+ 	cap1106.dtbo \
+-	chipdip-i2s-master-dac.dtbo \
++	chipdip-dac.dtbo \
+ 	cma.dtbo \
+ 	dht11.dtbo \
+ 	dionaudio-loco.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -628,9 +628,9 @@ Load:   dtoverlay=cap1106,<param>=<val>
+ Params: int_pin                 GPIO pin for interrupt signal (default 23)
+ 
+ 
+-Name:   chipdip-i2s-master-dac
+-Info:   Configures Raspberry PI to work as I2S slave with BCLK=64Fs.
+-Load:   dtoverlay=chipdip-i2s-master-dac
++Name:   chipdip-dac
++Info:   Configures Chip Dip audio cards.
++Load:   dtoverlay=chipdip-dac
+ Params: <None>
+ 
+ 
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/chipdip-dac-overlay.dts
+@@ -0,0 +1,46 @@
++/*
++ * Device Tree overlay for ChipDip DAC
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2s>;
++		__overlay__ {
++			status = "okay";
++		};
++	};
++
++	fragment@1 {
++		target-path = "/";
++		__overlay__ {
++			spdif-transmitter {
++				#address-cells = <0>;
++				#size-cells = <0>;
++				#sound-dai-cells = <0>;
++				compatible = "linux,spdif-dit";
++				status = "okay";
++			};
++		};
++	};
++
++	fragment@2 {
++		target = <&sound>;
++		__overlay__ {
++			compatible = "chipdip,chipdip-dac";
++			i2s-controller = <&i2s>;
++			sr0-gpios = <&gpio 5 0>;
++			sr1-gpios = <&gpio 6 0>;
++			sr2-gpios = <&gpio 12 0>;
++			res0-gpios = <&gpio 24 0>;
++			res1-gpios = <&gpio 27 0>;
++			mute-gpios = <&gpio 4 0>;
++			sdwn-gpios = <&gpio 13 0>;
++			status = "okay";
++		};
++	};
++};
+--- a/arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
++++ /dev/null
+@@ -1,53 +0,0 @@
+-/*
+- * Device Tree overlay for ChipDip I2S master DAC
+- */
+-
+-/dts-v1/;
+-/plugin/;
+-
+-/ {
+-    compatible = "brcm,bcm2835";
+-    fragment@0 {
+-        target = <&sound>;
+-        __overlay__ {
+-            compatible = "simple-audio-card";
+-            simple-audio-card,name = "ChipDip I2S master DAC";
+-            status="okay";
+-            playback_link: simple-audio-card,dai-link@0 {
+-                format = "i2s";
+-		bitclock-master = <&p_codec_dai>;
+-                frame-master = <&p_codec_dai>;
+-                p_cpu_dai: cpu {
+-                        sound-dai = <&i2s>;
+-			dai-tdm-slot-num = <2>;
+-			dai-tdm-slot-width = <32>;
+-				};
+-
+-                p_codec_dai: codec {
+-                        sound-dai = <&codec_out>;
+-                };
+-            };
+-        };
+-    }; 
+-
+-    fragment@1 {
+-        target-path = "/";
+-        __overlay__ {
+-            codec_out: spdif-transmitter {
+-                #address-cells = <0>;
+-                #size-cells = <0>;
+-                #sound-dai-cells = <0>;
+-                compatible = "linux,spdif-dit";
+-                status = "okay";
+-            };
+-        };
+-    };
+- 
+-    fragment@2 {
+-        target = <&i2s>;
+-        __overlay__ {
+-            #sound-dai-cells = <0>;
+-            status = "okay";
+-        };
+-    };
+-}; 
diff --git a/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch
new file mode 100644
index 0000000000..25dbc74d20
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch
@@ -0,0 +1,325 @@
+From e17c3e2ccb04657ca00984477854a6a700fef01d Mon Sep 17 00:00:00 2001
+From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com>
+Date: Mon, 26 Jul 2021 14:45:59 +0300
+Subject: [PATCH] ASoC: bcm: Add chipdip-dac driver
+
+Driver chipdip-dac.c added into sound/soc/bcm/, files
+sound/soc/bcm/Kconfig and sound/soc/bcm/Makefile updated.
+
+Signed-off-by: Evgenij Sapunov <evgenij.sapunov@chipdip.ru>
+---
+ sound/soc/bcm/Kconfig       |   6 +
+ sound/soc/bcm/Makefile      |   3 +-
+ sound/soc/bcm/chipdip-dac.c | 275 ++++++++++++++++++++++++++++++++++++
+ 3 files changed, 283 insertions(+), 1 deletion(-)
+ create mode 100644 sound/soc/bcm/chipdip-dac.c
+
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -27,6 +27,12 @@ config SND_BCM63XX_I2S_WHISTLER
+ 
+ 	  If you don't know what to do here, say N
+ 
++config SND_BCM2708_SOC_CHIPDIP_DAC
++         tristate "Support for the ChipDip DAC"
++         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++         help
++          Say Y or M if you want to add support for the ChipDip DAC soundcard
++
+ config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
+ 	tristate "Support for Google voiceHAT soundcard"
+ 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -47,6 +47,7 @@ snd-soc-fe-pi-audio-objs := fe-pi-audio.
+ snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
+ snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
+ snd-soc-pifi-40-objs := pifi-40.o
++snd-soc-chipdip-dac-objs := chipdip-dac.o
+ 
+ obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD)  += snd-soc-googlevoicehat-codec.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
+@@ -78,4 +79,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO
+ obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o
+ obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o
+ obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o
+-
++obj-$(CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC) += snd-soc-chipdip-dac.o
+--- /dev/null
++++ b/sound/soc/bcm/chipdip-dac.c
+@@ -0,0 +1,275 @@
++/*
++ * ASoC Driver for ChipDip DAC
++ *
++ * Author:	Evgenij Sapunov
++ *		Copyright 2021
++ *		based on code by Milan Neskovic <info@justboom.co>
++ *		based on code by Jaikumar <jaikumar@cem-solutions.net>
++ *
++ * Thanks to Phil Elwell (pelwell) for help.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/gpio/consumer.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#define SR_BIT_0                  0 //sample rate bits
++#define SR_BIT_1                  1
++#define SR_BIT_2                  2
++#define BD_BIT_0                  3 //bit depth bits
++#define BD_BIT_1                  4
++
++#define SAMPLE_RATE_MASK_44_1     0
++#define SAMPLE_RATE_MASK_48       (1 << SR_BIT_0)
++#define SAMPLE_RATE_MASK_88_2     ((1 << SR_BIT_2) | (1 << SR_BIT_1))
++#define SAMPLE_RATE_MASK_96       (1 << SR_BIT_1)
++#define SAMPLE_RATE_MASK_176_4    ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
++#define SAMPLE_RATE_MASK_192      ((1 << SR_BIT_1) | (1 << SR_BIT_0))
++#define SAMPLE_RATE_MASK          ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
++
++#define BIT_DEPTH_MASK_16         0
++#define BIT_DEPTH_MASK_24         (1 << BD_BIT_0)
++#define BIT_DEPTH_MASK_32         (1 << BD_BIT_1)
++#define BIT_DEPTH_MASK            ((1 << BD_BIT_1) | (1 << BD_BIT_0))
++
++#define MUTE_ACTIVE               0
++#define MUTE_NOT_ACTIVE           1
++
++#define HW_PARAMS_GPIO_COUNT      5
++
++static struct gpio_desc *mute_gpio;
++static struct gpio_desc *sdwn_gpio;
++static struct gpio_desc *hw_params_gpios[HW_PARAMS_GPIO_COUNT];
++static int current_width;
++static int current_rate;
++
++static void snd_rpi_chipdip_dac_gpio_array_set(int value);
++static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value);
++
++static void snd_rpi_chipdip_dac_gpio_array_set(int value)
++{
++	int i = 0;
++
++	for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++)
++		snd_rpi_chipdip_dac_gpio_set(hw_params_gpios[i], ((value >> i) & 1));
++}
++
++static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value)
++{
++	if (gpio_item)
++		gpiod_set_value_cansleep(gpio_item, value);
++}
++
++static int snd_rpi_chipdip_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++	return 0;
++}
++
++static int snd_rpi_chipdip_dac_hw_params(struct snd_pcm_substream *substream,
++					 struct snd_pcm_hw_params *params)
++{
++	int ret = 0;
++	int gpio_change_pending = 0;
++	int sample_rate_state = 0;
++	int bit_depth_state = 0;
++	int param_value = params_width(params);
++	struct snd_soc_pcm_runtime *rtd = substream->private_data;
++
++	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 2 * 32);
++
++	if (current_width != param_value) {
++		current_width = param_value;
++		gpio_change_pending = 1;
++
++		switch (param_value) {
++		case 16:
++			bit_depth_state = BIT_DEPTH_MASK_16;
++			break;
++		case 24:
++			bit_depth_state = BIT_DEPTH_MASK_24;
++			break;
++		case 32:
++			bit_depth_state = BIT_DEPTH_MASK_32;
++			break;
++		default:
++			return -EINVAL;
++		}
++	}
++
++	param_value = params_rate(params);
++	if (current_rate != param_value) {
++		current_rate = param_value;
++		gpio_change_pending = 1;
++
++		switch (param_value) {
++		case 44100:
++			sample_rate_state = SAMPLE_RATE_MASK_44_1;
++			break;
++		case 48000:
++			sample_rate_state = SAMPLE_RATE_MASK_48;
++			break;
++		case 88200:
++			sample_rate_state = SAMPLE_RATE_MASK_88_2;
++			break;
++		case 96000:
++			sample_rate_state = SAMPLE_RATE_MASK_96;
++			break;
++		case 176400:
++			sample_rate_state = SAMPLE_RATE_MASK_176_4;
++			break;
++		case 192000:
++			sample_rate_state = SAMPLE_RATE_MASK_192;
++			break;
++		default:
++			return -EINVAL;
++		}
++	}
++
++	if (gpio_change_pending) {
++		snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_ACTIVE);
++		snd_rpi_chipdip_dac_gpio_array_set(bit_depth_state | sample_rate_state);
++		msleep(300);
++		snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_NOT_ACTIVE);
++	}
++
++	return ret;
++}
++
++static int snd_rpi_chipdip_dac_startup(struct snd_pcm_substream *substream)
++{
++	return 0;
++}
++
++static void snd_rpi_chipdip_dac_shutdown(struct snd_pcm_substream *substream)
++{
++
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_chipdip_dac_ops = {
++	.hw_params = snd_rpi_chipdip_dac_hw_params,
++	.startup = snd_rpi_chipdip_dac_startup,
++	.shutdown = snd_rpi_chipdip_dac_shutdown,
++};
++
++SND_SOC_DAILINK_DEFS(hifi,
++	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
++	DAILINK_COMP_ARRAY(COMP_CODEC("spdif-transmitter", "dit-hifi")),
++	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
++
++static struct snd_soc_dai_link snd_rpi_chipdip_dac_dai[] = {
++{
++	.name		= "ChipDip DAC",
++	.stream_name	= "ChipDip DAC HiFi",
++	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++				SND_SOC_DAIFMT_CBM_CFM,
++	.ops		= &snd_rpi_chipdip_dac_ops,
++	.init		= snd_rpi_chipdip_dac_init,
++	SND_SOC_DAILINK_REG(hifi),
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_chipdip_dac = {
++	.name         = "ChipDipDAC",
++	.driver_name  = "ChipdipDac",
++	.owner        = THIS_MODULE,
++	.dai_link     = snd_rpi_chipdip_dac_dai,
++	.num_links    = ARRAY_SIZE(snd_rpi_chipdip_dac_dai),
++};
++
++static int snd_rpi_chipdip_dac_probe(struct platform_device *pdev)
++{
++	int ret = 0;
++	int i = 0;
++
++	snd_rpi_chipdip_dac.dev = &pdev->dev;
++
++	if (pdev->dev.of_node) {
++		struct device_node *i2s_node;
++		struct snd_soc_dai_link *dai = &snd_rpi_chipdip_dac_dai[0];
++		i2s_node = of_parse_phandle(pdev->dev.of_node,
++					"i2s-controller", 0);
++
++		if (i2s_node) {
++			dai->cpus->dai_name = NULL;
++			dai->cpus->of_node = i2s_node;
++			dai->platforms->name = NULL;
++			dai->platforms->of_node = i2s_node;
++		}
++	}
++
++	hw_params_gpios[SR_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "sr0", GPIOD_OUT_LOW);
++	hw_params_gpios[SR_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "sr1", GPIOD_OUT_LOW);
++	hw_params_gpios[SR_BIT_2] = devm_gpiod_get_optional(&pdev->dev, "sr2", GPIOD_OUT_LOW);
++	hw_params_gpios[BD_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "res0", GPIOD_OUT_LOW);
++	hw_params_gpios[BD_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "res1", GPIOD_OUT_LOW);
++	mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW);
++	sdwn_gpio = devm_gpiod_get_optional(&pdev->dev, "sdwn", GPIOD_OUT_HIGH);
++
++	for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++) {
++		if (IS_ERR(hw_params_gpios[i])) {
++			ret = PTR_ERR(hw_params_gpios[i]);
++			dev_err(&pdev->dev, "failed to get hw_params gpio: %d\n", ret);
++			return ret;
++		}
++	}
++
++	if (IS_ERR(mute_gpio)) {
++		ret = PTR_ERR(mute_gpio);
++		dev_err(&pdev->dev, "failed to get mute gpio: %d\n", ret);
++		return ret;
++	}
++
++	if (IS_ERR(sdwn_gpio)) {
++		ret = PTR_ERR(sdwn_gpio);
++		dev_err(&pdev->dev, "failed to get sdwn gpio: %d\n", ret);
++		return ret;
++	}
++
++	snd_rpi_chipdip_dac_gpio_set(sdwn_gpio, 1);
++
++	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_chipdip_dac);
++	if (ret && ret != -EPROBE_DEFER)
++		dev_err(&pdev->dev,
++			"snd_soc_register_card() failed: %d\n", ret);
++
++	return ret;
++}
++
++static const struct of_device_id snd_rpi_chipdip_dac_of_match[] = {
++	{ .compatible = "chipdip,chipdip-dac", },
++	{},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_chipdip_dac_of_match);
++
++static struct platform_driver snd_rpi_chipdip_dac_driver = {
++	.driver = {
++		.name   = "snd-rpi-chipdip-dac",
++		.owner  = THIS_MODULE,
++		.of_match_table = snd_rpi_chipdip_dac_of_match,
++	},
++	.probe          = snd_rpi_chipdip_dac_probe,
++};
++
++module_platform_driver(snd_rpi_chipdip_dac_driver);
++
++MODULE_AUTHOR("Evgenij Sapunov <evgenij.sapunov@chipdip.ru>");
++MODULE_DESCRIPTION("ASoC Driver for ChipDip DAC");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/bcm27xx/patches-5.10/950-0724-char-vc_mem-Delete-dead-code.patch b/target/linux/bcm27xx/patches-5.10/950-0724-char-vc_mem-Delete-dead-code.patch
new file mode 100644
index 0000000000..1bba3f2271
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0724-char-vc_mem-Delete-dead-code.patch
@@ -0,0 +1,24 @@
+From 2fd0a43bfe9e3e53fe566759d6c2cb63ba557ad3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 28 Jul 2021 09:49:21 +0100
+Subject: [PATCH] char: vc_mem: Delete dead code
+
+There are no error exists once device_create has succeeded, and
+therefore no need to call device_destroy from vc_mem_init.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/char/broadcom/vc_mem.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/drivers/char/broadcom/vc_mem.c
++++ b/drivers/char/broadcom/vc_mem.c
+@@ -333,8 +333,6 @@ vc_mem_init(void)
+ 	vc_mem_inited = 1;
+ 	return 0;
+ 
+-	device_destroy(vc_mem_class, vc_mem_devnum);
+-
+ out_class_destroy:
+ 	class_destroy(vc_mem_class);
+ 	vc_mem_class = NULL;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0725-overlays-Add-Ablic-S35390A-to-i2c-rtc-and-gpio.patch b/target/linux/bcm27xx/patches-5.10/950-0725-overlays-Add-Ablic-S35390A-to-i2c-rtc-and-gpio.patch
new file mode 100644
index 0000000000..5f7c6f16a3
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0725-overlays-Add-Ablic-S35390A-to-i2c-rtc-and-gpio.patch
@@ -0,0 +1,73 @@
+From 886c341229589e7d46cbdb8194c23faee0e2a6f9 Mon Sep 17 00:00:00 2001
+From: WoodenNautilus <86767647+WoodenNautilus@users.noreply.github.com>
+Date: Tue, 3 Aug 2021 11:13:06 +0200
+Subject: [PATCH] overlays: Add Ablic S35390A to i2c-rtc and -gpio
+
+See: https://github.com/raspberrypi/linux/pull/4492
+
+Signed-off-by: Maxime Torrelli <maxime.torrelli@gmail.com>
+---
+ arch/arm/boot/dts/overlays/README              |  4 ++++
+ arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi | 17 ++++++++++++++++-
+ 2 files changed, 20 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1424,6 +1424,8 @@ Params: abx80x                  Select o
+ 
+         sd3078                  Select the ZXW Shenzhen whwave SD3078 device
+ 
++        s35390a                 Select the ABLIC S35390A device
++
+         i2c0                    Choose the I2C0 bus on GPIOs 0&1
+ 
+         i2c_csi_dsi             Choose the I2C0 bus on GPIOs 44&45
+@@ -1487,6 +1489,8 @@ Params: abx80x                  Select o
+ 
+         sd3078                  Select the ZXW Shenzhen whwave SD3078 device
+ 
++        s35390a                 Select the ABLIC S35390A device
++
+         addr                    Sets the address for the RTC. Note that the
+                                 device must be configured to use the specified
+                                 address.
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
+@@ -243,6 +243,19 @@
+ 		};
+ 	};
+ 
++	fragment@18 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			s35390a: s35390a@30 {
++				compatible = "ablic,s35390a";
++				reg = <0x30>;
++			};
++		};
++	};
++
+ 	__overrides__ {
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+@@ -262,6 +275,7 @@
+ 		sd3078 = <0>,"+14";
+ 		pcf85063 = <0>,"+15";
+ 		pcf85063a = <0>,"+16";
++		s35390a = <0>,"+18";
+ 
+ 		addr = <&abx80x>, "reg:0",
+ 		       <&ds1307>, "reg:0",
+@@ -272,7 +286,8 @@
+ 		       <&pcf8523>, "reg:0",
+ 		       <&pcf8563>, "reg:0",
+ 		       <&m41t62>, "reg:0",
+-		       <&rv1805>, "reg:0";
++		       <&rv1805>, "reg:0",
++		       <&s35390a>, "reg:0";
+ 		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+ 				     <&rv1805>,"abracon,tc-diode";
+ 		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0726-dtoverlays-Add-orientation-and-rotation-parameter-to.patch b/target/linux/bcm27xx/patches-5.10/950-0726-dtoverlays-Add-orientation-and-rotation-parameter-to.patch
new file mode 100644
index 0000000000..761b368b44
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0726-dtoverlays-Add-orientation-and-rotation-parameter-to.patch
@@ -0,0 +1,210 @@
+From 9637391eb4ad9410f4a366b4d78c7cfd909572da Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Mon, 2 Aug 2021 14:30:15 +0100
+Subject: [PATCH] dtoverlays: Add orientation (and rotation) parameter
+ to sensor overlays
+
+Add the orientation parameter to all the camera sensor overlays to
+avoid libcamera complaining, and add the rotation parameter where
+it hadn't been added before.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             | 26 ++++++++++++++++---
+ arch/arm/boot/dts/overlays/imx219-overlay.dts |  2 ++
+ .../boot/dts/overlays/imx290_327-overlay.dtsi |  5 ++++
+ .../boot/dts/overlays/imx477_378-overlay.dtsi |  2 ++
+ arch/arm/boot/dts/overlays/ov5647-overlay.dts |  2 ++
+ arch/arm/boot/dts/overlays/ov7251-overlay.dts |  8 ++++++
+ arch/arm/boot/dts/overlays/ov9281-overlay.dts |  7 +++++
+ 7 files changed, 48 insertions(+), 4 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1682,6 +1682,8 @@ Info:   Sony IMX219 camera module.
+ Load:   dtoverlay=imx219,<param>=<val>
+ Params: rotation                Mounting rotation of the camera sensor (0 or
+                                 180, default 180)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   imx290
+@@ -1698,6 +1700,10 @@ Params: 4lane                   Enable 4
+                                 (the default), whilst those from Innomaker use
+                                 74.25MHz.
+         mono                    Denote that the module is a mono sensor.
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
++        rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 0)
+ 
+ 
+ Name:   imx378
+@@ -1707,6 +1713,8 @@ Info:   Sony IMX378 camera module.
+ Load:   dtoverlay=imx378,<param>=<val>
+ Params: rotation                Mounting rotation of the camera sensor (0 or
+                                 180, default 180)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   imx477
+@@ -1716,6 +1724,8 @@ Info:   Sony IMX477 camera module.
+ Load:   dtoverlay=imx477,<param>=<val>
+ Params: rotation                Mounting rotation of the camera sensor (0 or
+                                 180, default 180)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   iqaudio-codec
+@@ -2141,22 +2151,30 @@ Info:   Omnivision OV5647 camera module.
+ Load:   dtoverlay=ov5647,<param>=<val>
+ Params: rotation                Mounting rotation of the camera sensor (0 or
+                                 180, default 0)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   ov7251
+ Info:   Omnivision OV7251 camera module.
+         Uses Unicam 1, which is the standard camera connector on most Pi
+         variants.
+-Load:   dtoverlay=ov7251
+-Params: <None>
++Load:   dtoverlay=ov7251,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 0)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   ov9281
+ Info:   Omnivision OV9281 camera module.
+         Uses Unicam 1, which is the standard camera connector on most Pi
+         variants.
+-Load:   dtoverlay=ov9281
+-Params: <None>
++Load:   dtoverlay=ov9281,<param>=<val>
++Params: rotation                Mounting rotation of the camera sensor (0 or
++                                180, default 0)
++        orientation             Sensor orientation (0 = front, 1 = rear,
++                                2 = external, default external)
+ 
+ 
+ Name:   papirus
+--- a/arch/arm/boot/dts/overlays/imx219-overlay.dts
++++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
+@@ -28,6 +28,7 @@
+ 				VDDL-supply = <&imx219_vddl>;	/* 1.2v */
+ 
+ 				rotation = <180>;
++				orientation = <2>;
+ 
+ 				port {
+ 					imx219_0: endpoint {
+@@ -109,5 +110,6 @@
+ 
+ 	__overrides__ {
+ 		rotation = <&imx219>,"rotation:0";
++		orientation = <&imx219>,"orientation:0";
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
++++ b/arch/arm/boot/dts/overlays/imx290_327-overlay.dtsi
+@@ -24,6 +24,9 @@
+ 				clock-names = "xclk";
+ 				clock-frequency = <37125000>;
+ 
++				rotation = <0>;
++				orientation = <2>;
++
+ 				vdda-supply = <&cam1_reg>;	/* 2.8v */
+ 				vdddo-supply = <&imx290_vdddo>;	/* 1.8v */
+ 				vddd-supply = <&imx290_vddd>;	/* 1.5v */
+@@ -135,5 +138,7 @@
+ 		4lane = <0>, "-6+7-8+9";
+ 		clock-frequency = <&imx290_clk>,"clock-frequency:0",
+ 				  <&imx290>,"clock-frequency:0";
++		rotation = <&imx290>,"rotation:0";
++		orientation = <&imx290>,"orientation:0";
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/imx477_378-overlay.dtsi
++++ b/arch/arm/boot/dts/overlays/imx477_378-overlay.dtsi
+@@ -23,6 +23,7 @@
+ 				VDDL-supply = <&imx477_vddl>;	/* 1.8v */
+ 
+ 				rotation = <180>;
++				orientation = <2>;
+ 
+ 				port {
+ 					imx477_0: endpoint {
+@@ -104,5 +105,6 @@
+ 
+ 	__overrides__ {
+ 		rotation = <&imx477>,"rotation:0";
++		orientation = <&imx477>,"orientation:0";
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/ov5647-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
+@@ -22,6 +22,7 @@
+ 				clocks = <&ov5647_clk>;
+ 
+ 				rotation = <0>;
++				orientation = <2>;
+ 
+ 				port {
+ 					ov5647_0: endpoint {
+@@ -88,5 +89,6 @@
+ 
+ 	__overrides__ {
+ 		rotation = <&ov5647>,"rotation:0";
++		orientation = <&ov5647>,"orientation:0";
+ 	};
+ };
+--- a/arch/arm/boot/dts/overlays/ov7251-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ov7251-overlay.dts
+@@ -28,6 +28,9 @@
+ 				vdda-supply = <&cam1_reg>;
+ 				vddd-supply = <&ov7251_dvdd>;
+ 
++				rotation = <0>;
++				orientation = <2>;
++
+ 				port {
+ 					ov7251_0: endpoint {
+ 						remote-endpoint = <&csi1_ep>;
+@@ -102,4 +105,9 @@
+ 			regulator-max-microvolt = <2800000>;
+ 		};
+ 	};
++
++	__overrides__ {
++		rotation = <&ov7251>,"rotation:0";
++		orientation = <&ov7251>,"orientation:0";
++	};
+ };
+--- a/arch/arm/boot/dts/overlays/ov9281-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ov9281-overlay.dts
+@@ -27,6 +27,9 @@
+ 				dovdd-supply = <&ov9281_dovdd>;
+ 				dvdd-supply = <&ov9281_dvdd>;
+ 
++				rotation = <0>;
++				orientation = <2>;
++
+ 				port {
+ 					ov9281_0: endpoint {
+ 						remote-endpoint = <&csi1_ep>;
+@@ -103,4 +106,8 @@
+ 		};
+ 	};
+ 
++	__overrides__ {
++		rotation = <&ov9281>,"rotation:0";
++		orientation = <&ov9281>,"orientation:0";
++	};
+ };
diff --git a/target/linux/bcm27xx/patches-5.10/950-0727-media-i2c-imx290-Add-fwnode-properties-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0727-media-i2c-imx290-Add-fwnode-properties-controls.patch
new file mode 100644
index 0000000000..15f1e6d84a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0727-media-i2c-imx290-Add-fwnode-properties-controls.patch
@@ -0,0 +1,48 @@
+From 5aeffc428adfd3a97014056e36fd5496119da743 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 3 Aug 2021 11:25:59 +0100
+Subject: [PATCH] media: i2c: imx290: Add fwnode properties controls
+
+Add call to v4l2_ctrl_new_fwnode_properties to read and
+create the fwnode based controls.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/imx290.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/imx290.c
++++ b/drivers/media/i2c/imx290.c
+@@ -1242,6 +1242,7 @@ static const struct of_device_id imx290_
+ 
+ static int imx290_probe(struct i2c_client *client)
+ {
++	struct v4l2_fwnode_device_properties props;
+ 	struct device *dev = &client->dev;
+ 	struct fwnode_handle *endpoint;
+ 	/* Only CSI2 is supported for now: */
+@@ -1363,7 +1364,7 @@ static int imx290_probe(struct i2c_clien
+ 	 */
+ 	imx290_entity_init_cfg(&imx290->sd, NULL);
+ 
+-	v4l2_ctrl_handler_init(&imx290->ctrls, 9);
++	v4l2_ctrl_handler_init(&imx290->ctrls, 11);
+ 
+ 	v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ 			  V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0);
+@@ -1411,6 +1412,15 @@ static int imx290_probe(struct i2c_clien
+ 				     ARRAY_SIZE(imx290_test_pattern_menu) - 1,
+ 				     0, 0, imx290_test_pattern_menu);
+ 
++	ret = v4l2_fwnode_device_parse(&client->dev, &props);
++	if (ret)
++		goto free_ctrl;
++
++	ret = v4l2_ctrl_new_fwnode_properties(&imx290->ctrls, &imx290_ctrl_ops,
++					      &props);
++	if (ret)
++		goto free_ctrl;
++
+ 	imx290->sd.ctrl_handler = &imx290->ctrls;
+ 
+ 	if (imx290->ctrls.error) {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0728-media-i2c-ov9281-Add-fwnode-properties-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0728-media-i2c-ov9281-Add-fwnode-properties-controls.patch
new file mode 100644
index 0000000000..8be530dd37
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0728-media-i2c-ov9281-Add-fwnode-properties-controls.patch
@@ -0,0 +1,56 @@
+From d7afaa8a210db98544d53fc319187191ae9807b4 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 3 Aug 2021 11:30:58 +0100
+Subject: [PATCH] media: i2c: ov9281: Add fwnode properties controls
+
+Add call to v4l2_ctrl_new_fwnode_properties to read and
+create the fwnode based controls.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov9281.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov9281.c
++++ b/drivers/media/i2c/ov9281.c
+@@ -25,6 +25,7 @@
+ #include <media/media-entity.h>
+ #include <media/v4l2-async.h>
+ #include <media/v4l2-ctrls.h>
++#include <media/v4l2-fwnode.h>
+ #include <media/v4l2-subdev.h>
+ 
+ #define OV9281_LINK_FREQ_400MHZ		400000000
+@@ -1020,6 +1021,7 @@ static const struct v4l2_ctrl_ops ov9281
+ 
+ static int ov9281_initialize_controls(struct ov9281 *ov9281)
+ {
++	struct v4l2_fwnode_device_properties props;
+ 	const struct ov9281_mode *mode;
+ 	struct v4l2_ctrl_handler *handler;
+ 	struct v4l2_ctrl *ctrl;
+@@ -1029,7 +1031,7 @@ static int ov9281_initialize_controls(st
+ 
+ 	handler = &ov9281->ctrl_handler;
+ 	mode = ov9281->cur_mode;
+-	ret = v4l2_ctrl_handler_init(handler, 9);
++	ret = v4l2_ctrl_handler_init(handler, 11);
+ 	if (ret)
+ 		return ret;
+ 	handler->lock = &ov9281->mutex;
+@@ -1091,6 +1093,15 @@ static int ov9281_initialize_controls(st
+ 		goto err_free_handler;
+ 	}
+ 
++	ret = v4l2_fwnode_device_parse(&ov9281->client->dev, &props);
++	if (ret)
++		goto err_free_handler;
++
++	ret = v4l2_ctrl_new_fwnode_properties(handler, &ov9281_ctrl_ops,
++					      &props);
++	if (ret)
++		goto err_free_handler;
++
+ 	ov9281->subdev.ctrl_handler = handler;
+ 
+ 	return 0;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0729-media-i2c-ov7251-Add-fwnode-properties-controls.patch b/target/linux/bcm27xx/patches-5.10/950-0729-media-i2c-ov7251-Add-fwnode-properties-controls.patch
new file mode 100644
index 0000000000..eb64d31d49
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0729-media-i2c-ov7251-Add-fwnode-properties-controls.patch
@@ -0,0 +1,48 @@
+From f58356e67346323ffd3061aea7ca16c0f0f6a72e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 3 Aug 2021 11:33:33 +0100
+Subject: [PATCH] media: i2c: ov7251: Add fwnode properties controls
+
+Add call to v4l2_ctrl_new_fwnode_properties to read and
+create the fwnode based controls.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/media/i2c/ov7251.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/i2c/ov7251.c
++++ b/drivers/media/i2c/ov7251.c
+@@ -1253,6 +1253,7 @@ static const struct v4l2_subdev_ops ov72
+ 
+ static int ov7251_probe(struct i2c_client *client)
+ {
++	struct v4l2_fwnode_device_properties props;
+ 	struct device *dev = &client->dev;
+ 	struct fwnode_handle *endpoint;
+ 	struct ov7251 *ov7251;
+@@ -1338,7 +1339,7 @@ static int ov7251_probe(struct i2c_clien
+ 
+ 	mutex_init(&ov7251->lock);
+ 
+-	v4l2_ctrl_handler_init(&ov7251->ctrls, 7);
++	v4l2_ctrl_handler_init(&ov7251->ctrls, 9);
+ 	ov7251->ctrls.lock = &ov7251->lock;
+ 
+ 	v4l2_ctrl_new_std(&ov7251->ctrls, &ov7251_ctrl_ops,
+@@ -1374,6 +1375,15 @@ static int ov7251_probe(struct i2c_clien
+ 		goto free_ctrl;
+ 	}
+ 
++	ret = v4l2_fwnode_device_parse(&client->dev, &props);
++	if (ret)
++		goto free_ctrl;
++
++	ret = v4l2_ctrl_new_fwnode_properties(&ov7251->ctrls, &ov7251_ctrl_ops,
++					      &props);
++	if (ret)
++		goto free_ctrl;
++
+ 	v4l2_i2c_subdev_init(&ov7251->sd, client, &ov7251_subdev_ops);
+ 	ov7251->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ 	ov7251->pad.flags = MEDIA_PAD_FL_SOURCE;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0730-overlays-Reduce-Pi-4-vc4-CMA-size-to-320MB.patch b/target/linux/bcm27xx/patches-5.10/950-0730-overlays-Reduce-Pi-4-vc4-CMA-size-to-320MB.patch
new file mode 100644
index 0000000000..393c9c3273
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0730-overlays-Reduce-Pi-4-vc4-CMA-size-to-320MB.patch
@@ -0,0 +1,42 @@
+From 0d5d8f373125e5bdf331d8fc579b2cf18171c1c0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 3 Aug 2021 11:32:30 +0100
+Subject: [PATCH] overlays: Reduce Pi 4 vc4 CMA size to 320MB
+
+Reduce the default CMA allocation requested by the vc4-kms-v3d-pi4 and
+vc4-fkms-v3d-pi4 overlays to 320MB.
+
+Use magic values of the form (<n>*64 - 4)MB to encode default values
+of <n>*64MB, allowing these defaults to be distinguished from values
+set explicitly by the user with the usual overlay parameters (e.g.
+"cma-384"). Only default values will be capped if the Pi RAM is too
+small or the gpu_mem setting too large for it to be viable.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/vc4-fkms-v3d-pi4-overlay.dts | 2 +-
+ arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts  | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/vc4-fkms-v3d-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-pi4-overlay.dts
+@@ -8,7 +8,7 @@
+ #include "cma-overlay.dts"
+ 
+ &frag0 {
+-       size = <(512*1024*1024)>;
++	size = <((320-4)*1024*1024)>;
+ };
+ 
+ / {
+--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-pi4-overlay.dts
+@@ -10,7 +10,7 @@
+ #include "cma-overlay.dts"
+ 
+ &frag0 {
+-       size = <(512*1024*1024)>;
++	size = <((320-4)*1024*1024)>;
+ };
+ 
+ / {
diff --git a/target/linux/bcm27xx/patches-5.10/950-0731-Revert-overlays-Update-display-GPIO-declarations-for.patch b/target/linux/bcm27xx/patches-5.10/950-0731-Revert-overlays-Update-display-GPIO-declarations-for.patch
new file mode 100644
index 0000000000..e62d1f8a71
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0731-Revert-overlays-Update-display-GPIO-declarations-for.patch
@@ -0,0 +1,24 @@
+From c90422ce5c24b9f1f4c03e935918e85bef6cb336 Mon Sep 17 00:00:00 2001
+From: Ahmet Inan <inan@aicodix.de>
+Date: Wed, 4 Aug 2021 10:10:11 +0200
+Subject: [PATCH] Revert "overlays: Update display GPIO declarations"
+ for Goodix
+
+This reverts commit b7d685c0b1bd1b98af0e9c1f5d43769982bdbfb2 for Goodix
+
+Signed-off-by: Ahmet Inan <inan@aicodix.de>
+---
+ arch/arm/boot/dts/overlays/goodix-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/goodix-overlay.dts
++++ b/arch/arm/boot/dts/overlays/goodix-overlay.dts
+@@ -31,7 +31,7 @@
+ 				interrupt-parent = <&gpio>;
+ 				interrupts = <4 2>; // high-to-low edge triggered
+ 				irq-gpios = <&gpio 4 0>; // Pin7 on GPIO header
+-				reset-gpios = <&gpio 17 1>; // Pin11 on GPIO header
++				reset-gpios = <&gpio 17 0>; // Pin11 on GPIO header
+ 			};
+ 		};
+ 	};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0732-overlays-Add-midi-uart-2345-overlay.dts.patch b/target/linux/bcm27xx/patches-5.10/950-0732-overlays-Add-midi-uart-2345-overlay.dts.patch
new file mode 100644
index 0000000000..addbb1a2ed
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0732-overlays-Add-midi-uart-2345-overlay.dts.patch
@@ -0,0 +1,234 @@
+From 37f172b47784a4debc62cb71974eac303031e69c Mon Sep 17 00:00:00 2001
+From: pjx3 <pjx3@users.noreply.github.com>
+Date: Sun, 8 Aug 2021 20:09:46 +0100
+Subject: [PATCH] overlays: Add midi-uart{2345}-overlay.dts
+
+Added overlays for enabling MIDI baudrates on additional UARTs
+
+Signed-off-by: Pete Marshall <petemarshall303@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  4 ++
+ arch/arm/boot/dts/overlays/README             | 28 ++++++++++++++
+ .../boot/dts/overlays/midi-uart2-overlay.dts  | 37 ++++++++++++++++++
+ .../boot/dts/overlays/midi-uart3-overlay.dts  | 38 +++++++++++++++++++
+ .../boot/dts/overlays/midi-uart4-overlay.dts  | 38 +++++++++++++++++++
+ .../boot/dts/overlays/midi-uart5-overlay.dts  | 38 +++++++++++++++++++
+ 6 files changed, 183 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart2-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart3-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart4-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/midi-uart5-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -123,6 +123,10 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	merus-amp.dtbo \
+ 	midi-uart0.dtbo \
+ 	midi-uart1.dtbo \
++	midi-uart2.dtbo \
++	midi-uart3.dtbo \
++	midi-uart4.dtbo \
++	midi-uart5.dtbo \
+ 	minipitft13.dtbo \
+ 	miniuart-bt.dtbo \
+ 	mmc.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2088,6 +2088,34 @@ Load:   dtoverlay=midi-uart1
+ Params: <None>
+ 
+ 
++Name:   midi-uart2
++Info:   Configures UART2 (ttyAMA1) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart2
++Params: <None>
++
++
++Name:   midi-uart3
++Info:   Configures UART3 (ttyAMA2) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart3
++Params: <None>
++
++
++Name:   midi-uart4
++Info:   Configures UART4 (ttyAMA3) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart4
++Params: <None>
++
++
++Name:   midi-uart5
++Info:   Configures UART5 (ttyAMA4) so that a requested 38.4kbaud actually gets
++        31.25kbaud, the frequency required for MIDI
++Load:   dtoverlay=midi-uart5
++Params: <None>
++
++
+ Name:   minipitft13
+ Info:   Overlay for AdaFruit Mini Pi 1.3" TFT via SPI using fbtft driver.
+ Load:   dtoverlay=minipitft13,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart2-overlay.dts
+@@ -0,0 +1,37 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target-path = "/";
++                __overlay__ {
++                        midi_clk: midi_clk2 {
++                                compatible = "fixed-clock";
++                                #clock-cells = <0>;
++                                clock-output-names = "uart2_pclk";
++                                clock-frequency = <58982400>;
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&uart2>;
++                __overlay__ {
++                        clocks = <&midi_clk>,
++                                 <&clocks BCM2835_CLOCK_VPU>;
++                };
++        };
++};
++
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart3-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target-path = "/";
++                __overlay__ {
++                        midi_clk: midi_clk3 {
++                                compatible = "fixed-clock";
++                                #clock-cells = <0>;
++                                clock-output-names = "uart3_pclk";
++                                clock-frequency = <58982400>;
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&uart3>;
++                __overlay__ {
++                        clocks = <&midi_clk>,
++                                 <&clocks BCM2835_CLOCK_VPU>;
++                };
++        };
++};
++
++
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart4-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target-path = "/";
++                __overlay__ {
++                        midi_clk: midi_clk4 {
++                                compatible = "fixed-clock";
++                                #clock-cells = <0>;
++                                clock-output-names = "uart4_pclk";
++                                clock-frequency = <58982400>;
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&uart4>;
++                __overlay__ {
++                        clocks = <&midi_clk>,
++                                 <&clocks BCM2835_CLOCK_VPU>;
++                };
++        };
++};
++
++
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/midi-uart5-overlay.dts
+@@ -0,0 +1,38 @@
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/clock/bcm2835.h>
++
++/*
++ * Fake a higher clock rate to get a larger divisor, and thereby a lower
++ * baudrate. The real clock is 48MHz, which we scale so that requesting
++ * 38.4kHz results in an actual 31.25kHz.
++ *
++ *   48000000*38400/31250 = 58982400
++ */
++
++/{
++        compatible = "brcm,bcm2835";
++
++        fragment@0 {
++                target-path = "/";
++                __overlay__ {
++                        midi_clk: midi_clk5 {
++                                compatible = "fixed-clock";
++                                #clock-cells = <0>;
++                                clock-output-names = "uart5_pclk";
++                                clock-frequency = <58982400>;
++                        };
++                };
++        };
++
++        fragment@1 {
++                target = <&uart5>;
++                __overlay__ {
++                        clocks = <&midi_clk>,
++                                 <&clocks BCM2835_CLOCK_VPU>;
++                };
++        };
++};
++
++
diff --git a/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch b/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch
new file mode 100644
index 0000000000..6e43bebf5e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0733-usb-xhci-workaround-for-bogus-SET_DEQ_PENDING-endpoi.patch
@@ -0,0 +1,41 @@
+From dedd960b894217ae0960a7ac493def9edfa96905 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.com>
+Date: Wed, 11 Aug 2021 15:33:57 +0100
+Subject: [PATCH] usb: xhci: workaround for bogus SET_DEQ_PENDING
+ endpoint state
+
+See https://github.com/raspberrypi/linux/issues/3981
+
+An unknown unsafe memory access can result in the ep_state variable
+in xhci_virt_ep being trampled with a stuck SET_DEQ_PENDING state
+despite successful completion of a Set TR Deq Pointer command.
+
+All URB enqueue/dequeue calls for the endpoint will fail in this state
+so no transfers are possible until the device is reconnected.
+
+As a workaround, clear the flag if we see it set and issue a new Set
+TR Deq command anyway - this should be harmless, as a prior Set TR Deq
+command will only have been issued in the Stopped state, and if the
+endpoint is Running then the controller is required to ignore it and
+respond with a Context State Error event TRB.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ drivers/usb/host/xhci-ring.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -4255,9 +4255,9 @@ void xhci_queue_new_dequeue_state(struct
+ 	}
+ 	ep = &xhci->devs[slot_id]->eps[ep_index];
+ 	if ((ep->ep_state & SET_DEQ_PENDING)) {
+-		xhci_warn(xhci, "WARN Cannot submit Set TR Deq Ptr\n");
+-		xhci_warn(xhci, "A Set TR Deq Ptr command is pending.\n");
+-		return;
++		xhci_warn(xhci, "WARN A Set TR Deq Ptr command is pending for slot %u ep %u\n",
++			  slot_id, ep_index);
++		ep->ep_state &= ~SET_DEQ_PENDING;
+ 	}
+ 
+ 	/* This function gets called from contexts where it cannot sleep */
diff --git a/target/linux/bcm27xx/patches-5.10/950-0734-overlays-Add-TI-BQ32000-RTC-support.patch b/target/linux/bcm27xx/patches-5.10/950-0734-overlays-Add-TI-BQ32000-RTC-support.patch
new file mode 100644
index 0000000000..505c72d299
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0734-overlays-Add-TI-BQ32000-RTC-support.patch
@@ -0,0 +1,102 @@
+From 1afb520ffaf9667f18336aa4e983a2dd95462f20 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 16 Aug 2021 11:11:35 +0100
+Subject: [PATCH] overlays: Add TI BQ32000 RTC support
+
+See: https://github.com/raspberrypi/linux/issues/4531
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README             | 10 ++++++++++
+ .../arm/boot/dts/overlays/i2c-rtc-common.dtsi | 20 ++++++++++++++++++-
+ 2 files changed, 29 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1390,6 +1390,8 @@ Params: abx80x                  Select o
+                                   AB0801, AB0803, AB0804, AB0805,
+                                   AB1801, AB1803, AB1804, AB1805
+ 
++        bq32000                 Select the TI BQ32000 device
++
+         ds1307                  Select the DS1307 device
+ 
+         ds1339                  Select the DS1339 device
+@@ -1434,6 +1436,9 @@ Params: abx80x                  Select o
+                                 device must be configured to use the specified
+                                 address.
+ 
++        trickle-diode-disable   Do not use the internal trickle charger diode
++                                (BQ32000 only)
++
+         trickle-diode-type      Diode type for trickle charge - "standard" or
+                                 "schottky" (ABx80x and RV1805 only)
+ 
+@@ -1455,6 +1460,8 @@ Params: abx80x                  Select o
+                                   AB0801, AB0803, AB0804, AB0805,
+                                   AB1801, AB1803, AB1804, AB1805
+ 
++        bq32000                 Select the TI BQ32000 device
++
+         ds1307                  Select the DS1307 device
+ 
+         ds1339                  Select the DS1339 device
+@@ -1495,6 +1502,9 @@ Params: abx80x                  Select o
+                                 device must be configured to use the specified
+                                 address.
+ 
++        trickle-diode-disable   Do not use the internal trickle charger diode
++                                (BQ32000 only)
++
+         trickle-diode-type      Diode type for trickle charge - "standard" or
+                                 "schottky" (ABx80x and RV1805 only)
+ 
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-common.dtsi
+@@ -256,6 +256,21 @@
+ 		};
+ 	};
+ 
++	fragment@19 {
++		target = <&i2cbus>;
++		__dormant__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++
++			bq32000: bq32000@68 {
++				compatible = "ti,bq32000";
++				trickle-resistor-ohms = <0>;
++				reg = <0x68>;
++			};
++		};
++	};
++
++
+ 	__overrides__ {
+ 		abx80x = <0>,"+0";
+ 		ds1307 = <0>,"+1";
+@@ -276,6 +291,7 @@
+ 		pcf85063 = <0>,"+15";
+ 		pcf85063a = <0>,"+16";
+ 		s35390a = <0>,"+18";
++		bq32000 = <0>,"+19";
+ 
+ 		addr = <&abx80x>, "reg:0",
+ 		       <&ds1307>, "reg:0",
+@@ -288,13 +304,15 @@
+ 		       <&m41t62>, "reg:0",
+ 		       <&rv1805>, "reg:0",
+ 		       <&s35390a>, "reg:0";
++		trickle-diode-disable = <&bq32000>,"trickle-diode-disable?";
+ 		trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+ 				     <&rv1805>,"abracon,tc-diode";
+ 		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
+ 					<&ds1340>,"trickle-resistor-ohms:0",
+ 					<&abx80x>,"abracon,tc-resistor:0",
+ 					<&rv3028>,"trickle-resistor-ohms:0",
+-					<&rv1805>,"abracon,tc-resistor:0";
++					<&rv1805>,"abracon,tc-resistor:0",
++					<&bq32000>,"abracon,tc-resistor:0";
+ 		backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
+ 		wakeup-source = <&ds1339>,"wakeup-source?",
+ 				<&ds3231>,"wakeup-source?",
diff --git a/target/linux/bcm27xx/patches-5.10/950-0735-xhci-guard-accesses-to-ep_state-in-xhci_endpoint_res.patch b/target/linux/bcm27xx/patches-5.10/950-0735-xhci-guard-accesses-to-ep_state-in-xhci_endpoint_res.patch
new file mode 100644
index 0000000000..d9a51605d4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0735-xhci-guard-accesses-to-ep_state-in-xhci_endpoint_res.patch
@@ -0,0 +1,43 @@
+From 9d51ba9909129465493d56a7134ce4220d2e69e9 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.com>
+Date: Mon, 16 Aug 2021 14:43:06 +0100
+Subject: [PATCH] xhci: guard accesses to ep_state in
+ xhci_endpoint_reset()
+
+See https://github.com/raspberrypi/linux/issues/3981
+
+Two read-modify-write cycles on ep->ep_state are not guarded by
+xhci->lock. Fix these.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
+---
+ drivers/usb/host/xhci.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/usb/host/xhci.c
++++ b/drivers/usb/host/xhci.c
+@@ -3269,10 +3269,13 @@ static void xhci_endpoint_reset(struct u
+ 		return;
+ 
+ 	/* Bail out if toggle is already being cleared by a endpoint reset */
++	spin_lock_irqsave(&xhci->lock, flags);
+ 	if (ep->ep_state & EP_HARD_CLEAR_TOGGLE) {
+ 		ep->ep_state &= ~EP_HARD_CLEAR_TOGGLE;
++		spin_unlock_irqrestore(&xhci->lock, flags);
+ 		return;
+ 	}
++	spin_unlock_irqrestore(&xhci->lock, flags);
+ 	/* Only interrupt and bulk ep's use data toggle, USB2 spec 5.5.4-> */
+ 	if (usb_endpoint_xfer_control(&host_ep->desc) ||
+ 	    usb_endpoint_xfer_isoc(&host_ep->desc))
+@@ -3358,8 +3361,10 @@ static void xhci_endpoint_reset(struct u
+ 	xhci_free_command(xhci, cfg_cmd);
+ cleanup:
+ 	xhci_free_command(xhci, stop_cmd);
++	spin_lock_irqsave(&xhci->lock, flags);
+ 	if (ep->ep_state & EP_SOFT_CLEAR_TOGGLE)
+ 		ep->ep_state &= ~EP_SOFT_CLEAR_TOGGLE;
++	spin_unlock_irqrestore(&xhci->lock, flags);
+ }
+ 
+ static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,
diff --git a/target/linux/bcm27xx/patches-5.10/950-0736-ARM-dts-Adapt-to-upstream-changes.patch b/target/linux/bcm27xx/patches-5.10/950-0736-ARM-dts-Adapt-to-upstream-changes.patch
new file mode 100644
index 0000000000..9bb21fda87
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0736-ARM-dts-Adapt-to-upstream-changes.patch
@@ -0,0 +1,304 @@
+From e6942acef85ed8ce64d64147aa2328fbc67065c9 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 27 Jul 2021 22:22:52 +0100
+Subject: [PATCH] ARM: dts: Adapt to upstream changes
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2708-rpi-b-plus.dts   |  4 ++--
+ arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts   |  2 +-
+ arch/arm/boot/dts/bcm2708-rpi-b.dts        |  2 +-
+ arch/arm/boot/dts/bcm2708-rpi-cm.dtsi      |  2 +-
+ arch/arm/boot/dts/bcm2708-rpi-zero-w.dts   |  2 +-
+ arch/arm/boot/dts/bcm2708-rpi-zero.dts     |  2 +-
+ arch/arm/boot/dts/bcm2709-rpi-2-b.dts      |  4 ++--
+ arch/arm/boot/dts/bcm270x.dtsi             |  2 +-
+ arch/arm/boot/dts/bcm2710-rpi-2-b.dts      |  4 ++--
+ arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts |  4 ++--
+ arch/arm/boot/dts/bcm2710-rpi-3-b.dts      |  4 ++--
+ arch/arm/boot/dts/bcm2710-rpi-cm3.dts      |  2 +-
+ arch/arm/boot/dts/bcm2711-rpi-4-b.dts      |  4 ++--
+ arch/arm/boot/dts/bcm2711-rpi-400.dts      | 10 ++++++----
+ arch/arm/boot/dts/bcm2711-rpi-cm4.dts      | 10 ++++++----
+ 15 files changed, 31 insertions(+), 27 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+@@ -90,13 +90,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 47 0>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "input";
+ 		gpios = <&gpio 35 0>;
+--- a/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b-rev1.dts
+@@ -103,7 +103,7 @@ i2c_csi_dsi: &i2c1 {
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 16 1>;
+--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
+@@ -90,7 +90,7 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 16 1>;
+--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
++++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+@@ -2,7 +2,7 @@
+ #include "bcm2708-rpi.dtsi"
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 47 0>;
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero-w.dts
+@@ -139,7 +139,7 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "actpwr";
+ 		gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
+--- a/arch/arm/boot/dts/bcm2708-rpi-zero.dts
++++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts
+@@ -93,7 +93,7 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "actpwr";
+ 		gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
+--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+@@ -90,13 +90,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 47 0>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "input";
+ 		gpios = <&gpio 35 0>;
+--- a/arch/arm/boot/dts/bcm270x.dtsi
++++ b/arch/arm/boot/dts/bcm270x.dtsi
+@@ -33,7 +33,7 @@
+ 		};
+ #endif
+ 
+-		/delete-node/ sdhci@7e300000;
++		/delete-node/ mmc@7e300000;
+ 
+ 		sdhci: mmc: mmc@7e300000 {
+ 			compatible = "brcm,bcm2835-mmc", "brcm,bcm2835-sdhci";
+--- a/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-2-b.dts
+@@ -90,13 +90,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 47 0>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "input";
+ 		gpios = <&gpio 35 0>;
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
+@@ -149,13 +149,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 29 0>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "default-on";
+ 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
+@@ -164,13 +164,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&virtgpio 0 0>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "input";
+ 		gpios = <&expgpio 7 0>;
+--- a/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
++++ b/arch/arm/boot/dts/bcm2710-rpi-cm3.dts
+@@ -123,7 +123,7 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&virtgpio 0 0>;
+--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+@@ -579,13 +579,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "default-on";
+ 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+--- a/arch/arm/boot/dts/bcm2711-rpi-400.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts
+@@ -28,11 +28,11 @@
+ 	};
+ 
+ 	leds {
+-		act {
++		led-act {
+ 			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ 		};
+ 
+-		pwr {
++		led-pwr {
+ 			label = "PWR";
+ 			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+ 			default-state = "keep";
+@@ -181,12 +181,14 @@
+ &hdmi0 {
+ 	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+ 	clock-names = "hdmi", "bvb", "audio", "cec";
++	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+ &hdmi1 {
+ 	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+ 	clock-names = "hdmi", "bvb", "audio", "cec";
++	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+@@ -586,14 +588,14 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "default-on";
+ 		default-state = "on";
+ 		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "default-on";
+ 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
++++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
+@@ -28,11 +28,11 @@
+ 	};
+ 
+ 	leds {
+-		act {
++		led-act {
+ 			gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ 		};
+ 
+-		pwr {
++		led-pwr {
+ 			label = "PWR";
+ 			gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+ 			default-state = "keep";
+@@ -193,12 +193,14 @@
+ &hdmi0 {
+ 	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 0>, <&clk_27MHz>;
+ 	clock-names = "hdmi", "bvb", "audio", "cec";
++	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+ &hdmi1 {
+ 	clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
+ 	clock-names = "hdmi", "bvb", "audio", "cec";
++	wifi-2.4ghz-coexistence;
+ 	status = "okay";
+ };
+ 
+@@ -597,13 +599,13 @@
+ };
+ 
+ &leds {
+-	act_led: act {
++	act_led: led-act {
+ 		label = "led0";
+ 		linux,default-trigger = "mmc0";
+ 		gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+ 	};
+ 
+-	pwr_led: pwr {
++	pwr_led: led-pwr {
+ 		label = "led1";
+ 		linux,default-trigger = "default-on";
+ 		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
diff --git a/target/linux/bcm27xx/patches-5.10/950-0737-overlays-rpi-poe-plus-Improve-the-cooling-levels.patch b/target/linux/bcm27xx/patches-5.10/950-0737-overlays-rpi-poe-plus-Improve-the-cooling-levels.patch
new file mode 100644
index 0000000000..76998f71b7
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0737-overlays-rpi-poe-plus-Improve-the-cooling-levels.patch
@@ -0,0 +1,29 @@
+From 2a30b8254d34a2656d798931f46af157afd152c0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 18 Aug 2021 17:26:49 +0100
+Subject: [PATCH] overlays: rpi-poe-plus: Improve the cooling levels
+
+The PoE HAT cooling levels are not well suited for the PoE+ HAT - the
+fan fails to come on until the temperature reaches the third trip point
+(50C).
+
+Give the rpi-poe-plus overlay a different set of cooling levels -
+0 32 64 128 255, as suggested by @chris-kai-in.
+
+See: https://github.com/raspberrypi/firmware/issues/1607
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
+@@ -17,3 +17,7 @@
+ 		};
+ 	};
+ };
++
++&fan0 {
++	cooling-levels = <0 32 64 128 255>;
++};
diff --git a/target/linux/bcm27xx/patches-5.10/950-0738-Makefiles-dt-Always-set-on-ARCH_BCM2835.patch b/target/linux/bcm27xx/patches-5.10/950-0738-Makefiles-dt-Always-set-on-ARCH_BCM2835.patch
new file mode 100644
index 0000000000..0cb30474b5
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0738-Makefiles-dt-Always-set-on-ARCH_BCM2835.patch
@@ -0,0 +1,35 @@
+From 72d78ec8b6898976ea46b1c0cb9780707985cd80 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Thu, 19 Aug 2021 14:28:56 +0100
+Subject: [PATCH] Makefiles: dt: Always set '-@' on ARCH_BCM2835
+
+On the BCM2835 architecture, always add the '-@' option to enable the
+generation of symbols, rather than relying on DTC_FLAGS being empty
+or correct.
+
+See: https://github.com/raspberrypi/linux/issues/3846
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/Makefile            | 2 +-
+ arch/arm64/boot/dts/broadcom/Makefile | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -1432,5 +1432,5 @@ subdir-y	:= overlays
+ 
+ # Enable fixups to support overlays on BCM2835 platforms
+ ifeq ($(CONFIG_ARCH_BCM2835),y)
+-	DTC_FLAGS ?= -@
++	DTC_FLAGS += -@
+ endif
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -16,5 +16,5 @@ subdir-y	+= stingray
+ 
+ # Enable fixups to support overlays on BCM2835 platforms
+ ifeq ($(CONFIG_ARCH_BCM2835),y)
+-	DTC_FLAGS ?= -@
++	DTC_FLAGS += -@
+ endif
diff --git a/target/linux/bcm27xx/patches-5.10/960-hwrng-iproc-set-quality-to-1000.patch b/target/linux/bcm27xx/patches-5.10/960-hwrng-iproc-set-quality-to-1000.patch
new file mode 100644
index 0000000000..fd09c7645a
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/960-hwrng-iproc-set-quality-to-1000.patch
@@ -0,0 +1,25 @@
+From d3e5e7f3a4e6f61e8c380b9a610212267ee72dbd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
+Date: Sat, 20 Feb 2021 19:24:50 +0100
+Subject: [PATCH] hwrng: iproc: set quality to 1000
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This allows khwrngd to make use of iproc-rng200.
+
+Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
+---
+ drivers/char/hw_random/iproc-rng200.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/char/hw_random/iproc-rng200.c
++++ b/drivers/char/hw_random/iproc-rng200.c
+@@ -263,6 +263,7 @@ static int iproc_rng200_probe(struct pla
+ 
+ 	priv->rng.name = pdev->name;
+ 	priv->rng.cleanup = iproc_rng200_cleanup;
++	priv->rng.quality = 1000;
+ 
+ 	if (of_device_is_compatible(dev->of_node, "brcm,bcm2711-rng200")) {
+ 		priv->rng.init = bcm2711_rng200_init;
-- 
2.30.2